Concrete steel pipe supporting frame device for roadway supporting

Abstract

The invention discloses a concrete steel pipe supporting frame device for roadway supporting. The concrete steel pipe supporting frame device comprises a U-shaped pipe, a first sleeve, a second sleeve, a first lead screw, a second lead screw and a height adjusting assembly. According to the concrete steel pipe supporting frame device for roadway supporting, the height adjusting assembly is introduced, so that the height of the supporting frame can be adjusted according to actual needs, the application range and flexibility of the supporting frame are greatly improved, and the supporting frame device can meet the supporting requirements of roadways of different shapes and sizes. The technology is mature and reliable, is simple and convenient to operate, and is easy to master by field staff. By improving the adaptability and the repeated utilization rate of the support, the roadway supporting cost can be reduced, and the economic benefits of a coal mine are improved. By means of the adjusting function of the device, the times of replacing the support due to mismatching in the roadway supporting process are reduced, and the construction efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of roadway support, in particular to a concrete steel pipe support frame device for roadway support. BACKGROUND

[0002] Coal mines are mainly exploited underground, and a large number of roadways need to be excavated underground. It is of great significance to maintain the smoothness of the roadway and the stability of the surrounding rock by using roadway support for coal mine construction and production. The basic purpose of supporting the roadway is to alleviate and reduce the movement of the surrounding rock, so that the roadway section does not become too small, and to prevent the surrounding rock from falling apart and being damaged.

[0003] For example, a concrete steel pipe support frame device for roadway support disclosed in the authorized announcement No. CN206246130U, although improved on the basis of the original steel pipe concrete support frame, needs to embed steel bars in the steel pipe shell, which is safe and reliable in technology and operation, and is conducive to improving the stability of the support frame. However, it does not have the function of adjusting the height of the support frame, which leads to the fact that it cannot be applied to all roadway supports, reducing the use range of the support frame. SUMMARY

[0004] The present application aims to at least solve one of the technical problems in the related art to some extent.

[0005] To this end, an embodiment of the present application proposes a concrete steel pipe support frame device for roadway support.

[0006] The concrete steel pipe support frame device for roadway support of the embodiment of the present application comprises a U-shaped pipe, a first sleeve, a second sleeve, a first lead screw, a second lead screw and a height adjusting assembly. The U-shaped pipe comprises a first straight pipe section, an elbow pipe section and a second straight pipe section connected in sequence. The first straight pipe section is provided with a first end plate at the port. The first end plate is provided with a first threaded hole. The second straight pipe section is provided with a second end plate at the port. The second end plate is provided with a second threaded hole.

[0007] The first sleeve is slidably sleeved on the first straight pipe section along the axial direction of the first straight pipe section. The first sleeve is provided with a third end plate at the port. The second sleeve is slidably sleeved on the second straight pipe section along the axial direction of the second straight pipe section. The second sleeve is provided with a fourth end plate at the port.

[0008] The first lead screw is arranged in the first sleeve. One end of the first lead screw is rotatably connected to the third end plate. The other end of the first lead screw is threadedly connected to the first threaded hole. The second lead screw is arranged in the second sleeve. One end of the second lead screw is rotatably connected to the fourth end plate. The other end of the second lead screw is threadedly connected to the second threaded hole.

[0009] The height adjusting assembly is connected with the first and second lead screws respectively, and is used to drive the first and second lead screws to rotate, so as to adjust the height of the U-shaped tube.

[0010] In some embodiments, the height adjusting assembly comprises a first rotating rod, a first bevel gear and a second bevel gear. The first rotating rod is rotatably arranged on the wall of the first sleeve, the first end of the first rotating rod is arranged in the first sleeve, the second end of the first rotating rod is arranged outside the first sleeve, the first bevel gear is arranged in the first sleeve and connected with the first rotating rod, and the second bevel gear is arranged on the first lead screw and engaged with the first bevel gear.

[0011] In some embodiments, the height adjusting assembly comprises a second rotating rod, a third bevel gear and a fourth bevel gear. The second rotating rod is rotatably arranged on the wall of the second sleeve, the second end of the second rotating rod is arranged in the second sleeve, the second end of the second rotating rod is arranged outside the second sleeve, the third bevel gear is arranged in the second sleeve and connected with the second rotating rod, and the fourth bevel gear is arranged on the second lead screw and engaged with the third bevel gear.

