Detection frame for laboratory detection

Abstract

The invention discloses a detection rack for laboratory detection, and belongs to the field of laboratory instruments, the detection rack comprises a rotating base, a supporting frame with height adjusted in the vertical direction is arranged above the rotating base, the supporting frame is of a rectangular frame structure, and test tubes are arranged in the length direction of the supporting frame; a pair of clamping assemblies for independently clamping the test tubes is arranged on the supporting frame corresponding to each test tube, and the pair of clamping assemblies oppositely clamp the test tubes from the two sides of the test tubes and can adjust the clamping force on the test tubes. The test tubes with different diameters and sizes are clamped through the independent clamping assemblies without mutual influence, so that the test tubes with different sizes and sizes can be clamped and fixed by the detection frame, multiple groups of experimental detection can be carried out, and the application range of the detection frame is widened. The threaded sleeve in the clamping assembly can move in the axial direction, the length of the smooth guide section extending into the supporting frame is changed, and the pressure of the compression spring on the test tube can be changed by adjusting the length.

Description

Technical Field

[0001] The invention belongs to the field of laboratory equipment, in particular to a detection rack for laboratory detection. Background Art

[0002] At present, there are many building materials merchants in my country. Some merchants, in pursuit of profit, have problems such as uneven quality and large differences in performance characteristics. In view of this, the quality of materials purchased for engineering projects must be strictly controlled. The inspection department should conduct testing experiments on building materials and conduct effective analysis on the results of the testing experiments. By adding testing reagents to building materials, the materials react in test tubes, and the quality of the materials is judged based on the experimental results.

[0003] Chinese patent CN219334306U discloses a test tube rack for laboratory testing, comprising a bottom plate, wherein the left and right ends of the top of the bottom plate are respectively fixedly connected with stabilizing support rods, the bottom of the bottom plate is fixedly connected with an adjustment mechanism, the top of the adjustment mechanism is movably connected with two groups of top frames through a pin seat, and the two groups of top frames are respectively located at one end of the two groups of stabilizing support rods, two groups of clamping plates are arranged on opposite sides of the two groups of top frames, seven groups of experimental tubes are plugged into opposite sides of the two groups of clamping plates, and the top of the top frame is fixedly connected with a relaxation mechanism. By rotating the connecting shaft in the adjusting mechanism at the bottom of the base plate, the bevel gear groups at the left and right ends are driven to rotate, thereby driving the two sets of threaded rods to rotate, and the threaded connection directions between the transmission seat and the threaded rod are opposite, and under the limited sliding effect of the sliding seat and the base plate, the two sets of sliding seats are realized. The opposite movement effect, driving the top telescopic frame to expand and retract, and under the side support of the stable support rod, the height position of the two sets of top frames is changed. When the experimental tube needs to be taken, the two sets of push rods in the relaxation mechanism are toggled, and the two sets of push rods slide towards each other on the inner side of the limit sleeve, driving the wedge block to move downward. At this time, the wedge block resists the two sets of clamping plates. Under the activity of the connecting rod, the two sets of clamping plates are driven to open towards each other, which is convenient for taking the experimental tube. After releasing the push rod, under the elastic action of the torsion spring, the clamping plate is driven to reset to fix the experimental tube.

[0004] Although the above-mentioned test tube rack for detection can clamp the test tube by two sets of clamping plates, the multiple test tubes clamped therein are usually of the same diameter and cannot adapt to test tubes of different sizes. When test tubes with different weights of reagents added into the test tubes, the clamping strength of the test tubes cannot be adjusted, and the clamping stability cannot be guaranteed, which is not conducive to the use of all types of test tubes in the laboratory. Therefore, it is necessary to improve the existing detection rack. Summary of the invention

[0005] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] A test stand for laboratory testing includes a rotating base, a support frame with adjustable height in the vertical direction is arranged above the rotating base, the support frame is a rectangular frame structure, test tubes are arranged and placed along the length direction of the support frame, and a pair of clamping components for independently clamping the test tube are arranged on the support frame corresponding to each test tube. The pair of clamping components clamp the test tube relatively from two sides and the clamping force of the test tube can be adjusted.

