CN113246830B - A dumper for building construction - Google Patents

Abstract

The invention relates to a dumper for construction, comprising a rotary frame body, and buffer connection blocks are fixedly installed at the four corners of the bottom of the rotary frame body; The setting can realize the relative locking between the rotating frame body and the outer frame of the bucket. When the two dumping buckets are unloaded, the outer frame of the bucket drives them to return to their original position. When the rotating guide assembly rotates to the end of the rotating groove, the electric push The rod moves, the push rod is pushed into the cavity, and the locking bracket is pressed down. The locking bracket takes the fixed axis as the rotation center and turns over. The upper end of the locking bracket is clamped into the groove at the lower end of the locking cylinder, and the At the same time, the semi-circular toothed disc meshes with the teeth at the lower end of the driving rod, and drives the driving rod to move down. It rotates relative to the outer frame of the body during transportation, which enhances the locking effect.

Description

A dumper for building construction

technical field

The invention relates to the technical field of dumpers, in particular to a dumper for building construction.

Background technique

A dump truck is a special vehicle for short-distance conveying of materials with a tippable hopper. A "bucket"-shaped container is mounted on the body, which can be flipped over for easy unloading. It is suitable for short-distance transportation of various bulk materials such as sand, earth, coal, ore, etc. It has strong power and usually has a mechanical return bucket function.

It consists of a hopper and a walking chassis. The hopper is installed at the front of the tire walking chassis, and is tipped and unloaded by the gravity of the material in the hopper or the thrust of the hydraulic cylinder. According to different directions, the discharge can be divided into front turning discharge, rotary discharge, side turning discharge, high fulcrum discharge (the discharge height is fixed) and lifting and tipping discharge (the discharge height can be changed arbitrarily).

Most of the ordinary dump trucks are operated in the form of front towing and rear hanging, which has high requirements on the operating skills of the operators, especially when unloading, once the operation is careless, it will cause the cab to be tilted. It is very dangerous, and when unloading, it is tail unloading, the unloading speed is slow, and it is not convenient for forklifts to enter.

SUMMARY OF THE INVENTION

(1) Technical problems to be solved

The purpose of the present invention is to overcome the deficiencies of the prior art, meet the actual needs, and provide a dumper for construction to solve the above-mentioned technical problems.

(2) Technical solutions

In order to realize the purpose of the present invention, the technical scheme adopted in the present invention is:

A dumper for construction, comprising a rotary frame body, four corners of the bottom of the rotary frame body are fixedly installed with buffer connection blocks; a vehicle body support frame is arranged below the buffer connection blocks; The vehicle body support frame adopts four, and two fixed columns are welded above each vehicle body support frame, and a shock-absorbing spring is sleeved on the fixed column; a traction shaft is provided below one end of the rotating frame body ; the traction shaft is movably connected with a vehicle body towing frame; two of the four described vehicle body support frames are a group, and each group of vehicle body support frames is connected with an axle through a bearing; the two ends of the vehicle axle are Fitted with wheels;

The upper part of the rotating frame body is fixedly installed with the outer frame of the vehicle bucket; the middle position inside the outer frame of the vehicle bucket is fixedly installed with a hydraulic device; the two sides of the hydraulic device are respectively provided with a tipping bucket; The two sides of the tipping bucket away from the hydraulic device are provided with raised shafts, and the tipping bucket is movably connected with the outer frame of the bucket through the raised shafts; the two sides of the hydraulic device are also provided with dischargers for lifting the two tipping buckets. an oil cylinder; the unloading oil cylinder is connected with the hydraulic device through an oil pipe.

Further, a hopper baffle is provided at one end of the tipping bucket away from the hydraulic device; both ends of the hopper baffle are movably connected with the tipping bucket through a rotating shaft; protective case.

