A short shaft manned device suitable for use in a tunnel of underground engineering

Abstract

The utility model relates to the technical field of short shaft in hole manned device, propose a kind of short shaft in hole manned device suitable for underground engineering, including fixedly connected on the cantilever gantry of wellhead top side wall, at least two steel wire ropes, basket, at least two hoists being located in the basket two sides and with the one-to-one correspondence of the steel wire rope, at least two rope collectors being respectively located in the lower of corresponding hoist and being matched with it, electrical box and positioning lock catch;One end of steel wire rope is fixed in the top of cantilever gantry, the other end is sequentially passed through hoist and is fixedly connected with rope collector, hoist and rope collector are electrically connected with electrical box.By cantilever gantry and hoist, rope collector, realize the stable lifting of basket in limited wellhead space;Positioning lock catch is used to lock when basket reaches predetermined position.The structure is compact, easy to install, suitable for short shaft construction of wellhead operation surface limitation, effectively improve personnel up and down well efficiency and improve operation safety.

Description

Technical Field

[0001] This utility model relates to the technical field of manned devices for short vertical shafts inside tunnels, and in particular to a manned device for short vertical shafts inside underground engineering tunnels. Background Technology

[0002] In underground engineering construction, shafts often serve as important passageways for personnel to move up and down, and are widely used in tunnel construction, underground power plants, and vertical connecting passages. Due to construction constraints, some shaft openings have narrow working faces, which limits personnel transportation and places high demands on the safety and adaptability of transportation equipment.

[0003] Existing methods for transporting personnel in vertical shafts mainly include steel ladders, suspended cages, and electric hoists used in construction. Using steel ladders for personnel access to and from the shaft requires manual climbing, which is physically demanding for workers in deeper shafts, impacting work efficiency and posing certain safety risks. Some projects have improved working conditions by installing ladders and rest platforms on the shaft walls, but these installations are time-consuming and susceptible to damage during excavation and blasting operations.

[0004] While suspended cage transportation can reduce the intensity of manual climbing, its structure and supporting systems are relatively complex, resulting in high installation costs and significant difficulties in deployment in underground projects where space at the wellhead is limited. Although electric suspended scaffolds for construction have reached a certain level of maturity, their suspension mechanisms occupy a large amount of space, making them unsuitable for narrow vertical shaft environments.

[0005] Therefore, this utility model provides a manned device suitable for short vertical shafts in underground engineering tunnels to solve the problems mentioned in the background art. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of the existing technology and provide a manned device suitable for short vertical shafts in underground engineering projects, thereby solving the problems mentioned in the background technology.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A manned device suitable for short vertical shafts in underground engineering tunnels includes: a cantilevered gantry frame fixedly connected to the top side wall of the shaft opening, at least two steel wire ropes, a basket, at least two hoists located on both sides of the basket and corresponding to the steel wire ropes, at least two rope winders located below the corresponding hoists and cooperating with them, an electrical box, and a positioning lock. One end of each wire rope is fixed to the top of the cantilevered gantry frame, and the other end passes through the corresponding hoist and is fixedly connected to the corresponding rope take-up device; the hoist and the rope take-up device are both electrically connected to the electrical box.

[0008] Preferably, the cantilevered gantry includes: a bottom frame and vertical frames fixedly connected to both sides of the bottom frame; one end of the bottom frame is fixedly connected to the top of the well opening via an anchor rod, and the other end is suspended above the well opening; the vertical frames are connected by a crossbeam, and the bottom of the crossbeam is provided with a lifting lug, and the wire rope is fixedly connected to the lifting lug; a diagonal bracing frame is provided between the vertical frames and the bottom frame.

[0009] Preferably, the wire rope is provided with a limiting block near the lifting lug.

[0010] Preferably, the bottom of the portion of the bottom frame positioned above the wellhead is provided with a diagonal brace, the upper end of which is fixedly connected to the bottom frame, and the lower end of which is connected to the well wall via expansion bolts.

[0011] Preferably, the positioning lock includes: a lock seat at the bottom of the cantilevered gantry frame, a pin on the side wall of the lock seat, a lock rod on the outside of the basket, a lock head at the top of the lock rod, a connecting pipe connecting the lock head and the lock rod, and a transition block sleeved with the connecting pipe; The bottom of the latch seat has a cylindrical hole, and the lock head is slidably connected to the cylindrical hole; the side wall of the latch seat has a mounting hole communicating with the cylindrical hole, and a pin is fitted in the mounting hole. The end of the pin near the cylindrical hole has a stop block with a sloping bottom, and a spring is fitted in the middle of the pin. One end of the spring is connected to the stop block, and the other end is fixedly connected to the latch seat. The end of the pin away from the cylindrical hole has a limiting platform; the stop block protrudes from the mounting hole and is placed in the cylindrical hole. The top of the lock head is chamfered, and the bottom of the lock head is provided with a receiving groove; the top and bottom of the transition block are both chamfered, and the top of the transition block matches the receiving groove.

