Safe anti-drop cable clamp

Abstract

The utility model discloses a safe anti-drop cable clamp, which comprises a shell, a protective sleeve, a first pressing assembly, a second pressing assembly and a third pressing assembly, an accommodating cavity is arranged in the shell, and through holes communicated with the accommodating cavity are arranged on the side walls of the two ends of the shell. The protective sleeves are installed in the through holes, and the two protective sleeves correspond to the through holes in a one-to-one mode. The two first pressing assemblies are symmetrically arranged in the containing cavity. The multiple second pressing assemblies are arranged in the containing cavity in an up-down staggered mode. The third pressing assemblies and the second pressing assemblies are arranged in a paired mode and correspond to each other in a one-to-one mode. And the first pressing assembly, the second pressing assembly and the third pressing assembly extrude and fix one section of the cable to be clamped in the accommodating cavity in a staggered manner. The safe anti-drop cable clamp solves the problems that the anti-drop effect is not ideal, a cable cannot be firmly fixed on the side wall of a mine hole or a working vehicle, the cable is very easy to wear after shaking and slipping, and large potential safety hazards exist in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of cable clamps, in particular to a safety anti-dropping cable clamp. Background Art

[0002] In the prior art, the utility model patent with publication number CN216121592U discloses a C-type anti-skid cable clamp device for mining, including a base, a fixed ring is arranged on one side of the base, an upper clamping ring is rotatably connected to one end above the fixed ring, a locking assembly is rotatably arranged on one end of the upper clamping ring, a lower clamping ring is rotatably arranged on one end below the fixed ring, a clamping groove is provided on one end of the lower clamping ring, a plurality of anti-skid convex balls are arranged on the inner sides of the fixed ring, the upper clamping ring and the lower clamping ring, and a plurality of anti-skid convex balls are arranged on the inner sides of the fixed ring, the upper clamping ring and the lower clamping ring. When a C-type anti-skid cable clamp device for mining in the patent technical solution clamps the cable through the fixed ring, the upper clamping ring and the lower clamping ring, the anti-skid convex balls can play a good anti-skid role, avoiding the problem of cable sliding when clamping the cable. Although the anti-skid convex balls in the comparative documents can play a certain role in preventing the cable from slipping, they are still prone to falling off when the cable is subjected to large axial force. The existing technology also uses bolt pressure covers to install cables. When the cable shakes and the bolts loosen, the cable is prone to slipping, posing a major safety hazard.

[0003] Therefore, it is necessary to develop a safe anti-drop cable clamp for the above-mentioned defects. Utility Model Content

[0004] The utility model aims to provide a safe anti-dropping cable clamp, which can solve the problems of unsatisfactory anti-dropping effect in the prior art, easy wear and tear after the cable shakes and slips, and great safety hazards.

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

[0006] The utility model discloses a safety anti-drop cable clamp, comprising a shell, a protective cover, a first clamping assembly, a second clamping assembly and a third clamping assembly. The shell is provided with a housing cavity, and side walls at both ends of the shell are provided with through holes connected with the housing cavity; the protective cover is installed in the through holes, and two protective covers are provided, and correspond one to one with the through holes; two first clamping assemblies are symmetrically provided in the housing cavity; a plurality of second clamping assemblies are staggered up and down in the housing cavity; the third clamping assembly is paired with the second clamping assembly and corresponds one to one with the second clamping assembly; the first clamping assembly, the second clamping assembly and the third clamping assembly interlace and squeeze a section of the cable to be clamped and fix it in the housing cavity.

[0007] Furthermore, the outer shell includes an upper shell and a lower shell, one side of the upper shell is hinged to the lower shell, and the other side is detachably connected to the lower shell; the accommodating cavity and the through hole are both arranged between the upper shell and the lower shell; a plurality of the second clamping assemblies are staggeredly installed on the upper shell and the lower shell; the first clamping assembly includes two relatively arranged first clamping monomers, and the two first clamping monomers are respectively installed on the upper shell and the lower shell.

[0008] Furthermore, the first clamping unit includes a first sliding column, a first clamping spring and a first clamping block, one end of the first sliding column is a free end, and the other end is fixed to the upper shell or the lower shell; the first clamping block is slidably sleeved on the first sliding column and abuts against the cable to be clamped; the first clamping spring is sleeved on the first sliding column and is arranged between the first clamping block and the upper shell or the lower shell.