Further, a rotating disk is fixedly installed in the middle position of the bottom of the outer frame of the vehicle body; a rotating guide assembly is fixedly installed on both sides of the rotating disk; the lower ends of the two rotating guide assemblies are inserted into the rotating groove. Inside.

Further, the rotating frame body includes a frame body, and the frame body is a rectangular frame made of C-shaped steel; two ends of the interior of the frame body are fixedly installed with fixing blocks; the The fixed block is provided with a rotating groove; one end of the rotating groove is provided with a locking mechanism; the interior of the fixed block is provided with a cavity.

Further, a number of countersunk holes are opened on the upper surface around the frame body, and rolling balls are movably connected in the counterbore; a fixed base is arranged in the middle position inside the frame body; A drive motor is fixedly installed at the bottom of the base, the output shaft of the drive motor penetrates to the top of the fixed base, and the drive motor is located inside the bottom protective shell; a rotating support plate is arranged above the fixed base, and the rotating support plate and the drive motor The output shaft is connected by transmission; the rotating support plate is fixedly connected with the rotating plate through bolts.

Further, the rotation guide assembly includes a locking cylinder, an electric push rod and a slot, and the locking cylinder is fixedly installed at the bottom of the outer frame of the body; the electric push rod is arranged inside the locking cylinder and one side of the lower end of the locking cylinder is also provided with a card slot which is convenient for the locking mechanism to be snapped.

Further, the locking mechanism includes a locking bracket, and the locking bracket is fixedly installed in the cavity through a fixed shaft; the inner side of the locking bracket is coaxially provided with a semicircular toothed disc; The toothed plate is fixedly connected with the locking bracket; the semi-circular toothed plate is connected with the driving rod through the teeth; the driving rod is arranged in an L shape, and the top of the driving rod is provided with a locking block.

Further, the locking bracket is arranged in an L shape, the end of the locking bracket away from the cavity is provided with a raised head that can cooperate with the card slot, and the top of the raised head is provided with a lock that can be connected with the locking block. stop groove.

(3) Beneficial effects:

A. In the present invention, an outer frame of the body is arranged above the rotating frame body, and two dump buckets are arranged on the outer frame of the body. The hydraulic device provides hydraulic power for the unloading cylinder, and the two unloading cylinders respectively The two dumping buckets are lifted to both sides, and the unloading is realized. The two dumping buckets are used to unload at the same time, which can improve the unloading efficiency and prevent the dangerous situation of the front of the car from being lifted. The advantages of unloading on both sides are: Stacks are formed on both sides of the car body, and a channel is formed between the two stacks, which greatly facilitates the entry of the forklift.

B. In the present invention, the bottom of the outer frame of the vehicle bucket is provided with a rotating disk, the rotating disk is fixedly connected with the rotating support disk, and the rotating support disk is driven to rotate by a driving motor. Under normal transportation conditions, the two tipping buckets are respectively located in the rotating frame body. When unloading, the drive motor drives the outer frame of the body with two tipping buckets to rotate 90 degrees through the rotating disc and the rotating support disc, so that the two tipping buckets are located above the two sides of the rotating frame body. , so as to achieve double-sided unloading.

C. In the present invention, a rotary guide assembly is arranged at the bottom of the outer frame of the body, and the rotary guide assembly rotates along the rotation groove to limit the rotation angle of the outer frame of the body to prevent the outer frame of the body from rotating excessively and causing the tipping bucket to fail. The situation of unloading on both sides occurs.

D. In the present invention, a number of countersunk holes are provided on the upper surface around the frame body, and rolling balls are embedded in the counterbore, and the rolling balls can move in the countersunk holes. Under normal conditions, several rolling balls The upper vertex of the outer frame of the body is in contact with the bottom of the outer frame of the body, which supports the outer frame of the body. When the outer frame of the body needs to rotate, it can rotate to ensure the smooth rotation of the outer frame of the body. Ensure that the outer frame of the body does not deflect while rotating.

