CN216478983U

CN216478983U - Rotary valve

Info

Publication number: CN216478983U
Application number: CN202123200072.5U
Authority: CN
Inventors: 金炳赞; 陈伟; 施建
Original assignee: Suzhou Cognitive Auto Parts Co ltd
Current assignee: Suzhou Cognitive Auto Parts Co ltd
Priority date: 2021-12-17
Filing date: 2021-12-17
Publication date: 2022-05-10
Anticipated expiration: 2031-12-17

Abstract

The utility model discloses a rotary valve, including the valve rod, the valve plate, the gear, and connection structure, connection structure includes the connecting portion with valve rod coaxial coupling, be formed with the connector that is close to gear one end in connecting portion, inscribe in the gear and towards the cooperation portion that is close to the direction extension of connecting portion, set up in the mating holes that the cooperation portion is close to the one end of connecting portion, the periphery lateral part interval of connector is provided with a plurality of first archs, the first recess that a plurality of being used for with the corresponding gomphosis of a plurality of first archs is seted up at the interior week lateral part interval of mating holes, the connector can the complex peg graft in the mating holes. The utility model discloses a rotation type valve, through connection structure's setting, during the installation with the connector direct insert locate the mating holes, first arch and first recess can gomphosis each other, have not only guaranteed the bearing capacity of installation back valve, have improved centering nature and guidance quality of valve, no longer need additionally install the bearing moreover, have reduced the installation space of equipment.

Description

Rotary valve

Technical Field

The utility model relates to a valving field, concretely relates to rotation type valve.

Background

A rotary valve, also known as a star valve, is a regulating valve that changes the valve from an open position to a closed position by rotating a rotating member, such as a rotating flapper, through 90 degrees, allowing or shutting off flow by a rotating member.

The existing rotary valve generally comprises a valve rod, a valve plate and a gear, wherein one end of the valve rod is connected with the valve plate, and the other end of the valve rod is directly inserted into the gear. When the valve plate is used, the driving gear is driven to rotate through the driving mechanism, and then the valve plate is driven to rotate, so that the flow of a pipeline can be controlled. However, when the valve rod is directly inserted into the gear during installation, not only can the bearing capacity of the valve be low and the centering performance and the guiding performance of the valve be poor, but also the installed valve needs to be matched with a bearing for use, so that the overall size of the valve is increased, and the installation space of equipment is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough of prior art, provide a rotary valve.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

the utility model provides a rotary valve, include the valve rod, connect in the valve plate of valve rod one end, connect in the gear of the valve rod other end, rotary valve is still including locating the valve rod with connection structure between the gear, connection structure include with valve rod coaxial coupling's connecting portion, form in connecting portion are close to the connector of gear one end, inscribe in the gear and towards being close to the cooperation portion that the direction of connecting portion extends, set up in the cooperation portion is close to the mating holes of the one end of connecting portion, the periphery lateral part interval of connector is provided with a plurality of first archs, the interior peripheral part interval of mating holes seted up a plurality of be used for with the first recess of the corresponding gomphosis of a plurality of first archs, the connector can the complex peg graft in the mating holes.

Preferably, a second groove is formed between two adjacent first protrusions, a second protrusion is formed between two adjacent first grooves, and the plurality of second grooves and the plurality of second protrusions are in one-to-one correspondence and are mutually embedded.

Preferably, the rotary valve further comprises an insertion hole formed in an end face of the connecting portion close to the valve rod, and the valve rod is inserted into the insertion hole.

Preferably, the engaging portion includes a base inscribed in the gear, and an engaging cylinder provided on the base and extending toward a direction close to the connecting portion, and the engaging hole is opened on an end surface of the engaging cylinder close to the connecting portion.

Preferably, the rotary valve further comprises a limiting block arranged at the inner bottom of the matching hole, and a limiting groove arranged at the position, close to one end face of the matching part, of the connector and matched with the limiting block, wherein when the connector is inserted into the matching hole, the limiting block is embedded with the limiting groove.

Further preferably, the stopper is truncated cone-shaped and decreases radially in a direction approaching the connecting portion.

Preferably, the rotary valve further includes a sealing groove formed between the gear and the fitting portion, and a sealing ring sleeved on the fitting portion and engaged with the sealing groove.

Further preferably, the rotary valve further comprises a cover plate, the cover plate is sleeved on the matching part and can be shielded on the cover plate body on the gear, the cover plate body is far away from one side of the gear and is surrounded on the cover barrel on the periphery side of the matching part, the cover plate body is arranged close to one side of the gear and is inserted into the inserting ring in the sealing groove, and the axial lead of the inserting ring and the axial lead of the cover barrel are overlapped with each other.

Still further preferably, a displacement groove is formed between the plug ring and the matching portion, and the sealing ring is movably arranged in the displacement groove.

