Injector with replaceable bottle body

Abstract

The utility model relates to the technical field of injectors, and provides an injector with a replaceable bottle body, which comprises a push rod, and the inner wall of the push rod is connected with a handle in a sliding manner. According to the utility model, the reset assembly is arranged in the syringe, so that the used syringe can be automatically reset, the convenience of a user during operation is improved, the syringe is fashionable, the disposable fresh-keeping bottle can be arranged in the syringe, a material body stored in the disposable fresh-keeping bottle can be squeezed out for use, and the disposable fresh-keeping bottle is convenient to use. Meanwhile, a new fresh-keeping bottle can be conveniently replaced after the disposable fresh-keeping bottle is used, so that one set of injector can be matched with a plurality of disposable fresh-keeping bottles for use, and meanwhile, the disposable fresh-keeping bottles are less in material and have an environment-friendly concept. In the prior art, the packing material can cause more waste and is not environment-friendly enough, and the push rod of the injector does not have a reset function, so that the injector is relatively single and stiff to operate and has no fashion sense.

Description

Technical Field

[0001] The utility model relates to the technical field of syringes, and in particular to a syringe with a replaceable bottle body. Background Art

[0002] A syringe is a common medical device that mainly uses a needle to extract or inject gas or liquid. The syringe consists of a syringe with a small hole at the front end and a matching piston core rod. It is used to inject a small amount of liquid or gas into areas that are inaccessible by other methods or to extract it from those places. When the core rod is pulled out, the liquid or gas is sucked from the small hole at the front end of the syringe, and the liquid or gas is squeezed out when the core rod is pushed in.

[0003] Traditional disposable syringes for cosmetic bottles consist of a bottle body, a push rod and a piston, which are discarded as a whole after use. Such packaging materials will cause a lot of waste and are not environmentally friendly. In addition, the push rod of this syringe has no reset function, and the operation is relatively simple and rigid, without a sense of fashion. For this reason, we proposed a syringe with a replaceable bottle body. Utility Model Content

[0004] The utility model provides a syringe with a replaceable bottle body, which solves the problem in the related art that the syringe is discarded as a whole after use, such packaging materials will cause more waste and are not environmentally friendly, and the push rod of the syringe has no reset function, the operation is relatively simple and rigid, and there is no fashion sense.

[0005] The technical solution of the utility model is as follows: a syringe with a replaceable bottle body, comprising a push rod, the inner wall of the push rod is slidably connected to a handle, the interior of the push rod is provided with a reset spring and a buckle nail, the push rod, the reset spring, the handle and the buckle nail constitute a syringe reset assembly, the inner wall of the push rod is fixedly connected to a cylinder, a fresh-keeping bottle is placed inside the handle, a piston is provided inside the fresh-keeping bottle, the fresh-keeping bottle comprises a long and thin rod connected to the bottle body, an upper cover is provided above the handle, and two magnets are provided on the inner walls of the handle and the upper cover.

[0006] Preferably, the return spring is sleeved on the outer surface of the cylinder, the push rod is fixedly connected to the return spring, and the handle is fixedly connected to the return spring. The compression and resetting of the return spring can be guided by the cylinder. As the handle gradually slides into the push rod, the return spring will be gradually compressed, causing it to undergo elastic deformation.

[0007] Preferably, a buckle ring is fixedly connected to the outer surface of the rivet, and the buckle ring is adapted to the cylinder. The buckle ring is fixed to the outer surface of the rivet, and a groove adapted to the buckle ring is provided on the inner wall of the cylinder, so that the rivet and the cylinder can be fastened and connected.

[0008] Preferably, two viewing windows are provided on the outer surface of the handle, and the two viewing windows are symmetrically arranged with the midline of the handle as the axis of symmetry. Through the two symmetrically provided viewing windows, the user can conveniently observe the remaining amount of the contents of the fresh-keeping bottle, thereby making a better judgment on the injection amount.

[0009] Preferably, a concave ring is provided at the connection between the bottle body of the fresh-keeping bottle and the long thin rod, and a discharge hole is opened at the connection between the bottle body of the fresh-keeping bottle and the long thin rod. By providing the concave ring, it is convenient for users to separate the bottle body of the fresh-keeping bottle from the long thin rod, so that the material stored in the fresh-keeping bottle can be squeezed out through the discharge hole for use.

[0010] Preferably, the long thin rod passes through the upper cover and extends to the top of the upper cover, and the top end of the long thin rod is passivated. By passivating the top end of the long thin rod, the safety of the user when bending the long thin rod can be improved, and the tip of the long thin rod can be prevented from injuring the user's hand.

[0011] Preferably, the magnet is tightly fitted into the reserved holes on the handle and the upper cover in the direction of the magnetic poles. The magnet is fixed in the reserved holes in the direction of the magnetic poles, which can ensure the stability of the handle and the upper cover when connected, thereby achieving stable positioning of the fresh-keeping bottle.

