CN220153643U - Passive automatic control autonomous early warning type water meter and water meter quantifying component - Google Patents

Abstract

The utility model belongs to the technical field of water meters, and particularly relates to a passive self-control autonomous early warning type water meter and a water meter quantifying component. The circumference of the positioning wheel assembly is provided with a closing plate notch; the closing plate assembly comprises a closing state and an opening state, the closing plate assembly comprises a positioning clamping block, the positioning clamping block is matched with the closing plate notch for use, the output end of the transmission assembly is connected with the limiting rotating shaft through a transmission structure, the transmission structure enables the transmission assembly to be a power source for water supply and rotation of the limiting rotating shaft, the positioning wheel assembly is fixed on the limiting rotating shaft, the positioning wheel assembly comprises a transition structure, and the transition structure is used for enabling the positioning clamping block to smoothly transition from the closing plate notch to the periphery of the positioning wheel assembly. The utility model can smoothly transition the positioning clamping block from the closing plate notch to the periphery of the positioning wheel assembly without adopting other mechanisms, and can prevent the positioning clamping block from being damaged and protect the positioning clamping block.

Description

Passive automatic control autonomous early warning type water meter and water meter quantifying component

Technical Field

The utility model belongs to the technical field of water meters, and particularly relates to a passive self-control autonomous early warning type water meter and a water meter quantifying component.

Background

According to the requirements of GB/T50331-2002 'urban domestic Water Standard', one-user one-meter system is implemented, which brings the phenomenon of difficult meter reading and charging to water supply departments. To solve such a problem, it is necessary to quantitatively control the unit of use liquid. At present, an electromagnetic quantitative control device is used in the market, but the device needs to be maintained by a power supply, and stops working under the condition of lack of the power supply, so that inconvenience is brought to the domestic liquid, and other interference problems exist.

In the patent number ZL200420087258.1 of the utility model of a liquid flow quantitative control device, a mechanical liquid flow quantitative control device is provided, the device realizes quantitative control of liquid flow, but the technology has the defect that when a preset quantitative liquid metering scale is reached, the device is suddenly closed and cannot prompt a user in advance, so that inconvenience is brought to the user, and therefore, in the utility model of the patent number CN101294632B, a water meter capable of early warning is provided, a closing plate of the device is provided as a large closing plate and a small closing plate, when the large closing plate is closed, small holes can still pass a certain flow, and when the large closing plate is used, if the flow is found to be obviously reduced, the prompt can be obtained, the device is indicated to be closed, and the early warning function is realized.

However, in the above liquid flow quantitative control device, when the closing plate is closed and then is tightened for the second time, when water is required to be supplied again, the closing plate and the positioning clamp on the small closing plate are propped against the outer circular surface of the positioning wheel to open the closing plate, and the operation is troublesome.

Disclosure of Invention

The utility model aims at solving the technical problems, and provides a passive self-control autonomous early warning type water meter, which achieves the effects that a positioning fixture block can be smoothly transited from a closing plate notch to the periphery of a positioning wheel assembly without adopting other mechanisms, the positioning fixture block can be prevented from being damaged, and the positioning fixture block is protected.

In view of the above, the utility model provides a passive self-control autonomous early warning type water meter, which comprises a shell, wherein a counting assembly and a water meter quantifying assembly are arranged in the shell, the water meter quantifying assembly comprises a quantifying seat, and the quantifying seat is provided with:

the power input source of the transmission assembly is a counting assembly in the shell;

the limiting rotating shaft penetrates through the quantitative seat and can circumferentially rotate around the axis of the limiting rotating shaft, the rotating process of the limiting rotating shaft comprises two working states of tightening rotation and water supply rotation, and the rotating directions of the limiting rotating shaft are opposite when the limiting rotating shaft is in the tightening rotation and the water supply rotation;

the quantitative spring always has a movement tendency of rotating the limiting rotating shaft in the rotating direction of the water supply rotation;

the circumference of the positioning wheel assembly is provided with a closing plate notch;

the closing plate assembly is rotationally arranged on the shell, a water outlet is formed in the shell, the closing plate assembly is used for closing or opening the water outlet, the closing plate assembly comprises a closing state and an opening state, the closing plate assembly comprises a positioning clamping block, the positioning clamping block is matched with the closing plate notch for use, the positioning clamping block abuts against the periphery of the positioning wheel assembly in the opening state, and the positioning clamping block is limited in the closing plate notch in the closing state;

the output end of the transmission assembly is connected with the limiting rotating shaft through a transmission structure, the transmission structure enables the transmission assembly to be a power source for supplying water to the limiting rotating shaft for rotating, the positioning wheel assembly is fixed on the limiting rotating shaft and comprises a transition structure, and the transition structure is used for enabling the positioning clamping blocks to smoothly transition from the cut-out of the closing plate to the periphery of the positioning wheel assembly.

