Inspection test tube fixing frame
By setting up a sponge and pushing device in the test tube fixing rack, the problem of the test tube disengagement during collision or handling is solved, and a more stable fixing effect is achieved, ensuring that the test tube does not disengage during accidental collision or bump.
Patent Information
- Application Number
- CN202420999939.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-10
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-05-10
AI Technical Summary
The existing test tube fixing racks can easily cause the test tube to detach and cause damage during accidental collision or handling.
A fixing frame consisting of a top plate, a middle plate and a bottom plate is designed. A sponge is arranged between the middle plate and the bottom plate. The sponge occupies 1/3 to 1/2 times the diameter range of the test tube slot and is equipped with a push device to enhance the sponge. Compression retracting force ensures that the test tube remains fixed during insertion and handling.
Effectively prevent the test tube from falling off after accidentally bumping the fixing rack, providing a more reliable fixing effect, especially during handling, which can withstand the influence of severe bumps.
Smart Images
Figure CN222219668U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of testing equipment, in particular to a testing test tube fixing frame. Background Art
[0002] Test tubes are widely used in various inspection projects involving biochemical reactions. However, due to their long and thin shape, test tubes are difficult to be placed independently and stably, so a fixed rack is needed to hold the test tubes. Although the existing fixed rack can stably hold the test tubes under normal circumstances, if it is accidentally bumped or encounters a large bump during the overall transportation process, the test tube may fall out of the fixed rack and then fall and break. Summary of the invention
[0003] Therefore, the technical problem to be solved by the utility model is to overcome the defect of the prior art test tube fixing rack that the test tube may be detached when it is accidentally collided or encounters a large bump during transportation.
[0004] In order to solve the above technical problems, the present application provides a test tube fixing rack, comprising
[0005] A test tube fixing rack comprises a top plate, a middle plate and a bottom plate which are fixedly connected together in sequence from top to bottom; coaxial and equal-diameter test tube insertion holes are provided on the top plate and the middle plate, and a test tube slot which is coaxial and equal-diameter to the test tube insertion hole is provided on the top surface of the bottom plate; a sponge is arranged between the middle plate and the bottom plate; when viewed from a top view, the side edge of the sponge enters the circumference of the test tube slot and occupies 1 / 3 to 1 / 2 times the diameter of the test tube slot.
[0006] Furthermore, it also includes a pushing device, the height of the sponge is the distance from the middle plate to the bottom plate, the sponge is slidably connected between the middle plate and the bottom plate, and the pushing device is suitable for pushing the sponge to continue entering the circumferential range of the test tube slot.
[0007] Furthermore, the pushing device includes a rotating device, a cam and a pressure plate; the pressure plate is bonded to the opposite side of the circumference of the sponge entering the test tube slot, and the cam is driven to rotate by the rotating device and abuts against the pressure plate.
[0008] Furthermore, the rotating device includes a lever and a rotating shaft; the top plate, the middle plate and the bottom plate are fixedly connected together through a vertical bracket, the rotating shaft is rotatably connected to the vertical bracket, and the lever and the cam are fixedly connected to the rotating shaft.
[0009] Furthermore, the outer side surface of the pressure plate is a plane, the contour line of the cam includes a first straight section that can abut against the outer side surface of the pressure plate, and a vertical line is drawn from the rotation axis of the cam to the first straight section to form a first vertical line, and the foot of the first vertical line is located on the first straight section.
[0010] Further, the foot of the first perpendicular line is located at the midpoint of the first straight section.
[0011] Furthermore, the contour line of the cam also includes a second straight section that can abut against the outer side surface of the pressure plate, and a first corner is formed between the second straight section and the first straight section, and the first corner is a rounded corner.
[0012] Further, the depth of the test tube slot is greater than the radius of the test tube slot.
[0013] Furthermore, a plurality of test tube insertion holes are arranged side by side on the top plate and the middle plate, and test tube slots corresponding to the test tube insertion holes are opened on the top surface of the bottom plate, and the sponges entering the circumference of the test tube slots in the same row are the same long strip of sponge.
[0014] Furthermore, multiple rows of test tube insertion holes are arranged in parallel on the top plate and the middle plate, and the pressure plates in different rows are fixedly connected together by connecting plates, and the cam abuts against the outermost pressure plates.
