Rechargeable injection device

Abstract

The invention provides a rechargeable injection device. The rechargeable injection device comprises a shell and an injection unit, and the injection unit is arranged in the shell; a pushing unit, wherein the pushing unit is arranged in the shell; a charging unit, wherein the charging unit is arranged in the shell; the charging unit comprises a baffle plate which is arranged in the housing; the rotary table is rotationally arranged in the shell; and the multiple sets of charging ports are installed on the outer side of the rotating table, and a socket groove is formed in one side of the shell. According to the invention, the pressing rod is extruded downwards, the elastic connecting piece a is driven to be compressed, the guide rod is driven to slide along the corrugated guide rail b, the pressing rod is released, the elastic connecting piece a drives the guide rod to slide along the corrugated guide rail a, the rotating table is driven to rotate by 90 degrees, the other group of charging ports are driven to correspond to the socket slot in position, and other types of charging ports are switched for charging. Therefore, the device is suitable for various different charging connectors, and is convenient to use.

Description

Technical Field

[0001] The present invention relates to the technical field of push injection devices, in particular to a rechargeable push injection device. Background Art

[0002] Push injection, also known as injection, refers to the injection of liquid into the human body with the help of medical devices such as syringes to achieve the purpose of diagnosis, treatment and prevention of diseases. After injection, the medicine can quickly reach the blood and take effect. There are mostly two ways of existing injections. The first is to inject through a manual handheld syringe, and the second is to inject through a push injection device. The push injection device is a device that completes long-term, micro-amount, uniform and precise injection. It can be used for venous-arterial injections, anesthetic injections and drug chemotherapy for cancer patients in various clinical departments.

[0003] Chinese patent application No. 201420552724.2 discloses an injection pump push device, including a planetary gear reducer stepper motor, a motor side mounting plate, a motor opposite side mounting plate, a guide rod, a lead screw, a slide plate, a half nut, a push handle transmission rod and a linear displacement sensor assembly. The reducer of the planetary gear reducer stepper motor is a planetary gear reducer, which is mounted on the motor side mounting plate. A linear bearing is mounted on the slide plate, and the guide rod passes through the linear bearing. The slide plate is slidably connected to the guide rod through the linear bearing. The linear displacement sensor assembly includes a slide rail part and a brush part. The slide rail part is composed of a slide rail, a slide rail bracket and a slide rail bracket base. The slide rail is installed in a mounting groove of the slide rail bracket made of a profile.

[0004] The push injection device does not elaborate on its power supply method. Currently, there are two power supply methods for existing push injection devices. The first method is to power the device through a wire or a plug. However, this method requires a socket when used, which makes the push injection device inconvenient to use and not easy to carry. The second charging method is similar to that of a smart phone, in which a group of charging ports are provided on the push injection device, and a battery is provided inside the push injection device. The battery is charged by inserting the charging connector into the port to achieve the purpose of power supply. However, there are many types of existing charging connector data cables, and only one group of charging ports cannot be adapted to a variety of different charging connectors, which is inconvenient to use. Summary of the invention

[0005] The purpose of the present invention is to address the deficiencies in the prior art and provide a rechargeable push injection device, which drives the elastic connecting piece a to be compressed by squeezing the pressing rod downward, driving the guide rod to slide along the corrugated guide rail b, and releasing the pressing rod. The elastic connecting piece a drives the guide rod to slide along the corrugated guide rail a, driving the rotating table to rotate 90°, driving another group of charging ports to correspond to the position of the socket slots, switching other types of charging ports for charging, and thus adapting to a variety of different charging connectors to facilitate the use of the device.

[0006] To achieve the above object, the present invention provides the following technical solutions: A rechargeable push injection device comprises a housing, an injection unit, wherein the injection unit is arranged in the housing; a pushing unit, wherein the pushing unit is arranged in the housing; and a charging unit, wherein the charging unit is arranged in the housing. Furthermore, the charging unit includes: a baffle, which is arranged in the shell; a rotating table, which is rotatably arranged in the shell; a charging port, wherein multiple groups of the charging ports are installed on the outer side of the rotating table, and a socket slot is opened on one side of the shell, and the multiple groups of the charging ports correspond to the positions of the socket slot; an elastic connecting member a, which is arranged between the baffle and the rotating table; a battery, which is arranged in the shell; a pressing assembly, which drives the rotating table to rotate so that the multiple groups of the charging ports are aligned with the socket slot in turn, and the aligned charging ports are electrically connected to the battery.

[0007] Preferably, the pressing assembly includes: a pressing rod, which is installed on the rotating table; a fixed block a, which is installed in the shell, and a corrugated guide rail a is provided on the fixed block a; a fixed block b, which is installed in the shell, and the fixed block a corresponds to the fixed block b in position, and a corrugated guide rail b is provided on the fixed block b, and the corrugated guide rail a is staggered with the corrugated guide rail b; a guide rod, which is installed on one side of the pressing rod, and slides between the corrugated guide rail a and the corrugated guide rail b.

[0008] Furthermore, the injection unit includes: a moving shell; a fixed block c, which is installed in the moving shell and has a slot b in the fixed block c; a screw, which is slidably arranged in the slot b, has cutouts on both sides of the screw, and has a pushing block installed on the screw; a rotating sleeve, which is installed on the outside of the screw and is threadedly connected to the screw; a fixed shell, which is installed in the moving shell and has a through hole at one end; a medicine liquid tube, which is placed in the fixed shell and has a threaded sleeve installed on the moving shell; a mounting sleeve, which is threadedly connected to the threaded sleeve and has an injection needle installed on the mounting sleeve; and a driving assembly, which drives the rotating sleeve to rotate.