In this technical scheme, when carrying out the confession ration setting, clockwise rotatory spacing pivot through outside simulation batcher, make the locating wheel subassembly rotate, then transition structure makes the positioning fixture block from closing the board incision smooth transition to locating wheel subassembly periphery, then the delivery port is opened, quantitative spring is tightened, when beginning the water supply, the counting assembly can drive transmission subassembly motion, make transmission subassembly make spacing pivot water supply whirl through transmission structure, anticlockwise direction rotation, until closing the board incision and rotate to the positioning fixture block and make the positioning fixture block by spacing in closing the board incision, then closing the board subassembly and rotate and change to the closure state and make the delivery port stop the play, realize quantitative water supply, set up transition structure and can not need adopt other mechanism just can make the positioning fixture block follow closing board incision smooth transition to locating wheel subassembly periphery, can prevent that the positioning fixture block from being destroyed, the protection positioning fixture block.

Further, the positioning wheel assembly includes:

the inner disc is fixedly connected with the limiting rotating shaft, comprises a transition arc section which is sunk inwards from the outer periphery of the inner disc, and is provided with a lug on one side;

the outer disc is provided with a closed plate notch which is arranged on the periphery of the outer disc and sinks towards the direction of the center of the outer disc, the bottom of the outer disc is provided with a chute, and the chute is in an arc shape and is concentric with the outer disc;

the convex blocks are arranged in the sliding grooves in a sliding way, the periphery of the outer disc is arranged on the periphery of the inner disc in a surrounding way, and the transition circular arc sections and the closing plate cuts can be opposite or staggered by the circumferential rotation connection of the inner disc and the outer disc;

the transition structure comprises the inner disc, the outer disc and a return spring, wherein the return spring is arranged in the chute, when the transition circular arc section is opposite to the closing plate notch, one end of the lug is attached to the end wall of the chute, and the return spring always has a movement trend of enabling the lug to be attached to the end wall of the chute.

In the technical scheme, when a normal water supply outlet is opened, the transition arc section is opposite to the closing plate notch, when the transition arc section is opposite to the closing plate notch, the end point of the transition arc section is attached to the outer disc wall and far away from the closing plate notch, the inner disc and the outer disc synchronously rotate anticlockwise together with the limit rotating shaft, when the water outlet is closed, the transition arc section is also opposite to the closing plate notch, only in the process that the water outlet is gradually opened, namely, the positioning clamping block is smoothly transited from the closing plate notch to the periphery of the positioning wheel assembly, the transition arc section and the closing plate notch are gradually staggered in the circumferential direction, because the limit rotating shaft rotates clockwise at this moment to perform quantitative setting of liquid supply, the positioning wheel assembly also synchronously rotates clockwise, but the positioning clamping block is positioned in the closing plate notch, therefore, the inner disc is continuously and clockwise rotated by the limit rotating shaft, the positioning clamping block is extruded by the transition arc section to enable the closing plate assembly to gradually open the water outlet, and simultaneously, the outer disc is connected with the inner disc through the convex block and the sliding chute, the positioning block is in sliding connection with the inner disc, when the positioning block is in the transition arc section and the inner disc is in the opposite to the inner disc, the reset arc is enabled to rotate relative to the end wall, the end wall is enabled to be opposite to the inner disc, the end wall is enabled to rotate clockwise, the end wall is enabled to be opposite to the end wall to the outer disc is enabled to rotate clockwise, and the end of the positioning block is enabled to rotate clockwise, and the end plate is enabled to reset to rotate relative to the end plate, and the end plate is enabled to reset to the end plate is enabled to rotate, and the end-stop plate is opposite to the end plate cut, and the end plate cut-stop plate is rotated, and the positioning block is rotated to rotate and the positioning block and the positioning opening and rotates, and the positioning opening and the positioning block is made and rotates through the opening and rotates through the closing plate and, when water is supplied, namely, the inner disc rotates anticlockwise, the outer disc and the inner disc always keep synchronous anticlockwise rotation. Compared with a single positioning wheel with an arc in a cam shape, the structure can rapidly close the water outlet and smoothly open the water outlet, so that the positioning fixture block can be prevented from being damaged, and the positioning fixture block is protected.

