CN214171417U

CN214171417U - Throttle feed module

Info

Publication number: CN214171417U
Application number: CN202023349670.4U
Authority: CN
Inventors: 李文明; 杨高
Original assignee: Shenzhen Hengzhiyun Technology Co Ltd
Current assignee: Shenzhen Hengzhiyun Technology Co Ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-09-10
Anticipated expiration: 2030-12-31

Abstract

The utility model relates to a throttle feed module for throttle water route system, water route system includes valve body, opening in the first slotted hole of valve body terminal surface and the water inlet of the first slotted hole of intercommunication, including fixed plate, feed bar, cyclic annular sealing member, elastic component and the case that matches with the water inlet, wherein: the fixing plate is fixed on the end face of the valve body and is provided with a first threaded hole penetrating through the thickness of the fixing plate; one end of the sealing element is fixed between the fixing plate and the valve body, and the other end of the sealing element is embedded in the valve core; the feed rod is provided with an external thread, is connected with the first threaded hole and can be abutted against the valve core; the valve core is arranged in the first slotted hole in a sliding manner and used for adjusting the water inlet section area of the water inlet; the elastic piece is abutted against the surface of the valve core opposite to the fixed plate or the first slotted hole; the valve core is pushed to move in the first groove hole through the rotary feeding rod, so that the relative position of the valve core and the water inlet is adjusted, the water inlet cross-sectional area of the water inlet can be accurately adjusted, the throttling area is accurately controlled, and the sealing performance is good.

Description

Throttle feed module

Technical Field

The utility model relates to a check valve technical field especially relates to a throttle feeds module.

Background

Along with the continuous improvement of computer technology, automatic control technique and people's quality of life, have bath waterway system and clean waterway system and can realize ordinary washing and women abluent intelligent closestool lid to its intelligence is washd, clean health, is preheated advantages such as comfortable, convenient operation, energy-conserving power saving, receives people's favor gradually.

At present, the bath waterway system and the clean waterway system of intelligent toilet lid all include the throttling component that can realize the throttle function, and throttling component includes plastic hose and valve rod or air supply, and throttling component produces the throttle through the area that changes the throttle cross-section of plastic hose, for example presss from both sides tightly or loosens the area that the plastic hose changed the throttle cross-section through the valve rod, or compress or reduce gas pressure and relax the area that the plastic hose changed the throttle cross-section through increasing pressure. However, in the existing throttling assembly, the plastic hose can generate creep deformation due to long-time extrusion of the valve rod or the air source, so that the area of the throttling section is changed when the valve rod or the air source does not act, the problem of poor throttling stability is caused, and the product performance is influenced. And current throttling assembly is when assembling in waterway system the plastic hose because of its material is soft destroyed easily, leads to the product yield lower, adjusts the plastic hose through valve rod or air supply and realizes that the throttle accommodation process is comparatively loaded down with trivial details, the regulation precision is lower moreover.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a throttle feeding module to solve the problem of poor throttling effect of the conventional throttling assembly.

The utility model provides a throttle and feed module for throttle waterway system, waterway system includes the valve body, the opening in the first slotted hole of valve body terminal surface and the water inlet of intercommunication first slotted hole, including fixed plate, feed bar, cyclic annular sealing member, elastic component and with the case that the water inlet matches, wherein:

the fixing plate is fixed on the end face of the valve body and is provided with a first threaded hole penetrating through the thickness of the fixing plate;

one end of the sealing element is fixed between the fixing plate and the valve body, and the other end of the sealing element is embedded in the valve core;

the feed rod is provided with an external thread, is connected with the first threaded hole and can be abutted against the valve core;

the valve core is slidably arranged in the first slotted hole and used for adjusting the water inlet cross-sectional area of the water inlet;

the elastic piece is abutted against the surface of the valve core opposite to the fixed plate or the first groove hole.

