Diaphragm of pressure transmitter

Abstract

The utility model relates to the technical field of pressure transmitters, and discloses a diaphragm of a pressure transmitter, which comprises a pressure transmitter body and a flange plate mounted at the bottom of the pressure transmitter body, and an isolation diaphragm is mounted in the center of the bottom of the flange plate. An eccentric assembly hole is formed in the bottom of the flange plate, an assembly cylinder is installed in the assembly hole, a cavity is formed in the assembly cylinder, a pressure early warning piece located in the cavity is installed on the inner wall of one end of the assembly cylinder, and a rod type elastic piece which is inserted into the cavity and abuts against the pressure early warning piece is installed at the other end of the assembly cylinder. An abutting piece abutting against the outer side of the isolation diaphragm is installed on the side face of the rod type elastic piece. The utility model provides a diaphragm of a pressure transmitter, which solves the problem that after the diaphragm is loosened, early warning cannot be performed in time to remind workers.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure transmitters, in particular to a diaphragm of a pressure transmitter. Background Art

[0002] The flange pressure transmitter is tightly connected to the pipeline system through the flange at its bottom. The diaphragm at the bottom of the flange is the key component for sensing pressure. It is in direct contact with the measured medium and senses its pressure changes. When the medium pressure acts on the diaphragm, the diaphragm will deform accordingly according to the pressure. The deformation of the diaphragm is transmitted to the sensor through the hydraulic medium inside the transmitter, causing the resistance of the sensor chip to change, thereby causing the output voltage of the detection system to change. The output voltage is proportional to the pressure change, and then converted into a standardized signal output by the adapter unit and amplifier;

[0003] In the structure of a flange pressure transmitter, the diaphragm is usually firmly mounted on the bottom of the flange to ensure that it can directly and accurately sense the pressure changes of the measured medium. However, in the actual operating environment, due to mechanical vibration, the welding parts of the diaphragm may become loose, which in turn causes the sealing performance to deteriorate or fail. The pressure transmitters in the existing technology are not equipped with a real-time monitoring and early warning mechanism for diaphragm loosening, which leads to the accumulation of measurement errors and affects the safety and stability of the entire production process.

[0004] In order to solve the above problems, this application proposes a diaphragm for a pressure transmitter. Utility Model Content

[0005] Based on the technical problems existing in the background technology, the utility model proposes a diaphragm for a pressure transmitter.

[0006] The utility model provides a diaphragm for a pressure transmitter, comprising a pressure transmitter body and a flange mounted on the bottom of the pressure transmitter body, wherein an isolation diaphragm is mounted at the center of the bottom of the flange;

[0007] An eccentrically arranged assembly hole is provided at the bottom of the flange, an assembly cylinder is installed in the assembly hole, a cavity is provided in the assembly cylinder, a pressure warning component located in the cavity is installed on the inner wall of one end of the assembly cylinder, a rod-type elastic component inserted into the cavity and abutting against the pressure warning component is installed on the other end of the assembly cylinder, and a supporting component abutting against the outer side of the isolation diaphragm is installed on the side of the rod-type elastic component.

[0008] Preferably, the pressure warning component includes a pressure sensor and a buzzer, a partition block is installed in the cavity, the buzzer is installed on the inner wall of one end of the assembly tube, the pressure sensor is installed on the side of the partition block away from the buzzer, the pressure sensor and the buzzer are communicatively connected, and the pressure sensor and the buzzer are both connected to the controller.

[0009] Preferably, the rod-type elastic member includes a pressure rod, an end block and a spring. The other end of the assembly cylinder is provided with an opening connected to the cavity. The pressure rod slides through the opening and abuts against the pressure sensor. The end block is installed at the end of the pressure rod away from the pressure sensor. The spring is sleeved on the pressure rod and is located between the assembly cylinder and the end block, and the two ends of the spring are respectively connected to the other end of the assembly cylinder and the inner side of the end block.

