Adaptively-adjusted power distribution cable line joint protection device

Abstract

The invention relates to the technical field of electrical connection, in particular to a self-adaptive adjustment power distribution cable line joint protection device. The self-adaptive adjusting power distribution cable line joint protection device comprises two connecting pieces, a female joint, a male joint, a lower protection plate, an upper protection plate, a clamping plate, corrugations and an adjusting assembly, the male joint is installed at the left end of the right connecting piece, the female joint is installed at the right end of the left connecting piece, and the lower protection plate is installed at the right end of the right connecting piece. The female connector is matched with the male connector in an inserted mode, the lower half portions of the outer sides of the connecting pieces are connected with the lower protection plates, the number of the upper protection plates is two, and the upper protection plates can be fixed to the two lower protection plates respectively in an installation mode. Through cooperative cooperation of the rotating block, the push block, the pulley and the reset spring, accurate movement adjustment of the clamping plate can be achieved, the operation process is simplified, the connecting piece can adapt to cables of different sizes and types, and diversified use requirements are met.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical connection, and in particular to a self-adaptive distribution cable line joint protection device. Background Art

[0002] In the power system, the connection of distribution cables is a key link to ensure stable power transmission. The performance of distribution cable line joints is directly related to the safety and reliability of power transmission. However, although there are many types of distribution cable line joint protection devices on the market, there are still many deficiencies in practical applications.

[0003] Most of the existing power distribution cable line joint protection devices are designed for specific specifications and types of cables and lack flexibility. Since cables produced by different manufacturers have significant differences in wire diameter, insulation thickness, and wire core material, traditional devices are difficult to adapt to these diverse needs. As a result, when connecting cables of different specifications, the connection is either not tight, prone to looseness, poor contact, etc., affecting the stability of power transmission; or the cable is damaged due to over-tightening and squeezing, reducing the service life of the cable.

[0004] In some special scenarios, such as the power transformation project of old residential areas, it is necessary to connect new cables with existing cables. Due to the different specifications of new and old cables (such as wire diameter differences, insulation aging, etc.), existing joint protection devices often cannot meet the needs. This not only increases the difficulty and cost of construction, but also lays hidden dangers for the safe operation of the power system. Summary of the invention

[0005] In order to overcome the above-mentioned shortcomings, an object of the present invention is to provide a self-adjusting distribution cable line joint protection device.

[0006] The technical solution is as follows: An adaptively adjustable distribution cable line joint protection device, including a connector, a female connector, a male connector, a lower guard plate, an upper guard plate, a clamping plate, corrugations and an adjustment component. The connector is provided with two, wherein a male connector is installed at the left end of the right connector, and a female connector is installed at the right end of the left connector. The female connector is plugged into the male connector, and the lower guard plate is connected to the lower half of the outer side of the connector. The upper guard plate is also provided with two, which can be fixed on the two lower guard plates respectively by installation. A clamping plate is slidably connected to the top of the internal chamber of the connector, and corrugations are provided below the internal chamber of the connector. At the same time, the bottom surface of the clamping plate is also corrugated, and an adjustment component is provided on the connector.

[0007] More preferably, the adjusting assembly includes a rotating block, a pushing block, a pulley, a return spring and an arc surface. The rotating block is rotatably connected to the outside of the connecting piece, the upper side of the inner ring of the rotating block is provided with an arc surface, the middle of the top of the clamping plate is connected to the pushing block, the pushing block is slidably connected to the inside of the connecting piece, the top of the pushing block is connected to a pulley abutting the arc surface, and the left and right sides of the top of the clamping plate are respectively connected to the inside of the connecting piece.

[0008] More preferably, it also includes a clamping bead, a buffer spring, a positioning rod and a tension spring. Four clamping beads are slidably connected along the circumferential interval at the position of the connecting piece located on the outside of the rotating block, and a buffer spring is connected between each clamping bead and the inside of the connecting piece. Similarly, four clamping beads are slidably connected along the circumferential interval at the position of the outer ring of the female joint and the male joint located on the inside of the rotating block, and buffer springs are also connected between these clamping beads and the inside of the male joint or the female joint. A plurality of clamping holes are respectively provided on the left and right side surfaces of the rotating block along the circumferential interval, and the clamping beads form a clamping fit with the corresponding clamping holes. Four positioning rods are slidably connected along the circumferential interval in the male joint and the female joint, respectively, and a tension spring is connected between the positioning rods and the inside of the male joint or the female joint, and the positioning rods are clamped into fit with the corresponding clamping beads.

