Heating and ventilation valve for heating and ventilation engineering
By designing protective shells and support components in HVV valves, and using the structure of springs and annular grooves, the problem of the handwheel being susceptible to collision rotation caused by the HVV opening and closing adjustment is solved, achieving more stable operation and convenient maintenance.
Patent Information
- Application Number
- CN202421474658.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-06-26
AI Technical Summary
The handwheel of existing manual HVV valves is easily rotated by collision, which affects the opening and closing and adjustment of HVV valves.
A HV valve including a valve body, a protective case and a support assembly is designed. By setting the protective case and a support assembly, after the operation is completed, the spring will apply elastic force to the support rod, so that the support rod can drive the drive rod away from the valve stem under the action of the annular groove, thereby preventing the handwheel from rotating and driving the valve stem to rotate.
It effectively avoids the opening and closing and adjustment of the HVV valve being affected by the collision and rotation of the handwheel, making it easier to maintain and repair.
Smart Images
Figure CN222669072U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of heating and ventilation engineering, and particularly relates to a heating and ventilation valve used in heating and ventilation engineering. Background Art
[0002] HVAC control valves, also known as lock valves and residential heating valves, facilitate property management, allowing residents to independently adjust heating temperature and timing. They are environmentally friendly and energy-saving products.
[0003] At present, most of the existing manual HVAC valves are equipped with a handwheel. The operator can rotate the handwheel to drive the valve stem to rotate to achieve the opening, closing and adjustment of the HVAC valve. However, in order to facilitate operation, the handwheel of the HVAC valve is generally directly exposed to the outside. When not in use, the handwheel is easily hit and rotated, which affects the opening, closing and adjustment of the HVAC valve. Utility Model Content
[0004] The purpose of the present utility model is to provide a HVAC valve for HVAC engineering to solve the problems raised in the above background technology.
[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a HVAC valve for HVAC engineering, comprising a valve body, a protective shell, and a support assembly, wherein a valve stem is rotatably mounted on the top of the valve body, a driving rod is provided above the valve stem, and a handwheel is fixedly connected to the upper end of the driving rod, the protective shell is fixedly mounted on the outside of the valve body, and the support assembly is provided inside the protective shell;
[0006] The support assembly includes a bracket, a fixing rod, a support rod and a spring. The bracket is fixedly installed in the protective shell. Two fixing rods are fixedly installed on the bracket. The support rod is sleeved on the fixing rod. The spring is sleeved on one of the fixing rods, and the upper end of the spring abuts against the support rod. An annular groove is opened on the outer circumference of the driving rod, and one end of the support rod is inserted into the annular groove.
[0007] As a preferred embodiment, a linkage groove is provided at the upper end of the valve stem, and the lower end of the drive rod is fixedly connected to a drive block adapted to the linkage groove.
[0008] As a preferred embodiment, the protective shell is formed by hingedly connecting two shells, and the two brackets are fixedly mounted on the inner walls of the two shells respectively.
[0009] As a preferred embodiment, both sides of the upper ends of the two shells are fixedly connected with connecting blocks, and the two connecting blocks are fixedly installed by connecting bolts.
[0010] As a preferred embodiment, an arc-shaped groove is provided in the middle of the upper ends of the two shells, a sealing ring is fixedly connected to the inner wall of the arc-shaped groove, and the driving rod is slidably connected to the sealing ring.
[0011] As a preferred embodiment, anti-slip pads are provided between the two shells and the valve body.
[0012] Compared with the prior art, the beneficial effects of the present invention are:
[0013] This HVAC valve for HVAC projects is designed with a protective shell and support assembly. After operation, the spring applies elastic force to the support rod, causing the support rod to drive the drive rod away from the valve stem under the action of the annular groove, causing the drive block to move out of the linkage groove. When the handwheel rotates due to collision, it will not drive the valve stem to rotate, thus preventing the opening, closing and adjustment of the HVAC valve from being affected.
[0014] The HVAC valve for HVAC engineering is provided with two shells, and the protective shell can be disassembled, thereby facilitating the inspection and maintenance of the parts inside the protective shell. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;
[0017] Figure 3 For this utility model Figure 2 A magnified view of the structure at center A;
[0018] Figure 4 This is a structural diagram of the connection between the drive rod and the valve stem of the utility model.
[0019] In the figure: 1. Valve body; 11. Valve stem; 12. Drive rod; 13. Handwheel; 14. Annular groove; 15. Linkage groove; 16. Drive block; 2. Protective shell; 21. Shell; 22. Connecting block; 23. Sealing ring; 24. Anti-slip pad; 3. Support assembly; 31. Bracket; 32. Fixing rod; 33. Support rod; 34. Spring. DETAILED DESCRIPTION
[0020] The present invention will be further described below with reference to the embodiments.
[0021] The following examples are intended to illustrate the present invention and are not intended to limit the scope of protection of the present invention. The conditions in the examples may be further adjusted according to specific conditions. Simple improvements to the method of the present invention based on the concept of the present invention fall within the scope of protection claimed by the present invention.
