Chain clamping device

Abstract

The utility model belongs to the technical field of chain clamping devices, and particularly relates to a chain clamping device which comprises a chain clamping device body and further comprises two pull rods, the two pull rods are arranged on the chain clamping device body, rotating grooves are formed in the top ends of the pull rods, and two limiting blocks are rotationally connected into the rotating grooves. The two first sliding grooves are formed in the two pull rods correspondingly and communicate with the two rotating grooves correspondingly, extrusion blocks are connected into the first sliding grooves in a sliding mode, and threaded rods are connected into the extrusion blocks in a threaded mode; according to the chain clamping device, the problems that in the pulling process of the chain clamping device, the first tip and the second tip may fall off from the broken ends of the two chains, and the chain clamping device is not prone to falling off are solved, so that the service life of the chain clamping device is prolonged, and the service life of the chain clamping device is prolonged. Therefore, a user needs to insert the first tip and the second tip into the broken ends of the two chains respectively again, and the working efficiency is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of chain clamping devices, and particularly relates to a chain clamping device. Background Technique

[0002] A chain is composed of a series of rigid members (such as chain links or rings), and is usually used for mechanical transmission, traction, or as a chain-shaped object to block a traffic passage. The basic structure of a chain consists of inner chain links and outer chain links, and specifically includes small components such as inner chain plates, outer chain plates, pins, sleeves, and rollers. The quality of a chain depends largely on the quality of the pins and sleeves. When a chain breaks, a chain clamping device is usually required to pull the two broken ends of the chain closer to each other for repair.

[0003] For example, a Chinese patent with the publication number CN217417099U discloses a chain clamping device, which includes a housing, a first top, a second top, and a driving part. When the chain breaks, the distance between the first slider and the second slider is adjusted through the driving part, so that the first top and the second top respectively pass through the broken ends of the chain on both sides of the break, and the driving part is used to drive the first slider and the second slider to approach each other. Then, the two broken ends of the chain are pulled closer by the first top and the second top, and operations such as replacement and repair can be directly carried out. Moreover, during the repair and replacement process, there is no need for manual maintenance of the relative positions of the two broken ends of the chain, which reduces the operation difficulty and intensity of manual labor and improves the repair and replacement efficiency.

[0004] The above patent has the following problems:

[0005] This patent has some disadvantages when in use. For example, when the above chain clamping device is in use, although it can pull the two broken ends of the chain closer to each other, during the pulling process, the first top and the second top may fall off from the broken ends of the two chains, resulting in the user having to reinsert the first top and the second top into the broken ends of the two chains respectively, which reduces the working efficiency. In view of this, we propose a chain clamping device. Content of the Utility Model

[0006] The purpose of the utility model is to provide a chain clamping device to solve the problems raised in the above background technique.

[0007] In view of this, the utility model provides a chain clamping device, including the chain clamping device body, and further including:

[0008] Two pull rods, the two pull rods are arranged on the chain clamping device body, a rotation groove is opened at the top end of the pull rod, and two limit blocks are rotatably connected in the rotation groove;

[0009] Two first sliding grooves, the two first sliding grooves are respectively formed in the two pull rods and are respectively communicated with the two rotating grooves. An extrusion block is slidably connected in the first sliding groove, and a threaded rod is threadedly connected in the extrusion block;

[0010] Two first rotating grooves, the two first rotating grooves are respectively formed in the two pull rods and are respectively communicated with the two first sliding grooves. Two rotating rods are respectively rotatably connected in the two first rotating grooves, and the tops of the two rotating rods respectively extend into the two first sliding grooves and are respectively fixed to the bottoms of the two threaded rods;

[0011] Two driving components, the two driving components are respectively located in the two pull rods and are used to drive the rotating rods to rotate.