In the throttling feeding module, the fixing plate is fixed on the valve body, one end of the annular sealing element is fixed between the fixing plate and the valve body so as to seal the fixing plate and the valve body, and the other end of the annular sealing element is embedded in the valve core so as to seal the valve body and the valve core and avoid water flow overflow. The feed rod is inserted into the first threaded hole and is in threaded connection with the first threaded hole through the external thread, the feed rod is rotated, the feed rod moves in the first threaded hole along the axis direction under the action of threaded connection, the feed rod moves towards the valve body when the feed rod is rotated in the forward direction, the feed rod pushes the valve core in contact with the feed rod to move towards the bottom of the first slotted hole in the first slotted hole, the elastic piece deforms, the valve core blocks the water inlet so as to reduce the water inlet section area of the water inlet, the feed rod moves towards the outside of the valve body when the feed rod is rotated in the reverse direction, the elastic force of the elastic piece enables the valve core to move towards the bottom of the first slotted hole along with the feed rod, the range of the valve core blocking the water inlet is reduced so as to increase the water inlet section area of the water inlet, therefore, the valve body is provided with the waterway system, and the first slotted hole and the water inlet are formed on the valve body, the throttle area is adjusted by adjusting the relative position of the valve core and the water inlet, a plastic hose is omitted relative to the existing throttle assembly, and the water inlet cross-sectional area of the water inlet can be accurately adjusted through the throttle feeding module, so that the throttle area is precisely controlled, and the sealing performance is better.

In one embodiment, the throttling feeding module further comprises a knob, the knob is covered on the outer side of the feeding rod, a limiting column is formed inside the knob, a second groove hole opened on the end face of the limiting column is formed in the limiting column, the end portion of the feeding rod is embedded in the second groove hole, a first clamping hook is formed at one end of the knob, an annular first clamping groove matched with the first clamping hook is formed in the fixing plate, and the first clamping hook is clamped in the first clamping groove and can rotate around the axis of the feeding rod.

In one embodiment, the fixing plate includes a housing and an upper cover, the upper cover includes an annular top wall, a side wall and a second hook, wherein:

the shell protrudes outwards to form a cover box end, a plurality of second clamping grooves are formed in the cover box end, and the first threaded holes penetrate through the cover box end;

one end of the side wall is fixedly connected with the top wall, the other end of the side wall is fixed with the second clamping hook, the second clamping hook is clamped in the second clamping groove, and the top wall, the side wall and the end face of the cover box end are enclosed to form the first clamping groove.

In one embodiment, the seal has a first seal segment, a second seal segment, and a third seal segment integrally formed, wherein:

the first sealing section is positioned between the shell and the valve body, and the shell and the valve body jointly extrude the first sealing section when the shell is fixed on the valve body;

the second sealing section forms a groove which extends towards one side of the first sealing section away from the third sealing section;

the third sealing section is inserted into the valve core and is fixedly connected with the valve core.

In one embodiment, a baffle is arranged on the outer side of the feed rod, the baffle is arranged on one side of the external thread, which is far away from the valve core, and is positioned between the limiting column and the end face, which is opposite to the fixing plate, of the limiting column, and the projection of the baffle on the end face of the limiting column is positioned on the outer side of the second slotted hole.

In one embodiment, the valve core comprises a cavity with an opening at one end, a third clamping groove is formed in the cavity, a third clamping hook is formed at one end of the sealing element, the third clamping hook is embedded in the third clamping groove, a supporting column is formed inside the cavity, and the feeding rod abuts against the supporting column.

In one embodiment, the support column is provided with a first stepped hole, a large hole of the first stepped hole opens at the end face of the support column, the feed rod is provided with an abutting section, the abutting section is provided with a small end and a large end along the axis direction of the abutting section, and the small hole opening area of the first stepped hole is larger than the sectional area of the small end and smaller than the sectional area of the large end.

In one embodiment, the first stepped bore has an arcuate first step surface surrounding the axis of the support post, and the outer surface of the abutment section has a spherical surface matching the first step surface.

In one embodiment, the elastic member is a spring, a connecting hole is formed in the side wall of the supporting column along the radial direction of the supporting column, a fourth clamping groove is formed in the fixing plate, the spring is sleeved on the outer side of the feeding rod, one end of the spring is inserted into the connecting hole, and the other end of the spring is embedded in the fourth clamping groove.

