阅读说明：本技术 一种燃气阀中用于调节多个出口流量的调节机构 (Adjusting mechanism for adjusting flow of multiple outlets in gas valve ) 是由 周银 于 2019-04-19 设计创作，主要内容包括：本发明公开了一种燃气阀中用于调节多个出口流量的调节机构,包括致动器、推杆、压板组件、调节杆和阀体,阀体上有多个出气口,从进气口到每个出气口之间,需要通过一个调节口,在各调节口中设置有调节杆,在各调节杆和阀体之间设置有复位装置,并且各调节口围绕推杆设置,致动器可以驱动推杆沿轴线运动。压板组件设置在调节杆的尾部,压板组件包括压板和调节杆压头,调节杆压头头部表面相对于压板表面的相对高度可以调节,以使调节杆压头与所有调节杆尾部接触。致动器驱动推杆运动,可以促使压板组件上下运动,进而压缩或放松调节杆,同时改变各个调节杆的头部与对应调节口的开口尺寸,使阀体上需要调节流量的各个出气口的出气流量同步变化。(The invention discloses an adjusting mechanism for adjusting the flow of a plurality of outlets in a gas valve, which comprises an actuator, a push rod, a pressure plate assembly, an adjusting rod and a valve body, wherein the valve body is provided with a plurality of gas outlets, an adjusting port is required to pass through from a gas inlet to each gas outlet, the adjusting rod is arranged in each adjusting port, a resetting device is arranged between each adjusting rod and the valve body, each adjusting port is arranged around the push rod, and the actuator can drive the push rod to move along the axis. The clamp plate subassembly sets up at the afterbody of adjusting the pole, and the clamp plate subassembly includes the clamp plate and adjusts the pole pressure head, adjusts the relative height on pole pressure head surface for the clamp plate surface and can adjust to make and adjust the pole pressure head and all adjust the contact of pole afterbody. The actuator drives the push rod to move, so that the pressure plate assembly can move up and down, the adjusting rods are further compressed or loosened, and the size of the head of each adjusting rod and the size of the opening of the corresponding adjusting opening are changed, so that the air outlet flow of each air outlet needing to adjust the flow on the valve body is synchronously changed.)

1. An adjustment mechanism for adjusting a plurality of outlet flows in a gas valve, characterized in that: comprises an actuator (1), a push rod (2), a pressure plate component (3), an adjusting rod (4) and a valve body (5), the number of the adjusting rods (4) is two or more, the actuator (1), the push rod (2), the pressure plate assembly (3) and the adjusting rods (4) are all arranged on the valve body (5), the valve body (5) is provided with an air inlet (51) and two or more air outlets, adjusting ports are arranged between the air inlet (51) and the at least two air outlets needing to adjust the flow, adjusting rods (4) are arranged in the adjusting ports, a resetting device (6) is arranged between the adjusting rod (4) and the valve body (5), the pressure plate component (3) comprises a pressure plate (31), when the pressure plate (31) works, the pressure plate can press all the adjusting rods (4) simultaneously by moving the actuator (1).

2. An adjustment mechanism in a gas valve for adjusting the flow of a plurality of outlets, as defined in claim 1, wherein: the adjusting openings are arranged around the push rod (2), and an output shaft (11) of the actuator (1) and the push rod (2) are coaxially arranged.

3. An adjustment mechanism in a gas valve for adjusting the flow of a plurality of outlets, as defined in claim 1, wherein: the pressure plate component (3) is provided with an adjusting device corresponding to at least one adjusting rod (4), the adjusting device comprises adjusting rod pressure heads (32), and the head surface of each adjusting rod pressure head (32) is pressed at the tail part of the corresponding adjusting rod (4).

4. An adjustment mechanism in a gas valve for adjusting the flow of a plurality of outlets as defined in claim 2, wherein: the relative height of the head surface of the adjusting rod pressure head (32) relative to the surface of the pressure plate (31) can be adjusted.

5. An adjustment mechanism in a gas valve for adjusting the flow of a plurality of outlets, as defined in claim 1, wherein: the head of the adjusting rod (4) is provided with a conical head (41).

