Protective longitudinal beam of operation trolley

Abstract

The utility model discloses an operation trolley protection longitudinal beam which comprises a trolley body and a tunnel face, the upper side of the trolley body is fixedly connected with a hinge, the outer portion of the hinge is rotationally connected with stand columns, the upper sides of the stand columns are fixedly connected with longitudinal I-shaped steel beams, the outer portions of the two stand columns are fixedly connected with connecting blocks, and through holes are formed in the outer portions of the connecting blocks. Fixed longitudinal beams are inserted into the through holes, transverse battens are inserted into the upper sides of the longitudinal I-shaped steel beams, mounting bases are inserted into the upper sides of the transverse battens, blocking mechanisms are mounted on the upper sides of the mounting bases, and longitudinal battens are stacked on the inner sides of the mounting bases. According to the device, the safety protection longitudinal beams are additionally arranged on the refittable rack, the device has the advantages of being high in applicability, capable of being used and supported at any time and free of influence on walking of the trolley, the detachable batten supporting pads are used, the height can be adjusted according to needs, the safety coefficient is improved, when the strength of sprayed concrete does not reach a design value, the loading capacity of an arch frame is improved, and the rockburst risk is effectively solved in an arching section.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction, and particularly relates to a protective longitudinal beam of a working trolley. Background Art

[0002] In tunnel and underground engineering operations, as a key construction equipment, the safety and stability of the working trolley are directly related to the construction efficiency and the safety of the operators. Traditional working trolleys often focus on the realization of basic functions in design, but there are many deficiencies in safety protection and adaptability. Especially in complex geological conditions, such as frequent rock bursts and unqualified shotcrete strength, the protection ability of traditional trolleys is particularly weak.

[0003] First of all, traditional working trolleys usually lack a sufficient closed protection structure and cannot effectively resist the impact of sudden geological disasters such as rock bursts on operators and equipment. Secondly, during the walking and operation of the trolley, the structural stability is easily affected by changes in geological conditions, especially in complex working conditions such as large-slope and small-radius curve tunnels, there are more safety hazards. In addition, traditional trolleys often lack flexibility in design and are difficult to meet the requirements of different tunnel cross-sections, resulting in low construction efficiency. Therefore, in view of the above technical problems, a protective longitudinal beam of a working trolley is proposed here. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a protective longitudinal beam of a working trolley, which can be used to retrofit the gantry by adding a safety protection longitudinal beam, with the characteristics of strong applicability, being supported as needed, not affecting the walking of the trolley, and using detachable wooden squares for padding, the height can be adjusted as required, improving the safety factor, enhancing the load-bearing capacity of the arch frame when the strength of the shotcrete does not reach the design value, and effectively solving the rock burst risk in the arch-forming section.

[0005] The utility model is realized through the following technical solutions:

[0006] A protective longitudinal beam of a working trolley includes a trolley body and a tunnel surface. Four groups of hinges arranged in an array are fixedly connected to the upper side of the trolley body. A column is rotatably connected to the outside of the hinge. A longitudinal I-shaped steel beam is fixedly connected to the upper side of the column. Connecting blocks are fixedly connected to the outside of the two columns. A through hole is opened in the outside of the connecting block. A fixed longitudinal beam is inserted into the through hole. Two longitudinally arranged transverse wooden squares are inserted into the upper side of the longitudinal I-shaped steel beam. Two transversely arranged mounting seats are inserted into the upper side of the transverse wooden square. A blocking mechanism is installed on the upper side of the mounting seat. Longitudinal wooden squares are stacked inside the mounting seat, and the longitudinal wooden squares are in contact with the tunnel surface.

[0007] Preferably, a connecting rod is fixedly connected between the two longitudinally arranged columns.

[0008] Preferably, a first jack is provided on the upper side of the longitudinal I-beam, a first plug rod is fixedly connected to the bottom of the transverse wooden square, and the first plug rod is matched with the first jack.

[0009] Preferably, a second jack is provided on the upper side of the transverse wooden square, a second plug rod is fixedly connected to the bottom of the mounting seat, and the second plug rod is matched with the second jack.

