Test tube clamping device for test tube cleaning machine
By combining a drive motor, lead screw, vacuum suction cup, and rubber strip into a test tube gripping device, the problem of limited applicability of existing devices is solved. This enables stable gripping of test tubes of different specifications and shapes, reduces costs and management complexity, and improves operational safety and accuracy.
Patent Information
- Application Number
- CN202421554413.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-03
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-07-03
AI Technical Summary
Existing test tube clamping devices are usually designed for a specific size and cannot accommodate test tubes of different sizes and shapes, resulting in the need to purchase multiple devices of different sizes, increasing costs and management complexity.
It adopts a combination structure including a turntable, mounting frame, drive motor, lead screw, slider, electric push rod, vacuum suction cup and rubber strip. Through the cooperation of drive motor and lead screw, and by utilizing the elastic clamping of spring and extrusion block, combined with vacuum adsorption and the friction of rubber strip, it can stably clamp test tubes of different specifications and shapes.
It enables adaptive gripping of test tubes of different sizes and shapes, reduces purchase costs and equipment management complexity, prevents test tubes from slipping and breaking, improves gripping stability and accuracy, and protects test tubes from damage.
Smart Images
Figure CN223491613U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of test tube clamping technology, and in particular to a test tube clamping device for a test tube cleaning machine. Background Technology
[0002] Test tubes are typically cylindrical glass or plastic tubes used in laboratories to contain, mix, react, store, or transport liquid samples. They usually have a sealed bottom to prevent sample leakage, while the top typically has a small open section for easy sampling or adding liquids or other reagents. During test tube cleaning, test tube grippers are used to hold and move the test tubes to a designated position on the cleaning machine. Many existing test tube grippers on the market are generally designed to grip test tubes of specific sizes or dimensions, and their design and manufacturing are primarily geared towards test tubes of specific diameters, lengths, or shapes. These grippers may have fixed jaws or claws, and their size and shape may not be suitable for test tubes of different sizes, thus limiting their applicability and flexibility. Therefore, when laboratories need to use test tubes of different sizes or shapes, users may need to purchase multiple test tube grippers of different sizes, increasing costs and the complexity of equipment management.
[0003] Therefore, we propose a test tube clamping device for a test tube washing machine. Utility Model Content
[0004] The present invention mainly addresses the technical problems existing in the prior art and provides a test tube clamping device for a test tube cleaning machine.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a test tube clamping device for a test tube washing machine, comprising a turntable and a mounting frame. A first drive motor is fixedly connected to the top of the mounting frame, and a lead screw is fixedly connected to the output shaft end of the first drive motor. A first slider and a second slider are slidably connected to the lead screw. A second electric push rod is fixedly connected to the side wall of the second slider. A fixed frame is fixedly connected to the extended end of the second electric push rod. A second drive motor is fixedly connected to the outer wall of the fixed frame. A bidirectional lead screw is fixedly connected to the output shaft end of the second drive motor. A fixed block is provided at the center of the bidirectional lead screw. First mounting blocks are threadedly connected to both sides of the fixed block on the bidirectional lead screw. Clamping blocks are fixedly connected to the side walls of the two first mounting blocks. Compression springs are fixedly connected to the two clamping blocks. Squeezing blocks are fixedly connected to the two compression springs.
[0006] Preferably, a first electric push rod is fixedly connected to the side wall of the first slider, and a negative pressure pump is fixedly connected to the extended end of the first electric push rod. The air outlet of the negative pressure pump is connected to a connecting pipe, and a vacuum suction cup is connected to the bottom of the connecting pipe.
[0007] Preferably, there are two extrusion blocks, and multiple rubber strips are fixedly connected to the opposite sidewalls of the extrusion blocks.
[0008] Preferably, the fixing block is threaded onto the bidirectional lead screw, and the fixing block is fixedly connected to the inner wall of the fixing frame near the side wall of the mounting frame.
[0009] Preferably, the two clamps are set as mirror images of each other.
[0010] Preferably, the fixing frame is a U-shaped structure.
[0011] Beneficial effects
[0012] This invention provides a test tube clamping device for a test tube washing machine. It has the following advantages:
[0013] (1) The test tube clamping device for a test tube cleaning machine is driven by a second drive motor to rotate a bidirectional lead screw and cooperate with two first mounting blocks. Under the elastic action of the compression spring, it cooperates with the squeezing block to clamp the test tube. It can adapt to test tubes of different specifications and shapes, avoids the need to purchase multiple test tube clamping devices of different specifications, and reduces costs and the complexity of equipment management.
[0014] (2) The test tube clamping device for the test tube cleaning machine uses a vacuum suction cup to adsorb the bottom of the test tube, thereby assisting the clamping of the two squeezing blocks and preventing the test tube from slipping and breaking during the clamping process.
[0015] (3) The test tube clamping device for the test tube cleaning machine has rubber strips that can provide additional friction and support to prevent the test tubes from sliding or moving during operation, thereby maintaining the stability and accuracy of the test tube clamping process and better protecting the test tubes and reducing the possibility of damage. Attached Figure Description
[0016] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.
[0017] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.
[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;
[0019] Figure 2 This is a three-dimensional structural schematic diagram of the present utility model;
[0020] Figure 3 This is a schematic diagram showing the details of the fixed frame structure of this utility model.
[0021] Legend:
[0022] 1. Turntable; 2. Mounting frame; 3. First drive motor; 301. Lead screw; 302. First slider; 303. First electric push rod; 304. Second slider; 305. Second electric push rod; 4. Negative pressure pump; 401. Connecting pipe; 402. Vacuum suction cup; 5. Fixing frame; 501. Second drive motor; 502. Bidirectional lead screw; 503. Fixing block; 504. First mounting block; 505. Clamping block; 506. Compression spring; 507. Extrusion block; 6. Rubber strip. Detailed Implementation
[0023] 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.
