CN215302621U

CN215302621U - Cord blood stem cell storage box

Info

Publication number: CN215302621U
Application number: CN202121768959.1U
Authority: CN
Inventors: 杨兵
Original assignee: Frontier Biotechnology Zhejiang Co ltd
Current assignee: Frontier Biotechnology Zhejiang Co ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2021-12-28
Anticipated expiration: 2031-07-30

Abstract

The utility model relates to the technical field of solid transportation, and discloses a cord blood stem cell storage box which comprises a box body and a storage cavity, wherein the storage cavity with an upward opening is arranged in the box body, a cover body is arranged at the opening of the storage cavity, and an upper first refrigerating unit and a lower second refrigerating unit which are respectively arranged on the cover body and the box body are arranged in the storage cavity.

Description

Cord blood stem cell storage box

Technical Field

The utility model relates to the technical field of solid transportation, in particular to a cord blood stem cell storage box.

Background

Research in recent ten years shows that cord blood contains hematopoietic stem cells capable of reconstructing human hematopoietic and immune systems, and can be used for hematopoietic stem cell transplantation, the cord blood needs to be rapidly transported to a hematopoietic stem cell bank special for storing the cord blood after being collected, a storage box is usually required to be stored at low temperature in the transportation process, and the existing storage mode usually adopts that a refrigerant is filled at the bottom in a box body for refrigeration, but the temperature of the upper side of the cavity in the box body is higher than that of the lower side, and the cord blood is easy to deteriorate in the transportation process.

SUMMERY OF THE UTILITY MODEL

In view of the deficiencies of the prior art, it is an object of the present invention to provide a cord blood stem cell storage container that overcomes the above-mentioned deficiencies of the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: cord blood stem cell storage box, including lid and box, be provided with the ascending storage chamber of opening in the box, the lid set up in storage chamber opening part, be provided with first refrigerating unit in the lid, first refrigerating unit is used for to the refrigeration of storage intracavity top, be provided with second refrigerating unit in the box, second refrigerating unit is used for to the refrigeration of storage intracavity bottom, two upper and lower settings have been set up in the utility model respectively the lid with on the box first refrigerating unit with the second refrigerating unit, for this way the storage chamber can satisfy the refrigeration of two upper and lower directions simultaneously, and will first refrigerating unit sets up in the lid, can satisfy the refrigeration demand while, do not influence taking of cord blood.

As a further improvement of the present invention, the first refrigeration unit includes a first refrigeration cavity and a plurality of first air holes connecting the first refrigeration cavity and the storage cavity, an opening communicating with the outside is provided at one side of the first refrigeration cavity, a first refrigeration box having an opening at one side is slidably installed in the first refrigeration cavity, the opening of the first refrigeration box faces the first air hole, a first clamping plate is provided at a side surface of the first refrigeration box facing the opening of the first refrigeration cavity, the first clamping plate can provide a locking force acting on the box body so as to fix the cover body on the box body, during actual transportation, the failure of the refrigerant due to too long distance of transportation is inevitable, and the refrigerant needs to be replaced at this time, but when the existing storage box is replaced, the box body needs to be completely opened, and then the refrigerant is replaced, the temperature in the storage cavity can be greatly changed, and the refrigeration box which can be drawn out is arranged in the refrigerator, so that the refrigerant can be replaced under the condition that the cover body is not required to be opened, and the change of the temperature difference in the storage cavity is reduced.

As a further improvement of the present invention, a first sliding plate is movably installed in the cover body horizontally, a plurality of first through holes are provided in the first sliding plate, at least one first spring is connected between the first sliding plate and the cover body, when one end of the first clamping plate is clamped to the box body, the first clamping plate gives the first sliding plate a movement towards the spring direction, so that the first through holes and the first air holes are communicated one by one, when one end of the first clamping plate is separated from the first clamping groove, the first spring drives one end of the first sliding plate to extend out of the opening of the first refrigeration cavity, so that the first through holes and the first air holes are dislocated with each other, and the first sliding plate is arranged to directly seal the quiet first air hole connected between the storage cavity and the first refrigeration cavity when the refrigerant is replaced, so that the storage chamber is in a completely closed state when the refrigerant is replaced, which can further reduce the variation of the temperature difference in the storage chamber.

