CN220230888U - Anti-seismic detection device for civil engineering - Google Patents

Abstract

The utility model belongs to the technical field of civil engineering, and provides an anti-seismic detection device for civil engineering, which comprises a main body, a driving mechanism, a detection plate and a fixing assembly, wherein the main body is provided with a plurality of detection plates; the main body comprises two guide rails, and the driving mechanism comprises a motor, a worm wheel, a driving arm, a transmission rod and a moving seat; the worm is connected with the output end of the motor, the worm wheel is meshed with the worm, the driving arm is fixedly connected with the axle center of the worm wheel through a rotating shaft, one end, away from the worm wheel, of the driving arm is hinged with the transmission rod, one end, away from the driving arm, of the transmission rod is connected with the movable seat, and the movable seat is fixedly connected with the lower surface of the detection plate. Through using motor drive worm wheel mechanism, realized the continuous and controllable left and right directions reciprocating motion to the pick-up plate, more press close to the ground vibration mode in the true earthquake process.

Description

Anti-seismic detection device for civil engineering

Technical Field

The utility model belongs to the technical field of civil engineering, and particularly relates to an earthquake-resistant detection device for civil engineering.

Background

Civil engineering is a scientific technology that covers a wide variety of earth-working facilities, including materials and equipment used, as well as technical activities such as surveying, designing, constructing, maintaining and repairing. The engineering goal is to create those land-based or underground engineering facilities that directly or indirectly serve human life, production, military, and scientific research.

In the prior art, we notice that the utility model patent of patent number CN211425808U discloses a civil engineering structure anti-seismic test device, which comprises a fixed base, a rotating shaft arranged on the fixed base, a tray connected with the rotating shaft, a limit collar uniformly arranged on the tray, supporting seats respectively arranged on the outer sides of the limit collars, a fixing screw arranged between the supporting seats and the limit collars, and a driving assembly for driving the rotating shaft. The civil engineering structure anti-seismic test device is convenient for driving the rotating shaft through the driving assembly, so that the rotating shaft is convenient for driving the tray to move, the prefabricated structure is convenient to clamp and fix through the limiting collar, and the prefabricated structure is convenient to perform anti-seismic test.

However, the above-described techniques have some limitations. For example, since the device relies on a rotating tray to effect shock detection, whereas the turntable is only capable of rotational movement, the shock forces generated by it may be small. Such low vibration forces may affect the detection of the anti-seismic effect of the engineering structure or material, thereby reducing the accuracy of the detection result. Therefore, we provide an earthquake-resistant detection device for civil engineering.

Disclosure of Invention

The utility model provides an earthquake-resistant detection device for civil engineering, which aims to solve the problems proposed by the background technology.

The utility model is realized in such a way that the anti-seismic detection device for civil engineering comprises a main body, a driving mechanism, a detection plate and a fixing component; the main body comprises two guide rails, the detection plate is slidably arranged between the two guide rails, the fixing assembly is arranged on the upper surface of the detection plate, and the driving mechanism comprises a motor, a worm wheel, a driving arm, a transmission rod and a movable seat; the worm is connected with the output end of the motor, the worm wheel is meshed with the worm, the driving arm is fixedly connected with the axle center of the worm wheel through a rotating shaft, one end, away from the worm wheel, of the driving arm is hinged with the transmission rod, one end, away from the driving arm, of the transmission rod is connected with the movable seat, and the movable seat is fixedly connected with the lower surface of the detection plate.

Optionally, the main body further comprises two supporting seats, two connecting plates, a base and a guide rail mounting seat, wherein the two guide rails are fixedly mounted on the guide rail mounting seat, the two supporting seats are fixedly mounted on the upper surface of the base, the two guide rail mounting seats are respectively mounted on the two supporting seats, and the two connecting plates are connected between the two supporting seats.

Optionally, the two the spout of guide rail corresponds each other, be equipped with spacing portion on the guide rail, the pick-up plate with the spout is connected, just be equipped with on the pick-up plate with spacing portion matched draw-in groove.

