Ejector

Abstract

The present invention relates to an injector comprising: a container; the spraying mechanism comprises a liquid conveying component; the actuating mechanism comprises a holding piece and an actuating piece; the first locking mechanism is used for locking the actuating piece when the number of use times of the ejector does not reach a preset value and the infusion component completes liquid suction; the second locking mechanism is located on the side, facing the holding piece, of the container, and when the number of use times of the ejector reaches a preset value and the infusion component completes liquid suction, the second locking mechanism locks the actuating piece; in the two locking modes, the holding piece can drive the infusion component to move in the second direction under the action of external force so as to trigger spraying. According to the ejector, the first locking mechanism and the second locking mechanism are arranged, two locking modes are executed respectively, the second locking mechanism is used for locking the ejector in a complete liquid suction state when the number of use times of the ejector reaches a preset value, the ejector can complete the last use of the limited number of use times of a container, and the ejector is convenient to use. The locking safety is high, and the second locking mechanism is not prone to being forcibly unlocked through other tools.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and in particular to an ejector. Background Art

[0002] The sprayer usually includes a counting component and a locking component. When the number of times the sprayer is used reaches a preset value, the locking component locks the sprayer to prevent the operator from continuing to use the sprayer.

[0003] CN111821546B discloses a sprayer, including an indicator device for counting and a locking device for locking the container when the number of times the sprayer is used reaches a preset value, the locking device including a locking assembly and a locking spring, after the outer shell is removed, the locking device can lock the inner part and the upper outer shell, and the inner part is prevented from rotating by the upper outer shell that does not rotate, so as to prevent the user from continuing to use the sprayer by directly rotating the inner part, and the locking assembly is locked during the stretching process of the sprayer to prevent the sprayer from further stretching, that is, to prevent the delivery tube of the sprayer from further absorbing liquid. After the outer shell is installed, the actuator provided in the outer shell can push the locking assembly back to the unlocking position to achieve unlocking. In this scheme, the locking assembly is located on one side of the container, and after the lower outer shell is removed, the user can easily unlock the locking assembly and continue to use the sprayer with any columnar structure, resulting in inaccurately metered drug supply. Summary of the invention

[0004] Based on the above-mentioned defects in the prior art, an object of the present invention is to provide an injector, which is provided with two sets of locking mechanisms, namely a first locking mechanism and a second locking mechanism, which respectively execute two locking modes, wherein the second locking mechanism is used to lock the injector in a complete liquid absorption state when the number of uses of the injector reaches a preset value, and the injector can complete the current injection in the state where the second locking mechanism is locked, thereby improving the utilization rate of the liquid in the container, and the locking safety is high, and it is not easy to forcibly unlock the second locking mechanism by other tools.

[0005] To this end, the present invention provides the following technical solutions.

[0006] The present invention provides an injector, comprising:

[0007] A container for holding liquids;

[0008] an injection mechanism, which includes an infusion component;

[0009] an actuating mechanism, comprising a retaining member and an actuating member, wherein the retaining member is used to retain the infusion component and is movably connected to the actuating member; when the actuating member rotates, the retaining member drives the infusion component to move along a first direction, so that the infusion component absorbs liquid from the container;

[0010] a first locking mechanism, when the number of times the ejector has been used does not reach a preset value and the infusion component has completed aspiration, the first locking mechanism locks the actuator to execute a first locking mode;

[0011] A second locking mechanism is located on a side of the container facing the retaining member, and when the number of uses of the ejector reaches a preset value and the infusion component completes the aspiration of liquid, the second locking mechanism locks the actuating member to execute a second locking mode;

[0012] In both locking modes, the retaining member can drive the infusion component to move along the second direction under external force to trigger injection; the first direction and the second direction are opposite.

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

[0014] Optionally, the injector further comprises a triggering member, which is used to trigger the retaining member to move along the second direction and unlock the first locking mechanism, but cannot 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 injector is in an initial state, under the elastic force of the first elastic member, the first abutting portion abuts against the retaining member along a first direction;

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

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

[0019] When the retaining member moves along the second direction, the retaining member can push the first abutting portion to release the first locking component.

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

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

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

[0023] Optionally, when the second locking mechanism executes the second locking mode, by pressing the trigger member, the retaining member can drive the infusion component to move along the second direction, thereby triggering injection;

[0024] The projections of the second locking component and the retaining member in the second direction do not overlap; the retaining member does not contact the second locking component during movement along the second direction, and the movement of the retaining member cannot release the lock of the second locking mechanism.

[0025] Optionally, the injector further comprises a counting disk, which is provided with a first ratchet structure and a notch, and the second locking component is provided with a second ratchet structure;

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

[0027] When the number of times of use reaches a preset value, the counting disk rotates until the notch is opposite to the second ratchet structure in the first direction, and the notch is used to allow the second locking component to move to the second locking position.

[0028] Optionally, the injector further comprises a balancing mechanism, which comprises a balancing element and a third elastic member, and the balancing element is provided with a third ratchet structure;

[0029] Under the elastic force of the third elastic member, the third ratchet structure is meshed with the first ratchet structure; wherein the size of the third ratchet structure in the circumferential direction of the counting disk is greater than the width of the notch.

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

[0031] Optionally, the actuator is provided with a first locking groove and a second locking groove, and the first locking groove and the second locking groove are spaced apart and distributed along the circumference of the actuator;

[0032] The first locking mechanism includes a first locking component, and the first locking component is engaged with the first locking groove along a first direction to execute the first locking mode;

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

[0034] Optionally, the actuating member is provided with an outer convex structure, and the outer convex structure and the second locking groove are distributed in sequence along the rotation direction of the actuating member;

[0035] After the second locking mechanism is unlocked, during the process of rotating the actuating member again, the convex structure is used to lift up the second locking component, so that the counting disk can rotate smoothly to re-engage with the first ratchet structure.

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

[0037] Optionally, the injector further comprises an unlocking auxiliary mechanism, which comprises a first push member;

[0038] When the second locking mechanism locks the actuator, if the container is replaced, the new container is constructed to be able to push the first push member to move along the second direction to the unlocked position, and the first push member pushes the second locking member to leave the second locking position to achieve unlocking; if an old container is installed, the old container is constructed to be unable to push the first push member to move to the unlocked position.

[0039] Optionally, the unlocking auxiliary mechanism further includes a second pushing member;

[0040] When a new container is replaced, the new container is configured to push the second pushing member along 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, wherein 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 loaded, the second pushing member abuts against the first auxiliary member along the first direction;

[0044] During the first spraying process after a new container is loaded, the first auxiliary member moves to the second position under the pressure of the second pushing member along 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 body is open at least toward one side of the retaining member, and the cover body is provided with a first mounting portion and a cavity sequentially distributed along a first direction;

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

[0048] When the first auxiliary member is in the second position, the first auxiliary member is located in the cavity.

[0049] Optionally, the cover body 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 injector further comprises a guide;

[0051] When the actuating member rotates, the guiding member is used to guide the retaining member to move along a first direction;

[0052] When the retaining member moves along the first direction to the complete liquid suction position, the guiding member is used to prevent the retaining member from moving along the second direction.

[0053] Optionally, the retaining member is provided with concave cavities and a second mounting portion sequentially distributed along the first direction, and the container is detachably connected to the second mounting portion;

[0054] The unlocking auxiliary mechanism further includes a second auxiliary member, the second auxiliary member is movably connected to the retaining member, the second pushing member is movably connected to the second auxiliary member, and the second auxiliary member is partially located in the concave cavity.

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

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

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

[0058] During the first triggering of liquid aspiration after a new container is loaded, the fourth elastic member rebounds, so that the second auxiliary member moves relative to the second pushing member along the second direction;

[0059] During the first trigger spraying process after loading a new container, the second auxiliary member moves to abut against the guide member, the retaining member drives the container body to continue to move along the first direction, and the first auxiliary member moves to the second position along the second direction under the pressure of the second pushing member.

[0060] Optionally, the second auxiliary member includes a first main body portion and a plurality of first extension ribs connected to each other; the retaining member is provided with a first through hole, the first main body portion is located in the concave cavity, and the first extension rib passes through the first through hole;

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

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

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

[0064] Optionally, the first extension rib is provided with a buckling portion, the second extension rib is in a bent structure and is provided with a second through hole and a buckling surface connected thereto, and the first extension rib extends into the second through hole;

[0065] When the old container is removed, the first main body part abuts against the cavity wall of the concave cavity under the pressure of the guide member, and the buckling part buckles against the buckling surface;

[0066] When a new container is loaded, under the pressing force of the first auxiliary member, the second pushing member moves along the second direction and the buckling surface is separated from the buckling portion;

[0067] During the first triggered liquid absorption process after a new container is loaded, under the rebound force of the fourth elastic member, the second auxiliary member moves along the second direction to the buckling portion and buckles with the buckling surface again.

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

[0069] When the old container is removed, the projection of the second abutting rib in the second direction all falls on the first main body;

[0070] During the first triggered liquid aspiration process after a new container is loaded, the second auxiliary member moves along the second direction until the first protrusion is pressed inwardly by the second protrusion, so that the first abutting rib is deformed inwardly, thereby causing the projections of the first abutting rib and the corresponding second abutting rib in the first direction to at least partially overlap;

[0071] During the first trigger spraying process after a new container is loaded, the first abutting rib pushes the second abutting rib to move along the first direction, so that the second pushing member pushes the first auxiliary member to the second position.

