CN111237512B

CN111237512B - Slow-draining air valve capable of being automatically overhauled

Info

Publication number: CN111237512B
Application number: CN202010143413.0A
Authority: CN
Inventors: 不公告发明人
Original assignee: Jiangsu Damo Semiconductor Technology Co ltd
Current assignee: Jiangsu Damo Semiconductor Technology Co.,Ltd.
Priority date: 2020-03-04
Filing date: 2020-03-04
Publication date: 2021-11-09
Anticipated expiration: 2040-03-04
Also published as: CN111237512A

Abstract

The invention discloses a self-overhauling slow-exhaust type air valve which comprises a valve body, a valve rod, a connecting plate and a top plate, wherein the left side and the right side of the valve body are respectively connected with a left connecting pipe and a right connecting pipe in a welding mode, a flow passage is arranged inside the valve body, a filter screen is arranged on the left side inside the flow passage, a baffle is arranged above the inside of the flow passage, the front side of a rack is connected with a connecting gear in a meshing mode, a rotating shaft penetrates through the inside of the connecting gear, the top plate is connected to the top of the valve body, and a fixing hole is formed in the connecting plate. This formula of slowly arranging air valve that can overhaul by oneself, the inside left side of runner is provided with the filter screen, when rivers lead to, can filter the interception to the impurity that the aquatic contains like this, has guaranteed the availability factor of later stage to water, has also improved the flexibility of this air valve, is bolted connection between filter screen and the runner simultaneously, when the filter screen appears damaging, conveniently dismantles the change, brings conveniently for staff's operation.

Description

Slow-draining air valve capable of being automatically overhauled

Technical Field

The invention relates to the technical field of air valves, in particular to a slow-release air valve capable of being overhauled automatically.

Background

The air valve is a special valve for preventing the pressure reducing wave in the transient process from generating negative pressure in the pipe, air is sucked when the pressure in the pipe is lower than the atmospheric pressure, air is exhausted when the pressure in the pipe is increased to be higher than the atmospheric pressure, a certain amount of gas is usually dissolved in water, and in the water delivery process, a certain amount of gas is also brought into the pipe along with water flow, is mixed in the water flow and is gradually released and accumulated at the top of the pipe, so that the additional loss in the water delivery process is easily increased, the gas is required to be exhausted in time through the air valve, and the slow exhaust type air valve is only one type of the air valves.

But present formula air valve of slowly arranging still has some weak points in the use, for example, be not convenient for filter the water that passes through, do not have filtration treatment's function, lead to the impurity of aquatic can circulate along with water, the follow-up availability factor to water has been influenced, and under the air valve appears blockking up and can not carry out the exhaust condition to gas, be not convenient for overhaul the operation, need the staff to unpack the air valve apart, the work load that has so not only increased the staff, also reduced the practicality to the air valve, so we have provided a formula air valve of slowly arranging that can overhaul by oneself, so that solve the problem that proposes in the aforesaid.

Disclosure of Invention

The invention aims to provide a slow-release air valve capable of being overhauled by self, and the air valve is used for solving the problems that the air valve in the prior market is inconvenient to filter passing water, has no filtering treatment function, causes impurities in the water to flow along with the water, influences the subsequent use efficiency of the water, is inconvenient to overhaul and needs to be disassembled by a worker under the condition that the air valve is blocked and cannot discharge gas, so that the workload of the worker is increased, and the practicability of the air valve is reduced.

