Anti-condensation heat preservation air valve and manufacturing process thereof

Abstract

The invention discloses an anti-condensation heat preservation air valve which comprises a valve body and an opening and closing execution device. The valve body is provided with a heat preservation layer, the heat preservation layer is made of heat preservation materials, an opening and closing execution device is installed on the valve body, a ventilation channel is formed in the valve body, and the opening and closing execution device is located at the position of the ventilation channel and used for opening and closing the valve body. The anti-condensation heat preservation air valve and the manufacturing process thereof solve the problem that in the prior art, an air valve does not have the heat preservation effect, and condensation is likely to occur after air with heat stops passing through.

Description

Technical Field

[0001] The present invention relates to a ventilation valve, and particularly to an anti-condensation and heat-insulating air valve and its manufacturing process. Background Art

[0002] China has disclosed an air valve that is easy to assemble with an application number of CN202420069018.6. The air valve that is easy to assemble includes an air valve frame, a first rotating rod, a wind deflector, etc. A plurality of first rotating rods are rotatably arranged on the air valve frame, and a wind deflector is installed on the first rotating rod. By rotating the first rotating rod, a gap or a closed gap is formed between the wind deflectors. By rotating the screw rod, the fixed block presses the air valve frame downward so that the air valve frame is fixed on the frame. By connecting the turning handles on each air valve frame with the first connecting rod, all the air valves are controlled to open and close through the first connecting rod.

[0003] Although the air valve that is easy to assemble can achieve the function of opening and closing multiple ventilation channels together, the air valve that is easy to assemble still has the following disadvantages: In some ventilation scenarios, the air passing through has heat. If the air valve cools rapidly after ventilation and has no heat-insulating effect, condensation is likely to occur on the air valve, and the condensation will damage the air valve, resulting in a low service life of the air valve. Summary of the Invention

[0004] The present invention aims to provide an anti-condensation and heat-insulating air valve and its manufacturing process to solve the problem that condensation easily occurs after the hot air stops passing through due to the lack of heat-insulating effect of the air valve in the prior art.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] The present invention discloses an anti-condensation and heat-insulating air valve, including: a valve body and an opening and closing execution device; the valve body is provided with a heat-insulating layer made of heat-insulating material, and an opening and closing execution device is installed on the valve body. The valve body forms a ventilation channel, and the opening and closing execution device is located at the ventilation channel for opening and closing the valve body.

[0007] Preferably, the opening and closing execution device includes: a valve plate, a rotating shaft, and a rotation positioning mechanism. The valve plate is located in the ventilation channel and is used for opening and closing the ventilation channel. The valve plate is installed on the rotating shaft, and the rotating shaft is rotatably installed on the valve body. A rotation positioning mechanism is installed at the connection between the rotating shaft and the valve body for positioning the positions of the rotating shaft and the valve plate.

[0008] Preferably, the rotation positioning mechanism includes: a positioning arm, a shrapnel, and a fixed seat. The fixed seat is fixed on the valve body. A rotatable positioning arm is installed on the fixed seat. A positioning groove is formed at the top end of the positioning arm. The end of the rotating shaft located outside the valve body extends to form a positioning post, and the positioning post can extend into the positioning groove. A shrapnel is installed between the positioning arm and the fixed seat, and the shrapnel is used to keep the inner wall of the positioning groove on the positioning arm around the positioning post.

[0009] Preferably, the fixed seat includes: a fixed cylinder and an extension seat. The fixed cylinder is fixed to the valve body. The end of the fixed cylinder away from the valve body protrudes to form an extension seat. The extension seat is hinged to the positioning arm, and the shrapnel is installed at the extension seat; the rotating shaft includes: a mounting section and a rotating section. The mounting section extends into the valve disc, and the mounting section is fixed to the valve disc. The mounting section is fixed with a rotating section located outside the valve body. The outer diameter of the mounting section is larger than the outer diameter of the rotating section, and a step is formed at the mounting section and the rotating section. The fixed cylinder presses the mounting section against the valve body through the step.

