Mounting device of cable terminal stress cone

Abstract

The invention provides a mounting device for a cable terminal stress cone. The mounting device comprises a main ring body, an inner bushing, a pressure mechanism and a locking mechanism, wherein the pressure mechanism is convenient for the main ring body to push the cable terminal stress cone; the main ring body is of an opening and closing structure and comprises a first main body and a second main body, one end of the first main body is hinged to one end of the second main body, and the other end of the first main body is connected with the other end of the second main body in an opening and closing mode and serves as the opening and closing end of the first main body and the second main body. The neck bush comprises a first neck bush body and a second neck bush body, and the first neck bush body and the second neck bush body are detachably connected with the first main body and the second main body respectively. The neck bush is provided with an opening matched with the cable terminal stress cone and a through hole for a cable to penetrate through, and the opening is communicated with the through hole; the locking mechanism is arranged at the opening and closing ends of the main body I and the main body II in a penetrating manner to lock the main body I and the main body II; the pressure mechanism is connected with the main ring body. According to the invention, the stress cone can be conveniently and effortlessly pushed and installed to a terminal cable shielding port to relieve an electric field, and the interface performance and stability of the installed stress cone are guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of electric power construction, and more particularly to an installation device for a cable terminal stress cone. Background Art

[0002] In the power operation system, the installation of the cable terminal stress cone is the weakest and most delicate link in the power construction. The high-voltage cable terminal is a cable accessory installed at the end of the cable line and has insulation and sealing properties to connect the cable to the power grid or other electrical equipment. The stress cone is a key component of the high-voltage cable terminal. Its installation process, method and tools and devices directly affect the safe operation of the cable line in the later stage, and determine the reliability of the high-voltage cable terminal and the safety of the high-voltage power transmission and distribution system.

[0003] At present, the stress cone installation tools are all made of steel with fixed specifications, and the stress cone cross-sections of high-voltage power cable terminals are of different sizes and specifications, and cannot be matched with tools of the same specifications. The installation is basically done by manpower to put it on the cable. When manpower is insufficient, some tool devices are used, such as using a manual hoist with a binding belt to wrap the stress cone and pull it down to put it on the cable. This installation close to brute force has the following disadvantages: 1. This construction method causes the construction workers to have a long operation time and high labor intensity. In addition, during the construction process, problems such as uneven manual force and poor stability are prone to occur.

[0004] 2. This bundling method can easily destroy the stress cone's holding stress, reduce the elasticity of the rubber, and accelerate the aging of the stress cone. The reliability of the interface performance during long-term operation cannot be guaranteed.

[0005] 3. The overall weight of the current stress cone installation tools is too large. The fine sharp corners and small burrs on the metal inner wall will puncture the cone surface of the stress cone, destroy the rubber stress, and scratch and bump the cable insulation. The scratches, pits and other damages on the surface of the cable insulation caused by bumps and scratches will become local weak points of the cable insulation. Under the long-term action of high voltage, the electric field will be distorted at these weak points, making it more likely to have local discharge and breakdown, causing power failures to the cable lines after they are put into operation. The scars not only require 3-4 hours to re-grind and polish the cable insulation, which increases the construction time but also increases the installation risk. Therefore, during the installation of the stress cone, ensuring the smooth surface of the cable insulation is an extremely important construction step. Summary of the invention

[0006] The purpose of the present invention is to overcome the shortcomings and deficiencies in the prior art and to provide an installation device for a cable terminal stress cone, which can conveniently and labor-savingly push the stress cone into the cable terminal for installation, not only reducing the construction difficulty of the stress cone installation, but also allowing for quick disassembly without the need to return the device to the original path and retract it from the other end of the cable, thereby effectively protecting the cable insulation and the surface of the stress cone, and reducing the risk of scratching and bumping the cable insulation during the return process, thereby improving the construction quality and ensuring the interface performance and stability of the installed stress cone.

