Multifunctional transport trolley capable of distinguishing strength placement of bolts and nuts

Abstract

The utility model discloses a multifunctional transport trolley for distinguishing strength placement of bolts and nuts, which comprises a movable trolley body, and the movable trolley body comprises a bottom plate positioned on the lower layer, a top plate positioned on the upper layer, and a front side plate and a rear side plate which are mounted between the top plate and the bottom plate; the front side plate and the rear side plate are arranged in the length direction of the movable trolley body, and a containing cavity is defined by the bottom plate, the top plate, the front side plate and the rear side plate. A plurality of first bolt inserting holes used for inserting bolts are formed in the top plate in a penetrating mode, and a plurality of nut storage columns used for sleeving nuts are arranged on the upper surface of the top plate. Bolts and nuts can be placed in a distinguished mode, the requirement for vehicle system distribution is met, the production progress can be visually reflected, the maintenance efficiency is improved, and one vehicle has multiple purposes.

Description

Technical Field

[0001] This utility model relates to the field of transport trolley technology, and in particular to a multi-functional transport trolley that distinguishes the placement of bolts and nuts based on their strength. Background Technology

[0002] Trains have long been a primary mode of public transportation. With the ever-increasing travel demands, the number of trains in operation has grown rapidly, leading to a continuous increase in the quantity and frequency of train maintenance. To ensure the safety and comfort of passengers and meet their growing travel needs, higher demands have been placed on improving the efficiency and accuracy of axle end bolt installation. Currently used tool trolleys typically place bolts and nuts directly on the top plate of the train body, which is no longer sufficient for the needs of batch delivery. This often results in the mixing of different grades of nuts and bolts, and the efficiency of inspection and installation is relatively low. Furthermore, it requires a high level of visual acuity from maintenance personnel, increasing the risk of quality problems at the source. In summary, existing tool trolleys used for train axle box maintenance have the following problems:

[0003] (1) There is a risk of mixing nuts and bolts of different grades together during the assembly of the axle box;

[0004] (2) The strength of bolts and nuts needs to be checked repeatedly during maintenance, and bolts and nuts of different grades are easily mixed up, resulting in low maintenance efficiency.

[0005] (3) The frequent squatting and standing of maintenance personnel to pick up maintenance tools and parts increases the labor intensity;

[0006] (4) It cannot meet the requirements of vehicle-based delivery and cannot intuitively reflect the maintenance progress;

[0007] (5) The maintenance records, tools, etc. are placed in a mess, which affects the appearance;

[0008] (6) Too many tool carts can easily become disorganized when not in use.

[0009] Therefore, there is an urgent need to design a new type of multi-functional transport vehicle to meet usage requirements. Utility Model Content

[0010] The purpose of this utility model is to provide a multi-functional transport trolley that can distinguish between bolts and nuts based on their strength. It can distinguish between bolts and nuts, meet the requirements of vehicle-based delivery, intuitively reflect the production progress, improve maintenance efficiency, and achieve multiple uses for one vehicle, thus effectively solving the problems mentioned in the background art.

[0011] To achieve the above objectives, the present invention adopts the following technical solution:

[0012] A multi-functional transport trolley for distinguishing the placement of bolts and nuts by strength includes a mobile trolley body. The mobile trolley body includes a bottom plate at the bottom, a top plate at the top, and a front side plate and a rear side plate installed between the top plate and the bottom plate. The front side plate and the rear side plate are arranged along the length direction of the mobile trolley body. The bottom plate, the top plate, the front side plate, and the rear side plate form a placement cavity. The top plate has a plurality of first bolt insertion holes for inserting bolts through it, and the upper surface of the top plate is provided with a plurality of nut storage columns for fitting nuts.

[0013] Furthermore, the mobile trolley body has a side door assembly on at least one side along its width direction. The side door assembly includes a side panel and a side door handle fixed to the surface of the side panel. The side panel has a plurality of second bolt holes for inserting bolts. Furthermore, the first bolt holes and the second bolt holes are arranged in a matrix, and the nut storage posts are arranged at linear intervals.

[0014] Furthermore, a side door locking device is connected between the side door assembly and the mobile trolley body.

[0015] Furthermore, the side door locking device includes an L-shaped locking rod and an L-shaped locking plate that are fitted together. One end of the L-shaped locking plate is fixedly connected to the surface of the side plate and a locking groove is formed between the L-shaped locking plate and the side plate. One end of the L-shaped locking rod is rotatably connected to the mobile trolley body, and the other end of the L-shaped locking rod is engaged with the locking groove.