In one embodiment, the seal and the valve element are integrally formed.

Drawings

Fig. 1 is a schematic structural diagram of a throttling feeding module provided by the present invention;

fig. 2 is an exploded schematic view of a throttle feed module provided by the present invention;

fig. 3 is a partial cross-sectional view of a module formed by the throttling feeding module and the waterway system provided by the present invention;

fig. 4 is a front view of a throttle feed module provided by the present invention;

fig. 5 is a sectional view taken along line a-a in fig. 4.

Reference numerals:

10. a throttle feed module;

100. a fixing plate; 110. a first threaded hole; 120. a second threaded hole; 130. a first card slot; 140. a housing; 141. covering the box end; 142. a second card slot; 143. a groove; 150. an upper cover; 151. a top wall; 152. a side wall; 153. a second hook;

200. a feed bar; 210. an external thread; 220. a baffle plate; 230. an abutment section; 231. a small end; 232. a large end; 233. a spherical surface;

300. a seal member; 310. a first seal section; 320. a second seal section; 321. a trench; 330. a third seal section; 340. a third hook;

400. an elastic member;

500. a valve core; 510. a cavity; 511. a third card slot; 520. a support pillar; 521. a first stepped hole; 5211. a first step surface; 522. connecting holes;

600. a knob; 610. a limiting column; 611. a second slot; 620. a first hook;

20. a waterway system; 21. a valve body; 22. a first slot; 23. a water inlet; 24. a third threaded hole;

30. a fastener.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The technical solution provided by the embodiments of the present invention is described below with reference to the accompanying drawings.

As shown in fig. 1, fig. 2 and fig. 3, the utility model provides a module 10 is fed in to throttle, this module 10 is fed in to throttle is used for throttling waterway system 20, waterway system 20 includes valve body 21, first slotted hole 22 and water inlet 23, and first slotted hole 22 opens in valve body 21 terminal surface to extend certain degree of depth towards the inside of valve body 21, water inlet 23 opens in the pore wall of first slotted hole 22, and extend certain degree of depth towards the inside of valve body 21, and water inlet 23 is linked together with first slotted hole 22. The throttle feed module 10 comprises a fixing plate 100, a feed rod 200, an annular sealing member 300, an elastic member 400 and a valve core 500 matched with the water inlet 23, wherein the valve core 500 is driven by the feed rod 200 to move in the first slot hole 22, and the relative position between the valve core 500 and the water inlet 23 is adjusted, so that the problem of poor throttling effect of the existing throttling assembly is solved. In the throttle feed module 10:

the fixing plate 100 is provided with a first threaded hole 110, the first threaded hole 110 penetrates through the thickness of the fixing plate 100 along a direction parallel to the axial direction of the first slot 22, and preferably, the axial direction of the first threaded hole 110 coincides with the axial direction of the first slot 22. The fixing plate 100 is disposed on the end face of the valve body 21, the fixing plate 100 is provided with the second threaded hole 120, the valve body 21 is provided with the third threaded hole 24, and the fixing plate 100 and the valve body 21 can be fixed together by a fastening member, and of course, the fixing connection mode between the fixing plate 100 and the valve body 21 is not limited to this, and other modes capable of meeting the connection requirement, such as a snap connection, a concave-convex fit, and the like, can also be adopted.

One end of the sealing member 300 is fixed between the fixing plate 100 and the valve body 21, and the other end of the sealing member 300 is embedded in the valve core 500; in a specific arrangement, the sealing member 300 may be a soft rubber, one end of the sealing member 300 is disposed between the fixing plate 100 and the valve body 21 and is pressed between the fixing plate 100 and the valve body 21 when the fixing plate 100 and the valve body 21 are fixed by a fastener, the other end of the sealing member 300 is inserted into the valve element 500, and when the valve element 500 is disposed in front, an annular surface of the soft rubber abuts against the valve element 500.

