Length-adjustable chain type displacement meter

Abstract

The utility model relates to a chain type displacement meter with an adjustable length. The chain type displacement meter comprises a displacement meter main body, a lightning protection controller and a traction heavy hammer, the displacement meter main body comprises more than two detection units which are connected in series; the lightning protection controller is arranged in the detection unit at the head end position, and the traction heavy hammer is arranged at the bottom of the detection unit at the tail end position; each of the more than two detection units comprises a pipe body, a sensor, a cable, an aviation plug and an aviation socket; the cable penetrates through the pipe body, the two ends of the cable extend out of the pipe body, the aviation plug and the aviation socket are arranged at the two ends of the cable respectively, and the sensor is arranged on the cable and located in a cavity of the pipe body. Every two adjacent detection units are electrically connected through plugging between the aviation plug and the aviation socket. A worker can adjust the length of the displacement meter according to actual requirements, and the detection units are sequentially connected through the aviation plugs and the sockets by increasing or decreasing the corresponding number of the detection units.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of engineering detection and measurement technology, and particularly relates to a length-adjustable chain displacement meter. BACKGROUND

[0002] In many practical engineering application scenarios such as geotechnical engineering and geological disaster monitoring, in order to comprehensively and accurately obtain underground information and ensure the safety and stability of the project, an array inclinometer needs to be installed in the inclinometer pipe of a borehole; in actual engineering scenarios, due to complex and diverse geological conditions of the site and different drilling depths, since the adjacent inclinometers in the existing array displacement meter are fixedly connected and the length thereof cannot be flexibly adjusted according to actual measurement requirements, it is necessary to frequently replace inclinometers of different lengths in actual application, thereby increasing the monitoring cost. SUMMARY

[0003] Therefore, the present application provides a length-adjustable chain displacement meter, which comprises a displacement meter body, a lightning protection controller and a traction weight.

[0004] The displacement meter body comprises two or more detection units arranged in series; the lightning protection controller is arranged in the detection unit at the first end position, and the traction weight is arranged at the bottom of the detection unit at the last end position.

[0005] Each of the two or more detection units comprises a pipe body, a sensor, a cable, an aviation plug and an aviation socket.

[0006] The cable extends through the pipe body and has two ends extending to the outside of the pipe body, the aviation plug and the aviation socket are arranged at the two ends of the cable respectively, and the sensor is arranged on the cable and located in the cavity of the pipe body.

[0007] The electrical connection between the two adjacent detection units is achieved through the plug connection between the aviation plug and the aviation socket.

[0008] In a possible implementation manner, a limiting steel wire is further included; a buckle member is arranged on the outer side wall of each pipe body, and the limiting steel wire extends through the buckle members along the length direction of the displacement meter body.

[0009] In a possible implementation manner, a fixing assembly is arranged on the limiting steel wire; and the limiting steel wire is connected with the pipe body through the fixing assembly.

[0010] In a possible implementation manner, a fixing disc is further included; one end of the limiting steel wire is connected with the fixing disc; and a cable passage is arranged on the fixing disc, so that the cable of an external power supply passes through the cable passage and is connected with the detection unit at the first end position.

[0011] In a possible implementation, the sliding wheels are arranged on the outer side wall of the pipe body.

[0012] In a possible implementation, the sliding wheels are arranged on the outer side wall of the pipe body.

[0013] In a possible implementation, the sliding wheels are arranged on the outer side wall of the pipe body.

[0014] In a possible implementation, the sliding wheels are arranged on the outer side wall of the pipe body.

[0015] Advantages of the present application

[0016] The present application sets up the aviation plug and the aviation socket, when encountering different depths of drill holes, the length of the displacement meter can be adjusted according to actual needs, if the length of the displacement meter needs to be increased, the corresponding number of detection units are added, and they are connected in sequence through the aviation plug and the socket, the length of the displacement meter is adjusted flexibly by increasing or decreasing the number of detection units, the displacement meter does not need to be frequently replaced with different lengths, the adaptability and use flexibility of the displacement meter are significantly improved, and the detection cost is reduced; adjacent detection units are connected in a plug-in manner through the aviation plug and the aviation socket, which not only ensures the stability of mechanical connection between the detection units, but also ensures the reliability of circuit conduction, so that data can be accurately and timely transmitted between the detection units, and the accuracy and stability of measurement data are improved.

[0017] Other features and aspects of the present application will become apparent from the following detailed description of exemplary embodiments with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments, features, and aspects of the present application and serve to explain the principles of the present application.

