Fire-fighting pipe rapid butt joint structure of photovoltaic power plant booster station

Abstract

The utility model discloses a quick butt-joint structure of a fire-fighting pipe of a booster station of a photovoltaic power plant, which relates to the technical field of fire fighting and comprises a male joint and a female joint, one end of the male joint inside the female joint is contacted with a sealing gasket, the outer surface of the male joint is connected with a baffle ring, the inner wall of a supporting seat is hinged with a clamping jaw, and the clamping jaw is connected with a clamping groove. The fire pipe quick butt joint structure of the booster station of the photovoltaic power plant comprises a baffle, a clamping ring is arranged on the baffle, a clamping jaw is arranged on the baffle, a first spring is arranged below the clamping jaw, the inner wall of the clamping ring makes contact with the outer surface of the baffle, and a plurality of second springs are arranged in the clamping ring. The second spring provides pushing force for the clamping ring, the clamping ring is pushed to be in contact with the baffle, the baffle is wrapped by the clamping ring, the baffle provides supporting force for the clamping jaw, the stability of the clamping jaw is kept, the male connector and the female connector are firmly connected together through the clamping jaw, and the stability of the male connector and the female connector during connection is improved.

Description

Technical Field

[0001] This utility model relates to the field of fire protection technology, specifically a quick-connection structure for fire protection pipes in a photovoltaic power plant booster station. Background Technology

[0002] A step-up substation is a crucial component of a photovoltaic (PV) power generation system. Its primary function is to convert the low-voltage direct current (DC) generated by PV cells into high-voltage alternating current (AC) for grid connection and distribution. The substation enhances voltage and maintains its stability. PV power generation systems typically have low output voltages, generally between several hundred volts and over one thousand volts, while grid transmission voltages are typically higher, such as 10kV, 35kV, 110kV, and 220kV. The substation uses step-up transformers to raise the PV power plant's output voltage to a level compatible with the grid, ensuring smooth grid connection and guaranteeing power quality and supply stability.

[0003] During the operation of photovoltaic power plant substations, fires may occur. To ensure the stable operation of other components of the substation, prevent the spread of fire, and minimize losses after a fire, fire suppression systems are usually installed. To extinguish fires quickly, quick-connect couplings are often used to connect fire suppression pipelines and spray extinguishing agents to the fire scene. Most existing fire suppression pipeline couplings use snap-fit ​​type. Although snap-fit ​​couplings can achieve quick connection, when the pressure of the fire suppression agent is too high, the couplings may not be able to withstand the pressure and may cause the couplings to separate directly. Therefore, there is an urgent need for a quick-connect structure for fire suppression pipelines in photovoltaic power plant substations to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a quick-connect structure for fire-fighting pipes in a photovoltaic power plant booster station, in order to solve the problem mentioned in the background art that when the fire-fighting medium transmission pressure is too high, the joints may not be able to withstand the pressure, which may lead to the joints separating directly.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick-connect structure for fire-fighting pipes in a photovoltaic power plant substation, comprising a male connector and a female connector. A sealing gasket is installed inside the female connector. One end of the male connector located inside the female connector contacts the sealing gasket. A retaining ring is connected to the outer surface of the male connector, and the retaining ring has an inclined angle. A support base is connected to the outer surface of the female connector. A pawl is hinged to the inner wall of the support base. A first spring is provided below the pawl. The other end of the pawl contacts one side of the retaining ring. A baffle is connected to one end of the pawl located on the retaining ring. A retaining ring is slidably connected to the outer surface of the male connector. The inner wall of the retaining ring contacts the outer surface of the baffle. Multiple second springs are provided inside the retaining ring.

[0006] The inner wall of the retaining ring is connected to the same number of guide rods as the second spring. The outer surface of the guide rod is slidably connected to the inner wall of the male connector. A limit block is connected to one end of the guide rod located outside the male connector.

[0007] The second spring is sleeved on the outside of the guide rod, one end of the second spring is connected to one side of the male connector, and the other end of the second spring is connected to the inner wall of the retaining ring.

[0008] The first spring is connected to one side of the support base, and the other end of the first spring is connected to one side of the claw. The support base and the claw are both connected to a positioning pin, and the positioning pin is located inside the first spring.

[0009] The male connector has a slide rail on its inner side. A pull rod is rotatably connected to the inner wall of the retaining ring. A stop block is connected to the outer surface of the pull rod. The outer surface of the stop block is slidably connected to the inner wall of the slide rail. A pull ring is connected to one end of the pull rod located outside the retaining ring.

[0010] The number of the claws is four, and the four claws are arranged in a circular array. The outer surface of the claws is connected to a handle.

