Medium transfer structure and spraying device

Abstract

The utility model discloses a medium transfer structure and a spraying device, the medium transfer structure comprises an elastic member, a first extraction assembly and a second extraction assembly, the first extraction assembly and the second extraction assembly are in mutual telescopic connection, the first extraction assembly is provided with a transfer channel communicated with a movable channel, and the second extraction assembly comprises an extrusion piece sleeved in the movable channel. One end of the elastic component is fixed relative to the first extraction assembly, the other end of the elastic component is fixed relative to the end, away from the first extraction assembly, of the second extraction assembly, and when the second extraction assembly extends relative to the first extraction assembly, acting force for driving the second extraction assembly to move towards the release position can be provided. According to the medium transfer structure, when the second extraction assembly is released, the acting force of the elastic component can be used for driving the second extraction assembly and the extrusion piece to move towards the release position, automatic reset of the extrusion piece is achieved, the extrusion piece pushes the medium in the containing cavity to be discharged to the outside through the transfer channel, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the field of spray toys, in particular to a medium transfer structure and a spray device. Background Art

[0002] Spray toys include toy water guns, bullet guns, soft bullet guns, shotguns, air guns and other toys currently on the market. The prior art discloses an invention patent for a push-pull children's toy water gun with an LED light (publication number: CN105157476A), which includes a piston cylinder and a piston rod sleeved in the piston cylinder. The inner end of the piston rod is connected to the piston. One end of the piston cylinder is provided with a water inlet and outlet. When pumping water, the piston cylinder is held by one hand, and the piston rod handle is pulled by the other hand to suck the external water into the piston cylinder. When firing, the piston cylinder is held by one hand, and the piston rod handle and the piston are pushed to reset by the other hand to discharge the water in the piston cylinder to the outside. The spray toys in this technical solution require manual reset of the piston, which is inconvenient to use. Summary of the invention

[0003] In view of the deficiencies in the prior art, the utility model provides a medium transfer structure, comprising an elastic component, and a first extraction component and a second extraction component which are telescopically connected to each other, wherein an active channel is arranged inside the first extraction component, and a transfer channel connected to the active channel is arranged on the first extraction component, and the second extraction component comprises an extrusion component which is sleeved in the active channel, and a accommodating cavity for accommodating the medium is formed between the extrusion component and the transfer channel, and the second extraction component can telescopically move between an extraction position which is extended relative to the first extraction component and a release position which is shortened relative to the first extraction component; one end of the elastic component is relatively fixed to the first extraction component, and the other end is relatively fixed to an end of the second extraction component which is far from the first extraction component, and can provide a force to drive the second extraction component to move toward the release position when the second extraction component is extended relative to the first extraction component.

[0004] Preferably, the first extraction component includes a first extraction piece and a first end piece connected to one end of the first extraction piece away from the second extraction component, the second extraction component includes a second extraction piece and a second end piece connected to one end of the second extraction piece away from the first extraction component, the second extraction piece is sleeved in the movable channel and telescopically connected to the first extraction piece, the extrusion piece is connected to one end of the second extraction piece close to the first extraction component, one end of the elastic member is relatively fixed to the first end piece, and the other end is relatively fixed to the second end piece.

[0005] Preferably, the first end piece includes a first end side plate arranged around the outer circumference of the first extraction piece, the second end piece includes a second end side plate arranged around the outer circumference of the second extraction piece, and the elastic member is configured as a sleeve structure sleeved outside the first extraction component and the second extraction component, with one end relatively fixed to the first end side plate and the other end relatively fixed to the second end side plate.

[0006] Preferably, a first mounting portion is provided on the first end side plate, a second mounting portion is provided on the second end side plate, one end of the elastic member is mounted on the first mounting portion via a first fastener, and the other end is mounted on the second mounting portion via a second fastener.

[0007] Preferably, the first mounting portion is provided with a concave ring structure 1 formed by being recessed in the circumferential direction of the first end side plate, and the second mounting portion is provided with a concave ring structure 2 formed by being recessed in the circumferential direction of the second end side plate, one end of the elastic member is tightly connected to the outside of the first mounting portion by a first fastener, and the first fastener is limited in the concave ring structure 1, and the other end is tightly connected to the outside of the second mounting portion by a second fastener, and the second fastener is limited in the concave ring structure 2.

[0008] Preferably, the first mounting portion is arranged along the circumferential direction of the first end side plate, and the outer peripheral side surface of the first mounting portion protrudes from the outer peripheral side surface of the first extraction member to support the inner wall of the elastic member away from the outer wall of the first extraction member; and / or, the second mounting portion is arranged along the circumferential direction of the second end side plate, and the outer peripheral side surface of the second mounting portion protrudes from the outer peripheral side surface of the second extraction member to support the inner wall of the elastic member away from the outer wall of the second extraction member.

[0009] Preferably, the first end piece also includes a first end panel connected to the first end side plate, the first end panel is combined with or abutted against an end surface of the first extraction member away from the second extraction component, and the transfer channel is opened on the first end panel; and / or, the second end piece also includes a second end panel connected to the second end side plate, the second end panel is combined with or abutted against an end surface of the second extraction member away from the first extraction component.

[0010] Preferably, the extrusion member includes a docking portion, and an extrusion plate connected to the docking portion at one end close to the first extraction component, the docking portion is cooperatively connected or integrally formed with the end of the second extraction member close to the first extraction component, and the outer peripheral shape of the extrusion plate is adapted to the cross-sectional shape of the movable channel.

