阅读说明：本技术 方型铝壳电池的拘束托盘 (Restraint tray for square aluminum-shell battery ) 是由 张飞 于 2021-01-18 设计创作，主要内容包括：本申请涉及一种方型铝壳电池的拘束托盘,涉及汽车电池的生产制造领域,包括底座、前固定板、后固定板,设于前固定板、后固定板间的导向杆,导向杆上滑动连接有若干衬板,衬板间用于放置电池,前固定板朝向衬板的一侧滑动设置有压板,衬板包括中板、设于中板两侧的抵板,抵板为铝板,抵板通过铝面抵接中板,抵板背离中板的面上设有特氟龙层,特氟龙层用于抵接电池。中板的两侧板面设有安装槽,相邻中板的安装槽相互正对,安装槽内设有弹簧,弹簧的弹力驱使相邻的中板相互远离。通过在衬板上设置特氟龙层,能够防止酸液腐蚀抵板造成衬板损坏；通过设置弹簧,松开压板后各衬板能自动远离,便于取出电池；人员搬运托盘较为方便。(The utility model relates to a tray of restricting of square aluminum-shell battery relates to automobile battery's manufacturing field, the on-line screen storage device comprises a base, a front fixed plate, the after-fixing board, locate preceding fixed plate, the guide bar between the after-fixing board, sliding connection has a plurality of welts on the guide bar, be used for placing the battery between the welt, preceding fixed plate slides towards one side of welt and is provided with the clamp plate, the welt includes the medium plate, locate the tablet of medium plate both sides, the tablet is aluminum plate, the tablet passes through aluminium face butt medium plate, be equipped with special fluorine dragon layer on the face that the tablet deviates from the medium plate, special fluorine dragon layer is used. The both sides face of medium plate is equipped with the mounting groove, and the mounting groove of adjacent medium plate is just right each other, is equipped with the spring in the mounting groove, and the elasticity of spring orders about adjacent medium plate and keeps away from each other. The Teflon layer is arranged on the lining plate, so that the lining plate can be prevented from being damaged due to the fact that the acid liquor corrodes the supporting plate; by arranging the springs, the lining plates can be automatically far away after the pressing plate is loosened, so that the battery can be conveniently taken out; the personnel carry the tray comparatively conveniently.)

1. The utility model provides a tray of restricting of square aluminum-shell battery, includes base (1), front fixed plate (11), after-fixing board (12), locates guide bar (13) between front fixed plate (11), after-fixing board (12), sliding connection has a plurality of welts (2) on guide bar (13), be used for placing the battery between welt (2), one side slip that front fixed plate (11) orientation welt (2) is provided with clamp plate (14), its characterized in that: the lining plate (2) comprises a middle plate (3) and support plates (4) arranged on two sides of the middle plate (3), the support plates (4) are aluminum plates, the support plates (4) are connected with the middle plate (3) through aluminum surfaces in a supporting mode, Teflon layers (41) are arranged on the surfaces, deviating from the middle plate (3), of the support plates (4), and the Teflon layers (41) are used for abutting against batteries.

2. The containment tray for a square aluminum cell of claim 1, wherein: the mounting groove (35) are arranged on the two side plate surfaces of the middle plate (3), the mounting grooves (35) of the adjacent middle plates (3) are opposite to each other, a spring (36) is arranged in each mounting groove (35), and the elastic force of each spring (36) drives the adjacent middle plates (3) to be away from each other.

3. The containment tray for a square aluminum cell of claim 2, wherein: the bottom of medium plate (3) is equipped with supporting part (32) that extend to the face outward, place cushion (33) on supporting part (32), the top surface of cushion (33) is used for contacting the battery bottom surface.

4. The containment tray for square aluminum-can batteries of claim 3, wherein: cushion (33) run through along vertical direction and are equipped with ventilation hole (331), supporting part (32) run through along vertical direction and are equipped with ventilation groove (321), ventilation groove (321) are just to ventilation hole (331), ventilation groove (321) link up to the lateral wall of supporting part (32) to the direction of departing from medium plate (3) dorsad.

