CN210531539U

CN210531539U - Noise reduction ratchet

Info

Publication number: CN210531539U
Application number: CN201921556791.0U
Authority: CN
Inventors: 李广文
Original assignee: Shenyang Zhichuang Technology Co ltd
Current assignee: Shenyang Zhichuang Technology Co ltd
Priority date: 2019-09-19
Filing date: 2019-09-19
Publication date: 2020-05-15
Anticipated expiration: 2029-09-19

Abstract

The utility model discloses a: the utility model provides a noise reduction ratchet, includes the gear body, the inboard of gear body is equipped with interior ratchet, be equipped with annular slide on the gear body, the last symmetrical sliding connection of annular slide has the slider, be equipped with the connecting rod between the slider, the centre of connecting rod is equipped with the positioning seat, be equipped with the center pin on the positioning seat, be equipped with elasticity resetting means on the positioning seat, elasticity resetting means's end is equipped with the pawl, and the position of pawl corresponds on interior ratchet, through elasticity resetting means direct control pawl, can effectively control pawl operation orbit, thereby prevent the collision noise reduction of pawl and ratchet, simultaneously with the ratchet design in the inside of ratchet, the outside of ratchet can be other linkages of time.

Description

Noise reduction ratchet

Technical Field

The utility model discloses be applied to industrial field, specifically be a noise reduction ratchet.

Background

Ratchet, defined as a gear with a rigid toothed or friction surface on its outer or inner edge, is an important component that constitutes a ratchet mechanism. The pawl is pushed to move in a stepping mode, the parts similar to gears and matched with the dials to control the change of the dials are used, when the rocker of the driving part swings anticlockwise, the driving pawl is inserted into a tooth groove of the ratchet wheel to push the ratchet wheel to rotate by an angle, and at the moment, the stop pawl slides on a tooth back of the ratchet wheel. When the rocker of the driving part swings clockwise, the stop pawl prevents the ratchet wheel from rotating clockwise, and the driving pawl can slide on the back of the ratchet wheel teeth, so that the ratchet wheel is static. Thus, when the rocker swings back and forth continuously, the ratchet wheel moves intermittently in one direction. The reciprocating swing of the driving part can be obtained by a swing follower cam mechanism, a crank rocker mechanism or a hydraulic transmission and electromagnetic device, and the like, and when the traditional ratchet rotates every time due to the spring, the positioning pawl can impact the ratchet for many times to generate part of noise.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a noise reduction ratchet to solve the problem of proposing among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a noise reduction ratchet wheel comprises a gear body, wherein inner ratchets are arranged on the inner side of the gear body, an annular slide way is arranged on the gear body, slide blocks are symmetrically and slidably connected onto the annular slide way, a connecting rod is arranged between the slide blocks, a positioning seat is arranged in the middle of the connecting rod, a central shaft is arranged on the positioning seat, an elastic resetting device is arranged on the positioning seat, a stop pawl is arranged at the tail end of the elastic resetting device, and the position of the stop pawl corresponds to the inner ratchets.

Preferably, the periphery of the gear body is provided with an outer ratchet, and the sliding block is provided with an outer stop pawl corresponding to the outer ratchet.

Preferably, the number of the sliding blocks and the connecting rods is more than or equal to 2, and the sliding blocks and the connecting rods are uniformly distributed on the slide way.

Preferably, the external ratchet teeth can be replaced with grooves.

Preferably, the elastic force returning means can be a damper and a spring.

Compared with the prior art, the beneficial effects of the utility model are that: the elastic reset device directly controls the stop pawl, the running track of the stop pawl can be effectively controlled, the collision between the stop pawl and the ratchet wheel is prevented, and therefore noise is reduced.

Drawings

Fig. 1 is a design structure diagram of the present invention.

Wherein: 1 sliding block, 2 external ratchets, 3 connecting rods, 4 annular slideways, 5 positioning seats, 6 central shafts, 7 elastic reset devices, 8 stop pawls, 9 internal ratchets, 10 gear bodies and 11 external stop pawls.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. 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 therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

Referring to fig. 1, the present invention provides a technical solution: the utility model provides a noise reduction ratchet, includes gear body 10, gear body 10's inboard is equipped with interior ratchet 9, be equipped with annular slide 4 on the gear body 10, the symmetry sliding connection has slider 1 on the annular slide 4, be equipped with connecting rod 3 between slider 1, the centre of connecting rod 3 is equipped with positioning seat 5, be equipped with center pin 6 on the positioning seat 5, be equipped with elasticity resetting means 7 on the positioning seat 5, the end of elasticity resetting means 7 is equipped with pawl 8, and the position of pawl 8 corresponds on interior ratchet 9.

Specifically, the outer ratchet 2 is arranged on the periphery of the gear body 10, and the outer stop pawl 11 corresponding to the outer ratchet 2 is arranged on the slide block 1.

A set of ratchet system can be continuously arranged outside, and the stopping effect is increased.

Specifically, the number of the sliding blocks 1 and the connecting rods 3 is greater than or equal to 2, and the sliding blocks and the connecting rods are uniformly distributed on the slide ways 4.

The stability of 1 slider operation is improved, the firm degree of whole equipment is improved, increase carrying capacity.

In particular, the outer ratchet 2 can be replaced by a groove.

The outer portion of the ratchet wheel may simultaneously perform other linkages while the ratchet wheel is operating.

In particular, the elastic return means 7 can be a damper and a spring.

The universality is improved, and different parts can be adopted according to different production environments and different operation environments.

The working principle is as follows: when the gear body 10 rotates, the positioning seat 5 and the connecting rod 3 provide fulcrums, the supporting sliding block 1 enables the gear body 10 to rotate according to the track of the annular slide way 4, the elastic resetting device 7 on the positioning seat 5 can stop the movement of the stopping pawl 8 by providing resetting capability, the stopping pawl 8 is directly controlled through the elastic resetting device 7, the moving track of the stopping pawl 8 can be effectively controlled, the stopping pawl 8 is prevented from colliding with the ratchet wheel, noise is reduced, meanwhile, the ratchet is designed in the ratchet wheel, the ratchet wheel can simultaneously move outside the ratchet wheel, and other linkage parts are connected.

In the description of the present specification, the terms "connect", "mount", "fix", and the like are to be understood in a broad sense, for example, "connect" may be a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A noise reduction ratchet comprises a gear body (10), and is characterized in that; the ratchet wheel is characterized in that inner ratchets (9) are arranged on the inner side of the gear body (10), annular slide ways (4) are arranged on the gear body (10), sliders (1) are symmetrically and slidably connected to the annular slide ways (4), connecting rods (3) are arranged between the sliders (1), positioning seats (5) are arranged in the middles of the connecting rods (3), central shafts (6) are arranged on the positioning seats (5), elastic resetting devices (7) are arranged on the positioning seats (5), locking pawls (8) are arranged at the tail ends of the elastic resetting devices (7), and the positions of the locking pawls (8) correspond to the inner ratchets (9).

2. A noise reducing ratchet as claimed in claim 1, wherein; an outer ratchet (2) is arranged on the periphery of the gear body (10), and an outer stop pawl (11) corresponding to the outer ratchet (2) is arranged on the sliding block (1).

3. A noise reducing ratchet as claimed in claim 1, wherein; the number of the sliding blocks (1) and the connecting rods (3) is more than or equal to 2, and the sliding blocks and the connecting rods are uniformly distributed on the slide ways (4).

4. A noise reducing ratchet as claimed in claim 2; the external ratchet (2) can be replaced by a groove.

5. A noise reducing ratchet as claimed in claim 2; the elastic force resetting device (7) can be a damping and a spring.