Ejector

Abstract

The present invention relates to an ejector. The ejector comprises: a container; an ejecting mechanism, comprising an infusion component; an actuating mechanism, comprising a holding member and an actuating member; a first locking mechanism, wherein when the number of uses of the ejector does not reach a preset value and liquid suction of the infusion component is completed, the first locking mechanism locks the actuating member; and a second locking mechanism, which is located on the side of the container facing the holding member, wherein when the number of uses of the ejector reaches the preset value and the liquid suction of the infusion component is completed, the second locking mechanism locks the actuating member. In two locking modes, the holding member can drive, under an external force, the infusion component to move in a second direction so as to trigger ejection. The ejector of the present invention is provided with two locking mechanisms, i.e. the first locking mechanism and the second locking mechanism, for respectively executing two locking modes. The second locking mechanism is configured to lock the ejector in a fully liquid-sucked state when the number of uses of the ejector reaches the preset value. The ejector can complete the last use among the limited number of uses of the container, the locking safety is high, and it is difficult to forcibly unlock the second locking mechanism by means of other tools.

Description

Ejector TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to an ejector. BACKGROUND

[0002] A nebulizer generally comprises a counting component and a locking component, when the number of uses of the nebulizer reaches a preset value, the locking component locks the nebulizer to prevent the operator from continuing to use the nebulizer.

[0003] CN111821546B discloses a nebulizer comprising an indicator device to count and a locking device to lock the container when the number of uses of the nebulizer reaches a preset value, the locking device comprises a locking component and a locking spring, after the lower housing part is removed, the locking device can lock the inner part and the upper housing part, the inner part is prevented from rotating by the upper housing part which does not rotate, the user is prevented from continuing to use the nebulizer by directly rotating the inner part, and the locking component is locked during the stretching of the nebulizer to prevent the nebulizer from being further stretched, i.e. to prevent the delivery tube of the nebulizer from further absorbing liquid. After the upper housing part is installed, the actuator provided on the housing part can push the locking component back to the unlocked position to achieve unlocking. In this scheme, the locking component is located on one side of the container, after the lower housing part is removed, the user can easily unlock the locking component with any columnar structure to continue to use the nebulizer, resulting in inaccurate measurement of drug supply. SUMMARY

[0004] Based on the above-mentioned defects in the prior art, the purpose of the present application is to provide an ejector, which is provided with two sets of locking mechanisms, i.e. a first locking mechanism and a second locking mechanism, to perform two locking modes respectively, wherein the second locking mechanism is used to lock the ejector in a complete liquid absorption state when the number of uses of the ejector reaches a preset value, and the ejector can complete the current spraying in the state that the second locking mechanism performs locking, thereby improving the utilization rate of the liquid in the container, and the locking safety is high, and the second locking mechanism is not easy to be forcibly unlocked by other tools.

[0005] To this end, the present application provides the following technical scheme.

[0006] The present application provides an ejector, which comprises:

[0007] a container for containing liquid;

[0008] an ejecting mechanism comprising a liquid delivery component;

[0009] an actuating mechanism comprising a holding component and an actuating component, the holding component is used to hold the liquid delivery component and is movably connected to the actuating component; when the actuating component rotates, the holding component drives the liquid delivery component to move in a first direction, so that the liquid delivery component absorbs liquid from the container;

[0010] a first locking mechanism, when the number of uses of the sprayer does not reach a preset value and the infusion component finishes infusion, the first locking mechanism locks the actuating member to perform a first locking mode;

[0011] a second locking mechanism, which is located on a side of the container facing the holding member, when the number of uses of the sprayer reaches a preset value and the infusion component finishes infusion, the second locking mechanism locks the actuating member to perform a second locking mode;

[0012] In the two locking modes, the holding member can drive the infusion component to move in a second direction under an external force to trigger spraying; the first direction and the second direction are opposite.

[0013] Optionally, a new container is configured to be able to unlock the second locking mechanism, and an old container is configured to be unable to unlock the second locking mechanism.

[0014] Optionally, the sprayer further comprises a triggering member, which is used to trigger the holding member to move in a second direction and unlock the first locking mechanism, but is unable to unlock the second locking mechanism.

[0015] Optionally, the first locking mechanism comprises a first locking component and a first elastic member, and the first locking component comprises a first abutting portion;

[0016] When the sprayer is in an initial state, under the elastic force of the first elastic member, the first abutting portion abuts against the holding member in a first direction;

[0017] When the holding member moves in the first direction, under the elastic force of the first elastic member, the first locking component moves in the first direction;

[0018] When the infusion component finishes infusion, the first locking component moves to a first locking position and locks the actuating member;

[0019] When the holding member moves in the second direction, the holding member can push the first abutting portion to make the first locking component unlock.

[0020] Optionally, the second locking mechanism comprises a second locking component and a second elastic member, and the sprayer comprises a blocking structure;

[0021] When the number of uses does not reach a preset value, under the elastic force of the second elastic member, the second locking component abuts against the blocking structure in a first direction;

[0022] When the number of uses reaches the preset value, the blocking structure gives way, and under the elastic force of the second elastic member, the second locking component moves to the second locking position in the first direction to lock the actuating member.

[0023] Optionally, when the second locking mechanism executes the second locking mode, the holding member can drive the infusion component to move in the second direction to trigger the ejection by pressing the trigger member.

[0024] The projection of the second locking component and the holding member in the second direction does not overlap; the holding member does not contact the second locking component during the movement in the second direction, and the movement of the holding member cannot release the locking of the second locking mechanism.

[0025] Optionally, the ejection device further comprises a counting disc provided with a first ratchet structure and a gap, and the second locking component is provided with a second ratchet structure.

[0026] When the number of uses does not reach the preset value, the second ratchet structure engages with the first ratchet structure under the elastic force of the second elastic member, wherein the first ratchet structure forms the blocking structure.

[0027] When the number of uses reaches the preset value, the counting disc rotates to the position where the gap and the second ratchet structure are opposite in the first direction, and the gap is used to give way to the movement of the second locking component to the second locking position.

[0028] Optionally, the ejection device further comprises a balancing mechanism comprising a balancing element and a third elastic member, and the balancing element is provided with a third ratchet structure.

[0029] The third ratchet structure engages with the first ratchet structure under the elastic force of the third elastic member; wherein the size of the third ratchet structure in the circumferential direction of the counting disc is greater than the width of the gap.

[0030] Optionally, the counting disc is sleeved on the outer periphery of the actuating member, and the second locking mechanism and the balancing mechanism are respectively distributed on the two radial sides of the actuating member.

[0031] Optionally, the actuating member is provided with a first locking groove and a second locking groove, and the first locking groove and the second locking groove are distributed apart in the circumferential direction of the actuating member.

[0032] The first locking mechanism comprises a first locking component, and the first locking component is engaged in the first locking groove in the first direction to execute the first locking mode.

[0033] The second locking component is engaged in the second locking groove in the first direction to execute the second locking mode.

[0034] Optionally, the actuating member is provided with an outer protruding structure, and the outer protruding structure and the second locking groove are sequentially arranged along the rotation direction of the actuating member.

[0035] When the second locking mechanism is unlocked, the outer protruding structure is used to lift the second locking part during the rotation of the actuating member again, so that the counting disc is smoothly rotated to reengage with the first ratchet structure.

[0036] Optionally, the sprayer further comprises a first housing, and the actuating member is rotatably connected to the first housing, and the second locking mechanism is isolated in the first housing by the actuating member.

[0037] Optionally, the sprayer further comprises an unlocking auxiliary mechanism, which comprises a first pushing member.

[0038] When the second locking mechanism locks the actuating member, if a new container is replaced, the new container is configured to be able to push the first pushing member to move to an unlocking position in a second direction, the first pushing member pushes the second locking part away from the second locking position to achieve unlocking; if an old container is installed, the old container is configured to be unable to push the first pushing member to move to the unlocking position.

[0039] Optionally, the unlocking auxiliary mechanism further comprises a second pushing member.

[0040] When a new container is replaced, the new container is configured to be able to push the second pushing member in a second direction, so that the second pushing member pushes the first pushing member to move to an unlocking position.

[0041] Optionally, the container comprises a container body and a first auxiliary member, and the first auxiliary member is movably connected to the container body.

[0042] When the container is not activated, the first auxiliary member is in a first position.

[0043] When a new container is installed, the second pushing member abuts against the first auxiliary member in a first direction.

[0044] During the first spraying after the new container is installed, the first auxiliary member is moved to a second position under the abutting pressure of the second pushing member in the first direction, so that the container becomes an old container.

[0045] Optionally, the container body comprises a cover and a body, and the cover is mounted on the body.

[0046] The cover is open at least to one side of the retaining member, and the cover is provided with a first mounting part and a cavity which are sequentially arranged in a first direction.

[0047] The first auxiliary member is detachably connected to the first mounting portion when the first auxiliary member is in the first position;

[0048] The first auxiliary member is located in the cavity when the first auxiliary member is in the second position.

[0049] Optionally, the cover is sleeved on one end of the body, and the cavity is formed between the first mounting portion and the end of the body.

[0050] Optionally, the sprayer further comprises a guide member;

[0051] The guide member is used to guide the holding member to move in the first direction when the actuating member rotates;

[0052] The guide member is used to prevent the holding member from moving in the second direction when the holding member moves in the first direction to the full liquid suction position.

[0053] Optionally, the holding member is provided with concave cavities and second mounting portions which are sequentially distributed in the first direction, and the container is detachably connected to the second mounting portions;

[0054] The unlocking auxiliary mechanism further comprises a second auxiliary member which is movably connected to the holding member, and a second pushing member which is movably connected to the second auxiliary member, and the second auxiliary member is partially located in the concave cavities.

[0055] Optionally, the unlocking auxiliary mechanism further comprises a fourth elastic member which is connected to the second auxiliary member and the second pushing member respectively;

[0056] When the old container is detached, one end of the guide member extends into the concave cavities and abuts against the second auxiliary member in the first direction;

[0057] When the new container is installed, the first auxiliary member pushes the second pushing member in the second direction to unlock the second locking mechanism, and the fourth elastic member is compressed;

[0058] In the process of triggering the liquid suction for the first time after the new container is installed, the fourth elastic member rebounds to make the second auxiliary member move in the second direction relative to the second pushing member;

[0059] In the process of triggering the spraying for the first time after the new container is installed, the second auxiliary member moves to abut against the guide member, the holding member drives the container body to continue to move in the first direction, and the first auxiliary member moves in the second direction to the second position under the pressing of the second pushing member.

