Coal Mine Underground Concrete Mixer Truck Unloading Platform
By designing a dumping platform for underground concrete mixer trucks in coal mines that adapts to different wheel gauges, the problem of inconsistent heights between the underground concrete mixer trucks and the pump's inlet and outlet was solved. This achieved uniform lifting of the truck's outlet and easy mobility of the platform, thereby improving concrete conveying efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GOD EAST DAY LONG GRP CO LTD SEA THEN COAL MINE
- Filing Date
- 2025-08-29
- Publication Date
- 2026-06-30
AI Technical Summary
The inconsistency in the inlet and outlet heights of existing underground concrete mixer trucks and concrete pumps in coal mines leads to low concrete conveying efficiency, and different models of mixer trucks cannot be used in roadways of uniform width.
A concrete mixer truck unloading platform for underground coal mines was designed, including a first support platform and a second support platform, which are connected by a connecting beam. The support platforms are equipped with a front frame, a middle frame and a rear frame with increasing height, and the top is an inclined platform to accommodate mixer trucks with different wheelbases. It is detachable and retractable, and is equipped with steel wire strips and reinforcements to enhance stability.
This system ensures that the discharge ports of different types of concrete tank trucks are higher than the inlet ports of the pumps, solving the problem of excessively low discharge ports, ensuring rapid concrete transfer and easy platform mobility, and improving conveying efficiency.
Smart Images

Figure CN224429539U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of coal mine goaf retention equipment, specifically relating to a coal mine underground concrete mixer truck unloading platform. Background Technology
[0002] In my country, underground concrete mixer trucks are mainly used for underground coal mine paving, wall spraying, and concrete pumping. They solve the problem of concrete transportation in underground coal mine construction, improve the quality of underground road paving, and address the outdated semi-mechanized or manual feeding methods used for concrete transportation and supply. The mixing drums of underground concrete mixer trucks are mostly horizontally arranged, significantly reducing the overall height compared to surface-mounted inclined mixing drum concrete mixer trucks. Therefore, they can be used for concrete transportation in underground mines, railway tunnels, hydropower projects, subways, and national defense projects. The application of concrete mixer trucks has improved the semi-mechanized or manual feeding methods for concrete spraying and supply in underground coal mine shotcrete support, increasing the mechanization level of concrete paving, spraying, pumping, and support operations.
[0003] Currently, most coal mines use a wide variety of concrete mixer trucks, and the models vary depending on the specific mine. When concrete mixer trucks pour concrete into underground pumps, the following situations are likely to occur: (1) The discharge port height of the concrete mixer truck is lower than the inlet height of the concrete pump, affecting the concrete pumping efficiency. (2) The wheelbase of each concrete mixer truck model is different, making it impossible to use a uniform width to raise the roadway floor. (3) If pipeline transportation is used, pipe blockage is likely to occur, reducing the concrete transportation efficiency. Therefore, it is necessary to design an underground concrete mixer truck unloading platform in coal mines to solve the problem of the height difference between the discharge port and inlet of underground concrete mixer trucks of various models and underground pumps. Utility Model Content
[0004] The purpose of this utility model is to provide a concrete mixer truck unloading platform in underground coal mines, which solves the problem of inconsistent heights between the concrete mixer truck and the concrete pump inlet / outlet under existing practical conditions.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a concrete mixer truck unloading platform in a coal mine, comprising a first support platform and a second support platform, which are connected together by a connecting beam; the first support platform includes a support base, on which a front frame, a middle frame, and a rear frame with progressively increasing heights are provided, and the tops of the front frame, the middle frame, and the rear frame are all provided with inclined platforms; the front frame, the middle frame, and the rear frame are all composed of multiple pairs of supports with progressively increasing heights; the second support platform has the same structure as the first support platform.
[0006] As a preferred technical solution of this utility model, the front and rear sides of the middle section are respectively connected to the front frame and the rear frame by bolts.
[0007] As a preferred technical solution of this utility model, the surface of the inclined platform is provided with steel wire strips.
