A multi-tiered sample holder for a freeze dryer

Abstract

The utility model discloses a multilayer sample holder for freeze dryer relates to freeze dryer sample holder technical field, the utility model discloses a adjusting mechanism for adjusting component height, and the accumulation mechanism is set above the adjusting mechanism, and the accumulation mechanism is used for the superposition to adjusting mechanism, after the completion of the accumulation mechanism to adjusting mechanism stacking, the utility model discloses a sample stage is set up, specifically is through the rotation of gear to drive gear ring to rotate, makes the gear synchronous rotation of gear ring outside, prevents the sample stage from appearing the inclination when adjusting, makes the sample from sample stage top roll down, and gradually moves upward while the rotation of threaded rod then pushes the sample stage to move through the threaded rod to move to the height of sample stage is adjusted, so that the sample table of each time can according to the size of sample to adjust personally, improves the practicality of device.

Description

Technical Field

[0001] This utility model belongs to the technical field of freeze dryer sample racks, and in particular relates to a multi-layer sample rack for freeze dryers. Background Technology

[0002] In recent years, freeze-drying technology has been increasingly widely used in the fields of biopharmaceuticals and bioenzymes. In order to meet industrial needs, freeze-drying machines are also being used more and more widely in laboratories. Laboratory freeze-drying machines have a relatively simple structure and are generally composed of components such as vacuum pumps, compressors, cold traps, sample racks, and sample covers. They have the advantages of small footprint and low operating costs.

[0003] However, most sample racks in laboratories are one-piece units, and the height of each layer is usually fixed. This means that when freeze-drying taller items, the entire sample rack needs to be replaced. In addition, the height of the protective cover above the freeze dryer is also fixed. In order to ensure that the protective cover can cover the sample rack, the number of layers of the sample rack needs to be reduced, thereby reducing the number of freeze-dried items and reducing work efficiency. To address this, we provide a multi-layer sample rack for freeze dryers. Utility Model Content

[0004] The purpose of this invention is to provide a multi-layer sample rack for a freeze dryer. As the threaded rod rotates, it gradually moves upwards, pushing the sample stage to adjust its height. This allows the sample stage to be automatically adjusted according to the size of the sample each time, improving the device's practicality. It solves the problem that existing freeze dryers require replacing the entire sample rack when freezing taller items, and the protective cover on top of the freeze dryer has a fixed height. To ensure the cover can cover the sample rack, the number of layers in the sample rack needs to be reduced, thus decreasing the number of samples that can be freeze-dried and reducing work efficiency.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a multi-layer sample rack for a freeze dryer, including an adjustment mechanism for adjusting the height of the components; and

[0007] A stacking mechanism is disposed above an adjusting mechanism and is used to stack the adjusting mechanisms.

[0008] In this process, after the stacking mechanism and the adjustment mechanism have been stacked, the height of each layer is adjusted by the adjustment mechanism.

[0009] Furthermore, the adjustment mechanism includes an auxiliary component for assisting in lifting and lowering; and

[0010] A rotating component is disposed below the auxiliary component and is used to adjust the height of the auxiliary component.

[0011] The height of the auxiliary component is adjusted by rotating the rotating component.

[0012] Furthermore, the stacking mechanism includes a locking component for locking the upper component; and

[0013] A connecting component is disposed below the rotating component, and the connecting component connects multiple sample holders;

[0014] After the connecting components connect the sample holder, the locking components lock the sample holder in place.

[0015] Furthermore, the auxiliary component includes a sample stage, which has a through hole, a retaining ring fixedly connected to the top of the sample stage, and a sliding rod fixedly connected to the bottom of the sample stage;

[0016] The guide rings are used to intercept the edge of the through hole, and there are two slide bars in total.

[0017] Furthermore, the rotating assembly includes a threaded rod rotatably connected inside the sample stage, the bottom of the threaded rod penetrating the sample stage, a support rod threadedly connected to the outer surface of the threaded rod, a handle rotatably connected to the bottom of the support rod, a spline shaft fixedly connected to the top of the handle, and three support rods in total, with the threaded rod located inside the support rod on the right side, and slide rods slidably connected to the inner walls of the support rods on the left side and the back side.

