Test tube clamping mechanism and test tube cover opening and closing control system

Abstract

The utility model relates to the technical field of in vitro diagnosis automation equipment, in particular to a test tube clamping mechanism and a test tube cover opening and closing control system. The clamp driving source is in transmission connection with the clamp through a clamping mechanism so as to drive the clamp to clamp or loosen the pipe cover, and drives the pipe cover to rotate through a rotating mechanism so as to tighten or loosen the pipe cover; the clamp driving source is fixed to the clamping moving mechanism, and the clamping moving mechanism is used for driving the clamp to move in the horizontal direction and driving the clamp to ascend and descend in the vertical direction; the pipe cover limiting column is arranged at the rotating center position of the rotating mechanism; in the using process, the tube cover limiting column abuts against the central position of the tube cover, so that the test tube is located at the vertical position of the test tube clamping mechanism. Through cooperation of the mechanisms, the test tubes can be effectively positioned in the processes of lifting, translation, especially cover opening and closing and the like, and therefore it is guaranteed that the test tubes cannot be deviated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of in-vitro diagnosis automation equipment, and particularly relates to a test tube clamping mechanism and a test tube cover opening and closing control system. BACKGROUND

[0002] With the development of sample analysis fields such as biological detection technology, in-vitro diagnosis technology, the processing of samples has gradually become complex. This requires the transfer of individual single or several test tubes and the opening and closing of the caps of the test tubes, and further detection work. For example, during the storage and use of cryopreservation tubes, it is often necessary to transfer and detect the bacteria in the cryopreservation tubes.

[0003] However, the mechanical claw in the prior art can only handle one test tube at a time, cannot realize the opening and closing of multiple test tubes and test tubes of different brands and different capacities, and lacks a positioning structure for positioning the test tube during lifting, translation, and especially opening and closing. The lack of the positioning structure can cause the test tube to shake during transfer, the claw to fail to firmly clamp the test tube, and the test tube to fail to maintain a vertical state during the rotation of the test tube clamping mechanism to realize the opening and closing of the cap, resulting in failure to open and close the cap or even damage to the cap. Therefore, those skilled in the art urgently need a new test tube clamping mechanism that has good compatibility and can effectively position the test tube during lifting, translation, and especially opening and closing, ensure that the test tube always maintains a vertical state, and ensure that the test tube clamping mechanism stably and reliably operates the test tube. SUMMARY

[0004] Therefore, the technical problem to be solved by the utility model is how to solve the lack of a positioning structure for positioning the test tube during lifting, translation, and especially opening and closing in the prior art, which can cause the test tube to be offset relative to the tube clamping mechanism during the operation of the test tube clamping mechanism, resulting in failure to operate or even damage to the test tube. To this end, in one aspect of the utility model, a test tube clamping mechanism is provided, comprising:

[0005] a clamp that clamps or releases the cap of the test tube under the action of a driving force;

[0006] a clamp driving source that is connected to the clamp through a clamping mechanism to drive the clamp to clamp or release the cap and rotate the cap through a rotating mechanism to tighten or loosen the cap;

[0007] a cap limiting column that is arranged at the rotation center of the rotating mechanism and abuts against the center of the cap during use to keep the test tube in a vertical position of the test tube clamping mechanism.

[0008] Optionally, the clamp comprises: oppositely arranged clamp bases, and clamping jaws mounted on the clamp bases and matched with the pipe cover.

[0009] Optionally, the clamping jaws are columnar structures, and at least two columnar structures of the clamping jaws are arranged on each of the clamp bases to match different models of the pipe cover.

[0010] Optionally, the clamping jaws are concave limit blocks matched with the shape of the pipe cover, and at least one concave structure of the clamping jaws is arranged on each of the clamp bases to match different models of the pipe cover.

[0011] Optionally, the pipe cover limit post is provided with an abutting platform protruding outward from the outer periphery of the pipe cover limit post at one end of the pipe cover; in use, the abutting platform abuts against the surface of the pipe cover.

[0012] Optionally, the pipe cover limit post is a cylindrical pin standard part and is detachably connected with the positioning part of the clamp through threads.

[0013] Optionally, the clamp further comprises:

[0014] A clamping moving mechanism, the clamp driving source is fixed on the clamping moving mechanism, and the clamp driving source moves with the clamping moving mechanism in the horizontal direction and moves up and down in the vertical direction.

