Cable fixing assembly and anti-loosening device

Abstract

The invention discloses a cable fixing assembly and an anti-loosening device, and belongs to the technical field of cable fixing.The cable fixing assembly comprises two clamping plates which are oppositely arranged; the cable hanging plate and the locking plate are arranged between the two clamping plates, the cable hanging plate and the locking plate are detachably connected, one end of an elastic film is fixed to the bottom of the cable hanging plate, and the other end of the elastic film is fixedly connected with the bottom end of the locking plate; a containing space is formed among the elastic film, the cable hanging plate and the locking plate and used for containing a cable. According to the invention, the elastic film is arranged to adapt to cables of different sizes, and the cable is fixed on the steel strand through the locking mechanism, so that the phenomenon that the cable falls off or slips is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of cable fixing, in particular to a cable fixing assembly and an anti-loosening device. Background Art

[0002] A cable is made of one or more mutually insulated conductors covered with an insulating protective layer. Its function is to transmit electricity or information from one point to another. There are many different types of cables. Power cables are used to transmit and distribute electrical energy. They are commonly used in urban underground power grids, power station outbound lines, internal power supplies for industrial and mining enterprises, and underwater transmission lines across rivers and seas. Cables are commonly laid using various methods, including direct burial, trench laying, tunnel laying, and wall laying. Overhead laying is also common in distribution networks.

[0003] A common method involves placing steel strands between poles or other solid structures, then tying the power cables to the strands using BV wire, copper wire, or aluminum wire. However, this method of securing power cables is ineffective. In windy conditions, the cables are prone to swaying, which can damage cable operation over time. In practice, cables often become dislodged or slip after only a short period of operation. This complicates subsequent maintenance and impacts the safe and stable operation of the cables. Therefore, we propose a cable locking device with a roller frame to prevent loosening. Summary of the Invention

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of this application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions should not be used to limit the scope of the present invention.

[0005] In view of the above problems and / or the problems existing in the prior art, the present invention is proposed.

[0006] Therefore, a first object of the present invention is to provide a cable fixing assembly that can adapt to cables of different sizes.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a cable fixing assembly, comprising two clamping plates arranged opposite to each other; and a cable hanging plate and a locking plate arranged between the two clamping plates, the cable hanging plate and the locking plate being detachably connected, one end of an elastic membrane being fixed to the bottom of the cable hanging plate, and the other end of the elastic membrane being fixedly connected to the bottom end of the locking plate; an accommodating space is formed between the elastic membrane, the cable hanging plate and the locking plate, and the accommodating space is used to store cables.

[0008] As a preferred solution of the cable fixing assembly of the present invention, the cable hanging plate and the locking plate are arranged parallel to each other, a limiting groove is provided on the side of the cable hanging plate facing the locking plate, and a locking hole is provided on the side of the locking plate facing the cable hanging plate, the locking hole is connected to the limiting groove, and the locking hole can move along the length direction of the limiting groove.

[0009] As a preferred solution of the cable fixing assembly of the present invention, wherein: a second bolt is provided in the locking hole of the locking plate, the second bolt passes through the limiting groove, and a second nut is provided on the side of the cable hanging plate away from the locking plate; the locking plate and the cable hanging plate are connected by the second bolt and the second nut.

[0010] The second object of the present invention is to provide an anti-loosening device, which can ensure the stability of the cable and prevent the cable from falling off or slipping.

[0011] In order to solve the above technical problems, the present invention provides the following technical solutions: an anti-loosening device, including the above-mentioned cable fixing assembly, and first arc-shaped clamping grooves are provided on the opposite sides of the two clamping plates, and the two first arc-shaped clamping grooves cooperate with each other and are used to accommodate the steel strand; a locking mechanism includes a roller and an extrusion block arranged between the two clamping plates, and the extrusion block is in conflict with the roller; when the extrusion block moves toward the direction close to the roller, the roller can squeeze the steel strand.

[0012] As a preferred solution of the anti-loosening device of the present invention, wherein: the splint is also provided with a horizontally arranged first through slot and a vertically arranged second through slot, and the first through slot and the second through slot are connected; the roller is arranged corresponding to the second through slot, and the extrusion block is arranged corresponding to the first through slot; the roller can move along the length direction of the second through slot toward the direction close to the steel wire rope, and the extrusion block can move along the length direction of the first through slot toward the direction close to the roller.

