Resiliometer for engineering supervision

Abstract

The utility model discloses a rebound apparatus for engineering supervision, which belongs to the technical field of rebound apparatuses and comprises a main body, the upper end of the main body is cylindrical, the lower end of the main body is conical, and a button and a scale display screen are arranged on the outer surface of the upper end of the cylindrical main body; the upper end of the cylindrical main body is in threaded connection with a rear cover, and the outer surface of the lower end of the cylindrical main body is in sliding connection with a sliding block; a fixing frame is fixedly connected to one side of the cylindrical body, a safety rope is fixedly connected to the upper end of the fixing frame, an elastic rod is slidably connected to the middle of the lower end of the conical body, and a front cover is in threaded connection with the portion, located on the outer side of the connecting position of the elastic rod, of the lower end of the conical body. According to the technical scheme, an operator can more conveniently hold the rebound apparatus, and through the length and position of the sliding block, the operator can move the sliding block to the lowermost end during measurement and then fix the sliding block through the fixing handle, so that a bouncing rod of the rebound apparatus is always perpendicular to a detected wall surface.

Description

Technical Field

[0001] The utility model belongs to the technical field of rebound hammers, and in particular relates to a rebound hammer for engineering supervision. Background Art

[0002] The basic principle of the rebound hammer is to use a spring to drive a heavy hammer. The heavy hammer hits the impact rod in vertical contact with the concrete surface with constant kinetic energy, causing the local concrete to deform and absorb part of the energy, and the other part of the energy is converted into the rebound kinetic energy of the heavy hammer. When the rebound kinetic energy is completely converted into potential energy, the heavy hammer rebounds to the maximum distance. The instrument displays the maximum rebound distance of the heavy hammer in the name of the rebound value (the ratio of the maximum rebound distance to the initial length of the spring).

[0003] In the prior art, there is a rebound tester for engineering supervision with patent announcement number CN217717373U. The push plate of the above patent slides in the inner wall of the second movable groove, thereby realizing the detection of concrete walls of a certain height or a certain depth. The rubber fasteners and the push plate have a buffering effect on the periphery of the rebound tester and the top of the pressure part. However, there are still the following deficiencies in actual use: From a practical point of view, when the device is used at a high place, the surface of the rebound tester is too smooth and it may slip out of the hand accidentally, thus creating a safety hazard. In addition, the angle between the front end of the impact rod and the detection wall cannot be ensured, and the accuracy of the detection needs to be improved.

[0004] Therefore, a rebound hammer for engineering supervision is needed to solve the problems in the prior art that when the device is used at height, the surface of the rebound hammer is too smooth and may accidentally slip out of the hand, thus creating a safety hazard, and the angle between the front end of the rebound rod and the test wall cannot be ensured, and the accuracy of the detection needs to be improved. Utility Model Content

[0005] The utility model aims to provide a rebound test hammer for engineering supervision to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rebound tester for engineering supervision, comprising a main body, the upper end of the main body is cylindrical, the lower end is conical, and the outer surface of the upper end of the cylindrical main body is provided with a button and a scale display screen; the upper end of the cylindrical main body is threadedly connected to a rear cover, and the outer surface of the lower end of the cylindrical main body is slidably connected to a slider; a fixing frame is fixedly connected to one side of the cylindrical main body, the upper end of the fixing frame is fixedly connected to a safety rope, a rebound rod is slidably connected to the middle part of the lower end of the conical main body, and the lower end of the conical main body is threadedly connected to a front cover on the outside of the connection with the rebound rod.

[0007] It should be noted in the solution that a groove 1 is provided at the top end of the cylindrical main body and the lower end of the conical main body, and a rubber pad is fixedly connected inside the groove 1.

[0008] It is further worth mentioning that a buffer spring is fixedly connected to the lower end of the rear cover, and a protrusion guide is fixedly connected to the lower edge of the rear cover, and the protrusion guide is fitted and slidably connected to the groove one.

