Diaphragm pressure gauge convenient to disassemble and assemble

Abstract

The utility model discloses a diaphragm pressure gauge convenient to disassemble and assemble, which comprises a first shell and a second shell, a fixed shell is arranged at the top of the first shell, a plurality of fixing devices are uniformly distributed at the bottom of an inner cavity of the fixed shell, and a control device matched with the fixing devices for use is arranged at the top of the inner cavity of the fixed shell. A plurality of fixing grooves used in cooperation with the fixing device are evenly distributed in the curved surface of the second shell, a plurality of positioning columns are evenly distributed at the bottom of the first shell, and a plurality of positioning grooves used in cooperation with the positioning columns are evenly distributed in the top of the second shell. According to the utility model, the fixed groove, the fixed device and the control device are matched for use, so that the problems that when the existing diaphragm pressure gauge is used, most of the diaphragm pressure gauges are fixed through screws, and when the pressure gauge needs to be dismounted and overhauled, the screws used for fixing the pressure gauge are generally required to be dismounted in sequence by a tool, the dismounting process is relatively tedious, and the cost is high are solved. And the maintenance efficiency of the pressure gauge is influenced.

Description

Technical Field

[0001] The utility model belongs to the technical field of diaphragm pressure gauges, and in particular relates to a diaphragm pressure gauge which is easy to assemble and disassemble. Background Art

[0002] A diaphragm pressure gauge is an instrument specifically used to measure the pressure or negative pressure of liquids, gases or steam with certain corrosiveness, non-solidifying or non-crystallizing properties. It mainly uses a metal corrugated diaphragm as an elastic element, senses pressure changes through the deformation of the diaphragm, and converts this deformation into a reading of the pointer on the dial through a connecting rod mechanism. Diaphragm pressure gauges are suitable for industrial fields such as chemistry, petroleum, and textiles, especially when it is necessary to measure the tiny pressure of highly corrosive and viscous media. The problem with the existing technology is that the existing diaphragm pressure gauges are mostly fixed by screws when in use. When the pressure gauge needs to be disassembled and repaired, tools are usually required to remove the screws used to fix the pressure gauge in turn. The disassembly process is relatively cumbersome, which affects the maintenance efficiency of the pressure gauge. Utility Model Content

[0003] In response to the problems existing in the prior art, the utility model provides a diaphragm pressure gauge that is easy to disassemble and assemble, which has the advantage of convenient installation and disassembly. It solves the problem that the existing diaphragm pressure gauges are mostly fixed by screws when in use. When the pressure gauge needs to be disassembled and repaired, tools are usually required to remove the screws used to fix the pressure gauge in turn. The disassembly process is relatively cumbersome, which affects the maintenance efficiency of the pressure gauge.

[0004] The utility model is implemented as follows: a diaphragm pressure gauge that is easy to disassemble and assemble comprises a first shell and a second shell, the first shell being arranged on the top of the second shell, a fixed shell being provided on the top of the first shell, a plurality of fixing devices being evenly distributed on the bottom of the inner cavity of the fixed shell, a control device for use in conjunction with the fixing devices being provided on the top of the inner cavity of the fixed shell, a plurality of fixing grooves for use in conjunction with the fixing devices being evenly distributed on the curved surface of the second shell, a plurality of positioning columns being evenly distributed on the bottom of the first shell, and a plurality of positioning grooves for use in conjunction with the positioning columns being evenly distributed on the top of the second shell.

[0005] As a preferred embodiment of the present invention, the fixing device includes a moving column, the top and bottom of the moving column are respectively provided with a limit block and a push plate, and the bottom of the push plate is provided with a fixing piece.

[0006] As a preferred embodiment of the present invention, the control device includes a control switch, a rotating column is provided at the bottom of the control switch, the top and bottom of the curved surface of the rotating column are respectively provided with a rotating disk and a reset torsion spring, and a plurality of travel through holes are evenly distributed at the bottom of the rotating disk.

[0007] As a preferred embodiment of the present invention, the top of the positioning post is fixedly connected to the first shell, and the bottom of the positioning post passes through the positioning slot and extends to the inner cavity of the positioning slot to contact the inner wall of the positioning slot.

