Novel dustproof device for chain block

Abstract

The utility model discloses a novel dustproof device for a chain block, and relates to the technical field of dust prevention of chain blocks. The calabash cover comprises a calabash cover shell, two sides of the calabash cover shell are provided with hand zipper openings, one side of the calabash cover shell is fixedly provided with two fixing plates which are symmetrically distributed, a placing frame is fixedly installed between the two fixing plates, the top end of the placing frame is provided with a placing groove, the inner wall of the placing groove is provided with a connecting plate, and the connecting plate is connected with the calabash cover shell. A sponge is fixedly installed on the side, close to the gourd cover shell, of the connecting plate, an empty groove is formed in the side, close to the sponge, of the containing frame, a movable plate is slidably clamped in the position, located on one side of the connecting plate, of the interior of the containing frame, and the width of the containing groove is the sum of the width of the movable plate, the width of the connecting plate and the width of the sponge. According to the chain block, the hand zipper is cleaned, and dust on the hand zipper is prevented from entering the block housing to affect use of internal parts of the chain block.

Description

Technical Field

[0001] The utility model relates to the technical field of dust prevention for hand chain hoists, in particular to a novel dust prevention device for hand chain hoists. Background Art

[0002] Hand chain hoist is also called fairy hoist, chain hoist, chain hoist, chain hoist, manual hoist. It is a manual lifting machinery that is simple to use and easy to carry. It is also called "ring chain hoist" or "chain hoist". It has the characteristics of safety and reliability, simple maintenance, high mechanical efficiency, small hand chain tension, light weight and easy to carry, beautiful appearance, small size and durability. It is suitable for factories, mines, construction sites, docks, docks, warehouses, etc. for installing machines and lifting goods. Especially for open-air and powerless operations, it shows its superiority.

[0003] During the use of the hand chain hoist, the hand zipper will be dragged on the ground, causing the hand zipper to be stained with dust. This will easily cause the dust on the hand zipper to enter the inside of the hand chain hoist. If it is not cleaned for a long time, it will easily affect the use of the hand chain hoist. Moreover, when used outdoors, it suddenly rains. In the absence of a protective cover, rainwater can easily enter the interior of the hand chain hoist and cause damage to internal parts. Utility Model Content

[0004] In order to solve the problem that during the use of the hand chain hoist, the hand chain will be dragged on the ground, causing the hand chain to be stained with dust, which will easily cause the dust on the hand chain to enter the interior of the hand chain. If it is not cleaned for a long time, it will easily affect the use of the hand chain hoist, and when it is used outdoors and it rains suddenly, in the absence of a protective cover, rainwater will easily enter the interior of the hand chain hoist and cause damage to internal parts; the purpose of the utility model is to provide a new dustproof device for the hand chain hoist.

[0005] In order to solve the above technical problems, the utility model adopts the following technical scheme: a new dust-proof device for a hand-pulled hoist, comprising a hoist cover shell, hand zipper openings are provided on both sides of the gourd cover shell, two symmetrically distributed fixing plates are fixedly installed on one side of the gourd cover shell, a placement frame is fixedly installed between the two fixing plates, a placement groove is provided on the top of the placement frame, a connecting plate is provided on the inner wall of the placement groove, a sponge is fixedly installed on the side of the connecting plate close to the gourd cover shell, an empty groove is provided on the side of the placement frame close to the sponge, a movable plate is slidably provided on one side of the connecting plate inside the placement frame, the width of the placement groove is the sum of the widths of the movable plate, the connecting plate and the sponge, a threaded rod is fixedly installed on the side of the movable plate away from the connecting plate, the threaded rod is threadedly connected to the placement frame, and a rotating wheel is fixedly installed on the side of the threaded rod away from the movable plate.

[0006] Preferably, two symmetrically distributed protective covers are provided at the top of the gourd cover, wherein two symmetrically distributed first clamping blocks are fixedly installed on the inner side of one of the protective covers, and a first clamping groove for cooperating with the first clamping block is opened on one side of the other protective cover.

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

[0008] 1. This application realizes the cleaning of the hand zipper, preventing the dust on the hand zipper from entering the inside of the hoist cover and affecting the use of the internal parts of the hand hoist;

[0009] 2. The present invention protects the top of the hoist cover to prevent rain from entering the interior of the hand chain hoist when it rains suddenly when used outdoors, damaging the internal parts and affecting the use of the hand chain hoist. 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 schematic diagram of the internal structure of the placement frame in the utility model.

[0013] Figure 3 This is a schematic diagram of the disassembled structure of the protective cover in the utility model.

[0014] Figure 4 It is a schematic diagram of the internal structure of the fixed block in the utility model.

