Adjustable wire clamping device self-locking structure

Abstract

The invention relates to the technical field of wire clamping devices, in particular to an adjustable wire clamping device self-locking structure which comprises a limiting assembly arranged on a fixed wire clamping part and used for fixing a movable wire clamping part and the fixed wire clamping part. The non-return assembly is arranged on the fixed wire clamping part, is used for limiting the movement of the movable wire clamping part and comprises a non-return driving part which is rotationally arranged in the fixed wire clamping part and is connected with the limiting assembly, one end of the non-return driving part is connected with a non-return wheel, one side of the non-return wheel is provided with a non-return plate clamped with the non-return wheel, and the non-return plate is connected with the movable wire clamping part; according to the cable clamping device, the limiting assembly and the non-return assembly are arranged, the limiting assembly is used for fixing the movable cable clamping part to the fixed cable clamping part, the movable cable clamping part can move up and down to a certain degree in the limiting assembly, the clamping position of a cable can be adjusted subsequently, and the limiting assembly can also prevent the cable from falling off from the clamping opening.

Description

Technical Field

[0001] The invention relates to the technical field of wire grippers, and in particular to an adjustable self-locking structure of a wire gripper. Background Art

[0002] Wire grippers are commonly used wire grippers in the construction and maintenance of electric power, telecommunications, and railway electrification overhead lines. Wire grippers are divided into aluminum alloy wire grippers, insulated wire grippers, and steel stranded wire grippers due to different working conditions and the different types and specifications of the wires they hold.

[0003] However, when the existing wire clamp is in use, the force of clamping the cable changes according to the force of pulling the operating part. Therefore, as long as the operating part is continuously pulled, the force of clamping the cable will continue to work; and when the force of pulling the operating part is released, the force of clamping the cable will disappear, and the clamping state cannot be maintained stably, and the wire clamp is easy to fall off from the clamping mouth. Summary of the invention

[0004] The purpose of the present invention is to solve the above-mentioned shortcomings and provide an adjustable wire gripper self-locking structure.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] An adjustable wire gripper self-locking structure comprises a main body, wherein the main body is provided with a driven part through a first rotating shaft, an operating part is provided at the top of the driven part through a second rotating shaft, the operating part is slidably arranged with the main body, an active wire gripping part is provided on the driven part through a third rotating shaft, a fixed wire gripping part fixed to the main body is provided at the bottom of the active wire gripping part, and further comprises:

[0007] A limit assembly is provided on the fixed wire clamping part and is used for fixing the movable wire clamping part and the fixed wire clamping part;

[0008] The anti-return assembly is arranged on the fixed wire-holding part and is used to limit the movement of the movable wire-holding part. It includes a anti-return driving part that is rotatably arranged in the fixed wire-holding part and connected to the limiting assembly. One end of the anti-return driving part is connected to a anti-return wheel, and one side of the anti-return wheel is provided with a anti-return plate that is clamped with the anti-return wheel. The anti-return plate is connected to the movable wire-holding part.

[0009] Furthermore, the limiting assembly includes a limiting plate rotatably arranged on the fixed wire clamping part and a positioning assembly inserted on the limiting plate, the positioning assembly is movably arranged on the movable wire clamping part, and the anti-reverse driving part is fixedly connected to the limiting plate.

[0010] Furthermore, the limit plate includes a sleeve plate fixedly connected to the anti-return driving part, a vertical plate is fixedly arranged on the top of the sleeve plate, a limit slot is opened on the vertical plate, the positioning assembly is located in the limit slot, and an adjustment part is also arranged on the top of the vertical plate, and the movable end of the adjustment part is located in the limit slot.

[0011] Furthermore, a groove is provided on the movable wire-clamping part, and the positioning assembly includes a positioning spring located in the groove, and a positioning protrusion is provided at one end of the positioning spring, and the positioning protrusion is inserted into the limiting groove.

