CN219844580U

CN219844580U - Egg box based on it is convenient to adjust

Info

Publication number: CN219844580U
Application number: CN202320923025.3U
Authority: CN
Inventors: 闫乐艳; 陈哲; 孟俊; 周慧; 郭彬彬; 冯春刚; 孙雪峰
Original assignee: Jiangsu Academy of Agricultural Sciences
Current assignee: Jiangsu Academy of Agricultural Sciences
Priority date: 2023-04-23
Filing date: 2023-04-23
Publication date: 2023-10-20
Anticipated expiration: 2033-04-23

Abstract

The utility model discloses an egg illuminating box based on convenient adjustment, which comprises a main body assembly, wherein the main body assembly comprises an egg illuminating box, an illuminating lamp, an illuminating plate, a roller and a handle, the illuminating plate is positioned in the egg illuminating box, the illuminating lamp is fixed at the top of the illuminating plate, the roller is positioned at the bottom of the egg illuminating box, the handle is fixed with one side of the egg illuminating box, a placement assembly is arranged on the egg illuminating box and comprises a placement piece, an adjusting piece and a lifting piece, the placement piece is arranged at the top of the egg illuminating box, the adjusting piece is positioned on the placement piece, and the lifting piece is arranged at the bottom of the illuminating plate. The utility model has the beneficial effects that: the aperture of placing the egg hole on the plate can be adjusted through the arrangement of the placing component, so that eggs with different sizes can be stored and illuminated, the placing plate is not required to be replaced, and the use convenience of the device is improved.

Description

Egg box based on it is convenient to adjust

Technical Field

The utility model relates to the technical field of egg candles, in particular to an egg candles based on convenient adjustment.

Background

The egg lighting means that after hatching for a certain time, an egg lighting lamp is used for perspective of eggs under dark conditions to check embryo development conditions, egg lighting is an indispensable link in the hatching process of a hatching place, taking egg hatching as an example, the first egg lighting is carried out on the 5 th day after hatching, and by egg lighting, clear eggs and dead embryo eggs are picked up, fertilized eggs have normal embryo development, blood vessels are distributed radially, and the color is bright red; irregular blood arcs and blood rings are arranged in the dead embryo eggs, and radial blood vessels are not arranged; the method has the advantages that the clear eggs are lightened, the vascular net is omitted, the shadow of yolk can only be seen, the second egg irradiation is carried out on the 18 th day after hatching, the dead embryo eggs are picked up, the live embryo eggs can see embryo heart beating, thick blood vessels are arranged around the live embryo eggs, the embryo movement cannot be seen, the blood vessels cannot be seen around the air chamber, the clear eggs and the dead embryo eggs are rapidly and accurately identified, the dead embryo eggs are timely removed, the pollution of the dead embryo eggs in the hatching period can be reduced, the hatching efficiency of fertilized eggs is improved, and a plurality of rapid and efficient egg irradiation ideas are creatively provided for scientific researchers and industry practitioners.

The patent application number of China is: 202121920749.X "an integrated egg candling box for livestock and poultry based", the beneficial effects are: firstly, utilize the cooperation of light collection section of thick bamboo and stable telescopic, guarantee that operating personnel can obviously distinguish fertilized egg and unfertilized egg, further, thereby utilize the shielding of fixed curb plate to increase the performance behind the egg light-receiving, in the testing process, through setting up first cushion and second cushion at stable sleeve inner wall, furthest guarantees the laminating degree between stable sleeve and the egg, simultaneously, avoided the egg to be knocked with by stable sleeve, damage etc. the condition, further, utilized light collection section of thick bamboo to concentrate the bottom surface of shining the egg with the light, and then avoided light source surface and egg direct contact, the result of use of the device has been increased.

But the device has the same problem with most egg device that shines, can't adjust the aperture of placing the egg hole on the board when using, and the egg size difference of different poultry is huge, still need change when need throw light on the egg of equidimension not place the board and just can throw light on the egg, use comparatively inconveniently.

Disclosure of Invention

This section is intended to outline some aspects of embodiments of the utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description of the utility model and in the title of the utility model, which may not be used to limit the scope of the utility model.

