10KV cable terminal fixing device

Abstract

The utility model discloses a 10KV cable terminal fixing device, and relates to the technical field of power cable connection, and the device comprises a lead screw transmission mechanism, an arc-shaped open mechanism, a pipe clamp screw thread fixing mechanism and a ratchet wrench. The arc open type mechanism comprises two arc open type plates, the lead screw transmission mechanism comprises a lead screw and two nut bases, the two nut bases are arranged on the lead screw in a sliding mode, the ratchet wrench is fixedly connected with the lead screw and arranged between the two nut bases, and the arc open type plates are connected with the corresponding nut bases. The pipe clamp screw thread fixing mechanism comprises two sets of pipe clamp screw thread fixing assemblies, each set of pipe clamp screw thread fixing assembly corresponds to the corresponding nut base in a one-to-one mode, each set of pipe clamp screw thread fixing assembly comprises at least two screw thread clamps, and the two screw thread clamps are connected with the two ends of the corresponding nut base respectively. According to the invention, defects in manual shaping and terminal head installation processes can be overcome, the working intensity of workers is reduced, the working time is shortened, and the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power cable connection, in particular to a 10KV cable terminal fixing device. BACKGROUND

[0002] In the process of 10kV cable access to the power distribution cabinet of the transformer substation, the installation of the cable indoor terminal head (hereinafter referred to as "terminal head") is an important link in the cable access construction. In the related art, in order to ensure that the terminal head double-hole clamp is aligned with the opening position of the copper plate end in the interval between the power distribution cabinet, it is necessary to shape the A / C sides of the terminal head. Due to the narrow interval of the power distribution room, the thick cable core, the rebound deformation after shaping, the influence of the monitoring equipment on the movement of the terminal head, and other factors, the terminal head shaping is difficult and difficult to shape, and needs to be adjusted many times, which finally leads to a high proportion of time for terminal head installation. CONTENT OF THE UTILITY MODEL

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application provides a 10KV cable terminal fixing device which can replace manual shaping and the drawbacks in the terminal head installation process, reduce the working intensity of workers, shorten the operation time and improve the operation efficiency.

[0004] The present application provides a 10KV cable terminal fixing device, which comprises a lead screw transmission mechanism, an arc open type mechanism, a pipe clamp screw fixing mechanism and a ratchet wrench.

[0005] The arc open type mechanism comprises two arc open type plate members, the lead screw transmission mechanism comprises a lead screw and two nut seats, the two nut seats are slidably arranged on the lead screw, the ratchet wrench is fixedly connected with the lead screw, and the ratchet wrench is arranged between the two nut seats, the arc open type plate member corresponds to the nut seat, the arc open type plate member is connected with the corresponding nut seat, the pipe clamp screw fixing mechanism comprises two groups of pipe clamp screw fixing assemblies, each group of pipe clamp screw fixing assemblies corresponds to the nut seat, each group of pipe clamp screw fixing assemblies comprises at least two screw clamps, the two screw clamps are respectively connected with the two ends of the corresponding nut seat, and the two screw clamps are arranged adjacent to the arc open type plate member, and the screw clamp is used for fixing the cable A / C phase connection terminal crimping pipe.

[0006] According to some embodiments of the present application, the 10KV cable terminal fixing device further comprises an operating rod, and the operating rod is connected with one end of the ratchet wrench away from the lead screw.

[0007] According to some embodiments of the present application, the arc open type plate member is made of cast iron.

[0008] According to some embodiments of the present application, the material of the thread clamping bracket is stainless steel.

[0009] According to some embodiments of the present application, the thread of the lead screw is a T-shaped coarse thread.

[0010] According to some embodiments of the present application, each thread clamping bracket comprises a fastener and two semicircular steels, one end of the two semicircular steels is movably connected, and the other end of the two semicircular steels is connected by the fastener.

[0011] According to some embodiments of the present application, the fastener comprises a bolt and a nut, one end of the two semicircular steels near the fastener is protrudingly provided with a steel plate, the two steel plates are oppositely arranged, each steel plate is provided with a through hole corresponding to the bolt, the bolt is sequentially provided in the two steel plates through the two through holes, and the nut is threadedly connected with the bolt.

[0012] In the present application, the lead screw is simultaneously stressed by rotating the ratchet handle, and then the two nut seats are reversely stressed to produce relative displacement. The thread clamping bracket is used for fixing the cable A / C phase terminal crimping pipe, the arc-shaped open plate is used for shaping the cable head A / C phase without damaging the cable A / C phase insulation, and the pipe clamping thread fixing assembly can ensure that the fixed object does not loosen and displace during stress. As a terminal head adjuster, the device can one-time realize cable head A / C phase shaping and ensure that no deformation occurs during movement, and the multiple cable head A / C phase adjustment links can be omitted, thereby shortening the operation time. The 10KV cable terminal head fixing device provided by the present application can replace the disadvantages in the process of artificial shaping and terminal head installation, reduce the working intensity of workers, shorten the operation time, and improve the operation efficiency.

