Anti-freezing heating and ventilation pipeline valve

Abstract

The anti-freezing heating and ventilation pipeline valve comprises a shell and a rotating handle, a fixing plate is fixedly installed on the upper surface of the shell, scales are arranged on the upper surface of the fixing plate, and the rotating handle is installed on the upper surface of the fixing plate in an embedded mode. According to the anti-freezing heating and ventilation pipeline valve, after the heating and ventilation pipeline valve is used, a user can pull a rotating handle upwards, then a control block is driven to slide from the inner wall of a lower limiting base in a sliding mode till clamping is stopped, the control block slides upwards along with the control block, and the control block is in sliding friction connection with the inner wall of an upper limiting base; the heating and ventilation pipeline valve has the function of preventing the rotating handle from rotating reversely, the situation that the rotating handle rotates due to accidental contact is prevented, and meanwhile the situation that the rotating handle is driven to rotate due to the fact that the flow speed in the cavity is increased due to the fact that the heating and ventilation pipeline is abnormal is avoided. And the stability performance and the safety performance of the heating and ventilation pipeline valve are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of HVAC, in particular to an antifreeze HVAC pipeline valve. Background Art

[0002] HVAC can be said to be an integral part of a building. HVAC mainly includes aspects such as heating, ventilation and air conditioning. With the continuous improvement of my country's scientific and technological level, there are more and more innovative technologies in the field of HVAC. In HVAC construction projects, in order to meet daily life needs, people have higher and higher requirements for HVAC technology. The existing HVAC technology has developed in the direction of green and environmental protection, and the environmental protection direction is also the general trend of the development of the HVAC field in the future. In the HVAC field, people need to use a variety of equipment and tools, among which HVAC pipe valves are indispensable. HVAC pipe valves can be said to be one of the main components of HVAC pipes. Now people's use of HVAC pipe valves has become very popular.

[0003] Most of the existing HVAC pipe valves are directly installed on both ends of the pipes. Great attention is paid to the sealing of the HVAC pipe valves, but the stability of the HVAC pipe valve handles is often ignored. When an abnormality occurs in the HVAC pipe, the HVAC pipe valve handles may be reversed, causing the HVAC pipe valve to fail, or the handle may be accidentally touched, causing unnecessary losses to the user. When the temperature around the HVAC pipe valve is low, the internal water freezes, causing damage to the valve. Utility Model Content

[0004] The utility model aims to provide an antifreeze HVAC pipe valve to solve the problem in the above background technology that the valve cannot be prevented from reversing.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an antifreeze HVAC pipe valve, comprising a shell and a rotating handle, a fixing plate is fixedly installed on the upper surface of the shell, and a scale is arranged on the upper surface of the fixing plate, a rotating handle is embeddedly installed on the upper surface of the fixing plate, and a pointer is fixedly installed on the upper surface of the rotating handle, the lower end of the rotating handle is fixedly installed on the upper surface of the control block, and a connecting rod is arranged on the lower surface of the control block, a slider is arranged on one side of the connecting rod, and a slide rail is arranged on the outer surface of the slider, the slide rail is embeddedly installed on the inner wall of the lower limit seat, and the lower limit seat is arranged on the inner wall of the shell, an upper limit seat is embeddedly installed on the upper surface of the shell, and the upper limit seat is embeddedly installed on the lower surface of the fixing plate, and a rubber pad is fixedly installed on the inner wall of the upper limit seat,

[0006] Gear 1 is fixedly installed on the lower surface of the lower limit seat, and a valve ball is fixedly installed on the lower surface of gear 1, and the valve ball is embedded in the inner wall of the chamber, and the chamber is penetrated on the outer surface of the shell, and the outer surface of the gear 1 is connected with a sliding rod, and the sliding rod is installed on the inner wall of the shell, and the outer surface of the sliding rod is connected with gear 2, and gear 2 is installed on the upper surface of the inner wall of the shell, and a valve ball is fixedly installed on the lower surface of the gear 2, a fixing frame is fixedly installed on the lower surface of the shell, and a screw is installed on the inner wall of the fixing frame, and a sealing ring is provided on the outer surface of the screw, and a water outlet is embedded in the lower surface of the shell, and the other end of the water outlet is penetrated on the inner wall of the chamber.

[0007] Preferably, the outer surface of the rotating handle is slidably connected to the inner wall of the fixing plate.

[0008] By adopting the above technical solution, the rotating handle can be pressed up and down to be fixed, thereby preventing the rotating handle from reversing.

[0009] Preferably, the outer surface of the control block is snap-connected with the upper surface of the lower limit seat.

[0010] By adopting the above technical solution, the switch or flow rate of the HVAC pipe valve can be adjusted by rotating the handle.

[0011] Preferably, the outer surface of the sliding block is slidably connected to the inner wall of the sliding rail.