[0008] Preferably, the clamping assembly includes a smooth guide section and a threaded section that are coaxially integrated. The smooth guide section is slidably connected to a guide hole opened on the side wall of the support frame. Clamping heads are provided on the opposite ends of the smooth guide sections on both sides, and an adjustment handle is fixed on the end of the threaded section that extends out of the support frame; a threaded sleeve is connected to the outer thread of the threaded section, and a compression spring is provided on the side of the threaded sleeve facing the support frame, and the other end of the compression spring is fixedly connected to the support frame.

[0009] Preferably, the distance between the clamping heads on both sides is the smallest when the clamping spring is in a natural state, and rotating the threaded sleeve can adjust the distance between the clamping heads on both sides of the clamping spring in the natural state, thereby changing the clamping force of the clamping heads on both sides on the test tube.

[0010] Preferably, a sliding bar along the axial direction is fixed on the side wall of the smooth guide section, the sliding bar is arranged in a long strip shape, a sliding groove is arranged on the side wall of the guide hole corresponding to the sliding bar, and the sliding bar slides in the sliding groove.

[0011] Preferably, the support frame and the rotating base are connected by a lifting and adjusting mechanism, which is located at both ends of the support frame. The lifting and adjusting mechanism includes two vertical lifting slide rails, the lower ends of the lifting slide rails are fixed on the rotating base, and the upper ends are fixedly connected through the top plate, and the ends of the support frame are slidably connected to the lifting slide rails; it also includes a vertical lifting screw rod, the upper end of the lifting screw rod is rotatably connected to the top plate, and the lower end is rotatably connected to the rotating base through a bearing, and connecting seats are provided at the positions of the top plates at both ends of the support frame, and the lifting screw rod threads pass through the connecting seat, and the lifting screw rod rotates to adjust the height position of the connecting seat, thereby changing the height of the support frame.

[0012] Preferably, a bottom assembly is provided on the corresponding rotating base directly below each test tube, and the bottom assembly includes a fixed pad fixed on the upper surface of the rotating base and a plurality of splicing pads stacked vertically upward, and the number of splicing pads is adjusted according to the distance between the bottom end of the test tube and the rotating base.

[0013] Preferably, two symmetrical connecting sliders are fixed on the top of the splicing pad and the fixed pad, the connecting slider is in the shape of an elongated strip, the bottom of the test tube is located between the two connecting sliders, and the side of the connecting slider facing the test tube is set as an arc-shaped surface; a connecting groove is provided at the bottom of the splicing pad, and corresponding to the setting of the connecting slider, the connecting slider can be slidably inserted into the connecting groove so that multiple splicing pads can be stacked together; the surface of the connecting slider and the inner wall of the connecting groove are covered with a rubber layer.

[0014] Preferably, a buffer groove located between two connecting sliders is opened on the top of the splicing pad and the fixed pad, and a flexible pad is filled in the buffer groove. The flexible pad is a flexible material that can be compressed into the buffer groove, and the upper surface of the flexible pad is 0.1-0.5mm higher than the upper end of the buffer groove.

[0015] Preferably, a parallel fixed base is provided below the rotating base, and the fixed base and the rotating base are rotatably connected via a vertical rotating component. An arc-shaped guide groove is provided on the upper surface of the fixed base, and the central axis of the guide groove coincides with the central axis of the rotating component. A sliding column extending into the guide groove is fixed on the rotating base, and the sliding column slides along the guide groove. Reset elastic bands that can provide elastic force in the horizontal direction are fixed on both sides of the sliding column, and the reset elastic bands on both sides are at a natural length when the sliding column is located at the midpoint of the guide groove.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) The present invention clamps test tubes of different diameters through independent clamping components without affecting each other, so that the detection frame can clamp and fix test tubes of different volumes, and multiple groups of experimental tests can be performed, thereby improving the application range of the detection frame.

