EP pipe bearing device

Abstract

The utility model relates to the field of EP pipe experiment equipment, in particular to an EP pipe bearing device. The EP pipe bearing device comprises a device main body, the device main body is provided with a main body supporting structure, and the main body supporting structure forms a supporting plane used for bearing the device main body so that the device main body can be supported on a corresponding bearing base body; the perforated inclined plane is obliquely arranged relative to the supporting plane; the positioning hole is used for positioning an EP pipe, the positioning hole is provided with an inserting opening for the EP pipe to be inserted, the inserting opening is formed in the hole opening inclined plane, and the axis of the positioning hole is obliquely arranged relative to the supporting plane. The EP pipe rack mainly solves the technical problem that the EP pipe needs to be repeatedly taken and placed on the EP pipe rack and is inconvenient to use.

Description

Technical Field

[0001] This utility model relates to the field of EP tube experimental equipment, specifically to an EP tube support device. Background Technology

[0002] EP tubes originated from Eppendorf in Germany and are therefore also known as Eppendorf tubes. As a type of small centrifuge tube, EP tubes are widely used in various experimental operations such as reagent preparation, solution mixing, and centrifugation. They are small in size and can be used in large quantities, with common capacities including 0.5ml, 1.5ml, 2ml, and 5ml. They can be used for micro-manipulation in molecular biology experiments, such as DNA / RNA extraction and purification, and can also be used with microcentrifuges for the centrifugation of micro-samples. They are also suitable for storing micro-biological samples.

[0003] EP tubes are generally cylindrical, with a rounded bottom (nearly hemispherical) or a pointed bottom (conical), and have a relatively small diameter. EP tubes are typically placed on an EP tube holder with positioning holes, allowing the tube to stand upright after insertion. When adding or removing reagents or samples from the EP tube, the user usually needs to remove the tube from the holder with one hand and operate the pipette with the other. During addition or removal, the EP tube should generally be tilted to reduce air bubbles, prevent splashing, facilitate observation of liquid flow for controlling the addition speed, and minimize contact between the pipette tip and the tube wall, thus reducing the risk of cross-contamination.

[0004] However, EP tubes are small in size, and a large number of EP tubes are often needed each time, making it inconvenient to pick up and put down on the EP tube rack. Operators need to repeat the picking and putting-in actions many times, which is quite inconvenient. Utility Model Content

[0005] This utility model mainly solves the technical problem that EP tubes need to be repeatedly picked up and placed on EP tube racks, which is inconvenient to use.

[0006] This utility model provides an EP tube bearing device.

[0007] An EP pipe carrying device includes a main body, the main body having:

[0008] The main support structure forms a support plane for supporting the main body of the device, so that the main body of the device can be supported on a corresponding support base;

[0009] An inclined surface for opening, wherein the inclined surface for opening is arranged at an angle relative to the supporting plane;

[0010] The positioning hole is used to position the EP tube. The positioning hole has an insertion port for inserting the EP tube. The insertion port is disposed on the inclined surface of the opening. The axis of the positioning hole is arranged inclined relative to the support plane.

[0011] In one embodiment, the axis of the positioning hole is perpendicular to the inclined surface of the opening.

[0012] In one embodiment, the positioning hole is a blind hole, and the bottom of the blind hole is closed.

[0013] In one embodiment, the positioning hole is a blind hole, and a through hole is provided at the bottom of the blind hole, the diameter of which is smaller than the diameter of the positioning hole.

[0014] In one embodiment, the angle of inclination of the opening bevel relative to the supporting plane is 25° to 50°.

[0015] In one embodiment, the main body of the device is a block with a flat bottom surface, and the main body support structure is formed by the flat bottom surface.

[0016] In one embodiment, the block is a stretched body with a right-angled trapezoidal cross-section. The main body of the device and the side corresponding to the straight leg of the right-angled trapezoid form the main support structure, and the main body of the device and the side corresponding to the inclined leg of the right-angled trapezoid form the opening slope.

[0017] In one embodiment, the main body of the device includes a first positioning plate and a second positioning plate that are parallel to each other and are arranged vertically at intervals along the inclined surface of the opening. The inclined surface of the opening is formed by the first positioning plate, and the positioning hole is provided on the first positioning plate. The second positioning plate is located on the side of the first positioning plate that is close to the support plane, and the second positioning plate is provided with a support hole. The diameter of the support hole is smaller than that of the positioning hole, and the support hole is used to support the bottom of the EP tube.

