CN204282929U - Bracing wire sheath - Google Patents

Abstract

The utility model discloses a pull wire sheath. A slit extending along the axial direction is provided on the sleeve wall of the thick sleeve to divide the sleeve wall into a fixed part and a movable part. The part is narrower and farther away from the wider movable wedge platform at the end of the movable part. The fixed part is fixed with a static wedge platform on the outer wall of the fixed part. The inner wall of the fixed part is fixed with an elastic inner plate spaced apart from the fixed part. The inner plate and the fixed part are fixed. There is an inner cavity capable of accommodating movable parts between the parts, and the inner wall of the inner plate is fixed with an inner wedge platform that is narrower near the end of the inner plate and wider than the end of the inner plate, and clamps the pull wire from both sides of the pull wire. The two ends of the clamping piece are fixed with the outer arc plate supporting the inner wall of the thick sleeve, the thick sleeve is fixed on the arc plate through the fastener, and the upper part of the clamping piece is provided with the lower end of the thin sleeve. Clamping part. The pull wire sheath is simple to install and quick to operate, suitable for batch installation projects, stable and reliable after installation, and has a long service life.

Description

Cable sheath

technical field

The utility model relates to a pull wire sheath.

Background technique

In the erection of power lines, in order to ensure the force balance of the pole, it is necessary to install a stay wire between the pole and the ground. The stay wire is generally a multi-strand steel strand. The uneven force will seriously affect the safety of the entire transmission line. Due to the small surface area of the exposed backguy, it is difficult to attract people's attention visually, which may cause pedestrians or vehicles to collide by mistake, and stubble at the end of the backguy sometimes hurts passing pedestrians. In order to solve the above problems, in actual use, a warning sheath is generally added to the exposed pull wires, so that it can attract people's attention visually, which not only protects the safety of passing pedestrians, but also ensures the safety of the pull wires and power supply lines.

The traditional pull wire sheath is just a piece of pipe body that is set on the outside of the pull wire. The pipe body includes a thick sleeve set on the lower part of the stay wire and a thin sleeve set on the upper part of the stay wire. warning effect. The traditional pull wire sheath has simple structure, low cost and high popularity rate. But the disadvantages of this kind of pull wire sheath are: 1. The pipe body is only set on the stay wire, and a reliable limit and relative fixation cannot be formed between the pipe body and the stay wire. Therefore, when subjected to wind or other external forces, the sheath will Moving up or down along the pull wire loses the proper warning function; 2. The traditional sheath is a two-body structure. During installation, not only are there many connecting parts, the operation is cumbersome, but also it is not reliable after installation and has a low service life.

Contents of the invention

The technical problem to be solved by the utility model is to provide a pull wire sheath with reasonable structure, simple installation, fast operation, suitable for batch installation projects, stable and reliable after installation, and long service life in view of the above defects.

In order to solve the above technical problems, the cable sheath includes a thick cover set on the lower part of the stay wire and a thin cover set on the upper part of the stay wire. The gap extending in the axial direction of the movable part is fixed on the inner wall of the movable part with a movable wedge platform that is narrower near the end part of the movable part and wider than the end part of the movable part, and is fixed on the outer wall of the fixed part near the end part of the fixed part The static wedge platform is narrower and wider than the end part of the fixed part. The inner wall of the fixed part is fixed with an elastic inner plate spaced apart from the fixed part. There is an inner cavity capable of accommodating the movable part between the inner plate and the fixed part. , the inner wall of the inner plate is fixed with an inner wedge platform that is narrower near the end of the inner plate and wider than the end of the inner plate. It also includes a clamping piece that clamps the stay wire from both sides of the stay wire. Both ends of the clamping piece are fixed. There is an outer arc plate supporting the inner wall of the thick sleeve, the thick sleeve is fixed on the arc plate through fasteners, and the upper part of the clamping part is provided with a clamping part that is clamped and matched with the lower end of the thin sleeve.

The pull wire sheath has a reasonable structure, simple installation and fast operation through a self-locking clamping installation structure. It is suitable for batch installation projects, stable and reliable after installation, and has a long service life.