[0012] Furthermore, the adjustment part includes a threaded rod rotatably arranged on the top of the vertical plate, a fixing frame is sleeved on the threaded rod, and a limiting slider is arranged at one end of the fixing frame away from the threaded rod, and the limiting slider is located in the limiting groove.

[0013] Furthermore, the anti-return drive part includes a fixed sleeve connected to the limit plate, a locking ring is fixedly arranged in the fixed sleeve, a thrust ring is arranged at one end of the locking ring, and the thrust ring is slidably connected to the locking ring through a first slide, a rotating ring is arranged at the other end of the locking ring, a force ring is rotatably arranged at the end of the rotating ring away from the locking ring through a first fixed shaft, the force ring is slidably connected to the fixed sleeve through a second slide, a push rod is arranged on the second force ring, and the end of the push rod away from the force ring is connected to the anti-return wheel, and a reset spring sleeved on the push rod is arranged as an assembly of the force ring and the inner wall of the fixed sleeve.

[0014] Furthermore, the locking ring has a plurality of deep grooves and shallow grooves at one end close to the rotating ring, the deep grooves and shallow grooves are arranged at intervals, the rotating ring is provided with an insertion rod inserted into the deep groove or the shallow groove, and the thrust ring is provided with serrations matching the insertion rod.

[0015] Furthermore, the anti-return wheel includes a wheel disc connected to the push rod, a movable groove is opened on the wheel disc, a anti-return block is rotatably arranged in the movable groove through a second fixed axis, the bottom end of the anti-return block is connected to the inner wall of the movable groove through an elastic member, and the anti-return block is engaged with the anti-return plate.

[0016] Furthermore, a lifting platform slidably connected to the main body is provided on the inner side of the movable wire clamping part, a sliding groove is provided on the lifting platform, and a transverse sliding block sliding in the sliding groove is provided on the movable wire clamping part. A connecting rod is provided at one end of the lifting platform, and the end of the connecting rod away from the lifting platform passes through the main body and is connected to the anti-return plate.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention provides a limiting component and a non-return component. The limiting component is used to fix the movable wire clamping part on the fixed wire clamping part, and the movable wire clamping part can move up and down to a certain extent in the limiting component, which is convenient for subsequent adjustment of the clamping position of the cable, and the limiting component can also prevent the cable from falling off from the clamping mouth; when the operating part is pulled, the movement of the movable wire clamping part can be limited by the non-return component, so that it can only move downward to clamp the cable. In this way, after the pulling force is removed, the wire clamp can still clamp the cable tightly and will not loosen. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0020] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the positions of the anti-return wheel and the anti-return plate of the present invention;

[0022] Figure 3 It is a schematic diagram of the connection between the anti-return plate and the movable wire clamping part of the present invention;

[0023] Figure 4 It is a structural schematic diagram of the anti-return wheel of the present invention;

[0024] Figure 5 It is a schematic diagram of the connection between the movable wire clamping part and the fixed wire clamping part of the present invention;

[0025] Figure 6 is a cross-sectional view of the movable wire clamping portion of the present invention;

[0026] Figure 7 It is an exploded schematic diagram of the non-return driving part of the present invention;

[0027] Figure 8 It is a structural schematic diagram of the regulating unit of the present invention.

