Concrete vibrator with detection function and use method thereof

Abstract

The present invention relates to the technical field of vibrators, and discloses a concrete vibrator with detection and a method for using the same. The concrete vibrator comprises a shell assembly, a vibration assembly, and a detection assembly. The shell assembly comprises an outer sleeve and an insulating tube, and the insulating tube is fixedly sleeved on the outer periphery of the outer sleeve; the vibration assembly comprises an eccentric shaft, an eccentric piece arranged on the outer periphery of the eccentric shaft, and a driving mechanism, and an insulating support structure is provided between the eccentric shaft and the outer sleeve; the detection assembly comprises a water immersion sensor and a detection module. The water immersion sensor is provided with two metal probes, a first electrical connector, and a second electrical connector. The first electrical connector is in electrical contact with the outer sleeve, and the second electrical connector is in electrical contact with the eccentric shaft. Two electrodes of the detection module are respectively in electrical contact with the outer sleeve and the eccentric shaft, so that a detection electrical circuit is formed between the water immersion sensor, the eccentric shaft, the detection module, and the outer sleeve, and the water wading condition in the concrete is detected by the two metal probes on the water immersion sensor.

Description

Technical Field

[0001] The present invention relates to the technical field of vibrators, and in particular to a concrete vibrator with detection function and a use method thereof. Background Art

[0002] A vibrator (vibrating rod) is a tool used in engineering construction that can compact concrete, eliminate honeycombed concrete and other phenomena, and improve strength. However, during the concrete vibration process, if the vibration is excessive, water will appear inside the concrete, affecting the density, strength and durability of the concrete. This requires a high level of operator experience. Currently, additional detection equipment and ultrasonic or radar scanning are generally used to check for internal water accumulation areas, or sampling and testing are performed after pouring is completed. Existing technologies make it difficult to detect the time and location of water in concrete in real time and accurately, making it difficult to effectively control the vibrator to improve the effect of concrete vibration. In addition, although some multifunctional vibrators are now available that can detect concrete density, etc., they have problems with unreasonable structural layout. The wires connecting the internal detection sensors are difficult to control and the design is difficult. In addition, the vibration of the vibrator will be affected in the circumferential direction, causing the vibrator to deviate to one side during operation. Summary of the Invention

[0003] The object of the present invention is to provide a concrete vibrator with detection and a method of use to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0004] The technical solutions adopted to solve the above technical problems are:

[0005] The present invention provides a concrete vibrator with detection function, comprising:

[0006] The housing assembly comprises an outer sleeve and an insulating tube, wherein the insulating tube is fixedly sleeved on the outer circumference of the outer sleeve, and the outer sleeve is a conductive component;

[0007] A vibration assembly includes an eccentric shaft rotatably sleeved within the outer sleeve, an eccentric member eccentrically disposed on the outer periphery of the eccentric shaft, and a drive mechanism, wherein the eccentric shaft is a conductive member, an insulating support structure is provided between the eccentric shaft and the outer sleeve to achieve insulation isolation, and the drive mechanism is used to drive the eccentric shaft to rotate;

[0008] A detection component includes a water immersion sensor and a detection module. The water immersion sensor is arranged at one end of the outer sleeve, and the detection module is arranged at the other end of the outer sleeve. The water immersion sensor is provided with two metal probes, a first electrical connector, and a second electrical connector. The first electrical connector is in electrical contact with an end of the outer sleeve close to the water immersion sensor, and the second electrical connector is in electrical contact with an end of the eccentric shaft close to the water immersion sensor. The two electrodes of the detection module are respectively in electrical contact with an end of the outer sleeve away from the water immersion sensor and an end of the eccentric shaft away from the water immersion sensor, so that a detection electrical circuit is formed between the water immersion sensor, the eccentric shaft, the detection module, and the outer sleeve. The two metal probes are used to contact water in concrete. The detection module is configured to determine that the two metal probes in the concrete are conductive when the real-time current of the detection electrical circuit reaches a preset water wading current, and trigger the water wading sensor to generate a water wading current signal for controlling the drive mechanism to stop operating.

[0009] The concrete vibrator of the present invention has the following beneficial effects:

[0010] When in use, the eccentric shaft is driven to rotate by the driving mechanism, thereby driving the eccentric piece to rotate eccentrically, causing the vibrator to generate circular vibration, thereby achieving the effect of vibrating the concrete. At the same time, the two metal probes on the water immersion sensor are used to detect the water wading situation in the concrete. When the concrete is vibrated to the critical point of wading, a certain amount of water will be generated in the concrete. At this time, the two metal probes will come into contact with the water in the concrete and be conductive, triggering the water immersion sensor to generate a water wading current signal for controlling the driving mechanism to stop running, which can always prevent excessive local vibration of the concrete and effectively avoid the occurrence of wading phenomenon. In addition, the present invention The detection electrical circuit in the invention is formed between the water immersion sensor, eccentric shaft, detection module and outer sleeve. There is no need for wiring inside the vibrator, and the water immersion sensor and detection module are respectively connected to the two ends of the outer sleeve, so that the exciting force of the vibrator in the circumferential direction is uniform. During the vibration operation, the vibrator will not deviate to one side, which also reduces the difficulty of design. It is only necessary to optimize the existing vibrator structure. There is no need to drill the eccentric shaft and the outer sleeve. It is only necessary to install an insulating tube on the outer periphery of the outer sleeve and set an insulating support structure between the eccentric shaft and the outer sleeve to achieve insulation isolation to form a detection electrical circuit.

