Polishing device for secondary lining annular construction joint of highway tunnel

Abstract

The utility model provides a highway tunnel secondary lining annular construction joint polishing device which comprises an angle grinder body and a lifting device, and the angle grinder body is detachably connected with the lifting device through a connecting base. The lifting device comprises a hollow outer rod and a lifting inner rod capable of moving up and down relative to the hollow outer rod; the connecting base comprises a first connecting piece capable of rotating in the radial direction relative to the lifting device, a second connecting piece fixedly connected with the lifting inner rod and a third connecting piece detachably connected with the angle grinder body, the height of the angle grinder body can be adjusted according to the height position of a construction joint, and meanwhile the angle grinder body can be adjusted according to the height position of the construction joint. The angle of the angle grinder body is adjusted according to the angle of the construction joint, and the effects of convenient installation and convenient height and angle adjustment are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of highway tunnel construction, in particular to a highway tunnel secondary lining annular construction joint grinding device. Background Art

[0002] The concrete lining of high-speed railway tunnels inevitably needs to be equipped with construction joints and deformation joints due to factors such as construction technology, changes in surrounding rock, and allowable settlement of the tunnel. At present, according to the requirements of high-speed railway operation safety, the railway engineering department clearly requires during the acceptance and handover of tunnel projects that the construction joints of the tunnel lining must be dense and smooth, without any visible virtual edges or cracks, and the entire circumferential joints must be tested for acceptance by tapping. Angle grinders are usually used for renovation at the construction site.

[0003] When grinding, construction workers directly use angle grinders to grind construction joints at lower positions. When the construction joints are at higher positions, construction workers often need to use auxiliary lifting devices to grind the construction joints. However, during the grinding process, frequently moving the lifting device according to the position of the construction joints is time-consuming and labor-intensive, which reduces the grinding efficiency. Summary of the invention

[0004] In order to solve the above problems, the utility model provides a road tunnel secondary lining annular construction joint grinding device, which can adjust the height of the angle grinder body according to the height position of the construction joint, and at the same time, adjust the angle of the angle grinder body according to the angle of the construction joint, so as to achieve the effect of convenient installation, convenient height adjustment and convenient angle adjustment. It solves the problem that when the construction joint is at a high position, construction personnel often need to use auxiliary lifting devices to grind the construction joint, and it is time-consuming and labor-intensive to frequently move the lifting device according to the position of the construction joint during the grinding process, and the grinding efficiency is low.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a device for grinding the annular construction joints of the second lining of a highway tunnel, comprising an angle grinder body and a lifting device, wherein the angle grinder body and the lifting device are detachably connected via a connecting seat; the lifting device comprises a hollow outer rod and a lifting inner rod that can move up and down relative to the hollow outer rod; the connecting seat comprises a first connecting member that can rotate radially relative to the lifting device, a second connecting member fixedly connected to the lifting inner rod, and a third connecting member detachably connected to the angle grinder body. In use, the height of the lifting inner rod relative to the hollow outer rod is adjusted to adjust the height of the angle grinder body, the angle between the first connecting member and the lifting device is rotated to adjust the angle of the angle grinder body.

[0006] The angle grinder body and the lifting device are detachably connected via a connecting seat, and assembly and disassembly are convenient; the lifting device comprises a hollow outer rod and a lifting inner rod which can move up and down relative to the hollow outer rod, and the connecting seat comprises a first connecting member which can rotate radially relative to the lifting device, a second connecting member which is fixedly connected to the lifting inner rod, and a third connecting member which is detachably connected to the angle grinder body. When in use, the construction height of the angle grinder body is adjusted according to the position of the construction joint. When the construction joint is at a lower position, the construction personnel can directly hold the angle grinder body to grind the construction joint. When the construction joint is at a higher position, the user can assemble the angle grinder body and the lifting device, and adjust the height position of the angle grinder body by adjusting the extension length of the lifting inner rod in the hollow outer rod. No auxiliary lifting device is required, and the use is relatively convenient. At the same time, the angle between the first connecting member and the lifting device can be rotated to adjust the angle of the angle grinder body.

[0007] Preferably, the first connecting member is a rotating block, which is threadedly connected to the second connecting member and can rotate relative to the second connecting member.

[0008] When in use, the angle of the angle grinder body can be adjusted by rotating the rotating block and the second connecting member.

[0009] Preferably, the second connecting member is a U-shaped seat, the bottom of the U-shaped seat is fixedly connected to the lifting inner rod, and the opening of the U-shaped seat is rotatably connected to the rotating block through a first bolt; the rotating block is an inverted U-shaped opening direction that is opposite to and crosses the opening direction of the U-shaped seat, and the top of the rotating block is fixedly connected to the third connecting seat.

