TWI463088B - Control valve - Google Patents

Description

Control valve

The present invention relates to a control mechanism, and more particularly to a control valve.

Pressure devices such as cylinders and hydraulic cylinders often use control valves to control the flow of fluids, thereby controlling the working process of the pressure devices. The conventional control valve has two working states, and controls the operation of the pressure device connected thereto by switching back and forth between the two working states. The control valve of the prior art generally has only one operating member, so that when the operator operates the control valve with one hand, the other hand is in an idle state, which is easy to cause the pressure device to be unexpected due to misoperation or inadvertent contact. The movement of the way causes the operator's hand to be pinched, the safety performance is poor, and there is no foolproof function.

In view of the above, it is necessary to provide a control valve with higher safety performance.

A control valve includes a valve body and a valve core, the valve body is formed to form a valve hole through the valve body, and the air inlet and the air outlet of the valve body are connected to the valve hole; the valve core is slidably mounted on the valve body In the valve hole, the two ends of the valve core respectively protrude from the two ends of the valve body; the control valve further includes two adjusting members and two operating members, and the two adjusting members are oppositely disposed on the two ends of the valve body. And respectively adjustably abutting the two ends of the valve core; the two operating members are respectively fixed on the two adjusting members to adjust the sliding distance of the valve core in the valve body relative to the valve body, thereby realizing the air inlet and the air inlet The air outlet is turned on and off.

Another control valve includes a valve body and a valve core, a valve cavity is formed in the valve body, and a valve body circumference The air inlet and the air outlet are connected to the valve chamber, and the valve core is movably mounted in the valve cavity of the valve body; the control valve further includes two adjusting members, and the two adjusting members are oppositely mounted on the valve body And respectively adjustably abuts the two ends of the valve core; to adjust the sliding distance of the valve core in the valve body relative to the valve body, thereby achieving the conduction and closure of the air inlet and the air outlet.

The control valve has a simple structure, and the control member is disposed opposite to the two ends of the valve body, so that the operation of the control valve must be performed simultaneously with both hands, thereby effectively preventing accidents such as pinching of the operator's hand during use. High security.

100‧‧‧Control valve

10‧‧‧ valve body

11‧‧‧ valve hole

13‧‧‧air inlet

14‧‧‧Intake joint

15‧‧‧Yikou

16‧‧‧Muffler

17‧‧‧ outlet

18‧‧‧Exhaust joint

30‧‧‧Spool

31‧‧‧ valve shaft

35‧‧‧Seal ring

36‧‧‧ Valve Connection

37‧‧‧Through channel

50‧‧‧ splint

53‧‧‧ lead hole

55‧‧‧ Guide post

60‧‧‧Adjustment

61‧‧‧ Main body

611‧‧‧Fixed holes

613‧‧‧ Guide hole

615‧‧‧Limited slot

63‧‧‧Cam Department

631‧‧‧ convex

635‧‧‧ recess

70‧‧‧Clamp cover

71‧‧‧ accommodating chamber

73‧‧‧Installation holes

75‧‧‧Lock hole

78,85‧‧‧ screws

79‧‧‧Lock steel ball

80‧‧‧Operating parts

81‧‧‧Operation handle

83‧‧‧ pivotal department

835‧‧‧Fixed holes

1 is a perspective assembled view of a control valve according to an embodiment of the present invention.

2 is a perspective assembled view of the control valve according to another embodiment of the present invention.

3 is an exploded perspective view of a control valve according to an embodiment of the present invention.

4 is an exploded perspective view of a valve body and a valve core of a control valve according to an embodiment of the present invention.

Figure 5 is a cross-sectional view showing the control valve of the embodiment of the present invention in an on state.

Figure 6 is a cross-sectional view showing the control valve of the embodiment of the present invention in a closed state.

The control valve of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

Referring to FIG. 1 , FIG. 2 and FIG. 3 , the control valve 100 includes a valve body 10 , a valve core 30 , two clamping plates 50 , two adjusting members 60 , two clamping covers 70 , and two operating members 80 . The valve body 10 has a substantially rectangular block shape, and a valve hole 11 is formed in the longitudinal direction to form a substantially cylindrical shape. One side of the valve body 10 is recessed toward the valve hole 11 and is provided with an air inlet connected to the valve hole 11. The port 13 and the two air outlets 15 are disposed at a substantially central position on one side of the valve body 10, and are connected to an intake pipe (not shown) by an intake joint 14. The two air outlets 15 are oppositely disposed on two sides of the air inlet 13 and are disposed adjacent to the air inlet 13 , and each air outlet 15 is blocked by a silencer 16 . The other side of the valve body 10 is recessed adjacently with two air outlets 17 communicating with the valve holes 11, and each air outlet 17 is connected to other external devices such as cylinders by an air outlet joint 18. Preferably, the distance between the two air outlets 15 and the air inlet 13 is equivalent to the distance between the two air outlets 17.

