Concrete expansion and shrinkage detector

Abstract

The utility model relates to the technical field of concrete expansion detection equipment, in particular to a concrete expansion and shrinkage detector which comprises a mounting seat, a supporting structure and a detection mechanism, and the supporting structure is mounted on the mounting seat and used for supporting the detection mechanism; the detection mechanism is assembled on the mounting seat and is used for detecting the expansion condition of concrete; the detection mechanism comprises a loading part, a detection part and a protection part, and the loading part is mounted on the mounting seat in a radial sliding manner and is used for loading expandable concrete; the protection part is arranged in the loading part in a replaceable mode, is arranged to be a thin film protection sleeve and is used for protecting the loading part loaded with concrete. And the detection piece is assembled between the mounting seat and the loading piece in a sliding manner and is used for detecting the expansion condition of the concrete after the concrete expands. The purpose of the utility model is that during detection, a detection device does not need to be cleaned, multiple times of detection can be continuously performed, so that the detection efficiency is effectively improved, and the whole instrument is stable in structure and convenient to disassemble.

Description

TECHNICAL FIELD

[0001] The utility model relates to concrete expansion detection equipment technical field especially relates to a kind of concrete expansion and contraction detection instrument. BACKGROUND

[0002] Concrete expansion agent is an additive added in concrete, which makes concrete volume expand through chemical reaction or physical action, thereby improving the crack resistance, impermeability and durability of concrete. Before adding expansion agent into concrete for mixing, the activity of expansion agent needs to be detected in the existing market. Therefore, a detector is needed.

[0003] For example, the Chinese patent with publication number CN207300839U discloses a kind of on-site concrete expansion agent rapid detection device, including the column for placing concrete expansion agent, the column includes two half-circular clamps and a top cover detachably connected to the upper end of the two clamps, the bottom end of the column is provided with a base slidingly connected with the clamps, the two sides of the base are provided with scale rods, support rods are provided in the clamps along the extension direction of the scale rods, one end of the support rod is connected with a sliding block slidingly connected with the scale rod, and a fixed rod is connected between the sliding block and the clamp; concrete and expansion agent are poured into the clamped clamps, the top cover is covered, after the concrete reaches a certain strength, the top cover is opened, the concrete expansion will push the clamping plate to slide the sliding block towards the scale disc through the support rod and the fixed rod, the fixed rod, the support rod and the clamping plate are triangularly arranged to make the detection device more stable, and finally the initial value of the sliding block on the scale rod is recorded, and the expansion of concrete at different time periods is obtained by reading the value at regular intervals.

[0004] However, the above detection device has the following problems: the shape of the entire device is not fixed during detection, and the top cover and the bottom cover need to be disassembled during the detection process. Since the bottom cover is arranged inside the base, it is very troublesome to disassemble the bottom cover. In addition, when mixing concrete and expansion agent for detection, they are directly placed in the cylindrical structure formed by the clamping plate. Since there are many expansion agents to be detected, a lot of time is spent on cleaning the concrete after the detection of one additive is completed, and then the detection work can be performed again. Therefore, the detection efficiency of the entire device is low. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model aims to provide a kind of concrete expansion and contraction detection instrument, which can continuously detect multiple times without cleaning the detection device during detection, thereby effectively improving the detection efficiency, and the entire instrument structure is stable and easy to disassemble.

[0006] The utility model solves the above technical problems through the following technical means:

[0007] The utility model provides a concrete expansion and contraction detector, including mounting seat, support structure and detection mechanism, support structure is installed on mounting seat for supporting detection mechanism, detection mechanism assembles on mounting seat for detecting the expansion situation of concrete,

[0008] The detection mechanism includes a loading member, a detection member, and a protective member. The loading member is radially slidably mounted on the mounting seat for loading expandable concrete. The protective member is disposed within the loading member and is configured as a film protective sleeve for protecting the loading member containing the concrete. The detection member is slidably assembled between the mounting seat and the loading member for detecting the expansion of the concrete after expansion.

[0009] Further, the loading member includes a first arc-shaped block and a second arc-shaped block. Both sides of the first arc-shaped block and the second arc-shaped block are formed with connecting plates. The connecting plates are provided with fixing members for fastening the first arc-shaped block and the second arc-shaped block.