[0012] By adopting the above technical solution, when the HVAC pipe valve is not in use, the rotating handle can be driven to move upward and then the control block can be driven to slide upward.

[0013] Preferably, the outer surface of the control block is connected to the inner wall of the upper limit seat by sliding friction.

[0014] By adopting the above technical solution, the rotating handle can be fixed to prevent it from reversing.

[0015] Preferably, the volume of gear one is larger than that of gear two, the outer surface of gear one is meshingly connected with the outer surface of the slide rod, the slide rod is slidably connected with the inner wall of the shell, and the outer surface of the slide rod is meshingly connected with the outer surface of gear two.

[0016] By adopting the above technical solution, the rotation of the handle will drive the gear 1 and the gear 2 to rotate, and the rotation speed of the gear 1 is lower than the rotation speed of the gear 2.

[0017] Preferably, the inner wall of the sealing ring is threadedly connected to the outer surface of the screw.

[0018] By adopting the above technical solution, the water in the chamber can be drained by rotating the screw.

[0019] Compared with the prior art, the utility model has the following beneficial effects: the antifreeze HVAC pipe valve:

[0020] 1. After using the HVAC pipe valve, the user can pull the rotating handle upward, thereby driving the control block to slide and rub against the inner wall of the lower limit seat until it stops engaging. As the control block slides upward, the control block and the inner wall of the upper limit seat are connected by sliding friction, so that the rotating handle is stuck and cannot be rotated, which shows that the HVAC pipe valve has the function of preventing the rotating handle from reversing, preventing the rotating handle from rotating due to accidental contact, and preventing the HVAC pipe from abnormally causing the flow velocity in the chamber to increase and drive the rotating handle to rotate, thereby improving the stability and safety performance of the HVAC pipe valve;

[0021] 2. When the user uses the HVAC pipe valve, the user adjusts the angle of the rotating handle according to the scale to which the pointer of the rotating handle is aligned, thereby controlling the flow rate or switch of the valve. When the valve needs to be closed, the rotating handle drives the gear 1 to rotate, thereby driving the slide bar to slide, thereby driving the gear 2 to rotate, so that the valve ball controlled by the gear 2 closes first, and then the valve ball controlled by the gear 1 closes. Then, the water in the chamber is emptied by rotating the screw, thereby making the chamber in a hollow state, which reflects that the HVAC pipe valve has an antifreeze effect, and at the same time prevents the occurrence of HVAC pipe valve explosions, etc., effectively protecting the service life of parts;

[0022] 3. When the valve is closed, two valve balls can be driven to separate the water in the chamber from the water in the outside pipe. The different closing times of the two valve balls can effectively reduce the residual water inside the chamber, facilitate the subsequent waterproofing operations of the staff, save working time and speed up work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the front section structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the top view structure of the utility model;

[0025] Figure 3 This is a schematic diagram of the front view structure of the utility model;

[0026] Figure 4 This is a schematic diagram of the front section structure of the control block and the upper limit seat of the utility model;

[0027] Figure 5 This is a schematic diagram of the structure of the control block and the upper limit seat of the utility model when viewed from above;

[0028] Figure 6 This is a schematic diagram of the top-sectional structure of gear 1 and gear 2 of the utility model;

[0029] Figure 7 It is a schematic diagram of the top-sectional structure of the chamber of the utility model.

[0030] In the figure: 1. shell; 2. fixing plate; 3. scale; 4. turning handle; 5. pointer; 6. control block; 7. connecting rod; 8. slider; 9. slide rail; 10. lower limit seat; 11. upper limit seat; 12. rubber pad; 13. valve ball; 14. chamber; 15. gear 1; 16. slide rod; 17. gear 2; 18. fixing frame; 19. screw; 20. sealing ring; 21. water outlet. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] See also Figure 1-7 The utility model provides a technical solution: an antifreeze HVAC pipe valve, including a shell 1, a fixing plate 2, a scale 3, a rotating handle 4, a pointer 5, a control block 6, a connecting rod 7, a slider 8, a slide rail 9, a lower limit seat 10, an upper limit seat 11, a rubber pad 12, a valve ball 13, a chamber 14, a gear 15, a slide rod 16, a gear 2 17, a fixing frame 18, a screw 19, a sealing ring 20, and a water outlet 21.

