Pressure transmitter shell

Abstract

The utility model discloses a pressure transmitter housing, and relates to the pressure transmitter housing field, the pressure transmitter housing comprises a housing, one side of the housing is provided with a mounting hole, the inner wall of the mounting hole is movably provided with a convex ring, the end portion of the convex ring is fixedly provided with a rear cover, the outer wall of the convex ring is provided with an inlet groove, the outer wall of the convex ring is provided with a transverse groove, and the transverse groove is provided with a through hole. An arc-shaped groove is formed in the outer wall of the protruding ring, and the entering groove, the transverse groove and the arc-shaped groove are connected. During installation, the limiting block enters the arc-shaped groove, then the rear cover is rotated, the rear cover only needs to be rotated by 60 degrees, the rear cover extrudes the rubber pad during installation, the rubber pad deforms to apply elastic force to the rear cover, the rear cover is stable during installation, the rear cover is not prone to being separated from the shell, and the installation efficiency is improved. And meanwhile, the two sides of the inner wall of the entering groove are inclined, one side of the limiting block is arc-shaped, the limiting block can conveniently enter the vertical groove, and the rear cover can be conveniently installed.

Description

Technical Field

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

[0002] A pressure transmitter is a device used to measure the pressure of media such as liquids, gases, or steam and convert it into a standard signal output. Pressure transmitters are widely used in industrial automation control systems to monitor and regulate the pressure in the system to ensure the safe and stable operation of equipment and processes. It typically uses a pressure sensor, signal processing, and output module to complete pressure detection and signal transmission. The pressure transmitter housing is used to protect the internal electronic components of the pressure transmitter.

[0003] The existing pressure transmitter housing has a rear cover on one side connected to the housing by threads. Users need to rotate the rear cover multiple times and then tighten it forcefully to fix the rear cover. However, the threaded connection of the rear cover is more troublesome to install and remove. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a pressure transmitter housing to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pressure transmitter housing, comprising a housing, a mounting hole on one side of the housing, a convex ring movably mounted on the inner wall of the mounting hole, a rear cover fixed to the end of the convex ring, an inlet groove on the outer wall of the convex ring, a transverse groove on the outer wall of the convex ring, and an arc-shaped groove on the outer wall of the convex ring, wherein the inlet groove, the transverse groove, and the arc-shaped groove are connected, and multiple sets of limiting blocks are fixed to the inner wall of the mounting hole.

[0006] By adopting the above technical solution, during installation, the limiting block enters the arc-shaped groove, and then the back cover is rotated. The back cover only needs to be rotated 60°. During installation, the back cover will squeeze the rubber pad, and the deformation of the rubber pad will give the back cover an elastic force, making the back cover more stable during installation and preventing it from easily separating from the shell. At the same time, the inclined surfaces on both sides of the inner wall of the groove and the arc-shaped setting on one side of the limiting block can facilitate the limiting block to enter the vertical groove, which is convenient for the installation of the back cover.

[0007] The present invention is further configured such that a PCB board is movably mounted inside the mounting hole, and a metal block is fixed on one side of the PCB board. A wiring hole is opened inside the metal block, and a plug rod is movably mounted on one side of the metal block. A spring is sleeved on the outer wall of the plug rod, and the end of the spring is fixedly connected to the PCB board. The outer wall of the PCB board is in contact with the inner wall of the mounting hole, and an inlet hole is opened on the outer wall of the housing.

[0008] Preferably, when the wire is inserted into the wiring hole and the back cover is pushed, the retaining ring inside the back cover will contact the plug rod. The retaining ring pushes the plug rod, and the plug rod slides inside the metal block. The plug rod compresses the spring, and at the same time, the plug rod also compresses the wire inside the wiring hole, thus fixing the wire, replacing the bolt fixing method.

[0009] The present invention is further configured such that a fixing ring is fixed to the inner wall of the rear cover, and multiple sets of extrusion rods are fixed to one side of the fixing ring.

[0010] Preferably, the compression rod can be used to limit the PCB board, so that the PCB board can be fixed inside the housing without bolts, making installation more convenient. At the same time, the setting of the fixing ring can facilitate the compression of the insertion rod.

[0011] The present invention is further configured such that a rubber pad is fixed on one side of the housing, and the inner diameter of the rubber pad is larger than the diameter of the convex ring.

[0012] Preferably, the rubber pad not only provides elasticity to the back cover during installation, but also seals the connection between the housing and the back cover.

[0013] The present invention is further configured such that the end of the extrusion rod is spherically shaped, and multiple sets of the extrusion rods are distributed on one side of the fixing ring.

[0014] Preferably, the spherical compression bar reduces friction between the back cover and the PCB board during rotation.

[0015] The present invention is further configured such that one side of the limiting block is arc-shaped, and the outer wall of the limiting block fits against the inner wall of the arc-shaped groove, and the inner wall of the inlet groove is conical.

