Steel wire rope clamp

Abstract

The embodiment of the utility model provides a steel wire rope clamp which comprises an upper clamping plate, a lower clamping plate and calipers, and the calipers are of a rectangular block-shaped structure with a through arc-shaped groove formed in the side face. The upper clamping plate and the lower clamping plate are arranged in parallel, the bottom surface of the upper clamping plate and the top surface of the lower clamping plate are respectively connected with two calipers, and openings of the upper and lower calipers are opposite; the calipers are arranged at intervals in the length direction of the upper clamping plate. A locking screw is further hinged to the upper clamping plate, the locking screw penetrates through the lower clamping plate in the vertical state, and a locking nut is arranged at the bottom end of the locking screw for locking. According to the technical scheme, the two groups of parallel calipers are adopted to respectively clamp the two strands of steel wire ropes, so that the clamping of the steel wire ropes is firmer and more reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical manufacturing, in particular to a wire rope clamp. Background Art

[0002] The wire rope has very good tensile capacity and good flexibility, so it is widely used in production and life. When in use, it is often necessary to use a wire rope clamp to fix the end of the wire rope. For example, after folding the end of a single-strand wire rope back to form a loop, the folded part of the wire rope and the rear wire rope are brought together side by side and then inserted into the wire rope clamp and tightened. At this time, the two wire ropes are fixed together and will not slide relative to each other, and the front loop can be connected to other loops or equipment, heavy objects, etc.

[0003] The existing wire rope clamp usually consists of a pressing plate with two through holes and a U-shaped clip. The U-shaped clip is inserted into the pressing plate from the two through holes, and then the double-strand wire rope to be fixed is inserted into the U-shaped clip. The two legs of the U-shaped clip are pulled away from the pressing plate, so that the double-strand wire rope is firmly clamped. Then, a lock nut is used to lock the two legs of the U-shaped clip to the pressing plate, thus completing the clamping work of the wire rope.

[0004] In the process of implementing the present utility model, the inventor found that there are at least the following problems in the prior art:

[0005] Since the cross section of the double-strand wire rope is irregular after being brought together, and there is only one opening in the middle of the U-shaped clip, the wire rope cannot fill the middle opening of the U-shaped clip. The two wire ropes are close together by the extrusion force between them, and most of the wire rope is actually "suspended", that is, there are many gaps between the wire rope and the opening of the U-shaped clip around. At this time, it is easy to cause the clamping force provided by the clamp to be uneven on the wire rope, and the two strands of wire rope that are close together during use may shift, further resulting in insecure clamping. Therefore, how to improve the structure of the wire rope clamp so that it can provide a uniform clamping force to the wire rope and ensure firm clamping of the wire rope is a problem that needs to be solved. Summary of the Utility Model

[0006] The embodiment of the present utility model provides a wire rope clamp to solve the problems of uneven clamping force and insecure clamping of the existing clamp.

[0007] To achieve the above object, an embodiment of the present utility model provides a wire rope clamp, which includes an upper clamping plate, a lower clamping plate and calipers. The calipers are rectangular block structures with a through-arc-shaped groove opened on the side, and the diameter of the arc-shaped groove matches the outer diameter of the wire rope. The upper clamping plate and the lower clamping plate are arranged in parallel. Two calipers with openings downward are connected to the bottom surface of the upper clamping plate, and two calipers with openings upward are connected to the top surface of the lower clamping plate. And each caliper with an opening downward is opposite to a caliper with an opening upward in position. The calipers are arranged at intervals along the length direction of the upper clamping plate. The upper clamping plate is also hinged with a locking screw. A connection hole is opened on the lower clamping plate. When the locking screw is in a vertical state, it passes through the connection hole, and a locking nut is connected to the bottom end of the locking screw.

[0008] Further, the arc corresponding to the arc-shaped groove is a minor arc.

