CN216319289U

CN216319289U - Retractable needle for syringe

Info

Publication number: CN216319289U
Application number: CN202122722544.7U
Authority: CN
Inventors: 赵建平
Original assignee: Shandong Antong Medical Equipment Co ltd
Current assignee: Shandong Antong Medical Equipment Co ltd
Priority date: 2021-11-09
Filing date: 2021-11-09
Publication date: 2022-04-19
Anticipated expiration: 2031-11-09

Abstract

The utility model discloses a retractable needle head for an injector, which relates to the field of retractable needle head injectors and comprises an injection tube, wherein the right side of the inner wall of the injection tube is fixedly connected with a retractable needle head, the right side of the injection tube is provided with a protective shell matched with the retractable needle head, the upper side and the lower side of the right side surface of the injection tube are respectively and fixedly connected with a first clamping block and a second clamping block, the upper side and the lower side of the left side surface of the protective shell are provided with a first clamping groove and a second clamping groove matched with the first clamping block and the second clamping block, the upper surface of the first clamping block is provided with a clamping groove, and the left side of the upper surface of the protective shell is provided with a clamping device. The protective shell of the equipment can not fall off in the transportation and moving processes, the injury of the needle head to medical care personnel is reduced, the protective shell is stably fixed, and the risk that the user is infected and suffers from diseases due to bacteria generated when the needle head is exposed is prevented.

Description

Retractable needle for syringe

Technical Field

The utility model relates to the field of retractable needle syringes, in particular to a retractable needle for a syringe.

Background

The syringe is one of the most conventional instruments in medical instruments, is widely used and is convenient to operate, but most of the needles of the existing syringes are ordinary non-retractable needles, and are assembled by operators during use, so that the use is inconvenient, and the needles of a part of syringes can be retracted, but the needles need to be replaced during liquid medicine extraction, so that the operation is very complicated.

The conventional syringe has a protective casing which is not stable in fixing, so that the protective casing may fall off during transportation and movement, and may cause injury to medical staff when in use, and even the needle may generate bacteria without the protection of the protective casing, and the bacteria may be transmitted to a user through the needle, so that the user may have a sudden disease.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a retractable needle for a syringe, which solves the problems of the conventional syringe protection case proposed in the background art that the protection case is not stable, the protection case may fall off during transportation and movement, the medical staff may be injured during use, and even the needle may generate bacteria without the protection of the protection case, and the bacteria may be transmitted to a user through the needle, causing a sudden disease to the user.

In order to achieve the purpose, the utility model provides the following technical scheme: a retractable needle head for an injector comprises an injection tube, wherein the right side of the inner wall of the injection tube is fixedly connected with a retractable needle head, the right side of the injection tube is provided with a protective shell matched with the retractable needle head, the upper side and the lower side of the right side surface of the injection tube are respectively and fixedly connected with a first clamping block and a second clamping block, the upper side and the lower side of the left side surface of the protective shell are provided with a first clamping groove and a second clamping groove matched with the first clamping block and the second clamping block, the upper surface of the first clamping block is provided with a clamping groove, and the left side of the upper surface of the protective shell is provided with a clamping device;

the chucking ware includes the chucking case, the lower surface of chucking case and the left side fixed connection of protective housing upper surface, the common fixedly connected with slip case in both sides around the chucking incasement wall, the upside fixedly connected with spring of slip incasement wall, the lower extreme fixedly connected with sliding plate of spring, the lower fixed surface of sliding plate is connected with the kelly that matches with the chucking groove, slip incasement wall's right side seted up with kelly assorted slip mouth, the right side of chucking incasement wall seted up with kelly assorted chucking mouth, the front side surface of kelly rotates and is connected with the dwang, the rear side of dwang is located to rotate between slip mouth and the chucking mouth and is connected with vertical dwang.

Preferably, the surfaces of the upper side and the lower side of the second clamping block are fixedly connected with elastic pieces, and the surfaces of the two opposite sides of the elastic pieces are respectively contacted with the upper side and the lower side of the inner wall of the second clamping groove.

