Concrete apparent compactness detection equipment

Abstract

The utility model relates to the technical field of concrete compactness detection, in particular to concrete apparent compactness detection equipment which comprises a mounting frame, a detector, moving wheels, a lifting assembly and a driving assembly, the detector is arranged on the inner side of the mounting frame, and a lifting assembly used for moving the detector to the surface of the concrete in the mounting frame in a detection state and elastically buffering downward pressure borne when the detector is connected with the concrete is arranged on the side face of the detector; according to the concrete detection device, the detector is elastically connected with the lifting assembly, so that the situation that when the detector detects concrete, the detector is rigidly connected with the lifting assembly, the downward moving distance of the detector driven by the lifting assembly is larger than a preset distance, large pressure is caused to the detector, and the detector is damaged is avoided; and meanwhile, a motor is replaced by a hand wheel, so that the rotation of the threaded rod has two modes, and the rotation of the threaded rod is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete density detection, in particular to a device for detecting the apparent density of concrete. Background Art

[0002] As an indispensable material in construction projects, concrete's quality is directly related to the safety and service life of buildings. Concrete density is one of the most important indicators of concrete quality. To ensure that concrete density meets requirements, concrete density testing is necessary.

[0003] In the prior art, a Chinese patent document with authorization announcement number CN220912860U discloses a concrete density detection device, in which a concave plate and a detection mechanism are used in combination. The detection mechanism can be moved to a square position of the concrete to be detected through the self-locking universal wheels on the bottom surfaces of the side plates on both sides of the concave plate, and the driving motor is turned on to drive the output end to rotate the driven gear through the active gear under the meshing action, and during the rotation process, the nut is driven to rotate through the rotating rod, so that the threaded rod moves downward along the nut and pushes the push plate until the detection probe installed on the bottom surface of the density detector on the bottom surface of the push plate is vertically in contact with the concrete to be detected, so as to detect the density of the concrete.

[0004] However, the above solution still has the following shortcomings:

[0005] 1. The rigid connection between the threaded rod, push plate and density tester will cause the threaded rod to move downward a large distance, resulting in a large pressure on the density tester when it contacts the concrete;

[0006] 2. Connect the mobile power supply to the motor to run the motor. The threaded rod is driven up and down by the motor. When the power of the mobile power supply is interrupted, the up and down movement of the threaded rod will be restricted. Utility Model Content

[0007] The utility model aims to solve the problems existing in the background technology and propose a device for detecting the apparent density of concrete.

[0008] The technical solution of the utility model is: a concrete apparent density detection device, including a mounting frame, a detector, a moving wheel, a lifting assembly and a driving assembly;

[0009] The detector is arranged on the inner side of the mounting frame, and a lifting assembly is provided on the side of the detector for moving the detector in the mounting frame toward the concrete surface in the detection state and elastically buffering the downward pressure applied when the detector is connected to the concrete; the lifting assembly is installed on the inner side of the mounting frame, and the top end thereof passes through the mounting frame and extends to the upper side of the mounting frame;

[0010] The driving assembly is installed at the top of the lifting assembly and is connected to the mounting frame for driving the lifting assembly to move the detector up and down inside the mounting frame when in use;

[0011] The moving wheels are arranged at the bottom end of the mounting frame for moving the mounting frame when in use.

[0012] Preferably, the lifting assembly includes a threaded rod, a mounting plate, a column, a push plate and a spring;

[0013] The column is installed on the inner side of the mounting frame, and has a slide groove on its side;

[0014] The threaded rod is rotatably mounted on the inner side of the slide groove of the column, and the top end thereof passes through the column and the mounting frame and extends to the top of the mounting frame;

[0015] One end of the mounting plate is sleeved on the outside of the column and extends into the slide groove of the column, and is located inside the column and sleeved on the outside of the threaded rod;

[0016] There are two push plates, which are respectively located at the upper and lower ends of the mounting plate and sleeved on the outer side of the threaded rod;

[0017] The spring is sleeved on the outer side of the threaded rod and is located between the mounting plate and the push plate.

[0018] Preferably, the projection shape of the push plate is rectangular, and when the column and the push plate are in a cooperative installation state, the push plate is accommodated inside the sliding groove of the column.

[0019] Preferably, the mounting plate comprises a mounting plate body, a connecting plate and an internal threaded joint;

[0020] The mounting plate body is sleeved on the outer side of the column;

[0021] The connecting plate is arranged on the mounting plate body and extends to the inner side of the slide groove of the column;

[0022] The internal thread connector is mounted on the lower end surface of the mounting plate body and is threadedly connected to the detector.

