Porous grouting monitoring device

Abstract

The utility model discloses a duct grouting monitoring device, which comprises a heat-conducting property detection terminal arranged in a grouting duct and a controller arranged outside, the heat-conducting property detection terminal is electrically connected with the controller, the heat-conducting property detection terminal comprises a base and a sensor group arranged on the base, a fastening nail is arranged on the base in a springing manner, and the sensor group is electrically connected with the controller. The base is further provided with a knocking assembly used for knocking the fastening nails. When the heat-conducting property detection terminal and a grouting duct are installed, the base can be attached to the inner wall of the duct, and then the fastening nail is automatically knocked into the inner wall of the duct through the knocking assembly, so that the heat-conducting property detection terminal is fixedly installed. Compared with the prior art, the duct grouting monitoring device has the advantages that automatic installation in a duct can be achieved through matching of the knocking assembly and the fastening nail, so that the installation difficulty of the monitoring device is greatly reduced, and duct grouting operation is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of grouting monitoring, in particular to a duct grouting monitoring device. Background Art

[0002] With the continuous development of modern construction technology, prestressed concrete structures have been widely used in engineering fields such as bridges, buildings, and roads. As a key link in the construction of prestressed concrete structures, hole grouting technology is of great significance for ensuring the overall performance and safety of the structure.

[0003] The core function of hole grouting technology is to press cement slurry into the hole through a specific grouting device, fill the gap between the prestressed tendons and the hole, and make the prestressed tendons and concrete firmly bonded as a whole. This process can not only effectively improve the bearing capacity and durability of the structure, but also reduce the risk of corrosion of the prestressed tendons, thereby extending the service life of the structure.

[0004] At present, a Chinese patent with the announcement number CN206074493U discloses a device for monitoring the density of grouting in a grouting channel, including two sets of thermal conductivity detection terminals arranged in the grouting channel and a controller arranged outside, and the controller is electrically connected to the thermal conductivity detection terminal. When in use, the thermal conductivity detection terminal monitors the density of grouting by monitoring the change of the thermal conductivity coefficient of the medium. However, the thermal conductivity detection terminal needs to be fixed on the top wall of the inner cavity of the grouting channel for monitoring, and the narrow environment of the channel is not convenient for the fixed installation of the monitoring terminal, which brings inconvenience to the grouting operation of the channel. Utility Model Content

[0005] The utility model aims to overcome the deficiencies of the prior art and provide a duct grouting monitoring device.

[0006] The purpose of this utility model is achieved through the following technical solutions:

[0007] A channel grouting monitoring device includes a thermal conductivity detection terminal arranged in a grouting channel and a controller arranged outside, wherein the thermal conductivity detection terminal is electrically connected to the controller, and the thermal conductivity terminal includes a base and a sensor group arranged on the base, a fastening nail is elastically arranged on the base, and a knocking component for knocking the fastening nail is also arranged on the base.

[0008] The fastening nail and the base are elastically movable via a spring.

[0009] The knocking assembly includes a knocking block that is arranged to be elastic, and the knocking block is opposite to the fastening nail. The knocking assembly also includes an electromagnet, and the knocking block is adapted to be able to be absorbed or released by the electromagnet to bounce.

[0010] The knocking assembly includes a spring-set knocking rod, which is opposite to the fastening nail, and a toothed structure is provided on the side wall of the knocking rod. The knocking assembly also includes a driving wheel driven to rotate by a driving member, the driving wheel is a cam, and a tooth portion capable of meshing with the toothed structure is formed on the distal end of the driving wheel.

[0011] A blind hole is provided on the fitting surface between the base and the grouting channel, the fastening nail is elastically adapted in the blind hole, and the knocking assembly is arranged at the end surface of the blind hole.

[0012] The base is provided with a connecting hole through which the fastening nail is elastically adapted to fit. An installation cover opposite to the connecting hole is provided on the end surface of the base away from the inner wall of the grouting channel, and the knocking assembly is arranged in the installation cover.

[0013] The fastening nails and the knocking components are arranged in multiple groups on the base.

[0014] A cavity is constructed in the fastening nail, a flow channel connected to the cavity is opened on the side wall of the fastening nail, the cavity has an opening connected to the struck surface of the fastening nail, and a jet component for injecting glue between the fastening nail and the striking assembly is also provided on the base.

[0015] The beneficial effect of the utility model is that when the thermal conductivity detection terminal is installed with the grouting channel, the base can be fitted to the inner wall of the channel, and then the fastening nails can be automatically knocked into the inner wall of the channel by the knocking component, so as to achieve the fixed installation of the thermal conductivity detection terminal. Compared with the prior art, the channel grouting monitoring device of the utility model can realize automatic installation in the channel through the cooperation of the knocking component and the fastening nails, thereby greatly reducing the installation difficulty of the monitoring device and making the channel grouting operation more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an embodiment;

[0017] Figure 2 It is a structural diagram of the knocking block;

[0018] Figure 3 A schematic diagram of the structure of the striking rod.