5. The containment tray for square aluminum-can batteries of claim 3, wherein: the top surface of the supporting part (32) comprises a supporting plane (322) and a supporting inclined plane (323), the supporting inclined plane (323) is farther away from the middle plate (3) than the supporting plane (322), the supporting inclined plane (323) extends upwards in an inclined mode along the direction departing from the middle plate (3), the supporting plane (322) and the supporting inclined plane (323) are connected through edges, and the bottom surface of the cushion block (33) is provided with a hollow groove (332); when the lining plate (2) clamps the battery, the cushion block (33) is in contact with the supporting plane (322), and when the lining plate (2) moves away from each other, the cushion block (33) is abutted against the supporting plane (323) and enables the cushion block (33) to move upwards.

6. The containment tray for a square aluminum cell of claim 1, wherein: the side wall of the middle plate (3) is provided with a convex frame (6), the length direction of the convex frame (6) is parallel to the sliding direction of the middle plate (3), the side wall of the convex frame (6) is provided with a groove (61) along the length direction of the side wall, a parting bead (62) is arranged in the groove (61), and the groove (61) is separated by the parting bead (62).

7. The containment tray for a square aluminum cell of claim 6, wherein: the edges of the two ends of the length of the convex frame (6) form guide surfaces (63) through chamfering.

8. The containment tray for a square aluminum cell of claim 1, wherein: the top surface of medium plate (3) is equipped with dodges mouth (34), dodge mouth (34) and run through two face of medium plate (3).

9. The containment tray for a square aluminum cell of claim 1, wherein: be equipped with limiting plate (5) between preceding fixed plate (11), clamp plate (14), limiting plate (5) can break away from between preceding fixed plate (11), clamp plate (14), limiting plate (5) are equipped with dodge guide bar (13), cylinder or hydro-cylinder dodge groove (51), dodge groove (51) and run through limiting plate (5) to base (1) direction.

Technical Field

The application relates to the field of production and manufacturing of automobile batteries, in particular to a restraint tray of a square aluminum shell battery.

Background

The energy of the new energy automobile comes from the storage battery, the automobile battery needs to use the battery restraint tray in the production process, the battery is extruded in the restraint tray, and under the combined action of heating, the battery is pressed to be shaped, and the thickness of the battery is kept at a designed value and is uniform and stable. The restraining tray can also restrain and shape the square aluminum-shell battery.

The tray of restricting among the correlation technique includes preceding fixed plate, after-fixing board, locates the guide bar between preceding fixed plate, after-fixing board, and sliding connection has a plurality of welts on the guide bar, is used for placing the battery between the welt, and one side that preceding fixed plate faced the welt is equipped with the clamp plate, and the clamp plate slides by cylinder or hydro-cylinder drive, makes the welt press from both sides tight battery when the clamp plate removes.

In order to meet the requirement of good heat conductivity of the lining plate in the related technology, the lining plate is generally made of metal, but when the battery leaks liquid accidentally, acid liquid in the battery flows out to easily corrode the lining plate.

Disclosure of Invention

In order to prevent acid liquor in the battery from flowing out to corrode the lining plate, the application provides a restraint tray of a square aluminum-shell battery.

The utility model provides a tray is restricted to square aluminum shell battery adopts following technical scheme:

the utility model provides a tray of restricting of square aluminum-shell battery, includes base, front fixed plate, after-fixing board, locates the guide bar between front fixed plate, after-fixing board, sliding connection has a plurality of welts on the guide bar, be used for placing the battery between the welt, one side slip that front fixed plate is towards the welt is provided with the clamp plate, the welt includes the medium plate, locates the support board of medium plate both sides, the support board is aluminum plate, the support board passes through aluminium face butt medium plate, be equipped with the special fluorine dragon layer on the face that the support board deviates from the medium plate, the special fluorine dragon layer is used for the butt battery.

Through adopting above-mentioned technical scheme, each welt is in the state of keeping away from each other in advance, and after having placed the battery between each welt, the clamp plate was driven to the cylinder or hydro-cylinder and removed, realized the welt with the clamp of all batteries. Then the whole restraint tray is moved into a heating furnace for heating, and the heating and shaping of the battery are carried out.

The supporting plate is used for contacting the battery, and the restraint tray has higher heat conductivity and heat dissipation speed by arranging the aluminum supporting plate, and can meet the requirement of high efficiency in the heating and heat dissipation stages. Through set up the Teflon layer on supporting the board, the battery is because of the quality problem during the weeping, sulphuric acid or other kinds of acidizing fluids are difficult for corroding the Teflon layer, and the Teflon layer plays the guard action to supporting the board, prevents that the welt from damaging.