[0060] Optionally, the second auxiliary member comprises a first body portion and a plurality of first extension ribs connected to the first body portion; the retaining member is provided with a first through hole, the first body portion is located in the cavity, and the first extension ribs pass through the first through hole;

[0061] The second pushing member is located on a side of the retaining member facing the container, and comprises a second body portion and a plurality of second extension ribs connected to the second body portion, the second extension ribs are movably connected to the first extension ribs, and the second body portion is used to abut against the first auxiliary member.

[0062] Optionally, at least one of the second extension ribs is provided with a pushing portion, the pushing portion is located opposite to the first pushing member in the second direction, and the pushing portion is used to push the first pushing member to move to the unlocking position.

[0063] Optionally, an outer wall of the retaining member is provided with a groove extending in the second direction, and the first pushing member is provided with a pushed portion, the pushed portion and the pushing portion are sequentially arranged in the groove in the second direction.

[0064] Optionally, the first extension ribs are provided with buckling portions, the second extension ribs are in a bent structure and are provided with a second through hole and a buckling surface connected to each other, and the first extension ribs extend into the second through hole;

[0065] When the old container is removed, the first body portion abuts against the cavity wall of the cavity under the pressing of the guide member, and the buckling portions are buckled to the buckling surface;

[0066] When the new container is installed, the second pushing member moves in the second direction under the pressing of the first auxiliary member, and the buckling surface is separated from the buckling portions;

[0067] In the process of triggering the liquid suction for the first time after the new container is installed, the second auxiliary member moves in the second direction to the buckling portions to be buckled to the buckling surface again under the rebounding force of the fourth elastic member.

[0068] Optionally, the second auxiliary member further comprises a plurality of first abutting ribs, the first abutting ribs are provided with first protrusions; the retaining member is provided with a plurality of third through holes, the third through holes are provided with second protrusions, the first abutting ribs extend into the third through holes one by one and the outer walls thereof abut against the second protrusions, and the second pushing member comprises a plurality of second abutting ribs, the second abutting ribs and the first abutting ribs are arranged one by one;

[0069] When the old container is removed, the projections of the second abutting ribs in the second direction all fall on the first body portion;

[0070] In the first triggering process of the liquid suction after a new container is loaded, the second auxiliary member moves to the first protrusion being pressed inward by the second protrusion in the second direction, so that the first abutting rib is deformed inward, and the projection of the first abutting rib and the second abutting rib in the first direction at least partially overlaps.

[0071] In the first triggering process of the liquid injection after a new container is loaded, the first abutting rib pushes the second abutting rib to move in the first direction, so that the second pushing member pushes the first auxiliary member to the second position.

[0072] Optionally, the holding member is provided with a third mounting portion, and the infusion component is connected to the third mounting portion; an outer wall of the third mounting portion constitutes a side hole wall of the third through hole, and the outer wall of the third mounting portion is provided with a plurality of outer convex inclined surfaces which are inclined outward in the second direction and correspond to the second abutting ribs one by one.

[0073] In the process of loading a new container, the second pushing member moves in the second direction, and the second abutting rib is deformed outward by being pressed outward by the corresponding outer convex inclined surfaces.

[0074] Optionally, a side of the first main body portion away from the first abutting rib is provided with a plurality of recessed portions which are arranged one by one in correspondence with the first abutting ribs.

[0075] Optionally, a side surface of the first main body portion towards the guide member is provided with a plurality of protruding portions which are arranged one by one on the outer side of the recessed portions.

[0076] When the protruding portions are pressed in the first direction, the protruding portions cooperate with the recessed portions to increase the deformation amount of the first abutting rib inward.

[0077] Optionally, an end of the first abutting rib towards the second pushing member is provided with a first abutting inclined surface, and an end of the second abutting rib towards the second auxiliary member is provided with a second abutting inclined surface, and the first abutting inclined surface is inclined in the first direction from the outer side to the inner side.

[0078] In the process of the first abutting rib pushing the second abutting rib to move in the first direction, the first abutting inclined surface and the second abutting inclined surface abut.

[0079] Optionally, the third through hole is provided with a first reset guide rib and a second reset guide rib.

[0080] In the first triggering process of the liquid injection after a new container is loaded, the first reset guide rib is used to guide the first abutting rib to recover the deformation outward, and the second reset guide rib is used to guide the second abutting rib to recover the deformation inward.

[0081] The present application has the following technical effects:

[0082] The present application provides a sprayer, which is provided with two sets of locking mechanisms, i.e., a first locking mechanism and a second locking mechanism. The first locking mechanism is used to lock the sprayer in a liquid suction complete state during normal use of the sprayer, so as to prevent the user from triggering the sprayer by mistake due to rotation of the actuating member. The second locking mechanism is used to lock the sprayer in the liquid suction complete state when the number of uses of the sprayer reaches a preset value. Both the first locking mechanism and the second locking mechanism lock the actuating member, but do not lock the retaining member. The retaining member can drive the liquid delivery component to move in the second direction under external force, so as to complete the spraying. The liquid utilization rate in the container can be improved. In addition, the second locking mechanism is arranged on the side of the container facing the retaining member, so as to hinder the user from forcibly unlocking the second locking mechanism by using other tools, ensure the safety of the locking, and avoid the user from continuing to use the old container. BRIEF DESCRIPTION OF DRAWINGS

[0083] Fig. 1 is a structure sectional view of the sprayer when the sprayer sucks liquid for the first time after a new container is loaded according to the present application;

[0084] Fig. 2 is an enlarged view of A in Fig. 1;

[0085] Fig. 3 is a structure sectional view of the sprayer when the sprayer sucks liquid for the first time after a new container is loaded according to the present application;

[0086] Fig. 4 is a partial structure schematic view of the sprayer according to the present application;

[0087] Fig. 5 is a partial structure exploded view of the sprayer according to the present application;

[0088] Fig. 6 is an enlarged view of B in Fig. 5;

[0089] Fig. 7 is a partial structure schematic view of the sprayer according to the present application;

[0090] Fig. 8 is a partial structure exploded view of the sprayer according to the present application;

[0091] Fig. 9 is a three-dimensional structure schematic view of the actuating member according to the present application;

[0092] Fig. 10 is a three-dimensional structure schematic view of the guide member according to the present application;

[0093] Fig. 11 is a three-dimensional structure schematic view of the retaining member according to the present application;

[0094] Fig. 12 is a structure sectional view of the retaining member according to the present application;

[0095] Fig. 13 is a bottom view of the first housing according to the present application;

[0096] Fig. 14 is a perspective view of the first housing of the present application;

[0097] Fig. 15 is a sectional view of the container of the present application with the first auxiliary member in the first position;

[0098] Fig. 16 is a sectional view of the container of the present application with the second auxiliary member in the first position;

[0099] Fig. 17 is an enlarged view of the injector of the present application with the old container removed;

[0100] Fig. 18 is an assembled sectional view of the holder, the second push member and the second auxiliary member of the present application with the old container removed;

[0101] Fig. 19 is an enlarged view of the injector of the present application with the new container inserted and the second locking mechanism unlocked;

[0102] Fig. 20 is a partial sectional view of the injector of the present application with the new container inserted and the second locking mechanism unlocked;

[0103] Fig. 21 is an assembled sectional view of the holder, the second push member and the second auxiliary member of the present application with the new container inserted;

[0104] Fig. 22 is an enlarged view of the injector of the present application with the first suction of the new container completed;

[0105] Fig. 23 is an assembled sectional view of the holder, the second push member and the second auxiliary member of the present application with the first suction of the new container completed;

[0106] Fig. 24 is an enlarged view of the injector of the present application with the first ejection of the new container completed;

[0107] Fig. 25 is an exploded view of the second push member, the second auxiliary member and the fourth elastic member of the present application;

[0108] Fig. 26 is a front view of the injector of the present application.

[0109] Reference signs 100, injector; 1, container; 11, container body; 111, cover; 1111, first mounting portion; 1112, cavity; 112, barrel; 12, first auxiliary member; 121, buckle; 2, injection mechanism; 21, infusion component; 22, injection body; 221, nozzle; 222, pressure cavity; 223, pump body; 2231, second abutting boss; 3, actuating mechanism; 31, retaining member; 311, second guide slope; 312, second stop surface; 313, recessed cavity; 314, second mounting portion; 315, first through hole; 316, groove; 317, third through hole; 3171, second protrusion; 3172, first reset guide rib; 3173, second reset guide rib; 318, third mounting portion; 3181, outward convex slope; 319, first guide groove; 32, actuating member; 321, first locking groove; 322, second locking groove; 323, outward convex structure; 324, first guide protrusion; 325, abutting surface; 326, elastic arm; 3261, pawl structure; 3262, abutting protrusion; 327, fifth limiting groove; 328, protrusion structure; 33, fifth elastic member; 41, first locking mechanism; 411, first locking component; 4111, first abutting portion; 4112, first block structure; 4113, fourth block structure; 4114, third mounting column; 4115, first clamping rib; 412, first elastic member; 42, second locking mechanism; 421, second locking component; 4211, second ratchet structure; 4212, second block structure; 4213, third block structure; 4214, fifth mounting column; 4215, second clamping rib; 422, second elastic member; 51, trigger member; 511, trigger portion; 52, guide member; 521, first guide slope; 522, first stop surface; 523, extension protrusion; 524, first limiting groove; 525, first abutting boss; 6, counting disc; 61, blocking structure; 62, notch; 63, fourth ratchet structure; 7, balancing mechanism; 71, balancing element; 711, third ratchet structure; 712, third block structure; 713, sixth block structure; 714, seventh mounting column; 72, third elastic member; 8, unlocking auxiliary mechanism; 81, first pushing member; 811, pushed portion; 812, unlocking portion; 813, connecting portion; 82, second pushing member; 821, second body portion; 822, second extension rib; 8221, pushing portion; 8222, second through hole; 8223, buckling surface; 823, second abutting rib; 8231, second abutting slope; 824, ninth mounting column; 83, second auxiliary member; 831, first body portion; 8311, recessed portion; 832, first extension rib; 8321, buckling portion; 833, first abutting rib; 8331, first protrusion; 8332, first abutting slope; 834, protruding portion; 835, eighth mounting column; 84, fourth elastic member; 91, first housing;911, first mounting column; 912, first limiting rib; 9131, second limiting groove; 9132, third limiting groove; 9133, fourth limiting groove; 9141, second limiting rib; 9142, third limiting rib; 9143, fourth limiting rib; 9151, second mounting column; 9152, fourth mounting column; 9153, sixth mounting column; 916, annular protrusion; 9161, inner recess; 917, mounting port; 92, second housing. DETAILED DESCRIPTION

[0110] In order to make the technical solutions and beneficial effects of the present application more obvious and easy to understand, the following will be described in detail by listing specific embodiments. Unless otherwise defined, the technical and scientific terms used herein have the same meaning as the technical and scientific terms in the technical field to which the present application belongs.