[0009] Preferably, the driving assembly comprises: a rotating driving member a, which is installed in the movable shell; a conical table a, which is installed at the output end of the rotating driving member a, and a plurality of groups of ring teeth a are installed on the surface of the conical table a, and the diameters of the plurality of groups of ring teeth a gradually decrease along the axis direction of the conical table a; a conical table b, which is installed on the rotating sleeve, and a plurality of groups of ring teeth b are provided on the surface of the conical table b, and the diameters of the plurality of groups of ring teeth b gradually decrease along the axis direction of the conical table b; a mounting rod, which is installed between the conical tables a and the conical tables b; a linear driving member a, which is installed in the movable shell; a sliding rod, which is installed at the output end of the linear driving member a, and the sliding rod sleeve is arranged on the outside of the mounting rod; a gear, which is rotatably arranged on the outside of the sliding rod, and the gear is meshed with the ring teeth a and the ring teeth b.

[0010] Furthermore, the pushing unit includes: a slide groove, which is opened on both sides of the shell; a guide bar, which is installed on the outside of the movable shell and slides in the slide groove; an elastic connecting member b, which is arranged between the movable shell and the baffle; and a locking assembly, which locks the position of the movable shell.

[0011] Preferably, the lock assembly includes: an avoidance groove a, which is provided on both sides of the shell; a card slot a, which is provided on the guide bar, and the card slot a corresponds to the avoidance groove a in position; a rotating ring, which is rotatably arranged on the outside of the shell, and two groups of buffer grooves b are provided in the rotating ring; an elastic connecting member c, which is arranged in the buffer groove b; a moving plate, which is arranged in the buffer groove b and is elastically connected to the elastic connecting member c; a connecting rod, which is installed on the moving plate; a positioning block, which is installed on the connecting rod, and the elastic force of the elastic connecting member c drives the positioning block to be inserted into the card slot a; the bottom of the positioning block is arc-shaped, and the card slot a and the avoidance groove a are arc-shaped.

[0012] Furthermore, the present invention also includes a protective unit, which protects the injection unit, and the protective unit includes: a fixed rod, which is installed on both sides of the shell, and a mounting groove and a positioning hole a are provided in the fixed rod; a rotating disk, which is rotatably arranged in the mounting groove, and a buffer groove a is provided in the rotating disk; an elastic connecting member d, which is arranged in the buffer groove a; a positioning ball d, which is arranged at the free end of the elastic connecting member d, and the elastic connecting member d drives the positioning ball d to be inserted into the positioning hole a; a fixed sleeve, which is installed on the rotating disk; a sliding sleeve, which is slidably arranged in the fixed sleeve; a protective shell, which is installed on the sliding sleeve; and a fixed cylinder, which is installed on the protective shell.

[0013] Preferably, a square groove and two groups of positioning holes e are provided in the fixed sleeve, the sliding sleeve slides in the square groove, a buffer groove e is provided in the sliding sleeve, an elastic connecting piece e is provided in the buffer groove e, and a positioning ball e is provided at the free end of the elastic connecting piece e to be inserted into the positioning hole e.

[0014] Furthermore, an adjusting block is threadedly connected to the fixing tube, a through slot is provided in the adjusting block, and the adjusting block adjusts the depth of the injection needle penetrating into the subcutaneous tissue.

[0015] The beneficial effects of the present invention are: (1) In the present invention, when it is necessary to switch to another type of charging port for charging, the pressing rod is pressed downward to drive the pressing rod to move downward, the elastic connecting member a is compressed, and the guide rod is driven to slide along the corrugated guide rail b. The pressing rod is released, and the guide rod is driven to slide along the corrugated guide rail a under the action of the elastic connecting member a, thereby driving the pressing rod to rotate 90° along its axis, driving the rotating table to rotate 90°, and then driving another group of charging ports to correspond to the position of the socket slot, switching to another type of charging port for charging, and thus adapting to a variety of different charging connectors, which is convenient for use of the device. The device is easy to use and easy to carry.

[0016] (2) In the present invention, there are charging ports at A, B, and C, but no charging port is set at D. When D moves to the socket slot, the socket slot is closed to prevent dust in the air from entering the shell through the socket slot, thereby achieving a dust-proof effect and preventing dust in the air from contacting the charging port, thereby protecting the charging port and extending the service life of the charging port.

[0017] (3) The present invention is that when the gear is meshed with the ring teeth a and b of the M group, the power of the rotating driving member a is output to the rotating sleeve at a low speed (low gear), and when the gear is meshed with the ring teeth a and b of the N group, the power of the rotating driving member a is output to the rotating sleeve at a high speed (high gear); the movement of the gear is driven by the linear driving member a to achieve multi-gear adjustment of the rotation speed of the rotating sleeve; the low gear is used in the exhaust process, and the rotating sleeve rotates at a low speed, so that the liquid in the liquid medicine tube is slowly ejected through the injection needle to exhaust the gas.

[0018] (4) The present invention allows the end adjustment block of the protective shell to contact the skin by holding the push injection device. At this time, the rotating ring is rotated to drive the positioning block to leave the card slot a and enter the avoidance slot a. The elastic force of the elastic connecting member b drives the movable shell to move forward rapidly, driving the injection needle to move rapidly and insert into the skin. Compared with the slow insertion method, the puncture time is greatly shortened, effectively reducing the patient's pain.

