CN220065465U

CN220065465U - Travel switch

Info

Publication number: CN220065465U
Application number: CN202321451400.5U
Authority: CN
Inventors: 单佳佳; 曹少波; 周聪; 张伯英; 吴士绘; 叶中樵; 吴海翔; 江华诚
Original assignee: Wuhan Huayu Technology Development Co ltd
Current assignee: Wuhan Huayu Technology Development Co ltd
Priority date: 2023-06-07
Filing date: 2023-06-07
Publication date: 2023-11-21
Anticipated expiration: 2033-06-07

Abstract

The utility model discloses a travel switch which comprises a transmission assembly and a conductive assembly, wherein the transmission assembly comprises a shell, a driving block and a transmission elastic piece, the driving block is arranged in the shell in a sliding manner, and the transmission elastic piece is connected with the driving block in a transmission manner and has elastic force enabling the driving block to slide towards one end of the shell. The conductive assembly comprises a first electric shock piece, a first conductive piece, a second electric shock piece and a second conductive piece, wherein the first electric shock piece is arranged at one end of the shell, the second electric shock piece is arranged at the other end of the shell, and the first conductive piece and the second conductive piece are both arranged on the driving block; the driving block is provided with a first position for enabling the first conductive piece to be in contact with the first electric shock piece and a second position for enabling the second conductive piece to be in contact with the second electric shock piece. By using the travel switch, two position information on the moving track of the moving part to be monitored can be obtained, and compared with a travel switch capable of obtaining only one position information, more complex control effects can be realized by means of the travel switch.

Description

Travel switch

Technical Field

The utility model relates to the field of stroke control equipment, in particular to a stroke switch.

Background

The travel switch is one of the position switches and is a common small-current master control electric appliance. The contact of the production mechanical moving part is enabled to act by utilizing the collision of the production mechanical moving part to realize the connection or disconnection of the control circuit, so that a certain control purpose is achieved.

The existing travel switch can see the patent with the application number of CN201310598633.2, and the moving part is connected with the button, the button drives the contact pin to move, the contact pin can be communicated with the control circuit when reaching a specific position, and the contact pin can be disconnected from the control circuit when leaving the specific position. That is, the on-off state of the control circuit is adjusted according to whether the moving part is at a specific position or not, so that the start and stop of certain parts are controlled. The travel switch can only give a start-stop command after the moving part moves to a specific position. However, in some usage scenarios, two start and stop commands are issued in sequence according to whether the moving component reaches two specific positions. And the existing travel switch cannot meet the use requirements.

Therefore, how to make the travel switch sequentially issue two start-stop commands according to the position of the moving part is a technical problem to be solved.

Disclosure of Invention

The utility model aims to overcome the technical defects, and provides a travel switch which solves the technical problem of how to enable the travel switch to sequentially send two start and stop commands according to the position of a moving part in the prior art.

In order to achieve the technical purpose, the technical scheme of the utility model comprises a travel switch, which comprises:

the transmission assembly comprises a shell, a driving block and a transmission elastic piece, wherein the driving block is arranged in the shell in a sliding manner, and the transmission elastic piece is connected with the driving block in a transmission manner and has elastic force for enabling the driving block to slide towards one end of the shell;

the conductive assembly comprises a first electric shock piece, a first conductive piece, a second electric shock piece and a second conductive piece, wherein the first electric shock piece is arranged at one end of the shell, the second electric shock piece is arranged at the other end of the shell, and the first conductive piece and the second conductive piece are both arranged on the driving block;

the driving block is provided with a first position for enabling the first conductive piece to be in contact with the first electric shock piece and a second position for enabling the second conductive piece to be in contact with the second electric shock piece.

Preferably, the driving block has a first mounting face facing the first electric shock member, the driving block has a second mounting face facing the second electric shock member, the first conductive member includes a first conductive ring, the second conductive member includes a second conductive ring, and the first conductive ring and the second conductive ring are fixed to the first mounting face and the second mounting face, respectively.

Preferably, the first contact member includes at least one pair of first contacts, and the second contact member includes at least one pair of second contacts.

Preferably, the housing is provided with a containing cavity, and the driving block and the transmission elastic piece are both arranged in the containing cavity.

Preferably, a guide hole communicated with the accommodating cavity is formed in one end of the shell, the driving block extends out of the transmission rod, and the transmission rod movably penetrates through the guide hole so that the driving block slides relative to the shell.

Preferably, the transmission elastic member comprises a transmission spring, one end of the transmission spring is abutted against the shell, and the other end of the transmission spring is abutted against the driving block.

Preferably, the shell is internally provided with a mounting groove, the driving block is provided with a bearing table, one end of the transmission spring is embedded in the mounting groove, and the other end of the transmission spring is propped against the bearing table.

