Array type displacement meter fixing device and displacement detection system with same

Abstract

The utility model relates to an array type displacement meter fixing device and a displacement detection system with the array type displacement meter fixing device, the array type displacement meter fixing device is suitable for installing an array type displacement meter in an inclinometer pipe, and the array type displacement meter fixing device comprises a hoop piece, a fixed pulley assembly and a movable pulley assembly; the hoop piece is detachably installed on the periphery of the array type displacement meter. The fixed pulley assembly and the movable pulley assembly are oppositely arranged on the outer side wall of the hoop piece. The fixed pulley assembly comprises a mounting seat and a fixed pulley; the fixed pulley is rotatably arranged on the mounting seat; the movable pulley assembly comprises a hinge seat, a support arm and a movable pulley; one end of the support arm is hinged to the hinge seat; the movable pulley is rotatably arranged at one end, deviating from the hinge seat, of the support arm; when the array type displacement meter is installed in the inclinometer pipe, the fixed pulley and the movable pulley can move in the body length direction of the inclinometer pipe guide groove, so that when the inclinometer pipe deforms, the fixed pulley and the movable pulley drive the array type displacement meter and the inclinometer pipe to generate synchronous deformation.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of engineering detection and measurement, and particularly relates to an array displacement meter fixing device and a displacement detection system with the same. 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, a inclinometer tube needs to be installed in a borehole, and an array displacement meter needs to be installed in the inclinometer tube; wherein the array displacement meter is composed of multiple equal-length displacement sensor units connected at the head and tail, and the inner diameter of the inclinometer tube is larger than the outer diameter of the array displacement meter, which results in a gap between the array displacement meter and the inner wall of the inclinometer tube; when the inclinometer tube is deformed due to the action of the rock-soil body, the array displacement meter cannot realize synchronous deformation with the inclinometer tube due to the lack of an effective fixing device, which further leads to large deviation of the monitoring data of the array displacement meter, and affects the accuracy and reliability of the monitoring data of the array displacement meter. SUMMARY

[0003] Therefore, the present application provides an array displacement meter fixing device which is suitable for installing an array displacement meter in an inclinometer tube, comprising: a hoop piece, a fixed pulley assembly, and a movable pulley assembly.

[0004] The hoop piece is detachably installed on the outer periphery of the array displacement meter, and the fixed pulley assembly and the movable pulley assembly are oppositely arranged on the outer side wall of the hoop piece.

[0005] The fixed pulley assembly comprises a mounting seat and a fixed pulley; the fixed pulley is rotatably arranged on the mounting seat.

[0006] The movable pulley assembly comprises a hinged seat, a supporting arm, and a movable pulley; one end of the supporting arm is hinged to the hinged seat; the movable pulley is rotatably arranged at the end of the supporting arm away from the hinged seat.

[0007] When the array displacement meter is installed in the inclinometer tube, the fixed pulley and the movable pulley can move along the length direction of the guide groove of the inclinometer tube, so that when the inclinometer tube is deformed, the fixed pulley and the movable pulley drive the array displacement meter to produce synchronous deformation with the inclinometer tube.

[0008] In one possible implementation, the movable pulley assembly further comprises a spring.

[0009] The hinged seat is provided with a limiting shaft; the spring is arranged on the hinged seat, and the first free end of the spring abuts against the limiting shaft, and the second free end of the spring abuts against the supporting arm.

[0010] In one possible implementation, the hoop piece comprises a first hoop, a second hoop, and a buckle piece.

[0011] The first and second hoops are detachably locked to the outer periphery of the array displacement meter by the buckle.

[0012] In one possible implementation, the buckle comprises a hook and a slot.

[0013] The hook is fixedly arranged on the first hoop, and the slot is fixedly arranged on the second hoop.

[0014] In one possible implementation, the buckle is provided in two or more; the two or more buckles are arranged along the length direction of the hoop.

[0015] According to another aspect of the present application, a displacement detection system is provided, comprising a inclinometer, an array displacement meter, and the array displacement meter fixing device of any one of the above; the array displacement meter is installed in the inclinometer by the fixing device; the fixing device is provided in two or more; the two or more fixing device bodies are arranged along the length direction of the array displacement meter.

