CN209818799U - Adjusting mechanism for adjusting flow of multiple outlets in gas valve - Google Patents
Adjusting mechanism for adjusting flow of multiple outlets in gas valve Download PDFInfo
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- CN209818799U CN209818799U CN201920539976.4U CN201920539976U CN209818799U CN 209818799 U CN209818799 U CN 209818799U CN 201920539976 U CN201920539976 U CN 201920539976U CN 209818799 U CN209818799 U CN 209818799U
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Abstract
The utility model discloses an adjustment mechanism for adjusting a plurality of export flows in gas valve, including actuator, push rod, clamp plate subassembly, regulation pole and valve body, have a plurality of gas outlets on the valve body, from the air inlet to every gas outlet between, need be provided with the regulation pole through an regulation mouth in each regulation mouth, be provided with resetting means between each regulation pole and valve body to each regulation mouth is around the push rod setting, and the actuator can drive the push rod and 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.
Description
Technical Field
The utility model relates to a two or more than two export flow adjustment mechanism, specifically speaking involve one kind be arranged in the gas valve be used for adjusting a plurality of export flow's adjustment mechanism.
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.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that an adjustment mechanism for adjusting a plurality of export flows in the gas valve is provided. The utility model discloses can be through a clamp plate subassembly of actuator drive for the flow of clamp plate subassembly synchronous adjustment through two or more than two gas outlets on the gas valve.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: 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 base flow, i.e. when the regulating port is regulated to a minimum flow, the regulating port is not completely closed, i.e. the regulating port is set to 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 utility model has the advantages of: 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 cross-sectional view of embodiment 1 of the present invention at a position where the flow rate is the largest.
Fig. 3 is a schematic cross-sectional view of embodiment 1 of the present invention at a position where the flow rate is minimum.
Fig. 4 is a schematic cross-sectional view of embodiment 1 of the present invention at the position of the air inlet.
Fig. 5 is an exploded schematic view of embodiment 1 of the present invention.
Fig. 6 is a schematic diagram of the groove and the pressing plate assembly on the valve body according to embodiment 1 of the present invention.
Fig. 7 is a schematic diagram of the groove on the valve body and the pressing plate assembly of the present invention in cooperation in embodiment 2.
Fig. 8 is a schematic cross-sectional view of embodiment 3 of the present invention at a position where the flow rate is maximum.
Fig. 9 is an exploded schematic view of embodiment 3 of the present invention.
Fig. 10 is a schematic view of the groove on the valve body and the pressing plate assembly according to embodiment 3 of the present invention.
Fig. 11 is a schematic cross-sectional view of embodiment 4 of the present invention at a position where the flow rate is maximum.
Fig. 12 is a schematic perspective view of embodiment 5 of the present invention.
Fig. 13 is a plan view of embodiment 5 of the present invention.
Fig. 14 is a schematic cross-sectional view of embodiment 5 of the present invention in a rotated state at the position shown in fig. 12.
Fig. 15 is a schematic view of the groove on the valve body and the pressing plate assembly of the present invention.
Fig. 16 is a schematic sectional view of a valve body at a position of an adjusting opening according to embodiment 5 of the present invention.
Fig. 17 is a schematic cross-sectional view of embodiment 6 of the present invention at a position where the flow rate is maximum.
Fig. 18 is a schematic perspective view of a platen assembly according to embodiment 6 of the present invention.
Fig. 19 is an exploded schematic 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 the embodiments of the present invention is provided with reference to 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.
