CN217463239U

CN217463239U - Leakage-proof filter valve and heat supply pipeline dirt filtering and discharging device

Info

Publication number: CN217463239U
Application number: CN202221397942.4U
Authority: CN
Inventors: 王杰礼; 付士龙; 王天明
Original assignee: Weihai Frith Fluid Control Technology Co ltd
Current assignee: Weihai Frith Fluid Control Technology Co ltd
Priority date: 2022-06-07
Filing date: 2022-06-07
Publication date: 2022-09-20
Anticipated expiration: 2032-06-07

Abstract

The utility model discloses an anti-leakage filter valve, which comprises a valve body, a valve cover and a diversion cavity, wherein the left end of the valve body is provided with a water inlet connecting pipe, the right end is provided with a water outlet connecting pipe, the upper end of the valve body is fixedly connected with the valve cover, the lower end of the valve body is connected with the flow guide cavity, a valve core cavity is arranged between the valve cover and the flow guide cavity, an anti-leakage device is arranged in the valve core cavity, it is characterized in that a filtering device is arranged between the valve body and a water inlet channel of the water inlet connecting pipe, a water inlet at the upper end of the filtering device is communicated with the lower side wall of the water inlet connecting pipe, the water outlet of the side wall of the filtering device is communicated with the diversion cavity, the utility model also discloses a sewage filtering and discharging device of the heat supply pipeline, the anti-leakage filter valve is characterized by comprising the anti-leakage filter valve, and has the advantages of compact structure, energy conservation, low water supply cost, convenience in installation, high working efficiency and the like due to the adoption of the structure.

Description

Leakage-proof filtering valve and sewage filtering and discharging device for heat supply pipeline

Technical Field

The utility model relates to a heating equipment technical field, specific leak-proof filter valve and heat supply pipeline filth filter discharging equipment that says so.

Background

As is known, in the long-term heat supply process of the existing heat supply pipeline, dirt such as scale and corrosion impurities of the pipeline can be generated in the pipeline, and the dirt can be accumulated in the pipeline and flows into the indoor of the unit user along with hot water without being cleaned for a long time, and further the phenomenon of insufficient heat of the household heating air can be caused, and meanwhile, in order to prevent the heating air of the unit user from leaking and damaging the user, the water leakage prevention valve is usually installed on the water inlet pipeline, so the heat supply unit usually installs a filter valve and a water leakage prevention valve on each unit pipeline, and the substantive deficiency of the structure is that: 1. this kind of strainer valve is usually with the filter screen slope install on the water inlet pipe way, water when the strainer valve, the filter screen through the strainer valve causes certain resistance to hot water, then, reentrant in the leakage-proof valve, and it is indoor and form the secondary resistance to get into unit user through "u" passageway among the leakage-proof valve, leads to heating equipment's energy extravagant: 2. during processing, the filter valve and the anti-leakage valve need to be processed separately, so that the cost is high; 3, when in installation, the filtering valve and the anti-leakage valve are respectively and sequentially installed on the water supply pipeline in a sealing way, so that the installation is complicated, the sealing performance is great and the working efficiency is low.

Disclosure of Invention

The utility model aims at solving the deficiencies of the prior art, providing a compact structure, energy saving, water supply are with low costs, simple to operate, sealing performance is high, work efficiency is high prevents leaking filter valve and heat supply pipeline filth and filters discharging equipment.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides a prevent letting out filter valve, includes valve body 1, valve gap 4 and water

conservancy diversion chamber

5, and 1 left end of valve body is equipped with into water connecting pipe 2, and the right-hand member end is equipped with out

water connecting pipe

3, 1 upper end and valve gap 4 fixed connection of valve body, the lower extreme is connected with the water conservancy diversion chamber be equipped with case chamber 8 between valve gap 4 and the water conservancy diversion chamber 5, be equipped with the leak protection device in the case chamber 8, its characterized in that be equipped with filter equipment between the inhalant canal of valve body and the inhalant connecting pipe 2, filter equipment upper end water inlet with the inhalant connecting pipe downside wall communicates, filter equipment lateral wall delivery port is linked together with the water conservancy diversion chamber to make the flowing water passageway of filter equipment and valve body assemble "U" shape, not only realized filtering, prevent letting out the function, but also reduced the installation number of times, practiced thrift the energy, improved leakproofness and work efficiency height.

Filter equipment is including crossing filter screen section of thick bamboo 39 and sealing 40, valve body one side is equipped with filtering cavity 38, install filter screen section of thick bamboo 39 in the filtering cavity 38, filter cavity 38 upper end and the 2 lateral wall sealing fixed connection of connecting pipe of intaking, the lower extreme is linked together through drain and the 40 sealing fixed connection of sealing, one side through filter screen and water conservancy diversion chamber 5 to do benefit to and filter the water that enters into water conservancy diversion chamber 5 through filter screen section of thick bamboo 39.

