Vibrating wire type multipoint displacement meter convenient to fix

Abstract

The utility model provides a vibration wire type multipoint displacement meter convenient to fix, which comprises a protective cover cylinder, a positioning mounting disc, a ventilation reserved pipe, a communication cable, a buffer pad, a fixing screw, a protective pipe conversion joint, a calibration disc, a measuring rod main body structure, a measuring rod protective pipe, an extension pipe, an external connector, an outer side anchor head and a protective plate shovel, and the protective cover cylinder is in threaded connection with the middle position of the lower part of the positioning mounting disc. The fixing screw sequentially penetrates through the positioning mounting disc and the cushion pad from top to bottom for mounting and fixing, whether mounting is accurate or not is corrected by matching with the scale strip, and the central points of the protective cover cylinder, the positioning mounting disc, the protective tube adapter substitute and the calibration disc are located on the same vertical line. The installation accuracy of the vibrating wire type multi-point displacement meter can be effectively protected; adjustment and installation can be conveniently carried out according to different use environment conditions; under the support and protection of the perforated blade and the buffer spring, the normal work of the displacement detection rod is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of construction engineering technology, and in particular relates to a vibrating wire multi-point displacement meter that is easy to fix. Background Technology

[0002] A multi-point displacement gauge is an instrument used to monitor displacement at multiple locations on the surface of underground or structural objects. Multi-point displacement gauges are commonly used in geotechnical engineering monitoring, building structure deformation monitoring, surface settlement monitoring, earthquake monitoring, and environmental monitoring. A multi-point displacement gauge has multiple measuring points, each capable of independently measuring its displacement relative to a reference position. The main components of a multi-point displacement gauge include an anchor head, sensors, a data acquisition system, and data processing software. When the detected wall, surrounding rock, or soil undergoes displacement or deformation, the anchor head on the multi-point displacement gauge is pulled or compressed, causing displacement. The sensors record and collect the displacement data, allowing engineers to promptly understand the deformation of underground structures. Multi-point displacement gauges play a crucial role in engineering monitoring and safety assessment, helping engineers and researchers to understand the displacement of target areas in a timely manner, thereby taking appropriate measures to ensure engineering safety and analyze the stability of engineering rock masses.

[0003] The multi-point displacement gauge sensor consists of a VWD type vibrating wire displacement gauge, base, protective cover, extended measuring rod, measuring rod connector, PVC protective tube, protective tube connector, protective tube adapter, protective tube end cap, positioning plate, anchor head, observation cable, and other accessories. However, existing vibrating wire multi-point displacement gauges still have problems such as inconvenience in installation and fixation, inability to adjust the installation according to different environmental conditions, and easy damage to the probe.

[0004] Therefore, it is essential to invent a vibrating wire multi-point displacement meter that is easy to fix. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a conveniently fixed vibrating wire multi-point displacement meter, thereby solving the problems of existing vibrating wire multi-point displacement meters being inconvenient to install and fix, unable to be adjusted and installed according to different usage environment conditions, and prone to damaging the probe.

[0006] A conveniently fixed vibrating wire multi-point displacement gauge includes a protective cover, a positioning mounting plate, a vent pipe, a communication cable, a buffer pad, fixing screws, a protective tube adapter, a calibration plate, a measuring rod main structure, a measuring rod protective tube, an extension tube, an external connector, an outer anchor head, and a protective plate shovel. The protective cover is threaded to the lower middle position of the positioning mounting plate; the vent pipe is embedded in the upper part of the positioning mounting plate and communicates with the interior of the protective cover; the communication cable passes through the upper middle position of the positioning mounting plate and is electrically connected to the measuring rod main structure; the buffer pad is glued to the lower part of the positioning mounting plate and located on the outside of the protective cover; the fixing screws are arranged from top to bottom... The positioning mounting plate and buffer pad pass through sequentially below; the protective tube conversion joint is threadedly connected to the lower end of the protective cover; the calibration plate is independently set in the lower part of the protective tube conversion joint and is respectively engaged with the main body structure of the measuring rod, the measuring rod protective tube, and the protective plate shovel; the main body structure of the measuring rod is embedded in the lower middle position of the protective tube conversion joint; the measuring rod protective tube is embedded in the lower left position of the protective tube conversion joint; the extension pipe is threadedly connected to the lower inner side of the measuring rod protective tube; the outer anchor head is threadedly connected to the lower part of the extension pipe; the outer connector is threadedly connected to the intersection of the extension pipe and the outer anchor head; the protective plate shovel is embedded in the lower right position of the protective tube conversion joint.