[0010] By setting a U-shaped seat and a rotating block, the grinding angle of the angle grinder body can be adjusted according to the actual situation of the tunnel during use. When adjusting, the first bolt can be loosened, and the rotating block can rotate in the U-shaped seat. After the angle is adjusted, the first bolt can be tightened to fix it.

[0011] Preferably, the third connecting member is a threaded column, a threaded barrel is fixed below the angle grinder body, and the threaded column is threadedly connected to the threaded barrel.

[0012] The threaded connection between the threaded column and the threaded barrel is convenient for disassembly and installation.

[0013] Preferably, the lifting device comprises a lifting seat and a handle, the bottom of the lifting seat is rotatably connected to the bottom of the hollow outer rod, and the top of the lifting seat is threadedly connected to the lifting inner rod; the handle is used to drive the lifting seat to rotate, thereby driving the lifting inner rod to rise and fall.

[0014] Preferably, the lifting seat comprises a first rotating shaft rotatably connected to the hollow outer rod, a first screw rod threadedly connected to the inner wall of the lifting inner rod, a first bevel gear arranged at the top of the first rotating shaft, and a second bevel gear meshing with the first bevel gear; the surface of the hollow outer rod is rotatably connected to the first rotating rod, the inner end of the first rotating rod is fixedly connected to the second bevel gear, and the outer end of the first rotating rod is connected to the handle; when the handle is rotated, the first rotating rod is driven to rotate, the second bevel gear is driven to rotate, the first bevel gear is driven to rotate, and the first screw rod is driven to rotate, so that the lifting inner rod moves up and down in the hollow outer rod.

[0015] When making adjustments, the construction worker can turn the handle to drive the first rotating rod to rotate, and the second bevel gear to rotate through the first rotating rod, and the first bevel gear to rotate through the second bevel gear, and the first bevel gear to rotate and then drive the first screw to rotate, and the first screw rotation will then cause the lifting inner rod to move in the hollow outer rod, thereby adjusting the height position of the angle grinder body.

[0016] Preferably, a limiting slider is symmetrically fixedly connected to the surface of the lifting inner rod, and the limiting slider is slidably connected to the hollow outer rod.

[0017] The lifting inner rod can be limited.

[0018] Preferably, an auxiliary lighting lamp is fixedly mounted on the surface of the hollow outer rod; and, or a grip ring is fixedly connected to the lower half of the surface of the hollow outer rod; and, or a cable tie ring is fixedly connected to the surface of the hollow outer rod.

[0019] The auxiliary lighting can provide auxiliary lighting for the construction joints to prevent the construction workers from having difficulty seeing the construction joints due to dim light, thereby improving the accuracy of grinding; the grip ring is convenient for construction workers to hold; the cable tie ring can tie the power cord.

[0020] Preferably, a ratchet is fixedly sleeved on the surface of the first rotating rod, a mounting block is fixedly connected to the surface of the hollow outer rod, sliding rods are fixedly connected to the mounting grooves symmetrically opened inside the mounting blocks, a moving block is slidably sleeved on the surface of the sliding rod, a pawl is fixedly connected between the two moving blocks, the pawl is slidably connected to the mounting block, the pawl is clamped between the teeth on the surface of the ratchet, and a reset spring is fixedly connected between the moving block and the mounting block.

[0021] The setting of the ratchet pawl can limit the adjustment position of the lifting inner rod.

[0022] Preferably, a small vacuum cleaner is fixedly connected to the outer side of the top end of the inner lifting rod, the input end of the small vacuum cleaner is connected to a bellows capable of hovering, and the input end of the bellows is connected to a suction hood.

[0023] Through the work of a small vacuum cleaner, the suction hood is moved to the grinding place through the bellows, which can collect the grinding dust to a certain extent, facilitating the continuous and healthy work of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0025] Figure 2 This is a connection structure diagram of the U-shaped seat and the rotating block in the utility model.

[0026] Figure 3 It is a cross-sectional view of the connection between the hollow outer rod and the lifting inner rod of the utility model.

[0027] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle.

[0028] Figure 5 This is a position structure diagram of the ratchet and pawl in the utility model.

[0029] Figure 6 for Figure 5 Enlarged structural diagram at point B in the middle.

[0030] Figure 7 This is a structural diagram of a further angle grinder body and a lifting inner rod in the utility model.