[0012] In some embodiments, the end face of the second end of the first rotating rod is provided with a first cross-shaped recess, and the end face of the second end of the second rotating rod is provided with a second cross-shaped recess.

[0013] In some embodiments, the height adjusting assembly comprises a first sliding rod, a second sliding rod and an adjusting sleeve. The first end of the first sliding rod is arranged through the first barrel of the adjusting sleeve and slidably matched with the adjusting sleeve along the axial direction of the adjusting sleeve, the end face of the second end of the first sliding rod is provided with a first cross-shaped protrusion matched with the first cross-shaped recess, the first end of the second sliding rod is arranged through the second barrel of the adjusting sleeve and slidably matched with the adjusting sleeve along the axial direction of the adjusting sleeve, and the end face of the second end of the second sliding rod is provided with a second cross-shaped protrusion matched with the second cross-shaped recess.

[0014] In some embodiments, the height adjusting assembly comprises a first anti-rotation sliding block and a second anti-rotation sliding block. The first and second anti-rotation sliding blocks are arranged in the adjusting sleeve and located between the first and second sliding rods. The first and second anti-rotation sliding blocks are square-shaped, the first anti-rotation sliding block is connected with the first sliding rod, and the second anti-rotation sliding block is connected with the second sliding rod.

[0015] In some embodiments, the height adjusting assembly comprises a fixed block arranged in the adjusting sleeve and between the first anti-rotation slider and the second anti-rotation slider, a first reset spring is arranged between the first anti-rotation slider and the fixed block, and a second reset spring is arranged between the second anti-rotation slider and the fixed block.

[0016] In some embodiments, the height adjusting assembly comprises a fixed block arranged in the adjusting sleeve and between the first anti-rotation slider and the second anti-rotation slider, a first magnetic pole and a second magnetic pole with the same polarity are arranged along the axial direction of the adjusting sleeve and between the first anti-rotation slider and the fixed block, the first magnetic pole is connected to the first anti-rotation slider, and the second magnetic pole is connected to the fixed block, a third magnetic pole and a fourth magnetic pole with the same polarity are arranged along the axial direction of the adjusting sleeve and between the second anti-rotation slider and the fixed block, the third magnetic pole is connected to the second anti-rotation slider, and the fourth magnetic pole is connected to the fixed block.

[0017] In some embodiments, the first sliding rod is provided with a first push rod perpendicular to the first sliding rod, and the second sliding rod is provided with a second push rod perpendicular to the second sliding rod.

[0018] In some embodiments, the adjusting sleeve is provided with a rotating disc on the outer circumferential surface, and the rotating disc is provided with a rotating handle perpendicular to the rotating disc.

[0019] The concrete steel pipe support frame device for roadway support according to the embodiments of the present application introduces a height adjusting assembly, so that the height of the support frame can be adjusted according to actual needs, greatly improving the application range and flexibility of the support frame and enabling the support frame to adapt to the requirements of roadway support of different shapes and sizes. The rotary motion of the screw pair is converted into linear motion, which is a mature and reliable technology, easy to operate and easy for site workers to master. By improving the adaptability and reusability of the support frame, the cost of roadway support can be reduced, and the economic benefits of the coal mine can be improved. The adjusting function of the device reduces the number of times of replacing the support frame due to mismatch during the roadway support process, and improves the construction efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 FIG. 1 is a structural schematic diagram of a concrete steel pipe support frame device for roadway support according to an embodiment of the present application.

[0021] Figure 2 FIG. 2 is a structural schematic diagram of a concrete steel pipe support frame device for roadway support according to an embodiment of the present application.

[0022] Figure 3 FIG. 3 is a structural schematic diagram of a height adjusting assembly according to an embodiment of the present application.

[0023] Figure 4 is a front view of a concrete steel pipe support frame device for roadway support according to an embodiment of the present application.

