Adjustable portable mining temporary support

Abstract

The utility model provides an adjustable portable mining temporary support, and belongs to the technical field of supports. Comprising a screw rod and supporting rods in threaded connection with the two ends of the screw rod, a plurality of holding rods are fixed to the middle of the screw rod, a plurality of floor inserting plates are fixed to the ends of the two supporting rods, the supporting assembly comprises a fixing ring fixed to the outer wall of the supporting rod located on the lower portion, and a sliding ring is arranged below the fixing ring; and the sliding ring movably sleeves the outer wall of the supporting rod. Through the arrangement of the fixed ring, the sliding ring and the Z-shaped rod, in the using process, the Z-shaped rod and the floor inserting plate are in contact with the ground for supporting at the same time, the sliding ring is clamped on the surface of the floor inserting plate through the first positioning groove, a constructor can step on the Z-shaped rod to stabilize the supporting rod and prevent the supporting rod from inclining and rotating, the supporting rod does not need to be supported by multiple persons, and the operation process is simplified; the Z-shaped rods are synchronously supported on the ground, the bottom stress area of the supporting rods is enlarged, the supporting rods are prevented from sinking into the ground, and the supporting stability is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of support technology, and in particular to an adjustable portable temporary support for mining. Background Technology

[0002] Mining temporary supports are support devices primarily composed of mechanical structures such as screws. They are used in coal mining to temporarily support the roof of roadways or working faces, preventing rockfalls and ensuring operational safety. Their main structure includes a screw adjustment mechanism, support rods, insert plates, and a top beam. The screw adjustment mechanism restricts the rotation of the support rods, and by rotating the double-ended screw in the screw adjustment mechanism, the threaded support rods are moved closer to or further away from the double-ended screw, thus adjusting the support height to adapt to different roadway spaces. The insert plates, after being inserted into the ground, increase friction with the ground, preventing movement of the support rod bottom. The top beam fits snugly against the roof to distribute pressure. During use, the installation location and required support height are determined based on roadway conditions, and the corresponding model of temporary support is selected (the adjustment range of mining temporary supports using screw adjustment mechanisms is generally less than 50 cm). The support rods are placed on the ground via the insert plates, restricting their rotation, and the screw is rotated to raise the support rods. The top beam is fixed at the top of the roadway, forming a stable support. After operation, the screw is rotated in the opposite direction to lower the support rods, which are then removed for easy transfer to the next work area for reuse.

[0003] However, in practical applications, traditional temporary mining supports present some operational inconveniences, especially in the face of relatively low stress environments, where the complexity of operation and the personnel requirements of traditional supports are particularly wasteful. Specifically, when the support rods are in place, multiple workers need to hold the upper and lower support rods to prevent them from tilting or rotating, while another worker rotates the screw to lift the upper support rod and press it firmly against the top of the roadway. This process requires the cooperation of multiple people and is quite cumbersome. The ease of operation of the supports needs to be improved. Therefore, this application provides an adjustable and portable temporary mining support to meet the needs. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide an adjustable and portable temporary support for mining to address the issue of insufficient convenience of supports.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] An adjustable portable temporary support for mining includes a screw and support rods threaded to both ends of the screw. Several grips are fixed to the middle of the screw, and several insertion plates are fixed to the ends of both support rods. The support also includes:

[0007] The support assembly includes a fixed ring fixed to the outer wall of the lower support rod, a sliding ring disposed below the fixed ring, the sliding ring being movably sleeved on the outer wall of the support rod, and two symmetrically arranged Z-shaped rods fixed to the outer wall of the sliding ring. Before use, the lowest point of the Z-shaped rods is flush with the lowest point of the insert plate. After the insert plate is inserted into the ground, the top of the sliding ring is attached to the bottom of the fixed ring.

[0008] Preferably, the bottom of the sliding ring is provided with several positioning grooves. Before use, the sliding ring is engaged with the surface of the insert plate through the positioning grooves.

[0009] Preferably, the bottom of the fixing ring is provided with several positioning grooves, and the top of the fixing ring is fixed with several positioning blocks. After the insert plate is inserted into the ground, the positioning blocks are inserted into the positioning grooves.

[0010] Preferably, the opening of the second positioning groove is provided with a first guiding surface, and the top of the positioning block is provided with a second guiding surface.

[0011] Preferably, reinforcing ribs are fixed at the corners of the Z-shaped rods.

