Safety injector

Abstract

The utility model discloses a safety type syringe which comprises a syringe body, the top of the syringe body is movably connected with a needle head, the surface of the needle head is sleeved with a protective sleeve, the bottom of the surface of the protective sleeve is fixedly connected with a limiting ring, the top of the syringe body is connected with a fixing plate in a sliding mode, and the fixing plate is used in cooperation with the protective sleeve. A limiting groove used in cooperation with the limiting ring is formed in the right side of the fixing plate. The fixing plate moves towards the left side, so that the spring is extruded to deform, the fixing plate moves towards the left side, the limiting of the limiting ring by the limiting groove is canceled, then a user pulls the protective sleeve upwards, the needle head can be used, and sliding of the fixing plate is limited through the supporting rod; the fixing plate can slide stably, the safety protection effect of the injector is achieved, the existing mode that a plastic sleeve is used for protection is replaced, and therefore the effect of facilitating safety protection is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of syringes, in particular to a safety syringe. Background Art

[0002] A syringe is a common medical device that uses a needle to extract or inject gas or liquid. A syringe consists of a syringe with a small hole at the front end and a matching piston core rod, which is used to inject a small amount of liquid or gas into or extract it from areas that are inaccessible by other methods. When the core rod is pulled out, the liquid or gas is sucked in from the small hole at the front end of the syringe, and when the core rod is pushed in, the liquid or gas is squeezed out. In addition, syringes can also be used in medical equipment and containers, such as some scientific instruments in chromatography, to inject through a rubber diaphragm.

[0003] Syringes are used for therapeutic injections. However, during the current use of syringes, the needle is only protected by a plastic sleeve. The plastic sleeve is only put on the needle by friction, and has poor stability. It is easy to fall off. The needle is exposed, which is dangerous and inconvenient for users to use.

[0004] Therefore, the syringe needs to be redesigned to effectively prevent the current syringe from being used, where the needle is only protected by a plastic sleeve, and the plastic sleeve is only put on the needle by friction, which has poor stability and is prone to falling, exposing the needle and posing a certain danger. Utility Model Content

[0005] In order to solve the problems raised in the above-mentioned background technology, the purpose of the utility model is to provide a safety syringe, which has the advantage of safety protection and solves the problem that in the current use of syringes, the needle is only protected by a plastic sleeve, and the plastic sleeve is only sleeved on the needle by friction, which has poor stability and is prone to falling off, and the needle is exposed, which poses a certain risk.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a safety syringe, comprising a syringe, a needle is movably connected to the top of the syringe, a protective sleeve is provided on the surface of the needle, a limiting ring is fixedly connected to the bottom of the surface of the protective sleeve, a fixing plate is slidably connected to the top of the syringe, the fixing plate is used in conjunction with the protective sleeve, a limiting groove used in conjunction with the limiting ring is provided on the right side of the fixing plate, a tightening component is provided inside the fixing plate, and a protective component is provided on the outside of the fixing plate.

[0007] As a preferred embodiment of the utility model, the clamping assembly includes a fixing groove, which is opened on the top of the fixing plate, the interior of the fixing groove is slidably connected to a limiting plate, the bottom of the limiting plate is fixedly connected to the top of the syringe, the right side of the limiting plate is fixedly connected to a spring, and the right side of the spring is fixedly connected to the interior of the fixing groove.

[0008] As a preferred embodiment of the utility model, the protective assembly includes a protective plate, which is fixedly connected to the top of the syringe, and the number of the protective plates is two. The protective plates are located on the outside of the fixed plate, and the bottom of the fixed plate is fixedly connected to a wheel frame, and the inside of the wheel frame is movably connected to a rubber wheel.

[0009] As a preferred embodiment of the present invention, there are several wheel racks, and the wheel racks are distributed in a rectangular shape.

[0010] As a preferred embodiment of the utility model, a support rod is transversely fixedly connected to the interior of the fixing groove, the support rod is slidably connected to the limiting plate, and the number of the support rods is two.

[0011] As a preferred embodiment of the utility model, a round rod is transversely fixedly connected to the interior of the fixing groove, and the round rod is slidably connected to the limiting plate.