The self-locking clamping installation structure mainly includes a fixed part and a movable part which divide the thick sleeve through a gap, and related structural components arranged on the fixed part and the movable part. The thick sleeve is generally made of plastic materials such as pvc, and has a certain tension or elasticity. Therefore, when the thick sleeve is divided by the axially extending gap, the movable part and the fixed part will be pressed together under the action of natural elastic force. The movable wedge platform is fixed on the inner wall of the movable part. The cross section of the movable wedge platform is wedge-shaped. The part close to the end of the movable part is narrower, and the part far away from the end of the movable part is wider. "Barbs". akin. A static wedge platform is fixed on the outer wall of the fixed part. The cross section of the static wedge platform is also wedge-shaped. The part close to the end of the fixed part is narrower, and the part far away from the end of the fixed part is wider. Form a "barb". When the movable part and the fixed part are squeezed by external force, and the movable wedge platform on the movable part slides to the static wedge platform on the fixed part, the movable part will gradually slide to the outside of the fixed part. When the wide end of the movable wedge table slides over the wide end of the static wedge table, since the thick sleeve has self-recovering elastic force, the dynamic wedge table and the static wedge table will be clamped together under this elastic force, that is, two "inverted wedge tables" Hook" to hang together. For convenience of description, this state is referred to as "outer locking" state.

An inner plate is fixed on the inner wall of the fixed part. The inner plate and the fixed part are arranged at intervals. An inner cavity is formed between the inner plate and the inner wall of the fixed part. The width of the inner cavity matches the width of the movable part. Therefore, under the action of external force, the The movable part is inserted into the lumen. For convenience of description, the inner cavity wall of the inner plate is called the inner wall, and the other side wall is called the outer wall. The end of the inner wall of the inner plate is fixed with an inner wedge. The cross section of the inner wedge is wedge-shaped. Form a "barb". When the movable part and the fixed part are squeezed by external force to make the movable part slide towards the inner cavity, the movable wedge platform on the movable part will slide along the inner wedge platform on the inner plate. At this time, due to the elasticity of the inner plate, the inner plate will Squeezed outward by the movable part. When the wide end of the movable wedge table slides over the wide end of the inner wedge table, since the inner plate has self-recovering elastic force, the movable wedge table and the inner wedge table will be clamped together under this elastic force, that is, two "inverted wedge tables" Hook" to hang together. For convenience of description, this state is referred to as "internal locking" state.

The internal locking state is mainly used during installation. After locking, the movable part and the fixed part are connected as a whole, and it is difficult to separate, so it has a certain anti-theft effect. The outer locking state is mainly used in the process of production, storage and transportation to prevent inner locking before installation.

The pull wire sheath also includes a clamping part, which consists of two parts and is used in pairs. When in use, the two parts are respectively placed on both sides of the stay wire and locked, so that the stay wire can be clamped, and the purpose of fixing the clamping part on the stay wire is realized. Both ends of the clamping part are fixed with outer arc plates, the outer wall of the outer arc plate is adapted to the shape of the inner wall of the thick sleeve, and the two are supported and matched together, and the thick sleeve is fixed on the arc plate by fasteners. The upper part of the clamping part is provided with a clamping part, and the main function of the clamping part is to clamp and fit together with the lower end of the thin sleeve, so as to play the role of fixing the thin sleeve.

As an improvement, a positioning block is fixed on the inner wall of the inner cavity and is limitedly matched with the end of the movable part.

After the positioning block is set in the inner cavity, the insertion depth of the movable part into the inner cavity will be limited and determined. After the end of the movable part is limited by the positioning block, the inner wedge platform is just locked together with the movable wedge platform. At this time, when continuing to insert into the inner cavity, the positioning block will block the advancement, and when the movable part is pulled out, the inner wedge platform will block it again, so the movable part is also firmly fixed in the inner cavity, so that the entire rough The sleeve becomes a non-movable fixed body, which not only ensures the stability of its own structure, but also ensures the stability of the structure after being installed on the pull wire, which greatly prolongs the service life.

As a further improvement, the positioning block and the fixing part are provided with through holes facing the inner wall of the inner panel.