[0111] In the description of the present application, unless otherwise explicitly defined, the orientations or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of simplified description of the present application, and do not indicate that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, i.e. cannot be understood as limiting the present application.

[0112] In the present application, the terms "first" and "second" are only for the purpose of clear description, and cannot be understood as the relative importance of the indicated features or the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two; the meaning of "several" is at least one; except for explicit definition.

[0113] In the present application, unless otherwise explicitly defined, the terms "mounting", "connecting", "connecting", "fixing", "setting", etc. should be understood broadly. For example, "connecting" can be fixed connection, detachable connection or integral molding; can be mechanical connection or electrical connection; can be direct connection or indirect connection through intermediate medium; or can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0114] In the present application, unless otherwise explicitly defined, the first feature is "on", "over", "above" and "on top of" the second feature, "under", "below", "underneath" or "underneath" of the second feature can be that the first feature and the second feature are in direct contact, or the first feature and the second feature are in indirect contact through an intermediate medium. Moreover, the first feature is "over", "above" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than the horizontal height of the second feature. The first feature is "under", "below" and "underneath" of the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than the horizontal height of the second feature.

[0115] The "up" and "down" mentioned in the present application are based on the marks in Figure 1.

[0116] The sprayer of the present application will be described in detail below according to Figures 1 to 26.

[0117] In the present embodiment, as shown in Figures 1, 2, 3, 6, 8 and 15, the sprayer 100 comprises a container 1, a spraying mechanism 2, an actuating mechanism 3, a first locking mechanism 41 and a second locking mechanism 42, which is located on the side of the container 1 facing the holding member 31. The container 1 is a double-layer bottle, the inner layer of which is a soft film bag, and the liquid is contained in the soft film bag. The spraying mechanism 2 comprises a transfusion component 21 and a spraying body 22, the spraying body 22 comprising a nozzle 221, a pressure cavity 222 and a pump body 223. One end of the transfusion component 21 is inserted into the container 1, and the other end is movably inserted into the pump body 223 of the spraying body 22. The actuating mechanism 3 comprises a holding member 31 and an actuating member 32, the transfusion component 21 being held by the holding member 31, and the holding member 31 being movably connected to the actuating member 32. When the actuating member 32 rotates under external force, the holding member 31 drives the transfusion component 21 to move in a first direction, so that the transfusion component 21 sucks liquid from the container 1 and delivers it into the pressure cavity 222 of the spraying body 22 for temporary storage. When the transfusion component 21 moves in a second direction, the liquid in the pressure cavity 222 is sprayed out through the nozzle 221, and the first direction and the second direction are opposite.

[0118] When the number of uses of the sprayer 100 does not reach the preset value and the transfusion component 21 completes the liquid sucking, the first locking mechanism 41 locks the actuating member 32 to perform a first locking mode, which locks the actuating mechanism 3 every time the liquid sucking is completed, preventing the user from triggering the spraying by rotating the actuating member 32. When the spraying is triggered, the holding member 31 drives the transfusion component 21 to move in the second direction under external force, so that the liquid in the pressure cavity 222 is sprayed out through the nozzle 221.

[0119] Since there is no backflow gas when the infusion component 21 draws the liquid in the container 1, the soft film bag has a certain diastolic resistance to the drawing of the liquid, which is easy to cause inaccurate metering. In order to accurately meter, there needs to be sufficient residual amount in the container 1 to make the soft film bag as small as possible. When the use frequency of the sprayer 100 reaches the preset value and the infusion component 21 completes the liquid drawing, the second locking mechanism 42 locks the actuating member 32 to execute the second locking mode. At this time, the first locking mechanism 41 also simultaneously locks the actuating mechanism 3 to limit the container 1 to continue to draw the liquid, and the user can trigger the spray to complete the last use of the old container 1 in the limited use frequency. At this time, since the second locking mechanism 42 locks the actuating member 32, the user cannot continue to rotate the actuating member 32 to trigger the liquid drawing again, and the container needs to be replaced.

[0120] By adopting the above technical scheme, the first locking mechanism 41 and the second locking mechanism 42 are arranged to lock the sprayer 100 in the complete liquid drawing state during the normal use of the sprayer 100 to prevent the user from triggering the spray by rotating the actuating member 32 by mistake. The second locking mechanism 42 is arranged to lock the sprayer 100 in the complete liquid drawing state when the use frequency of the sprayer 100 reaches the preset value, and the sprayer 100 can complete the current spray in the state that the second locking mechanism 42 executes the locking, that is, the sprayer 100 can complete the last use of the container 1 in the limited use frequency. The liquid utilization rate of the container 1 is improved. For example, if the preset value of the use frequency of the sprayer 100 is 60 times, the limited use frequency of a single container 1 is 60 times, and the second locking mechanism 42 is arranged to lock the sprayer 100 in the complete liquid drawing state when the use frequency of the sprayer 100 reaches 60 times, and the sprayer 100 can complete the 60th spray of the liquid provided by the container 1. At this time, the container 1 still has sufficient residual amount but cannot be continuously used. In addition, the second locking mechanism 42 is arranged on the side of the container 1 facing the holding member 31, which can prevent the user from forcibly unlocking the second locking mechanism 42 by other tools, ensures the safety of the locking, and avoids the user from continuously using the old container 1.

[0121] In an embodiment, as shown in FIG. 1, the downward movement direction of the holding member 31 is the first direction, and the upward movement direction is the second direction. Of course, the movement direction of the holding member 31 is not limited thereto, and the holding member 31 can also move in other directions such as the front-back direction or the left-right direction.

[0122] Hereinafter, the first direction is taken as downward and the second direction is taken as upward for specific description.

[0123] In an embodiment, the sprayer 100 further comprises a first housing 91 and a second housing 92, as shown in FIG. 1, FIG. 7 and FIG. 26, the second housing 92 is rotatable relative to the first housing 91, the first housing 91 has a first mounting column 911 in the form of a hollow inside, the pump body 223 is mounted in the first mounting column 911, and the nozzle 221 is located at the upper portion of the first mounting column 911. One end of the actuating member 32 extends into the first housing 91, and the actuating member 32 is rotatably connected to the first housing 91 through the protruding structure 328 provided on the outer wall of the actuating member 32. The other end of the actuating member 32 extends into the second housing 92 and is detachably connected to the second housing 92, and the bottom of the container 1 extends into the second housing 92. When the sprayer 100 is used, the user rotates the second housing 92 to drive the actuating member 32 to rotate. When the container 1 needs to be replaced, the container 1 can be detached after the second housing 92 is removed.

[0124] In an embodiment, the actuating member 32 is not detachable from the first housing 91, as shown in FIG. 1, the second locking mechanism 42 is isolated in the first housing 91 by the actuating member 32, so that the user cannot forcibly unlock the second locking mechanism 42 by other tools.

[0125] In an embodiment, as shown in FIG. 1, the actuating mechanism 3 comprises a fifth elastic member 33, the fifth elastic member 33 is sleeved on the outer periphery of the container 1, one end of the fifth elastic member 33 abuts against the holding member 31, and the other end of the fifth elastic member 33 is limited and cannot move in the up-down direction. When the liquid suction is triggered, the holding member 31 drives the liquid delivery member 21 to move downward, and the fifth elastic member 33 is compressed; when the spraying is triggered, the fifth elastic member 33 rebounds to push the holding member 31 to drive the liquid delivery member 21 to move upward.

[0126] In an embodiment, as shown in FIG. 1, FIG. 5, FIG. 6 and FIG. 7, the actuating member 32 is sleeved on the outer periphery of the holding member 31, the outer periphery of the holding member 31 is provided with a first guide slot 319 extending in a first direction, and the inner wall of the actuating member 32 is provided with a first guide protrusion 324 movably inserted into the first guide slot 319. The sprayer 100 further comprises a guide member 52, when the actuating member 32 rotates, the holding member 31 synchronously rotates, and at the same time, the holding member 31 moves downward relative to the actuating member 32 under the guidance of the guide member 52, so that the liquid delivery member 21 moves downward to suck liquid from the container 1. Moreover, when the holding member 31 moves to the full liquid suction position, the guide member 52 also prevents the holding member 31 from moving upward.

[0127] Further, as shown in FIGS. 6, 10 and 11, the guide 52 comprises a first guide slope 521 and a first stop surface 522, and the holder 31 comprises a second guide slope 311 and a second stop surface 312; when the actuating member 32 rotates, the first guide slope 521 cooperates with the second guide slope 311 to guide the holder 31 to move in the first direction; when the holder 31 moves in the first direction to the full liquid suction position, the first stop surface 522 abuts against the second stop surface 312 in the first direction to prevent the holder 31 from moving in the second direction. Specifically, when the actuating member 32 rotates, the first guide slope 521 cooperates with the second guide slope 311 such that the second guide slope 311 slides along the first guide slope 521 to guide the holder 31 to move downward relative to the actuating member 32 while rotating with the actuating member 32. When the holder 31 moves to the second guide slope 311 disengages from the first guide slope 521, the second stop surface 312 abuts against the first stop surface 522 upward under the elastic force of the fifth elastic member 33, at this time, the infusion component 21 completes the liquid suction, the first locking mechanism 41 locks the actuating member 32, the actuating member 32 cannot continue to drive the holder 31 to rotate, and the first stop surface 522 is used to prevent the holder 31 from moving upward under the elastic force of the fifth elastic member 33.