[0072] Optionally, the retaining member is provided with a third mounting portion, and the infusion component is connected to the third mounting portion; the 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 convex inclined surfaces, the convex inclined surfaces are inclined outwardly along the second direction, and the convex inclined surfaces are arranged in a one-to-one correspondence with the second abutting ribs;

[0073] During the process of loading a new container, the second pushing member moves along the second direction, and the second abutting rib is pressed outward by the correspondingly arranged outer convex inclined surface to be deformed.

[0074] Optionally, a plurality of recessed portions are provided on a side of the first main body portion facing away from the first abutting rib, and the recessed portions are matched with the first abutting ribs one by one.

[0075] Optionally, a surface of the first main body portion facing the guide member is provided with a plurality of protrusions, and the protrusions are arranged one by one on the outer sides of the recessed portions;

[0076] When the protrusion is squeezed along the first direction, the protrusion cooperates with the recessed portion to increase the inward deformation of the first abutting rib.

[0077] Optionally, the first abutting rib is provided with a first abutting inclined surface at one end facing the second pushing member, and the second abutting rib is provided with a second abutting inclined surface at one end facing the second auxiliary member, and the first abutting inclined surface is inclined along a first direction from the outside to the inside;

[0078] When the first abutting rib pushes the second abutting rib to move along the first direction, the first abutting inclined surface abuts against the second abutting inclined surface.

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

[0080] During the first trigger spraying after a new container is loaded, the first reset guide rib is used to guide the first abutment rib to restore its deformation outward, and the second reset guide rib is used to guide the second abutment rib to restore its deformation inward.

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

[0082] The present invention provides an injector, which is provided with two sets of locking mechanisms, a first locking mechanism and a second locking mechanism. The first locking mechanism is used to lock the injector in a complete liquid aspiration state during normal use of the injector, so as to prevent the user from accidentally triggering the injection due to rotating an actuator. The second locking mechanism is used to lock the injector in a complete liquid aspiration state when the number of uses of the injector reaches a preset value. In addition, the first locking mechanism and the second locking mechanism are both used to lock the actuator but not to lock the retaining member. The retaining member can drive the infusion component to move along the second direction under an external force to complete the injection, thereby improving the utilization rate of the liquid in the container. In addition, the second locking mechanism is arranged on the side of the container facing the retaining member, which can prevent the user from forcibly unlocking the second locking mechanism through other tools, thereby ensuring the safety of the locking and preventing the user from continuing to use the old container. BRIEF DESCRIPTION OF THE DRAWINGS

[0083] Figure 1 A structural cross-sectional view of the injector when the injector absorbs liquid for the first time after a new container is loaded into the injector according to the present invention Figure 1 ;

[0084] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0085] Figure 3 A structural cross-sectional view of the injector when the injector absorbs liquid for the first time after a new container is loaded into the injector according to the present invention Figure 2 ;

[0086] Figure 4 A schematic diagram of the local structure of the ejector of the present invention Figure 1 ;

[0087] Figure 5 The exploded view of the local structure of the ejector of the present invention Figure 1 ;

[0088] Figure 6 for Figure 5 Enlarged view of point B in the middle;

[0089] Figure 7 A schematic diagram of the local structure of the ejector of the present invention Figure 2 ;

[0090] Figure 8 The exploded view of the local structure of the ejector of the present invention Figure 2 ;

[0091] Fig. 9 is a schematic diagram of the three-dimensional structure of the actuator of the present invention;

[0092] Fig.10 It is a three-dimensional structural schematic diagram of the guide member of the present invention;

[0093] Fig.11 It is a schematic diagram of the three-dimensional structure of the retaining member of the present invention;

[0094] Fig.12 It is a structural cross-sectional view of the retaining member of the present invention;

[0095] Fig.13 A bottom view of the first housing of the present invention;

[0096] Fig.14 is a schematic diagram of the three-dimensional structure of the first housing of the present invention;

[0097] Fig.15 It is a structural cross-sectional view of the container when the first auxiliary member of the present invention is in the first position;

[0098] Fig.16 A structural cross-sectional view of the container when the second auxiliary member of the present invention is in the first position;

[0099] Fig.17 It is an enlarged three-dimensional cross-sectional view of the injector when the old container is removed according to the present invention;

[0100] Fig.18 A cross-sectional view of the assembly structure of the retaining member, the second pushing member and the second auxiliary member when removing an old container according to the present invention;

[0101] Fig.19 It is an enlarged three-dimensional cross-sectional view of the injector when a new container is loaded and the second locking mechanism is unlocked according to the present invention;

[0102] Fig. 20 This is an enlarged partial cross-sectional view of the injector when a new container is loaded and the second locking mechanism is unlocked according to the present invention.

[0103] Fig.21 A cross-sectional view of the assembly structure of the retaining member, the second pushing member and the second auxiliary member after a new container is loaded into the container of the present invention;

[0104] Fig. 22 It is an enlarged three-dimensional cross-sectional view of the ejector of the present invention after a new container is loaded and the first liquid aspiration is completed;

[0105] Fig.23 It is a cross-sectional view of the assembly structure of the retaining member, the second pushing member and the second auxiliary member after the first liquid aspiration is completed after a new container is loaded;

[0106] Fig.24 It is an enlarged three-dimensional cross-sectional view of the injector of the present invention after a new container is loaded and the first injection is completed;

[0107] Fig.25An exploded view of the assembly structure of the second push member, the second auxiliary member and the fourth elastic member of the present invention;

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

[0109] Description of Reference Numerals

[0110] 100. Injector;

[0111] 1. container; 11. container body; 111. cover body; 1111. first mounting portion; 1112. cavity; 112. body; 12. first auxiliary component; 121. buckle;

[0112] 2. injection mechanism; 21. infusion component; 22. injection body; 221. nozzle; 222. pressure chamber; 223. pump body; 2231. second abutment boss;

[0113] 3. Actuating mechanism; 31. Holding member; 311. Second guiding inclined surface; 312. Second abutting surface; 313. Concave 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. Outer convex inclined surface; 319. First guide groove; 32. Actuating member; 321. First locking groove; 322. Second locking groove; 323. Outer convex structure; 324. First guiding protrusion; 325. Abutting surface; 326. Elastic arm; 3261. Ratchet structure; 3262. Abutting protrusion; 327. Fifth limiting groove; 328. Protruding structure; 33. Fifth elastic member;

[0114] 41. first locking mechanism; 411. first locking member; 4111. first abutting portion; 4112. first block structure; 4113. fourth block structure; 4114. third mounting column; 4115. first clamping rib; 412. first elastic member;

[0115] 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;

[0116] 51. trigger member; 511. trigger unit;

[0117] 52, guide member; 521, first guide slope; 522, first stop surface; 523, extension protrusion; 524, first limiting groove; 525, first abutting boss;

[0118] 6. counting disk; 61. blocking structure; 62. notch; 63. fourth ratchet structure;

[0119] 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;

[0120] 8. Unlocking auxiliary mechanism; 81. First pushing member; 811. Pushed portion; 812. Unlocking portion; 813. Connecting portion; 82. Second pushing member; 821. Second main body; 822. Second extension rib; 8221. Pushing portion; 8222. Second through hole; 8223. Snap-fit ​​surface; 823. Second abutting rib; 8231. Second abutting inclined surface; 824. Ninth mounting column; 83. Second auxiliary member; 831. First main body; 8311. Concave portion; 832. First extension rib; 8321. Snap-fit ​​portion; 833. First abutting rib; 8331. First protrusion; 8332. First abutting inclined surface; 834. Protruding portion; 835. Eighth mounting column; 84. Fourth elastic member;

[0121] 91, first housing; 911, first mounting post; 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 post; 9152, fourth mounting post; 9153, sixth mounting post; 916, annular protrusion; 9161, inner recess; 917, mounting opening;

[0122] 92. Second shell. DETAILED DESCRIPTION

[0123] In order to make the technical solutions and beneficial effects of the present invention more clearly understood, the following is a detailed description by listing specific embodiments. Unless otherwise defined, the technical and scientific terms used herein have the same meanings as those in the technical field to which this application belongs.

[0124] In the description of the present invention, unless otherwise explicitly defined, terms such as “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “height”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, etc., indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of simplified description of the present invention, and do not indicate that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and should not be understood as a limitation on the present invention.

[0125] In the present invention, the terms "first" and "second" are only used 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 as "first" and "second" can explicitly include at least one of the features. In the description of the present invention, "multiple" means at least two; "several" means at least one, unless otherwise clearly defined.

[0126] In the present invention, unless otherwise clearly defined, the terms "install", "connect", "connect", "fix", "set", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral molding; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0127] In the present invention, unless otherwise clearly defined, a first feature being “on”, “above”, “above”, “below”, “below”, “below” or “below” a second feature may mean that the first feature is in direct contact with the second feature, or the first feature and the second feature are in indirect contact with each other through an intermediate medium. Moreover, a first feature being “on”, “above” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than the horizontal height of the second feature. A first feature being “below”, “below” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than the horizontal height of the second feature.

[0128] The "upper" and "lower" mentioned in the present invention are Figure 1 The markings in shall prevail.

[0129] According to the following Figures 1 to 26 The ejector of the present invention will be described in detail.

