Mine derrick steel structure protection device

Abstract

The utility model discloses a protection device for a mine derrick steel structure. The protection device comprises a mine derrick arranged at the top of a stratum. The protection structure comprises a fixing plate attached to the side wall of the well mouth, protection plates capable of covering the well mouth are symmetrically and rotationally arranged on the inner side of the fixing plate, one end of each protection plate is hinged to the fixing plate, and a traction rope is arranged at the other end, close to one side of the well mouth, of each protection plate; a first fixing rod and a second fixing rod are further arranged at the top of the stratum, and when the lantern ring is arranged on the first fixing rod in a sleeving mode, the protection plate covers the well mouth. When the lantern ring is arranged on the second fixing rod in a sleeving mode, the well mouth is opened through the protection plate. Through cooperation of the two protection plates which are symmetrically and movably arranged, rapid closing and rapid opening of the well mouth can be achieved, and therefore the well mouth can be opened for operation or temporarily closed to protect underground workers according to actual requirements; a protection structure does not need to be additionally installed after the mine steel derrick is installed, and operation is easy and fast.

Description

Technical Field

[0001] The utility model belongs to the technical field of mine derricks, and particularly relates to a steel structure protection device for mine derricks. Background Art

[0002] A mine steel derrick belongs to a special space structure, and its structural form is a steel structure space tower for placing a crown block and suspending devices such as a traveling block, a hook, a lifting ring, and a lifting clamp.

[0003] In the prior art, a mine steel derrick often does not have a protection structure, and the wellhead where the mine steel derrick is installed is still open. When workers carry out operations such as maintenance, inspection, or construction in the well, in order to prevent falling stones, sundries, or scattered objects from hurting the workers in the well, other devices need to be installed to close the wellhead, which is cumbersome to operate. Summary of the Utility Model

[0004] In view of the problems in the prior art, the utility model proposes the following technical solutions:

[0005] The utility model provides a steel structure protection device for a mine derrick, including:

[0006] A mine derrick arranged at the top of the formation;

[0007] A protection structure, the protection structure includes a fixing plate attached to the side wall of the wellhead, and symmetrically rotatably arranged on the inner side of the fixing plate are protection plates that can cover the wellhead. One end of the protection plate is hinged to the fixing plate, and on the other end of the protection plate and near the wellhead side is arranged a traction rope, and the other end of the traction rope extends outside the mine and is provided with a collar;

[0008] On the top of the formation are also arranged a first fixing rod and a second fixing rod. When the collar is sleeved on the first fixing rod, the protection plate covers the wellhead; when the collar is sleeved on the second fixing rod, the protection plate opens the wellhead.

[0009] As a preference of the above technical solution, the distances between the first fixing rod and the second fixing rod and the wellhead are different, and the first fixing rod is closer to the wellhead than the second fixing rod.

[0010] As a preference of the above technical solution, it further includes a third fixing rod, and the position where the third fixing rod is arranged is farther from the wellhead than the first fixing rod and closer to the wellhead than the second fixing rod.

[0011] As a preference of the above technical solution, a pin shaft is rotatably arranged on the fixing plate, and one end of the protection plate close to the fixing plate is installed on the pin shaft.

[0012] Preferably, as the above technical solution, an installation part extending to the outside of the mine is provided at the top of the fixing plate, and the first fixing rod, the second fixing rod and the third fixing rod are all vertically arranged on the installation part.

[0013] Preferably, as the above technical solution, a stop block is also horizontally arranged at the bottom end of the fixing plate.