Preferably, the transmission assembly further comprises a buffer member, the buffer member is provided with an elastic telescopic end, the second electric shock member is mounted at the elastic telescopic end, and the elastic telescopic end is provided with elastic force for pushing the second electric shock member to approach the driving block.

Preferably, the buffer member comprises a base, a sliding seat and a buffer spring, the base is mounted on the shell, the sliding seat is slidably arranged on the base, the elastic telescopic end is located on the sliding seat, one end of the buffer spring is propped against the base, and the other end of the buffer spring is propped against the sliding seat.

Preferably, the base is provided with a sliding hole, the sliding seat is provided with a sliding rod, the sliding rod movably penetrates through the sliding hole, so that the sliding seat slides relative to the base, and the buffer spring is sleeved on the sliding rod.

Compared with the prior art, the utility model has the beneficial effects that: firstly, connecting a moving part to be monitored with a driving block. In the initial state, the driving block is in the first position, so that the first electric shock member and the first conductive member are in contact and electrically connected with each other. When the driving block moves under the drive of the moving part to be monitored, the driving block can overcome the elastic force of the transmission elastic piece to move, so that the first conductive piece is separated from the first electric shock piece, and correspondingly, the information that the moving part to be monitored leaves the initial position can be obtained through the control circuit. Along with the continuous movement of the moving part to be monitored, the driving block can drive the second electric shock piece to contact the second conductive piece and be electrically connected with each other, so that the moving part to be monitored can be known to reach the preset position through the control circuit. By utilizing the travel switch provided by the utility model, two position information on the moving track of the moving part to be monitored can be obtained, and compared with a travel switch capable of only obtaining one position information, the travel switch can be enabled to sequentially give two start and stop commands according to the position of the moving part, so that a more complex control effect can be realized by means of the travel switch.

Drawings

FIG. 1 is a schematic view of the interior of a switch for implementing a routine of the present utility model;

FIG. 2 is a cross-sectional view of the interior of a switch embodying the routine of the present utility model;

FIG. 3 is a schematic diagram of the outline of a switch embodying the routine of the present utility model;

the transmission assembly 100, the housing 110, the accommodating cavity 111, the guide hole 112, the mounting groove 113, the driving block 120, the transmission rod 121, the support table 122, the transmission elastic member 130, the transmission spring 131, the buffer member 140, the base 141, the sliding plate 1411, the sliding seat 142, the sliding rod 1421, the buffer spring 143, the conductive assembly 200, the first electric shock member 210, the first contact 211, the first conductive member 220, the first conductive ring 221, the second electric shock member 230, the second contact 231, the second conductive member 240, and the second conductive ring 241.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1 to 3, an embodiment of the present utility model provides a travel switch, which belongs to the field of travel control devices, and the travel switch can convert position information of a moving part to be monitored into an electrical signal, so that the travel switch is used for performing some control commands. The travel switch provided by the utility model can acquire two position information on the moving track of the moving part to be monitored, and can realize more complex control effect by means of the travel switch compared with a travel switch capable of acquiring only one position information.

In some preferred embodiments, the travel switch includes a transmission assembly 100 and a conductive assembly 200, the transmission assembly 100 includes a housing 110, a driving block 120 and a transmission elastic member 130, the driving block 120 is slidably disposed in the housing 110, and the transmission elastic member 130 is in transmission connection with the driving block 120, which has an elastic force that slides the driving block 120 toward one end of the housing 110. The conductive assembly 200 includes a first contact member 210, a first conductive member 220, a second contact member 230, and a second conductive member 240, wherein the first contact member 210 is mounted at one end of the housing 110, the second contact member 230 is mounted at the other end of the housing 110, and the first conductive member 220 and the second conductive member 240 are mounted on the driving block 120. The driving block 120 has a first position where the first conductive member 220 abuts against the first contact member 210, and a second position where the second conductive member 240 abuts against the second contact member 230.

In the above embodiment, the moving member to be monitored is first connected to the driving block 120. In the initial state, the driving block 120 is in the first position, so that the first electric shock member 210 and the first conductive member 220 are in contact and electrically connected to each other. When the driving block 120 moves under the driving of the moving component to be monitored, the driving block 120 overcomes the elastic force of the transmission elastic member 130, so that the first conductive member 220 is separated from the first electric shock member 210, and accordingly, the information that the moving component to be monitored leaves the initial position can be obtained through the control circuit. As the moving member to be monitored continues to move, the driving block 120 drives the second electric shock member 230 to contact the second conductive member 240 and electrically connect with each other, so that the control circuit can know that the moving member to be monitored reaches the predetermined position. By utilizing the travel switch provided by the utility model, two position information on the moving track of the moving part to be monitored can be obtained, and compared with a travel switch capable of only obtaining one position information, the travel switch can further realize a more complex control effect.