[0009] Further, the axial direction of the arc-shaped groove is perpendicular to the length direction of the upper clamping plate. In the direction along the axis of the arc-shaped groove, the width dimension of the caliper is the same as the width dimension of the upper clamping plate, and the dimension of the upper clamping plate is the same as the width dimension of the lower clamping plate.

[0010] Further, on the bottom surface of the arc-shaped groove, a plurality of first grooves are further provided, and the bottom surface of the first groove is an arc-shaped structure coaxial with the arc-shaped groove.

[0011] Further, there are two locking screws in total, and the two locking screws are respectively connected to both ends of the upper clamping plate.

[0012] Further, the connection hole on the left side penetrates the left side of the lower clamping plate, and the connection hole on the right side penetrates the right side of the lower clamping plate.

[0013] Further, the locking screw includes a locking screw body and a screw head end fixedly connected to the top of the locking screw body. The screw head end is a circular ring structure with a first through hole opened in the middle. The axial direction of the first through hole is perpendicular to the length direction of the locking screw body. Connection ends are respectively arranged at the left and right ends of the upper clamping plate. The connection ends are circular ring structures with a second through hole opened in the middle. The axial direction of the second through hole is consistent with the width direction of the upper clamping plate. An installation groove is further provided on the connection end, and the width of the installation groove matches the width of the screw head end. A connection pin passes through the first through hole and the second through hole, and an external thread is provided at the end of the connection pin. The end of the connection pin meshes with the locking nut.

[0014] Further, the caliper is detachably connected to the upper clamping plate through a connection bolt, and the caliper is detachably connected to the lower clamping plate through a connection bolt.

[0015] Further, the connecting bolt includes a connecting bolt body and a boss. The boss is fixedly connected to one end of the connecting bolt body. The other end of the connecting bolt body is a threaded end, which meshes with the locking nut. The cross-section of the boss is larger than that of the connecting bolt body, and the boss is connected to the caliper. An upper clamping plate bolt hole is provided on the upper clamping plate. The connecting bolt body located above sequentially passes through the caliper with an opening facing downwards and the upper clamping plate bolt hole. A lower clamping plate bolt hole is provided on the lower clamping plate. The connecting bolt body located below sequentially passes through the caliper with an opening facing downwards and the lower clamping plate bolt hole.

[0016] Further, a second groove is also provided on the bottom surface of the arc-shaped groove. The bottom surface of the second groove is an arc-shaped structure coaxial with the arc-shaped groove. The boss is fitted in the second groove, and one surface of the boss close to the threaded end is in contact with the bottom surface of the second groove. The surface of the boss away from the threaded end is an arc-shaped structure flush with the bottom surface of the arc-shaped groove.

[0017] The above technical solution has the following beneficial effects:

[0018] In this technical solution, instead of using a single U-shaped clip to clamp two steel wire ropes as in the prior art, a set of calipers is assigned to each steel wire rope. The inner diameter of the caliper matches the outer diameter of the steel wire rope, and the steel wire rope is fastened by pressing from above and below. In this way, the steel wire rope can be completely in contact with the inner side wall of the caliper around it, ensuring uniform stress. Moreover, the two steel wire ropes are no longer squeezed together, and the mutual dislocation of the squeezed steel wire ropes is also avoided, thus ensuring the firm and reliable clamping of the steel wire rope.

[0019] In addition, this technical solution also has the following characteristics:

[0020] 1. The caliper is detachably connected to the upper clamping plate and the lower clamping plate. When the diameters of the steel wire ropes are different, different specifications of calipers can be replaced to adapt to the steel wire ropes. Therefore, this steel wire rope fixture is flexible in application and has a wide range of applications, and can meet various different needs of users.

