A rebound hammer for highway detection

Abstract

The utility model relates to a rebound tester technical field, especially a rebound tester for highway detection, including fixed plate, the center place fixed connection of fixed plate has the rebound tester, all slidingly connected with support column in fixed plate four corners. The utility model has the advantages that: through the support of support column and the extension of push handle bar, the operator can right the rebound tester in standing posture, so as to operate in standing posture, then through the pedal of foot, the fixed plate can be pressed down, then the rebound tester is pressed down the road surface, along with completely press down the bottom, the rebound tester releases hammering, completes the detection, the detection mode only needs standing posture to step on, does not need to crouch and bend, and the operation is labor saving, after detection, directly pull up and move, improve the detection efficiency, through the support of four support columns and support spring, the rebound tester can be stably supported, prevent skew when pushing, improve stability, at the same time, the stability when pushing detection can be improved through the support of antiskid pad ground to prevent sliding.

Description

Technical Field

[0001] This utility model relates to the field of rebound hammer technology, and in particular to a rebound hammer for highway testing. Background Technology

[0002] In the construction and maintenance of highways, strength testing of concrete pavements and structures is a crucial step in ensuring highway quality and safety. The rebound hammer, a commonly used non-destructive testing device, reflects the strength of concrete by striking its surface and using the rebound value. Due to its ease of operation and high testing efficiency, it is widely used in highway engineering quality testing.

[0003] However, existing road rebound hammers still have many problems in actual use. For example, most rebound hammers are short in structure, which requires the user to squat on the road surface, hold the hammer with their hands, and bend over to push and squeeze when testing the road surface. This is quite strenuous. Moreover, the user needs to move along the road surface constantly during testing, which requires frequent squatting and is time-consuming and laborious. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a rebound hammer for highway testing, which effectively solves the deficiencies of the prior art.

[0005] The objective of this utility model is achieved through the following technical solution: a rebound hammer for highway testing, comprising a fixed plate, a rebound hammer fixedly connected to the center of the fixed plate, support columns slidably connected to the four corners of the fixed plate, each of the four support columns penetrating the fixed plate, anti-slip pads fixedly connected to the bottom ends of each of the four support columns, stoppers fixedly connected to the top ends of each of the four support columns, spring baffles fixedly connected to the bottom of each of the four support columns, a support spring provided between the spring baffle and the bottom surface of the fixed plate, the support spring being sleeved on the outside of the support column, the diameter of the support spring being smaller than the diameter of the spring baffle, a push handle rod fixedly connected to the center of the top surface of the fixed plate, the height of the push handle rod being greater than the height of the top of the rebound hammer, and pedals fixedly connected to both sides of the fixed plate.

[0006] Preferably, in any of the above embodiments, the rebound hammer is an electronic rebound hammer, a connecting shaft is fixedly connected to the top of the inner wall of the handle, a digital display screen is rotatably connected to the outer wall of the connecting shaft, the data output end of the rebound hammer is connected to the data input end of the digital display screen through a wire, and the digital display screen is interference-fitted with the connecting shaft.

[0007] The technical effect achieved by adopting the above solution is that the detected data is transmitted to the digital display screen so that it can be read directly from above without bending over to view it. Moreover, the interference fit makes it easy to rotate the digital display screen to adjust the display angle.

[0008] Preferably, in any of the above schemes, the length of each of the four support columns is greater than the length of the bottom end of the rebound hammer extending out of the bottom surface of the fixing plate, and the four support columns are arranged symmetrically with respect to the rebound hammer as the center.

[0009] The technical effect achieved by adopting the above solution is that the support column can support and push the rebound hammer, thus protecting it when it is not being tested.

[0010] Preferably, in any of the above solutions, the length of the support spring after reset is adapted to the length of the support column, the diameter of the stop head is larger than the diameter of the support column, and the position of the stop head is on the top surface of the fixed plate.

[0011] The technical effect achieved by adopting the above solution is that the support spring can push the fixed plate to the top of the support column.

