Reagent cold storage device, bin opening mechanism and guide rail assembly

By designing the combination of slide base plate, guide shaft, slider and rolling parts, the problem of poor bearing capacity of micro guide rails in reagent refrigeration devices is solved, and the compactness, low cost and impact resistance of guide rail components are improved, ensuring the opening The stability and long life of the warehouse organization.

CN222123613UActive Publication Date: 2024-12-06AUTOBIO LABTEC INSTR CO LTD
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Patent Information

Application Number
CN202420298286.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-02-18
Publication Date
2024-12-06
Estimated Expiration
2034-02-18

AI Technical Summary

Technical Problem

In the existing reagent refrigeration device, the micro guide rail has poor load-bearing capacity, small stroke, high processing accuracy and high cost, which leads to the guide rail being easily damaged and the bin door cannot be fully opened.

Method used

A guide rail assembly including a slide base plate, a guide shaft, a slider and a roller are designed. The slider can rotate relative to the guide shaft. The slider acts as a limiting mechanism to enhance impact resistance and reduce the requirements for machining accuracy. And the stability and durability of the guide rail is improved by the combination of rolling parts and locking parts.

Benefits of technology

It effectively overcomes the sliding stagnation caused by lateral stress, improves the movement stability and service life of the opening mechanism, and reduces production costs, achieving the compactness, low cost and impact resistance of the rail components.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of in vitro diagnostic equipment, and discloses a reagent refrigerating device, a bin opening mechanism and a guide rail assembly, the guide rail assembly comprises a sliding seat bottom plate, a sliding seat bottom plate, a sliding seat bottom plate, a bin opening mechanism, a bin opening mechanism and a bin opening mechanism, and the sliding seat bottom plate comprises a bottom plate connected with the upper end face of a refrigerating rear plate and sliding seats arranged at the two ends of the bottom plate; the guide shaft is rotatably mounted between the sliding seats at the two ends; the sliding block is slidably arranged outside the guide shaft in a sleeving mode, and the upper end face of the sliding block is used for being connected with a refrigeration cover plate; the rolling piece is arranged on the lower end face of the sliding block and used for making contact with the bottom plate, and when the sliding block is not subjected to external force, the upper end face of the sliding block is parallel to the bottom plate. The sliding block can rotate relative to the guide shaft, lateral stress caused by a cold storage cover plate bending angle error, an auxiliary supporting height error and a cold storage top plate machining error can be overcome, and sliding clamping stagnation of the sliding block caused by the lateral force is avoided. The sliding seat serves as a limiting mechanism of the sliding block, the impact bearing capacity is higher, damage is not prone to occurring, the movement stability and durability of the guide rail assembly are effectively protected, and the service life is longer.
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Description

Technical Field

[0001] The utility model relates to the technical field of in vitro diagnostic equipment, and more specifically, to a guide rail assembly. In addition, the utility model also relates to an opening mechanism including the guide rail assembly and a reagent refrigeration device including the opening mechanism. Background Art

[0002] Reagent refrigeration devices are used to store reagents in a low-temperature environment suitable for reagent storage and are widely used in in vitro diagnostic equipment such as fully automatic biochemical analyzers and chemiluminescence immunoassay analyzers.

[0003] For existing reagent refrigeration devices, please refer to Figure 1 and Figure 2 It mainly includes a micro guide rail 01 arranged on the upper end surface of the refrigerated rear plate and a power mechanism 20 for driving the refrigerated cover 103 to move left and right. When the power mechanism 20 is working, the refrigerated cover 103 drives the slider of the micro guide rail 01 to slide left and right relative to the guide rail, thereby realizing the opening and closing of the warehouse door.

[0004] The limit parts of the above-mentioned micro guide rail 01 are plastic parts with poor load-bearing capacity and are easily damaged when subjected to force under abnormal conditions; the stroke of the micro guide rail 01 is small, which limits the opening and closing stroke of the warehouse door, resulting in some warehouse doors being unable to be fully opened; the micro guide rail 01 has high requirements on processing accuracy and installation accuracy, is costly and is not easy to assemble.