[0024] Reference signs:

[0025] 100, concrete steel pipe support frame device for roadway support; 1, U-shaped pipe; 101, first straight pipe section; 102, elbow pipe section; 103, second straight pipe section; 4, first sleeve; 5, second sleeve; 6, third sealing plate; 7, fourth sealing plate; 8, first lead screw; 9, second lead screw; 10, first rotating rod; 11, first bevel gear; 12, second bevel gear; 13, second rotating rod; 1301, second cross recess; 14, third bevel gear; 15, fourth bevel gear; 16, first sliding rod; 1601, first cross protrusion; 17, second sliding rod; 1701, second cross protrusion; 18, adjusting sleeve; 19, first anti-rotation sliding block; 20, second anti-rotation sliding block; 21, fixing block; 22, first return spring; 23, second return spring; 24, first magnetic pole; 25, second magnetic pole; 26, third magnetic pole; 27, fourth magnetic pole; 28, first sliding rod; 29, first push rod; 30, rotating disc; 31, rotating handle. DETAILED DESCRIPTION

[0026] Embodiments of the present application are described below in detail, examples of which are shown in the accompanying drawings. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0027] As shown in Figures 1 to 4 the concrete steel pipe support frame device for roadway support 100 according to the embodiment of the present application comprises a U-shaped pipe 1, a first sleeve 4, a second sleeve 5, a first lead screw 8, a second lead screw 9 and a height adjusting assembly. The U-shaped pipe 1 comprises a first straight pipe section 101, an elbow pipe section 102 and a second straight pipe section 103 connected in sequence, the first straight pipe section 101 is provided with a first sealing plate at the port thereof, the first sealing plate is provided with a first threaded hole, the second straight pipe section 103 is provided with a second sealing plate at the port thereof, and the second sealing plate is provided with a second threaded hole.

[0028] The first sleeve 4 is slidably sleeved on the first straight pipe section 101 along the axial direction of the first straight pipe section 101, the port of the first sleeve 4 is provided with a third sealing plate 6, and the second sleeve 5 is slidably sleeved on the second straight pipe section 103 along the axial direction of the second straight pipe section 103, the port of the second sleeve 5 is provided with a fourth sealing plate 7.

[0029] The first lead screw 8 is arranged in the first sleeve 4, one end of the first lead screw 8 is rotatably connected with the third sealing plate 6, and the other end of the first lead screw 8 is threadedly connected with the first threaded hole, the second lead screw 9 is arranged in the second sleeve 5, one end of the second lead screw 9 is rotatably connected with the fourth sealing plate 7, and the other end of the second lead screw 9 is threadedly connected with the second threaded hole.

[0030] The height adjusting assembly is connected with the first screw rod 8 and the second screw rod 9 respectively, and is used for driving the first screw rod 8 and the second screw rod 9 to rotate, so as to adjust the height of the U-shaped pipe 1.

[0031] The concrete steel pipe support frame device 100 for roadway support is used, and the rotary motion of the screw rod pair is converted into linear motion, so that the height of the support frame is adjusted. Specifically, the first sleeve 4 and the second sleeve 5 are fixed on the roadway floor, when the operator rotates the first screw rod 8 and the second screw rod 9, the rotation of the screw rod makes the sealing plate connected with the screw rod move in the axial direction, so that the first straight pipe section 101 and the second straight pipe section 103 of the U-shaped pipe 1 slide in the axial direction along the first sleeve 4 and the second sleeve 5, so as to adjust the support height of the U-shaped pipe 1, so as to adapt to the requirements of different roadway sections.

[0032] Therefore, the concrete steel pipe support frame device 100 for roadway support of the embodiment of the present application introduces the height adjusting assembly, so that the height of the support frame can be adjusted according to actual needs, greatly improving the application range and flexibility of the support frame, and being able to adapt to the requirements of roadway support of different shapes and sizes. The rotary motion of the screw rod pair is converted into linear motion, which is a mature and reliable technology, easy to operate and easy for field workers to master. By improving the adaptability and reusability of the support frame, the cost of roadway support can be reduced, and the economic benefit of the coal mine is improved. The adjustment function of the device reduces the number of times of replacing the support frame due to mismatching in the process of roadway support, and improves the construction efficiency.

[0033] In some embodiments, as shown in Figure 4 The height adjusting assembly includes a first rotating rod 10, a first bevel gear 11 and a second bevel gear 12. The first rotating rod 10 is rotatably arranged on the wall of the first sleeve 4, the first end of the first rotating rod 10 is arranged in the first sleeve 4, and the second end of the first rotating rod 10 is arranged outside the first sleeve 4. The first bevel gear 11 is arranged in the first sleeve 4 and connected with the first rotating rod 10, and the second bevel gear 12 is arranged on the first screw rod 8, and the first bevel gear 11 is engaged with the second bevel gear 12.