[0016] Advantages of the present application

[0017] In actual installation, the hoop is wrapped around the outer periphery of the array displacement meter, ensuring that the hoop closely fits the array displacement meter, and then the array displacement meter with the fixing device is placed in the inclinometer, and the fixed pulley and the movable pulley are respectively aligned with the guide groove of the inclinometer; when the inclinometer is deformed due to the action of the rock-soil body, the fixed pulley and the movable pulley are respectively located on the outer side wall of the hoop and in contact with the guide groove of the inclinometer, and the fixed pulley and the movable pulley move along the length direction of the guide groove, thereby driving the hoop and the array displacement meter fixed thereto to deform synchronously with the inclinometer.

[0018] The present application sets the fixed pulley assembly and the movable pulley assembly on the hoop, and the hoop, the fixed pulley assembly, and the movable pulley assembly work together to form a two-point constrained mechanical structure, so that the array displacement meter has stable support in the inclinometer, thereby avoiding the shaking of the array displacement meter in the inclinometer due to the gap, and realizing the relative fixation of the array displacement meter in the inclinometer, reducing the data deviation caused by the shaking due to the gap between the array displacement meter and the inclinometer; when the inclinometer deforms, the fixed pulley and the movable pulley roll along the guide groove of the inclinometer, thereby driving the array displacement meter to deform synchronously with the inclinometer, thereby improving the accuracy of the array displacement meter detection data; reducing the data deviation caused by the array displacement meter unable to deform synchronously with the inclinometer, and improving the accuracy and reliability of the array displacement meter monitoring data.

[0019] 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

[0020] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate examples of the present application, and together with the description, serve to explain the principles of the present application.

[0021] Figure 1 A schematic view showing the main structure of the fixing device of the present application;

[0022] Figure 2 An exploded view of Figure 1 ;

[0023] Figure 3 A partial enlarged view of Figure 2 ;

[0024] Figure 4 A schematic view showing the installation of the array displacement meter in the inclinometer tube through the fixing device.

[0025] Fixing device - 100; Array displacement meter - 610; Inclinometer tube - 620; First clamp - 210; Second clamp - 220; Buckle - 230; Hook - 231; Slot part - 232; Mounting seat - 310; First vertical plate - 311; Second vertical plate - 312; Pivot - 313; Fixed pulley - 320; Hinge seat - 410; Third vertical plate - 411; Fourth vertical plate - 412; Hinge shaft - 413; Arm - 420; Movable pulley - 430; Spring - 510; First free end - 511; Second free end - 512; Limiting shaft - 520. DETAILED DESCRIPTION

[0026] Various exemplary embodiments, features and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference signs in the drawings represent functionally the same or similar elements. Although various aspects of the embodiments are shown in the drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

[0027] Wherein, it is 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.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0030] 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.

[0031] This application proposes an array-type displacement gauge fixing device, suitable for installing the array-type displacement gauge 610 in the inclinometer tube 620, such as... Figures 1 to 3 As shown, it includes: a clamp, a fixed pulley 320 assembly, and a movable pulley 430 assembly; the clamp is detachably mounted on the outer periphery of the array displacement gauge 610, and the fixed pulley 320 assembly and the movable pulley 430 assembly are disposed opposite to each other on the outer side wall of the clamp; the fixed pulley 320 assembly includes a mounting base 310 and a fixed pulley 320; the fixed pulley 320 is rotatably mounted on the mounting base 310; the movable pulley 430 assembly includes a hinge base 410, a support arm 420, and a movable pulley 430; One end of the support arm 420 is hinged to the hinge seat 410; the movable pulley 430 is rotatably disposed at the end of the support arm 420 away from the hinge seat 410; wherein, when the array displacement gauge 610 is installed inside the inclinometer tube 620, the fixed pulley 320 and the movable pulley 430 can move along the length direction of the guide groove of the inclinometer tube 620 so that when the inclinometer tube 620 deforms, the fixed pulley 320 and the movable pulley 430 drive the array displacement gauge 610 and the inclinometer tube 620 to deform synchronously.

