Threaded connection pressure gauge

Abstract

The utility model discloses a threaded connection pressure gauge which comprises a pressure gauge body, an erasable protective shell is fixedly installed on the front surface of the pressure gauge body, a threaded connector is fixedly installed at the lower end of the pressure gauge body, and an inclined clamping groove is formed between two circular rings on the outer side of the threaded connector. A movable hexagon nut is arranged between two circular rings on the outer side of the threaded connector in a sleeving mode, the erasable protective shell comprises a U-shaped outer frame, an L-shaped guide plate, a sliding plate, a telescopic spring, a transparent wafer, a rubber outer ring and a sponge gasket, and the U-shaped outer frame is fixedly installed at the position, located at the edge, of the front surface of the pressure gauge body; and the L-shaped guide plate is fixedly mounted at the upper end of the U-shaped outer frame. According to the threaded connection pressure gauge, the pressure gauge can be clearly observed in a steam environment through the erasable protective shell, the threaded connection pressure gauge has protection and sealing effects, and the inclined clamping groove is matched with the movable hexagon nut, so that the pressure gauge is more convenient and flexible to install.

Description

Technical Field

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

[0002] A pressure gauge is an instrument that uses an elastic element as a sensitive element to measure and indicate pressure higher than the ambient pressure. It is widely used in almost all industrial processes and scientific research fields, and can be seen everywhere in thermal pipelines, oil and gas transmission, water and gas supply systems, vehicle repair and maintenance shops, etc., especially in industrial process control and technical measurement. Due to the high mechanical strength and easy production of the elastic sensitive element of the mechanical pressure gauge, the mechanical pressure gauge is increasingly widely used. The threaded diaphragm pressure gauge adopts an indirect measurement structure and is suitable for measuring the pressure of liquids, gases or granular solid media with high viscosity, easy crystallization, high corrosiveness and high temperature. The threaded diaphragm pressure gauge has the advantages of easy installation, good corrosion resistance, stable and reliable operation, etc. It is widely used in pressure measurement in industrial fields such as chemical industry, chemical fiber, synthetic fiber, petroleum, dyeing, alkali making, etc.

[0003] Existing threaded pressure gauges have certain drawbacks when in use. When installing a traditional threaded pressure gauge, the installation process is not simple and flexible enough. In a narrow environment, it is inconvenient to turn the wrench. In a steam environment, the pressure surface will fog and condense into water droplets, affecting the observation of the pressure gauge. Utility Model Content

[0004] The main purpose of the utility model is to provide a threaded connection pressure gauge, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A threaded pressure gauge comprises a pressure gauge body, a wipeable protective shell is fixedly installed on the front surface of the pressure gauge body, a threaded connector is fixedly installed on the lower end of the pressure gauge body, an inclined groove is opened between two circular rings on the outer side of the threaded connector, and a movable hexagonal nut is sleeved between the two circular rings on the outer side of the threaded connector.

[0007] Preferably, the erasable protective shell includes a U-shaped outer frame, an L-shaped guide plate, a slide plate, a telescopic spring, a transparent disc, a rubber outer ring and a sponge gasket.

[0008] Preferably, the U-shaped outer frame is fixedly installed on the front surface of the pressure gauge body at a position at the edge, the L-shaped guide plate is fixedly installed on the upper end of the U-shaped outer frame, the slide plate is arranged in a slide groove on the front surface of the L-shaped guide plate, the telescopic spring is fixedly installed on the upper surface of the slide plate near the two corners, and the upper end of the telescopic spring is fixedly connected to the upper end of the L-shaped guide plate.

[0009] Preferably, the transparent disc is arranged inside the U-shaped outer frame at the lower end, the rubber outer ring is fixedly mounted on the inner side of the transparent disc, and the sponge gasket is fixedly mounted inside the rubber outer ring.

[0010] Preferably, the movable hexagonal nut includes a nut body, a fan-shaped groove, a fixed shaft, a movable block and a bending spring.

[0011] Preferably, the nut body is sleeved on the outside of the threaded connection head and located between the two rings, the fan-shaped groove is opened on the inside of the nut body in the middle, the fixed shaft is fixedly installed inside the fan-shaped groove, the movable block is sleeved on the outside of the fixed shaft, the bending spring is fixedly installed on the rear surface of the movable block near both ends, and the rear end of the bending spring is fixedly connected to the nut body.

