Mounting structure of air inlet and exhaust valve in limited space

Abstract

The invention relates to the technical field of auxiliary mounting of exhaust valves, in particular to a mounting structure of an intake and exhaust valve in a limited space, which comprises a buried water pipe, an exhaust pipe is fixedly connected to the top of the buried water pipe, and a mounting and fixing device is fixedly mounted at the top of the exhaust pipe. An exhaust valve body is mounted at the top of the exhaust pipe through a mounting and supporting device; the installation supporting and fixing device comprises a fixing ring, and the fixing ring is fixedly installed at the upper end of the exhaust pipe. During use, the linkage guide plate can be driven to rotate by rotating the operation handrail, the linkage guide plate extrudes the linkage guide arm to enable the movable block to move outwards, the upper clamping arm is driven to move outwards and compress the limiting spring, the exhaust valve body is inserted at the moment, then the operation handrail is loosened, the limiting spring is reset, the upper clamping arm moves inwards, and the clamping block is inserted into the clamping groove to complete installation. And during dismounting, the operating handrail is rotated, so that the clamping block is separated from the clamping groove, the valve body of the exhaust valve can be quickly dismounted, and convenient dismounting operation is realized.

Description

Technical Field

[0001] The present application relates to the technical field of exhaust valve auxiliary installation, and in particular to an installation structure of an intake and exhaust valve in a confined space. Background Art

[0002] In today's water pipeline engineering field, intake and exhaust valves are key components to ensure the stable operation of the pipeline system. Their installation method and performance are directly related to the reliability of the entire water supply network. Traditional installation methods for intake and exhaust valves are relatively simple, usually directly installing the intake and exhaust valves on the water pipeline. Under normal circumstances, this installation method can still meet basic needs. However, its disadvantages are exposed in special environments. For example, when the pipeline is laid along a road or river, it is often difficult to directly install the intake and exhaust valves in the conventional way due to the limited burial depth or limited space. On the one hand, forced installation is not only time-consuming and labor-intensive, but may also fail to ensure the installation quality, which in turn affects the normal operation of the pipeline. For example, air cannot be effectively discharged, causing air blockage that affects water transmission efficiency and even triggering water hammer, posing a serious threat to the stability of the pipeline system. On the other hand, the existing technology lacks corresponding support and reinforcement structure in the installation of intake and exhaust valves. The intake and exhaust valves are only fixed to the pipeline by simple bolt connection or threaded connection. This connection method is prone to loosening under the influence of long-term water flow impact, vibration and external environmental factors, reducing the stability of the connection between the intake and exhaust valves and the pipeline, which not only affects the normal function of the valve, but also may cause safety hazards such as pipeline leakage. At the same time, this installation method is extremely inconvenient for the daily maintenance and replacement of the intake and exhaust valves. When the intake and exhaust valves need to be inspected or replaced, the staff need to spend a lot of time and energy to remove many bolts. The operation process is cumbersome and complicated, which greatly increases the maintenance cost and difficulty, and seriously affects the maintenance efficiency and operation continuity of the water supply pipeline system. It can be seen that the existing technology has certain defects and shortcomings, and therefore needs to be improved and designed. Summary of the Invention

[0003] In order to improve the installation stability and convenience during the application of the existing technology, the present application provides an installation structure for an intake and exhaust valve in a confined space.

[0004] The present application provides a confined space air intake and exhaust valve installation structure, which adopts the following technical solution: comprising an underground water pipe, the top of which is fixedly connected to an exhaust pipe, the top of which is fixedly mounted with an installation support device, and the top of which is mounted with an exhaust valve body via the installation support device; The mounting and supporting device includes a fixing ring, which is fixedly installed on the upper end of the exhaust pipe. A base frame is fixedly installed on one side of the fixing ring. Limiting mechanisms are provided at both ends of the interior of the base frame. The bottom of the exhaust valve body is inserted into the top of the exhaust pipe. The two sides of the exhaust valve body are clamped with the upper end of the limiting mechanism. The bottom of the fixing ring is clamped with a supporting and reinforcing mechanism through the limiting mechanism. The supporting and reinforcing mechanism is sleeved on the outside of the exhaust pipe.