[0008] As a preferred embodiment of the present invention, the bottom of the fixed shell is fixedly connected to the first shell, the top of the fixed shell is provided with a first through hole for use with the rotating column, and the curved surface of the fixed shell is evenly distributed with multiple second through holes for use with the push plate.

[0009] As a preferred embodiment of the present invention, the bottom of the movable column is fixedly connected to the push plate, the top of the movable column passes through the stroke through hole, extends to the outside of the stroke through hole, and is fixedly connected to the limit block, the curved surface of the movable column contacts the inner wall of the stroke through hole, the side of the push plate away from the movable column passes through the second through hole, extends to the outside of the second through hole, and is fixedly connected to the fixing member, the side of the fixing member close to the fixed groove passes through the fixed groove, extends to the inner cavity of the fixed groove, and contacts the inner wall of the fixed groove.

[0010] As a preferred embodiment of the present invention, the top of the rotating column is fixedly connected to the control switch, the bottom of the rotating column passes through the first through hole, and extends to the outside of the first through hole and is rotatably connected to the first shell through a rotating shaft, the rotating disk is fixedly connected to the rotating column, and the top and bottom of the reset torsion spring are fixedly connected to the rotating disk and the first shell respectively.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0012] 1. The utility model solves the problem that the existing diaphragm pressure gauge is mostly fixed by screws when in use, and when the pressure gauge needs to be disassembled and repaired, tools are usually required to remove the screws used to fix the pressure gauge in turn, and the disassembly process is relatively cumbersome, which affects the maintenance efficiency of the pressure gauge.

[0013] 2. The present invention can fix the second shell by providing a fixing device, making it convenient for users to use the second shell.

[0014] 3. The present invention is capable of controlling the fixing device by providing a control device, making it easier for the user to use the fixing device.

[0015] 4. The present invention provides positioning posts and positioning grooves to limit the first and second housings, making it easier for users to install the first and second housings.

[0016] 5. The present invention can limit the position of the rotating column by providing the first through hole, and can limit the position of the push plate by providing the second through hole.

[0017] 6. The utility model can move the push plate by setting a movable column, limit the movable column by setting a limit block, drive the fixing member to move by setting a push plate, and fix the second shell by setting a fixing member.

[0018] 7. The utility model can drive the rotating column to rotate by setting a control switch, can drive the rotating disk to rotate by setting a rotating column, can drive the moving column to move by setting a rotating disk and a stroke through hole, and can reset the rotating disk by setting a reset torsion spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure provided by an embodiment of the utility model;

[0020] Figure 2 This is an exploded view of the first housing, the second housing, and the fixed housing provided by an embodiment of the present utility model;

[0021] Figure 3 This is a full cross-sectional view of the fixed housing provided by an embodiment of the present utility model;

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the fixing device and the control device provided in an embodiment of the utility model.

[0023] In the figure: 1. First shell; 2. Second shell; 3. Fixed shell; 4. Fixing device; 5. Control device; 6. Fixing slot; 7. Positioning column; 8. Positioning slot; 9. First through hole; 10. Second through hole; 401. Moving column; 402. Limit block; 403. Push plate; 404. Fixing part; 501. Control switch; 502. Rotating column; 503. Rotating disk; 504. Reset torsion spring; 505. Travel through hole. DETAILED DESCRIPTION

[0024] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0025] The structure of the present utility model is described in detail below with reference to the accompanying drawings.

[0026] like Figures 1 to 4As shown, an embodiment of the present invention provides a diaphragm pressure gauge that is easy to disassemble and assemble, including a first shell 1 and a second shell 2. The first shell 1 is arranged on the top of the second shell 2. A fixed shell 3 is provided on the top of the first shell 1. A plurality of fixing devices 4 are evenly distributed on the bottom of the inner cavity of the fixed shell 3. A control device 5 used in conjunction with the fixing device 4 is provided on the top of the inner cavity of the fixed shell 3. A plurality of fixing grooves 6 used in conjunction with the fixing device 4 are evenly distributed on the curved surface of the second shell 2. A plurality of positioning columns 7 are evenly distributed on the bottom of the first shell 1. A plurality of positioning grooves 8 used in conjunction with the positioning columns 7 are evenly distributed on the top of the second shell 2.

