CN213274169U

CN213274169U - Deep soil displacement measuring instrument

Info

Publication number: CN213274169U
Application number: CN202022681802.7U
Authority: CN
Inventors: 孙中义; 王仁锦; 朱程健; 王连新; 冷沛沛
Original assignee: Jiangsu Provincial Geotechnical Surveying & Design Institute
Current assignee: Jiangsu Provincial Geotechnical Surveying & Design Institute
Priority date: 2020-11-18
Filing date: 2020-11-18
Publication date: 2021-05-25
Anticipated expiration: 2030-11-18

Abstract

The application relates to a deep soil displacement measuring instrument, which comprises a protective pipe and a ponding detection unit, wherein an end cover is arranged at the bottom end of the protective pipe, and a telescopic piece and a resetting piece are arranged on the end cover; the telescopic piece comprises a telescopic frame and a telescopic rod fixedly installed on the telescopic frame, the telescopic frame is arranged on one side, away from the protective pipe, of the end cover, the accumulated water detection unit is installed on the telescopic frame, a telescopic through groove is formed in the end cover, and the telescopic rod penetrates through the telescopic through groove and slides along the axis of the telescopic through groove; the piece that resets is installed at the pillar inboard and can promote the telescopic link, makes the expansion bracket remove towards the one side of keeping away from the end cover. This application has effectively reduced because can not in time react, lead to soil body displacement measuring apparatu to stretch into the aquatic, the effect of the probability that makes soil body displacement measuring apparatu damage.

Description

Deep soil displacement measuring instrument

Technical Field

The application relates to the technical field of measuring tools, in particular to a deep soil displacement measuring instrument.

Background

The soil body displacement measuring instrument is suitable for long-term measurement of the opening degree of the expansion joint of the concrete structure, and can also be used for measuring the location, the subsidence, the strain and the slippage of the structures such as an earth dam, an earth dike, a side slope and the like, and can synchronously measure the temperature of a buried point. The main measuring element of the current soil displacement measuring instrument is a vibrating wire sensor. When the soil body is located in the measuring instrument and is used for measuring the deformation displacement of the concrete structure, the soil body displacement measuring instrument needs to be inserted into a preset measuring hole with a certain depth, and when accumulated water exists at the bottom of the measuring hole, the service life and the measuring precision of the soil body displacement measuring instrument can be influenced to a certain degree.

For example, chinese patent No. CN209669834U discloses a deep soil displacement measuring instrument, which includes: the end cover is arranged at the lower end part of the protective pipe; the accumulated water detection unit is arranged at the lower end part of the end cover and is used for detecting accumulated water at the bottom of the current measuring hole and outputting an accumulated water detection signal; the control unit is coupled with the accumulated water detection unit to receive the accumulated water detection signal and output a control signal; the indicating unit is coupled with the control unit to receive the control signal and respond to the control signal to indicate; it has the effect that whether it has ponding to make the staff can judge in the very first time in the measuring hole.

In order to solve the above problems, the inventor considers that in the process of practical use, in order to increase the construction speed, when a worker stretches a soil displacement measuring instrument into the soil, the speed is usually faster, and after a water accumulation detecting unit on the soil displacement measuring instrument detects a signal, people cannot respond in time or easily stretch the soil displacement measuring instrument into water, so that the soil displacement measuring instrument is easily damaged.

SUMMERY OF THE UTILITY MODEL

In order to improve people and can not in time react and come, still stretch into the aquatic with soil body displacement measuring apparatu easily, lead to the problem that soil body displacement measuring apparatu damaged easily, this application provides a deep soil body displacement measuring apparatu.

The application provides a deep soil body displacement measurement appearance adopts following technical scheme:

a deep soil displacement measuring instrument comprises a protective pipe and a ponding detection unit, wherein an end cover is arranged at the bottom end of the protective pipe, and a telescopic piece and a resetting piece are arranged on the end cover; the telescopic piece comprises a telescopic frame and a telescopic rod fixedly installed on the telescopic frame, the telescopic frame is arranged on one side, away from the protective pipe, of the end cover, the accumulated water detection unit is installed on the telescopic frame, a telescopic through groove is formed in the end cover, and the telescopic rod penetrates through the telescopic through groove and slides along the axis of the telescopic through groove; the piece that resets is installed at the pillar inboard and can promote the telescopic link, makes the expansion bracket remove towards the one side of keeping away from the end cover.

