Split type hoop for high-voltage cable through-pipe laying
By designing a split hoop for high-voltage cable pipe lamination with removable rolling part and locking assembly, the problems of friction damage and lack of universality in cable pipe penetration are solved, and the adaptation and construction of pipes of different pipe diameters are achieved. Improved efficiency.
Patent Information
- Application Number
- CN202420422991.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-04
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-03-04
AI Technical Summary
In the existing cable pipe laying methods, the direct contact between the cable and the inner wall of the pipe leads to sliding friction, which easily causes scratches and mechanical damage to the outer wall of the cable. The existing clamps are not versatile for different pipe diameters, and the installation process is cumbersome.
A split hoop for high-voltage cable pipe lamination is designed, including a hoop body and a pallet. The pallet is equipped with a removable rolling part and a locking component, which can be set and adjusted according to the diameter of the pipe to ensure that the hoop body is in different pipes. Stability and support in diameter pipes.
The adaptation of pipes of different pipe diameters is achieved, the friction and damage of cables during the pipe penetration process is reduced, the installation process is simplified, and the construction efficiency and versatility are improved.
Smart Images
Figure CN222191705U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of electric power construction equipment and facilities, and specifically relates to a split clamp for high-voltage cable pipe laying. Background Art
[0002] As cities expand, their demand for electricity continues to grow. The coordination between urban planning and power grid planning is becoming increasingly important. Among them, pipe laying is one of the commonly used methods in power grid planning. In the process of laying cables through pipes, the conventional method is to directly insert the cable into the pipe. The cable directly contacts the inner wall of the pipe and generates sliding friction. The magnitude of this friction is proportional to the weight of the cable. During laying, it is easy to cause scratches on the outer wall of the cable, affecting the service life of the cable. If the cable is too heavy and the cable itself has limited tensile strength, it may even cause relatively serious mechanical damage to the cable.
[0003] In response to this problem, there is a cable laying clamp in the related prior art. The clamp is installed on the cable. The clamp includes a plurality of assembling clamps, which are assembled and fixed into a ring. The rolling body on the clamp is in rolling contact with the inner wall of the pipeline, so that the cable can be easily laid in the pipeline with a smaller internal space. At the same time, the laying resistance is reduced to prevent the cable from being pulled. However, this clamp is composed of multiple clamps, and the installation process is relatively cumbersome and time-consuming when laying the cable. There is also a pipeline cable clamp and a pipeline cable laying assembly in the related prior art. The clamp includes a clamp body and at least two supporting bodies, wherein the clamp body has a notch that can be adapted and connected with the outer wall of the cable, and the supporting body includes a support frame and a roller. When the cable is subjected to traction to be inserted into the pipeline, each roller forms a rolling connection with the inner wall of the pipeline, which can achieve the purpose of reducing the traction resistance and preventing the outer wall of the cable from being damaged. However, this clamp does not have a large clamping force on the cable. Moreover, the roller on the clamp is a directional roller, and rolling friction occurs only when it moves along the direction of the pipe opening. Once it encounters resistance in the tangential direction of the pipe inner diameter, sliding friction will occur between the roller and the pipe wall, and relative sliding may occur between the clamp and the cable, causing damage to the cable. In addition, the pipes to be laid have different diameters, and the structure in the prior art is not universal in the laying of pipes with different diameters. Utility Model Content
[0004] The utility model aims to solve at least one of the above-mentioned technical problems existing in the prior art. To this end, the utility model provides a split clamp for high-voltage cable pipe laying, which can be adapted to pipe laying of different pipe diameters and improve versatility.
[0005] According to the embodiment of the utility model, the split clamp for high-voltage cable pipe laying includes a clamp body and a tray. The clamp body is used for detachably connecting the cable; the tray is detachably connected to the bottom of the clamp body, and the bottom of the tray is provided with a plurality of rolling parts.