Example 1
As shown in fig. 1 to 6, an adjusting mechanism for adjusting a plurality of outlet flows in a gas valve includes an actuator 1, a push rod 2, a pressure plate assembly 3, an adjusting rod 4, and a valve body 5. In the embodiment 1, the actuator 1 is a motor driven to rotate, the valve body 5 is provided with an air inlet 51 and two or more air outlets, in the embodiment 1, the valve body is provided with two air outlets, namely a first air outlet 521 and a second air outlet 521, and is provided with a first regulation port 531 from the air inlet 51 to the first air outlet 521 and a second regulation port 532 from the air inlet 51 to the second air outlet 522; the adjusting rods 4 are respectively arranged on the axial lines of the first adjusting port 531 and the second adjusting port 532, the diameter of the head of each adjusting rod 4 is larger than the diameter of the opening of the first adjusting port 531 and the second adjusting port 532, the reset device 6 is arranged between each adjusting rod 4 and the valve body 5, in the embodiment 1, the reset device 6 is a compression spring arranged between each adjusting rod 4 and the corresponding first adjusting port 531 and the corresponding second adjusting port 532, the first adjusting port 531 and the second adjusting port 532 are arranged around the push rod 2, the output shaft 11 of the actuator 1 and the push rod 2 are arranged on the same axial line, the output shaft 11 is connected with the push rod 2 through the commutator 12, the pressure plate assembly 3 comprises a pressure plate 31 and is arranged at the tail part of the adjusting rod 4, the tail part of each adjusting rod 4 is spherical, and in the embodiment 1, the push rod 2 is fixedly connected with the pressure plate 31. In this embodiment 1, the position of the pressing plate assembly 3 corresponding to the adjusting rod 4 is provided with an adjusting device, the adjusting device includes an adjusting rod pressing head 32, the head surface of the adjusting rod pressing head 32 presses on the tail portion of the adjusting rod 4, and the tail portion of the adjusting rod pressing head 32 is an inner hexagonal groove. The adjusting rod pressure head 32 is in threaded connection with the pressure plate 31, and a locking spring 33 is arranged between the adjusting rod pressure head 32 and the pressure plate 31.
A first minimum flow rate port 541 is provided between the intake port 51 and the first outlet port 521 in parallel with the first regulation port 531, and a second minimum flow rate port 542 is provided between the intake port 51 and the second outlet port 522 in parallel with the second regulation port 532.
The valve body 5 is provided with a groove 55, the pressure plate is arranged in the groove 55, the pressure plate assembly 3 is also provided with a pressure plate cover plate 7 outside, the pressure plate cover plate 7 is provided with an operation opening 71, the operation opening 71 is internally provided with an operation cover 72, and the operation cover 72 is arranged in the operation opening 71.
During operation, the output shaft 11 of the actuator 1 rotates, the push rod 2 is driven to move upwards through the commutator 12, and then the push rod 2 pushes the pressing plate assembly 3 to move upwards, and the pressing plate assembly 3 moves upwards, so that the adjusting rod 4 moves upwards under the action of the resetting device 6, and the size of a channel opening formed by the head of the adjusting rod 4 and the first adjusting port 531 and the second adjusting port 532 is reduced, and the size of the air outlet flow of the first air outlet 521 and the second air outlet 522 is reduced through synchronous adjustment.
If the flow regulation is increased, the output shaft 11 of the actuator 1 rotates reversely, the push rod 2 is driven to move downwards through the commutator 12, the push rod 2 is fixedly connected with the pressing plate 31, the pressing plate assembly 3 is further driven to move downwards, and the pressing adjusting rod 4 moves downwards together due to the downward movement of the pressing plate assembly 3, so that the size of a channel opening formed by the head of the adjusting rod 4, the first regulating port 531 and the second regulating port 532 is enlarged, and the size of the air outlet flow of the first air outlet 521 and the second air outlet 522 is increased through synchronous regulation.
The gas from each gas outlet 52 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 switch device can realize the independent gas supply of each gas outlet to each burner on the gas fireplace and realize the matching adjustment of fire and fire.
Due to the arrangement of the first minimum flow port 541 and the second minimum flow port 542, when the flow rate is adjusted by the adjusting mechanism of the present embodiment, the minimum value of the flow rate from the first air outlet 521 is the flow rate through the first minimum flow port 541, and the minimum value of the flow rate from the second air outlet 522 is the flow rate through the second minimum flow port 542.
