JPH0128329Y2 - - Google Patents

Description

[Detailed Description of the Invention] Purpose of the Invention (Field of Industrial Application) This invention relates to a connecting pin structure for line equipment for holding electric wires such as insulators, their retaining fittings, and electric wire clamps.

(Prior art) Conventionally, for example, in order to connect a tension insulator and a strap, a connecting pin is passed through each connecting hole, and then a cotter pin is passed through an insertion hole formed at the tip of the pin, and the tip is inserted. The curved connecting pin was designed to prevent it from falling out of the connecting hole.

(Problem that the invention aims to solve) However, with the conventional cotter pin type insulator connection structure mentioned above, it is necessary to insert the connection pin and remove and attach the cotter pin manually, making assembly and disassembly difficult. In addition, since the connecting pins and split pins are separated, there is a problem in that parts are easily lost.

Structure of the invention (means for solving the problem) In order to solve the above-mentioned problem, this invention has the purpose of solving the above-mentioned problem. A locking member having a long hole formed in the portion thereof is rotatably supported by a shaft so as to interfere with the insertion hole, and a locking pin is fixed so as to be located in the long hole, and the locking member is rotatably supported by a shaft so as to interfere with the insertion hole. A biasing member is installed between the pin and the inner end of the elongated hole to bias the locking member in a direction in which the locking member is brought into pressure contact with the connecting pin, while the locking member is engaged with the tip of the connecting pin. A first engaging recess is provided on one side of the first engaging recess for regulating and holding the connecting pin in the detached position, and a locking member is provided on one side of the first engaging recess for holding the locking member when the connecting pin is pushed in the insertion direction. A slope is provided that resists the elasticity of the biasing member and pushes in a direction away from the engagement position, and further engages the locking member near the proximal end of the connecting pin, so that the connecting pin is in the fitted state. A means is adopted in which a second engaging recess is provided for regulating and holding the connecting pin, and an operating portion is provided at the base end of the connecting pin.

(Function) By employing the above-mentioned means, this invention functions as follows.

When the connecting pin is in the disengaged position, the locking member engages with the first engaging recess of the connecting pin and is urged by the urging member in a direction in which it comes into pressure contact with the first engaging recess. When the connecting pin is pushed in the insertion direction from this state, the locking member is moved in the disengaging direction against the elasticity of the biasing member due to the slope provided in the first engagement recess of the connecting pin. When the connecting pin is inserted into both insertion holes of the pair of connecting members, the locking member engages with the second engaging recess of the connecting pin by the biasing member, and the connecting pin is held in the inserted position. Ru.
Further, when the locking member is rotated to the disengagement position against the elasticity of the biasing member and the connecting pin is pulled in the disengagement direction, the locking member is moved against the first engagement recess at the tip of the connecting pin. The biasing member locks and holds the disengaged position. In this way, the connecting pin can be easily switched between the insertion position and the detached position by simply operating the locking member and the connecting pin. Furthermore, since the connecting pin does not come off from the connecting member, there is no chance of parts being lost.

(Example) Hereinafter, an example in which this invention is embodied in a connecting pin structure of a tension insulator device for a restraining column in an electric line will be described with reference to FIGS. 1 to 4.

First, the tension-resistant insulator device will be explained with reference to FIG. There is. A ground-side retainer 5 is fastened to the arm 1, and both ends of the hem 4a of the insulated wire 4 are held by retainer clamps 6. A tensile insulator 10 is connected between the ground-side retaining device 5 and the retaining clamp 6 by a connecting pin structure 7 according to the present invention.

Next, the connecting pin structure 7 will be explained based on FIGS. 1 to 3.

The ends of the retaining clamp 6 are formed into clevises 6a and 6b as a pair of connecting members, and the clevises 6
Insertion holes 6c and 6d are provided correspondingly to a and 6b. A locking lever 11 as a locking member having an arc shape as shown in FIG. 3 is rotatably supported by a shaft 12 on the outer surface of the one clevis 6a in correspondence with the insertion hole 6c. There is. A long hole 11a is provided at the tip of the locking lever 11,
A locking pin 13 fixed to the clevis 6a is engaged with the elongated hole 11a to regulate the rotation angle of the locking lever 11. In addition, the locking pin 13 and the elongated hole 11
A coil spring 14 as a biasing member is interposed between one end portion of a. The coil spring 14 always urges the locking lever 11 in a direction in which it comes into pressure contact with a connecting pin 15, which will be described below.