[0018] The spline shaft is located inside the threaded rod, and the outer surface of the spline shaft is inserted into the inner wall of the threaded rod. When the spline shaft rotates, it will drive the threaded rod to rotate, and the threaded rod will move up and down on the outer surface of the spline shaft while rotating.

[0019] Furthermore, the locking assembly includes a stacking block fixedly connected to the top of the sample stage. There are three stacking blocks in total. A rotating ring is rotatably connected inside the stacking block. A locking rod is fixedly connected to the inner side of the rotating ring. A locking groove is opened at the bottom of the stacking block. The inner wall of the locking groove is adapted to the outer surface of the locking rod.

[0020] When the rotating ring rotates, it will drive the locking rod to rotate. When the locking rod rotates to the top of the locking slot, it will fall into the locking slot by gravity.

[0021] Furthermore, the connecting component includes a connecting block that contacts the inside of the stacked block, a locking groove is provided on the outer surface of the connecting block, a locking block is slidably connected to the inner wall of the locking groove, a rotating ring is rotatably connected to the inner wall of the stacked block, the inner side of the rotating ring is fixedly connected to the outer surface of the locking block, and a connecting groove is provided on the outer surface of the rotating ring.

[0022] The outer surface of the connecting groove is adapted to the inner wall of the locking rod. The locking groove has a groove inside, and the groove is inserted into the locking block. When the locking block is inserted into the groove, the locking rod will be aligned with the groove. Then the rotating ring is released. After the rotating ring is released, it will fall downwards due to its own gravity and drive the locking rod into the groove to lock the rotating ring.

[0023] This utility model has the following beneficial effects:

[0024] This invention features a sample stage. Specifically, rotating a throttle drives a splined shaft, which in turn rotates a threaded rod. As the threaded rod rotates, it gradually moves upward, pushing the sample stage to adjust its height. During this upward movement, a sliding rod is pulled to prevent the sample stage from tilting and causing the sample to roll off. Furthermore, each sample stage can be automatically adjusted according to the sample size, enhancing the device's practicality.

[0025] This invention utilizes a rotating ring. Specifically, rotating the ring causes the locking rod to rotate, which in turn rotates the rotating ring, causing the locking block to enter the groove inside the locking slot. When the locking block is engaged in the groove, the locking rod aligns with the slot. Then, the rotating ring is released. After the ring is released, it falls downwards due to its own weight, pulling the locking rod into the slot to lock the rotating ring. This prevents the locking block from accidentally disengaging from the groove in the locking slot, thus preventing the sample stage from collapsing and falling when it is being retrieved.

[0026] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0029] Figure 2 This is a schematic diagram of the front cross-sectional structure of the sample stage of this utility model;

[0030] Figure 3 This is a front sectional view of the support rod of this utility model;

[0031] Figure 4 This is a front sectional view of the stacking block of this utility model;

[0032] Figure 5 This is a schematic cross-sectional view of the top of the stacking block of this utility model.

[0033] The attached diagram lists the components represented by each number as follows:

[0034] 1. Adjustment mechanism; 11. Auxiliary components; 111. Sample stage; 112. Retaining ring; 113. Slide rod; 12. Rotating assembly; 121. Support rod; 122. Turning handle; 123. Splined shaft; 124. Threaded rod; 2. Stacking mechanism; 21. Locking assembly; 211. Stacking block; 212. Rotating ring; 213. Locking rod; 214. Locking groove; 215. Connecting groove; 22. Connecting assembly; 221. Connecting block; 222. Locking groove; 223. Rotating ring; 224. Locking block. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0036] Please see Figures 1-5 As shown, this utility model is a multi-layer sample rack for a freeze dryer, including an adjustment mechanism 1 for adjusting the height of the components; and

[0037] Stacking mechanism 2 is disposed above adjusting mechanism 1 and is used to stack adjusting mechanism 1;

[0038] In this process, after the stacking mechanism 2 and the adjustment mechanism 1 are stacked, the height of each layer is adjusted by the adjustment mechanism 1.

[0039] Adjustment mechanism 1 includes auxiliary component 11, which assists in lifting; and

[0040] Rotating component 12 is disposed below auxiliary component 11 and is used to adjust the height of auxiliary component 11.

[0041] The height of the auxiliary component 11 is adjusted by rotating the rotating component 12.

