CN213882882U

CN213882882U - Gear rack safety switch structure

Info

Publication number: CN213882882U
Application number: CN202021866087.8U
Authority: CN
Inventors: 王波; 邱耀逵
Original assignee: Fuyoujiyan Shanghai Electronics Co ltd
Current assignee: Fuyoujiyan Shanghai Electronics Co ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2021-08-06
Anticipated expiration: 2030-08-31

Abstract

The utility model discloses a rack and pinion safety switch structure, including the board, set up the upper cover on the board, upper cover department sets up rotatable handle, its characterized in that, handle and upper cover junction set up the handle gear, handle gear and rack toothing, and the rack setting is on the board, and spacing portion and back spacing portion before setting up respectively on the board, and rack rear end and safety switch cooperation. The utility model discloses ensure that the upper cover just can work under complete closure state, if the unexpected upper cover is opened because of the accident, then shut down in order to ensure the safety of peripheral personnel and environment.

Description

Gear rack safety switch structure

Technical Field

The utility model belongs to the technical field of machinery and specifically relates to a rack and pinion safety switch structure is related to.

Background

The high temperature and high pressure are often generated under the working state of a machine table (coffee machine), if the safety protection measures are insufficient, peripheral personnel and the environment are in high danger, so that an opening and closing mechanism is required to be designed, and the equipment cannot work under the opening state of the upper cover so as to ensure the safety.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the above problem, providing a rack and pinion safety switch structure, the unable work of upper cover open state equipment improves the security.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a rack and pinion safety switch structure, includes the board, sets up the upper cover on the board, and upper cover department sets up rotatable handle, its characterized in that, handle and upper cover junction set up the handle gear, handle gear and rack toothing, and the rack setting is on the board, and limit portion and back limit portion before setting up respectively on the board, and rack rear end and safety switch cooperation.

Furthermore, the machine table is provided with a middle limiting part and a bottom limiting part, wherein the rack is provided with a middle limiting hole, the middle limiting hole is matched with the middle limiting part for use, the rack is provided with a bottom limiting port, and the bottom limiting port is matched with the bottom limiting part for use.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses ensure that the upper cover just can work under complete closure state, if the unexpected upper cover is opened because of the accident, then shut down in order to ensure the safety of peripheral personnel and environment.

Drawings

Fig. 1 is a first directional perspective view of a rack and pinion safety switch configuration.

Fig. 2 is a perspective view of a second direction of the rack and pinion safety switch structure.

Fig. 3 is a left side view of the structure of the rack and pinion safety switch.

Fig. 4 is a partial enlarged view of the handle gear.

Fig. 5 is a perspective view of the handle gear in a first orientation.

Fig. 6 is a perspective view of the handle gear in a second orientation.

Fig. 7 is a sectional view taken along line a-a of fig. 3.

Description of reference numerals: the machine table 1, the upper cover 2, the handle 3, the handle gear 41, the rack 42, the front limiting part 43, the rear limiting part 44, the middle limiting part 45, the bottom limiting part 46, the safety switch 5 and the rotating shaft 6.

Detailed Description

Example 1

Referring to fig. 1 to 4, a rack and pinion safety switch structure, includes the board, sets up the upper cover on the board, and upper cover department sets up rotatable handle (the handle is connected through the pivot with the board junction), and the handle sets up the handle gear with the upper cover junction (the handle gear sets up at the handle inboard, and is connected with the pivot), handle gear and rack toothing, and the rack setting is on the board, and spacing portion and back spacing portion before setting up respectively on the board, and rack rear end and safety switch cooperation.

When the handle is operated to press down and close the upper cover, the gear is rotated to drive the rack to move left and right (back and forth when the primary visual angle of the rack and pinion safety switch structure is taken as a reference), when the handle is fully pressed down (the upper cover is fully closed), the rack moves to the leftmost side (the last side when the primary visual angle of the rack and pinion safety switch structure is taken as a reference), the safety switch is triggered (including but not limited to program control triggering the safety switch), the machine can be started to work (the safety switch is connected with a machine (coffee machine) control unit, a signal generated after the end of the rack triggers the safety switch is transmitted to the control unit, the control unit controls the machine (coffee machine) to work, if the signal is not available, the control unit controls the machine (coffee machine) to stop working, the safety switch structure ensures that the machine can only work under the state that the handle is fully pressed down (the upper cover is fully closed), otherwise under any condition, when the upper cover is opened, the machine is stopped unconditionally to ensure safety.

For the sake of brevity, the description of the prior art is omitted herein.

Example 2

The basic structure is the same as that of embodiment 1, except that, in order to improve the limiting effect, a middle limiting part (correspondingly, a middle limiting hole is arranged on the rack, and the middle limiting hole is used in cooperation with the middle limiting part) and a bottom limiting part (correspondingly, a bottom limiting port is arranged on the rack, and the bottom limiting port is used in cooperation with the bottom limiting part) are arranged on the machine table.

Example 3

The basic structure is the same as that of embodiment 1 or embodiment 2, except that in order to improve the convenience of using the rack portion, a threaded hole (not shown) is provided at the rear end of the rack (the direction is referred to the front view angle of the rack-and-pinion safety switch structure), and an adjusting bolt is provided in the threaded hole.

Above only do the preferred embodiment of the present invention, the protection scope of the present invention is not limited to the above embodiment, all belong to the technical scheme of the present invention all belong to the protection scope of the present invention. For those skilled in the art, several modifications can be made without departing from the principle of the present invention, and such modifications should also be considered as the protection scope of the present invention.

Claims

1. The utility model provides a rack and pinion safety switch structure, includes the board, sets up the upper cover on the board, and upper cover department sets up rotatable handle, its characterized in that, handle and upper cover junction set up the handle gear, handle gear and rack toothing, and the rack setting is on the board, and limit portion and back limit portion before setting up respectively on the board, and rack rear end and safety switch cooperation.

2. The safety switch structure according to claim 1, wherein the machine platform is provided with a middle limiting part and a bottom limiting part, wherein the rack is provided with a middle limiting hole, the middle limiting hole is matched with the middle limiting part, the rack is provided with a bottom limiting opening, and the bottom limiting opening is matched with the bottom limiting part.