[0007] Preferably, the upper part of the positioning mounting plate is provided with a fixing screw hole, a first vent hole, a second vent hole, a cable through hole, and a scale strip. The fixing screw hole is located on the outer side of the positioning mounting plate. The first vent hole and the second vent hole are respectively arranged symmetrically with the cable through hole. The cable through hole is located in the middle of the interior of the positioning mounting plate. There are two scale strips respectively arranged symmetrically with the cable through hole.

[0008] Preferably, the main structure of the measuring rod includes a displacement detection rod, an internal anchor head, and an opening connector assembly. The internal anchor head is threadedly connected to the lower inner side of the displacement detection rod; the opening connector assembly is snapped into the intersection of the displacement detection rod and the internal anchor head.

[0009] Preferably, the perforated connector assembly includes a connecting plate, a lower ear plate, a perforated blade, and a buffer spring. The lower ear plate is welded to the lower left and right sides of the connecting plate. The perforated blade is axially connected to the inner side of the lower ear plate. One end of the buffer spring is riveted to the upper inner side of the perforated blade, and the other end is riveted to the outer side of the connecting plate.

[0010] Preferably, the connecting disc is snapped into the intersection of the displacement detection rod and the internal anchor head.

[0011] Preferably, the center points of the protective cover, positioning mounting plate, tube adapter and calibration plate are located on the same vertical line.

[0012] Preferably, the second ventilation hole and the scale strip are arranged in a cross-shaped symmetrical pattern around the cable through hole.

[0013] Preferably, the top of the protective shovel is designed in the shape of a sharpened Luoyang shovel.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This easy-to-fix vibrating wire multi-point displacement gauge is installed and fixed by fixing screws that pass through the positioning mounting plate and buffer pad from top to bottom. A scale strip is used to check whether the installation is accurate. The center points of the protective cover, positioning mounting plate, protective tube adapter and calibration plate are located on the same vertical line, which can effectively protect the installation accuracy of the vibrating wire multi-point displacement gauge; it is also convenient to adjust the installation according to different environmental conditions of the vibrating wire multi-point displacement gauge.

[0016] The outer anchor head and protective plate shovel serve to open holes and provide support and protection, ensuring the safety of the main structure of the measuring rod. At the same time, the opening blades and buffer springs provide support and protection, ensuring the normal operation of the displacement detection rod.

[0017] Furthermore, this easily fixed vibrating wire multi-point displacement meter uses a grounded, double-sheathed, twisted-pair shielded polyurethane cable, effectively improving its resistance to mechanical wear, interference, and lightning strikes. The entire structure is made of stainless steel, featuring an integrated design, anti-rotation, anti-bending, impact resistance, drop resistance, grounding and lightning protection, convenient and reliable installation, and long-term underwater operation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a top view of the positioning and mounting plate of this utility model.

[0020] Figure 3 This is a schematic diagram of the main structure of the measuring rod of this utility model.

[0021] Figure 4 This is a structural schematic diagram of the perforated connector assembly of this utility model.

[0022] In the picture:

[0023] 1. Protective cover; 2. Positioning and mounting plate; 21. Fixing screw hole; 22. Vent hole one; 23. Vent hole two; 24. Cable through hole; 25. Scale strip; 3. Vent reserved pipe; 4. Communication cable; 5. Buffer pad; 6. Fixing screw; 7. Protective tube conversion joint; 8. Calibration plate; 9. Measuring rod main structure; 91. Displacement detection rod; 92. Internal anchor head; 93. Opening joint assembly; 931. Connecting plate; 932. Lower ear plate; 933. Opening blade; 934. Buffer spring; 10. Measuring rod protective tube; 11. Extension tube; 12. External connector; 13. Outer anchor head; 14. Protective plate shovel. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings:

