CN116697072A

CN116697072A - Gate valve convenient to adjust

Info

Publication number: CN116697072A
Application number: CN202310729032.4A
Authority: CN
Inventors: 陈律羽; 沈蓉蓉; 陈久文; 周炳龙
Original assignee: Zhengyuan Valve Group Co ltd
Current assignee: Zhengyuan Valve Group Co ltd
Priority date: 2023-06-19
Filing date: 2023-06-19
Publication date: 2023-09-05

Abstract

The application discloses a gate valve convenient to adjust, which comprises a valve body, a valve cover, a valve plate and a valve rod, wherein a central hole for the valve rod to pass through is formed in the valve cover, one end of the valve rod is connected with the valve plate positioned in the valve body, moving blocks are symmetrically arranged on two sides of the inner wall of the valve cover corresponding to the central hole, a moving groove for the moving blocks to shrink inwards is formed in the valve cover, a first spring for driving the moving blocks to stretch out of the moving groove is arranged in the moving groove, the symmetrical moving blocks are spliced to form a threaded hole connected with the valve rod in a threaded mode, a driving block is convexly arranged on the valve rod, a wedge-shaped block abutted with the driving block is arranged at the bottom of the moving block, and when the valve needs to be opened, the driving block on the valve rod is abutted with the wedge-shaped block to shrink inwards after the threaded part of the valve rod is rotated, the valve rod is not in threaded connection with the valve cover, so that the valve plate can be driven to move upwards to a limit position in a direct lifting mode, and the valve plate adjusting efficiency is effectively improved.

Description

Gate valve convenient to adjust

Technical Field

The application relates to the field of valves, in particular to a gate valve convenient to adjust.

Background

The valve is a pipeline accessory for opening and closing a pipeline, controlling the flow direction, adjusting and controlling parameters (temperature, pressure and flow rate) of a conveying medium. According to their functions, they can be classified into gate valves, check valves, regulating valves, etc.

For example, chinese patent publication No. CN105065699B discloses a gate valve with good sealing effect. The spring arranged between the traditional left valve plate and the traditional right valve plate is replaced by the elastic metal ring, so that the phenomenon that the spring is loosened between the left valve plate and the right valve plate due to failure after long-time use can be effectively overcome. Because the inner wall with the holding chamber supports to establish and the opening of elastic metal circle upwards, just so set up and just can guarantee that elastic metal circle can apply pressure along the axis direction of runner always, so left valve plate and right valve plate can constantly receive the elastic force in order to overcome disk seat or sealed face wearing and tearing and the problem that the leakproofness that leads to is not enough to utilize valve plate cover and joint cover to carry out spacing and fixed with left valve plate and right valve plate, fixed mode is simpler and reliable, and relatively traditional gate valve sealing performance is good and long service life.

When the valve is required to be opened in the scheme, the valve rod is driven to rotate by rotating the hand wheel, the valve rod and the valve cover are in threaded connection to continuously drive the valve plate to move upwards to realize opening, the valve plate is required to be lifted to the limit when the valve is required to be opened to the maximum state, the hand wheel is required to be continuously rotated during the process, and the conditions of low adjusting speed and low adjusting efficiency exist and are required to be further perfected.

Disclosure of Invention

In order to further improve the adjusting efficiency, the application provides a sluice valve convenient to adjust.

The application provides a gate valve convenient to adjust, which adopts the following technical scheme:

the utility model provides a gate valve convenient to adjust, includes valve body, valve gap, valve plate and valve rod, set up the centre bore that supplies the valve rod to pass on the valve gap, valve rod one end is connected with the valve plate that is located the valve body, the inner wall bilateral symmetry of valve gap corresponding centre bore is provided with the movable block, set up the movable groove that supplies the movable block to contract in the valve gap, be provided with in the movable groove and order about the movable block to stretch out the first spring of movable groove, the symmetry the movable block concatenation forms the screw hole with valve rod threaded connection, the valve rod epirelief is equipped with the drive block, the bottom of movable block has the wedge with the drive block butt, the drive block moves contact wedge upward and orders about the movable block and move towards the movable inslot direction.

Through adopting above-mentioned technical scheme, when needing to open the valve, through rotating valve rod screw thread part and shifting up the back, drive piece butt wedge on the valve rod drives the movable block in the indent and moves the inslot, and the valve rod no longer with valve gap threaded connection this moment can directly lift the mode and drive the valve plate to move up to extremely limit position, need not to rotate always to drive the valve plate to move up slowly, effectively improves and drives the valve plate to move up and lets the valve in the governing efficiency of full open state.