[0011] Preferably, a docking groove is recessed on the second extraction member from its end face close to the first extraction component, and the docking portion is fitted in the docking groove to connect with the second extraction member. The outer peripheral edge of the extrusion plate is arranged on the outer peripheral side of the protruding docking portion to form a step surface on the side of the extrusion plate away from the first extraction component for combining with or abutting against an end face of the second extraction member close to the first extraction component.

[0012] Preferably, the extrusion piece is made of a hard material, and the outer peripheral side of the extrusion plate is arranged in close contact with the inner wall of the movable channel or with a gap therebetween.

[0013] Preferably, the elastic component is configured as an elastic sealing sleeve structure which is sleeved outside the first extraction component and the second extraction component, and one end is relatively fixed and sealed to the first extraction component, and the other end is relatively fixed and sealed to an end of the second extraction component away from the first extraction component.

[0014] The utility model also provides a spraying device, comprising the above-mentioned medium transfer structure and a nozzle structure arranged on the first extraction component away from one end of the second extraction component, the nozzle structure is provided with a spraying port, and the transfer channel is arranged between the spraying port and the accommodating cavity.

[0015] Preferably, a connecting structure is also arranged between the nozzle structure and the first extraction component, and a connecting cavity is formed between the nozzle structure, the connecting structure and the first extraction component. A loading port is opened on the connecting structure, and the loading port and the spray port are respectively connected to the connecting cavity. One end of the transfer channel is connected to the accommodating cavity, and the other end is connected to the connecting cavity to form an extraction chamber.

[0016] Preferably, a blocking structure and a one-way valve are provided in the connecting cavity, the feeding port is arranged on the side of the connecting structure, the blocking structure is connected to the first extraction component and / or the connecting structure, the one-way valve includes a first valve covering the inner side of the feeding port, and a second valve covering the inner side of the spray port, the second valve is provided with a valve port, the blocking structure covers the valve port, when the second extraction component is extended relative to the first extraction component, the first valve is deformed toward the connecting cavity under the negative pressure in the extraction chamber to open the feeding port, when the second extraction component is shortened relative to the first extraction component, the second valve is deformed toward the spray port under the pressure in the extraction chamber to open the valve port.

[0017] Preferably, the one-way valve also includes a valve body fixed relative to the connecting cavity, the first valve is configured as an annular structure arranged along the inner wall of the connecting structure and extending from the valve body toward the first extraction component, the second valve is configured as a conical ring structure arranged along the inner side of the spray port and extending from the valve body toward the blocking structure, and the inner diameter of the second valve gradually decreases from its end close to the spray port to its end close to the blocking structure.

[0018] Preferably, the blocking structure is connected to the first extraction assembly, and a plurality of transfer channels are provided, and the plurality of transfer channels are respectively arranged at intervals along the circumferential direction of the blocking structure.

[0019] Preferably, it also includes a shell structure, a cache structure, a transmission structure, and a trigger structure, the shell structure includes a fuselage component, a first handle component connected to the rear portion of the fuselage component, and a second handle component movably connected to the outside of the fuselage component, the medium transfer structure is arranged in the fuselage component along the length direction of the fuselage component, and the nozzle structure and / or the connecting structure and / or the end of the first extraction component away from the second extraction component is relatively fixed to the front portion of the fuselage component through the first positioning component, and the end of the second extraction component away from the first extraction component can be locked or separated from the rear portion of the fuselage component through the second positioning component when the second extraction component is in the extraction position, and the fuselage structure A shooting port corresponding to the spray port is provided at the front end of the component; a cache structure is arranged on the shell structure, and a cache chamber for storing the medium is provided inside the cache structure, and the cache chamber can be communicated with the loading port; a transmission structure is arranged in the fuselage component and connected to the second handle component, and can move toward the rear end of the fuselage component with the second handle component under the action of external force to drive the second extraction component to move toward the extraction position; a trigger structure is arranged on the first handle component and is transmission-connected with the second positioning component, and can move relative to the shell structure under the action of external force and drive the second positioning component to move, so as to release the lock of the second extraction component relative to the fuselage component.

[0020] The medium transfer structure provided by the utility model is provided with an elastic component, one end of the elastic component is relatively fixed to the first extraction component, and the other end is relatively fixed to the end of the second extraction component away from the first extraction component, so that when the second extraction component is extended relative to the first extraction component to draw external liquid, solid, gas or other medium into the accommodating cavity through the transfer channel, a force is provided to drive the second extraction component to move toward a release position, so that when the second extraction component is released, the force of the elastic component can be used to drive the second extraction component and the extrusion component to move toward the release position, realize automatic resetting of the extrusion component, and push the medium in the accommodating cavity to be discharged to the outside through the transfer channel through the extrusion component, which is convenient for use.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0023] Figure 1 It is a structural schematic diagram of the medium transfer structure of the first embodiment of the utility model.

[0024] Figure 2 The structure of the medium transfer structure of the first embodiment of the utility model is schematically shown in FIG. Figure 1 .

[0025] Figure 3 A partial cross-sectional view of the medium transfer structure of the first embodiment of the utility model Figure 1 .

[0026] Figure 4 A partial cross-sectional view of the medium transfer structure of the first embodiment of the utility model Figure 2 .

[0027] Figure 5 A partial cross-sectional view of the medium transfer structure of the first embodiment of the utility model Figure 3 .

[0028] Figure 6 The structure of the medium transfer structure of the first embodiment of the utility model is schematically shown in FIG. Figure 2 .

[0029] Figure 7 It is a structural schematic diagram of a spray device according to a second embodiment of the utility model.

[0030] Figure 8 It is a structural schematic diagram of a spray device according to a third embodiment of the utility model.

[0031] Fig. 9 It is a schematic cross-sectional view of the structure of a spray device according to the third embodiment of the utility model.

