Ratchet type anti-theft device

Abstract

The present invention discloses a ratchet anti-theft device, aiming to provide a ratchet anti-theft device with good self-protection and not easy to be damaged. It comprises a ratchet module, a protection module and an anti-theft module, wherein the ratchet module is located at the upper end of the protection module, a connecting column is provided on the ratchet module, the connecting column is connected to the lower end of the ratchet module, the protection module is connected to the outer edge of the connecting column, the lower end of the connecting column is connected to a connecting platform, the anti-theft module is connected to the connecting platform, and the connecting platform and the anti-theft module are both located inside the protection module. The beneficial effects of the present invention are as follows: the anti-theft device has good self-protection and is not easy to be damaged; it can be tightened by the side force of the ratchet, and the side of the ratchet has no force point to prevent reversal, thereby ensuring anti-theft performance; the anti-theft performance is enhanced by the cooperation of the anti-theft plate and the anti-theft ring; and the stability performance is good.

Description

Technical Field

[0001] The present invention relates to the technical field related to anti-theft, and in particular to a ratchet anti-theft device. Background Art

[0002] Conventional nuts do not have an anti-theft function, but in some special use occasions, such as power transmission towers of power systems, communication systems, and highways and other field facilities, in order to prevent damage by lawless elements, the fastening nuts are required to have an anti-theft function. There are various anti-theft methods in the prior art, such as directly setting an anti-theft structure on the nut, or adding an anti-theft device to the nut. The anti-theft device currently added to the nut is not stable enough, and the anti-theft device itself is easy to wear. Summary of the invention

[0003] The present invention aims to overcome the shortcomings of the prior art anti-theft devices, which have poor protection and are easily damaged, and provides a ratchet anti-theft device with good protection and is not easily damaged.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A ratchet anti-theft device comprises a ratchet module, a protection module and an anti-theft module, wherein the ratchet module is located at the upper end of the protection module, the ratchet module is provided with a connecting column, the connecting column is connected to the lower end of the ratchet module, the protection module is connected to the outer edge of the connecting column, the lower end of the connecting column is connected to a connecting platform, the anti-theft module is connected to the connecting platform, and the connecting platform and the anti-theft module are both located inside the protection module.

[0006] The ratchet module is placed at the upper end of the protection module, and a connecting column is provided on the ratchet module, which is connected to the lower end of the ratchet module, and the protection module is connected to the outer edge of the connecting column. The ratchet module is connected to the protection module through the connecting column, and the lower end of the connecting column is connected to a connecting platform, and the anti-theft module is connected to the connecting platform. The connecting platform and the anti-theft module are both located inside the protection module, and the anti-theft module is connected to the protection module and the ratchet module through the cooperation of the connecting platform and the connecting column. The anti-theft function of the nut is realized through the anti-theft module, the anti-theft module and the protection module are tightened through the ratchet module, and the anti-theft module itself is protected through the protection module, thereby achieving the purpose of good self-protection and not easy to be damaged.

[0007] Preferably, the ratchet module includes a ratchet, which is connected to the upper end of the connecting column. The ratchet is provided with a plurality of ratchet teeth, which are evenly distributed on the side of the ratchet. The ratchet includes a front side and a side side. The side side of the ratchet is a plane, and the front side of the ratchet is a curved surface. By contacting the side of the ratchet with a special tightening tool, there can be a force point, and the nut can be tightened on the bolt. If the special tightening tool wants to loosen the nut, it needs to be reversed. When reversing, the force of the special tightening tool acts on the side of the ratchet. Since the side of the ratchet is a curved surface and has no force point, it cannot loosen, thereby achieving the purpose of anti-theft.

[0008] Preferably, the protection module includes a protective cover, which is connected to the outer edge of the connecting column, the connecting platform and the anti-theft module are both located inside the protective cover, the plane where the lower end of the protective cover is located is on the same plane as the plane where the lower end of the anti-theft module is located, the connecting platform is truncated, and the diameter of the connecting platform gradually decreases from the upper end surface to the lower end surface. A screw hole is provided on the connecting platform, and the screw hole is located at the center of the connecting platform. The special tightening tool can be conveniently placed through the connecting column, and the anti-theft module is connected to the protection module through the connecting platform. The anti-theft module can be protected from damage through the protective cover.