Still further preferably, the seal ring comprises a first ring body and a second ring body which are integrally formed, and an annular deformation groove is formed between the first ring body and the second ring body.

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage: the utility model discloses a rotation type valve, through connection structure's setting, during the installation with the connector directly insert locate the mating holes, the bearing capacity of valve after not only having guaranteed the installation has improved centering nature and guidance quality of valve to first arch and first recess gomphosis each other, no longer needs additionally to install the bearing moreover, has reduced the installation space of equipment.

Drawings

Fig. 1 is a schematic structural diagram of a rotary valve according to an embodiment of the present invention;

FIG. 2 is an exploded view of FIG. 1;

fig. 3 is a schematic axial cross-sectional view of fig. 1.

In the figure: 1. a valve stem; 2. a valve plate; 3. a gear; 4. a connecting portion; 5. a connector; 6. a fitting portion; 6a, a base; 6b, a matching cylinder; 7. a mating hole; 8. a first protrusion; 9. a first groove; 10. a second groove; 11. a second protrusion; 12. a jack; 13. a limiting block; 14. a limiting groove; 15. a sealing groove; 16. a seal ring; 16a, a first ring body; 16b, a second ring body; 16c, a deformation groove; 17. a cover plate; 17a, a cover plate body; 17b, a cover cylinder; 17c, a plug-in ring; 18. a displacement groove.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings.

The utility model relates to an improvement to the valve, rotation type valve after the improvement, through connection structure's setting, during the installation with connector 5 direct insert locate mating holes 7, first arch 8 and first recess 9 gomphosis each other, have not only guaranteed the bearing capacity of installation back valve, have improved the centering nature and the guidance quality of valve, no longer need additionally install the bearing moreover, have reduced the installation space of equipment.

Referring to fig. 1-3, a rotary valve is shown, which includes a valve rod 1, a valve plate 2 connected to one end of the valve rod 1, a gear 3 connected to the other end of the valve rod 1, and a connecting structure disposed between the valve rod 1 and the gear 3, where the connecting structure includes a connecting portion 4 coaxially connected to the valve rod 1, a connecting head 5 formed at one end of the connecting portion 4 close to the gear 3, a fitting portion 6 inscribed in the gear 3 and extending toward a direction close to the connecting portion 4, and a fitting hole 7 opened at one end of the fitting portion 6 close to the connecting portion 4, a plurality of first protrusions 8 are disposed at intervals on an outer peripheral side portion of the connecting head 5, a plurality of first grooves 9 for corresponding fitting with the plurality of first protrusions 8 are disposed at intervals on an inner peripheral side portion of the fitting hole 7, and the connecting head 5 can be fittingly inserted into the fitting hole 7.

Further, as shown in fig. 2, a second groove 10 is formed between two adjacent first protrusions 8, a second protrusion 11 is formed between two adjacent first grooves 9, and the plurality of second grooves 10 and the plurality of second protrusions 11 are in one-to-one correspondence and are mutually embedded. So, through the cooperation of second recess 10 and second arch 11, further assurance connector 5 and mating holes 7's stability of being connected has guaranteed the result of use of valve.

The rotary valve further comprises a jack 12 arranged on one end face of the connecting part 4 close to the valve rod 1, and the valve rod 1 is inserted into the jack 12. The valve rod 1 is here fixedly connected to the connecting part 4.

In the present embodiment, the fitting portion 6 includes a base 6a internally engaged with the gear 3, and a fitting cylinder 6b provided on the base 6a and extending in a direction toward the connecting portion 4, and the fitting hole 7 is opened on one end surface of the fitting cylinder 6b near the connecting portion 4.

Further, as shown in fig. 3, the rotary valve further includes a limiting block 13 disposed at the inner bottom of the matching hole 7, and a limiting groove 14 disposed on an end surface of the connector 5 close to the matching portion 6 and matched with the limiting block 13, wherein when the connector 5 is inserted into the matching hole 7, the limiting block 13 is embedded with the limiting groove 14. Wherein the stopper 13 is truncated cone shaped and decreases radially in a direction approaching the connecting portion 4. Through the cooperation of stopper 13 and spacing groove 14, the stability of being connected of connector 5 with mating holes 7 has further been guaranteed.

In this embodiment, the rotary valve further includes a sealing groove 15 formed between the gear 3 and the matching portion 6, a sealing ring 16 sleeved on the matching portion 6 and engaged with the sealing groove 15, and a cover plate 17, wherein the cover plate 17 includes a cover plate body 17a sleeved on the matching portion 6 and capable of shielding the gear 3, a cover cylinder 17b disposed on one side of the cover plate body 17a away from the gear 3 and surrounding the matching portion 6, and an insertion ring 17c disposed on one side of the cover plate body 17a close to the gear 3 and inserted into the sealing groove 15, and an axial line of the insertion ring 17c and an axial line of the cover cylinder 17b coincide with each other. Here, the gear 3 is driven by a motor, and the cover plate 17 is arranged to protect the gear 3 and the motor and prevent impurities from entering the motor; and through the setting of sealing washer 16, thereby can avoid in the fluid infiltration gear 3 entering motor through gear 3, cooperation apron 17 realizes the protection of motor.