[0032] Fig.10 It is a partial structural cross-sectional schematic diagram of a spray device according to a third embodiment of the utility model.

[0033] Fig.11 It is a structural schematic diagram of the connecting structure, the first end piece and the blocking structure of the third embodiment of the utility model.

[0034] Fig.12 It is a partial structural schematic diagram of a spray device according to the third embodiment of the utility model.

[0035] Fig.13 It is a partial structural exploded schematic diagram of a spray device according to a third embodiment of the utility model. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0040] Unless otherwise defined, the technical or scientific terms used herein shall have the common meanings understood by persons with ordinary skills in the field to which the utility model belongs. The words "first", "second" and similar words used in the patent application specification and claims of the utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "a" do not indicate a quantity limitation, but indicate the existence of at least one.

[0041] like Figure 1-6 As shown, as the first embodiment of the utility model, a medium transfer structure 100 is provided, including a first extraction component 1 and a second extraction component 2 which are telescopically connected to each other. It is agreed hereinafter that the end of the first extraction component 1 close to the second extraction component 2 is the end of the first extraction component 1 arranged opposite to the second extraction component 2, the end of the first extraction component 1 away from the second extraction component 2 is the end of the first extraction component 1 arranged opposite to the second extraction component 2, the end of the second extraction component 2 close to the first extraction component 1 is the end of the second extraction component 2 arranged opposite to the first extraction component 1, and the end of the second extraction component 2 away from the first extraction component 1 is the end of the second extraction component 2 arranged opposite to the first extraction component 1. The first extraction component 1 is provided with an active channel 11 inside, and a transfer channel 12 connected to the active channel 11 is provided on the first extraction component 1. The second extraction component 2 includes an extrusion member 21 sleeved in the active channel 11, and a receiving cavity 10 for receiving a medium such as a liquid, a solid, or a gas is formed between the extrusion member 21 and the transfer channel 12. When the medium is a liquid, it can be water, so that the medium transfer structure 100 is suitable for spraying toys such as toy water guns. The second extraction component 2 can telescopically move between an extraction position extended relative to the first extraction component 1 and a release position shortened relative to the first extraction component 1, thereby changing the length of the receiving cavity 10 and extracting or discharging the medium through the transfer channel 12. It also includes an elastic component 3, one end of which is relatively fixed to the first extraction component 1, and the other end of the elastic component 3 is relatively fixed to an end of the second extraction component 2 away from the first extraction component 1. When the second extraction component 2 is extended relative to the first extraction component 1 to draw external liquid, solid, gas or other medium into the accommodating cavity 10 through the transfer channel 12, it can provide a force to drive the second extraction component 2 to move toward the release position, so that when the second extraction component 2 is released, the force of the elastic component 3 can be used to drive the second extraction component 2 and the extrusion member 21 to move toward the release position, thereby realizing automatic resetting of the extrusion member 21, and pushing the medium in the accommodating cavity 10 to be discharged to the outside through the transfer channel 12 by the extrusion member 21, which is convenient for use.

[0042] like Figure 2As shown, in some specific embodiments, the first extraction component 1 includes a first extraction member 13 and a first end piece 14 connected to one end of the first extraction member 13 away from the second extraction member 2, and the second extraction component 2 includes a second extraction member 22 and a second end piece 23 connected to one end of the second extraction member 22 away from the first extraction component 1. The second extraction member 22 is sleeved in the movable channel 11 and is telescopically connected to the first extraction member 13, the extrusion member 21 is connected to one end of the second extraction member 22 close to the first extraction member 1, and the other end of the second extraction member 22 extends out of the first extraction member 13. One end of the elastic member 3 is relatively fixed to the first end piece 14, and the other end is relatively fixed to the second end piece 23. In the present embodiment, since the first end piece 14 is arranged on the end of the first extraction member 13 away from the second extraction component 2, and the second end piece 23 is arranged on the end of the second extraction member 22 away from the first extraction component 1, when the second extraction component 2 is in a released state, there is a certain spacing distance between the end of the elastic member 3 relatively fixed to the first end piece 14 and the end of the second end piece 23 relatively fixed, thereby reserving sufficient space for arranging the elastic member 3. Of course, in other embodiments, the first end piece 14 can also be arranged in the middle of the first extraction member 13 or close to the end of the second extraction component 2, and the elastic member 3 can also be arranged.

[0043] like Figure 4 , 5 As shown, in some specific embodiments, the first end piece 14 includes a first end side plate 141 arranged around the outer periphery of the first extraction member 13, the second end piece 23 includes a second end side plate 231 arranged around the outer periphery of the second extraction member 22, and the elastic member 3 is configured as a sleeve structure sleeved on the first extraction component 1 and the second extraction component 2, and one end is relatively fixed to the first end side plate 141, and the other end is relatively fixed to the second end side plate 231, and the structure is compactly arranged. In other embodiments, the elastic member 3 can also be arranged on the side of the first extraction component 1 and the second extraction component 2.

[0044] In some specific embodiments, a first mounting portion 1411 is provided on the first end side plate 141, and a second mounting portion 2311 is provided on the second end side plate 231. One end of the elastic member 3 is mounted on the first mounting portion 1411 via a first fastener 15, and the other end is mounted on the second mounting portion 2311 via a second fastener 24, for installation and positioning of the elastic member 3.