[0014] The beneficial effects of the present utility model are as follows:

[0015] Through the cooperation of two symmetrically and movably arranged protection plates, the present utility model can quickly close and quickly open the wellhead, so that according to actual needs, the wellhead can be opened for operation or temporarily closed to protect the underground workers; there is no need to separately install a protection structure after installing the mine steel derrick, and the operation is simple and fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The figure shows a front view schematic diagram of the derrick protection device in the embodiment;

[0017] Figure 2 The figure shows Figure 1 an enlarged schematic diagram of the structure at A in

[0018] Reference numerals: 1, formation; 2, mine derrick; 11, fixing plate; 12, protection plate; 13, towing rope; 14, collar; 15, first fixing rod; 16, second fixing rod; 17, third fixing rod; 18, pin shaft; 19, stop block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below in conjunction with the embodiments.

[0020] Embodiment

[0021] As shown in Figure 1 , Figure 2 the figure shows a front view schematic diagram of the derrick protection device in the embodiment; Figure 1 The figure shows Figure 2 an enlarged schematic diagram of the structure at A in Figure 1 ;

[0022] This device includes:

[0023] A mine derrick 2 arranged at the top of the formation 1;

[0024] Protective structure, the protective structure includes a fixing plate 11 fittingly arranged at the side wall of the wellhead. Symmetrically and rotatably arranged inside the fixing plate 11 are protective plates 12 that can cover the wellhead. One end of the protective plate 12 is hinged to the fixing plate 11, and on the other end of the protective plate 12 and on the side close to the wellhead, a towing rope 13 is arranged. The other end of the towing rope 13 extends outside the mine and is provided with a collar 14;

[0025] On the top of the formation 1, there are also a first fixing rod 15 and a second fixing rod 16. When the collar 14 is sleeved on the first fixing rod 15, the protective plate 12 covers the wellhead; when the collar 14 is sleeved on the second fixing rod 16, the protective plate 12 opens the wellhead.

[0026] The shapes of the fixing plate 11 and the protective plate 12 both match the shape of the mine wellhead. Through the cooperation of the two symmetrically and movably arranged protective plates 12, the wellhead can be quickly closed and quickly opened, so that according to actual needs, the wellhead can be opened for operation or temporarily closed to protect the underground workers; there is no need to install a protective structure separately after installing the mine steel wellhead, and the operation is simple and fast.

[0027] The towing rope 13 plays a role in changing the position state of the protective plate 12. Specifically, on the protective plate 12, there is an installation loop for connecting the towing rope 13, and one end of the towing rope 13 is firmly tied to the installation loop;

[0028] The first fixing rod 15 and the second fixing rod 16 are set at different positions and have different distances from the wellhead. The first fixing rod 15 is closer to the wellhead. Both the first fixing rod 15 and the second fixing rod 16 match the collar 14, and the collar 14 can be smoothly sleeved on the first fixing rod 15 or the second fixing rod 16 to fix the end of the towing rope 13; when the collar 14 is sleeved on the first fixing rod 15, the protective plate 12 is in a horizontal state, and the two protective plates 12 are spliced to temporarily seal the wellhead; when the collar 14 is sleeved on the second fixing rod 16, since the second fixing rod 16 is farther from the wellhead, the towing rope 13 pulls the end of the protective plate 12 to gradually lift until it is in a vertical state, and at this time the wellhead is in an open state.

[0029] As Figure 1 、 Figure 2 shown, Figure 1 What is shown is the front view schematic diagram of the derrick protection device in the embodiment; Figure 2 What is shown is Figure 1 the enlarged schematic diagram of the structure at point A in

[0030] It also includes a third fixing rod 17. When the collar 14 is sleeved on the third fixing rod 17, the protective plate 12 is in an inclined state and does not completely close the wellhead.

[0031] The installation position of the third fixed rod 17 is farther from the wellhead than that of the first fixed rod 15 and closer to the wellhead than that of the second fixed rod 16, so that the protective plate 12 is in an inclined state between vertical and horizontal. At this time, a certain-sized opening is formed between the two protective plates 12, and the opening can allow the hanging claws on the mine derrick 2 to pass through. While the hanging claws are working, the inclined protective plate 12 can also play a certain role in preventing gravel from falling into the well.