Furthermore, a displacement groove 18 is formed between the plug ring 17c and the mating portion 6, and the sealing ring 16 is movably disposed in the displacement groove 18. Through the setting of displacement groove 18, sealing washer 16 can be in the activity of displacement groove 18 to realize the dynamic seal of gear 3 rotation in-process, further improved sealing washer 16's sealed effect, play absolutely dustproof, prevent high pressure, steam injection.

Preferably, the sealing ring 16 includes a first ring body 16a and a second ring body 16b which are integrally formed, and an annular deformation groove 16c is formed between the first ring body 16a and the second ring body 16 b. The centers of the first ring body 16a and the second ring body 16b are overlapped, the diameter of the first ring body 16a is larger than that of the second ring body 16b, the lower axial parts of the first ring body 16a and the second ring body 16b are integrally connected, and a deformation groove 16c is formed between the upper axial parts. In the rotation process of the gear 3, relative displacement can be generated between the gear and the plug-in ring 17c, and through the arrangement of the deformation groove 16c, deformation allowance can be provided for the sealing ring 16, so that the sealing effect of the sealing ring 16 can still be ensured in the relative displacement process of the gear 3 and the plug-in ring 17 c.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. The utility model provides a rotary valve, includes the valve rod, connect in the valve plate of valve rod one end, connect in the gear of the valve rod other end, its characterized in that: the rotary valve is characterized in that the rotary valve is further arranged on the valve rod and a connecting structure between the gears, the connecting structure comprises a connecting portion and a connecting portion, wherein the connecting portion is coaxially connected with the valve rod, the connecting portion is formed in a mode that the connecting portion is close to a connector of one end of the gear, the connecting portion is internally connected with the gear and is close to a matching portion extending towards the direction of the connecting portion, the matching portion is arranged close to a matching hole of one end of the connecting portion, a plurality of first bulges are arranged at intervals on the outer side of the connector, a plurality of first grooves used for being embedded with the first bulges are formed at intervals on the inner side of the matching hole, and the connector can be matched with the first grooves in an inserting mode.

2. A rotary valve as claimed in claim 1, wherein: a second groove is formed between every two adjacent first bulges, a second bulge is formed between every two adjacent first grooves, and the plurality of second grooves correspond to the plurality of second bulges in a one-to-one mode and are mutually embedded.

3. A rotary valve as claimed in claim 1, wherein: the rotary valve further comprises a jack arranged on one end face, close to the valve rod, of the connecting portion, and the valve rod is inserted into the jack.

4. A rotary valve as claimed in claim 1, wherein: the matching part comprises a base which is internally connected with the gear, and a matching barrel which is arranged on the base and extends towards the direction close to the connecting part, and the matching hole is formed in the end face, close to the connecting part, of the matching barrel.

5. A rotary valve as claimed in claim 1, wherein: the rotary valve further comprises a limiting block arranged at the inner bottom of the matching hole, and a limiting groove arranged on the connecting head and close to one end face of the matching part, wherein the limiting groove is matched with the limiting block, and the limiting block is embedded with the limiting groove when the connecting head is inserted into the matching hole.

6. A rotary valve as claimed in claim 5, wherein: the limiting blocks are in a circular truncated cone shape and are radially reduced along the direction close to the connecting portion.

7. A rotary valve as claimed in claim 1, wherein: the rotary valve further comprises a sealing groove formed between the gear and the matching part, and a sealing ring sleeved on the matching part and embedded with the sealing groove.

8. A rotary valve as claimed in claim 7, wherein: the rotary valve further comprises an cover plate, the cover plate is arranged on the matching portion in a sleeved mode and can be shielded on the cover plate body on the gear, the cover plate body is arranged far away from one side of the gear and is arranged in a surrounding mode of the cover cylinder on the side of the matching portion, the cover plate body is arranged close to one side of the gear and is inserted into the inserting ring in the sealing groove, and the axial lead of the inserting ring and the axial lead of the cover cylinder coincide with each other.

9. A rotary valve as claimed in claim 8, wherein: a displacement groove is formed between the plug-in ring and the matching part, and the sealing ring is movably arranged in the displacement groove.

10. A rotary valve as claimed in claim 9, wherein: the sealing ring comprises a first ring body and a second ring body which are integrally formed, and an annular deformation groove is formed between the first ring body and the second ring body.