Safe self-destruction syringe convenient to recycle

Abstract

The utility model discloses a safe self-destruction syringe convenient to recycle, and relates to the technical field of syringes. The syringe comprises a needle cylinder, a push rod is arranged in the needle cylinder, a limiting ring is arranged in the needle cylinder, two sets of sealing grooves are formed in the needle cylinder, sealing rings are arranged in the two sets of sealing grooves, a clamping groove is formed in the needle cylinder, an infusion mechanism is arranged in the needle cylinder, and the infusion mechanism comprises a needle head. A connecting rod is arranged on one end face of the push rod, and a push plate is arranged on one side face of the connecting rod. The liquid suction and injection processes of the syringe are the same as those of a common syringe, after injection is completed, the push rod pushes the elastic buckle, the elastic buckle contracts when the push rod makes contact with the infusion mechanism, the elastic buckle rebounds to be clamped with the notch when the position of the elastic buckle is consistent with the position of the notch, at the moment, the push rod is pulled to pull the infusion mechanism into the needle cylinder, and then the infusion mechanism is closed. The limiting ring can limit the push plate so that the push plate cannot be completely pulled out.

Description

Technical Field

[0001] The utility model belongs to the technical field of syringes, and particularly relates to a safe self-destructing syringe which is convenient for recycling. Background Art

[0002] At present, disposable syringes are widely used in medicine. However, they cannot achieve the purpose of forced single-use injection, resulting in the problem of repeated use. Secondly, they also pose a safety hazard to patients. The existing disposable syringes are of good quality. After use, the structure of the disposable syringe is intact. There are some people who seek personal gain to recycle the disposable syringes and repackage them for secondary use, leading to cross-infection among users.

[0003] At the same time, after the existing disposable safe self-destructing syringe is used, when it is destroyed, because its needle is exposed outside, there is a possibility of scratching the staff. Therefore, a safe self-destructing syringe which is convenient for recycling is proposed. Summary of the Invention

[0004] The purpose of the utility model is to provide a safe self-destructing syringe which is convenient for recycling to solve the existing problems.

[0005] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0006] The utility model is a safe self-destructing syringe which is convenient for recycling, including a syringe barrel. A push rod is arranged in the syringe barrel. A limiting ring is arranged in the syringe barrel. Two groups of sealing grooves are formed in the syringe barrel. Sealing rings are arranged in the two groups of sealing grooves. A clamping groove is formed in the syringe barrel. An infusion mechanism is arranged in the syringe barrel. The infusion mechanism includes a needle. One end face of the push rod is provided with a connecting rod. One side face of the connecting rod is provided with a push plate. Elastic buckles are symmetrically arranged on one side face of the push plate. A piston is arranged on one side face of the push plate. Notches are symmetrically formed on the circumferential side face of the infusion mechanism. A flow cavity is formed in the infusion mechanism. A limiting mechanism is arranged on the upper surface of the syringe barrel. The limiting mechanism includes a limiting block. A limiting rod is inserted into the limiting block. A pulling plate is arranged on one side face of the limiting rod. A limiting groove is formed on the circumferential side face of the push rod. The other end of the limiting rod extends into the limiting groove.

[0007] The shape and size of the limiting rod are adapted to those of the limiting groove. The limiting rod is clamped and matched with the limiting groove. The shape and size of the limiting ring are adapted to those of the push rod. The shape and size of the infusion mechanism are adapted to those of the clamping groove. The infusion mechanism is clamped and matched with the clamping groove.

[0008] The shape and size of the elastic buckle are adapted to the notch. The elastic buckle is clamped and fitted with the notch. The sealing ring is closely attached to the peripheral side surface of the infusion mechanism. The sealing ring can prevent the medicine from flowing out. The sealing ring is arranged between the syringe barrel and the infusion mechanism to increase the frictional force of the contact surface. The limiting ring limits the push plate. For a safety self-destructive syringe that is convenient for recycling, a scale bar is arranged on the peripheral side surface of the syringe barrel.

[0009] The push rod pushes the elastic buckle. When contacting the infusion mechanism, the elastic buckles will contract with each other. When the position of the elastic buckle is consistent with the position of the notch, the elastic buckle rebounds and engages with the notch. At this time, pulling the push rod pulls the infusion mechanism into the syringe barrel. The limiting ring can limit the push plate so that it cannot be completely withdrawn.

