Drawing type bearing device for unmanned aerial vehicle

Abstract

The utility model relates to a drawing type bearing device for an unmanned aerial vehicle. The drawing type bearing device comprises a first guide rail, a second guide rail, a bearing plate and a limiting check block, wherein the first guide rail and the second guide rail are parallel to each other; the bearing plate is connected with the first guide rail and the second guide rail; the first guide rail is provided with a first linear guide groove, and the second guide rail is provided with a second linear guide groove. The first linear guide groove is provided with a first opening at the front end of the first guide rail and is closed at the rear end of the first guide rail; the second linear guide groove is provided with a second opening at the front end of the second guide rail and is closed at the rear end of the second guide rail; the upper side of the first guide rail is provided with an embedding opening used for communicating with the first linear guide groove, and the embedding opening is adjacent to the first opening. One end of the limiting stop block is connected with the bearing plate, and the other end of the limiting stop block is embedded into the embedding opening and abuts against the end of the bearing plate.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicles, and in particular to a pull-out type carrying device for unmanned aerial vehicles. Background Art

[0002] A drone is an unmanned aircraft controlled by a radio remote control device and a self-contained program control device. It has the advantages of being unmanned, reusable, and reliable. With the continuous development of drone technology and the continuous expansion of its application fields, more and more payloads are installed on drones, and the corresponding payloads also need to change continuously with different working conditions.

[0003] Traditionally, drone equipment is installed by making a metal base to fix the equipment on the drone skin. This fixing method not only increases the weight of the drone, reduces the mechanical properties of the drone skin, but also cannot adjust the position of the equipment well. In addition, the traditional equipment installation method is difficult to ensure the layout of the drone's center of gravity, and has the disadvantage of wasting the middle space of the drone. Furthermore, for drones, this form will greatly reduce the drone's endurance and have a huge negative impact on the scope of application of drones.

[0004] In addition, at this stage, drones are gradually tending towards lightweight structural design, with gradually increasing payloads and longer ranges. Therefore, reducing structural weight and increasing drone endurance are the current trends in drone development. Utility Model Content

[0005] The utility model aims to provide a pull-out type carrying device for a drone.

[0006] To achieve the above-mentioned purpose of the utility model, the utility model provides a pull-out type carrying device for a drone, comprising: a first guide rail and a second guide rail parallel to each other, a carrying plate connected to the first guide rail and the second guide rail, and a limit stopper;

[0007] The first guide rail is provided with a first linear guide groove, and the second guide rail is provided with a second linear guide groove;

[0008] The first linear guide slot has a first opening at a front end of the first guide rail, which is closed at a rear end of the first guide rail;

[0009] The second linear guide groove has a second opening at the front end of the second guide rail, which is closed at the rear end of the second guide rail;

[0010] An embedding opening for communicating with the first linear guide groove is provided on the upper side of the first guide rail, and the embedding opening is adjacent to the first opening;

[0011] One end of the limit stopper is connected to the carrying plate, and the other end is embedded in the embedding opening and abuts against the end of the carrying plate.

[0012] According to one aspect of the utility model, a first weight-reducing notch is provided on the upper side of the first guide rail, and a plurality of first weight-reducing notches are provided at intervals along the length direction of the first guide rail;

[0013] A second weight-reducing notch is arranged on the upper side of the second guide rail, and a plurality of second weight-reducing notches are arranged at intervals along the length direction of the second guide rail.

[0014] According to one aspect of the utility model, a first connecting fixture is provided on the upper side of the first guide rail, and along the length direction of the first guide rail, the first connecting fixture is provided adjacent to the rear end of the first guide rail;

[0015] The first connecting and fixing member is a regular plate, and is arranged to extend in a direction close to the second guide rail; wherein the first connecting and fixing member is provided with a positioning connecting hole;

[0016] A second connecting and fixing member is disposed on the upper side of the second guide rail, and along the length direction of the second guide rail, the second connecting and fixing member is disposed adjacent to the front end of the second guide rail;

[0017] The second connecting and fixing member is a regular plate, and is extended in a direction close to the first guide rail; wherein the second connecting and fixing member is provided with a positioning connecting hole.

