Pressure gauge calibration device

Abstract

The utility model relates to the technical field of pressure gauge calibration, and provides a pressure gauge calibration device which comprises a bottom plate, two thick pipes are fixedly connected to the top of the outer surface of the bottom plate, first supporting strips are fixedly connected to the outer surfaces of the two thick pipes, second supporting strips are fixedly connected to the outer surfaces of the two thick pipes, and the first supporting strips and the second supporting strips are fixedly connected to the top of the outer surface of the bottom plate. Threaded rods are movably embedded in the two second supporting strips correspondingly, and one ends of the two threaded rods are rotationally connected with movable semicircular blocks through bearings correspondingly. During use, a water suction pump is started through an external power source, then water in the water tank is pumped out through a water suction pipe, and the water in the water tank is pumped out through a water suction pipe; after the water is pumped out, the water is conveyed into the thick pipe through the output pipe, the thick pipe enters the insertion pipe, then the water pressure is detected through the pressure gauge body, and the standard of the quality of the pressure gauge body can be judged through the water pressure display of the pressure gauge body.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure gauge calibration, in particular to a pressure gauge calibration device. Background Art

[0002] Pressure gauges, instruments that use an elastic element as a sensitive component to measure and indicate pressures above ambient pressure, are extremely common and are found in nearly all industrial processes and scientific research fields. They can be found in heating networks, oil and gas transmission, water and gas supply systems, and vehicle repair and maintenance shops. Mechanical pressure gauges are particularly popular in industrial process control and technical measurement due to the high mechanical strength and ease of production of their elastic sensitive elements.

[0003] The existing published patent number is: CN208860525U A pressure gauge calibration platform, including a desktop panel, a detection cabinet is fixedly installed on the top of the desktop panel, the inner cavity of the detection cabinet is fixedly installed with mounting plates at uniform intervals, and the inner cavity of each group of the mounting plates is fixedly installed with an air guide tube, one end of the two adjacent groups of air guide tubes is fixedly connected by a U-shaped tube, and the top of each group of the air guide tubes is evenly and evenly spaced with an integrally formed detection branch pipe, the top of the detection branch pipe is fixedly installed with a pressure gauge interface, and each group of the detection branch pipes is fixedly installed with a manual valve.

[0004] The above scheme installs multiple groups of air guide tubes and installs pressure gauge interfaces of different sizes on each group of air guide tubes, so that the calibration platform can calibrate multiple groups of pressure gauges of different sizes at the same time, avoiding the problems of current pressure gauge detection equipment such as single detection type and small number of single detections. When detecting, gas is used for detection, which is not accurate enough. Because the pressure gauge has a wide range of applications and can also detect water flow and water pressure, the device has a low scope of application when detecting. Utility Model Content

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a pressure gauge calibration device, comprising: a base plate, two thick tubes are fixedly connected to the top of the outer surface of the base plate, the outer surfaces of the two thick tubes are fixedly connected to support bar 1, the outer surfaces of the two thick tubes are fixedly connected to support bar 2, the interiors of the two support bars 2 are movably embedded with threaded rods, one end of the two threaded rods are rotatably connected to movable semicircular blocks through bearings, the outer surfaces of the two support bars 2 are fixedly connected to limiting rods, the two limiting rods are movably embedded in the interiors of the two movable semicircular blocks, the interiors of the two thick tubes are movably embedded with two inserting pipes, and the outer surfaces of the opposite sides of the two inserting pipes are fixedly connected to the pressure gauge body.

[0006] The technical effect of adopting the above-mentioned further scheme is: rotating the threaded rod causes the movable semicircular block to move to one side under the limit of the limit rod. After the movement, the movable semicircular block contacts the surface of the cannula and clamps and fixes the cannula. At this time, the pressure gauge body is connected to the thick tube through the cannula on both sides. The thick tube enters the interior of the cannula and then detects the water pressure through the pressure gauge body. The quality standard of the pressure gauge body can be judged by the water pressure display of the pressure gauge body.

[0007] As a preferred embodiment, the two movable semicircular blocks and the two fixed semicircular blocks are located on both sides of the outer surfaces of the two inserting tubes, and two blocks are fixedly connected to the top of the outer surfaces of the two thick tubes.

[0008] The technical effect of adopting the above further solution is that the cannula can be easily disassembled and installed.