The feed rod 200 has an external thread 210, the external thread 210 matches with the first threaded hole 110, the feed rod 200 is connected to the first threaded hole 110 through the thread action of the external thread 210 and the first threaded hole 110, so that when the feed rod 200 is rotated, the feed rod 200 moves along the axis of the first threaded hole 110 through the thread action of the external thread 210 and the first threaded hole 110, and the feed rod 200 can abut against the valve core 500 when the feed rod 200 moves to the valve core 500, so as to drive the valve core 500 to move therewith.

The valve core 500 is slidably arranged in the first slot hole 22, and the valve core 500 is used for adjusting the water inlet cross-sectional area of the water inlet 23; the outer surface of the valve core 500 is matched with the hole wall of the first slot hole 22, the sectional area of the valve core 500 is equal to the sectional area of the first slot hole 22 along the axial direction perpendicular to the first slot hole 22, or the sectional area of the valve core 500 is slightly smaller than the sectional area of the first slot hole 22, the outer surface of the valve core 500 is matched with the water inlet 23, under the pushing of the feed rod 200, the valve core 500 is gradually righted at the water inlet 23, and when the end surface of the valve core 500 far away from the feed rod 200 moves to the hole bottom side of the water inlet 23 close to the first slot hole 22, the valve core 500 completely blocks the water inlet 23.

The elastic member 400 may abut on a surface of the valve element 500 opposite to the fixed plate 100, the elastic member 400 is stretched when the feed lever 200 moves the valve element 500 toward the bottom of the first slot 22, and the elastic member 400 moves along with the feed lever 200 under the pull of the valve element 500 when the feed lever 200 moves toward the bottom of the slot away from the first slot 22. Alternatively, the resilient member 400 may abut against the surface opposite to the first slot 22, and when the feed lever 200 moves the valve element 500 toward the bottom of the first slot 22, the resilient member 400 is compressed, and when the feed lever 200 moves toward the bottom of the slot away from the first slot 22, the valve element 500 moves along with the feed lever 200 under the urging of the resilient member 400.

In the throttle feeding module 10, the fixing plate 100 is fixed on the valve body 21, one end of the annular sealing member 300 is fixed between the fixing plate 100 and the valve body 21 to seal the fixing plate 100 and the valve body 21, and the other end of the annular sealing member 300 is embedded in the valve core 500 to seal the valve body 21 and the valve core 500, so as to prevent water from overflowing. The feed rod 200 is inserted into the first threaded hole 110 and is threadedly connected with the first threaded hole 110 through the external thread 210, the feed rod 200 is rotated, the feed rod 200 is moved in the first threaded hole 110 along the axial direction thereof by the threaded connection, the feed rod 200 is moved towards the valve body 21 when the feed rod 200 is rotated in the forward direction, the feed rod 200 pushes the valve core 500 abutting against the feed rod to move towards the bottom of the first slot 22 in the first slot 22, the elastic member 400 is deformed, the valve core 500 shields the water inlet 23 so as to reduce the water inlet cross-sectional area of the water inlet 23, the feed rod 200 is moved towards the outside of the valve body 21 when the feed rod 200 is rotated in the reverse direction, the elastic force of the elastic member 400 causes the valve core 500 to move together with the feed rod 200 towards the direction away from the bottom of the first slot 22, the valve core 500 reduces the range of shielding the water inlet 23 so as to increase the water inlet cross-sectional area of the water inlet 23, and therefore, through setting up valve body 21 at waterway system 20, form first slotted hole 22 and water inlet 23 on valve body 21, adjust the restriction area through the relative position of governing valve core 500 and water inlet 23, saved the plastic hose for current throttling assembly, feed module 10 through above-mentioned throttle and can accurately adjust the intake cross sectional area of water inlet 23 to the accurate control restriction area, and sealing performance is better.

