Chain fixing device

Abstract

The utility model discloses a chain fixing device which comprises a lock chain, a fixing structure used for fixing the position of the lock chain is arranged at the bottom end of the lock chain, the fixing structure comprises a fixing plate, the bending section of the fixing plate is arranged to be in a herringbone shape, and a cross connecting hole is formed in the top end of the fixing plate. The bottom of the lock chain is connected with the inner wall of the cross-shaped connecting hole in a sliding and penetrating mode, a connecting structure used for positioning the position of the fixing plate is arranged at the top end of the fixing plate, and a locking structure used for locking the position of the lock chain is arranged at the bottom end of the fixing plate. Meanwhile, a triangular stress area is formed through matching of the connecting structure and the fixing plate with the inverted-Y-shaped bending section arranged in the fixing structure, when the chain is subjected to acting force in different directions, the position of the chain can be stably fixed, and the situation that the chain is loosened in connection, and normal chain position fixing is affected is avoided.

Description

Technical Field

[0001] The utility model relates to the field of chain fixing, in particular to a chain fixing device. Background Art

[0002] The chain ground fixing device is a device used to fix the chain, usually used in lifting, towing or transmission systems. It usually passes the fixing bolts directly through the chain gap and cooperates with the threaded sleeve to fix the chain to the ground. In this way, when the chain is subjected to different reverse forces, the chain is only subjected to the tension of a single fixing bolt, and the fixing force has a single direction. During long-term use, the fixing bolts become loose, causing the chain to fall off, and the chain cannot be stably fixed. Utility Model Content

[0003] The purpose of the utility model is to provide a chain fixing device to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a chain fixing device, comprising a chain, a fixing structure for fixing the position of the chain is arranged at the bottom end of the chain, the fixing structure comprises a fixing plate, the cross-sectional shape of the fixing plate is arranged to be a "human" shape, a cross connecting hole is opened at the top of the fixing plate, the bottom of the chain and the inner wall of the cross connecting hole are slidably connected, the top of the fixing plate is provided with a connecting structure for positioning the fixing plate position, and the bottom of the fixing plate is provided with a locking structure for locking the position of the chain.

[0005] Preferably, the locking structure includes a locking rod, a locking hole is opened on one side of the bottom of the cross connecting hole, and the locking rod is sequentially inserted into the bottom of the chain and the inner wall of the locking hole.

[0006] Preferably, a first sliding groove is opened on the other side of the bottom of the cross connection hole, and a spring is arranged on the side of the locking rod away from the locking hole, and the spring is arranged inside the first sliding groove.

[0007] Preferably, a guide rod is fixedly connected inside the first sliding groove and on one side away from the locking rod, a guide hole is horizontally penetrated through the middle of the locking rod, and the guide rod is sequentially inserted and connected to the inside of the spring and the inner wall of the guide hole.

[0008] Preferably, a second sliding groove is opened at the bottom end of the fixed plate, the top end of the second sliding groove and the bottom end of the first sliding groove penetrate each other, the bottom end of the locking rod is fixedly connected with a pulling block, and the outer wall of the pulling block and the inner wall of the second sliding groove are slidably connected.

[0009] Preferably, the connection structure includes a plurality of implosion expansion screws evenly spaced around, a plurality of fixing holes evenly spaced around the top of the fixing plate, the outer wall of the implosion expansion screw and the inner wall of the fixing hole are slidably connected, and a threaded sleeve is provided on the bottom threaded sleeve of the implosion expansion screw.

[0010] Technical effects and advantages of the utility model:

[0011] The utility model arranges a corresponding fixing structure at the bottom end of the chain, and cooperates with a fixing plate whose top section is a "human" shape arranged in the connecting structure and the fixing structure to form a triangular force-bearing area. When the chain is subjected to forces in different directions, the position of the chain can be stably fixed to prevent the chain connection from loosening and affecting the normal position fixation of the chain. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0013] Figure 2 This is a top view of the fixed plate structure of the utility model.