[0011] Under normal operating conditions, there will be a working current in the detection circuit to keep the water immersion sensor running. When the water immersion sensor is triggered to generate a water-related current signal, the current in the detection circuit will change. The detection module will generate a shutdown signal to control the drive mechanism to stop running based on the change in current. It can be understood that the detection module is used to monitor the current changes in the detection circuit in real time, and also provides the rated working current.

[0012] As a further improvement of the above technical solution, the sealing sleeve at one end of the outer sleeve away from the detection module is provided with an end plug as an insulating component, the water immersion sensor is detachably installed on the end of the end plug facing away from the eccentric shaft, the end face of the end plug facing the end of the eccentric shaft is provided with a first electrical contact, the first electrical contact is in electrical contact with the end face of the eccentric shaft, the outer periphery of the end of the end plug facing the eccentric shaft is provided with a first electrical contact ring, the first electrical contact ring is in electrical contact with the inner circumferential wall of the outer sleeve, and the first electrical contact and the first electrical contact ring are electrically connected to the second electrical connector and the first electrical connector respectively.

[0013] As a further improvement to the above technical solution, the end surface of the end plug facing one end of the eccentric shaft is provided with a first groove extending in the axial direction, the first electrical contact is slidably mounted in the first groove, the first groove is provided with a first elastic member acting on the first electrical contact, and the first elastic member is used to provide an elastic force for the first electrical contact to abut against the end surface of the eccentric shaft;

[0014] One end of the end plug facing the eccentric shaft is threadedly connected to the inner circumferential wall of the outer sleeve.

[0015] As a further improvement of the above technical solution, the end of the end plug is provided with a mounting groove on the side facing away from the eccentric shaft, and the water immersion sensor is detachably inserted into the mounting groove. The bottom of the mounting groove is provided with two first electrical ears, and the first electrical connector and the second electrical connector are respectively plugged into the two first electrical ears, and the two first electrical ears are respectively electrically connected to the first electrical contact and the first electrical contact ring.

[0016] As a further improvement of the above technical solution, the end plug is detachably provided with an end cover at the end facing away from the eccentric shaft, and the end cover is an insulating component. The end of the end cover away from the water immersion sensor is provided with a first metal ring and a second metal ring, both of which are annular. The outer diameter of the first metal ring is smaller than the inner diameter of the second metal ring. The first metal ring and the second metal ring are coaxially arranged on the end face of the end cover away from the water immersion sensor. The first metal ring and the second metal ring are spaced apart from the center of the end cover outward. The interior of the end cover is provided with a first conductive strip and a second conductive strip. The first conductive strip is between the first metal ring and one of the metal probes, and the second conductive strip is connected between the second metal ring and the other metal probe.

[0017] As a further improvement of the above technical solution, a sealing sleeve at one end of the outer sleeve away from the water immersion sensor is provided with a connector seat, and the connector seat is an insulating component. The end face of the connector seat facing one end of the eccentric shaft is provided with a second electric contact, and the second electric contact is in electrical contact with the end face of the eccentric shaft. The outer periphery of the connector seat facing one end of the eccentric shaft is provided with a second electric contact ring, and the second electric contact ring is in electrical contact with the inner circumferential wall of the outer sleeve. The second electric contact ring and the second electric contact are respectively electrically connected to the two electrodes of the detection module.

[0018] As a further improvement to the above technical solution, the end surface of the connector base facing one end of the eccentric shaft is provided with a second groove extending in the axial direction, the second electrical contact is slidably mounted in the second groove, and the second groove is provided with a second elastic member acting on the second electrical contact, the second elastic member being used to provide an elastic force for the second electrical contact to abut against the end surface of the eccentric shaft;

[0019] One end of the connector seat facing the eccentric shaft is threadedly connected to the inner circumferential wall of the outer sleeve.

[0020] As a further improvement to the above technical solution, the connector base is provided with a plug-in groove at one end facing away from the eccentric shaft, and two second electrical lugs are provided at the bottom of the plug-in groove, and the two second electrical lugs are electrically connected to the second electrical contact and the second electrical contact ring respectively;

[0021] The detection module includes an electrical socket and a detector connected by a wire. The electrical socket is detachably inserted into the plug-in groove. The electrical socket is provided with a third electrical connector and a fourth electrical connector respectively plugged into the two second electrical connector ears. The detector is electrically connected to the third electrical connector and the fourth electrical connector respectively, and the detector is connected to the driving mechanism.

