Portable concrete strength detection instrument

Abstract

The utility model discloses a portable concrete strength detection instrument which comprises a rebound apparatus body, a support frame is slidably connected to the outer side of the rebound apparatus body, an adjusting table is slidably arranged on the outer side of the support frame, four side surfaces of the adjusting table are respectively and rotatably connected with a support leg with one movable end, and the adjusting table comprises a limiting assembly and a locking assembly. The limiting assembly comprises a fixing plate and a limiting frame, the fixing plate is fixedly connected with the adjusting table, the limiting frame is connected with the fixing plate through bolts, and the limiting frame is located on the outer sides of the supporting legs and used for limiting the supporting angles of the supporting legs. Meanwhile, the four supporting legs can keep the same supporting angle after supporting the wall surface through the limiting frame, so that the rebound apparatus body can vertically face the wall surface, and measurement errors caused by angle deviation are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to concrete quality detection technical field, especially a portable concrete strength detection instrument. BACKGROUND

[0002] The basic principle of the rebound hammer is that a spring drives a weight, the weight hits a striking rod in contact with the surface of the concrete vertically with constant kinetic energy, makes the local concrete deform and absorbs part of the energy, another part of the energy is converted into the rebounding kinetic energy of the weight, when the rebounding kinetic energy is all converted into potential energy, the weight rebounds to the maximum distance, the instrument displays the maximum rebounding distance of the weight as the rebound value (the ratio of the maximum rebounding distance and the initial length of the spring), when using the rebound hammer, the user must ensure that the rebound hammer always keeps vertical to the wall surface, only in this way can the accuracy of the detection result of the rebound hammer be ensured, however, the hand cannot well ensure that the rebound hammer always keeps vertical to the wall surface, thereby leading to the inaccuracy of the concrete strength detection result, therefore, we design a concrete compressive strength detection device to solve the above problems. SUMMARY

[0003] The utility model wants to reach the purpose is to provide a kind of portable concrete strength detection instrument, solve the rebound hammer of current without stabilizing device, through hand cannot well ensure that the rebound hammer always keeps vertical to the wall surface, lead to the problem of inaccuracy of measurement precision.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme: a kind of portable concrete strength detection instrument, including rebound hammer body, the support frame is slidably connected to the outer side of the rebound hammer body, the outer side of the support frame is slidably provided with adjusting table, one end of the support leg of the four side surfaces of the adjusting table is rotatably connected, the adjusting table includes limiting assembly and locking assembly, the fixed plate and the adjusting table are fixedly connected, the limiting frame is connected by bolt with the fixed plate, the limiting frame is located at the outer side of the support leg, for limiting the support angle of the support leg, the two side surfaces of the adjusting table are provided with locking slot, the locking assembly is arranged on the adjusting table and extends into the locking slot, for locking the sliding of the adjusting table.

[0005] Further, the locking assembly includes a pressing rod, a locking plate and a spring, the pressing rod extends from the outer side of the adjusting table into the locking slot, the locking plate is arranged in the locking slot and connected with the pressing rod, and the spring is arranged on the pressing rod for driving the pressing rod to reset.

[0006] Further, the inner top surface of the locking slot is provided with a keyway, and the upper surface of the locking plate is provided with a protruding block.

[0007] Further, the anti-skid rubber pad is arranged on the movable end of the support leg.

[0008] Further, the first guide rail is arranged on the outer side of the rebound instrument body, and the first guide groove is further arranged on the inner side of the support frame.

[0009] Further, the second guide rail is further arranged on the outer side of the support frame, and the second guide groove is arranged on the inner side of the adjusting table.

[0010] Compared with the prior art, the rebound instrument body can be kept perpendicular to the wall surface during measurement, measurement errors caused by angle deviation are avoided, and the accuracy of concrete strength detection is improved.

[0011] The height of the adjusting table can be adjusted through sliding and locked through the locking assembly, the operation is simple, the applicability is strong, the support leg can be stored, the occupied space is small, and the portable concrete strength detection instrument is convenient to carry. BRIEF DESCRIPTION OF DRAWINGS

[0012] The utility model makes further explanation in connection with the drawings:

[0013] Figure 1 It is the three-dimensional structure of the portable concrete strength detection instrument of the utility model Figure 1 ;

[0014] Figure 2 It is the three-dimensional structure of the portable concrete strength detection instrument of the utility model Figure 2 ;

[0015] Figure 3 It is the structure diagram of the locking assembly of the utility model

[0016] Figure 4 It is the internal structure diagram of the support frame of the utility model.

[0017] In the drawing: 1 rebound instrument body, 11 first guide rail, 2 support frame, 21 locking groove, 22 key groove, 23 first guide groove, 24 second guide rail, 3 adjusting table, 31 limiting assembly, 32 second guide groove, 311 fixed plate, 312 limiting frame, 32 locking assembly, 321 pressing rod, 322 locking plate, 323 spring, 324 protruding block, 4 support leg, 5 anti-skid rubber pad. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0019] The technical scheme of the utility model will be described in detail below with specific embodiments. The following specific embodiments can be combined or replaced according to actual conditions, and the same or similar concepts or processes may not be described in some embodiments.

