CN216420534U - One-way valve and mode switching structure - Google Patents

Abstract

The utility model relates to a check valve and mode switch structure belongs to daily apparatus field. A check valve comprises a sealing block for sealing a through hole, wherein a hole structure which is vertically arranged is arranged in the middle of the sealing block, a sealing cover is arranged at the port of the hole structure, and the sealing cover is movably arranged so as to be used for movably sealing the hole structure; and the step is formed at the port of the hole structure, is matched with the closing cover in shape and is used for providing limit for the closing of the closing cover. Through a structural design with mode switching function for traditional straw itself has had the function that the pressure boost was washed, can wash remaining residual impurity in the cup, and need not disassemble back inside clearance with the help of the brush again.

Description

One-way valve and mode switching structure

Technical Field

The utility model relates to an everyday object the field, specifically, relate to a check valve and mode switch structure.

Background

Infants or young children prefer to use the straw. However, when drinking milk or other beverages with a straw, the milk or sugar stain is easily left in the straw, and is easily rotten and deteriorated, causing the straw to smell and inconvenient to clean. The current common cleaning means are as follows: the small-diameter brush attached to the purchase of the suction pipe is inserted into the suction pipe and is scraped and cleaned back and forth in running water, but the brush needs to be cleaned regularly, so that the whole cleaning process is troublesome.

In the existing design, an invention patent named as an easily cleaned environment-friendly straw provides an innovative straw design method, and the application number of the innovative straw design method is CN 201810894328.0. An easy-to-clean environmental protection straw, comprising: a cup body, an axial caulking groove is arranged from the cup edge surface to the bottom surface; and the arc-shaped sheet is embedded into the caulking groove from top to bottom in the axial direction, so that the arc-shaped sheet is embedded in the inner peripheral wall of the cup body in a separable manner and forms a hollow structure, a reusable straw structure is further embedded in the cup body, and the arc-shaped sheet of the environment-friendly straw can be axially drawn out of the cup body, so that the environment-friendly straw has the effect of conveniently cleaning the inside. The invention has unique requirements on the position, the size and the material of the straw, and is not easy to match with the mainstream straw structure in the market.

The design of a portable cup cleaner is published in the paper 'shallow analysis of handheld ultrasonic cup cleaner' in journal 2019.21(05) of China New communications, and the abstract of the design is as follows: the handheld ultrasonic cup cleaner is researched, the characteristics of ultrasonic waves, the working principle, the characteristics and the advantages of the handheld ultrasonic cup cleaner are introduced, and influence factors of the cleaning effect of the handheld ultrasonic cup cleaner are analyzed. But this scheme can have better cleaning performance to the straw inner wall with the help of ultrasonic wave, but its cost is high, does not utilize market application and popularization.

SUMMERY OF THE UTILITY MODEL

1. Problems to be solved

Aiming at the problem that the existing design technology can not be matched with widely adopted rubber straws to carry out simple and convenient cleaning operation under the application of various water cups, people need a new design scheme to improve the daily cleaning work of common water cups for children and juveniles.

2. Technical scheme

In order to solve the above problems, the utility model adopts the following technical proposal.

A check valve comprises a sealing block for sealing a through hole, wherein a hole structure which is vertically arranged is arranged in the middle of the sealing block, a sealing cover is arranged at the port of the hole structure, and the sealing cover is movably arranged so as to be used for movably sealing the hole structure; and the step is formed at the port of the hole structure, is matched with the closing cover in shape and is used for providing limit for the closing of the closing cover.

Furthermore, the step is an annular step arranged around the edge of the port of the hole structure;

the closing cover is arranged on one side of the step in a hinged mode, and the closing cover can be turned over and covered in the step.

Further, a magnet is embedded in the edge part of the closing cover; correspondingly, the step is embedded with another magnetic body to enable the sealing cover to be tightly attracted to the step.

A mode switching structure incorporating a one-way valve as claimed in any one of the preceding claims.

