Pressure transmitter
By setting movable pins and related devices at the detection port of the pressure transmitter, the problem of port blockage caused by the viscosity of liquid or the mixture is solved, effectively cleaning and preventing the detection port, ensuring sensing accuracy and stability.
Patent Information
- Application Number
- CN202421044595.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-05-14
AI Technical Summary
Existing pressure transmitters are soaked in liquid for a long time at the port where the pressure is detected, especially when the liquid is too viscous or contains a mixture, which can easily lead to port clogging.
A pressure transmitter is designed. By setting a movable push rod at the detection port, combining an electric push rod, an elastic device and a sealing device, the size of the detection port is adjusted and cleaned, avoiding foreign objects entering and cleaning the remaining residues of the inner wall. .
It effectively avoids clogging of the detection port, ensures the accuracy and stability of pressure sensing, and reduces substance residues on the inner wall of the detection port, and extends the service life of the equipment.
Smart Images
Figure CN222439027U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pressure transmitters, in particular to a pressure transmitter. Background Art
[0002] A pressure transmitter is a device used to measure the pressure of liquid or gas. It converts the pressure signal into an electrical signal for transmission, processing and control. A pressure transmitter usually consists of a pressure sensing element, a signal processing circuit and an output interface. The pressure sensing element can be a sensor of different principles such as piezoresistive, capacitive, and inductive. The appropriate sensing element is selected according to different application requirements. The signal processing circuit is responsible for converting the pressure signal detected by the sensing element into a standard electrical signal. The output interface transmits the electrical signal to the control system for further processing and control. Pressure transmitters are widely used in industrial automation, process control, environmental monitoring and other fields. It can monitor and measure the pressure changes of liquids or gases in real time and convert them into readable electrical signals, which is convenient for operators to monitor and control. By using pressure transmitters, production efficiency can be improved, resource waste can be reduced, and the safety and stability of the system can be ensured.
[0003] In the prior art, in actual use, the port for detecting pressure of the pressure transmitter is immersed in various liquids for a long time. If the liquid is too viscous or contains other mixtures, it is easy to cause port blockage. Based on this problem, we propose a pressure transmitter. Utility Model Content
[0004] The purpose of the utility model is to provide a pressure transmitter to solve the problems existing in the prior art proposed by the above background technology.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A pressure transmitter comprises a pressure transmitter body, a detection end rod is arranged at the side wall of the pressure transmitter body, a detection port is penetrated at the lower end of the detection end rod, a device frame is fixedly connected to the side wall of the detection end rod, a push rod is arranged at the detection port, the push rod and the device frame are connected by a moving device, a slide groove is penetrated at the upper end of the push rod, a slide rod is arranged in the slide groove, the slide rod is connected to the slide groove by an elastic device, and a blocking device is fixedly connected to the upper end of the slide rod.
[0007] Preferably, the moving device comprises an electric push rod fixedly connected to the side wall of the device frame, a cross bar is fixedly connected to the lower end of the electric push rod, and the top rod at the corresponding position is fixedly connected to the other end side wall of the cross bar.
[0008] Preferably, the elastic device comprises a spring fixedly connected to the lower end of the slide rod, the spring is elastically connected to the inner bottom of the slide groove, and the side wall of the slide rod abuts against the side wall of the slide groove.
[0009] Preferably, the blocking device comprises a top pad fixedly connected to the upper end of the sliding rod, and the top pad is composed of two circular pads, and the two circular pads are arranged up and down.
[0010] Preferably, a brush is provided on the side wall of the push rod.
[0011] Preferably, the diameter of the top pad is smaller than the diameter of the top rod.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] In the utility model, a movable device, an elastic device and a blocking device are arranged to cooperate with each other, and a push rod that can be moved at any time is arranged at the detection port. The push rod can adjust the size of the detection port according to the distance between the push rod and the detection port, so as to prevent some large mixed substances from entering the detection port and prevent blockage. When the inner wall of the detection port needs to be cleaned, the push rod and the sliding rod can be inserted into the detection port by an electric push rod, and the sliding rod can cooperate with the spring and the top pad to block the internal diameter of the detection port, and the push rod can cooperate with the brush at the side wall to brush the inner wall of the detection port, so as to prevent material residue, and the detection port can also be blocked by the push rod when the detection port is not in use. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a structural schematic diagram of a pressure transmitter proposed by the utility model;
[0015] Figure 2 This is a schematic diagram of the structure of a pressure transmitter device frame and related components proposed by the utility model;
[0016] Figure 3 The utility model provides a schematic diagram of the push rod structure of the pressure transmitter.
