CN210770424U

CN210770424U - Plug-free electromechanical thermostatic valve

Info

Publication number: CN210770424U
Application number: CN201921932672.0U
Authority: CN
Inventors: 黄广平
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-11
Filing date: 2019-11-11
Publication date: 2020-06-16
Anticipated expiration: 2029-11-11

Abstract

The utility model discloses an exempt from to insert electromechanical thermostatic valve, it includes the casing, is equipped with thermal expansion valve, piston sleeve, water passing valve and check valve by one end toward other end direction in proper order in the casing, and piston cavity, this thermal expansion valve's one end are inserted in this piston, and piston sleeve pot head is on this water passing valve, and the other end of this water passing valve is equipped with seal gasket, the piston corresponds this seal gasket and inserts in this piston sleeve, and the cover is equipped with pressure spring on this piston, and this pressure spring's both ends are inconsistent with the preceding terminal surface of convex shoulder on the thermal expansion valve, piston sleeve respectively, and this check valve is fixed in the back tip of this casing. The utility model discloses when hot water reachs the hot and cold water junction, the thermostatic valve detects the temperature and closes promptly, makes hot water can not run in the cold water pipe and go. In the commercial hot water pipeline circulation field, exempt from to plug in electric thermo valve can replace traditional solenoid valve and temperature controller, removes the temperature controller and solenoid valve and need draw the loaded down with trivial details of power and signal line, and the life-span is longer moreover, and is more durable.

Description

Plug-free electromechanical thermostatic valve

Technical Field

The utility model relates to a thermostatic valve, concretely relates to exempt from to insert electromechanical thermostatic valve.

Background

In modern houses, a gas water heater is generally specified to be installed on a balcony and to deliver hot water to a room through a hot water pipe, and since a house is large and a hot water pipe is long, a large amount of cold water is discharged every time hot water is used, and a long time is required to wait for hot water. Under the condition, the cold water in the hot water pipeline can be recycled back to the water heater for secondary heating by installing a pipeless circulating system, so that the waste of water sources is reduced.

The traditional pipeless circulating system is characterized in that a one-way valve is arranged below a hand basin at the farthest end of a water heater to communicate cold and hot water pipes, and a cold water pipeline is used for circulation. However, the problem of waste caused by the fact that hot water flows into a cold water pipeline only by using the one-way valve can occur.

The problem that hot water flows into the cold water pipeline can be avoided by installing the thermostatic valve at the cold and hot water junction, and when the hot water reaches the cold and hot water junction, the thermostatic valve is closed when detecting the temperature, so that the hot water cannot run into the cold water pipe.

In the commercial hot water pipeline circulation field, exempt from to plug in electric thermo valve can replace traditional solenoid valve and temperature controller, removes the temperature controller and solenoid valve and need draw the loaded down with trivial details of power and signal line, and the life-span is longer moreover, and is more durable.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model discloses an exempt from to insert electromechanical thermostatic valve.

The utility model discloses a realize that the technical scheme that above-mentioned purpose adopted is:

the utility model provides an exempt from to insert electromechanical thermostatic valve, its includes the casing, be equipped with thermal expansion valve, piston sleeve, water passing valve and check valve by one end toward other end direction in proper order in the casing, the piston cavity, the one end of this thermal expansion valve is inserted in this piston, piston sleeve one end overlaps on this water passing valve, and the other end that should pass the water valve is equipped with the seal gasket, the piston corresponds this seal gasket and inserts in this piston sleeve, and the cover is equipped with pressure spring on this piston, and this pressure spring's both ends are inconsistent with the preceding terminal surface of convex shoulder on the thermal expansion valve, piston sleeve respectively, and this check valve is fixed in the back tip of this casing.

The inner diameter of the piston is smaller than the diameter of a shoulder on the thermal expansion valve, so that the shoulder can drive the piston to move.

The casing includes matched with procapsid and back casing, the rear end of this procapsid and the front end threaded connection of this procapsid, and the rear end outside of this procapsid is equipped with first seal groove, is equipped with first sealing washer to the front end cover that should back casing on this first seal groove, and first sealing washer prevents that the seepage from appearing in procapsid, back casing seam crossing.

The inner side of the front end of the piston sleeve is provided with a second sealing groove, a second sealing ring is arranged in the second sealing groove and corresponds to the piston, and the second sealing ring prevents the front end of the piston from leaking from the contact part of the front end of the piston sleeve.

The middle outer side of the piston is provided with a limiting bulge corresponding to the front end of the piston sleeve, so that the piston is prevented from falling off from the piston sleeve.

