Anti-opening sample tube

Abstract

The utility model relates to the technical field of medical instruments, in particular to an anti-opening sample tube which comprises a tube body and a tube cover in threaded connection with the tube body, an annular block is formed on the outer side of the tube body, and a sleeve which covers the annular block and can also extend into the tube cover is connected to the outer side of the tube body in a sleeved mode. The elastic part is located in the sleeve and located above the ring block, a plurality of guide blocks which are all connected with the ring block in a sliding mode are formed on the inner side of the sleeve, a plurality of upper teeth which extend upwards are formed on the top of the sleeve, and a plurality of lower teeth which can be meshed with the upper teeth are formed in the tube cover. According to the anti-opening sample tube, the tube cover and the upper portion of the tube body are screwed tightly, when the tube cover rotates clockwise, the upper teeth of the tube cover push the lower teeth, so that the sleeve downwards extrudes the elastic part until the tube cover is screwed to the limit, and under the action of the elastic part, the sleeve can be pushed to eject upwards, so that the upper teeth and the lower teeth are meshed; therefore, the effect of locking the pipe cover can be achieved through meshing, and loosening or mistaken opening is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical appliance technical field, concretely is a kind of anti-opening sample tube. BACKGROUND

[0002] Medical sample tube, also known as sampling tube or specimen tube, is a container used for collecting, transporting and storing biological samples such as blood, urine, saliva, tissue, etc. for medical testing, pathological analysis or scientific research. They are usually made of plastic, have different capacities, color-coded caps and specific additives to meet the needs of different types of testing.

[0003] Traditional sample tubes may use simple screw caps or push-seal designs. However, during transportation or handling, if subjected to vibration, dropping or other accidents, the sample tube may become loose or even completely open, affecting the integrity and safety of the sample. If the sample tube is mistakenly opened and there is no obvious sign or change, the user may not be able to detect it in time. This may lead to contaminated or deteriorated samples being used for analysis, resulting in incorrect results. SUMMARY

[0004] To achieve the above purpose, the utility model provides the following technical scheme: an anti-opening sample tube, comprising a tube body and a tube cap threadedly connected to the tube body, the outer side of the tube body is formed with a ring block, a sleeve is sleeved with the ring block covered inside while also extending to the inside of the tube cap, and a spring part is arranged inside the sleeve and above the ring block, the inner side of the sleeve is formed with a plurality of guide blocks slidably connected with the ring block, the top of the sleeve is formed with a plurality of upper teeth extending upward, the inside of the tube cap is formed with a plurality of lower teeth meshing with the upper teeth, and the lower teeth and the upper teeth are both in the shape of a right triangle.

[0005] Further, the tube body is tapered from top to bottom, and the sleeve is sleeved on the upper part of the tube body, forming a concave surface between the sleeve and the lower part of the tube body.

[0006] Further, the inner side of the sleeve is formed with an upper protrusion and a lower protrusion, the upper protrusion is below the outer thread of the tube body, and the lower protrusion is below the ring block.

[0007] Further, the spring part is a spring.

[0008] Compared with the prior art, the technical scheme of the present application has the following advantages:

[0009] The anti-opening sample tube is screwed with the pipe cover and the upper part of the pipe body, when rotating clockwise, the upper teeth of the pipe cover push the lower teeth, thereby extruding the sleeve downward to the elastic part, until the pipe cover is screwed to the limit, under the action of the elastic part, the sleeve is pushed upward, the upper teeth and the lower teeth are engaged, thus the pipe cover can be locked by engagement, preventing loosening or accidental opening. BRIEF DESCRIPTION OF DRAWINGS

[0010] Fig. 1 It is a structural schematic diagram of the utility model;

[0011] Fig. 2 It is a right view sectional schematic diagram of the utility model structure;

[0012] Fig. 3 It is a top view sectional schematic diagram of the utility model structure.

[0013] In the drawing: 1, pipe body; 2, pipe cover; 3, ring block; 4, sleeve; 5, guide block; 6, upper tooth; 7, lower tooth; 8, spring. DETAILED DESCRIPTION

[0014] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0015] Please refer to Figs. 1-3 In the embodiment, the anti-opening sample tube comprises a pipe body 1 and a pipe cover 2 threadedly connected with the pipe opening of the pipe body 1, the outer side of the pipe cover 2 is formed with concaves, thereby playing the anti-slip effect, the outer side of the pipe body 1 is formed with a ring block 3, and an elastic part is arranged above the ring block 3, and a sleeve 4 is sleeved with the ring block 3 and the elastic part inside, the top of the sleeve 4 is formed with a plurality of upper teeth 6 extending upward, the inner wall of the pipe cover 2 extends downward with a plurality of lower teeth 7 engageable with the upper teeth 6, the upper teeth 6 and the lower teeth 7 are both right-angled triangles, so that the inclined surfaces of the upper teeth 6 and the lower teeth 7 are oppositely distributed when engaged, and the inner side of the sleeve 4 is formed with a plurality of guide blocks 5 slidably connected with the ring block 3.