[0017] In the figure: 1 pressure transmitter body, 2 device frame, 3 detection end rod, 4 electric push rod, 5 push rod, 6 cross rod, 7 push pad, 8 round pad, 9 slide rod, 10 spring. DETAILED DESCRIPTION
[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0019] Reference Figure 1-3A pressure transmitter comprises a pressure transmitter body 1, a detection end rod 3 is arranged at the side wall of the pressure transmitter body 1, a detection port is penetrated at the lower end of the detection end rod 3, a device frame 2 is fixedly connected to the side wall of the detection end rod 3, a push rod 5 is arranged at the detection port, the push rod 5 is connected to the device frame 2 through a moving device, the moving device comprises an electric push rod 4 fixedly connected to the side wall of the device frame 2, a cross bar 6 is fixedly connected at the lower end of the electric push rod 4, and the push rod 5 at the corresponding position is fixedly connected to the side wall of the other end of the cross bar 6.
[0020] Among them, a brush is provided on the side wall of the push rod 5, a slide groove is penetrated at the upper end of the push rod 5, a slide rod 9 is provided in the slide groove, the slide rod 9 is connected to the slide groove through an elastic device, the elastic device includes a spring 10 fixedly connected to the lower end of the slide rod 9, the spring 10 is elastically connected to the inner bottom of the slide groove, and the side wall of the slide rod 9 is against the side wall of the slide groove.
[0021] Specifically, a blocking device is fixedly connected to the upper end of the slide rod 9 , and the blocking device includes a top pad 7 fixedly connected to the upper end of the slide rod 9 , and the top pad 7 is composed of two circular pads 8 , and the two circular pads 8 are arranged up and down.
[0022] It is worth mentioning that the diameter of the top pad 7 is smaller than the diameter of the top rod 5. When the top pad 7 enters the detection port, it will not drive the residue on the inner wall into the deep part of the detection port.
[0023] In the utility model, after the pressure transmitter body 1 is normally installed and connected, the position of the lower push rod 5 and the cross bar 6 can be changed by a single electric push rod 4. When the detection port needs normal liquid inlet detection, the push rod 5 can be placed close to the detection port but not completely blocked. The entry of foreign matter can be reduced without affecting the liquid inlet. When the inner wall of the detection port needs to be cleaned, the push rod 5 can be allowed to enter the detection port. The push rod 5 can cooperate with the brush on its side wall to flush the inner wall of the detection port. At the same time, the top pad 7 on the corresponding sliding rod 9 will enter the depth of the detection port to prevent foreign matter from entering the depth of the detection port. The arranged spring 10 can play a role in resetting and avoiding excessive extrusion, which causes the top pad 7 to be unable to move out.
[0024] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A pressure transmitter, comprising a pressure transmitter body (1), characterized in that: A detection end rod (3) is provided at the side wall of the pressure transmitter body (1), a detection port is provided at the lower end of the detection end rod (3), a device frame (2) is fixedly connected to the side wall of the detection end rod (3), a push rod (5) is provided at the detection port, the push rod (5) and the device frame (2) are connected via a moving device, a slide groove is provided at the upper end of the push rod (5), a slide rod (9) is provided in the slide groove, the slide rod (9) is connected to the slide groove via an elastic device, and a blocking device is fixedly connected to the upper end of the slide rod (9).
2. A pressure transmitter according to claim 1, characterized in that: The moving device comprises an electric push rod (4) fixedly connected to a side wall of a device frame (2), a cross bar (6) fixedly connected at the lower end of the electric push rod (4), and the top rod (5) at a corresponding position is fixedly connected to the other end side wall of the cross bar (6).
3. A pressure transmitter according to claim 1, characterized in that: The elastic device comprises a spring (10) fixedly connected to the lower end of the slide rod (9), the spring (10) being elastically connected to the inner bottom of the slide groove, and the side wall of the slide rod (9) abuts against the side wall of the slide groove.
4. A pressure transmitter according to claim 1, characterized in that: The blocking device comprises a top pad (7) fixedly connected to the upper end of the sliding rod (9), wherein the top pad (7) is composed of two circular pads (8), and the two circular pads (8) are arranged one above the other.
5. A pressure transmitter according to claim 1, characterized in that: The side wall of the push rod (5) is provided with a brush.
6. A pressure transmitter according to claim 4, characterized in that: The diameter of the top pad (7) is smaller than the diameter of the top rod (5).