In addition, because there is machining error in the manufacturing process of adjusting pole 4, can cause the degree that clamp plate subassembly 3 oppresses adjusting pole 4 to be inconsistent, can take off operation lid 72 from operation mouth 71, rotate regulation pole pressure head 32 through a instrument such as allen key to the relative height of the head surface of adjustment pole pressure head 32 for the surface of clamp plate 31, in order to compensate the preparation error of adjusting pole 4, make the degree that clamp plate subassembly 3 oppresses adjusting pole 4 unanimous, thereby make the opening size of first regulation mouth 531 and second regulation mouth 532 unanimous or same proportion. And due to the arrangement of the locking spring 33, the adjusting rod press head 32 can be locked after the height is adjusted, and the adjusting rod press head 32 is not loosened due to the threaded connection between the adjusting rod press head 32 and the press plate 31.
The pressure plate 31 is also provided with a guide supporting point A34, and the pressure plate assembly 3 can be prevented from rotating and skewing by the positioning guide between the guide supporting point A34 and the side wall of the groove 55 of the valve body 5 in the process that the push rod 2 drives the pressure plate assembly 3 to move up and down.
Example 2
As shown in fig. 7, in the present embodiment 2, based on embodiment 1, a guide supporting point a34 on the pressure plate 31 is eliminated, instead, a guide supporting point B56 is provided on the inner side wall of the groove 55 of the valve body 5, and during the process that the push rod 2 drives the pressure plate assembly 3 to move up and down, the positioning guide between the guide supporting point B56 and the side edge of the pressure plate 31 can prevent the pressure plate assembly 3 from rotating and skewing.
Example 3
As shown in fig. 8 to 10, an adjusting mechanism for adjusting a plurality of outlet flows in a gas valve includes an actuator 1, a push rod 2, a pressure plate assembly 3, an adjusting rod 4, and a valve body 5. In the present embodiment 3, the actuator 1 is a motor driven to rotate, the valve body 5 is provided with an air inlet 51 and two or more air outlets, and in the present embodiment 3, the valve body is provided with two air outlets, namely a first air outlet 521 and a second air outlet 522, and is provided with a first regulation port 531 from the air inlet 51 to the first air outlet 521 and a second regulation port 532 from the air inlet 51 to the second air outlet 522; the adjusting rods 4 are respectively arranged on the axes of the first adjusting port 531 and the second adjusting port 532, the diameter of the head of the adjusting rod 4 is larger than the opening diameter of the first adjusting port 531 and the second adjusting port 532, and the head of the adjusting rod 4 is provided with the tapered head 41, in the embodiment 3, the tapered head 41 of the adjusting rod 4 is a rubber gasket sleeved on the head of the adjusting rod 4, the reset device 6 is arranged between each adjusting rod 4 and the valve body 5, in the embodiment 3, the reset device 6 is a compression spring arranged between the adjusting rod 4 and the first adjusting port 531 and the second adjusting port 532, the first adjusting port 531 and the second adjusting port 532 are symmetrically arranged around the push rod 2, the output shaft 11 of the actuator 1 and the push rod 2 are arranged on the same axis, and the output shaft 11 is connected with the push rod 2 through the commutator 12, the pressure plate assembly 3 comprises a pressure plate 31, the adjusting device is arranged at the tail part of the adjusting rod 4, the tail part of the adjusting rod 4 is spherical, in the embodiment 3, the push rod 2 is in contact connection with the pressure plate assembly 3, the push rod 2 is located on the same side of the adjusting rod 4 relative to the pressure plate assembly 3, the adjusting spring 35 is arranged on the other side of the pressure plate assembly 3 relative to the push rod 2, the adjusting spring 35 is in a pre-compression state, and the pre-compression force of the adjusting spring 35 is far greater than the pre-compression force resultant force of all the resetting devices 6. In this embodiment 3, the position of the pressing plate assembly 3 corresponding to the adjusting rod 4 is provided with an adjusting device, the adjusting device includes an adjusting rod pressing head 32, the head surface of the adjusting rod pressing head 32 presses on the tail portion of the adjusting rod 4, and the tail portion of the adjusting rod pressing head 32 is an inner hexagonal groove. The adjusting rod pressure head 32 is in threaded connection with the pressure plate 31, and a locking spring 33 is arranged between the adjusting rod pressure head 32 and the pressure plate 31.