[0010] Preferably, a positioning block is installed on the inner wall of the valve body, and the positioning block is in close contact with the valve disc in the closed state.

[0011] Preferably, the valve body includes: an inner layer, an outer layer, and an end sealing mechanism. The outer layer surrounds the inner layer, heat insulation cotton is installed between the inner layer and the outer layer, and the ends of the inner layer and the outer layer are sealed with the end sealing mechanism.

[0012] Preferably, the end sealing mechanism includes: an inner close-fitting ring, an outer close-fitting ring, and an end block. The inner close-fitting ring is in close contact with the inner layer, the outer close-fitting ring is in close contact with the outer layer, and both the inner close-fitting ring and the outer close-fitting ring are fixed to the end block.

[0013] Preferably, the valve body further includes: a guide seat. The guide seat is installed on the inner wall of the inner layer, and the guide seat guides the rotation of the rotating shaft.

[0014] The present invention also discloses a production process for an anti-condensation and heat-insulating air valve. The production process for the anti-condensation and heat-insulating air valve is realized based on the above-mentioned anti-condensation and heat-insulating air valve;

[0015] The production process for the anti-condensation and heat-insulating air valve includes the following steps:

[0016] S1. Prepare raw materials, and the raw materials include: a valve body, a valve disc, a rotating shaft, and a rotation positioning mechanism;

[0017] S2. Place the valve disc into the valve body and manually keep the position of the valve disc in the valve body;

[0018] S3. Pass the rotating shaft through the valve body and then extend it into the valve disc;

[0019] S4. Install the rotation positioning mechanism on the outer wall of the valve body, and the rotation positioning mechanism is located at the end of the rotating shaft outside the valve body.

[0020] Preferably, step S4 includes the following steps:

[0021] S41. Sheathe the fixed seat in the rotary positioning mechanism outside the rotary shaft;

[0022] S42. Fix the fixed cylinder on the fixed seat to the valve body, and the inner wall of the fixed cylinder cooperates with the inner wall of the valve body to position the rotary shaft.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] In the present application, by providing a heat preservation layer on the valve body, the heat preservation layer is made of a heat preservation material, so that the heat preservation effect is achieved during ventilation, that is: if the hot air that was previously in the inlet state stops entering immediately, due to the heat preservation effect of the heat preservation layer, the heat in the valve body will not be quickly transferred to the outermost wall of the valve body, but the heat will be slowly transferred to the outer wall of the valve body, and the outer wall of the valve body exchanges heat with the surrounding environment slowly. The temperature of the environment will not differ greatly from that of the valve body, so condensation will not form on the outer wall of the valve body, and the damage to the outer wall of the valve body caused by condensation is avoided.

[0025] Other advantages, objectives and features of the present invention will be partially reflected by the following description, and partially will be understood by those skilled in the art through the research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic structural diagram of an anti-condensation heat preservation air valve.

[0027] Figure 2 It is a schematic structural diagram of an anti-condensation heat preservation air valve without a valve disc.

[0028] Figure 3 For Figure 1 It is a schematic structural diagram when there is no end sealing structure in

[0029] Figure 4 For Figure 1 It is an enlarged view of the rotary positioning mechanism in

[0030] Figure 5 It is a cross-sectional view of an anti-condensation heat preservation air valve.

[0031] Figure 6 It is a schematic structural diagram of the valve disc and the positioning block.

[0032] Reference numerals: valve body 1, positioning block 10, inner layer 11, outer layer 12, end sealing mechanism 13, inner close-fitting ring 131, outer close-fitting ring 132, end block 133, guide seat 14, opening and closing actuator 2, valve plate 21, plate body 211, mating plate 212, folding groove 213, rib 214, folding groove 22, rotating shaft 22, mounting section 221, rotating section 222, positioning post 223, rotation positioning mechanism 23, positioning arm 231, elastic piece 232, fixed seat 233, heat preservation layer 3. Detailed implementation manner

[0033] In order to make the technical means, creative features, achieved purposes and functions of the present invention clearer and easier to understand, the present invention will be further described below in conjunction with the accompanying drawings and specific implementation manners:

[0034] As Figure 1 and Figure 3 shown, the present invention discloses an anti-condensation heat preservation air valve, including: a valve body 1 and an opening and closing actuator 2; the valve body 1 is provided with a heat preservation layer 3, the heat preservation layer 3 is made of a heat preservation material, an opening and closing actuator 2 is installed on the valve body 1, the valve body 1 forms a ventilation channel, the opening and closing actuator 2 is located at the ventilation channel, and the opening and closing actuator 2 is used to open and close the valve body 1.

