A heating and ventilation pipe connecting device for heating and ventilation engineering
By employing a combination of upper and lower retaining ring structures and a rotating rod adjusting nut in the HVAC pipe connection device, the problem of easy leakage in traditional HVAC pipe connection devices is solved, achieving better sealing effect and stability.
Patent Information
- Application Number
- CN202521174371.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-10
- Publication Date
- 2026-06-26
- Estimated Expiration
- 2035-06-10
AI Technical Summary
Traditional HVAC pipe connection devices are prone to leakage during use, leading to abnormal pipe delivery.
The system employs an upper and lower snap ring structure, combined with a rotating rod and adjusting nut, to achieve a tight connection of the pipeline through the cooperation of a support spring and a pressure plate. Furthermore, the sealing effect is enhanced through the cooperation of a lifting ring and a traction plate.
It effectively prevents leakage at pipe connections and improves the sealing and stability of pipe connections.
Smart Images
Figure CN224414576U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of HVAC pipe connection devices, specifically an HVAC pipe connection device used in HVAC engineering. Background Technology
[0002] HVAC engineering mainly involves projects in building construction that include "refrigeration and air conditioning maintenance, HVAC, HVAC installation, plumbing, water supply and drainage, boilers, kilns, etc." During HVAC engineering construction, HVAC pipes are often used, and connection devices are required when connecting and connecting HVAC pipes.
[0003] Traditional connection devices typically involve bolts installed on both sides of the pipes to connect them. However, as the pipes are used, leaks can occur in the seal between the bolts and the flanges. Relying solely on bolts for fixing has certain drawbacks, leading to leaks in HVAC pipes during use and affecting the normal operation of the pipeline. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a heating and ventilation pipe connection device for heating and ventilation engineering, which has the advantages of good sealing effect and convenient use, and solves the problems mentioned in the background art.
[0005] This utility model provides the following technical solution: a heating and ventilation pipe connection device for heating and ventilation engineering, including a left pipe, a right pipe installed on the outside of the left pipe, an upper retaining ring installed on the outer wall of the left pipe, a lower retaining ring rotatably connected to the upper retaining ring, a fixing plate fixedly mounted on the upper retaining ring, a locking plate fixedly mounted on the lower retaining ring, a rotating rod rotatably connected to the outer wall of the fixing plate, an adjusting nut threadedly connected to the outer wall of the rotating rod, a pressure plate movably sleeved on the rotating rod, a support spring movably sleeved on the rotating rod, a support seat fixedly mounted on the outer wall of the upper retaining ring, a screw rotatably connected to the inner cavity of the support seat, a lifting ring threadedly connected to the outer wall of the screw, a traction plate rotatably connected to the outer wall of the lifting ring, and an auxiliary plate rotatably connected to the outer wall of the lifting ring.
[0006] As a preferred technical solution of this utility model: the inner wall shape of the upper and lower retaining rings matches the outer wall shape of the left and right pipes, and both the upper and lower retaining rings are made of stainless steel.
[0007] As a preferred technical solution of this utility model: the two ends of the outer wall of the support spring are in contact with the outer walls of the pressure plate and the adjusting nut respectively, and the pressure plate is made of high carbon steel.
[0008] As a preferred technical solution of this utility model: the top of the pressure plate is attached to the bottom of the locking plate, and the pressure plate is made of natural rubber.
[0009] As a preferred technical solution of this utility model: the end of the auxiliary plate away from the lifting ring is rotatably connected to the outer wall of the traction ring, and the end of the traction plate away from the lifting ring is rotatably connected to the outer wall of the moving ring.
[0010] As a preferred technical solution of this utility model: the inner wall diameter of the traction ring and the moving ring is equal to the outer wall diameter of the left pipe and the right pipe, and the traction ring is made of stainless steel.
[0011] Compared with the prior art, the present invention has the following beneficial effects:
[0012] 1. This HVAC pipe connection device for HVAC engineering uses upper and lower retaining rings at the pipe connection points. These retaining rings are fixed by a rotating rod and an adjusting nut, allowing them to seal the gaps at the pipe connection points. This results in a better sealing effect for the pipes after the bolts and retaining rings are in place, preventing leaks at bolt and flange connections that occur with traditional pipes after a period of use.
[0013] 2. This HVAC pipe connection device for HVAC engineering uses a screw installed in the inner cavity of the support base. By rotating the screw, the lifting ring is driven, causing the lifting ring to move upward along the outer wall of the screw. This drives the traction ring and the moving ring, bringing them closer together. This results in a tighter connection between the left and right pipes, providing a better sealing effect for the HVAC pipes. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0015] Figure 2 This is a schematic diagram of the upper retaining ring structure of this utility model;
[0016] Figure 3 This is a schematic diagram of the lower retaining ring structure of this utility model;
[0017] Figure 4 This is a schematic diagram of the rotating rod structure of this utility model;
[0018] Figure 5 This is a schematic diagram of the traction ring structure of this utility model.
