CN215371056U

CN215371056U - Multi-gear valve core capable of discharging at fixed time

Info

Publication number: CN215371056U
Application number: CN202121318498.8U
Authority: CN
Inventors: 李益荣; 王杰; 李侠君
Original assignee: Wenzhou Jiarong Sanitary Ware Co ltd
Current assignee: Wenzhou Jiarong Sanitary Ware Co ltd
Priority date: 2021-06-11
Filing date: 2021-06-11
Publication date: 2021-12-31
Anticipated expiration: 2031-06-11

Abstract

The utility model relates to a multi-gear timed outflow valve core which comprises a valve core main body, a control part, a valve rod, a connecting part and a first return spring, wherein a flow passage, an inflow port and an outflow port are formed in the valve core main body, the control part is installed in the flow passage in a sliding mode, an upper positioning end is arranged in the flow passage, the first return spring is arranged below the control part in a compression mode, the valve rod is installed in the valve core main body in a sliding mode along the axial direction and in a circumferential rotation mode, the valve core main body is provided with a stroke area, the connecting part is installed in the valve core main body in a sliding mode, a gear shifting guide rail is arranged on the periphery of the valve rod, the connecting part is provided with a sliding convex block, a plurality of gear grooves are arranged in the gear shifting guide rail in an arrayed mode, a gear convex block is arranged on the sliding convex block, and a driving end is arranged at the lower end of the connecting part. By adopting the scheme, the valve core for multi-gear timing outflow is provided, wherein the movement stroke of the valve rod is limited, and the distance between the driving end and the control piece is adjusted by rotating the valve rod in the circumferential direction, so that the stroke of the valve rod for opening the control piece is changed to realize different outflow rates.

Description

Multi-gear valve core capable of discharging at fixed time

Technical Field

The utility model relates to a multi-gear valve core with timed outflow.

Background

The valve core is one of important parts of control parts used in fluid systems such as water taps, valves and the like. The valve core is one of valve parts which realize the basic function of opening and closing the flow passage in a moving mode.

The timing valve core is widely applied to the existing valve core, and the valve rod is adopted to drive the control piece to open the flow channel, and then the control piece is driven to gradually reset in a resetting mode through the reset spring, so that the flow rate is controlled by controlling the opening duration of the flow channel.

The problem that current timing valve core exists lies in: the existing timing valve core has constant outlet flow, so that a single valve core cannot simultaneously realize the adaptation of a plurality of outlet flows to different water using conditions.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model aims to provide a multi-gear valve core for timed outflow, which limits the movement stroke of a valve rod and adjusts the distance between a driving end and a control piece by circumferentially rotating the valve rod, so that the stroke of the valve rod for opening the control piece is changed to realize different outflow rates.

In order to achieve the purpose, the utility model provides the following technical scheme: the valve core comprises a valve core main body, a control part, a valve rod, a connecting part and a first return spring, wherein a flow channel is arranged in the valve core main body, the flow channel penetrates through the valve core main body and is provided with a flow inlet and a flow outlet, the control part is arranged in the flow channel in a sliding manner along the vertical direction, the flow inlet is positioned on a sliding track of the control part, an upper positioning end used for limiting the control part to slide upwards is arranged above the control part in the flow channel, when the control part abuts against the upper positioning end, the control part seals the flow inlet, the first return spring is arranged below the control part in a compression manner, the return direction of the first return spring is the same as the upward sliding direction of the control part, the valve rod is arranged along the vertical direction, the valve rod is arranged in the valve core main body in a sliding manner along the axial direction and in a circumferential rotation manner and is arranged above the control part, the valve core main body is provided with a stroke area used for limiting the vertical sliding of the valve rod, the connecting piece is located between control piece and the valve rod, and the connecting piece is installed in case main part along vertical sliding, the valve rod periphery is provided with the gear shift guide rail that is the spiral and extends down, the connecting piece is provided with the slide lug of sliding installation in the gear shift guide rail, the gear shift guide rail is provided with a plurality of gear recesses along the rail direction range, be provided with the gear lug that is used for the joint in the gear recess on the slide lug, the lower extreme of connecting piece is provided with the drive end that is used for pushing the control piece downwards.

The utility model is further configured to: the gear shifting guide rail comprises positioning sections located at the positions of the gear grooves, and the rail direction of each positioning section extends along the circumferential direction of the valve rod.

The utility model is further configured to: the valve core is characterized in that a second reset spring is compressed between the valve core main body and the valve rod, the reset direction of the second reset spring is the same as the upward sliding direction of the valve rod, a sealing surface attached to the peripheral wall of the flow channel is arranged on the periphery of the control piece, the control piece is provided with a partition plate used for vertically dividing the flow channel, a communicating hole is formed in the partition plate in a vertical penetrating mode, the communicating hole is located under the driving end, a mounting groove is formed in the sealing surface, and a resistance increasing piece used for increasing the resistance of the control piece to slide vertically is arranged in the mounting groove.