[0007] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical solutions: an installation device for a cable terminal stress cone, characterized in that it includes a main ring body, an inner sleeve, a pressure mechanism and a locking mechanism for facilitating the main ring body to push the cable terminal stress cone; the main ring body is an opening and closing structure, and includes a main body one and a main body two, one end of the main body one and one end of the main body two are hinged to each other, and the other end of the main body one and the other end of the main body two can be opened and closed and connected, and serve as the opening and closing end of the main body one and the main body two; the inner sleeve includes an inner sleeve one and an inner sleeve two, and the inner sleeve one and the inner sleeve two are detachably connected to the main body one and the main body two respectively; the inner sleeve is provided with an opening matching the cable terminal stress cone and a through hole for the cable to be passed through, and the opening is connected to the through hole; the locking mechanism is passed through the opening and closing ends of the main body one and the main body two to lock the main body one and the main body two; the pressure mechanism is connected to the main ring body.

[0008] In the above scheme, when the installation device of the cable terminal stress cone of the present invention is inserted into the cable, the inner sleeve can be matched with the stress cone to contact each other, and the construction personnel press down the main ring body through the pressure mechanism, thereby pushing the electric stress cone, and realizing convenient and labor-saving auxiliary stress cone installation on the cable terminal, which can greatly reduce the difficulty of installing the cable terminal stress cone. At the same time, the inner sleeve can effectively protect the cable insulation and the surface of the stress cone, improve the construction quality, and thus ensure the subsequent cable construction quality and safe operation. In addition, the inner sleeve one and the inner sleeve two are detachably connected to the main body one and the main body two, respectively, which can facilitate the disassembly and assembly of the inner sleeve due to wear, or the inner sleeve can be replaced accordingly according to the different grades and models of cable terminal stress cones on the market, thereby improving the versatility and practicality of the installation tool, and the size range can be determined according to the maximum cable terminal stress cone diameter of 110kV~220kV, and can be adapted to the installation of any grade and model of cable terminal stress cone on the market. The main ring body of the present invention adopts an opening and closing structure, which can enable the installation device to be installed and work at any section of the cable. Moreover, when the stress cone is installed, the main ring body can be directly opened to complete the rapid disassembly of the installation tool. There is no need to retract the installation device from bottom to top and retract it from the other end of the cable, which also reduces the risk of scratching and bumping the cable insulation during the retraction process.

[0009] The inner sleeve one and the inner sleeve two are detachably connected to the main body one and the main body two respectively, which means that at least one card slot is provided inside the main body one and the main body two, and the inner sleeve one and the inner sleeve two are provided with convex strips equal in number to the card slots, and the inner sleeve one and the inner sleeve two are respectively connected to the main body one and the main body two by snapping together through the convex strips and the card slots.

[0010] The slot is provided with an elastic positioning member for preventing the inner sleeve from loosening; when the inner sleeve 1 and the inner sleeve 2 are buckled with the main body 1 and the main body 2 respectively, the elastic positioning member contacts the inner sleeve 1 and the inner sleeve 2. The elastic positioning member can ensure that the inner sleeve 1 and the inner sleeve 2 can be fixed on the main body 1 and the main body 2 and will not fall off, thereby ensuring the stability and reliability of the installation device during construction.

[0011] The pressure mechanism is a pressure lever and / or a tension component; the pressure lever is detachably connected to the main ring body; the pressure lever is evenly arranged outside the main ring body, or the pressure lever is symmetrically arranged on both sides of the main ring body; The tension component includes a tension ring and a lifting rope / chain hoist. The tension ring is evenly arranged on the outside of the main ring body and is detachably connected to the main ring body. One end of the lifting rope / chain hoist is detachably connected to the tension ring, and the other end is connected to an external tension device.

[0012] When the pressure handle is symmetrically arranged on both sides of the main ring body, it is ergonomic, making the construction workers more comfortable when pressing from top to bottom, increasing the pushing pressure, and also reducing manual labor. The present invention can achieve the purpose of pushing the stress cone downward by applying force to the stress cone through the pressure handle. When it is difficult for construction workers to install the stress cone on cables that are too high, a lifting rope / chain hoist can be tied to the tension ring, and the stress cone can be pushed by an external tension device instead of manually, so as to complete the installation of the stress cone on the cable terminal. Compared with the method of tying ropes or slings on the surface of the stress cone, which easily causes the stress cone to deform and lose the holding stress and reduce the elasticity of the rubber, the main force points of the present invention are on the evenly arranged tension rings, which can effectively prevent the stress cone from being pulled down and deformed and losing the holding stress, and protect the electrical performance of the stress cone after installation.