[0012] The working principle and beneficial effects of the utility model are:

[0013] 1. The utility model realizes automatic resetting of the used syringe by means of a reset component arranged inside the syringe, thereby improving the convenience of operation for the user and providing a sense of fashion. A disposable fresh-keeping bottle can be loaded into the syringe to squeeze out the material stored in the disposable fresh-keeping bottle for use. At the same time, a new fresh-keeping bottle can be conveniently replaced after use, thereby realizing that a set of syringes can be used with multiple disposable fresh-keeping bottles. At the same time, since less material of the disposable fresh-keeping bottles is discarded, the concept of environmental protection is realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0015] Figure 1 It is a front view schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is an exploded schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 3 This is a front cross-sectional view of the three-dimensional structure of the utility model;

[0018] Figure 4 This is a schematic diagram of replacing the fresh-keeping bottle of the utility model;

[0019] Figure 5This is a schematic diagram of the use of the syringe of the utility model.

[0020] In the figure: 1. push rod; 11. cylinder; 2. return spring; 3. handle; 31. window; 32. reserved hole; 4. buckle; 41. buckle ring; 5. piston; 6. fresh-keeping bottle; 61. long thin rod; 62. concave ring; 63. discharge hole; 7. upper cover; 8. magnet. DETAILED DESCRIPTION

[0021] The following will be combined with 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 of 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] Example 1

[0023] like Figure 1 to Figure 5 As shown, this embodiment proposes a syringe with a replaceable bottle body, including a push rod 1, the inner wall of the push rod 1 is slidably connected to a handle 3, the interior of the push rod 1 is provided with a reset spring 2 and a pin 4, and the push rod 1, the reset spring 2, the handle 3 and the pin 4 constitute a syringe reset assembly.

[0024] The push rod 1, the reset spring 2, the handle 3 and the buckle pin 4 together constitute a syringe reset component, through which the syringe can be reset after use, thereby improving the convenience of the user during operation and having a sense of fashion.

[0025] The inner wall of the push rod 1 is fixedly connected with a cylinder 11 , the return spring 2 is sleeved on the outer surface of the cylinder 11 , the push rod 1 is fixedly connected with the return spring 2 , and the handle 3 is fixedly connected with the return spring 2 .

[0026] The cylinder 11 is fixed to the inner bottom wall of the push rod 1. The cylinder 11 can guide the compression and resetting of the reset spring 2. When the handle 3 gradually slides into the push rod 1, the reset spring 2 will be gradually compressed, causing it to produce elastic deformation.

[0027] The outer surface of the rivet 4 is fixedly connected with a buckle ring 41, and the buckle ring 41 is adapted to the cylinder 11, see Figure 2 and Figure 3 It can be seen that the buckle ring 41 is fixed to the outer surface of the rivet 4, and the inner wall of the cylinder 11 is provided with a groove matched with the buckle ring 41, so that the rivet 4 and the cylinder 11 can be fastened and connected.

[0028] A fresh-keeping bottle 6 is placed inside the handle 3, and a piston 5 is arranged inside the fresh-keeping bottle 6. The fresh-keeping bottle 6 includes a long thin rod 61 connected to the bottle body, a concave ring 62 is arranged at the connection between the bottle body of the fresh-keeping bottle 6 and the long thin rod 61, and a discharge hole 63 is opened at the connection between the bottle body of the fresh-keeping bottle 6 and the long thin rod 61.

[0029] The fresh-keeping bottle 6 is placed in the handle 3 for subsequent injection. By providing the concave ring 62, it is convenient for the user to separate the bottle body of the fresh-keeping bottle 6 from the long thin rod 61, so that the material stored in the fresh-keeping bottle 6 can be squeezed out through the discharge hole 63 for use.

[0030] An upper cover 7 is provided above the handle 3, and a long thin rod 61 passes through the upper cover 7 and extends to the top of the upper cover 7. Two magnets 8 are provided on the inner walls of the handle 3 and the upper cover 7. The fresh-keeping bottle 6 is placed in the inner hole 33 of the handle 3, and then the upper cover 7 is passed through the long thin rod 61 and aligned with the handle 3. The handle 3 and the upper cover 7 are connected by using the magnets 8 fixed in the handle 3 and the upper cover 7, thereby achieving the clamping and fixation of the fresh-keeping bottle 6.

[0031] The utility model is attached Figure 4 42 is the top surface of the buckle nail 4, attached Figure 4 33 is the inner hole of the handle 3 , and 71 is the inner hole of the upper cover 7 .

[0032] Example 2

[0033] like Figure 1 to Figure 5 As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment also proposes to passivate the top end of the long thin rod 61. By passivating the top end of the long thin rod 61, the safety of the user when bending the long thin rod 61 can be improved, and the tip of the long thin rod 61 can be prevented from injuring the user's hand.