[0024] Example: A test tube clamping device for a test tube washing machine, such as... Figures 1-3As shown, the device includes a turntable 1 and a mounting frame 2. A first drive motor 3 is fixedly connected to the top of the mounting frame 2. The output shaft of the first drive motor 3 is located in the inner cavity of the mounting frame 2 and is fixedly connected to a lead screw 301. A first slider 302 and a second slider 304 are slidably connected to the lead screw 301. A first electric push rod 303 and a second electric push rod 305 are fixedly connected to the side walls of the first slider 302 and the second slider 304, respectively. A negative pressure pump 4 is fixedly connected to the extended end of the first electric push rod 303. A connecting pipe 401 is connected to the air outlet of the negative pressure pump 4. A vacuum suction cup 402 is connected to the bottom of the connecting pipe 401. A fixed frame 5 is fixedly connected to the extended end of the second electric push rod 305.
[0025] The fixing frame 5 has a U-shaped structure. A second drive motor 501 is fixedly connected to the outer wall of the fixing frame 5. The output shaft of the second drive motor 501 is located in the inner cavity of the fixing frame 5 and is fixedly connected to a bidirectional lead screw 502. A fixing block 503 is threadedly connected to the center of the bidirectional lead screw 502. The fixing block 503 is fixedly connected to the inner wall of the fixing frame 5 near the side wall of the mounting frame 2. First mounting blocks 504 are threadedly connected to both sides of the bidirectional lead screw 502 located on the fixing block 503. The two first mounting blocks 504 are fixedly connected to the side wall away from the mounting frame 2. The device is fixedly connected with clamping blocks 505, which are mirror images of each other. Compression springs 506 are fixedly connected to the center of the inner cavity of the opposite side wall of each clamping block 505. Squeezing blocks 507 are fixedly connected to the opposite ends of each compression spring 506. Multiple rubber strips 6 are fixedly connected to the opposite side wall of each squeezing block 507. The rubber strips 6 provide additional friction and support to prevent the test tube from sliding or moving during operation, thereby maintaining the stability and accuracy of the test tube clamping process and better protecting the test tube from damage.
[0026] The working principle of this utility model:
[0027] In use, the first drive motor 3 is started to drive the first slider 302 and the second slider 304 on the lead screw 301 to adjust their positions. The second drive motor 501 is started to drive the two first mounting blocks 504 on the bidirectional lead screw 502 to move closer to each other. The movement of the two first mounting blocks 504 causes the two clamping blocks 505 to move closer. Under the elastic action of the compression spring 506, they cooperate with the squeezing block 507 to clamp the test tube, making it convenient to clamp test tubes of different sizes.
[0028] When in use, by starting the negative pressure pump 4, the connecting pipe 401 cooperates with the vacuum suction cup 402, and the vacuum suction cup 402 adsorbs the bottom of the test tube, thereby assisting the two squeezing blocks 507 in clamping and preventing the test tube from slipping and breaking during the clamping process.
[0029] When in use, the rubber strip 6 provides additional friction and support to prevent the test tube from sliding or moving during operation, thereby maintaining the stability and accuracy of the test tube clamping process, and also better protecting the test tube and reducing the possibility of damage.
[0030] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A test tube clamping device for a test tube washing machine, comprising a turntable (1) and a mounting frame (2), characterized in that: A first drive motor (3) is fixedly connected to the top of the mounting frame (2). A lead screw (301) is fixedly connected to the output shaft end of the first drive motor (3). A first slider (302) and a second slider (304) are slidably connected to the lead screw (301). A second electric push rod (305) is fixedly connected to the side wall of the second slider (304). A fixed frame (5) is fixedly connected to the protruding end of the second electric push rod (305). A second drive motor (501) is fixedly connected to the outer wall of the fixed frame (5). A bidirectional lead screw (502) is fixedly connected to the output shaft end of the drive motor (501). A fixed block (503) is provided at the center of the bidirectional lead screw (502). First mounting blocks (504) are threadedly connected to both sides of the fixed block (503) on the bidirectional lead screw (502). Clamping blocks (505) are fixedly connected to the side walls of the two first mounting blocks (504). Compression springs (506) are fixedly connected to the two clamping blocks (505). Extrusion blocks (507) are fixedly connected to the two compression springs (506).
2. The test tube clamping device for a test tube washing machine according to claim 1, characterized in that: A first electric push rod (303) is fixedly connected to the side wall of the first slider (302). A negative pressure pump (4) is fixedly connected to the extended end of the first electric push rod (303). A connecting pipe (401) is connected to the air outlet end of the negative pressure pump (4). A vacuum suction cup (402) is connected to the bottom of the connecting pipe (401).
3. The test tube clamping device for a test tube washing machine according to claim 1, characterized in that: The number of extrusion blocks (507) is two, and multiple rubber strips (6) are fixedly connected to the opposite side walls of the extrusion blocks (507).
4. A test tube clamping device for a test tube washing machine according to claim 1, characterized in that: The fixing block (503) is threaded onto the bidirectional lead screw (502), and the fixing block (503) is fixedly connected to the inner wall of the fixing frame (5) near the side wall of the mounting frame (2).
5. A test tube clamping device for a test tube washing machine according to claim 1, characterized in that: The two clamps (505) are mirror images of each other.
6. A test tube clamping device for a test tube washing machine according to claim 1, characterized in that: The fixed frame (5) has a U-shaped structure.