[0012] Preferably, in any of the above solutions, the rebound device is located at the center of the inner side of the push handle lever, and the width of the digital display screen is smaller than the left-right distance of the inner wall of the push handle lever.

[0013] The technical effect achieved by adopting the above solution is that the digital display screen can be rotated and retracted to the inside of the push handle, thus achieving protection.

[0014] This utility model has the following advantages:

[0015] 1. This road inspection rebound hammer, supported by a support column and extended by pushing the handle, allows the operator to stand upright and operate it from a standing position. Then, by stepping on the pedal, the fixing plate is pressed down, causing the rebound hammer to fall onto the road surface. Once fully pressed down, the hammer releases its strike, completing the inspection. This inspection method only requires standing and stepping, eliminating the need to squat or bend over, thus saving effort. After inspection, it can be simply pulled up and moved, improving inspection efficiency.

[0016] 2. The rebound hammer for highway testing, supported by the four support columns and support springs, can stably support the rebound hammer, prevent it from tilting during pushing, and improve stability. At the same time, the anti-slip pads supporting the ground can prevent slippage and improve stability during pushing and testing. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a side view of the structure of this utility model.

[0019] In the diagram: 1-Fixed plate, 2-Rebound spring, 3-Support column, 4-Spring baffle, 5-Support spring, 6-Anti-slip pad, 7-Stop, 8-Pedal, 9-Push handle lever, 10-Connecting shaft, 11-Digital display screen. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.

[0021] like Figures 1 to 2 As shown, a rebound hammer for highway testing includes a fixed plate 1, a rebound hammer 2 fixedly connected to the center of the fixed plate 1, support columns 3 slidably connected to the four corners of the fixed plate 1, each of the four support columns 3 penetrating the fixed plate 1, anti-slip pads 6 fixedly connected to the bottom of each of the four support columns 3, stop heads 7 fixedly connected to the top of each of the four support columns 3, spring baffles 4 fixedly connected to the bottom of each of the four support columns 3, a support spring 5 provided between the spring baffle 4 and the bottom surface of the fixed plate 1, the support spring 5 being sleeved on the outside of the support columns 3, the diameter of the support spring 5 being smaller than the diameter of the spring baffle 4, a push handle 9 fixedly connected to the middle of the top surface of the fixed plate 1, the height of the push handle 9 being greater than the height of the top of the rebound hammer 2, and pedals 8 fixedly connected to both sides of the fixed plate 1.

[0022] As an optional technical solution of this utility model: the rebounder 2 is an electronic rebounder. A connecting shaft 10 is fixedly connected to the top of the inner wall of the handle 9. A digital display screen 11 is rotatably connected to the outer wall of the connecting shaft 10. The data output end of the rebounder 2 is connected to the data input end of the digital display screen 11 through a wire. The digital display screen 11 and the connecting shaft 10 are interference-fitted. The data after detection is transmitted to the digital display screen 11 so that the reading can be taken directly at a height without bending over to check. Moreover, the interference fit makes it easy to rotate the digital display screen 11 to adjust the display angle.

[0023] As an optional technical solution of this utility model: the length of each of the four support columns 3 is greater than the length of the bottom end of the rebounder 2 extending out of the bottom surface of the fixing plate 1. The four support columns 3 are symmetrically arranged with the rebounder 2 as the center, so that the support columns 3 can support and push the rebounder 2, so that it is protected when not being tested.

[0024] As an optional technical solution of this utility model: the length of the support spring 5 after reset is adapted to the length of the support column 3, the diameter of the stop head 7 is larger than the diameter of the support column 3, and the position of the stop head 7 is on the top surface of the fixing plate 1, so that the support spring 5 can push the fixing plate 1 to the top of the support column 3.

