Underground protective umbrella

Abstract

The utility model provides an underground protective umbrella. The underground protective umbrella comprises a two-way screw rod, a bottom column, a top column, a protective frame and a sliding ring, the protection frame is arranged on one side of the top column and rotationally connected with the top column, the lower end of the top column is connected with the bidirectional lead screw, the lower end of the bidirectional lead screw is connected with the bottom column, and the top column above the bidirectional lead screw is sleeved with a sliding ring. The protection frame with the adjustable angle is rotationally arranged on one side of the ejector rod, the angle of the protection frame is adjusted to the minimum when the underground protection umbrella is carried, the size of the protection frame is greatly reduced, and the passing performance in a roadway is good; the reinforcing rods and the supporting rods are arranged in the umbrella ribs of the protection frame, so that the bearing capacity of the umbrella ribs is improved; the protective frame is convenient to carry, disassemble, assemble and adjust, the protective frame can adapt to underground spaces of different structures by adjusting different angles, and the adaptive capacity and the protective capacity are high.

Description

Technical Field

[0001] The utility model belongs to the technical field of temporary protection devices for underground work, and specifically relates to an underground protection umbrella. Background Art

[0002] During underground mining, the top structure of the newly excavated tunnel is unstable, and gravel is prone to fall from the top of the tunnel, which may cause danger to workers working in the tunnel. In order to increase the stability and safety of the newly excavated tunnel, it is necessary to install an underground protective umbrella in the tunnel to provide support for the top of the tunnel and protection for the workers under the umbrella. The protective frames in the existing technology are often large in size and can easily get stuck in tunnels with narrow spaces and complex terrains. Moreover, most of them adopt an integrated structure and cannot be disassembled, so the application scenarios are relatively limited.

[0003] Patent CN218407527U discloses a mobile safety support suitable for non-coal underground mining, including a support column, a top frame and a fixed rod, and a mesh is laid on the top frame to receive the falling rocks on the top, thereby preventing the workers from being injured by the falling rocks. However, this solution cannot provide support for the top of the tunnel. Utility Model Content

[0004] In order to solve the technical problem that the underground protection umbrella is inconvenient to move underground, the utility model provides an underground protection umbrella.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A downhole protective umbrella comprises a bidirectional screw rod, a bottom column, a top column, a protective frame and a sliding ring.

[0007] The protection frame is arranged on one side of the top column, the protection frame is rotatably connected to the top column, the lower end of the top column is connected to a bidirectional screw rod, the lower end of the bidirectional screw rod is connected to the bottom column, and a sliding ring is sleeved on the top column above the bidirectional screw rod.

[0008] Two adjusting grooves are arranged on the top column in the same direction, and two clamping blocks are symmetrically arranged in the sliding ring, and the clamping blocks are clamped in the adjusting grooves.

[0009] A reinforcing rod is arranged inside the rib of the protection frame, one end of the supporting rod is rotatably connected to the lower part of the reinforcing rod, and the other end of the supporting rod is hinged to a connecting ring sleeved in the center of the sliding ring.

[0010] Furthermore, the umbrella ribs of the protection frame are rotatably arranged at the upper end of the top column, the umbrella ribs are semicircular frames, three reinforcing rods are arranged inside the umbrella ribs, two reinforcing rods are symmetrically arranged inside the umbrella ribs, and the other reinforcing rod is parallel to the diameter side of the semicircular frame.

[0011] Furthermore, the sliding ring is an I-shaped cylinder, a connecting ring is sleeved on the central depression of the sliding ring, and the connecting ring and the sliding ring are rotatably connected.

[0012] Furthermore, two hinge blocks are symmetrically arranged on the connecting ring, and the hinge block is hinged to one end of the supporting rod.

[0013] Furthermore, a collar is arranged at the other end of the support rod, and the collar is sleeved on a reinforcing rod parallel to the diameter side of the semicircular frame, and the collar is connected to the reinforcing rod only by rotation.

[0014] Furthermore, a lifting ring is arranged in the center of the bidirectional screw rod, and four cylindrical rods are arranged in a circular array outside the lifting ring.

[0015] Furthermore, a top plate is arranged at the upper end of the top column, and four stabilizing blocks are arranged in a circular array on the outer side of the lower end of the bottom column.

[0016] Furthermore, the adjustment groove consists of a vertical groove and a plurality of equidistantly arranged transverse grooves, wherein the vertical groove is arranged at one end of the transverse groove, and the vertical groove is perpendicular to the transverse groove.

