CN110260031B

CN110260031B - Stop valve with labor-saving hand wheel

Info

Publication number: CN110260031B
Application number: CN201910486888.7A
Authority: CN
Inventors: 肖国锋
Original assignee: Yancheng Dafeng Honglian Cast Steel Co ltd
Current assignee: Yancheng Dafeng Honglian Cast Steel Co ltd
Priority date: 2019-06-05
Filing date: 2019-06-05
Publication date: 2021-01-01
Anticipated expiration: 2039-06-05
Also published as: CN110260031A

Abstract

The invention provides a stop valve with a labor-saving hand wheel, which comprises a valve body, a valve clack, a valve rod and a hand wheel, wherein the valve clack is positioned in the valve body, the valve rod is connected to the valve clack, the hand wheel is connected to the valve rod, the hand wheel comprises a hand wheel outer ring, a hand wheel inner ring and spokes, the spokes are connected between the hand wheel inner ring and the hand wheel outer ring, the spokes are tubular, columnar extension rods moving along the axial direction of the spokes are arranged in inner cavities of the spokes, fastening devices are arranged outside the spokes, and the extension rods. The invention can increase the radius of the acting moment of the handle, so that the force for rotating the hand wheel is smaller, and the aim of saving labor is achieved.

Description

Stop valve with labor-saving hand wheel

Technical Field

The invention particularly relates to a stop valve with a labor-saving hand wheel.

Background

The valve is a control part in a fluid conveying system, is used for a valve of a fluid control system, has quite a plurality of varieties and specifications from the simplest stop valve to various valves used in a very complicated automatic control system, and can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like; the valve that adopts manual form to open and close generally all can be equipped with the hand wheel, the hand wheel is circular structure, its principle utilizes the hand wheel radius as the arm of force, the reinforcing rotation moment of torsion, consequently, under the equal torsion, the hand wheel radius is big more, the moment of torsion is big more, current hand wheel, its circumference is smooth curve generally, or include some increase friction's molding, however, the hand wheel that adopts this kind of structure is opening or is closing the operation and all need to be realized through the frictional force between hand and the hand wheel, it is tighter when the valve, need great moment of torsion to come under the pivoted condition, bare-handed rotation often very hard, cause operator intensity of labour great.

Disclosure of Invention

In order to solve the technical problem, the invention provides the stop valve with the labor-saving hand wheel, which can increase the radius of the acting torque of the handle, reduce the force for rotating the hand wheel and achieve the purpose of saving labor.

The invention adopts the following technical scheme:

the utility model provides a stop valve with laborsaving hand wheel, includes the valve body, is located the valve clack in the valve body, connects the valve rod on the valve clack and connects the hand wheel on the valve rod, the hand wheel includes hand wheel outer lane, hand wheel inner circle and connects the spoke between hand wheel inner circle and hand wheel outer lane, the spoke is the tubulose, the spoke inner chamber is equipped with along spoke axial displacement's cylindrical extension rod, the spoke still is equipped with fastener outward, and the extension rod passes through fastener and spoke fixed connection.

Preferably, fastener is including the adapter sleeve of cover outside the spoke and the locking cover of cover outside the extension rod, the adapter sleeve overlap outside the locking cover and with locking cover threaded connection, be equipped with on the lateral wall of extension rod along axial extension's spout, be equipped with on the spoke inner wall with spout matched with guide block, be equipped with on the inner wall of locking cover with spout matched with locking piece, still be equipped with the locking groove that is linked together with the spout along circumference extension on the lateral wall of extension rod, circumferential direction to the locking inslot can be followed to the locking piece.

Preferably, the locking piece is arranged on an end face of the locking sleeve, and the locking piece extends axially outwards and radially inwards on the end face of the locking sleeve.

Preferably, the sliding groove axially penetrates through two ends of the extension rod, and the fastening sleeve is detachably connected with the spokes through threads.

Preferably, the spout is along the circumference evenly distributed of extension rod, be equipped with respectively with the corresponding locking groove of spout on the lateral wall of extension rod, the locking groove only is linked together with a spout, and it has the guide block corresponding with the spout to distribute on the inner wall of spoke, it has the locking piece corresponding with the spout to distribute on the inner wall of locking cover.

Preferably, the end of the extension rod is provided with a mounting hole along the axial direction, the ball head handle is mounted in the mounting hole through a bolt thread, and the diameter of the ball head handle is larger than that of the extension rod.

