Float type anti-upstream check valve
阅读说明:本技术 浮筒式防上流止回阀 (Float type anti-upstream check valve ) 是由 刘广和 陈磊 查金平 江鸿 周彪 于 2019-08-13 设计创作,主要内容包括:本发明涉及止回阀技术领域,且公开了浮筒式防上流止回阀,包括阀体,所述阀体底部固定连通有下连接法兰,所述阀体顶部固定连通有上连接法兰,所述下连接法兰与阀体通过螺栓一相连,所述上连接法兰与阀体通过螺栓二相连,所述阀体内活动连接有浮筒,所述浮筒内活动连接有阀杆,所述阀杆底部固定连接有阀栓,所述浮筒两侧顶部边缘固定安装有橡胶垫,两个所述阀体顶部的固定块顶部固定安装有密封垫。通过螺栓一将上连接法兰固定在阀体顶部,通过螺栓二将下连接法兰固定安装在阀体底部,再通过在阀体底部安装挡板,通过挡板固定阀杆,通过阀杆活动连接浮筒,从而达到无需占用水箱以外的场地即可完成水箱进水控制的效果。(The invention relates to the technical field of check valves and discloses a float-type anti-overflow check valve which comprises a valve body, wherein the bottom of the valve body is fixedly communicated with a lower connecting flange, the top of the valve body is fixedly communicated with an upper connecting flange, the lower connecting flange is connected with the valve body through a first bolt, the upper connecting flange is connected with the valve body through a second bolt, a float is movably connected in the valve body, a valve rod is movably connected in the float, the bottom of the valve rod is fixedly connected with a valve bolt, rubber pads are fixedly arranged on the top edges of two sides of the float, and sealing pads are fixedly arranged on the tops of fixing blocks on the tops of the. The upper connecting flange is fixed at the top of the valve body through the first bolt, the lower connecting flange is fixedly installed at the bottom of the valve body through the second bolt, the baffle is installed at the bottom of the valve body, the valve rod is fixed through the baffle, and the float bowl is movably connected with the valve rod through the valve rod, so that the effect of controlling water inlet of the water tank can be achieved without occupying places other than the water tank.)
1. Float-type anti-upstream check valve, including valve body (1), its characterized in that: the bottom of the valve body (1) is fixedly communicated with a lower connecting flange (2), the top of the valve body (1) is fixedly communicated with an upper connecting flange (3), two opposite inner walls of the valve body (1) are fixedly connected with fixing blocks (4), the bottom of the valve body (1) is fixedly provided with a PTFE gasket (22), the upper surface of the left side of the upper connecting flange (3) is provided with a first round hole (5), the surface of the fixing block (4) at the top of the valve body (1) is provided with a first round groove (6), the inner walls of the first round hole (5) and the first round groove (6) are movably connected with a first bolt (7), the lower surface of the left side of the lower connecting flange (2) is provided with a second round hole (8), the surface of the fixing block (4) at the bottom of the valve body (1) is provided with a second round groove (9), and the inner walls of, a third bolt (11) is fixedly connected to the left side surface of the valve body (1), a baffle plate (12) is fixedly connected between the fixing blocks (4) at the bottom of the two valve bodies (1), a columnar groove (13) is arranged at the center of the baffle (12), a valve bolt (14) is fixedly connected with the inner wall of the columnar groove (13), the top of the valve bolt (14) is fixedly connected with a valve rod (15), the outer wall of the valve rod (15) is movably connected with a columnar deep groove (16), the bottom of the columnar deep groove (16) is fixedly provided with a 0-shaped ring (17), the outer wall of the columnar deep groove (16) is fixedly connected with a buoy (19), the floating cylinder (19) is characterized in that rubber pads (18) are fixedly mounted at the top edges of two sides of the floating cylinder (19), a notch (20) is formed in the top of the fixed block (4) at the top of the valve body (1), and a sealing pad (21) is fixedly mounted in the notch (20).
2. The float-type anti-overflow check valve of claim 1, wherein: the buoy (19) is made of stainless steel.
3. The float-type anti-overflow check valve of claim 1, wherein: the valve body (1), the lower connecting flange (2) and the upper connecting flange (3) are all made of steel pipes.
4. The float-type anti-overflow check valve of claim 1, wherein: the distance between the two rubber gaskets (18) is equal to the distance between the two sealing gaskets (21).
5. The float-type anti-overflow check valve of claim 1, wherein: the baffle (12) is long.
6. The float-type anti-overflow check valve of claim 1, wherein: the lower connecting flange (2) and the upper connecting flange (3) are in contact with the valve body (1) and are provided with rubber pads.
7. The float-type anti-overflow check valve of claim 1, wherein: the surfaces of the second bolt (10) and the first bolt (7) are provided with threads, and the inner walls of the second circular groove (9) and the first circular groove (6) are provided with thread grooves.
Technical Field
The invention relates to the technical field of check valves, in particular to a float-type anti-upstream check valve.
Background
Valves are widely used for fluid control, and their function and structure are different according to different conditions and requirements. In particular, the use of check valves is becoming increasingly more automated, and it is becoming common to control the opening and closing of check valves by the flow and pressure of the fluid itself.