[0015] In the figure: 1. gourd cover; 10. hand zipper mouth; 2. fixing plate; 21. placement frame; 22. placement slot; 23. connecting plate; 24. sponge; 25. empty slot; 3. moving plate; 31. threaded rod; 32. rotating wheel; 4. protective cover; 41. first clamping block; 42. first clamping slot; 43. fixing block; 44. circular slot; 45. spring; 46. clamping column; 47. fixing slot; 48. guide rod; 49. handle; 5. pull ring; 6. baffle; 61. second clamping block; 62. second clamping slot; 63. anti-slip strip. DETAILED DESCRIPTION

[0016] 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.

[0017] Example: Figure 1-4 As shown, the utility model provides a novel dust-proof device for a hand chain hoist, comprising a hoist cover 1, both sides of the hoist cover 1 are provided with hand chain openings 10, one side of the hoist cover 1 is fixedly installed with two symmetrically distributed fixing plates 2, a placement frame 21 is fixedly installed between the two fixing plates 2, a placement groove 22 is provided at the top of the placement frame 21, a connecting plate 23 is provided on the inner wall of the placement groove 22, a sponge 24 is fixedly installed on the side of the connecting plate 23 close to the hoist cover 1, and an empty groove 25 is provided on the side of the placement frame 21 close to the sponge 24 A movable plate 3 is slidably mounted on one side of the connecting plate 23 inside the placement frame 21. The width of the placement groove 22 is the sum of the widths of the movable plate 3, the connecting plate 23 and the sponge 24. A threaded rod 31 is fixedly mounted on the side of the movable plate 3 away from the connecting plate 23. The threaded rod 31 is threadedly connected to the placement frame 21. A rotating wheel 32 is fixedly mounted on the side of the threaded rod 31 away from the movable plate 3. A pull ring 5 is fixedly mounted on the top of the connecting plate 23. By setting the pull ring 5, it is easier to take the connecting plate 23 and the sponge 24 out of the placement frame 21.

[0018] Two symmetrically distributed protective covers 4 are provided at the top of the gourd cover 1, two symmetrically distributed first clamping blocks 41 are fixedly mounted on the inner side of one of the protective covers 4, and a first clamping slot 42 for use with the first clamping block 41 is opened on one side of the other protective cover 4.

[0019] Two symmetrically distributed fixing blocks 43 are fixedly installed on the top of one of the protective covers 4, and a circular groove 44 is provided inside the fixing block 43. A spring 45 is fixedly installed on the lower surface of the inner wall of the circular groove 44, and a clamping column 46 is fixedly installed on the bottom end of the spring 45. A fixing groove 47 for cooperating with the clamping column 46 is penetrated through the middle of each first clamping block 41, and a guide rod 48 is fixedly installed on the top of the clamping column 46. The guide rod 48 is located inside the spring 45, and the guide rod 48 is slidably stuck in the fixing block 43. A handle 49 is rotatably sleeved on the top of the guide rod 48. By setting the handle 49, when the handle 49 is rotated, one side of the handle 49 is fitted with the fixing block 43, and at the same time, it is in the shape of a letter "I", and then the spring 45 loses resistance, and the spring 45 drives the clamping column 46 to move downward, so that the clamping column 46 is stuck into the corresponding fixing groove 47, so that the two protective covers 4 are fixed more stably.

[0020] A baffle 6 is provided at the top of the placement frame 21, and two symmetrically distributed second blocks 61 are fixedly installed at the bottom of the baffle 6. A second card slot 62 for use with the second card block 61 is opened on the upper surface of the placement frame 21. By setting the baffle 6, the placement frame 21 is dustproof to prevent dust from entering the placement frame 21 from the placement slot 22, causing the sponge 24 to become dirty before it is used. At the same time, through the cooperation of the second card block 61 and the second card slot 62, the baffle 6 is easily removed from the placement frame 21. A plurality of evenly distributed anti-slip strips 63 are fixedly installed on the top of the baffle 6. By setting the anti-slip strip 63, the friction between the hand and the baffle 6 is increased, making it easier to slide the baffle 6.

[0021] The handle 49 is made of plastic, which increases the comfort between the hand and the handle 49 and makes it easier to pull the guide rod 48. The diameter of each circular groove 44 is consistent with the diameter of the clamping column 46, and the diameter of the spring 45 is smaller than the diameters of the circular groove 44 and the clamping column 46, which makes it easier to contract the spring 45.