[0011] The outer surface of the female connector is connected to a positioning ring, and the outer surface of the positioning ring is in contact with the outer surface of the chuck.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. The quick-connect structure for fire-fighting pipes in a photovoltaic power plant substation of this utility model utilizes the cooperation between a baffle, a retaining ring, and a second spring. The second spring provides a pushing force to the retaining ring, keeping it in contact with the baffle. The retaining ring encloses the baffle, restricting its movement and ensuring its stability. The baffle provides support for the claws, maintaining their stability and ensuring that the claws firmly connect the male and female connectors, thus improving the stability of the connection between the male and female connectors.

[0014] 2. The quick-connect structure for fire-fighting pipes in a photovoltaic power plant substation of this utility model utilizes the cooperation between the claws and the handle. The handle facilitates the transmission of hand force to the claws, and the claws can be lifted to easily disengage from the retaining ring, thereby facilitating the disconnection between the male and female connectors. Attached Figure Description

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

[0016] Figure 2 This is a schematic diagram of the overall right-side three-dimensional structure of this utility model;

[0017] Figure 3This is a schematic diagram of the internal structure of the female connector of this utility model;

[0018] Figure 4 This is a schematic diagram of the support structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the overall three-dimensional structure of the male connector of this utility model;

[0020] Figure 6 This is a cross-sectional schematic diagram of the internal structure of the retaining ring of this utility model.

[0021] In the diagram: 1. Male connector; 2. Female connector; 3. Sealing gasket; 4. Retaining ring; 5. Support base; 6. Claw; 7. First spring; 8. Baffle; 9. Claw ring; 10. Second spring; 11. Guide rod; 12. Limiting block; 13. Positioning pin; 14. Slide rail; 15. Pull rod; 16. Stop block; 17. Pull ring; 18. Handle; 19. Positioning ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-6 This utility model provides a quick-connect structure for fire-fighting pipes in a photovoltaic power plant substation, including a male connector 1 and a female connector 2. A sealing gasket 3 is installed inside the female connector 2. One end of the male connector 1 inside the female connector 2 contacts the sealing gasket 3. The sealing gasket 3 is made of rubber. The sealing gasket 3 is squeezed by the male connector 1 and the female connector 2 to fill the gap between the male connector 1 and the female connector 2, thereby improving the sealing performance when the male connector 1 and the female connector 2 are connected.

[0024] The outer surface of the male connector 1 is connected to a retaining ring 4, and the retaining ring 4 has an inclined angle. The male connector 1 provides support for the claw 6 through the retaining ring 4, and the retaining ring 4 is inclined to facilitate contact with the claw 6.

[0025] The outer surface of the female connector 2 is connected to a support base 5, and the inner wall of the support base 5 is hinged with a claw 6. The support base 5 provides support force to the claw 6 to maintain the stability of the claw 6.

[0026] A first spring 7 is provided below the claw 6. The first spring 7 is connected to one side of the support base 5, and the other end of the first spring 7 is connected to one side of the claw 6. The support base 5 and the claw 6 are both connected to a positioning pin 13 on the opposite side, and the positioning pin 13 is located inside the first spring 7. The first spring 7 provides an elastic pushing force for the claw 6 to flip, and the positioning pin 13 provides a supporting force for the first spring 7, maintaining the stability of the first spring 7 when it elastically contracts.

[0027] The other end of the pawl 6 contacts one side of the retaining ring 4. A baffle 8 is connected to one end of the pawl 6 located on the retaining ring 4. A retaining ring 9 is slidably connected to the outer surface of the male connector 1. The inner wall of the retaining ring 9 contacts the outer surface of the baffle 8. The pawl 6 contacts the retaining ring 9 through the baffle 8. The retaining ring 9 wraps the baffle 8 inside, restricting the movement of the baffle 8. The baffle 8 provides resistance to the pawl 6, maintaining the stability of the pawl 6.

[0028] The retaining ring 9 has multiple second springs 10 inside. The inner wall of the retaining ring 9 is connected to guide rods 11 in the same number as the second springs 10. The outer surface of the guide rods 11 is slidably connected to the inner wall of the male connector 1. One end of the guide rod 11 located outside the male connector 1 is connected to a limiting block 12. The guide rods 11 provide support force for the second springs 10, maintaining the stability of the second springs 10 during elastic contraction. The limiting block 12 restricts the position of one end of the retaining ring 9.

[0029] The second spring 10 is sleeved on the outside of the guide rod 11. One end of the second spring 10 is connected to one side of the male connector 1, and the other end of the second spring 10 is connected to the inner wall of the retaining ring 9. The second spring 10 provides elastic pushing force to the retaining ring 9, pushing the retaining ring 9 to contact the baffle 8, preventing the retaining ring 9 from disengaging from contact with the baffle 8.