[0018] According to one aspect of the utility model, the lower side surface of the first opening is configured as an inclined surface;

[0019] The lower side surface of the second opening is configured as an inclined surface.

[0020] According to one aspect of the utility model, the limit stopper comprises: a connecting portion and an engaging portion;

[0021] The connecting portion and the fitting portion are respectively regular plates;

[0022] The front ends of the embedding portion and the connecting portion are fixedly connected perpendicularly to each other, wherein, in the horizontal direction, the embedding portion is extended in the direction of extending into the embedding opening, and in the vertical direction, the upper end of the embedding portion is flush with the connecting portion, and the lower end thereof protrudes from the connecting portion.

[0023] According to one aspect of the utility model, the side surface of the engaging portion opposite to the supporting plate is an inclined surface, and the inclined surface is inclined in a manner of moving away from the supporting plate from the top to the bottom.

[0024] According to one aspect of the utility model, the load-bearing plate comprises: a plate body and a hoisting guide rail arranged on the plate body;

[0025] The plate body is provided with a hoisting installation hole penetrating the body thereof, wherein the hoisting installation hole is a stepped hole;

[0026] The hoisting guide rail is engaged with the hoisting installation hole, and the hoisting guide rail is glued to the plate body at the connection position.

[0027] According to one aspect of the utility model, the hoisting guide rail comprises: a supporting portion, a vertical connecting portion vertically connected to the supporting portion;

[0028] The supporting part is a long strip-shaped plate;

[0029] The vertical connection portion is a long column;

[0030] The vertical connection portion passes through the hoisting installation hole, and the supporting portion is engaged with the hoisting installation hole to form a supporting connection;

[0031] A third linear guide groove is provided on one side of the vertical connection portion;

[0032] The third linear guide groove has a third opening at the front end of the vertical connection portion, which is closed at the rear end of the vertical connection portion;

[0033] The third linear guide groove is parallel to the plate body and is located below the plate body.

[0034] According to one aspect of the utility model, the carrying plate further comprises: a blocking block;

[0035] The blocking block is arranged corresponding to at least one of the hoisting guide rails, and the blocking block is detachably connected to the front end of the hoisting guide rail.

[0036] According to one aspect of the utility model, the first guide rail and the second guide rail are aluminum alloy guide rails;

[0037] The plate body and the hoisting guide rail are respectively carbon fiber composite structural parts.

[0038] According to a scheme of the utility model, the pull-out type load-bearing device body of the utility model adopts carbon fiber composite materials, aluminum alloy materials, etc. to realize the overall structure, which effectively reduces the overall mass and fully realizes the effect of high reliability and low mass, so that the drone adopting the utility model has a higher effective load-bearing capacity, so that the utility model can withstand a higher load under the condition of the same volume, and at the same time can well meet the requirements of drone weight reduction.

[0039] According to a scheme of the utility model, the pull-out structure of the pull-out type carrying device of the utility model is provided with anti-loosening and limiting structures at the same time, which can effectively ensure the stability of various functional loads and power supply loads under complex flight conditions. In addition, the use of the pull-out structure can also make equipment maintenance more flexible, which has greater advantages for drones that require multiple cycles.

[0040] According to a scheme of the utility model, the load-bearing plate of the utility model adopts a carbon fiber structure, which has a strength several times or even dozens of times that of ordinary steel. At the same time, it has high toughness. It deforms when subjected to force and can return to its original state after the external force is removed. It has a great advantage of being able to maintain a good status quo under high-intensity loads and has good fatigue resistance.

[0041] According to one solution of the utility model, the bearing plate of the utility model adopts a carbon fiber structure, which has the advantages of anti-friction, easy heat conduction, corrosion resistance, and good machinability. It is also easy to compound with other materials (such as resin, metal, and ceramic), and has a high degree of freedom in designing the structure.

[0042] According to a scheme of the utility model, the pull-out type carrying device adopts carbon fiber material, which has more advantages in weight compared with the ordinary metal base method to fix the equipment. This structure adopts a support plate nut to connect and fix the equipment. For equipment that is frequently disassembled, the support plate nut can be replaced, and the thread wear factor can be ignored. The equipment position flexibility is higher. The center of gravity can be changed by adjusting the equipment position according to the overall center of gravity position of the fuselage, so that the center of gravity is located in the optimal position. At the same time, the number of holes in the fuselage skin is reduced, and the mechanical properties of the skin are enhanced.