[0012] Preferably, the side wall of the latch seat is provided with a protrusion, and the mounting hole is opened on the protrusion.

[0013] Preferably, the positioning latch has four sets.

[0014] This utility model discloses a manned device suitable for short vertical shafts in underground engineering tunnels, which has the following beneficial effects.

[0015] This utility model includes a cantilevered gantry frame fixedly connected to the top side wall of the wellhead, at least two steel wire ropes, a suspended basket, at least two hoists located on both sides of the suspended basket and corresponding to each steel wire rope, at least two rope take-up devices located below each corresponding hoist and cooperating with it, an electrical box, and a positioning lock. One end of each steel wire rope is fixed to the top of the cantilevered gantry frame, and the other end passes through the hoist in sequence and is fixedly connected to the rope take-up device. The hoist and rope take-up device are electrically connected to the electrical box. The cantilevered gantry frame, hoists, and rope take-up devices enable stable lifting and lowering of the suspended basket within the confined wellhead space. The positioning lock is used to lock the suspended basket when it reaches a predetermined position. The structure is compact and easy to install, suitable for short vertical shaft construction with limited working surfaces at the wellhead, effectively improving the efficiency of personnel entering and leaving the well and enhancing operational safety. Attached Figure Description

[0016] Figure 1 This is a side view of the overall structure of this utility model.

[0017] Figure 2 This is a front view of the overall structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the positioning lock before locking according to this utility model.

[0019] Figure 4 This is a schematic diagram of the positioning lock of this utility model when locked.

[0020] Figure 5 This is a schematic diagram of the positioning lock before unlocking.

[0021] Figure 6 This is a schematic diagram of the positioning lock of this utility model when it is unlocked.

[0022] In the attached diagram: 1-I-beam; 2-anchor bolt; 3-channel steel; 4-steel pipe; 5-steel plate; 6-expansion bolt; 7-lifting lug; 8-wire rope; 9-safety lock; 10-hoist; 11-suspended basket; 12-rope retractor; 13-limit block; 14-electrical box; 15-positioning lock; 151-lock seat; 152-pin; 153-locking rod; 154-lock head; 155-transition block; 156-stop block; 157-spring; 158-limiting platform; 159-connecting pipe. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Example 1 Reference Figures 1 to 2 As shown, a manned device suitable for short vertical shafts in underground engineering tunnels includes: a cantilevered gantry frame fixedly connected to the top side wall of the shaft opening, at least two steel wire ropes, a basket 11, at least two hoists 10 located on both sides of the basket 11 and corresponding to the steel wire ropes, at least two rope winders 12 located below the corresponding hoist 10 and cooperating with it, an electrical box 14, and a positioning lock 15. One end of each wire rope is fixed to the top of the cantilevered gantry frame, and the other end passes through the corresponding hoist 10 and is fixedly connected to the corresponding rope take-up device 12; both the hoist 10 and the rope take-up device 12 are electrically connected to the electrical box 14.

[0026] In this embodiment, the hoist 10 works in conjunction with the wire rope, serving as the main mechanism providing traction power to the wire rope. In this embodiment, the hoist 10 adopts a common domestic electric wire rope hoist model, such as LTD63 or LTD80A. This type of hoist is a standard module for domestic construction hoists, and its lifting and lowering movements can be controlled by gear reduction and the friction of the wire rope. This type of hoist 10 features a compact structure, convenient installation, and stable operation, making it advantageous for deployment and use under conditions of limited space at the wellhead.

[0027] Correspondingly, the rope take-up device 12 is used to tighten and release the wire rope, ensuring effective traction of the wire rope under the action of the hoist 10. The rope take-up device 12 can be a commonly used electric wire rope winch in domestic engineering, and the model can be selected according to the load and wire rope diameter, such as JK type electric winch (0.5t ~ 10t level electric winch), 0.5t–10t electric wire rope hoisting winch, etc.

