Stroke indicator of gas pressure regulator

Abstract

The utility model discloses a gas pressure regulator stroke indicator, which belongs to the technical field of indicators, and comprises an indicator upper cover, an indicator lower cover, an indicating rod, an indicating seat and a first spring, the top end of the indicator upper cover is provided with a movable groove, the inner side wall of the movable groove is provided with two groups of limiting plates, and an O-shaped sealing ring is arranged between the two groups of limiting plates. Moving grooves are formed in the two sides of the indicator upper cover, dismounting and mounting structures are arranged in inner cavities of the moving grooves, the indicating rod is inserted into an inner cavity of the O-shaped sealing ring in a sliding mode, the indicating rod is welded to the upper surface of the indicating base, the indicating base is located in an inner cavity of the indicator lower cover, and the outer surface of the indicating rod is sleeved with the first spring. Threaded grooves are formed in the top ends of the two bases, so that the maintenance efficiency of a worker on the stroke indicator is improved, the work intensity of the worker during maintenance is reduced, and convenience is provided for the worker on the maintenance work of the stroke indicator.

Description

Technical Field

[0001] The utility model relates to the technical field of indicators, in particular to a stroke indicator for a gas pressure regulator. Background Art

[0002] Fisher 1098 pressure regulators from the United States are widely used throughout Beijing's urban areas, accounting for over 85% of pressure regulating stations. During routine maintenance, we discovered frequent leaks in the travel indicator area of ​​these regulators. This is because the O-ring in this area has lost its sealing function due to wear and tear, allowing gas to leak into the atmosphere through this area. Therefore, it needs to be replaced promptly.

[0003] Since the existing stroke indicator is an integrated setting, when replacing the internal sealing "O" ring, it is necessary to use equipment or tools to replace the sealing "O" ring. Due to reasons such as inappropriate tools and too narrow operating space, each disassembly and installation takes a long time, sometimes even several hours. In addition, inappropriate tools can easily cause damage to the equipment, which affects the maintenance efficiency of the staff of the stroke indicator and increases the workload of the staff during maintenance. Therefore, we need to propose a gas pressure regulator stroke indicator. Utility Model Content

[0004] The purpose of the present utility model is to provide a gas pressure regulator stroke indicator, which avoids the integrated setting of the stroke indicator cover through the arrangement of the cover plate and the two groups of bases, and enables the two groups of bases and the cover plate to be quickly installed and disassembled through the threaded connection between the threaded groove and the bottom end of the cover plate. The arrangement of the disassembly structure facilitates the assembly of the stroke indicator cover and the lower cover, and avoids the need for tools when replacing the sealing "O" ring, thereby improving the maintenance efficiency of the staff on the stroke indicator, reducing the work intensity of the staff during maintenance, and providing convenience for the staff in the maintenance work of the stroke indicator, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a gas pressure regulator travel indicator, comprising an indicator upper cover, an indicator lower cover, an indicator rod, an indicator seat and a first spring, the top of the indicator upper cover is provided with a movable groove, the inner side wall of the movable groove is provided with two groups of limit plates, an O-ring is provided between the two groups of limit plates, a movable groove is provided on both sides of the indicator upper cover, the inner cavity of the movable groove is provided with a disassembly structure convenient for disassembly and assembly between the upper cover and the lower cover, the indicator rod is plugged and slid into the inner cavity of the O-ring, the indicator rod is welded to the upper surface of the indicator seat, the indicator seat is located in the inner cavity of the indicator lower cover, the first spring is sleeved on the outer surface of the indicator rod, the indicator upper cover comprises two groups of bases and cover plates, the top ends of the two groups of bases are provided with threaded grooves, the bottom ends of the cover plates are internally threaded, and the inner cavity of the bottom end of the cover plate is threadedly connected to the top end of the base.

[0006] Preferably, the disassembly and assembly structure includes a slide seat, which is slidably connected to the inner cavity of the movable groove, and a card block is fixedly connected to the bottom end of the slide seat. A card slot is provided on the upper surface of the indicator cover, and the card block is engaged with the inner cavity of the card slot, and the card block is arranged in an L shape.

