CN215172412U

CN215172412U - Gate valve with buffer structure valve

Info

Publication number: CN215172412U
Application number: CN202120657572.2U
Authority: CN
Inventors: 汤裕浩
Original assignee: Junpin Group Co ltd
Current assignee: Junpin Group Co ltd
Priority date: 2021-03-31
Filing date: 2021-03-31
Publication date: 2021-12-14
Anticipated expiration: 2031-03-31

Abstract

The utility model discloses a gate valve with buffer structure valve, the water-cooled double-layer valve comprises a valve body, the valve pocket is seted up to the lower position in the valve pocket, the case is connected to the valve pocket internal rotation, import and export are seted up respectively at the valve body both ends, set up the runner in the valve body, the runner includes two straight shape portions and two flaring portions, two the flaring portion communicates import and export respectively. The utility model discloses set up valve body buffering subassembly in the valve body, when rivers get into the runner, can receive the influence of buffering leaf, and then make the velocity of water flow slow down, and buffer the leaf simultaneously and rotate under the water flow effect, make the velocity of water flow gradually return to normal velocity of flow, play the cushioning effect, avoid the too big condition of valve body pressure, buffer the leaf and rotate the back simultaneously, the velocity of flow can return normally, the case buffering subassembly has been set up in the case, case buffering subassembly forms a conical runner, rivers receive the influence of spoke, play the velocity of flow cushioning effect, avoid the case to produce the aversion because of the too big phenomenon of pressure.

Description

Gate valve with buffer structure valve

Technical Field

The utility model relates to a gate valve equipment technical field specifically is a gate valve with buffer structure valve.

Background

The gate valve is a shutter, the movement direction of the shutter is vertical to the fluid direction, and the gate valve can only be fully opened and fully closed and cannot be adjusted and throttled. Gate valves are sealed by the contact of the valve seat and gate plate, and the sealing surface is usually welded with metal materials to increase wear resistance, such as 1Cr13, STL6, stainless steel, etc. The gate plate is divided into a rigid gate plate and an elastic gate plate according to the difference of the gate plate. When the open-close type gate valve is opened, water flow suddenly rushes in, larger pressure can be generated, and the valve body and the valve core are easy to damage.

To this, chinese utility model patent that the grant bullets number is CN202812382U discloses a ball valve disk seat with buffer function, this disk seat includes the disk seat body, be equipped with the valve pocket in the disk seat, install the case in the valve pocket, the disk seat is equipped with a diameter and is greater than the cushion chamber of valve pocket diameter at the valve pocket front end, be equipped with the skew wall between the inner wall of cushion chamber inner wall and disk seat entry end, be equipped with the step between cushion chamber and the valve pocket, fixed mounting has the spring on the step, the tip fixed mounting of spring has a calathiform baffle, it has a plurality of through-holes to distribute on the calathiform baffle, the edge of calathiform baffle supports the top on the skew wall through the spring.

This disk seat adopts and sets up the cushion chamber in the disk seat to set up the design that supports the bowl-shaped baffle of propping on the skew wall through the spring in the cushion chamber, alleviated the medium effectively and to the impact of ball valve, but after the gate valve opened a period, the medium velocity of flow has been stabilized, bowl-shaped baffle can seriously influence the medium velocity of flow this moment, and this disk seat case department does not have buffer structure, when the medium passes through the case originally, the case can receive great pressure, the phenomenon that the case shifted takes place easily, influence the leakproofness of case department.

To this end, we propose a gate valve having a valve with a buffer structure to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a gate valve with buffer structure valve to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a gate valve with a buffering structure comprises a valve body, wherein a valve cavity is arranged at the middle lower position in the valve body, a valve core is rotatably connected in the valve cavity, an inlet and an outlet are respectively arranged at two ends of the valve body, a flow passage is arranged in the valve body and comprises two straight parts and two flared parts, the two flared parts are respectively communicated with the inlet and the outlet, the two straight parts are communicated with the two flared parts, a valve body buffering component is fixedly connected at the joint of the flared parts and the straight parts, a valve core flow passage is arranged in the valve core, a valve core buffering component is fixedly connected in the valve core flow passage, the valve body buffering component comprises a plurality of fixing rods fixedly connected at the joint of the flared parts and the straight parts, a buffering blade is rotatably sleeved on the fixing rods, one side, close to the inlet, of the buffering blade is of a cambered surface structure, the fixing rods are fixedly connected with torsional springs at the rotatably sleeved positions of the buffering blade, and the valve core buffering component comprises a first circular ring fixedly connected at one end, close to the inlet, of the valve core flow passage, one side of the first circular ring, which is far away from the inlet, is fixedly connected with one end of a plurality of spokes, the other end of each spoke is fixedly connected with a second circular ring, and the diameter of each second circular ring is smaller than that of the first circular ring.

Preferably, the top surface of the valve body is fixedly connected with a fixed table, the top surface of the valve core is fixedly connected with a valve rod, the valve rod is rotatably sleeved in the fixed table, the top end of the valve rod is fixedly connected with a rotating block, the rotating block is rotatably sleeved at the end part of the fixed table, the top end of the rotating block is fixedly connected with a pull rod, and a limiting assembly is arranged on the outer side of the rotating block.

