Well mouth sealing device of draw shaft

Abstract

The utility model relates to a draw shaft mouth sealing device which comprises a base used for sealing a draw shaft mouth, a groove is formed in the top face of the base, a through hole communicated with the draw shaft mouth is formed in the bottom of the groove, a well lid and a lifting plate are arranged in the groove, the well lid is arranged in the groove in a sliding fit mode, and the lifting plate is located on one side of the well lid. A linkage assembly is arranged between the lifting plate and the well lid, and the lifting plate can drive the well lid to slide through the linkage assembly when moving in the height direction. An elastic supporting assembly is arranged between the lifting plate and the bottom of the groove, when the elastic supporting assembly is in a free stretching state, the lifting plate is pushed to be in a high-position state, and the through hole is covered with the well lid in the state. The utility model relates to a draw shaft wellhead sealing device, and aims to provide the draw shaft wellhead sealing device to solve the problems that in the prior art, the draw shaft wellhead sealing and opening operation is tedious, and the working efficiency is low.

Description

Technical Field

[0001] The utility model relates to the technical field of wellhead sealing, in particular to a wellhead sealing device for a slide well. Background Art

[0002] A chute is a tunnel that uses its own weight to slide ore from top to bottom. It is widely used in mines that are developed by adit or shaft. There are generally two types of chutes: one is for transferring ore or waste rock from the upper stage to the lower stage or lower ore bin, serving one or more stages, called the main chute, which is an auxiliary development tunnel; the other is for transferring ore from the mining area to the stage transportation tunnel, serving one or more mining areas, called the mining area chute, the latter is a mining area tunnel. Most of the existing chute openings are open, and workers are active frequently during on-site operations, which poses a risk of falling.

[0003] For example, the patent with patent number CN215577143U discloses a safety closure device for the mouth of a mining side chute. Through the arrangement of a mining base, a side chute body, an annular groove, a screen plate, a slide rail, four slide bars, a cover door, a traction rope, a connecting block, a box body, a roller, an axle rod, a motor, a wire rope, a dust hood, a dust removal box, a fan, a connecting pipe and a dust filter bag, the device solves the problem that the existing chute mouths are mostly open, personnel activities are frequent during on-site operations, and there is a risk of falling.

[0004] However, the above-mentioned patent requires manual control of the lifting device to move the manhole cover and expose the wellhead when releasing the ore. After the ore is released, the lifting device needs to be manually controlled to move the manhole cover and cover the wellhead. The closing and opening operations of the wellhead are relatively cumbersome and the work efficiency is low. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide a chute well mouth closing device to solve the problem that the closing and opening operations of the chute well mouth in the prior art are relatively cumbersome and the working efficiency is low.

[0006] The utility model is realized by the following technical solutions:

[0007] A chute well mouth closing device comprises a base for closing the chute well mouth, the top surface of the base is provided with a groove, the bottom of the groove is provided with a through hole connected with the chute well mouth, a manhole cover and a lifting plate are arranged in the groove, the manhole cover is slidably fitted in the groove, the lifting plate is located on one side of the manhole cover, a linkage component is arranged between the lifting plate and the manhole cover, and the lifting plate can drive the manhole cover to slide through the linkage component when moving in the height direction; an elastic support component is arranged between the lifting plate and the bottom of the groove, and when the elastic support component is in a freely extended state, it pushes the lifting plate to be in a high position, and in this state, the manhole cover covers the through hole.

[0008] Furthermore, the groove includes a first groove extending along the length direction of the base and a second groove extending along the height direction of the base, the manhole cover is slidably connected in the first groove, and the lifting plate is slidably connected in the second groove; the linkage assembly includes first connecting rods respectively fixedly connected to both sides of the manhole cover, the ends of the two first connecting rods away from the manhole cover are rotatably connected to the second connecting rods, and the ends of the two second connecting rods away from the first connecting rods are rotatably connected to both sides of the lifting plate.

[0009] Furthermore, a third connecting rod is provided between the first connecting rod and the second connecting rod, and two ends of the third connecting rod are rotatably connected to an end of the first connecting rod away from the manhole cover and an end of the second connecting rod away from the lifting plate respectively.