Preferably, the left and right sides surface of sliding plate and the left and right sides contact of sliding box inner wall, the lower extreme of kelly runs through the downside of sliding box inner wall and the downside of chucking incasement wall and the upper surface of protective housing to the inner wall of first draw-in groove, both ends are fixed connection with the front and back both sides of chucking incasement wall respectively around vertical dwang, the one end of dwang extends to the outside of chucking case through the inner wall of sliding port and the inner wall of chucking mouth.

Preferably, the right side fixed surface of dwang is connected with according to the piece, the upper surface fixed connection who presses the piece has first anti-skidding cushion.

Preferably, the inner wall of the injection cylinder is slidably connected with a liquid pressing cylinder, the left side surface of the liquid pressing cylinder is fixedly connected with a pressing rod, the right end of the pressing rod is fixedly connected with a pressing plate, the right side surface of the pressing plate is fixedly connected with a second anti-skidding soft cushion, and the upper side and the lower side of the injection cylinder are fixedly connected with arc-shaped pulling plates.

Preferably, the wall of the hydraulic cylinder is fixedly connected with a plurality of soft rings, and the right end of the hydraulic cylinder is fixedly connected with a conical soft head.

The utility model has the technical effects and advantages that:

1. through setting up the injection tube, return the syringe needle, the protective housing, first fixture block, the second fixture block, first draw-in groove, the second draw-in groove, the shell fragment, the chucking groove, the chucking case, the protective housing, the slip case, a spring, the sliding plate, the kelly, the slip mouth, the chucking mouth, vertical dwang, the protective housing that makes equipment can not drop at the in-process of transportation and removal, reduce the injury of syringe needle to medical personnel, the protective housing is fixed stable also prevents because the syringe needle exposes outside production bacterium, and then causes the risk of infecting the production disease to the user.

2. Through setting up the shell fragment, make the protective housing more stable fix, also conveniently use and fix, through setting up second draw-in groove, sliding plate, kelly, chucking case, first draw-in groove, vertical dwang, dwang slip mouth, chucking mouth, make the device more stable when carrying out the during operation.

3. According to piece, first anti-skidding cushion through the setting, make equipment carrying out the better result of use that reaches of during operation, better opening and fixing, through setting up a pressure liquid section of thick bamboo, depression bar, clamp plate, second anti-skidding cushion, arc arm-tie, equipment provides comfortable operation process for the operator when using, through setting up soft ring, the soft head of toper, equipment can be to the better injection that carries on of the liquid medicine in the injection tube when using.

Drawings

Fig. 1 is an overall sectional structure diagram of the present invention.

FIG. 2 is an enlarged view of part A of the present invention.

FIG. 3 is an enlarged view of the part B of the present invention.

Fig. 4 is a schematic overall perspective structure of the present invention.

FIG. 5 is an enlarged view of the part C according to the present invention.

In the figure: 1. an arc-shaped pulling plate; 2. pressing a plate; 3. a second anti-slip cushion; 4. a pressure lever; 5. a soft ring; 6. an injection tube; 7. retracting the needle head; 8. a conical soft head; 9. a fluid pressing cylinder; 10. a protective shell; 11. clamping the box; 12. a slide box; 13. a sliding plate; 14. a clamping rod; 15. rotating the rod; 16. a first clamping block; 17. a clamping groove; 18. a first card slot; 19. longitudinally rotating the rod; 20. a clamping opening; 21. a first anti-slip cushion; 22. a sliding port; 23. a spring; 24. a spring plate; 25. a second fixture block; 26. a second card slot; 27. by block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model provides a retractable needle for an injector as shown in figures 1-5, which comprises an injection tube 6, a retractable needle 7 is fixedly connected to the right side of the inner wall of the injection tube 6, a protective casing 10 matched with the retractable needle 7 is arranged on the right side of the injection tube 6, a first clamping block 16 and a second clamping block 25 are respectively and fixedly connected to the upper side and the lower side of the right side surface of the injection tube 6, a first clamping groove 18 and a second clamping groove 26 matched with the first clamping block 16 and the second clamping block 25 are respectively arranged on the upper side and the lower side of the left side surface of the protective casing 10, a clamping groove 17 is arranged on the upper surface of the first clamping block 16, a clamping device is arranged on the left side of the upper surface of the protective casing 10, the clamping device comprises a clamping box 11, the lower surface of the clamping box 11 is fixedly connected to the left side of the upper surface of the protective casing 10, a sliding box 12 is fixedly connected to the front side and the rear side of the inner wall of the clamping box 11, a spring 23 is fixedly connected to the upper side of the inner wall of the sliding box 12, lower extreme fixedly connected with sliding plate 13 of spring 23, sliding plate 13's lower fixed surface is connected with and chucking groove 17 assorted kelly 14, slide box 12 inner wall's right side has been seted up with kelly 14 assorted slip mouth 22, chucking box 11 inner wall's right side has been seted up with kelly 14 assorted chucking mouth 20, kelly 14's front side surface rotates and is connected with dwang 15, the rear side of dwang 15 is located and rotates between slip mouth 22 and chucking mouth 20 and is connected with vertical dwang 19, the protective housing 10 that makes equipment can not drop at the in-process of transportation and removal, reduce the injury of syringe needle to medical personnel, protective housing 10 is fixed stable also prevents because the syringe needle exposes outside production bacterium, and then cause the risk of infecting the production disease to the user.