[0009] It should be further explained that the inner surface of the slider is slidably connected to the outer surface of the lower end of the cylindrical body, and a groove 2 is provided on one side of the slider, a groove 3 is provided on the upper end of the groove 2, and a threaded hole 1 is provided on one side of the groove 3.

[0010] As a preferred embodiment, a connecting hole is provided at the upper end of the fixing frame, a safety rope is fixedly connected to the connecting hole, and two symmetrical threaded holes are provided at the lower end of the fixing frame, both of which can be threadedly connected to a fixed handle, and the fixed handle can be threadedly connected to threaded hole two and threaded hole one.

[0011] As a preferred embodiment, the outer surface of the upper end of the cylindrical main body is provided with anti-slip grooves.

[0012] As a preferred embodiment, the height of the groove 2 is H1, and the height of the lower end of the fixing frame is H2, and the remaining length of the impact rod after recovery is H3, and the length of the conical main body is H4, then H1=H2+H3+H4.

[0013] Compared with the prior art, the rebound hammer for engineering supervision provided by the utility model has at least the following beneficial effects:

[0014] (1) The cooperation between the fixing frame and the anti-slip grooves can make it easier for the operator to hold the rebound hammer. At the same time, by putting the operator's arm around the other end of the safety rope, the rebound hammer can be prevented from accidentally falling out of the operator's hand when measuring at a high place, causing safety hazards or damage to the rebound hammer, thereby increasing the safety performance of the rebound hammer used for engineering supervision.

[0015] (2) By the length and position of the slider, the operator can move the slider to the bottom and fix it with the fixed handle during measurement, so that the impact rod of the rebound hammer is always perpendicular to the detection wall surface, thereby making the detection of the rebound hammer for engineering supervision more accurate and providing a certain degree of protection for the front end of the rebound hammer for engineering supervision. When the slider is moved to the top and fixed with the fixed handle, the rebound hammer can be used at a convenient wall measurement location. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the front structure of the utility model. Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the front structure of the utility model. Figure 1A schematic diagram of the enlarged structure at point A;

[0018] Figure 3 This is a schematic diagram of the front structure of the utility model. Figure 2 ;

[0019] Figure 4 This is a schematic diagram of the front structure of the utility model. Figure 3 ;

[0020] Figure 5 This is a schematic diagram of the slider structure of the utility model.

[0021] In the figure: 1. Main body; 101. Groove 1; 102. Rubber pad; 103. Scale display screen; 104. Button; 2. Slider; 201. Groove 2; 202. Groove 3; 203. Threaded hole 1; 3. Fixing bracket; 301. Connecting hole; 302. Threaded hole 2; 303. Fixed handle; 4. Back cover; 401. Buffer spring; 402. Raised guide; 5. Strike rod; 6. Safety rope; 7. Anti-slip pattern; 8. Front cover. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with the embodiments.

[0023] See also Figure 1-5 The utility model provides a rebound tester for engineering supervision, comprising: a main body 1, the upper end of the main body 1 is cylindrical, the lower end is conical, and the outer surface of the upper end of the cylindrical main body 1 is provided with a button 104 and a scale display screen 103; the upper end of the cylindrical main body 1 is threadedly connected with a rear cover 4, and the outer surface of the lower end of the cylindrical main body 1 is slidably connected with a slider 2; a fixing frame 3 is fixedly connected to one side of the cylindrical main body 1, and a safety rope 6 is fixedly connected to the upper end of the fixing frame 3, a spring rod 5 is slidably connected to the middle part of the lower end of the conical main body 1, and the lower end of the conical main body 1 is threadedly connected with a front cover 8 on the outer side of the connection with the spring rod 5.

[0024] Further as Figure 5 As shown, it is worth explaining in detail that a groove 101 is provided at the top of the cylindrical body 1 and the lower end of the conical body 1, and a rubber pad 102 is fixedly connected inside the groove 101. The rubber pad 102 can not only enhance the airtightness of the rebound tester for engineering supervision, but also make the front cover 8 and the rear cover 4 have a certain cushioning property.