[0008] In a preferred embodiment of this invention, the first support platform and the second support platform are connected together by a plurality of connecting beams.
[0009] As a preferred technical solution of this utility model, the connecting beam is a telescopic beam.
[0010] As a preferred technical solution of this utility model, the rear end of the rear frame is provided with a reinforcing member, which is fixed to the ground.
[0011] As a preferred technical solution of this utility model, the reinforcing component is a tripod structure.
[0012] As a preferred technical solution of this utility model, a front extension frame is provided on the front side of the front frame.
[0013] The beneficial effects of this utility model are:
[0014] (1) The coal mine underground concrete mixer truck unloading platform of this utility model can provide unloading platform for underground concrete mixer trucks with different wheel gauges, so that the underground concrete discharge port with different wheel gauges is higher than the pump inlet.
[0015] (2) The concrete pouring platform for underground concrete trucks in coal mines of this utility model can effectively solve the problem that the concrete can not be poured into the pump inlet because the discharge port of the underground concrete truck is too low. The pouring platform can be continuously extended to continuously lift the concrete truck with the low discharge port.
[0016] (3) The concrete mixer truck unloading platform of this utility model is connected by bolts. It is detachable, easy to move, and can move between each roadway in the coal mine by relying on the underground equipment transport vehicle.
[0017] (4) The coal mine underground concrete mixer truck unloading platform of this utility model can realize the rapid transfer of concrete between underground concrete mixer trucks and pumps. Attached Figure Description
[0018] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:
[0019] Figure 1 This is a front view of the concrete mixer truck unloading material in an underground coal mine according to this utility model.
[0020] Figure 2 This is a right view of the underground concrete mixer truck unloading platform of this utility model in coal mines;
[0021] Figure 3 This is a top view of the concrete mixer truck unloading platform in a coal mine according to this utility model.
[0022] In the diagram: 1. Inclined platform, 2. Bolt, 3. Reinforcing component, 4. Front support frame, 5. Front frame, 6. Middle frame, 7. Rear frame, 8. Support base, 9. Connecting beam. Detailed Implementation
[0023] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0024] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0025] Example 1
[0026] like Figure 1 and Figure 2 As shown, this utility model discloses a concrete mixer truck unloading platform in a coal mine, comprising a first support platform and a second support platform.
[0027] The first support platform and the second support platform are connected together by a connecting beam 9; the first support platform includes a support base 8, on which a front frame 5, a middle frame 6 and a rear frame 7 with progressively increasing heights are provided. The tops of the front frame 5, the middle frame 6 and the rear frame 7 are all arranged with inclined platforms 1 at an angle upwards; the front frame 5, the middle frame 6 and the rear frame 7 are all composed of multiple pairs of supports with progressively increasing heights.
[0028] The second support platform has the same structure as the first support platform.
[0029] This utility model discloses a concrete mixer truck unloading platform in a coal mine, which consists of two parts (i.e., a first support platform and a second support platform). The two parts are connected by a connecting beam 9. The distance between the two parts can be adjusted according to the actual wheel track of the concrete mixer truck, thereby adapting to the unloading needs of concrete mixer trucks with various wheel tracks.
[0030] During operation, the two wheels of the concrete mixer truck drive up the first and second support platforms. Once it reaches the appropriate position, the truck can be operated to unload the material into the concrete pump inlet.
[0031] Example 2
[0032] like Figure 1 and Figure 2 As shown in Example 1, Example 2, a concrete mixer truck unloading platform for a coal mine, also includes a first support platform and a second support platform. The first and second support platforms are connected by a connecting beam 9. The first support platform includes a support base 8, on which a front frame 5, a middle frame 6, and a rear frame 7 are arranged with progressively increasing heights. Each of the front frame 5, middle frame 6, and rear frame 7 has an inclined platform 1 arranged at its top. Each of the front frame 5, middle frame 6, and rear frame 7 consists of multiple pairs of supports with progressively increasing heights. The second support platform has the same structure as the first support platform.
