CN213017378U

CN213017378U - Safety lock mechanism to rack

Info

Publication number: CN213017378U
Application number: CN202020911294.4U
Authority: CN
Inventors: 周楠; 朱海彬; 张大静; 厚雪; 吴波
Original assignee: Suzhou Lilang Ruixi Intelligent Technology Co ltd
Current assignee: Suzhou Lilang Ruixi Intelligent Technology Co ltd
Priority date: 2020-05-26
Filing date: 2020-05-26
Publication date: 2021-04-20
Anticipated expiration: 2030-05-26

Abstract

The utility model discloses a safety lock mechanism to rack, including telescopic cylinder, including cylinder, translation pole, possess the cavity that communicates the atmospheric pressure source in the cylinder, translation pole self one end possesses the piston of contacting with the cavity inner wall, the other end of translation pole possesses the sawtooth surface that coincide with the rack, vertical arrangement has a plurality of beads on the sawtooth surface, each bead extends along the horizontal direction, each bead possesses horizontal top surface, oblique bottom surface from last to down in proper order, the atmospheric pressure source drives the translation pole along self axial reciprocating motion; the piston is in contact with the pressure spring on one side departing from the sawtooth surface, and the pressure spring applies elasticity to the translation rod towards the direction of the rack; the cross section of the part of the translation rod between the piston and the sawtooth surface is circular, the outer circumferential surface of the translation rod is sleeved with the reinforcing ring, and the outer circumferential surface of the reinforcing ring is fixed with the cylinder barrel. Adopt this utility model to prevent weighing down of big mass part to increase one insurance, whole mechanism is reliable, and structural strength is big.

Description

Safety lock mechanism to rack

Technical Field

The utility model relates to a pneumatic piece field, concretely relates to safety lock mechanism to rack.

Background

Big quality's equipment also generally needs extreme position when vertical motion in the workshop, and its vertical line fixed motion has rack and pinion drive sometimes, and the gear is fit for dynamic drive, but lets the gear contact for a long time with the rack and come to regard as extreme position's spacing, and the security is not high, still can greatly reduced gear life-span. Therefore, a special limiting mechanism matched with the rack is needed.

SUMMERY OF THE UTILITY MODEL

The to-be-solved problem of the utility model is to provide a safety lock mechanism to rack, for preventing weighing down of big quality part has increased one insurance, whole mechanism is reliable, and structural strength is big.

In order to solve the above problem, the utility model provides a safety lock mechanism to rack, for reaching the above-mentioned purpose, the utility model provides a technical scheme that its technical problem adopted is:

a safety lock mechanism for a rack, comprising: the telescopic cylinder comprises a cylinder barrel and a translation rod, a cavity communicated with an air pressure source is arranged in the cylinder barrel, one end of the translation rod is provided with a piston contacted with the inner wall of the cavity, the other end of the translation rod is provided with a serrated surface matched with the rack, a plurality of convex edges are vertically arranged on the serrated surface, each convex edge extends along the horizontal direction, each convex edge sequentially comprises a horizontal top surface and an inclined bottom surface from top to bottom, and the air pressure source drives the translation rod to reciprocate along the axial direction of the translation rod; the piston is in contact with the pressure spring on one side departing from the sawtooth surface, and the pressure spring applies elasticity to the translation rod towards the direction of the rack; the cross section of the part of the translation rod between the piston and the sawtooth surface is circular, the outer circumferential surface of the translation rod is sleeved with the reinforcing ring, and the outer circumferential surface of the reinforcing ring is fixed with the cylinder barrel.

The beneficial effect of adopting above-mentioned technical scheme is: the translation rod is equivalent to an output rod of a telescopic cylinder, and the forward extension can be in contact with a rack on the large-mass part, so that the large-mass part is fixed at the limit position. The sawtooth surface is vertical to be provided with a plurality of convex edges, so the contact area with the rack is large, the pressure on each convex edge is small, the service life is long, and the structural strength is large. When the translation rod retracts, the large-mass component is loosened, and the horizontal top surface on the rib plays a direct supporting role. The extension and retraction of the translation rod at ordinary times are realized by the power of an air pressure source, the pressure spring is overcome in the process, once the air pressure source fails, air pressure conveying is not carried out, in order to prevent the falling of the large-mass component, the pressure spring plays a role of two insurance at the moment, the pressure spring can utilize self elasticity to extend the translation rod forwards, the contact of the sawtooth surface and the rack is ensured, the large-mass component is blocked, and the falling accident is avoided. Because the translation pole receives very big perpendicular to self axial power when contacting with the rack, so the reinforcing ring plays the effect of local reinforcement to the translation pole, also makes things convenient for the replacement here, prevents the not hard up deformation of here under the permanent use.