[0010] Preferably, the abutting member includes a abutting rod, one end of which is connected to the side surface of the end block, and one end of the abutting rod away from the end block is bent toward the isolation diaphragm and is equipped with a rubber head abutting against the end block.

[0011] Preferably, the flange is provided with a plurality of circumferentially arranged mounting holes.

[0012] The above technical solution of the utility model has the following beneficial technical effects:

[0013] By setting the pressure warning parts, rod-type elastic parts and abutment parts, during use, when the isolation diaphragm at the bottom of the flange is loosened, the abutment parts abutting against the isolation diaphragm will be subjected to the force, driving the rod-type elastic part to move on the assembly cylinder and undergo elastic deformation, and the pressure of the rod-type elastic part abutting against the pressure warning part will change. The pressure warning part can be used to give a timely warning to remind the staff that the isolation diaphragm is loose and needs to be inspected and repaired in time. The structure can give a timely warning after the isolation diaphragm is loosened through the cooperation of the pressure warning parts, the rod-type elastic parts and the abutment parts, thereby ensuring the safety and stability of the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural schematic diagram of a diaphragm of a pressure transmitter proposed by the utility model.

[0015] Figure 2 For this utility model Figure 1 A magnified view of center.

[0016] Figure 3 For this utility model Figure 1 Schematic diagram of the local structure in.

[0017] Figure 4 For this utility model Figure 3 Top view in .

[0018] Figure numerals: 1. Pressure transmitter body; 2. Flange; 3. Isolation diaphragm; 4. Assembly cylinder; 5. Pressure warning component; 51. Pressure sensor; 52. Buzzer; 6. Rod-type elastic component; 61. Pressure rod; 62. End block; 63. Spring; 7. Abutment component; 71. Abutment rod; 72. Rubber head; 8. Separation block. DETAILED DESCRIPTION

[0019] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely illustrative and are not intended to limit the scope of the present invention. Furthermore, descriptions of known structures and technologies are omitted in the following description to avoid unnecessary confusion regarding the concepts of the present invention.

[0020] like Figure 1-4 As shown, the diaphragm of a pressure transmitter proposed by the present invention comprises a pressure transmitter body 1 and a flange 2 installed at the bottom of the pressure transmitter body 1, and an isolation diaphragm 3 is installed at the center of the bottom of the flange 2;

[0021] In this embodiment, an eccentrically arranged assembly hole is defined at the bottom of the flange 2, within which an assembly sleeve 4 is mounted. A cavity is defined within the assembly sleeve 4, and a pressure warning component 5 is mounted on the inner wall of one end of the assembly sleeve 4, located within the cavity. The pressure warning component 5 includes a pressure sensor 51 and a buzzer 52. A partition 8 is mounted within the cavity, and the buzzer 52 is mounted on the inner wall of one end of the assembly sleeve 4. The pressure sensor 51 is mounted on the side of the partition 8 away from the buzzer 52. The pressure sensor 51 and the buzzer 52 are communicatively connected, and both the pressure sensor 51 and the buzzer 52 are connected to a controller.

[0022] In this embodiment, the other end of the assembly cylinder 4 is equipped with a rod-type elastic member 6 that is inserted into the cavity and abuts against the pressure warning member 5. The rod-type elastic member 6 includes a pressure rod 61, an end block 62, and a spring 63. The other end of the assembly cylinder 4 is provided with an opening that communicates with the cavity. The pressure rod 61 slides through the opening and abuts against the pressure sensor 51. The end block 62 is installed at the end of the pressure rod 61 away from the pressure sensor 51. The spring 63 is sleeved on the pressure rod 61 and is located between the assembly cylinder 4 and the end block 62. The two ends of the spring 63 are respectively connected to the other end of the assembly cylinder 4 and the inner side of the end block 62.

[0023] In this embodiment, a side member 7 is mounted on the side of the rod-type elastic member 6, which abuts against the outer side of the isolation diaphragm 3. The abutment member 7 includes a rod 71, one end of which is connected to the side of the end block 62. The end of the rod 71 away from the end block 62 is bent toward the isolation diaphragm 3 and is mounted with a rubber head 72 for abutment therewith.