[0128] In an embodiment, as shown in FIGS. 6 and 26, the injector 100 comprises a trigger 51, which is used to trigger the holder 31 to move in the second direction and unlock the first locking mechanism 41, but the trigger 51 cannot unlock the second locking mechanism 42. Specifically, as shown in FIGS. 6, 10, 11 and 26, the trigger 51 is a button structure, when the first locking mechanism 41 performs the first locking mode, by pressing the trigger 51, the first stop surface 522 is away from the second stop surface 312, thereby enabling the holder 31 to drive the infusion component 21 to move upward, trigger the injection, and the upward movement of the holder 31 can unlock the actuating member 32 from the first locking mechanism 41. When the second locking mechanism 42 performs the second locking mode, by pressing the trigger 51, the first stop surface 522 is away from the second stop surface 312, thereby enabling the holder 31 to drive the infusion component 21 to move upward, trigger the injection, but the upward movement of the holder 31 cannot unlock the actuating member 32 from the second locking mechanism 42. Of course, the structure of the trigger 51 is not limited to the button structure, but can also be a trigger structure or other mechanical switch structure.

[0129] Further, as shown in FIGS. 6, 7, 10 and 11, the trigger 51 is movably installed in the installation opening 917 of the first housing 91, the trigger 51 is provided with a trigger portion 511, and the guide 52 is provided with an extension protrusion 523. When the infusion component 21 completes the liquid suction, the user presses the trigger 51, the trigger portion 511 pushes the extension protrusion 523, so that the guide 52 rotates by a certain angle, and then the first abutting surface 522 rotates away from the second abutting surface 312. As shown in FIGS. 10 and 13, the guide 52 is provided with a first limiting slot 524, the first housing 91 is provided with a first limiting rib 912, the slot width of the first limiting slot 524 is greater than the width of the first limiting rib 912, the first limiting rib 912 extends into the first limiting slot 524, and the first limiting slot 524 cooperates with the first limiting rib 912 to limit the rotatable angle of the guide 52. When the actuating member 32 is rotated again to trigger the liquid suction, the second guide inclined surface 311 of the retaining member 31 will apply a pushing force to the first guide inclined surface 521 of the guide 52, the retaining member 31 and the guide 52 rotate synchronously, at this time, the guide 52 rotates to push the trigger 51 to reset, and since the retaining member 31 and the guide 52 rotate synchronously, the retaining member 31 only rotates without moving relative to the actuating member 32, when the guide 52 resets to the position where it cannot continue to rotate due to the limitation of the first limiting rib 912, the retaining member 31 rotates while moving to trigger the liquid suction.

[0130] In an embodiment, as shown in FIGS. 2, 4 and 10, the guide 52 is located above the actuating member 32, the guide 52 is arranged around the pump body 223, the inner wall of the guide 52 is provided with a first abutting boss 525, the outer wall of the pump body 223 is provided with a second abutting boss 2231, the second abutting boss 2231 abuts on the first abutting boss 525, and the bottom of the pump body 223 is located in the guide 52.

[0131] In an embodiment, as shown in FIGS. 3 and 6, the first locking mechanism 41 includes a first locking component 411 and a first elastic member 412, the first locking component 411 includes a first abutting portion 4111. When the sprayer 100 is in the initial state, under the elastic force of the first elastic member 412, the first abutting portion 4111 abuts on the retaining member 31 downward and is static. When the retaining member 31 moves downward, since the retaining member 31 moves away from the first abutting portion 4111, under the elastic force of the first elastic member 412, the first locking component 411 moves downward synchronously, and during the synchronous downward movement of the first locking component 411, the first abutting portion 4111 is always in the state of abutting on the retaining member 31. When the infusion component 21 completes the liquid suction, the first locking component 411 moves to the first locking position and locks the actuating member 32. When the trigger sprays, the first abutting portion 4111 can be pushed upward during the upward movement of the retaining member 31, so that the first locking component 411 moves away from the first locking position and is unlocked.

[0132] In an embodiment, as shown in FIG. 5, FIG. 6, FIG. 7 and FIG. 9, the actuating member 32 comprises a first locking slot 321, the first locking mechanism 41 comprises a first locking part 411, when the first locking part 411 moves downwardly with the holding member 31 to abut against the abutting surface 325 of the actuating member 32, the first locking part 411 stops moving downwardly, the actuating member 32 continues to rotate, so that the holding member 31 continues to drive the infusion part 21 to move downwardly until the infusion part 21 completes the liquid suction, at the same time, the actuating member 32 rotates to the first locking slot 321 being located below the first locking part 411, under the elastic force of the first elastic member 412, the first locking part 411 moves downwardly to the first locking rib 4115 of the first locking part 411 being clamped in the first locking slot 321, thereby locking the actuating member 32.

[0133] Further, as shown in FIG. 9, the first locking slot 321 is arranged at one end of the actuating member 32 towards the spraying body 22, and the end surface of the end constitutes the abutting surface 325.

[0134] In an embodiment, as shown in FIG. 2, FIG. 4 and FIG. 8, the second locking mechanism 42 comprises a second locking part 421 and a second elastic member 422, the sprayer 100 comprises a blocking structure 61. When the use frequency does not reach the preset value, under the elastic force of the second elastic member 422, the second locking part 421 abuts against the blocking structure 61 along the first direction, the second locking part 421 is prevented from moving to the second locking position by the blocking structure 61. When the use frequency reaches the preset value, the blocking structure 61 gives way, under the elastic force of the second elastic member 422, the second locking part 421 moves to the second locking position along the first direction, so as to lock the actuating member 32.

[0135] Further, as shown in FIG. 2, the projection of the second locking part 421 and the holding member 31 in the second direction does not overlap. In this way, when the second locking mechanism 42 performs the second locking mode, by pressing the trigger 51, the holding member 31 can drive the infusion part 21 to move along the second direction, trigger the spraying, and since the holding member 31 does not contact the second locking part 421 during the movement along the second direction, the movement of the holding member 31 cannot release the locking of the second locking mechanism 42.

[0136] In an embodiment, as shown in FIG. 2, FIG. 4 and FIG. 9, the actuating member 32 is provided with a second locking groove 322, and the first locking groove 321 and the second locking groove 322 are distributed along the circumference of the actuating member 32. When the number of uses does not reach the preset value, the second locking member 421 is not in contact with the second locking groove 322 due to the limiting of the blocking structure 61 to the second locking member 421, and during the rotation of the actuating member 32, the second locking member 421 is also not in contact with the first locking groove 321. When the number of uses reaches the preset value, the second locking member 421 moves downward under the elastic force of the second elastic member 422 to the second locking groove 322 to which the second clamping rib 4215 of the second locking member 421 is clamped, so as to perform the second locking mode.

[0137] Further, as shown in FIG. 9, the first locking groove 321 and the second locking groove 322 are both arranged at one end of the actuating member 32, and the positions of the first locking groove 321 and the second locking groove 322 are at the same height, i.e., the upper surfaces of the first locking groove 321 and the second locking groove 322 are flush, which is convenient for processing. As shown in FIG. 5 and FIG. 9, since the first locking groove 321 and the second locking groove 322 are distributed along the circumference of the actuating member 32, when the number of uses does not reach the preset value and the liquid is triggered to be sucked, the first locking member 411 moves downward to abut against the abutting surface 325 of the actuating member 32, and the first locking groove 321 and the second locking groove 322 can be limited by the difference in shape or size of the groove to avoid interference of the second locking groove 322 to the first locking member 411 during the continuous rotation of the actuating member 32. Of course, the position of the first locking member 411 when it moves downward to abut against the abutting surface 325 of the actuating member 32 can also be limited, i.e., at this time, the first locking groove 321, the first locking member 411 and the second locking groove 322 are distributed in sequence along the rotation direction of the actuating member 32, so that the first locking member 411 will not contact the second locking groove 322 during the continuous rotation of the actuating member 32, avoiding the interference of the second locking groove 322 to the first locking member 411.

[0138] Further, as shown in FIG. 6 and FIG. 9, in order to improve the stability of the locking, the number of the first locking grooves 321 is three, the number of the second locking grooves 322 is three, the first locking member 411 includes three first clamping ribs 4115 which are arranged one by one with the three first locking grooves 321, and the second locking member 421 includes three second clamping ribs 4215 which are arranged one by one with the three second locking grooves 322. Among the three first locking grooves 321, the length of the first locking groove 321 in the middle is smaller than that of the first locking grooves 321 on both sides. Among the three second locking grooves 321, the width of the second locking groove 322 in the middle is smaller than that of the second locking grooves 322 on both sides.

[0139] In an embodiment, as shown in FIG. 1, FIG. 3, FIG. 5, FIG. 6 and FIG. 9, the actuating member 32 is provided with two groups of first locking grooves 321, each group having three first locking grooves 321, the two groups of first locking grooves 321 are distributed along the radial direction of the actuating member 32, and a second locking groove 322 is located in the middle of the two groups of first locking grooves 321 and the three groups of locking grooves are equally spaced, the first locking mechanism 41 and the second locking mechanism 42 are arranged at an interval of 45° along the circumferential direction of the actuating member 32. In this way, when the number of uses does not reach the preset value, the user rotates the second shell 92 by half a turn, i.e., the second shell 92 drives the actuating member 32 to rotate by half a turn, the first locking part 411 is clamped in one of the groups of first locking grooves 321, the infusion part 21 completes the liquid suction, and then the user triggers the spraying by pressing the trigger 51. When triggering the spraying next time, the second shell 92 is rotated by half a turn again, and the first locking part 411 is clamped in another group of first locking grooves 321. When the number of uses reaches the preset value, i.e., the user triggers the liquid suction for the last time, the first locking part 411 is clamped in one of the groups of first locking grooves 321 when the second shell 92 is rotated by half a turn, and the second locking part 421 is clamped in the second locking groove 322, and the first locking mode and the second locking mode are executed at the same time.

[0140] In an embodiment, as shown in FIG. 2 and FIG. 4, the sprayer 100 further comprises a counting disc 6, the outer circumferential wall of the counting disc 6 is provided with numerical markings or scales or other markings, the first locking mechanism 41 and the second locking mechanism 42 are located above the counting disc 6, the upper end surface of the counting disc 6 is provided with a first ratchet structure and a notch 62, the first ratchet structure and the notch 62 are distributed along the circumferential direction of the counting disc 6, and the second locking part 421 is provided with a second ratchet structure 4211. When the number of uses does not reach the preset value, the second ratchet structure 4211 is engaged with the first ratchet structure under the elastic force of the second elastic member 422, so that the counting disc 6 rotates in one direction, wherein the first ratchet structure forms a blocking structure 61. When the number of uses reaches the preset value, the counting disc 6 is rotated to a position where the notch 62 is opposite to the second ratchet structure 4211 in the first direction, and the notch 62 is used to allow the second locking part 421 to move to the second locking position.