[0025] Example: As attached Figure 1 As shown, this utility model provides a conveniently fixed vibrating wire multi-point displacement meter, including a protective cover 1, a positioning mounting plate 2, a venting pre-installed pipe 3, a communication cable 4, a buffer pad 5, fixing screws 6, a protective tube conversion connector 7, a calibration plate 8, a measuring rod main structure 9, a measuring rod protective tube 10, an extension tube 11, an external connector 12, an outer anchor head 13, and a protective plate shovel 14. The protective cover 1 is threadedly connected to the lower middle position of the positioning mounting plate 2; the venting pre-installed pipe 3 is embedded in the upper part of the positioning mounting plate 2 and is connected to the interior of the protective cover 1; the communication cable 4 passes through the upper middle position of the positioning mounting plate 2 and is electrically connected to the measuring rod main structure 9; the buffer pad 5 is glued to the lower part of the positioning mounting plate 2 and located on the outside of the protective cover 1; the fixing screws... 6. From top to bottom, the positioning mounting plate 2 and the buffer pad 5 pass through sequentially; the protective tube conversion joint 7 is threadedly connected to the lower end of the protective cover 1; the calibration plate 8 is independently set in the lower part of the protective tube conversion joint 7 and is respectively engaged with the main body structure 9 of the measuring rod, the measuring rod protective tube 10 and the protective plate shovel 14; the main body structure 9 of the measuring rod is embedded in the lower middle position of the protective tube conversion joint 7; the measuring rod protective tube 10 is embedded in the lower left position of the protective tube conversion joint 7; the extension tube 11 is threadedly connected to the lower inner side of the measuring rod protective tube 10; the outer anchor head 13 is threadedly connected to the lower part of the extension tube 11; the outer connector 12 is threadedly connected to the intersection of the extension tube 11 and the outer anchor head 13; the protective plate shovel 14 is embedded in the lower right position of the protective tube conversion joint 7.

[0026] As attached Figure 2As shown in the above embodiment, specifically, the upper part of the positioning mounting plate 2 is provided with a fixing screw hole 21, a first vent hole 22, a second vent hole 23, a cable through hole 24, and a scale bar 25. The fixing screw hole 21 is located on the outside of the positioning mounting plate 2; the first vent hole 22 and the second vent hole 23 are respectively symmetrically arranged with the cable through hole 24; the cable through hole 24 is opened in the middle of the interior of the positioning mounting plate 2; and two scale bars 25 are respectively arranged symmetrically with the cable through hole 24.

[0027] As attached Figure 3 As shown in the above implementation scheme, specifically, the main structure 9 of the measuring rod includes a displacement detection rod 91, an internal anchor head 92, and an opening connector assembly 93. The internal anchor head 92 is threadedly connected to the lower inner side of the displacement detection rod 91; the opening connector assembly 93 is snapped into the intersection of the displacement detection rod 91 and the internal anchor head 92.

[0028] As attached Figure 4 As shown in the above embodiment, specifically, the perforated connector assembly 93 includes a connecting plate 931, a lower ear plate 932, a perforated blade 933, and a buffer spring 934. The lower ear plate 932 is welded to the lower left and right sides of the connecting plate 931 respectively; the perforated blade 933 is axially connected to the inner side of the lower ear plate 932; one end of the buffer spring 934 is riveted to the upper inner side of the perforated blade 933, and the other end is riveted to the outer side of the connecting plate 931.

[0029] In the above implementation scheme, specifically, the connecting plate 931 is snapped into the intersection of the displacement detection rod 91 and the internal anchor head 92; the displacement detection rod 91 is specifically an LBY-2 type displacement detection rod.

[0030] In the above implementation scheme, specifically, the center points of the protective cover 1, the positioning mounting plate 2, the protective tube conversion joint 7, and the calibration plate 8 are located on the same vertical line.

[0031] In the above implementation scheme, specifically, the second vent 23 and the scale strip 25 are arranged in a cross-shaped symmetrical arrangement around the cable through hole 24.

[0032] In the above implementation scheme, specifically, the top of the guard plate shovel 14 is set in the shape of a sharpened Luoyang shovel.

[0033] The working process of this utility model is as follows: the fixing screws 6 are used to install and fix the positioning mounting plate 2 and the buffer pad 5 from top to bottom, and the scale strip 25 is used to check whether the installation is accurate and in place; the communication cable 4 is connected, and under the action of the outer anchor head 13 and the protective plate shovel 14, it plays the role of opening holes and providing support and protection, ensuring the safety of the main structure 9 of the measuring rod. At the same time, under the support and protection of the opening blade 933 and the buffer spring 934, the normal operation of the displacement detection rod 91 is guaranteed.