[0033] Unlike Embodiment 1, in Embodiment 2, the front and rear sides of the middle 6 of this utility model are connected to the front frame 5 and the rear frame 7 respectively by bolts 2.
[0034] Since bolt 2 is detachable, the frame can be installed or disassembled according to the actual height difference between the concrete mixer truck outlet and the pump inlet. If the height is still insufficient, a frame can be added after the rear frame 7.
[0035] During operation, the two wheels of the concrete mixer truck drive up the first and second support platforms. Once it reaches the appropriate position, the truck can be operated to unload the material into the concrete pump inlet.
[0036] Example 3
[0037] like Figure 1 and Figure 2 As shown in Embodiment 1, Embodiment 3, a concrete mixer truck unloading platform for coal mines according to this utility model, also includes a first support platform and a second support platform. The first support platform and the second support platform are connected together by a connecting beam 9; the first support platform includes a support base 8, on which a front frame 5, a middle frame 6, and a rear frame 7 with progressively increasing heights are arranged. The tops of the front frame 5, the middle frame 6, and the rear frame 7 are all arranged with inclined platforms 1 at an upward angle; the front frame 5, the middle frame 6, and the rear frame 7 are all composed of multiple pairs of supports with progressively increasing heights. The second support platform has the same structure as the first support platform.
[0038] Unlike Embodiment 1, in Embodiment 3, the front and rear sides of the middle 6 are connected to the front frame 5 and the rear frame 7 respectively by bolts 2 in a coal mine underground concrete mixer truck unloading platform of this utility model.
[0039] Since bolt 2 is detachable, the frame can be installed or disassembled according to the actual height difference between the concrete mixer truck outlet and the pump inlet. If the height is still insufficient, a frame can be added after the rear frame 7.
[0040] Unlike Embodiment 1, in Embodiment 3, a concrete mixer truck unloading platform for coal mines according to this utility model has steel wire strips on the surface of the inclined platform 1.
[0041] Small steel wires are welded onto the inclined platform 1 to increase the friction between the concrete mixer truck tires and the inclined platform, preventing the wheels from slipping.
[0042] During operation, the two wheels of the concrete mixer truck drive up the first and second support platforms. Once it reaches the appropriate position, the truck can be operated to unload the material into the concrete pump inlet.
[0043] Example 4
[0044] like Figure 1 and Figure 2 As shown in Example 1, Example 4 of this utility model, a concrete mixer truck unloading platform in a coal mine, also includes a first support platform and a second support platform. The first support platform and the second support platform are connected together by a connecting beam 9; the first support platform includes a support base 8, on which a front frame 5, a middle frame 6, and a rear frame 7 are arranged with progressively increasing heights. The tops of the front frame 5, the middle frame 6, and the rear frame 7 are all inclined platforms 1 arranged at an upward angle; the front frame 5, the middle frame 6, and the rear frame 7 are all composed of multiple pairs of supports with progressively increasing heights. The second support platform has the same structure as the first support platform.
[0045] Unlike Embodiment 1, in Embodiment 4, the front and rear sides of the middle 6 are connected to the front frame 5 and the rear frame 7 respectively by bolts 2 in a coal mine underground concrete mixer truck unloading platform of this utility model.
[0046] Since bolt 2 is detachable, the frame can be installed or disassembled according to the actual height difference between the concrete mixer truck outlet and the pump inlet. If the height is still insufficient, a frame can be added after the rear frame 7.
[0047] Unlike Embodiment 1, in Embodiment 4, a concrete mixer truck unloading platform for coal mines according to this utility model has steel wire strips on the surface of the inclined platform 1.
[0048] Small steel wires are welded onto the inclined platform 1 to increase the friction between the concrete mixer truck tires and the inclined platform, preventing the wheels from slipping.
[0049] Unlike Embodiment 1, in Embodiment 4, the connecting beam 9 of this utility model, which is a concrete mixer truck unloading platform in a coal mine, is a telescopic beam.