[0006] According to the split clamp for high-voltage cable pipe laying according to the embodiment of the utility model, there are at least the following beneficial effects: the rolling part on the tray of the split clamp for high-voltage cable pipe laying of the utility model can be set according to the diameter of the pipe, so as to support the movement of the clamp body of the connecting cable in the laying pipe. When the diameter of the applied pipe changes, the tray can be replaced according to the current pipe diameter, so as to ensure the stability of the tray in the current laying pipe, and then ensure the stability of the cable support. Therefore, the utility model can adapt to the laying of pipes with different pipe diameters, and improve the versatility.
[0007] According to some embodiments of the utility model, at least one of the tray and the hoop body is provided with a lock assembly, the lock assembly is rotatably provided with a lock plate, and the other is provided with a keyhole for the lock plate to pass through;
[0008] The split clamp for high-voltage cable pipe laying is configured as follows: the tray is detachably connected to the clamp body by passing the locking plate through the keyhole and rotating it at a set angle.
[0009] According to some embodiments of the utility model, the lock assembly is also rotatably provided with an adjusting plate, and the adjusting plate is connected to the locking plate in a fixed angle manner or transmission connected to the locking plate, and is used to drive the locking plate to rotate during the rotation process.
[0010] According to some embodiments of the utility model, the locking assembly is arranged on the tray, and the locking assembly is also provided with a rotating shaft, the rotating shaft passes through the tray, the upper end of the rotating shaft extends to the top of the tray, and the lower end of the rotating shaft extends to the bottom of the tray, the locking plate is connected to the upper end of the rotating shaft, and the adjusting plate is connected to the lower end of the rotating shaft.
[0011] According to some embodiments of the present utility model, the locking assembly is further provided with a limiting portion, and the limiting portion is located in the rotation path of the adjusting plate and is used to limit the rotation angle range of the adjusting plate.
[0012] According to some embodiments of the utility model, a mounting hole is provided on the tray, and the locking assembly includes a mounting seat, a rotating shaft and an elastic member, the mounting seat is connected to the tray and at least partially fitted into the mounting hole, the lower end of the mounting seat is provided with a circular ring portion coaxially with the mounting hole, the lower end of the side wall of the circular ring portion is provided with a notch, the rotating shaft is coaxially distributed with the mounting hole and penetrates the mounting seat, the upper end of the rotating shaft is located above the tray, the lower end of the rotating shaft passes through the circular ring portion, the locking plate is connected to the upper end of the rotating shaft, the adjusting plate is connected to the lower end of the rotating shaft and passes through the notch laterally, and the elastic member is arranged between the adjusting plate and the mounting seat or between the rotating shaft and the mounting seat.
[0013] According to some embodiments of the present invention, the rolling portion comprises a bull's eye bearing.
[0014] According to some embodiments of the present invention, the tray is provided with a plurality of groups of the rolling parts along the width direction, and each group of the rolling parts includes a plurality of the rolling parts.
[0015] According to some embodiments of the utility model, the hoop body includes a first arm, a second arm and a bolt assembly, one end of the first arm and the second arm are hinged, and the bolt assembly is arranged between the other ends of the first arm and the second arm.
[0016] According to some embodiments of the utility model, the hoop body is provided with a positioning hole, and the tray is provided with a positioning pin inserted into the positioning hole; and / or, the tray is provided with a positioning hole, and the hoop body is provided with a positioning pin inserted into the positioning hole.
[0017] Additional aspects and advantages of the present invention will be partially given in the following description, and some of the additional aspects and advantages will become apparent from the following description, or will be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:
[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0020] Figure 2 This is a schematic diagram of an axial side structure of the utility model;
[0021] Figure 3 It is a structural decomposition schematic diagram of the utility model;
[0022] Figure 4 A schematic diagram of the structure of the tray in the utility model;
[0023] Figure 5 This is a connection diagram of the clamp in the utility model;
[0024] Figure 6 is a cross-sectional view of a lock assembly;
[0025] Figure 7 It is a schematic diagram of the overall structure of the lock assembly;
[0026] Figure 8 This is a working schematic diagram of the utility model. DETAILED DESCRIPTION
[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
[0028] In the description of the present invention, it should be understood that the descriptions involving orientation, such as the orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0029] In the description of the present utility model, "a plurality" means more than two. If there is a description of "first" or "second", it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.