[0034] When the displacement of the structure being measured occurs, the displacement detection rod 91 is displaced by the internal anchor head 92 of the multi-point displacement gauge. The displacement of the displacement detection rod 91 is transmitted to the vibrating string and transformed into a change in the stress of the vibrating string, thereby changing the vibration frequency of the vibrating string.

[0035] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A conveniently fixed wire displacement gauge, characterized by, The convenient fixed vibrating string type multi-point displacement meter, including protection cover cylinder (1), positioning installation disc (2), ventilation reserved pipe (3), communication cable (4), buffer pad (5), fixed screw (6), pipe conversion joint (7), calibration disc (8), measuring rod main body structure (9), measuring rod pipe (10), extension pipe (11), external connector (12), external anchor head (13) and guard plate shovel (14), protection cover cylinder (1) is connected in the lower middle position of positioning installation disc (2) in threaded mode, ventilation reserved pipe (3) is embedded in the upper portion of positioning installation disc (2) and is communicated with the inside of protection cover cylinder (1), communication cable (4) penetrates the upper middle position of positioning installation disc (2) and is electrically connected with measuring rod main body structure (9), buffer pad (5) is glued in the lower portion of positioning installation disc (2) and is located on the outside of protection cover cylinder (1), fixed screw (6) penetrates positioning installation disc (2) and buffer pad (5) from top to bottom in sequence, pipe conversion joint (7) is connected in the lower end of protection cover cylinder (1) in threaded mode, calibration disc (8) is independently arranged in the lower portion of pipe conversion joint (7) and is clamped with measuring rod main body structure (9), measuring rod pipe (10) and guard plate shovel (14) respectively.

2. The conveniently fixed wire-type multi-point displacement meter according to claim 1, wherein Measuring rod main body structure (9) is embedded in the lower middle position of pipe conversion joint (7), measuring rod pipe (10) is embedded in the lower left position of pipe conversion joint (7), extension pipe (11) is connected in the inside lower side position of measuring rod pipe (10) in threaded mode, external anchor head (13) is connected in the lower portion of extension pipe (11) in threaded mode, external connector (12) is connected in the intersection of extension pipe (11) and external anchor head (13) in threaded mode, guard plate shovel (14) is embedded in the lower right position of pipe conversion joint (7).

3. The conveniently fixed wire-type multi-point displacement meter according to claim 1, wherein The upper portion of positioning installation disc (2) is provided with fixed screw hole (21), air hole one (22), air hole two (23), cable through hole (24) and scale bar (25), fixed screw hole (21) is located on the outside of positioning installation disc (2), air hole one (22) and air hole two (23) are symmetrically arranged with cable through hole (24) respectively, cable through hole (24) is arranged in the inside middle position of positioning installation disc (2), scale bar (25) is provided with two symmetrically arranged with cable through hole (24) respectively.

4. The conveniently fixed wire-type multi-point displacement meter according to claim 1, wherein Measuring rod main body structure (9) includes displacement detection rod (91), internal anchor head (92) and opening joint assembly (93), internal anchor head (92) is connected in the inside lower side position of displacement detection rod (91) in threaded mode, opening joint assembly (93) is clamped in the intersection of displacement detection rod (91) and internal anchor head (92).

5. The conveniently fixed wire-type multi-point displacement meter according to claim 4, wherein The opening joint assembly (93) comprises a connecting disc (931), lower ear plates (932), an opening blade (933) and a buffer spring (934), the lower ear plates (932) are respectively welded on the lower left and right sides of the connecting disc (931), the opening blade (933) is connected with the inner side of the lower ear plates (932), and the buffer spring (934) is riveted on the upper part of the inner side of the opening blade (933) and the outer side of the connecting disc (931).

6. The conveniently fixed wire-type multi-point displacement meter according to claim 1, wherein The center points of the protective cover barrel (1), the positioning mounting disc (2), the protective pipe conversion joint (7) and the calibration disc (8) are located on the same vertical line.

7. The conveniently fixed wire-type multi-point displacement meter according to claim 2, wherein The air vent two (23) and the scale bar (25) are arranged in a cross symmetric manner around the cable through hole (24).

8. The conveniently fixed wire-type multi-point displacement meter according to claim 1, wherein The top end of the guard plate shovel (14) is provided in a open blade loyang shovel shape.

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