Novel pressure gauge movement debugging-free structure

Abstract

The utility model relates to the technical field of pressure gauges, in particular to a novel pressure gauge movement debugging-free structure which comprises a gauge body, a shaft core is rotatably mounted on the gauge body, a pointer is fixedly mounted on the shaft core, a semicircular dial plate is rotatably sleeved on the shaft core, a first balancing weight is fixedly mounted at the left end of the dial plate, and a second balancing weight is fixedly mounted at the right end of the dial plate. The left end of the dial plate is provided with a positioning assembly, the positioning assembly can make the pointer coincide with the zero graduation line of the dial plate, the meter body is fixedly provided with a rectangular cylinder, the rectangular cylinder is internally provided with a pulling assembly used for driving the dial plate to rotate clockwise, the lower end of the rectangular cylinder is provided with an air hole, and the meter body is provided with a sealing plug through an elastic assembly. According to the utility model, through mutual cooperation of the positioning assembly, the first balancing weight, the dial plate, the rectangular cylinder, the pulling assembly and the sealing plug, the pressure gauge can be debugged automatically, so that the pointer points to the zero graduation line of the dial plate, manual adjustment is not needed, and the use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure gauges, in particular to a novel pressure gauge movement free debugging structure. Background Art

[0002] A pressure gauge is an instrument that uses elastic elements as sensitive elements to measure and indicate pressure higher than the ambient pressure. It is widely used. The pressure gauge uses the elastic deformation of the sensitive elements such as the Bourdon tube, diaphragm box and bellows inside the gauge, and then the conversion mechanism in the gauge movement transmits the pressure deformation to the pointer, causing the pointer to rotate to display the pressure. The pressure gauge movement consists of a center gear, sector gear, hairspring, indication adjustment screw, spring tube and connecting rod.

[0003] During the use of the pressure gauge, the elastic coefficient of the spring in the spring tube will change after long-term use, which will cause the pointer to fail to point to the zero scale line when it is reset, resulting in errors in the readings of the pressure gauge. Therefore, before use, the movement needs to be debugged to make the pointer point to the zero scale line. The operation is very troublesome, so a new type of debugging-free pressure gauge is needed. Utility Model Content

[0004] The purpose of the utility model is to solve the following shortcomings in the prior art: the pointer cannot point to the zero scale line when resetting, which leads to errors in the reading of the pressure gauge. Before use, the movement needs to be debugged to make the pointer point to the zero scale line, which is very troublesome. A new pressure gauge movement free debugging structure is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A novel pressure gauge movement free debugging structure comprises a gauge body, an air intake connecting pipe is fixedly connected to the lower part of the gauge body, and a valve is installed on the air intake connecting pipe;

[0007] The watch body is rotatably mounted with an axis core, the axis core is fixedly mounted with a pointer, the axis core is rotatably sleeved with a semicircular dial, the left end of the dial is fixedly mounted with a first counterweight, the left end of the dial is provided with a positioning assembly, the positioning assembly allows the pointer to coincide with the zero scale line of the dial;

[0008] A rectangular tube is fixedly mounted on the watch body, a pulling assembly for driving the dial to rotate clockwise is arranged inside the rectangular tube, an air hole is opened at the lower end of the rectangular tube, a sealing plug is mounted on the watch body via an elastic assembly, and one end of the sealing plug is inserted into the air hole.

[0009] Preferably, the positioning assembly comprises a stopper fixedly mounted on the dial and a push rod fixedly mounted on the pointer, and one end of the push rod is in contact with the stopper.

[0010] Preferably, the pulling assembly includes a moving plate vertically slidably installed in a rectangular tube, a first pull rope fixedly installed on the upper surface of the moving plate, and a second counterweight block fixedly installed on the lower surface of the moving plate, one end of the first pull rope away from the moving plate is fixedly connected to the right end of the dial, and the weight of the first counterweight block is less than the weight of the second counterweight block.

[0011] Preferably, the elastic component includes a mounting block fixedly mounted on the meter body, an L-shaped moving rod and a telescopic spring sleeved on the moving rod, the mounting block is provided with a moving hole, the moving rod is vertically slidably inserted in the moving hole, the upper end of the moving rod is fixedly connected to the sealing plug, and the two ends of the telescopic spring are respectively fixedly connected to the mounting block and the moving rod.

[0012] Preferably, a second pull rope is fixedly mounted on the lower end of the moving rod, and one end of the second pull rope is wound around the valve.

[0013] Preferably, a sealing gasket is fixedly installed on the surface of the movable plate, and the sealing gasket is made of rubber.