[0043] According to one solution of the utility model, the first guide rail and the second guide rail of the utility model are made of aluminum alloy, which has the characteristics of light weight and high strength, can withstand high-intensity pressure and tension, and has good corrosion resistance; in addition, it also has the advantages of easy processing and low manufacturing cost.

[0044] According to a solution of the utility model, the threaded sleeve and the carbon fiber plate can be formed into a whole on the bearing plate of the utility model by pre-embedding or post-embedding, which can effectively ensure the fixation of the equipment and meet the fixation requirements of parts in dynamic and static states.

[0045] According to a solution of the utility model, the load-bearing plate and the guide rail of the utility model are connected by sliding, so that there is a certain friction between the load-bearing plate and the guide rail, which is more beneficial to the stability of the UAV flight process.

[0046] According to a scheme of the utility model, the pull-out type carrying device of the utility model can realize the flexible installation of different loads on the upper and lower sides of the carrying plate, which can effectively save the installation space on the UAV. For fuel-powered UAVs, it can effectively increase the fuel tank capacity of the UAV and effectively increase the endurance of the UAV.

[0047] According to a solution of the utility model, the utility model can install the battery by pulling it out under the supporting plate, so that when the battery is exhausted, the battery can be removed without disassembling the entire supporting plate to achieve battery replacement, which effectively increases the flexibility of the use of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 is a three-dimensional diagram schematically showing a pull-out type carrying device according to an embodiment of the utility model;

[0049] Figure 2 is a top view schematically showing a pull-out type carrying device according to an embodiment of the utility model;

[0050] Figure 3 is a structural diagram schematically showing a first guide rail according to an embodiment of the present utility model;

[0051] Figure 4 is a structural diagram schematically showing a second guide rail according to an embodiment of the utility model;

[0052] Figure 5 is a schematic structural diagram of a limit stopper according to an embodiment of the utility model;

[0053] Figure 6 is a structural diagram schematically showing a plate body according to an embodiment of the utility model;

[0054] Figure 7 It is a diagram schematically showing the structure of a lifting guide rail according to an embodiment of the utility model. DETAILED DESCRIPTION

[0055] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the drawings required for the implementation are briefly introduced below. Obviously, the drawings described below are only some implementations of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0056] When describing the embodiments of the present invention, the orientation or positional relationship expressed by the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or positional relationship shown in the relevant drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the above terms cannot be understood as limiting the present invention.

[0057] The present invention will be described in detail below in conjunction with the accompanying drawings and specific implementation methods. The implementation methods cannot be described one by one here, but the implementation methods of the present invention are not therefore limited to the following implementation methods.

[0058] Combination Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, according to an embodiment of the utility model, a pull-out type bearing device for a drone of the utility model comprises: a first guide rail 1 and a second guide rail 2 which are parallel to each other, a bearing plate 3 connected to the first guide rail 1 and the second guide rail 2, and a limit stopper 4; in this embodiment, the first guide rail 1 and the second guide rail 2 are bearing structures, which can be connected to the drone to facilitate the disassembly and assembly of the bearing plate 3; wherein, in order to improve the reliability of the bearing and reduce its overall mass, the first guide rail 1 and the second guide rail 2 can be set as aluminum alloy guide rails. In this embodiment, the first guide rail 1 is provided with a first linear guide groove 1a, and the second guide rail 2 is provided with a second linear guide groove 2a; wherein, in the horizontal direction, the first guide rail 1 and the second guide rail 2 are arranged opposite to each other, and then, the first linear guide groove 1a is on the side opposite to the first guide rail 1 and the second guide rail 2, and the second linear guide groove 2a is on the side opposite to the second guide rail 2 and the first guide rail 1.

