A gas self-closing valve's buried box

Abstract

The utility model discloses a kind of buried box of gas self-closing valve, including box body, end cap rotationally connected above box body, bottom plate installed in box body interior and adjusting mechanism being arranged at the bottom of box body, for adjusting the installation position of gas self-closing valve, further include the connecting mechanism being arranged at the side of end cap, for end cap and box body fixed connection;Through two-way screw rod A drive crossbeam longitudinal movement, through two-way screw rod B drive longitudinal beam transverse movement, both cooperate, position the slider, so that the buried box of gas self-closing valve can be for the position of different specifications self-closing valve mounting seat to mounting seat when installing gas valve Large-scale adjustment is carried out, while two-way screw rod A, two-way screw rod B can drive multiple mounting seat transverse adjustment and longitudinal adjustment synchronous, ensure that multiple specifications gas self-closing valve is always installed in the middle position of buried box, and the functionality of the buried box of gas self-closing valve is enriched.

Description

Technical Field

[0001] This utility model relates to the technical field of concealed boxes for gas self-closing valves, and in particular to a concealed box for a gas self-closing valve. Background Technology

[0002] A concealed gas shut-off valve box is a pre-embedded device for the concealed installation of gas shut-off valves. It mainly consists of a corrosion-resistant metal box (such as 304 stainless steel), a removable access cover, a sealing ring, and a mounting bracket. Its core features include a double-layer sealing structure (mechanical seal + rubber gasket) to ensure airtightness, an internal guide groove for quick engagement with the gas shut-off valve, and integrated pressure detection and pressure relief channels. Expansion bolt mounting holes are provided around the box to accommodate 10-15cm wall grooves, and an operating window is provided at the top for easy valve maintenance. It complies with GB50028 gas installation specifications, combining concealment, safety, and ease of maintenance, and is widely applicable to gas pipeline installation scenarios such as residential kitchens where aesthetics and safety are equally important.

[0003] In the prior art, Chinese utility model patent CN222772743U provides a concealed box for a gas self-closing valve, including a box body and a protective shell mounted on the box body. An adjustment component is located at the bottom of the box body, and a quick-release component is located on the side of the box body. This concealed box for a gas self-closing valve allows a slider to slide along the inner wall of a fixed frame by rotating a threaded rod. This allows adjustment of the distance between the slider and the bolt hole according to different specifications of self-closing valves, reducing installation complexity. Furthermore, pulling a rod moves an annular plate, which compresses a telescopic spring, generating elasticity. This elasticity allows the rod to be inserted into the limiting holes of the box body and the protective shell for quick installation. Conversely, it allows for disassembly, avoiding the need for workers to spend more time and effort removing and reinstalling the protective shell when valve problems occur.

[0004] The problems with existing technologies are as follows: the existing concealed boxes for some gas self-closing valves have a small range of adjustment for the mounting seats of different specifications of self-closing valves during the installation of gas valves and cannot be adjusted synchronously, which cannot guarantee that gas self-closing valves of various specifications are always installed in the middle position of the concealed box.

[0005] Therefore, there is an urgent need for a concealed box for a gas self-closing valve. Utility Model Content

[0006] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a concealed box for a gas self-closing valve.

[0007] The technical problem solved by this utility model is achieved through the following technical solution: a concealed box for a gas self-closing valve, comprising a box body, an end cap rotatably connected to the top of the box body, a base plate installed inside the box body, and an adjustment mechanism set at the bottom of the box body for adjusting the installation position of the gas self-closing valve. It also includes a connecting mechanism set on one side of the end cap for fixing the end cap to the box body. The adjustment mechanism includes a bidirectional lead screw A, which is rotatably connected to the middle position of the box body. A crossbeam is driven to both ends of the bidirectional lead screw A. A track is fixedly installed above the crossbeam. A slider is provided on the inner wall of the track. A mounting seat is provided above the slider. A bidirectional lead screw B is provided above the bidirectional lead screw A. A drive block is driven to both ends of the bidirectional lead screw B. A longitudinal beam is fixedly installed above the drive block.

