A pressure transmitter that can be quickly assembled
By using internal and external threaded connections and a multi-layer sealing ring structure, the problem of poor sealing during the assembly of pressure transmitters is solved, achieving a reliable sealing effect in harsh environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANZIYI (SHANDONG) AUTOMATION INSTR CO LTD
- Filing Date
- 2025-07-14
- Publication Date
- 2026-07-03
AI Technical Summary
Existing pressure transmitters are prone to poor sealing during assembly, especially in harsh environments such as high temperature, low temperature, corrosion, vibration, and impact, leading to frequent leakage.
It adopts an internal and external threaded connection structure, combined with multiple sealing rings and sealant, to ensure rapid assembly while improving sealing performance.
This improved sealing performance in harsh environments, ensuring the reliability and stability of the pressure transmitter.
Smart Images

Figure CN224456051U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pressure transmitter technology, specifically to a pressure transmitter that can be quickly assembled. Background Technology
[0002] A pressure transmitter is an instrument that converts received pressure signals from gases, liquids, etc., into a standardized output signal that can be transmitted. The output signal and pressure are usually linearly related. Pressure transmitters are in direct contact with the measured medium and are widely used in various industrial automation environments, often operating in environments with high temperature, low temperature, corrosion, vibration, and shock.
[0003] In the assembly process of pressure transmitters, the piping is often prepared in advance and then quickly installed by thread. However, in actual use, improper installation often leads to poor sealing and leakage. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a pressure transmitter with good sealing effect and quick assembly, which addresses the shortcomings mentioned in the background art.
[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a pressure transmitter that can be quickly assembled, including an installation pipe and a pressure transmitter, wherein the installation pipe and the pressure transmitter are respectively provided with a first installation end and a second installation end that cooperate with each other, both ends of the installation pipe are provided with installation flanges, and the bottom of the second installation end is provided with a sensor module, the first installation end includes a connecting screw tube, the connecting screw tube is provided with a first connecting internal thread, and the second installation end includes a connecting screw rod that cooperates with the connecting screw tube, the connecting screw rod is provided with a second connecting internal thread that cooperates with the first connecting internal thread;
[0006] The second mounting end includes a connecting sleeve disposed on the outside of the connecting screw, the inner side of the connecting sleeve is provided with a second connecting internal thread, and the outer side of the connecting screw is provided with a first connecting external thread that mates with the second connecting internal thread.
[0007] Furthermore, the bottom of the connecting screw tube is provided with a sealing ring structure, the top of the sealing ring structure is provided with a first sealing ring, and the bottom of the connecting screw is provided with a compaction end that matches the sealing ring block and the first sealing ring, which facilitates auxiliary compaction and sealing operations.
[0008] Furthermore, the top of the connecting screw tube is provided with a sealing ring groove, and a sealing ring block that matches the sealing ring groove is provided between the connecting screw tube and the connecting outer sleeve, which facilitates further auxiliary sealing operations.
[0009] Furthermore, a second sealing ring is provided at the bottom of the sealing ring groove to facilitate further auxiliary sealing operations.
[0010] Furthermore, a third sealing ring is provided at the top of the connecting screw tube outside the sealing ring groove to facilitate further auxiliary sealing operations.
[0011] Furthermore, the sensor module is threadedly connected to the compaction end, and the connecting screw has a wiring hole that matches the sensor module. The wiring hole is filled with sealant to facilitate the sealing of the sensor module.
[0012] The advantages of this quick-assembly pressure transmitter compared to existing technologies are as follows: This invention, through its internal and external threaded connection, ensures both quick assembly and sealing. Furthermore, through other auxiliary sealing structures, it further guarantees the sealing of the equipment connection. Attached Figure Description
[0013] Figure 1 This is a structural diagram of a pressure transmitter that can be quickly assembled.
[0014] Figure 2 This is an exploded structural diagram of a pressure transmitter that can be quickly assembled.
[0015] Figure 3 This is a schematic diagram of the installation pipeline structure for a pressure transmitter that can be quickly assembled.
[0016] Figure 4 This is a cross-sectional structural diagram of a pressure transmitter that can be quickly assembled.
[0017] As shown in the figure: 1. Installation pipe; 2. Pressure transmitter; 3. Installation flange; 4. First mounting end; 5. Second mounting end; 6. Connecting screw; 7. First connecting internal thread; 8. Connecting screw; 9. Compacting end; 10. First connecting external thread; 11. Second connecting external thread; 12. Connecting outer sleeve; 13. Second connecting internal thread; 14. Sealing ring structure; 15. First sealing ring; 16. Sealing ring groove; 17. Second sealing ring; 18. Sealing ring block; 19. Third sealing ring; 20. Sensor module; 21. Wiring hole; 22. Sealant. Detailed Implementation
[0018] The present invention will now be described in further detail with reference to the accompanying drawings.
