Safety protection structure of mine hoist

Abstract

The utility model relates to the technical field of mine hoists, in particular to a safety protection structure of a mine hoist. The two opening and closing door plates are symmetrically mounted at the inlet and outlet of the protective box cover, and the opening and closing mechanism composed of the linkage block, the double-shaft motor, the lead screw and the storage cavity is jointly mounted between the two opening and closing door plates and the protective box cover; meanwhile, a waterproof lifting mechanism composed of a sliding frame, a sealing ring, a waterproof electric push rod and a sliding cavity is jointly installed between a base at the bottom end of the protection box cover and the embedded sleeve frame, so that when the safety protection mechanism is used, opening and closing of an opening and closing door plate can be controlled in an electric opening and closing mode; the safety protection device is simple in structure and convenient to use, the situation that workers enter the well mouth of the mine hoist in the non-working period and accidentally fall down is avoided, the base can be lifted in an electric lifting mode, rainwater around the base is prevented from entering the well mouth in the rainstorm weather, and the safety protection performance of the well mouth on the lower side of the mine hoist is better.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mine hoist safety protection, in particular to a mine hoist safety protection structure. BACKGROUND

[0002] The mine hoist refers to the main transportation equipment connecting underground and ground in mining engineering, and is installed on the ground to drive the lifting container along the shaft or slope by the steel wire rope. In the use process of the mine hoist, in order to prevent the accidental falling of the staff from the exposed shaft opening of the mine hoist, a protective structure needs to be installed at the lower shaft opening of the mine hoist.

[0003] The existing safety protection mechanism of the mine hoist shaft opening mainly comprises a bottom frame, a protective cover installed on the bottom frame, a manually opened and closed door plate installed on one side wall of the protective cover, and a grating window installed on the other three side walls of the protective cover. The patent number CN201922299425.8 discloses a mine hoist shaft opening protection device with this structure. The existing safety protection mechanism of the mine hoist shaft opening mainly relies on the protective cover to isolate the mine hoist shaft opening from the outside, and uses the manually opened and closed door plate to avoid the accidental falling of the staff to the shaft opening.

[0004] Although the existing safety protection mechanism of the mine hoist shaft opening can shield and protect the shaft opening, the manually opened and closed door plate cannot limit the staff from entering the shaft opening below the mine hoist during non-working hours, so there is still a certain safety hazard. At the same time, due to the fixed height of the base of the existing safety protection mechanism of the mine hoist shaft opening, when it rains, the rainwater around the shaft opening may accumulate and rise, causing the rainwater to overflow the grating window on the protective cover and enter the shaft opening, thereby reducing the safety of the device in rainy weather. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application aims to provide a mine hoist safety protection structure which can control the opening and closing of the door plate by electrically opening and closing, avoid the accidental falling of the staff into the mine hoist shaft opening during non-working hours, and avoid the rainwater around the base from entering the shaft opening in rainy weather by electrically lifting.

[0006] The above application purpose of the present application is achieved by the following technical scheme:

[0007] The utility model provides a mine hoist safety protection structure, including well shaft, the well mouth of well shaft is installed with the base, the base top is installed with the protection box cover, the import and export of protection box cover is installed with two open and close door leaves symmetrically, one open and close mechanism is installed between two open and close door leaves and protection box cover, the lower side of base is provided with pre -buried casing, the bottom of base and pre -buried casing are installed with a waterproof lifting mechanism, the open and close mechanism includes linkage block, double -shaft motor, screw rod and storage cavity, the storage cavity is set up on the protection box cover and is cooperated with open and close door leaf matching part, double -shaft motor is located in the top middle part of storage cavity, screw rod is installed in the power output of double -shaft motor, linkage block is installed in open and close door leaf top one side, and linkage block is connected with screw rod, waterproof lifting mechanism includes sliding frame, sealing ring, waterproof electric push rod and sliding cavity, sliding cavity is located in the side wall interlayer of pre -buried casing, waterproof electric push rod is installed in sliding cavity, sliding frame is connected with the bottom of base, and the bottom of sliding frame is connected with waterproof electric push rod, and sealing ring is installed on the outer wall of sliding frame in the way of layer by layer embedding.

