CN219575456U - Travel switch assembly - Google Patents
Travel switch assembly Download PDFInfo
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- CN219575456U CN219575456U CN202320490025.9U CN202320490025U CN219575456U CN 219575456 U CN219575456 U CN 219575456U CN 202320490025 U CN202320490025 U CN 202320490025U CN 219575456 U CN219575456 U CN 219575456U
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- sleeve
- shell
- guide rod
- guide
- end part
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Abstract
The utility model relates to a travel switch assembly, which comprises a shell, a guide rod and a contact mechanism, wherein one end of the shell is provided with a guide hole communicated with the interior of the shell, the guide rod slides through the guide hole, and the outer end part of the guide hole is provided with a collision end; the inner wall of one side of the shell far away from the guide hole is fixed with a sleeve facing the guide hole, and the end part of the guide rod in the shell penetrates through and extends into the sleeve; the sleeve is filled with oil, a piston matched with the inner wall of the sleeve is arranged at the end part of the guide rod, which is positioned in the sleeve, and penetrating circulation holes are uniformly distributed on the piston; a contact mechanism is arranged in the shell and is used for communicating with a circuit. According to the utility model, the damping effect is formed on vibration generated by impact through friction between oil liquid and the wall of the circulation hole and friction between molecules in the oil liquid, and the vibration is effectively buffered, so that damage to components in the shell caused by excessive vibration is prevented, the service life is prolonged, the overall structure layout is reasonable, and the practicability is high.
Description
Technical Field
The utility model relates to the technical field of travel switches, in particular to a travel switch assembly.
Background
The travel switch is also called a position switch or a limit switch, has the same function as a button, and is used for controlling the movement direction, the travel size or the position protection of the production machine by utilizing the fact that a stop iron on some moving parts of the production machine collides with a roller of the production machine to enable a contact to act so as to switch on or switch off some circuits, and the contact reset action is performed through manual operation or mechanical automatic reset.
In order to avoid damaging the contact mechanism when receiving the impact force, the conventional travel switch can be provided with a buffer device for buffering impact, and the conventional travel switch is disclosed in China patent with a reference publication number of CN203850163U, can effectively protect the contact mechanism, can prolong the service life, is simple and convenient to operate and is convenient to install.
The device buffers impact through the spring, the buffer to impact force is not ideal enough, and impact force generated by high impact still can make the whole device vibrate, so that internal components are easy to damage.
Disclosure of Invention
The utility model aims to provide a travel switch assembly which has a damping effect, prevents components from being damaged by vibration and effectively solves the problems in the background art.
In order to achieve the above purpose, the present utility model provides the following technical solutions.
A travel switch assembly comprises a shell, a guide rod and a contact mechanism, wherein one end of the shell is provided with a guide hole communicated with the interior of the shell, the guide rod penetrates through the guide hole in a sliding manner, and the outer end part of the guide hole is provided with a collision end; the inner wall of one side of the shell far away from the guide hole is fixed with a sleeve facing the guide hole, and the end part of the guide rod in the shell penetrates through and extends into the sleeve; the sleeve is filled with oil, a piston matched with the inner wall of the sleeve is arranged at the end part of the guide rod, which is positioned in the sleeve, and penetrating circulation holes are uniformly distributed on the piston; a contact mechanism is arranged in the shell and is used for communicating with a circuit.
Therefore, when the collision end is impacted, the collision end pushes the guide rod to move in the sleeve, the guide rod pushes the piston to move along the inside of the sleeve to one side far away from the collision end, the piston can compress oil filled in the sleeve, the oil can pass through the circulation hole formed in the piston to move to the other side, in the oil moving process, friction occurs between the oil and the wall of the circulation hole, vibration generated by the impact is damped, the vibration is effectively buffered, damage to components inside the shell caused by excessive vibration is prevented, the service life is prolonged, the overall structure is reasonable in layout, and the practicability is high.
Further, a threaded hole extending along the length direction of the guide rod is formed in the end part, far away from the sleeve, of the guide rod, and a screw rod is arranged in the threaded hole; the collision end is fixed on the end of the screw rod extending to the outer side of the guide rod.
Because screw rod screw thread installs at threaded hole, can adjust the meeting position of collision end and guide arm through the screw rod of screwing, realize the regulation to spacing distance, the practicality is high.
Further, a spring is sleeved on the guide rod, one end of the spring is abutted against the end part of the shell, and the other end of the spring is abutted against the collision end.
Through establish the spring at the outside cover of guide arm, on the one hand, the spring is pressed and compressed when striking, with the damping effect cooperation that piston compression fluid formed, further promoted the cushioning effect to the impact force, on the other hand, when mobile device return stroke, through the elasticity effect of spring, can promote guide arm and collision end and remove the reset, a thing is dual-purpose, the practicality is higher, after using for a long time, the condition that the spring can appear warping, leads to elasticity to reduce, unscrews the screw rod from threaded hole, with collision end from guide arm tip pull down, be convenient for change the spring.
Further, side grooves are formed in the inner walls of the two sides of the shell respectively, a mounting rod is fixed on the guide rod, and two ends of the mounting rod are correspondingly limited in the side grooves.