E. In the present invention, a shock-absorbing spring and a buffer connection block are arranged between the rotating frame body and the body support frame, which has a good shock-absorbing effect during the transportation of materials, and prevents the materials in the dumping bucket from being caused by uneven roads. Too many drops.

F. In the present invention, the relative locking of the rotary frame body and the outer frame of the bucket can be realized by the setting of the rotating guide assembly and the locking mechanism. When the two dumping buckets are unloaded, the outer frame of the bucket drives them to return to their original position. , When the rotating guide assembly rotates to the end of the rotating groove, the electric push rod moves, the push rod is pushed into the cavity, and the locking bracket is pressed down. The upper end of the locking cylinder is clamped into the groove at the lower end of the locking cylinder. At the same time, the semi-circular toothed disc meshes with the teeth at the lower end of the driving rod, and drives the driving rod to move down, and the locking block arranged above the driving rod moves down. It is clamped with the locking groove to prevent the rotating frame body and the outer frame of the body from rotating relative to each other during transportation, thereby enhancing the locking effect.

Description of drawings

Fig. 1 is the transport state structure schematic diagram of dumper for building construction of the present invention;

Fig. 2 is the bottom view of Fig. 1 of dumper for building construction of the present invention;

Fig. 3 is the structure schematic diagram of the dumping state of the dumper for building construction according to the present invention;

Fig. 4 is the bottom view in Fig. 3 of dumper for building construction of the present invention;

5 is a schematic structural diagram of a rotary frame body of a dumper for building construction according to the present invention;

6 is a bottom view of the outer frame of the body of the dumper for building construction of the present invention;

7 is a schematic structural diagram of the locking mechanism of the dumper for building construction according to the present invention;

Fig. 8 is a partial enlarged view of Fig. 7 of the dumper for building construction according to the present invention.

The reference numbers are as follows:

Rotary frame body 1, body support frame 2, shock absorber spring 3, buffer connection block 4, wheel 5, axle 6, traction shaft 7, body traction frame 8, bottom protective shell 9, body outer frame 10, Hydraulic device 11, tipping bucket 12, hopper baffle 13, unloading cylinder 14, rotary guide assembly 15, locking cylinder 151, electric push rod 152, card slot 153, rotating disc 16, frame body 101, support arm 102, fixed Base 103, rotating support plate 104, rolling ball 105, fixing block 106, rotating groove 107, locking mechanism 108, cavity 109, locking bracket 1081, fixed shaft 1082, semi-circular tooth plate 1083, locking groove 1084, drive rod 1085, teeth 1086, locking block 1087.

Detailed ways

Below in conjunction with accompanying drawing 1-8 and embodiment, the present invention is further described:

A dumper for building construction, comprising a rotary frame body 1, a buffer connection block 4 is fixedly installed at the four corners of the bottom of the rotary frame body 1; a vehicle body is arranged below the buffer connection block 4 Support frame 2; the vehicle body support frame 2 adopts four, and two fixed columns are welded above each vehicle body support frame 2, and a shock-absorbing spring 3 is sleeved on the fixed column; the rotating frame A traction shaft 7 is arranged below one end of the body 1; the traction shaft 7 is movably connected with a body traction frame 8; The axle 6 is connected with the axle 6 through the bearing; the two ends of the axle 6 are fitted with the wheels 5;

A body outer frame 10 is fixedly installed above the rotary frame body 1 ; a hydraulic device 11 is fixedly installed in the middle position of the inner body of the body outer frame 10 ; two sides of the hydraulic device 11 are respectively arranged There is a tipping bucket 12; the two sides of the tipping bucket 12 away from the hydraulic device 11 are provided with raised shafts, and the tipping bucket 12 is movably connected with the outer frame 10 of the vehicle bucket through the raised shafts; the two sides of the hydraulic device 11 are also There are unloading oil cylinders 14 for lifting the two dumping buckets 12 ; the unloading oil cylinders 14 are connected with the hydraulic device 11 through oil pipes.

