A low-temperature sample weighing box for physiological experiments involving protection against air and water vapor

Abstract

This utility model relates to the field of low-temperature sample weighing boxes, specifically a low-temperature sample weighing box for physiological experiments that is protected against air and water vapor. It includes a box body, with a sealing cover rotatably connected to the front of the box body via a hinge, and a partition slidably connected to the inner cavity of the box body. This utility model, through the setting of an adjustment mechanism, allows movement by pulling a handle, which in turn moves a connecting rod, which in turn moves a push plate. This eliminates the need for a fixed plate; the spring's restoring deformation causes the fixed plate to retract from the fixed groove, thus eliminating the need for a fixed partition position. This allows the partition to be moved within the box body, enabling adjustment of the partition's position. This solves the problem that in the use of low-temperature sample weighing boxes, the internal space is small and fixed, making it impossible to adjust according to sample size, leading to disordered sample placement, easy collision or compression, and affecting sample integrity.

Description

Technical Field

[0001] This utility model relates to the field of low-temperature sample weighing boxes, specifically a low-temperature sample weighing box for physiological experiments that is protected against air and water vapor. Background Technology

[0002] In physiological experiments, many samples are sensitive to temperature. For example, some bioactive substances are prone to denaturation, degradation or inactivation at room temperature. In order to ensure the accuracy and reliability of experimental results, low-temperature weighing boxes are usually used to accurately weigh such samples.

[0003] However, existing low-temperature sample boxes have a small internal space, and because the internal space is fixed, it cannot be adjusted according to the size of the sample, resulting in the samples being placed in a disorderly manner, easily colliding or being squeezed, which affects the integrity of the samples. Utility Model Content

[0004] To address the shortcomings of existing technologies, the low-temperature sample weighing box has a small internal space during use, and because the internal space is fixed, it cannot be adjusted according to the size of the sample, resulting in the sample being placed in a disorderly manner, easily colliding or being squeezed, and affecting the integrity of the sample. This utility model proposes a low-temperature sample weighing box for physiological experiments that is protected against air and water vapor.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a low-temperature sample weighing box for physiological experiments that is protected against air and water vapor, including a box body, a sealing cover that is rotatably connected to the front side of the box body by a hinge, a partition that is slidably connected to the inner cavity of the box body, and an adjustment mechanism installed at the bottom of the partition. The adjustment mechanism includes an adjustment seat and a fixing groove. The top of the adjustment seat is fixedly connected to the bottom of the partition. The fixing groove is opened in the inner cavity of the box. A handle is in contact with the right side of the adjustment seat. A connecting rod is fixedly connected to the left side of the handle. A push plate is fixedly connected to the left side of the connecting rod. A fixing plate is in contact with the left side of the push plate. The surface of the fixing plate is engaged with the inner cavity of the fixing groove.

[0006] Preferably, the inner cavity of the adjusting seat is provided with a moving groove, the inner cavity of the moving groove is slidably connected to the surfaces of the fixing plate and the push plate respectively, the back side of the inner cavity of the moving groove is provided with a positioning groove, the inner cavity of the positioning groove is slidably connected with a first positioning plate and a second positioning plate respectively, the front side of the first positioning plate is fixedly connected to the back side of the push plate, and the front side of the second positioning plate is fixedly connected to the back side of the fixing plate.

[0007] Preferably, a positioning rod is fixedly connected to the inner cavity of the positioning groove, and the surface of the positioning rod is slidably connected to the inner cavities of the first positioning plate and the second positioning plate, respectively.

[0008] Preferably, springs are fixedly connected to the surfaces of both the first and second positioning plates, and one end of each spring is fixedly connected to the inner cavity of the positioning groove.

[0009] Preferably, guide grooves are provided on both sides of the inner cavity of the box, a guide rod is fixedly connected to the inner cavity of the guide groove, a guide plate is slidably connected to the surface of the guide rod, and one side of the guide plate is fixedly connected to the surface of the partition.

[0010] Preferably, a sealing seat is fixedly connected to the front side of the inner cavity of the box, a sealing gasket is inserted into the inner cavity of the sealing seat, and the front side of the sealing gasket is fixedly connected to the back side of the sealing cover.

[0011] Preferably, the surface of the box is fixedly connected with anti-slip strips, and the number of anti-slip strips is several and they are distributed in a ring around the surface of the box.