The invention has the beneficial effects that: when the valve is opened and closed, the extension rod is pulled out and then fixed through the fastening device, the extension rod only needs to be pushed by hand, the hand wheel does not need to be tightly held to realize the opening and closing operation of the valve through friction, labor is saved, the radius of the acting torque of the handle can be increased through the extension rod, the force used for rotating the hand wheel is smaller, and the purpose of saving labor is achieved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of a handwheel of the present invention;

FIG. 3 is a schematic structural view of a hand wheel with an extended rod according to the present invention;

FIG. 4 is an exploded view of the spoke, extension rod and ball-end handle joint of the present invention;

fig. 5 is an exploded view of the connection between the tightening sleeve and the locking sleeve of the present invention.

Labeled as: 1. a valve body; 2. a valve flap; 3. a valve stem; 4. a hand wheel; 5. an outer ring of the hand wheel; 6. an inner ring of a hand wheel; 7. spokes; 8. an extension rod; 9. fastening sleeves; 10. a locking sleeve; 11. a chute; 12. a guide block; 13. a locking block; 14. a locking groove; 15. mounting holes; 16. a ball head handle; 17. and (4) bolts.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

As shown in fig. 1 to 5, a stop valve with a labor-saving hand wheel according to this embodiment includes a valve body 1, a valve flap 2 located in the valve body 1, a valve rod 3 connected to the valve flap 2, and a hand wheel 4 connected to the valve rod 3, where the hand wheel 4 includes a hand wheel outer ring 5, a hand wheel inner ring 6, and spokes 7 connected between the hand wheel inner ring 6 and the hand wheel outer ring 5, the spokes 7 are tubular, a columnar extension rod 8 axially moving along the spokes 7 is disposed in an inner cavity of the spokes 7, a fastening device is further disposed outside the spokes 7, the extension rod 8 is fixedly connected to the spokes 7 through the fastening device, when the hand wheel 4 needs to be operated, the extension rod 8 is pulled outwards and is fixed through the fastening device, only the extension hand rod 8 needs to be used, the hand wheel does not need to be tightly held to open and close the valve through friction force, which is labor-saving, and the extension rod 8 can increase the, the force for rotating the hand wheel 4 is smaller, and the aim of saving labor is achieved.

The fastening device comprises a fastening sleeve 9 sleeved outside the spoke 7 and a locking sleeve 10 sleeved outside the extension rod 8, the fastening sleeve 9 is sleeved outside the locking sleeve 10 and is in threaded connection with the locking sleeve 10, a sliding groove 11 extending along the axial direction is arranged on the side wall of the extension rod 8, a guide block 12 matched with the sliding groove 11 is arranged on the inner wall of the spoke 7, the extension rod 8 can move axially in the inner cavity of the spoke 7 along the guide block 12 through the sliding groove 11, a locking block 13 matched with the sliding groove 11 is arranged on the inner wall of the locking sleeve 10, the extension rod 8 can enter the inner cavity of the spoke 7 through the sliding groove 11 and along the locking block 13, a locking groove 14 extending along the circumferential direction and communicated with the sliding groove 11 is also arranged on the side wall of the extension rod 8, the locking block 13 can rotate to the locking groove 14 along the circumferential direction, the locking sleeve 10 is rotated to enable the locking block 13 to enter the locking groove 14, the extension rod 8 cannot rotate in the, the hand wheel 4 can not move axially under the matching of the locking block 13 and the locking groove 14, so that the position of the extension rod 8 is determined, and the hand wheel can be operated by pushing the extension rod 8.

The locking block 13 is arranged on the end face of the locking sleeve 10, the locking block 13 extends outwards along the axial direction and extends inwards along the radial direction on the end face of the locking sleeve 10, whether the locking block 13 is located at the locking groove 14 or not can be conveniently observed, the locking sleeve 10 can be rotated conveniently, and the locking block 13 can enter the locking groove 14.

The sliding groove 11 axially penetrates through two ends of the extension rod 8, so that the extension rod 8 can be conveniently installed, and the fastening sleeve 9 is detachably connected with the spoke 7 through threads; the sliding grooves 11 are uniformly distributed along the circumferential direction of the extension rod 8, the side wall of the extension rod 8 is provided with locking grooves 14 corresponding to the sliding grooves 11 respectively, the locking grooves 14 are only communicated with one sliding groove 11, the inner wall of the spoke 7 is distributed with guide blocks 12 corresponding to the sliding grooves 11, and the inner wall of the locking sleeve 10 is distributed with locking blocks 13 corresponding to the sliding grooves 11; the end part of the extension rod 8 is provided with a mounting hole 15 along the axial direction, a ball head handle 16 is installed in the mounting hole 15 through a bolt 17 in a threaded mode, and the diameter of the ball head handle 16 is larger than that of the extension rod 8; during the assembly, insert 7 inner chambers of spoke according to spout 11 and guide block 12 matched with direction with the one end of extension rod 8, with adapter sleeve 9 and locking cover 10 threaded connection, embolia adapter sleeve 9 along extension rod 8 according to locking block 13 and the spout 11 matched with direction of locking cover 10, finally overlap adapter sleeve 9 on spoke 7, it makes threaded connection between adapter sleeve and spoke 7 to rotate adapter sleeve 9, because be threaded connection equally between adapter sleeve 9 and the locking cover 10, adapter sleeve 9 drives locking cover 10 and removes to the locking direction of locking cover 10 along spout 11 in locking process, adapter sleeve 9 is fixed the back, pass through bolt 17 threaded connection with bulb handle 16 in mounting hole 15 again, the assembly finishes promptly.