The utility model is further configured to: and a lower positioning end used for limiting the control piece to slide downwards is arranged below the control piece in the flow channel, a locking groove is arranged in the gear shifting guide rail, and when the gear lug is positioned in the locking groove, the control piece is abutted against the lower positioning end.

The utility model is further configured to: and a sealing ring used for extruding the partition plate to seal the communicating hole is fixedly arranged at the lower end of the driving end.

The utility model is further configured to: the mounting groove and the resistance increasing piece are both arranged in an annular shape and are positioned at the lower end of the flow inlet.

The utility model is further configured to: the number of the gear shifting guide rails on the valve rod is a plurality of, the gear shifting guide rails are arranged along the circumferential direction of the valve rod, and the number and the positions of the sliding lugs on the connecting piece are arranged corresponding to the gear shifting guide rails on the valve rod.

By adopting the technical scheme, 1, the valve rod is driven downwards, so that the control piece can be pushed downwards by the driving end of the connecting piece, the control piece moves downwards to open the flow inlet so as to communicate the flow channel, when the valve rod is not driven, the control piece is driven to move upwards under the reset acting force of the first reset spring so as to close the flow inlet, and the flow outlet is determined by the reset duration of the first reset spring for driving the control piece; 2. the valve rod is rotated in the circumferential direction, so that the connecting piece is driven to vertically slide under the matching action of the sliding lug and the gear shifting guide rail, the distance from the driving end to the control piece is changed, the descending distances of the control piece driven by the same stroke of the valve rod are different under the limitation of a stroke area, and the resetting time of the control piece is changed to adjust the outflow rate; 3. adopt the cooperation of gear recess and gear lug for confirm the gear through the mode of joint, and under this gear, the joint effect can be when the valve rod down, prevent to cause the gear change because the cooperation of sliding lug and gear shift guide rail and the circumferential direction of valve rod, guarantee the stability of gear.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a cross-sectional view of an embodiment of the present invention;

FIG. 2 is an assembly view of a valve stem and connector according to an embodiment of the present invention;

FIG. 3 is an exploded view of a valve stem and connector according to an embodiment of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3;

FIG. 5 is an enlarged view of A in FIG. 4;

FIG. 6 is an enlarged view of B in FIG. 4;

FIG. 7 is an enlarged view of C in FIG. 1;

fig. 8 is an enlarged view of D in fig. 4.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-6, the utility model discloses a multi-gear timed outflow valve core, which comprises a valve core main body 1, a control member 2, a valve rod 3, a connecting member 4 and a first return spring 5, wherein a flow passage 11 is arranged in the valve core main body 1, the flow passage 11 penetrates through the side wall of the valve core main body 1 and is provided with a flow inlet 12, and the lower end penetrating through the valve core main body 1 is provided with a flow outlet 13, the control member 2 is slidably mounted in the flow passage 11 along the vertical direction, the periphery of the control member 2 is provided with a sealing surface 21 which is attached to the peripheral wall of the flow passage 11, and the flow inlet 12 is located on the sliding track of the control member 2, so that the flow inlet 12 is sealed by the sealing surface 21 when the control member 2 moves to the flow inlet 12, the flow passage 11 is cut off, in addition, an upper positioning end 14 for limiting the control member 2 from sliding upwards is arranged above the control member 2 in the flow passage 11, when the control member 2 abuts against the upper positioning end 14, the control member 2 seals the inlet 12, in addition, the first return spring 5 is arranged below the control member 2 in a compressed manner, the return direction of the first return spring 5 is the same as the upward sliding direction of the control member 2, in addition, the axial direction of the valve rod 3 is vertically arranged, the periphery of the valve rod 3 is cylindrical, the valve rod 3 is arranged on the valve core main body 1 in an axial sliding and circumferential rotating manner in a mode of penetrating the valve core main body 1 and is positioned above the control member 2, in addition, the valve core main body 1 is provided with a stroke area 15 for limiting the vertical sliding of the valve rod 3, the valve rod 3 is integrally formed with a stroke lug 31 in the stroke area 15, the vertical sliding of the valve rod 3 is limited by the sliding of the stroke lug 31 in the stroke area 15, in addition, the connecting member 4 is positioned between the control member 2 and the valve rod 3, the periphery of the connecting member 4 is in a square shape, and the periphery of the square shape is clamped in the flow passage 11 to realize the vertical sliding and is arranged on the valve core main body 1, in addition, the periphery of the valve rod 3 is provided with a shift guide rail 32 which extends downwards in a spiral manner, the connecting piece 4 is provided with a sliding lug 41 which is installed in the shift guide rail 32 in a sliding manner and is integrally formed and protruded towards the inside of the shift guide rail 32, so that the valve rod 3 can drive the connecting piece to vertically slide under the matching action of the sliding lug 41 and the shift guide rail 32 through rotation, in addition, the shift guide rail 32 is provided with 2 shift grooves 33 (the number of the shift grooves 33 can be increased or decreased according to actual requirements) in the rail direction, correspondingly, the sliding lug 41 is provided with a shift lug 42 which is used for being clamped in the shift groove 33 in a protruding manner and integrally formed, so that the confirmation of the shift is carried out through the matching of the shift groove 33 and the shift lug 42, and in addition, the lower end of the connecting piece 4 is provided with a driving end 43 which is used for pushing the control piece 2 downwards.