[0010] Furthermore, the elastic support assembly includes a first spring, and two ends of the first spring are respectively against the bottom surface of the second groove and the bottom surface of the lifting plate.

[0011] Furthermore, the bottom surface of the second groove is provided with two first sliding grooves extending along the height direction of the base, and the two first sliding grooves are slidably connected with first sliding rods, one end of the two first sliding rods is fixedly connected to the bottom surface of the lifting plate, and the first spring is sleeved on the first sliding rod.

[0012] Furthermore, the elastic support assembly also includes a second spring, two ends of which are respectively against the side wall of the first groove and the side wall of the manhole cover.

[0013] Furthermore, two second sliding grooves extending along the length direction of the base are provided on the side wall of the first groove away from the manhole cover, and second sliding rods are slidably connected in the two second sliding grooves. One end of the two second sliding rods is fixedly connected to the side of the manhole cover, and the second spring is sleeved on the second sliding rod.

[0014] Furthermore, the top surface of the lifting plate is fixedly connected to a first connecting plate, and the second connecting plate and the third connecting plate are hinged on both sides of the first connecting plate respectively. When the first spring is in a naturally expanded state, the bottom edges of the second connecting plate and the third connecting plate are separated to both sides in an eight-shaped shape.

[0015] Furthermore, a third slide groove extending along the length direction of the base is formed on the side surface of the first groove, a slider is slidably connected in the third slide groove, and the slider is fixedly connected to the side wall of the manhole cover.

[0016] The beneficial effects of the utility model are:

[0017] The chute well mouth closing device moves the transport tool to the lifting plate or steps on the lifting plate. The lifting plate slides downward under pressure and compresses the elastic support component. The linkage component drives the well cover to slide to the left and exposes the through hole. The staff can pour the ore into the through hole, and the ore enters the chute well mouth under the action of gravity, completing the transfer of the ore. After the ore is poured, the transport tool or foot is moved to the outside of the lifting plate. The lifting plate slides upward under the thrust of the elastic support component. The linkage component drives the well cover to slide to the right, and the well cover covers the through hole. Compared with the prior art, the closing and opening operation of the chute well mouth is simpler and the work efficiency is improved.

[0018] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and research, or can be taught from the practice of the present invention to some extent. The objectives and other advantages of the present invention can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a partial structural schematic diagram of the utility model;

[0021] Figure 3 It is a schematic diagram of the structure of the utility model;

[0022] Figure 4 It is a partial structural schematic diagram of the utility model;

[0023] Figure 5 It is a partial structural schematic diagram of the utility model;

[0024] Figure 6 It is a top view of the utility model.

[0025] Figure 7 For this utility model Figure 6 Cross-sectional view at AA in the middle.

[0026] In the figure:

[0027] 1. base, 10. groove, 11. first groove, 12. second groove, 13. through hole, 14. first slide groove, 15. second slide groove, 16. third slide groove;

[0028] 21. manhole cover, 211. slider, 22. lifting plate, 23. first connecting rod, 24. second connecting rod, 25. third connecting rod;

[0029] 31. first spring, 32. first sliding rod, 33. second spring, 34. second sliding rod;

[0030] 41. A first connecting plate, 42. A second connecting plate, 43. A third connecting plate. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0034] In the above description of the utility model, it should be noted that the terms "one side", "the other side", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0035] In addition, the term "same" does not mean that the parts must be absolutely the same, but slight differences are allowed. The term "vertical" only means that the positional relationship between the parts is more vertical than "parallel", and does not mean that the structure must be completely vertical, but can be slightly tilted.

[0036] See also Figure 1-7The utility model provides a technical solution: a chute well mouth closing device, comprising a base 1 for closing the chute well mouth, the top surface of the base 1 is provided with a groove 10, the bottom of the groove 10 is provided with a through hole 13 connected with the chute well mouth, a manhole cover 21 and a lifting plate 22 are arranged in the groove 10, the manhole cover 21 is slidably fitted in the groove 10, the lifting plate 22 is located on one side of the manhole cover 21, a linkage component is arranged between the lifting plate 22 and the manhole cover 21, and the lifting plate 22 can drive the manhole cover 21 to slide through the linkage component when moving in the height direction; an elastic support component is arranged between the lifting plate 22 and the bottom of the groove 10, and when the elastic support component is in a free extension state, it pushes the lifting plate 22 to be in a high position state, in which the manhole cover 21 covers the through hole 13.

