CN115721815A - Injection positioner - Google Patents

Abstract

An injection positioner effectively solves the problem that the angle and the needle insertion depth of an injector are inconvenient to control when medical care personnel inject medicine to a patient; the automatic bearing device comprises a main body, a transmission groove is formed in the left side of the main body, a abdicating groove is formed in the left side of the main body, a rotating plate is connected to the main body in a rotating mode, an inverted U-shaped block is arranged on the upper end of the rotating plate, a bearing block is connected to the inner side of the inverted U-shaped block in a sliding mode, a rectangular groove is formed in the upper side of the bearing block, a sliding block is connected to the upper end of the rectangular groove in a sliding mode, an upper clamping plate is arranged at the left end of the sliding block, a lower clamping plate is arranged at the left end of the bearing block, a main clamping plate is arranged at the right end of the bearing block, an auxiliary clamping plate is arranged at the right end of the sliding block, a rotating shaft is connected to the rotating plate in a rotating mode, a rotating rod is arranged at the left side of the rotating shaft, a pushing column is arranged at the left end of the rotating rod, a handle is arranged at the lower end of the main body, a pressing block is connected to the upper side of the pressing block, a moving plate, a transmission shaft is arranged on the moving plate, and the rotating plate can rotate along with the rotating shaft in sequence; the invention has simple structure, convenient operation, novel conception and strong practicability.

Description

Injection positioner

Technical Field

The invention relates to the technical field of medical auxiliary instruments, in particular to an injection positioner.

Background

When an endocrine clinical patient is treated, the patient is required to be injected with drugs, and the common injection methods mainly include five methods, including intradermal injection, subcutaneous injection, intramuscular injection, intravenous injection and femoral vein injection, and different injection methods have different needle insertion angles, namely 1, intradermal injection: the needle inserting angle is that the inclined plane of the needle head faces upwards and forms an angle of 5 degrees with the skin. 2. Subcutaneous injection: the needle insertion angle is 30-40 degrees, and the depth is 1/2-2/3 of the needle head. 3. Intramuscular injection: the needle is inserted vertically, namely the needle insertion angle is 90 degrees, and the needle insertion depth is 2/3 of the needle head; 4. intravenous injection: the needle inserting angle is 15-30 degrees; 5. femoral vein injection method: the needle inserting angle is 45 degrees or 90 degrees;

when treating a patient, because the injection method is different, the adopted angle is different from the needle insertion depth, the operation of medical personnel unskilled in operation often cannot reach the required clinical specification, and the hand shaking easily in the injection process causes the deviation of the injector, causes the adverse reaction after the patient injects the medicine, and brings inconvenience to the nursing treatment of the patient.

Disclosure of Invention

In view of the above situation, the present invention aims to provide an injection positioner, which effectively solves the problem of inconvenient control of the angle and the needle insertion depth of an injector when medical care personnel injects a medicine to a patient.

The technical scheme includes that the device comprises a triangular main body, wherein a transmission groove is formed in the left side of the main body, a abdicating groove with an opening facing left and communicated with the transmission groove is formed in the left side of the main body, a rotating plate in the up-and-down direction is connected to the main body through an arc plate in a rotating mode and is located in the abdicating groove, an inverted U-shaped block in the up-and-down direction is fixed on the left side of the upper end of the rotating plate through a connecting block in the left-and-right direction, a bearing block in the up-and-down direction is connected to the inner side of the inverted U-shaped block in a sliding mode, a rectangular groove in the left-and-right direction is formed in the upper side of the bearing block, a sliding block is connected to the upper end of the rectangular groove in a sliding mode, two upper clamping plates which are opposite up and down are arranged at the left end of the bearing block, and two lower clamping plates which are opposite up and down and located below the rectangular groove are arranged at the left end of the bearing block;

the bearing block right-hand member be equipped with the main clamp plate that corresponds with the lower plate, main clamp plate can reciprocate, the slider right-hand member is equipped with vice clamp plate, the width of direction is less than the width of direction about the main clamp plate about the vice clamp plate, the rotor plate is changeed and is connected with the axial pivot about controlling, the pivot left side is equipped with a plurality of bull sticks of following its circumferencial direction equipartition, the one side that the pivot axle center was kept away from to the bull stick left end is equipped with the ejector pin, the ejector pin can contact with vice clamp plate and main clamp plate up end, the length of the fore-end ejector pin left and right directions is greater than the length of all the other ejector pins left and right directions, the main part lower extreme is equipped with the grab handle of falling L shape, grab handle upside sliding connection has the pressing block, pressing block upper end is equipped with the interior transmission shaft of inserting of drive groove, axial and rotatable transmission shaft about the movable plate is equipped with the movable plate, the rotor plate can rotate along with the rotation of transmission shaft in proper order with the movable plate.