[0059] Furthermore, in order to facilitate the disassembly and stable installation of the supporting plate 3, in the length direction of the first guide rail 1, the first linear guide groove 1a has a first opening 1a1 at the front end of the first guide rail 1, which is closed at the rear end of the first guide rail 1; in the length direction of the second guide rail 2, the second linear guide groove 2a has a second opening 2a1 at the front end of the second guide rail 2, which is closed at the rear end of the second guide rail 2; thus, based on the first opening 1a1 and the second opening 2a1, the insertion of the supporting plate 3 can be conveniently realized, and the rear ends of the first linear guide groove 1a and the second linear guide groove 2a are closed so as to achieve the abutment with the supporting plate 3, and then based on the set limit block 4, the abutment of the supporting plate 3 can be limited after the supporting plate 3 is installed in place, so as to ensure that the supporting plate 3 is reliably restricted on the first guide rail 1 and the second guide rail 2.

[0060] In this embodiment, in order to facilitate the installation of the limit stopper 4, an embedding opening 1b for connecting the first linear guide slot 1a is provided on the upper side of the first guide rail 1, and the embedding opening 1b is adjacent to the first opening 1a1; further, one end of the limit stopper 4 is connected to the carrier plate 3, and the other end is embedded in the embedding opening 1b and abuts against the end of the carrier plate 3. In this embodiment, the limit stopper 4 uses a threaded connector to achieve installation with the carrier plate 3, and the upper end of the portion of the limit stopper 4 embedded in the embedding opening 1b matches the embedding opening 1b, and the lower end thereof abuts against the carrier plate 3, thereby achieving reliable limiting of the carrier plate 3.

[0061] Combination Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, according to an embodiment of the utility model, a first weight-reducing notch 1c is provided on the upper side of the first guide rail 1, and a plurality of first weight-reducing notches 1c are provided at intervals along the length direction of the first guide rail 1; in this embodiment, in the vertical direction, the first weight-reducing notch 1c is connected to the first linear guide slot 1a, so that part of the structure on the upper side of the first guide rail 1 is effectively removed, thereby effectively reducing the mass of the entire first guide rail 1 while ensuring the structural strength of the first guide rail 1. Furthermore, along the direction from the front end to the rear end of the first linear guide slot 1a, a guiding inclined surface can be provided on the side surface of the rear side of the first weight-reducing notch 1c to avoid obstruction when the carrier plate 3 is inserted, so as to ensure smooth insertion of the carrier plate 3.

[0062] Correspondingly, a second weight-reducing notch 2b is provided on the upper side of the second guide rail 2, and a plurality of second weight-reducing notches 2b are provided at intervals along the length direction of the second guide rail 2; in this embodiment,

[0063] In the vertical direction, the second weight-reducing notch 2b is connected to the second linear guide groove 2a, so that part of the structure on the upper side of the second guide rail 2 is effectively removed, thereby effectively reducing the mass of the entire second guide rail 2 while ensuring the structural strength of the second guide rail 2. Further, along the direction from the front end to the rear end of the second linear guide groove 2a, a guiding inclined surface can be provided on the side surface of the rear side of the second weight-reducing notch 2b to avoid obstruction when the carrier plate 3 is inserted, so as to ensure smooth insertion of the carrier plate 3.

[0064] Combination Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, according to an embodiment of the utility model, a first connecting fixture 1d is provided on the upper side of the first guide rail 1, and along the length direction of the first guide rail 1, the first connecting fixture 1d is provided adjacent to the rear end of the first guide rail 1; in this embodiment, the first connecting fixture 1d is a regular plate, and it is provided in a direction close to the second guide rail 2; wherein the first connecting fixture 1d is provided with a positioning connecting hole. In this embodiment, the first connecting fixture 1d is provided integrally with the upper side of the first guide rail 1.

[0065] Further, a second connecting fixture 2c is provided on the upper side of the second guide rail 2, and along the length direction of the second guide rail 2, the second connecting fixture 2c is provided adjacent to the front end of the second guide rail 2; in this embodiment, the second connecting fixture 2c is a regular plate, and is provided in a direction close to the first guide rail 1; wherein the second connecting fixture 2c is provided with a positioning connection hole. In this embodiment, the second connecting fixture 2c is provided integrally with the upper side of the second guide rail 2.