[0030] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.
[0031] As cities expand, their demand for electricity continues to grow. The coordination between urban planning and power grid planning is becoming increasingly important. Among them, pipe laying is one of the commonly used methods in power grid planning. In the process of laying cables through pipes, the conventional method is to directly insert the cable into the pipe. The cable directly contacts the inner wall of the pipe and generates sliding friction. The magnitude of this friction is proportional to the weight of the cable. During laying, it is easy to cause scratches on the outer wall of the cable, affecting the service life of the cable. If the cable is too heavy and the cable itself has limited tensile strength, it may even cause relatively serious mechanical damage to the cable.
[0032] In response to this problem, there is a cable laying clamp in the related prior art. The clamp is installed on the cable. The clamp includes a plurality of assembling clamps, which are assembled and fixed into a ring. The rolling body on the clamp is in rolling contact with the inner wall of the pipeline, so that the cable can be easily laid in the pipeline with a smaller internal space. At the same time, the laying resistance is reduced to prevent the cable from being pulled. However, this clamp is composed of multiple clamps, and the installation process is relatively cumbersome and time-consuming when laying the cable. There is also a pipeline cable clamp and a pipeline cable laying assembly in the related prior art. The clamp includes a clamp body and at least two supporting bodies, wherein the clamp body has a notch that can be adapted and connected with the outer wall of the cable, and the supporting body includes a support frame and a roller. When the cable is subjected to traction to be inserted into the pipeline, each roller forms a rolling connection with the inner wall of the pipeline, which can achieve the purpose of reducing the traction resistance and preventing the outer wall of the cable from being damaged. However, this clamp does not have a large clamping force on the cable. Moreover, the roller on the clamp is a directional roller, and rolling friction occurs only when it moves along the direction of the pipe opening. Once it encounters resistance in the tangential direction of the pipe inner diameter, sliding friction will occur between the roller and the pipe wall, and relative sliding may occur between the clamp and the cable, causing damage to the cable. In addition, the pipes to be laid have different diameters, and the structure in the prior art is not universal in the laying of pipes with different diameters.
[0033] To this end, the utility model provides a split clamp for high-voltage cable pipe laying, which can adapt to the laying of pipes with different diameters and improve versatility.
[0034] Reference Figures 1 to 8 As shown, a split clamp for high-voltage cable pipe laying of an embodiment of the utility model includes a clamp body 100 and a tray 200, wherein the clamp body 100 is used for detachably connecting the cable; the tray 200 is detachably connected to the bottom of the clamp body 100, and a plurality of rolling parts 201 are provided at the bottom of the tray 200. Among them, the clamp body 100 can adopt a semicircular ring structure or an embracing structure, and the cable is connected by clamping and fixing the circumference of the cable. The rolling part 201 on the tray 200 can be set according to the diameter of the pipeline, so as to support the movement of the clamp body 100 connected to the cable in the laying pipeline. When the diameter of the applied pipeline changes, the tray 200 can be replaced according to the current pipeline diameter, so as to ensure the stability of the tray 200 in the current laying pipeline, and then ensure the stability of the cable support. Therefore, the utility model can adapt to the laying of pipelines with different diameters and improve the versatility.
[0035] Reference Figure 2 , Figures 3 to 7In some embodiments of the utility model, a locking assembly 300 is provided on the tray 200, and a locking piece 303 is rotatably provided on the upper end of the locking assembly 300. A keyhole 108 for the locking piece 303 to pass through is correspondingly provided on the hoop body 100. The tray 200 is detachably connected to the hoop body 100 by the locking piece 303 passing through the keyhole 108 and rotating a set angle. The principle of the detachable connection in this embodiment is that the locking piece 303 will be misaligned with the keyhole 108 after rotating a set angle, so that it cannot be disengaged from the keyhole 108, thereby realizing the clamping. It should be noted that a plurality of locking assemblies 300 and corresponding keyholes 108 can be provided between the tray 200 and the hoop body 100, and the position of the locking assembly 300 is not limited to the tray 200, but can also be provided on the hoop body 100. Similarly, the keyhole 108 is not limited to being provided on the hoop body 100, but can also be provided on the tray 200.