[0017] Beneficial effects of the utility model:

[0018] (1) The utility model sets a bidirectional screw in the middle of the underground umbrella to adjust the height of the underground umbrella, thereby reducing the height of the underground umbrella when being carried and improving the height adjustment capability of the underground umbrella; sets an adjustable angle protection frame on one side of the top rod to adjust the angle of the protection frame to the minimum when carrying the underground umbrella, thereby greatly reducing the volume of the protection frame and improving the passing performance in the tunnel; sets reinforcing rods and supporting rods in the ribs of the protection frame to improve the bearing capacity of the ribs; the utility model is easy to carry and convenient to disassemble and adjust; the protection frame can adapt to underground spaces of different structures by adjusting different angles, and has strong adaptability and protection capability.

[0019] (2) The utility model realizes the adjustment of the angle of the protection frame by rotating one end of the support rod and the reinforcing rod through a sleeve, and hinges the other end of the support rod with the connecting ring, so that the support rod, the umbrella rib and the connecting ring can rotate. The connecting ring is sleeved on the sliding ring so that the connecting ring can slide in the vertical direction with the sliding ring, thereby reducing the volume of the protection frame in the horizontal direction and improving the passability of the underground protection umbrella tunnel.

[0020] (3) The utility model sets two adjustment grooves in the same direction on the top rod, and engages two symmetrically set blocks in the sliding ring in the two adjustment grooves. The sliding ring is rotated to rotate the blocks into the horizontal groove or the vertical groove of the adjustment groove, so that the sliding ring is fixed or slidably set on the top column, thereby achieving fixation after adjusting the angle of the protection frame. Different protection frame angles can adapt to underground top spaces of different structures, thereby providing stronger protection for underground personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 This is a schematic diagram of the structure of an underground protection umbrella of the utility model;

[0023] Figure 2 This is an exploded view of the utility model;

[0024] Figure 3 It is a structural schematic diagram of the top column in the utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the protection frame of the utility model;

[0026] Figure 5 It is a structural schematic diagram of the sliding ring of the utility model.

[0027] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0028] 1. Top column; 101. Adjustment slot; 102. Top plate; 2. Bidirectional screw rod; 201. Lifting ring; 3. Bottom column; 301. Stabilizing block; 4. Protective frame; 401. Wire mesh; 402. Umbrella rib; 403. Reinforcing rod; 404. Support rod; 405. Ring; 5. Sliding ring; 501. Connecting ring; 502. Articulated block; 503. Block. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figure 1 As shown, a downhole protective umbrella includes a top column 1, a protective frame 4, a bidirectional screw rod 2 and a bottom column 3.

[0031] The protection frame 4 is arranged on one side of the top column 1, and the protection frame 4 is rotatably connected to the top column 1. The lower end of the top column 1 is connected to the bidirectional screw rod 2, and the lower end of the bidirectional screw rod 2 is connected to the bottom column 3. A sliding ring 5 is sleeved on the top column 1 above the bidirectional screw rod 2.

[0032] See also Figure 2-Figure 3As shown, the ribs 402 of the protection frame 4 are rotatably set at the upper end of the top column 1, and a wire mesh 401 is set above the ribs 402. The ribs 402 are semicircular frames, and three reinforcing rods 403 are set inside the ribs 402. Two reinforcing rods 403 are symmetrically set inside the ribs 402, and the other reinforcing rod 403 is parallel to the diameter side of the semicircular frame.

[0033] An adjusting groove 101 is provided on the top column 1, and a sliding ring 5 is sleeved on the top column 1 where the adjusting groove 101 is provided. The sliding ring 5 is an "I"-shaped cylinder, and a connecting ring 501 is sleeved on the sliding ring 5. Two hinge blocks 502 are symmetrically provided on the connecting ring 501. The hinge block 502 is hinged to one end of a support rod 404, and a collar 405 is provided at the other end of the support rod 404. The collar 405 is sleeved on a reinforcing rod 403 parallel to the diameter side of the semicircular frame, so that the two support rods 404 are symmetrically arranged on the ribs 402, and the collar 405 is only connected to the reinforcing rod 403 in rotation.

[0034] A lifting ring 201 is arranged in the center of the bidirectional screw rod 2, and four cylindrical rods are arranged in a circumferential array outside the lifting ring 201 for manually controlling the rotation of the screw rod to lift the top rod and the bottom rod.

[0035] A top plate 102 is arranged at the upper end of the top column 1 to enhance the supporting performance of the underground protection umbrella on the top, and four stabilizing blocks 301 are arranged in a circular array on the outer side of the lower end of the bottom column 3 to enhance the stability of the underground protection umbrella.

[0036] See also Figure 4-5 As shown, two adjusting grooves 101 are arranged in the same direction on the top column 1, and the adjusting groove 101 consists of a vertical groove and a plurality of horizontal grooves arranged at equal intervals. The vertical groove is arranged at one end of the horizontal groove, and the vertical groove is perpendicular to the horizontal groove. Two clamping blocks 503 are symmetrically arranged in the sliding ring 5, and the clamping blocks 503 are engaged in the adjusting groove 101. The connecting ring 501 is sleeved in the center of the sliding ring 5, and the connecting ring 501 and the sliding ring 5 are rotatably connected.