In order to facilitate the throttling adjustment, in a preferred embodiment, as shown in fig. 1, fig. 2, fig. 4 and fig. 5, the throttling feeding module 10 further includes a knob 600, the knob 600 covers the outside of the feeding rod 200, a limiting post 610 is formed inside the knob 600, the limiting post 610 is provided with a second slot 611, the second slot 611 opens at an end surface of the limiting post 610, an end of the feeding rod 200 is embedded in the second slot 611, a first hook 620 is formed at one end of the knob 600, the fixing plate 100 is provided with a ring-shaped first slot 130, the first slot 130 is matched with the first hook 620, the first hook 620 is clamped in the first slot 130, and the first hook 620 is rotatable around an axis of the feeding rod 200 in the first slot 130.

In the throttling feeding module 10, the knob 600 is rotated, the first hook 620 of the knob 600 rotates around the axis of the feeding rod 200 in the first slot 130, so that the knob 600 rotates around the axis of the feeding rod 200, and meanwhile, the limit post 610 of the knob 600 rotates around the axis of the feeding rod 200 to drive the feeding rod 200 embedded in the second slot 611 to rotate, so that the feeding rod 200 can rotate conveniently, throttling adjustment is facilitated, and particularly, when a large stroke is fed, the knob 600 ensures that the feeding rod 200 is not easy to collide and interfere with other external structures. When specifically setting up, knob 600 can be the plastic material to the outside sets up skid resistant course and protruding end, so that operating personnel carries out the rotation operation.

To facilitate the installation of the knob 600, as shown in fig. 1, 2, 4 and 5, specifically, the fixing plate 100 includes a housing 140 and an upper cover 150, the upper cover 150 includes an annular top wall 151, a side wall 152 and a second hook 153, the annular top wall 151, the side wall 152 and the second hook 153 are integrally formed, wherein:

the housing 140 is provided with a second threaded hole 120 on the outside thereof for fixing the housing 140 to the valve body 21 by a fastener, the inside of the housing 140 protrudes outward to form a cover box end 141, the cover box end 141 is provided with a plurality of second locking slots 142, the plurality of second locking slots 142 are disposed around the cover box end, the first threaded hole 110 penetrates through the cover box end, and preferably, the cover box end is coaxial with the first threaded hole 110.

One end of the side wall 152 is fixedly connected with the top wall 151, the other end of the side wall 152 is fixed with a second hook 153, the second hook 153 is clamped in the second clamping groove 142 to fix the upper cover 150 on the housing 140, the end surfaces of the top wall 151, the side wall 152 and the cover box end 141 enclose a first clamping groove 130, and the first hook 620 is inserted into the first clamping groove 130 and can slide in the first clamping groove 130.

In the above-described throttle feeding module 10, the fastening member is inserted into the second screw hole 120 and is threadedly engaged with the first screw hole 110 and the second screw hole 120 to fix the housing 140 to the valve body 21, and then the knob 600 is inserted into the upper cover 150, and the first hook 620 is located between the top wall 151 and the second hook 153, and the upper cover 150 is covered on the cover case end 141, and the second hook 153 is inserted into the second hook 142 to fix the upper cover 150 and the housing 140 as one body. Therefore, the knob 600 can be conveniently mounted through the upper cover 150 and the housing 140.

The structural form of the seal 300 has various forms, and more specifically, as shown in fig. 2, 3, 4 and 5, the seal 300 has a first seal segment 310, a second seal segment 320 and a third seal segment 330 which are integrally formed, wherein:

the first sealing section 310 is provided with a through hole, the first sealing section 310 is positioned between the shell 140 and the valve body 21, the fastener passes through the second threaded hole 120, the through hole and the third threaded hole 24 and is in threaded connection with the second threaded hole 120 and the third threaded hole 24, so that the shell 140 is fixed on the valve body 21, and at the moment, the shell 140 and the valve body 21 jointly extrude the first sealing section 310, so that the sealing performance between the shell 140 and the valve body 21 is good; or, a groove 143 is formed in the housing 140, the groove 143 opens on a surface of the housing 140 facing the valve body 21, a thickness of the first sealing section 310 in a natural state is greater than a depth of the groove 143, the first sealing section 310 is located in the groove 143, and the fastening member passes through the second threaded hole 120 and the third threaded hole 24 and is in threaded connection with the second threaded hole 120 and the third threaded hole 24, so that the housing 140 is fixed on the valve body 21, and at this time, the valve body 21 presses the first sealing section 310 in the groove 143.

