CN214999494U

CN214999494U - Gate valve

Info

Publication number: CN214999494U
Application number: CN202121577251.8U
Authority: CN
Inventors: 郑嗣堡; 郑秀銮; 郑博仁
Original assignee: Zhejiang Zhongchi Valve Industry Co ltd
Current assignee: Zhongchi Valve Group Co ltd
Priority date: 2021-07-12
Filing date: 2021-07-12
Publication date: 2021-12-03
Anticipated expiration: 2031-07-12

Abstract

The utility model relates to a gate valve, including valve body and valve rod, the one end that the valve body was kept away from to the valve rod is connected with the rotation hand wheel, be connected with the connecting pipe on the valve body, the one end that the valve body was kept away from to the connecting pipe is installed the installation apron, one side that the installation apron deviates from the connecting pipe is connected with the installation section of thick bamboo, be connected with the connecting plate on the valve rod, one side that the connecting plate deviates from the rotation hand wheel has the solid fixed ring that encircles in the installation section of thick bamboo outside along circumference connection, gu fixed ring's inside wall and the lateral wall threaded connection of installation section of thick bamboo, the lateral wall that the installation section of thick bamboo is close to the one end of installation apron has the support ring along circumference connection, all articulated on the two outer walls mutually opposite sides of support ring have the lockplate, one side in opposite directions of two lockplates all is connected with and is used for the card to go into the locking piece between solid fixed ring and the support ring, can dismantle the connection through the locating part between the expansion end of two lockplates. The hand wheel is rotated by hand to screw the valve rod out of the valve body, and then the locking block is clamped between the fixing ring and the support ring, so that the gate valve is ensured to be completely opened, and the service life of the gate valve is prolonged.

Description

Gate valve

Technical Field

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

Background

A gate valve is a common on-off valve, which uses a gate plate to open or close a medium in a pipeline, and which does not allow for a shut-off. In use, the flashboard is prevented from being opened slightly, and the damage of a sealing surface is accelerated due to the erosion of a high-speed flowing medium.

At present, patent No. CN206708414U discloses a gate valve, which comprises a valve body, a first valve core, a control rod and a connecting piece; the valve body comprises a water injection end and a water discharge end.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: when the gate valve is used, people often do not rotate the gate valve to a completely opened state, and the medium flowing at a high speed impacts the first valve core, so that the service life of the gate valve is seriously influenced, and therefore improvement is needed.

SUMMERY OF THE UTILITY MODEL

In order to prolong the life of gate valve, the application provides a gate valve.

The application provides a gate valve adopts following technical scheme:

a gate valve comprises a valve body and a valve rod, wherein one end of the valve rod, which is far away from the valve body, is connected with a rotating hand wheel, the valve body is connected with a connecting pipe, one end of the connecting pipe far away from the valve body is provided with an installation cover plate, one side of the mounting cover plate, which is far away from the connecting pipe, is connected with a mounting cylinder for the valve rod to pass through, the valve rod is connected with a connecting plate, one side of the connecting plate, which is far away from the rotating hand wheel, is circumferentially connected with a fixing ring which surrounds the outer side of the mounting cylinder, the inner side wall of the fixing ring is in threaded connection with the outer side wall of the mounting cylinder, the outer side wall of one end of the mounting cylinder, which is close to the mounting cover plate, is connected with a support ring along the circumferential direction, all articulated on the two outer walls that back on the back of the body of support ring have a lockplate, two the locking plate in opposite directions one side all is connected with and is used for the card to go into the locking piece between solid fixed ring and the support ring, two can dismantle the connection through the locating part between the expansion end of lockplate.

By adopting the technical scheme, when the gate valve is opened, the hand wheel is rotated by hand to screw the valve rod out of the valve body, and then the locking block is clamped between the fixing ring and the support ring, so that the gate valve is ensured to be completely opened, and the service life of the gate valve is prolonged; when the gate valve is not completely opened, the locking block cannot be clamped between the fixing ring and the support ring; in addition, after the locking block is clamped between the fixing ring and the support ring, the rotating hand wheel can be limited to rotate accidentally, and the gate valve is ensured to be kept in a completely opened state all the time.

Optionally, the locating part includes gag lever post, spacing bolt and connects in the fixed plate of gag lever post one end, every the connecting hole that supplies the gag lever post to pass is all seted up to the expansion end of lockplate, the one end and the spacing bolt threaded connection of fixed plate are kept away from to the gag lever post.

Through adopting above-mentioned technical scheme, pass the connecting hole on two lockplates with the gag lever post in proper order, then with spacing bolt screw in gag lever post to fix the expansion end of two lockplates together, and then restrict two lockplates and rotate at will.

