CN205101604U - Spool with automatic return to center function - Google Patents

Abstract

The utility model discloses a valve core with automatic centering function, which comprises a shell with a hollow bottom, a lever group and a mounting seat arranged in the shell, wherein the shell is provided with a hollow bottom; the mounting seat cannot rotate relative to the shell, and the top surface of the mounting seat is provided with a reset component; the first end of the lever group penetrates through the mounting seat and is pivoted with a driving block; one surface of the driving block, which is different from the mounting seat, is provided with a movable valve plate and a base which is arranged at the bottom of the shell; and the two surfaces of the fixed valve plate are respectively attached to the base and the movable valve plate in a watertight manner. When the valve core is in the middle section position, the pull rod group is used for opening the flow channel and swinging left/right, the water outlet temperature of the valve core can be changed, the reset component is actuated to force the reset component to accumulate reset energy, and after the pull rod group drives the movable valve plate to interrupt the flow channel in the valve core structure, the reset component can release the pre-accumulated reset energy in real time no matter what angle the pull rod group drives the movable valve plate to interrupt the flow channel, and the pull rod group is brought back to the middle section position of the valve core.

Description

Spool with automatic return to center function

technical field

The utility model relates to a valve core, in particular to an innovative structure with automatic centering function.

Background technique

The dual temperature faucet, which can supply cold water or hot water according to the user's choice, has been an indispensable water supply equipment for kitchens and bathrooms for a long time because of its convenient use and the function of adjusting the outlet water temperature.

The most important structure to achieve the aforementioned selected outlet water temperature is the ceramic water control valve set in the dual temperature faucet. The structural design of the ceramic water control valve has been used by the dual temperature faucet industry. When it is located in the middle position, if the user opens the ceramic water control valve at this position, the state of the water supply is a mixed state of cold and hot water. Although the structural design of the double temperature faucet has been developed for a long time, we have found that there are actually some problems in this structure; It is achieved through the correct operation method of first turning the handle to the water outlet position of full cold water, and then turning it up. Assuming that the user inadvertently or unconsciously (such as children, the elderly, etc.) pulls up the handle of the double warm water faucet in the middle position, it stands to reason that what flows out of it should be warm water with an even mixture of cold and hot water , but there are unstable factors in actual use. For example, if the water pressure of the cold water end is lower than the water pressure of the hot water end, it will actually switch to the hot water mode, which may cause the potential danger of scalding the user. . Furthermore, when the user pulls the handle at the middle position, since the cold and hot water inlet channels are only partially opened, the hot water part may not be able to ignite the gas in the water heater due to insufficient water pressure. Standards, and thus easily lead to the problem of gas leakage; even if the gas can be ignited smoothly, if the user only wants to wash his hands, when the hot water has not flowed out or just flowed out, the user usually has finished washing his hands and turned off the double temperature faucet. It is undoubtedly a waste of energy to keep the heated hot water in the pipeline.

In order to avoid the aforementioned defects, some ceramic valve manufacturers offset the water flow control groove on the movable valve plate to the cold water inlet of the fixed valve plate, so that when the ceramic water control valve is in the middle position, only the cold water inlet can communicate with the water flow. The control slot is connected. However, no matter how complete the structural design of the movable valve plate is, if the previous user or the room staff of the hotel did not move the lever controlling the spool to the middle position, everything would be in vain.

Utility model content

The main purpose of the utility model is to provide a valve core with automatic centering function.

In order to achieve the above object, the utility model adopts the following technical solutions:

A spool with automatic centering function, wherein the spool is an intercooled spool that can only provide cold water in the middle position, and includes a shell with a hollow bottom, a lever set screwed in the shell, and a device The mounting seat in the casing cannot rotate relative to the casing, and a reset assembly is installed on its top surface; the first end of the lever group passes through the mounting seat and is pivotally connected with a driving block, and the first end of the lever group The two ends extend out of the casing, which is convenient for the user to use the lever group to control the swing of the drive block; the side of the drive block different from the mounting seat is equipped with a movable valve plate, one is installed on the base at the bottom of the shell; the other is installed on the base The two sides of the fixed valve plate are attached to the base and the movable valve plate in a watertight manner; when the valve core is in the middle position, use the lever group to open the flow channel and swing to the left/right, except that the valve can be changed. At the same time, the reset component is activated to force the accumulation of reset energy, and when the lever group drives the movable valve plate to block the flow channel in the valve core, no matter what angle the lever group is at to drive the movable valve plate to block the flow channel, All the reset components can release the pre-accumulated reset energy in real time, and bring the trigger group back to the middle position of the spool.