[0013] The locking mechanism comprises an outer shell, a pressing member, a transmission component, a positioning latch and a spring; the outer shell is a hollow structure; the transmission component and the positioning latch are respectively arranged inside the outer shell, the pressing member is arranged outside the outer shell and is detachably connected to one end of the transmission component, and the other end of the transmission component is against the positioning latch; the spring is set on the positioning latch and is respectively against the positioning latch and the outer shell; The outer side of the bottom of the outer shell is provided with a fixing portion for fixing it; or the locking mechanism further comprises a connecting piece for fixing the outer shell; the connecting piece is detachably connected to the outer shell, and the outer side of the connecting piece is provided with a fixing portion; During operation, the outer shell is installed on the main body one or the main body two through the fixing part and is located above the opening and closing ends of the main body one and the main body two; the pressing piece is operated to push the transmission component so that the spring is compressed and the positioning pin extends out of the outer shell, thereby locking the opening and closing ends of the main body one and the main body two; the pressing piece is operated to reset and the transmission component is reset and the positioning pin is retracted through the spring reset, thereby loosening the opening and closing ends of the main body one and the main body two.

[0014] The present invention can lock the opening and closing ends of the main body 1 and the main body 2 by pressing the positioning pin out of the outer shell through the pressing part; when the main body 1 and the main body 2 need to be opened, the pressing part is directly pressed again to make the positioning pin retract, thereby loosening the opening and closing ends of the main body 1 and the main body 2. The locking mechanism is easy to operate and has a quick opening and closing locking function, thereby improving the practicality and the use efficiency of the installation device. In addition, the fixing part can adopt a threaded structure. The present invention can first fix and install the locking mechanism through the fixing part, and then perform the subsequent locking operation, which can facilitate each locking operation.

[0015] The outer shell is provided with a plurality of support modules, and a support platform and a transition platform are provided at the end of each support module. There is a step structure between the support platform and the transition platform to form a positioning slot; the empty slot between adjacent support modules serves as slideway one; and each support module is provided with slideway two.

[0016] The transmission component includes a pressure sliding shaft and a rotating gear; the pressing member is connected to one end of the pressure sliding shaft, and the other end of the pressure sliding shaft is plugged into and in contact with the rotating gear; The pressure sliding shaft comprises a sliding shaft body, the bottom of which is provided with a clamping portion for contacting with a rotating gear; the side wall of the sliding shaft body is provided with a sliding bar, which is matched with the first slideway and the second slideway for sliding connection.

[0017] The rotating gear comprises a main body, one end of which is plugged into the pressure sliding shaft, and the other end of which is against the positioning pin; racks are evenly arranged on the main body, and the end surface of the rack is provided with a tooth surface that is engaged with the engaging portion of the sliding shaft body; When the pressure slide shaft pushes the rotating gear and the positioning pin, the tooth surface of the rack is stuck in the positioning slot between the support platform and the transition platform. At this time, the spring is compressed and the positioning pin extends out of the outer shell, thereby locking the opening and closing ends of the main body one and the main body two; when the pressure slide shaft is reset, it is pushed back by the spring reset, and the tooth surface of the rack passes through the transition platform and enters the slideway one. At this time, the positioning pin retracts, thereby loosening the opening and closing ends of the main body one and the main body two.

[0018] The tooth surface and the end surface of the transition platform have an arc respectively, and the tooth surface and the end surface of the transition platform match each other. The engaging portion of the sliding shaft body of the present invention also matches and engages with the tooth surface.

[0019] The inner liner is made of nylon plastic; The installation device also includes an ejection component for ejecting the inner bushing; the ejection component includes an ejection rod, the main ring body is provided with an ejection hole, and the ejection rod passes through the ejection hole to eject the inner bushing.

