CN211398675U - Magnetic locking non-return gate valve - Google Patents

Abstract

The utility model provides a magnetism locking non return gate valve belongs to valve technical field. The valve body solves the problem that the sealing performance of the existing valve body becomes poor along with the lengthening of the service time. This product includes the valve body, valve rod and disk seat, still be equipped with the flashboard that goes up and down by valve rod control between the end of intaking of valve body and the play water end, the inner chamber that supplies the flashboard to go up and down to use has between disk seat and the valve body, the mounting groove has been seted up on the inner chamber diapire, be equipped with seal assembly in the mounting groove, seal assembly is including being annular lower clutch, be annular top connection and connect the tarpaulin between top connection and lower clutch, lower clutch and mounting groove threaded connection, be located and be equipped with the annular on the flashboard outer peripheral face of intracavity, the top connection is located the annular and the top connection terminal surface supports with the annular lateral wall and leans on, the flashboard upper end still is fixed. The product has the advantage that the service life of the product is greatly prolonged because the aging of the sealing element of the valve body cannot cause water leakage.

Description

Magnetic locking non-return gate valve

Technical Field

The utility model belongs to the technical field of the valve, a gate valve is related to, especially, relate to a magnetism locking non return gate valve.

Background

The closure gate valve is more common in daily life and is used as an adjusting and closure device. The device is generally used on a front header pipe and is used in a pipeline with large flow.

Conventional gate valve mainly includes valve body, disk seat, flashboard, valve rod and opening device, and the disk seat is connected in the valve body top, is equipped with water inlet and delivery port along axial part on the valve body, and the flashboard is located between water inlet and the delivery port, and valve rod one end is passed the valve gap and is connected with the flashboard, in order to guarantee the sealed of gate valve, is equipped with the sealing member that plays sealed effect usually between valve rod and disk seat, and the hookup location also generally is provided with the sealing member between disk seat and the valve. The opening device is arranged at the upper end of the valve rod exposed outside the valve seat, and when the valve works, the opening and closing of the valve are controlled by utilizing the lifting of the flashboard, so that the connection or the disconnection of a medium in a pipeline are realized, the management of water resources is disordered usually in order to prevent the backflow of the medium from influencing the metering of a water meter of a user, and a check valve is generally arranged at the water inlet of the valve body of the gate valve. Because the sealing member is usually made of rubber, in the gate valve, along with the increase of service life, the sealing members between the valve body and the valve seat and between the valve seat and the valve rod are gradually aged due to oxidation or corrosion, and the like, so that the sealing effect between the valve body and the valve seat and between the valve seat and the valve rod is greatly reduced. With the continuous use, side leakage and the like may occur, and if the user is not aware of the side leakage or the user is not at home, the user may be seriously lost. Therefore, the problem of solving the above existing problem is that we are not ready to deal with things at present.

Disclosure of Invention

The utility model aims at the above-mentioned problem that prior art exists, a magnetism locking non return gate valve is proposed. The valve solves the technical problem that the sealing performance of the valve body becomes poor along with the prolonging of the service life.

The purpose of the utility model can be realized by the following technical proposal:

magnetic locking non return gate valve, including valve body, valve rod and disk seat, still be equipped with the flashboard that goes up and down by valve rod control between the end of intaking of valve body and the play water end, the inner chamber that supplies the flashboard to go up and down to use has between disk seat and the valve body, a serial communication port, the mounting groove has been seted up on the inner chamber diapire, be equipped with seal assembly in the mounting groove, seal assembly is including being annular lower clutch, being annular top connection and connecting the tarpaulin between top connection and lower clutch, lower clutch and mounting groove threaded connection, be located and be equipped with the annular on the flashboard outer peripheral face of intracavity, the top connection is located the annular under and the top connection terminal surface and the annular lateral wall support and lean on, the flashboard upper end is still fixed with the jump ring of.