[0045] In some specific embodiments, the first mounting portion 1411 is provided with a concave ring structure 1412 formed by being recessed in the circumferential direction of the first end side plate 141, and the second mounting portion 2311 is provided with a concave ring structure 2312 formed by being recessed in the circumferential direction of the second end side plate 231, one end of the elastic member 3 is tightly connected to the outside of the first mounting portion 1411 through a first fastener 15, and the first fastener 15 is limited in the concave ring structure 1412, and the other end is tightly connected to the outside of the second mounting portion 2311 through a second fastener 24, and the second fastener 24 is limited in the concave ring structure 2312. In this embodiment, the first fastener 15 and the second fastener 24 are configured as a tying structure such as a plastic cable tie, iron wire, or rubber band. By limiting the first fastener 15 in the concave ring structure 1412 and the second fastener 24 in the concave ring structure 2312, the elastic member 3 is prevented from loosening relative to the first extraction component 1 or the second extraction component 2, and the connection stability is improved. In other embodiments, the first fastener 15 or the second fastener 24 can also be configured as other fastening structures such as glue and screws, which can also be used for relative fixation of the elastic member 3, or the two ends of the elastic member 3 are respectively welded and fixed to the first extraction component 1 and the second extraction component 2.

[0046] In some specific embodiments, the first mounting portion 1411 is arranged along the circumferential direction of the first end side plate 14, and the outer peripheral side surface of the first mounting portion 1411 protrudes from the outer peripheral side surface of the first extraction member 13 to support the inner wall of the elastic member 3 away from the outer wall of the first extraction member 13, and the second mounting portion 2311 is arranged along the circumferential direction of the second end side plate 231, and the outer peripheral side surface of the second mounting portion 2311 protrudes from the outer peripheral side surface of the second extraction member 22 to support the inner wall of the elastic member 3 away from the outer wall of the second extraction member 22, thereby reducing the contact or friction between the elastic member 3 and the first extraction member 13 or the second extraction member 22, and extending the service life of the elastic member 3. In other embodiments, only the outer peripheral side surface of the first mounting portion 1411 may be arranged to protrude from the outer peripheral side surface of the first extraction member 13, or only the outer peripheral side surface of the second mounting portion 2311 may be arranged to protrude from the outer peripheral side surface of the second extraction member 22.

[0047] like Figure 4 , 5As shown, in some specific embodiments, the first end piece 14 further includes a first end panel 142 connected to the first end side plate 141, and the first end panel 142 is combined with or abutted against an end surface of the first extraction member 13 away from the second extraction component 2, so that the first end panel 142 is limited to an end side of the first extraction member 13 away from the second extraction component 2, and the first end side plate 141 is prevented from moving relative to the first extraction member 13 toward the second extraction component 2 under the action of the elastic member 3. The second end piece 23 further includes a second end panel 232 connected to the second end side plate 231, and the second end panel 232 is combined with or abutted against an end surface of the second extraction member 22 away from the first extraction component 1, so that the second end panel 232 is limited to an end side of the second extraction member 22 away from the first extraction component 1, and the second end side plate 231 is prevented from moving relative to the second extraction member 22 toward the first extraction component 1 under the action of the elastic member 3.

[0048] like Figure 1 , 3 As shown, in some specific embodiments, the first extraction member 13 is configured as a sleeve structure, the first end panel 142 covers the opening at one end of the first extraction member 13, the transfer channel 12 is opened on the first end panel 142, the second extraction member 22 is configured as a sleeve structure, and the second end panel 232 covers the opening at one end of the second extraction member 13. The structure is simple and practical.

[0049] like Figure 3 As shown, in some specific embodiments, the extrusion member 21 includes a docking portion 211 and an extrusion plate 212 connected to the docking portion 211 at one end close to the first extraction component 1. The docking portion 211 is cooperatively connected to one end of the second extraction member 22 close to the first extraction component 1. The outer peripheral shape of the extrusion plate 212 is adapted to the cross-sectional shape of the active channel 11 and is used to block one side of the accommodating cavity 10, so that the extrusion plate 212 can move with the second extraction component 2 to push the medium in the accommodating cavity 10 to be discharged to the outside through the transfer channel 12.

[0050] In some specific embodiments, a docking groove 221 is recessed on the second extraction member 22 from its end surface close to the first extraction component 1, and the docking portion 211 cooperates in the docking groove 221 to connect with the second extraction member 22, so as to perform a tight-fitting connection between the extrusion member 21 and the second extraction member 22, which can be disassembled or replaced. In this embodiment, the docking groove 221 is directly formed by the hollow cavity inside the second extraction member 22 of the sleeve structure, which simplifies the structure. In other embodiments, the second extraction member 22 can also be set as a solid structure, so that the docking groove 221 is set as an independent groove structure, or the extrusion member 21 can also extend into the docking portion 211 through the second extraction member 22 to be tightly connected with the end of the second extraction member 22 close to the first extraction component 1, or the extrusion member 21 and the end of the second extraction member 22 close to the first extraction component 1 are integrally formed to improve the stability of the connection between the extrusion member 21 and the second extraction member 22.

[0051] In some specific embodiments, the outer peripheral edge of the extrusion plate 212 is provided on the outer peripheral side of the protruding docking portion 211 to form a step surface 2121 on the side of the extrusion plate 212 away from the first extraction component 1 for combining with or abutting against an end surface of the second extraction component 22 close to the first extraction component 1, thereby limiting the extrusion plate 212 on the end side of the second extraction component 22 close to the first extraction component 1, thereby improving the stability of the connection between the extrusion plate 212 and the second extraction component 22.

