CN111102360A

CN111102360A - Heating valve

Info

Publication number: CN111102360A
Application number: CN202010125969.7A
Authority: CN
Inventors: 黄晓峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-02-27
Filing date: 2020-02-27
Publication date: 2020-05-05

Abstract

The invention relates to the field of valves, in particular to a heating valve. A heating valve comprises a valve body, a valve bonnet connected with the valve body, a screw rod rotatably fixed on the valve bonnet, a valve clack fixed on the inner wall of the valve bonnet through threads, a through hole arranged in the middle of the screw rod, an internal thread structure at the upper end of the through hole, and a sealing round hole at the lower end; a hexagonal blind hole is arranged in the middle of the valve clack and is in limit fit with the hexagonal tail end of the screw rod; the upper end of the limiting rod is in threaded connection with the internal thread structure; the bottom end of the limiting rod is in limiting fit with the bottom of the hexagonal blind hole. According to the invention, the valve core structure is redesigned, a professional heating and ventilation installer carries out limit adjustment on the heating valve for the first time according to the condition of the heating system, and a user can use the system stably in the later period. The scheme has low cost and high practicability, is a supplement to the heating market and has better market popularization value.

Description

Heating valve

Technical Field

The invention relates to the field of valves, in particular to a heating valve.

Background

The heating valve is a common valve in the heating field, is arranged at a joint of a side section of a heating radiator and is used for opening and closing to adjust the water inlet and return amount of hot water medium entering the heating radiator. The structure of the prior art heater valve is shown as an authorization notice number CN 208348644U, a slow-opening screw rod is driven to rotate by rotating a hand wheel of a valve, and a valve body channel is closed or opened by a slow-opening pressing cap. The front end of the heating valve is provided with a connecting pipe connected with the heating radiator, and the heating radiator is a special valve.

When the radiators are installed in a family, a plurality of groups are generally installed, for example, one to three groups are installed in a living room, one group is installed in each bedroom, and one group is installed in a bathroom. After the heating radiator is installed, the pipeline routing mode has multiple modes, including a double-pipe parallel mode, a series mode, octopus type connection and the like. As shown in fig. 1, the wall-hanging stove 5 or the central heating pipeline not only supplies the heating medium, but also the water pump thereof always supplies the circulating kinetic energy of the heating medium. The heat dissipation of each radiator 6 to the environment is different because of the influence of each factor such as the size of the radiator, the volume of the space where the radiator is located, the flow of the heating medium and the like. For example, the heat dissipation capacity of the radiator 6 close to the wall-mounted furnace 5 is too large, the temperature of the room is too high, the temperature of the heat medium of the radiator 61 far away from the wall-mounted furnace 5 is low, the flow rate is slow, the temperature of the room is low, and the distribution of the pipeline heat medium is unbalanced.

The distribution of the heating media is a dynamic system process, for example, the heating media supply of each heating radiator is adjusted, after the demand balance is achieved, the heating valve 7 on one heating radiator is closed, and other heating radiators need to be adjusted professionally again due to different pipeline flow resistances, so that the requirement of the heating comfort level can be met. In radiator heating, adjustment of professionals is a scheme, but has defects, and another common scheme is to install a dynamic balance constant temperature heating valve on a heating valve, such as a dynamic balance constant temperature heating valve shown in publication No. CN 208967045U. The temperature control valve head has accurate temperature control, is a more common scheme, but has problems, and firstly, the cost of the temperature control valve head is high; and secondly, the service life is limited, the temperature regulation performance is greatly reduced after two or three heating seasons, and the quality guarantee period of the inlet temperature control valve head is only 5 years.

Disclosure of Invention

Aiming at the problem of balance adjustment of a heating system of a heating radiator, the invention designs a novel heating valve and provides another system scheme for balance adjustment.

In order to achieve the purpose, the invention adopts the following technical scheme:

a heating valve comprises a valve body, a valve bonnet connected with the valve body, a screw rod rotatably fixed on the valve bonnet, a valve clack fixed on the inner wall of the valve bonnet through threads, a through hole arranged in the middle of the screw rod, an internal thread structure at the upper end of the through hole, and a sealing round hole at the lower end; a hexagonal blind hole is arranged in the middle of the valve clack and is in limit fit with the hexagonal tail end of the screw rod; the middle part of the limiting rod is provided with a sealing ring, and the upper end of the limiting rod is in threaded connection with the internal thread structure; the sealing ring is in sealing fit with the sealing circular hole, and the bottom end of the limiting rod is in limiting fit with the bottom of the hexagonal blind hole; the top end of the limiting rod is also provided with an adjusting opening.

