Natural gas protection pressure regulating box

Abstract

The utility model provides a natural gas protection pressure regulating box which relates to the technical field of natural gas and comprises a base assembly, the base assembly comprises a bottom plate, a gas pipe hole is formed in the bottom plate, a connecting plate is fixed on the bottom plate, and a shell is arranged on the bottom plate and the connecting plate in a sliding and sleeving mode. According to the utility model, the shell can be taken down conveniently and quickly by disassembling the bolts between the shell and the bottom plate, when the box door needs to be opened, the box door is rotated, the box door pushes the sliding rod through the fixed plate, the locking plate and the second limiting hole, so that the sliding rod does not limit the locking plate any more, and at the moment, the box door can be opened and continuously rotated, and the box door can be taken down conveniently and quickly. When the first limiting hole rotates to the position of the sliding rod, the sliding rod is clamped into the first limiting hole under the elastic force effect of the compression spring, then locking of the locking plate, the fixing plate and the box door is completed, at the moment, the box door is in a locked state, and the risk that the box door is automatically closed under the action of external force is effectively reduced.

Description

Technical Field

[0001] This utility model relates to a pressure regulating box, specifically a natural gas protection pressure regulating box, belonging to the field of natural gas technology. Background Technology

[0002] Natural gas needs to maintain a stable pressure during transportation to ensure normal operation for downstream users. Pressure regulating boxes, as important pressure regulating equipment, are widely used in natural gas transmission and distribution systems. Their main function is to regulate high-pressure natural gas to a low pressure suitable for user needs, ensuring a safe and stable gas supply.

[0003] Chinese Patent Publication CN220523897U discloses a natural gas protective pressure regulating box. The inner casing protects the pressure regulating device, extending its service life. When inspecting the internal device, maintenance personnel only need to pull the handle outward to unlock it and slide the outer casing downward to flip the two protective shells outward, exposing the internal pressure regulating device. This facilitates internal maintenance, avoids disassembly, and improves work efficiency.

[0004] In actual use, if routine maintenance only requires opening the enclosure door without disassembling the outer casing, the door is easily closed by the wind in windy outdoor environments, which can interfere with maintenance personnel.

[0005] When maintenance personnel need to disassemble the outer casing, the technical solution in the aforementioned patent requires pulling both handles simultaneously to release the locking structure, then sliding the outer casing and flipping the protective shell. This operation is complex and requires high synchronization. Furthermore, the protective shell needs to be opened by flipping it along the hinge, requiring manual support or fixation during the opening process. In windy outdoor environments, the protective shell is prone to closing under wind force, interfering with maintenance personnel. Therefore, a natural gas protective pressure regulating box is proposed here. Utility Model Content

[0006] This utility model proposes a natural gas protection pressure regulating box that can lock the opening and locking states of the box door, effectively reducing the risk of the box door automatically closing under external force, and also making it easier to disassemble the outer shell.

[0007] This utility model is achieved through the following technical solution: a natural gas protection pressure regulating box, including a base assembly, the base assembly including a base plate, a gas pipe hole opened on the base plate, a connecting plate fixed on the base plate, and a shell slidably sleeved on the base plate and the connecting plate.

[0008] The base assembly is provided with a detachable housing assembly, which includes an outer shell and a door. The housing assembly also includes mounting holes on the outer shell and the bottom plate. The bottom plate and the outer shell are fixed together by mounting holes and bolts. The left and right sides of the outer shell are provided with evenly distributed ventilation slots. The top of the outer shell is fixed with a rain cover.

[0009] A self-locking mechanism for locking the door is provided between the outer shell and the door. The self-locking mechanism includes a fixing plate fixed to the door, a locking plate fixed on the fixing plate, and a first limiting hole and a second limiting hole provided on the locking plate.

[0010] The self-locking mechanism also includes a U-shaped plate fixed to the outer shell. The locking plate is rotatably connected to the U-shaped plate. An mounting plate is fixed on the U-shaped plate. The U-shaped plate is fixed to the outer shell through the mounting plate. A sliding groove is provided on the U-shaped plate.

[0011] A return plate is slidably connected inside the U-shaped plate via a guide assembly. The guide assembly includes a guide rod and a guide groove. The guide rod is fixed to the return plate, and the guide groove is formed on the U-shaped plate. The U-shaped plate and the return plate are slidably connected through the cooperation of the guide groove and the guide rod. A slide rod is fixed on the return plate and slides in contact with the slide groove, and the slide rod extends to both sides of the U-shaped plate.

[0012] A compression spring assembly is provided between the U-shaped plate and the U-shaped plate. The compression spring assembly includes a first spring seat fixed to the U-shaped plate, a second spring seat fixed to the U-shaped plate, and a compression spring fixed between the first spring seat and the second spring seat.

[0013] The outer casing and the door are provided with magnetic components, the magnetic components include an iron plate fixed to the door, and magnets are fixed on the outer casing at positions corresponding to the iron plate.