[0009] More preferably, a snap-in block is further included, and the front and rear sides of the female connector that is docked with the male connector are respectively connected with snap-in blocks, and corresponding positions on the male connector are respectively provided with snap-in slots that match the snap-in blocks.

[0010] More preferably, it further comprises an elastic sheet and a friction portion, wherein the front and rear sides of the inner chamber of the connector are respectively connected with a V-shaped elastic sheet, and the friction portion is provided at the upper end of the elastic sheet.

[0011] More preferably, it also includes a ring, a top plate and a spring leaf, the inner sides of the lower guard plate and the upper guard plate are slidably connected with a ring that fits their respective shapes, and the rings are slidably connected with a plurality of obliquely arranged top plates at intervals, and the positions of the rings close to the top plates are connected with spring leaves, and the tail ends of the spring leaves are connected to the top plates.

[0012] More preferably, a fixing block is further included, the inner end faces of the upper guard plate are connected to the fixing block, and the outer end faces of the connecting piece are provided with matching grooves that match the fixing block at corresponding positions.

[0013] More preferably, a waterproof cover is further included, and the outer side of the connecting piece is sleeved with the waterproof cover in a tightened state.

[0014] The beneficial effects are: 1. Through the coordinated cooperation of the rotating block, the push block, the pulley and the reset spring, the clamping plate can be accurately moved and adjusted, which not only simplifies the operation process, but also enables the connector to adapt to cables of different sizes and types to meet diverse usage requirements.

[0015] 2. After the rotation, the rotating block is firmly fixed by the engagement of the card bead and the card hole. At the same time, during the plug-in process of the male connector and the female connector, the positioning rod further participates in the fixing effect. This double fixing mechanism significantly improves the stability and reliability of the connection, and effectively avoids the connection failure caused by loosening or falling off.

[0016] 3. When assembling, the operation can be completed according to the steps of cable pretreatment, insertion, clamping, installation of guard plate and connection of connector; when disassembling, just separate the connector, remove the upper guard plate, reverse the rotating block to loosen the clamping plate, and finally take out the cable. The whole installation and disassembly process is simple and efficient, which greatly facilitates the operator's daily maintenance work.

[0017] 4. In the process of the clamping plate pressing the wire core, the design of the V-shaped elastic sheet can tightly wrap the front and rear ends of the wire core, thereby significantly improving the conductivity between the wire core and the connector cavity, which not only enhances the efficiency of the electrical connection, but also reduces the risk of poor contact. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the female connector and the male connector separated according to the present invention.

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure of the fixing block, the adapting groove, the upper guard plate and other components of the present invention.

[0020] Figure 3 It is a three-dimensional structural schematic diagram of components such as the clamping block, the lower guard plate and the connecting piece of the present invention.

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the connecting piece, the clamping plate, the corrugation and other components of the present invention.

[0022] Figure 5 It is a schematic diagram of the three-dimensional structure of the upper guard plate and the fixing block component of the present invention.

[0023] Figure 6 It is a three-dimensional structural schematic diagram of the rotating block, connecting piece, female joint and other components of the present invention.

[0024] Figure 7 It is a three-dimensional structural schematic diagram of the rotating block, pulley, return spring and other components of the present invention.

[0025] Figure 8 It is a three-dimensional structural schematic diagram of the clamping plate, push block, pulley and other components of the present invention.

[0026] Fig. 9 It is a three-dimensional structural schematic diagram of the rotating block, pushing block, pulley and other components of the present invention.

[0027] Fig.10It is a three-dimensional structural schematic diagram of the rotating block, arc surface, pulley and other components of the present invention.

[0028] Fig.11 It is a three-dimensional structural schematic diagram of components such as a clamping bead, a buffer spring and a clamping hole of the present invention.

