CN217783492U

CN217783492U - Shaft bottom protector

Info

Publication number: CN217783492U
Application number: CN202221626101.6U
Authority: CN
Inventors: 郝利军; 杨志勇; 高强; 纳小平; 冯俊淮; 白军平; 徐芳波; 李斌斌; 史宏磊; 袁抄; 薛俊杰; 吕彬强
Original assignee: Sinohydro Bureau 5 Co Ltd
Current assignee: Sinohydro Bureau 5 Co Ltd
Priority date: 2022-06-24
Filing date: 2022-06-24
Publication date: 2022-11-11
Anticipated expiration: 2032-06-24

Abstract

The utility model relates to an underground cavern excavation construction field discloses a shaft bottom protector, include: the mounting frame is arranged below the bottom of the vertical shaft; a fixing rod is arranged on the mounting rack, and the mounting rack is fixed below the bottom of the vertical shaft through the fixing rod anchored into the side wall of the vertical shaft above; the buffer net is laid on the upper half part of the buffer support group, and the buffer support group is a conical support frame arranged on the upper surface of the mounting frame; the slag blocking hopper is arranged on the lower surface of the mounting frame and is an inverted cone; the lower half part of the slag blocking hopper can be opened and closed to be used as a slag cleaning port; the bottom of the slag blocking bucket is also provided with a water outlet which is communicated with an external water collecting tank through a water discharging pipe. The utility model discloses a buffering net can prevent that the pushing off slag from fighting the damage at its first buffering power release effect when bold sediment eminence drops, and the pushing off slag is fought and is left the ventilation space with the cliff, does not influence the hole room and utilizes the shaft to ventilate, can prevent simultaneously that the lump sediment from dropping and causing personnel, apparatus to damage, has promoted shaft bottom construction security nature greatly.

Description

Shaft bottom protector

Technical Field

The utility model relates to an underground cavern excavation construction field, concretely relates to shaft bottom protector.

Background

And in the underground cavern excavation construction stage, after the excavation of part of vertical shafts is finished, the vertical shafts enter the lower cavern for construction. Because spout and mix the reason that drops, the opening falls the thing etc. and can lead to the shaft bottom to have the high altitude risk of falling the thing, greatly influence personnel and the equipment safety of lower part cavern construction stage, the shaft still plays effects such as ventilation simultaneously, should not adopt direct shutoff measure, again because of common pushing off the slag net intensity is not enough, and can't block the sediment piece in small and broken bits completely, be difficult to satisfy construction safety requirement, consequently, need provide a firm, stable, sustainable use and do not influence the underground cavern and utilize the shaft ventilation, improve the device that the shaft bottom of shaft functions such as lower part drainage prevented the high altitude from falling the thing.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in providing a shaft bottom protector, among the current stage underground cavern excavation process, there is the high risk of falling object in the shaft bottom, and common slag blocking net intensity is not enough, can't block the problem that the thin garrulous sediment piece is difficult to satisfy construction safety requirement completely.

For solving the technical problem, the utility model discloses the technical scheme who adopts does: a shaft bottom guard comprising:

the mounting frame is a horizontally arranged square frame and is arranged below the bottom of the vertical shaft; a plurality of fixing rods facing upwards are uniformly arranged on the mounting rack, and the mounting rack is fixed below the bottom of the vertical shaft through the fixing rods anchored into the side wall of the vertical shaft above;

the buffer net is laid on the upper half part of the buffer support group, and the buffer support group is a conical support frame arranged on the upper surface of the mounting frame;

the slag blocking hopper is arranged on the lower surface of the mounting frame and is an inverted cone; the lower half part of the slag blocking hopper can be opened and closed to be used as a slag cleaning port; the bottom of the slag blocking hopper is also provided with a water outlet which is communicated with an external water collecting tank through a water discharging pipe.

Specially, the buffering support group comprises four main body support rods, the top ends of the main body support rods are converged above the gravity center of the mounting frame, the bottom ends of the main body support rods are fixedly connected with four end points of the mounting frame, and a square buffering net fixing frame horizontally arranged is further arranged in the middle of the buffering support group.

