Automatic basket clamping mechanism for pretreatment

Abstract

According to the automatic basket clamping mechanism for pretreatment, the movable clamping plate is arranged to be connected with the reset assembly, and when a sliding block of the reset assembly slides in a first sliding groove, a guide rod can be driven to move in the vertical direction; when the sliding block is located on the side close to the movable clamping plate, the movable clamping plate is located at the high position, and at the moment, the sample frame can be clamped in the clamping groove of the movable clamping plate so that the sample frame can be fixed; when the limitation on the sample frame needs to be relieved, a sliding block is slid by hand to be positioned on one side far away from a movable clamping plate, and at the moment, due to the fixed length of a connecting part, under the action of the sliding block, a guide rod can be driven to move downwards, so that the movable clamping plate is driven to move downwards, and the sample frame is separated from a clamping groove of the movable clamping plate; after the sliding block is loosened, the movable clamping plate returns to the high position under the action of the elastic element, and the sample frame is clamped; the basket mechanism is simple in structure, low in cost and capable of effectively and conveniently clamping or releasing the sample frame.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of biochemical analysis detection, and particularly relates to an automatic clamping basket mechanism for pretreatment. BACKGROUND

[0002] The pretreatment basket mechanism is an important component of a biochemical analysis instrument. In the prior art, some pretreatment basket mechanisms use a motor to control and clamp a sample rack. The basket mechanism has a clamping plate that can move up and down at the back of the basket. The sample rack is clamped on the clamping plate and cannot move forward and backward. When the sample rack needs to be removed, the motor drives the clamping plate to move downward. The sample rack is clamped firmly in the basket mechanism, and the sample rack cannot move when the basket is removed, so the operation is stable. However, each basket mechanism needs to be equipped with a motor and a transmission mechanism, which makes the structure of the basket mechanism complex, the cost is high, and a corresponding control program also needs to be configured, which increases the hidden cost. CONTENT OF THE UTILITY MODEL

[0003] To solve the above technical problems, the present application provides an automatic clamping basket mechanism for pretreatment, which comprises a basket. The basket comprises a bottom plate, and two sides of the bottom plate are respectively provided with handles. A plurality of partition plates are arranged between the two handles on the bottom plate, and a containing slide for containing a sample rack is formed between adjacent two partition plates. One end of the partition plate is provided with a movable clamping plate. The two ends of the movable clamping plate are respectively fixedly connected with a reset assembly. A plurality of clamping grooves with upward openings are arranged on the movable clamping plate. The reset assembly comprises a connecting seat, a fixed seat, an elastic element, a guide rod, a grooved roller, a sliding block and a connecting part. The fixed seat is fixedly connected to the bottom plate, and the connecting seat is fixedly connected to the movable clamping plate. The top end of the guide rod is fixedly connected to the connecting seat, and the guide rod extends below the fixed seat and extends below the bottom plate. A first connecting hole is arranged at one end of the guide rod below the bottom plate. The elastic element is sleeved on the guide rod, and the two ends of the elastic element are respectively in abutment with the connecting seat and the fixed seat. The grooved roller is rotatably arranged below the bottom plate through a support. A first sliding groove is arranged on the bottom plate. The sliding block is slidably arranged in the first sliding groove. A second connecting hole is arranged at one end of the sliding block below the bottom plate. One end of the connecting part is connected with the first connecting hole, the middle part is contained in the groove of the grooved roller, and the other end is connected with the second connecting hole.

[0004] In some embodiments of the present application, a base assembly is further included, which comprises a base body and a plug-in part arranged on the base body. The plug-in part has an inclined top surface.

[0005] In some embodiments of this application, the slider has a second groove and an inclined surface adapted to the top surface of the insertion part. The second groove is arranged around the circumferential surface of the slider, and the inclined surface extends from the bottom surface of the slider to the second groove. When the basket is placed on the base, the insertion part can cut into the first groove along the inclined surface of the slider, so that the slider moves away from the movable plate.

[0006] In some embodiments of this application, a limiting block is further provided on the lower surface of the base plate, surrounding the first sliding groove, and the limiting block has a beveled guide surface.

[0007] In some embodiments of this application, a baffle is also included, which is disposed on the outside of the movable card plate and spaced apart from the movable card plate.

