Prefabricated supporting frame for mine hole

Abstract

The utility model discloses a mine prefabricated supporting frame which comprises two vertical frames and an arc frame located between the two vertical frames, buffering pieces provided with tension springs are movably installed at the ends of the vertical frames, a plurality of locking blocks are fixedly installed on the buffering pieces, the locking blocks are connected with locking grooves formed in the inner side wall of the arc frame in an inserted mode, and the mine prefabricated supporting frame further comprises a hoop rod piece rotationally arranged on the buffering pieces. The hoop rod piece is provided with a square rod which abuts against the outer side wall of the arc frame in a matched mode. According to the prefabricated supporting frame for the mine, downward pressure is applied to the buffering piece when the outer side wall of the arc-shaped frame is matched with the pit of the top of the mine to promote the tension spring to deform, so that the insertion installation position has a self-adaptive effect, bolts and nuts do not need to be installed after on-site butt joint, the on-site assembly time is shortened, and the production efficiency is improved. And meanwhile, the downward pressure can provide a stable abutting effect for the hoop rod piece, so that the support has better stability and safety.

Description

Technical Field

[0001] This utility model relates to the technical field of mine support components, specifically to a prefabricated support frame for mines. Background Technology

[0002] When mining mineral resources, it is necessary to support the mine shaft to ensure safety during the mining process. The support mainly uses arched assembled steel frames to support the inner wall of the mine shaft.

[0003] According to the publication (announcement) number: CN112228125B, the publication (announcement) date: 2022-07-19, a support for mine concrete support engineering and its support method are disclosed, including an arc-shaped first support plate and a second support plate combined with each other.

[0004] In existing technologies, including the aforementioned patents, traditionally, after assembling arc-shaped plates, multiple sets of bolts and nuts are used for fixing. However, when some mine walls are loose or have fallen rock, and the mine has just been opened and the support has not yet been installed, the mine walls covered with steel cages are prone to large areas of uneven depressions. When installing the support, the position of the arc frame needs to be repeatedly adjusted to fit the mine walls, and the installation position of the bolts will also change accordingly. It takes time to align the installation holes, increasing the workload of on-site construction and assembly, and also increasing the possibility of construction safety hazards. Utility Model Content

[0005] The purpose of this invention is to provide a prefabricated support frame for mine shafts, aiming to solve the problems mentioned above.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A prefabricated support frame for mine tunnels includes two upright frames and an arc frame located between them. The ends of the upright frames are movably equipped with buffer members fitted with tension springs. Multiple locking blocks are fixedly installed on the buffer members so that the locking blocks can be inserted into locking slots opened on the inner side wall of the arc frame.

[0008] It also includes a clamping rod that rotates on the buffer member, and the clamping rod is provided with a square rod that abuts against the outer wall of the arc frame.

[0009] Preferably, the arc frame is provided with a limiting groove that fits into the square rod.

[0010] Preferably, a drive block that slides with the upright is fixedly installed on the buffer component.

[0011] Preferably, it also includes a crossbeam that connects and cooperates with multiple arc frames, and the crossbeam is slidably provided with a connecting rod that connects and cooperates with the upright frame.

[0012] Preferably, the connecting rod slides in a sliding sleeve fixedly installed on the crossbeam.

[0013] Preferably, the connecting rod is provided with an inclined section that engages with the driving block.

[0014] Preferably, symmetrically arranged push blocks are fixedly installed on the clamp rod, and a spring that is deformed in the default state is provided between the end of the push block and the notch opened on the drive block.

[0015] Preferably, the arc frame push-holding rod moves along the axial direction of the push block, causing the two springs to compress and reset respectively.

[0016] Preferably, the connecting rod has a notch that engages with the push block.

[0017] Preferably, a rubber block is fixedly installed in the sliding sleeve.

[0018] In the above technical solution, the prefabricated support frame for mine tunnels provided by this utility model has the following beneficial effects: when the outer wall of the arc frame adapts to the concavity of the mine tunnel roof, it applies downward pressure to the buffer component, causing the tension spring to deform, so that the plug-in installation position can have an adaptive effect, eliminating the need for on-site connection and installation of bolts and nuts, shortening the on-site assembly time. At the same time, the downward pressure can also provide a stable backing effect for the clamp rod, making the support have better stability and safety. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1 A schematic diagram of the assembly of the upright frame, arc frame, and crossbeam provided for an embodiment of this utility model;

[0021] Figure 2 A front sectional view of the assembly of the upright frame, arc frame, and buffer component provided in an embodiment of this utility model;

[0022] Figure 3 Exploded view of the upright frame, arc frame, buffer component, and clamping rod provided for embodiments of this utility model;

[0023] Figure 4 This is a schematic diagram of the assembly of the clamp rod and connecting rod provided in the embodiment of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Upright frame; 2. Arc frame; 21. Locking groove; 22. Limiting groove; 3. Crossbeam; 31. Sliding sleeve; 4. Buffer component; 41. Locking block; 42. Driving block; 5. Hoop rod; 51. Square rod; 52. Push block; 6. Connecting rod; 61. Notch; 62. Inclined section. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0027] like Figure 1-4 As shown, a prefabricated support frame for mine tunnels includes two upright frames 1 and an arc frame 2 located between them. A buffer member 4 equipped with a tension spring is movably installed at the end of the upright frame 1. Multiple locking blocks 41 are fixedly installed on the buffer member 4 so that the locking blocks 41 are inserted into the locking groove 21 opened on the inner side wall of the arc frame 2.