The invention is convenient for medical personnel to adjust the needle inserting angle of the injector according to different injection methods, and when the injector is inserted, the angle position of the injector is fixed and inconvenient, so that the injector is prevented from sliding in the process of injecting liquid medicine, the patient is prevented from being injured, the adjustment of the needle inserting depth by the medical personnel according to the requirement is facilitated, the use of the medical personnel is facilitated, and the waste of medicine injection caused by the nonstandard needle inserting depth is prevented.

Drawings

Fig. 1 is an isometric view of the present invention.

FIG. 2 is a front elevational perspective view of the invention in full section.

Figure 3 is a left isometric view in partial cutaway of the present invention.

FIG. 4 is a front elevational perspective view of the invention in full section.

FIG. 5 is a front elevational, perspective view, in full section, of the present invention.

Figure 6 is a left side elevational view in partial cutaway of the present invention.

Fig. 7 is a left side view of the invention in partial cutaway.

Fig. 8 is a detail view of the invention.

Fig. 9 is a detail view of the present invention.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

The structure is shown in fig. 1 to 9, and comprises a triangular main body 1, wherein a transmission groove 2 is formed in the left side of the main body 1, a abdicating groove with an opening facing left and communicated with the transmission groove 2 is formed in the left side of the main body 1, the main body 1 is rotatably connected with a rotating plate 4 in the vertical direction through an arc-shaped plate 3, the rotating plate 4 is positioned in the abdicating groove, an inverted U-shaped block 6 in the vertical direction is fixed on the left side of the upper end of the rotating plate 4 through a connecting block 5 in the horizontal direction, a bearing block 7 in the vertical direction is slidably connected to the inner side of the inverted U-shaped block 6, a rectangular groove 8 in the vertical direction and communicated with the left and right is formed in the upper side of the bearing block 7, a sliding block 9 is slidably connected to the upper end of the rectangular groove 8, two upper clamping plates 10 which are opposite to each other are arranged at the left end of the sliding block 9, and two lower clamping plates 11 which are opposite to each other and positioned below the rectangular groove 8 are arranged at the left end of the bearing block 7;

the right end of the bearing block 7 is provided with a main pressing plate 12 corresponding to the lower clamping plate 11, the main pressing plate 12 can move up and down, the right end of the sliding block 9 is provided with an auxiliary pressing plate 13, the width of the auxiliary pressing plate 13 in the left-right direction is smaller than that of the main pressing plate 12 in the left-right direction, the rotating plate 4 is connected with a left-right axial rotating shaft 14 in a rotating mode, the left side of the rotating shaft 14 is provided with a plurality of rotating rods 15 uniformly distributed along the circumferential direction, one side, far away from the axis of the rotating shaft 14, of the left end of each rotating rod 15 is provided with a push column 16, the push column 16 can be in contact with the upper end faces of the auxiliary pressing plate 13 and the main pressing plate 12, the length of the push column 16 in the left-right direction at the forefront end is larger than that of the other push columns 16 in the left-right direction, the lower end of the main body 1 is provided with an inverted L-shaped grab handle 17, the upper side of the grab handle 17 is connected with a pressing block 18 in a sliding mode, the upper end of the pressing block 18 is provided with a moving plate 19 inserted into the transmission groove 2, the moving plate 19 is provided with a left-right axial and rotatable transmission shaft 20, and the rotating plate 4 and the rotating shaft 14 can rotate sequentially along with the rotation of the transmission shaft 20.

For the convenience of the rotation of arc 3, main part 1 on seted up about axial arc 21, arc 3 is located arc 21, arc 21 front side lower extreme is equipped with the arc spring, the arc spring is connected with arc 3 front sides, the groove up end of stepping down is the arcwall face, rotor plate 4 and 5 up end of connecting block be with the arcwall face of stepping down the laminating of groove up end.