[0012] Based on the above structure, by providing the rotating groove and the limiting block, it is ensured that the two limiting blocks can rotate in the rotating groove. By providing the first sliding groove and the extrusion block, it is ensured that the extrusion block can slide in the first sliding groove. By providing the first rotating groove and the rotating rod, it is ensured that the rotating rod can rotate in the first rotating groove. By providing the driving component and the threaded rod, it is ensured that the user can drive the rotating rod to rotate through the driving component, and the rotating rod drives the threaded rod to rotate. When the threaded rod rotates, the extrusion block will move under the action of the thread of the threaded rod, and the extrusion block will press against the two limiting blocks to prevent the two limiting blocks from rotating.

[0013] In the above technical solution, further, the driving component includes:

[0014] A second rotating groove, the second rotating groove is formed in the pull rod and is communicated with the first rotating groove. A first gear is rotatably connected in the second rotating groove, and the top of the first gear extends into the first rotating groove and is fixed to the rotating rod;

[0015] A third rotating groove, the third rotating groove is formed in the pull rod and is communicated with the second rotating groove. A second gear meshing with the first gear is rotatably connected in the third rotating groove;

[0016] An annular groove, the annular groove is formed on the circumference of the pull rod and is communicated with the third rotating groove. A toothed ring meshing with the second gear is rotatably connected in the annular groove;

[0017] A fixing component, the fixing component is located in the pull rod and is used to fix the toothed ring.

[0018] In this technical solution, it is ensured that multiple limiting blocks can be respectively fixed in the two rotating grooves and cannot move. At the same time, the two pull rods will also be restricted at both ends of the chain break and cannot move.

[0019] In the above technical solution, further, the fixing component includes:

[0020] A second sliding groove is formed in the pull rod and is connected to the annular groove. A plug rod is slidably connected in the second sliding groove, and one end of the plug rod penetrates through the toothed ring and extends into the toothed ring for plug-in cooperation with the toothed ring. A spring fixed to the inner wall of the second sliding groove is fixedly connected to the plug rod.

[0021] In this technical solution, it is ensured that the toothed ring can be fixed in the annular groove and cannot move.

[0022] In the above technical solution, further, the plug rod is in an "L" shape.

[0023] In this technical solution, it is ensured that the user can move one end of the plug rod by driving the other end of the plug rod.

[0024] In the above technical solution, further, the top end of the first gear is rotatably connected to the first rotating groove.

[0025] In this technical solution, it is ensured that the top end of the first gear can rotate normally in the first rotating groove.

[0026] In the above technical solution, further, one end of the rotating rod is rotatably connected to the first sliding groove.

[0027] In this technical solution, it is ensured that one end of the rotating rod can rotate normally in the first sliding groove.

[0028] In the above technical solution, further, the threaded rod is located in the first sliding groove and is rotatably connected to the first sliding groove.

[0029] In this technical solution, it is ensured that the threaded rod can rotate normally in the first sliding groove.

[0030] The beneficial effects of the present utility model are as follows:

[0031] 1. For this chain clamping device, through the provided rotating groove and limiting blocks, it is ensured that the two limiting blocks can rotate in the rotating groove. Through the provided first sliding groove and extrusion block, it is ensured that the extrusion block can slide in the first sliding groove. Through the provided first rotating groove and rotating rod, it is ensured that the rotating rod can rotate in the first rotating groove. Through the provided driving component and threaded rod, it is ensured that the user can drive the rotating rod to rotate through the driving component, and the rotating rod drives the threaded rod to rotate. When the threaded rod rotates, the extrusion block will move under the action of the thread of the threaded rod, and the extrusion block will press against the two limiting blocks to prevent the two limiting blocks from rotating, solving the problem that during the pulling process of the chain clamping device, the first top end and the second top end may fall off from the broken ends of the two chains, resulting in the user needing to reinsert the first top end and the second top end into the broken ends of the two chains respectively, reducing the working efficiency.

