Waterproof structure of pressure gauge movement

Abstract

The utility model discloses a pressure gauge movement waterproof structure, which relates to the technical field of pressure gauges, and comprises a shell, a movement is arranged in the shell, a cover body is arranged on the front surface of the shell, a waterproof mechanism is arranged between the cover body and the shell, and the waterproof mechanism comprises a water stop ring, a pressing ring and a sealing ring. The sealing ring is located between the water stop ring and the pressing ring, a first sealing part and a second sealing part are arranged on the two sides of the sealing ring respectively, and the first sealing part and the second sealing part can swing relative to the sealing ring. According to the utility model, the waterstop ring, the pressing ring and the sealing ring are matched with each other, and the first sealing part and the second sealing part on the sealing ring can swing relative to the sealing ring, so that multiple sealing is formed between the waterstop ring and the pressing ring, the waterproof performance is improved, the possibility that water enters a movement is reduced, and the normal work of the movement is ensured; therefore, the stability and the service life of equipment are improved.

Description

Technical Field

[0001] This utility model relates to the field of pressure gauge technology, and in particular to a waterproof structure for a pressure gauge movement. Background Technology

[0002] A pressure gauge is an instrument that uses an elastic element as its sensing element to measure and indicate pressures higher than the ambient pressure. They are ubiquitous in fields such as heating networks, oil and gas transmission, water and gas supply systems, and vehicle repair and maintenance shops. Due to the high mechanical strength and ease of production of the elastic sensing element of the pressure gauge, mechanical pressure gauges are being used more and more widely.

[0003] Currently, the existing waterproof structure of pressure gauge movements relies on a single sealing ring for waterproofing, which is not reliable enough and has poor sealing performance. This increases the risk of water entering the pressure gauge movement. Once water seeps in, it may affect the normal operation of the movement or even damage the pressure gauge. Utility Model Content

[0004] The purpose of this utility model is to solve the problems existing in the prior art by proposing a waterproof structure for a pressure gauge movement.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A waterproof structure for a pressure gauge movement includes a housing, within which a movement is installed. A cover is provided on the front of the housing, and a waterproof mechanism is provided between the cover and the housing. The waterproof mechanism includes a water-stop ring, a pressure ring, and a sealing ring. The water-stop ring is fixedly connected inside the housing, and the pressure ring is fixedly connected to the side of the cover facing the housing. The sealing ring is located between the water-stop ring and the pressure ring. A first sealing part and a second sealing part are respectively provided on both sides of the sealing ring. Both the first sealing part and the second sealing part can swing relative to the sealing ring. The surface of the first sealing part adheres to the water-stop ring and the pressure ring to form a sealing surface, and the surface of the second sealing part adheres to the pressure ring to form a sealing surface.

[0007] Preferably, the outer ring of the housing is fixedly connected to a plurality of first fixing blocks, and the outer ring of the cover is fixedly connected to a plurality of second fixing blocks that match the first fixing blocks. The first fixing blocks are provided with threaded holes, and the second fixing blocks are provided with stepped through holes. Bolts are provided in the stepped through holes, and the bolts are threadedly connected to the first fixing blocks through the threaded holes.

[0008] Preferably, the sealing ring and the first sealing part are integrally formed, a first notch is provided at the connection between the sealing ring and the first sealing part, and the included angle between the sealing ring and the first sealing part is an obtuse angle.

[0009] Preferably, the first sealing part is open in its natural state, and when the first sealing part swings to a vertical state, the first sealing part completely closes the first opening.

[0010] Preferably, the pressure ring has a groove on its side so that its cross-section is U-shaped, and the sum of the thicknesses of the two first sealing parts and the water-stop ring is slightly greater than the width of the groove.

[0011] Preferably, the sealing ring and the second sealing part are integrally formed, a second notch is provided at the connection between the sealing ring and the second sealing part, and the included angle between the sealing ring and the second sealing part is an acute angle.

[0012] Preferably, in the natural state, the second notch of the second sealing part is open, and when the second sealing part swings to a horizontal state, the second sealing part completely closes the first notch, and the second sealing part fits against the inner wall of the groove.

[0013] Preferably, a receiving space is formed between the shell, the cover, the water-stop ring, and the pressure ring, and the receiving space is filled with a desiccant.

[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0015] In this application, the water-stop ring, pressure ring, and sealing ring cooperate with each other. Since the first and second sealing parts on the sealing ring can swing relative to the sealing ring, the deformation is increased, thereby forming a tight seal on both the inner and outer sides. Multiple seals are formed between the water-stop ring and the pressure ring, which improves the waterproof performance, reduces the possibility of water entering the movement, ensures the normal operation of the movement, and thus improves the stability and lifespan of the equipment. Attached Figure Description

[0016] Figure 1 This utility model provides a three-dimensional structural diagram of a waterproof structure for a pressure gauge movement;

[0017] Figure 2 An exploded view of a waterproof structure for a pressure gauge movement is provided for this utility model.