Sealing 40 can adopt sealed lid 40, sealed lid 40 and filtration cavity 38 are through screw thread fixed connection to through sealing washer sealing connection, with the impurity that reaches convenient getting rid of filter screen section of thick bamboo 39 bottom or be convenient for take out the effect that filter screen section of thick bamboo 39 carried out the clearance.

Sealing portion 40 still can adopt the ooff valve, the ooff valve with filter cavity bottom threaded connection to do benefit to and get rid of the impurity of filter screen section of thick bamboo 39 bottoms through the ooff valve.

The utility model provides a heat supply pipeline filth filters discharging equipment, includes water inlet pipe, return water pipeline 42, its characterized in that be equipped with on the water inlet pipe as above prevent leaking the strainer valve, prevent leaking the strainer valve lower extreme and be linked together through ooff valve and connecting pipeline 43, connecting pipeline 43 lower extreme is linked together with return water pipeline 42, it has check valve 44 to articulate in the return water pipeline 42, the delivery port of connecting pipeline 43 is linked together through the drainage direction of check valve 44 with return water pipeline 42 to reach the effect that makes things convenient for the filth to discharge.

The anti-leakage device comprises a rectifying sleeve 7, a driving shaft and a supporting plate 11, wherein the rectifying sleeve 7 is positioned in an anti-leakage cavity at the center of a water inlet connecting pipe 2 and a water outlet connecting pipe 3, the axis of the rectifying sleeve 7 is vertical to the axes of the water inlet connecting pipe and the water outlet connecting pipe of a valve body 1, the upper part of the inner cavity of the rectifying sleeve 7 is provided with a connecting hole section, the lower part of the inner cavity of the rectifying sleeve 7 is provided with a water inlet hole section, one side of the rectifying sleeve 7 is provided with a water outlet through hole 12 for discharging water in the water inlet hole section of the rectifying sleeve to a water outlet, the outer wall of the upper end of the rectifying sleeve 7 is hermetically connected with the inner wall of the anti-leakage cavity, the outer wall of the lower part is hermetically connected with the side wall of the lower part of the water outlet connecting pipe through the supporting plate 11, the supporting plate can be fixedly connected with the rectifying sleeve or can be fixedly connected with the side wall of the water outlet connecting pipe, when being fixedly connected with the rectifying sleeve, the upper end of the supporting plate 11 is fixedly connected with a partition plate 15, so as to be beneficial to seal the diversion cavity 5 from the water outlet connecting pipe through the supporting plate, the valve rod 10 penetrates through the rectifying cavity and the valve core cavity 8, the upper end of the valve rod is fixedly connected with the driving shaft 26, the lower end of the valve rod penetrates through a water inlet on the bottom surface of the valve core cavity 8 to be inserted into a valve rod insertion hole arranged on the bottom surface of the flow guide cavity, the valve core 6 is connected with the valve rod in series in a sliding mode, after the driving shaft 26 is connected with the rectifying sleeve in a sealing mode, the upper end of the valve rod extends upwards into the valve cover cavity to facilitate the driving shaft to rotate through a power source, the lower portion of the flow guide cavity 5 is communicated with one side of the filtering cavity 38, the partition plate 15 is located between the water inlet connecting pipe and the rectifying sleeve cavity, the periphery of the partition plate is fixedly connected with the inner cavity of the valve body in a sealing mode to facilitate the water in the water inlet connecting pipe to be guided into the filtering device, the flow guide cavity 5 is communicated with the valve core cavity 8 through the water inlet of the valve core cavity 8, the valve core 6 is located in the valve core cavity 8, and the periphery of the lower portion of the valve core 6 is inserted into the inner wall of the lower end of the valve core cavity 8 in a sealing mode, the upper end covers the terminal surface and is greater than rectification cover inlet opening section area to reach the effect of preventing leaking, leak when heat supply user is indoor, make the velocity of water increase, water promotes the axial of valve core 6 along the valve rod and shifts up, plugs up rectification cover inlet opening section port down rapidly, has avoided the indoor other property losses that lead to because of leaking of user.