[0033] Example 1

[0034] The HVAC pipe valve has the function of preventing the handle 4 from being turned in reverse, as follows:

[0035] A fixed plate 2 is fixedly mounted on the upper surface of the housing 1, and a scale 3 is provided on the upper surface of the fixed plate 2. A rotating handle 4 is embeddedly mounted on the upper surface of the fixed plate 2, and a pointer 5 is fixedly mounted on the upper surface of the rotating handle 4. The lower end of the rotating handle 4 is fixedly mounted on the upper surface of the control block 6, and a connecting rod 7 is provided on the lower surface of the control block 6. A slider 8 is provided on one side of the connecting rod 7, and a slide rail 9 is provided on the outer surface of the slider 8. The slide rail 9 is embeddedly mounted on the inner wall of the lower limit seat 10, and the lower limit seat 10 is mounted on the inner wall of the housing 1. An upper limit seat 11 is embeddedly mounted on the upper surface of the housing 1, and the upper limit seat 11 is embeddedly mounted on the lower surface of the fixed plate 2, and a rubber pad 12 is fixedly mounted on the inner wall of the upper limit seat 11. The outer surface of the rotating handle 4 is slidably connected to the inner wall of the fixed plate 2. The outer surface of the control block 6 is snap-connected to the upper surface of the lower limit seat 10. The outer surface of the slider 8 is slidably connected to the inner wall of the slide rail 9. The outer surface of the control block 6 and the inner wall of the upper limit seat 11 are connected by sliding friction.

[0036] When the HVAC pipe valve needs to be used, first press the rotating handle 4 downward by hand so that the rotating handle 4 slides downward on the upper surface of the fixed plate 2. When the rotating handle 4 slides downward, the control block 6 will be driven to slide downward. When the control block 6 slides downward, the connecting rod 7 will be driven to slide downward. When the connecting rod 7 slides downward, the slider 8 will be driven to slide downward along the inner wall of the slide rail 9, thereby causing the control block 6 and the rubber pad 12 on the inner wall of the upper limit seat 11 to slide and rub until the control block 6 and the upper limit seat 11 are disconnected. As the rotating handle 4 is pressed downward, the control block 6 continues to slide downward until the outer surface of the control block 6 and the inner wall of the lower limit seat 10 are engaged and connected. Stop pressing the rotating handle 4. The user can press the pointer set on the upper surface of the rotating handle 4. 5 is used to adjust the rotation angle of the rotating handle 4. The scale 3 on the upper surface of the fixed plate 2 pointed to by 5 is used. The scale 3 and the groove on the lower surface of the upper limit seat 11 are correspondingly arranged. Rotating the rotating handle 4 drives the control block 6 to rotate, and then drives the connecting rod 7 to rotate, thereby driving the slider 8 to rotate, so driving the slide rail 9 to rotate, and then driving the lower limit seat 10 to rotate on the inner wall of the shell 1. When the lower limit seat 10 rotates, it will drive the valve ball 13 to rotate on the inner wall of the chamber 14, thereby achieving the function of switching or adjusting the flow rate. When the rotating handle 4 is adjusted, the rotating handle 4 is lifted upward again, so that the control block 6 and the lower limit seat 10 are disengaged, so that the control block 6 and the inner wall of the upper limit seat 11 are slidingly and frictionally connected, so that the rotating handle 4 is stuck and cannot be rotated.

[0037] Example 2

[0038] The HVAC pipe valve has an anti-freeze function, as follows:

[0039] The lower surface of the lower limit seat 10 is fixedly mounted with a gear 15, and the lower surface of the gear 15 is fixedly mounted with a valve ball 13, and the valve ball 13 is embedded on the inner wall of the chamber 14, and the chamber 14 is set through the outer surface of the shell 1, the outer surface of the gear 15 is connected with a slide bar 16, and the slide bar 16 is installed on the inner wall of the shell 1, and the outer surface of the slide bar 16 is connected with a gear 2 17, and the gear 2 17 is installed on the upper surface of the inner wall of the shell 1, and the lower surface of the gear 2 17 is fixedly mounted with a valve ball 13, the lower surface of the shell 1 is fixedly mounted with a fixing frame 18, and a screw 19 is installed on the inner wall of the fixing frame 18, and a sealing ring 20 is arranged on the outer surface of the screw 19, and a water outlet 21 is embedded on the lower surface of the shell 1, and the other end of the water outlet 21 is set through the inner wall of the chamber 14. The inner wall of the sealing ring 20 is threadedly connected with the outer surface of the screw 19.

[0040] When the valve needs to be closed, the handle 4 is rotated. When the handle 4 is rotated, the lower limit seat 10 is driven to rotate on the inner wall of the shell 1. When the lower limit seat 10 is rotated, the gear 15 is driven to rotate. When the gear 15 is rotated, the slide rod 16 is driven to slide to one side along the inner wall of the shell 1. When the slide rod 16 slides to one side, the gear 2 17 is driven to rotate. Since the volume of the gear 15 is larger than the volume of the gear 2 17, the outer surface of the gear 15 is meshed with the outer surface of the slide rod 16, and the slide rod 16 is slidably connected to the inner wall of the shell 1, and the outer surface of the slide rod 16 is meshed with the outer surface of the gear 2 17, so the center points of the gear 15 and the gear 2 17 are not on the same horizontal line, so the center points of the two valve balls 13 are located on different horizontal lines, such as Figure 7 As shown, the chamber 14 inside the housing 1 in the embodiment is arranged in a streamlined shape from left to right.