In order to facilitate the sliding of the bearing block 7 and the sliding block 9, the rectangular pressing groove 22 is formed in the front side of the inverted U-shaped block 6, a protruding block 23 inserted into the pressing groove 22 is arranged at the front end of the bearing block 7, the lower end of the protruding block 23 is connected with the lower end face of the pressing groove 22 through a pressure spring, a groove 24 with the upper end communicated with the rectangular groove 8 is formed in the bearing block 7, a guide column 25 is connected in the groove 24 in a sliding mode, the upper end of the guide column 25 is connected with the sliding block 9, and the lower end of the guide column 25 is connected with the lower end face of the groove 24 through a reset spring.

In order to clamp the injector conveniently, the upper clamping plate 10 and the lower clamping plate 11 are respectively provided with a through gap, the opening of the gap faces to the left, the size of the lower clamping plate 11 is larger than that of the upper clamping plate 10, and the inner sides of the two upper clamping plates 10 and the two lower clamping plates 11 are provided with elastic pads.

In order to facilitate the pushing of the pushing column 16, the pressing plate is moved, and the movement distance of the bearing block 7 is controlled, the front end face of the pressing plate on the lower side is an inclined plane with a lower front part and a higher rear part, the inclined plane with a higher front part and a lower rear part is an inclined plane with a rear part of the pressing plate on the upper side, the right end of the bearing block 7 is in threaded connection with a screw rod 26, the upper end of the screw rod 26 is rotatably connected with the main pressing plate 12, the main pressing plate 12 is in sliding connection with the bearing block 7, and the right end of the inverted U-shaped block 6 is provided with a stop block 27 which is positioned below the main pressing plate 12 and can be in contact with the lower end face of the main pressing plate 12.

In order to facilitate the movement of the moving plate 19 and to enable the rotating plate 4 to rotate along with the transmission shaft 20, the main body 1 is provided with a moving groove 28 with a downward opening and an upper end communicated with the transmission groove 2, the moving plate 19 is positioned in the moving groove 28, the rear end of the rotating plate 4 is fixedly provided with a ring gear 29 coaxial with the arc-shaped groove 21, and the transmission shaft 20 is coaxially provided with a main gear 30 which is positioned at the left side of the moving plate 19 and can be meshed with the ring gear 29.

In order to facilitate the limiting of the position of the rotating plate 4 after rotation, the lower end of the abdicating groove is connected with a rectangular block in a sliding mode, the upper end of the rectangular block is provided with a limiting tooth block 31, the limiting tooth block 31 is connected with the transmission shaft 20 in a rotating mode, and the limiting tooth block 31 can be inserted into the tooth groove of the ring gear 29.

In order to facilitate the rotation of the rotating shaft 14 and the transmission shaft 20, a transmission gear 32 located at the right of the ring gear 29 is coaxially arranged on the rotating shaft 14, an auxiliary gear 33 located at the right of the moving plate 19 is coaxially fixed on the transmission shaft 20, the auxiliary gear 33 can be meshed with the transmission gear 32, a motor is arranged at the right side of the main body 1, a rotating drum 34 is arranged at the output end of the motor, and the rotating drum 34 is in sliding connection with the transmission shaft 20.

For the convenience of use of the device, the grab handle 17 is provided with a slot 35, the pressing block 18 is connected with the right end face of the slot 35 through a supporting spring, the rear end of the grab handle 17 is provided with a supporting plate 36 in the left-right direction, the lower side of the left end of the supporting plate 36 is provided with an arc-shaped notch, the front end and the rear end of the connecting block 5 are respectively provided with an arc-shaped baffle, and the left sides of the front end of the inverted U-shaped block 6 and the upper end of the main body 1 are respectively provided with scales.

When the device is used, when the arm or the leg of a patient is injected, the device is placed on one side of the limb of the patient, a damping pad is arranged at the joint of the rotating shaft 14 and the rotating plate 4, so that the relative position between the push column 16 and the main pressing plate 12 is prevented from changing when the rotating plate 4 rotates, the injector with liquid medicine is placed on the left of the bearing block 7, the injector is inserted into the lower clamping plate 11, and the upper side of the piston rod is inserted into the upper clamping plate 10;

if the injection in the vertical direction of the patient needs to be performed, the angle does not need to be changed, the supporting plate 36 is placed on the upper side of the limb of the patient, so that the limb of the patient is attached to the notch, at the moment, if the needle insertion depth of the injector needs to be increased, the screw rod 26 is rotated clockwise, the screw rod 26 drives the lower pressing plate to move upwards, the front end of the lower pressing plate moves to a position with a corresponding scale value, and the screw rod 26 stops rotating, if the needle insertion depth of the injector needs to be reduced, the screw rod 26 is rotated anticlockwise, and the screw rod 26 drives the lower pressing plate to move downwards;