[0010] Further, the fixing member includes a clamping block and a clamping pin. The clamping block is fixedly arranged on the first arc-shaped block or the second arc-shaped block. A strip-shaped hole is formed in the clamping block. A through groove is formed in the second arc-shaped block or the first arc-shaped block. The clamping block passes through the through groove, and the clamping pin passes through the strip-shaped hole.

[0011] Further, the film protective sleeve is configured in a cylindrical shape and is attached to the inner wall of the loading member.

[0012] Further, the detection member includes a transmission structure and a detection structure. The detection structure is mounted on the mounting seat. The transmission structure is assembled between the loading member and the detection structure. When the loading member is expanded by the concrete, the detection structure can be driven by the transmission structure for detection.

[0013] Further, the transmission structure is configured as a first transmission member and a second transmission member. The first transmission member and the second transmission member are symmetrically arranged on both sides of the loading member and are respectively connected with the detection structure.

[0014] Further, the detection structure includes a first detection member and a second detection member. The first detection member and the second detection member are slidably arranged on both sides of the mounting seat. The first transmission member is connected between the loading member and the first detection member. The second transmission member is connected between the loading member and the second detection member. The first detection member and the second detection member are driven synchronously by the first transmission member and the second transmission member for detection.

[0015] Further, the mounting base comprises a base and a fixing base, four around the fixing base are fixed with supporting legs, the supporting legs are fixedly installed on the base, the supporting structure is assembled on the base and is used for supporting the structure to work, the detection mechanism is assembled on the fixing base, the supporting structure corresponds to the detection mechanism and is used for supporting the concrete in the detection mechanism.

[0016] Further, the supporting structure comprises a power source, a bidirectional screw rod, sliding blocks and supporting pieces, the base of the mounting base is provided with an installation groove, the bidirectional screw rod is rotationally installed in the installation groove and penetrates through one end of the installation groove, the power source is fixedly connected with one end of the bidirectional screw rod and is used for driving the bidirectional screw rod to rotate, and the sliding blocks are respectively screwed on two ends of the bidirectional screw rod.

[0017] Further, the supporting pieces comprise first supporting rods, second supporting rods and a supporting base, one end of the first supporting rod is hingedly connected to the top of one sliding block, the other end is hingedly connected to the bottom of the supporting base, one end of the second supporting rod is hingedly connected to the top of the other sliding block, and the other end is hingedly connected to the bottom of the supporting base.

[0018] The application adopting the above scheme has the following beneficial effects:

[0019] 1. In the application, the film protection sleeve is arranged in the detection mechanism and is attached to the inner wall of the loading piece, the film protection sleeve is made of material with low tearing strength and thin thickness, so that the concrete does not contact the inner wall of the loading piece when being filled into the film protection sleeve, thereby avoiding the pollution of the inner wall of the loading piece, and only the film protection sleeve needs to be replaced during continuous testing, without cleaning the loading piece, so that the detection efficiency is improved.

[0020] 2. In the application, the first arc-shaped block and the second arc-shaped block of the loading piece are fixed by the fixing piece, so that the first arc-shaped block and the second arc-shaped block can be tightly fixed, and only need to be removed during disassembly, which is simple and convenient.

[0021] 3. In the application, the supporting structure is arranged at the bottom of the detection mechanism, so that the bottom of the loading piece can be closed and abuts against the bottom of the film protection sleeve during use, thereby being capable of bearing the weight during concrete filling; and the base of the supporting structure can be separated from the bottom of the concrete after the concrete expansion test is completed, thereby facilitating the removal of the concrete and replacing the seat body of the supporting structure polluted by the concrete, so as to avoid affecting the continuous testing. BRIEF DESCRIPTION OF DRAWINGS

[0022] The application can be further illustrated by the non-limiting embodiments shown in the drawings.