Further, the closure plate assembly includes:

the large closing plate is provided with the positioning clamping block;

the small closing plate is also provided with the positioning clamping block;

wherein, little shut-off plate links to each other with big shut-off plate is coaxial, is equipped with little water hole on the big shut-off plate.

Further, the transmission assembly comprises an input wheel set, a transition wheel set and a combined ratchet wheel, the input wheel set is meshed with an output gear in the counting assembly, the input wheel set is meshed with the transition wheel set, the transition wheel set is meshed with the combined ratchet wheel, the ratchet wheel is meshed with the closing gear in a coaxial connection mode, the transmission structure comprises a rotating shaft gear, and the rotating shaft gear is meshed with the closing gear.

Further, the rotating shaft gear is an incomplete gear, an angle formed by connecting the two ends of the toothless section of the rotating shaft gear with the axis of the limiting rotating shaft is a first angle A, an angle formed by connecting the two ends of the cut-out of the closing plate with the axis of the limiting rotating shaft is a second angle B, a third angle C is formed by connecting the two ends of the positioning clamping block of the large closing plate with the axis of the limiting rotating shaft, a third angle D is formed by connecting the two ends of the positioning clamping block of the small closing plate with the axis of the limiting rotating shaft, wherein B+C < B+C+D is formed by connecting the two ends of the positioning clamping block of the small closing plate with the axis of the limiting rotating shaft, and the quantitative spring is used for resetting the limiting rotating shaft in the rotating direction of water supply rotation;

further, the combined ratchet comprises a unidirectional inner gear and a unidirectional outer gear and a three-jaw ratchet, and the three-jaw ratchet is connected with the inner teeth of the unidirectional inner gear and the unidirectional outer gear to form the combined ratchet.

In the technical scheme, when the liquid supply quantity is set, the limiting rotating shaft is rotated clockwise through an external simulated quantitative device, the rotating shaft gear rotates to enable the toothed section of the rotating shaft gear to be meshed with the closing gear, only the three-jaw ratchet rotates clockwise due to the action of the combined ratchet, other transmission components do not rotate, the quantitative spring is gradually tightened, the closing plate component gradually opens the water outlet, after the liquid supply quantity is set, the quantitative spring cannot rotate with the limiting rotating shaft due to the meshing force of the closing gear and the rotating shaft gear and the meshing force of the transmission component, when water supply begins, the counting component can input the rotation of the wheel set, the axial rotation sequentially enables the limiting rotating shaft to rotate anticlockwise through the input wheel set, the transition wheel set, the combined ratchet, the closing gear and the rotating shaft gear, and when a positioning clamping block of the large closing plate is clamped into a closing plate notch, the large closing plate closes the water outlet, but the large closing plate is provided with a small water passing hole, so that the water outlet flow is instantaneously reduced, a user is reminded that the water quantity is about to run out, the water quantity should be recharged at an early point, a positioning clamping block of the small closing plate is also abutted against the periphery of the outer disc, when the limiting rotating shaft continuously rotates clockwise, because B+C < A+C+D, before the positioning clamping block of the small closing plate is clamped into the closing plate notch, the toothless section of the rotating shaft gear rotates to be opposite to the closing gear, namely, the rotating shaft gear is out of engagement with the closing gear, the rotating force of the quantitative spring can instantaneously drive the limiting rotating shaft to continuously rotate anticlockwise for resetting, the positioning clamping block of the small closing plate also instantaneously falls into the closing plate notch, the small closing plate is covered on the closing plate, water is not discharged at the moment, and the water quantity is used up. The closing of the large closing plate is controlled according to the outer disc of the positioning wheel assembly, the precision is not high, the closing of the small closing plate is controlled according to the gear parameters of the rotating shaft gear and the gear parameters of the transmission assembly, the water quantity is controlled with high precision, and the quantitative precision of the water meter can be ensured.

Furthermore, the quantitative spring is in a convolution shape, one end of the quantitative spring is connected with the limiting rotating shaft, and the other end of the quantitative spring is connected with the shell.

Further, the application method of the passive self-control autonomous early warning type water meter comprises the following steps:

step S1, setting liquid supply amount, rotating a limiting rotating shaft clockwise through an external analog quantitative device, and enabling a closing plate assembly to be switched to an open state in a clockwise rotating process of the limiting rotating shaft through a positioning wheel assembly and a transition structure so as to enable a water outlet to be opened;

step S2, after water supply is convoluted, the counting assembly enables the limiting rotating shaft to supply water to be convoluted through driving the transmission assembly, the outer disc of the positioning wheel assembly controls the closing of the large closing plate, the large closing plate is closed firstly, the water outlet flow is instantly reduced, a user is reminded that the water quantity is about to run out, the rotating shaft gear and the gear parameters of the transmission assembly control the closing of the small closing plate, the small closing plate is driven to be closed by the resilience force of the quantitative spring, the small closing plate is closed after the large closing plate is closed, and the small closing plate is closed to stop water supply.