Optionally, the two side surfaces of the middle plate are provided with mounting grooves, the mounting grooves of the adjacent middle plates are opposite to each other, a spring is arranged in the mounting groove, and the elastic force of the spring drives the adjacent middle plates to be away from each other.

By adopting the technical scheme, when the pressing plate moves to clamp the lining plate and the battery, the spring is in a compressed state; when the pressing plate moves towards the direction of the front fixing plate, the elastic force of the spring drives the adjacent middle plate to automatically keep away, so that the battery can be taken out conveniently.

Optionally, the bottom of the middle plate is provided with a supporting portion extending outward from the plate surface, a cushion block is placed on the supporting portion, and the top surface of the cushion block is used for contacting the bottom surface of the battery.

Through adopting above-mentioned technical scheme, support the battery through setting up the cushion, keep away from the back each other when adjacent supporting part, the cushion also can contact completely with the battery bottom surface, guarantees the support effect to the battery. The cushion block can be replaced by different thicknesses to adapt to batteries with different heights.

Optionally, the cushion runs through along vertical direction and is equipped with the ventilation hole, the supporting part runs through along vertical direction and is equipped with the ventilation groove, the ventilation groove just to the ventilation hole, the ventilation groove link up to the lateral wall of supporting part to the direction of keeping away from the medium plate.

Through adopting above-mentioned technical scheme, the ventilation hole that communicates each other, the ventilation groove be convenient for the circulation of air, and when two supporting parts were kept away from each other or were close to, because the shape in ventilation groove, the supporting part can not shelter from the ventilation hole, makes this tray of being restricted keep better heat-sinking capability in vertical direction.

Optionally, the top surface of the support portion includes a branch plane and a branch inclined plane, the branch inclined plane is further away from the middle plate than the branch plane, the branch inclined plane extends obliquely upward along a direction away from the middle plate, the branch plane and the branch inclined plane are connected through an edge, and a hollow groove is formed in the bottom surface of the cushion block; when the lining plate clamps the battery, the cushion block is in contact with the support plane, and when the lining plate moves away from each other, the cushion block is abutted to the support plane and enables the cushion block to move upwards.

Through adopting above-mentioned technical scheme, when the welt presss from both sides tight battery, cushion and branch plane contact. When the lining plate moves away from each other, the bottom of the cushion block is abutted to the inclined supporting surface and the cushion block moves upwards, so that the top end of the battery can protrude out of the top end of the lining plate, and a person can take out the battery conveniently.

Optionally, a protruding frame is arranged on the side wall of the middle plate, the length direction of the protruding frame is parallel to the sliding direction of the middle plate, a groove is arranged on the side wall of the protruding frame along the length direction of the protruding frame, a parting bead is arranged in the groove, and the groove is separated by the parting bead.

Through adopting above-mentioned technical scheme, the recess is used for supplying the finger embedding to the tray is restrained to the personnel of being convenient for carry originally, because the recess is arranged along with the medium plate and is equipped with a plurality ofly, then the personnel can lift up the tray from this length direction's of restraining the tray optional position, and is comparatively convenient. The parting bead is when strengthening protruding frame structural strength, and the parting bead can be spacing to the finger, prevents that the finger from skidding in the recess.

Optionally, the edges of the two ends of the length of the protruding frame form guide surfaces through chamfers.

Through adopting above-mentioned technical scheme, after the heat setting of battery is accomplished, if adjacent medium plate can't keep away from automatically, the in-process of tray is restrained in the transport to the personnel, and the accessible presses the spigot surface when stretching into the recess, makes adjacent medium plate keep away from each other, the taking out of follow-up battery of being convenient for.

Optionally, the top surface of the middle plate is provided with an avoiding opening, and the avoiding opening penetrates through the two plate surfaces of the middle plate.

Through adopting above-mentioned technical scheme, when needing to extract the department that supports on the medium plate, finger or manipulator can penetrate dodge in the mouth, are convenient for finger or manipulator to clip the department that supports and take out.

Optionally, a limiting plate is arranged between the front fixing plate and the pressing plate, the limiting plate can be separated from the front fixing plate and the pressing plate, the limiting plate is provided with a avoiding groove for avoiding the guide rod, the air cylinder or the oil cylinder, and the avoiding groove penetrates through the limiting plate towards the base.