[0052] In some specific embodiments, the extrusion member 21 is made of a hard material, such as hard silicone, hard rubber, etc. The outer peripheral side of the extrusion plate 212 is arranged in close contact with the inner wall of the active channel 11, which is conducive to completely pushing the medium in the accommodating cavity 10 out of the outside. The outer peripheral side of the extrusion plate 212 and the inner wall of the active channel 11 can also be arranged with a gap to reduce the friction between the extrusion plates 212, so as to facilitate the movement of the extrusion plates 212 relative to the active channel 11. Optionally, the gap is less than 1 mm, especially less than 0.5 mm, so as to prevent a large amount of medium from leaking from the gap to the outside of the first extraction member 13 and the second extraction member 22. Compared with some pistons made of soft rubber on the market that have an interference fit with the inner wall of the piston cylinder, the friction between the extrusion piece 21 made of hard material and the inner wall of the first extraction piece 13 in this embodiment is smaller, and the movement of the extrusion piece 21 in the movable channel 11 is easier, which facilitates the elastic member 3 to drive the second extraction piece 22 and the extrusion piece 21 to shrink quickly relative to the first extraction piece 13, thereby discharging the medium outside the medium transfer structure 100 faster. In addition, compared with the soft rubber pistons on the market, the extrusion piece 21 made of hard material in this embodiment is less susceptible to wear and damage by impurities such as mud and sand, thereby extending its service life.

[0053] like Figure 2 , 6As shown, in some specific embodiments, the elastic member 3 is configured as an elastic sealing sleeve structure that is sleeved outside the first extraction component 1 and the second extraction component 2, and one end is relatively fixed and sealed to the first end side plate 131 on the first extraction component 1 through a first fastener 15, and the other end is relatively fixed and sealed to the second end side plate 231 on the second extraction component 2 away from the first extraction component 1 through a second fastener. Since the first fastener 15 and the second fastener 24 are configured as a plastic cable tie, iron wire, rubber band or other tying structures, the elastic member 3 can be respectively fixed while the elastic member 3 is sealed and connected. The structure is simple and the operation is convenient. In the present embodiment, the elastic member 3 is configured as an elastic sealing sleeve structure, so that the elastic member 3 has the functions of resetting the extrusion member 21 and sealing the connection position between the first extraction component 1 and the second extraction component 2. The elastic sealing sleeve structure can be made of soft elastic materials such as soft silicone and soft rubber. Compared with the elastic member 3 configured as a tension spring, the elastic member 3 made of elastic materials such as soft silicone and soft rubber will not rust and has a sealing effect, which can prevent the medium in the accommodating cavity 10 from leaking to the outside of the elastic member 3, and has a good water leakage prevention effect. In other embodiments, the elastic member 3 can also be configured as a tension spring sleeved outside the first extraction component 1 and the second extraction component 2, which can also realize the resetting of the extrusion member 21.

[0054] like Figure 7 As shown, as a second embodiment of the utility model, a spraying device is also disclosed, including the medium transfer structure 100 provided in the first embodiment, and a nozzle structure 4 arranged on the first extraction component 1 away from the end of the second extraction component 2, the nozzle structure 4 is provided with a spraying port 41, and the transfer channel 12 is arranged between the spraying port 41 and the accommodating cavity 10. When extracting the medium, the external medium is extracted into the accommodating cavity 10 through the spraying port 41 and the transfer channel 12, and when ejecting the medium, the medium in the accommodating cavity 10 is discharged to the outside through the transfer channel 12 and the spraying port 41. In this embodiment, the nozzle structure 4 and the first end piece 14 are integrally formed, and the structure is simple.

[0055] like Figure 8As shown, as the third embodiment of the utility model, a spray device is also disclosed, including the medium transfer structure 100 provided in the first embodiment, and a nozzle structure 4 arranged on the first extraction component 1 away from one end of the second extraction component 2, a spray port 41 is opened on the nozzle structure 4, and a transfer channel 12 is arranged between the spray port 41 and the accommodating cavity 10. When extracting the medium, the external medium is extracted into the accommodating cavity 10 through the spray port 41 and the transfer channel 12. When discharging the medium, the medium in the accommodating cavity 10 is discharged to the outside through the transfer channel 12 and the spray port 41. A connecting structure 5 is also arranged between the nozzle structure 4 and the first extraction component 1. A connecting cavity 50 is formed around the nozzle structure 4, the connecting structure 5 and the first extraction component 1. A loading port 51 is provided on the connecting structure 5. The loading port 51 and the spray port 41 are respectively connected to the connecting cavity 50. One end of the transfer channel 12 is connected to the accommodating cavity 10, and the other end is connected to the connecting cavity 50, so that the accommodating cavity 10 and the connecting cavity 50 are connected to form an extraction chamber. When extracting the medium, the external medium is extracted into the accommodating cavity 10 through the loading port 51, the connecting cavity 50 and the transfer channel 12. When ejecting the medium, the medium in the accommodating cavity 10 is discharged to the outside through the transfer channel 12, the connecting cavity 50 and the spray port 41.

[0056] like Fig.10 As shown, in some specific embodiments, a blocking structure 6 and a one-way valve 7 are provided in the connecting cavity 50, and the feeding port 51 is arranged on the side of the connecting structure 5. The blocking structure 6 is connected to the first end piece 14 of the first extraction component 1. In other embodiments, the blocking structure 6 can also be arranged to be connected to other parts of the first extraction component 1 or the connecting structure 5, or to be connected to the first extraction component 1 and the connecting structure 5 at the same time.

[0057] In some specific embodiments, the one-way valve 7 includes a first valve 71 covering the inner side of the feed port 51, and a second valve 72 covering the inner side of the spray port 41, the second valve 72 is provided with a valve port 721, and the blocking structure 6 covers the valve port 721. The one-way valve 7 is made of flexible materials with a certain deformation effect, such as flexible silicone and flexible rubber. When the second extraction component 2 is extended relative to the first extraction component 1, the first valve 71 is deformed toward the connecting cavity 50 under the negative pressure in the extraction chamber to open the feed port 51, so that the external medium can be drawn into the accommodating chamber 10 through the feed port 51, the connecting chamber 50 and the transfer channel 12. When the second extraction component 2 is shortened relative to the first extraction component 1, the second valve 72 is deformed toward the spray port 41 under the pressure in the extraction chamber to open the valve port 721, so that the medium in the accommodating chamber 10 can be discharged to the outside through the transfer channel 12, the connecting chamber 50, the valve port 721 and the spray port 41.