Furthermore, the buffer support group also comprises a plurality of auxiliary support rods for assisting in supporting the buffer support group.

Furthermore, the auxiliary support rod is arranged on the mounting rack and is vertical to the mounting rack, and the tail end of the auxiliary support rod is fixed at the midpoint of the main body support rod.

Furthermore, a vertical X-shaped reinforcing support is arranged between the adjacent fixed rods, one end of the auxiliary support rod is fixedly connected with the middle point of the main support rod, and the other end of the auxiliary support rod is fixedly connected with the intersection point of the X-shaped reinforcing support.

Particularly, the upper half part and the lower half part of the side wall of one side of the slag blocking hopper are hinged to form a slag cleaning port rotating shaft, the outer side walls of the upper half part and the lower half part of the slag blocking hopper on the opposite side of the slag cleaning port rotating shaft are respectively provided with a locking support, and the locking supports are locked through fastening bolts.

Furthermore, rubber sealing strips are arranged at the connecting seams of the upper half part and the lower half part of the slag blocking hopper.

Particularly, a steel filter screen is arranged at the position of the water outlet, and a drain valve is arranged on the drain pipe.

In particular, a ventilation gap is left between the mounting frame and the bottom of the shaft.

Compared with the prior art, the utility model, following advantage and beneficial effect have: the utility model discloses a mode that buffering check kept off, the shaft has been solved and the piece easily falls, the problem of sediment damage personal equipment, the buffering net can be at its first buffering power of letting out when bold sediment eminence drops, prevent that the pushing off slag fill from damaging, the pushing off slag fill leaves the ventilation space with the cliff, do not influence the hole room and utilize the shaft ventilation, can prevent simultaneously that the piece sediment from dropping and causing personnel, the apparatus damages, but utilize the scarfing cinder mouth regularly to clear up the piece sediment that accumulates in the pushing off slag fill in order to prevent that the piece sediment is accumulated too much and collapse the mount, the filter screen can filter in the big particle diameter the slabstone prevent its jam drain pipe, the drain pipe can be with the rainwater that piles up in the pushing off slag fill, liquid such as groundwater is collected and is discharged, play certain function that prevents the rainwater from pouring into, further perfect the function of the utility model discloses, reach the effect that prevents the high weight of shaft piece sediment, shaft bottom construction security has been promoted greatly.

Drawings

Fig. 1 is a schematic view of the structure of the present invention.

Fig. 2 is a schematic top view of the present invention.

FIG. 3 is a schematic top view of a slag hopper.

The definitions of the reference symbols in the figures are: a mounting frame-1; a shaft-2; a fixed rod-3; an X-shaped reinforcing brace-31; a buffer net-4; a buffer support group-5; a main body support rod-51; an auxiliary support rod-52; a buffer net fixing frame-53; a slag blocking hopper-6; a water discharge port-61; a locking support-62; a drain pipe-7; drain valve-71; an external header tank-8; vent gap-9.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, so as to further understand the concept, the technical problems to be solved, the technical features constituting the technical solutions, and the technical effects brought by the technical solutions of the present invention.

As shown in fig. 1 to 3, a shaft bottom guard includes:

the mounting frame 1 is a horizontally arranged square frame and is arranged below the bottom of the vertical shaft 2; a plurality of upward fixing rods 3 are uniformly arranged on the mounting rack 1, and the mounting rack 1 is fixed below the bottom of the vertical shaft 2 through the fixing rods 3 anchored into the side wall of the vertical shaft 2 above;

the buffer net 4 is laid at the upper half part of the buffer support group 5, and the buffer support group 5 is a conical support frame arranged on the upper surface of the mounting frame 1;

the slag blocking hopper 6 is arranged on the lower surface of the mounting frame 1 and is an inverted cone; the lower half part of the slag blocking hopper 6 can be opened and closed to be used as a slag cleaning port; and a water outlet 61 is formed at the bottom of the slag blocking hopper 6, and the water outlet 61 is communicated with an external water collecting tank 8 through a water discharge pipe 7.