[0032] 2. The chain clamping device ensures that the user can fix the toothed ring through the fixed component, preventing the toothed ring from rotating when the user accidentally touches it, by means of the provided fixed component and toothed ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is the overall structural schematic diagram of the present utility model;

[0034] Figure 2 is the exploded structural schematic diagram of a part of the present utility model;

[0035] Figure 3 is one of the internal structural schematic diagrams of the pull rod of the present utility model;

[0036] Figure 4 is the other internal structural schematic diagram of the pull rod of the present utility model;

[0037] Figure 5 is Figure 4 the enlarged structural schematic diagram at A in

[0038] The markings in the figure are shown as:

[0039] 1. Chain clamping device body; 2. Pull rod; 3. Rotation groove; 4. Limit block; 5. First chute; 6. Extrusion block; 7. Threaded rod; 8. First rotation groove; 9. Rotating rod; 10. Second rotation groove; 11. First gear; 12. Third rotation groove; 13. Second gear; 14. Annular groove; 15. Toothed ring; 16. Second chute; 17. Insert rod; 18. Spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0040] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope protected by the present application.

[0041] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments of the present application. For the convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed herein, any specific values should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters in the following drawings denote like items, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0042] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects and are not used to describe a specific order or sequence. It should be understood that such data may be interchanged where appropriate so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of the same type, and the number of objects is not limited. For example, the first object may be one or more. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / " generally indicates an "or" relationship between the associated objects before and after.

[0043] It should be noted that in the description of the present application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal", and "top, bottom" and the like generally indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description. Without contrary description, these directional terms do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present application; the directional terms "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0044] It should be noted that in this application, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the presence of additional identical elements in the process, method, article or device comprising such element. In addition, it should be pointed out that the methods and devices in the embodiments of this application are not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the reverse order according to the functions involved. For example, the described methods may be performed in a different order than described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0045] Embodiment 1:

[0046] Please refer to Figure 1 - Figure 5 As shown, this embodiment provides a chain clamping device, including a chain clamping device body 1, and further including:

[0047] Two pull rods 2 are provided on the chain clamping device body 1. A rotation groove 3 is provided at the top of the pull rod 2, and two limit blocks 4 are rotatably connected in the rotation groove 3;

[0048] Two first sliding grooves 5 are respectively provided in the two pull rods 2 and are respectively communicated with the two rotation grooves 3. An extrusion block 6 is slidably connected in the first sliding groove 5, and a threaded rod 7 is threadedly connected in the extrusion block 6;

[0049] Two first rotation grooves 8 are respectively provided in the two pull rods 2 and are respectively communicated with the two first sliding grooves 5. Two rotating rods 9 are respectively rotatably connected in the two first rotation grooves 8, and the tops of the two rotating rods 9 respectively extend into the two first sliding grooves 5 and are respectively fixed to the bottoms of the two threaded rods 7;

[0050] Two driving components are respectively located in the two pull rods 2 and are used to drive the rotating rod 9 to rotate.

[0051] Embodiment 2:

[0052] This embodiment provides a chain clamping device. In addition to including the technical solutions of the above embodiment, it further has the following technical features. The driving component includes:

[0053] The second rotating groove 10 is opened in the pull rod 2 and is connected to the first rotating groove 8. A first gear 11 is rotatably connected in the second rotating groove 10, and the top end of the first gear 11 extends into the first rotating groove 8 and is fixed to the rotating rod 9.

[0054] The third rotating groove 12 is opened in the pull rod 2 and is connected to the second rotating groove 10. A second gear 13 meshing with the first gear 11 is rotatably connected in the third rotating groove 12.

[0055] The annular groove 14 is opened on the circumferential side of the pull rod 2 and is connected to the third rotating groove 12. A toothed ring 15 meshing with the second gear 13 is rotatably connected in the annular groove 14.

[0056] The fixing component is located in the pull rod 2 and is used to fix the toothed ring 15.

[0057] Among them, when in use, the user rotates the two toothed rings 15 by hand, so that the toothed ring 15 drives the second gear 13 to rotate in the third rotating groove 12, and the second gear 13 drives the first gear 11 to rotate in the second rotating groove 10. When the second rotating groove 10 rotates, the second rotating groove 10 will drive the rotating rod 9 to rotate in the first rotating groove 8, and the rotating rod 9 will drive the threaded rod 7 to rotate in the first sliding groove 5, so that the extrusion block 6 moves upward along the first sliding groove 5 under the action of the thread of the threaded rod 7. When the extrusion block 6 moves to a position where it cannot move, the extrusion block 6 will tightly abut against the corresponding two limiting blocks 4, ensuring that the multiple limiting blocks 4 can be respectively fixed in the two rotating grooves 3 and cannot move. At the same time, the two pull rods 2 will also be restricted and cannot move at both ends of the chain fracture.

