Locking device of heating and ventilation pipeline
By designing a locking device for HVAC ducts, partial sealing is achieved using locking devices and sealing strips, solving the problem of production stoppages when HVAC ducts malfunction, reducing downtime losses, and improving the sealing performance.
Patent Information
- Application Number
- CN202520572530.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-29
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-03-29
AI Technical Summary
In existing technologies, when HVAC ducts malfunction, the entire ventilation duct needs to be shut down, causing normal ducts to be unable to ventilate and resulting in serious production losses.
A locking device for HVAC ducts was designed. By combining a locking device and a sealing strip, it allows staff to partially seal off faulty areas without affecting ventilation in normal areas. Partial sealing is achieved using a pivot and a baffle, and the sealing strip fills the gaps to ensure a good seal.
In the event of a localized pipeline failure, only the affected area can be sealed off without affecting ventilation in the normal area, reducing production downtime losses. Furthermore, the sealing strips enhance the sealing performance and prevent heating leaks.
Smart Images
Figure CN223740309U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the locking device technical field of ventilation pipeline, especially a kind of locking device of heating ventilation pipeline. BACKGROUND
[0002] The locking device of ventilation pipeline is a kind of equipment for controlling the opening and closing state of airflow passage in ventilation pipeline system, mainly used to ensure the device and measure that ventilation system is safely operated under maintenance, overhaul and fault condition.
[0003] In prior art, when warm air ventilation pipeline needs to be checked and maintained, in order to prevent the warm air in the pipeline from causing harm to workers, the warm air ventilation system needs to be closed to check the pipeline, when the warm air ventilation system is large, the pipeline line is long and the layout is complicated, when the ventilation pipeline in part region appears fault and needs to be maintained, the whole ventilation pipeline needs to be closed, the closure of the whole ventilation pipeline will cause normal pipeline to be unable to continue ventilation, thereby causing more serious production loss. UTILITY MODEL CONTENT
[0004] The utility model aims at solving the problem that in prior art, when the ventilation pipeline in part region appears fault and needs to be maintained, the whole ventilation pipeline needs to be closed, the closure of the whole ventilation pipeline will cause normal pipeline to be unable to continue ventilation, thereby causing more serious production loss, and proposes a kind of locking device of heating ventilation pipeline.
[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme: including, pipeline body, the inside of pipeline body is provided with locking device, the locking device includes first fixed block, the outer surface of one side of first fixed block is equipped with first sliding slot, the inner wall of first sliding slot is connected with first sliding block slidingly, the outer surface of first sliding block is fixedly connected with second fixed block, the outer surface of second fixed block is provided with spring, one end of spring is fixedly connected with first moving block, the outer surface of first moving block is fixedly connected with four second moving blocks evenly arranged, the inner wall of first fixed block is rotatably connected with pivot.
[0006] Preferably, the outer surface of pipeline body is fixedly connected with the outer surface of first fixed block, and the other end of spring is fixedly connected with the outer surface of second fixed block.
[0007] Preferably, the outer surface of first fixed block is fixedly sleeved with third fixed block, and the inner wall of third fixed block is equipped with four second sliding slots evenly arranged.
[0008] Preferably, the outer surfaces of the four second moving blocks are respectively slidably connected with the inner walls of the four second sliding grooves, and the outer surface of the first moving block is attached to the inner wall of the third fixed block.
[0009] Preferably, the outer surface of the rotating shaft is provided with two third sliding grooves, and the inner wall of the first moving block is fixedly connected with two second sliding blocks.
[0010] Preferably, the outer surfaces of the two second sliding blocks are respectively slidably connected with the inner walls of the two third sliding grooves, and the inner wall of the first moving block is in contact with the outer surface of the rotating shaft.
[0011] Preferably, the inner wall of the second fixed block is in contact with the outer surface of the rotating shaft, the inner wall of the pipeline body is provided with a circular groove, the outer surface of the pipeline body is provided with a circular hole, and one end of the rotating shaft is rotatably connected with the inner wall of the circular groove.