[0008] Optionally, a grating window is additionally installed on each of the other three side walls of the protection box cover, and a lifting line hole is additionally reserved in the middle of the top of the protection box cover for the lifting line of the mine hoist to pass through.

[0009] Optionally, the open and close door leaf is in sliding fit with the storage cavity, and the linkage block is welded to the corresponding open and close door leaf.

[0010] Optionally, the double-shaft motor is bolted to the storage cavity, the double-shaft motor is connected to the screw rod through a shaft coupling, and the screw rod is in sliding fit with the storage cavity.

[0011] Optionally, the screw rod penetrates through the linkage block and is threadedly connected to the linkage block.

[0012] Optionally, the sliding frame is welded to the base, and the sliding frame is in sliding fit with the sliding cavity.

[0013] Optionally, the sealing ring is a rubber ring, and the sealing ring has a H-shaped structure.

[0014] Optionally, the bottom of the sliding frame is concave, and the bottom of the sliding frame is bolted to the waterproof electric push rod.

[0015] Optionally, the sliding cavity penetrates through the upper part of the side wall of the pre-buried casing, and the pre-buried casing is made of stainless steel.

[0016] In summary, the present application has at least one of the following beneficial technical effects:

[0017] The utility model discloses a symmetrical installation two open -and -close door boards at the import and export of the protection box cover, and install one open -and -close mechanism that is constituted by linkage block, double -shaft motor, screw rod and storage cavity between two open -and -close door boards and the protection box cover together, simultaneously install one waterproof lifting mechanism that is constituted by sliding frame, sealing washer, waterproof electric push rod and sliding cavity between the base of protection box cover bottom end and the embedded sleeve frame together, make the safety protection mechanism when using, not only can through the electric open -and -close mode to control the opening and closing of open -and -close door board, avoid the staff to enter the mine hoist well mouth in the non -working period and appear accidental falling situation, and can make the base lift through the electric lifting mode, avoid the rainwater around the base to enter the well mouth when the rainstorm weather, make the safety protection performance of the mine hoist lower well mouth better. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the structural schematic diagram provided by the embodiment of the application.

[0019] Figure 2 It is the main sectional view provided by the embodiment of the application.

[0020] Figure 3 It is the connection structure schematic diagram of protection box cover and door plate provided by the embodiment of the application.

[0021] Figure 4 It is the split drawing of base and embedded sleeve frame provided by the embodiment of the application.

[0022] Figure 5 It is the Figure 2 The enlarged view of A in the figure.

[0023] Mark explanation: 1, hoist wire hole, 2, protection box cover, 3, grating window, 4, base, 5, embedded sleeve frame, 6, shaft, 7, open -and -close door plate, 8, open -and -close mechanism, 81, linkage block, 82, double -shaft motor, 83, screw rod, 84, storage cavity, 9, waterproof lifting mechanism, 91, sliding frame, 92, sealing washer, 93, waterproof electric push rod, 94, sliding cavity. DETAILED DESCRIPTION

[0024] The application will be further described in detail below in combination with the drawings.

[0025] In order to more clearly understand the technical scheme shown in the embodiment of the application, first, the structure and working principle of the safety protection mechanism at the well mouth of the mine hoist are introduced.

[0026] The existing safety protection mechanism at the well mouth of a mine hoist mainly comprises a bottom frame, a protective cover installed on the bottom frame, a manually opened and closed door plate installed on one side wall of the protective cover, and grating windows installed on the other three side walls of the protective cover. The existing safety protection mechanism at the well mouth of a mine hoist mainly relies on the protective cover to isolate the well mouth of the mine hoist from the outside, and relies on the opened and closed door plate to avoid accidental falling of workers to the well mouth.