A first minimum flow rate port 541 is provided between the intake port 51 and the first outlet port 521 in parallel with the first regulation port 531, and a second minimum flow rate port 542 is provided between the intake port 51 and the second outlet port 522 in parallel with the second regulation port 532.
The valve body 5 is provided with a groove 55, the pressure plate is arranged in the groove 55, the pressure plate 3 is also provided with a pressure plate cover plate 7 outside, the pressure plate cover plate 7 is provided with an operation opening 71, an operation cover 72 is arranged in the operation opening 71, and the operation cover 72 is arranged in the operation opening 71.
During operation, the output shaft 11 of the actuator 1 rotates, the push rod 2 is driven to move upwards through the commutator 12, and then the push rod 2 pushes the pressing plate assembly 3 to move upwards, and the pressing plate assembly 3 moves upwards, so that the adjusting rod 4 moves upwards under the action of the resetting device 6, and the size of a channel opening formed by the conical head 41 of the adjusting rod 4, the first adjusting port 531 and the second adjusting port 532 is reduced, and the size of the air outlet flow of the first air outlet 521 and the second air outlet 522 is reduced through synchronous adjustment.
If the flow rate is required to be adjusted and increased, the output shaft 11 of the actuator 1 is rotated reversely, the push rod 2 is driven to move downwards through the commutator 12, and the precompression force of the adjusting spring 35 is far greater than the precompression force resultant force of all the resetting devices 6, so that the pressure plate assembly 3 is pressed to move downwards under the action of the adjusting spring 35, the adjusting rod 4 is driven to move downwards together, the size of the opening of the channel formed by the conical head 41 of the adjusting rod 4, the first adjusting port 531 and the second adjusting port 532 is enlarged, and the size of the air outlet flow rate of the first air outlet 521 and the second air outlet 522 is also enlarged through synchronous adjustment.
The gas from each gas outlet 52 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 switch device can realize the independent gas supply of each gas outlet to each burner on the gas fireplace and realize the matching adjustment of fire and fire.
Due to the arrangement of the first minimum flow port 541 and the second minimum flow port 542, when the flow rate is adjusted by the adjusting mechanism of the present embodiment, the minimum value of the flow rate from the first air outlet 521 is the flow rate through the first minimum flow port 541, and the minimum value of the flow rate from the second air outlet 522 is the flow rate through the second minimum flow port 542.
In addition, because there is machining error in the manufacturing process of adjusting pole 4, can cause the degree that clamp plate subassembly 3 oppresses adjusting pole 4 to be inconsistent, can take off operation lid 72 from operation mouth 71, rotate regulation pole pressure head 32 through a instrument such as allen key to the relative height of the head surface of adjustment pole pressure head 32 for the surface of clamp plate 31, in order to compensate the preparation error of adjusting pole 4, make the degree that clamp plate subassembly 3 oppresses adjusting pole 4 unanimous, thereby make the opening size of first regulation mouth 531 and second regulation mouth 532 unanimous or same proportion. And due to the arrangement of the locking spring 33, the adjusting rod press head 32 can be locked after the height is adjusted, and the adjusting rod press head 32 is not loosened due to the threaded connection between the adjusting rod press head 32 and the press plate 31.