The water passing valve comprises a water passing valve body, a plurality of water passing holes are distributed on the wall surface of the water passing valve body, and the sealing gasket is fixed at the rear end of the water passing valve body. When hot water passes through, the valve core of the thermal expansion valve is heated and expanded to push the piston, so that the piston is tightly pressed on the sealing gasket, a hot water channel is cut off, and the hot water does not pass through the non-plug electric mechanical thermostatic valve any more. When the temperature of water contacted with the valve core of the thermal expansion valve is lower than 35 ℃, the valve core of the thermal expansion valve contracts, the pressure spring drives the piston to reset, the water way is opened again, and the water lower than 35 ℃ can pass through the non-plugging electric mechanical thermostatic valve.

The inner side of the front end of the water passing valve body is provided with a third sealing groove, a third sealing ring is arranged in the third sealing groove and corresponds to the piston, and the leakage of the joint between the rear end of the piston and the water passing valve body is avoided.

The periphery of the rear end of the one-way valve is provided with a fourth sealing groove, a fourth sealing ring is arranged in the fourth sealing groove and corresponds to the rear end of the rear shell, and leakage at the joint of the one-way valve and the rear shell is avoided.

And the other end of the thermal expansion valve is provided with an adjusting valve for adjusting the thermal expansion valve, and the water temperature communicated by the water way is selected.

The front end wall of the piston is provided with an opening. When the sealing gasket is not compressed tightly to the piston rear end, rivers can flow out this exempt from to insert electromechanical constant temperature valve through check valve, water hole, piston through-hole rear end, piston front end opening.

The utility model has the advantages that: the utility model has the advantages of reasonable design ingenious, avoid the problem of hot water inflow cold water pipeline, when the hot water reachs the hot and cold water intersection, the thermostatic valve detects the temperature and closes promptly, makes hot water can not run to go in the cold water pipe. In the commercial hot water pipeline circulation field, exempt from to plug in electric thermo valve can replace traditional solenoid valve and temperature controller, removes the temperature controller and solenoid valve and need draw the loaded down with trivial details of power and signal line, and the life-span is longer moreover, and is more durable.

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a cross-sectional view of the present invention.

Detailed Description

In an embodiment, referring to fig. 1 and fig. 2, the insertion-free electromechanical thermostatic valve provided in this embodiment includes a housing, a thermal expansion valve 1, a piston 2, a piston sleeve 3, a water passing valve 4, and a check valve 5 are sequentially disposed in the housing from one end to the other end, the piston 2 is hollow, one end of the thermal expansion valve 1 is inserted into the piston 2, one end of the piston sleeve 3 is sleeved on the water passing valve 4, the other end of the water passing valve 4 is provided with a sealing gasket 42, the piston 2 is inserted into the piston sleeve 3 corresponding to the sealing gasket 42, the piston 2 is sleeved with a pressure spring 6, two ends of the pressure spring 6 respectively abut against a shoulder 11 on the thermal expansion valve 1 and a front end surface of the piston sleeve 3, and the check valve 5 is fixed at a rear end of the housing.

The inner diameter of the piston 2 is smaller than the diameter of the shoulder 11 on the thermal expansion valve 1, so that the shoulder 11 can drive the piston 2 to move.

The shell comprises a front shell 71 and a rear shell 72 which are matched with each other, the rear end of the front shell 71 is in threaded connection with the front end of the front shell 71, a first sealing groove is formed in the outer side of the rear end of the front shell 71, a first sealing ring 81 is sleeved on the first sealing groove corresponding to the front end of the rear shell 72, and the first sealing ring 81 prevents the front shell 71 and the rear shell 72 from leaking at the joint.

The inside of the front end of the piston sleeve 3 is provided with a second sealing groove, a second sealing ring 82 is arranged in the second sealing groove corresponding to the piston 2, and the second sealing ring 82 prevents the front end of the piston 2 from leaking at the contact part with the front end of the piston sleeve 3.

The middle outer side of the piston 2 is provided with a limiting bulge 21 corresponding to the front end of the piston sleeve 3, so that the piston 2 is prevented from falling off from the piston sleeve 3.

The water passing valve 4 comprises a water passing valve body 41, a plurality of water passing holes 411 are distributed on the wall surface of the water passing valve body 41, and the sealing gasket 42 is fixed at the rear end of the water passing valve body 41. When hot water passes through, the valve core of the thermal expansion valve 1 is heated to expand to push the piston 2, so that the piston 2 is tightly pressed on the sealing gasket 42, a hot water channel is cut off, and the hot water does not pass through the plug-free mechanical thermostatic valve. When the water temperature contacted with the valve core of the thermal expansion valve 1 is lower than 35 ℃, the valve core of the thermal expansion valve 1 contracts, the pressure spring 6 drives the piston 2 to reset, the water path is opened again, and the water lower than 35 ℃ can pass through the non-plug electric mechanical thermostatic valve. The water temperature can be adjusted by the adjusting valve 9.