The present utility model has been made in view of the above and/or existing problems in egg candles based on adjustment convenience.

Therefore, the utility model aims to solve the problems that the aperture of the egg hole on the placing plate cannot be adjusted when the device is used, and the placing plate is replaced to illuminate eggs when the eggs with different sizes are required to be illuminated, so that the device is inconvenient to use.

In order to solve the technical problems, the utility model provides the following technical scheme: an egg illuminating box based on adjustment convenience comprises a main body assembly, wherein the main body assembly comprises an egg illuminating box, an illuminating lamp, an illuminating plate, rollers and handles, the illuminating plate is positioned in the egg illuminating box, the illuminating lamp is fixed at the top of the illuminating plate, the rollers are positioned at the bottom of the egg illuminating box, and the handles are fixed with one side of the egg illuminating box;

the egg illuminating device comprises a placement component, an adjusting piece and a lifting piece, wherein the placement component is arranged on the egg illuminating box and comprises a placement piece, the adjusting piece and the lifting piece, the placement piece is arranged at the top of the egg illuminating box, the adjusting piece is arranged on the placement piece, and the lifting piece is arranged at the bottom of the illuminating plate.

As a preferable scheme of the egg candling box based on the adjustment convenience, the utility model comprises the following steps: the placing piece comprises a placing block and a placing strip, the placing block is arranged above the egg illuminating box, and the placing strip is fixed on one side of the placing block.

As a preferable scheme of the egg candling box based on the adjustment convenience, the utility model comprises the following steps: the placing piece further comprises a telescopic spring and a fixing frame, wherein the telescopic spring is fixed on one side of the placing block, the fixing frame is sleeved on the outer side of the telescopic spring, and the fixing frame is movably connected with the telescopic spring.

As a preferable scheme of the egg candling box based on the adjustment convenience, the utility model comprises the following steps: the placing piece further comprises a placing plate, the placing plate is located in the egg illuminating box, and the placing plate is movably connected with the egg illuminating box.

As a preferable scheme of the egg candling box based on the adjustment convenience, the utility model comprises the following steps: the adjusting piece comprises a first sliding block, a second sliding block and an adjusting handle, wherein a first sliding groove is formed in one side of the egg illuminating box, the first sliding block slides in the first sliding groove, a second sliding groove is formed in the other side of the egg illuminating box, the second sliding block slides in the second sliding groove, and the adjusting handle is fixed on one side of the first sliding block.

As a preferable scheme of the egg candling box based on the adjustment convenience, the utility model comprises the following steps: the adjusting piece further comprises a limiting plate, a limiting block and a connecting rod, wherein the limiting plate is fixed on one side of the egg illuminating box, a limiting hole is formed in the limiting plate, the limiting block is located in the limiting hole, and the connecting rod is fixed on one side of the limiting block.

As a preferable scheme of the egg candling box based on the adjustment convenience, the utility model comprises the following steps: the adjusting piece further comprises a pressure disc, a spring, a positioning frame and a pulling disc, wherein the pressure disc is sleeved on the outer side of the connecting rod, the spring is fixed on one side of the pressure disc, the positioning frame is fixed on one side of the first sliding block, and the pulling disc is fixed with one end of the connecting rod.

As a preferable scheme of the egg candling box based on the adjustment convenience, the utility model comprises the following steps: the lifting piece comprises a lifting sleeve and a lifting rod, the lifting sleeve is fixed at the bottom of the lighting plate, the lifting rod is inserted into the lifting sleeve, and the lifting rod is in threaded connection with the lifting sleeve.

As a preferable scheme of the egg candling box based on the adjustment convenience, the utility model comprises the following steps: the lifting piece further comprises a sliding sleeve and a positioning rod, the sliding sleeve is fixed with the bottom of the lighting plate, the positioning rod is inserted into the sliding sleeve, and the positioning rod is movably connected with the sliding sleeve.

As a preferable scheme of the egg candling box based on the adjustment convenience, the utility model comprises the following steps: the lifting piece further comprises a first gear, a second gear, a fixing plate and a crank, wherein the first gear is sleeved on the outer side of the lifting rod, the second gear is located on one side of the first gear, the first gear is meshed with the second gear, the fixing plate is rotatably connected with the bottom of the second gear through a bearing, and the crank is fixed to the top of the second gear.