The pressure plate assembly 3 is also provided with a guide rod 36 and a guide hole 37, the guide rod 36 passes through the guide hole 37 and is fixed on the valve body 5, and in the process that the push rod 2 drives the pressure plate 3 to move up and down, the pressure plate assembly 3 can be prevented from rotating and skewing due to the positioning and guiding of the guide rod 36.
Example 4
As shown in fig. 11, in an adjusting mechanism for adjusting a plurality of outlet flow rates in a gas valve, in embodiment 4, compared with embodiment 3, a reset device 6 arranged between each adjusting rod 4 and a valve body 5 is positioned below a first adjusting port 531 and a second adjusting port 532, i.e. the reset device 6 is arranged between a conical head 41 and the valve body 5.
Example 5
As shown in fig. 12 to 16, two or more outlet flow rate adjusting mechanisms of a gas valve include an actuator 1, a push rod 2, a pressure plate assembly 3, an adjusting rod 4, and a valve body 5. In this embodiment 5, the actuator 1 is a linear-driven proportional electromagnet, the actuator 1 and the push rod 2 are integrated, the valve body 5 is provided with an air inlet 51 and two or more air outlets, in this embodiment 5, the valve body is provided with three air outlets, namely, a first air outlet 521, a second air outlet 522 and a third air outlet 523, and is provided with a first regulation port 531 from the air inlet 51 to the first air outlet 521, a second regulation port 532 from the air inlet 51 to the second air outlet 522, and a third regulation port 533 from the air inlet 51 to the third air outlet 523; adjusting rods 4 are respectively arranged on the axes of the first adjusting opening 531, the second adjusting opening 532 and the third adjusting opening 533, the diameter of the head of each adjusting rod 4 is larger than the opening diameters of the first adjusting opening 531, the second adjusting opening 532 and the third adjusting opening 533, and the head of each adjusting rod 4 is provided with a tapered head 41, in the embodiment 5, the tapered head 41 of each adjusting rod 4 is a rubber gasket sleeved on the head of the adjusting rod 4, a reset device 6 is arranged between each adjusting rod 4 and the valve body 5, in the embodiment 5, the reset device 6 is a compression spring arranged between each adjusting rod 4 and the first adjusting opening 531, the second adjusting opening 532 and the third adjusting opening 533, the first adjusting opening 531, the second adjusting opening 532 and the third adjusting opening 533 are symmetrically arranged around the push rod 2, the actuator 1 directly drives the push rod 2 to linearly move and is arranged on the other side of the pressing plate assembly 3 relative to the adjusting rods 4, the pressing plate assembly 3 includes a pressing plate 31 and is disposed at the tail of the adjusting rod 4, the tail of the adjusting rod 4 is spherical, and in this embodiment 5, the push rod 2 is in contact connection with the pressing plate assembly 3. In this embodiment 5, the pressure plate assembly 3 is provided with an adjusting device at a position corresponding to the adjusting rod 4, the adjusting device includes an adjusting rod pressure head 32, the head surface of the adjusting rod pressure head 32 presses on the tail of the adjusting rod 4, and the tail of the adjusting rod pressure head 32 is a straight groove. The adjusting rod pressure head 32 is in threaded connection with the pressure plate 31, and a locking spring 33 is arranged between the adjusting rod pressure head 32 and the pressure plate 31.
A first minimum flow rate port 541 is provided between the intake port 51 and the first outlet port 521 in parallel with the first regulation port 531, a second minimum flow rate 542 is provided between the intake port 51 and the second outlet port 522 in parallel with the second regulation port 532, and a third minimum flow rate port 543 is provided between the intake port 51 and the third outlet port 523 in parallel with the third regulation port 533.
The valve body 5 is provided with a groove 55, the pressure plate is arranged in the groove 55, the pressure plate 3 is also provided with a pressure plate cover plate 7 outside, the pressure plate cover plate 7 is provided with an operation opening 71, an operation cover 72 is arranged in the operation opening 71, and the operation cover 72 is arranged in the operation opening 71.