[0014] In the utility model, the beneficial effects are:

[0015] Before using the pressure gauge, the positioning assembly, the first counterweight, the dial, the rectangular cylinder, the pulling assembly and the sealing plug can be used to automatically adjust the pressure gauge so that the pointer points to the zero scale line of the dial without manual adjustment, which is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional structural diagram of a new type of pressure gauge movement free adjustment structure proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of a partial cross-sectional structure of a new type of pressure gauge movement adjustment-free structure proposed by the utility model;

[0018] Figure 3 for Figure 1 A magnified view of the structure at center;

[0019] Figure 4 for Figure 2 A magnified view of the structure at B in the middle;

[0020] Figure 5 for Figure 2 Enlarged view of the structure at point C in the middle.

[0021] In the figure: 1 meter body, 2 air intake connecting pipe, 3 valve, 4 shaft core, 5 pointer, 6 dial, 7 first counterweight, 8 rectangular cylinder, 9 sealing plug, 10 stopper, 11 push rod, 12 moving plate, 13 first pull rope, 14 second counterweight, 15 mounting block, 16 moving rod, 17 telescopic spring, 18 second pull rope. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Reference Figure 1-Figure 5 A novel pressure gauge movement free debugging structure includes a gauge body 1, an air intake connecting pipe 2 is fixedly connected to the lower part of the gauge body 1, and a valve 3 is installed on the air intake connecting pipe 2;

[0024] The pressure gauge is installed in the pipeline through the air intake connecting pipe 2. The air intake connecting pipe 2 can be opened by turning the valve 3, and the gas in the pipeline will enter the pressure gauge to measure the gas pressure.

[0025] A shaft core 4 is rotatably mounted on the meter body 1, a pointer 5 is fixedly mounted on the shaft core 4, a semicircular dial 6 is rotatably sleeved on the shaft core 4, a first counterweight 7 is fixedly mounted on the left end of the dial 6, and a positioning assembly is provided on the left end of the dial 6, which allows the pointer 5 to coincide with the zero scale line of the dial 6;

[0026] Under the action of gas pressure, the shaft core 4 will be driven to rotate, thereby driving the pointer 5 to rotate. When the pointer 5 rotates, the size of the gas pressure can be judged according to the scale lines on the dial 6.

[0027] A rectangular tube 8 is fixedly installed on the watch body 1, and a pulling component for driving the dial 6 to rotate clockwise is arranged in the rectangular tube 8. An air hole is opened at the lower end of the rectangular tube 8. A sealing plug 9 is installed on the watch body 1 through an elastic component, and one end of the sealing plug 9 is inserted in the air hole. The pulling component includes a moving plate 12 vertically slidably installed in the rectangular tube 8, a first pull rope 13 fixedly installed on the upper surface of the moving plate 12, and a second counterweight block 14 fixedly installed on the lower surface of the moving plate 12. The end of the first pull rope 13 away from the moving plate 12 is fixedly connected to the right end of the dial 6. The weight of the first counterweight block 7 is less than the weight of the second counterweight block 14. A sealing gasket is fixedly installed on the surface of the moving plate 12, and the sealing gasket is made of rubber.

[0028] Since the weight of the first counterweight 7 is less than that of the second counterweight 14, the sealing plug 9 can be taken out of the air hole, and then the movable plate 12 is driven to move vertically downward in the rectangular tube 8 under the action of the gravity of the second counterweight 14, and then the dial 6 is driven to rotate clockwise through the first pull rope 13, and then the rotation of the dial 6 is limited by the positioning component. At this time, the pointer 5 just points to the zero scale line on the dial 6, and then the sealing plug 9 is inserted into the air hole through the elastic component to form a closed space between the inner wall of the rectangular tube 8 and the lower surface of the movable plate 12, so that under the action of pressure, the movable plate 12 is limited to move vertically downward, and under the gravity of the first counterweight 7, the first pull rope 13 is ensured to be in a stretched state, so that the pressure gauge can be automatically debugged so that the pointer 5 points to the zero scale line of the dial 6, without manual adjustment, and it is easy to use.

[0029] The positioning assembly includes a stopper 10 fixedly mounted on the dial 6 and a push rod 11 fixedly mounted on the pointer 5. One end of the push rod 11 contacts the stopper 10. When the dial 6 rotates clockwise, when the stopper 10 contacts the push rod 11, the rotation of the dial 6 is restricted. At this time, the pointer 5 just points to the zero scale line of the dial 6.