[0012] Preferably, the outer surface of the rotating shaft is rotatably connected with the inner wall of the circular hole, the outer surface of the rotating shaft is fixedly connected with two baffles, and the outer surfaces of the two baffles are respectively attached to the inner wall of the pipeline body.
[0013] Preferably, the inner wall of the pipeline body is fixedly connected with a first sealing strip and a second sealing strip, the outer surface of the first sealing strip is attached to the outer surface of one of the baffles, and the outer surface of the second sealing strip is attached to the outer surface of the other baffle.
[0014] Preferably, the outer surface of the second sealing strip is attached to the outer surface of the other baffle, the other side of the outer surface of the first fixed block is fixedly embedded with a sealing ring, the outer surface of the sealing ring is fixedly connected with the outer surface of the pipeline body, and the inner wall of the pipeline body is provided with a flow sensor.
[0015] Compared with the prior art, the utility model has the advantages and positive effects that,
[0016] 1、In the utility model, when problems occur in the pipeline, the staff can close the pipeline with problems by rotating the baffle to prevent the pipeline with problems from continuing to circulate warm air, so that it is not necessary to close the whole warm air ventilation pipeline, the normal pipeline continues to circulate warm air, and the loss of warm air production is reduced.
[0017] 2、In the utility model, the first sealing strip and the second sealing strip are arranged to fill the gap between the baffle and the pipeline, so that the warm air is prevented from circulating through the gap between the baffle and the pipeline during the closing of the pipeline, and the sealing effect of the locking device of the warm air ventilation pipeline is ensured. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1A front perspective view of a locking device for HVAC ducts is provided for this utility model.
[0019] Figure 2 A front perspective view of a circular groove for a locking device of a heating, ventilation and air conditioning duct is provided for this utility model.
[0020] Figure 3 A three-dimensional cross-sectional view of the pipe section structure of a locking device for HVAC ducts is provided for this utility model.
[0021] Figure 4 A front perspective perspective view of a baffle plate for a locking device of a heating, ventilation and air conditioning duct is provided for this utility model;
[0022] Figure 5 A frontal perspective perspective view of a flow sensor for a locking device of a heating, ventilation and air conditioning duct is provided for this utility model.
[0023] Figure 6 A perspective view of a ductwork locking device for HVAC ducts is provided for this utility model.
[0024] Figure 7 A frontal perspective view of the sealing ring of a locking device for HVAC ducts is provided for this utility model.
[0025] Figure 8 A front perspective view of the first fixing block of a locking device for HVAC ducts proposed in this utility model;
[0026] Figure 9 A front perspective view of the first slider of a locking device for HVAC ducts proposed in this utility model;
[0027] Figure 10 A front perspective perspective view of a spring for a locking device of a heating, ventilation and air conditioning duct is provided for this utility model.
[0028] Figure 11 A three-dimensional cross-sectional view of the first moving block portion of a locking device for a heating, ventilation and air conditioning duct is provided for this utility model.
[0029] Figure 12 A frontal perspective view of the first moving block of a locking device for a heating, ventilation and air conditioning duct, as proposed in this utility model;
[0030] Figure 13 A three-dimensional cross-sectional view of the third fixing block of a locking device for HVAC ducts is provided for this utility model.
[0031] Figure 14 A front perspective perspective view of the second slide groove of a locking device for HVAC ducts proposed in this utility model;
[0032] Figure 15The present invention provides a front perspective view of the second moving block of a locking device for HVAC ducts.
