CN218863309U - Valve device - Google Patents

Abstract

The utility model discloses a valve gear, this valve gear include drive assembly, output shaft part, locating part and elastomeric element, and drive assembly includes the connecting seat, and the output shaft part includes the output shaft and ends the portion of supporting, and the connecting seat has the through hole. The limiting part is fixedly connected with the output shaft or in a limiting connection or integrated structure, at least part of the connecting seat is positioned between the abutting part and the limiting part along the axial direction of the valve device, the connecting seat comprises a first side surface and a second side surface which are positioned on two opposite sides of the connecting seat, the abutting part abuts against the first side surface, one side of the elastic component abuts against the limiting part along the axial direction of the valve device, and the other side of the elastic component abuts against the second side surface; or the limiting piece is abutted with the second side face, one side of the elastic component is abutted with the abutting portion along the axial direction of the valve device, and the other side of the elastic component is abutted with the first side face. The valve device can better solve the problem that the output shaft has axial play and improve the working reliability of the valve device.

Description

Valve device

Technical Field

The utility model relates to a control valve technical field especially relates to a valve gear.

Background

The existing electric valve generally comprises a driving assembly and a valve assembly, wherein the driving assembly comprises a stator, a rotor and an output shaft, one part of the output shaft is in transmission connection with the rotor or in transmission connection through a gear set, the other part of the output shaft penetrates through a shell of the driving assembly to be in transmission connection with a valve core of the valve assembly, and in the process that the rotor drives the output shaft to rotate, the output shaft possibly generates axial movement, so that noise and the like are generated.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a valve gear, this valve gear can reduce the axial float of output shaft.

The utility model discloses a valve device, include: a drive assembly including a connection seat; the output shaft part comprises an output shaft and a stopping part, the connecting seat is provided with a through hole, and the output shaft part is positioned in the through hole; the limiting part is fixedly connected with the output shaft or in a limiting connection or an integrated structure, at least part of the connecting seat is positioned between the abutting part and the limiting part along the axial direction of the output shaft, the connecting seat comprises a first side surface and a second side surface which are positioned on two opposite sides of the connecting seat in the axial direction, and the abutting part abuts against the first side surface; an elastic member; wherein: along the axial direction of the output shaft, one side of the elastic component is abutted with the limiting piece, and the other side of the elastic component is abutted with the second side face.

The utility model discloses a valve gear's beneficial effect: because the output shaft part is provided with the abutting part and the output shaft, the abutting part abuts against the first side surface of the connecting seat, one side of the elastic part abuts against the limiting part along the axial direction of the valve device, and the other side of the elastic part abuts against the second side surface of the connecting seat. Under the work limiting action of the stopping part, the elastic part and the limiting part, the output shaft part is difficult to move upwards along the axial direction of the output shaft part, so that the stopping part is separated from the first side surface, and the axial movement of the output shaft part relative to the connecting seat along the valve device is reduced. Or, the output shaft part is provided with a stopping part and an output shaft, the limiting part is abutted with the second side face of the connecting seat, one side of the elastic part is abutted with the limiting part along the axial direction of the valve device, the other side of the elastic part is abutted with the first side face of the connecting seat, the output shaft part is difficult to move downwards along the axial direction of the output shaft part to enable the limiting part to be separated from the second side face, and therefore the axial movement of the output shaft part relative to the connecting seat along the axial direction of the valve device is reduced.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

Fig. 1 is a schematic structural view of a valve device according to a first embodiment of the present invention;

fig. 2 is an exploded schematic view of a valve device according to a first embodiment of the present invention;

fig. 3 is a front view of a valve device according to a first embodiment of the present invention;

FIG. 4 isbase:Sub>A sectional view taken along line A-A of FIG. 3;

fig. 5 is a partial schematic structural view of a valve device according to a first embodiment of the present invention;

fig. 6 is an exploded view of the structure shown in fig. 5.

Fig. 7 is a schematic structural view of a connecting seat, an output shaft member, an elastic member, and a stopper of a valve device according to a first embodiment of the present invention;

fig. 8 is a cross-sectional view of the connection seat, the output shaft member, the elastic member, and the stopper of the first embodiment of the present invention;

fig. 9 is a partial sectional view of a valve device according to a second embodiment of the present invention;

fig. 10 is a partial sectional view of a valve device according to a third embodiment of the present invention.