The two ends of the mounting rod are limited in the side grooves, so that the guide rod can be prevented from being driven to rotate when the screw rod is screwed.
Further, the contact mechanism comprises fixed contacts which are respectively arranged on the inner walls of the two sides of the side groove, and movable contacts which are respectively arranged at the two ends of the mounting rod; the movable contact and the fixed contact are correspondingly arranged in position; when the mounting rod is abutted against the end part of the sleeve, which is close to one side of the collision end, the moving contact is just contacted with the fixed contact, which is close to the sleeve.
The guide rod drives the installation pole synchronous movement in the removal in-process, when the guide rod drives the installation pole to sleeve one side remove, the installation pole drives the moving contact and is close to sleeve one side's stationary contact conflict, when the guide rod drives the installation pole and resets, the installation pole drives the moving contact and is kept away from sleeve one side's stationary contact conflict, realize the switch-on of circuit, simultaneously at guide rod drive installation pole to sleeve one side remove the in-process, when the installation pole is close to the tip conflict of collision end one side with the sleeve, the moving contact just contacts with the stationary contact that is close to sleeve department, thereby can effectually protect contact mechanism, avoid the impact to cause contact mechanism's damage.
Further, the outside of the collision end is wrapped with a rubber sleeve.
Through set up the rubber sleeve in collision end outside, the same buffering effect that has, further hoisting device's vibration prevention and buffering effect.
Drawings
FIG. 1 is a perspective view of the overall structure of the present utility model;
FIG. 2 is a schematic cross-sectional view of a housing according to the present utility model;
FIG. 3 is a schematic cross-sectional view of a sleeve according to the present utility model;
fig. 4 is an enlarged schematic view of the structure at a in fig. 2.
In the figure: 1. a housing; 11. a guide hole; 12. a side groove; 2. a guide rod; 3. a sleeve; 31. a piston; 311. a flow hole; 4. a collision end; 41. a threaded hole; 42. a screw; 5. a mounting rod; 6. a contact mechanism; 61. a stationary contact; 63. a moving contact; 7. and (3) a spring.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, the travel switch assembly provided by the utility model comprises a housing 1, a guide rod 2 and a contact mechanism 6, wherein one end of the housing 1 is provided with a guide hole 11 communicated with the interior of the housing 1, the guide rod 2 slides through the guide hole 11, and the outer end part of the guide hole 11 is provided with a collision end head 4; the inner wall of the side of the shell 1 far away from the guide hole 11 is fixedly provided with a sleeve 3 facing the guide hole 11, and the end part of the guide rod 2 positioned in the shell 1 extends into the sleeve 3 in a penetrating way; the sleeve 3 is filled with oil, a piston 31 matched with the inner wall of the sleeve 3 is arranged at the end part of the guide rod 2 positioned in the sleeve 3, and penetrating circulation holes 311 are uniformly distributed on the piston 31; a contact mechanism 6 is provided in the housing 1 for communicating with an electrical circuit.
When the device is used, when the collision end 4 is impacted, the collision end 4 pushes the guide rod 2 to move in the sleeve 3, the guide rod 2 pushes the piston 31 to move along the inside of the sleeve 3 to the side far away from the collision end 4, the piston 31 can compress oil filled in the sleeve 3, the oil can pass through the circulation hole 311 formed in the piston 31 to move to the other side, friction occurs between the oil and the wall of the circulation hole 311 in the oil moving process, the friction between molecules in the oil forms a damping effect on vibration generated by the impact, the vibration is effectively buffered, and damage to internal components of the shell 1 caused by excessive vibration is prevented, the service life is prolonged, the overall structure layout is reasonable, and the practicability is high.
Specifically, the end of the guide rod 2 far away from the sleeve 3 is provided with a threaded hole 41 extending along the length direction of the guide rod 2, and a screw 42 is arranged in the threaded hole 41; the crash head 4 is fixed to the end of the threaded rod 42 extending outside the guide rod 2. The screw 42 is arranged in the threaded hole 41 in a threaded manner, so that the meeting position of the collision end 4 and the guide rod 2 can be adjusted by screwing the screw 42, the adjustment of the limiting distance is realized, and the practicability is high.
Specifically, the guide rod 2 is sleeved with a spring 7, one end of the spring 7 is abutted against the end part of the shell 1, and the other end of the spring 7 is abutted against the collision end 4. Through establish spring 7 at the outside cover of guide arm 2, on the one hand, spring 7 is pressed and compressed when the striking, with the damping effect cooperation that piston 31 compressed fluid formed, further promoted the cushioning effect to the impact force, on the other hand, when mobile device return stroke, through spring 7's elasticity effect, can promote guide arm 2 and collision end 4 and remove to reset, a thing is dual-purpose, the practicality is higher, after long-time use, the condition of deformation can appear in spring 7, lead to elasticity reduction, screw rod 42 is twisted out from screw hole 41, with collision end 4 from guide arm 2 tip pull down, be convenient for change spring 7.