Through adopting above-mentioned technical scheme, after the clamp plate removes and presss from both sides tight all welts, personnel can insert the limiting plate between preceding fixed plate, clamp plate, and limiting plate restriction clamp plate removes to the preceding fixed plate direction, and control cylinder or hydro-cylinder shorten this moment, and the clamp plate can not the reverse movement yet, makes this tray of restricting keep pressing from both sides the operating condition who presss from both sides tight design battery.

In summary, the present application includes at least one of the following beneficial technical effects:

1. by arranging the Teflon layer, the lining plate can be prevented from being damaged due to corrosion of the acid liquor on the supporting plate;

2. by arranging the springs, the lining plates can be automatically far away after the pressing plate is loosened, so that the battery can be conveniently taken out;

3. through setting up a slope, each welt is kept away from back cushion and can be automatic rebound, is convenient for take out of battery.

Drawings

Fig. 1 is an overall view of a restraining tray for a square aluminum-can battery according to the first embodiment.

Fig. 2 is a partial view of the first embodiment.

Fig. 3 is an exploded view of the liner of the first embodiment.

Fig. 4 is an enlarged view of fig. 1 at a.

Fig. 5 is a schematic view of the second embodiment, mainly highlighting the structure of the branch planes and the branch slopes.

Description of reference numerals: 1. a base; 11. a front fixing plate; 12. a rear fixing plate; 13. a guide bar; 2. a liner plate; 14. pressing a plate; 3. a middle plate; 4. a resisting plate; 30. a slide hole; 111. an access hole; 5. a limiting plate; 51. an avoidance groove; 31. a chute; 41. a Teflon layer; 42. a limiting strip; 43. heat dissipation holes; 32. a support portion; 33. cushion blocks; 331. a vent hole; 321. a ventilation slot; 34. avoiding the mouth; 35. mounting grooves; 36. a spring; 6. a convex frame; 61. a groove; 62. a parting strip; 63. a guide surface; 322. a branch plane; 323. a branch bevel; 332. and (6) hollowing out the groove.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The first embodiment is as follows:

the embodiment of the application discloses a restraint tray of a square aluminum-shell battery. Referring to fig. 1, the restraint tray of the square aluminum-shell battery includes a base 1, a front fixing plate 11 and a rear fixing plate 12 which are fixedly connected, the front fixing plate 11 and the rear fixing plate 12 are respectively located at two ends of the base 1, and the plate surfaces of the front fixing plate 11 and the rear fixing plate 12 are parallel to each other. A plurality of guide rods 13, a plurality of lining plates 2 and a pressure plate 14 are arranged between the front fixing plate 11 and the rear fixing plate 12.

Referring to fig. 2 and 3, all the guide rods 13 are parallel to each other, each lining plate 2 includes a middle plate 3 and two abutting plates 4 arranged on two sides of the middle plate 3, the lining plates 2 are used for placing batteries, and the abutting plates 4 are used for directly contacting the batteries. The lining plates 2 are arranged along the length direction of the guide rods 13, the middle plate 3 is provided with a sliding hole 30 for the guide rods 13 to pass through, and the middle plate 3 is in sliding connection with the guide rods 13 through the sliding hole 30.

The pressing plate 14 is positioned on one side of the front fixing plate 11 facing the lining plate 2, the pressing plate 14 is provided with a hole for the guide rod 13 to pass through, and the pressing plate 14 is connected with the guide rod 13 in a sliding way. The board of preceding fixed plate 11 runs through and is equipped with and stretches into hole 111, stretches into hole 111 and is used for supplying the piston rod of cylinder or hydro-cylinder to pass, and the tip butt clamp plate 14 boards of piston rod, is used for driving clamp plate 14 backward fixed plate 12 direction removal. After the pressing plate 14 is driven by the piston rod to move, the pressing plate 14 and the rear fixing plate 12 clamp all the lining plates 2 together with the battery therebetween.

