Syringe plug convenient to assemble

Abstract

According to the injector plug convenient to assemble, a bottom groove is formed in a rubber plug body, an empty groove is formed above the bottom groove, a cavity communicated with the bottom groove is formed in the peripheral side of the empty groove, a positioning seat penetrating through the empty groove is arranged at the lower end of a push rod, and a positioning block penetrating through the cavity and entering the bottom groove is arranged on the outer wall of the positioning seat. The rubber plug body is taken, the positioning block is aligned with the cavity, then the positioning seat is inserted into the bottom groove, the positioning block can penetrate through the cavity and enter the bottom groove at the moment, then the rubber plug body is rotated, the positioning block and the cavity are staggered, and the rubber plug body can be conveniently assembled at the bottom of the push rod.

Description

Technical Field

[0001] The utility model relates to the technical field of syringe stoppers, in particular to a syringe stopper convenient for assembly. Background Art

[0002] A syringe is a common medical tool mainly used for injecting liquid medicine or extracting liquid. It mainly includes a needle, a syringe tube, a piston, and a push rod. When in use, the needle is inserted into the liquid medicine, and the push rod is pulled to drive the piston to move so that the liquid medicine enters the syringe tube, and then conventional injection is carried out;

[0003] When assembling the existing rubber stopper, the disc at the bottom end of the syringe push rod needs to be inserted into the inside of the rubber stopper. Since the material of the rubber stopper itself is relatively soft, it will cause the rubber stopper to need to be assembled multiple times to succeed, and the installation efficiency is low. Summary of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the utility model provides a syringe stopper convenient for assembly.

[0006] (2) Technical Solutions

[0007] To achieve the above object, the utility model provides the following technical solution: a syringe stopper convenient for assembly, including a rubber stopper body and a push rod. A bottom groove is arranged inside the rubber stopper body. An empty groove is arranged above the bottom groove. Cavities communicating with the bottom groove are arranged on the periphery of the empty groove. A positioning seat penetrating through the empty groove is arranged at the lower end of the push rod. Positioning blocks penetrating through the cavities and entering the inside of the bottom groove are arranged on the outer wall of the positioning seat.

[0008] Further, the improvement of the utility model is that two cavities are symmetrically arranged on the periphery of the empty groove, and two positioning blocks are symmetrically arranged on the outer wall of the positioning seat.

[0009] Further, the improvement of the utility model is that the cavities and the positioning blocks are both rectangular.

[0010] To make the positioning seat more firmly installed in the bottom groove, the improvement of the utility model is that anti-slip lines contacting the bottom of the bottom groove are arranged at the lower end of the positioning seat.

[0011] Further, the improvement of the utility model is that two damping blocks are symmetrically arranged on the inner wall of the cavity.

[0012] Further, the improvement of the utility model is that the damping block is trapezoidal, and the top of the damping block is an inclined surface, and the bottom of the damping block is a flat surface.

[0013] (3) Beneficial Effects

[0014] Compared with the prior art, the utility model provides a syringe stopper convenient for assembly, which has the following beneficial effects:

[0015] For the syringe stopper convenient for assembly, take the rubber stopper body, align the positioning block with the cavity, and then insert the positioning seat into the bottom groove. At this time, the positioning block will penetrate through the cavity and enter the bottom groove. Then rotate the rubber stopper body to misalign the positioning block with the cavity, which can facilitate the assembly of the rubber stopper body at the bottom of the push rod.

[0016] During the assembly of the positioning block, the positioning block will squeeze the damping block. When the positioning block is inserted into the bottom groove, the damping block will reset. Since the bottom of the damping block is flat, the positioning block will not enter the cavity repeatedly, which can improve the stability of the rubber stopper body after assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a top-down three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 is a semi-sectional view of the rubber stopper body in the utility model;

[0019] Figure 3 is a sectional view of the rubber stopper body in the utility model;

[0020] In the figure: 1, rubber stopper body; 2, empty groove; 3, bottom groove; 4, cavity; 5, damping block; 6, push rod; 7, positioning seat; 8, positioning block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1-3 , a syringe stopper convenient for assembly of the present utility model includes a rubber stopper body 1 and a push rod 6. A bottom groove 3 is provided inside the rubber stopper body 1. An empty groove 2 is provided above the bottom groove 3. A cavity 4 communicating with the bottom groove 3 is provided on the periphery of the empty groove 2. The lower end of the push rod 6 is provided with a positioning seat 7 penetrating through the empty groove 2. A positioning block 8 penetrating through the cavity 4 and entering the inside of the bottom groove 3 is provided on the outer wall of the positioning seat 7.