[0066] Combination Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, according to an embodiment of the present invention, the lower side of the first opening 1a1 is set as an inclined surface; wherein, by setting the lower side of the first opening 1a1 as an inclined surface, the first linear guide groove 1a of the front end portion is gradually reduced, so that the carrier plate 3 is smoothly introduced into the first linear guide groove 1a, so as to ensure smooth installation of the carrier plate 3. Correspondingly, the lower side of the second opening 2a1 is set as an inclined surface; wherein, by setting the lower side of the second opening 2a1 as an inclined surface, the second linear guide groove 2a of the front end portion is gradually reduced, so that the carrier plate 3 is smoothly introduced into the second linear guide groove 2a, so as to ensure smooth installation of the carrier plate 3.

[0067] Combination Figure 2 and Figure 5 As shown, according to an embodiment of the utility model, the limit stopper 4 includes: a connecting portion 41 and a fitting portion 42; wherein the connecting portion 41 is a regular plate body, and the fitting portion 42 is a regular plate body; in the present embodiment, the fitting portion 42 is fixedly connected to the front end of the connecting portion 41 perpendicularly to each other; wherein, in the horizontal direction, the fitting portion 42 is extended in the direction of extending into the embedding opening 1b, and in the vertical direction, the upper end of the fitting portion 42 is flush with the connecting portion 41, and the lower end thereof protrudes from the connecting portion 41.

[0068] Through the above arrangement, the position-limiting block 4 arranged above can conveniently and reliably limit the carrying plate 3, so as to effectively ensure the use stability of the utility model.

[0069] Combination Figure 2 and Figure 5 As shown, according to an embodiment of the present invention, the side surface of the engaging portion 42 opposite to the carrier plate 3 is an inclined surface, and the inclined surface is arranged in an inclined manner away from the carrier plate 3 from the upper direction to the lower direction. In this embodiment, the angle between the inclined surface of the engaging portion 42 on the side opposite to the carrier plate 3 and the vertical direction is 15°. Accordingly, in order to achieve stable and reliable contact with the inclined surface of the engaging portion 42, the end side surface of the carrier plate 3 can be set as an inclined surface accordingly.

[0070] Through the above-mentioned arrangement, the side of the lower end of the engaging portion 42 opposite to the supporting plate 3 is arranged as an inclined surface, which can effectively reduce the size of the lower end of the engaging portion 42, thereby facilitating the installation of the engaging portion 42, and, as the inclined surface changes, the engaging portion 42 can be reliably abutted against the end of the supporting plate 3 after being installed in place.

[0071] Combination Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, according to an embodiment of the utility model, the load-bearing plate 3 includes: a plate body 31 and a lifting guide rail 32 disposed on the plate body 31; in this embodiment, the plate body 31 is provided with a lifting installation hole penetrating the body thereof, wherein the lifting installation hole is a stepped hole; specifically, the lifting installation hole is an elongated stepped hole as a whole, and its length can be set to be consistent with the length of the lifting guide rail 32. In this embodiment, the lifting guide rail 32 is engaged and connected with the lifting installation hole, and the lifting guide rail 32 is glued and connected with the plate body 31 at the connection position.

[0072] Through the above arrangement, the bearing plate 3 is connected by combining multiple components, which can facilitate the processing of each part and the combined installation of the components after processing.

[0073] Combination Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, according to an embodiment of the utility model, the hoisting guide rail 32 includes: a supporting portion 321, and a vertical connecting portion 322 vertically connected to the supporting portion 321; wherein the supporting portion 321 is a long strip plate, and the vertical connecting portion (322) is a long strip column (such as a rectangular column). In this embodiment, the vertical connecting portion 322 and the middle part of the supporting portion 321 are fixedly connected to each other to form a T-shaped structure; further, a third linear guide groove 322a is provided on one side of the vertical connecting portion 322; accordingly, the third linear guide groove 322a has a third opening 322a1 at the front end of the vertical connecting portion 322, which is closed at the rear end of the vertical connecting portion (322). In this embodiment, the third linear guide groove 322a is located below the plate body 31 in parallel with the plate body 31.

[0074] In this embodiment, the lower side surface of the third opening 322a1 is configured as an inclined surface, through which the front end of the third linear guide groove 322a can present a gradually changing trend, thereby facilitating the pulling and installation of the hanging component.