[0031] Explanation of the numbers in the above drawings: 1. Angle grinder body; 2. Threaded barrel; 3. Hollow outer rod; 4. Lifting inner rod; 5. U-shaped seat; 6. Rotating block; 7. Threaded column; 8. Auxiliary lighting lamp; 9. Cable tie ring; 10. Holding ring; 11. Limiting slider; 12. First screw rod; 13. First rotating shaft; 14. First bevel gear; 15. Second bevel gear; 16. First rotating rod; 17. Handle; 18. Ratchet; 19. Mounting block; 20. Sliding rod; 21. Ratchet; 22. Moving block; 23. Reset spring; 24. Small vacuum cleaner; 25. Bellows; 26. Suction hood. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-7 The utility model is further described in detail with specific implementation modes, but they are not limitations of the utility model.

[0033] In the description of the present utility model, it is necessary to understand that the terms "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] Example

[0036] Example 1

[0037] like Figure 1-7 The device shown is a grinding device for the annular construction joint of the secondary lining of a highway tunnel, comprising an angle grinder body 1 and a lifting device, wherein the angle grinder body 1 is detachably connected to the lifting device via a connecting seat; the lifting device comprises a hollow outer rod 3 and a lifting inner rod 4 that can move up and down relative to the hollow outer rod 3; the connecting seat comprises a first connecting member that can rotate radially relative to the lifting device, a second connecting member fixedly connected to the lifting inner rod 4, and a third connecting member detachably connected to the angle grinder body 1. In use, the height of the lifting inner rod 4 relative to the hollow outer rod 3 is adjusted, the height of the angle grinder body 1 is adjusted, the angle between the first connecting member and the lifting device is rotated, and the angle of the angle grinder body 1 is adjusted.

[0038] The angle grinder body 1 and the lifting device are detachably connected via a connecting seat, and assembly and disassembly are convenient; the lifting device comprises a hollow outer rod 3 and a lifting inner rod 4 which can move up and down relative to the hollow outer rod 3; the connecting seat comprises a first connecting member which can rotate radially relative to the lifting device, a second connecting member which is fixedly connected to the lifting inner rod 4, and a third connecting member which is detachably connected to the angle grinder body 1; when in use, the construction height of the angle grinder body 1 is adjusted according to the position of the construction joint; when the construction joint is at a lower position, the construction personnel can directly hold the angle grinder body 1 to grind the construction joint; when the construction joint is at a higher position, the user can assemble the angle grinder body 1 with the lifting device, and adjust the height position of the angle grinder body 1 by adjusting the extension length of the lifting inner rod 4 in the hollow outer rod 3, without the aid of an auxiliary lifting device, and is convenient to use; at the same time, the angle between the first connecting member and the lifting device can be rotated to adjust the angle of the angle grinder body 1.

[0039] In a specific example, the first connecting member is a rotating block 6, which is threadedly connected to the second connecting member and can rotate relative to the second connecting member.

[0040] When in use, the angle of the angle grinder body 1 can be adjusted by rotating the rotating block 6 and the second connecting member.

[0041] In a specific example, the second connecting member is a U-shaped seat 5, the bottom of the U-shaped seat 5 is fixedly connected to the lifting inner rod 4, and the opening of the U-shaped seat 5 is rotatably connected to the rotating block 6 through a first bolt; the rotating block 6 is an inverted U-shaped opening direction that is opposite to and crosses the opening direction of the U-shaped seat 5, and the top of the rotating block 6 is fixedly connected to the third connecting seat.

[0042] By setting the U-shaped seat 5 and the rotating block 6, the grinding angle of the angle grinder body 1 can be adjusted according to the actual situation of the tunnel during use. When adjusting, the first bolt can be loosened, and the rotating block 6 can rotate in the U-shaped seat 5. After the angle is adjusted, the first bolt can be tightened to achieve fixation.

[0043] In a specific example, the third connecting member is a threaded column 7 , a threaded barrel 2 is fixed below the angle grinder body 1 , and the threaded column 7 is threadedly connected to the threaded barrel 2 .

[0044] The threaded connection between the threaded column 7 and the threaded barrel 2 is convenient for disassembly and installation.

[0045] In a specific example, the lifting device includes a lifting seat and a handle 17. The bottom of the lifting seat is rotatably connected to the bottom of the hollow outer rod 3, and the top of the lifting seat is threadedly connected to the lifting inner rod 4. The handle 17 is used to drive the lifting seat to rotate, thereby driving the lifting inner rod 4 to rise and fall.