[0012] Preferably, one end of the movable clamping block away from the fixed shaft is clamped into the interior of the inclined clamping groove.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] In the utility model, an erasable protective shell is provided, which allows the pressure gauge to be clearly observed even in a steam environment and has protective and sealing functions. The inclined slot and movable hexagonal nut are provided, and the inclined slot cooperates with the movable hexagonal nut to make the pressure gauge more convenient to install, and the installation operation method is simpler and more flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a threaded connection pressure gauge of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of a pressure gauge body and a threaded connection head of a threaded connection pressure gauge of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of an erasable protective shell of a threaded pressure gauge according to the utility model;

[0018] Figure 4 This is a schematic diagram of the interior of a movable hexagonal nut for a threaded connection pressure gauge of the utility model;

[0019] Figure 5 The utility model is a threaded connection pressure gauge Figure 3 The enlarged schematic diagram of part A in the middle;

[0020] Figure 6 The utility model is a threaded connection pressure gauge Figure 4 Enlarged schematic diagram of part B in the middle.

[0021] In the figure: 1. Pressure gauge body; 2. Erasable protective shell; 201. U-shaped outer frame; 202. L-shaped guide plate; 203. Slide plate; 204. Telescopic spring; 205. Transparent disc; 206. Rubber outer ring; 207. Sponge gasket; 3. Threaded connector; 4. Inclined slot; 5. Movable hexagonal nut; 501. Nut body; 502. Fan-shaped groove; 503. Fixed shaft; 504. Movable block; 505. Bending spring. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] like Figure 1-6 As shown, a threaded connection pressure gauge comprises a pressure gauge body 1, a wipeable protective shell 2 is fixedly installed on the front surface of the pressure gauge body 1, a threaded connector 3 is fixedly installed on the lower end of the pressure gauge body 1, an inclined slot 4 is provided between two circular rings on the outer side of the threaded connector 3, and a movable hexagonal nut 5 is sleeved between two circular rings on the outer side of the threaded connector 3. The wipeable protective shell 2 allows the pressure gauge to be clearly observed even in a steam environment and has a protective and sealing effect. The inclined slot 4 cooperates with the movable hexagonal nut 5 to make the pressure gauge more convenient to install, and the installation operation method is simpler and more flexible.

[0024] The erasable protective shell 2 includes a U-shaped outer frame 201, an L-shaped guide plate 202, a slide plate 203, a telescopic spring 204, a transparent disc 205, a rubber outer ring 206 and a sponge gasket 207; the U-shaped outer frame 201 is fixedly installed on the front surface of the pressure gauge body 1 at the edge, the L-shaped guide plate 202 is fixedly installed on the upper end of the U-shaped outer frame 201, the slide plate 203 is arranged in the slide groove on the front surface of the L-shaped guide plate 202, the telescopic spring 204 is fixedly installed on the upper surface of the slide plate 203 near the two corners, and the upper end of the telescopic spring 204 is fixedly connected to the upper end of the L-shaped guide plate 202; the transparent disc 205 is arranged at the lower end of the U-shaped outer frame 201, the rubber outer ring 206 is fixedly installed on the inner side of the transparent disc 205, and the sponge gasket 207 is fixedly connected to the upper end of the L-shaped guide plate 202. The washer 207 is fixedly installed inside the rubber outer ring 206; the movable hexagonal nut 5 includes a nut body 501, a fan-shaped groove 502, a fixed shaft 503, a movable clamping block 504 and a bending spring 505; the nut body 501 is sleeved on the outside of the threaded connector 3 and is located between the two circular rings, the fan-shaped groove 502 is opened on the inner side of the nut body 501 and is located in the middle position, the fixed shaft 503 is fixedly installed inside the fan-shaped groove 502, the movable clamping block 504 is sleeved on the outside of the fixed shaft 503, and the bending spring 505 is fixedly installed on the rear surface of the movable clamping block 504 near both ends, and the rear end of the bending spring 505 is fixedly connected to the nut body 501; the end of the movable clamping block 504 away from the fixed shaft 503 is inserted into the inside of the inclined clamping groove 4.