[0130] In this embodiment, if Figure 1 , Figure 2 , Figure 3 , Figure 6 , Figure 8 and Fig.15As shown, the injector 100 includes a container 1, an injection mechanism 2, an actuating mechanism 3, a first locking mechanism 41 and a second locking mechanism 42, wherein the second locking mechanism 42 is located on the side of the container 1 facing the retaining member 31. The container 1 is a double-layer bottle, wherein the inner layer is a soft film bag, wherein the liquid is contained in the soft film bag, the injection mechanism 2 includes an infusion component 21 and an injection body 22, wherein the injection body 22 includes a nozzle 221, a pressure chamber 222 and a pump body 223, wherein one end of the infusion component 21 is inserted into the container 1, and the other end is movably inserted into the pump body 223 of the injection body 22. The actuating mechanism 3 includes a retaining member 31 and an actuating member 32, wherein the infusion component 21 is retained by the retaining member 31, and the retaining member 31 is movably connected to the actuating member 32. When the actuating member 32 rotates under an external force, the retaining member 31 drives the infusion component 21 to move along a first direction, so that the infusion component 21 absorbs liquid from the container 1 and delivers the liquid to the pressure chamber 222 of the injection body 22 for temporary storage. When the infusion component 21 moves along the second direction, the liquid in the pressure chamber 222 is ejected through the nozzle 221, and the first direction is opposite to the second direction.

[0131] When the number of times the injector 100 is used does not reach the preset value and the infusion component 21 completes the aspiration, the first locking mechanism 41 locks the actuator 32 to execute the first locking mode, and locks the actuator 32 each time the aspiration is completed to prevent the user from accidentally triggering the injection by turning the actuator 32. When the injection is triggered, the retaining member 31 drives the infusion component 21 to move along the second direction under the external force, so that the liquid in the pressure chamber 222 is ejected through the nozzle 221.

[0132] Since there is no reflux gas when the infusion component 21 draws the liquid in the container 1, as the number of uses increases, the soft film bag has a certain tension to resist the extraction of liquid, which can easily lead to inaccurate measurement. For accurate measurement, there must be sufficient margin in the container 1 to make the soft film bag as wrinkled as possible. When the number of uses of the injector 100 reaches the preset value and the infusion component 21 completes the liquid aspiration, the second locking mechanism 42 locks the actuator 32 to execute the second locking mode. At this time, the first locking mechanism 41 also locks the actuator 3 at the same time to limit the container 1 from continuing to take liquid, and the user can trigger the injection to complete the last use of the old container 1 in the limited number of uses. At this time, since the second locking mechanism 42 locks the actuator 32, the user cannot continue to rotate the actuator 32, and thus cannot trigger the liquid aspiration again, and the container must be replaced.

[0133] By adopting the above technical solution, two sets of locking mechanisms, namely the first locking mechanism 41 and the second locking mechanism 42, are provided. The first locking mechanism 41 is used to lock the injector 100 in the complete liquid absorption state during the normal use of the injector 100, so as to prevent the user from accidentally triggering the injection by rotating the actuator 32. The second locking mechanism 42 is used to lock the injector 100 in the complete liquid absorption state when the number of uses of the injector 100 reaches a preset value, and the injector 100 can complete the current injection in the state in which the second locking mechanism 42 is locked, that is, the injector 100 can complete the last use of the container 1 in the limited number of uses, thereby improving the utilization rate of the liquid in the container 1. For example, if the preset value of the number of uses of the injector 100 is 60 times, the number of uses of a single container 1 is limited to 60 times, and the second locking mechanism 42 is used to lock the injector 100 in the complete liquid absorption state when the number of uses of the injector 100 reaches 60 times, and the injector 100 can complete the 60th injection of the liquid provided by the container 1. At this time, there is still sufficient surplus in the container 1 but it cannot be used further. In addition, the second locking mechanism 42 is arranged on the side of the container 1 facing the retaining member 31, which can prevent the user from forcibly unlocking the second locking mechanism 42 by other tools, thereby ensuring the safety of the locking and preventing the user from continuing to use the old container 1.

[0134] In one embodiment, if Figure 1 As shown, the downward movement direction of the retaining member 31 is the first direction, and the upward movement direction is the second direction. Of course, the movement direction of the retaining member 31 is not limited thereto, and the retaining member 31 may also move in other directions such as the front-to-back direction or the left-to-right direction.

[0135] The following is a specific description by taking downward as the first direction and upward as the second direction as an example.

[0136] In one embodiment, if Figure 1 , Figure 7 and Fig.26 As shown, the injector 100 further includes a first housing 91 and a second housing 92 which are detachably connected. The second housing 92 can rotate relative to the first housing 91. A first hollow mounting column 911 is provided inside the first housing 91. The pump body 223 is installed in the first mounting column 911. The nozzle 221 is located at the upper part of the first mounting column 911. One end of the actuator 32 extends into the first housing 91. The actuator 32 is rotatably connected to the first housing 91 through a protruding structure 328 provided on its outer wall. The other end of the actuator 32 extends into the second housing 92 and is detachably connected to the second housing 92. The bottom of the container 1 extends into the second housing 92. When using the injector 100, the user rotates the second housing 92 to drive the actuator 32 to rotate. When the container 1 needs to be replaced, the container 1 can be disassembled after the second housing 92 is removed.

[0137] In one embodiment, the actuator 32 is not removable from the first housing 91. Figure 1 As shown, the second locking mechanism 42 is isolated by the actuating member 32 in the first housing 91 , so that the user cannot forcibly unlock the second locking mechanism 42 by other tools.

[0138] In one embodiment, if Figure 1 As shown, the actuating mechanism 3 includes a fifth elastic member 33, which is sleeved on the outer periphery of the container 1, one end of the fifth elastic member 33 abuts against the retaining member 31, and the other end is restricted from moving in the up and down directions. When the suction is triggered, the retaining member 31 drives the infusion component 21 to move downward, and the fifth elastic member 33 is compressed; when the injection is triggered, the fifth elastic member 33 rebounds to push the retaining member 31 to drive the infusion component 21 to move upward.

[0139] In one embodiment, if Figure 1 , Figure 5 , Figure 6 and Figure 7 As shown, the actuator 32 is sleeved on the outer periphery of the retaining member 31, and the outer periphery of the retaining member 31 is provided with a first guide groove 319, the first guide groove 319 extends along the first direction, and the inner wall of the actuator 32 is provided with a first guide protrusion 324, and the first guide protrusion 324 is movably inserted into the first guide groove 319. The injector 100 also includes a guide member 52, when the actuator 32 rotates, the retaining member 31 rotates synchronously, and at the same time, under the guidance of the guide member 52, the retaining member 31 moves downward relative to the actuator 32, so that the infusion component 21 moves downward to absorb liquid from the container 1. In addition, when the retaining member 31 moves to the complete liquid absorption position, the guide member 52 is also used to prevent the retaining member 31 from moving upward.

[0140] Furthermore, if Figure 6 , Fig.10 and Fig.11As shown, the guide member 52 includes a first guide slope 521 and a first stop surface 522, and the retaining member 31 includes a second guide slope 311 and a second stop surface 312; when the actuator 32 rotates, the first guide slope 521 and the second guide slope 311 cooperate to guide the retaining member 31 to move along the first direction; when the retaining member 31 moves to the full liquid aspiration position along the first direction, the first stop surface 522 abuts against the second stop surface 312 along the first direction to prevent the retaining member 31 from moving along the second direction. Specifically, when the actuator 32 rotates, the first guide slope 521 and the second guide slope 311 cooperate, so that the second guide slope 311 slides along the first guide slope 521, so as to guide the retaining member 31 to move downward relative to the actuator 32 while rotating with the actuator 32. When the retaining member 31 moves to the point where the second guide slope 311 is separated from the first guide slope 521, under the elastic force of the fifth elastic member 33, the second stop surface 312 abuts upward against the first stop surface 522. At this time, the infusion component 21 completes the liquid absorption, and the first locking mechanism 41 locks the actuator 32. The actuator 32 cannot continue to drive the retaining member 31 to rotate. The first stop surface 522 is used to prevent the retaining member 31 from moving upward under the elastic force of the fifth elastic member 33.

[0141] In one embodiment, if Figure 6 and Fig.26 As shown, the injector 100 includes a trigger member 51, which is used to trigger the retaining member 31 to move along the second direction and unlock the first locking mechanism 41, but the trigger member 51 cannot unlock the second locking mechanism 42. Specifically, as Figure 6 , Fig.10 , Fig.11 and Fig.26 As shown, the trigger member 51 is a button structure. When the first locking mechanism 41 performs the first locking mode, by pressing the trigger member 51, the first stop surface 522 is separated from the second stop surface 312, so that the retaining member 31 can drive the infusion component 21 to move upward to trigger the injection, and the upward movement of the retaining member 31 can release the locking of the actuator 32 by the first locking mechanism 41. When the second locking mechanism 42 performs the second locking mode, by pressing the trigger member 51, the first stop surface 522 is separated from the second stop surface 312, so that the retaining member 31 can drive the infusion component 21 to move upward to trigger the injection, but the upward movement of the retaining member 31 cannot release the locking of the actuator 32 by the second locking mechanism 42. Of course, the structure of the trigger member 51 is not limited to a button structure, and can also be other mechanical switch structures such as a trigger structure.

