Valve for heating and ventilation pipeline

Abstract

The utility model belongs to the technical field of valves, and particularly relates to a heating and ventilation pipeline valve which comprises a valve body, a valve cover is installed on the top of the valve body, a valve rod is rotatably connected to the upper side of the valve cover, a hand wheel is fixedly connected to the top of the valve rod, and a notch is formed in the bottom side of the hand wheel. A notch is formed in the valve body, a threaded rod is in threaded connection with the interior of the valve cover, a handle is fixedly installed at the bottom end of the threaded rod, the top end of the threaded rod is inserted into the notch, filtering devices are fixedly installed on the two sides of the valve body, and fixing devices are installed at the ends, away from the valve body, of the two filtering devices. The valve can effectively reduce mistaken opening and closing risks caused by human factors, sediments and impurities in the valve are cleaned in time, and the pressure bearing capacity of a quick connector on the valve is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to valve technical field, concretely relates to a valve for heating and ventilation pipeline. BACKGROUND

[0002] The valve for heating and ventilation pipeline is a key fluid control equipment, has multiple types and functions, including adjusting flow, preventing backflow and isolating equipment and pipeline system, plays a vital role in the heating and ventilation system, is responsible for regulating and controlling the circulation of air, water, steam and other fluids to ensure the normal operation and temperature regulation of the system, therefore, the design and selection of the valve are crucial to the efficiency and safety of the system.

[0003] At present, although the widely used stop valve in the heating and ventilation pipeline system is simple to operate, there is a risk of human error in opening and closing, in addition, the deposits, impurities and other substances in the pipeline may cause internal blockage of the valve, which is usually caused by debris, corrosion products and other substances inside the valve, thereby affecting the operation and closing effect of the valve, the quick connector is usually used to connect the valve and the heating and ventilation pipeline, such quick connectors are not pressure-resistant, and when the system pressure fluctuates, the quick connector may loosen and cause leakage, therefore, after the quick connector is connected, a binding belt or iron wire is usually used to fix the two ends of the quick connector to prevent the quick connector from loosening, but the fixing by the binding belt is not reliable enough, and the fixing by the iron wire is inconvenient to disassemble and has low work efficiency.

[0004] Therefore, to ensure the normal operation of the valve for heating and ventilation pipeline, effectively reduce the risk of human error in opening and closing, and timely clean the deposits and impurities inside the valve and strengthen the pressure-bearing capacity of the quick connector on the valve are the problems to be solved. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a valve for heating and ventilation pipeline, which can effectively reduce the risk of human error in opening and closing, timely clean the deposits and impurities inside the valve and strengthen the pressure-bearing capacity of the quick connector on the valve.

[0006] The technical scheme adopted by the utility model is as follows:

[0007] A valve for heating and ventilation pipeline, comprising a valve body, a valve cover is installed at the top of the valve body, a valve rod is rotatably connected to the upper side of the valve cover, a hand wheel is fixedly connected to the top of the valve rod, a notch is formed in the bottom side of the hand wheel, a threaded rod is threadedly connected to the inside of the valve cover, a handle is fixedly installed at the bottom end of the threaded rod, the top end of the threaded rod is inserted into the notch, a filter device is fixedly installed on both sides of the valve body, and a fixing device is installed at the end of the filter device away from the valve body.

[0008] The filtering device comprises double-end outer thread pipes which are screwed on both sides of the valve body, the inside of the double-end outer thread pipes is provided with a detachable filter screen, and the other end of the double-end outer thread pipes is screwed with a double-end nut.

[0009] The fixing device comprises a single-end outer thread screw plug which is screwed on one end of the double-end nut, the single-end outer thread screw plug is inserted with a quick connector, and the outside of the single-end outer thread screw plug is provided with a fixing assembly.

[0010] The fixing assembly comprises a ring which is sleeved on the single-end outer thread screw plug, the outside of the ring is uniformly provided with a plurality of C-shaped positioning clamps, one end of the C-shaped positioning clamps close to the ring is screwed with a threaded push rod, the outside of the threaded push rod is screwed with a butterfly nut, and the butterfly nut is used for preventing the threaded push rod from being reversed.

[0011] The inner walls of both ends of the double-end outer thread pipes are embeddedly provided with two annular rubber rings, and the inner walls of the annular rubber rings are attachedly provided with the outside of the detachable filter screen.

[0012] The C-shaped positioning clamps and the threaded push rod are matched with each other to fix the single-end outer thread screw plug and the quick connector.