[0022] As a further improvement of the above technical solution, the eccentric shaft includes a rotor segment and an eccentric segment connected in sequence along the axial direction, and the eccentric member is provided on the outer periphery of the eccentric segment;

[0023] The driving mechanism includes a conductive magnet group and a stator coil, wherein the conductive magnet group is fixedly sleeved on the outer periphery of the rotor segment, and the stator coil is fixedly sleeved on the inner periphery of the outer sleeve, and the positions of the stator coil and the conductive magnet group are correspondingly arranged;

[0024] The insulating support structure includes at least two bearing groups, which are spaced apart along the axial direction of the eccentric shaft. The bearing group includes a bearing body and an insulating sleeve that are fitted together.

[0025] In addition, the present invention also provides a method for using a concrete vibrator, which is applicable to the concrete vibrator. The method comprises:

[0026] Controlled extension of the vibrator into the concrete;

[0027] Controlling the driving mechanism to drive the eccentric shaft to rotate so as to vibrate the concrete;

[0028] detecting the real-time current of the detection electrical circuit;

[0029] When the real-time current reaches the preset water-wading current, it is determined that the two metal probes in the concrete are conductive, and the water immersion sensor is triggered to generate a water-wading current signal, and the driving mechanism is controlled to stop running;

[0030] The vibrator is controlled to extend into other different positions of the concrete to vibrate the concrete until the driving mechanism stops running, so as to achieve comprehensive vibration of the concrete in the construction area.

[0031] Other features and advantages of the present invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0033] Figure 1 is a cross-sectional view of an embodiment of the concrete vibrator provided by the present invention;

[0034] Figure 2 yes Figure 1 A partial enlarged view of part A;

[0035] Figure 3 This is an axial schematic diagram of the left end of an embodiment of the end cover provided by the present invention;

[0036] Figure 4 yes Figure 1 A partial enlarged view of part B;

[0037] Figure 5 This is a flow chart of an embodiment of a method for using the concrete vibrator provided by the present invention;

[0038] Figure Number:

[0039] Housing assembly 100; outer sleeve 110; insulating tube 120; end plug 130; first electrical contact 131; first electrical contact ring 132; first groove 133; first elastic member 134; mounting groove 135; first electrical connector 136; end cap 140; first metal ring 141; second metal ring 142; first conductive strip 143; second conductive strip 144; connector base 150; second electrical contact 151; second electrical contact ring 152; second groove 153; second elastic member 154; insertion groove 155; second electrical connector 156; third electrical connector 157;

[0040] Vibration assembly 200; eccentric shaft 210; rotor segment 211; eccentric segment 212; eccentric member 220; drive mechanism 230; conductive magnet assembly 231; stator coil 232;

[0041] Water sensor 310; metal probe 311; first electrical connector 312; second electrical connector 313;

[0042] Detection module 320; electrical socket 321; third electrical connector 322; fourth electrical connector 323; fifth electrical connector 324;

[0043] Bearing assembly 400; bearing body 410; insulating sleeve 420. DETAILED DESCRIPTION

[0044] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0045] In the description of the present invention, it should be understood that descriptions involving orientation, such as the orientation or positional relationship indicated by up, down, etc., are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0046] In the description of the present invention, "a plurality" refers to more than two. The use of "first" or "second" is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of the indicated technical features, or implicitly indicating the order of the indicated technical features.

[0047] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0048] The technical solutions of the present invention will be described clearly and completely below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of the present invention, not all embodiments.

[0049] At present, in the field of concrete pouring, whether the concrete vibration has met the standard is generally evaluated by the moisture content inside the concrete. When the concrete is vibrated until the water content inside reaches the set value, it is proved that the vibration is completed. However, in actual operation, if the concrete is vibrated excessively, water will appear inside the concrete, affecting the density, strength and durability of the concrete. This requires a high level of experience from the operator. The existing technology is difficult to detect the time and position of water in the concrete in real time and accurately, making it difficult to effectively control the vibrator to improve the effect of concrete vibration.

[0050] In addition, although there are some multifunctional vibrators on the market that can detect concrete density, etc., existing multifunctional vibrators generally have wires installed inside to connect the detection sensor with the outside. Since the vibrator generates vibration by rotation, the internal space is difficult to accommodate the passage of the wires. If a wire is installed, the vibrator as a whole will become eccentric, which will affect the vibration of the vibrator in the circumferential direction, causing the vibrator to shift to one side during operation. Some also drill holes in the eccentric shaft 210 or the outer sleeve 110, which will reduce the structural strength of the eccentric shaft 210 and the outer sleeve 110, affecting the life of the vibrator. In addition, the processing technology requirements are very high, and it is difficult to ensure accuracy.

[0051] Therefore, existing vibrators have problems such as unreasonable structural layout, difficulty in real-time and accurate detection of the time and location of concrete wading, and difficulty in design. The present invention proposes a concrete vibrator with detection to solve the above problems.

[0052] like Figures 1 to 4 As shown, the concrete vibrator of the present invention is made into the following embodiments:

[0053] The concrete vibrator of this embodiment includes: a housing assembly 100 , a vibration assembly 200 and a detection assembly.