[0014] This utility model provides a natural gas protection pressure regulating box, which has the following beneficial effects:

[0015] 1. When the outer casing of this natural gas protection pressure regulating box needs to be removed, it can be easily and quickly removed by unscrewing the bolts between the outer casing and the base plate. When it is necessary to open the box door, rotate the box door, and the box door will push the slide rod through the fixed plate, locking plate, and second limit hole, so that the slide rod is no longer limited by the locking plate. At this time, the box door can be opened. Continue to rotate the box door, and when the first limit hole is rotated to the position of the slide rod, the slide rod is locked into the first limit hole under the action of the compression spring, thereby completing the locking of the locking plate, fixed plate, and box door. At this time, the box door is in the locked state, effectively reducing the risk of the box door automatically closing under the action of external force. Attached Figure Description

[0016] Figure 1This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the outer shell and base plate structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the box assembly structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the fixing plate and the U-shaped plate structure of this utility model.

[0020] Explanation of reference numerals in the attached figures

[0021] 1. Base assembly; 101. Base plate; 102. Gas pipe hole; 103. Connecting plate;

[0022] 2. Enclosure components; 201. Outer shell; 202. Mounting holes; 203. Ventilation slots; 204. Rain cover; 205. Enclosure door;

[0023] 3. Self-locking mechanism; 301. Fixing plate; 302. Locking plate; 3021. First limiting hole; 3022. Second limiting hole; 303. U-shaped plate; 3031. Mounting plate; 3032. Slide groove; 3033. Guide groove; 304. Reverse plate; 3041. Slide rod; 3042. Guide rod;

[0024] 4. Compression spring assembly; 401. First spring seat; 402. Second spring seat; 403. Compression spring;

[0025] 5. Magnetic components; 501. Iron plate; 502. Magnet. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0027] Please see Figures 1-4 This utility model provides a natural gas protection pressure regulating box, including a base assembly 1. The base assembly 1 includes a base plate 101, on which a gas pipe hole 102 is opened. A connecting plate 103 is fixed on the base plate 101. The outer shell 201 is slidably sleeved on the base plate 101 and the connecting plate 103. The connecting plate 103 is used to fix it to the wall. The outer shell 201 can slide between the base plate 101 and the connecting plate 103, thereby facilitating the disassembly and installation of the outer shell 201.

[0028] Please refer to this carefully. Figure 1and Figure 2 The base assembly 1 is provided with a detachable box assembly 2. The box assembly 2 includes an outer shell 201 and a door 205. The box assembly 2 also includes mounting holes 202, which are formed on the outer shell 201 and the bottom plate 101. The bottom plate 101 and the outer shell 201 are fixed together by mounting holes 202 and bolts. The left and right sides of the outer shell 201 are provided with evenly distributed ventilation slots 203. The top of the outer shell 201 is fixed with a rain cover 204.

[0029] Please refer to this carefully. Figure 1 , Figure 3 and Figure 4 A self-locking mechanism 3 for locking the door 205 is provided between the outer shell 201 and the door 205. The self-locking mechanism 3 includes a fixing plate 301 fixed to the door 205, and a locking plate 302 fixed on the fixing plate 301. The locking plate 302 has a first limiting hole 3021 and a second limiting hole 3022. The depth of the first limiting hole 3021 is greater than the diameter of the slide bar 3041, and the depth of the second limiting hole 3022 is less than the radius of the slide bar 3041. When the door 205 drives the fixing plate 301 and the locking plate 302 to rotate, the locking plate 302 and the fixing plate 301 will not be blocked by the outer shell 201. The locking plate 302 is rotatably connected to the U-shaped plate 303.

[0030] The self-locking mechanism 3 also includes a U-shaped plate 303 fixed to the outer shell 201. A mounting plate 3031 is fixed on the U-shaped plate 303. The U-shaped plate 303 is fixed to the outer shell 201 through the mounting plate 3031. A sliding groove 3032 is provided on the U-shaped plate 303.

[0031] A return plate 304 is slidably connected inside the U-shaped plate 303 via a guide assembly. The guide assembly includes a guide rod 3042 and a guide groove 3033. The guide rod 3042 is fixed to the return plate 304, and the guide groove 3033 is formed on the U-shaped plate 303. The U-shaped plate 303 and the return plate 304 are slidably connected through the cooperation of the guide groove 3033 and the guide rod 3042. A slide rod 3041 is fixed on the return plate 304 and slides in contact with the slide groove 3032. The slide rod 3041 extends to both sides of the U-shaped plate 303.

[0032] Please refer to this carefully. Figure 4 A compression spring assembly 4 is provided between the return plate 304 and the U-shaped plate 303. The compression spring assembly 4 includes a first spring seat 401 fixed to the U-shaped plate 303, a second spring seat 402 fixed on the return plate 304, and a compression spring 403 fixed between the first spring seat 401 and the second spring seat 402. The elastic force of the compression spring 403 can drive the second spring seat 402, the return plate 304, and the slide rod 3041 to move, so that the slide rod 3041 moves away from the first spring seat 401.