[0019] In the diagram: 1. Left pipe; 2. Right pipe; 3. Upper retaining ring; 4. Lower retaining ring; 5. Fixed plate; 6. Locking plate; 7. Rotating rod; 8. Adjusting nut; 9. Pressure plate; 10. Support spring; 11. Support base; 12. Screw; 13. Traction ring; 14. Moving ring; 15. Lifting ring; 16. Traction plate; 17. Auxiliary plate. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figure 1 - Figure 5 A heating and ventilation pipe connection device for heating and ventilation engineering includes a left pipe 1, a right pipe 2 installed on the outside of the left pipe 1, an upper retaining ring 3 installed on the outer wall of the left pipe 1, a lower retaining ring 4 rotatably connected to the upper retaining ring 3, a fixed plate 5 fixedly mounted on the upper retaining ring 3, a locking plate 6 fixedly mounted on the lower retaining ring 4, a rotating rod 7 rotatably connected to the outer wall of the fixed plate 5, an adjusting nut 8 threadedly connected to the outer wall of the rotating rod 7, a pressure plate 9 movably sleeved on the rotating rod 7, a support spring 10 movably sleeved on the rotating rod 7, a support seat 11 fixedly mounted on the outer wall of the upper retaining ring 3, a screw 12 rotatably connected to the inner cavity of the support seat 11, a lifting ring 15 threadedly connected to the outer wall of the screw 12, a traction plate 16 rotatably connected to the outer wall of the lifting ring 15, an auxiliary plate 17 rotatably connected to the outer wall of the lifting ring 15, a traction ring 13 movably sleeved on the outer wall of the right pipe 2, and a moving ring 14 movably sleeved on the outer wall of the left pipe 1.
[0022] In the above structure, the upper retaining ring 3 and the lower retaining ring 4 installed on the outer walls of the left pipe 1 and the right pipe 2 form a sealed connection between the left pipe 1 and the right pipe 2 under the action of the upper retaining ring 3 and the lower retaining ring 4 are connected under the action of the rotating rod 7 and the adjusting nut 8, thereby making the connection between the left pipe 1 and the right pipe 2 more tight.
[0023] In a preferred embodiment: the inner wall shape of the upper retaining ring 3 and the lower retaining ring 4 matches the outer wall shape of the left pipe 1 and the right pipe 2, and both the upper retaining ring 3 and the lower retaining ring 4 are made of stainless steel;
[0024] In the above structure, the upper retaining ring 3 and the lower retaining ring 4 are installed between the left pipe 1 and the right pipe 2. After the left pipe 1 and the right pipe 2 are fixed with bolts, the upper retaining ring 3 and the lower retaining ring 4 are used to seal the connection between the left pipe 1 and the right pipe 2, so that leakage is prevented at the sealed connection between the left pipe 1 and the right pipe 2 during use.
[0025] In a preferred embodiment: the two ends of the outer wall of the support spring 10 are in contact with the outer walls of the pressure plate 9 and the adjusting nut 8, respectively, and the pressure plate 9 is made of high carbon steel;
[0026] In the above structure, the support spring 10 provided on the outer wall of the rotating rod 7 is compressed by adjusting the position of the adjusting nut 8, so that the pressure plate 9 can be attached to the outer wall of the locking plate 6 under the drive of the support spring 10, which can fix the rotating rod 7 and allow the upper retaining ring 3 and the lower retaining ring 4 to be assembled and connected, thereby sealing the connection between the left pipe 1 and the right pipe 2.
[0027] In a preferred embodiment: the top of the pressure plate 9 is attached to the bottom of the locking plate 6, and the pressure plate 9 is made of natural rubber;
[0028] In the above structure, the pressure plate 9 provided on the outer wall of the rotating rod 7 is driven by the support spring 10, so that the pressure plate 9 is attached to the bottom of the locking plate 6, so that the rotating rod 7 cannot be separated from the inner cavity of the fixing plate 5 and the locking plate 6, thereby allowing the upper retaining ring 3 and the lower retaining ring 4 to be combined and connected together.
[0029] In a preferred embodiment: the end of the auxiliary plate 17 away from the lifting ring 15 is rotatably connected to the outer wall of the traction ring 13, and the end of the traction plate 16 away from the lifting ring 15 is rotatably connected to the outer wall of the moving ring 14.
[0030] In the above structure, by using the auxiliary plates 17 and traction plates 16 provided on both sides of the outer wall of the lifting ring 15, when the screw 12 is rotated and the lifting ring 15 moves upward along the outer wall of the screw 12, the traction plates 16 and auxiliary plates 17 can be pulled to move. At this time, the traction ring 13 and the moving ring 14 can be moved, and under the action of the traction ring 13 and the moving ring 14, the left pipe 1 and the right pipe 2 are brought together, which further assists in the connection between the left pipe 1 and the right pipe 2.