[0010] Preferably, the blocking mechanism includes a baffle and a spring. The baffle is slidably connected to the upper side of the mounting seat, and the number of baffles is two and they are arranged symmetrically. A spring is fixedly connected between the bottom of the baffle and the mounting seat, and the longitudinal wooden square is located between the two baffles.

[0011] Preferably, a guardrail is fixedly connected to the upper side of the trolley body.

[0012] The technical solution of the present utility model has at least the following beneficial effects:

[0013] A protective longitudinal beam for an operation trolley proposed by the present utility model utilizes the vault space to add four hinges and install four columns to form a closed loop, which can form a closed protection form. And it is installed by means of plugging, which is not only convenient for quick disassembly and assembly but also for strengthening the structural stability. The detachable longitudinal wooden square is used for padding and filling to the vault position, and finally a closed loop is formed. The bench can be refitted to add a safety protection longitudinal beam, which has the characteristics of strong applicability, being supported as needed, and not affecting the walking of the trolley. Moreover, the use of detachable wooden square pads allows the height to be adjusted as required, improving the safety factor. When the strength of the shotcrete does not reach the design value, the load-bearing capacity of the arch frame is enhanced, and the risk of rock burst is effectively solved in the arch-forming section. And due to the existence of the baffle, it can adapt to various tunnel surfaces and provide a certain supporting effect for the filling of the longitudinal wooden square. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the construction schematic diagram of the present utility model;

[0015] Figure 2 is the overall structural schematic diagram of the present utility model;

[0016] Figure 3 is Figure 2 the enlarged view of A in

[0017] Figure 4 is Figure 2 the enlarged view of B in

[0018] Figure 5 is the partial side sectional view of the present utility model;

[0019] Figure 6 is Figure 5 the enlarged view of C in

[0020] Figure 7 For Figure 1 An enlarged view of D in;

[0021] Icon: 1. Trolley body; 2. Tunnel surface; 3. Hinge; 4. Column; 5. Connecting rod; 6. Longitudinal I-beam; 7. Connecting block; 8. Through hole; 9. Fixed longitudinal beam; 10. Transverse wooden square; 11. First jack; 12. First plug; 13. Mounting seat; 14. Second jack; 15. Second plug; 16. Baffle; 17. Spring; 18. Longitudinal wooden square; 19. Guardrail. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figure 1-7 , a protective longitudinal beam for an operation trolley proposed by the present invention, including a trolley body 1 and a tunnel surface 2. Four groups of hinges 3 arranged in an array are fixedly connected to the upper side of the trolley body 1. A column 4 is rotatably connected to the outside of the hinge 3. A longitudinal I-beam 6 is fixedly connected to the upper side of the column 4. Connecting blocks 7 are fixedly connected to the outside of the two columns 4. A through hole 8 is opened in the outside of the connecting block 7. A fixed longitudinal beam 9 is inserted into the inside of the through hole 8. Two longitudinally arranged transverse wooden squares 10 are inserted into the upper side of the longitudinal I-beam 6. Two transversely arranged mounting seats 13 are inserted into the upper side of the transverse wooden square 10. A blocking mechanism is installed on the upper side of the mounting seat 13. Longitudinal wooden squares 18 are stacked inside the mounting seat 13, and the longitudinal wooden squares 18 are in contact with the tunnel surface 2.

[0024] A connecting rod 5 is fixedly connected between the two longitudinally arranged columns 4. The two columns 4 can be connected through the connecting rod 5, which is convenient for building a closed mounting frame.

[0025] A first jack 11 is opened on the upper side of the longitudinal I-beam 6. A first plug 12 is fixedly connected to the bottom of the transverse wooden square 10, and the first plug 12 matches the first jack 11. By using the first plug 12 and the first jack 11 in cooperation, it is convenient to quickly disassemble and assemble the longitudinal I-beam 6 and the transverse wooden square 10.

[0026] A second jack 14 is provided on the upper side of the horizontal wooden square 10. A second plug rod 15 is fixedly connected to the bottom of the mounting seat 13, and the second plug rod 15 is matched with the second jack 14. By using the second jack 14 and the second plug rod 15 in cooperation, the disassembly and assembly between the horizontal wooden square 10 and the mounting seat 13 can be carried out quickly.