In the present invention, a body outer frame 10 is provided above the rotary frame body 1, and two dump buckets 12 are provided on the body outer frame 10. The hydraulic device 11 provides hydraulic power for the unloading cylinder 14. The material oil cylinder 14 lifts the two dumping buckets 12 to both sides respectively, and realizes the unloading. The two dumping buckets 12 are used to unload the material at the same time, which can improve the unloading efficiency and prevent the dangerous situation of the front of the car from being lifted. The advantage of unloading on both sides is that a pile is formed on both sides of the car body, and a channel is formed between the two piles, which greatly facilitates the entry of the forklift.

A hopper baffle plate 13 is provided at one end of the tipping bucket 12 away from the hydraulic device 11; both ends of the hopper baffle plate 13 are movably connected with the tipping bucket 12 through a rotating shaft; the middle position of the bottom of the rotary frame body 1 is fixed A bottom protective case 9 is installed.

A rotating disk 16 is fixedly installed at the middle position of the bottom of the outer frame of the vehicle body 10; the rotating guide assemblies 15 are fixedly installed on both sides of the rotating disk 16; the lower ends of the two rotating guide assemblies 15 are inserted into inside the rotating groove 107 .

In the present invention, a rotation guide assembly 15 is provided at the bottom of the outer frame of the body 10 , and the rotation guide assembly 15 rotates along the rotation groove 107 to limit the rotation angle of the outer frame of the body 10 to prevent the outer frame of the body 10 from rotating excessively As a result, the situation that the tipping bucket 12 cannot be unloaded on both sides occurs.

The rotating frame body 1 includes a frame body 101, and the frame body 101 is a rectangular frame made of C-shaped steel; the two ends of the interior of the frame body 101 are fixedly installed with fixing blocks 106; The fixing block 106 is provided with a rotating slot 107 ; one end of the rotating slot 107 is provided with a locking mechanism 108 ; the interior of the fixing block 106 is provided with a cavity 109 .

The upper surface around the frame body 101 is provided with a number of counterbores, and rolling balls 105 are movably connected in the counterbore; a fixed base 103 is arranged in the middle of the frame body 101 ; the The bottom of the fixed base 103 is fixedly installed with a drive motor, the output shaft of the drive motor penetrates to the top of the fixed base 103, and the drive motor is located inside the bottom protective shell 9; the top of the fixed base 103 is provided with a rotating support plate 104, and The rotating support plate 104 is connected with the output shaft of the drive motor in a driving manner; the rotating support plate 104 is fixedly connected with the rotating plate 16 through bolts.

In the present invention, the bottom of the outer frame 10 is provided with a rotating disk 16. The rotating disk 16 is fixedly connected with the rotating support disk 104. The rotating support disk 104 is driven to rotate by a driving motor. In a normal transportation state, the two dump buckets 12 are respectively located in the rotating position. When unloading, the drive motor drives the outer frame 10 on which the two dump buckets 12 are installed to rotate 90 degrees through the rotating disk 16 and the rotating support plate 104, so that the two dump buckets 12 It is located above both sides of the rotating frame body 1, so as to realize double-side unloading.

The rotating guide assembly 15 includes a locking cylinder 151, an electric push rod 152 and a locking slot 153. The locking cylinder 151 is fixedly installed at the bottom of the outer frame 10 of the body; The inside of the locking cylinder 151; one side of the lower end of the locking cylinder 151 is also provided with a latching slot 153 for the locking mechanism 108 to be latched.

The locking mechanism 108 includes a locking bracket 1081, and the locking bracket 1081 is fixedly installed in the cavity 109 through a fixed shaft 1082; the inner side of the locking bracket 1081 is coaxially provided with a semicircular toothed disc 1083; The semi-circular toothed plate 1083 is fixedly connected with the locking bracket 1081; the semi-circular toothed plate 1083 is connected with the driving rod 1085 through the teeth 1086; the driving rod 1085 is arranged in an L shape, and the top of the driving rod 1085 is provided with Locking block 1087.