[0007] Preferably, a sliding sleeve is fixedly inserted into the surface of the sliding seat, a sliding rod is slidably inserted into the inner cavity of the sliding sleeve, both ends of the sliding rod are fixedly connected to the inner wall of the movable groove, and a second spring is sleeved on the outer surface of the sliding rod.

[0008] Preferably, a silicone pad is bonded to the upper surface of the sliding seat, and the upper surface of the silicone pad is provided with anti-slip vertical lines, and the anti-slip vertical lines are provided in several groups.

[0009] Preferably, the bottom end of the indicator upper cover is fixedly connected to a limiting post, the upper surface of the indicator lower cover is provided with a limiting groove, and the limiting post is engaged with the inner cavity of the limiting groove.

[0010] Preferably, a sealing ring is bonded to the top end of the indicator lower cover, a sealing groove is formed at the bottom end of the indicator upper cover, and the sealing ring is sealedly connected to the inner cavity of the sealing groove.

[0011] Preferably, the inner side walls of the two groups of bases are respectively provided with fixing columns and fixing grooves, the fixing columns and the inner cavities of the fixing grooves are plugged and slid, and the inner side walls of the bases are also bonded with sealing gaskets.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The utility model provides a gas pressure regulator stroke indicator, which avoids the integrated arrangement of the stroke indicator cover through the arrangement of the cover plate and the two groups of bases, and enables the two groups of bases and the cover plate to be quickly installed and disassembled through the threaded connection between the threaded groove and the bottom end of the cover plate. The arrangement of the disassembly and assembly structure facilitates the assembly of the stroke indicator cover and the lower cover, and avoids the need for tools when replacing the sealing "O" ring, thereby improving the maintenance efficiency of the staff on the stroke indicator, reducing the work intensity of the staff during maintenance, and providing convenience for the staff in the maintenance work of the stroke indicator.

[0014] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be achieved and obtained by the structures indicated in the description and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a structural diagram of the utility model indicator cover disassembly;

[0017] Figure 3 This is a schematic diagram of the structure of the indicator cover of the utility model when it is disassembled and viewed from above;

[0018] Figure 4 The figure is a schematic diagram of the structure of the indicator after the upper cover and the lower cover of the indicator are disassembled.

[0019] In the figure: 1. Indicator upper cover; 11. Base; 12. Cover plate; 13. Threaded groove; 2. Indicator lower cover; 3. Indicator rod; 4. Indicator seat; 5. First spring; 6. Movable groove; 7. Limiting plate; 8. O-ring; 9. Movable groove; 10. Disassembly and assembly structure; 101. Slide seat; 102. Block; 103. Slot; 21. Slide sleeve; 22. Slide rod; 23. Second spring; 24. Silicone pad; 25. Limiting column; 26. Limiting groove; 27. Sealing ring; 28. Sealing groove; 29. ​​Fixed column; 30. Fixed groove; 31. Sealing pad. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1-4 The utility model provides a gas pressure regulator stroke indicator, including an indicator upper cover 1, an indicator lower cover 2, an indicator rod 3, an indicator seat 4 and a first spring 5. The top of the indicator upper cover 1 is provided with a movable groove 6, and the inner side wall of the movable groove 6 is provided with two groups of limit plates 7. An O-ring 8 is provided between the two groups of limit plates 7. Both sides of the indicator upper cover 1 are provided with a movable groove 9. The inner cavity of the movable groove 9 is provided with a disassembly structure 10 that is convenient for disassembly and assembly between the upper cover and the lower cover. The indicator rod 3 is inserted and slid into the inner cavity of the O-ring 8. The indicator rod 3 is welded to the upper surface of the indicator seat 4, and the indicator seat 4 is located in the inner cavity of the indicator lower cover 2. The first spring 5 is sleeved on the outer surface of the indicator rod 3. The indicator upper cover 1 includes two groups of bases 11 and a cover plate 12. The tops of the two groups of bases 11 are provided with threaded grooves 13. The bottom end of the cover plate 12 is internally threaded, and the inner cavity of the bottom end of the cover plate 12 is threadedly connected to the top of the base 11.