Since the positioning block and the through hole in the fixed part are set towards the inner wall of the inner plate, when a rod-like tool such as a screwdriver is used to push the inner wall of the inner plate through the through hole, the inner plate will be driven to swing outward. When the inner lock is released, it plays an unlocking role.

As an implementation, the clamping member includes two symmetrically arranged inner arc plates, the inner wall of the inner arc plate matches the outer wall of the pull wire, the two ends of the inner arc plate are fixedly connected with the outer arc plate through the extension part, and the extension part There is an extension hole on the top, and bolts for fastening the two inner arc plates to the stay wires are inserted in the extension holes.

The main structure of the clamping part includes an inner arc plate and a bolt, wherein the inner wall of the inner arc plate matches the shape of the outer wall of the pull wire. Therefore, when the bolt is inserted into the extension holes of the two corresponding extension parts and locked, the inner arc on both sides of the pull wire The arc plate will be locked on the pull wire under the locking force of the bolt, so that the inner arc plate and the pull wire are fixedly connected as an integral structure. This provides a support or force point for other components such as the outer arc plate fixed on the extension. Therefore, when the thick sleeve is fixed on the outer arc plate by fasteners, it is equivalent to fixing the thick sleeve on the inner arc plate, that is, it is fixed on the pull wire.

The clamping part includes an upper extension plate fixed above the inner arc plate. The inner wall of the upper extension plate is arc-shaped to match the pull wire. There are screw holes on the plate, and screws for locking the upper extension plate and the thin sleeve together are screwed in the screw holes.

The main structure of the clamping part includes the upper extension plate fixed above the inner arc plate and the limit platform set on the inner wall of the upper extension plate, wherein the inner wall of the upper extension plate is arc-shaped to match the pull wire, so that the pull wire can pass through and the limit platform provided on the inner wall of the upper extension plate mainly plays the role of limiting the lower end of the thin sleeve, placing the thin sleeve to slide under the action of gravity, thus ensuring that the thin sleeve must be arranged on the top of the thick sleeve. There are screw holes on the upper extension plate, and the upper extension plate and the lower part of the thin sleeve can be locked together by the screw passing through the screw hole, which can prevent the thin sleeve from jumping up and down when it is subjected to external forces such as wind, and ensures the structure Stability and service life.

As an improvement, an arc-shaped rubber pad is attached to the inner wall of the inner arc plate. Fitted lower arc plate.

After the arc-shaped rubber pad is installed on the inner wall of the inner arc plate, when the inner arc plate clamps the cable, the arc-shaped rubber pad can be squeezed into the gap between the cable wires, which can increase the friction between the inner arc plate and the cable, and greatly enhance The tightness of the two clamps. The upper and lower ends of the arc-shaped rubber pad are respectively provided with an upper arc plate that cooperates with the limit platform and a lower arc plate that is snap-fitted with the bottom of the inner arc plate, so that the arc-shaped rubber pad can be snapped on the inner wall of the inner arc plate without using Hand support, so it is more convenient to install.

The use process of this cable sheath is to first determine the installation position of the inner arc plate on the cable according to the length of the thick sleeve, and install the inner arc plate; then separate the movable part and the fixed part at one end of the thick sleeve along the gap, and pass Set the gap on the pull wire until the whole thick sleeve is set on the pull wire; then fit the upper end of the thick sleeve to the outer arc plate, and make the movable part and the fixed part reach the internal locking state, and lock the upper end of the thick sleeve with fasteners Tighten it to the outer arc plate; finally put the thin sleeve on the pull wire, insert it into the clamping part and fasten it with screws. The operation is very simple.

To sum up, the cable sheath is reasonable in structure, simple in installation and quick in operation, suitable for batch installation projects, stable and reliable after installation, and has a long service life.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is described in detail.

Fig. 1 is the schematic diagram of the structure of the cooperation between the clamping part and the arc-shaped rubber pad of the present invention;

Fig. 2 is a structural schematic diagram of the clamping part of the present invention;

Fig. 3 is a schematic structural view of the utility model in use;

Fig. 4 is the structural representation of the movable part of the utility model;

Fig. 5 is a schematic structural view of the outer locking state of the utility model;

Fig. 6 is a schematic diagram of the structure of the utility model in a locked state.