[0035] In this application, the valve body 1 is a ring-shaped frame structure, and the whole valve body 1 presents a rectangular ring structure or a circular ring structure, etc. The shape and structure of the valve body 1 are not limited. Of course, for a rectangular ring structure valve body 1, air passes through the center.

[0036] Preferably, the heat preservation material used for the heat preservation layer 3 is a known material.

[0037] As Figure 1 and Figure 4 shown, in this embodiment, the opening and closing actuator 2 includes: a valve plate 21, a rotating shaft 22 and a rotation positioning mechanism 23. The valve plate 21 is located in the ventilation channel, and the valve plate 21 is used to open and close the ventilation channel. The valve plate 21 is installed on the rotating shaft 22, the rotating shaft 22 is rotatably installed on the valve body 1, and a rotation positioning mechanism 23 is installed at the connection between the rotating shaft 22 and the valve body 1. The rotation positioning mechanism 23 is used to position the positions of the rotating shaft 22 and the valve plate 21.

[0038] Preferably, as Figure 6 shown, the valve plate 21 includes: a plate body 211 and a mating plate 212. A first arc-shaped groove is formed in the middle of the plate body 211, a folding groove 22213 is formed at a position near the edge of the plate body 211, the mating plate 212 is buckled on the plate body 211, a second arc-shaped groove is formed in the middle of the mating plate 212, the mating plate 212 is buckled on the plate body 211, and the inner walls of the first arc-shaped groove and the second arc-shaped groove surround and form a shaft groove for the rotating shaft 22 to pass through.

[0039] In the above, the sheet body 211 plays the entire opening and closing role. The use of the folding groove 22213 is to make the two edges of the valve sheet 21 not in the same plane, so that the two edges of the valve sheet 21 can respectively closely adhere to two staggeredly arranged positioning blocks 10. The two edges of the valve sheet 21 are closing edges. One closing edge can rotate in a gap between the two positioning blocks 10, and the other closing edge can rotate in another gap between the two positioning blocks 10. Whether it can closely adhere to the positioning block 10 after rotation is the key. Therefore, the folding groove 22213 is designed to stamp and fold the entire previous sheet body 211 of the plate, and finally form two closing edges not in the same plane.

[0040] This design can reduce the complexity of manufacturing the valve sheet 21 using a mold. After simply pulling out the steel strip, leveling it, cutting it into individual block-shaped valve sheets 21, and finally stamping and forming, multiple valve sheets 21 can be continuously produced on one production line, improving production efficiency.

[0041] Since the valve sheet 21 needs to be fixedly connected to the rotating shaft 22 relatively, the fitting sheet 212 is designed. An axial groove surrounding the rotating shaft 22 is formed at the second arc-shaped groove of the fitting sheet 212 and the first arc-shaped groove of the sheet body 211. A convex strip 214 protrudes from the inner wall of the second arc-shaped groove of the fitting sheet 212, and the convex strip 214 is inserted into the strip-shaped groove opened on the rotating shaft 22. In this way, when the rotating shaft 22 rotates, it can drive the entire valve sheet 21 to rotate. Also, after the rotating shaft 22 is inserted from one side of the valve body 1 subsequently, the rotating shaft 22 can be inserted into the valve sheet 21 at the same time. Finally, the rotating shaft 22 is positioned by the fixing cylinder. The production steps are simple and reliable, and the production efficiency can be improved.

[0042] Preferably, the sheet body 211 and the fitting sheet 212 are connected by a riveting method. Of course, they can also be connected by other methods.