Furthermore, the buffer part is a hollow sealed shell, and the upper part and the lower part are respectively provided with an upper through hole and a lower through hole; the number of the sealing blocks is two, namely an upper sealing block and a lower sealing block; the upper sealing block and the lower sealing block are consistent in structure, are correspondingly arranged at the upper through hole and the lower through hole respectively and are used for plugging the upper through hole and the lower through hole.

Furthermore, elastic tensioning parts are arranged among the upper sealing block, the lower sealing block and the cache part; the elastic tensioning part enables the upper sealing block, the lower sealing block and the cache part to keep a close fit normal state.

Furthermore, the upper sealing block and the lower sealing block are respectively connected with an upper snap ring and a lower snap ring through flexible hauling ropes; the upper sealing block and the lower sealing block can be switched from a normally closed state to a normally open state by pulling the upper clamping ring and the lower clamping ring.

3. Advantageous effects

Compared with the prior art, the technical scheme has the beneficial effects that: through a structural design with mode switching function for traditional straw itself has had the function that the pressure boost was washed, can wash remaining residual impurity in the cup, and need not disassemble back inside clearance with the help of the brush again. The mode switching structure of the technical scheme can adjust the function of the straw into a normally open structure or a one-way pressurizing structure, cleaning can be conveniently realized through the control part without disassembling, and the mode switching structure has interesting taste for users.

The magnetic attraction closing cover can form simple and easy-to-use threshold setting for the check valve, improve water flow impact force and further flush and discharge adhered impurities which are difficult to clear.

Drawings

FIG. 1 is a schematic view of a usage state;

FIG. 2 is a perspective view of the cover;

FIG. 3 is a perspective view showing a use state of the mode switching part;

fig. 4 is a perspective view of the mode switching part in an exploded state;

FIG. 5 is a schematic view of the operating handle and the switching structure;

FIG. 6 is a schematic diagram illustrating an internal structure of the switch structure;

fig. 7 is a schematic view of the structure of the upward flow check valve.

In the figure:

1. a cover body; 1a, an avoidance part; 12. an upward flow check valve; 12a, a closing cover; 12b, a magnet; 12c, a step; 13. a flexible hauling cable;

2. a buffer unit; 2a, an upper through hole; 2b, lower through holes;

3. an upper suction pipe;

4. a lower suction pipe;

5. a mode switching unit; 51. a switching structure; 51a, a clamping hook; 51b, a positioning rod; 52. a control handle;

6. sealing the cover; 6a, a positioning hook;

7. sealing the block; 7a, an upper snap ring;

8. a lower sealing block; 8a, a lower snap ring;

9. an elastic tension section;

10. a fixing plate;

11. an elastic member.

Detailed Description

In order to make the utility model realize that the technical means, the creation characteristics, the achievement purpose and the efficacy are easy to be understood, the utility model is further explained by combining the embodiment.

As shown in fig. 1 to 5, a check valve and a mode switching structure having a cover 1. The upper part and the side part of the cover body 1 are respectively provided with an avoidance part 1 a. The two escape portions are used to pass through the upper straw 3 and the control handle 52, respectively. The middle part of the cover body 1 is provided with a buffer storage part 2. The buffer part 2 is used as a carrier of a mode switching structure, and the middle part is a cavity. The cavity is for storing liquid and is sealed by a cover 6. The buffer memory part 2 is integrally cylindrical, and an upper through hole 2a and a lower through hole 2b are respectively formed at the upper part and the lower part of the buffer memory part. The outer part of the upper through hole 2a is hermetically connected with the upper suction pipe 3. The lower through hole 2b is hermetically connected with the lower suction pipe 4. In use, the lower straw 4 sucks the liquid in the cup into the buffer part 2 through the lower through hole 2b, and then discharges the liquid through the upper through hole 2a and the upper straw 3.