The second sealing section 320 is bent to form a groove 321, and the groove 321 extends towards the side of the first sealing section 310 away from the third sealing section 330; in a specific arrangement, when the housing 140 and the valve body 21 co-press the first sealing section 310, the second sealing section 320 is tightly attached to the inside of the housing 140, so as to reduce the outside water flow entering the housing 140.

One end of the third sealing section 330 is located on the end surface of the valve core 500, the other end of the third sealing section 330 is inserted into the valve core 500, and the third sealing section 330 is fixedly connected with the valve core 500.

In the throttle feed module 10, the first sealing section 310 is disposed between the fixing plate 100 and the valve body 21, and when the fixing plate 100 and the valve body 21 are fixed by the fastening member, the housing 140 and the valve body 21 press the first sealing section 310 together to seal the fixing plate 100 and the valve body 21, the second sealing section 320 is bent to form the groove 321, and the groove 321 extends toward a side of the first sealing section 310 away from the third sealing section 330, such that the second sealing section 320 is close to the cap box end 141, while the third sealing section 330 is inserted into the valve element 500, and the third sealing section 330 is fixedly connected with the valve element 500 to seal the valve body 21 and the valve element 500 from overflowing, while when moving in the first groove hole 22 of the valve element 500, the second sealing section 320 is deformed such that the sealing element 300 and the valve element 500 move together in the first groove hole 22.

In order to limit the stroke of the feeding rod 200, as shown in fig. 2, 3 and 5, in a preferred embodiment, a baffle 220 is arranged on the outer side of the feeding rod 200, the baffle 220 is arranged on the side of the external thread 210 far away from the valve core 500, the baffle 220 is positioned between the limiting column 610 and the opposite end surface of the fixing plate 100, and the projection of the baffle 220 on the end surface of the limiting column 610 is positioned on the outer side of the second slot hole 611.

In the throttling feeding module 10, the knob 600 is rotated in the forward direction, the limiting post 610 of the knob 600 rotates around the axis of the feeding rod 200 to drive the feeding rod 200 embedded in the second slot 611 to rotate in the forward direction, so that the feeding rod 200 moves towards the inside of the valve body 21, the feeding rod 200 pushes the valve core 500 abutted against the feeding rod to move towards the bottom of the first slot 22 in the first slot 22, the elastic member 400 deforms, the valve core 500 shields the water inlet 23, so that the water inlet cross-sectional area of the water inlet 23 is reduced, when the baffle 220 contacts with the fixing plate 100, the feeding rod 200 cannot move continuously, at this time, the valve core 500 reaches the maximum shielding range, and the water inlet cross-sectional area of the water inlet 23 is the minimum. The knob 600 is rotated reversely, the limiting post 610 of the knob 600 rotates around the axis of the feeding rod 200 to drive the feeding rod 200 embedded in the second slot 611 to rotate reversely, so that the feeding rod 200 moves towards the direction away from the bottom of the first slot 22, the feeding rod 200 pushes the valve core 500 abutting against the feeding rod to move towards the bottom of the first slot 22 in the first slot 22, the valve core 500 moves towards the direction away from the bottom of the first slot 22 along with the feeding rod 200 due to the elastic force of the elastic member 400, the valve core 500 reduces the range of shielding the water inlet 23, so that the water inlet cross-sectional area of the water inlet 23 is increased, when the baffle 220 contacts with the end surface of the limiting post 610, the feeding rod 200 cannot move continuously, at this time, the feeding rod 200 and the valve core 500 reach the maximum outward movement upper limit, and the water inlet cross-sectional area of the water inlet 23 is the maximum. Therefore, the provision of the stopper 220 can limit the stroke of the feed lever 200 and the valve body 500, and prevent wasteful operation and detachment of the feed lever 200 from the first screw hole 110.

