CN212028618U

CN212028618U - Press lever-type pilot valve core and switch valve

Info

Publication number: CN212028618U
Application number: CN202020271538.7U
Authority: CN
Inventors: 林孝发; 林孝山; 邓小清; 余开石
Original assignee: Fujian Xihe Sanitary Ware Technology Co Ltd
Current assignee: Fujian Xihe Sanitary Ware Technology Co Ltd
Priority date: 2020-03-06
Filing date: 2020-03-06
Publication date: 2020-11-27
Anticipated expiration: 2030-03-06

Abstract

The utility model discloses a press lever type pilot valve core, which comprises a valve casing, a diaphragm unit and a switching mechanism, wherein the diaphragm unit is arranged in the valve casing and is matched with the valve casing to form an auxiliary water path; the method is characterized in that: the switching mechanism comprises a button and a switching rod, the button is arranged on the valve shell in a seesaw mode, and a positioning structure for locking the position of the button is matched between the button and the valve shell; the switch rod partially extends into the valve casing, two opposite ends of the button can be pressed respectively, and the switch rod is linked to move along the axial direction of the button to open or close the auxiliary water channel. The utility model discloses a button constitutes lever structure, cooperation switching pole, overall structure is more simple not only, presses laborsaving moreover, presses stroke weak point, convenient operation.

Description

Press lever-type pilot valve core and switch valve

Technical Field

The utility model relates to a pilot valve core especially relates to a press lever pilot valve core and ooff valve.

Background

The push type switch valve core generally adopts a pilot valve principle, and the auxiliary waterway switch with small area is utilized to control the switch of the main waterway, so that the purpose of opening and closing the valve core is achieved. The push type switch valve core in the prior art generally adopts a button axial pressing mode, and has the problems of long button pressing stroke, large pressing force and inconvenient operation.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the technical problem that prior art exists, provide a press lever pilot valve core and ooff valve that the stroke of pressing is short, pressing force is little.

The utility model provides a technical scheme that its technical problem adopted is: a press lever type pilot valve core comprises a valve shell, a diaphragm unit and a switching mechanism, wherein the diaphragm unit is arranged in the valve shell and is matched with the valve shell to form an auxiliary water path; the switching mechanism comprises a button and a switching rod, the button is arranged on the valve shell in a seesaw mode, and a positioning structure for locking the position of the button is matched between the button and the valve shell; the switch rod partially extends into the valve casing, two opposite ends of the button can be pressed respectively, and the switch rod is linked to move along the axial direction of the button to open or close the auxiliary water channel.

Further, the switching mechanism comprises a sliding block, the button is rotatably connected with the sliding block, and the rotating axis of the button is parallel to that of the button; the sliding block is connected with one end of the switching rod exposed outside the valve shell in a sliding mode, and the sliding direction is located in the direction of two ends of the button.

Furthermore, a sliding guide structure is matched between the sliding block and the switching rod, the sliding guide structure comprises a T-shaped sliding part arranged on the sliding block and a T-shaped sliding groove arranged at one end of the switching rod exposed outside the valve shell, the length of the sliding groove is greater than that of the sliding part, and the sliding part and the sliding groove are sleeved together in a sliding manner.

Further, the button includes button cap and the wane of setting in this button cap, and the wane is installed on the valve casing with the seesaw form to with cooperate between the valve casing have location structure, the slider rotates with the seesaw to be connected.

Furthermore, the location structure includes spring and hits pearl, positioning slot group, and the spring hits the pearl and sets up one in button and the valve casing, and be located the rotation junction of button and valve casing, positioning slot group sets up another in button and the valve casing, and positioning slot group includes two constant head tanks, and the pearl is bumped through following the button rotation of spring and two constant head tanks switch the cooperation.

Furthermore, the valve shell is provided with a water inlet and a water outlet, and a main waterway is formed by a passage where the water inlet and the water outlet are positioned; the diaphragm unit and the valve shell form a hydraulic pressure cavity in an enclosing mode, a damping hole and a pressure relief hole are formed in the diaphragm unit, and a passage where the water inlet, the damping hole, the hydraulic pressure cavity, the pressure relief hole and the water outlet are located forms the auxiliary waterway; the switching rod controls the pressure relief hole to be opened or closed through moving along the axial direction of the switching rod, and the auxiliary waterway is opened along with the opening of the pressure relief hole, so that the water inlet is communicated with the water outlet.