[0013] As a preferred solution of the anti-loosening device of the present invention, wherein: the two facing sides of the two clamps are provided with a second arc-shaped snap-in groove, and the two second arc-shaped snap-in grooves cooperate with each other and are used to accommodate the cross bar; the inner wall of the second arc-shaped snap-in groove is provided with a first limiting groove, and a limiting strip is provided on the circumferential wall of the cross bar, and the limiting strip is snap-connected with the first limiting groove; both ends of the cross bar are connected to fixed rods; the cable hanging plate is arranged between the two fixed rods.

[0014] As a preferred solution of the anti-loosening device of the present invention, wherein: the roller is provided with a first threaded rod, the first threaded rod and the second through groove, the first threaded rod is threadedly connected with a third nut, and the third nut can interfere with the splint.

[0015] As a preferred solution of the anti-loosening device of the present invention, the locking mechanism also includes a locking block arranged between the two clamps; the locking block is slidably installed in the first through slot, and the locking block is provided with a second threaded rod passing through the first through slot, and the second threaded rod is threadedly connected with a fourth nut, and the fourth nut is in conflict with the clamp.

[0016] As a preferred solution of the anti-loosening device of the present invention, wherein: the cross section of the extrusion block is a right triangle, the short side end face of the extrusion block faces the locking block and is provided with a bearing seat;

[0017] A threaded hole is provided on the side of the locking block facing the extrusion block, one end of the third threaded rod is threadedly connected to the threaded hole, and the other end of the third threaded rod is fixed to the inner ring of the bearing seat; one end of the third threaded rod that is threadedly connected to the threaded hole of the locking block passes through the locking block and extends in a direction away from the locking block.

[0018] As a preferred solution of the anti-loosening device of the present invention, a second limiting groove is opened on the inner wall of the splint, a limiting block is provided on the side of the extrusion block, the limiting block is slidably connected to the second limiting groove, and the limiting block cooperates with the second limiting groove and limits the movement of the extrusion block toward the direction close to the roller.

[0019] The beneficial effects of the present invention are as follows: the present invention adapts to cables of different sizes by arranging an elastic membrane, and fixes the elastic membrane to the steel strand by a locking mechanism, thereby preventing the cable from falling off or slipping. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be derived from these drawings without inventive effort. Among them:

[0021] Figure 1 It is a structural diagram of the anti-loosening device of the present invention.

[0022] Figure 2 It is a front view of the anti-loosening device of the present invention.

[0023] Figure 3 It is a rear view of the anti-loosening device of the present invention.

[0024] Figure 4 It is a side view of the anti-loosening device of the present invention.

[0025] Figure 5 It is a front view of the inner side of a clamping plate of the anti-loosening device of the present invention.

[0026] Figure 6 It is a front view of the inner side of another clamping plate of the anti-loosening device of the present invention. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] Next, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, when describing embodiments of the present invention, cross-sectional views illustrating device structures may be partially enlarged and not to scale. Furthermore, these schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0030] Furthermore, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0031] Example 1

[0032] Reference Figures 1 to 6 , which is the first embodiment of the present invention, provides a cable fixing assembly, including a clamping plate 100, a cable hanging plate 301 and a locking plate 303; the clamping plate 100 is used to install the cable hanging plate 301, and the cable hanging plate 301 is used to install and adjust the height of the locking plate 303.

[0033] Specifically, two splints 100 are provided, and the two splints 100 are arranged facing each other.

[0034] Preferably, the cable hanging plate 301 and the locking plate 303 are arranged between the two splints 100, the cable hanging plate 301 and the locking plate 303 are detachably connected, and the height of the locking plate 303 relative to the cable hanging plate 301 is adjustable; the bottom of the cable hanging plate 301 is fixed with one end of the elastic membrane 302 by gluing or tape binding, and the other end of the elastic membrane 302 is fixedly connected to the bottom end of the locking plate 303 by gluing or tape binding.

[0035] Preferably, an accommodating space M is formed between the elastic membrane 302, the cable hanging plate 301 and the locking plate 303, and the accommodating space M is used to store cables; when the height of the locking plate 303 relative to the cable hanging plate 301 is adjusted, the accommodating space M will become larger or smaller, and when the locking plate 303 rises relative to the cable hanging plate 301, the accommodating space M will become smaller, and the cable is tightened by the elastic membrane 302.

[0036] Preferably, the elastic membrane 302 of this embodiment is made of rubber, which can absorb shock and vibration, thereby facilitating the stability of the cable.

[0037] Example 2

[0038] This is the second embodiment of the present invention, which is basically the same as the first embodiment, except that the elastic membrane 302 of this embodiment is made of polyurethane, which has good wear resistance and elasticity, and facilitates the stability of the cable.

[0039] Example 3

[0040] See Figures 1 to 6 , which is the third embodiment of the present invention, is based on embodiment 1 or embodiment 2.