[0028] In the figure: 1, main body; 2, driven part; 21, first rotating shaft; 3, operating part; 31, second rotating shaft; 4, movable clamping part; 41, third rotating shaft; 42, transverse sliding block; 5, fixed clamping part; 6, non-return driving part; 61, fixed sleeve; 62, locking ring; 621, deep groove; 622, shallow groove; 63, thrust ring; 631, sawtooth; 632, first slide plate; 64, rotating ring; 641, plug rod; 65, force ring; 651, second slide plate; 6 52. First fixed shaft; 66. Push rod; 67. Return spring; 7. Check wheel; 71. Wheel plate; 72. Check block; 73. Second fixed shaft; 74. Elastic member; 8. Check plate; 81. Lifting platform; 82. Connecting rod; 9. Limit plate; 91. Sleeve plate; 92. Vertical plate; 93. Limit groove; 10. Positioning assembly; 101. Positioning protrusion; 102. Positioning spring; 11. Adjusting part; 111. Threaded rod; 112. Limit slider; 113. Fixed frame. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0030] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0031] Reference Figure 1-Figure 8 As shown, an adjustable self-locking structure of a wire clamp includes a main body 1, a driven part 2 is rotatably provided on the main body 1 through a first rotating shaft 21, an operating part 3 is rotatably provided on the top of the driven part 2 through a second rotating shaft 31, the operating part 3 is slidably provided with the main body 1, a movable wire clamping part 4 is rotatably provided on the driven part 2 through a third rotating shaft 41, a fixed wire clamping part 5 fixed to the main body 1 is provided at the bottom of the movable wire clamping part 4, and further includes:

[0032] The limiting component is arranged on the fixed wire clamping part 5, and is used to fix the movable wire clamping part 4 and the fixed wire clamping part 5, and can limit the moving distance of the movable wire clamping part 4 relative to the fixed wire clamping part 5. When initially clamping the cable, the movable wire clamping part 4 can be slightly loosened, and then the wire clamp can be moved;

[0033] The anti-return assembly is arranged on the fixed wire clamping part 5 and is used to limit the movement of the movable wire clamping part 4;

[0034] It includes a non-return driving part 6 which is rotatably arranged in the fixed wire clamping part 5 and connected to the limit assembly, one end of the non-return driving part 6 is connected to a non-return wheel 7, one side of the non-return wheel 7 is provided with a non-return plate 8 which is clamped with the non-return wheel 7, and the non-return plate 8 is connected to the movable wire clamping part 4;

[0035] Initially, the anti-return plate 8 and the anti-return wheel 7 are staggered with each other. After determining the cable clamping position, the anti-return driving part 6 can be pushed to drive the anti-return wheel 7 to engage with the anti-return plate 8. When the movable wire clamping part 4 moves downward, the anti-return plate 8 will be driven to move downward along the anti-return wheel 7, and the anti-return wheel 7 can prevent the anti-return plate 8 from moving upward. After the tension on the operating part 3 is removed, the movable wire clamping part 4 can be prevented from moving upward, so that the wire clamp can keep clamping the cable.

[0036] Further, the limiting assembly includes a limiting plate 9 rotatably arranged on the fixed clamping part 5 and a positioning assembly 10 inserted on the limiting plate 9, the positioning assembly 10 is movably arranged on the movable clamping part 4, and the anti-reverse driving part 6 is fixedly connected to the limiting plate 9;

[0037] Initially, the limit plate 9 is not connected to the positioning assembly 10 and faces other directions. After the cable is placed between the fixed wire clamping part 5 and the movable wire clamping part 4, the limit plate 9 is rotated counterclockwise and the positioning assembly 10 is pressed inward. After the limit plate 9 is facing upward, the positioning assembly 10 is released so that the positioning assembly 10 is inserted into the limit plate 9 to complete the fixation. The limit plate 9 can first be used as a baffle to prevent the cable from falling off, and the positioning assembly 10 can also slide up and down on the limit plate 9 to a certain extent. When clamping the cable at the beginning, the clamping position can be adjusted. During the adjustment, the limit plate 9 still maintains the role of the baffle, and there is no need to worry about the cable falling off.

