Shaft mouth blasting protection device

Abstract

The utility model provides a vertical shaft mouth blasting protection device, which belongs to the technical field of blasting protection and comprises a vertical shaft retaining wall, a plurality of I-shaped support bases are fixedly connected to the top of the vertical shaft retaining wall, a longitudinal keel is mounted between two support bases, and the longitudinal keel is fixedly connected with the vertical shaft retaining wall. Clamping grooves are formed in the two sides of the longitudinal keels, the side ends of the supporting bases are clamped with the interiors of the clamping grooves, the transverse keels are fixedly connected with the interiors of the longitudinal keels, the transverse keels are uniformly distributed in the longitudinal keels, the bottoms of the longitudinal keels are fixedly connected with protective steel plates, and the protective steel plates are fixedly connected with the interiors of the supporting bases. And the bottom of the protective steel plate is fixedly connected with a silencing rubber plate. By arranging the longitudinal keels and the supporting bases, convenience of installation of the protective steel plate is improved, time for installation and disassembly is saved, and practicability of the device is improved by arranging the protective steel wire gauze and the noise reduction rubber plates.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of vertical shaft wellhead blasting protection device, and cannot limit the utility model. BACKGROUND

[0002] The blasting construction is one of the most commonly used excavation methods in foundation pit excavation and tunnel excavation engineering, but the flying stone, shock wave, vibration, noise and dust problems during blasting are recognized as blasting public nuisance, which can cause various different damages within the influence range of blasting area, such as causing slope collapse, building being cracked, etc., and also causing damage to the environment, which does not meet the green construction concept and has a major hidden danger of causing safety problems, and the foundation pit and tunnel construction often face the objective conditions of narrow space and adjacent buildings.

[0003] The existing vertical shaft wellhead blasting protection device uses channel steel to shield when in use, so as to prevent gravel from splashing, but a plurality of screws are needed to fix the protection steel plate when the channel steel is laid, so that the protection steel plate is laid more complicatedly, and the installation and disassembly are more time-consuming, so a vertical shaft wellhead blasting protection device is needed. SUMMARY

[0004] In order to solve the problem that the protection steel plate is laid more complicatedly and the installation and disassembly are more time-consuming, the utility model provides a vertical shaft wellhead blasting protection device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a vertical shaft retaining wall is provided, a support base is fixedly connected to the top of the vertical shaft retaining wall, a plurality of support bases are provided, and the support bases are in the shape of an I-beam, a longitudinal keel is installed between two support bases, a clamping groove is formed on both sides of the longitudinal keel, and the side end of the support base is clamped in the clamping groove, a transverse keel is fixedly connected to the inside of the longitudinal keel, a plurality of transverse keels are provided and evenly distributed in the inside of the longitudinal keel, a protection steel plate is fixedly connected to the bottom of the longitudinal keel, and a sound-absorbing rubber plate is fixedly connected to the bottom of the protection steel plate.

[0006] As a further description of the above technical scheme: a lifting lug is fixedly connected to the top of the longitudinal keel, four lifting lugs are provided, and the lifting lugs are symmetrically distributed on the left and right sides of the longitudinal keel in two groups.

[0007] As a further description of the above technical scheme: a plurality of longitudinal keels are provided and evenly arranged on the top of the vertical shaft retaining wall.

[0008] As a further description of the above technical scheme: a fixing block is fixedly connected to the inner side wall of the vertical shaft retaining wall, a plurality of fixing blocks are provided, and the fixing blocks are distributed in the form of a rectangle at the included angle between adjacent two vertical shaft retaining walls.

[0009] As the further description of the above technical scheme: the top of the plurality of fixed blocks is fixedly connected with a limiting column, the outer part of the limiting column is sleeved with a protective steel wire mesh, and the protective steel wire mesh is located directly below the sound-absorbing rubber plate.

[0010] As the further description of the above technical scheme: the outer part of the plurality of limiting columns is threadedly connected with a limiting cover, and the limiting cover is attached to the top of the protective steel wire mesh.

