Mining audible and visual alarm

Abstract

The application relates to a mining electric appliance, and discloses a mining audible and visual alarm, which comprises a shell and a cable, the shell is provided with a power connection hole, the cable passes through the power connection hole, the mining audible and visual alarm also comprises a positioning assembly, and the positioning assembly comprises a positioning sleeve and a positioning pipe which are sleeved outside the cable. The positioning sleeve comprises a wire clamping part, a sleeve part and a deformation part which can be deformed under stress; the sleeve part is inserted into the power connection hole, and the outer side face of the sleeve part is attached to the hole wall of the power connection hole. The wire clamping part is provided with a wire clamping hole for a cable to penetrate out, and the hole wall of the wire clamping hole is clamped and embedded into the surface of the cable. The positioning pipe comprises a fastening pipe inserted into the sleeve part, the sleeve part is clamped by the outer side of the fastening pipe and the hole wall of the power connection hole, cable installation in the mining audible and visual alarm is safer and more convenient, and the possibility of damage to the outer layer of the cable in the installation process is reduced.

Description

Technical Field

[0001] This application relates to underground safety facilities for mines, and particularly to an acoustic and optical alarm for mines. Background Art

[0002] The acoustic and optical alarm for mines is a device used in underground mines to prompt workers about the safety situation. It includes a housing and a sound - generating unit and a lighting unit located inside. The sound - generating unit and the lighting unit are also connected to an external cable.

[0003] To ensure the power supply safety of underground mine equipment, the power supply cable of the safety facilities is coated with a protective layer, steel armor, insulation layer, etc., and its general diameter is 1 - 2 cm. The cable connection is as shown in the appendix. Figure 1 As shown, on one side of the housing, there is an integrally formed wiring pipe orifice communicating inside and outside. The end of the cable passes through the wiring pipe orifice and is inserted into the housing, and the seal is achieved by fitting between the outer side of the cable and the wiring pipe orifice.

[0004] In the actual production and application process, it is difficult to balance the inner diameter of the wiring pipe orifice and the outer diameter of the cable. If the inner diameter of the wiring pipe orifice is too large, the sealing performance is poor, and gas and liquid may seep into the housing. If the inner diameter of the wiring pipe orifice is too small, the cable installation will be more difficult. Even if the two are equal, during the vibration caused by underground ore crushing and passing of mine cars in the mine, the cable still easily sways and there are still airtight gaps, resulting in the possibility of gas or liquid seeping into the acoustic and optical alarm, causing damage to the acoustic and optical alarm or posing a safety hazard. Utility Model Content

[0005] In order to provide safety and convenient installation for the cable installation effect of the acoustic and optical alarm for mines, an acoustic and optical alarm for mines is provided.

[0006] The above application purpose of this application is achieved through the following technical solutions:

[0007] An acoustic and optical alarm for mines includes a housing and a cable. There is a power connection hole on the housing, and the cable passes through the power connection hole. It further includes a positioning assembly. The positioning assembly includes a positioning sleeve and a positioning pipe both sleeved on the cable.

[0008] The positioning sleeve includes a wire - clamping part, a sleeve part, and a deformable part that can be deformed by force.

[0009] The sleeve part is inserted into the power connection hole, and the outer side of the sleeve part fits with the hole wall of the power connection hole.

[0010] The wire - clamping part is provided with a wire - clamping hole for the cable to pass through, and the hole wall of the wire - clamping hole tightly clamps and embeds the surface of the cable.

[0011] The positioning pipe includes a fastening pipe inserted into the sleeve part, and the outer side of the fastening pipe tightly clamps the sleeve part with the hole wall of the power connection hole.

[0012] By adopting the above technical solution, compared with not dealing with the gap between the cable and the power connection hole or laboriously passing the cable through the power supply hole in an interference fit state;

[0013] The cable installation method of the mine-used sound and light alarm in this application is as follows:

[0014] Put the positioning sleeve on the cable, slide the positioning sleeve to a position where the reserved end length of the cable is sufficient, and then press the wire clamping part to clamp and embed the wire clamping part into the cable;

[0015] Then place the positioning pipe in the housing, and pass the reserved end of the cable through the power connection hole and the positioning pipe;

[0016] Then insert the sleeve into the power connection hole, align the fastening pipe with the sleeve part, and push the sleeve part from the inside of the housing to the outside, so that the outer side of the sleeve part is squeezed and clamped by the wall of the power connection hole, thereby realizing the installation of the cable. The deformation part provides a margin for the cable to deform when shaken, ensuring the seal between the positioning component and the cable and the seal between the positioning component and the housing;

[0017] Therefore, the cable installation in the mine-used sound and light alarm of this application is safer and more convenient, reducing the possibility of damaging the outer layer of the cable during the installation process.