[0034] Specifically, the first rotating rod 10 is rotatably mounted on the wall of the first sleeve 4, with one end inside the first sleeve 4 and the other end outside. The operator can rotate the first rotating rod 10 externally. The first bevel gear 11 is located inside the first sleeve 4 and connected to the first rotating rod 10. When the first rotating rod 10 is rotated, the first bevel gear 11 also rotates. The second bevel gear 12 is located on the first lead screw 8 and meshes with the first bevel gear 11. When the first bevel gear 11 rotates, its meshing with the second bevel gear 12 causes the first lead screw 8 to rotate, thereby pushing the first straight pipe section 101 to move axially along the first sleeve 4, thus adjusting the height of the support frame.

[0035] The bevel gear engagement enables finer height adjustment, improving precision and accuracy. The height of the support frame can be easily adjusted via external operation of the first rotating rod 10, simplifying the operation process and reducing labor intensity. The design of the bevel gears and rotating rod makes the entire height adjustment assembly compact, occupying minimal space and facilitating installation and use in limited spaces. The bevel gear engagement improves the smoothness of the lead screw movement and the overall stability of the support frame. The bevel gear engagement design reduces direct contact and wear, increasing the component's lifespan and reliability.

[0036] In some embodiments, such as Figure 4 As shown, the height adjustment assembly includes a second rotating rod 13, a third bevel gear 14, and a fourth bevel gear 15. The second rotating rod 13 is rotatably mounted on the wall of the second sleeve 5, with one end inside the second sleeve 5 and the other end outside the second sleeve 5. The third bevel gear 14 is located inside the second sleeve 5 and connected to the second rotating rod 13. The fourth bevel gear 15 is mounted on the second lead screw 9, and the third bevel gear 14 meshes with the fourth bevel gear 15.

[0037] Specifically, the second rotating rod 13 is rotatably mounted on the wall of the second sleeve 5, with one end inside the second sleeve 5 and the other end outside. The operator can rotate the second rotating rod 13 externally. The third bevel gear 14 is located inside the second sleeve 5 and connected to the second rotating rod 13. When the second rotating rod 13 is rotated, the third bevel gear 14 also rotates. The fourth bevel gear 15 is located on the second lead screw 9 and meshes with the third bevel gear 14. When the third bevel gear 14 rotates, its meshing with the fourth bevel gear 15 causes the second lead screw 9 to rotate, thereby pushing the first straight pipe section 101 to move axially along the second sleeve 5, thus adjusting the height of the support frame.

[0038] Through the meshing of bevel gears, finer height adjustment can be achieved, improving the accuracy and precision of adjustment. By operating the second rotating rod 13 externally, the height of the support frame can be easily adjusted, simplifying the operation process and reducing labor intensity. The design of bevel gears and rotating rods makes the entire height adjustment assembly compact in structure, occupying less space, and facilitating installation and use in limited space. Through the meshing of bevel gears, the stability of screw movement and the overall stability of the support frame are improved. The meshing design of bevel gears reduces direct contact and wear, improving the service life and reliability of the assembly.

[0039] In some embodiments, as shown in Figure 2 the end face of the second end of the first rotating rod 10 is provided with a first cross recess, and the end face of the second end of the second rotating rod 13 is provided with a second cross recess 1301.

[0040] When the operator needs to adjust the height of the support frame, a special tool with a corresponding shaped protrusion (such as a wrench with a cross-shaped protrusion) can be inserted into the cross-shaped recess at the end of the rotating rod. By rotating the tool, the operator can easily rotate the first rotating rod 10 and the second rotating rod 13, thereby driving the corresponding bevel gears to rotate. The rotation of the bevel gears is achieved through the meshing mechanism, which drives the movement of the U-shaped tube 1 through the screw, thereby adjusting the height of the support frame.

[0041] The design of the cross-shaped recess makes the rotating operation of the rotating rod easier, and the operator can complete the height adjustment using only a simple tool. By using a special tool, the operator can complete the height adjustment of the support frame in a short time, improving the construction efficiency. The design of the cross-shaped recess helps to provide better control force, making the height adjustment of the support frame more accurate. During operation, the use of a special tool with a cross-shaped recess can reduce the risk of slipping and operational errors, improving the safety of the operation.

