Detachable pressure sensor

Abstract

The utility model discloses a detachable pressure sensor, which relates to the technical field of pressure sensors and comprises a pressure sensor body, a protective cover is arranged outside the pressure sensor body, a fixing plate is arranged at the bottom of the protective cover, and fixing mechanisms are arranged at the front end and the rear end of the fixing plate respectively. The two fixing mechanisms are arranged in a mirror image mode, the opposite faces of the lower sides of the fixing mechanisms penetrate into the fixing plate, the left end and the right end of the fixing plate are fixedly connected with mounting plates correspondingly, bolts are arranged at the tops of the mounting plates, and the bottoms of the bolts penetrate through the upper ends and the lower ends of the mounting plates. According to the utility model, through operating the fixing mechanism, the front L-shaped plate and the rear L-shaped plate in the fixing mechanism are pulled out in opposite directions, so that the upper surfaces of the L-shaped plates are driven to be separated from the positioning plate in the protective cover, and then the protective cover can be pulled out from the fixing plate and is convenient to disassemble, and the pressure sensor and the fixing device do not need to be completely disassembled. And the pressure sensor can be conveniently disassembled.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure sensors, in particular to a detachable pressure sensor. Background Art

[0002] A pressure sensor is a device or apparatus that can sense pressure signals and convert them into usable output electrical signals according to certain rules. Pressure sensors are the most commonly used sensors in industrial practice and are widely used in various industrial automation environments, involving water conservancy and hydropower, railway transportation, intelligent buildings, production automation, aerospace, military industry, petrochemicals, oil wells, electricity, ships, machine tools, pipelines and many other industries. The existing technology has the following problems:

[0003] Existing pressure sensors are all installed at the testing site through fixing devices, and the fixing devices are mostly welded to the pressure sensors. When the pressure sensor needs to be disassembled, the pressure sensor and the fixing devices need to be removed completely, which is inconvenient, time-consuming and labor-intensive. Secondly, when installing the pressure sensor, there is a lack of positioning devices, which makes it impossible to install the pressure sensor quickly. Utility Model Content

[0004] The utility model provides a detachable pressure sensor to solve the problems existing in the above background technology.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A detachable pressure sensor includes a pressure sensor, a protective cover is provided on the outside of the pressure sensor, a fixing plate is provided at the bottom of the protective cover, fixing mechanisms are respectively provided at the front and rear ends of the fixing plate, the two fixing mechanisms are mirror-imaged and the lower opposite surfaces both penetrate into the interior of the fixing plate, the left and right ends of the fixing plate are respectively fixedly connected to mounting plates, a bolt is provided on the top of the mounting plate, and the bottom of the bolt penetrates the upper and lower ends of the mounting plate.

[0007] A further improvement of the technical solution of the present utility model is that: the fixing mechanism includes an L-shaped plate, the end of the L-shaped plate close to the fixed plate in the vertical direction is fixedly connected to the movable plate, the end of the movable plate away from the L-shaped plate is fixedly connected to the connecting rod, the outer wall of the connecting rod is sleeved with a fixing tube, the outer wall of the connecting rod is sleeved with a return spring, an anti-slip pad is provided at the bottom of the horizontal surface of the L-shaped plate, and the end of the L-shaped plate away from the movable plate is fixedly connected to a handle.

[0008] A further improvement of the technical solution of the present utility model is that one end of the return spring is fixedly connected to the end of the movable plate away from the L-shaped plate, and the other end of the return spring is fixedly connected to one end of the fixed tube.

[0009] A further improvement of the technical solution of the present utility model is that: movable grooves are respectively opened at the front and rear ends of the outer wall of the fixed plate, the two fixed tubes are arranged inside the movable grooves and the opposite surfaces are fixedly connected to the inner walls of the movable grooves, and the outer walls of the two movable plates are respectively arranged inside the two movable grooves.

