Marking device based on concrete strength detection

Abstract

The utility model discloses a marking device based on concrete strength detection, which comprises a plurality of first marking plates, a telescopic rod and a second fixing piece, the plurality of first marking plates are spliced and combined to form 16 measuring point grids, the telescopic rod is arranged on the first marking plates and is rotatably connected with the first marking plates, the telescopic end of the telescopic rod is provided with the first fixing piece, and the second fixing piece is connected with the telescopic rod. When the telescopic rod is in an extension state, the length of the telescopic rod is L, L is smaller than L0, the second fixing piece is installed on the first marking plate, and the first fixing piece can be matched with the second fixing piece. When the measuring areas are marked, the telescopic rod is in an extension state, the distance between the two adjacent measuring areas is ensured to be smaller than a certain specific value through the telescopic rod, compared with an operation mode of using a graduated scale, the mode is simple in structure and convenient to operate, the operation steps of marking the measuring areas can be simplified, and the marking efficiency of the measuring areas is improved; and the detection efficiency of the concrete strength can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete strength detection, in particular to a marking device based on concrete strength detection. Background Art

[0002] Concrete strength is the basis of the structural strength of construction projects. It is a key safety control indicator in construction projects and is a content that needs to be repeatedly tested in engineering construction. The most commonly used detection method is the rebound method. In the process of rebound detection, it is necessary to mark several measurement areas on the concrete casting surface to be tested, and read 16 rebound values ​​in each measurement area (that is, each measurement area contains 16 measurement point grids, and the rebound values ​​of the 16 measurement point grids are read by the rebound instrument). For this reason, we need to provide a marking device based on concrete strength detection to mark several measurement areas on the concrete casting surface to be tested.

[0003] At present, in the process of rebound method detection, it is required that the distance between two adjacent measurement areas should not be greater than a certain specific value (generally 2m). However, in actual detection, the detection personnel need to carry a marking device and a ruler. When marking, first mark a measurement area through the marking device, and then mark another measurement area through the marking device with the cooperation of the ruler to ensure that the distance between the two adjacent measurement areas should not be greater than a certain specific value. Such operation requires the continuous use of the ruler, which is inconvenient to operate and will affect the marking efficiency of the measurement area, and then affect the detection efficiency of concrete strength. Utility Model Content

[0004] The technical problem to be solved by the utility model is: in order to solve the technical problem that the frequent use of a ruler in the existing marking measurement area affects the efficiency of concrete strength detection, the utility model provides a marking device based on concrete strength detection, and through the improvement of the marking device structure, when marking the measurement area, there is no need to use a ruler, which can improve the detection efficiency of concrete strength.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a marking device based on concrete strength detection, comprising: a plurality of first marking plates, a telescopic rod and a second fixing member, the plurality of first marking plates are spliced ​​and combined to form 16 measuring point grids, the telescopic rod is installed on the first marking plate and is rotatably connected to the first marking plate, the telescopic end of the telescopic rod is provided with a first fixing member, when the telescopic rod is in an extended state, the length of the telescopic rod is L, L<L0, the second fixing member is installed on the first marking plate, and the first fixing member can cooperate with the second fixing member; wherein: when the first fixing member is detached from the second fixing member, the telescopic rod is in an extended state to mark the measuring area; when the first fixing member is connected to the second fixing member, the telescopic rod is in a shortened state, and the telescopic end of the telescopic rod is connected to the first marking plate.

[0006] Therefore, when marking the measuring area, the telescopic rod is in an extended state, and the telescopic rod is used to ensure that the distance between two adjacent measuring areas is less than a certain specific value. Compared with the operation method of using a ruler, this method has a simple structure and is easy to operate. It can simplify the operating steps of marking the measuring area to improve the marking efficiency of the measuring area, thereby improving the detection efficiency of the concrete strength. At the same time, when carrying, the telescopic rod is in a shortened state, and with the cooperation of the first fixing member and the second fixing member, the telescopic end of the telescopic rod is connected to the first marking plate, which can facilitate the detection personnel to carry the entire marking device.

[0007] Furthermore, two adjacent first marking plates are connected by sliding connection, thereby enabling the size of the measuring point grid to be adjusted by means of sliding connection.

[0008] Furthermore, it also includes: a plurality of adjusting devices, the adjusting devices are used to control the distance between two adjacent first marking plates to adjust the size of the measuring point grid. Thus, the size of the measuring point grid can be changed by the adjusting devices to achieve strength testing of different types of concrete.