[0005] In summary, how to provide a guide rail assembly with low cost and not prone to damage is a problem that needs to be urgently solved by those skilled in the art. Utility Model Content

[0006] In view of this, the purpose of the utility model is to provide a guide rail assembly with a compact structure, low cost, stronger impact resistance and less prone to damage.

[0007] In addition, the utility model also provides an opening mechanism including the guide rail assembly and a reagent refrigeration device including the opening mechanism.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A guide rail assembly, used for an opening mechanism of a reagent refrigeration device, comprising:

[0010] The sliding seat bottom plate comprises a bottom plate for connecting with the upper end surface of the refrigerated rear plate and sliding seats arranged at both ends of the bottom plate;

[0011] A guide shaft is rotatably mounted between the slide seats at both ends;

[0012] A slider is slidably sleeved outside the guide shaft, and the upper end surface of the slider is used to connect with the refrigeration cover plate;

[0013] The rolling element is arranged on the lower end surface of the slider and is used for contacting the bottom plate. When the slider is not subjected to external force, the upper end surface of the slider is parallel to the bottom plate.

[0014] Preferably, the sliding block comprises a rotating portion for connecting to the guide shaft and a connecting portion for connecting to the refrigerated cover plate, and the length of the rotating portion is smaller than the length of the connecting portion.

[0015] Preferably, the cross-sectional shape and size of the rotating portion are the same as the cross-sectional shape and size of the sliding seat.

[0016] Preferably, a mounting hole for mounting the rolling element is provided on the side surface of the connecting portion, and the rolling element is installed in the mounting hole through a locking element.

[0017] Preferably, the rolling element includes a ball and a miniature bearing.

[0018] Preferably, a positioning portion is provided at the end of the guide shaft, one end of the guide shaft abuts against the slide seat through the positioning portion, and the other end of the guide shaft is sleeved with a retaining ring, which is arranged on the outside of the slide seat at the other end.

[0019] A warehouse opening mechanism comprises a power mechanism for driving a refrigerated cover plate to move left and right and a guide rail assembly as described in any one of the above items, wherein the input end of the power mechanism is connected to a refrigerated rear plate, and the output end of the power mechanism is connected to a lower end surface of the refrigerated cover plate.

[0020] Preferably, the power mechanism includes an opening motor, a driving gear and a rack, the driving gear is sleeved on the output shaft of the opening motor, the rack is arranged on the lower end surface of the refrigerated cover, and the rack is meshed with the driving gear.

[0021] A reagent refrigeration device comprises a reagent chamber body and any one of the chamber opening mechanisms described above.

[0022] The guide rail assembly provided by the utility model has a slider that can rotate relative to the guide shaft, which can overcome the lateral force caused by the bending angle error of the refrigerated cover plate, the height error of the auxiliary support and the processing error of the refrigerated top plate, and avoids the lateral force causing the slider to slide and get stuck, thereby affecting the movement of the opening mechanism. At the same time, the processing accuracy requirements for the matching parts such as the refrigerated cover plate are relatively low, thereby reducing the production cost of the matching parts.

[0023] The slide seat can be used as a limiting mechanism for the slider. Compared with the plastic limiting parts of the micro guide rail, the slide seat has a stronger impact bearing capacity and is not easy to be damaged. It effectively protects the movement stability and durability of the guide rail assembly and has a longer service life.

