CN114834233A

CN114834233A - Battery fixing device and engineering machinery

Info

Publication number: CN114834233A
Application number: CN202210545920.6A
Authority: CN
Inventors: 贺根申
Original assignee: Hunan Sany Port Equipment Co Ltd; Sany Marine Heavy Industry Co Ltd
Current assignee: Hunan Sany Port Equipment Co Ltd; Sany Marine Heavy Industry Co Ltd
Priority date: 2022-05-19
Filing date: 2022-05-19
Publication date: 2022-08-02

Abstract

The application discloses a battery fixing device and engineering machinery, wherein the battery fixing device is used for fixing a battery and comprises a box body, a supporting frame, a roller and a guide rail, and the box body is provided with an opening; the support frame is arranged in the box body and used for placing a battery; the rollers are arranged on two sides of the support frame; the guide rail is arranged on the box body; the support frame is connected with the guide rail in a sliding way through the roller so that the support frame can enter and exit the box body through the opening of the box body; the end of the guide rail close to the box body and provided with the opening is provided with a height difference with the end of the guide rail far away from the box body and provided with the opening. When operating personnel changed the battery, operating personnel only need pull out or push the support frame, and the gyro wheel of being connected with the support frame can slide along the guide rail, makes the support frame follow the box roll-off or slide-in to it is more laborsaving when making operating personnel change the battery, reduces operating personnel's working strength.

Description

Battery fixing device and engineering machinery

Technical Field

The application relates to the technical field of engineering machinery, in particular to a battery fixing device and engineering machinery provided with the battery fixing device.

Background

At present, the electromotion is carried to an unprecedented high point, the scale of a power battery is already emerged at the technical front, various vehicles, even ships and aircrafts seek to use electric energy as power, and the requirements on engineering mechanical equipment, the maintainability, the space, the interchangeability and the like of the power battery are met. As is known, when the engineering machinery works, the required power is large, and the power battery volume and the weight of the engineering machinery are large, so that continuous power can be provided for the work of the engineering machinery. Because engineering machine tool power battery volume and weight are great, need operating personnel to overcome frictional force and manually take out the battery from the battery frame, then install, operating personnel can produce when changing the battery hard, the problem that working strength is big.

Therefore, how to save labor when the power battery of the engineering machinery is replaced is a problem that needs to be solved by the technical personnel in the field.

Disclosure of Invention

In view of the above, the present application provides a battery fixing device. The application also provides engineering machinery comprising the battery fixing device.

In order to achieve the above purpose, the present application provides the following technical solutions:

a battery holding device for holding a battery, comprising:

a box body provided with an opening;

the support frame is arranged in the box body and used for placing the battery;

the rollers are arranged on two sides of the support frame;

the guide rail is arranged on the box body;

the support frame is connected with the guide rail in a sliding mode through the idler wheel, so that the support frame can enter and exit the box body through the opening of the box body; the guide rail is close to the one end that the box was equipped with the open-ended with the guide rail is kept away from the one end that the box was equipped with the open-ended is equipped with the difference in height.

Preferably, the box body is movably connected with a door body, the door body can seal and open the box body through movement, and when the box body is opened, the hovering door body can form a shielding shed.

Preferably, the support frame comprises: the locking piece can enable the supporting frame to be detachably connected with the box body; the first limiting piece is fixedly connected with the supporting frame;

the box body comprises: the mounting part is matched with the locking part and used for providing a mounting position for the locking part; and the second limiting part is abutted against the first limiting part and used for limiting the position of the first limiting part.

Preferably, two sides of the support frame are respectively provided with one roller, and the rollers are positioned in the middle of the support frame.

Preferably, the battery fixing device further includes: the connecting piece, the connecting piece sets up on the box, the box is equipped with open-ended one end and is the open end, the connecting piece is followed the open end extends to and keeps away from the one end of open end.

Preferably, the guide rail includes:

the first blocking part is arranged at one end of the guide rail, which is far away from the opening end, and is used for preventing the roller from sliding out along the leading-in direction of the guide rail;

and the second blocking part is arranged at one end, close to the opening end, of the guide rail and used for preventing the roller from sliding out along the guide direction of the guide rail.

Preferably, the guide rail has a guide surface contacting the roller, the guide surface being inclined downward from an end of the second stopper to an end of the first stopper.