The utility model discloses can be in be equipped with case stroke micromatic setting between valve gap 4 and fairing 7, it includes screw rod 9, uide bushing 16 cover is outside the fairing, 16 lower part peripheries of uide bushing are through the sealed fixed connection of outer spacing flange 19 that is equipped with and leakage-proof intracavity wall, and the lower part hole is multiaspect cylindricality hole 25, and cooperatees with the outer multiaspect cylinder that the fairing outer wall was equipped with and realizes axial sliding connection, and the upper portion hole is connected with drive shaft 26 seal to be favorable to sealing once more the upper end of fairing through uide bushing 16;

the screw rod 9 is in threaded connection with the rectifying sleeve, the lower end of the screw rod 9 is fixedly connected with the valve rod, the upper end of the screw rod is fixedly connected with the driving shaft 26,

when the position of the flow adjusting sleeve needs to be adjusted, the power source is connected with the driving shaft 26, the driving shaft 26 drives the screw rod 9 to rotate, and the flow adjusting sleeve on the screw rod axially displaces under the action of the outer multi-surface column body, so that the effect of quickly adjusting the position of the flow adjusting sleeve is achieved.

The invention can also be sleeved with a screw 9 locking device on the driving shaft between the guide sleeve 16 and the valve cover 4, which comprises a return spring 21, a lock sleeve and a small limit shaft sleeve, wherein the inner hole of the valve cover is axially provided with a lockable straight-tooth inner hole and a lock sleeve guide hole in sequence from top to bottom, the upper end of the driving shaft 26 is fixedly provided with a coaxial straight-tooth gear 33, the driving shaft 26 is sleeved with the lock sleeve, the return spring 21 and the small limit shaft sleeve in sequence from top to bottom, the lower end of the small limit shaft sleeve is fixedly connected with the guide sleeve 16, the inner hole of the small limit shaft sleeve is hermetically connected with the driving shaft 26 through a sealing ring, the lower end of the return spring 21 is sleeved on the small limit shaft sleeve and is abutted against the upper end surface of the guide sleeve 16, the upper end is abutted against the upper top surface of a spring positioning hole of the lock sleeve 27, the structure of the lock sleeve is the same as that of the prior art, which is not repeated, during locking, under the tension action of the reset spring 21, the lock sleeve is abutted against the top surface of the lock sleeve guide hole of the valve cover through the top shoulder section, so that the vertical jacking force is realized, the periphery of the lock sleeve is meshed and fixed with the straight tooth inner hole of the valve cover through the outer gear ring section, the inner tooth hole of the lock sleeve is meshed with the straight tooth pinion on the driving shaft 26, so that the lock sleeve is locked on the valve cover, and circumferential locking is realized; when the stroke of the valve core 6 is to be adjusted, the lock sleeve is pressed downwards, the lock sleeve moves downwards in a state that the return spring 21 is compressed, when the outer gear ring section on the periphery of the lock sleeve is separated from the straight-tooth inner hole of the valve cover, locking is released, the inner gear hole of the inner hole of the lock sleeve moves downwards along the straight-tooth gear 33, namely the upper end part of the driving shaft 26 is exposed, then the driving shaft 26 rotates through the power source, the driving shaft 26 drives the screw rod 9 to rotate, the rectifying sleeve moves upwards or downwards under the guiding action of the guide sleeve 16, the stroke of the valve core 6 can be adjusted, after adjustment is completed, the power source is released, the lock sleeve is reset under the tension action of the return spring 21, at the moment, the outer gear ring section on the periphery of the lock sleeve is meshed with the straight-tooth inner hole of the valve cover again, the inner gear hole of the lock sleeve is meshed with the straight-tooth gear 33 on the upper part of the driving shaft 26 again, and locking is achieved.

According to the invention, the middle part of the valve rod 10 is provided with the limiting and limiting shaft shoulder 37, when water supply is adjusted in the water supply process, the rectifying sleeve is driven to move upwards along the guide sleeve by rotating the screw rod 9, so that the lower end surface of the limiting and limiting shaft shoulder extends out of the lower end of the water inlet section of the rectifying sleeve, and smooth water flow is ensured, thereby achieving the effect of conveniently adjusting water supply; when the adjustment is finished, the screw rod 9 is rotated reversely again, the rectifying sleeve is moved downwards along the guide sleeve, so that the lower end face of the limiting and limiting shaft shoulder is higher than the lower end face of the axial flow sleeve, and the valve core 6 is ensured to move upwards through the valve rod 10 to plug the water inlet section of the rectifying sleeve when the heating is leaked, thereby achieving the effect of preventing leakage.

The utility model discloses can be equipped with temperature sensor mounting hole and pressure sensor mounting hole on the baffle, temperature sensor mounting hole lower extreme is linked together with 8 inner walls in case chamber, install temperature sensor 34 in the temperature sensor mounting hole, install pressure sensor 35 in the pressure sensor mounting hole to reach and to realize that the switch prevents leaking, filtering, can realize temperature and pressure detection's effect again.

Case 611 lower part is the toper, perhaps is the cylindricality to do benefit to and carry out the effect of blocking to the water inlet of flowing back cover.