[0032] It should be noted that the hoop is suitable for providing stable support for the array displacement meter 610, so that it can maintain a fixed position in the inclinometer casing 620. The hoop is matched with the outer contour of the array displacement meter 610, and the hoop is tightly fastened on the side wall of the array displacement meter 610, so as to avoid relative displacement between the hoop and the array displacement meter 610 during use. At the same time, the hoop provides a mounting base for the fixed pulley 320 assembly and the movable pulley 430 assembly, and the fixed pulley 320 assembly and the movable pulley 430 assembly are relatively mounted on the outer side wall of the hoop. The mounting seat 310 is fixedly arranged on the outer side wall of the hoop, and the mounting seat 310 is suitable for providing a mounting base for the fixed pulley 320. The fixed pulley 320 is suitable for providing a stable support point for the array displacement meter 610. When the inclinometer casing 620 deforms, the fixed pulley 320 can maintain a relatively stable position to provide a reliable reference for the synchronous deformation of the array displacement meter 610. When the inclinometer casing 620 deforms, the fixed pulley 320 can move along the body length direction of the guide groove in the inclinometer casing 620, thereby driving the array displacement meter 610 and the inclinometer casing 620 to deform synchronously. The hinge seat 410 is fixedly arranged on the outer side wall of the hoop and is arranged opposite to the mounting seat 310. The hinge seat 410 is provided with a hinge shaft 413, and one end of the supporting arm 420 is hinged to the hinge shaft 413, so that the supporting arm 420 can rotate around the hinge shaft 413 towards the array displacement meter 610. When the inclinometer casing 620 deforms, the supporting arm 420 rotates towards or away from the array displacement meter 610 to adjust the angle between the supporting arm 420 and the array displacement meter 610, so that the movable pulley 430 is always located in the guide groove of the inclinometer casing 620, thereby keeping the relative position synchronous change with the fixed pulley 320.

[0033] In actual installation, the hoop is wrapped around the outer periphery of the array displacement meter 610 to ensure that the hoop is closely fitted with the array displacement meter 610, and then the array displacement meter 610 provided with the fixing device 100 is put into the inclinometer casing 620, and the fixed pulley 320 and the movable pulley 430 are aligned with the guide groove of the inclinometer casing 620 respectively. When the inclinometer casing 620 deforms due to the action of the rock-soil body, since the fixed pulley 320 and the movable pulley 430 are located on the outer side wall of the hoop and are in contact with the guide groove of the inclinometer casing 620, the fixed pulley 320 and the movable pulley 430 move along the body length direction of the guide groove, thereby driving the hoop and the array displacement meter 610 fixed therewith to deform synchronously with the inclinometer casing 620.

[0034] The application sets the fixed pulley 320 assembly and the movable pulley 430 assembly on the hoop piece, and the hoop piece, the fixed pulley 320 assembly and the movable pulley 430 assembly work together to form a two-point constraint mechanical structure, so that the array displacement meter 610 has stable support in the inclinometer casing 620, thereby avoiding the shaking of the array displacement meter 610 in the inclinometer casing 620 due to the gap, and further realizing the relative fixation of the array displacement meter 610 in the inclinometer casing 620, reducing the data deviation caused by the shaking between the array displacement meter 610 and the inclinometer casing 620 due to the gap. When the inclinometer casing 620 deforms, the fixed pulley 320 and the movable pulley 430 roll along the guide groove of the inclinometer casing 620 and further drive the array displacement meter 610 to deform synchronously with the inclinometer casing 620, thereby improving the accuracy of the detection data of the array displacement meter 610; reducing the data deviation caused by the array displacement meter 610 due to the inability to deform synchronously with the inclinometer casing 620, and improving the accuracy and reliability of the monitoring data of the array displacement meter 610.

[0035] In a possible implementation manner, as shown in Figure 1 , Figure 2 The hoop piece includes a first hoop 210, a second hoop 220 and a buckle 230; the first hoop 210 and the second hoop 220 are detachably locked on the outer periphery of the array displacement meter 610 through the buckle. It should be noted that the main bodies of the first hoop 210 and the second hoop 220 are both in a half-ring structure, and the openings of the first hoop 210 and the second hoop 220 both face the array displacement meter 610. The radii of the first hoop 210 and the second hoop 220 match the outer periphery profile of the array displacement meter 610, and when the first hoop 210 and the second hoop 220 are spliced, the inner side walls of the two together enclose a complete annular space. The design of the first hoop 210 and the second hoop 220 can symmetrically apply a clamping force to the array displacement meter 610 from the opposite two sides, so that the hoop piece closely fits the outer periphery of the array displacement meter 610, thereby avoiding the relative displacement between the hoop piece and the array displacement meter 610, and ensuring that the connection between the hoop piece and the array displacement meter 610 is more stable. The buckle 230 is suitable for locking or detaching the first hoop 210 and the second hoop 220. When installing, the staff can easily wrap the first hoop 210 and the second hoop 220 around the displacement meter and quickly fix them through the buckle 230, which is simple and fast to operate, saves installation time and improves installation efficiency.

