Mining intrinsic safety type proximity switch

Abstract

The utility model discloses a mining intrinsic safety type proximity switch, which comprises a mounting plate, the mounting plate is fixed at a working place through bolts, the side surface of the mounting plate is fixedly provided with an isolation fence, the side surface of the isolation fence is provided with a switch body, the side surface of the switch body is provided with a cable, the side surface of the isolation fence is provided with a winding mechanism, and the winding mechanism is provided with a cable. And the cable is inserted into the winding mechanism and is wound on the winding mechanism. Compared with the prior art, the winding mechanism is arranged, the driving mechanism in the winding mechanism is used for driving the movable frame and the threaded column to rotate, in the using process, the movable frame drives the sliding block and the guide frame through the threaded column, the cable is guided to be wound on the winding roller, and in the process, the threaded column rotates automatically, so that the cable is wound on the winding roller. The guide frame is driven to move through threaded transmission with the sliding block, the cable winding position is adjusted through the guide frame, the winding stability can be effectively improved, redundant cables can be wound conveniently, and the use safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of intrinsically safe switches, in particular to a mine-used intrinsically safe proximity switch. Background Art

[0002] An intrinsically safe switch, that is, an intrinsically safe type switch, is a special electrical switch, and its design aims to ensure that under electrical faults or abnormal operating conditions, the generated electric sparks or thermal effects are not sufficient to ignite the explosive mixture. Such switches are widely used in places where flammable and explosive gases exist, such as coal mines, oil fields, and chemical industries, to ensure production safety.

[0003] During the use of the intrinsically safe switch, it needs to be used in cooperation with a safety isolator. In order to improve the flexibility of the switch use, the length of the cable of the intrinsically safe switch is usually set relatively long. In this way, the redundant cables will accumulate in the working area, resulting in a reduction in safety, and there are certain deficiencies in the use. Therefore, we propose a mine-used intrinsically safe proximity switch. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art, and to propose a mine-used intrinsically safe proximity switch.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A mine-used intrinsically safe proximity switch includes a mounting plate, the mounting plate is fixed at the working location by bolts, an isolator is fixed on the side of the mounting plate, a switch body is installed on the side of the isolator, a cable is installed on the side of the switch body, a winding mechanism is installed on the side of the isolator, and the cable is inserted into the inside of the winding mechanism and wound on the winding mechanism.

[0007] Preferably, the winding mechanism includes a mounting frame fixed on the isolator, one end inside the mounting frame is clamped with a winding roller, a driving mechanism is installed at the other end of the mounting frame, a movable frame is installed on the side of the driving mechanism, a threaded column is rotatably connected inside the movable frame, a slider is connected to the threaded column by threads, the threaded column is inserted into the inside of the driving mechanism and connected thereto, the slider is slidably connected to the movable frame, and a guiding frame is installed at the bottom of the slider.

[0008] Preferably, the winding roller is a hollow cylinder structure, a fixing sleeve is installed on the winding roller, the fixing sleeve is inserted into the inside of the winding roller, the cable is inserted into the inside of the winding roller from the side of the winding roller, the cable passes through the fixing sleeve and is fixed thereto, and the cable is wound on the winding roller.

[0009] Preferably, the driving mechanism includes a housing fixed to the inner wall of the mounting frame. A gear ring is fixed inside the housing. A regulating rod is rotatably connected to the side of the housing. The regulating rod penetrates through and is rotatably connected to the side of the mounting frame. The regulating rod is inserted into the housing and connected to a turntable. The turntable is rotatably connected to the housing. A rotating shaft is rotatably connected to the turntable. The rotating shaft is inserted into the housing and connected to a gear.

[0010] Preferably, the gear is in meshing transmission with the gear ring, and the rotating shaft and the threaded column are connected by a coupling.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] By providing a winding mechanism, the driving mechanism inside it drives the movable frame and the threaded column to rotate. During use, the movable frame drives the slider and the guiding frame through the threaded column to guide the cable to be wound on the winding roller. During this process, the threaded column rotates and drives the guiding frame to move through the threaded transmission with the slider. The position of the cable winding is adjusted through the guiding frame, which can effectively improve the winding stability, facilitate the winding of redundant cables, and improve the safety of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of a mine intrinsically safe proximity switch proposed by the present utility model;

[0014] Figure 2 is Figure 1 a side view of the winding mechanism in

[0015] Figure 3 is Figure 2 a cross-sectional view of the driving mechanism in

[0016] In the figure: 1 mounting plate, 2 isolation grid, 3 switch body, 4 cable, 5 winding mechanism, 51 mounting frame, 52 winding roller, 53 fixed sleeve, 54 driving mechanism, 541 housing, 542 gear ring, 543 regulating rod, 544 turntable, 545 rotating shaft, 546 gear, 55 movable frame, 56 threaded column, 57 slider, 58 guiding frame. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0018] Referring to Figures 1 - 3, a intrinsically safe proximity switch for mining, includes a mounting plate 1 which is fixed to the working location by bolts. A isolation grid 2 is fixed to the side of the mounting plate 1. A switch body 3 is installed on the side of the isolation grid 2. A cable 4 is installed on the side of the switch body 3. A winding mechanism 5 is installed on the side of the isolation grid 2. The cable 4 is inserted into the inside of the winding mechanism 5 and wound on the winding mechanism 5.

