CN219511406U

CN219511406U - Engineering blasting protector

Info

Publication number: CN219511406U
Application number: CN202320424144.4U
Authority: CN
Inventors: 白芝勇; 徐劲翔; 胥青松; 陈林; 周科; 谯生有; 周建东; 王改鹏
Original assignee: China Railway First Engineering Group Co Ltd; Fifth Engineering Co Ltd of China Railway First Engineering Group Co Ltd
Current assignee: China Railway First Engineering Group Co Ltd; Fifth Engineering Co Ltd of China Railway First Engineering Group Co Ltd
Priority date: 2023-03-08
Filing date: 2023-03-08
Publication date: 2023-08-11
Anticipated expiration: 2033-03-08

Abstract

The utility model discloses an engineering blasting protection device, which comprises a support plate, wherein a support rod is fixed on the support plate, and a protection box is fixed at the upper end of the support plate; the front end and the rear end of the protective box are symmetrically provided with openings, and a first protective net is arranged in each opening; the left end and the right end of the protective box are symmetrically provided with adjusting channels, protective frames are oppositely arranged in the adjusting channels, second protective nets are arranged in the protective frames, and the protective frames can move left and right along the corresponding adjusting channels; the upper end of the protective box is provided with a movable adjusting mechanism, the movable adjusting mechanism is connected with the top of the protective frame, and the protective frame is driven to be close to or far away from each other through the movable adjusting mechanism. According to the utility model, the movable protective frames with the protective net are arranged in the protective box, and the two protective frames are driven to be far away from or close to each other by the moving adjusting mechanism, so that the adjustment of the protective range is realized, and the protective effect of tunnel blasting is improved.

Description

Engineering blasting protector

Technical Field

The utility model belongs to the technical field of engineering blasting, and particularly relates to an engineering blasting protection device.

Background

When the engineering blasting is carried out, certain protective measures are generally adopted, particularly when a drilling and blasting method is adopted for tunnel excavation, flying stones generated in the blasting operation process near the tunnel portal have a strong destructive effect on the surrounding environment, so that the blasting protective device is arranged on the front surface of the tunnel portal during the blasting operation near the tunnel portal so as to reduce the damage and influence of the flying stones on a construction site.

Through searching, the utility model patent with the Chinese patent publication number of CN210892889U discloses a tunnel portal blasting protection device; the anti-explosion rolling shutter door comprises a rigid-flexible combined wall system, an anti-explosion rolling shutter door system, a spraying system and an auxiliary system; the problems of time consuming and labor consuming repeated erection and disassembly of the protective bent in the prior art are solved, and the working efficiency and safety of the blasting operation site are improved. Although the device improves the protection effect of blasting tunnel through the installation of multilayer wire net, when in actual use, because inconvenient to adjust the protection scope to make its application occasion receive the restriction, influence its protection effect.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model provides an engineering blasting protection device. The technical problems to be solved by the utility model are realized by the following technical scheme:

the engineering blasting protection device comprises a support plate, wherein a support rod is fixed on the support plate, and a protection box is fixed at the upper end of the support plate; the front end and the rear end of the protective box are symmetrically provided with openings, and a first protective net is arranged in each opening; the left end and the right end of the protective box are symmetrically provided with adjusting channels, protective frames are oppositely arranged in the adjusting channels, second protective nets are arranged in the protective frames, and the protective frames can move left and right along the corresponding adjusting channels; the upper end of the protective box is provided with a movable adjusting mechanism, the movable adjusting mechanism is connected with the top of the protective frame, and the protective frame is driven to be close to or far away from each other through the movable adjusting mechanism.

Further, the supporting rod comprises a fixed cylinder, the fixed cylinder is vertically fixed on four corners of the supporting plate, the lower end of the fixed cylinder is conical, a pushing rod is inserted into the upper end of the fixed cylinder, and the lower end of the pushing rod is connected with a pushing block; the lower end of the fixed cylinder is provided with a through hole, wedge-shaped blocks are oppositely arranged in the through hole, and the wedge-shaped blocks are in sliding connection with the through hole; the outer side of the wedge-shaped block is a wedge-shaped with the upper end protruding outwards, and the opposite surface is a V-shaped inclined surface.