[0033] Legend: 1. Pipe body; 2. Locking device; 201. First fixing block; 202. First sliding groove; 203. First slider; 204. Second fixing block; 205. Spring; 206. First moving block; 207. Second slider; 208. Second moving block; 209. Third fixing block; 210. Second sliding groove; 211. Rotating shaft; 212. Third sliding groove; 3. Circular groove; 4. Circular hole; 5. Baffle; 6. First sealing strip; 7. Second sealing strip; 8. Sealing ring; 9. Flow sensor. Detailed Implementation
[0034] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0035] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0036] Example 1: As Figures 1-15As shown, this utility model provides a locking device for a heating, ventilation, and air conditioning (HVAC) duct, comprising a duct body 1, a locking device 2 disposed inside the duct body 1, the locking device 2 including a first fixing block 201, a first sliding groove 202 formed on one outer surface of the first fixing block 201, a first sliding block 203 slidably connected to the inner wall of the first sliding groove 202, a second fixing block 204 fixedly connected to the outer surface of the first sliding block 203, a spring 205 disposed on the outer surface of the second fixing block 204, a first moving block 206 fixedly connected to one end of the spring 205, four evenly arranged second moving blocks 208 fixedly connected to the outer surface of the first moving block 206, a rotating shaft 211 rotatably connected to the inner wall of the first fixing block 201, the outer surface of the duct body 1 fixedly connected to the outer surface of the first fixing block 201, the other end of the spring 205 fixedly connected to the outer surface of the second fixing block 204, and a third fixing block 209 fixedly sleeved on the outer surface of the first fixing block 201, the inner wall of the third fixing block 209 having a... Four evenly arranged second sliding grooves 210, the outer surfaces of four second moving blocks 208 slide against the inner walls of the four second sliding grooves 210 respectively, the outer surface of the first moving block 206 is in contact with the inner wall of the third fixed block 209, two third sliding grooves 212 are opened on the outer surface of the rotating shaft 211, two second sliders 207 are fixedly connected to the inner wall of the first moving block 206, the outer surfaces of the two second sliders 207 are slidably connected to the inner walls of the two third sliding grooves 212 respectively, the inner wall of the first moving block 206 is in contact with the outer surface of the rotating shaft 211, the inner wall of the second fixed block 204 is in contact with the outer surface of the rotating shaft 211, a circular groove 3 is opened on the inner wall of the pipe body 1, a circular hole 4 is opened on the outer surface of the pipe body 1, one end of the rotating shaft 211 is rotatably connected to the inner wall of the circular groove 3, the outer surface of the rotating shaft 211 is rotatably connected to the inner wall of the circular hole 4, and two baffles 5 are fixedly connected to the outer surface of the rotating shaft 211, the outer surfaces of the two baffles 5 are in contact with the inner wall of the pipe body 1.
[0037] The effect achieved by the entire embodiment 1 is that, when a locking device for a heating, ventilation, and air conditioning duct is in use, if a fault occurs in the duct body 1 and needs to be inspected and repaired, the worker can use the locking device 2 to prevent the flow of warm air into the duct body 1. The worker can then move the first moving block 206, and the inner wall of the first moving block 206 will slide along the outer surface of the third sliding groove 212. When the first moving block 206 moves, it will stretch the spring 205. At the same time, when the first moving block 206 moves, it will drive the second moving block 208 and the second sliding block 207 to move. When the outer surface of the second moving block 208 slides along the inner wall of the second sliding groove 210, the outer surface of the first moving block 206 will slide along the third fixed block 207. The inner wall of the second sliding block 208 slides until the outer surface of the second sliding block 208 is no longer in contact with the inner wall of the second sliding groove 210. At this time, the outer surface of the second sliding block 207 also slides along the inner wall of the third sliding groove 212 to the other end of the third sliding groove 212. Then, the operator manually rotates the first sliding block 206 ninety degrees. The first sliding block 206 will drive the second sliding block 207 and the second sliding block 208 to rotate ninety degrees, and at the same time, it will also drive the spring 205 to rotate. When the second sliding block 207 rotates, it will drive the third sliding groove 212 to rotate. When the third sliding groove 212 rotates, it will drive the rotating shaft 211 to rotate. When the rotating shaft 211 rotates, the outer surface of the rotating shaft 211 will rotate along the inner wall of the second fixed block 204, the first fixed block 201, the sealing ring 8, the round hole 4 and the round groove 3. When the rotating shaft 211 rotates, it will drive the two baffles 5 to rotate. When the rotating shaft 211 rotates 90 degrees, the outer surfaces of the two baffles 5 will contact the first sealing strip 6 and the second sealing strip 7 respectively. When one end of the spring 205 rotates with the first moving block 206, the other end of the spring 205 will drive the second fixed block 204 to rotate. The second fixed block 