[0037] In this solution, the chute is used to transport ore, the base 1 is buried at the chute mouth, and the top surface of the base 1 is flush with the ground near the chute. The manhole cover 21 slides along the length direction of the base 1, and the lifting plate 22 slides along the height direction of the base 1. When the elastic support component is in a compressed state, the lifting plate 22 is pulled to a low position, in which state the through hole 13 is exposed.

[0038] First, this solution is in idle state. Figure 1-2 As shown in the figure, the lifting plate 22 is in a high position, in which the manhole cover 21 covers the through hole 13. The staff first transports the ore to the vicinity of the chute, and then moves the transportation tool to the lifting plate 22 or steps on the lifting plate 22. Under the pressure, the lifting plate 22 slides downward and compresses the elastic support component. The linkage component drives the manhole cover 21 to slide to the left, and the through hole 13 is exposed. Figure 3-4 The staff can pour the ore into the through hole 13, and the ore enters the chute well mouth under the action of gravity, thus completing the transportation of the ore.

[0039] After the ore is poured, the transport tool or foot is moved to the outside of the lifting plate 22. The lifting plate 22 slides upward under the thrust of the elastic support assembly, and the linkage assembly drives the manhole cover 21 to slide to the right. The manhole cover 21 covers the through hole 13. Figure 1-2 shown.

[0040] In this embodiment: the groove 10 includes a first groove 11 extending along the length direction of the base 1 and a second groove 12 extending along the height direction of the base 1, the manhole cover 21 is slidably connected in the first groove 11, and the lifting plate 22 is slidably connected in the second groove 12; the linkage assembly includes first connecting rods 23 respectively fixedly connected to both sides of the manhole cover 21, and the ends of the two first connecting rods 23 away from the manhole cover 21 are rotatably connected to the second connecting rods 24, and the ends of the two second connecting rods 24 away from the first connecting rods 23 are rotatably connected to both sides of the lifting plate 22.

[0041] In this solution, the first groove 11 is located in the base 1, the second groove 12 extends to the top surface of the base 1, and the first groove 11 and the second groove 12 are connected to form a T-shape. The first connecting rod 23 and the second connecting rod 24 are connected by a rotating shaft.

[0042] First, this solution is in idle state. Figure 1-2 As shown in the figure, the lifting plate 22 is in a high position, in which the manhole cover 21 covers the through hole 13. The staff first transports the ore to the vicinity of the chute well mouth, and then moves the transportation tool to the lifting plate 22 or steps on the lifting plate 22. Under the pressure, the lifting plate 22 slides downward, compresses the elastic support component, drives the second connecting rod 24 to rotate, and pushes the first connecting rod 23 and the manhole cover 21 to slide to the left, and reveals the through hole 13. Figure 3-4 The staff can pour the ore into the through hole 13, and the ore enters the chute well mouth under the action of gravity, thus completing the transportation of the ore.

[0043] After the ore is poured, the transport tool or foot is moved outside the lifting plate 22. The lifting plate 22 slides upward under the thrust of the elastic support assembly. During the upward sliding process of the lifting plate 22, the second connecting rod 24 is driven to rotate, and the first connecting rod 23 and the manhole cover 21 are pulled to slide to the right. After the manhole cover 21 covers the through hole 13, Figure 1-2 shown.

[0044] In this embodiment: a third connecting rod 25 is provided between the first connecting rod 23 and the second connecting rod 24 , and both ends of the third connecting rod 25 are rotatably connected to one end of the first connecting rod 23 away from the manhole cover 21 and one end of the second connecting rod 24 away from the lifting plate 22 .