With this innovative and unique design, compared with the previous technology, the utility model can provide the recovery force of the lever group to automatically return to the middle position after blocking the flow channel in the valve core, so that the valve core automatically recovers after each use The effect of the middle position, combined with the valve core structure of the intercooler design, prevents the valve core from being burned or causing gas leakage when the valve core is opened, which is a practical improvement and better industrial economic (utilization) benefit.

Description of drawings

Fig. 1 is the perspective view of the utility model.

Fig. 2 is a three-dimensional exploded view of the utility model.

Fig. 3 is a three-dimensional exploded view of another viewing angle of the utility model.

Fig. 4 is a side view of the utility model after removing the housing.

Fig. 5A is a top view of the utility model at the middle position.

Fig. 5B is a perspective sectional view of the cross section of the utility model located in the middle section.

Fig. 5C is a cross-sectional view of the utility model located in the middle position.

Fig. 6A is a top view of the utility model after swung toward the hot water direction.

Fig. 6B is a perspective sectional view of the cross section of the utility model after it is swung toward the hot water direction.

Fig. 6C is a cross-sectional view of the utility model after it is swung toward the hot water direction.

Fig. 7A is a top view of the utility model after swung toward the cold water direction.

Fig. 7B is a perspective sectional view of the cross section of the utility model after it is swung towards the direction of cold water.

Fig. 7C is a cross-sectional view of the utility model after it swings toward the cold water direction.

detailed description

As shown in Figures 1, 2, 3, and 4, the valve core with automatic centering function of the present invention is suitable for dual-temperature faucets, especially the dual-temperature faucets that can only provide cold water in the middle position, which mainly includes a shell with a hollow bottom The body 10 and the casing 10 are screwed with a lever set 20 and a mounting seat 30 installed in the casing 10. The mounting seat 30 cannot rotate relative to the casing 10, and a reset assembly 34 is installed on its top surface; The first end of the lever set 20 runs through the mounting base 30 and is pivotally connected with a drive block 40 , and the second end of the lever set 20 extends out of the housing 10 , which is convenient for the user to use the lever set 20 to manipulate the drive block 40 to swing; A movable valve plate 50 is installed on the side of the driving block 40 different from the mounting seat 30, and a base 60 is installed on the bottom of the housing 10; a fixed valve plate 70 is installed on the base 60, and the two sides of the fixed valve plate 70 are respectively It is attached to the base 60 and the movable valve plate 50 in a watertight manner. When the spool is in the middle position and uses the lever group 20 to open the flow channel and swing to the left/right, in addition to changing the outlet water temperature of the spool and simultaneously actuating the reset component 34 to force the accumulation of reset energy, and when the lever group 20 is driven After the movable valve plate 50 closes the flow channel in the spool, no matter what angle the lever group 20 drives the movable valve plate 50 to block the flow channel, the reset component 34 can release the reset energy in real time and bring the lever group 20 back to the spool middle position.

A through hole 11 is formed on the top surface of the housing 10 , and a peripheral edge of the through hole 11 partially extends outward to form a fan-shaped escape groove 12 . The inner wall of the housing 10 is also provided with a protrusion 13 .

The lever set 20 includes a rotating seat 21 screwed on the top of the housing 10 and a lever 22 passing through the rotating seat 21 , wherein when the user uses the lever 22 to operate the movable valve plate 50 to swing relative to the fixed valve plate 70 , synchronously drives the rotating seat 21 to rotate relative to the casing 10 . A first end of the trigger rod 22 passes through the mounting base 30 and is pivotally connected to a driving block 40 , and a second end of the trigger rod 22 extends out of the casing 10 . A guiding portion 211 protrudes from the top surface of the rotating base 21 , and the guiding portion 211 is screwed into the through hole 11 of the casing 10 to ensure the concentricity between the casing 10 and the lever set 20 during relative rotation. A limit block 212 is disposed on the periphery of the guide portion 211 , and the limit block 212 is accommodated in the avoidance groove 12 to limit the rotation angle of the lever set 20 relative to the housing 10 . An arc-shaped drive plate 213 and a cylinder 23 are arranged axially and concentrically on the bottom surface of the rotating base 21 , wherein the opposite ends of the drive plate 213 are respectively defined as a first abutting end 214 and a second abutting end 215 . When the lever set 20 rotates relative to the housing 10 , the drive plate 213 is used to link the reset assembly 34 to accumulate reset energy. A block 231 protrudes from the outer wall of the cylinder 23 , and a first protruding portion 232 and a second protruding portion 233 are respectively disposed on two sides of the bottom of the block 231 to form an inverted T-shaped structure.