[0021] 2. In addition to making a loop by folding back the end of the steel wire rope as described above, this steel wire rope fixture can also be used for connecting two steel wire ropes with different diameters. At this time, only two sets of calipers with different specifications need to be configured according to the diameters of the steel wire ropes. Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0023] Figure 1 This is a schematic structural view of a wire rope clamp according to an embodiment of the present utility model;

[0024] Figure 2 This is a schematic structural view of a wire rope clamp according to an embodiment of the present utility model when the locking screw is opened outward;

[0025] Figure 3 This is a schematic structural view of the connection between the locking screw and the upper clamping plate according to an embodiment of the present utility model;

[0026] Figure 4 This is a schematic structural view of the connection between the caliper and the upper clamping plate according to an embodiment of the present utility model;

[0027] Figure 5 This is an application schematic view of a wire rope clamp according to an embodiment of the present utility model;

[0028] Reference numerals in the drawings: 10, upper clamping plate; 11, upper clamping plate bolt hole; 12, second through hole; 13, installation groove; 14, connecting pin shaft; 15, nut; 20, caliper; 21, arc groove; 30, locking screw; 31, locking screw body; 32, first through hole; 40, lower clamping plate; 41, connection hole; 51, connection bolt body; 52, convex platform; 53, first groove; 54, second groove; 100, wire rope. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0030] Such as Figure 1As shown in the figure, an embodiment of the present utility model provides a wire rope clamp, which includes an upper clamping plate 10, a lower clamping plate 40 and a caliper 20. The caliper 20 is a rectangular block structure with a through-arc-shaped groove 21 opened on the side surface, and the diameter of the arc-shaped groove 21 matches the outer diameter of the wire rope 100. The upper clamping plate 10 and the lower clamping plate 40 are arranged in parallel. Two calipers 20 with openings downward (i.e., the side surface with the arc-shaped groove 21 facing downward) are connected to the bottom surface of the upper clamping plate 10. Two calipers 20 with openings upward (i.e., the side surface with the arc-shaped groove 21 facing upward) are connected to the top surface of the lower clamping plate 40, and each caliper 20 with an opening downward is opposite to a caliper 20 with an opening upward in position. The calipers 20 are arranged at intervals along the length direction of the upper clamping plate 10. The upper clamping plate 10 is also hinged with a locking screw 30. A connecting hole 41 is opened on the lower clamping plate 40. When the locking screw 30 is in a vertical state, it passes through the connecting hole 41, and a locking nut is connected to the bottom end of the locking screw 30.

[0031] To solve the foregoing problems, in the embodiment of the present utility model, instead of using a single U-shaped clip to clamp two wire ropes 100 as in the prior art, a set of calipers 20 is allocated for each wire rope 100. An arc-shaped groove 21 is opened on one side surface of the caliper 20 (for example, for the caliper 20 installed on the upper clamping plate 10, its arc-shaped groove 21 is opened on the bottom surface, and the arc-shaped groove 21 penetrates through the front and rear side surfaces of the caliper 20 to both sides at the same time), and the diameter of the circle where the arc-shaped groove 21 is located is kept matching the outer diameter of the wire rope 100, that is, the diameter of the arc-shaped groove 21 is equal to or slightly smaller than the outer diameter of the wire rope 100. Then, by tightening the locking nut connected to the bottom end of the locking screw 30, the upper clamping plate 10 and the lower clamping plate 40 are pressed against each other, so that each wire rope 100 is fixed by a set of calipers 20. In this way, the periphery of the wire rope 100 can be completely attached to the inner side wall of the caliper 20 (i.e., the bottom surface of the arc-shaped groove 21) without gaps, thereby ensuring uniform force, and the two wire ropes 100 are no longer squeezed together, and the wire ropes 100 squeezed together are also prevented from moving relative to each other, ensuring the firm and reliable clamping of the wire rope 100. Figure 1 Further, the arc corresponding to the arc-shaped groove 21 is a minor arc, that is, the central angle corresponding to it is less than 180°. At this time, since the two calipers 20 opposite to each other up and down are both less than a semi-circle, after the upper clamping plate 10 and the lower clamping plate 40 are pressed together, since the chord height of the two arc-shaped grooves 21 is less than the radius, and the diameter of the wire rope 100 is basically the same as the diameter of the arc-shaped groove 21, the distance between the top surface of the arc-shaped groove 21 of the upper caliper 20 and the bottom surface of the arc-shaped groove 21 of the lower caliper 20 must be less than the diameter of the wire rope 100, so that the wire rope 100 is deformed to a certain extent, ensuring sufficient pressing force and avoiding loosening.