As shown in FIG. 1, a connecting pin 15 is attached to the clevis 6a by a locking lever 11 on the clevis 6a side.
It is fitted into the insertion hole 6c of a. The locking lever 11 is attached to the tip of the connecting pin 15.
A first engagement recess 15a is formed that engages and restricts and holds the connecting pin 15 in the disengaged position. Further, on one side of the first engaging recess 15a, when the connecting pin 15 is pushed in the fitting direction, the locking lever 11 is rotated about the shaft 12 against the elastic force of the coil spring 14 as shown in FIG. Rotate the locking lever 1 clockwise.
A slope 15b is formed that can release the engagement with the first engagement recess 15a. Furthermore, a second engaging recess 15 is provided near the base end of the connecting pin 15 for regulating and holding the connecting pin 15 in the inserted state passing through the insertion holes 6c and 6d of the clevises 6a and 6b.
c is provided. A spherical operating portion 15d is integrally formed at the base end of the connecting pin 15.

Next, the operation of the connecting pin structure 7 configured as described above will be explained.

As shown in FIG. 1, when the locking lever 11 is engaged with the first engagement recess 15a of the connecting pin 15 and the connecting pin 15 is locked in the disengaged position, there is no tension between the clevises 6a and 6b. The connecting fitting 16 of the insulator 10 is inserted, and the insertion hole 16a of the fitting is aligned with the insertion holes 6c and 6d. Thereafter, the operating portion 15d of the connecting pin 15 is pushed in the insertion direction.
Then, the slope 15b of the connecting pin 15 rotates the locking lever 11 counterclockwise in FIG. 2, the connecting pin 15 is moved in the insertion direction. And the second
As shown in the figure, when the tip of the connecting pin 15 passes through the insertion hole 6d of the clevis 6b, that is, when the pin 15 is moved to the insertion position, the locking lever 11 is inserted into the second engagement recess 15c of the connecting pin 15. When engaged, the pin 15 is held in the inserted position.

On the other hand, in order to change the connecting pin 15 from the fitted state to the detached state, manually rotate the locking lever 11 outward against the elasticity of the coil spring 14, and then pull the connecting pin 15 in the detaching direction. Then, the locking lever 11 slides on the large diameter part of the connecting pin 15, and the slope 1
5b, and is engaged with the first engaging recess 15a, and thus the connecting pin 15 is held at the detached position.

As described above, in this embodiment, the locking lever 11 is supported at two points by the shaft 12 and the locking pin 13, and at one point, the locking lever 11 is supported by the same elongated hole as the locking pin 13 located in the elongated hole 11a. The locking lever 11 is urged in the direction of pressing against the connecting pin 15 by the coil spring 14 interposed between the inner end of the locking lever 11a and is held stably, so that even if the electric wire etc. vibrates due to wind pressure, The locking lever 11 does not come off the connecting pin 15, and since it is supported at two points, no bending moment is applied to the supporting points even if the connecting pin 15 moves in the axial direction, so it can withstand loads in the axial direction. Strength stability can also be obtained.

Also, the rotation angle of the locking lever 11 is adjusted by the elongated hole 11a.
Since excessive movement of the locking lever 11 is restricted by the locking pin 13 that engages with the elongated hole 11a, no extra load is placed on the coil spring 14, and there is no risk of the coil spring 14 being damaged. , it is also possible to maintain the biasing force stably.

Furthermore, since the coil spring 14 is attached within the elongated hole 11a, there is no risk of it getting caught during work, making it safe.

Incidentally, the connecting pin 15 in the above embodiment may be operated directly by the operator's hand, but may also be operated indirectly using a tool shown in FIGS. 5 and 6. This tool 17 forms an elastically deformable spherical gripping part 20 having a slit 19 which is crimped and gripped by the spherical operating part 15d of the connecting pin 15 at the tip of the gripping part 18. An operating piece 21 for rotating the locking lever 11 is formed on the outside.