[0054] like Figure 1 As shown, the housing assembly 100 includes an outer sleeve 110 and an insulating tube 120. The outer sleeve 110 is a hollow tube structure and a conductive component. In order to clearly describe the positional relationship between the various components, this embodiment limits the outer sleeve 110 to extend in the left and right directions. In some other embodiments, the outer sleeve 110 can be extended in other directions.

[0055] The insulating tube 120 is fixedly mounted on the outer circumference of the outer sleeve 110 to achieve insulation isolation between the outer sleeve 110 and the external concrete. The insulating tube 120 of this embodiment is made of plastic material and has good insulation performance.

[0056] In some embodiments, the insulating tube 120 is a soft component. During use, the outer periphery of the outer sleeve 110 contacts the cast steel bars through the insulating tube 120, which can reduce noise generation compared to existing rigid resistance.

[0057] The vibration assembly 200 of this embodiment includes an eccentric shaft 210 rotatably mounted in an outer sleeve 110, an eccentric piece 220 eccentrically arranged on the outer periphery of the eccentric shaft 210, and a driving mechanism 230 transmission-connected to the eccentric shaft 210. The eccentric shaft 210 of this embodiment is coaxially arranged in the outer sleeve 110, the eccentric shaft 210 is a conductive component, and an insulating support structure is provided between the eccentric shaft 210 and the outer sleeve 110. The insulating support structure is used to achieve insulation isolation between the eccentric shaft 210 and the outer sleeve 110, and at the same time support the eccentric shaft 210.

[0058] The driving mechanism 230 is used to drive the eccentric shaft 210 to rotate. When in use, the driving mechanism 230 drives the eccentric shaft 210 to rotate, thereby driving the eccentric member 220 to rotate eccentrically, causing the vibrator to generate circular vibration, thereby achieving a vibrating effect on the concrete.

[0059] The detection component of the present invention includes a water immersion sensor 310 and a detection module 320. In this embodiment, the water immersion sensor 310 is arranged at the left end of the outer sleeve 110, and the detection module 320 is connected to the right end of the outer sleeve 110. In some other embodiments, the positions of the water immersion sensor 310 and the detection module 320 can be swapped.

[0060] The water immersion sensor 310 of this embodiment is provided with two metal probes 311, a first electrical connector 312 and a second electrical connector 313. The first electrical connector 312 and the second electrical connector 313 are used for inputting the working current and outputting the signal of the water immersion sensor 310, wherein the first electrical connector 312 is electrically contacted with the left end of the outer sleeve 110, and the second electrical connector 313 is electrically contacted with the left end of the eccentric shaft 210.

[0061] The detection module 320 is provided with two electrodes, which are respectively electrically contacted with the right end of the outer sleeve 110 and the right end of the eccentric shaft 210, so that a detection electrical circuit is formed between the water immersion sensor 310, the eccentric shaft 210, the detection module 320 and the outer sleeve 110, and the detection module 320 is connected to the drive mechanism 230 for signal.

[0062] The two metal probes 311 of this embodiment are used to contact with water in the concrete and conduct, so as to trigger the water immersion sensor 310 to generate a water-crossing current signal. The detection module 320 is used to detect the water-crossing current signal to generate a stop signal to control the driving mechanism 230 to stop running.

[0063] Under normal operating conditions, there will be a working current in the detection electrical circuit to keep the water immersion sensor 310 running. When the water immersion sensor 310 is triggered to generate a water-related current signal, the current in the detection electrical circuit changes. The detection module 320 generates a shutdown signal to control the drive mechanism 230 to stop running based on the change in current. It can be understood that the detection module 320 is used to monitor the current changes in the detection electrical circuit in real time, and also provides the rated working current to the water immersion sensor 310.

[0064] When vibrating concrete, the left end of the vibrator will extend into the concrete, causing the two metal probes 311 to extend into the concrete. The two metal probes 311 on the water immersion sensor 310 are used to detect water in the concrete. When the concrete is vibrated to the critical point of water immersion, a certain amount of water will be generated in the concrete. At this time, the two metal probes 311 will come into contact with the water in the concrete and become conductive, triggering the water immersion sensor 310 to generate a water immersion current signal. After detecting the water immersion current signal of the detection circuit, the detection module 320 generates a shutdown signal to control the drive mechanism 230 to stop operating. This can timely prevent excessive local vibration of the concrete and effectively avoid the occurrence of water immersion.

[0065] The detection electrical circuit in the present invention is formed between the water immersion sensor 310, the eccentric shaft 210, the detection module 320 and the outer sleeve 110. There is no need for large-span wiring inside the vibrator, and the water immersion sensor 310 and the detection module 320 are respectively connected to the two ends of the outer sleeve 110, so that the exciting force generated by the vibrator in the circumferential direction is uniform. During the vibration operation, the vibrator will not deviate to one side, which also reduces the difficulty of design. It is sufficient to optimize the existing vibrator structure. There is no need to drill the eccentric shaft 210 and the outer sleeve 110. It is only necessary to set the insulating tube 120 on the outer periphery of the outer sleeve 110 and set an insulating support structure that can achieve insulation isolation between the eccentric shaft 210 and the outer sleeve 110 to form a detection electrical circuit.