[0141] Further, as shown in FIG. 2, FIG. 7 and FIG. 8, the injector 100 further comprises a balancing mechanism 7, the balancing mechanism 7 comprising a balancing element 71 and a third elastic member 72, the balancing element 71 being provided with a third ratchet structure 711. Under the elastic force of the third elastic member 72, the third ratchet structure 711 is engaged with the first ratchet structure, and the counting disc 6 can only rotate in one direction under the ratchet action of the balancing element 71 and the second locking component 421. Among them, the size of the third ratchet structure 711 in the circumferential direction of the counting disc 6 is greater than the width of the gap 62, so that when the counting disc 6 rotates to the gap 62 below the third ratchet structure 711, the third ratchet structure 711 of the balancing element 71 will not fall into the gap 62, avoiding interfering with the normal rotation of the counting disc 6. The balancing element 71 does not have a clamping rib that can be clamped with the first locking groove 321 and the second locking groove 322, and the balancing element 71 does not have a locking function.

[0142] Further, as shown in FIG. 4 and FIG. 8, the counting disc 6 is sleeved on the outer circumference of the actuating member 32, and the second locking mechanism 42 and the balancing mechanism 7 are distributed on the two radial sides of the actuating member 32, so that the second locking component 421 and the balancing element 71 can press against the radial two sides of the upper end surface of the counting disc 6, respectively, which is conducive to the stable rotation of the counting disc 6.

[0143] In an embodiment, as shown in FIG. 6, FIG. 7, FIG. 8, FIG. 13 and FIG. 14, the first housing 91 is provided with a second limiting groove 9131, a third limiting groove 9132 and a fourth limiting groove 9133, the first locking component 411 comprises a first block structure 4112, the second locking component 421 comprises a second block structure 4212, and the balancing element 71 comprises a third block structure 712. The first block structure 4112 is movably clamped in the second limiting groove 9131, the second block structure 4212 is movably clamped in the third limiting groove 9132, and the third block structure 712 is clamped in the fourth limiting groove 9133. The first housing 91 limits the rotation of the first locking component 411, the second locking component 421 and the balancing element 71.

[0144] Further, as shown in FIG. 6, FIG. 7, FIG. 8, FIG. 13 and FIG. 14, in order to improve the stability of the assembly of the first locking component 411, the second locking component 421 and the balancing element 71 with the first housing 91, the first housing 91 is further provided with a pair of second limiting ribs 9141, a pair of third limiting ribs 9142 and a pair of fourth limiting ribs 9143, the first locking component 411 comprises a fourth block structure 4113, the second locking component 421 comprises a fifth block structure 4213, and the balancing element 71 comprises a sixth block structure 713. The fourth block structure 4113 is movably clamped between the pair of second limiting ribs 9141, the fifth block structure 4213 is movably clamped between the pair of third limiting ribs 9142, and the sixth block structure 713 is clamped between the pair of fourth limiting ribs 9143.

[0145] In an embodiment, as shown in FIG. 2, FIG. 3, FIG. 6 to FIG. 8, the first elastic member 412, the second elastic member 422 and the third elastic member 72 are all springs, one end of the first elastic member 412 is sleeved on the second mounting column 9151 on the inner wall of the first housing 91, the other end is sleeved on the third mounting column 4114 of the first locking member 411, one end of the second elastic member 422 is sleeved on the fourth mounting column 9152 on the inner wall of the first housing 91, the other end is sleeved on the fifth mounting column 4214 of the second locking member 421, one end of the third elastic member 72 is connected to the sixth mounting column 9153 on the inner wall of the first housing 91, the other end is connected to the seventh mounting column 714 of the balancing element 71.

[0146] In an embodiment, as shown in FIG. 4 and FIG. 9, the actuating member 32 is provided with an outward protruding structure 323, which is located on the abutting surface 325, the height of the outward protruding structure 323 protruding from the abutting surface 325 is about 0.5mm, and the outward protruding structure 323 and the second locking groove 322 are sequentially distributed along the rotation direction of the actuating member 32. When the second locking mechanism 42 is unlocked, if the sprayer 100 is used again, the second locking member 421 needs to be re-engaged with the counting disc 6, and due to the engagement relationship between the second locking member 421 and the counting disc 6, the lowest point of the second locking member 421 is lower than the highest point of the counting disc 6 when the second locking mechanism 42 is unlocked. In order for the counting disc 6 to rotate smoothly, the outward protruding structure 323 is arranged to lift the second locking member 421 upward during the process of rotating the actuating member 32 again after unlocking the second locking mechanism 42, so that the counting disc 6 can rotate smoothly. When the actuating member 32 rotates to the position where the outward protruding structure 323 is away from the second locking member 421, the first ratchet structure of the second locking member 421 re-engages with the counting disc 6. Moreover, during the process of lifting the second locking member 421 upward by the outward protruding structure 323, the balancing element 71 still maintains engagement with the counting disc 6, which can prevent the occurrence of the situation of skipping teeth.

[0147] In an embodiment, when the counting disc 6 is in the engaged state with the actuating member 32, the actuating member 32 can drive the counting disc 6 to rotate for counting. When the counting disc 6 is in the unengaged state with the actuating member 32, the actuating member 32 can rotate independently of the counting disc 6, so as to ensure that the counting disc 6 has a larger counting capacity.

[0148] As shown in FIG. 7, the actuating member 32 is provided with an elastic arm 326, the elastic arm 326 is provided with a pawl structure 3261 and an abutting protrusion 3262, the pawl structure 3261 and the abutting protrusion 3262 are arranged in the first direction. As shown in FIG. 14, the inner wall of the first housing 91 is provided with an annular protrusion 916, the annular protrusion 916 is provided with an inner recess 9161, as shown in FIG. 8, the inner wall of the counting disc 6 is provided with a fourth ratchet structure 63, the elastic arm 326 partially extends into the inner wall of the counting disc 6. When the actuating member 32 rotates to the abutting protrusion 3262 extends into the inner recess 9161, the elastic arm 326 is in the initial state, the pawl structure 3261 is engaged with the fourth ratchet structure 63, at this time, the counting disc 6 is in the cooperating state with the actuating member 32, the counting disc 6 counts along with the rotation of the actuating member 32. When the actuating member 32 rotates to the abutting protrusion 3262 abuts against the annular protrusion 916, the groove wall of the annular protrusion 916 presses the abutting protrusion 3262 radially inward, forcing the elastic arm 326 to deform inward, and then making the pawl structure 3261 away from the fourth ratchet structure 63, at this time, the counting disc 6 is in the uncooperating state with the actuating member 32, the counting disc 6 does not rotate along with the actuating member 32.

[0149] In an embodiment, the new container 1 is configured to be able to unlock the second locking mechanism 42, and the old container 1 is configured to be unable to unlock the second locking mechanism 42. The new container 1 is used as an unlocking key, and the user must install the new container 1 to continue using the sprayer 100.

[0150] In an embodiment, as shown in FIGS. 1 and 2, the sprayer 100 further comprises an unlocking auxiliary mechanism 8, the unlocking auxiliary mechanism 8 comprises a first pushing member 81. As shown in FIG. 17, when the second locking mechanism 42 locks the actuating mechanism 3, if the container 1 is replaced, as shown in FIG. 19, during the installation of the new container 1, the moving new container 1 can push the first pushing member 81 to move to the unlocking position in the second direction, the first pushing member 81 pushes the second locking part 421 away from the second locking position during the movement, achieving unlocking, and if the old container 1 is reinstalled, the moving old container 1 cannot push the first pushing member 81 to move to the unlocking position. By limiting the structural difference between the new container 1 and the old container 1, it is ensured that the user cannot continue to use the old container 1 when the number of uses reaches the preset value.

[0151] Further, as shown in FIGS. 2 and 19, the unlocking auxiliary mechanism 8 further comprises a second pushing member 82. When the new container 1 is replaced, the moving new container 1 can push the second pushing member 82 in the second direction, and the second pushing member 82 pushes the first pushing member 81 to move to the unlocking position. In this scheme, the pushing members for unlocking assistance are configured as two parts, which facilitates the assembly of the unlocking auxiliary mechanism 8 in the limited space inside the sprayer 100.

[0152] In an embodiment, as shown in FIG. 2, the first pushing piece 81 is installed on the actuating piece 32, and the second pushing piece 82 is installed on the holding piece 31, which is conducive to compact structure. Specifically, as shown in FIG. 2, FIG. 9 and FIG. 22, the actuating piece 32 is provided with a fifth limiting slot 327 which is located below a second locking slot 322 and communicates with the second locking slot 322, and the first pushing piece 81 is provided with a pushed part 811, an unlocking part 812 and a connecting part 813, the pushed part 811 and the unlocking part 812 are connected with the connecting part 813 respectively, and the unlocking part 812 is at least partially located in the fifth limiting slot 327. As shown in FIG. 17 and FIG. 19, when the second locking mechanism 42 locks the actuating piece 32 and a new container 1 is loaded, the new container 1 pushes the second pushing piece 82 upward, the second pushing piece 82 pushes the pushed part 811 of the first pushing piece 81 upward, and the unlocking part 812 pushes the second locking part 421 upward, so that the second locking part 421 releases the locking of the actuating piece 32.

[0153] In an embodiment, as shown in FIG. 1, the container 1 comprises a container body 11 and a first auxiliary piece 12 which is movably connected to the container body 11. As shown in FIG. 15, when the container 1 is not activated, the first auxiliary piece 12 is in a first position. As shown in FIG. 15 and FIG. 19, when a new container 1 is loaded, the second pushing piece 82 abuts against the first auxiliary piece 12 in a first direction. As shown in FIG. 16 and FIG. 24, during the first spraying after the new container 1 is loaded, the first auxiliary piece 12 moves to a second position under the abutting pressure of the second pushing piece 82 in the first direction, so that the container 1 becomes an old container 1. By the change of the position of the first auxiliary piece 12 in the first direction, the difference in structural configuration between the new container 1 and the old container 1 is formed.