[0010] A further improvement of the technical solution of the present invention is that: the outer wall of the movable plate is fixedly connected with sliders at the upper and lower ends close to the connecting rod, and the inner wall of the movable groove is provided with limiting sliding grooves at the upper and lower sides away from the fixed tube, and the outer wall of the slider is slidably connected to the inner wall of the limiting sliding groove.

[0011] A further improvement of the technical solution of the present utility model is that: the protective cover includes a fixed shell, a connecting tube, a connecting shell and a threaded cover, the top of the outer wall of the connecting tube is provided with a thread, the top of the threaded cover is provided with a connecting hole that passes through from top to bottom, the front and rear ends of the fixed shell are respectively fixedly connected with positioning plates, the connecting shell is fixedly connected to the right end of the fixed shell, the right end of the connecting shell is provided with a wiring groove that passes through inside and outside, and the top of the fixed shell is fixedly connected to the bottom of the connecting tube.

[0012] A further improvement of the technical solution of the present utility model is that: the top of the fixed plate is fixedly connected to a convex clamping plate 1 near the outer wall of the fixed shell, the top of the convex clamping plate 1 is fixedly connected to a convex clamping plate 2 near the inner wall of the fixed shell, and the bottom of the horizontal surface of the L-shaped plate overlaps with the top of the positioning plate.

[0013] A further improvement of the technical solution of the present utility model is that: the top of the outer wall of the connecting cylinder is threadedly connected to the inner wall of the threaded cover, the top outer wall of the pressure sensor passes through the interior of the threaded cover through a connecting hole, the interiors of the fixed shell, the connecting cylinder and the connecting shell are interconnected, the wiring terminals of the pressure sensor pass through the interior of the wiring slot, and the bottom of the outer walls of the fixed shell and the connecting shell are clamped between the convex clamping plate 1 and the convex clamping plate 2.

[0014] Due to the adoption of the above technical solution, the present invention has achieved the following technical advancements compared to the prior art:

[0015] 1. The utility model provides a detachable pressure sensor, which adopts the cooperation between a protective cover, a fixing plate and a fixing mechanism. By operating the fixing mechanism and pulling out the front and rear L-shaped plates in the fixing mechanism in opposite directions, the upper surface of the L-shaped plate is driven to separate from the positioning plate in the protective cover. Then the protective cover can be pulled out from the fixing plate, which is convenient for disassembly. This solves the problem that the existing pressure sensors are all installed in the detection site by fixing devices, and most of the fixing devices are welded to the pressure sensors. When the pressure sensor needs to be disassembled, it is necessary to remove both the pressure sensor and the fixing device, which is relatively inconvenient, time-consuming and labor-intensive. The utility model achieves the beneficial effect of not needing to remove both the pressure sensor and the fixing device, and facilitating the disassembly of the pressure sensor.

[0016] 2. The utility model provides a detachable pressure sensor, which adopts the cooperation between the fixing plate and the protective cover. By installing the pressure sensor in the protective cover and snapping the bottom of the fixing shell and the connecting shell in the protective cover between the convex clamping plate 1 and the convex clamping plate 2, the protective cover is positioned, which solves the problem of lack of a positioning device when installing the pressure sensor, thereby making it impossible to quickly install the pressure sensor, and achieves the beneficial effect of facilitating and quickly installing the protective cover on the fixing plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the detachable pressure sensor of the present utility model;

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the fixing mechanism of the present utility model;

[0019] Figure 3 It is a partially enlarged schematic diagram of the three-dimensional structure A of the present utility model;

[0020] Figure 4 Schematic diagram of the three-dimensional structure of the protective cover and the fixing plate of the utility model

[0021] Figure 5 It is a schematic cross-sectional view of the three-dimensional structure of the detachable pressure sensor of the present invention.