pressing the pressing block 18 to the right, the pressing block 18 driving the transmission shaft 20 to move to the right through the movable plate 19, the transmission shaft 20 driving the limiting gear block 31, the main gear 30 and the pinion 33 synchronously move to the right, so that the pinion 33 is meshed with the transmission gear 32, meanwhile, the limiting gear block is inserted into the tooth groove of the ring gear 29, at this time, the rotation of the rotating plate 4 is limited, the motor is started, the motor driving the transmission shaft 20 to rotate anticlockwise through the rotary drum 34, the transmission shaft 20 driving the rotating shaft 14 to rotate clockwise through the pinion 33 and the transmission gear 32, the rotating shaft 14 driving the plurality of pushing columns 16 to rotate clockwise through the rotary rod 15, the pushing column 16 at the forefront side is in contact with the lower pressing plate and pushes the lower pressing plate to move downwards, the lower pressing plate driving the bearing block 7 to move downwards through the screw rod 26, the bearing block 7 driving the injector to inject the needle to the limb of the patient, after the lower pressing plate is in contact with the stop block 27, the pushing column 16 at the forefront side moves downwards to the limit position, at this time, the rotating shaft 14 continues to rotate, the rotating shaft 14 driving the adjacent pushing column 16 to contact with the lower pressing plate and make the pressing plate maintain the pressure spring at this time, and the bearing block 7 driving the lug 23;

because the length of the left-right direction of the foremost push column 16 is greater than that of the rest push columns 16, along with the movement of the push columns 16, the foremost push column 16 is contacted with the upper side of the upper pressure plate and pushes the upper pressure plate to move downwards, the upper pressure plate drives a piston rod of the injector to move downwards through the sliding block 9 and the upper clamping plate 10, so that medicine is injected, after the upper pressure plate is contacted with the lower pressure plate, the medicine is injected, then the motor is turned off, the device is moved out of a limb of a patient, then the injector is taken out, the pressing block 18 is loosened, the supporting spring drives the pressing block 18 and the moving plate 19 to return to the initial position, the auxiliary gear 33 is separated from the transmission gear 32, at the moment, under the effect of no resistance of the motor, the pressure spring and the reset spring drive the sliding block 9 to move upwards and drive the upper clamping plate 10 to move upwards, the upper clamping plate 10 pushes the foremost push column 16 to rotate, so that the rotating shaft 14 rotates, and when the foremost push column 16 is separated from the lower clamping plate 11, the bearing block 7 moves upwards and returns to the initial position;

if the angle of the injector needs to be adjusted, then the injector is injected, the pressing block 18 is pressed backwards, the pressing block 18 drives the transmission shaft 20 to move backwards through the moving plate 19, the transmission shaft 20 drives the limiting tooth block 31, the main gear 30 and the secondary gear 33 to synchronously move rightwards, so that the main gear 30 is meshed with the ring gear 29, the motor is started, the motor drives the transmission shaft 20 to rotate anticlockwise through the rotary drum 34, the main gear 30 and the ring gear 29 of the transmission shaft 20 drive the rotary plate to rotate clockwise, the rotary plate drives the bearing block 7 to rotate through the connecting block 5 and the inverted U-shaped block 6, the rotating angle of the sliding plate is judged according to the scale at the upper end of the main body 1, when the angle is determined, the pressing block 18 is continuously pressed rightwards, the transmission shaft 20 drives the limiting tooth block 31, the main gear 30 and the secondary gear 33 to synchronously move rightwards, so that the secondary gear 33 is meshed with the transmission gear 32, meanwhile, the limit gear block is inserted into the tooth groove of the ring gear 29, at this time, the rotation of the rotating plate 4 is limited, the motor is started, the motor drives the transmission shaft 20 to rotate anticlockwise through the rotary drum 34, the transmission shaft 20 drives the rotating shaft 14 to rotate clockwise through the pinion 33 and the transmission gear 32, the rotating shaft 14 drives the plurality of pushing posts 16 to rotate clockwise through the rotary rod 15, the pushing post 16 at the forefront side is contacted with the lower pressing plate and pushes the lower pressing plate to move downwards, the lower pressing plate drives the bearing block 7 to move downwards through the screw 26, the bearing block 7 drives the injector to inject the needle to the limb of the patient, after the lower pressing plate is contacted with the stop block 27, the pushing post 16 at the forefront side moves downwards to the limit position, at this time, along with the continuous rotation of the rotating shaft 14, the rotating shaft 14 drives the adjacent pushing posts 16 to be contacted with the lower pressing plate, and enables the lower pressing plate to keep the position, and meanwhile, the bearing block 7 drives the lug 23 to extrude the pressure spring;