Detailed ways

As shown in the figure, the backguy sheath includes a thick sheath 2 set on the lower part of the backguy 1 and a thin sheath 3 set on the upper part of the backguy. The wall of the thick sleeve is provided with an axially extending slit 6 that divides the sleeve wall into a fixed part 4 and a movable part 5. The inner wall of the movable part is fixed with a narrower part near the end of the movable part and away from the end of the movable part. Part of the wider movable wedge platform 7 is fixed on the outer wall of the fixed part with a static wedge platform 8 that is narrower near the end of the fixed part and wider away from the end of the fixed part. The inner wall of the fixed part is fixed with an elastic inner plate 9 spaced apart from the fixed part. An inner cavity 10 capable of accommodating the movable part is arranged between the inner plate and the fixed part. The part is narrower away from the inner wedge platform 11 which is partly wider at the end of the inner plate. It also includes clamping parts 12 for clamping the stay wires from both sides of the stay wires. The two ends of the clamping parts are fixed with outer arc plates 13 which are supported and matched with the inner wall of the thick sleeve. The thick sleeve is fixed on the arc plate through a fastener 14, and the upper part of the clamping member is provided with a clamping part 15 that is clamped and matched with the lower end of the thin sleeve.

The pull wire sheath mainly includes a fixed part and a movable part which divide the thick sheath through a slit, and related structural components arranged on the fixed part and the movable part. The thick sleeve is generally made of plastic materials such as pvc, and has a certain tension or elasticity. Therefore, when the thick sleeve is divided by the axially extending gap, the movable part and the fixed part will be pressed together under the action of natural elastic force. The movable wedge platform is fixed on the inner wall of the movable part. The cross section of the movable wedge platform is wedge-shaped. The part close to the end of the movable part is narrower, and the part far away from the end of the movable part is wider. "Barbs". akin. A static wedge platform is fixed on the outer wall of the fixed part. The cross section of the static wedge platform is also wedge-shaped. The part close to the end of the fixed part is narrower, and the part far away from the end of the fixed part is wider. Form a "barb". When the movable part and the fixed part are squeezed by external force, and the movable wedge platform on the movable part slides to the static wedge platform on the fixed part, the movable part will gradually slide to the outside of the fixed part. When the wide end of the movable wedge table slides over the wide end of the static wedge table, since the thick sleeve has self-recovering elastic force, the dynamic wedge table and the static wedge table will be clamped together under this elastic force, that is, two "inverted wedge tables" Hook" to hang together. For convenience of description, this state is referred to as "outer locking" state.

An inner plate is fixed on the inner wall of the fixed part. The inner plate and the fixed part are arranged at intervals. An inner cavity is formed between the inner plate and the inner wall of the fixed part. The width of the inner cavity matches the width of the movable part. Therefore, under the action of external force, the The movable part is inserted into the lumen. For convenience of description, the inner cavity wall of the inner plate is called the inner wall, and the other side wall is called the outer wall. The end of the inner wall of the inner plate is fixed with an inner wedge. The cross section of the inner wedge is wedge-shaped. Form a "barb". When the movable part and the fixed part are squeezed by external force to make the movable part slide towards the inner cavity, the movable wedge platform on the movable part will slide along the inner wedge platform on the inner plate. At this time, due to the elasticity of the inner plate, the inner plate will Squeezed outward by the movable part. When the wide end of the movable wedge table slides over the wide end of the inner wedge table, since the inner plate has self-recovering elastic force, the movable wedge table and the inner wedge table will be clamped together under this elastic force, that is, two "inverted wedge tables" Hook" to hang together. For convenience of description, this state is referred to as "internal locking" state.

The internal locking state is mainly used during installation. After locking, the movable part and the fixed part are connected as a whole, and it is difficult to separate, so it has a certain anti-theft effect. The outer locking state is mainly used in the process of production, storage and transportation to prevent inner locking before installation.