Optionally, the number of driving arm with the quantity of transfer line is two, the pivot rotates and installs on two bearing frames, the worm wheel is located two between the bearing frame, the motor assembly in on the connecting plate.

Optionally, the driving mechanism further comprises two risers and at least one guide shaft; the two risers are fixedly arranged on the upper surface of the base, the guide shaft is arranged between the two risers, the guide shaft penetrates through the movable seat, the movable seat is in sliding connection with the guide shaft, and one end of the worm, which is far away from the motor, is in rotary connection with the risers.

Optionally, the fixed subassembly includes at least one fixed plate, at least one pneumatic cylinder and at least one clamp plate, fixed plate fixed mounting in the upper surface of pick-up plate, the output of pneumatic cylinder with the fixed plate is relative, and is fixed in the upper surface of pick-up plate, the output of pneumatic cylinder with clamp plate fixed connection.

Optionally, a fixing seat is arranged on the upper surface of the detection plate, and the fixing seat fixes the hydraulic cylinder on the upper surface of the detection plate.

The utility model has the beneficial effects that;

the reciprocating motion of the detection plate simulates the vibration phenomenon in the earthquake to a certain extent. The prefabricated structure is fixed on the upper surface of the detection plate, and the prefabricated structure can be subjected to corresponding vibration along with the movement of the detection plate. By observing and recording the reaction and changes of the prefabricated structure under such vibrations, the earthquake-resistant properties of the prefabricated structure can be evaluated.

Through using motor drive worm wheel mechanism, realized the continuous and controllable left and right directions reciprocating motion to the pick-up plate, more press close to the ground vibration mode in the true earthquake process. The clamping force between the pressing plate and the fixing plate is driven by the hydraulic cylinder, so that the prefabricated structure can be stably and efficiently fixed, the movement of the prefabricated structure in the vibration detection process is reduced, and the detection accuracy is improved. The movement speed of the detection plate and the clamping force between the pressing plate and the fixing plate can be adjusted by controlling the rotation speed of the motor and the working state of the hydraulic cylinder so as to adapt to the detection of prefabricated structures with different specifications and different earthquake-resistant requirements.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of an earthquake-proof detection device for civil engineering, which is provided by the utility model;

FIG. 2 is an exploded view of an earthquake-proof detection device for civil engineering provided by the utility model;

FIG. 3 is a schematic diagram showing a schematic diagram of a front sectional structure of an earthquake-proof detection device for civil engineering provided by the utility model;

fig. 4 is a schematic perspective view of a driving mechanism of an earthquake-proof detection device for civil engineering according to the present utility model.

The reference numerals are as follows:

1-main body, 11-guide rail, 111-chute, 112-limit part, 12-supporting seat, 13-connecting plate, 14-base, 15-guide rail installation seat, 16-bearing seat, 2-driving mechanism, 21-motor, 22-worm, 23-worm wheel, 24-driving arm, 25-driving rod, 26-movable seat, 27-vertical plate, 28-guiding shaft, 29-rotating shaft, 3-detecting plate, 31-clamping groove, 4-fixing component, 41-fixing plate, 42-hydraulic cylinder, 43-pressing plate and 44-fixing seat.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, are intended to be within the scope of the present application.

The terms "first" and "second" and the like in this application are used for distinguishing between different objects and not for describing a particular sequential order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps, operations, components, or modules is not limited to the particular steps, operations, components, or modules listed but may optionally include additional steps, operations, components, or modules inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

As shown in fig. 1 to 4, in the present exemplary embodiment, we provide an earthquake-resistant detecting apparatus for civil engineering. The device mainly comprises a main body 1, a driving mechanism 2, a detection plate 3 and a fixing component 4. The body 1 comprises two guide rails 11, and the detection plate 3 is slidably mounted between the two guide rails 11. A fixing member 4 is installed on the upper surface of the detection plate 3 for fixing the civil engineering works prefabricated structure that needs to be subjected to earthquake-proof detection.

