Hole inspection device for open blasting hole

Abstract

The utility model discloses a hole inspection device for surface blasting blast holes, which comprises a disc, the outer wall of the disc is provided with six retraction ports, the six retraction ports are distributed at equal intervals, the inner wall of the disc is fixedly connected with a dustproof sleeve, and an adjusting mechanism is arranged in the disc; the adjusting mechanism comprises a mounting cylinder fixedly connected into the disc, six threaded rods are rotationally connected to the mounting cylinder in a penetrating mode, the six threaded rods are each sleeved with a moving plate in a threaded mode, and two adjusting plates are fixedly connected to one side of each moving plate. The utility model relates to the technical field of blasting holes. According to the hole inspection device for the open blasting hole, the size of the disc can be adjusted through the arranged adjusting mechanism, so that the disc can adapt to blasting holes of different specifications, the inner wall of the blasting hole can be conveniently detected, rock protrusions on the inner wall of the blasting hole are prevented, and the hole inspection effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of blasting blastholes, in particular to a hole testing device for open-air blasting blastholes. Background Art

[0002] Open-pit mine step deep hole blasting is an important production link in open-pit mining and the center of mine production organization. In the blasting construction process of open-pit deep hole step blasting, the first step is to inspect the quality and hole depth of the blastholes drilled by the rotary drill.

[0003] The authorization announcement number CN 213335870 U discloses a hole inspection device for deep-hole step blasting blastholes in open-pit mines, which belongs to the field of blasting construction. The hole inspection device for deep-hole step blasting blastholes in open-pit mines includes a disc, the diameter of which matches the diameter of the hole to be inspected; a truncated table is provided on the top surface of the disc, the axis of which coincides with the axis of the disc, and the truncated table and the disc are integrally formed to form an umbrella-shaped structure; a threaded rod is provided on the top of the truncated table, the axis of which coincides with the axis of the truncated table, the threaded rod passes through the truncated table and the disc, and the threaded rod is fixed to the truncated table and the disc respectively by an upper fixing nut and a lower fixing nut. In fact, the utility model discloses a hole inspection device for deep-hole step blasting blastholes in open-pit mines, which can simulate the state of the hole under the detonator and timely detect unqualified ones.

[0004] However, the hole inspection device has the following shortcomings: when in use, the device detects the hole depth and its internal conditions by placing a disc into the blasthole. However, due to the fixed size of the disc and the differences in specifications of some blastholes, the disc cannot be adapted for use. When the disc is placed in a larger blasthole, it cannot detect the inner wall condition of the blasthole, resulting in unsatisfactory hole inspection results and large deviations.

[0005] Therefore, the utility model provides a hole inspection device for open-air blasting blastholes to solve the above-mentioned problems. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a hole inspection device for open-air blasting blastholes, which solves the above-mentioned problems.

[0007] To achieve the above purpose, the utility model is implemented by the following technical solutions: a hole inspection device for open-air blasting blastholes, comprising a disc, the outer wall of the disc is provided with six retraction openings, the six retraction openings are equidistantly distributed, the inner wall of the disc is fixedly connected with a dust cover, and an adjustment mechanism is arranged inside the disc;

[0008] The adjustment mechanism includes a mounting cylinder fixedly connected in the disc, six threaded rods are rotatably connected to the mounting cylinder, and movable plates are threadedly sleeved on the six threaded rods. Two adjustment plates are fixedly connected to one side of the six movable plates, and one side of multiple adjustment plates slides and extends outside the disc, and the adjustment plates slide through the dust cover, and one side of each adjacent two adjustment plates is fixedly connected to the same overhanging plate, and the tops of the corresponding multiple adjustment plates are provided with scales.

[0009] Preferably, one end of each of the plurality of threaded rods is fixedly connected to a driven bevel gear, a closing cover is fixedly connected to the disc, a transmission shaft is rotatably connected and penetrated through the closing cover, the bottom end of the transmission shaft extends into the mounting tube, the bottom end of the transmission shaft is fixedly connected to a driving bevel gear, the driving bevel gear is meshed with a plurality of driven bevel gears, and the top end of the transmission shaft is fixedly connected to a handwheel, and the arrangement of the driven bevel gear, the closing cover, the transmission shaft, the driving bevel gear and the handwheel can be used together to facilitate operation by an operator, and can drive a plurality of outrigger plates to move synchronously, which is convenient for adjustment.

[0010] Preferably, three columns are fixedly connected to the top of the closing cover, the tops of the three columns are fixedly connected to the same fixing frame, a sliding sleeve is penetrated through the fixing frame, a connecting screw is slidably inserted and connected to the sliding sleeve, and a lifting ring is fixedly connected to the top of the connecting screw. The combination of the provided columns, fixing frame, sliding sleeve, connecting screw and lifting ring can be conveniently connected to an external lifting equipment, so that the disc can be conveniently lowered into the blasting hole.