Optionally, the driving block is horizontally and slidably connected to the valve rod, a sliding groove for the driving block to slide and retract is formed in the valve rod, a second spring for driving the driving block to retract into the sliding groove is arranged in the sliding groove, and a driving piece for driving the driving block to extend outwards is arranged on the valve rod.

Through adopting above-mentioned technical scheme, can keep the drive piece in the indent in the spout with the help of the second spring, can not drive the movable block and remove when the valve rod rotates the upward movement this moment, the lift of valve plate still can be stable relies on threaded connection's valve rod to rotate and realize this moment, is applicable to the valve plate and need not the condition that moves up by a wide margin, when needing to drive the outer valve rod of drive piece, realizes with the help of the driving piece.

Optionally, the driving piece includes vertical sliding connection in the valve rod, the gliding vertical hole of confession montant has been seted up at the valve rod center, the top that the valve rod was worn out on the montant top forms the operation end, the montant bottom is located the vertical hole, driving piece one end penetrates in the vertical hole and the bottom has the driving surface of slope, the montant is located the protruding lug that is used for the butt driving surface to order about driving piece protrusion spout that is located the lateral wall in vertical hole.

Through adopting above-mentioned technical scheme, carry the montant upward, the lug butt on the montant drives the driving surface on the driving piece and can order about the driving piece to stretch out the valve rod, simple structure and convenient operation.

Optionally, jack and peg graft in the jack have been seted up to the top lateral wall of montant, when the jack exceeds the valve rod top, the drive piece protrusion spout.

Through adopting above-mentioned technical scheme, when carrying the valve rod and letting the driving piece be in the state of protruding spout, the jack is in the outer state of leaking this moment, inserts the spacer pin in the jack and can carry out spacingly to the valve rod, need not the staff and carries the valve rod always, and is convenient laborsaving.

Optionally, vertical sliding connection has the inserted bar on the valve gap, the one end of inserted bar penetrates in the removal inslot, offer on the movable block with inserted bar complex slot, be provided with the linkage piece of linkage both synchronous motion between inserted bar and the montant.

Through adopting above-mentioned technical scheme, the cooperation of inserted bar and slot improves the stability of movable block, lets valve rod threaded connection's stability better, when needs shift up the valve plate by a wide margin and carry out quick adjustment, and the montant shifts up and drives the synchronous upward movement of inserted bar through the linkage piece, releases the spacing to the movable block, only need lift the spacing dismantlement of movable block and drive block protrusion valve rod of synchronous realization of an operation of montant, and the operation is more convenient.

Optionally, the linkage piece is the stay cord, the one end and the montant of stay cord are fixed, and the other end is fixed with the inserted bar.

Through adopting above-mentioned technical scheme, the in-process that the montant moved up is with the help of stay cord pulling inserted bar synchronous upward movement, and the inserted bar can be inserted in the slot under self gravity effect when the montant moved down and realize the reduction, simple structure well realizes.

Optionally, the top of montant has handheld pole, handheld pole radially sets up along the valve rod, the length of handheld pole is greater than the aperture of perpendicular hole.

Through adopting above-mentioned technical scheme, handheld pole provides the impetus and is convenient for hold and order about the montant to reciprocate, and handheld pole also can play limiting displacement to the downmovement of montant moreover, avoids the montant top to shrink into the condition that leads to bad operation in the vertical hole.

Optionally, the bottom in vertical hole is provided with the third spring, third spring one end is fixed with vertical hole diapire, and the other end is fixed with the montant, the third spring drives the montant to move down and resets to lug and drive face separation.

Through adopting above-mentioned technical scheme, the third spring plays the effect that moves down to reset to the montant, when not providing the drive power that provides to the montant, the montant can be stable be arranged in the vertical hole.

Optionally, the centre bore upper portion is filled with the filler, the last plug of valve gap has the gland, be provided with the clamp plate that compresses tightly the gland on the valve gap, the mounting groove has been seted up to the symmetry on the valve rod lateral wall, it has spacing to articulate in the mounting groove, when spacing turns out to support on the clamp plate from the mounting groove, the valve plate rises to the fully open state.

