Tray for storing reaction cups

Abstract

According to the tray for storing the reaction cups, a plurality of through holes used for storing the reaction cups are formed in a tray body, a plurality of positioning parts are arranged on the inner walls of the through holes, and the thickness of the cross sections of the positioning parts is smaller than the distance between the inner walls of the through holes and the outer walls of the reaction cups. The positioning part is in contact with the reaction cup, and the inward convex positioning ribs can reduce the inclination angle of the reaction cup, so that the probability of cup clamping is reduced. Meanwhile, the contact area between the reaction cup inserted into the through hole and the through hole is reduced, the friction force during reaction cup grabbing is reduced, and the grabbing success rate is increased.

Description

Technical Field

[0001] The utility model relates to the field of carriers, in particular to a tray for storing reaction cups. Background Art

[0002] Existing large-scale analytical and testing instruments all have a cup sorting and loading mechanism, through which the reaction cups are loaded, and the reaction cups can be automatically placed on the cup sorting and loading mechanism using a robotic arm. However, the following problems are found in the use of the existing cup sorting and loading mechanism:

[0003] If the through hole for loading the reaction cup and the reaction cup adopts a clearance fit, although there is a certain margin between the reaction cup and the through hole, which can reduce the requirements for the positioning accuracy of the robot arm, the reaction cup will tilt during the insertion process due to the margin. For some analytical testing equipment, the amount of sample required is small, and the volume of the reaction cup for holding the sample is also small. For small reaction cups, tilting in the loading through hole is more likely to cause the risk of cup jamming. Utility Model Content

[0004] In order to solve the above technical problems, this application provides the following technical solutions:

[0005] A tray for storing reaction cups comprises: a tray body is provided with a plurality of through holes for storing reaction cups, the inner walls of the through holes are provided with a plurality of positioning parts, and the cross-sectional thickness of the positioning parts is smaller than the distance between the inner walls of the through holes and the outer walls of the reaction cups.

[0006] In one embodiment, the number of positioning ribs on the inner wall of the through hole is at least three.

[0007] In one embodiment, the positioning ribs are evenly distributed on the inner wall of the through hole.

[0008] In one embodiment, the upper and lower parts of the through hole are provided with step surfaces.

[0009] In one embodiment, the step surface is a chamfered surface.

[0010] In one embodiment, the positioning rib is disposed near the lower portion of the through hole, and the surface of the positioning rib is tangent to the reaction cup placed in the through hole.

[0011] In one embodiment, a plurality of positioning notches are provided on the side wall of the tray.

[0012] In one embodiment, a plurality of positioning notches are evenly distributed on the side wall of the tray.

[0013] In one embodiment, a raised skirt extends from the side wall of the tray.

[0014] In one embodiment, a step portion is formed on the side wall of the tray, and the skirt is located at the lower part of the step portion. The number of the positioning portions is at least three.

[0015] In one embodiment, the positioning portions are evenly distributed on the inner wall of the through hole.

[0016] In one embodiment, the upper and lower parts of the through hole are provided with step surfaces.

[0017] In one embodiment, the step surface is a chamfered surface.

[0018] In one embodiment, the positioning portion is disposed near the lower portion of the through hole, and a surface of the positioning portion is tangent to a reaction cup placed in the through hole.

[0019] In one embodiment, a plurality of positioning notches are provided on the side wall of the tray.

[0020] In one embodiment, a plurality of positioning notches are evenly distributed on the side wall of the tray.

[0021] In one embodiment, a raised skirt extends from the side wall of the tray.

[0022] In one embodiment, a step portion is formed on the side wall of the tray, and the skirt is located at the lower part of the step portion.

[0023] This application has at least the following beneficial effects:

[0024] In the present application, the positioning portion contacts the reaction cup. On the one hand, the inwardly convex positioning portion can reduce the tilt angle of the reaction cup, and the reaction cup is difficult to contact the upper and lower end surfaces of the through hole, thereby reducing the probability of the cup being stuck.

