Downhole multi-functional carrier
By combining a split dynamic frame structure with a hydraulic lifting mechanism, the underground transport vehicle achieves multi-functional integration, solving the problem of single-function traditional equipment and improving transportation efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENHUA SHENDONG COAL GRP
- Filing Date
- 2025-07-23
- Publication Date
- 2026-06-23
AI Technical Summary
Traditional underground transport vehicles have limited functionality and cannot perform loading, unloading, lifting, and terrain-adaptive functions on the same equipment, resulting in low operational efficiency and high safety risks.
It adopts a split dynamic frame structure, and realizes the mechanical linkage between the main frame and the split frame through the rotating connecting rod. It allows for form transformation and enables the functional switching between two-wheel light-load transportation and four-wheel heavy-load transportation. Combined with the hydraulic lifting mechanism and swivel/directional casters, it realizes loading and unloading, lifting and terrain adaptation.
It achieves multi-functional integration of a single device, improves downhole operation efficiency, enhances the adaptability and safety of the equipment in complex roadway environments, and reduces the time for switching operation modes.
Smart Images
Figure CN224392625U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of mining machinery and equipment technology, and more specifically, to an underground multi-functional transport vehicle. Background Technology
[0002] Currently, the functions of downhole transport vehicles in related technologies are limited, and they can only complete basic material transportation. They cannot achieve loading, unloading, lifting, and terrain adaptation functions on the same equipment, which leads to the need to frequently switch between different tools during the operation, which greatly reduces the efficiency of downhole operations and increases safety risks. Utility Model Content
[0003] This application aims to at least solve the technical problem in the related technology that traditional downhole transport vehicles have limited functions, can only complete basic material transportation, and cannot achieve loading, unloading, lifting and terrain adaptation functions on the same equipment, resulting in a significant reduction in operation efficiency.
[0004] To solve the above-mentioned technical problems, this application is implemented as follows:
[0005] This application provides a multi-functional underground transport vehicle, comprising: a main frame; directional casters disposed at the front end of the main frame; a rotating connecting rod, one end of which is rotatably connected to the main frame; a split frame, the other end of which is connected to the rotating connecting rod; and swivel casters disposed at the connection end between the split frame and the rotating connecting rod. In a first configuration, the split frame rotates and retracts around the rotating connecting rod, with the split frame and the main frame overlapping in parallel. The swivel casters are raised and suspended, and stored inside the directional casters, which independently support the main frame. In a second configuration, the split frame rotates and unfolds around the rotating connecting rod, with the split frame and the main frame forming a preset angle. The swivel casters descend and, together with the directional casters, support the main frame.
[0006] The underground multi-functional transport vehicle provided in this application includes a main frame, directional casters, a rotating connecting rod, a split frame, and swivel casters. The directional casters are located at the front end of the main frame. One end of the rotating connecting rod is movably connected to the middle of the main frame, allowing it to rotate around the main frame. The split frame is connected to the other end of the rotating connecting rod, enabling the split frame to rotate around the main frame within a certain angle, thus allowing for conversion between different configurations of the split frame and the main frame. The swivel casters are located at the connection point between the split frame and the rotating connecting rod, allowing the split frame to drive the swivel casters to rotate around the main frame via the rotating connecting rod, further enabling conversion between different configurations of the split frame and the main frame. In its first configuration, the split frame retracts by rotating the swivel casters around the rotating connecting rod, resulting in a parallel overlap between the split frame and the main frame. The swivel casters are raised and suspended, then stored inside the directional casters, which independently support the main frame. In this configuration, workers can transport materials by manipulating the handles on the main frame and using the directional casters to contact the ground. Essentially, in this first configuration, the underground multi-functional transport vehicle functions as a regular transport vehicle. In its second configuration, the split frame unfolds by rotating the swivel casters around the rotating connecting rod until a preset angle is formed between the split frame and the main frame. As the split frame rotates, the swivel casters move from the front to the rear of the main frame, then descend and contact the ground, ultimately supporting the main frame together with the directional casters. In this configuration, one end of the split frame can act as a handle for workers to grip and operate. Understandably, with the split frame in its second configuration, the entire main frame can be loaded with materials, greatly improving the loading and transportation capacity of the underground multi-functional transport vehicle.