The beneficial effects of the utility model are as follows:

1. the setting transition structure can enable the positioning fixture block to smoothly transition to the periphery of the positioning wheel assembly from the cut of the closing plate without adopting other mechanisms, so that the positioning fixture block can be prevented from being damaged, the positioning fixture block is protected, the structure and a single positioning wheel with an arc in a cam shape can rapidly close the water outlet, the water outlet can be smoothly opened, the positioning fixture block can be prevented from being damaged, and the positioning fixture block is protected.

2. The closing of the large closing plate is controlled according to the outer disc of the positioning wheel assembly, the precision is not high, the closing of the small closing plate is controlled according to the gear parameters of the rotating shaft gear and the gear parameters of the transmission assembly, the water quantity is controlled with high precision, and the quantitative precision of the water meter can be ensured.

Drawings

FIG. 1 is an overall view of a water meter;

FIG. 2 is an exploded view of the water meter;

FIG. 3 is a perspective view of a water meter dosing assembly;

FIG. 4 is a partial cross-sectional view of a water meter dosing assembly;

FIG. 5 is a schematic view of a positioning wheel assembly and a closure plate assembly;

FIG. 6 is a perspective view of the positioning wheel assembly;

FIG. 7 is an exploded view of the positioning wheel assembly;

FIG. 8 is a perspective view of the inner disc of the positioning wheel assembly;

FIG. 9 is a perspective view of the outer disc of the positioning wheel assembly;

FIG. 10 is a perspective view of the large closure panel closed and the small closure panel not yet closed;

FIG. 11 is a partial enlarged view A of FIG. 4;

fig. 12 is a top view of a portion of the structure of fig. 3.

The label in the figure is:

1. a housing; 2. a counting assembly; 3. a water meter quantifying component; 4. a quantitative seat; 5. a transmission assembly; 6. a limiting rotating shaft; 7. a quantitative spring; 8. a positioning wheel assembly; 9. a closure panel assembly; 10. closing the plate incision; 11. a water outlet; 12. positioning a clamping block; 13. an inner disk; 14. an outer disk; 15. a transition arc segment; 16. a bump; 17. a chute; 18. a return spring; 19. a large closure panel; 20. a small closing plate; 21. a small water passing hole; 22. an input wheel set; 23. a transition wheel set; 24. a combined ratchet wheel; 25. unidirectional inner and outer gears; 27. closing the gear; 28. a rotating shaft gear.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly described below with reference to the drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which are obtained by a person skilled in the art based on the embodiments of the present utility model, fall within the scope of protection of the present utility model.

In the description of the present utility model, it is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments in accordance with the present utility model. For ease of description, the dimensions of the various features shown in the drawings are not drawn to actual scale. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

It should be noted that the terms "first," "second," and the like in the description and in the claims are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present utility model may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type, and are not limited to the number of objects, such as the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.

It should be noted that, in the description of the present utility model, the terms like "front, rear, upper, lower, left, right", "horizontal, vertical, horizontal", and "top, bottom", etc. generally refer to the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and these orientation terms do not indicate and imply that the apparatus or elements referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus should not be construed as limiting the scope of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

It should be noted that, in the present utility model, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present utility model is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

Example 1:

as shown in fig. 1-5, a passive self-control autonomous early warning type water meter comprises a machine shell 1, wherein a counting assembly 2 and a water meter quantifying assembly 3 are arranged in the machine shell 1, the water meter quantifying assembly 3 comprises a quantifying seat 4, and a transmission assembly 5, a limiting rotating shaft 6, a quantifying spring 7, a positioning wheel assembly 8 and a closing plate assembly 9 are arranged on the quantifying seat 4. The power input source of the transmission assembly 5 is a counting assembly 2 in the shell 1; the limiting rotating shaft 6 penetrates through the quantitative seat 4 and can circumferentially rotate around the axis of the limiting rotating shaft 4, the rotating process of the limiting rotating shaft 6 comprises two working states of tightening rotation and water supply rotation, and the rotating directions of the limiting rotating shaft 6 are opposite when the limiting rotating shaft rotates in the tightening rotation and the water supply rotation; the quantitative spring 7 is in a rotary shape, one end of the quantitative spring 7 is connected with the limit rotating shaft 6, the other end of the quantitative spring 7 is connected with the machine shell 1, and the quantitative spring 7 always has a movement trend of enabling the limit rotating shaft 6 to rotate in the rotating direction of water supply rotary; the circumference of the positioning wheel assembly 8 is provided with a closing plate notch 10; the closing plate assembly 9 is rotatably arranged on the casing 1, a water outlet 11 is arranged on the casing 1, the closing plate assembly 9 is used for closing or opening the water outlet 11, the closing plate assembly 9 comprises a closing state and an opening state, the closing plate assembly 9 comprises a positioning clamping block 12, the positioning clamping block 12 is matched with the closing plate notch 10 for use, the positioning clamping block 12 abuts against the periphery of the positioning wheel assembly 8 in the opening state, and the positioning clamping block 12 is limited in the closing plate notch 10 in the closing state; the output end of the transmission assembly 5 is connected with the limiting rotating shaft 6 through a transmission structure, the transmission structure enables the transmission assembly 5 to be a power source for water supply and rotation of the limiting rotating shaft 6, the positioning wheel assembly 8 is fixed on the limiting rotating shaft 6, the positioning wheel assembly 8 comprises a transition structure, and the transition structure is used for enabling the positioning clamping blocks 12 to smoothly transition from the closing plate notch 10 to the periphery of the positioning wheel assembly 8.

When the quantitative setting of liquid supply is carried out, the limiting rotating shaft 6 is rotated clockwise through an external simulated quantitative device, the positioning wheel assembly 8 is rotated, the positioning clamping block 12 is enabled to be in smooth transition from the closing plate notch 10 to the periphery of the positioning wheel assembly 8 through the transition structure, the water outlet 11 is opened, the quantitative spring 7 is fastened, when water supply begins, the counting assembly 2 can drive the transmission assembly 5 to move, the transmission assembly 5 enables the limiting rotating shaft 6 to rotate in the anticlockwise direction through the transmission structure, the positioning clamping block 12 is enabled to be limited in the closing plate notch 10 until the closing plate notch 10 is rotated to the positioning clamping block 12, the closing plate assembly 9 is rotated to be in a closed state, the water outlet 11 is stopped from water outlet, quantitative water supply is realized, the positioning clamping block 12 can be enabled to be in smooth transition from the closing plate notch 10 to the periphery of the positioning wheel assembly 8 without adopting other mechanisms through the transition structure, the positioning clamping block 12 can be prevented from being damaged, and the positioning clamping block 12 is protected.

Example 2:

as shown in fig. 5-9, the positioning wheel assembly 8 includes an inner disk 13 and an outer disk 14. The inner disc 13 is fixedly connected with the limit rotating shaft 6, the inner disc 13 comprises a transition arc section 15 which is sunk inwards from the periphery of the inner disc 13, and a lug 16 is arranged on one side of the inner disc 13; the plate closing notch 10 is arranged on the periphery of the outer disc 14 and is sunk towards the circle center direction of the outer disc 14, the disc bottom of the outer disc 14 is provided with a chute 17, and the chute 17 is arc-shaped and concentric with the outer disc 14; the convex blocks 16 are arranged in the sliding grooves 17 in a sliding way, the periphery of the outer disc 14 is arranged on the periphery of the inner disc 13 in a surrounding way, and the transition circular arc sections 15 and the closing plate notch 10 can be opposite or staggered by the circumferential rotation connection of the inner disc 13 and the outer disc 14; the transition structure comprises the inner disc 13 and the outer disc 14, and further comprises a return spring 18, wherein the return spring 18 is arranged in the chute 17, when the transition circular arc section 15 is opposite to the closing plate notch 10, one end of the lug 16 is attached to the end wall of the chute 17, and the return spring 18 always has a movement trend that the lug 16 is attached to the end wall of the chute 17.