When drinking, only the above mode is adopted. In this mode, the upper and lower suction pipes 3 and 4 are connected. However, the beverage residue remains on the inner wall of the suction pipe, and for this reason, a pressure increasing structure is required in the buffer part 2 to flush and carry the residue out by means of a high water pressure. The specific adoption mode is as follows:

(1) a mode switching unit 5 is provided in the buffer unit 2. The mode switching unit 5 includes a switching mechanism 51 and a lever 52 connected to the switching mechanism 51. The control handle 52 is a round rod, one end of which sequentially penetrates through the other avoiding part 1a and the buffer part 2 of the cover body 1, extends into the buffer part 2, is connected with the switching structure 51 positioned in the buffer part 2, and is used for controlling the switching structure 51 to act, realizing mode switching and changing the communication state of the upper suction pipe 3 and the lower suction pipe 4. The other end of the control handle 52 is a round end and is positioned outside the cover body 1 so as to be convenient for the operator to operate by hand. The operation handle 52 penetrates the buffer part 2, and a seal member such as a packing is provided between the operation handle 52 and the buffer part 2.

(2) The upper through hole 2a and the lower through hole 2b are movably plugged by an upper sealing block 7 and a lower sealing block 8 respectively, namely the upper sealing block 7 and the lower sealing block 8 are used for flexibly plugging and opening the two through holes. Elastic tensioning parts 9 are arranged between the upper sealing block 7, the lower sealing block 8 and the inner wall of the buffer part 2. The elastic tensioning part 9 keeps the upper sealing block 7, the lower sealing block 8 and the buffer part 2 in a close fit normal state. Upward circulation check valves 12 are correspondingly arranged in the upper sealing block 7 and the lower sealing block 8 respectively. The upward flow check valve 12 is used to realize one-way opening and closing of the upper through hole 2a and the lower through hole 2 b. Furthermore, the upper sealing block 7 and the lower sealing block 8 are respectively and correspondingly connected with a linkage piece, the linkage piece can be one of structures such as a hook, a ring sleeve and a snap ring, in the embodiment, the preferred linkage piece is the snap ring, wherein the linkage piece is connected with the upper sealing block 7 and is an upper snap ring 7 a; connected with the lower sealing block 8 is a lower snap ring 8 a. When the connection mode is selected, the flexible traction rope 13 or food-grade rubber material is preferably adopted to realize the corresponding connection of the clamping ring and the sealing block. When the mechanism is operated, the linkage piece drives the upper sealing block 7 and the lower sealing block 8 to change the sealing state of the upper through hole 2a and the lower through hole 2 b.

(3) The outer surface of the switch structure 51 is provided with a hook 51 a. The two hooks 51a are located on two opposite sides of the outer surface of the switch structure 51. The hooks 51a are used for movably hanging the upper snap ring 7a and the lower snap ring 8a, respectively. Furthermore, the upper snap ring 7a and the lower snap ring 8a are both limited by the fixing plate 10. The fixing plates 10 are two in number and are respectively used for limiting the upper clamping ring 7a and the lower clamping ring 8 a. The fixing plate 10 is a circular arc plate structure, and the center of curvature thereof is located on the axis of the cushioning portion 2. The upper snap ring 7a and the lower snap ring 8a are also both arc-shaped frame structures, and the curvature centers thereof are also located on the axis of the cushioning portion 2. The fixing plate 10 is parallel to the control handle 52, one end of the fixing plate 10 is fixedly connected to the inner side wall of the buffer part 2, the other end is suspended, and the suspended end is provided with a limiting hole 10a for the upper snap ring 7a and the lower snap ring 8a to penetrate through. When the sealing device is used, the two flexible hauling ropes 13 respectively penetrate through the corresponding limiting holes 10a, and two ends of each flexible hauling rope 13 are respectively connected with the upper clamping ring 7 a/the lower clamping ring 8a and the upper sealing block 7/the lower sealing block 8.