[0043] In this application, as Figure 4 and Figure 6 shown, the rotation positioning mechanism 23 includes: a positioning arm 231, a spring piece 232, and a fixed seat 233. The fixed seat 233 is fixed on the valve body 1. A rotatable positioning arm 231 is installed on the fixed seat 233. A positioning groove is opened at the top end of the positioning arm 231. The end of the rotating shaft 22 outside the valve body 1 extends to form a positioning column 223, and the positioning column 223 can extend into the positioning groove. A spring piece 232 is installed between the positioning arm 231 and the fixed seat 233, and the spring piece 232 is used to keep the inner wall of the positioning groove on the positioning arm 231 surrounding the positioning column 223.

[0044] The steps for the above-mentioned rotation positioning mechanism 23 to achieve the rotation positioning function are as follows: In the initial state, under the elastic force of the elastic piece 232, the end of the positioning arm 231 away from the elastic piece 232 is pressed on the positioning post 223 at the top of the rotating shaft 22. The shape of the positioning groove on the positioning arm 231 is non-circular, and the inner wall of the positioning groove is in close contact with the positioning post 223 at the top of the rotating shaft 22, thereby restricting the rotation of the entire rotating shaft 22 and the valve plate 21 to position the valve plate 21 in the closed position or the open position. When the rotating shaft 22 needs to be adjusted, press the end of the positioning arm 231 connected to the elastic piece 232 to separate the positioning arm 231 from the positioning post 223, and then the rotating shaft 22 can be rotated to manually adjust the position of the valve plate 21.

[0045] In the present application, as Figure 5 shown, the fixed seat 233 includes: a fixed cylinder and an extension seat. The fixed cylinder is fixed to the valve body 1, and an extension seat protrudes from the end of the fixed cylinder away from the valve body 1. The extension seat is hinged to the positioning arm 231, and the elastic piece 232 is installed at the extension seat; the rotating shaft 22 includes: a mounting section 221 and a rotating section 222. The mounting section 221 extends into the valve plate 21, and the mounting section 221 is fixed to the valve plate 21. A rotating section 222 located outside the valve body 1 is fixed to the mounting section 221. The outer diameter of the mounting section 221 is larger than the outer diameter of the rotating section 222, and a step is formed at the connection of the mounting section 221 and the rotating section 222. The fixed cylinder presses the mounting section 221 in the valve body 1 through the step.

[0046] In the specific structures of the above-mentioned fixed seat 233 and rotating shaft 22, the fixed cylinder of the fixed seat 233 is connected to the valve body 1 by means of screws or the like, and the extension seat guides the rotation of the rotating shaft 22. The fixed seat 233 not only functions to install the elastic piece 232 and the positioning arm 231, but also has the function of positioning the rotating shaft 22, thereby realizing the hinged connection between the rotating shaft 22 and the valve body 1 and the fixed connection between the rotating shaft 22 and the valve plate 21 by means of insertion. Of course, there are other installation methods, but this method is relatively simple, which can reduce the welding between the rotating shaft 22 and the valve plate 21. At the same time, it is also realized that the valve plate 21 is formed by the buckling of a plate-shaped body 211 of a plate and a mating piece 212 of a plate, and the stamping method can also be realized, reducing the cost of the mold required for the production of the valve plate 21.

[0047] Preferably, as Figure 1 and Figure 2 shown, a positioning block 10 is installed on the inner wall of the valve body 1, and the positioning block 10 is in close contact with the valve plate 21 in the closed state. The positioning block 10 can be formed by protruding from the inner wall of the valve body 1, or the positioning block 10 can be a component welded or riveted to the inner wall of the valve body 1.

[0048] In this application, the valve body 1 includes: an inner layer 11, an outer layer 12, and an end sealing mechanism 13. The outer layer 12 surrounds the inner layer 11. Heat insulation cotton is installed between the inner layer 11 and the outer layer 12, and the ends of the inner layer 11 and the outer layer 12 are sealed by the end sealing mechanism 13.