[0009] Furthermore, the third clamping assembly includes a third sliding column, a third clamping spring and a third clamping block, one end of the third sliding column is a free end, and the other end is fixed to the upper shell or the lower shell, and the length of the third sliding column is greater than the length of the first sliding column; the third clamping spring is sleeved on the third sliding column and is arranged between the third clamping block and the upper shell or the lower shell; the third clamping block is slidably sleeved on the third sliding column and has the same structure as the first clamping block.

[0010] Furthermore, the second clamping assembly includes a support column and a second clamping block, one end of the support column is a free end, and the other end is fixed to the lower shell or the upper shell, and the length of the support column is less than the length of the first sliding column; the second clamping block is fixed to the free end of the support column and has the same structure as the first clamping block.

[0011] Furthermore, the protective cover comprises two symmetrically arranged protective monomers, which are respectively connected to the upper shell and the lower shell; any of the protective monomers comprises a plurality of concentrically arranged and similarly shaped sleeves, and adjacent sleeves are detachably connected; the outer diameter of the sleeve located on the inner side is equal to the inner diameter of the sleeve located on the outer side; and the sleeve is a semicircular ring structure.

[0012] Furthermore, a first limit platform for limiting the movement range of the first pressing block is provided on the free end of the first sliding column; and a third limit platform for limiting the movement range of the third pressing block is provided on the free end of the third sliding column.

[0013] Furthermore, the first clamping block is provided with an arc-shaped groove for fixing the cable to be clamped; an elastic pad is provided in the groove; the distance between the lowest point of the groove on the second clamping block and the upper shell or the lower shell is the first reference distance, and the shortest distance between the inner surface of the sleeve with the largest diameter and the upper shell or the lower shell is the second reference distance, and the first reference distance is smaller than the second reference distance.

[0014] Furthermore, a locking protrusion is provided on the outer surface of the sleeve, and a first locking groove is provided on the inner surface; adjacent sleeves are fixed by the locking protrusion and the first locking groove; and second locking grooves adapted to the locking protrusion are provided on both the upper shell and the lower shell.

[0015] Furthermore, the lower shell is provided with a mounting hole for passing a fastening bolt, and the fastening bolt fixes the outer shell to the side wall of the mine car or mine tunnel; the upper shell and the lower shell are detachably connected by a locking bolt, and the locking bolt passes through the upper shell and is threadedly connected to the lower shell.

[0016] Compared with the prior art, the beneficial technical effects of the utility model are:

[0017] The utility model discloses a safety anti-slip cable clamp, which can interlace and squeeze the cables to be clamped in the accommodating cavity through the staggered cooperation of the second clamping component and the third clamping component, so as to ensure that the cables will not slip off, and can firmly fix the cables to the mine car or the side wall of the mine cave, so as to avoid the safety problems caused by the cable wear and leakage caused by the mine car rolling caused by the shaking and sliding of the cables. Through the provision of the protective cover, the two sides of the position where the cable needs to be fixed can be protected and preliminarily limited, so as to avoid the cable bending at the connection position and the damage of the cable, and ensure the safety of the power transmission process. Through the cooperation of the first clamping component and the protective cover, the cable can be further limited and fixed, and then the cable can be protected.

[0018] In addition, through the structural arrangement of the first clamping assembly, the second clamping assembly, the third clamping assembly and the protective cover, the device can be adapted to the fixed installation of cables of various specifications and models, with a wider range of applications and convenient and quick installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model safety anti-drop cable clamp;

[0021] Figure 2 This is a schematic diagram of the top view of the structure of the safety anti-drop cable clamp of the utility model;

[0022] Figure 3 For along Figure 2The cross-sectional structure diagram along the AA line;

[0023] Figure 4 For along Figure 2 The cross-sectional structure diagram of the middle BB line;

[0024] Figure 5 For along Figure 2 Cross-sectional structural diagram of the center CC line;

[0025] Figure 6 This is a schematic diagram of the cross-sectional structure of the utility model safety anti-drop cable clamp after clamping the cable;

[0026] Figure 7 for Figure 3 Schematic diagram of the enlarged structure at D in the middle;

[0027] Figure 8 for Figure 4 Schematic diagram of the enlarged structure at E in the middle.

[0028] Explanation of the reference numerals: 1. first clamping unit; 2. second clamping assembly; 3. third clamping assembly; 4. outer shell; 5. protective unit; 6. cable to be clamped; 11. first sliding column; 12. first clamping spring; 13. first clamping block; 21. supporting column; 22. second clamping block; 31. third sliding column; 32. third clamping spring; 33. third clamping block; 41. upper shell; 42. lower shell; 51. sleeve; 131. groove; 411. accommodating chamber; 412. through hole; 413. second card slot; 421. mounting hole; 511. card bulge; 512. first card slot. DETAILED DESCRIPTION

[0029] The core of the utility model is to provide a safe anti-dropping cable clamp, which can solve the problems of unsatisfactory anti-dropping effect in the prior art, easy wear and tear caused by cable shaking and slipping, and great safety hazards.