[0050] The connecting beam 9 is telescopic and can lock the left and right parts of the unloading platform after it is fixed to prevent the platform from tilting or deviating.
[0051] During operation, the two wheels of the concrete mixer truck drive up the first and second support platforms. Once it reaches the appropriate position, the truck can be operated to unload the material into the concrete pump inlet.
[0052] Example 5
[0053] like Figure 1 and Figure 2 As shown in Example 1, Example 5, a concrete mixer truck unloading platform for coal mines according to this utility model, also includes a first support platform and a second support platform. The first support platform and the second support platform are connected together by a connecting beam 9; the first support platform includes a support base 8, on which a front frame 5, a middle frame 6, and a rear frame 7 with progressively increasing heights are arranged. The tops of the front frame 5, the middle frame 6, and the rear frame 7 are all inclined platforms 1 arranged at an upward angle; the front frame 5, the middle frame 6, and the rear frame 7 are all composed of multiple pairs of supports with progressively increasing heights. The second support platform has the same structure as the first support platform.
[0054] Unlike Embodiment 1, in Embodiment 5, the front and rear sides of the middle 6 are connected to the front frame 5 and the rear frame 7 respectively by bolts 2 in a coal mine underground concrete mixer truck unloading platform of this utility model.
[0055] Since bolt 2 is detachable, the frame can be installed or disassembled according to the actual height difference between the concrete mixer truck outlet and the pump inlet. If the height is still insufficient, a frame can be added after the rear frame 7.
[0056] Unlike Embodiment 1, in Embodiment 5, a concrete mixer truck unloading platform for underground coal mines according to this utility model, the surface of the inclined platform 1 is provided with steel wire strips.
[0057] Small steel wires are welded onto the inclined platform 1 to increase the friction between the concrete mixer truck tires and the inclined platform, preventing the wheels from slipping.
[0058] Unlike Embodiment 1, in Embodiment 5, the connecting beam 9 of this utility model, which is a concrete mixer truck unloading platform in a coal mine, is a telescopic beam.
[0059] The connecting beam 9 is telescopic and can lock the left and right parts of the unloading platform after it is fixed to prevent the platform from tilting or deviating.
[0060] Unlike Embodiment 1, in Embodiment 5, a concrete mixer truck unloading platform for underground coal mines according to this utility model, a reinforcing member 3 is provided at the tail of the rear frame 7. The reinforcing member 3 is a triangular frame structure and is fixed to the ground.
[0061] like Figure 3 As shown, the reinforcement 3 can be bolted to the rear frame 7, and bolts can be driven into the ground at the rear reinforcement 3. At the same time, the support base 8 is made of very rough thin steel plate, which can improve the friction coefficient between the unloading platform and the ground. The combination of the two can prevent the concrete mixer truck from pushing the unloading platform when reversing or moving forward.
[0062] During operation, the two wheels of the concrete mixer truck drive up the first and second support platforms. Once it reaches the appropriate position, the truck can be operated to unload the material into the concrete pump inlet.
[0063] Example 6
[0064] like Figure 1 and Figure 2 As shown in Example 1, Example 6, a concrete mixer truck unloading platform for a coal mine, also includes a first support platform and a second support platform. The first and second support platforms are connected by a connecting beam 9. The first support platform includes a support base 8, on which a front frame 5, a middle frame 6, and a rear frame 7 are arranged with progressively increasing heights. The tops of the front frame 5, middle frame 6, and rear frame 7 are all inclined platforms 1. Each of the front frame 5, middle frame 6, and rear frame 7 consists of multiple pairs of supports with progressively increasing heights. The second support platform has the same structure as the first support platform.
[0065] Unlike Embodiment 1, in Embodiment 6, the front and rear sides of the middle 6 are connected to the front frame 5 and the rear frame 7 respectively by bolts 2 in a coal mine underground concrete mixer truck unloading platform of this utility model.
[0066] Since bolt 2 is detachable, the frame can be installed or disassembled according to the actual height difference between the concrete mixer truck outlet and the pump inlet. If the height is still insufficient, a frame can be added after the rear frame 7.