[0007] This application provides a multi-functional underground transport vehicle that achieves functional integration and conversion through a rotating and deformable structure between a main frame and a split frame. In the first configuration, i.e., a light-load transport state with two wheels on the ground, the split frame retracts around the rotating connecting rod until it is parallel to and overlaps with the main frame. The swivel casters automatically rise and suspend themselves, then are stored inside the directional casters, forming a directional caster support structure, enabling flexible and efficient transport in narrow tunnels. In the second configuration, i.e., a heavy-load transport state with four wheels on the ground, the split frame rotates and unfolds until it is perpendicular to the main frame. The swivel casters simultaneously fall to the ground, forming a stable four-corner support platform with the directional casters, enabling heavy-load transport of multiple materials.
[0008] By transforming the split frame from parallel folding to vertical unfolding, a single unit can simultaneously switch between roadway mobile transportation and heavy loading and unloading functions, solving the efficiency bottlenecks and safety risks caused by the single function of traditional equipment. It also has the advantages of short operation mode switching time and high functional integration.
[0009] Additional aspects and advantages of this application will become apparent in the following description or may be learned by practice of this application. Attached Figure Description
[0010] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0011] Figure 1 This is one of the structural schematic diagrams of the underground multi-functional transport vehicle in its first configuration according to an embodiment of this application;
[0012] Figure 2 This is a second schematic diagram of the structure of the underground multi-functional transport vehicle in its first configuration according to an embodiment of this application;
[0013] Figure 3 This is the third schematic diagram of the structure of the underground multi-functional transport vehicle in its first configuration according to an embodiment of this application;
[0014] Figure 4 This is the fourth structural schematic diagram of a multi-functional underground transport vehicle in its first configuration according to an embodiment of this application;
[0015] Figure 5 This is one of the structural schematic diagrams of the underground multi-functional transport vehicle in its second configuration according to an embodiment of this application;
[0016] Figure 6 This is a second structural schematic diagram of the underground multi-functional transport vehicle in its second configuration according to an embodiment of this application.
[0017] in, Figures 1 to 6 The correspondence between the reference numerals and component names in the attached drawings is as follows:
[0018] 100 Multi-functional underground transport vehicle, 110 Main frame, 120 Directional casters, 130 Rotary connecting rod, 140 Split frame, 150 Universal casters, 160 Storage board, 162 Hydraulic lifting mechanism, 164 Anti-slip layer, 170 Pallet, 180 Frame clamp, 190 Rubber handle, 192 Drive assembly, 194 Locking assembly. Detailed Implementation
[0019] To better understand the above-mentioned objectives, features, and advantages of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0020] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.
[0021] The following reference Figures 1 to 6 This application describes a multi-functional underground transport vehicle 100 provided according to some embodiments.
[0022] like Figures 1 to 6 As shown, Figure 1 This is one of the structural schematic diagrams of the underground multi-functional transport vehicle 100 in its first configuration according to an embodiment of this application; Figure 2 This is a second schematic diagram of the structure of the underground multi-functional transport vehicle 100 in its first configuration according to an embodiment of this application; Figure 3 This is the third structural schematic diagram of the underground multi-functional transport vehicle 100 in its first configuration according to an embodiment of this application; Figure 4 This is the fourth structural schematic diagram of the underground multi-functional transport vehicle 100 in its first configuration according to an embodiment of this application; Figure 5 This is one of the structural schematic diagrams of the underground multi-functional transport vehicle 100 in its second configuration according to an embodiment of this application; Figure 6 This is a second structural schematic diagram of the underground multi-functional transport vehicle 100 in its second configuration according to an embodiment of this application.
[0023] An embodiment of this application provides an underground multi-functional transport vehicle 100, comprising: a main frame 110; directional casters 120 disposed at the front end of the main frame 110; a rotating connecting rod 130, one end of which is rotatably connected to the main frame 110; a split frame 140 connected to the other end of the rotating connecting rod 130; and swivel casters 150 disposed at the connection end between the split frame 140 and the rotating connecting rod 130; wherein, when the split frame 140 is in a first configuration, the split frame... The frame 140 rotates and retracts around the rotating connecting rod 130, with the split frame 140 and the main frame 110 stacked parallel to each other. The swivel caster 150 is raised and suspended in the air and stored inside the directional caster 120, which alone supports the main frame 110. When the split frame 140 is in the second state, it rotates and unfolds around the rotating connecting rod 130, with the split frame 140 and the main frame 110 forming a preset angle. The swivel caster 150 falls down and together with the directional caster 120 supports the main frame 110.