Have the inner chamber that supplies the flashboard to go up and down to use between disk seat and the valve body, the flashboard upper end has the hole of interior screw, and the valve rod is located the inner chamber and valve rod lower extreme and internal screw thread hole threaded connection, drives the flashboard through valve rod circumferential direction and goes up and down. The connection between the valve seat and the valve body is sealed by a gasket having sealing property. The valve stem is also sealed to the valve seat by a sealing gasket. However, as time goes by, the rubber sealing gasket is inevitably aged to cause poor sealing effect, and water leakage and the like may be seriously caused to cause unnecessary loss. The water leakage of the valve body is mainly caused by the fact that water flow enters the inner cavity along the lifting and descending of the gate plate in the lifting and descending process of the gate plate, the inner cavity is filled with accumulated water, and the phenomenon of water leakage is possibly caused due to the fact that the sealing performance between the valve body and the valve seat or between the valve seat and the valve rod is reduced. Therefore, the bottom wall of the inner cavity of the product is provided with a mounting groove, and a sealing assembly is arranged in the mounting groove. The mounting groove is around the purpose that the flashboard was seted up and will pass through seal assembly with the water that enters into the inner chamber through the flashboard passageway and carry out the separation, sets up like this even the valve body does not influence the holistic leakproofness of valve body with the ageing sealing member of disk seat or valve rod and disk seat for the life-span of product obtains very big extension.

Specifically, the sealing assembly comprises an annular lower joint, an annular upper joint and a waterproof cloth connected between the upper joint and the lower joint. The lower joint is externally provided with an external thread, the inner wall of the mounting groove is provided with an internal thread, the lower joint and the mounting groove are connected and fixed through the threads, and the lower joint and the mounting groove can be assembled on the valve body conveniently. The upper joint sleeve is arranged at the upper end of the flashboard and is limited and fixed through the clamp spring, and the assembly is also convenient. The upper joint, the lower joint and the waterproof cloth are of an integrated structure, the upper joint and the lower joint are used for installation and fixation, and the waterproof cloth is used for blocking water entering the inner cavity through a channel of the lifting of the flashboard. And the tarpaulin is folding setting in the cavity, because the flashboard goes up and down to accompany the top connection also to displace, so need possess certain elasticity and the tarpaulin of sufficient length to satisfy the oscilaltion of flashboard to reach and do not influence the use of valve.

In foretell magnetism locking non return gate valve, the tank bottom of annular still opens curved notch, the jump ring card is established in the notch and the jump ring downside forms with the top connection up end and supports and lean on.

The top connection is fixed in the flashboard upper end through the jump ring, sets up like this and makes the assembly become convenient, even later stage tarpaulin takes place to damage, also can change the seal assembly through taking out the jump ring from the notch and realize resealing, sets up like this and has further improved the leakproofness of valve body.

In foretell magnetic locking non return gate valve, the valve rod stretches into in the disk seat and the valve rod upper end passes the disk seat and exposes outside it, the valve rod upper end links firmly the valve cap, and the terminal surface is equipped with the constant head tank under the valve cap, the disk seat up end is equipped with the locating hole relative with the constant head tank position, be equipped with columniform magnet steel in the locating hole, still be equipped with spring one between magnet steel and the locating hole diapire, the magnet steel upwards slides and the upper end part stretches into in the constant head tank under the spring action of spring one.

The valve rod is driven to rotate by the circumferential rotation of the valve cap, so that the flashboard is driven to lift up and down. When closing the valve body, very easily opened by the people accident and cause the loss, so this product adopts the structure of valve cap and disk seat magnetism locking to realize, fixes valve cap and disk seat when not rotating the valve cap and prevents to be opened by the people accident, sets up the security like this and obtains promoting. And the magnetic locking is more convenient in daily use.

In foretell magnetism locking non return gate valve, still demountable installation has the hand wheel that can drive valve cap circumferential direction in the disk seat upper end, the hand wheel upper end is equipped with the mounting hole, slidable is provided with the handle in the mounting hole.

The valve cap needs a hand wheel to drive the valve cap to rotate, so that double insurance can be formed by the arrangement of the valve cap and magnetic locking, and the valve cap is prevented from being opened maliciously by people to cause loss. And the valve rod is rotated to control the lifting of the flashboard of the gate valve, so the hand wheel enables people to rotate the valve cap more easily, especially the handle arranged on the hand wheel, the handle is in a long rod shape and can be arranged in the mounting hole on the hand wheel in a sliding way, the length of the other end can be enhanced by sliding towards one end, and the principle similar to a lever is used for applying force to a single side to rotate the hand wheel more easily.

In the magnetic locking non-return gate valve, the hand wheel is provided with a strong magnetic area with the position opposite to the positioning groove.

The strong magnetic area has the function of forming mutual exclusion with the magnetic steel, so that the magnetic steel can get rid of the elasticity of the spring and completely return to the positioning hole, and the valve cap and the valve seat are relieved from limiting.

