Anti-corrosion pressure instrument

Abstract

The utility model discloses an anti-corrosion pressure instrument which comprises a pipeline, the top face of the pipeline is fixedly communicated with a connecting pipe, an annular column is embedded in the connecting pipe, the center of the top of the annular column is fixedly connected with a pressure instrument body, and a protective cover is installed on the top face of the connecting pipe. Two limiting boxes are symmetrically installed on the outer side of the connecting pipe, by arranging a threaded rod, a threaded sleeve, a connecting plate, an extrusion block, a spring, an insertion rod and other devices, the threaded rod is driven to rotate by screwing a rotary knob, then the threaded sleeve pushes the connecting rod and the extrusion block to slide, then the annular column is fixed, the pressure instrument body is detachable, and the practicability is high. And meanwhile, an inserting rod is clamped in a connecting plate under the acting force of a spring, so that the positions of the connecting plate and an extrusion block are fixed, when large impact force exists in the pipeline, the positions of the connecting plate and the extrusion block cannot be loosened, and the purpose of avoiding leakage of the device is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure instruments, in particular to an anti-corrosion pressure instrument. Background Art

[0002] A pressure instrument is a device used to measure pressure. It can convert the pressure value into an intuitive display, such as pointer indication, digital presentation, etc.

[0003] In a Chinese utility model patent, such as the utility model of CN221325765U, an anti-corrosion and shock-resistant pressure instrument that is easy to disassemble is disclosed, which relates to the technical field of the pressure instrument body. By embedding a circular column into the connecting pipe, and then rotating the turntable to drive the rotating rod to rotate, the rotating rod rotates to drive the second gear to rotate, the second gear rotates to drive the first gear to rotate, the first gear rotates to drive the screw rod to rotate, and the screw rod rotates to drive the extrusion block to move through the limiting block to extrude inside the triangular ring groove, which can play the role of making the bottom of the circular column and the bottom of the circular plate respectively extrude the first sealing ring and the second sealing ring, so as to achieve the effect of facilitating the installation or disassembly of the pressure instrument body.

[0004] When the above technology is used, the extrusion block is driven to move by the rotation of the screw rod. However, when the valve is quickly closed, the water flow continues to flow forward due to inertia but is blocked by the valve, resulting in a rapid increase in pressure. On the contrary, when the valve is quickly opened, the originally static water suddenly accelerates, creating a low-pressure area locally, thus generating a water hammer effect. The water hammer effect will generate a huge pressure impact, which may cause the thread of the screw rod to become loose, and then the extrusion block cannot fit tightly with the circular column, resulting in insufficient sealing of the circular column and leakage. Content of the Utility Model

[0005] The purpose of the utility model is to solve the problems in the background art, and an anti-corrosion pressure instrument is proposed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] An anti-corrosion pressure instrument, including a pipeline, a connecting pipe is fixedly connected and communicated with the top surface of the pipeline, a circular column is embedded in the connecting pipe, the top center of the circular column is fixedly connected with a pressure instrument body, a protective cover is installed on the top surface of the connecting pipe, two limiting boxes are symmetrically installed on the outer side of the connecting pipe, a threaded sleeve is slidably connected in each limiting box, each limiting box drives the threaded sleeve to slide through a driving mechanism, a plurality of connecting plates are fixedly installed on the outer side of each threaded sleeve with an extrusion block, and each extrusion block is clamped in the circular column, the top surface of each limiting box is elastically connected with a plug rod, and each plug rod penetrates through the limiting box and is clamped in the corresponding connecting plate.

[0008] Preferably, the driving mechanism includes a threaded rod, and each threaded rod is rotatably connected in the limit box, and each threaded rod is threadedly connected to a corresponding threaded sleeve. One end of the threaded rod penetrates through the limit box and is equipped with a knob.

[0009] Preferably, a square cavity is formed in each limit box, and each side surface of each threaded sleeve is in contact with the inner wall of the square cavity.

[0010] Preferably, a baffle is fixedly installed at one end of each threaded rod away from the knob, and the diameter length of the baffle is greater than the diameter length of the threaded rod.

