Telescopic embryo freezing carrying rod

Abstract

The utility model relates to the technical field of freezing carrying rods, in particular to a telescopic embryo freezing carrying rod which comprises a freezing blade, one end of the freezing blade is connected with a connecting plate, one end of the connecting plate is provided with a storage box, a telescopic rod is elastically arranged in the storage box in a sliding mode, and the extending end of the telescopic rod is connected with the connecting plate. A telescopic rod is installed in the containing box, a telescopic sleeve is arranged outside the containing box in a sleeving mode, the telescopic sleeve slides towards the end away from the telescopic rod so as to drive the telescopic rod to slide out of the containing box, a partition plate is installed in the containing box, and the interior of the containing box is divided into a containing cavity and a driving cavity through the partition plate. According to the freezing carrying rod, the telescopic sleeve slides backwards, the gear disc is matched with the gear block, the handheld part can be unfolded, the telescopic sleeve is loosened, the elastic force of the spring is utilized, the handheld part can be automatically stored, the freezing carrying rod which is easy to operate and control is achieved, and the using convenience and practicability of the freezing carrying rod are improved.

Description

Technical Field

[0001] This application relates to the technical field of freezing carriers, and particularly to a retractable embryo freezing carrier. Background Art

[0002] A freezing carrier is a low-temperature experimental device, usually used for conducting experiments or storing samples in a low-temperature environment. Its main function is to provide a stable low-temperature environment and maintain the stability and integrity of the samples during the freezing process.

[0003] When the existing freezing carriers are in use, since the handheld part is very long, after the sampling is completed, when placed in liquid nitrogen for storage, they occupy a relatively large amount of space, resulting in waste of liquid nitrogen tanks or liquid nitrogen. Therefore, to solve the above problems, this application provides a retractable embryo freezing carrier.

[0004] For example: The "retractable and efficient oocyte / embryo freezing carrier" disclosed in the Chinese Utility Model Patent (Application No.: CN201820207794.2), which includes a carrier part and an outer sleeve of the carrier. The carrier part is composed of a handheld rod and a freezing blade,... greatly saves the cost of purchasing liquid nitrogen tanks and liquid nitrogen, and reduces the freezing cost of oocytes or embryos. Its specification discloses that the existing vitrification freezing carriers are usually composed of a freezing blade with a flat front end made of a polymer material and a handheld part. During use, oocytes or embryos are placed on the blade for freezing and preservation, and it is also convenient for thawing and recovery when needed in the future. This carrier device is completed under normal visual monitoring. The blade with cells or embryos is quickly frozen with liquid nitrogen, and a plastic tube is put on the outside, and then it is put into the freezing liquid for preservation again. The problems existing when applying the above carrier device are: the handheld part of the existing freezing carrier is relatively long, generally about 12 cm. The purpose of such a design is to facilitate putting the freezing carrier into the freezing bracket by hand and then into liquid nitrogen at a temperature of -196 degrees for storage. However, due to the relatively long handheld part of the freezing carrier, it occupies a relatively large amount of space in the liquid nitrogen, resulting in waste of liquid nitrogen tanks and liquid nitrogen, and increasing the freezing cost of oocytes or embryos; the above patent can prove the defects existing in the prior art.

[0005] The above information disclosed in this background art is only used to increase the understanding of the background art of this application. Therefore, it may include prior art that is not known to those of ordinary skill in the art. Summary of the Utility Model

[0006] In order to solve the problem that the long handheld part of the freezing carrier occupies the storage space of liquid nitrogen, this application provides a retractable embryo freezing carrier.

[0007] The present application provides a retractable embryo freezing carrier rod, comprising a freezing blade, one end of which is connected to a connecting plate, one end of which is provided with a storage box, a telescopic rod is elastically and slidably provided inside the storage box, an extended end of the telescopic rod is connected to the connecting plate, a telescopic sleeve is provided on the outside of the storage box, and the telescopic sleeve slides toward one end away from the telescopic rod to drive the telescopic rod to slide out of the storage box.

[0008] Preferably, a partition is installed inside the storage box, which divides the storage box into a storage chamber and a driving chamber. A winding shaft is movably installed in the driving chamber, and a spring is provided in the storage chamber. One end of the spring is connected to the inner wall of the partition, and the other end is connected to the end of the telescopic rod. The end of the telescopic rod is connected to a pull rope, and one end of the pull rope is wound on the winding shaft.

[0009] Preferably, two groups of pull ropes are provided, and the two groups are respectively arranged on both sides of the telescopic rod. A wire hole is opened at one end of the storage box close to the connecting plate, and a through hole is opened at the top of the storage box close to the driving cavity. The pull rope passes through the wire hole and enters the driving cavity from the through hole.