In order to achieve the purpose, the invention provides the following technical scheme: a slow-release air valve capable of being overhauled by self comprises a valve body, a valve rod, a connecting plate and a top plate, wherein the left side and the right side of the valve body are respectively connected with a left connecting pipe and a right connecting pipe in a welding mode, a flow passage is formed in the valve body, a filter screen is installed on the left side of the inside of the flow passage, a baffle is arranged above the inside of the flow passage, the bottom of the valve rod is connected with the baffle, a fixture block is installed on the outer wall of the valve rod and connected with the valve body through a groove, the groove is formed in the inner wall of the valve body, the top of the valve rod is connected with a fixing plate, an elastic spring is installed right above the fixing plate, a limiting rod is arranged on the outer side of the elastic spring, the bottom of the connecting plate is connected with the fixing plate through the elastic spring, a vertical plate is arranged above the connecting plate, a rack is arranged inside the vertical plate, and the front side of the rack is meshed with a connecting gear, and the inside of connecting the gear is run through and is had the pivot, the left end of pivot is connected with the rotary rod, and the rotary rod keeps away from the one end of pivot and installs the knob, be provided with the connecting sleeve pole on the outer wall of rotary rod, and all seted up the spacing groove on the inside of connecting sleeve pole and the outer wall of valve body to the internal connection of spacing groove has the check lock lever, the roof is connected in the top of valve body, the fixed orifices has been seted up to the inside of connecting plate.

Preferably, the connection mode of the filter screen and the flow channel is bolt connection, and the flow channel is distributed in a bending shape.

Preferably, the baffle and the valve rod are connected by welding, and the size of the baffle is matched with the size of the top of the flow channel.

Preferably, the connection mode of the fixture block and the valve rod is welding, the fixture block and the valve body form a sliding structure through a groove, the fixture block is T-shaped, the top of the valve body and the top plate are connected through bolts, and the top plate is porous.

Preferably, the fixed plate and the valve rod are of an integrated structure, and the fixed plate and the connecting plate form a telescopic structure through an elastic spring.

Preferably, the connecting mode of the limiting rod and the fixing plate is welding, the size of the limiting rod is matched with that of the fixing hole in the connecting plate, and the fixing holes are distributed in the connecting plate at equal angles.

Preferably, the connected mode of riser and connecting plate is the welding, and the inside of riser is hollow form to there is the interval all the time between the top of riser and the roof, the inner wall of connecting plate and valve body is sliding connection, and the structure of the link of connecting plate and valve body is the same with the structure of fixture block.

Preferably, the connection mode of the rotating rod, the rotating shaft and the connecting sleeve is welded, and the connection mode of the rotating shaft and the valve body is bearing connection.

Preferably, the central axes of the connecting sleeve rod and the rotating rod are located on the same straight line, the limiting grooves in the connecting sleeve rod are distributed at equal angles, and the connecting mode of the limiting grooves and the locking rod is threaded.

Compared with the prior art, the invention has the beneficial effects that: the self-overhauling slow-discharging air valve is provided with a slow-discharging air valve;

(1) the flow channel is arranged in the valve body and is distributed in the valve body in a bent manner, so that when water flows through, the resistance of water is large, the resistance of the water to gas is small, the air valve is favorable for exhausting and unfavorable for draining, and the eruption phenomenon of gas-liquid two-phase flow at the moment of closing the air valve can be effectively reduced, so that the quick suction and slow drainage functions of the air valve are enhanced, and the normal use of the air valve is ensured;

(2) the filter screen is arranged on the left side inside the flow channel, so that impurities contained in water can be filtered and intercepted when the water flows through, the later-stage water use efficiency is guaranteed, the flexibility of the air valve is improved, meanwhile, the filter screen and the flow channel are connected through the bolts, when the filter screen is damaged, the air valve is convenient to disassemble and replace, and convenience is brought to operation of workers;

(3) the top of connecting plate is provided with the riser, and the inside of riser is provided with the rack, and the rack is connected for the meshing with the connecting gear on the pivot outer wall, appear blockking up under the unable normal carminative circumstances in this air valve like this, can rotate the pivot, it is rotatory together to make the pivot drive connecting gear, thereby drive rack and riser through connecting the gear and upwards or move down together, it moves together to drive the connecting plate through the riser, and then make the inside fixed orifices of connecting plate contact with the gag lever post on the fixed plate, make the inside plug of fixed orifices discharge, realize the self-service maintenance operation of this air valve, not only need unpack this air valve apart can overhaul, the practicality of this air valve has also been improved.