[0025] On the other hand, the cup jamming phenomenon also occurs because the contact area between the reaction cup and the through hole increases, resulting in an increase in the friction between the reaction cup and the through hole. When the force for grabbing the reaction cup remains unchanged, the increase in friction will greatly hinder the reaction cup from escaping from the through hole. In the present application, the contact between the positioning part and the reaction cup reduces the contact area of ​​the reaction cup, so that the friction is small when grabbing the reaction cup and the success rate of grabbing is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the three-dimensional structure of a tray according to an embodiment of the utility model at a first viewing angle.

[0027] Figure 2 It is a schematic diagram of an enlarged partial structure of a tray according to an embodiment of the utility model.

[0028] Figure 3 This is a schematic diagram of the three-dimensional structure of a tray according to an embodiment of the utility model at a second viewing angle.

[0029] Figure 4 This is a cross-sectional view of a tray according to an embodiment of the present invention.

[0030] Figure 5 It is a partial cross-sectional view of a tray through hole according to an embodiment of the utility model.

[0031] Figure 6 The present invention is a schematic diagram of a three-dimensional structure of a palletizing tray according to an embodiment of the present invention.

[0032] Figure 7 It is a cross-sectional view of a palletizing tray according to an embodiment of the present invention.

[0033] Reference numerals:

[0034] 11. Pallet body;

[0035] 111, front; 112, back; 113, light hole;

[0036] 12. Step part;

[0037] 121, waist groove; 122, positioning notch; 123, open mouth; 124, skirt;

[0038] 13. Through hole;

[0039] 131, chamfered surface; 132, positioning rib; 133, bottom surface;

[0040] 14. Glue injection port. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0042] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not indicate quantity restrictions, but indicate the existence of at least one. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship also changes accordingly.

[0043] In actual use, if the through hole for loading the reaction cup and the reaction cup adopt a clearance fit, although there is a certain margin between the reaction cup and the through hole, which can reduce the positioning accuracy requirements of the robot arm, due to the margin, the reaction cup is easily stuck due to tilt during insertion. If the through hole for loading the reaction cup and the reaction cup adopt a transition fit, higher positioning accuracy is required, resulting in an increase in the required manufacturing cost.

[0044] Among them, the problem of cup jamming mainly lies in that the inclined reaction cup will contact the opening walls of the upper and lower end surfaces of the through hole, and the reaction cup and the through hole form a triangular structure, so that the reaction cup is stuck in the through hole, thereby affecting the normal escape of the reaction cup from the through hole.

[0045] In order to reduce manufacturing costs, in this application, the through hole and the reaction cup are accommodated in a clearance fit manner. In order to alleviate the problem of cup jamming. The following solution is provided in this application. The embodiments of the utility model are described in detail below in conjunction with the accompanying drawings.

[0046] refer to Figure 1-3 As shown, in some embodiments of the present application, the present application provides a tray for storing reaction cups, comprising: a tray body 11, a plurality of through holes 13 and a plurality of raised positioning parts are arranged on the tray body 11, the plurality of positioning parts are evenly distributed on the circumference of the hole wall, and the cross-sectional thickness of the positioning parts is less than the distance between the inner wall of the through hole 13 and the outer wall of the reaction cup. Specifically, the plurality of positioning parts surround the inner side of the plurality of positioning parts to form a cavity for accommodating the reaction cup. The reaction cup is inserted into the through hole 13, and the plurality of positioning parts limit the position of the reaction cup placed in the through hole 13 to achieve the storage of the reaction cup.

[0047] Since the diameter of the cavity formed by the positioning portion is smaller than the diameter of the through hole 13, the positioning portion contacts the reaction cup, which can reduce the tilt angle of the reaction cup, and reduce the probability of the reaction cup contacting the upper and lower end surfaces of the through hole 13, thereby reducing the risk of cup jam. At the same time, the raised positioning portion will reduce the contact area with the reaction cup, so that the friction force is small when grabbing the reaction cup, and the success rate of grabbing is higher.