[0015] By adopting the above technical solution, the utility model has the following technical effects:
[0016] The test tube fixing frame provided by the utility model is provided with a top, middle and bottom three-layer plate, and a sponge is provided between the middle plate and the bottom plate, and the sponge occupies a circumferential range of the test tube slot of 1 / 3 to 1 / 2 times the diameter. Therefore, when the test tube is inserted, it will first enter the area between the top plate and the middle plate. Since there is no obstacle in this area, the test tube can be inserted very smoothly. Later, when the test tube is about to be inserted to the bottom and enters the area between the middle plate and the bottom plate, because there is a sponge blocking it, and the blocking sponge only occupies about 1 / 3 to 1 / 2 times the diameter of the test tube, the sponge can be pushed to retract when the hemispherical bottom of the test tube is pressed down. The compressed and retracted sponge can always provide squeezing force to the inserted test tube under the action of its own resilience, so that the test tube is tightly attached to the test tube insertion hole and the test tube slot, thereby fixing the inserted test tube and avoiding the problem of the test tube falling out due to lack of restraint after the fixing frame is accidentally knocked over. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0018] Figure 1 It is a schematic cross-sectional view of the structure of an embodiment of the utility model;
[0019] Figure 2 for Figure 1 Sectional view at AA in the middle;
[0020] Figure 3 It is a schematic structural diagram of a cam according to an embodiment of the utility model.
[0021] Description of reference numerals:
[0022] 1-stand, 2-test tube socket, 3-middle plate, 4-cam, 5-rotating shaft, 6-pressing plate, 7-sponge, 8-bottom plate, 9-test tube slot, 10-connecting plate, 11-top plate, 12-pull rod, 13-first vertical line, 14-first straight section, 15-first corner, 16-second straight section. DETAILED DESCRIPTION
[0023] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] It should be noted that in the description of the present invention, the coordinate system used in this specification when describing the orientation is determined by the posture of its main view, and the naming of the observation angle of the corresponding view is also based on this. Therefore, the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. in this specification indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0026] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
[0027] This embodiment provides a test tube fixing rack. In one implementation, Figures 1 to 3As shown, it comprises a top plate 11, a middle plate 3 and a bottom plate 8 which are fixedly connected together from top to bottom in sequence; a coaxial and equal-diameter test tube insertion hole 2 is provided through the top plate 11 and the middle plate 3, and a test tube slot 9 coaxial and equal-diameter to the test tube insertion hole 2 is provided on the top surface of the bottom plate 8; a sponge 7 is provided between the middle plate 3 and the bottom plate 8; when viewed from the top, that is, from Figure 2 When viewed from the right side of the sponge 7 , the side edge of the sponge 7 enters the circumference of the test tube slot 9 and occupies 1 / 3 to 1 / 2 of the diameter of the test tube slot 9 .
[0028] The device is provided with three layers of plates, namely, top, middle and bottom plates, and a sponge 7 is provided between the middle plate 3 and the bottom plate 8, and the sponge 7 occupies a circumferential range of the test tube slot 9 of 1 / 3 to 1 / 2 times the diameter. Therefore, when the test tube is inserted, it will first enter the area between the top plate 11 and the middle plate 3. Since there is no obstacle in this area, the insertion of the test tube is very smooth. Later, when the test tube is about to be inserted to the bottom and enters the area between the middle plate 3 and the bottom plate 8, because of the obstruction of the sponge 7, and the obstructed sponge 7 only occupies about 1 / 3 to 1 / 2 times the diameter of the test tube, the sponge 7 can be pushed to retract when the hemispherical bottom of the test tube is pressed down. The compressed and retracted sponge 7 can always provide squeezing force to the inserted test tube under the action of its own resilience, so that the test tube is tightly attached to the test tube insertion hole 2 and the test tube slot 9, thereby fixing the inserted test tube and avoiding the problem of the test tube falling out due to lack of restraint after the fixing frame is accidentally knocked over.