[0023] Figure 1is a structural schematic view of a concrete expansion and shrinkage detector in the embodiment of the present application;

[0024] Figure 2 is a sectional structural schematic view of a concrete expansion and shrinkage detector in the embodiment of the present application;

[0025] Figure 3 is Figure 2 is an enlarged structural schematic view of A in the middle;

[0026] Figure 4 is a partial split structural schematic view of a concrete expansion and shrinkage detector in the embodiment of the present application;

[0027] Figure 5 is a partial split structural schematic view of a concrete expansion and shrinkage detector in the embodiment of the present application;

[0028] Figure 6 is a fixing structural schematic view of a loading member in a concrete expansion and shrinkage detector in the embodiment of the present application;

[0029] Figure 7 is a structural schematic view of a supporting structure in a concrete expansion and shrinkage detector in the embodiment of the present application;

[0030] Main symbol element explanation:

[0031] 100, mounting seat; 11, base; 12, fixing seat; 121, supporting leg; 200, detection mechanism; 210, loading member; 211, first arc-shaped block; 212, second arc-shaped block; 213, connecting plate; 214, clamping block; 215, clamping pin; 220, first transmission member; 221, first hinged seat; 222, transmission rod; 223, second hinged seat; 230, first detection member; 231, sliding seat; 232, sliding rod; 240, protection member;

[0032] 300, supporting structure; 310, power source; 320, bidirectional screw rod; 330, sliding block; 331, coordination seat; 34, first supporting rod; 35, second supporting rod; 36, ear plate; 37, connecting seat; 38, seat body; 400, top cover. DETAILED DESCRIPTION

[0033] The advantages and effects of the present application can be understood by the content disclosed in the specification. It should be noted that the drawings provided in the following examples are only used for exemplary description, and the drawings are only schematic diagrams, not actual drawings, and should not be understood as a limitation of the present application. In order to better illustrate the embodiments of the present application, some components in the drawings are omitted, enlarged or reduced, and do not represent the actual size of the product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings can be omitted.

[0034] In the drawings of the embodiments of the present application, the same or similar reference numerals correspond to the same or similar components. In the description of the present application, it should be understood that if the terms "upper", "lower", "left", "right", "front", "back" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only used for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation. Therefore, the terms used to describe the positional relationship in the drawings are only used for exemplary description, and should not be understood as a limitation of the present application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances, and in the description of the present application, the terms "first", "second" and the like are only used for differentiation, and should not be understood as indicating or implying relative importance.

[0035] It should be noted that the drawings provided in the following examples only illustrate the basic concept of the present application in a schematic manner, and the drawings only show the components related to the present application, not the number, shape and size of the components during actual implementation. The actual implementation of each component can be randomly changed, and the component layout pattern can be more complex.

[0036] As shown in Figure 1 The present application discloses a concrete expansion and contraction detector, which comprises a mounting seat 100, a support structure 300 and a detection mechanism 200. The mounting seat 100 is placed flat on a workbench or the ground, and is used to provide a placement and installation base for the entire instrument. The support structure 300 is installed on the mounting seat 100, and is used to support the detection mechanism 200. The detection mechanism 200 is assembled on the mounting seat 100, and is used to detect the expansion of the concrete.

[0037] In some embodiments, as Figures 2-3As shown, the mounting base 100 comprises a base 11 and a fixed seat 12. The fixed seat 12 is fixed with a support leg 121 around, and the support leg 121 is fixed on the base 11 by bolts, so that the fixed seat 12 and the base 11 form a spacing. The support structure 300 is assembled on the base 11, and the support structure 300 works at the spacing. The detection mechanism 200 is assembled on the fixed seat 12, and the support structure 300 corresponds to the detection mechanism 200, so that the support structure 300 can support the concrete in the detection mechanism 200.

[0038] In the embodiment, the base 11 is flat, which can be stably placed on different platforms. In order to further improve the stability of the base 11 on different platforms, bolts can also be arranged on the base 11. In actual cases, a cylinder clamping structure or the like can also be selected.

[0039] In some embodiments, as shown in Figure 2 and Figure 7 The support structure 300 comprises a power source 310, a bidirectional screw rod 320, sliding blocks 330 and a support piece. The base 11 is provided with a mounting groove, the bidirectional screw rod 320 is rotatably arranged in the mounting groove and one end of the bidirectional screw rod 320 penetrates out of the mounting groove, the power source 310 is fixedly connected with one end of the bidirectional screw rod 320, and the power source 310 is used to drive the bidirectional screw rod 320 to rotate. The sliding blocks 330 are provided in two, and the two sliding blocks 330 are respectively screwed on the two ends of the bidirectional screw rod 320, so that when the power source 310 drives the bidirectional screw rod 320 to rotate, the two sliding blocks 330 can be driven to move close to or away from each other. The support piece is transmissionally arranged on the two sliding blocks 330, so that when the two sliding blocks 330 move away from or close to each other, the support piece can be lifted and lowered accordingly, and when the support piece is lifted to a certain height, the support piece can support the concrete in the detection mechanism 200.