In order to operate the connecting pin 15 using this tool 17, the grip part 20 is fitted into the operating part 15d of the connecting pin 15, the actuating piece 21 is brought into contact with the tip of the locking lever 11, and the handle part 18 When the locking lever 11 is rotated, the locking lever 11 is rotated about the shaft 12. after that,
By pulling the handle part 18, the connecting pin 15
The operation of switching from the inserted position to the disengaged position can be easily performed with a single touch.

It should be noted that the present invention is not limited to the above-mentioned embodiments, and can be arbitrarily modified without departing from the spirit of the present invention.

Effects of the invention As detailed above, this invention enables the operation of easily connecting and disconnecting the insulator, its retaining metal fittings, wire clamps, and other connecting members to wire holding line equipment using connecting pins. This can be done quickly and easily, and it can be automated. Furthermore, since the locking member is biased and engaged with the first engagement recess even in the detached position, there is no need to lose the connecting pin during work. Furthermore, the locking member supported at two points is biased in the direction of press contacting the connecting pin at one point and held stably, so that the electric wire etc. will not vibrate due to wind pressure. The locking member will not come off the connecting pin, and since it is supported at two points, even if the connecting pin moves in the axial direction, no bending moment will be applied to the supporting points, so it will be strong even against axial loads. Stability is achieved, and in addition, the engagement between the elongated hole and the locking pin restricts the rotation angle of the locking member and prevents it from moving excessively, thereby preventing damage to the biasing member. There is no fear and the biasing force can be maintained stably, and since the biasing member is installed inside the long hole, there is no risk of it getting caught during work, making it safe.

[Brief explanation of drawings]

Fig. 1 is a cross-sectional view of an embodiment of this invention in a connecting pin structure of a tension insulator device in a detached state, Fig. 2 is a cross-sectional view of the connecting pin structure in a fitted state, and Fig. 3 is a cross-sectional view of the connecting pin structure of a tension insulator device. 4 is a front view showing the installation state of the locking lever, FIG. 4 is a front view showing the entire tension insulator device, FIG. 5 is a sectional view showing the tool for operating the connecting pin, and FIG.
The figure is a front view of the tool. 5... Ground side stopper, 6a, 6b... Clevis as a connecting member, 6c, 6d... Insertion hole, 7...
...Connecting pin structure, 10... Tension-resistant insulator, 11... Locking lever as a locking member, 11a... Long hole, 1
2... Shaft, 13... Locking pin, 14... Coil spring as a biasing member, 15... Connection pin, 15a
...first engagement recess, 15b...slope, 15c...
Second engagement recess, 15d...operation section.

Claims (1)

[Claims for Utility Model Registration] 1. Of a pair of connecting members 6a and 6b provided with insertion holes 6c and 6d for connecting pins 15, one of the connecting members 6a has an elongated hole 11a at its tip on the outer surface thereof.
The locking member 11 formed with
The locking pin 13 is rotatably supported by the shaft 12 so as to interfere with the long hole 11.
a biasing member that is fixedly attached to the inner end of the locking pin 13 and the inner end of the elongated hole 11a and that biases the locking member 11 in a direction that presses the locking member 11 against the connecting pin 15. On the other hand, a first engagement recess 15a is provided at the distal end of the connecting pin 15 to engage the locking member 11 and to restrict and hold the connecting pin 15 in the disengaged position. A connecting pin 15 is provided on one side of the engaging recess 15a.
When the locking member 1 is pushed in the insertion direction, the locking member 1
1 is provided with a slope 15b that pushes the pin 1 in a direction away from the engagement position against the elasticity of the biasing member 14, and further engages the locking member 11 near the proximal end of the connecting pin 15. A connecting pin structure for a line equipment for holding electric wires, characterized in that a second engaging recess 15c is provided to restrict and hold the connecting pin 15 in a fitted state, and an operating portion 15d is provided at the base end of the connecting pin 15. 2. The base end operating portion 15d of the connecting pin 15 is formed in a spherical shape.
Connection pin structure of line equipment for holding electric wires as described in .