The working principle of the invention is as follows:

during assembly, one end of an extension rod 8 is inserted into an inner cavity of a spoke 7 in the direction of matching a sliding groove 11 and a guide block 12, a fastening sleeve 9 is in threaded connection with a locking sleeve 10, the fastening sleeve 9 is sleeved in the extension rod 8 in the direction of matching a locking block 13 of the locking sleeve 10 with the sliding groove 11, finally the fastening sleeve 9 is sleeved on the spoke 7, the fastening sleeve 9 is rotated to enable the fastening sleeve to be in threaded connection with the spoke 7, the fastening sleeve 9 is also in threaded connection with the locking sleeve 10, the fastening sleeve 9 drives the locking sleeve 10 to move in the locking direction of the locking sleeve 10 along the sliding groove 11 in the locking process, and after the fastening sleeve 9 is fixed, a ball handle 16 is installed in an installation hole 15 through a bolt 17 in a threaded mode, namely assembly is finished;

when the hand wheel 4 needs to be operated, the extension rod 8 is pulled outwards, the locking groove 14 in the extension rod 8 is made to move to the locking block 13, the locking sleeve 10 is rotated at the moment, the locking block 13 enters the locking groove 14, certain axial movement can be generated due to the thread effect when the locking sleeve 10 rotates, when a worker operates, the axial position of the extension rod 8 is finely adjusted, so that the position of the locking block 13 is matched, finally, the locking block 13 is limited in the locking groove 14, the extension rod 8 cannot rotate circumferentially under the matching of the guide block 12 and the sliding groove 11 at the moment, and cannot move axially under the matching of the locking block 13 and the locking groove 14, so that the position of the extension rod 8 is determined; because the extension rod 8 prolongs the operating force arm of the hand wheel 4, the hand wheel 4 can be rotated through the extension rod 8, and the aim of saving labor can be fulfilled.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A stop valve with a labor-saving hand wheel is characterized by comprising a valve body, a valve clack positioned in the valve body, a valve rod connected to the valve clack and a hand wheel connected to the valve rod, wherein the hand wheel comprises a hand wheel outer ring, a hand wheel inner ring and spokes connected between the hand wheel inner ring and the hand wheel outer ring, the spokes are tubular, columnar extension rods moving along the axial direction of the spokes are arranged in inner cavities of the spokes, fastening devices are further arranged outside the spokes, and the extension rods are fixedly connected with the spokes through the fastening devices; fastening device is including the adapter sleeve of cover outside the spoke and the locking cover of cover outside the extension rod, the adapter sleeve overlap outside the locking cover and with locking cover threaded connection, be equipped with the spout along axial extension on the lateral wall of extension rod, be equipped with on the spoke inner wall with spout matched with guide block, be equipped with on the terminal surface of locking cover with spout matched with locking piece, the locking piece extends along radial inside on the terminal surface of locking cover, still be equipped with the locking groove that is linked together with the spout along circumference extension on the lateral wall of extension rod, circumferential rotation to locking inslot can be followed to the locking piece.

2. The shut-off valve with a labor-saving hand wheel as claimed in claim 1, wherein the locking block is disposed on an end face of the locking sleeve, and the locking block extends axially outward and radially inward on the end face of the locking sleeve.

3. The stop valve with the labor-saving hand wheel as claimed in claim 2, wherein the sliding groove axially penetrates through two ends of the extension rod, and the fastening sleeve is detachably connected with the spokes through threads.

4. The stop valve with the labor-saving hand wheel according to claim 3, wherein the sliding grooves are uniformly distributed along the circumferential direction of the extension rod, the side wall of the extension rod is provided with locking grooves corresponding to the sliding grooves, the locking grooves are communicated with only one sliding groove, the inner wall of the spoke is distributed with guide blocks corresponding to the sliding grooves, and the end surface of the locking sleeve is distributed with locking blocks corresponding to the sliding grooves.

5. The stop valve with the labor-saving hand wheel as claimed in claim 4, wherein a mounting hole is axially formed in the end of the extension rod, a ball knob is mounted in the mounting hole through a bolt thread, and the diameter of the ball knob is larger than that of the extension rod.