Module assembly type formaldehyde-free noise reduction air pipe valve

Abstract

The invention relates to the technical field of air pipe valves, in particular to a module assembly type formaldehyde-free noise reduction air pipe valve. Comprising a silencing lining layer, mounting frames arranged at the front end and the rear end of the silencing lining layer, mounting holes formed in the four corners of the mounting frames, a rectangular valve pipe arranged on the outer side of the silencing lining layer and located between the two mounting frames, and a valve shaft vertically and rotationally mounted in the middle of the silencing lining layer. According to the formaldehyde-free noise reduction air pipe valve, the structure of an original formaldehyde-free noise reduction air pipe valve is scientifically and reasonably improved, the formaldehyde-free noise reduction air pipe valve is mainly composed of the noise reduction lining layer, the installation frame, the outer frame body, the inner spiral sleeve and the valve assembly, and tool-free modular assembly operation between components of the formaldehyde-free noise reduction air pipe valve can be achieved; and the assembling operation workload and difficulty of the formaldehyde-free silencing air pipe valve are effectively reduced, so that the assembling and processing efficiency and convenience of the formaldehyde-free silencing air pipe valve are improved.

Description

Technical Field

[0001] This invention relates to the field of duct valve technology, and in particular to a modular, formaldehyde-free, noise-reducing duct valve. Background Technology

[0002] Duct valves are key equipment installed in building ventilation and air conditioning systems to control the flow rate, pressure, and direction of media such as air, water, and steam within ducts. There are many types of duct valves, mainly categorized as manual valves, electric valves, and automatic valves.

[0003] like Figure 4 and Figure 5 The diagrams shown are a disassembled view of the previous generation of formaldehyde-free silencer duct valves and a schematic diagram of the assembled components. The structure of this formaldehyde-free silencer duct valve is similar to that of silencer ducts currently on the market. Multiple components are mainly fixed together by fasteners such as rivets, screws, or bolts. Therefore, the assembly and processing of formaldehyde-free silencer duct valves requires the use of tools or equipment by operators. In addition, due to the large number of fasteners required for the assembly of components, the workload and difficulty of the entire assembly operation of formaldehyde-free silencer duct valves are relatively large, directly affecting the efficiency and convenience of the assembly and processing of formaldehyde-free silencer duct valves.

[0004] In view of this, it is particularly important to design and manufacture a formaldehyde-free, noise-reducing duct valve that enables tool-free quick assembly and fixing between components, reduces manufacturing costs, and increases manufacturing capacity. This is especially important in the design, manufacturing, and daily inspection and maintenance of formaldehyde-free, noise-reducing duct valves. Summary of the Invention

[0005] The purpose of this invention is to solve the problem that the assembly and processing of traditional formaldehyde-free silencer duct valves is time-consuming and laborious, resulting in low efficiency and poor convenience in the assembly and processing of formaldehyde-free silencer duct valves. Therefore, a modular assembly type formaldehyde-free silencer duct valve is proposed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A modular, formaldehyde-free, noise-reducing duct valve includes a noise-reducing liner, mounting brackets at the front and rear ends of the noise-reducing liner, mounting holes at the four corners of the mounting brackets, a rectangular valve tube located outside the noise-reducing liner and between the two mounting brackets, a valve shaft vertically rotatably mounted in the middle of the noise-reducing liner, a valve plate mounted in the middle of the valve shaft and inside the noise-reducing liner, and a valve seat mounted on the upper end of the valve shaft. The rectangular valve tube is formed by assembling and connecting two outer frames with a C-shaped longitudinal section. Environmentally friendly plastic fasteners covering the ends of the noise-reducing liner are installed at both the front and rear ends of the noise-reducing liner. A longitudinal sliding frame that fits against the outer wall of the environmentally friendly plastic fastener is integrally fixed to the inner side of the mounting bracket. A modular assembly mechanism for tool-free quick assembly and fixing of the noise-reducing duct valve assembly is provided between the environmentally friendly plastic fastener, the two longitudinal sliding frames, the two outer frames, and the valve shaft.

[0008] As a further description of the above technical solution:

[0009] The module assembly mechanism includes longitudinal inserts symmetrically fixed to the upper and lower ends of the environmentally friendly plastic buckle and extending outward through the longitudinal slide frame; longitudinal slots opened on the upper and lower ends of the longitudinal slide frame and corresponding to the longitudinal inserts; external spiral seats integrally fixed on the opposite sides of the upper and lower ends of the two outer frames; an inner spiral sleeve screwed between the two external spiral seats; and a transverse locking part set between the upper and lower ends of the outer frame and the longitudinal slide frame.