[0024] In addition, the utility model also provides an opening mechanism including the guide rail assembly and a reagent refrigeration device including the opening mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0026] Figure 1 It is a structural schematic diagram of the opening mechanism in the prior art;

[0027] Figure 2 for Figure 1 Schematic diagram of the structure of the medium and micro guide rail;

[0028] Figure 3 A schematic structural diagram of a specific embodiment of the guide rail assembly provided by the utility model;

[0029] Figure 4 for Figure 3 Explosion diagram of

[0030] Figure 5 This is a schematic diagram of the installation of the guide rail assembly;

[0031] Figure 6 This is a schematic diagram of the structure of the reagent refrigeration device provided by the utility model;

[0032] Figure 7 for Figure 6 Explosion diagram.

[0033] Figure 1-Figure 7 middle:

[0034] 01 is a micro guide rail, 10 is a reagent compartment body, 101 is a refrigerated top plate, 1011 is an auxiliary support, 102 is a refrigerated back plate, 103 is a refrigerated cover plate, 104 is a cover plate foam, 20 is a power mechanism, 201 is a driving gear, 202 is a rack, 30 is a guide rail assembly, 301 is a slide base plate, 302 is a guide shaft, 303 is a slider, 304 is a micro bearing, 305 is a locking screw, and 306 is a retaining ring. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0036] The core of the utility model is to provide a guide rail assembly with compact structure, low cost, stronger impact resistance and less prone to damage.

[0037] In addition, the utility model also provides an opening mechanism including the guide rail assembly and a reagent refrigeration device including the opening mechanism.

[0038] The guide rail assembly 30 provided by the utility model is used for the opening mechanism of the reagent refrigeration device, and includes:

[0039] The sliding seat bottom plate 301 includes a bottom plate for connecting with the upper end surface of the refrigerated rear plate 102 and sliding seats arranged at both ends of the bottom plate;

[0040] The guide shaft 302 is rotatably mounted between the slide seats at both ends;

[0041] The slider 303 is slidably mounted outside the guide shaft 302, and the upper end surface of the slider 303 is used to connect with the refrigeration cover plate 103;

[0042] The rolling element is disposed on the lower end surface of the slider 303 and is used to contact the bottom plate. When the slider 303 is not subjected to external force, the upper end surface of the slider 303 is parallel to the bottom plate.

[0043] Among them, the sliding seat base plate 301 includes a base plate and sliding seats arranged at both ends of the base plate. The base plate is detachably connected to the refrigerated rear plate 102. In order to enhance the interchangeability of the guide rail assembly 30 with the existing micro guide rail 01, the connection method between the base plate and the refrigerated rear plate 102 is the same as the connection method between the micro guide rail 01 and the refrigerated rear plate 102, and the number, size and distribution of the connecting parts are the same.

[0044] For example, Figure 3 The middle sliding seat bottom plate 301 is connected to the refrigerated rear plate 102 by fastening bolts, and two fastening bolts are respectively arranged at both ends of the bottom plate.

[0045] The slide seat is not only a rotating shaft mounting seat of the guide shaft 302, but also can be used as a limit mechanism to limit the stroke of the slider 303; the specific structure, shape and size of the slide seat are determined according to the needs of actual production and will not be repeated here.

[0046] The guide shaft 302 can be rotatably installed between the slides at both ends. The two ends of the guide shaft 302 can be axially positioned by structures such as shaft shoulders and retaining rings 306 to prevent the guide shaft 302 from axial movement. The length of the guide shaft 302 is determined according to the spacing between the two slides, and the diameter is determined according to the width of the base plate in actual production and the structure and size of the rolling element, so as to reserve sufficient installation space for the rolling element.

[0047] Preferably, a positioning portion may be provided at the end of the guide shaft 302, one end of the guide shaft 302 abuts against the slide seat through the positioning portion, and a retaining ring 306 is provided at the other end of the guide shaft 302, and the retaining ring 306 is provided on the outside of the slide seat at the other end. Compared with the retaining ring 306 being provided on both sides, assembly is more convenient.

[0048] The positioning portion can be either a positioning shoulder or a rectangular positioning block. The specific shape is not limited as long as it can abut against the outer side surface of the slide seat to achieve axial positioning of the guide shaft 302.