[0028] It also includes a clamp rod 5 that rotates on the buffer 4, and the clamp rod 5 is provided with a square rod 51 that abuts against the outer wall of the arc frame 2.

[0029] Specifically, the arc frame 2 is adapted to the top of the hole and is assembled on the upper end of the two vertically installed uprights 1. The plate of the frame is existing technology and will not be described in detail here. The buffer 4 slides in the groove opened at the upper end of the upright 1, and a tension spring is fixedly installed between the buffer 4 and the inner wall of the groove.

[0030] Furthermore, the cross-section of the locking block 41 is shaped like a round hammer, and the center of the cross-section of the locking groove 21 is located inside the arc frame 2, so that the locking block 41 inserted into the locking groove 21 will not be pulled out.

[0031] Furthermore, the clamp rod 5 is in the shape of a snapped-down C, and the square rod 51 not used for fixing can be freely placed on the outer wall of the upright 1 without interfering with the insertion of the arc frame 2.

[0032] By sliding the arc frame 2 onto the locking block 41, and then flipping the clamp rod 5 upwards to make the square rod 51 provide a supporting function, and the side rod of the clamp rod 5 restricts the insertion and installation direction of the arc frame 2, the arc frame 2 and the upright frame 1 can be quickly assembled. Finally, the upright frame 1 is installed on the mine floor, and when the outer wall of the arc frame 2 adapts to the concavity of the mine roof, downward pressure is applied to the buffer 4 to cause the tension spring to deform, so that the insertion and installation position can have an adaptive effect. There is no need to install bolts and nuts after on-site docking, which shortens the on-site assembly time. At the same time, the downward pressure can also provide a stable supporting effect for the clamp rod 5, making the support more stable and safe.

[0033] As a further embodiment of this utility model, the arc frame 2 is provided with a limiting groove 22 that fits into the square rod 51.

[0034] Specifically, the inner wall of the limiting groove 22 has a right angle, and a rubber pad is fixedly installed on the buffer 4, so that the rubber pad slides against the inner wall of the groove at the upper end of the upright 1.

[0035] The square rod 51 is connected to the arc frame 2, and the lower end of the arc frame 2, which is limited, is equipped with a movable buffer 4, so that the lower end of the arc frame 2 can adapt to the downward pressure generated by the local collapse of the mine roof, reduce the damage to the plates of the arc frame 2 itself, and ensure the integrity and safety of the support.

[0036] As another embodiment provided in this utility model, a drive block 42 that slides with the support frame 1 is fixedly installed on the buffer 4.

[0037] Specifically, the groove sidewall has an arc hole through which the drive block 42 slides, and the extension portion at the end of the drive block 42 moves outside the sidewall of the stand 1, and the extension portion has an inclined surface.

[0038] The symmetrical drive block 42 guides the sliding of the buffer 4, ensuring the stability of the buffer 4 during the adaptation process.

[0039] As another embodiment of this utility model, it also includes a crossbeam 3 that is connected and cooperates with a plurality of arc frames 2, and a connecting rod 6 that is slidably disposed on the crossbeam 3 and is connected and cooperates with the upright frame 1.

[0040] Specifically, the crossbeam 3 is located on the outside of multiple supports and is used to provide directional support for the mine wall. This is existing technology and will not be described in detail here. The connecting rod 6 is symmetrically arranged on both sides of the support.

[0041] Multiple connecting rods 6 are used to strengthen the connection between the support and the crossbeam 3, so that when the support is under stress, the force can be transmitted to multiple crossbeams 3 to distribute the force and avoid serious damage when a single support is under excessive stress.

[0042] As another embodiment provided in this utility model, the connecting rod 6 slides in the sliding sleeve 31 that is fixedly installed on the crossbeam 3.

[0043] Specifically, the connecting rod 6 moves stably within the sliding sleeve 31 without any deviation or detachment.

[0044] The sliding sleeve 31 provides a guide for the movement of the connecting rod 6, and can also effectively transmit force through the sliding sleeve 31, thus achieving a good connection effect and ensuring the overall safety of the support inside the mine.

[0045] As another embodiment of this utility model, the connecting rod 6 is provided with an inclined section 62 that abuts against the drive block 42.

[0046] Specifically, an inclined surface is also provided on the inclined section 62, and this inclined surface is in contact with the inclined surface on the drive block 42 in the default state.

[0047] As the buffer 4 moves downward, the drive block 42 pushes against the inclined section 62, and the connecting rod 6 slides longitudinally in the sliding sleeve 31, thereby increasing the horizontal connection area of ​​the connecting rod 6 and expanding the connection effect.