6. An adjustment mechanism in a gas valve for adjusting the flow of a plurality of outlets as defined in claim 5, wherein: the conical head (41) of the adjusting rod (4) is a rubber sealing piece with a conical shape, and the rubber sealing piece is sleeved on the head of the adjusting rod (4).

7. An adjustment mechanism in a gas valve for adjusting the flow of a plurality of outlets, as defined in claim 1, wherein: the actuator (1) and the push rod (2) can be combined into a linear driving actuator.

8. An adjustment mechanism in a gas valve for adjusting the flow of a plurality of outlets, as defined in claim 1, wherein: the regulating port has a certain basic flow, namely when the regulating port is regulated to the minimum flow, the regulating port cannot be completely closed, namely the regulating port is set to have the minimum flow.

9. An adjustment mechanism in a gas valve for adjusting the flow of a plurality of outlets, as defined in claim 1, wherein: when the regulating port is regulated to a minimum flow rate, the regulating port is completely closed, but a minimum flow rate port is arranged between the air inlet (51) and the air outlet and in parallel with the regulating port, and the minimum flow rate from the air inlet (51) to each air outlet is set through the minimum flow rate port.

10. An adjustment mechanism in a gas valve for adjusting the flow of a plurality of outlets, as defined in claim 1, wherein: a groove (55) is formed in the valve body (5), and the pressure plate assembly (3) is embedded into the groove (55) to be installed.

11. Regulating mechanism for regulating the flow of several outlets in a gas valve according to claim 10, characterised in that a pressure plate cover plate (7) is provided outside the pressure plate assembly (3), the pressure plate cover plate (7) and the groove (55) enclosing the pressure plate assembly (3) inside the valve body (5).

12. An adjustment mechanism in a gas valve for adjusting the flow of a plurality of outlets as defined in claim 11, wherein: and an operation opening (71) is formed in the pressure plate cover plate (7).

13. An adjustment mechanism in a gas valve for adjusting the flow of a plurality of outlets as defined in claim 12, wherein: an operation cover (72) is arranged on the operation opening (71), and the space where the pressure plate assembly (3) is located is sealed by the operation cover (72).

14. An adjustment mechanism for adjusting the flow of a plurality of outlets in a gas valve as defined in claim 4, wherein: the adjusting rod pressure head (32) is in threaded connection with the pressure plate (31).

15. An adjustment mechanism for adjusting the flow of a plurality of outlets in a gas valve as claimed in claim 4 or 14, wherein: and a locking spring (33) is arranged between the adjusting rod pressure head (32) and the pressure plate (31).

Technical Field

The invention relates to a regulating mechanism for regulating the flow of two or more outlets, in particular to a regulating mechanism for regulating the flow of a plurality of outlets in a gas valve.

Background

The fireplace is safe and efficient traditional heating equipment, can be used as a decorative article besides the heating function, and has good ornamental value. With the change of production and life, the requirements of people on the fireplace are higher and higher, and a novel gas fireplace with a main burner and an auxiliary burner or even a plurality of burners is also developed. The gas valve for the novel gas fireplace needs two or more gas outlets for independent gas supply, and in order to balance and/or unify the flame heights of two or more burners, when the flame size is adjusted, namely the flow of the gas valve is adjusted, the flow of two or more gas outlets on the gas valve needs to be adjusted simultaneously.

However, in the conventional gas valve, two or more independent adjusting mechanisms for adjusting the flow rates of the outlets generally perform adjusting actions respectively, and the adjustment synchronization of the two or more outlets is controlled by program setting. Two sets or two sets of independent mechanisms are respectively executed, the structure is complex, the cost is increased, and because two or more than two driving parts are simultaneously controlled, the synchronous control difficulty is increased, and faults are easy to occur.

Disclosure of Invention

The invention aims to provide an adjusting mechanism for adjusting the flow of a plurality of outlets in a gas valve. The invention can drive a pressure plate component through an actuator, so that the pressure plate component synchronously adjusts the flow passing through two or more air outlets on the gas valve.

