CN211624310U

CN211624310U - Valve bank special for sewage

Info

Publication number: CN211624310U
Application number: CN202020146347.8U
Authority: CN
Inventors: 金宗林; 金繁荣
Original assignee: Jingjia Valve Group Co ltd
Current assignee: Jingjia Valve Group Co ltd
Priority date: 2020-01-23
Filing date: 2020-01-23
Publication date: 2020-10-02
Anticipated expiration: 2030-01-23

Abstract

The utility model discloses a special valve group for sewage, which belongs to the technical field of pipeline valves and comprises a gate valve, a ball check valve and a shockproof expansion joint; a sunken structure is arranged on the valve body of the ball-shaped check valve, the sunken depth is greater than the wall thickness of the valve body of the ball-shaped check valve, and a handle structure is spanned on the sunken structure; through the design, the gate valve and the ball check valve are integrally formed, so that the complexity of the traditional single pipeline connection is saved; the shockproof expansion joint can also be preassembled in a flange hole of the ball check valve through the design of the utility model, thereby realizing the integral assembly of equipment before the pipeline installation and simplifying the workload of the engineering construction site; the utility model discloses add handle structure on ball check valve's valve body, set up the sunk structure below the handle simultaneously, this sunk structure sinks into the inside spherical cover body simultaneously, has avoided the obscission that the spherical cover body appears after long-term use, and structural design is more reasonable.

Description

Valve bank special for sewage

Technical Field

The utility model belongs to the technical field of the pipeline valve and specifically relates to a special valves of sewage.

Background

In the prior art, a gate valve, a ball-type check valve and a shockproof expansion joint are combined into a valve group structure, the valve group is of a split structure, the gate valve, the ball-type check valve and the expansion joint are connected together through flange bolts and are mainly used for discharging a sewage pump and other places preventing backflow, the gate valve is used for cutting off and intercepting media, the check valve is a special check valve for sewage drainage and is used for preventing sewage from flowing backwards and protecting a water pump and other equipment, and the shockproof expansion joint is used for absorbing pipeline vibration and automatically compensating the expansion function of a pipeline;

however, because the split gate valve, the ball check valve and the shockproof expansion joint valve set are of split structures, on one hand, in the actual working condition, the required installation space is increased, the installation is more complex, and the engineering cost and the construction period are increased; on the other hand, the ball cover body of the ball check valve is separated from the connection with the valve body after long-term use, and performs rotation action and slight axial movement in the valve body, thereby seriously influencing the check effect.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a special valves of sewage, it is different from the mode that traditional gate valve, ball check valve, shockproof expansion joint set up each other independently, integrally formed gate valve and ball check valve in advance when manufacturing, thus when the actual engineering installation, gate valve and ball check valve are installed in the pipeline as an integral series connection, only need with the flange connection at both ends in the pipeline can, great reduction installation construction cycle; in addition, the shockproof expansion joint is preassembled in the flange hole of the ball check valve, and can be directly connected to the pipeline through the flange at the end part of the shockproof expansion joint during construction, so that the three are preassembled before the pipeline is installed, the shutoff valve has the functions of cut-off and cut-off, the medium backflow prevention function of the ball check valve is realized, and meanwhile, the shockproof expansion joint also has the functions of shockproof expansion and contraction.

In order to solve the technical problems that the installation period is long and the structural design of a ball check valve is unreasonable due to the mutual independence of the valve structures in the valve group in the prior art, the utility model provides a special valve group for sewage, which comprises a gate valve, a ball check valve and a shockproof expansion joint;

the gate valve comprises a first valve body, a valve rod, a valve plate and a hand wheel; a first flow channel and a valve plate cavity are formed in the first valve body; the hand wheel is connected to the outer end of the valve rod, the inner end of the valve rod is inserted into the valve plate cavity, and the inner end of the valve rod is connected with the valve plate; the valve plate cuts off or conducts the first flow channel along with the rotation of the hand wheel; the first valve body is integrally formed with a first flange at the water inlet of the first flow channel;

the ball check valve comprises a rubber ball, a second valve body and a ball cover body; a second flow passage is formed in the second valve body, the spherical cover body is arranged in the second flow passage, the outer side wall of the spherical cover body is tightly attached to the inner side wall of the second valve body, and the rubber ball is arranged in the spherical cover body; the second valve body is integrally formed at one end of the water inlet of the second flow passage and at one end of the water outlet of the first valve body, which is located at the first flow passage; a second flange is integrally formed on the second valve body and positioned at the water drainage port of the second flow passage;

the shockproof expansion joint comprises a joint sleeve and an elastic sleeve ring; one end of the joint sleeve is inserted into the flange hole of the second flange, and the other end of the joint sleeve is integrally formed into a third flange; the elastic sleeve ring is sleeved on the joint sleeve and is positioned between the second flange and the third flange; the limiting structure comprises a screw and two limiting nuts, the screw is connected with the second flange and the third flange, and the two limiting nuts are in threaded connection with the screw and are respectively arranged on two sides of the third flange.

