Test tube bottle cap

Abstract

The utility model belongs to the technical field of test tubes, and discloses a test tube bottle cap which comprises a test tube body, the outer surface of the test tube body is fixedly sleeved with a lower bottle cap, the top end of the lower bottle cap is hinged to an upper bottle cap, a rectangular groove is formed in the top end of the lower bottle cap, and the inner walls of the two sides of the rectangular groove are jointly and rotationally connected with a rotating rod. A rotating rod is arranged at the top end of the lower bottle cap body, a buckle connecting rod is fixedly connected to the outer surface of the rotating rod in a sleeved mode, two first reset springs are fixedly connected to the bottom end of the buckle connecting rod, and the top ends of the two first reset springs are jointly and fixedly connected with the lower inner wall of the rectangular groove. Under the action of the first reset spring and the second reset spring, the buckle connecting rod can achieve the stable buckle fixing effect on the clamping block, tight closing of the upper bottle cap and the lower bottle cap is achieved, when the bottle cap needs to be opened, the bottle cap can be easily opened only by pressing the switch, and the problem that an existing test tube with a cover is strenuous to open and close is effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to test tube technical field, and specifically is a test tube bottle lid. BACKGROUND

[0002] With the rapid development of biotechnology, chemical analysis and medical testing fields, test tubes play an indispensable role in various experiments and detection processes, and the performance of test tube bottle caps has also been challenged and required higher than ever. Under the background of precision medicine, gene sequencing and molecular diagnostic experiments require precise processing and long-term preservation of extremely small amounts of biological samples.

[0003] At the same time, the patent specification with the application number CN209076708U discloses a test tube, "including a tube body with an open end and a sealing plug fixed at the open end, the sealing plug includes a circular ring-shaped abutting portion abutting against the end of the open end and forming a seal, and a circular disc-shaped sealing portion located inside the abutting portion and capable of shielding the port of the open end, a plurality of long strip-shaped puncture grooves are radially arranged on the end face of the sealing portion towards the tube body, and one end of the plurality of puncture grooves extends to the puncture point located at the center of the end face of the sealing portion, and the other end of the plurality of puncture grooves has a spacing between the connection of the sealing portion and the abutting portion, and the bottom of the puncture groove has a spacing between the sealing portion and the end face of the other end of the tube body";

[0004] The existing test tube has the problem of poor sealing effect during use, which easily leads to evaporation of the liquid in the test tube or contamination by the outside world. Secondly, most of the existing test tubes do not have a bottle cap, and even if some of them are equipped with a bottle cap, the structure is relatively simple. Such bottle caps usually need a lot of force to screw during opening and closing, resulting in poor convenience of use.

[0005] Therefore, a test tube bottle cap is proposed for the above problems. UTILITY MODEL CONTENTS

[0006] To solve the problems raised in the background art, the utility model provides a test tube bottle cap, which greatly improves the convenience of use, effectively solves the problem of opening and closing the existing capped test tube, effectively avoids the evaporation of the liquid in the test tube and the contamination by the outside world, and greatly improves the poor sealing effect of the existing test tube.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a test tube cap, comprising a test tube body, a lower cap fixedly sleeved on the outer surface of the test tube body, an upper cap hinged to the top of the lower cap, a rectangular groove formed at the top of the lower cap, a rotating rod rotatably connected to the inner walls of both sides of the rectangular groove, a snap-fit ​​connecting rod fixedly sleeved on the outer surface of the rotating rod, two return springs fixedly connected to the bottom end of the snap-fit ​​connecting rod, and the top ends of the two return springs fixedly connected to the lower inner wall of the rectangular groove.

[0008] Preferably, a circular groove is provided at one end of the lower bottle cap, the circular groove is connected to a rectangular groove, a push switch is slidably sleeved on the inner surface of the circular groove, one end of the push switch passes through the circular groove and is fixedly connected to a push plate, and one side of the push plate is abutted against one end of the buckle connecting rod.

[0009] Preferably, two reset springs are fixedly connected to one side of the lower inner wall of the rectangular groove, and a lifting adjustment block is fixedly connected to the top of the two reset springs. One end of the lifting adjustment block is slidably connected to one side of the inner wall of the rectangular groove.

[0010] Preferably, a guide groove is provided on one inner wall of the rectangular groove, and one end of the lifting adjustment block is fixedly connected to a guide groove that is used in conjunction with the guide block. The cross-section of the guide groove is convex.

[0011] Preferably, the bottom end of the upper bottle cap is fixedly connected to a snap-fit ​​block for use with a snap-fit ​​rod, and a soft silicone layer is provided at the contact point between the snap-fit ​​block and the snap-fit ​​rod.

[0012] Preferably, the bottom end of the upper bottle cap is fixedly connected with an annular sealing strip, and the top end of the lower bottle cap has an annular groove. The annular sealing strip is made of highly elastic rubber material, and both the annular groove and the annular sealing strip have a semi-circular cross-sectional shape. The cross-sectional size of the annular groove is slightly smaller than that of the annular sealing strip.