[0010] As a further description of the above technical solution:

[0011] The horizontal locking part includes horizontal locking blocks that are symmetrically fixed on the front and rear sides of the upper end of the outer frame and extend laterally through the longitudinal sliding frame, and horizontal locking grooves that are opened on the longitudinal sliding frame and correspond to the horizontal locking blocks.

[0012] As a further description of the above technical solution:

[0013] A safety device is provided between the inner spiral sleeve and the two outer frames to prevent the inner spiral sleeve from rotating under force after it is screwed into the outer spiral seat.

[0014] As a further description of the above technical solution:

[0015] The safety unit includes a transverse slide rail symmetrically fixed on the left and right ends of the inner spiral sleeve, an L-shaped spring lock block slidably installed on the inner side of the transverse slide rail, a spiral compression spring installed between the transverse slide rail and the spring lock block, and a spring lock buckle fixed on the upper and lower ends of the outer frame and engaging with the spring lock block.

[0016] As a further description of the above technical solution:

[0017] The lower end of the valve shaft is fixedly connected to an anti-deviation block between the inner spiral sleeve and the two outer spiral seats.

[0018] As a further description of the above technical solution:

[0019] A locking part for locking the valve plate opening and closing angle is provided between the valve seat and the inner spiral sleeve.

[0020] As a further description of the above technical solution:

[0021] The locking part includes a torsion spring handle rotatably mounted on the lower end of the handle via a torsion spring shaft, a fixing ring fixed to the end of the inner spiral sleeve away from the sound-absorbing inner lining and in contact with the lower end of the torsion spring handle, a locking pin fixed to the lower end of the torsion spring handle and transversely passing through the fixing ring, and multiple lock holes equally spaced on the fixing ring and corresponding to the locking pin.

[0022] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0023] In this invention, the original formaldehyde-free silencer duct valve structure has been scientifically and rationally improved. This formaldehyde-free silencer duct valve mainly consists of five parts: a silencer lining, a mounting frame, an outer frame, an inner spiral sleeve, and valve components. Environmentally friendly plastic fasteners and longitudinal inserts are installed on the silencer lining; longitudinal sliding frames, longitudinal slots, and transverse locking blocks are installed on the mounting frame; and outer spiral seats and transverse locking blocks are installed on the outer frame. During actual assembly, the mounting frame can be pre-slidably installed longitudinally onto the environmentally friendly plastic fasteners. First, the two outer frames are fastened together between the two longitudinal sliding frames. Then, the inner spiral sleeve is screwed between the two outer spiral seats. Finally, the other valve components are installed onto the main body, completing the modular assembly of the formaldehyde-free silencer duct. This structure enables tool-free modular assembly of the formaldehyde-free silencer duct valve components, effectively reducing the workload and difficulty of the assembly process, thereby improving the efficiency and convenience of the formaldehyde-free silencer duct valve assembly process. Attached Figure Description

[0024] Figure 1 This is a three-dimensional exploded view of a modular assembled formaldehyde-free silencer duct valve proposed in this invention.

[0025] Figure 2 This is a schematic diagram of the assembled structure of the silencer duct valve assembly in this invention;

[0026] Figure 3 This is a top-down view of the silencer duct valve in this invention;

[0027] Figure 4 A three-dimensional explosion diagram of the previous generation of formaldehyde-free silencer duct valves in existing technology;

[0028] Figure 5This is a schematic diagram of the structure of the previous generation of formaldehyde-free, noise-reducing air duct valve assembly in the existing technology.

[0029] Legend:

[0030] 1. Noise-absorbing inner lining; 101. Environmentally friendly plastic fastener; 102. Longitudinal insert block; 2. Mounting bracket; 201. Mounting hole; 202. Longitudinal slide frame; 203. Longitudinal slot; 204. Horizontal locking slot; 3. Outer frame; 301. Outer spiral seat; 302. Horizontal locking block; 303. Spring lock buckle; 4. Inner spiral sleeve; 401. Horizontal slide rail; 402. Spring lock block; 403. Spiral compression spring; 404. Fixing ring; 405. Lock hole; 5. Valve shaft; 501. Anti-deviation block; 502. Valve plate; 6. Valve seat; 601. Handle; 602. Torsion spring pressure handle; 603. Locking post. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Please see Figure 1-3 This invention provides a technical solution: a modular assembled formaldehyde-free silencer duct valve, comprising a silencer liner 1, mounting brackets 2 disposed on the front and rear ends of the silencer liner 1, mounting holes 201 formed at the four corners of the mounting brackets 2, a rectangular valve tube disposed on the outside of the silencer liner 1 and located between two mounting brackets 2, a valve shaft 5 vertically rotatably mounted in the middle of the silencer liner 1, a valve plate 502 mounted in the middle of the valve shaft 5 and located inside the silencer liner 1, and a valve seat 6 mounted on the upper end of the valve shaft 5. The rectangular valve tube is formed by connecting two outer frames 3 with C-shaped longitudinal sections. Environmentally friendly plastic buckles 101 are installed on the front and rear ends of the sound-absorbing inner liner 1 to wrap the ends of the sound-absorbing inner liner 1. The inner side of the mounting bracket 2 is integrally fixedly connected with a longitudinal sliding frame 202 that fits against the outer wall of the environmentally friendly plastic buckle 101. A modular assembly mechanism for tool-free quick assembly and fixing between the environmentally friendly plastic buckle 101, the two longitudinal sliding frames 202, the two outer frames 3 and the valve shaft 5 is provided.

[0033] Specifically, such as Figure 1-3As shown, the module assembly mechanism includes a longitudinal insert 102 symmetrically fixed to the upper and lower ends of the environmentally friendly plastic buckle 101 and extending outward through the longitudinal slide frame 202; a longitudinal slot 203 opened on the upper and lower ends of the longitudinal slide frame 202 and corresponding to the longitudinal insert 102; an outer spiral seat 301 integrally fixed on the opposite sides of the upper and lower ends of the two outer frames 3; an inner spiral sleeve 4 screwed between the two outer spiral seats 301; and a transverse locking part set between the upper and lower ends of the outer frame 3 and the longitudinal slide frame 202. At the same time, the setting of the longitudinal insert 102 and the longitudinal slot 203 improves the accuracy of the mounting bracket 2 being positioned and fixed to the outside of the environmentally friendly plastic buckle 101 through the longitudinal slide frame 202. On the other hand, under the limiting effect of the longitudinal insert 102 and the longitudinal slot 203, the transverse displacement and shaking of the two longitudinal slide frames 202 on the outside of the sound-absorbing inner liner 1 can be prevented.

[0034] The transverse locking part includes a transverse locking block 302 symmetrically fixed on the front and rear sides of the upper end of the outer frame 3 and transversely penetrating the longitudinal sliding frame 202, and a transverse locking groove 204 opened on the longitudinal sliding frame 202 and corresponding to the transverse locking block 302. When the transverse locking block 302 on the outer frame 3 slides laterally into the transverse locking groove 204 of the longitudinal sliding frame 202, the two outer frames 3 can be longitudinally limited and locked between the two longitudinal sliding frames 202, thereby preventing the two mounting brackets 2 from longitudinally displacing and shaking outside the sound-absorbing inner lining layer 1.

[0035] Specifically, such as Figure 1-3 As shown, a safety part is provided between the inner spiral sleeve 4 and the two outer frames 3 to prevent the inner spiral sleeve 4 from rotating under force after being screwed into the outer spiral seat 301. The safety part includes a transverse slide rail 401 symmetrically fixed on the left and right ends of the inner spiral sleeve 4, a spring lock block 402 with an L-shaped structure slidably installed on the inner side of the transverse slide rail 401, a spiral compression spring 403 installed between the transverse slide rail 401 and the spring lock block 402, and a spring lock buckle 303 fixed on the upper and lower ends of the outer frame 3 and engaged with the spring lock block 402.

[0036] Under normal conditions, under the action of the helical compression spring 403, the spring lock block 402 elastically abuts against the inner wall of the spring lock buckle 303 on the transverse slide rail 401. Under the locking action of the spring lock block 402 and the spring lock buckle 303, the inner helical sleeve 4 is prevented from rotating under the force on the two outer helical seats 301, thereby improving the stability of the inner helical sleeve 4 installed on the two outer helical seats 301.

[0037] Meanwhile, the spring lock block 402 has an L-shaped structure. Its horizontal end can be locked with the spring lock buckle 303 to realize the anti-deflection protection operation of the inner spiral sleeve 4. At the same time, the vertical end is convenient for the operator to hold and press the spring lock block 402 for adjustment.