Optionally, the limit bolt is a butterfly bolt.

Through adopting above-mentioned technical scheme, the staff need not with the help of extra instrument, bare-handed can rotate spacing bolt, improves the installation effectiveness.

Optionally, a fastening ring with deformation capability is connected to the outer side wall of the locking block adjacent to the locking plate along the circumferential direction.

Through adopting above-mentioned technical scheme, go into locking piece card solid fixed ring and support ring between the back, the tighrening ring can chucking support ring and solid fixed ring to the restriction locking piece breaks away from between solid fixed ring and the support ring, and then is tentatively fixed with the lockplate, is convenient for install the locating part.

Optionally, one side of installation apron orientation connecting pipe is connected with sealed piece, the seal groove that supplies sealed piece card to go into is seted up along circumference to the inside wall of connecting pipe, the lateral wall of sealed piece is hugged closely with the inside wall of seal groove.

Through adopting above-mentioned technical scheme, when closing the installation apron lid on the connecting pipe, in the seal groove was gone into to sealed piece card, sealed piece hugged closely with the inside wall of seal groove to improve the leakproofness between installation apron and the connecting pipe.

Optionally, the outer side wall of the adjacent mounting cover plate of the sealing block is circumferentially connected with a sealing ring, and the outer side wall of the sealing ring is tightly attached to the inner side wall of the sealing groove.

Through adopting above-mentioned technical scheme, with sealed piece card back in going into the seal groove, the sealing washer can fill up the space between sealed piece and the seal groove, further improves the leakproofness between installation apron and the connecting pipe.

Optionally, the connecting pipe is connected with a plurality of connecting screw rod along circumference interval towards the one end of installation apron, the installation apron is equipped with the mounting hole that a plurality of supplied connecting screw rod to pass along circumference interval towards one side of connecting pipe, every the one end that connecting screw rod kept away from the connecting pipe all overlaps and is equipped with the connecting cylinder that is used for supporting tight installation apron, the inside wall threaded connection of connecting screw rod and connecting cylinder.

Through adopting above-mentioned technical scheme, will install the apron lid and close on the connecting pipe for all connecting screw on the connecting pipe pass each mounting hole respectively, screw all connecting cylinders after that, make the connecting cylinder support tightly and install the apron, thereby will install the apron and install on the connecting pipe.

Optionally, the outer side wall of one end of the connecting cylinder facing the installation cover plate is connected with a locking ring used for clinging to the installation cover plate along the circumferential direction, and a plurality of anti-slip strips are arranged on one side of the locking ring facing the installation cover plate along the circumferential direction at intervals.

Through adopting above-mentioned technical scheme, the connecting cylinder of screwing for locking ring supports tight installation apron, and the antislip strip can improve the frictional force between locking ring and the installation apron, thereby restriction connecting cylinder is unexpected not hard up, improves the firm in connection nature between installation apron and the connecting pipe.

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

when the gate valve is opened, the hand wheel is rotated by hands to screw the valve rod out of the valve body, and then the locking block is clamped between the fixing ring and the support ring, so that the gate valve is ensured to be completely opened, and the service life of the gate valve is prolonged; when the gate valve is not completely opened, the locking block cannot be clamped between the fixing ring and the support ring; in addition, when the locking block is clamped between the fixing ring and the support ring, the rotating hand wheel can be limited from rotating accidentally, and the gate valve is ensured to be kept in a completely opened state all the time;

the mounting cover plate covers the connecting pipe, all connecting screws on the connecting pipe penetrate through the mounting holes respectively, all connecting cylinders are screwed, the connecting cylinders abut against the mounting cover plate, and the mounting cover plate is mounted on the connecting pipe.

Drawings

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

Fig. 2 is an exploded schematic view of an embodiment of the present application.

Fig. 3 is a schematic structural view of a connecting cylinder and an anti-loosening ring in an embodiment of the present application.

Description of reference numerals: 1. a valve body; 2. a valve stem; 21. a connecting plate; 22. a fixing ring; 3. rotating a hand wheel; 4. a connecting pipe; 41. a sealing groove; 5. installing a cover plate; 51. a sealing block; 52. a seal ring; 53. mounting holes; 6. mounting the cylinder; 61. a support ring; 7. a locking plate; 71. a locking block; 72. connecting holes; 73. a fastening ring; 8. a limiting member; 81. a limiting rod; 82. a limit bolt; 83. a fixing plate; 9. connecting a screw rod; 91. a connecting cylinder; 92. an anti-loosening ring; 921. and (4) an anti-slip strip.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a gate valve. Referring to fig. 1, the valve includes a valve body 1 and a valve stem 2. One end of the valve rod 2 far away from the valve body 1 is fixedly connected with a rotating hand wheel 3, and the rotating hand wheel 3 and the valve rod 2 are arranged in a coaxial line. The valve body 1 is integrally formed with a connecting pipe 4 with a circular section, and the connecting pipe 4 is communicated with the valve body 1. One end of the connecting pipe 4 far away from the valve body 1 is detachably connected with a circular mounting cover plate 5 for sealing the connecting pipe 4.