[0154] Further, as shown in FIG. 15, the container body 11 comprises a cover 111 and a body 112, the cover 111 is mounted on the body 112, and the cover 111 and the body 112 can be detachably connected (such as buckling), or can be fixed by heat pressing, or can be integrally formed. The cover 111 is open at least to one side of the holding member 31, and the cover 111 is provided with a first mounting portion 1111 and a cavity 1112 which are sequentially distributed in the first direction. As shown in FIG. 15, when the first auxiliary member 12 is in the first position, the first auxiliary member 12 is detachably connected to the first mounting portion 1111. As shown in FIG. 16, when the first auxiliary member 12 is in the second position, the first auxiliary member 12 is located in the cavity 1112. Specifically, as shown in FIGS. 19 and 24, in the process of the first spraying after the new container 1 is loaded, the first auxiliary member 12 is disconnected from the first mounting portion 1111 under the downward pressure of the second pushing member 82, and then can fall into the cavity 1112 under its own gravity or move into the cavity 1112 under the pressure of the second pushing member 82. In this scheme, the force exerted by the second pushing member 82 on the first auxiliary member 12 is greater than the separation force of the first mounting portion 1111 and the first auxiliary member 12, so that the new container 1 can be changed into the old container 1 in the process of the first spraying after the new container 1 is loaded. It should be understood that if the old container 1 is reloaded, the first auxiliary member 12 in the second position cannot contact the second pushing member 82, or the first auxiliary member 12 in the second position can contact the second pushing member 82, but the distance of moving the second pushing member 82 upward is not enough to unlock the second locking mechanism 42 by pushing the first pushing member 81.

[0155] Further, as shown in FIG. 15, the cover 111 is sleeved on one end of the body 112, both ends of the cover 111 are open, the cavity 1112 is formed between the first mounting portion 1111 and the end of the body 112, and the container body 11 is simple in structure and convenient to process.

[0156] Further, as shown in FIG. 15, the first mounting portion 1111 and the first auxiliary member 12 are buckled, which is convenient to assemble and disassemble. Specifically, the inner wall of the cover 111 is provided with a buckle groove which constitutes the first mounting portion 1111, and the outer wall of the first auxiliary member 12 is provided with a buckle 121, and when the first auxiliary member 12 is in the first position, the buckle 121 is buckled to the first mounting portion 1111.

[0157] Further, the first auxiliary member 12 is a plug.

[0158] In an embodiment, as shown in FIG. 3, FIG. 11 and FIG. 12, the holder 31 is provided with the concave cavity 313 and the second mounting portion 314 which are sequentially distributed along the first direction, and the container 1 is detachably connected to the second mounting portion 314, which can be a buckle. As shown in FIG. 19 and FIG. 24, when the sprayer 100 is in the initial state, the holder 31 is in the upper limit position, at this time, the guide 52 is at least partially located in the concave cavity 313 and the bottom surface of the guide 52 abuts against the bottom wall of the concave cavity 313.

[0159] As shown in FIG. 24, when the second locking mechanism 42 locks the actuating member 32 and the spraying is completed, the sprayer 100 returns to the initial state, the holder 31 is in the upper limit position, and the bottom surface of the holder 31 abuts against the bottom wall of the concave cavity 313. In the subsequent process of replacing the new container 1, the movable space of the second pushing member 82 is limited by the distance between the bottom surface of the holder 31 and the container 1, and in the process of the first spraying after the new container 1 is loaded, the second pushing member 82 needs to push the first auxiliary member 12 downward to change the new container 1 into the old container 1, and other components need to exert a downward force on the second pushing member 82. Therefore, in the present scheme, as shown in FIG. 1 and FIG. 2, the unlocking auxiliary mechanism 8 further comprises a second auxiliary member 83, the second auxiliary member 83 is movably connected to the holder 31, the second pushing member 82 is movably connected to the second auxiliary member 83, the second auxiliary member 83 is partially located in the concave cavity 313, and the position change between the second auxiliary member 83 and the second pushing member 82 meets the requirements that the second pushing member 82 can push the first pushing member 81 upward to the unlocking position, and the first auxiliary member 12 can be pushed from the first position to the second position by the second pushing member 82 in the process of the first spraying after the new container 1 is loaded.

[0160] Further, as shown in FIG. 2, the unlocking auxiliary mechanism 8 further comprises a fourth elastic member 84, one end of the fourth elastic member 84 is sleeved with the eighth mounting column 835 of the second auxiliary member 83, and the other end is sleeved with the ninth mounting column 824 of the second pushing member 82.

[0161] As shown in FIG. 17 and FIG. 18, when the old container 1 is removed, the last spraying in the limited number of times of use of the old container 1 is completed, one end of the guide 52 extends into the concave cavity 313 and abuts downward against the second auxiliary member 83, the second auxiliary member 83 is in the first lower limit position, and the second pushing member 82 is in the second lower limit position under the elastic force of the fourth elastic member 84.

[0162] As shown in FIGS. 19-21, when a new container 1 is loaded, the first auxiliary member 12 pushes the second pushing member 82 upward, the second pushing member 82 pushes the first pushing member 81 upward to unlock the second locking mechanism 42, and the fourth elastic member 84 is compressed upward by the second pushing member 82. During the process, the second auxiliary member 83 does not move and remains in the first lower limit position because the second auxiliary member 83 is abutted downward by the guide member 52. When the new container 1 is assembled, the second pushing member 82 is in the second upper limit position, and the second auxiliary member 83 is disconnected from the second pushing member 82 and connected only by the fourth elastic member 84.

[0163] As shown in FIGS. 22 and 23, during the first triggering of the liquid suction after the new container 1 is loaded, the holding member 31 moves the second auxiliary member 83, the second pushing member 82, the container 1 and the infusion component 21 downward synchronously. At this time, the second auxiliary member 83 moves upward relative to the second pushing member 82 under the rebound force of the fourth elastic member 84 because the second auxiliary member 83 is away from the guide member 52. During the process, the second pushing member 82 remains in the second upper limit position because the second auxiliary member 83 is disconnected from the second pushing member 82. When the second auxiliary member 83 moves to be reconnected with the second pushing member 82, the second auxiliary member 83 stops moving. At this time, the second auxiliary member 83 is in the second upper limit position.

[0164] As shown in FIG. 24, during the first triggering of the liquid injection after the new container 1 is loaded, the holding member 31 moves the second auxiliary member 83, the second pushing member 82, the container 1 and the infusion component 21 upward synchronously. The second auxiliary member 83 moves to abut against the guide member 52 and stops moving. The holding member 31 continues to move the container body 11 upward. The first auxiliary member 12 moves downward to the second position under the abutting pressure of the second pushing member 82. The new container 1 becomes the old container 1.

[0165] Further, as shown in FIGS. 2, 11, 17 and 25, the second auxiliary member 83 comprises a first main body part 831 and two first extension ribs 832 connected with each other. The holding member 31 is provided with two first through holes 315, and the two first extension ribs 832 are arranged one by one corresponding to the two first through holes 315. The first main body part 831 is located in the recessed cavity 313, and the first extension rib 832 passes through the corresponding first through hole 315. The second pushing member 82 is located on the side of the holding member 31 facing the container 1. The second pushing member 82 comprises a second main body part 821 and two second extension ribs 822 connected with each other. The two second extension ribs 822 are arranged one by one corresponding to the two first extension ribs 832. The second extension rib 822 is movably connected to the corresponding first extension rib 832. The second main body part 821 is used to abut against the first auxiliary member 12. It should be understood that the number of the first extension rib 832, the first through hole 315 and the second extension rib 822 is not limited to two, but can be three or more, as long as they are arranged one by one.

[0166] Further, as shown in FIG. 19 and FIG. 25, the second extension rib 822 is provided with a pushing portion 8221, and the pushing portion 8221 of one of the second extension ribs 822 is opposite to the first pushing piece 81 in the second direction, and the pushing portion 8221 is used to push the first pushing piece 81 to move to the unlocking position. In this scheme, in order to simplify the processing, the two second extension ribs 822 are the same structure, and are both provided with the pushing portion 8221, and of course, only one second extension rib 822 can be provided with the pushing portion 8221.

[0167] Further, as shown in FIG. 2 and FIG. 11, the outer wall of the retaining piece 31 is provided with a groove 316 extending in the second direction, and the first pushing piece 81 is provided with a pushed portion 811, and the pushing portion 8221 and the pushed portion 811 are sequentially arranged in the groove 316 in the second direction, and the groove 316 is used to limit the rotation of the first pushing piece 81 and the second pushing piece 82, that is, the first pushing piece 81 and the second pushing piece 82 can only move in the up-down direction.

[0168] In an embodiment, as shown in FIG. 2 and FIG. 25, the first extension rib 832 is provided with a buckling portion 8321, the second extension rib 822 is a bent structure and is provided with a second through hole 8222 and a buckling surface 8223 connected with each other, and the first extension rib 832 extends into the second through hole 8222.

[0169] When the old container 1 is removed, the first main body portion 831 abuts against the cavity wall of the recessed cavity 313 under the pressing of the guide 52, the buckling portion 8321 buckles on the buckling surface 8223, the second auxiliary piece 83 is in the first lower limit position, and the second pushing piece 82 is in the second lower limit position.

[0170] When the new container 1 is installed, under the pressing force of the first auxiliary piece 12, the second pushing piece 82 moves upward, the buckling surface 8223 is separated from the buckling portion 8321, that is, the connection between the second auxiliary piece 83 and the second pushing piece 82 is disconnected. When the new container 1 is assembled, the second auxiliary piece 83 is still in the first lower limit position, and the second pushing piece 82 moves to the second upper limit position.

[0171] In the first triggering of the liquid suction process after the new container 1 is installed, under the rebounding force of the fourth elastic piece 84, the second auxiliary piece 83 moves upward and stops moving when the buckling portion 8321 buckles on the buckling surface 8223 again. When the liquid suction is completed, the second auxiliary piece 83 is in the second upper limit position, and the second pushing piece 82 is still in the second upper limit position.

[0172] Further, as shown in FIG. 11, FIG. 18 and FIG. 25, the second auxiliary piece 83 further comprises two first abutting ribs 833 provided with first protrusions 8331; the retaining piece 31 is provided with two third through holes 317 provided with second protrusions 3171, the first abutting ribs 833 are one-to-one inserted into the third through holes 317, and the outer wall of the first abutting ribs 833 abuts against the second protrusions 3171. The second pushing piece 82 comprises two second abutting ribs 823 which are one-to-one arranged with the first abutting ribs 833. It should be understood that the number of the three structures of the first abutting ribs 833, the third through holes 317 and the second abutting ribs 823 is not limited to two, but can be three or more, as long as they are one-to-one arranged.