[0048] In this solution, the positioning part can be a positioning rib 132 or a positioning sphere. The positioning part is the positioning rib 132, and the positioning rib 132 is tangent to the reaction cup. When the positioning part is the positioning sphere, the positioning sphere is in point contact with the reaction cup.

[0049] More specifically, at least three positioning ribs 132 are evenly distributed around the hole wall, and the positioning ribs 132 are tangentially matched with the reaction cup. On the one hand, the support force of the evenly distributed multiple positioning ribs 132 on the reaction cup is evenly distributed around the reaction cup, ensuring that the distance between two adjacent positioning ribs 132 is small, avoiding the reaction cup passing through the gap between two positioning ribs 132 and directly contacting the hole wall surface, resulting in the risk of cup jam.

[0050] The positioning ball is in point contact with the reaction cup. The contact area between the positioning ball and the reaction cup is smaller, which can further reduce the friction on the reaction cup, thereby reducing the insertion and removal resistance of the reaction cup.

[0051] The cross-sectional thickness of the positioning portion and the distance between the inner wall of the through hole 13 and the outer wall of the reaction cup are specifically referred to in Figure 5 As shown, the cross-sectional thickness of the positioning portion is d, the distance between the inner wall of the through hole 13 and the outer wall of the reaction cup is L, d <L。

[0052] Further, the tray body 11 has a front side 111 and a back side 112 opposite to each other, and the through hole 13 is arranged on the front side 111. On the tray, a plurality of through holes are arranged in an array on the tray body 11. Exemplarily, the number of through holes is 11 rows x 14 columns, and the maximum capacity of the tray is 154 holes, that is, the tray can carry a maximum of 154 reaction cups.

[0053] During the actual use of the analytical and testing instrument, two trays are used to alternately load and unload materials, so that the number of through holes 13 opened on the tray body 11 can cover 100-200 holes during actual use. The two trays can be replaced without stopping the analytical and testing instrument, thereby improving the use efficiency of the analytical and testing instrument.

[0054] Specifically, one end of the through hole 13 is a bottom surface 133, and the bottom surface 133 is an end surface close to the back surface 112. One end of the positioning rib 132 is flush with the bottom surface 133, and the other end of the positioning rib 132 is sunken in the through hole 13. When the reaction cup extends into the through hole 13 from the front side 111, due to the gap between the through hole 13 and the reaction cup, there is a margin between the reaction cup and the through hole close to the front side 111, reducing the positioning accuracy requirement, and as the reaction cup extends into the through hole 13, the reaction cup contacts the positioning portion, and the space surrounded by the positioning portion is consistent with or slightly larger than the outer contour of the reaction cup.

[0055] More specifically, combined with Figure 5 As shown, a guide surface is provided on the positioning portion, and the cross-section of the positioning portion is trapezoidal or arc-shaped. In this solution, the space formed by the positioning portion along the axial direction of the through hole 13 is gradually reduced due to the provision of the guide surface. The chamfered surface guides the reaction cup to prevent the reaction cup from colliding with the positioning rib 132 and damaging the positioning rib 132 and / or the reaction cup.

[0056] Furthermore, step surfaces are provided at the upper and lower parts of the through hole 13. The step surfaces are provided to expand the area of ​​the openings at both ends of the through hole 13, thereby increasing the margin for inserting the reaction cup. In addition, the contact between the reaction cup and the opening of the through hole 13 can be reduced, thereby reducing the risk of cup jamming.

[0057] The step surface may be a chamfered surface 131. In this embodiment, the angles where the upper and lower end surfaces of the through hole intersect with the hole wall are rounded to form the chamfered surface 131. In addition to enlarging the area of ​​the openings at both ends of the through hole 13, since the chamfered surface 131 is an inclined surface, the inclined chamfered surface 131 can also guide the reaction cup to extend into the through hole 13, so that the reaction cup can be more easily accommodated.