The main function of the drive mechanism 2 is to drive the detector plate 3 in motion between the two guide rails 11. Specifically, the driving mechanism 2 includes a motor 21, a worm 22, a worm wheel 23, a driving arm 24, a transmission rod 25, and a moving seat 26. The worm 22 is connected with the output end of the motor 21, the worm wheel 23 is connected with the worm 22 in a meshed manner, the driving arm 24 is fixedly connected with the axle center of the worm wheel 23 through a rotating shaft 29, one end, far away from the worm wheel 23, of the driving arm 24 is hinged with a driving rod 25, one end, far away from the driving arm 24, of the driving rod 25 is connected with a movable seat 26, and the movable seat 26 is fixedly connected with the lower surface of the detection plate 3.

In actual use, the preformed structure is placed on the upper surface of the sensing plate 3 and secured by the securing assembly 4. Then, the motor 21 is started, the output end of the motor drives the worm 22 to rotate, and further drives the worm wheel 23, the driving arm 24, the driving rod 25 and the moving seat 26 to move, so that the detection plate 3 slides back and forth between the guide rails 11 in the left-right direction. During operation of the seismic detection device, the reciprocating motion of the detection plate 3 simulates to some extent the vibration phenomenon in the seismic. The prefabricated structure is fixed on the upper surface of the detecting plate 3, and the prefabricated structure is subjected to corresponding vibration along with the movement of the detecting plate 3. By observing and recording the reaction and changes of the prefabricated structure under such vibrations, the earthquake-resistant properties of the prefabricated structure can be evaluated. On the one hand, the deformation condition of the prefabricated structure during vibration can be observed. If the prefabricated structure is significantly deformed under slight shock, its shock resistance may be weak. Conversely, if the prefabricated structure is stable under large vibrations, its vibration-resistant properties may be strong. On the other hand, the damage condition of the prefabricated structure in the vibration process can be detected. If the prefabricated structure cracks or breaks during vibration, this is a significant signal that its seismic performance is inadequate. This indicates that the prefabricated structure has good shock resistance if it can remain intact under repeated shocks.

According to the anti-seismic detection device, the worm 22 and the worm wheel 23 are driven by the motor 21, so that continuous and controllable left-right direction reciprocating motion of the detection plate is realized, and compared with the direction of a rotary tray in the prior art, the anti-seismic detection device is more close to a ground vibration mode in the real earthquake process.

The use of the worm 22 and the worm wheel 23 in combination has the following advantages:

high transmission ratio: the gear ratio of the worm and worm wheel combination can be very high, which can achieve a large reduction ratio in a small space, which is very beneficial in many applications.

Self-locking function: in some specific arrangements, the worm drives the worm wheel to rotate easily, but the worm wheel cannot drive the worm to rotate, a phenomenon known as self-locking. This feature may provide a safety function, for example preventing free movement of the system when the power is disconnected or the motor is stopped.

Stable and vibration-free: because of the special curved surface shape of the worm gear teeth, the contact area of the two tooth surfaces is large, so that the vibration is small in the transmission process, the operation is stable, and the noise is low.

In practical applications, the prefabricated structure tends to have a large mass, and thus requires a large driving force when simulating vibration. By adopting the transmission between the worm 22 and the worm wheel 23, the torque of the motor 21 can be effectively amplified, so that enough power is provided for driving the prefabricated structure with heavy mass, and the normal movement of the detection plate is ensured.

The motor operates on the principle that electromagnetic induction, i.e. current through windings generates a magnetic field, and the change of the magnetic field generates a voltage. The rotational speed of the motor may be adjusted by varying the power frequency or voltage. In an ac motor, the rotational speed of the motor is typically varied by adjusting the frequency of the power supply. In the direct current motor, the rotation speed of the motor may be changed by changing the power supply voltage or by changing the exciting current of the motor. The control method of the motor is a technical means well known to those skilled in the art, and detailed description thereof is omitted herein.