The pull wire sheath also includes a clamping part, which consists of two parts and is used in pairs. When in use, the two parts are respectively placed on both sides of the stay wire and locked, so that the stay wire can be clamped, and the purpose of fixing the clamping part on the stay wire is realized. Both ends of the clamping part are fixed with outer arc plates, the outer wall of the outer arc plate is adapted to the shape of the inner wall of the thick sleeve, and the two are supported and matched together, and the thick sleeve is fixed on the arc plate by fasteners. The upper part of the clamping part is provided with a clamping part, and the main function of the clamping part is to clamp and fit together with the lower end of the thin sleeve, so as to play the role of fixing the thin sleeve.

A positioning block 16 is fixed on the inner wall of the inner cavity and is limitedly matched with the end of the movable part. After the positioning block is set in the inner cavity, the insertion depth of the movable part into the inner cavity will be limited and determined. After the end of the movable part is limited by the positioning block, the inner wedge platform is just locked together with the movable wedge platform. At this time, when continuing to insert into the inner cavity, the positioning block will block the advancement, and when the movable part is pulled out, the inner wedge platform will block it again, so the movable part is also firmly fixed in the inner cavity, so that the entire rough The sleeve becomes a non-movable fixed body, which not only ensures the stability of its own structure, but also ensures the stability of the structure after being installed on the pull wire, which greatly prolongs the service life.

The positioning block and the fixing part are provided with a through hole 17 facing the inner wall of the inner panel. Since the positioning block and the through hole in the fixed part are set towards the inner wall of the inner plate, when a rod-like tool such as a screwdriver is used to push the inner wall of the inner plate through the through hole, the inner plate will be driven to swing outward. When the inner lock is released, it plays an unlocking role.

In this embodiment, the clamping member includes two symmetrically arranged inner arc plates 18, the inner walls of the inner arc plates cooperate with the outer walls of the pull wires, and the two ends of the inner arc plates are fixedly connected to the outer arc plates through extensions 19. The extension part is provided with an extension hole 20, and a bolt 21 for fastening the two inner arc plates on the stay wire is inserted in the extension hole. The main structure of the clamping part includes an inner arc plate and a bolt, wherein the inner wall of the inner arc plate matches the shape of the outer wall of the pull wire. Therefore, when the bolt is inserted into the extension holes of the two corresponding extension parts and locked, the inner arc on both sides of the pull wire The arc plate will be locked on the pull wire under the locking force of the bolt, so that the inner arc plate and the pull wire are fixedly connected as an integral structure. This provides a support or force point for other components such as the outer arc plate fixed on the extension. Therefore, when the thick sleeve is fixed on the outer arc plate by fasteners, it is equivalent to fixing the thick sleeve on the inner arc plate, that is, it is fixed on the pull wire.

In the pull wire sheath, the clamping part includes an upper extension plate 22 fixed above the inner arc plate, the inner wall of the upper extension plate is arc-shaped to cooperate with the pull wire, and the inner wall of the upper extension plate is provided with a limit stop for the lower end of the thin sleeve. Cooperate with the spacer 23, the upper extension plate is provided with screw holes 24, and screwed in the screw holes are the screws 25 that lock the upper extension plate and the thin sleeve together. The main structure of the clamping part includes the upper extension plate fixed above the inner arc plate and the limit platform set on the inner wall of the upper extension plate, wherein the inner wall of the upper extension plate is arc-shaped to match the pull wire, so that the pull wire can pass through and the limit platform provided on the inner wall of the upper extension plate mainly plays the role of limiting the lower end of the thin sleeve, placing the thin sleeve to slide under the action of gravity, thus ensuring that the thin sleeve must be arranged on the top of the thick sleeve. There are screw holes on the upper extension plate, and the upper extension plate and the lower part of the thin sleeve can be locked together by the screw passing through the screw hole, which can prevent the thin sleeve from jumping up and down when it is subjected to external forces such as wind, and ensures the structure Stability and service life.

