Civil engineering structure crack detection device

Abstract

The utility model relates to civil structure detection equipment technical field, and disclose a civil structure crack detection equipment, include: base, the top of base is provided with controller, the top of base is provided with air pump, the air outlet end intercommunication of air pump has the connecting pipe, the other end intercommunication of connecting pipe has the connector, detection mechanism, detection mechanism is used for cooperation air pump to carry out the detection to the crack, detection mechanism includes two connecting shells, through setting detection mechanism, can utilize the mode of gas injection to the inside of crack before detection carries out the cleaning of dust impurity, carries out the pneumatic cleaning of dust impurity in the crack, reduces the situation that dust impurity blockage causes the inside of crack through -penetrating place ventilation is not smooth, so that the subsequent injected gas can carry out good ventilation, avoid the situation that dust impurity blockage influences the detection result, and the cleaned dust impurity can collect in the inside of collection cavity and can not cause the pollution of environment.

Description

Technical Field

[0001] This utility model relates to the technical field of civil structure testing equipment, specifically a civil structure crack detection device. Background Technology

[0002] Timber structures typically consist of columns, beams, piles, and other structural elements in civil engineering buildings, and are generally constructed using materials such as rammed earth and timber. Because the materials used in civil engineering structures differ from those in concrete and steel structures, surface cracking is unavoidable after prolonged use.

[0003] A search revealed a Chinese patent (publication number: CN222258317U) that discloses a device for detecting cracks in civil structures. This patent uses airflow to detect cracks on the surface of civil structures. Air is compressed by an air compressor and introduced into any crack (hole) on the structure's surface. Airtight sampling ports are placed in other cracks (holes). If a through-crack structure has formed, the air pressure detection component can detect changes in air pressure through the airtight sampling ports, thus enabling the detection of through-cracks and facilitating subsequent maintenance.

[0004] However, in actual use, dust and impurities accumulate inside cracks after they form, and these dust and impurities can block the connection between cracks and other cracks. Direct ventilation will affect the ventilation effect due to the accumulation of dust and impurities. Therefore, those skilled in the art have proposed a civil structure crack detection device to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this invention is to provide a device for detecting cracks in civil structures, which solves the problem in the prior art where dust and impurities accumulated in the cracks can affect subsequent ventilation for detection.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] A civil structure crack detection device, comprising:

[0008] A base, a controller is provided on the top of the base, an air pump is provided on the top of the base, the air outlet of the air pump is connected to a connecting pipe, and the other end of the connecting pipe is connected to a connector.

[0009] The testing mechanism is used in conjunction with an air pump to detect cracks;

[0010] The detection mechanism includes two connecting shells, with a sealing plate fixedly connected to the surface of each connecting shell. A pressure sensor is embedded inside each connecting shell, and an auxiliary component is provided on the surface of one of the connecting shells.

[0011] Preferably, the auxiliary component includes a mounting head fixedly connected to one side of the connecting shell, the other end of the mounting head being threadedly connected to the inner wall of the connecting head, the other end of the mounting head communicating with a nozzle, and the other end of the nozzle penetrating to the inner side of the connecting shell.

[0012] Preferably, the connecting shell is rotatably connected to a rotating shell, the interior of the rotating shell forms a collection cavity, a filter screen is embedded in the surface of the rotating shell, a connecting groove is provided on the side of the rotating shell away from the sealing plate, and the inner wall of the connecting groove is provided with internal threads.

[0013] Preferably, the surface of the connecting shell is provided with uniformly distributed through grooves, and the inner side of the rotating shell is provided with a connecting cavity that matches the through grooves and communicates with the collecting cavity.

[0014] Preferably, a sealing block is threaded onto the inner wall of the connecting groove, and the end of the sealing block away from the sealing plate extends through the connecting groove and is fixedly connected to a rotating ring.

[0015] Preferably, the rotating shell on the side near the sealing plate has two limiting holes, and the included angle between the two limiting holes is °.

[0016] Preferably, a limiting rod is provided on the surface of the rotating shell, one end of the limiting rod penetrates the rotating shell and extends into the interior of the adjacent limiting hole, a spring is fixedly connected to the surface of the limiting rod, and the other end of the spring is fixedly connected to the surface of the rotating shell.

[0017] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0018] 1. By setting up a detection mechanism, dust and impurities inside the crack can be cleaned by air injection before detection. The dust and impurities inside the crack are cleaned pneumatically, reducing the possibility of poor ventilation caused by dust and impurities clogging the crack. This allows the subsequently injected gas to have good ventilation, avoiding the possibility of dust and impurities clogging the test results. In addition, the cleaned dust and impurities can be collected inside the collection chamber without causing environmental pollution.

