CN215334078U

CN215334078U - Plastic pawl arm convenient to replace

Info

Publication number: CN215334078U
Application number: CN202121034743.2U
Authority: CN
Inventors: 邵永立; 徐雅洪; 陈云
Original assignee: Zhejiang Ningbo Ling'an Electromechanical Co ltd
Current assignee: Zhejiang Ningbo Ling'an Electromechanical Co ltd
Priority date: 2021-05-14
Filing date: 2021-05-14
Publication date: 2021-12-28
Anticipated expiration: 2031-05-14

Abstract

The utility model provides a plastic pawl arm convenient to replace, and relates to the technical field of plastic pawl arms. According to the utility model, by arranging the connecting device, the plastic pawl arm is effectively installed and fixed, so that the condition that the traditional equipment is easy to fall off due to the fact that the traditional equipment is connected in an inserting and buckling mode is avoided, the falling rate of the equipment is reduced, and the stability of the equipment is improved.

Description

Plastic pawl arm convenient to replace

Technical Field

The utility model relates to the technical field of plastic pawl arms, in particular to a plastic pawl arm convenient to replace.

Background

The pawl is a part for shifting the ratchet wheel to do intermittent motion. The pawl is driven by the connecting rod to do reciprocating motion, so that the ratchet wheel is driven to do unidirectional motion. The structural part is used for clamping the ratchet wheel, so that the ratchet wheel can move in a single direction and can be locked reversely.

At present, when the existing plastic pawl arm is driven to be connected and fixed, the plastic pawl arm is connected by utilizing the insertion mode and the buckling mode, so that the falling condition is easily caused during use, the normal use of equipment is not facilitated, and the improvement is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defect that equipment in the prior art is easy to fall off, and provides a plastic ratchet arm convenient to replace.

In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides a plastics pawl arm convenient to change, includes ratchet piece, connecting rod and connecting device, the connecting rod is located one side setting of ratchet piece, the surface of ratchet piece is provided with connecting device, connecting device includes solid fixed ring, gu the fixed surface of fixed ring and connecting rod is connected, one side fixedly connected with holding ring that the ratchet piece is close to the connecting rod, gu the inner wall sliding connection of fixed ring and holding ring, the fixed surface of ratchet piece is connected with the dead lever that two symmetries set up, the sliding surface of dead lever is connected with the snap ring, the inner wall sliding connection of snap ring and solid fixed ring.

Preferably, one side of the positioning ring, which is close to the ratchet block, is fixedly connected with two symmetrically arranged slide bars, the surfaces of the slide bars are slidably connected with limit rings, and the limit rings are slidably connected with the inner walls of the clamping rings.

Preferably, one side of the positioning ring close to the limiting ring is fixedly connected with two compression springs which are symmetrically arranged, and one side of the limiting ring close to the positioning ring is fixedly connected with the compression springs.

Preferably, one side of the fixed rod, which is close to the snap ring, is fixedly connected with an expansion spring, and one side of the snap ring, which is close to the fixed rod, is fixedly connected with the expansion spring.

Preferably, the surface of sour jujube piece is provided with protector, protector includes the protection pad, the protection pad is established with the surperficial card of sour jujube piece and is connected, the equal fixedly connected with fixed block in both sides of protection pad, one side fixedly connected with locating lever that the sour jujube piece is close to the fixed block, the surperficial sliding connection of locating lever has the carriage release lever, the inner wall sliding connection of carriage release lever and fixed block, the inner wall sliding connection of fixed block has the gag lever post, the inner wall sliding connection of gag lever post and carriage release lever post, the one end of gag lever post is rotated and is connected with the turning block, the inner wall sliding connection of turning block and fixed block.

Preferably, one side of the positioning rod, which is close to the moving rod, is fixedly connected with a pulling spring, and one side of the moving rod, which is close to the positioning rod, is fixedly connected with the pulling spring.

Preferably, one side of the limiting rod close to the inner wall of the fixing block is fixedly connected with a limiting spring, and one side of the fixing block close to the limiting rod is fixedly connected with the limiting spring.