As a further improvement of the present invention, one end of the first clamping plate is hinged to the first refrigeration box, the other end of the first clamping plate is provided with a first clamping block, the box body is provided with a first clamping groove opposite to the first clamping block, and the first clamping block is matched with the first clamping groove.

As a further improvement of the present invention, the second refrigeration unit includes a second refrigeration cavity and a plurality of second air holes connecting the second refrigeration cavity and the storage cavity, an opening communicating with the outside is provided at one side of the second refrigeration cavity, a second refrigeration box having an opening at one side is slidably installed in the second refrigeration cavity, the opening of the second refrigeration box faces the second air holes, a second clamping plate is provided at a side surface of the second refrigeration box facing the opening of the second refrigeration cavity, the second clamping plate can provide a locking force acting on the box body so as to fix the second refrigeration box in the box body, and similarly, for the second refrigeration unit below, the cover body does not need to be opened to replace the refrigerant.

As a further improvement of the utility model, a second sliding plate is horizontally and slidably arranged in the box body, a plurality of second through holes are arranged in the second sliding plate, at least one second spring is connected between the second sliding plate and the box body, when one end of the second clamping plate is clamped in the box body, the second clamping plate gives the second sliding plate to move towards the spring direction so as to enable the second through holes to be communicated with the second air holes one by one, when one end of the second clamping plate is separated from the second clamping groove, the second spring drives one end of the second sliding plate to extend out of the opening of the second refrigeration cavity, so that the second through hole and the second air hole are staggered, and for the second refrigeration unit, when the refrigerant is replaced, the second air hole can be closed, and outside air is prevented from entering the storage cavity.

As a further improvement of the present invention, one end of the second clamping plate is hinged to the second refrigeration box, the other end of the second clamping plate is provided with a second clamping block, the box body is provided with a second clamping groove opposite to the second clamping block, and the second clamping block is adapted to the second clamping groove.

As a further improvement of the utility model, a fixing component is arranged in the storage cavity, the fixing component comprises a fixed disc and a tray which are sequentially arranged from top to bottom, the fixed disc is provided with a plurality of mounting holes, the top of the tray is provided with a plurality of grooves, the positions of the grooves and the mounting holes are in one-to-one correspondence, for transporting umbilical cord blood stored in a test tube, test tubes can be inserted into the mounting holes one by one, then the grooves provide supporting force for the bottoms of the test tubes, so that the stability of the test tubes during transportation is enhanced, if the umbilical cord blood in bags is in a double-layer structure formed by the fixed disc and the tray, more umbilical cord blood can be stored at the same time, and if the tray is in a plate-shaped structure without holes, the temperature of the bottom space of the tray is easily different from the temperature of the top space of the tray, the second refrigeration unit, which is located at the bottom side of the storage chamber, is well able to cool the space at the bottom of the tray as well.

As a further improvement of the utility model, a plurality of fixed rods are vertically arranged at two sides of the storage cavity, a plurality of fixed grooves are respectively formed in the fixed rods at two sides along the length direction of the fixed rods, and rotating plates capable of being clamped into the fixed grooves are respectively arranged at two sides of the fixed disks and the tray facing the fixed rods.

The utility model has the beneficial effects that: the first refrigerating unit and the second refrigerating unit are arranged on the cover body and the box body respectively, so that refrigeration in the upper direction and the lower direction can be simultaneously met for the storage cavity, and the first refrigerating unit is arranged in the cover body, so that the umbilical cord blood taking is not influenced while the refrigeration requirement is met;

in actual transportation, the situation that the refrigerant fails due to too long transportation distance is inevitable, the refrigerant needs to be replaced at this time, but when the existing storage box is replaced, the box body needs to be completely opened, then the refrigerant is replaced, and the temperature in the storage cavity is greatly changed.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

fig. 3 is an enlarged view illustrating the construction of the rotation plate of fig. 2 according to the present invention.