[0031] In a preferred embodiment: the inner wall diameter of the traction ring 13 and the moving ring 14 is equal to the outer wall diameter of the left pipe 1 and the right pipe 2, and the traction ring 13 is made of stainless steel;
[0032] In the above structure, the traction ring 13 and the moving ring 14 set on the outer walls of the left pipe 1 and the right pipe 2 can pull the traction plate 16 and the auxiliary plate 17 during the movement of the lifting ring 15. As the lifting ring 15 moves, the traction ring 13 and the moving ring 14 can pull the left pipe 1 and the right pipe 2 together, so that the left pipe 1 and the right pipe 2 fit together and the sealing is better.
[0033] Working Principle: During use, the above equipment connects the left pipe 1 and the right pipe 2 using bolts. The upper retaining ring 3 and the lower retaining ring 4 are then fitted onto the outer walls of the left pipe 1 and the right pipe 2. The rotating rod 7 is then rotated, causing its outer wall to enter the inner cavity of the locking plate 6. The position of the adjusting nut 8 is adjusted to compress the support spring 10. This compression provides elasticity to the pressure plate 9, causing its top to fit against the bottom of the locking plate 6, thus fixing the rotating rod 7. The rotating rod 7 then combines the upper retaining ring 3 and the lower retaining ring 4, ensuring that their inner walls are flush with the left pipe 1 and the right pipe 2. The outer walls of pipes 2 fit together, thus assisting in the installation of left pipe 1 and right pipe 2, making the connection between left pipe 1 and right pipe 2 tighter. Then, the screw 12 is rotated. As the screw 12 rotates, the lifting ring 15 moves upward along the outer wall of the screw 12. When the lifting ring 15 moves upward, it can pull the auxiliary plate 17 and the traction plate 16, thereby causing the traction ring 13 and the moving ring 14 to move along the outer walls of left pipe 1 and right pipe 2, playing an auxiliary pulling role on left pipe 1 and right pipe 2, making the fit between left pipe 1 and right pipe 2 tighter, and realizing the connection and sealing of left pipe 1 and right pipe 2.
[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A heating and ventilation pipe connection device for heating and ventilation engineering, comprising a left pipe (1), characterized in that: A right pipe (2) is installed on the outside of the left pipe (1). An upper retaining ring (3) is installed on the outer wall of the left pipe (1). A lower retaining ring (4) is rotatably connected to the upper retaining ring (3). A fixing plate (5) is fixedly installed on the upper retaining ring (3). A locking plate (6) is fixedly installed on the lower retaining ring (4). A rotating rod (7) is rotatably connected to the outer wall of the fixing plate (5). An adjusting nut (8) is threaded onto the outer wall of the rotating rod (7). A pressure plate (9) is movably sleeved on the rotating rod (7). A support spring (10) is attached to the upper retaining ring (3). A support seat (11) is fixedly mounted on the outer wall of the upper retaining ring (3). A screw (12) is rotatably connected to the inner cavity of the support seat (11). A lifting ring (15) is threadedly connected to the outer wall of the screw (12). A traction plate (16) is rotatably connected to the outer wall of the lifting ring (15). An auxiliary plate (17) is rotatably connected to the outer wall of the lifting ring (15). A traction ring (13) is movably sleeved on the outer wall of the right pipe (2). A moving ring (14) is movably sleeved on the outer wall of the left pipe (1).
2. The HVAC pipe connection device for HVAC engineering according to claim 1, characterized in that: The inner wall shape of the upper retaining ring (3) and the lower retaining ring (4) matches the outer wall shape of the left pipe (1) and the right pipe (2), and both the upper retaining ring (3) and the lower retaining ring (4) are made of stainless steel.
3. The HVAC pipe connection device for HVAC engineering according to claim 1, characterized in that: The outer ends of the support spring (10) are in contact with the outer walls of the pressure plate (9) and the adjusting nut (8), respectively, and the pressure plate (9) is made of high carbon steel.
4. A heating and ventilation pipe connection device for heating and ventilation engineering according to claim 1, characterized in that: The top of the pressure plate (9) is attached to the bottom of the locking plate (6), and the pressure plate (9) is made of natural rubber.
5. A heating and ventilation pipe connection device for heating and ventilation engineering according to claim 1, characterized in that: The auxiliary plate (17) is rotatably connected to the outer wall of the traction ring (13) at one end away from the lifting ring (15), and the traction plate (16) is rotatably connected to the outer wall of the moving ring (14) at one end away from the lifting ring (15).
6. A heating and ventilation pipe connection device for heating and ventilation engineering according to claim 1, characterized in that: The inner diameter of the traction ring (13) and the moving ring (14) is equal to the outer diameter of the left pipe (1) and the right pipe (2), and the traction ring (13) is made of stainless steel.