Isolation device and tunneling roadway system

Abstract

The utility model relates to an isolation device and a tunneling roadway system.The isolation device comprises an isolation door and a travel switch, the isolation door is used for being installed in a pedestrian passageway of a tunneling working face, the isolation door has an open state and a closed state, and in the closed state, the travel switch is connected with the isolation door; the isolation door divides the pedestrian passage into a first passage section and a second passage section which are not communicated with each other, and in the open state, the first passage section is communicated with the second passage section; the travel switch is arranged on the isolation door, the travel switch is used for being connected with an emergency stop control circuit of the tunneling equipment, the travel switch has a normally-closed state and a normally-open state, in the closed state, the travel switch is in the normally-closed state, in the open state, the travel switch is in the normally-open state, and in the open state, the travel switch is in the normally-closed state. And the emergency stop control circuit is switched on, so that the tunneling equipment is stopped. Therefore, personal injury accidents caused by personnel entering the area where the tunneling equipment is located are avoided.

Description

Technical Field

[0001] The present disclosure relates to the technical field of excavation working faces, and in particular, to an isolation device and an excavation tunnel system. Background Art

[0002] During the excavation of coal mines, personal injury accidents often occur due to personnel entering the equipment operation area during the operation of equipment such as tunnel boring machines, anchor boring machines or transfer machines. The current solution is to install hard isolation such as mechanical grilles on the pedestrian side of the tunnel. Often, due to inadequate supervision, personnel illegally enter the operation area during the operation of the working face equipment, and the tunnel boring machine driver cannot detect it in time while operating the equipment, causing accidents such as crushing and death of personnel. Utility Model Content

[0003] The purpose of the present disclosure is to provide an isolation device and a tunneling system to prevent personal injury accidents caused by personnel illegally entering the working area during the operation of the tunneling equipment.

[0004] In order to achieve the above-mentioned purpose, the present disclosure provides, on the one hand, an isolation device, which includes an isolation door and a travel switch, wherein the isolation door is used to be installed in a pedestrian passage of an excavation working face, and the isolation door has an open state and a closed state. In the closed state, the isolation door separates the pedestrian passage into a first channel section and a second channel section that are not connected to each other, and in the open state, the first channel section and the second channel section are connected; the travel switch is arranged on the isolation door, and the travel switch is used to be connected to an emergency stop control circuit of an excavation equipment, and the travel switch has a normally closed state and a normally open state. In the closed state, the travel switch is in a normally closed state, and in the open state, the travel switch is in a normally open state, so as to turn on the emergency stop control circuit to shut down the excavation equipment.

[0005] Optionally, the isolation door includes a door body and a door post, and the door body is rotatably connected to the door post so that the isolation door can be switched between the closed state and the open state. The travel switch is arranged on the door post. When the isolation door is in the open state, the door body is crimped and triggers the travel switch to switch the travel switch from a normally closed state to a normally open state.

[0006] Optionally, the door body includes a first door body and a second door body, one end of the first door body in the length direction is rotatably connected to the door post, and the second door body is slidably connected to the other end of the first door body in the length direction, and the sliding direction of the second door body is parallel to the length direction of the first door body.

[0007] Optionally, at least two parallel first sliding holes are provided at one end of the first door body away from the door column, and the second door body has at least two parallel first sliding rods, and one axial end of each of the first sliding rods is slidably connected to the corresponding first sliding hole.

[0008] Optionally, a first connecting rod is fixedly connected between at least two of the first sliding rods, and multiple second connecting rods are slidably connected between the at least two first sliding rods. The multiple second connecting rods are arranged in sequence along the length direction of the first door body and are located between the first connecting rod and the first door body. The first door body, the multiple second connecting rods and the first connecting rod are connected with flexible constraints in sequence.

[0009] Optionally, collars are fixed to both ends of the second connecting rod, and the collars at both ends of the second connecting rod are respectively sleeved on the corresponding first sliding rod.

[0010] Optionally, a locking structure is provided between the first door body and the second door body, and the locking structure is used to fix the second door body to the first door body.

[0011] Optionally, the locking structure includes a latch, a first plug-in hole arranged on the first door body, and a plurality of second plug-in holes arranged on the first sliding rod, the first plug-in hole is radially arranged along the first sliding hole and connected to the first sliding hole, the plurality of second plug-in holes are axially spaced along the first sliding rod, and the latch is inserted into the first plug-in hole and any one of the second plug-in holes.

