CN215496481U

CN215496481U - Scram switch with integrated shaft core

Info

Publication number: CN215496481U
Application number: CN202121911543.0U
Authority: CN
Inventors: 张教华; 何新华; 古思伟; 杨志平; 刘伟达; 梁俊浩
Original assignee: Guangdong Jinyan Precision Technology Co ltd
Current assignee: Guangdong Jinyan Electric Technology Co ltd
Priority date: 2021-08-16
Filing date: 2021-08-16
Publication date: 2022-01-11
Anticipated expiration: 2031-08-16

Abstract

The utility model provides an emergency stop switch with an integrated shaft core, which comprises a shell, a button, the shaft core, an elastic sheet, a static contact sheet, a movable contact sheet and a spring, wherein a button installation cavity, an elastic sheet installation cavity and a movable contact sheet installation cavity are sequentially arranged in the shell from top to bottom; the static contact pieces are respectively arranged on two sides of the top wall of the movable contact piece mounting cavity, the movable contact pieces are sleeved outside the shaft core and abut against the second-step surface, the spring is connected with the bottom surface of the movable contact piece and the bottom wall of the movable contact piece mounting cavity, when the spring stretches, the movable contact pieces are connected with the two static contact pieces, and the button is arranged in the button mounting cavity and is sleeved with the top of the shaft core. The emergency stop switch with the integrated shaft core is simple, convenient and quick to assemble, not easy to loosen in the using process and low in failure rate.

Description

Scram switch with integrated shaft core

Technical Field

The utility model relates to the field of mechanical switches, in particular to an emergency stop switch with an integrated shaft core.

Background

In various factories, some large and medium-sized machine equipment or electric appliances can see a striking red button, and standard red characters marked with the same meaning as 'emergency stop' are required. Such buttons may be collectively referred to as scram buttons. This button need only be pressed directly down. The whole device can be quickly stopped or some transmission parts can be released. To start the device again the button must be released, i.e. released after a clockwise rotation of about 45 °, the pressed part springs up. I.e. "released".

The scram switch shaft core is an accessory for a scram switch assembly, and the scram switch shaft core originally mainly comprises a shaft core, a lower screw rod, an upper nut, a rubber pad and the like, and has the following defects: 1. the number of connecting pieces of the emergency stop switch shaft core assembly is large, and the assembly is time-consuming; 2. the screw rod of the scram switch shaft core assembly is easy to loosen.

SUMMERY OF THE UTILITY MODEL

In order to make up for the defects in the prior art, the utility model provides the emergency stop switch with the integrated shaft core, which is simple, convenient and quick to assemble, not easy to loosen in the using process and low in failure rate.

In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:

an emergency stop switch with an integrated shaft core comprises a shell, a button, the shaft core, an elastic sheet, a static contact sheet, a movable contact sheet and a spring, wherein a button installation cavity, an elastic sheet installation cavity and a movable contact sheet installation cavity are sequentially arranged in the shell from top to bottom; the movable contact piece is connected with the two static contact pieces when the spring is stretched, and the button is arranged in the button mounting cavity and is in sleeve joint with the top of the shaft core.

Furthermore, a first groove is arranged below the elastic sheet on the shaft core, and a first clamp spring is clamped in the first groove.

Furthermore, a second groove is formed in the shaft core and located below the movable contact spring, and a second clamp spring is clamped in the second groove.

Furthermore, the elastic sheet is arc-shaped, two side walls in the horizontal direction of the elastic sheet installation cavity are provided with elastic sheet grooves, and two ends of the elastic sheet are inserted into the elastic sheet grooves.

Furthermore, the static contact is L-shaped, and one end of the static contact extends out of the shell and is connected with the shell through a bolt.

Further, button installation intracavity wall is equipped with the reference column, the button outer wall is equipped with M type constant head tank, reference column sliding connection be in the constant head tank.

Compared with the prior art, the utility model has the following beneficial technical effects:

the emergency stop switch with the integrated shaft core is assembled by using the integrally injection-molded shaft core, so that the emergency stop switch is low in production cost, convenient and quick to assemble, and not easy to loosen after being assembled, the failure rate of a product is low, and the hidden danger of the product is reduced.

Drawings

FIG. 1 is an exploded view of a scram switch of the present invention having an integral spindle.

FIG. 2 is a cross-sectional view of a scram switch of the present invention having an integrated hub.

Fig. 3 is a diagram of the construction of the spindle of an emergency stop switch with an integrated spindle according to the present invention.