When the water outlet 11 is opened, the transition circular arc section 15 is opposite to the closing plate notch 10, when the transition circular arc section 15 is opposite to the closing plate notch 10, the end point of the transition circular arc section 15 is attached to the wall of the outer disc 14 and is far away from the closing plate notch 10, the inner disc 13 and the outer disc 14 synchronously rotate anticlockwise together with the limit rotating shaft 6, when the water outlet 11 is closed, the transition circular arc section 15 is also opposite to the closing plate notch 10, only when the water outlet 11 is gradually opened, namely, the positioning clamping block 12 is smoothly transited from the closing plate notch 10 to the periphery of the positioning wheel assembly 8, the transition circular arc section 15 and the closing plate notch 10 are gradually staggered in the circumferential direction, because the limit rotating shaft 6 is synchronously rotated clockwise for quantitative setting of liquid supply at the moment, the positioning wheel assembly 8 is synchronously rotated clockwise, but the positioning clamping block 12 is positioned in the closing plate notch 10, therefore, there is a force for preventing the positioning wheel assembly 8 from rotating clockwise, the inner disk 13 is fixedly connected with the limiting rotating shaft 6, so that the inner disk 13 can continue to rotate clockwise, the positioning clamping block 12 is extruded by the transitional arc section 15 to enable the closing plate assembly 9 to gradually open the water outlet 11, meanwhile, the outer disk 14 is in sliding connection with the inner disk 13 through the convex block 16 and the sliding groove 17, so that the outer disk 14 and the inner disk 13 can rotate relatively when being subjected to the resistance of the positioning clamping block 12, the transition circular arc section 15 and the closing plate notch 10 are staggered, when the closing plate notch 10 rotates to be flush with the end point of the transition circular arc section 15, the positioning clamping block 12 can smoothly switch from being abutted against the periphery of the outer disc 14 in the closing plate notch 10, then the resistance of the positioning clamping block 12 to the outer disc 14 disappears, the reset spring 18 can reset the outer disc 14 to enable the transition circular arc section 15 to be opposite to the closing plate notch 10 again, and one end of the lug 16 is abutted against the end wall of the chute 17, therefore, the outer disk 14 and the inner disk 13 are rotated relatively only when the inner disk 13 rotates clockwise, and the outer disk 14 and the inner disk 13 always rotate counterclockwise in synchronization when water is supplied, that is, when the inner disk 13 rotates counterclockwise. Compared with a single positioning wheel with an arc in a cam shape, the structure can rapidly close the water outlet 11 and smoothly open the water outlet 11, so that the positioning clamping block 12 can be prevented from being damaged, and the positioning clamping block 12 is protected.

Example 3:

as shown in fig. 4 and 10, the closure panel assembly 9 includes a large closure panel 19 and a small closure panel 20. The large closing plate 19 is provided with the positioning clamping block 12; the small closing plate 20 is also provided with the positioning clamping block 12; the small closing plate 20 is coaxially connected with the large closing plate 19, the large closing plate 19 is provided with a small water passing hole 21, and the closing plate assembly 9 further comprises a rebound spring which enables the closing plate assembly 9 to always have a movement trend of covering the water outlet 11.

As shown in fig. 4, 11 and 12, the transmission assembly 5 includes an input wheel set 22, a transition wheel set 23 and a combined ratchet 24, the combined ratchet 24 includes a unidirectional inner and outer gear 25 and a three-jaw ratchet, the three-jaw ratchet is engaged with the inner teeth of the unidirectional inner and outer gear 25 to form the combined ratchet 24, and the structure of the combined ratchet 24 is described in patent number CN101294632 a. The input wheel set 22 is meshed with an output gear in the counting assembly 2, the input wheel set 22 is meshed with a transition wheel set 23, the transition wheel set 23 is meshed with a combined ratchet wheel 24, a closing gear 27 is coaxially connected with the ratchet wheel in a meshed mode, and the transmission structure comprises a rotating shaft gear 28, and the rotating shaft gear 28 is meshed with the closing gear 27.

As shown in fig. 11-12, the rotating shaft gear 28 is an incomplete gear, the connection line between the two ends of the toothless section of the rotating shaft gear 28 and the axis of the limiting rotating shaft 6 forms an angle a, the connection line between the two ends of the closing plate notch 10 and the axis of the limiting rotating shaft 6 forms an angle B, the connection line between the two ends of the positioning clamping block 12 of the large closing plate 19 and the axis of the limiting rotating shaft 6 forms a third angle C, the connection line between the two ends of the positioning clamping block 12 of the small closing plate 20 and the axis of the limiting rotating shaft 6 forms a third angle D, wherein b+c < a < b+c+d, and the quantitative spring 7 is used for resetting the limiting rotating shaft 6 in the rotating direction of water supply rotation.

