Steel-concrete composite beam bridge detection coring machine

Abstract

The utility model discloses a detection coring machine for a steel-concrete composite beam bridge. Comprising a movable base, a stand column fixed to the top of the movable base, a lead screw rotationally arranged on the inner side of the stand column, a lifting sleeve slidably arranged on the surface of the stand column in a sleeving mode, a lifting table fixed to the side face of the lifting sleeve, a motor installed on the top face of the lifting table and a driving shaft rotationally installed on the bottom face of the lifting table. The output end of the motor penetrates through the bottom of the lifting platform and is connected with a driving shaft; the surface of the bottom end of the driving shaft is sleeved with a connecting sleeve. According to the utility model, a steel-concrete composite beam bridge detection coring machine in the prior art is improved and optimized, and a quick disassembly and assembly structure is designed between the coring cylinder and the driving shaft, so that an operator can quickly finish disassembly, assembly and replacement of the coring cylinder in the actual use process; the corresponding coring cylinder can be conveniently and rapidly replaced according to actual detection requirements in the beam bridge detection coring process, and the detection work efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of core sampling machines for beam bridge inspection, and specifically relates to a core sampling machine for steel-concrete composite beam bridge inspection. Background Technology

[0002] As a core structural form of modern bridge engineering, the quality of the concrete layer of steel-concrete composite beam bridges directly affects the bridge's load-bearing capacity and durability. Core sampling, as a core means of assessing concrete strength, density, and internal defects, plays an irreplaceable role in bridge construction acceptance, defect diagnosis, and reinforcement. Existing core sampling machines generally adopt the principle of rotary drilling. For example, the existing patent with publication number CN221484847U discloses "a drilling core sampling machine, which includes a support mechanism, a drive mechanism that can move up and down, a material taking component threaded on the output shaft of the drive mechanism, a pusher plate connected to the bottom of the material taking component, a drill cylinder slidably connected to the pusher plate, and a limiting component for fixing the pusher plate on the drill cylinder." Its core component, the core taking cylinder, transmits torque and axial pressure through the drive shaft to achieve complete extraction of concrete core samples.

[0003] However, traditional core sampling machines for steel-concrete composite beam bridges often use a multi-bolt rigid connection between the core cylinder and the drive shaft. This requires manual tightening or loosening of the bolts for replacement, which is time-consuming and labor-intensive in actual disassembly and assembly. It is impossible to quickly disassemble and replace the core cylinder on site, which reduces the overall ease of use. Therefore, this utility model proposes a core sampling machine for steel-concrete composite beam bridges. Utility Model Content

[0004] The purpose of this invention is to provide a core sampling machine for testing steel-concrete composite beam bridges, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a core sampling machine for testing steel-concrete composite beam bridges, comprising...

[0006] A movable base, a column fixed to the top of the movable base, a lead screw rotatably disposed inside the column and extending to the top of the column, a lifting sleeve slidably sleeved on the surface of the column, a lifting platform fixed to the side of the lifting sleeve, a motor installed on the top surface of the lifting platform, and a drive shaft rotatably installed on the bottom surface of the lifting platform, wherein the output end of the motor extends to the bottom of the lifting platform and is connected to the drive shaft.

[0007] A connecting sleeve is fitted onto the bottom surface of the drive shaft, and a core-taking cylinder is fixed to the bottom surface of the connecting sleeve. A shaft groove for the drive shaft to be inserted is opened on the top surface of the connecting sleeve, and a quick-release structure is provided between the drive shaft and the connecting sleeve. The drive shaft includes a side plate that is movably mounted on the right side surface of the connecting sleeve. A limit block is fixed to the inner side of the top of the side plate. A limit hole corresponding to the limit block is opened through the surface of the drive shaft, and the end of the limit block extends into the limit hole.

[0008] Preferably, the quick disassembly and assembly structure further includes a side sliding groove formed on the left side surface of the connecting sleeve, and a movable seat is slidably disposed in the side sliding groove. A connecting slide rod is fixed on the right side surface of the movable seat, and the right end of the connecting slide rod extends through to the right side surface of the connecting sleeve and is fixed to the side base plate.

[0009] Preferably, the left end of the movable seat extends to the left side surface of the connecting sleeve, and a limiting structure is provided at the top of the left end of the movable seat.

[0010] Preferably, the limiting structure includes an inner groove formed inside the movable seat, a spring installed in the inner groove, and a right-angled trapezoidal telescopic block. The right-angled trapezoidal telescopic block is movably installed in the inner groove by the spring, and the top of the right-angled trapezoidal telescopic block pops out to the top of the movable seat and is located on the left side of the connecting sleeve.