[0040] In the embodiment, the power source 310 can be a servo motor, a speed reducer or the like.

[0041] In the embodiment, the sliding blocks 330 slide with the side walls of the mounting groove, so that the sliding blocks 330 can move along the bidirectional screw rod 320. In other embodiments, a guide rod can also be arranged in the mounting groove, and the two sliding blocks 330 slide out of the guide rod, so that the sliding blocks 330 can move along the bidirectional screw rod 320.

[0042] In the embodiment, as shown in Figure 3As shown, the support structure 300 includes a first support rod 34, a second support rod 35 and a support seat. One end of the first support rod 34 is hinged to the top of one sliding block 330 through a matching seat 331, and the other end is hinged to the bottom of the support seat. One end of the second support rod 35 is hinged to the top of the other sliding block 330 through the matching seat 331, and the other end is hinged to the bottom of the support seat. When the two sliding blocks 330 move closer to or away from each other, the support seat can move up or down under the action of the first support rod 34 and the second support rod 35. During the upward movement, the support seat can gradually contact the fixed seat 12, so that the upper part of the support seat is flush with the surface of the fixed seat 12, and the concrete in the detection mechanism 200 is supported, which is beneficial to the initial filling of the concrete. During the downward movement, the support seat is separated from the fixed seat 12 and the concrete, which is beneficial to the removal of the concrete after the expansion test.

[0043] In the embodiment, the support seat includes a seat body 38 and a connecting seat 37. The top of the connecting seat 37 is fixed with a bolt for detachable threaded connection with the seat body 38; and the bottom of the connecting seat 37 is fixed with two ear plates 36 for hinging with the first support rod 34 and the second support rod 35. On the one hand, the seat body 38 can be replaced on the connecting seat 37, so that the seat body 38 contaminated by the concrete can be replaced when continuous testing is required, which is simple and practical.

[0044] In actual situations, the support structure 300 can be provided as a telescopic device, such as an electric telescopic rod, the output end of which is provided with the support seat, or as a pneumatic cylinder, the output shaft of which is provided with the support seat. A suitable telescopic device can also be selected to cooperate with the support seat.

[0045] In some embodiments, as shown in Figures 1-2 and Figures 4-5 The detection mechanism 200 includes a loading member 210, a detection member and a protection member 240. The loading member 210 is radially slidably mounted on the fixed seat 12. On the one hand, the loading member 210 can be filled with concrete, and on the other hand, the loading member 210 can be moved during the expansion of the concrete after the addition of the expanding agent, so as to be detected. The detection member is slidably assembled between the mounting seat 100 and the loading member 210, so that the detection member can detect the expansion of the concrete after the expansion of the concrete. The protection member 240 is replaceably arranged in the loading member 210, and is used to protect the loading member 210 filled with the concrete, so as to avoid the loading member 210 being contaminated by the concrete and affecting the continuous testing.

[0046] In the embodiment, the loading member 210 comprises a first arc-shaped block 211 and a second arc-shaped block 212. The first arc-shaped block 211 and the second arc-shaped block 212 can be folded into a cylindrical shape. Both sides of the first arc-shaped block 211 and the second arc-shaped block 212 are formed with a connecting plate 213. The connecting plate 213 is provided with a fixing member. The first arc-shaped block 211 and the second arc-shaped block 212 are fastened by the fixing member, so that the concrete can be loaded into the first arc-shaped block 211 and the second arc-shaped block 212. When the concrete expands, the first arc-shaped block 211 and the second arc-shaped block 212 can be separated.

[0047] In the embodiment, the fixing seat 12 has a through hole. When the first arc-shaped block 211 and the second arc-shaped block 212 are folded, the through hole is located on the same vertical axis. The supporting seat is located in the through hole in correspondence with the position of the through hole. When the first arc-shaped block 211 and the second arc-shaped block 212 are folded, the concrete can be loaded into the space formed by the first arc-shaped block 211 and the second arc-shaped block 212.

[0048] In the embodiment, to avoid foreign matters entering the concrete during the test, a top cover 400 can be arranged on the top of the first arc-shaped block 211 and the second arc-shaped block 212.