Preferably, the limiting assembly comprises a groove formed in the outer side wall of the rotating block, a spherical insertion block is sleeved in the groove in a sliding mode, the spherical insertion block is located in the groove and fixedly connected with one end of a spring, the other end of the spring is fixedly connected with the side wall of the groove, a plurality of slots are formed in the inner side face of the top end of the fixed platform, and the spherical insertion block is inserted into any one of the slots.

Preferably, two connecting flanges are fixedly connected to two ends of the valve body, and annular bump structures are arranged at the end parts of the inlet and the outlet of the valve body.

Preferably, the inner side surface of the fixed table is fixedly connected with a filler, and the filler is contacted with the valve rod.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses set up valve body buffering subassembly in the valve body, when rivers get into the runner, can receive the influence of buffering leaf, and then make the velocity of water flow slow down, and buffer the leaf simultaneously and rotate under the water flow effect, make the velocity of water flow gradually return to normal velocity of flow, play the cushioning effect, avoid the too big condition of valve body pressure, buffer the leaf and rotate the back simultaneously, the velocity of flow can return normally, the case buffering subassembly has been set up in the case, case buffering subassembly forms a conical runner, rivers receive the influence of spoke, play the velocity of flow cushioning effect, avoid the case to produce the aversion because of the too big phenomenon of pressure.

Drawings

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

FIG. 2 is an enlarged schematic view of the cross-sectional structure of the present invention;

FIG. 3 is an enlarged structural diagram of the valve body buffer assembly of the present invention;

fig. 4 is the structure enlarged structure schematic diagram of the valve core buffering assembly of the present invention.

In the figure: the valve comprises a valve body 1, a valve cavity 2, a valve core 3, a valve core 4, an outlet 5, a flow passage 6, a valve core flow passage 7, a valve body buffer assembly 8, a valve core buffer assembly 9, a valve rod 10, a rotating block 11, a limiting assembly 12, a pull rod 13, a fixing table 14, a filler 15, a connecting flange 16, a straight part 61, a flared part 62, a fixing rod 81, a buffer blade 82, a torsion spring 83, a first circular ring 91, a spoke 92, a second circular ring 93, a slotted groove 121, a spherical insert 122, a spring 123 and an insert groove 124.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a gate valve with buffer structure valve, including valve body 1, valve chamber 2 is seted up to the middle and lower position in valve body 1, the rotation is connected case 3 in the valve chamber 2, import 4 and export 5 are seted up respectively at valve body 1 both ends, set up runner 6 in the valve body 1, runner 6 includes two straight portions 61 and two flared portions 62, two flared portions 62 communicate import 4 and export 5 respectively, two straight portions 61 communicate two flared portions 62, flared portion 62 and straight portion 61 junction rigid coupling valve body buffering subassembly 8, through setting up flared portion 62 and straight portion 61, make rivers flow in straight portion 61 through flared portion 62 when opening the valve, flared portion 62 diameter is greater than straight portion 61, straight portion 61 can play certain cushioning effect this moment.

Referring to fig. 2, a valve core flow passage 7 is formed in the valve core 3, and a valve core cushion assembly 9 is fixedly connected in the valve core flow passage 7; two flange 16 of 1 both ends position rigid coupling of valve body, valve body 1 are located import 4 and export 5 tip positions and all offer annular lug structure, will through flange 16 the utility model discloses be connected to required position.

Referring to fig. 2, the top surface of the valve body 1 is fixedly connected with a fixed table 14, the top surface of the valve core 3 is fixedly connected with a valve rod 10, the valve rod 10 is rotatably sleeved in the fixed table 14, the top end of the valve rod 10 is fixedly connected with a rotating block 11, the rotating block 11 is rotatably sleeved at the end of the fixed table 14, the top end of the rotating block 11 is fixedly connected with a spanner 13, the inner side surface of the fixed table 14 is fixedly connected with a filler 15, the filler 15 contacts the valve rod 10, the outer side of the rotating block 11 is provided with a limiting component 12, the valve core 3 is driven to rotate by rotating the spanner 13, the communication condition of the flow channel 6 and the valve core flow channel 7 is further adjusted, and throttling or opening operation is performed.

Referring to fig. 3, the valve body buffering assembly 8 includes a plurality of fixing rods 81 fixedly connected to the joint of the flared portion 62 and the straight portion 61, a buffering leaf 82 is rotatably sleeved on the fixing rod 81, one side of the buffering leaf 82 close to the inlet 4 is of an arc structure, the fixing rod 81 and the buffering leaf 82 are rotatably sleeved with a torsion spring 83, when water flows into the flow passage 6, the torsion spring is affected by the buffering leaf 82, so that the flow rate of the water flows is slowed, and meanwhile, the buffering leaf 82 rotates under the action of the water flows, so that the flow rate of the water flows gradually returns to a normal flow rate, thereby playing a buffering role, avoiding the condition that the pressure of the valve body 1 is too large, and meanwhile, after the buffering leaf 82 rotates, the flow rate returns to a normal flow rate.