During operation, the switching mechanism 51 is driven to slide axially in the buffer portion 2 by pushing and pulling the control handle 52. When the operation handle 52 is pulled outward, the operation handle 52 in the buffer part 2 is pulled out, so that a negative pressure is generated in the buffer part 2, at this time, the upward flow check valve 12 installed in the upper seal block 7 is closed, the upward flow check valve 12 installed in the lower seal block 8 is opened, and the liquid in the cup is sucked upward into the buffer part 2 by the lower suction pipe 4. When the operation handle 52 is pushed inward, the operation handle 52 in the buffer part 2 takes up more space, so that higher pressure is generated in the buffer part 2, at this time, the upward flow check valve 12 installed in the lower sealing block 8 is closed, the upward flow check valve 12 installed in the upper sealing block 7 is opened, and the liquid in the cup is squeezed out from the upper suction pipe 3. In the process, the water flow is accelerated, the pressure is increased, and the residue in the whole suction pipe channel has a relatively obvious scouring effect, so that the fruit puree, fruit particles, milk stains and other foreign matters in the suction pipe channel can be quickly torn off.

Referring to fig. 6-7, in order to better achieve the above effects, considering that the conventional check valve has the problems of complex structure, high cost, high failure rate and the like, the structure abandons the common check valve in the existing industry, and instead, a check valve with a certain pressure threshold is newly designed, and specifically the structure is as follows:

taking the lower seal block 8 as an example, the lower seal block 8 is provided at its middle portion with a hole structure communicating with the lower through hole 2b, and an upward flow check valve 12 is installed at the hole structure there. The upward flow check valve 12 includes a closing cover 12a, and a magnet 12b is embedded in an edge portion of the closing cover 12 a. Correspondingly, another magnetic pole is arranged at the hole structure of the lower sealing block 7 and is used for attracting the magnet at the edge part of the closing cover 12 a. In order to make the closing cover 12a and the hole structure more closely attached, a step 12c is provided at the opening of the hole structure, and the other pole magnet is embedded at the step 12 c. The magnets are evenly distributed along the circumference of the closure cap 12a and the step structure. One side of the closure cap 12a is hinged at the opening of the aperture arrangement. In operation, the closure cap 12a is normally fittingly covered in the stepped configuration and attracted by the magnetic field to maintain a predetermined pre-pressure, i.e., a predetermined threshold is set for opening the closure cap 12 a. When a negative pressure structure is formed in the buffer part 2 and the negative pressure is larger than the pressure in the cup below the closing cap 12a, the closing cap 12a is suddenly pushed open. At this time, the liquid is squirted into the buffer part 2 to form a short-time rapid impact water flow, thereby more effectively washing the impurities in the water pipe passage.

The structure of the upper sealing block 7 corresponds to that of the lower sealing block 8, and the difference lies in that: an upward flow check valve 12 in the upper block 7 and its closure cap 12a are provided in the upper part of the upper block 7 in the space between the upper block 7 and the upper straw 3. In operation, when the operating lever 52 is pushed inward, a higher pressure is formed in the buffer part 2, the lower closing lid 12a is closed, and the water pressure in the buffer part 2 pushes the upper closing lid 12a open, so that the impurities in the upper suction pipe 3 are flushed with a burst-type high pressure.

The self-cleaning apparatus structure, operation process and principle are described in detail above, and when the buffer section 2 is kept in a normally open state, the following operations are required:

(1) a positioning hook 6a is arranged on the sealing cover 6, and the positioning hook 6a is an L-shaped semi-surrounding frame or a semicircular hook structure. A positioning rod 51b for engaging with the positioning hook 6a is provided at one end of the switching mechanism 51 near the cover 6. The positioning rod 51b can be rotated to be clamped into the positioning hook 6a or rotated out of the positioning hook 6a by rotating the control handle 52, so that the rotation angle of the switching structure 51 is limited by the positioning hook 6 a. This arrangement is provided for switching the liquid flow state in the buffer section 2, that is, the on-off state of the upper straw 3 and the lower straw 4, by the rotation switching mechanism 51.