and because the length of the left-right direction of the foremost push column 16 is greater than that of the rest push columns 16, along with the movement of the push columns 16, the foremost push column 16 contacts with the upper side of the upper pressure plate and pushes the upper pressure plate to move downwards, the upper pressure plate drives a piston rod of the injector to move downwards through the sliding block 9 and the upper clamping plate 10, so as to inject the medicine, after the upper pressure plate contacts with the lower pressure plate, the medicine is injected, then the motor is turned off, the device is moved out of the limb of the patient, then the injector is taken out, the pressing block 18 is loosened, the supporting spring drives the pressing block 18 and the moving plate 19 to return to the initial position, the pinion 33 is separated from the transmission gear 32, at the moment, under the effect of no resistance of the motor, the pressure spring and the reset spring drive the sliding block 9 to move upwards and drive the upper clamping plate 10 to move upwards, the upper clamping plate 10 pushes the foremost push column 16 to rotate, so as to enable the rotating shaft 14 to rotate, and after the foremost push column 16 is separated from the lower clamping plate 11, the bearing block 7 moves upwards and returns to the initial position, and the arc-shaped plate 3 slides under the effect of the arc-shaped spring to return to the initial position.

The invention has the advantages of ingenious structure and convenient use, the angle of the needle insertion of the injector can be conveniently adjusted by medical personnel according to different injection methods by arranging the rotating plate, the connecting block, the inverted U-shaped block and the bearing plate, the injector is inconvenient to fix the angle position when the injector is inserted, the injector is prevented from sliding in the process of pushing the column liquid medicine, the patient is prevented from being injured, the upper clamping plate, the lower clamping plate and the stop block are arranged at the same time, the depth of the needle insertion can be conveniently adjusted by the medical personnel according to needs, the use of the medical personnel is convenient, the waste of medicine injection caused by nonstandard needle insertion depth is prevented, the rotating shaft, the pushing column, the motor, the main gear, the auxiliary gear, the ring gear and the transmission gear are arranged, the medicine can be pushed to the column at a constant speed, the discomfort of the patient caused by the too fast or too slow pushing column of the medicine is prevented, the operation and the use of the medical personnel are facilitated, the structure is simple, the operation is convenient, the conception is novel, and the practicability is strong.

Claims (9)

1. An injection positioner comprises a triangular main body (1), and is characterized in that a transmission groove (2) is formed in the left side of the main body (1), a abdication groove with an opening facing left and communicated with the transmission groove (2) is formed in the left side of the main body (1), the main body (1) is rotatably connected with a rotating plate (4) in the vertical direction through an arc plate (3), the transmission plate (4) is positioned in the abdication groove, an inverted U-shaped block (6) in the vertical direction is fixed on the left side of the upper end of the rotating plate (4) through a connecting block (5) in the left and right directions, a bearing block (7) in the vertical direction is slidably connected to the inner side of the inverted U-shaped block (6), a rectangular groove (8) which is in the vertical direction and is communicated with the left and right is formed in the upper side of the bearing block (7), a sliding block (9) is slidably connected to the upper end of the rectangular groove (8), two upper clamping plates (10) which are opposite to each other in the vertical direction are arranged at the left end of the sliding block (9), and two lower clamping plates (11) which are opposite to each other and positioned below the rectangular groove (8) are arranged at the left end of the bearing block (7);

bearing block (7) right-hand member be equipped with main clamp plate (12) that correspond with lower plate (11), main clamp plate (12) can reciprocate, slider (9) right-hand member is equipped with vice clamp plate (13), the width of vice clamp plate (13) left and right sides direction is less than the width of main clamp plate (12) left and right sides direction, axial pivot (14) about rotor plate (4) the swivelling joint have, pivot (14) left side is equipped with a plurality of bull sticks (15) of following its circumferencial direction equipartition, one side that pivot (14) axle center was kept away from to bull stick (15) left end is equipped with push post (16), push post (16) can be with vice clamp plate (13) and main clamp plate (12) up end contact, the length of the push post (16) left and right directions of foremost is greater than the length of all the push posts (16) left and right directions, main part (1) lower extreme is equipped with handle (17) of falling L shape, grab handle (17) upside sliding connection has according to piece (18), according to piece (18) upper end be equipped with and insert transmission plate (2) interior movable plate (19), and be equipped with the axial movable plate (20) about rotatable about axial transmission shaft (4) and rotating along with pivot (14) rotation in proper order.