[0012] The advantages of this utility model are: This invention, through the setting of an adjustment mechanism, allows movement by pulling a handle, which in turn moves a connecting rod, which in turn moves a push plate. By eliminating the need for a fixed plate, and using a spring to recover its deformation, the fixed plate retracts from the fixed groove. This eliminates the need for fixing the position of the partition, allowing the partition to be moved within the box and its position adjusted. This solves the problem of the low-temperature sample weighing box having limited internal space and being unable to be adjusted according to sample size due to its fixed internal space, leading to disordered sample placement, easy collisions or compression, and compromised sample integrity. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the box body of this utility model; Figure 3 This is a cross-sectional view of the box body of this utility model; Figure 4 This is a schematic diagram of the structure of the adjusting seat of this utility model; Figure 5 This is a cross-sectional view of the adjusting seat of this utility model.

[0015] In the diagram: 1. Box body; 2. Adjustment mechanism; 201. Adjustment seat; 202. Fixing groove; 203. Guide rod; 204. Guide plate; 205. Guide groove; 206. Handle; 207. Fixing plate; 208. Push plate; 209. Connecting rod; 210. Moving groove; 211. Positioning groove; 212. Positioning rod; 213. Spring; 214. First positioning plate; 215. Second positioning plate; 3. Sealing cover; 4. Anti-slip strip; 5. Partition; 6. Sealing seat; 7. Sealing gasket. Detailed Implementation

[0016] 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 of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0017] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail. This application discloses a cryogenic sample weighing box for physiological experiments that is protected against air and water vapor. (Refer to...) Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A low-temperature sample weighing box for physiological experiments that is protected against air and water vapor includes a box body 1. The box body 1 is made of polystyrene foam plastic and has good heat insulation performance. A sealing cover 3 is rotatably connected to the front side of the box body 1 via a hinge. A partition 5 is slidably connected to the inner cavity of the box body 1. An adjustment mechanism 2 is installed at the bottom of the partition 5. The adjustment mechanism 2 includes an adjustment seat 201 and a fixing groove 202. The top of the adjustment seat 201 is fixedly connected to the bottom of the partition 5, and the surface of the adjustment seat 201 is slidably connected to the inner cavity of the box body 1. The fixing groove 202 is opened in the inner cavity of the box body 1, and there are several fixing grooves 202 arranged in multiple rows. A handle 206 is in contact with the right side of the adjustment seat 201, and a connecting rod 209 is fixedly connected to the left side of the handle 206. The surface of the connecting rod 209 is slidably connected to the inner cavity of the adjustment seat 201, and a push plate 208 is fixedly connected to the left side of the connecting rod 209. A fixing plate 207 is in contact with the left side of the push plate 208. Both the fixing plate 207 and the push plate 208 are provided with inclined surfaces. When the inclined surfaces are used together, the surface of the fixing plate 207 engages with the inner cavity of the fixing groove 202. When the position of the partition 5 needs to be adjusted, the operator first pulls the handle 206 to the right. The movement of the handle 206 moves the connecting rod 209, which in turn moves the push plate 208. By moving the push plate 208 to the right, the positioning of the fixing plate 207 can be canceled, allowing the fixing plate 207 to detach from the inside of the fixing groove 202. This cancels the fixing of the partition 5. Then, the partition 5 can be pushed up and down inside the box 1 to adjust its position and change the spatial distribution inside the box 1.

[0018] Reference Figure 5 The inner cavity of the adjusting seat 201 is provided with a moving groove 210. The inner cavity of the moving groove 210 is slidably connected to the surfaces of the fixed plate 207 and the push plate 208. The back side of the inner cavity of the moving groove 210 is provided with a positioning groove 211. The inner cavity of the positioning groove 211 is slidably connected to a first positioning plate 214 and a second positioning plate 215. The front side of the first positioning plate 214 is fixedly connected to the back side of the push plate 208, and the front side of the second positioning plate 215 is fixedly connected to the back side of the fixed plate 207. Through the setting of the moving groove 210, the fixed plate 207 and the push plate 208 are slidably connected to the push plate 208. The push plate 208 can move inside the adjusting seat 201, thereby adjusting the position of the fixing plate 207 and the push plate 208, making it easier for the fixing plate 207 to detach from the fixing groove 202. At the same time, the first positioning plate 214 and the second positioning plate 215 limit the movement of the push plate 208 and the fixing plate 207 when sliding inside the positioning rod 212, preventing the push plate 208 and the fixing plate 207 from moving too far, causing them to detach from the adjusting seat 201, and thus affecting the subsequent normal reset.