[0016] In the above structure, when the tube body collects the sample, then tighten the tube cover, in the process of tightening, the inclined surface of the lower tooth will be attached to the inclined surface of the upper tooth, so that in the clockwise rotation, the sleeve will be pushed down, under the action of the guide block and the sliding block, the sleeve is limited and guided, preventing the sleeve from rotating, and thus the sleeve is pressed down to extrude the elastic part until the tube cover is tightened to the limit stop, therefore, under the action of the elastic part, the sleeve can be pushed up to make the upper and lower teeth engage, when the tube cover is counterclockwise rotated, the right angle surface of the upper and lower teeth is in contact to achieve clamping, so that loosening and accidental opening can be effectively prevented.

[0017] At the same time, when it is necessary to open, the sleeve is moved downward to extrude the elastic part, so that the upper and lower teeth can be separated, and the tube cover and the tube body can be separated by counterclockwise rotation.

[0018] Further explanation, the tube body 1 is divided into two parts, the upper thin part and the lower thick part, the sleeve 4 is sleeved on the upper thin part of the tube body 1, therefore, the diameter of the sleeve 4 is the same as the diameter of the lower thick part of the tube body 1, and the sleeve 4 and the lower thick part of the tube body 1 form a concave surface. Therefore, medical staff or other equipment can take the tube body through the concave surface, and the concave surface plays a limiting role, so that the tube body can be easily taken and effectively prevented from sliding and falling.

[0019] The upper and lower protrusions are respectively formed at the upper and lower cylinder openings of the inner side of the sleeve 4, the upper protrusion is located below the outer thread of the tube body 1, and the lower protrusion is located below the ring block 3. In the normal state, the elastic part will push the sleeve upward, so that the upper protrusion is attached to the bottom of the outer thread of the tube body, and the lower protrusion is also attached to the bottom of the ring block, and through the cooperation of the outer thread, the ring block and the upper and lower protrusions, the sleeve is limited.

[0020] When the sleeve is pushed down, the upper protrusion extrudes the elastic part in cooperation with the ring block.

[0021] The elastic part can be selected from a spring 8 or an elastic material such as rubber which is sleeved on the outer side of the tube body 1; preferably, the elastic part adopts the spring 8. When the sleeve is pushed down, the upper protrusion will compress the spring through cooperation with the ring block, and when the sleeve is released, the sleeve will be pushed up by the upper protrusion under the elastic force of the spring.

[0022] The working principle of the above embodiment is as follows:

[0023] When the tube body completes sampling, the tube cover is tightened clockwise, the tube cover drives the lower tooth to approach the upper tooth, under the contact of the inclined surfaces, under the sliding of the guide block and the ring block, the sleeve is limited and guided, the sleeve moves up and down, the sleeve is extruded by the spring, until the tube cover is tightened, and the elastic force of the spring will also push the sleeve up, so that the lower tooth and the upper tooth engage, when shaken or fallen, the upper and lower teeth are clamped through engagement, so that the tube cover can be prevented from loosening, and accidental opening can also be prevented.

[0024] When the sample needs to be taken out, the sleeve only needs to be moved downward, the upper teeth are separated from the lower teeth, so that the pipe cover can be normally counterclockwise rotated and separated from the pipe body.

[0025] The whole work flow ends, and the contents not described in detail in the specification all belong to the prior art known by the person skilled in the art.

[0026] It needs to be explained that the relationship terms such as first and second in the present text 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 the entities or operations. Moreover, the term "comprises", "includes" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitation, the element defined by the statement "comprises a" does not exclude the existence of another same element in the process, method, article or equipment including the element.

[0027] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A tamper-evident sample tube comprising a tube body (1) and a cap (2) threadably connected to the tube body (1), characterized in that: The outer side of the pipe body (1) is formed with a ring block (3), and the ring block (3) is sleeved with a sleeve (4) which covers the ring block (3) internally and also can extend to the inside of the pipe cover (2), and is provided with an elastic part which is located inside the sleeve (4) and above the ring block (3), the inner side of the sleeve (4) is formed with a plurality of guide blocks (5) which are all in sliding connection with the ring block (3), the top of the sleeve (4) is formed with a plurality of upward extending upper teeth (6), the inside of the pipe cover (2) is formed with a plurality of lower teeth (7) which can engage with the upper teeth (6), and the lower teeth (7) and the upper teeth (6) are all in right triangle shape.

2. A tamper-evident sample tube as defined in claim 1, wherein: The shape of the pipe body (1) is that the upper part is thin and the lower part is thick, and the sleeve (4) is sleeved on the upper part of the pipe body (1), so that a concave surface is formed between the sleeve (4) and the lower part of the pipe body (1).

3. A tamper-evident sample tube as defined in claim 2, wherein: The inner side of the sleeve (4) is formed with an upper convex block and a lower convex block, the upper convex block is located below the external thread of the pipe body (1), and the lower convex block is located below the ring block (3).

4. A tamper-evident sample tube as defined in claim 2, wherein: The elastic part is a spring (8).

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