The utility model has the beneficial effects that: the aperture of placing the egg hole on the plate can be adjusted through the arrangement of the placing component, so that eggs with different sizes can be stored and illuminated, the placing plate is not required to be replaced, and the use convenience of the device is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:

fig. 1 is an overall structure diagram of an egg candling box based on adjustment convenience.

Fig. 2 is a partially enlarged structural view of the eggcrate of fig. 1 at a based on convenience of adjustment.

Fig. 3 is an overall cross-sectional structure view of the egg candling bin based on the convenience of adjustment.

Fig. 4 is a sectional view of a fixing frame of the egg candling box based on convenience in adjustment.

Detailed Description

In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present utility model is not limited to the specific embodiments disclosed below.

Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the utility model. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Example 1

Referring to fig. 1 to 4, in a first embodiment of the present utility model, an egg candling box is provided, wherein the egg candling box includes a main body assembly 100 and a placement assembly 200, which cooperate to illuminate eggs having different sizes.

The main body assembly 100 comprises an egg illuminating box 101, an illuminating lamp 102, an illuminating plate 103, rollers 104 and a handle 105, wherein the illuminating plate 103 is positioned in the egg illuminating box 101, the illuminating lamp 102 is fixed at the top of the illuminating plate 103, the rollers 104 are positioned at the bottom of the egg illuminating box 101, and the handle 105 is fixed with one side of the egg illuminating box 101.

The egg illuminating box 101 is used for bearing objects, preventing the objects from shifting, the eggs can be seen through the arrangement of the illuminating lamps 102 to check the development condition of the egg embryo, the illuminating plates 103 are used for supporting the illuminating lamps 102 to prevent the illuminating lamps 102 from shifting, the number of the idler wheels 104 is four, the idler wheels are respectively positioned at four corners of the bottom of the egg illuminating box 101, the arrangement of the idler wheels 104 facilitates the movement of the egg illuminating box 101, and the arrangement of the handles 105 facilitates the pushing of the egg illuminating box 101 by a user, so that the egg illuminating box 101 can carry out illumination check on the eggs at different positions.

The placing component 200 is arranged on the egg candling box 101 and comprises a placing piece 201, an adjusting piece 202 and a lifting piece 203, wherein the placing piece 201 is arranged on the top of the egg candling box 101, the adjusting piece 202 is arranged on the placing piece 201, and the lifting piece 203 is arranged at the bottom of the lighting plate 103.

Can deposit the egg of variation in size through setting up of placing piece 201, need not change and place the board, the convenience of using has been improved, when needs place the egg on placing piece 201, can adjust the height of placing piece 201 through setting up of regulating part 202, thereby conveniently put the egg, after putting the egg on, descend placing piece 201 through regulating part 202, thereby can prevent that the egg from taking place to drop or being knocked down by external debris, can adjust the height of illumination lamp 102 through setting up of lifting part 203, thereby can clearly look over the condition and the embryo development condition of every egg.

Example 2

Referring to fig. 2 to 4, this embodiment is based on the previous embodiment, which is a second embodiment of the present utility model.

Specifically, the placement member 201 includes a placement block 201a and a placement bar 201b, the placement block 201a is disposed above the egg candling box 101, and the placement bar 201b is fixed to one side of the placement block 201 a.

Eggs can be stored through setting up of placing piece 201a, place piece 201a and be the inclined plane, deposit eggs that can be better prevent that eggs from taking place the skew or coming off, when placing the less eggs of volume, can prevent that eggs from taking place to drop through setting up of placing strip 201 b.

Specifically, the placement member 201 further includes a telescopic spring 201c and a fixing frame 201d, the telescopic spring 201c is fixed on one side of the placement block 201a, the fixing frame 201d is sleeved on the outer side of the telescopic spring 201c, and the fixing frame 201d is movably connected with the telescopic spring 201 c.