Furthermore, the valve shell comprises a gland and a shell with an opening at the top end, the gland is hermetically connected with the top of the shell, the side wall of the shell is provided with the water inlet, the bottom of the shell is provided with the water outlet, and the bottom of the shell is provided with an annular boss which is communicated with the water outlet and extends towards the interior of the shell; the diaphragm unit is arranged between the gland and the shell and forms the hydraulic pressure cavity with the gland; with the opening of the pressure relief hole, the diaphragm unit is separated from the top end of the annular boss; with the closing of the pressure relief hole, the diaphragm unit abuts against the top end of the annular boss; the button is arranged on the gland in a seesaw mode, and the positioning structure is matched between the button and the gland; the switching rod downwards penetrates through the gland to enter the hydraulic pressure cavity.

Furthermore, the diaphragm unit comprises a diaphragm and an auxiliary spring, the peripheral edge of the diaphragm is limited between the gland and the shell, and the middle part of the diaphragm is provided with the pressure relief hole; the auxiliary spring is abutted between the diaphragm and the gland, and one end of the auxiliary spring is bent and penetrates through a through hole formed in the diaphragm, so that the damping hole is formed in a gap between the through hole and the end of the auxiliary spring.

Furthermore, the switching rod penetrates through the pressure relief hole and is provided with a sealing part, and the switching rod enables the sealing part to open or close the pressure relief hole through axial movement.

The utility model also provides a switch valve, which comprises a valve body, wherein the valve body is provided with a containing cavity, at least one inlet and an outlet; still include as above-mentioned press lever pilot valve core, this pilot valve core dress is in the chamber that holds of valve body, just the button exposes, and the import of valve body passes through main water route and export intercommunication.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the switching mechanism comprises a button and a switching rod, the button is arranged on the valve shell in a seesaw mode, and a positioning structure for locking the position of the button is matched between the button and the valve shell; the switch rod partially extends into the valve shell, two opposite ends of the button can be pressed respectively, and the switch rod is linked to move along the axial direction of the switch rod to open or close the auxiliary water channel, so that the button forms a lever type structure.

2. The switching mechanism further comprises the sliding block, the button is matched with the switching rod through the sliding block, so that the structure of the button can be simpler, and the button is matched with the switching rod through the sliding block, so that the action is smoother.

The present invention will be described in further detail with reference to the accompanying drawings and examples; however, the present invention is not limited to the embodiment of the present invention.

Drawings

FIG. 1 is an exploded schematic view of the present invention;

fig. 2 is a schematic perspective view of the present invention;

fig. 3 is a cross-sectional view of the present invention;

fig. 4 is a sectional view of the present invention in a closed state of the main waterway;

fig. 5 is a sectional view of the present invention in the open state of the main waterway.

Detailed Description

In an embodiment, please refer to fig. 1 to 5, the present invention relates to a press lever type pilot valve core, which includes a valve housing 5, a diaphragm unit 6, and a switching mechanism, wherein the diaphragm unit 6 is installed in the valve housing 5 and cooperates with the valve housing 5 to form an auxiliary waterway, the valve housing 5 is provided with a main waterway, and the main waterway is opened or closed according to whether the auxiliary waterway is opened or not; the switching mechanism comprises a button 1 and a switching rod 4, the button 1 is arranged on a valve shell 5 in a seesaw mode, and a positioning structure for locking the position of the button is matched between the button 1 and the valve shell 5; the switch rod 4 partially extends into the valve casing, two opposite ends of the button 1 can be pressed respectively, and the switch rod 4 is linked to move along the axial direction to open or close the auxiliary water channel.

In this embodiment, the switching mechanism includes a slider 3, and the button 1 is rotatably connected to the slider 3, and the rotation axis is parallel to the rotation axis of the button 1. The bottom of the sliding block 3 is slidably connected with one end of the switching rod 4 exposed out of the valve casing 5 (the end of the switching rod 4 faces upwards), and the sliding direction is located in the direction of the two ends of the button 1. In the present embodiment, both ends of the button 1 are located in the right and left directions as shown in fig. 3 to 5, but not limited thereto. Therefore, the slider 3 can slide in the left-right direction.

In this embodiment, a sliding guide structure is engaged between the slider 3 and the switching lever 4, the sliding guide structure includes a T-shaped sliding portion 31 provided on the slider 3 and a T-shaped sliding slot 41 provided at an end of the switching lever 4 exposed outside the valve housing 5, the length of the sliding slot 41 is greater than that of the sliding portion 31, and the sliding portion 31 and the sliding slot 41 are slid together. The slide groove 41 is specifically provided on a projection provided at one end of the switching lever 4 exposed outside the valve housing 5.