[0016] Furthermore, the upper edge of the side panel is rotatably connected to the top panel, and at least one telescopically adjustable damping support rod is connected between the side door assembly and the mobile trolley body. One end of the damping support rod is rotatably connected to the side door assembly, and the other end of the damping support rod is rotatably connected to the mobile trolley body.

[0017] Furthermore, both the front and rear side plates are perforated plates with through holes.

[0018] Furthermore, a file box assembly is installed on the front side panel and / or the rear side panel. The file box assembly includes a file box with an upward opening and a hook connected to the file box. The hook is connected to a through hole on the perforated plate for hanging.

[0019] Furthermore, the bottom of the base plate is provided with several omnidirectional wheels, and a push-pull handle is provided at one end of the mobile trolley body along its length.

[0020] Furthermore, the height of the mobile trolley body is 50cm to 80cm.

[0021] Compared with the prior art, this utility model provides a multi-functional transport trolley for distinguishing the placement of bolts and nuts based on their strength, which has the following beneficial effects:

[0022] (1) Reduce the risk of mixed and incorrect assembly during axle box assembly;

[0023] (2) Reduce the number of times the bolt grade is repeatedly checked to improve the efficiency of axle box maintenance;

[0024] (3) Meets ergonomic requirements, reduces the frequency of maintenance personnel standing up, and reduces labor intensity;

[0025] (4) It meets the requirements of vehicle-based delivery and can intuitively reflect the production progress;

[0026] (5) Facilitates the orderly placement of maintenance records and tools;

[0027] (6) Achieve multi-purpose use of one vehicle, reduce the number of vehicles, save storage space and production costs. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a three-dimensional structural diagram of the present invention from a first-view perspective.

[0030] Figure 2 This is a three-dimensional structural diagram of the present invention from a second perspective.

[0031] Figure 3 This is a three-dimensional structural diagram of the side door assembly that opens in a third-person perspective according to this utility model;

[0032] Figure 4 This is a three-dimensional structural diagram of the side door assembly that opens in a fourth-person view according to the present invention;

[0033] Figure 5 This is a rear view of the present invention when the side door assembly is open;

[0034] Figure 6 This is a rear view of a multi-functional transport trolley with its side door assembly open, representing another structural design.

[0035] Reference numerals: 1. Mobile trolley body; 11. Base plate; 12. Top plate; 121. First bolt hole; 122. Nut storage column; 13. Front side plate; 14. Rear side plate; 15. Placement cavity; 16. Casters; 17. Push-pull handle; 2. Side door assembly; 21. Side plate; 211. Second bolt hole; 22. Side door handle; 3. Side door locking device; 31. L-shaped locking rod; 32. L-shaped locking plate; 4. Damping support rod; 5. Document box assembly; 51. Document box; 52. Hook. Detailed Implementation

[0036] The technical solution of this utility model will be clearly and completely described below through detailed embodiments and in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0037] Example 1

[0038] Please refer to Figures 1-5 This embodiment provides a multi-functional transport trolley for distinguishing the placement of bolts and nuts by strength, including a mobile trolley body 1. The mobile trolley body 1 includes a bottom plate 11 at the lower level, a top plate 12 at the upper level, and a front side plate 13 and a rear side plate 14 installed between the top plate 12 and the bottom plate 11. The front side plate 13 and the rear side plate 14 are arranged along the length direction of the mobile trolley body 1. The bottom plate 11, the top plate 12, the front side plate 13 and the rear side plate 14 form a placement cavity 15. The top plate 11 has a plurality of first bolt insertion holes 121 for inserting bolts through it, and the upper surface of the top plate 11 is provided with a plurality of nut storage columns 122 for fitting nuts. In this way, the bottom plate and top plate are combined to form a two-layer transport trolley. During maintenance, the placement cavity 15, supported by the bottom plate 11, is used to store tools and accessories in an orderly manner, while the top plate 12 serves as a classified placement area for bolts and nuts. Bolts of the same grade that need maintenance can be inserted into the first bolt insertion hole 121 for classified temporary placement, and nuts that need maintenance, as well as nuts of the same grade as the bolts, can be placed into the nut storage column 122 for classified temporary placement, reducing the risk of mixed or incorrect assembly during axle box assembly. In addition, since bolts or nuts of the same grade can be classified and placed, the number of times the bolt grade needs to be repeatedly checked is reduced, improving the efficiency of axle box maintenance.

