Emergency manual release device for chain block

Abstract

The utility model discloses an emergency manual release device for a chain block, and relates to the technical field of emergency release of chain blocks. Comprising a winding rod, connecting pieces distributed in a mirror image mode are arranged at the two ends of the winding rod, clamping grooves distributed in an annular array mode are formed in the two ends of the winding rod, threaded rods distributed in an annular array mode are rotationally arranged in the connecting pieces, the threaded rods are sleeved with sliding blocks in a threaded mode, moving plates are fixedly arranged on one sides of the sliding blocks, and clamping blocks are fixedly arranged on the sides, close to each other, of the moving plates; a first connecting plate and a second connecting plate are fixedly arranged on the outer lower surface of the connecting piece, a first splicing plate is fixedly arranged at the bottom end of the first connecting plate, a second splicing plate is fixedly arranged at the bottom end of the second connecting plate, a rotating rod is rotatably inserted into the first splicing plate, and a mounting rod is arranged at the bottom end of the rotating rod; the problem that a zipper is clamped by a worker can be conveniently solved, during use, physical output of the worker is reduced, the hands of the worker are prevented from being injured, and the phenomenon that the zipper cannot be pulled is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of emergency release of hand chain hoists, in particular to an emergency manual release device of a hand chain hoist. Background Art

[0002] Hand chain hoist is also called fairy hoist, chain hoist, fall chain, jinbulu, manual hoist. It is a manual lifting machinery that is simple to use and easy to carry. It is also called "chain hoist" or "fall chain". It is suitable for short-distance lifting of small equipment and goods.

[0003] During the use of hand chain hoists, it is easy for the hand chain to get stuck due to a failure of the internal brake system, causing the goods to be suspended in the air and unable to be released. When the hand chain gets stuck, the staff usually solves the problem of the hand chain by holding the hand chain with both hands and pulling it down hard. However, in the actual process, it will not only greatly consume the physical strength of the staff, but also cause injuries to the staff's hands. At the same time, there will be many phenomena that cannot be pulled manually. Utility Model Content

[0004] In order to solve the problem of a hand chain getting stuck, the utility model aims to provide an emergency manual release device for a hand chain hoist.

[0005] In order to solve the above technical problems, the utility model adopts the following technical scheme: it includes a winding rod, wherein both ends of the winding rod are provided with connecting pieces distributed in a mirror image, and both ends of the winding rod are provided with card grooves distributed in a ring array, a screw rod distributed in a ring array is rotatably provided in the connecting piece, and the external thread sleeve of the screw rod is provided with a slider, a movable plate is fixedly provided on one side of the slider, and a card block is fixedly provided on the side of the movable plate close to each other, and a first connecting plate and a second connecting plate are respectively fixedly provided on the external lower surface of the connecting piece, a first splicing plate is fixedly provided on the bottom end of the first connecting plate, and a second splicing plate is fixedly provided on the bottom end of the second connecting plate, a rotating rod is rotatably inserted in the first splicing plate, and a mounting rod is provided at the bottom end of the rotating rod, and a cylinder is provided at the bottom end of the mounting rod, and the driving end of the cylinder is coaxially and fixedly installed with the mounting rod.

[0006] Preferably, a connecting rod is fixedly provided at one end of the first splicing plate close to the second splicing plate, and a connecting groove is formed at one end of the second splicing plate close to the first splicing plate, and the connecting rod is used in conjunction with the connecting groove.

[0007] Compared with the prior art, the beneficial effects of the utility model are:

[0008] 1. This application can help workers solve the problem of hand zippers getting stuck. When in use, it saves workers' physical energy, avoids injuries to their hands, and prevents the phenomenon of being unable to pull.

[0009] 2. The present application can achieve the effect of conveniently winding the hand chain around the winding rod, and can be adapted to different hand chain hoists, thereby improving the versatility of the present device. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0011] Figure 1 It is a schematic diagram of the structure of the utility model.

[0012] Figure 2 It is a structural schematic diagram of the card slot in the utility model.

[0013] Figure 3 It is a schematic diagram of the structure after the connecting piece in the utility model is disassembled.

[0014] Figure 4 It is a schematic diagram of the connection structure between the guide rod and the guide block in the utility model.

[0015] Figure 5 It is a structural schematic diagram of the connecting rod and the connecting groove in the utility model.

[0016] Figure 6 It is a structural schematic diagram of the bolt and the thread groove in the utility model.

[0017] Figure 7 It is a schematic diagram of the connection structure between the stabilizing plate and the stabilizing groove in the utility model.