[0042] In some embodiments, as shown in Figure 2 and Figure 3 the height adjustment assembly includes a first sliding rod 16, a second sliding rod 17, and an adjustment sleeve 18. The first end of the first sliding rod 16 is inserted into the first barrel of the adjustment sleeve 18 and is slidably connected to the adjustment sleeve 18 along the axial direction of the adjustment sleeve 18, and the end face of the second end of the first sliding rod 16 is provided with a first cross-shaped protrusion 1601 which is matched with the first cross-shaped recess. The first end of the second sliding rod 17 is inserted into the second barrel of the adjustment sleeve 18 and is slidably connected to the adjustment sleeve 18 along the axial direction of the adjustment sleeve 18, and the end face of the second end of the second sliding rod 17 is provided with a second cross-shaped protrusion 1701 which is matched with the second cross-shaped recess 1301.

[0043] Specifically, during adjustment, first move the first slide rod 16 or the second slide rod 17, so that the first cross-shaped protrusion 1601 on the first slide rod 16 matches the first cross-shaped groove, and the second cross-shaped protrusion 1701 matches the second cross-shaped groove 1301. Then rotate the adjustment sleeve 18 to synchronously adjust the first rotating rod 10 and the second rotating rod 13 to rotate, so as to realize the adjustment of the height of the support frame, which is simple and efficient.

[0044] In some embodiments, the height adjustment assembly comprises a first anti-rotation slide block 19 and a second anti-rotation slide block 20, which are arranged in the adjustment sleeve 18 and between the first slide rod 16 and the second slide rod 17. The first anti-rotation slide block 19 and the second anti-rotation slide block 20 are both square, the first anti-rotation slide block 19 is connected with the first slide rod 16, and the second anti-rotation slide block 20 is connected with the second slide rod 17.

[0045] As shown in Figure 3 and Figure 4 , when the first slide rod 16 and the second slide rod 17 slide inside the adjustment sleeve 18, the first anti-rotation slide block 19 and the second anti-rotation slide block 20 are connected with them respectively, which restricts the rotation of the slide rods. Since the anti-rotation slide blocks are square in design, they match with the specific shape of the inner wall of the adjustment sleeve 18, which ensures that the slide rods can only move axially and cannot rotate around their own axes. When the operator rotates the slide rods by a special tool, the anti-rotation slide blocks prevent the rotation of the slide rods, so that the movement of the slide rods is limited to the axial direction, thereby realizing the accurate adjustment of the height of the support frame.

[0046] The design of the anti-rotation slide blocks effectively restricts the rotation of the slide rods, ensuring the stability during adjustment. Since the slide rods do not rotate, the height of the support frame can be more accurately controlled to meet the accuracy requirements of roadway support. By using the anti-rotation slide blocks, the complex locking or anti-rotation mechanism is reduced, making the structure simpler and facilitating production and maintenance.

[0047] In some embodiments, as shown in Figure 3 , the height adjustment assembly comprises a fixing block 21 arranged in the adjustment sleeve 18 and between the first anti-rotation slide block 19 and the second anti-rotation slide block 20, a first return spring 22 arranged between the first anti-rotation slide block 19 and the fixing block, and a second return spring 23 arranged between the second anti-rotation slide block 20 and the fixing block.

[0048] When the operator rotates the slide rods by a special tool to adjust the height of the support frame, the first anti-rotation slide block 19 and the second anti-rotation slide block 20 move with the axial movement of the slide rods. After the adjustment is completed, the first return spring 22 and the second return spring 23 will act on the first anti-rotation slide block 19 and the second anti-rotation slide block 20 to reset or lock the slide rods, ensuring that the slide rods are in a stable locked state.

[0049] The design of the reset spring allows the slide rod to automatically reset to the initial position after adjustment, simplifying the operation process and improving efficiency. The action of the reset spring ensures that the slide rod is in a stable locked state after adjustment, preventing accidental movement due to vibration or other external forces. The introduction of the reset spring helps improve the accuracy of adjustment, ensuring that the height of the support frame remains at the precise set value after adjustment.

[0050] In some embodiments, as shown in Figure 4 The first and second anti-rotation sliders 19 and 20 are arranged along the axial direction of the adjustment sleeve 18 and are connected to the first and second slide rods 16 and 17, respectively. The first and second anti-rotation sliders 19 and 20 are arranged between the first and second magnetic poles 24 and 25, respectively, and are connected to the first and second magnetic poles 24 and 25, respectively.