[0032]

[0033] ​Further, to ensure that the two strands of wire ropes 100 of the two groups of calipers 20 do not contact each other when fixed, they should be arranged in parallel, and the axial direction of the arc-shaped groove 21 should be perpendicular to the length direction of the upper clamping plate 10. At this time, the two strands of wire ropes 100 after being fixed are as Figure 5 shown, extending parallel in the direction perpendicular to the long side of the upper clamping plate 10; in addition, as Figure 1 shown, to ensure good fixing effect and facilitate processing, the upper clamping plate 10, the lower clamping plate 40 and the caliper 20 can have the same width, that is, in the direction along the axis of the arc-shaped groove 21, the front and rear edges of the caliper 20, the upper clamping plate 10 and the lower clamping plate 40 are aligned with each other.

[0034] Further, to increase friction and provide a more secure clamping force, a plurality of first grooves 53 can be provided on the bottom surface of the arc-shaped groove 21, and the first grooves 53 are also arc-shaped groove structures that penetrate into the bottom surface of the arc-shaped groove 21.

[0035] Further, theoretically, only one locking screw 30 is needed to clamp the upper clamping plate 10 and the lower clamping plate 40. However, to achieve a better tightening effect, it is preferred to set two locking screws 30, and the two locking screws 30 are respectively connected to both ends of the upper clamping plate 10. At this time, the two clamping plates are easier to keep parallel to each other, and the overall force is more uniform.

[0036] Further, the connection holes 41 do not adopt the form of ordinary drilling, but are preferably designed as the form with an open outside as Figure 2 shown, that is, the connection hole 41 on the left side penetrates the left side of the lower clamping plate 40, and the connection hole 41 on the right side penetrates the right side of the lower clamping plate 40. This design is more convenient for operation. When in use, the operator can first expand the two locking screws 30 to both sides to be in the state as Figure 2 shown, then place the two strands of wire ropes 100 into the predetermined position in the arc-shaped groove 21 of the caliper 20, and then fold the locking screws 30 back to the inside to return to the state as Figure 1 shown, and then tighten the locking nuts at the bottom ends of the locking screws 30 with a wrench.

[0037] Further, after adopting the form that the locking screw 30 can be expanded to the outside, in order to make the locking screw 30 can only swing in the left and right directions and will not move in the front and rear directions (that is, there is only one degree of freedom), the hinge structure between the upper clamping plate 10 and the locking screw 30 can be designed as Figure 3The shown appearance: The locking screw 30 includes a locking screw body 31 and a screw head end fixedly connected to the top of the locking screw body 31. The screw head end is an annular structure with a first through hole 32 opened in the middle. The axial direction of the first through hole 32 is perpendicular to the length direction of the locking screw body 31; connection ends are respectively arranged at the left and right ends of the upper clamping plate 10. The connection ends are annular structures with a second through hole 12 opened in the middle. The axial direction of the second through hole 12 is consistent with the width direction of the upper clamping plate 10, and the apertures of the first through hole 32 and the second through hole 12 are as identical as possible (slightly larger than the outer diameter of the connecting pin 14); meanwhile, mounting grooves 13 are also arranged at the front and middle positions of the connection ends. The width of the mounting grooves 13 matches the width of the screw head end, so that the screw head end can be embedded into the mounting grooves 13; afterwards, the connecting pin 14 with a nut 15 at one end penetrates through the first half of the second through hole 12, the first through hole 32 and the second half of the second through hole 12, thereby connecting the upper clamping plate 10 and the locking screw 30. Subsequently, the end of the connecting pin 14 is locked with a locking nut. At this time, the locking screw 30 can only swing within a plane perpendicular to the axis of the first through hole 32, which is convenient for the operator to quickly place the locking screw 30 into the connection hole 41.