The mounting base 30 is a disc-shaped structure with a notch 31 formed on its periphery. The protrusion 13 on the inner wall of the housing 10 is accommodated in the notch 31 , so that the mounting base 30 cannot rotate relative to the housing 10 . The top surface of the mounting base 30 is concentrically provided with an arc-shaped socket structure 32 and a mounting structure 33, wherein the cylinder 23 is screwed in the socket structure 32, so as to ensure the relative rotation of the lever set 20 and the mounting base 30. concentricity between. A first notch 321 and a second notch 322 are respectively formed on the bottoms of both sides of the sleeve structure 32 . The first protruding portion 232 and the second protruding portion 233 are selectively accommodated in the first notch 321 and the second notch 322 respectively, so as to limit the rotation angle of the lever set 20 relative to the mounting base 30 . The driving plate 213 is arranged around the installation structure 33, and the two ends of the installation structure 33 are respectively defined as a first limit end 331 and a second limit end 332, wherein the first limit end 331 and the second limit end 332 They respectively correspond to the first abutting end 214 and the second abutting end 215 of the driving plate 213 . In a preferred embodiment of the present utility model, the reset component 34 is a torsion spring set on the installation structure 33, and its two ends are respectively provided with a first clamping end 341 and a second clamping end 342; please refer to As shown in FIGS. 5A to 5C , when the lever set 20 is located in the middle position of the spool structure, the first clamping end 341 of the reset assembly 34 abuts against the first abutting end 214 and the first limiting end 331 respectively, and The second clamping end 342 of the reset component 34 abuts against the second abutting end 215 and the second limiting end 332 respectively.

Through the above-mentioned structural composition design, the operating conditions of the utility model are described as follows: As shown by the arrows in 6B and 6C, the first abutting end 214 of the driving plate 213 will abut against the first clamping end 341 of the reset assembly 34, and when the rotating base 21 rotates relative to the housing 10, the mounting base 30 Cannot rotate relative to the housing 10 , and the second locking end 342 of the reset component 34 is limited by the characteristics of the second limiting end 332 of the installation structure 33 , the reset component 34 is driven to accumulate reset energy. At this time, the spool structure still continues to discharge water. Due to the continuous effect of water pressure, the friction force between the movable valve plate 50 and the fixed valve plate 70 is relatively large. ; When the lever group 20 resets and closes the flow path between the movable valve plate 50 and the fixed valve plate 70, the water pressure acting on the movable valve plate 50 and the fixed valve plate 70 disappears instantly, causing the movable valve plate 50 to be connected to the fixed valve plate 70. The friction force between the valve plates 70 is relatively reduced, so that the reset component 34 can use its accumulated reset energy to reversely push the trigger group 20 through the drive plate 213 to reset and link the movable valve plate 50 so that it automatically returns to the middle position , to overcome the absence of the existing spool. As shown in FIGS. 7A to 7C , the operation mode shown therein is only in the opposite direction to the above-mentioned operation mode, and the function of providing automatic reset is exactly the same, so it will not be described again.

Efficacy Description:

The valve core with automatic centering function of the utility model is mainly through the innovative and unique structural form and technical characteristics of the drive plate, installation structure and reset assembly, so that the utility model can be compared with the existing structure mentioned in [background technology]. Provide the recovery force of the lever set to automatically return to the middle position after blocking the flow channel in the spool, so as to achieve the effect of the spool automatically returning to the middle position after each use. After matching the spool with intercooling design, the spool can be avoided Open the practical advancement of instant burns or gas leakage.

Those disclosed in the above-mentioned embodiments are used to describe the utility model in detail, and although the text is described through specific terms, it should not limit the patent scope of the utility model of the utility model; The spirit and principles of the new type are then changed and modified to achieve equivalent purposes, and these changes and modifications should all be covered in the scope defined by the scope of the patent application as described later.

The above is only a specific embodiment of the present utility model, but the scope of protection of the present utility model is not limited thereto. Anyone familiar with the technical field can easily think of changes or changes within the technical scope disclosed by the utility model Replacement should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be based on the protection scope of the claims.