In this embodiment, an arc-shaped rubber pad 26 is attached to the inner wall of the inner arc-shaped plate. The lower arc plate 28 that snap fits on the bottom of the inner arc plate. After the arc-shaped rubber pad is installed on the inner wall of the inner arc plate, when the inner arc plate clamps the cable, the arc-shaped rubber pad can be squeezed into the gap between the cable wires, which can increase the friction between the inner arc plate and the cable, and greatly enhance The tightness of the two clamps. The upper and lower ends of the arc-shaped rubber pad are respectively provided with an upper arc plate that cooperates with the limit platform and a lower arc plate that is snap-fitted with the bottom of the inner arc plate, so that the arc-shaped rubber pad can be snapped on the inner wall of the inner arc plate without using Hand support, so it is more convenient to install.

The use process of this cable sheath is to first determine the installation position of the inner arc plate on the cable according to the length of the thick sleeve, and install the inner arc plate; then separate the movable part and the fixed part at one end of the thick sleeve along the gap, and pass Set the gap on the pull wire until the whole thick sleeve is set on the pull wire; then fit the upper end of the thick sleeve to the outer arc plate, and make the movable part and the fixed part reach the internal locking state, and lock the upper end of the thick sleeve with fasteners Tighten it to the outer arc plate; finally put the thin sleeve on the pull wire, insert it into the clamping part and fasten it with screws. The operation is very simple.

Claims (6)

1. a bracing wire sheath, comprise the thick cover (2) being sleeved on bracing wire (1) hypomere and the thin cover (3) being sleeved on bracing wire (1) epimere, it is characterized in that: the jacket wall of thick cover (2) is provided with the gap (6) extended vertically that jacket wall is divided into fixed part (4) and movable part (5) by, movable part (5) inwall is installed with near the narrower dynamic wedge (7) wider away from movable part (5) end sections of movable part (5) end sections, fixed part (4) outer wall is installed with near the narrower quiet wedge (8) wider away from fixed part (4) end sections of fixed part (4) end sections, fixed part (4) inwall is installed with and spaced with fixed part (4) there is flexible inner panel (9), the inner chamber (10) that can hold movable part (5) is provided with between inner panel (9) and fixed part (4), inner panel (9) inwall is installed with near the narrower interior wedge (11) wider away from inner panel (9) end sections of inner panel (9) end sections, also comprise the Fastener (12) from bracing wire (1) both sides clamping bracing wire (1), Fastener (12) two ends are installed with and slightly overlap (2) inwall and support the outer arc plate (13) coordinated, thick cover (2) is fixed on outer arc plate (13) by securing member (14), Fastener (12) top is provided with and the card-tight part (15) carefully overlapping (3) lower end snap-fit.

2. bracing wire sheath as claimed in claim 1, is characterized in that: inner chamber (10) inwall is installed with the locating piece (16) that coordinate spacing with movable part (5) end.

3. bracing wire sheath as claimed in claim 2, is characterized in that: be provided with towards the through hole of inner panel inwall (17) in described locating piece (16) and fixed part (4).

4. the bracing wire sheath as described in claim as arbitrary in claim 1-3, it is characterized in that: described Fastener (12) comprises two symmetrically arranged inner arc plates (18), inner arc plate (18) inwall matches with bracing wire (1) outer wall, inner arc plate (18) two ends are fixed together by extension (19) and outer arc plate (13), extension (19) is provided with elongated hole (20), is fitted with the bolt (21) two inner arc plates (18) be fastened in bracing wire (1) in elongated hole (20).

5. bracing wire sheath as claimed in claim 4, it is characterized in that: described card-tight part (15) comprise be installed in inner arc plate (18) top upper extending plate (22), upper extending plate (22) inwall is in the arc coordinated with bracing wire (1), upper extending plate (22) inwall is provided with and carefully overlaps the spacing limiting stand (23) coordinated in (3) lower end, upper extending plate (22) is provided with screw (24), tightens the screw (25) upper extending plate (22) and thin cover (3) are locked together in screw (24).

6. bracing wire sheath as claimed in claim 5, it is characterized in that: inner arc plate (18) inwall has been adjacent to arc rubber cushion (26), arc rubber cushion (26) upper end is installed with the upper curved plate (27) with limiting stand (23) snap fit, and arc rubber cushion (26) lower end is installed with the lower curved plate (28) with inner arc plate (18) bottom snap fit.