[0023] Preferably, a rectangular hole is provided at one end of the mounting plate body, and the connecting plate is located inside the rectangular hole. When the mounting plate and the column are installed in cooperation, the column is accommodated in the rectangular hole, and the connecting plate is accommodated in the slide groove of the column.

[0024] Preferably, a through hole is provided in the middle of the connecting plate, and the diameter of the through hole is larger than the diameter of the threaded rod.

[0025] Preferably, the drive assembly includes a transmission member and a motor;

[0026] The motor is mounted on the mounting frame, and the output shaft extends to the upper end surface of the mounting frame;

[0027] The transmission member is arranged on the threaded rod and the output shaft of the motor for transmitting the threaded rod in use.

[0028] Preferably, it also includes a hand wheel;

[0029] The handwheel is mounted on the top of the threaded rod.

[0030] Compared with the prior art, the above technical solution of the present invention has the following beneficial technical effects:

[0031] The utility model elastically connects the detector and the lifting assembly, so as to avoid the situation in which the detector and the lifting assembly are rigidly connected when the detector is testing concrete, and the lifting assembly drives the detector to move down a distance greater than a preset distance, which causes greater pressure on the detector and causes damage to the detector. At the same time, the handwheel replaces the motor, so that the rotation of the threaded rod has two modes, making the rotation of the threaded rod more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1-2 All of them are three-dimensional diagrams of an embodiment proposed by the utility model.

[0033] Figure 3 This is a schematic diagram of the connection structure of the threaded rod, the mounting plate and the detector in an embodiment of the present utility model.

[0034] Figure 4 The present invention is a schematic cross-sectional view of the structure of the mounting plate in the lifting assembly in one embodiment of the present invention.

[0035] Figure 5 The figure is a schematic diagram of the mounting plate structure in one embodiment of the present invention.

[0036] Figure numerals: 1. Mounting frame; 2. Threaded rod; 3. Mounting plate; 31. Mounting plate body; 32. Connecting plate; 33. Through hole; 34. Rectangular hole; 35. Internal threaded joint; 4. Detector; 5. Moving wheel; 6. Transmission part; 7. Handwheel; 8. Column; 9. Push plate; 10. Spring; 11. Motor. DETAILED DESCRIPTION

[0037] Example 1

[0038] like Figure 1-5 As shown, the present invention proposes a concrete apparent density detection device, comprising a mounting frame 1, a detector 4, a moving wheel 5, a lifting assembly and a driving assembly;

[0039] The detector 4 is arranged on the inner side of the mounting frame 1. A lifting assembly is provided on the side of the detector 4 for moving the detector 4 toward the concrete surface within the mounting frame 1 in the detection state and elastically buffering the downward pressure exerted on the detector 4 when connected to the concrete. The lifting assembly is installed on the inner side of the mounting frame 1, and the top end thereof passes through the mounting frame 1 and extends to the upper side of the mounting frame 1.

[0040] The driving assembly is installed at the top of the lifting assembly and is connected to the mounting frame 1 for driving the lifting assembly to move the detector 4 up and down inside the mounting frame 1 when in use;

[0041] The moving wheel 5 is provided at the bottom end of the mounting frame 1 for moving the mounting frame 1 when in use.

[0042] In this embodiment, the mounting frame 1 is moved to the detection position by the moving wheel 5, and the moving wheel 5 is locked. The driving assembly drives the lifting assembly to work, so that the lifting assembly drives the detector 4 to move toward the concrete, and after the detector 4 contacts the concrete, the detector 4 is buffered so that the detector 4 has an elastic moving distance on the lifting assembly, thereby avoiding the situation where the detector 4 is subjected to greater pressure and damaged due to the rigid connection.

[0043] Example 2

[0044] like Figure 1-4 As shown, the present invention proposes a concrete apparent density detection device. Compared with the first embodiment, in this embodiment, the lifting assembly includes a threaded rod 2, a mounting plate 3, a column 8, a push plate 9 and a spring 10;

[0045] The column 8 is installed on the inner side of the mounting frame 1, and has a slide groove on its side, wherein the length of the slide groove is slightly smaller than the length of the column 8, which is used to increase the moving distance of the detector 4;

[0046] The threaded rod 2 is rotatably mounted on the inner side of the slide groove of the column 8, and the top end thereof passes through the column 8 and the mounting frame 1 and extends to the top of the mounting frame 1. When in use, the threaded rod 2 drives the push plate 9 to move on the inner side of the column 8, and the driving assembly drives the threaded rod 2 to rotate at the top end of the mounting frame 1.

