Displacement pressure switch
By designing the movable plate and shifting mechanism in the pressure switch, flexible position adjustment of the pressure switch is achieved, solving the problem that traditional pressure switches cannot adapt to the needs of different scenarios, ensuring the disconnection control and stable system operation when pressure changes.
Patent Information
- Application Number
- CN202420899119.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-28
- Publication Date
- 2024-12-27
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Traditional pressure switches cannot flexibly adjust their position according to actual needs and cannot adapt to the usage needs in different scenarios.
A displaceable pressure switch is designed. By setting a movable piece and a shifting mechanism in the flange ring, including a large rotary ring and a small rotary ring, and using a tightening screw and a return spring, the flexible position of the micro switch is achieved. Adjust to avoid peripheral pipelines and equipment.
It realizes flexible position adjustment of the micro switch, ensuring off-open control when the pressure is too high, and automatically reset after the pressure is restored, ensuring the normal operation of the system function.
Smart Images
Figure CN222260896U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pressure switches, in particular to a displaceable pressure switch. Background Art
[0002] Traditional pressure switches are often set in fixed positions and cannot be flexibly adjusted according to actual needs. In actual applications, the position of the pressure switch may need to be adjusted to avoid changes in surrounding pipelines, equipment layout, and working environment. Therefore, it is of great practical significance to develop a shiftable pressure switch to meet the needs of use in different scenarios. Summary of the invention
[0003] The purpose of the utility model is to provide a displaceable pressure switch, which can be flexibly displaced through structural design to meet the needs of various application scenarios.
[0004] In order to solve the above technical problems, the technical solutions adopted by the utility model are as follows:
[0005] A displaceable pressure switch comprises a flange ring, a movable sheet and a displacement mechanism are arranged inside the flange ring, a micro switch is arranged on the displacement mechanism, a contact of the micro switch faces the movable sheet, and a reset spring is arranged between the movable sheet and the flange ring;
[0006] The shift mechanism comprises a large rotating ring and a small rotating ring, the large rotating ring can rotate relative to the flange ring, the small rotating ring can translate and rotate relative to the large rotating ring, and the micro switch is fixed to the small rotating ring.
[0007] Furthermore, the outer periphery of the large swivel is arranged in a groove opened on the inner wall of the flange ring, a long strip slide groove is arranged in the large swivel, the small swivel is located in the long strip slide groove, and both the large swivel and the small swivel are provided with fixing screws.
[0008] Furthermore, the set screw on the large rotating ring can be rotated to change whether it contacts the flange ring, and the set screw on the small rotating ring can be rotated to change whether it contacts the large rotating ring.
[0009] Furthermore, the movable sheet and the return spring are both arranged in a groove provided on the inner wall of the flange ring, and the return spring presses the movable sheet in a direction away from the micro switch.
[0010] Furthermore, the central axis of the movable sheet and the flange ring coincide with each other, and the movable sheet can move in the groove along the axial direction of the flange ring.
[0011] Furthermore, the contact includes a ball seat, in which a ball is arranged. When the movable sheet approaches the micro switch, the movable sheet contacts the ball.
[0012] Furthermore, the number of the return springs is ≥3 and they are evenly distributed around the center axis of the flange ring.
[0013] Furthermore, the flange ring is provided with ≥4 bolt holes, and the bolt holes surround the periphery of the movable sheet and the shifting mechanism.