Reference numerals: 1. a box body; 2. a cover body; 11. a storage chamber; 3. a first refrigeration unit; 31. a first refrigeration cavity; 32. a first refrigeration case; 33. an orifice plate; 34. a first spring; 35. a first through hole; 36. a first air hole; 37. a first slide plate; 38. a first clamping connection plate; 391. a first clamping block; 392. a first card slot; 4. a second refrigeration unit; 41. a second refrigeration cavity; 42. a second spring; 43. a second refrigeration case; 44. a second through hole; 45. a second air hole; 46. a second slide plate; 47. a second clamping plate; 481. a second fixture block; 482. a second card slot; 5. a fixing assembly; 51. a tray; 52. fixing the disc; 53. fixing the rod; 54. fixing grooves; 55. a rotating plate; 56. an extension block; 57. an elastic block.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Referring to fig. 1-3, the cord blood stem cell storage box of this embodiment includes a cover 2 and a box 1, a storage cavity 11 with an upward opening is provided in the box 1, the cover 2 is disposed at the opening of the storage cavity 11, a first refrigeration unit 3 is provided in the cover 2, the first refrigeration unit 3 is used for refrigerating to the top of the storage cavity 11, a second refrigeration unit 4 is provided in the box 1, and the second refrigeration unit 4 is used for refrigerating to the bottom of the storage cavity 11, in the present invention, an upper refrigeration unit 3 and a lower refrigeration unit 4 are provided respectively on the cover 2 and the box 1, so that the storage cavity 11 can simultaneously satisfy refrigeration in upper and lower directions, and the first refrigeration unit 3 is disposed in the cover 2, so that while satisfying refrigeration requirements, does not affect the taking of the cord blood.

In one embodiment, the box body 1 and the cover body 2 may be connected in a hinged manner, and the hinged position may be disposed on a side away from the first locking groove 392.

In one embodiment, the box 1 and the cover 2 may be connected by an additional snap.

Referring to fig. 2, the first refrigeration unit 3 includes a first refrigeration cavity 31 and a plurality of first air holes 36 connected between the first refrigeration cavity 31 and the storage cavity 11, an opening communicated with the outside is formed in one side of the first refrigeration cavity 31, a first refrigeration box 32 with an opening formed in one side is slidably mounted in the first refrigeration cavity 31, the opening of the first refrigeration box 32 faces the first air hole 36, a first clamping plate 38 is arranged on a side surface of the first refrigeration box 32 facing the opening of the first refrigeration cavity 31, the first clamping plate 38 can provide a locking force acting on the box body 1, so that the cover body 2 is fixed on the box body 1, in actual transportation, the failure of the refrigerant due to too long transportation distance is inevitable, the refrigerant needs to be replaced at this time, but when the existing storage box is replaced, the box body 1 needs to be completely opened, and then the refrigerant is replaced, which can cause the temperature in the storage chamber 11 to change greatly, and the refrigeration box which can be drawn out is arranged in the utility model, so that the replacement of the refrigerant can be completed without opening the cover body 2, and the change of the temperature difference in the storage chamber 11 is reduced.

In one embodiment, the first fixture 391 and the second fixture 481 may be made of a material with good flexibility, such as plastic, so that the fixtures can be conveniently clamped into the corresponding clamping grooves, and the fixtures can be conveniently separated from the clamping grooves.

In an embodiment, an orifice plate 33 is disposed at an opening of the first refrigeration box 32, the orifice plate 33 may be slidably or hingedly mounted to the first refrigeration box 32, because when the first refrigeration box 32 is mounted, the opening of the first refrigeration box 32 faces downward, which may cause that a refrigerant is difficult to be fixed in the refrigeration box in a process of placing the first refrigeration box 32 into the first refrigeration cavity 31, and the technical problem may be solved by disposing the orifice plate 33, and meanwhile, refrigeration of the refrigerant may be conveyed to the storage cavity 11 through the first air hole 36 and the first through hole 35 by using a plurality of small holes on the orifice plate 33.

In one embodiment, in order to facilitate the transportation of the storage box, a handle is provided on the top of the cover 2, the handle can facilitate the holding of the storage box, and a strap can be connected between the two sides of the box body 1, and the storage box can be transported on the body through the strap.