In this embodiment, button 1 includes button cap 11 and the wane 12 of setting in this button cap 11, and wane 12 installs on valve casing 5 with the seesaw form, and with the cooperation between the valve casing 5 have location structure, slider 3 is rotated with seesaw 12 one end and is connected, and is concrete, and the cooperation of shaft hole and a bolt 13 through setting up separately in seesaw 12 left end and the 3 tops of slider realizes rotating the connection, and 12 right-hand members of wane also peg graft and have another bolt 14, and two

bolts

13, 14 are parallel to each other, and both ends are equipped with a jack catch 111 respectively about button cap 11 is inside, and these two jack catches two bolts 13 respectively, 14, make button cap 11 and seesaw 12 relatively fixed.

In this embodiment, the positioning structure includes a spring ball 2 and a positioning slot set, the spring ball 2 is disposed on one of the button 1 and the valve housing 5 and is located at the rotary connection position of the button 1 and the valve housing 5, the positioning slot set is disposed on the other of the button 1 and the valve housing 5, and the positioning slot set includes two

positioning slots

511 and 512, and the ball 22 of the spring ball 2 is switched and matched with the two

positioning slots

511 and 512 by rotating along with the button 1. Specifically, spring touches pearl 2 and sets up in the middle part position of button 1's wane 12, and spring touches pearl 2's installation cover and wane 12 integrated into one piece. The positioning groove group is arranged on the top surface of the gland 51, and two

positioning grooves

511 and 512 of the positioning groove group are distributed left and right.

In this embodiment, the valve housing 5 is provided with a water inlet 521 and a water outlet 522, and a passage where the water inlet 521 and the water outlet 522 are located constitutes the main waterway. The diaphragm unit 6 and the valve casing 5 enclose a hydraulic pressure cavity 63, the diaphragm unit 6 is provided with a damping hole 621 communicating the hydraulic pressure cavity 63 with the water inlet 521 and a pressure relief hole 622 communicating the hydraulic pressure cavity 63 with the water outlet 522, and the passages where the water inlet 521, the damping hole 621, the hydraulic pressure cavity 63, the pressure relief hole 622 and the water outlet 522 are located form the auxiliary water path; the switch rod 4 controls whether the pressure relief hole 622 is opened or not by moving along the axial direction, and the auxiliary waterway where the switch rod is located is opened along with the opening of the pressure relief hole, so that the water inlet is communicated with the water outlet, and the main waterway is opened.

In this embodiment, the valve housing 5 includes a pressing cover 51 and an outer housing 52 with an open top end, the pressing cover 51 is connected with the top of the outer housing 52 in a sealing manner, specifically, the pressing cover 51 is connected with the outer housing 52 in a snap-fit manner, and a gap between the pressing cover 51 and the outer housing 52 is sealed by an O-ring 53. The lateral wall of shell 52 is equipped with water inlet 521, and shell 52 bottom is equipped with delivery port 522, and shell 52 bottom is equipped with intercommunication delivery port 522 and to the inside annular boss 523 that extends of shell 52, and shell 52 lateral surface cover is equipped with sealing washer 54, and shell 52 bottom cover is equipped with sealed pad 55. The diaphragm unit 6 is arranged between the gland 51 and the shell 52, and encloses the water pressure cavity 63 with the gland 51; as the pressure relief hole 622 is opened, the diaphragm unit 6 is separated from the top end of the annular boss 523; with the pressure relief hole 622 closed, the diaphragm unit 6 abuts on the top end of the annular boss 523.

In this embodiment, the rocker 12 of the button 1 is mounted on the gland 51 in a seesaw manner, and the positioning structure is engaged between the rocker 12 of the button 1 and the gland 51. Specifically, the top surface of the pressing cover 51 is provided with two opposite mounting lugs 513, the bottom of the middle position of the rocker 12 is provided with two opposite protruding shafts 121, and the two protruding shafts 121 are respectively movably inserted into the shaft holes formed on the two mounting lugs 513. The switching rod 4 passes through the gland 51 downwards to enter the water pressure chamber 63, and a gap between the switching rod 4 and the gland 51 is sealed by an O-ring 42.