2. The injection positioner according to claim 1, wherein the main body (1) is provided with an arc-shaped groove (21) in the left-right axial direction, the arc-shaped plate (3) is positioned in the arc-shaped groove (21), an arc-shaped spring is arranged at the lower end of the front side of the arc-shaped groove (21), the arc-shaped spring is connected with the front side of the arc-shaped plate (3), the upper end surface of the abdicating groove is an arc-shaped surface, and the upper end surfaces of the rotating plate (4) and the connecting block (5) are arc-shaped surfaces attached to the upper end surface of the abdicating groove.

3. The injection positioner according to claim 1, wherein a rectangular indent (22) is formed in the front side of the inverted U-shaped block (6), a protruding block (23) inserted into the indent (22) is formed in the front end of the bearing block (7), the lower end of the protruding block (23) is connected with the lower end face of the indent (22) through a pressure spring, a groove (24) with the upper end communicated with the rectangular groove (8) is formed in the bearing block (7), a guide column (25) is slidably connected in the groove (24), the upper end of the guide column (25) is connected with the sliding block (9), and the lower end of the guide column (25) is connected with the lower end face of the groove (24) through a return spring.

4. The injection positioner according to claim 1, wherein the upper clamping plate (10) and the lower clamping plate (11) are respectively provided with a through gap, the gap has a left opening, the size of the lower clamping plate (11) is larger than that of the upper clamping plate (10), and elastic pads are arranged on the inner sides of the two upper clamping plates (10) and the two lower clamping plates (11).

5. The injection positioner according to claim 1, wherein the front end face of the lower pressing plate is an inclined plane with a lower front part and a higher rear part, the rear end face of the upper pressing plate is an inclined plane with a higher front part and a lower rear part, a screw rod (26) is in threaded connection with the right end of the bearing block (7), the upper end of the screw rod (26) is rotatably connected with the main pressing plate (12), the main pressing plate (12) is in sliding connection with the bearing block (7), and a stopper (27) which is positioned below the main pressing plate (12) and can be in contact with the lower end face of the main pressing plate (12) is arranged at the right end of the inverted U-shaped block (6).

6. An injection positioner according to claim 1, wherein the main body (1) is provided with a moving groove (28) with an upper end communicated with the transmission groove (2) and a downward opening, the moving plate (19) is positioned in the moving groove (28), the rear end of the rotating plate (4) is fixed with a ring gear (29) coaxial with the arc-shaped groove (21), and the transmission shaft (20) is coaxially provided with a main gear (30) positioned at the left of the moving plate (19) and capable of meshing with the ring gear (29).

7. An injection locator according to claim 1, wherein the lower end of the abdicating groove is slidably connected with a rectangular block, the upper end of the rectangular block is provided with a limit tooth block (31), the limit tooth block (31) is rotatably connected with the transmission shaft (20), and the limit tooth block (31) can be inserted into the tooth groove of the ring gear (29).

8. An injection positioner according to claim 1, wherein the rotating shaft (14) is coaxially provided with a transmission gear (32) positioned at the right of the ring gear (29), the transmission shaft (20) is coaxially fixed with a secondary gear (33) positioned at the right of the moving plate (19), the secondary gear (33) can be meshed with the transmission gear (32), the right side of the main body (1) is provided with a motor, the output end of the motor is provided with a rotating drum (34), and the rotating drum (34) is slidably connected with the transmission shaft (20).

9. The injection positioner according to claim 1, wherein the handle (17) is provided with a slot (35), the pressing block (18) is connected with the right end face of the slot (35) through a supporting spring, the rear end of the handle (17) is provided with a supporting plate (36) in the left-right direction, the lower side of the left end of the supporting plate (36) is provided with an arc-shaped notch, the front end and the rear end of the connecting block (5) are respectively provided with an arc-shaped baffle, and the front end of the inverted U-shaped block (6) and the left side of the upper end of the main body (1) are respectively provided with scales.

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