[0019] Figure numerals: 1. Thermal conductivity detection terminal; 2. Base; 3. Sensor group; 4. Fastening nail; 5. Knocking assembly; 6. Knocking block; 7. Electromagnet; 8. Knocking rod; 9. Tooth structure; 10. Driving wheel; 11. Tooth portion; 12. Blind hole; 13. Connecting hole; 14. Mounting cover; 15. Cavity; 16. Flow channel; 17. Jet part. DETAILED DESCRIPTION

[0020] The following will be combined with the embodiments to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0021] like Figure 1 As shown, a hole grouting monitoring device includes a thermal conductivity detection terminal 1 arranged in the grouting hole and a controller arranged outside. For example, two thermal conductivity detection terminals 1 can be arranged on the top wall of the inner cavity at both ends of the grouting hole, and the two thermal conductivity detection terminals 1 can be electrically connected to the external controller through a cable. The Chinese patent with announcement number CN206074493U discloses the main structure and monitoring principle of the thermal conductivity detection terminal 1 and the controller, which is incorporated into this disclosure by reference.

[0022] In order to realize the convenient fixed installation of the thermal conductivity detection terminal 1 and the top wall of the duct, in the present disclosure, the thermal conductivity detection terminal 1 specifically includes a base 2 and a sensor group 3 arranged on the base 2. Among them, the sensor group 3 can be, for example, a heating unit and a temperature sensor, and through the cooperation of the two, the change of the thermal conductivity of the medium can be monitored, thereby realizing the monitoring of the grouting density. In detail, a fastening nail 4 is elastically arranged on the base 2, and a knocking component 5 for knocking the fastening nail 4 is also arranged on the base 2. It can be understood that the fastening nail 4 can be automatically nailed into the duct relative to the top wall through the knocking component 5, thereby reducing the difficulty of installing the monitoring device and making the duct grouting operation more convenient.

[0023] like Figure 1 , Figure 2 As shown, in some embodiments, a connection hole 13 is formed through the base 2, and the fastening nail 4 is elastically adapted in the connection hole 13. For example, a spring is sleeved on the outer wall of the fastening nail 4, and the fastening nail 4 is elastically movable by the contact between the spring and the base 2. A mounting cover 14 opposite to the connection hole 13 is provided on the end surface of the inner wall of the base 2 away from the grouting channel, and the knocking assembly 5 includes a knocking rod 8 elastically arranged in the mounting cover 14 and opposite to the fastening nail 4.

[0024] For example, a toothed structure 9 is provided on the side wall of the knocking rod 8, that is, the knocking rod 8 is configured as a structure similar to a rack. In addition, the knocking assembly 5 also includes a driving wheel 10 rotatably disposed in the mounting cover 14, and the driving wheel 10 is rotatably driven by a driving member (not shown). In a preferred example, the driving member may be a small motor. In detail, the driving wheel 10 is a cam, and a toothed portion 11 is formed on the distal end of the driving wheel 10. When the driving member drives the driving wheel 10 to rotate, the toothed portion 11 of the driving wheel 10 will engage with the toothed structure 9, and thereby drive the knocking rod 8 to bounce into a power storage state, and as the toothed portion 11 disengages from the toothed structure 9, the knocking rod 8 is released, thereby achieving the knocking of the fastening nail 4.

[0025] It can be understood that by selecting the driving wheel 10 and the knocking rod 8, a larger knocking stroke of the knocking rod 8 can be achieved, thereby achieving a more stable fixed installation of the fastening nail 4 and the channel.

[0026] like Figure 1 , Figure 3 As shown, in other embodiments, a blind hole 12 is provided on the fitting surface between the base 2 and the grouting channel, and the fastening nail 4 is elastically adapted in the blind hole 12. For example, a spring is sleeved on the outer wall of the fastening nail 4, and the fastening nail 4 is elastically adapted by the abutment between the spring and the base 2, and the knocking assembly 5 preferably includes a knocking block 6 elastically arranged at the end face of the blind hole 12 and an electromagnet 7 arranged at the end face of the blind hole 12. Among them, the knocking block 6 is adapted to be able to be adsorbed or released by the electromagnet 7 and to be elastic. In other words, when the electromagnet 7 is energized, the knocking block 6 is adsorbed to one side of the electromagnet 7 and enters a power storage state; then the electromagnet 7 is powered off, and the knocking block 6 returns to a natural state, thereby achieving a tight and fixed knocking.