[0019] Figure 1 A main structure diagram of a chain displacement meter is shown;

[0020] Figure 2 A structure diagram of an aviation plug is shown;

[0021] Figure 3 A structure diagram of an aviation socket is shown;

[0022] Figure 4 A front view of a detection unit is shown;

[0023] Figure 5 A rear view of the detection unit is shown.

[0024] Detection unit - 100; cable - 110; tube body - 140; first direction indicator - 141; second direction indicator - 142; aviation plug - 120; first shell - 121; male pin - 122; guide part - 123; nut - 124; aviation socket - 130; second shell - 131; female jack - 132; fixing part - 133; buckle - 210; limiting steel wire - 220; fixing assembly - 230; traction weight - 310; fixing disc - 320; sliding wheel - 410; folding pulley - 420. DETAILED DESCRIPTION

[0025] Various exemplary embodiments, features, and aspects of the present application will be described herein below with reference to the accompanying drawings. The same reference numbers in different drawings represent the same or similar elements. Although various aspects of the embodiments are illustrated in the drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

[0026] It should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application or simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0027] In addition, the terms "first" and "second" are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0028] The word "exemplary" is used herein in the sense of being an example, instance, or illustration. Any implementation described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations.

[0029] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented without certain specific details. In some instances, methods, means, components, and circuits well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0030] This application proposes a chain displacement meter with adjustable length, such as Figures 1 to 5 As shown, it includes: a displacement gauge body, a lightning protection controller, and a traction weight 310; the displacement gauge body includes two or more detection units 100 arranged in series, the lightning protection controller is located inside the detection unit 100 at the first end, and the traction weight 310 is located at the bottom of the detection unit 100 at the last end; each of the two or more detection units 100 includes: a tube body 140, a sensor, a cable 110, an aviation plug 120, and an aviation socket 130; the cable 110 passes through the tube body 140 and extends to the outside of the tube body 140 at both ends, the aviation plug 120 and the aviation socket 130 are respectively located at both ends of the cable 110, and the sensor is located on the cable 110 and inside the cavity of the tube body 140; each pair of adjacent detection units 100 are electrically connected by the insertion of the aviation plug 120 and the aviation socket 130.

[0031] It should be noted that the length-adjustable chain displacement meter of the present application is suitable for being installed in the inclinometer casing, and the plurality of detection units 100 arranged in series can be flexibly combined in terms of the number of detection units 100 according to actual measurement requirements, so as to realize the requirements of different measurement lengths and improve the adaptability and flexibility of the displacement meter; the lightning protection controller is suitable for avoiding damage to the displacement meter caused by lightning strikes and improving the safety and reliability of the displacement meter; the traction weight 310 utilizes its own gravity to keep the plurality of detection units 100 in tension, avoiding the bending, winding or uneven stretching of the cable 110 of the detection unit 100 due to relaxation, ensuring the accuracy of detection of the detection unit 100, and the pipe body 140 is suitable for providing a mounting basis for the sensor and the cable 110; the sensor is suitable for detecting the position change of the detection unit 100 and converting it into an electrical signal for subsequent processing and analysis; the cable 110 is suitable for providing a channel for power transmission and signal transmission for the sensor, ensuring the circuit connection of the overall displacement meter, so that the electrical signal generated by the detection unit 100 can be transmitted between the detection units 100; the aviation plug 120 and the aviation socket 130 cooperate with each other to realize the circuit conduction and signal transmission channel communication between adjacent detection units 100, reduce the interference and loss of signal transmission, and at the same time, the aviation plug 120 and the aviation socket 130 are fixedly connected with the adjacent two detection units 100, and the plug-in design of the aviation plug 120 and the aviation socket 130 enables the staff to assemble or disassemble the detection units 100 according to actual measurement requirements, so as to flexibly adjust the length of the displacement meter and improve the convenience of use of the displacement meter.

[0032] The present application is provided with the aviation plug 120 and the aviation socket 130, when encountering drill holes of different depths, the staff can adjust the length of the displacement meter according to actual requirements, if the length of the displacement meter needs to be increased, only the corresponding number of detection units 100 need to be added and connected in sequence through the aviation plug 120 and the socket, the length of the displacement meter is flexibly adjusted by increasing or decreasing the number of detection units 100, without the need to frequently replace displacement meters of different lengths, which significantly improves the adaptability and use flexibility of the displacement meter and reduces the detection cost; the aviation plug 120 and the aviation socket 130 are used to connect adjacent detection units 100, which not only ensures the stability of the mechanical connection between the detection units 100, but also ensures the reliability of the circuit conduction, so that data can be accurately and timely transmitted between the detection units 100, improving the accuracy and stability of the measurement data.

