Leakage-proof medicine charging barrel

Abstract

The utility model relates to the technical field of medicine charging barrels, in particular to a liquid leakage prevention medicine charging barrel which comprises a medicine charging barrel body and a sealing cover, the top end of the medicine charging barrel body is attached to the sealing cover, a sealing structure is arranged at the bottom end of the sealing cover, and the sealing structure comprises a sealing gasket. A sleeve is moved downwards, the sleeve drives a sliding block to move downwards, the sliding block drives a second spring to be compressed along a sliding groove of a medicine containing barrel, then a sealing cover is placed into the medicine containing barrel, then the sleeve is loosened, the sleeve is driven to move upwards through the sliding block under the elastic force of the second spring, and the sleeve drives a plurality of clamping blocks on the outer side to move inwards at the same time; when the sealing cover is taken out, the user moves the sleeve downwards, the user takes out the sealing cover through the circular ring, when the sealing cover is taken out, the clamping blocks and the grooves of the sealing cover are cambered surfaces, the multiple clamping blocks on the outer side move outwards in the upward moving process of the sealing cover, and therefore the capping machine is disassembled.

Description

Technical Field

[0001] The utility model relates to the technical field of medicine cartridges, in particular to a liquid-leakage-proof medicine cartridge. Background Art

[0002] A drug cartridge that can move along a cylindrical rod without leaking liquid.

[0003] During the use of the existing drug-filled cartridge, the sealing gasket inside the drug-filled cartridge is prone to aging due to the long-term use of the drug-filled cartridge, and a gap is prone to appear on the contact surface between the sealing cap on the top of the drug-filled cartridge and the sealing gasket, resulting in reduced sealing performance of the existing drug-filled cartridge. During the use of the drug-filled cartridge, the internal medicine liquid is prone to leak through the gap between the sealing cap and the sealing gasket, thereby affecting the storage of the medicine liquid. In the above-mentioned document, the drug-filled cartridge and the top sealing cap are connected by threads, and the user needs to use a corresponding model of hexagonal wrench to connect the sealing cap to the drug-filled cartridge, which makes the disassembly and installation between the drug-filled cartridge and the sealing cap very limited, making it inconvenient for the user to disassemble and install the sealing cap of the drug-filled cartridge. Utility Model Content

[0004] The utility model aims to solve the problem that the sealing gasket of the existing medicine cartridge is easily aged due to long-term use, resulting in leakage of the internal medicine liquid, and the problem that it is inconvenient for users to disassemble and install the sealing cover of the medicine cartridge, and proposes a liquid leakage-proof medicine cartridge.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A leak-proof liquid-filled drug cartridge is designed, comprising a drug cartridge and a sealing cover, wherein the top end of the drug cartridge is fitted with the sealing cover, the bottom end of the sealing cover is provided with a sealing structure, the sealing structure comprises a sealing gasket, the top end of the sealing gasket is fitted with the sealing cover, the bottom end of the sealing gasket is fixedly connected to a support block, the bottom end of the support block is fixedly connected to a limit block, the top end of the limit block is fixedly connected to one end of a first spring, and the other end of the first spring is fixedly connected to the drug cartridge.

[0007] Preferably, the outer walls of the plurality of support blocks are all slidably connected to the drug cartridge, and the outer wall of the sealing gasket is in contact with the drug cartridge.

[0008] Preferably, the inner wall of the sealing gasket fits the medicine cartridge.

[0009] Preferably, an auxiliary structure is provided on the outer side of the drug cartridge, and the auxiliary structure includes a second spring, one end of the second spring is fixedly connected to the drug cartridge, and the other end of the second spring is fixedly connected to a slider, and the outer ends of multiple sliders are fixedly connected to a sleeve, and multiple grooves of the sleeve are respectively pressed against multiple blocks.

[0010] Preferably, the middle part of the outer wall of the clamping block is slidably connected to the medicine cartridge, the inner side of the outer wall of the clamping block is fitted with the sealing cover, and the top end of the sealing cover is fixedly connected to the circular ring.

[0011] Preferably, the outer wall of the sliding block is slidably connected to the drug cartridge, and the inner wall of the sleeve is slidably connected to the drug cartridge.