[0173] As shown in FIG. 18, when the old container 1 is removed, the projection of the second abutting ribs 823 in the second direction falls on the first main body 831, that is, the projection of the first abutting ribs 833 and the corresponding second abutting ribs 823 in the first direction does not coincide, and the second abutting ribs 823 are completely located on the inner side of the first abutting ribs 833. Since the first auxiliary piece 12 of the new container 1 is buckled to the first mounting portion 1111 of the container body 11, the buckling is firm, and the second auxiliary piece 83 is difficult to drive the second pushing piece 82 to push the first auxiliary piece 12 from the first position to the second position by the fourth elastic piece 84 alone. Therefore, in the present scheme, as shown in FIG. 23, during the first triggering of the liquid in the process of loading the new container 1, the second auxiliary piece 83 moves upward until the first protrusions 8331 are inwardly pressed by the second protrusions 3171, so that the first abutting ribs 833 are deformed in the direction towards the inner side, and the projection of the first abutting ribs 833 and the corresponding second abutting ribs 823 in the first direction at least partially coincides. In this way, during the first triggering of the spray in the process of loading the new container 1, the first abutting ribs 833 can abut on the second abutting ribs 823 in the downward direction, so that the first abutting ribs 833 can push the second abutting ribs 823 to move downward, and then the second pushing piece 82 pushes the first auxiliary piece 12 from the first position to the second position.

[0174] Further, as shown in FIG. 11, FIG. 12 and FIG. 23, the holder 31 is provided with a third mounting portion 318, and the infusion component 21 is connected to the third mounting portion 318; an outer wall of the third mounting portion 318 constitutes a side hole wall of a third through hole 317, the third mounting portion 318 penetrates through the second auxiliary piece 83 and the second pushing piece 82, and an outer wall of the third mounting portion 318 is provided with two outer convex inclined surfaces 3181 which are inclined outwardly along the second direction and are arranged one by one corresponding to the second abutting ribs 823. During the process of loading the new container 1, the new container 1 pushes the second pushing piece 82 to move upwardly, the second abutting ribs 823 are extruded outwardly by the corresponding outer convex inclined surfaces 3181 to deform, which can increase the projection overlapping area of the first abutting ribs 833 and the corresponding second abutting ribs 823 in the first direction, and is beneficial to stably push the second abutting ribs 823 downwardly by the first abutting ribs 833. In addition, since the third mounting portion 318 penetrates through the second auxiliary piece 83 and the second pushing piece 82, in order to stably match the second auxiliary piece 83 and the second pushing piece 82, the number of the fourth elastic pieces 84 is two or more and is arranged in a circumferential array.

[0175] In an embodiment, as shown in FIG. 17 and FIG. 18, a side of the first body portion 831 away from the first abutting ribs 833 is provided with two recessed portions 8311 which are arranged one by one corresponding to the two first abutting ribs 833, and the recessed portions 8311 are arranged to form a weak point on the first body portion 831, which is beneficial to the deformation of the first abutting ribs 833 inwardly.

[0176] Further, as shown in FIG. 17 to FIG. 19, a side surface of the first body portion 831 towards the guide 52 is provided with two convex portions 834 which are arranged one by one outside the recessed portions 8311. During the process of the first time triggering the injection after loading the new container 1, the holder 31 drives the second auxiliary piece 83, the second pushing piece 82, the container 1 and the infusion component 21 to move upwardly synchronously, when the second auxiliary piece 83 at the first upper limit position moves to abut against the bottom surface of the guide 52, since the holder 31 continues to drive the container 1 to move upwardly, the convex portions 834 are extruded downwardly along the guide 52, and the convex portions 834 cooperate with the recessed portions 8311 to increase the deformation amount of the first abutting ribs 833 inwardly, which is beneficial to the deformation of the first abutting ribs 833 inwardly.

[0177] In an embodiment, as shown in FIG. 23 and FIG. 25, the first abutting rib 833 is provided with a first abutting slope 8332 at one end thereof facing the second pusher 82, and the second abutting rib 823 is provided with a second abutting slope 8231 at one end thereof facing the second auxiliary piece 83, and the first abutting slope 8332 is inclined towards the downward direction from the outside to the inside. During the process that the first abutting rib 833 pushes the second abutting rib 823 to move in the first direction, the first abutting slope 8332 and the second abutting slope 8231 abut. In this scheme, the configuration of the two slopes of the first abutting slope 8332 and the second abutting slope 8231 is conducive to the stable abutment of the first abutting rib 833 and the second abutting rib 823.

[0178] In an embodiment, as shown in FIG. 12, FIG. 18 and FIG. 23, the third through hole 317 is provided with a first reset guide rib 3172 and a second reset guide rib 3173. During the first triggering of the ejection after the new container 1 is installed, after the first auxiliary piece 12 of the new container 1 is separated from the first mounting portion 1111 under the pushing of the second pusher 82, the first abutting rib 833 continues to move downwards along the surface of the first reset guide rib 3172, and the outer contour shape of the first reset guide rib 3172 guides the first abutting rib 833 to recover the deformation outwardly; the second abutting rib 823 continues to move downwards along the surface of the second reset guide rib 3173, and the outer contour shape of the second reset guide rib 3173 guides the second abutting rib 823 to recover the deformation inwardly.

[0179] Further, as shown in FIG. 21, when the new container 1 is assembled, the second main body portion 821 abuts upwardly on the second reset guide rib 3173, that is, the second reset guide rib 3173 also serves to limit the second upper limit position of the second main body portion 821.

[0180] It should be understood that herein, the “first upper limit position” and the “first lower limit position” of the second auxiliary piece 83, and the “second upper limit position” and the “second lower limit position” of the second pusher 82 are all with reference to the retainer 31.

[0181] It should be understood that herein, “complete liquid suction” refers to the state of the sprayer 100 when the sprayer 100 completes a metered liquid suction.

[0182] It should be understood that in order to ensure that the above transmission relationship can be stably executed, the elastic force of the fifth elastic piece 33 is greater than the separation force at the connection between the retainer 31 and the container 1, the separation force at the connection between the retainer 31 and the container 1 is greater than the separation force at the connection between the first auxiliary piece 12 in the first position and the cover 111, and the separation force at the connection between the first auxiliary piece 12 in the first position and the cover 111 is greater than the elastic force of the fourth elastic piece 84 and the second elastic piece 422 respectively.

[0183] It should be understood that the above examples are exemplary and are not intended to limit the scope of the claims encompassing all possible embodiments. Various modifications and changes can also be made on the basis of the above examples without departing from the scope of the present disclosure. Similarly, various technical features of the above examples can be combined arbitrarily to form additional embodiments of the present application that can not be explicitly described. Therefore, the above examples merely express several embodiments of the present application and do not limit the scope of protection of the present patent.

Claims

1. An injector characterized by, The ejector (100) comprises: a container (1) for containing liquid; an ejecting mechanism (2) comprising a liquid delivery component (21); an actuating mechanism (3) comprising a holding member (31) for holding the liquid delivery component (21) and being movably connected to an actuating member (32); when the actuating member (32) rotates, the holding member (31) drives the liquid delivery component (21) to move in a first direction so that the liquid delivery component (21) sucks liquid from the container (1); a first locking mechanism (41) for locking the actuating member (32) to perform a first locking mode when the number of uses of the ejector (100) does not reach a preset value and the liquid delivery component (21) finishes sucking liquid; a second locking mechanism (42) located on a side of the container (1) facing the holding member (31), for locking the actuating member (32) to perform a second locking mode when the number of uses of the ejector (100) reaches the preset value and the liquid delivery component (21) finishes sucking liquid; In both locking modes, the holding member (31) can drive the liquid delivery component (21) to move in a second direction under an external force to trigger ejection; the first direction and the second direction are opposite.

2. The injector of claim 1, wherein A new container (1) is configured to unlock the second locking mechanism (42), and an old container (1) is configured to be unable to unlock the second locking mechanism (42).

3. The injector of claim 1, wherein The ejector (100) further comprises a trigger member (51) for triggering the holding member (31) to move in the second direction and unlocking the first locking mechanism (41), but being unable to unlock the second locking mechanism (42).

4. The injector of claim 3, wherein The first locking mechanism (41) comprises a first locking component (411) and a first elastic member (412), and the first locking component (411) comprises a first abutting portion (4111); When the ejector (100) is in an initial state, under the elastic force of the first elastic member (412), the first abutting portion (4111) abuts against the holding member (31) in the first direction; When the holding member (31) moves in the first direction, under the elastic force of the first elastic member (412), the first locking component (411) moves in the first direction; When the liquid delivery component (21) finishes sucking liquid, the first locking component (411) moves to a first locking position and locks the actuating member (32); When the holding member (31) moves in the second direction, the holding member (31) can push the first abutting portion (4111) to make the first locking component (411) unlock.

5. The injector according to any one of claims 1-4, characterized in that The second locking mechanism (42) comprises a second locking component (421) and a second elastic member (422), and the ejector (100) comprises a blocking structure (61); When the number of uses does not reach the preset value, the second locking component (421) abuts against the blocking structure (61) in the first direction under the elastic force of the second elastic member (422); When the number of uses reaches the preset value, the blocking structure (61) is allowed to pass, and the second locking component (421) moves to the second locking position in the first direction under the elastic force of the second elastic member (422), so as to lock the actuating member (32).

6. The injector of claim 5, wherein When the second locking mechanism (42) executes the second locking mode, the holding member (31) drives the infusion component (21) to move in the second direction by pressing the trigger (51), so as to trigger the ejection; The projection of the second locking component (421) and the holding member (31) in the second direction does not overlap; The holding member (31) does not contact the second locking component (421) during the movement in the second direction, and the movement of the holding member (31) cannot release the locking of the second locking mechanism (42).

7. The injector of claim 5 wherein, The ejection device (100) further comprises a counting disc (6) provided with a first ratchet structure and a gap (62), and the second locking component (421) is provided with a second ratchet structure (4211); When the number of uses does not reach the preset value, the second ratchet structure (4211) is engaged with the first ratchet structure under the elastic force of the second elastic member (422), and the first ratchet structure forms the blocking structure (61); When the number of uses reaches the preset value, the counting disc (6) rotates to the position where the gap (62) and the second ratchet structure (4211) are opposite in the first direction, and the gap (62) is used to allow the second locking component (421) to move to the second locking position.

8. The injector of claim 7, wherein, The ejection device (100) further comprises a balancing mechanism (7) including a balancing element (71) and a third elastic member (72), and the balancing element (71) is provided with a third ratchet structure (711); The third ratchet structure (711) is engaged with the first ratchet structure under the elastic force of the third elastic member (72), and the size of the third ratchet structure (711) in the circumferential direction of the counting disc (6) is greater than the width of the gap (62).