The utility model discloses in, the whole dead lever 3 through orientation top and the 2 lateral walls of anchor income shaft of device is installed in 2 bottoms of shaft below, and mounting bracket 1 covers whole shaft area. The conical buffer support group 5 arranged on the mounting frame 1 is used as a mounting and supporting position of the buffer net 4 and provides supporting force for the buffer net 4. When having the sediment piece to drop above the shaft, partly fall into the within range of buffering net 4, fall into the fender sediment fill 6 of below after the buffering in, another part directly falls into fender sediment fill 6 from the other space of buffering net 4 in directly to play and avoid the high sediment piece that falls into 2 bottoms of shaft and damage equipment and injure constructor's effect by a crashing object, outside sleet water and muddy water also collect in keeping off sediment fill 6, and discharge through the outlet 61 that keeps off sediment fill 6 bottoms and keep off sediment fill 6, and enter in outside header tank 8. After the high-weight slag blocks fall into the slag blocking hopper 6 and are stacked to a certain amount, the slag blocks stacked in the slag blocking hopper 6 fall from the slag blocking hopper 6 by opening the openable slag removing port, the slag blocking hopper 6 is cleaned by closing the slag removing port and locking the slag removing port, and the slag blocking hopper can be continuously used.

As a preferred embodiment, the buffering support group 5 includes four main body support rods 51, the top ends of the main body support rods 51 are converged above the center of gravity of the mounting frame 1, the bottom ends of the main body support rods 51 are fixedly connected with four end points of the mounting frame 1, and a square buffering net fixing frame 53 horizontally arranged is further arranged in the middle of the buffering support group 5.

In this embodiment, a specific structure of the buffering support group 5 is provided for implementation, wherein the main body support rod 51 is fixed on the mounting frame 1 in a conical shape with an upward tip, and the bottom of the buffering net 4 is fixed on the buffering net fixing frame 53, so as to provide enough supporting force for the buffering net 4, and also provide a certain block when the slag block falls on the buffering support group 5, thereby preventing the slag block from directly falling into the slag blocking bucket 6 to cause damage to the slag blocking bucket 6.

As a further embodiment, the buffer bracket set 5 further includes a plurality of sub-bracket rods 52 for assisting in supporting the buffer bracket set 5.

In this embodiment, the sub-bracket link 52 functions to provide sufficient supporting force to the main body bracket link 51, thereby ensuring sufficient impact resistance of the cushion net 4 and the main body bracket link 51,

as a further embodiment, the sub-bracket bar 52 is disposed on the mounting bracket 1 to be perpendicular to the mounting bracket 1, and the end is fixed at the midpoint of the main body bracket bar 51.

As a further embodiment, a vertical X-shaped reinforcing brace 31 is provided between the adjacent fixing rods 3, and one end of the sub-bracket rod 52 is fixedly connected to the midpoint of the main bracket rod 51, and the other end is fixedly connected to the intersection of the X rows of reinforcing braces 31.

In this embodiment, the X-shaped reinforcing brace 31 is disposed between the adjacent fixing rods 3 on the mounting frame 1, so as to enhance the impact resistance and deformation resistance of the whole device.

As a preferred embodiment, the upper half part and the lower half part of the sidewall of one side of the slag blocking hopper 6 are hinged to each other to serve as a slag removing opening rotating shaft, and the outer sidewalls of the upper half part and the lower half part of the slag blocking hopper 6 on the opposite sides of the slag removing opening rotating shaft are respectively provided with a locking support 62, and the locking supports 62 are locked by fastening bolts.

In this embodiment, a concrete structure of a slag removing opening for implementation is provided, in which the slag blocking hopper 6 is a cone facing downward, and after the lower half part is cut off, one side edge is hinged with the original side edge of the slag blocking hopper 6 in a hinge or hinged support manner to form a rotating shaft of the slag removing opening, so that the slag removing opening can be opened and closed. And meanwhile, the locking support 62 on the outer wall of the slag removing opening and the outer wall of the upper half part of the slag blocking hopper 6 and the matched fastening bolt are used for locking, so that the aim of cleaning the slag removing opening for cleaning accumulated slag blocks in the slag blocking hopper 6 is fulfilled.

As a further embodiment, a rubber sealing strip is provided at the joint seam of the upper half and the lower half of the slag trap 6.