[0029] Fig.12 It is a three-dimensional structural schematic diagram of the components such as the clamping hole, the positioning rod and the tension spring of the present invention.

[0030] Fig.13 It is a three-dimensional structural schematic diagram of the positioning rod, tension spring, rotating block and other components of the present invention.

[0031] Fig.14 It is a schematic diagram of the planar structure of the clamping hole, positioning rod, female joint and other components of the present invention.

[0032] Fig.15 It is a schematic diagram of the three-dimensional structure of the collar, upper guard plate, lower guard plate and other components of the present invention.

[0033] Fig.16 It is a three-dimensional structural schematic diagram of the sleeve ring, top plate and spring leaf component of the present invention.

[0034] Fig.17 It is a three-dimensional structural schematic diagram of the elastic sheet and the friction part of the present invention.

[0035] Among them, the above-mentioned drawings include the following figure marks: 1_connecting piece, 102_female connector, 103_male connector, 104_lower guard plate, 105_upper guard plate, 106_clamping plate, 107_corrugation, 108_clamping block, 109_clamping slot, 201_rotating block, 202_push block, 203_pulley, 204_reset spring, 205_arc surface, 301_clamping bead, 302_buffer spring, 303_clamping hole, 304_positioning rod, 305_tension spring, 401_elastic sheet, 402_friction part, 501_ring, 502_top plate, 503_spring leaf, 601_fixing block, 602_adaptation slot, 7_waterproof cover. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Embodiment 1: An adaptively adjustable distribution cable line joint protection device, such as Figure 1-Figure 10As shown, it includes a connector 1, a female connector 102, a male connector 103, a lower guard plate 104, an upper guard plate 105, a clamping plate 106, a corrugation 107 and an adjustment component. The connector 1 is provided in two, wherein the left end of the right connector 1 is provided with a male connector 103, and the male connector 103 has a conductive part protruding outward, which plays a role of active insertion during the connection process; the right end of the left connector 1 is provided with a female connector 102, and the female connector 102 has an internal pin matching the male connector 103, which is used to accommodate and connect the conductive part of the male connector 103, and the lower guard plate 104 is integrally formed on the lower half of the outer side of the connector 1, and the upper guard plate 105 is also provided There are two of them, which can be fixed on the two lower guard plates 104 respectively by installation. The cables are plugged into the connector 1 and electrically connected with the corresponding female connector 102 and male connector 103. The lower guard plate 104 and the upper guard plate 105 play a wrapping and protective role for the cables. A metal clamping plate 106 is slidably connected to the top of the internal chamber of the connector 1, and a corrugation 107 is provided at the bottom of the internal chamber of the connector 1. At the same time, the bottom surface of the clamping plate 106 is also in the shape of corrugations 107. The purpose is to increase the friction with the cable and ensure that the cable core is reliably connected to the female connector 102 and the male connector 103, thereby forming a stable electrical connection. An adjustment component is provided on the connector 1.

[0038] like Figure 6-Figure 10 As shown, the adjustment component includes a rotating block 201, a push block 202, a pulley 203, a return spring 204 and an arc surface 205. The rotating block 201 is rotatably connected to the outer side of the connecting member 1, and the arc surface 205 is provided on the upper side of the inner ring of the rotating block 201. A push block 202 is welded in the middle of the top of the clamping plate 106. The push block 202 is slidably connected to the inside of the connecting member 1. The top of the push block 202 is connected to a pulley 203 abutting against the arc surface 205. The left and right sides of the top of the clamping plate 106 are respectively connected to the inside of the connecting member 1 with return springs 204. The connection between the connecting member 1 and the rotating block 201 has a certain friction force, and the friction force is greater than the elastic force of the return spring 204 to ensure that the rotating block 201 does not rotate by itself when no external force is applied.