The locking bracket 1081 is arranged in an L shape, and the end of the locking bracket 1081 away from the cavity 109 is provided with a raised head that can cooperate with the card slot 153, and the top of the raised head is provided with a locking block 1087. the locking groove 1084.

In the present invention, a shock absorbing spring 3 and a buffer connecting block 4 are arranged between the rotating frame body 1 and the body supporting frame 2, which has a good shock absorbing effect during the transportation of materials and prevents the bucket from tipping due to uneven roads. 12 Too much material falls.

In the present invention, through the arrangement of the rotary guide assembly 15 and the locking mechanism 108, the relative locking of the rotary frame body 1 and the outer frame of the body 10 can be realized. When the two dumpers 12 are unloaded, the outer frame of the body 10 drives the It returns to its original position. When the rotation guide assembly 15 rotates to the end of the rotation slot 107, the electric push rod 152 moves, the push rod is pushed into the cavity 109, and the locking bracket 1081 is pressed down to fix the shaft. 1082 is the center of rotation, which is turned over. The upper end of the locking bracket 1081 is snapped into the groove at the lower end of the locking cylinder 151. At the same time, the semi-circular toothed disc 1083 meshes with the teeth 1086 at the lower end of the driving rod 1085, and drives the driving The rod 1085 moves down, the locking block 1087 arranged above the driving rod 1085 moves down, and is engaged with the locking groove 1084 to prevent the rotating frame body 1 and the outer frame 10 from rotating relative to each other during transportation. Enhanced locking effect

The working principle of the present invention includes the following process:

In a normal state, the outer frame 10 of the body is locked with the locking mechanism 108 through the rotating guide assembly 15, and the two dumping buckets 12 are located at the head and the tail of the rotating body 1, respectively. The upper apex of the ball 105 is in contact with the bottom of the outer frame 10 of the body, and plays a supporting role for the outer frame 10 of the body. A shock-absorbing spring 3 and a buffer connection are arranged between the rotary frame body 1 and the body support frame 2 Block 4 has a good shock absorption effect during the material transportation, preventing the material in the dumping bucket 12 from falling too much due to uneven roads;

When unloading, the motor drives the outer frame 10 on which the two tipping buckets 12 are installed to rotate by 90 degrees through the rotating disc 16 and the rotating support disc 104, so that the two tipping buckets 12 are located above the two sides of the rotating frame body 1, The hydraulic device 11 provides hydraulic power for the unloading cylinder 14, and the two unloading cylinders 14 lift the two dumping buckets 12 to both sides respectively, and realize the unloading. Second, to prevent the dangerous situation of the front of the forklift being lifted, the advantage of unloading on both sides is that a material pile is formed on both sides of the vehicle body, and a channel is formed between the two material piles, which greatly facilitates the operation of the forklift. Enter;

When the two dumping buckets 12 are unloaded, the outer frame 10 of the bucket drives them to return to their original position, and when the rotating guide assembly 15 rotates to the end of the rotating groove 107, the electric push rod 152 moves, and the push rod is pushed into the cavity 109, And press down the locking bracket 1081, the locking bracket 1081 takes the fixed shaft 1082 as the center of rotation, and turns over, and the upper end of the locking bracket 1081 is snapped into the groove at the lower end of the locking cylinder 151. It engages with the teeth 1086 at the lower end of the driving rod 1085, and drives the driving rod 1085 to move down. The locking block 1087 arranged above the driving rod 1085 moves down, and engages with the locking groove 1084 to prevent the rotating frame body 1 and the outer frame of the body 10 rotate relative to each other during transportation, which enhances the locking effect.

