Disposable stripping type self-destruction syringe

Abstract

The utility model belongs to the field of syringes, and particularly relates to a disposable stripping type self-destruction syringe which comprises a shell, a supporting seat is connected to the lower portion of the inner wall of the shell in a sliding mode, an auxiliary limiting mechanism is arranged in the shell, a connecting column is fixedly connected to the lower end of the supporting seat, a rubber ring is connected to the outer side of the connecting column in a sleeved mode, and the rubber ring is provided with a sealing ring. The lower end of the connecting column is fixedly connected with four evenly-distributed arc clamping blocks, the lower portion of the inner wall of the shell is fixedly connected with an inclined face sealing ring, the supporting base is slidably connected with a disengaging base, and the upper end of the supporting base is fixedly connected with four evenly-distributed self-destruction frames. The fixing nail, the limiting frame, the spring and other structures are additionally arranged in the shell, after injection of the syringe is completed, the arc clamping block is clamped into the inclined face limiting ring, meanwhile, the limiting frame is clamped to the outer side of the supporting base, and therefore the rubber ring can be locked to the bottom of the shell, and the syringe is prevented from being used again.

Description

Technical Field

[0001] The utility model relates to the technical field of syringes, in particular to a disposable peeling self-destruction syringe. Background Art

[0002] According to the disposable peeling self-destruction syringe proposed in the patent authorization announcement number: CN212679771U, the utility model relates to a disposable peeling self-destruction syringe, including a syringe barrel. A liquid outlet is fixed at the bottom of the syringe barrel. A plunger rod is inserted into the syringe barrel. The plunger rod is connected with a rubber stopper structure. The top end of the plunger rod is detachably connected with the rubber stopper structure. A conical lock is formed circumferentially at the bottom end of the rubber stopper structure, and the number of conical locks ≥ 2; A middle space is formed in the middle of the bottom end of the rubber stopper structure to separate the conical locks; An annular convex is formed in the liquid outlet to cooperate with the conical lock; The sum of the clamping forces between the conical lock and the annular convex > the connection force between the plunger rod and the rubber stopper structure > the frictional force between the rubber stopper structure and the syringe barrel. When the liquid medicine injection of the utility model is completed, the rubber stopper is integrated with the barrel body. When the plunger rod is pulled back, the rubber stopper structure is separated from the plunger rod, making the syringe scrapped and unable to be used again, realizing the self-destruction function.

[0003] However, in the prior art, the self-destruction syringe limits the pull rod structure through a clamping block after use. However, in the elastic deformation clamping method, elastic deformation will still occur when pulling forcefully, resulting in the syringe being able to be used again. Therefore, the prior art needs to be improved. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a disposable peeling self-destruction syringe, which solves the problem that the syringe still has the risk of being used again.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A disposable peeling self-destruction syringe, including a housing. A support seat is slidably connected to the lower part of the inner wall of the housing. An auxiliary limiting mechanism is arranged inside the housing. A connecting column is fixedly connected to the lower end of the support seat. A rubber ring is sleeved outside the connecting column. Four evenly distributed arc-shaped clamping blocks are fixedly connected to the lower end of the connecting column. An inclined surface sealing ring is fixedly connected to the lower part of the inner wall of the housing. A shedding seat is slidably connected to the support seat. Four evenly distributed self-destruction frames are fixedly connected to the upper end of the support seat. A compensation groove is opened at one end of the self-destruction frame far away from the shedding seat.

[0006] Preferably, the inclined surface sealing ring is clamped with the arc-shaped clamping block, and the connecting column is slidably connected with the housing. The inclined surface sealing ring can limit the arc-shaped clamping block.

[0007] Preferably, a pull rod is fixedly connected to the upper end of the shedding seat, and a flat plate is fixedly connected to the upper end of the pull rod. The pull rod can drive the shedding seat to move.

[0008] Preferably, a self-destruct groove is provided on the inner side of the compensation groove, the self-destruct frame is snap-connected with the fall-off seat, the rubber ring is slidably connected with the inner wall of the shell, and the self-destruct frame can be broken along the self-destruct groove.