It should be emphasized that the first contact 210, the first conductive member 220, the second contact 230, and the second conductive member 240 all need to be electrically connected to an external circuit. The first electric shock member 210 and the first conductive member 220 are connected to each other or disconnected from each other, and different electric signals are generated. Accordingly, the second electrical shock member 230 and the second electrical conductive member 240 are electrically connected to each other or disconnected from each other to generate different electrical signals. According to the change of the electric signals, two position information on the moving track of the moving part to be monitored can be obtained.

In some preferred embodiments, the drive block 120 has a first mounting face facing the first contact member 210, the drive block 120 has a second mounting face facing the second contact member 230, the first conductive member 220 includes a first conductive ring 221, the second conductive member 240 includes a second conductive ring 241, and the first conductive ring 221 and the second conductive ring 241 are secured to the first mounting face and the second mounting face, respectively.

In the above embodiment, the first conductive ring 221 and the second conductive ring 241 are fixed to the first mounting surface and the second mounting surface, respectively. When the driving block 120 approaches the first contact 210, the first contact 210 contacts the first conductive ring 221, so that the first contact 210 and the first conductive ring 221 are electrically connected to each other. When the driving block 120 approaches the second contact member 230, the second contact member 230 contacts the second conductive ring 241, so that the second contact member 230 and the second conductive ring 241 are electrically connected to each other.

In some preferred embodiments, the first contact member 210 includes at least one pair of first contacts 211 and the second contact member 230 includes at least one pair of second contacts 231.

In the above embodiment, each pair of first contacts 211 includes two first contacts 211, when both the first contacts 211 are in contact with the first conductive ring 221, the two first contacts 211 are mutually conducted, and when both the first contacts 211 are separated from the first conductive ring 221, the two first contacts 211 are mutually disconnected. Each pair of second contacts 231 includes two second contacts 231, and when both the second contacts 231 are in contact with the second conductive ring 241, the two second contacts 231 are mutually conducted, and when both the second contacts 231 are separated from the second conductive ring 241, the two second contacts 231 are mutually disconnected.

The use of multiple pairs of first contacts 211 and multiple pairs of second contacts 231 simultaneously can increase the reliability of the travel switch as a whole. If there is a poor contact between a certain pair of the first contacts 211 or a certain pair of the second contacts 231, but only a pair of the first contacts 211 and a pair of the second contacts 231 can be in normal electrical contact, the travel switch can work normally.

In some preferred embodiments, the housing 110 has a receiving cavity 111 therein, and the drive block 120 and the driving spring 130 are both disposed in the receiving cavity 111. The driving block 120 and the driving elastic member 130 are installed in the receiving chamber 111 so that the driving block 120 and the driving elastic member 130 can be included by the housing 110.

As long as the sliding implementation of the driving block 120 relative to the housing 110 is possible, in some preferred embodiments, a guide hole 112 that communicates with the accommodating cavity 111 is formed at one end of the housing 110, the driving block 120 extends out of the driving rod 121, and the driving rod 121 movably penetrates through the guide hole 112, so that the driving block 120 slides relative to the housing 110. The transmission rod 121 partially protrudes from the housing 110, and a moving part to be monitored can be connected to the transmission rod 121. So that the moving part to be monitored moves the driving block 120.

In some preferred embodiments, the driving spring 130 includes a driving spring 131, one end of the driving spring 131 abuts the housing 110, and the other end abuts the driving block 120. The compressed transmission spring 131 can apply an elastic force to the driving block 120, so that the driving block 120 can approach the first electric shock piece 210, and the first conductive piece 220 presses the first electric shock piece 210.

In some preferred embodiments, the housing 110 is provided with a mounting groove 113, the driving block 120 has a support table 122, one end of the driving spring 131 is embedded in the mounting groove 113, and the other end of the driving spring abuts against the support table 122. One end of the transmission spring 131 is embedded in the mounting groove 113, so that the transmission spring 131 can be effectively fixed.

It can be understood that the travel switch is used for obtaining the position information on the moving track of the moving component to be monitored, so as to judge whether the moving component to be detected reaches the preset position. If the moving part to be monitored is a part with larger stroke and stronger impact force, such as an artillery sliding sleeve, the moving part to be detected drives the driving block 120 to move quickly, and further drives the second conductive part 240 to move quickly, and if the second conductive part 240 is suddenly stopped after directly impacting the second electric shock part 230 without buffering, the second conductive part 240 and the second electric shock part 230 are easily damaged.