[0027] refer to Figure 4 The fixing device 4 includes a moving column 401 , a limit block 402 and a push plate 403 are respectively provided at the top and bottom of the moving column 401 , and a fixing member 404 is provided at the bottom of the push plate 403 .

[0028] With the above solution, by providing the fixing device 4 , the second shell 2 can be fixed, making it convenient for the user to use the second shell 2 .

[0029] refer to Figure 4 The control device 5 includes a control switch 501, a rotating column 502 is provided at the bottom of the control switch 501, a rotating disk 503 and a reset torsion spring 504 are respectively provided on the top and bottom of the curved surface of the rotating column 502, and a plurality of travel through holes 505 are evenly distributed at the bottom of the rotating disk 503.

[0030] With the above solution, by providing the control device 5 , the fixing device 4 can be controlled, making it convenient for the user to use the fixing device 4 .

[0031] refer to Figure 2 The top of the positioning column 7 is fixedly connected to the first shell 1 , and the bottom of the positioning column 7 passes through the positioning groove 8 and extends to the inner cavity of the positioning groove 8 to contact the inner wall of the positioning groove 8 .

[0032] The above solution adopts the positioning column 7 and the positioning groove 8 to limit the first shell 1 and the second shell 2, making it convenient for users to install the first shell 1 and the second shell 2.

[0033] refer to Figure 2 and Figure 3 The bottom of the fixed shell 3 is fixedly connected to the first shell 1, and the top of the fixed shell 3 is provided with a first through hole 9 for use with the rotating column 502, and the curved surface of the fixed shell 3 is evenly distributed with multiple second through holes 10 for use with the push plate 403.

[0034] By adopting the above solution, the rotating column 502 can be limited by providing the first through hole 9 , and the pushing plate 403 can be limited by providing the second through hole 10 .

[0035] refer to Figure 2 and Figure 4 The bottom of the moving column 401 is fixedly connected to the push plate 403, the top of the moving column 401 passes through the stroke through hole 505, and extends to the outside of the stroke through hole 505 and is fixedly connected to the limit block 402, the curved surface of the moving column 401 contacts the inner wall of the stroke through hole 505, the side of the push plate 403 away from the moving column 401 passes through the second through hole 10, and extends to the outside of the second through hole 10 and is fixedly connected to the fixing member 404, the side of the fixing member 404 close to the fixing groove 6 passes through the fixing groove 6, and extends to the inner cavity of the fixing groove 6 and contacts the inner wall of the fixing groove 6.

[0036] The above solution is adopted: by setting the movable column 401, the push plate 403 can be moved, by setting the limit block 402, the movable column 401 can be limited, by setting the push plate 403, the fixing part 404 can be driven to move, and by setting the fixing part 404, the second shell 2 can be fixed.

[0037] refer to Figure 2 and Figure 4 The top of the rotating column 502 is fixedly connected to the control switch 501, the bottom of the rotating column 502 passes through the first through hole 9, and extends to the outside of the first through hole 9 and is rotatably connected to the first shell 1 through the rotating shaft, the rotating disk 503 is fixedly connected to the rotating column 502, and the top and bottom of the return torsion spring 504 are fixedly connected to the rotating disk 503 and the first shell 1 respectively.

[0038] The above scheme is adopted: by setting the control switch 501, the rotating column 502 can be driven to rotate, by setting the rotating column 502, the rotating disk 503 can be driven to rotate, by setting the rotating disk 503 and the travel through hole 505, the movable column 401 can be driven to move, and by setting the reset torsion spring 504, the rotating disk 503 can be reset.

[0039] The working principle of this utility model:

[0040] When in use, the second shell 2 is placed in a suitable position so that the positions of the positioning column 7 and the positioning groove 8 correspond, and then the second shell 2 is pressed and the fixing part 404 is pushed to move. The fixing part 404 drives the pushing plate 403 to move synchronously, and the pushing plate 403 drives the moving column 401 to move in the inner cavity of the travel through hole 505. The moving column 401 drives the rotating disk 503 to rotate and twists the reset torsion spring 504. The rotating disk 503 drives the rotating column 502 and the control switch 501 to rotate synchronously. When the fixing part 404 enters the inner cavity of the fixing groove 6, the force released after the reset torsion spring 504 is twisted will drive the rotating disk 503, the rotating column 502 and the control switch 501 to rotate synchronously in the opposite direction. The rotating disk 503 drives the moving column 401 to move in the opposite direction in the inner cavity of the travel through hole 505. The moving column 401 drives the pushing plate 403 and the fixing part 404 to move synchronously in the opposite direction and reset to complete the installation.

