CN215410385U

CN215410385U - Novel stop valve with non-return effect

Info

Publication number: CN215410385U
Application number: CN202121723443.5U
Authority: CN
Inventors: 陈金钻
Original assignee: Benxing Valve Manufacturing Co ltd
Current assignee: Benxing Valve Manufacturing Co ltd
Priority date: 2021-07-27
Filing date: 2021-07-27
Publication date: 2022-01-04
Anticipated expiration: 2031-07-27

Abstract

The utility model relates to a novel shutoff valve with a non-return effect, which comprises a valve body, wherein a valve cover and a shutoff valve rod are arranged above the valve body, a water inlet channel and a water outlet channel are radially arranged on the valve body, a valve seat which is integrally formed with the valve body is arranged between the water inlet channel and the water outlet channel, a valve port is arranged on the valve seat, a shutoff valve plate which is matched with the valve port and used for controlling the opening and closing of fluid is arranged on the valve seat, the shutoff valve rod vertically penetrates through the valve body and is rotatably arranged in the valve body, the lower end of the shutoff valve rod is connected with the shutoff valve plate, a non-return valve rod which can be arranged on the shutoff valve rod in a vertical sliding manner is arranged on the shutoff valve rod, the lower end of the non-return valve rod penetrates through the shutoff valve plate and is connected with a non-return valve plate used for sealing the valve port, and a limit valve plate which drives the non-return valve rod to ascend when the shutoff valve rod ascends to limit the valve plate to seal the valve plate and seal the valve port is arranged on the shutoff valve rod A bit device.

Description

Novel stop valve with non-return effect

Technical Field

The utility model relates to the field of valves, in particular to a novel shutoff valve with a non-return effect.

Background

The valve is a control part in a fluid conveying system, has the functions of stopping, adjusting, guiding, preventing backflow, stabilizing pressure, shunting or overflowing and relieving pressure and the like, is used for a valve of a fluid control system, and has various varieties and specifications from the simplest stop valve to various valves used in an extremely complicated automatic control system. Referring to fig. 1, 12.2020 and 08.d disclose a shutoff valve having a check effect, the utility model is published under the number CN212107063U, the utility model relates to a stop valve with non-return effect, which comprises a valve body 1 ', a valve cover 2 ' arranged on the valve body 1 ', a first through groove 3 ' is arranged in the valve cover 2 ', a water inlet channel 4 ' and a water outlet channel 5 ' are radially arranged from left to right along the valve body 1 ', a valve seat part 6 'which is integrally formed with the valve body 1' is arranged between the water inlet channel 4 'and the water outlet channel 5', a valve port 7 ' is arranged on the valve seat part 6 ', a first valve plate 8 ' which is matched with the valve port 7 ' to control the on-off of fluid is arranged above the valve seat part 6 ', a first valve rod 9 'is arranged on the upper end surface of the first valve plate 8', a second valve plate 10 'is arranged in the valve body 1', the second valve plate 10 ' is slidably disposed above the valve seat 6 ' and can seal the valve port 7 '.

However, the shut-off valve has the following disadvantages: when this stop valve transformation or change, no longer need the non return function, need continuously control first valve rod 9 'and rise certain distance, just can drive second valve plate 10' and break away from valve seat portion 6 ', this kind of control mode operation complicated through continuously controlling first valve rod 9' and rising drive second valve plate 10 'and break away from valve seat portion 6', need artifical consumption plenty of time to operate, it is inconvenient to use.

SUMMERY OF THE UTILITY MODEL

Therefore, in order to solve the above problems, the present invention provides a novel shutoff valve with a non-return effect.

In order to realize the technical problem, the solution adopted by the utility model is a novel shutoff valve with a non-return effect, which comprises a valve body, wherein a valve cover and a shutoff valve rod are arranged above the valve body, a water inlet channel and a water outlet channel are radially arranged on the valve body, a valve seat which is integrally formed with the valve body is arranged between the water inlet channel and the water outlet channel, a valve port is arranged on the valve seat, a shutoff valve plate which is matched with the valve port and is used for controlling the opening and closing of fluid is arranged on the valve seat, the shutoff valve rod vertically penetrates through the valve body and is rotationally arranged in the valve body, the lower end of the shutoff valve rod is connected with the shutoff valve plate, the non-return valve rod which can be arranged in a vertical sliding manner is arranged on the shutoff valve rod, the lower end part of the non-return valve rod penetrates through the shutoff valve plate and is connected with the non-return valve plate used for sealing the valve port, and the closure valve rod is provided with a limiting device which drives the check valve rod to ascend when the closure valve rod ascends to limit the check valve plate to seal the valve port.

