A pressure transmitter

Abstract

This utility model relates to the field of sensor technology, specifically a pressure transmitter. It includes a pressure transmitter assembly and a locking assembly. The pressure transmitter assembly includes a mounting base. The locking assembly includes a first locking ring and a second locking ring. A base connector is provided on the top of the mounting base. The base connector includes a Parker connector, a locking housing, and a housing locking edge. The mounting base includes a limiting assembly, which includes a first limiting groove and a second limiting groove. A first locking block is connected to the inner ring of the first locking ring, and a second locking block is connected to the inner ring of the second locking ring. A buffer pad is connected to the end of the first locking block away from the first locking ring. The second locking block prevents external liquids such as rainwater from flowing into the gap between the locking assembly and the external thread of the mounting base through the gap between the base connector and the second locking ring, thus improving the waterproofness of the pressure transmitter assembly.

Description

Technical Field

[0001] This utility model relates to the field of sensors, specifically a pressure transmitter. Background Technology

[0002] A pressure transmitter is a device or apparatus that can sense pressure signals and convert them into usable output electrical signals according to a certain rule.

[0003] Pressure transmitters are one of the most commonly used sensors in industrial practice. They are widely used in various industrial automation environments, including water conservancy and hydropower, railway transportation, intelligent buildings, production automation, aerospace, military, petrochemical, oil wells, power, shipbuilding, machine tools, pipelines and many other industries.

[0004] Current pressure transmitters use Parker connectors for cable exit. The Parker connector is attached to the metal housing using a riveting or spin-riveting process, which involves bending the end of the metal housing to form a flange, thus securing the Parker connector to the metal housing. However, this riveting or spin-riveting process causes deformation of the metal housing, generating internal stress. This stress is transmitted to the core, affecting the measurement accuracy of the product. Utility Model Content

[0005] To address the above problems, the purpose of this utility model is to provide a pressure transmitter that solves the problem that when using riveting or pressing flanged processes, the metal shell will deform, thereby generating internal stress. This stress will be transmitted to the core, thus affecting the measurement accuracy of the product. The present invention solves this problem by providing internal threads on the inner rings of the first and second locking rings for connection with the limiting component, which are used to connect with the external threads on the open end of the mounting base. At the same time, the locking component is coaxially mounted on the base connector, which is used to cooperate with the external threads on the mounting base to achieve a locking connection between the pressure transmitter component and the locking component.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a pressure transmitter, comprising a pressure transmitter assembly and a locking assembly. The pressure transmitter assembly includes a mounting base, and the locking assembly includes a first locking ring and a second locking ring. A base connector is provided on the top of the mounting base, and the base connector includes a Parker connector, a locking housing, and a housing locking edge. The mounting base includes a limiting assembly, which includes a first limiting groove and a second limiting groove. A first locking block is connected to the inner ring of the first locking ring, and a second locking block is connected to the inner ring of the second locking ring. A buffer pad is connected to the end of the first locking block away from the first locking ring.

[0007] The beneficial effects of this utility model are as follows: the inner rings of the first locking ring and the second locking ring are provided with internal threads that connect with the limiting component, which are used to connect with the external threads of the base at the open end of the mounting base. At the same time, the locking component is coaxially set on the base joint, which is used to cooperate with the external threads of the base on the mounting base to realize the locking connection between the pressure transmitter component and the locking component.

[0008] To improve the stability of the connection between the locking assembly and the limiting assembly:

[0009] As a further improvement to the above technical solution: the first locking ring and the second locking ring are integrally formed, and the first locking ring and the second locking ring form a locking nut assembly that is connected to the limiting component.

[0010] The beneficial effects of this improvement are as follows: the integrated structure of the first locking ring and the second locking ring ensures the strength of the locking component during use, while also improving the stability of the connection between the locking component and the limiting component.