[0010] The utility model has the following beneficial effects:

[0011] For the syringe of the utility model, the liquid suction and injection processes are the same as those of a common syringe. After the injection is completed, the push rod pushes the elastic buckle. When contacting the infusion mechanism, the elastic buckles will contract with each other. When the position of the elastic buckle is consistent with the position of the notch, the elastic buckle rebounds and engages with the notch. At this time, pulling the push rod pulls the infusion mechanism into the syringe barrel. The limiting ring can limit the push plate so that it cannot be completely withdrawn. At this time, the push rod can be broken, so that the infusion mechanism remains in the syringe barrel. At the same time, the broken push rod can enter from the other end of the syringe barrel to block it to prevent the needle from leaking and causing injury to the staff; this structure can prevent repeated use, thereby realizing the destruction of this structure, achieving the purpose of destruction, with simple operation, saving labor, and high practicability.

[0012] Of course, it is not necessary for any product implementing the utility model to achieve all the above advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0014] Figure 1 It is a schematic diagram of the overall structure of a safety self-destructive syringe that is convenient for recycling;

[0015] Figure 2 It is a left view of a safety self-destructive syringe that is convenient for recycling;

[0016] Figure 3 For Figure 2 The sectional view of A-A;

[0017] Figure 4 For Figure 3 An enlarged view of part B.

[0018] In the attached drawings, the list of components represented by each reference numeral is as follows: 1. Syringe barrel; 2. Pusher rod; 3. Infusion mechanism; 4. Limiting mechanism; 11. Limiting ring; 12. Sealing ring; 13. Card slot; 21. Connecting rod; 22. Pushing plate; 23. Piston; 24. Elastic buckle; 25. Limiting groove; 31. Notch; 32. Flow chamber; 33. Needle; 41. Limiting block; 42. Limiting rod; 43. Pulling plate. Specific embodiments

[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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] In the description of the present invention, it should be understood that the terms "upper", "middle", "outer", "inner", etc. indicating orientation or positional relationships are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0021] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "provided with", "connected", etc. shall be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] Please refer to Figures 1 - 4As shown in the figure, the utility model relates to a safe self-destructing syringe which is convenient for recycling, including a syringe barrel 1. A push rod 2 is arranged in the syringe barrel 1. A limiting ring 11 is arranged in the syringe barrel 1. Two groups of sealing grooves are formed in the syringe barrel 1. Sealing rings 12 are arranged in the two groups of sealing grooves. A clamping groove 13 is formed in the syringe barrel 1. An infusion mechanism 3 is arranged in the syringe barrel 1. The infusion mechanism 3 includes a needle head 33. One end face of the push rod 2 is provided with a connecting rod 21. One side face of the connecting rod 21 is provided with a push plate 22. Elastic buckles 24 are symmetrically arranged on one side face of the push plate 22. A piston 23 is arranged on one side face of the push plate 22. Grooves 31 are symmetrically formed on the peripheral side face of the infusion mechanism 3. A flow cavity 32 is formed in the infusion mechanism 3. A limiting mechanism 4 is arranged on the upper surface of the syringe barrel 1. The limiting mechanism 4 includes a limiting block 41. A limiting rod 42 is inserted into the limiting block 41. A pull plate 43 is arranged on one side face of the limiting rod 42. A limiting groove 25 is formed on the peripheral side face of the push rod 2. The other end of the limiting rod 42 extends into the limiting groove 25.

[0023] Further, the shape and size of the limiting rod 42 are adapted to those of the limiting groove 25, and the limiting rod 42 is clamped and matched with the limiting groove 25. The shape and size of the limiting ring 11 are adapted to those of the push rod 2. The shape and size of the infusion mechanism 3 are adapted to those of the clamping groove 13, and the infusion mechanism 3 is clamped and matched with the clamping groove 13.

[0024] Furthermore, the shape and size of the elastic buckle 24 are adapted to those of the groove 31, and the elastic buckle 24 is clamped and matched with the groove 31. The sealing ring 12 is in close contact with the peripheral side face of the infusion mechanism 3. The sealing ring 12 can prevent the medicine from flowing out. The sealing ring 12 is arranged between the syringe barrel 1 and the infusion mechanism 3 to increase the frictional force of the contact surface therebetween. The limiting ring 11 limits the push plate 22. A scale bar is arranged on the peripheral side face of the syringe barrel 1.