Through adopting above-mentioned technical scheme, after lifting the valve rod and making the valve plate be in the state of fully opening, can be with spacing upset support on the clamp plate to keep the valve rod current position, need not artificial hand always, the operation is laborsaving convenient more.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the valve plate needs to be moved up to achieve the full-open state of the valve, the vertical rod is lifted up to enable the driving block to extend out of the valve rod, at the moment, when the valve rod is rotated to move up, the driving block drives the moving block to retract into the moving groove, the valve rod is disconnected with the valve cover through threads, and the valve rod and the valve plate can be lifted up directly, so that the adjusting efficiency is improved effectively;

2. the movable block can be stably in a use state by virtue of the inserted link and the slot, when the threaded connection of the valve rod needs to be released, the inserted link is synchronously moved out of the slot in the process of lifting the vertical rod, and the release of the movable block is realized without redundant operation synchronization, so that the operation is convenient and quick;

3. the vertical rod can be inserted into the jack for limiting after being lifted up by means of the limiting pin, and the limiting rod can be outwards turned and supported on the pressing plate when the valve rod is lifted up to the full opening state of the valve plate, so that the operation is more labor-saving without being lifted up by people.

Drawings

Fig. 1 is an overall structural diagram of an embodiment of the present application.

Fig. 2 is an enlarged view at a in fig. 1.

Fig. 3 is an enlarged view at B in fig. 1.

Reference numerals illustrate:

1. a valve body; 2. a valve cover; 3. a valve stem; 4. a valve plate; 5. a water inlet; 6. a water outlet; 7. a central bore; 8. a packing gland; 9. a pressing plate; 10. a hand wheel; 11. a moving block; 12. a moving groove; 13. wedge blocks; 14. a threaded hole; 15. a first spring; 16. a driving block; 17. a chute; 18. a second spring; 19. a vertical rod; 20. a vertical hole; 21. a driving surface; 22. a bump; 23. a jack; 24. a third spring; 25. a hand-held lever; 26. a rod; 27. a slot; 28. a pull rope; 29. a mounting groove; 30. and a limit strip.

Detailed Description

The application is described in further detail below with reference to fig. 1-2.

The embodiment of the application discloses a gate valve convenient to adjust.

As shown in FIG. 1, a gate valve convenient to adjust, including valve body 1, valve gap 2, valve rod 3 and valve plate 4, the both sides of valve body 1 have water inlet 5 and delivery port 6 respectively, valve rod 3 is vertical to be set up and one end passes valve gap 2 and is located the valve plate 4 rotation of valve body 1 and be connected, valve gap 2 passes through bolted connection with valve body 1 and is fixed, set up the centre bore 7 that supplies valve rod 3 to pass on valve gap 2, it improves the leakproofness to fill with the packing between valve rod 3 and the centre bore 7 inner wall, upper end at centre bore 7 has connect packing gland 8, compact packing with the help of packing gland 8 in order to ensure its leakproofness, still be provided with the clamp plate 9 that compresses tightly packing gland 8 on the valve gap 2, the top of valve rod 3 is provided with hand wheel 10 in order to rotate valve rod 3 realization to the drive of valve plate 4.

As shown in fig. 1 and 2, symmetrical moving blocks 11 are arranged on the side walls of two sides of the lower part of the central hole 7, and one sides of the moving blocks 11 are concave and mutually spliced into threaded holes 14 which are in threaded connection with the valve rod 3, so that the valve rod 3 can gradually move upwards by rotating the valve rod 3, and the valve rod 3 moves upwards to drive the valve plate 4 at the bottom to move upwards to realize the opening of the valve; a moving groove 12 for horizontally sliding is formed at the position of the valve cover 2 corresponding to the moving block 11, a first spring 15 for driving the moving block 11 to move out of the moving groove 12 is arranged in the moving groove 12, the two moving blocks 11 are spliced into a threaded hole 14 by means of the first spring 15 to be connected with the valve rod 3, one end of the first spring 15 is fixed with the moving block 11, and the other end is fixed with the bottom of the moving groove 12.

As shown in fig. 1 and 2, the bottom of the moving block 11 is provided with a wedge-shaped block 13 and forms an inclined plane, the inclined plane is located at one side close to the valve rod 3, meanwhile, two sides of the bottom end of the valve rod 3 are provided with driving blocks 16, two sides of the bottom of the valve rod 3 are provided with sliding grooves 17 for the driving blocks 16 to slide horizontally, the driving blocks 16 can be contained in the sliding grooves 17, the sliding grooves 17 are internally provided with second springs 18 for driving the driving blocks 16 to retract into the sliding grooves 17, one ends of the second springs 18 are fixed with the driving blocks 16, the other ends of the second springs are fixed with the bottom wall of the sliding grooves 17, and driving pieces for driving the driving blocks 16 to protrude out of the sliding grooves 17 are arranged on the valve rod 3.