[0046] In a specific example, the lifting seat includes a first rotating shaft 13 rotatably connected to the hollow outer rod 3, a first screw 12 threadedly connected to the inner wall of the lifting inner rod 4, a first bevel gear 14 arranged at the top of the first rotating shaft 13, and a second bevel gear 15 meshing with the first bevel gear 14; the surface of the hollow outer rod 3 is rotatably connected with a first rotating rod 16, the inner end of the first rotating rod 16 is fixedly connected to the second bevel gear 15, and the outer end of the first rotating rod 16 is connected to the handle 17; when the handle 17 rotates, it drives the first rotating rod 16 to rotate, drives the second bevel gear 15 to rotate, drives the first bevel gear 14, and drives the first screw 12 to rotate, so that the lifting inner rod 4 moves up and down in the hollow outer rod 3.

[0047] When making adjustments, the construction personnel can rotate the handle 17, and the handle 17 drives the first rotating rod 16 to rotate, and the first rotating rod 16 drives the second bevel gear 15 to rotate, and the second bevel gear 15 drives the first bevel gear 14 to rotate, and the first bevel gear 14 drives the first screw rod 12 to rotate, and the first screw rod 12 rotates to make the lifting inner rod 4 move in the hollow outer rod 3, thereby adjusting the height position of the angle grinder body 1.

[0048] In a specific example, a limiting slider 11 is symmetrically fixedly connected to the surface of the lifting inner rod 4 , and the limiting slider 11 is slidably connected to the hollow outer rod 3 .

[0049] The lifting inner rod 4 can be limited.

[0050] Specifically, an auxiliary lighting lamp 8 is fixedly mounted on the surface of the hollow outer rod 3; or a grip ring 10 is fixedly connected to the lower half of the surface of the hollow outer rod 3; or a cable tie ring 9 is fixedly connected to the surface of the hollow outer rod 3.

[0051] When using this device to grind the construction joint, first adjust the construction height of the angle grinder body 1 according to the position of the construction joint. When the construction joint is at a lower position, the construction personnel can directly hold the angle grinder body 1 to grind the construction joint. When the construction joint is at a higher position, the user can fix the angle grinder body 1 and the lifting inner rod 4, and adjust the height position of the angle grinder body 1 by adjusting the extension length of the lifting inner rod 4 in the hollow outer rod 3. When adjusting, the construction personnel can turn the handle 17, and the first rotating rod 16 is driven to rotate by the handle 17, and the second bevel gear 15 is driven to rotate by the rotation of the first rotating rod 16, and the first bevel gear 14 is driven to rotate by the rotation of the second bevel gear 15, and the first bevel gear 14 is driven to rotate by the rotation of the first bevel gear 14, and the first screw 12 is driven to rotate by the rotation of the first screw 12, and the lifting inner rod 4 is moved in the hollow outer rod 3, thereby realizing the adjustment of the height position of the angle grinder body 1, without the aid of an auxiliary lifting device, and is more convenient to use. The auxiliary lighting lamp 8 can provide auxiliary lighting for the construction joint to prevent the construction workers from having difficulty seeing the construction joint position due to dim light, thereby improving the accuracy of grinding; the holding ring 10 is convenient for construction workers to hold; the cable tie ring 9 can tie the power cord.

[0052] It should be noted that the angle grinder body 1 is prior art.

[0053] Example 2

[0054] Embodiment 2 is an improvement on Embodiment 1. Figure 1-7 As shown, a ratchet 18 is fixedly sleeved on the surface of the first rotating rod 16, a mounting block 19 is fixedly connected to the surface of the hollow outer rod 3, sliding rods 20 are fixedly connected in the mounting grooves symmetrically opened inside the mounting block 19, a moving block 22 is slidably sleeved on the surface of the sliding rod 20, a pawl 21 is fixedly connected between the two moving blocks 22, the pawl 21 and the mounting block 19 are slidably connected, the pawl 21 is stuck between the teeth on the surface of the ratchet 18, and a reset spring 23 is fixedly connected between the moving block 22 and the mounting block 19.

[0055] The arrangement of the ratchet 18 and the pawl 21 can limit the adjustment position of the lifting inner rod 4.

[0056] In some embodiments, a small vacuum cleaner 24 is fixedly connected to the outer side of the top end of the lifting inner rod 4, and the input end of the small vacuum cleaner 24 is connected to a hovering bellows 25, and the input end of the bellows 25 is connected to a suction hood 26.

[0057] Through the operation of the small vacuum cleaner 24, the suction hood 26 is moved to the grinding site through the bellows 25, which can collect the grinding dust to a certain extent, facilitating the continuous and healthy work of the staff.

[0058] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0059] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention.