[0058] In some specific embodiments, the one-way valve 7 further comprises a valve body 73 fixed relative to the connecting cavity 50, and the first valve 71 is configured as an annular structure arranged along the inner wall of the connecting structure 5, and is formed by extending from the valve body 73 toward the first extraction assembly 1, so that the opening direction of the first valve 71 is substantially consistent with the direction in which the external medium enters the feeding port 51, the connecting chamber 50, the transfer channel 12 and the accommodating chamber 10, which is conducive to smoother entry of the external medium into the accommodating chamber 10. The second valve 72 is configured as a conical annular structure arranged along the inner side of the spraying port 41, and is formed by extending from the valve body 73 toward the blocking structure 6, and the inner diameter of the second valve 72 gradually decreases from the end thereof close to the spraying port 41 toward the end thereof close to the blocking structure 6, so that the structure of the second valve 72 itself is more stable, and the supporting effect between the second valve 72 and the blocking structure 6 is better, and the covering of the valve port 721 by the blocking structure 6 is more stable. In other embodiments, the second valve 72 can also be configured as a planar annular structure, so that the blocking structure 6 can also cover the valve port 721 on the second valve 71.

[0059] like Fig.11 As shown, in some specific embodiments, the blocking structure 6 is connected to the first end panel 142, and a plurality of transfer channels 12 are provided, and the plurality of transfer channels 12 are arranged at intervals along the circumferential direction of the blocking structure 6. The connecting structure 5 and the first end piece 14 are integrally formed to simplify the structure. In other embodiments, the connecting structure 5 can also be independently connected to the first end piece 14 and connected together by means of buckles, threads, etc.

[0060] like Fig. 9 , 12 As shown, in some specific embodiments, it also includes a shell structure 200, a cache structure 300, a transmission structure 400, and a trigger structure 500. The shell structure 200 includes a body component 201, a first handle component 202 connected to the rear of the body component 201, and a second handle component 203 movably connected to the outside of the body component 201, the medium transfer structure 100 is arranged in the body component 201 along the length direction of the body component 201, and the nozzle structure 4 and the connection structure 5 are relatively fixed to the front of the body component 201 through the first positioning component 8, and the end of the second extraction component 2 away from the first extraction component 1 can be locked or separated from the rear of the body component 201 through the second positioning component 9 when the second extraction component 2 is in the extraction position, and the front end of the body component 201 is provided with a shooting port 2011 arranged corresponding to the spray port 41. In other embodiments, any one or two or three of the nozzle structure 4, the connecting structure 5, and the end of the first extraction component 1 away from the second extraction component 2 can be relatively fixed to the front of the fuselage component 201 through the first positioning component 9, so that the front end of the medium transfer structure 100 can be relatively fixed to the front of the fuselage component 201.

[0061] The cache structure 300 is arranged on the shell structure 200, and a cache chamber for storing the medium is arranged inside the cache structure 300, and the cache chamber can be communicated with the loading port 51. In this embodiment, the cache structure 300 is arranged between the upper side of the medium transfer structure 100 and the inner wall of the fuselage component 201, and the space arrangement is compact and reasonable. In other embodiments, the cache structure 300 can also be arranged between the lower side of the medium transfer structure 100 and the inner wall of the fuselage component 201, or arranged in the first handle component 202, or externally connected to the outside of the shell structure 200.

[0062] The transmission structure 300 is arranged in the body component 201 and connected to the second handle component 203. It can move with the second handle component 203 toward the rear end of the body component 201 under the action of external force to drive the second extraction component 2 to move toward the extraction position, so that the first valve 71 is deformed toward the connection cavity 50 under the negative pressure in the extraction chamber to open the loading port 51, and the external medium can be drawn into the accommodating chamber 10 through the loading port 51, the connecting chamber 50 and the transfer channel 12, and the rear part of the medium transfer structure 100 can be relatively locked with the body component 201 through the second positioning component 8. In this embodiment, the transmission structure 300 is arranged between the lower side of the medium transfer structure 100 and the inner wall of the body component 201, and the space arrangement is compact and reasonable. In other embodiments, the cache structure 300 can also be arranged between the upper side of the medium transfer structure 100 and the inner wall of the body component 201, or arranged outside the body component 201.

[0063] The trigger structure 500 is arranged on the first handle component 202 and is transmission-connected with the second positioning component 9. It can move relative to the shell structure 200 under the action of external force and drive the second positioning component 9 to move, so as to release the lock of the second extraction component 2 relative to the fuselage component 201, so that the second extraction component 2 drives the extrusion member 21 to move toward the first extraction component 1 under the action of the elastic component 3, so as to push the medium in the accommodating chamber 10 to be discharged to the outside through the transfer channel 12, the connecting chamber 50, the valve port 721, and the spray port 41.

[0064] In some specific embodiments, an operating member 2313 is protruding downward from the bottom of the second end side plate 231, and the transmission member 400 abuts against the front side of the operating member 2313 to drive the second extraction component 2 to move toward the extraction position, which has a simple structure and low production cost.