[0010] Preferably, a gear plate is coaxially sleeved in the middle of the winding shaft, and a plurality of gear blocks are linearly and equidistantly arranged on the inner wall of the telescopic sleeve. The top of the gear plate extends to the top of the storage box, and a hole for the movement of the gear plate is provided on the upper end surface of the storage box, and the gear plate is meshed with the gear block.

[0011] Preferably, an insert block is installed at one end of the telescopic sleeve close to the telescopic rod, and a clamping sleeve is installed at one end of the storage box close to the telescopic rod, and the insert block and the clamping sleeve are dampingly plug-fitted.

[0012] Preferably, the outer walls on both sides of the storage box are respectively provided with linear grooves, and the inner wall of the telescopic sleeve is provided with a sliding block which is limited in position and slides in the linear grooves.

[0013] Preferably, the telescopic rod and the storage box are of equal length, and the storage box and the telescopic sleeve are of equal length.

[0014] In summary, this application includes the following beneficial technical effects:

[0015] A hand-held part that can be slidably expanded into three lengths is provided, and the hand-held part can be expanded by sliding the telescopic sleeve backward and cooperating with the gear plate and the tooth block. The hand-held part can be automatically retracted by loosening the telescopic sleeve and utilizing the elastic force of the spring, thereby realizing a freezing carrier rod that is easy to operate and improving the convenience and practicality of using the freezing carrier rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a diagram of a storage state in an embodiment of the present application;

[0017] Figure 2 is a view in the deployed state in an embodiment of the present application;

[0018] Figure 3 is a sectional view at the take-up reel in an embodiment of the present application;

[0019] Figure 4 is a sectional view in the deployed state in an embodiment of the present application.

[0020] Description of reference numerals: 1, freezing blade; 2, connecting plate; 3, telescopic rod; 31, pulling rope; 32, spring; 4, storage box; 41, card sleeve; 42, linear groove; 43, wire hole; 44, partition; 45, take-up reel; 46, gear disk; 5, telescopic sleeve; 51, insertion block; 52, tooth block. Detailed implementation manners

[0021] The following further describes the present application in detail with reference to the attached Figure 1 - Figure 4 drawings.

[0022] Embodiment 1: Referring to Figure 1 - Figure 4 , a telescopic embryo freezing carrier rod includes a freezing blade 1. One end of the freezing blade 1 is connected to a connecting plate 2. One end of the connecting plate 2 is provided with a storage box 4. An elastic telescopic rod 3 is slidably arranged inside the storage box 4. The telescopic rod 3 has a force to elastically retract into the storage box 4. The extending end of the telescopic rod 3 is connected to the connecting plate 2. A telescopic sleeve 5 is sleeved outside the storage box 4. The telescopic sleeve 5 slides towards the end away from the telescopic rod 3 to drive the telescopic rod 3 to slide out of the storage box 4, so that the telescopic rod 3, the storage box 4 and the telescopic sleeve 5 can be unfolded in three sections; in the telescopic state, the total length of the freezing carrier rod is the total length of the freezing blade 1, the connecting plate 2 and the telescopic sleeve 5. In the use state, the length of the hand-held part is increased by the telescopic rod 3 and the storage box 4, so that it is more convenient to hold for sampling. When it is placed in the liquid nitrogen cavity, the telescopic rod 3 retracts under the elastic action, so that the telescopic rod 3, the storage box 4 and the telescopic sleeve 5 automatically contract, making the use more convenient and fast.

[0023] Inside the storage box 4, a partition 44 is installed. The partition 44 divides the inside of the storage box 4 into a storage cavity and a drive cavity. A winding shaft 45 is movably installed in the drive cavity. A spring 32 is arranged in the storage cavity. One end of the spring 32 is connected to the inner wall of the partition 44, and the other end is connected to the end of the telescopic rod 3. A pulling rope 31 is connected to the end of the telescopic rod 3. One end of the pulling rope 31 is wound on the winding shaft 45; there are two groups of pulling ropes 31. The sliding part of the telescopic rod 3 in the storage box 4 is of a T-shaped structure, so that the sliding part of the telescopic rod 3 cannot slide out of the storage box 4. The two groups are respectively arranged on both sides of the telescopic rod 3. One end of the storage box 4 close to the connecting plate 2 is provided with a wire hole 43. The top of the storage box 4 close to the drive cavity is provided with a through hole. The pulling rope 31 passes through the wire hole 43 and penetrates into the drive cavity through the through hole; a gear disk 46 is coaxially sleeved in the middle of the winding shaft 45. A plurality of tooth blocks 52 are linearly and equidistantly arranged on the inner wall of the telescopic sleeve 5. The top of the gear disk 46 penetrates above the storage box 4. A hole for the movement of the gear disk 46 is opened on the upper end surface of the storage box 4. The gear disk 46 is meshed and matched with the tooth blocks 52. By pushing the telescopic sleeve 5 backward relative to the storage box 4, the tooth blocks 52 can be meshed with the gear disk 46, so that the winding shaft 45 rotates to wind the pulling rope 31. The pulling rope 31 then slides out from the wire hole 43, thereby pulling the telescopic rod 3 outwards. When in use, hold the dislocation part of the storage box 4 and the telescopic sleeve 5 so that the telescopic sleeve 5 cannot slide back into place, and then start sampling. After sampling, release the telescopic sleeve 5. Driven by the spring 32, the telescopic rod 3, the storage box 4 and the telescopic sleeve 5 automatically contract and merge.