[0020] The pressing member of the present invention is detachably connected to the pressure slide shaft of the transmission member, and the connecting member is detachably connected to the outer shell, so that the entire structure of the locking mechanism can be disassembled and assembled, which is convenient for replacing various accessories. In addition, the design of the positioning slot can support the rack so that the positioning pin is in an extended state.

[0021] The locking mechanism of the present invention is used like this: 1. Connect the locking mechanism to the main body 1 or the main body 2 through the fixing part, and fix it above the opening and closing end of the main body 1 or the main body 2.

[0022] 2. Press the pressing piece, and the pressure sliding shaft connected to the pressing piece pushes the rotating gear and the positioning pin. The tooth surface of the rack of the rotating gear is clamped in the positioning slot between the support platform and the transition platform. At this time, the spring is compressed, and the positioning pin extends out of the outer shell and is inserted into the opening and closing end of the main body one and the main body two for locking, thereby locking the main body one and the main body two.

[0023] 3. When the main body 1 and the main body 2 need to be opened, press the pressing part, push it back through the spring reset, the pressure slide shaft resets, and the tooth surface of the rack enters the slideway 1 (the empty slot between adjacent support modules) through the transition platform. At this time, the positioning pin retracts from the opening and closing end of the main body 1 and the main body 2 to the inside of the outer shell, thereby loosening the main body 1 and the main body 2.

[0024] Compared with the prior art, the present invention has the following advantages and beneficial effects: 1. The installation device of the cable terminal stress cone of the present invention can conveniently and labor-savingly push the stress cone to the terminal cable shielding port to relieve the electric field, which not only reduces the construction difficulty of stress cone installation, but also can be quickly disassembled without the need to return the original route and retract it from the other end of the cable, thereby effectively protecting the cable insulation and the surface of the stress cone, and also reducing the risk of scratching and bumping the cable insulation during the original route return process, improving the construction quality, and ensuring the interface performance and stability of the installed stress cone. Therefore, the installation device of the present invention can ensure the smooth surface of the cable insulation during the stress cone installation process to ensure safe electrical operation.

[0025] 2. The inner sleeve of the installation device of the cable terminal stress cone of the present invention is detachably connected to the main ring body, which can facilitate the disassembly and assembly of the inner sleeve due to wear, or the inner sleeve can be replaced accordingly according to the different grades and models of cable terminal stress cones on the market, thereby improving the versatility and practicality of the installation tool.

[0026] 3. The locking mechanism of the installation device of the present invention is easy to operate and has a quick opening and closing locking function, thereby improving the practicality and use efficiency of the installation device. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the installation device of the cable terminal stress cone of the present invention; Figure 2 It is a schematic diagram of the interior of the installation device of the cable terminal stress cone of the present invention; Figure 3 is a schematic diagram of a main body 1 in the installation device of the present invention; Figure 4 It is a schematic diagram of the main body 2 in the installation device of the present invention; Figure 5 It is a schematic diagram of the inner liner sleeve 1 or the inner liner sleeve 2 in the installation device of the present invention; Figure 6 is a schematic diagram of a locking mechanism in the installation device of the present invention; Figure 7 is an internal schematic diagram of a locking mechanism in the installation device of the present invention; Figure 8 It is a schematic diagram of the connection between the pressing member, the transmission member and the positioning pin in the locking mechanism of the present invention; Fig. 9 is a schematic diagram of a rotating gear in the locking mechanism of the present invention; Fig.10 It is a schematic diagram of the interior of the outer shell of the locking mechanism of the present invention; Fig.11 It is a schematic diagram of the pressure slide shaft in the locking mechanism of the present invention inside the outer shell; Fig.12 is a schematic diagram of a connecting member in the locking mechanism of the present invention; Among them, 1 is the main ring body, 1.1 is the card slot, 1.2 is the main body 1, 1.3 is the main body 2, 1.4 is the opening and closing end, 1.5 is the joint block, 1.6 is the hole position 1, 1.7 is the plug block, 1.8 is the hole position 2, 2 is the inner bushing, 2.1 is the opening, 2.2 is the through hole, 2.3 is the convex strip, 3 is the mounting hole, 4 is the locking mechanism, 4.1 is the outer shell, 4.2 is the pressing part, 4.3 is the positioning pin, 4.4 is Connecting parts, 4.4.1 is external thread, 4.5 is pressure sliding shaft, 4.5.1 is locking part, 4.6 is rotating gear, 4.6.1 is rack, 4.6.2 is tooth surface, 4.7 is supporting module, 4.7.1 is supporting platform, 4.7.2 is transition platform, 4.7.3 is slideway 2, 4.8 is slideway 1, 4.9 is sliding bar, 5 is pressure handle bar, 6 is tension lifting ring, 7 is ejector rod, and 8 is ejector hole. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. Example