Reference numerals:

1. a drive assembly; 11. a connecting seat; 111. a through hole; 112. a first side; 113. a second side surface; 12. a stator; 13. a rotor; 14. a transmission mechanism; 141. a drive shaft; 142. a sun gear; 143. fixing a gear ring; 144. a planet wheel assembly;

2. an output shaft member; 21. a stopping part; 241. a planetary wheel shaft; 22. an output shaft; 221. a limiting groove; 23. a plug-in part; 24. an output planet carrier;

3. a limiting member; 4. an elastic member;

5. a valve assembly; 51. a valve body; 511. a valve cavity; 52. a valve core; 521. inserting holes; 522. a limiting groove; 53. a valve cover; 531. a limiting protrusion; 54. a first seal member; 55. a second seal.

Detailed Description

In order to make the technical problems, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further explained below by means of specific embodiments in conjunction with the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features for distinguishing between descriptive features, non-sequential, non-trivial and non-trivial. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

A specific structure of a valve device according to an embodiment of the present invention will be described below with reference to fig. 1 to 10.

The utility model discloses a valve device, as shown in fig. 1 and fig. 4, this valve device includes drive assembly 1, output shaft member 2, locating part 3 and elastomeric element 4, drive assembly 1 includes connecting seat 11, output shaft member 2 includes output shaft 22 and ends portion 21, connecting seat 11 has through hole 111, output shaft 22 part is located through hole 111, locating part 3 and output shaft 22 fixed connection or spacing connection or a body structure, axial along valve device, at least some connecting seat 11 are located between portion 21 and the locating part 3, axial along valve device, connecting seat 11 is including being located its first side 112 and the second side 113 of back of the body both sides mutually.

In one embodiment, as shown in fig. 8, the abutting portion 21 abuts against the first side surface 112, one side of the elastic member 4 abuts against the stopper 3, and the other side of the elastic member 4 abuts against the second side surface 113 in the axial direction of the valve device. It can be understood that, under the limiting action of the abutting portion 21, the elastic component 4 and the limiting member 3, the elastic component 4 gives a force to the abutting portion 21 towards the first side surface 112 through the limiting member 3 and the output shaft 22, the output shaft component 2 is not only difficult to move upwards along the axial direction thereof so that the abutting portion 21 is separated from the connecting seat 11 side, but also cannot move downwards along the circumferential direction thereof so that the elastic component 4 is separated from the connecting seat 11, thereby reducing the movement of the output shaft component 2 along the axial direction thereof, and in the actual working process, the axial movement of the output shaft component 2 can influence the planet wheel assembly 144 inside the driving assembly 1, and the valve device of the present embodiment can reduce the movement of the output shaft component 2 along the axial direction thereof, on one hand, reduce the noise generated by itself, reduce the wear of the output shaft component 2, and improve the working life thereof; on the other hand, the collision or extrusion between the output shaft 2 and the planetary wheel assembly 144 inside the driving assembly 1 can be reduced, so that the noise of the driving assembly 1 (mainly the planetary wheel assembly 144) can be reduced, the risk of the rotation blockage of the driving assembly 1 (mainly the planetary wheel assembly 144) is reduced, the abrasion of the driving assembly 1 (mainly the planetary wheel assembly 144) is reduced, the service life of the transmission mechanism 14 is prolonged, and the service life and the reliability of the valve device are further improved.

Meanwhile, even if the output shaft part 2 generates axial movement in the working process, the elastic part 4 can play a role in buffering when the output shaft part 2 moves, so that the movement amount of the output shaft part 2 is ensured to be small in the actual working process.

Optionally, the elastic member 4 is a wave spring. The wave spring is smaller in height than the coil spring, and the dimension of the elastic member 4 in the axial direction of the output shaft 22 can be restricted, thereby reducing the overall size of the valve device.

Optionally, the elastic member 4 is a belleville spring. Compared with a spiral spring, the butterfly spring enables the output shaft 22 of the output shaft component 2 to be stressed uniformly in the axial direction, the eccentricity of the output shaft 22 of the output shaft component 2 can be reduced, and the risk that the output shaft 22 of the output shaft component 2 is blocked is reduced.

Optionally, the resilient member 4 is a resilient pad. Compared with a wave spring and a butterfly spring, the elastic gasket has small size and low cost, and can reduce the overall size and manufacturing cost of the valve device. The material of the elastic pad may be selected from elastic materials such as rubber and silicone, and the specific material of the elastic pad is not limited herein.