[0022] Working principle: In actual use, when the sponge 24 is installed, first, by rotating the rotating wheel 32, the threaded rod 31 is driven to rotate, so that the movable plate 3 is fitted with the inner wall of the placing frame 21, and then the sponge 24 and the connecting plate 23 are placed in the placing groove 22 in the placing frame 21, and then the rotating wheel 32 is reversed to drive the threaded rod 31 to reverse, so that the movable plate 3 moves in the opposite direction, and the connecting plate 23 is moved in the direction of the gourd cover 1, so that the sponge 24 passes through the empty groove 25, so that the sponge 24 is fitted with the hand zipper, so that the hand zipper is cleaned when the hand zipper is pulled, and at the same time, one side of the connecting plate 23 is fitted with the other side of the inner wall of the placing frame 21, and then the connecting plate 23 is fixed by the cooperation of the movable plate 3 and the threaded rod 31, so as to prevent the connecting plate 23 and the sponge 24 from shaking when the sponge 24 is wiping the hand zipper;

[0023] When the protective cover 4 needs to be installed on the hand chain hoist, the lower surfaces of the inner walls of the two protective covers 4 are fitted together and moved toward the middle so that the first clamping block 41 on one of the protective covers 4 is inserted into the corresponding first clamping groove 42 on the other protective cover 4. At the same time, the middle position of the two protective covers 4 is fitted with the hook on the hand chain hoist, so as to fix the protective cover 4 on the hook.

[0024] 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. A novel dust-proof device for a hand chain hoist, comprising a hoist cover (1), characterized in that: Both sides of the gourd cover (1) are provided with hand zipper openings (10); two symmetrically distributed fixing plates (2) are fixedly installed on one side of the gourd cover (1); a placement frame (21) is fixedly installed between the two fixing plates (2); a placement groove (22) is provided at the top of the placement frame (21); a connecting plate (23) is provided on the inner wall of the placement groove (22); a sponge (24) is fixedly installed on one side of the connecting plate (23) close to the gourd cover (1); and the placement frame (21) is close to the sponge (24). A hollow groove (25) is provided on one side of the placement frame (21); a movable plate (3) is slidably mounted inside the placement frame (21) on one side of the connecting plate (23); the width of the placement groove (22) is the sum of the widths of the movable plate (3), the connecting plate (23) and the sponge (24); a threaded rod (31) is fixedly mounted on the side of the movable plate (3) away from the connecting plate (23); the threaded rod (31) is threadedly connected to the placement frame (21); and a rotating wheel (32) is fixedly mounted on the side of the threaded rod (31) away from the movable plate (3).

2. A novel dust-proof device for hand chain hoist as claimed in claim 1, characterized in that: The top of the gourd cover (1) is provided with two symmetrically distributed protective covers (4), the inner side of one of the protective covers (4) is fixedly mounted with two symmetrically distributed first clamping blocks (41), and one side of the other protective cover (4) is provided with a first clamping slot (42) used in conjunction with the first clamping block (41).

3. A novel dust prevention device for hand chain hoist as claimed in claim 2, characterized in that: Two symmetrically distributed fixing blocks (43) are fixedly mounted on the top of one of the protective covers (4), a circular groove (44) is provided inside the fixing block (43), a spring (45) is fixedly mounted on the lower surface of the inner wall of the circular groove (44), a clamping column (46) is fixedly mounted on the bottom end of the spring (45), a fixing groove (47) for use with the clamping column (46) is penetrated through the middle of each of the first clamping blocks (41), a guide rod (48) is fixedly mounted on the top of the clamping column (46), the guide rod (48) is located inside the spring (45), the guide rod (48) is slidably clamped in the fixing block (43), and a handle (49) is rotatably sleeved on the top end of the guide rod (48).

4. A novel dust-proof device for hand chain hoist as claimed in claim 1, characterized in that: A pull ring (5) is fixedly mounted on the top end of the connecting plate (23).

5. A novel dust-proof device for hand chain hoist as claimed in claim 1, characterized in that: A baffle (6) is provided at the top of the placement frame (21), two symmetrically distributed second clamping blocks (61) are fixedly mounted at the bottom of the baffle (6), and a second clamping slot (62) for use with the second clamping block (61) is provided on the upper surface of the placement frame (21).

6. A novel dust prevention device for hand chain hoist as claimed in claim 5, characterized in that: A plurality of evenly distributed anti-slip strips (63) are fixedly mounted on the top of the baffle (6).

7. A novel dust prevention device for hand chain hoist as claimed in claim 3, characterized in that: The handle (49) is made of plastic.

8. A novel dust prevention device for hand chain hoist as claimed in claim 3, characterized in that: The diameter of each circular groove (44) is consistent with the diameter of the clamping column (46), and the diameter of the spring (45) is smaller than the diameters of the circular groove (44) and the clamping column (46).

Images