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0032] Please also read Figures 1 to 8 Now, a specific implementation of a safety anti-slip cable clamp provided by the utility model is described. The safety anti-slip cable clamp includes a shell 4, a protective cover, a first clamping assembly, a second clamping assembly 2 and a third clamping assembly 3. A housing 4 is provided in the shell 4, and through holes 412 communicating with the housing 411 are provided on both sides of the housing 411. The protective cover is installed in the through hole 412, and two protective covers are provided, and they correspond one to one with the through holes 412. Two first clamping assemblies are symmetrically provided in the housing 411. Several second clamping assemblies 2 are staggered up and down in the housing 411. The third clamping assembly 3 is paired with the second clamping assembly 2 and corresponds one to one with the second clamping assembly 2. The first clamping assembly, the second clamping assembly 2 and the third clamping assembly 3 interlace and squeeze a section of the cable 6 to be clamped and fix it in the housing 411.

[0033] In a specific embodiment of the utility model, the housing 4 includes an upper housing 41 and a lower housing 42, one side of the upper housing 41 is hinged to the lower housing 42, and the other side is detachably connected to the lower housing 42. The accommodating cavity 411 and the through hole 412 are both arranged between the upper housing 41 and the lower housing 42. A plurality of second clamping assemblies 2 are staggeredly installed on the upper housing 41 and the lower housing 42. The first clamping assembly includes two first clamping monomers 1 arranged opposite to each other, and the two first clamping monomers 1 are respectively installed on the upper housing 41 and the lower housing 42.

[0034] For illustration purposes, see Figure 1 , take any point in space as the origin, take the setting direction of the upper shell 41 relative to the lower shell 42 as the Z axis, take the setting direction of the protective cover relative to the outer shell 4 as the Y axis, and take the straight line direction perpendicular to both the Y axis and the Z axis as the X axis to establish a rectangular coordinate system, wherein the XY plane is a horizontal plane, the direction indicated on the horizontal plane is the horizontal direction, and the direction indicated by the Z axis is the vertical direction.

[0035] In this embodiment, the lower shell 42 is provided with a mounting hole 421 for fastening bolts to pass through, and the fastening bolts fix the outer shell 4 to the side wall of the mine car or the mine. The upper shell 41 and the lower shell 42 are detachably connected by a locking bolt, and the locking bolt passes through the upper shell 41 and is threadedly connected to the lower shell 42.

[0036] In a specific embodiment of the present invention, the first compression unit 1 includes a first sliding column 11, a first compression spring 12 and a first compression block 13. One end of the first sliding column 11 is a free end, and the other end is fixed to the upper shell 41 or the lower shell 42. The first compression block 13 is slidably sleeved on the first sliding column 11 and abuts against the cable to be clamped 6. The first compression spring 12 is sleeved on the first sliding column 11 and is arranged between the first compression block 13 and the upper shell 41 or the lower shell 42.

[0037] In a specific embodiment of the present utility model, the third clamping assembly 3 includes a third sliding column 31, a third clamping spring 32 and a third clamping block 33. One end of the third sliding column 31 is a free end, and the other end is fixed to the upper shell 41 or the lower shell 42. The length of the third sliding column 31 is greater than the length of the first sliding column 11. The third clamping spring 32 is sleeved on the third sliding column 31 and is arranged between the third clamping block 33 and the upper shell 41 or the lower shell 42. The third clamping block 33 is slidably sleeved on the third sliding column 31 and has the same structure as the first clamping block 13.

[0038] In this embodiment, a first limit platform is provided on the free end of the first sliding column 11 for limiting the movement range of the first pressing block 13. A third limit platform is provided on the free end of the third sliding column 31 for limiting the movement range of the third pressing block 33. Here, as long as the related performance functions of the first sliding column 11 and the third sliding column 31 can be achieved, they are within the scope of protection of this application document.

[0039] In a specific embodiment of the present invention, the second clamping assembly 2 includes a support column 21 and a second clamping block 22, one end of the support column 21 is a free end, and the other end is fixed to the lower shell 42 or the upper shell 41, and the length of the support column 21 is less than the length of the first sliding column 11. The second clamping block 22 is fixed to the free end of the support column 21 and has the same structure as the first clamping block 13.