[0009] As a preferred embodiment, a rotating rod is movably embedded in the outer surface of one opposite side of the two blocks, and an anti-leakage plug is fixedly connected to the outer surface of the two rotating rods.

[0010] The technical effect of adopting the above further solution is to prevent water leakage and rust at the water outlet of the thick pipe.

[0011] As a preferred embodiment, the inner diameters of the two anti-leakage plugs are small enough to match the diameters of the water outlet holes of the two thick tubes, and the two anti-leakage plugs are movably connected to the outer surfaces of the opposite sides of the two thick tubes.

[0012] The technical effect of adopting the above further solution is that the anti-leakage plug can completely block the thick pipe.

[0013] As a preferred embodiment, a water tank is fixedly connected to the top of the outer surface of the bottom plate, and a water pump is fixedly connected to the outer surface of the water tank near the bottom.

[0014] The technical effect of adopting the above further solution is that the water inside the water tank can be completely extracted by arranging the water pumping pipe on the outer surface of the water tank near the bottom.

[0015] As a preferred embodiment, a water tank is fixedly connected to the top of the outer surface of the bottom plate, a water pump is fixedly connected to the outer surface of the water tank near its bottom, a water pump is fixedly connected to the top of the outer surface of the bottom plate, the water pump is fixedly connected to the input end of the water pump, the output end of the water pump is fixedly connected to an output pipe, and the output pipe is fixedly connected to the outer surface of one of the thick pipes.

[0016] The technical effect of adopting the above further solution is that the water transported by the water pump has a certain water pressure, which is convenient for the pressure gauge body to detect.

[0017] As a preferred embodiment, a recovery pipe is fixedly connected to an additional surface of another thick pipe, and one end of the recovery pipe away from the thick pipe is fixedly connected to the outer surface of the water tank near the top thereof.

[0018] The technical effect of adopting the above further solution is: due to the pressure inside the water, the water enters the inside of the recovery pipe through the water pressure, and is transported back to the inside of the water tank through the recovery pipe, thus realizing the circulation of water.

[0019] Compared with the prior art, the advantages and positive effects of the present invention are:

[0020] 1. When using the utility model, after picking up the pressure gauge body, align the cannulae on both sides with the middle of the two fixed semicircular blocks and the movable semicircular block, then rotate the threaded rod to move the movable semicircular block to one side under the limit of the limit rod. After the movement, the movable semicircular block contacts the surface of the cannula and clamps the cannula. At this time, the pressure gauge body is connected to the thick pipe through the cannulae on both sides, and the water pump is started by an external power supply and then the water inside the water tank is extracted through the water pumping pipe. After the extraction, the water is transported to the inside of the thick pipe through the output pipe. The thick pipe enters the inside of the cannula and then the water pressure is detected through the pressure gauge body. The quality of the pressure gauge body can be judged by the water pressure display of the pressure gauge body.

[0021] 2. When the utility model is in use, water enters the interior of the thick tube again through the insert tube at the other end. Due to the pressure inside the water, the water enters the interior of the recovery tube through the water pressure, and returns to the interior of the water tank again through the transportation of the recovery tube, so that the water is circulated. At the same time, the threaded rod is rotated in the opposite direction so that the movable semicircular block moves in the opposite direction of the insert tube under the limit of the limit rod, and the movable semicircular block is detached from the outer surface of the insert tube. At this time, the pressure gauge body can be removed from the interior of the two thick tubes, and the whole test process is completed. The leak-proof plug is rotated in a transverse semicircular manner around the interior of the two blocks by the rotating rod. After rotation, the leak-proof plug is stuck in the interior of the thick tube. The size of the leak-proof plug matches the size of the thick tube to prevent rust at the interface between the thick tube and the insert tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The utility model provides a schematic diagram of the three-dimensional structure of a pressure gauge calibration device;

[0023] Figure 2 This is a schematic diagram of the enlarged structure of point A of a pressure gauge calibration device proposed in the utility model;

[0024] Figure 3 The utility model provides a side structural diagram of a pressure gauge calibration device;

[0025] Figure 4The present invention provides a schematic diagram of the enlarged structure of position B of a pressure gauge calibration device.