When the quantitative setting of liquid supply is carried out, the limiting rotating shaft 6 is rotated clockwise through an external simulated quantitative device, the rotating shaft gear 28 rotates to enable the toothed section of the rotating shaft gear 28 to be meshed with the closing gear 27, only the three-jaw ratchet wheel rotates clockwise due to the action of the combined ratchet wheel 24, the rest of the transmission components 5 do not rotate, the quantitative spring 7 is gradually tightened, the closing plate component 9 gradually opens the water outlet 11, after the quantitative setting of liquid supply is finished, the quantitative spring 7 does not rotate along with the limiting rotating shaft 6 due to the meshing force of the closing gear 27 and the rotating shaft gear 28 and the meshing force of the transmission components 5, when water supply begins, the counting component 2 can rotate through the input wheel set 22, the transition wheel set 23, the combined ratchet wheel 24, the closing gear 27 and the rotating shaft gear 28, the limiting rotating shaft 6 rotates anticlockwise sequentially, and when the positioning clamping block 12 of the large closing plate 19 is clamped into the closing plate notch 10, as shown in fig. 10, the large closing plate 19 closes the water outlet 11, but the large closing plate 19 is still provided with the small water passing hole 21, so that the water outlet flow is instantaneously reduced, the user is reminded that the water is about to run out, the water should be recharged early, at this time, the positioning clamping block 12 of the small closing plate 20 still abuts against the periphery of the outer disc 14, when the limiting rotating shaft 6 continues to rotate clockwise, because b+c < a+c+d, before the positioning clamping block 12 of the small closing plate 20 is clamped into the closing plate notch 10, the toothless section of the rotating shaft gear 28 rotates to be opposite to the closing gear 27, that is, the rotating shaft gear 28 and the closing gear 27 lose engagement, at this time, the revolving force of the quantitative spring 7 continuously rotates and resets fast counterclockwise with the limiting rotating shaft 6, the positioning clamping block 12 of the small closing plate 20 also drops into the closing plate notch 10 instantaneously, the small closing plate 20 is covered on the beating closing plate, at this time, no water is discharged at all, i.e., the water amount is used up. The closing of the large closing plate 19 is controlled according to the outer disc 14 of the positioning wheel assembly 8, the precision is not high, the closing of the small closing plate 20 is controlled according to the gear parameters of the rotating shaft gear 28 and the gear parameters of the transmission assembly 5, the water quantity is controlled with high precision, and the quantitative precision of the water meter can be ensured.

The application method of the passive self-control autonomous early warning type water meter comprises the following steps:

step S1, setting liquid supply amount, rotating a limiting rotating shaft 6 clockwise through an external analog quantitative device, and enabling a closing plate assembly 9 to be smoothly switched to an open state through a positioning wheel assembly 8 and a transition structure in the clockwise rotating process of the limiting rotating shaft 6 so as to enable a water outlet 11 to be opened;

step S2, after water supply is rotated, the counting assembly 2 rotates the limit rotating shaft 6 through driving the transmission assembly 5, the outer disc 14 of the positioning wheel assembly 8 controls the large closing plate 19 to be closed, the large closing plate 19 is closed firstly, the water outlet flow is instantly reduced, a user is reminded that the water quantity is about to be used up, the rotating shaft gear 28 and the gear parameters of the transmission assembly 5 control the small closing plate 20 to be closed, the small closing plate 20 is driven to be closed by the resilience force of the quantitative spring 7, the small closing plate 20 is closed after the large closing plate 19 is closed, and the small closing plate 20 is closed to stop water supply.

The embodiments of the present utility model have been described above with reference to the accompanying drawings, in which the embodiments of the present utility model and features of the embodiments may be combined with each other without conflict, the present utility model is not limited to the above-described embodiments, which are merely illustrative, not restrictive, of the present utility model, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present utility model and the scope of the claims, which are protected by the present utility model.

Claims (7)

1. The utility model provides a water gauge ration subassembly, includes ration seat (4), is provided with on the ration seat (4):

the power input source of the transmission assembly (5) is a counting assembly (2) in the shell (1);

the limiting rotating shaft (6) penetrates through the quantitative seat (4) and can circumferentially rotate around the axis of the quantitative seat, the rotating process of the limiting rotating shaft (6) comprises two working states of tightening rotation and water supply rotation, and the rotating directions of the limiting rotating shaft (6) are opposite when the tightening rotation and the water supply rotation are carried out;

a quantitative spring (7), wherein the quantitative spring (7) always has a movement trend of enabling the limit rotating shaft (6) to rotate towards the rotation direction of the water supply rotation;

the positioning wheel assembly (8), the circumference of the positioning wheel assembly (8) is provided with a closing plate notch (10);