[0022] During disassembly, press the disassembly and assembly structure 10 to cancel the fixation between the indicator upper cover 1 and the indicator lower cover 2, so that the indicator upper cover 1 and the indicator lower cover can be quickly disassembled and assembled. After the indicator rod 3 is moved out of the inner cavity of the movable groove 6, the rotating cover plate 12 cancels the fixation of the two groups of bases 11, so that the two groups of bases 11 can be disassembled and the O-rings 8 can be replaced. After replacement, the cover plate 12 and the two groups of bases 11 are assembled into the travel indicator upper cover 1, avoiding the need for tools when replacing the sealing "O" ring, thereby improving the maintenance efficiency of the staff on the travel indicator, reducing the work intensity of the staff during maintenance, and providing convenience for the staff to maintain the travel indicator.

[0023] The disassembly and assembly structure 10 includes a slide 101, which is slidably connected to the inner cavity of the movable groove 9. A clamping block 102 is fixedly connected to the bottom end of the slide 101. A clamping slot 103 is provided on the upper surface of the indicator upper cover 1. The clamping block 102 is engaged with the inner cavity of the clamping slot 103. The clamping block 102 is L-shaped, pushing the slide 101 to slide in the movable groove 9. When the slide 101 moves, it drives the clamping block 102 to move. When the clamping block 102 enters the inner cavity of the clamping slot 103, the indicator upper cover 1 and the indicator lower cover 2 are fixed. When the clamping block 102 moves out of the inner cavity of the clamping slot 103, the indicator upper cover 1 and the indicator lower cover 2 are released.

[0024] A sliding sleeve 21 is fixedly inserted into the surface of the slide 101, and a sliding rod 22 is inserted and slidably inserted into the inner cavity of the sliding sleeve 21. Both ends of the sliding rod 22 are fixedly connected to the inner wall of the movable groove 9. The outer surface of the sliding rod 22 is sleeved with a second spring 23. Through the cooperation of the sliding rod 22 and the sliding sleeve 21, the stability of the slide 101 when sliding in the inner cavity of the movable groove 9 is improved. Through the setting of the spring, the thrust of the spring is used to position the block 102 in the inner cavity of the slot 103 during positioning, thereby preventing the block 102 from moving in the slot 103.

[0025] A silicone pad 24 is bonded to the upper surface of the slide 101, and the upper surface of the silicone pad 24 is provided with anti-slip vertical lines. There are several groups of anti-slip vertical lines. The setting of the silicone pad 24 increases the comfort of the slide 101 after contact with the staff's hands, and the setting of the anti-slip vertical lines improves the friction between the silicone pad 24 and the staff's hands.

[0026] The bottom end of the indicator upper cover 1 is fixedly connected to a limiting post 25, and a limiting groove 26 is provided on the upper surface of the indicator lower cover 2. The limiting post 25 and the inner cavity of the limiting groove 26 are engaged with each other. Through the cooperation between the limiting post 25 and the limiting groove 26, the indicator upper cover 1 and the indicator lower cover 2 are fixed, thereby improving the stability of the indicator upper cover 1 and the indicator lower cover 2 after they are fixed.

[0027] A sealing ring 27 is bonded to the top of the indicator lower cover 2, and a sealing groove 28 is provided at the bottom end of the indicator upper cover 1. The sealing ring 27 is sealedly connected to the inner cavity of the sealing groove 28. The cooperation between the sealing ring 27 and the sealing groove 28 improves the sealing effect of the connection between the indicator upper cover 1 and the indicator lower cover 2.

[0028] The inner walls of the two groups of bases 11 are respectively provided with fixing columns 29 and fixing grooves 30. The fixing columns 29 and the inner cavities of the fixing grooves 30 are inserted and slid. The inner wall of the base 11 is also bonded with a sealing gasket 31. Through the cooperation of the fixing columns 29 and the fixing grooves 30, the stability of the two groups of bases 11 and the cover plate 12 after being combined into the indicator cover 1 is improved. Through the provision of the sealing gasket 31, the sealing effect of the combination of the two groups of bases 11 is increased.