[0142] Furthermore, if Figure 6 , Figure 7 , Fig.10 and Fig.11As shown, the trigger member 51 is movably mounted on the mounting opening 917 of the first housing 91, the trigger member 51 is provided with a trigger portion 511, and the guide member 52 is provided with an extension protrusion 523. When the infusion component 21 completes the liquid absorption, the user presses the trigger member 51, and the trigger portion 511 pushes the extension protrusion 523, so that the guide member 52 rotates a certain angle, and then the first stop surface 522 leaves the second stop surface 312 due to the rotation. Fig.10 and Fig.13 As shown, the guide member 52 is provided with a first limiting groove 524, and the first housing 91 is provided with a first limiting rib 912. The groove width of the first limiting groove 524 is greater than the width of the first limiting rib 912. The first limiting rib 912 extends into the first limiting groove 524. The first limiting groove 524 cooperates with the first limiting rib 912 to limit the rotatable angle of the guide member 52. When the actuator 32 is rotated again to trigger the liquid absorption, the second guiding slope 311 of the retaining member 31 will apply a driving force to the first guiding slope 521 of the guide member 52, and the retaining member 31 and the guide member 52 rotate synchronously. At this time, the guide member 52 rotates and pushes the trigger member 51 to reset. Moreover, since the retaining member 31 and the guide member 52 rotate synchronously, the retaining member 31 only rotates and does not move relative to the actuator 32. When the guide member 52 is reset to be restricted by the first limiting rib 912 and cannot continue to rotate, the retaining member 31 rotates and moves to trigger the liquid absorption.

[0143] In one embodiment, if Figure 2 , Figure 4 and Fig.10 As shown, the guide member 52 is located above the actuator 32, and the guide member 52 is arranged around the pump body 223. The inner wall of the guide member 52 is provided with a first abutment boss 525, and the outer wall of the pump body 223 is provided with a second abutment boss 2231. The second abutment boss 2231 abuts on the first abutment boss 525, and the bottom of the pump body 223 is located in the guide member 52.

[0144] In one embodiment, if Figure 3 and Figure 6As shown, the first locking mechanism 41 includes a first locking component 411 and a first elastic component 412, and the first locking component 411 includes a first abutting portion 4111. When the injector 100 is in the initial state, under the elastic force of the first elastic component 412, the first abutting portion 4111 abuts against the retaining member 31 downward and remains stationary. When the retaining member 31 moves downward, since the retaining member 31 moves in a direction away from the first abutting portion 4111, the first locking component 411 moves downward synchronously under the elastic force of the first elastic component 412, and during the process of the first locking component 411 moving downward synchronously, the first abutting portion 4111 is always in a state of abutting against the retaining member 31. When the infusion component 21 completes the aspiration, the first locking component 411 moves to the first locking position and locks the actuator 32. When the injection is triggered, the retaining member 31 can push the first abutting portion 4111 upward during the upward movement, so that the first locking component 411 leaves the first locking position and is unlocked.

[0145] In one embodiment, if Figure 5 , Figure 6 , Figure 7 and Fig. 9 As shown, the actuator 32 includes a first locking groove 321, and the first locking mechanism 41 includes a first locking component 411. When the first locking component 411 moves downward together with the retaining member 31 until the first locking component 411 abuts against the abutting surface 325 of the actuator 32, the first locking component 411 stops moving downward, and the actuator 32 continues to rotate so that the retaining member 31 continues to drive the infusion component 21 to move downward until the infusion component 21 completes the liquid absorption. At the same time, the actuator 32 rotates until the first locking groove 321 is located below the first locking component 411. Under the elastic force of the first elastic member 412, the first locking component 411 moves downward until the first clamping rib 4115 of the first locking component 411 is clamped in the first locking groove 321, thereby locking the actuator 32.

[0146] Furthermore, if Fig. 9 As shown, the first locking groove 321 is disposed at one end of the actuating member 32 facing the injection body 22 , and the end surface of the end constitutes an abutting surface 325 .

[0147] In one embodiment, if Figure 2 , Figure 4 and Figure 8As shown, the second locking mechanism 42 includes a second locking component 421 and a second elastic component 422, and the injector 100 includes a blocking structure 61. When the number of uses does not reach a preset value, under the elastic force of the second elastic component 422, the second locking component 421 abuts against the blocking structure 61 along the first direction, and the second locking component 421 is prevented from moving to the second locking position by the blocking structure 61. When the number of uses reaches a preset value, the blocking structure 61 gives way, and under the elastic force of the second elastic component 422, the second locking component 421 moves along the first direction to the second locking position to lock the actuator 32.

[0148] Furthermore, if Figure 2 As shown, the projections of the second locking component 421 and the retaining member 31 in the second direction do not overlap. In this way, when the second locking mechanism 42 executes the second locking mode, by pressing the trigger member 51, the retaining member 31 can drive the infusion member 21 to move in the second direction to trigger the injection, and since the retaining member 31 does not contact the second locking component 421 during the movement in the second direction, the movement of the retaining member 31 cannot release the lock of the second locking mechanism 42.

[0149] In one embodiment, if Figure 2 , Figure 4 and Fig. 9 As shown, the actuator 32 is provided with a second locking groove 322, and the first locking groove 321 and the second locking groove 322 are spaced apart and distributed along the circumference of the actuator 32. When the number of times of use does not reach the preset value, due to the limiting of the second locking member 421 by the blocking structure 61, the second locking member 421 does not contact the second locking groove 322, and, during the rotation of the actuator 32, the second locking member 421 does not contact the first locking groove 321. When the number of times of use reaches the preset value, due to the giving way of the blocking structure 61, the second locking member 421 moves downward under the elastic force of the second elastic member 422 until the second locking rib 4215 of the second locking member 421 is engaged with the second locking groove 322, so as to execute the second locking mode.

[0150] Furthermore, if Fig. 9 As shown, the first locking groove 321 and the second locking groove 322 are both disposed at one end of the actuator 32, and the first locking groove 321 and the second locking groove 322 have the same height, that is, the upper surfaces of the first locking groove 321 and the second locking groove 322 are flush, which is convenient for processing. Figure 5 and Fig. 9As shown, since the first locking groove 321 and the second locking groove 322 are spaced apart along the circumference of the actuator 32, when the number of uses does not reach the preset value and the liquid suction is triggered, the first locking member 411 moves downward to abut against the abutting surface 325 of the actuator 32, and the groove shape difference or size difference between the first locking groove 321 and the second locking groove 322 can be limited to avoid the second locking groove 322 from interfering with the first locking member 411 during the continuous rotation of the actuator 32. Of course, the position of the first locking member 411 when the first locking member 411 moves downward to abut against the abutting surface 325 of the actuator 32 can also be limited, that is, at this time, the first locking groove 321, the first locking member 411 and the second locking groove 322 are sequentially distributed along the rotation direction of the actuator 32, so that the first locking member 411 will not contact the second locking groove 322 during the continuous rotation of the actuator 32, avoiding the second locking groove 322 from interfering with the first locking member 411.

[0151] Furthermore, if Figure 6 and Fig. 9 As shown, in order to improve the locking stability, the number of the first locking grooves 321 is three, the number of the third locking grooves 322 is three, the first locking component 411 includes three first clamping ribs 4115 that are matched with the three first locking grooves 321, and the second locking component 421 includes three second clamping ribs 4215 that are matched with the three second locking grooves 322. Among the three first locking grooves 321, the length of the first locking groove 321 located in the middle is smaller than the length of the first locking grooves 321 on both sides thereof. Among the three second locking grooves 321, the width of the second locking groove 322 located in the middle is smaller than the width of the second locking grooves 322 on both sides thereof.

[0152] In one embodiment, if Figure 1 , Figure 3 , Figure 5 , Figure 6 and Fig. 9As shown, the actuator 32 is provided with two groups of first locking grooves 321, each group has three first locking grooves 321, the two groups of first locking grooves 321 are distributed along the radial direction of the actuator 32, the second locking grooves 322 are located in the middle of the two groups of first locking grooves 321, and the three groups of locking grooves are distributed at equal intervals, and the first locking mechanism 41 and the second locking mechanism 42 are arranged at 45° intervals along the circumference of the actuator 32. In this way, when the number of uses does not reach the preset value, the user rotates the second housing 92 half a circle, that is, when the second housing 92 drives the actuator 32 to rotate half a circle, the first locking component 411 is engaged with one group of the first locking grooves 321, the infusion component 21 completes the liquid absorption, and then the user triggers the injection by pressing the trigger 51. When the injection is triggered next time, the second housing 92 is rotated half a circle again, and the first locking component 411 is engaged with another group of the first locking grooves 321. When the number of uses reaches a preset value, that is, when the user triggers the suction for the last time, when the second shell 92 is rotated half a circle, the first locking part 411 is engaged with one set of the first locking grooves 321, and the second locking part 421 is engaged with the second locking groove 322, and the first locking mode and the second locking mode are executed at the same time.

[0153] In one embodiment, if Figure 2 and Figure 4 As shown, the injector 100 further includes a counting disk 6, the outer peripheral surface wall of the counting disk 6 is provided with digital marks or scales or other marks, the first locking mechanism 41 and the second locking mechanism 42 are both located above the counting disk 6, the upper end surface of the counting disk 6 is provided with a first ratchet structure and a notch 62, the first ratchet structure and the notch 62 are distributed along the circumference of the counting disk 6, 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, under the elastic force of the second elastic member 422, the second ratchet structure 4211 is engaged with the first ratchet structure, so that the counting disk 6 rotates unidirectionally, wherein the first ratchet structure forms a blocking structure 61. When the number of uses reaches the preset value, the counting disk 6 rotates until the notch 62 and the second ratchet structure 4211 are opposite in the first direction, and the notch 62 is used to allow the second locking component 421 to move to the second locking position.