[0025] It should be noted that the utility model is a threaded connection pressure gauge. When in use, the threaded connector 3 is aligned with the pressure gauge mounting hole in the inclined slot 4 and the movable hexagonal nut 5. The nut body 501 is screwed forward by a wrench, and then the nut body 501 is screwed backward and then screwed forward. In the process of screwing the nut body 501 backward, the movable block 504 rotates with the fixed shaft 503 as the axis, and the movable block 504 is inserted into the interior of the fan-shaped groove 502, and the bending spring 505 is compressed. Then the movable block 504 is inserted into the interior of the inclined slot 4 again, and the inclined slot 4 cooperates with the movable hexagonal nut 5 so that The pressure gauge is more convenient to install, and the installation operation method is simpler and more flexible. In the erasable protective shell 2, the pressure gauge body 1 can be observed through the transparent disc 205. When the pressure gauge body 1 cannot be seen clearly due to excessive ambient steam, the slide plate 203 is lifted by fingers, and the slide plate 203 slides upward along the L-shaped guide plate 202. The telescopic spring 204 is compressed, and the transparent disc 205 slides upward along the U-shaped outer frame 201. The sponge gasket 207 scrapes off the water droplets on the surface of the pressure gauge body 1, and the rubber outer ring 206 plays a sealing role. The erasable protective shell 2 allows the pressure gauge to be clearly observed in a steam environment, and has a protective and sealing effect.

[0026] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A threaded pressure gauge, characterized in that: The pressure gauge comprises a pressure gauge body (1), a wipeable protective shell (2) being fixedly mounted on the front surface of the pressure gauge body (1), a threaded connector (3) being fixedly mounted on the lower end of the pressure gauge body (1), an inclined slot (4) being provided between two outer circular rings of the threaded connector (3), and a movable hexagonal nut (5) being sleeved between the two outer circular rings of the threaded connector (3).

2. A threaded connection pressure gauge according to claim 1, characterized in that: The erasable protective shell (2) comprises a U-shaped outer frame (201), an L-shaped guide plate (202), a slide plate (203), a telescopic spring (204), a transparent disc (205), a rubber outer ring (206) and a sponge gasket (207).

3. A threaded connection pressure gauge according to claim 2, characterized in that: The U-shaped outer frame (201) is fixedly mounted on the front surface of the pressure gauge body (1) at a position at the edge, the L-shaped guide plate (202) is fixedly mounted on the upper end of the U-shaped outer frame (201), the slide plate (203) is arranged in a slide groove on the front surface of the L-shaped guide plate (202), the telescopic spring (204) is fixedly mounted on the upper surface of the slide plate (203) at a position close to two corners, and the upper end of the telescopic spring (204) is fixedly connected to the upper end of the L-shaped guide plate (202).

4. A threaded connection pressure gauge according to claim 3, characterized in that: The transparent disc (205) is arranged inside the U-shaped outer frame (201) at a lower end, the rubber outer ring (206) is fixedly mounted on the inner side of the transparent disc (205), and the sponge gasket (207) is fixedly mounted inside the rubber outer ring (206).

5. A threaded connection pressure gauge according to claim 1, characterized in that: The movable hexagonal nut (5) comprises a nut body (501), a sector-shaped groove (502), a fixed shaft (503), a movable clamping block (504) and a bending spring (505).

6. A threaded connection pressure gauge according to claim 5, characterized in that: The nut body (501) is sleeved on the outside of the threaded connector (3) and located between the two circular rings. The fan-shaped groove (502) is opened on the inside of the nut body (501) and located in the middle. The fixed shaft (503) is fixedly installed inside the fan-shaped groove (502). The movable clamping block (504) is sleeved on the outside of the fixed shaft (503). The bending spring (505) is fixedly installed on the rear surface of the movable clamping block (504) near both ends. The rear end of the bending spring (505) is fixedly connected to the nut body (501).

7. A threaded connection pressure gauge according to claim 6, characterized in that: One end of the movable clamping block (504) away from the fixed shaft (503) is clamped into the interior of the inclined clamping groove (4).

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