A foldable and retractable temporary support structure for antimony mine tunnels

Abstract

This utility model relates to the field of temporary support technology for antimony mine roadways, and particularly to a foldable and retractable temporary support structure for antimony mine roadways, comprising: a support unit including a support base plate and support brackets fixedly connected to both sides of the top of the support base plate; and a support unit including a first support top plate and a second support top plate slidably connected to the surface of the first support top plate. The first support top plate and the support brackets are movably connected by a pin. The first and second support top plates together constitute the main body of the support unit, directly bearing the pressure of the roadway top. Through the sliding connection, the second support top plate can be unfolded when needed to expand the support area and improve the support effect, and folded away when not needed to reduce space occupation. A geared motor provides power for the rotation of the threaded rod, and the rotation of the threaded rod drives the threaded sleeve to move along its axial direction, thereby realizing the unfolding and folding operation of the second support top plate.

Description

Technical Field

[0001] This utility model relates to the field of temporary support technology for antimony mine roadways, and in particular to a foldable and retractable temporary support structure for antimony mine roadways. Background Technology

[0002] During the mining process of antimony mines, the stability of the tunnels is threatened by factors such as complex geological conditions and changes in surrounding rock stress. Temporary support plays a crucial role as an important measure to ensure the safety and stability of the tunnels during construction. It can provide timely support to the surrounding rock after tunnel excavation, preventing accidents such as collapse and spalling caused by stress release, and ensuring the safety of construction personnel and the normal operation of equipment.

[0003] Temporary support for antimony mine roadways includes wooden supports, metal supports, and anchor bolt supports. Among these, metal supports are commonly used because they have high strength, can be reused, and provide good support. They are suitable for roadways with high surrounding rock pressure and significant deformation. In antimony mine transport roadways and return air roadways, when the surrounding rock stability is poor, metal supports are often used for temporary support.

[0004] However, due to the limited space in antimony mine tunnels, construction workers cannot quickly adjust the supports according to the actual conditions of the tunnels, thus increasing the adjustment time and labor intensity. Utility Model Content

[0005] The main objective of this invention is to provide a foldable and retractable temporary support structure for antimony mine tunnels, aiming to solve the technical problems in the prior art.

[0006] This utility model proposes a foldable and retractable temporary support structure for antimony mine tunnels, comprising:

[0007] The support unit includes a support base plate and support brackets fixedly connected to both sides of the top of the support base plate;

[0008] The support unit includes a first support top plate and a second support top plate that is slidably connected to the surface of the first support top plate. The first support top plate and the support bracket are movably connected by a pin.

[0009] The support unit also includes a reduction motor disposed on one side of the first support top plate, a threaded rod disposed in the inner cavity of the first support top plate, a threaded sleeve disposed on the surface of the threaded rod, and a limiting slide rod fixedly connected to both sides of the threaded sleeve.

[0010] Preferably, connecting blocks are fixedly connected to both sides of the bottom of the first support top plate and both sides of the top of the support base plate, and a first hydraulic cylinder is movably connected between the two connecting blocks via a pin.

[0011] Preferably, a second hydraulic cylinder is fixedly connected to both sides of the top of the support base plate, and a rubber gasket is fixedly connected to the output end of the second hydraulic cylinder.

[0012] Preferably, both sides of the first support top plate are provided with limiting slides for the sliding of the limiting slide rod, and the limiting slide rod extends into the inner cavity of the limiting slide.

[0013] Preferably, positioning grooves are provided on both sides of the bottom of the second support top plate, and the positioning grooves fit into the rubber gasket.

[0014] Preferably, the output shaft of the geared motor passes through the first support top plate and is connected to the threaded rod for transmission. A mounting plate is fixedly connected to one side of the first support top plate for fixing the geared motor.

[0015] Preferably, the support bracket and the second hydraulic cylinder are symmetrically distributed on the top of the support base plate and are fastened to the top of the support base plate by bolts.

[0016] Preferably, the support unit further includes an arch support for arch support and bolted connectors for fixing the arch support.

[0017] The beneficial effects of this utility model are as follows: The supporting base plate serves as the bottom foundation of the entire temporary support structure, providing support and connection foundation for the support unit. The first and second support top plates together constitute the main body of the support unit, directly bearing the pressure of the roadway top. The two are slidably connected, which can realize the folding and storage function of the support structure. Through the sliding connection, the second support top plate can be unfolded when needed to expand the support area and improve the support effect, and folded and stored when not needed to reduce the space occupied. The geared motor provides power for the rotation of the threaded rod. The rotation of the threaded rod drives the threaded sleeve to move along its axial direction. The limiting slide rod is used to limit the rotation of the threaded sleeve, so that it can only move in a straight line, thereby realizing the unfolding and folding operation of the second support top plate, improving the operation efficiency and convenience. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the front view of this utility model.

[0019] Figure 2 This is a schematic diagram of the extended state of the support unit of this utility model.