[0041] Preferably, the cable hanging plate 301 and the locking plate 303 are arranged parallel to each other. A limit slot 301a is defined on the side of the cable hanging plate 301 facing the locking plate 303. A locking hole is defined on the side of the locking plate 303 facing the cable hanging plate 301. The locking hole is connected to the limit slot 301a and can move along the length of the limit slot 301a. When the locking plate 303 and the cable hanging plate 301 are moved in relative height, the locking hole moves along the length of the limit slot 301a during this process.

[0042] Preferably, a second bolt 303a is provided in the locking hole of the locking plate 303, the second bolt 303a passes through the limiting groove 301a, and a second nut 303b is provided on the side of the cable hanging plate 301 away from the locking plate 303; the locking plate 303 and the cable hanging plate 301 are connected by the second bolt 303a and the second nut 303b.

[0043] Example 4

[0044] See Figures 1 to 6 , which is the fourth embodiment of the present invention, provides an anti-loosening device.

[0045] Specifically, the two sides of the middle part of the two splints 100 are connected by the first bolt 101 and the first nut 101a respectively, and the upper and lower parts of the opposite end surfaces of the two splints 100 are respectively provided with a first arc-shaped clamping groove 102 and a second arc-shaped clamping groove 103, and the inner wall of the second arc-shaped clamping groove 103 is provided with a first limiting groove 103a, and the two first arc-shaped clamping grooves 102 are provided with steel wire ropes 400.

[0046] A cross bar 500 is provided in the two second arc-shaped clamping grooves 103, and the two side walls of the cross bar 500 are respectively provided with limiting strips 501 located in the first limiting groove 103a. The two ends of the cross bar 500 extend out of the second arc-shaped clamping groove 103 and are respectively connected to the fixing rods 502. The cable fixing mechanism 300 includes a cable hanging plate 301 arranged between the two fixing rods 502, and an elastic rubber membrane 302 is glued to the bottom of one side of the cable hanging plate 301, and the other end of the elastic rubber membrane 302 is glued to the bottom end of the locking plate 303. The locking plate 303 is connected to the two sides of the cable hanging plate 301 by second bolts 303a and second nuts 303b respectively. The upper part of the two splints 100 is horizontally provided with a long first through groove 104 and vertically provided with a long second through groove 105, and the first through groove 104 and the second through groove 105 are connected.

[0047] The locking mechanism 200 includes a roller 201 disposed between the two clamping plates 100 . First threaded rods 201 a passing through the second through slots 105 are disposed on both sides of the roller 201 . Third nuts 201 b are threadedly connected to outer walls of the two first threaded rods 201 a .

[0048] Place the steel strand 400 and the cross bar 500 in the first arc-shaped snap-fit ​​groove 102 and the second arc-shaped snap-fit ​​groove 103 of the two splints 100 respectively, tighten the first bolt 101 and the first nut 101a to fix the position between the two splints 100. Since the two side walls of the cross bar 500 are respectively provided with limit strips 501 located in the first limit groove 103a, the cross bar 500 will not rotate in the second arc-shaped snap-fit ​​groove 103, thereby reducing the swing amplitude of the cable hanging plate 301 when subjected to side wind and improving the stability of the cable.

[0049] Place the cable under the cable hanging plate 301, wrap the elastic rubber membrane 302 around the cable and tighten it, then fix the locking plate 303 to the cable hanging plate 301 through the second bolt 303a and the second nut 303b. The cable will not easily move or fall off under the tightening of the elastic rubber membrane 302. The elastic rubber membrane 302 also provides a layer of protection for the cable to avoid damage to the cable.

[0050] Preferably, the inner wall of the first arc-shaped engaging groove 102 is provided with a thread-shaped protrusion.

[0051] The threaded protrusions on the inner wall of the first arc-shaped clamping groove 102 can increase the friction between the first arc-shaped clamping groove 102 and the steel strand 400 , so that the two clamping plates 100 can be better fixed on the steel strand 400 .

[0052] Preferably, limiting grooves 301a are vertically provided on both sides of the cable hanging plate 301, and locking holes are provided at positions corresponding to the two limiting grooves 301a on the locking plate 303, and the second bolt 303a passes through the locking holes and is connected with the second nut 303b.

[0053] Place the cable under the cable hanging plate 301, wrap the elastic rubber membrane 302 around the cable and tighten it, then move the locking plate 303 upwards. After determining the fixed position, pass the second bolt 303a through the locking hole and connect it with the second nut 303b, so that there will be no movement between the locking plate 303 and the cable hanging plate 301. This is suitable for cables of different sizes. For cables of different sizes, you only need to determine the positional relationship between the locking plate 303 and the cable hanging plate 301.