[0075] In this embodiment, the vertical connection portion 322 passes through the lifting installation hole, and the supporting portion 321 is connected to the lifting installation hole in an embedded supporting manner, wherein on the plate body 31, two lifting guide rails 32 are arranged parallel to each other and spaced apart, and the third linear guide grooves 322a on the two lifting guide rails 32 are arranged opposite to each other.

[0076] Through the above-mentioned arrangement, the utility model can facilitate the installation of the load-bearing plate 3 by setting the first guide rail 1 and the second guide rail 2, and can further expand the load-bearing capacity of the load-bearing plate 3 by arranging the lifting guide rail 32 on the load-bearing plate 3, thereby realizing flexible expansion of the load-bearing on the upper and lower sides, and effectively improving the flexibility of use of the utility model.

[0077] Through the above-mentioned arrangement, the utility model can realize reliable reinforcement of the structure of the plate body 31 through the arrangement of the lifting rail 32 and the plate body 31, thereby making the structure of the entire bearing plate 3 more solid, so that it can have a greater bearing capacity at its upper and lower positions; among which, in particular, the vertical connection part 322 installed in the column is adopted to realize the role of the reinforcing beam, and the reliability of the entire structure is higher in combination with the adhesive bonding method.

[0078] Combination Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, according to an embodiment of the utility model, the supporting plate 3 also includes: a blocking block 33; wherein, the blocking block 33 is arranged corresponding to at least one lifting guide rail 32, and the blocking block 33 is detachably connected to the front end of the lifting guide rail 32; in the present embodiment, in order to facilitate the installation of the blocking block 33 on the lifting guide rail 32, an installation opening can be provided on the supporting portion 321, and the blocking block 33 can be inserted into the third linear guide groove 322a to achieve the closure of the front end of the third linear guide groove 322a, thereby being able to achieve restriction on the installed structure.

[0079] In this embodiment, in order to achieve reliability in the installation of the blocking block 33 and the supporting portion 321 , a threaded connector may be used to achieve a corresponding fixing effect.

[0080] Combination Figure 1 , Figure 2 , Figure 6 and Figure 7As shown, according to an embodiment of the present invention, the plate body 31 and the hoisting guide rail 32 are respectively carbon fiber composite structural members. In this embodiment, in order to facilitate the installation and fixation of the upper side of the plate body 31 with other structures, a threaded connector can be used for fixing. Of course, in order to effectively increase the reliability of the fixed position, a metal threaded sleeve can be embedded in the plate body 31 to increase the reliability and service life of the connection position.

[0081] Combination Figure 1 and Figure 2 As shown, according to one embodiment of the utility model, in order to facilitate the connection between the pull-out type carrying device of the utility model and the drone, threaded connection holes can be set on the sides of the first guide rail 1 and the second guide rail 2, and the first guide rail 1 and the second guide rail 2 can be fixed to the structure on the drone by threaded connectors to achieve corresponding fixation. Of course, if the drone lacks a corresponding mounting structure, a hoisting mounting plate 5 can be further provided, and the first guide rail 1 and the second guide rail 2 can be respectively installed with the hoisting mounting plate 5 by threaded connectors, and the hoisting mounting plate 5 can be connected to the drone.

[0082] The above contents are merely examples of specific solutions of the present invention. For the equipment and structures not described in detail, it should be understood that they are implemented by adopting the general equipment and general methods available in the art.

[0083] The above is only one solution of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model can be modified and varied in various ways. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A pull-out carrying device for a drone, characterized in that: include: A first guide rail (1) and a second guide rail (2) which are parallel to each other, a bearing plate (3) connected to the first guide rail (1) and the second guide rail (2), and a limit stopper (4); The first guide rail (1) is provided with a first linear guide groove (1a), and the second guide rail (2) is provided with a second linear guide groove (2a); The first linear guide groove (1a) has a first opening (1a1) at the front end of the first guide rail (1) and is closed at the rear end of the first guide rail (1); The second linear guide groove (2a) has a second opening (2a1) at the front end of the second guide rail (2), which is closed at the rear end of the second guide rail (2); An embedding opening (1b) for communicating with the first linear guide groove (1a) is provided on the upper side of the first guide rail (1), and the embedding opening (1b) is adjacent to the first opening (1a1); One end of the limit stopper (4) is connected to the carrying plate (3), and the other end is embedded in the embedding opening (1b) and abuts against the end of the carrying plate (3).