[0012] Preferably, a foot pedal is fixed horizontally on the surface of the Z-shaped rod, and the lower surface of the foot pedal is flush with the lowest point of the Z-shaped rod.

[0013] Preferably, the top of the pedal is provided with anti-slip stripes.

[0014] Preferably, the corner of the pedal is provided with an arc-shaped chamfer.

[0015] Preferably, the adjustable portable temporary mining support provided by this utility model can be selected in appropriate quantities and used as a whole according to the requirements of the support surface and stress. At the same time, the diameter of the support rods can also be adjusted as needed.

[0016] Compared with the prior art, this utility model has at least the following beneficial effects:

[0017] In the above solution, by setting a fixed ring, a sliding ring, and a Z-shaped rod, the Z-shaped rod and the insert plate simultaneously touch the ground for support during use. The sliding ring is locked onto the surface of the insert plate through a positioning groove. Construction workers can step on the Z-shaped rod to stabilize the support rod and prevent it from tilting or rotating. This eliminates the need for multiple people to support it, simplifying the operation process. When the insert plate is inserted into the ground, the Z-shaped rod simultaneously supports the ground, increasing the force-bearing area at the bottom of the support rod, preventing the support rod from sinking into the ground, and enhancing the stability of the support.

[0018] By incorporating a foot pedal, the contact area between the foot and the foot is increased, preventing slippage between the foot and the Z-shaped bar and improving stability during use. Secondly, the foot pedal further increases the contact area with the ground, preventing the support bar from sinking into the ground and further enhancing support stability.

[0019] By setting a positioning block and a second positioning groove, after the floorboard is inserted into the ground, the positioning block is inserted into the interior of the second positioning groove, which prevents the Z-shaped rod and the foot pedal from rotating during the support process, thus improving the stability during use. Attached Figure Description

[0020] The accompanying drawings, which form part of this specification, illustrate embodiments of the present disclosure and, together with the specification, further serve to explain the principles of the present disclosure and enable those skilled in the art to implement and use the present disclosure.

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0022] Figure 2 This is a cross-sectional view of the fixing ring of this utility model;

[0023] Figure 3 This is a three-dimensional structural diagram of the sliding ring of this utility model;

[0024] Figure 4 This is a three-dimensional structural diagram of the two positioning grooves of this utility model.

[0025] In the diagram: 1. Support rod; 2. Screw; 3. Handle; 4. Insert plate; 5. Support assembly; 6. Fixing ring; 7. Sliding ring; 8. Z-shaped rod; 9. Reinforcing rib; 10. Positioning groove one; 11. Positioning block; 12. Positioning groove two; 13. Foot pedal; 14. Anti-slip stripes.

[0026] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to the specific structure, device and environment. According to specific needs, those skilled in the art can adjust or modify these devices and environments, and such adjustments or modifications are still included in the scope of the appended claims. Detailed Implementation

[0027] The adjustable portable temporary support for mining provided by this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can also use other alternative methods to implement some known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this utility model.

[0028] like Figures 1-4As shown, an embodiment of this utility model provides an adjustable portable temporary support for mining, including a screw 2 and support rods 1 threadedly connected to both ends of the screw 2. Several gripping rods 3 are fixed to the middle of the screw 2, and several insert plates 4 are fixed to the ends of both support rods 1. The support rods also include:

[0029] The support assembly 5 includes a fixed ring 6 fixed to the outer wall of the lower support rod 1. A sliding ring 7 is provided below the fixed ring 6 and is movably sleeved on the outer wall of the support rod 1. Two symmetrically arranged Z-shaped rods 8 are fixed to the outer wall of the sliding ring 7. Before use, the lowest point of the Z-shaped rod 8 is flush with the lowest point of the insertion plate 4. After the insertion plate 4 is inserted into the ground, the top of the sliding ring is attached to the bottom of the fixed ring 6. By setting the fixed ring 6, the sliding ring 7, and the Z-shaped rods 8, the Z-shaped rods 8 are flush with the bottom of the insertion plate 4 before use, which can ensure that the bracket touches the ground synchronously when it is placed. The sliding ring 7 is snapped onto the insertion plate 4 through the positioning groove 10, which facilitates the quick positioning of the bracket. After the insertion plate 4 is inserted into the ground, the sliding ring 7 moves up to fit the fixed ring 6. Construction personnel can step on the Z-shaped rods 8 to stabilize the bracket, avoiding the need for multiple people to support it, simplifying the operation process, and at the same time increasing the bottom support area to prevent the support rod 1 from tilting, rotating, or sinking into the ground, thus enhancing the stability of the support.