[0018] Optionally: The positioning pipe includes a limiting block located inside the housing, and the limiting block abuts against the inner side wall of the housing.

[0019] By adopting the above technical solution, it is prevented that the fastening pipe is pushed deep into the sleeve part during installation and the sleeve part is pushed out of the power connection hole, thereby ensuring the installation effect and facilitating installation; in addition, it also avoids the possibility that the positioning component is pulled out of the power connection hole when the cable shakes, providing the stability of cable installation.

[0020] Optionally: One end of the sleeve part facing the inside of the housing abuts against the limiting block.

[0021] By adopting the above technical solution, the depth of the sleeve part inserted into the housing is restricted, the clamping and fixing effect of the power connection hole and the positioning pipe on the sleeve part is strengthened, and the possibility of the sleeve part slipping off is reduced.

[0022] Optionally: The wire clamping part is a rotating body with the axis of the wire clamping hole as the axis, and the wire clamping part bends and closes inward along the axis.

[0023] By adopting the above technical solution, on the one hand, the clamping of the cable by the wire clamping part is more uniform under static conditions, and the static sealing effect is good; on the other hand, when the cable swings, the force on the wire clamping part is evenly distributed. The wire clamping part can not only adjust its position under the deformation of the deformation part, but also can undergo a small deformation itself to maintain the clamping and sealing of the wire clamping part to the cable.

[0024] Optionally, a limiting wall is provided on the outer layer of the positioning sleeve, and a limiting groove is provided on the outer wall surface of the housing outside the power connection hole. The limiting wall is inserted into the limiting groove, and the rotation of the limiting wall in the limiting groove is interfered by the groove wall of the limiting groove.

[0025] By adopting the above technical solution, the free rotation of the positioning sleeve in the circumferential direction is limited, and the possibility of the positioning sleeve becoming loose due to the circumferential rotation caused by the cable pulling is reduced.

[0026] Optionally, the deformable part is a hard, deformable, and hollow shell sheath, and the limiting wall is the outer wall of the deformable part.

[0027] By adopting the above technical solution, the structure of the positioning sleeve is more compact and the production is more convenient.

[0028] Optionally, a gap is left between the limiting wall and the groove wall of the limiting groove, and a gap is left between the limiting wall and the groove bottom of the limiting groove.

[0029] By adopting the above technical solution, when performing maintenance, tools such as a flat-blade screwdriver and a caliper can be inserted into the space between the limiting wall and the limiting groove, and the positioning sleeve can be pried out with the notch of the limiting groove as a fulcrum, which is convenient for maintenance.

[0030] Optionally, a chamfer is provided on the outer edge of the end of the fastening tube.

[0031] By adopting the above technical solution, it is convenient for the fastening tube to be inserted into the sleeve part, which is convenient for installation.

[0032] Optionally, the outer side of the fastening tube is a conical surface and the diameter increases axially from the housing inward.

[0033] By adopting the above technical solution, when the fastening tube is pushed into the sleeve part, the sleeve part will expand outward, thereby enhancing the stability and sealing effect of the sleeve part being clamped and fixed.

[0034] Optionally, there is a positioning wall in the positioning sleeve. The positioning wall is in contact with the end of the fastening tube, and the distance from the positioning wall to the end face of the sleeve part is equal to the length of the fastening tube.

[0035] By adopting the above technical solution, the abutment between the fastening tube and the positioning wall prevents the fastening tube from being inserted too deeply into the positioning sleeve and cracking the sleeve part.

[0036] In summary, the present application has at least the following beneficial effects:

[0037] When installing the mine-used acoustic-optic alarm of the present application, first put the positioning sleeve on the cable. After sliding the positioning sleeve to a position where the reserved end length of the cable is sufficient, press the wire clamping part to clamp and embed the wire clamping part into the cable. Then place the positioning tube in the housing, and pass the reserved end of the cable through the power connection hole and the positioning tube. Next, insert the sleeve into the power connection hole, align the fastening tube with the sleeve part, and push the sleeve part from the inside of the housing to the outside, so that the outer side of the sleeve part is squeezed and clamped by the hole wall of the power connection hole by the fastening tube, thereby realizing the installation of the cable. The deformation part provides a movement margin for the cable to deform when it is jolted, ensuring the sealing between the positioning component and the cable and the sealing between the positioning component and the housing. The cable installation is safer and more convenient, reducing the possibility of damaging the outer layer of the cable during the installation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 FIG. is a schematic structural diagram of a mine-used acoustic-optic alarm;

[0039] Figure 2 FIG. is an exploded view of the housing and the back plate;

[0040] Figure 3 FIG. is an exploded view of the positioning component;

[0041] Figure 4 FIG. is a cross-sectional view of the housing and the positioning sleeve;

[0042] Figure 5 is Figure 4 a partial enlarged view at A;

[0043] Figure 6 FIG. is a schematic diagram after the positioning sleeve is installed;

[0044] Figure 7 FIG. is a cross-sectional view after the positioning component is installed.