In this embodiment, the diaphragm unit 6 includes a diaphragm 62 and an auxiliary spring 61, the peripheral edge of the diaphragm 62 is limited between the gland 51 and the housing 52, and the middle of the diaphragm 62 is provided with the pressure relief hole 622; the auxiliary spring 61 is abutted between the diaphragm 62 and the gland 51, and the tip of the top end of the auxiliary spring 61 is bent downward and passes through a through hole provided on the diaphragm 62, so that the damping hole 621 is formed by a gap between the through hole and the tip of the auxiliary spring 61.

In this embodiment, the switch lever 4 passes through the pressure relief hole 622, and the switch lever 4 has a sealing portion 43, and the switch lever 4 moves axially to close or open the pressure relief hole 622 by the sealing portion 43. The sealing portion 43 is specifically realized by the corresponding portion of the switching rod 4 through reducing processing, and besides, a sealing ring is sleeved on the switching rod, and the sealing portion is formed by the sealing ring.

The utility model discloses a press lever pilot valve case to its initial condition is opened for the main water route and explains its working process:

when switching to the state of closing the main waterway is required, the left end of the button cap 11 is pressed, the collision bead 22 hits the positioning groove 512 on the right side, and the whole button 1 is kept in the state of tilting the right end by the reaction force of the spring 21 of the spring collision bead 2, as shown in fig. 4. In the process, the slider 3 slides leftwards under the downward pressure of the rocker 12 of the button 1 and presses the switching rod 4 downwards, so that the switching rod 4 moves downwards to close the pressure relief hole 622, at the moment, because the damping hole 621 is kept in an open state and is communicated with the water inlet 521, the water pressure in the water pressure cavity 63 is increased, the diaphragm 62 is under the downward water pressure, and the sum of the water pressure and the elastic force of the auxiliary spring 61 enables the middle part of the diaphragm 62 to abut against the top end of the annular boss 523, as shown in fig. 4, so that the communication between the water inlet 521 and the water outlet 522 is cut off, and the main water path of the valve core is closed.

When the main water passage is switched to the open state in the closed state of the main water passage, the right end of the button cap 11 of the button 1 is pressed, the collision bead 22 reaches the left positioning groove 511, and the whole button 1 is maintained in the state of tilting the left end by the reaction force of the spring 21 of the spring collision bead 2, as shown in fig. 5. In this process, the slider 3 slides rightward and pulls up the switching rod 4 by the upward pulling force of the rocker 12 of the button 1, so that the switching rod 4 moves upward to open the pressure release hole 622, at this time, the water in the water pressure chamber 63 flows out through the pressure release hole 622 to release the pressure, the diaphragm 62 receives an upward water pressure which is greater than the elastic force of the auxiliary spring 61, and the middle part of the diaphragm 62 is urged to leave the top end of the annular boss 523, as shown in fig. 5, the water inlet 521 is communicated with the water outlet 522, so that the main water path is opened.

The utility model discloses a press lever pilot valve case, its button 1 constitutes the lever structure, and the cooperation switches pole 4 and realizes the switch water switching function of case, and overall structure is simple not only, presses laborsaving moreover, presses stroke weak point, convenient operation.

The utility model relates to a switch valve, which comprises a valve body, wherein the valve body is provided with a containing cavity, an inlet and an outlet; the valve also comprises a pressing lever type pilot valve core, the pilot valve core is arranged in the accommodating cavity of the valve body, and a gap between the two is sealed by the O-shaped ring 54 and the sealing gasket 55; the button 1 is exposed, and the inlet of the valve body is communicated with the outlet through the main water way. Specifically, the water inlet 521 is communicated with an inlet of the valve body, and the water outlet 522 is communicated with an outlet of the valve body. The number of the water inlets 521 may be one or two, etc., and when two, the two water inlets may be a hot water inlet and a cold water inlet, respectively.

The utility model discloses a switching valve, the switching process of its switching water is as above, and further no longer give consideration to here.

The above-mentioned embodiment only is used for further explaining the utility model discloses a press lever pilot valve case and ooff valve, nevertheless the utility model discloses do not confine the embodiment to, all be according to the utility model discloses a technical entity all falls into the protection scope of the technical scheme of the utility model to any simple modification, the equivalent change and the decoration that the above embodiment was done.