[0154] Furthermore, if Figure 2 , Figure 7 and Figure 8As shown, the injector 100 further includes a balancing mechanism 7, which includes a balancing element 71 and a third elastic member 72, and the balancing element 71 is provided with a third ratchet structure 711. Under the elastic force of the third elastic member 72, the third ratchet structure 711 meshes with the first ratchet structure, and the counting disk 6 can only rotate in one direction under the ratchet action of the balancing element 71 and the second locking member 421. Among them, the size of the third ratchet structure 711 in the circumferential direction of the counting disk 6 is greater than the width of the notch 62, so that when the counting disk 6 rotates to the point where the notch 62 is located below the third ratchet structure 711, the third ratchet structure 711 of the balancing element 71 will not fall into the notch 62, thereby avoiding interference with the normal rotation of the counting disk 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.

[0155] Furthermore, if Figure 4 and Figure 8 As shown, the counting disk 6 is sleeved on the outer periphery of the actuator 32, and the second locking mechanism 42 and the balancing mechanism 7 are distributed on both radial sides of the actuator 32, so that the second locking component 421 and the balancing element 71 can respectively press against the radial sides of the upper end surface of the counting disk 6, which is conducive to the stable rotation of the counting disk 6.

[0156] In one embodiment, if Figure 6 , Figure 7 , Figure 8 , Fig.13 and Fig.14 As shown, 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 includes a first block structure 4112, the second locking component 421 includes a second block structure 4212, and the balancing element 71 includes a third block structure 712. The first block structure 4112 is movably engaged with the second limiting groove 9131, the second block structure 4212 is movably engaged with the third limiting groove 9132, and the third block structure 712 is engaged with the fourth limiting groove 9133. The first housing 91 is used to limit the first locking component 411, the second locking component 421 and the balancing element 71 from rotating.

[0157] Furthermore, if Figure 6 , Figure 7 , Figure 8 , Fig.13 and Fig.14As shown, 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 includes a fourth block structure 4113, the second locking component 421 includes a fifth block structure 4213, and the balancing element 71 includes 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.

[0158] In one embodiment, if Figure 2 , Figure 3 , Figures 6 to 8 As shown, 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 shell 91, and the other end is sleeved on the third mounting column 4114 of the first locking component 411, one end of the second elastic member 422 is sleeved on the fourth mounting column 9152 on the inner wall of the first shell 91, and the other end is sleeved on the fifth mounting column 4214 of the second locking component 421, one end of the third elastic member 72 is connected to the sixth mounting column 9153 on the inner wall of the first shell 91, and the other end is connected to the seventh mounting column 714 of the balancing element 71.

[0159] In one embodiment, if Figure 4 and Fig. 9 As shown, the actuator 32 is provided with a convex structure 323 , which is located on the abutting surface 325 . The height of the convex structure 323 protruding from the abutting surface 325 is about 0.5 mm. The convex structure 323 and the second locking groove 322 are distributed in sequence along the rotation direction of the actuator 32 . After the second locking mechanism 42 is unlocked, if the injector 100 is used again, the second locking member 421 needs to be re-engaged with the counting disk 6. Due to the meshing relationship between the second locking member 421 and the counting disk 6, the lowest point of the second locking member 421 is lower than the highest point of the counting disk 6 when the second locking mechanism 42 is unlocked. In order to smoothly rotate the counting disk 6, the convex structure 323 is provided. In the process of rotating the actuator 32 again after the second locking mechanism 42 is unlocked, the convex structure 323 pushes the second locking member 421 upward, so that the counting disk 6 can rotate smoothly. When the actuator 32 rotates until the convex structure 323 leaves the second locking member 421, the first ratchet structure of the second locking member 421 re-engages with the counting disk 6. In addition, in the process of the convex structure 323 pushing the second locking member 421 upward, since the balancing element 71 still remains in meshing with the counting disk 6, it is possible to prevent the occurrence of tooth jumping.

[0160] In one embodiment, when the counting disk 6 and the actuator 32 are in a mating state, the actuator 32 can drive the counting disk 6 to rotate for counting. When the counting disk 6 and the actuator 32 are not in a mating state, the actuator 32 can rotate independently of the counting disk 6 to ensure that the counting disk 6 has a larger counting capacity.

[0161] like Figure 7 As shown, the actuator 32 is provided with an elastic arm 326, and the elastic arm 326 is provided with a pawl structure 3261 and an abutting protrusion 3262, and the pawl structure 3261 and the abutting protrusion 3262 are arranged spaced apart in the first direction. Fig.14 As shown, the inner wall of the first housing 91 is provided with an annular protrusion 916, and an inner recess 9161 is provided in the annular protrusion 916. Figure 8 As shown, the inner wall of the counting disk 6 is provided with a fourth ratchet structure 63, and the elastic arm 326 partially extends into the inner wall of the counting disk 6. When the actuating member 32 rotates until the abutting protrusion 3262 extends into the inner recess 9161, the elastic arm 326 is in the initial state, and the pawl structure 3261 is engaged with the fourth ratchet structure 63. At this time, the counting disk 6 and the actuating member 32 are in a matching state, and the counting disk 6 counts as the actuating member 32 rotates. When the actuating member 32 rotates until the abutting protrusion 3262 abuts against the annular protrusion 916, the groove wall of the annular protrusion 916 radially presses the abutting protrusion 3262 inward, forcing the elastic arm 326 to deform inward, thereby causing the pawl structure 3261 to leave the fourth ratchet structure 63. At this time, the counting disk 6 and the actuating member 32 are in a non-matching state, and the counting disk 6 does not rotate with the actuating member 32.

[0162] In one embodiment, the new container 1 is configured to unlock the second locking mechanism 42, and the old container 1 is configured not to unlock the second locking mechanism 42. With the new container 1 as an unlocking key, the user must install the new container 1 before continuing to use the injector 100.

[0163] In one embodiment, if Figure 1 and Figure 2 As shown, the injector 100 further includes an unlocking auxiliary mechanism 8, and the unlocking auxiliary mechanism 8 includes a first push member 81. Fig.17 As shown, when the second locking mechanism 42 locks the actuating mechanism 3, if the container 1 is replaced, as shown in Fig.19As shown, during the process of loading a new container 1, the moving new container 1 can push the first push member 81 to move to the unlocking position along the second direction, and the first push member 81 pushes the second locking component 421 away from the second locking position during the movement to achieve unlocking, while if the old container 1 is reinstalled, the moving old container 1 cannot push the first push member 81 to move to the unlocking position. By limiting the difference in the structural construction 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 a preset value.

[0164] Furthermore, if Figure 2 and Fig.19 As shown, the unlocking auxiliary mechanism 8 further includes a second push member 82. When a new container 1 is replaced, the moving new container 1 can push the second push member 82 along the second direction, and the first push member 81 is pushed to the unlocking position by the second push member 82. In this solution, the unlocking auxiliary push member is configured as two parts, which is convenient for assembling the unlocking auxiliary mechanism 8 in the limited space inside the injector 100.

[0165] In one embodiment, if Figure 2 As shown, the first push member 81 is installed on the actuating member 32, and the second push member 82 is installed on the retaining member 31, which is conducive to a compact structure. Figure 2 , Fig. 9 and Fig. 22 As shown, the actuator 32 is provided with a fifth limiting groove 327, the fifth limiting groove 327 is located below a second locking groove 322 and the two are connected, the first pushing member 81 is provided with a pushed portion 811, an unlocking portion 812 and a connecting portion 813, the pushed portion 811 and the unlocking portion 812 are respectively connected to the connecting portion 813, and the unlocking portion 812 is at least partially located in the fifth limiting groove 327. Fig.17 and Fig.19 As shown, when the second locking mechanism 42 locks the actuator 32 and a new container 1 is loaded, the new container 1 pushes the second push member 82 upward, the second push member 82 pushes the pushed portion 811 of the first push member 81 upward, and the unlocking portion 812 pushes the second locking component 421 upward, so that the second locking component 421 releases the lock on the actuator 32.

[0166] In one embodiment, if Figure 1 As shown, the container 1 includes a container body 11 and a first auxiliary member 12, and the first auxiliary member 12 is movably connected to the container body 11. Fig.15 As shown, when the container 1 is not activated, the first auxiliary member 12 is in the first position. Fig.15 and Fig.19 As shown in FIG. 1 , when a new container 1 is loaded, the second push member 82 abuts against the first auxiliary member 12 along the first direction. Fig.16 and Fig.24As shown, during the first spraying process after the new container 1 is loaded, the first auxiliary member 12 moves to the second position under the pressure of the second push member 82 along the first direction, so that the container 1 becomes the old container 1. The difference in structural configuration between the new container 1 and the old container 1 is formed by the position change of the first auxiliary member 12 in the first direction.