[0005] Optionally, the underground water pipe is arranged in a shape, and an underground fixing plate is fixedly installed at the corner of the underground water pipe.

[0006] Optionally, an underground frame is fixedly installed on the bottom of the underground fixing plate at equal intervals and arranged in a semi-arc shape, and an underground anti-slip plate is fixedly installed on the bottom of the underground frame.

[0007] Optionally, the limiting mechanism includes a snap-in groove and a limiting spring, the snap-in groove is opened at the lower ends of both sides of the exhaust valve body, the limiting spring is fixedly connected to the two ends inside the base frame, the outer end of the limiting spring is fixedly connected to a movable block, the top of the movable block is fixedly installed with an upper clamping arm, the inner side of the upper end of the upper clamping arm is fixedly connected with a snap-in block, and the snap-in block is inserted and clamped into the inside of the snap-in groove.

[0008] Optionally, a lower clamping arm is fixedly installed on the bottom of the movable block, and the inner lower end of the lower clamping arm is fixedly connected to a limiting block, and the limiting block is clamped with the supporting reinforcement mechanism.

[0009] Optionally, a linkage guide plate is rotatably connected to the middle part of the outer side of the base frame, and a linkage guide arm is fixedly connected to the side of the movable block close to the linkage guide plate. The linkage guide plate is vertically arranged, and the two sides of the linkage guide plate are fit-connected to the inner end of the linkage guide arm.

[0010] Optionally, an operating armrest is fixedly connected to the outer side of the linkage guide plate, the operating armrest is arranged in a T-shape, and the linkage guide plate is arranged in an elliptical shape.

[0011] Optionally, the support and reinforcement mechanism includes two semi-arc rings, the rear sides of the two semi-arc rings are hinged to each other through a hinge, a limiting groove is opened in the middle part of the outer side of the semi-arc ring, the end of the limiting block is inserted into the inside of the limiting groove, the bottom of the semi-arc ring is fixedly connected to an arc rail, and the inside of the arc rail is slidably connected with three groups of support and reinforcement components.

[0012] Optionally, the inner side of the semi-arc ring is fixedly connected with telescopic springs arranged in an arc shape at equal intervals, the inner end of the telescopic spring is fixedly connected with an anti-slip arc plate, and the inner side of the anti-slip arc plate is fit-connected to the outer surface of the exhaust pipe.

[0013] The top end of the sliding sleeve is fixedly provided with a toothed connecting strip which is cooperatively connected with the toothed connecting strip, and the bottom end of the sliding sleeve is fixedly provided with a toothed connecting strip which is cooperatively connected with the toothed connecting strip.