[0041] so Figure 3 The rotation speed of the valve ball 13 on the left side is greater than that of the valve ball 13 under the rotating handle 4, so the valve ball 13 controlled by the gear 2 17 will close first to block the water outside the pipeline, and then the valve ball 13 controlled by the gear 1 15 will close. The arrangement of the two valve balls 13 is conducive to reducing the pressure inside the valve and improving the sealing performance.

[0042] Then, by rotating the screw 19 installed on the inner wall of the fixing frame 18, the sealing ring 20 is driven to slide upward on the inner wall of the water outlet 21 to drain the water in the chamber 14. Therefore, water will not freeze inside the chamber 14, thereby making the valve have an anti-freeze function. Then, the screw 19 is rotated in the opposite direction to restore the sealing ring 20 to its original position, so that the interior of the valve is in a closed state.

[0043] Working principle: When using the antifreeze HVAC pipe valve, first press the rotating handle 4 downward, then install the pointer 5 and the scale 3 to rotate the rotating handle 4, while driving the valve ball 13 to close, and then rotate the screw 19 to make the chamber 14 in a cavity state, thereby increasing the overall practicality.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A freeze-proof HVAC pipe valve, comprising a housing (1) and a rotating handle (4), Features: A fixing plate (2) is fixedly mounted on the upper surface of the housing (1), and a scale (3) is provided on the upper surface of the fixing plate (2); a rotating handle (4) is embeddedly mounted on the upper surface of the fixing plate (2), and a pointer (5) is fixedly mounted on the upper surface of the rotating handle (4); the lower end of the rotating handle (4) is fixedly mounted on the upper surface of a control block (6), and a connecting rod (7) is provided on the lower surface of the control block (6); a slider (8) is provided on one side of the connecting rod (7), and a slide rail (9) is provided on the outer surface of the slider (8); the slide rail (9) is embeddedly mounted on the inner wall of a lower limit seat (10), and the lower limit seat (10) is mounted on the inner wall of the housing (1); an upper limit seat (11) is embeddedly mounted on the upper surface of the housing (1), and the upper limit seat (11) is embeddedly mounted on the lower surface of the fixing plate (2); a rubber pad (12) is fixedly mounted on the inner wall of the upper limit seat (11); A gear 1 (15) is fixedly mounted on the lower surface of the lower limit seat (10), and a valve ball (13) is fixedly mounted on the lower surface of the gear 1 (15), and the valve ball (13) is embedded in the inner wall of a chamber (14), and the chamber (14) is arranged through the outer surface of the housing (1), and the outer surface of the gear 1 (15) is connected to a slide bar (16), and the slide bar (16) is mounted on the inner wall of the housing (1), and the outer surface of the slide bar (16) is connected to a gear 2 (17), and the gear The second gear (17) is mounted on the upper surface of the inner wall of the outer shell (1); the valve ball (13) is fixedly mounted on the lower surface of the second gear (17); a fixing frame (18) is fixedly mounted on the lower surface of the outer shell (1), and a screw (19) is mounted on the inner wall of the fixing frame (18); a sealing ring (20) is arranged on the outer surface of the screw (19); a water outlet (21) is embedded on the lower surface of the outer shell (1), and the other end of the water outlet (21) is arranged through the inner wall of the chamber (14).

2. The antifreeze HVAC pipe valve according to claim 1, characterized in that: The outer surface of the rotating handle (4) is slidably connected to the inner wall of the fixing plate (2).

3. The antifreeze HVAC pipe valve according to claim 1, characterized in that: The outer surface of the control block (6) is snap-connected with the upper surface of the lower limit seat (10).

4. The antifreeze HVAC pipe valve according to claim 1, characterized in that: The outer surface of the sliding block (8) is slidably connected to the inner wall of the sliding rail (9).

5. The antifreeze HVAC pipe valve according to claim 1, characterized in that: The outer surface of the control block (6) and the inner wall of the upper limit seat (11) are connected by sliding friction.

6. The antifreeze HVAC pipe valve according to claim 1, characterized in that: The volume of the gear one (15) is larger than the volume of the gear two (17); the outer surface of the gear one (15) is meshingly connected with the outer surface of the slide rod (16); the slide rod (16) is slidably connected with the inner wall of the housing (1); and the outer surface of the slide rod (16) is meshingly connected with the outer surface of the gear two (17).

7. The antifreeze HVAC pipe valve according to claim 1, characterized in that: The inner wall of the sealing ring (20) is threadedly connected to the outer surface of the screw rod (19).

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