[0032] A pin shaft 18 is rotatably arranged on the fixing plate 11. One end of the protective plate 12 close to the fixing plate 11 is installed on the pin shaft 18, and the protective plate 12 drives the pin shaft 18 to rotate to change the state of the protective plate 12. The pin shaft 18 realizes the rotational installation of the protective plate 12.

[0033] An installation part extending to the outside of the mine shaft is arranged at the top end of the fixing plate 11. The first fixed rod 15, the second fixed rod 16, and the third fixed rod 17 are all vertically arranged on the installation part. The installation part is fixed to the top of the formation 1, and the connection between the installation part and the plate body in the wellhead is set to be in an arc-shaped transition to reduce the wear generated when the traction rope 13 pulls the protective plate 12.

[0034] A stop block 19 is also horizontally arranged at the bottom end of the fixing plate 11. When the protective plate 12 is in a horizontal state, it fits with the stop block 19. When the protective plate 12 is in a horizontal state, the set stop block 19 can increase the bearing capacity of the protective plate 12. If stones or the like fall, the protective plate 12 and the stop block 19 together play a blocking role.

[0035] Working principle: When the device is in use, the protective plate 12 is pulled by holding and tightening or releasing the traction rope 13 to change its installation state, and the wellhead is opened or temporarily closed according to the actual situation: When holding the traction rope 13 and sleeving the collar 14 on the first fixed rod 15, the protective plate 12 is in a horizontal state, and the two protective plates 12 are spliced to temporarily close the wellhead and play a protective role; When holding the traction rope 13 and sleeving the collar 14 on the second fixed rod 16, since the second fixed rod 16 is farther from the wellhead, the traction rope 13 pulls the end of the protective plate 12 to be gradually lifted to a vertical state, and at this time the wellhead is in an open state.

[0036] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it.

Claims

1. A mine derrick steel structure protection device, characterized in that: include: A mine headframe (2) disposed on the top of the stratum (1); A protective structure, the protective structure comprising a fixed plate (11) fitted on the side wall of a wellhead, a protective plate (12) capable of covering the wellhead being symmetrically rotated and arranged on the inner side of the fixed plate (11), one end of the protective plate (12) being hinged to the fixed plate (11), a traction rope (13) being arranged at the other end of the protective plate (12) and close to the wellhead, the other end of the traction rope (13) extending outside the mine and being provided with a collar (14); A fixing rod 1 (15) and a fixing rod 2 (16) are also provided at the top of the stratum (1); when the collar (14) is sleeved on the fixing rod 1 (15), the protection plate (12) covers the wellhead; when the collar (14) is sleeved on the fixing rod 2 (16), the protection plate (12) opens the wellhead.

2. The mine derrick steel structure protection device according to claim 1 is characterized in that: The distances between the fixing rod 1 (15) and the fixing rod 2 (16) and the wellhead are different, and the fixing rod 1 (15) is closer to the wellhead than the fixing rod 2 (16).

3. The mine derrick steel structure protection device according to claim 2 is characterized in that: It also includes a fixing rod three (17), wherein the setting position of the fixing rod three (17) is farther from the wellhead than the fixing rod one (15) and closer to the wellhead than the fixing rod two (16).

4. The mine derrick steel structure protection device according to claim 1 is characterized in that: A pin shaft (18) is rotatably arranged on the fixing plate (11), and one end of the protection plate (12) close to the fixing plate (11) is mounted on the pin shaft (18).

5. The mine derrick steel structure protection device according to claim 3 is characterized in that: The top of the fixing plate (11) is provided with a mounting portion extending to the outside of the mine, and the fixing rod 1 (15), the fixing rod 2 (16) and the fixing rod 3 (17) are all vertically arranged on the mounting portion.

6. The mine derrick steel structure protection device according to claim 1 is characterized in that: A stopper (19) is also horizontally arranged at the bottom end of the fixing plate (11).

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