[0014] In summary, this application has the following beneficial technical effects: The device is provided with a support and reinforcement mechanism, so that when in use, the underground water pipe can be buried at the bottom of the green belt first, and the exhaust pipe can be extended outside the green belt. Then, the underground fixing plate, the underground frame and the underground anti-skid plate are buried underground together to stabilize the exhaust pipe below the green belt. After the underground burial is completed, the exhaust valve body and the support and reinforcement mechanism are installed using the limit mechanism. After the support and reinforcement mechanism is installed, the sliding block can be adjusted to slide in the arc rail to adjust the position of the sleeve and the support rod, and the limiting screw is tightened to fix the sliding block. Then, the sleeve is rotated to adjust the angle of the support and reinforcement mechanism, and the anti-skid mounting plate is fixed with bolts and anchor rods. Then, the mounting screw is tightened to fix the support and reinforcement mechanism, so that the semi-arc ring stably covers the exhaust pipe. This adjustable design can flexibly adapt to different installation environments and enhances the stability and convenience of the device installation. By setting a limit mechanism, the device can be installed during use by first rotating the operating armrest to drive the linkage guide plate to rotate. The linkage guide plate squeezes the linkage guide arm to move the movable block outward, driving the upper clamping arm to move outward and compressing the limit spring. At this time, the exhaust valve body is inserted. Then, the operating armrest is released, the limit spring is reset, the upper clamping arm moves inward, and the clamping block is inserted into the clamping groove to complete the installation. When removing, the operating armrest is rotated to disengage the clamping block from the clamping groove, so that the exhaust valve body can be quickly removed, realizing convenient disassembly and assembly operations. During the application of this device, the limit mechanism can be used to conveniently install the support and reinforcement mechanism. During use, the operating armrest can be rotated to push the movable block to squeeze the lower clamping arm outward, and the two semi-arc rings connected by the hinge are flipped and sleeved on the outside of the exhaust pipe to allow the anti-slip arc plate to fit the exhaust pipe. The position of the semi-arc ring is adjusted so that the limit block is aligned with the limit groove, the operating armrest is loosened, and the limit block is inserted into the limit groove to complete the installation of the support and reinforcement mechanism. When removing, the operating armrest is rotated to disengage the limit block from the limit groove, and the semi-arc ring can be unfolded to remove the support and reinforcement mechanism. This device can quickly install and remove the support and reinforcement mechanism and the exhaust valve body, and has good stability and installation convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the embodiment of the present application; Figure 2 This is a schematic diagram of the rear view structure in an embodiment of the present application; Figure 3 This is a schematic diagram of the overall structure of the mounting support device in the embodiment of the present application; Figure 4 This is a schematic diagram of the disassembled structure of the mounting support device in the embodiment of the present application; Figure 5 This is a front structural diagram of the supporting and reinforcing mechanism in an embodiment of the present application; Figure 6 This is a bottom-up structural diagram of the supporting and reinforcing mechanism in an embodiment of the present application; Figure 7 This is an embodiment of the present application Figure 6 A schematic diagram of the enlarged structure at point A; Figure 8 This is a schematic structural diagram of the combined state of the limiting mechanism and the base frame in an embodiment of the present application; Figure 9 It is a schematic diagram of the structure of the limiting mechanism in the embodiment of the present application.

[0016] Reference numerals: 1, underground water pipe; 2, exhaust pipe; 3, mounting support device; 31, fixing ring; 32, base frame; 33, limiting mechanism; 331, clamping groove; 332, limiting spring; 333, movable block; 334, upper clamping arm; 335, clamping block; 336, lower clamping arm; 337, limiting block; 338, linkage guide plate; 339, linkage guide arm; 3310, operating handrail; 34, supporting reinforcement mechanism; 341, semi-arc ring; 342, limiting groove; 34 3. Arc rail; 344. Telescopic spring; 345. Anti-skid arc plate; 346. Support reinforcement assembly; 3461. Sliding block; 3462. Articulated seat; 3463. Sleeve; 3464. Support rod; 3465. Anti-skid mounting plate; 3466. Mounting screw; 3467. Clamping hole; 3467. Fixing piece; 3468. Limiting screw; 3469. Limiting hole; 4. Exhaust valve body; 5. Underground fixing plate; 6. Underground frame; 7. Underground anti-skid plate; 8. Articulated piece. DETAILED DESCRIPTION

[0017] The following is combined with Figure 1-9 This application is described in further detail.