[0019] (5) In the present invention, during the push injection process, the adjustment block is in contact with the skin, and the length of the injection needle protruding from the adjustment block is the depth of the injection needle penetrating into the subcutaneous tissue. Since the length of the injection needle is fixed, by rotating the adjustment block, the adjustment block is driven to move upward or downward according to the principle of thread transmission, and the length of the injection needle protruding from the adjustment block can be adjusted, thereby adjusting the depth of the injection needle penetrating into the subcutaneous tissue. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the housing and the charging unit of the present invention; Figure 3 This is a schematic diagram of the charging unit structure of the present invention; Figure 4 It is a schematic diagram of the trajectory expansion of the corrugated guide rail a and the corrugated guide rail b of the present invention; Figure 5 It is a cross-sectional schematic diagram of the movable shell of the present invention; Figure 6 For the present invention Figure 5 The enlarged schematic diagram of point A in the middle; Figure 7 It is a schematic structural diagram of the conical platform b and the conical platform a of the present invention; Figure 8 It is a schematic diagram of the explosion structure of the present invention; Fig. 9 This is a schematic diagram of the structure of the protection unit of the present invention; Fig.10 It is a schematic diagram of the cross-sectional structure of the fixed rod and the rotating disk of the present invention; Fig.11 It is a schematic diagram of the structure of the fixed sleeve and the sliding sleeve of the present invention; Fig.12This is a schematic diagram of the structure of the lock assembly of the present invention; Fig.13 For the present invention Fig.12 The enlarged schematic diagram of point B in the middle; Fig.14 This is a schematic diagram of the structure of the fixed cylinder and the adjusting block of the present invention; Fig.15 This is a schematic diagram of the location of the charging port on the rotating table of the present invention; Fig.16 This is a schematic diagram of the structure of the medicine liquid tube of the present invention; Fig.17 It is a schematic diagram of the conductive core structure of the present invention; Fig.18 Schematic diagram of the second needle of the present invention.

[0021] Reference numerals 1. Shell; 100. Conductive core; 101. Fixed seat; 102. Transparent tube; 103. Needle body; 11. Socket slot; 12. Avoidance slot a; 13. Slide slot; 2. Injection unit; 21. Moving shell; 211. Threaded sleeve; 22. Fixed block c; 221. Slot b; 23. Screw; 231. Incision; 232. Push block; 24. Rotating sleeve; 25. Fixed shell; 251. Through hole; 26. Liquid medicine tube; 261. Sealing plug; 262. Piston; 27 , mounting sleeve; 271, injection needle; 28, drive assembly; 280, fixed strip a; 281, rotary drive member a; 282, cone stage a; 2821, ring gear a; 283, cone stage b; 2831, ring gear b; 284, mounting rod; 285, linear drive member a; 286, sliding rod; 287, gear; 288, fixed strip b; 3, push unit; 31, guide strip; 311, slot a; 32, elastic connector b; 33, lock assembly; 3 31. rotating ring; 3311. buffer groove b; 332. elastic connector c; 333. moving plate; 334. connecting rod; 335. positioning block; 4. charging unit; 41. baffle; 42. rotating table; 43. charging port; 431. conductive sheet; 44. elastic connector a; 46. pressing assembly; 461. pressing rod; 462. fixing block a; 4621. corrugated guide rail a; 463. fixing block b; 4631. corrugated guide rail b; 464. guide rod ; 5. Protection unit; 51. Fixed rod; 511. Mounting groove; 512. Positioning hole a; 52. Rotating disk; 521. Buffer groove a; 53. Elastic connector d; 54. Positioning ball d; 55. Fixed sleeve; 551. Square groove; 552. Positioning hole e; 56. Sliding sleeve; 561. Buffer groove e; 562. Elastic connector e; 563. Positioning ball e; 57. Protection shell; 571. Rubber pad; 58. Fixed cylinder; 59. Adjustment block; 591. Through groove. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0024] Embodiment 1 like Figure 1-Figure 6 As shown, this embodiment provides a rechargeable push injection device, including a housing 1, an injection unit 2, the injection unit 2 is arranged in the housing 1; a push unit 3, the push unit 3 is arranged in the housing 1; a charging unit 4, the charging unit 4 is arranged in the housing 1; Preferably, Figure 1-Figure 4 As shown, the charging unit 4 includes: a baffle 41, which is arranged in the shell 1; a rotating platform 42, which is rotatably arranged in the shell 1; a charging port 43, wherein a plurality of charging ports 43 are installed on the outer side of the rotating platform 42, a socket slot 11 is opened on one side of the shell 1, and the plurality of charging ports 43 correspond to the positions of the socket slot 11; an elastic connecting member a44, which is arranged between the baffle 41 and the rotating platform 42; a storage battery, which is arranged in the shell 1; a pressing component 46, which drives the rotating platform 42 to rotate so that the plurality of charging ports 43 are aligned with the socket slot 11 in sequence, and the aligned charging ports 43 are electrically connected to the storage battery; In this embodiment, there are three groups of charging ports 43, and the three groups of charging ports 43 are of different types (specifically, they can be set as MicroUSB interface, Type-c interface, Lightning interface), and the three groups of charging ports 43 are arranged on the rotating table 42 along its axis at an angle of 90° (such as Fig.15 shown); Initially, one of the charging ports 43 corresponds to the position of the socket slot 11. When charging is required, a matching charging plug is inserted into the charging port 43, and the charging plug is connected to the power source through a wire to charge the battery; Further, such as Figure 2 and Figure 3 As shown, the pressing assembly 46 includes: a pressing rod 461, which is mounted on the rotating table 42; a fixed block a462, which is mounted in the housing 1, and a corrugated guide rail a4621 is provided on the fixed block a462; a fixed block b463, which is mounted in the housing 1, and the fixed block a462 corresponds to the fixed block b463 in position, and a corrugated guide rail b4631 is provided on the fixed block b463, and the corrugated guide rail a4621 and the corrugated guide rail b4631 are staggered; a guide rod 464, which is mounted on one side of the pressing rod 461, and the guide rod 464 slides between the corrugated guide rail a4621 and the corrugated guide rail b4631; When it is necessary to switch to another type of charging port 43 for charging, the pressing rod 461 is pressed downward to drive the pressing rod 461 to move downward, the elastic connecting member a44 is compressed, and the guide rod 464 is driven to slide along the corrugated guide rail b4631, and the pressing rod 461 is released. Under the action of the elastic connecting member a44, the guide rod 464 is driven to slide along the corrugated guide rail a4621, and then the pressing rod 461 is driven to rotate 90° along its axis, driving the rotating table 42 to rotate 90°, and then driving another group of charging ports 43 to correspond to the position of the socket slot 11, and then switching to another type of charging port 43 for charging; That is to say, the rotating table 42 can be rotated 90° by squeezing the pressing rod 461 downward for the first time and then releasing it, the rotating table 42 can be rotated 180° (relative to the initial state) by squeezing the pressing rod 461 downward for the second time and then releasing it, the rotating table 42 can be rotated 270° (relative to the initial state) by squeezing the pressing rod 461 downward for the third time and then releasing it, the rotating table 42 can be rotated 360° (restored to the initial state) by squeezing the pressing rod 461 downward for the fourth time and then releasing it. It should be noted that: Figure 4As shown, there are points a1, b1, c1, d1, e1, f1, g1 and h1 on the corrugated guide rail a4621, and points a2, b2, c2, d2, e2, f2, g2 and h2 on the corrugated guide rail b4631. In the initial state, the guide rod 464 is located at point b1. The pressing rod 461 is squeezed downward to drive the guide rod 464 to move downward and then slide along the corrugated guide rail b4631 to point c2. The pressing rod 461 is released, and the elastic force of the elastic connector a44 drives the guide rod 464 to move upward and slide along the corrugated guide rail a4621 to point d1, thereby driving the pressing rod 461 to rotate 90° along its axis. The movement trajectory of the guide rod 464 is represented by a dotted line in the figure. It should be noted that: Fig.15 As shown, there are charging ports 43 at A, B, and C, but no charging port 43 is set at D. When D moves to the socket slot 11, the socket slot 11 is closed to prevent dust in the air from entering the shell 1 through the socket slot 11, thereby achieving a dust-proof effect and preventing dust in the air from contacting the charging port 43, thereby protecting the charging port 43 and extending the service life of the charging port 43.