[0047] One end of the mounting plate 3 is sleeved on the outside of the column 8 and extends into the slide groove of the column 8. It is located inside the column 8 and sleeved on the outside of the threaded rod 2;

[0048] There are two push plates 9, and threaded holes are provided in the middle of the two push plates 9. The two push plates 9 are respectively located at the upper and lower ends of the mounting plate 3 and are sleeved on the outer side of the threaded rod 2.

[0049] The spring 10 is sleeved on the outside of the threaded rod 2 and is located between the mounting plate 3 and the push plate 9 for compressing the spring 10 to reduce the rigid pressure on the detector 4 during use.

[0050] In an optional embodiment, the projection shape of the push plate 9 is rectangular. When the column 8 and the push plate 9 are installed in cooperation, the push plate 9 is accommodated inside the slide groove of the column 8 and is used to limit the position of the push plate 9 through the inner wall of the column 8 during use, thereby preventing the push plate 9 from rotating when the threaded rod 2 rotates inside the push plate 9.

[0051] In this embodiment, the threaded rod 2 rotates to drive the two push plates 9 to move synchronously inside the slide groove of the column 8, so that the push plate 9 drives the mounting plate 3 to move on the column 8 through the spring 10, and then the position of the detector 4 is adjusted by the movement of the mounting plate 3. Through the contraction function of the spring 10, after the detector 4 contacts the concrete, the push plate 9 can continue to move a distance to avoid the detector 4 from being subjected to direct pressure.

[0052] Example 3

[0053] like Figure 5 As shown, the present invention proposes a concrete apparent density detection device. Compared with the first embodiment, in this embodiment, the mounting plate 3 includes a mounting plate body 31, a connecting plate 32 and an internal thread joint 35;

[0054] A rectangular hole 34 is provided at one end of the mounting plate body 31, and the column 8 is fitted into the rectangular hole 34 so that the edge of the column 8 is slidably connected to the rectangular hole 34;

[0055] The connecting plate 32 is disposed in the rectangular hole 34 and one end of the connecting plate 32 extends into the column 8. The connecting plate 32 fits in the slide groove of the column 8. A through hole 33 having a diameter larger than that of the threaded rod 2 is provided in the middle of the connecting plate 32 to prevent obstruction between the connecting plate 32 and the threaded rod 2 during use.

[0056] The internal thread connector 35 is mounted on the lower end surface of the mounting plate body 31 and is threadedly connected to the detector 4 for quick assembly and disassembly of the detector 4 during use.

[0057] In this embodiment, the mounting plate body 31 slides on the outside of the column 8 through the rectangular hole 34, and the mounting plate 3 avoids the threaded rod 2 and slides on the inside of the column 8 through the through hole 33, so that the push plate 9 drives the connecting plate 32 to move while the mounting plate body 31 moves along the outside of the column 8, so that the movement stability of the mounting plate 3 is higher.

[0058] Example 4

[0059] like Figure 1-2 As shown, the present invention proposes a concrete apparent density detection device. Compared with the first embodiment, in this embodiment, the driving assembly includes a transmission member 6 and a motor 11;

[0060] The motor 11 is mounted on the mounting frame 1, and the output shaft extends to the upper end surface of the mounting frame 1;

[0061] The transmission member 6 is arranged on the threaded rod 2 and the output shaft of the motor 11 for transmitting the threaded rod 2 in use, wherein the transmission member 6 is a mechanical transmission structure, such as gear meshing connection transmission, belt transmission and chain transmission.

[0062] In an optional embodiment, a hand wheel 7 is further included;

[0063] The hand wheel 7 is mounted on the top of the threaded rod 2 to prevent the threaded rod 2 from being unable to rotate due to power interruption of the transmission member 6 during use.

[0064] In this embodiment, the motor 11 drives the transmission member 6 to rotate, so that the transmission member 6 drives the threaded rod 2 to rotate, and when the motor 11 fails to supply power, the hand wheel 7 is turned to continue to rotate the threaded rod 2.