Therefore, the valve rod 3 is driven downwards, the control member 2 is pushed downwards through the driving end 43 of the connecting member 4, the control member 2 is driven downwards to open the flow inlet 12, so as to communicate the flow passage 11, when the driving of the valve rod 3 is removed, the control member 2 is driven upwards under the reset acting force of the first reset spring 5 to close the flow inlet 12, the flow rate is determined by the reset time of the first reset spring 5 for driving the control member 2, in addition, the connecting member 4 is driven to vertically slide under the matching action of the sliding lug 41 and the shift guide rail 32 through circumferentially rotating the valve rod 3, so as to change the distance from the driving end 43 to the control member 2, so that the valve rod 3 drives the control member 2 to descend at the same stroke under the limitation of the stroke area 15, so as to change the reset time of the control member 2 to adjust the flow rate, and finally, the matching of the gear groove 33 and the gear lug 42 is adopted, the gear is determined through clamping, and under the gear, the clamping effect can prevent gear change caused by circumferential rotation of the valve rod 3 due to the matching effect of the sliding lug 41 and the gear shifting guide rail 32 when the valve rod 3 faces downwards, and the stability of the gear is ensured.

Preferably, the shift rail 32 in this embodiment includes the positioning section 321 located at each gear groove 33, and the track direction of each positioning section 321 extends along the circumference of the valve rod 3, therefore, the sliding protrusion 41 pushes the valve rod 3 downwards when being fastened to the positioning section 321, the interaction force between the sliding protrusion 41 and the positioning section 321 is vertical, so as to ensure that the interaction force is perpendicular to the track direction of the positioning section 321, further prevent the gear change caused by the circumferential rotation of the valve rod 3 due to the cooperation between the sliding protrusion 41 and the shift rail 32 when the valve rod 3 is driven downwards, and ensure the stability of the gear.

Preferably, the number of the shift rails 32 on the valve rod 3 in the embodiment is 2, and the shift rails 32 are arranged in a circumferential direction of the valve rod 3, and the number and positions of the sliding protrusions 41 on the connecting member 4 are arranged corresponding to the shift rails 32 on the valve rod 3, so that the rotating of the valve rod 3 drives the connecting member 4 to slide vertically more smoothly by matching the plurality of sliding protrusions 41 in the circumferential direction with the shift rails 32.

Referring to fig. 7, a second return spring 6 is sleeved on the periphery of the valve rod 3 in this embodiment, and the second return spring 6 is compressed and disposed between the lower end of the stroke protrusion 31 and the valve core main body 1, so that the return direction of the second return spring 6 is the same as the upward sliding direction of the valve rod 3, in addition, a partition plate 22 for partitioning the flow channel 11 vertically is integrally formed above the control member 2, a communication hole 23 is vertically penetrated through the partition plate 22, and the communication hole 23 is located right below the driving end 43, in addition, a mounting groove 24 is formed on the sealing surface 21, and a resistance increasing member 7 for increasing the resistance of the control member 2 to slide vertically is disposed in the mounting groove 24 (the resistance increasing member 7 may be supported by a material with a larger friction coefficient such as rubber, and the resistance increasing effect is adjusted by adjusting the extrusion strength of the resistance increasing member and the peripheral wall of the flow channel 11). Therefore, when the valve rod 3 is driven downwards, the driving end 43 will seal the communication hole 23, so that even if the flow inlet 12 is opened, the flow channel 11 is usually in a closed state, and the flow channel 11 is opened when the valve rod 3 loses external force, thereby ensuring that the flow rate is not determined (human factors exist) along with the time length of the downward movement of the valve rod 3, and completely depending on the parameters of the valve core, so that the flow rate is controlled more accurately, in addition, the resistance increasing piece 7 is arranged, when the valve rod 3 loses external force, the connecting piece 4 is separated from the control piece 2 more effectively, thereby ensuring the effective outflow time length and ensuring the flow rate.