Referring to FIG. 4 together, the spool 30 is substantially cylindrical, and is movably mounted in the valve hole 11 of the valve body 10. The two ends of the valve core 30 respectively protrude from the two ends of the valve body 10, and They are respectively abutted with the two adjustment members 60. The valve core 30 includes a valve shaft 31 and four sealing rings 35 which are axially sleeved or protruded from the valve shaft 31. The four sealing rings 35 correspondingly divide the central portion of the valve shaft 31 into three cylindrical shafts. A valve-like portion 36 is formed in each of the two sides of the valve shaft 31 in the radial direction of the valve shaft 31 to form a conductive groove 37. Preferably, the distance between each adjacent two sealing rings 35 is equal to the distance between the two air outlets 17.

The two clamping plates 50 are substantially rectangular plate-shaped, and are respectively fixedly disposed at two ends of the valve body 10 in the longitudinal direction. Each of the clamping plates 50 has a guiding hole 53 corresponding to the valve shaft 31. A guiding post 55 is protruded from a side of the clamping plate 50 away from the surface of the valve body 10 adjacent to the guiding hole 53.

The two adjusting members 60 are respectively adjustably mounted on the two ends of the valve body 10, and are respectively adjustably abutted on the two ends of the valve shaft 31 to adjust the sliding of the valve shaft 31 relative to the valve body 10 in the valve hole 11 The movement and the closing and closing of the air inlet 13 and the air outlet 17 are realized. In the preferred embodiment of the present invention, the two adjusting members 60 are two-sided cams respectively disposed on the two clamping plates 50 away from the outer side of the valve body 10, and correspondingly resisted by the two clamping plates 50 respectively. The two ends of the valve shaft 31 of the upper guide hole 53. Each of the adjusting members 60 includes a substantially cylindrical main body portion 61 and a cam portion 63 formed on a peripheral edge of one end surface of the main body portion 61. A fixing hole 611 is defined in the axial direction of the end portion of the main body portion 61 away from the end portion of the cam portion 63. The main body portion 61 surrounds the fixing hole 611 and the corresponding guiding post 55 extends through the arc in the axial direction. Shape guide hole 613. A limiting groove 615 is respectively recessed at a position corresponding to the two ends of the outer peripheral edge of the main body portion 61 corresponding to the curved guiding hole 613. In the preferred embodiment, the cam portion 63 is unfolded after being dimensioned to be less than 1:7, preferably 1:8. During actual use, the self-locking of the spool 30 is achieved according to the chamfering self-locking principle. . The cam portion 63 includes a convex portion 631 and a concave portion 635 opposite to the convex portion 631.

The two clamping covers 70 are respectively fixed to the outer sides of the two clamping plates 50 disposed at the two ends of the valve body 10, and are respectively disposed on the two adjusting members 60. In the preferred embodiment of the present invention, the two clamping covers 70 are respectively fixed to the two ends of the valve body 10 through the two clamping plates 50 by fixing screws 78. Each of the clamping covers 70 has a substantially rectangular cover shape, and a substantially cylindrical receiving cavity 71 is recessed toward an end surface of the clamping plate 50 to movably receive the adjusting member 60 in the receiving cavity 71. A mounting hole 73 is formed through the bottom of the accommodating cavity 71 of the clamping cover 70. A locking hole 75 is defined in the side wall of each of the clamping covers 70 corresponding to the limiting slot 615 of the adjusting member 60. The locking hole 75 is elastically mounted with a locking steel ball 79 for adjusting the adjusting member. 60 is opposite to the clamping cover 70 at the position of the two limiting slots 615.

The two operating members 80 are respectively mounted on the two clamping covers 70 and are respectively fixed to the two adjusting members 60 through the mounting holes 73 of the clamping cover 70. In the preferred embodiment, each of the operating members 80 includes an operating handle 81 and a pivoting portion 83 disposed at an end of the operating handle 81. The pivoting portion 83 is provided with a fixing hole 835. The operating member 80 passes through the pivot by a screw 85 The fixing hole 835 on the connecting portion 83 and the mounting hole 73 on the clamping cover 70 are correspondingly fixed in the fixing hole 611 of the main body portion 61.