[0054] Preferably, the locking mechanism 200 also includes a locking block 202 and an extrusion block 203 arranged between the two splints 100, and a second threaded rod 202a passing through the first through groove 104 is respectively provided on both sides of the locking block 202, the second threaded rod 202a is threadedly connected to the fourth nut 202b, the cross-section of the extrusion block 203 is a right triangle, the short side end face of the extrusion block 203 faces the locking block 202 and is provided with a bearing seat 203a, a threaded hole is provided in the middle of the locking block 202, and one end of the third threaded rod 203b is fixed to the inner ring of the bearing seat 203a, the other end of the third threaded rod 203b is threadedly connected to the threaded hole in the middle of the locking block 202 and extends outward, and the other end of the third threaded rod 203b is provided with a hexagonal nut.

[0055] A fourth nut 202 b is screwed onto the outer wall of the second threaded rod 202 a passing through the first through slot 104 , thereby fixing the positional relationship between the locking block 202 and the two clamping plates 100 .

[0056] Preferably, a second limiting groove 106 is formed on one of the two clamping plates 100 , and a limiting block 203 c located in the second limiting groove 106 is provided on the side of the extrusion block 203 .

[0057] Use a wrench to turn the hexagonal nut at one end of the third threaded rod 203b, and the third threaded rod 203b drives the extrusion block 203 forward. The extrusion block 203 continues to move forward after contacting the roller 201. The inclined surface of the extrusion block 203 continuously squeezes the roller 201, driving the roller 201 to move down and press the steel strand 400 until the extrusion block 203 can hardly move forward. Tighten the third nut 201b on the outer wall of the first threaded rod 201a passing through the second through groove 105 on both sides of the roller 201, so that the positional relationship between the roller 201 and the two splints 100 is fixed while also firmly squeezing the steel strand 400 above, thereby strengthening the firmness between the steel strand 400 and the two splints 100.

[0058] Working principle: The steel strand 400 and the cross bar 500 are respectively placed in the first arc-shaped clamping groove 102 and the second arc-shaped clamping groove 103 of the two clamping plates 100, and the first bolt 101 and the first nut 101a are tightened to fix the position between the two clamping plates 100. Since the two side walls of the cross bar 500 are respectively provided with limit strips 501 located in the first limit groove 103a, the cross bar 500 will not rotate in the second arc-shaped clamping groove 103, thereby reducing the swing amplitude of the cable hanging plate 301 when subjected to side wind and improving the stability of the cable;

[0059] The outer wall of the second threaded rod 202a passing through the first through slot 104 is tightened with a fourth nut 202b, so that the positional relationship between the locking block 202 and the two clamping plates 100 is fixed. The hexagonal nut at one end of the third threaded rod 203b is turned with a wrench, and the third threaded rod 203b drives the extrusion block 203 forward. After contacting the roller 201, the extrusion block continues to move forward. The inclined surface of the extrusion block 203 continuously squeezes the roller 201, driving the roller 201 to move downward and press the steel strand 400 until the extrusion block 203 is difficult to move forward. The outer wall of the first threaded rod 201a passing through the second through slot 105 on both sides of the roller 201 is tightened with the third nut 201b, so that the positional relationship between the roller 201 and the two clamping plates 100 is fixed while also firmly squeezing the steel strand 400 above, thereby strengthening the firmness between the steel strand 400 and the two clamping plates 100;

[0060] Place the cable under the cable hanging plate 301, wrap the elastic rubber membrane 302 around the cable and tighten it, then move the locking plate 303 upwards. After determining the fixed position, pass the second bolt 303a through the locking hole and connect it with the second nut 303b, so that there will be no movement between the locking plate 303 and the cable hanging plate 301. This is suitable for cables of different sizes. For cables of different sizes, you only need to determine the positional relationship between the locking plate 303 and the cable hanging plate 301.

[0061] It is important to note that the construction and arrangement of the present application shown in a number of different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, directional changes, etc.) without departing substantially from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structures. Other replacements, modifications, changes, and omissions may be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0062] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0063] It will be appreciated that in the development of any actual embodiment, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will, for those of ordinary skill having the benefit of this disclosure, be a routine undertaking of design, fabrication, and production without undue experimentation.

[0064] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A cable fixing assembly, characterized in that: include: Two clamping plates (100) arranged facing each other; and a cable hanging plate (301) and a locking plate (303) arranged between the two clamping plates (100), wherein the cable hanging plate (301) and the locking plate (303) are detachably connected, one end of an elastic membrane (302) is fixed to the bottom of the cable hanging plate (301), and the other end of the elastic membrane (302) is fixedly connected to the bottom end of the locking plate (303); An accommodating space (M) is formed between the elastic membrane (302), the cable hanging plate (301) and the locking plate (303), and the accommodating space (M) is used for storing cables.