[0012] The utility model provides a leak-proof liquid medicine cartridge, which has the beneficial effect that the sleeve is moved downward, the sleeve drives the slider to move downward, the slider drives the second spring to be compressed along the slide groove of the medicine cartridge, and then the cover is placed inside the medicine cartridge, and then the sleeve is released, the elastic force of the second spring drives the sleeve to move upward through the slider, and the sleeve drives multiple outer clamping blocks to move inward at the same time, so as to fix the cover, and when taking out the cover, the user moves the sleeve downward, and the user takes out the cover through the ring, and when taking out the cover, the clamping block and the groove of the cover are arc surfaces, so that during the upward movement of the cover, multiple outer clamping blocks move outward, so that the cover machine is disassembled, and the original connection method is replaced by this method, and there is no need to use external tools, thereby reducing the limitation of cover disassembly, making the disassembly and installation of the cover more convenient;

[0013] After the sealing cap is installed, the sealing cap squeezes the sealing gasket and moves downward, and the sealing gasket drives the supporting block to move downward, and the supporting block drives the first spring to be compressed through the limiting block, so that when the sealing gasket ages due to long-term use and a gap appears between the sealing cap and the sealing gasket, the elastic force of the first spring drives the limiting block to move upward, and the limiting block drives the supporting block to move upward, and the supporting block drives the sealing gasket to move upward, thereby filling the gap between the sealing gasket and the sealing cap, improving the sealing performance of the drug cartridge and avoiding leakage of the drug liquid inside the drug cartridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 4 for Figure 3 Schematic diagram of the structure of A.

[0018] In the figure: 1, drug cartridge, 2, sealing cover, 3, sealing structure, 301, sealing gasket, 302, supporting block, 303, limiting block, 304, first spring, 4, auxiliary structure, 4a1, second spring, 4a2, slider, 4a3, sleeve, 4b1, protrusion, 5, ring, 6, clamping block. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings:

[0020] Embodiment 1:

[0021] See attached Figure 1-4 In this embodiment, a leak-proof liquid drug cartridge includes a drug cartridge 1 and a sealing cover 2. The top of the drug cartridge 1 is in contact with the sealing cover 2. The bottom of the sealing cover 2 is provided with a sealing structure 3. The sealing structure 3 includes a sealing gasket 301. The top of the sealing gasket 301 is in contact with the sealing cover 2. The elastic coefficients of the first spring 304 and the second spring 4a1 can be selected according to actual use conditions, such as Figure 4 The first spring 304 is shown in a compressed state, so that when the sealing gasket 301 ages and a gap appears between the cover 2 and the sealing gasket 301, the elastic force of the first spring 304 drives the limit block 303 to move upward, the limit block 303 drives the support block 302 to move upward, and the support block 302 drives the sealing gasket 301 to move upward, thereby filling the gap between the sealing gasket 301 and the cover 2, the bottom end of the sealing gasket 301 is fixedly connected to the support block 302, the bottom end of the support block 302 is fixedly connected to the limit block 303, the top end of the limit block 303 is fixedly connected to one end of the first spring 304, and the other end of the first spring 304 is fixedly connected to the drug cartridge 1, the outer walls of the multiple support blocks 302 are slidably connected to the drug cartridge 1, the outer wall of the sealing gasket 301 fits with the drug cartridge 1, and the inner wall of the sealing gasket 301 fits with the drug cartridge 1.

[0022] The outer side of the drug cartridge 1 is provided with an auxiliary structure 4, which includes a second spring 4a1, one end of which is fixedly connected to the drug cartridge 1, and the other end of which is fixedly connected to a slider 4a2. The outer ends of the multiple sliders 4a2 are fixedly connected to the sleeve 4a3. The user moves the sleeve 4a3 downward, and the sleeve 4a3 drives the slider 4a2 to move downward. The slider 4a2 drives the second spring 4a1 to be compressed along the slide groove of the drug cartridge 1, and then the user seals the drug cartridge 1 through the ring 5. The cover 2 is taken out. When the cover 2 is taken out, the grooves of the block 6 and the cover 2 are arc surfaces, so that when the cover 2 moves upward, the multiple blocks 6 on the outside move outward, and the multiple grooves of the sleeve 4a3 are respectively pressed against the multiple blocks 6. The middle part of the outer wall of the block 6 is slidably connected to the drug cartridge 1, and the inner side of the outer wall of the block 6 is fitted with the cover 2. The top of the cover 2 is fixedly connected to the ring 5, the outer wall of the slider 4a2 is slidably connected to the drug cartridge 1, and the inner wall of the sleeve 4a3 is slidably connected to the drug cartridge 1.