[0049] Preferably, the outer layer 12 and the inner layer 11 are made of fire-resistant materials, such as aluminum and other materials. Of course, it can also be other fire-resistant materials. The heat insulation layer 3 is added between the inner layer 11 and the outer layer 12. The end sealing mechanism 13 positions the inner layer 11 and the outer layer 12, and thus can position the heat insulation layer 3. The end sealing mechanism 13 mainly functions to position the outer layer 12 and the inner layer 11 to prevent the inner layer 11 and the outer layer 12 from shaking randomly.

[0050] In this application, the end sealing mechanism 13 includes: an inner tight ring 131, an outer tight ring 132, and an end block 133. The inner tight ring 131 is in close contact with the inner layer 11, the outer tight ring 132 is in close contact with the outer layer 12, and both the inner tight ring 131 and the outer tight ring 132 are fixed to the end block 133.

[0051] To improve the positioning effect of the end sealing mechanism 13, the inner tight ring 131, the outer tight ring 132, and the end block 133 are integrally formed. The inner tight ring 131 positions the inner layer 11, the outer tight ring 132 positions the outer layer 12, and the end block 133 is used to seal the heat insulation layer 3.

[0052] Preferably, the inner tight ring 131 can be installed on the inner layer 11 by riveting, and the outer tight ring 132 can also be installed on the outer layer 12 by riveting. The inner tight ring 131 and the outer tight ring 132 can position the inner layer 11 and the outer layer 12. If only the end block 133 is used, multiple screws need to be connected. However, the thickness of the inner layer 11 and the outer layer 12 is insufficient, and it is difficult to install the screws. Of course, positioning the inner layer 11 and the outer layer 12 only by the end block 133 and screws is also an installation method. However, this method requires drilling screw holes and rotating the screws, which will increase the operation steps and reduce the production efficiency.

[0053] In this application, the valve body 1 further includes: a guide seat 14. The guide seat 14 is installed on the inner wall of the inner layer 11 to guide the rotation of the rotating shaft 22. The rotation of the rotating shaft 22 is guided to prevent the rotating shaft 22 from deflecting during rotation.

[0054] Preferably, the guide seat 14 is designed to be separated from the valve body 1. Since the inner layer 11 and the outer layer 12 of the valve body 1 are formed by plates, it is difficult to drill relatively deep rotation holes on the relatively thin inner layer 11. Of course, if other materials are used and other production methods are adopted, it is also possible, not limited to this method.

[0055] The present invention also discloses a manufacturing process for an anti-condensation and heat-insulating air valve, and the manufacturing process for the anti-condensation and heat-insulating air valve is implemented based on the above-mentioned anti-condensation and heat-insulating air valve;

[0056] The manufacturing process for the anti-condensation and heat-insulating air valve includes the following steps:

[0057] S1. Prepare raw materials, which include: a valve body 1, a valve disc 21, a rotating shaft 22, and a rotating positioning mechanism 23;

[0058] S2. Place the valve disc 21 into the valve body 1, and manually maintain the position of the valve disc 21 within the valve body 1;

[0059] S3. Pass the rotating shaft 22 through the valve body 1 and extend it into the valve disc 21; (the convex strip 214 on the valve disc 21 simultaneously extends into the strip-shaped groove formed in the rotating shaft 22, so that after the rotating shaft 22 is inserted, it can drive the valve disc 21 to rotate together)

[0060] S4. Install the rotating positioning mechanism 23 on the outer wall of the valve body 1, and the rotating positioning mechanism 23 is located at the end of the rotating shaft 22 outside the valve body 1.

[0061] In this application, step S4 includes the following steps:

[0062] S41. Sleeve the fixed seat 233 in the rotating positioning mechanism 23 on the rotating shaft 22;

[0063] S42. Fix the fixed cylinder on the fixed seat 233 to the valve body 1, and the inner wall of the fixed cylinder cooperates with the inner wall of the valve body 1 to position the rotating shaft 22. This reduces the installation steps.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. Anti-condensation and heat preservation air valve, characterized in that, Comprising: A valve body and an opening / closing actuator; the valve body is provided with a heat-insulating layer made of a heat-insulating material. An opening / closing actuator is installed on the valve body. The valve body forms a ventilation channel. The opening / closing actuator is located at the ventilation channel and is used to open and close the valve body.