[0012] On the other hand, the present disclosure provides a tunneling system, which includes a tunneling tunnel, and tunneling equipment and conveying equipment both arranged in the tunneling tunnel, a pedestrian passage is formed between the conveying equipment and the tunneling tunnel, and the pedestrian passage is provided with the above-mentioned isolation device; the isolation door is used to separate the pedestrian passage into the first channel section and the second channel section, the tunneling equipment is located in the first channel section, the second channel section is connected to the entrance and exit of the tunneling tunnel, and the travel switch is connected to the emergency stop control circuit of the tunneling equipment.

[0013] Optionally, the conveying equipment is a bridge-type transfer machine, and the isolation door is fixed on the body of the bridge-type transfer machine.

[0014] Through the above technical solution, the isolation device is installed in the pedestrian passage of the excavation working face to divide the pedestrian passage into a first passage section and a second passage section. The first passage section can be the part connecting the entrance of the pedestrian passage, and the second passage section can be the part connecting the equipment operation area. When the isolation door is in a closed state, personnel cannot enter the second passage section from the first passage section. At this time, the travel switch is in a normally closed state, the travel switch does not conduct the emergency stop control circuit, and the equipment does not stop. When a person opens the isolation door to enter the second passage section, the isolation door acts on the travel switch during the opening process to switch the travel switch from the normally closed state to the normally open state. The opened travel switch can conduct the emergency stop control circuit, thereby stopping the excavation equipment. After the excavation equipment is stopped, on the one hand, the excavation equipment no longer works, which can avoid personal injury to personnel caused by the operation of the excavation equipment. On the other hand, the operator who controls the excavation equipment can also know that someone has entered the equipment operation area.

[0015] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0017] Figure 1 is a schematic diagram of the internal structure of a tunneling system provided by an exemplary embodiment of the present disclosure;

[0018] Figure 2 is a structural schematic diagram of an isolation device provided by an exemplary embodiment of the present disclosure (the second door body is in an extended state);

[0019] Figure 3 is a structural schematic diagram of an isolation device provided by an exemplary embodiment of the present disclosure (the second door body is in a retracted state);

[0020] Figure 4 is a structural schematic diagram of a locking structure provided by an exemplary embodiment of the present disclosure.

[0021] Description of Reference Numerals

[0022] 10-excavation tunnel; 11-excavation equipment; 12-transportation equipment; 13-pedestrian passage; 13a-first passage section; 13b-second passage section; 14-isolating device;

[0023] 100-isolation door; 101-door body; 102-door post; 103-support member; 110-first door body; 111-blocking rod; 112-third connecting rod; 113-first sliding hole; 114-abutting member; 120-second door body; 121-first sliding rod; 122-first connecting rod; 123-second connecting rod; 124-ring; 125-flexible constraint member; 130-locking structure; 131-first plug hole; 132-second plug hole; 133-latch pin;

[0024] 200-travel switch. DETAILED DESCRIPTION

[0025] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0026] In the description of the present disclosure, it should be understood that the terms "upper", "lower", etc., indicating the orientation or positional relationship, are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, and a specific orientation structure and operation, and therefore cannot be understood as a limitation of the present disclosure. In addition, the terms "inside and outside" refer to the inside and outside of the corresponding structural contour. In addition, the terms "first", "second", etc. are only used to distinguish one element from another element, and do not have order and importance.

[0027] In the description of the present disclosure, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "connected", and "installed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0028] During the coal mining operation, personal injury accidents may occur due to personnel entering the equipment operation area during the operation of equipment such as tunneling machines, anchor boring machines or transfer machines. In view of this, the present disclosure provides an isolation device 14 on one hand, which can prevent personnel from entering the equipment operation area and causing personal injury accidents.

[0029] like Figures 1 to 4As shown, the isolation device 14 includes an isolation door 100 and a travel switch 200. The isolation door 100 is used to be installed in the pedestrian passage 13 of the excavation working face. The isolation door 100 has an open state and a closed state. In the closed state, the isolation door 100 separates the pedestrian passage 13 into a first channel section 13a and a second channel section 13b that are not connected to each other. In the open state, the first channel section 13a and the second channel section 13b are connected; the travel switch 200 is arranged on the isolation door 100. The travel switch 200 is used to be connected to the emergency stop control circuit of the excavation equipment 11. The travel switch 200 has a normally closed state and a normally open state. In the closed state, the travel switch 200 is in a normally closed state. In the open state, the travel switch 200 is in a normally open state to turn on the emergency stop control circuit to shut down the excavation equipment 11.

