Automatic start-stop device for pressure detection

Abstract

The utility model belongs to the field of pressure detection, particularly relates to an automatic start-stop device for pressure detection, and aims to solve the problems that a first contact piece and a second contact piece are connected in a vertical contact manner in the prior art, the first contact piece and the second contact piece are easy to deform and even damage if the pressure is large, and the service life of the device is shortened. The device comprises a bottom plate, a display instrument and two fixing plates are fixedly arranged on the surface of the bottom plate, the same lifting seat is connected between the two fixing plates in a sliding mode, a pressure sensitive element is fixedly arranged on the surface of the lifting seat, and first contact pieces are fixedly arranged on the inner walls of the two sides of the lifting seat. The first contact piece and the second contact piece are connected in a horizontal contact state, the pressure between the first contact piece and the second contact piece is small, the problem of structural deformation and even damage caused by overlarge pressure is avoided, abrasion caused by direct friction between structures can be reduced, and smooth operation of the structures is ensured.

Description

Technical Field

[0001] This utility model relates to the field of pressure detection technology, and in particular to an automatic start-stop device for pressure detection. Background Technology

[0002] Pressure is a crucial parameter in industrial production. For example, pressure exceeding the rated value in a high-pressure vessel is unsafe and must be measured and controlled. In some industrial processes, pressure directly affects product quality and production efficiency. For instance, in the production of synthetic ammonia, nitrogen and hydrogen must not only be synthesized under specific pressures, but the magnitude of the pressure directly impacts the yield.

[0003] A search revealed that patent CN213336605U discloses a pressure detection automatic start / stop device, which has the following shortcomings in use:

[0004] 1. The first and second contact pieces are connected by vertical direct contact. If the pressure is too high, the first and second contact pieces are easily deformed or even damaged, reducing the service life of the device.

[0005] Therefore, we propose a pressure detection automatic start / stop device. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies where the first and second contact pieces are connected in a vertical direct contact manner. If the pressure is too high, the first and second contact pieces are easily deformed or even damaged, reducing the service life of the device. Therefore, this invention proposes a pressure detection automatic start-stop device.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A pressure detection automatic start / stop device, comprising:

[0009] A base plate, on the surface of which a display instrument and two fixed plates are fixedly mounted, and a common lifting seat is slidably connected between the two fixed plates. A pressure-sensitive element is fixedly mounted on the surface of the lifting seat, and a first contact piece is fixedly mounted on the inner walls of both sides of the lifting seat. The first contact piece and the pressure-sensitive element are electrically connected, and a pressure plate is fixedly mounted on the inner wall of the top of the lifting seat.

[0010] It also includes two connecting components disposed on the surface of the base plate. The connecting components include two fixing blocks fixed on the surface of the base plate. The two fixing blocks are slidably connected to the same slide block. One side of the slide block is provided with a guide surface that cooperates with the pressure plate. A rectangular groove is provided on the surface of the slide block. A slider slides through one side of the rectangular groove. A second contact piece is fixed on one side of the slider. The second contact piece is electrically connected to the display instrument.

[0011] A reset mechanism is provided on the surface of the base plate and is used to reset the lifting seat, the sliding seat, and the slider.

[0012] In one possible design, the reset mechanism includes a first spring, a second spring, and a third spring. The first spring is fixed between the fixed plate and the inner wall of the surface and the top of the lifting seat. The second spring is fixed between one side of the fixed block and one side of the inner wall of the slide. The third spring is fixed between the slider and one side of the inner wall of the rectangular groove.

[0013] In one possible design, two limiting grooves are provided on both sides of the lifting seat, and limiting blocks are fixed on both sides of the fixing plate, with the limiting blocks and limiting grooves slidably connected.

[0014] In one possible design, two rubber pads are fixed to the surface of the base plate, with the rubber pads located on the outside of the fixed plate.

[0015] In one possible design, the surface of the base plate has multiple mounting holes.

[0016] In one possible design, the bottom of the pressure plate has a groove, and two symmetrically arranged rollers are rotatably connected in the groove, with the rollers cooperating with the guide surface.