Referring to fig. 4, the valve core buffering assembly 9 includes a first ring 91 fixedly connected to one end of the valve core flow channel 7 close to the inlet 4, one side of the first ring 91 far from the inlet 4 is fixedly connected to one end of a plurality of spokes 92, the other end of the plurality of spokes 92 is fixedly connected to a second ring 93, the diameter of the second ring 93 is smaller than that of the first ring 91, the valve core buffering assembly 9 forms a tapered flow channel, and water flow is influenced by the spokes 92 to play a role in buffering flow velocity and avoiding an excessive pressure inside the valve core.

Referring to fig. 2, the position limiting assembly 12 includes a slot 121 disposed on an outer side wall of the rotating block 11, a spherical insertion block 122 is slidably sleeved in the slot 121, the spherical insertion block 122 is located in the slot 121, one end of the spherical insertion block 122 is fixedly connected to one end of a spring 123, the other end of the spring 123 is fixedly connected to a side wall of the slot 121, a plurality of slots 124 are disposed on an inner side surface of a top end of the fixed platform 14, the spherical insertion block 122 is inserted into any one of the slots 124, when the lever 13 is rotated, the spherical insertion block 122 is inserted into the corresponding slot 124, and the lever is prevented from moving after being rotated.

The working principle is as follows: the utility model discloses a flange 16 will the utility model discloses be connected to required position, later carry out the operation of throttle or open the valve through rotating pull rod 13. The utility model discloses set up valve body buffering subassembly 8 in the valve body, when rivers get into runner 6, can receive the influence of buffering leaf 82, and then make the velocity of water flow slow down, and buffering leaf 82 rotates under the rivers effect simultaneously, make the velocity of water flow gradually return to the normal velocity of flow, play the cushioning effect, avoid the too big condition of valve body 1 pressure, cushion leaf 82 simultaneously and rotate the back, the velocity of flow can return normally, case buffering subassembly 9 has been set up in case 3, case buffering subassembly 9 forms a conical runner, rivers receive spoke 92's influence, play the velocity of flow cushioning effect, avoid the case to produce the aversion because of the too big phenomenon of pressure.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a gate valve with buffer structure valve, includes valve body (1), valve chamber (2) are seted up to the lower position in valve body (1), case (3), its characterized in that are connected to the internal rotation of valve chamber (2):

an inlet (4) and an outlet (5) are respectively formed in two ends of the valve body (1), a flow channel (6) is formed in the valve body (1), the flow channel (6) comprises two straight parts (61) and two flared parts (62), the two flared parts (62) are respectively communicated with the inlet (4) and the outlet (5), the two straight parts (61) are communicated with the two flared parts (62), the joint of the flared parts (62) and the straight parts (61) is fixedly connected with a valve body buffering component (8), a valve core flow channel (7) is formed in the valve core (3), and a valve core buffering component (9) is fixedly connected in the valve core flow channel (7);

the valve body buffer assembly (8) comprises a plurality of fixing rods (81) fixedly connected at the joint of the flared part (62) and the straight part (61), buffer blades (82) are rotatably sleeved on the fixing rods (81), one side of each buffer blade (82) close to the inlet (4) is of an arc surface structure, and torsional springs (83) are fixedly connected at the rotatably sleeved positions of the fixing rods (81) and the buffer blades (82);

the valve core buffering component (9) comprises a first circular ring (91) fixedly connected to one end, close to the inlet (4), of the valve core flow passage (7), one end, far away from the inlet (4), of the first circular ring (91) is fixedly connected to one end of a plurality of spokes (92), the other end of each spoke (92) is fixedly connected to a second circular ring (93), and the diameter of each second circular ring (93) is smaller than that of the first circular ring (91).

2. The gate valve with a buffer structure valve as claimed in claim 1, wherein: the valve body (1) top surface rigid coupling fixed station (14), case (3) top surface rigid coupling valve rod (10), valve rod (10) rotate to cup joint in fixed station (14), valve rod (10) top rigid coupling commentaries on classics piece (11), commentaries on classics piece (11) rotate to cup joint in fixed station (14) tip, commentaries on classics piece (11) top rigid coupling pull rod (13), it is provided with spacing subassembly (12) to change piece (11) outside.

3. The gate valve with a buffer structure valve according to claim 2, wherein: spacing subassembly (12) including offering fluting (121) on commentaries on classics piece (11) lateral wall, spherical inserted block (122) are cup jointed in fluting (121) slides, spherical inserted block (122) are located fluting (121) one end rigid coupling spring (123) one end, spring (123) other end rigid coupling fluting (121) lateral wall, a plurality of slots (124) are seted up to fixed station (14) top medial surface, in spherical inserted block (122) arbitrary slot (124) of pegging graft.

4. The gate valve with a buffer structure valve as claimed in claim 1, wherein: two connecting flanges (16) are fixedly connected to the two ends of the valve body (1), and annular bump structures are arranged at the end parts of the inlet (4) and the outlet (5) of the valve body (1).

5. The gate valve with a buffer structure valve according to claim 2, wherein: and the inner side surface of the fixed table (14) is fixedly connected with a filler (15), and the filler (15) is contacted with the valve rod (10).