[0051] When the operator rotates the slide rod with a special tool to adjust the height of the support frame, the first and second anti-rotation sliders 19 and 20 move with the axial movement of the slide rod. After adjustment, due to the same polarity of the first and second magnetic poles 24 and 25 and the repulsive force generated, the third and fourth magnetic poles 26 and 27 have the same polarity and generate a repulsive force, which allows the slide rod to automatically reset to the initial position or be in a locked state after adjustment, simplifying the operation process and improving efficiency.

[0052] In some embodiments, as shown in Figure 2 The first and second anti-rotation sliders 19 and 20 are arranged along the axial direction of the adjustment sleeve 18 and are connected to the first and second slide rods 16 and 17, respectively. The first and second anti-rotation sliders 19 and 20 are arranged between the first and second magnetic poles 24 and 25, respectively, and are connected to the first and second magnetic poles 24 and 25, respectively.

[0053] The design of the first and second push rods 29 and allows the operator to apply force perpendicular to the direction of the slide rod, thereby pushing or pulling the first and second slide rods 16 and 17. This design provides an additional adjustment method, allowing the operator to choose the appropriate push-pull direction to adjust the height of the support frame according to actual needs. The vertical design of the push rod may help in situations where space is limited, improving the flexibility of operation.

[0054] In some embodiments, as shown in Figure 2 The outer periphery of the adjustment sleeve 18 is provided with a rotating disc 30, and the rotating handle 31 is arranged perpendicular to the rotating disc 30.

[0055] The design of the rotating handle 31 enables the operator to easily rotate the rotating disc 30 without the need for complex tools or operation steps, simplifying the adjustment process. Through the rotation of the rotating disc 30, the rotation of the slide rod can be controlled, and the rotation of the first lead screw 8 and the second lead screw 9 is adjusted, so as to realize the accurate adjustment of the height of the support frame.

[0056] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0057] In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0058] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0059] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0060] In this disclosure, the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" mean that a particular feature, structure, material, or characteristic is included in at least one embodiment or example of the present disclosure. The illustrative appearances of the above-mentioned terms in various places in the specification are not necessarily referred to the same embodiment or example. Moreover, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples. Furthermore, the terminology "comprising" is used in the disclosure as comprising but not limited to, that is, it is open-ended and does not exclude the presence of additional features, structures, materials, or characteristics.

[0061] Although the embodiments of the present disclosure have been shown and described above, it is understood that the above-described embodiments are exemplary, and are not to be interpreted as limiting the present disclosure, and the ordinary skilled in the art can make changes, modifications, replacements, and variations to the above-described embodiments within the scope of the present disclosure.

Claims

1. A concrete-steel pipe support frame device for roadway support, characterized in that, include: U-shaped pipe (1), the U-shaped pipe (1) includes a first straight pipe section (101), a bent pipe section (102) and a second straight pipe section (103) connected in sequence. The first straight pipe section (101) has a first sealing plate at its port and a first threaded hole at its first sealing plate. The second straight pipe section (103) has a second sealing plate at its port and a second threaded hole at its second sealing plate. A first sleeve (4) and a second sleeve (5), wherein the first sleeve (4) is slidably fitted onto the first straight pipe section (101) along the axial direction of the first straight pipe section (101), and the port of the first sleeve (4) is provided with a third sealing plate (6); the second sleeve (5) is slidably fitted onto the second straight pipe section (103) along the axial direction of the second straight pipe section (103), and the port of the second sleeve (5) is provided with a fourth sealing plate (7); The first lead screw (8) and the second lead screw (9) are provided in the first sleeve (4). One end of the first lead screw (8) is rotatably connected to the third sealing plate (6), and the other end of the first lead screw (8) is threadedly connected to the first threaded hole. The second lead screw (9) is provided in the second sleeve (5). One end of the second lead screw (9) is rotatably connected to the fourth sealing plate (7), and the other end of the second lead screw (9) is threadedly connected to the second threaded hole. A height adjustment component is connected to the first lead screw (8) and the second lead screw (9) respectively, and is used to drive the first lead screw (8) and the second lead screw (9) to rotate so as to adjust the height of the U-shaped tube (1).

2. The concrete-steel pipe support frame device for roadway support according to claim 1, characterized in that, The height adjustment assembly includes a first rotating rod (10), a first bevel gear (11), and a second bevel gear (12). The first rotating rod (10) is rotatably disposed on the wall of the first sleeve (4). The first end of the first rotating rod (10) is disposed inside the first sleeve (4), and the second end of the first rotating rod (10) is disposed outside the first sleeve (4). The first bevel gear (11) is disposed inside the first sleeve (4) and connected to the first rotating rod (10). The second bevel gear (12) is disposed on the first lead screw (8), and the first bevel gear (11) meshes with the second bevel gear (12).