[0034] Two viewing windows 31 are provided on the outer surface of the handle 3, and the two viewing windows 31 are symmetrically arranged with the mid-vertical line of the handle 3 as the symmetry axis. Through the two symmetrically provided viewing windows 31, the user can conveniently observe the remaining amount of the contents of the fresh-keeping bottle 6, so as to make a better judgment on the injection amount.

[0035] The magnet 8 is tightly fitted in the reserved holes 32 on the handle 3 and the upper cover 7 according to the magnetic pole direction. The magnet 8 is fixed in the reserved hole 32 according to the magnetic pole direction, which can ensure the stability of the handle 3 and the upper cover 7 when connected, thereby achieving stable positioning of the fresh-keeping bottle 6.

[0036] The components in the drawings of the present invention are only for style reference and are not for specific size standards. The specific sizes are determined according to the actual requirements of production. At the same time, the materials of the components can be replaced accordingly according to actual needs.

[0037] Working principle: When using the replaceable syringe, place the fresh-keeping bottle 6 in the inner hole 33 of the handle 3, then pass the upper cover 7 through the long thin rod 61 and align it with the handle 3, use the magnet 8 fixed in the handle 3 and the upper cover 7 to connect the handle 3 and the upper cover 7, and then clamp and fix the fresh-keeping bottle 6, then the user bends the long thin rod 61 with force and breaks it from the concave ring 62 to expose the discharge hole 63 of the fresh-keeping bottle 6, then put the middle finger and index finger on the upper cover 7, and use the thumb to push the push rod 1, so that the handle 3 gradually slides into the inner wall of the push rod 1, at this time the cylinder 11 drives the buckle 4 The top surface 42 drives the piston 5 in the fresh-keeping bottle 6 to move, and squeezes the contents in the fresh-keeping bottle 6 out from the discharge hole 63. The remaining amount of the contents in the fresh-keeping bottle 6 can be observed through the handle 3. At the same time, when the handle 3 gradually slides into the push rod 1, it will squeeze the return spring 2 to cause it to produce elastic deformation. After the contents in the fresh-keeping bottle 6 are injected, the user's hand leaves the upper cover 7, and under the resetting action of the return spring 2, the syringe can be driven to return to the initial position. Then the user unplugs the upper cover 7, takes out the used fresh-keeping bottle 6, and replaces it with a new fresh-keeping bottle 6. The above operation can be repeated for multiple uses.

[0038] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A syringe with a replaceable bottle, characterized in that: The invention comprises a push rod (1), the inner wall of which is slidably connected to a handle (3), a reset spring (2) and a buckle pin (4) are arranged inside the push rod (1), and the push rod (1), the reset spring (2), the handle (3) and the buckle pin (4) constitute a syringe reset assembly; The inner wall of the push rod (1) is fixedly connected to a cylinder (11), the cylinder (11) is slidably connected to a handle (3), a fresh-keeping bottle (6) is placed inside the handle (3), a piston (5) is arranged inside the fresh-keeping bottle (6), the fresh-keeping bottle (6) comprises a long thin rod (61) connected to the bottle body, an upper cover (7) is arranged above the handle (3), and two magnets (8) are arranged on the inner walls of the handle (3) and the upper cover (7).

2. A syringe with a replaceable bottle body according to claim 1, characterized in that: The return spring (2) is sleeved on the outer surface of the cylinder (11), the push rod (1) is fixedly connected to the return spring (2), and the handle (3) is fixedly connected to the return spring (2).

3. A syringe with a replaceable bottle body according to claim 1, characterized in that: A buckle ring (41) is fixedly connected to the outer surface of the buckle nail (4), and the buckle ring (41) is adapted to the cylinder (11).

4. A syringe with a replaceable bottle body according to claim 1, characterized in that: The outer surface of the handle (3) is provided with two viewing windows (31), and the two viewing windows (31) are symmetrically arranged with the mid-vertical line of the handle (3) as a symmetry axis.

5. The syringe with a replaceable bottle body according to claim 1, characterized in that: A concave ring (62) is provided at the connection between the bottle body of the fresh-keeping bottle (6) and the long thin rod (61), and a discharge hole (63) is provided at the connection between the bottle body of the fresh-keeping bottle (6) and the long thin rod (61).

6. A syringe with a replaceable bottle body according to claim 5, characterized in that: The long thin rod (61) passes through the upper cover (7) and extends to the top of the upper cover (7), and the top end of the long thin rod (61) is passivated.

7. A syringe with a replaceable bottle body according to claim 1, characterized in that: The magnet (8) is tightly fitted into the reserved holes (32) on the handle (3) and the upper cover (7) in the direction of the magnetic poles.

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