[0026] Legend: 101, bottom plate; 102, thick pipe; 103, block; 104, rotating rod; 105, anti-leakage plug; 106, fixed semicircular block; 107, support bar 1; 108, support bar 2; 109, threaded rod; 110, movable semicircular block; 111, limit rod; 112, insert tube; 113, pressure gauge body; 114, water tank; 115, water pump; 116, water pipe; 117, output pipe; 118, recovery pipe. DETAILED DESCRIPTION

[0027] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0029] See also Figure 1-4 The utility model provides a pressure gauge calibration device, including: a bottom plate 101, two thick tubes 102 are fixedly connected to the top of the outer surface of the bottom plate 101, the outer surfaces of the two thick tubes 102 are fixedly connected to a support bar 107, the outer surfaces of the two thick tubes 102 are fixedly connected to a support bar 2 108, the interiors of the two support bars 108 are movably embedded with threaded rods 109, one end of the two threaded rods 109 is rotatably connected to a movable semicircular block 110 through a bearing, the outer surfaces of the two support bars 108 are fixedly connected to a limiting rod 111, the two limiting rods 111 are movably embedded in the interiors of the two movable semicircular blocks 110, and the two thick tubes 102 are fixedly connected to the top of the bottom plate 101, and the two limiting rods 111 are movably embedded in the interiors of the two movable semicircular blocks 110. Two cannulas 112 are movably embedded inside, and a pressure gauge body 113 is fixedly connected to the outer surface of the opposite side of the two cannulas 112. The rotating threaded rod 109 moves the movable semicircular block 110 to one side under the limit of the limit rod 111. After the movement, the movable semicircular block 110 contacts the surface of the cannulas 112 and clamps the cannulas 112. At this time, the pressure gauge body 113 is connected to the thick tube 102 through the cannulas 112 on both sides. The thick tube 102 enters the interior of the cannulas 112 and then detects the water pressure through the pressure gauge body 113. The quality of the pressure gauge body 113 can be judged by the water pressure display of the pressure gauge body 113.

[0030] like Figure 1-4As shown, the two movable semicircular blocks 110 and the two fixed semicircular blocks 106 are located on both sides of the outer surface of the two inserting tubes 112. The top of the outer surface of the two thick tubes 102 is fixedly connected to two blocks 103, and the inserting tubes 112 can be easily disassembled and installed.

[0031] like Figure 1-4 As shown, the two movable semicircular blocks 110 and the two fixed semicircular blocks 106 are movably connected to both sides of the outer surface of the two inserting tubes 112, and the top of the outer surface of the two thick tubes 102 are fixedly connected to two blocks 103, and the inserting tubes 112 can be easily disassembled and installed.

[0032] like Figure 1-4 As shown, the inner diameters of the two anti-leakage plugs 105 match the diameters of the water outlets of the two thick tubes 102 , and the two anti-leakage plugs 105 are movably connected to the outer surfaces of the opposite sides of the two thick tubes 102 , and the anti-leakage plugs 105 can completely block the thick tubes 102 .

[0033] like Figure 1-4 As shown, a water tank 114 is fixedly connected to the top of the outer surface of the bottom plate 101, and a water extraction pipe 116 is fixedly connected to the outer surface of the water tank 114 near its bottom. The water extraction pipe 116 is arranged on the outer surface of the water tank 114 near the bottom to completely extract the water inside it.

[0034] like Figure 1-4 As shown, a water tank 114 is fixedly connected to the top of the outer surface of the bottom plate 101, a water pumping pipe 116 is fixedly connected to the outer surface of the water tank 114 near its bottom, a water pump 115 is fixedly connected to the top of the outer surface of the bottom plate 101, the water pumping pipe 116 is fixedly connected to the input end of the water pump 115, the output end of the water pump 115 is fixedly connected to the output pipe 117, the output pipe 117 is fixedly connected to the outer surface of one of the thick pipes 102, and the water transported by the water pump 115 has a certain water pressure, which is convenient for detection by the pressure gauge body 113.

[0035] like Figure 1-4 As shown, the additional surface of another thick tube 102 is fixedly connected to a recovery tube 118, and the end of the recovery tube 118 away from the thick tube 102 is fixedly connected to the outer surface of the water tank 114 near its top. Due to the pressure inside the water, the water enters the interior of the recovery tube 118 through the water pressure, and is transported back to the interior of the water tank 114 through the recovery tube 118, thus realizing the circulation of the water.