In order to facilitate the fixed connection between the valve core 500 and the sealing member 300, as shown in fig. 2, 3 and 5, in a preferred embodiment, the valve core 500 includes a cavity 510 with an opening at one end, a third slot 511 is formed on the cavity 510, a third hook 340 is formed at one end of the sealing member 300, the third hook 340 is embedded in the third slot 511, a support column 520 is formed inside the cavity 510, and the feed rod 200 abuts against the support column 520.

In the throttle feeding module 10, the third locking groove 511 is formed in the cavity 510, the third locking hook 340 is formed at one end of the sealing element 300, and the third locking hook 340 is embedded in the third locking groove 511 through the locking fit between the third locking groove 511 and the third locking hook 340, so that the valve element 500 and the sealing element 300 are fixedly connected. By providing the supporting pillar 520 inside the cavity 510, the feeding rod 200 can abut against the supporting pillar 520, so that the feeding rod 200 and the valve plug 500 can abut against each other more conveniently, and the feeding rod 200 can push the valve plug 500 to move.

To facilitate the feeding rod 200 to abut against the supporting column 520, as shown in fig. 2, 3 and 5, specifically, the supporting column 520 is provided with a first stepped hole 521, a large hole of the first stepped hole 521 opens at an end surface of the supporting column 520, the feeding rod 200 has an abutting section 230, the abutting section 230 has a small end 231 and a large end 232 along an axial direction thereof, an opening area of the small hole of the first stepped hole 521 is larger than a sectional area of the small end 231, and an opening area of the small hole of the first stepped hole 521 is smaller than a sectional area of the large end 232.

In the throttle feed module 10, the first stepped hole 521 is provided at the end of the support column 520, and the opening area of the small hole of the first stepped hole 521 is defined to be larger than the sectional area of the small end 231, so that the feed rod 200 can enter the large hole of the first stepped hole 521 when moving towards the inside of the first slot hole 22, and the small end 231 of the abutting section 230 enters the small hole of the first stepped hole 521; by defining the small hole opening area of the first stepped hole 521 to be smaller than the sectional area of the large end 232, so that the large end 232 of the abutment section 230 is located in the large hole of the first stepped hole 521, the small end 231 of the abutment section 230 can abut in the small hole of the first stepped hole 521, and the feeding rod 200 abuts on the supporting column 520. And when the elastic element 400 can abut against the surface opposite to the first slot 22, when the feed rod 200 moves towards the bottom of the hole far away from the first slot 22, the feed rod 200 still abuts against the support column 520, and the valve core 500 moves along with the feed rod 200 under the pushing of the elastic element 400, so that the feed rod 200 moves along with the valve core 500, and the accuracy of throttling adjustment is ensured.

To ensure that the feed bar 200 better abuts against the support column 520, as shown in fig. 2, 3, and 5, more specifically, the first stepped hole 521 has an arc-shaped first stepped surface 5211 surrounding the axis of the support column 520, and the outer surface of the abutment section 230 has a spherical surface 233, and the spherical surface 233 matches with the first stepped surface 5211.

In the throttle feed module 10, the first step surface 5211 is defined as an arc-shaped surface, and the outer surface of the abutting section 230 has the spherical surface 233 matched with the first step surface 5211, when the feed rod 200 abuts on the support column 520, the spherical surface 233 and the first step surface 5211 are in surface contact, and when the feed rod 200 abuts on the support column 520, the spherical surface 233 and the first step surface 5211 are in abutment, and the surface-to-surface abutment can enable the feed rod 200 to better abut on the support column 520, so that the movement stability of the valve core 500 is improved.

As shown in fig. 2, 3 and 5, in a preferred embodiment, the elastic member 400 is a spring, a connecting hole 522 is formed in the side wall 152 of the supporting column 520 along the radial direction thereof, a fourth locking groove is formed in the fixing plate 100, the spring is sleeved outside the feeding rod 200, one end of the spring is inserted into the connecting hole 522, and the other end of the spring is embedded in the fourth locking groove.