[0030] like Figures 2-4 As shown in this embodiment, the bottom of the sliding ring 7 is provided with several positioning grooves 10. Before use, the sliding ring 7 is snapped onto the surface of the insert plate 4 through the positioning grooves 10. The snapping design between the positioning grooves 10 and the insert plate 4 can fix the position of the sliding ring 7 and the Z-shaped rod 8 before use, preventing them from sliding freely on the support rod 1. This ensures that the Z-shaped rod 8 and the insert plate 4 support the ground synchronously when the bracket is placed, improving installation efficiency and initial stability. At the same time, this structure makes it easy for construction personnel to quickly align the components and reduce adjustment time.

[0031] like Figures 2-4 As shown, in this embodiment, the bottom of the fixing ring 6 is provided with several positioning grooves 12, and the top of the fixing ring 6 is fixed with several positioning blocks 11. After the insert plate 4 is inserted into the ground, the positioning blocks 11 are inserted into the positioning grooves 12. The cooperation between the positioning blocks 11 and the positioning grooves 12 can restrict the rotation of the sliding ring 7 and the Z-shaped rod 8 after the insert plate 4 is inserted into the ground, so as to avoid the stability of the support being affected by the shaking of the Z-shaped rod 8 or the foot pedal 13. At the same time, this structure enhances the overall torsional resistance of the support through mechanical positioning, ensuring that each component remains relatively fixed during the support process, and improving the reliability of the support.

[0032] like Figures 2-4As shown in this embodiment, a guide surface is provided at the opening of the positioning groove 12, and a guide surface is provided on the top of the positioning block 11. The design of the guide surface 1 and the guide surface 2 can guide the positioning block 11 to be smoothly inserted into the positioning groove 12 when the insert plate 4 is inserted into the ground and the sliding ring 7 moves upward, reducing component collision and jamming, and reducing installation difficulty.

[0033] like Figure 2 and Figure 3 As shown in this embodiment, reinforcing ribs 9 are fixed at the corners of the Z-shaped rod 8. The reinforcing ribs 9 can enhance the structural strength of the Z-shaped rod 8 and effectively prevent the Z-shaped rod 8 from deforming or breaking when construction workers step on it or when the support is subjected to lateral force. At the same time, the reinforcing ribs 9 can disperse stress concentration points and improve the stability of the connection between the Z-shaped rod 8 and the sliding ring 7, ensuring that it continues to play an anti-slip and anti-tilting role during the support process.

[0034] like Figure 2 and Figure 3 As shown, in this embodiment, a foot pedal 13 is horizontally fixed to the surface of the Z-shaped rod 8. The lower surface of the foot pedal 13 is flush with the lowest point of the Z-shaped rod 8. The foot pedal 13 increases the contact area between the construction worker and the Z-shaped rod 8. The anti-slip stripes 14 prevent the foot from slipping, making it easier for the construction worker to maintain their own stability when adjusting the height of the support. At the same time, the foot pedal 13 increases the contact area between the support and the ground, further dispersing the pressure, preventing the support from sinking into the ground, and enhancing the overall support stability.

[0035] like Figure 2 and Figure 3 As shown in this embodiment, the top of the foot pedal 13 is provided with anti-slip stripes 14. The anti-slip stripes 14 increase the surface friction and effectively prevent the workers' feet from slipping during the stepping process. Especially in wet or muddy tunnel environments, it can significantly improve the safety of personnel operation. At the same time, the anti-slip design ensures that the workers can apply force stably when rotating the handle 3 to adjust the height of the support, avoiding operational errors or safety accidents caused by slipping.

[0036] like Figure 2 and Figure 3 As shown in this embodiment, the corner of the foot pedal 13 is provided with an arc-shaped chamfer. The arc-shaped chamfer design can eliminate the sharp edges of the foot pedal 13, prevent construction workers from being scratched during stepping or moving, and improve the safety of use. At the same time, the smooth edges and corners can reduce the collision damage between the foot pedal 13 and other components or tools, reduce the risk of component wear, and extend the service life of the bracket.