As shown in fig. 1, the upper and lower surfaces of the second clamping block 25 are fixedly connected with the elastic pieces 24, opposite side surfaces of the two elastic pieces 24 are respectively contacted with the upper and lower sides of the inner wall of the second clamping groove 26, so that the protective shell 10 is more stably fixed, and the use and the fixation are also convenient, the left and right side surfaces of the sliding plate 13 are contacted with the left and right sides of the inner wall of the sliding box 12, the lower end of the clamping rod 14 penetrates through the lower side of the inner wall of the sliding box 12, the lower side of the inner wall of the clamping box 11 and the upper surface of the protective shell 10 to the inner wall of the first clamping groove 18, the front and rear ends of the longitudinal rotating rod 19 are respectively fixedly connected with the front and rear sides of the inner wall of the clamping box 11, one end of the rotating rod 15 extends to the outer side of the clamping box 11 through the inner wall of the sliding port 22 and the inner wall of the clamping port 20, so that the device is more stable during operation.

As shown in fig. 1 and fig. 2, the right side fixed surface of dwang 15 is connected with according to piece 27, the first non-slip cushion 21 of last fixed surface who presses piece 27, make the equipment better reach the result of use when carrying out the during operation, better opening and fixing, the inner wall sliding connection of injection tube 6 presses a liquid section of thick bamboo 9, the left side fixed surface of a liquid section of thick bamboo 9 is connected with depression bar 4, the right-hand member fixedly connected with clamp plate 2 of depression bar 4, the right side fixed surface of clamp plate 2 is connected with second non-slip cushion 3, the upper and lower both sides fixedly connected with arc arm-tie 1 of injection tube 6, the equipment provides comfortable operation process for the operator when using, a plurality of soft rings 5 of section of thick bamboo wall fixedly connected with of a liquid section of thick bamboo 9, the right-hand member fixedly connected with toper soft head 8 of a liquid section of thick bamboo 9, the equipment can be better injecting to the liquid medicine in injection tube 6 when using.

The working principle of the utility model is as follows: when the device is used, the pressing block 27 is pressed, the pressing block 27 drives the rotating rod 15 to rotate around the longitudinal rotating rod 19, the rotating rod 15 drives the clamping rod 14 to move upwards, the clamping rod 14 is far away from the clamping groove 17 when the clamping rod 14 moves upwards, the protective shell 10 is unlocked, the protective shell 10 is pulled to move, the elastic sheet 24 in the second clamping groove 26 below the protective shell 10 is slowly changed from a tightening state to a loosening state, the protective shell 10 can be used after being opened, the pressing block 27 is pulled after the protective shell is used, the pressing block 27 drives the structure to move in the opposite direction, the clamping rod 14 is lifted upwards, and when the retraction needle 7 is covered, the clamping rod 14 is driven by the spring 23 to fix the protective shell 10;