[0013] Additional aspects and advantages of the present application will be partially given in the following description, partially will become obvious from the following description, or will be understood by practicing the present application. BRIEF DESCRIPTION OF DRAWINGS

[0014] Additional aspects and advantages of the present application will become apparent and easily understood by the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0015] Figure 1 The rear view schematic diagram of the 10KV cable terminal head fixing device provided by the embodiments of the present application is shown;

[0016] Figure 2 The front view schematic diagram of the 10kV cable terminal head fixing device provided by the embodiments of the present application is shown;

[0017] Figure 3 The structure schematic diagram of the arc-shaped open plate provided by the embodiments of the present application is shown;

[0018] Figure 4 A structural schematic diagram of a lead screw provided for an embodiment of the present application is shown in FIG. 1.

[0019] Figure 5 A structural schematic diagram of a nut seat provided for an embodiment of the present application is shown in FIG. 2.

[0020] Figure 6 A structural schematic diagram of a nut clip provided for an embodiment of the present application is shown in FIG. 3.

[0021] Reference signs:

[0022] Nut clip 110, semicircular steel 111, fastener 112;

[0023] Lead screw 120, nut seat 121;

[0024] Arc-shaped open plate 130, ratchet wrench 131, operating rod 132. DETAILED DESCRIPTION

[0025] The embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary, only for explaining the present application, and cannot be understood as a limitation to the present application.

[0026] In the description of the present application, it is understood that, if there is a description of orientation, for example, the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation to the present application.

[0027] In the description of the present application, if there is a description of first, second, only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0028] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0029] In the process of 10kV cable access substation distribution cabinet, the installation of cable indoor terminal (hereinafter referred to as "terminal") is an important part of cable access construction. In the related art, in the installation process of the cable indoor terminal, in order to ensure that the terminal double-hole clamp and the copper plate end opening position in the distribution cabinet interval are aligned, the A / C sides of the terminal must be shaped. Due to the narrow interval of the distribution room, the thick cable core, the rebound deformation after shaping, the influence of the monitoring equipment on the terminal movement and other factors, the terminal shaping is difficult and difficult to shape, and needs to be adjusted many times, which finally leads to high terminal installation time ratio.

[0030] To solve the above problems, the present application provides a 10KV cable terminal fixing device. The embodiments of the present application are further described below with reference to the accompanying drawings.

[0031] Referring to Figures 1 to 5 The present application provides a 10KV cable terminal fixing device, which comprises a screw rod 120 transmission mechanism, an arc open type mechanism, a pipe clamp screw fixing mechanism and a ratchet wrench 131. The arc open type mechanism comprises two arc open type plate members 130, the screw rod 120 transmission mechanism comprises a screw rod 120 and two nut seats 121, the two nut seats 121 are slidably arranged on the screw rod 120, the ratchet wrench 131 is fixedly connected with the screw rod 120, and the ratchet wrench 131 is arranged between the two nut seats 121. The arc open type plate member 130 corresponds to the nut seat 121 one by one, the arc open type plate member 130 is connected with the corresponding nut seat 121, the pipe clamp screw fixing mechanism comprises two groups of pipe clamp screw fixing assemblies, each group of pipe clamp screw fixing assembly corresponds to the nut seat 121 one by one, each group of pipe clamp screw fixing assembly comprises at least two screw clamp clamps 110, the two screw clamp clamps 110 are respectively connected with the two ends of the corresponding nut seat 121, and the two screw clamp clamps 110 are arranged adjacent to the arc open type plate member 130. The screw clamp clamp 110 is used for fixing the compression joint pipe of the cable A / C phase connection terminal.