[0066] Regarding the installation method of the water immersion sensor 310, such as Figure 2As shown, the left end sealing sleeve of the outer sleeve 110 of this embodiment is provided with an end plug 130, and the end plug 130 is an insulating component. The water immersion sensor 310 is detachably installed on the end of the end plug 130 facing away from the eccentric shaft 210, and the end face of the end plug 130 facing the eccentric shaft 210 is provided with a first electrical contact 131, and the first electrical contact 131 is in electrical contact with the end face of the eccentric shaft 210. The outer periphery of the end of the end plug 130 facing the eccentric shaft 210 is provided with a first electrical contact ring 132, and the first electrical contact ring 132 is in electrical contact with the inner circumferential wall of the outer sleeve 110. The first electrical contact 131 and the first electrical contact ring 132 are electrically connected to the second electrical connector 313 and the first electrical connector 312 respectively.

[0067] The end plug 130 of this embodiment can seal the left end of the outer sleeve 110. During assembly, the end plug 130 is mounted on the left end of the outer sleeve 110, so that the first electrical contact 131 is in electrical contact with the left end face of the eccentric shaft 210, and the first electrical contact ring 132 is in electrical contact with the inner circumferential wall of the outer sleeve 110. Then, the water immersion sensor 310 is installed on the left end of the end plug 130, and the first electrical contact 131 and the first electrical contact ring 132 are electrically connected to the second electrical connector 313 and the first electrical connector 312 respectively. When repairing or replacing the water immersion sensor 310, it is only necessary to remove the water immersion sensor 310 from the end plug 130, which is convenient to operate and ensures the sealing of the outer sleeve 110.

[0068] Furthermore, the end surface of the end plug 130 of this embodiment facing one end of the eccentric shaft 210 is recessed with a first groove 133 extending in the axial direction, and the first electrical contact 131 is slidably installed in the first groove 133 along the axial direction. The first groove 133 is provided with a first elastic member 134 acting on the first electrical contact 131, and the first elastic member 134 is used to provide the first electrical contact 131 with an elastic force to abut against the end surface of the eccentric shaft 210. Since the eccentric shaft 210 rotates during operation, the first electrical contact 131 will wear out over time, resulting in a gap between the first electrical contact 131 and the eccentric shaft 210. This embodiment uses the first elastic member 134 to keep the first electrical contact 131 in elastic contact with the end surface of the eccentric shaft 210, thereby ensuring the stability of the abutment between the two and avoiding the phenomenon of short circuit.

[0069] In addition, one end of the end plug 130 facing the eccentric shaft 210 is threadedly connected to the inner circumferential wall of the outer sleeve 110, which facilitates disassembly and assembly. At the same time, the relative position of the end plug 130 and the eccentric shaft 210 in the axial direction can also be adjusted to adjust the magnitude of the elastic force provided by the first elastic member 134 to the first electrical contact 131. The first elastic member 134 of this embodiment is a spring, and the two ends of the first elastic member 134 respectively abut against the bottom of the first groove 133 and the left end of the first electrical contact 131.

[0070] Furthermore, if Figure 2As shown, a mounting groove 135 is provided at one end of the end plug 130 facing away from the eccentric shaft 210. The water sensor 310 is detachably inserted into the mounting groove 135. Two first electrical connectors 136 are provided at the bottom of the mounting groove 135. The first electrical connector 312 and the second electrical connector 313 are respectively plugged into the two first electrical connectors 136. The two first electrical connectors 136 are respectively electrically connected to the first electrical contact 131 and the first electrical contact ring 132 via conductive wires to facilitate the installation of the water sensor 310.

[0071] In addition, in order to improve the service life of the water immersion sensor 310 and prevent the water immersion sensor 310 from directly contacting the concrete, the end plug 130 of this embodiment is detachably provided with an end cover 140 at the end facing away from the eccentric shaft 210. The end cover 140 is also an insulating component. The installation groove 135 is sealed by the end cover 140 to isolate the water immersion sensor 310 from the concrete.

[0072] At the same time, the left end of the end cover 140 of this embodiment is provided with a first metal ring 141 and a second metal ring 142, both of which are annular. Figure 2 and Figure 3 As shown, the outer diameter of the first metal ring 141 is smaller than the inner diameter of the second metal ring 142, and the first metal ring 141 and the second metal ring 142 are coaxially arranged on the left end face of the end cover 140, and the first metal ring 141 and the second metal ring 142 are spaced apart from the center of the end cover 140 outward to ensure the uniformity of the weight distribution of the vibrator in the circumferential direction.