[0019] Combined with appendix Figure 1-4A pressure transmitter capable of rapid assembly includes an installation pipe 1 and a pressure transmitter 2. The installation pipe 1 and the pressure transmitter 2 are respectively provided with a first mounting end 4 and a second mounting end 5 that cooperate with each other. Both ends of the installation pipe 1 are provided with mounting flanges 3, allowing the installation pipe 1 to be installed on a conventional pipeline. The bottom of the second mounting end 5 is provided with a sensor module 20, which senses the pressure within the pipeline and converts it into an electrical signal for transmission and display to the main body of the pressure transmitter 2. This is a principle in the art and will not be elaborated further. The first mounting end 4 includes a connecting threaded tube 6, which has a first internal connecting thread 7. The second mounting end... 5 includes a connecting screw 8 that mates with the connecting solenoid 6. The connecting screw 8 has a first connecting external thread 10 that mates with the first connecting internal thread 7. The above structure is a common assembled pressure transmitter structure, so it will not be described in detail. The second mounting end 5 includes a connecting sleeve 12 located outside the connecting screw 8. The inner side of the connecting sleeve 12 has a second connecting internal thread 13, and the outer side of the connecting solenoid 6 has a second connecting external thread 11 that mates with the second connecting internal thread 13. By connecting the connecting sleeve 12 and the second connecting external thread 11 of the connecting solenoid 6, the internal and external threads are connected and sealed, which can ensure that the installation pipe 1 and the pressure transmitter 2 can be quickly assembled while ensuring a seal.
[0020] The connecting screw tube 6 has a sealing ring structure 14 at its bottom and a first sealing ring 15 at its top. The connecting screw 8 has a compaction end 9 below it that matches the sealing ring structure 14 and the first sealing ring 15. The diameter of the compaction end 9 is slightly smaller than that of the connecting screw 8. As the assembly progresses, the connecting screw 8 and the compaction end 9 are gradually pressed down, and the compaction end 9 will compact the first sealing ring 15, thereby achieving a sealing effect.
[0021] The connecting screw tube 6 is provided with a sealing ring groove 16 at its top. A sealing ring block 18 that matches the sealing ring groove 16 is provided between the connecting screw tube 6 and the connecting outer sleeve 12. A second sealing ring 17 is provided at the bottom of the sealing ring groove 16. A third sealing ring 19 is provided at the top of the connecting screw tube 6 outside the sealing ring groove 16. The sealing ring groove 16 and the sealing ring block 18, along with the second sealing ring 17 and the third sealing ring 19, can ensure further top sealing.
[0022] The sensor module 20 is threadedly connected to the compaction end 9. That is, when producing the sensor module 20, an external thread can be provided on the outside of the sensor module 20, and then it can be connected to the internal thread of the compaction end 9 to ensure a sealing effect. The connecting screw 8 is provided with a wiring hole 21 that matches the sensor module 20. The wiring hole 21 is filled with sealant 22. When actually producing the pressure transmitter 2, the wiring hole can be filled with sealant 22 to achieve a sealing effect.
[0023] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.
Claims
1. A pressure transmitter capable of rapid assembly, comprising an installation pipe (1) and a pressure transmitter (2), wherein the installation pipe (1) and the pressure transmitter (2) are respectively provided with a first mounting end (4) and a second mounting end (5) that cooperate with each other, both ends of the installation pipe (1) are provided with mounting flanges (3), and the bottom of the second mounting end (5) is provided with a sensor module (20), characterized in that: The first mounting end (4) includes a connecting screw tube (6), the connecting screw tube (6) is provided with a first connecting internal thread (7), and the second mounting end (5) includes a connecting screw rod (8) that mates with the connecting screw tube (6), the connecting screw rod (8) is provided with a first connecting external thread (10) that mates with the first connecting internal thread (7). The second mounting end (5) includes a connecting sleeve (12) disposed outside the connecting screw (8), the inner side of the connecting sleeve (12) is provided with a second connecting internal thread (13), and the outer side of the connecting screw tube (6) is provided with a second connecting external thread (11) that matches the second connecting internal thread (13).
2. A pressure transmitter according to claim 1, wherein: The connecting screw (6) has a sealing ring structure (14) at the bottom, a first sealing ring (15) at the top, and a compaction end (9) that matches the sealing ring structure (14) and the first sealing ring (15) at the bottom.
3. A pressure transmitter according to claim 1, wherein: The top of the connecting screw tube (6) is provided with a sealing ring groove (16), and a sealing ring block (18) that matches the sealing ring groove (16) is provided between the connecting screw tube (6) and the connecting outer sleeve (12).
4. A pressure transmitter according to claim 3, wherein: A second sealing ring (17) is provided at the bottom of the sealing ring groove (16).
5. A pressure transmitter according to claim 3, wherein: The top of the connecting screw tube (6) is provided with a third sealing ring (19) outside the sealing ring groove (16).
6. A pressure transmitter according to claim 2, wherein: The sensor module (20) is threadedly connected to the compaction end (9), and the connecting screw (8) is provided with a wiring hole (21) that matches the sensor module (20). The wiring hole (21) is filled with sealant (22).