[0029] Based on the above implementation, in a preferred implementation, Figure 1 and 2 As shown, it also includes a pushing device, the height of the sponge 7 is the distance from the middle plate 3 to the bottom plate 8, the sponge 7 is slidably connected between the middle plate 3 and the bottom plate 8, and the pushing device is suitable for pushing the sponge 7 to continue to enter the circumference of the test tube slot 9. When the fixing rack is filled with test tubes and moved as a whole, for example, when it is placed on a cart for large-scale transfer, it may produce very severe bumps due to uneven roads. In order to ensure that the test tubes are more reliably fixed during the transportation process, the device is provided with a pushing device and a slidable sponge 7, so that when it is necessary to move, the sponge 7 can be further pressed toward the test tube through the pushing device, so that the sponge 7 can obtain a stronger compression resilience, thereby providing a stronger extrusion and fixing ability for the test tube, and preventing the test tube from being shaken off and falling during severe bumps.
[0030] Based on the above implementation, in a preferred implementation, Figure 1 and 2As shown, the pushing device includes a rotating device, a cam 4 and a pressing plate 6; the pressing plate 6 is bonded to the side opposite to the circumference of the sponge 7 entering the test tube slot 9, and the cam 4 is driven by the rotating device to rotate and abut against the pressing plate 6. Pushing the sponge 7 by rotating the cam 4 is a technical solution with simple operation and simple structure, which is convenient for users to use and helps to reduce manufacturing costs.
[0031] Based on the above implementation, in a preferred implementation, Figure 1 and 2 As shown, the rotating device includes a lever 12 and a rotating shaft 5; the top plate 11, the middle plate 3 and the bottom plate 8 are fixedly connected together through the vertical bracket 1, the rotating shaft 5 is rotatably connected to the vertical bracket 1, and the lever 12 is fixedly connected to the cam 4 on the rotating shaft 5. By rotating the cam 4 through the lever 12, the force exerted by the user when rotating the cam 4 can be reduced by lever action, which is convenient for the user to use.
[0032] Based on the above implementation, in a preferred implementation, Figures 1 to 3 As shown, the outer side of the pressing plate 6 is a plane, and the contour line of the cam 4 includes a first straight section 14 that can abut against the outer side of the pressing plate 6. A vertical line 13 is drawn from the rotation axis of the cam 4 to the first straight section 14, and the foot of the first vertical line 13 is located on the first straight section 14. The cam 4 of this structure can make the rebound force pass through the rotation axis of the cam 4 when the sponge 7 rebounds without generating a torque that rotates the cam 4, thereby preventing the cam 4 from resetting and rotating due to the rebound of the sponge 7, and then causing the test tube to loosen, thereby improving the reliability of the device.
[0033] Based on the above implementation, in a preferred implementation, Figure 3 As shown, the foot of the first vertical line 13 is located at the midpoint of the first straight section 14. After such a setting, because the rotation radius of the two end points of the first straight section 14 must be greater than the rotation radius of the midpoint of the first straight section 14, when the cam 4 rotates to the extrusion state, when the end point of the first straight section 14 crosses the line connecting the rebound force of the sponge 7 and the rotation axis of the cam 4, a force that causes the cam 4 to continue to rotate will be generated under the action of the rebound force of the sponge 7 until the first straight section 14 abuts against the outer side surface of the pressing plate 6, thus forming a limiting structure. In the absence of external force, the first straight section 14 will always maintain a stable abutment with the outer side surface of the pressing plate 6, preventing the cam 4 from resetting and rotating, thereby improving the reliability of the device.
[0034] Based on the above implementation, in a preferred implementation, Figure 3As shown, the contour line of the cam 4 also includes a second straight section 16 that can abut against the outer side of the pressure plate 6. The second straight section 16 and the first straight section 14 form a first corner 15, and the first corner 15 is a rounded corner. The second straight section 16 is provided to prevent the cam 4 from rotating freely in the loose state and causing corresponding abnormal noise. The first rounded corner 15 is provided between the two contact surfaces of the cam 4 in the loose state and the squeezed state, which can reduce the wear of the cam 4 and increase the service life of the equipment.
[0035] Based on the above implementation, in a preferred implementation, Figure 1 As shown, the depth of the test tube slot 9 is greater than the radius of the test tube slot 9. This arrangement allows the hemispherical end of the test tube bottom to be completely sunk into the test tube slot 9, preventing the test tube from slipping out. If the hemispherical end protrudes from the test tube slot 9, it is possible that the sponge 7 pushes in the lateral direction, and then the test tube slips out of the test tube slot 9 under the upward component force generated by the hemispherical structure.