[0067] Unlike Embodiment 1, in Embodiment 6, a concrete mixer truck unloading platform for underground coal mines according to this utility model has steel wire strips on the surface of the inclined platform 1.
[0068] Small steel wires are welded onto the inclined platform 1 to increase the friction between the concrete mixer truck tires and the inclined platform, preventing the wheels from slipping.
[0069] Unlike Embodiment 1, in Embodiment 6, the connecting beam 9 of this utility model, which is a concrete mixer truck unloading platform in a coal mine, is a telescopic beam.
[0070] The connecting beam 9 is telescopic and can lock the left and right parts of the unloading platform after it is fixed to prevent the platform from tilting or deviating.
[0071] Unlike Embodiment 1, in Embodiment 6, a concrete mixer truck unloading platform for underground coal mines according to this utility model is provided with a reinforcing member 3 at the rear of the rear frame 7. The reinforcing member 3 is a triangular frame structure and is fixed to the ground.
[0072] like Figure 3 As shown, the reinforcement 3 can be bolted to the rear frame 7, and bolts can be driven into the ground at the rear reinforcement 3. At the same time, the support base 8 is made of very rough thin steel plate, which can improve the friction coefficient between the unloading platform and the ground. The combination of the two can prevent the concrete mixer truck from pushing the unloading platform when reversing or moving forward.
[0073] Unlike Embodiment 1, in Embodiment 6, a front probe frame 4 is provided on the front side of the front frame 5 of this utility model for unloading concrete mixer trucks in a coal mine.
[0074] The front support frame 4 forms the front half of the front frame 5, which enables the front frame 5 to contact the ground and ensures that the concrete mixer truck can be loaded onto the front frame 5 more smoothly.
[0075] During operation, the two wheels of the concrete mixer truck drive up the first and second support platforms. Once it reaches the appropriate position, the truck can be operated to unload the material into the concrete pump inlet.
[0076] The foregoing description illustrates and describes several preferred embodiments of the utility model. However, as previously stated, it should be understood that the utility model is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the utility model concept described herein through the foregoing teachings or the technology or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the utility model should be within the protection scope of the appended claims.
Claims
1. A concrete truck unloading platform for use in a coal mine, characterised in that, It includes a first support platform and a second support platform; the first support platform and the second support platform are connected together by a connecting beam (9); the first support platform includes a support base (8), on which a front frame (5), a middle frame (6) and a rear frame (7) with progressively increasing height are provided, and the top of the front frame (5), the middle frame (6) and the rear frame (7) are all arranged with inclined platforms (1) at an angle upward; the front frame (5), the middle frame (6) and the rear frame (7) are all composed of multiple pairs of supports with progressively increasing height; the structure of the second support platform is the same as the structure of the first support platform.
2. The coal mine underground concrete tank truck dumping platform according to claim 1, characterized in that, The front and rear sides of the middle frame (6) are connected to the front frame (5) and the rear frame (7) respectively by bolts (2).
3. The coal mine underground concrete tank truck dumping platform according to claim 2, characterized in that, The surface of the inclined platform (1) is provided with steel wire strips.
4. The coal mine underground concrete tank truck dumping platform according to claim 3, characterized in that, The first support platform and the second support platform are connected together by multiple connecting beams (9).
5. The coal mine underground concrete tank truck dumping platform according to claim 4, characterized in that, The connecting beam (9) is a telescopic beam.
6. The coal mine underground concrete tank truck dumping platform according to claim 5, characterized in that, The rear frame (7) is provided with a reinforcement member (3) at its tail, and the reinforcement member (3) is fixed to the ground.
7. The coal mine underground concrete tank truck dumping platform according to claim 6, characterized in that, The reinforcement component (3) is a tripod structure.
8. The underground concrete mixer truck unloading platform in a coal mine according to claim 7, characterized in that, A front probe (4) is provided on the front side of the front frame (5).