Preferably, connecting shafts are arranged on two sides of the supporting frame, the roller is sleeved on the connecting shafts, and blocking blocks for preventing the roller from being separated are arranged at one ends, close to the roller, of the connecting shafts.

Preferably, the battery fixing device further includes:

the hanging buckles are arranged on two sides of the box body;

and the observation port is arranged at the top of the hanging buckle, and the hanging state of the hanging buckle can be observed through the observation port.

The utility model provides an engineering machine tool, includes above-mentioned battery fixing device and with hang the support of detaining the adaptation, the box passes through hang the knot articulate in engineering machine tool on the support.

The battery fixing device is used for fixing a battery and is provided with a box body, a supporting frame, a roller and a guide rail; in the application, the box body is provided with an opening, the support frame is arranged in the box body and used for placing a battery; the rollers are arranged on two sides of the support frame; the guide rail is arranged on the box body; the support frame is connected with the guide rail in a sliding manner through the roller, so that the support frame can enter and exit the box body through the opening of the box body; the end of the guide rail close to the box body and provided with the opening is provided with a height difference with the end of the guide rail far away from the box body and provided with the opening. When an operator replaces the battery, the operator only needs to pull out or push in the support frame, the roller connected with the support frame can slide along the guide rail, so that the support frame slides out of or in the box body, and the operator can replace the battery more conveniently; because of the height difference at the two ends of the guide rail, when the support frame is pulled out or pushed in, the gravity of the support frame can generate component force along the moving direction of the guide rail, so that the labor is saved when an operator pulls out or pushes in the support frame, the labor is saved when the battery is replaced, and the working strength of the operator is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a front view of a battery fixing device provided in an embodiment of the present disclosure after being installed in a construction machine;

FIG. 2 is a perspective view of the battery securing device with the door body in an open position;

FIG. 3 is a perspective view of the battery holder without the door mounted thereto;

FIG. 4 is a side view of the battery fixture after installation of a single support bracket;

FIG. 5 is a side view of the battery holder with the single support bracket slid out;

FIG. 6 is a side view of the battery fixing device with the door body in an open state;

FIG. 7 is a front view of the battery holder with a single support bracket for receiving a battery;

FIG. 8 is an enlarged view of the battery holder A;

fig. 9 is a side view of a battery fixture rail.

In fig. 1-9:

1-battery, 2-box, 21-second limiting part, 22-mounting part, 3-support frame, 31-locking part, 32-first limiting part, 33-connecting shaft, 34-blocking block, 4-roller, 5-guide rail, 51-first blocking part, 52-second blocking part, 6-door body, 7-connecting part, 8-bracket, 9-hanging buckle and 10-viewing opening.

Detailed Description

The application provides a battery fixing device. The application also provides engineering machinery comprising the battery fixing device.

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

As shown in fig. 1 to 5, the present embodiment provides a battery fixing device for fixing a battery 1, including: the device comprises a box body 2, a support frame 3, rollers 4 and a guide rail 5; the box body 2 is provided with an opening; the support frame 3 is arranged in the box body 2, and the support frame 3 is used for placing the battery 1; the rollers 4 are arranged on two sides of the support frame 3; the guide rail 5 is arranged on the box body 2; the support frame 3 is connected with the guide rail 5 in a sliding manner through the roller 4, so that the support frame 3 enters and exits the box body 2 through the opening of the box body 2; the end of the guide rail 5 close to the box body 2 and provided with the opening and the end of the guide rail 5 far away from the box body 2 and provided with the opening are provided with height difference.

Box 2 is equipped with the opening, and guide rail 5 installs on the lateral wall of box 2, and gyro wheel 4 slides the butt with guide rail 5, and support frame 3 is connected with gyro wheel 4, then support frame 3 can slide along guide rail 5 through gyro wheel 4, and support frame 3 is used for placing battery 1, so support frame 3 can drive battery 1 and slide in box 2 jointly, and support frame 3 can be followed box 2's opening business turn over box 2 with battery 1 together promptly.

It should be noted that the height difference provided at the two ends of the guide rail 5 includes the following two embodiments: when the position of the end, close to the box body 2, of the guide rail 5, provided with the opening is higher than the position of the end, far away from the box body 2, of the guide rail 5, when an operator pushes the support frame 3 to enter the box body 2, component force in the moving direction of the guide rail 5 is generated due to the gravity of the support frame 3, and therefore the operator can push the support frame 3 into the box body 2 more easily; or, when the end of the guide rail 5 close to the box 2 with the opening is lower than the end of the guide rail 5 far away from the box 2 with the opening, and when the operator pulls the support frame 3 out of the box 2, the operator can generate a component force along the moving direction of the guide rail 5 due to the gravity of the support frame 3, so that the operator can pull the support frame 3 out of the box 2 more easily.