[0038] Furthermore, the limit plate 9 includes a sleeve plate 91 fixedly connected to the non-return driving part 6, a vertical plate 92 is fixedly arranged on the top of the sleeve plate 91, a limit groove 93 is provided on the vertical plate 92, the positioning assembly 10 is located in the limit groove 93, and an adjustment part 11 is also provided on the top of the vertical plate 92, and the movable end of the adjustment part 11 is located in the limit groove 93;

[0039] The movable clamping part 4 is provided with a groove, and the positioning assembly 10 includes a positioning spring 102 located in the groove, and a positioning protrusion 101 is provided at one end of the positioning spring 102, and the positioning protrusion 101 is inserted into the limiting groove 93;

[0040] After placing the cable between the two wire clamping parts, the positioning protrusion 101 can be pressed inward to make it shrink inward, and then the limiting plate 9 can be rotated counterclockwise to make it vertical upward, and then the positioning protrusion 101 can be released. The positioning protrusion 101 will be inserted into the limiting groove 93 under the elastic force of the positioning spring 102, thereby limiting the entire limiting plate 9, and the adjusting part 11 can adjust the length of the limiting groove 93, so as to adjust the moving distance of the positioning protrusion 101, that is, to limit the moving distance of the movable wire clamping part 4.

[0041] Furthermore, the adjusting part 11 includes a threaded rod 111 rotatably arranged on the top of the vertical plate 92, a fixing frame 113 is sleeved on the threaded rod 111, and a limiting slider 112 is arranged at one end of the fixing frame 113 away from the threaded rod 111, and the limiting slider 112 is located in the limiting groove 93;

[0042] By rotating the threaded rod 111 , the fixing frame 113 is driven to move up and down, thereby driving the limiting slider 112 to slide in the limiting groove 93 , thereby adjusting the length of the limiting groove 93 .

[0043] Further, the anti-return driving part 6 includes a fixed sleeve 61 connected to the limit plate 9, a locking ring 62 is fixedly arranged in the fixed sleeve 61, a thrust ring 63 is arranged at one end of the locking ring 62, and the thrust ring 63 is slidably connected to the locking ring 62 through a first slide plate 632, a rotating ring 64 is arranged at the other end of the locking ring 62, and a force ring 65 is rotatably arranged at one end of the rotating ring 64 away from the locking ring 62 through a first fixed shaft 652, and the force ring 65 is slidably connected to the fixed sleeve 61 through a second slide plate 651, a push rod 66 is arranged on the second force ring 65, and one end of the push rod 66 away from the force ring 65 is connected to the anti-return wheel 7, and a reset spring 67 sleeved on the push rod 66 is arranged on the inner wall assembly of the force ring 65 and the fixed sleeve 61;

[0044] By pressing the thrust ring 63 inward, the thrust ring 63 pushes the rotating ring 64 along the locking ring 62. While driving the force ring 65 to move, the rotating ring 64 will also rotate, thereby being engaged with the locking ring 62. At this time, the anti-return wheel 7 can be pushed by the push rod 66, so that the anti-return wheel 7 and the anti-return plate 8 are in the same plane and engaged.

[0045] Furthermore, a plurality of deep grooves 621 and shallow grooves 622 are provided at one end of the locking ring 62 close to the rotating ring 64, and the deep grooves 621 and the shallow grooves 622 are spaced apart from each other. A plug rod 641 is provided on the rotating ring 64 to be inserted into the deep groove 621 or the shallow groove 622. At the beginning, the plug rod 641 is inserted into the deep groove 621, and the check wheel 7 and the check plate 8 are staggered. When the plug rod 641 is inserted into the shallow groove 622, the check wheel 7 will move forward and be on the same plane as the check plate 8. A sawtooth 631 matching with the plug rod 641 is provided on the thrust ring 63. When the plug rod 641 is located in the deep groove 621 or the shallow groove 622, the tip of the plug rod 641 is facing the oblique edge of the sawtooth 631, so that when the thrust ring 63 pushes the rotating When the ring 64 is in engagement with the deep groove 621 or the shallow groove 622, the insertion rod 641 will slide and rotate along the oblique side of the serration 631 and move to the middle of the serration 631. Here, since the thrust ring 63 is limited by the first slide plate 632 and the locking ring 62, the thrust ring 63 will only slide back and forth along the locking ring 62 and will not rotate. Similarly, the force ring 65 is slidably connected to the fixed sleeve 61 through the second slide plate 651, and the force ring 65 will not rotate. This is mainly to cooperate with the non-return structure behind. At the same time, the insertion rod 641 will change its position. If it was originally inserted in the deep groove 621, it will move to the bottom of the shallow groove 622, and vice versa, thereby completing one press and one change of state.