[0028] The hoist 10 and the rope take-up device 12 are electrically connected to the electrical control box via cables. The electrical control box integrates control switches, contactors, overload protection, and emergency stop buttons, etc., to control the hoist 10 and the rope take-up device 12's lifting, starting, stopping, and emergency stopping actions, facilitating on-site operation.

[0029] In this embodiment, to enhance the safety of the device, safety locks 8 and wire ropes 9 are respectively installed above the hoists 10 on both sides of the suspended platform 11. The safety locks 8 and wire ropes 9 can adopt existing swing arm or claw-type safety locks 8 and wire ropes 9 safety mechanisms used in construction hoists (such as the LTS20 type safety locks 8 and wire ropes 9 commonly used in electric suspended platforms 11). Under normal hoist 10 drive, the safety locks 8 and wire ropes 9 are in a released state. When the hoist 10 malfunctions, its speed increases abnormally, or the wire rope slips abnormally, the mechanism of the safety locks 8 and wire ropes 9 automatically engages the wire rope, thereby preventing the suspended platform 11 from continuing to fall when the hoist 10 fails.

[0030] Preferably, in this embodiment, the cantilevered gantry includes: a bottom frame and vertical frames fixedly connected to both sides of the bottom frame; one end of the bottom frame is fixedly connected to the top of the well opening through an anchor rod 2, and the other end is suspended above the well opening; the vertical frames are connected by a crossbeam, and the bottom of the crossbeam is provided with a lifting lug 7, and the wire rope is fixedly connected to the lifting lug 7; a diagonal bracing frame is provided between the vertical frames and the bottom frame.

[0031] In this embodiment, the bottom frame and the vertical frame are both welded together by I-beams 1. Both the bottom frame and the vertical frame are rectangular frames. The diagonal bracing frame is welded together by steel pipes 4. Channel steel 3 is welded inside the vertical frame and the diagonal bracing frame. Steel plates 5 are welded to the weld points of the channel steel 3 with the I-beams 1 and the steel pipes 4 to strengthen the connection.

[0032] Preferably, in this embodiment, a limiting block 13 is provided near the lifting lug 7 of the wire rope.

[0033] Preferably, in this embodiment, the bottom of the portion of the bottom frame positioned above the wellhead is provided with a diagonal brace. The upper end of the diagonal brace is fixedly connected to the bottom frame, and the lower end of the diagonal brace is connected to the well wall by an expansion bolt 6.

[0034] Example 2 like Figures 3 to 6 As shown, based on Embodiment 1, as a preferred embodiment, in this embodiment, the positioning latch 15 includes: a latch seat 151 located at the bottom of the cantilevered gantry frame, a pin 152 located on the side wall of the latch seat 151, a locking rod 153 located on the outside of the suspended basket 11, a lock head 154 located at the top of the locking rod 153, a connecting pipe 159 connecting the lock head 154 and the locking rod 153, and a transition block 155 sleeved with the connecting pipe 159; the transition block 155 can slide axially along the connecting pipe 159.

[0035] The bottom of the latch seat 151 is provided with a cylindrical hole, and the lock head 154 is slidably connected in the cylindrical hole. The side wall of the latch seat 151 is provided with a mounting hole communicating with the cylindrical hole. A pin 152 is fitted in the mounting hole. A stop block 156 with a sloping bottom is provided at one end of the pin 152 near the cylindrical hole. A spring 157 is fitted in the middle of the pin 152. One end of the spring 157 is connected to the stop block 156, and the other end is fixedly connected to the latch seat 151. A limiting platform 158 is provided at the end of the pin 152 away from the cylindrical hole. The stop block 156 passes through the mounting hole and is placed in the cylindrical hole. The top of the lock head 154 is chamfered, and the bottom of the lock head 154 is provided with a receiving groove; the top and bottom of the transition block 155 are both chamfered, and the top of the transition block 155 matches the receiving groove.