[0023] In this embodiment, when assembling the rubber stopper body 1, take the rubber stopper body 1, align the positioning block 8 with the cavity 4, and then insert the positioning seat 7 into the bottom groove 3. At this time, the positioning block 8 will penetrate through the cavity 4 and enter the bottom groove 3. Then rotate the rubber stopper body 1 to misalign the positioning block 8 with the cavity 4, which can facilitate the assembly of the rubber stopper body 1 at the bottom of the push rod 6. Since there is a certain frictional force between the positioning seat 7 and the rubber stopper body 1, the positioning seat 7 will not easily rotate in the bottom groove 3. Since the positioning block 8 is misaligned with the cavity 4, when the push rod 6 is pulled and pushed, the rubber stopper body 1 will not be separated from the positioning seat 7.

[0024] In this embodiment, two cavities 4 are symmetrically arranged on the periphery of the empty groove 2, and two positioning blocks 8 are symmetrically arranged on the outer wall of the positioning seat 7.

[0025] In this embodiment, both the cavity 4 and the positioning block 8 are rectangular, and the size of the cavity 4 is slightly larger than that of the positioning block 8, which can facilitate the positioning block 8 to penetrate through the cavity 4.

[0026] Furthermore, the lower end of the positioning seat 7 is provided with anti-slip lines that contact the bottom of the bottom groove 3. By providing the anti-slip lines, the frictional force between the positioning seat 7 and the rubber stopper body 1 can be increased, and the positioning seat 7 can be more firmly installed in the bottom groove 3.

[0027] In this structure, two damping blocks 5 are symmetrically arranged on the inner wall of the cavity 4. The damping blocks 5 are trapezoidal, and the top of the damping blocks 5 is a bevel surface, and the bottom of the damping blocks 5 is a flat surface. As Figure 2 shown, when the positioning block 8 is being assembled, the positioning block 8 will squeeze the damping block 5. When the positioning block 8 is inserted into the bottom groove 3, the damping block 5 will reset. Since the bottom of the damping block 5 is a flat surface, the positioning block 8 will not enter the cavity 4 repeatedly, which can improve the stability of the rubber stopper body 1 after assembly.

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

[0029] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand 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.

Claims

1. A syringe stopper that is convenient for assembly, comprising a rubber stopper body (1) and a push rod (6), characterized in that: The inside of the rubber stopper body (1) is provided with a bottom groove (3), an empty groove (2) is arranged above the bottom groove (3), a cavity (4) communicating with the bottom groove (3) is arranged on the periphery of the empty groove (2), a positioning seat (7) penetrating through the empty groove (2) is arranged at the lower end of the push rod (6), and a positioning block (8) penetrating through the cavity (4) and entering the inside of the bottom groove (3) is arranged on the outer wall of the positioning seat (7).

2. The syringe stopper convenient for assembly according to claim 1, characterized in that: Two cavities (4) are symmetrically arranged on the periphery of the empty groove (2), and two positioning blocks (8) are symmetrically arranged on the outer wall of the positioning seat (7).

3. The syringe stopper for convenient assembly according to claim 2, wherein: Both the cavity (4) and the positioning block (8) are rectangular.

4. The syringe stopper convenient for assembly according to claim 3, wherein: The lower end of the positioning seat (7) is provided with anti-slip lines contacting the bottom of the bottom groove (3).

5. The syringe stopper convenient for assembly according to claim 4, characterized in that: Two damping blocks (5) are symmetrically arranged on the inner wall of the cavity (4).

6. The syringe stopper convenient for assembly according to claim 5, wherein: The damping block (5) is trapezoidal, the top of the damping block (5) is a slope, and the bottom of the damping block (5) is a flat surface.

Images