Syringe convenient to destroy

Abstract

The utility model relates to the field of injectors, in particular to an injector convenient to destroy, which is characterized in that two fixing grooves are symmetrically arranged at the lower end of a pressing plate, clamping grooves are arranged on the inner walls of the fixing grooves, two fixing blocks are symmetrically arranged at the upper end of a needle tube body, the fixing blocks are matched with the fixing grooves, empty grooves are arranged inside the fixing blocks, and the empty grooves are matched with the clamping grooves. After injection of the structure is completed, the pressing plate is located above the fixing block, the fixing block can be inserted into the fixing groove by continuously pressing the pressing plate, at the moment, the spring can provide elastic force for the clamping block, the clamping block and the clamping groove can be matched with each other, and the clamping block can be inserted into the fixing groove. The pressing plate can be fixed to the top end of the needle tube body, the pull rod cannot be pulled at the moment, the push rod does not need to be pulled out manually in the process, labor is saved, and the destroying efficiency is high.

Description

Technical Field

[0001] The utility model relates to the field of syringes, in particular to a syringe which is convenient to destroy. Background Art

[0002] As we all know, syringes are a common medical device. Syringes on the market can be used to extract liquid medicine and then inject it into patients, or extract body fluids from patients, depending on their models. A syringe usually includes a syringe and a piston rod slidably inserted in the syringe. The syringe is provided with a joint for conveying liquid and a scale line for controlling the amount of liquid. The piston rod includes a pressing portion and a rubber plug provided on one side of the joint. When in use, the piston rod is pumped to achieve the purpose of extracting or conveying liquid.

[0003] When using an existing syringe, the push rod needs to be pulled out and then broken off before it can be destroyed. This method not only wastes manpower but also has low destruction efficiency. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies of the prior art, the utility model provides a syringe which is convenient to destroy.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a syringe that is easy to destroy, comprising a needle tube body and a pull rod, the pull rod is located inside the needle tube body, a press plate is fixedly arranged on the top of the pull rod, two fixing grooves are symmetrically arranged at the lower end of the press plate, a clamping groove is arranged on the inner wall of the fixing groove, two fixing blocks are symmetrically arranged on the upper end of the needle tube body, the fixing blocks and the fixing grooves cooperate with each other, an empty groove is arranged inside the fixing block, a spring is arranged inside the empty groove, one end of the spring is fixed inside the empty groove, a clamping block is fixedly arranged on the other end of the spring, the clamping block and the clamping groove cooperate with each other, two positioning blocks are symmetrically arranged on the inner wall of the needle tube body, the positioning block is located at the top of the needle tube body, and two positioning rods that penetrate the positioning blocks are symmetrically arranged on the lower end of the press plate.

[0008] In order to facilitate the assembly of the fixing block, the utility model is improved in that two docking grooves are symmetrically arranged at the upper end of the needle tube body, and a docking block matching with the docking grooves is arranged at the lower end of the fixing block.

[0009] In order to facilitate the installation of the fixing block, the improvement of the utility model is that the docking block is bonded inside the docking groove.

[0010] In order to improve the practicability of the structure, the utility model has the following improvements: a baffle is bonded to the upper end of the fixing block.

[0011] In order to improve the practicability of the pull rod, the improvement of the utility model is that a plurality of cavities are provided on the pull rod.

[0012] (III) Beneficial effects

[0013] Compared with the prior art, the utility model provides a syringe that is easy to destroy and has the following features:

[0014] Beneficial effects:

[0015] The syringe which is convenient for destruction has the following advantages: when the injection is completed, the pressing plate is located above the fixing block, and the fixing block can be inserted into the fixing groove by continuing to press the pressing plate. At this time, the spring will provide an elastic force to the clamping block, so that the clamping block and the clamping groove can cooperate with each other. Since the clamping block is a trapezoidal structure, the pressing plate can be fixed on the top of the needle tube body, and the pull rod will not be pulled again. In this process, there is no need to manually pull out the push rod, which not only saves labor but also has high destruction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2 ;

[0018] Figure 3 This is a schematic diagram of the structure of the utility model Figure 3 ;

[0019] Figure 4 For this utility model Figure 2 A schematic diagram of the local enlarged structure at point A in the middle;

[0020] Figure 5 This is a schematic diagram of the internal structure of the hollow tank of the utility model;

[0021] In the figure: 1. needle tube body; 2. pull rod; 3. press plate; 4. positioning rod; 5. positioning block; 6. cavity; 7. fixing groove; 8. clamping groove; 9. fixing block; 10. baffle; 11. clamping block; 12. empty groove; 13. spring; 14. docking groove; 15. docking block. DETAILED DESCRIPTION