[0019] 2. By setting up a detection mechanism, air can be injected into the crack and the position of the connecting shell can be maintained for a period of time to observe whether the air pressure drops. If the air pressure drops, it indicates that there are other penetration points in the crack. Then, another connecting shell is used to cover the other cracks, and air is injected again to observe whether the air pressure changes through the air pressure sensor inside the other installed connecting shell. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram showing the separation of the testing mechanism and the connector of this utility model;

[0022] Figure 3 This is a cross-sectional schematic diagram of the testing mechanism of this utility model;

[0023] Figure 4 This is a schematic diagram showing the distribution of the limiting rod, spring, and limiting hole of this utility model.

[0024] The components include: 1. Base; 2. Air pump; 201. Connecting pipe; 202. Connector; 3. Detection mechanism; 301. Connecting shell; 302. Sealing plate; 303. Air pressure sensor; 31. Auxiliary components; 3101. Mounting head; 3102. Nozzle; 3103. Through groove; 3104. Rotating shell; 3105. Sealing block; 3106. Rotating ring; 3107. Filter screen; 3108. Limiting hole; 3109. Limiting rod; 3110. Spring; 4. Controller. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-4 A civil structure crack detection device, comprising:

[0027] The base 1 has a controller 4 on its top and an air pump 2 on its top. The air outlet of the air pump 2 is connected to a connecting pipe 201, and the other end of the connecting pipe 201 is connected to a connector 202.

[0028] Inspection unit 3 is used in conjunction with air pump 2 to inspect cracks;

[0029] The testing mechanism 3 includes two connecting shells 301. A sealing plate 302 is fixedly connected to the surface of the connecting shell 301. A pressure sensor 303 is embedded inside the connecting shell 301. An auxiliary component 31 is provided on the surface of one of the connecting shells 301.

[0030] By activating the air pump 2, outside air can be injected into the interior of the connecting pipe 201 and discharged through the connector 202;

[0031] The gas pressure detected by the pressure sensor 303 can be transmitted to the controller 4. The controller 4 is a relatively mature component in existing technology applications, and the surface of the controller 4 is provided with a display screen, which can limit the signal detected by the pressure sensor 303 through the display screen.

[0032] Please see Figure 1-4 The auxiliary component 31 includes a mounting head 3101 fixedly connected to one side of the connecting shell 301. The other end of the mounting head 3101 is threadedly connected to the inner wall of the connecting head 202. The other end of the mounting head 3101 is connected to a nozzle 3102. The other end of the nozzle 3102 extends through to the inner side of the connecting shell 301.

[0033] The connecting shell 301 is rotatably connected to the rotating shell 3104. The interior of the rotating shell 3104 forms a collection cavity. A filter screen 3107 is embedded in the surface of the rotating shell 3104. A connecting groove is provided on the side of the rotating shell 3104 away from the sealing plate 302. The inner wall of the connecting groove is provided with internal threads.

[0034] The surface of the connecting shell 301 is provided with uniformly distributed through grooves 3103, and the inner side of the rotating shell 3104 is provided with a connecting cavity that matches the through grooves 3103 and is connected to the collecting cavity.

[0035] The connecting shell 301, equipped with the mounting head 3101, can be threadedly connected to the connecting head 202. Gas discharged through the connecting pipe 201 can then be discharged through the nozzle 3102. During testing, the connecting shell 301 blocks the crack to be tested, and the air pump 2 injects gas into the crack through the nozzle 3102. The nozzle 3102 concentrates the airflow into the crack, while the through groove 3103 and the connecting cavity allow the injected airflow to flow back into the connecting shell 301, carrying away dust from the crack. The dust is then trapped inside the collection chamber by the filter screen 3107. Operators can clean the collected dust by turning the rotating ring 3106 to separate the sealing block 3105 from the connecting groove. Cleaning the crack allows for better subsequent testing, preventing dust accumulation inside the crack from affecting subsequent inspections.

[0036] Please see Figure 1-4 A sealing block 3105 is threadedly connected to the inner wall of the connecting groove. The end of the sealing block 3105 away from the sealing plate 302 passes through the connecting groove and is fixedly connected to a rotating ring 3106.

[0037] The rotating housing 3104 on the side near the sealing plate 302 has two limiting holes 3108, and the included angle between the two limiting holes 3108 is 60°.

[0038] A limiting rod 3109 is provided on the surface of the rotating shell 3104. One end of the limiting rod 3109 passes through the rotating shell 3104 and extends into the interior of the adjacent limiting hole 3108. A spring 3110 is fixedly connected to the surface of the limiting rod 3109, and the other end of the spring 3110 is fixedly connected to the surface of the rotating shell 3104.

[0039] By pulling the limiting rod 3109 to separate it from the limiting hole 3108, the spring 3110 is compressed during this process. After separation, the limiting position of the rotating shell 3104 is released. After rotation, aligning the limiting rod 3109 with another limiting hole 3108 and releasing the limiting rod 3109 will cause it to reset under the action of the spring 3110, thus allowing it to be inserted into the interior of the limiting rod 3109 to limit the position of the rotating shell 3104. At this time, the connecting cavity and the through groove 3103 are misaligned, causing the gas injected into the connecting shell 301 to be unable to escape normally and instead injected into the crack. As gas is injected into the crack, the air pressure inside the connecting shell 301 gradually increases. When the air pressure reaches the preset value of the air pressure sensor 303, it can transmit a signal to the controller 4. The controller 4 can then transmit the signal to the air pump 2 and shut it off. The position of the connecting shell 301 is maintained for a period of time to observe whether the air pressure drops. If the air pressure drops, it indicates that there are other penetration points in the crack. Then, another connecting shell 301 is used to block the other cracks, and air is injected again to observe whether the air pressure changes through the air pressure sensor 303 inside the other installed connecting shell 301.

