阅读说明：本技术 倒置桶疏水阀 (Drainage valve of inverted bucket ) 是由 席云波 杨振蔚 吴珍 于 2020-08-11 设计创作，主要内容包括：本发明公开了一种倒置桶疏水阀,包括阀体、阀盖、倒置桶及连接机构,阀体与阀盖气密连接并形成集水腔,集水腔连通介质进入管道及介质排出管道,倒置桶设于集水腔内,连接机构连接倒置桶及介质排出管道,介质排出管道上设有直角转折部,直角转折部分别连通第一通路、第二通路及第三通路,第三通路的开口处设置密封盖,第一通路内设有拉杆,拉杆贯通第一通路至集水腔内,拉杆的上段设有可上下移动的柱塞；连接机构包括铰链座、杠杆及连杆,铰链座固定设于阀盖的底面,连杆设于倒置桶的顶面,杠杆铰接于铰链座上,杠杆的左右端分别铰接拉杆和连杆。本发明属于疏水阀领域,与现有技术相比的优点在于：灵敏度高且灵敏度可调。(The invention discloses an inverted bucket drain valve, which comprises a valve body, a valve cover, an inverted bucket and a connecting mechanism, wherein the valve body is hermetically connected with the valve cover to form a water collecting cavity, the water collecting cavity is communicated with a medium inlet pipeline and a medium outlet pipeline, the inverted bucket is arranged in the water collecting cavity, the connecting mechanism is connected with the inverted bucket and the medium outlet pipeline, the medium outlet pipeline is provided with a right-angle turning part, the right-angle turning part is respectively communicated with a first passage, a second passage and a third passage, an opening of the third passage is provided with a sealing cover, a pull rod is arranged in the first passage, the pull rod penetrates through the first passage to the water collecting cavity, and the upper section of the pull rod is provided with a plunger capable of moving up and down; the connecting mechanism comprises a hinge seat, a lever and a connecting rod, the hinge seat is fixedly arranged on the bottom surface of the valve cover, the connecting rod is arranged on the top surface of the inverted barrel, the lever is hinged on the hinge seat, and the left end and the right end of the lever are respectively hinged with the pull rod and the connecting rod. The invention belongs to the field of drain valves, and compared with the prior art, the invention has the advantages that: the sensitivity is high and adjustable.)

1. The utility model provides an invert bucket trap, includes valve body (1), valve gap (2), inverts bucket (3) and coupling mechanism (4), valve body (1) and valve gap (2) airtight connection and form water-collecting chamber (5), water-collecting chamber (5) are equipped with the medium entering pipeline (6) and the medium discharge pipe way (7) of intercommunication, invert bucket (3) and be opening down and locate perpendicularly in water-collecting chamber (5), coupling mechanism (4) are connected invert the blind end of bucket (3) and the entry of medium discharge pipe way (7), its characterized in that: the medium discharge pipeline (7) is provided with a right-angle turning part (8), the right-angle turning part (8) is respectively communicated with a first passage (9) which vertically faces downwards and a second passage (10) which horizontally faces downwards, the right-angle turning part (8) is also communicated with a vertical upward third passage (11), the third passage (11) penetrates through the valve cover (2), a detachable sealing cover (12) is arranged at the opening of the third passage (11), a pull rod (13) is arranged in the first passage (9), the diameter of the pull rod (13) is smaller than that of the first passage (9), the pull rod (13) penetrates through the first passage (9) to the water collecting cavity (5), the upper section of the pull rod (13) is provided with a plunger (14) capable of moving up and down, the plunger (14) is positioned in the right-angle turning part (8) and the third passage (11), and the diameter of the plunger is larger than that of the first passage (9);

the connecting mechanism (4) comprises a hinge seat (15), a lever (16) and a connecting rod (17), the hinge seat (15) is fixedly arranged on the bottom surface of the valve cover (2) and is vertically arranged downwards, the connecting rod (17) is arranged on the top surface of the inverted barrel (3), the middle part of the lever (16) is hinged to the hinge seat (15), the left end of the lever (16) is hinged to the upper end of the connecting rod (17), and the right end of the lever (16) is hinged to the lower end of the pull rod (13);

when the inverted barrel (3) is in contact with the bottom surface of the valve body (1), the plunger (14) is separated from the first passage (9).

2. The inverted bucket trap of claim 1, wherein: the length of a power arm from the hinge seat (15) to the connecting rod (17) is greater than that of a resistance arm from the hinge seat (15) to the pull rod (13), and the distance from the hinged position of the connecting rod (17) and the lever (16) to the bottom surface of the valve cover (2) is greater than that from the plunger (14) to the first passage (9).