[0024] Different from Embodiment 1

[0025] Embodiment 2: Refer to Figure 1 - Figure 4 One end of the telescopic sleeve 5 close to the telescopic rod 3 is provided with a plug 51, and one end of the storage box 4 close to the telescopic rod 3 is provided with a socket 41. The plug 51 is in damping plug-in connection with the socket 41. When in the storage state, the plug 51 is plugged into the socket 41, which can ensure the stability of the storage state of the freezing carrier rod.

[0026] Linear grooves 42 are respectively opened on the outer walls on both sides of the storage box 4. A slider that is limited to slide in the linear groove 42 is installed on the inner wall of the telescopic sleeve 5. When pulling the telescopic sleeve 5, the slider slides in the linear groove 42, which improves the stability of the sliding fit between the storage box 4 and the telescopic sleeve 5.

[0027] The telescopic rod 3 and the storage box 4 are of the same length. The storage box 4 and the telescopic sleeve 5 are of the same length. The length of the telescopic rod 3 is equal to the length of the freezing blade 1. Such a setting can divide the handheld part into three sections. In the liquid nitrogen cavity, the handheld part can be stored to the minimum extent, thereby reducing its occupied space.

[0028] The above are all preferred embodiments of this application, and the protection scope of this application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A telescopic embryo freezing carrier rod, comprising a freezing blade (1), one end of the freezing blade (1) is connected with a connecting plate (2), and it is characterized in that: A storage box (4) is provided at one end of the connecting plate (2), a telescopic rod (3) is elastically slidably provided inside the storage box (4), an extended end of the telescopic rod (3) is connected to the connecting plate (2), a telescopic sleeve (5) is provided on the outside of the storage box (4), and the telescopic sleeve (5) slides toward an end away from the telescopic rod (3) to drive the telescopic rod (3) to slide out of the storage box (4).

2. The retractable embryo freezing carrier rod according to claim 1, wherein: A partition (44) is installed inside the storage box (4), and the partition (44) divides the storage box (4) into a storage chamber and a driving chamber. A winding shaft (45) is movably installed in the driving chamber. A spring (32) is arranged in the storage chamber, one end of the spring (32) is connected to the inner wall of the partition (44), and the other end is connected to the end of the telescopic rod (3). The end of the telescopic rod (3) is connected to a pull rope (31), and one end of the pull rope (31) is wound on the winding shaft (45).

3. The retractable embryo freezing carrier rod according to claim 2, characterized in that: The pull rope (31) is provided with two groups, and the two groups are respectively arranged on both sides of the telescopic rod (3); a wire hole (43) is opened at one end of the storage box (4) close to the connecting plate (2); a through hole is opened at the top of the storage box (4) close to the driving cavity; the pull rope (31) passes through the wire hole (43) and enters the driving cavity from the through hole.

4. The retractable embryo freezing carrier rod according to claim 2, wherein: A gear plate (46) is coaxially sleeved in the middle of the winding shaft (45); a plurality of tooth blocks (52) are linearly and equidistantly arranged on the inner wall of the telescopic sleeve (5); the top of the gear plate (46) extends to the top of the storage box (4); a hole for the gear plate (46) to move is provided on the upper end surface of the storage box (4); the gear plate (46) is meshed with the tooth blocks (52).

5. A telescopic embryo freezing carrier rod according to claim 1, characterized in that: An insert block (51) is installed at one end of the telescopic sleeve (5) close to the telescopic rod (3), and a clamping sleeve (41) is installed at one end of the storage box (4) close to the telescopic rod (3), and the insert block (51) and the clamping sleeve (41) are damping plug-in matched.

6. The telescopic embryo freezing carrier rod according to claim 1, characterized in that: The outer walls of both sides of the storage box (4) are respectively provided with linear grooves (42), and the inner wall of the telescopic sleeve (5) is provided with a sliding block which is limitedly slidable in the linear grooves (42).

7. The telescopic embryo freezing carrier rod according to claim 1, wherein: The telescopic rod (3) and the storage box (4) are of equal length, and the storage box (4) and the telescopic sleeve (5) are of equal length.

Images