[0020] Figure 3 This is a cross-sectional view of the top plate of the first support unit in the flipped state of this utility model.

[0021] Figure 4 This is a schematic diagram of the arched support structure of this utility model.

[0022] In the picture:

[0023] 100. Support unit; 101. Support base plate; 102. Support bracket; 103. Connecting block; 104. First hydraulic cylinder; 105. Second hydraulic cylinder; 106. Rubber gasket; 200. Support unit; 201. First support top plate; 2011. Gear motor; 2012. Threaded rod; 2013. Threaded sleeve; 2014. Limiting slide; 2015. Limiting slide rod; 202. Second support top plate; 2021. Positioning groove; 203. Arch support; 204. Bolt connector.

[0024] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0025] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0026] Example 1

[0027] like Figures 1-4 As shown, this application provides a method for a foldable and retractable temporary support structure for antimony mine roadways, comprising:

[0028] The support unit 100 includes a support base plate 101 and support brackets 102 fixedly connected to the top two sides of the support base plate 101.

[0029] The support unit 200 includes a first support top plate 201 and a second support top plate 202 that is slidably connected to the surface of the first support top plate 201. The first support top plate 201 and the support bracket 102 are movably connected by a pin.

[0030] The support unit 200 also includes a reduction motor 2011 disposed on one side of the first support top plate 201, a threaded rod 2012 disposed in the inner cavity of the first support top plate 201, a threaded sleeve 2013 disposed on the surface of the threaded rod 2012, and a limiting slide rod 2015 fixedly connected to both sides of the threaded sleeve 2013.

[0031] like Figures 1-4As shown, the support base plate 101 serves as the bottom foundation of the entire temporary support structure, providing a stable installation platform for other components and ensuring the stability of the entire support structure. The support bracket 102 and the support base plate 101 together form the main frame of the support unit 100, providing support and connection foundation for the support unit 200, enhancing the overall strength and stability of the support unit 100. The first support top plate 201 and the second support top plate 202 together form the main body of the support unit 200, directly bearing the pressure from the top of the roadway. The two are slidably connected, enabling the folding and storage function of the support structure. Through the slidable connection, the second support top plate 202 can be folded and stored as needed. When needed, it can be unfolded to expand the support area and improve the support effect; when not needed, it can be folded and stored to reduce space occupation. The geared motor 2011 provides power for the rotation of the threaded rod 2012. The other end of the threaded rod 2012 is movably connected to the inner wall of the first support top plate 201 through a bearing. The rotation of the threaded rod 2012 drives the threaded sleeve 2013 to move along its axial direction. The limiting slide rod 2015 is used to limit the rotation of the threaded sleeve 2013, so that it can only move in a straight line, thereby realizing the unfolding and folding operation of the second support top plate 202, improving the operation efficiency and convenience. At the same time, the limiting slide rod 2015 ensures the stability and accuracy of the operation.

[0032] Example 2

[0033] like Figure 1 , Figure 3 As shown, connecting blocks 103 are fixedly connected to both sides of the bottom of the first support top plate 201 and both sides of the top of the support base plate 101. A first hydraulic cylinder 104 is movably connected between the two connecting blocks 103 through a pin.

[0034] The first support plate 201 has a limiting slide 2014 on both sides for the sliding of the limiting slide rod 2015, and the limiting slide rod 2015 extends into the inner cavity of the limiting slide 2014.

[0035] The output shaft of the geared motor 2011 passes through the first support top plate 201 and is connected to the threaded rod 2012. A mounting plate is fixedly connected to one side of the first support top plate 201 for fixing the geared motor 2011.

[0036] like Figure 1 , Figure 3As shown, the connecting block 103 is used to connect the first hydraulic cylinder 104 with the first support top plate 201 and the support bottom plate 101. The first hydraulic cylinder 104 is used to adjust the angle and relative position between the support unit 200 and the support unit 100. The limiting slide 2014 provides a sliding track for the limiting slide rod 2015, limiting the sliding direction and range of the limiting slide rod 2015, ensuring the linear movement of the threaded sleeve 2013 on the threaded rod 2012, thereby ensuring the stability and accuracy of the unfolding and folding of the second support top plate 202. The mounting plate is threadedly fixed to the base of the reduction motor 2011 with bolts, providing a stable mounting platform for the reduction motor 2011, ensuring the stability and reliability of the reduction motor 2011 during operation, preventing the reduction motor 2011 from shaking or displacing during operation, thereby ensuring the smooth unfolding and folding operation of the second support top plate 202.

[0037] Example 3

[0038] like Figure 1 , Figure 3 and Figure 4 As shown, a second hydraulic cylinder 105 is fixedly connected to both sides of the top of the support base plate 101, and a rubber gasket 106 is fixedly connected to the output end of the second hydraulic cylinder 105.

[0039] The second support plate 202 has positioning grooves 2021 on both sides of its bottom, and the positioning grooves 2021 fit into the rubber pads 106.