204 will drive the outer surface of the first slider 203 to rotate along the inner wall of the first slide groove 202. At the same time, when the four second moving blocks 208 rotate 90 degrees, the four second moving blocks 208 will be located on the outer surface of the four second slide grooves 210 respectively. At this time, the operator no longer holds the first moving block 206, and the tension of the spring 205 itself will push the outer surface of the first moving block 206 towards the inner wall of the third fixed block 209. As the first moving block 206 is pulled in, its outer surface slides along the outer surface of the third fixed block 209. At this time, the four second moving blocks 208 slide into the four second sliding grooves 210 respectively. Simultaneously, as the first moving block 206 moves, it drives the second slider 207 to slide along the inner wall of the third sliding groove 212 until the outer surface of the second moving block 208 is completely in contact with the inner wall of the second sliding groove 210. At this point, the outer surface of the second slider 207 slides into the other end of the third sliding groove 212. This device rotates the first moving block 206, which in turn drives the rotating shaft 211 to rotate. When the rotating shaft 211 rotates, it causes the baffle 5 to come into contact with the inner wall of the pipe body 1. Then, the second moving blocks 208 contact the second sliding grooves 210 respectively, thus causing the rotating shaft 211 to rotate.This ensures the stability of the locking device 2. The baffle 5 prevents warm air from flowing into the pipe body 1. When a problem occurs in part of the ventilation duct, simply rotating the baffle 5 blocks the flow of warm air. This solves the problem of having to shut down the entire ventilation duct when maintenance is needed for a malfunction in a part of the duct, which would prevent normal ventilation from continuing and cause more serious production losses.
[0038] Example 2: As Figures 1-15 As shown, a first sealing strip 6 is fixedly connected to the inner wall of the pipe body 1, and a second sealing strip 7 is fixedly connected to the inner wall of the pipe body 1. The outer surface of the first sealing strip 6 is in contact with the outer surface of one of the baffles 5, and the outer surface of the second sealing strip 7 is in contact with the outer surface of the other side of the baffle 5. A sealing ring 8 is fixedly embedded on the outer surface of the other side of the first fixing block 201. The outer surface of the sealing ring 8 is fixedly connected to the outer surface of the pipe body 1. A flow sensor 9 is provided on the inner wall of the pipe body 1.
[0039] The effect achieved by the entire embodiment 2 is that, when a locking device for a heating, ventilation and air conditioning duct is used, the operator needs to rotate the shaft 211 to drive the baffle 5 to block the heating and ventilation until the outer surface of the baffle 5 contacts the inner wall of the duct body 1. At this time, one side of the outer surface of the baffle 5 is in contact with the first sealing strip 6, and the other side of the outer surface of the baffle 5 is in contact with the second sealing strip 7. By setting the first sealing strip 6 and the second sealing strip 7, the gap between the baffle 5 and the duct body 1 is filled, thereby preventing the heating from flowing through the gap between the baffle 5 and the duct body 1 during the sealing of the duct body 1, thus ensuring the sealing effect of the locking device for the heating, ventilation and air conditioning duct.
[0040] Working principle: When using a locking device for HVAC ducts, the operator moves the first moving block 206, which stretches the spring 205. Simultaneously, the movement of the first moving block 206 drives the second moving block 208 and the second slider 207 to move until the outer surface of the second moving block 208 no longer contacts the inner wall of the second slide groove 210. At this point, the outer surface of the second slider 207 also slides to the other end of the third slide groove 212. Then, the operator manually rotates the first moving block 206 90 degrees, and the rotating shaft 211 also rotates 90 degrees. The outer surfaces of the two baffles 5 then contact the first sealing strip 6 and the second sealing strip 7 respectively. Through the first sealing strip 6 and the second sealing strip 7, the gap between the baffle 5 and the duct body 1 is filled, thereby preventing heat from leaking out during the sealing of the duct body 1. When the gap is cleared, the worker no longer holds the first moving block 206. The tension of the spring 205 drives the first moving block 206 and the second moving block 208 to move. The second moving block 208 slides into the second groove 210 until the outer surface of the second moving block 208 is completely in contact with the inner wall of the second groove 210. This device rotates the first moving block 206, which in turn drives the rotating shaft 211 to rotate. When the rotating shaft 211 rotates, it drives the baffle 5 to fit against the inner wall of the pipe body 1. The baffle 5 prevents warm air from flowing into the pipe body 1. Therefore, when there is a problem in the pipe body 1, the worker can rotate the baffle 5 to close the faulty pipe body 1, preventing the faulty pipe body 1 from continuing to flow with warm air. This eliminates the need to shut down the entire warm air ventilation duct, ensuring the continued warm air ventilation of the normal pipe body 1 and reducing the loss of heating shutdown.