[0009] Preferably, the anti-theft module includes an anti-theft block and an anti-theft ring. A bolt is connected at the center of the upper end surface of the anti-theft block. The anti-theft block is threadedly connected to the connecting platform through the cooperation of the bolt and the screw hole. A groove is provided on the side of the anti-theft block. The anti-theft ring is placed in the groove. A nut groove is provided inside the anti-theft block. The anti-theft ring is installed on the anti-theft block through the groove. The matching nut that needs to be protected can be installed inside the anti-theft block through the nut groove.

[0010] Preferably, the anti-theft block is provided with several anti-theft plates, and a connecting ring is provided on the left side of the anti-theft plate, the connecting ring is connected to the anti-theft plate, and the anti-theft ring is provided with several annular grooves matching the connecting ring, and the number of the annular grooves is the same as that of the connecting rings. The anti-theft plate is rotatably connected to the anti-theft ring through the cooperation of the connecting ring and the annular groove, and the connecting ring is placed in the annular groove, so that the anti-theft plate is installed on the anti-theft ring and can rotate.

[0011] Preferably, the upper end of the anti-theft plate is tilted to the left, and the left end face of the anti-theft plate is provided with a spring and a block, both of which are connected to the anti-theft plate, the spring is located between the block and the connecting ring, and the block is installed at the lower end of the anti-theft plate. The spring can support the anti-theft plate to remain vertical when there is no thrust generated by the downward movement of the connecting platform to ensure that the nut can enter the nut groove normally.

[0012] Preferably, the anti-theft block is provided with a plurality of holes matching the stopper, the holes are located on the side of the bottom of the anti-theft block, and the number of the holes is the same as the number of the stopper. When the connecting platform is tightened to the anti-theft block, the connecting platform moves downward. Since the diameter of the upper end surface of the connecting platform is larger than the diameter of the lower end surface, the left-inclined portion of the upper end of the anti-theft plate will contact the side of the connecting platform during the downward movement. While being subjected to the thrust, the anti-theft plate rotates due to the presence of the connecting ring, and the stopper at the lower end of the anti-theft plate moves to the left and gradually enters the hole. When the connecting platform contacts and tightens the upper end surface of the anti-theft block, the stopper enters the hole and contacts the portion of the lower end of the nut that has not entered the bottom surface, thereby ensuring the fastening of the nut to the ratchet anti-theft device.

[0013] The beneficial effects of the present invention are as follows: the anti-theft device itself has good protection and is not easy to be damaged; the side force of the ratchet can be tightened, and the side of the ratchet has no force point to prevent reversal, thereby ensuring the anti-theft performance; the anti-theft performance is enhanced by the cooperation of the anti-theft plate and the anti-theft ring; and the stability performance is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the present invention;

[0015] Figure 2 is a schematic diagram of the structure of the ratchet module;

[0016] Figure 3 It is a schematic diagram of the structure of the protective cover;

[0017] Figure 4 Structural diagram of the anti-theft module;

[0018] Figure 5 It is a schematic diagram of the structure of the anti-theft block;

[0019] Figure 6 It is a schematic diagram of the structure of the anti-theft ring;

[0020] Figure 7 It is a structural diagram of the nut slot;

[0021] Figure 8 It is a structural diagram of the anti-theft board;

[0022] Fig. 9 It is a schematic diagram of the structure of a ratchet.