[0008] In some embodiments of this application, the line connecting the first connecting hole and the second connecting hole is on a straight line with the tangent of the groove of the grooved pulley.

[0009] In some embodiments of this application, the base plate has a first U-shaped mounting groove facing the direction of the movable plate; the bottom of the partition has a snap-fit ​​part, which is snapped into the first U-shaped mounting groove.

[0010] In some embodiments of this application, a fixing plate is further included, which is fixedly attached to the bottom of the base plate. The fixing plate has a second U-shaped mounting groove adapted to the first U-shaped mounting groove, and the snap-fit ​​part is snapped into the second U-shaped mounting groove.

[0011] In some embodiments of this application, the grooved roller is a V-groove pulley.

[0012] In some embodiments of this application, the base body protrudes towards the center of the base plate to form a first limiting part, and a second limiting part is provided on one side of the first sliding groove. The second limiting part is fixed to the lower surface of the base plate. When the basket mechanism is placed on the base, the first limiting part and the second limiting part can limit and guide each other.

[0013] Compared with the prior art, the automatic clamping basket mechanism for pretreatment has the following advantages and beneficial effects: the automatic clamping basket mechanism for pretreatment is provided, the movable clamping plate is connected with the reset assembly, when the sliding block of the reset assembly slides in the first sliding groove, the guiding rod can be driven to move in the vertical direction; when the sliding block is located on the side close to the movable clamping plate, the movable clamping plate is located at the high position, at this time, the sample rack can be clamped in the clamping groove of the movable clamping plate, so as to fix the sample rack; when it is needed to release the restriction on the sample rack, the sliding block is slid by hand, and the sliding block is located on the side away from the movable clamping plate, at this time, since the length of the connecting portion is fixed, the guiding rod can be driven to move downward under the action of the sliding block, and then the movable clamping plate is driven to move downward, so that the sample rack is separated from the clamping groove of the movable clamping plate; after the sliding block is loosened, the movable clamping plate returns to the high position under the action of the elastic element, and the sample rack is clamped; the basket mechanism has simple structure and low cost, and can effectively and conveniently clamp or release the sample rack.

[0014] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory and are not restrictive of the present text. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings, which form a part of the present text, are intended to provide further understanding of the present text and are used to explain the illustrative embodiments of the present text and their descriptions, and do not constitute improper limitations on the present text. In the drawings:

[0016] Figure 1 is a structural schematic view of the automatic clamping basket for pretreatment provided by an exemplary embodiment of the present application;

[0017] Figure 2 is a front view of the automatic clamping basket for pretreatment provided by an exemplary embodiment of the present application;

[0018] Figure 3 is a bottom view of the automatic clamping basket for pretreatment provided by an exemplary embodiment of the present application;

[0019] Figure 4 is a structural schematic view of the automatic clamping basket mechanism for pretreatment provided by an exemplary embodiment of the present application;

[0020] Figure 5 is a structural schematic view of the base assembly and the sliding block provided by an exemplary embodiment of the present application;

[0021] Figure 6 is a front view of the base assembly and the sliding block provided by an exemplary embodiment of the present application.

[0022] In the drawings:

[0023] 10, basket; 20, base assembly; 30, sample rack;

[0024] 101, bottom plate; 1011, first sliding groove; 102, handle; 103, partition plate; 104, accommodating slide; 105, movable clamping plate; 106, reset assembly; 1061, connecting seat; 1062, guide rod; 1063, elastic element; 1064, fixing seat; 1065, grooved roller; 1066, sliding block; 1066a, second connecting hole; 1066b, second sliding groove; 1066c, inclined surface; 1067, connecting part; 107, limiting block; 108, baffle; 109, fixed plate; 110, second limiting part; 201, base body; 202, plug-in part; 203, first limiting part. DETAILED DESCRIPTION

[0025] To make the objects, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application. It should be noted that, the embodiments in the present application and the features in the embodiments can be combined with each other in any manner without conflict.