[0011] To enable a locking connection between the pressure transmitter assembly and the locking assembly, which mates with the external thread of the base on the mounting base:

[0012] As a further improvement to the above technical solution: the inner rings of the first locking ring and the second locking ring are provided with internal threads for connection with the limiting component, and the limiting component is provided with first limiting grooves at equal intervals on the side near the first locking ring.

[0013] The beneficial effects of this improvement are as follows: the inner rings of the first and second locking rings are provided with internal threads that connect with the limiting component, which are used to connect with the external threads of the base at the open end of the mounting base. At the same time, the locking component is coaxially mounted on the base connector, which is used to cooperate with the external threads of the base on the mounting base to achieve a locking connection between the pressure transmitter assembly and the locking component.

[0014] In order to connect the buffer pad layer to the inner wall of the first limiting groove, the buffer pad layer is used to cooperate with the first locking block:

[0015] As a further improvement to the above technical solution: the open end of the mounting base is provided with an external thread for connection with the locking component, and the inner wall of the first limiting groove is connected with a buffer pad layer.

[0016] The beneficial effects of this improvement are as follows: the opening of the first limiting groove provides a groove for the insertion of the first locking block, and the inner wall of the first limiting groove is connected to a buffer pad layer for use in conjunction with the buffer pad layer connected to the first locking block.

[0017] To reduce internal stress caused by connection assembly, thereby ensuring the safety of the pressure transmitter during use:

[0018] As a further improvement to the above technical solution: the front cross-section of the first locking block is set with an arc-shaped structure, and the first locking block is a hemispherical rubber block.

[0019] The beneficial effects of this improvement are: by setting the first locking block, when the first locking ring is connected to the limiting component, it is used to reduce the internal stress caused by the connection assembly, thereby ensuring the safety of the pressure transmitter during use.

[0020] The second limiting groove is provided for the insertion of the second locking block:

[0021] As a further improvement to the above technical solution: the size of the second limiting groove matches the size of the second locking block, and the second limiting groove is equally spaced on the inner side of the wall of the limiting component near the second locking ring.

[0022] The beneficial effect of this improvement is that the second limiting groove is used for the insertion of the second locking block.

[0023] To prevent external liquids such as rainwater from flowing into the gap between the locking assembly and the external thread of the mounting base through the gap between the base joint and the second locking ring:

[0024] As a further improvement to the above technical solution: the front cross-section of the second locking block is a tapered structure, and the end of the second locking block away from the second locking ring is an arc-shaped structure.

[0025] The beneficial effects of this improvement are: by setting the second locking block, external liquids such as rainwater are prevented from flowing into the gap between the locking assembly and the external thread of the mounting base through the gap between the base joint and the second locking ring, thereby improving the waterproofness of the pressure transmitter assembly.

[0026] To improve the stability of the connection between the first locking ring and the limiting assembly:

[0027] As a further improvement to the above technical solution: the front cross-section of the buffer pad is set with an arc-shaped structure, and the buffer pad is a hemispherical rubber block.

[0028] The beneficial effect of this improvement is that by simultaneously providing a buffer pad layer on the outer wall of the first locking block and the inner wall of the first limiting groove, the stability of the connection between the first locking ring and the limiting component is improved. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the front cross-sectional structure of this utility model.

[0030] Figure 2 This is a structural schematic diagram of the background technology of this utility model.

[0031] Figure 3 for Figure 1 Enlarged diagram of point A in the middle.

[0032] Figure 4 for Figure 1 Enlarged diagram of point B in the middle.

[0033] Figure 5 for Figure 2 Enlarged diagram of point C in the middle.

[0034] Figure 6 This is a schematic diagram of the locking assembly of this utility model.

[0035] In the diagram: 1. Pressure transmitter assembly; 11. Mounting base; 12. Base connector; 121. Parker connector; 122. Locking housing; 123. Housing locking edge; 13. Limiting assembly; 131. First limiting groove; 132. Second limiting groove; 2. Locking assembly; 21. First locking ring; 22. Second locking ring; 23. First locking block; 24. Buffer pad; 25. Second locking block. Detailed Implementation

[0036] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of this utility model in any way.