Drawings

FIG. 1 is a schematic view of an overall main sectional structure of a self-service slow-release air valve according to the present invention;

FIG. 2 is an enlarged schematic view of the air valve with a slow release type for self-service maintenance shown in FIG. 1;

FIG. 3 is a schematic view of a self-service connection between a connection plate and a fixing hole of a slow-release air valve according to the present invention;

FIG. 4 is a schematic view of a left side sectional structure of the connection plate and the vertical plate of the self-overhauled slow-draining air valve of the present invention;

FIG. 5 is a schematic view of a top-down structure of a self-service connection between a valve rod and a clamping block of a slow-release air valve;

FIG. 6 is a left side view schematic diagram of the connection between the flow passage of the self-service slow-release air valve and the filter screen according to the present invention;

FIG. 7 is a schematic view of a left side sectional structure of a self-service rotary rod and a limit groove connection of a slow-release air valve according to the present invention.

In the figure: 1. a valve body; 2. a left connecting pipe; 3. a right connecting pipe; 4. a flow channel; 5. filtering with a screen; 6. a valve stem; 7. a baffle plate; 8. a clamping block; 9. a groove; 10. a fixing plate; 11. an elastic spring; 12. a limiting rod; 13. a connecting plate; 14. a vertical plate; 15. a rack; 16. a connecting gear; 17. a rotating shaft; 18. rotating the rod; 19. a knob; 20. connecting sleeves; 21. a limiting groove; 22. a locking lever; 23. a top plate; 24. and (7) fixing holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the 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. 1-7, the present invention provides a technical solution: a slow-exhaust air valve capable of being overhauled by self comprises a valve body 1, a left connecting pipe 2, a right connecting pipe 3, a flow channel 4, a filter screen 5, a valve rod 6, a baffle 7, a fixture block 8, a groove 9, a fixing plate 10, an elastic spring 11, a limiting rod 12, a connecting plate 13, a vertical plate 14, a rack 15, a connecting gear 16, a rotating shaft 17, a rotating rod 18, a knob 19, a connecting sleeve rod 20, a limiting groove 21, a locking rod 22, a top plate 23 and a fixing hole 24, wherein the left side and the right side of the valve body 1 are respectively connected with the left connecting pipe 2 and the right connecting pipe 3 in a welding manner, the flow channel 4 is arranged inside the valve body 1, the filter screen 5 is arranged on the left side inside the flow channel 4, the baffle 7 is arranged above the inside the flow channel 4, the bottom of the valve rod 6 is connected with the baffle 7, the fixture block 8 is arranged on the outer wall of the valve rod 6, the fixture block 8 is connected with the valve body 1 through the groove 9, and the groove 9 is arranged on the inner wall of the valve body 1, the top of the valve rod 6 is connected with a fixed plate 10, an elastic spring 11 is arranged right above the fixed plate 10, and the outer side of the elastic spring 11 is provided with a limit rod 12, the bottom of the connecting plate 13 is connected with the fixed plate 10 through the elastic spring 11, a vertical plate 14 is arranged above the connecting plate 13, and a rack 15 is arranged inside the vertical plate 14, the front side of the rack 15 is engaged and connected with a connecting gear 16, a rotating shaft 17 penetrates through the inside of the connecting gear 16, the left end of the rotating shaft 17 is connected with a rotating rod 18, and one end of the rotating rod 18 far away from the rotating shaft 17 is provided with a knob 19, the outer wall of the rotating rod 18 is provided with a connecting sleeve rod 20, the inner part of the connecting sleeve rod 20 and the outer wall of the valve body 1 are both provided with a limiting groove 21, a locking rod 22 is connected inside the limiting groove 21, a top plate 23 is connected to the top of the valve body 1, and a fixing hole 24 is formed inside the connecting plate 13;