[0016] Preferably, the arc-shaped limiting block can easily enter the inner wall of the inlet groove, thus facilitating the installation of the back cover.

[0017] The present invention is further configured such that both the back cover and the fixing ring are made of plastic.

[0018] Preferably, the back cover and retaining ring are made of non-conductive plastic to avoid the risk of electric shock.

[0019] The present invention is further configured such that the outer wall of the rear cover is irregularly shaped, which facilitates the rotation of the rear cover by personnel.

[0020] In summary, the present invention has the following main advantages:

[0021] 1. This utility model features a limiting block, an entry groove, a vertical groove, and an arc-shaped groove. During installation, the limiting block enters the arc-shaped groove, and then the back cover is rotated. The back cover only needs to be rotated 60°. During installation, the back cover compresses the rubber pad, and the deformation of the rubber pad provides elasticity to the back cover, making the installation of the back cover more stable and preventing it from easily separating from the shell. At the same time, the inclined surfaces on both sides of the inner wall of the entry groove and the arc-shaped design on one side of the limiting block facilitate the entry of the limiting block into the vertical groove, making the installation of the back cover easier.

[0022] 2. This utility model replaces the traditional bolt fixing method by setting up a PCB board, insert rod, spring, fixing ring and compression rod. During installation, the PCB board is compressed by the compression rod to limit the PCB board, which replaces the bolt fixing method and facilitates the installation and disassembly of the PCB board. At the same time, the insert rod can compress the wire to realize the connection between the PCB board and the wire, which replaces the bolt compression method. This makes the wire installation more convenient, the assembly faster, and the work efficiency higher. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a perspective view of the back cover of this utility model;

[0025] Figure 3 This is a schematic diagram of the internal structure of the housing of this utility model;

[0026] Figure 4 This is a schematic diagram showing the connection between the housing and the back cover of this utility model;

[0027] Figure 5 This is a side view of the present invention.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Housing; 2. Back cover; 3. Cable inlet; 4. Raised ring; 5. Retaining ring; 6. Extrusion rod; 7. Inlet groove; 8. Horizontal groove; 9. Arc groove; 10. PCB board; 11. Metal block; 12. Insert rod; 13. Spring; 14. Limiting block; 15. Rubber pad; 16. Mounting hole; 17. Wiring hole. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0031] The embodiments of this utility model will be described below based on its overall structure.

[0032] First embodiment:

[0033] Please see Figures 1-4 The device includes a housing 1. A mounting hole 16 is provided on one side of the housing 1. A protruding ring 4 is movably mounted on the inner wall of the mounting hole 16. A rear cover 2 is fixed to the end of the protruding ring 4. An entry groove 7, a transverse groove 8, and an arc-shaped groove 9 are provided on the outer wall of the protruding ring 4. The entry groove 7, the transverse groove 8, and the arc-shaped groove 9 are connected. Multiple sets of limiting blocks 14 are fixed on the inner wall of the mounting hole 16. When the rear cover 2 is installed, the protruding ring 4 enters the inner wall of the mounting hole 16, and the limiting blocks 14 enter the transverse groove 8 through the entry groove 7. Then, the rear cover 2 is rotated. When the rear cover 2 is rotated, the limiting blocks 14 rotate on the inner wall of the arc-shaped groove. When the rotation reaches 60 degrees, the rotation of the rear cover 2 stops.

[0034] For details regarding the above embodiments, please refer to [link / reference]. Figure 3 and Figure 4 A rubber pad 15 is fixed on one side of the housing 1, and the inner diameter of the rubber pad 15 is larger than the diameter of the convex ring 4. The rubber pad 15 not only provides an elastic force to the rear cover 2 when it is installed, but also seals the connection between the housing 1 and the rear cover 2.

[0035] For details regarding the above embodiments, please refer to [link / reference]. Figure 2 The end of the extrusion rod 6 is spherically shaped, and multiple sets of extrusion rods 6 are distributed on one side of the fixing ring 5. The spherically shaped extrusion rods 6 can reduce the friction between the back cover 2 and the PCB board 10 when rotating.

[0036] For details regarding the above embodiments, please refer to [link / reference]. Figure 3 The limiting block 14 is arc-shaped on one side, and the outer wall of the limiting block 14 fits against the inner wall of the arc groove 9. The inner wall of the entry groove 7 is conical. The arc-shaped limiting block 14 can easily enter the inner wall of the entry groove 7, thus facilitating the installation of the back cover 2.

[0037] For details regarding the above embodiments, please refer to [link / reference]. Figure 2 The back cover 2 and the fixing ring 5 are both made of plastic. The plastic back cover 2 and the fixing ring 5 are non-conductive, thus avoiding the problem of electric shock.