[0018] In one embodiment, the main body of the device includes a first upright plate and a second upright plate, the first upright plate and the second upright plate are arranged at an interval, the first positioning plate and the second positioning plate are connected between the first upright plate and the second upright plate, and the main body support structure is formed by the bottom edges of the first upright plate and the second upright plate.

[0019] In one embodiment, the main body of the device is made of a transparent material.

[0020] The beneficial effects of this utility model are:

[0021] According to the aforementioned EP tube support device, the main support structure can form a support plane for the main body of the device to be supported on the corresponding support base. The main body of the EP tube support device is provided with an opening slope, which has an angle with the support plane. The opening slope allows the insertion port of the positioning hole to be set in a gradient on the main body of the device, making full use of the space on the main body of the device. Furthermore, the axis of the positioning hole is arranged at an inclination relative to the support plane, which allows the EP tube to be positioned at an inclination on the main body of the device. The operator can directly use a pipette to inject or aspirate liquid into the EP tube without having to remove and put back the EP tube, thus making it convenient for the operator to use, reducing the operator's workload and improving experimental efficiency. Attached Figure Description

[0022] Figure 1 This is a perspective view of one embodiment of the EP tube bearing device of this utility model;

[0023] Figure 2 for Figure 1 Top view of the EP pipe support device;

[0024] Figure 3 for Figure 2 AA section view;

[0025] Figure 4 This is a perspective view of another embodiment of the EP tube bearing device of this utility model;

[0026] Figure 5 for Figure 4 A stereoscopic view from another perspective;

[0027] Figure 6 for Figure 5 Top view of the EP pipe bearing device;

[0028] Figure 7 for Figure 6 BB section view;

[0029] Figure 8 This is a perspective view of another embodiment of the EP tube bearing device of this utility model.

[0030] List of feature names corresponding to the labels in the figure:

[0031] 100. Main body of the device; 110. Straight waist; 120. Sloping waist;

[0032] 200. Main supporting structure;

[0033] 300. Beveled surface for opening;

[0034] 400, Positioning hole; 410, Insertion port;

[0035] 500. Main body of the device; 510. First positioning plate; 511. Positioning hole; 5111. First positioning hole; 5112. Second positioning hole; 520. Second positioning plate; 521. Support hole;

[0036] 610. First upright board; 620. Second upright board. Detailed Implementation

[0037] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0038] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments. At the same time, the steps or actions in the method description can be rearranged or adjusted in a manner obvious to those skilled in the art. Therefore, the various orders in the specification and drawings are only for the clear description of a particular embodiment and do not imply a necessary order, unless otherwise stated that a particular order must be followed.

[0039] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0040] In this utility model, the positioning hole 400 for positioning the EP tube on the EP tube carrier device is set in a three-dimensional form on the main body 100 of the device, and the EP tube is positioned at an angle by means of the inclined surface 300 of the opening. When injecting or aspirating liquid from the EP tube, the operator does not need to take or put the EP tube in addition to meet the needs of liquid injection and aspiration operation, and does not need to use his or her hands to maintain the inclination of the EP tube, thus making it convenient to realize the liquid injection and aspiration operation.

[0041] An embodiment of the EP pipe bearing device in this utility model:

[0042] In one embodiment, please refer to Figure 1The EP pipe bearing device includes a main body 100, which has a main support structure 200, an opening bevel 300, and a positioning hole 400.

[0043] Please refer to Figure 2 and Figure 3 In some embodiments, the main body 100 of the device can be a block made of plastic, such as polypropylene (PP) or acrylic (plexiglass). Polypropylene is a common plastic material with good chemical stability and heat resistance. Acrylic is a transparent and sturdy plastic material with good chemical resistance and aesthetics. The molding method of the main body 100 is not limited; for example, it can be formed by injection molding or by machining.

[0044] Those skilled in the art will understand that when performing liquid injection or aspiration operations on the EP tube, it is necessary to monitor the amount of liquid inside the EP tube. Therefore, in some embodiments, the main body 100 of the device is made of a transparent material, which facilitates easier observation of the amount of liquid inside the EP tube. Of course, in some other embodiments, the main body 100 of the device can also be made of a non-transparent material. Since the EP tube can be tilted and positioned inside the main body 100 of the device, the operator can more easily observe the amount of liquid inside through the opening of the EP tube.