The technical scheme adopted by the invention for solving the technical problems is as follows: an adjustment mechanism for adjusting the flow of a plurality of outlets in a gas valve: the flow regulating mechanism comprises an actuator, a push rod, a pressure plate assembly, a regulating rod and a valve body. The valve body is provided with an air inlet and two or more air outlets, adjusting ports are arranged between the air inlet and the at least two air outlets needing to adjust the flow, namely, each adjusting port is communicated with the corresponding air inlet, an adjusting rod is arranged on the axis of each adjusting port, the head of each adjusting rod is provided with a conical head, and a resetting device is arranged between each adjusting rod and the valve body; and each regulating port is arranged around the push rod, the output shaft of the actuator and the push rod are arranged on the same axis, and the pressure plate assembly comprises a pressure plate and is arranged at the tail part of the regulating rod.

In a further technical scheme, the pressure plate assembly is provided with an adjusting device at a position corresponding to at least one adjusting rod, the adjusting device comprises an adjusting rod pressure head, and the surface of the head of the adjusting rod pressure head is pressed on the tail of the adjusting rod.

In a further technical scheme, the relative height of the head surface of the adjusting rod pressure head relative to the surface of the pressure plate can be adjusted.

In a further technical scheme, the conical head of the adjusting rod is a rubber sealing piece with a conical shape, and the rubber sealing piece is sleeved on the head of the adjusting rod.

When the air outlet device works, the output shaft of the actuator moves to drive the push rod to move forwards, so that the push rod pushes the pressure plate assembly to move towards the direction far away from the adjusting rod, and the adjusting rod is further caused to move upwards under the action of the resetting device, so that the size of a channel opening formed by the conical head of the adjusting rod and each adjusting opening is reduced, and the size of the air outlet flow of each corresponding air outlet is reduced through synchronous adjustment.

If the flow adjustment is required to be increased, the output shaft of the actuator is enabled to move reversely to drive the push rod to move downwards, so that the pressure plate assembly moves downwards, and the pressure plate assembly moves downwards to press the adjusting rod to move downwards together, so that the size of a channel opening formed by the conical head of the adjusting rod and each adjusting opening is enlarged, and the size of the air outlet flow of each air outlet is increased through synchronous adjustment.

The gas from each gas outlet can additionally pass through an independent channel, a switch device for controlling the on-off of each independent channel, such as an electromagnetic valve and the like, is arranged in the channel, and the independent gas supply of each gas outlet to each burner on the gas fireplace and the matching adjustment of big fire and small fire can be realized through the switch device.

In addition, because the adjusting rods have processing errors in the manufacturing process, the degree of the pressure plate assembly pressing each adjusting rod is inconsistent, the manufacturing errors of the adjusting rods can be compensated by adjusting the relative height of the head surface of each adjusting rod pressure head relative to the surface of the pressure plate, so that the degree of the pressure plate assembly pressing the adjusting rods is consistent, and the opening sizes of the adjusting openings are consistent or in the same proportion.

In addition, because the gas supply quantity required by each burner connected with each gas outlet on the gas fireplace is possibly different, the opening size of each adjusting opening can be different, and the synchronous adjustment of the flow of each adjusting opening is carried out according to a certain proportion or rule.

Further, the actuator and the push rod may be combined into a linear driving actuator, such as a proportional electromagnet, a linear driving motor, etc.

Further, when the pressure plate assembly moves up and down relative to the valve body, a guide device is arranged between the pressure plate and the valve body, for example, a guide support point can be arranged on the pressure plate and/or the valve body, or a guide rod is arranged to guide the pressure plate assembly to move up and down.

Further, the regulating port has a certain basic flow, i.e. when the regulating port is regulated to the minimum flow, the regulating port is not completely closed, i.e. the regulating port is set to have a minimum flow.

Further, when the regulation port is regulated to the minimum flow rate, the regulation port is completely closed, but a minimum flow rate port is provided between the air inlet and the air outlet in parallel with the regulation port, and the minimum flow rate from the air inlet to each of the air outlets is set by the minimum flow rate port.