[0037] like Figure 1-6As shown, a pressure transmitter includes a pressure transmitter assembly 1 and a locking assembly 2. The pressure transmitter assembly 1 includes a mounting base 11, and the locking assembly 2 includes a first locking ring 21 and a second locking ring 22. A base connector 12 is provided on the top of the mounting base 11. The base connector 12 includes a Parker connector 121, a locking housing 122, and a housing locking edge 123. The mounting base 11 includes a limiting assembly 13, which includes a first limiting groove 131 and a second limiting groove 132. A first locking block 23 is connected to the inner ring of the first locking ring 21, and a second locking block 25 is connected to the inner ring of the second locking ring 22. The end of the first locking block 23 away from the first locking ring 21 is connected to... The buffer pad 24, the first locking ring 21 and the second locking ring 22 are integrally formed, and the first locking ring 21 and the second locking ring 22 form a locking nut assembly that connects with the limiting component 13; the integrally formed structure of the first locking ring 21 and the second locking ring 22 is used to ensure the strength of the locking component 2 during use, and to improve the stability of the connection between the locking component 2 and the limiting component 13. The inner rings of the first locking ring 21 and the second locking ring 22 are provided with internal threads that connect with the limiting component 13. The limiting component 13 has first limiting grooves 131 at equal intervals on the side near the first locking ring 21; the inner rings of the first locking ring 21 and the second locking ring 22 are provided with internal threads that connect with the limiting component 13. The internal thread of the limiting component 13 is used to connect with the external thread of the base at the open end of the mounting base 11. Simultaneously, it is coaxially mounted on the base connector 12 via the locking component 2, which engages with the external thread of the base on the mounting base 11 to achieve a locking connection between the pressure transmitter assembly 1 and the locking component 2. The open end of the mounting base 11 is provided with an external thread for connecting with the locking component 2. A buffer pad 24 is connected to the inner wall of the first limiting groove 131. The opening of the first limiting groove 131 serves as a slot for the insertion of the first locking block 23. The buffer pad 24 connected to the inner wall of the first limiting groove 131 engages with the buffer pad 24 connected to the first locking block 23. The front cross-section of the first locking block 25 is an arc-shaped structure, and the first locking block 23 is a hemispherical rubber block. The first locking block 23 is used to reduce the internal stress caused by the connection and assembly when the first locking ring 21 is connected to the limiting component 13, thereby ensuring the safety of the pressure transmitter during use. The size of the second limiting groove 132 matches the size of the second locking block 25. The second limiting groove 132 is evenly spaced on the inner side of the wall of the limiting component 13 near the second locking ring 22. The second limiting groove 132 is used for the insertion of the second locking block 25. The front cross-section of the second locking block 25 is a conical structure, and the end of the second locking block 25 away from the second locking ring 22 is an arc-shaped structure.The second locking block 25 is used to prevent external liquids such as rainwater from flowing into the gap between the locking assembly 2 and the external thread of the mounting base 11 through the gap between the base joint 12 and the second locking ring 22, thereby improving the waterproofness of the pressure transmitter assembly 1. The front cross-section of the buffer pad 24 is an arc-shaped structure, and the buffer pad 24 is a hemispherical rubber block. By simultaneously providing the buffer pad 24 on the outer wall of the first locking block 23 and the inner wall of the first limiting groove 131, the stability of the connection between the first locking ring 21 and the limiting assembly 13 is improved.