[0045] Reference numerals:

[0046] 1, housing; 11, light outlet; 12, sound outlet; 13, mounting feet; 14, power connection hole; 15, limiting groove; 2, cable; 3, positioning component; 31, positioning sleeve; 311, sleeve part; 312, wire clamping part; 3121, wire clamping hole; 313, deformation part; 3131, through hole wall; 3132, positioning wall; 3133, limiting wall; 32, positioning tube; 321, wire supporting tube; 322, fastening tube; 323, limiting block; 4, back plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0047] The following is further described with reference to the accompanying drawings of the specification.

[0048] As shown in the Figure 1 drawing, a mine-used acoustic-optic alarm includes a housing 1, a cable 2, and a positioning component 3 for fixing the cable 2 to the housing 1.

[0049] Among them, the outer shell 1 is box-shaped, and is provided with a light-emitting opening 11 for light to penetrate and a sound-emitting opening 12 for alarm sound to penetrate. The side of the outer shell 1 is provided with mounting feet 13, and the mounting feet 13 are fixed to the wall or rock wall by bolts.

[0050] As shown in the appendix Figure 1 and the appendix Figure 2 As shown, the back of the outer shell 1 is open, and the open part is covered and blocked by the back plate 4. The side of the outer shell 1 is provided with a power connection hole 14 for the end of the cable 2 to extend into.

[0051] As shown in the appendix Figure 1 and the appendix Figure 3 As shown, the positioning component 3 is installed at the power connection hole 14, and includes a positioning sleeve 31 and a positioning tube 32.

[0052] The positioning sleeve 31 is axially sleeved outside the cable 2 and is integrally formed by a light metal alloy, which is aluminum alloy here.

[0053] As shown in the appendix Figure 4 and the appendix Figure 5 As shown, the positioning sleeve 31 includes sleeve parts 311 and wire clamping parts 312 located at both ends.

[0054] The sleeve part 311 is tubular and is inserted into the power connection hole 14. The outer diameter of the sleeve part 311 is equal to the inner diameter of the power connection hole 14, and the length of the sleeve part 311 is greater than the length of the power connection hole 14.

[0055] The wire clamping part 312 is located at the other end of the positioning sleeve 31, and is a rotating body and coaxial with the sleeve part 311. The wire clamping part 312 shrinks and closes from the outside to the inside along the axial direction away from the sleeve part 311, forming a hemispherical shell, and a wire clamping hole 3121 coaxial with the sleeve part 311 is opened at the center.

[0056] As shown in the appendix Figure 1 and the appendix Figure 5 As shown, after the positioning sleeve 31 is sleeved outside the cable 2, move the position of the positioning sleeve 31 so that the reserved length of the cable 2 extending out of the sleeve part 311 is sufficient, and then use a tool to radially and uniformly tighten the wire clamping part 312 so that the hole wall of the wire clamping hole 3121 clamps and embeds the outside of the cable 2.

[0057] The positioning sleeve 31 further includes a deformation part 313 connecting the wire clamping part 312 and the sleeve part 311. The deformation part 313 is formed by bulging outward from the side of the positioning sleeve 31 and is an annular, hollow shell sheath. The ring body of the shell sheath has an axis coincident with the axis of the sleeve part 311.

[0058] The deformation part 313 includes two annular walls with perpendicular axes and a side wall located between the two annular walls. Among the two annular walls, the annular wall closer to the sleeve part 311 is the through-hole wall 3131, and the annular wall farther from the sleeve part 311 is the positioning wall 3132. The inner side surfaces of the through-hole wall 3131 and the positioning wall 3132 are both circular hole wall surfaces coaxial with the sleeve part 311. Among them, the inner diameter of the through-hole wall 3131 is the same as that of the sleeve part 311, and the inner diameter of the positioning wall 3132 is smaller than that of the sleeve part 311.

[0059] In addition, the dimension distance from the wall surface of the positioning wall 3132 facing the sleeve part 311 to the end face of the sleeve part 311 far from the wire clamping part 312 is D1.