[0018] (2) The threaded sleeve in the clamping assembly can move in the axial direction to change the length of the smooth guide section extending into the support frame. The pressure of the compression spring on the test tube can be changed by adjusting the length, so that test tubes of different hardness and types can be clamped and fixed, which is particularly suitable for test tubes made of rubber and plastic.

[0019] (3) A bottom pad assembly can be placed under each test tube. The number of splicing pads of the bottom pad assembly can be changed according to the length of the test tube. The bottom of test tubes of various lengths can be supported to ensure that the test tubes are stably placed on the test rack and avoid falling off from the clamping assembly.

[0020] (4) The test tube is placed on the detection rack, and the rotating base rotates around the center, which can drive the test tube to move back and forth, causing the reagent in the test tube to shake, thereby improving the rapid mixing of the detection reagent and providing convenience for experimental detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of a test frame for laboratory testing;

[0022] Figure 2 It is a schematic diagram of the structure of the test frame for laboratory testing after the clamping components are separated;

[0023] Figure 3 It is a schematic diagram of the structure of the clamping assembly in the test frame for laboratory testing;

[0024] Figure 4 It is a schematic diagram of the structure of the rotating base in the test frame for laboratory testing;

[0025] Figure 5 This is a schematic diagram of the installation structure of the bottom pad assembly in the test rack for laboratory testing;

[0026] Figure 6 This is a schematic diagram of the structure of the splicing pads and the fixed pads in the test frame for laboratory testing;

[0027] Figure 7 Schematic diagram of the installation structure of the flexible pad in the test frame for laboratory testing.

[0028] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0029] 100, fixed base; 200, rotating base; 300, lifting slide rail; 400, top plate; 500, lifting screw rod; 600, connecting seat; 700, supporting frame; 710, guide hole; 800, clamping assembly; 810, smooth guide section; 820, slide bar; 830, threaded section; 840, threaded sleeve; 850, adjusting handle; 860, clamping head; 870, clamping spring; 900, bottom pad assembly; 910, splicing pad; 920, fixed pad; 930, connecting slider; 940, connecting slide groove; 950, flexible pad; 960, buffer groove; 110, guide groove; 120, sliding column; 130, reset elastic band; 140, rotating part. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0031] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0032] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments. The present invention provides the following embodiments.

[0033] like Figure 1 The test stand for laboratory testing shown in the figure comprises a fixed base 100 and a rotating base 200, the rotating base 200 is arranged above the fixed base 100 in parallel, the fixed base 100 and the rotating base 200 are rotatably connected via a vertical rotating component 140, so that the rotating base 200 rotates around the rotating component 140, the rotating component 140 can be a rotating shaft, so that the rotating base 200 can move in the horizontal direction, an arc-shaped guide groove 110 is opened on the upper surface of the fixed base 100, the central axis of the guide groove 110 coincides with the central axis of the rotating component 140, and a sliding column 120 extending into the guide groove 110 is fixed on the rotating base 200, and the sliding column 120 extends into the guide groove 110. The moving column 120 slides along the guide groove 110, so that the rotating base 200 only rotates around the rotating component 140, ensuring that the moving trajectory is on the circumference. Reset elastic bands 130 that can provide elastic force in the horizontal direction are fixed on both sides of the sliding column 120, and when the sliding column 120 is located at the midpoint of the guide groove 110, the reset elastic bands 130 on both sides are at a natural length. The rotating base 200 moves, so that the reset elastic band 130 on one side is pulled to generate a restoring force. After the rotating base 200 is pushed, it can return to the initial position, so that the rotating base 200 can reciprocate in the horizontal direction, which has a shaking and mixing effect on the medicine in the test tube.