[0008] As a further embodiment of this utility model: the connecting mechanism includes a bracket, which is fixed to one end of the end cover by bolts. A rotating arm A is provided on the inner wall of the bracket. A return spring is fixedly installed below the rotating arm A. A rotating arm B is fixedly installed on the free end of the return spring. A connecting plate is fixedly installed on the outer wall of the box. Multiple L-shaped grooves are evenly cut inside the connecting plate. A locking block is provided in the middle position of the rotating arm B.

[0009] As a further embodiment of this utility model: an installation mechanism is provided above the base plate for installing the gas self-closing valve. The installation mechanism includes a base, which is fixed to the middle position of the base plate by bolts. A gas valve is fixedly installed above the base. Rotary shafts are fixedly installed at both ends of the box body, and a baffle is provided at one end of the rotating shaft.

[0010] As a further improvement of this utility model: guide rods are provided at both ends of the crossbeam, and slots are cut at both ends of the longitudinal beam, with a sliding plate provided on the inner wall of the slot.

[0011] As a further improvement of this utility model: limit plates are fixedly installed at both ends of the track, a threaded groove is cut in the middle of the mounting base, and a screw is threadedly connected to the inner wall of the threaded groove.

[0012] As a further improvement of this utility model: an observation window is fixedly installed in the middle of the end cap, and a sealing ring is fixedly installed on the inner wall of the end cap.

[0013] As a further embodiment of this utility model: one end of the bidirectional lead screw A is provided with a handle A, and one end of the bidirectional lead screw B is provided with a handle B.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0015] 1. By driving the crossbeam longitudinally with a two-way lead screw A, the longitudinal position of the slider is adjusted. By driving the longitudinal beam laterally with a two-way lead screw B, the lateral position of the slider is adjusted. The two work together to position the slider, allowing the concealed box of the gas self-closing valve to adjust the position of the mounting seat for different specifications of self-closing valves during gas valve installation. At the same time, the threads on both sides of the two-way lead screws A and B turn in opposite directions, which can drive the lateral and longitudinal adjustments of multiple mounting seats to be carried out simultaneously, ensuring that gas self-closing valves of various specifications are always installed in the middle position of the concealed box, thus enriching the functionality of the concealed box of the gas self-closing valve.

[0016] 2. By pulling the rotating arm B, the return spring will be used to pull the rotating arm B, so that the end cover and the box body are elastically connected. By inserting the selection block into the L-shaped groove at different positions, the connection force between the end cover and the box body can be adjusted to ensure the sealing performance of the sealing ring to the buried box of the gas self-closing valve while preventing the sealing ring from being pinched and damaged. Attached Figure Description

[0017] Figure 1 A side view structural schematic diagram according to an embodiment of the present utility model is shown;

[0018] Figure 2 A schematic diagram of the right sectional view of the structure according to an embodiment of the present invention is shown;

[0019] Figure 3 A partial structural schematic diagram according to an embodiment of the present utility model is shown;

[0020] Figure 4 The present invention provides an embodiment of the present invention. Figure 3 A magnified view of the structure at point A in the middle;

[0021] Figure 5 A schematic diagram of the front cross-sectional structure according to an embodiment of the present invention is shown;

[0022] Figure 6 The present invention provides an embodiment of the present invention. Figure 5 A magnified schematic diagram of the structure at point B in the middle.