Further, a first sliding groove is formed in the through hole, and the wedge block is slidably connected with the first sliding groove through a first sliding block.

Further, a second sliding groove is formed in the inner surface of the upper end of the fixed barrel relatively, and the pushing rod is connected with the second sliding groove in a sliding mode through a second sliding block.

Further, the movable adjusting mechanism comprises a stud bolt which is horizontally arranged between the left end and the right end of the upper part in the protective box, threaded sleeves are symmetrically sleeved on the stud bolt, and the threaded sleeves are respectively connected with the top of the protective frame through connecting blocks;

the top of protective housing is installed and is adjusted the pole, the lower extreme of adjusting the pole is fixed with first conical gear, the fixed cover in middle part of stud is equipped with second conical gear, just second conical gear and first conical gear meshing.

Further, the top of protective housing is equipped with the mounting hole, the mounting hole middle part transversely is provided with the ring recess, ring recess internal rotation is connected with the ring board, adjust the pole cartridge and be in the mounting hole, just the fixed suit of ring board is in adjust the pole.

Further, a third sliding groove is formed in the bottom of the protective box, and the lower end of the protective frame is in sliding connection with the third sliding groove through a third sliding block.

Further, a rotating handle is fixed at the upper end of the adjusting rod.

The utility model has the beneficial effects that:

according to the utility model, the movable protective frame with the protective net is arranged in the protective box, and the two bevel gears connected with the upper end of the protective frame relatively move through the rotation of the adjusting rod, so that the bidirectional bolt rotates, the threaded sleeve sleeved on the bidirectional bolt moves left and right to drive the protective frame to move left and right, the adjustment of the protective range is realized, and the protective effect of tunnel blasting is improved.

The present utility model will be described in further detail with reference to the accompanying drawings and examples.

Drawings

FIG. 1 is a schematic diagram of the outline structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of FIG. 1;

FIG. 3 is an enlarged schematic view of the portion A in FIG. 2;

FIG. 4 is a schematic view of the internal structure of the support bar;

fig. 5 is a use state diagram of the present utility model.

Reference numerals illustrate:

1-a supporting plate; 2-a protective box; 3-a first protective net; 4-a protective frame; 5-a second protective net; 6-a movement adjustment mechanism; 7-supporting rods; 6-1-stud bolts; 6-2-screw sleeve; 6-3-connecting blocks; 6-4, adjusting the rod; 6-5-first bevel gear; 6-6-second bevel gear; 6-7-circular ring grooves; 6-8-ring plates; 6-9-third sliding grooves; 6-10-third slide blocks; 6-11-rotating the handle; 7-1-fixing cylinder; 7-2-pushing rod; 7-3-pushing blocks; 7-4-a first chute; 7-5-a first slider; 7-6-wedge blocks; 7-7-second sliding grooves; 7-8-second slider.

Detailed Description

The present utility model will be described in further detail with reference to specific examples, but embodiments of the present utility model are not limited thereto.

Referring to fig. 1 to 5, the utility model provides an engineering blasting protection device, which comprises a support plate 1, wherein a protection box 2 is fixed at the upper end of the support plate 1, the front end and the rear end of the protection box 2 are symmetrically opened, and a first protection net 3 is arranged on each opening; the left end and the right end of the protective box 2 are symmetrically provided with adjusting channels, the adjusting channels are communicated with the inside of the box body of the protective box 2, protective frames 4 are oppositely arranged in the adjusting channels, second protective nets 5 are arranged in the protective frames 4, and the protective frames 4 can move left and right along the corresponding adjusting channels; the upper end of the protective frame 4 is provided with a movable adjusting mechanism 6, the movable adjusting mechanism 6 is connected with the top of the protective frame 4, and the movable adjusting mechanism 6 drives the protective frames 4 to be close to or far away from each other; support rods 7 are fixed at four corners of the lower end of the support plate 1.