[0049] In one embodiment, as shown in Figure 6 The two connecting plates 213 are provided with a fixing member for fixing the two ends of the first arc-shaped block 211 and the second arc-shaped block 212. The fixing member comprises a clamping block 214 and a clamping pin 215. The clamping block 214 is fixedly arranged on the first arc-shaped block 211. The clamping block 214 is provided with a strip-shaped hole. The second arc-shaped block 212 is provided with a through slot. The clamping block 214 passes through the through slot. The clamping pin 215 passes through the strip-shaped hole, so that the first arc-shaped block 211 and the second arc-shaped block 212 are fastened.

[0050] In the embodiment, the clamping block 214 can be one or multiple. The multiple clamping blocks 214 are provided with strip-shaped holes. The clamping pin 215 passes through the strip-shaped holes, so that the first arc-shaped block 211 and the second arc-shaped block 212 are stable. After the concrete reaches a certain strength, the clamping pin 215 can be removed, and the concrete expansion test can be performed.

[0051] In another embodiment, the fixing member can be a bolt and a nut. When the fixing member is a bolt and a nut, multiple through holes are arranged on the two connecting plates 213. The bolt passes through the through holes and cooperates with the nut to fasten the first arc-shaped block 211 and the second arc-shaped block 212. When the concrete is loaded, the concrete can not enter the gap between the two connecting plates 213. The structure is simple and practical. After the concrete reaches a certain strength, the bolt can be removed, and the concrete expansion test can be performed.

[0052] In the embodiment, the protector 240 is arranged as a film protective sleeve, which is arranged in a cylindrical shape and is in conformity with the shape of the first arc-shaped block 211 and the second arc-shaped block 212 after being folded, and has a height dimension greater than that of the loading member 210, so that the film protective sleeve can be in conformity with the inner wall of the loading member 210 when being placed in the loading member 210, thereby preventing the concrete from contacting the inner wall of the first arc-shaped block 211 and the second arc-shaped block 212 when being filled into the film protective sleeve, and avoiding the pollution of the inner wall of the first arc-shaped block 211 and the second arc-shaped block 212, so that only the film protective sleeve needs to be replaced during continuous testing, and the first arc-shaped block 211 and the second arc-shaped block 212 do not need to be cleaned.

[0053] In the embodiment, the material of the film protective sleeve is OPP matte, PET, PE or the like with a relatively low tear strength, and the thickness is less than or equal to 0.05 mm, so that the film protective sleeve can not only bear the filled concrete, but also be torn in time during the expansion of the concrete, without affecting the detection of the expansion condition of the concrete. Of course, a film material with a large enough elastic coefficient can also be selected, so that the film protective sleeve can be directly expanded when the concrete expands, and the detection of the expansion condition of the concrete will not be affected. The appropriate material can also be selected according to the actual situation.

[0054] In some embodiments, as shown in Figures 1-2 The detection member includes a transmission structure and a detection structure, the detection structure is mounted on the fixing seat 12, and the transmission structure is assembled between the loading member 210 and the detection structure, so that the detection structure can be driven to detect when the loading member 210 is expanded and separated by the concrete.

[0055] In the embodiment, the transmission structure is arranged as a first transmission member 220 and a second transmission member, the first transmission member 220 and the second transmission member are symmetrically arranged on both sides of the loading member 210 and are respectively connected with the detection structure, so that the detection structure can detect the expansion condition of the concrete through the first transmission member 220 and the second transmission member when the concrete expands in the loading member 210.

[0056] In the embodiment, as shown in Figure 2As shown, the first transmission member 220 and the second transmission member are of the same structure, and the first transmission member 220 is taken as an example for description as follows: the first transmission member 220 comprises a first hinged seat 221, a second hinged seat 223 and a transmission rod 222, the first hinged seat 221 is fixedly installed on the outer side wall of the first arc-shaped block 211 by bolts, the second hinged seat 223 is fixedly installed on the detection structure by bolts, one end of the transmission rod 222 is hinged on the first hinged seat 221, and the other end is hinged on the second hinged seat 223, so that when the concrete expands, the movement of the first arc-shaped block 211 and the second arc-shaped block 212 can drive the movement of the transmission rod 222, thereby enabling the detection structure to be passively detected, and further enabling the expansion of the concrete to be detected.