[0038] Furthermore, in order to adapt to wire ropes 100 of different specifications, it is hoped that this technical solution can adapt to the wire rope 100 by replacing calipers 20 of different specifications, so that the wire rope fixture is flexible in application and wide in applicable range. For this reason, the calipers 20 should not be fixedly arranged on the upper clamping plate 10 or the lower clamping plate 40, but should be connected in a detachable manner, preferably by screwing.

[0039] Furthermore, as Figure 4 shown, the preferred screwing method is specifically as follows: The connecting bolt includes a connecting bolt body 51 and a boss 52. The boss 52 is fixedly connected to one end of the connecting bolt body 51. The other end of the connecting bolt body 51 is a threaded end, and the threaded end meshes with the locking nut. The cross section of the boss 52 is larger than that of the connecting bolt body 51, and the boss 52 is connected to the caliper 20; an upper clamping plate bolt hole 11 is opened on the upper clamping plate 10. The connecting bolt body 51 located above sequentially penetrates through the caliper 20 with the opening facing downwards and the upper clamping plate bolt hole 11; a lower clamping plate bolt hole is opened on the lower clamping plate 40. The connecting bolt body 51 located below sequentially penetrates through the caliper 20 with the opening facing downwards and the lower clamping plate bolt hole. When installing the caliper 20, first pass the connecting bolt through the bolt hole opened in the middle of the caliper 20 from bottom to top, so that the boss 52 abuts against the caliper 20 tightly. Afterwards, tighten the connecting bolt body 51 exposed from the upper clamping plate bolt hole 11 or the lower clamping plate bolt hole with a locking nut, so that the caliper 20 can be tightly attached to the bottom surface of the upper clamping plate 10 or the top surface of the lower clamping plate 40.

[0040] Furthermore, asFigure 4 As shown, in order to make the connection strength between the connecting bolt and the caliper 20 higher, the boss 52 can also be set to an arc shape, and a second groove 54 is formed on the bottom surface of the arc groove 21. The boss 52 is fitted into the second groove 54, so that the surface of the boss 52 close to the threaded end is firmly attached to the bottom surface of the second groove 54.

[0041] In the above detailed description, various features are combined in a single embodiment to simplify the present disclosure. This method of disclosure should not be construed as reflecting an intention that the embodiments of the claimed subject matter require more features than those clearly recited in each claim. On the contrary, as reflected in the appended claims, the present utility model is in a state with fewer features than all the features of the disclosed single embodiment. Therefore, the appended claims are hereby clearly incorporated into the detailed description, where each claim stands alone as a separate preferred embodiment of the present utility model.

[0042] In order to enable any person skilled in the art to implement or use the present utility model, the above-described disclosed embodiments are described. For those skilled in the art, various modification methods of these embodiments are obvious, and the general principles defined herein can also be applied to other embodiments without departing from the spirit and protection scope of the present disclosure. Therefore, the present disclosure is not limited to the embodiments given herein, but is consistent with the broadest scope of the principles and novel features disclosed in this application.

[0043] The above specific embodiments further elaborate on the purpose, technical solution, and beneficial effects of the present utility model. It should be understood that the above are only specific embodiments of the present utility model and are not used to limit the protection scope of the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A wire rope clamp, characterized in that, It includes an upper clamping plate (10), a lower clamping plate (40) and calipers (20). The calipers (20) are of a rectangular block structure with a through-arc-shaped groove (21) opened on the side, and the diameter of the arc-shaped groove (21) matches the outer diameter of the steel wire rope (100). The upper clamping plate (10) and the lower clamping plate (40) are arranged in parallel. Two calipers (20) with downward openings are connected to the bottom surface of the upper clamping plate (10), and two calipers (20) with upward openings are connected to the top surface of the lower clamping plate (40), and each caliper (20) with a downward opening is opposite in position to a caliper (20) with an upward opening. The calipers (20) are arranged at intervals along the length direction of the upper clamping plate (10). The upper clamping plate (10) is also hinged with a locking screw (30). A connection hole (41) is opened on the lower clamping plate (40). When the locking screw (30) is in a vertical state, it penetrates through the connection hole (41), and a locking nut is connected to the bottom end of the locking screw (30).