[0023] In the figure: 1. ratchet module, 2. protection module, 3. anti-theft module, 4. ratchet, 5. ratchet, 6. connecting column, 7. protection cover, 8. connecting platform, 9. anti-theft block, 10. anti-theft ring, 11. groove, 12. nut groove, 13. anti-theft plate, 14. connecting ring, 15. annular groove, 16. spring, 17. block, 18. hole, 19. screw hole, 20. bolt, 21. front, 22. side. DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0025] like Figure 1 In the embodiment described, a ratchet anti-theft device includes a ratchet module 1, a protection module 2 and an anti-theft module 3. The ratchet module 1 is located at the upper end of the protection module 2. The ratchet module 1 is provided with a connecting column 6, which is connected to the lower end of the ratchet module 1. The protection module 2 is connected to the outer edge of the connecting column 6. The lower end of the connecting column 6 is connected to a connecting platform 8. The anti-theft module 3 is connected to the connecting platform 8. The connecting platform 8 and the anti-theft module 3 are both located inside the protection module 2. Figure 2 As shown, the ratchet module 1 includes a ratchet 4, which is connected to the upper end of the connecting column 6. The ratchet 4 is provided with a plurality of ratchet teeth 5, which are evenly distributed on the side of the ratchet 4. Fig. 9 As shown, the ratchet includes a front face 21 and a side face 22. The side face 22 of the ratchet 5 is a plane, and the front face 21 of the ratchet 5 is a curved surface. Figure 3 As shown, the protection module 2 includes a protection cover 7, which is connected to the outer edge of the connection column 6, and the connection platform 8 and the anti-theft module 3 are both located inside the protection cover 7. The plane where the lower end of the protection cover 7 is located is on the same plane as the plane where the lower end of the anti-theft module 3 is located. Figure 4 As shown, the connection platform 8 is in the shape of a truncated cone, and the diameter of the connection platform 8 gradually decreases from the upper end surface to the lower end surface. The connection platform 8 is provided with a screw hole 19, and the screw hole 19 is located at the center of the connection platform 8. Figure 5 As shown, the anti-theft module 3 includes an anti-theft block 9 and an anti-theft ring 10. A bolt 20 is connected at the center of the upper end surface of the anti-theft block 9. The anti-theft block 9 is threadedly connected to the connecting platform 8 through the cooperation of the bolt 20 and the screw hole 19. A groove 11 is provided on the side of the anti-theft block 9, and the anti-theft ring 10 is placed in the groove 11. Figure 7 As shown, the interior of the anti-theft block 9 is provided with a nut groove 12, the anti-theft block 9 is provided with a plurality of anti-theft plates 13, and the left side of the anti-theft plate 13 is provided with a connecting ring 14, as shown in FIG. Figure 6 As shown, the connecting ring 14 is connected to the anti-theft plate 13, and the anti-theft ring 10 is provided with a plurality of annular grooves 15 matching the connecting ring 14, and the number of the annular grooves 15 is the same as that of the connecting ring 14. Figure 8 As shown, the anti-theft plate 13 is rotatably connected to the anti-theft ring 10 through the cooperation of the connecting ring 14 and the annular groove 15. The upper end of the anti-theft plate 13 is tilted to the left. A spring 16 and a block 17 are provided on the left side of the anti-theft plate 13. The spring 16 and the block 17 are both connected to the anti-theft plate 13. The spring 16 is located between the block 17 and the connecting ring 14. The block 17 is installed at the lower end of the anti-theft plate 13. The anti-theft block 9 is provided with a plurality of holes 18 matching the block 17. The holes 18 are located on the bottom side of the anti-theft block 9, and the number of the holes 18 is the same as that of the block 17.

[0026] When in use, place the nut in the nut groove 12 of the anti-theft block 9, and realize the connection between the anti-theft block 9 and the nut through the matching nut and nut groove 12, place the screw hole 19 on the lower end surface of the connecting platform 8 on the bolt 20 on the upper end surface of the anti-theft block 9, and realize the connection between the anti-theft block 9 and the connecting platform 8 through the matching bolt 20 and screw hole 19, which can realize the stable connection between the anti-theft module 3 and the protection module 2, and place the protection cover 7 outside the anti-theft module 3 to improve the protection performance of the anti-theft device itself, place the special tightening tool on the connecting column 6 and contact with the side 22 of the ratchet 5, and realize the fastening of the anti-theft block 9 and the connecting platform 8 through the forward rotation of the tightening tool, which can ensure the tightening of the connecting platform 8 and prevent reversal, and ensure the anti-theft performance of the anti-theft device itself, and when the nut is loose, the nut can be tightened again through the forward rotation to keep it stable; place the special tightening tool on the connecting column 6 and contact with the side 22 of the ratchet 5, and realize the fastening of the anti-theft block 9 and the connecting platform 8 through the forward rotation of the tightening tool The leftward inclined portion of the upper end of the anti-theft plate 13 contacts the connecting platform 8 during the tightening of the connecting platform 8, and the rotation of the connecting ring 14 in the annular groove 15 is realized by the force applied to the connecting ring 14 to realize the rotation of the anti-theft plate 13, and the stopper 17 at the lower end of the anti-theft plate 13 moves to the left and enters the hole 18, and the stopper 17 is placed in the hole 18 and contacts the portion of the lower end surface of the nut that has not entered the ground, so as to realize the fastening of the ratchet anti-theft device and the nut. During the tightening of the connecting platform 8, since the diameter of the upper end surface of the connecting platform 8 is greater than the diameter of the lower end surface and the downward movement of the connecting platform 8, the inclined portion of the upper end of the anti-theft plate 13 can contact the side surface of the connecting platform 8 and gradually move to the right. While moving, the connecting ring 14 of the anti-theft plate 13 rotates in the annular groove 15 and drives the anti-theft plate to rotate, and the stopper 17 moves to the right and enters the hole 18 while the anti-theft plate 13 rotates, and presses against the lower end surface of the nut, so that the anti-theft device and the nut remain stable and cannot be lifted up, thereby ensuring the stability of the device.