Further, the utility model provides a pair of special valves of sewage, wherein, sealed annular has been seted up to the pore wall in the flange hole of second flange be provided with the sealing ring in the sealed annular, be used for the pore wall with form sealedly between the adapter sleeve's the outer pipe wall.

Furthermore, the utility model provides a pair of special valves of sewage, wherein, be provided with a sunk structure on the second valve body and along the second runner direction, and the sunken degree of depth is greater than the wall thickness of second valve body, this setting leads to the second valve body lateral wall invagination, makes the same invagination in the position that the spherical cover body outer lateral wall corresponds with this sunk structure simultaneously, and this invagination sets up along second runner direction, can effectively avoid the spherical cover body to do the rotation action of circumference around the ball check valve axis after long-term use, and increased the contact area of the second valve body inner lateral wall and spherical cover body, connect more reliably; in addition, a handle structure is arranged on the concave structure in a spanning mode, and the arrangement is that when in actual engineering installation, an installer needs to hold the hand wheel with one hand and hold the hand wheel with the other hand from the lower part of the spherical check valve so as to align the flanges at the two ends with the pipeline connecting flange, and the holding mode is relatively labor-consuming in actual operation; the utility model discloses add handle structure, the one hand of person easy to assemble grips the hand wheel, and the other hand grips handle structure, conveniently aims at the installation.

Further, the utility model provides a pair of special valves of sewage, wherein, handle structure integrated into one piece in the lateral wall of second valve body.

Further, the utility model provides a pair of special valves of sewage, wherein, handle structure and hand wheel homonymy are arranged.

Further, the utility model provides a special valves of sewage, wherein, the handle structure is arranged along perpendicular to the second flow path direction; this arrangement is ergonomic and is convenient for the installer to hold.

The utility model relates to a special valves of sewage compares with prior art and has following advantage: on one hand, the utility model integrates the gate valve and the ball check valve, thus saving the complexity of the traditional single pipeline connection; on the other hand, the shockproof expansion joint can be pre-installed in the flange hole of the ball check valve through the design of the utility model, thereby realizing the integral installation of the equipment before the pipeline installation and simplifying the workload of the engineering construction site; in addition, the utility model discloses unique design has been done to ball check valve, when addding handle structure on the valve body, sets up the sunk structure in the handle below, and this sunk structure sinks into the inside spherical cover body simultaneously, has avoided the obscission that the spherical cover body appears after long-term use, and structural design is more reasonable.

Drawings

FIG. 1 is a schematic view of a valve set for sewage treatment according to the present invention;

FIG. 2 is a schematic view of a ball check valve in a special valve set for sewage according to the present invention;

FIG. 3 is an exploded view of the ball check valve of FIG. 2;

FIG. 4 is a schematic view of a second valve body of the valve set for sewage treatment of the present invention;

fig. 5 is the structural schematic diagram of the spherical cover body in the special valve bank for sewage.

Wherein: 1. a gate valve; 2. a ball check valve; 3. a shock-proof expansion joint; 4. a first valve body; 5. a valve stem; 6. a valve plate; 7. a hand wheel; 8. a first flow passage; 9. a valve plate cavity; 10. a first flange; 11. rubber balls; 12. a second valve body; 13. a ball cover body; 14. a second flow passage; 15. a second flange; 16. sealing the ring groove; 17. a seal ring; 18. a joint bushing; 19. an elastic collar; 20. a third flange; 21. a limiting structure; 22. a screw; 23. a limit nut; 24. a recessed structure; 25. a handle structure.

Detailed Description

The technical solution 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 of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention;

it should be noted that, in the description of the present invention, it should be noted that the terms "left", "right", "both ends", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

As shown in fig. 1 to 5, the present embodiment provides a valve set dedicated for sewage, which includes a gate valve 1, a ball check valve 2 and a shock-proof expansion joint 3;

the gate valve comprises a gate valve 1, a first valve body 4, a valve rod 5, a valve plate 6 and a hand wheel 7; a first flow channel 8 and a valve plate cavity 9 are formed in the first valve body 4; the hand wheel 7 is connected to the outer end of the valve rod 5, the inner end of the valve rod 5 is inserted into the valve plate cavity 9, and the valve plate 6 is connected to the inner end; the valve plate 6 cuts off or conducts the first flow channel 8 along with the rotation of the hand wheel 7; a first flange 10 is integrally formed on the first valve body 4 and positioned at the water inlet of the first flow passage 8;