[0022] See also Figure 1-4The utility model provides a HVAC valve for HVAC engineering, including a valve body 1, a protective shell 2 and a support assembly 3. A valve stem 11 is rotatably installed on the top of the valve body 1, and a driving rod 12 is provided above the valve stem 11. The upper end of the driving rod 12 is fixedly connected to a handwheel 13. A linkage groove 15 is provided at the upper end of the valve stem 11, and the lower end of the driving rod 12 is fixedly connected to a driving block 16 that is adapted to the linkage groove 15. Through the arrangement of the valve stem 11, driving rod 12, handwheel 13, linkage groove 15 and driving block 16, when the HVAC valve needs to be opened, closed and adjusted, the operator only needs to hold the handwheel 13, press the handwheel 13 to make the driving rod 12 drive the driving block 16 to insert into the linkage groove 15, and then rotate the handwheel 13 to drive the valve stem 11 to rotate, thereby realizing the opening, closing and adjustment of the HVAC valve.
[0023] Reference Figure 3 and Figure 4 When the cam 33 is in the closed position, the cam 33 is in the closed position, and the cam 33 is in the closed position, so that the cam 33 is in the open position, and the cam 33 is in the closed position, so that the cam 33 is in the closed position, and the cam 33 is in the closed position, so that the cam 33 is in the closed position, and the cam 33 is in the closed position, so that the cam 33 is in the closed position, and the cam 33 is in the closed position, so that the cam 33 is in the closed position, and the cam 33 is in the closed position, so that the cam 33 is in the closed position, and the cam 33 is in the closed position, so that the cam 33 is in the closed position, and the cam 33 is in the closed position, so that the cam 33 is in the closed position,
[0024] Reference Figure 1 and Figure 2 The protective shell 2 is hingedly connected by two shells 21. The two brackets 31 are fixedly mounted on the inner walls of the two shells 21 respectively. The two sides of the upper ends of the two shells 21 are fixedly connected with connecting blocks 22. The two connecting blocks 22 are fixedly mounted by connecting bolts. There are anti-slip pads 24 between the two shells 21 and the valve body 1. By setting up two shells 21, the protective shell 2 can be disassembled, which facilitates the inspection and maintenance of the parts inside the protective shell 2.
[0025] Furthermore, an arc-shaped groove is opened in the middle of the upper end of the two shells 21, and a sealing ring 23 is fixedly connected to the inner wall of the arc-shaped groove. The driving rod 12 is slidingly connected to the sealing ring 23. By setting the sealing ring 23, a sealing effect can be achieved on the connection between the driving rod 12 and the protective shell 2.
[0026] The working principle and usage process of the present invention: First, through the arrangement of the valve stem 11, the driving rod 12, the handwheel 13, the linkage groove 15 and the driving block 16, when the HVAC valve needs to be opened, closed and adjusted, the operator only needs to hold the handwheel 13, press the handwheel 13 to make the driving rod 12 drive the driving block 16 to be inserted into the linkage groove 15, and then rotate the handwheel 13 to drive the valve stem 11 to rotate, thereby realizing the opening and closing and adjustment of the HVAC valve. Through the arrangement of the protective shell 2 and the support assembly 3, after the operation is completed, the spring 34 will exert elastic force on the support rod 33, so that the support rod 33 drives the driving rod 12 away from the valve stem 11 under the action of the annular groove 14, so that the driving block 16 is moved out of the linkage groove 15. When the handwheel 13 is rotated by collision, it will not drive the valve stem 11 to rotate, thereby avoiding the opening and closing and adjustment of the HVAC valve being affected.
[0027] 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A HVAC valve for HVAC engineering, comprising a valve body (1), a protective shell (2) and a support assembly (3), characterized in that: A valve stem (11) is rotatably mounted on the top of the valve body (1), a driving rod (12) is provided above the valve stem (11), and a hand wheel (13) is fixedly connected to the upper end of the driving rod (12), the protective shell (2) is fixedly mounted on the outside of the valve body (1), and the support assembly (3) is arranged inside the protective shell (2); The support assembly (3) comprises a bracket (31), a fixing rod (32), a support rod (33) and a spring (34); the bracket (31) is fixedly installed in the protective shell (2); two fixing rods (32) are fixedly installed on the bracket (31); the support rod (33) is sleeved on the fixing rod (32); the spring (34) is sleeved on one of the fixing rods (32); and the upper end of the spring (34) is in contact with the support rod (33); an annular groove (14) is provided on the outer circumference of the driving rod (12); one end of the support rod (33) is inserted into the annular groove (14).
2. A HVAC valve for HVAC engineering according to claim 1, characterized in that: The upper end of the valve stem (11) is provided with a linkage groove (15), and the lower end of the drive rod (12) is fixedly connected to a drive block (16) matched with the linkage groove (15).
3. A HVAC valve for HVAC engineering according to claim 1, characterized in that: The protective shell (2) is formed by hingedly connecting two shells (21), and the two brackets (31) are respectively fixedly mounted on the inner walls of the two shells (21).
4. A HVAC valve for HVAC engineering according to claim 3, characterized in that: Both sides of the upper ends of the two shells (21) are fixedly connected with connection blocks (22), and the two connection blocks (22) are fixedly installed by connecting bolts.
5. The HVAC valve for HVAC engineering according to claim 3, characterized in that: An arc groove is provided in the middle of the upper ends of the two shells (21), a sealing ring (23) is fixedly connected to the inner wall of the arc groove, and the driving rod (12) is slidably connected to the sealing ring (23).
6. The HVAC valve for HVAC engineering according to claim 3, characterized in that: Anti-slip pads (24) are provided between the two housings (21) and the valve body (1).