The battery fixing device is used for fixing a battery 1 and is provided with a box body 2, a support frame 3, a roller 4 and a guide rail 5; in the application, the box body 2 is provided with an opening, the support frame 3 is arranged in the box body 2, and the support frame 3 is used for placing the battery 1; the roller 4 is connected with the support frame 3; the guide rail 5 is arranged on the box body 2; the support frame 3 is connected with the guide rail 5 in a sliding manner through the roller 4, so that the support frame 3 enters and exits the box body 2 through the opening of the box body 2; the end of the guide rail 5 close to the box body 2 and provided with the opening and the end of the guide rail 5 far away from the box body 2 and provided with the opening are provided with height difference. When an operator replaces the battery 1, the operator only needs to pull out or push in the support frame 3, the roller 4 connected with the support frame 3 slides along the guide rail 5, so that the support frame 3 slides out of or into the box body 2, and the operator is more labor-saving when replacing the battery 1; because of the height difference between the two ends of the guide rail 5, when the support frame 3 is pulled out or pushed in, the gravity of the support frame 3 can generate component force along the direction of the guide rail 5, so that the labor is saved when an operator pulls out or pushes in the support frame 3, the labor is saved when the battery 1 is replaced, and the working strength of the operator is reduced.

In some embodiments of the present application, please refer to fig. 2 and fig. 6 together, the box body 2 is movably connected with the door body 6, the door body 6 can realize the closing and opening of the box body 2 through the movement, and when the box body 2 is opened, the hovering door body 6 can form a shielding shed.

It should be noted that, when the door body 6 is in the open state, the hovering door body 6 can form a shelter, and the present embodiment does not limit the structure of the shelter, and the shelter means that the door body 6 can play a role in sheltering from wind and rain in the hovering state. When the door body 6 is in a closed state, the door body 6 is buckled on one side of the box body 2, which is provided with an opening, so that the battery fixing device is protected, and the battery 1 can be prevented from sliding out of the support frame 3 or the support frame 3 can be prevented from sliding out of the box body 2.

It should be noted that the movable connection mode of the box body 2 and the door body 6 is not exclusive, and the movable connection mode may be one or more of a hinge connection, a rotating shaft connection and a hydraulic connection.

In some embodiments of the present application, referring to fig. 4 and 5, the supporting frame 3 includes: a locking member 31 which can detachably connect the support frame 3 with the box body 2; the first limiting part 32 is fixedly connected with the support frame 3; the case 2 includes: a mounting member 22 fitted with the locker 31 for providing a mounting position for the locker 31; the second limiting member 21 abuts against the first limiting member 32 and is used for limiting the position of the first limiting member 32.

It should be noted that, after the battery 1 is installed on the supporting frame 3, the supporting frame 3 is pushed into the box 2 along the guide rail 5, and when the battery is pushed to the contact between the first limiting member 32 and the second limiting member 21, the rotation driving locking member 31 is locked with the mounting member 22, and in the process of locking the rotation driving locking member 31 and the mounting member 22, the supporting frame 3 can move relative to the box 2, and also drives the first limiting member 32 fixedly connected with the supporting frame 3 to move relative to the box 2, so that the first limiting member 32 and the second limiting member 21 are more closely limited, and the supporting frame 3 is fixed on the box 2. When the lock needs to be released, the support frame 3 can slide in the box body 2 only by reversely rotating and driving the locking piece 31.

Locking spacing through locking member 31 and installed part 22 on box 2, locking member 31 can form the locking force with box 2 this moment, will be in support frame 3 and box 2 fixed connection of box 2 open end one side, the one end that box 2 open end was kept away from to support frame 3 has the trend of perk that makes progress, second locating part 21 can prevent first locating part 32 perk that makes progress, first locating part 32 can form the oblique wedge effort with second locating part 21, fix support frame 3 on box 2 jointly.