[0033] Please refer to this carefully. Figure 1 A magnetic assembly 5 is provided on the outer shell 201 and the door 205. The magnetic assembly 5 includes an iron plate 501 fixed to the door 205 and a magnet 502 fixed on the outer shell 201 with a position corresponding to the iron plate 501. The cooperation between the iron plate 501 and the magnet 502 can improve the firmness of the outer shell 201 and the door 205 when they are closed.

[0034] Working principle: When maintenance personnel need to disassemble the outer casing 201, they first remove the bolts used to fix the outer casing 201 and the base plate 101, and then slide the outer casing 201 upward to remove it, so that maintenance personnel can work quickly and easily.

[0035] When maintenance personnel need to open the enclosure door 205, they first rotate the enclosure door 205. The enclosure door 205 will push the slide rod 3041 through the fixing plate 301, locking plate 302, and second limiting hole 3022, so that the slide rod 3041 moves in the slide groove 3032. The return plate 304 will also slide under the action of the slide rod 3041. The guide rod 3042 will also move in the guide groove 3033. The compression spring 403 will deform under the compression of the second spring seat 402. Through the elastic force, the slide rod 3041 can always be pressed against the side of the locking plate 302. After the slide rod 3041 moves out of the second limiting hole 3022, the slide rod 3041 will no longer limit the locking plate 302. At this time, the enclosure door 205 can be opened.

[0036] Continue rotating the door 205. When the first limiting hole 3021 rotates to the position of the slide bar 3041, the slide bar 3041 is engaged in the first limiting hole 3021 under the elastic force of the compression spring 403, thereby completing the locking of the locking plate 302, the fixing plate 301, and the door 205. At this time, the door 205 is in a locked state, effectively reducing the risk of the door 205 automatically closing under external force.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A natural gas protection pressure regulating box, comprising a base assembly (1), characterized in that: The base assembly (1) is provided with a detachable housing assembly (2). The housing assembly (2) includes a housing (201) and a door (205), and a self-locking mechanism (3) for locking the door (205) is provided between the housing (201) and the door (205). The self-locking mechanism (3) includes a fixing plate (301) fixed to the box door (205), a locking plate (302) fixed on the fixing plate (301), and a first limiting hole (3021) and a second limiting hole (3022) opened on the locking plate (302). The self-locking mechanism (3) also includes a U-shaped plate (303) fixed to the outer shell (201), the locking plate (302) is rotatably connected to the U-shaped plate (303), and the U-shaped plate (303) is provided with a sliding groove (3032). A return plate (304) is slidably connected inside the U-shaped plate (303) via a guide assembly. A slide rod (3041) is fixed on the return plate (304) and slides in sliding contact with the slide groove (3032). The slide rod (3041) extends to both sides of the U-shaped plate (303). A compression spring assembly (4) is provided between the return plate (304) and the U-shaped plate (303).

2. A natural gas protection pressure regulating box according to claim 1, characterized in that: The base assembly (1) includes a base plate (101), on which a gas pipe hole (102) is provided, and a connecting plate (103) is fixed on the base plate (101). The outer shell (201) is slidably sleeved on the base plate (101) and the connecting plate (103).

3. A natural gas protection pressure regulating box according to claim 2, characterized in that: The housing assembly (2) also includes mounting holes (202), which are formed on the outer shell (201) and the base plate (101). The base plate (101) and the outer shell (201) are fixed together by mounting holes (202) and bolts.

4. A natural gas protection pressure regulating box according to claim 1, characterized in that: The outer casing (201) has evenly distributed ventilation slots (203) on its left and right sides, and a rain cover (204) is fixed on the top of the outer casing (201).

5. A natural gas protection pressure regulating box according to claim 1, characterized in that: The guiding assembly includes a guide rod (3042) and a guide groove (3033). The guide rod (3042) is fixed to the U-shaped plate (304), and the guide groove (3033) is opened on the U-shaped plate (303). The U-shaped plate (303) and the U-shaped plate (304) are slidably connected by the cooperation of the guide groove (3033) and the guide rod (3042).

6. A natural gas protection pressure regulating box according to claim 1, characterized in that: The U-shaped plate (303) is fixed with an mounting plate (3031), and the U-shaped plate (303) is fixed to the outer shell (201) through the mounting plate (3031).

7. A natural gas protection pressure regulating box according to claim 1, characterized in that: The compression spring assembly (4) includes a first spring seat (401) fixed to the U-shaped plate (303), a second spring seat (402) fixed on the U-shaped plate (304), and a compression spring (403) fixed between the first spring seat (401) and the second spring seat (402).

8. A natural gas protection pressure regulating box according to claim 1, characterized in that: The outer shell (201) and the door (205) are provided with magnetic components (5), the magnetic components (5) include an iron plate (501) fixed to the door (205), and a magnet (502) with a position corresponding to the iron plate (501) is fixed on the outer shell (201).

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