CN219286247U - Limit switch convenient to wiring - Google Patents

Abstract

The utility model discloses a limit switch convenient for wiring, which comprises a first base body, a second base body, a power connection base, a rotating shaft, a torsion spring, a ceramic push block and a movable column, wherein the first base body is connected with the second base body, a first installation cavity is arranged in the first base body, a wiring pipe is installed on the first base body and is communicated with the first installation cavity, the first installation cavity is internally provided with the power connection base, two wiring surfaces positioned on different planes are arranged outside the power connection base, the two wiring surfaces are parallel to each other, two wiring terminals are fixed on each wiring surface, and the wiring terminals on the same wiring surface form a group of wiring columns. According to the utility model, the wiring surfaces on two different planes are arranged on the power connection seat, and one wiring surface corresponds to one group of wiring posts, so that the wiring of the limit switch is convenient, the wires are not easy to be entangled together, the probability of the contact of copper wires on different wires is also small, and the use is safer.

Description

Limit switch convenient to wiring

Technical Field

The utility model relates to the technical field of electric appliances, in particular to the technical field of limit switches.

Background

Limit switches, also known as travel switches, may be mounted on relatively stationary objects or on moving objects. When an animal approaches a stationary object, the link of the switch drives the contacts of the switch to cause the closed contacts to break or the open contacts to close. The switch contacts are changed to control the circuit and the motor. The internal connection seat of the existing limit switch has the defects that binding posts are positioned on the same plane, the wiring is relatively inconvenient, wires are easy to be entangled together, the probability of mutual contact of copper wires on different wires is relatively high, and certain potential safety hazards exist.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provides a limit switch convenient for wiring, which can facilitate wiring.

In order to achieve the above purpose, the utility model provides a limit switch convenient for wiring, comprising a first base body, a second base body, an electric connection base, a rotating shaft, a torsion spring, a ceramic push block and a movable column, wherein the first base body is connected with the second base body, a first installation cavity is arranged in the first base body, a wiring pipe is arranged on the first base body and is communicated with the first installation cavity, the first installation cavity is internally provided with the electric connection base, two wiring surfaces positioned on different planes are arranged outside the electric connection base, the two wiring surfaces are parallel to each other, each wiring surface is fixedly provided with two wiring posts, the wiring posts on the same wiring surface form a group of wiring posts, a cavity is arranged in the electric connection base, four fixed contacts are arranged in the cavity, each fixed contact corresponds to one wiring post, the fixed contacts are fixed with the corresponding wiring posts, the fixed contacts on the same group of wiring posts form a group of fixed contacts, the cavity is internally provided with a movable column, the movable column is fixedly provided with a movable contact, the movable column is sleeved with a first spring, the first spring is positioned on the side of the movable contact far away from the second seat, one end of the first spring is propped against the movable contact, the other end of the first spring is propped against the inner wall of the cavity, the side of the cavity close to the second seat is provided with a communication hole, a ceramic push block is inserted into the communication hole, the ceramic push block is contacted with the movable column, the inside of the second seat is provided with a second installation cavity, a rotating shaft is inserted into the second installation cavity from the outside of the second seat, a rotating arm is arranged on the rotating shaft, the rotating arm is positioned outside the second seat, a torsion spring is arranged on the rotating shaft in a sleeved mode, the torsion spring is positioned in the second installation cavity, the first installation cavity is connected with the second installation cavity through a mounting hole, the installation hole is internally provided with a movable shaft, the outside of the movable shaft is sleeved with a second spring, the second spring is positioned in the first installation cavity, the movable shaft is provided with a ladder surface for propping against the second spring, the other end of the second spring is propped against the power connection seat, the movable shaft is aligned with the ceramic push block, one end of the torsion spring is fixed with the inner wall of the second installation cavity, the other end of the torsion spring can move in the second installation cavity, a movable block is arranged in the second installation cavity, the movable block is fixed with one end of the movable shaft, and the movable block is contacted with the movable end of the torsion spring.

Preferably, the connection tube is located on a side of the first housing away from the second housing, one of the two connection faces being closer to the connection tube, the connection face closer to the connection tube being closer to the axis of the connection tube than the other connection face.

Preferably, when the torsion spring is in a natural state, the movable shaft is separated from the ceramic push block, the movable contact piece is contacted with the group of fixed contacts close to the second base, the torsion spring is twisted until the movable shaft is tightly pressed against the ceramic push block, and the movable contact piece is contacted with the group of fixed contacts far away from the second base.

Preferably, the installation position of the rotating arm and the rotating shaft is adjustable.