the filter screen 5 and the flow passage 4 are connected by bolts, and the flow passage 4 is distributed in a bent shape, so that when water flows through, the resistance of water is large, and the resistance to gas is small, thereby being beneficial to exhaust and not beneficial to drainage, effectively reducing the eruption phenomenon of gas-liquid two-phase flow at the moment of closing the air valve, enhancing the quick suction and slow drainage functions of the air valve and ensuring the normal use of the air valve;

the baffle 7 and the valve rod 6 are connected in a welding mode, and the size of the baffle 7 is matched with that of the top of the flow passage 4, so that the baffle 7 and the valve rod 6 are connected more firmly, the phenomenon of falling off in the using process is effectively prevented, and meanwhile, a closed state can be formed between the baffle 7 and the flow passage 4 under the condition of no gas, and the normal use of the air valve is ensured;

the connection mode of the fixture block 8 and the valve rod 6 is welding, the fixture block 8 and the valve body 1 form a sliding structure through the groove 9, the fixture block 8 is in a T shape, the connection mode of the top of the valve body 1 and the top plate 23 is in bolt connection, and the top plate 23 is porous, so that when the valve rod 6 moves up and down, the valve rod can be more stable along with the sliding of the fixture block 8, the phenomenon of shaking in the moving process of the valve rod 6 is effectively prevented, and the stable use of the air valve is further ensured;

the fixed plate 10 and the valve rod 6 are of an integrated structure, the fixed plate 10 and the connecting plate 13 form a telescopic structure through the elastic spring 11, so that the fixed plate 10 and the valve rod 6 are connected more firmly, and meanwhile, when gas enters, the elastic spring 11 can be extruded through the resistance of the gas, so that the distance between the baffle 7 and the flow channel 4 is increased, and the normal discharge of the gas is ensured;

the connecting mode of the limiting rod 12 and the fixing plate 10 is welding, the size of the limiting rod 12 is matched with the size of the fixing hole 24 in the connecting plate 13, and the fixing hole 24 is distributed in the connecting plate 13 at equal angles, so that when the fixing hole 24 is blocked to influence normal gas discharge, the fixing hole 24 can be communicated through contact separation of the limiting rod 12, normal gas discharge is ensured, convenience is brought to operation of workers, and the practicability of the air valve is improved;

the connecting mode of the vertical plate 14 and the connecting plate 13 is welding, the interior of the vertical plate 14 is hollow, an interval exists between the top of the vertical plate 14 and the top plate 23 all the time, the connecting plate 13 is in sliding connection with the inner wall of the valve body 1, and the structure of the connecting end of the connecting plate 13 and the valve body 1 is the same as that of the fixture block 8, so that the firmness of connection between the vertical plate 14 and the connecting plate 13 is ensured, meanwhile, the connecting plate 13 can be more stable when moving up and down, and further, the vertical plate 14 can be more stable when moving;

the connecting modes of the rotating rod 18, the rotating shaft 17 and the connecting sleeve rod 20 are welding, and the connecting mode of the rotating shaft 17 and the valve body 1 is bearing connection, so that the stability of the rotating shaft 17 in use is better, and the integral stability of the air valve in use is further ensured;

the axis of connecting sleeve pole 20 and rotary rod 18 is located same straight line, and the inside angular distribution such as spacing groove 21 of connecting sleeve pole 20 to spacing groove 21 and check lock lever 22's connected mode is threaded connection, is convenient for carry on spacing fixed to connecting sleeve pole 20, thereby easily fixes countershaft 17, effectively prevents to appear self-rotation's phenomenon when not using.