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

[0014] 1. This utility model features a design where the top of the lower bottle cap is hinged to the upper bottle cap. Under the action of the return spring, the latching rod can stably latch and fix the latching block, achieving a tight closure of the upper and lower bottle caps. When it is necessary to open, the bottle cap can be easily opened by simply pressing the switch, which greatly improves the convenience of use and effectively solves the problem of the difficulty in opening and closing existing capped test tubes.

[0015] 2. This utility model, by setting a sealing strip and a corresponding annular groove at the top of the lower bottle cap, allows the annular sealing strip to be tightly embedded in the annular groove when the bottle cap is closed, due to the elasticity of the annular sealing strip and the matching size of the two, thus forming a good sealing structure. This effectively prevents the liquid in the test tube from evaporating and being contaminated by the outside world, and greatly improves the poor sealing effect of existing test tubes. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the upper bottle cap opening and removal push switch of this utility model;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the lower bottle cap of this utility model;

[0019] Figure 4 This is a side view of the cross-sectional structure of the upper and lower bottle caps of this utility model;

[0020] Figure 5 This is a schematic diagram of the lifting and adjusting block structure of this utility model.

[0021] In the picture: 1. Test tube body; 2. Top cap;

[0022] 31. Lower bottle cap; 32. Second return spring; 33. Lifting adjustment block; 34. First return spring; 35. Rotating rod; 36. Guide groove; 37. Guide block; 38. Buckle connecting rod; 39. Push plate;

[0023] 4. Push-button switch; 5. Circular groove; 6. Snap-fit ​​block; 7. Rectangular groove; 8. Annular groove; 9. Annular sealing strip. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1 to 5As shown, this utility model provides a test tube cap, including a test tube body 1. A lower cap 3 is fixedly sleeved on the outer surface of the test tube body 1. An upper cap 2 is hinged to the top of the lower cap 3. A rectangular groove 7 is formed at the top of the lower cap 3. A rotating rod 34 is rotatably connected to the inner walls of both sides of the rectangular groove 7. A snap-fit ​​connecting rod 37 is fixedly sleeved on the outer surface of the rotating rod 34. Two return springs 33 are fixedly connected to the bottom end of the snap-fit ​​connecting rod 37. The top ends of the two return springs 33 are fixedly connected to the lower inner wall of the rectangular groove 7, so that the snap-fit ​​connecting rod 37 can rotate flexibly within a certain range and maintain a stable position under normal conditions. This facilitates the locking and unlocking of the cap by cooperating with the snap-fit ​​block 6 of the upper cap 2. The structure is simple and has high reliability.

[0026] Specifically, a circular groove 5 is provided at one end of the lower bottle cap 3. The circular groove 5 is connected to the rectangular groove 7. A push switch 4 is slidably sleeved on the inner surface of the circular groove 5. One end of the push switch 4 passes through the circular groove 5 and is fixedly connected to a push plate 38. One side of the push plate 38 is attached to one end of the latching rod 37, providing a convenient way to open the bottle cap. Simply press the push switch 4 to push the latching rod 37 through the push plate 38, thereby easily releasing the locking state of the upper bottle cap 2 and the lower bottle cap 3. The operation is convenient and quick, improving the efficiency of use.

[0027] like Figures 1 to 5 As shown, two return springs 31 are fixedly connected to one side of the lower inner wall of the rectangular groove 7. The top ends of the two return springs 31 are fixedly connected to a lifting adjustment block 32. One end of the lifting adjustment block 32 is slidably connected to one side of the inner wall of the rectangular groove 7. The combination of the return springs 31 and the lifting adjustment block 32 can be used to hold the upper bottle cap 2's locking block 6, providing additional locking force when the bottle cap is closed, ensuring that the bottle cap is tightly closed and preventing the bottle cap from being loosened due to accidental collisions or other situations. At the same time, by rotating the latching rod 37, the lifting adjustment block 32 can be pushed out of the latching rod.

[0028] Furthermore, a guide groove 35 is provided on one inner wall of the rectangular groove 7. One end of the lifting adjustment block 32 is fixedly connected to the guide groove 35 used in conjunction with the guide block 36. The cross-section of the guide groove 35 is "convex". The cooperation between the guide groove 35 and the guide block 36 ensures the stability and directionality of the lifting adjustment block 32 during the movement, so that it can only move up and down along the predetermined trajectory, effectively preventing jamming or malfunction caused by the offset of the lifting adjustment block 32.

[0029] like Figures 1 to 5As shown, the bottom of the upper bottle cap 2 is fixedly connected to a snap-fit ​​block 6 that works with the snap-fit ​​rod 37. A soft silicone layer is provided at the contact point between the snap-fit ​​block 6 and the snap-fit ​​rod 37. The cooperation between the snap-fit ​​block 6 and the snap-fit ​​rod 37 achieves the initial locking of the bottle cap. The soft silicone layer can increase the friction at the snap-fit ​​point, making the closure more stable, and can also play a role in sealing and buffering, preventing liquid leakage and reducing wear on the parts.