In the throttle feeding module 10, one end of the spring is inserted into the connection hole 522 from the outside of the support column 520, the other end of the spring is embedded in the fourth locking groove, so that the valve element 500 is connected to the fixed plate 100 by the spring, and the valve element 500 can move together with the valve element 500 under the pulling force of the spring. In a specific arrangement, the spring may be disposed not only between the fixed plate 100 and the valve core 500, but also on a side of the cavity 510 away from the support column 520, and then spring-grounded on a surface of the cavity 510 opposite to the first groove hole 22. The elastic member 400 is not limited to a spring, and may be in other structural forms, for example, the elastic member 400 may be an elastic column.

For ease of manufacturing and assembly, a preferred embodiment is to integrally form the sealing member 300 and the valve cartridge 500, so that the throttle feed module 10 has a simple structure, reduces assembly processes, and facilitates installation. In a specific configuration, not only the sealing member 300 and the valve element 500 may be integrally formed, but also the valve body 21, the elastic member 400 and the valve element 500 may be integrally formed, and the integrally forming process may be injection molding. Of course, the valve body 21, the elastic member 400 and the valve plug 500 may also be a split structure, the valve body 21, the elastic member 400 and the valve plug 500 may be assembled after being processed as separate parts, so that the valve body 21, the elastic member 400 and the valve plug 500 may be replaced after a certain part is damaged without being discarded as a whole, and the valve body 21, the elastic member 400 and the valve plug 500 may also be integrated into other structural members of the waterway system 20.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a throttle and feed module for throttle waterway system, waterway system includes the valve body, the opening in the first slotted hole of valve body terminal surface and communicate the water inlet of first slotted hole, its characterized in that, including fixed plate, feed bar, cyclic annular sealing member, elastic component and with the case that the water inlet matches, wherein:

2. The throttle feed module of claim 1, further comprising a knob, wherein the knob covers the outside of the feed rod and is formed with a limiting post therein, the limiting post is formed with a second slot opening on an end surface thereof, an end of the feed rod is embedded in the second slot, one end of the knob is formed with a first hook, the fixing plate is formed with a first annular groove matching with the first hook, and the first hook is clamped in the first groove and can rotate around an axis of the feed rod.

3. The throttle feed module of claim 2, wherein the retaining plate comprises a housing and an upper cover comprising an annular top wall, a side wall, and a second catch, wherein:

4. The throttle feed module of claim 3, wherein the seal has a first seal segment, a second seal segment, and a third seal segment integrally formed therewith, wherein:

5. The throttle feed module of claim 2, wherein a baffle is disposed on an outer side of the feed rod, the baffle is disposed on a side of the external thread away from the valve core and between opposite end surfaces of the limit post and the fixing plate, and a projection of the baffle on the end surface of the limit post is located on an outer side of the second slot hole.

6. The throttle feed module of claim 1, wherein the valve core comprises a cavity with an opening at one end, a third slot is disposed on the cavity, a third hook is formed at one end of the sealing element, the third hook is embedded in the third slot, a support post is formed inside the cavity, and the feed rod abuts against the support post.

7. The throttle feed module of claim 6, wherein the support post is provided with a first stepped hole, a large hole of the first stepped hole opens at an end surface of the support post, the feed rod has an abutting section, the abutting section has a small end and a large end along an axial direction of the abutting section, and an opening area of the small hole of the first stepped hole is larger than a sectional area of the small end and smaller than a sectional area of the large end.

8. The throttle feed module of claim 7, wherein the first stepped bore has an arcuate first stepped surface surrounding an axis of the support post, and the outer surface of the abutment section has a spherical surface that mates with the first stepped surface.

9. The throttle feed module of claim 6, wherein the elastic member is a spring, a connecting hole is formed in the side wall of the supporting column along the radial direction of the supporting column, a fourth clamping groove is formed in the fixing plate, the spring is sleeved outside the feeding rod, one end of the spring is inserted into the connecting hole, and the other end of the spring is embedded in the fourth clamping groove.

10. The throttle feed module of claim 1, wherein the seal and the spool are integrally formed.