[0040] The support bracket 102 and the second hydraulic cylinder 105 are symmetrically distributed on the top of the support base plate 101 and are fastened to the top of the support base plate 101 by bolts.

[0041] The support unit 200 also includes an arch support 203 for arch support and a bolted connector 204 for fixing the arch support 203.

[0042] like Figure 1 , Figure 3 and Figure 4 The second hydraulic cylinder 105 shown is used to further stabilize the second support top plate 202. When the second support top plate 202 is fully extended, the second hydraulic cylinder 105 extends to stabilize it. The rubber pad 106 is used to buffer the second support top plate 202 after it is stored and the first support top plate 201 is folded. When the second support top plate 202 is extended, the positioning groove 2021 fits with the rubber pad 106 to provide positioning and fixing for the second support top plate 202, preventing it from sliding or shaking in the extended state.

[0043] The arch support 203 can be threadedly fixed to the top of the second support top plate 202 by bolt connector 204 when needed, to support the arch of the roadway, thereby achieving the effect of supporting the arch of the roadway.

[0044] The technical principle of this utility model is as follows: the output end of the first hydraulic cylinder 104 extends and retracts, driving the support unit 200 to adjust the support angle; the output shaft of the reduction motor 2011 drives the threaded rod 2012 to rotate; the threaded sleeve 2013 drives the limiting slide rod 2015 to move; the limiting slide rod 2015 drives the second support top plate 202 to extend outward of the first support top plate 201; the first support top plate 201 and the second support top plate 202 jointly bear the pressure of the roadway top; the two are slidably connected, which can realize the folding and storage function of the support structure. Through the sliding connection, the second support top plate 202 can be unfolded when needed to expand the support area. To improve the support effect, the second hydraulic cylinder 105 can be folded and stored when not in use to reduce space occupation. When the support unit 200 is horizontal with the support base plate 101, the second support top plate 202 extends completely, and the output end of the second hydraulic cylinder 105 extends upward until the rubber pad 106 extends into the inner cavity of the positioning groove 2021. Thus, the second hydraulic cylinder 105 provides further stable support for the second support top plate 202. When arch support is required, the arch support 203 can be threaded to the top of the second support top plate 202 through the bolt connector 204 to support the arch of the roadway, thereby achieving the effect of supporting the arch of the roadway.

[0045] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, apparatus, article, or method that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, apparatus, article, or method. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, apparatus, article, or method that includes that element.

[0046] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the content of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A foldable and retractable temporary support structure for antimony mine tunnels, characterized in that, include: The support unit (100) includes a support base plate (101) and support brackets (102) fixedly connected to the top two sides of the support base plate (101). The support unit (200) includes a first support top plate (201) and a second support top plate (202) slidably connected to the surface of the first support top plate (201). The first support top plate (201) and the support bracket (102) are movably connected by a pin. The support unit (200) also includes a reduction motor (2011) disposed on one side of the first support top plate (201), a threaded rod (2012) disposed in the inner cavity of the first support top plate (201), a threaded sleeve (2013) disposed on the surface of the threaded rod (2012), and a limiting slide rod (2015) fixedly connected to both sides of the threaded sleeve (2013).

2. The collapsible and stowable temporary support structure for antimony mine roadway according to claim 1, characterized in that, The bottom sides of the first support top plate (201) and the top sides of the support base plate (101) are fixedly connected to each other by connecting blocks (103), and the two connecting blocks (103) are movably connected by a first hydraulic cylinder (104) through a pin.

3. The collapsible and stowable temporary support structure for antimony mine roadway according to claim 1, characterized in that, The support base plate (101) has two fixed connections on the top sides of the second hydraulic cylinder (105), and the output end of the second hydraulic cylinder (105) is fixedly connected to a rubber gasket (106).

4. The collapsible and stowable temporary support structure for antimony mine roadways according to claim 1, characterized in that, The first support top plate (201) has a limiting slide (2014) on both sides for the sliding of the limiting slide rod (2015), and the limiting slide rod (2015) extends into the inner cavity of the limiting slide (2014).

5. The collapsible and stowable temporary support structure for antimony mine roadways according to claim 3, characterized in that, The second support top plate (202) has positioning grooves (2021) on both sides of its bottom, and the positioning grooves (2021) fit into the rubber pad (106).

6. The collapsible and stowable temporary antimony mine roadway support structure according to claim 5, wherein, The output shaft of the geared motor (2011) passes through the first support top plate (201) and is connected to the threaded rod (2012) for transmission. A mounting plate is fixedly connected to one side of the first support top plate (201) for fixing the geared motor (2011).

7. The collapsible and stowable temporary antimony mine roadway support structure according to claim 6, wherein, The support bracket (102) and the second hydraulic cylinder (105) are symmetrically distributed on the top of the support base plate (101) and are fastened to the top of the support base plate (101) by bolts.

8. The collapsible and stowable temporary antimony mine roadway support structure according to claim 1, wherein, The support unit (200) also includes an arch support (203) for arch support, and bolted connectors (204) for fixing the arch support (203).

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