In some embodiments, as shown in fig. 7, the output shaft 22 has a limiting groove 221 extending along a circumferential direction thereof, the limiting member 3 is located in the limiting groove 221, at least part of the limiting member 3 is located in the limiting groove 221, and at least part of the limiting member 3 protrudes from an outer circumference of the output shaft 22 in a radial direction of the output shaft 22. It can be understood that, since the limiting member 3 can press the elastic member 4 against the second side surface 113 of the connecting seat 11, if the limiting member 3 can move relative to the output shaft 22, the limiting effect of the limiting member 3 and the elastic member 4 on the output shaft 22 will be reduced, in this embodiment, the output shaft 22 has the limiting groove 221, and the limiting member 3 is located in the limiting groove 221, so that the movement of the limiting member 3 relative to the output shaft 22 can be avoided, and the limiting effect of the limiting member 3 and the elastic member 4 on the output shaft 22 is ensured.

In some embodiments, the output shaft member 2 includes the output carrier 24, the abutting portion 21 is close to the first side surface 112 with respect to the output carrier 24 in the axial direction of the valve device, the radial dimension of the abutting portion 21 is smaller than that of the output carrier 24 in the radial direction of the valve device, and the side of the abutting portion 21 facing the first side surface 112 abuts against the first side surface 112. It can be understood that, since the side of the abutting portion 21 facing the first side surface 112 abuts against the first side surface 112, the output carrier 24 is not directly rubbed against the first side surface 112, and the output carrier 24 is ensured to be able to stably rotate. Since the output carrier 24 has a large torque to be transmitted, the diameter of the output carrier 24 is larger than the size of the abutting portion 21.

In some embodiments, the output shaft member 2 includes an insertion portion 23, the insertion portion 23 is located on the output shaft 22, the insertion portion 23 is far away from the abutting portion 21 relative to the limiting member 3, and the insertion portion 23 extends along the axial direction of the valve device; the valve device comprises a valve core 52, wherein the valve core 52 is provided with a plug hole 521, at least part of the plug part 23 is positioned in the plug hole 521, the plug hole 521 extends along the axial direction of the valve device, and the plug part 23 is in clearance fit with the wall forming the plug hole 521. Therefore, the valve core 52 is matched with the output shaft part 2 through the matching of the plug part 23 and the plug hole 521, so that the valve core 52 is convenient to mount and dismount on one hand, and can be stably driven to rotate by the output shaft part 2 on the other hand. The insertion hole 521 extends in the axial direction of the valve body 52, and reduces the influence of the axial play of the insertion portion 23 on the valve body 52.

Preferably, the cross-section of the insertion hole 521 is rectangular. This can avoid the occurrence of a phenomenon in which the output shaft member 2 slides relative to the valve body 52 and the valve body 52 cannot stably rotate.

In some embodiments, as shown in fig. 2-3, the drive assembly 1 further includes a stator 12, a rotor 13, and a gear train 14, the rotor 13 being located radially inward of the stator 12, the gear train 14 being drivingly connected to the rotor 13 and the output shaft assembly 2. It can be understood that, in the actual operation process, the rotor 13 is driven to rotate by the coils of the stator 12, the driving transmission mechanism 14 is driven to drive the output shaft part 2, and the structure is simplified while the driving assembly 1 can ensure that the output shaft part 2 is stably driven to rotate.

In some specific embodiments, as shown in fig. 4 to 5, the transmission mechanism 14 includes a transmission shaft 141, a sun gear 142, a fixed gear ring 143, and a planetary gear assembly 144, the planetary gear assembly 144 is engaged with the fixed gear ring 143 and the sun gear 142 and is connected to the output shaft member 2, the sun gear 142 is sleeved on one end of the transmission shaft 141, and the other end of the transmission shaft 141 is connected to the rotor 13. It can be understood that, by fitting the sun gear 142, the fixed ring gear 143 and the planet gear assembly 144 to finally drive the output shaft 2 to connect, transmission with a large transmission ratio can be realized, and the faster rotating speed of the stator 12 is changed into the relatively slower rotating speed, so that the output shaft 2 is ensured to drive the valve core 52 to rotate at the slower rotating speed, so as to realize the switching of the working state of the valve device.