[0027] Please refer to Figures 1-4 A safety protection mechanism for a mine hoist disclosed in the embodiments of the present application comprises a shaft 6, a base 4 installed around the well mouth of the shaft 6, a protective box cover 2 installed around the top end of the base 4, two opened and closed door plates 7 symmetrically installed at the inlet and outlet of the protective box cover 2, an opening and closing mechanism 8 jointly installed between the two opened and closed door plates 7 and the protective box cover 2, a pre-buried sleeve frame 5 arranged at the lower side of the base 4, and a waterproof lifting mechanism 9 jointly installed between the bottom end of the base 4 and the pre-buried sleeve frame 5. The opening and closing mechanism 8 comprises a linkage block 81, a double-shaft motor 82, a lead screw 83, and a storage cavity 84. The storage cavity 84 is formed in the protective box cover 2 at the matching part of the opened and closed door plate 7. The double-shaft motor 82 is located at the top middle part of the storage cavity 84. The lead screw 83 is installed at the power output end of the double-shaft motor 82. The linkage block 81 is installed at one side of the top end of the opened and closed door plate 7, and is connected with the lead screw 83. The waterproof lifting mechanism 9 comprises a sliding frame 91, a sealing ring 92, a waterproof electric push rod 93, and a sliding cavity 94. The sliding cavity 94 is located in the side wall interlayer of the pre-buried sleeve frame 5. The waterproof electric push rod 93 is installed in the sliding cavity 94. The sliding frame 91 is connected with the bottom end of the base 4. The bottom end of the sliding frame 91 is connected with the waterproof electric push rod 93. The sealing ring 92 is installed on the outer wall of the sliding frame 91 in a nested manner.

[0028] Specifically, when the opened and closed door plate 7 is opened, the lead screw 83 is rotated under the action of the double-shaft motor 82. After the rotation of the lead screw 83, the linkage block 81 is moved along the storage cavity 84 under the action of thread transmission, so that the corresponding opened and closed door plate 7 is slid into the storage cavity 84 under the action of the linkage block 81, thereby realizing the opening of the opened and closed door plate 7. When the opened and closed door plate 7 is closed, the double-shaft motor 82 is only required to be reversed to rotate the lead screw 83 in the opposite direction, so that the opened and closed door plate 7 is closed under the action of thread transmission, thereby realizing the closure of the protective box cover 2, preventing workers from entering the well mouth of the mine hoist during non-working hours and falling accidentally. When the water level beside the well mouth of the mine hoist rises due to heavy rain, the sliding frame 91 is only required to be ejected from the sliding cavity 94 under the action of the waterproof electric push rod 93, so that the base 4 is lifted, and the sealing between the sliding frame 91 and the sliding cavity 94 is ensured under the action of the sealing ring 92, thereby avoiding the entry of external rainwater into the well mouth below the mine hoist.

[0029] Please refer to Figure 1 and Figure 2The protective box cover 2 is additionally provided with three grating windows 3 on the other three sidewalls, and a lifting line hole 1 is additionally reserved in the middle of the top end of the protective box cover 2 for the lifting line of the mine hoist.

[0030] As an implementation form, the grating window 3 can ensure that the top end of the shaft 6 has sufficient light at the wellhead, and facilitate the convenient entry and exit of the construction personnel from the protective box cover 2.

[0031] Please refer to Figure 1 and Figure 3 The opening and closing door plate 7 is in sliding fit with the storage cavity 84, and the linkage block 81 is welded with the corresponding opening and closing door plate 7.

[0032] As an implementation form, the sliding fit of the opening and closing door plate 7 with the storage cavity 84 can ensure the stable movement of the opening and closing door plate 7 in the storage cavity 84, and the welding fixing mode can ensure the synchronous movement of the opening and closing door plate 7 with the linkage block 81.