[0015] Optionally, the clamping mechanism comprises: a guide slide rail, and a driving slide block driven and slidably arranged on the guide slide rail; the driving slide block is two and symmetrically arranged on the two sides of the guide slide rail to move towards or away from each other.

[0016] Optionally, the rotating mechanism comprises: a driving shaft, a connecting support, and a driving part; one end of the driving shaft is in transmission connection with the driving part arranged in the clamp driving source; the other end of the driving shaft is connected with the connecting support to drive the clamp to rotate in the circumferential direction.

[0017] Optionally, the pipe cover limit post is connected with an elastic element, and the pipe cover limit post has a compression state of being closely abutted and connected with the pipe cover and a relaxation state of being away from the pipe cover.

[0018] In the compression state, the pipe cover limit post is closely abutted and connected with the pipe cover, and the elastic element is compressed and applies a compression force towards the pipe cover.

[0019] Optionally, the positioning part is a hollow support provided with an opening towards one side of the pipe cover limit post.

[0020] The pipe cover limiting column is driven to slide through the opening and is arranged in the hollow support, and the compression spring is in abutment with the opening edge of the hollow support.

[0021] Optionally, the elastic element is a compression spring sleeved outside the pipe cover limiting column; two ends of the compression spring are connected with the abutment platform and the positioning part respectively, and the positioning part is used for fixing the pipe cover limiting column.

[0022] Optionally, the elastic element is contained in the positioning part, and two ends of the elastic element are connected with the pipe cover limiting column and the positioning part respectively, and the positioning part is used for fixing the pipe cover limiting column.

[0023] In another aspect of the utility model, a test tube opening and closing cover control system is further provided, which comprises:

[0024] The test tube clamping mechanism described above;

[0025] A test tube containing platform is used for containing the test tube; the test tube clamping mechanism is used for opening and closing cover of the test tube on the test tube containing platform.

[0026] The utility model technical scheme has the following advantages:

[0027] 1. The test tube clamping mechanism provided by the utility model comprises:

[0028] A clamp is used for drivingly clamping or loosening the pipe cover of the test tube;

[0029] A clamp driving source is connected with the clamp through a clamping mechanism and a transmission mechanism, so as to drive the clamp to clamp or loosen the pipe cover and drive the pipe cover to rotate through a rotating mechanism to screw or unscrew the pipe cover;

[0030] A clamping moving mechanism is used for fixing the clamp driving source, and the clamp driving source moves horizontally and rises and falls vertically along with the clamping moving mechanism;

[0031] A pipe cover limiting column is arranged at the rotation center position of the rotating mechanism; in the use process, the pipe cover limiting column is in abutement with the center position of the pipe cover, so that the test tube is in the vertical position of the test tube clamping mechanism.

[0032] In the utility model, in the process that the clamping mechanism drives the clamp to hold or loosen the pipe cover, the rotating mechanism drives the pipe cover to rotate to tighten or loosen the pipe cover, and when the clamping mechanism drives the clamp to hold the pipe cover, the above-mentioned pipe cover limiting post always abuts against the center position of the pipe cover during the movement in the horizontal direction and the vertical direction, can always abut against the center position of the pipe cover when the clamp executes the cover opening, cover closing and clamping movement, thereby limiting the pipe cover through the pipe cover limiting post, and keeping the test tube in the vertical state all the time, facilitating the clamp to complete the cover opening and closing and transfer work of the test tube.

[0033] 2. The utility model provides a test tube clamping mechanism, the clamp includes: opposite arrangement's clamp base, and install on the clamp base with the pipe cover is matched with the clamping jaw.

[0034] In the utility model, through setting up the clamping jaw on the clamp base, through the clamping jaw clamping fixed pipe cover can let the operating personnel adjust the clamping jaw according to the need and adapt to different models of pipe cover, guarantee the clamping effect of clamp.

[0035] 3. The utility model provides a test tube clamping mechanism, the clamping jaw is columnar structure, and at least two columnar structures of the clamping jaw are provided on each clamp base to adapt to different models of the pipe cover.

[0036] In the utility model, the clamping jaw is set to columnar structure, at least two columnar structures of the clamping jaw are set on each clamp base, and the pipe cover is clamped from both sides of the pipe cover, which can effectively adapt to different sizes of pipe cover and improve the application range of the clamping jaw.