[0012] As a preferred embodiment of the present invention, there are several rubber wheels, the rubber wheels are distributed in a rectangular shape, and a dustproof plate is fixedly connected to the top of the fixing plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model moves the fixing plate to the left, and the fixing plate moves to the left, so that the spring is squeezed and deformed, and the fixing plate moves to the left, so that the limiting groove cancels the limiting of the limiting ring. Then the user pushes the protective cover upward, and the needle can be used to slide the limiting fixing plate through the support rod, so that the fixing plate can slide stably, so that the syringe can achieve the effect of safety protection, replacing the existing protection method of using a plastic sleeve, thereby achieving the effect of convenient safety protection.

[0015] 2. The utility model can tighten the fixing plate by setting the tightening component, which effectively improves the stability of the fixing plate, effectively avoids the shaking of the fixing plate, and is convenient for users to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0017] Figure 2 It is a three-dimensional explosion schematic diagram of the utility model;

[0018] Figure 3 It is an exploded schematic diagram of the fixing plate of the utility model;

[0019] Figure 4 For this utility model Figure 3 Enlarged schematic diagram at point A in the middle.

[0020] In the figure: 1. syringe; 2. needle; 3. protective cover; 4. limiting ring; 5. fixing plate; 6. limiting groove; 7. tightening assembly; 71. fixing groove; 72. limiting plate; 73. spring; 8. protective assembly; 81. protective plate; 82. wheel frame; 83. rubber wheel; 9. support rod; 10. round rod; 11. dustproof plate. DETAILED DESCRIPTION

[0021] 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.

[0022] like Figures 1 to 4 As shown, the utility model provides a safety syringe, comprising a syringe 1, a needle 2 is movably connected to the top of the syringe 1, a protective sleeve 3 is provided on the surface of the needle 2, a limiting ring 4 is fixedly connected to the bottom of the surface of the protective sleeve 3, a fixing plate 5 is slidably connected to the top of the syringe 1, the fixing plate 5 is used in conjunction with the protective sleeve 3, a limiting groove 6 used in conjunction with the limiting ring 4 is provided on the right side of the fixing plate 5, a tightening component 7 is provided inside the fixing plate 5, and a protective component 8 is provided on the outside of the fixing plate 5.

[0023] refer to Figure 3 The tightening component 7 includes a fixing groove 71, which is opened at the top of the fixing plate 5. The fixing groove 71 is internally slidably connected to a limiting plate 72. The bottom of the limiting plate 72 is fixedly connected to the top of the syringe 1. The right side of the limiting plate 72 is fixedly connected to a spring 73, and the right side of the spring 73 is fixedly connected to the inside of the fixing groove 71.

[0024] As a technical optimization solution of the present invention, the fixing plate 5 can be tightened by setting the tightening component 7, which effectively improves the stability of the fixing plate 5 and effectively avoids the shaking of the fixing plate 5, making it easier for users to use.

[0025] refer to Figure 4The protection assembly 8 includes a protection plate 81, which is fixedly connected to the top of the syringe 1. There are two protection plates 81, which are located on the outside of the fixed plate 5. The bottom of the fixed plate 5 is fixedly connected to a wheel frame 82, and the inside of the wheel frame 82 is movably connected to a rubber wheel 83.

[0026] As a technical optimization solution of the present invention, the outer side of the fixed plate 5 can be protected by setting the protective plate 81, which effectively improves the stability of the front and rear sides of the fixed plate 5 and prevents the fixed plate 5 from shaking back and forth.

[0027] refer to Figure 4 The number of wheel racks 82 is several, and the wheel racks 82 are distributed in a rectangular shape.

[0028] As a technical optimization solution of the utility model, by setting the number of wheel frames 82 to be several, multiple rubber wheels 83 can be installed, which can reduce the friction between the fixing plate 5 and the syringe 1, increase the service life of the fixing plate 5, and facilitate user use.

[0029] refer to Figure 4 A support rod 9 is transversely fixedly connected inside the fixing groove 71, and the support rod 9 is slidably connected to the limiting plate 72. The number of the support rods 9 is two.

[0030] As a technical optimization solution of the present invention, the support rod 9 is provided to improve the stability of the fixing plate 5 , so that the fixing plate 5 can be more stably clamped on the limiting ring 4 , thereby improving the safety of the fixing plate 5 .