[0038] Specifically, such as Figure 1-3As shown, the lower end of the valve shaft 5 is fixedly connected to the inner spiral sleeve 4 and the two outer spiral seats 301 with an anti-deviation block 501. A locking part for locking the opening and closing angle of the valve plate 502 is provided between the valve seat 6 and the inner spiral sleeve 4. The locking part includes a torsion spring handle 602 rotatably mounted on the lower end of the handle 601 via a torsion spring shaft, a fixing ring 404 fixed to the end of the inner spiral sleeve 4 away from the sound-absorbing inner liner 1 and in contact with the lower end of the torsion spring handle 602, a locking pin 603 fixed to the lower end of the torsion spring handle 602 and transversely penetrating the fixing ring 404, and multiple locking holes 405 equally angled on the fixing ring 404 and corresponding to the locking pin 603. Under normal conditions, the lower end of the torsion spring handle 602 elastically abuts against the outer wall of the fixing ring 404, thereby locking the locking pin 603 on the torsion spring handle 602 into the locking hole 405 at a designated position on the fixing ring 404, thus preventing the valve shaft 5 from rotating under force and maintaining the opening and closing angle of the valve plate 502.

[0039] Working principle: When assembling and processing formaldehyde-free silencer duct valves, the first step is to pre-slide the longitudinal sliding frame 202 on the mounting bracket 2 onto the environmentally friendly plastic buckle 101. After the longitudinal insert 102 on the environmentally friendly plastic buckle 101 slides into the end of the longitudinal slot 203 of the longitudinal sliding frame 202, the mounting bracket 2 is pre-assembled on the front and rear ends of the silencer lining layer 1.

[0040] Step 2: Slide the two outer frame bodies 3 from the left and right sides of the sound-absorbing inner lining layer 1 into the space between the two longitudinal sliding frames 202. When the horizontal locking blocks 302 on the two outer frame bodies 3 are inserted into the horizontal locking grooves 204 of the longitudinal sliding frames 202, the two outer frame bodies 3 are initially locked and fixed between the two mounting brackets 2.

[0041] Step 3: Hold and press the spring lock block 402 on the inner spiral sleeve 4 inward, and slide the spring lock block 402 into the horizontal slide rail 401. Then, the inner spiral sleeve 4 can be screwed into the two outer spiral seats 301 at the upper end of the two outer frames 3. When the inner spiral sleeve 4 is screwed into the appropriate position, the spring lock block 402 can be released. At this time, under the action of the spiral compression spring 403, the spring lock block 402 can be elastically locked outward into the spring lock buckle 303 on the outer frame 3. At this time, the inner spiral sleeve 4 is stably fixed between the upper ends of the two outer frames 3.

[0042] Step 4: Pre-position and adjust the valve plate 502 to the silencing liner 1. Insert the valve shaft 5 from bottom to top between the silencing liner 1 and the two outer frames 3. After the anti-deviation block 501 at the lower end of the valve shaft 5 slides into the two outer spiral seats 301 at the lower end of the outer frame 3, you can continue to hold it and press the spring lock block 402 on the inner spiral sleeve 4 inward. Hide the spring lock block 402 into the transverse slide rail 401, and then screw the inner spiral sleeve 4 into the two outer spiral seats 301. Between the two outer spiral seats 301 at the lower end of the outer frame 3, when the inner spiral sleeve 4 is screwed into the appropriate position, the spring lock block 402 can be released. At this time, under the action of the spiral compression spring 403, the spring lock block 402 can be elastically locked outward in the spring lock buckle 303 on the outer frame 3. At this time, the inner spiral sleeve 4 is stably fixed between the lower ends of the two outer frames 3, and the valve shaft 5 is limited to the installation between the sound-absorbing inner liner 1 and the middle of the two outer frames 3.

[0043] Step 5: Hold and press the torsion spring handle 602 on the handle 601 upwards to insert and fix the valve seat 6 to the upper end of the valve shaft 5, and make it fit against the outer wall of the inner spiral sleeve 4. Then you can release the torsion spring handle 602, and the torsion spring handle 602 will rotate downwards. At this time, the locking pin 603 at the lower end of the torsion spring handle 602 can slide into the locking hole 405 on the fixing ring 404. At this time, the valve seat 6 can be locked on the inner spiral sleeve 4, and the opening and closing angle of the valve plate 502 on the valve shaft 5 is also locked. This completes the tool-free modular assembly and fixing operation of the formaldehyde-free silencer duct valve.