Referring to fig. 2, a first sliding plate 37 is horizontally and slidably installed in the cover 2, a plurality of first through holes 35 are formed in the first sliding plate 37, at least one first spring 34 is connected between the first sliding plate 37 and the cover 2, when one end of the first clamping plate 38 is clamped in the box 1, the first clamping plate 38 provides the first sliding plate 37 with movement towards the spring direction, so that the first through holes 35 are in one-to-one communication with the first air holes 36, when one end of the first clamping plate 38 is disengaged from the first clamping groove 392, the first spring 34 drives one end of the first sliding plate 37 to extend out of the opening of the first refrigeration cavity 31, so that the first through holes 35 and the first air holes 36 are misaligned, and the first sliding plate 37 is arranged to directly close the quiet first air holes 36 connected to the storage cavity 11 and the first refrigeration cavity 31 when the refrigerant is replaced, so that the storage chamber 11 is in a completely closed state when the refrigerant is replaced, which can further reduce the variation in the temperature difference in the storage chamber 11.

Referring to fig. 2, one end of the first clamping plate 38 is hinged to the first refrigeration box 32, the other end of the first clamping plate 38 is provided with a first clamping block 391, the box body 1 is provided with a first clamping groove 392 opposite to the first clamping block 391, and the first clamping block 391 is matched with the first clamping groove 392, so that the first clamping plate 38 can fix the first refrigeration box 32, the cover body 2 can be fixed on the box body 1, and the position of the first sliding plate 37 can be controlled.

Referring to fig. 2, the second refrigeration unit 4 includes second refrigeration chamber 41 and a plurality of connection the second refrigeration chamber 41 with second gas pocket 45 between the storage chamber 11, second refrigeration chamber 41 one side is provided with the communicating opening in the external world, slidable mounting has one side to be provided with open-ended second refrigeration case 43 in the second refrigeration chamber 41 just second refrigeration case 43 opening orientation the second gas pocket 45, second refrigeration case 43 orientation a side of second refrigeration chamber 41 opening part is provided with second joint board 47, second joint board 47 can provide the locking force that acts on box 1, so that second refrigeration case 43 is fixed in the box 1, the same reason is for the below the second refrigeration unit 4 also need not with the lid 2 is opened and is changed the refrigerant.

Referring to fig. 2, a second sliding plate 46 is installed in the box body 1 in a horizontally sliding manner, a plurality of second through holes 44 are formed in the second sliding plate 46, at least one second spring 42 is connected between the second sliding plate 46 and the box body 1, when one end of the second clamping plate 47 is clamped in the box body 1, the second clamping plate 47 provides the second sliding plate 46 with movement towards the spring direction, so that the second through holes 44 are communicated with the second through holes 45 one by one, when one end of the second clamping plate 47 is separated from the second clamping groove 482, the second spring 42 drives one end of the second sliding plate 46 to extend out of the opening of the second refrigeration cavity 41, so that the second through holes 44 and the second through holes 45 are dislocated with each other, and similarly for the second refrigeration unit 4, when a refrigerant is replaced, the second through holes 45 can be closed, preventing outside air from entering the storage chamber 11.

Referring to fig. 2, one end of the second clamping plate 47 is hinged to the second refrigeration box 43, the other end of the second clamping plate 47 is provided with a second clamping block 481, the box body 1 is provided with a second clamping groove 482 opposite to the second clamping block 481, and the second clamping block 481 is matched with the second clamping groove 482.

Referring to fig. 2-3, a fixing assembly 5 is disposed in the storage chamber 11, the fixing assembly 5 includes a fixing plate 52 and a tray 51 sequentially arranged from top to bottom, the fixing plate 52 is provided with a plurality of mounting holes, the tray 51 is provided with a plurality of grooves at the top, the plurality of grooves correspond to the mounting holes in a one-to-one manner, for transporting umbilical cord blood stored in a test tube, test tubes can be inserted into the mounting holes one by one, and then the grooves provide a supporting force for the bottom of the test tubes, thereby enhancing the stability of the test tubes during transportation, if for bagged umbilical cord blood, a double-layer structure formed by the fixing plate 52 and the tray 51 can simultaneously store more umbilical cord blood, and for the tray 51, because of a plate-shaped structure without holes, the temperature of the bottom space of the tray 51 is different from the temperature of the top space of the tray 51, the second refrigerating unit 4 located at the bottom side of the storage chamber 11 can well cool the space at the bottom of the tray 51.