[0031] refer to Figure 4 A round rod 10 is transversely fixedly connected inside the fixing groove 71 , and the round rod 10 is slidably connected to the limiting plate 72 .

[0032] As a technical optimization solution of the utility model, by setting the round rod 10, the limiting rod can be slid, the spring 73 can be limited, and the spring 73 can be effectively prevented from tilting, and the stability is relatively strong.

[0033] refer to Figure 4 There are several rubber wheels 83 , which are distributed in a rectangular shape. A dustproof plate 11 is fixedly connected to the top of the fixing plate 5 .

[0034] As a technical optimization solution of the utility model, by setting the number of rubber wheels 83 to be several, the bottom of the fixed plate 5 can be supported and slid at multiple angles, which effectively increases the service life of the fixed plate 5 and is convenient for users to use.

[0035] The working principle and use process of the utility model are as follows: during use, when the user needs to use the syringe 1, the user moves the fixing plate 5 to the left, and the fixing plate 5 moves to the left, so that the spring 73 is squeezed and deformed, and the fixing plate 5 moves to the left, so that the limiting groove 6 cancels the limitation of the limiting ring 4, and then the user moves the protective cover 3 upwards, and the needle 2 can be used to limit the sliding of the fixing plate 5 through the support rod 9, so that the fixing plate 5 can slide stably, thereby achieving a relatively high safety effect.

[0036] To sum up: the safety syringe, by arranging the syringe 1, the needle 2, the protective sleeve 3, the limiting ring 4, the fixing plate 5, the limiting groove 6, the tightening component 7, the fixing groove 71, the limiting plate 72, the spring 73, the protective component 8, the protective plate 81, the wheel frame 82 and the rubber wheel 83, solves the problem that in the current use of the syringe, the needle is only protected by a plastic sleeve, and the plastic sleeve is only arranged on the needle by friction, the stability is relatively poor, it is easy to fall off, the needle is exposed, and there is a certain danger.

[0037] It should be noted that, in this article, 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", "comprise" or any other variants 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.

[0038] 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 safety syringe, comprising a syringe (1), characterized in that: The top of the syringe (1) is movably connected to a needle (2), the surface of the needle (2) is covered with a protective sleeve (3), the bottom of the surface of the protective sleeve (3) is fixedly connected to a limit ring (4), the top of the syringe (1) is slidably connected to a fixing plate (5), the fixing plate (5) is used in conjunction with the protective sleeve (3), a limit groove (6) used in conjunction with the limit ring (4) is provided on the right side of the fixing plate (5), a tightening component (7) is provided inside the fixing plate (5), and a protective component (8) is provided on the outside of the fixing plate (5).

2. A safety syringe according to claim 1, characterized in that: The clamping assembly (7) comprises a fixing groove (71), wherein the fixing groove (71) is provided at the top of the fixing plate (5), the interior of the fixing groove (71) is slidably connected to a limiting plate (72), the bottom of the limiting plate (72) is fixedly connected to the top of the syringe (1), the right side of the limiting plate (72) is fixedly connected to a spring (73), and the right side of the spring (73) is fixedly connected to the interior of the fixing groove (71).

3. A safety syringe according to claim 1, characterized in that: The protection assembly (8) comprises a protection plate (81), wherein the protection plate (81) is fixedly connected to the top of the syringe (1), the number of the protection plates (81) is two, and the protection plates (81) are located on the outside of the fixed plate (5). The bottom of the fixed plate (5) is fixedly connected to a wheel frame (82), and the inside of the wheel frame (82) is movably connected to a rubber wheel (83).

4. A safety syringe according to claim 3, characterized in that: The number of the wheel frames (82) is several, and the wheel frames (82) are distributed in a rectangular shape.

5. A safety syringe according to claim 2, characterized in that: A support rod (9) is transversely fixedly connected inside the fixing groove (71), and the support rod (9) is slidably connected to the limiting plate (72), and the number of the support rods (9) is two.

6. A safety syringe according to claim 2, characterized in that: A round rod (10) is transversely fixedly connected inside the fixing groove (71), and the round rod (10) is slidably connected to the limiting plate (72).

7. A safety syringe according to claim 3, characterized in that: There are a plurality of rubber wheels (83), and the rubber wheels (83) are distributed in a rectangular shape. A dustproof plate (11) is fixedly connected to the top of the fixing plate (5).

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