The utility model discloses can the intracavity wall axial of preventing letting out in the valve body 1 is equipped with interior boss 17 of spacing and interior boss 18 of spacing down, interior boss 17 of spacing is located interior boss 18 top of spacing down on, outer spacing flange is located between interior boss of spacing and the interior boss of spacing down, shifts up of the external spacing flange of boss and carries on spacingly through last spacing, shifts down of the external spacing flange of boss and carries on spacingly through spacing down.

Still include stop pin 24 among the case stroke fine-tuning, 16 lower extreme circumference arrays of uide bushing are equipped with

stop pin

24, 24 axial downwardly extending settings of stop pin, boss inner wall is equipped with the spacing recess of stop pin in the lower spacing, the uide bushing is pegged graft mutually through stop pin and spacing recess 22 and is fixed a position in the valve body to 16 circumference of restriction uide bushing are rotatory, reach the effect of dismantling convenience, sealed location.

The utility model can also be sleeved with a screw 9 locking device between the guide sleeve 16 and the valve cover 4, which comprises a reset spring 21, a lock sleeve and a small limit shaft sleeve, the inner hole of the valve cover is provided with a lockable straight-tooth inner hole and a lock sleeve guide hole from top to bottom in sequence,

the upper end of the driving shaft 26 is fixedly provided with a coaxial straight gear 33, the driving shaft 26 is sequentially sleeved with a lock sleeve, a reset spring 21 and a small limiting shaft sleeve from top to bottom, the lower end of the small limiting shaft sleeve is fixedly connected with the guide sleeve 16, an inner hole of the small limiting shaft sleeve is hermetically connected with the driving shaft 26 through a sealing ring,

the lower end of the reset spring 21 is sleeved on the small limiting shaft sleeve and is propped against the upper end surface of the guide sleeve 16, the upper end of the reset spring is propped against the upper top surface of the spring positioning hole of the lock sleeve 27,

the structure of the lock sleeve is the same as that of the prior art, which is not described in detail,

the lock sleeve is positioned between the valve cover and the straight gear 33, when in locking, under the tension action of the reset spring 21, the lock sleeve is abutted against the top surface of the lock sleeve guide hole of the valve cover through the top shoulder section to realize the jacking force in the vertical direction, the periphery of the lock sleeve is meshed and fixed with the straight-tooth inner hole of the valve cover through the outer gear ring section, the inner tooth hole of the lock sleeve is meshed with the straight-tooth pinion on the driving shaft 26 to lock the lock sleeve on the valve cover to realize circumferential locking, the meshing of the inner tooth hole and the straight-tooth pinion on the driving shaft can also adopt a cylindrical polyhedral inner hole to be matched with a polygonal prism at the upper end of the driving shaft, and the upper end surface of the driving shaft 26 is equal to or lower than the upper end surface of the valve cover, thereby achieving the effect of avoiding irrelevant people from rotating the driving shaft 26; when the stroke of the valve core 6 is to be adjusted, the lock sleeve is pressed downwards, the lock sleeve moves downwards in a state that the return spring 21 is compressed, when the outer gear ring section on the periphery of the lock sleeve is separated from the straight-tooth inner hole of the valve cover, locking is released, the inner gear hole of the inner hole of the lock sleeve moves downwards along the straight-tooth gear 33, namely the upper end part of the driving shaft 26 is exposed, then the driving shaft 26 rotates through the power source, the driving shaft 26 drives the screw rod 9 to rotate, the rectifying sleeve moves upwards or downwards under the guiding action of the guide sleeve 16, the stroke of the valve core 6 can be adjusted, after adjustment is completed, the power source is released, the lock sleeve is reset under the tension action of the return spring 21, at the moment, the outer gear ring section on the periphery of the lock sleeve is meshed with the straight-tooth inner hole of the valve cover again, the inner gear hole of the lock sleeve is meshed with the straight-tooth gear 33 on the upper part of the driving shaft 26 again, and locking is achieved.

The utility model discloses work as the power supply can adopt electric drive, also can adopt manual drive, when manual rotation, the power supply comprises grafting handle and rotatory handle, grafting handle one end and rotatory handle fixed connection, other end terminal surface center axial are equipped with the spliced eye, when using, the spliced eye meshes with drive shaft 26's straight-teeth gear 33 mutually, the degree of depth of spliced eye is greater than the degree of depth of the straight-teeth hole of valve gap to do benefit to and carry out quick adjustment through the stroke of special key to case 6.

The utility model discloses can lock sleeve upper end is equipped with the key constant head tank, the diameter of key constant head tank cooperatees with the external diameter of plug handle to reach further quick adjustment's effect.