The invention can also adopt the technical scheme that:

the upper part of the internal thread structure is also connected with a screw which compresses a hand wheel.

The middle of the limiting rod is provided with an annular groove for preventing a sealing ring.

The adjusting opening of the limiting rod is of a straight groove structure.

The middle of the screw rod is provided with a through hole, the lower end of the through hole is of an internal thread structure, and the upper end of the through hole is provided with a sealing circular hole; the middle part of the limiting rod is provided with a sealing ring, and the lower end of the limiting rod is in threaded connection with the internal thread structure; the sealing ring is in sealing fit with the sealing circular hole, and the bottom end of the limiting rod is in limiting fit with the bottom of the hexagonal blind hole; the top end of the limiting rod is also provided with an adjusting opening.

According to the heating valve, the valve core structure is redesigned, the opening and closing limiting function of the heating valve is set through the limiting rod, a professional heating ventilation installer carries out limiting adjustment on the heating valves on different groups of heating plates according to the overall system condition of multiple groups of heating plates, the opening and closing range is set, overheating or overcooling of the heating plates is avoided, after the setting is finished, a user adjusts the heating valve in the set range, the balance influence on the overall heating system is small, and heating is stable. Meanwhile, the scheme does not need to increase a temperature control valve head, and is low in cost and high in practicability. The heating valve of the invention is a supplement to the heating market and has better market popularization value.

Drawings

FIG. 1 is a schematic diagram of a conventional radiator heating system;

FIG. 2, a schematic cross-sectional view of a preferred embodiment heater valve;

FIG. 3 is a schematic perspective exploded view of a preferred embodiment heater valve;

fig. 4 is a schematic perspective view of a preferred embodiment of a stop rod.

Detailed Description

The heater valve of the present invention is further described with reference to the accompanying drawings.

As shown in fig. 2 to 4, a heater valve comprises a valve body 1, a valve bonnet 10 connected with the valve body 1, a screw rod 11 rotatably fixed on the valve bonnet 10, a valve flap 12 fixed on the inner wall of the valve bonnet 10 through threads, a through hole 13 arranged in the middle of the screw rod 11, an internal thread structure 14 arranged at the upper end of the through hole 13, and a sealing round hole 15 arranged at the lower end; a hexagonal blind hole 16 is formed in the center of the valve clack 12, and the hexagonal blind hole 16 is in limit fit with a hexagonal tail end 17 of the screw rod 11; the device also comprises a limiting rod 2, wherein a sealing ring 20 is arranged in the middle of the limiting rod 2, and the upper end of the sealing ring is in threaded connection with the internal thread structure 14; the sealing ring 20 is in sealing fit with the sealing round hole 15, and the bottom end 21 of the limiting rod 2 is in limiting fit with the bottom of the hexagonal blind hole 16; the top end of the limiting rod 2 is also provided with an adjusting opening 22.

The upper part of the internal thread structure 14 is also connected with a screw 19, and the screw 19 compresses a hand wheel 18. The hand wheel 18 is rotated to drive the screw rod 11 to rotate.

The adjusting opening 22 of the limiting rod 2 is of a straight groove structure or an inner hexagonal structure or a cross groove structure, and the like, so that the limiting rod 2 can be conveniently rotated by a tool, and the distance between the bottom end 21 of the limiting rod 2 and the bottom of the hexagonal blind hole 16 can be adjusted. The closer the distance is during adjustment, the smaller the flow rate of the inlet of the heating valve is limited, and more heating medium can be conveyed to other heating radiators; conversely, the farther the distance is or the radiator with insufficient heat dissipation capacity is, the larger the distance between the bottom end 21 of the adjusting limiting rod 2 and the bottom of the hexagonal blind hole 16 is, the smaller the water resistance entering the heating valve and the radiator is, and the more the heating medium flows in.