[0018] The embodiment of the present application discloses a mounting structure for an air intake and exhaust valve in a confined space. Figure 1-9 As shown, it includes an underground water pipe 1, the top of the underground water pipe 1 is fixedly connected to an exhaust pipe 2, the top of the exhaust pipe 2 is fixedly installed with a mounting support device 3, and the top of the exhaust pipe 2 is installed with an exhaust valve body 4 through the mounting support device 3; The installation support device 3 includes a fixing ring 31, which is fixedly installed on the upper end of the exhaust pipe 2. A base frame 32 is fixedly installed on one side of the fixing ring 31. Limiting mechanisms 33 are provided at both ends of the inner part of the base frame 32. The bottom of the exhaust valve body 4 is inserted into the top of the exhaust pipe 2. The two sides of the exhaust valve body 4 are clamped with the upper end of the limiting mechanism 33. The bottom of the fixing ring 31 is clamped with a supporting reinforcement mechanism 34 through the limiting mechanism 33. The supporting reinforcement mechanism 34 is sleeved on the outside of the exhaust pipe 2. When the installation structure of the confined space air inlet and exhaust valve is working, the buried water pipe 1 can be laid first, and the exhaust pipe 2 connected to its top is used as a gas flow channel. The fixing ring 31 in the installation support device 3 is pre-fixed on the upper end of the exhaust pipe 2 to play a basic connection role. The base frame 32 is fixed to one side of the fixing ring 31, and the limiting mechanisms 33 at both ends of the base frame play a key role. When installing the exhaust valve body 4, its bottom is inserted into the top of the exhaust pipe 2, and the limiting mechanism 33 is clamped with the two sides of the exhaust valve body 4, so as to firmly install the exhaust valve body 4. At the same time, the bottom of the fixing ring 31 is clamped with the installation support and reinforcement mechanism 34 with the help of the limiting mechanism 33, and the support and reinforcement mechanism 34 is sleeved on the outside of the exhaust pipe 2. In this way, the limiting mechanism 33 can not only realize the installation and fixation of the exhaust valve body 4, but also complete the installation of the support and reinforcement mechanism 34, ensuring that the entire intake and exhaust valve installation structure operates stably in a confined space, ensuring the normal operation of the exhaust valve, and the support and reinforcement mechanism 34 supports and reinforces the exhaust pipe 2, thereby improving the structural stability.

[0019] Please refer to Figures 1-8The bottom of the movable block 333 is fixedly installed with a lower card arm 336, and the inner lower end of the lower card arm 336 is fixedly connected to the limiting block 337. The limiting block 337 is clamped with the supporting reinforcement mechanism 34, and the supporting reinforcement mechanism 34 includes two semi-arc rings 341. The rear sides of the two semi-arc rings 341 are hinged to each other through a hinge 8. A limiting groove 342 is provided in the middle part of the outer side of the semi-arc ring 341. The end of the limiting block 337 is inserted into the inner part of the limiting groove 342. The bottom of the semi-arc ring 341 is fixedly connected with an arc rail 343. The inner part of the arc rail 343 is slidably connected with three groups of supporting reinforcement components 346. The inner side of the semi-arc ring 341 is evenly spaced and fixedly connected with a telescopic spring 344. The inner end of the telescopic spring 344 is fixedly connected with an anti-slip arc plate 345 The inner side of the anti-skid arc plate 345 is fitted with the outer surface of the exhaust pipe 2, and the supporting reinforcement component 346 includes a sliding block 3461, which is slidably connected to the inside of the arc-shaped rail 343, and the bottom of the sliding block 3461 is fixedly connected to a hinge seat 3462. The bottom of the sliding block 3461 is hinged with a sleeve 3463 through the hinge seat 3462. The interior of the sleeve 3463 is slidably connected to a supporting rod 3464, and the bottom of the supporting rod 3464 is fixedly installed with an anti-skid mounting plate 3465. Countersunk holes are arranged in a ring at equal intervals on the anti-skid mounting plate 3465. The lower end of one side of the sleeve 3463 is threadedly connected to a mounting screw 3466. The end of the mounting screw 3466 passes through the sleeve 3463. The outer surface of the supporting rod 3464 is fixedly installed with an anti-skid mounting plate 3465. The spaced apart arrangement of the clamping holes 3467 is provided, and the ends of the mounting screws 3466 are inserted into the inner portions of the clamping holes 3467. The outer upper end of the sliding block 3461 is fixedly connected with a fixing piece 3467, and the fixing piece 3467 is slidably connected to the outer side of the arc-shaped rail 343. The outer middle portion of the fixing piece 3467 is threadedly connected with a limiting screw 3468. The outer side of the arc-shaped rail 343 is provided with limiting holes 3469 arranged in an arc shape at equal intervals. The ends of the limiting screws 3468 pass through the fixing pieces 3467 and are inserted into the inner portions of the limiting holes 3469. Both the limiting screws 3468 and the mounting screws 3466 are configured as hand-tightening screws. When the support reinforcement mechanism 34 needs to be installed during use of the device, first, the two semi-arc rings 341 hinged to each other at their rear sides by the hinge 8 are The exhaust pipe 2 is flipped around so that the semi-arc ring 341 is sleeved on the outside of the exhaust pipe 2. At this time, the telescopic spring 344 on the inside of the semi-arc ring 341 pushes the anti-slip arc plate 345 to fit tightly against the outer surface of the exhaust pipe 2, playing a preliminary stabilizing role. Then, by rotating the operating arm 3310, the linkage guide plate 338 is driven to rotate, squeezing the linkage guide arm 339, so that the movable block 333 moves outward, driving the lower clamping arm 336 and the limit block 337 to move outward, adjusting the position of the semi-arc ring 341, aligning the limit block 337 with the limit groove 342 opened in the middle part of the outer side of the semi-arc ring 341, loosening the operating arm 3310, the limit spring 332 is reset, pulling the movable block 333 to move inward, and the lower clamping arm 336 moves accordingly, so that the limit block 337 is inserted into the limit groove 342.After the semi-arc ring 341 is connected to the base frame 32, the support reinforcement mechanism 34 can be changed by adjusting the sliding block 3461 to slide in the arc-shaped rail 343, thereby adjusting the position of the sleeve 3463 and the support rod 3464. When the position is determined, the limiting screw 3468 is rotated to pass through the fixing piece 3467 and insert it into the limiting hole 3469 on the outside of the arc-shaped rail 343 to fix the sliding block 3461. After that, the sleeve 3463 can be rotated through the hinge seat 3462 to adjust the angle of the support rod 3464, and then the anti-slip mounting plate 3463 at the bottom of the support rod 3464 is installed. Align the countersunk holes on 65 with the appropriate positions and secure with bolts. If the length of the support rod 3464 needs to be adjusted, the mounting screw 3466 can be rotated to remove the end from the current locking hole 3467 and then reinserted into the locking hole 3467 on the outer surface of the support rod 3464 at the appropriate position. This allows for full adjustment of the support reinforcement mechanism 34, thereby firmly supporting the exhaust pipe 2 and ensuring its stable operation. The design of the support reinforcement mechanism 34 during overall use can help improve the overall stability of the exhaust pipe 2 during installation of this device, while also ensuring stable performance during subsequent installation.

[0020] Please refer to Figure 3-Figure 4 and Figure 8-Figure 9The limiting mechanism 33 includes a clamping groove 331 and a limiting spring 332. The clamping groove 331 is opened at the lower ends of both sides of the exhaust valve body 4. The limiting spring 332 is fixedly connected to the two ends of the base frame 32. The outer end of the limiting spring 332 is fixedly connected to a movable block 333. The top of the movable block 333 is fixedly installed with an upper clamping arm 334. The inner side of the upper end of the upper clamping arm 334 is fixedly connected with a clamping block 335. The clamping block 335 is inserted and clamped in the inner side of the clamping groove 331. The outer side of the base frame 32 The middle part of the side is rotatably connected to a linkage guide plate 338, and a linkage guide arm 339 is fixedly connected to the side of the movable block 333 close to the linkage guide plate 338. The linkage guide plate 338 is vertically arranged, and the two sides of the linkage guide plate 338 are fitted and connected to the inner end of the linkage guide arm 339. The outer side of the linkage guide plate 338 is fixedly connected to an operating armrest 3310. The operating armrest 3310 is T-shaped, and the linkage guide plate 338 is elliptical. When the limiting mechanism 33 of the device is working When the cam 333 is in the closed position, the upper latch 334 is pressed against the upper end of the latch 335, and the upper latch 335 is pressed against the lower end of the latch 335, so that the cam 333 is pushed outward and the upper latch 334 is pushed inward.

[0021] Please refer to Figure 1-Figure 4, the buried water pipe 1 is arranged in a shape, and the buried water pipe 1 is fixed with an underground fixing plate 5 at the corner. The bottom of the buried fixing plate 5 is fixed with an underground frame 6 arranged in a semi-arc shape at equal intervals. The bottom of the buried frame 6 is fixed with an underground anti-slip plate 7. During use, the corner of the pipe is subjected to more complex forces and is easily displaced or damaged by factors such as water flow impact and ground subsidence. The buried fixing plate 5 is in contact with the soil through the buried frame 6 fixed at its bottom in an equal-interval semi-arc arrangement. The semi-arc arrangement can evenly disperse the forces. The buried frame 6 connects the buried fixed plate 5 and the buried anti-skid plate 7 to transmit the upper pressure to the lower part. The buried anti-skid plate 7 further increases the friction with the soil. When the buried water pipe 1 is subjected to external forces such as water flow impact and displacement of surrounding soil, the buried anti-skid plate 7 resists these external forces with its greater friction, and works together with the buried frame 6 and the buried fixed plate 5 to prevent the buried water pipe 1 from displacement and deformation at the corners, ensuring the stable operation of the entire buried water pipe 1 system underground.

[0022] The implementation principle of the installation structure of the confined space air intake and exhaust valve in the embodiment of the present application is as follows: the device innovatively sets a support and reinforcement mechanism 34. In actual use, the underground water pipe 1 is first buried at the bottom of the green belt, and the exhaust pipe 2 is extended to the outside of the green belt. Subsequently, the underground fixing plate 5 and the underground frame 6 and the underground anti-skid plate 7 connected to the bottom are buried and installed underground. Through this operation, the underground fixing plate 5, the underground frame 6 and the underground anti-skid plate 7 can play an auxiliary supporting and fixing role for the exhaust pipe 2, ensuring that the exhaust pipe 2 The part below the green belt is in a stable state. After the buried part is installed, the exhaust valve body 4 and the supporting reinforcement mechanism 34 are installed using the limiting mechanism 33. After the supporting reinforcement mechanism 34 is installed in place, the sliding block 3461 can be adjusted to slide in the arc rail 343 to flexibly adjust the position of each sleeve 3463 and the supporting rod 3464, thereby achieving the adjustment of the supporting direction of the sleeve 3463 and the supporting rod 3464. After the adjustment is completed, the limiting screw 3468 is rotated to insert it into the limiting hole 3469 to complete the adjustment. After the sliding block 3461 is fixed, the sleeve 3463 on the inner side of the hinge seat 3462 is rotated to further adjust the rotation angle of the sleeve 3463 and the supporting rod 3464, so as to flexibly determine the supporting position and angle of the supporting reinforcement mechanism 34. After the adjustment is in place, the bolts and anchor rods are inserted into the countersunk holes of the anti-slip mounting plate 3465 to firmly fix the anti-slip mounting plate 3465 to the ground or the wall of the flower bed. Then, the mounting screw 3466 is tightened to insert it into the card hole 3467 to complete the fixing of each support. The fixing of the strengthening mechanism 34 is achieved by fixing each supporting and reinforcing mechanism 34, so that the semi-arc ring 341 can stably cover and install the exhaust pipe 2. When the exhaust pipe 2 is impacted, each sleeve 3463 and the supporting rod 3464 can provide auxiliary support and reinforcement to ensure that the exhaust pipe 2 remains stable. In addition, since the device adopts an adjustable design, it can flexibly adapt to different installation positions and angle requirements, significantly improving the stability and convenience of the overall installation of the device, so that the entire structure after the exhaust valve body 4 is installed has strong stability. The limiting mechanism 33 of the installation support device 3 equipped in this device greatly optimizes the installation and use process. During the installation process, the operating armrest 3310 is first rotated to drive the linkage guide plate 338 to rotate. Since the linkage guide plate 338 is a narrow and long elliptical shape, its rotation process will squeeze the linkage guide arm 339, prompting the linkage guide arm 339 to rotate, and then push the movable block 333 to move outward. The movement of the movable block 333 drives the upper clamping arm 334 to move outward and compresses the limiting spring 332 at the same time. At this time, the exhaust valve body 4 is inserted into the top of the exhaust pipe 2. After the exhaust valve body 4 is inserted, the operating armrest 3310 is released. The limit spring 332 is reset, pulling the movable block 333 to move inward, and the upper clamping arm 334 moves inward accordingly, driving the clamping block 335 to insert into the clamping groove 331, completing the clamping installation of the exhaust valve body 4. If the exhaust valve body 4 needs to be removed, the operating arm 3310 is rotated again, driving the guide block to squeeze the linkage guide arm 339, pushing the movable block 333 outward, prompting the upper clamping arm 334 to drive the two clamping blocks 335 to disengage from the clamping groove 331, releasing the clamping of the exhaust valve body 4, thereby realizing the removal of the exhaust valve body 4. This design enables the device to quickly realize the disassembly and assembly operation of the exhaust valve body 4 during use; When the cam 330 is in the closed position, the cam 331 is in the closed position, and the cam 332 is in the closed position, so that the cam 331 is in the closed position and the cam 332 is in the closed position. Insert the limit groove 342, and the mutual engagement of the limit block 337 and the limit groove 342 can realize the fast and stable installation of the support and reinforcement mechanism 34. When the support and reinforcement mechanism 34 needs to be removed, the operating armrest 3310 is rotated to drive the guide block to rotate, and the guide block squeezes the linkage guide arm 339 to push the movable block 333 outward, prompting the lower clamping arm 336 to move outward, so that the limit block 337 is disengaged from the limit groove 342. After the limit block 337 is separated from the limit groove 342, the semi-arc ring 341 is adjusted to rotate and unfold, and the semi-arc ring 341 and the entire support and reinforcement mechanism 34 connected thereto can be removed. The overall device is convenient for rapid installation and removal of the support and reinforcement mechanism 34 and the exhaust valve body 4, which significantly improves the convenience of use and has good stability and installation convenience.

[0023] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A mounting structure for an air inlet and exhaust valve in a confined space, characterized in that; Comprising an underground water pipe (1), the top of the underground water pipe (1) is fixedly connected to an exhaust pipe (2), the top of the exhaust pipe (2) is fixedly mounted with a mounting support device (3), and the top of the exhaust pipe (2) is mounted with an exhaust valve body (4) via the mounting support device (3); The mounting support device (3) comprises a fixing ring (31), the fixing ring (31) is fixedly mounted on the upper end of the exhaust pipe (2), a base frame (32) is fixedly mounted on one side of the fixing ring (31), both ends of the interior of the base frame (32) are provided with a limiting mechanism (33), the bottom of the exhaust valve body (4) is inserted into the top of the exhaust pipe (2), the two sides of the exhaust valve body (4) and the upper end of the limiting mechanism (33) are clamped, and a supporting reinforcement mechanism (34) is clamped and mounted on the bottom of the fixing ring (31) through the limiting mechanism (33), and the supporting reinforcement mechanism (34) is sleeved on the outer side of the exhaust pipe (2).

2. The installation structure of an air intake and exhaust valve in a confined space according to claim 1, characterized in that: The buried water pipe (1) is arranged in a shape, and a buried fixing plate (5) is fixedly installed at the corner of the buried water pipe (1).

3. The installation structure of an air intake and exhaust valve in a confined space according to claim 2, characterized in that: An underground frame (6) is fixedly mounted on the bottom of the underground fixing plate (5) at equal intervals and arranged in a semi-arc shape, and an underground anti-slip plate (7) is fixedly mounted on the bottom of the underground frame (6).

4. The installation structure of an air intake and exhaust valve in a confined space according to claim 1, characterized in that: The limiting mechanism (33) comprises a clamping groove (331) and a limiting spring (332), wherein the clamping groove (331) is provided at the lower ends of both sides of the exhaust valve body (4), and the limiting spring (332) is fixedly connected to the two ends inside the base frame (32), and the outer end of the limiting spring (332) is fixedly connected to a movable block (333), and an upper clamping arm (334) is fixedly installed on the top of the movable block (333), and the inner side of the upper end of the upper clamping arm (334) is fixedly connected to a clamping block (335), and the clamping block (335) is inserted and clamped inside the clamping groove (331).