[0037] 4. The utility model provides a test tube clamping mechanism, the clamping jaw is the concave limiting block matched with the shape of the pipe cover, and at least one concave structure of the clamping jaw is provided on each clamp base to adapt to different models of the pipe cover.

[0038] In the utility model, the clamping jaw can also be set to the concave limiting block matched with the shape of the pipe cover according to the need, and the connecting surface of the concave limiting block and the pipe cover is larger, which has better limiting and fixing effect on the pipe cover.

[0039] 5. The test tube clamping mechanism provided by the utility model, the tube cover limiting column is provided with an abutting platform which is convex to the outer periphery of the tube cover limiting column at one end of the tube cover; in the use process, the abutting platform abuts against the surface of the tube cover.

[0040] In the utility model, the abutting platform is arranged at the end position of the tube cover limiting column, which can effectively improve the contact surface of the tube cover limiting column and the tube cover, thereby improving the positioning effect of the tube cover.

[0041] 6. The test tube clamping mechanism provided by the utility model, the tube cover limiting column is a cylindrical pin standard part, and is detachably connected with the positioning part of the clamp through threads.

[0042] In the utility model, the tube cover limiting column can also be arranged as a cylindrical pin standard part according to needs, which can be a φ4*30*M3 or φ5*30*M3 cylindrical pin standard part according to needs. The cylindrical pin standard part can be directly connected with the positioning part at the bottom position of the clamp through a thread structure, thereby reducing the number of parts that need to be separately machined for the overall equipment and reducing the production and maintenance cost of the test tube clamping mechanism.

[0043] 7. The test tube clamping mechanism provided by the utility model, the clamping mechanism comprises a guide sliding rail and a driving sliding block which is drivingly and slidably arranged on the guide sliding rail; the driving sliding block is two and symmetrically arranged on the two sides of the guide sliding rail to move towards each other or away from each other.

[0044] In the utility model, the clamping mechanism realizes the clamping and loosening actions of the clamp through the two driving sliding blocks which are slidably arranged on the guide sliding rail. The above structure is simple and reliable, and can effectively drive the clamp base of the clamp to move towards each other or away from each other.

[0045] 8. The test tube clamping mechanism provided by the utility model, the rotating mechanism comprises a driving shaft, a connecting support and a driving part; one end of the driving shaft is drivingly connected with the driving part arranged in the clamp driving source; the other end of the driving shaft is connected with the connecting support to drive the clamp to rotate in the circumferential direction.

[0046] In the utility model, the driving part is arranged in the clamp driving source, which can effectively optimize the structure of the test tube clamping mechanism and realize miniaturization of the equipment.

[0047] 9. The test tube clamping mechanism provided by the utility model, the tube cover limiting column is connected with an elastic element, the tube cover limiting column has a pressing state in which the tube cover is closely connected and abuts against each other, and a relaxation state in which the tube cover is away from each other.

[0048] In the pressing state, the pipe cover limiting column is connected with the pipe cover in close abutment, the elastic element is compressed and exerts a pressing force on the pipe cover.

[0049] In the utility model, the pipe cover limiting column can be in closer contact with the pipe cover through the elastic element, the limiting effect on the pipe cover is improved, the test tube is always kept in a vertical state, and the clamp can conveniently open and close the cover of the test tube and transfer the test tube.

[0050] 10. The test tube clamping mechanism provided by the utility model, the elastic element is a compression spring sleeved outside the pipe cover limiting column; the two ends of the compression spring are connected with the abutment platform and the positioning part respectively, and the positioning part is used for fixing the pipe cover limiting column.

[0051] In the utility model, the elastic element is set as a compression spring sleeved outside the pipe cover limiting column, the pipe cover limiting column is in abutment with the pipe cover and moves towards the positioning part, the spring is compressed to exert a pressing force on the pipe cover, the pipe cover limiting column is in closer contact with the pipe cover, and the limiting effect on the pipe cover is improved. The above structure has the advantages of simple and reliable structure.

[0052] 11. The test tube clamping mechanism provided by the utility model, the positioning part is a hollow support provided with an opening on one side of the pipe cover limiting column; the pipe cover limiting column is slidingly arranged in the hollow support through the opening in a driven mode, and the compression spring is in abutment with the edge of the opening of the hollow support.