Beneficial effects of the present invention:

In the present invention, a body outer frame 10 is provided above the rotary frame body 1, and two dump buckets 12 are provided on the body outer frame 10. The hydraulic device 11 provides hydraulic power for the unloading cylinder 14. The material oil cylinder 14 lifts the two dumping buckets 12 to both sides respectively, and realizes the unloading. The two dumping buckets 12 are used to unload the material at the same time, which can improve the unloading efficiency and prevent the dangerous situation of the front of the car from being lifted. The advantage of unloading on both sides is that a pile is formed on both sides of the car body, and a channel is formed between the two piles, which greatly facilitates the entry of the forklift.

In the present invention, the bottom of the outer frame 10 is provided with a rotating disk 16. The rotating disk 16 is fixedly connected with the rotating support disk 104. The rotating support disk 104 is driven to rotate by a driving motor. In a normal transportation state, the two dump buckets 12 are respectively located in the rotating position. When unloading, the drive motor drives the outer frame 10 on which the two dump buckets 12 are installed to rotate 90 degrees through the rotating disk 16 and the rotating support plate 104, so that the two dump buckets 12 It is located above both sides of the rotating frame body 1, so as to realize double-side unloading.

In the present invention, a rotation guide assembly 15 is provided at the bottom of the outer frame of the body 10 , and the rotation guide assembly 15 rotates along the rotation groove 107 to limit the rotation angle of the outer frame of the body 10 to prevent the outer frame of the body 10 from rotating excessively As a result, the situation that the tipping bucket 12 cannot be unloaded on both sides occurs.

In the present invention, a number of counterbore holes are provided on the upper surface of the periphery of the frame body 101, and rolling balls 105 are embedded in the counterbore, and the rolling ball 105 can move in the counterbore. The upper apex of the ball 105 is in contact with the bottom of the outer frame of the body 10, and plays a supporting role for the outer frame of the body 10. When the outer frame of the body 10 needs to rotate, it can rotate to ensure the smoothness of the outer frame of the body 10. It also ensures that the outer frame 10 of the body will not be deflected while rotating.

In the present invention, a shock absorbing spring 3 and a buffer connecting block 4 are arranged between the rotating frame body 1 and the body supporting frame 2, which has a good shock absorbing effect during the transportation of materials and prevents the bucket from tipping due to uneven roads. 12 Too much material falls.

In the present invention, through the arrangement of the rotary guide assembly 15 and the locking mechanism 108, the relative locking of the rotary frame body 1 and the outer frame of the body 10 can be realized. When the two dumpers 12 are unloaded, the outer frame of the body 10 drives the It returns to its original position. When the rotation guide assembly 15 rotates to the end of the rotation slot 107, the electric push rod 152 moves, the push rod is pushed into the cavity 109, and the locking bracket 1081 is pressed down to fix the shaft. 1082 is the center of rotation, which is turned over. The upper end of the locking bracket 1081 is snapped into the groove at the lower end of the locking cylinder 151. At the same time, the semi-circular toothed disc 1083 meshes with the teeth 1086 at the lower end of the driving rod 1085, and drives the driving The rod 1085 moves down, the locking block 1087 arranged above the driving rod 1085 moves down, and is engaged with the locking groove 1084 to prevent the rotating frame body 1 and the outer frame 10 from rotating relative to each other during transportation. Enhanced locking effect.

The embodiment of the present invention announces the preferred embodiment, but is not limited to this, those of ordinary skill in the art can easily understand the spirit of the present invention according to the above-mentioned embodiment, and make different extensions and changes, However, as long as they do not depart from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims (4)