[0037] Working principle: Before use, ensure that the bottom of the Z-shaped rod 8 is flush with the lowest point of the insertion plate 4. The sliding ring 7 is engaged with the surface of the insertion plate 4 through the positioning groove 10, so that the Z-shaped rod 8, the sliding ring 7 and the insertion plate 4 remain relatively fixed.

[0038] Construction workers rotate screw 2 by gripping rod 3, causing support rod 1 to move along the thread direction of screw 2, adjusting the height of the support until the upper support rod 1 is pressed against the top of the tunnel. During this process, construction workers can directly step on the foot pedal 13 of Z-shaped rod 8. The anti-slip stripes 14 on the foot pedal 13 prevent the feet from slipping. Its large contact area not only stabilizes the worker's standing position but also further increases the contact area between the support and the ground, preventing the support from sinking into the ground. Z-shaped rod 8 and foot pedal 13 provide support together, and the reinforcing ribs 9 enhance the structural strength, effectively preventing the support rod 1 from tilting or rotating. After the upper support rod 1 contacts the top of the tunnel, screw 2 is rotated, which will continue to move the upper support rod 1 upward until the upper insert plate 4 is inserted into the upper top beam. At the same time, the lower support rod 1 moves downward, causing the lower insert plate 4 to be inserted into the ground, thus providing temporary support for the tunnel. When disassembling, screw 2 is rotated in the opposite direction to lower the height of support rod 1, and the insert plate 4 is pulled out of the ground, allowing the support to be moved to the next location for use.

[0039] During the process of inserting the floorboard 4 into the ground, the Z-shaped rod 8 and the pedal 13 remain stationary. The distance between the sliding ring 7 and the fixed ring 6 on the Z-shaped rod 8 decreases until the positioning block 11 on the sliding ring 7 is inserted into the positioning groove 12, preventing the Z-shaped rod 8 and the pedal 13 from rotating. At the same time, the pedal 13 increases its support area with the ground, preventing the support rod 1 from sinking into the ground.

[0040] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details have been described in detail in the above preferred embodiments; however, those skilled in the art can fully understand this utility model even without these detailed descriptions.

[0041] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An adjustable portable temporary support for mining, comprising a screw (2) and support rods (1) threadedly connected to both ends of the screw (2), wherein a plurality of grips (3) are fixed in the middle of the screw (2), and a plurality of insert plates (4) are fixed at the ends of the two support rods (1), characterized in that, Also includes: The support assembly (5) includes a fixed ring (6) fixed to the outer wall of the lower support rod (1). A sliding ring (7) is provided below the fixed ring (6). The sliding ring (7) is movably sleeved on the outer wall of the support rod (1). Two symmetrically arranged Z-shaped rods (8) are fixed to the outer wall of the sliding ring (7). Before use, the lowest end of the Z-shaped rod (8) is flush with the lowest point of the insertion plate (4). After the insertion plate (4) is inserted into the ground, the top of the sliding ring (7) is attached to the bottom of the fixed ring (6).

2. The adjustable portable temporary mining support according to claim 1, characterized in that, The bottom of the sliding ring (7) is provided with several positioning grooves (10). Before use, the sliding ring (7) is engaged with the surface of the insert plate (4) through the positioning grooves (10).

3. The adjustable portable temporary mining support according to claim 1, characterized in that, The bottom of the fixed ring (6) is provided with several positioning grooves (12), and the top of the fixed ring (6) is fixed with several positioning blocks (11). After the floor plate (4) is inserted into the ground, the positioning blocks (11) are inserted into the positioning grooves (12).

4. The adjustable portable temporary mining support according to claim 3, characterized in that, The opening of the positioning groove (12) is provided with a guide surface, and the top of the positioning block (11) is provided with a guide surface.

5. The adjustable portable temporary mining support according to claim 1, characterized in that, The corners of the Z-shaped rod (8) are all fixed with reinforcing ribs (9).

6. The adjustable portable temporary mining support according to claim 1, characterized in that, A foot pedal (13) is fixed horizontally on the surface of the Z-shaped rod (8), and the lower surface of the foot pedal (13) is flush with the lowest point of the Z-shaped rod (8).

7. The adjustable portable temporary mining support according to claim 6, characterized in that, The top of the foot pedal (13) is provided with anti-slip stripes (14).

8. The adjustable portable temporary mining support according to claim 6, characterized in that, The corner of the foot pedal (13) is provided with an arc-shaped chamfer.

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