The utility model discloses still can be in calibrated scale 31 is installed to the valve gap up end, calibrated scale 31 up end is equipped with the scale concave line, opens the mark concave line, closes the mark concave line, lock sleeve up end one side is equipped with the pointer recess that is used for the accurate positioning of instructing, and through the numerical value of the scale concave line that the pointer recess corresponds, can know the stroke size of case 6 fast.

The utility model discloses owing to adopt above-mentioned structure, have compact structure, energy saving, water supply advantage such as with low costs, simple to operate, sealing performance height, work efficiency height.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a left side view of fig. 1.

Fig. 3 is a cross-sectional view a-a of fig. 2.

Fig. 4 is a schematic structural diagram of another embodiment of the present invention.

Fig. 5 is a schematic structural view of the heat supply pipeline sewage filtering and discharging device of the present invention.

Reference numerals are as follows: the water-saving type water-saving valve comprises a valve body 1, a water inlet connecting pipe 2, a water outlet connecting pipe 3, a valve cover 4, a flow guide cavity 5, a valve core 6, a rectifying sleeve 7, a valve core cavity 8, a screw rod 9, a valve rod 10, a supporting plate 11, a water outlet through hole 12, a partition plate 15, a guide sleeve 16, an outer limiting flange 19, a return spring 21, an anti-rotation pin 24, a multi-surface cylindrical inner hole 25, a driving shaft 26, a straight gear 33, a temperature sensor 34, a pressure sensor 35, a filtering device 36, a limiting shaft shoulder 37, a filtering cavity 38, a filtering screen cylinder 39, a sealing part 40, a water return pipeline 42, a connecting pipeline 43 and a one-way valve 44.

Detailed Description

The present invention will be described with reference to the accompanying drawings and examples.

As shown in the accompanying

drawings

1 and 2, an anti-leakage filter valve comprises a valve body 1, a valve cover 4 and a flow guide cavity 5, wherein a water inlet connecting pipe 2 is arranged at the left end of the valve body 1, a water outlet connecting pipe 3 is arranged at the right end of the valve body, the upper end of the valve body 1 is fixedly connected with the valve cover 4, the lower end of the valve body is connected with the flow guide cavity, a valve core cavity 8 is arranged between the valve cover 4 and the flow guide cavity 5, and an anti-leakage device is arranged in the valve core cavity 8 and is characterized in that a filter device is arranged between a water inlet channel of the valve body and the water inlet connecting pipe 2, a water inlet at the upper end of the filter device is communicated with the lower side wall of the water inlet connecting pipe, and a water outlet at the side wall of the filter device is communicated with the flow guide cavity, so that the water inlet channels of the filter device and the valve body are integrated into a U shape, thereby not only realizing the filtering and anti-leakage functions, but also reducing the installation times, saving energy and improving the sealing performance and the working efficiency.

As shown in fig. 4, the sealing portion 40 of the present invention may further adopt a switch valve, and the switch valve is connected to the bottom of the filtering cavity by a thread so as to facilitate the removal of the impurities at the bottom of the filtering net cylinder 39 through the switch valve.

As shown in fig. 5, a heat supply pipeline dirt filtering and discharging device comprises a water inlet pipeline and a water return pipeline 42, and is characterized in that the water inlet pipeline is provided with the leakage-proof filter valve, the lower end of the leakage-proof filter valve is communicated with a connecting pipeline 43 through a switch valve, the lower end of the connecting pipeline 43 is communicated with the water return pipeline 42, a one-way valve 44 is hinged in the water return pipeline 42, and the water outlet of the connecting pipeline 43 is communicated with the water discharging direction of the water return pipeline 42 through the one-way valve 44, so that the dirt is conveniently discharged.