[0060] As shown in the attached Figure 5 and attached Figure 6 As shown, the side wall of the deformation part 313 is the limiting wall 3133. The limiting wall 3133 is a combination of multiple wall surfaces according to the shape requirements of the deformation part 313, so that the outer side surface shape of the deformation part 313 is adjusted to a polygonal ring body. Here, the side wall of the deformation part 313 is composed of six wall surfaces, so that the outer shape of the deformation part 313 is a regular hexagonal ring body.

[0061] The distance from the limiting wall 3133 to the axis of the deformation part 313 changes with the position on the limiting wall 3133, and the difference between its maximum value and minimum value is C.

[0062] A limiting groove 15 is provided on the outer side surface of the shell at the orifice of the power connection hole 14. The shape of the limiting groove 15 is the same as that of the limiting wall 3133. Here, it is a straight groove with a regular hexagon.

[0063] When the sleeve part 311 of the positioning sleeve 31 is inserted into the power connection hole 14, the limiting wall 3133 sinks into the limiting groove 15, and there is a gap between the limiting wall 3133 and the limiting groove 15. The gap dimension is d, and d is less than C, that is, the rotation of the limiting wall 3133 in the limiting groove 15 is interfered by the groove wall of the limiting groove 15.

[0064] As shown in the attached Figure 3 and attached Figure 7 As shown, the positioning tube 32 is located inside the outer shell 1. Its two ends are respectively the wire supporting tube 321 and the fastening tube 322. At the same time, a ring-shaped limiting block 323 protrudes coaxially between the wire supporting tube 321 and the fastening tube 322 on the outer side of the positioning tube 32.

[0065] As shown in the attached Figure 7As shown, the length of the fastening tube 322 along the axial direction is H, and H is equal to D. The outer side surface of the fastening tube 322 is the side surface of a frustum of a cone, and its diameter gradually increases along the axis towards the tube support 321. The slope of the outer side surface of the fastening tube 322 is 0.5 - 2°, and the maximum outer diameter of the fastening tube 322 is larger than the inner diameter of the sleeve part 311, and the specific maximum diameter difference is 0.01 - 0.1 mm. In addition, chamfers are provided on both the inner and outer sides of the end of the fastening tube 322.

[0066] The fastening tube 322 passes through the power connection hole 14 in the housing 1 and is inserted into the sleeve part 311 at the same time. As the insertion depth of the fastening tube 322 increases, the sleeve part 311 expands outwards and presses against the hole wall of the power connection hole 14 for sealing. Thus, an interference fit and sealing formed by the fastening tube 322, the sleeve part 311, and the hole wall of the power connection hole 14 is achieved until the end of the fastening tube 322 abuts against the positioning wall 3132, the limiting block 323 also abuts against the inner side wall of the housing 1 around the orifice of the power connection hole 14, the end face of the sleeve part 311 also abuts against the limiting block 323, clamping and fixing the positioning sleeve 31 by the positioning tube 32 and the hole wall of the power connection hole 14. In addition, a gap is left between the through hole wall 3131 and the bottom of the limiting groove 15.

[0067] The cable 2 installation method of this application for a mine acoustic and optical alarm includes the following steps:

[0068] Put the positioning sleeve 31 on the cable 2. After sliding the positioning sleeve 31 to a position where the reserved end length of the cable 2 is sufficient, press the wire clamping part 312 to clamp and embed the wire clamping part 312 into the cable 2. Then place the positioning tube 32 in the housing 1, and pass the reserved end of the cable 2 through the power connection hole 14 and the positioning tube 32. Then insert the sleeve part 311 into the power connection hole 14, align the fastening tube 322 with the sleeve part 311 and push the sleeve part 311 from inside the housing 1 outwards, so that the sleeve part 311 is clamped by the outer side of the fastening tube 322 and the hole wall of the power connection hole 14, thereby realizing the installation of the cable 2.

[0069] During installation, the abutment of the limiting block 323 against the inner wall of the housing 1 prevents the fastening tube 322 from being pushed too deep and pushing the sleeve part 311 out of the power connection hole 14, thus ensuring the installation effect and facilitating installation. In addition, it also avoids the possibility of the cable 2 pulling the positioning component 3 out of the power connection hole 14 when the cable 2 shakes, improving the installation stability of the cable 2. The abutment between the limiting block 323 and the end of the sleeve part 311 limits the insertion depth of the sleeve part 311 into the housing 1, strengthening the clamping and fixing effect of the power connection hole 14 and the positioning tube 32 on the sleeve part 311 and reducing the possibility of the sleeve part 311 slipping off. The abutment of the fastening tube 322 against the positioning wall 3132 prevents the fastening tube 322 from being inserted too deep into the positioning sleeve 31 and cracking the sleeve part 311. Through the abutment between multiple groups of structures, the insertion depth of the positioning sleeve 31 and the positioning tube 32 and the installation position of the positioning sleeve 31 and the positioning tube 32 relative to the power connection hole 14 are controlled, making the installation of the cable 2 more convenient and accurate and ensuring the sealing safety.