[0167] Furthermore, if Fig.15 As shown, the container body 11 includes a cover 111 and a body 112. The cover 111 is mounted on the body 112. The cover 111 and the body 112 can be detachably connected (such as snap-on), fixed by hot pressing, or integrally formed. The cover 111 is open at least toward one side of the retaining member 31. The cover 111 is provided with a first mounting portion 1111 and a cavity 1112 distributed in sequence along a first direction. Fig.15 As shown, 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. Fig.16 As shown in FIG. 1 , 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 FIG. Fig.19 and Fig.24 As shown, during the first spraying process after the new container 1 is loaded, the first auxiliary member 12 is separated from the connection with the first mounting portion 1111 under the downward pressure of the second push member 82, and then can fall into the cavity 1112 under its own weight or move into the cavity 1112 under the pressure of the second push member 82. In this solution, the force exerted by the second push member 82 on the first auxiliary member 12 satisfies the separation force greater than the first mounting portion 1111 and the first auxiliary member 12, so that the new container 1 can be turned into the old container 1 during the first spraying process 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 push member 82, or the first auxiliary member 12 in the second position can contact the second push member 82 but the distance it pushes the second push member 82 upward is not enough to unlock the second locking mechanism 42 by pushing the first push member 81.

[0168] Furthermore, if Fig.15 As shown, the cover body 111 is sleeved on one end of the body 112, both ends of the cover body 111 are open, and a cavity 1112 is formed between the first mounting portion 1111 and the end of the body 112. The container body 11 has a simple structure and is easy to process.

[0169] Furthermore, if Fig.15As shown, the first mounting portion 1111 and the first auxiliary member 12 are connected by buckling, which is convenient for assembly and disassembly. Specifically, the inner wall of the cover body 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. When the first auxiliary member 12 is in the first position, the buckle 121 is buckled with the first mounting portion 1111.

[0170] Further, the first auxiliary component 12 is a plug.

[0171] In one embodiment, if Figure 3 , Fig.11 and Fig.12 As shown, the retaining member 31 is provided with concave cavities 313 and a second mounting portion 314 sequentially distributed along the first direction, and the container 1 is detachably connected to the second mounting portion 314, and the second mounting portion 314 can be a buckle. Fig.19 and Fig.24 As shown, when the injector 100 is in the initial state, the retainer 31 is in the upper limit position, at which time the guide 52 is at least partially located in the cavity 313 and the bottom surface of the guide 52 abuts against the bottom wall of the cavity 313 .

[0172] like Fig.24 As shown, when the second locking mechanism 42 locks the actuating member 32 and the injection is completed, the injector 100 returns to the initial state, the retaining member 31 is in the upper limit position, and the bottom surface of the retaining member 31 abuts against the bottom wall of the cavity 313. In the subsequent process of replacing a new container 1, the movable space of the second push member 82 is limited by the distance between the bottom surface of the retaining member 31 and the container 1. In addition, in the first injection process after the new container 1 is loaded, the second push member 82 is required to push the first auxiliary member 12 downward to change the new container 1 into the old container 1. Therefore, other components are required to apply a downward force to the second push member 82. Therefore, in this solution, Figure 1 and Figure 2 As shown, the unlocking auxiliary mechanism 8 also includes a second auxiliary member 83, which is movably connected to the retaining member 31, and the second push member 82 is movably connected to the second auxiliary member 83. The second auxiliary member 83 is partially located in the concave cavity 313. The position change between the second auxiliary member 83 and the second push member 82 can ensure that the second push member 82 can push the first push member 81 upward to the unlocking position, and at the same time, it can also ensure that the first auxiliary member 12 is pushed from the first position to the second position through the second push member 82 during the first injection process after the new container 1 is subsequently loaded.

[0173] Furthermore, if Figure 2 As shown, the unlocking auxiliary mechanism 8 further includes a fourth elastic member 84 , one end of which is sleeved on the eighth mounting post 835 of the second auxiliary member 83 , and the other end of which is sleeved on the ninth mounting post 824 of the second pushing member 82 .

[0174] like Fig.17 and Fig.18 As shown, when the old container 1 is removed, the last injection of the limited number of uses of the old container 1 has been completed, one end of the guide member 52 extends into the recessed 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 push member 82 is in the second lower limit position under the elastic force of the fourth elastic member 84.

[0175] like Figures 19 to 21 As shown, when a new container 1 is loaded, the first auxiliary member 12 pushes the second push member 82 upward, and the second push member 82 pushes the first push member 81 upward to unlock the second locking mechanism 42, and the fourth elastic member 84 is compressed upward by the second push member 82. During this process, since the second auxiliary member 83 is pressed downward by the guide member 52, the second auxiliary member 83 does not move and remains in the first lower limit position. When the new container 1 is assembled, the second push member 82 is in the second upper limit position. At this time, the connection between the second auxiliary member 83 and the second push member 82 is disconnected, and is only connected by the fourth elastic member 84.

[0176] like Fig. 22 and Fig.23 As shown, during the first triggered suction process after the new container 1 is loaded, the retaining member 31 drives the second auxiliary member 83, the second push member 82, the container 1 and the infusion component 21 to move downward synchronously. At this time, since the second auxiliary member 83 is away from the guide member 52, under the rebound force of the fourth elastic member 84, the second auxiliary member 83 moves upward relative to the second push member 82. During this process, since the connection between the second auxiliary member 83 and the second push member 82 is disconnected, the second push member 82 is still in the second upper limit position. When the second auxiliary member 83 moves to the point where it is reconnected with the second push member 82, the second auxiliary member 83 stops moving. At this time, the second auxiliary member 83 is in the second upper limit position.

[0177] like Fig.24 As shown, during the first triggered injection process after the new container 1 is loaded, the retaining member 31 drives the second auxiliary member 83, the second pushing member 82, the container 1 and the infusion component 21 to move upward synchronously, the second auxiliary member 83 moves until it abuts against the guide member 52 and stops moving, the retaining member 31 drives the container body 11 to continue to move upward, and the first auxiliary member 12 moves downward to the second position under the pressure of the second pushing member 82, and the new container 1 becomes the old container 1.

[0178] Furthermore, if Figure 2 , Fig.11 , Fig.17 and Fig.25As shown, the second auxiliary member 83 includes a connected first main body 831 and two first extension ribs 832; the retaining member 31 is provided with two first through holes 315, the two first extension ribs 832 are arranged in a one-to-one correspondence with the two first through holes 315, the first main body 831 is located in the concave cavity 313, and the first extension ribs 832 pass through the corresponding first through holes 315. The second push member 82 is located on the side of the retaining member 31 facing the container 1, and the second push member 82 includes a connected second main body 821 and two second extension ribs 822, the two second extension ribs 822 are arranged in a one-to-one matching manner with the two first extension ribs 832, the second extension ribs 822 are movably connected to the corresponding first extension ribs 832, and the second main body 821 is used to abut against the first auxiliary member 12. It should be understood that the number of the three structures of the first extension rib 832, the first through hole 315 and the second extension rib 822 is not limited to two, and can also be three or even more, as long as the one-to-one matching arrangement is met.

[0179] Furthermore, if Fig.19 and Fig.25 As shown, the second extension rib 822 is provided with a pushing portion 8221, wherein the pushing portion 8221 of one of the second extension ribs 822 is opposite to the first push member 81 in the second direction, and the pushing portion 8221 is used to push the first push member 81 to move to the unlocking position. In this solution, in order to simplify the processing, the two second extension ribs 822 have the same structure and are both provided with the pushing portion 8221. Of course, the pushing portion 8221 may also be provided on only one of the second extension ribs 822.

[0180] Furthermore, if Figure 2 and Fig.11 As shown, the outer wall of the retaining member 31 is provided with a groove 316 extending along the second direction, the first pushing member 81 is provided with a pushed portion 811, the pushing portion 8221 and the pushed portion 811 are arranged in sequence in the groove 316 along the second direction, and the groove 316 is used to limit the rotation of the first pushing member 81 and the second pushing member 82, that is, the first pushing member 81 and the second pushing member 82 can only move in the up and down directions.

[0181] In one embodiment, if Figure 2 and Fig.25 As shown, 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 thereto, and the first extension rib 832 extends into the second through hole 8222 .

[0182] When the old container 1 is removed, the first main body portion 831 abuts against the cavity wall of the concave cavity 313 under the pressure of the guide member 52, the buckling portion 8321 buckles against the buckling surface 8223, the second auxiliary member 83 is in the first lower limit position, and the second push member 82 is in the second lower limit position.

[0183] When a new container 1 is loaded, the second push piece 82 moves upward under the pressure of the first auxiliary piece 12, and the buckle surface 8223 is separated from the buckle portion 8321, that is, the connection between the second auxiliary piece 83 and the second push 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 push piece 82 moves to the second upper limit position.

[0184] During the first triggering of the liquid aspiration after loading a new container 1, the second auxiliary member 83 moves upward under the rebound force of the fourth elastic member 84 until the buckling portion 8321 is buckled again on the buckling surface 8223 and stops moving. When the liquid aspiration is completed, the second auxiliary member 83 is at the second upper limit position, and the second push member 82 is still at the second upper limit position.

[0185] Furthermore, if Fig.11 , Fig.18 and Fig.25 As shown, the second auxiliary member 83 also includes two first abutting ribs 833, and the first abutting ribs 833 are provided with a first protrusion 8331; the retaining member 31 is provided with two third through holes 317, and the third through holes 317 are provided with a second protrusion 3171, and the first abutting ribs 833 extend into the third through holes 317 one by one, and the outer wall of the first abutting ribs 833 abuts against the second protrusion 3171, and the second push member 82 includes two second abutting ribs 823, and the second abutting ribs 823 and the first abutting ribs 833 are provided one by one. It should be understood that the number of the three structures of the first abutting rib 833, the third through hole 317 and the second abutting rib 823 is not limited to two, and can also be three or even more, as long as the one-to-one matching arrangement is met.