[0030] Through the above scheme, the isolation device 14 is installed in the pedestrian passage of the excavation working face to divide the pedestrian passage into a first passage section 13a and a second passage section 13b. The first passage section 13a can be the part connected to the entrance of the pedestrian passage 13, and the second passage section 13b can be the part connected to the equipment operation area. When the isolation door 100 is in a closed state, personnel cannot enter the second passage section 13b from the first passage section 13a. At this time, the travel switch 200 is in a normally closed state, the travel switch 200 does not conduct the emergency stop control circuit, and the equipment does not stop. When a person opens the isolation door 100 and enters the second passage section 13b, the isolation door 100 acts on the travel switch 200 during the opening process, so that the travel switch 200 switches from the normally closed state to the normally open state. The opened travel switch 200 can conduct the emergency stop control circuit, thereby stopping the excavation equipment 11. After the tunneling equipment 11 is shut down, on the one hand, the tunneling equipment 11 no longer works, which can avoid personal injury to personnel caused by the operation of the tunneling equipment 11. On the other hand, the operator who controls the tunneling equipment 11 can also know that someone has entered the equipment operation area.

[0031] It should be noted that after the emergency shutdown of the excavation equipment 11, the operator needs to restart the excavation equipment 11 to put the excavation equipment 11 into operation again. The operator can restart the excavation equipment 11 after other personnel leave.

[0032] In some optional embodiments, the travel switch 200 is connected in parallel with the emergency stop control circuit. Specifically, the travel switch 200 can be connected in parallel with the emergency stop switch of the tunneling equipment 11, so that the travel switch 200 is connected in parallel with the emergency stop control circuit where the emergency stop switch is located. In this way, either the emergency stop switch or the travel switch 200 turns on the emergency stop control circuit, and both can control the tunneling equipment 11 to stop. Of course, in some optional embodiments, the travel switch 200 can also be connected in series in the emergency stop control circuit.

[0033] In some optional embodiments, the isolation door 100 includes a door body 101 and a door column 102. The door body 101 can be rotatably connected to the door column 102 so that the isolation door 100 can be switched between a closed state and an open state. The travel switch 200 is arranged on the door column 102. When the isolation door 100 is in the open state, the door body 101 presses and triggers the travel switch 200 to switch the travel switch 200 from a normally closed state to a normally open state.

[0034] The travel switch 200 is arranged on the door post 102. On the one hand, the position of the travel switch 200 is relatively fixed, and the state of the travel switch 200 can be switched during the rotation of the door body 101. On the other hand, the travel switch 200 and the isolation door 100 can be pre-assembled together, which is convenient for the transportation and installation of the isolation device 14.

[0035] Of course, in some other optional implementations, the travel switch 200 may also be fixed in other places, such as on the ground, wall or equipment on the excavation working face, and the present disclosure does not make specific limitations on this.

[0036] It should be noted that the manner in which the door body 101 is rotatably connected to the door post 102 is a prior art and is not specifically limited in the present disclosure.

[0037] In some optional embodiments, a support member 103 is fixed on the door post 102, and the travel switch 200 is fixed on the support member 103, so that the travel switch 200 is relatively fixed to the door post 102. An abutment member 114 is provided on the door body 101, and the abutment member 114 is used to abut against the contact of the travel switch 200.

[0038] Since the width of the pedestrian passage 13 of different excavation working faces may vary, in some pedestrian passages 13, the door body 101 may not be able to completely separate the travel passage, and a gap for people to pass through may be formed between the door body 101 and the side wall of the pedestrian passage 13, causing people to bypass the isolation device 14 and enter the second channel section 13b from the first channel section 13a, making the isolation device 14 ineffective.

[0039] In view of this, in some optional embodiments, the door body 101 includes a first door body 110 and a second door body 120, one end of the first door body 110 in the length direction is rotatably connected to the door column 102, and the second door body 120 is slidably connected to the other end of the first door body 110 in the length direction, and the sliding direction of the second door body 120 is parallel to the length direction of the first door body 110.

[0040] In this way, the second door body 120 is connected to the first door body 110, and when the first door body 110 rotates around the door post 102 to open and close, the second door body 120 will also rotate accordingly. The opening and closing function of the entire door body 101 is realized. At the same time, by controlling the extension and contraction of the second door body 120 along the length direction of the first door body 110, the length of the entire door body 101 can be adjusted to adapt to pedestrian passages 13 of different widths, thereby avoiding the situation where a person bypasses the isolation device 14 and enters the second passage section 13a from the first passage section 13b.

[0041] It should be pointed out that the width difference of the pedestrian passage 13 may be caused by the different widths of the pedestrian passages 13 in different lanes during design, or may be caused by the different degrees of local spalling in the same lane. The present disclosure does not make any specific restrictions on this.