[0070] After installation, the deformation part 313 provides a margin for the cable 2 to deform when jolted, ensuring the sealing between the positioning assembly 3 and the cable 2 and the sealing between the positioning assembly 3 and the housing 1.

[0071] Therefore, the installation of the cable 2 in the mine-used sound and light alarm of the present application is safer and more convenient, reducing the possibility of damaging the outer layer of the cable 2 during the installation process. In addition, due to the gaps between the deformation part 313 and the groove wall of the limiting groove 15, and between the deformation part 313 and the groove bottom of the limiting groove 15, when performing maintenance, workpieces such as a flat-blade screwdriver and a caliper can be inserted into the space between the limiting wall 3133 and the limiting groove 15, and the positioning sleeve 31 can be pried out with the notch of the limiting groove 15 as a fulcrum. The positioning assembly 3 is also relatively convenient to disassemble during maintenance.

[0072] This specific embodiment is only an explanation of the present application, and it is not a limitation of the present application. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions as needed, but as long as it is within the scope claimed by the present application, it is protected by the patent law.

Claims

1. A mine-used acoustic-optic alarm, comprising a housing (1) and a cable (2). An electricity connection hole (14) is formed in the housing (1), and the cable (2) passes through the electricity connection hole (14). It is characterized in that: It further comprises a positioning assembly (3). The positioning assembly (3) includes a positioning sleeve (31) and a positioning pipe (32) both sleeved outside the cable (2). The positioning sleeve (31) includes a wire clamping part (312), a sleeve part (311), and a deformable part (313) that can be deformed by force. The sleeve part (311) is inserted into the electricity connection hole (14), and the outer side surface of the sleeve part (311) fits against the hole wall of the electricity connection hole (14). The wire clamping part (312) is provided with a wire clamping hole (3121) for the cable (2) to pass through, and the hole wall of the wire clamping hole (3121) clamps and embeds the surface of the cable (2). The positioning pipe (32) includes a fastening pipe (322) inserted into the sleeve part (311), and the outer side of the fastening pipe (322) clamps the sleeve part (311) against the hole wall of the electricity connection hole (14).

2. The mine acoustic and optical alarm according to claim 1, characterized in that: The positioning pipe (32) includes a limiting block (323) located inside the housing (1), and the limiting block (323) abuts against the inner side wall surface of the housing (1).

3. The mine-used audible and visual alarm according to claim 2, wherein: One end of the sleeve part (311) facing the inside of the housing (1) abuts against the limiting block (323).

4. A mine acoustic-optic alarm according to claim 1, characterized in that: The wire clamping part (312) is a rotating body with the axis of the wire clamping hole (3121) as the axis, and the wire clamping part (312) bends and closes inward along the axis.

5. The mine-used sound and light alarm according to claim 1, characterized in that: A limiting wall (3133) is provided on the outer layer of the positioning sleeve (31). A limiting groove (15) is provided on the outer wall surface of the housing (1) outside the electricity connection hole (14). The limiting wall (3133) sinks into the limiting groove (15), and the rotation of the limiting wall (3133) in the limiting groove (15) is interfered by the groove wall of the limiting groove (15).

6. The mine acoustic and optical alarm according to claim 5, characterized in that: The deformable part (313) is a hard, deformable, and hollow shell sheath body, and the limiting wall (3133) is the outer wall of the deformable part (313).

7. The mine acoustic-optical alarm according to claim 5, characterized in that: A gap is left between the limiting wall (3133) and the groove wall of the limiting groove (15), and a gap is also left between the limiting wall (3133) and the groove bottom of the limiting groove (15).

8. The mining sound and light alarm according to claim 1, wherein: A chamfer is provided on the outer edge of the end of the fastening pipe (322).

9. The mine acoustic-optic alarm according to claim 1, wherein: The outer side of the fastening pipe (322) is a conical surface and the diameter becomes larger from the housing (1) inward along the axis.

10. The mine-used sound and light alarm according to claim 1, wherein: There is a positioning wall (3132) inside the positioning sleeve (31). The positioning wall (3132) fits against the end of the fastening pipe (322), and the distance from the positioning wall (3132) to the end surface of the sleeve part (311) is equal to the length of the fastening pipe (322).

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