[0024] like Figure 1 , Figure 4 , Figure 5 and Figure 6As shown, the underground multi-functional transport vehicle 100 provided in this application includes a main frame 110, directional casters 120, a rotating connecting rod 130, a split frame 140, and swivel casters 150. The directional casters 120 are located at the front end of the main frame 110. One end of the rotating connecting rod 130 is movably connected to the middle of the main frame 110, allowing it to rotate around the main frame 110. The split frame 140 is connected to the other end of the rotating connecting rod 130, meaning the split frame 140 can rotate around the main frame 110 within a certain angle, enabling the conversion between different configurations of the split frame 140 and the main frame 110. The swivel caster 150 is located at the connection end between the split frame 140 and the rotating connecting rod 130. That is, the split frame 140 can drive the swivel caster 150 to rotate around the main frame 110 through the rotating connecting rod 130, so as to realize the conversion between different forms of the split frame 140 and the main frame 110.
[0025] Specifically, such as Figure 4 As shown, when the split frame 140 is in the first state, the split frame 140 drives the swivel casters 150 to rotate and retract around the rotating connecting rod 130. The split frame 140 and the main frame 110 are parallel and stacked together. The swivel casters 150 are raised and suspended in the air and stored inside the directional casters 120. The directional casters 120 support the main frame 110 alone. At this time, the operator can transport materials by operating the handle of the main frame 110 and by having the directional casters 120 contact the ground. It can be understood that when the split frame 140 is in the first state, the underground multi-functional transport vehicle 100 is used as an ordinary transport vehicle.
[0026] Specifically, such as Figure 5 and Figure 6 As shown, in the second configuration, the split frame 140 drives the swivel casters 150 to rotate and unfold around the rotating connecting rod 130 until the split frame 140 and the main frame 110 form a preset angle. At this point, as the split frame 140 rotates, the swivel casters 150 move from the front end to the rear end of the main frame 110, fall, and contact the ground, ultimately supporting the main frame 110 together with the directional casters 120. At this time, one end of the split frame 140 can act as a handle for the transport vehicle, allowing operators to grip and control it. It is understandable that in the second configuration, the entire main frame 110 can be loaded with materials, greatly improving the loading and transport capacity of the underground multi-functional transport vehicle 100.
[0027] Specifically, currently, material transportation and equipment handling in coal mine roadways mainly rely on traditional handcarts or small rail transport vehicles. However, existing technologies have the following problems: First, low efficiency: manual handling is labor-intensive and limited by narrow roadway space, resulting in slow transportation speed; Second, limited functionality: traditional transport vehicles can only complete unidirectional transportation and cannot perform complex operations such as loading, unloading, and lifting; Third, insufficient safety: manual operation is prone to collisions and lacks emergency braking and obstacle avoidance functions; Fourth, poor adaptability: existing equipment is difficult to adapt to materials of different sizes or complex terrain. These problems seriously restrict the efficiency and safety of underground operations, and there is an urgent need for a multifunctional and intelligent handling device.
[0028] To address the shortcomings of existing technologies, the purpose of this application is to provide an underground multi-functional transport vehicle 100, which solves the problems of low efficiency, limited functionality, and insufficient safety in existing technologies, and achieves the following objectives: improving material transport efficiency, integrating loading and unloading, lifting, obstacle avoidance and other functions into one unit, and enhancing the adaptability and safety of the equipment in complex tunnel environments.
[0029] Specifically, to overcome the functional limitations of traditional equipment, this application adopts a split dynamic frame structure. A rotating connecting rod 130 forms the mechanical linkage between the main frame 110 and the split frame 140, allowing the split frame 140 to switch between a first and a second configuration. When the split frame 140 retracts around the rotating connecting rod 130 and overlaps parallel to the main frame 110, the omnidirectional casters 150 automatically rise and become suspended, embedding themselves inside the directional casters 120, forming a lightweight two-wheel structure. The directional casters 120 provide driving force by contacting the ground independently. Combined with the zero-radius steering characteristic achieved by the omnidirectional casters being off the ground, this solves the mobility problem in narrow tunnels. When the split frame 140 rotates and unfolds to be perpendicular to the main frame 110, the omnidirectional casters 150 simultaneously fall to the ground, forming a four-corner stable platform with the directional casters 120, improving the loading and transport capacity of the underground multi-functional transport vehicle 100.
