A high protection differential pressure controller

Abstract

This utility model relates to the field of differential pressure controller technology, and in particular to a highly protected micro differential pressure controller, comprising a micro differential pressure controller body. The top and bottom of the micro differential pressure controller body are respectively provided with a low-pressure interface and a high-pressure interface. Assembly blocks are provided on the micro differential pressure controller body on one side of the low-pressure interface and the high-pressure interface. A slot is opened in the assembly block, and a drive rod is provided in the slot. The drive rod located in the slot has symmetrical positive and negative threads. Movable plates are threaded onto both the positive and negative threads. A connecting plate is provided on one side of the movable plate. An arc-shaped plate is provided at the end of the connecting plate away from the movable plate. A baffle is connected to the inner wall of the arc-shaped plate. When the micro differential pressure controller is not in use, the two baffles and two cover plates enclose the low-pressure interface or the high-pressure interface, thereby protecting the low-pressure interface or the high-pressure interface and preventing impurities and dust from entering the interface of the micro differential pressure controller during storage.

Description

Technical Field

[0001] This utility model relates to the field of differential pressure controller technology, and in particular to a highly protected micro differential pressure controller. Background Technology

[0002] A differential pressure controller is a device used to control differential pressure. This device can employ various sensors, such as bellows-type sensors and diaphragm sensors, and can be used with media such as gases and liquids. The controller features adjustable setpoints, high sensitivity, low control values, small switching error, and an ultra-compact design.

[0003] When using a differential pressure controller, it is essential to ensure that no impurities are present inside the controller. However, when storing existing differential pressure controllers, impurities and dust can easily enter the controller's interface, leading to inaccurate detection and affecting the normal operation of the controller. Utility Model Content

[0004] The purpose of this invention is to provide a highly protected differential pressure controller for existing devices, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A highly protected differential pressure controller includes a differential pressure controller body. The top and bottom of the differential pressure controller body are respectively provided with a low-pressure interface and a high-pressure interface. An assembly block is provided on the differential pressure controller body on the side of the low-pressure interface and the high-pressure interface. A slot is opened in the assembly block. A drive rod is provided in the slot. The drive rod located in the slot is symmetrically provided with positive threads and negative threads. A movable plate is threaded to both the positive threads and the negative threads. A connecting plate is provided on the side of the movable plate near the low-pressure interface or the high-pressure interface. An arc-shaped plate is provided on the end of the connecting plate away from the movable plate. A baffle is connected to the inner side wall of the arc-shaped plate.

[0007] As a further embodiment of this utility model, the top of the baffle is provided with a cover plate.

[0008] As a further embodiment of this utility model, one end of the drive rod is rotatably connected to a movable base disposed on the inner sidewall of the slot, and the other end of the drive rod extends to the outside of the assembly block and is provided with a drive handle.

[0009] As a further embodiment of this utility model, the assembly block is provided with a limiting groove that allows the two connecting plates to move, and the limiting groove is connected to the empty groove.

[0010] As a further embodiment of this utility model, the arc-shaped plate is provided with a guide plate at one end away from the connecting plate. A guide hole is provided through the guide plate, and a guide rod is slidably connected between two adjacent guide holes. The guide rod is provided with upright plates located outside the guide plate at both ends, and the upright plates are fixedly connected to the body of the differential pressure controller.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] When not in use, the two baffles and two covers enclose the low-pressure or high-pressure interface of the differential pressure controller, thus protecting it and preventing impurities and dust from entering the interface during storage. This ensures accurate detection and normal operation of the differential pressure controller. When in use, the two baffles are positioned apart, fully exposing the low-pressure or high-pressure interface for easy detection. The operation is simple and convenient, improving the practicality of the device. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of another state of the present invention;

[0015] Figure 3 This is a cross-sectional view of the assembly block of this utility model;

[0016] In the diagram: 1. Differential pressure controller body; 101. Low-pressure interface; 102. High-pressure interface; 2. Assembly block; 201. Empty slot; 202. Drive rod; 203. Positive thread; 204. Negative thread; 205. Movable plate; 206. Connecting plate; 207. Arc plate; 208. Baffle; 209. Cover plate; 210. Movable base; 211. Drive handle; 212. Limiting groove; 213. Guide plate; 214. Guide hole; 215. Guide rod; 216. Vertical plate. Detailed Implementation

[0017] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of the present invention.