Claims

1. A device for grinding the annular construction joint of the secondary lining of a highway tunnel, comprising an angle grinder body (1) and a lifting device, characterized in that: The angle grinder body (1) is detachably connected to the lifting device via a connecting seat; The lifting device comprises a hollow outer rod (3) and a lifting inner rod (4) which can move up and down relative to the hollow outer rod (3); The connecting seat comprises a first connecting member which can rotate radially relative to the lifting device, a second connecting member which is fixedly connected to the lifting inner rod (4), and a third connecting member which is detachably connected to the angle grinder body (1). When in use, the height of the lifting inner rod (4) relative to the hollow outer rod (3) is adjusted to adjust the height of the angle grinder body (1); the angle between the first connecting member and the lifting device is rotated to adjust the angle of the angle grinder body (1).

2. A highway tunnel secondary lining annular construction joint grinding device according to claim 1, characterized in that: The first connecting member is a rotating block (6) which is threadedly connected to the second connecting member and can rotate relative to the second connecting member.

3. A highway tunnel secondary lining annular construction joint grinding device according to claim 2, characterized in that: The second connecting member is a U-shaped seat (5), the bottom of the U-shaped seat (5) is fixedly connected to the lifting inner rod (4), and the opening of the U-shaped seat (5) is rotatably connected to the rotating block (6) via a first bolt; The rotating block (6) is in an inverted U-shape, the opening direction of which is opposite to and intersects with the opening direction of the U-shaped seat (5), and the top of the rotating block (6) is fixedly connected to the third connecting seat.

4. A highway tunnel secondary lining annular construction joint grinding device according to claim 1, characterized in that: The third connecting member is a threaded column (7), a threaded barrel (2) is fixed below the angle grinder body (1), and the threaded column (7) is threadedly connected to the threaded barrel (2).

5. A highway tunnel secondary lining annular construction joint grinding device according to claim 1, characterized in that: The lifting device comprises a lifting seat and a handle (17); the bottom of the lifting seat is rotatably connected to the bottom of the hollow outer rod (3); and the top of the lifting seat is threadedly connected to the lifting inner rod (4); The handle (17) is used to drive the lifting seat to rotate, thereby driving the lifting inner rod (4) to move up and down.

6. A road tunnel secondary lining annular construction joint grinding device according to claim 5, characterized in that: The lifting seat comprises a first rotating shaft (13) rotatably connected to the hollow outer rod (3), a first screw rod (12) threadedly connected to the inner wall of the lifting inner rod (4), a first bevel gear (14) arranged at the top end of the first rotating shaft (13), and a second bevel gear (15) meshing with the first bevel gear (14); The surface of the hollow outer rod (3) is rotatably connected to a first rotating rod (16), the inner end of the first rotating rod (16) is fixedly connected to the second bevel gear (15), and the outer end of the first rotating rod (16) is connected to the handle (17); When the handle (17) rotates, it drives the first rotating rod (16) to rotate, drives the second bevel gear (15) to rotate, drives the first bevel gear (14), drives the first screw rod (12) to rotate, so that the lifting inner rod (4) moves up and down in the hollow outer rod (3).

7. A road tunnel secondary lining annular construction joint grinding device according to claim 6, characterized in that: The surface of the lifting inner rod (4) is symmetrically fixedly connected to a limit slider (11), and the limit slider (11) is slidably connected to the hollow outer rod (3).

8. A road tunnel secondary lining annular construction joint grinding device according to claim 1, characterized in that: An auxiliary lighting lamp (8) is fixedly mounted on the surface of the hollow outer rod (3); or a grip ring (10) is fixedly connected to the lower half of the surface of the hollow outer rod (3); or a cable tie ring (9) is fixedly connected to the surface of the hollow outer rod (3).

9. A road tunnel secondary lining annular construction joint grinding device according to claim 6, characterized in that: A ratchet (18) is fixedly sleeved on the surface of the first rotating rod (16), a mounting block (19) is fixedly connected to the surface of the hollow outer rod (3), sliding rods (20) are fixedly connected in mounting grooves symmetrically arranged inside the mounting block (19), a moving block (22) is slidably sleeved on the surface of the sliding rod (20), a pawl (21) is fixedly connected between the two moving blocks (22), the pawl (21) and the mounting block (19) are slidably connected, the pawl (21) is clamped between the teeth on the surface of the ratchet (18), and a reset spring (23) is fixedly connected between the moving block (22) and the mounting block (19).

10. A road tunnel secondary lining annular construction joint grinding device according to claim 1, characterized in that: A small vacuum cleaner (24) is fixedly connected to the outer side of the top end of the lifting inner rod (4); the input end of the small vacuum cleaner (24) is connected to a bellows (25) capable of being suspended; and the input end of the bellows (25) is connected to an air suction hood (26).

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