[0013] The technical effects achieved by the utility model are as follows:

[0014] The utility model relates to a valve for heating and ventilation pipeline, through the mutual cooperation between the threaded rod, handle, notched opening, filtering device and fixing device, fixing assembly and the like, in the process of using the heating and ventilation pipeline valve, the handle is used for rotating the threaded rod to the inboard of the notched opening, thereby fixing the hand wheel, the risk of mistaken opening and closing caused by human factors is effectively reduced, the detachable filter screen of the filtering device can clean the deposits and impurities in the valve in time, and the fixing assembly in the fixing device can strengthen the pressure-bearing capacity of the quick connector between the valve and the pipeline. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is the structural schematic diagram of the utility model;

[0016] Figure 2 is the schematic diagram of the upside structure of the valve body of the utility model;

[0017] Figure 3 is the perspective view of the filtering device of the utility model;

[0018] Figure 4 is the perspective view of the fixing device of the utility model.

[0019] In the drawings, the component list represented by each sign is as follows:

[0020] 1, valve body; 2, valve cover; 3, valve stem; 4, hand wheel; 5, notch; 6, threaded rod; 7, handle; 8, double head pipe; 9, detachable filter screen; 10, double head nut; 11, single head pipe; 12, ring; 13, C-shaped positioning clamp; 14, threaded push rod; 15, butterfly nut; 16, quick connector. DETAILED DESCRIPTION

[0021] In order to make the purpose and advantages of the utility model more clear and obvious, the utility model is specifically described below in combination with examples. It should be understood that the following text is only used to describe one or several specific embodiments of the utility model, and does not strictly limit the protection scope of the utility model specifically requested.

[0022] As shown in Figure 1 and Figure 2 , a valve for heating and ventilation pipeline, comprising a valve body 1, a valve cover 2 is installed on the top of the valve body 1, a valve stem 3 is rotatably connected to the upper side of the valve cover 2, a hand wheel 4 is fixedly connected to the top of the valve stem 3, a notch 5 is formed in the bottom side of the hand wheel 4, a threaded rod 6 is threadedly connected to the inside of the valve cover 2, a handle 7 is fixedly installed at the bottom end of the threaded rod 6, the top end of the threaded rod 6 is inserted into the notch 5, filter devices are fixedly installed on both sides of the valve body 1, and a fixing device is installed on the end of the two filter devices away from the valve body 1.

[0023] Among them, the handle 7 can adjust the threaded rod 6 by manual rotation until it enters the inside of the notch 5, so as to ensure that the hand wheel 4 is firmly locked and cannot be rotated, thereby reducing the risk of misopening or closing caused by improper human operation.

[0024] As shown in Figure 3 , the filter device comprises a double head pipe 8 threadedly connected on both sides of the valve body 1, a detachable filter screen 9 is installed in the inside of the double head pipe 8, and a double head nut 10 is threadedly connected to the other end of the double head pipe 8.

[0025] Specifically, the outer side of both ends of the double head pipe 8 is provided with external threads, so that both ends of the double head pipe 8 are threadedly connected with the valve body 1 and the double head nut 10, and the double head pipe 8 can be directly detached by manually rotating it. The inside of the double head pipe 8 after being detached is assembled with the detachable filter screen 9, and the filter screen functions to intercept the internal deposits and impurities of the pipeline flowing to the valve. Once cleaning is needed, the filter screen can be taken out and reinstalled after being washed with water, and the double head nut 10 is used for connection and disconnection of both ends.

[0026] As shown in Figure 3 and Figure 4As shown, the fixing device comprises a single-end external thread plug 11 screwed at one end of the double-end nut 10, the single-end external thread plug 11 is inserted with a quick connector 16, and the outer side of the single-end external thread plug 11 is provided with a fixing assembly.

[0027] Wherein, one end of the single-end external thread plug 11 is connected with the double-end nut 10, so as to facilitate the disassembly operation; the other end is inserted into the quick connector 16, so as to facilitate the quick butt joint with the heating pipe.

[0028] As shown in Figure 4 The fixing assembly comprises a circular ring 12 sleeved on the single-end external thread plug 11, a plurality of C-shaped positioning clamps 13 are uniformly distributed on the outer side of the circular ring 12, a threaded push rod 14 is screwed at one end of the C-shaped positioning clamp 13 close to the circular ring 12, and a butterfly nut 15 is screwed on the outer side of the threaded push rod 14, which is used to prevent the threaded push rod 14 from being reversed.

[0029] Specifically, the circular ring 12 moves on the single-end external thread plug 11, driving the C-shaped positioning clamp 13 to clamp the connecting end of the single-end external thread plug 11 and the quick connector 16, rotating the threaded push rod 14 through the knob, the threaded push rod 14 moves in the C-shaped positioning clamp 13, and one end of the threaded push rod 14 abuts against one side of the single-end external thread plug 11 connected with the quick connector 16, so as to clamp and fix the single-end external thread plug 11 and the quick connector 16, and the butterfly nut 15 is used to lock the threaded push rod 14 and prevent the threaded push rod 14 from being reversed.