[0011] Preferably, the bottom end of the spring is fixed to the inner wall of the inner groove, and the top end of the spring is fixed to the right-angled trapezoidal telescopic block.

[0012] Preferably, the right side surface of the connecting sleeve has a transverse through hole communicating with the shaft groove, and the transverse through hole is adapted to the limiting insert.

[0013] Preferably, the right side surface of the connecting sleeve has a through-hole that communicates with the side sliding groove, and the through-hole is adapted to the connecting sliding rod.

[0014] Preferably, a rectangular plug block is fixed to the inner wall of the bottom end of the shaft groove, and a rectangular plug interface for inserting the rectangular plug block is provided on the bottom surface of the drive shaft.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model improves and optimizes the existing steel-concrete composite beam bridge inspection core sampling machine by designing a quick disassembly and assembly structure between the core sampling cylinder and the drive shaft, which allows operators to quickly disassemble and replace the core sampling cylinder during actual use. This facilitates the rapid replacement of the corresponding core sampling cylinder according to the actual inspection needs during beam bridge inspection core sampling, thereby improving the efficiency of the inspection work. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present utility model;

[0017] Figure 2 This is a front view of the present invention;

[0018] Figure 3 This utility model Figure 1 A magnified view of a portion of region A in the middle;

[0019] Figure 4 This is a cross-sectional view of the connection between the drive shaft and the core barrel of this utility model;

[0020] Figure 5 This utility model Figure 4 A magnified view of a portion of region B in the middle;

[0021] In the diagram: 1. Movable base; 2. Column; 3. Lifting sleeve; 4. Lead screw; 5. Lifting platform; 6. Motor; 7. Drive shaft; 71. Rectangular insertion interface; 8. Connecting sleeve; 81. Shaft groove; 82. Rectangular insertion block; 9. Quick disassembly structure; 91. Side base plate; 92. Movable seat; 93. Limiting structure; 931. Inner groove; 932. Spring; 933. Right-angled trapezoidal telescopic block; 94. Limiting insertion block; 95. Side sliding groove; 96. Connecting sliding rod; 97. Limiting insertion hole; 10. Core extraction cylinder. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1

[0024] Please see Figures 1 to 5 This is the first embodiment of the present invention, which provides a technical solution: a core sampling machine for testing steel-concrete composite beam bridges, comprising...

[0025] The mobile base 1, the column 2 welded and fixed to the top of the mobile base 1, the lead screw 4 rotatably mounted on the inner side of the column 2 through the bearing and extending to the top of the column 2, the lifting sleeve 3 slidably sleeved on the surface of the column 2, the lifting platform 5 fixed on the side of the lifting sleeve 3, the motor 6 mounted on the top surface of the lifting platform 5, and the drive shaft 7 rotatably mounted on the bottom surface of the lifting platform 5, with the output end of the motor 6 extending to the bottom of the lifting platform 5 and connected to the drive shaft 7.

[0026] A connecting sleeve 8 is fitted onto the bottom surface of the drive shaft 7, and a core-retrieving cylinder 10 is welded and fixed to the bottom surface of the connecting sleeve 8. A shaft groove 81 for inserting the drive shaft 7 is provided on the top surface of the connecting sleeve 8. A quick-release structure 9 is provided between the drive shaft 7 and the connecting sleeve 8. The drive shaft 7 includes a side plate 91 movably mounted on the right side surface of the connecting sleeve 8. A limiting block 94 is welded and fixed to the inner side of the top of the side plate 91. A limiting hole 97 corresponding to the limiting block 94 is provided through the surface of the drive shaft 7. The end of the limiting block 94 extends into the limiting hole 97, allowing the drive shaft 7 and the connecting sleeve 8 to be stably connected together, ensuring the installation stability of the core-retrieving cylinder 10. If the core-retrieving cylinder 10 needs to be disassembled and replaced later, only the side plate 91 needs to be disassembled. Pulling the limiting plug 94 causes it to move out of the limiting plug hole 97, allowing the connecting sleeve 8 to be directly removed from the surface of the drive shaft 7, and the core sampling cylinder 10 to be quickly disassembled and replaced. In daily use, because the end of the limiting plug 94 is always inserted into the limiting plug hole 97, when the motor 6 drives the drive shaft 7 to rotate, the drive shaft 7 will also drive the core sampling cylinder 10 to rotate. In actual core sampling testing, the moving base 1 is first pushed to the testing area of ​​the steel-concrete composite beam bridge, and then the motor 6 is started, causing the drive shaft 7 to rotate at high speed with the connecting sleeve 8 and the core sampling cylinder 10. Then the lifting sleeve 3 slides down, causing the lifting platform 5 and the core sampling cylinder 10 to move down, so that the bottom end of the core sampling cylinder 10 contacts the bridge deck of the steel-concrete composite beam bridge, and the bridge deck of the steel-concrete composite beam bridge can be cored.