[0040] In a specific embodiment of the present invention, the protective cover includes two symmetrically arranged protective monomers 5, and the two protective monomers 5 are respectively connected to the upper shell 41 and the lower shell 42. Any protective monomer 5 includes a plurality of concentrically arranged and similarly shaped sleeves 51, and adjacent sleeves 51 are detachably connected. The outer diameter of the sleeve 51 located on the inner side is equal to the inner diameter of the sleeve 51 located on the outer side. The sleeve 51 is a semicircular ring structure, and the sleeve 51 is made of elastic material, and can be made of rubber material.

[0041] In this embodiment, the first clamping block 13 is provided with an arc-shaped groove 131 for fixing the cable 6 to be clamped. An elastic pad is provided in the groove 131. The distance between the lowest point of the groove 131 on the second clamping block 22 and the upper shell 41 or the lower shell 42 is the first reference distance, and the shortest distance between the inner surface of the sleeve 51 with the largest diameter and the upper shell 41 or the lower shell 42 is the second reference distance, and the first reference distance is smaller than the second reference distance.

[0042] In this embodiment, the outer surface of the sleeve 51 is provided with a protrusion 511, and the inner surface is provided with a first slot 512, and adjacent sleeves 51 are fixed by the protrusion 511 and the first slot 512. The upper shell 41 and the lower shell 42 are both provided with a second slot 413 adapted to the protrusion 511.

[0043] Compared with the prior art, this type of safety anti-slip cable clamp interlacedly squeezes the cable 6 to be clamped in the accommodating chamber 411 through the staggered cooperation of the second clamping component 2 and the third clamping component 3, ensuring that the cable will not slip off, and can firmly fix the cable to the mine car or the side wall of the mine cave, avoiding the safety problems caused by the cable wear and leakage caused by the mine car rolling due to the shaking and sliding of the cable. Through the setting of the protective cover, the two sides of the position where the cable needs to be fixed can be protected and preliminarily limited, avoiding the cable bending at the connection position and causing cable damage, thereby ensuring the safety of the power transmission process. Through the cooperation of the first clamping component and the protective cover, the cable can be further limited and fixed, and then the cable can be protected. Through the structural setting of the first clamping component, the second clamping component 2, the third clamping component 3 and the protective cover, the device can be adapted to the fixed installation of cables of various specifications and models, with a wider range of applications and convenient and quick installation.

[0044] The working process of the utility model safety anti-drop cable clamp is as follows: in the initial state, the upper shell 41 and the lower shell 42 are in the open state, and a plurality of protective monomers 5 are respectively engaged in the positions corresponding to the through holes 412 in the upper shell 41 and the lower shell 42, and the first clamping block 13 and the third clamping block 33 are pushed by the first clamping spring 12 and the third clamping spring 32 to abut against the first limit platform and the third limit platform. The cable 6 to be clamped is horizontally placed in the groove 131 of the first clamping monomer 1, the second clamping block 22 and the third clamping block 33 in the lower shell 42, and according to the size of the cable 6 to be clamped, the sleeve 51 with a smaller aperture is removed, and the cable 6 to be clamped is clamped in the sleeve 51 of a suitable size. Turn the upper shell 41 over and snap it to the lower shell 42, and fix the upper shell 41 and the lower shell 42 with the locking bolts. At this time, the first compression spring 12 is squeezed, and the first compression block 13 symmetrically applies the same force on both sides of the cable; the third compression spring 32 is squeezed, and the third compression block 33 abuts against the cable under the action of the third compression spring 32, and squeezes the cable against the second compression block 22. The staggered third compression blocks 33 push the cable up and down to limit the position. Finally, according to the needs, fix the outer shell 4 to the required position by tightening the bolts to complete the cable fixing work.

[0045] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0046] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A safety anti-drop cable clamp, characterized by: The invention comprises a shell (4), a protective sleeve, a first clamping assembly, a second clamping assembly (2) and a third clamping assembly (3); the shell (4) is provided with a receiving cavity (411), and the side walls at both ends of the shell (4) are provided with through holes (412) connected with the receiving cavity (411); the protective sleeve is installed in the through holes (412), and two protective sleeves are provided and correspond one to one with the through holes (412); two first clamping assemblies are symmetrically provided in the receiving cavity (411); a plurality of second clamping assemblies (2) are staggered up and down in the receiving cavity (411); the third clamping assembly (3) is matched with the second clamping assembly (2) and corresponds one to one with the second clamping assembly (2); the first clamping assembly, the second clamping assembly (2) and the third clamping assembly (3) interlace and squeeze a section of the cable (6) to be clamped and fix it in the receiving cavity (411).