Specifically, the inner walls of the two sides of the shell 1 are respectively provided with a side groove 12, the guide rod 2 is fixedly provided with a mounting rod 5, and two ends of the mounting rod 5 are correspondingly limited in the side grooves 12. The two ends of the mounting rod 5 are limited in the side grooves 12, so that the guide rod 2 is prevented from rotating when the screw rod 42 is screwed.
Specifically, the contact mechanism 6 includes fixed contacts 61 respectively mounted on the inner walls of both sides of the side groove 12, and movable contacts 63 respectively mounted on both ends of the mounting rod 5; the movable contact 63 is arranged corresponding to the fixed contact 61 in position; when the mounting rod 5 abuts against the end of the sleeve 3 on the side close to the collision end 4, the moving contact 63 just contacts the fixed contact 61 near the sleeve 3. The guide rod 2 drives the installation pole 5 to synchronously move in the moving process, when the guide rod 2 drives the installation pole 5 to move towards one side of the sleeve 3, the installation pole 5 drives the moving contact 63 to collide with the fixed contact 61 close to one side of the sleeve 3, when the guide rod 2 drives the installation pole 5 to reset, the installation pole 5 drives the moving contact 63 to collide with the fixed contact 61 far away from one side of the sleeve 3, the circuit is connected, and meanwhile, in the moving process of the guide rod 2 driving the installation pole 5 towards one side of the sleeve 3, when the installation pole 5 collides with the end part of the sleeve 3 close to one side of the collision end 4, the moving contact 63 just contacts with the fixed contact 61 close to one side of the sleeve 3, so that the contact mechanism 6 can be effectively protected, and the damage of the contact mechanism 6 caused by the impact is avoided.
Specifically, the collision end 4 is externally wrapped with a rubber sleeve. The rubber sleeve is arranged outside the collision end 4, so that the same buffer effect is achieved, and the vibration prevention and buffer effects of the device are further improved.
The foregoing detailed description of the utility model has been presented in conjunction with a specific embodiment, and it is not intended that the utility model be limited to such detailed description. Several equivalent substitutions or obvious modifications will occur to those skilled in the art to which this utility model pertains without departing from the spirit of the utility model, and the same should be considered to be within the scope of this utility model as defined in the appended claims.
Claims (6)
1. The utility model provides a travel switch assembly, includes shell (1), guide arm (2) and contact mechanism (6), its characterized in that:
one end of the shell (1) is provided with a guide hole (11) communicated with the inside of the shell (1), the guide rod (2) penetrates through the guide hole (11) in a sliding mode, and the outer end portion of the guide hole (11) is provided with a collision end head (4);
the inner wall of one side of the shell (1) far away from the guide hole (11) is fixedly provided with a sleeve (3) facing the guide hole (11), and the end part of the guide rod (2) positioned in the shell (1) extends into the sleeve (3) in a penetrating way;
the sleeve (3) is internally filled with oil, a piston (31) matched with the inner wall of the sleeve (3) is arranged at the end part of the guide rod (2) positioned in the sleeve (3), and penetrating circulation holes (311) are uniformly distributed on the piston (31);
a contact mechanism (6) is arranged in the shell (1) and is used for communicating a circuit.
2. A travel switch assembly as defined in claim 1 wherein:
the end part of the guide rod (2) far away from the sleeve (3) is provided with a threaded hole (41) extending along the length direction of the guide rod (2), and a screw (42) is arranged in the threaded hole (41);
the collision end (4) is fixed on the end part of the screw rod (42) extending to the outer side of the guide rod (2).
3. A travel switch assembly as defined in claim 1 wherein:
the guide rod (2) is sleeved with a spring (7), one end of the spring (7) is abutted against the end part of the shell (1), and the other end of the spring (7) is abutted against the collision end head (4).
4. A travel switch assembly as defined in claim 1 wherein:
side grooves (12) are formed in the inner walls of the two sides of the shell (1) respectively, a mounting rod (5) is fixed on the guide rod (2), and two ends of the mounting rod (5) are correspondingly limited in the side grooves (12).
5. A travel switch assembly as defined in claim 4 wherein:
the contact mechanism (6) comprises fixed contacts (61) which are respectively arranged on the inner walls of the two sides of the side groove (12) and movable contacts (63) which are respectively arranged at the two ends of the mounting rod (5);
the movable contact (63) and the fixed contact (61) are correspondingly arranged in position;
when the mounting rod (5) is abutted against the end part of the sleeve (3) close to one side of the collision end (4), the moving contact (63) is just contacted with the fixed contact (61) close to the sleeve (3).
6. A travel switch assembly as defined in claim 1 wherein:
the collision end head (4) is externally wrapped with a rubber sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320490025.9U CN219575456U (en) | 2023-03-13 | 2023-03-13 | Travel switch assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320490025.9U CN219575456U (en) | 2023-03-13 | 2023-03-13 | Travel switch assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219575456U true CN219575456U (en) | 2023-08-22 |
Family
ID=87672206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320490025.9U Active CN219575456U (en) | 2023-03-13 | 2023-03-13 | Travel switch assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219575456U (en) |
-
2023
- 2023-03-13 CN CN202320490025.9U patent/CN219575456U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |