Modularized low-noise air valve

Abstract

The utility model relates to the technical field of air valves, in particular to a modularized low-noise air valve which comprises a valve body, an air inlet pipe communicated with an inner cavity of the valve body is fixed to the position, close to the left end, of the outer wall of the valve body, an air outlet pipe communicated with the inner cavity of the valve body is fixed to the position, close to the right end, of the outer wall of the valve body, and a mounting frame is slidably connected into the air inlet pipe. A plurality of positioning blocks are fixed to the position, close to the right end, of the circumferential inner wall of the mounting frame. According to the air valve, the valve body, the air inlet pipe and the air outlet pipe are arranged, so that the whole air valve has the functions of ventilation and air flow adjustment, and the mounting frame, the positioning blocks, the sound absorption cotton and the sound absorption plate are modularly arranged, so that the whole air valve has the sound attenuation function; and meanwhile, two limiting mechanisms are arranged, so that the mounting frame can be limited, the sound-absorbing cotton and the sound-absorbing plate can be limited, and the sound-absorbing cotton and the sound-absorbing plate can be conveniently disassembled, maintained or replaced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of air valve, concretely to a modularization low noise air valve. BACKGROUND

[0002] Air valve is one of valve, there are many types of air valve on the market at present, to reach the inflation device inflation and exhaust effect.

[0003] The patent with the publication number CN220185996U discloses a high-precision low-noise air valve structure, comprising a valve seat, a valve head and an air pressure sensor, the valve seat and the valve head are connected through a threaded movable connection, the inner wall of the valve seat is provided with a sliding groove, the inside of the valve seat is movably installed with an inflation core, the outer side of the bottom of the inflation core is provided with a plurality of air holes, and the bottom end of the inflation core is fixedly installed with a conical head.

[0004] Although the device is provided with the inflation core, the first push ring and the reset spring, the reset spring is arranged in the sliding groove of the valve seat, so that the reset spring is not directly impacted by the gas passing through the device in the normal use process, thereby preventing some chemical gases from corroding the reset spring during use, but the sound insulation material will inevitably age after long-term use, and the device does not set a structure for limiting the sound insulation material, so that the sound insulation material is not convenient to disassemble, and the aged sound insulation material is not convenient to replace. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a modularization low noise air valve, to solve the problem that the sound insulation material will inevitably age after long-term use as mentioned in the background art, and the device does not set a structure for limiting the sound insulation material, so that the sound insulation material is not convenient to disassemble, and the aged sound insulation material is not convenient to replace.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A modularization low noise air valve, comprising a valve body, the outer wall of the valve body is fixed with an air inlet pipe which is connected with the inner cavity thereof near the left end, the outer wall of the valve body is fixed with an air outlet pipe which is connected with the inner cavity thereof near the right end, the inside of the air inlet pipe is slidably connected with a mounting frame, the circumferential inner wall of the mounting frame is fixed with a plurality of positioning blocks near the right end, the inside of the mounting frame is provided with sound-absorbing cotton which is tightly attached to the inner wall thereof and located on the left side of the plurality of positioning blocks, and the inside of the mounting frame is provided with a sound-absorbing plate which is tightly attached to the inner wall thereof and located on the left side of the sound-absorbing cotton, further comprising:

[0008] Two limiting mechanisms are symmetrically arranged on the circumferential outer wall of the air inlet pipe and used for limiting the mounting frame. The limiting mechanism comprises a fixed plate fixed on the circumferential outer wall of the air inlet pipe and shaped as a U-shaped plate, a gasket fixed on the surface of the horizontal plate segment of the fixed plate close to the air inlet pipe, a spring with one end fixed on the surface of the gasket close to the air inlet pipe, a moving plate fixed on the other end of the spring, a limiting rod fixed on the surface of the moving plate away from the spring and slidably inserted into the mounting frame, a moving block fixed on the circumferential outer wall of the moving plate and slidably connected with the two vertical plate segments of the fixed plate, a fixed rod fixed on the circumferential outer wall of the moving plate close to the top end, and a positioning rod fixed on the top surface of the fixed rod and used for limiting the moving plate.

[0009] As a preferred implementation form, the circumferential outer wall of the air inlet pipe is provided with two through holes symmetric to each other and communicating with the inner cavity of the air inlet pipe, the circumferential outer wall of the mounting frame is provided with two limiting holes corresponding in position and matching in size with the through holes on the same side of the outer wall of the air inlet pipe, and the limiting rod penetrates through the through holes on the same side of the outer wall of the air inlet pipe and is slidably inserted into the limiting holes on the same side of the outer wall of the mounting frame.

[0010] As a preferred implementation form, the opposite surfaces of the two vertical plate segments of the fixed plate are provided with guide grooves, and the outer wall of the moving block is fixed with guide blocks slidably connected with the guide grooves on the outer wall of the vertical plate segments of the same side of the fixed plate.

[0011] As a preferred implementation form, the circumferential outer wall of the air inlet pipe and the circumferential outer wall of the air outlet pipe are both provided with flanges at the end away from the valve body, and the valve body is provided with sealing rings at the positions contacting the air inlet pipe and the air outlet pipe.

[0012] As a preferred implementation form, the circumferential outer wall of the mounting frame is tightly attached to the circumferential inner wall of the air inlet pipe, the left side surfaces of the plurality of positioning blocks are tightly attached to the right side surfaces of the sound-absorbing cotton, and the left side surface of the sound-absorbing cotton is tightly attached to the right side surface of the sound-absorbing plate.

[0013] As a preferred implementation form, the circumferential inner wall of the air inlet pipe is provided with two sliding grooves, and the circumferential outer wall of the mounting frame is fixed with two sliding blocks slidably connected with the sliding grooves on the same side of the circumferential inner wall of the air inlet pipe.

[0014] As a preferred implementation form, the left side surface of the mounting frame is fixed with two push-pull rods symmetric to each other and located inside the air inlet pipe, and the distance between the plane where the left end surface of the push-pull rod is located and the plane where the left end surface of the air inlet pipe is located is 2-5 cm.

[0015] As a preferred implementation form, the top surface of one vertical plate segment of the fixed plate is provided with two insertion holes arranged in front and back, the top surface of the positioning rod is provided with a through groove corresponding to the positions of the two insertion holes on the top surface of the vertical plate segment of the same side fixed plate and matching in size, and the limiting mechanism further comprises an insertion rod located above the fixed plate.

[0016] As a preferred implementation form, the longitudinal section shape of the slide groove on the circumferential inner wall of the air inlet pipe is in the shape of a Chinese character "N", and the shape of the sliding block is in the shape of a Chinese character "N" matching the shape of the slide groove on the circumferential inner wall of the air inlet pipe.

[0017] Compared with the prior art, the utility model has the beneficial effects that:

[0018] 1、The utility model discloses a valve body, air inlet pipe and air outlet pipe can make the whole air valve have the function of ventilation and adjusting the air volume, through the modularization setting of the mounting frame, a plurality of positioning blocks, sound absorbing cotton and sound absorbing board can make the whole air valve have the sound attenuation function, can reduce the noise generated in the working process of the whole air valve, and two limiting mechanisms are arranged, thereby limiting the mounting frame, and the sound absorbing cotton and the sound absorbing board can be limited, thereby facilitating the disassembly, maintenance or replacement of the sound absorbing cotton and the sound absorbing board.

[0019] 2、The opposite surfaces of the two vertical plate segments of the fixed plate are provided with guide grooves, and the outer wall of the moving block is fixed with a guide block slidably connected with the guide groove on the outer wall of the vertical plate segment of the same side fixed plate, so that the movement of the moving block can be guided, and the movement of the limiting rod can be indirectly guided. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is an enlarged view of A in the utility model;

[0022] Figure 3 It is a schematic diagram of the local structure in the utility model;

[0023] Figure 4 It is a schematic diagram of the internal structure of the air inlet pipe in the utility model;

[0024] Figure 5 It is a schematic diagram of the overall structure of the air inlet pipe in the utility model;

[0025] Figure 6 It is a partial exploded view in the utility model;

[0026] Figure 7 It is the overall structure schematic view of the limiting mechanism in the utility model;

[0027] Figure 8 It is the overall structure schematic view of the fixed plate in the utility model;

[0028] Figure 9 It is the partial explosion view of the limiting mechanism in the utility model;

[0029] The meaning of each reference numeral in the drawing is as follows:

[0030] 1, valve body; 2, air inlet pipe; 3, air outlet pipe; 4, flange; 5, mounting frame; 6, positioning block; 7, sound absorbing cotton; 8, sound absorbing plate; 9, limiting mechanism; 91, fixed plate; 92, gasket; 93, spring; 94, moving plate; 95, moving block; 96, guide block; 97, limiting rod; 98, fixed rod; 99, positioning rod; 910, plug rod; 10, sliding block; 11, push-pull rod. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0032] Please refer to Figures 1-9 The utility model provides a kind of technical scheme: a modular low-noise air valve, including valve body 1, air inlet pipe 2 is fixed with being communicated with its inner cavity in the outer wall of valve body 1 near left end, air outlet pipe 3 is fixed with being communicated with its inner cavity in the outer wall of valve body 1 near right end, installation frame 5 is slidably connected in air inlet pipe 2, the circumferential inner wall of installation frame 5 is fixed with several positioning blocks 6 near right end, sound absorbing cotton 7 is located in the left side of several positioning blocks 6 and is tightly attached with the inner wall of installation frame 5 in installation frame 5, sound absorbing plate 8 is located in the left side of sound absorbing cotton 7 and is tightly attached with the inner wall of installation frame 5 in installation frame 5, further include:

[0033] Two limiting mechanisms 9 are symmetrically arranged on the circumferential outer wall of the air inlet pipe 2 and used for limiting the mounting frame 5. The limiting mechanism 9 comprises a fixed plate 91 fixed on the circumferential outer wall of the air inlet pipe 2 and shaped as a U-shaped plate, a gasket 92 fixed on the horizontal plate segment of the fixed plate 91 and close to the side surface of the air inlet pipe 2, a spring 93 with one end fixed on the gasket 92 and close to the side surface of the air inlet pipe 2, a moving plate 94 fixed on the other end of the spring 93, a limiting rod 97 fixed on the side surface of the moving plate 94 away from the spring 93 and slidably connected with the mounting frame 5, a moving block 95 fixed on the circumferential outer wall of the moving plate 94 and slidably connected with the two vertical plate segments of the fixed plate 91, respectively, a fixed rod 98 fixed on the circumferential outer wall of the moving plate 94 close to the top end, and a positioning rod 99 fixed on the top surface of the fixed rod 98 and used for limiting the moving plate 94. By arranging the valve body 1, the air inlet pipe 2 and the air outlet pipe 3, the entire air valve can have the functions of ventilation and air volume adjustment. By modularly arranging the mounting frame 5, the plurality of positioning blocks 6, the sound-absorbing cotton 7 and the sound-absorbing plate 8, the entire air valve can have the function of sound absorption, thereby reducing the noise generated by the entire air valve during operation. Meanwhile, the two limiting mechanisms 9 are arranged, thereby limiting the mounting frame 5, limiting the sound-absorbing cotton 7 and the sound-absorbing plate 8, and facilitating the disassembly, maintenance or replacement of the sound-absorbing cotton 7 and the sound-absorbing plate 8.

[0034] In the embodiment, the circumferential outer wall of the air inlet pipe 2 is provided with two through holes which are mutually symmetrical and connected with the inner cavity of the air inlet pipe 2. The circumferential outer wall of the mounting frame 5 is provided with two limiting holes which are corresponding to the positions of the through holes on the same side of the outer wall of the air inlet pipe 2 and have the same size. The limiting rod 97 penetrates through the through holes on the same side of the outer wall of the air inlet pipe 2 and is slidably connected with the limiting holes on the same side of the outer wall of the mounting frame 5, thereby smoothly limiting the mounting frame 5 and indirectly limiting the sound-absorbing cotton 7 and the sound-absorbing plate 8.

[0035] In addition, the opposite surfaces of the two vertical plate segments of the fixed plate 91 are provided with guide grooves. The outer wall of the moving block 95 is fixed with a guide block 96 which is slidably connected with the guide grooves on the outer wall of the vertical plate segment of the fixed plate 91 on the same side, thereby guiding the movement of the moving block 95 and indirectly guiding the movement of the limiting rod 97.

[0036] Further, the flanges 4 are arranged on the circumferential outer walls of the air inlet pipe 2 and the air outlet pipe 3 away from the valve body 1. The parts of the valve body 1, the air inlet pipe 2 and the air outlet pipe 3 in contact with each other are provided with sealing rings, thereby improving the sealing performance of the entire air valve and preventing the air leakage.

[0037] Further, the circumferential outer wall of the mounting frame 5 is tightly combined with the circumferential inner wall of the air inlet pipe 2. The left side surfaces of the plurality of positioning blocks 6 are tightly combined with the right side surfaces of the sound-absorbing cotton 7. The left side surface of the sound-absorbing cotton 7 is tightly combined with the right side surface of the sound-absorbing plate 8, thereby improving the noise reduction effect of the entire air valve.

[0038] Specifically, the inner circumferential wall of the air intake pipe 2 is provided with two sliding grooves, and the outer circumferential wall of the mounting frame 5 is fixed with two sliders 10 that are slidably connected to the sliding grooves on the same side of the inner circumferential wall of the air intake pipe 2. This can guide the disassembly and assembly of the mounting frame 5, and thus guide the disassembly and assembly of the sound-absorbing cotton 7 and the sound-absorbing panel 8.

[0039] It is worth noting that two symmetrical push-pull rods 11 are fixed on the left side surface of the mounting frame 5 and located inside the air intake pipe 2. The distance between the plane where the left end face of the push-pull rod 11 is located and the plane where the left end face of the air intake pipe 2 is located is 2-5cm, preferably 3cm in this paper, so as to facilitate the push-pull of the mounting frame 5.

[0040] It is worth noting that the top surface of one of the vertical plate sections of the fixing plate 91 is provided with two insertion holes arranged in a front-to-back manner. The top surface of the positioning rod 99 is provided with a through groove that corresponds to the position and size of the two insertion holes on the top surface of the vertical plate section of the fixing plate 91 on the same side. The limiting mechanism 9 also includes an insertion rod 910 located above the fixing plate 91. When the limiting rod 97 is slidably inserted into the limiting hole on the same side of the outer wall of the mounting frame 5, the insertion rod 910 passes through the through groove on the top surface of the positioning rod 99 on the same side and is slidably inserted into the insertion hole on the outer wall of the fixing plate 91 on the same side near the air intake pipe 2, thereby limiting the positioning rod 99, and thus limiting the limiting rod 97.

[0041] It is worth emphasizing that the longitudinal cross-sectional shape of the groove on the inner circumference of the intake pipe 2 is convex, and the shape of the slider 10 is convex, which matches the shape of the groove on the inner circumference of the intake pipe 2. This makes the connection between the slider 10 and the guide groove on the same side of the inner wall of the intake pipe 2 more compact, thereby indirectly making the mounting frame 5 more stable during movement.

[0042] In this embodiment, the valve body 1 is existing technology, and its structure and working principle are as well known to those skilled in the art, and will not be described in detail here.

[0043] In the specific use of this embodiment, when it is necessary to adjust the air volume, firstly, the external air supply pipe and the ventilation pipe are tightly connected to the air inlet pipe 2 and the air outlet pipe 3 respectively. Then, the external flanges on the outer walls of the external air supply pipe and the ventilation pipe are installed together with the flanges 4 on the same side by several screws. Then, during the air supply process, the flow rate of the gas can be controlled by the valve stem in the valve body 1. The sound-absorbing cotton 7 and the sound-absorbing plate 8 are designed to reduce noise.

[0044] When the sound-absorbing cotton 7 and the sound-absorbing plate 8 need to be disassembled, according to the above, the external air pipe and the air inlet pipe 2 can be separated, then one of the insertion rods 910 is pulled upwards to separate the insertion rod 910 from the same side positioning rod 99, then the positioning rod 99 is pulled to move the positioning rod 99 away from the air inlet pipe 2, the movement of the positioning rod 99 drives the same side moving plate 94 to move away from the air inlet pipe 2, the moving plate 94 moves under the guidance of the two guide grooves on the outer wall of the vertical plate segment of the same side fixed plate 91 and the two moving blocks 95 and the guide blocks 96, the movement of the moving plate 94 causes the same side spring 93 fixed thereto to be compressed, and the movement of the moving plate 94 also drives the limiting rod 97 fixed thereto to move, when the through slot on the top surface of the positioning rod 99 corresponds to the insertion hole on the top surface of the vertical plate segment of the same side fixed plate 91 away from the air inlet pipe 2, the insertion rod 910 is then inserted through the through slot on the top surface of the positioning rod 99 and is slidably inserted into the insertion hole on the top surface of the vertical plate segment of the same side fixed plate 91 away from the air inlet pipe 2, at this time, the limiting rod 97 is separated from the same side limiting hole on the outer wall of the mounting frame 5, and the other limiting mechanism 9 can also be operated in the same way, then the two push-pull rods 11 are pulled to the left, the movement of the push-pull rod 11 drives the mounting frame 5 fixed thereto to move to the left, the mounting frame 5 moves under the guidance of the two sliding grooves on the inner wall of the air inlet pipe 2 and the two sliding blocks 10, when the two sliding blocks 10 are completely separated from the two sliding grooves on the inner wall of the air inlet pipe 2, the disassembly of the mounting frame 5 is completed, then the sound-absorbing cotton 7 and the sound-absorbing plate 8 can be disassembled; after cleaning or replacement, the mounting frame 5 and the sound-absorbing cotton 7 and the sound-absorbing plate 8 that are maintained or replaced can be mounted.

[0045] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the present application and do not limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A modular low noise air valve comprising a valve body (1), characterized in that, The outer wall of the valve body (1) is fixed with an air inlet pipe (2) communicating with the inner cavity thereof near the left end, the outer wall of the valve body (1) is fixed with an air outlet pipe (3) communicating with the inner cavity thereof near the right end, the inside of the air inlet pipe (2) is slidably connected with a mounting frame (5), the circumferential inner wall of the mounting frame (5) is fixed with a plurality of positioning blocks (6) near the right end, the inside of the mounting frame (5) is provided with sound-absorbing cotton (7) closely attached to the inner wall thereof and located to the left of the positioning blocks (6), the inside of the mounting frame (5) is provided with sound-absorbing plates (8) closely attached to the inner wall thereof and located to the left of the sound-absorbing cotton (7), and further comprising: Two limiting mechanisms (9) are symmetrically arranged on the circumferential outer wall of the air inlet pipe (2) and used for limiting the mounting frame (5), the limiting mechanism (9) comprises a fixed plate (91) fixed on the circumferential outer wall of the air inlet pipe (2) and shaped as a U-shaped, a gasket (92) fixed on the surface of the horizontal plate segment of the fixed plate (91) near the air inlet pipe (2), a spring (93) with one end fixed on the surface of the gasket (92) near the air inlet pipe (2), a moving plate (94) fixed on the other end of the spring (93), a limiting rod (97) fixed on the surface of the moving plate (94) away from the spring (93) and slidably inserted with the mounting frame (5), a moving block (95) fixed on the circumferential outer wall of the moving plate (94) and slidably connected with the two vertical plate segments of the fixed plate (91), respectively, a fixed rod (98) fixed on the circumferential outer wall of the moving plate (94) near the top end, and a positioning rod (99) fixed on the top surface of the fixed rod (98) and used for limiting the moving plate (94).

2. The modular low noise air valve of claim 1, wherein: The circumferential outer wall of the air inlet pipe (2) is provided with two through holes mutually symmetrical and communicating with the inner cavity thereof, the circumferential outer wall of the mounting frame (5) is provided with two limiting holes corresponding in position and matching in size with the same side through holes on the outer wall of the air inlet pipe (2), and the limiting rod (97) penetrates through the same side through holes on the outer wall of the air inlet pipe (2) and is slidably inserted with the same side limiting holes on the outer wall of the mounting frame (5).

3. The modular low noise air valve of claim 1, wherein: The opposite faces of the two vertical plate segments of the fixed plate (91) are provided with guide grooves, and the outer wall of the moving block (95) is fixed with a guide block (96) slidably connected with the guide grooves on the outer wall of the same side vertical plate segment of the fixed plate (91).

4. The modular low noise air valve of claim 1, wherein: The circumferential outer wall of the air inlet pipe (2) and the circumferential outer wall of the air outlet pipe (3) are both provided with flanges (4) at the ends away from the valve body (1), and the parts of the valve body (1) contacting with the air inlet pipe (2) and the air outlet pipe (3) are both provided with sealing rings.

5. The modular low noise air valve of claim 1, wherein: The circumferential outer wall of the mounting frame (5) is closely attached to the circumferential inner wall of the air inlet pipe (2), the left side surfaces of the positioning blocks (6) are all closely attached to the right side surfaces of the sound-absorbing cotton (7), and the left side surface of the sound-absorbing cotton (7) is closely attached to the right side surface of the sound-absorbing plate (8).

6. The modular low noise air valve of claim 1, wherein: The circumferential inner wall of the air inlet pipe (2) is provided with two sliding grooves, and the circumferential outer wall of the mounting frame (5) is fixed with two sliding blocks (10) slidably connected with the same side sliding grooves on the circumferential inner wall of the air inlet pipe (2).

7. The modular low noise air valve of claim 1, wherein: Two push-pull rods (11) are symmetrically fixed on the left surface of the mounting frame (5) and located inside the air inlet pipe (2), and the distance between the plane where the left end surface of the push-pull rod (11) is located and the plane where the left end surface of the air inlet pipe (2) is located is 2-5 cm.

8. The modular low noise air valve of claim 2, wherein: Two insertion holes are arranged on the top surface of one vertical plate segment of the fixed plate (91) in front and back arrangement, a through groove is arranged on the top surface of the positioning rod (99) and corresponds to the positions of the two insertion holes on the top surface of the vertical plate segment of the fixed plate (91) on the same side and is suitable in size, and the limiting mechanism (9) further comprises an insertion rod (910) located above the fixed plate (91), when the limiting rod (97) is slidingly inserted into the limiting hole on the outer wall of the mounting frame (5) on the same side, the insertion rod (910) penetrates through the through groove on the top surface of the positioning rod (99) on the same side and is slidingly inserted into the insertion hole on the outer wall of the fixed plate (91) on the same side close to the side of the air inlet pipe (2).

9. The modular low noise air valve of claim 6, wherein: The longitudinal section shape of the slide groove on the circumferential inner wall of the air inlet pipe (2) is in the shape of a convex character, and the shape of the sliding block (10) is in the shape of a convex character suitable for the shape of the slide groove on the circumferential inner wall of the air inlet pipe (2).

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