[0040] Working principle: During testing, the connecting shell 301 covers the crack to be tested, and air is injected into the crack through the nozzle 3102 by the air pump 2. The nozzle 3102 is designed to concentrate the airflow into the crack, while the through groove 3103 and the connecting cavity allow the airflow injected into the crack to flow back into the connecting shell 301, carrying away dust from the crack. The dust is then trapped inside the collection cavity by the filter screen 3107. The operator can clean the dust collected inside the collection cavity by turning the rotating ring 3106 to separate the sealing block 3105 from the connecting groove. The cleaned crack can be better tested later, preventing dust accumulation inside the crack from affecting subsequent testing. By pulling the limiting rod 3109 to separate it from the limiting hole 3108, the spring 3110 is compressed. After separation, the limiting position of the rotating shell 3104 is released, and after rotation... Aligning the limiting rod 3109 with another limiting hole 3108 and releasing the limiting rod 3109 will cause it to reset under the action of the spring 3110, thereby inserting it into the interior of the limiting rod 3109 to limit the position of the rotating shell 3104. At this time, the connecting cavity and the through groove 3103 are misaligned, so that the gas injected into the connecting shell 301 cannot be discharged normally and can only be injected into the crack. As the gas is injected into the crack, the air pressure inside the connecting shell 301 can be gradually increased. When the air pressure reaches the preset value of the air pressure sensor 303, it can transmit a signal to the controller 4. The controller 4 can then transmit a signal to the air pump 2 and turn off the air pump 2. Keep the position of the connecting shell 301 for a period of time and observe whether the air pressure drops. If the air pressure drops, it means that there are other penetration points in the crack. Then, use another connecting shell 301 to block other cracks and re-inject air to observe whether the air pressure changes through the air pressure sensor 303 inside the other installed connecting shell 301.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for detecting cracks in civil structures, characterized in that, include: A base (1) is provided with a controller (4) on the top of the base (1) and an air pump (2) on the top of the base (1). The air outlet of the air pump (2) is connected to a connecting pipe (201), and the other end of the connecting pipe (201) is connected to a connector (202). The detection mechanism (3) is used in conjunction with the air pump (2) to detect cracks; The detection mechanism (3) includes two connecting shells (301), a sealing plate (302) is fixedly connected to the surface of the connecting shell (301), a pressure sensor (303) is embedded inside the connecting shell (301), and an auxiliary component (31) is provided on the surface of one of the connecting shells (301).

2. The civil structure crack detection device according to claim 1, characterized in that: The auxiliary component (31) includes a mounting head (3101) fixedly connected to one side of the connecting shell (301). The other end of the mounting head (3101) is threadedly connected to the inner wall of the connecting head (202). The other end of the mounting head (3101) is connected to a nozzle (3102). The other end of the nozzle (3102) extends through to the inner side of the connecting shell (301).

3. The civil structure crack detection device according to claim 2, characterized in that: The connecting shell (301) is rotatably connected to a rotating shell (3104). The interior of the rotating shell (3104) forms a collection cavity. A filter screen (3107) is embedded in the surface of the rotating shell (3104). A connecting groove is provided on the side of the rotating shell (3104) away from the sealing plate (302). The inner wall of the connecting groove is provided with an internal thread.

4. The civil structure crack detection device according to claim 3, characterized in that: The surface of the connecting shell (301) is provided with uniformly distributed through grooves (3103), and the inner side of the rotating shell (3104) is provided with a connecting cavity that matches the through grooves (3103) and is connected to the collecting cavity.

5. A civil structure crack detection device according to claim 4, characterized in that: A sealing block (3105) is threaded onto the inner wall of the connecting groove. The end of the sealing block (3105) away from the sealing plate (302) extends through the connecting groove and is fixedly connected to a rotating ring (3106).

6. The civil structure crack detection device according to claim 3, characterized in that: The rotating shell (3104) on the side near the sealing plate (302) has two limiting holes (3108), and the included angle between the two limiting holes (3108) is 60°.

7. A civil structure crack detection device according to claim 6, characterized in that: The surface of the rotating shell (3104) is provided with a limiting rod (3109). One end of the limiting rod (3109) passes through the rotating shell (3104) and extends into the interior of the adjacent limiting hole (3108). A spring (3110) is fixedly connected to the surface of the limiting rod (3109), and the other end of the spring (3110) is fixedly connected to the surface of the rotating shell (3104).

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