[0020] As Figures 1 to 4 shown, the utility model provides a portable concrete strength detection instrument, including rebound instrument body 1, the outside of rebound instrument body 1 is connected with support frame 2 slidingly, the outside of support frame 2 is equipped with adjusting platform 3 slidingly, four lateral surfaces of adjusting platform 3 are rotatably connected with one end movable support leg 4, adjusting platform 3 includes limiting assembly 31 and locking assembly 32, limiting assembly 31 includes fixed plate 311 and limiting frame 312, fixed plate 311 is fixedly connected with adjusting platform 3, limiting frame 312 is connected with fixed plate 311 by bolt, limiting frame 312 is located at the outside of support leg 4, for limiting the support angle of support leg 4, two lateral surfaces of adjusting platform 3 are equipped with locking slot 21, locking assembly 32 is arranged on adjusting platform 3 and extends into locking slot 21, for locking the sliding of adjusting platform 3.

[0021] As Figure 1 , 2 and Figure 4The utility model discloses rebound apparatus body 1 type is HT450 -A high -strength rebound apparatus body 1, and the rectangular support frame 2 is equipped with in rebound apparatus body 1 outer cover, and rebound apparatus body 1 and support frame 2 are sliding connection, and the rectangular adjusting platform 3 is also equipped with in the outside of support frame 2, and adjusting platform 3 is also sliding connection with support frame 2, and the recess is all equipped with in four side surfaces of adjusting platform 3, and the support foot 4 that can rotate and open outward is equipped with in the recess and is composed of rotating pin and support rod, and rotating pin is connected in the recess, and support rod is rotatably connected with rotating pin, and the length of support foot 4 is greater than the length of support frame 2, when needing to measure the strength of concrete wall surface, four support feet 4 are opened, and the support foot 4 after opening is abutted on the wall surface, and the outside of adjusting platform 3 is also equipped with the limiting assembly 31, and the limiting assembly 31 includes fixed plate 311 and limiting frame 312, and fixed plate 311 is fixedly connected on the outside of adjusting platform 3, and is used for supporting limiting frame 312 to move on the outside of adjusting platform 3, and limiting frame 312 is rectangular body, and is also equipped with on the outside of adjusting platform 3, and can move towards the movable end of support foot 4, and limiting frame 312 and fixed plate 311 are connected through screw thread, and the movement of limiting frame 312 can be realized by rotating screw rod, and limiting frame 312 can keep four support feet 4 at the same opening angle after opening, avoid the inclination of four support feet 4 when supporting on the wall surface, ensure that rebound apparatus body 1 on support frame 2 can face the wall surface perpendicularly, avoid the measurement error caused by angle deviation, thereby improve the accuracy of concrete strength detection, and in order that the portable concrete strength detection instrument of the utility model can be applicable to multiple occasions and wall surface, the distance between rebound apparatus body 1 and wall surface can be adjusted, adjusting platform 3 is arranged to be slidably on support frame 2, the distance between rebound apparatus body 1 and wall surface is changed by changing the position of adjusting platform 3, and again, locking assembly 32 is arranged on adjusting platform 3, and locking assembly 32 is used for locking the sliding of adjusting platform 3, so that support foot 4 and adjusting platform 3 can keep fixed during measurement, solve the difficulty of manually fixing adjusting platform 3 during measurement, make the measurement more convenient.

[0022] The utility model discloses the use method, and rebound apparatus body 1 can slide on support frame 2, and when using, can hold support frame 2, first adjust the position of adjusting platform 3 and limiting plate, after adjusting the position, simply open four support feet 4 with hand, after opening, hold support frame 2 and push the whole concrete strength detection instrument to the wall surface, until four support feet 4 and limiting plate abut, at this moment, rebound apparatus body 1 on support frame 2 keeps perpendicular to the wall surface, only need to push rebound apparatus body 1, and rebound apparatus body 1 slides on support frame 2 and carries out strength detection to the concrete of wall surface.