[0025] Embodiment 2 like Figure 1-Figure 17 As shown, the components identical or corresponding to those in the first embodiment are marked with the corresponding reference numerals in the first embodiment. For the sake of simplicity, only the differences from the first embodiment are described below. The second embodiment differs from the first embodiment in that: Preferably, Figure 5-Figure 8 As shown, the injection unit 2 in this embodiment includes: a moving shell 21; a fixed block c22, which is installed in the moving shell 21, and a slot b221 is provided in the fixed block c22; a screw 23, which is slidably arranged in the slot b221, and cutouts 231 are provided on both sides of the screw 23, and a push block 232 is installed on the screw 23; a rotating sleeve 24, which is installed on the outside of the screw 23, and the rotating sleeve 24 is threadedly connected to the screw 23; a fixed shell 25, which is installed in the moving shell 21, and a through hole 251 is provided at one end of the fixed shell 25; a liquid medicine tube 26, which is placed in the fixed shell 25, and a threaded sleeve 211 is installed on the moving shell 21; a mounting sleeve 27, which is threadedly connected to the threaded sleeve 211, and an injection needle 271 is installed on the mounting sleeve 27; a driving assembly 28, which drives the rotating sleeve 24 to rotate. It should be noted that: Fig.16As shown, a sealing plug 261 is provided at one end of the liquid medicine tube 26, and a piston 262 is provided at the other end of the liquid medicine tube 26. Initially, the liquid medicine tube 26 is placed in the fixed shell 25, and the mounting sleeve 27 is mounted on the threaded sleeve 211. At this time, one end of the injection needle 271 is inserted into the sealing plug 261 to contact the liquid medicine in the liquid medicine tube 26. It should be noted that the end of the injection needle 271 inserted into the sealing plug 261 should not be too long, and it is sufficient to contact the liquid medicine in the liquid medicine tube 26 to achieve communication. Further, such as Figure 6 As shown, the driving assembly 28 includes: a rotating driving member a281, which is installed in the moving shell 21; a conical platform a282, which is installed at the output end of the rotating driving member a281, and a plurality of groups of ring teeth a2821 are installed on the surface of the conical platform a282, and the diameters of the plurality of groups of ring teeth a2821 gradually decrease along the axis direction of the conical platform a282; a conical platform b283, which is installed on the rotating sleeve 24, and a plurality of groups of ring teeth b2831 are provided on the surface of the conical platform b283, and the diameters of the plurality of groups of ring teeth b2831 gradually decrease along the axis direction of the conical platform b283; a mounting rod 284, which is installed between the conical platform a282 and the conical platform b283. 3; linear drive member a285, the linear drive member a285 is installed in the moving shell 21; sliding rod 286, the sliding rod 286 is installed at the output end of the linear drive member a285, and the sliding rod 286 is sleeved on the outside of the mounting rod 284; gear 287, the gear 287 is rotatably arranged on the outside of the sliding rod 286, the gear 287 is meshed with the ring gear a2821 and the ring gear b2831, a fixed bar a280 and a fixed bar b288 are installed in the moving shell 21, the rotating sleeve 24 is rotatably arranged on the fixed bar a280, the rotating drive member a281 and the linear drive member a285 are installed on the fixed bar b288, and the mounting rod 284 is installed between the fixed bar a280 and the fixed bar b288; Preferably, Figure 8 , Fig.12 and Fig.13 As shown, the pushing unit 3 includes: a slide groove 13, which is opened on both sides of the shell 1; a guide bar 31, which is installed on the outside of the moving shell 21 and slides in the slide groove 13; an elastic connecting member b32, which is arranged between the moving shell 21 and the baffle 41; and a locking assembly 33, which locks the position of the moving shell 21.