[0042] The stacking mechanism 2 includes a locking component 21 for locking the upper component; and

[0043] Connection component 22 is located below the rotating component 12 and connects multiple sample holders;

[0044] After the connecting component 22 connects the sample holder, the locking component 21 locks the sample holder.

[0045] The auxiliary component 11 includes a sample stage 111, which has a through hole. A retaining ring 112 is fixedly connected to the top of the sample stage 111, and a sliding rod 113 is fixedly connected to the bottom of the sample stage 111.

[0046] The device employs a retaining ring 112 to intercept the edge of the through hole. Two sliding rods 113 are provided. Rotating the handle 122 drives the spline shaft 123 to rotate, which in turn drives the threaded rod 124 to rotate. As the threaded rod 124 rotates, it gradually moves upwards, pushing the sample stage 111 to adjust its height. When the sample stage 111 moves upwards, it pulls the sliding rod 113 to prevent tilting during adjustment, thus preventing the sample from rolling off. Furthermore, each layer of the sample stage 111 can be automatically adjusted according to the sample size, improving the device's practicality.

[0047] The rotating assembly 12 includes a threaded rod 124 rotatably connected inside the sample stage 111. The bottom of the threaded rod 124 passes through the sample stage 111. A support rod 121 is threadedly connected to the outer surface of the threaded rod 124. A handle 122 is rotatably connected to the bottom of the support rod 121. A spline shaft 123 is fixedly connected to the top of the handle 122.

[0048] The spline shaft 123 is located inside the threaded rod 124. The outer surface of the spline shaft 123 is inserted into the inner wall of the threaded rod 124. There are three support rods 121 in total. The threaded rod 124 is located inside the support rod 121 on the right side. The support rods 121 on the left side and the back side are slidably connected to the inner walls of the support rods 121.

[0049] The locking assembly 21 includes a stacking block 211 fixedly connected to the top of the sample stage 111. There are three stacking blocks 211 in total. A rotating ring 212 is rotatably connected inside the stacking block 211. A locking rod 213 is fixedly connected to the inner side of the rotating ring 212. A locking groove 214 is opened at the bottom of the stacking block 211. The inner wall of the locking groove 214 is adapted to the outer surface of the locking rod 213.

[0050] When the rotating ring 212 rotates, it drives the locking rod 213 to rotate. When the locking rod 213 rotates to the top of the locking groove 214, it falls into the locking groove 214 by gravity. Rotating the rotating ring 212 drives the locking rod 213 to rotate, and then the rotating ring 223 rotates, causing the locking block 224 to enter the groove inside the locking slot 222. When the locking block 224 is locked into the groove, the locking rod 213 will be aligned with the locking groove 214. Then the rotating ring 212 is released. After the rotating ring 212 is released, it will fall downwards due to its own gravity, and drive the locking rod 213 into the locking groove 214 to lock the rotating ring 223. This prevents the locking block 224 from falling out of the groove in the locking groove 222 due to accidental contact, which could cause the sample stage 111 to collapse and fall when it is picked up.

[0051] The connecting component 22 includes a connecting block 221 that contacts the inside of the stacking block 211. A locking groove 222 is provided on the outer surface of the connecting block 221. A locking block 224 is slidably connected to the inner wall of the locking groove 222. A rotating ring 223 is rotatably connected to the inner wall of the stacking block 211. The inner side of the rotating ring 223 is fixedly connected to the outer surface of the locking block 224. A connecting groove 215 is provided on the outer surface of the rotating ring 223.

[0052] The outer surface of the connecting groove 215 is adapted to the inner wall of the locking rod 213, and the locking groove 222 has a groove inside, which is inserted into the locking block 224.