[0009] Furthermore, the adjusting device includes: a sliding rod, an adjusting rod and a limit spring, the sliding rod is installed on the first marking plate, the adjusting rod is located inside the first marking plate, and one end of the adjusting rod extends to the outside of the first marking plate, the other end of the adjusting rod passes through the sliding rod and is slidably connected to the sliding rod, the limit spring is sleeved on the outside of the adjusting rod, and the two ends of the limit spring are respectively connected to the first marking plate and the adjusting rod.

[0010] Furthermore, the sliding rod is provided with a first limiting hole and a second limiting hole; wherein: when the adjusting rod passes through the first limiting hole, the measuring point grid is in a compressed state, and when the adjusting rod passes through the second limiting hole, the measuring point grid is in an extended state. Thus, when there is no exposed steel bar embedded part on the concrete casting surface to be tested, the concrete strength can be tested by putting the measuring point grid in a compressed state; when there is an exposed steel bar embedded part on the concrete casting surface to be tested, the measuring point grid needs to be adjusted to an extended state to ensure the accuracy of the concrete strength test result.

[0011] Furthermore, the adjusting rod includes: an adjusting rod body, an adjusting portion and a limiting portion, the adjusting rod body passes through the first marking plate and is slidably connected to the first marking plate, the adjusting portion is located outside the first marking plate and is connected to one end of the adjusting rod body, and the limiting portion is located inside the first marking plate and is connected to the adjusting rod body. Thus, the two adjacent first marking plates can be connected together through the adjusting rod body to ensure that the two adjacent first marking plates will not be separated; the adjusting portion can facilitate the inspector to swing the adjusting rod body outward to achieve the size adjustment of the measuring point grid; the limiting portion can ensure that the spring will not contact the sliding rod, and when the inspector releases the adjusting portion, the adjusting rod body can move to the side close to the first marking plate under the action of the spring to reset the adjusting rod body.

[0012] Furthermore, the limit spring is sleeved on the outside of the adjusting rod body, and the two ends of the limit spring are respectively abutted against the first marking plate and the limit part, and the other end of the adjusting rod body passes through the first limit hole or the second limit hole and is slidably connected to the sliding rod.

[0013] Furthermore, it also includes: a second marking plate, which is installed on the first marking plate.

[0014] Furthermore, it also includes: a plurality of sponge pads, and the first marking plate and the second marking plate are both equipped with the sponge pads. Therefore, when marking the measuring area, the sponge pads are stained with ink to achieve marking of the measuring area.

[0015] Furthermore, it also includes a handle, which is located on a side of the first marking plate away from the telescopic rod and connected to the first marking plate. Thus, the handle can facilitate the inspection personnel to carry the entire marking device.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] When marking the measuring area, the telescopic rod is in an extended state, and the telescopic rod is used to ensure that the distance between two adjacent measuring areas is less than a certain specific value. Compared with the operation method of using a ruler, this method has a simple structure and is easy to operate. It can simplify the operating steps of marking the measuring area to improve the marking efficiency of the measuring area, thereby improving the detection efficiency of the concrete strength. At the same time, when carrying, the telescopic rod is in a shortened state, and with the cooperation of the first fixing member and the second fixing member, the telescopic end of the telescopic rod is connected to the first marking plate, which can facilitate the detection personnel to carry the entire marking device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 It is a structural schematic diagram of the marking device based on concrete strength detection of the utility model in a compressed state;

[0020] Figure 2 For the utility model Figure 1 A schematic diagram of the enlarged local structure at center A;

[0021] Figure 3 For the utility model Figure 1 A magnified schematic diagram of the local structure at B in the middle;

[0022] Figure 4 For the utility model Figure 1 A magnified schematic diagram of the local structure at C in the middle;

[0023] Figure 5 It is a structural schematic diagram of the connection between the first marking plate in a compressed state and the adjusting device of the marking device based on concrete strength detection of the utility model;

[0024] Figure 6 It is a structural schematic diagram of the marking device based on concrete strength detection of the utility model in an extended state;

[0025] Figure 7 It is a structural schematic diagram of the connection between the first marking plate of the marking device based on concrete strength detection of the utility model in an extended state and the adjusting device;

[0026] Figure 8 It is an exploded view of the regulating device of the utility model;

[0027] Fig. 9 It is a structural schematic diagram of the adjustment rod of the utility model;

[0028] Fig.10 This is a schematic diagram of the structure of the "L"-shaped first marking plate of the utility model;

[0029] Fig.11This is a schematic diagram of the structure of the "T"-shaped first marking plate of the utility model;

[0030] Fig.12 It is a structural schematic diagram of the "cross"-shaped first marking plate of the utility model.