[0029] like Figures 1 to 12 As shown, the installation device of the cable terminal stress cone of the present invention includes a main ring body 1, an inner sleeve 2, a pressure mechanism and a locking mechanism 4 for facilitating the main ring body 1 to push the cable terminal stress cone, wherein the main ring body 1 is an opening and closing structure, and includes a main body 1.2 and a main body 2 1.3, one end of the main body 1.2 and one end of the main body 2 1.3 are hinged to each other, and the other end of the main body 1.2 and the other end of the main body 2 1.3 can be opened and closed, and serve as an opening and closing end 1.4 of the main body 1.2 and the main body 2 1.3. The inner sleeve 2 includes an inner sleeve 1 and an inner sleeve 2, and the inner sleeve 1 and the inner sleeve 2 are detachably connected to the main body 1.2 and the main body 2 1.3 respectively. In addition, the inner sleeve 2 is provided with an opening 2.1 matching the cable terminal stress cone and a through hole 2.2 for cable insertion, and the opening 2.1 is connected to the through hole 2.2. The locking mechanism 4 of the present invention is penetrated through the opening and closing end 1.4 of the main body 1.2 and the main body 2 1.3 to achieve locking of the main body 1.2 and the main body 2 1.3, and the pressure mechanism is connected to the main ring body 1.

[0030] Specifically, the non-hinged end of the main body 1.3 is provided with two joint blocks 1.5 with holes, a socket is formed between the two joint blocks 1.5, and the hole 1.6 of the upper joint block 1.5 is provided with an internal thread. The non-hinged end of the main body 1.2 is provided with an insert block 1.7 with a hole 1.8, when the main body 1.2 and the main body 1.3 are put together, the insert block 1.7 is inserted into the socket, the hole 1.6 of the lower joint block 1.5 of the main body 1.3 is opposite to the hole 1.8 of the main body 1.2, and the insert block 1.7 is inserted into the socket as the opening and closing end 1.4 of the main body 1.2 and the main body 1.3.

[0031] The detachable connection between the inner sleeve 1 and the inner sleeve 2 of the present invention and the main body 1 1.2 and the main body 2 1.3 respectively means that at least one slot 1.1 is provided inside the main body 1.2 and the main body 2 1.3, and the inner sleeve 1 and the inner sleeve 2 are provided with convex strips 2.3 equal to the number of the slots 1.1, and the inner sleeve 1 and the inner sleeve 2 are respectively connected with the main body 1 1.2 and the main body 2 1.3 by snapping. In order to ensure that the inner sleeve 2 can be fixed to the main ring body 1 and does not fall off, an elastic positioning member (not shown) is provided in the slot 1.1 to prevent the inner sleeve 2 from loosening. Figure 3 The figure shows the mounting hole 3 of the elastic positioning member; when the inner sleeve 1 and the inner sleeve 2 are buckled with the main body 1.2 and the main body 2 1.3 respectively, the elastic positioning member contacts the inner sleeve 1 and the inner sleeve 2, which can ensure the stability and reliability of the installation device during construction.

[0032] The pressure mechanism of this embodiment is a pressure lever 5 and a tension component, wherein the pressure lever 5 is detachably connected to the main ring body 1 and symmetrically arranged on both sides of the main ring body 1. During the construction process, the pressure lever 5 can also be evenly arranged on the outside of the main ring body 1 according to actual needs. When the pressure lever 5 is symmetrically arranged on both sides of the main ring body 1, it is ergonomic, making the construction workers more comfortable when pressing from top to bottom, increasing the pushing pressure, and also reducing manual labor. The tension component includes a tension ring 6 and a lifting rope / chain hoist, wherein the tension ring 6 is evenly arranged on the outside of the main ring body 1 and detachably connected to the main ring body 1, one end of the lifting rope / chain hoist is detachably connected to the tension ring 6, and the other end is connected to an external tension device.