[0049] The slider 303 is slidably mounted on the guide shaft 302, the length l of the slider 303 is less than the length L of the guide shaft 302 between the two slide seats, and the effective stroke d of the guide rail assembly 30 is LI; the slider 303 and the guide shaft 302 are mostly set to be clearance fit, which not only reduces the installation coaxiality requirements for the slide seats at both ends, but also avoids the guide rail assembly 30 from getting stuck due to poor installation coaxiality.

[0050] The upper end surface of the slider 303 is connected to the refrigerated cover 103 so that the power mechanism 20 of the opening mechanism drives the slider 303 to slide along the guide shaft 302 through the refrigerated cover 103 .

[0051] In order to enhance the interchangeability between the guide rail assembly 30 and the existing micro guide rail 01, the connection method between the slider 303 and the refrigerated cover 103 is the same as the connection method between the micro guide rail 01 and the refrigerated cover 103, and the number, size and distribution of the connecting parts are the same.

[0052] Since the slider 303 can rotate relative to the guide shaft 302, in order to prevent the slider 303 from automatically rotating downward under the action of its own weight until the slider 303 abuts against the bottom plate when no external force is applied, a rolling element for contacting the bottom plate is provided at the bottom of the slider 303 so that the upper end surface of the slider 303 can remain level with the bottom plate when no external force is applied.

[0053] The rolling element can be specifically configured as a ball, a miniature bearing 304, etc., for example Figure 3 The miniature deep groove ball bearing in the rolling element can be connected to the slider 303 through a locking member, or the slider 303 can be designed as a split piece. The two parts of the slider can be spliced ​​to form a mounting hole for mounting the rolling element. After the rolling element is installed in the mounting hole, the two parts of the slider 303 are connected using a locking member.

[0054] In this embodiment, the slider 303 can rotate relative to the guide shaft 302, which can overcome the lateral force caused by the bending angle error of the refrigerated cover plate 103, the height error of the auxiliary support 1011 and the processing error of the refrigerated top plate 101, and avoid the lateral force causing the slider 303 to slide and get stuck, thereby affecting the movement of the opening mechanism. At the same time, the processing accuracy requirements for the matching parts such as the refrigerated cover plate 103 are relatively low, thereby reducing the production cost of the matching parts;

[0055] The slide seat can be used as a limiting mechanism for the slider 303. Compared with the plastic limiting part of the micro guide rail 01, the slide seat has a stronger impact bearing capacity and is not easy to be damaged. It effectively protects the movement stability and durability of the guide rail assembly 30 and has a longer service life.

[0056] Based on the above embodiment, the slider 303 can be set to include a rotating part for connecting to the guide shaft 302 and a connecting part for connecting to the refrigerated cover 103, and the length of the rotating part is smaller than the length of the connecting part, that is, the length of the rotating part is smaller than the overall length of the slider 303.

[0057] Please refer to Figure 4 One end of the rotating part is flush with the connecting part, and the other end of the rotating part is recessed inward relative to the connecting part, so that after the end face of the connecting part protrudes from the inner side face of the sliding seat, the sliding seat 303 can continue to slide forward until the end face of the rotating part abuts against the inner side face of the sliding seat, thereby increasing the stroke d of the guide rail assembly 30.

[0058] Of course, both ends of the rotating part may be recessed inwardly relative to the connecting part.

[0059] In this embodiment, by setting the length of the rotating part to be smaller than the length of the connecting part, the stroke d of the guide rail assembly 30 is increased while the structure and size of the slide base plate 301 remain unchanged, and the stroke d of the guide rail assembly 30 can be adjusted by changing the length of the rotating part.

[0060] Preferably, the cross-sectional shape and size of the rotating part can be set to be the same as the cross-sectional shape and size of the sliding seat. The contact area between the slider 303 and the sliding seat is large, which is beneficial to reducing the impact stress on the sliding seat and enhancing the structural stability of the guide rail assembly 30.