[0039] In this embodiment, reference Figures 1-5The mobile trolley body 1 has a side door assembly 2 on one side along its width. The side door assembly 2 includes a side plate 21 and a side door handle 22 fixed to the surface of the side plate 21. The side plate 21 has multiple second bolt insertion holes 211 for inserting bolts. By providing second bolt insertion holes in the side plate, bolts of the same level that need to be repaired can be inserted into the second bolt insertion holes in the side plate for storage. More specifically, the side door assembly 2 is distributed near the nut storage column 122.

[0040] In some specific implementation methods, such as Figures 1-3 As shown, the first bolt insertion hole 121 and the second bolt insertion hole 211 are both arranged in a matrix, and the nut storage column 122 are arranged in a straight line at intervals.

[0041] More specifically, as an example, such as Figure 1 and Figure 3 As shown, the first bolt insertion hole 121 on the top plate 12 is a small circular hole with a diameter of Φ21mm, and there are 4×20 of them; the second bolt insertion hole 211 on the side plate 21 is a small circular hole with a diameter of Φ21mm, and there are 4×20 of them; the nut storage column 122 is a cylindrical rod, and there are 20 of them, each nut storage column 122 can hold 8 nuts. According to the axle box assembly, assembling the front cover of the axle box for one wheel axle requires 8 bolts and 8 nuts. Therefore, this multi-functional transport trolley can assemble 20 wheel axles, corresponding to 5 train sets, which meets the requirements of train set delivery and can intuitively show the production progress.

[0042] As an improved implementation method, refer to Figure 2 , Figure 4 and Figure 5 A side door locking device 3 is connected between the side door assembly 2 and the mobile trolley body 1. The side door locking device can be used to lock when the side panel is closed, preventing the side door from moving during the pushing of the multi-functional transport trolley.

[0043] In some specific implementation methods, refer to Figure 2 , Figure 4 and Figure 5 The side door locking device 3 includes an L-shaped locking rod 31 and an L-shaped locking plate 32 that are fitted together. One end of the L-shaped locking plate 32 is fixedly connected to the surface of the side plate 21 and a locking groove is formed between the L-shaped locking plate 32 and the side plate 21. One end of the L-shaped locking rod 31 is rotatably connected to the mobile trolley body 1, and the other end of the L-shaped locking rod 31 is engaged with the locking groove.

[0044] In this embodiment, reference Figures 1-5The upper edge of the side panel 21 is rotatably connected to the top panel 12. At least one retractable and adjustable damping support rod 4 is also connected between the side door assembly 2 and the mobile trolley body 1. One end of the damping support rod 4 is rotatably connected to the side door assembly 2, and the other end is rotatably connected to the mobile trolley body 1. The installation of the damping support rod ensures that the side panel remains horizontal after opening. Therefore, in confined spaces, the side panel can be folded for maintenance, while in more spacious areas, it can be unfolded for use or used by two people simultaneously, greatly increasing maintenance efficiency. Furthermore, when not in use, the side panel can be folded for storage, saving production space and ensuring standardized placement. Specifically, as an example, such as... Figure 2 and Figure 4 As shown, the upper edge of the side plate 21 is rotatably connected to the top plate 12 via a hinge, and a damping support rod 4 is installed at each end of the side plate 21. The damping support rod 4 can be a gas strut or a hydraulic cylinder.

[0045] In this embodiment, reference Figures 1-5 Both the front side plate 13 and the rear side plate 14 are perforated plates with through holes.

[0046] In this embodiment, reference Figures 1-5 The rear side panel 14 is equipped with a file box assembly 5, which includes a file box 51 with an upward opening and a hook 52 connected to the file box 51. The hook 52 is hung through a hole on the perforated plate. The file box can be used to store maintenance records and documents. It can be hung on a multi-functional transport trolley via the hook. Other tools such as work caps can also be hung on the perforated plate, effectively utilizing space. In addition, if different grades of bolts and nuts are required, they can be placed on the top and side panels respectively. Nuts can also be hung on the perforated plate with ropes to distinguish between different grades of nuts. Of course, in some other embodiments, the file box assembly can also be installed on the front side panel.