[0030] The underground multi-functional transport vehicle 100 provided in this application achieves functional integration and conversion through a rotational deformation structure between the main frame 110 and the split frame 140. In the first configuration, i.e., under light-load transport with two wheels on the ground, the split frame 140 retracts around the rotating connecting rod 130 until it is parallel to and overlaps with the main frame 110. The swivel casters 150 automatically rise and suspend themselves, then are stored inside the directional casters 120, forming a support structure for the directional casters 120, enabling flexible and efficient transport in narrow tunnels. In the second configuration, i.e., under heavy-load transport with four wheels on the ground, the split frame 140 rotates and unfolds until it is perpendicular to the main frame 110. The swivel casters 150 simultaneously descend and touch the ground, forming a stable four-corner support platform with the directional casters 120, enabling heavy-load transport of multiple materials. Simultaneously, the hydraulic lifting platform 160 is lowered to a preset height and the pallet 170 unfolds into a ramp, forming a continuous loading and unloading platform from the ground to the platform 160 and then to the pallet 170. Material lifting, positioning, and sliding loading and unloading can be completed without external equipment.
[0031] By converting the 140-type split frame from parallel folding to vertical unfolding, a single unit can simultaneously switch between roadway mobile transportation and heavy loading and unloading functions, solving the efficiency bottlenecks and safety risks caused by the single function of traditional equipment. It has the advantages of short operation mode switching time and high functional integration.
[0032] In specific applications, the underground multi-functional transport vehicle 100 can be specifically a multi-functional underground operation vehicle used for material transportation and equipment handling in coal mine roadways. The main frame 110 can be specifically set as the main push rod, and the split frame 140 can be specifically set as the secondary push rod. The specific selection can be made according to the actual use situation, and will not be listed here.
[0033] In some embodiments, optionally, such as Figure 1 , Figure 3 and Figure 4 As shown, the underground multi-functional transport vehicle 100 also includes: a storage plate 160, which is movably connected to the front end of the main frame 110 for carrying materials; and a hydraulic lifting mechanism 162, which is set on the main frame 110 and connected to the storage plate 160 to adjust the storage plate 160 to rise and fall within a preset height.
[0034] Specifically, such as Figure 4 and Figure 5 As shown, the underground multi-functional transport vehicle 100 also includes a storage plate 160 and a hydraulic lifting mechanism 162. The storage plate 160 is movably connected to the front end of the main frame 110 and located above the directional casters 120, and is used to carry materials. The hydraulic lifting mechanism 162 is mounted on the main frame 110 and connected to the storage plate 160 to adjust the lifting of the storage plate 160 within a preset height.
[0035] Specifically, the hydraulic lifting mechanism 162 is fixed inside the main frame 110 and is hinged to the bottom surface of the storage plate 160 through the top of the piston rod. By controlling the hydraulic oil circuit, the storage plate 160 is driven to lift and lower precisely within a height range of 0.5m to 1.5m. The hydraulic lifting mechanism 162 replaces manual lifting, saving manpower. Moreover, when transporting at high positions, the storage plate 160 avoids roadway pipelines, and when loading and unloading at low positions, it eliminates the risk of personnel bending over. In addition, the hydraulic suspension compensates for ground undulations in real time to ensure that the storage plate 160 is always horizontal, improving the transportation stability of the underground multi-functional transport vehicle 100.
[0036] In specific applications, the hydraulic lifting mechanism 162 can be specifically configured as a hydraulic cylinder, and the storage plate 160 can be specifically made of steel plate or high-strength explosion-proof material. The specific choice can be made according to the actual use situation, and will not be listed here.
[0037] In some embodiments, optionally, such as Figure 4 , Figure 5 and Figure 6 As shown, the shelf 160 is provided with an anti-slip layer 164, which is used to prevent materials from slipping.