During operation, the actuator 1 drives the push rod 2 to move upwards, and then the push rod 2 pushes the pressing plate assembly 3 to move upwards, and as the pressing plate assembly 3 moves upwards, the adjusting rod 4 is caused to move upwards under the action of the resetting device 6, so that the size of a channel opening formed by the conical head 41 of the adjusting rod 4 and the first adjusting port 531, the second adjusting port 532 and the third adjusting port 533 is reduced, and the size of the air outlet flow of the first air outlet 521, the second air outlet 522 and the third air outlet 523 is reduced through synchronous adjustment.
If the flow rate adjustment is required to be increased, the actuator 1 is enabled to reversely drive the push rod 2 to move downwards, so that the pressure plate assembly 3 is pressed to move downwards, and the adjusting rod 4 is further enabled to compress the resetting device 6 to move downwards together, so that the size of the opening of the channel formed by the conical head 41 of the adjusting rod 4 and the first adjusting port 531, the second adjusting port 532 and the third adjusting port 533 is enlarged, and the size of the outlet flow rate of the first air outlet 521, the second air outlet 522 and the third air outlet 523 is also synchronously adjusted and increased.
The gas from each gas outlet 52 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 switch device can realize the independent gas supply of each gas outlet to each burner on the gas fireplace and realize the matching adjustment of fire and fire.
Due to the arrangement of the first minimum flow port 541, the second minimum flow port 542, and the third minimum flow port 543, when the flow rate is adjusted by the adjustment mechanism of the present embodiment, the minimum value of the flow rate from the first air outlet 521 is the flow rate passing through the first minimum flow port 541, the minimum value of the flow rate from the second air outlet 522 is the flow rate passing through the second minimum flow port 542, and the minimum value of the flow rate from the third air outlet 523 is the flow rate passing through the third minimum flow port 543.
In addition, because there is machining error in the manufacturing process of the adjusting rod 4, the degree that the pressing plate assembly 3 presses the adjusting rod 4 is inconsistent, the operating cover 72 can be taken down from the operating opening 71, the adjusting rod pressing head 32 is rotated by a tool such as a straight screwdriver, and the like, so that the relative height of the head surface of the adjusting rod pressing head 32 relative to the surface of the pressing plate 31 is adjusted, the manufacturing error of the adjusting rod 4 is compensated, the degree that the pressing plate assembly 3 presses the adjusting rod 4 is consistent, and the sizes of the openings of the first adjusting opening 531, the second adjusting opening 32 and the third adjusting opening 533 are consistent or in the same proportion. And due to the arrangement of the locking spring 33, the adjusting rod press head 32 can be locked after the height is adjusted, and the adjusting rod press head 32 is not loosened due to the threaded connection between the adjusting rod press head 32 and the press plate 31.
The pressure plate assembly 3 is also provided with a guide rod 36 and a guide hole 37, the guide rod 36 passes through the guide hole 37 and is fixed on the valve body 5, and in the process that the push rod 2 drives the pressure plate 3 to move up and down, the pressure plate assembly 3 can be prevented from rotating and skewing due to the positioning and guiding of the guide rod 36.