[0029] Specific use: When it is necessary to replace, push the slide 101 to drive the block 102 to move, so that the block 102 moves out of the inner cavity of the card slot 103, cancel the fixation between the indicator cover 1 and the indicator lower cover 2, then take out the indicator cover 1, disassemble the indicator rod 3 and the indicator seat 4, rotate the cover 12 to cancel the fixation of the two groups of bases 11, and then separate the two groups of bases 11, finally take out the O-ring 8 from the limit plate 7, put the new O-ring 8 between the two groups of limit plates 7 for fixation, and then close the two groups of bases 11, and connect the cover 12 with the two groups. The base 11 is threadedly connected, and the cover 12 is rotated to combine the cover 12 and the two groups of bases 11 into the indicator upper cover 1, and the indicator rod 3 is inserted into the movable groove 6. Then, the indicator upper cover 1 and the indicator lower cover 2 are combined, and the sliding seat 101 is moved to drive the card block 102 into the inner cavity of the card slot 103 for fixation, thereby avoiding the need for tools when replacing the sealing "O" ring, thereby improving the maintenance efficiency of the staff on the travel indicator, reducing the work intensity of the staff during maintenance, and providing convenience for the staff to maintain the travel indicator.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gas pressure regulator travel indicator, comprising an indicator upper cover (1), an indicator lower cover (2), an indicator rod (3), an indicator seat (4) and a first spring (5), characterized in that: The top of the indicator upper cover (1) is provided with a movable groove (6), the inner side wall of the movable groove (6) is provided with two groups of limit plates (7), an O-shaped sealing ring (8) is provided between the two groups of limit plates (7), and both sides of the indicator upper cover (1) are provided with a movable groove (9), the inner cavity of the movable groove (9) is provided with a disassembly structure (10) for facilitating disassembly between the upper cover and the lower cover, the indicator rod (3) is inserted and slidably connected with the inner cavity of the O-shaped sealing ring (8), and the indicator The rod (3) is welded to the upper surface of the indicator seat (4), the indicator seat (4) is located in the inner cavity of the indicator lower cover (2), the first spring (5) is sleeved on the outer surface of the indicator rod (3), the indicator upper cover (1) includes two groups of bases (11) and cover plates (12), the top ends of the two groups of bases (11) are provided with thread grooves (13), the bottom end of the cover plate (12) is provided with an internal thread, and the inner cavity of the bottom end of the cover plate (12) is threadedly connected to the top end of the base (11).

2. A gas pressure regulator travel indicator according to claim 1, characterized in that: The disassembly and assembly structure (10) comprises a slide seat (101), the slide seat (101) is slidably connected to the inner cavity of the movable groove (9), a clamping block (102) is fixedly connected to the bottom end of the slide seat (101), a clamping slot (103) is provided on the upper surface of the indicator upper cover (1), the clamping block (102) is engaged with the inner cavity of the clamping slot (103), and the clamping block (102) is arranged in an L shape.

3. A gas pressure regulator travel indicator according to claim 2, characterized in that: A sliding sleeve (21) is inserted and fixed on the surface of the sliding seat (101), a sliding rod (22) is inserted and slidably inserted in the inner cavity of the sliding sleeve (21), both ends of the sliding rod (22) are fixedly connected to the inner wall of the movable groove (9), and a second spring (23) is sleeved on the outer surface of the sliding rod (22).

4. A gas pressure regulator travel indicator according to claim 2, characterized in that: A silicone pad (24) is bonded to the upper surface of the sliding seat (101), and the upper surface of the silicone pad (24) is provided with anti-skid vertical lines, and the anti-skid vertical lines are provided in a plurality of groups.

5. The gas pressure regulator travel indicator according to claim 1, characterized in that: The bottom end of the indicator upper cover (1) is fixedly connected to a limiting column (25), and the upper surface of the indicator lower cover (2) is provided with a limiting groove (26), and the limiting column (25) is engaged with the inner cavity of the limiting groove (26).

6. A gas pressure regulator travel indicator according to claim 1, characterized in that: A sealing ring (27) is bonded to the top end of the indicator lower cover (2), a sealing groove (28) is provided at the bottom end of the indicator upper cover (1), and the sealing ring (27) is sealedly connected to the inner cavity of the sealing groove (28).

7. A gas pressure regulator travel indicator according to claim 1, characterized in that: The inner side walls of the two groups of bases (11) are respectively provided with fixing columns (29) and fixing grooves (30). The inner cavities of the fixing columns (29) and the fixing grooves (30) are plugged and slidably connected. The inner side walls of the bases (11) are also bonded with sealing pads (31).

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