[0038] Specifically, the shelf 160 is provided with an anti-slip layer 164, which is used to prevent materials from slipping and improve the stability of the shelf 160 in preventing materials from falling.
[0039] In specific applications, the anti-slip layer 164 can be specifically set as an anti-slip mat or an anti-slip coating, or anti-slip textures can be set on the shelf 160. The specific choice can be made according to the actual use situation, and will not be listed here.
[0040] In some embodiments, optionally, such as Figure 1 and Figure 4 As shown, the preset height is H, and the preset height H satisfies: 0.5m≤H≤1.5m.
[0041] Specifically, such as Figure 1 As shown, the hydraulic lifting mechanism 162 is mounted on the main frame 110 and connected to the storage plate 160 to adjust the lifting of the storage plate 160 within a height range of 0.5m to 1.5m. The hydraulic lifting mechanism 162 replaces manual lifting, saving manpower. Moreover, when transporting at high levels, the storage plate 160 avoids roadway pipelines, and when loading and unloading at low levels, it eliminates the risk of personnel bending over. In addition, the hydraulic suspension compensates for ground undulations in real time to ensure that the storage plate 160 is always horizontal, improving the transportation stability of the underground multi-functional transport vehicle 100.
[0042] In some embodiments, optionally, such as Figure 5As shown, the underground multi-functional transport vehicle 100 also includes: a pallet 170, which is disposed between the swivel caster 150 and the rotating connecting rod 130. The swivel caster 150 is connected to one end face of the pallet 170, and the rotating connecting rod 130 and the split frame 140 are connected to the other end face of the pallet 170 away from the swivel caster 150. In the first state, the swivel caster 150 and the pallet 170 are housed inside the directional caster 120, and the storage plate 160 is used to place items. In the second state, the pallet 170 and the swivel caster 150 rotate with the split frame 140 to the rear end of the main frame 110. The swivel caster 150 and the directional caster 120 jointly support the main frame 110, and a storage platform is formed between the storage plate 160 and the pallet 170.
[0043] Specifically, the underground multi-functional transport vehicle 100 also includes a pallet 170. The pallet 170 is positioned between the swivel caster 150 and the rotating connecting rod 130. The swivel caster 150 is connected to one end face of the pallet 170, while the rotating connecting rod 130 and the split frame 140 are connected to the other end face of the pallet 170 opposite to the swivel caster 150. In other words, the pallet 170 serves as the connecting end plate for the swivel caster 150, the rotating connecting rod 130, and the split frame 140. The rotating connecting rod 130 and the split frame 140 are connected to one side of the pallet 170, and the swivel caster 150 is connected to the other side. During the rotation and deformation of the split frame 140, the swivel caster 150 can be moved via the pallet 170. In the first configuration, the pallet 170 and the swivel caster 150 are housed inside the directional caster 120, enabling flexible and efficient transport in narrow tunnels. In the second configuration, the pallet 170 rotates with the split frame 140 to the rear end of the main frame 110, and its upper surface automatically aligns with the edge of the storage plate 160, forming a continuous storage platform. The effective load-bearing area increases by 80%. For example, the original storage plate 160 is 1m... 2 After expansion, it becomes 1.8m. 2 It meets the loading requirements of large-volume equipment. Moreover, in the second configuration, it bears the load transmitted by the split frame 140 and together with the swivel casters 150, it forms four corner support points to avoid the risk of tipping over under heavy load.
[0044] In practical applications, the pallet 170 can be configured as a deformable slot located on both sides of the vehicle body. Its form can be switched manually or electrically, supporting rapid switching between "transport mode" and "loading / unloading mode" for the pallet truck. In loading / unloading mode, the deformable slot unfolds to form a ramp, facilitating material sliding. The specific configuration can be selected based on actual usage conditions, and will not be listed here.
[0045] In some embodiments, optionally, such as Figure 5As shown, the underground multi-functional transport vehicle 100 also includes: a frame clamp 180, which is disposed on the main frame 110 and used to fix the split frame 140; wherein, in the first state, the split frame 140 and the main frame 110 are stacked in parallel, and the split frame 140 is clamped in the frame clamp 180; in the second state, the split frame 140 is disengaged from the frame clamp 180, and the split frame 140 rotates and unfolds around the rotating connecting rod 130.
