Strength detection device for tunnel sprayed concrete

Abstract

The utility model discloses a strength detection device for tunnel sprayed concrete, which belongs to the technical field of concrete detection and comprises a bottom plate, a base is arranged above the bottom plate, a detection table component is mounted above the base, and support plates are mounted above the base and on two sides of the detection table component. Clamping assemblies are installed on the inner sides of the supporting plates, a hydraulic assembly is arranged above the detection table assembly, the hydraulic assembly is connected with the two supporting plates through a shifting lifting device, and two cleaning and collecting devices are installed at the positions, close to the upper portion, of the shifting lifting device; through the arrangement of the shifting lifting device, a worker can adjust the position of the hydraulic assembly and the height of structures such as the base to a certain degree through cooperation of structures such as the motor and the lifting frame when needed, so that the working requirements under different conditions are better met, and the working capacity of the device is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of concrete detection, and in particular relates to a strength detection device for tunnel shotcrete. Background Art

[0002] Concrete, referred to as "concrete", is a general term for engineering composite materials in which aggregates are bonded into a whole by cementitious materials.

[0003] Chinese patent application number 202222028410.X discloses a concrete strength testing device, including a hydraulic cylinder, a top platform, a hydraulic rod, a testing platform and a base, characterized in that the top platform is arranged directly above the base, and the four corner ends between the testing platform and the base are provided with pillars, threaded sleeves are provided between the pillars on both sides, and clamping parts are provided inside the threaded sleeves, and the clamping parts include a rotary disk, a threaded rod, a support rod and a clamping plate. When the concrete strength testing device provided by the utility model is used, the concrete block to be tested is placed on the testing platform, and then the hydraulic cylinder is started to push the hydraulic rod downward, and then the compressive stress test is performed on the top of the concrete block. During this period, the rotary disks on both sides are rotated so that the clamping plate at the front end is pressed against the side of the concrete block, making the test more stable and the test data more accurate.

[0004] 1. The above-mentioned disclosed patent has the problem of being inconvenient to adjust the position of structures such as the hydraulic rod and the height of structures such as the base, thereby reducing the working capacity of the device; 2. The above-mentioned disclosed patent has the problem of being inconvenient to handle dust and debris that may appear during detection when necessary, thereby reducing the practicality of the device. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides a strength detection device for tunnel shotcrete, which has the characteristics of high working capacity and strong practicality.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a strength detection device for tunnel shotcrete, comprising a bottom plate, a base provided above the bottom plate, a detection platform assembly installed above the base, support plates installed above the base and on both sides of the detection platform assembly, a clamping assembly installed on the inner side of the support plate, a hydraulic assembly provided above the detection platform assembly, the hydraulic assembly and the two support plates are connected by a shifting and lifting device, and two cleaning and collecting devices are installed at the upper position of the shifting and lifting device.

[0007] Preferably, the shifting and lifting device includes a bracket, a movable plate, a screw, a motor and a lifting assembly. The bracket is installed above the two support plates and outside the hydraulic assembly. The motor is installed on one side of the bracket. The screw is installed on the side of the motor close to the bracket. The movable plate is installed above the hydraulic assembly and outside the screw. The base plate and the bracket are connected through two lifting assemblies.

[0008] Preferably, the height of the inner top surface of the bracket is equal to the height of the outer top surface of the movable plate.

[0009] Preferably, the lifting assembly includes a fixing sleeve, a threaded hole, a screw and a lifting frame. The fixing sleeve is installed above the base plate and on both sides of the two clamping assemblies. The lifting frame is installed on both sides of the bracket and on the inner side of the fixing sleeve and below the motor. A plurality of threaded holes are opened on one side of the lifting frame near the edge, and a screw is installed on the top of the fixing sleeve through a thread.

[0010] Preferably, the cleaning and collecting device includes a fixed box, an input pipe, a filter cloth and a fan. The fixed box is installed above the lifting frame and below the motor. The input pipe is installed on the side of the fixed box close to the bracket, the filter cloth is installed on the inner side of the fixed box, and the fan is installed on the side of the fixed box away from the input pipe.