[0039] When using the device, first remove the insulation layer at the end of the cable to expose a certain length of the wire core, and clean it to ensure good conductivity. Then insert the treated cable into the connector 1 to ensure that the wire core part of the cable is in full contact with the internal chamber of the connector 1. Then rotate the rotating block 201. Since the arc surface 205 on the upper side of the inner ring of the rotating block 201 abuts against the pulley 203, when the rotating block 201 rotates, its arc surface 205 will push the pulley 203 and the push block 202 to move downward, thereby driving the clamping plate 106 to move downward. During this process, the reset spring 204 is stretched accordingly. As the clamping plate 106 moves downward, it compresses the cable and, by applying a certain pressure, tightly fixes the cable end in the internal chamber of the connector 1, so that the connecting part tightly wraps the wire core, thereby forming a reliable electrical connection with the male connector 103 and the female connector 102. At the same time, since corrugations 107 are provided on the bottom surface of the clamping plate 106 and the bottom of the internal chamber of the connector 1, the friction force when clamping the cable is effectively increased under the action of the corrugations 107. The adjustable setting of the clamping plate 106 enables the device to be suitable for different types of cables. After the cable is fixed, the outer skin of the cable is supported on the lower guard plate 104, and then the operator installs and fixes the upper guard plate 105 on the lower guard plate 104. The assembly of the line connector is now completed. When making circuit connections, the connectors 1 on both sides are brought close to each other to plug the female connector 102 into the male connector 103, thereby achieving circuit connection. If it is necessary to disassemble the line connector, first separate the female connector 102 from the male connector 103, then remove the upper guard plate 105 from the lower guard plate 104, and then reverse the rotating block 201 to disengage the arc surface 205 from the pulley 203. At this time, the reset spring 204 will rebound and reset, driving the clamping plate 106, the push block 202 and the pulley 203 to move upward and reset. The clamping plate 106 releases the fixation on the cable core, so that the cable can be removed from the connector 1.

[0040] Embodiment 2: Based on embodiment 1, Figure 11-Figure 14As shown, it also includes a card bead 301, a buffer spring 302, a positioning rod 304 and a tension spring 305. The position of the connecting member 1 located outside the rotating block 201 is slidably connected with four card beads 301 at intervals along the circumferential direction, and a buffer spring 302 is connected between each card bead 301 and the inside of the connecting member 1. Similarly, at the position where the outer ring of the female joint 102 and the male joint 103 is located inside the rotating block 201, four card beads 301 are slidably connected at intervals along the circumferential direction, and these card beads 301 are also connected to the inside of the male joint 103 or the female joint 102 with a buffer spring 302. The rotating block 201 A plurality of latching holes 303 are provided on the left and right side surfaces at circumferential intervals, and the latching beads 301 form a snap fit with the corresponding latching holes 303. Four positioning rods 304 are slidingly connected in the male connector 103 and the female connector 102 at circumferential intervals, and a tension spring 305 is connected between the positioning rods 304 and the inside of the male connector 103 or the female connector 102, and the positions of the positioning rods 304 and the latching beads 301 are staggered. When the male connector 103 and the female connector 102 are plugged in, the positioning rods 304 on the left and right sides abut against each other, and the positioning rods 304 also snap fit with the corresponding latching beads 301.

[0041] When the rotating block 201 is rotated to control the movement of the clamping plate 106, the rotation of the rotating block 201 will push the beads 301 on both sides to move outward through the clamping holes 303. At this time, the buffer spring 302 is compressed to provide a reset force for the beads 301. During the rotation process, the rotating block 201 will pass over the beads 301. When the rotating block 201 stops rotating, the beads 301 rebound and reset under the reset action of the buffer spring 302, and then get stuck in the clamping hole 303, thereby fixing the rotating block 201 to prevent it from rotating accidentally. When the male connector 103 and the female connector 102 are plugged in to achieve circuit connection, the inner ends of the positioning rods 304 on both sides will squeeze each other, so that the positioning rods 304 on both sides move outward and plug into the corresponding clamping holes 303. In this process, the tension spring 305 is compressed accordingly. This action of the positioning rod 304 can further fix the rotating block 201, ensuring that the rotating block 201 cannot rotate easily, thereby ensuring that the cable forms a stable electrical connection. When the male connector 103 and the female connector 102 are disengaged, the tension spring 305 rebounds and resets, driving the positioning rod 304 to move inward, so that it disengages from the card hole 303, providing convenience for subsequent operations.