[0046] Specifically, the underground multi-functional transport vehicle 100 also includes a frame clamp 180. The frame clamp 180 is mounted on the main frame 110 and is used to fix the split frame 140. In the first configuration, the split frame 140 is parallel to the main frame 110 and is secured within the frame clamp 180. In the second configuration, the split frame 140 disengages from the frame clamp 180 and rotates around the rotating connecting rod 130. The frame clamp 180 temporarily fixes the split frame 140, ensuring that the split frame 140 is stably fixed to the main frame 110 in the first configuration, thus improving the safety and reliability of the underground multi-functional transport vehicle 100.
[0047] In practical applications, the frame clamp 180 can be specifically a secondary push rod slot. The frame clamp 180 is located below the main frame 110 and is fixed or detached from the split frame 140 through an electromagnetic lock. The split frame 140 can be rotated and adjusted in length from 0.8m to 1.2m to extend the length of the storage board 160 and improve the auxiliary loading and unloading operation capability. The specific selection can be made according to the actual use situation, and will not be listed here.
[0048] In some embodiments, optionally, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the underground multi-functional transport vehicle 100 also includes: a rubber handle 190, which is mounted on the main frame 110 and located at the end of the main frame 110 away from the storage plate 160. When the split frame 140 is in the first state, the directional caster 120 supports the front end of the main frame 110, and the rubber handle 190 is used to support the rear end of the main frame 110.
[0049] Specifically, such as Figure 4As shown, the underground multi-functional transport vehicle 100 also includes a rubber handle 190. The rubber handle 190 is mounted on the main frame 110 and located at the end of the main frame 110 furthest from the storage plate 160, i.e., at the rear end of the main frame 110, opposite to the storage plate 160. Thus, when the split frame 140 is in its first configuration, the directional casters 120 support the front end of the main frame 110, and the operator can grip the rubber handle 190 to support the rear end of the main frame 110, facilitating material transport.
[0050] In some embodiments, optionally, such as Figure 2 As shown, the underground multi-functional transport vehicle 100 also includes a drive assembly 192, which is mounted on the main frame 110 and connected to the directional casters 120 for driving the directional casters 120.
[0051] Specifically, the underground multi-functional transport vehicle 100 also includes a drive assembly 192. The drive assembly 192 is mounted on the main frame 110 and connected to the directional casters 120 for driving the directional casters 120.
[0052] In some embodiments, optionally, such as Figure 2 As shown, the underground multi-functional transport vehicle 100 also includes a locking component 194, which is mounted on the main frame 110 and connected to the directional casters 120 for locking the directional casters 120.
[0053] Specifically, the underground multi-functional transport vehicle 100 also includes a locking component 194. The locking component 194 is mounted on the main frame 110 and connected to the directional casters 120 for locking the directional casters 120.
[0054] In specific applications, the drive component 192 can be an explosion-proof motor. The drive component 192 transmits power to the directional casters 120 through a gear transmission system, enabling forward or backward movement. Operators can manually control the direction using the rubber handle 190, or activate the intelligent navigation system, which has a built-in lidar and inertial navigation module to automatically plan the path and avoid obstacles.
[0055] In addition, the storage plate 160 can be precisely adjusted in height via a control panel or remote terminal through a hydraulic lifting mechanism 162 to adapt to different loading and unloading scenarios. The split frame 140 detaches from the frame clamp 180 and works in conjunction with the rotating connecting rod 130 to form a temporary loading and unloading platform. Combined with the ramp structure of the pallet 170, it enables rapid material sliding.
[0056] In addition, the ball joint structure of the swivel caster 150 allows it to turn freely, and combined with the locking function of the directional caster 120, it can make zero-radius turns in narrow alleys. The suspension system of the swivel caster 150 responds to ground undulations in real time to ensure vehicle stability.
[0057] In addition, the main frame 110 is equipped with an intelligent system that integrates ultrasonic obstacle avoidance sensors and an emergency stop button. When an obstacle or person is detected approaching, the system automatically brakes and alerts the operator through sound and light alarms.
[0058] In some embodiments, optionally, such as Figure 6 As shown, the split frame 140 and the main frame 110 are at a preset angle β, which satisfies the following conditions: 90°≤β≤150°.