[0042] Regarding the sliding connection structure between the second door body 120 and the first door body 110, in some optional embodiments, at least two parallel first sliding holes 113 are provided at one end of the first door body 110 away from the door column 102, and the second door body 120 has at least two parallel first sliding rods 121, and one axial end of each first sliding rod 121 is respectively slidably connected to the corresponding first sliding hole 113. By pulling the second door body 120 to make the first sliding rod 121 slide in the first sliding hole 113, the sliding of the second door body 120 relative to the first door body 110 is achieved.

[0043] Optionally, at least two first sliding bars 121 are arranged horizontally, and at least two first sliding bars 121 are arranged at intervals in the height direction, so that the first sliding bars 121 can form a barrier to block pedestrians from passing through, and prevent the first sliding bars 121 from interfering with the ground during the sliding process.

[0044] In some optional embodiments, a first connecting rod 122 is fixedly connected between at least two first sliding rods 121, and a plurality of second connecting rods 123 are slidably connected between at least two first sliding rods 121. The plurality of second connecting rods 123 are arranged in sequence along the length direction of the first door body 110 and are located between the first connecting rod 122 and the first door body 110. The first door body 110, the plurality of second connecting rods 123 and the first connecting rod 122 are connected in sequence with a flexible constraint 125.

[0045] The first connecting rod 122 is fixedly connected between the first sliding rods 121, so that all the first sliding rods 121 connected by the first connecting rod 122 can move synchronously, which makes it easier to extend or retract the second door body 120. A plurality of second connecting rods 123 are connected between the first connecting rod 122 and the first door body 110, and the first door body 110, the second connecting rod 123 and the first connecting rod 122 are connected by a social flexible constraint 125. During the extension of the second door body 120, the second connecting rod 123 is moved in sequence following the first connecting rod 122 through the flexible constraint 125, so that the second connecting rod 123 can separate the gap between the first door body 110 and the first connecting rod 122, thereby preventing people from passing through the gap between the first connecting rod 122 and the first door body 110. During the retraction of the second door body 120, the first connecting rod 122 can directly act on the second connecting rod 123, pushing the second connecting rod 123 to move in the direction of the first door body 110.

[0046] It should be noted that the flexible restraining member 125 includes but is not limited to a chain, a rope, etc. The present disclosure does not impose any specific limitation on this.

[0047] Regarding the sliding connection structure between the second connecting rod 123 and the first sliding rod 121, in some optional embodiments, collars 124 are respectively fixed to both ends of the second connecting rod 123, and the collars 124 at both ends of the second connecting rod 123 are respectively sleeved on the corresponding first sliding rod 121. The second connecting rod 123 can slide on the first sliding rod 121 through the relative sliding of the collars 124 and the first sliding rod 121.

[0048] Regarding the specific structure of the first door body 110 , in some optional embodiments, the first door body 110 includes at least two blocking rods 111 arranged in parallel and at least one third connecting rod 112 connected between the blocking rods 111 , and the first sliding hole 113 is opened in the blocking rod 111 .

[0049] like Figure 4 As shown, in order to fix the second door body 120 relative to the first door body 110 after being extended or retracted, in some optional embodiments, a locking structure 130 is provided between the first door body 110 and the second door body 120, and the locking structure 130 is used to fix the second door body 120 to the first door body 110. Thus, the second door body 120 is kept in the current position, and the gap between the door body 101 and the side wall of the pedestrian passage 13 is prevented from being too large.

[0050] In some optional embodiments, the locking structure 130 includes a latch pin 133, a first plug-in hole 131 arranged on the first door body 110, and a plurality of second plug-in holes 132 arranged on the first sliding rod 121, the first plug-in hole 131 is radially arranged along the first sliding hole 113 and connected to the first sliding hole 113, the plurality of second plug-in holes 132 are axially spaced along the first sliding rod 121, and the latch pin 133 is inserted into the first plug-in hole 131 and any second plug-in hole 132.

[0051] A plurality of second insertion holes 132 are provided so that when the second door body 120 is in different positions, the latch 133 can be inserted into the corresponding second insertion hole 132. By inserting the latch 133 into the first insertion hole 131 and any second insertion hole 132, the relative position of the first door body 110 and the second door body 120 can be fixed.

[0052] Of course, in some other optional implementations, a damping member may also be provided between the first sliding hole 113 and the first sliding rod 121 , so that the second door body 120 can be kept in the current position after being extended or retracted by the damping member.