[0073] Inside the end cap 140, a first conductive strip 143 is provided, connected between the first metal ring 141 and one of the metal probes 311, and a second conductive strip 144 is provided, connected between the second metal ring 142 and the other metal probe 311. It is understood that the two metal probes 311 are in contact with water in the external concrete through the first metal ring 141 and the second metal ring 142, respectively, to achieve conduction. This prevents the metal probes 311 from directly contacting the concrete, thereby increasing the service life of the water immersion sensor 310. At the same time, the first metal ring 141 and the second metal ring 142 also expand the contact area with the concrete and the contact area with water, thereby improving the detection sensitivity.

[0074] The left end of the end cover 140 of this embodiment is a tapered structure to facilitate the insertion of the vibrator into the concrete.

[0075] Regarding the connection method of the detection module 320, such as Figure 4As shown, the right end sealing sleeve of the outer sleeve 110 of this embodiment is provided with a connector head seat 150, which is also an insulating component. The end face of the connector head seat 150 facing the eccentric shaft 210 is provided with a second electrical contact 151, and the second electrical contact 151 is electrically contacted with the end face of the eccentric shaft 210. The outer periphery of the connector head seat 150 facing the eccentric shaft 210 is provided with a second electrical contact ring 152, and the second electrical contact ring 152 is electrically contacted with the inner circumferential wall of the outer sleeve 110. The second electrical contact ring 152 and the second electrical contact 151 are respectively electrically connected to the two electrodes of the detection module 320. The detection module 320 is electrically connected to the outer sleeve 110 and the eccentric shaft 210 through the second electrical contact ring 152 and the second electrical contact 151. At the same time, the connector head seat 150 also plays a role in sealing the outer sleeve 110.

[0076] Furthermore, if Figure 4 As shown, the end surface of the connector seat 150 facing one end of the eccentric shaft 210 is recessed with a second groove 153 extending along the axial direction, and the second electrical contact 151 is slidably installed in the second groove 153 along the axial direction. The second groove 153 is provided with a second elastic member 154 acting on the second electrical contact 151. The second elastic member 154 is used to provide the second electrical contact 151 with an elastic force to abut against the end surface of the eccentric shaft 210. The setting of the second elastic member 154 is the same as that of the first elastic member 134. In this embodiment, the second elastic member 154 is used to keep the second electrical contact 151 in elastic contact with the end surface of the eccentric shaft 210, thereby ensuring the stability of the abutment between the two and avoiding the phenomenon of short circuit.

[0077] At the same time, one end of the connector seat 150 facing the eccentric shaft 210 is threadedly connected to the inner circumferential wall of the outer sleeve 110 to facilitate disassembly and assembly. At the same time, the relative position of the connector seat 150 and the eccentric shaft 210 in the axial direction can also be adjusted to adjust the magnitude of the elastic force provided by the second elastic member 154 to the second electrical contact 151. The second elastic member 154 of this embodiment adopts a spring, and the two ends of the second elastic member 154 respectively abut against the bottom of the second groove 153 and the right end of the second electrical contact 151.

[0078] Furthermore, if Figure 4 As shown, the connector base 150 of this embodiment has an inserting groove 155 at one end facing away from the eccentric shaft 210 , and two second electrical lugs 156 are provided at the bottom of the inserting groove 155 . The two second electrical lugs 156 are electrically connected to the second electrical contact 151 and the second electrical contact ring 152 through conductive wires, respectively.

[0079] The detection module 320 includes an electrical socket 321 and a detector (not shown) connected by wires. The electrical socket 321 is detachably inserted into the insertion groove 155. The electrical socket 321 is provided with a third electrical connector 322 and a fourth electrical connector 323, which are respectively plugged into the two second electrical ears 156. The detector is electrically connected to the third electrical connector 322 and the fourth electrical connector 323, respectively. The detector is connected to the drive mechanism 230. The detector is electrically connected to the two second electrical ears 156 in the connector base 150 through the electrical socket 321. The detector is used to provide the rated operating current and monitor the current of the detection circuit to control the start and stop of the drive mechanism 230.

[0080] Regarding the structural form of the driving mechanism 230, in some other embodiments, the driving mechanism 230 can be set externally, that is, the driving mechanism 230 is connected to the eccentric shaft 210 through an existing transmission hose. If the vibrator needs to be extended into a deeper position in the concrete, the efficiency of power transmission will be affected.

[0081] The driving mechanism 230 of this embodiment is built-in, specifically: Figure 1 As shown, the eccentric shaft 210 of this embodiment includes a rotor segment 211 and an eccentric segment 212 sequentially connected along the axial direction, and the eccentric piece 220 is provided on the outer periphery of the eccentric segment 212 .

[0082] The driving mechanism 230 includes a conductive magnet group 231 and a stator coil 232. The conductive magnet group 231 is fixedly mounted on the outer periphery of the rotor segment 211, and the stator coil 232 is fixedly mounted on the inner periphery of the outer sleeve 110. The stator coil 232 and the conductive magnet group 231 are arranged in corresponding positions, and the rotor segment 211 is equivalent to the rotor shaft. When the stator coil 232 is energized, the conductive magnet group 231 on the rotor segment 211 drives the entire eccentric shaft 210 to rotate. At this time, the motor is installed internally, which is convenient to use. The vibrator only needs to be connected to the power supply equipment.