[0031] In the figure: 1. first marking plate; 2. telescopic rod; 3. first fixing member; 4. second fixing member; 5. adjusting device; 501. sliding rod; 5011. first limiting hole; 5012. second limiting hole; 502. adjusting rod; 5021. adjusting rod body; 5022. adjusting part; 5023. limiting part; 503. limiting spring; 6. second marking plate; 7. sponge pad; 8. handle. DETAILED DESCRIPTION

[0032] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0033] In the description of the present utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] like Figures 1 to 12As shown, it is the optimal embodiment of the utility model. The marking device based on concrete strength detection of this embodiment includes: multiple first marking plates 1, telescopic rods 2 and second fixing members 4. Multiple first marking plates 1 are spliced ​​and combined to form 16 measuring point grids. The telescopic rods 2 are installed on the first marking plates 1 and are rotatably connected to the first marking plates 1. The telescopic end of the telescopic rod 2 is provided with a first fixing member 3. When the telescopic rod 2 is in an extended state, the length of the telescopic rod 2 is L, L<L0. The second fixing member 4 is installed on the first marking plate 1, and the first fixing member 3 can cooperate with the second fixing member 4; wherein: when the first fixing member 3 is separated from the second fixing member 4, the telescopic rod 2 is in an extended state to mark the measuring area; when the first fixing member 3 is connected to the second fixing member 4, the telescopic rod 2 is in a shortened state, and the telescopic end of the telescopic rod 2 is connected to the first marking plate 1. Therefore, when marking the measuring area, the telescopic rod 2 is in an extended state, and the telescopic rod 2 is used to ensure that the distance between two adjacent measuring areas is less than a certain specific value. Compared with the operation method of using a ruler, this method has a simple structure and is easy to operate. It can simplify the operating steps of marking the measuring area to improve the marking efficiency of the measuring area, thereby improving the detection efficiency of the concrete strength. At the same time, when carrying, the telescopic rod 2 is in a shortened state, and with the cooperation of the first fixing member 3 and the second fixing member 4, the telescopic end of the telescopic rod 2 is connected to the first marking plate 1, which can facilitate the detection personnel to carry the entire marking device.

[0036] In other words, when marking the measuring area, the telescopic rod 2 in the extended state is used as a ruler. The telescopic rod 2 is placed between the marked measuring area and the marking device (at this time, the marking device is about to mark the next measuring area). When marking the next measuring area, it is only necessary to pick up the entire marking device and place the telescopic end of the telescopic rod 2 at one end of the marked measuring area. Such operation can simplify the operating steps of marking the measuring area to improve the marking efficiency of the measuring area, thereby improving the detection efficiency of the concrete strength. At the same time, when carrying, since the telescopic rod 2 is installed on the first marking plate 1 instead of being disassembled into two structures for carrying, compared with carrying both the marking device and the ruler, the design method of the present application can be easy to carry.

[0037] Specifically, the first fixing member 3 and the second fixing member 4 are both made of magnetic materials. When in use, the telescopic end of the telescopic rod 2 is connected to the first marking plate 1 by magnetic attraction; L0 is a preset value, generally 2m.

[0038] In this embodiment, two adjacent first marking plates 1 are slidably connected; it also includes: a plurality of adjustment devices 5, the adjustment devices 5 are used to control the spacing between two adjacent first marking plates 1 to adjust the size of the measuring point grid; the adjustment device 5 includes: a slide bar 501, an adjustment bar 502 and a limit spring 503, the slide bar 501 is installed on the first marking plate 1, the adjustment bar 502 is located in the first marking plate 1, and one end of the adjustment bar 502 extends to the outside of the first marking plate 1, the other end of the adjustment bar 502 passes through the slide bar 501 and is slidably connected to the slide bar 501, the limit spring 503 is sleeved on the outside of the adjustment bar 502, and the two ends of the limit spring 503 are respectively connected to the first marking plate 1 and the adjustment bar 502, and the slide bar 501 is provided with a first limit hole 5011 and a second limit hole 5012; wherein: when the adjustment bar 502 passes through the first limit hole 50 11, the measuring point grid is in a compressed state, and when the adjusting rod 502 passes through the second limiting hole 5012, the measuring point grid is in an extended state; the adjusting rod 502 includes: an adjusting rod body 5021, an adjusting portion 5022 and a limiting portion 5023, the adjusting rod body 5021 passes through the first marking plate 1 and is slidably connected to the first marking plate 1, the adjusting portion 5022 is located outside the first marking plate 1 and is connected to one end of the adjusting rod body 5021, the limiting portion 5023 is located inside the first marking plate 1 and is connected to the adjusting rod body 5021, the limiting spring 503 is sleeved on the outside of the adjusting rod body 5021, and the two ends of the limiting spring 503 are respectively abutted against the first marking plate 1 and the limiting portion 5023, the other end of the adjusting rod body 5021 passes through the first limiting hole 5011 or the second limiting hole 5012, and is slidably connected to the sliding rod 501. Thus, the size of the measuring point grid can be adjusted by means of sliding connection; the size of the measuring point grid can be changed by the adjusting device 5 to realize the strength detection of different types of concrete; when there is no exposed steel bar embedded part on the concrete casting surface to be detected, the concrete strength detection can be realized when the measuring point grid is in a compressed state; when there is an exposed steel bar embedded part on the concrete casting surface to be detected, the measuring point grid needs to be adjusted to an extended state to ensure the accuracy of the concrete strength detection result; the two adjacent first marking plates 1 can be connected together by the adjusting rod 502 body to ensure that the two adjacent first marking plates 1 will not be separated; the adjusting part 5022 can facilitate the detection personnel to swing the adjusting rod 502 body outward to realize the size adjustment of the measuring point grid; the limiting part 5023 can ensure that the spring will not contact the sliding rod 501, and when the detection personnel releases the adjusting part 5022, the adjusting rod 502 body can move to the side close to the first marking plate 1 under the action of the spring to reset the adjusting rod 502 body.