[0038] The working principle of this utility model is as follows: In use, the integrally formed structure of the first locking ring 21 and the second locking ring 22 ensures the strength of the locking assembly 2 during use and improves the stability of the connection between the locking assembly 2 and the limiting assembly 13. The first limiting groove 131 serves as a slot for the insertion of the first locking block 23. A buffer pad 24 is connected to the inner wall of the first limiting groove 131 to cooperate with the buffer pad 24 connected to the first locking block 23. The first locking block 23 reduces the internal stress caused by the connection assembly when connecting the first locking ring 21 and the limiting assembly 13, thereby ensuring the safety of the pressure transmitter during use. The second limiting groove 132 is used for the insertion of the second locking block 25. A buffer pad 24 is provided on both the outer wall of the first locking block 23 and the inner wall of the first limiting groove 131 to improve the stability of the connection between the first locking ring 21 and the limiting component 13. The inner rings of the first locking ring 21 and the second locking ring 22 are provided with internal threads for connection with the limiting component 13, which are used to connect with the external threads of the base at the opening end of the mounting base 11. At the same time, the locking component 2 is coaxially set on the base joint 12 to cooperate with the external threads of the base on the mounting base 11 to achieve a locking connection between the pressure transmitter assembly 1 and the locking component 2. The second locking block 25 is provided to prevent rainwater and other external liquids from flowing into the gap between the locking component 2 and the external threads of the mounting base 11 through the gap between the base joint 12 and the second locking ring 22, thereby improving the waterproofness of the pressure transmitter assembly 1. The pressure transmitter assembly 1 achieves the purpose of using the electrodes on the measuring diaphragm and the insulating sheets on both sides to form a capacitor. When the pressure of the measured medium acts on the insulating diaphragms on both sides, the diaphragms are displaced, and the capacitance on both sides changes. This is converted into a signal proportional to the pressure through oscillation and demodulation. Furthermore, the relevant principles involved in this structure are publicly available prior art, and the components are all general standard parts or parts known to those skilled in the art. Its structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0039] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of this utility model, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. A pressure transmitter, comprising a pressure transmitter assembly (1) and a locking assembly (2), wherein the pressure transmitter assembly (1) includes a mounting base (11), and the locking assembly (2) includes a first locking ring (21) and a second locking ring (22), characterized in that: The mounting base (11) is provided with a base connector (12) on its top. The base connector (12) includes a Parker connector (121), a locking housing (122), and a housing locking edge (123). The mounting base (11) includes a limiting component (13). The limiting component (13) includes a first limiting groove (131) and a second limiting groove (132). The inner ring of the first locking ring (21) is connected to a first locking block (23). The inner ring of the second locking ring (22) is connected to a second locking block (25). The end of the first locking block (23) away from the first locking ring (21) is connected to a buffer pad (24).

2. A pressure transmitter according to claim 1, characterized in that: The first locking ring (21) and the second locking ring (22) are integrally formed structures, and the first locking ring (21) and the second locking ring (22) form a locking nut assembly that is connected to the limiting component (13).

3. A pressure transmitter according to claim 1, characterized in that: The inner rings of the first locking ring (21) and the second locking ring (22) are provided with internal threads that connect with the limiting component (13). The limiting component (13) has a first limiting groove (131) at equal intervals on the side near the first locking ring (21).

4. A pressure transmitter according to claim 1, characterized in that: The mounting base (11) has an external thread at its open end that connects to the locking assembly (2), and the inner wall of the first limiting groove (131) is connected to a buffer pad (24).

5. A pressure transmitter according to claim 1, characterized in that: The front cross-section of the first locking block (23) is an arc-shaped structure, and the first locking block (23) is a hemispherical rubber block.

6. A pressure transmitter according to claim 1, characterized in that: The size of the second limiting groove (132) matches the size of the second locking block (25). The second limiting groove (132) is evenly spaced on the inner side of the wall of the limiting component (13) near the second locking ring (22).

7. A pressure transmitter according to claim 1, characterized in that: The front cross-section of the second locking block (25) is tapered, and the end of the second locking block (25) away from the second locking ring (22) is arc-shaped.

8. A pressure transmitter according to claim 1, characterized in that: The front cross-section of the buffer pad (24) is an arc-shaped structure, and the buffer pad (24) is a hemispherical rubber block.

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