CN219626542U - Pressure switch with long service life - Google Patents
Pressure switch with long service life Download PDFInfo
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- CN219626542U CN219626542U CN202320284709.3U CN202320284709U CN219626542U CN 219626542 U CN219626542 U CN 219626542U CN 202320284709 U CN202320284709 U CN 202320284709U CN 219626542 U CN219626542 U CN 219626542U
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- pressure switch
- piston rod
- sliding
- groove
- limiting
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Abstract
The utility model relates to a pressure switch with long service life, which belongs to the technical field of pressure switches and comprises a switch body, wherein an installation base is fixedly arranged at the top end of the switch body, a piston rod is slidably arranged at the inner side of the bottom end of the installation base, and a sliding groove is formed in the inner wall of the middle part of the switch body. Compared with the prior art, through spout, slide and the seal cover that sets up, be convenient for this pressure switch in the use, install the seal cover on the top of slide through the fixed block, then install the slide in the piston rod, so that can drive the slide extrusion piston rod through spacing axle when the seal cover receives external drive power and remove the normally closed contact disconnection and the normally open contact closure that realize micro-gap, the bottom of slide and the top contact of spring this moment, when the slide continues to receive the drive power drive, can cushion and support through the spring, avoid the continuous extrusion of drive power to lead to micro-gap damage, thereby the holistic life of pressure switch has been improved.
Description
Technical Field
The utility model relates to the technical field of pressure switches, in particular to a pressure switch with long service life.
Background
The pressure switch is an electric contact device for driving the switch through the action of gas or liquid pressure, when the power element is driven by external gas or liquid, the elastic force of the compression spring can be overcome, the piston ejector rod is pushed to move upwards, so that the micro switch acts (namely, the normally closed contact is opened, and the normally open contact is closed), the circuit is controlled to be disconnected, and the pressure switch is usually used for detecting the domestic air pressure in the use process of the pressure cooker.
In the use process of the existing pressure switch, the piston rod is pushed by external gas or liquid to extrude the micro switch to realize the normally closed contact opening and the normally open contact closing of the switch, but the driving force generated by the external gas or liquid is continuously present, and once the pressure exceeds a critical value, the micro switch is damaged, so that the whole service life of the pressure switch is influenced, and therefore, the pressure switch with long service life is provided.
Disclosure of Invention
Aiming at the problems, the utility model provides the pressure switch with long service life, which has the advantages of convenience and high efficiency for protecting the micro switch and avoiding the damage to the micro switch caused by a piston rod under the condition of larger driving force.
The technical scheme of the utility model is as follows:
the utility model provides a long-life pressure switch, includes the switch body, the top fixed mounting of switch body has the installation base, the inboard slidable mounting of bottom of installation base has the piston rod, set up the spout on the middle part inner wall of switch body, the interior sliding mounting of spout has the slide, the lower surface of slide and the last fixed surface of piston rod are connected, the last fixed surface of slide is connected with the fixed block, the seal cover is installed through the installation component in the outside of fixed block, the last fixed surface of seal cover is connected with the guard plate, respectively fixedly connected with supporting seat on the bottom inner wall at both ends around the spout, the last fixed surface of supporting seat is connected with the spring, the top fixedly connected with cushion of spring.
In further technical scheme, the upper surface inboard of supporting seat is connected with spacing axle through the bearing rotation, the inboard of cushion has the stripper plate through spacing subassembly slidable mounting, stripper plate threaded mounting is in the top outside of spacing axle, the top of spacing axle runs through the slide, hexagonal recess has been seted up to the upper surface of spacing axle, square groove has been seted up to the top inner wall of spout, the recess with stripper plate looks adaptation has been seted up to the upper surface of cushion, the top of spacing axle runs through the cushion.
In a further technical scheme, the installation component is including seting up in the mounting groove of seal cover lower surface and fixed block looks adaptation, the fixed slot by running through to seal cover one end inboard is seted up to one side of seal cover, the screw pole is installed to the fixed slot internal thread.
In a further technical scheme, the distance between the upper surface of the cushion block and the sliding groove is equal to the moving stroke of the piston rod, and the distance between the supporting seat and the cushion block is the buffering stroke of the piston rod.