[0011] Preferably, a fixing frame is fixedly installed on the top surface of each limit box, and each fixing frame is symmetrically slidably connected in the fixing frame. A round plate is fixedly installed on each of the inserting rods, and a spring is jointly installed between the bottom surface of each round plate and the top surface of the fixing frame.

[0012] Preferably, a handle is jointly installed on the top surfaces of multiple round plates, and each spring is sleeved on the outer side of the inserting rod.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. By setting devices such as threaded rods, threaded sleeves, connecting plates, extrusion blocks, springs, and inserting rods, the present utility model realizes driving the threaded rod to rotate by turning the knob, and then pushing the connecting rod and the extrusion block to slide through the threaded sleeve, thereby fixing the circular column, realizing the detachable of the pressure gauge body. At the same time, under the action of the spring, the inserting rod is clamped in the connecting plate, thereby fixing the positions of the connecting plate and the extrusion block. When there is a large impact force in the pipeline, the positions of the connecting plate and the extrusion block will not be loosened, thereby avoiding the purpose of device leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of an anti-corrosion pressure gauge proposed by the present utility model;

[0016] Figure 2 is a cross-sectional view of the protective cover of an anti-corrosion pressure gauge proposed by the present utility model;

[0017] Figure 3 is a cross-sectional view of the limit box of an anti-corrosion pressure gauge proposed by the present utility model;

[0018] Figure 4 is a schematic diagram of the installation structure of the inserting rod of an anti-corrosion pressure gauge proposed by the present utility model.

[0019] In the figure: 1 pipeline, 2 connecting pipe, 3 protective cover, 4 limiting box, 5 pressure gauge body, 6 circular column, 7 extrusion block, 8 knob, 9 threaded rod, 10 threaded sleeve, 11 connecting plate, 12 baffle plate, 13 fixing frame, 14 insertion rod, 15 handle, 16 circular plate, 17 spring. Specific implementation manner

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0021] Refer to Figures 1-4 , an anti-corrosion pressure gauge, including a pipeline 1, the top surface of the pipeline 1 is fixedly connected and communicated with a connecting pipe 2, a circular column 6 is embedded in the connecting pipe 2, the top center of the circular column 6 is fixedly connected and connected with a pressure gauge body 5, a protective cover 3 is installed on the top surface of the connecting pipe 2, and the protective cover 3 is made of a transparent material. Two limiting boxes 4 are symmetrically installed on the outer side of the connecting pipe 2. A threaded sleeve 10 is slidably connected in each limiting box 4. It should be noted that a triangular ring groove is opened in the circular column 6, and the pressure gauge body 5 can be conveniently disassembled by tightly fitting the extrusion block 7 in the triangular ring groove;

[0022] Each limiting box 4 drives the threaded sleeve 10 to slide through a driving mechanism. The driving mechanism includes a threaded rod 9. Each threaded rod 9 is rotatably connected in the limiting box 4, and each threaded rod 9 is threadedly connected to the corresponding threaded sleeve 10. One end of the threaded rod 9 penetrates through the limiting box 4 and is installed with a knob 8. A square cavity is opened in each limiting box 4, and each side surface of each threaded sleeve 10 is attached to the inner wall of the square cavity. A baffle plate 12 is fixedly installed at one end of each threaded rod 9 away from the knob 8, and the diameter length of the baffle plate 12 is greater than the diameter length of the threaded rod 9. It should be noted that the threaded sleeve 10 is limited by the square cavity so that it cannot rotate. At the same time, the threaded sleeve 10 is prevented from detaching from the threaded rod 9 by the baffle plate 12;