[0041] To sum up: the diaphragm pressure gauge that is easy to disassemble and assemble solves the problem that the existing diaphragm pressure gauge is mostly fixed by screws when in use, by setting the fixing groove 6, the fixing device 4 and the control device 5. When the pressure gauge needs to be disassembled and repaired, tools are usually required to remove the screws used to fix the pressure gauge in turn. The disassembly process is relatively cumbersome, which affects the maintenance efficiency of the pressure gauge.

[0042] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A diaphragm pressure gauge that is easy to assemble and disassemble, comprising a first housing (1) and a second housing (2), wherein the first housing (1) is arranged on top of the second housing (2), and is characterized in that: A fixed shell (3) is provided on the top of the first shell (1), a plurality of fixing devices (4) are evenly distributed on the bottom of the inner cavity of the fixed shell (3), a control device (5) used in conjunction with the fixing device (4) is provided on the top of the inner cavity of the fixed shell (3), a plurality of fixing grooves (6) used in conjunction with the fixing device (4) are evenly distributed on the curved surface of the second shell (2), a plurality of positioning columns (7) are evenly distributed on the bottom of the first shell (1), and a plurality of positioning grooves (8) used in conjunction with the positioning columns (7) are evenly distributed on the top of the second shell (2).

2. The diaphragm pressure gauge that is easy to assemble and disassemble according to claim 1, characterized in that: The fixing device (4) comprises a movable column (401), the top and bottom of the movable column (401) are respectively provided with a limit block (402) and a push plate (403), and the bottom of the push plate (403) is provided with a fixing piece (404).

3. The diaphragm pressure gauge that is easy to assemble and disassemble according to claim 1, characterized in that: The control device (5) comprises a control switch (501), a rotating column (502) is provided at the bottom of the control switch (501), a rotating disk (503) and a return torsion spring (504) are respectively sleeved on the top and bottom of the curved surface of the rotating column (502), and a plurality of travel through holes (505) are evenly distributed on the bottom of the rotating disk (503).

4. The diaphragm pressure gauge that is easy to assemble and disassemble according to claim 1, characterized in that: The top of the positioning column (7) is fixedly connected to the first shell (1), and the bottom of the positioning column (7) passes through the positioning groove (8) and extends to the inner cavity of the positioning groove (8) to contact the inner wall of the positioning groove (8).

5. The diaphragm pressure gauge that is easy to assemble and disassemble according to claim 1, characterized in that: The bottom of the fixed shell (3) is fixedly connected to the first shell (1), the top of the fixed shell (3) is provided with a first through hole (9) for use with the rotating column (502), and the curved surface of the fixed shell (3) is evenly distributed with a plurality of second through holes (10) for use with the push plate (403).

6. The diaphragm pressure gauge that is easy to assemble and disassemble according to claim 2, characterized in that: The bottom of the movable column (401) is fixedly connected to the push plate (403), the top of the movable column (401) passes through the travel through hole (505), extends to the outside of the travel through hole (505) and is fixedly connected to the limit block (402), the curved surface of the movable column (401) contacts the inner wall of the travel through hole (505), the side of the push plate (403) away from the movable column (401) passes through the second through hole (10), extends to the outside of the second through hole (10) and is fixedly connected to the fixing member (404), and the side of the fixing member (404) close to the fixing groove (6) passes through the fixing groove (6), extends to the inner cavity of the fixing groove (6) and contacts the inner wall of the fixing groove (6).

7. The diaphragm pressure gauge that is easy to assemble and disassemble according to claim 3, characterized in that: The top of the rotating column (502) is fixedly connected to the control switch (501), the bottom of the rotating column (502) passes through the first through hole (9), extends to the outside of the first through hole (9), and is rotatably connected to the first housing (1) via a rotating shaft, the rotating disk (503) is fixedly connected to the rotating column (502), and the top and bottom of the return torsion spring (504) are fixedly connected to the rotating disk (503) and the first housing (1), respectively.

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