Referring to fig. 2, a plurality of dead levers 53 are installed perpendicularly to storage chamber 11 both sides, both sides dead lever 53 is last opposite all to be followed dead lever 53 length direction has seted up a plurality of fixed slots 54, fixed disk 52 with tray 51 orientation the both sides of dead lever 53 all are provided with and can block into the rotor plate 55 of fixed slot 54, through the design of dead lever 53, can conveniently adjust tray 51 with interval between the fixed disk 52, but both can be in position in the storage chamber 11, like this can satisfy fixed demand to the test tube homoenergetic of different length.

In one embodiment, the tray 51 and the fixed plate 52 are provided with notches on both sides, and the notches can clamp the fixing rods 53, so that the fixed plate 52 and the tray 51 are not easily deviated when the fixed plate 52 is placed in the storage chamber 11, and the installation is convenient.

In one embodiment, an extension block 56 is installed toward one side of the fixing rod 53 during the rotation of the rotation plate 55, an elastic block 57 is slidably installed in the extension block 56, the top of the elastic block 57 is formed in a hemispherical shape, and the top of the fixing groove 54 is also formed in a hemispherical shape, so that when the extension block 56 is snapped into the fixing groove 54, the elastic block 57 can be snapped into the top of the fixing groove 54 to prevent the rotation plate 55 from being separated from the fixing groove 54 during transportation, and the hemispherical shape can be used to manually reset the rotation plate 55 by slightly applying a certain force.

In one embodiment, the elastic block 57 may be made of a memory metal material, or a small spring for pushing the elastic block 57 to the fixing groove 54 may be connected between the elastic block 57 and the extension block 56.

In one embodiment, the first engaging plate 38 and the second engaging plate 47 are each provided with a pulling groove, and a finger can go deep into the pulling groove to pull the two engaging plates.

The working principle is as follows: when transportation is needed, the first clamping block 391 on the first clamping plate 38 is firstly separated from the clamping groove, so that the cover 2 and the box body 1 are unlocked, then the positions of the tray 51 and the fixed disc 52 on the fixed rod 53 are adjusted through the rotating plate 55, and then a test tube or a bag stored with umbilical cord blood is put on the fixed disc 52 and the tray 51;

when the refrigerant needs to be replaced or put in, the first clamping plate 38 and the second clamping plate 47 are separated from the corresponding clamping grooves, then the two clamping plates are pulled to draw out the first refrigeration box 32 and the second refrigeration box 43, at this time, the first sliding plate 37 and the second sliding plate 46 are respectively popped out of a part through the corresponding springs, so that the first through hole 35 is staggered with the first air hole 36, the second through hole 44 is staggered with the second air hole 45, so that the storage cavity 11 is sealed, the refrigerant is put in the first refrigeration box 32 and the second refrigeration box 43, then the two refrigeration boxes are put in the corresponding refrigeration cavities, after the temperatures of the two refrigeration cavities are reduced, the first clamping plate 38 and the second clamping plate 47 are rotated to push the first sliding plate 37 and the second sliding plate 46 to reset, so that the first through hole 35 is aligned with the first air hole 36 again, the second through hole 44 and the second air hole 45 are aligned again, and at this time, the first catch 391 is also caught in the first catch 392, and the second catch 481 is caught in the second catch 482.

The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model, and are considered to be within the scope of the utility model.

Claims

1. Cord blood stem cell case of keeping, including lid (2) and box (1), be provided with ascending storage chamber of opening (11) in box (1), lid (2) set up in storage chamber (11) opening part, its characterized in that: be provided with first refrigeration unit (3) in lid (2), first refrigeration unit (3) be used for to top refrigeration in storage chamber (11), be provided with second refrigeration unit (4) in box (1), second refrigeration unit (4) be used for to bottom refrigeration in storage chamber (11).