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

[0023] See also Figure 1-5 A syringe that is easy to destroy comprises a needle tube body 1 and a pull rod 2, wherein the pull rod 2 is located inside the needle tube body 1, a pressing plate 3 is fixedly arranged on the top of the pulling rod 2, two fixing grooves 7 are symmetrically arranged at the lower end of the pressing plate 3, a card slot 8 is arranged on the inner wall of the fixing groove 7, two fixing blocks 9 are symmetrically arranged on the upper end of the needle tube body 1, the fixing blocks 9 cooperate with the fixing groove 7, an empty groove 12 is arranged inside the fixing block 9, a spring 13 is arranged inside the empty groove 12, one end of the spring 13 is fixed inside the empty groove 12, a card block 11 is fixedly arranged on the other end of the spring 13, the card block 11 cooperates with the card slot 8, two positioning blocks 5 are symmetrically arranged on the inner wall of the needle tube body 1, the positioning block 5 is located at the top of the needle tube body 1, the pressing plate 3 is symmetrically arranged, the positioning block 5 is located at the top of the needle tube body 1, and the pressing plate 3 is symmetrically arranged. Two positioning rods 4 that penetrate the positioning block 5 are symmetrically arranged at the lower end of the plate 3. The bottom end of the pull rod 2 is equipped with a rubber plug. By pulling the pressing plate 3, the pull rod 2 can pull the rubber plug to rise and fall in the needle tube body 1, so that the needle tube body 1 can be used for extraction or injection. The positioning rods 4 and the positioning block 5 are provided, so that the position of the pressing plate 3 will not rotate. When the injection of this structure is completed, the pressing plate 3 is located above the fixing block 9. Continuing to press the pressing plate 3 can insert the fixing block 9 into the fixing groove 7. At this time, the spring 13 will provide an elastic force to the card block 11, so that the card block 11 and the card groove 8 can cooperate with each other. Since the card block 11 is a trapezoidal structure, the pressing plate 3 can be fixed to the top of the needle tube body 1. At this time, the pull rod 2 will not be pulled again. This process does not require manual pulling of the push rod, which not only saves labor but also has high destruction efficiency.

[0024] The lack of a positioning structure between the fixing block 9 and the needle tube body 1 makes it inconvenient to assemble the fixing block 9 on the needle tube body 1. Two docking grooves 14 are symmetrically arranged at the upper end of the needle tube body 1, and a docking block 15 that cooperates with the docking grooves 14 is provided at the lower end of the fixing block 9, which can provide a positioning structure between the fixing block 9 and the needle tube body 1, making it easy to assemble the fixing block 9 on the needle tube body 1.

[0025] In this structure, the docking block 15 is bonded inside the docking groove 14, and the bonding method has the advantage of convenient assembly and disassembly.

[0026] The fixing block 9 lacks a shielding structure, which makes it easy for the fixing block 9 to be mistakenly inserted into the fixing groove 7. A baffle 10 is bonded to the upper end of the fixing block 9. The baffle 10 can provide a shielding structure for the fixing block 9, which makes it difficult for the fixing block 9 to be mistakenly inserted into the fixing groove 7. When the present structure is in use, the baffle 10 can be torn off the fixing block 9, thereby improving the practicality of the present structure.

[0027] In this structure, a plurality of cavities 6 are provided on the pull rod 2, which can make the pull rod 2 lighter when in use.

[0028] In the description of this article, it should be noted that relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A syringe that is easy to destroy, comprising a needle tube body (1) and a pull rod (2), wherein the pull rod (2) is located inside the needle tube body (1), and a pressing plate (3) is fixedly arranged on the top of the pull rod (2), characterized in that: Two fixing grooves (7) are symmetrically arranged at the lower end of the pressing plate (3), and a clamping groove (8) is arranged on the inner wall of the fixing groove (7). Two fixing blocks (9) are symmetrically arranged at the upper end of the needle tube body (1), and the fixing blocks (9) cooperate with the fixing groove (7). An empty groove (12) is arranged inside the fixing block (9), and a spring (13) is arranged inside the empty groove (12). One end of the spring (13) is fixed inside the empty groove (12), and a clamping block (11) is fixedly arranged on the other end of the spring (13). The clamping block (11) and the clamping groove (8) are connected to each other. ) cooperate with each other, two positioning blocks (5) are symmetrically arranged on the inner wall of the needle tube body (1), the positioning blocks (5) are located at the top of the needle tube body (1), two positioning rods (4) penetrating the positioning blocks (5) are symmetrically arranged at the lower end of the pressing plate (3), two docking grooves (14) are symmetrically arranged at the upper end of the needle tube body (1), the lower end of the fixing block (9) is provided with a docking block (15) cooperating with the docking groove (14), the docking block (15) is bonded to the inside of the docking groove (14), and a baffle (10) is bonded to the upper end of the fixing block (9).

2. A conveniently destroyed syringe according to claim 1, characterized in that: The pull rod (2) is provided with a plurality of cavities (6).

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