Claims

1. A ratchet anti-theft device, characterized in that: The invention comprises a ratchet module (1), a protection module (2) and an anti-theft module (3), wherein the ratchet module (1) is located at the upper end of the protection module (2), the ratchet module (1) is provided with a connecting column (6), the connecting column (6) is connected to the lower end of the ratchet module (1), the protection module (2) is connected to the outer edge of the connecting column (6), the lower end of the connecting column (6) is connected to a connecting platform (8), the anti-theft module (3) is connected to the connecting platform (8), the connecting platform (8) and the anti-theft module (3) are both located inside the protection module (2), the ratchet module (1) comprises a ratchet (4), the ratchet (4) is connected to the upper end of the connecting column (6), the ratchet (4) is provided with a plurality of ratchet teeth (5), the The ratchet teeth (5) are evenly distributed on the side of the ratchet wheel (4), the ratchet teeth include a front side (21) and a side side (22), the side side (22) of the ratchet teeth (5) is a plane, and the front side (21) of the ratchet teeth (5) is a curved surface. The protection module (2) includes a protection cover (7), the protection cover (7) is connected to the outer edge of the connection column (6), the connection platform (8) and the anti-theft module (3) are both located inside the protection cover (7), the plane where the lower end of the protection cover (7) is located is on the same plane as the plane where the lower end of the anti-theft module (3) is located, the connection platform (8) is in the shape of a truncated cone, the diameter of the connection platform (8) gradually decreases from the upper end surface to the lower end surface, and the connection platform (8) is provided with a screw hole (19), the screw hole (19) is located at the center of the connecting platform (8), the anti-theft module (3) comprises an anti-theft block (9) and an anti-theft ring (10), a bolt (20) is connected at the center of the upper end surface of the anti-theft block (9), the anti-theft block (9) is threadedly connected to the connecting platform (8) through the cooperation of the bolt (20) and the screw hole (19), a groove (11) is provided on the side of the anti-theft block (9), the anti-theft ring (10) is placed in the groove (11), a nut groove (12) is provided inside the anti-theft block (9), a plurality of anti-theft plates (13) are provided on the anti-theft block (9), a connecting ring (14) is provided on the left side of the anti-theft plate (13), the connecting ring (14) is connected to the anti-theft plate (13), and the anti-theft ring (10) A plurality of annular grooves (15) matching the connecting ring (14) are provided on the anti-theft plate (13), the number of the annular grooves (15) being the same as the number of the connecting ring (14); the anti-theft plate (13) is rotatably connected to the anti-theft ring (10) through the cooperation between the connecting ring (14) and the annular grooves (15); the upper end of the anti-theft plate (13) is inclined to the left; a spring (16) and a stopper (17) are provided on the left side of the anti-theft plate (13); the spring (16) and the stopper (17) are both connected to the anti-theft plate (13); the spring (16) is located between the stopper (17) and the connecting ring (14); the stopper (17) is installed at the lower end of the anti-theft plate (13); and the anti-theft block (9) is provided with a plurality of holes (18) matching the stopper (17).The holes (18) are located on the bottom side of the anti-theft block (9), and the number of the holes (18) is the same as that of the stopper (17).

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