Through adopting above-mentioned technical scheme, the piece that resets promotes the expansion bracket and moves towards the one side of keeping away from the end cover, and when the end cover was kept away from to the expansion bracket, the ponding detecting element who installs on the expansion bracket was located the position department of keeping away from the end cover. When people hold the protective tube to detect, the accumulated water detection unit arranged on the expansion bracket can contact with water firstly and send an alarm, so that certain reaction time can be reserved for people, and the probability that the soil body displacement measuring instrument stretches into water and is damaged due to the fact that the soil body displacement measuring instrument cannot react in time is effectively reduced. And the expansion bracket can slide to the position adjacent to the end cover along the telescopic through groove, the protective pipe is not influenced to detect, and the measuring accuracy is guaranteed.

Optionally, the expansion bracket be the annular, the axis collineation of expansion bracket and pillar, the external diameter of expansion bracket is less than the external diameter of pillar, ponding detecting element installs the inboard at the expansion bracket.

Through adopting above-mentioned technical scheme, the expansion bracket sets up the annular, protection ponding detecting element that can be fine, makes the pillar when using, and ponding detecting element is difficult because the collision damages.

Optionally, the telescopic link be parallel with the axis of pillar, and the telescopic link is connected with the inside wall of expansion bracket, seted up annular dashpot on the end cover, and the dashpot is embedded to be equipped with the buffering cushion, flexible logical groove is seted up along the inboard side of dashpot.

Through adopting above-mentioned technical scheme, touch hard thing when the expansion bracket, when moving towards one side of end cover, the expansion bracket can move to the buffer pad piece of dashpot on, fine protection end cover and expansion bracket, make end cover and expansion bracket not fragile.

Optionally, the number of the telescopic rods is two, and the telescopic rods are arranged at equal intervals along the inner side wall of the telescopic frame.

Through adopting above-mentioned technical scheme, the telescopic link equidistant setting makes the telescopic link more stable when removing. And the quantity of telescopic link is few, can be convenient for protect other structures installation in the pipe.

Optionally, the telescopic rod is rotatably mounted on the telescopic frame, and the rotation axis of the telescopic rod is collinear with the axis of the telescopic rod; the terminal surface that the expansion bracket was kept away from to the telescopic link is the installation face, fixedly connected with joint pole on the installation face of telescopic link, the cross section of joint pole is greater than the telescopic link, and when the telescopic link rotated, the projection position of joint pole on the installation face changed, set up the joint groove that equals with joint pole shape on the inside wall that the flexible led to the groove, and the one end in joint groove and the flexible one end coincidence that leads to the groove and keep away from the expansion bracket, the joint pole is rotatable and inlays and establish into the joint inslot.

Through adopting above-mentioned technical scheme, the telescopic link rotates and installs on the expansion bracket, through promoting the telescopic link, makes the joint pole be located the joint inslot side, later rotates the telescopic link, because when the telescopic link rotated, the projection position of joint pole on the installation face changed, can make the joint pole remove to the position department that can't imbed the joint inslot again to fix the position of expansion bracket. When the device is not used, the device can be stored by such a structure.

Optionally, the length of the clamping groove is equal to the length of a half of the telescopic through groove, and the clamping rod is equal to the length of the clamping groove.

Through adopting above-mentioned technical scheme, the length that the flexible logical groove of expansion link length equals, and joint pole length and joint groove equalling in the length of half flexible logical groove, make the expansion link fix when the position department adjacent with the end cover through the joint piece, the expansion link is adjacent with the end cover position, and its structure is more compact.

Optionally, the piece that resets be compression spring, compression spring is close to the one end and pillar inside wall fixed connection of end cover, the compression spring other end is connected with the joint pole.

Through adopting above-mentioned technical scheme, compression spring can push the joint pole and remove, makes the expansion bracket remove towards the one side of keeping away from the end cover, and the structure is comparatively simple.