In the embodiment, the rubber sealing strip is arranged at the edge connecting seam of the slag removing opening, so that the function of preventing muddy water or rain, snow and water from leaking out of the slag blocking hopper 6 is achieved.

In a preferred embodiment, a steel filter screen is disposed at the drain port 61, and a drain valve 71 is disposed on the drain pipe 7.

In this embodiment, the drain valve 71 functions to control the drainage, facilitating timely replacement when the external water collection tank 8 is full.

As a preferred embodiment, a ventilation gap 9 is left between the mounting frame 1 and the bottom of the shaft 2.

In this embodiment, the ventilation gap 9 is used for ensuring air circulation in the excavation process of the cavern at the bottom of the vertical shaft 2, so as to ensure the air quality in the cavern.

The utility model discloses "connect", "fixed" that appear in the description can be fixed connection, machine-shaping, welding, also can mechanical connection, and particular case understands that above-mentioned term is in the utility model provides a concrete meaning.

In the description of the present invention, the terms "center", "upper", "lower", "horizontal", "inner", "outer", etc., are used, and their designated orientations or positional relationships are only for convenience of description and simplicity of description, but do not indicate or imply that the designated device or element must have a particular orientation, and therefore should not be construed as limiting the present invention.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that; the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A shaft bottom guard, comprising:

the mounting frame (1) is a horizontally arranged square frame and is arranged below the bottom of the vertical shaft (2); a plurality of fixing rods (3) which face upwards are uniformly arranged on the mounting rack (1), and the mounting rack (1) is fixed below the bottom of the vertical shaft (2) through the fixing rods (3) which are anchored into the side wall of the vertical shaft (2) above;

the buffer net (4) is laid on the upper half part of the buffer support group (5), and the buffer support group (5) is a conical support frame arranged on the upper surface of the mounting frame (1);

the slag blocking hopper (6) is arranged on the lower surface of the mounting rack (1) and is an inverted cone; the lower half part of the slag blocking hopper (6) can be opened and closed to be used as a slag cleaning port; the bottom of the slag blocking hopper (6) is also provided with a water outlet (61), and the water outlet (61) is communicated with an external water collecting tank (8) through a water drain pipe (7).

2. The shaft bottom protection device according to claim 1, characterized in that the buffer support group (5) comprises four main body support rods (51), the top ends of the main body support rods (51) are converged above the gravity center of the mounting frame (1), the bottom ends of the main body support rods are fixedly connected with four end points of the mounting frame (1), and a horizontally arranged square buffer net fixing frame (53) is further arranged in the middle of the buffer support group (5).

3. A shaft bottom guard according to claim 2, characterized in that the buffer bracket set (5) also comprises a number of sub-bracket rods (52) for assisting in supporting the buffer bracket set (5).

4. A shaft bottom guard according to claim 3, characterized in that the secondary bracing strut (52) is arranged on the mounting frame (1) perpendicularly to the mounting frame (1) and is fixed at its end at the midpoint of the main body bracing strut (51).

5. A shaft bottom guard as defined in claim 3, characterized in that vertical X-shaped reinforcing struts (31) are provided between adjacent fixing rods (3), and that the sub-bracket rods (52) are fixedly connected at one end to the midpoint of the main bracket rod (51) and at the other end to the intersection of the X-shaped reinforcing struts (31).

6. A shaft bottom guard as defined in claim 1, characterized in that the upper and lower halves of one side wall of the slag trap (6) are hinged together as a rotating shaft of the slag cleaning opening, and a locking support (62) is provided on the outer side wall of each of the upper and lower halves of the slag trap (6) opposite to the rotating shaft of the slag cleaning opening, and the locking supports (62) are locked by fastening bolts.

7. A shaft bottom protection device as defined in claim 5, characterized in that rubber sealing strips are provided at the connecting seams of the upper and lower halves of the slag trap (6).

8. A shaft bottom guard as claimed in claim 1, characterized in that a steel screen is provided at the drain opening (61) and a drain valve (71) is provided at the drain pipe (7).

9. A shaft bottom guard according to claim 1, characterized in that a ventilation gap (9) is left between the mounting frame (1) and the bottom of the shaft (2).