[0018] Figure 3 This utility model provides a cross-sectional structural diagram of a waterproof structure for a pressure gauge movement;

[0019] Figure 4 This utility model proposes a waterproof structure for a pressure gauge movement. Figure 3 Enlarged view of point A in the middle;

[0020] Figure 5 This utility model provides a partial structural cross-sectional view of a waterproof structure for a pressure gauge movement;

[0021] Figure 6 This utility model proposes a waterproof structure for a pressure gauge movement. Figure 5 Enlarged diagram of point B in the middle.

[0022] Legend: 100, housing; 101, first fixing block; 102, threaded hole; 200, mechanism; 300, cover; 301, second fixing block; 302, stepped through hole; 303, bolt; 400, water-stop ring; 500, pressure ring; 501, groove; 600, sealing ring; 601, first sealing part; 602, second sealing part; 603, first notch; 604, second notch; 700, receiving space. Detailed Implementation

[0023] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0025] like Figure 1-6 As shown, this utility model provides a waterproof structure for a pressure gauge movement, including a housing 100, a movement 200 installed inside the housing 100, a cover 300 on the front of the housing 100, and a waterproof mechanism between the cover 300 and the housing 100. The waterproof mechanism includes a water-stop ring 400, a pressure ring 500, and a sealing ring 600. The water-stop ring 400 is fixedly connected inside the housing 100, the pressure ring 500 is fixedly connected to the side of the cover 300 facing the housing 100, and the sealing ring 600 is located between the water-stop ring 400 and the pressure ring 500. A first sealing part 601 and a second sealing part 602 are respectively provided on both sides of the sealing ring 600. Both the first sealing part 601 and the second sealing part 602 can swing relative to the sealing ring 600. The surface of the first sealing part 601 is attached to the water-stop ring 400 and the pressure ring 500 to form a sealing surface, and the surface of the second sealing part 602 is attached to the pressure ring 500 to form a sealing surface.

[0026] In this embodiment, a plurality of first fixing blocks 101 are fixedly connected to the outer ring of the housing 100, and a plurality of second fixing blocks 301 matching the first fixing blocks 101 are fixedly connected to the outer ring of the cover 300. A threaded hole 102 is provided in the first fixing block 101, and a stepped through hole 302 is provided in the second fixing block 301. A bolt 303 is provided in the stepped through hole 302. The bolt 303 is threadedly connected to the first fixing block 101 through the threaded hole 102, aligning the first fixing block 101 and the second fixing block 301. The bolt 303 is inserted into the stepped through hole 302 and engages with the threaded hole 102 to realize the installation between the cover 300 and the housing 100.

[0027] In this embodiment, the sealing ring 600 and the first sealing part 601 are integrally formed. A first notch 603 is provided at the connection between the sealing ring 600 and the first sealing part 601. The included angle between the sealing ring 600 and the first sealing part 601 is an obtuse angle. The notch of the first sealing part 601 is open in its natural state. When the first sealing part 601 swings to a vertical state, the first sealing part 601 completely closes the first notch 603. The first sealing ring 600 is squeezed and swung by the pressure ring 500, which increases the deformation of the first sealing part 601. This gives the first sealing part 601 the advantages of sealing both the inner and outer surfaces, enabling the first sealing part 601 to achieve a tight seal.

[0028] In this embodiment, the pressure ring 500 has a groove 501 on its side so that its cross-section is "U" shaped. The sum of the thicknesses of the two first sealing parts 601 and the water-stop ring 400 is slightly greater than the width of the groove 501. The first sealing part 601 can completely fill the gap between the water-stop ring 400 and the pressure ring 500, thereby improving the sealing effect.

[0029] In this embodiment, the sealing ring 600 and the second sealing part 602 are integrally formed. A second notch 604 is provided at the connection between the sealing ring 600 and the second sealing part 602. The included angle between the sealing ring 600 and the second sealing part 602 is an acute angle. In this embodiment, the second notch 604 is open in the natural state of the second sealing part 602. When the second sealing part 602 swings to a horizontal state, the second sealing part 602 completely closes the first notch 603. The second sealing part 602 fits against the inner wall of the groove 501. The second sealing part 602 is squeezed and swung by the pressure ring 500, which increases the deformation of the second sealing part 602. This gives the second sealing part 602 the advantages of sealing both the inner and outer surfaces, enabling the second sealing part 602 to achieve a tight seal.

