CN207634710U - The screw-down valve of shaking can be reduced - Google Patents

Abstract

A kind of screw-down valve reducing shaking, the screw-down valve includes the valve seat of a room with an at least inlet channel, an exhaust passage and the connection inlet channel and the exhaust passage, at least one is set to the indoor valve body of the appearance, one is set to outside the valve seat to drive the valve body in the driving unit for forming an air-suction state and an only gaseity in the valve seat, and at least one is fixed on fixed cell outside the valve seat to the driving unit.Wherein, an at least fixed link is extended with outside the valve seat, and an end of the fixed link has one first positioning region, the second positioning region being mutually embedded with first positioning region at least one on the driving unit, the driving unit to be fixed in the fixed link by second positioning region using the fixed cell.

Description

The screw-down valve of shaking can be reduced

Technical field

The utility model is related to a kind of screw-down valves reducing shaking more particularly to a kind of installation more accurately to prevent from shaking Screw-down valve dynamic and that angular force can be mitigated.

Background technology

Screw-down valve is largely to drive a screw rod to control the start of a valve by stepping motors, can be more smart The start of accurate control valve.

Screw-down valve is applied mostly in water heater, to provide relatively stable hot water supply.Such as China's bulletin the 201016399Y new patent cases, exposure is a kind of with the gas flow control valve automatically replied, is installed in control gas stream On the valve body of amount, with control gas burner gas output, which includes a magnet body, one and the magnet body The driving screw and one screwed togather is arranged on the guide rod body and provides the magnet body and the elastic parts of the driving screw elastic force, By the screw-in version of specific guide rail, the magnet body and the driving screw is set mutually to screw togather and formed should with automatically reply function Flow control valve, by the control of the flow control valve, to adjust the gas output of the gas valve so that no matter the driving screw is located at Any open position all can automatically be returned to closed position.

The aforementioned Patent Case be mainly sleeve by the magnet body, the driving screw, the elastic parts be sequentially installed on it is interior after, The casing is mounted on a valve body again, so that the driving screw is controlled an a regulating the qi flowing in the channels valve plug pair outlet sluice gate in the valve body and carries out Bottom offset, and an open position and a closed position are formed, and then the gas is controlled in the flow by the outlet sluice gate.

The aforementioned Patent Case, after the magnet body, the driving screw, the elastic parts are sequentially installed on the casing, and can not Confirm whether the magnet body, the driving screw, the elastic parts are installed correctly or whether had during the installation process and generates showing for deflection As.If the phenomenon that generating deflection after installation process is not correctly installed or installed, all it be easy to cause to the flow control valve Injury and influence the precision of flow control, and can substantially shorten the service life of the flow control valve.

In addition, the end that the aforementioned driving screw extends in the casing is a flat surface, when the driving screw is towards the casing When bottom moves, if failing to control the move distance of the driving screw, it be easy to cause end and the sleeve bottom of the driving screw Friction is generated, since the end of the driving screw is plane, and the sleeve bottom is also in plane, thus the driving screw end can be with this Aspectant contact is presented in sleeve bottom, and generates larger deviation frictional force, similarly can also shorten the flow control valve Service life.

Utility model content

The main purpose of the utility model is to provide a kind of screw-down valve reducing shaking, subject to espespecially a kind of installation more Really to prevent from shaking and capable of mitigating the screw-down valve of axial force.

In order to achieve the above object, the utility model provides a kind of screw-down valve reducing shaking, which includes：

One valve seat, has an at least inlet channel, at least an exhaust passage and at least one connection inlet channel and is somebody's turn to do The room of exhaust passage, and an at least fixed link is extended with outside the valve seat, an end of the fixed link has one first positioning Portion；

An at least valve body, installation are set to the room, obstruct between the inlet channel and the exhaust passage, have one to make this Inlet channel makes the inlet channel and the exhaust passage shape with one interconnected air-suction state of exhaust passage formation and one The only gaseity mutually obstructed at one；

One driving unit has at least one and is somebody's turn to do outside the valve seat and to drive the valve body, on the driving unit The second positioning region that first positioning region is mutually embedded and the driving unit is made to be located in the fixed link；And

An at least fixed cell, the driving unit to be fixed in the fixed link, so that the driving unit is in the valve Seat is external to drive the valve body in the switching for carrying out the air-suction state in the valve seat with being somebody's turn to do only gaseity.