[0186] like Fig.18 As shown, when the old container 1 is removed, the projection of the second abutting rib 823 in the second direction all falls on the first main body portion 831, that is, the projections of the first abutting rib 833 and the corresponding second abutting rib 823 in the first direction do not overlap, and the second abutting rib 823 is completely located on the inner side of the first abutting rib 833. Since the first auxiliary member 12 of the new container 1 is buckled to the first mounting portion 1111 of the container body 11, the buckling of the two is relatively firm, and it is difficult for the second auxiliary member 83 to drive the second pushing member 82 to push the first auxiliary member 12 downward from the first position to the second position solely by the fourth elastic member 84. Therefore, in this solution, Fig.23As shown, during the first triggered liquid suction process after the new container 1 is loaded, the second auxiliary piece 83 moves upward until the first protrusion 8331 is pressed inward by the second protrusion 3171, so that the first abutment rib 833 is deformed in the direction toward its inner side, thereby making the projections of the first abutment rib 833 and the corresponding second abutment rib 823 in the first direction at least partially overlap, so that during the first triggered spraying process after the new container 1 is loaded, the first abutment rib 833 can abut against the second abutment rib 823 downward, so that the first abutment rib 833 can push the second abutment rib 823 to move downward, thereby making the second push piece 82 push the first auxiliary piece 12 downward from the first position to the second position.

[0187] Furthermore, if Fig.11 , Fig.12 and Fig.23 As shown, the retaining member 31 is provided with a third mounting portion 318, and the infusion component 21 is connected to the third mounting portion 318; the outer wall of the third mounting portion 318 constitutes a side hole wall of the third through hole 317, and the third mounting portion 318 passes through the second auxiliary member 83 and the second push member 82, and the outer wall of the third mounting portion 318 is provided with two convex inclined surfaces 3181, which are inclined outwardly along the second direction, and the convex inclined surfaces 3181 are arranged one by one with the second abutting rib 823. In the process of loading a new container 1, the new container 1 pushes the second push member 82 to move upward, and the second abutting rib 823 is squeezed outward by the corresponding convex inclined surface 3181 and deformed, which can increase the projection overlap area of ​​the first abutting rib 833 and the corresponding second abutting rib 823 in the first direction, which is conducive to the first abutting rib 833 to stably push the second abutting rib 823 downward. In addition, since the third mounting portion 318 passes through the second auxiliary member 83 and the second pushing member 82 , in order to ensure stable cooperation between the second auxiliary member 83 and the second pushing member 82 , the number of the fourth elastic members 84 is two or more and they are arranged in a circular array.

[0188] In one embodiment, if Fig.17 and Fig.18 As shown, two recessed portions 8311 are provided on the side of the first main body portion 831 facing away from the first abutting rib 833. The two recessed portions 8311 are matched with the two first abutting ribs 833 one by one. By providing the recessed portions 8311, a weak point is formed on the first main body portion 831, which is conducive to the inward deformation of the first abutting rib 833.

[0189] Furthermore, if Figures 17 to 19As shown, two protrusions 834 are provided on the side surface of the first main body 831 facing the guide member 52, and the protrusions 834 are arranged one by one on the outside of the recessed portion 8311. During the first trigger injection process after loading a new container 1, the retaining member 31 drives the second auxiliary member 83, the second push member 82, the container 1 and the infusion component 21 to move upward synchronously. When the second auxiliary member 83 at the first upper limit position moves to abut against the bottom surface of the guide member 52, the retaining member 31 continues to drive the container 1 to move upward, and the protrusion 834 is squeezed downward along the guide member 52. The protrusion 834 cooperates with the recessed portion 8311 to increase the inward deformation of the first abutting rib 833, which is conducive to the inward deformation of the first abutting rib 833.

[0190] In one embodiment, if Fig.23 and Fig.25 As shown, the first abutting rib 833 is provided with a first abutting inclined surface 8332 at one end facing the second pushing member 82, and the second abutting rib 823 is provided with a second abutting inclined surface 8231 at one end facing the second auxiliary member 83, and the first abutting inclined surface 8332 is inclined downward from the outside to the inside. In the process of the first abutting rib 833 pushing the second abutting rib 823 to move along the first direction, the first abutting inclined surface 8332 and the second abutting inclined surface 8231 abut against each other. In this solution, the configuration of the first abutting inclined surface 8332 and the second abutting inclined surface 8231 is conducive to the stable abutment between the first abutting rib 833 and the second abutting rib 823.

[0191] In one embodiment, if Fig.12 , Fig.18 and Fig.23 As shown, the third through hole 317 is provided with a first reset guide rib 3172 and a second reset guide rib 3173. During the first trigger spraying process after the new container 1 is loaded, when the first auxiliary member 12 of the new container 1 is separated from the first mounting portion 1111 under the push of the second push member 82, the first abutting rib 833 moves along the surface of the first reset guide rib 3172 during the process of continuing to move downward, and the first abutting rib 833 is guided to restore the deformation outward through the outer contour shape of the first reset guide rib 3172; the second abutting rib 823 moves along the surface of the second reset guide rib 3173 during the process of continuing to move downward, and the second abutting rib 823 is guided to restore the deformation inward through the outer contour shape of the second reset guide rib 3173.

[0192] Furthermore, if Fig.21 As shown, when the new container 1 is assembled, the second main body portion 821 abuts upward against the second reset guide rib 3173 , that is, the second reset guide rib 3173 is also used to limit the second upper limit position of the second main body portion 821 .

[0193] It should be understood that, herein, the “first upper limit position” and “first lower limit position” of the second auxiliary member 83 , and the “second upper limit position” and “second lower limit position” of the second push member 82 are all based on the retaining member 31 as a reference.

[0194] It should be understood that "completing liquid imbibition" herein refers to the state of the injector 100 when the injector 100 completes one metered liquid imbibition.

[0195] It should be understood that in order to ensure that the above-mentioned transmission relationship can be executed stably, the elastic force of the fifth elastic member 33 is greater than the separation force at the connection between the retaining member 31 and the container 1, the separation force at the connection between the retaining member 31 and the container 1 is greater than the separation force at the connection between the first auxiliary member 12 and the cover body 111 when the first auxiliary member 12 is in the first position, and the separation force at the connection between the first auxiliary member 12 and the cover body 111 when the first auxiliary member 12 is in the first position is greater than the elastic forces of the fourth elastic member 84 and the second elastic member 422, respectively.

[0196] It should be understood that the above embodiments are exemplary and are not intended to include all possible implementations included in the claims. Various modifications and changes may be made on the basis of the above embodiments without departing from the scope of the present disclosure. Similarly, the various technical features of the above embodiments may be arbitrarily combined to form other embodiments of the present invention that may not be explicitly described. Therefore, the above embodiments only express several implementations of the present invention and do not limit the scope of protection of the patent of the present invention.

Claims

1. An ejector, characterized in that: The injector (100) comprises: A container (1) for containing a liquid; The spray mechanism (2) comprises an infusion component (21); an actuating mechanism (3), comprising a retaining member (31) and an actuating member (32); the retaining member (31) is used to retain the infusion component (21) and is movably connected to the actuating member (32); when the actuating member (32) rotates, the retaining member (31) drives the infusion component (21) to move along a first direction, so that the infusion component (21) absorbs liquid from the container (1); a first locking mechanism (41), which locks the actuating member (32) to execute a first locking mode when the number of times the injector (100) has been used has not reached a preset value and the infusion component (21) has completed aspiration of liquid; a second locking mechanism (42), which is located on a side of the container (1) facing the retaining member (31), and when the number of times the injector (100) has been used reaches a preset value and the infusion component (21) has completed the aspiration of liquid, the second locking mechanism (42) locks the actuating member (32) to execute a second locking mode; In both locking modes, the retaining member (31) can drive the infusion component (21) to move along a second direction under an external force to trigger injection; the first direction and the second direction are opposite.

2. The injector according to claim 1, characterized in that The new container (1) is configured to be able to unlock the second locking mechanism (42), and the old container (1) is configured not to be able to unlock the second locking mechanism (42).

3. The injector according to claim 1, characterized in that The injector (100) further comprises a triggering member (51) for triggering the retaining member (31) to move along the second direction and unlock the first locking mechanism (41), but cannot unlock the second locking mechanism (42).

4. The injector according to claim 3, characterized in that The first locking mechanism (41) comprises a first locking component (411) and a first elastic component (412); the first locking component (411) comprises a first abutting portion (4111); When the injector (100) is in an initial state, under the elastic force of the first elastic member (412), the first abutting portion (4111) abuts against the retaining member (31) along a first direction; When the retaining member (31) moves along the first direction, the first locking component (411) moves along the first direction under the elastic force of the first elastic member (412); When the infusion component (21) completes the aspiration of liquid, the first locking component (411) moves to a first locking position and locks the actuating member (32); When the retaining member (31) moves along the second direction, the retaining member (31) can push the first abutting portion (4111) to release the first locking member (411).

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

6. The injector according to claim 5, characterized in that When the second locking mechanism (42) executes the second locking mode, by pressing the trigger member (51), the retaining member (31) can drive the infusion component (21) to move along the second direction, thereby triggering the injection; The projections of the second locking component (421) and the retaining member (31) in the second direction do not overlap; The retaining member (31) does not contact the second locking component (421) during the movement along the second direction, and the movement of the retaining member (31) cannot release the lock of the second locking mechanism (42).