[0023] Legend:

[0024] 100. Box body; 200. End cap; 300. Base plate; 400. Observation window; 500. Rotating handle A; 600. Rotating handle B;

[0025] 101. Double-acting lead screw A; 102. Crossbeam; 103. Rail; 104. Slider; 105. Mounting base; 106. Double-acting lead screw B; 107. Drive block; 108. Longitudinal beam; 110. Guide rod; 120. Slide plate; 121. Slot; 130. Limiting plate; 140. Threaded groove; 150. Screw;

[0026] 201. Bracket; 202. Rotary arm A; 203. Return spring; 204. Rotary arm B; 205. Connecting plate; 206. L-shaped groove; 207. Locking block; 210. Sealing ring;

[0027] 301. Base; 302. Gas valve; 303. Shaft; 304. Baffle. Detailed Implementation

[0028] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0029] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0031] Example 1: As Figure 1-6As shown, a concealed box for a gas self-closing valve includes a box body 100, an end cap 200 rotatably connected to the top of the box body 100, a base plate 300 installed inside the box body 100, and an adjustment mechanism disposed at the bottom of the box body 100 for adjusting the installation position of the gas self-closing valve. It also includes a connecting mechanism disposed on one side of the end cap 200 for fixing the end cap 200 to the box body 100. The adjustment mechanism includes a bidirectional lead screw A101, which is rotatably connected to the middle of the box body 100. At a certain position, a rotating handle A500 is welded to one end of the bidirectional lead screw A101, which drives the bidirectional lead screw A101 to rotate. A crossbeam 102 is connected to both ends of the bidirectional lead screw A101. Guide rods 110 are slidably connected to both ends of the crossbeam 102, limiting the movement trajectory of the crossbeam 102. A track 103 is bolted to the top of the crossbeam 102, and limit plates 130 are bolted to both ends of the track 103. The inner... A slider 104 is slidably connected to the wall, and a limiting plate 130 prevents the slider 140 from disengaging from the track 103. A mounting base 105 is welded above the slider 104, and a threaded groove 140 is cut in the middle of the mounting base 105. A screw 150 is threadedly connected to the inner wall of the threaded groove 140. The screw 150 mates with the threaded groove 140 to fix the base plate 300. A bidirectional lead screw B106 is rotatably connected above the bidirectional lead screw A101. The bidirectional lead screws A101 and B106 are connected to each other. The threads on both sides of the screw have opposite directions of rotation. One end of the bidirectional lead screw B106 is welded with a rotating handle B600, which drives the bidirectional lead screw B106 to rotate. Both ends of the bidirectional lead screw B106 are connected to drive blocks 107. A longitudinal beam 108 is fixed above the drive blocks 107 by bolts. Both ends of the longitudinal beam 108 are cut with slots 121. The inner wall of the slots 121 is slidably connected to a slide plate 120. The slots 121 slide along the slide plate 120 to limit the movement trajectory of the longitudinal beam 108.

[0032] In this embodiment, the longitudinal position of the slider 104 is adjusted by the longitudinal movement of the crossbeam 102 driven by the bidirectional lead screw A101, and the lateral position of the slider 104 is adjusted by the lateral movement of the longitudinal beam 108 driven by the bidirectional lead screw B106. The two work together to position the slider 104, so that the position of the mounting seat 105 can be adjusted over a wide range for different specifications of self-closing valve mounting seats when installing the gas self-closing valve in the buried box. At the same time, the threads on both sides of the bidirectional lead screw A101 and the bidirectional lead screw B106 are turned in opposite directions, which can drive the lateral and longitudinal adjustments of multiple mounting seats 105 to be carried out simultaneously, ensuring that gas self-closing valves of various specifications are always installed in the middle position of the buried box, thus enriching the functionality of the buried box of gas self-closing valve.

[0033] Example 2: As Figure 1-6 As shown, a concealed box for a gas self-closing valve includes a connecting mechanism comprising a bracket 201, which is bolted to one end of an end cap 200. A rotating arm A202 is rotatably connected to the inner wall of the bracket 201. A return spring 203 is bolted to the lower part of the rotating arm A202. A rotating arm B204 is bolted to the free end of the return spring 203, which pulls the rotating arm B204 with its elastic force. A connecting plate 205 is bolted to the outer wall of the box body 100. Multiple L-shaped grooves 206 are evenly cut inside the connecting plate 205. A locking block 207 is welded to the middle position of the rotating arm B204, and the locking block 207 can be inserted into the L-shaped grooves 206. An observation window 400 is bolted to the middle of the end cap 200. A sealing ring 210 is bolted to the inner wall of the end cap 200 to seal the end cap 200. An installation mechanism is provided above the base plate 300 for installing the gas self-closing valve. The installation mechanism includes a base 301, which is bolted to the middle of the base plate 300. A gas valve 302 is bolted to the top of the base 301. A rotating shaft 303 is bolted to both ends of the box 100. A baffle 304 is rotatably connected to one end of the rotating shaft 303. The baffle 304 can rotate along the rotating shaft 303 to open or close the box 100.