[0018] In the figure: 1. winding rod; 2. connecting piece; 21. slot; 22. screw; 23. slider; 24. moving plate; 25. block; 26. bevel gear; 210. driving rod; 220. first turning handle; 230. guide block; 240. guide rod; 3. first connecting plate; 31. second connecting plate; 32. first splicing plate; 33. second splicing plate; 34. connecting rod; 35. connecting groove; 4. rotating rod; 41. mounting rod; 42. cylinder; 410. stabilizing plate; 420. stabilizing groove; 430. second turning handle; 5. bolt; 51. threaded groove. DETAILED DESCRIPTION

[0019] 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.

[0020] Example: Figure 1-7 As shown, the utility model provides an emergency manual release device for a hand chain hoist, comprising a winding rod 1, wherein both ends of the winding rod 1 are provided with connecting members 2 distributed in a mirror image, and both ends of the winding rod 1 are provided with card slots 21 distributed in a ring array, and a screw rod 22 distributed in a ring array is rotatably provided in the connecting member 2, and an external thread sleeve of the screw rod 22 is provided with a slider 23, and a moving plate 24 is fixedly provided on one side of the slider 23, and a card block 25 is fixedly provided on the side of the moving plate 24 close to each other, and a first connecting plate 3 and a second connecting plate 31 are respectively fixedly provided on the outer lower surface of the connecting member 2, a first splicing plate 32 is fixedly provided at the bottom end of the first connecting plate 3, and a second splicing plate 33 is fixedly provided at the bottom end of the second connecting plate 31, and a rotating rod 4 is rotatably inserted in the first splicing plate 32, and a mounting rod 41 is provided at the bottom end of the rotating rod 4, and a cylinder 42 is provided at the bottom end of the mounting rod 41, and a driving end of the cylinder 42 is coaxially fixedly installed with the mounting rod 41.

[0021] A connecting rod 34 is fixedly provided at one end of the first splicing plate 32 close to the second splicing plate 33 , and a connecting groove 35 is formed at one end of the second splicing plate 33 close to the first splicing plate 32 . The connecting rod 34 cooperates with the connecting groove 35 for use.

[0022] A bolt 5 is fixedly disposed at the bottom end of the rotating rod 4 , and a thread groove 51 is formed at the top of the mounting rod 41 . The bolt 5 cooperates with the thread groove 51 for use.

[0023] One end of the screw rods 22 close to each other rotates and penetrates through an inner side wall of the connecting member 2 . A bevel gear 26 is fixedly disposed on one end of the screw rods 22 close to each other, and the bevel gears 26 are meshedly connected with each other.

[0024] A driving rod 210 is fixedly provided at one end of the screw rod 22 away from the bevel gear 26 . The driving rod 210 rotates and passes through a side wall of the connecting member 2 . A first turning handle 220 is fixedly provided at one end of the driving rod 210 away from the screw rod 22 .

[0025] A guide block 230 is fixedly provided on one side of the slider 23, a guide rod 240 is slidably inserted in the guide block 230, and both ends of the guide rod 240 are fixedly installed on the inner wall of the connecting member 2; by setting the guide block 230 and the guide rod 240, the slider 23 is limited, so that the slider 23 can move stably.

[0026] A second turning handle 430 is fixedly disposed on one end of the rotating rod 4 away from the mounting rod 41 .

[0027] The external fixed sleeve of the rotating rod 4 is provided with a stabilizing disk 410, and a stabilizing groove 420 is opened in the first splicing plate 32, and the stabilizing disk 410 is rotatably set in the stabilizing groove 420; by setting the stabilizing disk 410 and the stabilizing groove 420, the effect of reinforcing and limiting the rotating rod 4 is achieved, so that the rotating rod 4 can rotate stably.