In some preferred embodiments, the transmission assembly 100 further includes a buffer member 140, the buffer member 140 has an elastically stretchable end, the second electric shock member 230 is mounted on the elastically stretchable end, and the elastically stretchable end has an elastic force for pushing the second electric shock member 230 toward the driving block 120. After the second conductive member 240 sliding at high speed collides with the second conductive member 230, the second conductive member 230 overcomes the elastic force of the elastic telescopic end and moves along with the moving direction of the second conductive member 240, so as to gradually decelerate the second conductive member 240 and avoid damage to the second conductive member 240 and the second conductive member 230 due to excessive impact force.

In some preferred embodiments, the buffer member 140 includes a base 141, a sliding seat 142 and a buffer spring 143, the base 141 is mounted on the housing 110, the sliding seat 142 is slidably disposed on the base 141, and the elastic telescopic end is located on the sliding seat 142, one end of the buffer spring 143 abuts against the base 141, and the other end abuts against the sliding seat 142.

Based on the above embodiments, in some preferred embodiments, the base 141 is provided with a sliding hole 1411, the sliding base 142 is provided with a sliding rod 1421, the sliding rod 1421 is movably penetrating through the sliding hole 1411, so that the sliding base 142 slides relative to the base 141, and the buffer spring 143 is sleeved on the sliding rod 1421.

The transmission rod 121 partially protrudes from the housing 110, and a moving part to be monitored can be connected to the transmission rod 121. In the initial state, the driving block 120 is in the first position, so that the first electric shock member 210 and the first conductive member 220 are in contact and electrically connected to each other. When the driving block 120 moves under the driving of the moving member to be monitored, the driving block 120 moves against the elastic force of the driving elastic member 130, so that the first conductive member 220 is separated from the first electric shock member 210. Correspondingly, the information of the moving part to be monitored leaving the initial position can be obtained through the control circuit. As the moving member to be monitored continues to move, the driving block 120 drives the second electric shock member 230 to contact the second conductive member 240 and electrically connect with each other, so that the control circuit can know that the moving member to be monitored reaches the predetermined position. Meanwhile, after the second conductive member 240 sliding at high speed collides with the second conductive member 230, the second conductive member 230 overcomes the elastic force of the elastic telescopic end and moves along with the moving direction of the second conductive member 240, so as to gradually decelerate the second conductive member 240 and avoid damage of the second conductive member 240 and the second conductive member 230 due to excessive impact force. By utilizing the travel switch provided by the utility model, two position information on the moving track of the moving part to be monitored can be obtained, and compared with a travel switch capable of only obtaining one position information, the travel switch can further realize a more complex control effect.

The above-described embodiments of the present utility model do not limit the scope of the present utility model. Any other corresponding changes and modifications made in accordance with the technical idea of the present utility model shall be included in the scope of the claims of the present utility model.

Claims

1. A travel switch, comprising:

2. The travel switch of claim 1, wherein the drive block has a first mounting face facing the first electrical contact member, the drive block has a second mounting face facing the second electrical contact member, the first electrical contact member comprises a first conductive ring, the second electrical contact member comprises a second conductive ring, and the first and second conductive rings are secured to the first and second mounting faces, respectively.

3. The travel switch of claim 2, wherein the first contact member comprises at least one pair of first contacts and the second contact member comprises at least one pair of second contacts.

4. The travel switch of claim 1, wherein the housing has a cavity therein, and wherein the drive block and the drive spring are both disposed within the cavity.

5. The travel switch of claim 4, wherein one end of the housing is provided with a guide hole communicated with the accommodating cavity, the driving block extends out of the driving rod, and the driving rod movably penetrates through the guide hole so that the driving block slides relative to the housing.

6. The travel switch of claim 1, wherein the drive spring comprises a drive spring having one end abutting the housing and the other end abutting the drive block.

7. The travel switch of claim 6, wherein the housing has a mounting slot therein, the drive block has a support table, and the drive spring has one end embedded in the mounting slot and the other end abutting against the support table.

8. The travel switch of claim 1, wherein the transmission assembly further comprises a buffer member having an elastically telescoping end, the second electrical shock member is mounted to the elastically telescoping end, and the elastically telescoping end has an elastic force urging the second electrical shock member toward the driving block.

9. The travel switch of claim 8, wherein the buffer member comprises a base, a sliding seat and a buffer spring, the base is mounted on the housing, the sliding seat is slidably arranged on the base, the elastic telescopic end is located on the sliding seat, one end of the buffer spring is pressed against the base, and the other end of the buffer spring is pressed against the sliding seat.

10. The travel switch of claim 9, wherein the base is provided with a sliding hole, the slide has a sliding rod, the sliding rod movably penetrates through the sliding hole to enable the slide to slide relative to the base, and the buffer spring is sleeved on the sliding rod.