[0014] Figure 3 It is a sectional view of the overall structure of the utility model.

[0015] Figure 4 This is a cross-sectional view of the structure of the connection between the locking rod and the fixing plate of the utility model.

[0016] In the figure: 1, chain; 2, fixing plate; 201, locking hole; 202, first sliding groove; 203, second sliding groove; 3, cross connecting hole; 4, locking rod; 401, guide hole; 5, spring; 6, guide rod; 7, pulling block; 8, fixing hole; 9, implosion expansion screw; 10, screw sleeve. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] The utility model provides Figure 1-4A chain fixing device is shown, comprising a chain 1, a fixing structure for fixing the position of the chain 1 is arranged at the bottom end of the chain 1, the fixing structure comprises a fixing plate 2, the cross-sectional shape of the fixing plate 2 is arranged to be a "human" shape, a cross connecting hole 3 is opened at the top of the fixing plate 2, the bottom of the chain 1 and the inner wall of the cross connecting hole 3 are slidably connected, a connecting structure for locating the position of the fixing plate 2 is arranged at the top end of the fixing plate 2, and a locking structure for locking the position of the chain 1 is arranged at the bottom end of the fixing plate 2.

[0019] It should be noted that by arranging a corresponding fixing structure at the bottom end of the chain 1, and by cooperating with the connecting structure and the fixing plate 2 whose top profile is a "human" shape arranged in the fixing structure, a triangular force-bearing area is formed. When the chain 1 is subjected to forces in different directions, the position of the chain 1 can be stably fixed to avoid loosening of the chain 1 connection and affecting the normal position fixation of the chain 1. Furthermore, the chain 1 as a whole is composed of a plurality of elliptical circular rings arranged in a cross-shaped manner, and its top-view shape is the same as the top-section shape of the cross connecting hole 3. The horizontal plane position of the chain 1 is fixed by passing the chain 1 through the cross connecting hole 3 to avoid radial rotation at the connection between the chain 1 and the fixing plate 2 under the action of external force.

[0020] The locking structure includes a locking rod 4 . A locking hole 201 is formed on one side of the bottom of the cross connection hole 3 . The locking rod 4 is sequentially inserted through the bottom of the chain 1 and the inner wall of the locking hole 201 .

[0021] Furthermore, the locking rod 4 is inserted into the locking hole 201 through the chain 1 in sequence to fix the vertical position of the chain 1, thereby preventing it from being separated from the fixing plate 2.

[0022] A first sliding groove 202 is formed at the other side of the bottom of the cross connection hole 3 , and a spring 5 is disposed on the side of the locking rod 4 away from the locking hole 201 . The spring 5 is disposed inside the first sliding groove 202 .

[0023] Furthermore, the locking rod 4 is cylindrical as a whole. When the chain 1 is pulled by a force, the locking rod 4 can be evenly dispersed. It should be noted that one side of the spring 5 is welded and fixed to the locking rod 4, and the other side is welded and fixed to the inner wall of the first sliding groove 202. The locking rod 4 is pushed by the spring 5 to stably insert the locking rod 4 into the locking hole 201. At the same time, since the chain 1 can only move in the vertical direction in the cross connecting hole 3, the locking rod 4 will not be subjected to horizontal force. Therefore, the locking rod 4 will not retreat to the first sliding groove 202 under the action of the chain 1, thereby preventing the chain 1 from falling off.

[0024] A guide rod 6 is fixedly connected inside the first sliding groove 202 and on one side away from the locking rod 4. A guide hole 401 is horizontally penetrated through the middle of the locking rod 4. The guide rod 6 is inserted and connected to the inside of the spring 5 and the inner wall of the guide hole 401 in sequence.

[0025] Furthermore, the guide rod 6 and the inner wall of the first sliding groove 202 are also welded and fixed, and the horizontal lateral position of the locking rod 4 is further limited by sliding and interlacing connection between the guide rod 6 and the guide hole 401 in the middle of the locking rod 4 to prevent it from tilting due to force.