[0041] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A heating, ventilation and plumbing duct closure device comprising a duct body (1), characterised in that: The inside of the pipeline body (1) is provided with a locking device (2), the first fixed block (201) is provided with a first sliding groove (202) on one side of the outer surface, the inner wall of the first sliding groove (202) is slidably connected with a first sliding block (203), the outer surface of the first sliding block (203) is fixedly connected with a second fixed block (204), the outer surface of the second fixed block (204) is provided with a spring (205), one end of the spring (205) is fixedly connected with a first moving block (206), the outer surface of the first moving block (206) is fixedly connected with four second moving blocks (208) arranged uniformly, and the inner wall of the first fixed block (201) is rotatably connected with a rotating shaft (211).
2. A heating, ventilation and air conditioning duct closure device according to claim 1, wherein: The outer surface of the first fixed block (201) is fixedly connected with the outer surface of the first fixed block (201), and the other end of the spring (205) is fixedly connected with the outer surface of the second fixed block (204).
3. A heating, ventilation and air conditioning duct closure device according to claim 1, wherein: The outer surface of the first fixed block (201) is fixedly connected with the outer surface of the first fixed block (201), and the other end of the spring (205) is fixedly connected with the outer surface of the second fixed block (204).
4. A heating, ventilation and air conditioning duct closure device according to claim 1, wherein: The outer surface of the first fixed block (201) is fixedly connected with the outer surface of the first fixed block (201), and the other end of the spring (205) is fixedly connected with the outer surface of the second fixed block (204).
5. A heating, ventilation, and air conditioning duct closure device according to claim 1, wherein: The outer surface of the first fixed block (201) is fixedly connected with the outer surface of the first fixed block (201), and the other end of the spring (205) is fixedly connected with the outer surface of the second fixed block (204).
6. A heating, ventilation and air conditioning duct closure device according to claim 5, wherein: The outer surface of the first fixed block (201) is fixedly connected with the outer surface of the first fixed block (201), and the other end of the spring (205) is fixedly connected with the outer surface of the second fixed block (204).
7. A heating, ventilation, and air conditioning duct closure device according to claim 1, wherein: The inner wall of the second fixed block (204) is in contact with the outer surface of the rotating shaft (211), the inner wall of the pipeline body (1) is provided with a circular groove (3), the outer surface of the pipeline body (1) is provided with a circular hole (4), and one end of the rotating shaft (211) is rotatably connected with the inner wall of the circular groove (3).
8. A heating, ventilation, and air conditioning duct closure device according to claim 1, wherein: The outer surface of the rotating shaft (211) is rotatably connected with the inner wall of the circular hole (4), and the outer surface of the rotating shaft (211) is fixedly connected with two baffles (5), and the outer surfaces of the two baffles (5) are in contact with the inner wall of the pipeline body (1).
9. A heating, ventilation, and air conditioning duct closure device according to claim 1, wherein: The inner wall of the pipeline body (1) is fixedly connected with a first sealing strip (6), the inner wall of the pipeline body (1) is fixedly connected with a second sealing strip (7), and the outer surface of the first sealing strip (6) is in contact with the outer surface of one of the baffles (5).
10. A heating, ventilation and air conditioning duct closure device according to claim 9, wherein: The outer surface of the second sealing strip (7) is in contact with the outer surface of the other baffle (5), the other side of the first fixed block (201) is fixedly embedded with a sealing ring (8), the outer surface of the sealing ring (8) is fixedly connected with the outer surface of the pipeline body (1), and the inner wall of the pipeline body (1) is provided with a flow sensor (9).