Furthermore, a groove is formed in the valve body, the pressing plate assembly is embedded into the groove and installed, a pressing plate cover plate is further arranged outside the pressing plate assembly, and the pressing plate assembly is packaged inside the valve body through the pressing plate cover plate and the groove.

Further, an operation opening is formed in the pressure plate cover plate, and the relative height of the head surface of the adjusting rod pressure head relative to the surface of the pressure plate can be adjusted through the operation opening.

Furthermore, an operation cover is arranged on the operation opening, and the space where the pressing plate assembly is located is sealed by the operation cover.

Furthermore, the tail part of the adjusting rod pressure head is provided with a notch with a certain shape, such as an inner hexagon, a straight groove, a square groove and the like, and the adjusting can be operated by a certain tool.

Compared with the prior art, the invention has the advantages that: the two or more adjusting rods are driven by the actuator to move simultaneously, so that the outlet flow of the two or more adjusting ports can be synchronously adjusted at the same time, the flame heights of the burners of the gas fireplace product can be matched relatively and consistently at any time, the influence caused by machining errors of parts in the manufacturing process can be reduced, and the gas control valve is simple in structure and suitable for being used on the gas control valves of most of gas fireplaces with two or more burners.

Drawings

Fig. 1 is a schematic perspective view of embodiment 1 of the present invention.

Fig. 2 is a schematic sectional view of embodiment 1 of the present invention at a position where the flow rate is maximum.

Fig. 3 is a schematic sectional view of embodiment 1 of the present invention at a position where the flow rate is minimum.

Fig. 4 is a schematic sectional view of the position of the air inlet in embodiment 1 of the present invention.

Fig. 5 is an exploded view of embodiment 1 of the present invention.

Fig. 6 is a schematic diagram of the groove on the valve body and the pressing plate assembly in the embodiment 1 of the invention.

Fig. 7 is a schematic diagram of the matching of the groove on the valve body and the pressure plate assembly in embodiment 2 of the invention.

Fig. 8 is a schematic sectional view of embodiment 3 of the present invention at the position of maximum flow rate.

Fig. 9 is an exploded view of embodiment 3 of the present invention.

Fig. 10 is a schematic diagram of the engagement of the groove on the valve body and the pressure plate assembly in embodiment 3 of the present invention.

Fig. 11 is a schematic sectional view of embodiment 4 of the present invention at the position of maximum flow rate.

Fig. 12 is a schematic perspective view of embodiment 5 of the present invention.

FIG. 13 is a top view of example 5 of the present invention.

Figure 14 is a schematic cross-sectional view of example 5 of the present invention rotated in the position shown in figure 12.

Fig. 15 is a schematic view of the engagement of the groove on the valve body and the pressure plate assembly in embodiment 5 of the present invention.

Fig. 16 is a schematic sectional view of a valve body at a regulation port position in embodiment 5 of the invention.

Fig. 17 is a schematic sectional view of embodiment 6 of the present invention at the position of maximum flow rate.

Fig. 18 is a schematic perspective view of a platen assembly according to example 6 of the present invention.

Fig. 19 is an exploded view of embodiment 6 of the present invention.

The corresponding names of the components in the figure are as follows: 1-an actuator; 2-a push rod; 3-a platen assembly; 4-adjusting the rod; 5-a valve body; 6-a resetting device; 7-pressing plate cover plate; 11-an actuator output shaft; 12-a commutator; 31-a platen; 32-adjusting the rod ram; 33-a locking spring; 34-guide support point a; 35-adjusting the spring; 36-a guide rod; 37-a pilot hole; 38-a first balancing spring; 39-a second guide bar; 310-a first spherical bearing; 41-a conical head; 51-an air inlet; 52-outlet, 521-first outlet, 522-second outlet, 523-third outlet; 53-an adjustment port; 531-first regulating port, 532-second regulating port, 533-third regulating port and 54-minimum flow port; 541-a first minimum flow regulating port, 542-a second minimum flow regulating port, 543-a third minimum flow regulating port, 55-a groove; 56-guide support point B; 71-an operation port; 72-operating the cover; 73-adjusting screws; 74-a second balancing spring; 75-second spherical spring.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.