[0023] As Figure 1 And Figure 3As shown, the locking assembly 32 for locking the adjusting table 3 includes a pressing rod 321, a locking plate 322 and a spring 323, a rectangular locking slot 21 is formed on both sides of the support frame 2, the pressing rod 321 is T-shaped structure, the tail end of the pressing rod 321 penetrates into the locking slot 21 from the outside of the adjusting table 3, the locking plate 322 is installed in the locking slot 21 and forms a cross structure with the locking slot 21, the tail end of the pressing rod 321 is screwed or welded with the locking plate 322, the spring 323 is installed on the waist of the pressing rod 321 and located on the outside of the adjusting table 3, one end of the spring 323 abuts on the bottom surface of the upper end of the pressing rod 321 and the other end abuts on the outside of the adjusting table 3, meanwhile, the upper surface of the locking slot 21 is provided with a rectangularly arranged key groove 22 and the upper surface of the locking plate 322 is provided with a protrusion 324 matched with the key groove 22, the operation method of the locking assembly 32 of the utility model is that the upper end of the pressing rod 321 is pressed downward to make the pressing rod 321 move into the locking slot 21 and drive the locking plate 322 to move downward to make the protrusion 324 disengage from the key groove 22 of the locking slot 21, the pressing rod 321 needs to be kept to exert force to move the adjusting table 3, that is, the adjusting table 3 can be pushed to move, when the pressing rod 321 is released, the spring 323 drives the pressing rod 321 to move upward to make the locking plate 322 move upward again to adhere to the upper surface of the locking slot 21, meanwhile, the protrusion 324 on the locking plate 322 is matched with the key groove 22 to ensure that the adjusting table 3 does not slide again, the locking structure is simple and the operation is convenient.

[0024] As shown in the figure, Figure 1 In order to improve the support stability of the supporting leg 4, the movable end of the supporting leg 4 is provided with an antiskid rubber pad 5, the bottom end of the four supporting legs 4, that is, the end abutting against the wall surface is provided with the antiskid rubber pad 5, the antiskid rubber pad 5 is a cylinder, the friction between the supporting leg 4 and the wall surface is improved through the antiskid rubber pad 5 to ensure the stability of the abutment between the supporting leg 4 and the wall surface and prevent the sliding during the measurement from affecting the measurement accuracy.

[0025] As shown in the figure, Figure 1 The outer side of the rebound instrument body 1 is provided with a first guide rail 23, the inner side of the support frame 2 is further provided with a first guide groove 23, the first guide rail 23 is slidably connected with the first guide groove 23, the connection between the support frame 2 and the rebound instrument body 1 is more stable through the first guide rail 23 and the first guide groove 23, the both ends of the first guide rail 23 are provided with a plug pin slot into which a plug pin can be inserted, the plug pin is inserted into the first guide rail 23, the plug pin prevents the rebound instrument body 1 from sliding off the support frame 2, after the plug pin is pulled out, the rebound instrument body 1 can be directly disassembled from the support frame 2, which is convenient for the maintenance and replacement of the rebound instrument body 1.

[0026] The second guide rail 24 is arranged on the outer side of the support frame 2, and the inner side of the adjusting table 3 is provided with a second guide groove 32, the second guide rail 24 is in sliding connection with the second guide groove 32, the second guide rail 24 and the second guide groove 32 are the same in structure as the first guide rail 23 and the second guide rail 24, the second guide rail 24 is also provided with a plug-in pin slot in which the plug-in pin can be inserted, and when the plug-in pin is inserted into the plug-in pin slot, the adjusting table 3 cannot slide off the support frame 2, and when the plug-in pin is removed, the adjusting table 3 can be separated from the support frame 2, so that the maintenance and replacement are facilitated.

[0027] In addition to the preferred embodiments described above, the utility model also has other implementation manners, and all other embodiments obtained by the person skilled in the art based on the embodiments in the utility model without creative labor belong to the range of the utility model claimed.

Claims

1. A portable concrete strength detection instrument comprising a rebound hammer body, characterized in that, The rebound instrument body is slidably connected with a support frame outside, the outside of the support frame is slidably provided with an adjusting table, four sides of the adjusting table are respectively rotatably connected with a movable support leg, the adjusting table comprises a limiting assembly and a locking assembly, the limiting assembly comprises a fixed plate and a limiting frame, the fixed plate is fixedly connected with the adjusting table, the limiting frame is connected with the fixed plate through bolts, the limiting frame is located outside the support leg, and the limiting frame is used for limiting the support angle of the support leg, two sides of the adjusting table are provided with locking grooves, the locking assembly is arranged on the adjusting table and extends into the locking groove, and the locking assembly is used for locking the sliding of the adjusting table.

2. The portable concrete strength testing apparatus of claim 1, wherein, The locking assembly comprises a pressing rod, a locking plate and a spring, the pressing rod extends into the locking groove from the outside of the adjusting table, the locking plate is arranged in the locking groove and connected with the pressing rod, and the spring is arranged on the pressing rod and used for driving the pressing rod to reset.

3. The portable concrete strength testing apparatus of claim 1, wherein, An inner top surface of the locking groove is provided with a key groove, and an upper surface of the locking plate is provided with a protruding block.

4. The portable concrete strength testing apparatus of claim 1, wherein, A non-slip rubber pad is arranged on a movable end of the support leg.

5. The portable concrete strength testing apparatus of claim 1, wherein, The outside of the rebound instrument body is provided with a first guide rail, and the inside of the support frame is further provided with a first guide groove, and the first guide rail is slidably connected with the first guide groove.

6. The portable concrete strength testing apparatus of claim 1, wherein, The outside of the support frame is further provided with a second guide rail, the inside of the adjusting table is provided with a second guide groove, and the second guide rail is slidably connected with the second guide groove.

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