5. The installation structure of an air intake and exhaust valve in a confined space according to claim 4, characterized in that: A lower clamping arm (336) is fixedly mounted on the bottom of the movable block (333); the inner lower end of the lower clamping arm (336) is fixedly connected to a limiting block (337); and the limiting block (337) is clamped to the supporting reinforcement mechanism (34).

6. The installation structure of an air intake and exhaust valve in a confined space according to claim 5, characterized in that: A linkage guide plate (338) is rotatably connected to the middle portion of the outer side of the base frame (32), and a linkage guide arm (339) is fixedly connected to one side of the movable block (333) close to the linkage guide plate (338). The linkage guide plate (338) is vertically arranged, and both sides of the linkage guide plate (338) are fitted and connected to the inner end of the linkage guide arm (339).

7. The installation structure of an air intake and exhaust valve in a confined space according to claim 6, characterized in that: An operating armrest (3310) is fixedly connected to the outer side of the linkage guide plate (338); the operating armrest (3310) is arranged in a T-shape, and the linkage guide plate (338) is arranged in an elliptical shape.

8. The installation structure of an air intake and exhaust valve in a confined space according to claim 5, characterized in that: The support and reinforcement mechanism (34) comprises two semi-arc rings (341), the rear sides of the two semi-arc rings (341) are hinged to each other via a hinge (8), a limiting groove (342) is provided in the middle of the outer side of the semi-arc ring (341), the end of the limiting block (337) is inserted into the inner side of the limiting groove (342), the bottom of the semi-arc ring (341) is fixedly connected to an arc-shaped rail (343), and the inner side of the arc-shaped rail (343) is slidably connected to three groups of support and reinforcement components (346).

9. The installation structure of an air intake and exhaust valve in a confined space according to claim 8, characterized in that: The inner side of the semi-arc ring (341) is fixedly connected to telescopic springs (344) arranged in an arc shape at equal intervals. The inner end of the telescopic spring (344) is fixedly connected to an anti-slip arc plate (345). The inner side of the anti-slip arc plate (345) is fitted and connected to the outer surface of the exhaust pipe (2).

10. The installation structure of an air intake and exhaust valve in a confined space according to claim 9, characterized in that: The support reinforcement assembly (346) includes a sliding block (3461), the sliding block (3461) is slidably connected to the inside of the arc-shaped rail (343), the bottom of the sliding block (3461) is fixedly connected to a hinge seat (3462), the bottom of the sliding block (3461) is hinged to a sleeve (3463) through the hinge seat (3462), the interior of the sleeve (3463) is slidably connected to a support rod (3464), the bottom of the support rod (3464) is fixedly installed with an anti-slip mounting plate (3465), the anti-slip mounting plate (3465) is provided with countersunk holes arranged in a ring at equal intervals, the lower end of one side of the sleeve (3463) is threadedly connected to a mounting screw (3466), the end of the mounting screw (3466) passes through the sleeve (3463), and the bottom of the sleeve (3463) is fixedly installed with a support rod (3464). ), the outer surface of the supporting rod (3464) is provided with clamping holes (3467) at equal intervals, the end of the mounting screw (3466) is inserted into the inside of the clamping hole (3467), the upper end of the outer side of the sliding block (3461) is fixedly connected with a fixing member (3467), the fixing member (3467) is slidably connected to the outer side of the arc-shaped rail (343), the middle part of the outer side of the fixing member (3467) is threadedly connected to the limiting screw (3468), the outer side of the arc-shaped rail (343) is provided with limiting holes (3469) arranged in an arc shape at equal intervals, the end of the limiting screw (3468) passes through the fixing member (3467) and is inserted into the inside of the limiting hole (3469), and the limiting screw (3468) and the mounting screw (3466) are both configured as hand-tightening screws.

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