[0058] In some embodiments of the present application, reference Figure 6 , 7 As shown, a step portion 12 is formed on the side wall of the pallet. The step portion 12 is arranged on the side of the back side 112 of the pallet body 11. In this solution, the area of ​​the back side 112 of the pallet body 11 is smaller than the area of ​​the step portion 12. More specifically, an opening 123 is provided on the other side of the step portion 12 relative to the through hole 13, and the opening 123 cooperates with the pallet body 11. The pallet can extend into the opening 123 of the adjacent pallet through the pallet body 11, thereby realizing the stacking of two pallets.

[0059] Exemplarily, the outer contour of the pallet body 11 may be a rectangle, and the step portion 12 has an opening 123 that is consistent with the outer contour of the pallet body 11. The two pallets being stacked can be stacked after being turned around. In the above embodiment, the two pallets can be stacked after being turned around 180°, making the stacking of the pallets more convenient. It is understandable that the outer contour of the pallet body 11 may also be a symmetrical shape such as an ellipse, a square, an equilateral triangle, etc., so that the pallets can still be stacked after being turned around.

[0060] Furthermore, a gripping unit is provided on the step portion 12. By providing the gripping unit, the operator's fulcrum is increased, so that the operator can grasp the tray. In this solution, the gripping unit can be a waist groove 121, and the waist groove 121 is opened on the circumferential side of the step portion 12. The number of waist grooves 121 is at least two, and the two waist grooves 121 are opened on two opposite side surfaces of the step portion 12.

[0061] The operator can ensure the stability of the tray by using the waist grooves 121 on both sides of the step portion 12 as the fulcrum. It should be noted that in this solution, the gripping unit includes but is not limited to the waist groove 121, and common through holes or protrusions can also be used as gripping units.

[0062] Furthermore, a positioning notch 122 is provided on the lower part of the step portion 12, and the positioning notch 122 extends to the side with the opening 123. The positioning notch 122 is a trapezoidal notch provided on the step portion 12. The positioning notch 122 is used to locate the position of the tray on the analytical and testing instrument, wherein a positioning protrusion matching the position of the positioning notch 122 is provided on the analytical and testing instrument, and the positioning notch 122 is inserted into the positioning protrusion to achieve the positioning of the tray and the analytical and testing instrument.

[0063] Specifically, the positioning notches 122 are evenly distributed on the circumferential side of the step portion 12. The positioning notches 122 can be used as positioning marks for the pallet. By observing the position of the positioning notches 122, the pallet can be positioned to ensure that the position of the pallets stacked together is accurate. In a specific embodiment, the stacked pallets are observed by an operator, and the position of the positioning notches 122 on the pallets on the same side is compared to determine the palletizing condition of the pallets. Accurate palletizing is characterized by the positioning notches 122 on the pallets on the same side being located on or approximately located on the same central vertical line.

[0064] At the same time, the positioning notch 122 can also serve as a gripping unit on the step portion 12, and the operator can grab a single pallet by snapping into the positioning notch 122. The positioning notch 122 in this solution can achieve the purpose of locating the position of the stacking pallet and can also achieve the purpose of serving as a gripping unit.

[0065] It should be pointed out that the arrangement of the positioning notches 122 is related to the distribution of the positioning protrusions on the analytical and testing instruments. The positioning notches 122 can also be staggered to ensure the positioning purpose while preventing mistakes.

[0066] Furthermore, combined with Figure 4 As shown, a raised skirt 124 is provided on the circumferential side of the step portion 12, and the skirt 124 is provided near the side where the opening 123 is provided. The skirt 124 can effectively protect the pallet from friction or collision during transportation.

[0067] At the same time, the skirt 124 can also serve as a gripping unit on the step portion 12, and the operator can grasp a single pallet by holding the skirt 124. The skirt 124 in this solution can not only effectively protect the pallet, but also serve as a gripping unit.