[0025] As an optional technical solution of this utility model: the rebound device 2 is located at the center of the inner side of the push handle 9, and the width of the digital display screen 11 is smaller than the left and right distance of the inner wall of the push handle 9, so that the digital display screen 11 can rotate and retract to the inner side of the push handle 9, thus obtaining protection.

[0026] The working process of this utility model is as follows: When the user uses it...

[0027] 1) By supporting the support column 3 and pushing the extension of the handle 9, the operator can stand upright to straighten the rebounder 2;

[0028] 2) The rebound device 2 can be stably supported by four support columns 3 and support springs 5, preventing it from tilting during pushing and improving stability;

[0029] 3) At the same time, the anti-slip pad 6 supports the ground to prevent slippage and improve the stability during the push test;

[0030] 4) Then, by stepping on the pedal 8, the fixed plate 1 can be pressed down, which in turn causes the rebounder 2 to be pressed down onto the road surface. As it is completely pressed down, the hammer of the rebounder 2 releases its hammer and completes the test.

[0031] 5) The data after detection is transmitted to the digital display screen 11 so that it can be read directly without having to bend over to view it.

[0032] In summary, this utility model, through the support of the support columns 3 and the extension of the push handle 9, allows the operator to stand upright to straighten the rebound spring 2 for standing operation. Then, by stepping on the pedal 8, the fixing plate 1 is pressed down, causing the rebound spring 2 to fall onto the ground. As it is completely pressed down, the hammer of the rebound spring 2 releases its hammer, completing the test. This testing method only requires standing foot operation, without the need to squat or bend over, saving effort. After the test, it can be directly pulled up and moved, improving testing efficiency. The four support columns 3 and the support spring 5 provide stable support for the rebound spring 2, preventing tilting during pushing and improving stability. At the same time, the anti-slip pad 6 supports the ground to prevent slippage, improving stability during pushing and testing.

[0033] Although 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 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 rebound hammer for highway testing, characterized in that: The device includes a fixed plate (1), a rebound device (2) is fixedly connected to the center of the fixed plate (1), support columns (3) are slidably connected to the four corners of the fixed plate (1), the four support columns (3) penetrate the fixed plate (1), anti-slip pads (6) are fixedly connected to the bottom of the four support columns (3), stop heads (7) are fixedly connected to the top of the four support columns (3), spring baffles (4) are fixedly connected to the bottom of the four support columns (3), a support spring (5) is provided between the spring baffle (4) and the bottom surface of the fixed plate (1), the support spring (5) is sleeved on the outside of the support column (3), the diameter of the support spring (5) is smaller than the diameter of the spring baffle (4), a push handle rod (9) is fixedly connected to the middle of the top surface of the fixed plate (1), the height of the push handle rod (9) is greater than the height of the top of the rebound device (2), and pedals (8) are fixedly connected to both sides of the fixed plate (1).

2. The rebound hammer for highway testing according to claim 1, characterized in that: The rebounder (2) is an electronic rebounder. A connecting shaft (10) is fixedly connected to the top of the inner wall of the handle (9). A digital display screen (11) is rotatably connected to the outer wall of the connecting shaft (10). The data output end of the rebounder (2) is connected to the data input end of the digital display screen (11) through a wire. The digital display screen (11) and the connecting shaft (10) are interference fit.

3. A rebound hammer for highway testing according to claim 1, characterized in that: The length of each of the four support columns (3) is greater than the length of the bottom end of the rebounder (2) extending out of the bottom surface of the fixing plate (1). The four support columns (3) are arranged symmetrically with the rebounder (2) as the center.

4. A rebound hammer for highway testing according to claim 1, characterized in that: The length of the support spring (5) after reset is adapted to the length of the support column (3), the diameter of the stop (7) is greater than the diameter of the support column (3), and the position of the stop (7) is on the top surface of the fixing plate (1).

5. A rebound hammer for highway testing according to claim 2, characterized in that: The rebound device (2) is located at the center of the inner side of the push handle (9), and the width of the digital display screen (11) is less than the left and right distance of the inner wall of the push handle (9).

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