[0034] In this embodiment, by pulling the rotating arm B204, the return spring 203 is used to pull the rotating arm B204, so that the end cover 200 is elastically connected to the box body 100. By inserting the selection block 207 into the L-shaped groove 206 at different positions, the connection force between the end cover 200 and the box body 100 is adjusted, ensuring the sealing performance of the sealing ring 210 to the buried box of the gas self-closing valve while preventing the sealing ring 210 from being pinched and damaged.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A concealed box for a gas self-closing valve, characterized in that, It includes a housing (100), an end cap (200) rotatably connected to the top of the housing (100), a base plate (300) installed inside the housing (100), and an adjustment mechanism located at the bottom of the housing (100) for adjusting the installation position of the gas self-closing valve. It also includes a connecting mechanism disposed on one side of the end cap (200) for fixing the end cap (200) to the box body (100). The adjustment mechanism includes a bidirectional lead screw A (101), which is rotatably connected to the middle position of the box (100). The two ends of the bidirectional lead screw A (101) are connected to a crossbeam (102). A track (103) is fixedly installed above the crossbeam (102). A slider (104) is provided on the inner wall of the track (103). A mounting seat (105) is provided above the slider (104). A bidirectional lead screw B (106) is provided above the bidirectional lead screw A (101). A drive block (107) is connected to both ends of the bidirectional lead screw B (106). A longitudinal beam (108) is fixedly installed above the drive block (107).

2. The concealed box for a gas self-closing valve according to claim 1, characterized in that, The connecting mechanism includes a bracket (201), which is fixed to one end of the end cap (200) by bolts. A rotating arm A (202) is provided on the inner wall of the bracket (201). A return spring (203) is fixedly installed below the rotating arm A (202). A rotating arm B (204) is fixedly installed at the free end of the return spring (203). A connecting plate (205) is fixedly installed on the outer wall of the box (100). A plurality of L-shaped grooves (206) are evenly cut inside the connecting plate (205). A locking block (207) is provided in the middle position of the rotating arm B (204).

3. The concealed box for a gas self-closing valve according to claim 2, characterized in that, An installation mechanism is provided above the base plate (300) for installing the gas self-closing valve. The installation mechanism includes a base (301), which is fixed to the middle position of the base plate (300) by bolts. A gas valve (302) is fixedly installed on the top of the base (301). A rotating shaft (303) is fixedly installed at both ends of the box (100), and a baffle (304) is provided at one end of the rotating shaft (303).

4. The concealed box for a gas self-closing valve according to claim 1, characterized in that, The crossbeam (102) is provided with guide rods (110) at both ends, and the longitudinal beam (108) is cut with slots (121) at both ends, and the inner wall of the slots (121) is provided with a sliding plate (120).

5. The concealed box for a gas self-closing valve according to claim 1, characterized in that, Limiting plates (130) are fixedly installed at both ends of the track (103), and a threaded groove (140) is cut in the middle of the mounting base (105). A screw (150) is threadedly connected to the inner wall of the threaded groove (140).

6. The concealed box for a gas self-closing valve according to claim 1, characterized in that, An observation window (400) is fixedly installed in the middle of the end cap (200), and a sealing ring (210) is fixedly installed on the inner wall of the end cap (200).

7. The concealed box for a gas self-closing valve according to claim 1, characterized in that, One end of the bidirectional lead screw A (101) is provided with a handle A (500), and one end of the bidirectional lead screw B (106) is provided with a handle B (600).

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