In foretell magnetic locking non return gate valve, the play water end inboard of valve body still is equipped with the non return case, and the non return case includes connector and core, the connector left end is equipped with the guide post, and the core cover is established on the guide post and can slide relative to the guide post, the guide post overcoat is equipped with spring two, and two left ends of spring are supported and are leaned on the core, and two right-hand members of spring are supported and are leaned on the connector, and the core remains the trend of leaning on the import of play water end all the time under the effect of spring force.

The non-return valve core can effectively prevent negative pressure and other phenomena from causing water flow backflow in the rear end pipe of the water outlet end of the valve body, so that household appliances or valves are damaged, and the non-return valve core has the effect of improving safety.

In the magnetic locking check gate valve, the connector is in threaded connection with the inner side of the water outlet end.

The connector threaded connection makes the assembly or dismantlement very convenient inboard at the valve body, has improved production efficiency greatly.

Compared with the prior art, the product has the advantages that: the top connection is fixed on the flashboard, and the lower clutch is fixed on the inner chamber diapire, carries out the separation with the water that the flashboard passageway entered into in the inner chamber through the tarpaulin, even the setting is ageing also can not cause leaking with the sealing member of disk seat or valve rod and disk seat like this, does not influence the holistic leakproofness of valve body for the life-span of product obtains very big extension.

Drawings

Fig. 1 is a partial cross-sectional view of the present invention;

fig. 2 is an enlarged view of the position a of the present invention.

In the figure, 1, a valve body; 11. an inner cavity; 12. mounting grooves; 2. a valve stem; 3. a valve seat; 31. positioning holes; 4. a shutter plate; 41. a ring groove; 42. a recess; 5. a seal assembly; 51. a lower joint; 52. an upper joint; 53. waterproof cloth; 6. a clamp spring; 7. a bonnet; 71. positioning a groove; 8. magnetic steel; 81. a first spring; 9. a hand wheel; 91. mounting holes; 92. a handle; 93. a strong magnetic region; 10. a check valve core; 101. a connector; 1011. a guide post; 102. a core; 103. and a second spring.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 and 2, magnetic locking non return gate valve, including the left end for intaking end and the right-hand member for going out water end valve body 1, 1 upper ends of valve body are equipped with the installation end, are connected with disk seat 3 on the installation end, wear to be equipped with valve rod 2 in the disk seat 3, and 3 circumferential direction of disk seat are relatively gone up to valve rod 2, and valve rod 2 upper end still exposes outside disk seat 3. A flashboard 4 which can be lifted and transversely cut off the water passing channel between the water inlet end and the water outlet end is also arranged between the water inlet end and the water outlet end of the valve body 1. The flashboard 4 side direction is equipped with the screw hole, and the lower extreme of valve rod 2 stretches into in the screw hole and both form circumference threaded connection. An inner cavity 11 is formed between the mounting end and the valve seat 3 in a surrounding mode, and the inner cavity 11 can be used for opening or closing the water passing channel for lifting by the gate plate 4. The valve rod 2 rotates circumferentially to drive the gate plate 4 to lift. The connection between the valve seat 3 and the valve body 1 is sealed by a gasket having sealing properties. The valve stem 2 and the valve seat 3 are also sealed by a sealing gasket. However, as time goes on, the rubber seal member inevitably deteriorates to deteriorate the sealing effect, and water leakage or the like may be seriously caused to cause unnecessary loss. The water leakage of the valve body 1 is mainly caused by the fact that in the lifting process of the gate plate 4, water flow enters the inner cavity 11 along the lifting passage of the gate plate 4, the inner cavity 11 is filled with accumulated water, and the phenomenon of water leakage is possibly caused by the fact that the sealing performance between the valve body 1 and the valve seat 3 or between the valve seat 3 and the valve rod 2 is reduced.

Therefore, the installation groove 12 is formed in the bottom wall of the inner cavity 11, and the installation groove 12 is formed in the bottom wall of the inner cavity 11 and surrounds the flashboard 4. Be equipped with seal assembly 5 in the mounting groove 12, seal assembly 5 is including being annular lower clutch 51, be annular top connection 52 and connect the tarpaulin 53 between top connection 52 and lower clutch 51, lower clutch 51 and mounting groove 12 threaded connection, be located and be equipped with annular 41 on the flashboard 4 periphery face in inner chamber 11, top connection 52 is located annular 41 and top connection 52 down the terminal surface and the annular 41 lateral wall supports and leans on, flashboard 4 upper end still is fixed with the jump ring 6 of limiting top connection 52 along its axial direction displacement.