[0022] In the figure: 1. pressure sensor; 2. protective cover; 21. fixed shell; 22. connecting cylinder; 220. thread; 23. connecting shell; 230. wiring slot; 24. threaded cover; 240. connecting hole; 25. positioning plate; 3. fixed plate; 301. movable slot; 3010. limiting slide slot; 31. convex clamping plate 1; 32. convex clamping plate 2; 4. fixing mechanism; 41. L-shaped plate; 42. movable plate; 421. slider; 43. connecting rod; 44. fixed tube; 45. reset spring; 46. anti-slip pad; 47. handle; 5. mounting plate; 6. bolt. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods:

[0024] like Figure 1 As shown, the utility model provides a detachable pressure sensor, including a pressure sensor 1, a protective cover 2 is provided on the outside of the pressure sensor 1, a fixing plate 3 is provided at the bottom of the protective cover 2, and fixing mechanisms 4 are respectively provided at the front and rear ends of the fixing plate 3. The two fixing mechanisms 4 are mirror-imaged and the lower opposite surfaces both penetrate into the interior of the fixing plate 3. The left and right ends of the fixing plate 3 are respectively fixedly connected to mounting plates 5, and a bolt 6 is provided on the top of the mounting plate 5, and the bottom of the bolt 6 penetrates the upper and lower ends of the mounting plate 5;

[0025] A protective cover 2, a fixing plate 3, a fixing mechanism 4, a mounting plate 5 and bolts 6 are set. The fixing plate 3 is installed and fixed on the test bench by using the mounting plate 5 and the bolts 6. The pressure sensor 1 is placed inside the protective cover 2, and the protective cover 2 can be positioned and fixed on the fixing plate 3 by operating the fixing mechanism 4. Since the fixing plate 3 and the protective cover 2 are two parts, it is not necessary to remove the pressure sensor and the fixing plate 3 completely when disassembling the pressure sensor 1.

[0026] like Figure 2-3 As shown, the utility model provides a technical solution for a detachable pressure sensor: the fixing mechanism 4 includes an L-shaped plate 41, one end of the L-shaped plate 41 close to the fixed plate 3 in the vertical direction is fixedly connected to a movable plate 42, the end of the movable plate 42 away from the L-shaped plate 41 is fixedly connected to a connecting rod 43, the outer wall of the connecting rod 43 is sleeved with a fixing tube 44, the outer wall of the connecting rod 43 is sleeved with a return spring 45, an anti-slip pad 46 is provided at the bottom of the transverse surface of the L-shaped plate 41, the end of the L-shaped plate 41 away from the movable plate 42 is fixedly connected to a handle 47, one end of the return spring 45 is fixedly connected to the end of the movable plate 42 away from the L-shaped plate 41, and the other end of the return spring 45 is fixedly connected to one end of the fixed tube 44. By utilizing the elasticity of the return spring 45, The movable plate 42 is reset and moved along the movable groove 301. The movable grooves 301 are respectively provided at the front and rear ends of the outer wall of the fixed plate 3. The two fixed tubes 44 are arranged inside the movable groove 301 and the opposite surfaces are fixedly connected to the inner wall of the movable groove 301. The outer walls of the two movable plates 42 are respectively arranged inside the two movable grooves 301. The upper and lower ends of the outer walls of the movable plate 42 near the connecting rod 43 are respectively fixedly connected with sliders 421. The upper and lower sides of the inner wall of the movable groove 301 away from the fixed tube 44 are respectively provided with limiting grooves 3010. The outer wall of the slider 421 is slidably connected to the inner wall of the limiting groove 3010. The slider 421 slides inside the limiting groove 3010 to limit the moving trajectory of the movable plate 42.