In this earthquake-proof detecting device, the vibration frequency of the detecting plate can be changed by adjusting the running speed of the motor, thereby simulating earthquake environments of different levels, which is very valuable for earthquake-proof detection in civil engineering. In sum, through this antidetonation detection device, we not only can simulate the earthquake environment of different grades, can also evaluate the anti-seismic performance of civil engineering prefabricated structure from a plurality of angles. The method has important significance for improving the safety and reliability of the civil engineering structure and preventing the loss caused by earthquake disasters.

As an example, to further improve the stability and durability of the apparatus, the main body 1 further includes two support seats 12, two connection plates 13, a base 14, and a rail mount 15. Wherein, two guide rails 11 are fixedly installed on the guide rail installation seat 15, so that the detection plate 3 can stably slide on the guide rails 11.

The two support bases 12 are fixedly mounted on the upper surface of the base 14, providing a firm support, increasing the stability of the device and reducing the possible shaking of the device due to vibration. The two guide rail mounting seats 15 are respectively mounted on the two supporting seats 12, so that the guide rail 11 can efficiently utilize the stability provided by the supporting seats 12.

The two connection plates 13 are located between the two support bases 12, and they play a role in connection and fixation, so that the two support bases 12 and the whole main body structure form a whole, and the anti-seismic and anti-tilting capabilities of the support bases are enhanced.

In the design of the whole device, stability and durability are particularly considered, so that stable operation can be ensured under the condition of simulating strong vibration, and the earthquake-resistant performance of the prefabricated structure can be reliably simulated and measured. The design not only enables the equipment to be more suitable for the requirements of civil engineering, but also enables the equipment to effectively provide accurate anti-seismic detection results for a long time.

As an example, in this example, the slide grooves 111 of the two guide rails 11 are designed to correspond to each other, which helps to ensure that the detection plate 3 slides smoothly between the two guide rails 11. Meanwhile, the guide rail 11 is provided with a limit part 112, so as to prevent the detection plate 3 from moving parallel to the axis direction of the rotating shaft 29 in the sliding process.

The detection plate 3 is connected to the slide groove 111, and a locking groove 31 matching the stopper 112 is provided in the detection plate 3. This design allows the detection plate 3 to be accurately stopped when reaching the stopper 112 during movement, preventing it from sliding out of the chute 111, improving the safety and reliability of the apparatus.

The cooperation design of the limiting part 112 and the clamping groove 31 aims to ensure that the detection plate 3 can stably work in a designated range when in vibration simulation, and damage or safety risk possibly caused by falling off from the sliding groove 111 is avoided. Such a design enhances the reliability of the device in performing civil engineering seismic performance tests

As an example, the number of driving arms 24 and the number of transmission rods 25 are both set to two. This "double arm double lever" design helps to provide a more even and firm force during actuation, thereby better controlling movement of the traveling block 26.

The rotary shaft 29 is rotatably mounted on the two bearing blocks 16, and the worm wheel 23 is set between the two bearing blocks 16. This arrangement ensures smooth movement of the worm wheel 23, reduces wear due to friction, and thus improves durability of the apparatus.

The motor 21 is mounted on the connection plate 13 in such a position that it drives the worm 22 and the worm wheel 23, thereby transmitting force to the driving arm 24 and the transmission rod 25, driving the whole device in operation.

The design of the two driving arms 24 and the two transmission rods 25 makes the driving force more balanced, providing a more stable driving effect. The design effectively improves the stability of equipment and the precision of earthquake-resistant simulation, so that the device is more suitable for detecting the earthquake-resistant performance of a prefabricated structure in civil engineering.

As an example, the drive mechanism 2 further comprises two risers 27 and at least one guide shaft 28. Two risers 27 are fixedly mounted on the upper surface of the base 14, and a guide shaft 28 is mounted between the two risers 27. This arrangement helps to enhance the stability and durability of the drive mechanism.

The guide shaft 28 passes through the movable seat 26 and is connected with the movable seat in a sliding way, so that the guide shaft 28 can effectively guide the movement of the movable seat 26, and the running stability of the movable seat is further ensured. In this embodiment, the number of guide shafts 28 is two, which may provide a better guiding effect, helping to ensure stability and accuracy of the device during operation.