2. The cable fixing assembly according to claim 1, characterized in that: The cable hanging plate (301) and the locking plate (303) are arranged parallel to each other, a limiting groove (301a) is provided on one side of the cable hanging plate (301) facing the locking plate (303), a locking hole is provided on one side of the locking plate (303) facing the cable hanging plate (301), the locking hole is connected to the limiting groove (301a), and the locking hole can move along the length direction of the limiting groove (301a).

3. The cable fixing assembly according to claim 2, characterized in that: A second bolt (303a) is provided in the locking hole of the locking plate (303), and the second bolt (303a) passes through the limiting groove (301a); a second nut (303b) is provided on the side of the cable hanging plate (301) away from the locking plate (303); the locking plate (303) and the cable hanging plate (301) are connected in cooperation with each other through the second bolt (303a) and the second nut (303b).

4. An anti-loosening device, characterized in that: include: The cable fixing assembly according to any one of claims 1 to 3, and The two clamping plates (100) are each provided with a first arc-shaped clamping groove (102) on the opposite sides thereof, and the two first arc-shaped clamping grooves (102) cooperate with each other and are used to accommodate the steel strand (400); A locking mechanism (200) comprises a roller (201) and an extrusion block (203) arranged between two clamping plates (100), wherein the extrusion block (203) is in conflict with the roller (201); When the squeezing block (203) moves toward the direction approaching the roller (201), the roller (201) can squeeze the steel strand (400).

5. The anti-loosening device according to claim 4, characterized in that: The clamping plate (100) is also provided with a first through slot (104) which is arranged horizontally and a second through slot (105) which is arranged vertically, and the first through slot (104) and the second through slot (105) are connected; the roller (201) is arranged corresponding to the second through slot (105), and the extrusion block (203) is arranged corresponding to the first through slot (104); the roller (201) can move along the length direction of the second through slot (105) toward the direction approaching the steel strand (400), and the extrusion block (203) can move along the length direction of the first through slot (104) toward the direction approaching the roller (201).

6. The anti-loosening device according to claim 5, characterized in that: The two clamping plates (100) are each provided with a second arc-shaped snap-in groove (103) on the facing sides, and the two second arc-shaped snap-in grooves (103) cooperate with each other and are used to accommodate the cross bar (500); the inner wall of the second arc-shaped snap-in groove (103) is provided with a first limiting groove (103a), and the circumferential wall of the cross bar (500) is provided with a limiting strip (501), and the limiting strip (501) is snap-connected with the first limiting groove (103a); both ends of the cross bar (500) are connected with a fixing rod (502); and the cable hanging plate (301) is arranged between the two fixing rods (502).

7. The anti-loosening device according to claim 5 or 6, characterized in that: The roller (201) is provided with a first threaded rod (201a), the first threaded rod (201a) is connected to the second through groove (105), and the first threaded rod (201a) is threadedly connected with a third nut (201b), and the third nut (201b) can interfere with the clamping plate (100).

8. The anti-loosening device according to claim 7, characterized in that: The locking mechanism (200) further comprises a locking block (202) arranged between the two clamping plates (100); the locking block (202) is slidably installed in the first through slot (104); a second threaded rod (202a) passing through the first through slot (104) is provided on the locking block (202); a fourth nut (202b) is threadedly connected to the second threaded rod (202a); and the fourth nut (202b) is in conflict with the clamping plates (100).

9. The anti-loosening device according to claim 8, characterized in that: The cross section of the extrusion block (203) is a right triangle, the short side end face of the extrusion block (203) faces the locking block (202) and is provided with a bearing seat (203a); A threaded hole is provided on one side of the locking block (202) facing the extrusion block (203), one end of a third threaded rod (203b) is threadedly connected to the threaded hole, and the other end of the third threaded rod (203b) is fixed to the inner ring of the bearing seat (203a); one end of the third threaded rod (203b) threadedly connected to the threaded hole of the locking block (202) passes through the locking block (202) and extends in a direction away from the locking block (202).

10. The anti-loosening device according to claim 9, characterized in that: A second limiting groove (106) is formed on the inner wall of the clamping plate (100), and a limiting block (203c) is provided on the side of the extrusion block (203). The limiting block (203c) is slidably connected to the second limiting groove (106), and the limiting block (203c) cooperates with the second limiting groove (106) and limits the movement of the extrusion block (203) in a direction close to the roller (201).

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