Optionally, when the clamping rod is located outside the clamping groove, the length of the compression spring is smaller than the natural length of the compression spring.

Through adopting above-mentioned technical scheme, when the joint pole was located the joint groove outside, compression spring was extruded, made joint pole and end cover butt, and then made the difficult rotation of joint pole. Effectively reduced because the mistake touches, it is the rotation of joint pole to can inlay the joint inslot, lead to the phenomenon that the expansion bracket stretches out.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the probability that the soil body displacement measuring instrument extends into water and is damaged due to the fact that the soil body displacement measuring instrument cannot react in time is effectively reduced;

2. when not using this equipment, through promoting the telescopic link, make the joint pole be located the joint inslot side, later rotate the telescopic link, make the joint pole remove to the position department that can't imbed the joint inslot again to simple fix the position of expansion bracket.

Drawings

Fig. 1 is a schematic structural diagram of the present embodiment.

FIG. 2 is a schematic view of the end cap with portions of the end cap hidden.

Description of reference numerals: 1. protecting the pipe; 11. an end cap; 12. a buffer tank; 13. buffering cushion blocks; 14. a telescopic through groove; 2. a telescoping member; 21. a telescopic frame; 22. an accumulated water detection unit; 23. mounting blocks; 24. a telescopic rod; 25. a clamping groove; 26. a clamping and connecting rod; 3. a reset member.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses a deep soil displacement measuring instrument. Referring to fig. 1 and 2, the deep soil displacement measuring instrument includes a protective pipe 1 and an end cap 11 fixedly installed at one end of the protective pipe 1. The end cover 11 is provided with the telescopic member 2 and the reset member 3.

Referring to fig. 2, an annular buffer groove 12 is formed in the end cover 11, and a rubber cushion block 13 is embedded in the buffer groove 12. Two telescopic through grooves 14 are further formed in the end cover 11, the telescopic through grooves 14 are located on the inner side of the buffer groove 12, the telescopic through grooves 14 are adjacent to the inner side wall of the buffer groove 12, and the two telescopic through grooves 14 are arranged oppositely. The extensible member 2 comprises an annular extensible frame 21, the outer diameter of the extensible frame 21 is slightly smaller than the outer diameter of the buffer groove 12, the inner diameter of the extensible frame 21 is slightly larger than the inner diameter of the buffer groove 12, and a ponding detection unit 22 is installed on the inner side of the extensible frame 21. Still weld on the inside wall of expansion bracket 21 has two installation pieces 23, and two installation pieces 23 set up relatively, rotate on the side that installation piece 23 is close to end cover 11 and install telescopic link 24, and the axis of rotation of telescopic link 24 and the axis collineation of telescopic link 24. A telescopic rod 24 is respectively arranged in the two telescopic through grooves 14 in a penetrating way.

Referring to fig. 2, the length of the telescopic slots 14 of the telescopic rods 24 is equal. The inside wall of the telescopic through groove 14 is provided with a clamping groove 25, and one end of the clamping groove 25 coincides with the end of the telescopic through groove 14 far away from the telescopic frame 21. The end face far away from the telescopic frame 21 is deeply provided with the clamping rod 26 in an integrated forming mode, the cross sections of the clamping rod 26 and the clamping groove 25 are square, and the side length of the cross section of the clamping rod 26 is larger than the diameter of the telescopic rod 24. The length of the catching bar 26 and the catching groove 25 is equal to half the length of the telescopic through groove 14.

Referring to fig. 2, the reset piece 3 is a compression spring, the compression spring is installed in the protection tube 1, one end of the compression spring is connected with the inner side wall of the protection tube 1, and the other end of the compression spring is connected with the clamping rod 26. And one end of the compression spring connected with the inner side wall of the protective pipe 1 is the end of the compression spring far away from the end cover 11. When the catching bar 26 is located outside the catching groove 25, the compression spring is pressed to be deformed.