[0026] A second sliding groove 203 is provided at the bottom end of the fixed plate 2, the top end of the second sliding groove 203 and the bottom end of the first sliding groove 202 penetrate each other, a pulling block 7 is fixedly connected to the bottom end of the locking rod 4, and the outer wall of the pulling block 7 and the inner wall of the second sliding groove 203 are slidably interlaced.

[0027] Furthermore, by pushing the pulling block 7, the locking rod 4 is driven to squeeze the spring 5, so that the locking rod 4 retreats into the first sliding groove 202, and the unlocking is completed, and the chain 1 can be freely pulled out. It should be noted that the diameter of the second sliding groove 203 is smaller than that of the first sliding groove 202, so the locking rod 4 and the spring 5 will not detach from the second sliding groove 203.

[0028] The connection structure includes a plurality of implosion expansion screws 9 evenly spaced around, a plurality of fixing holes 8 evenly spaced around the top of the fixing plate 2, the outer wall of the implosion expansion screw 9 and the inner wall of the fixing hole 8 are slidably connected, and a threaded sleeve 10 is provided on the bottom thread of the implosion expansion screw 9.

[0029] Furthermore, the fixing plate 2 as a whole is fixed on the ground by first installing the screw sleeve 10, and then using the implosion expansion screw 9 to pass through the fixing hole 8 opened on the fixing plate 2 and connect it with the screw sleeve 10 through a thread, so as to fix the position of the fixing plate 2.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A chain fixing device, comprising a chain (1), characterized in that: The bottom end of the chain (1) is provided with a fixing structure for fixing the position of the chain (1), the fixing structure comprising a fixing plate (2), the cross-sectional shape of the fixing plate (2) being arranged in a shape similar to a "human" shape, the top end of the fixing plate (2) being provided with a cross connection hole (3), the bottom of the chain (1) and the inner wall of the cross connection hole (3) being slidably interlaced and connected, the top end of the fixing plate (2) being provided with a connection structure for locating the position of the fixing plate (2), and the bottom end of the fixing plate (2) being provided with a locking structure for locking the position of the chain (1).

2. A chain fixing device according to claim 1, characterized in that: The locking structure comprises a locking rod (4), a locking hole (201) is provided on one side of the bottom of the cross connection hole (3), and the locking rod (4) is sequentially inserted into the bottom of the chain (1) and the inner wall of the locking hole (201).

3. A chain fixing device according to claim 2, characterized in that: A first sliding groove (202) is provided on the other side of the bottom of the cross connection hole (3), and a spring (5) is provided on the side of the locking rod (4) away from the locking hole (201), wherein the spring (5) is arranged inside the first sliding groove (202).

4. A chain fixing device according to claim 3, characterized in that: A guide rod (6) is fixedly connected inside the first sliding groove (202) and on a side away from the locking rod (4); a guide hole (401) is horizontally and laterally penetrated through the middle of the locking rod (4); and the guide rod (6) is sequentially inserted and connected to the inside of the spring (5) and the inner wall of the guide hole (401).

5. A chain fixing device according to claim 3, characterized in that: A second sliding groove (203) is provided at the bottom end of the fixed plate (2), the top end of the second sliding groove (203) and the bottom end of the first sliding groove (202) penetrate each other, and a pulling block (7) is fixedly connected to the bottom end of the locking rod (4), and the outer wall of the pulling block (7) and the inner wall of the second sliding groove (203) are slidably interlaced and connected.

6. A chain fixing device according to claim 1, characterized in that: The connection structure comprises a plurality of implosion expansion screws (9) uniformly spaced and arranged around the top of the fixing plate (2), a plurality of fixing holes (8) uniformly spaced and arranged around the top, the outer wall of the implosion expansion screw (9) and the inner wall of the fixing hole (8) are slidably interlaced and connected, and a threaded sleeve (10) is provided on the bottom thread of the implosion expansion screw (9).

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