Preferably, the mounting groove 24 and the resistance increasing member 7 in this embodiment are both disposed annularly and located at the lower end of the flow inlet 12, so that not only the contact area between the resistance increasing member 7 and the peripheral wall of the flow channel 11 is increased to improve the resistance increasing effect, but also the resistance increasing member 7 can seal to prevent the flow inlet 12 from leaking from the lower side of the control member 2.

Referring to fig. 8, in the flow channel 11 of the present embodiment, a lower positioning end 16 for limiting the downward sliding of the control member 2 is disposed below the control member 2, and a locking groove 34 is disposed in the shift rail 32, when the shift protrusion 42 is disposed in the locking groove 34, the control member 2 abuts against the lower positioning end 16, so that the valve rod 3 can be vertically locked by rotating the valve rod 3 and by being clamped with the shift protrusion 42 through the locking groove 34, and the driving end 43 seals the communication hole 23, which prevents waste caused by pressing the valve rod 3 to flow when the valve rod 3 is not needed.

Preferably, the lower end of the driving end 43 in this embodiment is fixedly provided with a sealing ring 8 for pressing the partition plate 22 to close the communication hole 23, so that the sealing effect of the driving end 43 on the communication hole 23 is enhanced by the sealing ring 8, and the sealing performance of the valve rod 3 under locking is further ensured.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a case that many grades of regularly flow out which characterized in that: the valve core comprises a valve core main body, a control part, a valve rod, a connecting part and a first return spring, wherein a flow channel is arranged in the valve core main body, the flow channel penetrates through the valve core main body and is provided with a flow inlet and a flow outlet, the control part is arranged in the flow channel in a sliding manner along the vertical direction, the flow inlet is positioned on a sliding track of the control part, an upper positioning end used for limiting the control part to slide upwards is arranged above the control part in the flow channel, when the control part abuts against the upper positioning end, the control part seals the flow inlet, the first return spring is arranged below the control part in a compression manner, the return direction of the first return spring is the same as the upward sliding direction of the control part, the valve rod is arranged along the vertical direction, the valve rod is arranged in the valve core main body in a sliding manner along the axial direction and in a circumferential rotation manner and is arranged above the control part, the valve core main body is provided with a stroke area used for limiting the vertical sliding of the valve rod, the connecting piece is located between control piece and the valve rod, and the connecting piece is installed in case main part along vertical sliding, the valve rod periphery is provided with the gear shift guide rail that is the spiral and extends down, the connecting piece is provided with the slide lug of sliding installation in the gear shift guide rail, the gear shift guide rail is provided with a plurality of gear recesses along the rail direction range, be provided with the gear lug that is used for the joint in the gear recess on the slide lug, the lower extreme of connecting piece is provided with the drive end that is used for pushing the control piece downwards.

2. The valve core of the multi-gear timing outflow of claim 1, wherein: the gear shifting guide rail comprises positioning sections located at the positions of the gear grooves, and the rail direction of each positioning section extends along the circumferential direction of the valve rod.

3. The valve core of the multi-gear timing outflow of claim 1, wherein: the valve core is characterized in that a second reset spring is compressed between the valve core main body and the valve rod, the reset direction of the second reset spring is the same as the upward sliding direction of the valve rod, a sealing surface attached to the peripheral wall of the flow channel is arranged on the periphery of the control piece, the control piece is provided with a partition plate used for vertically dividing the flow channel, a communicating hole is formed in the partition plate in a vertical penetrating mode, the communicating hole is located under the driving end, a mounting groove is formed in the sealing surface, and a resistance increasing piece used for increasing the vertical sliding resistance of the control piece is arranged in the mounting groove.

4. The valve core of the multi-gear timing outflow valve according to claim 3, wherein: and a lower positioning end used for limiting the control piece to slide downwards is arranged below the control piece in the flow channel, a locking groove is arranged in the gear shifting guide rail, and when the gear lug is positioned in the locking groove, the control piece is abutted against the lower positioning end.

5. The valve core of the multi-gear timing outflow valve according to claim 4, wherein: and a sealing ring used for extruding the partition plate to seal the communicating hole is fixedly arranged at the lower end of the driving end.

6. The valve core of the multi-gear timing outflow valve according to claim 3, wherein: the mounting groove and the resistance increasing piece are both arranged in an annular shape and are positioned at the lower end of the flow inlet.

7. The valve core of the multi-gear timing outflow of claim 1, wherein: the number of the gear shifting guide rails on the valve rod is a plurality of, the gear shifting guide rails are arranged along the circumferential direction of the valve rod, and the number and the positions of the sliding lugs on the connecting piece are arranged corresponding to the gear shifting guide rails on the valve rod.