As shown in fig. 2, the driving piece comprises a vertical rod 19 vertically connected to the valve rod 3 in a sliding manner, a vertical hole 20 for the vertical rod 19 to vertically slide is formed in the center of the valve rod 3, the top end of the vertical hole 20 penetrates through and the bottom end of the vertical rod is closed, the top end of the vertical rod 19 penetrates out of the vertical hole 20 to form an operation end, one end of the driving block 16 penetrates into the vertical hole 20 and the bottom of the driving block is provided with an inclined driving surface 21, a lug 22 for being abutted with the driving surface 21 is convexly arranged at the bottom end of the vertical rod 19, and when the vertical rod 19 moves upwards, the lug 22 is abutted with the driving surface 21 to drive the end part of the driving block 16 to protrude out of the chute 17; simultaneously, a jack 23 is formed in one side of the top of the vertical rod 19, the jack 23 is used for inserting a limiting pin, when the vertical rod 19 is lifted up to drive the driving block 16 to protrude out of the sliding groove 17, the position of the jack 23 moves out of the vertical hole 20, and then the limiting pin can be laterally inserted into the jack 23, and part of the limiting pin is located on the end face of the top end of the valve rod 3 and supported outside the jack 23, so that the limiting of the vertical rod 19 is realized and the current state is stably kept.

As shown in fig. 2, the bottom of the vertical hole 20 is provided with a third spring 24, one end of the third spring 24 is fixed with the bottom wall of the vertical hole 20, the other end of the third spring 24 is fixed with the bottom end of the vertical rod 19, the third spring 24 is used for driving the vertical rod 19 to move downwards and reset to the position that the convex block 22 is not abutted against the driving surface 21 any more, the stability of the vertical rod 19 in the vertical hole 20 is improved, the top end of the vertical rod 19 is provided with a handheld rod 25, the handheld rod 25 is arranged along the radial direction and has a length greater than the aperture of the vertical hole 20, the handheld rod 25 provides an acting point to facilitate handheld lifting, and the top end of the vertical rod 19 can be prevented from being retracted into the vertical hole 20 to be difficult to grasp.

As shown in fig. 2, a plug rod 26 is vertically and slidably connected to the top side wall of the corresponding moving groove 12 in the valve cover 2, meanwhile, a slot 27 matched with the plug rod 26 is formed in the top of the moving block 11, and the plug rod 26 and the plug slot 27 limit the position of the moving block 11, so that the moving block 11 stably maintains the current state, and the stability of threaded connection of the valve rod 3 and the threaded hole 14 is improved; in addition, a linkage part for synchronously linking the two is arranged between the inserted link 26 and the vertical rod 19, in this embodiment, the linkage part comprises a pull rope 28, one end of the pull rope 28 is fixed with the vertical rod 19, the other end of the pull rope is fixed with the vertical rod 19, the inserted link 26 is pulled to move upwards by the pull rope 28 in the process of moving upwards the vertical rod 19, the limit of the matched inserted link 26 and the slot 27 is synchronously released, and when the vertical rod 19 moves downwards, the inserted link 26 moves downwards under the self gravity and is inserted into the slot 27 to reset.

As shown in fig. 1 and 3, mounting grooves 29 are formed in two symmetrical side walls of the middle part of the valve rod 3, a limit bar 30 is arranged in the mounting grooves 29, the middle part of the top end of the limit bar 30 is rotationally connected in the mounting grooves 29, the bottom end of the limit bar 30 protrudes out of the side wall of the valve rod 3 through rotating the limit bar 30, so that when the valve plate 4 is at a full-open limit position after the valve rod 3 is lifted up, the limit bar 30 can be turned out, the limit bar 30 is supported on the pressing plate 9 to prevent the valve rod 3 and the valve plate 4 from falling, the valve rod 3 is not required to be lifted up all the time during operation, and the valve is always in a full-open stable state.

The working principle of the embodiment of the application is as follows: when the valve plate 4 needs to be partially opened, the valve rod 3 is driven to rotate by rotating the hand wheel 10, and the valve rod 3 is gradually moved upwards in threaded connection with the threaded hole 14 of the valve cover 2, so that the valve plate 4 is gradually driven to move upwards to realize the opening of the valve; when the valve plate 4 is required to be moved up to the limit position, namely, the valve is in the fully-opened state, the vertical rod 19 is lifted up, the lug 22 at the bottom end of the vertical rod 19 is abutted against the driving surface 21 to drive the driving block 16 to protrude out of the sliding groove 17 in the upward movement process, meanwhile, the pull rope 28 pulls the inserting rod 26 to be moved up to be separated from the inserting groove 27, the limit of the moving block 11 is released, then the limiting pin is inserted into the inserting hole 23 to limit the vertical rod 19, after the valve rod 3 is properly rotated, the driving block 16 is abutted against the wedge block 13 to drive the moving block 11 to retract inwards towards the moving groove 12, at the moment, the valve rod 3 is not in threaded connection with the threaded hole 14 of the valve cover 2, the valve rod 3 and the valve plate 4 can be directly lifted up to the limit position, and then the limiting strip 30 is turned out to be supported on the pressing plate 9, and the valve plate 4 is rapidly moved up to complete the adjustment of the fully-opened state.