[0027] like Figure 4 As shown, the utility model provides a detachable pressure sensor technical solution: the protective cover 2 includes a fixed shell 21, a connecting tube 22, a connecting shell 23 and a threaded cover 24. The top of the outer wall of the connecting tube 22 is provided with a thread 220. The top of the threaded cover 24 is provided with a connecting hole 240 that passes through the top and bottom. The front and rear ends of the fixed shell 21 are respectively fixedly connected with a positioning plate 25. The connecting shell 23 is fixedly connected to the right end of the fixed shell 21. The right end of the connecting shell 23 is provided with a wiring groove 230 that passes through the inside and outside. The top of the fixed shell 21 is fixedly connected to the bottom of the connecting tube 22. 1. The connecting tube 22, the connecting shell 23 and the threaded cover 24 wrap the outside of the pressure sensor 1, protecting the pressure sensor 1 while not hindering the connection between the pressure sensor 1 and the external connector. The top of the fixing plate 3 is fixedly connected to the outer wall of the fixing shell 21 with a convex clamping plate 1 31, and the top of the convex clamping plate 1 31 is fixedly connected to the inner wall of the fixing shell 21 with a convex clamping plate 2 32. The bottom of the horizontal surface of the L-shaped plate 41 overlaps with the top of the positioning plate 25. The protective cover 2 is fixed to the fixing plate 3 by clamping the lower surface of the L-shaped plate 41 on the upper side of the positioning plate 25.

[0028] like Figure 5 As shown, the utility model provides a technical solution for a detachable pressure sensor: the top of the outer wall of the connecting cylinder 22 is threadedly connected to the inner wall of the threaded cover 24, the top outer wall of the pressure sensor 1 passes through the interior of the threaded cover 24 through the connecting hole 240, the interiors of the fixed shell 21, the connecting cylinder 22 and the connecting shell 23 are interconnected, the wiring terminal of the pressure sensor 1 passes through the interior of the wiring groove 230, the outer wall bottoms of the fixed shell 21 and the connecting shell 23 are clamped between the convex clamping plate 1 31 and the convex clamping plate 2 32, and the protective cover 2 is quickly positioned and installed by inserting the lower ends of the fixed shell 21 and the connecting shell 23 between the convex clamping plate 1 31 and the convex clamping plate 2 32.

[0029] The working principle of this detachable pressure sensor is described in detail below.

[0030] like Figure 1-5As shown, when disassembling the pressure sensor 1, first, remove the connector and connecting wire on the pressure sensor 1, and then the user pulls the front and rear handles 47 in opposite directions respectively, so that the movable plate 42 is driven to move outward along the movable groove 301 through the L-shaped plate 41, so that the connecting rod 43 is driven to move outward along the inside of the fixed tube 44 and stretch the reset spring 45. When the movable plate 42 moves, the slider 421 is driven to slide along the inner wall of the limiting slide groove 3010, so that the anti-slip pad 46 on the L-shaped plate 41 is separated from the upper end of the positioning plate 25, and then the protective cover 2 is pulled upward to disassemble and remove the pressure sensor 1 inside the protective cover 2. When installing the pressure sensor 1, the mounting plate 5 and the bolt 6 are cooperated to install it. The fixing plate 3 is installed and fixed on the test bench, and the pressure sensor 1 is inserted into the connecting tube 22 through the fixing shell 21, and then the threaded cover 24 is screwed on the upper end of the connecting tube 22 and fixed, so that the connecting end of the pressure sensor 1 is inserted through the connecting hole 240, and the connecting wire end of the pressure sensor 1 is inserted from the wiring groove 230 through the connecting shell 23, and then the bottom of the fixing shell 21 and the connecting shell 23 are respectively inserted between the convex clamping plate 1 31 and the convex clamping plate 2 32, and the outer walls of the fixing shell 21 and the connecting shell 23 are positioned, and then the elasticity of the reset spring 45 is used to slide the lower surfaces of the front and rear L-shaped plates 41 to the upper sides of the two positioning plates 25, so that the anti-slip pad 46 is squeezed and fits on the surface of the positioning plate 25, thereby increasing the stability of the connection.