[0046] Further, the anti-return wheel 7 includes a wheel disc 71 connected to the push rod 66, and a movable groove is opened on the wheel disc 71. A anti-return block 72 is rotatably arranged in the movable groove through a second fixed shaft 73. The bottom end of the anti-return block 72 is connected to the inner wall of the movable groove through an elastic member 74, and the anti-return block 72 is engaged with the anti-return plate 8.

[0047] The anti-return plate 8 is provided with an upwardly inclined slot, that is, the bottom of the slot is a plane and the top is an inclined surface, so that when the anti-return plate 8 moves downward, the anti-return block 72 on the anti-return wheel 7 can slide along the slot and deflect inwardly under the pressure of the slot, so as to facilitate movement from one slot to another.

[0048] Regarding the anti-return function, what was said before will be used here. The force ring 65 is slidably connected to the fixed sleeve 61 through the second slide plate 651. When the anti-return plate 8 wants to move upward, the anti-return block 72 will be against the bottom of the slot to limit the anti-return plate 8. The anti-return plate 8 applies force to the anti-return wheel 7 to rotate the anti-return wheel 7, and the anti-return wheel 7 rotates synchronously with the anti-return drive part 6. In order to rotate the anti-return wheel 7, the anti-return drive part 6 must be driven to rotate, and the anti-return drive part 6 is fixedly connected to the limit plate 9, which is clamped by the positioning assembly 10. Therefore, the entire anti-return drive part 6 will be limited, thereby preventing the anti-return wheel 7 from rotating, and the anti-return plate 8 cannot move upward.

[0049] Furthermore, a lifting platform 81 slidably connected to the main body 1 is provided on the inner side of the movable clamping part 4, a slide groove is provided on the lifting platform 81, and a transverse sliding block 42 sliding in the slide groove is provided on the movable clamping part 4, and a connecting rod 82 is provided at one end of the lifting platform 81, and the end of the connecting rod 82 away from the lifting platform 81 passes through the main body 1 and is connected to the anti-return plate 8;

[0050] When the movable wire clamping part 4 moves up and down, the transverse sliding block 42 will slide in the slide groove on the lifting platform 81, thereby driving the entire lifting platform 81 to move up and down, so that the anti-return plate 8 can be driven to move up and down through the connecting rod 82.

[0051] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

Claims

1. An adjustable self-locking structure of a wire clamp, comprising a main body (1), wherein the main body (1) is provided with a driven part (2) rotatably via a first rotating shaft (21), an operating part (3) is rotatably provided at the top of the driven part (2) via a second rotating shaft (31), the operating part (3) is slidably provided with the main body (1), a movable wire clamping part (4) is rotatably provided on the driven part (2) via a third rotating shaft (41), a fixed wire clamping part (5) fixed to the main body (1) is provided at the bottom of the movable wire clamping part (4), and the characteristics are as follows: Also includes: A limiting assembly is arranged on the fixed wire clamping part (5) and is used for fixing the movable wire clamping part (4) and the fixed wire clamping part (5); The anti-return assembly is arranged on the fixed wire clamping part (5) and is used to limit the movement of the movable wire clamping part (4). The anti-return assembly comprises an anti-return driving part (6) which is rotatably arranged in the fixed wire clamping part (5) and connected to the limit assembly. One end of the anti-return driving part (6) is connected to a anti-return wheel (7). One side of the anti-return wheel (7) is provided with an anti-return plate (8) which is clamped with the anti-return wheel (7). The anti-return plate (8) is connected to the movable wire clamping part (4).