Example 6
As shown in fig. 17 to 19, an adjusting mechanism for adjusting a plurality of outlet flows in a gas valve includes an actuator 1, a push rod 2, a pressure plate assembly 3, an adjusting rod 4, and a valve body 5. In the embodiment 6, the actuator 1 is a motor driven to rotate, the valve body 5 is provided with an air inlet 51 and two or more air outlets, in the embodiment 6, the valve body is provided with two air outlets, namely two air outlets of a first air outlet 521 and a second air outlet 522, and is provided with a first regulation port 531 from the air inlet 51 to the first air outlet 521 and a second regulation port 532 from the air inlet 51 to the second air outlet 522; adjusting rods 4 are respectively arranged on the axes of the first adjusting port 531 and the second adjusting port 532, the diameter of the head of each adjusting rod 4 is larger than the opening diameter of the first adjusting port 531 and the second adjusting port 532, and the head of each adjusting rod 4 is provided with a conical head 41, in the embodiment 6, the conical head 41 of each adjusting rod 4 is a rubber gasket sleeved on the head of the adjusting rod 4, a reset device 6 is arranged between each adjusting rod 4 and the first adjusting port 531, the second adjusting port 532, in the embodiment 6, the reset device 6 is a compression spring arranged between the adjusting rod 4 and the first adjusting port 531, the second adjusting port 532, the first adjusting port 531 and the second adjusting port 532 are symmetrically arranged around the push rod 2, the output shaft 11 of the actuator 1 and the push rod 2 are arranged on the same axis, the output shaft 11 is connected with the push rod 2 through a commutator 12, the pressure plate assembly 3 comprises a pressure plate 31, and is arranged at the tail part of the adjusting rod 4, in this embodiment 6, the push rod 2 is in contact connection with the platen assembly 3, and the push rod 2 is located at the same side of the adjusting rod 4 relative to the platen assembly 3. In this embodiment 6, a position of the pressing plate assembly 3 corresponding to the adjusting rod 4 is provided with an adjusting device, the adjusting device includes an adjusting rod pressing head 32, a head surface of the adjusting rod pressing head 32 presses on a tail portion of the adjusting rod 4, the tail portion of the adjusting rod 4 is spherical, a first balance spring 38 is disposed between the adjusting rod pressing head 32 and the pressing plate 31, the pressing plate assembly 3 is further provided with a second guide rod 39, the second guide rod 39 is connected with the pressing plate through a first spherical bearing 310, a groove 55 is disposed on the valve body 5, the pressing plate assembly 3 is disposed in the groove 55, a pressing plate cover plate 7 is further disposed outside the pressing plate 3, an operation port 71 is disposed on the pressing plate cover plate 7, an adjusting screw 73 is disposed in the operation port 71, a tail portion of the adjusting screw 73 is a straight groove, and a second balance spring 74 is disposed between. The pressure plate cover plate 7 is also provided with a second spherical bearing 75, and the tail part of the second guide rod 39 is inserted into the inner hole of the second spherical bearing 75.
In the present embodiment 6, the elastic forces of the first balance spring 38 and the second balance spring 74 are equal, the stiffness of the second balance spring 74 is 1 to 10 times that of the first balance spring 38, and the elastic force of the second balance spring 74 is much larger than that of the return device 6.
A first minimum flow rate port 541 is provided between the intake port 51 and the first outlet port 521 in parallel with the first regulation port 531, and a second minimum flow rate port 542 is provided between the intake port 51 and the second outlet port 522 in parallel with the second regulation port 532.
During operation, the output shaft 11 of the actuator 1 rotates, the push rod 2 is driven to move upwards through the commutator 12, and then the push rod 2 pushes the pressing plate assembly 3 to move upwards, so as to compress the first balance spring 38 and the second balance spring 74, and as the pressing plate assembly 3 moves upwards, the adjusting rod 4 moves upwards under the action of the resetting device 6, so that the size of a channel opening formed by the conical head 41 of the adjusting rod 4, the first adjusting port 531 and the second adjusting port 532 is reduced, and the size of the air outlet flow of the first air outlet 521 and the second air outlet 522 is reduced through synchronous adjustment.
If the flow adjustment is required to be increased, the output shaft 11 of the actuator 1 is rotated reversely, the push rod 2 is driven to move downwards through the commutator 12, the elastic force of the second balance spring 74 is far greater than that of the reset device 6, and then the pressure plate assembly 3 is pressed to move downwards under the action of the second balance spring 74, the reset device 6 is compressed, the adjusting rod 4 is driven to move downwards together, so that the size of a channel opening formed by the conical head 41 of the adjusting rod 4, the first adjusting port 531 and the second adjusting port 532 is enlarged, and the size of the outlet flow of the first air outlet 521 and the second air outlet 522 is also enlarged through synchronous adjustment.
