An adjustable seal tester fixture

Abstract

This utility model relates to the field of sealing test technology and discloses an adjustable sealing tester fixture, including a support structure and an adjustment structure and test components mounted on the support structure. The adjustment structure includes a sliding groove, a pad, a threaded seat, and a bracket. The pad has a second slot and is slidably connected to the sliding groove via a sliding strip. A screw is threaded onto the threaded seat, with one end of the screw rotatably connected to the side wall of the pad. Limiting grooves are provided at the four corners of the top of the pad. A protrusion matching the limiting groove is fixedly installed at the bottom of the bracket. A third slot is provided at the bottom of the bracket, and an arc-shaped groove is provided on one side of the top of the bracket. This utility model drives the pad to slide by rotating the screw. Combined with the multiple sets of positioning holes in the first, second, and third slots, the fixed position of the bracket can be flexibly adjusted, allowing the two arc-shaped grooves to combine into a circular groove suitable for syringes of different diameters and specifications.

Description

Technical Field

[0001] This utility model relates to the field of sealing test technology, and in particular to an adjustable sealing tester fixture. Background Technology

[0002] In the field of medical devices and pharmaceutical packaging, sealing tests are an important step in assessing the stability of the internal media of a product during storage, transportation, and use. With the large-scale application of pre-filled syringes, injections, and various liquid or gel products, and with the increasing number of medical pre-filled injectable products used in medical aesthetics and clinical treatment, finished products need to undergo sealing tests after filling to verify the integrity of the syringe, stopper, and needle joints, so as to ensure that the liquid medicine will not leak or be contaminated by the outside world during storage and transportation.

[0003] In the existing technology, most commercially available products are designed with empty packaging materials as the core testing object, which cannot be well adapted to the testing needs of pre-filled injection needles containing liquid. They cannot be adapted and adjusted according to the actual size of the product. Most of them continue the fixed clamping mode designed for empty packaging materials, which makes the product prone to displacement and shaking during the test. Utility Model Content

[0004] Given that most existing commercially available products are designed with empty packaging materials as the core testing object, they cannot well adapt to the testing needs of pre-filled injection needles containing liquid, and cannot be adapted and adjusted according to the actual size of the product. Most of them continue the fixed clamping mode designed for empty packaging materials, which leads to problems such as product displacement and shaking during the testing process. Therefore, this utility model is proposed.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an adjustable sealing tester fixture, comprising a support structure and an adjustment structure and a test component mounted on the support structure, characterized in that: the adjustment structure includes a sliding groove, a pad, a threaded seat and a bracket; the pad is provided with a second slot; the pad is slidably connected to the sliding groove via a sliding strip; a screw is threadedly mounted on the threaded seat; one end of the screw is rotatably connected to the side wall of the pad; limit grooves are provided at the four corners of the top of the pad; a protrusion adapted to the limit groove is fixedly mounted at the bottom of the bracket; a third slot is provided at the bottom of the bracket; and an arc-shaped groove is provided on one side of the top of the bracket.

[0006] As a preferred embodiment of the adjustable sealing tester fixture of this utility model, the support structure includes a base plate, a support seat is fixedly installed at the middle position of the bottom end of the base plate, and first slots are symmetrically arranged on both sides of the top end of the base plate.

[0007] As a preferred embodiment of the adjustable sealing tester fixture of this utility model, the slide groove is configured in two sets, each set being a pair, and the slide groove is located at the top of the base plate and on both sides of the first slot.

[0008] In a preferred embodiment of the adjustable sealing tester fixture of this utility model, the slide bar is fixedly installed at the bottom end of the pad and the slide groove is adapted to it, and the threaded seat is fixedly installed on both sides of the top end of the base plate.

[0009] In a preferred embodiment of the adjustable sealing tester fixture of this utility model, the third slot, the second slot and the first slot are identical and aligned, and the first slot, the second slot and the third slot are fixed by screws and nuts.

[0010] As a preferred embodiment of the adjustable sealing tester fixture of this utility model, the test component includes a syringe, a sealing head, and a sealing block. The syringe is held by an arc-shaped groove on the bracket. A connector is fixedly installed at the bottom end of the syringe. A needle is detachably connected to the bottom end of the connector by a thread. The sealing head is fixedly installed at the top of the base plate and directly below the needle. The sealing block is threadedly installed at the bottom end of the connector.

[0011] The beneficial effects of this utility model are: 1. By rotating the screw to drive the pad to slide, and with the design of multiple sets of positioning holes in the first, second and third slots, the fixed position of the bracket can be flexibly adjusted, so that the two arc-shaped slots can be combined into a circular slot to fit syringes of different diameters, effectively expanding the range of compatibility of the clamp with syringes of different specifications. 2. After the position adjustment is completed, the screws and nuts are fixed to lock the base plate, pad and bracket tightly, which can prevent the syringe clamping from being unstable due to loose parts during the test. The cooperation between the protrusion and the limiting groove further restricts the displacement of the bracket and ensures that the arc groove clamps the syringe firmly at all times. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the support structure of this utility model; Figure 3 This is a schematic diagram of the pad block of this utility model; Figure 4 This is a schematic diagram of the bracket of this utility model; Figure 5 This is a schematic diagram of the test components of this utility model; Figure 6 This is a schematic diagram of the sealing block of this utility model.