[0065] In summary, when the present invention is in use, the mounting bracket 1 is moved to the detection position by the moving wheel 5, and the moving wheel 5 is locked, the motor 11 drives the transmission member 6 to rotate the threaded rod 2, and the rotation of the threaded rod 2 drives the two push plates 9 to move synchronously inside the slide groove of the column 8, so that the push plate 9 drives the connecting plate 32 to slide on the inside of the column 8 through the spring 10, and the connecting plate 32 drives the mounting plate body 31 to slide along the outer wall of the column 8, so that the mounting plate 3 moves up and down smoothly, and is threadedly connected to the detector 4 through the internal thread joint 35, so that the position of the detector 4 follows the mounting plate 3. The movement of the mounting plate 3 is adjusted so that the detector 4 moves toward the concrete to detect the apparent density of the concrete. At the same time, the position of the mounting plate 3 is fixed by the support of the detector 4, so that the push plate 9 drives the spring 10 to be compressed, and the distance between the push plate 9 and the mounting plate 3 is reduced, so as to avoid the push plate 9 continuing to move downward after the detector 4 contacts the concrete, causing greater pressure on the detector 4, resulting in damage to the detector 4. At the same time, when the motor 11 cannot supply power, the threaded rod 2 is manually rotated by turning the handwheel 7 to enable the detector 4 to continue working.

[0066] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A concrete apparent density detection device, characterized in that: It comprises a mounting frame (1), a detector (4), a moving wheel (5), a lifting assembly and a driving assembly; The detector (4) is arranged on the inner side of the mounting frame (1), and a lifting assembly is provided on the side of the detector (4) for moving the detector (4) in the mounting frame (1) toward the concrete surface in a detection state and elastically buffering the downward pressure applied when the detector (4) is connected to the concrete; the lifting assembly is installed on the inner side of the mounting frame (1), and the top end thereof penetrates the mounting frame (1) and extends to the upper side of the mounting frame (1); The driving assembly is mounted on the top of the lifting assembly and is connected to the mounting frame (1) for driving the lifting assembly to move the detector (4) up and down inside the mounting frame (1) when in use; The moving wheel (5) is arranged at the bottom end of the mounting frame (1) and is used to move the mounting frame (1) in a use state.

2. A concrete apparent density detection device according to claim 1, characterized in that: The lifting assembly includes a threaded rod (2), a mounting plate (3), a column (8), a push plate (9) and a spring (10); The column (8) is mounted on the inner side of the mounting frame (1), and has a slide groove on its side; The threaded rod (2) is rotatably mounted on the inner side of the slide groove of the column (8), and the top end thereof passes through the column (8) and the mounting frame (1) and extends to the top of the mounting frame (1); One end of the mounting plate (3) is sleeved on the outside of the column (8), extends into the slide groove of the column (8), and is located inside the column (8) and sleeved on the outside of the threaded rod (2); There are two push plates (9), which are respectively located at the upper and lower ends of the mounting plate (3) and sleeved on the outer side of the threaded rod (2); The spring (10) is sleeved on the outside of the threaded rod (2) and is located between the mounting plate (3) and the push plate (9).

3. A concrete apparent density detection device according to claim 2, characterized in that: The projection shape of the push plate (9) is rectangular. When the column (8) and the push plate (9) are in a cooperative installation state, the push plate (9) is cooperatively accommodated inside the slide groove of the column (8).

4. The concrete apparent density detection device according to claim 2, characterized in that: The mounting plate (3) comprises a mounting plate body (31), a connecting plate (32) and an internal thread joint (35); The mounting plate body (31) is sleeved on the outer side of the column (8); The connecting plate (32) is arranged on the mounting plate body (31) and extends to the inner side of the slide groove of the column (8); The internal thread connector (35) is mounted on the lower end surface of the mounting plate body (31) and is threadedly connected to the detector (4).

5. The concrete apparent density detection device according to claim 4, characterized in that: A rectangular hole (34) is provided at one end of the mounting plate body (31), and the connecting plate (32) is located inside the rectangular hole (34). When the mounting plate (3) and the column (8) are in a cooperatively mounted state, the column (8) is cooperatively accommodated in the rectangular hole (34), and the connecting plate (32) is cooperatively accommodated in the slide groove of the column (8).

6. The concrete apparent density detection device according to claim 4, characterized in that: A through hole (33) is provided in the middle of the connecting plate (32), and the diameter of the through hole (33) is larger than the diameter of the threaded rod (2).

7. The concrete apparent density detection device according to claim 1, characterized in that: The driving assembly includes a transmission member (6) and a motor (11); The motor (11) is mounted on the mounting frame (1), and the output shaft extends to the upper end surface of the mounting frame (1); The transmission member (6) is arranged on the threaded rod (2) and the output shaft of the motor (11) and is used to transmit the threaded rod (2) in a use state.

8. The concrete apparent density detection device according to claim 7, characterized in that: Also includes a hand wheel (7); The hand wheel (7) is mounted on the top end of the threaded rod (2).

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