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

8. The injector according to claim 7, characterized in that The injector (100) further comprises a balancing mechanism (7), which comprises a balancing element (71) and a third elastic member (72); the balancing element (71) is provided with a third ratchet structure (711); Under the elastic force of the third elastic member (72), the third ratchet structure (711) meshes with the first ratchet structure; wherein the size of the third ratchet structure (711) in the circumferential direction of the counting disk (6) is greater than the width of the notch (62).

9. The injector according to claim 8, characterized in that The counting disk (6) is sleeved on the outer circumference of the actuating member (32), and the second locking mechanism (42) and the balancing mechanism (7) are respectively distributed on two radial sides of the actuating member (32).

10. The injector according to claim 7, characterized in that The actuating member (32) is provided with a first locking groove (321) and a second locking groove (322), wherein the first locking groove (321) and the second locking groove (322) are spaced apart and distributed along the circumference of the actuating member (32); 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) along a first direction to execute the first locking mode; The second locking component (421) is engaged with the second locking groove (322) along the first direction to execute the second locking mode.

11. The injector according to claim 10, characterized in that The actuating member (32) is provided with an outer convex structure (323), and the outer convex structure (323) and the second locking groove (322) are distributed in sequence along the rotation direction of the actuating member (32); After the second locking mechanism (42) is unlocked, during the process of rotating the actuator (32) again, the convex structure (323) is used to lift the second locking component (421) so that the counting disk (6) can rotate smoothly to re-engage with the first ratchet structure.

12. The injector according to any one of claims 1 to 4, characterized in that: The injector (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 according to claim 5, characterized in that The injector (100) further comprises an unlocking auxiliary mechanism (8), which comprises a first push member (81); When the second locking mechanism (42) locks the actuator (32), if the container (1) is replaced, the new container (1) is constructed to be able to push the first push member (81) to move along the second direction to the unlocking position, and the first push member (81) pushes the second locking member (421) to leave the second locking position to achieve unlocking; if an old container (1) is installed, the old container (1) is constructed to be unable to push the first push member (81) to move to the unlocking position.

14. The injector according to claim 13, characterized in that 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 push member (82) along a second direction, so that the second push member (82) pushes the first push member (81) to move to an unlocking position.

15. The injector according to claim 14, characterized in that The container (1) comprises a container body (11) and a first auxiliary member (12), wherein 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 loaded, the second pushing member (82) abuts against the first auxiliary member (12) along a first direction; During the first spraying process after a new container (1) is loaded, the first auxiliary member (12) moves to the second position under the pressure of the second push member (82) along the first direction, so that the container (1) becomes an old container (1).

16. The injector according to claim 15, characterized in that The container body (11) comprises a cover (111) and a container body (112), wherein the cover (111) is mounted on the container body (112); The cover body (111) is open at least toward one side of the retaining member (31), and the cover body (111) is provided with a first mounting portion (1111) and a cavity (1112) sequentially distributed along 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 portion (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 according to claim 16, characterized in that The cover body (111) is sleeved on one end of the body (112), and the cavity (1112) is formed between the first mounting portion (1111) and the end of the body (112).

18. The injector according to claim 15, characterized in that The injector (100) further includes a guide member (52); When the actuating member (32) rotates, the guiding member (52) is used to guide the retaining member (31) to move along a first direction; When the retaining member (31) moves along the first direction to a complete liquid suction position, the guiding member (52) is used to prevent the retaining member (31) from moving along the second direction.

19. The injector according to claim 18, characterized in that The retaining member (31) is provided with concave cavities (313) and a second mounting portion (314) which are sequentially distributed along a first direction, and the container (1) is detachably connected to the second mounting portion (314); The unlocking auxiliary mechanism (8) also includes a second auxiliary member (83), the second auxiliary member (83) is movably connected to the retaining member (31), 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 according to claim 19, characterized in that The unlocking auxiliary mechanism (8) further comprises a fourth elastic member (84), wherein the fourth elastic member (84) is respectively connected to the second auxiliary member (83) and the second pushing member (82); When the old container (1) is removed, one end of the guide member (52) extends into the concave cavity (313) and abuts against the second auxiliary member (83) along the first direction; When a new container (1) is loaded, the first auxiliary member (12) pushes the second pushing member (82) along a second direction to unlock the second locking mechanism (42), and the fourth elastic member (84) is compressed; During the first triggered liquid aspiration process after a new container (1) is loaded, the fourth elastic member (84) rebounds, so that the second auxiliary member (83) moves relative to the second pushing member (82) along the second direction; During the first trigger spraying process after a new container (1) is loaded, the second auxiliary member (83) moves to abut against the guide member (52), the retaining member (31) drives the container body (11) to continue to move in the first direction, and the first auxiliary member (12) moves in the second direction to the second position under the pressure of the second pushing member (82).

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

22. The injector according to claim 21, characterized in that At least one of the second extending ribs (822) is provided with a pushing portion (8221), the pushing portion (8221) is opposite to the first pushing member (81) in the second direction, and the pushing portion (8221) is used to push the first pushing member (81) to move to an unlocking position.

23. The injector according to claim 22, characterized in that The outer wall of the retaining member (31) is provided with a groove (316) extending along the second direction, the first pushing member (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) along the second direction.

24. The injector according to claim 21, characterized in that 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 to each other, and the first extension rib (832) extends into the second through hole (8222); When the old container (1) is removed, the first main body (831) abuts against the cavity wall of the concave cavity (313) under the pressure of the guide member (52), and the buckling portion (8321) buckles against the buckling surface (8223); When a new container (1) is loaded, under the pressure of the first auxiliary member (12), the second pushing member (82) moves along the second direction and the buckling surface (8223) is separated from the buckling portion (8321); During the first triggered liquid absorption process after a new container (1) is loaded, under the rebound force of the fourth elastic member (84), the second auxiliary member (83) moves along the second direction to the buckling portion (8321) and is re-buckled to the buckling surface (8223).

25. The injector according to claim 21, characterized in that The second auxiliary member (83) further comprises a plurality of first abutting ribs (833), and the first abutting ribs (833) are provided with a first protrusion (8331); the retaining member (31) is provided with a plurality of third through holes (317), and the third through holes (317) are provided with a second protrusion (3171), and the first abutting ribs (833) extend into the third through holes (317) one by one and the outer walls thereof abut against the second protrusion (3171); the second pushing member (82) comprises a plurality of second abutting ribs (823), and the second abutting ribs (823) and the first abutting ribs (833) are provided one by one; When the old container (1) is removed, the projection of the second abutting rib (823) in the second direction all falls on the first main body (831); During the first triggered liquid aspiration process after a new container (1) is loaded, the second auxiliary member (83) moves along the second direction until the first protrusion (8331) is pressed inwardly by the second protrusion (3171), so that the first abutting rib (833) is deformed inwardly, thereby causing the projections of the first abutting rib (833) and the corresponding second abutting rib (823) in the first direction to at least partially overlap; During the first trigger spraying after a new container (1) is loaded, the first abutment rib (833) pushes the second abutment rib (823) to move along the first direction, so that the second pushing member (82) pushes the first auxiliary member (12) to the second position.

26. The injector according to claim 25, characterized in that The retaining member (31) is provided with a third mounting portion (318), and the infusion component (21) is connected to the third mounting portion (318); the outer wall of the third mounting portion (318) constitutes 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 convex inclined surfaces (3181), the convex inclined surfaces (3181) are inclined outwardly along the second direction, and the convex inclined surfaces (3181) are arranged in a one-to-one correspondence with the second abutting rib (823); During the process of loading a new container (1), the second pushing member (82) moves along the second direction, and the second abutting rib (823) is pressed outward by the correspondingly arranged outer convex inclined surface (3181) to be deformed.

27. The injector according to claim 25, characterized in that A plurality of recessed portions (8311) are provided on a side of the first main body portion (831) facing away from the first abutting rib (833), and the recessed portions (8311) are matched with the first abutting rib (833) one by one.

28. The injector according to claim 27, characterized in that A surface of one side of the first main body portion (831) facing the guide member (52) is provided with a plurality of protrusions (834), and the protrusions (834) are arranged one by one on the outer side of the recessed portion (8311); When the protrusion (834) is squeezed along the first direction, the protrusion (834) cooperates with the recessed portion (8311) to increase the amount of inward deformation of the first abutting rib (833).

29. The injector according to claim 26, characterized in that One end of the first abutting rib (833) facing the second pushing member (82) is provided with a first abutting inclined surface (8332), and one end of the second abutting rib (823) facing the second auxiliary member (83) is provided with a second abutting inclined surface (8231), and the first abutting inclined surface (8332) is inclined along a first direction from the outside to the inside; In the process that the first abutting rib (833) pushes the second abutting rib (823) to move along the first direction, the first abutting inclined surface (8332) and the second abutting inclined surface (8231) abut against each other.

30. The injector according to claim 26, characterized in that The third through hole (317) is provided with a first reset guide rib (3172) and a second reset guide rib (3173); During the first trigger spraying after a new container (1) is loaded, the first reset guide rib (3172) is used to guide the first abutment rib (833) to restore its deformation outward, and the second reset guide rib (3173) is used to guide the second abutment rib (823) to restore its deformation inward.

Images