CN214383639U - Well head emergency exit system of mine shaft - Google Patents

Abstract

The utility model relates to a well head emergency exit system of mine shaft, this well head emergency exit system includes the outer door, the inner door, locking mechanism, the cage, detecting element and controller, outer door and inner door all are used for setting up in the open end department of the well head of mine shaft, in order to be used for exposing or the open end of shutoff, and the inner door sets up in the inboard of outer door, locking mechanism is used for locking so that the outer door keeps the state of the open end of shutoff to the outer door, the cage is used for following and sets up in mine shaft with upper and lower direction movablely, detecting element and controller electricity are connected, detecting element is used for detecting whether the cage is in the locking position of well head department, the controller is used for: and when the detection unit detects that the cage is at the locking position, controlling the locking mechanism to release the locking of the outer door. This well head emergency exit system can improve factor of safety effectively, avoids causing personnel's injury. In addition, the outer door can be automatically opened without the need of an operator to open the outer door, and the automation degree is high.

Description

Well head emergency exit system of mine shaft

Technical Field

The utility model relates to a mining equipment technical field specifically, relates to a well head emergency exit system of mine shaft.

Background

The mine shaft is lifted by a general multipurpose vertical cage to transport people and transport materials, the people transport the people to go up and down the well from the cage according to the number of people, one type of the materials is to transport materials for underground production such as wood and steel materials from the well to the underground when transporting the materials, and the other type of the materials is that ores and waste rocks extracted from the underground need to be transported to the well by a mine car through the cage. The mine wellhead position is used as an important position for lifting people and materials, nearly thousands of lifting operations are required every day, and the safety problem of the cage door is the most important in the operation.

The traditional mine wellhead cage safety device generally only has one layer of pull-open type safety door, firstly, because the pull-open type safety door is not a full-automatic device, when a person operates the pull-open type safety door, the person sometimes does not wait for the cage to stop stably and then operates the pull-open type safety door, and the habit of opening the safety door in advance exists, so that potential safety hazards are caused; secondly, when reasons such as electromagnetic switch became invalid, probably lead to the emergency exit to open automatically, open the back well head and directly expose at the earth's surface, personnel have the mistake and go into probably, have certain potential safety hazard.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a well head emergency exit system of mine shaft, this well head emergency exit system can improve factor of safety effectively, avoids personnel to receive the injury.

In order to achieve the above object, the present disclosure provides a wellhead safety door system of a mine shaft, the wellhead safety door system including an outer door, an inner door, a locking mechanism, a cage, a detection unit and a controller, the outer door and the inner door are both configured to be disposed at an open end of the wellhead for exposing or blocking the open end, the inner door is disposed inside the outer door, the locking mechanism is configured to lock the outer door so that the outer door maintains a state of blocking the open end, the cage is configured to be movably disposed in the mine shaft in an up-down direction, the detection unit is electrically connected to the controller, the detection unit is configured to detect whether the cage is in a locked position at the wellhead, and the controller is configured to: and when the detection unit detects that the cage is located at the locking position, controlling the locking mechanism to release the locking of the outer door.

Optionally, the wellhead safety door system further includes a slide rail configured to be disposed at the wellhead and extend in an up-down direction, and the inner door is slidably disposed on the slide rail and has a first position exposing the open end and a second position blocking the open end.

Optionally, be provided with on the cage and be used for lifting the portion of lifting of interior door the in-process of cage upward movement, the portion of lifting can lift interior door edge slide rail upward movement, just the cage is in when the locking position, the portion of lifting lifts interior door motion extremely first position.

Optionally, the lifting portion is disposed on a top surface of the cage.

Optionally, the lifting part comprises a plurality of lifting claws, and the plurality of lifting claws are arranged at the edge of the top surface close to the inner door.

Optionally, the inner door structure is a frame structure, and the frame structure includes a first vertical rod, a second vertical rod and a plurality of connecting rods connected between the first vertical rod and the second vertical rod, the first vertical rod and the second vertical rod both extend along the up-down direction and slidably disposed on the sliding rail, the connecting rods extend along the horizontal direction, and the plurality of connecting rods are disposed along the up-down direction at intervals.