[0030] The inner side of the male connector 1 is provided with a slide rail 14. The inner wall of the retaining ring 9 is rotatably connected to a pull rod 15. The outer surface of the pull rod 15 is connected to a stop block 16. The outer surface of the stop block 16 is slidably connected to the inner wall of the slide rail 14. The end of the pull rod 15 located outside the retaining ring 9 is connected to a pull ring 17. Before the pawl 6 contacts the stop ring 4, the retaining ring 9 is first pushed to move backward so that the pawl 6 is not blocked by the retaining ring 9. Then, the pull rod 15 is rotated through the pull ring 17. While rotating, the pull rod 15 drives the stop block 16 to change its angle. After the angle changes, the stop block 16 contacts the outside of the male connector 1. The stop block 16 blocks and restricts the retaining ring 9 from resetting. After the pawl 6 contacts the stop ring 4, the pull rod 15 is rotated in the opposite direction to drive the stop block 16 into the slide rail 14, so that the retaining ring 9 resets and contacts the baffle 8.

[0031] There are four claws 6 arranged in a circular array. A handle 18 is attached to the outer surface of the claws 6. The female connector 2 contacts the male connector 1 through the four claws 6, which increases the stability of the connection between the male connector 1 and the female connector 2. The handle 18 makes it easy to lift the claws 6, so that the claws 6 can easily detach from the retaining ring 4.

[0032] The outer surface of the female connector 2 is connected to a positioning ring 19. The outer surface of the positioning ring 19 contacts the outer surface of the claw 6. The positioning ring 19 provides support for the claw 6 and sets the angle of the claw 6 to prevent the first spring 7 from pushing one end of the claw 6 to tilt up, which would cause the other end of the claw 6 to tilt too much and make it difficult to contact the retaining ring 4.

[0033] Working principle: First, insert the male connector 1 into the female connector 2, and at the same time, the pawl 6 contacts the retaining ring 4. Then, rotate the pull rod 15 through the pull ring 17. After the pull rod 15 rotates, the stop block 16 is located inside the slide rail 14. Then, the second spring 10 pushes the pawl 9 to move towards the baffle 8, and at the same time, it drives the pull rod 15 to move. Then, the pawl 9 wraps the baffle 8 inside, restricting the movement of the baffle 8.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A quick-connect structure for fire-fighting pipes in a photovoltaic power plant substation, comprising a male connector (1) and a female connector (2), characterized in that: A sealing gasket (3) is installed inside the female connector (2). One end of the male connector (1) located inside the female connector (2) is in contact with the sealing gasket (3). A retaining ring (4) is connected to the outer surface of the male connector (1), and the retaining ring (4) has an inclined angle. A support seat (5) is connected to the outer surface of the female connector (2). A pawl (6) is hinged to the inner wall of the support seat (5). A first spring (7) is provided below the pawl (6). The other end of the pawl (6) is in contact with one side of the retaining ring (4). A baffle (8) is connected to one end of the pawl (6) located in the retaining ring (4). A retaining ring (9) is slidably connected to the outer surface of the male connector (1). The inner wall of the retaining ring (9) is in contact with the outer surface of the baffle (8). A plurality of second springs (10) are provided inside the retaining ring (9).

2. The quick-connection structure for fire-fighting pipes in a photovoltaic power plant booster station according to claim 1, characterized in that: The inner wall of the retaining ring (9) is connected to the same number of guide rods (11) as the second spring (10). The outer surface of the guide rod (11) is slidably connected to the inner wall of the male connector (1). One end of the guide rod (11) located outside the male connector (1) is connected to a limit block (12).

3. The quick-connection structure for fire-fighting pipes in a photovoltaic power plant booster station according to claim 2, characterized in that: The second spring (10) is sleeved on the outside of the guide rod (11). One end of the second spring (10) is connected to one side of the male connector (1), and the other end of the second spring (10) is connected to the inner wall of the retaining ring (9).

4. The quick-connection structure for fire-fighting pipes in a photovoltaic power plant booster station according to claim 1, characterized in that: The first spring (7) is connected to one side of the support base (5), and the other end of the first spring (7) is connected to one side of the claw (6). The support base (5) and the claw (6) are both connected to a positioning pin (13), and the positioning pin (13) is located inside the first spring (7).

5. The quick-connection structure for fire-fighting pipes in a photovoltaic power plant booster station according to claim 1, characterized in that: The male connector (1) has a slide (14) on its inner side. The inner wall of the retaining ring (9) is rotatably connected to a pull rod (15). The outer surface of the pull rod (15) is connected to a stop (16). The outer surface of the stop (16) is slidably connected to the inner wall of the slide (14). The end of the pull rod (15) located outside the retaining ring (9) is connected to a pull ring (17).

6. The quick-connection structure for fire-fighting pipes in a photovoltaic power plant booster station according to claim 1, characterized in that: The number of the claws (6) is four, and the four claws (6) are arranged in a circular array. The outer surface of the claws (6) is connected to a handle (18).

7. The quick-connection structure for fire-fighting pipes in a photovoltaic power plant booster station according to claim 1, characterized in that: The outer surface of the female connector (2) is connected to a positioning ring (19), and the outer surface of the positioning ring (19) is in contact with the outer surface of the claw (6).

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