The above-mentioned screw-down valve for reducing shaking, wherein first positioning region are further convexly equipped in for one outside the fixed link Protrusion, second positioning region further be a limit hole, so that first positioning region is extended in second positioning region.

The above-mentioned screw-down valve for reducing shaking, wherein an outer diameter of first positioning region are less than the one of second positioning region Outer diameter.

The above-mentioned screw-down valve for reducing shaking, wherein end face of the fixed link further more from first positioning region are recessed Equipped with a mounting hole, the fixed cell is made to be extended in the mounting hole by second positioning region.

The above-mentioned screw-down valve for reducing shaking, the wherein fixed cell have further further included one and have extended to the mounting hole Interior fixed part and one is located at the positioning region on the outside of second positioning region from fixed part extension, and outside the one of the positioning region Diameter is more than the outer diameter of second positioning region.

The above-mentioned screw-down valve for reducing shaking, the wherein valve body further further include one and driving unit gearing One screw sleeve, one to the screw sleeve is fixed on the valve seat a guide sleeve, one between the screw sleeve and the guide sleeve it Between rolling element, one interlocked with the screw sleeve and by the guide sleeve and extend a screw rod of the compartment and one set It is connect in the first end with the screw rod in the room and to the stop part of the backstop inlet channel.

The above-mentioned screw-down valve for reducing shaking, the wherein rolling element are further a ball bearing.

The above-mentioned screw-down valve for reducing shaking, the wherein screw rod are relative to connecting the first end of the stop part It is formed with a second end, which extends in the screw sleeve, and the second end is further an arc-shaped.

It is further more provided with a bullet between the above-mentioned screw-down valve for reducing shaking, the wherein stop part and the screw sleeve Property element.

The above-mentioned screw-down valve for reducing shaking, the wherein stop part are further to utilize a bolting element and the screw rod phase It connects.

The utility model is by above-mentioned technology contents, compared to the prior art, has the characteristics that：

1. the utility model is mutually embedded by first positioning region and second positioning region, enable the driving unit It is more accurately fixed on the valve seat, and then simplifies structure, convenient for assembling.

2. the utility model is provided with rolling element using the guide sleeve and the screw rod inner room, the driving can be effectively prevent The shaking that unit generates in the process in driving, to promote the service life of the driving unit.

3. it is an arc-shaped that the screw rod, which extends one end of screw sleeve, in the utility model, touched when the screw rod operates When to the driving unit, the contact surface is set to become point-to-area contact from original face-to-face contact, so as to reduce the inclined of generation To frictional force.

The utility model is described in detail below in conjunction with the drawings and specific embodiments, but not as to the utility model Restriction.

Description of the drawings

Fig. 1 is the decomposition diagram at the first visual angle of the utility model；

Fig. 2 is the decomposition diagram at the second visual angle of the utility model；

Fig. 3 is the schematic cross-sectional view of the utility model driving unit stationary state；

Fig. 4 is that the utility model stops the schematic cross-sectional view under gaseity；

Fig. 5 is the schematic cross-sectional view under the utility model air-suction state.

Fig. 6 is the schematic cross-sectional view of another state sample implementation；

Fig. 7 is the decomposition diagram at the first visual angle of another state sample implementation；

Fig. 8 is the decomposition diagram at the second visual angle of Fig. 7 state sample implementations；

Fig. 9 is the decomposition diagram of another state sample implementation；

Figure 10 is the schematic cross-sectional view of Fig. 9 state sample implementations.

Specific implementation mode

The detailed description of the utility model and technology contents, cooperation description of the drawings are as follows：

As shown in Figures 1 to 4, the utility model provides a kind of screw-down valve reducing shaking, which includes one Valve seat 20, at least a valve body 30, a driving unit 40 and an at least fixed cell 50.As shown in the figure, in the utility model Be with a charge valve be main state sample implementation, and have two interconnected valve seats 20, each valve seat 20 have two points The exhaust outlet 201 and one connect with an object to be inflatable (figure do not indicate) is connecting the air inlet of an air pump (scheming not indicate) 202。

There is at least one exhaust passage 21, one being connect with the exhaust outlet 201 to connect with the air inlet 202 for 20 inside of valve seat The inlet channel 22 connect and one at least one room 23 that is connected to the exhaust passage 21 and the inlet channel 22, with using should Air pump introduces a gas in the inlet channel 22, then is inflated to the object to be inflatable via the exhaust passage 21.And it should The outside of valve seat 20 is provided with an at least fixed link 24, and in the present embodiment, each valve seat 20 corresponds to the driving unit 40 Two fixed links 24 are provided with, the end of each fixed link 24 has one first positioning region 241, which is One is convexly equipped in the protrusion outside the fixed link 24, and the end face of each fixed link 24 from first positioning region 241 is recessed There is a mounting hole 242.