When flushing high-level water tanks of high-rise buildings and the like, water flows into the water tank easily through a water outlet pipe of the water tank, a water stop valve is needed, a complex pipeline system is connected to the common check valve in the installation of the occasions, and the installation of the complex pipeline system is completed in places except the water tank.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the float-type anti-overflow check valve which has the advantage of completing water inlet control of the water tank without occupying a place except the water tank, and solves the problem that a traditional water stop valve system needs to occupy a place except the water tank to complete installation of a complex pipeline system.
(II) technical scheme
In order to realize the purpose that the water inlet control of the water tank can be completed without occupying a place except the water tank, the invention provides the following technical scheme: the float-type anti-upstream check valve comprises a valve body, wherein the bottom of the valve body is fixedly communicated with a lower connecting flange, the top of the valve body is fixedly communicated with an upper connecting flange, two opposite inner walls of the valve body are fixedly connected with fixed blocks, a polytetrafluoroethylene gasket is fixedly arranged at the bottom of the valve body, the upper surface of the left side of the upper connecting flange is provided with a first round hole, the surface of the fixed block at the top of the valve body is provided with a first round groove, the inner walls of the first round hole and the first round groove are movably connected with a first bolt, the lower surface of the left side of the lower connecting flange is provided with a second round hole, the surface of the fixed block at the bottom of the valve body is provided with a second round groove, the inner walls of the second round hole and the second round groove are movably connected with a second bolt, the surface of the, column recess inner wall fixedly connected with valve cock, valve cock top fixedly connected with valve rod, valve rod outer wall swing joint has the column deep trouth, column deep trouth bottom fixed mounting has 0 type ring, column deep trouth outer wall fixedly connected with flotation pontoon, flotation pontoon both sides top edge fixed mounting has the rubber pad, two the breach has all been seted up at the fixed block top at valve body top, the inside fixed mounting of breach has sealed the pad.
Preferably, the buoy is made of stainless steel, and the buoy needs to be soaked in water for a long time and must be made of a material which is not easy to corrode, so that frequent replacement of the buoy after corrosion can be avoided.
Preferably, the valve body, the lower connecting flange and the upper connecting flange are all made of steel pipes, and the pressure resistance of a flowing water channel is good due to the fact that water pressure is high.
Preferably, the distance between the two rubber pads is equal to the distance between the two sealing gaskets, and only the rubber pads can abut against the lower surfaces of the sealing gaskets to realize sealing.
Preferably, the baffle is long, and too much space occupied by the baffle affects the flow of water flowing through the valve body, so that the drainage is not smooth.
Preferably, the lower connecting flange, the upper connecting flange and the valve body are respectively provided with a rubber pad in contact, and the connection between steel and iron does not have airtightness, so that the sealing performance can be achieved only by additionally arranging the rubber pads, and the water is prevented from leaking.
Preferably, the surfaces of the second bolt and the first bolt are provided with threads, the inner walls of the second circular groove and the first circular groove are provided with thread grooves, and the lower connecting flange, the upper connecting flange and the valve body can be tightly locked together only by matching the threads on the surfaces of the second bolt with the thread grooves on the inner walls of the second circular groove.
Preferably, the top of the cylindrical deep groove is sealed.
(III) advantageous effects
Compared with the prior art, the invention provides a float-type anti-upstream check valve which has the following beneficial effects:
1. this check valve is prevented upstream by float formula will go up flange through bolt cooperation round hole one and circle recess one and fix at the valve body top, and flange fixed mounting will descend in the valve body bottom through bolt cooperation round hole two and circle recess two, and the rethread is at valve body bottom installation baffle, through the fixed valve rod of baffle, through valve rod swing joint flotation pontoon to reach and need not to occupy the place beyond the water tank and can accomplish the effect of water tank control of intaking.
2. This float-type anti-overflow check valve through seting up the column deep trouth at the flotation pontoon center, cup joints the valve rod in the activity of column deep trouth inside, and the rethread is with valve rod fixed mounting at the valve cock top, can realize that the flotation pontoon slides along the column deep trouth to reach and move up the flotation pontoon and can prevent the rivers upstream with sealed pad contact, move down the flotation pontoon and can allow the stagnant water valve effect of rivers downstream.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic front view of the valve body according to the present invention.
In the figure: 1-valve body, 2-lower connecting flange, 3-upper connecting flange, 4-fixed block, 5-round hole I, 6-round groove I, 7-bolt I, 8-round hole II, 9-round groove II, 10-bolt II, 11-bolt III, 12-baffle, 13-columnar groove, 14-valve bolt, 15-valve rod, 16-columnar deep groove, 17-0 type ring, 18-rubber pad, 19-buoy, 20-notch, 21-sealing pad, 22-tetrafluoro gasket.
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 a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the float-type anti-overflow check valve comprises a
The working principle is that the lower connecting
In conclusion, the upper connecting
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
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.
- 上一篇:一种医用注射器针头装配设备
- 下一篇:一种新型防爆阀