Referring to fig. 1 and 2, the mounting cover plate 5 is fixedly connected with a mounting cylinder 6 at one side departing from the connecting pipe 4, and the valve rod 2 penetrates through the mounting cylinder 6 and the mounting cover plate 5 and extends into the valve body 1. The outer side wall of the valve rod 2 is fixedly connected with a circular connecting plate 21, and the connecting plate 21 and the valve rod 2 are arranged coaxially. One side that connecting plate 21 deviates from rotation hand wheel 3 is along circumference fixedly connected with around the solid fixed ring 22 in the installation section of thick bamboo 6 outside, gu fixed ring 22's inside wall and the lateral wall threaded connection of installation section of thick bamboo 6. The hand wheel 3 is rotated to enable the fixing ring 22 and the mounting cylinder 6 to form relative displacement, and therefore the valve rod 2 is controlled to lift.

Referring to fig. 2, a support ring 61 is integrally formed on the outer side wall of one end of the installation cylinder 6 close to the installation cover plate 5 along the circumferential direction, two outer walls of the support ring 61 which are opposite to each other are hinged with an arc-shaped locking plate 7, one side of each of the two locking plates 7 which face each other is fixedly connected with a locking block 71 which is used for being clamped between the fixing ring 22 and the support ring 61, and a fastening ring 73 made of silica gel is fixedly connected to the outer side wall of the locking plate 7 adjacent to the locking block 71 along the circumferential direction. When the gate valve is not completely opened, the locking block 71 cannot be clamped between the fixing ring 22 and the support ring 61, so that a worker is reminded to completely open the gate valve, and the service life of the gate valve is prolonged.

Referring to fig. 2, the movable ends of the two locking plates 7 are detachably connected through a limiting member 8, the limiting member 8 includes a limiting rod 81, a fixing plate 83 fixedly connected to one end of the limiting rod 81, and a limiting bolt 82, and the limiting bolt 82 is a butterfly bolt. The movable end of each locking plate 7 is provided with a connecting hole 72 through which the limiting rod 81 passes, and the fixing plate 83 cannot pass through the connecting hole 72. One end of the limiting rod 81 far away from the fixing plate 83 is in threaded connection with the limiting bolt 82. The limiting rod 81 is sequentially passed through the limiting holes on the two locking plates 7, and then the limiting bolt 82 is screwed into the limiting rod 81, so that the movable ends of the two locking plates 7 are fixed together, and the locking block 71 is prevented from accidentally disengaging between the fixing ring 22 and the support ring 61.

Referring to fig. 2, four connection screws 9 are fixedly connected to one end of the connection pipe 4 facing the mounting cover 5 at intervals in the circumferential direction. Four mounting holes 53 for the connecting screw rods 9 to pass through are formed in one side of the mounting cover plate 5 facing the connecting pipe 4 at intervals along the circumferential direction. One end of each connecting screw rod 9, which is far away from the connecting pipe 4, is sleeved with a connecting cylinder 91 for abutting against the mounting cover plate 5, and the connecting screw rods 9 are in threaded connection with the inner side wall of the connecting cylinder 91. All the connecting screws 9 on the connecting pipe 4 respectively penetrate through the mounting holes 53, and the connecting cylinder 91 is screwed, so that the connecting cylinder 91 abuts against the mounting cover plate 5, and the mounting cover plate 5 is mounted on the connecting pipe 4.

Referring to fig. 2, a sealing block 51 having a circular ring shape is fixedly connected to one side of the mounting cover 5 facing the connection pipe 4, and the sealing block 51 surrounds the outside of the valve rod 2. A sealing ring 52 made of silica gel is fixedly connected to the outer side wall of the sealing block 51 adjacent to the mounting cover plate 5 along the circumferential direction. The inner side wall of one end of the connecting pipe 4 far away from the valve body 1 is provided with a sealing groove 41 for the sealing block 51 to be clamped in along the circumferential direction. When the installation cover 5 is installed on the connection pipe 4, the sealing ring 52 abuts against the inner sidewall of the sealing groove 41, thereby improving the sealing property between the installation cover 5 and the connection pipe 4.