[0053] A specific application of this embodiment is as follows: In use, first select a sample stage 111 according to requirements. After selection, stack multiple sample stages 111, ensuring the upper connecting block 221 enters the connecting block 221 at the top of the lower sample stage 111. When the connecting block 221 enters the stacked block 211, the locking block 224 enters the locking groove 222. Then, rotate the rotating ring 212, causing the locking rod 213 to rotate. The rotation of the locking rod 213 then drives the rotating ring 223 to rotate, causing the locking block 224 to enter the groove inside the locking groove 222. When the locking block 224 is engaged in the groove, the locking rod 213 aligns with the groove 214. Then, release the rotating ring 212. After release, the rotating ring 212 will fall downwards due to its own gravity, causing the locking rod 213 to enter the groove 214, thus locking the rotating ring 223. To prevent accidental disengagement of the locking block 224 from the groove in the locking slot 222, which could cause the sample stage 111 to collapse and fall when being retrieved, after stacking the sample stages 111, the height of each layer of samples is adjusted by rotating the handle 122. The rotation of the handle 122 drives the spline shaft 123 to rotate, which in turn drives the threaded rod 124 to rotate. As the threaded rod 124 rotates, it gradually moves upward, pushing the sample stage 111 upward to adjust its height. When the sample stage 111 moves upward, it pulls the slide rod 113 to prevent the sample stage 111 from tilting during adjustment, thus preventing the samples from rolling off the sample stage 111. Furthermore, each layer of sample stage 111 can be automatically adjusted according to the size of the samples, improving the practicality of the device.

[0054] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0055] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A multi-layer sample rack for a freeze dryer, characterized in that, include: Adjustment mechanism (1), the adjustment mechanism (1) is used to adjust the height of the component; as well as Stacking mechanism (2), which is disposed above the adjusting mechanism (1), is used to stack the adjusting mechanism (1); In this process, after the stacking mechanism (2) and the adjustment mechanism (1) have finished stacking, the height of each layer is adjusted by the adjustment mechanism (1); The adjustment mechanism (1) includes an auxiliary component (11), which is used to assist in lifting. The auxiliary component (11) includes a sample stage (111), which is provided with a through hole. A retaining ring (112) is fixedly connected to the top of the sample stage (111), and a slide rod (113) is fixedly connected to the bottom of the sample stage (111). Among them, the edge of the through hole is intercepted by the retaining ring (112), and there are two slide bars (113); A rotating component (12) is disposed below the auxiliary component (11) and is used to adjust the height of the auxiliary component (11). The rotating assembly (12) includes a threaded rod (124) rotatably connected inside the sample stage (111). The bottom of the threaded rod (124) passes through the sample stage (111). A support rod (121) is threadedly connected to the outer surface of the threaded rod (124). A handle (122) is rotatably connected to the bottom of the support rod (121). A spline shaft (123) is fixedly connected to the top of the handle (122). The spline shaft (123) is located inside the threaded rod (124), and the outer surface of the spline shaft (123) is inserted into the inner wall of the threaded rod (124). There are three support rods (121). The threaded rod (124) is located inside the support rod (121) on the right side, and the inner walls of the support rods (121) on the left side and the back side are slidably connected with slide rods (113). The height of the auxiliary component (11) is adjusted by rotating the rotating component (12).

2. A multi-layer sample rack for a freeze dryer according to claim 1, characterized in that, The stacking mechanism (2) includes a locking component (21) for locking the upper component; as well as A connecting component (22) is disposed below the rotating component (12), and the connecting component (22) connects multiple sample holders; After the sample holder is connected by the connecting component (22), the sample holder is locked by the locking component (21).

3. A multi-layer sample rack for a freeze dryer according to claim 2, characterized in that, The locking assembly (21) includes a stacking block (211) fixedly connected to the top of the sample stage (111). There are three stacking blocks (211). A rotating ring (212) is rotatably connected inside the stacking block (211). A locking rod (213) is fixedly connected to the inner side of the rotating ring (212). A locking groove (214) is opened at the bottom of the stacking block (211). The inner wall of the locking groove (214) is adapted to the outer surface of the locking rod (213). When the rotating ring (212) rotates, it will drive the locking rod (213) to rotate. When the locking rod (213) rotates to the top of the locking groove (214), the locking rod (213) will fall into the locking groove (214) by gravity.

4. A multi-layer sample rack for a freeze dryer according to claim 3, characterized in that, The connecting component (22) includes a connecting block (221) that contacts the inside of the stacked block (211). A locking groove (222) is provided on the outer surface of the connecting block (221). A locking block (224) is slidably connected to the inner wall of the locking groove (222). A rotating ring (223) is rotatably connected to the inner wall of the stacked block (211). The inner side of the rotating ring (223) is fixedly connected to the outer surface of the locking block (224). A connecting groove (215) is provided on the outer surface of the rotating ring (223). The outer surface of the connecting groove (215) is adapted to the inner wall of the locking rod (213), and the locking groove (222) has a groove inside, which is inserted into the locking block (224).

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