[0030] The elastic component includes a mounting block 15 fixedly mounted on the meter body 1, an L-shaped moving rod 16 and a telescopic spring 17 sleeved on the moving rod 16. The mounting block 15 is provided with a moving hole, and the moving rod 16 is vertically slidably inserted in the moving hole. The upper end of the moving rod 16 is fixedly connected to the sealing plug 9, and the two ends of the telescopic spring 17 are respectively fixedly connected to the mounting block 15 and the moving rod 16;

[0031] The moving rod 16 is installed on the pressure gauge through the mounting block 15. Under the action of the elastic force of the telescopic spring 17, the moving rod 16 has a tendency to move vertically downward, so that the sealing plug 9 installed on the upper end of the moving rod 16 will be inserted into the air hole to block the air hole, so that a closed space is formed between the inner wall of the rectangular tube 8 and the lower surface of the moving plate 12, and under the action of pressure, the moving plate 12 is restricted from moving vertically downward.

[0032] A second pull rope 18 is fixedly installed at the lower end of the moving rod 16, and one end of the second pull rope 18 is wrapped around the valve 3. When the valve 3 is turned to close the air intake connecting pipe 2, the second pull rope 18 will be wrapped around the valve 3, and the moving rod 16 is pulled vertically downward by the second pull rope 18. When the pressure gauge is in use, the valve 3 is turned to open the air intake connecting pipe 2. At this time, under the action of the elastic force of the telescopic spring 17, the movement of the moving plate 12 is restricted, thereby locking the rotation of the dial 6.

[0033] In the utility model, before using the pressure gauge, the sealing plug 9 is taken out from the air hole, and then the dial 6 is pulled clockwise by the pulling component until the positioning component limits the rotation of the dial 6, and then the sealing plug 9 is inserted into the air hole. Under the action of the first counterweight block 7, the rotation of the dial 6 can be limited. At this time, the pointer 5 points to the zero scale line of the dial 6, and the pressure gauge is automatically debugged without manual adjustment, which is easy to use.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A novel pressure gauge movement free adjustment structure, comprising a gauge body (1), characterized in that: An air intake connecting pipe (2) is fixedly connected to the bottom of the meter body (1), and a valve (3) is installed on the air intake connecting pipe (2); The watch body (1) is rotatably mounted with a shaft core (4), the shaft core (4) is fixedly mounted with a pointer (5), the shaft core (4) is rotatably sleeved with a semicircular dial (6), the left end of the dial (6) is fixedly mounted with a first counterweight (7), and the left end of the dial (6) is provided with a positioning component, the positioning component can make the pointer (5) coincide with the zero scale line of the dial (6); A rectangular tube (8) is fixedly mounted on the meter body (1), a pulling component for driving the dial (6) to rotate clockwise is arranged inside the rectangular tube (8), an air hole is opened at the lower end of the rectangular tube (8), a sealing plug (9) is mounted on the meter body (1) via an elastic component, and one end of the sealing plug (9) is inserted into the air hole.

2. According to claim 1, a new type of pressure gauge movement free adjustment structure is characterized in that: The positioning assembly comprises a stopper (10) fixedly mounted on the dial (6) and a push rod (11) fixedly mounted on the pointer (5), one end of the push rod (11) being in contact with the stopper (10).

3. According to claim 1, a new type of pressure gauge movement free adjustment structure is characterized in that: The pulling assembly comprises a moving plate (12) vertically slidably mounted in a rectangular tube (8), a first pull rope (13) fixedly mounted on the upper surface of the moving plate (12), and a second counterweight (14) fixedly mounted on the lower surface of the moving plate (12), wherein one end of the first pull rope (13) away from the moving plate (12) is fixedly connected to the right end of the dial (6), and the weight of the first counterweight (7) is less than the weight of the second counterweight (14).

4. According to claim 1, a new type of pressure gauge movement free adjustment structure is characterized in that: The elastic component comprises a mounting block (15) fixedly mounted on the meter body (1), an L-shaped moving rod (16) and a telescopic spring (17) sleeved on the moving rod (16); the mounting block (15) is provided with a moving hole, the moving rod (16) is vertically slidably inserted in the moving hole, the upper end of the moving rod (16) is fixedly connected to the sealing plug (9), and the two ends of the telescopic spring (17) are respectively fixedly connected to the mounting block (15) and the moving rod (16).

5. According to claim 4, a new type of pressure gauge movement free adjustment structure is characterized in that: A second pull rope (18) is fixedly mounted on the lower end of the moving rod (16), and one end of the second pull rope (18) is wound around the valve (3).

6. According to claim 3, a new type of pressure gauge movement free adjustment structure is characterized in that: A sealing gasket is fixedly mounted on the surface of the movable plate (12), and the sealing gasket is made of rubber.

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