[0083] The connector base 150 of this embodiment is provided with at least one third electrical connector 157 disposed within the insertion groove 155 , and the electrical socket 321 is provided with a fifth electrical connector 324 that plugs into the third electrical connector 157 . The fifth electrical connector 324 is connected to an external power supply device, while the third electrical connector 157 is connected to the stator coil 232 via a power supply wire. To reduce the length of the power supply wire, the rotor segment 211 of this embodiment is located near one end of the connector base 150 . After the electrical socket 321 is inserted into the insertion groove 155 , an electrical connection between the stator coil 232 and the external power supply device can be achieved.

[0084] Among them, such as Figure 1As shown, the insulating support structure includes at least two bearing groups 400. In this embodiment, three bearing groups 400 are provided, wherein two bearing groups 400 are respectively provided at the left and right ends of the eccentric shaft 210, and the other bearing group 400 is provided between the rotor segment 211 and the eccentric segment 212 to improve the stability of the support.

[0085] like Figure 2 and Figure 4 As shown, the bearing assembly 400 of this embodiment includes a bearing body 410 and an insulating sleeve 420 that fit together. The insulating sleeve 420 is used to achieve insulation isolation between the eccentric shaft 210 and the outer sleeve 110.

[0086] In addition, the present invention also provides a method for using a concrete vibrator, which is applicable to the above-mentioned concrete vibrator, such as Figure 5 As shown, the method of using this embodiment includes:

[0087] Step S100: controlling the vibrator to extend into the concrete;

[0088] Step S200: controlling the driving mechanism 230 to drive the eccentric shaft 210 to rotate so as to vibrate the concrete;

[0089] Step S300: detecting the real-time current of the detection circuit;

[0090] Step S400: When the real-time current reaches the preset water-fording current, it is determined that the two metal probes 311 in the concrete are conducting, and the water immersion sensor 310 is triggered to generate a water-fording current signal, and the driving mechanism 230 is controlled to stop running;

[0091] Step S500: Control the vibrator to extend into other different positions of the concrete and vibrate the concrete until the driving mechanism 230 stops running, so as to achieve comprehensive vibration of the concrete in the construction area.

[0092] In step S200 , when the stator coil 232 is energized, the entire eccentric shaft 210 is driven to rotate by the conductive magnet group 231 on the rotor segment 211 .

[0093] In step S300 , the detector monitors the current change in the detection circuit in real time, and also provides the rated working current to the water immersion sensor 310 .

[0094] In step S400, the water in the concrete brings the first metal ring 141 and the second metal ring 142 into contact, causing the two metal probes 311 to be conductive. After the water immersion sensor 310 is triggered to generate a water-related current signal, the current in the detection circuit changes. The detection module 320 generates a shutdown signal to control the driving mechanism 230 to stop operating based on the change in current.

[0095] Throughout this specification, references to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" indicate that a particular feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative uses of these terms do not necessarily refer to the same embodiment or example. Furthermore, the described specific features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

[0096] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the scope of the present invention.

Claims

1. A concrete vibrator with detection, characterized in that, include: The housing assembly includes an outer sleeve and an insulating tube, wherein the insulating tube is fixedly sleeved on the outer circumference of the outer sleeve, and the outer sleeve is a conductive component; A vibration assembly includes an eccentric shaft rotatably sleeved within the outer sleeve, an eccentric member eccentrically disposed on the outer periphery of the eccentric shaft, and a drive mechanism, wherein the eccentric shaft is a conductive member, an insulating support structure is provided between the eccentric shaft and the outer sleeve to achieve insulation isolation, and the drive mechanism is used to drive the eccentric shaft to rotate; A detection component includes a water immersion sensor and a detection module, wherein the water immersion sensor is provided at one end of the outer sleeve, and the detection module is provided at the other end of the outer sleeve. The water immersion sensor is provided with two metal probes, a first electrical connector, and a second electrical connector. The first electrical connector is in electrical contact with an end of the outer sleeve close to the water immersion sensor, and the second electrical connector is in electrical contact with an end of the eccentric shaft close to the water immersion sensor. Two electrodes of the detection module are respectively in electrical contact with an end of the outer sleeve away from the water immersion sensor and an end of the eccentric shaft away from the water immersion sensor, so that a detection electrical circuit is formed between the water immersion sensor, the eccentric shaft, the detection module, and the outer sleeve. The two metal probes are used to contact water in concrete. The detection module is configured to determine that the two metal probes in the concrete are conductive when the real-time current of the detection electrical circuit reaches a preset water wading current, and trigger the water wading sensor to generate a water wading current signal for controlling the drive mechanism to stop operating. The sealing sleeve at one end of the outer sleeve away from the detection module is provided with an end plug as an insulating component, the water immersion sensor is detachably mounted on the end of the end plug facing away from the eccentric shaft, the end face of the end plug facing the end of the eccentric shaft is provided with a first electrical contact, the first electrical contact is in electrical contact with the end face of the eccentric shaft, the outer periphery of the end of the end plug facing the eccentric shaft is provided with a first electrical contact ring, the first electrical contact ring is in electrical contact with the inner circumferential wall of the outer sleeve, the first electrical contact and the first electrical contact ring are electrically connected to the second electrical connector and the first electrical connector respectively.