[0057] In the embodiment, the first transmission member 220 and the second transmission member not only enable the detection structure to be passively detected, but also play a supporting role, and can support the first arc-shaped block 211 and the second arc-shaped block 212 to a certain extent. In actual situations, the first transmission member 220 and the second transmission member can also be directly provided as the transmission rod 222.

[0058] In some embodiments, as shown in the drawings, Figures 2-4 As shown, the detection structure comprises a first detection member 230 and a second detection member, the first detection member 230 and the second detection member are slidingly arranged on both sides of the fixed seat 12, the first transmission member 220 is connected between the first arc-shaped block 211 and the first detection member 230, the second transmission member is connected between the second arc-shaped block 212 and the second detection member, so that when the concrete expands, the first detection member 230 and the second detection member can be synchronously detected by the first transmission member 220 and the second transmission member.

[0059] In the embodiment, the first detection member 230 and the second detection member are of the same structure, and the first detection member 230 is taken as an example for description as follows: the first detection member 230 comprises a sliding seat 231 and a sliding rod 232, the fixed seat 12 is symmetrically provided with a receiving groove, the sliding rod 232 is symmetrically arranged on both sides of the sliding seat 231, and the free end of the sliding rod 232 is located in the receiving groove, so that when the first arc-shaped block 211 is driven to move by the expansion of the concrete, the first transmission member 220 and the second transmission member can be driven to move, thereby driving the sliding seat 231 to move, and further driving the sliding rod 232 to slide out of the receiving groove.

[0060] In the embodiment, the sliding rod 232 is provided with a scale line, so that when the sliding rod 232 slides out, the expansion of the concrete can be read according to the scale line.

[0061] In the embodiment, the sliding seat 231 is equal in length to the base 11 when it is attached to the fixed seat 12, so that the overall appearance of the device is more regular, facilitating storage and carrying.

[0062] In other embodiments, the first detection member 230 and the second detection member can also be pressure sensors fixedly installed on both sides of the fixed seat 12, and the first transmission member 220 and the second transmission member are connected with the two pressure sensors respectively, so that when the first arc-shaped block 211 and the second arc-shaped block 212 are driven to move by the expansion of the concrete, the moving pressure can be transmitted to the pressure sensors, and the pressure condition of the concrete expansion can be known by reading the values on the sensors. In actual situations, the first detection member 230 and the second detection member can also be laser or displacement sensors, etc., and appropriate instruments can also be selected according to actual situations.

[0063] If contraction detection is needed, the first arc-shaped block 211 and the second arc-shaped block 212 are in an open state instead of a closed state, at this time, the film protective sleeve is arranged on the open first arc-shaped block 211 and the second arc-shaped block 212, and the sliding rod 232 is located outside the accommodating groove, so that when the concrete contracts, the first arc-shaped block 211 and the second arc-shaped block 212 can be driven to move close to each other by the contraction of the film protective sleeve, thereby driving the sliding rod 232 to slide into the accommodating groove, so as to realize the concrete contraction detection.

[0064] In this case, the film protective sleeve is a film material with a large enough elastic coefficient and is not easy to break. Appropriate materials can also be selected according to actual situations.

[0065] In this case, the top of the film protective sleeve can be tensioned with the first arc-shaped block 211 and the second arc-shaped block 212 by means of flanging, or the flange can be fixed with the first arc-shaped block 211 and the second arc-shaped block 212 by means of gluing, or it can be fastened by appropriate means.

[0066] The concrete expansion and contraction detection instrument provided by the present application is described in detail above. The description of the specific embodiments is only used to help understand the method and its core idea of the present application. It should be pointed out that for ordinary skilled persons in the art, without departing from the principles of the present application, some improvements and modifications can be made to the present application, and these improvements and modifications also fall within the protection scope of the present application.

[0067] It should be pointed out that the phrases "one embodiment", "embodiment", "some optional embodiments", "exemplary embodiment", "some embodiments" and the like in the specification mean that the described embodiments can include a specific feature, structure or property, but not necessarily every embodiment includes the specific feature, structure or property. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when a specific feature, structure or property is described in combination with an embodiment, it is within the knowledge of those skilled in the art to realize such feature, structure or property in combination with other embodiments described explicitly or implicitly.

[0068] The above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the technical solutions of the present application, and all should be covered in the scope of the claims of the present application. The technical, shape, and structure parts not described in detail in the present application are well-known technologies.