[0030] As shown in Figure 3 The inner walls of the two ends of the double-end external thread pipe 8 are embedded with two annular rubber rings, and the inner walls of the annular rubber rings are installed in close contact with the outer side of the detachable filter screen 9. The annular sealing ring is used to enhance the sealing effect of the pipe connection part to prevent the leakage of the fluid inside the pipe.

[0031] As shown in Figure 4 The C-shaped positioning clamp 13 and the threaded push rod 14 cooperate with each other to fix the single-end external thread plug 11 and the quick connector 16.

[0032] Wherein, the single-end external thread plug 11 and the quick connector 16 are fixed under the interaction between the C-shaped positioning clamp 13 and the threaded push rod 14, which enhances the pressure bearing capacity between the single-end external thread plug 11 and the quick connector 16.

[0033] The working principle of the utility model is: firstly, the single-head external thread plug 11 is butt-jointed with the quick connector 16, then the butterfly nut 15 is loosened by manual mode to adjust the threaded push rod 14, the butt-jointed place of the single-head external thread plug 11 and the quick connector 16 is clamped and fixed by the C-shaped positioning clamp 13 to strengthen the pressure-bearing capacity of the interface of the single-head external thread plug 11 and the quick connector 16, next, the double-head external thread pipe 8 is manually rotated to be disassembled, the detachable filter screen 9 in the pipe is taken out, the filter screen is washed by clean water, after being cleaned, the filter screen is reinstalled to the original position, the step is aimed at conveniently intercepting and washing the dirt in the pipe, then the valve rod 3 is manually screwed to open the heating pipe valve, the valve is returned to the normal operating state, to prevent the valve from being mistakenly closed, the handle 7 is screwed to drive the threaded rod 6 to move upwards until the threaded rod is fixed to the notch 5, thus, the operation preparation work of the heating pipe valve is completed.

[0034] The above is only the preferred embodiment of the utility model, it should be pointed out that, for ordinary skilled person in the art, without departing from the principle of the utility model, a number of improvements and refinements can be made, these improvements and refinements should also be considered as the protection scope of the utility model.The structure, device and operation method not specifically described and explained in the utility model are implemented according to conventional means in the art, without special description and limitation.

Claims

1. A valve for heating, ventilation and plumbing, comprising a valve body (1), characterized in that: The top of the valve body (1) is provided with a valve cover (2), the upper side of the valve cover (2) is rotatably connected with a valve rod (3), the top of the valve rod (3) is fixedly connected with a hand wheel (4), the bottom side of the hand wheel (4) is provided with a notch (5), the inside of the valve cover (2) is threadedly connected with a threaded rod (6), the bottom end of the threaded rod (6) is fixedly installed with a handle (7), the top end of the threaded rod (6) is inserted into the notch (5), both sides of the valve body (1) are fixedly installed with a filter device, and the filter device away from the valve body (1) is provided with a fixing device.

2. A valve for use in a heating, ventilation, and air conditioning system as defined in claim 1, wherein: The filter device comprises double-head external thread pipes (8) which are threadedly connected on both sides of the valve body (1), the inside of the double-head external thread pipe (8) is installed with a detachable filter screen (9), and the other end of the double-head external thread pipe (8) is threadedly connected with a double-head nut (10).

3. A valve for use in heating, ventilation and air conditioning systems as defined in claim 1, wherein: The fixing device comprises a single-head external thread plug (11) which is threadedly connected on one end of the double-head nut (10), the single-head external thread plug (11) is inserted with a quick connector (16), and the outside of the single-head external thread plug (11) is provided with a fixing assembly.

4. A valve for use in a heating, ventilation, and air conditioning system as defined in claim 3, wherein: The fixing assembly comprises a circular ring (12) which is sleeved on the single-head external thread plug (11), a plurality of C-shaped positioning clamps (13) are uniformly distributed on the outside of the circular ring (12), the end of the C-shaped positioning clamp (13) close to the circular ring (12) is threadedly connected with a threaded push rod (14), the outside of the threaded push rod (14) is threadedly connected with a butterfly nut (15), and the butterfly nut (15) is used for preventing the threaded push rod (14) from being reversed.

5. A valve for use in heating, ventilation and air conditioning systems as defined in claim 2, wherein: The inner walls of both ends of the double-head external thread pipe (8) are embeddedly installed with two annular rubber rings, and the inner walls of the annular rubber rings are installed in close contact with the outside of the detachable filter screen (9).

6. A valve for use in heating, ventilation and air conditioning systems as defined in claim 4, wherein: The C-shaped positioning clamp (13) and the threaded push rod (14) are matched with each other to fix the single-head external thread plug (11) and the quick connector (16).

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