The valve body 30 is set in the room 23, and including a screw sleeve 31, one extended to outside the valve seat 20 will The screw sleeve 31 is fixed on rolling member of the guide sleeve 32, one on the valve seat 20 between the screw sleeve 31 and the guide sleeve 32 Part 33, one extends the screw rod 34, one inside the room 23 by guide sleeve 32 from inside the screw sleeve 31 and is set to the appearance It is connect with a wherein end for the screw rod 34 in room 23 and to the stop part 35 and one of the backstop inlet channel 22 in the appearance The elastic element 36 being set in room 23 between the stop part 35 and the guide sleeve 32.The rolling element 33 is one in the present embodiment Ball bearing can make enough to make the screw sleeve 31 in keeping good rotating effect, and 36 energy of elastic element on the guide sleeve 32 The stop part 35 is enough set closely to be bonded and close the inlet channel 22.The stop part 35 is then using a bolting element 37 and to be somebody's turn to do Screw rod 34 is connected with each other and fixes, by the bolting element 37, to enable the stop part 35 adjust the height on the screw rod 34 Degree.In addition, the screw sleeve 31, which extends one end outside the valve seat 20, has a limiting slot 311.The screw rod 34 has one to extend It is set with the 31 mutual spiral shell of screw sleeve in the first end 341 and one for connecting the stop part 35 in the room 23 and extends to the spiral shell Inside rod set 31, and the second end 342 inside the screw sleeve 31 is extended to, the first end 341 and 342 phase of second end To setting, and the second end 342 is in an arc-shaped.

The driving unit 40 is arranged in the outside of the valve seat 20, has one and 311 phase of limiting slot on the driving unit 40 The driving portion 41 being mutually embedded, and fixed plate 42 is respectively arranged at position of the driving unit 40 relative to two fixed links 24, And there is second positioning region 43 being embedded for first positioning region 241 in each fixed plate 42.In the present embodiment, should Driving unit 40 is a stepper motor, mutual between the driving portion 41 and the limiting slot 311 to be passed through using the driving unit 40 It is embedded and the screw sleeve 31 is driven to generate a reciprocal rotational movement, and each second positioning region 43 is a limit hole, is made every One first positioning region 241 can extend in second positioning region 43, and the driving unit 40 is enable first to be positioned by this Mutual chimeric between portion 241 and second positioning region 43 and be quickly positioned in the fixed link 24.

The fixed cell 50 is the driving unit 40 to be fixed in the fixed link 24, and in the present embodiment, this is fixed The quantity of unit 50 is corresponding with the quantity of the fixed link 24, and each fixed cell 50 is a screw, includes an extension Extend from the fixed part 51 in the fixed part 51 and one in the mounting hole 242 and determines positioned at 43 outside of the second positioning region Position portion 52.

It is noted that in the present embodiment, the outer diameter of first positioning region 241 is slightly less than second positioning region 43 Internal diameter, and the internal diameter of second positioning region 43 is less than the outer diameter of the fixed link 24, and the positioning region 52 of the fixed cell 50 Outer diameter is more than the internal diameter of second positioning region 43.Therefore, when the driving unit 40 is sheathed on this in second positioning region 43 using 2 Behind first positioning region, 241 outside, recycle the fixed cell 50 from second positioning region 43 in contrast to first positioning region 241 Side by the fixed part 51 lock tug in the mounting hole 242, since the outer diameter of the positioning region 52 is more than second positioning region 43 Internal diameter, therefore can be by the fixed cell 50 by first positioning region 241 and the 43 mutual packing of the second positioning region, and make this Driving unit 40 can be effectively secured in two fixed links 24, so can by first positioning region 241 and this second Being mutually embedded and enabling the driving unit 40 that can be more accurately connected and fixed with the valve seat 20 between positioning region 43, reaches and is convenient for The effect of positioning and assembling.