The further improvement is that: the stop device includes: the stop valve is characterized in that a limiting table is arranged at the upper end of the check valve rod, the cut-off valve rod is provided with a stop part matched with the valve body and used for being worn out, and the stop part is arranged on the cut-off valve rod in a radial penetrating mode.

The further improvement is that: the locating part including be used for preventing the locating part breaks away from the spacing portion of shutoff valve rod, can dismantle set up in the portion of sliding on the spacing portion.

The further improvement is that: the limiting part is a minor arc limiting part.

The further improvement is that: the sliding part penetrates out of one end of the intercepting valve rod, and a pull ring is arranged at one end of the intercepting valve rod.

The further improvement is that: and a first sealing element is arranged between the limiting part and the closure valve rod.

The further improvement is that: the middle position of the check valve rod is provided with a boss, the check valve rod is positioned above the boss, a compression spring is sleeved on the boss, and two ends of the compression spring respectively support against the upper end face of the boss and the closure valve rod.

The further improvement is that: and a second sealing element is arranged between the closure valve rod and the check valve rod.

By adopting the technical scheme, the utility model has the beneficial effects that: the limiting part is controlled by a user to slide on the shutoff valve rod, so that the limiting part is matched with the check valve rod, the shutoff valve rod can directly drive the check valve plate to move upwards when moving upwards, the check valve plate does not close the valve port any more, and whether the check function is used or not is conveniently controlled, and then the shutoff valve is conveniently transformed or replaced.

Drawings

FIG. 1 is a drawing of the background of the utility model;

FIG. 2 is a schematic structural diagram of an embodiment of the present invention in normal use;

FIG. 3 is a schematic view of a valve port normally closed according to an embodiment of the present invention;

FIG. 4 is an enlarged view of a portion of the embodiment of the present invention corresponding to the portion A in FIG. 3;

FIG. 5 is a schematic view of the valve port no longer being sealed according to the embodiment of the present invention;

FIG. 6 is a schematic view of a check valve stem and a limiting member in an embodiment of the present invention.

Detailed Description

The utility model will now be further described with reference to the accompanying drawings and specific embodiments.

Example (c);

the utility model provides a novel shutoff valve with non return effect, including

valve body

1, 1 top of valve body is provided with valve gap 2, valve rod 3 dams, valve body 1 has radially seted up inhalant canal 4 and exhalant canal 5, be provided with between inhalant canal 4 and the exhalant canal 5 with 1 integrated into one piece's of valve body disk seat 6, valve port 7 has been seted up on the disk seat 6, be provided with on the disk seat 6 and be used for the shutoff valve plate 8 that control fluid opened and close with the cooperation of valve port 7, valve rod 3 dams and run through valve body 1 perpendicularly and rotate and set up in valve body 1, valve rod 3 lower extreme and the valve plate 8 that dams are connected, the non return valve rod 9 that can slide the setting from top to bottom on the valve rod 3 dams, the tip is worn out to shut down and is connected with the non return valve plate 10 that is used for airtight valve port 7 under the non return valve rod 9.

Be provided with on the valve rod 3 that dams and drive the stop device that the airtight valve port 7 of the ascending restriction check valve plate 10 of check valve rod 9 when the valve rod 3 that dams rises, stop device includes: the 9 upper ends of check valve rod are provided with spacing platform 11, lie in on the valve rod 3 of damming to wear out valve body 1 department be provided with be used for with spacing platform 11 complex locating part 12, locating part 12 radially wears to locate on the valve rod 3 of damming along the valve rod 3 that dams, locating part 12 can dismantle the portion of sliding 14 that sets up on spacing portion 13 including being used for preventing that locating part 12 from breaking away from the valve rod 3, through the screw thread, in order to match check valve rod 9, spacing portion 13 is the spacing portion 13 of minor arc.

Meanwhile, the sliding part 14 penetrates through one end of the intercepting valve rod 3 to be provided with a pull ring for a user to pull and draw 15.

In the present invention, a first sealing ring 16 is disposed between the limiting member 12 and the shutoff valve rod 3, and can be used to prevent fluid leakage.

