CN210920168U - Floating type maintenance gate irrigation and drainage valve capable of being quickly opened and closed - Google Patents

Abstract

The utility model discloses a floating type maintenance gate irrigation and drainage valve of quick switch, including valve body, valve plate subassembly and valve rod, the valve plate subassembly lower extreme inserts in the valve body, valve plate subassembly upper end with the valve rod lower extreme links to each other, still including being used for driving the elevating system of valve rod up-and-down motion, elevating system includes first linking arm, two second linking arms and two support arms, the valve rod upper end with first linking arm links to each other, and two second linking arms divide locate the both ends of first linking arm, just are located between two support arms, and it has the third linking arm to articulate on the support arm, the second linking arm for the bending arm and one end with first linking arm is articulated, the other end with third linking arm one end is articulated, and the third linking arm other end is connected with the operation handle. The utility model has the advantages of simple structure, good practicability, convenient rapid switch and the like.

Description

Floating type maintenance gate irrigation and drainage valve capable of being quickly opened and closed

Technical Field

The utility model relates to a floating overhauls the gate, especially relates to a quick switch's floating overhauls gate irrigation and drainage valve.

Background

The floating type maintenance gate is one of main devices equipped in a ship lock hub project and is used as a temporary cofferdam for ship lock device maintenance, and the irrigation and drainage valve is arranged on the floating type maintenance gate. When in maintenance working condition, the floating maintenance gate is in place, and the filling and discharging valve is a switch for filling water into the door body to enable the door body to sink; and after the maintenance working condition is finished, the filling and discharging valve is opened to discharge the water in the door body. The irrigation and drainage valve is also a switch for blocking water from the outside of the lock chamber to irrigate the inside of the lock chamber. At present, most of irrigation and drainage valves adopt a screw rod form, the valve body of the irrigation and drainage valve is positioned at the bottom end of a floating type maintenance gate, the valve core bears large water pressure, and particularly when the valve is started by flowing water, the valve core bears large unilateral force, the opening is laborious, and the opening speed is slow. In addition, the air humidity of the environment where the irrigation and drainage valve is located is large, a part of the irrigation and drainage valve needs to be soaked in water, corrosion is easy to generate, the irrigation and drainage valve does not need to be used for a long time, and the valve is harder to open by twisting the screw rod.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome the not enough of prior art, provide a floating maintenance gate irrigation and drainage valve that simple structure, practicality are good, the quick switch of being convenient for.

In order to solve the technical problem, the utility model discloses a following technical scheme:

the utility model provides a floating maintenance gate irrigation and drainage valve of quick switch, includes valve body, valve plate subassembly and valve rod, the valve plate subassembly lower extreme inserts in the valve body, valve plate subassembly upper end with the valve rod lower extreme links to each other, still including being used for driving the elevating system of valve rod up-and-down motion, elevating system includes first linking arm, two second linking arms and two support arms, the valve rod upper end with first linking arm links to each other, and two second linking arms divide locate the both ends of first linking arm, just are located between two support arms, and articulated on the support arm have a third linking arm, the second linking arm for the bending arm and one end with first linking arm is articulated, the other end with third linking arm one end is articulated, and the third linking arm other end is connected with the handle.

As a further improvement of the above technical solution: and a first limiting part used for limiting the maximum rotation angle of the second connecting arm is connected between the two supporting arms.

As a further improvement of the above technical solution: when the second connecting arm is in contact with the first limiting part, one end of the second connecting arm, which is connected with the first connecting arm, is vertically arranged.

As a further improvement of the above technical solution: the support arm is arranged on a mounting seat, a second limiting part used for limiting the maximum rising height of the valve plate assembly is arranged above the valve plate assembly, a waterproof sleeve is sleeved on the periphery of the valve rod, the upper end of the waterproof sleeve is connected with the mounting seat, and the lower end of the waterproof sleeve is connected with the second limiting part.

As a further improvement of the above technical solution: the mounting seat is provided with a dustproof sleeve, the dustproof sleeve is provided with a dustproof cover, and the valve rod penetrates through the dustproof sleeve and is provided with a dustproof ring between the valve rod and the dustproof sleeve.

As a further improvement of the above technical solution: the valve plate subassembly includes two parallel arrangement's valve plate, valve body upper portion is equipped with two seal holders, two seal holder fixed connection, two the valve plate passes two one-to-one the seal holder, be equipped with the sealing member in the seal holder, two sets of seal assembly about being equipped with in the valve body.