The end of the worm 22 remote from the motor 21 is rotatably connected to the riser 27, and this design ensures the stability of the rotation of the worm 22 driven by the motor 21. This is because the riser 27 can provide stable support, preventing excessive deflection of the worm 22 during rotation, thereby ensuring that the driving force is more accurately transmitted to the worm wheel 23 and the driving arm 24.

Through above-mentioned design, the device can carry out accurate shock resistance to prefabricated structure in civil engineering and detect, has further promoted the practicality and the work efficiency of equipment.

As an example, the fixing assembly 4 includes at least one fixing plate 41, at least one hydraulic cylinder 42, and at least one pressing plate 43. The fixing plate 41 is fixedly mounted on the upper surface of the detection plate 3, and the output end of the hydraulic cylinder 42 faces the fixing plate 41 and is also fixed on the upper surface of the detection plate 3. This layout design enables the apparatus to provide stable support during the inspection process.

The output end of the hydraulic cylinder 42 is fixedly connected with the pressing plate 43, and after the hydraulic cylinder 42 is started, the pressing plate 43 can be driven by the output end of the hydraulic cylinder 42 to be close to the fixed plate 41. When the distance between the fixing plate 41 and the pressing plate 43 becomes smaller, they can perform a clamping and fixing action.

In this embodiment, the number of the fixing plate 41, the hydraulic cylinder 42, and the pressing plate 43 is two. The prefabricated structure to be detected is placed between the fixed plate 41 and the pressing plate 43, and the pressing plate 43 is driven by the hydraulic cylinder 42 to be close to the fixed plate 41 until the pressing plate 43 is in close contact with the prefabricated structure, so that the clamping force between the pressing plate 43 and the fixed plate 41 can fix the prefabricated structure.

The design not only can provide strong fixing force to ensure the stability of the prefabricated structure during anti-seismic detection, but also allows a user to adjust the distance between the pressing plate 43 and the fixing plate 41 according to the actual size of the prefabricated structure, thereby meeting the requirements of the prefabricated structures with different sizes and enhancing the adaptability and practicality of the equipment.

The principle of operation of the hydraulic cylinder 42 is based, among other things, on the incompressible nature of the liquid (typically hydraulic oil) and on pascal's law (i.e. the pressure of the liquid in a closed container is equal throughout). In hydraulic systems, fluid is pressurized by a force pump and then high pressure fluid is fed through a line to a hydraulic cylinder. The high pressure fluid pushes the piston of the hydraulic cylinder to move to generate power. Control of hydraulic cylinder 42 is typically accomplished by a valve system that controls the timing and direction of the flow of high pressure fluid into and out of the hydraulic cylinder, thereby controlling the direction, speed, and force of the piston movement of the hydraulic cylinder. Therefore, the distance between the pressing plate 43 and the fixing plate 41 can be precisely controlled by the hydraulic cylinder to accommodate the prefabricated structures of different sizes.

However, the design and control principles of hydraulic cylinders are well established in the prior art and are widely used in various mechanical devices and are therefore not described in detail herein.

As an example, the upper surface of the detection plate 3 is provided with a fixing seat 44, and the main function of this fixing seat 44 is to stably mount the hydraulic cylinder 42 to the upper surface of the detection plate 3. By this design, the hydraulic cylinder 42 can be operated stably without causing a positional variation of the hydraulic cylinder 42 itself due to the movement of the detection plate 3, thereby ensuring that the pressure applied between the pressing plate 43 and the fixing plate 41 is always kept stable, and further ensuring the fixing stability of the prefabricated structure. This design increases the reliability and operational stability of the entire shock resistant detection device.