[0013] Explanation of reference numerals in the attached figures: 1. Support structure; 11. Base plate; 12. Support seat; 13. First slot; 2. Adjustment structure; 201. Slide groove; 202. Pad block; 203. Second slot; 204. Slide bar; 205. Threaded seat; 206. Screw; 207. Bracket; 208. Protrusion; 209. Limiting groove; 210. Third slot; 211. Arc groove; 3. Test assembly; 31. Syringe; 32. Connector; 33. Needle; 34. Sealing head; 35. Sealing block. Detailed Implementation

[0014] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0015] Example Refer to attached figure Figure 1 - Appendix Figure 6 This utility model provides an adjustable sealing tester fixture, including a support structure 1, an adjustment structure 2, and a test component 3. The adjustment structure 2 and the test component 3 are respectively installed on the support structure 1. The support structure 1 includes a base plate 11, a support seat 12 is fixedly installed at the middle position of the bottom end of the base plate 11, and first slots 13 are symmetrically arranged on both sides of the top end of the base plate 11.

[0016] The adjusting structure 2 includes a slide groove 201, a pad 202, a threaded seat 205, and a bracket 207. The slide groove 201 is configured in two sets, each set consisting of a pair. The slide groove 201 is located at the top of the base plate 11 and on both sides of the first slot 13. The pad 202 has a second slot 203. A sliding strip 204, adapted to the slide groove 201, is fixedly installed at the bottom end of the pad 202. The sliding strip 204 extends into the slide groove 201 and is slidably connected to it. The threaded seat 205 is fixedly installed on both sides of the top of the base plate 11. A screw 206 is threaded onto the threaded seat 205, and one end of the screw 206 is connected to the pad. The side wall of block 202 is rotatably connected. The top four corners of the pad block 202 are provided with limiting grooves 209. The bottom end of the bracket 207 is fixedly installed with a protrusion 208 that matches the limiting groove 209. The bottom of the bracket 207 is provided with a third slot 210. The third slot 210, the second slot 203 and the first slot 13 are the same and aligned. The screw passes through the first slot 13, the second slot 203 and the third slot 210 and is then fixed with a nut. The top side of the bracket 207 is provided with an arc groove 211. When the two brackets 207 are aligned, the two arc grooves 211 combine to form a complete circular groove.

[0017] Test component 3 includes syringe 31, sealing head 34, and sealing block 35. Syringe 31 is held by arc groove 211 on bracket 207. Connector 32 is fixedly installed at the bottom end of syringe 31. Needle 33 is detachably connected to the bottom end of connector 32 by thread. Sealing head 34 is fixedly installed at the top of base plate 11 and directly below needle 33. The sealing head 34 seals the needle 33. Sealing block 35 is threaded onto the bottom end of connector 32. Sealing block 35 is screwed into connector 32 to seal connector 32.

[0018] During use, first, according to the size of the syringe 31, rotate the screw 206 to push the pad 202, so that the slide strip 204 at the bottom of the pad 202 slides along the slide groove 201 to the appropriate position. Then, insert the protrusion 208 at the bottom of the bracket 207 into the limiting groove 209 of the pad 202. Use screws to pass through the first slot 13 of the base plate 11, the second slot 203 of the pad 202 and the third slot 210 of the bracket 207 and use nuts to complete the fixation. At this time, the arc grooves 211 at the top of the two brackets 207 combine to form a circular groove that matches the syringe 31 to achieve stable clamping. To perform a sealing test on the piston of the syringe 31, the sealing block 35 can be screwed into the connector 32 to seal it. If a sealing test is required on the contact part of the needle 33, align the needle 33 at the bottom of the connector 32 with and fit it against the sealing head 34. The sealing head 34 seals the needle 33, thereby completing the sealing test of different parts.

[0019] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An adjustable sealing tester fixture, comprising a support structure (1) and an adjustment structure (2) and a test assembly (3) mounted on the support structure (1), characterized in that: The adjustment structure (2) includes a slide groove (201), a pad (202), a threaded seat (205), and a bracket (207). The pad (202) is provided with a second slot (203). The pad (202) is slidably connected to the slide groove (201) through a slide bar (204). A screw (206) is threaded on the threaded seat (205). One end of the screw (206) is rotatably connected to the side wall of the pad (202). Limiting grooves (209) are provided at the four corners of the top of the pad (202). A protrusion (208) that matches the limiting groove (209) is fixedly installed at the bottom of the bracket (207). A third slot (210) is provided at the bottom of the bracket (207). An arc groove (211) is provided on one side of the top of the bracket (207).

2. The adjustable sealing tester fixture according to claim 1, characterized in that: The support structure (1) includes a base plate (11), a support seat (12) is fixedly installed at the middle position of the bottom end of the base plate (11), and first slots (13) are symmetrically arranged on both sides of the top end of the base plate (11).

3. The adjustable sealing tester fixture according to claim 2, characterized in that: The slide (201) is configured in two sets, each set being a pair. The slide (201) is located at the top of the base plate (11) and on both sides of the first slot (13).

4. The adjustable sealing tester fixture according to claim 3, characterized in that: The slide bar (204) is fixedly installed at the bottom end of the pad (202) and is adapted to the slide groove (201), and the threaded seat (205) is fixedly installed on both sides of the top end of the base plate (11).

5. The adjustable sealing tester fixture according to claim 4, characterized in that: The third slot (210), the second slot (203) and the first slot (13) are identical and aligned, and the first slot (13), the second slot (203) and the third slot (210) are fixed by screws and nuts.

6. The adjustable sealing tester fixture according to claim 1, characterized in that: The test assembly (3) includes a syringe (31), a sealing head (34), and a sealing block (35). The syringe (31) is held by an arc groove (211) on a bracket (207). A connector (32) is fixedly installed at the bottom end of the syringe (31). A needle (33) is detachably connected to the bottom end of the connector (32) by a thread. The sealing head (34) is fixedly installed at the top of the base plate (11) and directly below the needle (33). The sealing block (35) is threadedly installed at the bottom end of the connector (32).

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