Heating and ventilation pipeline valve opening and closing device

Abstract

Provided is a heating and ventilation pipeline valve opening and closing device. Generally, a household heat supply pipeline is installed below a hand basin of a bathroom or inside a cabinet of a kitchen, and when a valve needs to be opened and closed, the valve cannot be operated due to the limited space. The device comprises an external box (2), the external box is connected with a worm ring (1) in a sliding mode, the worm ring is meshed with a worm (7), an auxiliary bevel gear (8) is fixed on a fulcrum shaft (5) of the worm, the auxiliary bevel gear is meshed with a main bevel gear (9), the main bevel gear is fixed at the end of a rotating rod (3), and the rotating rod (3) is connected with the worm ring (1) in a sliding mode. The rotating rod is connected with the side face of the external box through a bearing. The valve is used for opening and closing the heating and ventilation pipeline valve.

Description

Technical Field

[0001] The utility model relates to an opening and closing device for a HVAC pipeline valve. Background Art

[0002] HVAC pipes are pipes for household heating. The valves of HVAC pipes are used to control the opening and closing of HVAC pipes. Usually, household heating pipes are installed under the washbasin in the bathroom or inside the cabinet in the kitchen. When the valves need to be opened and closed, they are often unable to be operated due to limited space. Utility Model Content

[0003] The purpose of the utility model is to make up for the deficiencies of the prior art and to provide a HVAC pipeline valve opening and closing device.

[0004] The above purpose is achieved through the following technical solutions:

[0005] A HVAC pipeline valve opening and closing device comprises an external box, the external box is slidably connected to a worm ring, the worm ring is meshed with a worm, a secondary bevel gear is fixed on the support shaft of the worm, the secondary bevel gear is meshed with a main bevel gear, the main bevel gear is fixed to the end of a rotating rod, and the rotating rod is connected to the side of the external box through a bearing.

[0006] The HVAC pipeline valve opening and closing device has a handle fixed on the external box.

[0007] The HVAC pipeline valve opening and closing device has a slot on the volute ring. Beneficial Effects

[0008] 1. The utility model can extend the device into a narrow space, so that the valve handle is placed in the slot, and the rotating rod is rotated to rotate the volute ring, so that the valve can be opened and closed, which can improve the convenience of operation.

[0009] 2. The utility model has a simple structure and is easy to carry. It can be inserted into a narrow space to realize the opening and closing operations of the valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Attached Figure 1 It is a top view of the utility model;

[0011] Attached Figure 2 It is a bottom view of the utility model;

[0012] Attached Figure 3 It is a schematic diagram of the internal structure of the utility model;

[0013] Attached Figure 4 Yes Figure 1 AA section view;

[0014] Attached Figure 5 Yes Figure 1 BB section view;

[0015] Attached Figure 6 This is a structural schematic diagram of the valve in an open state when the utility model is in use;

[0016] Attached Figure 7 It is a structural schematic diagram of the valve closed state when the utility model is used;

[0017] In the figure: 1. worm ring; 2. external box; 3. rotating rod; 4. handle; 5. support shaft; 6. convex strip; 7. worm; 8. secondary bevel gear; 9. main bevel gear; 10. slot; 11. valve; 12. handle. DETAILED DESCRIPTION

[0018] A HVAC pipeline valve opening and closing device comprises an external box 2, which is slidably connected to a volute ring 1, the front end of the external box is open, and the upper and lower surfaces have convex strips 6, which cooperate with the grooves of the volute ring to achieve sliding, the volute ring is meshed with a worm 7, a secondary bevel gear 8 is fixed on the support shaft 5 of the worm, the secondary bevel gear is meshed with a main bevel gear 9, the main bevel gear is fixed to the end of a rotating rod 3, and the rotating rod is connected to the side of the external box through a bearing.

[0019] The HVAC pipeline valve opening and closing device has a handle 4 fixed on the external box.

[0020] The HVAC pipeline valve opening and closing device has a slot 10 formed on the volute ring.

[0021] Working principle: When using, refer to Figure 6 , hold the handle with one hand and insert the device through the narrow space to the valve position, then put the handle 12 of the valve 11 into the slot. If the valve is in the open state and needs to be closed, turn the lever, the main bevel gear and the auxiliary bevel gear engage, drive the support shaft to rotate, the worm gear rotates and drives the worm ring to rotate, so that it drives the valve handle to rotate to close the valve. If the initial valve is in the closed state and needs to be opened, refer to Figure 7 First, rotate the rotating rod so that the worm ring rotating slot is at the position of the worm. At this time, the valve handle can be placed in the slot, and then rotate the rotating rod in the opposite direction to drive the worm to rotate. The worm drives the worm ring to rotate, so that the worm ring rotates in the opposite direction to open the valve.

Claims

1. A HVAC pipeline valve opening and closing device, characterized by: Its composition includes an external box, the external box is slidably connected to the worm ring, the worm ring is meshed with the worm, a secondary bevel gear is fixed on the support shaft of the worm, the secondary bevel gear is meshed with the main bevel gear, the main bevel gear is fixed on the end of the rotating rod, and the rotating rod is connected to the side of the external box through a bearing.

2. The HVAC pipeline valve opening and closing device according to claim 1 is characterized in that: A handle is fixed on the external box.

3. The HVAC pipeline valve opening and closing device according to claim 2 is characterized in that: The worm ring is provided with a slot.

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