[0026] like Fig.12 and Fig.13As shown, the lock assembly 33 includes: an avoidance groove a12, which is provided on both sides of the housing 1; a clamping groove a311, which is provided on the guide bar 31, and the clamping groove a311 corresponds to the avoidance groove a12; a rotating ring 331, which is rotatably provided on the outer side of the housing 1, and two groups of buffer grooves b3311 are provided in the rotating ring 331; and an elastic connecting member c332, which is provided in the buffer groove b3311. A moving plate 333 is provided in the buffer groove b3311 and is elastically connected to the elastic connecting member c332; a connecting rod 334 is mounted on the moving plate 333; a positioning block 335 is mounted on the connecting rod 334, and the elastic force of the elastic connecting member c332 drives the positioning block 335 to be inserted into the slot a311; the bottom of the positioning block 335 is arc-shaped, and the slot a311 and the avoidance groove a12 are arc-shaped; It should be noted that: in the initial state, the elastic connector b32 is compressed, the slot a311 corresponds to the position of the avoidance slot a12, and the elastic force of the elastic connector c332 drives the positioning block 335 to be inserted into the slot a311, thereby locking the movable shell 21. When the positioning block 335 leaves the slot a311, the elastic force of the elastic connector b32 drives the movable shell 21 to move.

[0027] The present embodiment further includes a protection unit 5, which protects the injection unit 2. The protection unit 5 includes: a fixing rod 51, which is installed on both sides of the housing 1, and has a mounting groove 511 and a positioning hole a512; a rotating disk 52, which is rotatably arranged in the mounting groove 511, and has a buffer groove a521; an elastic connector d53, which is arranged in the buffer groove a521; a positioning ball d54, which is arranged at the free end of the elastic connector d53, and the elastic connector d53 drives the positioning ball d54. Insert into the positioning hole a512; a fixed sleeve 55, the fixed sleeve 55 is installed on the rotating disk 52; a sliding sleeve 56, the sliding sleeve 56 is slidably arranged in the fixed sleeve 55; a protective shell 57, the protective shell 57 is installed on the sliding sleeve 56; a fixed cylinder 58, the fixed cylinder 58 is installed on the protective shell 57, and a rubber pad 571 is installed on the protective shell 57. During the insertion process, the elastic force of the elastic connecting member b32 drives the movable shell 21 to move forward rapidly, driving the injection needle 271 to quickly insert into the skin, at this time, the mounting sleeve 27 hits the rubber pad 571, and the rubber pad 571 plays a role of buffering and limiting; In this embodiment, by pulling the protective shell 57 along the X direction, the sliding sleeve 56 is driven to slide outward along the square groove 551, so that one end of the protective shell 57 is away from one end of the housing 1, and then the protective shell 57 is rotated to rotate downward around the axis of the fixing rod 51 (its state is as shown in FIG. Figure 8As shown), one end of the housing 1 and the movable housing 21 is exposed, and the liquid medicine tube 26 is placed in the fixed housing 25, and the mounting sleeve 27 is mounted on the threaded sleeve 211 to achieve the installation of the liquid medicine tube 26 and the mounting sleeve 27; Then, the protective shell 57 is rotated so that its axis coincides with the housing 1, and the protective shell 57 is pushed so that one end of the protective shell 57 contacts one end of the housing 1 (restored to the original state); The cone-shaped platform a282 is driven to rotate by the rotating driving member a281, which drives the ring gear a2821 to rotate, drives the gear 287 to rotate, drives the ring gear b2831 to rotate, drives the cone-shaped platform b283 to rotate, and then drives the rotating sleeve 24 to rotate. According to the principle of thread transmission, the screw rod 23 is driven to move along the X direction, drives the push block 232 to pass through the through hole 251 to squeeze the piston 262, and the liquid medicine in the liquid medicine tube 26 is slightly ejected through the injection needle 271, and the air in the injection needle 271 is discharged; It should be noted that: Figure 7 As shown, when the gear 287 is meshed with the ring gear a2821 and the ring gear b2831 of the M group, the power of the rotary drive member a281 is output to the rotary sleeve 24 at a low speed (low gear), and when the gear 287 is meshed with the ring gear a2821 and the ring gear b2831 of the N group, the power of the rotary drive member a281 is output to the rotary sleeve 24 at a high speed (high gear); the movement of the gear 287 is driven by the linear drive member a285 to achieve multi-gear adjustment of the rotation speed of the rotary sleeve 24; the low gear is used in the exhaust process, and the rotary sleeve 24 rotates at a low speed, so that the liquid medicine in the liquid medicine tube 26 is slowly ejected through the injection needle 271 to exhaust the gas; like Fig.10 and Fig.11 As shown, a square groove 551 and two groups of positioning holes e552 are provided in the fixed sleeve 55, and the sliding sleeve 56 slides in the square groove 551. A buffer groove e561 is provided in the sliding sleeve 56, and an elastic connecting member e562 is provided in the buffer groove e561. A positioning ball e563 inserted into the positioning hole e552 is provided at the free end of the elastic connecting member e562. It should be noted that: the elastic connector d53 drives the positioning ball d54 to insert into the positioning hole a512, so as to realize the positioning of the rotating disk 52, prevent the rotating disk 52 from rotating at will, and limit the protective shell 57. Similarly, the elastic connector e562 elastically drives the positioning ball e563 to insert into the positioning hole e552, so as to realize the positioning of the sliding sleeve 56, prevent the sliding sleeve 56 from sliding at will in the square groove 551, and limit the protective shell 57. like Fig.14As shown, the fixing cylinder 58 is threadedly connected with an adjusting block 59, and a through slot 591 is provided in the adjusting block 59. The adjusting block 59 adjusts the depth of the injection needle 271 penetrating into the subcutaneous tissue. During the push injection process, the adjusting block 59 is in contact with the skin, and the length of the injection needle 271 exposed outside the adjusting block 59 is the depth of the injection needle 271 penetrating into the subcutaneous tissue. Fig.14 As shown, since the length of the injection needle 271 is fixed, by rotating the adjustment block 59, according to the principle of thread transmission, the adjustment block 59 is driven to move upward or downward, thereby adjusting the length of the injection needle 271 exposed outside the adjustment block 59 and adjusting the depth of the injection needle 271 penetrating the subcutaneous tissue; By holding the push injection device, the end adjustment block 59 of the protective shell 57 is brought into contact with the skin. At this time, the rotating ring 331 is rotated to drive the positioning block 335 to leave the card slot a311 and enter the avoidance slot a12. The elastic force of the elastic connecting piece b32 drives the movable shell 21 to move forward rapidly, driving the injection needle 271 to move rapidly and insert into the skin. Compared with the slow insertion method, the puncture time is greatly shortened, and the patient's pain is effectively reduced.

[0028] The battery is arranged in the moving shell 21 to supply power to the electrical components such as the rotating drive member a281 and the linear drive member a285. Three sets of conductive sheets 431 are arranged on the rotating platform 42. The conductive sheets 431 are located below the charging port 43. The conductive sheets 431 are connected to the charging port 43. Fig.17 As shown, a group of conductive cores 100 are provided in the shell 1, and the conductive core 100 is located below the socket slot 11. The conductive core 100 is connected to the battery through a wire. In the initial state, the conductive sheet 431 below the charging port 43 at the socket slot 11 is in contact with the conductive core 100 (conductive), and the current direction during charging is: charging plug → charging port 43 → conductive sheet 431 → conductive core 100 → wire → battery; the length of the wire in the shell 1 can be set longer, and after the movable shell 21 moves forward during the insertion process, its length is sufficient to connect the conductive core 100 and the battery.