The utility model has the beneficial effects that: according to the utility model, the wiring surfaces on two different planes are arranged on the power connection seat, and one wiring surface corresponds to one group of wiring posts, so that the wiring of the limit switch is convenient, the wires are not easy to be entangled together, the probability of the contact of copper wires on different wires is also small, and the use is safer.

The features and advantages of the present utility model will be described in detail by way of example with reference to the accompanying drawings.

Drawings

Fig. 1 is a front view of a limit switch of the present utility model for facilitating wiring.

In the figure: the device comprises a first seat body, a second seat body, a 3-power receiving seat, a first installation cavity, a 11-wiring pipe, a second installation cavity, a 21-rotating shaft, a 22-torsion spring, a 23-moving block, a 24-rotating arm, a 25-installation hole, a 26-movable shaft, a 27-second spring, a 30-cavity, a 31-fixed contact, a 32-movable column, a 33-movable contact, a 34-first spring, a 35-communication hole and a 36-ceramic push block.

Detailed Description

Referring to fig. 1, the limit switch for facilitating wiring of the present utility model comprises a first base 1, a second base 2, a power connection base 3, a rotating shaft 21, a torsion spring 22, a ceramic push block 36 and a movable column 32, wherein the first base 1 is connected with the second base 2, a first installation cavity 10 is arranged in the first base 1, a wiring tube 11 is installed on the first base 1, the wiring tube 11 is communicated with the first installation cavity 10, the power connection base 3 is arranged in the first installation cavity 10, two wiring surfaces on different planes are arranged outside the power connection base 3, the two wiring surfaces are parallel to each other, two wiring posts are fixed on each wiring surface, the wiring posts on the same wiring surface form a group of wiring posts, a cavity 30 is arranged in the power connection base 3, four fixed contacts 31 are arranged in the cavity 30, each fixed contact 31 corresponds to one wiring post, the fixed contact 31 is fixed with the corresponding binding post, the fixed contact 31 on the same group of binding post forms a group of fixed contact 31, a movable post 32 is arranged in the cavity 30, a movable contact 33 piece is fixed on the movable post 32, a first spring 34 is sleeved on the movable post 32, the first spring 34 is positioned on the side of the movable contact 33 piece far away from the second seat body 2, one end of the first spring 34 props against the movable contact 33 piece, the other end of the first spring 34 props against the inner wall of the cavity 30, a communication hole 35 is arranged on the side of the cavity 30 near the second seat body 2, a ceramic push block 36 is inserted on the communication hole 35, the ceramic push block 36 is contacted with the movable post 32, a second installation cavity 20 is arranged in the second seat body 2, the rotating shaft 21 is inserted into the second installation cavity 20 from the outside of the second seat body 2, a rotating arm 24 is arranged on the rotating shaft 21, the rotating arm 24 is positioned on the outside of the second seat body 2, the rotary shaft 21 is provided with a torsion spring 22, the torsion spring 22 is sleeved outside the rotary shaft 21, the torsion spring 22 is positioned in the second installation cavity 20, the first installation cavity 10 and the second installation cavity 20 are connected through an installation hole 25, a movable shaft 26 is arranged in the installation hole 25, the second spring 27 is sleeved outside the movable shaft 26, the second spring 27 is positioned in the first installation cavity 10, the movable shaft 26 is provided with a stepped surface for propping against the second spring 27, the other end of the second spring 27 is propped against the power receiving seat 3, the movable shaft 26 is aligned with the ceramic push block 36, one end of the torsion spring 22 is fixed with the inner wall of the second installation cavity 20, the other end of the torsion spring 22 can move in the second installation cavity 20, a movable block 23 is arranged in the second installation cavity 20, the movable block 23 is fixed with one end of the movable shaft 26, and the movable block 23 is contacted with the movable end of the torsion spring 22.

The wiring tube 11 is located on the side, far away from the second seat body 2, of the first seat body 1, one of the two wiring surfaces is close to the wiring tube 11, and the wiring surface close to the wiring tube 11 is closer to the axis of the wiring tube 11 than the other wiring surface, so that connected wires are convenient to separate, and wiring becomes convenient.

The movable shaft 26 is separated from the ceramic push block 36 and the movable contact 33 is contacted with the set of fixed contacts 31 close to the second seat 2 when the torsion spring 22 is in a natural state, and the movable shaft 26 is pressed against the ceramic push block 36 and the movable contact 33 is contacted with the set of fixed contacts 31 far away from the second seat 2 when the torsion spring 22 is twisted to be unable to twist.

The mounting position of the rotating arm 24 and the rotating shaft 21 is adjustable.