The mounting groove 12 is opened around the gate plate 4, so that water entering the inner cavity 11 through the channel of the gate plate 4 is blocked by the sealing component 5, and the sealing performance of the whole valve body 1 is not affected even if the sealing elements of the valve body 1 and the valve seat 3 or the valve rod 2 and the valve seat 3 are aged, so that the service life of a product is greatly prolonged. Specifically, the seal assembly 5 includes a lower joint 51 having a ring shape, an upper joint 52 having a ring shape, and a tarpaulin 53 connected between the upper joint 52 and the lower joint 51. The lower joint 51 is externally provided with an external thread, the inner wall of the mounting groove 12 is internally provided with an internal thread, the two threads are connected and fixed, and the valve body 1 can be assembled conveniently. The upper joint 52 is sleeved at the upper end of the flashboard 4 and is limited and fixed through the clamp spring 6, and the assembly is also convenient. The groove bottom of the ring groove 41 is also provided with an arc-shaped notch 42, the clamp spring 6 is clamped in the notch 42, and the lower side surface of the clamp spring 6 abuts against the upper end surface of the upper joint 52. The top connection 52 is fixed at the upper end of the flashboard 4 through the clamp spring 6, so that the assembly is convenient, even if the later-stage waterproof cloth 53 is damaged, the sealing assembly 5 can be replaced by taking the clamp spring 6 out of the notch 42 to realize resealing, and the sealing performance of the valve body 1 is further improved through the arrangement. The upper connector 52, the lower connector 51 and the waterproof cloth 53 are arranged in an integral structure, the upper connector 51 and the lower connector 51 are used for installation and fixation, and the waterproof cloth 53 is used for blocking water entering the inner cavity 11 through a passage of the lifting of the gate plate 4. The tarpaulin 53 is folded and arranged in the inner cavity 11, and the upper joint 52 is also displaced along with the lifting of the gate plate 4, so the tarpaulin 53 with certain elasticity and enough length is required to meet the lifting of the gate plate 4, thereby achieving the purpose of not influencing the use of the valve.

The valve rod 2 stretches into in the valve seat 3 and the upper end of the valve rod 2 passes through the valve seat 3 and exposes outside, the upper end of the valve rod 2 is fixedly connected with the valve cap 7, the terminal surface is equipped with the positioning groove 71 under the valve cap 7, the upper end surface of the valve seat 3 is equipped with the positioning hole 31 opposite to the positioning groove 71, the positioning hole 31 is internally equipped with the columniform magnetic steel 8, a spring I81 is further arranged between the magnetic steel 8 and the bottom wall of the positioning hole 31, the magnetic steel 8 slides upwards under the elastic action of the spring I81, and the upper end part stretches into the positioning groove 71, so that the circumferential rotation of the valve cap. The valve rod 2 is driven to rotate by the circumferential rotation of the valve cap 7, so that the flashboard 4 is driven to lift up and down. When closing valve body 1, very easily by the unexpected loss that causes of opening of people, so this product adopts the structure of valve cap 7 and 3 magnetic locking of disk seat to realize, fixes valve cap 7 and disk seat 3 when not rotating valve cap 7 and prevents to be opened by the people's accident, sets up the security like this and obtains promoting. And the magnetic locking is more convenient in daily use. When the valve needs to be adjusted, only the hand wheel 9 needs to be installed, and the hand wheel 9 is provided with the strong magnetic area 93 with the position right opposite to the positioning groove 71. The strong magnetic region 93 has the function of forming mutual exclusion with the magnetic steel 8, so that the magnetic steel 8 can get rid of the elastic force of the spring and completely return to the positioning hole 31, and the valve cap 7 and the valve seat 3 are relieved from limiting. The upper end of the hand wheel 9 is provided with a mounting hole 91, and a handle 92 is slidably arranged in the mounting hole 91. The valve cap 7 needs a hand wheel 9 to drive the valve cap to rotate, so that double safety can be formed by the arrangement of the valve cap and the magnetic locking, and the valve cap is prevented from being opened maliciously by people to cause loss. And it is comparatively labouring to rotate the lift of the flashboard 4 that the valve rod 2 comes the control gate valve, so the hand wheel 9 enables the rotation valve cap 7 that we are lighter, especially the handle 92 that sets up on the hand wheel 9, and handle 92 is long rod shape, but also slidable sets up in the mounting hole 91 on the hand wheel 9, can be through sliding towards one end, with the length reinforcing of the other end, the principle similar to the lever comes the lighter to unilateral application of force rotation hand wheel 9.