[0029] Working steps: Step 1, charging process: when it is necessary to switch to other types of charging ports 43 for charging, by squeezing the pressing rod 461 downward, the pressing rod 461 is driven to move downward, the elastic connecting member a44 is compressed, and the guide rod 464 is driven to slide along the corrugated guide rail b4631, and the pressing rod 461 is released. Under the action of the elastic connecting member a44, the guide rod 464 is driven to slide along the corrugated guide rail a4621, and then the pressing rod 461 is driven to rotate 90° along its axis, driving the rotating table 42 to rotate 90°, and then driving another group of charging ports 43 to correspond to the position of the socket slot 11, and then switching to other types of charging ports 43 for charging, so that it can adapt to a variety of different charging connectors, which is convenient for the use of the device; Step 2, installation process: pull the protective shell 57 along the X direction, drive the sliding sleeve 56 to slide outward along the square groove 551, so that one end of the protective shell 57 is away from one end of the housing 1, and then rotate the protective shell 57 to rotate downward around the axis of the fixing rod 51 (its state is as shown in FIG. Figure 8 As shown), one end of the housing 1 and the movable housing 21 is exposed, and the liquid medicine tube 26 is placed in the fixed housing 25, and the mounting sleeve 27 is mounted on the threaded sleeve 211 to achieve the installation of the liquid medicine tube 26 and the mounting sleeve 27; Then, the protective shell 57 is rotated so that its axis coincides with the housing 1, and the protective shell 57 is pushed so that one end of the protective shell 57 contacts one end of the housing 1 (restored to the original state); Step 3, exhaust process: the rotating driving member a281 drives the conical table a282 to rotate, drives the ring gear a2821 to rotate, drives the gear 287 to rotate, drives the ring gear b2831 to rotate, drives the conical table b283 to rotate, and then drives the rotating sleeve 24 to rotate. According to the principle of thread transmission, the screw rod 23 is driven to move along the X direction, and the driving block 232 is driven to pass through the through hole 251 to squeeze the piston 262, so that the liquid in the liquid tube 26 is slightly ejected through the injection needle 271, and the air in the injection needle 271 is discharged; Step 4, insertion process: hold the push injection device and make the end adjustment block 59 of the protective shell 57 contact the skin. At this time, rotate the rotating ring 331 to drive the positioning block 335 to leave the card slot a311 and enter the avoidance slot a12. The elastic force of the elastic connecting member b32 drives the movable shell 21 to move forward quickly, driving the injection needle 271 to move quickly and insert into the skin. Compared with the slow insertion method in the prior art, the puncture time is greatly shortened, and the pain of the patient is effectively reduced. Step 5, injection process: the rotating driving member a281 drives the conical table a282 to rotate, drives the rotating sleeve 24 to rotate, and according to the principle of thread transmission, drives the screw 23 to move along the X direction, drives the pushing block 232 to pass through the through hole 251 to squeeze the piston 262, and injects the liquid medicine in the liquid medicine tube 26 into the subcutaneous tissue of the patient through the injection needle 271 to complete the injection of the medicine; It should be noted that: after the injection process, the injection device is manually moved to make the injection needle 271 leave the subcutaneous tissue, then the protective shell 57 is removed, the used medicine tube 26 and the mounting sleeve 27 are removed, and the movable shell 21 is pushed along the -X direction. The elastic connecting member b32 is compressed to make the slot a311 correspond to the avoidance slot a12, and the elastic force of the elastic connecting member c332 drives the positioning block 335 to be inserted into the slot a311 to lock the movable shell 21.

[0030] It should be noted that: in addition to using the mounting sleeve 27 and the injection needle 271, the present embodiment can also use a second type of needle, such as Fig.18As shown, the needle includes a fixing seat 101, a transparent tube 102 and a needle body 103. When in use, the protective shell 57 is first rotated to rotate downward around the axis of the fixing rod 51 (the state is as shown in FIG. Figure 8 As shown, the protective shell 57 is moved away), the fixing seat 101 is installed on the threaded sleeve 211, and then the needle body 103 is manually inserted into the skin, and then the injection of the drug is completed through the push injection process; A puncture needle is provided in the fixing seat 101. When the fixing seat 101 is installed on the threaded sleeve 211, the puncture needle is inserted into the sealing plug 261 and contacts the liquid medicine in the liquid medicine tube 26. The puncture needle is connected to the transparent tube 102. This embodiment can adopt two kinds of needles, and the user can freely choose according to needs, which improves the applicability of the device.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A rechargeable push injection device, comprising a housing (1), characterized in that: Also includes: An injection unit (2), the injection unit (2) being arranged in the housing (1); A pushing unit (3), wherein the pushing unit (3) is arranged in the housing (1); A charging unit (4), the charging unit (4) being arranged in the housing (1); The charging unit (4) comprises: a baffle (41), the baffle (41) being arranged in the housing (1); A rotating platform (42), the rotating platform (42) being rotatably disposed in the housing (1); Charging ports (43), wherein a plurality of groups of the charging ports (43) are installed on the outside of the rotating platform (42), a socket slot (11) is provided on one side of the shell (1), and the plurality of groups of the charging ports (43) correspond in position to the socket slot (11); an elastic connecting member a (44), wherein the elastic connecting member a (44) is arranged between the baffle plate (41) and the rotating platform (42); A storage battery, wherein the storage battery is arranged in the housing (1); A pressing assembly (46) drives the rotating platform (42) to rotate so that the plurality of charging ports (43) are aligned with the socket slots (11) in sequence, and the aligned charging ports (43) are electrically connected to the storage battery.

2. A rechargeable push injection device according to claim 1, characterized in that: The pressing assembly (46) comprises: A pressing rod (461), the pressing rod (461) being mounted on the rotating platform (42); A fixed block a (462), the fixed block a (462) being installed in the housing (1), and a corrugated guide rail a (4621) being provided on the fixed block a (462); a fixed block b (463), the fixed block b (463) being installed in the housing (1), the fixed block a (462) corresponding to the fixed block b (463) in position, the fixed block b (463) being provided with a corrugated guide rail b (4631), the corrugated guide rail a (4621) being staggered with the corrugated guide rail b (4631); A guide rod (464), the guide rod (464) being mounted on one side of the pressing rod (461), the guide rod (464) sliding between the corrugated guide rail a (4621) and the corrugated guide rail b (4631).

3. A rechargeable push injection device according to claim 2, characterized in that: The injection unit (2) comprises: A movable shell (21), wherein the movable shell (21) is arranged inside the housing (1); A fixed block c (22), the fixed block c (22) being installed in the movable shell (21), and a slot b (221) being provided in the fixed block c (22); A screw rod (23), the screw rod (23) being slidably disposed in the clamping groove b (221), notches (231) being provided on both sides of the screw rod (23), and a pushing block (232) being installed at one end of the screw rod (23); A rotating sleeve (24), the rotating sleeve (24) being mounted on the outside of the screw rod (23), the rotating sleeve (24) being threadedly connected to the screw rod (23); A fixed shell (25), the fixed shell (25) being installed in the movable shell (21), and a through hole (251) being formed at one end of the fixed shell (25); A medicine liquid pipe (26), the medicine liquid pipe (26) being placed in the fixed shell (25), and a threaded sleeve (211) being installed at one end of the movable shell (21); A mounting sleeve (27), the mounting sleeve (27) being threadedly connected to the threaded sleeve (211), and an injection needle (271) being mounted on the mounting sleeve (27); A driving assembly (28), wherein the driving assembly (28) drives the rotating sleeve (24) to rotate.