[0034] A support frame 700 for adjusting the height in the vertical direction is arranged above the rotating base 200. The support frame 700 is a rectangular frame structure. The support frame 700 and the rotating base 200 are connected by a lifting adjustment mechanism. The lifting adjustment mechanism is located at both ends of the support frame 700. The lifting adjustment mechanism includes two vertical lifting rails 300. The lower end of the lifting rail 300 is fixed on the rotating base 200, and the upper end is fixedly connected through the top plate 400. The end of the support frame 700 is slidably connected with the lifting rail 300, so that the support The support frame 700 only moves in the vertical direction to adjust the height of the support frame 700, and also includes a vertical lifting screw rod 500. The upper end of the lifting screw rod 500 is rotatably connected to the top plate 400, and the lower end is rotatably connected to the rotating base 200 through a bearing. Connecting seats 600 are provided at the positions of the top plate 400 corresponding to the two ends of the support frame 700. The lifting screw rod 500 is threaded through the connecting seat 600. The lifting screw rod 500 rotates to adjust the position of the connecting seat 600 in the vertical direction, thereby changing the height of the support frame 700.

[0035] A plurality of clamping assemblies 800 are arranged in the support frame 700, and every two clamping assemblies 800 are arranged relatively to each other and clamp and fix the test tube from both sides through action. The clamping force on the test tube can be changed by adjusting the two clamping assemblies 800. Specifically, the clamping assembly 800 includes a smooth guide section 810 and a threaded section 830 which are coaxially and integrally arranged. The smooth guide section 810 is slidably connected in the guide hole 710 provided on the side wall of the support frame 700, so that the rod-shaped smooth guide section 810 moves upward along the axis. Clamping heads 860 are provided on the opposite ends of the smooth guide sections 810 on both sides. The clamping heads 860 on both sides are close to each other to clamp and fix the test tube therebetween. An adjusting handle 850 is fixed on one end of the threaded section 830 extending out of the support frame 700; the threaded section 830 will not enter the guide hole 710, and the threaded section 830 is arranged on the outside of the support frame 700 along the axis. Move upward, the outer thread sleeve of the threaded section 830 is connected with a threaded sleeve 840, and a compression spring 870 is provided on the side of the threaded sleeve 840 facing the support frame 700, and the other end of the compression spring 870 is fixedly connected to the support frame 700. The compression spring 870 generates a pulling force into the support frame 700 on the threaded sleeve 840, thereby generating an extrusion force on the test tube placed inside. When the compression spring 870 is in a natural state, the distance between the compression heads 860 on both sides is the smallest. Rotating the threaded sleeve 840 can adjust the distance between the compression heads 860 on both sides of the compression spring 870 in the natural state, thereby changing the clamping force of the compression heads 860 on the test tube on both sides. In order to facilitate the rotation of the threaded sleeve 840, the threaded sleeve 840 and the compression spring 870 are rotatably connected. Rotating the threaded sleeve 840 prevents the compression spring 870 from twisting, thereby ensuring that the structure of the compression spring 870 will not be deformed.

[0036] A sliding bar 820 is fixed along the axial direction on the side wall of the smooth guide section 810. The sliding bar 820 is set in a long strip shape. A sliding groove is opened on the side wall of the guide hole 710 corresponding to the sliding bar 820. The sliding bar 820 slides in the sliding groove, so that the smooth guide section 810 only moves in the axial direction to prevent the smooth guide section 810 from rotating.