[0059] Specifically, in the second configuration, the split frame 140 rotates and unfolds around the rotating connecting rod 130, with the split frame 140 forming an angle of 90° to 150° with the main frame 110. On the one hand, this improves the loading capacity of the main frame 110. On the other hand, in the second configuration, one end of the split frame 140 becomes a push-pull handle for the transport vehicle. The 90° to 150° angle between the split frame 140 and the main frame 110 facilitates the operation of the split frame 140 by the operator to push and pull it.
[0060] In specific applications, the included angle between the split frame 140 and the main frame 110 can be set to 90°, 100°, 120° or 150° to facilitate push and pull operations by operators. The specific angle can be selected according to the actual use situation, and will not be listed here.
[0061] In the description of this application, the term "multiple" refers to two or more. Unless otherwise expressly defined, the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "connection," "installation," "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.
[0062] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0063] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A multi-functional underground transport vehicle, characterized in that, include: Main frame; Fixed casters are installed at the front end of the main frame; A rotating connecting rod, one end of which is rotatably connected to the main vehicle frame; The vehicle frame is a split frame, which is connected to the other end of the rotating connecting rod; Universal casters are installed at the connection end between the split frame and the rotating connecting rod; In the first state, the split frame rotates and retracts around the rotating connecting rod, the split frame and the main frame are stacked in parallel, the omnidirectional casters are raised and suspended and stored inside the directional casters, and the directional casters support the main frame alone. When the split frame is in the second state, the split frame rotates and unfolds around the rotating connecting rod, and the split frame and the main frame form a preset angle. The omnidirectional casters fall down and together with the directional casters support the main frame.
2. The underground multi-functional transport vehicle according to claim 1, characterized in that, The underground multi-functional transport vehicle also includes: A shelf, movably connected to the front end of the main frame, is used to carry materials; A hydraulic lifting mechanism is mounted on the main frame and connected to the storage plate to adjust the storage plate to rise and fall within a preset height.
3. The underground multi-functional transport vehicle according to claim 2, characterized in that, The shelf is provided with an anti-slip layer to prevent materials from slipping.
4. The underground multi-functional transport vehicle according to claim 2, characterized in that, The preset height is H, and the preset height H satisfies: 0.5m≤H≤1.5m.
5. The underground multi-functional transport vehicle according to claim 2, characterized in that, The underground multi-functional transport vehicle also includes: A card plate is provided between the swivel caster and the rotating connecting rod. The swivel caster is connected to one end face of the card plate, and the rotating connecting rod and the split frame are connected to the other end face of the card plate opposite to the swivel caster. In the first configuration, the omnidirectional casters and the clamping plate are housed inside the directional casters, and the shelf is used to place items. In the second configuration, the clamping plate and the omnidirectional casters rotate with the omnidirectional frame to the rear end of the main frame, and the omnidirectional casters and the directional casters together support the main frame. A storage platform is formed between the shelf and the clamping plate.
6. The underground multi-functional transport vehicle according to claim 1, characterized in that, The underground multi-functional transport vehicle also includes: A frame clip is provided on the main frame and is used to fix the split frame; In the first state, the split frame is stacked parallel to the main frame, and the split frame is secured in the frame clamp. In the second state, the split frame disengages from the frame clamp and rotates around the rotating connecting rod.
7. The underground multi-functional transport vehicle according to claim 2, characterized in that, The underground multi-functional transport vehicle also includes: A rubber handle is provided on the main frame and located at the end of the main frame away from the shelf. When the split frame is in the first state, the directional caster supports the front end of the main frame, and the rubber handle is used to support the rear end of the main frame.
8. The underground multi-functional transport vehicle according to claim 1, characterized in that, The underground multi-functional transport vehicle also includes: A drive assembly is mounted on the main frame and connected to the directional casters for driving the directional casters.
9. The underground multi-functional transport vehicle according to claim 1, characterized in that, The underground multi-functional transport vehicle also includes: A locking component is disposed on the main frame and connected to the directional caster for locking the directional caster.
10. The underground multi-functional transport vehicle according to any one of claims 1 to 9, characterized in that, The split frame and the main frame are at a preset angle β, which satisfies the following conditions: 90°≤β≤150°.