[0039] Specifically, the first marking plate 1 is divided into three types, which are respectively denoted as an "L"-shaped first marking plate 1 (such as Fig.10As shown), "T" shaped first marking plate 1 (as Fig.11 As shown) and a "cross" shaped first marking plate 1 (as shown Fig.12 As shown), wherein: there are four "L"-shaped first marking plates 1, twelve "T"-shaped first marking plates 1, and nine "cross"-shaped first marking plates 1; when spliced ​​together, four "L"-shaped first marking plates 1 are located at four corners, twelve "T"-shaped first marking plates 1 are located at four sides, and nine "cross"-shaped first marking plates 1 are located inside, so as to achieve 16 squares (i.e., 16 measuring point grids, such as Figure 1 , 6 shown).

[0040] Specifically, the plurality of adjusting devices 5 are divided into two categories, namely, Class A adjusting devices 5 (including: a slide bar 501, an adjusting rod 502 and a limit spring 503) and Class B adjusting devices 5 (including only: a slide bar 501); the Class A adjusting devices 5 are connected between the "L"-shaped first marking plate 1 and the "T"-shaped first marking plate 1 and between the "T"-shaped first marking plate 1 and the "T"-shaped first marking plate 1. When connected, since the connection point between the "L"-shaped first marking plate 1 and the "T"-shaped first marking plate 1 is located at At the edge of the measuring area, therefore, it is necessary to limit the position through the adjusting rod 502 and the spring to ensure that the "L"-shaped first marking plate 1 and the "T"-shaped first marking plate 1 will not separate; the "T"-shaped first marking plate 1 and the "cross"-shaped first marking plate 1 are connected through the Class B adjusting device 5. Since the connection point between the "T"-shaped first marking plate 1 and the "cross"-shaped first marking plate 1 is located inside the measuring area, it is only necessary to ensure that the "T"-shaped first marking plate 1 and the "cross"-shaped first marking plate 1 can slide.

[0041] In this embodiment, it further comprises: a second marking plate 6 and a plurality of sponge pads 7, which are mounted on the first marking plate 1, and the first marking plate 1 and the second marking plate 6 are both mounted with sponge pads 7. Therefore, when marking the measuring area, the sponge pads 7 are stained with ink to achieve marking of the measuring area.

[0042] In this embodiment, it further comprises: a handle 8, which is located at a side of the first marking plate 1 away from the telescopic rod 2 and connected to the first marking plate 1. Thus, the handle 8 can facilitate the inspector to carry the entire marking device.

[0043] The marking process of the measuring area of ​​the utility model is: first, according to the type of the concrete casting surface to be detected, select whether the measuring point grid is in a compressed state or an extended state; then, adjust the marking device to a state matching the type of the concrete casting surface to be detected through the adjustment device 5; then, dip the sponge pad 7 in ink, and finally, adjust the telescopic rod 2 to an extended state, and press the entire marking device to the surface of the concrete casting surface to be detected, so as to complete the marking of the measuring area and form 16 measuring point grids.