[0045] The main body 100 of the device, being a block shape, possesses considerable weight, thus forming a stable EP tube mounting base. The block can have a flat bottom surface, which forms a supporting plane for the main body 100 and constitutes the main support structure 200, allowing the main body 100 to be supported on a corresponding support base, such as a flat workbench. Generally, the support surface of the support base for the EP tube mounting device is horizontal, and the supporting plane formed by the main body 100 is also horizontal. However, those skilled in the art will understand that the support surface of the support base can also have an inclination angle. By relying on the relative inclination arrangement between the perforated inclined surface 300 and the supporting plane, conditions can still be created for the inclined positioning of the EP tube during use. In one specific embodiment, the inclination angle θ of the perforated inclined surface 300 relative to the supporting plane is 25° to 50°, for example, 30° or 45°, which can adapt to a variety of operating scenarios.

[0046] It should be noted that the supporting plane can be a solid plane, such as the flat bottom surface of the block; in some other embodiments, the supporting plane can also be a virtual plane formed by several support points. For example, support pads or support columns can be set on the four corners and / or the sides of the bottom of the block. The support pads or support columns can raise the height of the device body 100, and can achieve stable placement of the device body 100 when the bottom surface of the device body 100 or the bearing surface of the bearing base is not flat enough or has foreign objects attached. In this case, the bottom end face of the support pad or support column can form a virtual supporting plane.

[0047] To achieve the inclined arrangement of the positioning hole 400, the main body 100 of the device is provided with an opening inclined surface 300, which forms an angle θ with the supporting plane. In a specific embodiment, the block is a stretched body with a right-angled trapezoidal cross-section, meaning that the cross-section at all points along the axial direction is the same right-angled trapezoidal shape. The side of the main body 100 corresponding to the straight leg 110 of the right-angled trapezoid forms the main support structure 200, and the side of the main body 100 corresponding to the inclined leg 120 of the right-angled trapezoid forms the opening inclined surface 300. The block adopts a right-angled trapezoidal shape stretched body, which can be easily formed. Those skilled in the art should know that for a right-angled trapezoid, the straight leg 110 is the leg corresponding to the height of the right-angled trapezoid, and the inclined leg 120 is the leg of the right-angled trapezoid that is arranged opposite to the straight leg 110.

[0048] This application does not limit the number of 300mm beveled openings; for example, please refer to... Figure 1 and Figure 2 All positioning holes 400 can be set on the same inclined surface 300, resulting in a simple structure, neat arrangement, and ease of processing. However, in some other embodiments, the inclined surface 300 can be set in two, three, four, five, six, or more locations. The inclined surfaces 300 can be separated from each other, and can be located on the same plane or on different planes. For example, the main body 100 of the device can be provided with a first and a second inclined surface arranged in a stepped manner, with a height difference in the vertical direction; and positioning holes 400 of different diameters and / or depths can be provided on the first and second inclined surfaces to allow for the placement of EP tubes of different specifications in separate areas.

[0049] As a structure for positioning EP tubes, the axis of the positioning hole 400 on the main body 100 is arranged at an angle relative to the supporting plane, which creates conditions for tilting the EP tube. The positioning hole 400 has an insertion port 410 for inserting the EP tube. The insertion port 410 can be set on the same opening slope 300, so that the tube openings of each EP tube on the corresponding opening slope 300 face the same direction, which facilitates liquid injection and aspiration operations.

[0050] In one specific embodiment, the axis of the positioning hole 400 is perpendicular to the inclined surface 300 of the opening, which facilitates the machining of the positioning hole 400. Those skilled in the art will understand that in some other embodiments, the axis of the positioning hole 400 may also form a non-90° angle with the inclined surface 300 of the opening, as long as it can be arranged at an inclination relative to the support plane of the device body 100.

[0051] It should be noted that the diameters of the positioning holes 400 on a device body 100 can be the same or different. When a device body 100 has positioning holes 400 of different diameters, the EP tube carrier device can accommodate EP tubes of different diameters. The positioning hole 400 and the EP tube can be clearance fit, transition fit, or have a set diameter difference, such as a diameter difference not exceeding 2mm, to enable the insertion and removal of the EP tube and to meet the positioning requirements during liquid injection and aspiration. If it is necessary for the EP tube to be fixed on the EP tube carrier device, the positioning hole 400 and the EP tube can also be interference fit.