The inboard third seal groove that is equipped with of the front end of crossing water valve body 41 corresponds in this third seal groove piston 2 is equipped with third sealing washer 83, avoids piston 2 rear end and the seam crossing seepage of crossing water valve body 41.

A fourth sealing groove is formed in the periphery of the rear end of the check valve 5, a fourth sealing ring 84 is arranged in the fourth sealing groove and corresponds to the rear end of the rear shell 72, and leakage at the joint of the check valve 5 and the rear shell 72 is avoided.

And the other end of the thermal expansion valve 1 is provided with an adjusting valve 9 for adjusting the thermal expansion valve 1, and the water temperature communicated by the water way is selected.

The front end wall of the piston 2 is provided with an opening 22. When the sealing gasket 42 is not compressed at the rear end of the piston 2, water flow can flow out of the non-plug-in mechanical thermostatic valve through the check valve 5, the water through hole 411, the rear end of the through hole of the piston 2 and the opening 22 at the front end of the piston 2.

The utility model has the advantages of reasonable design ingenious, avoid the problem of hot water inflow cold water pipeline, when the hot water reachs the hot and cold water intersection, the thermostatic valve detects the temperature and closes promptly, makes hot water can not run to go in the cold water pipe. In the commercial hot water pipeline circulation field, exempt from to plug in electric thermo valve can replace traditional solenoid valve and temperature controller, removes the temperature controller and solenoid valve and need draw the loaded down with trivial details of power and signal line, and the life-span is longer moreover, and is more durable.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way. The technical solution of the present invention can be used by anyone skilled in the art to make many possible variations and modifications, or to modify equivalent embodiments, using the technical means and contents disclosed above, without departing from the scope of the technical solution of the present invention. Therefore, the equivalent changes made according to the shape, structure and principle of the present invention should be covered in the protection scope of the present invention.

Claims

1. The utility model provides an exempt from to insert electromechanical thermostatic valve, its includes the casing, its characterized in that: the water passing valve is characterized in that a thermal expansion valve, a piston sleeve, a water passing valve and a one-way valve are sequentially arranged in the shell from one end to the other end, the piston is hollow, one end of the thermal expansion valve is inserted into the piston, one end of the piston sleeve is sleeved on the water passing valve, a sealing gasket is arranged at the other end of the water passing valve, the piston is inserted into the piston sleeve corresponding to the sealing gasket, a pressure spring is sleeved on the piston, two ends of the pressure spring are respectively abutted to the front end faces of a convex shoulder on the thermal expansion valve and the front end face of the piston sleeve, and the one-way valve is fixed at the rear end.

2. The plug-free electromechanical thermostatic valve of claim 1, wherein an inner diameter of the piston is smaller than a diameter of a shoulder on the thermal expansion valve.

3. The plug-free electromechanical thermostatic valve according to claim 1 or 2, wherein the housing comprises a front housing and a rear housing which are matched with each other, a rear end of the front housing is in threaded connection with a front end of the front housing, a first sealing groove is formed on the outer side of the rear end of the front housing, and a first sealing ring is sleeved on the first sealing groove and corresponds to the front end of the rear housing.

4. The plug-free electromechanical thermostatic valve according to claim 1 or 2, wherein a second sealing groove is formed inside the front end of the piston sleeve, and a second sealing ring is arranged in the second sealing groove and corresponds to the piston.

5. The plug-free electromechanical thermostatic valve according to claim 1 or 2, wherein a limiting protrusion is provided on the outer side of the middle portion of the piston corresponding to the front end of the piston sleeve.

6. The plug-free electromechanical thermostatic valve according to claim 1 or 2, wherein the water passing valve comprises a water passing valve body, a plurality of water passing holes are distributed on the wall surface of the water passing valve body, and the sealing gasket is fixed at the rear end of the water passing valve body.

7. The plug-free electromechanical thermostatic valve according to claim 6, wherein a third sealing groove is formed in the inner side of the front end of the water passing valve body, and a third sealing ring is arranged in the third sealing groove and corresponds to the piston.

8. The plug-free electromechanical thermostatic valve according to claim 3, wherein a fourth seal groove is formed in an outer periphery of a rear end of the check valve, and a fourth seal ring is disposed in the fourth seal groove and corresponds to a rear end of the rear housing.

9. The plug-free electromechanical thermostatic valve according to claim 1 or 2, wherein an adjusting valve for adjusting the thermal expansion valve is provided on the other end of the thermal expansion valve.

10. A plug-free electromechanical thermostatic valve according to claim 1 or 2, wherein the piston is provided with an opening in a front end wall thereof.