As a further improvement, the maximum driving force applied to the translation rod by the air pressure source is greater than the maximum elastic force applied to the translation rod by the pressure spring.

The beneficial effect of adopting above-mentioned technical scheme is: the pressure source can overcome the elasticity of the pressure spring when acting at ordinary times, and the pressure spring does not interfere with the telescopic motion of the translation rod when the gas circuit is not disconnected.

As a further improvement, one end of the cylinder barrel can be disassembled to be assembled with the cylinder cover, and one side of the cylinder cover is contacted with the opening of the cavity.

The beneficial effect of adopting above-mentioned technical scheme is: the cylinder cover and the cylinder barrel are assembled, a cavity which is sealed by relative ratio is provided, and the cylinder cover is opened to facilitate the disassembly and assembly of the translation rod.

As the utility model discloses a further improvement again, possess the sensor on the cylinder cap, in the sensor passed the cylinder cap and stretched into the cavity, the orientation and the translation pole self axial direction parallel of sensor.

The beneficial effect of adopting above-mentioned technical scheme is: the sensor can sense the position state of the translation rod.

As the utility model discloses a further improvement again, the piston is the radially enlarged position of translation pole one end, and it has two sealing washers still to contact jointly between piston and the cavity inner wall.

The beneficial effect of adopting above-mentioned technical scheme is: the expanded piston is convenient for the air pressure source to do work, and the sealing ring can achieve enough air tightness.

As the utility model discloses a further improvement again, the one side that has the translation pole to stretch out on the cylinder still possesses the elastic ring between reinforcing ring and the preceding terminal surface for preceding terminal surface, elastic ring also with the outer periphery contact of translation pole, elastic ring is the rubber material.

The beneficial effect of adopting above-mentioned technical scheme is: the elastic ring of rubber plays the effect of elastic buffer to the stiffener, also can play sealed effect, improves the gas tightness.

As a further improvement of the utility model, the number of the convex edges on the sawtooth surface is not less than three.

The beneficial effect of adopting above-mentioned technical scheme is: the number of the convex edges is enough, so that the sawtooth surface and the rack can have enough contact surfaces to share the pressure of each horizontal top surface.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a perspective view of the safety lock mechanism of the present invention.

Fig. 2 is a perspective view of the sensor of the present invention.

Fig. 3 is a perspective view of the piston and the translation rod of the present invention.

Fig. 4 is a cross-sectional view of an embodiment of the present invention.

1-a cylinder barrel; 2-a translation bar; 3-a sawtooth surface; 4-a sensor; 5-a pressure spring; 6-sealing ring; 7-a cavity; 8-a piston; 9-cylinder cover; 10-a reinforcing ring; 11-elastic ring.

Detailed Description

The following detailed description is made in conjunction with specific embodiments of the present invention:

in order to achieve the purpose of the utility model, a safety lock mechanism to rack, include: the telescopic cylinder comprises a cylinder barrel 1 and a translation rod 2, a cavity 7 communicated with an air pressure source is arranged in the cylinder barrel 1, one end of the translation rod 2 is provided with a piston 8 contacted with the inner wall of the cavity 7, the other end of the translation rod 2 is provided with a serrated surface 3 matched with a rack, a plurality of convex edges are vertically arranged on the serrated surface 3, each convex edge extends along the horizontal direction, each convex edge sequentially comprises a horizontal top surface and an inclined bottom surface from top to bottom, and the air pressure source drives the translation rod 2 to reciprocate along the axial direction of the convex edge; the piston 8 is in contact with the compression spring 5 on one side departing from the sawtooth surface 3, and the compression spring 5 applies elasticity to the translation rod 2 in the direction towards the rack; the cross section of the part of the translation rod 2 between the piston 8 and the sawtooth surface 3 is circular, the reinforcing ring 10 is sleeved on the outer circumferential surface of the translation rod 2, and the outer circumferential surface of the reinforcing ring 10 is fixed with the cylinder barrel 1.