[0042] like Figure 2-Figure 3As shown, a snap-in block 108 is also included. At the position on the female connector 102 that is docked with the male connector 103, the front and rear sides are respectively connected with elastic snap-in blocks 108, and corresponding positions on the male connector 103 are respectively provided with snap-in grooves 109 that are compatible with the snap-in blocks 108. When the female connector 102 and the male connector 103 are plugged in, the elastic snap-in block 108 will be snap-fitted with the snap-in groove 109 to ensure the firmness of the connection between the female connector 102 and the male connector 103. When the two need to be separated, the snap-in block 108 only needs to be slightly squeezed to release the snap-in groove 109, and the female connector 102 and the male connector 103 can be easily separated.

[0043] like Figure 8 and Fig.17 As shown, it also includes an elastic sheet 401 and a friction portion 402. The front and rear sides of the inner chamber of the connector 1 are respectively connected with a V-shaped elastic sheet 401, and the elastic sheet 401 is made of metal material. The upper end of the elastic sheet 401 is provided with a friction portion 402. When the core part of the cable is inserted into the connector 1, the clamping plate 106 moves downward to press the core. During the process, the clamping plate 106 will contact the friction portion 402, and then squeeze the elastic sheet 401. Under the squeezing action, the elastic sheet 401 will wrap the front and back of the core, thereby improving the conductivity between the core and the chamber of the connector 1.

[0044] like Fig.15 and Fig.16 As shown, it also includes a ring 501, a top plate 502 and a spring 503. The inner sides of the lower guard plate 104 and the upper guard plate 105 are slidably connected with rings 501 that fit their respective shapes. The ring 501 is slidably connected with multiple obliquely arranged top plates 502 at intervals. The positions of the ring 501 close to the top plate 502 are connected with springs 503, and the tail ends of the springs 503 are connected to the top plate 502.

[0045] When the upper guard plate 105 and the lower guard plate 104 are installed together, the internal ring 501 will wrap the cable. At this time, the ring 501 is squeezed, thereby pushing the top plate 502. Under the action of the spring 503, the top plate 502 will press against the end face of the cable, which not only increases the stability of the lower guard plate 104 and the upper guard plate 105 in fixing the cable, but also plays a buffering role. When the upper guard plate 105 needs to be separated from the lower guard plate 104, the top plate 502 will rebound back to its initial position under the elastic reset action of the spring 503.

[0046] like Figure 2 , Figure 3 and Figure 5As shown, a fixing block 601 is also included. The inner end faces of the upper guard plate 105 are welded with the fixing blocks 601. The outer end faces of the connecting member 1 are provided with matching grooves 602 that match the fixing blocks 601. When the upper guard plate 105 is installed on the lower guard plate 104, the upper guard plate 105 can be initially positioned by engaging the fixing block 601 with the matching grooves 602 to ensure that the lower guard plate 104 is accurately aligned with the upper guard plate 105 for subsequent installation steps.

[0047] like Figure 1 As shown, a waterproof cover 7 is also included. The outer side of the connector 1 is sleeved with the waterproof cover 7 in a tightened state. After the cable is installed, the waterproof cover 7 is pulled outward to unfold. The waterproof cover 7 will cover the lower guard plate 104 and the upper guard plate 105, and cover the gaps between the various connecting components, thereby achieving a waterproof effect. When the cable needs to be disassembled later, the waterproof cover 7 can be tightened inward.

[0048] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An adaptively adjustable distribution cable line joint protection device, characterized in that: The invention comprises a connecting piece (1), a female connector (102), a male connector (103), a lower guard plate (104), an upper guard plate (105), a clamping plate (106), a corrugation (107) and an adjustment component. The connecting piece (1) is provided in two pieces, wherein the left end of the right connecting piece (1) is provided with a male connector (103), and the right end of the left connecting piece (1) is provided with a female connector (102). The female connector (102) and the male connector (103) are plugged and matched to connect. The lower half of the outer side of the component (1) is connected to a lower guard plate (104), and two upper guard plates (105) are also provided, which can be fixed on the two lower guard plates (104) respectively by installation. A clamping plate (106) is slidably connected above the internal chamber of the connecting component (1), and a corrugation (107) is provided below the internal chamber of the connecting component (1). At the same time, the bottom surface of the clamping plate (106) is also in the shape of a corrugation (107). An adjustment component is provided on the connecting component (1).