Claims

1. A concrete expansion and contraction detector characterized by: The utility model provides a kind of concrete expansion detection device, including mounting seat (100), support structure (300) and detection mechanism (200), the support structure (300) is installed on mounting seat (100), for supporting detection mechanism (200);The detection mechanism (200) is assembled on mounting seat (100), for detecting the expansion condition of concrete; The detection mechanism (200) includes loading piece (210), detection piece and protection piece (240), the loading piece (210) is slidably installed on mounting seat (100), for loading inflatable concrete;The protection piece (240) is replaceably arranged in loading piece (210), and is arranged as film protective sleeve, for protecting the loading piece (210) loaded with concrete;The detection piece is slidably assembled between mounting seat (100) and loading piece (210), for detecting the expansion condition of concrete after expansion.

2. The concrete expansion and contraction detector according to claim 1, characterized in that: The loading piece (210) includes first arc block (211) and second arc block (212), both sides of the first arc block (211) and the second arc block (212) are formed with connecting plate (213), the connecting plate (213) is provided with fixing piece, for fastening the first arc block (211) and the second arc block (212).

3. The concrete expansion and contraction detector according to claim 2, characterized in that: The fixing piece includes clamping block (214) and clamping pin (215), the clamping block (214) is fixedly arranged on the first arc block (211) or the second arc block (212), strip-shaped hole is formed in the clamping block (214), through slot is formed in the second arc block (212) or the first arc block (211), the clamping block (214) passes through the through slot, and the clamping pin (215) passes through the strip-shaped hole.

4. The concrete expansion and contraction detector according to claim 1, characterized in that: The film protective sleeve is set as cylinder, and is attached to the inner wall of loading piece (210).

5. The concrete expansion and contraction detector according to any one of claims 1 to 4, characterized in that: The detection piece includes transmission structure and detection structure, the detection structure is installed on mounting seat (100), and the transmission structure is assembled between loading piece (210) and detection structure, so that the detection structure can be driven to detect when loading piece (210) is expanded by concrete.

6. The concrete expansion and contraction detector according to claim 5, characterized in that: The transmission structure is set as first transmission member (220) and second transmission member, the first transmission member (220) and the second transmission member are symmetrically arranged on both sides of loading piece (210) and are connected with detection structure respectively.

7. The concrete expansion and contraction detector according to claim 6, characterized in that: The detection structure includes first detection member (230) and second detection member, the first detection member (230) and the second detection member are slidably arranged on both sides of mounting seat (100), the first transmission member (220) is connected between loading piece (210) and the first detection member (230), and the second transmission member is connected between loading piece (210) and the second detection member, so that the first detection member (230) and the second detection member are synchronously detected by the first transmission member (220) and the second transmission member.

8. The concrete expansion and contraction detector according to claim 1, characterized in that: The mounting base (100) comprises a base (11) and a fixing base (12), four around the fixing base (12) are fixed with supporting legs (121), the supporting legs (121) are fixedly installed on the base (11), the supporting structure (300) is assembled on the base (11), and the supporting structure (300) is used for supporting the working of the supporting structure (300), the detection mechanism (200) is assembled on the fixing base (12), and the supporting structure (300) corresponds to the detection mechanism (200) and is used for supporting the concrete in the detection mechanism (200).

9. The concrete expansion and contraction detector according to claim 1, characterized in that: The supporting structure (300) comprises a power source (310), a bidirectional screw rod (320), sliding blocks (330) and supporting pieces, the bottom of the mounting base (100) is provided with a mounting groove, the bidirectional screw rod (320) is rotatably installed in the mounting groove and penetrates out of the mounting groove at one end, the power source (310) is fixedly connected with one end of the bidirectional screw rod (320) and is used for driving the bidirectional screw rod (320) to rotate, and the sliding blocks (330) are respectively screwed on the two ends of the bidirectional screw rod (320).

10. The concrete expansion and contraction detector according to claim 9, characterized in that: The supporting pieces comprise first supporting rods (34), second supporting rods (35) and a supporting base, one end of the first supporting rod (34) is hingedly connected to the top of one sliding block (330), the other end is hingedly connected to the bottom of the supporting base, one end of the second supporting rod (35) is hingedly connected to the top of the other sliding block (330), and the other end is hingedly connected to the bottom of the supporting base.

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