When placing the egg on placing piece 201a, can stretch extension spring 201c through the gravity of egg this moment, can drive through the resilience force of extension spring 201c and place piece 201a and extrude the egg this moment to can carry out the centre gripping to the egg, prevent that the egg from taking place to drop, fixed frame 201d is used for supporting extension spring 201c, prevents that extension spring 201c from taking place the skew.

Specifically, the placement member 201 further includes a placement plate 201e, where the placement plate 201e is located in the egg candling box 101, and the placement plate 201e is movably connected with the egg candling box 101.

The placement plate 201e is fixed to the bottom of the fixing frame 201d, and the placement plate 201e can support the fixing frame 201d to prevent the fixing frame 201d from falling off.

Specifically, the adjusting member 202 includes a first slider 202a, a second slider 202b, and an adjusting handle 202c, a first sliding slot S is formed on one side of the egg candling box 101, the first slider 202a slides in the first sliding slot S, a second sliding slot Y is formed on the other side of the egg candling box 101, the second slider 202b slides in the second sliding slot Y, and the adjusting handle 202c is fixed on one side of the first slider 202 a.

The first slider 202a is fixed on one side of the placing plate 201e, the second slider 202b is fixed on the other side of the placing plate 201e, when the height of the placing plate 201e needs to be adjusted, the adjusting handle 202c is pulled to drive the first slider 202a to move, the first slider 202a drives the placing plate 201e to move so as to adjust the height of the placing plate 201e, and when the height of the placing plate 201e is adjusted, the placing plate 201e can be supported through the arrangement of the second slider 202b, and the placing plate 201e is prevented from being deviated.

Specifically, the adjusting member 202 further includes a limiting plate 202d, a limiting block 202e and a connecting rod 202f, the limiting plate 202d is fixed on one side of the egg candling box 101, a limiting hole N is formed in the limiting plate 202d, the limiting block 202e is located in the limiting hole N, and the connecting rod 202f is fixed on one side of the limiting block 202 e.

When the height of the placing plate 201e is adjusted to the designated height, the first sliding block 202a can be limited by the clamping of the limiting block 202e and the limiting hole N so as to prevent the placing plate 201e from descending, the limiting plate 202d is used for supporting the limiting block 202e to prevent the limiting block 202e from shifting, and when the limiting of the first sliding block 202a needs to be relieved, the connecting rod 202f can be moved to drive the limiting block 202e to move and separate from the limiting hole N so as to relieve the limiting of the first sliding block 202 a.

Specifically, the adjusting member 202 further includes a pressure disc 202g, a spring 202h, a positioning frame 202i, and a pull disc 202j, where the pressure disc 202g is sleeved outside the connecting rod 202f, the spring 202h is fixed to one side of the pressure disc 202g, the positioning frame 202i is fixed to one side of the first slider 202a, and the pull disc 202j is fixed to one end of the connecting rod 202 f.

The spring 202h is sleeved on the outer side of the connecting rod 202f, the pressure disc 202g is driven to move when the connecting rod 202f is moved, an extrusion force is applied to the spring 202h when the pressure disc 202g moves, the limiting block 202e can be driven to move and separate from the limiting hole N through moving the connecting rod 202f, then the height of the placing plate 201e is adjusted to be at a specified height, at the moment, in order to prevent the placing plate 201e from descending, the limiting block 202e and the limiting hole N can be driven to be clamped again through the rebound force of the spring 202h by loosening the connecting rod 202f, the placing plate 201e can be prevented from descending, the connecting rod 202f is inserted on one side of the positioning frame 202i, the connecting rod 202f is movably connected with the positioning frame 202i, the positioning frame 202i is used for supporting the connecting rod 202f, the connecting rod 202f is prevented from being deviated, and the setting of the pulling disc 202j is convenient for a user to pull the connecting rod 202 f.

Example 3

Referring to fig. 1 and 3, a third embodiment of the present utility model is based on the first two embodiments.

Specifically, the lifting member 203 includes a lifting sleeve 203a and a lifting rod 203b, the lifting sleeve 203a is fixed at the bottom of the lighting board 103, the lifting rod 203b is inserted into the lifting sleeve 203a, and the lifting rod 203b is in threaded connection with the lifting sleeve 203 a.