The inner side of the water outlet end of the valve body 1 is also provided with a check valve core 10, and the check valve core 10 comprises a connector 101 and a core 102. Connector 101 threaded connection is in a water outlet end inboard for it is very convenient to assemble or dismantle, has improved production efficiency greatly. The left end of the connector 101 is provided with a guide column 1011, the core 102 is sleeved on the guide column 1011 and can slide relative to the guide column 1011, the guide column 1011 is sleeved with a second spring 103, the left end of the second spring 103 abuts against the core 102, the right end of the second spring 103 abuts against the connector 101, and the core 102 always keeps the trend of abutting against the inlet of the water outlet end under the action of the elastic force of the spring. The non-return valve core 10 can effectively prevent negative pressure and other phenomena from causing water flow backflow in a rear end pipe at the water outlet end of the valve body 1, so that household appliances or valves are damaged, and the non-return valve core has the effect of improving safety.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims (7)

1. Magnetic locking check gate valve, including valve body (1), valve rod (2) and disk seat (3), still be equipped with between the end of intaking of valve body (1) and the play water end flashboard (4) that go up and down by valve rod (2) control, inner chamber (11) that supply flashboard (4) to go up and down to use have between disk seat (3) and valve body (1), its characterized in that, mounting groove (12) have been seted up on inner chamber (11) diapire, be equipped with seal assembly (5) in mounting groove (12), seal assembly (5) including be annular lower clutch (51), be annular upper clutch (52) and connect waterproof cloth (53) of upper clutch (52) and lower clutch (51), lower clutch (51) and mounting groove (12) threaded connection, annular (41) have been seted up on flashboard (4) the outer peripheral face, terminal surface and annular (41) lateral wall support and lean on under upper clutch (52) and annular (41) are located annular (41), and a clamp spring (6) for limiting the displacement of the upper joint (52) along the axis direction is further fixed at the upper end of the flashboard (4).

2. The magnetic locking non-return gate valve according to claim 1, characterized in that the groove bottom of the ring groove (41) is also opened with an arc-shaped notch (42), the circlip (6) is snapped into the notch (42) and the lower side of the circlip (6) is abutted against the upper end face of the upper joint (52).

3. The magnetic locking check gate valve of claim 2, characterized in that the valve rod (2) extends into the valve seat (3) and the upper end of the valve rod (2) passes through the valve seat (3) and is exposed outside, the upper end of the valve rod (2) is fixedly connected with the valve cap (7), the lower end face of the valve cap (7) is provided with a positioning groove (71), the upper end face of the valve seat (3) is provided with a positioning hole (31) opposite to the positioning groove (71), the positioning hole (31) is internally provided with a cylindrical magnetic steel (8), a first spring (81) is further arranged between the magnetic steel (8) and the bottom wall of the positioning hole (31), the magnetic steel (8) slides upwards under the elastic force of the first spring (81) and the upper end part extends into the positioning groove (71).

4. The magnetic locking check gate valve according to claim 1, 2 or 3, wherein a hand wheel (9) capable of driving the valve cap (7) to rotate circumferentially is detachably mounted at the upper end of the valve seat (3), a mounting hole (91) is formed in the upper end of the hand wheel (9), and a handle (92) is slidably arranged in the mounting hole (91).

5. The magnetic locking non-return gate valve according to claim 4, characterized in that the hand wheel (9) is provided with a strong magnetic area (93) located directly opposite the positioning groove (71).

6. The magnetic locking check gate valve according to claim 5, characterized in that a check valve core (10) is further arranged on the inner side of the water outlet end of the valve body (1), the check valve core (10) comprises a connector (101) and a core (102), the left end of the connector (101) is provided with a guide post (1011), the core (102) is sleeved on the guide post (1011) and can slide relative to the guide post (1011), a second spring (103) is sleeved outside the guide post (1011), the left end of the second spring (103) abuts against the core (102), the right end of the second spring (103) abuts against the connector (101), and the core (102) always keeps the tendency of abutting against the inlet of the water outlet end under the action of the elastic force of the second spring (103).

7. The magnetic locking check gate valve of claim 6, characterized in that the connector (101) is screwed inside the outlet end.

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