Wherein: 1. a housing; 101. a button installation cavity; 1011. a positioning column; 102. the elastic piece mounting cavity; 1021. a spring sheet groove; 103. a movable contact spring mounting cavity; 2. a button; 201. positioning a groove; 3. a shaft core; 301. a first step surface; 302. a first groove; 303. a second step surface; 304. a second groove; 4. a spring plate; 5. a static contact piece; 6. a movable contact spring; 7. a spring; 8. a first clamp spring; 9. and a second clamp spring.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

Example 1

As shown in fig. 1-3, the emergency stop switch with an integrated shaft core comprises a shell 1, a button 2, a shaft core 3, an elastic sheet 4, a static contact sheet 5, a movable contact sheet 6 and a spring 7. The shell 1 is internally provided with a button installation cavity 101, an elastic sheet installation cavity 102 and a movable contact piece installation cavity 103 from top to bottom in sequence, and the shaft core 3 vertically penetrates through the button installation cavity 101, the elastic sheet installation cavity 102 and the movable contact piece installation cavity 103.

The shaft core 3 is integrally formed by injection molding of a nylon material, and the outer wall of the shaft core is provided with a first step surface 301 and a first groove 302 which are positioned in the spring piece mounting cavity 102, and a second step surface 303 and a second groove 304 which are positioned in the movable contact piece mounting cavity 103. The elastic sheet 4 is sleeved on the shaft core 3 between the first step surface 301 and the first groove 302, and the first clamp spring 8 is clamped on the first groove 302 to fix the elastic sheet 4. Furthermore, the elastic sheet 4 is arc-shaped, two side walls of the horizontal direction of the elastic sheet installation cavity 102 are provided with elastic sheet grooves 1021, and two ends of the elastic sheet 4 are inserted into the elastic sheet grooves 1021.

The static contact pieces 5 are L-shaped, the left side and the right side of the shell 1 are respectively inserted with one static contact piece 5 to the movable contact piece mounting cavity 103, the end parts of the two static contact pieces 5 are not connected, and the outer ends of the two static contact pieces are connected with the shell 1 through bolts. The movable contact piece 6 is sleeved on the shaft core 3 between the second step surface 303 and the second groove 304, and the second clamp spring 9 is clamped on the second groove 304 to fix the movable contact piece 6. The spring 7 is connected with the bottom surface of the movable contact piece 6 and the bottom wall of the movable contact piece mounting cavity 103, and when the spring 7 is stretched, the movable contact piece 6 is connected with the two static contact pieces 5.

The button 2 is arranged in the button installation cavity 101 and is sleeved with the top of the shaft core 3. Button installation cavity 101 inner wall is equipped with reference column 1011, and 2 outer walls of button are equipped with M type constant head tank 201, and reference column 1011 sliding connection is in constant head tank 201.

The emergency stop switch with the integrated shaft core of the embodiment has the following working principle:

in an initial state, the elastic sheet 4 is bent upwards, the spring 7 is stretched, and the movable contact 6 is connected with the two static contacts 5, so that a power supply is switched on; when the power supply needs to be cut off, the button 2 is pressed downwards, the shaft core 3 moves downwards, the elastic sheet 4 is pushed to bend downwards, the spring 7 contracts downwards, the movable contact piece 6 is separated from the static contact piece 5, the power supply is cut off, the button 2 is rotated again, the positioning column 1011 enters the horizontal section of the positioning groove 201, and the button 2 is locked; the reverse operation is only required when the power supply needs to be turned on again.

Although the present invention has been described in detail with reference to the embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a scram switch with integration axle core which characterized in that: the novel electric spindle comprises a shell, a button, a spindle core, an elastic sheet, a static contact sheet, a movable contact sheet and a spring, wherein a button installation cavity, an elastic sheet installation cavity and a movable contact sheet installation cavity are sequentially arranged in the shell from top to bottom; the movable contact piece is connected with the two static contact pieces when the spring is stretched, and the button is arranged in the button mounting cavity and is in sleeve joint with the top of the shaft core.

2. The scram switch with integrated spindle of claim 1, wherein: the shaft core is located below the elastic sheet, a first groove is formed in the lower portion of the shaft core, and a first clamp spring is connected to the first groove in a clamped mode.

3. The scram switch with integrated spindle of claim 2, wherein: and a second groove is arranged below the movable contact piece on the shaft core, and a second clamp spring is clamped in the second groove.

4. The scram switch with integrated spindle of claim 3, wherein: the elastic sheet is arc-shaped, two side walls in the horizontal direction of the elastic sheet installation cavity are provided with elastic sheet grooves, and two ends of the elastic sheet are inserted into the elastic sheet grooves.

5. The scram switch with integrated spindle of claim 4, wherein: the static contact is L-shaped, and one end of the static contact extends out of the shell and is connected with the shell through a bolt.

6. The scram switch with integrated spindle of claim 5, wherein: the button installation intracavity wall is equipped with the reference column, the button outer wall is equipped with M type constant head tank, reference column sliding connection be in the constant head tank.