2. The safety anti-drop cable clamp according to claim 1 is characterized in that: The outer shell (4) comprises an upper shell (41) and a lower shell (42), one side of the upper shell (41) is hinged to the lower shell (42), and the other side is detachably connected to the lower shell (42); the accommodating cavity (411) and the through hole (412) are both arranged between the upper shell (41) and the lower shell (42); a plurality of the second clamping assemblies (2) are staggeredly installed on the upper shell (41) and the lower shell (42); the first clamping assembly comprises two first clamping monomers (1) arranged opposite to each other, and the two first clamping monomers (1) are respectively installed on the upper shell (41) and the lower shell (42).

3. The safety anti-drop cable clamp according to claim 2 is characterized in that: The first clamping unit (1) comprises a first sliding column (11), a first clamping spring (12) and a first clamping block (13); one end of the first sliding column (11) is a free end, and the other end is fixed to the upper shell (41) or the lower shell (42); the first clamping block (13) is slidably sleeved on the first sliding column (11) and abuts against the cable (6) to be clamped; the first clamping spring (12) is sleeved on the first sliding column (11) and is arranged between the first clamping block (13) and the upper shell (41) or the lower shell (42).

4. The safety anti-drop cable clamp according to claim 3 is characterized in that: The third clamping assembly (3) includes a third sliding column (31), a third clamping spring (32) and a third clamping block (33); one end of the third sliding column (31) is a free end, and the other end is fixed to the upper shell (41) or the lower shell (42); the length of the third sliding column (31) is greater than the length of the first sliding column (11); the third clamping spring (32) is sleeved on the third sliding column (31) and is arranged between the third clamping block (33) and the upper shell (41) or the lower shell (42); the third clamping block (33) is slidably sleeved on the third sliding column (31) and has the same structure as the first clamping block (13).

5. The safety anti-drop cable clamp according to claim 4 is characterized in that: The second clamping assembly (2) comprises a support column (21) and a second clamping block (22), one end of the support column (21) is a free end, and the other end is fixed to the lower shell (42) or the upper shell (41), and the length of the support column (21) is less than the length of the first sliding column (11); the second clamping block (22) is fixed to the free end of the support column (21) and has the same structure as the first clamping block (13).

6. The safety anti-drop cable clamp according to claim 5, characterized in that: The protective sleeve comprises two symmetrically arranged protective monomers (5), the two protective monomers (5) being connected to the upper shell (41) and the lower shell (42) respectively; any of the protective monomers (5) comprises a plurality of concentrically arranged sleeves (51) of similar shape, and adjacent sleeves (51) are detachably connected; the outer diameter of the sleeve (51) located on the inner side is equal to the inner diameter of the sleeve (51) located on the outer side; and the sleeve (51) is a semicircular ring structure.

7. The safety anti-drop cable clamp according to claim 4, characterized in that: A first limit platform for limiting the movement range of the first pressing block (13) is provided on the free end of the first sliding column (11); and a third limit platform for limiting the movement range of the third pressing block (33) is provided on the free end of the third sliding column (31).

8. The safety anti-drop cable clamp according to claim 6, characterized in that: The first clamping block (13) is provided with an arc-shaped groove (131) for fixing the cable (6) to be clamped; an elastic pad is provided in the groove (131); the distance between the lowest point of the groove (131) on the second clamping block (22) and the upper shell (41) or the lower shell (42) is a first reference distance, and the shortest distance between the inner surface of the sleeve (51) with the largest diameter and the upper shell (41) or the lower shell (42) is a second reference distance, and the first reference distance is smaller than the second reference distance.

9. The safety anti-drop cable clamp according to claim 6, characterized in that: The outer surface of the sleeve (51) is provided with a locking protrusion (511), and the inner surface is provided with a first locking groove (512); adjacent sleeves (51) are fixed by locking the locking protrusion (511) and the first locking groove (512); and the upper shell (41) and the lower shell (42) are both provided with a second locking groove (413) adapted to the locking protrusion (511).

10. The safety anti-drop cable clamp according to any one of claims 2 to 9, characterized in that: The lower shell (42) is provided with a mounting hole (421) for passing a fastening bolt, and the fastening bolt fixes the outer shell (4) to the side wall of the mine car or the mine cave; the upper shell (41) and the lower shell (42) are detachably connected by a locking bolt, and the locking bolt passes through the upper shell (41) and is threadedly connected to the lower shell (42).

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