[0045] By arranging the third connecting rod 25 between the first connecting rod 23 and the second connecting rod 24 , the sliding distance of the manhole cover 21 along the length direction of the base 1 can be extended, and the height difference between the lifting plate 22 and the top surface of the base 1 can be shortened.

[0046] In this embodiment, the elastic support assembly includes a first spring 31 , and two ends of the first spring 31 are respectively against the bottom surface of the second groove 12 and the bottom surface of the lifting plate 22 .

[0047] In this solution: the elastic support component can also use a hydraulic cylinder, because the cost of the spring is lower and it is preferred over the spring to meet the usage requirements.

[0048] By arranging the first spring 31 between the bottom surface of the second groove 12 and the bottom surface of the lifting plate 22, the first spring 31 is in a freely extended state, so that the lifting plate 22 is kept in a high position, and the linkage assembly pulls the manhole cover 21 to cover the through hole 13. When the first spring 31 is in a compressed state, the lifting plate 22 is kept in a low position, and the linkage assembly pushes the manhole cover 21 to expose the through hole 13.

[0049] In this embodiment: two first sliding grooves 14 extending along the height direction of the base 1 are provided on the bottom surface of the second groove 12, and first sliding rods 32 are slidably connected in the two first sliding grooves 14, and one end of the two first sliding rods 32 is fixedly connected to the bottom surface of the lifting plate 22, and the first spring 31 is sleeved on the first sliding rod 32.

[0050] By providing two first slide grooves 14 extending along the height direction of the base 1 on the bottom surface of the second groove 12, the first slide grooves 14 are slidably connected to the first sliding rod 32, and the first spring 31 is sleeved on the first sliding rod 32. The lifting plate 22 can slide accurately and smoothly along the height direction of the base 1.

[0051] In this embodiment, the elastic support assembly further includes a second spring 33 , and two ends of the second spring 33 are respectively against the side wall of the first groove 11 and the side wall of the well cover 21 .

[0052] By arranging the second spring 33 on the side wall of the first groove 11 and the side wall of the manhole cover 21, the lifting plate 22 is kept in a high position when the second spring 33 is freely extended, and the manhole cover 21 covers the through hole 13. When the second spring 33 is compressed, the lifting plate 22 is kept in a low position, and the manhole cover 21 is exposed from the through hole 13, thereby sharing the force of the first spring 31 and achieving a better elastic support effect.

[0053] In this embodiment: two second sliding grooves 15 extending along the length direction of the base 1 are provided on the side wall of the first groove 11 away from the manhole cover 21, and second sliding rods 34 are slidably connected in the two second sliding grooves 15, and one end of the two second sliding rods 34 is fixedly connected to the side of the manhole cover 21, and the second spring 33 is sleeved on the second sliding rod 34.

[0054] Two second slide grooves 15 extending along the length direction of the base 1 are provided on the side wall of the first groove 11 away from the manhole cover 21, and a second sliding rod 34 is slidably connected in the second slide groove 15, and the second spring 33 is sleeved on the second sliding rod 34. The manhole cover 21 can slide accurately and smoothly along the length direction of the base 1.

[0055] In this embodiment: the top surface of the lifting plate 22 is fixedly connected to the first connecting plate 41, and the second connecting plate 42 and the third connecting plate 43 are hinged on both sides of the first connecting plate 41 respectively. When the first spring 31 is in a naturally expanded state, the bottom edges of the second connecting plate 42 and the third connecting plate 43 are separated to both sides in an eight-shaped shape.

[0056] In this embodiment, the first spring 31 is in a compressed state, and the bottom edges of the second connecting plate 42 and the third connecting plate 43 are separated to both sides in a straight line and fit with the top surface of the base 1 .

[0057] By arranging the first connecting plate 41, the second connecting plate 42 and the third connecting plate 43 on the top surface of the lifting plate 22, it is more convenient to move the transport tool onto the lifting plate 22 or to prevent the person from tripping when stepping on the lifting plate 22.

[0058] In this embodiment: a third slide groove 16 extending along the length direction of the base 1 is opened on the side of the first groove 11 , and a slider 211 is slidably connected in the third slide groove 16 , and the slider 211 is fixedly connected to the side wall of the manhole cover 21 .