[0026] The pre-treatment basket mechanism is an important component in biochemical analysis instruments. In the prior art, some pre-treatment basket mechanisms use a motor to control and clamp a sample rack. The basket has a clamping plate that can move up and down at the back of the basket. The sample rack is clamped on the clamping plate and cannot move forward and backward. When the sample rack needs to be removed, the motor drives the clamping plate to move downward. The sample rack is clamped firmly in the basket mechanism, and the sample rack will not shift when the basket is removed, so the operation is stable. However, each basket mechanism needs to be equipped with a motor and a transmission mechanism, which leads to a complex structure of the basket mechanism and a high cost. In addition, a corresponding control program needs to be configured, which increases the hidden cost.

[0027] Based on this, an exemplary embodiment of this application provides an automatic clamping basket mechanism for pretreatment. By connecting a movable clamping plate to a reset assembly, when the slider of the reset assembly slides in the first groove, it drives the guide rod to move vertically. When the slider is located near the movable clamping plate, the movable clamping plate is at a high position, allowing the sample holder to be clamped in the slot of the movable clamping plate for fixation. When it is necessary to release the restriction on the sample holder, the slider is slid by hand, moving it away from the movable clamping plate. Since the length of the connecting part is fixed, the slider's action drives the guide rod downwards, which in turn drives the movable clamping plate downwards, causing the sample holder to disengage from the slot of the movable clamping plate. When the slider is released, the movable clamping plate returns to its high position under the action of the elastic element, clamping the sample holder. This basket mechanism has a simple structure and low cost, effectively and conveniently clamping or releasing the sample holder.

[0028] An exemplary embodiment of this application provides an automatic clamping basket mechanism for pre-processing, such as... Figures 1 to 4 As shown, the basket mechanism includes a basket 10 and a base assembly 20, which are mutually compatible. Figure 1 and 2 As shown, the basket 10 includes a base plate 101, with handles 102 on both sides of the base plate 101. The two handles 102 are symmetrically arranged and fixed to the base plate 101 at the bottom, with the tops bent inwards to form the handle portions. On the base plate 101, between the two handles 102, multiple partitions 103 are arranged at intervals, forming a receiving slide 104 for accommodating the sample rack 30 between adjacent partitions 103; a movable retaining plate 105 is provided at one end of each partition 103; as shown... Figure 3 As shown, a first U-shaped mounting groove facing the movable mounting plate 105 is formed on one end of the base plate 101, and a long strip mounting groove is formed on the other end; the bottom of the partition plate 103 forms two snap-fit ​​parts, one snap-fit ​​part snaps into the first U-shaped mounting groove, and the other snap-fit ​​part snaps into the long strip mounting groove. A fixing plate 109 is fixedly connected to the bottom of the base plate 101, and a second U-shaped mounting groove adapted to the first U-shaped mounting groove is formed on the fixing plate 109, and the snap-fit ​​part snaps into the second U-shaped mounting groove. A baffle 108 is set on the outside of the movable mounting plate 105 and is spaced apart from the movable mounting plate 105. Both ends of the movable plate 105 are fixedly connected to the reset assembly 106. The movable plate 105 is provided with multiple sets of upward-facing slots. One end of the sample holder 30 is provided with a locking plate. When the movable plate 105 moves upward, the locking plate on the sample holder 30 can be locked in the slot of the movable plate 105, thus fixing the sample holder 30 and preventing it from slipping out. Preferably, the opening size of the slot is larger than the lower size to facilitate the locking of the sample holder 30 in the slot.