[0024] It should be noted that: during use, when the isolation diaphragm 3 at the bottom of the flange 2 is loose, the rubber head 72 and the abutment rod 71 that are against the isolation diaphragm 3 will be subjected to the force and transmit the force to the end block 62, which drives the pressure rod 61 to slide on the end of the assembly cylinder 4 through the end block 62, and the spring 63 connected to the end block 62 will also undergo a corresponding degree of elastic deformation. When the pressure rod 61 moves on the assembly cylinder 4, the force acting on the pressure sensor 51 will change, and the pressure sensor 51 will immediately transmit the change information to the controller, and the controller will send an instruction to the buzzer 52 to issue an early warning to remind the staff that the isolation diaphragm 3 is loose and needs to be inspected and repaired in time. This structure can provide a timely early warning after the isolation diaphragm 3 is loose through the cooperation of the pressure early warning part 5, the rod-type elastic part 6 and the abutment part 7, thereby ensuring the safety and stability of the production process.

[0025] In a specific embodiment, a plurality of circumferentially arranged mounting holes are provided on the flange 2; by providing the mounting holes, the flange 2 at the bottom of the pressure transmitter body 1 is easily mounted on the pipeline.

[0026] It should be understood that the above-described specific embodiments of the present invention are merely illustrative of or explanation of the principles of the present invention and do not constitute limitations of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention shall be included within the scope of protection of the present invention. In addition, the appended claims of the present invention are intended to cover all variations and modifications that fall within the scope and metes and bounds of the appended claims, or equivalents thereof.

Claims

1. A diaphragm for a pressure transmitter, comprising a pressure transmitter body (1) and a flange (2) mounted on the bottom of the pressure transmitter body (1), wherein an isolation diaphragm (3) is mounted at the center of the bottom of the flange (2), and characterized in that: An eccentrically arranged assembly hole is provided at the bottom of the flange (2), an assembly cylinder (4) is installed in the assembly hole, a cavity is provided in the assembly cylinder (4), a pressure warning component (5) located in the cavity is installed on the inner wall of one end of the assembly cylinder (4), a rod-type elastic component (6) inserted into the cavity and abutting against the pressure warning component (5) is installed at the other end of the assembly cylinder (4), and a supporting component (7) abutting against the outer side of the isolation diaphragm (3) is installed on the side of the rod-type elastic component (6).

2. The diaphragm of a pressure transmitter according to claim 1, characterized in that: The pressure warning component (5) includes a pressure sensor (51) and a buzzer (52). A partition block (8) is installed in the cavity. The buzzer (52) is installed on the inner wall of one end of the assembly cylinder (4). The pressure sensor (51) is installed on a side of the partition block (8) away from the buzzer (52). The pressure sensor (51) and the buzzer (52) are communicatively connected. Both the pressure sensor (51) and the buzzer (52) are connected to a controller.

3. The diaphragm of a pressure transmitter according to claim 2, characterized in that: The rod-type elastic member (6) includes a pressure rod (61), an end block (62) and a spring (63). The other end of the assembly cylinder (4) is provided with an opening connected to the cavity. The pressure rod (61) slides through the opening and abuts against the pressure sensor (51). The end block (62) is installed at the end of the pressure rod (61) away from the pressure sensor (51). The spring (63) is sleeved on the pressure rod (61) and is located between the assembly cylinder (4) and the end block (62). The two ends of the spring (63) are respectively connected to the other end of the assembly cylinder (4) and the inner side of the end block (62).

4. The diaphragm of a pressure transmitter according to claim 3, characterized in that: The abutting member (7) comprises a abutting rod (71), one end of which is connected to the side of the end block (62), and one end of the abutting rod (71) away from the end block (62) is bent toward the isolation diaphragm (3) and is provided with a rubber head (72) abutting against the end block.

5. The diaphragm of a pressure transmitter according to claim 1, characterized in that: The flange (2) is provided with a plurality of circumferentially arranged mounting holes.

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