2. The adjustable wire gripper self-locking structure according to claim 1, characterized in that: The limiting assembly comprises a limiting plate (9) rotatably arranged on the fixed wire clamping part (5) and a positioning assembly (10) inserted on the limiting plate (9); the positioning assembly (10) is movably arranged on the movable wire clamping part (4); and the anti-return driving part (6) is fixedly connected to the limiting plate (9).

3. The adjustable wire gripper self-locking structure according to claim 2, characterized in that: The limit plate (9) comprises a sleeve plate (91) fixedly connected to the anti-return driving part (6); a vertical plate (92) is fixedly arranged on the top of the sleeve plate (91); a limit groove (93) is provided on the vertical plate (92); the positioning assembly (10) is located in the limit groove (93); an adjustment part (11) is also provided at the top of the vertical plate (92); and a movable end of the adjustment part (11) is located in the limit groove (93).

4. The adjustable wire gripper self-locking structure according to claim 3, characterized in that: The movable wire clamping part (4) is provided with a groove, and the positioning assembly (10) comprises a positioning spring (102) located in the groove, and a positioning protrusion (101) is provided at one end of the positioning spring (102), and the positioning protrusion (101) is inserted into the limiting groove (93).

5. The adjustable self-locking structure of the wire gripper according to claim 3, characterized in that: The adjusting portion (11) comprises a threaded rod (111) rotatably arranged on the top of the vertical plate (92); a fixing frame (113) is sleeved on the threaded rod (111); a limiting slider (112) is arranged at one end of the fixing frame (113) away from the threaded rod (111); and the limiting slider (112) is located in the limiting groove (93).

6. The adjustable wire gripper self-locking structure according to claim 1, characterized in that: The anti-return driving part (6) comprises a fixed sleeve (61) connected to the limit plate (9), a locking ring (62) is fixedly arranged in the fixed sleeve (61), a thrust ring (63) is arranged at one end of the locking ring (62), and the thrust ring (63) is slidably connected to the locking ring (62) through a first slide plate (632), a rotating ring (64) is arranged at the other end of the locking ring (62), and a force ring (65) is rotatably arranged at the end of the rotating ring (64) away from the locking ring (62) through a first fixed shaft (652), and the force ring (65) is slidably connected to the fixed sleeve (61) through a second slide plate (651), a push rod (66) is arranged on the second force ring (65), and the end of the push rod (66) away from the force ring (65) is connected to the anti-return wheel (7), and a reset spring (67) sleeved on the push rod (66) is arranged between the force ring (65) and the inner wall component of the fixed sleeve (61).

7. The adjustable wire gripper self-locking structure according to claim 6, characterized in that: The locking ring (62) is provided with a plurality of deep grooves (621) and shallow grooves (622) at one end close to the rotating ring (64), and the deep grooves (621) and the shallow grooves (622) are arranged at intervals from each other. The rotating ring (64) is provided with an insertion rod (641) inserted into the deep groove (621) or the shallow groove (622), and the thrust ring (63) is provided with saw teeth (631) matched with the insertion rod (641).

8. The adjustable self-locking structure of the wire gripper according to claim 6, characterized in that: The non-return ring (8) comprises a wheel disc (71) connected to the push rod (66), a movable groove is provided on the wheel disc (71), a non-return block (72) is rotatably arranged in the movable groove via a second fixed shaft (73), the bottom end of the non-return block (72) is connected to the inner wall of the movable groove via an elastic member (74), and the non-return block (72) is engaged with the non-return plate (8).

9. The adjustable self-locking structure of the wire gripper according to claim 8, characterized in that: A lifting platform (81) slidably connected to the main body (1) is arranged on the inner side of the movable wire clamping part (4); a sliding groove is provided on the lifting platform (81); a transverse sliding block (42) sliding in the sliding groove is provided on the movable wire clamping part (4); a connecting rod (82) is arranged at one end of the lifting platform (81); an end of the connecting rod (82) away from the lifting platform (81) passes through the main body (1) and is connected to the anti-return plate (8).

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