[0065] like Fig.13As shown, in some specific embodiments, the inner wall of the fuselage component 201 is provided with a first guide rail member 2012 arranged along its length direction, and two first guide rail members 2012 are provided, which are respectively arranged on the left and right sides of the medium transfer structure 100, and the two sides of the second end side plate 231 are respectively provided with first guide members 2314 slidingly connected to the correspondingly arranged first guide rail members 2012. When the second extraction component 2 telescopes relative to the first extraction component 1, it is guided by the first guide member 2314 sliding along the first guide rail member 2012.

[0066] In some specific embodiments, the first positioning assembly 8 includes a first positioning member 81 and a first positioning groove 82. The first positioning member 81 is formed by the nozzle structure 4 and a boss protruding outside the connecting structure 5. The first positioning groove 82 is configured as a through hole structure opened on the fuselage component 201. The front end of the medium transfer structure 100 and the fuselage component 201 are positioned by the first positioning member 81 and the first positioning groove 82 being engaged and connected.

[0067] In some specific embodiments, the second positioning component 9 includes a locking member 91 and a second positioning member 92, the locking member 91 includes a connecting shaft 911 protruding from the second end panel 232 in a direction away from the first extraction component 1, and a locking portion 912 connected to the free end of the connecting shaft 911, the locking portion 912 is arranged along the radially protruding outer peripheral side of the connecting shaft 911 to form a locking surface 9121 on a side of the locking portion 912 close to the first extraction component 1. The upper end of the second positioning member 92 is telescopically connected to the fuselage component 201 along the vertical direction of the medium transfer structure 100. The second positioning member 92 is provided with a locking hole 921 and an unlocking hole 922 arranged below the locking hole 921. The unlocking hole 922 is connected to the locking hole 921. The inner diameter of the locking hole 921 is larger than the outer diameter of the connecting shaft 911 and smaller than the outer diameter of the locking surface 9121. When the connecting shaft 911 is located in the locking hole 921, the side surface of the second positioning member 92 away from the first extraction component 1 is abutted against the locking surface 9121 for buckling, so that the second extraction component 2 is locked in the extraction position. The inner diameter of the unlocking hole 922 is larger than the outer diameter of the locking surface 9121. When the connecting shaft 911 is located in the unlocking hole 922, the locking portion 912 is allowed to pass through the unlocking hole 922 and disconnect from the second positioning member 92 to achieve unlocking, so that the second extraction component 2 can be retracted and reset relative to the first extraction component 1 under the action of the elastic member 3. The trigger structure 500 is in contact with the second positioning member 92, and can move relative to the first handle member 202 under the action of an external force, thereby driving the second positioning member 92 to telescopically move relative to the body member 201 until the connecting shaft 911 and the unlocking hole 922 are arranged correspondingly, so as to release the lock between the second extraction component 2 and the body member 201. A reset member for keeping the second positioning member 92 in the locked position corresponding to the locking hole 921 and the connecting shaft 911 is arranged between the upper end of the second positioning member 92 and the body member 201. The reset member can be set as a compression spring for resetting the second positioning member 92 after the telescopic movement. The entire spraying device is a purely mechanical design, does not require a power supply, can improve the hands-on ability of operators such as children, and stimulate the interest of operators such as children in spraying games.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the various embodiments of the utility model.

[0069] In short, the above is only a preferred embodiment of the present utility model, and all equivalent changes and modifications made according to the scope of the patent application of the present utility model should fall within the scope of the present utility model patent.

Claims

1. A medium transfer structure, characterized in that: include: A first extraction component and a second extraction component are telescopically connected to each other, wherein the first extraction component is provided with an active channel inside, and the first extraction component is provided with a transfer channel connected to the active channel, and the second extraction component includes an extrusion component sleeved in the active channel, and a receiving cavity for receiving a medium is formed between the extrusion component and the transfer channel, and the second extraction component can telescopically move between an extraction position extended relative to the first extraction component and a release position shortened relative to the first extraction component; The elastic component has one end fixed relative to the first extraction component and the other end fixed relative to an end of the second extraction component away from the first extraction component. When the second extraction component is extended relative to the first extraction component, it can provide a force to drive the second extraction component to move toward the release position.

2. The medium transfer structure according to claim 1, characterized in that: The first extraction component includes a first extraction member and a first end piece connected to one end of the first extraction member away from the second extraction member, the second extraction component includes a second extraction member and a second end piece connected to one end of the second extraction member away from the first extraction member, the second extraction member is sleeved in the movable channel and is telescopically connected to the first extraction member, the extrusion member is connected to one end of the second extraction member close to the first extraction member, one end of the elastic member is relatively fixed to the first end piece, and the other end is relatively fixed to the second end piece.

3. The medium transfer structure according to claim 2, characterized in that: The first end piece includes a first end side plate arranged around the outer circumference of the first extraction piece, the second end piece includes a second end side plate arranged around the outer circumference of the second extraction piece, and the elastic member is configured as a sleeve structure sleeved outside the first extraction component and the second extraction component, with one end relatively fixed to the first end side plate and the other end relatively fixed to the second end side plate.

4. The medium transfer structure according to claim 3, characterized in that: The first end head side plate is provided with a first mounting portion, the second end head side plate is provided with a second mounting portion, one end of the elastic member is mounted on the first mounting portion through a first fastener, and the other end is mounted on the second mounting portion through a second fastener.

5. The medium transfer structure according to claim 4, characterized in that: The first mounting portion is provided with a concave ring structure 1 formed by being recessed in the circumferential direction of the first end side plate, and the second mounting portion is provided with a concave ring structure 2 formed by being recessed in the circumferential direction of the second end side plate. One end of the elastic member is tightly connected to the outside of the first mounting portion by a first fastener, and the first fastener is limited in the concave ring structure 1, and the other end is tightly connected to the outside of the second mounting portion by a second fastener, and the second fastener is limited in the concave ring structure 2.