Specifically, the supporting rod 7 is used for supporting the protective box 2 at the upper end, the supporting rod 7 comprises a fixed cylinder 7-1, the fixed cylinder 7-1 is vertically fixed on four corners of the supporting plate 1, the lower end of the fixed cylinder is conical, the lower end of the fixed cylinder extends into the ground to be fixed, a pushing rod 7-2 is inserted into the upper end of the fixed cylinder 7-1, and the pushing rod 7-2 can slide up and down along the inside of the fixed cylinder 7-1; the lower end of the pushing rod 7-2 is connected with a pushing block 7-3, the lower end of the fixed cylinder 7-1 is provided with a through hole, namely, the side wall of the lower end of the fixed cylinder 7-1 is provided with openings relatively, so that a transverse through hole is formed at the lower end of the fixed cylinder 7-1, the side walls of the two openings are symmetrically provided with a first sliding groove 7-4, a first sliding block 7-5 is arranged in the first sliding groove 7-4, two wedge-shaped blocks 7-6 are symmetrically fixed on the first sliding block 7-5, and the two wedge-shaped blocks 7-6 are in sliding connection with the first sliding groove 7-4 through the first sliding block 7-5; the opposite surfaces of the two wedge-shaped blocks 7-6 are V-shaped inclined planes, the outer sides of the wedge-shaped blocks 7-6 are wedge-shaped, the upper ends of the wedge-shaped blocks are outwards protruded, the pushing rods 7-2 move downwards and extend into the V-shaped inclined planes through the pushing blocks 7-3 to force the wedge-shaped blocks 7-6 to move towards the outer sides of the openings, so that the wedge-shaped structures on the outer sides of the wedge-shaped blocks 7-6 are firmly pricked into soil, and the supporting stability of the supporting rods 7 is enhanced.

Further, a second sliding groove 7-7 is formed in the inner surface of the upper end of the fixed barrel 7-1, a second sliding block 7-8 is arranged in the second sliding groove 7-7, the second sliding block 7-8 is fixed to the outer wall of the pushing rod 7-2, and the pushing rod 7-2 is in sliding connection with the second sliding groove 7-7 through the second sliding block 7-8, so that stability of the pushing rod 7-2 in moving up and down is improved.

Specifically, the movement adjusting mechanism 6 comprises a stud 6-1, grooves are formed in two sides of the upper end inside the protective box 2, the stud 6-1 is horizontally installed at the upper end inside the protective box 2, two ends of the stud are rotatably located in the grooves, a threaded sleeve 6-2 is symmetrically sleeved on the stud 6-1, namely, a threaded sleeve 6-2 is sleeved on left-handed threads and right-handed threads of the stud 6-1 respectively, and a connecting block 6-3 is fixed at the lower end of the threaded sleeve 6-2, and the connecting blocks 6-3 are connected with the top of the protective frame 4 respectively.

The top of the protection box 2 is provided with a mounting hole, the mounting hole is communicated with the inside of the box body of the protection box 2, an adjusting rod 6-4 is inserted into the mounting hole, a first bevel gear 6-5 is fixed at the lower end of the adjusting rod 6-4, a second bevel gear 6-6 is fixedly sleeved at the middle part of the stud 6-1, the second bevel gear 6-6 is meshed with the first bevel gear 6-5, when the adjusting rod 6-4 rotates along the mounting hole, the first bevel gear 6-5 drives the second bevel gear 6-6 to rotate, the stud 6-1 rotates, so that screw sleeves 6-2 at two ends respectively drive connecting blocks 6-3, the connecting blocks 6-3 drive corresponding protection frames 4 to move left and right, the two protection frames 4 can be mutually far away from or mutually close to each other, adjustment of a protection range is realized, and the protection effect of tunnel blasting is improved.

Further, a circular ring groove 6-7 is transversely formed in the middle of the mounting hole, a circular ring plate 6-8 is rotatably connected to the circular ring groove 6-7, the adjusting rod 6-4 is inserted into the mounting hole, the circular ring plate 6-8 is sleeved on the adjusting rod 6-4, and therefore stability of the adjusting rod 6-4 during rotation is improved.

In addition, a third sliding groove 6-9 is relatively formed in the bottom of the protective box 2, third sliding blocks 6-10 are fixed in the third sliding grooves 6-9, and the third sliding blocks 6-10 are respectively fixed with the lower ends of the corresponding protective frames 4, so that the protective frames 4 can stably move.