[0011] The beneficial effects of the utility model are as follows:

[0012] 1. Compared with the prior art, the vertical shaft wellhead blasting protection device, by setting longitudinal keels and support bases, when installing the protective steel plate, the clamping grooves on both sides of the longitudinal keels are clamped with the support bases, thereby realizing the installation of multiple longitudinal keels, fixing the protective steel plate above the vertical shaft retaining wall, and improving the convenience of installing the protective steel plate and saving the installation and disassembly time.

[0013] 2. Compared with the prior art, the vertical shaft wellhead blasting protection device, by setting protective steel wire meshes and sound-absorbing rubber plates, the protective steel wire meshes are used to block the stone blocks generated by the vertical shaft wellhead blasting, so that the remaining small stone blocks contact the sound-absorbing rubber plates at the bottom of the protective steel plate, thereby reducing the noise generated by blasting, and the protective steel plate is used to block the stone blocks generated by blasting again, thereby effectively preventing dust leakage, and improving the practicability of the device. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly show the vertical shaft wellhead blasting protection device, the following drawings are shown;

[0015] Figure 1 It is the overall structure schematic view of the utility model;

[0016] Figure 2 It is the internal structure schematic view of the utility model;

[0017] Figure 3 It is the internal structure schematic view of the utility model; Figure 2 The enlarged view of A in the middle;

[0018] Figure 4 The enlarged view of B in the middle of the utility model; Figure 2

[0019] Figure 5 It is the internal structure schematic view of the longitudinal keel of the utility model.

[0020] The reference signs in the drawings are as follows:

[0021] ​1, shaft retaining wall; 2, support base; 3, longitudinal keel; 4, transverse keel; 5, lifting lug; 6, protective steel plate; 7, sound-absorbing rubber plate; 8, clamping groove; 9, fixed block; 10, limiting column; 11, protective steel wire mesh; 12, limiting cover. DETAILED DESCRIPTION

[0022] REFERENCE Figures 1-5 The utility model provides a kind of shaft mouth blasting protection device of vertical shaft provided by the utility model: including shaft retaining wall 1, the top of shaft retaining wall 1 is fixedly connected with support base 2, the quantity of support base 2 is provided with multiple, and it is I-shaped, longitudinal keel 3 is installed between two support base 2, clamping groove 8 is all set in the two sides of longitudinal keel 3, and the inside of clamping groove 8 is engaged with the side end of support base 2, longitudinal keel 3 is fixedly connected with transverse keel 4 in the inside, the quantity of transverse keel 4 is provided with multiple, and it is evenly distributed in the inside of longitudinal keel 3, the bottom of longitudinal keel 3 is fixedly connected with protective steel plate 6, the bottom of protective steel plate 6 is fixedly connected with sound-absorbing rubber plate 7.In the installation protective steel plate 6, the clamping groove 8 of longitudinal keel 3 two sides is engaged with support base 2, to realize the installation of multiple longitudinal keel 3, so that protective steel plate 6 is fixed in the upper of shaft retaining wall 1, it is favorable to improve the convenience of protective steel plate 6 installation, save installation and dismounting time.

[0023] The top of longitudinal keel 3 is fixedly connected with lifting lug 5, the quantity of lifting lug 5 is provided with four, and it is symmetrically distributed in the left and right sides of longitudinal keel 3 in two groups.Longitudinal keel 3, transverse keel 4, protective steel plate 6 and sound-absorbing rubber plate 7 form protective structure, lifting lug 5 is used to conveniently hoist protective structure, to hoist the device to the upper of shaft.

[0024] The quantity of longitudinal keel 3 is provided with multiple, and it is evenly arranged in the top of shaft retaining wall 1.Multiple protective structures are arranged and distributed, to realize the overall coverage of shaft retaining wall 1.

[0025] The inside wall of shaft retaining wall 1 is fixedly connected with fixed block 9, the quantity of fixed block 9 is provided with multiple, and it is rectangularly distributed in the included angle of adjacent two shaft retaining walls 1.Fixed block 9 located at the included angle can fix shaft retaining wall 1, to enhance the stability of shaft retaining wall 1.