The implementation principle of the deep soil displacement measuring instrument in the embodiment of the application is as follows: the reset piece 3 pushes the expansion bracket 21 to move towards the side far away from the end cover 11, and when the expansion bracket 21 is far away from the end cover 11, the ponding detection unit 22 installed on the expansion bracket 21 is located at the position far away from the end cover 11. When people hold the protective tube 1 for detection, the accumulated water detection unit 22 installed on the expansion bracket 21 can contact with moisture and send out an alarm, so that certain reaction time can be reserved for people, and the probability that the soil displacement measuring instrument stretches into water and is damaged due to the fact that the soil displacement measuring instrument cannot react in time is effectively reduced. And the telescopic frame 21 can slide to the position adjacent to the end cover 11 along the telescopic through groove 14, the protective pipe 1 is not influenced to be detected, and the measuring accuracy is ensured. When the device is not used, the clamping rod 26 is located outside the clamping groove 25 by pushing the telescopic rod 24, and then the telescopic rod 24 is rotated, so that the clamping rod 26 is moved to the position where the clamping rod can not be embedded into the clamping groove 25, and the position of the telescopic frame 21 is fixed.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a deep soil body displacement measuring apparatu, includes pillar (1) and ponding detecting element (22), installs end cover (11), its characterized in that on pillar (1) bottom: the end cover (11) is provided with a telescopic piece (2) and a reset piece (3); the telescopic piece (2) comprises a telescopic frame (21) and a telescopic rod (24) fixedly installed on the telescopic frame (21), the telescopic frame (21) is arranged on one side, away from the protective pipe (1), of the end cover (11), the accumulated water detection unit (22) is installed on the telescopic frame (21), a telescopic through groove (14) is formed in the end cover (11), and the telescopic rod (24) penetrates through the telescopic through groove (14) and slides along the axis of the telescopic through groove (14); the reset piece (3) is arranged on the inner side of the protective tube (1) and can push the telescopic rod (24) to enable the telescopic frame (21) to move towards one side far away from the end cover (11).

2. The deep soil displacement measuring instrument of claim 1, wherein: expansion bracket (21) be the annular, the axis collineation of expansion bracket (21) and pillar (1), the external diameter of expansion bracket (21) is less than the external diameter of pillar (1), ponding detecting element (22) are installed in the inboard of expansion bracket (21).

3. The deep soil displacement measuring instrument of claim 2, wherein: the axis of telescopic link (24) and pillar (1) parallel, and telescopic link (24) are connected with the inside wall of expansion bracket (21), seted up annular dashpot (12) on end cover (11), and dashpot (12) embedded be equipped with cushion pad (13), flexible logical groove (14) are seted up along the inboard edge of dashpot (12).

4. The deep soil displacement measuring instrument of claim 3, wherein: the telescopic rods (24) are at least two, and the telescopic rods (24) are arranged at equal intervals along the inner side wall of the telescopic frame (21).

5. The deep soil displacement measuring instrument of claim 3, wherein: the telescopic rod (24) is rotatably arranged on the telescopic frame (21), and the rotating axis of the telescopic rod (24) is collinear with the axis of the telescopic rod (24); the terminal surface that expansion bracket (21) was kept away from in telescopic link (24) is the installation face, fixedly connected with joint pole (26) on the installation face of telescopic link (24), the cross section of joint pole (26) is greater than telescopic link (24), and when telescopic link (24) rotated, the projection position of joint pole (26) on the installation face changes, offer joint groove (25) that equal with joint pole (26) shape on the inside wall of flexible logical groove (14), and the one end of joint groove (25) and flexible logical groove (14) keep away from the one end coincidence of expansion bracket (21), joint pole (26) are rotatable and inlay and establish in joint groove (25).

6. The deep soil displacement measuring instrument of claim 5, wherein: the length of the telescopic through groove (14) of the telescopic rod (24) is equal, the length of the clamping groove (25) is equal to the length of one half of the telescopic through groove (14), and the length of the clamping rod (26) is equal to that of the clamping groove (25).

7. The deep soil displacement measuring instrument of claim 5, wherein: the reset piece (3) is a compression spring, one end of the compression spring, which is close to the end cover (11), is fixedly connected with the inner side wall of the protective pipe (1), and the other end of the compression spring is connected with the clamping rod (26).

8. The deep soil displacement measuring instrument of claim 7, wherein: when the clamping rod (26) is positioned outside the clamping groove (25), the length of the compression spring is smaller than the natural length of the compression spring.