The gas from each gas outlet 52 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 switch device can realize the independent gas supply of each gas outlet to each burner on the gas fireplace and realize the matching adjustment of fire and fire.
Due to the arrangement of the first minimum flow port 541 and the second minimum flow port 542, when the flow rate is adjusted by the adjusting mechanism of the present embodiment, the minimum value of the flow rate from the first air outlet 521 is the flow rate through the first minimum flow port 541, and the minimum value of the flow rate from the second air outlet 522 is the flow rate through the second minimum flow port 542.
In addition, because there is machining error in the manufacturing process of the adjusting rod 4, the degree that the pressing plate assembly 3 presses the adjusting rod 4 is inconsistent, the adjusting rod pressure head 32 can be rotated by a tool such as a straight screwdriver, the precompression amount of the first balance spring 38 and the second balance spring 74 is adjusted, so that the relative height of the head surface of the adjusting rod pressure head 32 relative to the surface of the pressing plate 31 is adjusted, the manufacturing error of the adjusting rod 4 is compensated, the degree that the pressing plate assembly 3 presses the adjusting rod 4 is consistent, and the sizes of the openings of the first adjusting opening 531 and the second adjusting opening 532 are consistent or in the same proportion.
The first spherical bearing 310 and the second spherical bearing 75 are arranged to avoid the second guide rod 39 from being locked due to the deflection of the central holes of the pressure plate 31 and the pressure plate cover plate 7.
The pressure plate assembly 3 is also provided with a guide rod 36 and a guide hole 37, the guide rod 36 passes through the guide hole 37 and is fixed on the valve body 5, and in the process that the push rod 2 drives the pressure plate 3 to move up and down, the pressure plate assembly 3 can be prevented from rotating and skewing due to the positioning and guiding of the guide rod 36.
As described above, the above embodiments are not limiting embodiments of the present invention, and modifications or equivalent variations made by those skilled in the art based on the substance of the present invention are within the technical scope of the present invention.
Claims (15)
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 opening is 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 3, 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 basic flow, that is, when the regulating port is regulated to a minimum flow, the regulating port is not completely closed, that is, the regulating port is set to have a 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).
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920539976.4U CN209818799U (en) | 2019-04-19 | 2019-04-19 | Adjusting mechanism for adjusting flow of multiple outlets in gas valve |
| PL19197973T PL3726138T3 (en) | 2019-04-19 | 2019-09-18 | Regulating mechanism for regulating the flows from a plurality of gas outlets in a fuel gas valve |
| ES19197973T ES2907079T3 (en) | 2019-04-19 | 2019-09-18 | Regulating mechanism for regulating the flows of a plurality of gas outlets in a fuel gas valve |
| EP19197973.1A EP3726138B1 (en) | 2019-04-19 | 2019-09-18 | Regulating mechanism for regulating the flows from a plurality of gas outlets in a fuel gas valve |
| US16/585,244 US11280497B2 (en) | 2019-04-19 | 2019-09-27 | Regulating mechanism for regulating the flows from a plurality of gas outlets in a fuel gas valve |
| US17/592,116 US11719443B2 (en) | 2019-04-19 | 2022-02-03 | Regulating mechanism for regulating the flows from a plurality of gas outlets in a fuel gas valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920539976.4U CN209818799U (en) | 2019-04-19 | 2019-04-19 | Adjusting mechanism for adjusting flow of multiple outlets in gas valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209818799U true CN209818799U (en) | 2019-12-20 |
Family
ID=68880756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920539976.4U Active CN209818799U (en) | 2019-04-19 | 2019-04-19 | Adjusting mechanism for adjusting flow of multiple outlets in gas valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209818799U (en) |
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2019
- 2019-04-19 CN CN201920539976.4U patent/CN209818799U/en active Active
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