drive depression bar 4 through clamp plate 2 and remove, depression bar 4 drives a pressure liquid section of thick bamboo 9 and removes in injection tube 6, retraction syringe needle 7 is inhaled injection tube 6 with the liquid medicine in the cooperation, drive depression bar 4 through clamp plate 2 again and remove, depression bar 4 drives a pressure liquid section of thick bamboo 9 and removes, pressure liquid section of thick bamboo 9 drives soft ring 5 and carries the liquid medicine in injection tube 6, when the injection finishes, retract under the effect of retracting syringe needle 7, thereby end the injection overall process.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. A retractable needle for a syringe comprising a barrel (6), characterized in that: the right side of the inner wall of the injection tube (6) is fixedly connected with a retraction needle head (7), the right side of the injection tube (6) is provided with a protective shell (10) matched with the retraction needle head (7), the upper side and the lower side of the right side surface of the injection tube (6) are respectively and fixedly connected with a first clamping block (16) and a second clamping block (25), the upper side and the lower side of the left side surface of the protective shell (10) are provided with a first clamping groove (18) and a second clamping groove (26) matched with the first clamping block (16) and the second clamping block (25), the upper surface of the first clamping block (16) is provided with a clamping groove (17), and the left side of the upper surface of the protective shell (10) is provided with a clamping device;

the clamping device comprises a clamping box (11), the lower surface of the clamping box (11) is fixedly connected with the left side of the upper surface of the protective shell (10), the front side and the rear side of the inner wall of the clamping box (11) are fixedly connected with a sliding box (12) together, a spring (23) is fixedly connected with the upper side of the inner wall of the sliding box (12), the lower end of the spring (23) is fixedly connected with a sliding plate (13), the lower surface of the sliding plate (13) is fixedly connected with a clamping rod (14) matched with the clamping groove (17), the right side of the inner wall of the sliding box (12) is provided with a sliding opening (22) matched with the clamping rod (14), the right side of the inner wall of the clamping box (11) is provided with a clamping opening (20) matched with the clamping rod (14), the front side surface of kelly (14) rotates and is connected with dwang (15), the rear side position of dwang (15) rotates between slip mouth (22) and chucking mouth (20) and is connected with vertical dwang (19).

2. A retractable needle for a syringe as claimed in claim 1, wherein: the surfaces of the upper side and the lower side of the second clamping block (25) are fixedly connected with elastic pieces (24), and the surfaces of the two opposite sides of the elastic pieces (24) are respectively contacted with the upper side and the lower side of the inner wall of the second clamping groove (26).

3. A retractable needle for a syringe as claimed in claim 1, wherein: the left and right sides surface of sliding plate (13) and the left and right sides contact of sliding box (12) inner wall, the lower extreme of kelly (14) runs through the downside of sliding box (12) inner wall and the downside of chucking case (11) inner wall and the upper surface of protective housing (10) to the inner wall of first draw-in groove (18), both ends are fixed connection around longitudinal rotating rod (19) respectively with the front and back both sides of chucking case (11) inner wall, the inner wall of the one end of dwang (15) through slip mouth (22) and the inner wall of chucking mouth (20) extend to the outside of chucking case (11).

4. A retractable needle for a syringe as claimed in claim 1, wherein: the right side fixed surface of dwang (15) is connected with according to piece (27), the last fixed surface who presses piece (27) is connected with first anti-skidding cushion (21).

5. A retractable needle for a syringe as claimed in claim 1, wherein: the inner wall sliding connection of injection tube (6) presses liquid section of thick bamboo (9), the left side fixed surface of pressing liquid section of thick bamboo (9) is connected with depression bar (4), the right-hand member fixedly connected with clamp plate (2) of depression bar (4), the right side fixed surface of clamp plate (2) is connected with second anti-skidding cushion (3), the upper and lower both sides fixedly connected with arc arm-tie (1) of injection tube (6).

6. A retractable needle for a syringe as claimed in claim 5, wherein: the wall of the pressure liquid cylinder (9) is fixedly connected with a plurality of soft rings (5), and the right end of the pressure liquid cylinder (9) is fixedly connected with a conical soft head (8).