(2) The setting of the structure size needs to meet the following conditions: when the positioning rod 51b and the positioning hook 6a are at positions to be mutually buckled, the hook 51a, the upper snap ring 7a and the lower snap ring 8a are also at corresponding matching positions, namely, the hook 51a, the upper snap ring 7a and the lower snap ring 8a are respectively buckled. When the positioning rod 51b and the positioning hook 6a rotate relatively to complete buckling, the clamping hook 51a pulls the upper clamping ring 7a and the lower clamping ring 8a away from the original positions respectively, further pulls the upper sealing block 7 and the lower sealing block 8 away from the corresponding plugging positions, and releases plugging of the corresponding upper through hole 2a and the lower through hole 2b, so that two one-way valves are avoided, and the upper suction pipe 3 and the lower suction pipe 4 are communicated. In this state, the user can drink the beverage normally, and the passage is in a normally open state with the holding of the positioning hook 6 a. When cleaning is required, the lever 52 is rotated in the reverse direction, that is, the detent lever 51b is disengaged from the detent hook 6 a. After the upper sealing block 7 and the lower sealing block 8 lack the draw of the upper snap ring 7a and the lower snap ring 8a by the snap hook 51a, the upper sealing block 7 and the lower sealing block 8 are reset by the elastic tensioning part 9 between the inner walls of the buffer part 2 and the upper through hole 2a and the lower through hole 2b are plugged again.

In order to realize that the switching structure 51 and the hook 51a attached thereto can be automatically separated from the upper snap ring 7a and the lower snap ring 8a after the positioning rod 51b is separated from the positioning hook 6a, an elastic member 11 is further provided between the switching structure 51 and the cover 6, and in the present embodiment, a compression spring embedded in the switching structure 51 is preferred. The elastic member 11 keeps the switch structure 51 and the cover 6 in a normally separated state, and can provide a tension force for the engagement state of the positioning rod 51b and the positioning hook 6a, so as to prevent the two from being easily disengaged from each other.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, but rather that the principles of the invention are described in the above embodiments and the description, and that various changes and modifications may be made without departing from the spirit and scope of the invention, and these changes and modifications are intended to be included within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (7)

1. A one-way valve characterized by: comprises that

The sealing block is used for sealing the through hole, a hole structure which is arranged in the vertical direction is arranged in the middle of the sealing block, a sealing cover (12a) is arranged at the port of the hole structure, and the sealing cover (12a) is movably arranged so as to be used for movably sealing the hole structure;

a step (12c) formed at the port of the hole structure, shaped to fit the closure cap (12a), and adapted to provide a stop for the closure of the closure cap (12 a).

2. A check valve as in claim 1, wherein:

the step (12c) is an annular step arranged around the edge of the port of the hole structure;

the closing cover (12a) is arranged on one side of the step (12c) in a hinged mode, and the closing cover (12a) can be covered in the step (12c) in a turnover mode.

3. A one-way valve according to claim 1, wherein:

a magnet (12b) is embedded in the edge part of the closing cover (12 a); correspondingly, another pole magnet is embedded at the step (12c) so that the closing cover (12a) is tightly attracted at the step (12 c).

4. A mode switching structure characterized by: use of a one-way valve according to any of the preceding claims.

5. A mode switching architecture as claimed in claim 4, wherein: comprises that

The buffer part (2) is a hollow sealed shell, and the upper part and the lower part of the buffer part are respectively provided with an upper through hole (2a) and a lower through hole (2 b);

the number of the sealing blocks is two, namely an upper sealing block (7) and a lower sealing block (8); the upper sealing block (7) and the lower sealing block (8) are consistent in structure, are correspondingly arranged at the upper through hole (2a) and the lower through hole (2b) respectively, and are used for plugging the upper through hole (2a) and the lower through hole (2 b).

6. A mode switching architecture as claimed in claim 5, wherein:

elastic tensioning parts (9) are arranged among the upper sealing block (7), the lower sealing block (8) and the buffer part (2); the elastic tensioning part (9) enables the upper sealing block (7), the lower sealing block (8) and the buffer part (2) to keep a close-fitting normal state.

7. A mode switching architecture as claimed in claim 5, wherein:

the upper sealing block (7) and the lower sealing block (8) are respectively connected with an upper snap ring (7a) and a lower snap ring (8a) through flexible hauling ropes (13); the upper sealing block (7) and the lower sealing block (8) can be switched from a normally closed state to a normally open state by pulling the upper clamping ring (7a) and the lower clamping ring (8 a).

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