the ball check valve 2, the ball check valve 2 includes the rubber ball 11, the second valve body 12 and the ball cover body 13; a second flow passage 14 is formed in the second valve body 12, the ball cover body 13 is arranged in the second flow passage 14, the outer side wall of the ball cover body 13 is tightly attached to the inner side wall of the second valve body 12, and the rubber ball 11 is arranged in the ball cover body 13; the second valve body 12 is integrally formed at the water inlet end of the second flow passage 14 and at the water outlet end of the first valve body 4 of the first flow passage 8; a second flange 15 is integrally formed on the second valve body 12 and located at a water discharge port of the second flow passage 14; a sealing ring groove 16 is formed in the hole wall of the flange hole of the second flange 15, and a sealing ring 17 is arranged in the sealing ring groove 16 and used for forming sealing between the hole wall and the outer pipe wall of the joint sleeve 18;

the shockproof expansion joint 3 comprises a joint sleeve 18 and an elastic sleeve ring 19; one end of the joint sleeve 18 is inserted into the flange hole of the second flange 15, and the other end of the joint sleeve is integrally formed into a third flange 20; the elastic collar 19 is sleeved on the joint sleeve 18 and is positioned between the second flange 15 and the third flange 20; the flange structure further comprises a limiting structure 21, the limiting structure 21 comprises a screw 22 and two limiting nuts 23, the screw 22 is connected to the second flange 15 and the third flange 20, and the two limiting nuts 23 are in threaded connection with the screw 22 and are respectively arranged on two sides of the third flange 20;

as shown in fig. 2 to 5, a concave structure 24 is disposed on the second valve body 12 along the direction of the second flow channel 14, and the depth of the concave structure is greater than the wall thickness of the second valve body 12, so that the sidewall of the second valve body 12 is recessed, and the outer sidewall of the ball cover 13 is also recessed from the position corresponding to the concave structure 24, and the recessed structure is disposed along the direction of the second flow channel 14, so as to effectively avoid the circumferential rotation of the ball cover 13 around the axis of the ball check valve 2 after long-term use, increase the contact area between the inner sidewall of the second valve body 12 and the ball cover 13, and make the connection more reliable; in addition, a handle structure 25 is arranged on the concave structure 24 in a spanning manner, which is arranged in a manner that the installer needs to hold the hand wheel 7 with one hand and hold the other hand from the lower part of the ball check valve 2 to align the flanges at the two ends with the pipeline connecting flange in the actual engineering installation, and the holding manner is relatively labor-consuming in the actual operation; the utility model is additionally provided with the handle structure 25, so that an installer can conveniently hold the hand wheel 7 with one hand and hold the handle structure 25 with the other hand, and the alignment and installation are convenient;

as a preferable solution of the present embodiment, in the present embodiment, the handle structure 25 is integrally formed on the outer side wall of the second valve body 12; meanwhile, for consideration of ergonomics, the handle structure 25 is arranged on the same side as the hand wheel 7, and the handle structure 25 is arranged along the direction perpendicular to the second flow passage 14;

in the embodiment, the spherical check valve 2 has the same working principle as the prior art except for the unique handle structure 25 and the unique concave structure 24, the rubber ball 11 is processed into a ball core by a steel plate, and is lined with a rubber layer to keep certain elasticity and have enough strength, the working principle is that the rubber ball 11 rolls in the ball cover body 13 in a short stroke to realize the opening and closing of the valve, when the water pump is started, the pressure of water flushes the rubber ball 11, so that the rubber ball 11 rolls to the right side of the ball cover body 13, and the check valve is opened; after the pump is stopped, the rubber ball 11 is forced to roll to the left side of the ball cover body 13 due to the backwater pressure of the system, and the closing effect of the check valve is achieved.

The details of the present invention are well known to those skilled in the art.

Finally, it is to be noted that: the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the examples, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified and replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims

1. A valve bank special for sewage is characterized by comprising a gate valve, a ball check valve and a shockproof expansion joint;

2. The valve group special for sewage water as claimed in claim 1, wherein the hole wall of the flange hole of the second flange is provided with a sealing ring groove, and a sealing ring is arranged in the sealing ring groove and used for forming a seal between the hole wall and the outer pipe wall of the joint sleeve.

3. The valve group for sewage treatment as claimed in claim 1, wherein a recessed structure is disposed on the second valve body along the direction of the second flow channel, the recessed depth is greater than the wall thickness of the second valve body, and a handle structure is disposed on the recessed structure.

4. The valve block set dedicated for sewage water of claim 3, wherein the handle structure is integrally formed to an outer sidewall of the second valve body.

5. The valve group special for sewage water of claim 3 wherein the handle structure is arranged on the same side as the hand wheel.

6. The valve block of claim 3 or 5, wherein the handle structure is arranged in a direction perpendicular to the second flow channel.