[0030] It is worth noting that the bottom of the upper bottle cap 2 is fixedly connected with an annular sealing strip 9, and the top of the lower bottle cap 3 has an annular groove 8. The annular sealing strip 9 is made of high-elasticity rubber material. The cross-sectional shape of both the annular groove 8 and the annular sealing strip 9 is semi-circular. The cross-sectional size of the annular groove 8 is slightly smaller than that of the annular sealing strip 9. The design of the annular sealing strip 9 and the annular groove 8 further enhances the sealing performance of the bottle cap. The high-elasticity rubber material can adapt well to the small gaps and shape changes between the bottle body and the bottle cap, effectively preventing the liquid in the test tube from evaporating or external impurities from entering, and ensuring the stability and purity of the substance in the test tube.

[0031] The structure of the electric motor is existing technology and will not be described in detail. Additionally, this utility model also includes a power supply, controller, and switch, which are not the main technical points of this patent and will not be described in detail. The wiring diagram of the motor in this utility model is common knowledge in the field, and its working principle is already known technology. The appropriate model is selected based on actual use; therefore, the control method and wiring layout of the motor will not be explained in detail.

[0032] Working principle and process: When it is necessary to close the test tube cap, the upper cap 2 is placed on top of the lower cap 3. The locking block 6 at the bottom of the upper cap 2 first pushes the locking rod 37 to rotate around the rotating rod 34. The locking rod 37 compresses the first return spring 33. When the locking block 6 continues to move down, it will contact the lifting adjustment block 32 and compress the second return spring 31, causing the lifting adjustment block 32 to descend a certain distance. After the locking block 6 passes the lifting adjustment block 32, under the action of the second return spring 31, the lifting adjustment block 32 rises and blocks the locking block 6. At the same time, the first return spring 33... Under the action of the latching rod 37, the snap-fit ​​linkage 37 rebounds to help lock the snap-fit ​​block 6, thus achieving a tight lock between the upper bottle cap 2 and the lower bottle cap 3. The annular sealing strip 9 is embedded in the annular groove 8 to enhance the seal. When it is necessary to open the bottle cap, press the push switch 4, and the push plate 38 pushes the snap-fit ​​linkage 37 to rotate, so that the snap-fit ​​linkage 37 disengages from the snap-fit ​​block 6. At the same time, it overcomes the elastic force of the reset spring 31 and causes the lifting adjustment block 32 to descend. At this time, the upper bottle cap 2 can be opened. Throughout the process, the guide groove 35 and the guide block 36 ensure the stable movement of the lifting adjustment block 32.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A test tube cap, comprising a test tube body (1), characterized in that: The outer surface of the test tube body (1) is fixedly fitted with a lower bottle cap (3), and the top of the lower bottle cap (3) is hinged to an upper bottle cap (2). The top of the lower bottle cap (3) is provided with a rectangular groove (7). The inner walls of both sides of the rectangular groove (7) are rotatably connected to a rotating rod (34). The outer surface of the rotating rod (34) is fixedly fitted with a snap-fit ​​connecting rod (37). The bottom end of the snap-fit ​​connecting rod (37) is fixedly connected to two return springs (33). The top ends of the two return springs (33) are fixedly connected to the lower inner wall of the rectangular groove (7).

2. The test tube cap according to claim 1, characterized in that: The lower bottle cap (3) has a circular groove (5) at one end, which is connected to the rectangular groove (7). A push switch (4) is slidably sleeved on the inner surface of the circular groove (5). One end of the push switch (4) passes through the circular groove (5) and is fixedly connected to a push plate (38). One side of the push plate (38) is in contact with one end of the buckle connecting rod (37).

3. A test tube cap according to claim 1, characterized in that: Two reset springs (31) are fixedly connected to one side of the lower inner wall of the rectangular groove (7). The top ends of the two reset springs (31) are fixedly connected to a lifting adjustment block (32). One end of the lifting adjustment block (32) is slidably connected to one side of the inner wall of the rectangular groove (7).

4. A test tube cap according to claim 3, characterized in that: A guide groove (35) is provided on one inner wall of the rectangular groove (7). One end of the lifting adjustment block (32) is fixedly connected to the guide groove (35) used in conjunction with the guide block (36). The cross-section of the guide groove (35) is "convex".

5. A test tube cap according to claim 1, characterized in that: The bottom end of the upper bottle cap (2) is fixedly connected to a snap-fit ​​block (6) that works with the snap-fit ​​rod (37). A soft silicone layer is provided at the contact point between the snap-fit ​​block (6) and the snap-fit ​​rod (37).

6. A test tube cap according to claim 1, characterized in that: The bottom end of the upper bottle cap (2) is fixedly connected with an annular sealing strip (9), and the top end of the lower bottle cap (3) has an annular groove (8). The annular sealing strip (9) is made of high elastic rubber material. The cross-sectional shape of the annular groove (8) and the annular sealing strip (9) is semi-circular. The cross-sectional size of the annular groove (8) is slightly smaller than that of the annular sealing strip (9).

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