[0027] The blocking mechanism includes a baffle 16 and a spring 17. The baffle 16 is slidably connected to the upper side of the mounting seat 13, and the number of baffles 16 is two and they are arranged symmetrically. A spring 17 is fixedly connected between the bottom of the baffle 16 and the mounting seat 13. The longitudinal wooden square 18 is located between the two baffles 16.

[0028] A guardrail 19 is fixedly connected to the upper side of the trolley body 1. The guardrail 19 can prevent workers from falling accidentally when constructing on the top of the trolley.

[0029] Based on the working principle of a working trolley protection longitudinal beam in the embodiment, four hinges 3 are added by using the vault space, four columns 4 are installed to form a closed loop, longitudinal I-beams 6 are installed on both sides of the top, connection blocks 7 are installed between the columns 4, and they are connected through the fixed longitudinal beam 9 to form a closed protection form. And the horizontal wooden square 10 and the mounting seat 13 are installed on the longitudinal I-beam 6 by a plug-in method, which is not only convenient for quick disassembly and assembly but also convenient for enhancing the structural stability. After the mounting seat 13 is built, the detachable longitudinal wooden square 18 is used for padding and filling to the vault position, and finally a closed loop is formed. The modified gantry is provided with a safety protection longitudinal beam, which has the characteristics of strong applicability, being supported as needed, not affecting the trolley walking, and using detachable wooden squares for padding, the height can be adjusted as required, the safety factor is improved, when the strength of the shotcrete does not reach the design value, the load-bearing capacity of the arch frame is enhanced, the risk of rock burst is effectively solved in the arching section, and due to the existence of the baffle 16, it can be adaptively adapted to various tunnel surfaces 2 and provides a certain supporting effect for filling the longitudinal wooden square 18.

[0030] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A protective longitudinal beam for a working trolley, comprising a trolley body (1) and a tunnel surface (2), characterized in that: Four groups of hinges (3) arranged in an array are fixedly connected to the upper side of the trolley body (1). A column (4) is rotatably connected to the outside of the hinge (3). A longitudinal I-beam (6) is fixedly connected to the upper side of the column (4). Connecting blocks (7) are fixedly connected to the outside of the two columns (4). A through hole (8) is formed in the outside of the connecting block (7). A fixed longitudinal beam (9) is inserted into the through hole (8). Two longitudinally arranged transverse wooden beams (10) are inserted into the upper side of the longitudinal I-beam (6). Two transversely arranged mounting seats (13) are inserted into the upper side of the transverse wooden beam (10). A blocking mechanism is installed on the upper side of the mounting seat (13). Longitudinal wooden beams (18) are stacked inside the mounting seat (13), and the longitudinal wooden beams (18) are in contact with the tunnel surface (2).

2. The protective longitudinal beam of a working trolley according to claim 1, characterized in that: A connecting rod (5) is fixedly connected between the two longitudinally arranged columns (4).

3. The protective longitudinal beam of a working trolley according to claim 1, characterized in that: A first insertion hole (11) is formed in the upper side of the longitudinal I-beam (6). A first insertion rod (12) is fixedly connected to the bottom of the transverse wooden beam (10), and the first insertion rod (12) matches the first insertion hole (11).

4. A protective longitudinal beam of a working trolley according to claim 1, characterized in that: A second insertion hole (14) is formed in the upper side of the transverse wooden beam (10). A second insertion rod (15) is fixedly connected to the bottom of the mounting seat (13), and the second insertion rod (15) matches the second insertion hole (14).

5. A protective longitudinal beam for a working trolley according to claim 1, characterized in that: The blocking mechanism includes a baffle (16) and a spring (17). The baffle (16) is slidably connected to the upper side of the mounting seat (13), and the number of the baffles (16) is two and they are symmetrically arranged. A spring (17) is fixedly connected between the bottom of the baffle (16) and the mounting seat (13). The longitudinal wooden beam (18) is located between the two baffles (16).

6. The protective longitudinal beam of a working trolley according to claim 1, characterized in that: A guardrail (19) is fixedly connected to the upper side of the trolley body (1).

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