[0068] Existing pallet manufacturing methods usually use injection molding. A glue injection port 14 is provided on the front side 111 of the pallet body 11. Specifically, the number of the glue injection ports 14 is at least two, and the glue injection ports 14 are distributed on the front side 111, and in order to avoid the through holes, the glue injection ports 14 are provided between the through holes. The glue injection port 14 is much smaller than the pallet, so that the flow rate of the plastic poured by a single glue injection port 14 is limited, and the problem of incomplete flow of the hot melt plastic is prone to occur, resulting in an incomplete poured pallet. In this solution, multiple glue injection ports 14 pour hot melt plastic at the same time, and the glue injection ports 14 are evenly arranged to ensure that the plastic fills the entire cavity and ensure the preparation efficiency of the pallet.

[0069] In some embodiments of the present application, the interior of the tray body 11 is hollow, and the through hole 13 is integrally formed on the front surface 111, and the through hole 13 is located in the hollow cavity of the tray body 11. Through the above design, the interior space of the tray body 11 is large, that is, less plastic is required during injection molding, which reduces the weight of the tray and also reduces the manufacturing cost.

[0070] At the same time, since the amount of plastic required for injection molding is small, the cavity of the molding mold is actually smaller, which makes it easier to fill the mold cavity with plastic during the pouring process, ensuring the efficiency of pallet preparation.

[0071] Furthermore, in order to ensure the stability of the tray body 11, adjacent through holes 13 located in the hollow cavity of the tray body 11 are also connected by a connecting portion. Figure 4 As shown, a light-weight hole 113 is further provided on the tray body 11 between two adjacent through holes. Specifically, the light-weight hole 113 is provided on the connecting portion.

[0072] By providing the lightweight hole 113, the wall thickness of the connection part is consistent with the wall thickness of the through hole 13, ensuring uniform wall thickness and avoiding different shrinkage due to different wall thicknesses, which affects the connection between the through hole 13 and the connection part. In addition, the lightweight hole 113 can also reduce the weight of the pallet and reduce the manufacturing cost. In this solution, the lightweight hole 113 can be a blind hole, and the thickness from the bottom of the lightweight hole 113 to the front face 111 is consistent with the wall thickness of the connection part and the wall thickness of the through hole 13.

[0073] The above embodiments are used to further illustrate the present invention, but the present invention is not limited to these specific implementations. Any modification, equivalent replacement and improvement made within the spirit and principle of the present invention should be understood to be within the protection scope of the present invention.

Claims

1. A tray for storing reaction cups, comprising a tray body (11), characterized in that: The tray body (11) is provided with a plurality of through holes (13) for storing reaction cups, the inner wall of the through hole (13) is provided with a plurality of positioning parts, and the cross-sectional thickness of the positioning parts is smaller than the distance between the inner wall of the through hole (13) and the outer wall of the reaction cup.

2. The pallet according to claim 1, characterized in that: The number of the positioning parts is at least three.

3. The pallet according to claim 2, characterized in that: The positioning portions are evenly distributed on the inner wall of the through hole (13).

4. The pallet according to claim 3, characterized in that: The upper and lower parts of the through hole (13) are provided with step surfaces.

5. The pallet according to claim 4, characterized in that: The step surface is a chamfered surface (131).

6. The pallet according to claim 5, characterized in that: The positioning portion is arranged close to the lower part of the through hole (13), and the surface of the positioning portion is tangent to the reaction cup placed in the through hole (13).

7. The pallet according to claim 1, characterized in that: A plurality of positioning notches (122) are provided on the side wall of the tray.

8. The pallet according to claim 7, characterized in that: The plurality of positioning notches (122) are evenly distributed on the side wall of the tray.

9. The pallet according to claim 8, characterized in that: A raised skirt (124) extends from the side wall of the tray.

10. The pallet according to claim 9, characterized in that A step portion (12) is formed on the side wall of the tray, and the skirt (124) is located at the lower part of the step portion (12).

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