Provide an optional mode in this embodiment, retaining member 31 is locking screw, be equipped with in the installed part 22 with the screw thread of locking screw adaptation, the wedge piece of 32 types of trigonometry of first locating part, second locating part 21 is C style of calligraphy connecting block, lock nut and the installed part 22 locking back that is equipped with the screw thread, the last downside of C style of calligraphy connecting block can be spacing with the fast both sides of type of trigonometry wedge, C style of calligraphy connecting block can play simultaneously and prevent first locating part 32 perk and tenesmus effect.

It should be further noted that the structure or shape of the second limiting member 21 is not exclusive, and the second limiting member 21 may be one of a C-shaped structure, an inverted L-shaped structure, and a bump structure, or a combination thereof.

In addition, retaining member 31 and mounting member 22 may be of other configurations or otherwise provided, such as: the locking member 31 and the mounting member 22 are limited through clamping, and the locking member 31 and the mounting member 22 are limited through locking hooks; correspondingly, the first limiting member 32 and the second limiting member 21 may have other structures or be disposed in other manners, for example: the first limiting part 32 and the second limiting part 21 are limited by a magnetic attraction structure.

In some embodiments of the present application, please refer to fig. 4 and 5, two rollers 4 are disposed on two sides of the supporting frame 3, and the rollers 4 are located in the middle of the supporting frame 3.

Through 3 both sides of support frame respectively set up a gyro wheel 4, and gyro wheel 4 sets up the middle part at support frame 3, can guarantee that support frame 3 passes through gyro wheel 4 when moving on guide rail 5, makes 3 both sides atress of support frame balanced, and the position of support frame 3 is in horizontal position when being convenient for operating personnel pull out or pushing support frame 3, and is more laborsaving when making operating personnel pull out or push support frame 3.

It should be noted that, the roller 4 is not disposed in the middle of the support frame 3, and the operator can pull out the support frame 3, but needs to provide a supporting force or pressure to keep the support frame 3 stable, and can pull out the support frame 3 smoothly.

In some embodiments of the present application, referring to fig. 2 and fig. 3, the battery fixing apparatus further includes: connecting piece 7, connecting piece 7 set up on box 2, and box 2 is equipped with open-ended one end and is the open end, and connecting piece 7 extends to the one end of keeping away from box 2 open end from the open end of box 2.

In this embodiment, an optional manner is provided, in which the connecting member 7 is a long bolt locking structure, the connecting member 7 is disposed in the middle of the side surface of the box body 2, and the connecting member 7 is disposed in a full length from the open end of the box body 2 to the end far away from the open end.

Through set up connecting piece 7 on box 2, strengthen the holistic intensity of box 2 on the one hand, on the other hand is convenient for to the dismouting of box 2.

Furthermore, the connecting element 7 can also be of other construction or be arranged in other ways, for example: the connecting piece 7 can be one or more of a threaded piece, a magnetic piece and a clamping piece.

In some embodiments of the present application, referring to fig. 5, fig. 6 and fig. 9, the guide rail 5 includes: the first blocking part 51 is arranged at one end of the guide rail 5 far away from the opening end of the box body 2, and is used for preventing the roller 4 from sliding out along the leading-in direction of the guide rail 5; the second blocking portion 52 is disposed at one end of the guide rail 5 near the open end, and is used for preventing the roller 4 from sliding out along the guiding direction of the guide rail 5.

It should be noted that, when the supporting frame 3 slides into the box body 2 along the guide rail 5, the first blocking portion 51 may block the roller 4 connected to the supporting frame 3, and when the first blocking portion 51 contacts the roller 4, the mounting position of the supporting frame 3 is at this time; when the supporting frame 3 slides out of the box body 2 along the guide rail 5, the second blocking portion 52 can play a role in blocking the roller 4 connected with the supporting frame 3, and when the second blocking portion 52 contacts with the roller 4, the supporting frame 3 can be detached.

In the present embodiment, an optional manner is provided, in which the height of the first blocking portion 51 is higher than that of the second blocking portion 52, and because there is a height difference between the first blocking portion 51 and the second blocking portion 52, and because the height differences between the roller 4 and the first blocking portion 51 and the second blocking portion 52 are different, the first blocking portion 51 can prevent the roller 4 from sliding out along the guide rail 5 introduction direction and the vertical guide rail 5 direction; and the second blocking part 52 can only prevent the roller 4 from sliding out along the guide rail 5, and the roller 4 can slide out along the direction vertical to the guide rail 5 under the action of external force, so that the support frame 3 can be detached and installed.