[0028] Working principle: First, when the hand chain of the hand chain hoist is stuck, a section of the hand chain is wound around the winding rod 1, and the two ends of the winding rod 1 are inserted into the connecting piece 2, and the connecting rod 34 is inserted into the connecting groove 35. Then, the driving rod 210 is driven to rotate by driving the first turning handle 220, and the driving rod 210 drives one of the screw rods 22 to rotate, and one of the screw rods 22 drives the other screw rods 22 to rotate through the bevel gear 26 during the rotation process. The screw rod 22 drives the slider 23 to move during the rotation process, and the slider 23 drives the moving plate 24 to move, and the moving plate 24 drives the block 25 to move. When the block 25 completely enters the slot 21, the driving force on the first turning handle 220 is removed. At this time, the connecting rod 34 also completely enters the connecting groove 35, completing the installation and fixation between the connecting piece 2 and the winding rod 1. Subsequently, the cylinder 42 is moved upward, and at the same time, the rotating rod 4 is driven to rotate by driving the second turning handle 430, and the rotating rod 4 drives the bolt 5 to rotate. During the upward movement of the cylinder 42, the bolt 5 gradually enters the thread groove 51. When the bolt 5 completely enters the thread groove 51, the driving force of the second turning handle 430 is removed to complete the installation and fixation between the rotating rod 4 and the mounting rod 41. At this time, the cylinder 42 is started to drive the mounting rod 41 to move downward, and the mounting rod 41 drives the first splicing plate 32 and the second splicing plate 33 to move downward through the rotating rod 4, and the first splicing plate 32 and the second splicing plate 33 drive the first connecting plate 3 and the second connecting plate 31 to move downward, and the first connecting plate 3 and the second connecting plate 31 drive the winding rod 1 to move downward through the connecting piece 2, and the winding rod 1 drives the hand zipper to move downward to solve the problem of the hand zipper getting stuck.

[0029] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An emergency manual release device for a chain hoist, comprising a winding rod (1), Features: The two ends of the winding rod (1) are provided with connecting pieces (2) distributed in a mirror image, the two ends of the winding rod (1) are provided with grooves (21) distributed in an annular array, the connecting piece (2) is rotatably provided with a screw rod (22) distributed in an annular array, the external thread sleeve of the screw rod (22) is provided with a slider (23), a moving plate (24) is fixedly provided on one side of the slider (23), a blocking block (25) is fixedly provided on the side of the moving plate (24) close to each other, and the outer lower surface of the connecting piece (2) is respectively A first connecting plate (3) and a second connecting plate (31) are fixedly provided, a first splicing plate (32) is fixedly provided at the bottom end of the first connecting plate (3), a second splicing plate (33) is fixedly provided at the bottom end of the second connecting plate (31), a rotating rod (4) is rotatably inserted in the first splicing plate (32), a mounting rod (41) is provided at the bottom end of the rotating rod (4), a cylinder (42) is provided at the bottom end of the mounting rod (41), and a driving end of the cylinder (42) is coaxially fixedly installed with the mounting rod (41).

2. An emergency manual release device for a chain hoist as claimed in claim 1, It is characterized in that A connecting rod (34) is fixedly provided at one end of the first splicing plate (32) close to the second splicing plate (33), and a connecting groove (35) is provided at one end of the second splicing plate (33) close to the first splicing plate (32), and the connecting rod (34) and the connecting groove (35) are used in conjunction with each other.

3. An emergency manual release device for a chain hoist as claimed in claim 1, It is characterized in that A bolt (5) is fixedly provided at the bottom end of the rotating rod (4), a thread groove (51) is provided at the top of the mounting rod (41), and the bolt (5) is used in conjunction with the thread groove (51).

4. An emergency manual release device for a chain hoist as claimed in claim 1, It is characterized in that One end of the screw rod (22) close to each other rotates and penetrates through an inner side wall of the connecting member (2). A bevel gear (26) is fixedly arranged on one end of the screw rod (22) close to each other, and the bevel gears (26) are meshingly connected.

5. The emergency manual release device for a chain hoist as claimed in claim 1, It is characterized in that A driving rod (210) is fixedly provided at one end of one of the screw rods (22) away from the bevel gear (26); the driving rod (210) rotates and passes through a side wall of the connecting member (2); and a first turning handle (220) is fixedly provided at one end of the driving rod (210) away from the screw rod (22).

6. The emergency manual release device for a chain hoist as claimed in claim 1, It is characterized in that A guide block (230) is fixedly provided on one side of the sliding block (23), a guide rod (240) is slidably inserted in the guide block (230), and both ends of the guide rod (240) are fixedly mounted on the inner wall of the connecting piece (2).

7. The emergency manual release device for a chain hoist as claimed in claim 1, It is characterized in that A second turning handle (430) is fixedly provided on one end of the rotating rod (4) away from the mounting rod (41).

8. The emergency manual release device for a chain hoist as claimed in claim 1, It is characterized in that The outer fixed sleeve of the rotating rod (4) is provided with a stabilizing disk (410), a stabilizing groove (420) is opened in the first splicing plate (32), and the stabilizing disk (410) is rotatably arranged in the stabilizing groove (420).

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