Optionally, the wellhead safety door system further comprises a safety fence configured as a U-shaped fence disposed at an outer periphery of the wellhead, an opening of the U-shaped fence is configured as the open end, and the outer door is disposed at the opening and rotatably connected to the U-shaped fence along an axis extending in a vertical direction;

locking mechanism includes electromagnetic switch, and this electromagnetic switch is including the first absorption piece and the second absorption piece that can attract each other, first absorption piece with one of second absorption piece set up in U-shaped rail, the other one set up in the outer door, the controller is used for: when the detection unit detects that the cage moves to the locking position, the electromagnetic switch is controlled to be powered off so that the first adsorption block and the second adsorption block are separated from each other.

Optionally, the wellhead safety door system further comprises a buffer structure, the buffer structure is arranged at the lower end of the inner door and used for being abutted to the transportation track at the wellhead.

Optionally, the buffer structure comprises buffer rubber, and the buffer rubber is configured as a cylinder structure, and the side wall of the cylinder structure is connected to the lower end of the inner door.

Optionally, the thickness of the barrel structure is between 20mm and 30 mm.

In the technical scheme, firstly, the inner door is arranged on the inner side of the outer door, and even if the outer door is automatically opened under the condition of failure, the inner door can also effectively plug the opening end of the wellhead, so that the mistaken entry of personnel is avoided, and the safety coefficient is improved; secondly, when the detecting element detects that the cage does not move to the locking position of well head department, the controller can control locking mechanism and keep the locking to the outer door, avoids operating personnel just to open the outer door before the cage does not stop steadily to target in place, further improves factor of safety, avoids causing personnel's injury. In addition, when the detection unit detects that the cage is located at the locking position, the controller can control the locking mechanism to release the locking of the outer door, namely the outer door can be automatically opened, an operator does not need to perform door opening operation on the outer door, and the automation degree is high.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

fig. 1 is a front view of a wellhead safety door system of a mine shaft according to one embodiment of the present disclosure;

fig. 2 is a side view of a wellhead safety door system of a mine shaft of one embodiment of the present disclosure.

Description of the reference numerals

1 outer door 2 inner door

21 first vertical bar 22 second vertical bar

23 connecting rod 3 buffer structure

10 wellhead 101 open end

102 slide rail 103 transport rail

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, where not otherwise stated, the use of the directional words such as "up and down" refers to the definition of up and down of the wellhead safety door system of the mine shaft of the present disclosure in normal use, as can be seen in particular in fig. 1; use of directional words such as "inner and outer" refers to the inner and outer of a particular structural profile; terms such as "first" and "second" are used merely to distinguish one element from another and are not sequential or significant.

As shown in fig. 1 and 2, the present disclosure provides a wellhead safety door system of a mine shaft, the wellhead safety door system including an outer door 1, an inner door 2, a locking mechanism (not shown), a cage (not shown), a detection unit (not shown), and a controller (not shown), the outer door 1 and the inner door 2 are both configured to be disposed at an open end 101 of a wellhead 10 of the mine shaft for exposing or blocking the open end 101, and the inner door 2 is disposed at an inner side of the outer door 1, the locking mechanism is configured to lock the outer door 1 so that the outer door 1 maintains a state of blocking the open end 101, the cage is configured to be disposed in the mine shaft movably in an up-down direction, the detection unit is electrically connected to the controller, the detection unit is configured to detect whether the cage is in a locked position at the wellhead 10, and the controller is configured to: and when the detection unit detects that the cage is at the locking position, controlling the locking mechanism to release the locking of the outer door 1.

In the technical scheme, firstly, the inner door 2 is arranged on the inner side of the outer door 1, and even if the outer door 1 is automatically opened under the condition of failure, the inner door 2 can effectively seal the open end 101 of the wellhead 10, so that the mistaken entry of personnel is avoided, and the safety factor is improved; secondly, when the detecting element detects that the cage does not move to the locking position of well head 10 department, the controller can control locking mechanism and keep the locking to outer door 1, avoids operating personnel just to open outer door 1 before the cage does not stop steadily to target in place, further improves factor of safety, avoids causing personnel's injury. In addition, when the detection unit detects that the cage is located at the locking position, the controller can control the locking mechanism to release the locking of the outer door 1, namely the outer door 1 can be automatically opened, an operator does not need to perform door opening operation on the outer door 1, and the automation degree is high.

In an embodiment, referring to fig. 2 and fig. 2, the wellhead safety system further comprises a sliding rail 102 for being disposed at the wellhead 10 and extending in the up-down direction, and the inner door 2 is slidably disposed on the sliding rail 102 and has a first position exposing the cooking end 10 and a second position blocking the open end 101.