When the height of the illumination lamp 102 needs to be adjusted, the illumination plate 103 can be driven to move through the arrangement of the lifting sleeve 203a, the illumination plate 103 can be driven to move to drive the illumination lamp 102 to move, so that the height of the illumination lamp 102 can be adjusted, the lifting rod 203b is rotatably connected with the inner wall of the egg illuminating box 101 through a bearing, and the lifting sleeve 203a can be driven to move through the rotation of the lifting rod 203 b.

Specifically, the lifting member 203 further includes a sliding sleeve 203c and a positioning rod 203d, the sliding sleeve 203c is fixed to the bottom of the lighting board 103, the positioning rod 203d is inserted into the sliding sleeve 203c, and the positioning rod 203d is movably connected with the sliding sleeve 203 c.

When the illumination plate 103 moves, the illumination plate 103 can be supported by the slide 203c to prevent the illumination plate 103 from being displaced, the positioning rod 203d is fixed to the inner wall of the egg candler 101, and the slide 203c can be supported by the positioning rod 203d to prevent the slide 203c from being displaced.

Specifically, the lifting member 203 further includes a first gear 203e, a second gear 203f, a fixing plate 203g, and a crank 203h, where the first gear 203e is sleeved on the outer side of the lifting rod 203b, the second gear 203f is located on one side of the first gear 203e, the first gear 203e is meshed with the second gear 203f, the fixing plate 203g is rotatably connected with the bottom of the second gear 203f through a bearing, and the crank 203h is fixed on the top of the second gear 203 f.

When the lifting rod 203b needs to be rotated, the lifting rod 203b can be driven to rotate through the rotation of the first gear 203e, the second gear 203f is used for driving the first gear 203e to rotate, the fixing plate 203g is fixed on one side of the egg candling box 101, the second gear 203f can be supported through the arrangement of the fixing plate 203g, the second gear 203f is prevented from falling off, and the second gear 203f is conveniently rotated by a user through the arrangement of the crank 203 h.

When the egg illuminating lamp is used, when the egg needs to be illuminated, the egg is firstly placed on the placing block 201a, the telescopic spring 201c can be stretched through the gravity of the egg, the placing block 201a can be driven to extrude the egg through the resilience force of the telescopic spring 201c, so that the egg can be clamped, the egg is prevented from falling off, after the egg is placed on the placing block 201a, the height of the placing plate 201e needs to be adjusted in order to prevent falling off or being knocked by external sundries, the pulling plate 202j is pulled, the pulling plate 202j drives the connecting rod 202f to move, the connecting rod 202f drives the pressure plate 202g to move, at the moment, an extruding force can be applied to the spring 202h through the movement of the pressure plate 202g, the connecting rod 202f moves to drive the limiting block 202e to be separated from the limiting hole N, the limitation of the first sliding block 202a is released, the placing plate 201e is lowered through the supporting of the adjusting handle 202c, the resilience force of the spring 202h can drive the limiting block 202e to be clamped with the limiting hole again, and the illuminating lamp 102 e can be prevented from being lowered.

When the condition of each egg and the embryo development condition need to be clearly checked, the height of the illumination lamp 102 needs to be adjusted at the moment, the crank 203h drives the second gear 203f to rotate through rotating the crank 203h, the first gear 203e can be driven to rotate through rotating the second gear 203f, the first gear 203e drives the lifting rod 203b to rotate, the lifting sleeve 203a can be moved through rotating the lifting rod 203b, the illumination plate 103 can be driven to move through moving the lifting sleeve 203a, the illumination lamp 102 can be driven to move through moving the illumination plate 103, the distance between the illumination lamp 102 and the eggs can be changed, and then the condition and the embryo development condition of each egg can be clearly checked.

It should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present utility model may be modified or substituted without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered in the scope of the claims of the present utility model.