In other embodiments of the present invention, the maximum driving force applied to the translation rod 2 by the air pressure source is greater than the maximum elastic force applied to the translation rod 2 by the compressed spring 5.

In other embodiments of the present invention, the cylinder barrel 1 can be disassembled to have the cylinder cover 9, and one side of the cylinder cover 9 contacts with the opening of the cavity 7.

In other embodiments of the utility model, possess sensor 4 on the cylinder cap 9, sensor 4 passes cylinder cap 9 and stretches into cavity 7 in, sensor 4's orientation and translation pole 2 self axial direction parallel.

In other embodiments of the present invention, the piston 8 is a radially expanded portion of one end of the translation rod 2, and two sealing rings 6 are commonly contacted between the piston 8 and the inner wall of the cavity 7.

The utility model discloses an in other embodiments, the one side that has translation pole 2 to stretch out on cylinder 1 is preceding terminal surface, still possesses elastic ring 11 between reinforcement ring 10 and the preceding terminal surface, elastic ring 11 also with the outer periphery contact of translation pole 2, elastic ring 11 is the rubber material.

In other embodiments of the present invention, the number of the protruding ridges on the sawtooth surface 3 is not less than three.

For convenience of representing the internal structure, the cylinder barrel 1, the cylinder cover 9 and the translation rod 2 are hidden in fig. 2, and the cylinder barrel 1 and the cylinder cover 9 are hidden in fig. 3.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and the protection scope of the present invention can not be limited thereby, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. A security lock mechanism for a rack, comprising:

the telescopic cylinder comprises a cylinder barrel and a translation rod, a cavity communicated with an air pressure source is arranged in the cylinder barrel, a piston contacted with the inner wall of the cavity is arranged at one end of the translation rod, a serrated surface matched with the rack is arranged at the other end of the translation rod, a plurality of convex edges are vertically arranged on the serrated surface, each convex edge extends along the horizontal direction, each convex edge sequentially comprises a horizontal top surface and an inclined bottom surface from top to bottom, and the air pressure source drives the translation rod to reciprocate along the axial direction of the translation rod;

the piston is in contact with the pressure spring on one side, which is far away from the sawtooth surface, and the pressure spring applies elasticity to the translation rod towards the direction of the rack;

the cross section of the part of the translation rod between the piston and the sawtooth surface is circular, the outer circumferential surface of the translation rod is sleeved with the reinforcing ring, and the outer circumferential surface of the reinforcing ring is fixed with the cylinder barrel.

2. The security lock mechanism for a rack of claim 1, wherein: the maximum driving force applied to the translation rod by the air pressure source is greater than the maximum elastic force applied to the translation rod by the compression spring.

3. The security lock mechanism for a rack of claim 1, wherein: one end of the cylinder barrel can be detached to be provided with a cylinder cover, and one surface of the cylinder cover is in contact with the opening of the cavity.

4. A security lock mechanism for a rack as defined in claim 3 wherein: the cylinder cover is provided with a sensor, the sensor penetrates through the cylinder cover and extends into the cavity, and the orientation of the sensor is parallel to the axial direction of the translation rod.

5. The security lock mechanism for a rack of claim 1, wherein: the piston is a part with one end of the translation rod expanded in the radial direction, and two sealing rings are in common contact between the piston and the inner wall of the cavity.

6. The security lock mechanism for a rack of claim 1, wherein: the cylinder barrel is provided with a translation rod, the surface of the cylinder barrel, which extends out of the translation rod, is a front end surface, an elastic ring is further arranged between the reinforcing ring and the front end surface, the elastic ring is also contacted with the outer circumferential surface of the translation rod, and the elastic ring is made of rubber.

7. The security lock mechanism for a rack of claim 1, wherein: the number of the convex edges on the sawtooth surface is not less than three.