[0033] Further, as Figure 4As shown, the outer side wall of the pipe body 140 is provided with a first pointing mark 141, which is suitable for providing guidance when the sensor is installed in the pipe body 140. The sensor is installed in the direction of the first pointing mark 141, and the first pointing mark 141 provides a clear and unified direction standard for the installation of the sensor, thereby ensuring that the installation direction of the sensor in each adjacent two monitoring units 100 remains consistent, which is conducive to improving the accuracy of measurement.

[0034] In a possible implementation manner, as shown in Figures 1 to 3 As shown, the aviation plug 120 includes a first housing 121, a male pin 122, and a first insulator; the first insulator is fixedly arranged in the first housing 121, the male pin 122 is fixedly installed on the first insulator and protrudes out of the first housing 121 at one end, and one end of the cable 110 protrudes into the first housing 121 and is fixedly connected with the male pin 122; the aviation socket 130 includes a second housing 131, a female socket 132, and a second insulator; the second insulator is fixedly arranged in the second housing 131, the female socket 132 is matched with the male pin 122, the female socket 132 is fixedly installed on the second insulator and protrudes out of the second housing 131 at one end, and the end of the cable 110 away from the male pin 122 penetrates through the second housing 131 and is fixedly connected with the female socket 132. By inserting the male pin 122 of the aviation plug 120 into the female socket 132 of the aviation socket 130, the circuit conduction and mechanical fixation of the adjacent two detection units 100 can be realized.

[0035] Further, the end of the first housing 121 away from the cable 110 is provided with a guide portion 123, the guide portion 123 is in a hollow columnar structure, the male pin 122 is located in the cavity of the guide portion 123, and the second housing 131 is correspondingly provided with a hollow columnar fixing portion 133, the female socket 132 is located in the cavity of the fixing portion 133, the fixing portion 133 is matched with the guide portion 123, and is suitable for inserting the guide portion 123 into the fixing portion 133, so that the male pin 122 of the aviation plug 120 is inserted into the female socket 132 of the aviation socket 130; a nut 124 is arranged around the guide portion 123, and the nut 124 can rotate on the guide portion 123, and correspondingly, an outer thread is arranged on the outer side wall of the fixing portion 133 and matched with the nut 124; when the guide portion 123 is inserted into the fixing portion 133, the nut 124 is screwed to realize the threaded connection between the nut 124 and the fixing portion 133, thereby realizing the fixation between the aviation plug 120 and the aviation socket 130.

[0036] In a possible implementation manner, as shown in Figure 1 , Figure 4As shown, the displacement meter further comprises a limiting steel wire 220; the outer side wall of each pipe body 140 is provided with a buckle 210, and the limiting steel wire 220 extends through the buckle 210 along the length direction of the displacement meter body; it should be noted that the limiting steel wire 220 extends along the length direction of the displacement meter body, and the limiting steel wire 220 is fixed on the outer side wall of the pipe body 140 through the buckle 210; the limiting steel wire 220 is suitable for limiting the distance between adjacent detection units 100, so as to ensure that the detection units 100 of the displacement meter maintain a proper distance.

[0037] Further, as shown in Figure 1 、 Figure 4 the main body of the buckle 210 is in a C-shaped structure, and the opening of the buckle 210 faces the pipe body 140; the side edge of the opening of the buckle 210 is fixedly connected with the outer side wall of the pipe body 140 to form a limiting cavity; a mounting slot is formed on the side wall away from the limiting cavity, and the mounting slot is in communication with the limiting cavity; when the limiting steel wire 220 is installed in the limiting cavity through the mounting slot, the buckle 210 will be elastically deformed to generate a radial pressure on the limiting steel wire 220, so as to clamp the limiting steel wire 220 in the limiting cavity; the buckle 210 fixes the limiting steel wire 220 through interference fit, so as to ensure that the adjacent detection units 100 maintain a proper distance and ensure the accuracy of the detection units 100.

[0038] Further, the edge profile of the mounting slot is in a wavy shape; when the limiting steel wire 220 is installed, the limiting steel wire 220 will be deformed according to the shape of the mounting slot due to its own toughness, so that the limiting steel wire 220 passes through the mounting slot in a special shape; when the limiting steel wire 220 enters the limiting cavity, it will restore to a straight line state due to its own elasticity; at this time, the buckle 210 contacts the limiting steel wire 220 and applies a reverse force to it, so as to prevent the limiting steel wire 220 from falling off from the mounting slot of the buckle 210.