Shown in Fig. 1 to Fig. 5, after the driving unit 40 is fixed on fixed link 24, the driving unit 40 Mutual continuous action relation can be formed by the driving portion 41 and the screw sleeve 31, when the driving unit 40 drives the driving portion 41 to carry out When one first divertical motion, which with the driving portion 41 can carry out first divertical motion, due to the screw sleeve 31 with It is that mutual spiral shell is set between the screw rod 34, when the driving portion 41 carries out the first divertical motion, the screw rod 34 can be driven towards the drive The direction of moving cell 40 is moved, and the stop part 35 is enabled to be gradually distance from the exhaust passage 21, and compresses the elastic element 36, Make one elastic involution power of the elastic element 36 accumulation, and the inlet channel 22 is made to be interconnected with the exhaust passage 21 formation one Air-suction state, and then the aforementioned air is enabled to enter the exhaust passage 21 by the inlet channel 22, then will be right by the exhaust outlet 201 The aforementioned object to be inflatable is inflated.After the aforementioned object to be inflatable is completed to inflate, which can drive the driving portion 41 generate second divertical motion opposite with first divertical motion, and drive the screw rod 34 towards the side of the exhaust passage 21 To carrying out second divertical motion, until the 35 complete backstop of the stop part exhaust passage 21, enables the inlet channel 22 and the row A backstop state mutually obstructed is formed between gas channel 21, and when the 35 backstop exhaust passage 21 of stop part, the elasticity The elasticity involution power that element 36 is accumulated can be released, and by the stop part 35 certain backstop exhaust passage 21, it uses It drives the driving portion 41 to carry out first divertical motion and second divertical motion using the driving unit 40 and drives the screw rod Set 31 carries out the reciprocal rotational movement, and drives the screw rod 34 and the stop part 35 logical in reaching control air inlet in the room 23 The air-suction state between road 22 and the exhaust passage 21 and the backstop state.

In addition, the screw rod 34 is to extend the room 23 by guide sleeve 32, and due to the guide sleeve 32 and the spiral shell The rolling element 33 is provided between rod set 31, when the screw sleeve 31 carries out the reciprocal rotational movement by the driving portion 41 When, the shaking that the driving unit 40 can be effectively prevent to be generated in the process in driving, to promote the use longevity of the driving unit 40 Life.

In addition, when the screw rod 34 drives by carry out first divertical motion by the screw sleeve 31, which is directed towards The direction of the screw sleeve 31 is moved, and the second end 342 that the screw rod 34 extends inside the screw sleeve 31 is made to touch accidentally It when meeting the driving portion 41, can be designed by the arc-shaped of the second end 342, and make the second end 342 and the driving Portion 41 forms point-to-area contact, therefore can reduce reduction because being biased to frictional force caused by contact, and extend and use the longevity Life.

Furthermore the stop part 35 can adjust the height on the screw rod 34 by bolting element 37, and then adjust 35 backstop of stop part more can ensure that the aforementioned object to be inflatable, can after the completion of inflation in the adaptation of the exhaust passage 21 Prevent the reflux of the gas.

Compared to the prior art, the utility model can pass through the phase of first positioning region 241 and second positioning region 43 It is mutually embedded, the driving unit 40 is enable more accurately to be fixed on the valve seat 20, and then simplify structure, convenient for assembling.Separately On the one hand, the utility model, can also using the rolling element 33 set between the guide sleeve 32 and the screw sleeve 31 The shaking for effectivelying prevent the driving unit 40 to be generated in the process in driving, to promote the service life of the driving unit 40.And this It is an arc-shaped that the screw rod 34 in utility model, which extends the second end 342 inside the screw sleeve 31, when the screw rod 34 When operating and touching the driving portion 41 of the driving unit 40, keep the contact surface between the screw rod 34 and the driving portion 41 certainly former Point-to-area contact is changed into the face-to-face contact come, generated deviation frictional force when so as to reduce contact.

Again as shown in fig. 6, in one embodiment, first positioning region 241 in the utility model is one from the fixed link 24 distal end faces set to the concave and are in a counterbore shape, and second positioning region 43 is then from the fixed plate 42 towards the fixed link 24 Direction projection and be in a nose bar shape so that in second positioning region 43 of nose bar shape be able to be embedded in counterbore shape this first In positioning region 241, make the fixed cell 50 by the center of first positioning region 241 and second positioning region 43 by the driving Unit 40 is fixed in the fixed link 24.