[0053] In the utility model, the hollow support can effectively cooperate with the elastic element to realize the telescopic action of the pipe cover limiting column, the pipe cover limiting column is in closer contact with the pipe cover, and the limiting effect on the pipe cover is improved. The elastic element can also be directly accommodated in the hollow structure in the positioning part, so that the compactness of the mechanism is realized.

[0054] 12. The test tube cover opening and closing control system provided by the utility model, comprising: a test tube clamping mechanism; and a test tube containing platform, the test tube containing platform is used for containing the test tube; and the test tube clamping mechanism performs cover opening and closing operation on the test tube on the test tube containing platform. Therefore, the test tube cover opening and closing control system has all the advantages of the test tube clamping mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0055] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the drawings needed in the specific embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0056] Figure 1 The utility model provides a test tube clamping mechanism clamps the state schematic drawing of fixed test tube;

[0057] Figure 2 The utility model provides a test tube clamping mechanism its fixture part's stereoscopic structure amplification schematic drawing;

[0058] Figure 3 The utility model provides a test tube clamping mechanism its clamping mechanism is driven and moves towards and clamps the state schematic drawing of test tube;

[0059] Figure 4 The utility model provides a test tube clamping mechanism clamps the schematic drawing of test tube containing platform;

[0060] Figure 5 The utility model provides a pipe cover limiting post is the fixture stereoscopic structure schematic drawing of cylindrical pin standard spare;

[0061] Figure 6 The utility model provides a fixture stereoscopic structure schematic drawing with elastic element;

[0062] Figure 7 The utility model provides a fixture stereoscopic structure schematic drawing of clamping jaw is the concave limiting block structure.

[0063] Mark explanation:

[0064] 1-clamp;2-test tube;3-pipe cover;4-clamp drive source;5-clamping mechanism;6-rotary mechanism;7-pipe cover limiting post;8-clamp base;9-clamping jaw;10-abutment platform;11-guiding slide rail;12-driving sliding block;13-driving shaft;14-connection support;15-elastic element;16-positioning portion;17-test tube containing platform. Specific implementation

[0065] The technical scheme of the utility model will be described clearly and completely below in combination with the drawings, obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the range of protection of the utility model.

[0066] In the description of the utility model, it is necessary to explain that the orientation or position relation indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is the orientation or position relation based on the orientation or position relation shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0067] Embodiment 1

[0068] Referring to Figures 1 to 3 As shown in the figure, Figure 1 A state diagram showing that the test tube clamping mechanism in the embodiment of the utility model clamps and fixes the test tube is shown. Figure 2 A state diagram showing that the test tube clamping mechanism in the embodiment of the utility model clamps and fixes the test tube is shown. Figure 3 A state diagram showing that the test tube clamping mechanism in the embodiment of the utility model clamps and fixes the test tube is shown.

[0069] The test tube clamping mechanism provided in the embodiment comprises:

[0070] The clamp 1 is driven to clamp or loosen the cap 3 of the test tube 2; in the embodiment, the clamp 1 comprises: oppositely arranged clamp bases 8, and clamp jaws 9 mounted on the clamp bases 8 and matched with the cap 3. In an alternative embodiment, the clamp base 8 can also be used to clamp the above-mentioned cap 3 directly, for example, the clamp base 8 can be made of flexible material, or recesses or other structures can be arranged thereon to match different models of the cap 3 and improve the stability of clamping.

[0071] The clamp driving source 4 is connected in transmission with the clamp 1 through the clamping mechanism 5 to drive the clamp 1 to clamp or loosen the cap 3, and the cap 3 is driven to rotate by the rotating mechanism 6 to tighten or loosen the cap 3; specifically, the clamp 1 is driven to clamp or loosen the cap 3 by means of electric control, and the cap 3 is driven to rotate by the rotating mechanism 6 to tighten or loosen the cap 3 by means of electric control.

[0072] Further, the test tube clamping mechanism further comprises a cap limiting column 7 arranged at the rotation center position of the rotating mechanism 6; in the use process, the cap limiting column 7 abuts against the center position of the cap 3 to make the test tube 2 in the vertical position of the test tube clamping mechanism.

[0073] Specifically, when the clamp 1 performs the opening and closing of the cap, the clamping movement on the test tube 2, the cap limiting column 7 is always in contact with the center position of the cap 3, thereby limiting the cap 3 through the cap limiting column 7, and the test tube 2 is always kept in a vertical state, facilitating the clamp 1 to complete the opening and closing of the test tube 2 and the transfer work.