[0033] The present invention can achieve the purpose of pushing the stress cone downward by applying force to the stress cone at the cable terminal through the pressure lever 5. When it is difficult for construction workers to install the stress cone on a high cable, a lifting rope / chain hoist can be tied to the tension ring 6, and the stress cone can be pushed by an external tension device instead of manual work to complete the installation of the stress cone on the cable terminal. Compared with the method of tying ropes or slings on the surface of the stress cone, which easily causes the stress cone to deform and lose the holding stress, the main force points of the present invention are on the evenly arranged tension rings 6, which can effectively prevent the stress cone from being pulled down and deformed, losing the holding stress, and reducing the elasticity of the rubber, thereby protecting the electrical performance of the stress cone after installation.

[0034] The mounting device of the present invention further comprises an ejection component for ejecting the inner sleeve 2, the ejection component comprises an ejection rod 7, the main ring body 1 is provided with an ejection hole 8, and the ejection rod 7 passes through the ejection hole 8 to eject the inner sleeve 2. When the inner sleeve 2 is deformed and difficult to remove, the inner sleeve 2 can be ejected by inserting the ejection rod 7 into the ejection hole 8, so as to increase the speed of replacing or removing the inner sleeve 2 and reduce the difficulty of replacing the inner sleeve 2.

[0035] The inner bushing 2 of the present invention is an inner bushing made of nylon plastic. The inner bushing 2 made of nylon plastic of the present invention can make the stress cone of the cable terminal evenly stressed, and the radial clearance between the cable insulation and the inner bushing is 3 to 5 mm, which can prevent the uneven manpower on both sides from causing the insulation to be scratched by tilted downward pressure, and can effectively eliminate the risk of knocking the cable insulation during pushing. During the pushing process, the stress cone of the cable terminal is evenly stressed, which can prevent the stress cone from being deformed and damaged due to excessive stress locally, thereby ensuring that the stress cone is intact after installation.

[0036] The locking mechanism of the present invention comprises an outer shell 4.1, a pressing member 4.2, a transmission component, a positioning latch 4.3, a spring (not shown) and a connecting member 4.4 for fixing the outer shell 4.1, wherein the outer shell 4.1 is a hollow structure, the connecting member 4.4 is threadedly connected to the outer shell 4.1, and an outer thread 4.4.1 is provided on the outer side of the connecting member 4.4. The transmission component and the positioning latch 4.3 are respectively arranged inside the outer shell 4.1, the pressing member 4.2 is arranged outside the outer shell 4.1 and is threadedly connected to one end of the transmission component, and the other end of the transmission component is against the positioning latch 4.3. The spring is set on the positioning latch 4.3 and is respectively against the positioning latch 4.3 and the outer shell 4.1.

[0037] During operation, the outer shell 4.1 is connected to the hole one 1.6 through the external thread 4.4.1 of the connecting piece 4.4, is installed on the upper joint block of the main body two 1.3, and is located above the opening and closing end 1.4 of the main body one 1.2 and the main body two 1.3; the operating pressing piece 4.2 pushes the transmission component to compress the spring and the positioning pin 4.3 extends out of the outer shell 4.1, thereby locking the opening and closing end 1.4 of the main body one 1.2 and the main body two 1.3; the operating pressing piece 4.2 is reset and the spring is reset to reset the transmission component and retract the positioning pin 4.3, thereby loosening the opening and closing end 1.4 of the main body one 1.2 and the main body two 1.3.

[0038] Specifically, the outer shell 4.1 is provided with a plurality of support modules 4.7, and a support platform 4.7.1 and a transition platform 4.7.2 are provided at the end of each support module 4.7. There is a step structure between the support platform 4.7.1 and the transition platform 4.7.2 to form a slot; the empty slot between adjacent support modules 4.7 serves as a slideway 1 4.8; and each support module 4.7 is provided with a slideway 2 4.7.3.