2. The anti-condensation and heat-preserving air valve according to claim 1, wherein, The opening / closing actuator includes: a valve disc, a rotating shaft, and a rotation positioning mechanism. The valve disc is located inside the ventilation channel and is used to open and close the ventilation channel. The valve disc is installed on the rotating shaft. The rotating shaft is rotatably installed on the valve body. A rotation positioning mechanism is installed at the connection between the rotating shaft and the valve body, and the rotation positioning mechanism is used to position the positions of the rotating shaft and the valve disc.

3. The anti-condensation and heat-insulating air valve according to claim 2, wherein The rotation positioning mechanism includes: a positioning arm, a spring piece, and a fixed seat. The fixed seat is fixed on the valve body. A rotatable positioning arm is installed on the fixed seat. A positioning groove is formed at the top end of the positioning arm. The end of the rotating shaft located outside the valve body extends to form a positioning post, and the positioning post can extend into the positioning groove. A spring piece is installed between the positioning arm and the fixed seat, and the spring piece is used to keep the inner wall of the positioning groove on the positioning arm surrounding the positioning post.

4. The anti-condensation and heat-preserving air valve according to claim 3, wherein The fixed seat includes: A fixed cylinder and an extension seat. The fixed cylinder is fixed to the valve body. The end of the fixed cylinder away from the valve body protrudes to form an extension seat. The extension seat is hinged to the positioning arm, and a spring piece is installed at the extension seat; The rotating shaft includes: an installation section and a rotating section. The installation section extends into the valve disc and is fixed to the valve disc. The installation section is fixed with a rotating section located outside the valve body. The outer diameter of the installation section is larger than the outer diameter of the rotating section. A step is formed at the installation section and the rotating section. The fixed cylinder presses the installation section in the valve body through the step.

5. The anti-condensation and heat-insulating air valve according to claim 4, wherein, A positioning block is installed on the inner wall of the valve body, and the positioning block is in close contact with the valve disc in the closed state.

6. The anti-condensation and heat-preservation air valve according to claim 5, characterized in that The valve body includes: an inner layer, an outer layer, and an end sealing mechanism. The outer layer surrounds the inner layer. Heat-insulating cotton is installed between the inner layer and the outer layer. The ends of the inner layer and the outer layer are sealed with the end sealing mechanism.

7. The anti-condensation and heat-insulating air valve according to claim 6, wherein The end sealing mechanism includes: an inner close-fitting ring, an outer close-fitting ring, and an end block. The inner close-fitting ring is in close contact with the inner layer, the outer close-fitting ring is in close contact with the outer layer, and both the inner close-fitting ring and the outer close-fitting ring are fixed to the end block.

8. The anti-condensation and heat-preservation air valve according to claim 6, characterized in that, The valve body further includes: a guide seat, and the guide seat is installed on the inner wall of the inner layer to guide the rotation of the rotating shaft.

9. The manufacturing process of the anti-condensation and heat-insulating air valve is characterized in that, The anti-condensation heat-insulating air valve manufacturing process is implemented based on the anti-condensation heat-insulating air valve according to any one of claims 1 to 7; The anti-condensation heat-insulating air valve manufacturing process includes the following steps: S1. Prepare raw materials, and the raw materials include: a valve body, a valve disc, a rotating shaft, and a rotation positioning mechanism; S2. Place the valve disc into the valve body and manually keep the position of the valve disc inside the valve body; S3. Pass the rotating shaft through the valve body and then extend it into the valve disc; S4. Install the rotation positioning mechanism on the outer wall of the valve body, and the rotation positioning mechanism is located at the end of the rotating shaft outside the valve body.

10. The anti-condensation and heat preservation air valve manufacturing process according to claim 9, characterized in that, Step S4 includes the following steps: S41. Sleeve the fixed seat in the rotation positioning mechanism on the rotating shaft; S42. Fix the fixed cylinder on the fixed seat to the valve body, and the inner wall of the fixed cylinder cooperates with the inner wall of the valve body to position the rotating shaft.

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