[0029] like Figure 2As shown, the reset assembly 106 comprises a connecting seat 1061, a fixing seat 1064, an elastic element 1063, a guide rod 1062, a grooved roller 1065, a sliding block 1066 and a connecting part 1067; the fixing seat 1064 is fixedly connected to the bottom plate 101, and the connecting seat 1061 is fixedly connected to the movable clamping plate 105; the top end of the guide rod 1062 is fixedly connected to the bottom surface of the connecting seat 1061, and penetrates through the fixing seat 1064 and extends to below the bottom plate 101, and a first connecting hole is arranged on the end of the guide rod 1062 below the bottom seat; the elastic element 1063 is sleeved on the guide rod 1062, and the two ends thereof are respectively abutted against the connecting seat 1061 and the fixing seat 1064, and the elastic element 1063 is preferably a spring; the grooved roller 1065 is a V-shaped groove pulley, and the grooved roller 1065 is rotatably arranged below the bottom plate 101 through a support; the first sliding groove 1011 is arranged on the bottom plate 101; the sliding block 1066 is slidingly arranged in the first sliding groove 1011, and a second connecting hole 1066a is arranged on one end of the sliding block 1066 below the bottom plate 101; the connecting part 1067 is preferably a non-elastic wire-like connecting member such as a steel wire, one end of the connecting part 1067 is connected to the first connecting hole, the middle part is accommodated in the groove of the grooved roller 1065, and the other end is connected to the second connecting hole 1066a. In order to facilitate the sliding of the connecting part 1067 in the groove of the grooved pulley, the line connecting the first connecting hole and the second connecting hole 1066a is on the same straight line as the tangent of the groove of the grooved pulley. When the sliding block 1066 slides in the first sliding groove 1011, the guide rod 1062 can be driven to move in the vertical direction; when the sliding block 1066 is located on the side close to the movable clamping plate 105, the movable clamping plate 105 is at the high position, at this time, the sample rack 30 can be clamped in the clamping groove of the movable clamping plate 105, so as to fix the sample rack 30; when it is needed to release the restriction on the sample rack 30, the sliding block 1066 is slid by hand, so that the sliding block 1066 is located on the side away from the movable clamping plate 105, at this time, due to the fixed length of the connecting part 1067, the guide rod 1062 can be driven to move downward under the action of the sliding block 1066, and then the movable clamping plate 105 is driven to move downward, so that the sample rack 30 is separated from the clamping groove of the movable clamping plate 105, at this time, the sample rack 30 can be taken away from the basket 10; after the sliding block 1066 is loosened, the movable clamping plate 105 returns to the high position under the action of the elastic element 1063, and clamps the sample rack 30; the basket mechanism has simple structure and low cost, and can effectively and conveniently clamp or release the sample rack 30.

[0030] As Figure 5 and 6As shown, the base assembly 20 comprises a base body 201 and a plug-in part 202 provided on the base body 201, the plug-in part 202 has an inclined top surface. The slider 1066 is formed with a second sliding groove 1066b and an inclined surface 1066c matched with the top surface of the plug-in part 202, the second sliding groove 1066b is arranged around the circumferential surface of the slider 1066, the width of the second sliding groove 1066b is matched with the thickness of the bottom plate 101, the bottom plate 101 is slidingly arranged in the second sliding groove 1066b so as to guide the movement of the slider 1066; the inclined surface 1066c extends from the bottom surface of the slider 1066 to the second sliding groove 1066b; when the basket 10 is placed on the base, the plug-in part 202 can cut into the first sliding groove 1011 along the inclined surface 1066c of the slider 1066, so that the slider 1066 moves away from the movable clamping plate 105, the guide rod 1062 is driven to move downward, and then the movable clamping plate 105 is driven to move downward, so that the sample rack 30 is separated from the clamping groove of the movable clamping plate 105, at this time, the sample rack 30 can be taken away from the basket 10. When the basket 10 is lifted, the basket 10 is separated from the base assembly 20, under the action of the elastic element 1063, the slider 1066 is driven to move towards the movable clamping plate 105, the guide rod 1062 moves upward, and the movable clamping plate 105 returns to the high position and clamps the sample rack 30.

[0031] In order to facilitate the cooperation between the basket 10 and the base assembly 20, as shown in Figure 3 and 5 As shown, the lower surface of the bottom plate 101 is further provided with a limiting block 107 arranged around the first sliding groove 1011, the limiting block 107 has an obliquely cut guiding surface; the base body 201 protrudes towards the center of the bottom plate 101 to form a first limiting part 203, one side of the first sliding groove 1011 is provided with a second limiting part 110, the second limiting part 110 is fixedly connected to the lower surface of the bottom plate 101; when the basket is placed on the base, the first limiting part 203 and the second limiting part 110 can limit and guide each other.

[0032] In this application, the terms "comprising", "containing" or any other variant thereof are intended to cover non-exclusive inclusion, so that the articles or devices comprising a series of elements not only include those elements, but also include other elements not explicitly listed or inherent to such articles or devices. Without more limitations, the elements defined by the statement "comprising" do not exclude the presence of other identical elements in the articles or devices comprising the elements.