In some more specific embodiments, as shown in fig. 6, the number of the planetary wheel assemblies 144 is multiple, the multiple planetary wheel assemblies 144 are arranged in sequence along the axial direction of the transmission shaft 141, each planetary wheel assembly 144 is engaged with the fixed gear ring 143, the planetary wheel assembly 144 at one end is engaged with the sun gear 142, and the planetary wheel assembly 144 at the other end is connected with the planetary wheel shaft 241 of the output shaft part 2. It will be appreciated that the provision of a plurality of planet wheel assemblies 144 enables multi-stage reduction to be achieved, thereby ensuring that the output shaft member 2 rotates with a slower speed to drive the valve element 52 to effect switching of the operating states of the valve arrangement. In an actual structure, the planetary wheel assembly 144 may have two stages, three stages, or more stages, and may be specifically selected according to actual needs. It should be additionally noted that the number of the planet wheels of each planet wheel assembly 144 may be two, three, or more, the number of the planet wheels may be selected according to actual needs, and in the multistage planet wheel assembly 144, the number of the planet wheels of the plurality of planet wheel assemblies 144 may be the same or different, and may specifically be selected according to actual needs.

In some embodiments, as shown in fig. 2, the valve assembly 5 includes a valve body 51, a valve core 52, two valve covers 53, a first seal 54, and a second seal 55, the valve body 51 has a valve chamber 511, the valve core 52 is located in the valve chamber 511 and connected to the output shaft 22, the two valve covers 53 are provided, at least part of the two valve covers 53 is located in the valve chamber 511, and the two valve covers 53 are located on both sides of the valve core 52 in the axial direction thereof. One of the valve core 52 and the bonnet 53 has a stopper groove 522, the stopper groove 522 extending in the circumferential direction of the valve core 52, and the other of the valve core 52 and the bonnet 53 has a stopper protrusion 531, the stopper protrusion 531 being located in the stopper groove 522. A second seal 55 is provided between the spool 52 and the valve body 51, and a first seal 54 is provided between the bonnet 53 and the drive assembly 1.

It can be understood that, in the actual operation process, the rotation angle of the valve core 52 needs to be limited to realize the switching of the operating state of the whole valve device, and in this embodiment, through the limiting effect of the limiting protrusion 531 and the limiting groove 522, when the limiting protrusion 531 abuts against the side wall of the limiting groove 522 in the rotation process of the valve core 52, the valve core 52 cannot continue to rotate in this direction, so as to realize the control of the rotation angle of the valve core 52.

In some parallel embodiments, as shown in fig. 9, the limiting member 3 abuts against the second side surface 113, and one side of the elastic member 4 abuts against the abutting portion 21 and the other side of the elastic member 4 abuts against the first side surface 112 in the axial direction of the valve device. It can be understood that, the limiting member 3 abuts against the second side surface 113 of the connecting seat 11, and along the axial direction of the valve device, one side of the elastic member 4 abuts against the limiting member 3, and the other side of the elastic member 4 abuts against the first side surface 112 of the connecting seat 11, under the combined limiting action of the elastic member 4 and the limiting member 3, the output shaft member 2 is difficult to move downwards along the axial direction thereof, so that the limiting member 3 is separated from the second side surface 113, and the output shaft member 2 is difficult to move upwards along the axial direction thereof, so that the elastic member 4 is separated from the first side surface 112, thereby reducing the movement of the output shaft member 2 relative to the connecting seat 11 along the axial direction of the valve device.

In some parallel embodiments, as shown in fig. 10, the valve device includes a valve core 52, along the axial direction of the valve device, the valve core 52 and the abutting portion 21 are located at two sides of the connecting seat 11, the output shaft 22 and the valve core 52 are connected in a limiting manner or fixedly connected or integrated structure, and the limiting member 3 is located at the valve core 52. It can be understood that, in the present embodiment, along the axial direction of the valve device, one side of the elastic component 4 abuts against the valve core 52, and the second side surface 113 of the other side connecting seat 11 abuts against, and the valve core 52 directly serves as the limiting member 3 of the present embodiment, so that the structure of the whole valve device can be simplified, and the assembly of the valve device is facilitated.

Preferably, the elastic member is a spring.

In the description herein, references to the description of "some embodiments," "other embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention, and it is to be understood that the present invention is not limited to the above embodiments, but may be modified within the scope of the present invention.

Claims (10)

1. A valve apparatus, comprising:

a drive assembly (1), the drive assembly (1) comprising a connecting seat (11);

the output shaft component (2) comprises an output shaft (22) and a stopping part (21), the connecting seat (11) is provided with a through hole (111), and the output shaft (22) is partially positioned in the through hole (111);

the limiting piece (3) is fixedly connected or in limiting connection or in an integrated structure with the output shaft (22), at least part of the connecting seat (11) is located between the abutting portion (21) and the limiting piece (3) along the axial direction of the valve device, the connecting seat (11) comprises a first side surface (112) and a second side surface (113) which are located on two opposite sides of the connecting seat along the axial direction of the valve device, and the abutting portion (21) abuts against the first side surface (112);

an elastic member (4), wherein: one side of the elastic component (4) abuts against the limiting piece (3) and the other side of the elastic component (4) abuts against the second side surface (113) along the axial direction of the valve device;

or, the limiting member (3) abuts against the second side surface (113), one side of the elastic member (4) abuts against the abutting portion (21), and the other side of the elastic member (4) abuts against the first side surface (112) in the axial direction of the valve device.