[0019] As an implementation, the winding mechanism 5 includes a mounting frame 51 fixed to the isolation grid 2. One end inside the mounting frame 51 is clamped with a winding roller 52. The other end of the mounting frame 51 is installed with a driving mechanism 54. A movable frame 55 is installed on the side of the driving mechanism 54. A threaded column 56 is rotatably connected inside the movable frame 55. A slider 57 is threadedly connected to the threaded column 56. The threaded column 56 is inserted into the inside of the driving mechanism 54 and connected thereto. The slider 57 is slidably connected to the movable frame 55. A guiding frame 58 is installed at the bottom of the slider 57. The winding roller 52 is a hollow cylindrical structure. A fixing sleeve 53 is installed on the winding roller 52. The fixing sleeve 53 is inserted into the inside of the winding roller 52. The cable 4 is inserted into the inside of the winding roller 52 from the side of the winding roller 52. The cable 4 passes through the fixing sleeve 53 and is fixed thereto. The cable 4 is wound on the winding roller 52. The driving mechanism 54 includes a housing 541 fixed to the inner wall of the mounting frame 51. A gear ring 542 is fixed inside the housing 541. An adjusting rod 543 is rotatably connected to the side of the housing 541. The adjusting rod 543 passes through the side of the mounting frame 51 and is rotatably connected thereto. The adjusting rod 543 is inserted into the inside of the housing 541 and connected with a turntable 544. The turntable 544 is rotatably connected to the housing 541. A rotating shaft 545 is rotatably connected to the turntable 544. The rotating shaft 545 is inserted into the inside of the housing 541 and connected with a gear 546. The gear 546 is meshed with the gear ring 542 for transmission. The rotating shaft 545 and the threaded column 56 are connected by a coupling.

[0020] During use, the mounting plate 1 is fixed to the working location by bolts. The switch body 3 is installed on the side of the isolation grid 2. Subsequently, the cable 4 is inserted into the inside of the winding roller 52 from the side of the winding roller 52. The cable then passes out from the side of the fixing sleeve 53 and then passes through the guiding frame 58. Subsequently, the adjusting rod 543 is rotated. The adjusting rod 543 drives the turntable 544 to rotate. The turntable 544 drives the rotating shaft 545 and the movable frame 55 to rotate. During this process, the meshing transmission between the gear 546 on the rotating shaft 545 and the gear ring 542 drives the rotating shaft 545 to rotate itself. The rotating shaft 545 drives the threaded column 56 to rotate. The threaded column 56 drives the guiding frame 58 to slide inside the movable frame 55 through the threaded transmission with the slider 57. During this process, the movable frame 55 drives the slider 57 and the guiding frame 58 to move through the threaded column 56, guiding the cable 4 to be wound on the winding roller 52. At this time, the slider 57 drives the guiding frame 58 to move to adjust the winding position, which can effectively and stably wind the cable 4, avoid cable accumulation, and improve the safety of use.

[0021] In summary, compared with the prior art, the utility model drives the movable frame and the threaded column to rotate by setting a winding mechanism and using the driving mechanism inside it. During use, the movable frame drives the slider and the guiding frame through the threaded column, guiding the cable to wind on the winding roller. During this process, the threaded column rotates self - rotatably, drives the guiding frame to move through the threaded transmission with the slider, and adjusts the winding position of the cable through the guiding frame, which can effectively improve the winding stability, facilitate the winding of redundant cables, and improve the safety of use.

[0022] The above - mentioned are only the preferred specific embodiments of the utility model, but the protection scope of the utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the utility model, according to the technical solution of the utility model and its inventive concept, makes equivalent replacements or changes, and all should be covered within the protection scope of the utility model.

Claims

1. A intrinsically safe proximity switch for mine use, comprising a mounting plate (1), characterized in that, The mounting plate (1) is fixed at the working location by bolts. A partition fence (2) is fixed to the side of the mounting plate (1). A switch body (3) is installed on the side of the partition fence (2). A cable (4) is installed on the side of the switch body (3). A winding mechanism (5) is installed on the side of the partition fence (2). The cable (4) is inserted into the interior of the winding mechanism (5) and wound on the winding mechanism (5).

2. The intrinsically safe proximity switch for mine use according to claim 1, characterized in that, The winding mechanism (5) includes a mounting frame (51) fixed to the partition fence (2). One end inside the mounting frame (51) is snap-connected with a winding roller (52). A driving mechanism (54) is installed at the other end of the mounting frame (51). A movable frame (55) is installed on the side of the driving mechanism (54). A threaded column (56) is rotatably connected inside the movable frame (55). A slider (57) is threadedly connected to the threaded column (56). The threaded column (56) is inserted into the interior of the driving mechanism (54) and connected thereto. The slider (57) is slidably connected to the movable frame (55). A guiding frame (58) is installed at the bottom of the slider (57).

3. The intrinsically safe proximity switch for mine use according to claim 2, characterized in that, The winding roller (52) is a hollow cylindrical structure. A fixing sleeve (53) is installed on the winding roller (52). The fixing sleeve (53) is inserted into the interior of the winding roller (52). The cable (4) is inserted into the interior of the winding roller (52) from the side of the winding roller (52). The cable (4) penetrates through the fixing sleeve (53) and is fixed thereto. The cable (4) is wound on the winding roller (52).

4. The intrinsically safe proximity switch for mine use according to claim 2, characterized in that, The driving mechanism (54) includes a housing (541) fixed to the inner wall of the mounting frame (51). A gear ring (542) is fixed inside the housing (541). An adjusting rod (543) is rotatably connected to the side of the housing (541). The adjusting rod (543) penetrates through the side of the mounting frame (51) and is rotatably connected thereto. The adjusting rod (543) is inserted into the interior of the housing (541) and connected with a turntable (544). The turntable (544) is rotatably connected to the housing (541). A rotating shaft (545) is rotatably connected to the turntable (544). The rotating shaft (545) is inserted into the interior of the housing (541) and connected with a gear (546).

5. The intrinsically safe proximity switch for mine use according to claim 4, wherein, The gear (546) is in meshing transmission with the gear ring (542). The rotating shaft (545) and the threaded column (56) are connected by a coupling.

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