[0014] The beneficial effects of adopting the technical solution of the utility model are:
[0015] The utility model provides a displaceable pressure switch. By setting a displacement mechanism, the position of the micro switch can be flexibly adjusted to avoid surrounding pipelines, equipment, etc.; when the pressure of the measured medium is too high, the reset spring is compressed, the movable piece moves up, and the contact of the micro switch is touched, thereby realizing the on-off control of the circuit; when the pressure returns to a safe range, the reset spring resets the movable piece, and the micro switch returns to the previous on-off state of the circuit, and the function of the entire system is not affected after the micro switch is displaced. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0018] Figure 2 for Figure 1 The enlarged schematic diagram at A in the middle;
[0019] Figure 3 for Figure 1 The enlarged schematic diagram of point B in the middle;
[0020] Figure 4 for Figure 1 Schematic diagram of the CC section;
[0021] Figure 5 for Figure 4 The enlarged schematic diagram at D in the middle;
[0022] Figure 6 It is a structural schematic diagram of the shifting mechanism in the utility model;
[0023] Figure 7 It is a structural schematic diagram of the micro switch in the utility model.
[0024] Markings in the figure: 1, flange ring; 1a, bolt hole; 2, movable piece; 3, shift mechanism; 3a, large swivel; 3b, small swivel; 3c, set screw; 4, micro switch; 4a, contact; 4a-1, ball seat; 4a-2, ball; 5, reset spring. DETAILED DESCRIPTION
[0025] The utility model is further described in detail below in conjunction with the accompanying drawings.
[0026] See also Figure 1 to Figure 7 A shiftable pressure switch comprises a flange ring 1, wherein a movable sheet 2 and a shift mechanism 3 are arranged in the flange ring 1, wherein the central axes of the movable sheet 2 and the flange ring 1 coincide with each other, wherein a side plane of the movable sheet 2 contacts with a measured medium, and under the action of pressure, the movable sheet 2 can move in the groove along the axial direction of the flange ring 1, and a micro switch 4 is arranged on the shift mechanism 3, wherein a contact 4a of the micro switch 4 faces the movable sheet 2, and the contact 4a comprises a ball seat 4a-1, wherein a ball 4a-2 is arranged in the ball seat 4a-1, and when the movable sheet 2 approaches the micro switch 4, the movable sheet 2 contacts with the ball 4a-2, and a reset spring 5 is arranged between the movable sheet 2 and the flange ring 1, and the movable sheet 2 and the reset spring 5 are both arranged in a groove opened on the inner wall of the flange ring 1, and the reset spring 5 presses the movable sheet 2 in a direction away from the micro switch 4, and the groove opened on the inner wall of the flange ring 1 limits the moving space of the movable sheet 2, as shown in the specific example Figure 4 , Figure 5 As shown, if the flange ring 1 is in a horizontal position, the movable piece 2 is located under the reset spring 5, the reset spring 5 is located under the shifting mechanism 3, and the bottom of the movable piece 2 is in contact with the measured medium. When the pressure is too high, the reset spring 5 is compressed, the movable piece 2 moves up, and touches the contact 4a of the micro switch 4, thereby realizing the on-off control of the circuit. When the pressure returns to a safe range, the reset spring 5 will reset the movable piece 2 to the lowest position, and the micro switch 4 will restore the previous circuit on-off state; the number of reset springs 5 is ≥3, which are evenly distributed around the central axis of the flange ring 1, and the force applied to the movable piece 2 is uniform; the ball 4a-2 reduces the friction between the micro switch 4 and the movable piece 2 when it shifts.
[0027] Specifically, the shift mechanism 3 includes a large swivel ring 3a and a small swivel ring 3b. The large swivel ring 3a can rotate relative to the flange ring 1, and the small swivel ring 3b can translate and rotate relative to the large swivel ring 3a. The micro switch 4 is fixed to the small swivel ring 3b. From above, the micro switch 4 can move and rotate based on the flange ring 1, so as to realize flexible adjustment of the position of the pressure switch as needed and avoid surrounding pipelines, equipment, etc.