Compared with the prior art, the utility model has the advantages and positive effects that,

1. in the utility model, by arranging the connecting device, when the connection is needed, the fixing ring is inserted into the positioning ring, the limiting ring is pulled to one side close to the positioning ring, the compression spring is stressed and deformed to generate elastic force, the snap ring is pushed to one side close to the fixing rod, the expansion spring is stressed and deformed to generate elastic force, the snap ring is inserted into the fixing ring, the limiting ring is loosened, the compression spring releases the elastic force, the limiting ring is inserted into the snap ring, the connection of the fixing ring can be completed, when the fixing device needs to be opened, the limiting ring is pulled to one side close to the positioning ring, the compression spring is stressed and deformed to generate elastic force, the limiting ring loses the constraint on the snap ring, the expansion spring releases the elastic force, the snap ring is pulled to one side, the snap ring loses the constraint on the fixing ring, the opening of the fixing ring can be completed, the plastic pawl arm is effectively installed and fixed by arranging the connecting device, and the connection of the traditional device in an inserting and buckling mode is avoided, the falling-off condition is easily caused, the falling-off rate of the equipment is reduced, and the stability of the equipment is improved.

2. In the utility model, through arranging the protective device, when the protective device is required to be installed, the protective pad is placed in the ratchet block, the protective pad drives the fixed block to move together, the movable rod is pulled to one side close to the fixed block, the spring is pulled to generate elastic force by being stressed and deformed, the movable rod is inserted in the fixed block, the rotating block is rotated to enable the rotating block to lose the constraint on the fixed block, the limiting spring releases the elastic force, the limiting rod is pulled to one side to enable the limiting rod to be inserted in the inner wall of the movable rod and to be abutted against the inner wall of the movable rod, the installation and the protection of the movable rod can be completed, when the movable rod is required to be disassembled, the limiting rod is pulled to one side, the limiting spring is stressed and deformed to generate the elastic force, the rotating block is rotated to enable the limiting rod to lose the constraint on the movable rod, the spring is pulled to release the elastic force, the movable rod is pushed to one side, the disassembly of the movable rod can be completed, and the protective device is arranged to effectively protect the plastic pawl arm of the movable rod, and then avoided plastics pawl arm to carry out the function of band-type brake for a long time, easy wearing and tearing lead to the condition of unable use, and then reduced the spoilage of equipment, improved the life of equipment.

Drawings

FIG. 1 is a schematic perspective view of a plastic pawl arm of the present invention for easy replacement;

FIG. 2 is a schematic view of the structure at A of FIG. 1 in a plastic pawl arm for easy replacement according to the present invention;

FIG. 3 is an exploded view of a plastic pawl arm of the present invention for easy replacement;

FIG. 4 is an exploded view of the connection device in a plastic pawl arm according to the present invention, which is easy to replace;

fig. 5 is an exploded view of the shield in the plastic pawl arm according to the present invention.

Illustration of the drawings: 1. a ratchet block; 2. a connecting rod; 3. a connecting device; 31. a fixing ring; 32. a positioning ring; 33. a slide bar; 34. a snap ring; 35. a limiting ring; 36. fixing the rod; 4. a guard; 41. positioning a rod; 42. a travel bar; 43. a limiting rod; 44. rotating the block; 45. a fixed block; 46. a protective pad.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments of the present disclosure.

Embodiment 1, as shown in fig. 1 to 5, a plastic ratchet arm for easy replacement comprises a ratchet block 1, a connecting rod 2 and a connecting device 3, wherein the connecting rod 2 is disposed at one side of the ratchet block 1, and the connecting device 3 is disposed at the surface of the ratchet block 1.

The specific arrangement and function of the connecting means 3 and the shielding means 4 will be described in detail below.