[0011] Preferably, the cleaning and collecting device further comprises a blocking block, and the blocking block is threadably mounted on the top of the fixing box.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The utility model provides a shifting and lifting device, so that the staff can adjust the position of the hydraulic assembly and the height of the base and other structures when necessary through the cooperation of the motor and the lifting frame and other structures, so as to better meet the working needs in different situations and thus improve the working capacity of the device.

[0014] 2. The utility model provides a cleaning and collecting device so that the staff can, when necessary, clean and collect the dust and debris that may appear during the inspection through the cooperation of structures such as the fan and the filter cloth, thereby reducing the possibility of the dust and debris causing adverse effects on the surrounding personnel and environment, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 It is a three-dimensional cutaway view of the utility model;

[0017] Figure 3 This is a three-dimensional cutaway view of the shifting and lifting device of the utility model;

[0018] Figure 4 It is a three-dimensional cutaway view of the cleaning and collecting device of the present invention.

[0019] In the figure: 1. Base plate; 2. Shifting and lifting device; 21. Bracket; 22. Moving plate; 23. Screw; 24. Motor; 25. Lifting assembly; 251. Fixing sleeve; 252. Threaded hole; 253. Screw; 254. Lifting frame; 3. Cleaning and collecting device; 31. Fixing box; 32. Blocking block; 33. Inlet pipe; 34. Filter cloth; 35. Fan; 4. Hydraulic assembly; 5. Clamping assembly; 6. Support plate; 7. Base; 8. Inspection table assembly. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Example 1

[0022] See also Figure 1-4 The utility model provides the following technical solutions: A strength detection device for tunnel shotcrete, comprising a base plate 1, a base 7 is provided above the base plate 1, a detection platform assembly 8 is installed above the base 7, support plates 6 are installed above the base 7 and on both sides of the detection platform assembly 8, a clamping assembly 5 is installed on the inner side of the support plate 6, a hydraulic assembly 4 is provided above the detection platform assembly 8, the hydraulic assembly 4 and the two support plates 6 are connected by a shift lifting device 2, and two cleaning and collecting devices 3 are installed at the upper position of the shift lifting device 2.

[0023] Specifically, the shifting and lifting device 2 includes a bracket 21, a movable plate 22, a screw rod 23, a motor 24 and a lifting assembly 25. The bracket 21 is installed above the two support plates 6 and at a position outside the hydraulic assembly 4. The motor 24 is installed on one side of the bracket 21. The screw rod 23 is installed on the side of the motor 24 close to the bracket 21. The movable plate 22 is installed above the hydraulic assembly 4 and at a position outside the screw rod 23. The base plate 1 and the bracket 21 are connected by two lifting assemblies 25.

[0024] By adopting the above technical solution, the staff can adjust the position of the hydraulic assembly 4 to a certain extent through the cooperation of the motor 24 and the movable plate 22 and other structures when necessary, so as to better meet the working needs in different situations.

[0025] Specifically, the height of the inner top surface of the bracket 21 is equal to the height of the outer top surface of the movable plate 22 .

[0026] By adopting the above technical solution, the device can ensure that the inner top surface of the bracket 21 and the outer top surface of the movable plate 22 are in close contact with each other, thereby preventing the movable plate 22 from rotating and deviating during movement, and ensuring normal operation.

[0027] Specifically, the lifting assembly 25 includes a fixing sleeve 251, a threaded hole 252, a screw 253 and a lifting frame 254. The fixing sleeve 251 is installed above the base plate 1 and on both sides of the two clamping assemblies 5. The lifting frame 254 is installed on both sides of the bracket 21 and on the inner side of the fixing sleeve 251 and below the motor 24. A plurality of threaded holes 252 are opened on one side of the lifting frame 254 near the edge, and a screw 253 is installed on the top of the fixing sleeve 251 through a thread.

[0028] By adopting the above technical solution, the staff can adjust the height of the base 7 and other structures by cooperating with the motor 24 and the lifting frame 254 when necessary, so as to better meet the work needs in different situations.