Referring to fig. 1, this tray of restricting still includes the limiting plate 5 of independent setting, and limiting plate 5 can be followed and down inserted between preceding fixed plate 11, the clamp plate 14, also can extract from between preceding fixed plate 11, clamp plate 14. The plate surface of the limiting plate 5 is provided with an avoiding groove 51 in a penetrating mode, the avoiding groove 51 penetrates through the limiting plate 5 towards the base 1, and the avoiding groove 51 is used for avoiding the guide rod 13 and the piston rod of the air cylinder or the oil cylinder. After the clamp plate 14 removed, clamp plate 14 and 12 tight all welts 2 of back fixed plate, personnel can insert limiting plate 5 between preceding fixed plate 11, clamp plate 14, and limiting plate 5's thickness enables its two sides respectively butt preceding fixed plate 11, clamp plate 14 just, and limiting plate 5 restricts clamp plate 14 and moves to 11 directions of preceding fixed plate, and control cylinder or hydro-cylinder shorten this moment, and clamp plate 14 can not reverse movement yet, makes this operational state of restricting the tray and keeping tight design battery.

Referring to fig. 3, the middle plate 3 is provided with a sliding groove 31 in the vertical direction, and the abutting plate 4 is slidably connected with the sliding groove 31 through the edge of the plate surface, so that the abutting plate 4 and the middle plate 3 are disassembled and assembled; the person can pull up the abutting plate 4 to separate it from the middle plate 3. The support plate 4 is an aluminum plate, the support plate 4 is connected with the middle plate 3 through an aluminum surface, a Teflon layer 41 is arranged on the surface of the support plate 4 departing from the middle plate 3, Teflon is polytetrafluoroethylene, and the Teflon layer 41 is used for connecting with a battery in an abutting mode. Support and still be fixed with two spacing 42 on the face that board 4 deviates from medium plate 3, the length direction of spacing 42 is used for placing the battery along vertical direction between two spacing 42, and spacing 42 is spacing to the battery both sides, prevents that the face production of welt 2 from sliding along the battery. The plate surface of the abutting plate 4 is provided with a plurality of heat dissipation holes 43 in a penetrating manner, and the heat dissipation holes 43 are positioned at the outer sides of the two limiting strips 42.

The bottom of the middle plate 3 is provided with a support part 32 extending outward from the plate surface, the support part 32 is integrally fixed with the middle plate 3, and the length direction of the support part 32 is along the length direction of the middle plate 3. The cushion block 33 is placed on the supporting portion 32, the length direction of the cushion block 33 is also along the length direction of the middle plate 3, the width of the cushion block 33 is twice of the width of the supporting portion 32, two supporting portions 32 of adjacent middle plates 3 share one cushion block 33, the bottom surface of the cushion block 33 simultaneously contacts two nearby supporting portions 32, and the top surface of the cushion block 33 is used for contacting the bottom surface of the battery, so that the weight of the battery is supported.

Cushion 33 runs through along vertical direction and is equipped with ventilation hole 331, ventilation hole 331 is equipped with a plurality ofly along the length direction of cushion 33, and supporting part 32 runs through along vertical direction and is equipped with ventilation groove 321, and ventilation groove 321 is just to ventilation hole 331, and ventilation groove 321's quantity, position correspond with ventilation hole 331, and ventilation groove 321 link up to supporting part 32's lateral wall to the direction of keeping away from medium plate 3, and ventilation groove 321 is semi-circular, and ventilation hole 331 is circular. The spacer 33 can be replaced with a different thickness to accommodate batteries of different heights. When two supporting parts 32 are kept away from or are close to each other, because the shape of ventilation groove 321, ventilation hole 331 can not be sheltered from to supporting part 32, makes this restraint tray keep better heat-sinking capability in vertical direction.

The top surface of medium plate 3 is equipped with dodges mouthful 34, dodges mouthful 34 and runs through two faces of medium plate 3, dodges mouthful 34 and is equipped with a plurality ofly along the length direction of medium plate 3. The heights of the top surfaces of the resisting plate 4 and the middle plate 3 are the same, and the resisting plate 4 shields the two sides of the avoiding opening 34 in the horizontal direction. When the resisting plate 4 needs to be pulled out, fingers can penetrate into the avoiding opening 34, so that the fingers can clamp the resisting plate 4 to be taken out conveniently.

Referring to fig. 3 and 4, the two side surfaces of the middle plate 3 are provided with mounting grooves 35, the mounting grooves 35 are located at the proximal end position of the middle plate 3 in the length direction, the mounting grooves 35 of the adjacent middle plates 3 are opposite to each other, springs 36 are arranged in the mounting grooves 35, the length direction of the springs 36 is along the arrangement direction of the middle plate 3, the two ends of the springs 36 are respectively abutted to the bottoms of the two mounting grooves 35, the elastic force of the springs 36 drives the adjacent middle plates 3 to be away from each other, and the mounting grooves 35 and the springs 36 are. When the pressing plate 14 moves to clamp the lining plate 2 and the battery, the spring 36 is in a compressed state; when the pressing plate 14 moves toward the front fixing plate 11, the elastic force of the spring 36 drives the adjacent middle plates 3 away from each other, which facilitates the removal of the battery.