In this embodiment, after the operator opens the outer door 1, the operator can operate the slide rail 102 extending along the up-down direction of the inner door 2 to move upward, so as to switch the inner door 2 from the second position at which the opening end 101 is blocked to the first position at which the opening end 101 is exposed, thereby opening the inner door 2. Simple structure, and the operating personnel of being convenient for operate.

Optionally, a lifting part (not shown) for lifting the inner door 2 is arranged on the cage, the lifting part can lift the inner door 2 to move upwards along the slide rail 102 in the process of the upward movement of the cage, and the lifting part lifts the inner door 2 to move to the first position when the cage is in the locking position.

Through set up the portion of lifting interior door 2 on the cage, at the in-process of cage upward movement, this portion of lifting can lift interior door 2 along slide rail 102 upward movement, and when the cage is in the locking position, lift the portion and can lift interior door 2 to the primary importance, and then utilize the characteristic of cage self upward movement to switch interior door 2 to the primary importance that exposes open end 101 from the second place of shutoff open end 101, need not operating personnel to operate. With the combination of the outer door 1 in the foregoing, it can be known from the foregoing that the controller can automatically open the outer door 1 when the cage is in the locking position, and here, when the cage is in the locking position, the lifting part located on the cage can also automatically open the inner door 2, so that the automatic opening of the outer door 1 and the inner door 2 is realized, the operation of opening the outer door 1 and the inner door 2 by an operator is not required, and the degree of automation is further improved.

In one embodiment, the lifting portion is provided on the top surface of the cage, thereby facilitating the lifting portion to lift the inner door 2.

Optionally, the lifting portion comprises a plurality of lifting claws (not shown) arranged at an edge of the top surface close to the inner door 2. Through setting up a plurality of claws of lifting with this portion of lifting, can improve the stability of lifting portion to door 2 lift effectively. However, the present disclosure does not limit the specific structure of the lifting unit, and the inner door 2 can be effectively lifted.

Illustratively, referring to fig. 1, the inner door 2 is configured as a frame structure, the frame structure includes a first vertical rod 21, a second vertical rod 22, and a plurality of connecting rods 23 connected between the first vertical rod 21 and the second vertical rod 22, the first vertical rod 21 and the second vertical rod 22 both extend along an up-down direction and are slidably disposed on the sliding rail 102, the connecting rods 23 extend along a horizontal direction, and the plurality of connecting rods 23 are spaced along the up-down direction. By configuring the inner door 2 as the frame structure, the use of materials can be effectively reduced while the stability of the inner door 2 is improved, and the manufacturing cost can be effectively reduced.

Optionally, the wellhead safety door system further comprises a safety fence (not shown), the safety fence is configured as a U-shaped fence, the U-shaped fence is arranged on the outer periphery of the wellhead 10, the opening of the U-shaped fence is configured as an open end 101, and the outer door 1 is arranged at the opening and is rotatably connected to the U-shaped fence along an axis extending in the up-down direction; locking mechanism includes electromagnetic switch, and this electromagnetic switch adsorbs the piece including first absorption piece and the second that can attract each other, and first absorption piece and second adsorb one of piece and set up in U-shaped rail, and another one sets up in outer door 1, and the controller is used for: when the detection unit detects that the cage moves to the locking position, the electromagnetic switch is controlled to be powered off so that the first adsorption block and the second adsorption block are separated from each other. The electromagnetic switch is operated quickly and has high safety.

In addition, the electromagnetic switch may be provided with a control valve (not shown) alone, and an operator may control the control valve to energize or de-energize the electromagnetic switch, thereby locking or unlocking the outer door 1.

Referring to fig. 1, the wellhead safety door system may further comprise a buffer structure 3, the buffer structure 3 being provided at a lower end of the inner door 2 for abutment with the transportation rail 103 at the wellhead 10. It should be noted that, during the downward movement of the cage to release the above-mentioned locking position, the inner door 2 will also move downward with the cage, until the inner door 2 moves to the second position for blocking the open end 101, the inner door 2 does not move any more, and does not need to be operated by the operator; while the cage continues to move downwardly within the shaft. Cage downstream's speed is generally very fast, and then interior door 2 is also very fast along its downstream's speed, sets up buffer structure 3 through the lower extreme at interior door 2, can reduce interior door 2 effectively to the impact of the transportation track 103 of well head 10 department, avoids causing the harm to interior door 2 or transportation track 103.