[0009] Preferably, the auxiliary limiting mechanism includes a fixing pin, two symmetrically distributed fixing pins are fixedly connected to the inside of the shell, the outer side of the fixing pin is slidably connected to a limiting frame, a spring is provided on the outer side of the fixing pin, the fixing pin is slidably connected to the support seat, the limiting frame is clamped with the support seat, and the limiting frame can limit the support seat.

[0010] Preferably, one end of the spring is fixedly connected to the housing, and the other end of the spring is fixedly connected to the limit frame, and the spring can drive the limit frame to automatically reset by springing.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The utility model adds structures such as fixing nails, limiting frames and springs inside the shell. After the injection of the syringe is completed, the arc clamping block is clamped to the inside of the inclined limiting ring, and the limiting frame is clamped to the outside of the support seat, so that the rubber ring can be locked at the bottom of the shell to prevent the syringe from being used again.

[0013] 2. The utility model adds structures such as a self-destruct frame, a fall-off seat and a self-destruct groove on the support seat. After the injection of the syringe is completed, the support seat is locked. When the pull rod is pulled hard, the pull rod will drive the fall-off seat to separate from the support seat and damage the self-destruct frame, resulting in the pull rod being unable to drive the support seat to move. Therefore, the injection after use can be self-destructed, which can effectively avoid reuse. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0015] Figure 2 For the utility model Figure 1 A three-dimensional cross-sectional view of

[0016] Figure 3 For the utility model Figure 2 A three-dimensional diagram of a connecting seat;

[0017] Figure 4 For the utility model Figure 2 A-section structure enlarged view.

[0018] In the figure: 1. Outer shell; 2. Support base; 3. Limit mechanism; 4. Connecting column; 5. Rubber ring; 6. Arc-shaped clamping block; 7. Inclined plane sealing ring; 8. Detachment seat; 9. Pull rod; 10. Flat plate; 11. Self-destruction frame; 12. Compensation groove; 13. Self-destruction groove; 31. Fixing nail; 32. Limit frame; 33. Spring. Specific implementation manner

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , a disposable peelable self-destruction syringe, comprising an outer shell 1, a support base 2 is slidably connected to the lower part of the inner wall of the outer shell 1, an auxiliary limit mechanism 3 is arranged inside the outer shell 1, a connecting column 4 is fixedly connected to the lower end of the support base 2, a rubber ring 5 is sleeved on the outside of the connecting column 4, four evenly distributed arc-shaped clamping blocks 6 are fixedly connected to the lower end of the connecting column 4, an inclined plane sealing ring 7 is fixedly connected to the lower part of the inner wall of the outer shell 1, a detachment seat 8 is slidably connected to the support base 2, four evenly distributed self-destruction frames 11 are fixedly connected to the upper end of the support base 2, and a compensation groove 12 is opened at one end of the self-destruction frame 11 away from the detachment seat 8.

[0021] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , the inclined plane sealing ring 7 is clamped with the arc-shaped clamping block 6, the connecting column 4 is slidably connected to the outer shell 1, the inclined plane sealing ring 7 can limit the arc-shaped clamping block 6, a pull rod 9 is fixedly connected to the upper end of the detachment seat 8, a flat plate 10 is fixedly connected to the upper end of the pull rod 9, the pull rod 9 can drive the detachment seat 8 to move, a self-destruction groove 13 is opened inside the compensation groove 12, the self-destruction frame 11 is clamped with the detachment seat 8, the rubber ring 5 is slidably connected to the inner wall of the outer shell 1, and the self-destruction frame 11 can be broken along the self-destruction groove 13.