[0059] By opening a third sliding groove 16 extending along the length direction of the base 1 on the side of the first groove 11, the manhole cover 21 is slidably connected in the first groove 11 through a slider 211, so that the manhole cover 21 can slide more accurately and smoothly along the length direction of the base 1.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A chute wellhead closing device, comprising a base (1) for closing a chute wellhead, characterized in that: The top surface of the base (1) is provided with a groove (10), the bottom of the groove (10) is provided with a through hole (13) connected to the well mouth, a manhole cover (21) and a lifting plate (22) are arranged in the groove (10), the manhole cover (21) is slidably fitted in the groove (10), the lifting plate (22) is located on one side of the manhole cover (21), a linkage assembly is arranged between the lifting plate (22) and the manhole cover (21), and when the lifting plate (22) moves in the height direction, it can drive the manhole cover (21) to slide through the linkage assembly; An elastic support component is provided between the lifting plate (22) and the bottom of the groove (10); when the elastic support component is in a freely extended state, it pushes the lifting plate (22) to a high position, in which state the manhole cover (21) covers the through hole (13).

2. The chute wellhead sealing device according to claim 1, characterized in that: The groove (10) comprises a first groove (11) extending along the length direction of the base (1) and a second groove (12) extending along the height direction of the base (1); the manhole cover (21) is slidably connected in the first groove (11), and the lifting plate (22) is slidably connected in the second groove (12); The linkage assembly comprises first connecting rods (23) respectively fixedly connected to both sides of the manhole cover (21); one end of the two first connecting rods (23) away from the manhole cover (21) is rotatably connected to the second connecting rod (24); and one end of the two second connecting rods (24) away from the first connecting rod (23) is rotatably connected to both sides of the lifting plate (22).

3. The chute wellhead sealing device according to claim 2, characterized in that: A third connecting rod (25) is provided between the first connecting rod (23) and the second connecting rod (24), and two ends of the third connecting rod (25) are rotatably connected to an end of the first connecting rod (23) away from the manhole cover (21) and an end of the second connecting rod (24) away from the lifting plate (22), respectively.

4. The chute wellhead sealing device according to claim 2, characterized in that: The elastic support assembly comprises a first spring (31), and two ends of the first spring (31) respectively abut against the bottom surface of the second groove (12) and the bottom surface of the lifting plate (22).

5. The chute wellhead sealing device according to claim 4, characterized in that: The bottom surface of the second groove (12) is provided with two first sliding grooves (14) extending in the height direction of the base (1), and the two first sliding grooves (14) are slidably connected with first sliding rods (32), one end of the two first sliding rods (32) is fixedly connected to the bottom surface of the lifting plate (22), and the first spring (31) is sleeved on the first sliding rod (32).

6. The chute wellhead sealing device according to claim 5, characterized in that: The elastic support assembly also includes a second spring (33), the two ends of which are respectively against the side wall of the first groove (11) and the side wall of the manhole cover (21).

7. The chute wellhead sealing device according to claim 6, characterized in that: Two second slide grooves (15) extending along the length direction of the base (1) are provided on the side wall of the first groove (11) away from the manhole cover (21), and second sliding rods (34) are slidably connected in the two second slide grooves (15), one end of the two second sliding rods (34) are fixedly connected to the side of the manhole cover (21), and the second spring (33) is sleeved on the second sliding rod (34).

8. The chute wellhead sealing device according to claim 7, characterized in that: The top surface of the lifting plate (22) is fixedly connected to a first connecting plate (41), and the two sides of the first connecting plate (41) are respectively hinged to a second connecting plate (42) and a third connecting plate (43), and when the first spring (31) is in a naturally expanded state, the bottom edges of the second connecting plate (42) and the third connecting plate (43) are separated to both sides to form an eight-shaped shape.

9. The chute wellhead sealing device according to claim 2, characterized in that: A third sliding groove (16) extending along the length direction of the base (1) is provided on the side surface of the first groove (11), a sliding block (211) is slidably connected in the third sliding groove (16), and the sliding block (211) is fixedly connected to the side wall of the manhole cover (21).

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