2. The adaptively adjustable distribution cable line joint protection device according to claim 1 is characterized in that: The adjusting component comprises a rotating block (201), a pushing block (202), a pulley (203), a return spring (204) and an arc surface (205); the rotating block (201) is rotatably connected to the outer side of the connecting member (1); the arc surface (205) is arranged on the upper side of the inner ring of the rotating block (201); the pushing block (202) is connected to the middle of the top of the clamping plate (106); the pushing block (202) is slidably connected to the inside of the connecting member (1); the top of the pushing block (202) is connected to a pulley (203) abutting against the arc surface (205); and the return springs (204) are respectively connected to the inside of the connecting member (1) on the left and right sides of the top of the clamping plate (106).

3. The adaptively adjustable distribution cable line joint protection device according to claim 2 is characterized in that: The connector (1) further comprises a clamping bead (301), a buffer spring (302), a positioning rod (304) and a tension spring (305). Four clamping beads (301) are slidably connected at intervals along the circumferential direction at a position on the outside of the rotating block (201) on the connector (1). A buffer spring (302) is connected between each clamping bead (301) and the inside of the connector (1). Similarly, four clamping beads (301) are slidably connected at intervals along the circumferential direction at a position on the outer ring of the female connector (102) and the male connector (103) located on the inside of the rotating block (201). These clamping beads (301) are connected to the male connector (103) at intervals along the circumferential direction. 3) or the inside of the female joint (102) is also connected with a buffer spring (302), the left and right sides of the rotating block (201) are respectively provided with a plurality of clamping holes (303) at intervals along the circumferential direction, the clamping beads (301) and the corresponding clamping holes (303) form a clamping fit, the male joint (103) and the female joint (102) are respectively provided with four positioning rods (304) at intervals along the circumferential direction in a sliding manner, a tension spring (305) is connected between the positioning rod (304) and the inside of the male joint (103) or the female joint (102), and the positioning rod (304) and the corresponding clamping beads (301) are clamped and fit.

4. The adaptively adjustable distribution cable line joint protection device according to claim 3 is characterized in that: It also includes a snap-in block (108), and the snap-in blocks (108) are connected to the front and rear sides of the female connector (102) at the position where the female connector (102) is connected to the male connector (103), and corresponding positions on the male connector (103) are respectively provided with snap-in slots (109) adapted to the snap-in block (108).

5. The adaptively adjustable distribution cable line joint protection device according to claim 4 is characterized in that: It also includes an elastic sheet (401) and a friction portion (402). The front and rear sides of the inner chamber of the connecting piece (1) are respectively connected with a V-shaped elastic sheet (401), and the friction portion (402) is provided at the upper end of the elastic sheet (401).

6. The adaptively adjustable distribution cable line joint protection device according to claim 5, characterized in that: The invention also comprises a collar (501), a top plate (502) and a spring (503); the inner sides of the lower guard plate (104) and the upper guard plate (105) are both slidably connected with collars (501) that fit their respective shapes; a plurality of top plates (502) that are obliquely arranged are slidably connected to the collar (501) at intervals; positions of the collar (501) close to the top plate (502) are all connected with springs (503), and the tail ends of the springs (503) are connected to the top plate (502).

7. The adaptively adjustable distribution cable line joint protection device according to claim 6, characterized in that: It also includes a fixing block (601), the inner end surface of the upper guard plate (105) is connected to the fixing block (601), and the outer end surface of the connecting member (1) is provided with an adaption groove (602) adapted to the fixing block (601) at a corresponding position.

8. The self-adaptive distribution cable line joint protection device according to claim 7, characterized in that: It also includes a waterproof sleeve (7), and the outer side of the connecting piece (1) is sleeved with the waterproof sleeve (7) in a tightened state.

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