[0011] Preferably, the threaded sleeve on the connecting screw is provided with a lower fastening nut, and the lower fastening nut is located below the fixing frame. The threaded sleeve on the connecting screw is provided with an upper fastening nut, and the upper fastening nut is located above the sliding sleeve. The lower fastening nut and the upper fastening nut are used in combination to conveniently fasten the connecting screw and the fixing frame together, and are also convenient for disassembly and assembly.

[0012] Preferably, the outer wall of the disc is fixedly connected with a plurality of fixed buffer pads, and the plurality of fixed buffer pads are all made of wear-resistant rubber material. One side of the plurality of extended plates is fixedly connected with a dynamic buffer pad, and the dynamic buffer pad is made of wear-resistant rubber material. The fixed buffer pads and the dynamic buffer pads are used in combination to conveniently provide anti-collision protection for the outer wall of the disc and the outer wall of the extended plate.

[0013] Preferably, a buffer ring is fixedly connected to the bottom of the disc, and the buffer ring is made of rubber material. The buffer ring can provide anti-collision protection for the bottom of the disc and can buffer and disperse the collision.

[0014] Preferably, the outer wall fixing sleeve of the disc is provided with an anti-collision sleeve, and the anti-collision sleeve is made of rubber material. The anti-collision sleeve can provide anti-collision protection for the bottom outer wall of the disc to prevent it from being damaged after collision during the lowering process. Beneficial Effects

[0015] The utility model provides a hole inspection device for open-air blasting blastholes. Compared with the prior art, it has the following beneficial effects:

[0016] (1) The hole inspection device for open-air blasting blastholes can adjust the size of the disc through the provided adjustment mechanism, so that it can adapt to blasting blastholes of different specifications, facilitate the detection of the inner wall of the blasthole, prevent the presence of rock protrusions on the inner wall of the blasthole, and improve the hole inspection effect.

[0017] (2) The hole testing device for open-air blasting holes can facilitate the fastening and installation of the connecting screw by setting a fixing frame, so that the disc can be conveniently connected to the external lifting equipment, and the disc can be conveniently lowered into the blasting hole to detect the hole depth, which is convenient for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the external structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the internal structure of the disc in the utility model;

[0020] Figure 3 It is a schematic diagram of the explosion installation structure of the utility model;

[0021] Figure 4 It is a schematic diagram of the explosion installation structure of the fixing frame and the connecting screw rod in the utility model.

[0022] In the figure: 1. disc; 2. retraction port; 3. dust cover; 4. mounting tube; 5. threaded rod; 6. movable plate; 7. adjustment plate; 8. overhanging plate; 9. scale; 10. driven bevel gear; 11. closing cover; 12. transmission shaft; 13. driving bevel gear; 14. hand wheel; 15. column; 16. fixing bracket; 17. sliding sleeve; 18. connecting screw; 19. lifting ring; 20. lower fastening nut; 21. upper fastening nut; 22. fixed buffer pad; 23. dynamic buffer pad; 24. buffer ring; 25. anti-collision sleeve. DETAILED DESCRIPTION

[0023] 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 in 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.

[0024] For example, see Figure 1 and Figure 2 A hole inspection device for open-air blasting blastholes comprises a disc 1, the outer wall of the disc 1 is provided with six retraction openings 2, the six retraction openings 2 are equidistantly distributed, the inner wall of the disc 1 is fixedly connected with a dust cover 3, and an adjustment mechanism is arranged inside the disc 1;

[0025] The adjustment mechanism includes a mounting tube 4 fixedly connected to the disc 1, six threaded rods 5 are rotatably connected to the mounting tube 4, and movable plates 6 are threadedly sleeved on the six threaded rods 5. Two adjustment plates 7 are fixedly connected to one side of the six movable plates 6. One side of the multiple adjustment plates 7 is slidably extended to the outside of the disc 1, and the adjustment plates 7 slide through the dust cover 3. One side of each adjacent two adjustment plates 7 is fixedly connected to the same overhanging plate 8, and the tops of the corresponding multiple adjustment plates 7 are provided with scales 9.

[0026] For example 2, please refer to Figures 1 to 4This embodiment provides a technical solution based on the first embodiment: one end of the plurality of threaded rods 5 is fixedly connected to a driven bevel gear 10, a closed cover 11 is fixedly connected to the disc 1, a transmission shaft 12 is rotatably connected to the closed cover 11, the bottom end of the transmission shaft 12 extends into the mounting tube 4, the bottom end of the transmission shaft 12 is fixedly connected to an active bevel gear 13, the active bevel gear 13 is meshed with the plurality of driven bevel gears 10, and a hand wheel 14 is fixedly connected to the top of the transmission shaft 12; three columns 15 are fixedly connected to the top of the closed cover 11, the tops of the three columns 15 are fixedly connected to the same fixed frame 16, a sliding sleeve 17 is penetrated and connected to the fixed frame 16, a connecting screw 18 is slidably inserted and connected to the sliding sleeve 17, and the connecting screw 18 is A lifting ring 19 is fixedly connected to the top, and the lifting ring 19 is used to connect an external cable; a lower fastening nut 20 is provided on the threaded sleeve of the connecting screw 18, and the lower fastening nut 20 is located below the fixing frame 16; an upper fastening nut 21 is provided on the threaded sleeve of the connecting screw 18, and the upper fastening nut 21 is located above the sliding sleeve 17; a plurality of fixed buffer pads 22 are fixedly connected to the outer wall of the disc 1, and the plurality of fixed buffer pads 22 are all made of wear-resistant rubber material, and a dynamic buffer pad 23 is fixedly connected to one side of the plurality of outrigger plates 8, and the dynamic buffer pad 23 is made of wear-resistant rubber material; a buffer ring 24 is fixedly connected to the bottom of the disc 1, and the buffer ring 24 is made of rubber material; an anti-collision sleeve 25 is provided on the fixed sleeve of the outer wall of the disc 1, and the anti-collision sleeve 25 is made of rubber material.