In summary, in the technical solution of the present application, the vibration-proof simulation is actually realized by the reciprocating motion of the detection plate in the left-right direction. In an actual earthquake, the vibration of the ground is multidirectional and multidimensional, but in most cases, the vibration in the horizontal direction is the main vibration direction, and the damage to the building structure is most serious. Therefore, by simulating the left-right reciprocating motion of the detection plate, the influence of the main vibration suffered by the building during the earthquake can be simulated, thereby effectively detecting the earthquake resistance.

The exemplary embodiments of the present application may be combined with each other, and exemplary embodiments obtained by combining also fall within the scope of the present application.

The present application has been described with particular application to the principles and embodiments thereof, the description of the above examples being only for aiding in the understanding of the method of the present application and its core ideas; meanwhile, those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present application, and the present description should not be construed as limiting the present application in view of the above.

Claims (7)

1. An earthquake-resistant detection device for civil engineering is characterized by comprising a main body (1), a driving mechanism (2), a detection plate (3) and a fixing assembly (4); the main body (1) comprises two guide rails (11), the detection plate (3) is slidably arranged between the two guide rails (11), the fixing assembly (4) is arranged on the upper surface of the detection plate (3), and the driving mechanism (2) comprises a motor (21), a worm (22), a worm wheel (23), a driving arm (24), a transmission rod (25) and a moving seat (26); the worm (22) is connected with the output end of the motor (21), the worm wheel (23) is meshed with the worm (22), the driving arm (24) is fixedly connected with the axle center of the worm wheel (23) through a rotating shaft (29), one end of the driving arm (24) away from the worm wheel (23) is hinged with the transmission rod (25), one end of the transmission rod (25) away from the driving arm (24) is connected with the movable seat (26), and the movable seat (26) is fixedly connected with the lower surface of the detection plate (3).

2. The earthquake-resistant detecting device for civil engineering according to claim 1, wherein the main body (1) further comprises two supporting seats (12), two connecting plates (13), a base (14) and a guide rail mounting seat (15), wherein the two guide rails (11) are fixedly mounted on the guide rail mounting seat (15), the two supporting seats (12) are fixedly mounted on the upper surface of the base (14), the two guide rail mounting seats (15) are respectively mounted on the two supporting seats (12), and the two connecting plates (13) are connected between the two supporting seats (12).

3. The earthquake-resistant detecting device for civil engineering according to claim 2, wherein the sliding grooves (111) of the two guide rails (11) correspond to each other, a limit part (112) is provided on the guide rail (11), the detecting plate (3) is connected with the sliding groove (111), and a clamping groove (31) matched with the limit part (112) is provided on the detecting plate (3).

4. The earthquake-resistant detecting device for civil engineering according to claim 2, characterized in that the number of the driving arms (24) and the number of the driving rods (25) are two, the rotating shaft (29) is rotatably installed on two bearing seats (16), the worm wheel (23) is arranged between the two bearing seats (16), and the motor (21) is assembled on the connecting plate (13).

5. The earthquake-proof detection device for civil engineering according to claim 4, characterized in that the driving mechanism (2) further comprises two risers (27) and at least one guiding shaft (28); the two risers (27) are fixedly arranged on the upper surface of the base (14), the guide shaft (28) is arranged between the two risers (27), the guide shaft (28) penetrates through the movable seat (26), the movable seat (26) is in sliding connection with the guide shaft (28), and one end, far away from the motor (21), of the worm (22) is in rotary connection with the risers (27).

6. The earthquake-resistant detecting device for civil engineering according to claim 1, wherein the fixing assembly (4) comprises at least one fixing plate (41), at least one hydraulic cylinder (42) and at least one pressing plate (43), the fixing plate (41) is fixedly mounted on the upper surface of the detecting plate (3), the output end of the hydraulic cylinder (42) is opposite to the fixing plate (41) and is fixed on the upper surface of the detecting plate (3), and the output end of the hydraulic cylinder (42) is fixedly connected with the pressing plate (43).

7. The earthquake-resistant detecting device for civil engineering according to claim 6, wherein a fixing base (44) is provided on the upper surface of the detecting plate (3), and the fixing base (44) fixes the hydraulic cylinder (42) to the upper surface of the detecting plate (3).