[0052] Please refer to Figure 3 In some embodiments, the positioning hole 400 can be a blind hole, with its bottom closed. Using a blind hole design for the positioning hole 400 facilitates its machining and provides stable support for EP tubes with different bottom dimensions and / or structures. The bottom shape of the blind hole can be hemispherical, conical, or planar, etc. After the EP tube is inserted into the positioning hole 400, the sidewall of the blind hole can radially position the EP tube, i.e., position the EP tube radially; the bottom wall of the blind hole can axially position the EP tube, i.e., position the EP tube axially, thereby ensuring the stable placement of the EP tube.

[0053] In some other embodiments, a through hole can be provided at the bottom of the blind hole. The diameter of the through hole is smaller than that of the positioning hole 400, which allows at least a portion of the bottom of the EP tube to be embedded, thereby achieving a better positioning effect and preventing foreign objects or liquid from entering the blind hole.

[0054] For EP tube support devices, there is no uniform standard for the number of positioning holes 400. Different manufacturers may provide tube racks with different numbers of holes based on market demand and specific application scenarios. For example, 50ml EP tube racks may have 10-well and 12-well specifications, with a hole diameter of 30mm; 1.5ml EP tube racks are usually used with PCR tubes, with a hole diameter of 11mm; while 96-well EP tube racks are relatively more commonly used. The positioning holes 400 can be divided into 8 rows (A-H) and 12 columns (1-12), forming an 8×12 array, totaling 96 holes. Each row of positioning holes 400 is identified by a letter-based row marker, and each column of positioning holes 400 is identified by a number-based column marker, which facilitates the identification of a large number of EP tubes. This application does not limit the number of positioning holes 400; it can be set as needed.

[0055] In other embodiments of the EP pipe support device of this application, the main body 500 of the device may also be a frame structure. For example, please refer to... Figure 4 and Figure 5 The main body 500 of the device may include a first positioning plate 510 and a second positioning plate 520 that are parallel to each other. The first positioning plate 510 and the second positioning plate 520 are arranged vertically at intervals along the inclined surface of the opening. The inclined surface of the opening is formed by the first positioning plate 510, and a positioning hole 511 is provided on the first positioning plate 510. The second positioning plate 520 is located on the side of the first positioning plate 510 closer to the support plane, and a support hole 521 is provided on the second positioning plate 520. The diameter of the support hole 521 is smaller than that of the positioning hole 511, and the support hole 521 is used to support the bottom of the EP tube. Using the first positioning plate 510 and the second positioning plate 520 to position the EP tube helps to reduce the overall weight of the main body 500 of the device, and is more suitable for large-capacity EP tubes. Furthermore, the interval between the first positioning plate 510 and the second positioning plate 520 can form an observation space, which facilitates the observation of the liquid condition inside the EP tube.

[0056] To support the first positioning plate 510 and the second positioning plate 520, in one specific embodiment, the device body 500 may further include a first upright plate 610 and a second upright plate 620, which are arranged at intervals, and the first positioning plate 510 and the second positioning plate 520 are connected between the first upright plate 610 and the second upright plate 620. By setting the first upright plate 610 and the second upright plate 620, the first positioning plate 510 and the second positioning plate 520 can be supported in a simple structure, which is convenient for manufacturing. The first upright plate 610, the second upright plate 620, the first positioning plate 510 and the second positioning plate 520 can be integrally formed or assembled into one piece. For example, the ends of the first positioning plate 510 and the second positioning plate 520 can be fixedly connected to the first upright plate 610 and the second upright plate 620 respectively by means of bonding, welding, fastener connection, etc.

[0057] In the above embodiments, the first positioning plate 510 and the second positioning plate 520 are connected to the first upright plate 610 and the second upright plate 620 on both sides of the length direction, respectively. In some other embodiments, the first upright plate 610 and the second upright plate 620 can also be arranged on both sides of the width direction of the first positioning plate 510 and the second positioning plate 520. In addition, two sets of first upright plates 610 and second upright plates 620 can be arranged, one set of first upright plates 610 and second upright plates 620 being arranged on both sides of the length direction of the first positioning plate 510 and the second positioning plate 520, and the other set of first upright plates 610 and second upright plates 620 being arranged on both sides of the width direction of the first positioning plate 510 and the second positioning plate 520.

[0058] In one embodiment, the main support structure can be formed by the bottom edges of the first upright plate 610 and the second upright plate 620, which avoids forming a large support plane and facilitates the stable placement of the EP pipe bearing device. In some other embodiments, support pads or support columns can also be provided on the bottom surfaces of the first upright plate 610 and the second upright plate 620, which can further reduce the area of ​​the support plane.