Claims

1. Egg box that shines based on it is convenient to adjust, its characterized in that: comprising the steps of (a) a step of,

the main body assembly (100) comprises an egg illuminating box (101), an illuminating lamp (102), an illuminating plate (103), a roller (104) and a handle (105), wherein the illuminating plate (103) is positioned in the egg illuminating box (101), the illuminating lamp (102) is fixed at the top of the illuminating plate (103), the roller (104) is positioned at the bottom of the egg illuminating box (101), and the handle (105) is fixed with one side of the egg illuminating box (101);

the egg illuminating device comprises a placement component (200) which is arranged on an egg illuminating box (101) and comprises a placement piece (201), an adjusting piece (202) and a lifting piece (203), wherein the placement piece (201) is arranged at the top of the egg illuminating box (101), the adjusting piece (202) is positioned on the placement piece (201), and the lifting piece (203) is arranged at the bottom of the illuminating plate (103);

the placing piece (201) comprises a placing block (201 a) and a placing strip (201 b), the placing block (201 a) is arranged above the egg illuminating box (101), and the placing strip (201 b) is fixed on one side of the placing block (201 a);

the placing piece (201) further comprises a telescopic spring (201 c) and a fixing frame (201 d), the telescopic spring (201 c) is fixed on one side of the placing block (201 a), the fixing frame (201 d) is sleeved on the outer side of the telescopic spring (201 c), and the fixing frame (201 d) is movably connected with the telescopic spring (201 c).

2. An adjustment convenience based eggcrate as in claim 1, wherein: the placing piece (201) further comprises a placing plate (201 e), the placing plate (201 e) is located in the egg illuminating box (101), and the placing plate (201 e) is movably connected with the egg illuminating box (101).

3. An adjustment convenience based eggcrate as in claim 2, wherein: the adjusting piece (202) comprises a first sliding block (202 a), a second sliding block (202 b) and an adjusting handle (202 c), wherein a first sliding groove (S) is formed in one side of the egg illuminating box (101), the first sliding block (202 a) slides in the first sliding groove (S), a second sliding groove (Y) is formed in the other side of the egg illuminating box (101), the second sliding block (202 b) slides in the second sliding groove (Y), and the adjusting handle (202 c) is fixed on one side of the first sliding block (202 a).

4. An adjustment-convenience-based eggcrate as in claim 3, wherein: the adjusting piece (202) further comprises a limiting plate (202 d), a limiting block (202 e) and a connecting rod (202 f), wherein the limiting plate (202 d) is fixed on one side of the egg illuminating box (101), a limiting hole (N) is formed in the limiting plate (202 d), the limiting block (202 e) is located in the limiting hole (N), and the connecting rod (202 f) is fixed on one side of the limiting block (202 e).

5. An adjustment convenience based eggcrate as in claim 4, wherein: the adjusting piece (202) further comprises a pressure disc (202 g), a spring (202 h), a positioning frame (202 i) and a pulling disc (202 j), wherein the pressure disc (202 g) is sleeved on the outer side of the connecting rod (202 f), the spring (202 h) is fixed on one side of the pressure disc (202 g), the positioning frame (202 i) is fixed on one side of the first sliding block (202 a), and the pulling disc (202 j) is fixed with one end of the connecting rod (202 f).

6. An adjustment-convenience-based eggcrate as in claim 4 or 5, wherein: the lifting piece (203) comprises a lifting sleeve (203 a) and a lifting rod (203 b), the lifting sleeve (203 a) is fixed at the bottom of the lighting plate (103), the lifting rod (203 b) is inserted into the lifting sleeve (203 a), and the lifting rod (203 b) is in threaded connection with the lifting sleeve (203 a).

7. An adjustment convenience based eggcrate as in claim 6, wherein: the lifting piece (203) further comprises a sliding sleeve (203 c) and a positioning rod (203 d), the sliding sleeve (203 c) is fixed to the bottom of the lighting plate (103), the positioning rod (203 d) is inserted into the sliding sleeve (203 c), and the positioning rod (203 d) is movably connected with the sliding sleeve (203 c).

8. The adjustment convenience-based eggcrate of claim 7, wherein: lifting part (203) still includes first gear (203 e), second gear (203 f), fixed plate (203 g) and crank (203 h), first gear (203 e) cover is located the lifter (203 b) outside, second gear (203 f) are located first gear (203 e) one side, first gear (203 e) with second gear (203 f) meshing, fixed plate (203 g) pass through the bearing with second gear (203 f) bottom rotates to be connected, crank (203 h) are fixed in second gear (203 f) top.