[0027] In this embodiment, preferably, the quick disassembly and assembly structure 9 further includes a side sliding groove 95 formed on the left side surface of the connecting sleeve 8, and a movable seat 92 is slidably disposed in the side sliding groove 95. A connecting slide rod 96 is welded and fixed on the right side surface of the movable seat 92, and the right end of the connecting slide rod 96 passes through to the right side surface of the connecting sleeve 8 and is fixed to the side base plate 91, so that the side base plate 91 can slide smoothly laterally, so that the limiting insert 94 can be inserted into or removed from the limiting insert hole 97, which facilitates the disassembly and assembly of the core-taking cylinder 10.

[0028] In this embodiment, preferably, the left end of the movable seat 92 extends to the left side surface of the connecting sleeve 8, and a limiting structure 93 is provided at the top of the left end of the movable seat 92.

[0029] In this embodiment, preferably, the limiting structure 93 includes an inner groove 931 formed inside the movable seat 92, a spring 932 installed in the inner groove 931, and a right-angled trapezoidal telescopic block 933. The right-angled trapezoidal telescopic block 933 is movably installed in the inner groove 931 by the spring 932, and the top of the right-angled trapezoidal telescopic block 933 pops out to the top of the movable seat 92 and is located on the left side of the connecting sleeve 8. After popping out, the right-angled trapezoidal telescopic block 933 can block and limit the movable seat 92, thereby preventing subsequent use. During the process, the movable seat 92 and the side plate 91 shift laterally, ensuring that the limiting plug 94 can be stably inserted into the limiting plug hole 97, thus ensuring the installation stability of the core tube 10. When the core tube 10 needs to be removed for replacement, the operator only needs to press the top of the right-angled trapezoidal telescopic block 933, so that the top of the right-angled trapezoidal telescopic block 933 is pressed into the inner groove 931, and the spring 932 is compressed. At this time, the right-angled trapezoidal telescopic block 933 no longer limits the movable seat 92, and the operator can push the movable seat 92 in. Within the side sliding groove 95, the side base plate 91 moves laterally along with the limiting insert 94 until the end of the limiting insert 94 moves out of the limiting insertion hole 97. At this point, the limiting insert 94 no longer limits the connecting sleeve 8, and the connecting sleeve 8 can be directly removed from the surface of the drive shaft 7, quickly completing the disassembly of the core-retrieving cylinder 10. When installing the core-retrieving cylinder 10, first place the connecting sleeve 8 on the surface of the drive shaft 7 so that the bottom end of the drive shaft 7 is inserted into the shaft groove 81, and then push the side base plate 91 towards the right side surface of the connecting sleeve 8 to limit the movement. The end of the insert block 94 is inserted into the limiting insertion hole 97 until the left end of the movable seat 92 extends to the left side surface of the connecting sleeve 8, and the top of the right-angled trapezoidal telescopic block 933 is pushed by the spring 932 to pop out to the top of the movable seat 92 and lock into the left side surface of the connecting sleeve 8. This quickly completes the connection between the core sampling cylinder 10 and the drive shaft 7, effectively improving the ease of disassembly and assembly of the core sampling cylinder 10, facilitating the quick disassembly and replacement of the core sampling cylinder 10 by subsequent operators, and meeting the different core sampling requirements of steel-concrete composite beam bridges.

[0030] In this embodiment, preferably, the bottom end of the spring 932 is fixed to the inner wall of the inner groove 931, and the top end of the spring 932 is fixed to the right-angled trapezoidal telescopic block 933.

[0031] In this embodiment, preferably, the right side surface of the connecting sleeve 8 is provided with a transverse through hole communicating with the shaft groove 81, and the transverse through hole is adapted to the limiting plug 94 to allow the limiting plug 94 to pass smoothly through.