[0036] In a possible implementation manner, as shown in Figure 2 The buckle 230 includes a clamping hook 231 and a clamping groove 232; the clamping hook 231 is fixedly arranged on the first hoop 210, the clamping groove 232 is fixedly arranged on the second hoop 220, and the clamping hook 231 and the clamping groove 232 are oppositely arranged.

[0037] It should be noted that the main body of the clamping hook 231 is in the shape of an L-shaped hook structure, one end of the clamping hook 231 is fixedly connected to the outer side wall of the first hoop 210, the hook portion of the clamping hook 231 is arranged towards the direction of the second hoop 220, and the clamping hook 231 is located at the open end of the first hoop 210. The clamping groove portion 232 is fixedly arranged on the outer side wall of the second hoop 220 and is located adjacent to the open end of the second hoop 220, and the clamping groove portion 232 is arranged opposite to the clamping hook 231. The clamping groove portion 232 is provided with a slot, and the slot of the clamping groove portion 232 is matched with the hook portion of the clamping hook 231, so that the hook portion of the clamping hook 231 can be smoothly inserted into the slot of the clamping groove portion 232 to form a tight clamping connection. When it is necessary to install the hoop member, the first hoop 210 and the second hoop 220 are respectively wrapped around the outer periphery of the array displacement meter 610 from both sides of the array displacement meter 610, so that the clamping hook 231 on the first hoop 210 is opposite to the clamping groove portion 232 on the second hoop 220. When the hook portion of the clamping hook 231 is inserted into the slot of the clamping groove portion 232, a certain elastic deformation is generated. After the hook portion of the clamping hook 231 completely enters the slot of the clamping groove portion 232, the clamping hook 231 returns to its original state and the hook portion of the clamping hook 231 is clamped on the clamping groove portion 232, thereby realizing the firm locking of the first hoop 210 and the second hoop 220.

[0038] In a possible implementation manner, as shown in Figure 1 , Figure 2 The buckle member 230 is provided with two or more; the two or more buckle members 230 are arranged at intervals along the length direction of the hoop member; the two or more buckle members 230 can provide multiple fixing points, and this multi-point fixing manner can more uniformly distribute the locking force between the hoop member and the array displacement meter 610, thereby ensuring the tight connection between the hoop member and the array displacement meter 610.

[0039] Preferably, the buckle member 230 is provided with four, and the four buckle members 230 are arranged opposite to each other in pairs.

[0040] In a possible implementation manner, as shown in Figure 2 The mounting seat 310 includes a first vertical plate 311, a second vertical plate 312 and a rotating shaft 313; the first vertical plate 311 and the second vertical plate 312 are both fixedly arranged on the hoop member; and the first vertical plate 311 and the second vertical plate 312 are arranged at intervals, the rotating shaft 313 is fixedly installed on the first vertical plate 311 and the second vertical plate 312, and the fixed pulley 320 is rotatably sleeved on the rotating shaft 313 and located between the first vertical plate 311 and the second vertical plate 312.

[0041] In a possible implementation manner, as shown in Figure 2 , Figure 3As shown, the hinged seat 410 is arranged on the hoop member opposite to the mounting seat 310, the hinged seat 410 comprises a third vertical plate 411, a fourth vertical plate 412 and a hinge shaft 413, the third vertical plate 411 and the fourth vertical plate 412 are both fixedly arranged on the hoop member; the third vertical plate 411 is arranged spaced apart from the fourth vertical plate 412, the hinge shaft 413 is fixedly installed on the third vertical plate 411 and the fourth vertical plate 412, the main body of the support arm 420 is in H-shaped structure, one end of the support arm 420 is rotatably hinged on the hinge shaft 413 and located between the third vertical plate 411 and the fourth vertical plate 412, the movable pulley 430 is rotatably arranged in the opening of the end of the support arm 420 away from the hinge shaft 413.

[0042] In one possible implementation manner, as shown in Figure 3 As shown, the movable pulley 430 assembly further comprises a spring 510; the hinged seat 410 is provided with a limiting shaft 520; the spring 510 is arranged on the hinged seat 410, and a first free end 511 of the spring 510 abuts against the limiting shaft 520, and a second free end 512 of the spring 510 abuts against the support arm 420.