[0017] In this application, it means that when the pressure-sensitive element is subjected to force, the lifting seat descends together with it. The lifting seat causes the first contact piece to descend, and at the same time, the lifting seat causes the pressure plate to descend. The pressure plate causes the roller to descend, and the roller contacts the guide surface, thereby pushing the slide to slide horizontally. The slide causes the second contact piece to contact the first contact piece. At this time, the third spring provides a buffer for the second contact piece to avoid excessive pressure between the first and second contact pieces. The pressure-sensitive element and the display instrument are energized, and the pressure value of the pressure-sensitive element is displayed by the display instrument. When the pressure disappears, the first spring pushes the lifting seat to reset, and the second spring pushes the slide to reset.

[0018] Beneficial effects:

[0019] In this utility model, the pressure detection automatic start-stop device, through the setting of the first contact piece and the second contact piece, connects the first contact piece and the second contact piece in a horizontal contact state during the lifting process of the lifting seat. The pressure between the two is small, avoiding the problem of structural deformation or even damage caused by excessive pressure.

[0020] In this utility model, the pressure detection automatic start-stop device, with its pressure plate, groove, and roller, can reduce wear caused by direct friction between structures and ensure smooth operation of the structure.

[0021] In this invention, during the lifting process of the lifting seat, the first contact piece and the second contact piece are connected in a horizontal contact state, with relatively low pressure between them. This avoids the problem of structural deformation or even damage caused by excessive pressure, reduces wear caused by direct friction between structures, and ensures smooth operation of the structure. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a pressure detection automatic start-stop device proposed in this utility model;

[0023] Figure 2 This is a partially exploded structural diagram from a first-view perspective of a pressure detection automatic start-stop device proposed in this utility model.

[0024] Figure 3 This is a partially exploded structural diagram from a second perspective of the pressure detection automatic start-stop device proposed in this utility model.

[0025] In the diagram: 1. Base plate; 2. Display instrument; 3. Fixing plate; 4. Lifting seat; 5. Pressure sensitive element; 6. Rubber pad; 7. Assembly hole; 8. First spring; 9. Limiting block; 10. Limiting groove; 11. Pressure plate; 12. Roller; 13. First contact piece; 14. Fixing block; 15. Slide seat; 16. Second spring; 17. Guide surface; 18. Rectangular groove; 19. Slider; 20. Second contact piece; 21. Third spring. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Example 1

[0028] Reference Figures 1-3 An automatic start-stop device, comprising:

[0029] A base plate 1 is provided with a display instrument 2 and two fixed plates 3 fixed on its surface. The same lifting seat 4 is slidably connected between the two fixed plates 3. A pressure sensitive element 5 is fixed on the surface of the lifting seat 4. The pressure sensitive element 5 can sense changes in external pressure and convert the signal into an electrical signal. When the pressure sensitive element 5 and the display instrument 2 are energized, the pressure value is displayed by the display instrument 2. First contact pieces 13 are fixed on both inner walls of the lifting seat 4. The first contact pieces 13 are electrically connected to the pressure sensitive element 5. A pressure plate 11 is fixed on the top inner wall of the lifting seat 4.

[0030] It also includes two connecting components disposed on the surface of the base plate 1. The connecting components include two fixing blocks 14 fixed on the surface of the base plate 1. The two fixing blocks 14 are slidably connected to the same slide block 15. A guide surface 17 that cooperates with the pressure plate 11 is opened on one side of the slide block 15. A rectangular groove 18 is opened on the surface of the slide block 15. A slider 19 slides through one side of the rectangular groove 18. A second contact piece 20 is fixed on one side of the slider 19. The second contact piece 20 is electrically connected to the display instrument 2. When the position of the slide block 15 and the slider 19 changes, the first contact piece 13 and the second contact piece 20 contact and are energized to realize automatic start and stop control.

[0031] A reset mechanism is provided on the surface of the base plate 1 for resetting the lifting seat 4, the slide 15, and the slider 19. The reset mechanism includes a first spring 8, a second spring 16, and a third spring 21. The first spring 8 is fixed between the fixed plate 3 and the surface and the top inner wall of the lifting seat 4. The second spring 16 is fixed between one side of the fixed block 14 and one side inner wall of the slide 15. The third spring 21 is fixed between the slider 19 and one side inner wall of the rectangular groove 18. Furthermore, the first spring 8, the second spring 16, and the third spring 21 can be replaced with a spring sheet or other elastic element.