[0044] To sum up, when marking the measuring area, the telescopic rod 2 is in an extended state, and the telescopic rod 2 is used to ensure that the distance between two adjacent measuring areas is less than a certain specific value. Compared with the operation method of using a ruler, this method has a simple structure and is easy to operate. It can simplify the operating steps of marking the measuring area to improve the marking efficiency of the measuring area, thereby improving the detection efficiency of the concrete strength. At the same time, when carrying, the telescopic rod 2 is in a shortened state, and with the cooperation of the first fixing member 3 and the second fixing member 4, the telescopic end of the telescopic rod 2 is connected to the first marking plate 1, which can facilitate the detection personnel to carry the entire marking device.

[0045] The above description is based on the ideal embodiment of the utility model. Through the above description, relevant staff can make various changes and modifications without deviating from the technical concept of the utility model. The technical scope of the utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A marking device based on concrete strength detection, characterized in that: include: A plurality of first marking plates (1), wherein the plurality of first marking plates (1) are spliced ​​and combined to form 16 measuring point grids; A telescopic rod (2), the telescopic rod (2) being mounted on the first marking plate (1) and being rotatably connected to the first marking plate (1), a first fixing member (3) being provided at the telescopic end of the telescopic rod (2), and when the telescopic rod (2) is in an extended state, the length of the telescopic rod (2) is L, L<L0; A second fixing member (4), the second fixing member (4) being mounted on the first marking plate (1), and the first fixing member (3) being capable of cooperating with the second fixing member (4); Wherein: when the first fixing member (3) is separated from the second fixing member (4), the telescopic rod (2) is in an extended state to perform measurement area marking; When the first fixing member (3) is connected to the second fixing member (4), the telescopic rod (2) is in a shortened state, and the telescopic end of the telescopic rod (2) is connected to the first marking plate (1).

2. The marking device based on concrete strength detection according to claim 1 is characterized in that: Two adjacent first marking plates (1) are slidably connected.

3. The marking device based on concrete strength detection according to claim 1 is characterized in that: Also includes: A plurality of adjusting devices (5), wherein the adjusting devices (5) are used to control the distance between two adjacent first marking plates (1) so as to adjust the size of the measuring point grid.

4. The marking device based on concrete strength detection according to claim 3 is characterized in that: The regulating device (5) comprises: A slide bar (501), an adjusting bar (502) and a limit spring (503), wherein the slide bar (501) is mounted on the first marking plate (1), the adjusting bar (502) is located inside the first marking plate (1), and one end of the adjusting bar (502) extends to the outside of the first marking plate (1), the other end of the adjusting bar (502) passes through the slide bar (501) and is slidably connected to the slide bar (501), the limit spring (503) is sleeved on the outside of the adjusting bar (502), and the two ends of the limit spring (503) are respectively connected to the first marking plate (1) and the adjusting bar (502).

5. The marking device based on concrete strength detection according to claim 4 is characterized in that: The sliding rod (501) is provided with a first limiting hole (5011) and a second limiting hole (5012); Wherein: when the adjusting rod (502) passes through the first limiting hole (5011), the measuring point grid is in a compressed state; when the adjusting rod (502) passes through the second limiting hole (5012), the measuring point grid is in an extended state.

6. The marking device based on concrete strength detection according to claim 5 is characterized in that: The adjusting rod (502) comprises: An adjusting rod body (5021), an adjusting portion (5022) and a limiting portion (5023), wherein the adjusting rod body (5021) passes through the first marking plate (1) and is slidably connected to the first marking plate (1), the adjusting portion (5022) is located outside the first marking plate (1) and is connected to one end of the adjusting rod body (5021), and the limiting portion (5023) is located inside the first marking plate (1) and is connected to the adjusting rod body (5021).

7. The marking device based on concrete strength detection according to claim 6 is characterized in that: The limit spring (503) is sleeved on the outside of the adjusting rod body (5021), and the two ends of the limit spring (503) are respectively abutted against the first marking plate (1) and the limit portion (5023), and the other end of the adjusting rod body (5021) passes through the first limit hole (5011) or the second limit hole (5012), and is slidably connected to the sliding rod (501).

8. The marking device based on concrete strength detection according to claim 1 is characterized in that: Also includes: A second marking plate (6) is mounted on the first marking plate (1).

9. The marking device based on concrete strength detection according to claim 8 is characterized in that: Also includes: A plurality of sponge pads (7), wherein the first marking plate (1) and the second marking plate (6) are both installed with the sponge pads (7).

10. The marking device based on concrete strength detection according to claim 1 is characterized in that: Also includes: A handle (8), the handle (8) being located on a side of the first marking plate (1) away from the telescopic rod (2) and being connected to the first marking plate (1).

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