[0023] Working principle:

[0024] The user moves the sleeve 4a3 downward, and the sleeve 4a3 drives the slider 4a2 to move downward. The slider 4a2 compresses the second spring 4a1 along the slide groove of the drug-filled cartridge 1, and then puts the cover 2 into the drug-filled cartridge 1. Then, the sleeve 4a3 is released, and the elastic force of the second spring 4a1 drives the sleeve 4a3 to move upward through the slider 4a2. The sleeve 4a3 drives the multiple outer blocks 6 to move inward at the same time, thereby fixing the cover 2. When taking out the cover, the user moves the sleeve 4a3 downward, and the user takes out the cover 2 through the ring 5. When the cover 2 is taken out, the groove of the block 6 and the cover 2 is an arc surface, so that during the upward movement of the cover 2, the multiple outer blocks 6 move outward, thereby disassembling the cover 2. This method replaces the original connection method, and no external tools are needed, thereby reducing the limitation of disassembling the cover 2, making the disassembly and installation of the cover more convenient.

[0025] After the cover 2 is installed, the cover 2 squeezes the sealing gasket 301 and moves downward, and the sealing gasket 301 drives the support block 302 to move downward, and the support block 302 drives the first spring 304 to be compressed through the limit block 303, so that when the sealing gasket 301 is aged due to long-term use and a gap appears between the cover 2 and the sealing gasket 301, the elastic force of the first spring 304 drives the limit block 303 to move upward, and the limit block 303 drives the support block 302 to move upward, and the support block 302 drives the sealing gasket 301 to move upward, thereby filling the gap between the sealing gasket 301 and the cover 2, thereby improving the sealing performance of the drug cartridge and avoiding leakage of the drug liquid inside the drug cartridge.

[0026] Embodiment 2:

[0027] See attached Figure 1-4In the present embodiment, a leak-proof liquid-filled drug cartridge is provided, wherein the auxiliary structure 4 may further include a protrusion 4b1, wherein the inner ends of the plurality of protrusions 4b1 are fixedly connected to the sleeve 4a3, and the plurality of protrusions 4b1 are used to increase the friction between the sleeve 4a3 and the user's hand, making it easier to remove the cover.

[0028] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A leak-proof drug cartridge, comprising a drug cartridge (1) and a sealing cap (2), wherein the top of the drug cartridge (1) is in contact with the sealing cap (2), and characterized in that: A sealing structure (3) is provided at the bottom end of the sealing cover (2), and the sealing structure (3) includes a sealing gasket (301). The top end of the sealing gasket (301) is in contact with the sealing cover (2), the bottom end of the sealing gasket (301) is fixedly connected to the support block (302), the bottom end of the support block (302) is fixedly connected to the limit block (303), the top end of the limit block (303) is fixedly connected to one end of the first spring (304), and the other end of the first spring (304) is fixedly connected to the drug cartridge (1).

2. A leak-proof liquid-filled drug cartridge according to claim 1, characterized in that: The outer walls of the plurality of support blocks (302) are all slidably connected to the drug cartridge (1), and the outer wall of the sealing gasket (301) is in contact with the drug cartridge (1).

3. The leak-proof liquid-filled drug cartridge according to claim 1, characterized in that: The inner wall of the sealing gasket (301) is in contact with the medicine cartridge (1).

4. The leak-proof liquid-filled drug cartridge according to claim 1, characterized in that: An auxiliary structure (4) is arranged on the outer side of the drug cartridge (1), and the auxiliary structure (4) comprises a second spring (4a1), one end of the second spring (4a1) is fixedly connected to the drug cartridge (1), and the other end of the second spring (4a1) is fixedly connected to a slider (4a2), and the outer ends of a plurality of sliders (4a2) are fixedly connected to a sleeve (4a3), and a plurality of grooves of the sleeve (4a3) are respectively pressed against a plurality of blocks (6).

5. The leak-proof liquid-filled drug cartridge according to claim 4, characterized in that: The middle part of the outer wall of the clamping block (6) is slidably connected to the drug cartridge (1), the inner side of the outer wall of the clamping block (6) is in contact with the sealing cover (2), and the top end of the sealing cover (2) is fixedly connected to the circular ring (5).

6. The leak-proof liquid-filled drug cartridge according to claim 4, characterized in that: The outer wall of the slider (4a2) is slidably connected to the drug cartridge (1), and the inner wall of the sleeve (4a3) is slidably connected to the drug cartridge (1).

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