[0025] Further as Figure 5As shown, it is worth explaining in detail that a buffer spring 401 is fixedly connected to the lower end of the rear cover 4, and a protrusion guide 402 is fixedly connected to the lower edge of the rear cover 4, and the protrusion guide 402 is fitted and slidably connected to the groove 101. The protrusion guide 402 is fitted and slidably connected to the groove 101, thereby increasing the airtightness of the rebound tester for engineering supervision, and through the buffer spring 401, the buffering property inside the rebound tester can be increased.

[0026] Further Figure 5 As shown, it is worth specifically explaining that the inner surface of the slider 2 is slidably connected to the outer surface of the lower end of the cylindrical main body 1, and a groove 201 is provided on one side of the slider 2, a groove 3 202 is provided on the upper end of the groove 201, and a threaded hole 203 is provided on one side of the groove 302. Through the length and position of the slider 2, the operator can move the slider 2 to the lower end during measurement, and then fix the slider 2 with the fixed handle 303, so that the impact rod 5 of the rebound tester is always perpendicular to the detection wall, thereby making the detection of the rebound tester for engineering supervision more accurate, and the front end of the rebound tester for engineering supervision can be protected to a certain extent. When the slider 2 is moved to the upper end and the slider 5 is fixed with the fixed handle 303, the rebound tester can be used at a convenient wall measurement location.

[0027] This solution has the following working process: when the rebound tester needs to be used, first put the other end of the safety rope 6 on the arm, then control the position of the slider 2 as needed, when necessary, move the slider 2 to the lower end, and then fix the slider 2 through the threaded hole 1 203 and the threaded hole 2 302, and then hold the end of the rebound tester with the anti-slip groove 7 to detect the corresponding position.

[0028] According to the above working process, it can be known that: through the rubber pad 102, not only the airtightness of the rebound test hammer for engineering supervision can be enhanced, but also the front cover 8 and the rear cover 4 can have a certain buffering property. The raised guide 402 is fitted and slidably connected to the groove 101, thereby increasing the airtightness of the rebound test hammer for engineering supervision, and through the buffer spring 401, the buffering property inside the rebound test hammer can be increased. Through the length and position of the slider 2, the operator can move the slider 2 to the lowest end during measurement, and then fix the slider 2 with the fixed handle 303, so that the impact rod 5 of the rebound test hammer is always perpendicular to the detection wall, thereby making the detection of the rebound test hammer for engineering supervision more accurate, and the front end of the rebound test hammer for engineering supervision can be protected to a certain extent. When the slider 2 is moved to the highest end and the slider 5 is fixed with the fixed handle 303, the rebound test hammer can be used at a convenient wall measurement location.

[0029] Further Figure 5As shown, it is worth specifically explaining that a connecting hole 301 is provided at the upper end of the fixing frame 3, and a safety rope 6 is fixedly connected to the connecting hole 301. A symmetrical threaded hole 2 302 is provided at the lower end of the fixing frame 3, and the symmetrical threaded hole 2 302 can be threadedly connected to a fixed handle 303. The fixed handle 303 can be threadedly connected to the threaded hole 2 302 and the threaded hole 1 203. Through the cooperation between the fixing frame 3 and the safety rope 6, the operator can hold the rebound tester more conveniently, and at the same time, by the operator's arm around the other end of the safety rope 6, the operator can prevent the rebound tester from accidentally slipping out of his hand when measuring at a high place, causing a safety hazard or causing damage to the rebound tester, thereby increasing the safety performance of the rebound tester used for engineering supervision.

[0030] Further as Figure 5 As shown, it is worth explaining in detail that the outer surface of the upper end of the cylindrical main body 1 is provided with anti-skid grooves 7, and the anti-skid grooves 7 can increase the contact friction between the palm and the rebound test hammer, thereby facilitating the stability and safety of the rebound test hammer for engineering supervision.

[0031] Further as Figure 5 As shown, it is worth specifically explaining that the height of the groove 201 is H1, and the height of the lower end of the fixing frame 3 is H2, and the remaining length of the impact rod 5 after recovery is H3, and the length of the conical body 1 is H4, then H1=H2+H3+H4. By using H1=H2+H3+H4, when the slider is lowered to the lowest end, it will not affect the use of the impact rod 5 of the rebound tester, but can ensure that the impact rod 5 of the rebound tester is exactly perpendicular to the measured wall, thereby making the detection of the rebound tester used for engineering supervision more accurate.