In this embodiment, another alternative is provided, in which the first blocking portion 51 is provided with a blocking plate for preventing the roller 4 from sliding out along the vertical guide rail 5, and the second blocking portion 52 is provided with a guide portion for sliding out the roller 4 along a direction perpendicular to the guide rail 5.

Through setting up first stopper 51 and second stopper 52, can block gyro wheel 4 at guide rail 5 both ends along guide rail 5 direction roll-off, play the guard action to gyro wheel 4 and the support frame 3 of being connected with gyro wheel 4.

In some embodiments of the present application, referring to fig. 5, 6 and 9, the guide rail 5 has a guide surface 53 contacting the roller 4, and the guide surface 53 is inclined downward from the end of the second stopping portion 52 to the end of the first stopping portion 51.

In this embodiment, an alternative is provided, in which the guide rail 5 comprises a guide surface 53 and a bottom surface facing away from the guide surface 53, the guide surface 53 is an inclined surface, and the bottom surface is a horizontal surface, in which case the guide surface 53 can perform a guiding function.

In the present embodiment, another alternative is provided, in which the guide rail 5 includes a guide surface 53 and a bottom surface away from the guide surface 53, the guide surface 53 is disposed parallel to the bottom surface, and the guide rail 5 is integrally and obliquely fixed on the side surface of the box body 2, so that the guide surface 53 is an inclined surface relative to the horizontal plane, and the guide surface 53 plays a role of guiding.

In the process of sliding the support frame 3 into the box body 2 along the guide rail 5, the gravity of the support frame 3 can generate component force along the moving direction of the guide rail 5 by arranging the guide surface 53, so that the effect of saving labor is achieved; and because the guide surface 53 inclines downwards from the end of the second blocking part 52 to the end of the first blocking part 51, when the support frame 3 is limited, the support frame 3 and the box body 2 are clamped more firmly due to the existence of the guide surface 53.

In some embodiments of the present application, please refer to fig. 2, fig. 7 and fig. 8, the support frame 3 is provided with connecting shafts 33 at two sides thereof, the roller 4 is sleeved on the connecting shafts 33, and one end of the connecting shafts 33 close to the roller 4 is provided with a stop block 34 for preventing the roller 4 from being disengaged.

It should be noted that the connecting shafts 33 are connected to two sides of the supporting frame 3, the rollers 4 are sleeved on the connecting shafts 33, and the rollers 4 are slidably connected with the guide rail 5, so that the supporting frame 3 is slidably connected with the guide rail 5.

The stopper 34 prevents the roller 4 from being separated from the connecting shaft 33, thereby protecting the roller 4.

Further, the end surface shape of the stopper 34 is not exclusive, and the end surface shape of the stopper 34 may be one or more of triangular, square, and circular.

In some embodiments of the present application, please refer to fig. 2 and fig. 6, the door 6 is a transparent door.

It should be noted that, the operator can observe and detect the internal state of the box body 2 in real time through the perspective door body, and can find out faults in time and maintain the box body in time.

It should be further noted that the door body 6 is partially set as a perspective door body, or the door body 6 is integrally set as the perspective door body 6, or the side wall of the box body 2 is set as a perspective side wall.

In some embodiments of the present application, referring to fig. 2 and fig. 3, the battery fixing apparatus further includes: the hanging buckle 9 and the observation port 10, the hanging buckle 9 is arranged at two sides of the box body 2; the observation port 10 is provided at the top of the hanging buckle 9, and the hanging state of the hanging buckle 9 can be observed through the observation port 10.

It should be noted that the hanging buckle 9 is convexly arranged on the box body 2, the hanging buckle 9 is used for being connected with engineering machinery, a blocking plate for preventing the battery fixing device from falling off is arranged on one side of the hanging buckle 9, which deviates from the box body 2, and convenience of connection of the battery fixing device and the engineering machinery is improved through the arrangement of the hanging buckle 9.

An operator can observe the hanging buckle 9 and the bracket 8 (described in detail later) through the observation port 10, can observe whether the hanging buckle 9 is hung on the bracket 8 or not through the observation port 10, and the arrangement of the observation port 10 can facilitate the disassembly and assembly of the box body 2.

In addition, the structure of the hanging buckle 9 is not unique, and the hanging buckle 9 can be one or more of a rod-shaped structure, a tubular structure and a bump-shaped structure; the viewing port 10 may be a notch for viewing provided on the top of the hanging buckle 9, and the viewing port 10 may also be a visible translucent structure provided on the top of the hanging buckle 9.