2. The pull-out carrying device according to claim 1, characterized in that: A first weight-reducing notch (1c) is provided on the upper side of the first guide rail (1), and a plurality of first weight-reducing notches (1c) are provided at intervals along the length direction of the first guide rail (1); A second weight-reducing notch (2b) is provided on the upper side of the second guide rail (2), and a plurality of second weight-reducing notches (2b) are provided at intervals along the length direction of the second guide rail (2).

3. The pull-out carrying device according to claim 2, characterized in that: A first connecting and fixing member (1d) is arranged on the upper side of the first guide rail (1), and along the length direction of the first guide rail (1), the first connecting and fixing member (1d) is arranged adjacent to the rear end of the first guide rail (1); The first connecting and fixing member (1d) is a regular plate, and is arranged to extend in a direction close to the second guide rail (2); wherein the first connecting and fixing member (1d) is provided with a positioning connecting hole; A second connecting and fixing member (2c) is arranged on the upper side of the second guide rail (2), and along the length direction of the second guide rail (2), the second connecting and fixing member (2c) is arranged adjacent to the front end of the second guide rail (2); The second connecting and fixing member (2c) is a regular plate, and is arranged to extend in a direction close to the first guide rail (1); wherein the second connecting and fixing member (2c) is provided with a positioning connecting hole.

4. The pull-out carrying device according to claim 3, characterized in that: The lower side surface of the first opening (1a1) is configured as an inclined surface; The lower side surface of the second opening (2a1) is configured as an inclined surface.

5. The pull-out carrying device according to claim 4, characterized in that: The limit stopper (4) comprises: a connecting portion (41) and an engaging portion (42); The connecting portion (41) and the engaging portion (42) are respectively regular plates; The front ends of the embedding portion (42) and the connecting portion (41) are fixedly connected to each other perpendicularly, wherein, in the horizontal direction, the embedding portion (42) is extended in the direction of extending into the embedding opening (1b), and in the vertical direction, the upper end of the embedding portion (42) is flush with the connecting portion (41), and the lower end thereof protrudes from the connecting portion (41).

6. The pull-out carrying device according to claim 5, characterized in that: The side surface of the engaging portion (42) opposite to the supporting plate (3) is an inclined surface, and the inclined surface is inclined in a manner away from the supporting plate (3) from the top to the bottom.

7. The pull-out carrying device according to claim 6, characterized in that: The bearing plate (3) comprises: a plate body (31) and a hoisting guide rail (32) arranged on the plate body (31); The plate body (31) is provided with a hoisting installation hole penetrating the plate body, wherein the hoisting installation hole is a stepped hole; The hoisting guide rail (32) is engaged and connected with the hoisting installation hole, and the hoisting guide rail (32) is glued and connected with the plate body (31) at the connection position.

8. The pull-out carrying device according to claim 7, characterized in that: The hoisting guide rail (32) comprises: a supporting portion (321), and a vertical connecting portion (322) vertically connected to the supporting portion (321); The supporting portion (321) is a long strip-shaped plate; The vertical connection portion (322) is a long column; The vertical connection portion (322) passes through the hoisting installation hole, and the supporting portion (321) is in a supporting connection with the hoisting installation hole in an embedded manner; A third linear guide groove (322a) is provided on one side of the vertical connection portion (322); The third linear guide groove (322a) has a third opening (322a1) at the front end of the vertical connection portion (322), and is closed at the rear end of the vertical connection portion (322); The third linear guide groove (322a) is located below the plate body (31) and is parallel to the plate body (31).

9. The pull-out carrying device according to claim 8, characterized in that: The carrying plate (3) further comprises: a blocking block (33); The blocking block (33) is arranged corresponding to at least one of the hoisting guide rails (32), and the blocking block (33) is detachably connected to the front end of the hoisting guide rail (32).

10. The pull-out carrying device according to claim 9, characterized in that: The first guide rail (1) and the second guide rail (2) are respectively aluminum alloy guide rails; The plate body (31) and the hoisting guide rail (32) are respectively carbon fiber composite structural parts.

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