In further technical scheme, spacing subassembly includes the stopper of fixed connection on the inner wall of cushion top both ends, the spacing groove with stopper looks adaptation has been seted up at the both ends of stripper plate, stopper slidable mounting is in the spacing inslot.
In a further technical scheme, the upper surfaces of the front end and the rear end of the sliding plate are respectively provided with a through hole, the top end of the limiting shaft penetrates through the through holes, and the inner diameter of the through holes is larger than the diameter of the extrusion plate and smaller than the diameter of the cushion block.
The beneficial effects of the utility model are as follows:
compared with the prior art, through spout, slide and the seal cover that sets up, be convenient for this pressure switch in the use, install the seal cover on the top of slide through the fixed block, then install the slide in the piston rod, so that can drive the slide extrusion piston rod through spacing axle when the seal cover receives external drive power and remove the normally closed contact disconnection and the normally open contact closure that realize micro-gap, the bottom of slide and the top contact of spring this moment, when the slide continues to receive the drive power drive, can cushion and support through the spring, avoid the continuous extrusion of drive power to lead to micro-gap damage, thereby the holistic life of pressure switch has been improved.
Compared with the prior art, through supporting seat, cushion and stripper plate that set up, this pressure switch of being convenient for is in the use, can screw thread promotion stripper plate through rotating spacing axle and remove at the top inboard of cushion under the spacing effect of spring and cushion to can realize spring elastic adjustment, so that the piston rod still has certain removal buffering space and buffer pressure after realizing that micro-gap switch is closed, avoid driving force too big direct the deformation that leads to micro-gap switch to take place to appear damaging.
Drawings
FIG. 1 is a schematic overall structure of an embodiment of the present utility model;
FIG. 2 is a schematic cross-sectional structural view of an embodiment of the mounting base of the present utility model;
FIG. 3 is a schematic view of a spring according to an embodiment of the present utility model;
FIG. 4 is a schematic view of a limiting shaft according to an embodiment of the present utility model;
figure 5 is a schematic cross-sectional structural view of a sealing sleeve according to an embodiment of the utility model.
Reference numerals illustrate:
1. a switch body; 2. a mounting base; 3. a piston rod; 4. a protection plate; 5. a chute; 6. a slide plate; 7. a fixed block; 8. a spring; 9. a mounting groove; 10. a fixing groove; 11. a square groove; 12. a support base; 13. a cushion block; 14. a limiting shaft; 15. an extrusion plate; 16. sealing sleeve; 17. a screw rod.
Description of the embodiments
Embodiments of the present utility model are further described below with reference to the accompanying drawings.
Examples
As shown in fig. 1-5, a pressure switch with long service life comprises a switch body 1, a mounting base 2 is fixedly mounted at the top end of the switch body 1, a piston rod 3 is slidably mounted at the inner side of the bottom end of the mounting base 2 so that the piston rod 3 drives a micro switch in the switch body 1 under the action of external driving force, an elastic card on the micro switch moves to realize the opening of a normally closed contact and the closing of a normally open contact, a sliding groove 5 is formed in the inner wall of the middle part of the switch body 1, a sliding plate 6 is slidably mounted in the inner side of the sliding groove 5 so as to facilitate the sliding of the sliding plate 6 in the sliding groove 5 in the mounting base 2, the lower surface of the sliding plate 6 is fixedly connected with the upper surface of the piston rod 3 so as to drive the piston rod 3 to realize limit movement, a fixing block 7 is fixedly connected with the upper surface of the sliding plate 6 so as to facilitate the mounting of a sealing sleeve 16, the outside of the fixed block 7 is provided with a sealing sleeve 16 through a mounting component, the upper surface of the sealing sleeve 16 is fixedly connected with a protection plate 4 to realize the sealing between the top end of a piston rod 3 and a mounting base 2 so as to facilitate the generation of driving force by external gas and liquid, the upper surface of the sealing sleeve 16 is fixedly connected with the protection plate 4 to improve the strength of the pressure part at the top end of the sealing sleeve 16, the inner walls of the bottom ends at the front end and the rear end of the sliding groove 5 are respectively fixedly connected with a supporting seat 12 to avoid the damage