[0037] A bottom pad assembly 900 is provided directly below the position where each test tube is clamped, which is used to support the bottom of the test tube. The bottom pad assembly 900 can adjust its height adaptively according to the length of the test tube to support test tubes of different lengths. Specifically, the bottom pad assembly 900 includes a fixed pad block 920 that can be fixed on the upper surface of the rotating base 200 and a plurality of splicing pad blocks 910 stacked vertically upward. The fixed pad block 920 is detachably fixed on the rotating base 200 to keep the test tube placed on it stable and avoid sliding. A corresponding number of splicing pad blocks 910 can be selected according to the distance between the bottom end of the test tube and the rotating base 200. The corresponding connection structure is as follows: two symmetrical splicing pad blocks 910 and the tops of the fixed pad blocks 920 are fixed. There is a connecting slider 930, which is in the shape of a long strip. The bottom of the test tube can be placed between the two connecting sliders 930, and the side of the connecting slider 930 facing the test tube is set as an arc surface. The connecting groove 940 is opened at the bottom of the splicing pad 910, and corresponding to the setting of the connecting slider 930, the connecting slider 930 can be slidably inserted into the connecting groove 940 to stack multiple splicing pads 910 together so that two adjacent splicing pads 910 are connected together to avoid falling off. In order to make the connecting slider 930 and the connecting groove 940 more tightly connected, the surface of the connecting slider 930 and the inner wall of the connecting groove 940 are covered with a rubber layer to increase the friction between each other and make it difficult to fall off after installation.

[0038] A buffer groove 960 located between the two connecting sliders 930 is provided on the top of the splicing pad 910 and the fixed pad 920. The buffer groove 960 is filled with a flexible pad 950. The flexible pad 950 is a flexible material that can be compressed into the buffer groove 960. The upper surface of the flexible pad 950 is 0.1-0.5mm higher than the upper end of the buffer groove 960. The test tube can contact the flexible pad 950 to improve the support effect on the bottom of the test tube and prevent the test tube from sliding. At the same time, when the splicing pad 910 is performed, the flexible pad 950 is squeezed and compressed into the buffer groove 960, which can increase the pressure between adjacent splicing pads 910 and improve the stability of the splicing pad 910 after installation.

[0039] When the detection rack is in use, different test tubes are placed in two different clamping assemblies 800 for clamping. The clamping assembly 800 can clamp test tubes of different diameters at the same time, and the pressure of the clamping spring 870 can be adjusted by rotating the threaded sleeve 840. The pressure of the clamping head 860 on the same test tube can be adjusted, and it can be used for test tubes of different materials and hardness to ensure that test tubes of various types can be clamped; the bottom assembly 900 arranged at the bottom can support multiple test tubes of different sizes, and the bottom assembly 900 is used to support them when the lifting and lowering adjustment mechanism cannot be adjusted, and the bottom assembly 900 is flexible and diverse in adjustment to adapt to the use of test tubes of various lengths; the test tubes on the detection rack can move back and forth in the horizontal direction following the rotating base 200, driving the internal medicine to shake, thereby achieving a shaking effect.

[0040] The above content is a further detailed description of the present invention in combination with specific implementation methods. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as belonging to the scope of protection determined by the claims submitted for the present invention.

Claims

1. A test stand for laboratory testing, comprising a rotating base (200), a support frame (700) for adjusting the height in the vertical direction is arranged above the rotating base (200), the support frame (700) is a rectangular frame structure, and test tubes are arranged and placed along the length direction of the support frame (700), characterized in that: A pair of clamping assemblies (800) for independently clamping the test tube is arranged on the support frame (700) corresponding to each test tube. The pair of clamping assemblies (800) clamp the test tube from both sides and the clamping force of the test tube can be adjusted.

2. The detection rack for laboratory testing according to claim 1, characterized in that: The clamping assembly (800) includes a smooth guide section (810) and a threaded section (830) which are coaxially arranged in an integral manner. The smooth guide section (810) is slidably connected in a guide hole (710) provided on a side wall of the support frame (700). A clamping head (860) is provided on opposite ends of the smooth guide sections (810) on both sides. An adjustment handle (850) is fixed to one end of the threaded section (830) extending out of the support frame (700). A threaded sleeve (840) is threadedly sleeved on the outer side of the threaded section (830). A clamping spring (870) is provided on the side of the threaded sleeve (840) facing the support frame (700). The other end of the clamping spring (870) is fixedly connected to the support frame (700).