[0037] Working principle:

[0038] The utility model rotatably connects the umbrella rib 402 to the top column 1, so that the umbrella rib 402 can rotate up and down around the top column 1 to adjust the inclination angle of the protection frame 4. The mechanical strength of the umbrella rib 402 is improved by setting three reinforcing rods 403, and two supporting rods 404 are symmetrically set on the reinforcing rod 403 parallel to the diameter side of the semicircular umbrella rib 402 to provide support for the umbrella rib 402. One end of the supporting rod 404 is rotatably connected to the reinforcing rod 403, and the other end is hinged to the connecting ring 501 of the sliding ring 5, so that the supporting rod 404 can form different angles with the protection frame 4; the connecting ring 501 and the sliding ring 5 can generate relative rotation, and the sliding ring 5 can be rotated along the center of the top column 1 while ensuring that the connecting ring 501 is stationary, and the block 503 in the sliding ring 5 is rotated from the horizontal groove of the adjustment groove 101 to the vertical groove. The sliding ring 5 can slide up and down along the top column 1 in the vertical direction at this time. After sliding to the specified position, the sliding groove is rotated again to rotate the block 503 from the vertical groove to the horizontal groove, so that the sliding ring 5 is stuck and cannot move in the vertical direction, thereby fixing and supporting the support rod 404. The connecting ring 501 connected to the bottom of the support rod 404 is arranged at different positions on the top column 1 to adjust the angle between the protection frame 4 and the top column 1. By setting the length of the adjustment groove 101, the protection frame 4 can be adjusted to tilt upward, tilt downward and be perpendicular to the top rod, thereby reducing the horizontal surface area of ​​the underground protection umbrella and facilitating carrying, adjustment and installation in narrow underground tunnels.

[0039] In the description of the specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0040] The above contents are merely examples and explanations of the structure of the utility model. The technicians in the technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the utility model.

Claims

1. A downhole protective umbrella, comprising a bidirectional screw rod (2) and a bottom column (3), characterized in that: It also includes a top column (1), a protection frame (4) and a sliding ring (5); The protection frame (4) is arranged on one side of the top column (1), the protection frame (4) is rotatably connected to the top column (1), the lower end of the top column (1) is connected to the bidirectional screw rod (2), the lower end of the bidirectional screw rod (2) is connected to the bottom column (3), and a sliding ring (5) is sleeved on the top column (1) above the bidirectional screw rod (2); Two adjusting grooves (101) are arranged in the same direction on the top column (1), and two clamping blocks (503) are symmetrically arranged in the sliding ring (5), and the clamping blocks (503) are clamped in the adjusting grooves (101); A reinforcing rod (403) is arranged inside the rib (402) of the protection frame (4), and one end of a supporting rod (404) is rotatably connected to the bottom of the reinforcing rod (403), and the other end of the supporting rod (404) is hingedly connected to a connecting ring (501) sleeved in the center of the sliding ring (5).

2. The underground protection umbrella according to claim 1, characterized in that: The ribs (402) of the protection frame (4) are rotatably arranged on the upper end of the top column (1), a wire mesh (401) is arranged above the ribs (402), the ribs (402) are semicircular frames, three reinforcing rods (403) are arranged inside the ribs (402), two reinforcing rods (403) are symmetrically arranged inside the ribs (402), and the other reinforcing rod (403) is parallel to the diameter side of the semicircular frame.

3. The underground protection umbrella according to claim 1, characterized in that: The sliding ring (5) is an I-shaped cylinder. A connecting ring (501) is sleeved on the central recess of the sliding ring (5). The connecting ring (501) and the sliding ring (5) are rotatably connected.

4. The underground protection umbrella according to claim 1, characterized in that: Two hinge blocks (502) are symmetrically arranged on the connection ring (501), and the hinge block (502) is hinged to one end of the support rod (404).

5. The underground protection umbrella according to claim 4, characterized in that: A collar (405) is arranged at the other end of the support rod (404), and the collar (405) is sleeved on a reinforcing rod (403) parallel to the diameter side of the semicircular frame, and the collar (405) is only connected to the reinforcing rod (403) in a rotational manner.

6. The underground protection umbrella according to claim 1, characterized in that: A lifting ring (201) is arranged in the center of the bidirectional screw rod (2), and four cylindrical rods are arranged in a circular array outside the lifting ring (201).

7. The underground protection umbrella according to claim 1, characterized in that: A top plate (102) is arranged at the upper end of the top column (1), and four stabilizing blocks (301) are arranged in a circular array on the outer side of the lower end of the bottom column (3).

8. The underground protection umbrella according to claim 1, characterized in that: The adjustment groove (101) consists of a vertical groove and a plurality of horizontal grooves arranged at equal intervals, wherein the vertical groove is arranged at one end of the horizontal groove and is perpendicular to the horizontal groove.

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