[0027] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0028] Working principle: When in use, the operator is connected to the external lifting equipment through the lifting ring 19, and then adjusts the extension length of the extension plate 8 according to the size of the blasting hole. It only needs to turn the hand wheel 14. The hand wheel 14 drives the active bevel gear 13 to rotate through the transmission shaft 12, and the active bevel gear 13 drives multiple driven bevel gears 10 meshing with it to rotate. The driven bevel gear 10 drives the connected threaded rod 5 to rotate, and the threaded rod 5 drives the movable plate 6 threadedly connected to it to move. The movable plate 6 pushes the extension plate 8 to move through the adjustment plate 7. At this time, multiple extension plates 8 move synchronously. The operator calculates the extension length according to the scale 9 above the adjustment plate 7 until it reaches the appropriate size. Then, the disc 1 is lowered into the hole to inspect and detect the smoothness of the inner wall of the hole and the hole depth.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0030] In the description of this article, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, or a connection through an intermediate medium, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hole inspection device for open-air blasting blastholes, comprising a disc (1), characterized in that: The outer wall of the disc (1) is provided with six retraction openings (2), the six retraction openings (2) are equidistantly distributed, the inner wall of the disc (1) is fixedly connected with a dust cover (3), and an adjustment mechanism is provided inside the disc (1); The adjustment mechanism comprises a mounting tube (4) fixedly connected to the disk (1), six threaded rods (5) rotatably penetrated and connected to the mounting tube (4), and movable plates (6) are threadedly sleeved on the six threaded rods (5), and two adjustment plates (7) are fixedly connected to one side of the six movable plates (6), one side of the plurality of adjustment plates (7) are slidably extended to the outside of the disk (1), and the adjustment plates (7) slide through the dust cover (3), one side of each adjacent two adjustment plates (7) are fixedly connected to the same extension plate (8), and the tops of the corresponding plurality of adjustment plates (7) are provided with scales (9).

2. The hole inspection device for open-air blasting blastholes according to claim 1 is characterized in that: One end of each of the plurality of threaded rods (5) is fixedly connected to a driven bevel gear (10); a closing cover (11) is fixedly connected to the disc (1); a transmission shaft (12) is rotatably connected and penetrates the closing cover (11); the bottom end of the transmission shaft (12) extends into the mounting tube (4); the bottom end of the transmission shaft (12) is fixedly connected to a driving bevel gear (13); the driving bevel gear (13) is meshed with the plurality of driven bevel gears (10); and the top end of the transmission shaft (12) is fixedly connected to a hand wheel (14).

3. The hole inspection device for open-air blasting blastholes according to claim 2, characterized in that: The top of the closure cover (11) is fixedly connected to three upright posts (15), the tops of the three upright posts (15) are fixedly connected to a same fixing frame (16), a sliding sleeve (17) is connected through the fixing frame (16), a connecting screw (18) is slidably connected to the sliding sleeve (17), and a lifting ring (19) is fixedly connected to the top of the connecting screw (18).

4. The hole inspection device for open-air blasting blastholes according to claim 3 is characterized in that: The threaded sleeve on the connecting screw (18) is provided with a lower fastening nut (20), and the lower fastening nut (20) is located below the fixing frame (16). The threaded sleeve on the connecting screw (18) is provided with an upper fastening nut (21), and the upper fastening nut (21) is located above the sliding sleeve (17).

5. The hole inspection device for open-air blasting blastholes according to claim 1 is characterized in that: A plurality of fixed buffer pads (22) are fixedly connected to the outer wall of the disk (1), and the plurality of fixed buffer pads (22) are all made of wear-resistant rubber material. A plurality of movable buffer pads (23) are fixedly connected to one side of the plurality of extended plates (8), and the movable buffer pads (23) are made of wear-resistant rubber material.

6. The hole inspection device for open-air blasting blastholes according to claim 1, characterized in that: A buffer ring (24) is fixedly connected to the bottom of the disc (1), and the buffer ring (24) is made of rubber material.

7. The hole inspection device for open-air blasting blastholes according to claim 1, characterized in that: The outer wall fixing sleeve of the disc (1) is provided with an anti-collision sleeve (25), and the anti-collision sleeve (25) is made of rubber material.

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