3. The detection rack for laboratory testing according to claim 2, characterized in that: When the compression spring (870) is in a natural state, the distance between the compression heads (860) on both sides is the smallest. The distance between the compression heads (860) on both sides of the compression spring (870) in the natural state can be adjusted by rotating the threaded sleeve (840), thereby changing the clamping force of the compression heads (860) on the test tube.

4. The detection rack for laboratory testing according to claim 2 or 3, characterized in that: A sliding bar (820) is fixed on the side wall of the smooth guide section (810) along the axial direction. The sliding bar (820) is arranged in a long strip shape. A sliding groove is provided on the side wall of the guide hole (710) corresponding to the sliding bar (820), and the sliding bar (820) slides in the sliding groove.

5. The detection rack for laboratory testing according to claim 1, characterized in that: The support frame (700) is connected to the rotating base (200) via a lifting adjustment mechanism, which is located at both ends of the support frame (700). The lifting adjustment mechanism includes two vertical lifting rails (300), the lower ends of the lifting rails (300) are fixed to the rotating base (200), and the upper ends are fixedly connected through the top plate (400), and the ends of the support frame (700) are slidably connected to the lifting rails (300); and also includes a vertical lifting screw rod (500), the upper end of the lifting screw rod (500) is rotatably connected to the top plate (400), and the lower end is rotatably connected to the rotating base (200) through a bearing, and the positions of the top plate (400) at both ends of the support frame (700) are provided with connecting seats (600), the lifting screw rod (500) is threaded through the connecting seat (600), and the lifting screw rod (500) is rotated to adjust the height position of the connecting seat (600), thereby changing the height of the support frame (700).

6. The detection rack for laboratory testing according to claim 1 or 5, characterized in that: A bottom assembly (900) is provided on the corresponding rotating base (200) directly below each test tube. The bottom assembly (900) includes a fixed pad (920) fixed on the upper surface of the rotating base (200) and a plurality of splicing pads (910) stacked vertically upwards. The number of the splicing pads (910) is adjusted according to the distance between the bottom end of the test tube and the rotating base (200).

7. The detection rack for laboratory testing according to claim 6, characterized in that: Two symmetrical connecting sliders (930) are fixed on the top of the splicing pad (910) and the fixed pad (920), and the connecting slider (930) is in the shape of an elongated strip. The bottom of the test tube is located between the two connecting sliders (930), and the side of the connecting slider (930) facing the test tube is set as an arc surface; a connecting groove (940) is provided at the bottom of the splicing pad (910), and the connecting slider (930) is correspondingly set to the connecting slider (930), and the connecting slider (930) can be slidably inserted into the connecting groove (940) so that multiple splicing pads (910) are stacked together; the surface of the connecting slider (930) and the inner wall of the connecting groove (940) are covered with a rubber layer.

8. The detection rack for laboratory testing according to claim 7, characterized in that: The tops of the splicing pad (910) and the fixed pad (920) are both provided with a buffer groove (960) located between the two connecting sliders (930), and the buffer groove (960) is filled with a flexible pad (950), and the flexible pad (950) is a flexible material that can be compressed into the buffer groove (960), and the upper surface of the flexible pad (950) is 0.1-0.5 mm higher than the upper end of the buffer groove (960).

9. The detection rack for laboratory testing according to claim 1, characterized in that: A parallel fixed base (100) is arranged below the rotating base (200), and the fixed base (100) and the rotating base (200) are rotatably connected via a vertical rotating component (140). An arc-shaped guide groove (110) is provided on the upper surface of the fixed base (100), and the central axis of the guide groove (110) coincides with the central axis of the rotating component (140). A sliding column (120) extending into the guide groove (110) is fixed on the rotating base (200), and the sliding column (120) slides along the guide groove (110). Reset elastic bands (130) that can provide elastic force in the horizontal direction are fixed on both sides of the sliding column (120), and when the sliding column (120) is located at the midpoint of the guide groove (110), the reset elastic bands (130) on both sides are at a natural length.

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