3. The inverted bucket trap of claim 1 or 2, wherein: the upper segment of pull rod (13) is the thread section, the inside of plunger (14) is the screw thread end, plunger (14) threaded connection pull rod (13).

4. The inverted bucket trap of claim 3, wherein: the plunger (14) is in a cone shape which is gradually reduced downwards, and a hexagonal bulge (18) is fixedly arranged on the top surface of the plunger (14).

5. The inverted bucket trap of claim 1 or 2, wherein: the connecting rod (17) and the inverted bucket (3) can rotate relatively.

6. The inverted bucket trap of claim 5, wherein: the lower extreme of connecting rod (17) is fixed to be equipped with and is coaxial movable davit (19) that sets up, the upper end area cap of movable davit (19), and the lower extreme is connected with the nut, movable davit (19) run through invert bucket (3), and rather than swing joint.

7. The inverted bucket trap of claim 1 or 2, wherein: the joint of the right-angle turning part (8) and the first passage (9) is of a reducing structure which is gradually reduced towards the first passage (9).

Technical Field

The invention relates to the technical field of drain valves, in particular to an inverted bucket drain valve.

Background

The steam trap is an improved energy-saving device for automatically preventing steam from being lost and effectively discharging condensed water in time. The inverted bucket drain valve (or called inverted bucket drain valve) is one kind of mechanical drain valve, and its interior is equipped with an inverted bucket whose opening is downward and used as liquid level sensing element, and the inverted bucket is connected with lever and can be used for driving valve core to open and close valve. The inverted bucket type trap can exhaust air, is not afraid of water hammer, and has good antifouling performance. The super-cooling degree is small, the steam leakage rate is small, and the maximum back pressure rate is high, so that the method is widely applied to steam pipe networks.

However, inverted bucket traps still have disadvantages: because the connecting piece that the valve was opened to the drum trap of inversion is mostly the shaft-like, mostly hangs and connects or articulated, when the drum of inversion floated, the valve rod upwards pressed, and its convex jam head blockked up the valve port, accomplished and closed the valve. The sensitivity of the trap is not as good as that of a free floating ball type trap, and the opening and closing sensitivity is complex to adjust, so that the whole valve body needs to be opened, and the flexibility is poor in the use process.

Disclosure of Invention

The invention aims to solve the technical problem of overcoming the technical defects and provides the inverted bucket drain valve with high sensitivity and adjustable sensitivity.

In order to achieve the purpose, the invention adopts the technical scheme that: this bucket trap is invertd in design, include valve body, valve gap, invert bucket and coupling mechanism, the valve body is connected with valve gap airtight and forms the water-collecting chamber, the water-collecting chamber is equipped with the medium entering pipeline and the medium discharge pipe way of intercommunication, invert the bucket and be the opening downwards and locate perpendicularly the water-collecting intracavity, coupling mechanism connects invert the blind end of bucket and the entry of medium discharge pipe way, its characterized in that: the medium discharge pipeline is provided with a right-angle turning part, the right-angle turning part is respectively communicated with a first passage which is vertically downward and a second passage which is horizontally upward, the right-angle turning part is also communicated with a third passage which is vertically upward, the third passage penetrates through the valve cover, a detachable sealing cover is arranged at an opening of the third passage, a pull rod is arranged in the first passage, the diameter of the pull rod is smaller than that of the first passage, the pull rod penetrates through the first passage to a water collecting cavity, the upper section of the pull rod is provided with a plunger which can move up and down, the plunger is positioned in the right-angle turning part and the third passage, and the diameter of the plunger is larger than that of the first passage;

the connecting mechanism comprises a hinge seat, a lever and a connecting rod, the hinge seat is fixedly arranged on the bottom surface of the valve cover and is vertically and downwards arranged, the connecting rod is arranged on the top surface of the inverted bucket, the middle part of the lever is hinged to the hinge seat, the left end of the lever is hinged to the upper end of the connecting rod, and the right end of the lever is hinged to the lower end of the pull rod;

when the inverted barrel is in contact with the bottom surface of the valve body, the plunger is arranged separately from the first passage.

Further, the length of a power arm from the hinge seat to the connecting rod is larger than that of a resistance arm from the hinge seat to the pull rod, and the distance from the hinged position of the connecting rod and the lever to the bottom surface of the valve cover is larger than that from the plunger to the first passage.