[0028] The outer periphery of the large swivel ring 3a is arranged in a groove opened on the inner wall of the flange ring 1. A long strip slide groove is arranged in the large swivel ring 3a, and the small swivel ring 3b is located in the long strip slide groove. In order to achieve position fixation after displacement adjustment, a fixing screw 3c is arranged on the large swivel ring 3a and the small swivel ring 3b. The fixing screw 3c on the large swivel ring 3a can change whether it is in contact with the flange ring 1 by rotation, and the fixing screw 3c on the small swivel ring 3b can change whether it is in contact with the large swivel ring 3a by rotation. When the fixing screw 3c on the large swivel ring 3a contacts the flange ring 1, the fixing of the large swivel ring 3a and the flange ring 1 can be achieved. When the fixing screw 3c on the small swivel ring 3b contacts the large swivel ring 3a, the fixing of the small swivel ring 3b and the large swivel ring 3a can be achieved.
[0029] In addition, the flange ring 1 is provided with ≥4 bolt holes 1a, which surround the outer periphery of the movable piece 2 and the shifting mechanism 3. The flange ring 1 can be installed on the pipeline or container where the measured medium is located through the bolt holes 1a. The movable piece 2 will move under the action of pressure, thereby controlling the connection or interruption of the micro switch 4 and transmitting the signal to the control system. When the pressure returns to a safe range, the reset spring 5 will reset the movable piece 2 to ensure the normal operation of the system and prevent malfunctions. The displacement of the micro switch 4 does not affect the function of the entire system.
[0030] The above embodiments of the present invention are for inspiration. Through the above description, relevant technicians can make various changes and modifications without departing from the technical concept of the present invention. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.
Claims
1. A displaceable pressure switch, characterized in that: The invention comprises a flange ring (1), wherein a movable sheet (2) and a shift mechanism (3) are arranged inside the flange ring (1), a micro switch (4) is arranged on the shift mechanism (3), a contact (4a) of the micro switch (4) faces the movable sheet (2), and a return spring (5) is arranged between the movable sheet (2) and the flange ring (1); The shift mechanism (3) comprises a large rotating ring (3a) and a small rotating ring (3b); the large rotating ring (3a) can rotate relative to the flange ring (1); the small rotating ring (3b) can translate and rotate relative to the large rotating ring (3a); and the micro switch (4) is fixed to the small rotating ring (3b).
2. A displaceable pressure switch according to claim 1, characterized in that: The outer periphery of the large rotating ring (3a) is arranged in a groove opened on the inner wall of the flange ring (1), and a long strip-shaped sliding groove is arranged in the large rotating ring (3a). The small rotating ring (3b) is located in the long strip-shaped sliding groove. Both the large rotating ring (3a) and the small rotating ring (3b) are provided with fixing screws (3c).
3. A displaceable pressure switch according to claim 2, characterized in that: The set screw (3c) on the large rotating ring (3a) can be rotated to change whether it is in contact with the flange ring (1), and the set screw (3c) on the small rotating ring (3b) can be rotated to change whether it is in contact with the large rotating ring (3a).
4. A displaceable pressure switch according to claim 1, characterized in that: The movable sheet (2) and the return spring (5) are both arranged in a groove provided on the inner wall of the flange ring (1), and the return spring (5) presses the movable sheet (2) in a direction away from the micro switch (4).
5. A displaceable pressure switch according to claim 4, characterized in that: The central axes of the movable sheet (2) and the flange ring (1) coincide with each other, and the movable sheet (2) can move in the groove along the axial direction of the flange ring (1).
6. A displaceable pressure switch according to claim 1, characterized in that: The contact (4a) comprises a ball seat (4a-1), a ball (4a-2) is arranged in the ball seat (4a-1), and when the movable sheet (2) approaches the micro switch (4), the movable sheet (2) contacts the ball (4a-2).
7. A displaceable pressure switch according to claim 5, characterized in that: The number of the return springs (5) is ≥3 and they are evenly distributed around the central axis of the flange ring (1).
8. The displaceable pressure switch according to claim 2, characterized in that: The flange ring (1) is provided with ≥4 bolt holes (1a), and the bolt holes (1a) surround the periphery of the movable plate (2) and the displacement mechanism (3).