The working process of the utility model comprises the following steps:

in the working process of the limit switch convenient for wiring, in the initial state, the movable contact 33 is communicated with the group of fixed contacts 31 close to the second base body 2, the rotating arm 24 is pushed to rotate by other objects, the rotating shaft 21 is also rotated, the torsion spring 22 is also rotated, the movable end of the torsion spring 22 pushes the movable block 23 to move, the movable shaft 26 is also moved along with the movement, the movable shaft 26 slowly moves towards the ceramic push block 36, the movable post 32 is driven to move after being contacted with the ceramic push block 36, the movable contact 33 is driven to move along with the movable post 32, the movable contact 33 is separated from the group of fixed contacts 31 close to the second base body 2, and the group of contacts are disconnected until the movable contact 33 is contacted with the group of fixed contacts 31 far from the second base body 2, so that the group of contacts are communicated.

Because the wiring surface on two different planes is arranged on the power connection seat 3, one wiring surface corresponds to one group of wiring posts, the wiring of the limit switch becomes convenient, the wires are not easy to be entangled together, the probability of the copper wires on different wires contacting each other is also smaller, and the use is safer.

The above embodiments are illustrative of the present utility model, and not limiting, and any simple modifications of the present utility model fall within the scope of the present utility model.

Claims (4)

1. Limit switch convenient to wiring, its characterized in that: including first pedestal (1), second pedestal (2), electric seat (3), pivot (21), torsional spring (22), ceramic ejector pad (36), movable post (32), first pedestal (1) links to each other with second pedestal (2), first pedestal (1) inside is equipped with a first installation cavity (10), installs a connecting tube (11) on first pedestal (1), connecting tube (11) are linked together with first installation cavity (10), be equipped with an electric seat (3) in first installation cavity (10), electric seat (3) outside is equipped with two wiring faces that are located different planes, and two wiring faces are parallel to each other, all are fixed with two binding posts on every wiring face, and a set of terminal on the same wiring face constitutes a set of terminal, electric seat (3) inside is equipped with a cavity (30), and cavity (30) inside is equipped with four fixed contacts (31), and each fixed contact (31) corresponds a terminal, and fixed contact (31) are linked together with first installation cavity (10), and a set of terminal (32) are equipped with a fixed contact on the same movable post (32), the first spring (34) is positioned at the side of the movable contact (33) away from the second seat body (2), one end of the first spring (34) is propped against the movable contact (33) and the other end of the first spring (34) is propped against the inner wall of the cavity (30), a communication hole (35) is arranged at the side of the cavity (30) close to the second seat body (2), a ceramic push block (36) is inserted into the communication hole (35), the ceramic push block (36) is contacted with the movable column (32), a second installation cavity (20) is arranged in the second seat body (2), a rotating shaft (21) is inserted into the second installation cavity (20) from the outside of the second seat body (2), a rotating arm (24) is arranged on the rotating shaft (21), the rotating arm (24) is positioned at the outside of the second seat body (2), a torsion spring (22) is sleeved outside the rotating shaft (21), the torsion spring (22) is positioned in the second installation cavity (20), the first cavity (10) is connected with the second installation cavity (26) through the first installation cavity (26) and the second installation cavity (25), the first spring (26) is arranged in the second installation cavity (25), the second installation cavity (25) is connected with the second installation cavity (25), the movable shaft (26) is provided with a stepped surface for propping against the second spring (27), the other end of the second spring (27) is propped against the power receiving seat (3), the movable shaft (26) is aligned to the ceramic push block (36), one end of the torsion spring (22) is fixed with the inner wall of the second installation cavity (20), the other end of the torsion spring (22) can move in the second installation cavity (20), the second installation cavity (20) is internally provided with a movable block (23), the movable block (23) is fixed with one end of the movable shaft (26), and the movable block (23) is contacted with the movable end of the torsion spring (22).

2. A limit switch for facilitating wiring as defined in claim 1, wherein: the wiring tube (11) is located on the side, far away from the second base body (2), of the first base body (1), one of the two wiring surfaces is close to the wiring tube (11), and the wiring surface close to the wiring tube (11) is closer to the axis of the wiring tube (11) than the other wiring surface.

3. A limit switch for facilitating wiring as defined in claim 1, wherein: when the torsion spring (22) is in a natural state, the movable shaft (26) is separated from the ceramic push block (36), the movable contact (33) piece is contacted with the group of fixed contacts (31) close to the second base body (2), the torsion spring (22) is twisted until the movable shaft (26) is tightly pressed against the ceramic push block (36) when the torsion spring (22) cannot be twisted, and the movable contact (33) piece is contacted with the group of fixed contacts (31) far away from the second base body (2).

4. A limit switch for facilitating wiring as defined in claim 1, wherein: the installation positions of the rotating arms (24) and the rotating shaft (21) are adjustable.

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