[0025] Further, when the push rod 2 pushes the elastic buckle 24, the elastic buckles 24 will contract with each other when contacting the infusion mechanism 3. When the position of the elastic buckle 24 is consistent with that of the groove 31, the elastic buckle 24 rebounds and engages with the groove 31. At this time, pulling the push rod 2 pulls the infusion mechanism 3 into the syringe barrel 1. The limiting ring 11 can limit the push plate 22 so that it cannot be completely withdrawn.

[0026] It should be noted that the liquid suction and injection processes of the syringe of the present utility model are the same as those of a common syringe. After injection is completed, the push rod 2 pushes the elastic buckle 24. When contacting the infusion mechanism 3, the elastic buckles 24 will contract with each other. When the position of the elastic buckle 24 is aligned with the position of the notch 31, the elastic buckle 24 rebounds and engages with the notch 31. At this time, pulling the push rod 2 pulls the infusion mechanism 3 into the syringe barrel 1. The limit ring 11 can limit the push plate 22 so that it cannot be completely withdrawn. At this time, the push rod 2 can be broken, so that the infusion mechanism 3 remains in the syringe barrel 1. At the same time, the broken push rod 2 enters from the other end of the syringe barrel 1 to block it to prevent the needle head 33 from leaking out and causing injury to the staff. This structure can prevent repeated use, thereby realizing the destruction of this structure, achieving the purpose of destruction, with simple operation, saving labor, and high practicability.

[0027] To prevent the push rod 2 from being accidentally engaged with the infusion mechanism 3, the limit rod 42 provided on the upper surface of the syringe barrel 1 is inserted into the limit groove 25 to limit it. When in use, the limit rod 42 is pulled out for use through the pull plate 43; a sealing groove is provided in the syringe barrel 1, and the sealing ring 12 in the sealing groove is in close fit with the peripheral side surface of the infusion mechanism 3, increasing the friction between the infusion mechanism 3 and the syringe barrel 1 to prevent the needle head 33 from retracting due to resistance when piercing the skin.

[0028] In the description of this specification, the description with reference to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0029] The preferred embodiments of the present utility model disclosed above are only used to help explain the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present utility model, so that those skilled in the relevant technical field can understand and utilize the present utility model well. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A safe self-destructive syringe that is easy to recycle, comprising a syringe (1), characterized in that: The syringe (1) is provided with a push rod (2), a limit ring (11) is provided in the syringe (1), two groups of sealing grooves are provided in the syringe (1), sealing rings (12) are provided in the two groups of sealing grooves, a clamping groove (13) is provided in the syringe (1), an infusion mechanism (3) is provided in the syringe (1), the infusion mechanism (3) includes a needle (33), a connecting rod (21) is provided on one end face of the push rod (2), a push plate (22) is provided on one side face of the connecting rod (21), and an elastic buckle (24) is symmetrically provided on one side face of the push plate (22). A piston (23) is arranged on one side of the push plate (22), notches (31) are symmetrically provided on the peripheral side of the infusion mechanism (3), a flow cavity (32) is provided in the infusion mechanism (3), a limiting mechanism (4) is arranged on the upper surface of the syringe (1), the limiting mechanism (4) comprises a limiting block (41), a limiting rod (42) is inserted in the limiting block (41), a pull plate (43) is arranged on one side of the limiting rod (42), a limiting groove (25) is provided on the peripheral side of the push rod (2), and the other end of the limiting rod (42) extends into the limiting groove (25).

2. A safe self-destructive syringe that is easy to recycle according to claim 1, characterized in that: The shape and size of the limiting rod (42) are compatible with the limiting groove (25), and the limiting rod (42) and the limiting groove (25) are snap-fitted together. The shape and size of the limiting ring (11) are compatible with the push rod (2), and the shape and size of the infusion mechanism (3) are compatible with the slot (13), and the infusion mechanism (3) and the slot (13) are snap-fitted together.

3. The easy-to-recycle safety self-destructive syringe according to claim 1, characterized in that: The shape and size of the elastic buckle (24) are adapted to the notch (31); the elastic buckle (24) and the notch (31) are snap-fitted together; the sealing ring (12) is tightly fitted to the peripheral side surface of the infusion mechanism (3); the sealing ring (12) can prevent the medicine from flowing out; the sealing ring (12) is arranged between the syringe (1) and the infusion mechanism (3) to increase the friction force of the contact surface; and the limiting ring (11) limits the push plate (22).

4. The easy-to-recycle safety self-destructive syringe according to claim 1, characterized in that: The side surface of the syringe (1) is provided with a scale bar.

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