[0019] Reference Figure 5A positioning rod 212 is fixedly connected to the inner cavity of the positioning groove 211. The surface of the positioning rod 212 is slidably connected to the inner cavity of the first positioning plate 214 and the second positioning plate 215 respectively. The positioning rod 212 guides the movement of the first positioning plate 214 and the second positioning plate 215, avoiding jamming during the movement of the first positioning plate 214 and the second positioning plate 215, thereby improving the stability of the push plate 208 and the fixed plate 207 during the movement.

[0020] Reference Figure 5 Springs 213 are fixedly connected to the surfaces of the first positioning plate 214 and the second positioning plate 215. One end of the spring 213 is fixedly connected to the inner cavity of the positioning groove 211. The spring 213 supports the position of the first positioning plate 214 and the second positioning plate 215. When the handle 206 is pulled, the spring 213 connected to the first positioning plate 214 will contract. At the same time, since the surface of the fixed plate 207 lacks the obstruction of the push plate 208, the spring 213 connected to the second positioning plate 215 will restore its deformation and push the fixed plate 207 to move, so that the fixed plate 207 can be easily removed from the inside of the fixed groove 202.

[0021] Reference Figure 2 and Figure 3 Guide grooves 205 are provided on both sides of the inner cavity of the box body 1. A guide rod 203 is fixedly connected to the inner cavity of the guide groove 205. A guide plate 204 is slidably connected to the surface of the guide rod 203. One side of the guide plate 204 is fixedly connected to the surface of the partition 5. The guide groove 205 allows the guide plate 204 to slide inside the box body 1. The guide rod 203 guides the movement of the guide plate 204, keeping the guide plate 204 moving vertically. This improves the stability of the partition 5 during movement and prevents the partition 5 from shifting its position.

[0022] Reference Figure 2 A sealing seat 6 is fixedly connected to the front side of the inner cavity of the box body 1. A sealing gasket 7 is inserted into the inner cavity of the sealing seat 6. The front side of the sealing gasket 7 is fixedly connected to the back side of the sealing cover 3. With the setting of the sealing gasket 7, when the sealing cover 3 is closed, the surface of the sealing gasket 7 can be inserted into the interior of the sealing seat 6, thereby improving the sealing effect inside the box body 1 and preventing external air and moisture from entering the interior of the box body 1.

[0023] Reference Figure 1 and Figure 2 The surface of the box 1 is fixedly connected with anti-slip strips 4. There are several anti-slip strips 4, which are distributed in a ring around the surface of the box 1. By setting the anti-slip strips 4, the contact area with the box 1 is increased, which makes it easier to move the position of the box 1. At the same time, it can prevent the hand from slipping when holding the box 1 and moving it, and prevent the box 1 from falling to the ground and being damaged.