[0058] Embodiment 3:

[0059] This embodiment provides a chain clamping device. In addition to including the technical solutions of the above embodiment, it also has the following technical features. The fixing component includes:

[0060] The second sliding groove 16 is opened in the pull rod 2 and is connected to the annular groove 14. A plug rod 17 is slidably connected in the second sliding groove 16, and one end of the plug rod 17 penetrates through the toothed ring 15 and extends into the toothed ring 15 for plug-in cooperation with the toothed ring 15. A spring 18 fixed to the inner wall of the second sliding groove 16 is fixedly connected to the plug rod 17.

[0061] Among them, when the user needs to rotate the two toothed rings 15, the user pulls the two inserting rods 17 by hand, so that one ends of the two inserting rods 17 respectively enter the two second sliding grooves 16 from inside the two toothed rings 15 and compress the two springs 18 respectively. At this time, the fixation of the two toothed rings 15 is released. When the user needs to fix the two toothed rings 15, the user releases the hands pulling the two inserting rods 17, and one ends of the two inserting rods 17 are respectively inserted into the two toothed rings 15 under the action of the restoring forces of the two springs 18, and the two toothed rings 15 are respectively fixed in the two annular grooves 14, ensuring that the toothed rings 15 can be fixed in the annular grooves 14 and cannot move.

[0062] Embodiment 4:

[0063] This embodiment provides a chain clamping device. In addition to including the technical solutions of the above embodiments, it further has the following technical features: the inserting rod 17 is in an "L" shape.

[0064] Among them, it is ensured that the user can move one end of the inserting rod 17 by driving the other end of the inserting rod 17.

[0065] Embodiment 5:

[0066] This embodiment provides a chain clamping device. In addition to including the technical solutions of the above embodiments, it further has the following technical features: the top end of the first gear 11 is rotationally connected to the first rotating groove 8.

[0067] Among them, it is ensured that the top end of the first gear 11 can rotate normally in the first rotating groove 8.

[0068] Embodiment 6:

[0069] This embodiment provides a chain clamping device. In addition to including the technical solutions of the above embodiments, it further has the following technical features: one end of the rotating rod 9 is rotationally connected to the first sliding groove 5.

[0070] Among them, it is ensured that one end of the rotating rod 9 can rotate normally in the first sliding groove 5.

[0071] Embodiment 7:

[0072] This embodiment provides a chain clamping device. In addition to including the technical solutions of the above embodiments, it further has the following technical features: the threaded rod 7 is located in the first sliding groove 5 and is rotationally connected to the first sliding groove 5.

[0073] Among them, it is ensured that the threaded rod 7 can rotate normally in the first sliding groove 5.

[0074] In use, the user inserts multiple limiting blocks 4 into both ends of the chain fracture opening by hand. Subsequently, the user rotates multiple limiting blocks 4 by hand, causing the corresponding two limiting blocks 4 to rotate in opposite directions. When the multiple limiting blocks 4 rotate to the appropriate positions, the user pulls two insertion rods 17 by hand, allowing one end of each of the two insertion rods 17 to enter two second sliding grooves 16 from within two toothed rings 15 respectively and compress two springs 18. At this time, the fixation of the two toothed rings 15 is released. Subsequently, the user rotates the two toothed rings 15 by hand, causing the toothed rings 15 to drive the second gear 13 to rotate within the third rotation groove 12, and the second gear 13 to drive the first gear 11 to rotate within the second rotation groove 10. When the second rotation groove 10 rotates, the second rotation groove 10 will drive the rotating rod 9 to rotate within the first rotation groove 8, causing the rotating rod 9 to drive the threaded rod 7 to rotate within the first sliding groove 5, and the extrusion block 6 to move upward along the first sliding groove 5 under the action of the thread of the threaded rod 7. When the extrusion block 6 moves to a position where it cannot move further, the extrusion block 6 will tightly abut against the corresponding two limiting blocks 4, ensuring that the multiple limiting blocks 4 can be respectively fixed within the two rotation grooves 3 and cannot move. At the same time, the two pull rods 2 will also be restricted from moving within both ends of the chain fracture opening. Subsequently, the user releases the hands pulling the two insertion rods 17, allowing one end of each of the two insertion rods 17 to be inserted into the two toothed rings 15 respectively under the action of the rebounding force of the two springs 18, fixing the two toothed rings 15 within the two annular grooves 14 respectively, and ensuring that the toothed rings 15 can be fixed within the annular grooves 14 and cannot move.