of a spring 8 to the inner wall of the sliding groove 5, the upper surface of the supporting seat 12 is fixedly connected with the spring 8 to play a role of buffering, the top end of the spring 8 is fixedly connected with a cushion block 13 so as to facilitate the downward movement of a sliding plate 6 to play a supporting role, the mounting component comprises a mounting groove 9 arranged on the lower surface of the sealing sleeve 16 and matched with the fixed block 7, so that the installation of seal cover 16 on fixed block 7, seal cover 16's one side is offered by running through to seal cover 16 one end inboard fixed slot 10 to the screw pole 17 realizes that seal cover 16 installs fixedly on fixed block 7, the screw pole 17 is installed to the fixed slot 10 internal thread, realizes that seal cover 16's installation is fixed, the interval between cushion 13 upper surface and the spout 5 equals piston rod 3's removal stroke, so that guarantee that piston rod 3 drives the micro-gap switch and realizes that normally closed contact breaks and normally open contact closed stroke is unchangeable, the interval between supporting seat 12 to cushion 13 is piston rod 3's buffering stroke, makes the last elastic connection piece of micro-gap have certain deformation space, avoids appearing damaging by atress always, the through-hole has been seted up respectively to the upper surface at both ends around the slide 6, the top of spacing axle 14 runs through the through-hole, the internal diameter of through-hole is greater than the diameter of stripper plate 15 and is less than the diameter of cushion 13 for the removal of slide 6 can not receive stripper plate 15 influence.
The working principle of the technical scheme is as follows:
firstly, the sealing sleeve 16 is sleeved on the outer side of the fixed block 7 through the mounting groove 9, the fixing groove 10 on the fixed block 7 is aligned with the fixing groove 10 on the sealing sleeve 16, then, the fixed connection between the sealing sleeve 16 and the fixed block 7 is realized through the screw rod 17, when the protection plate 4 is subjected to driving force generated by external gas and liquid, the protection plate 4 acts on the sealing sleeve 16, then, the sealing sleeve 16 and the fixed block 7 act on the sliding plate 6, the sliding plate 6 drives the piston rod 3 to have a certain buffer space under the limiting effect of the sliding groove 5 and the supporting effect of the spring 8, so that the piston rod 3 has a certain buffer space when the elastic card is driven to realize the disconnection of the normally closed contact and the closing of the normally open contact, and the piston rod 3 is prevented from being damaged under the continuous action of the driving force, thereby the whole service life of the micro-switch elastic card and the pressure card is prolonged.
In another embodiment, as shown in fig. 3 and fig. 4, the inner side of the upper surface of the supporting seat 12 is rotatably connected with a limiting shaft 14 through a bearing so as to drive the extrusion plate 15 to slide on the inner side of the cushion block 13, the extrusion plate 15 is slidably mounted on the inner side of the cushion block 13 through a limiting component so as to realize the stability of the sliding of the extrusion plate 15, the extrusion cushion block 13 is downwardly pressed to realize the elastic adjustment of the spring 8, the extrusion plate 15 is threadably mounted on the outer side of the top end of the limiting shaft 14, the top end of the limiting shaft 14 penetrates through the sliding plate 6, a hexagonal groove is formed in the upper surface of the limiting shaft 14, a square groove 11 is formed in the inner wall of the top end of the sliding groove 5 so as to facilitate the rotation of the limiting shaft 14, a groove matched with the extrusion plate 15 is formed in the inner side of the cushion block 13, the top end of the limiting shaft 14 penetrates through the cushion block 13, the limiting component comprises limiting blocks fixedly connected to the inner walls at two ends of the top end of the cushion block 13, and limiting grooves matched with the limiting blocks are formed in two ends of the extrusion plate 15, and the limiting blocks are slidably mounted in the limiting grooves so as to guarantee the stability of the movement of the limiting plates 15.
The hexagonal wrench is clamped with the hexagonal groove at the top end of the limiting shaft 14 through the square groove 11, and then the limiting shaft 14 is rotated to drive the extrusion plate 15 to move downwards to adjust the height of the cushion block 13 and elastically adjust the spring 8, so that the protection of the elastic card can be further achieved under the support of the spring 8 when the sliding plate 6 moves downwards, and the damage of the elastic card is avoided to influence the service life of the pressure clamp.