[0074] In the embodiment, referring to Figure 3 and Figure 4 shown, Figure 3 a schematic diagram of the test tube clamping mechanism in the embodiment of the utility model is shown, and the clamping mechanism is driven to move towards each other to clamp the test tube. Figure 4 A schematic diagram of the clamping of the test tube clamping mechanism clamping platform is shown.

[0075] The clamping jaw 9 is a columnar structure, and two columnar structures of the clamping jaw 9 are arranged on each clamping base 8 to adapt to different models of the cap 3.

[0076] Further, the clamping jaw 9 is arranged as a columnar structure, at least two columnar structures of the clamping jaw 9 are arranged on each clamping base 8, and the cap 3 is clamped from two sides of the cap 3, which can effectively adapt to different sizes of the cap 3 and improve the application range of the clamping jaw 9.

[0077] For example, three columnar structures of the clamping jaw 9 can also be arranged on each clamping base 8 to adapt to different models of the cap 3.

[0078] In another embodiment, as shown in Figure 7 the clamping jaw is a concave limiting block structure, and a schematic diagram of the three-dimensional structure of the clamp is shown. The clamping jaw 9 is a concave limiting block matched with the shape of the cap 3, and at least one concave structure of the clamping jaw 9 is arranged on each clamping base 8 to adapt to different models of the cap 3.

[0079] In the embodiment, referring to Figure 2 a schematic diagram of the three-dimensional structure of the clamp part of the test tube clamping mechanism is shown. The cap limiting column 7 is provided with an abutting platform 10 protruding outward from the outer periphery of the cap limiting column 7 at one end of the cap limiting column 7; in the use process, the abutting platform 10 is in abutment with the surface of the cap 3.

[0080] Further, the pipe cover limiting column 7 is connected with the elastic element 15, the pipe cover limiting column 7 has a compression state of being closely connected with the pipe cover 3 in abutment, and a relaxation state of being away from the pipe cover 3; in the compression state, the pipe cover limiting column 7 is closely connected with the pipe cover 3 in abutment, the elastic element 15 is compressed and exerts a compression force on the pipe cover 3. In another optional embodiment, the abutment platform 10 on the pipe cover limiting column 7 can be omitted, and the end of the elastic element 15 is directly fixed at the head end position of the pipe cover limiting column 7, and the pipe cover 3 is directly contacted by the elastic element 15.

[0081] In addition, as shown in Figure 6 The positioning part 16 is a hollow support provided with an opening on the side facing the pipe cover limiting column 7, that is, the positioning part 16 is a block structure, for example, a cylinder, a cuboid, etc., which has a hollow space to accommodate or partially accommodate the pipe cover limiting column 7 and the elastic element 15, and the hollow space is communicated with the outside through the opening, the pipe cover limiting column 7 and / or the elastic element 15 passes through the opening, and the pipe cover limiting column 7 is driven to slide in the positioning part 16 through the opening to limit the extension and retraction action of the pipe cover limiting column 7 and ensure the stability of the sliding action. The compression spring is in abutment with the edge of the opening of the positioning part 16 on the side facing the positioning part 16, and is in abutment with the abutment platform 10 on the side facing the abutment platform 10. The opening of the positioning part 16 is used to ensure the stability of the pipe cover limiting column 7 when abutting against the pipe cover 3.

[0082] In a specific embodiment, the elastic element 15 is a compression spring sleeved on the outer side of the pipe cover limiting column 7; the two ends of the compression spring are connected with the abutment platform 10 and the positioning part 16 respectively, and the positioning part 16 is used to fix the pipe cover limiting column 7. The abutment platform 10 can not only increase the contact surface of the pipe cover limiting column 7 and the pipe cover 3, thereby improving the positioning effect of the pipe cover 3, but also effectively limits and fixes the compression spring to realize the compression action of the compression spring.

[0083] In another specific embodiment, as shown in Figure 3 The elastic element 15 is accommodated in the positioning part 16, and the two ends of the elastic element 15 are connected with the pipe cover limiting column 7 and the positioning part 16 respectively, and the positioning part 16 is used to fix the pipe cover limiting column 7. Specifically, the elastic element 15 includes elastic members such as springs and rubbers, which are accommodated in the hollow structure inside the positioning part 16, the abutment platform 10 and the positioning part 16 are connected through the elastic element 15, and when the pipe cover limiting column 7 abuts against the pipe cover 3, the elastic element 15 is contracted and generates a rebound force on the pipe cover limiting column 7.