2. The concrete vibrator according to claim 1, characterized in that: The end surface of the end plug facing one end of the eccentric shaft is provided with a first groove extending in the axial direction, the first electrical contact is slidably mounted in the first groove, and the first groove is provided with a first elastic member acting on the first electrical contact, the first elastic member being used to provide an elastic force for the first electrical contact to abut against the end surface of the eccentric shaft; One end of the end plug facing the eccentric shaft is threadedly connected to the inner circumferential wall of the outer sleeve.

3. The concrete vibrator according to claim 2, characterized in that: The end of the end plug facing away from the eccentric shaft is provided with a mounting groove, and the water immersion sensor is detachably inserted into the mounting groove. The bottom of the mounting groove is provided with two first electrical ears, and the first electrical connector and the second electrical connector are respectively plugged into the two first electrical ears, and the two first electrical ears are respectively electrically connected to the first electrical contact and the first electrical contact ring.

4. The concrete vibrator according to claim 3, characterized in that: The end plug is detachably provided with an end cap at one end facing away from the eccentric shaft, and the end cap is an insulating component. The end cap away from the water immersion sensor is provided with a first metal ring and a second metal ring, both of which are annular. The outer diameter of the first metal ring is smaller than the inner diameter of the second metal ring. The first metal ring and the second metal ring are coaxially arranged on the end surface of the end cap away from the water immersion sensor. The first metal ring and the second metal ring are spaced apart from the center of the end cap outward. The interior of the end cap is provided with a first conductive strip and a second conductive strip. The first conductive strip is between the first metal ring and one of the metal probes, and the second conductive strip is connected between the second metal ring and the other metal probe.

5. The concrete vibrator according to claim 1, characterized in that: A connector seat is provided on the sealing sleeve at one end of the outer sleeve away from the water immersion sensor. The connector seat is an insulating component. A second electric contact is provided on the end face of the connector seat facing one end of the eccentric shaft. The second electric contact is in electrical contact with the end face of the eccentric shaft. A second electric contact ring is provided on the outer periphery of the connector seat facing one end of the eccentric shaft. The second electric contact ring is in electrical contact with the inner circumferential wall of the outer sleeve. The second electric contact ring and the second electric contact are respectively electrically connected to the two electrodes of the detection module.

6. The concrete vibrator according to claim 5, characterized in that: The end surface of the connector seat facing one end of the eccentric shaft is provided with a second groove extending in the axial direction, the second electrical contact is slidably mounted in the second groove, and the second groove is provided with a second elastic member acting on the second electrical contact, the second elastic member being used to provide an elastic force for the second electrical contact to abut against the end surface of the eccentric shaft; One end of the connector seat facing the eccentric shaft is threadedly connected to the inner circumferential wall of the outer sleeve.

7. The concrete vibrator according to claim 6, characterized in that: The connector base has an inserting groove at one end facing away from the eccentric shaft, and two second electrical lugs are provided at the bottom of the inserting groove, and the two second electrical lugs are electrically connected to the second electrical contact and the second electrical contact ring respectively; The detection module includes an electrical socket and a detector connected by a wire. The electrical socket is detachably inserted into the plug-in groove. The electrical socket is provided with a third electrical connector and a fourth electrical connector respectively plugged into the two second electrical connector ears. The detector is electrically connected to the third electrical connector and the fourth electrical connector respectively, and the detector is connected to the driving mechanism.

8. The concrete vibrator according to any one of claims 1 to 7, characterized in that: The eccentric shaft comprises a rotor section and an eccentric section connected in sequence along the axial direction, and the eccentric member is arranged on the outer periphery of the eccentric section; The driving mechanism includes a conductive magnet group and a stator coil, wherein the conductive magnet group is fixedly sleeved on the outer periphery of the rotor segment, and the stator coil is fixedly sleeved on the inner periphery of the outer sleeve, and the positions of the stator coil and the conductive magnet group are correspondingly arranged; The insulating support structure includes at least two bearing groups, which are spaced apart along the axial direction of the eccentric shaft. The bearing group includes a bearing body and an insulating sleeve that are fitted together.

9. A method for using a concrete vibrator, characterized in that: Applicable to the concrete vibrator according to any one of claims 1 to 8, the method of use comprising: Controlled extension of the vibrator into the concrete; Controlling the driving mechanism to drive the eccentric shaft to rotate so as to vibrate the concrete; detecting the real-time current of the detection electrical circuit; When the real-time current reaches the preset water-wading current, it is determined that the two metal probes in the concrete are conductive, and the water immersion sensor is triggered to generate a water-wading current signal, and the driving mechanism is controlled to stop running; The vibrator is controlled to extend into other different positions of the concrete to vibrate the concrete until the driving mechanism stops running, so as to achieve comprehensive vibration of the concrete in the construction area.

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