Alternatively, the buffer structure 3 includes buffer rubber constructed in a cylindrical structure, a sidewall of which is connected to a lower end of the inner door 2. The buffer structure 3 is made of buffer rubber, so that the impact of the inner door 2 on the transportation track 103 can be effectively reduced, and the damage to the inner door and the transportation track can be reduced; in addition, by providing the cushion rubber with a cylindrical structure, the cylindrical structure can be sufficiently deformed at the time of collision, and the impact of the inner door 2 on the transportation rail 103 is further reduced, and the damage to both is further reduced.

Optionally, the thickness of the cylinder structure is between 20mm and 30mm, so that the buffer structure 3 is prevented from being too heavy while a good buffer effect is ensured.

However, the present disclosure does not limit the specific material and shape of the cushion structure 3, and a good cushion effect can be obtained.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims (10)

1. A wellhead safety door system of a mine shaft, characterized in that the wellhead safety door system comprises an outer door (1), an inner door (2), a locking mechanism, a cage, a detection unit and a controller, wherein the outer door (1) and the inner door (2) are both used for being arranged at an open end (101) of the wellhead (10) for exposing or blocking the open end (101), the inner door (2) is arranged at the inner side of the outer door (1), the locking mechanism is used for locking the outer door (1) to enable the outer door (1) to keep a state of blocking the open end (101), the cage is used for being movably arranged in the mine shaft along the up-down direction, the detection unit is electrically connected with the controller, the detection unit is used for detecting whether the cage is in a locking position at the wellhead (10), the controller is configured to: and when the detection unit detects that the cage is at the locking position, controlling the locking mechanism to release the locking of the outer door (1).

2. A wellhead safety door system for a mining shaft according to claim 1, characterised in that the wellhead safety door system further comprises a slide rail (102) for being provided at the wellhead (10) and extending in an up-down direction, the inner door (2) being slidably provided on the slide rail (102) and having a first position exposing the open end (101) and a second position blocking the open end (101).

3. A wellhead safety door system for a mine shaft according to claim 2, characterised in that a lifting part is provided on the cage for lifting the inner door (2), the lifting part being capable of lifting the inner door (2) upwards along the slide (102) during the upwards movement of the cage, and lifting the inner door (2) to the first position when the cage is in the locked position.

4. A wellhead safety door system for a mining shaft as claimed in claim 3, wherein the lifting portion is provided on the top surface of the cage.

5. A wellhead safety door system for a mining shaft as claimed in claim 4, characterised in that the lifting portion comprises a plurality of lifting dogs provided at the edge of the top face adjacent the inner door (2).

6. A wellhead safety door system for a mining shaft according to any of claims 2 to 5, characterised in that the inner door (2) is constructed as a frame structure comprising a first vertical rod (21), a second vertical rod (22) and a plurality of connecting rods (23) connected between the first vertical rod (21) and the second vertical rod (22), the first vertical rod (21) and the second vertical rod (22) each extending in a vertical direction and being slidably arranged on the slide rail (102), the connecting rods (23) extending in a horizontal direction and the plurality of connecting rods (23) being arranged at intervals in the vertical direction.

7. A wellhead safety door system for a mining shaft according to any of claims 1 to 5, characterised in that it further comprises a safety rail configured as a U-shaped rail provided at the outer periphery of the shaft (10) and having its opening configured as the open end (101), the outer door (1) being provided at the opening and being rotatably connected to the U-shaped rail along an axis extending in the up-down direction;

locking mechanism includes electromagnetic switch, and this electromagnetic switch is including the first absorption piece and the second absorption piece that can mutual actuation, first absorption piece with one of second absorption piece set up in U-shaped rail, the other set up in outer door (1), the controller is used for: when the detection unit detects that the cage moves to the locking position, the electromagnetic switch is controlled to be powered off so that the first adsorption block and the second adsorption block are separated from each other.

8. A wellhead safety door system for a mining shaft according to any of claims 1 to 5 characterised in that the system further comprises a bumper structure (3), the bumper structure (3) being provided at the lower end of the inner door (2) for abutment with a transport track (103) at the wellhead (10).

9. A wellhead safety door system for a mining shaft according to claim 8 characterised in that the buffer structure (3) comprises a buffer rubber constructed as a cylinder with side walls connected to the lower end of the inner door (2).

10. A wellhead safety door system for a mining shaft as claimed in claim 9, in which the thickness of the barrel arrangement is between 20mm and 30 mm.

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