[0033] Please refer to Figure 3 The double-shaft motor 82 is bolted with the storage cavity 84, the double-shaft motor 82 is connected with the lead screw 83 through a shaft coupling, and the lead screw 83 is in sliding fit with the storage cavity 84.

[0034] As an implementation form, the double-shaft motor 82 is mainly used to provide power for the rotation of the lead screw 83, so as to realize the convenient opening and closing of the opening and closing door plate 7 during the rotation of the lead screw 83.

[0035] Please refer to Figure 3 The lead screw 83 penetrates through the linkage block 81 and is threadedly connected with the linkage block 81.

[0036] As an implementation form, the screw connection cooperation mode enables the linkage block 81 to move along the length direction of the lead screw 83 after the rotation of the lead screw 83, so as to realize the convenient movement adjustment of the opening and closing door plate 7.

[0037] Please refer to Figure 2 , Figure 4 and Figure 5 The sliding frame 91 is welded with the base 4, and the sliding frame 91 is in sliding fit with the sliding cavity 94.

[0038] As an implementation form, the welding fixing mode can ensure the synchronous lifting adjustment of the base 4 with the sliding frame 91, and the sliding fit installation mode enables the sliding adjustment of the sliding frame 91 relative to the sliding cavity 94 to be more convenient.

[0039] Please refer to Figure 2 , Figure 4 and Figure 5 The sealing ring 92 is a rubber ring, and the sealing ring 92 is in a back-shaped structure.

[0040] As an implementation form, the sealing ring 92 is mainly used for sealing between the side wall of the sliding frame 91 and the side wall of the sliding cavity 94, so as to avoid external rainwater from entering the sliding cavity 94 when the sliding frame 91 is lifted and slides relative to the sliding cavity 94.

[0041] Please refer to Figure 2 , Figure 4 and Figure 5 , the bottom end of the sliding frame 91 opposite to the waterproof electric push rod 93 is a concave structure, and the sliding frame 91 is bolted with the telescopic part of the waterproof electric push rod 93.

[0042] As an implementation form, the concave structure design not only provides installation space for the waterproof electric push rod 93, but also ensures the convenient contraction of the sliding frame 91 into the sliding cavity 94.

[0043] Please refer to Figure 2 , Figure 4 and Figure 5 , the sliding cavity 94 penetrates through the upper part of the side wall of the embedded sleeve frame 5, and the embedded sleeve frame 5 is made of stainless steel.

[0044] As an implementation form, the penetration of the sliding cavity 94 through the upper part of the side wall of the embedded sleeve frame 5 can ensure that the sliding frame 91 can be conveniently slid out of the embedded sleeve frame 5.

[0045] The specific working principle is that when the safety protection is performed on the shaft mouth at the lower side of the mine hoist, the base 4, the embedded sleeve frame 5 and the protective cover are installed at the shaft mouth of the shaft 6, and the whole safety protection structure is connected with external power supply and control components, and then the shaft mouth of the shaft 6 can be covered and protected under the action of the protective box cover 2. In the protection process, when the opening and closing door plate 7 is opened, the screw rod 83 is rotated under the action of the double-shaft motor 82, and after the screw rod 83 is rotated, the linkage block 81 moves along the storage cavity 84 under the action of the screw thread transmission, so that the corresponding opening and closing door plate 7 slides into the storage cavity 84 under the action of the linkage block 81, and the opening and closing of the opening and closing door plate 7 is realized. When the opening and closing door plate 7 is closed, the double-shaft motor 82 is only reversed to rotate the screw rod 83 in the opposite direction, so that the opening and closing door plate 7 is closed under the action of the screw thread transmission, so as to realize the closure of the protective box cover 2, prevent the staff from entering the shaft mouth of the mine hoist during non-working period and falling accidentally, and when the water level beside the shaft mouth of the mine hoist rises due to heavy rain, the sliding frame 91 is only ejected from the sliding cavity 94 under the action of the waterproof electric push rod 93, so that the base 4 is lifted, and the sealing between the sliding frame 91 and the sliding cavity 94 is ensured under the action of the sealing ring 92, so as to avoid the external rainwater from entering the shaft mouth at the lower side of the mine hoist, and the safety protection performance of the shaft mouth at the lower side of the mine hoist is better.