[0032] In this embodiment, preferably, the right side surface of the connecting sleeve 8 is provided with a rod hole that communicates with the side sliding groove 95, and the rod hole is adapted to the connecting slide rod 96 to allow the connecting slide rod 96 to pass smoothly through.

[0033] Example 2

[0034] Please see Figures 1 to 5 This is the second embodiment of the present invention. This embodiment is based on the previous embodiment, except that a rectangular plug block 82 is welded and fixed to the inner wall of the bottom end of the shaft groove 81, and a rectangular plug interface 71 for the rectangular plug block 82 to be inserted is opened on the bottom end surface of the drive shaft 7. This allows the rectangular plug block 82 to be inserted into the rectangular plug interface 71 after the drive shaft 7 is inserted into the shaft groove 81, thereby further strengthening the connection between the drive shaft 7 and the connecting sleeve 8.

[0035] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A core sampling machine for inspecting steel-concrete composite beam bridges, characterized in that: include The mobile base (1), the column (2) fixed on the top of the mobile base (1), the screw (4) rotatably set inside the column (2) and extending to the top of the column (2), the lifting sleeve (3) slidably sleeved on the surface of the column (2), the lifting platform (5) fixed on the side of the lifting sleeve (3), the motor (6) installed on the top surface of the lifting platform (5), and the drive shaft (7) rotatably installed on the bottom surface of the lifting platform (5). The output end of the motor (6) extends to the bottom of the lifting platform (5) and is connected to the drive shaft (7). The bottom surface of the drive shaft (7) is fitted with a connecting sleeve (8), and a core-taking cylinder (10) is fixed on the bottom surface of the connecting sleeve (8). The top surface of the connecting sleeve (8) is provided with a shaft groove (81) for the drive shaft (7) to be inserted. A quick disassembly and assembly structure (9) is provided between the drive shaft (7) and the connecting sleeve (8). The drive shaft (7) includes a side plate (91) movably mounted on the right side surface of the connecting sleeve (8). A limiting plug (94) is fixed on the inner side of the top of the side plate (91). A limiting hole (97) corresponding to the limiting plug (94) is opened through the surface of the drive shaft (7). The end of the limiting plug (94) extends into the limiting hole (97).

2. The core sampling machine for testing steel-concrete composite beam bridges according to claim 1, characterized in that: The quick-release structure (9) also includes a side slide groove (95) opened on the left side surface of the connecting sleeve (8), and a movable seat (92) is slidably arranged in the side slide groove (95). A connecting slide rod (96) is fixed on the right side surface of the movable seat (92), and the right end of the connecting slide rod (96) extends through to the right side surface of the connecting sleeve (8) and is fixed to the side base plate (91).

3. The core sampling machine for testing steel-concrete composite beam bridges according to claim 2, characterized in that: The left end of the movable seat (92) extends to the left side surface of the connecting sleeve (8), and a limit structure (93) is provided at the top of the left end of the movable seat (92).

4. The core sampling machine for testing steel-concrete composite beam bridges according to claim 3, characterized in that: The limiting structure (93) includes an inner groove (931) opened inside the movable seat (92), a spring (932) installed in the inner groove (931), and a right-angled trapezoidal telescopic block (933). The right-angled trapezoidal telescopic block (933) is movably installed in the inner groove (931) by the spring (932), and the top of the right-angled trapezoidal telescopic block (933) pops out to the top of the movable seat (92) and is located on the left side of the connecting sleeve (8).

5. The core sampling machine for testing steel-concrete composite beam bridges according to claim 4, characterized in that: The bottom end of the spring (932) is fixed to the inner wall of the inner groove (931), and the top end of the spring (932) is fixed to the right-angled trapezoidal telescopic block (933).

6. The core sampling machine for testing steel-concrete composite beam bridges according to claim 4, characterized in that: The right side surface of the connecting sleeve (8) is provided with a transverse through hole that communicates with the shaft groove (81), and the transverse through hole is adapted to the limiting insert (94).

7. The core sampling machine for testing steel-concrete composite beam bridges according to claim 4, characterized in that: The right side surface of the connecting sleeve (8) is provided with a rod hole that communicates with the side slide groove (95), and the rod hole is adapted to the connecting slide rod (96).

8. The core sampling machine for testing steel-concrete composite beam bridges according to claim 1, characterized in that: A rectangular plug-in block (82) is fixed to the inner wall of the bottom end of the shaft groove (81), and a rectangular plug-in interface (71) for the rectangular plug-in block (82) to be inserted is opened on the bottom surface of the drive shaft (7).

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