[0032] In the related art, terminal head access is roughly divided into five processes of insulation and pressure test, terminal head installation, transformer installation, fault indicator installation, and fireproof plugging. In the related art, the average time of each link of the terminal head access is analyzed and researched by the team, and the terminal head installation time is obviously higher than that of other links, reaching 120 min. The influencing factors are: (1) The interval of the distribution room of the substation is narrow, with a width of only 80 cm, which is not conducive to the installation of workers; (2) The position of the copper plate end (horizontal arrangement) and the hole position (double holes arranged in the upper and lower positions) in the interval, in order to ensure that the terminal head double-hole clamp (double holes arranged in the upper and lower positions) is aligned with the hole of the copper plate end in the interval, it is necessary to ensure that the terminal head double-hole clamp is in a vertical state; (3) After the terminal head is completed, the A / B / C three-phase is in a straight line state, in order to ensure that the double-hole clamps on both sides of the A / C phase cable head are in a vertical state, it is necessary to shape the A / C phase cable head; (4) The incoming station cable is generally the main trunk line, and the cable core is relatively thick, and the cable model is generally YJLV22-3*400 (diameter 9.4-10 cm), YJV22-3*300 (diameter 8.2-8.9 cm); the A / C phase cable head of the terminal head is currently shaped manually, the cable core stress is too large, which leads to difficulty in shaping, and the cable core is prone to rebound deformation during movement and needs to be adjusted multiple times; (5) The space under the interval of the distribution cabinet is narrow, and the cable end needs to be installed with monitoring equipment such as fault indicators, transformers, temperature controllers and the like, and various monitoring equipment is located in the narrow cable trench and is stressed with each other, affecting the movement position of the terminal head.

[0033] Based on this, in the work of installing the terminal head in the interval of the distribution room of the substation, under the premise of ensuring the construction quality, a cable head shaping tool is developed, which is light in weight, small in size, convenient to install, flexible and convenient to operate, saves time and labor, reduces the working intensity of workers, and at the same time shortens the operation time and improves the operation efficiency.

[0034] It should be noted that the length of the arc-shaped structure of the arc-shaped open plate 130 needs to be determined according to the bending radius of the steel pipe; the width of the arc-shaped structure needs to be determined according to the diameter of the steel pipe. The diameter of the screw clamp 110 needs to be determined according to the diameter of the locked object; the width of the screw clamp 110 needs to be determined according to the diameter of the locked object.

[0035] In some embodiments, the length of the screw rod 120 is 100 mm; the diameter of the screw nut seat 121 is 19.5 mm; and the diameter of the screw rod 120 is 19.4 mm.

[0036] It should be noted that the arc-shaped open plate 130 is installed on the nut seat 121 by screw welding, and the arc-shaped open plate 130 is shaped by continuously outwardly stressed cable cold shrink insulation tube. The arc-shaped open plate 130 is simple to manufacture, can be manufactured according to the parameters of the largest model cable as the object, is suitable for various models of cables, is convenient to install, and is strong in shaping, only needs to polish the contact surface, and the process is simple, and the requirements are easy to meet.

[0037] It should be noted that the screw rod 120 is made of high-strength steel material, has strong bearing capacity, and the screw thread of the lathe is easy to process.

[0038] It should be noted that the 10KV cable terminal head fixing device formed by the combination of various components is stable as a whole, the components are closely connected, the stress is uniform, the fixing mechanism is firm, the contact surface of the arc-shaped open mechanism is smooth, and there is no burr.

[0039] In some embodiments, the nut seat 121 is provided with a threaded hole near the upper and lower ends, respectively, and each screw thread clamp 110 is provided with a threaded connecting piece matched with the threaded hole. The threaded hole and the threaded connecting piece are one-to-one corresponding, and the stable connection between the screw thread clamp 110 and the corresponding nut seat 121 is realized by rotating the threaded connecting piece into the corresponding threaded hole.

[0040] In the present application, the screw rod 120 is stressed at both ends by rotating the ratchet handle, and the two nut seats 121 are reversely stressed to produce relative displacement. The screw thread clamp 110 is used to fix the cable A / C phase terminal crimping pipe, the arc-shaped open plate 130 is used to shape the cable head A / C phase, and the pipe clamp screw fixing assembly can ensure that the fixed object does not loosen and displace during stress. The device as a terminal head adjuster can one-time realize cable head A / C phase shaping and ensure that no deformation occurs during movement, and the cable head A / C phase adjustment link can be omitted multiple times, thereby shortening the operation time. The 10KV cable terminal head fixing device provided in the present application can replace the disadvantages in the process of artificial shaping and terminal head installation, reduce the working intensity of workers, shorten the operation time, and improve the operation efficiency.

[0041] Reference Figures 1 to 2 It can be understood that the 10KV cable terminal head fixing device further comprises an operating rod 132 connected with the end of the ratchet wrench 131 away from the screw rod 120.

[0042] It should be noted that the ratchet wrench 131 is connected with the operating rod 132 through the reversible ratchet structure, and the ratchet wrench 131 is operated by the extended operating rod 132, which is labor-saving and convenient.

[0043] In some embodiments, the inner diameter of the ratchet is 19.4 mm, and the length of the operating rod 132 is 340 mm.

[0044] It can be understood that the arc-shaped open plate 130 is made of cast iron.