[0018] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] Example

[0020] refer to Figures 1-3 A high-protection differential pressure controller includes a differential pressure controller body 1. The top and bottom of the differential pressure controller body 1 are respectively provided with a low-pressure interface 101 and a high-pressure interface 102. Assembly blocks 2 are provided on one side of the differential pressure controller body 1, and slots 201 are formed within the assembly blocks 2. Drive rods 202 are provided within the slots 201. The drive rods 202 within the slots 201 are symmetrically provided with positive threads 203 and negative threads 204. Movable plates are threaded onto both the positive threads 203 and the negative threads 204. 205. A connecting plate 206 is provided on the side of the movable plate 205 near the low-pressure interface 101 or the high-pressure interface 102. An arc-shaped plate 207 is provided at the end of the connecting plate 206 away from the movable plate 205. A baffle 208 is connected to the inner wall of the arc-shaped plate 207. A cover plate 209 is provided on the top of the baffle 208. The low-pressure interface 101 or the high-pressure interface 102 is wrapped by the two baffles 208 and the two cover plates 209, thereby protecting the low-pressure interface 101 or the high-pressure interface 102 and preventing impurities and dust from entering the interface of the differential pressure controller when it is stored.

[0021] Furthermore, one end of the drive rod 202 is rotatably connected to the movable base 210 disposed on the inner side wall of the slot 201, and the other end of the drive rod 202 extends to the outside of the assembly block 2 and is provided with a drive handle 211. The drive handle 211 facilitates the operator to drive the drive rod 202 to move the movable plate 205.

[0022] Furthermore, the assembly block 2 is provided with a limiting groove 212 that allows the two connecting plates 206 to move. The limiting groove 212 is connected to the empty groove 201. By setting the limiting groove 212, the displacement of the connecting plate 206 can be limited.

[0023] Furthermore, the arc-shaped plate 207 is provided with a guide plate 213 at one end away from the connecting plate 206. A guide hole 214 is provided through the guide plate 213. A guide rod 215 is slidably connected between two adjacent guide holes 214. The guide rod 215 is provided with upright plates 216 located outside the guide plate 213 at both ends. The upright plates 216 are fixedly connected to the micro differential pressure controller body 1. The arrangement of the guide plate 213 and the guide rod 215 improves the stability of the baffle 208 displacement.

[0024] refer to Figure 1 When the differential pressure controller is not in use, rotating the drive handle 211 will cause the drive rod 202 to rotate. The two movable plates 205 on the drive rod 202 will move towards each other and cause the two baffles 208 to come closer together. The two baffles 208 and the two cover plates 209 will cover the low-pressure interface 101 or the high-pressure interface 102, thereby protecting the low-pressure interface 101 or the high-pressure interface 102 and preventing impurities and dust from entering the interface of the differential pressure controller when it is stored, ensuring the accuracy of the detection and guaranteeing the normal operation of the differential pressure controller.

[0025] refer to Figure 2 When the differential pressure controller is in use, rotating the drive handle 211 will drive the drive rod 202 to rotate. The two movable plates 205 on the drive rod 202 will move away from each other and drive the two baffles 208 to move away from each other, so that the low-pressure interface 101 or the high-pressure interface 102 is fully exposed, which is convenient for testing.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A high-protection differential pressure controller, comprising a differential pressure controller body (1), characterized in that: The top and bottom of the differential pressure controller body (1) are respectively provided with a low-pressure interface (101) and a high-pressure interface (102). On the side of the differential pressure controller body (1) of the low-pressure interface (101) and the high-pressure interface (102), there is an assembly block (2). A slot (201) is opened in the assembly block (2). A drive rod (202) is provided in the slot (201). Symmetrical openings are made on the drive rod (202) located in the slot (201). There are positive threads (203) and negative threads (204). Both positive threads (203) and negative threads (204) are threaded with movable plates (205). A connecting plate (206) is provided on the side of the movable plate (205) near the low-pressure interface (101) or the high-pressure interface (102). An arc-shaped plate (207) is provided on the end of the connecting plate (206) away from the movable plate (205). A baffle (208) is connected to the inner wall of the arc-shaped plate (207).

2. The high-protection differential pressure controller according to claim 1, characterized in that: The baffle (208) is provided with a cover plate (209) on top.

3. The high-protection differential pressure controller according to claim 1, characterized in that: One end of the drive rod (202) is rotatably connected to the movable base (210) set on the inner side wall of the slot (201), and the other end of the drive rod (202) extends to the outside of the assembly block (2) and is provided with a drive handle (211).

4. The high-protection differential pressure controller according to claim 1, characterized in that: The assembly block (2) is provided with a limiting groove (212) that allows the two connecting plates (206) to move. The limiting groove (212) is connected to the empty groove (201).

5. A high-protection differential pressure controller according to claim 1, characterized in that: The arc plate (207) has a guide plate (213) at one end away from the connecting plate (206). The guide plate (213) has a through hole (214). A guide rod (215) is slidably connected between two adjacent guide holes (214). The guide rod (215) has a vertical plate (216) at both ends located outside the guide plate (213). The vertical plate (216) is fixedly connected to the micro differential pressure controller body (1).

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