[0061] Considering the convenience of processing, the slide seat is usually set as a rectangular slide seat, and the rotating part and the connecting part of the slider 303 are also set as a rectangular structure.

[0062] On the basis of the above embodiment, in order to facilitate the installation of the rolling element, a mounting hole for installing the rolling element may be provided on the side of the connecting portion, and the rolling element is installed in the mounting hole through a locking member.

[0063] When the rolling element is a miniature bearing 304, the mounting hole of the connecting portion is a stepped cylindrical hole, and the miniature bearing 304 is installed in the mounting hole through a locking screw 305 or a locking pin;

[0064] When the rolling element is a ball, the mounting hole of the connecting part includes a vertically arranged ball mounting hole and a horizontally arranged locking mounting hole. The ball mounting hole includes a hemispherical hole at the top and a cylindrical hole at the bottom. The length of the cylindrical hole is smaller than the radius of the ball. During installation, the ball is loaded into the ball mounting hole from the bottom, and the ball is rotated so that the through hole of the ball is opposite to the locking mounting hole. The locking screw 305 or the locking pin shaft passes through the outer locking mounting hole and the through hole of the ball in turn and is connected to the inner locking mounting hole.

[0065] The utility model also provides an opening mechanism including the guide rail assembly 30 disclosed in the above embodiment, including a power mechanism 20 for driving the refrigerated cover 103 to move left and right and the above guide rail assembly 30, the input end of the power mechanism 20 is connected to the refrigerated rear plate 102, and the output end of the power mechanism 20 is connected to the lower end surface of the refrigerated cover 103.

[0066] The power mechanism 20 can be configured as a linear motion mechanism such as an electric push rod, a hydraulic cylinder, a pneumatic cylinder, etc., or can be configured as a transmission mechanism such as a motor and a gear rack assembly, a synchronous belt assembly, etc.

[0067] When it is necessary to extract reagents, the control device of the reagent refrigeration device controls the power mechanism 20 to move, and the power mechanism 20 drives the refrigeration cover plate 103 to move relative to the refrigeration top plate 101, so that the circular hole of the refrigeration cover plate 103 is arranged opposite to the circular hole of the refrigeration top plate 101 at the top and bottom, and the refrigerated reagent can be quantitatively extracted at this time;

[0068] After the reagent extraction is completed, the control device controls the power mechanism 20 to move in the reverse direction, and the power mechanism 20 drives the refrigerated cover 103 to move in the reverse direction relative to the refrigerated top plate 101, so that the circular hole of the refrigerated cover 103 is completely staggered with the circular hole of the refrigerated top plate 101, thereby isolating the outside air and achieving heat preservation of the reagent chamber main body 10.

[0069] On the basis of the above-mentioned embodiment, the structure of the power mechanism 20 is defined. The power mechanism 20 includes an opening motor, a driving gear 201 and a rack 202. The driving gear 201 is sleeved on the output shaft of the opening motor, and the rack 202 is arranged on the lower end surface of the refrigerated cover 103, and the rack 202 is meshed with the driving gear 201.

[0070] The specific material, structure, size and installation method of the driving gear 201 and the rack 202 are determined according to actual production needs with reference to the prior art, and will not be described in detail here.

[0071] When it is necessary to extract reagents, the control device controls the opening motor to rotate counterclockwise, and the driving gear 201 drives the refrigerated cover plate 103 to move relative to the refrigerated top plate 101 through the rack 202, so that the circular hole of the refrigerated cover plate 103 is arranged opposite to the circular hole of the refrigerated top plate 101 above and below, and the refrigerated reagent can be quantitatively extracted at this time;

[0072] After the reagent extraction is completed, the control device controls the opening motor to rotate clockwise, and the active gear 201 drives the refrigerated cover 103 to move in the opposite direction relative to the refrigerated top plate 101 through the rack 202, so that the circular hole of the refrigerated cover 103 is completely staggered with the circular hole of the refrigerated top plate 101, thereby isolating the outside air and achieving heat preservation of the reagent warehouse body 10.