The side wall of medium plate 3 is integrative to be fixed with protruding frame 6, and protruding frame 6 is located medium plate 3 length direction's tip, and the length direction of protruding frame 6 is parallel with the sliding direction of medium plate 3, and when all medium plates 3 were close to each other to spacing, all protruding frames 6 even become a rectangular just. The lateral wall of protruding frame 6 is equipped with recess 61 along its length direction, and outside the lateral wall of restricting the tray was faced in the notch orientation of recess 61, is equipped with parting bead 62 in the recess 61, and parting bead 62 is vertical along extending and be two parts with recess 61 partition. The edges of the two ends of the length of the protruding frames 6 form guide surfaces 63 through chamfers, and the guide surfaces 63 of adjacent protruding frames 6 are combined to form a right-angled notch which faces the outside of the restraint tray.

Referring to fig. 4, a guide rod 13 is pressed above the ledge 6, and the guide rod 13 is in sliding contact with the ledge 6 to provide a guide for the sliding of the middle plate 3. Recess 61 is used for supplying the finger embedding to this tray of restraining of personnel's transport of being convenient for, because recess 61 arranges and is equipped with a plurality ofly, then the tray is lifted up to the optional position that the length direction of this tray of restraining can be followed to the personnel, and is comparatively convenient. The division bar 62 can limit the finger while reinforcing the structural strength of the convex frame 6, and the finger is prevented from sliding in the groove 61.

The implementation principle of the restraint tray of the square aluminum-shell battery of the embodiment of the application is as follows: after the lining plates 2 are in a state of being away from each other in advance, and the batteries are placed among the lining plates 2, the piston rod end of the air cylinder or the oil cylinder penetrates through the extension hole 111 and then abuts against the pressing plate 14, the air cylinder or the oil cylinder extends, the pressing plate 14 moves towards the direction of the rear fixing plate 12, and the lining plates 2 clamp all the batteries. Insert limiting plate 5 after pressing from both sides tight completion, the battery keeps the state of being compressed tightly, then makes cylinder and tray separation, moves whole tray of restricting to heating furnace in and heats. After the batteries are heated and shaped, the restraint tray is taken out of the heating furnace, after the restraint tray finishes heat dissipation, the limiting plate 5 is pulled out, the elastic force of the spring 36 drives the adjacent lining plates 2 to be away from each other, and then the batteries can be taken out.

This restraint tray has higher heat conductivity and radiating rate through setting up aluminium system to board 4, all can satisfy the requirement of high efficiency at heating, heat dissipation stage. Through set up teflon layer 41 on resisting board 4, when the battery leaked because of the quality problem, sulphuric acid or other kinds of acidizing fluids were difficult for corroding teflon layer 41, and teflon layer 41 plays the guard action to resisting board 4, prevents to resist board 4 and damages.

Example two:

the second embodiment of the application discloses a restraint tray of a square aluminum-shell battery. Referring to fig. 5, the difference between the second embodiment and the first embodiment is: the top surface of the support part 32 includes a support plane 322 and a support slope 323, the support slope 323 is farther from the middle plate 3 than the support plane 322, the length directions of the support plane 322 and the support slope 323 are along the length direction of the support part 32. The branch plane 322 is a horizontal plane; along the direction of deviating from medium plate 3, prop up inclined plane 323 and extend upwards in the slope, prop up flat plane 322, prop up inclined plane 323 and meet through the edge, the bottom surface of cushion 33 is equipped with fretwork groove 332, prop up inclined plane 323 and can get into in the fretwork groove 332.

When the lining plate 2 clamps the battery, the cushion block 33 is contacted with the supporting plane 322, and the supporting inclined plane 323 enters the hollow-out groove 332. When the lining plates 2 move away from each other, the bottoms of the cushion blocks 33 abut against the supporting inclined planes 323, the cushion blocks 33 move upwards, and then the top ends of the batteries can protrude out of the top ends of the lining plates 2, so that the batteries can be taken out conveniently by personnel.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.