Furthermore, the upper section of the pull rod is a thread section, the inside of the plunger is a threaded end, and the plunger is in threaded connection with the pull rod.

Further, the plunger is in a tapered shape which is gradually reduced downwards, and a hexagonal protrusion is fixedly arranged on the top surface of the plunger.

Further, the connecting rod and the inverted bucket can rotate relatively.

Furthermore, the lower end of the connecting rod is fixedly provided with a movable suspension post which is coaxially arranged, the upper end of the movable suspension post is provided with a cap, the lower end of the movable suspension post is connected with a nut, and the movable suspension post penetrates through the inverted barrel and is movably connected with the inverted barrel.

Furthermore, the joint of the right-angle turning part and the first passage is a reducing structure which is gradually reduced towards the first passage.

After adopting the structure, compared with the prior art, the invention has the advantages that: compared with the existing inverted bucket drain valve, the structure of the connecting piece for controlling the opening of the medium discharge pipeline is improved, so that the inverted bucket drain valve is more in line with the lever labor-saving principle, the plunger is descended to block the first passage by utilizing the rising of the inverted bucket, and thus steam is blocked, and the inverted bucket drain valve has better sealing effect and sensitivity; and the motion amplitude of the pull rod can be controlled by adjusting the position of the plunger on the pull rod, so that the inverted bucket can be plugged when the motion amplitude is small, and the inverted bucket is simple to adjust and flexible to use.

Drawings

FIG. 1 is a schematic diagram of the inverted bucket trap of the present invention.

FIG. 2 is an enlarged view of a portion A of the inverted bucket trap of the present invention.

FIG. 3 is an enlarged view of portion B of the inverted bucket trap of the present invention.

FIG. 4 is an enlarged view of a portion of the attachment mechanism of the inverted bucket trap of the present invention.

As shown in the figure: 1. the device comprises a valve body, a valve cover, a valve body 3, an inverted barrel, a valve body 4, a connecting mechanism 5, a water collecting cavity, a valve body 6, a medium inlet pipeline, a valve body 7, a medium outlet pipeline, a right-angle turning part 8, a first passage 9, a second passage 10, a third passage 11, a sealing cover 12, a connecting rod 13, a pull rod 14, a plunger 15, a hinge seat 16, a lever 17, a connecting rod 18, a hexagonal bulge 19, a movable hanging column 20, an exhaust port 21, a filter screen 22 and a pollution discharge screw plug.

Detailed Description

The following description is only a preferred embodiment of the present invention, and does not limit the scope of the present invention, and the present invention is further described with reference to the accompanying drawings and embodiments.

Examples, see FIGS. 1-4: the drain valve of the inverted bucket comprises a valve body 1, a valve cover 2, the inverted bucket 3 and a connecting mechanism 4, wherein the valve body 1 and the valve cover 2 are fixed through bolts and are in airtight connection to form a water collecting cavity 5, the water collecting cavity 5 is provided with a medium inlet pipeline 6 and a medium outlet pipeline 7 which are communicated, a filter screen 21 is arranged at the position where the medium inlet pipeline 6 is communicated with the water collecting cavity 5, and the filter screen 21 can isolate impurities; the filter screen 21 is fixedly connected with the sewage drainage plug screw 22, the sewage drainage plug screw 22 is hermetically connected with the valve body 1, the inverted barrel 3 is downwards opened and vertically arranged in the water collecting cavity 5, the top surface of the inverted barrel 3 is provided with an air outlet 20, the connecting mechanism 4 is connected with the closed end of the inverted barrel 3 and the inlet of the medium discharge pipeline 7, the medium discharge pipeline 7 is provided with a right-angle turning part 8, the right-angle turning part 8 is respectively communicated with a vertically downward first passage 9 and a horizontal second passage 10, the right-angle turning part 8 is also communicated with a vertically upward third passage 11, the third passage 11 penetrates through the valve cover 2, the opening of the third passage 11 is provided with a detachable sealing cover 12, the sealing cover 12 can be connected with the valve cover 2 in a threaded connection manner, and a sealing ring can be additionally arranged to improve the air tightness if necessary; a pull rod 13 is arranged in the first passage 9, the diameter of the pull rod 13 is smaller than that of the first passage 9, the pull rod 13 needs to move in the first passage 9, and the discharge of gas and liquid cannot be hindered; the pull rod 13 penetrates through the first passage 9 to the water collecting cavity 5, a plunger 14 capable of moving up and down is arranged at the upper section of the pull rod 13, and the adjustable plunger 14 is arranged, so that the sensitivity of the connecting mechanism 4 is adjusted; the plunger 14 is positioned in the right-angle turning part 8 and the third passage 11, and has a diameter larger than that of the first passage 9, and the plunger 14 needs to block the first passage 9 and therefore needs to be larger than the first passage 9;