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims

1. The utility model provides a gate valve convenient to adjust, includes valve body (1), valve gap (2), valve plate (4) and valve rod (3), set up centre bore (7) that supply valve rod (3) to pass on valve gap (2), valve rod (3) one end is connected with valve plate (4) that are located valve body (1), its characterized in that: the valve cover (2) is provided with movable blocks (11) corresponding to the two sides of the inner wall of the center hole (7) symmetrically, a movable groove (12) for the movable blocks (11) to shrink inwards is formed in the valve cover (2), a first spring (15) for driving the movable blocks (11) to stretch out of the movable groove (12) is arranged in the movable groove (12), the movable blocks (11) are symmetrically spliced to form threaded holes (14) in threaded connection with the valve rod (3), driving blocks (16) are convexly arranged on the valve rod (3), wedge-shaped blocks (13) abutted with the driving blocks (16) are arranged at the bottom of the movable blocks (11), and the driving blocks (16) move upwards to contact the wedge-shaped blocks (13) to drive the movable blocks (11) to move towards the inner direction of the movable groove (12).

2. A gate valve for facilitating adjustment according to claim 1, wherein: the driving block (16) is horizontally and slidably connected to the valve rod (3), a sliding groove (17) for enabling the driving block (16) to slide inwards is formed in the valve rod (3), a second spring (18) for driving the driving block (16) to retract into the sliding groove (17) is arranged in the sliding groove (17), and a driving piece for driving the driving block (16) to extend outwards is arranged on the valve rod (3).

3. A gate valve for facilitating adjustment according to claim 2, wherein: the driving piece comprises a vertical rod (19) which is vertically and slidably connected in the valve rod (3), a vertical hole (20) for the sliding of the vertical rod (19) is formed in the center of the valve rod (3), an operation end is formed by penetrating out of the top of the valve rod (3) from the top of the vertical rod (19), the bottom end of the vertical rod (19) is located in the vertical hole (20), one end of a driving block (16) penetrates into the vertical hole (20) and the bottom end of the driving block is provided with an inclined driving surface (21), and a convex block (22) for being abutted against the driving surface (21) to drive the driving block (16) to protrude out of the sliding groove (17) is convexly arranged on the side wall of the vertical rod (19) located in the vertical hole (20).

4. A gate valve for facilitating adjustment according to claim 3, wherein: the side wall of the top end of the vertical rod (19) is provided with a jack (23) and a limiting pin is inserted into the jack (23), and when the jack (23) is higher than the top end of the valve rod (3), the driving block (16) protrudes out of the sliding groove (17).

5. A gate valve for facilitating adjustment according to claim 3 or 4, wherein: the vertical sliding connection has inserted bar (26) on valve gap (2), in one end of inserted bar (26) penetrates to remove groove (12), offer on movable block (11) with inserted bar (26) complex slot (27), be provided with the linkage piece of both synchronous removal of linkage between inserted bar (26) and montant (19).

6. The adjustable gate valve of claim 5, wherein: the linkage piece is a pull rope (28), one end of the pull rope (28) is fixed with the vertical rod (19), and the other end of the pull rope is fixed with the inserted link (26).

7. The adjustable gate valve of claim 4, wherein: the top of montant (19) has handheld pole (25), handheld pole (25) are along valve rod (3) radial setting, the length of handheld pole (25) is greater than the aperture of perpendicular hole (20).

8. The adjustable gate valve of claim 7, wherein: the bottom of the vertical hole (20) is provided with a third spring (24), one end of the third spring (24) is fixed with the bottom wall of the vertical hole (20), the other end of the third spring is fixed with the vertical rod (19), and the third spring (24) drives the vertical rod (19) to move downwards and reset to be separated from the driving surface (21) by a lug (22).

9. A gate valve for facilitating adjustment according to claim 1, wherein: the packing is filled on the upper portion of the center hole (7), a packing gland (8) is plugged on the valve cover (2), a pressing plate (9) for pressing the packing gland (8) is arranged on the valve cover (2), mounting grooves (29) are symmetrically formed in the side wall of the valve rod (3), limiting strips (30) are hinged in the mounting grooves (29), and when the limiting strips (30) are turned out from the mounting grooves (29) to be supported on the pressing plate (9), the valve plate (4) rises to a full-open state.