[0084] Specifically, the test tube clamping mechanism first moves to the upper side of the test tube 2 to be opened, and the cap limiting column 7 is aligned with the center of the cap 3 of the test tube 2, then it is lowered and the cap limiting column 7 is abutted to the cap 3. At this time, the test tube clamping mechanism continues to descend and compresses the elastic element 15, so that the elastic element 15 generates a resilient force and acts on the abutted cap 3, that is, the elastic element 15 exerts pressure on the cap 3 through the abutment platform 10. At this time, the cap 3 is in a horizontal state, the pressure exerted by the elastic element 15 on the cap 3 makes the cap limiting column 7 limit and keep the cap 3 in a horizontal state, and the pressure generated by the elastic element 15 also keeps the test tube 2 in a vertical state at all times, finally realizing the effect of facilitating the test tube clamping mechanism to complete the opening and closing of the cap of the test tube 2 and the transfer work.

[0085] Further, as shown in Figure 5 The cap limiting column 7 is a cylindrical pin standard part, which is detachably connected with the positioning part 16 of the clamp 1 through threads. The cylindrical pin standard part can be φ4*30*M3 or φ5*30*M3 cylindrical pin standard part according to needs. The cylindrical pin standard part can be directly connected with the positioning part 16 at the bottom of the clamp 1 through threads, thereby reducing the number of parts that need to be separately processed for the overall equipment and reducing the production and maintenance cost of the test tube clamping mechanism.

[0086] In a preferred embodiment, the test tube clamping mechanism further comprises a clamping moving mechanism, the clamp driving source 4 is connected with the clamp 1 in cooperation, the clamp 1 moves in the horizontal direction and rises and falls in the vertical direction with the clamping moving mechanism. It can be understood that the clamping moving mechanism can be a motor, an electric push rod, a rack and other known technologies, in general, as long as it can make the clamp 1 move in translation, rise and fall, etc., any existing technical means can be used. In addition, the clamp driving source 4 is connected with the clamp 1 in transmission through the clamping mechanism 5 to drive the clamp 1 to clamp or loosen the cap 3 through motor driving, and the rotating mechanism 6 drives the cap 3 to rotate to tighten or loosen the cap 3 through motor driving.

[0087] Further, as shown in Figure 3 The clamping mechanism 5 comprises a guide rail 11 and a driven sliding block 12 arranged on the guide rail 11 in a driven manner, the two symmetrically arranged driven sliding blocks 12 move towards or away from each other on the two sides of the guide rail 11, thereby realizing the clamping and loosening of the cap 3 by the clamp 1. It can be understood that the driving source of the clamping mechanism 5 can be a motor, an electric push rod and other known technologies, which can be directly connected with the driven sliding block 12, or the power can be transmitted to the driven sliding block 12 through a rack and other components, in general, as long as the relatively arranged driven sliding blocks 12 can move relatively, any existing technical means can be used.

[0088] Further, as shown in Figure 6 The rotating mechanism 6 comprises a driving shaft 13, a connecting support 14, and a driving part; one end of the driving shaft 13 is connected with the driving part arranged in the clamp driving source 4 in transmission; the other end of the driving shaft 13 is connected with the connecting support 14 to drive the clamp 1 to rotate along the circumference thereof, thereby realizing the work of screwing or unscrewing the cap 3 on the test tube 2 so as to take away the cap 3 by the clamp jaw 9.

[0089] In another embodiment, the rotating mechanism 6 comprises a driving shaft 13 and a driving part; one end of the driving shaft 13 is connected with the driving part arranged in the clamp driving source 4 in transmission; the other end of the driving shaft 13 is directly fixedly connected with the clamp 1 to drive the clamp 1 to rotate along the circumference thereof.

[0090] Embodiment 2

[0091] A test tube cap opening and closing control system comprises the test tube clamping mechanism in Embodiment 1 and a test tube containing platform 17 for containing the test tube 2; the test tube clamping mechanism performs the cap opening and closing operation on the test tube 2 on the test tube containing platform 17.

[0092] Obviously, the above embodiments are only examples for clearly illustrating but not limiting the embodiments. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, it is not necessary and also impossible to enumerate all the embodiments. The changes or variations derived therefrom are still within the protection scope of the utility model.