When assembling, the valve core 30 is first installed in the valve hole 11 of the valve body 10, and the two ends of the valve core 30 respectively protrude from the two ends of the valve hole 11; the two clamping plates 50 are correspondingly mounted on the valve body 10 The two ends of the valve core 30 extend through the guiding holes 53 of the clamping plate 50 respectively from the other side of the guiding post 55; the two adjusting members 60 are respectively disposed on the outer sides of the two clamping plates 50. The post 55 is correspondingly disposed in the guiding hole 613 of the adjusting member 60. The cam portion 63 of the adjusting member 60 correspondingly abuts against the end of the spool 30. The convex portion 631 of the cam portion 63 of one adjusting member 60 abuts against one end of the valve core 30, and the concave portion 635 of the other adjusting member 60 correspondingly abuts against the other end of the valve core 30. Next, the two clamping covers 70 are respectively disposed on the two adjusting members 60, so that the locking holes 75 of the clamping cover 70 are aligned with one of the limiting slots 615 of the adjusting member 60, and the locking steel ball 79 corresponds to The card is elastically inserted into the limiting slot 615. Finally, the two operating members 80 are fixedly mounted on the two clamping covers 70. The screws 85 pass through the fixing holes 835 of the pivoting portion 83 of the operating member 80 and the mounting holes 73 of the clamping cover 70. The fixing of the control valve 100 is completed by being fixed in the fixing hole 611 of the adjusting member 60.

When the control valve 100 is used, the intake port 13 is connected to an intake pipe (not shown) via an intake port 14, and the air outlet 17 is connected to other external devices such as a cylinder through the air outlet 18. The operating handle 81 disposed at the two ends of the control valve 100 is simultaneously operated by both hands, and the operating handle 81 is relatively rotated, and the operating handle 81 drives the two adjusting members 60 to rotate relative to each other; the adjusting member 60 is formed along the curved guiding hole 613 with respect to the clamping plate 50. The cam portion 63 of the adjusting member 60 abuts against the end of the valve body 10 along the cam surface thereof, and the spool 30 is driven by the relative rotation angle of the two cam portions 63 of the two adjusting members 60. The valve body 11 of the valve body 10 moves in the valve hole 11 to realize the conduction and closing of the air inlet 13 and the air outlet 17 of the control valve 100.

Referring to FIG. 5, when the control valve 100 is turned on, each sealing ring 35 on the spool 30 is located at one side of the position where the valve hole 11 is in contact with the air inlet 13 and the air outlet 17, and the air inlet 13 borrows The conduction groove 37 opened in the valve body 30 and the air outlet 17 are electrically connected to each other. Referring to FIG. 6 together, by rotating the two operating members 80 relative to each other, the two adjusting members 60 are caused to urge the spool 30 to slide in the valve hole 11 of the valve body 10 until the sealing ring 35 on the spool 30 blocks the The valve hole 11 is in contact with the air outlet 17, and at this time, the passage from the air inlet 13 to the air outlet 17 is blocked, and the control valve 100 is in a non-conducting state. At this time, the pressure in the control valve 100 can be effectively controlled by the air outlet 15 and the muffler 16 provided on both sides of the intake port 13, and the inside of the control valve 100 can be prevented from being damaged due to excessive pressure.

The control valve 100 has a simple structure. By operating the operating member 80 opposite to the two ends of the valve body, the control valve 100 must be operated simultaneously with both hands, thereby effectively preventing the operator from being pinched during use. When an accident occurs, it has a high safety performance.

It can be understood that the two clamping plates 50 can be omitted. At this time, the two adjusting members 60 are directly clamped on the two ends of the valve body 10 and correspondingly abut against the two ends of the valve core 30 extending from the two ends of the valve body 10. Correspondingly, the two clamping covers 70 are disposed on the two adjusting members 60 and are respectively fixed to the two ends of the valve body 10.

It can be understood that the two clamping covers 70 can also be omitted, and the two operating members 80 are correspondingly fixed to the two adjusting members 60.

In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only the preferred embodiment of the present invention, and the scope of the present invention is not limited to the above-described embodiments, and equivalent modifications or variations made by those skilled in the art in light of the spirit of the present invention are It should be covered by the following patent application.