As shown in the attached figure 3, the anti-leakage device of the invention comprises a rectifying sleeve 7, a driving shaft and a supporting plate 11, wherein the rectifying sleeve 7 is positioned in an anti-leakage cavity at the center of a water inlet connecting pipe 2 and a water outlet connecting pipe 3, the axis of the rectifying sleeve 7 is vertical to the axes of the water inlet connecting pipe and the water outlet connecting pipe of a valve body 1, the upper part of the inner cavity of the rectifying sleeve 7 is provided with a connecting hole section, the lower part of the inner cavity of the rectifying sleeve 7 is provided with a water inlet hole section, one side of the rectifying sleeve 7 is provided with a water outlet through hole 12 for discharging water in the water inlet hole section of the rectifying sleeve to a water outlet, the outer wall of the upper end of the rectifying sleeve 7 is hermetically connected with the inner wall of the anti-leakage cavity, the outer wall of the lower part of the rectifying sleeve is hermetically connected with the side wall of the lower part of the water outlet connecting pipe through the supporting plate 11, the supporting plate can be fixedly connected with the rectifying sleeve or can be fixedly connected with the side wall of the water outlet connecting pipe, when being fixedly connected with the rectifying sleeve, the upper end of the supporting plate 11 is fixedly connected with a clapboard 15, the water guide cavity 5 is in sealed isolation with the water outlet connecting pipe through the supporting plate, the valve rod 10 penetrates through the rectifying cavity and the valve core cavity 8, the upper end of the valve rod is fixedly connected with the driving shaft 26, the lower end of the valve rod penetrates through a water inlet on the bottom surface of the valve core cavity 8 and is inserted with a valve rod insertion hole arranged on the bottom surface of the rectifying cavity, the valve core 6 is connected in series in a sliding mode on the valve rod, after the driving shaft 26 is in sealed connection with the rectifying sleeve, the upper end of the valve rod extends upwards into the valve cover cavity so as to facilitate the driving shaft to rotate through a power source, the lower portion of the rectifying cavity 5 is communicated with one side of the filtering cavity 38, the partition plate 15 is positioned between the water inlet connecting pipe and the rectifying sleeve cavity, the periphery of the partition plate is in sealed fixed connection with the inner cavity of the valve body so as to facilitate the water in the water inlet connecting pipe to be guided into the filtering device, the water guide cavity 5 is communicated with the valve core cavity 8 through the water inlet of the valve core cavity 8, and the valve core 6 is positioned in the valve core cavity 8, the periphery of the lower part of the valve core 6 is in sealed insertion connection with the inner wall of the lower end of the valve core cavity 8, the upper end covering end face is larger than the area of the water inlet section of the rectifying sleeve, so that the leakage prevention effect is achieved, when water leaks in a heat supply user room, the water flow speed is increased, the water pushes the valve core 6 to move upwards along the axial direction of the valve rod, the lower port of the water inlet section of the rectifying sleeve is plugged rapidly, and other property losses caused by water leakage in the user room are avoided.

The utility model discloses can be in be equipped with case stroke micromatic setting between valve gap 4 and fairing 7, it includes screw rod 9, uide bushing 16 cover is outside the fairing, 16 lower part peripheries of uide bushing are through the outer limit flange 19 that is equipped with leak-proof intracavity wall sealing fixed connection, the lower part hole is multiaspect cylindricality hole 25, and cooperatees with the outer multiaspect cylinder that the fairing outer wall was equipped with and realizes axial sliding connection, the upper portion hole is connected with drive shaft 26 sealing to do benefit to seal again the upper end of fairing through uide bushing 16;

when the position of the flow adjusting sleeve is required to be adjusted, the power source is connected with the driving shaft 26, the driving shaft 26 drives the screw rod 9 to rotate, and the flow adjusting sleeve on the screw rod axially displaces under the action of the outer multi-surface cylinder, so that the effect of quickly adjusting the position of the flow adjusting sleeve is achieved.

As shown in the attached

drawings

1 and 5, the middle part of the valve rod 10 can be provided with a limiting shaft shoulder 37, when water supply is adjusted in the water supply process, the rectifying sleeve is driven to move upwards along the guide sleeve by rotating the screw rod 9, so that the lower end surface of the limiting shaft shoulder extends out of the lower end of the water inlet section of the rectifying sleeve, smooth water flow is ensured, and the effect of conveniently adjusting water supply is achieved; when the adjustment is finished, the screw rod 9 is rotated reversely, the rectifying sleeve moves downwards along the guide sleeve, the lower end face of the limiting and limiting shaft shoulder is higher than the lower end face of the axial flow sleeve, and therefore it is guaranteed that when the heater leaks, the valve core 6 moves upwards through the valve rod 10 to block the water inlet section of the rectifying sleeve, and the effect of preventing leakage is achieved.

stop pin

the lower end of the reset spring 21 is sleeved on the small limit shaft sleeve and is abutted against the upper end surface of the guide sleeve 16, the upper end of the reset spring is abutted against the upper top surface of the spring positioning hole of the lock sleeve 27,

The utility model discloses still can the calibrated scale 31 is installed to the valve gap up end, calibrated scale 31 up end is equipped with the scale concave curve, opens the mark concave curve, closes the mark concave curve, lock sleeve up end one side is equipped with the pointer recess that is used for accurate indication location, and through the numerical value of the scale concave curve that the pointer recess corresponds, can know the stroke size of case 6 fast.

When the utility model is installed, the water inlet connecting pipe and the water outlet connecting pipe of the utility model can be respectively butted with the water inlet pipeline, the secondary connection with the water inlet pipeline is saved, the installation is greatly simplified, and the working efficiency is greatly improved; in the water supply process, water enters the filtering device through the water inlet connecting pipe, then enters the valve body through the filtering device, and flows out through the water outlet connecting pipe through the valve body.