Claims (6)

1. A spool with automatic centering function, characterized in that the spool is used for matching with double temperature water faucets; the spool includes a shell with a hollow bottom, a lever set screwed in the shell, and a device The mounting seat in the casing cannot rotate relative to the casing, and a reset assembly is installed on its top surface; the first end of the lever group passes through the mounting seat and is pivotally connected with a driving block, and the first end of the lever group The two ends extend out of the casing, which is convenient for the user to use the lever set to control the swing of the driving block; the lever set includes a rotating seat screwed on the top of the casing, and an arc-shaped driving plate is arranged on the bottom surface of the rotating seat axially and concentrically. The two different ends of the driving board are respectively defined as the first abutting end and the second abutting end, and the first abutting end and the second abutting end are respectively abutted against the different two ends of the reset assembly, therefore, when the trigger When the rod group reciprocates relative to the mounting seat, the first abutting end and the second abutting end respectively drive the reset assembly to accumulate reset energy; the side of the driving block different from the mounting seat is equipped with a movable valve plate, and a movable valve plate is installed on the housing A base at the bottom; a fixed valve plate installed on the base, and the two sides of the fixed valve plate are respectively attached to the base and the movable valve plate in a watertight manner; When the valve core is in the middle position, use the lever group to open the flow channel and swing to the left/right, in addition to changing the outlet water temperature of the valve core and simultaneously actuating the reset component to force the accumulation of reset energy, and when the lever group drives the movable valve plate After blocking the flow channel in the spool, no matter what angle the lever group drives the movable valve plate to block the flow channel, the reset component can be released in real time and reset to bring the lever group back to the middle position of the spool. 2. The spool with automatic centering function according to claim 1, characterized in that a cylinder is arranged axially concentrically on the bottom surface of the rotating seat, and a stopper is protruded from the outer wall of the cylinder, and the two sides of the bottom of the stopper are respectively A first protruding portion and a second protruding portion are provided to form an inverted T-shaped structure; the top surface of the mounting seat is concentrically provided with an arc-shaped socket structure, and the bottoms on both sides of the socket structure are respectively formed with a A first slot and a second slot, the first protrusion and the second protrusion are selectively accommodated in the first slot and the second slot respectively, so as to limit the rotation of the lever set relative to the mounting base angle. 3. The spool with automatic centering function according to claim 2, characterized in that the top surface of the installation seat is concentrically provided with an arc-shaped installation structure, and the two ends with different installation structures are respectively defined as the first limit end and the second limiting end, wherein the first limiting end and the second limiting end correspond to the first abutting end and the second abutting end of the drive plate respectively; the reset assembly is a set of torsion spring, and its two ends are respectively provided with a first clamping end and a second clamping end; when the lever group is located in the middle position of the valve core, the first clamping end of the reset component respectively abuts against the first abutment end and the first position-limiting end, and the second clamping end of the reset component abuts against the second abutting end and the second position-limiting end respectively. 4. The valve core with automatic centering function according to claim 1, 2 or 3, characterized in that a protrusion is provided on the inner wall of the housing; the mounting seat is a disc-shaped structure, and a The slot is missing, and the protrusion on the inner wall of the housing is accommodated in the slot, so that the mounting seat cannot rotate relative to the housing. 5. The valve core with automatic centering function according to claim 1, 2 or 3, characterized in that a perforation is formed on the top surface of the casing, and the periphery of the perforation partially extends outward to form a fan-shaped avoidance groove; The top surface of the swivel seat is protrudingly provided with a guide part, which is screwed into the perforation of the casing, so as to ensure the concentricity between the casing and the lever group in relative rotation; the periphery of the guide part is provided with a limit block, and the limit block is accommodated in the avoidance groove, so as to limit the rotation angle of the trigger group relative to the housing. 6. The valve core with automatic centering function according to claim 4, characterized in that a perforation is formed on the top surface of the housing, and the peripheral part of the perforation extends outwards to form a fan-shaped avoidance groove; the top of the rotating seat There is a guiding part on the convex surface, and the guiding part is screwed in the perforation of the shell, so as to ensure the concentricity between the shell and the lever group in relative rotation; a limit block is set on the periphery of the guiding part, The block is accommodated in the escape groove, so as to limit the rotation angle of the trigger rod set relative to the casing.