[0075] The embodiments of the present application have been described above in conjunction with the accompanying drawings. Without conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application is not limited to the above specific implementation manners. The above specific implementation manners are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all belong to the protection scope of the present application.

Claims

1. A chain clamping device, comprising a chain clamping device body (1), characterized in that: Also includes: Two pull rods (2), the two pull rods (2) are arranged on the chain clamping device body (1), the top ends of the pull rods (2) are provided with rotation grooves (3), and two limit blocks (4) are rotatably connected in the rotation grooves (3); Two first chutes (5), the two first chutes (5) are respectively opened in the two pull rods (2) and are respectively connected to the two rotating grooves (3); an extrusion block (6) is slidably connected in the first chutes (5), and the extrusion block (6) is internally threadedly connected to the threaded rod (7); Two first rotating grooves (8), the two first rotating grooves (8) are respectively opened in the two pull rods (2) and are respectively connected to the two first sliding grooves (5), the two first rotating grooves (8) are respectively rotatably connected to two rotating rods (9), and the top ends of the two rotating rods (9) respectively extend into the two first sliding grooves (5) and are respectively fixed to the bottom ends of the two threaded rods (7); Two driving assemblies are respectively located in the two pull rods (2) and are used to drive the rotating rod (9) to rotate.

2. A chain clamping device according to claim 1, characterized in that: The drive assembly includes: A second rotating groove (10), the second rotating groove (10) is opened in the pull rod (2) and is connected to the first rotating groove (8), a first gear (11) is rotatably connected in the second rotating groove (10), and the top end of the first gear (11) extends into the first rotating groove (8) and is fixed to the rotating rod (9); a third rotating groove (12), the third rotating groove (12) being provided in the pull rod (2) and communicating with the second rotating groove (10), wherein a second gear (13) meshing with the first gear (11) is rotatably connected in the third rotating groove (12); an annular groove (14), the annular groove (14) being formed on the circumferential side of the pull rod (2) and being connected to the third rotating groove (12), a gear ring (15) being rotatably connected in the annular groove (14) and meshing with the second gear (13); A fixing assembly is located inside the pull rod (2) and is used to fix the gear ring (15).

3. A chain clamping device according to claim 2, characterized in that: The fixing assembly includes: A second slide groove (16), the second slide groove (16) is provided in the pull rod (2) and is connected to the annular groove (14), an insert rod (17) is slidably connected in the second slide groove (16), and one end of the insert rod (17) passes through the gear ring (15) and extends into the gear ring (15) to be plugged into the gear ring (15), and a spring (18) fixed to the inner wall of the second slide groove (16) is fixedly connected to the insert rod (17).

4. A chain clamping device according to claim 3, characterized in that: The insertion rod (17) is in an L-shape.

5. A chain clamping device according to claim 2, characterized in that: The top end of the first gear (11) is rotationally connected to the first rotation groove (8).

6. A chain clamping device according to claim 1, characterized in that: One end of the rotating rod (9) is rotatably connected to the first sliding groove (5).

7. A chain clamping device according to claim 1, characterized in that: The threaded rod (7) is located in the first sliding groove (5) and is rotationally connected to the first sliding groove (5).

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