Further, in order to facilitate the rotation of the adjusting rod 6-4, a rotating handle 6-11 is fixed at the upper end of the adjusting rod 6-4.

The working process of the protection device is as follows:

when the device is used, firstly, the supporting plate 1 is placed at a proper position outside a tunnel portal, the four fixing cylinders 7-1 extend into the ground, then the pushing rod 7-2 is pushed, the two wedge-shaped blocks 7-6 are forced to move outwards and are pricked into the soil, the supporting plate 1 is reliably fixed outside the tunnel portal, then the adjusting rod 6-4 is rotated, the second bevel gear 6-6 is driven by the first bevel gear 6-5, the stud 6-1 is enabled to rotate, the two protection frames 4 are driven by the threaded sleeve 6-2 and the connecting block 6-3 on the stud 6-1 to be mutually far away, the protection range is adjusted, the protection requirements of different tunnels are met, and the protection effect is improved. Of course, the utility model can be used for protecting tunnel openings and also can be used for other scenes suitable for engineering blasting.

The foregoing is a further detailed description of the utility model in connection with the preferred embodiments, and it is not intended that the utility model be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the utility model, and these should be considered to be within the scope of the utility model.

Claims

1. The engineering blasting protection device is characterized by comprising a supporting plate, wherein a supporting rod is fixed on the supporting plate, and a protection box is fixed at the upper end of the supporting plate; the front end and the rear end of the protective box are symmetrically provided with openings, and a first protective net is arranged in each opening; the left end and the right end of the protective box are symmetrically provided with adjusting channels, protective frames are oppositely arranged in the adjusting channels, second protective nets are arranged in the protective frames, and the protective frames can move left and right along the corresponding adjusting channels; the upper end of the protective box is provided with a movable adjusting mechanism, the movable adjusting mechanism is connected with the top of the protective frame, and the protective frame is driven to be close to or far away from each other through the movable adjusting mechanism.

2. The engineering blasting protection device according to claim 1, wherein the supporting rod comprises a fixed cylinder vertically fixed on four corners of the supporting plate, the lower end of the fixed cylinder is conical, a pushing rod is inserted into the upper end of the fixed cylinder, and a pushing block is connected to the lower end of the pushing rod; the lower end of the fixed cylinder is provided with a through hole, wedge-shaped blocks are oppositely arranged in the through hole, and the wedge-shaped blocks are in sliding connection with the through hole; the outer side of the wedge-shaped block is a wedge-shaped with the upper end protruding outwards, and the opposite surface is a V-shaped inclined surface.

3. An engineering blasting protecting device according to claim 2, wherein a first chute is provided in the through hole, and the wedge is slidably connected to the first chute via a first slider.

4. An engineering blasting protecting apparatus according to claim 3, wherein the upper end inner surface of the fixed barrel is provided with a second chute, and the pushing rod is slidably connected with the second chute through a second slider.

5. The engineering blasting protection device according to claim 1, wherein the movement adjusting mechanism comprises a stud bolt which is horizontally arranged between the left end and the right end of the upper part in the protection box, threaded sleeves are symmetrically sleeved on the stud bolt, and the threaded sleeves are respectively connected with the top of the protection frame through connecting blocks; the top of protective housing is installed and is adjusted the pole, the lower extreme of adjusting the pole is fixed with first conical gear, the fixed cover in middle part of stud is equipped with second conical gear, just second conical gear and first conical gear meshing.

6. The engineering blasting protecting device according to claim 5, wherein a mounting hole is formed in the top end of the protecting box, a circular ring groove is transversely formed in the middle of the mounting hole, a circular ring plate is rotationally connected to the circular ring groove, the adjusting rod is inserted into the mounting hole, and the circular ring plate is fixedly sleeved on the adjusting rod.

7. The engineering blasting protecting device according to claim 6, wherein a third sliding groove is formed in the bottom of the protecting box, and the lower end of the protecting frame is slidably connected with the third sliding groove through a third sliding block.

8. An engineering blast protection device according to claim 7, wherein a rotary handle is fixed to the upper end of the adjusting rod.