[0029] When this embodiment is used, when the device needs to be used to test the strength of tunnel shotcrete, the staff will screw the screws 253 on the fixing sleeves 251 of the two lifting assemblies 25 in the shifting lifting device 2 to disengage them from the threaded holes 252 on the two lifting frames 254, and then pull the base 7 and other structures to move them together with the testing platform assembly 8 and the lifting frames 254 and other structures to the required height, and then rotate the two screws 253 in the opposite direction to connect them with the corresponding threaded holes 252, and then place the solidified concrete block of tunnel shotcrete on the testing platform assembly 8, operate the clamping assemblies 5 on the two support plates 6 to fix the concrete block, start the motor 24 on the bracket 21, and the motor 24 drives the screw rod 23 to rotate. The screw rod 23 is threadedly connected to the movable plate 22, and the outer top surface of the movable plate 22 is tightly attached to the inner side of the bracket 21, so that the screw rod 23 drives the movable plate 22 to move, thereby adjusting the position of the hydraulic assembly 4, and then starting the hydraulic assembly 4 to press the concrete block, and then performing the strength test. The bottom plate 1 plays a supporting role.

[0030] Example 2

[0031] The difference between this embodiment and embodiment 1 is that the cleaning and collecting device 3 includes a fixed box 31, an input pipe 33, a filter cloth 34 and a fan 35. The fixed box 31 is installed above the lifting frame 254 and below the motor 24. The input pipe 33 is installed on the side of the fixed box 31 close to the bracket 21, the filter cloth 34 is installed on the inner side of the fixed box 31, and the fan 35 is installed on the side of the fixed box 31 away from the input pipe 33.

[0032] By adopting the above technical solution, the staff can, when necessary, use the cooperation of the fan 35 and the filter cloth 34 to clean and collect the dust and debris that may appear during the inspection, thereby reducing the possibility of the dust and debris causing adverse effects on the surrounding personnel and environment.

[0033] Specifically, the cleaning and collecting device 3 further includes a blocking block 32 , and the blocking block 32 is installed on the top of the fixing box 31 through threads.

[0034] By adopting the above technical solution, the staff can unscrew the blocking block 32 and take out the debris, dust and other objects in the fixed box 31 when needed, thereby reducing the difficulty of taking out the debris, dust and other objects and better meeting the needs of the staff.

[0035] When this embodiment is in use, during the working process, the staff can start the two fans 35 in the cleaning and collecting devices 3. Under the action of the two fans 35, the debris, dust and other objects generated during the detection work are sucked into the two input pipes 33, and then enter the two fixed boxes 31. The filter cloth 34 blocks the debris, dust and other objects, thereby cleaning and collecting the debris and dust. When the detection work is completed, the two fans 35 are turned off, and the cleaning and collection is completed. The staff can unscrew the blocking block 32 when needed to take out the debris, dust and other objects in the fixed box 31.

[0036] The structures and principles of the hydraulic assembly 4 composed of a hydraulic cylinder and a hydraulic rod, the clamping assembly 5 composed of a threaded sleeve, a rotary disc, a threaded rod, a jack, a piston plate, a spring, a support rod and a clamping plate, the base 7, and the detection table assembly 8 composed of a detection table and a compressive stress sensor in the utility model have been disclosed in a concrete strength detection device disclosed in Chinese patent application No. 202222028410.X. Its working principle is that when in use, the concrete block to be tested is placed on the detection table, and then the hydraulic cylinder is started to push the hydraulic rod downward, and then push it against the top of the concrete block to perform a compressive stress test. During this period, the rotary discs on both sides are rotated so that the clamping plate at the front end pushes against the side of the concrete block. The test is more stable and the test data is more accurate.