[0031] The above generally describes the present invention in detail. However, it is obvious to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A detachable pressure sensor, comprising a pressure sensor (1), characterized in that: A protective cover (2) is arranged outside the pressure sensor (1), a fixing plate (3) is arranged at the bottom of the protective cover (2), fixing mechanisms (4) are respectively arranged at the front and rear ends of the fixing plate (3), the two fixing mechanisms (4) are arranged in a mirror image and the lower opposite surfaces both penetrate into the interior of the fixing plate (3), the left and right ends of the fixing plate (3) are respectively fixedly connected with mounting plates (5), the top of the mounting plate (5) is provided with bolts (6), and the bottom of the bolts (6) penetrates the upper and lower ends of the mounting plate (5).

2. A detachable pressure sensor according to claim 1, characterized in that: The fixing mechanism (4) comprises an L-shaped plate (41), one end of the L-shaped plate (41) close to the fixing plate (3) in the vertical direction is fixedly connected to a movable plate (42), one end of the movable plate (42) away from the L-shaped plate (41) is fixedly connected to a connecting rod (43), the outer wall of the connecting rod (43) is sleeved with a fixing tube (44), the outer wall of the connecting rod (43) is sleeved with a return spring (45), an anti-slip pad (46) is provided at the bottom of the transverse surface of the L-shaped plate (41), and the end of the L-shaped plate (41) away from the movable plate (42) is fixedly connected to a handle (47).

3. A detachable pressure sensor according to claim 2, characterized in that: One end of the return spring (45) is fixedly connected to one end of the movable plate (42) away from the L-shaped plate (41), and the other end of the return spring (45) is fixedly connected to one end of the fixed tube (44).

4. A detachable pressure sensor according to claim 3, characterized in that: The outer wall of the fixed plate (3) is provided with movable grooves (301) at the front and rear ends respectively, the two fixed tubes (44) are arranged inside the movable grooves (301) and the opposite surfaces are fixedly connected to the inner wall of the movable grooves (301), and the outer walls of the two movable plates (42) are respectively arranged inside the two movable grooves (301).

5. A detachable pressure sensor according to claim 4, characterized in that: The outer wall of the movable plate (42) is fixedly connected with sliders (421) at the upper and lower ends close to the connecting rod (43), and the inner wall of the movable groove (301) is provided with limiting sliding grooves (3010) at the upper and lower sides away from the fixed tube (44), and the outer wall of the slider (421) is slidably connected with the inner wall of the limiting sliding groove (3010).

6. The detachable pressure sensor according to claim 1, characterized in that: The protective cover (2) comprises a fixed shell (21), a connecting tube (22), a connecting shell (23) and a threaded cover (24); the top of the outer wall of the connecting tube (22) is provided with a thread (220); the top of the threaded cover (24) is provided with a connecting hole (240) which passes through the top and bottom; the front and rear ends of the fixed shell (21) are respectively fixedly connected with positioning plates (25); the connecting shell (23) is fixedly connected to the right end of the fixed shell (21); the right end of the connecting shell (23) is provided with a wiring groove (230) which passes through the inside and outside; the top of the fixed shell (21) is fixedly connected to the bottom of the connecting tube (22).

7. The detachable pressure sensor according to claim 2, characterized in that: The top of the fixing plate (3) is fixedly connected to a convex clamping plate 1 (31) near the outer wall of the fixing shell (21), the top of the convex clamping plate 1 (31) is fixedly connected to a convex clamping plate 2 (32) near the inner wall of the fixing shell (21), and the bottom of the transverse surface of the L-shaped plate (41) overlaps the top of the positioning plate (25).

8. The detachable pressure sensor according to claim 6, characterized in that: The top of the outer wall of the connecting tube (22) is threadedly connected to the inner wall of the threaded cover (24); the top outer wall of the pressure sensor (1) passes through the interior of the threaded cover (24) through a connecting hole (240); the interiors of the fixed shell (21), the connecting tube (22) and the connecting shell (23) are interconnected; the wiring terminal of the pressure sensor (1) passes through the interior of the wiring slot (230); and the bottom of the outer walls of the fixed shell (21) and the connecting shell (23) are clamped between the convex clamping plate 1 (31) and the convex clamping plate 2 (32).

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