[0073] In addition, the utility model also provides a reagent refrigeration device, which includes a reagent bin body 10 and the bin opening mechanism disclosed in the above embodiment, the reagent bin body 10 is surrounded by a refrigeration bottom plate, a refrigeration top plate 101, a refrigeration front plate, a refrigeration rear plate 102 and refrigeration side plates on both sides, and the refrigeration cover plate 103 is slidably connected to the refrigeration rear plate 102 through a guide rail assembly 30;

[0074] A cover foam 104 is provided above the refrigerated cover 103 , and a refrigerated foam is provided between the refrigerated cover 103 and the refrigerated rear plate 102 , so as to achieve heat preservation of the reagent chamber body 10 .

[0075] For the structures of other parts of the reagent refrigeration device, please refer to the prior art and will not be described in detail in this article.

[0076] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0077] The reagent refrigeration device, the opening mechanism and the guide rail assembly provided by the utility model are introduced in detail above. Specific examples are used in this article to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A guide rail assembly for an opening mechanism of a reagent refrigeration device, characterized in that: include: A sliding seat bottom plate (301) comprising a bottom plate for connecting to the upper end surface of the refrigerated rear plate (102) and sliding seats arranged at both ends of the bottom plate; A guide shaft (302) is rotatably mounted between the slide seats at both ends; A slider (303) is slidably mounted outside the guide shaft (302), and an upper end surface of the slider (303) is used to connect with the refrigeration cover plate (103); The rolling element is arranged on the lower end surface of the slider (303) and is used for contacting the bottom plate. When the slider (303) is not subjected to external force, the upper end surface of the slider (303) is parallel to the bottom plate.

2. The guide rail assembly according to claim 1, characterized in that: The sliding block (303) comprises a rotating portion for connecting to the guide shaft (302) and a connecting portion for connecting to the refrigeration cover plate (103), and the length of the rotating portion is smaller than the length of the connecting portion.

3. The guide rail assembly according to claim 2, characterized in that: The cross-sectional shape and size of the rotating part are the same as those of the sliding seat.

4. The guide rail assembly according to claim 2, characterized in that: A mounting hole for mounting the rolling element is provided on the side surface of the connecting portion, and the rolling element is installed in the mounting hole through a locking element.

5. The guide rail assembly according to any one of claims 1 to 4, characterized in that: The rolling element includes a ball and a miniature bearing (304).

6. The guide rail assembly according to any one of claims 1 to 4, characterized in that: A positioning portion is provided at the end of the guide shaft (302), and one end of the guide shaft (302) is in contact with the slide seat through the positioning portion. The other end of the guide shaft (302) is sleeved with a retaining ring (306), and the retaining ring (306) is arranged on the outer side of the slide seat at the other end.

7. A warehouse opening mechanism, characterized in that: It comprises a power mechanism (20) for driving a refrigerated cover plate (103) to move left and right, and a guide rail assembly (30) according to any one of claims 1 to 6, wherein the input end of the power mechanism (20) is connected to a refrigerated rear plate (102), and the output end of the power mechanism (20) is connected to a lower end surface of the refrigerated cover plate (103).

8. The opening mechanism according to claim 7, characterized in that: The power mechanism (20) comprises a warehouse opening motor, a driving gear (201) and a rack (202); the driving gear (201) is sleeved on the output shaft of the warehouse opening motor; the rack (202) is arranged on the lower end surface of the refrigeration cover plate (103), and the rack (202) is meshed with the driving gear (201).

9. A reagent refrigeration device, characterized in that: It comprises a reagent chamber main body (10) and the chamber opening mechanism as described in claim 7 or 8.