[0037] The working principle and use process of the present invention are as follows: when the device is needed to perform strength testing on concrete shotcrete for tunnel spraying, the staff will screw the screws 253 on the fixing sleeves 251 in the two lifting components 25 in the shift lifting device 2 to disengage the screws 252 on the two lifting frames 254, and then pull the base 7 and other structures to move them together with the testing platform component 8 and the lifting frame 254 and other structures to the required height, and then rotate the two screws 253 in the opposite direction to connect them with the corresponding threaded holes 252, and then place the solidified concrete block of concrete shotcrete for tunnel spraying on the testing platform component 8, operate the clamping components 5 on the two support plates 6 to fix the concrete block, start the motor 24 on the bracket 21, the motor 24 drives the screw rod 23 to rotate, the screw rod 23 is threadedly connected to the moving plate 22, and the shifting mechanism 21 is moved to the desired height. The outer top surface of the movable plate 22 and the inner side of the bracket 21 are in close contact with each other, so the screw rod 23 drives the movable plate 22 to move, thereby adjusting the position of the hydraulic assembly 4, and then starting the hydraulic assembly 4 to press the concrete block, and then performing strength testing. The bottom plate 1 plays a supporting role; during the working process, the staff can start the two fans 35 in the cleaning and collection devices 3. Under the action of the two fans 35, the debris, dust and other objects that appear during the detection work are sucked into the two input pipes 33, and then enter the two fixed boxes 31. The filter cloth 34 blocks the debris, dust and other objects, thereby cleaning and collecting the debris. When the detection work is completed, the two fans 35 are turned off, and the cleaning and collection are completed. The staff can unscrew the blocking block 32 when needed to take out the debris, dust and other objects in the fixed box 31.

[0038] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A strength detection device for tunnel shotcrete, comprising a base plate (1), a base (7) provided above the base plate (1), a detection platform assembly (8) installed above the base (7), support plates (6) installed above the base (7) and at positions on both sides of the detection platform assembly (8), a clamping assembly (5) installed inside the support plates (6), and a hydraulic assembly (4) provided above the detection platform assembly (8), characterized in that: The hydraulic assembly (4) and the two support plates (6) are connected via a shifting and lifting device (2), and two cleaning and collecting devices (3) are installed at the upper position of the shifting and lifting device (2).

2. A strength detection device for tunnel shotcrete according to claim 1, characterized in that: The shifting and lifting device (2) comprises a bracket (21), a movable plate (22), a screw rod (23), a motor (24) and a lifting assembly (25); the bracket (21) is installed above the two support plates (6) and at a position outside the hydraulic assembly (4); the motor (24) is installed on one side of the bracket (21); the screw rod (23) is installed on the side of the motor (24) close to the bracket (21); the movable plate (22) is installed above the hydraulic assembly (4) and at a position outside the screw rod (23); and the bottom plate (1) and the bracket (21) are connected via the two lifting assemblies (25).

3. A strength detection device for tunnel shotcrete according to claim 2, characterized in that: The height of the inner top surface of the bracket (21) is equal to the height of the outer top surface of the movable plate (22).

4. A strength detection device for tunnel shotcrete according to claim 2, characterized in that: The lifting assembly (25) comprises a fixing sleeve (251), a threaded hole (252), a screw (253) and a lifting frame (254). The fixing sleeve (251) is installed above the bottom plate (1) and at both sides of the two clamping assemblies (5). The lifting frame (254) is installed on both sides of the bracket (21) and at the inner side of the fixing sleeve (251) and below the motor (24). A plurality of threaded holes (252) are opened on one side of the lifting frame (254) near the edge. The screw (253) is installed on the top of the fixing sleeve (251) through a thread.

5. The strength detection device for tunnel shotcrete according to claim 4, characterized in that: The cleaning and collecting device (3) comprises a fixed box (31), an input pipe (33), a filter cloth (34) and a fan (35); the fixed box (31) is installed above the lifting frame (254) and below the motor (24); the input pipe (33) is installed on a side of the fixed box (31) close to the bracket (21); the filter cloth (34) is installed on the inner side of the fixed box (31); and the fan (35) is installed on a side of the fixed box (31) away from the input pipe (33).

6. A strength detection device for tunnel shotcrete according to claim 5, characterized in that: The cleaning and collecting device (3) further comprises a blocking block (32), and the blocking block (32) is mounted on the top of the fixing box (31) via a thread.

Images