When sundries in the filtering device are to be cleaned, impurities in the filtering net barrel can be opened and cleaned only by rotating the sealing cover, and after cleaning is completed, the sealing cover is hermetically connected with the filtering cavity.

In the use process of the utility model, the pressure of water is detected by a pressure sensor, the temperature of water is detected by a temperature sensor, please see figure 1, when adjusting the stroke of the valve core 6, a worker holds the rotary handle of the special key, the plug handle 28 is inserted into the key positioning groove, the plug hole at the lower end of the plug handle 28 can be directly meshed with the straight gear, then the lock sleeve is pressed down, the lock sleeve moves down under the state that the reset spring 21 is compressed, when the outer gear ring section at the periphery of the lock sleeve is separated from the straight gear inner hole of the valve cover, the circumferential locking of the lock sleeve is released, the special key is rotated, the special key rotates the driving shaft 26 to drive the screw rod 9 to rotate, the rectifying sleeve moves upwards or downwards under the guiding effect of the sealing sleeve 16, the effect of adjusting the stroke of the valve core 6 can be achieved, when the valve core 6 moves downwards by 1mm, the worker only needs to rotate the special key by 30 degrees, namely, the pointer groove on the lock sleeve points to the scale concave line by 30 degrees, after adjustment is finished, the special key is pulled upwards, the lock sleeve is reset under the tension action of the reset spring 21, at the moment, the outer gear ring section on the periphery of the lock sleeve is meshed with the straight-tooth inner hole of the valve cover again, the inner tooth hole of the lock sleeve is meshed with the straight-tooth gear on the upper portion of the driving shaft 26 again in a reset mode, the screw rod 9 is prevented from rotating due to external force rotation and/or the driving force of fluid, and the locking effect is achieved.

When water supply is adjusted in the water supply process, the rectifying sleeve is driven to move upwards along the guide sleeve by rotating the screw rod 9, so that the lower end surface of the limiting shaft shoulder extends out of the lower end of the water inlet section of the rectifying sleeve, smooth water flow is ensured, and the effect of conveniently adjusting water supply is achieved; when the adjustment is finished, the screw rod 9 is rotated reversely again, the rectifying sleeve is moved downwards along the guide sleeve, so that the lower end face of the limiting and limiting shaft shoulder is higher than the lower end face of the axial flow sleeve, and the valve core 6 is ensured to move upwards through the valve rod 10 to plug the water inlet section of the rectifying sleeve when the heating is leaked, thereby achieving the effect of preventing leakage.

When the user leaks the indoor sudden occurrence pipeline of user, perhaps the user is improper to open the heat supply pipeline valve and is released water, the velocity of flow increase of water promotes that valve core 6 shifts up along the valve rod fast to the water inlet of blocking the flow control cover is closed with the heat supply water, has reached the effect of preventing leaking.

In the water supply process, when the filtering device needs to be cleaned and drained, the switch valve can be rotated, dirt accumulated at the bottom of the filtering cavity body enters the water return pipeline through the switch valve and the connecting pipeline and is recovered through the water return pipeline, and meanwhile, the dirt is prevented from flowing back to the indoor pipeline of a user through the one-way valve in the recovery pipeline.

Claims

1. The utility model provides a prevent letting out filter valve, includes valve body, valve gap and water conservancy diversion chamber, and the valve body left end is equipped with into water connecting pipe, and the right-hand member end is equipped with out the water connecting pipe, valve body upper end and valve gap fixed connection, lower extreme and water conservancy diversion chamber are connected be equipped with the case chamber between valve gap and the water conservancy diversion chamber, the case intracavity is equipped with prevents letting out the device, its characterized in that be equipped with filter equipment between the inhalant canal of valve body and the connecting pipe of intaking, filter equipment upper end water inlet with the inhalant canal lateral wall communicates under the connecting pipe, filter equipment lateral wall delivery port is linked together with the water conservancy diversion chamber to make the flowing water passageway of filter equipment and valve body assemble "U" shape.

2. The leakage-proof filtering valve as claimed in claim 1, wherein the filtering means comprises a filtering screen cylinder and a sealing part, one side of the valve body is provided with a filtering cavity, the filtering screen cylinder is installed in the filtering cavity, the upper end of the filtering cavity is fixedly connected with the side wall of the water inlet connecting pipe in a sealing manner, the lower end of the filtering cavity is fixedly connected with the sealing part in a sealing manner through the sewage outlet, and one side of the filtering cavity is communicated with the flow guiding cavity through the filtering screen.