Referring to fig. 2 and 3, a locking ring 92 for tightly attaching to the mounting cover plate 5 is fixedly connected to the outer side wall of one end of the connecting cylinder 91 facing the mounting cover plate 5 along the circumferential direction, and a plurality of anti-slip strips 921 are integrally formed on one side of the locking ring 92 departing from the connecting cylinder 91 along the circumferential direction at intervals. The connecting cylinder 91 is screwed tightly, so that the anti-loosening ring 92 abuts against the installation cover plate 5, the anti-slip strip 921 can improve the friction force between the anti-loosening ring 92 and the installation cover plate 5, and the accidental loosening of the connecting cylinder 91 is limited.

The implementation principle of a gate valve of the embodiment of the application is as follows: the hand wheel 3 is rotated by hand to completely open the gate valve, then the locking block 71 is clamped between the support ring 61 and the fixing ring 22, then the limiting rod 81 sequentially passes through the connecting holes 72 on the two locking plates 7, and then the limiting bolt 82 is screwed into the limiting hole on the limiting rod 81, so that the locking block 71 can be fixed between the support ring 61 and the fixing ring 22.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a gate valve, includes valve body (1) and valve rod (2), the one end that valve body (1) were kept away from in valve rod (2) is connected with rotation hand wheel (3), be connected with connecting pipe (4) on valve body (1), the one end that valve body (1) were kept away from in connecting pipe (4) is installed and is lapped (5), one side that installation apron (5) deviate from connecting pipe (4) is connected with installation section of thick bamboo (6) that supply valve rod (2) to pass, be connected with connecting plate (21) on valve rod (2), one side that connecting plate (21) deviate from rotation hand wheel (3) has solid fixed ring (22) of encircleing in installation section of thick bamboo (6) outside along circumferential connection, the inside wall of solid fixed ring (22) and the lateral wall threaded connection of installation section of thick bamboo (6), its characterized in that: the lateral wall that installation section of thick bamboo (6) is close to the one end of installation apron (5) has support ring (61) along circumferential connection, all articulated on the two outer walls that back on the back of the body of support ring (61) have lockplate (7), two one side in opposite directions of lockplate (7) all is connected with and is used for the card to go into locking piece (71) between solid fixed ring (22) and support ring (61), two can dismantle the connection through locating part (8) between the expansion end of lockplate (7).

2. A gate valve according to claim 1, characterised in that: locating part (8) include gag lever post (81), spacing bolt (82) and connect in fixed plate (83) of gag lever post (81) one end, every connecting hole (72) that supply gag lever post (81) to pass are all seted up to the expansion end of lockplate (7), the one end and the spacing bolt (82) threaded connection of fixed plate (83) are kept away from in gag lever post (81).

3. A gate valve according to claim 2, characterised in that: the limiting bolt (82) is a butterfly bolt.

4. A gate valve according to claim 1, characterised in that: the outer side wall of the locking block (71) adjacent to the locking plate (7) is connected with a fastening ring (73) with deformation capacity along the circumferential direction.

5. A gate valve according to claim 1, characterised in that: installation apron (5) are connected with sealed piece (51) towards one side of connecting pipe (4), seal groove (41) that supply sealed piece (51) card to go into are seted up along circumference to the inside wall of connecting pipe (4), the lateral wall of sealed piece (51) is hugged closely with the inside wall of seal groove (41).

6. A gate valve according to claim 5, characterised in that: the outer side wall of the sealing block (51) adjacent to the mounting cover plate (5) is connected with a sealing ring (52) along the circumferential direction, and the outer side wall of the sealing ring (52) is tightly attached to the inner side wall of the sealing groove (41).

7. A gate valve according to claim 6, characterised in that: connecting pipe (4) are connected with a plurality of connecting screw rod (9) towards the one end of installation apron (5) along circumference interval, installation apron (5) are equipped with mounting hole (53) that a plurality of supplied connecting screw rod (9) to pass along circumference interval towards one side of connecting pipe (4), every connecting screw rod (9) keep away from the one end of connecting pipe (4) and all overlap and be equipped with connecting cylinder (91) that are used for supporting tight installation apron (5), the inside wall threaded connection of connecting screw rod (9) and connecting cylinder (91).

8. A gate valve according to claim 7, characterized in that: the outer side wall of one end of the connecting cylinder (91) facing the installation cover plate (5) is connected with a locking ring (92) used for clinging to the installation cover plate (5) along the circumferential direction, and a plurality of anti-slip strips (921) are arranged on one side of the locking ring (92) facing the installation cover plate (5) along the circumferential direction at intervals.