[0039] The transmission component of the present invention includes a pressure slide shaft 4.5 and a rotating gear 4.6, wherein a pressing member 4.2 is connected to one end of the pressure slide shaft 4.5, and the other end of the pressure slide shaft 4.5 is plugged into and in contact with the rotating gear 4.6. The pressure slide shaft 4.5 includes a slide shaft body, and a clamping portion 4.5.1 for contacting the rotating gear 4.6 is provided at the bottom of the slide shaft body. A slide bar 4.9 is provided on the side wall of the slide shaft body, and the slide bar 4.9 is matched and slidably connected with the slideway 1 4.8 and the slideway 2 4.7.3. This design can ensure that the slide shaft body pushes the rotating gear 4.6 to slide smoothly in the axial direction of the outer shell 4.1, while ensuring the sliding accuracy.

[0040] The rotating gear 4.6 of the present invention comprises a main body, one end of which is plugged into the pressure sliding shaft 4.5, and the other end is against the positioning pin 4.3, and racks 4.6.1 are evenly arranged on the main body, and the end surface of the rack 4.6.1 is provided with a tooth surface 4.6.2 that is engaged with the engaging portion 4.5.1 of the sliding shaft body. The tooth surface 4.6.2 and the end surface of the transition platform 4.7.2 have an arc respectively, and the tooth surface 4.6.2 matches the end surface of the transition platform 4.7.2, and the engaging portion 4.5.1 of the sliding shaft body also matches and engages with the tooth surface 4.6.2. When the pressure slide shaft 4.5 pushes the rotating gear 4.6 and the positioning latch 4.3, the tooth surface 4.6.2 of the rack 4.6.1 is stuck in the slot between the support platform 4.7.1 and the transition platform 4.7.2. At this time, the spring is compressed and the positioning latch 4.3 extends out of the outer shell 4.1, thereby locking the opening and closing ends 1.4 of the main body 1.2 and the main body 2 1.3; when the pressure slide shaft 4.5 is reset, it is pushed back by the spring reset, and the tooth surface 4.6.2 of the rack 4.6.1 passes through the transition platform 4.7.2 and enters the slideway 1 4.8. At this time, the positioning latch 4.3 retracts, thereby loosening the opening and closing ends 1.4 of the main body 1.2 and the main body 2 1.3.

[0041] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A device for installing a cable terminal stress cone, characterized in that: It includes a main ring body, an inner sleeve, a pressure mechanism and a locking mechanism for facilitating the main ring body to push the cable terminal stress cone; the main ring body is an opening and closing structure, and includes a main body one and a main body two, one end of the main body one and one end of the main body two are hinged to each other, the other end of the main body one and the other end of the main body two can be opened and closed and connected, and serve as the opening and closing end of the main body one and the main body two; the inner sleeve includes an inner sleeve one and an inner sleeve two, and the inner sleeve one and the inner sleeve two are detachably connected to the main body one and the main body two respectively; the inner sleeve is provided with an opening matching the cable terminal stress cone and a through hole for the cable to be passed through, and the opening is connected to the through hole; the locking mechanism is passed through the opening and closing ends of the main body one and the main body two to lock the main body one and the main body two; the pressure mechanism is connected to the main ring body.

2. The installation device for the cable terminal stress cone according to claim 1, characterized in that: The inner sleeve one and the inner sleeve two are detachably connected to the main body one and the main body two respectively, which means that at least one card slot is provided inside the main body one and the main body two, and the inner sleeve one and the inner sleeve two are provided with convex strips equal in number to the card slots, and the inner sleeve one and the inner sleeve two are respectively connected to the main body one and the main body two by snapping together through the convex strips and the card slots.

3. The installation device for the cable terminal stress cone according to claim 2, characterized in that: An elastic positioning piece for preventing the inner sleeve from loosening is arranged in the slot; when the inner sleeve 1 and the inner sleeve 2 are buckled with the main body 1 and the main body 2 respectively, the elastic positioning piece contacts the inner sleeve 1 and the inner sleeve 2.