100‧‧‧Control valve

10‧‧‧ valve body

14‧‧‧Intake joint

16‧‧‧Muffler

50‧‧‧ splint

70‧‧‧Clamp cover

75‧‧‧Lock hole

79‧‧‧Lock steel ball

80‧‧‧Operating parts

81‧‧‧Operation handle

83‧‧‧ pivotal department

85‧‧‧ screws

Claims (8)

A control valve includes a valve body and a valve core, wherein: the valve body is formed to form a valve hole through the valve body, and the air inlet and the air outlet of the valve body are connected to the valve hole; the valve core is slidably The valve body is disposed in the valve hole of the valve body, and the two ends of the valve core respectively extend from the two ends of the valve body; the control valve further includes two clamping plates, two adjusting members and two operating members, and the two clamping plates are respectively fixedly mounted At the two ends of the valve body, a guide hole is formed in each of the clamping plates corresponding to the valve core, and the two ends of the valve core pass through the guiding holes on the clamping plate, and each clamping plate is adjacent to one side of the valve body. a guiding post is further disposed on the guiding hole, and the two adjusting members are respectively disposed on opposite sides of the two clamping plates, and are respectively adjustably abutted on the two ends of the valve core, and each adjusting member is axially An arc-shaped guiding hole is formed in the direction; the guiding post is correspondingly inserted into the movable guiding hole; and the two operating members are respectively fixed on the two adjusting members to adjust the valve core to the valve body The sliding distance of the body, thereby achieving the conduction and closure of the air inlet and the air outlet. The control valve of claim 1, wherein the adjusting member is a face cam, and includes a main body portion and a cam portion formed on a periphery of an end surface of the main body portion, wherein the cam portion abuts against one end of the valve body. The control valve of claim 2, wherein the valve core has a cylindrical shaft shape, and includes a valve shaft and a plurality of sealing rings that are tightly sleeved or protruded from the valve shaft in the axial direction, and correspondingly At least one valve joint is formed on the valve shaft, and the valve joint portion is oppositely recessed to form a conductive groove on two sides of the valve shaft in the radial direction to connect the air inlet to the air outlet when the control valve is in the conductive state. The control valve of claim 2, wherein the control valve further comprises two clamping covers, which are respectively fixedly mounted on the outer sides of the two clamping plates; each holding cover is recessed with a receiving cavity, A mounting hole is formed in the bottom of the receiving cavity, and the adjusting member is rotatably received in the receiving cavity and is fixed to the two operating members by the mounting hole. The control valve of claim 4, wherein a limit groove is respectively recessed at a position corresponding to the arc-shaped guide hole on the outer periphery of the main body portion of the adjusting member, and the clamping cover is correspondingly adjusted. A locking hole is formed in the limiting slot of the component, and a locking steel ball is elastically mounted in the locking hole to lock the adjusting component relative to the clamping cover at the position of the two limiting slots. The control valve of claim 1, wherein the operating member comprises an operating handle and a pivoting portion disposed at an end of the operating handle, the pivoting portion is fixed to the adjusting member; the valve body is adjacent to the inlet Two sides of the port are also provided with two air outlets communicating with the valve hole. A control valve includes a valve body and a valve core, a valve chamber is formed in the valve body, and an air inlet and an air outlet communicating with the valve chamber are formed on a circumferential side of the valve body, and the valve core is movably mounted in the valve cavity of the valve body The improvement is that the control valve further includes two clamping plates and two adjusting members, wherein the two clamping plates are respectively fixedly disposed at two ends of the valve body, and each of the clamping plates is correspondingly provided with a guiding hole through the valve core, and the valve The two ends of the core pass through the guiding holes of the clamping plate, and a guiding post is protruded from a side of the clamping plate away from the one side of the valve body, and the two adjusting members are respectively disposed opposite to the two clamping plates. The outer side of the valve body is rotatably connected to the two ends of the valve core, and each of the adjusting members has an arc-shaped guiding hole extending in the axial direction; the guiding post is correspondingly extended and movably mounted on the curved guiding hole The two adjusting members adjust the sliding distance of the valve core in the valve body relative to the valve body, thereby achieving the conduction and closing of the air inlet and the air outlet. The control valve of claim 7, wherein the adjusting member is a face cam, and includes a main body portion and a cam portion formed on a periphery of an end surface of the main body portion, the cam portion correspondingly abutting the valve core One end includes a convex portion and a concave portion opposite to the convex portion.