The valve core structure of the heating valve is greatly adjusted by adding the limiting rod 2. The limiting rod 2 is in threaded connection with the screw rod 11, the screw 19 is opened, and the position of the limiting rod 2 can be rotationally adjusted through a screwdriver or other tools, so that the limiting rod is convenient and attractive. The screw 19 not only fastens the hand wheel 18, but also can hide the through hole 13 to prevent foreign matters from entering. The upper end of the through hole 13 is provided with an internal thread structure 14, and the same thread can meet the connection of the screw 19 and the screw rod 11, so that the screw rod can be used for two purposes at one time.

The center of the valve clack 12 is provided with a hexagonal blind hole 16, and the hexagonal blind hole 16 is in limit fit with the hexagonal tail end 17 of the screw rod 11. When the screw rod 11 is rotated, the valve clack 12 is driven to rotate, and the valve clack 12 moves upwards or downwards. The hexagonal blind hole 16 and the hexagonal tail end 17 are used as a mutual transmission structure, and can be in a hexagonal structure as shown in the drawing, or in an octagonal mutual limiting shape or a concave-convex matching shape, so that power is transmitted, and the up-and-down motion is not influenced.

The middle of the limiting rod 2 is provided with an annular groove 23 for preventing the sealing ring 20. The sealing ring 20 slides up and down in the sealing circular hole 15 to prevent the valve from leaking.

In another embodiment, the threaded end of the stop rod 2 may also be designed to face downward. The middle of the screw rod 11 is provided with a through hole 13, the lower end of the through hole 13 is provided with an internal thread structure 14, and the upper end is provided with a sealing round hole 15; a sealing ring 20 is arranged in the middle of the limiting rod 2, and the lower end of the sealing ring is in threaded connection with the internal thread structure 14; the sealing ring 20 is in sealing fit with the sealing round hole 15, and the bottom end 21 of the limiting rod 2 is in limiting fit with the bottom of the hexagonal blind hole 16; the top end of the limiting rod 2 is also provided with an adjusting opening 22. The design structure can also meet the sealing and limiting effects of the limiting rod 2.

The heating valve in the prior art has consistent opening and closing strokes, and can not be subjected to limit adjustment according to different conditions of a plurality of groups of heating radiators in practical application. Meanwhile, the scheme does not need to increase a temperature control valve head, and is low in cost and high in practicability. The heating valve of the invention is a supplement to the heating market and has better market popularization value.

Claims

1. The utility model provides a heating valve, includes a valve body (1), a valve cap (10) of being connected with valve body (1), a lead screw (11) are rotatably fixed on valve cap (10), still are fixed with a valve clack (12), its characterized in that through the screw thread at valve cap (10) inner wall: a through hole (13) is formed in the middle of the screw rod (11), an internal thread structure (14) is arranged at the upper end of the through hole (13), and a sealing circular hole (15) is formed at the lower end of the through hole (13); a hexagonal blind hole (16) is formed in the center of the valve clack (12), and the hexagonal blind hole (16) is in limit fit with a hexagonal tail end (17) of the screw rod (11);

the device also comprises a limiting rod (2), a sealing ring (20) is arranged in the middle of the limiting rod (2), and the upper end of the limiting rod is in threaded connection with the internal thread structure (14); the sealing ring (20) is in sealing fit with the sealing round hole (15), and the bottom end (21) of the limiting rod (2) is in limiting fit with the bottom of the hexagonal blind hole (16); the top end of the limiting rod (2) is also provided with an adjusting opening (22).

2. A heating valve according to claim 1, characterized in that: the upper part of the internal thread structure (14) is also connected with a screw (19), and the screw (19) compresses a hand wheel (18).

3. A heating valve according to claim 1, characterized in that: the middle of the limiting rod (2) is provided with an annular groove (23) for preventing the sealing ring (20).

4. A heating valve according to claim 1, characterized in that: the adjusting opening (22) of the limiting rod (2) is of a straight groove structure.

5. A heating valve according to claim 1, characterized in that: a through hole (13) is formed in the middle of the screw rod (11), an internal thread structure (14) is arranged at the lower end of the through hole (13), and a sealing circular hole (15) is formed at the upper end of the through hole; a sealing ring (20) is arranged in the middle of the limiting rod (2), and the lower end of the limiting rod is in threaded connection with the internal thread structure (14); the sealing ring (20) is in sealing fit with the sealing round hole (15), and the bottom end (21) of the limiting rod (2) is in limiting fit with the bottom of the hexagonal blind hole (16); the top end of the limiting rod (2) is also provided with an adjusting opening (22).