[0043] It should be noted here that the limiting shaft 520 is fixedly arranged on the third vertical plate 411 and the fourth vertical plate 412, and the length direction of the limiting shaft 520 is parallel to the length direction of the hinge shaft 413, the spring 510 is rotatably sleeved on the hinge shaft 413 and located in the opening of one end of the support arm 420, the first free end 511 of the spring 510 abuts against the limiting shaft 520, and the second free end 512 of the spring 510 abuts against the support arm 420, when the support arm 420 rotates around the hinge shaft 413 under the action of external force, the spring 510 will be compressed to produce elastic deformation of the spring 510, thereby storing elastic potential energy; when the external force disappears, the spring 510 releases the stored elastic potential energy to generate a spring force opposite to the rotating direction of the support arm 420, thereby pushing the support arm 420 to rotate reversely around the hinge shaft 413, so that the movable pulley 430 on the support arm 420 is always located in the guide groove in the inclinometer casing 620.

[0044] According to another aspect of the application, a displacement detection system is provided, as shown in Figure 4 The system comprises: an inclinometer casing 620, an array displacement meter 610 and any one of the fixing devices 100 described above; the array displacement meter 610 is installed in the inclinometer casing 620 through the fixing device 100; the fixing device 100 is provided with two or more than two fixing device bodies arranged spaced apart along the length direction of the array displacement meter 610.

[0045] It should be noted that the multi-point fixing mode of the plurality of fixing devices 100 can ensure that the array displacement meter 610 is firmly fixed in the entire length direction, so as to ensure that the array displacement meter 610 can accurately reflect the deformation of the inclinometer casing 620, and improve the accuracy of the monitoring data. When the inclinometer casing 620 is subjected to complex deformation, the plurality of fixing devices 100 can better adapt to the deformation, ensure the synchronous deformation of the array displacement meter 610 and the inclinometer casing 620, and further improve the reliability of the monitoring data. The array displacement meter 610 is composed of a plurality of equal-length displacement sensor units connected in series. Two fixing devices 100 are arranged on each displacement sensor unit, and the two fixing devices 100 are located at the two ends of each displacement sensor unit.

[0046] 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 of the embodiments, practical application, or improvement of the technology in the market, or to enable other ordinary skilled persons in the art to understand the embodiments disclosed herein.

Claims

1. An array displacement meter mounting device adapted to mount an array displacement meter in a borehole, characterised in that, The utility model relates to a fixing device for array type displacement meter, which comprises a clamp, a fixed pulley assembly and a movable pulley assembly. The clamp is detachably mounted on the outer periphery of the array type displacement meter, and the fixed pulley assembly and the movable pulley assembly are oppositely arranged on the outer side wall of the clamp. The fixed pulley assembly comprises a mounting seat and a fixed pulley, and the fixed pulley is rotatably arranged on the mounting seat. The movable pulley assembly comprises a hinged seat, a supporting arm and a movable pulley, one end of the supporting arm is hinged to the hinged seat, and the movable pulley is rotatably arranged at the end of the supporting arm away from the hinged seat. When the array type displacement meter is mounted in the inclinometer casing, the fixed pulley and the movable pulley can move along the length direction of the guide groove of the inclinometer casing, so that when the inclinometer casing deforms, the array type displacement meter and the inclinometer casing are synchronously deformed by the fixed pulley and the movable pulley. The movable pulley assembly further comprises a spring.

2. The arrayed displacement meter fixture of claim 1, wherein, The hinged seat is provided with a limiting shaft, the spring is arranged on the hinged seat, the first free end of the spring abuts against the limiting shaft, and the second free end of the spring abuts against the supporting arm. The clamp comprises a first clamp, a second clamp and a buckle.

3. The arrayed displacement meter fixture of claim 1, wherein, The first clamp and the second clamp are detachably locked on the outer periphery of the array type displacement meter by the buckle. The buckle comprises a clasp and a clamping groove part.

4. An arrayed displacement meter fixture according to claim 3, wherein The clasp is fixedly arranged on the first clamp, the clamping groove part is fixedly arranged on the second clamp, and the clasp and the clamping groove part are oppositely arranged. The buckle is provided with two or more buckles.

5. The arrayed displacement meter fixture of claim 3, wherein, The two or more buckles are arranged along the length direction of the clamp. The utility model relates to an inclinometer casing, an array type displacement meter and the fixing device.

6. A displacement detection system characterized by, The array type displacement meter is mounted in the inclinometer casing by the fixing device. The fixing device is provided with two or more fixing devices, and the two or more fixing device bodies are arranged along the length direction of the array type displacement meter. ​ ​

Images