As a further improvement of the above technical solution: the sealing assembly comprises an O-shaped sealing ring and a lip-shaped sealing ring arranged on the periphery of the O-shaped sealing ring.

As a further improvement of the above technical solution: valve interfaces which are horizontally arranged are arranged on two sides of the valve body, and a valve support is arranged below the valve interfaces.

Compared with the prior art, the utility model has the advantages of: the utility model discloses a floating type overhaul gate irrigation and drainage valve of quick switch, adopt elevating system to drive the valve rod, the valve plate subassembly goes up and down, realize the switch of irrigation and drainage valve, elevating system includes first linking arm, the second linking arm of structure of buckling, the support arm, and the third linking arm, the accessible operation handle drives the rotation of articulated shaft on the third linking arm around the support arm, drive the second linking arm by the third linking arm and rotate and go up and down, and then realize first linking arm, the lift of valve rod and valve plate subassembly, moreover, the steam generator is simple in structure, high durability, compare the switch mode of wrench movement lead screw, switching speed is faster, and is more laborsaving.

Drawings

Fig. 1 is the three-dimensional structure schematic diagram when the floating type overhaul gate irrigation and drainage valve of the quick switch of the utility model is opened.

Fig. 2 is a schematic sectional structure view of the valve body when the present invention is closed.

Fig. 3 is a schematic view of the front view structure of the lifting mechanism when the utility model is opened.

Fig. 4 is a schematic side view of the lifting mechanism of the present invention.

Fig. 5 is a schematic perspective view of the lifting mechanism when the utility model is closed.

The reference numerals in the figures denote: 1. a valve body; 11. an O-shaped sealing ring; 12. a lip-shaped seal ring; 13. a valve interface; 14. a valve support; 2. a valve plate assembly; 21. a valve plate; 3. a valve stem; 31. a waterproof sleeve; 4. a lifting mechanism; 41. a first connecting arm; 42. a second connecting arm; 43. a support arm; 44. a third connecting arm; 45. an operating handle; 46. a first limit piece; 5. a mounting seat; 51. a dust-proof sleeve; 52. a dust cover; 53. a dust ring; 6. a second limiting member; 7. a sealing seat; 71. and an upper seal member.

Detailed Description

The invention is described in further detail below with reference to the drawings and specific examples.

Fig. 1 to 5 show an embodiment of the floating type inspection gate irrigation and drainage valve of the present invention, which comprises a valve body 1, a valve plate assembly 2 and a valve rod 3, wherein the lower end of the valve plate assembly 2 is inserted into the valve body 1, the upper end of the valve plate assembly 2 is connected to the lower end of the valve rod 3, a lifting mechanism 4 for driving the valve rod 3 to move up and down is further included, the lifting mechanism 4 includes a first connecting arm 41, two second linking arms 42 and two support arms 43, the upper end of valve rod 3 links to each other with first linking arm 41, two second linking arms 42 divide and locate the both ends of first linking arm 41, and lie in between two support arms 43, it has third linking arm 44 to articulate on the support arm 43, second linking arm 42 is for buckling the arm and one end is articulated with first linking arm 41, the other end is articulated with third linking arm 44 one end, the other end of third linking arm 44 is connected with operation handle 45. In the embodiment, the handle is adopted, namely a manual switch is adopted; the second connecting arm 42 preferably takes an L-shaped configuration.

This floating overhaul gate irrigation and drainage valve of quick switch, adopt elevating system 4 to drive valve rod 3, valve plate subassembly 2 goes up and down, realize the switch of irrigation and drainage valve, elevating system 4 includes first linking arm 41, the second linking arm 42 of bending structure, support arm 43, and third linking arm 44, accessible operation handle 45 drives third linking arm 44 and rotates around the articulated shaft on the support arm 43, drive second linking arm 42 by third linking arm 44 and rotate and go up and down, and then realize first linking arm 41, the lift of valve rod 3 and valve plate subassembly 2, moreover, the steam generator is simple in structure, high durability and convenient operation, compare the on-off mode of wrench movement lead screw, switching speed is faster, and is more laborsaving.

Further, in the present embodiment, a first limiting member 46 for limiting the maximum rotation angle of the second connecting arm 42 is connected between the two supporting arms 43. The first limiting member 46 can be, for example, a plate, a rod, etc., the first limiting member 46 can limit the second connecting arm 42 to continue to rotate in the maximum opening state of the valve, so as to improve reliability, and meanwhile, the first limiting member 46 connects the two supporting arms 43 into a whole, so as to improve structural strength. As a preferable embodiment, a connecting member may be provided between the two second connecting arms 42 to integrally connect the two second connecting arms 42 for reinforcement.