[0026] The top of multiple fixed blocks 9 is fixedly connected with limiting column 10, the outside of limiting column 10 is sleeved with protective steel wire mesh 11, and protective steel wire mesh 11 is located just below sound-absorbing rubber plate 7.During blasting, protective steel wire mesh 11 is used to block the stone produced by shaft mouth blasting of vertical shaft, so that the remaining small stone block contacts with sound-absorbing rubber plate 7 at the bottom of protective steel plate 6, to reduce the noise produced by blasting, and protective steel plate 6 is used to block the stone produced by blasting again, to effectively avoid dust leakage, it is favorable to improve the practicability of device.

[0027] The outer part of the plurality of limiting columns 10 is threadedly connected with a limiting cover 12, and the limiting cover 12 is in close contact with the top of the protective steel wire mesh 11. The limiting cover 12 is threadedly connected with the limiting column 10, thereby realizing the fixation of the protective steel wire mesh 11.

[0028] Working principle

[0029] When the protective steel plate 6 is installed, the clamping grooves 8 on both sides of the longitudinal keel 3 are clamped with the supporting base 2, thereby realizing the installation of a plurality of longitudinal keels 3, so that the protective steel plate 6 is fixed above the shaft retaining wall 1, which is beneficial to improve the convenience of installation of the protective steel plate 6, save the installation and disassembly time, and block the stone generated by the shaft mouth blasting of the vertical shaft by the protective steel wire mesh 11, so that the remaining small stone blocks contact with the sound-absorbing rubber plate 7 at the bottom of the protective steel plate 6, thereby reducing the noise generated by blasting, and the protective steel plate 6 is used to block the stone generated by blasting again, thereby effectively avoiding the leakage of dust, which is beneficial to improve the practicability of the device.

[0030] Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the present application cover any and all variations of the application that come within the scope of the claims and their equivalents. It is intended that the specification and examples be considered exemplary only, with the true scope and spirit of the application being indicated by the following claims.

[0031] It should be understood that the relative terms, such as "first" and "second", are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. The present application is not limited to the precise structures described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present application is only limited by the appended claims.

Claims

1. A shaft portal blast protection device comprising a shaft retaining wall (1), characterised in that: The top of the shaft retaining wall (1) is fixedly connected with a support base (2), a plurality of support bases (2) are provided and are in the shape of an I-beam, a longitudinal keel (3) is installed between two support bases (2), clamping grooves (8) are formed on the two sides of the longitudinal keel (3), and the side ends of the support base (2) are clamped with the interiors of the clamping grooves (8), a transverse keel (4) is fixedly connected with the interior of the longitudinal keel (3), a plurality of transverse keels (4) are uniformly distributed in the interior of the longitudinal keel (3), a protective steel plate (6) is fixedly connected with the bottom of the longitudinal keel (3), and a sound-absorbing rubber plate (7) is fixedly connected with the bottom of the protective steel plate (6).

2. A shaft portal blast protection apparatus according to claim 1, characterised in that: The top of the longitudinal keel (3) is fixedly connected with a lifting lug (5), four lifting lugs (5) are provided and are symmetrically distributed on the left and right sides of the longitudinal keel (3) in two groups.

3. A shaft portal blast protection apparatus as claimed in claim 2, wherein: A plurality of longitudinal keels (3) are provided and are uniformly arranged on the top of the shaft retaining wall (1).

4. A shaft portal blast protection apparatus as claimed in claim 3, wherein: The inner side wall of the shaft retaining wall (1) is fixedly connected with a fixed block (9), a plurality of fixed blocks (9) are provided and are in the shape of a rectangle and are distributed at the included angles of adjacent two shaft retaining walls (1).

5. A shaft portal blast protection apparatus as claimed in claim 4, wherein: The top of each of a plurality of fixed blocks (9) is fixedly connected with a limiting column (10), a protective steel wire mesh (11) is sleeved with the exterior of the limiting column (10), and the protective steel wire mesh (11) is located directly below the sound-absorbing rubber plate (7).

6. A shaft portal blast protection apparatus as claimed in claim 5, wherein: The exterior of each of a plurality of limiting columns (10) is threadedly connected with a limiting cover (12), and the limiting cover (12) is attached to the top of the protective steel wire mesh (11).

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