3. The leakage-proof filter valve as claimed in claim 2, wherein the sealing portion is a sealing cap, and the sealing cap is fixedly connected with the filter cavity through a screw thread and is hermetically connected with the filter cavity through a sealing ring.

4. The leakage-proof filtering valve of claim 2, wherein the sealing portion is an on-off valve, and the on-off valve is screwed with the bottom of the filtering cavity.

5. The anti-leakage filter valve according to claim 3 or 4, wherein the anti-leakage device comprises a flow sleeve, a driving shaft and a supporting plate, the flow sleeve is located in an anti-leakage cavity at the center of the water inlet connecting pipe and the water outlet connecting pipe, the axis of the flow sleeve is perpendicular to the axes of the water inlet connecting pipe and the water outlet connecting pipe of the valve body, the upper part of the inner cavity of the flow sleeve is provided with a connecting hole section, the lower part of the inner cavity of the flow sleeve is provided with a water inlet hole section, one side of the flow sleeve is provided with a water outlet through hole for discharging water in the water inlet hole section of the flow sleeve to the water outlet, the outer wall of the upper end of the flow sleeve is hermetically connected with the inner wall of the anti-leakage cavity, the outer wall of the lower part of the flow sleeve is hermetically connected with the side wall of the lower part of the water outlet connecting pipe through the supporting plate, the supporting plate is fixedly connected with the flow sleeve, or the supporting plate is fixedly connected with the side wall of the water outlet connecting pipe, the upper end of the supporting plate is fixedly connected with the flow sleeve, the valve rod penetrates through the rectifying cavity and the valve core cavity, the upper end of the valve rod is fixedly connected with the driving shaft, the lower end of the valve rod penetrates through a water inlet in the bottom surface of the valve core cavity and is inserted into a valve rod insertion hole in the bottom surface of the flow guide cavity, the valve core is connected with the valve rod in series in a sliding mode, the upper end of the driving shaft is upwards extended into the valve cover cavity after the driving shaft is connected with the rectifying sleeve in a sealing mode, the lower portion of the flow guide cavity is communicated with one side of the filtering cavity, the partition plate is located between the water inlet connecting pipe and the rectifying sleeve cavity, the periphery of the partition plate is fixedly connected with the inner cavity of the valve body in a sealing mode, the flow guide cavity is communicated with the valve core cavity through the water inlet in the valve core cavity, the valve core is located in the valve core cavity, the periphery of the lower portion of the valve core is inserted into the inner wall of the lower end of the valve core cavity in a sealing mode, and the covering end face of the upper end is larger than the area of the water inlet hole of the rectifying sleeve.

6. The leakage-proof filter valve according to claim 5, wherein the valve core stroke fine-tuning device is arranged between the valve cover and the rectifying sleeve, and comprises a screw rod and a guide sleeve, the guide sleeve is sleeved outside the rectifying sleeve, the outer periphery of the lower part of the guide sleeve is fixedly connected with the inner wall of the leakage-proof cavity in a sealing manner through an outer limiting flange, the inner hole of the lower part is a multi-surface cylindrical inner hole and is matched with an outer multi-surface cylinder arranged on the outer wall of the rectifying sleeve to realize axial sliding connection, the inner hole of the upper part is connected with the driving shaft in a sealing manner, the screw rod is connected with the rectifying sleeve in a threaded manner, the lower end of the screw rod is fixedly connected with the valve rod, the upper end of the screw rod is fixedly connected with the driving shaft, and the driving shaft between the guide sleeve and the valve cover is sleeved with a screw rod locking device.

7. The leakage-proof filtering valve as claimed in claim 6, wherein the valve stem is provided with a limiting shoulder at the middle part thereof.

8. The leakage-proof filter valve according to claim 6 or 7, wherein the partition plate is provided with a temperature sensor mounting hole and a pressure sensor mounting hole, the lower end of the temperature sensor mounting hole is communicated with the inner wall of the valve core cavity, a temperature sensor is mounted in the temperature sensor mounting hole, and a pressure sensor is mounted in the pressure sensor mounting hole.

9. The leakage-proof filtering valve of claim 8, wherein a fine adjustment device for the stroke of the valve core is arranged between the valve cover and the rectifying sleeve.

10. A heat supply pipeline dirt filtering and discharging device comprises a water inlet pipeline and a water return pipeline, and is characterized in that the water inlet pipeline is provided with an anti-leakage filter valve according to claim 4, 6, 7 or 9, the lower end of the anti-leakage filter valve is communicated with a connecting pipeline through a switch valve, the lower end of the connecting pipeline is communicated with the water return pipeline, a one-way valve is hinged in the water return pipeline, and a water outlet of the connecting pipeline is communicated with the water discharging direction of the water return pipeline through the one-way valve.