The foregoing examples merely illustrate specific embodiments of the utility model, which are described in greater detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.
Claims (6)
1. The utility model provides a long-life pressure switch, includes switch body (1), the top fixed mounting of switch body (1) has installation base (2), the inboard slidable mounting of bottom of installation base (2) has piston rod (3), its characterized in that: the switch is characterized in that a sliding groove (5) is formed in the inner wall of the middle of the switch body (1), a sliding plate (6) is mounted in the inner sliding of the sliding groove (5), the lower surface of the sliding plate (6) is fixedly connected with the upper surface of a piston rod (3), a fixing block (7) is fixedly connected with the upper surface of the sliding plate (6), a sealing sleeve (16) is mounted on the outer side of the fixing block (7) through a mounting assembly, protection plates (4) are fixedly connected with the upper surface of the sealing sleeve (16), supporting seats (12) are fixedly connected to the inner walls of the bottom ends of the front end and the rear end of the sliding groove (5), springs (8) are fixedly connected to the upper surface of the supporting seats (12), and cushion blocks (13) are fixedly connected to the top ends of the springs (8).
2. A long life pressure switch as defined in claim 1, wherein: the utility model discloses a sliding block type elevator is characterized in that a limiting shaft (14) is connected to the inner side of the upper surface of a supporting seat (12) through bearing rotation, an extrusion plate (15) is arranged on the inner side of a cushion block (13) through a limiting component sliding, the extrusion plate (15) is arranged on the outer side of the top end of the limiting shaft (14) in a threaded mode, the top end of the limiting shaft (14) penetrates through a sliding plate (6), a hexagonal groove is formed in the upper surface of the limiting shaft (14), a square groove (11) is formed in the inner wall of the top end of a sliding groove (5), and a groove matched with the extrusion plate (15) is formed in the upper surface of the cushion block (13), and the top end of the limiting shaft (14) penetrates through the cushion block (13).
3. A long life pressure switch as defined in claim 1, wherein: the mounting assembly comprises a mounting groove (9) formed in the lower surface of the sealing sleeve (16) and matched with the fixing block (7), one side of the sealing sleeve (16) is provided with a fixing groove (10) penetrating through the inner side of one end of the sealing sleeve (16), and a screw rod (17) is mounted in the fixing groove (10) through internal threads.
4. A long life pressure switch as claimed in claim 2, wherein: the distance between the upper surface of the cushion block (13) and the sliding groove (5) is equal to the moving stroke of the piston rod (3), and the distance between the supporting seat (12) and the cushion block (13) is the buffering stroke of the piston rod (3).
5. A long life pressure switch as claimed in claim 2, wherein: the limiting assembly comprises limiting blocks fixedly connected to the inner walls of two ends of the top of the cushion block (13), limiting grooves matched with the limiting blocks are formed in two ends of the extruding plate (15), and the limiting blocks are slidably mounted in the limiting grooves.
6. A long life pressure switch as claimed in claim 2, wherein: through holes are respectively formed in the upper surfaces of the front end and the rear end of the sliding plate (6), the top end of the limiting shaft (14) penetrates through the through holes, and the inner diameter of the through holes is larger than the diameter of the extrusion plate (15) and smaller than the diameter of the cushion block (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320284709.3U CN219626542U (en) | 2023-02-22 | 2023-02-22 | Pressure switch with long service life |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320284709.3U CN219626542U (en) | 2023-02-22 | 2023-02-22 | Pressure switch with long service life |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219626542U true CN219626542U (en) | 2023-09-01 |
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ID=87768966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320284709.3U Active CN219626542U (en) | 2023-02-22 | 2023-02-22 | Pressure switch with long service life |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219626542U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116884806A (en) * | 2023-09-07 | 2023-10-13 | 常州天利智能控制股份有限公司 | High life impact-resistant nuclear level pressure switch |
-
2023
- 2023-02-22 CN CN202320284709.3U patent/CN219626542U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116884806A (en) * | 2023-09-07 | 2023-10-13 | 常州天利智能控制股份有限公司 | High life impact-resistant nuclear level pressure switch |
| CN116884806B (en) * | 2023-09-07 | 2023-11-14 | 常州天利智能控制股份有限公司 | High life impact-resistant nuclear level pressure switch |
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