[0023] On the outer side of each threaded sleeve 10, a plurality of connecting plates 11 are fixedly installed with extrusion blocks 7, and each extrusion block 7 is clamped in the annular column 6. The top surface of each limiting box 4 is elastically connected with a plug rod 14, and each plug rod 14 penetrates through the limiting box 4 and is clamped in the corresponding connecting plate 11. The top surface of each limiting box 4 is fixedly installed with a fixing frame 13, and each fixing frame 13 is symmetrically and slidably connected in the fixing frame 13. A circular plate 16 is fixedly installed on each plug rod 14. A spring 17 is jointly installed between the bottom surface of each circular plate 16 and the top surface of the fixing frame 13. The top surfaces of a plurality of circular plates 16 are jointly installed with a handle 15. Each spring 17 is sleeved on the outer side of the plug rod 14. It should be noted that through the spring 17, each plug rod 14 can be tightly inserted into the connecting plate 11, so that it cannot move, thereby avoiding the loosening of the extrusion block 7 caused by impact. At the same time, when the extrusion block 7 is tightly attached to the annular column 6, the plug rod 14 corresponds to the hole opened on the connecting plate 11.

[0024] When the present utility model is in use, first lift the handle 15 and pull the plug rod 14 to slide upward. Then, by turning the knob 8, the threaded rod 9 can be driven to rotate. Further, the threaded sleeve 10 can be limited through the square cavity, the threaded sleeve 10 can be driven to slide, and the extrusion block 7 can be pushed through the connecting plate 11 to be clamped in the annular column 6, so as to fix the annular column 6 and the pressure gauge body 5. When disassembly is required, only the knob 8 needs to be rotated in the reverse direction.

[0025] After the extrusion block 7 is clamped in the annular column 6, at this time, the plug rod 14 corresponds to the hole on the connecting plate 11. Then release the handle 15. Under the action of the spring 17, each plug rod 14 is clamped in the connecting plate 11, so as to limit the connecting plate 11 and make it unable to move. Further, when there is a large impact force in the pipeline 1, the extrusion block 7 cannot be loosened, and the leakage of the device can be avoided.

[0026] The above is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present utility model.

Claims

1. A corrosion-resistant pressure instrument, comprising a pipeline (1), characterized in that: The top surface of the pipeline (1) is fixed with a connecting pipe (2) and connected thereto. A circular column (6) is embedded in the connecting pipe (2). A pressure instrument body (5) is fixed and connected to the top center of the circular column (6). A protective cover (3) is installed on the top surface of the connecting pipe (2). Two limit boxes (4) are symmetrically installed on the outer side of the connecting pipe (2). A threaded sleeve (10) is slidably connected in each of the limit boxes (4). Each of the limit boxes (4) drives the threaded sleeve (10) to slide through a driving mechanism. An extrusion block (7) is fixedly installed on the outer side of each of the threaded sleeves (10) through a plurality of connecting plates (11), and each of the extrusion blocks (7) is clamped in the circular column (6). The top surface of each of the limit boxes (4) is elastically connected with an insertion rod (14), and each insertion rod (14) passes through the limit box (4) and is clamped in a corresponding connecting plate (11).

2. The anti-corrosion pressure instrument according to claim 1, characterized in that: The driving mechanism comprises a threaded rod (9), and each threaded rod (9) is rotatably connected in a limit box (4), and each threaded rod (9) is threadedly connected to a threaded sleeve (10) at a corresponding position, and one end of the threaded rod (9) passes through the limit box (4) and is installed with a knob (8).

3. The corrosion-resistant pressure instrument according to claim 2, characterized in that: A square cavity is provided in each of the limit boxes (4), and each side surface of each threaded sleeve (10) fits with the inner wall of the square cavity.

4. The anti-corrosion pressure instrument according to claim 3, characterized in that: A baffle (12) is fixedly mounted on one end of each threaded rod (9) away from the knob (8), and the diameter of the baffle (12) is greater than the diameter of the threaded rod (9).

5. The corrosion-resistant pressure instrument according to claim 4, characterized in that: A fixing frame (13) is fixedly mounted on the top surface of each of the limit boxes (4), and each of the fixing frames (13) is symmetrically slidably connected inside the fixing frame (13). A circular plate (16) is fixedly mounted on the top of each of the insertion rods (14), and a spring (17) is installed on the bottom surface of each of the circular plates (16) and the top surface of the fixing frame (13).

6. The corrosion-resistant pressure instrument according to claim 5, characterized in that: A handle (15) is commonly mounted on the top surfaces of the plurality of circular plates (16), and each of the springs (17) is sleeved on the outside of the insertion rod (14).

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