[0053] Based on the above-mentioned isolation device 14, the present disclosure further provides a tunneling tunnel 10 system in another aspect, the tunneling tunnel 10 system includes a tunneling tunnel 10, and a tunneling device 11 and a conveying device 12 both disposed in the tunneling tunnel 10, a pedestrian passage 13 is formed between the conveying device 12 and the tunneling tunnel 10, and the pedestrian passage 13 is provided with an isolation device 14;

[0054] The isolation door 100 is used to separate the pedestrian passage 13 into a first passage section 13a and a second passage section 13b. The excavation equipment 11 is located in the first passage section 13a. The second passage section 13b is connected to the entrance and exit of the excavation tunnel 10. The travel switch 200 is electrically connected to the emergency stop system of the excavation equipment 11.

[0055] In some optional embodiments, the conveying device 12 is a bridge-type transfer machine, and the isolation door 100 is fixed on the body of the bridge-type transfer machine.

[0056] Since the fuselage of the bridge type transfer machine is fixed, therefore, the isolation door 100 is placed at a height above the fuselage of the bridge type transfer machine so that the isolation door 100 can be relatively fixed. This can prevent the lane from having local pieces that affect the normal use of the isolation device 14.

[0057] Of course, in some optional implementations, the isolation door 100 can also be fixed on other types of conveying equipment 12.

[0058] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0059] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0060] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. An isolation device for use in a tunneling working face, characterized in that: include: An isolation door, the isolation door is used to be installed in a pedestrian passage of an excavation working face, the isolation door has an open state and a closed state, in which the isolation door separates the pedestrian passage into a first passage section and a second passage section that are not connected to each other, and in the open state, the first passage section and the second passage section are connected; A travel switch is arranged on the isolation door. The travel switch is used to be connected to the emergency stop control circuit of the tunneling equipment. The travel switch has a normally closed state and a normally open state. In the closed state, the travel switch is in the normally closed state. In the open state, the travel switch is in the normally open state, so as to turn on the emergency stop control circuit to shut down the tunneling equipment.

2. The isolation device according to claim 1, characterized in that: The isolation door includes a door body and a door post. The door body is rotatably connected to the door post so that the isolation door can be switched between the closed state and the open state. The travel switch is arranged on the door post. When the isolation door is in the open state, the door body presses and triggers the travel switch to switch the travel switch from the normally closed state to the normally open state.

3. The isolation device according to claim 2, characterized in that: The door body includes a first door body and a second door body, one end of the first door body in the length direction is rotatably connected to the door post, and the second door body is slidably connected to the other end of the first door body in the length direction, and the sliding direction of the second door body is parallel to the length direction of the first door body.

4. The isolation device according to claim 3, characterized in that: The first door body is provided with at least two parallel first sliding holes at one end away from the door column, and the second door body has at least two parallel first sliding rods, and one axial end of each of the first sliding rods is slidably connected to the corresponding first sliding hole.

5. The isolation device according to claim 4, characterized in that: A first connecting rod is fixedly connected between at least two of the first sliding rods, and multiple second connecting rods are slidably connected between the at least two first sliding rods. The multiple second connecting rods are arranged in sequence along the length direction of the first door body and are located between the first connecting rod and the first door body. The first door body, the multiple second connecting rods and the first connecting rod are connected with flexible constraints in sequence.

6. The isolation device according to claim 5, characterized in that Rings are fixed to both ends of the second connecting rod, and the rings at both ends of the second connecting rod are respectively sleeved on the corresponding first sliding rod.

7. The isolation device according to any one of claims 4 to 6, characterized in that: A locking structure is provided between the first door body and the second door body, and the locking structure is used to fix the second door body to the first door body.

8. The isolation device according to claim 7, characterized in that The locking structure includes a latch, a first plug-in hole arranged on the first door body, and a plurality of second plug-in holes arranged on the first sliding rod. The first plug-in hole is radially arranged along the first sliding hole and connected to the first sliding hole. The plurality of second plug-in holes are axially spaced apart along the first sliding rod. The latch is inserted into the first plug-in hole and any one of the second plug-in holes.

9. A tunneling system, characterized in that: It comprises an excavation tunnel, and excavation equipment and conveying equipment both arranged in the excavation tunnel, a pedestrian passage is formed between the conveying equipment and the excavation tunnel, and the pedestrian passage is provided with an isolation device as described in any one of claims 1 to 8; The isolation door is used to separate the pedestrian passage into the first passage section and the second passage section. The tunneling equipment is located in the first passage section. The second passage section is connected to the entrance and exit of the tunneling tunnel. The travel switch is connected to the emergency stop control circuit of the tunneling equipment.

10. The tunneling system according to claim 9, characterized in that: The conveying equipment is a bridge-type transfer machine, and the isolation door is fixed on the body of the bridge-type transfer machine.

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