the connecting mechanism 4 comprises a hinge seat 15, a lever 16 and a connecting rod 17, the hinge seat 15 is fixedly arranged on the bottom surface of the valve cover 2 through threaded connection and is vertically arranged downwards, the connecting rod 17 is arranged on the top surface of the inverted barrel 3, the middle part of the lever 16 is hinged on the hinge seat 15, the left end of the lever 16 is hinged with the upper end of the connecting rod 17, and the right end of the lever 16 is hinged with the lower end of the pull rod 13;

when the inverted bucket 3 is in contact with the bottom surface of the valve body 1, the plunger 14 is disposed apart from the first passage 9.

The length of a power arm from the hinge seat 15 to the connecting rod 17 is greater than that of a resistance arm from the hinge seat 15 to the pull rod 13, the distance from the hinged position of the connecting rod 17 and the lever 16 to the bottom surface of the valve cover 2 is greater than that from the plunger 14 to the first passage 9, the sensitivity of the device can be improved by adopting a labor-saving lever 16, and the opposite force arm arrangement can also be adopted, so that the sensitivity is reduced and the movement effect is improved;

the upper section of the pull rod 13 is a thread section, the interior of the plunger 14 is a threaded end, the plunger 14 is in threaded connection with the pull rod 13, the air tightness between the plunger 14 and the pull rod 13 is kept through threads, the position of the plunger 14 can be adjusted through the threads, the plunger 14 is in a tapered shape which is gradually reduced downwards, a hexagonal boss 18 is fixedly arranged on the top surface of the plunger 14, and the hexagonal boss 18 can be matched with a sleeve for use, so that the plunger 14 is convenient to adjust;

the connecting rod 17 with but the inversion bucket 3 relative rotation, the lower extreme of connecting rod 17 is fixed to be equipped with and is the coaxial movable davit 19 that sets up, the upper end of movable davit 19 is capped, and the lower extreme is connected with the nut, movable davit 19 runs through inversion bucket 3, and rather than swing joint, and this kind of connected mode wide application can make inversion bucket 3 and connecting rod 17 slow down the torsional stress who receives in current trap structure.

When in specific use, firstly, a user connects the medium inlet pipeline 6 with an external steam pipeline in an airtight way; when the equipment is just started, the water collecting cavity 5 is in a hollow state, the inverted barrel 3 sinks, the connecting rod 17 drives the lever 16 to press downwards, the pull rod 13 is pushed upwards, the plunger 14 is separated from the first passage 9, the second passage 10 is communicated with the first passage 9, air can be quickly discharged from the medium discharge pipeline 7, and quick starting is realized;

after the equipment is started, condensed water enters the drain valve, the inverted bucket 3 is still in a sinking position at the moment, the condensed water can slowly cover the inverted bucket 3 under the working pressure difference, and the inverted bucket 3 cannot float, so that the condensed water can be discharged out of the pipeline 7 through a medium; when steam enters the inverted barrel 3, the inverted barrel 3 generates upward buoyancy, the connecting rod 17 moves upwards to drive the lever 16 to pull the pull rod 13 downwards, and the plunger 14 blocks the first passage 9, so that the steam cannot leak;

when one part of steam is discharged from an exhaust port 20 arranged at the top of the inverted barrel 3, the other part of steam becomes condensed water and the condensed water level rises, the inverted barrel 3 sinks, the connecting rod 17 drives the lever 16 to press downwards, so that the pull rod 13 is pushed upwards, the first passage 9 is opened, and the condensed water is continuously discharged;

when the sensitivity of the inverted barrel 3 needs to be adjusted, the sealing cover 12 is opened, a socket wrench is used for clamping the hexagonal bulge 18 of the plunger 14, and the plunger 14 is rotated; when the sensitivity needs to be reduced, the plunger 14 is far away from the first passage 9, and at the moment, the inverted barrel 3 needs a longer moving distance to drive the pull rod 13 to block the first passage 9; when the sensitivity needs to be improved, the plunger 14 is close to the first passage 9 but cannot be directly blocked, and at the moment, the inverted barrel 3 only needs a short lifting distance to drive the pull rod 13 to block the first passage 9.

The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.