Further, in the present embodiment, when the second connecting arm 42 contacts the first retaining member 46, that is, when the valve is at the maximum opening angle, the end of the second connecting arm 42 connected to the first connecting arm 41 is vertically arranged. Because the action of gravity in vertical direction can realize reverse auto-lock this moment, prevents that the operating handle 45 from rotating to the direction of self-closing, hoist mechanism's security and reliability.

Further, in this embodiment, the supporting arm 43 is disposed on a mounting base 5, the second limiting member 6 for limiting the maximum rising height of the valve plate assembly 2 is disposed above the valve plate assembly 2, that is, the second limiting member 6 and the first limiting member 46 act together to realize dual limiting, the second limiting member 6 preferably adopts a circular plate, the waterproof sleeve 31 is sleeved on the outer periphery of the valve rod 3, the upper end of the waterproof sleeve 31 is connected with the mounting base 5, and the lower end of the waterproof sleeve is connected with the second limiting member 6. Through set up waterproof sleeve 31 in valve rod 3 periphery, waterproof sleeve 31 both ends link to each other with mount pad 5, second locating part 6 respectively, can effectively separate water, prevent that water and valve rod 3 contact from producing the corrosion, prolong valve rod 3's life.

Furthermore, in the present embodiment, the installation seat 5 is provided with a dust-proof sleeve 51, the dust-proof sleeve 51 is provided with a dust-proof cover 52, the valve rod 3 is inserted into the dust-proof sleeve 51, and a dust-proof ring 53 is arranged between the valve rod 3 and the dust-proof sleeve 51. The dustproof ring 53 can prevent dust on the upper part of the valve rod 3, and the dustproof sleeve 51, the waterproof sleeve 31 and the like can provide a guiding effect on the lifting motion of the valve rod 3.

Further, in this embodiment, valve plate assembly 2 includes two parallel arrangement's valve plate 21, for example, can be double-knife valve structure, 1 upper portion of valve body is equipped with two seal receptacle 7, two seal receptacle 7 fixed connection, two valve plate 21 one-to-ones pass two seal receptacle 7, be equipped with upper seal 71 in the seal receptacle 7, be equipped with two sets of seal assembly from top to bottom in the valve body 1, as preferred technical scheme, seal assembly includes O type sealing washer 11 and locates lip seal 12 of O type sealing washer 11 periphery, through upper seal 71, reach two sets of seal assembly from top to bottom and realize valve plate 21's sealed, sealing performance is good.

Furthermore, in the present embodiment, the valve body 1 is provided with valve ports 13 arranged horizontally on two sides, a valve support 14 is arranged below the valve ports 13, and the filling and discharging valve is fixed on the installation position through the valve support 14.

The utility model discloses the operating principle of quick switch's floating maintenance gate irrigation and drainage valve is as follows:

when the valve is in a closed state, the operating handle 45 is rotated to enable the third connecting arm 44 to rotate around the hinge shaft on the supporting arm 43, and drive one end of the second connecting arm 42 to rotate around the hinge shaft between the second connecting arm 42 and the third connecting arm 44, and drive the other end of the second connecting arm 42 to rotate around the hinge shaft between the second connecting arm 42 and the first connecting arm 41, and through the rotation of the second connecting arm 42, the first connecting arm 41 and the valve rod 3 are driven to move upwards, and the valve rod 3 drives the valve plate assembly 2 to move upwards, so that the valve is opened until the valve reaches the maximum opening degree. When the maximum opening degree is reached, the first limiting member 46 limits the further rotation of the operating handle 45, and meanwhile, the second limiting member 6 can also limit the valve plate assembly 2 to continuously ascend, so that the double limiting function is achieved. The second connecting arm 42 is in a right-angle L shape, and when the valve is at the maximum opening, the valve can perform reverse self-locking due to the action of gravity in the vertical direction, so that the valve operating handle 45 is prevented from rotating in the direction of automatic closing. One end of the third connecting arm 44 is configured as an arc-shaped bent structure, which can effectively connect with the second connecting arm 42 and reinforce the end thereof.