[0046] The embodiments of the present application are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, and thus: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A mine hoist safety shield, characterized by: The application relates to a well shaft (6) which is provided with a base (4) at the well mouth, the top end of the base (4) is provided with a protective box cover (2), two open-close door plates (7) are symmetrically arranged at the inlet and outlet of the protective box cover (2), an open-close mechanism (8) is arranged between the two open-close door plates (7) and the protective box cover (2), a pre-buried sleeve frame (5) is arranged at the lower side of the base (4), and a waterproof lifting mechanism (9) is arranged between the bottom end of the base (4) and the pre-buried sleeve frame (5), the open-close mechanism (8) comprises a linkage block (81), a double-shaft motor (82), a lead screw (83) and a receiving cavity (84), the receiving cavity (84) is arranged on the protective box cover (2) and matches the open-close door plate (7), the double-shaft motor (82) is arranged at the top middle part of the receiving cavity (84), the lead screw (83) is arranged at the power output end of the double-shaft motor (82), the linkage block (81) is arranged at one side of the top end of the open-close door plate (7), and the linkage block (81) is connected with the lead screw (83); the waterproof lifting mechanism (9) comprises a sliding frame (91), a sealing ring (92), a waterproof electric push rod (93) and a sliding cavity (94), the sliding cavity (94) is arranged in the side wall interlayer of the pre-buried sleeve frame (5), the waterproof electric push rod (93) is arranged in the sliding cavity (94), the sliding frame (91) is connected with the bottom end of the base (4), the bottom end of the sliding frame (91) is connected with the waterproof electric push rod (93), and the sealing ring (92) is arranged on the outer wall of the sliding frame (91) in a nested mode.

2. A mine hoist safety shield structure according to claim 1, characterized in that: Three side walls of the protective box cover (2) are additionally provided with one grating window (3) respectively, and the top middle part of the protective box cover (2) is additionally provided with a lifting wire hole (1) for the lifting wire of a mine hoist.

3. A mine hoist safety shield structure according to claim 1, characterized in that: The open-close door plate (7) is in sliding fit with the receiving cavity (84), and the linkage block (81) is welded with the corresponding open-close door plate (7).

4. A mine hoist safety shield structure according to claim 3, characterised in that: The double-shaft motor (82) is in bolt connection with the receiving cavity (84), the double-shaft motor (82) is in shaft coupling connection with the lead screw (83), and the lead screw (83) is in sliding fit with the receiving cavity (84).

5. A mine hoist safety shield structure according to claim 4, characterised in that: The lead screw (83) penetrates through the linkage block (81) and is in threaded connection with the linkage block (81).

6. A mine hoist safety shield structure according to claim 1, characterized in that: The sliding frame (91) is welded with the base (4), and the sliding frame (91) is in sliding fit with the sliding cavity (94).

7. A mine hoist safety shield structure according to claim 6, characterised in that: The sealing ring (92) is a rubber ring and has a back-to-back structure.

8. A mine hoist safety shield structure according to claim 6, characterised in that: The bottom end of the sliding frame (91) is provided with a concave structure opposite to the waterproof electric push rod (93), and the sliding frame (91) is in bolt connection with the telescopic part of the waterproof electric push rod (93).

9. A mine hoist safety shield structure according to claim 6, characterized in that: The sliding cavity (94) penetrates through the upper part of the side wall of the pre-buried sleeve frame (5), and the pre-buried sleeve frame (5) is made of stainless steel.

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