[0047] In this embodiment, reference Figures 1-5 The bottom of the base plate 11 is provided with several casters 16, and a push-pull handle 17 is provided at one end of the mobile trolley body 1 along its length. The trolley body 1 is pushed and pulled using the casters, making it easy to move. Specifically, there are four casters 16, two of which have brake pads, and the other two do not.

[0048] In this embodiment, the height of the mobile trolley body 1 is 50cm to 80cm. This satisfies ergonomics, reduces the need for maintenance personnel to stand up frequently, and lowers labor intensity.

[0049] Example 2

[0050] refer to Figure 6 This embodiment is an improvement upon embodiment 1. Furthermore, in this embodiment, the mobile trolley body 1 is provided with side door assemblies 2 on both sides along its width. Simultaneously, the top plate 12 has two rows of nut storage columns 122, with 20 columns in each row. The specific structural configuration of the side door assemblies 2 is the same as in embodiment 1, so the structure of the side door assemblies will not be described again. This configuration in this embodiment can further increase the number of maintenance personnel.

[0051] The above embodiments are merely illustrative of the concept and technical solution of this utility model, and are not intended to limit this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

[0052] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A multi-functional transport trolley for distinguishing between bolt-nut strength placement, comprising a mobile trolley body, characterized in that, The mobile trolley body comprises a bottom plate at a lower layer, a top plate at an upper layer, and a front side plate and a rear side plate installed between the top plate and the bottom plate, the front side plate and the rear side plate are arranged along the length direction of the mobile trolley body, and the bottom plate, the top plate, the front side plate and the rear side plate enclose a placing cavity; the top plate is provided with a plurality of first bolt insertion holes for inserting bolts; and the upper surface of the top plate is provided with a plurality of nut storage columns for sleeving nuts.

2. The multi-functional transport trolley for distinguishing between bolt-nut strength placement according to claim 1, characterized in that, The mobile trolley body is provided with a side door assembly on at least one side in the width direction, the side door assembly comprises a side plate and a side door handle fixed on the surface of the side plate, and the side plate is provided with a plurality of second bolt insertion holes for inserting bolts.

3. The multi-functional transport trolley for distinguishing between bolt-nut strength placement according to claim 2, characterized in that, The first bolt insertion hole and the second bolt insertion hole are both arranged in a matrix, and the nut storage column is arranged in a straight line at intervals.

4. The multi-functional transport trolley for distinguishing between bolt-nut strength placement according to claim 2, characterized in that, A side door locking device is connected between the side door assembly and the mobile trolley body.

5. The multi-functional transport trolley for distinguishing between bolt-nut strength placement according to claim 4, characterized in that, The side door locking device comprises an L-shaped lock rod and an L-shaped lock plate connected in a fitting manner, one end of the L-shaped lock plate is fixedly connected to the surface of the side plate, a lock groove is formed between the L-shaped lock plate and the side plate, one end of the L-shaped lock rod is rotatably connected to the mobile trolley body, and the other end of the L-shaped lock rod is clamped to the lock groove.

6. The multi-functional transport trolley for distinguishing between bolt-nut strength placement as claimed in claim 4 wherein, The upper edge of the side plate is rotatably connected to the top plate, at least one damping support rod with adjustable length is further connected between the side door assembly and the mobile trolley body, one end of the damping support rod is rotatably connected to the side door assembly, and the other end of the damping support rod is rotatably connected to the mobile trolley body.

7. The multi-functional transport trolley for distinguishing between bolt-nut strength placement as claimed in claim 1 wherein, The front side plate and the rear side plate are both punched plates distributed with through holes.

8. The multi-functional transport trolley for distinguishing between bolt-nut strength placement as claimed in claim 7 wherein, The front side plate and / or the rear side plate is provided with a file box assembly, the file box assembly comprises a file box with an upward opening and a hook connected to the file box, and the hook is hung and connected to the through hole on the punched plate.

9. The multi-functional transport trolley for distinguishing between bolt-nut strength placement as claimed in claim 1 wherein, The bottom of the bottom plate is provided with a plurality of universal wheels, and one end of the mobile trolley body in the length direction is provided with a pull handle.

10. The multi-functional transport trolley for distinguishing between bolt-nut strength placement as claimed in claim 1 wherein, The height of the mobile trolley body is 50cm-80cm.

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