9. The injector of claim 8, wherein, The counting disc (6) is sleeved on the outer periphery of the actuating member (32), and the second locking mechanism (42) and the balancing mechanism (7) are respectively distributed on the two radial sides of the actuating member (32).

10. The injector of claim 7, wherein, The actuating member (32) is provided with a first locking groove (321) and a second locking groove (322), and the first locking groove (321) and the second locking groove (322) are distributed in the circumferential direction of the actuating member (32) and are spaced apart from each other; The first locking mechanism (41) comprises a first locking component (411), and the first locking component (411) is engaged with the first locking groove (321) in the first direction to execute the first locking mode; The second locking component (421) is engaged with the second locking groove (322) in the first direction to execute the second locking mode.

11. The injector of claim 10, wherein, The actuating member (32) is provided with an outward protruding structure (323), which and the second locking groove (322) are sequentially distributed along the rotation direction of the actuating member (32); When the second locking mechanism (42) is unlocked, the outward protruding structure (323) is used to lift the second locking part (421) during the rotation of the actuating member (32) again, so that the counting disc (6) is smoothly rotated to reengage with the first ratchet structure.

12. The injector according to any one of claims 1-4, wherein, The sprayer (100) further comprises a first housing (91), the actuating member (91) is rotatably connected to the first housing (91), and the second locking mechanism (42) is isolated in the first housing (91) by the actuating member (91).

13. The injector of claim 5 wherein, The sprayer (100) further comprises an unlocking auxiliary mechanism (8), which comprises a first pushing member (81); When the second locking mechanism (42) locks the actuating member (32), if a new container (1) is replaced, the new container (1) is configured to be able to push the first pushing member (81) to move to an unlocking position in a second direction, the first pushing member (81) pushes the second locking part (421) away from the second locking position to achieve unlocking; if an old container (1) is installed, the old container (1) is configured to be unable to push the first pushing member (81) to move to the unlocking position.

14. The injector of claim 13, wherein, The unlocking auxiliary mechanism (8) further comprises a second pushing member (82); When a new container (1) is replaced, the new container (1) is configured to be able to push the second pushing member (82) in a second direction, so that the second pushing member (82) pushes the first pushing member (81) to move to an unlocking position.

15. The injector of claim 14, wherein, The container (1) comprises a container body (11) and a first auxiliary member (12), and the first auxiliary member (12) is movably connected to the container body (11); When the container (1) is not activated, the first auxiliary member (12) is in a first position; When a new container (1) is installed, the second pushing member (82) abuts against the first auxiliary member (12) in a first direction; During the first spraying after the new container (1) is installed, the first auxiliary member (12) is moved to a second position under the pressing of the second pushing member (82) in a first direction, so that the container (1) becomes an old container (1).

16. The injector of claim 15, wherein The container body (11) comprises a cover body (111) and a body (112), and the cover body (111) is installed on the body (112); The cover body (111) is open at least to one side of the retaining member (31), and the cover body (111) is provided with a first mounting part (1111) and a cavity (1112) sequentially distributed in a first direction; When the first auxiliary member (12) is in the first position, the first auxiliary member (12) is detachably connected to the first mounting part (1111); When the first auxiliary member (12) is in the second position, the first auxiliary member (12) is located in the cavity (1112).

17. The injector of claim 16, wherein, The cover (111) is sleeved on one end of the body (112), and the first mounting portion (1111) and the end of the body (112) form the cavity (1112).

18. The injector of claim 15 wherein, The ejector (100) further comprises a guide (52); When the actuating member (32) rotates, the guide (52) guides the holding member (31) to move in a first direction; When the holding member (31) moves in the first direction to a full liquid suction position, the guide (52) prevents the holding member (31) from moving in a second direction.

19. The injector of claim 18, wherein, The holding member (31) is provided with concave cavities (313) and second mounting portions (314) distributed in the first direction in sequence, and the container (1) is detachably connected to the second mounting portions (314); The unlocking auxiliary mechanism (8) further comprises a second auxiliary member (83) movably connected to the holding member (31), and the second pushing member (82) is movably connected to the second auxiliary member (83), and the second auxiliary member (83) is partially located in the concave cavity (313).

20. The injector of claim 19, wherein, The unlocking auxiliary mechanism (8) further comprises a fourth elastic member (84) connected to the second auxiliary member (83) and the second pushing member (82) respectively; When the old container (1) is removed, one end of the guide (52) extends into the concave cavity (313) and abuts against the second auxiliary member (83) in the first direction; When the new container (1) is installed, the first auxiliary member (12) pushes the second pushing member (82) in the second direction to unlock the second locking mechanism (42), and the fourth elastic member (84) is compressed; During the first time of triggering liquid suction after the new container (1) is installed, the fourth elastic member (84) rebounds to make the second auxiliary member (83) move in the second direction relative to the second pushing member (82); During the first time of triggering ejection after the new container (1) is installed, the second auxiliary member (83) moves to abut against the guide (52), the holding member (31) drives the container body (11) to continue to move in the first direction, and the first auxiliary member (12) moves to a second position in the second direction under the pressing of the second pushing member (82).

21. The injector of claim 20, wherein, The second auxiliary member (83) comprises a first body portion (831) and a plurality of first extension ribs (832) connected to each other; the holding member (31) is provided with a first through hole (315), the first body portion (831) is located in the concave cavity (313), and the first extension ribs (832) pass through the first through hole (315); The second pushing member (82) is located on a side of the holding member (31) facing the container (1), and the second pushing member (82) comprises a second body portion (821) and a plurality of second extension ribs (822) connected to each other, the second extension ribs (822) are movably connected to the first extension ribs (832), and the second body portion (821) abuts against the first auxiliary member (12).

22. The injector of claim 21, wherein, At least one of the second extending ribs (822) is provided with a pushing part (8221) which is opposite to the first pushing piece (81) in the second direction, and the pushing part (8221) is used to push the first pushing piece (81) to move to the unlocking position.

23. The injector of claim 22, wherein, The outer wall of the holding piece (31) is provided with a groove (316) extending in the second direction, and the first pushing piece (81) is provided with a pushed part (811), and the pushing part (8221) and the pushed part (811) are sequentially arranged in the groove (316) in the second direction.

24. The injector of claim 21, wherein, The first extending rib (832) is provided with a buckling part (8321), the second extending rib (822) is in a bending structure and is provided with a second through hole (8222) and a buckling surface (8223) connected with each other, and the first extending rib (832) extends into the second through hole (8222); When the old container (1) is removed, the first main body part (831) abuts against the cavity wall of the recessed cavity (313) under the pressing of the guide (52), and the buckling part (8321) buckles the buckling surface (8223); When the new container (1) is installed, the second pushing piece (82) moves in the second direction under the pressing force of the first auxiliary piece (12), and the buckling surface (8223) is separated from the buckling part (8321); In the process of triggering the liquid suction for the first time after the new container (1) is installed, the second auxiliary piece (83) moves in the second direction to the buckling part (8321) under the rebounding force of the fourth elastic piece (84), and the buckling part (8321) buckles the buckling surface (8223) again.

25. The injector of claim 21, wherein, The second auxiliary piece (83) further comprises a plurality of first abutting ribs (833), and the first abutting ribs (833) are provided with first protrusions (8331); the holding piece (31) is provided with a plurality of third through holes (317), and the third through holes (317) are provided with second protrusions (3171), the first abutting ribs (833) extend into the third through holes (317) one by one, and the outer walls of the first abutting ribs (833) abut against the second protrusions (3171), and the second pushing piece (82) comprises a plurality of second abutting ribs (823), and the second abutting ribs (823) and the first abutting ribs (833) are arranged one by one; When the old container (1) is removed, the projections of the second abutting ribs (823) in the second direction all fall on the first main body part (831); In the process of triggering the liquid suction for the first time after the new container (1) is installed, the second auxiliary piece (83) moves in the second direction to the first protrusions (8331) which are pressed inward by the second protrusions (3171), so that the first abutting ribs (833) are deformed inward, and then the projections of the first abutting ribs (833) and the corresponding second abutting ribs (823) in the first direction at least partially coincide; In the process of triggering the spray for the first time after the new container (1) is loaded, the first abutting rib (833) pushes the second abutting rib (823) to move in the first direction, so that the second pushing piece (82) pushes the first auxiliary piece (12) to the second position.

26. The injector of claim 25, wherein, The holding piece (31) is provided with a third mounting portion (318), and the infusion component (21) is connected to the third mounting portion (318); an outer wall of the third mounting portion (318) forms a side hole wall of the third through hole (317), and the outer wall of the third mounting portion (318) is provided with a plurality of outward convex inclined surfaces (3181) that are inclined outward in a second direction, and the outward convex inclined surfaces (3181) are arranged one by one in correspondence with the second abutting ribs (823); In the process of loading the new container (1), the second pushing piece (82) moves in the second direction, and the second abutting rib (823) is extruded outward by the corresponding outward convex inclined surface (3181) to be deformed.

27. The injector of claim 25 wherein, The first main body portion (831) is provided on one side facing away from the first abutting rib (833) with a plurality of recessed portions (8311) that are arranged one by one in correspondence with the first abutting ribs (833).

28. The injector of claim 27, wherein, The first main body portion (831) is provided on one side surface facing the guide piece (52) with a plurality of protruding portions (834) that are arranged one by one on the outer side of the recessed portions (8311); When the protruding portions (834) are extruded in the first direction, the protruding portions (834) cooperate with the recessed portions (8311) to increase the deformation amount of the first abutting rib (833) inward.

29. The injector of claim 26 wherein, The first abutting rib (833) is provided at one end facing the second pushing piece (82) with a first abutting inclined surface (8332), and the second abutting rib (823) is provided at one end facing the second auxiliary piece (83) with a second abutting inclined surface (8231), and the first abutting inclined surface (8332) is inclined in the first direction from the outer side to the inner side; In the process of the first abutting rib (833) pushing the second abutting rib (823) to move in the first direction, the first abutting inclined surface (8332) and the second abutting inclined surface (8231) abut.

30. The injector of claim 26 wherein, The third through hole (317) is provided with a first reset guide rib (3172) and a second reset guide rib (3173); In the process of triggering the spray for the first time after the new container (1) is loaded, the first reset guide rib (3172) is used to guide the first abutting rib (833) to recover the deformation outward, and the second reset guide rib (3173) is used to guide the second abutting rib (823) to recover the deformation inward.

Images