Please refer to again shown in Fig. 7 and Fig. 8, in one embodiment, first positioning region 241 in the utility model be one from It is protruded out towards 42 direction of fixed plate at one lateral margin of 24 distal end faces of fixed link and is in a convex block shape, and second positioning region 43, in being in a nick shaped in the fixed plate 42, and are correspondingly arranged at the position of first positioning region 241, make in it is convex it is block-like this One positioning region 241 is able to be embedded in the second positioning region of this of nick shaped 43, and the fixed cell 50 is recycled to be fixed by this The driving unit 40 is fixed in the fixed link 24 by plate 42.

It is last as shown in FIG. 9 and 10, in one embodiment, first positioning region 241 in the utility model be one from 24 distal end faces of fixed link set to the concave and have same profile with the fixed plate 42 and be in a caulking groove shape, and the fixed plate 42 Outer profile form second positioning region 43, keep the fixed plate 42 complete by second positioning region 43 with same profile It is embedded in first positioning region 241 in caulking groove shape, recycles the fixed cell 50 by the fixed plate 42 by the driving unit 40 are fixed in the fixed link 24.

Certainly, the utility model can also have other various embodiments, without departing substantially from the spirit of the present invention and its essence In the case of, those skilled in the art work as can make various corresponding change and deformations, but these according to the utility model Corresponding change and deformation should all belong to the protection domain of the utility model the attached claims.

Claims (10)

1. a kind of screw-down valve reducing shaking, which is characterized in that the screw-down valve includes：

One valve seat has an at least inlet channel, at least an exhaust passage and at least one connection inlet channel and the exhaust The room in channel, and an at least fixed link is extended with outside the valve seat, an end of the fixed link has one first positioning region；

An at least valve body, installation are set to the room, obstruct between the inlet channel and the exhaust passage, have one to make the air inlet Channel makes the inlet channel form one with the exhaust passage with one interconnected air-suction state of exhaust passage formation and one The only gaseity mutually obstructed；

One driving unit, have outside the valve seat and to drive the valve body, on the driving unit at least one with this first The second positioning region that positioning region is mutually embedded and the driving unit is made to be located in the fixed link；And

An at least fixed cell, the driving unit to be fixed in the fixed link, so that the driving unit is in outside the valve seat Portion drives the valve body in the switching for carrying out the air-suction state in the valve seat with should stopping gaseity.

2. the screw-down valve according to claim 1 for reducing shaking, which is characterized in that first positioning region is further one The protrusion being convexly equipped in outside the fixed link, second positioning region are further a limit hole, and first positioning region is made to extend In second positioning region.

3. the screw-down valve according to claim 2 for reducing shaking, which is characterized in that an outer diameter of first positioning region is small An outer diameter in second positioning region.

4. the screw-down valve according to claim 3 for reducing shaking, which is characterized in that the fixed link further more from this The end face of one positioning region is recessed with a mounting hole, and the fixed cell is made to extend the mounting hole by second positioning region It is interior.

5. the screw-down valve according to claim 4 for reducing shaking, which is characterized in that the fixed cell further further includes Have one extend to the fixed part in the mounting hole and one extend from the fixed part and the positioning on the outside of second positioning region Portion, and an outer diameter of the positioning region is more than the outer diameter of second positioning region.

6. the screw-down valve according to claim 1 for reducing shaking, which is characterized in that the valve body has further further included one The screw sleeve that is interlocked with the driving unit, one to the screw sleeve is fixed on the valve seat a guide sleeve, one between this Rolling element between screw sleeve and the guide sleeve, one interlock with the screw sleeve and by the guide sleeve and extend in the room It one screw rod in portion and one is set in the room and is connect with a first end of the screw rod and stopping to the backstop inlet channel Block piece.

7. the screw-down valve according to claim 6 for reducing shaking, which is characterized in that the rolling element is further a rolling Pearl bearing.

8. the screw-down valve according to claim 6 for reducing shaking, which is characterized in that the screw rod is relative to connecting this The first end of stop part is formed with a second end, which extends in the screw sleeve, and the second end into One step is an arc-shaped.

9. the screw-down valve according to claim 6 for reducing shaking, which is characterized in that between the stop part and the screw sleeve Further more it is provided with an elastic element.

10. the screw-down valve according to claim 9 for reducing shaking, which is characterized in that the stop part is further to utilize One bolting element is connected with each other with the screw rod.