1. A dumper for construction, comprising a rotary frame body (1), characterized in that a buffer connection block (4) is fixedly installed at the four corners of the bottom of the rotary frame body (1); A vehicle body support frame (2) is arranged below the buffer connection block (4); four vehicle body support frames (2) are used, and two fixing columns are welded above each vehicle body support frame (2). , and a shock-absorbing spring (3) is sleeved on the fixed column; a traction shaft (7) is arranged below one end of the rotating frame body (1); the traction shaft (7) is movably connected with a vehicle Bucket traction frame (8); four of the vehicle body support frames (2) as a group, each set of vehicle body support frames (2) is connected with an axle (6) through a bearing; the vehicle axle (6) Wheels (5) are fitted at both ends of the ); an outer frame (10) is fixedly installed on the top of the rotating frame body (1); the inner middle position of the outer frame (10) is A hydraulic device (11) is fixedly installed; two sides of the hydraulic device (11) are respectively provided with a tipping bucket (12); two sides of the tipping bucket (12) away from one end of the hydraulic device (11) are provided with protrusions The tipping bucket (12) is movably connected with the outer frame (10) of the vehicle bucket through the protruding shaft; the two sides of the hydraulic device (11) are also provided with unloading oil cylinders ( 14); the unloading oil cylinder (14) is connected with the hydraulic device (11) through an oil pipe; the end of the tipping bucket (12) away from the hydraulic device (11) is provided with a hopper baffle plate (13); the hopper Both ends of the baffle plate (13) are movably connected with the tipping bucket (12) through a rotating shaft; a bottom protective shell (9) is fixedly installed at the middle position of the bottom of the rotating frame body (1); the outer frame of the vehicle bucket (10) A rotating disk (16) is fixedly installed in the middle position of the bottom; the rotating guide assemblies (15) are fixedly installed on both sides of the rotating disk (16); the lower ends of the two rotating guide assemblies (15) are fixedly installed is inserted into the rotating groove (107); the locking mechanism (108) includes a locking bracket (1081), and the locking bracket (1081) is fixedly installed in the cavity (109) through the fixing shaft (1082) inside; the inner side of the locking bracket (1081) is coaxially provided with a semi-circular toothed plate (1083); the semi-circular toothed plate (1083) is fixedly connected with the locking bracket (1081); the semicircular toothed plate (1081) 1083) is connected with the driving rod (1085) through the teeth (1086); the driving rod (1085) is arranged in an L shape, and a locking block (1087) is provided on the top of the driving rod (1085); the locking The bracket (1081) is arranged in an L shape, the end of the locking bracket (1081) away from the cavity (109) is provided with a protruding head that can cooperate with the clamping groove (153), and the top of the protruding head is provided with a locking block that can be engaged with (1087) mating connection locking slot (1084). 2. The construction dumper according to claim 1, characterized in that: the rotary frame body (1) comprises a frame body (101), and the frame body (101) is C-shaped A rectangular frame made of steel; two ends of the inside of the frame body (101) are fixedly installed with fixing blocks (106); One end of the slot (107) is provided with a locking mechanism (108); a cavity (109) is provided inside the fixing block (106). 3. The dumper for building construction according to claim 2, characterized in that: the upper surface around the frame body (101) is provided with several counterbores, and rolling balls (101) are movably connected in the counterbores. 105); a fixed base (103) is provided in the middle position inside the frame body (101); a drive motor is fixedly installed at the bottom of the fixed base (103), and the output shaft of the drive motor penetrates to the fixed base ( 103), and the drive motor is located inside the bottom protective shell (9); a rotating support plate (104) is arranged above the fixed base (103), and the rotating support plate (104) is driven with the output shaft of the drive motor. Connection; the rotating support plate (104) is fixedly connected with the rotating plate (16) through bolts. 4. The dumper for construction according to claim 3, characterized in that: the rotating guide assembly (15) comprises a locking cylinder (151), an electric push rod (152) and a clamping slot (153), The locking cylinder (151) is fixedly installed at the bottom of the body outer frame (10); the electric push rod (152) is arranged inside the locking cylinder (151); the locking cylinder (151) One side of the lower end is also provided with a card slot (153) which is convenient for the locking mechanism (108) to be locked.

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