[0048] As another embodiment of this utility model, a symmetrically arranged push block 52 is fixedly installed on the clamp rod 5, and a spring that is deformed in the default state is provided between the end of the push block 52 and the notch opened on the drive block 42.

[0049] Specifically, one end of the spring rotates in the circular notch on the drive block 42, and the moved push block 52 is always in the circular notch.

[0050] By ensuring that the push block 52 is always positioned on the drive block 42, the clamping rod 5 can stably perform its functions of securing, limiting, and horizontal movement.

[0051] As another embodiment provided in this utility model, the arc frame 2 pushes the clamp rod 5 to move along the axial direction of the push block 52, so that the two springs are compressed and reset respectively.

[0052] Specifically, by default, the two springs have the same degree of deformation, and a rubber ring that slides on the outer wall of the push block 52 is fixedly installed in the circular notch.

[0053] When the arc frame 2 is installed and shifts, the clamp rod 5 is squeezed by either side of the arc frame 2 and shifts, causing the two springs to deform. During the movement, the resistance on the clamp rod 5 gradually increases to counteract the shift of the arc frame 2 and prevent the position of the arc frame 2 from changing too much and affecting the support position.

[0054] As another embodiment of this utility model, the connecting rod 6 is provided with a notch 61 that engages with the push block 52.

[0055] Specifically, notch 61 is a notch formed at one end of connecting rod 6.

[0056] By pushing the recess 61 with the sliding push block 52, the connecting rod 6 is moved. Similarly, when the arc frame 2 is subjected to offset force, the connection area between the connecting rod 6 and the crossbeam 3 is expanded, and the stability is further improved.

[0057] As another embodiment of this utility model, a rubber block is fixedly installed in the sliding sleeve 31.

[0058] Specifically, the rubber block is installed at the port of the sliding sleeve 31, and the flat end of the connecting rod 6 is fixedly connected to the rubber block.

[0059] Pressing the rubber block with the end of the moving connecting rod 6 provides cushioning for the moving connecting rod 6, while the reaction force also facilitates the resetting of the connecting rod 6.

[0060] Working principle: By sliding the arc frame 2 into the locking block 41, and then flipping the clamp rod 5 upward so that the square rod 51 can play a supporting role, and the side rod of the clamp rod 5 restricts the insertion and installation direction of the arc frame 2, realizing the rapid assembly of the arc frame 2 and the upright frame 1. Finally, the upright frame 1 is installed on the mine floor, and when the outer wall of the arc frame 2 adapts to the concavity of the mine roof, downward pressure is applied to the buffer 4, causing the tension spring to deform, so that the insertion and installation position can have an adaptive effect, eliminating the need for on-site connection and installation of bolts and nuts, thus shortening the on-site assembly time.

[0061] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A prefabricated support frame for a mine gallery, characterized in that Including two stands (1) and the arc frame (2) between them, the stand (1) end movable mounting with assembled buffer piece (4) of tension spring, the buffer piece (4) fixedly installed with multiple lock blocks (41), make lock block (41) and the lock slot (21) of arc frame (2) inside wall opening plug-in connection; It also includes a hoop rod (5) that rotates on the buffer piece (4), and a square rod (51) is provided on the hoop rod (5) to resist the cooperation of the outer side wall of the arc frame (2).

2. The prefabricated support frame for a mine according to claim 1, characterized in that The arc frame (2) is provided with a limiting slot (22) that matches the square rod (51).

3. The prefabricated support frame for a mine according to claim 1, characterized in that The buffer piece (4) is fixedly installed with a driving block (42) that slides with the stand (1).

4. A precast support frame for use in a mine according to claim 3, characterised in that, It also includes a cross beam (3) connected to multiple arc frames (2), and a connecting rod (6) is slidably provided on the cross beam (3) to connect and cooperate with the stand (1).

5. A precast support frame for use in a mine according to claim 4 wherein, The connecting rod (6) slides in the sliding sleeve (31) fixedly installed on the cross beam (3).

6. A precast support frame for use in a mine according to claim 4 wherein, The connecting rod (6) is provided with a slope section (62) that pushes and cooperates with the driving block (42).

7. The prefabricated support frame for mines according to claim 5, characterized in that, The hoop rod (5) is fixedly installed with symmetrically arranged push blocks (52), and the end of the push block (52) is provided with a spring in a default state that is deformed between the notch of the driving block (42).

8. A precast support frame for use in a mine according to claim 7, characterised in that, The arc frame (2) pushes the hoop rod (5) to move in the axial direction of the push block (52), so that the two springs are compressed and reset respectively.

9. The prefabricated support frame for mines according to claim 7, characterized in that, The connecting rod (6) is provided with a notch (61) that pushes and cooperates with the push block (52).

10. The prefabricated support frame for mines according to claim 7, characterized in that, The sliding sleeve (31) is fixedly installed with a rubber block.

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