[0044] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A modular, formaldehyde-free, sound-absorbing duct valve, comprising a sound-absorbing inner lining (1), mounting brackets (2) disposed on the front and rear ends of the sound-absorbing inner lining (1), mounting holes (201) opened at the four corners of the mounting brackets (2), a rectangular valve tube disposed on the outside of the sound-absorbing inner lining (1) and located between the two mounting brackets (2), a valve shaft (5) vertically rotatably mounted in the middle of the sound-absorbing inner lining (1), a valve plate (502) mounted in the middle of the valve shaft (5) and located inside the sound-absorbing inner lining (1), and a valve seat (6) mounted on the upper end of the valve shaft (5), characterized in that, The rectangular valve tube is formed by connecting two outer frames (3) with C-shaped longitudinal sections. The front and rear ends of the sound-absorbing inner lining (1) are equipped with environmentally friendly plastic buckles (101) that wrap the ends of the sound-absorbing inner lining (1). The inner side of the mounting bracket (2) is integrally fixedly connected with a longitudinal sliding frame (202) that fits against the outer wall of the environmentally friendly plastic buckle (101). A modular assembly mechanism for tool-free quick assembly and fixing of the sound-absorbing air duct valve assembly is provided between the environmentally friendly plastic buckle (101), the two longitudinal sliding frames (202), the two outer frames (3) and the valve shaft (5).

2. The modular assembled formaldehyde-free silencer duct valve according to claim 1, characterized in that, The module assembly mechanism includes a longitudinal insert (102) symmetrically fixed to the upper and lower ends of the environmentally friendly plastic buckle (101) and extending outward through the longitudinal slide frame (202), a longitudinal slot (203) opened on the upper and lower ends of the longitudinal slide frame (202) and corresponding to the longitudinal insert (102), an outer screw seat (301) integrally fixed on the opposite sides of the upper and lower ends of the two outer frames (3), an inner screw sleeve (4) screwed between the two outer screw seats (301) by thread, and a transverse locking part set between the upper and lower ends of the outer frame (3) and the longitudinal slide frame (202).

3. The modular assembled formaldehyde-free silencer duct valve according to claim 2, characterized in that, The horizontal locking part includes a horizontal locking block (302) symmetrically fixed on the front and rear sides of the upper end of the outer frame (3) and horizontally penetrating the longitudinal sliding frame (202) and a horizontal locking groove (204) opened on the longitudinal sliding frame (202) and corresponding to the horizontal locking block (302).

4. The modular assembled formaldehyde-free silencer duct valve according to claim 2, characterized in that, A safety device is provided between the inner spiral sleeve (4) and the two outer frames (3) to prevent the inner spiral sleeve (4) from rotating under force after being screwed into the outer spiral seat (301).

5. A modular, formaldehyde-free, noise-reducing duct valve according to claim 4, characterized in that, The safety unit includes a transverse slide rail (401) symmetrically fixed on the left and right ends of the inner spiral sleeve (4), a spring lock block (402) slidably installed on the inner side of the transverse slide rail (401) and having an L-shaped structure, a spiral compression spring (403) installed between the transverse slide rail (401) and the spring lock block (402), and a spring lock buckle (303) fixed on the upper and lower ends of the outer frame (3) and engaging with the spring lock block (402).

6. The modular assembled formaldehyde-free silencer duct valve according to claim 1, characterized in that, The lower end of the valve shaft (5) is fixedly connected to an anti-deviation block (501) between the inner spiral sleeve (4) and the two outer spiral seats (301).

7. The modular assembled formaldehyde-free silencer duct valve according to claim 1, characterized in that, A locking part is provided between the valve seat (6) and the inner spiral sleeve (4) for locking the opening and closing angle of the valve plate (502).

8. A modular, formaldehyde-free, noise-reducing duct valve according to claim 7, characterized in that, The locking part includes a torsion spring handle (602) rotatably mounted on the lower end of the handle (601) via a torsion spring shaft, a fixing ring (404) fixed to the end of the inner spiral sleeve (4) away from the sound-absorbing inner liner (1) and in contact with the lower end of the torsion spring handle (602), a locking pin (603) fixed to the lower end of the torsion spring handle (602) and transversely passing through the fixing ring (404), and a plurality of lock holes (405) opened at equal angles on the fixing ring (404) and corresponding to the locking pin (603).

Images