[0059] Please refer to Figure 4 , Figure 5 and Figure 7 The first upright plate 610 can be an isosceles trapezoidal plate, and the first positioning plate 510 and the second positioning plate 520 can be parallel to the sloping sides of the isosceles trapezoid. In some other embodiments, the first positioning plate 510 and the second positioning plate 520 can also be supported by a column structure or by a long strip plate, for example, columns or long strip plates can be provided at the four corners of the first positioning plate 510, the second positioning plate 520, and the four corners respectively.

[0060] In some other embodiments, please refer to Figure 8 ,and Figure 6 The difference in the structure shown is that the positioning holes 511 on the main body 500 can be provided in two specifications, including a first positioning hole 5111 and a second positioning hole 5112, which can support two corresponding specifications of EP tubes. Those skilled in the art will understand that the types of positioning holes 511 on the main body 500 are not limited to two, but can be three, four, five or more, and the number, location and arrangement of each specification of positioning holes 511 are not limited.

[0061] In use, the EP tube support device can be stably supported on the corresponding support base by the support plane formed by the main support structure. At this time, the positioning hole 511 can be arranged at an angle relative to the horizontal plane. The EP tube of the corresponding specification to be used can be inserted into the positioning hole 511 through the insertion port on the inclined surface of the opening, which can meet the liquid injection and / or liquid aspiration requirements of the EP tube. When performing liquid injection and aspiration operations, the operator does not need to remove the EP tube from the EP tube support device. He / she can directly pick up the pipette and operate on the EP tube. This can save the time of picking up and putting down the EP tube, and eliminate the operation of keeping the EP tube at a set tilt angle. It is convenient to use, helps to reduce the workload, and improves the operating efficiency.

[0062] The above-described specific examples are for illustrative purposes only and are not intended to limit the scope of this invention. Those skilled in the art to which this invention pertains can make various simple deductions, modifications, or substitutions based on the concept of this invention.

Claims

1. An EP pipe bearing device, characterized in that, Includes a device body, the device body having: The main support structure forms a support plane for supporting the main body of the device, so that the main body of the device can be supported on a corresponding support base; An inclined surface for opening, wherein the inclined surface for opening is arranged at an angle relative to the supporting plane; The positioning hole is used to position the EP tube. The positioning hole has an insertion port for inserting the EP tube. The insertion port is disposed on the inclined surface of the opening. The axis of the positioning hole is arranged inclined relative to the support plane.

2. The EP pipe bearing device as described in claim 1, characterized in that, The axis of the positioning hole is perpendicular to the inclined surface of the opening.

3. The EP pipe carrying device as described in claim 1 or 2, characterized in that, The positioning hole is a blind hole, and the bottom of the blind hole is closed.

4. The EP pipe support device as described in claim 1 or 2, characterized in that, The positioning hole is a blind hole, and a through hole is provided at the bottom of the blind hole. The diameter of the through hole is smaller than the diameter of the positioning hole.

5. The EP pipe bearing device as described in claim 1 or 2, characterized in that, The angle of inclination of the opening slope relative to the supporting plane is 25° to 50°.

6. The EP pipe bearing device as described in claim 1 or 2, characterized in that, The main body of the device is a block, and the block has a flat bottom surface. The main body support structure is formed by the flat bottom surface.

7. The EP pipe bearing device as described in claim 6, characterized in that, The block is a stretched body with a right-angled trapezoidal cross-section. The main body of the device and the side corresponding to the straight leg of the right-angled trapezoid form the main support structure, and the main body of the device and the side corresponding to the inclined leg of the right-angled trapezoid form the opening slope.

8. The EP pipe bearing device as described in claim 1 or 2, characterized in that, The main body of the device includes a first positioning plate and a second positioning plate that are parallel to each other and are arranged at a vertical interval along the inclined surface of the opening. The inclined surface of the opening is formed by the first positioning plate, and the positioning hole is provided on the first positioning plate. The second positioning plate is located on the side of the first positioning plate that is close to the support plane. The second positioning plate is provided with a support hole, the diameter of which is smaller than that of the positioning hole. The support hole is used to support the bottom of the EP tube.

9. The EP pipe bearing device as described in claim 8, characterized in that, The main body of the device includes a first upright plate and a second upright plate, which are arranged at intervals. A first positioning plate and a second positioning plate are connected between the first upright plate and the second upright plate. The main support structure is formed by the bottom edges of the first upright plate and the second upright plate.

10. The EP tube bearing device as described in claim 1 or 2, characterized in that, The main body of the device is made of a transparent material.

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