[0027] It can be understood that, compared with the above-mentioned embodiment of the knocking rod 8, the knocking block 6 can be accommodated in the blind hole 12, so that the thermal conductivity detection terminal 1 has a smaller volume and is not easy to affect the stability of the channel grouting.

[0028] In a preferred example, the fastening nails 4 and the knocking components 5 may be provided in multiple groups on the base 2. For example, the fastening nails 4 and the knocking components 5 may be symmetrically arranged in four groups at the four corners of the base 2, thereby achieving a more stable installation of the thermal conductivity detection terminal 1 and the channel.

[0029] In addition, it is also preferred that a cavity 15 is constructed in the fastening nail 4, and the cavity 15 has an opening connected to the knocked surface of the fastening nail 4, and a flow channel 16 connected to the cavity 15 is opened on the side wall of the fastening nail 4. In addition, a jet component 17 for injecting glue between the fastening nail 4 and the knocking component 5 is also provided on the base 2. For example, the jet component 17 may include a capsule for storing glue and an electric nozzle arranged on the capsule. After the fastening nail 4 is knocked into the inner wall of the channel by the knocking component 5, the jet component 17 can be controlled to spray glue into the blind hole 12 or the connecting hole 13, and then the knocking action of the knocking component 5 can press the glue into the cavity 15, and finally the glue can be coated between the fastening nail 4 and the inner wall of the fastening hole nailed through the flow channel 16, so that a more stable connection between the fastening nail 4 and the channel can be achieved.

[0030] For example, whether the fastening nail 4 is driven into the inner wall of the hole can be detected and judged by a sensor arranged at the inner wall of the blind hole 12 or the connecting hole 13. For example, the sensor can be an infrared sensor. When the fastening nail 4 no longer blocks the signal of the infrared sensor, it can be judged that the fastening nail 4 is out of the blind hole 12 or the connecting hole 13 and is driven into the inner wall of the hole, and then the jetting member 17 performs the above-mentioned jetting action.

[0031] The above is only a preferred embodiment of the utility model. It should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A grouting monitoring device, comprising a thermal conductivity detection terminal (1) arranged in a grouting duct and a controller arranged outside, wherein the thermal conductivity detection terminal (1) is electrically connected to the controller, and is characterized in that: The thermal conductivity detection terminal (1) comprises a base (2) and a sensor group (3) arranged on the base (2); a fastening nail (4) is elastically arranged on the base (2); and a knocking component (5) for knocking the fastening nail (4) is also arranged on the base (2).

2. The hole grouting monitoring device according to claim 1 is characterized in that: The fastening nail (4) and the base (2) are elastically movable via a spring.

3. The hole grouting monitoring device according to claim 1 is characterized in that: The knocking assembly (5) comprises a knocking block (6) which is arranged to be elastic, and the knocking block (6) is opposite to the fastening nail (4). The knocking assembly (5) also comprises an electromagnet (7), and the knocking block (6) is adapted to be able to be elastic when being adsorbed or released by the electromagnet (7).

4. The hole grouting monitoring device according to claim 1 is characterized in that: The knocking assembly (5) comprises a knocking rod (8) which is elastically arranged, the knocking rod (8) being opposite to the fastening nail (4), a toothed structure (9) being arranged on the side wall of the knocking rod (8), and the knocking assembly (5) further comprises a driving wheel (10) which is driven to rotate by a driving member, the driving wheel (10) being a cam, and a toothed portion (11) which can mesh with the toothed structure (9) is formed on the distal end of the driving wheel (10).

5. The hole grouting monitoring device according to claim 3 is characterized in that: A blind hole (12) is provided on the mating surface between the base (2) and the grouting channel, the fastening nail (4) is elastically adapted in the blind hole (12), and the knocking component (5) is arranged at the end face of the blind hole (12).

6. The hole grouting monitoring device according to claim 4 is characterized in that: The base (2) is provided with a connecting hole (13) extending therethrough, the fastening nail (4) being elastically adapted to fit within the connecting hole (13), a mounting cover (14) opposite to the connecting hole (13) being provided on the end surface of the base (2) facing away from the inner wall of the grouting channel, and the striking assembly (5) being arranged within the mounting cover (14).

7. The hole grouting monitoring device according to any one of claims 1 to 6, characterized in that: The fastening nails (4) and the knocking components (5) are arranged in multiple groups on the base (2).

8. The hole grouting monitoring device according to claim 5 or 6, characterized in that: The fastening nail (4) has a cavity (15) formed therein, a flow channel (16) connected to the cavity (15) is provided on the side wall of the fastening nail (4), the cavity (15) has an opening connected to the struck surface of the fastening nail (4), and a jet component (17) for injecting glue between the fastening nail (4) and the striking assembly (5) is also provided on the base (2).

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