[0045] It should be noted that the arc-shaped open plate 130 is made of cast iron, which is heavy, strong in bearing capacity, hard in material, and good in plasticity.

[0046] It can be understood that the thread clamp 110 is made of stainless steel.

[0047] It should be noted that the thread clamp 110 in the present application refers to the stainless steel pipe rack structure, and the steel pipe rack is installed on the thread nut seat 121 by screw welding. The thread clamp 110 is opened to fix the cable A / C phase terminal crimping pipe.

[0048] It can be understood that the thread of the lead screw 120 is a T-shaped coarse thread.

[0049] In some embodiments, the A / C phase copper plate hole spacing in the transformer substation distribution cabinet outlet interval is 420 mm. In order to ensure that it does not exceed the range of motion and facilitate operation, the length of the lead screw 120 used is 500 mm; the diameter of the hole opener is 19.8 mm; in order to prevent the lead from slipping, the thread uses a T-shaped coarse thread with stronger bearing capacity.

[0050] Referring to Figure 6 It can be understood that each thread clamp 110 includes a fastener 112 and two semicircular steels 111, one end of the two semicircular steels 111 is movably connected, and the other end of the two semicircular steels 111 is connected by the fastener 112.

[0051] It should be noted that this thread clamp 110 has simple structure, low precision requirement for manufacturing and installation, and is easy to manufacture. The fixed point can be adjusted by adjusting the tensioning mechanism, which avoids loosening of the fixed point and displacement.

[0052] It can be understood that the fastener 112 includes a bolt and a nut, and the end of the two semicircular steels 111 close to the fastener 112 is provided with a steel plate, the two steel plates are oppositely arranged, each steel plate is provided with a through hole corresponding to the bolt, the bolt is sequentially provided in the two steel plates through the two through holes, and the nut is threadedly connected with the bolt.

[0053] In the description of the application, reference to terms such as "one embodiment", "some embodiments", "an exemplary embodiment", "an example", "a specific example", or "some examples" means that a particular feature, structure, material, or characteristic being described is included in at least one embodiment or example of the application. The appearances of the above-described terms in various places in the specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0054] The above describes the preferred embodiments of the application. It should be pointed out that, for those skilled in the art, several improvements and refinements can be made without departing from the principles of the application, and these improvements and refinements are also considered to be within the protection scope of the application.

[0055] Although the embodiments of the application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and purposes of the application, and the scope of the application is defined by the claims and their equivalents.

Claims

1. A 10KV cable termination fixture, characterized by, The utility model relates to a 10KV cable terminal fixing device, including: A screw rod transmission mechanism, an arc open type mechanism, a pipe clamp screw fixing mechanism and a ratchet wrench; The arc open type mechanism includes two arc open type plate members, the screw rod transmission mechanism includes a screw rod and two screw nut bases, the two screw nut bases are slidably arranged on the screw rod, the ratchet wrench is fixedly connected with the screw rod, and the ratchet wrench is arranged between the two screw nut bases, the arc open type plate member corresponds to the screw nut base one by one, the arc open type plate member is connected with the corresponding screw nut base, the pipe clamp screw fixing mechanism includes two groups of pipe clamp screw fixing assemblies, each group of pipe clamp screw fixing assemblies corresponds to the screw nut base one by one, each group of pipe clamp screw fixing assemblies includes at least two screw clamp clamps, the two screw clamp clamps are respectively connected with two ends of the corresponding screw nut base, and the two screw clamp clamps are arranged adjacent to the arc open type plate member, and the screw clamp clamp is used for fixing the cable A / C phase connection terminal crimping pipe.

2. The 10 KV cable terminal fixing device according to claim 1, wherein, The 10KV cable terminal fixing device further includes an operating rod, and the operating rod is connected with one end of the ratchet wrench away from the screw rod.

3. The 10 KV cable terminal fixing device according to claim 1, wherein The arc open type plate member is made of cast iron.

4. The 10 KV cable termination fixture of claim 1, wherein, The screw clamp clamp is made of stainless steel.

5. The 10 KV cable termination fixture of claim 1, wherein, The screw rod has a T-shaped thick screw.

6. The 10 KV cable termination fixture of claim 1, wherein, Each screw clamp clamp includes a fastener and two semicircular steels, one end of the two semicircular steels is movably connected, and the other end of the two semicircular steels is connected through the fastener.

7. The 10 KV cable termination fixture of claim 6, wherein, The fastener includes a bolt and a nut, one end of the two semicircular steels close to the fastener is protrudingly provided with a steel plate, the two steel plates are oppositely arranged, each steel plate is provided with a through hole corresponding to the bolt, the bolt is sequentially arranged in the two steel plates through the two through holes, and the nut is threadedly connected with the bolt.

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