[0036] Based on the above implementation, in a preferred implementation, Figure 2 As shown, a plurality of test tube insertion holes 2 are arranged side by side on the top plate 11 and the middle plate 3, and test tube slots 9 corresponding to the test tube insertion holes 2 are opened on the top surface of the bottom plate 8, and the sponges 7 entering the circumference of the test tube slots 9 in the same row are the same long strip sponge. After such arrangement, while increasing the test tube carrying capacity, the use of a single sponge 7 is conducive to simplifying the equipment structure and improving the utilization rate of parts.
[0037] Based on the above implementation, in a preferred implementation, Figure 2 As shown, multiple rows of test tube insertion holes 2 are arranged side by side on the top plate 11 and the middle plate 3, and the pressure plates 6 in different rows are fixedly connected together by the connecting plate 10, and the cam 4 abuts against the outermost pressure plate 6. After such arrangement, while increasing the test tube carrying capacity, it is not necessary to set up multiple cams 4 and related parts, which simplifies the equipment structure, makes its structure more compact, and makes the overall size lighter and more convenient.
[0038] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.
Claims
1. A test tube fixing rack, characterized in that: The invention comprises a top plate (11), a middle plate (3) and a bottom plate (8) which are fixedly connected together in sequence from top to bottom; coaxial and equal-diameter test tube insertion holes (2) are provided through the top plate (11) and the middle plate (3); a test tube slot (9) coaxial and equal-diameter to the test tube insertion hole (2) is provided on the top surface of the bottom plate (8); a sponge (7) is provided between the middle plate (3) and the bottom plate (8); when viewed from a top view, the side edge of the sponge (7) enters the circumference of the test tube slot (9) and occupies 1 / 3 to 1 / 2 times the diameter of the test tube slot (9).
2. The test tube fixing rack according to claim 1, characterized in that: It also includes a pushing device, the height of the sponge (7) is the distance between the middle plate (3) and the bottom plate (8), the sponge (7) is slidably connected between the middle plate (3) and the bottom plate (8), and the pushing device is suitable for pushing the sponge (7) to continue entering the circumference of the test tube slot (9).
3. The test tube fixing rack according to claim 2, characterized in that: The pushing device comprises a rotating device, a cam (4) and a pressing plate (6); the pressing plate (6) is bonded to the side opposite to the circumference of the sponge (7) entering the test tube slot (9); the cam (4) is driven to rotate by the rotating device and abuts against the pressing plate (6).
4. The test tube fixing rack according to claim 3, characterized in that: The rotating device comprises a lever (12) and a rotating shaft (5); the top plate (11), the middle plate (3) and the bottom plate (8) are fixedly connected together via a vertical bracket (1); the rotating shaft (5) is rotatably connected to the vertical bracket (1); and the lever (12) and the cam (4) are fixedly connected to the rotating shaft (5).
5. The test tube fixing rack according to claim 3, characterized in that: The outer side surface of the pressure plate (6) is a plane, the contour line of the cam (4) includes a first straight section (14) that can abut against the outer side surface of the pressure plate (6), and a vertical line (13) is drawn from the rotation axis of the cam (4) to the first straight section (14), and the foot of the first vertical line (13) is located on the first straight section (14).
6. The test tube fixing rack according to claim 5, characterized in that: The foot of the first perpendicular line (13) is located at the midpoint of the first straight section (14).
7. The test tube fixing rack according to claim 5, characterized in that: The contour line of the cam (4) also includes a second straight section (16) that can abut against the outer side surface of the pressure plate (6), and a first corner (15) is formed between the second straight section (16) and the first straight section (14), and the first corner (15) is a rounded corner.
8. The test tube fixing rack according to any one of claims 1 to 7, characterized in that: The depth of the test tube slot (9) is greater than the radius of the test tube slot (9).
9. The test tube fixing rack according to any one of claims 3 to 7, characterized in that: A plurality of test tube insertion holes (2) are arranged side by side on the top plate (11) and the middle plate (3), and test tube slots (9) corresponding to the test tube insertion holes (2) are provided on the top surface of the bottom plate (8), and the sponges (7) entering the circumference of the test tube slots (9) in the same row are the same long strip of sponge.
10. The test tube fixing rack according to claim 9, characterized in that: A plurality of rows of test tube insertion holes (2) are arranged in parallel on the top plate (11) and the middle plate (3), and the pressure plates (6) in different rows are fixedly connected together via a connecting plate (10), and the cam (4) abuts against the outermost pressure plate (6).