As shown in fig. 1 and 4, the connecting device 3 includes a fixing ring 31, the fixing ring 31 is fixedly connected to the surface of the connecting rod 2, a positioning ring 32 is fixedly connected to one side of the ratchet block 1 close to the connecting rod 2, the fixing ring 31 is slidably connected to the inner wall of the positioning ring 32, two symmetrically arranged fixing rods 36 are fixedly connected to the surface of the ratchet block 1, a snap ring 34 is slidably connected to the surface of the fixing rod 36, the snap ring 34 is slidably connected to the inner wall of the fixing ring 31, two symmetrically arranged sliding rods 33 are fixedly connected to one side of the positioning ring 32 close to the ratchet block 1, a position-limiting ring 35 is slidably connected to the surface of the sliding rods 33, the position-limiting ring 35 is slidably connected to the inner wall of the snap ring 34, two symmetrically arranged compression springs are fixedly connected to one side of the positioning ring 32 close to the position ring 35, one side of the position-limiting ring 35 close to the positioning ring 32 is fixedly connected to the compression springs, and expansion springs are fixedly connected to one side of the fixing rods 36 close to the snap ring 34, the side of the snap ring 34 near the fixing rod 36 is fixedly connected with the expansion spring, so that the connection is firmer.

The whole connecting device 3 achieves the effect that by arranging the connecting device 3, when the connection is needed, the fixing ring 31 is inserted into the positioning ring 32, the limiting ring 35 is pulled to one side close to the positioning ring 32, the compression spring is stressed and deformed to generate elastic force, the clamping ring 34 is pushed to one side close to the fixing rod 36, the expansion spring is stressed and deformed to generate elastic force, the clamping ring 34 is inserted into the fixing ring 31, the limiting ring 35 is loosened, the compression spring releases the elastic force, the limiting ring 35 is inserted into the clamping ring 34, the connection of the fixing ring is completed, when the connecting device needs to be opened, the limiting ring 35 is pulled to one side close to the positioning ring 32, the compression spring is stressed and deformed to generate elastic force, the limiting ring 35 loses the constraint on the clamping ring 34, the expansion spring releases the elastic force, the clamping ring 34 is pulled to one side, the clamping ring 34 loses the constraint on the fixing ring 31, and the opening of the fixing ring is completed, through setting up connecting device 3, effectual installation is fixed to plastics pawl arm, and then has avoided traditional equipment to adopt to insert the mode of establishing and the buckle to connect, easily leads to the condition that drops, and then has reduced equipment dropout rate, has improved the stability of equipment.

As shown in fig. 1 and 5, the protection device 4 includes a protection pad 46, the protection pad 46 is connected with the surface of the ratchet block 1 in a clamping manner, both sides of the protection pad 46 are fixedly connected with fixed blocks 45, one side of the ratchet block 1 close to the fixed blocks 45 is fixedly connected with a positioning rod 41, the surface of the positioning rod 41 is connected with a movable rod 42 in a sliding manner, the movable rod 42 is connected with the inner wall of the fixed blocks 45 in a sliding manner, the inner wall of the fixed blocks 45 is connected with a limiting rod 43 in a sliding manner, the limiting rod 43 is connected with the inner wall of the movable rod 42 in a sliding manner, one end of the limiting rod 43 is rotatably connected with a rotating block 44, the rotating block 44 is connected with the inner wall of the fixed blocks 45 in a sliding manner, one side of the positioning rod 41 close to the movable rod 42 is fixedly connected with a pulling spring, one side of the movable rod 42 close to the positioning rod 41 is fixedly connected with the pulling spring, one side of the limiting rod 43 close to the inner wall of the fixed blocks 45 is fixedly connected with a limiting spring, one side of the fixed blocks 45 close to the limiting spring is fixedly connected with the limiting spring, it can be safeguarded.