2. A valve device according to claim 1, characterized in that the resilient member (4) is a wave spring or a belleville spring or a resilient washer.

3. The valve device according to claim 1, wherein the output shaft (22) has a limit groove (221) extending along a circumferential direction thereof, at least a part of the limit member (3) is located in the limit groove (221), and at least a part of the limit member (3) protrudes from an outer periphery of the output shaft (22) in a radial direction of the output shaft (22).

4. The valve device according to claim 1, characterized in that the valve device comprises a valve core (52), the valve core (52) and the abutting part (21) are positioned at two sides of the connecting seat (11) along the axial direction of the valve device, the output shaft (22) and the valve core (52) are in limit connection or fixed connection or integrated structure, and the limit part (3) is positioned at the valve core (52).

5. A valve device according to any one of claims 1-4, characterized in that the output shaft member (2) comprises an output planet carrier (24), in the axial direction of the valve device the abutment portion (21) is located close to the first side surface (112) with respect to the output planet carrier (24), in the radial direction of the valve device the radial dimension of the abutment portion (21) is smaller than the radial dimension of the output planet carrier (24), and in that the side of the abutment portion (21) facing the first side surface (112) abuts the first side surface (112).

6. A valve device according to claim 1, characterized in that the output shaft member (2) comprises an insertion part (23), the insertion part (23) being located at the output shaft (22), the insertion part (23) being remote from the abutment part (21) with respect to the stop member (3), the insertion part (23) extending in the axial direction of the valve device; the valve device comprises a valve core (52), wherein the valve core (52) is provided with an insertion hole (521), at least part of the insertion part (23) is positioned in the insertion hole (521), the insertion hole (521) extends along the axial direction of the valve device, and the insertion part (23) is in clearance fit with a wall forming the insertion hole (521).

7. A valve device according to any one of claims 1-3, wherein the drive assembly (1) comprises:

a stator (12);

a rotor (13), the rotor (13) being located radially inward of the stator (12);

and the transmission mechanism (14), the rotor (13) and the output shaft component (2) are in transmission connection with the transmission mechanism (14).

8. The valve device according to claim 7, characterized in that the transmission mechanism (14) comprises a transmission shaft (141), a sun gear (142), a fixed gear ring (143) and a planetary gear assembly (144), the planetary gear assembly (144) is meshed with the fixed gear ring (143) and the sun gear (142) and is in transmission connection with the output shaft part (2), the sun gear (142) is sleeved on one end part of the transmission shaft (141), and the other end part of the transmission shaft (141) is fixedly connected or in limited connection with the rotor (13); the number of the planetary wheel assemblies (144) is multiple, the plurality of the planetary wheel assemblies (144) are sequentially arranged along the axial direction of the valve device, each planetary wheel assembly (144) is meshed with the fixed gear ring (143), the planetary wheel assembly (144) at one end is meshed with the sun wheel (142) along the axial direction of the valve device, and the planetary wheel assembly (144) at the other end is in transmission connection with a planetary wheel shaft (241) included by the output shaft part (2).

9. A valve arrangement according to any one of claims 1-3, characterized in that the valve arrangement further comprises a valve assembly (5), the valve assembly (5) comprising:

a valve body (51), the valve body (51) having a valve cavity (511);

the valve core (52), the output shaft (22) is in transmission connection with the valve core (52), and at least part of the valve core (52) is positioned in the valve cavity (511);

the valve comprises two valve covers (53), at least part of the two valve covers (53) is positioned in the valve cavity (511), and the two valve covers (53) are positioned on two sides of the valve core (52) along the axial direction of the valve core (52).

10. The valve device according to claim 9, wherein one of the valve core (52) and the valve cover (53) has a stopper groove (522), the stopper groove (522) extends in a circumferential direction of the valve core (52), and the other of the valve core (52) and the valve cover (53) has a stopper protrusion (531), at least a part of the stopper protrusion (531) being located in the stopper groove (522).

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