2. The wire rope clamp according to claim 1, characterized in that, The arc corresponding to the arc-shaped groove (21) is a minor arc.

3. The wire rope clamp according to claim 1, characterized in that, The axial direction of the arc-shaped groove (21) is perpendicular to the length direction of the upper clamping plate (10); along the axial direction of the arc-shaped groove (21), the width dimension of the caliper (20) is the same as the width dimension of the upper clamping plate (10), and the width dimension of the upper clamping plate (10) is the same as the width dimension of the lower clamping plate (40).

4. The wire rope clamp according to claim 1, wherein On the bottom surface of the arc-shaped groove (21), a plurality of first grooves (53) are further provided, and the bottom surface of the first groove (53) is an arc-shaped structure coaxial with the arc-shaped groove (21).

5. The wire rope clamp according to claim 1, characterized in that, There are two locking screws (30) in total, and the two locking screws (30) are respectively connected to both ends of the upper clamping plate (10).

6. The wire rope clamp according to claim 5, characterized in that, The connection hole (41) on the left side penetrates through the left side of the lower clamping plate (40), and the connection hole (41) on the right side penetrates through the right side of the lower clamping plate (40).

7. The wire rope clamp according to claim 6, characterized in that, The locking screw (30) includes a locking screw body (31) and a screw head end fixedly connected to the top of the locking screw body (31). The screw head end is a circular ring structure with a first through hole (32) opened in the middle. The axial direction of the first through hole (32) is perpendicular to the length direction of the locking screw body (31). Connection ends are respectively arranged at the left and right ends of the upper clamping plate (10). The connection ends are circular ring structures with a second through hole (12) opened in the middle. The axial direction of the second through hole (12) is consistent with the width direction of the upper clamping plate (10). An installation groove (13) is further provided on the connection end, and the width of the installation groove (13) matches the width of the screw head end. A connection pin shaft (14) penetrates through the first through hole (32) and the second through hole (12), and an external thread is provided at the end of the connection pin shaft (14). The end of the connection pin shaft (14) meshes with the locking nut.

8. The wire rope clamp according to claim 1, characterized in that, The caliper (20) is detachably connected to the upper clamping plate (10) through a connection bolt, and the caliper (20) is detachably connected to the lower clamping plate (40) through a connection bolt.

9. The wire rope clamp according to claim 8, characterized in that The connecting bolt includes a connecting bolt body (51) and a boss (52). The boss (52) is fixedly connected to one end of the connecting bolt body (51). The other end of the connecting bolt body (51) is a threaded end, and the threaded end meshes with a locking nut. The cross-section of the boss (52) is larger than that of the connecting bolt body (51), and the boss (52) is connected to the caliper (20); an upper clamping plate bolt hole (11) is formed in the upper clamping plate (10), and the connecting bolt body (51) located above sequentially passes through the caliper (20) with an opening downward and the upper clamping plate bolt hole (11); a lower clamping plate bolt hole is formed in the lower clamping plate (40), and the connecting bolt body (51) located below sequentially passes through the caliper (20) with an opening downward and the lower clamping plate bolt hole.

10. The wire rope clamp according to claim 9, characterized in that, A second groove (54) is further formed in the bottom surface of the arc-shaped groove (21). The bottom surface of the second groove (54) is an arc-shaped structure coaxial with the arc-shaped groove (21); the boss (52) is fitted in the second groove (54), and one surface of the boss (52) close to the threaded end is in contact with the bottom surface of the second groove (54), and the surface of the boss (52) away from the threaded end is an arc-shaped structure flush with the bottom surface of the arc-shaped groove (21).

Images