[0022] Please refer to Figure 1 , Figure 2 , Figure 4, the auxiliary limiting mechanism 3 includes fixing pins 31. Two symmetrically distributed fixing pins 31 are fixedly connected inside the housing 1. A limiting frame 32 is slidably connected to the outside of the fixing pins 31. A spring 33 is arranged on the outside of the fixing pins 31. The fixing pins 31 are slidably connected to the support base 2. The limiting frame 32 is snap-connected to the support base 2. The limiting frame 32 can limit the support base 2. One end of the spring 33 is fixedly connected to the housing 1, and the other end of the spring 33 is fixedly connected to the limiting frame 32. The spring 33 can drive the limiting frame 32 to automatically reset through its elasticity.

[0023] The specific implementation process of the present utility model is as follows: When in use, push the flat plate 10. The flat plate 10 drives the support base 2 to move into the interior of the housing 1 through the pull rod 9 and the detachment seat 8. During the movement, the liquid can be injected through the rubber ring 5. When the rubber ring 5 contacts the inclined surface sealing ring 7, the injection can be completed. At the same time, the arc-shaped clamping block 6 can be clamped into the interior of the inclined surface sealing ring 7. At the same time, the support base 2 pushes the limiting frame 32 to slide into the interior of the housing 1 and compresses the spring 33. When the rubber ring 5 fits with the inclined surface sealing ring 7, the spring 33 resets. The spring 33 can drive the limiting frame 32 to reset through its elasticity. The limiting frame 32 is snap-connected to the outside of the support base 2, and then the support base 2 can be limited again, so that the support base 2 can be locked in the interior of the housing 1.

[0024] After the support base 2 is locked, when pulling the pull rod 9 again, the acting force of the pull rod 9 acts on the detachment seat 8. The detachment seat 8 transmits the force to the self-destruction frame 11. The self-destruction frame 11 deflects under the force and breaks along the self-destruction groove 13, so that the detachment seat 8 and the support base 2 can be separated, effectively avoiding the reuse of the syringe.

[0025] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A disposable peelable self-destructive syringe, comprising a housing (1), characterized in that: The lower part of the inner wall of the shell (1) is slidably connected to a support seat (2), an auxiliary limiting mechanism (3) is arranged inside the shell (1), the lower end of the support seat (2) is fixedly connected to a connecting column (4), the outer side of the connecting column (4) is sleeved with a rubber ring (5), the lower end of the connecting column (4) is fixedly connected to four evenly distributed arc blocks (6), the lower part of the inner wall of the shell (1) is fixedly connected to a bevel sealing ring (7), the support seat (2) is slidably connected to a fall-off seat (8), the upper end of the support seat (2) is fixedly connected to four evenly distributed self-destruction frames (11), and a compensation groove (12) is provided at one end of the self-destruction frame (11) away from the fall-off seat (8).

2. The disposable peelable self-destructive syringe according to claim 1, characterized in that: The inclined surface sealing ring (7) is clamped with the circular arc clamping block (6), and the connecting column (4) is slidably connected with the housing (1).

3. The disposable peelable self-destructive syringe according to claim 1, characterized in that: The upper end of the falling seat (8) is fixedly connected to a pull rod (9), and the upper end of the pull rod (9) is fixedly connected to a flat plate (10).

4. The disposable peelable self-destructing syringe according to claim 1, characterized in that: A self-destruct groove (13) is provided on the inner side of the compensation groove (12), the self-destruct frame (11) is snap-connected with the drop-off seat (8), and the rubber ring (5) is slidably connected with the inner wall of the outer shell (1).

5. The disposable peelable self-destructive syringe according to claim 1, characterized in that: The auxiliary limiting mechanism (3) comprises a fixing pin (31), two symmetrically distributed fixing pins (31) are fixedly connected to the interior of the housing (1), the outer side of the fixing pin (31) is slidably connected to a limiting frame (32), a spring (33) is arranged on the outer side of the fixing pin (31), the fixing pin (31) is slidably connected to the support seat (2), and the limiting frame (32) is clamped with the support seat (2).

6. The disposable peelable self-destructive syringe according to claim 5, characterized in that: One end of the spring (33) is fixedly connected to the housing (1), and the other end of the spring (33) is fixedly connected to the limiting frame (32).

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