The whole protection device 4 has the effects that by arranging the protection device 4, when the protection device is required to be installed, the protection pad 46 is placed in the ratchet block 1, the protection pad 46 drives the fixed block 45 to move together, the movable rod 42 is pulled to one side close to the fixed block 45, the pulling spring is stressed and deformed to generate elastic force, the movable rod 42 is inserted in the fixed block 45, the rotating block 44 is rotated, the rotating block 44 loses the constraint on the fixed block 45, the limiting spring releases the elastic force, the limiting rod 43 is pulled to one side, the limiting rod 43 is inserted in the inner wall of the movable rod 42 and is abutted against the inner wall of the movable rod 42, the installation and protection can be completed, when the disassembly is required, the limiting rod 43 is pulled to one side, the limiting spring is stressed and deformed to generate the elastic force, the rotating block 44 is rotated, the limiting rod 43 loses the constraint on the movable rod 42, the pulling spring releases the elastic force, the movable rod 42 is pushed to one side, can accomplish to dismantle it, through setting up protector 4, effectually protect its plastics pawl arm, and then avoided plastics pawl arm to embrace when stopping the function for a long time, easy wearing and tearing lead to the condition of unable use, and then reduced the spoilage of equipment, improved the life of equipment.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.

Claims

1. The utility model provides a plastics pawl arm convenient to change, includes ratchet piece (1), connecting rod (2) and connecting device (3), its characterized in that: the utility model discloses a ratchet piece, including connecting rod (2), solid fixed ring (31) and connecting rod (2), the surface of connecting rod (2) is located one side setting of ratchet piece (1), the surface of ratchet piece (1) is provided with connecting device (3), connecting device (3) are including solid fixed ring (31), gu fixed ring (31) are connected with the fixed surface of connecting rod (2), one side fixedly connected with holding ring (32) that ratchet piece (1) is close to connecting rod (2), gu fixed ring (31) and the inner wall sliding connection of holding ring (32), the fixed surface of ratchet piece (1) is connected with dead lever (36) that two symmetries set up, the sliding surface of dead lever (36) is connected with snap ring (34), the inner wall sliding connection of snap ring (34) and solid fixed ring (31).

2. A plastic ratchet arm for easy replacement according to claim 1, wherein: one side of the positioning ring (32) close to the ratchet block (1) is fixedly connected with two symmetrically arranged slide rods (33), the surface of each slide rod (33) is connected with a limiting ring (35) in a sliding mode, and each limiting ring (35) is connected with the inner wall of the corresponding clamping ring (34) in a sliding mode.

3. A plastic ratchet arm for easy replacement according to claim 2, wherein: the locating ring (32) is close to the compression spring that two symmetries of one side fixedly connected with of spacing ring (35) set up, one side and the compression spring fixed connection that spacing ring (35) are close to locating ring (32).

4. A plastic ratchet arm for easy replacement according to claim 1, wherein: one side of the fixing rod (36) close to the clamping ring (34) is fixedly connected with an expansion spring, and one side of the clamping ring (34) close to the fixing rod (36) is fixedly connected with the expansion spring.

5. A plastic ratchet arm for easy replacement according to claim 1, wherein: the surface of the ratchet block (1) is provided with a protective device (4), the protective device (4) comprises a protective pad (46), the protective pad (46) is connected with the surface of the ratchet block (1) in a clamping way, both sides of the protective pad (46) are fixedly connected with fixed blocks (45), one side of the ratchet block (1) close to the fixed block (45) is fixedly connected with a positioning rod (41), the surface of the positioning rod (41) is connected with a movable rod (42) in a sliding way, the movable rod (42) is connected with the inner wall of the fixed block (45) in a sliding way, the inner wall of the fixed block (45) is connected with a limiting rod (43) in a sliding way, the limiting rod (43) is connected with the inner wall of the movable rod (42) in a sliding way, one end of the limiting rod (43) is rotatably connected with a rotating block (44), and the rotating block (44) is connected with the inner wall of the fixing block (45) in a sliding mode.

6. A plastic ratchet arm for easy replacement according to claim 5, wherein: one side of the positioning rod (41) close to the moving rod (42) is fixedly connected with a pulling spring, and one side of the moving rod (42) close to the positioning rod (41) is fixedly connected with the pulling spring.

7. A plastic ratchet arm for easy replacement according to claim 5, wherein: spacing spring of one side fixedly connected with that gag lever post (43) are close to fixed block (45) inner wall, one side and spacing spring fixed connection that gag lever post (43) are close to fixed block (45).