[0032] This application can be used in the field of pressure testing, or in other fields applicable to this application.

[0033] Example 2

[0034] An improved pressure detection automatic start / stop device based on Example 1 is applied to the field of pressure detection.

[0035] In another aspect of this embodiment, two limiting grooves 10 are provided on both sides of the lifting seat 4, and limiting blocks 9 are fixed on both sides of the fixing plate 3. The limiting blocks 9 and the limiting grooves 10 are slidably connected to prevent the lifting seat 4 from shifting or shaking during the sliding process, and to prevent the lifting seat 4 from detaching from the fixing plate 3.

[0036] In another aspect of this embodiment, two rubber pads 6 are fixed on the surface of the base plate 1. The rubber pads 6 are located on the outside of the fixed plate 3 to provide cushioning for the lifting seat 4 and prevent the lifting seat 4 from directly pressing the base plate 1 and leaving indentations.

[0037] In another aspect of this embodiment, the surface of the base plate 1 is provided with a plurality of mounting holes 7 to facilitate fixing the device in the desired position.

[0038] In another aspect of this embodiment, the bottom of the pressure plate 11 is provided with a groove, and two symmetrically arranged rollers 12 are rotatably connected in the groove. The rollers 12 cooperate with the guide surface 17 to reduce the friction between the pressure plate 11 and the guide surface 17, so as to make the sliding smoother.

[0039] However, as is well known to those skilled in the art, the working principle and wiring method of the pressure sensitive element 5 and the display instrument 2 are commonplace and are all conventional means or common knowledge. They will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A pressure detecting automatic start-stop device characterized by comprising: The utility model relates to a display instrument with reset mechanism, including: The surface of bottom plate (1) is fixed with display instrument (2) and two fixed plate (3), and the same lifting seat (4) is slidably connected between two fixed plate (3), the surface of lifting seat (4) is fixed with pressure sensitive element (5), and the inner wall of both sides of lifting seat (4) is fixed with first contact piece (13), and first contact piece (13) is electrically connected with pressure sensitive element (5), and the inner wall of the top of lifting seat (4) is fixed with pressing plate (11); Still including two connecting assemblies arranged on the surface of bottom plate (1), the connecting assembly includes two fixed blocks (14) fixed on the surface of bottom plate (1), and the same sliding seat (15) is slidably connected between two fixed blocks (14), and the side of sliding seat (15) is provided with the guide surface (17) matched with pressing plate (11), the surface of sliding seat (15) is provided with rectangular groove (18), and the sliding block (19) is slidably penetrated in one side of rectangular groove (18), and the side of sliding block (19) is fixed with second contact piece (20), and second contact piece (20) is electrically connected with display instrument (2); Reset mechanism, the reset mechanism is arranged on the surface of bottom plate (1), is used for the reset of lifting seat (4), sliding seat (15) and sliding block (19).

2. The pressure detecting automatic stop-start device according to claim 1, characterized by The reset mechanism includes first spring (8), second spring (16) and third spring (21), the first spring (8) is fixed between fixed plate (3) and the surface and the top inner wall of lifting seat (4), the second spring (16) is fixed between the side of fixed block (14) and the side inner wall of sliding seat (15), and the third spring (21) is fixed between sliding block (19) and the side inner wall of rectangular groove (18).

3. The pressure detecting automatic stop-start device according to claim 2, characterized by The both sides of lifting seat (4) are provided with two limiting grooves (10), and the both sides of fixed plate (3) are fixed with limiting block (9), and limiting block (9) is slidably connected with limiting groove (10).

4. The pressure detecting automatic stop-start device according to claim 3, characterized by The surface of bottom plate (1) is fixed with two rubber pads (6), and the rubber pad (6) is located on the outside of fixed plate (3).

5. The pressure detecting automatic stop-start device according to claim 4, characterized by The surface of bottom plate (1) is provided with a plurality of assembly holes (7).

6. The pressure detecting automatic stop-and-start device according to claim 5, wherein The bottom of pressing plate (11) is provided with a groove, two symmetrical arranged rolling shafts (12) are rotatably connected in the groove, and the rolling shaft (12) is matched with guide surface (17).

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