[0024] Working principle: Before use, the internal space of the box 1 is divided by partition 5. The sample to be weighed is placed on top of partition 5, and a high-cold-capacity polymer compound is placed below partition 5 to serve as a cold source to maintain the low-temperature environment inside the box 1. Meanwhile, the box 1, made of polystyrene foam, reduces the transfer of external heat during use, thus maintaining the low-temperature environment inside the box 1. During use, the sealing cap 3 is rotated to release the seal on the inside of the box 1. The sample to be weighed is placed on top of partition 5. After the sample is placed, the sealing cap 3 is rotated back to its original position. During the resetting process, the surface of the sealing gasket 7 will re-insert into place. The sample is placed inside the sealing seat 6 to ensure the airtightness of the box 1, preventing moisture from the outside air from entering the box 1 and contacting the sample, altering its structure and properties, and affecting the accuracy and reliability of the experimental results. When the size of the sample does not match the space at the top of the partition 5, the operator first pulls the handle 206 to the right. The movement of the handle 206 moves the connecting rod 209, which in turn moves the push plate 208. As the push plate 208 moves, it moves the first positioning plate 214 synchronously. The movement of the first positioning plate 214 compresses the spring 213 connected to it, causing it to contract. When the push plate 208... When the fixed plate 207 is no longer obstructed during movement, it can recover its deformation through the spring 213 connected to the second positioning plate 215. The spring 213 pushes the second positioning plate 215 to move to the right, and the movement of the second positioning plate 215 drives the fixed plate 207 to move, thus removing the surface of the fixed plate 207 from the inside of the fixing groove 202, thereby releasing the fixation of the partition 5. Then, the partition 5 can be pushed up and down inside the box 1 to adjust its position, thereby changing the spatial distribution inside the box 1. After the position of the partition 5 is adjusted, by releasing the handle 206, when the spring 213 is no longer obstructed, the fixed plate 207 can be removed from the inside of the fixing groove 202. When subjected to force, the spring 213 restores its deformation and pushes the first positioning plate 214 to reset. The movement of the first positioning plate 214 drives the push plate 208 to move. During the movement of the push plate 208, the fixed plate 207 will be pushed to move, and the surface of the fixed plate 207 will be re-inserted into the interior of the fixed groove 202 to fix the position of the partition 5. Since the force generated by the spring 213 connected to the first positioning plate 214 is greater than the force generated by the spring 213 connected to the second positioning plate 215, the fixed plate 207 and the push plate 208 can maintain a fixed state when no force is applied. The fixed state of the fixed plate 207 and the push plate 208 will only be affected when the handle 206 is subjected to external force.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A low temperature sample weighing box for air-free physiological experiments, comprising a box body (1), characterized in that: The front side of the box (1) is connected to a sealing cover (3) by a hinge, and the inner cavity of the box (1) is slidably connected to a partition (5). An adjustment mechanism (2) is installed at the bottom of the partition (5). The adjustment mechanism (2) includes an adjustment seat (201) and a fixing groove (202). The top of the adjustment seat (201) is fixedly connected to the bottom of the partition (5). The fixing groove (202) is opened in the inner cavity of the box body (1). The right side of the adjustment seat (201) is in contact with a handle (206). The left side of the handle (206) is fixedly connected to a connecting rod (209). The left side of the connecting rod (209) is fixedly connected to a push plate (208). The left side of the push plate (208) is in contact with a fixing plate (207). The surface of the fixing plate (207) is engaged with the inner cavity of the fixing groove (202).

2. The low temperature sample weighing box for preventing air water vapor physiology experiment of claim 1, characterized in that: The inner cavity of the adjusting seat (201) is provided with a moving groove (210). The inner cavity of the moving groove (210) is slidably connected to the surfaces of the fixing plate (207) and the push plate (208). The back side of the inner cavity of the moving groove (210) is provided with a positioning groove (211). The inner cavity of the positioning groove (211) is slidably connected with a first positioning plate (214) and a second positioning plate (215). The front side of the first positioning plate (214) is fixedly connected to the back side of the push plate (208), and the front side of the second positioning plate (215) is fixedly connected to the back side of the fixing plate (207).

3. The low temperature sample weighing box for preventing air water vapor physiology experiment of claim 2, characterized in that: The positioning groove (211) has a positioning rod (212) fixedly connected to its inner cavity. The surface of the positioning rod (212) is slidably connected to the inner cavities of the first positioning plate (214) and the second positioning plate (215).

4. The low temperature sample weighing box for preventing air water vapor physiology experiment of claim 2, characterized in that: Springs (213) are fixedly connected to the surfaces of the first positioning plate (214) and the second positioning plate (215), and one end of the spring (213) is fixedly connected to the inner cavity of the positioning groove (211).

5. The low-temperature sample weighing box for air-water vapor-proof physiological experiments according to claim 1, characterized in that: The inner cavity of the box (1) is provided with guide grooves (205) on both sides. A guide rod (203) is fixedly connected to the inner cavity of the guide groove (205). A guide plate (204) is slidably connected to the surface of the guide rod (203). One side of the guide plate (204) is fixedly connected to the surface of the partition (5).

6. The low-temperature sample weighing box for air-water vapor-proof physiological experiments according to claim 1, characterized in that: A sealing seat (6) is fixedly connected to the front side of the inner cavity of the box body (1), and a sealing gasket (7) is inserted into the inner cavity of the sealing seat (6). The front side of the sealing gasket (7) is fixedly connected to the back side of the sealing cover (3).

7. The low-temperature sample weighing box for air-water vapor-proof physiological experiments according to claim 1, characterized in that: The surface of the box (1) is fixedly connected with anti-slip strips (4), and the number of anti-slip strips (4) is several and they are distributed in a ring around the surface of the box (1).

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