[0039] Further, the buckle 210 is provided with two or more buckles 210, and the two or more buckles 210 are arranged at intervals along the length direction of the pipe body 140.

[0040] Further, the buckle 210 and the pipe body 140 are made of plastic, and the buckle 210 and the pipe body 140 are designed in one piece.

[0041] In a possible implementation, the limiting steel wire 220 is provided with a fixing assembly 230; the limiting steel wire 220 is connected with the pipe body 140 through the fixing assembly 230. It should be noted that the fixing assembly 230 comprises a connecting piece and a bolt; the connecting piece is fixedly sleeved on the limiting steel wire 220, a threaded hole is formed on the outer side wall of the pipe body 140, and the threaded hole is located between the two buckle pieces 210; one end of the bolt is threadedly connected with the threaded hole of the pipe body 140 through the connecting piece; the limiting steel wire 220 cooperates with the fixing assembly 230, thereby further limiting the distance between adjacent detection units 100, ensuring that the detection units 100 of the displacement meter maintain a proper spacing, and further enhancing the structural stability of the displacement meter as a whole.

[0042] Further, the fixing assembly 230 is provided with two or more fixing assemblies 230, and the two or more fixing assemblies 230 are arranged at intervals along the length direction of the limiting steel wire 220, and the number of the fixing assemblies 230 is the same as the number of the detection units 100.

[0043] In a possible implementation, the fixing assembly 230 is further provided with two or more fixing assemblies 230, and the two or more fixing assemblies 230 are arranged at intervals along the length direction of the limiting steel wire 220, and the number of the fixing assemblies 230 is the same as the number of the detection units 100.

[0044] In a possible implementation, the fixing assembly 230 is further provided with two or more fixing assemblies 230, and the two or more fixing assemblies 230 are arranged at intervals along the length direction of the limiting steel wire 220, and the number of the fixing assemblies 230 is the same as the number of the detection units 100.

[0045] Further, the fixing assembly 230 is provided with two or more fixing assemblies 230, and the two or more fixing assemblies 230 are arranged at intervals along the length direction of the limiting steel wire 220, and the number of the fixing assemblies 230 is the same as the number of the detection units 100.

[0046] Preferably, the fixing assembly 230 is provided with two fixing assemblies 230.

[0047] In a possible implementation, the outer side wall of the pipe body 140 is provided with a folding pulley 420; the folding pulley 420 is oppositely arranged between the two sliding pulleys 410. It should be noted that the folding pulley moves along the length direction of the inclinometer casing, and the design of the folding pulley 420 increases the contact points between the detection unit 100 and the inner wall of the inclinometer casing. The folding pulley 420 cooperates with the sliding pulley 410, so that the balance and stability of the detection unit 100 in the inclinometer casing can be better maintained. When there is unevenness or local deformation on the inner wall of the inclinometer casing, the folding pulley 420 can flexibly adjust the folding angle by virtue of the foldable characteristic, so that the detection unit 100 always maintains good contact with the inner wall of the inclinometer casing, and thus the detection unit 100 can adapt to inclinometer casings of different diameters, and the utilization rate of the displacement meter is improved.

[0048] In a possible implementation, the folding pulley 420 includes a supporting arm and a pulley; the outer side wall of the pipe body 140 is provided with a hinged seat, and one end of the supporting arm is hinged to the hinged seat; the pulley is rotatably arranged at the end of the supporting arm away from the hinged seat.

[0049] It should be noted that the hinged seat is fixed on the outer side wall of the pipe body 140, the hinged shaft is installed on the hinged seat, one end of the supporting arm is oppositely provided with a hinged lug, the supporting arm is hinged to the hinged shaft on the hinged seat of the outer side wall of the pipe body 140 through the hinged lug, the pulley is rotatably arranged at the end of the supporting arm away from the hinged seat, the spring is sleeved on the hinged shaft and located between the two hinged lugs, the spring is provided with a first straight end and a second straight end, the first straight end abuts against the end face of the hinged seat, and the second straight end abuts against the supporting arm. When it is necessary to fold the pulley 420, an external force acts on the supporting arm, so that the supporting arm rotates around the hinged shaft against the elastic force of the spring. In the rotating process, the spring is compressed, and the pulley gradually approaches the pipe body 140 with the rotation of the supporting arm, and finally the folding state is realized. After the external force disappears, the supporting arm is pushed to rotate around the hinged shaft away from the pipe body 140 under the action of the restoring force, so that the pulley is unfolded again. When the detection unit 100 is in a pipe of different diameters, the spring can automatically adjust the elastic force according to the size of the pipe and the external force acting on the pulley, so that the pulley can be attached to the inner wall of the pipe with appropriate pressure, and good contact between the pulley and the inner wall of the inclinometer casing is ensured.