2. The cord blood stem cell storage container according to claim 1, wherein: first refrigeration unit (3) include first refrigeration chamber (31) and a plurality of connection first refrigeration chamber (31) with store first gas pocket (36) between chamber (11), first refrigeration chamber (31) one side is provided with external communicating opening, slidable mounting has one side to be provided with open-ended first refrigeration case (32) just in first refrigeration chamber (31) first refrigeration case (32) opening orientation first gas pocket (36), first refrigeration case (32) orientation a side of first refrigeration chamber (31) opening part is provided with first joint board (38), first joint board (38) can provide the effect in locking force on box (1), so that lid (2) are fixed in on box (1).

3. The cord blood stem cell storage container according to claim 2, wherein: a first sliding plate (37) is horizontally and movably arranged in the cover body (2), a plurality of first through holes (35) are arranged in the first sliding plate (37), at least one first spring (34) is connected between the first sliding plate (37) and the cover body (2), when one end of the first clamping plate (38) is clamped on the box body (1), the first clamping plate (38) gives the first sliding plate (37) to move towards the direction of the first spring (34), so that the first through holes (35) and the first air holes (36) are communicated one by one, when one end of the first clamping plate (38) is separated from the first clamping groove (392), the first spring (34) drives one end of the first sliding plate (37) to extend out of the opening of the first refrigeration cavity (31), so that the first through hole (35) and the first air hole (36) are mutually dislocated.

4. The cord blood stem cell storage container according to claim 2 or 3, characterized in that: one end of the first clamping plate (38) is hinged to the first refrigeration box (32), a first clamping block (391) is arranged at the other end of the first clamping plate (38), a first clamping groove (392) opposite to the first clamping block (391) is arranged on the box body (1), and the first clamping block (391) is matched with the first clamping groove (392).

5. The cord blood stem cell storage container according to claim 1, wherein: second refrigeration unit (4) include second refrigeration chamber (41) and a plurality of connection second refrigeration chamber (41) with second gas pocket (45) between storage chamber (11), second refrigeration chamber (41) one side is provided with external communicating opening, second refrigeration chamber (41) slidable mounting has one side to be provided with open-ended second refrigeration case (43) just second refrigeration case (43) opening orientation second gas pocket (45), second refrigeration case (43) orientation the side of second refrigeration chamber (41) opening part is provided with second joint board (47), second joint board (47) can provide the effect in locking force on box (1), so that second refrigeration case (43) are fixed in box (1).

6. The cord blood stem cell storage container according to claim 5, wherein: a second sliding plate (46) is installed in the box body (1) in a horizontal sliding manner, a plurality of second through holes (44) are arranged in the second sliding plate (46), at least one second spring (42) is connected between the second sliding plate (46) and the box body (1), when one end of the second clamping plate (47) is clamped on the box body (1), the second clamping plate (47) gives the second sliding plate (46) to move towards the direction of the second spring (42), so that the second through holes (44) and the second air holes (45) are communicated one by one, when one end of the second clamping plate (47) is separated from the second clamping groove (482), one end of the second sliding plate (46) is driven by the second spring (42) to extend out of the opening of the second refrigeration cavity (41), so that the second through hole (44) and the second air hole (45) are staggered.

7. The cord blood stem cell storage container according to claim 6, wherein: one end of the second clamping plate (47) is hinged to the second refrigeration box (43), a second clamping block (481) is arranged at the other end of the second clamping plate (47), a second clamping groove (482) opposite to the second clamping block (481) is formed in the box body (1), and the second clamping block (481) is matched with the second clamping groove (482).

8. The cord blood stem cell storage container according to claim 1, wherein: be provided with fixed subassembly (5) in storage chamber (11), fixed subassembly (5) include by last fixed disk (52) and tray (51) of setting gradually under to, a plurality of mounting holes have been seted up in fixed disk (52), tray (51) top is provided with a plurality of recesses, a plurality of the recess with mounting hole position one-to-one.

9. The cord blood stem cell storage container according to claim 8, wherein: a plurality of dead levers (53) are installed perpendicularly to storage chamber (11) both sides, both sides dead lever (53) are gone up opposite face and are all followed dead lever (53) length direction has seted up a plurality of fixed slots (54), fixed disk (52) with tray (51) orientation the both sides of dead lever (53) all are provided with and can block into rotor plate (55) of fixed slot (54).