3. The concrete-steel pipe support frame device for roadway support according to claim 2, characterized in that, The height adjustment assembly includes a second rotating rod (13), a third bevel gear (14), and a fourth bevel gear (15). The second rotating rod (13) is rotatably disposed on the wall of the second sleeve (5). The second end of the second rotating rod (13) is disposed inside the second sleeve (5) and the second end of the second rotating rod (13) is disposed outside the second sleeve (5). The third bevel gear (14) is disposed inside the second sleeve (5) and connected to the second rotating rod (13). The fourth bevel gear (15) is disposed on the second lead screw (9) and meshes with the third bevel gear (14).

4. The concrete-steel pipe support frame device for roadway support according to claim 3, characterized in that, The end face of the second end of the first rotating rod (10) is provided with a first cross groove, and the end face of the second end of the second rotating rod (13) is provided with a second cross groove (1301).

5. The concrete-steel pipe support frame device for roadway support according to claim 3, characterized in that, The height adjustment assembly includes a first slide rod (16), a second slide rod (17), and an adjustment sleeve (18). The first end of the first slide rod (16) passes through the first opening of the adjustment sleeve (18) and is slidably engaged with the adjustment sleeve (18) along the axial direction of the adjustment sleeve (18). The end face of the second end of the first slide rod (16) is provided with a first cross protrusion (1601), which engages with the first cross groove. The first end of the second slide rod (17) passes through the second opening of the adjustment sleeve (18) and is slidably engaged with the adjustment sleeve (18) along the axial direction of the adjustment sleeve (18). The end face of the second end of the second slide rod (17) is provided with a second cross protrusion (1701), which engages with the second cross groove (1301).

6. The concrete-steel pipe support frame device for roadway support according to claim 5, characterized in that, The height adjustment assembly includes a first anti-rotation slider (19) and a second anti-rotation slider (20). The first anti-rotation slider (19) and the second anti-rotation slider (20) are disposed inside the adjustment sleeve (18) and located between the first slide rod (16) and the second slide rod (17). The first anti-rotation slider (19) and the second anti-rotation slider (20) are both square. The first anti-rotation slider (19) is connected to the first slide rod (16), and the second anti-rotation slider (20) is connected to the second slide rod (17).

7. The concrete-steel pipe support frame device for roadway support according to claim 6, characterized in that, The height adjustment assembly includes a fixing block (21), which is disposed inside the adjustment sleeve (18) and located between the first anti-rotation slider (19) and the second anti-rotation slider (20). A first return spring (22) is provided between the first anti-rotation slider (19) and the fixing block (21), and a second return spring (23) is provided between the second anti-rotation slider (20) and the fixing block (21).

8. The concrete-steel pipe support frame device for roadway support according to claim 6, characterized in that, The height adjustment assembly includes a fixing block (21), which is disposed inside the adjustment sleeve (18) and between the first anti-rotation slider (19) and the second anti-rotation slider (20). A first magnetic pole (24) and a second magnetic pole (25) of the same polarity are arranged at intervals along the axial direction of the adjustment sleeve (18) between the first anti-rotation slider (19) and the fixing block (21). The first magnetic pole (24) is connected to the first anti-rotation slider (19), and the second magnetic pole (25) is connected to the fixing block (21). A third magnetic pole (26) and a fourth magnetic pole (27) of the same polarity are arranged at intervals along the axial direction of the adjustment sleeve (18) between the second anti-rotation slider (20) and the fixing block (21). The third magnetic pole (26) is connected to the second anti-rotation slider (20), and the fourth magnetic pole (27) is connected to the fixing block (21).

9. The concrete-steel pipe support frame device for roadway support according to claim 6, characterized in that, The first slide rod (16) is provided with a first push rod (29) perpendicular to the first slide rod (16), and the second slide rod (17) is provided with a second push rod perpendicular to the second slide rod (17).

10. The concrete-steel pipe support frame device for roadway support according to claim 6, characterized in that, The outer circumferential surface of the adjusting sleeve (18) is provided with a rotating disk (30), and a rotating handle (31) perpendicular to the rotating disk (30) is provided on the rotating disk (30).

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