[0050] In a possible implementation, the inclinometer casing is provided with a groove extending along the length of the inclinometer casing, the outer contour of the detection unit 100 matches the groove, the moving direction of the folding pulley 420 and the sliding pulley 410 is consistent with the extension direction of the groove, and the folding pulley 420 and the sliding pulley 410 cooperate with each other to limit the detection unit 100 in the groove in the inclinometer casing, so as to ensure that the detection unit 100 is always in the correct position and direction during installation. When installing, the detection unit 100 only needs to be placed in the groove, and the cooperation of the folding pulley 420 and the sliding pulley 410 drives the detection unit 100 to move along the length direction of the groove, without the need for complex alignment and adjustment process, thereby reducing the installation difficulty and improving the work efficiency.

[0051] In a possible implementation, as shown in Figure 5 The outer side wall of the pipe body 140 is provided with a second pointing mark 142, the first pointing mark 141 and the second pointing mark 142 are oppositely arranged, and the second pointing mark 142 is suitable for providing position indication for the installation of the sliding pulley 410 and the folding pulley 420. The sliding pulley 410 is arranged in the direction pointed by the second pointing mark 142 in the direction A+, and the folding pulley 420 is arranged in the direction pointed by the second pointing mark 142 in the direction A-. Through the arrangement of the second pointing mark 142, the installer can quickly and accurately complete the installation of the sliding pulley 410 and the folding pulley 420 according to the second pointing mark 142, thereby improving the work efficiency.

[0052] The above has described the embodiments of the present application, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments. The selection of the terms used herein is intended to best explain the principles, practical application or improvement of the technology in the market of the embodiments, or to enable other ordinary skilled persons in the art to understand the embodiments disclosed herein.

Claims

1. A chain displacement meter with adjustable length, characterized in that, The utility model relates to a lightning protection device for displacement meter, which comprises a displacement meter body, a lightning protection controller and a traction weight. The displacement meter body comprises two or more detection units arranged in series; the lightning protection controller is arranged in the detection unit at the first end position; and the traction weight is arranged at the bottom of the detection unit at the last end position. Each of the two or more detection units comprises a pipe body, a sensor, a cable, an aviation plug and an aviation socket. The cable extends through the pipe body and has two ends extending outside the pipe body; the aviation plug and the aviation socket are arranged at the two ends of the cable respectively; and the sensor is arranged on the cable and located in the cavity of the pipe body. The electrical connection between the two adjacent detection units is realized through the plug connection between the aviation plug and the aviation socket. The utility model further comprises a limiting steel wire.

2. The chain-link displacement meter of claim 1, wherein, A buckle member is arranged on the outer sidewall of each pipe body; and the limiting steel wire extends through the buckle members along the length direction of the displacement meter body. A fixing assembly is arranged on the limiting steel wire.

3. The chain-link displacement meter of claim 2, wherein, The limiting steel wire is connected with the pipe body through the fixing assembly. The utility model further comprises a fixing disc.

4. The chain-link displacement meter of claim 2, wherein, One end of the limiting steel wire is connected with the fixing disc; and a cable passage is formed in the fixing disc to allow the cable of an external power supply to pass through the cable passage and be connected with the detection unit at the first end position. The utility model further comprises a sliding wheel.

5. The chain-link displacement meter of claim 1, wherein, A mounting seat is arranged on the outer sidewall of the pipe body; and the sliding wheel is rotatably arranged on the mounting seat. The utility model comprises two or more sliding wheels.

6. The chain-link displacement meter of claim 5, wherein, The two or more sliding wheels are arranged at intervals along the length direction of the pipe body. A folding pulley is arranged on the outer sidewall of the pipe body.

7. The chain-link displacement meter of claim 6, wherein, The folding pulleys are oppositely arranged between the two sliding wheels. The folding pulley comprises a supporting arm and a pulley.

8. The chain-link displacement meter of claim 7, wherein, A hinged seat is arranged on the outer sidewall of the pipe body; one end of the supporting arm is hinged to the hinged seat; and the pulley is rotatably arranged at the end of the supporting arm away from the hinged seat. ​

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