[0036] Reference Figure 6 , Figure 7 In some embodiments of the utility model, the lock assembly 300 is also rotatably provided with an adjustment piece 306, and the adjustment piece 306 is connected to the lock piece 303 in a fixed angle manner, and is used to drive the lock piece 303 to rotate during the rotation process. Since the lock piece 303 needs to cooperate with the keyhole 108 to achieve the snap connection, it is not convenient to directly contact the lock piece 303 for rotation control in practical applications. This embodiment controls the rotation of the lock piece 303 by setting the adjustment piece 306, which can improve the convenience of operation. It connects the lock piece 303 in a fixed angle manner, that is, when the adjustment piece 306 rotates, the lock piece 303 rotates, and the operation is simple and reliable. Specifically, there are many angle-fixed connection methods, and those skilled in the art can flexibly set them according to needs.
[0037] In some embodiments of the present invention, the adjusting piece 306 is connected to the locking piece 303 in a transmission manner to control the rotation of the locking piece 303. By adopting the transmission connection method, on the basis of being able to realize the rotation control of the locking piece 303, other functions can be further configured, such as rotation amplification and reduction. For example, a gear set is set between the adjusting piece 306 and the locking piece 303, and the transmission ratio of the gear set is used to make the angle of rotation of the locking piece 303 greater or less than the rotation angle of the adjusting piece 306 after the adjusting piece 306 rotates an angle, so as to meet the possible needs.
[0038] Reference Figures 3 to 7In some embodiments of the utility model, the locking assembly 300 is arranged on the tray 200, and specifically includes a rotating shaft 305, a locking piece 303 and an adjusting piece 306. The rotating shaft 305 is penetrated on the tray 200, so that it can rotate relative to the tray 200. The upper end of the rotating shaft 305 extends to the top of the tray 200, and the lower end of the rotating shaft 305 extends to the bottom of the tray 200. The locking piece 303 is connected to the upper end of the rotating shaft 305, and the adjusting piece 306 is connected to the lower end of the rotating shaft 305. Since the upper end of the tray 200 is connected to and supports the hoop body 100, the adjusting piece 306 is arranged below the tray 200, which is convenient for operation, will not affect the connection of the hoop body 100, and will not form a protrusion that may scratch the cable.
[0039] It is understandable that when the locking piece 303 adopts a rotating body structure, such as a circular plate, it should be eccentrically arranged with respect to the rotating shaft 305, so that when the rotating shaft 305 rotates, it moves toward one side and is misaligned with the keyhole 108 for engagement. In the case of adopting other structures, it can be coaxially arranged with the rotating shaft 305. For example, when the locking piece 303 is arranged in a long strip structure, the keyhole 108 is also a long strip hole. When the rotating shaft 305 rotates, the locking piece 303 will rotate accordingly and be misaligned with the keyhole 108, and cannot be disengaged from the keyhole 108, so as to achieve engagement.