the water meter comprises a closing plate assembly (9), wherein the closing plate assembly (9) is rotatably arranged on a shell (1) of the water meter, a water outlet (11) is formed in the shell (1), the closing plate assembly (9) is used for closing or opening the water outlet (11), the closing plate assembly (9) comprises a closing state and an opening state, the closing plate assembly (9) comprises a positioning clamping block (12), the positioning clamping block (12) is matched with a closing plate notch (10) for use, the positioning clamping block (12) abuts against the periphery of the positioning wheel assembly (8) in the opening state, and the positioning clamping block (12) is limited in the closing plate notch (10) in the closing state;

the device comprises a transmission assembly (5), a positioning wheel assembly (8) and a positioning wheel assembly (8), wherein the output end of the transmission assembly (5) is connected with a limiting rotating shaft (6) through a transmission structure, the transmission structure enables the transmission assembly (5) to be a power source for water supply and rotation of the limiting rotating shaft (6), the positioning wheel assembly (8) is fixed on the limiting rotating shaft (6), the positioning wheel assembly (8) comprises a transition structure, and the transition structure is used for enabling a positioning clamping block (12) to be transited to the periphery of the positioning wheel assembly (8) from a closing plate notch (10) in a smooth manner.

2. A water meter dosing assembly as claimed in claim 1, wherein said positioning wheel assembly (8) comprises:

the inner disc (13), the inner disc (13) is fixedly connected with the limit rotating shaft (6), the inner disc (13) comprises a transition arc section (15) which is sunk inwards from the outer circumference of the inner disc (13), and a lug (16) is arranged on one side of the inner disc (13);

the outer disc (14), the said closing plate cut (10) is offered on the periphery of the above-mentioned outer disc (14) and subsided to the direction of centre of a circle of the outer disc (14), the disc bottom of the outer disc (14) has slide grooves (17), the slide groove (17) is arcuate and concentric with outer disc (14);

the lug (16) is arranged in the chute (17) in a sliding way, the periphery of the outer disc (14) is arranged on the periphery of the inner disc (13), and the inner disc (13) and the outer disc (14) are connected in a circumferential rotation way so that the transition arc section (15) and the closing plate notch (10) are opposite or staggered;

the transition structure comprises the inner disc (13) and the outer disc (14), and further comprises a reset spring (18), wherein the reset spring (18) is arranged in the chute (17), when the transition circular arc section (15) is opposite to the closing plate notch (10), one end of the lug (16) is attached to the end wall of the chute (17), and the reset spring (18) always has a movement trend that the lug (16) is attached to the end wall of the chute (17).

3. A water meter dosing assembly according to claim 2, wherein the closure plate assembly (9) comprises:

a large closing plate (19), wherein the large closing plate (19) is provided with the positioning clamping block (12);

a small closing plate (20), wherein the small closing plate (20) is also provided with the positioning clamping block (12);

wherein, little shut-off plate (20) and big shut-off plate (19) coaxial coupling, be equipped with little water hole (21) on the big shut-off plate (19).

4. A water meter dosing assembly according to claim 1, wherein the transmission assembly (5) comprises an input wheel set (22), a transition wheel set (23) and a combined ratchet wheel (24), the input wheel set (22) is meshed with an output gear in the counting assembly (2), the input wheel set (22) is meshed with the transition wheel set (23), the transition wheel set (23) is meshed with the combined ratchet wheel (24), a closing gear (27) is coaxially connected with the ratchet wheel meshing, the transmission structure comprises a rotating shaft gear (28), and the rotating shaft gear (28) is meshed with the closing gear (27).

5. The water meter quantifying component according to claim 4, wherein the rotating shaft gear (28) is an incomplete gear, an angle formed by connecting two ends of a toothless section of the rotating shaft gear (28) with an axle center of the limiting rotating shaft (6) is a first angle a, an angle formed by connecting two ends of the closing plate notch (10) with the axle center of the limiting rotating shaft (6) is a second angle B, two ends of the large closing plate (19) positioning clamping block (12) are connected with the axle center of the limiting rotating shaft (6) to form a third angle C, two ends of the small closing plate (20) positioning clamping block (12) are connected with the axle center of the limiting rotating shaft (6) to form a third angle D, wherein b+c < a+b+c+d, and the quantifying spring (7) is used for resetting the limiting rotating shaft (6) to rotate in a water supply rotating direction.

6. A water meter dosing assembly according to claim 1, characterized in that the dosing spring (7) is of a convolute shape, one end of the dosing spring (7) is connected with the limit rotating shaft (6), and the other end is connected with the casing (1).

7. A passive self-control autonomous early warning type water meter, which is characterized by comprising a machine shell (1), wherein a counting assembly (2) and a water meter quantifying assembly as set forth in any one of claims 1-6 are arranged in the machine shell (1).