Through the drive of valve rod 3, valve plate assembly 2 can lift or transfer, realizes that the valve opens or closes. The valve plate assembly 2 is provided with a multiple sealing structure, an upper sealing piece 71 is arranged inside the sealing seat 7 to prevent leakage at the top of the valve body 1, an O-shaped sealing ring 11 is arranged on the inner side of the valve body 1, a lip-shaped seal 12 is arranged on the outer side of the valve body to effectively prevent lateral leakage, the valve interface 13 is connected with an external connector through a bolt, one end of the external connector is arranged on the outer side of the floating type maintenance gate body, and the other end of the external connector is arranged on the inner. The valve rod 3 is arranged in the waterproof sleeve 31, so that the valve rod 3 can be prevented from contacting water, and the service life of the valve rod 3 is prolonged. The second retaining member 6 at the lower part of the valve rod 3, the mounting seat 5 at the upper part and the dust sleeve 52 all play a role in guiding the valve rod 3.

When the valve is in an open state, the operating handle 45 is rotated to rotate the third connecting arm 44 around the hinge shaft on the supporting arm 43, and drive one end of the second connecting arm 42 to rotate around the hinge shaft between the second connecting arm 42 and the third connecting arm 44, and drive the other end of the second connecting arm 42 to rotate around the hinge shaft between the second connecting arm 42 and the first connecting arm 41, so that the first connecting arm 41 and the valve rod 3 are driven to move downwards through the rotation of the second connecting arm 42, and the valve rod 3 drives the valve plate assembly 2 to move downwards, thereby closing the valve.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The technical solution of the present invention can be used by anyone skilled in the art to make many possible variations and modifications, or to modify equivalent embodiments, without departing from the scope of the technical solution of the present invention, using the technical content disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention should fall within the protection scope of the technical solution of the present invention.

Claims (8)

1. The utility model provides a quick switch's floating maintenance gate irrigation and drainage valve, includes valve body (1), valve plate subassembly (2) and valve rod (3), valve plate subassembly (2) lower extreme inserts in valve body (1), valve plate subassembly (2) upper end with valve rod (3) lower extreme links to each other its characterized in that: still including being used for driving valve rod (3) up-and-down motion's elevating system (4), elevating system (4) include first linking arm (41), two second linking arms (42) and two support arms (43), valve rod (3) upper end with first linking arm (41) link to each other, and two second linking arms (42) divide locate the both ends of first linking arm (41), and lie in between two support arms (43), and it has third linking arm (44) to go up to articulate on support arm (43), second linking arm (42) for buckle arm and one end with first linking arm (41) are articulated, the other end with third linking arm (44) one end is articulated, and the third linking arm (44) other end is connected with operation handle (45).

2. The quick-opening and closing floating service gate irrigation and drainage valve of claim 1, wherein: a first limiting part (46) used for limiting the maximum rotation angle of the second connecting arm (42) is connected between the two supporting arms (43).

3. The quick-opening and closing floating service gate irrigation and drainage valve of claim 2, wherein: when the second connecting arm (42) is in contact with the first limiting piece (46), one end of the second connecting arm (42) connected with the first connecting arm (41) is vertically arranged.

4. A quick-opening and-closing floating service gate irrigation and drainage valve according to any one of claims 1 to 3, characterized in that: support arm (43) are located on a mount pad (5), valve plate subassembly (2) top is equipped with and is used for restricting second locating part (6) of valve plate subassembly (2) maximum rise height, valve rod (3) periphery cover is equipped with waterproof sleeve pipe (31), waterproof sleeve pipe (31) upper end with mount pad (5) link to each other, the lower extreme with second locating part (6) link to each other.

5. The quick-opening and closing floating service gate irrigation and drainage valve of claim 4, wherein: be equipped with dust cover (51) on mount pad (5), be equipped with shield (52) on dust cover (51), valve rod (3) wear to locate in dust cover (51) and be equipped with dust ring (53) between valve rod (3) and dust cover (51).

6. A quick-opening and-closing floating service gate irrigation and drainage valve according to any one of claims 1 to 3, characterized in that: valve plate subassembly (2) include two parallel arrangement's valve plate (21), valve body (1) upper portion is equipped with two seal receptacle (7), two seal receptacle (7) fixed connection, two valve plate (21) one-to-one passes two seal receptacle (7), be equipped with sealing member (71) in seal receptacle (7), two sets of seal assembly about being equipped with in valve body (1).

7. The quick-opening and closing floating service gate irrigation and drainage valve of claim 6, wherein: the sealing assembly comprises an O-shaped sealing ring (11) and a lip-shaped sealing ring (12) arranged on the periphery of the O-shaped sealing ring (11).

8. The quick-opening and closing floating service gate irrigation and drainage valve of claim 6, wherein: valve interface (13) that the valve body (1) both sides were equipped with horizontal arrangement, valve interface (13) below is equipped with valve support (14).

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