[0040] In some embodiments of the present invention, the lock assembly 300 is further provided with a limiting portion, which is located in the rotation path of the adjustment piece 306 and is used to limit the rotation angle range of the adjustment piece 306. Figures 4 to 6Specifically, a mounting hole is provided on the tray 200, and the mounting hole passes through the tray 200. The locking assembly 300 includes a mounting seat 301, a rotating shaft 305 and an elastic member 304. The upper end of the mounting seat 301 is fitted into the mounting hole, and a mounting plate is provided to fit the lower end surface of the tray 200. The four vertex positions of the mounting plate are connected to the tray 200 by screws. The lower end of the mounting seat 301 is coaxially provided with a circular ring portion 302 with the mounting hole, and a notch is provided at the lower end of the side wall of the circular ring portion 302. The rotating shaft 305 is coaxially distributed with the mounting hole and penetrates the mounting seat 301, and the upper end of the rotating shaft 305 extends to the top of the tray 200, and the lower end of the rotating shaft 305 extends into the circular ring portion 302. The locking piece 303 is fixedly connected to the upper end of the rotating shaft 305. The adjusting piece 306 is fixedly connected to the lower end of the rotating shaft 305, and the adjusting piece 306 extends through the notch along the radial direction of the rotating shaft 305. The elastic member 304 is arranged between the adjusting piece 306 and the mounting seat 301. With the structural setting of this embodiment, the adjusting piece 306 can only rotate within the central angle range corresponding to the notch, so as to limit the rotation range of the adjusting piece 306, and then limit the rotation angle of the locking piece 303, so as to avoid the difficulty of adjusting the locking piece 303 to align with the keyhole 108 when the worker controls the locking or unlocking, thereby improving the convenience of operation. The central angle corresponding to the notch is preferably set to 90°. The locking assembly 300 is installed on the pallet 200 through the mounting seat 301. Since the pallet 200 may need to be frequently disassembled and replaced, it is convenient to replace the locking assembly 300 separately in the case of wear and tear, which can reduce the cost of use. Through the setting of the elastic member 304, a pre-tightening force can be applied to the adjusting piece 306 and the rotating shaft 305, so as to avoid the locking assembly 300 from being automatically unlocked during the movement. The elastic member 304 may be further used to exert a downward force on the locking piece 303, thereby driving the locking piece 303 to press the tray 200 along the axial direction of the rotating shaft 305 to eliminate the gap. The elastic member 304 may also be arranged between the rotating shaft 305 and the mounting seat 301. The elastic member 304 may be a spring or other structures having the same function.
[0041] In some embodiments of the present invention, the rolling part 201 is configured as a bull's eye bearing. Based on the 360° rotatable property of the bull's eye bearing, the tray 200 can move axially or radially during the process of laying the cable through the pipe, thereby avoiding wear between the hoop body 100 and the cable.
[0042] In some embodiments of the utility model, the tray 200 is provided with multiple groups of rolling parts 201 along the width direction, and each group of rolling parts 201 includes multiple rolling parts 201. It can be understood that the width direction of the tray 200 is the length direction of the cable. By providing multiple groups of rolling parts 201, it is beneficial to improve the stability of the support, and the number of groups of rolling parts 201 on the tray 200 can be flexibly set according to the supported weight of the cable. Each group of rolling parts 201 is provided with multiple rolling parts 201, that is, each group of rolling parts 201 is provided with multiple rolling parts 201 along the circumferential direction, which can improve the stability of the support, wherein the more rolling parts 201 are provided in each group of rolling parts 201, the greater the radial force strength of the tray 200 along the cable.
[0043] In some embodiments of the present invention, the hoop body 100 includes a first arm 102, a second arm 101 and a bolt assembly, one end of the first arm 102 and the second arm 101 are hinged, and the bolt assembly is arranged between the other ends of the first arm 102 and the second arm 101. The bolt assembly can be used to control the first arm 102 and the second arm 101 to clamp the cable, thereby increasing the clamping force and avoiding sliding damage between the hoop body 100 and the cable. In addition, the solution of two arms for clamping and one bolt assembly for installation has a simple structure and high disassembly and assembly efficiency.
[0044] In some embodiments of the present invention, the lower end of the hoop body 100 is provided with a positioning hole 106, and the upper end of the tray 200 is provided with a positioning pin 202 inserted into the positioning hole 106. The positioning hole 106 and the positioning pin 202 are used to perform positioning first, which can improve the installation efficiency of the lock assembly 300. In addition, the positioning hole 106 can also be provided on the tray 200, and the positioning pin 202 can be provided on the hoop body 100.
[0045] In some embodiments of the utility model, a semi-conductive rubber pad 105 is provided on the inner side of the first arm 102 and the second arm 101. The semi-conductive rubber pad 105 is used to wrap the cable, which can not only avoid damage to the outer wall of the cable, but also eliminate the potential difference on the surface of the cable after the cable is energized, thereby ensuring the safety of the cable operation.