6. The medium transfer structure according to claim 4, characterized in that: The first mounting portion is arranged along the circumferential direction of the first end head side plate, and the outer peripheral side surface of the first mounting portion protrudes from the outer peripheral side surface of the first drawer to support the inner wall of the elastic member away from the outer wall of the first drawer; and / or, The second mounting portion is arranged along the circumferential direction of the second end head side plate, and the outer peripheral side surface of the second mounting portion protrudes from the outer peripheral side surface of the second extraction member to support the inner wall of the elastic component away from the outer wall of the second extraction member.

7. The medium transfer structure according to claim 3, characterized in that: The first end piece further comprises a first end panel connected to the first end side plate, the first end panel is combined with or abuts against an end surface of the first extraction member away from the second extraction component, and the transfer channel is provided on the first end panel; and / or, The second end piece also includes a second end panel connected to the second end side plate, and the second end panel is combined with or abutted against an end surface of the second extraction member away from the first extraction component.

8. The medium transfer structure according to claim 2, characterized in that: The extrusion member includes a docking portion and an extrusion plate connected to the docking portion at one end close to the first extraction component. The docking portion is cooperatively connected or integrally formed with the end of the second extraction member close to the first extraction component. The outer peripheral shape of the extrusion plate is adapted to the cross-sectional shape of the movable channel.

9. The medium transfer structure according to claim 8, characterized in that: The second extraction member is provided with a docking groove from an end face thereof close to the first extraction component, and the docking portion is fitted in the docking groove and connected to the second extraction member. The outer peripheral edge of the extrusion plate is arranged on the outer peripheral side of the protruding docking portion to form a step surface on a side face of the extrusion plate away from the first extraction component for combining with or abutting against an end face of the second extraction member close to the first extraction component.

10. The medium transfer structure according to claim 8, characterized in that: The extrusion piece is made of hard material, and the outer peripheral side of the extrusion plate is arranged in close contact with the inner wall of the movable channel or with a gap therebetween.

11. The medium transfer structure according to any one of claims 1 to 10, characterized in that: The elastic component is configured as an elastic sealing sleeve structure sleeved outside the first extraction component and the second extraction component, and one end is relatively fixed and sealed to the first extraction component, and the other end is relatively fixed and sealed to an end of the second extraction component away from the first extraction component.

12. A spraying device, characterized in that: include: According to any one of claims 1 to 11, the medium transfer structure and the nozzle structure arranged on the first extraction component at one end away from the second extraction component, wherein the nozzle structure is provided with a spraying port, and the transfer channel is arranged between the spraying port and the accommodating cavity.

13. The spray device according to claim 12, characterized in that: A connecting structure is also arranged between the nozzle structure and the first extraction component. A connecting cavity is formed between the nozzle structure, the connecting structure and the first extraction component. A loading port is opened on the connecting structure. The loading port and the spray port are respectively connected to the connecting cavity. One end of the transfer channel is connected to the accommodating cavity, and the other end is connected to the connecting cavity to form an extraction chamber.

14. The spray device according to claim 13, characterized in that: A blocking structure and a one-way valve are provided in the connecting cavity, the feeding port is arranged on the side of the connecting structure, the blocking structure is connected to the first extraction component and / or the connecting structure, the one-way valve includes a first valve covering the inner side of the feeding port, and a second valve covering the inner side of the spray port, the second valve is provided with a valve port, the blocking structure covers the valve port, when the second extraction component is extended relative to the first extraction component, the first valve is deformed toward the connecting cavity under the negative pressure in the extraction chamber to open the feeding port, when the second extraction component is shortened relative to the first extraction component, the second valve is deformed toward the spray port under the pressure in the extraction chamber to open the valve port.

15. The spray device according to claim 14, characterized in that: The one-way valve also includes a valve body fixed relative to the connecting cavity, the first valve is configured as an annular structure arranged along the inner wall of the connecting structure and extending from the valve body toward the first extraction component, the second valve is configured as a conical ring structure arranged along the inner side of the spray port and extending from the valve body toward the blocking structure, and the inner diameter of the second valve gradually decreases from its end close to the spray port to its end close to the blocking structure.

16. The spray device according to claim 15, characterized in that: The blocking structure is connected to the first extraction component, and a plurality of transfer channels are provided, and the plurality of transfer channels are respectively arranged at intervals along the circumferential direction of the blocking structure.

17. The spray device according to any one of claims 12 to 16, characterized in that: Also includes: The outer shell structure comprises a fuselage component, a first handle component connected to the rear of the fuselage component, and a second handle component movably connected to the outside of the fuselage component, the medium transfer structure is arranged in the fuselage component along the length direction of the fuselage component, and the nozzle structure and / or the connecting structure and / or the end of the first extraction component away from the second extraction component is relatively fixed to the front of the fuselage component through the first positioning component, the end of the second extraction component away from the first extraction component can be locked or separated from the rear of the fuselage component through the second positioning component when the second extraction component is in the extraction position, and the front end of the fuselage component is provided with a shooting port arranged corresponding to the spray port; A cache structure, arranged on the shell structure, wherein a cache chamber for storing the medium is provided inside the cache structure, and the cache chamber can be communicated with the feeding port; The transmission structure is arranged in the body member and connected to the second handle member, and can move with the second handle member toward the rear end of the body member under the action of an external force to drive the second extraction assembly to move toward the extraction position; The trigger structure is arranged on the first handle component and is transmission-connected with the second positioning assembly. It can move relative to the shell structure under the action of external force and drive the second positioning assembly to move, so as to release the lock of the second extraction assembly relative to the fuselage component.

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