[0033] While the preferred embodiments of the application have been described, additional variations and modifications can be made to these embodiments by those skilled in the art once they have the benefit of the present disclosure without departing from the spirit and scope of the application. Accordingly, it is intended that the appended claims include all such modifications and variations as fall within the scope of the present application.

[0034] Obviously, numerous modifications and variations of the present application are possible in light of the above teachings. It is therefore to be understood that within the scope of the appended claims and their equivalents, the application can be practiced otherwise than as specifically described.

Claims

1. An automatic chucking basket mechanism for pre-treatment, characterized by, The basket comprises a bottom plate, two sides of the bottom plate are respectively provided with handles, a plurality of partitions are arranged on the bottom plate and spaced between the two handles, adjacent two partitions form a containing slide containing a sample holder, one end of the partition is provided with a movable clamping plate, two ends of the movable clamping plate are respectively fixedly connected with a reset assembly, a plurality of clamping grooves with upward opening are arranged on the movable clamping plate, the reset assembly comprises a connecting seat, a fixed seat, an elastic element, a guide rod, a grooved roller, a sliding block and a connecting part, the fixed seat is fixedly connected on the bottom plate, the connecting seat is fixedly connected with the movable clamping plate, the top end of the guide rod is fixedly connected with the connecting seat, and the guide rod extends to below the bottom plate through the fixed seat, one end of the guide rod below the bottom plate is provided with a first connecting hole, the elastic element is sleeved on the guide rod, and two ends of the elastic element are respectively abutted with the connecting seat and the fixed seat, the grooved roller is rotatably arranged below the bottom plate through a support, a first sliding groove is arranged on the bottom plate, the sliding block is slidably arranged in the first sliding groove, one end of the sliding block below the bottom plate is provided with a second connecting hole, one end of the connecting part is connected with the first connecting hole, the middle part is contained in the groove of the grooved roller, and the other end is connected with the second connecting hole.

2. The automatic chucking basket mechanism for pre-treatment according to claim 1, characterized by, The base assembly further comprises a base body and a plug-in part provided on the base body, and the plug-in part has an inclined top surface.

3. The automatic chucking basket mechanism for pre-treatment according to claim 2, characterized by, A second sliding groove and an inclined surface matched with the top surface of the plug-in part are formed on the sliding block, the second sliding groove is arranged around the circumferential surface of the sliding block, and the inclined surface extends from the bottom surface of the sliding block to the second sliding groove; when the basket is placed on the base, the plug-in part can cut into the first sliding groove along the inclined surface of the sliding block, so that the sliding block moves away from the movable clamping plate.

4. The automatic basket chucking mechanism for pre-treatment according to claim 1, characterized by, A limiting block is further arranged on the lower surface of the bottom plate and surrounds the first sliding groove, and the limiting block has an obliquely cut guide surface.

5. The automatic basket chucking mechanism for pre-treatment according to claim 1, characterized by, A baffle is further arranged outside the movable clamping plate and is spaced apart from the movable clamping plate.

6. The automatic basket chucking mechanism for pre-treatment according to claim 1, wherein The line connecting the first connecting hole and the second connecting hole is on the same straight line as the tangent line of the groove of the grooved pulley.

7. The automatic basket chucking mechanism for pre-treatment according to claim 1, characterized by, A first U-shaped mounting groove is formed on the bottom plate and faces the movable clamping plate, and a clamping part is formed at the bottom of the partition and clamped in the first U-shaped mounting groove.

8. The automatic basket chucking mechanism for pre-treatment according to claim 7, characterized by, A fixed plate is further fixedly connected below the bottom plate, a second U-shaped mounting groove matched with the first U-shaped mounting groove is formed on the fixed plate, and the clamping part is clamped in the second U-shaped mounting groove.

9. The automatic basket chucking mechanism for pre-treatment according to claim 1, characterized by, The grooved roller is a V-shaped groove pulley.

10. The automatic basket chucking mechanism for pre-treatment according to claim 2, characterized by, The base body protrudes towards the center of the bottom plate to form a first limiting part, a second limiting part is arranged on one side of the first sliding groove and is fixedly connected to the lower surface of the bottom plate, and when the basket mechanism is placed on the base, the first limiting part and the second limiting part can limit and guide each other.

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