[0032] In summary, when the rebound hammer is used, the other end of the safety rope 6 is first put on the arm, and then the position of the slider 2 is controlled according to the needs. When necessary, the slider 2 is moved to the lower end, and then the slider 2 is fixed through the threaded hole 203 and the threaded hole 302, and then the end of the rebound hammer with the anti-slip groove 7 is held to detect the corresponding position. The cooperation between the fixing frame 3 and the safety rope 6 can make it more convenient for the operator to hold the rebound hammer, and at the same time, the other end of the safety rope 6 is put on the operator's arm to prevent the operator from being in a high place. During measurement, the rebound hammer may accidentally slip out of the hand, causing safety hazards or causing damage to the rebound hammer, thereby increasing the safety performance of the rebound hammer for engineering supervision. The anti-slip groove 7 can increase the contact friction between the palm and the rebound hammer, thereby facilitating the stability and safety of the rebound hammer for engineering supervision. Through H1=H2+H3+H4, when the slider drops to the lowest end, it will not affect the use of the rebound hammer's impact rod 5, but can ensure that the rebound hammer's impact rod 5 is exactly perpendicular to the measured wall, thereby making the detection of the rebound hammer for engineering supervision more accurate.

[0033] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A rebound hammer for engineering supervision, comprising a main body (1), characterized in that: The upper end of the main body (1) is cylindrical, and the lower end is conical, and a button (104) and a scale display screen (103) are provided on the outer surface of the upper end of the cylindrical main body (1); a rear cover (4) is threadedly connected to the upper end of the cylindrical main body (1), and a slider (2) is slidably connected to the outer surface of the lower end of the cylindrical main body (1); a fixing frame (3) is fixedly connected to one side of the cylindrical main body (1), and a safety rope (6) is fixedly connected to the upper end of the fixing frame (3), a spring rod (5) is slidably connected to the middle part of the lower end of the conical main body (1), and a front cover (8) is threadedly connected to the outer side of the lower end of the conical main body (1) located at the connection with the spring rod (5).

2. The rebound hammer for engineering supervision according to claim 1, characterized in that: A groove one (101) is provided at the top end of the cylindrical main body (1) and the bottom end of the conical main body (1), and a rubber pad (102) is fixedly connected inside the groove one (101).

3. A rebound hammer for engineering supervision according to claim 1 or 2, characterized in that: The lower end of the rear cover (4) is fixedly connected to a buffer spring (401), and the lower edge of the rear cover (4) is fixedly connected to a protrusion guide (402), and the protrusion guide (402) is fitted and slidably connected to the groove one (101).

4. The rebound hammer for engineering supervision according to claim 1, characterized in that: The inner surface of the slider (2) is slidably connected to the outer surface of the lower end of the cylindrical body (1), and a second groove (201) is provided on one side of the slider (2), a third groove (202) is provided at the upper end of the second groove (201), and a threaded hole (203) is provided on one side of the third groove (202).

5. The rebound hammer for engineering supervision according to claim 1, characterized in that: The fixing frame (3) has a connection hole (301) at its upper end, a safety rope (6) being fixedly connected to the connection hole (301), and a symmetrical second threaded hole (302) being provided at its lower end, the second threaded hole (302) being symmetrically threadedly connected to a fixing handle (303), and the fixing handle (303) being threadedly connected to the second threaded hole (302) and the first threaded hole (203).

6. The rebound hammer for engineering supervision according to claim 1, characterized in that: The outer surface of the upper end of the cylindrical main body (1) is provided with anti-slip grooves (7).

7. The rebound hammer for engineering supervision according to claim 4, characterized in that: The height of the second groove (201) is H1, the height of the lower end of the fixing frame (3) is H2, the remaining length of the retracted impact rod (5) is H3, and the length of the conical main body (1) is H4, then H1=H2+H3+H4.

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