The middle position of the check valve rod 9 is provided with a boss 17, the check valve rod 9 is sleeved with a compression spring 18 above the boss 17, and two ends of the compression spring 18 respectively support against the upper end surface of the boss 17 and the closure valve rod 3, so that the trend of downward movement is kept under the action of the compression spring 18 in the check valve rod 9, and the check valve plate 10 can better close the valve port 7.

For better leakage prevention, a second sealing ring 19 is provided between the shutoff valve stem 3 and the check valve stem 9.

The working principle is as follows: referring to fig. 2, in normal use, the limiting member 12 is not engaged with the check valve rod 9, and does not limit the check valve rod 9 from sliding in the shutoff valve rod 3, at this time, the hand wheel 20 is rotated to drive the shutoff valve rod 3 to move upwards, and the shutoff valve rod 3 drives the shutoff valve plate to move upwards, so that the shutoff valve plate no longer seals the valve port 7; meanwhile, under the action of gravity and a compression spring 18, the check valve rod 9 drives the check valve plate 10 to sink, so that the check valve plate 10 seals the valve port 7, and at the moment, fluid can enter the water outlet channel 5 from the water inlet channel 4 but cannot flow back, and the check effect is achieved.

Referring to fig. 3, 4 and 5, when the check function is no longer needed, only the limiting member 12 needs to slide toward the check valve rod 9, so that the limiting member 12 is matched with the check valve rod 9, the upper end surface of the limiting portion 13 abuts against the lower end surface of the limiting table 11, at this time, the limiting member 12 limits the check valve rod 9 to sink, when the rotary hand wheel 20 can drive the shutoff valve rod 3 to move upwards, the check valve rod 9 can move upwards along with the shutoff valve rod 3, so that the check valve plate 10 does not seal the valve port 7 any more, and the check valve effect is no longer achieved.

The above description is only an embodiment utilizing the technical content of the present disclosure, and any modification and variation made by those skilled in the art can be covered by the claims of the present disclosure, and not limited to the embodiments disclosed.

Claims

1. The utility model provides a novel shutoff valve with non return effect, includes the valve body, valve body top is provided with the valve gap, dams the valve rod, valve body radially has seted up inhalant canal and exhalant canal, inhalant canal with be provided with between the exhalant canal with valve body integrated into one piece's disk seat, the valve port has been seted up on the disk seat, be provided with on the disk seat with the valve port cooperation is used for the valve plate that dams that control fluid opened and close, the valve rod that dams runs through perpendicularly the valve body just rotate set up in the valve is originally internal, dam the valve rod lower extreme with the valve plate that dams is connected, the non return valve rod that can slide the setting from top to bottom on the valve rod that dams, wear out under the non return valve rod the valve rod that dams is connected with and is used for inclosed the non return valve plate of valve port, its characterized in that: and the closure valve rod is provided with a limiting device which drives the check valve rod to ascend when the closure valve rod ascends to limit the check valve plate to seal the valve port.

2. The novel shutoff valve with non-return effect as claimed in claim 1, characterized in that: the stop device includes: the stop valve is characterized in that a limiting table is arranged at the upper end of the check valve rod, the cut-off valve rod is provided with a stop part matched with the valve body and used for being worn out, and the stop part is arranged on the cut-off valve rod in a radial penetrating mode.

3. The novel shutoff valve with non-return effect as claimed in claim 2, characterized in that: the locating part including be used for preventing the locating part breaks away from the spacing portion of shutoff valve rod, can dismantle set up in the portion of sliding on the spacing portion.

4. The novel shutoff valve with check effect as claimed in claim 3, wherein: the limiting part is a minor arc limiting part.

5. The novel shutoff valve with check effect as claimed in claim 3, wherein: the sliding part penetrates out of one end of the intercepting valve rod, and a pull ring is arranged at one end of the intercepting valve rod.

6. The novel shutoff valve with non-return effect as claimed in claim 2, characterized in that: and a first sealing element is arranged between the limiting part and the closure valve rod.

7. The novel shutoff valve with non-return effect as claimed in claim 1, characterized in that: the middle position of the check valve rod is provided with a boss, the check valve rod is positioned above the boss, a compression spring is sleeved on the boss, and two ends of the compression spring respectively support against the upper end face of the boss and the closure valve rod.

8. The novel shutoff valve with non-return effect as claimed in claim 1, characterized in that: and a second sealing element is arranged between the closure valve rod and the check valve rod.