4. The installation device for the cable terminal stress cone according to claim 1, characterized in that: The pressure mechanism is a pressure lever and / or a tension component; the pressure lever is detachably connected to the main ring body; the pressure lever is evenly arranged outside the main ring body, or the pressure lever is symmetrically arranged on both sides of the main ring body; The tension component includes a tension ring and a lifting rope / chain hoist. The tension ring is evenly arranged on the outside of the main ring body and is detachably connected to the main ring body. One end of the lifting rope / chain hoist is detachably connected to the tension ring, and the other end is connected to an external tension device.

5. The installation device for the cable terminal stress cone according to claim 1, characterized in that: The locking mechanism comprises an outer shell, a pressing member, a transmission component, a positioning latch and a spring; the outer shell is a hollow structure; the transmission component and the positioning latch are respectively arranged inside the outer shell, the pressing member is arranged outside the outer shell and is detachably connected to one end of the transmission component, and the other end of the transmission component is against the positioning latch; the spring is set on the positioning latch and is respectively against the positioning latch and the outer shell; The outer side of the bottom of the outer shell is provided with a fixing portion for fixing it; or the locking mechanism further comprises a connecting piece for fixing the outer shell; the connecting piece is detachably connected to the outer shell, and the outer side of the connecting piece is provided with a fixing portion; During operation, the outer shell is installed on the main body one or the main body two through the fixing part and is located above the opening and closing ends of the main body one and the main body two; the pressing piece is operated to push the transmission component so that the spring is compressed and the positioning pin extends out of the outer shell, thereby locking the opening and closing ends of the main body one and the main body two; the pressing piece is operated to reset and the transmission component is reset and the positioning pin is retracted through the spring reset, thereby loosening the opening and closing ends of the main body one and the main body two.

6. The installation device for the cable terminal stress cone according to claim 5, characterized in that: The outer shell is provided with a plurality of support modules, and a support platform and a transition platform are provided at the end of each support module. There is a step structure between the support platform and the transition platform to form a positioning slot; the empty slot between adjacent support modules serves as slideway one; and each support module is provided with slideway two.

7. The installation device for the cable terminal stress cone according to claim 6, characterized in that: The transmission component includes a pressure sliding shaft and a rotating gear; the pressing member is connected to one end of the pressure sliding shaft, and the other end of the pressure sliding shaft is plugged into and in contact with the rotating gear; The pressure sliding shaft comprises a sliding shaft body, and a clamping portion for contacting with a rotating gear is arranged at the bottom of the sliding shaft body; a sliding bar is arranged on the side wall of the sliding shaft body, and the sliding bar is matched and slidably connected with the first slideway and the second slideway.

8. The installation device for the cable terminal stress cone according to claim 7, characterized in that: The rotating gear comprises a main body, one end of which is plugged into the pressure sliding shaft, and the other end of which is against the positioning pin; racks are evenly arranged on the main body, and the end surface of the rack is provided with a tooth surface that is engaged with the engaging portion of the sliding shaft body; When the pressure slide shaft pushes the rotating gear and the positioning pin, the tooth surface of the rack is stuck in the positioning slot between the support platform and the transition platform. At this time, the spring is compressed and the positioning pin extends out of the outer shell, thereby locking the opening and closing ends of the main body one and the main body two; when the pressure slide shaft is reset, it is pushed back by the spring reset, and the tooth surface of the rack passes through the transition platform and enters the slideway one. At this time, the positioning pin retracts, thereby loosening the opening and closing ends of the main body one and the main body two.

9. The installation device for the cable terminal stress cone according to claim 8, characterized in that: The tooth surface and the end surface of the transition platform have radians respectively, and the tooth surface and the end surface of the transition platform match each other.

10. The installation device for the cable terminal stress cone according to claim 1, characterized in that: The inner liner is made of nylon plastic; The installation device also includes an ejection component for ejecting the inner bushing; the ejection component includes an ejection rod, the main ring body is provided with an ejection hole, and the ejection rod passes through the ejection hole to eject the inner bushing.

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