The working principle of the embodiment is as follows: when the self-overhauling slow-discharging air valve is used, as shown in fig. 1 and 6, firstly, a worker connects and fixes the left connecting pipe 2 and the right connecting pipe 3 on the left side and the right side of the valve body 1 with corresponding pipelines respectively to ensure the stability of the air valve in subsequent use, when water flows through the flow passage 4 in the valve body 1, the flow passage 4 is distributed in a bent shape, so that the resistance of water is large, and the resistance of gas is small, so that it is favourable for exhausting and is not favourable for discharging water, therefore, the eruption phenomenon of gas-liquid two-phase flow at the moment of closing the air valve can be effectively reduced, the quick absorption and slow exhaust functions of the air valve are enhanced, the normal use of the air valve is ensured, and because the filter screen 5 is arranged at the left side in the flow passage 4, impurities contained in water can be intercepted and filtered, the use efficiency of later-stage water is ensured, and the flexibility of the air valve is improved;

when water enters from the right connecting pipe 3 and is discharged from the left connecting pipe 2, gas flows out from the top of the flow passage 4 upwards, because the gas has resistance, and the size of the top of the flow passage 4 is matched with that of the baffle 7, the gas can push the baffle 7 upwards, so that the baffle 7 drives the valve rod 6 to ascend together, meanwhile, the fixing plate 10 at the top of the valve rod 6 ascends to extrude the elastic spring 11, so that the interval between the baffle 7 and the top of the flow passage 4 is increased, so that the gas can enter, as shown in figure 3, because the fixing hole 24 is arranged inside the connecting plate 13, the gas can be discharged upwards from the fixing hole 24, the top plate 23 is porous, so the gas can be directly discharged outwards through the top plate 23, and along with the difference of the gas resistance, the extrusion degree of the fixing plate 10 to the elastic spring 11 is also different, and the interval between the flow passage 4 and the baffle 7 is also different, therefore, the gas is slowly exhausted, and under the condition of no gas, the baffle 7 can be attached to and closed with the flow channel 4, as shown in fig. 5, as the clamping block 8 is welded on the outer wall of the valve rod 6, the clamping block 8 and the valve body 1 form a sliding structure through the groove 9, and the clamping block 8 is in a T shape, when the valve rod 6 moves, the valve rod 6 can move more stably through the sliding action of the clamping block 8, the phenomenon of shaking is effectively prevented, and the stability of the air valve during use is ensured;

when the air valve is blocked and the air can not be normally discharged, as shown in fig. 2 and 7, a worker firstly rotates the locking rod 22 out of the limiting groove 21 in the connecting sleeve 20 and the limiting groove 21 on the outer wall of the valve body 1, and then turns the knob 19 counterclockwise to make the knob 19 drive the rotating rod 18 and the rotating shaft 17 to rotate together, as the right end of the rotating rod 18 is welded with the rotating shaft 17, the rotating shaft 17 and the connecting gear 16 can be driven to rotate counterclockwise together, as shown in fig. 4, as the connecting gear 16 is meshed with the rack 15 in the vertical plate 14, when the connecting gear 16 rotates counterclockwise, the rack 15 and the vertical plate 14 can be driven to descend together, so that the vertical plate 14 drives the connecting plate 13 to descend together, the connecting plate 13 slides downwards along the inner wall of the valve body 1, and as the baffle 7 and the flow passage 4 are in a closed state, the elastic spring 11 can be extruded, so that the fixing hole 24 in the connecting plate 13 is contacted with the limiting rod 12 on the fixing plate 10, then a worker rotates the knob 19 clockwise, according to the principle, the vertical plate 14 rises to separate the fixing hole 24 in the connecting plate 13 from the limiting rod 12 on the fixing plate 10, the worker can turn the knob 19 forward and backward in a reciprocating manner, so that a blockage in the fixing hole 24 can fall off, the fixing hole 24 is smooth, gas can be normally discharged, the self-maintenance operation of the air valve is realized, the air valve is not required to be disassembled by the worker, convenience is brought to the operation of the worker, the practicability of the air valve is also improved, after the maintenance operation is finished, the worker rotates the locking rod 22 into the limiting groove 21 to limit and fix the connecting sleeve rod 20, and the phenomenon that the connecting sleeve rod 20 rotates by itself in the use process is effectively prevented, the use efficiency of the air valve is further ensured, thereby completing a series of work.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a but slow formula air valve that overhauls by oneself, includes valve body (1), valve rod (6), connecting plate (13) and roof (23), its characterized in that: the left side and the right side of the valve body (1) are respectively connected with a left connecting pipe (2) and a right connecting pipe (3) in a welding manner, a flow channel (4) is arranged inside the valve body (1), a filter screen (5) is installed on the left side inside the flow channel (4), a baffle (7) is arranged above the inside of the flow channel (4), the bottom of the valve rod (6) is connected with the baffle (7), a fixture block (8) is installed on the outer wall of the valve rod (6), the fixture block (8) is connected with the valve body (1) through a groove (9), the groove (9) is formed in the inner wall of the valve body (1), the top of the valve rod (6) is connected with a fixing plate (10), an elastic spring (11) is installed right above the fixing plate (10), a limiting rod (12) is arranged on the outer side of the elastic spring (11), the bottom of the connecting plate (13) is connected with the fixing plate (10) through the elastic spring (11), and the top of the connecting plate (13) is provided with a vertical plate (14), a rack (15) is arranged inside the vertical plate (14), the front side of the rack (15) is meshed with a connecting gear (16), a rotating shaft (17) penetrates through the inside of the connecting gear (16), the left end of the rotating shaft (17) is connected with a rotating rod (18), one end of the rotating rod (18) far away from the rotating shaft (17) is provided with a knob (19), the outer wall of the rotating rod (18) is provided with a connecting loop bar (20), the inside of the connecting loop bar (20) and the outer wall of the valve body (1) are both provided with a limiting groove (21), the inside of the limiting groove (21) is connected with a locking rod (22), the top plate (23) is connected with the top of the valve body (1), the inside of the connecting plate (13) is provided with a fixing hole (24), and the connecting mode of the limiting rod (12) and the fixing plate (10) is welding, the size of the limiting rod (12) is matched with the size of a fixing hole (24) in the connecting plate (13), and the fixing holes (24) are distributed in the connecting plate (13) at equal angles.