[0046] Reference Figures 1 to 8In some embodiments of the utility model, the split clamp for high-voltage cable pipe laying includes a clamp body 100 and a tray 200. The clamp body 100 includes a first clamp arm 102 and a second clamp arm 101. The left ends of the first clamp arm 102 and the second clamp arm 101 are hinged together. The right end of the first clamp arm 102 is hinged with a live bolt 103, and a nut 104 is installed on the live bolt 103. The right end of the second clamp arm 101 is provided with an open slot for the live bolt 103 to pass through. The first clamp arm 102 and the second clamp arm 101 are both arc-shaped structures. Two keyholes 108 are provided at the lower end of the first clamp arm 102, and positioning holes 106 are provided on the outside of the two keyholes 108. Semi-conductive rubber pads 105 are provided on the inner sides of the first clamp arm 102 and the second clamp arm 101, and the semi-conductive rubber pad 105 on the first clamp arm 102 is provided with a clearance hole 107 at the position corresponding to the keyhole 108. The tray 200 is divided into a first support portion 203, a second support portion 204 and a third support portion 205 along the width direction. The three support portions are arranged in an arc structure along the length direction. A bull's eye bearing is respectively arranged at the middle position and the two end positions of the lower ends of the three support portions, and the lower ends of the nine bull's eye bearings are located on a circumferential surface. The upper end arc surfaces of the first support portion 203 and the third support portion 205 are kept flush, while the upper end arc surface of the second support portion 204 is concave relative to the upper end arc surfaces of the first support portion 203 and the third support portion 205, and the width of the second support portion 204 is consistent with the width of the first arm 102, so that the hoop body 100 is embedded between the first support portion 203 and the third support portion 205. A positioning pin 202 is arranged at the upper end of the second support portion 204 to be inserted into two positioning holes 106 on the first arm 102. Two lock components 300 are installed on the second support portion 204 corresponding to the two lock holes 108. The lock assembly 300 includes a mounting seat 301, a rotating shaft 305, an adjusting piece 306, a locking piece 303 and an elastic member 304, wherein two mounting holes are provided on the second support portion 204, and the mounting seat 301 is correspondingly installed in the mounting holes. The rotating shaft 305 is provided on the mounting seat 301, and the upper end of the rotating shaft 305 extends upward to the upper part of the second support portion 204, and the lower end extends downward to the lower part of the second support portion 204. The shape of the locking piece 303 is adapted to the keyhole 108, and is fixedly provided at the upper end of the rotating shaft 305. The adjusting piece 306 is provided at the lower end of the rotating shaft 305. The elastic member 304 abuts between the adjusting piece 306 and the mounting seat 301. At the same time, the mounting seat 301 is provided with a circular ring portion 302 on the circumferential side of the lower end of the rotating shaft 305, and the circular ring portion 302 is provided with a notch with a central angle of 90°, and the adjusting piece 306 is located in the notch. The locking piece 303 passes through the lock hole 108 and is clamped in the first arm 102 in the clearance hole 107. The adjusting piece 306 is located in the space between the bull's eye bearing and the lower end surface of the second support portion 204 to avoid affecting the rolling of the bull's eye bearing.
[0047] The first support part 203, the second support part 204 and the third support part 205 can be connected as an integral structure or a split connection structure, and are not limited to three support parts.
[0048] It can be understood that the utility model has the following advantages:
[0049] 1. The installation steps of the hoop body 100 are simple and easy to operate;
[0050] 2. With the bull's eye bearing as the support point, the spherical structure inside can rotate 360°, with low resistance and good flexibility when laying pipes;
[0051] 3. The use of multiple rows of bull's eye bearings in arc shape can reduce the force per unit area of the pipeline and ensure the stability of the cable laying process;
[0052] 4. The hoop body 100 and the tray 200 can be quickly assembled and disassembled, and the bottom tray 200 can be selected according to the specific pipe diameter, which can effectively reduce the product development cost;
[0053] 5. The positioning hole 106 of the first arm 102 and the positioning pin 202 on the tray 200 cooperate to achieve fast and accurate installation;
[0054] 6. The lock assembly 300 is designed with a 90° limit notch, which allows installers to quickly identify the installation status and avoid manual misoperation;
[0055] 7. Using semi-conductive rubber to wrap the cable can not only avoid damage to the outer wall of the cable, but also eliminate the potential difference on the surface of the cable after the cable is energized, thereby ensuring the safety of cable operation.