Claims

1. A test tube clamping mechanism, characterized in that, include: The clamp (1) is driven to clamp or release the cap (3) of the test tube (2); The clamp drive source (4) is connected to the clamp (1) via the clamping mechanism (5) to drive the clamp (1) to clamp or release the pipe cap (3) and to drive the pipe cap (3) to rotate via the rotating mechanism (6) to tighten or loosen the pipe cap (3); The cap limiting post (7) is located at the rotation center of the rotating mechanism (6); during use, the cap limiting post (7) abuts against the center of the cap (3) so that the test tube (2) is in the vertical position of the test tube clamping mechanism.

2. The test tube clamping mechanism according to claim 1, characterized in that, The clamp (1) includes: a clamp base (8) disposed opposite to the clamp base (8), and a clamp (9) mounted on the clamp base (8) and adapted to the tube cap (3).

3. The test tube clamping mechanism according to claim 2, characterized in that, The gripper (9) is a columnar structure, and each clamp base (8) is provided with at least two columnar grippers (9) to adapt to different models of the pipe cap (3).

4. The test tube clamping mechanism according to claim 2, characterized in that, The gripper (9) is a concave limiting block adapted to the shape of the tube cap (3). Each clamp base (8) is provided with at least one gripper (9) with a concave structure to adapt to different models of tube caps (3).

5. The test tube clamping mechanism according to claim 1, characterized in that, The end of the pipe cap limiting post (7) facing the pipe cap (3) is provided with an abutting platform (10) that protrudes outward from the outer periphery of the pipe cap limiting post (7); during use, the abutting platform (10) abuts against the surface of the pipe cap (3).

6. The test tube clamping mechanism according to claim 1, characterized in that, The cap limiting post (7) is a standard cylindrical pin, which is detachably connected to the positioning part (16) of the clamp (1) by means of threads.

7. The test tube clamping mechanism according to any one of claims 1 to 6, characterized in that, Also includes: The clamping and moving mechanism is fixed with the clamping and moving mechanism. The clamping and moving mechanism moves horizontally and moves vertically.

8. The test tube clamping mechanism according to any one of claims 1 to 6, characterized in that, The clamping mechanism (5) includes: a guide slide rail (11) and a drive slider (12) slidably disposed on the guide slide rail (11); the drive slider (12) consists of two sliders symmetrically disposed on both sides of the guide slide rail (11) and moves towards or away from each other.

9. The test tube clamping mechanism according to any one of claims 1 to 6, characterized in that, The rotating mechanism (6) includes a drive shaft (13), a connecting support (14), and a drive unit; one end of the drive shaft (13) is connected to the drive unit disposed in the clamp drive source (4); the other end of the drive shaft (13) is connected to the connecting support (14) to drive the clamp (1) to rotate circumferentially.

10. The test tube clamping mechanism according to claim 6, characterized in that, The cap limiting post (7) is connected to the elastic element (15). The cap limiting post (7) has a pressed state that is tightly connected to the cap (3) and a relaxed state that is far away from the cap (3). In the compressed state, the cap limiting post (7) is tightly connected to the cap (3), and the elastic element (15) is compressed and applies a clamping force toward the cap (3).

11. The test tube clamping mechanism according to claim 10, characterized in that, The positioning part (16) is a hollow support with an opening on the side facing the pipe cap limiting post (7); The cap limiting post (7) is driven to pass through the opening and is slidably disposed in the hollow support, and the compression spring abuts against the edge of the opening of the hollow support.

12. The test tube clamping mechanism according to claim 11, characterized in that, The elastic element (15) is a compression spring sleeved on the outside of the cap limiting post (7); the two ends of the compression spring are respectively connected to the abutment platform (10) and the positioning part (16), and the positioning part (16) is used to fix the cap limiting post (7).

13. The test tube clamping mechanism according to claim 11, characterized in that, The elastic element (15) is housed inside the positioning part (16), and both ends of the elastic element (15) are connected to the cap limiting post (7) and the positioning part (16) respectively. The positioning part (16) is used to fix the cap limiting post (7).

14. A test tube cap control system, characterized in that, include: The test tube clamping mechanism according to any one of claims 1 to 13; as well as, Test tube holding platform (17) is used to hold the test tube (2); the test tube clamping mechanism performs opening and closing operation on the test tube (2) on the test tube holding platform (17).

Images