In some embodiments of the present application, when one or more batteries 1 are mounted on the support frame 3, the batteries 1 are placed on one side of the support frame 3, and the other side is reserved for a space for conveniently connecting necessary cables.

As shown in fig. 1, an embodiment of the present application further provides an engineering machine, which includes the above battery fixing device and a bracket 8 adapted to a hanging buckle 9, and the box body 2 is hung on the bracket 8 of the engineering machine through the hanging buckle 9.

It should be noted that the bracket 8 is provided with a groove for accommodating the hanging buckle 9, the hanging buckle 9 is hung in the groove of the bracket 8, and the blocking plate connected with the hanging buckle 9 can block the hanging buckle 9 from being separated from the bracket 8, so that the stability of the connection between the battery fixing device and the engineering machinery is improved.

In some embodiments of the present disclosure, the weight of the battery holder itself may serve as a portion of the counterweight when the work machine is a forklift.

In some embodiments of the present application, multiple sets of battery fixing devices may be disposed inside the engineering machine, and multiple sets of supporting frames 3 are disposed inside each set of battery fixing device, where components in different sets of battery fixing devices may be interchanged and used, so as to improve convenience in use.

In some embodiments of the application, the external contour line of the battery fixing device is the same as the contour line of the to-be-installed position of the engineering machinery, the overall structure of the main engine of the engineering machinery is met, and the battery fixing device is rich in aesthetic feeling.

The components, devices referred to in this application are meant as illustrative examples only and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the drawings. These components, devices may be connected, arranged, configured in any manner, as will be appreciated by those skilled in the art. Words such as "including," "comprising," "having," and the like are open-ended words that mean "including, but not limited to," and are used interchangeably therewith. The words "or" and "as used herein mean, and are used interchangeably with, the word" and/or, "unless the context clearly dictates otherwise. The word "such as" is used herein to mean, and is used interchangeably with, the phrase "such as but not limited to".

It should also be noted that in the apparatus of the present application, the components may be disassembled and/or reassembled. These decompositions and/or recombinations are to be considered as equivalents of the present application.

The previous description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other aspects without departing from the scope of the application. Thus, the present application is not intended to be limited to the aspects shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The foregoing description has been presented for purposes of illustration and description. Furthermore, the description is not intended to limit embodiments of the application to the form disclosed herein. While a number of example aspects and embodiments have been discussed above, those of skill in the art will recognize certain variations, modifications, alterations, additions and sub-combinations thereof.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modifications, equivalents and the like that are within the spirit and principle of the present application should be included in the scope of the present application.

Claims

1. A battery holding device for holding a battery, comprising:

a box body provided with an opening;

the support frame is arranged in the box body and used for placing the battery;

the rollers are arranged on two sides of the support frame;

the guide rail is arranged on the box body;

2. The battery fixing device according to claim 1, wherein the box body is movably connected with a door body, the door body can close and open the box body through movement, and when the box body is opened, the hovering door body can form a shielding shed.

3. The battery holding apparatus according to claim 1,

the support frame includes: the locking piece can enable the supporting frame to be detachably connected with the box body; the first limiting piece is fixedly connected with the supporting frame;

4. The battery fixing device as claimed in claim 1, wherein one roller is disposed on each of two sides of the supporting frame, and the roller is disposed in a middle portion of the supporting frame.

5. The battery holding apparatus of claim 1, further comprising: the connecting piece, the connecting piece sets up on the box, the box is equipped with open-ended one end and is the open end, the connecting piece is followed the open end extends to and keeps away from the one end of open end.

6. The battery holding apparatus of claim 5, wherein the guide rail comprises:

7. The battery fixing apparatus according to claim 6, wherein the guide rail has a guide surface contacting the roller, the guide surface being inclined downward from the end of the second stopper to the end of the first stopper.

8. The battery fixing device as claimed in claim 1, wherein connecting shafts are provided at both sides of the support frame, the roller is coupled to the connecting shafts, and a stopper for preventing the roller from being separated is provided at one end of the connecting shafts adjacent to the roller.

9. The battery holding apparatus of claim 1, further comprising:

the hanging buckles are arranged on two sides of the box body;

10. An engineering machine, characterized by comprising the battery fixing device as claimed in any one of claims 1 to 9 and a bracket adapted to a hanging buckle, wherein the box body is hung on the bracket of the engineering machine through the hanging buckle.