Claims

1. A press lever type pilot valve core comprises a valve shell, a diaphragm unit and a switching mechanism, wherein the diaphragm unit is arranged in the valve shell and is matched with the valve shell to form an auxiliary water path; the method is characterized in that: the switching mechanism comprises a button and a switching rod, the button is arranged on the valve shell in a seesaw mode, and a positioning structure for locking the position of the button is matched between the button and the valve shell; the switch rod partially extends into the valve casing, two opposite ends of the button can be pressed respectively, and the switch rod is linked to move along the axial direction of the button to open or close the auxiliary water channel.

2. The push lever pilot valve cartridge of claim 1, wherein: the switching mechanism comprises a sliding block, the button is rotationally connected with the sliding block, and the rotation axis of the button is parallel to that of the button; the sliding block is connected with one end of the switching rod exposed outside the valve shell in a sliding mode, and the sliding direction is located in the direction of two ends of the button.

3. The pressure lever pilot valve cartridge of claim 2, wherein: the sliding guide structure is matched between the sliding block and the switching rod and comprises a T-shaped sliding part arranged on the sliding block and a T-shaped sliding groove arranged at one end of the switching rod exposed outside the valve shell, the length of the sliding groove is greater than that of the sliding part, and the sliding part and the sliding groove are sleeved together in a sliding mode.

4. The pressure lever pilot valve cartridge of claim 2, wherein: the button includes button cap and the wane of setting in this button cap, and the wane is installed on the valve casing with the seesaw form to and cooperate between the valve casing have location structure, the slider rotates with the seesaw to be connected.

5. The push lever pilot valve cartridge of any one of claims 1-4, wherein: the positioning structure comprises a spring touch bead and a positioning groove group, the spring touch bead is arranged in one of the button and the valve casing and is positioned at the rotary joint of the button and the valve casing, the positioning groove group is arranged in the other of the button and the valve casing, the positioning groove group comprises two positioning grooves, and the spring touch bead is switched and matched with the two positioning grooves through rotation along with the button.

6. The push lever pilot valve cartridge of claim 1, wherein: the valve shell is provided with a water inlet and a water outlet, and a passage where the water inlet and the water outlet are located forms the main waterway; the diaphragm unit and the valve shell form a hydraulic pressure cavity in an enclosing mode, a damping hole and a pressure relief hole are formed in the diaphragm unit, and a passage where the water inlet, the damping hole, the hydraulic pressure cavity, the pressure relief hole and the water outlet are located forms the auxiliary waterway; the switching rod controls the pressure relief hole to be opened or closed through moving along the axial direction of the switching rod, and the auxiliary waterway is opened along with the opening of the pressure relief hole, so that the water inlet is communicated with the water outlet.

7. The pressure lever pilot valve cartridge of claim 6, wherein: the valve shell comprises a gland and a shell with an opening at the top end, the gland is hermetically connected with the top of the shell, the side wall of the shell is provided with the water inlet, the bottom of the shell is provided with the water outlet, and the bottom of the shell is provided with an annular boss which is communicated with the water outlet and extends towards the inside of the shell; the diaphragm unit is arranged between the gland and the shell and forms the hydraulic pressure cavity with the gland; with the opening of the pressure relief hole, the diaphragm unit is separated from the top end of the annular boss; with the closing of the pressure relief hole, the diaphragm unit abuts against the top end of the annular boss; the button is arranged on the gland in a seesaw mode, and the positioning structure is matched between the button and the gland; the switching rod downwards penetrates through the gland to enter the hydraulic pressure cavity.

8. The pressure lever pilot valve cartridge of claim 7, wherein: the diaphragm unit comprises a diaphragm and an auxiliary spring, the peripheral edge of the diaphragm is limited between the gland and the shell, and the middle part of the diaphragm is provided with the pressure relief hole; the auxiliary spring is abutted between the diaphragm and the gland, and one end of the auxiliary spring is bent and penetrates through a through hole formed in the diaphragm, so that the damping hole is formed in a gap between the through hole and the end of the auxiliary spring.

9. A push lever pilot valve cartridge according to claim 6 or 7 or 8, wherein: the switching rod penetrates through the pressure relief hole and is provided with a sealing part, and the switching rod enables the sealing part to open or block the pressure relief hole through axial movement.

10. A switch valve comprises a valve body, wherein the valve body is provided with an accommodating cavity, at least one inlet and an outlet; the method is characterized in that: the push lever type pilot valve core is mounted in a containing cavity of the valve body, and the push button is exposed; the inlet of the valve body is communicated with the outlet through the main waterway.