[0036] Working principle: When in use, pick up the pressure gauge body 113 and align the cannula 112 on both sides with the middle of the two fixed semicircular blocks 106 and the movable semicircular block 110, then rotate the threaded rod 109 to move the movable semicircular block 110 to one side under the limit of the limit rod 111. After the movement, the movable semicircular block 110 contacts the surface of the cannula 112 and clamps the cannula 112. At this time, the pressure gauge body 113 is connected to the thick pipe 102 through the cannula 112 on both sides. The water is then pumped out of the water tank 114 through the pumping pipe 116, and then the water is transported to the inside of the thick pipe 102 through the output pipe 117. The thick pipe 102 enters the inside of the cannula 112 and then the water pressure is detected by the pressure gauge body 113. The quality of the pressure gauge body 113 can be judged by the water pressure display of the pressure gauge body 113. At the same time, the water enters the inside of the thick pipe 102 again through the cannula 112 at the other end. Due to the pressure inside the water, the water enters the inside of the recovery pipe 118 through the water pressure, and returns to the inside of the water tank 114 through the transportation of the recovery pipe 118. The water is circulated. At the same time, the threaded rod 109 is rotated in the opposite direction so that the movable semicircular block 110 moves in the opposite direction of the cannula 112 under the limit of the limit rod 111. The movable semicircular block 110 is detached from the outer surface of the cannula 112. At this time, the pressure gauge body 113 can be removed from the inside of the two thick pipes 102. , the entire testing process is completed, and the leak-proof plug 105 rotates in a horizontal semicircular manner around the interior of the two blocks 103 through the rotating rod 104. After rotation, the leak-proof plug 105 is stuck in the interior of the thick tube 102. The size of the leak-proof plug 105 matches the size of the thick tube 102. A protruding plug is provided inside the leak-proof plug 105, and the diameter of the protruding plug is equal to the inner diameter of the thick tube 102, so that the leak-proof plug 105 is blocked inside the thick tube 102 to prevent rust at the interface between the thick tube 102 and the cannula 112.

[0037] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A pressure gauge calibration device, characterized in that: include: A bottom plate (101) and a fixed semicircular block (106); two thick tubes (102) are fixedly connected to the top of the outer surface of the bottom plate (101); the outer surfaces of the two thick tubes (102) are fixedly connected to support bars (107); the outer surfaces of the two thick tubes (102) are fixedly connected to support bars (108); threaded rods (109) are movably embedded inside the two support bars (108); one end of the two threaded rods (109) is rotatably connected to a movable semicircular block (110) through a bearing; the outer surfaces of the two support bars (108) are fixedly connected to limit rods (111); the two limit rods (111) are movably embedded inside the two movable semicircular blocks (110); two inserting tubes (112) are movably embedded inside the two thick tubes (102); and the outer surfaces of the opposite sides of the two inserting tubes (112) are fixedly connected to a pressure gauge body (113).

2. A pressure gauge calibration device according to claim 1, characterized in that: The two movable semicircular blocks (110) and the two fixed semicircular blocks (106) are both located on both sides of the outer surface of the two inserting tubes (112), and the top of the outer surface of the two thick tubes (102) are fixedly connected with two blocks (103).

3. A pressure gauge calibration device according to claim 2, characterized in that: A rotating rod (104) is movably embedded in the outer surfaces of the two opposite sides of the two blocks (103), and a leak-proof plug (105) is fixedly connected to the outer surfaces of the two rotating rods (104).

4. A pressure gauge calibration device according to claim 3, characterized in that: The inner diameters of the two anti-leakage plugs (105) match the diameters of the water outlet holes of the two thick tubes (102), and the two anti-leakage plugs (105) are movably connected to the outer surfaces of the opposite sides of the two thick tubes (102).

5. A pressure gauge calibration device according to claim 4, characterized in that: A water tank (114) is fixedly connected to the top of the outer surface of the bottom plate (101), and a water pumping pipe (116) is fixedly connected to the outer surface of the water tank (114) near the bottom thereof.

6. A pressure gauge calibration device according to claim 5, characterized in that: A water pump (115) is fixedly connected to the top of the outer surface of the bottom plate (101); the water pumping pipe (116) is fixedly connected to the input end of the water pump (115); an output pipe (117) is fixedly connected to the output end of the water pump (115); and the output pipe (117) is fixedly connected to the outer surface of one of the thick pipes (102).

7. A pressure gauge calibration device according to claim 6, characterized in that: A recovery pipe (118) is fixedly connected to the outer surface of the other thick pipe (102), and one end of the recovery pipe (118) away from the thick pipe (102) is fixedly connected to the outer surface of the water tank (114) near the top thereof.

Images