[0036] In this embodiment, as Figure 3 As shown, at this point, the suspended platform 11 has risen to the cantilevered gantry frame but has not yet reached its final position, and the positioning lock 15 is not locked. As the suspended platform 11 continues to rise, the lock head 154 pushes the stop block 156 outward until the stop block 156 is engaged with the bottom of the lock head 154 under the action of the spring 157, thus stopping the hoist 10. (In practical applications, the lengths of the connecting pipe 159 and the pin 152 can be set as needed, so that the pin 152 is visible when pushed outward by the lock head 154, making it easy for operators to determine the locking position and stop the hoist 10.) Figure 4 As shown, the positioning lock 15 is in the locked state at this time, and the suspended platform 11 is locked to the cantilevered gantry. At this time, due to the locking of the lock seat 151 and the hoist 10, the suspended platform 11 is very stable for workers going up and down. When it is necessary to lower the suspended platform 11, first control the hoist 10 to continue rising. At this time, the top of the transition block 155 gradually contacts the stop block 156, pushing the stop block 156 outward. When the bottom of the transition block 155 contacts the stop block 156, as shown... Figure 5 As shown, at this time, the hoist 10 can be controlled to lower the basket 11. At this time, the transition block 155 is lifted, and the transition block 155 gradually embeds into the receiving groove at the bottom of the lock head 154. As the basket 11 continues to descend, as... Figure 6 As shown, the stop block 156 is pushed outward by the transition block 155, and the stop block 156 does not contact the bottom of the lock head 154, so the basket 11 descends smoothly.

[0037] Preferably, in this embodiment, the side wall of the latch seat 151 is provided with a protrusion, and the mounting hole is opened on the protrusion.

[0038] Preferably, in this embodiment, the positioning lock 15 is provided in four sets, the lock seat 151 is respectively set on the four corners of the cantilever gantry frame for the basket 11 to pass through, and the locking rod 153 is set at the corresponding position of the basket 11.

[0039] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Substitutions may include replacements for some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the scope of protection of this utility model.

Claims

1. A manned device suitable for short vertical shafts in underground engineering tunnels, characterized in that: It includes a cantilevered gantry frame fixedly connected to the top side wall of the wellhead, at least two steel wire ropes, a basket, at least two hoists located on both sides of the basket and corresponding to the steel wire ropes, at least two rope winders located below the corresponding hoists and cooperating with them, an electrical box, and a positioning lock. One end of each wire rope is fixed to the top of the cantilevered gantry frame, and the other end passes through the corresponding hoist and is fixedly connected to the corresponding rope take-up device; the hoist and the rope take-up device are both electrically connected to the electrical box.

2. The manned device suitable for short vertical shafts in underground engineering tunnels according to claim 1, characterized in that, The cantilevered gantry frame includes: a bottom frame and vertical frames fixedly connected to both sides of the bottom frame; one end of the bottom frame is fixedly connected to the top of the well opening by an anchor rod, and the other end is suspended above the well opening; the vertical frames are connected by a crossbeam, and the bottom of the crossbeam is provided with a lifting lug, and the wire rope is fixedly connected to the lifting lug; a diagonal bracing frame is provided between the vertical frames and the bottom frame.

3. A manned device suitable for short vertical shafts in underground engineering tunnels according to claim 2, characterized in that, The wire rope is equipped with a limiting block near the lifting lug.

4. A manned device suitable for short vertical shafts in underground engineering tunnels according to claim 2, characterized in that, The bottom frame, located above the wellhead, is equipped with a diagonal brace at its bottom. The upper end of the diagonal brace is fixedly connected to the bottom frame, and the lower end of the diagonal brace is connected to the well wall by expansion bolts.

5. A manned device suitable for short vertical shafts in underground engineering tunnels according to claim 1, characterized in that, The positioning lock includes: a lock seat located at the bottom of the cantilevered gantry frame, a pin located on the side wall of the lock seat, a lock rod located on the outside of the basket, a lock head located at the top of the lock rod, a connecting pipe connecting the lock head and the lock rod, and a transition block sleeved with the connecting pipe. The bottom of the latch seat has a cylindrical hole, and the lock head is slidably connected to the cylindrical hole; the side wall of the latch seat has a mounting hole communicating with the cylindrical hole, and a pin is fitted in the mounting hole. The end of the pin near the cylindrical hole has a stop block with a sloping bottom, and a spring is fitted in the middle of the pin. One end of the spring is connected to the stop block, and the other end is fixedly connected to the latch seat. The end of the pin away from the cylindrical hole has a limiting platform; the stop block protrudes from the mounting hole and is placed in the cylindrical hole. The top of the lock head is chamfered, and the bottom of the lock head is provided with a receiving groove; the top and bottom of the transition block are both chamfered, and the top of the transition block matches the receiving groove.

6. A manned device suitable for short vertical shafts in underground engineering tunnels according to claim 5, characterized in that, The side wall of the latch seat is provided with a protrusion, and the mounting hole is opened on the protrusion.

7. A manned device suitable for short vertical shafts in underground engineering tunnels according to claim 5, characterized in that, The positioning lock has four sets.

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