[0038] Second embodiment:

[0039] Please see Figures 3-5A PCB board 10 is movably mounted inside the mounting hole 16, and a metal block 11 is fixed to one side of the PCB board 10. A wiring hole 17 is opened inside the metal block 11, and a plug rod 12 is movably mounted to one side of the metal block 11. A spring 13 is sleeved on the outer wall of the plug rod 12, and the end of the spring 13 is fixedly connected to the PCB board 10. The outer wall of the PCB board 10 is in contact with the inner wall of the mounting hole 16. A wire inlet hole 3 is opened on the outer wall of the housing 1. When the wire is inserted into the wiring hole 17 and the back cover 2 is pushed, the fixing ring 5 inside the back cover will contact the plug rod 12. The fixing ring 5 pushes the plug rod 12, and the plug rod 12 slides inside the metal block 11. The plug rod 12 squeezes the spring 13, and at the same time, the plug rod 12 also squeezes the wire inside the wiring hole 17, thus completing the fixing of the wire, replacing the bolt fixing method.

[0040] For details regarding the above embodiments, please refer to [link / reference]. Figure 2 and Figure 4 The inner wall of the back cover 2 is fixed with a fixing ring 5, and multiple sets of pressing rods 6 are fixed on one side of the fixing ring 5. The pressing rods 6 can be used to limit the PCB board, so that the PCB board can be fixed inside the housing 1 without bolts, making the installation more convenient. At the same time, the fixing ring 5 can facilitate the pressing of the insertion rod 12.

[0041] For details regarding the above embodiments, please refer to [link / reference]. Figure 1 The outer wall of the back cover 2 is irregularly designed to facilitate the rotation of the back cover 2 by personnel.

[0042] In practical operation, the PCB board 10 is installed inside the mounting hole 16. Then, the wire is inserted into the infeed hole 3 and then into the wiring hole 17. The back cover 2 is then installed. When the back cover 2 is installed, the protruding ring 4 enters the inner wall of the mounting hole 16, and the limiting block 14 enters the transverse groove 8 through the infeed groove 7. When the back cover 2 is pushed further, the fixing ring 5 inside the back cover will contact the insertion rod 12. The fixing ring 5 pushes the insertion rod 12, and the insertion rod 12 slides inside the metal block 11. The insertion rod 12 compresses the spring 13. When the back cover 2 contacts the rubber pad 15, the back cover 2 is pushed further, and the back cover 2 compresses the rubber pad 5. The insertion rod 12 will compress the wire. Then the back cover 2 is rotated. When the back cover 2 rotates, the limiting block 14 rotates on the inner wall of the arc groove. When the rotation reaches 60 degrees, the rotation of the back cover 2 stops.

[0043] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A pressure transmitter housing, comprising a housing (1), characterized in that: The housing (1) has a mounting hole (16) on one side, and a convex ring (4) is movably mounted on the inner wall of the mounting hole (16). The end of the convex ring (4) is fixed with a rear cover (2), and the outer wall of the convex ring (4) has an entry groove (7), a transverse groove (8), and an arc groove (9). The entry groove (7), the transverse groove (8), and the arc groove (9) are connected. The inner wall of the mounting hole (16) is fixed with multiple sets of limiting blocks (14).

2. The pressure transmitter housing according to claim 1, characterized in that: The PCB board (10) is movably mounted inside the mounting hole (16), and a metal block (11) is fixed on one side of the PCB board (10). A wiring hole (17) is opened inside the metal block (11).

3. A pressure transmitter housing according to claim 1, characterized in that: The inner wall of the rear cover (2) is fixed with a fixing ring (5), and a plurality of compression rods (6) are fixed on one side of the fixing ring (5).

4. A pressure transmitter housing according to claim 2, characterized in that: A plug rod (12) is movably installed on one side of the metal block (11). A spring (13) is sleeved on the outer wall of the plug rod (12), and the end of the spring (13) is fixedly connected to the PCB board (10).

5. A pressure transmitter housing according to claim 1, characterized in that: A rubber pad (15) is fixed on one side of the housing (1), and the inner diameter of the rubber pad (15) is larger than the diameter of the convex ring (4).

6. A pressure transmitter housing according to claim 3, characterized in that: The end of the extrusion rod (6) is spherically shaped, and multiple sets of the extrusion rods (6) are distributed on one side of the fixing ring (5).

7. A pressure transmitter housing according to claim 1, characterized in that: The limiting block (14) is arc-shaped on one side, and the outer wall of the limiting block (14) fits against the inner wall of the arc groove (9). The inner wall of the inlet groove (7) is conical.

8. A pressure transmitter housing according to claim 2, characterized in that: The outer wall of the PCB board (10) is fitted with the inner wall of the mounting hole (16), and the outer wall of the housing (1) is provided with a wire inlet hole (3).

9. A pressure transmitter housing according to claim 3, characterized in that: The back cover (2) and the fixing ring (5) are both made of plastic.

10. A pressure transmitter housing according to claim 1, characterized in that: The outer wall of the back cover (2) is irregularly arranged to facilitate the rotation of the back cover (2) by personnel.

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