4. A rechargeable push injection device according to claim 3, characterized in that: The driving assembly (28) comprises: A rotating driving member a (281), wherein the rotating driving member a (281) is installed in the moving shell (21); A conical platform a (282), the conical platform a (282) being mounted on the output end of the rotary drive member a (281), a plurality of groups of ring teeth a (2821) being mounted on the surface of the conical platform a (282), the diameters of the plurality of groups of ring teeth a (2821) gradually decreasing along the axis direction of the conical platform a (282); A conical platform b (283), the conical platform b (283) being mounted on the rotating sleeve (24), a plurality of groups of ring teeth b (2831) being provided on the surface of the conical platform b (283), the diameters of the plurality of groups of ring teeth b (2831) gradually decreasing along the axis direction of the conical platform b (283); A mounting rod (284), the mounting rod (284) being mounted between the conical platform a (282) and the conical platform b (283); A linear drive member a (285), wherein the linear drive member a (285) is installed in the moving shell (21); A sliding rod (286), the sliding rod (286) being mounted on the output end of the linear drive member a (285), the sliding rod (286) being sleeved on the outside of the mounting rod (284); A gear (287), wherein the gear (287) is mounted on the sliding rod (286), and the gear (287) is meshed with the ring gear a (2821) and the ring gear b (2831).

5. A rechargeable push injection device according to claim 4, characterized in that: The pushing unit (3) comprises: A slide groove (13), wherein the slide groove (13) is provided on both sides of the housing (1); A guide bar (31), the guide bar (31) being mounted on the outside of the movable shell (21), the guide bar (31) sliding in the slide groove (13); an elastic connecting member b (32), wherein the elastic connecting member b (32) is arranged between the movable shell (21) and the baffle (41); A locking assembly (33), the locking assembly (33) being used to lock the moving shell (21).

6. A rechargeable push injection device according to claim 5, characterized in that: The locking assembly (33) comprises: Avoidance grooves a (12), the avoidance grooves a (12) being provided on both sides of the shell (1); A card slot a (311), the card slot a (311) being formed on the guide strip (31), the card slot a (311) corresponding in position to the avoidance slot a (12); A rotating ring (331), the rotating ring (331) being rotatably arranged outside the housing (1), and two groups of buffer grooves b (3311) being provided inside the rotating ring (331); An elastic connecting member c (332), wherein the elastic connecting member c (332) is arranged in the buffer groove b (3311); A moving plate (333), the moving plate (333) being arranged in the buffer groove b (3311) and elastically connected to the elastic connecting member c (332); A connecting rod (334), wherein the connecting rod (334) is mounted on the moving plate (333); A positioning block (335), the positioning block (335) being mounted on the connecting rod (334), wherein the elastic force of the elastic connecting member c (332) drives the positioning block (335) to be inserted into the slot a (311); The bottom of the positioning block (335) is arc-shaped, and the clamping groove a (311) and the avoidance groove a (12) are also arc-shaped.

7. A rechargeable push injection device according to claim 6, characterized in that: It also comprises a protection unit (5), wherein the protection unit (5) protects the injection unit (2).

8. A rechargeable push injection device according to claim 7, characterized in that: The protection unit (5) comprises: A fixing rod (51), the fixing rod (51) being mounted on both sides of the housing (1), the fixing rod (51) being provided with a mounting groove (511) and a plurality of positioning holes a (512); A rotating disk (52), the rotating disk (52) being rotatably disposed in the mounting groove (511), and a buffer groove a (521) being provided in the rotating disk (52); an elastic connecting member d (53), wherein the elastic connecting member d (53) is disposed in the buffer groove a (521); A positioning ball d (54), the positioning ball d (54) being arranged at a free end of the elastic connecting member d (53), wherein the elastic force of the elastic connecting member d (53) drives the positioning ball d (54) to be inserted into the positioning hole a (512); A fixing sleeve (55), the fixing sleeve (55) being mounted on the rotating disk (52); A sliding sleeve (56), the sliding sleeve (56) being slidably disposed in the fixed sleeve (55); A protective shell (57), wherein the protective shell (57) is mounted on the sliding sleeve (56); A fixing cylinder (58), wherein the fixing cylinder (58) is mounted on the protective shell (57).

9. A rechargeable push injection device according to claim 8, characterized in that: The fixed sleeve (55) is provided with a square groove (551) and two groups of positioning holes e (552), and the sliding sleeve (56) slides in the square groove (551); A buffer groove e (561) is provided in the sliding sleeve (56), an elastic connecting piece e (562) is provided in the buffer groove e (561), and a positioning ball e (563) inserted into the positioning hole e (552) is provided at a free end of the elastic connecting piece e (562).

10. A rechargeable push injection device according to claim 9, characterized in that: An adjusting block (59) is threadedly connected to the fixing cylinder (58), a through slot (591) is provided in the adjusting block (59), and the adjusting block (59) adjusts the depth of penetration of the injection needle (271) into the subcutaneous tissue.

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