2. A self-service slow-venting air valve as claimed in claim 1 wherein: the filter screen (5) and the flow channel (4) are connected through bolts, and the flow channel (4) is distributed in a bent shape.

3. A self-service slow-venting air valve as claimed in claim 1 wherein: the connecting mode of the baffle plate (7) and the valve rod (6) is welding, and the size of the baffle plate (7) is matched with the size of the top of the flow channel (4).

4. A self-service slow-venting air valve as claimed in claim 1 wherein: the connection mode of the fixture block (8) and the valve rod (6) is welding, the fixture block (8) forms a sliding structure with the valve body (1) through the groove (9), the fixture block (8) is T-shaped, the connection mode of the top of the valve body (1) and the top plate (23) is in bolt connection, and the top plate (23) is porous.

5. A self-service slow-venting air valve as claimed in claim 1 wherein: the fixing plate (10) and the valve rod (6) are of an integrated structure, and the fixing plate (10) and the connecting plate (13) form a telescopic structure through the elastic spring (11).

6. A self-service slow-venting air valve as claimed in claim 1 wherein: the connected mode of riser (14) and connecting plate (13) is the welding, and the inside of riser (14) is hollow form to there is the interval all the time between the top of riser (14) and roof (23), the inner wall of connecting plate (13) and valve body (1) is sliding connection, and the structure of the link of connecting plate (13) and valve body (1) is the same with the structure of fixture block (8).

7. A self-service slow-venting air valve as claimed in claim 1 wherein: the connecting mode of the rotating rod (18) and the rotating shaft (17) and the connecting sleeve rod (20) is welding, and the connecting mode of the rotating shaft (17) and the valve body (1) is bearing connection.

8. A self-service slow-venting air valve as claimed in claim 1 wherein: the central axes of the connecting sleeve rod (20) and the rotating rod (18) are positioned on the same straight line, the limiting grooves (21) in the connecting sleeve rod (20) are distributed at equal angles, and the connecting mode of the limiting grooves (21) and the locking rod (22) is threaded.