[0056] Therefore, the split clamp for high-voltage cable pipe laying of the utility model can isolate the direct contact between the outer wall of the cable and the inner wall of the pipe, and there will be no relative sliding between the clamp and the cable, thereby avoiding cable wear and reducing laying resistance, thus avoiding the cable from being pulled apart. At the same time, it can be installed quickly, ensuring the efficiency of cable laying construction.
[0057] The present invention is described in detail above in conjunction with the embodiments, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.
Claims
1. A split clamp for laying high-voltage cables through pipes. It is characterized in that include: A ferrule body for a detachable connecting cable; A tray is detachably connected to the bottom of the hoop body, and a plurality of rolling parts are provided on the bottom of the tray; At least one of the tray and the hoop body is provided with a locking assembly, the locking assembly is rotatably provided with a locking plate, and the other is provided with a keyhole for the locking plate to pass through; The split clamp for high-voltage cable pipe laying is configured as follows: the tray is detachably connected to the clamp body by passing the locking plate through the keyhole and rotating it at a set angle.
2. The split clamp for high-voltage cable pipe laying according to claim 1, It is characterized in that The lock catch assembly is also rotatably provided with an adjusting plate, which is connected to the lock plate in a manner of a fixed angle or transmission connection to the lock plate, and is used to drive the lock plate to rotate during the rotation process.
3. The split clamp for high-voltage cable pipe laying according to claim 2, It is characterized in that The locking assembly is arranged on the tray, and the locking assembly is also provided with a rotating shaft, the rotating shaft passes through the tray, the upper end of the rotating shaft extends to the top of the tray, and the lower end of the rotating shaft extends to the bottom of the tray, the locking plate is connected to the upper end of the rotating shaft, and the adjusting plate is connected to the lower end of the rotating shaft.
4. The split clamp for high-voltage cable pipe laying according to claim 2, It is characterized in that The locking assembly is also provided with a limiting portion, which is located in the rotation path of the adjusting piece and is used to limit the rotation angle range of the adjusting piece.
5. The split clamp for high-voltage cable pipe laying according to claim 2, It is characterized in that The tray is provided with a mounting hole, and the locking assembly includes a mounting seat, a rotating shaft and an elastic member. The mounting seat is connected to the tray and at least partially fitted into the mounting hole. The lower end of the mounting seat is provided with a circular ring portion coaxially with the mounting hole, and the lower end of the side wall of the circular ring portion is provided with a notch. The rotating shaft is coaxially distributed with the mounting hole and penetrates the mounting seat. The upper end of the rotating shaft is located above the tray, and the lower end of the rotating shaft passes through the circular ring portion. The locking plate is connected to the upper end of the rotating shaft, and the adjusting plate is connected to the lower end of the rotating shaft and passes through the notch laterally. The elastic member is arranged between the adjusting plate and the mounting seat or between the rotating shaft and the mounting seat.
6. The split clamp for high-voltage cable pipe laying according to claim 1, It is characterized in that The rolling portion includes a bull's eye bearing.
7. The split clamp for high-voltage cable pipe laying according to claim 1, It is characterized in that The tray is provided with a plurality of groups of the rolling parts along the width direction, and each group of the rolling parts includes a plurality of the rolling parts.
8. The split clamp for high-voltage cable pipe laying according to claim 1, It is characterized in that The hoop body comprises a first arm, a second arm and a bolt assembly, one end of the first arm and the second arm are hinged, and the bolt assembly is arranged between the other ends of the first arm and the second arm.
9. The split clamp for high-voltage cable pipe laying according to claim 1, It is characterized in that The hoop body is provided with a positioning hole, and the tray is provided with a positioning pin inserted into the positioning hole; and / or, the tray is provided with a positioning hole, and the hoop body is provided with a positioning pin inserted into the positioning hole.