[0030] In this embodiment, a receiving space 700 is formed between the housing 100, the cover 300, the water-stop ring 400 and the pressure ring 500. The receiving space 700 is filled with a desiccant. After water vapor enters through the gap between the cover 300 and the housing 100, it needs to pass through the desiccant before contacting the sealing ring 600, which can remove the moisture and prevent water vapor from entering.

[0031] How to use and how to work this device:

[0032] When using the device, first, the sealing ring 600 is put on the water-stop ring 400, the first fixing block 101 and the second fixing block 301 are aligned, the bolt 303 is inserted into the stepped through hole 302 and the bolt 303 is engaged with the threaded hole 102 to realize the installation between the cover 300 and the shell 100.

[0033] During the installation process described above, as the cover 300 and the housing 100 fit tightly together, the inner wall of the pressure ring 500 comes into contact with the first sealing part 601 and the second sealing part 602. The first sealing part 601 is squeezed and causes it to swing and deform. The first sealing part 601 swings to a vertical state, and the inner and outer sides of the first sealing part 601 come into contact with the water-stop ring 400 and the pressure ring 500, respectively. The second sealing part 602 is squeezed and causes it to swing and deform. The second sealing part 602 swings to a horizontal state and comes into contact with the pressure ring 500. Multiple seals are formed between the water-stop ring 400 and the pressure ring 500, improving the waterproof performance and reducing the possibility of water entering the movement 200, thus ensuring the normal operation of the movement 200.

[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A waterproof structure for a pressure gauge movement, characterized in that: The device includes a housing (100), within which an organic core (200) is installed. A cover (300) is provided on the front side of the housing (100). A waterproof mechanism is provided between the cover (300) and the housing (100). The waterproof mechanism includes a water-stop ring (400), a pressure ring (500), and a sealing ring (600). The water-stop ring (400) is fixedly connected inside the housing (100), and the pressure ring (500) is fixedly connected to the side of the cover (300) facing the housing (100). The sealing ring... The sealing ring (600) is located between the water-stop ring (400) and the pressure ring (500). A first sealing part (601) and a second sealing part (602) are respectively provided on both sides of the sealing ring (600). The first sealing part (601) and the second sealing part (602) can swing relative to the sealing ring (600). The surface of the first sealing part (601) is attached to the water-stop ring (400) and the pressure ring (500) to form a sealing surface. The surface of the second sealing part (602) is attached to the pressure ring (500) to form a sealing surface.

2. The waterproof structure of a pressure gauge movement according to claim 1, characterized in that: The outer ring of the housing (100) is fixedly connected to a plurality of first fixing blocks (101), and the outer ring of the cover (300) is fixedly connected to a plurality of second fixing blocks (301) that match the first fixing blocks (101). The first fixing blocks (101) are provided with threaded holes (102), and the second fixing blocks (301) are provided with stepped through holes (302). Bolts (303) are provided in the stepped through holes (302), and the bolts (303) are threadedly connected to the first fixing blocks (101) through the threaded holes (102).

3. The waterproof structure of a pressure gauge movement according to claim 1, characterized in that: The sealing ring (600) and the first sealing part (601) are integrally formed. A first notch (603) is provided at the connection between the sealing ring (600) and the first sealing part (601). The included angle between the sealing ring (600) and the first sealing part (601) is an obtuse angle.

4. The waterproof structure of a pressure gauge movement according to claim 3, characterized in that: When the first sealing part (601) is in its natural state with the opening open, and when the first sealing part (601) swings to a vertical state, the first sealing part (601) completely closes the first opening (603).

5. The waterproof structure of a pressure gauge movement according to claim 1, characterized in that: The pressure ring (500) has a groove (501) on its side so that its cross-section is "U" shaped. The sum of the thicknesses of the two first sealing parts (601) and the water-stop ring (400) is slightly greater than the width of the groove (501).

6. The waterproof structure of a pressure gauge movement according to claim 5, characterized in that: The sealing ring (600) and the second sealing part (602) are integrally formed. A second notch (604) is provided at the connection between the sealing ring (600) and the second sealing part (602). The included angle between the sealing ring (600) and the second sealing part (602) is an acute angle.

7. The waterproof structure of a pressure gauge movement according to claim 6, characterized in that: In its natural state, the second notch (604) of the second sealing part (602) is open. When the second sealing part (602) swings to a horizontal state, the second sealing part (602) completely closes the first notch (603) and the second sealing part (602) fits against the inner wall of the groove (501).

8. The waterproof structure of a pressure gauge movement according to claim 1, characterized in that: A receiving space (700) is formed between the housing (100), the cover (300), the water-stop ring (400), and the pressure ring (500), and the receiving space (700) is filled with a desiccant.

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