CN104975618B - Pre-fastening moment adjustable tension mechanism, inclination measurement device and its application method - Google Patents

Abstract

The invention provides a kind of pre-fastening moment adjustable tension mechanism, inclination measurement device and its application method, belong to construction control field, for solving the problems, such as that inclination measurement device cannot adapt to different inclinometer pipe calibers.Wherein, inclination measurement device includes at least one probe, steel wire cable and plate reading, probe includes instrument cavity, lower cavity body, intermediate connecting rod and two groups of guide wheel strainers, pre-fastening moment adjustable tension mechanism includes piston, inner sleeve, outer sleeve, spring and adjusting cap, piston includes cylinder table and straight pin, inner sleeve is provided with linear guide slot, outer sleeve is provided with symmetric helix guide groove, straight pin successively passes through linear guide slot and symmetric helix guide groove, spring to be arranged in inner sleeve, and between cylinder table and adjusting cap.Pre-fastening moment adjustable tension mechanism can be such that the frictional force between the guide wheel of inclination measurement device and inclinometer pipe guide groove is in appropriate scope all the time, improve the adaptability of inclination measurement device, be effectively saved construction monitoring cost.

Description

Pre-fastening moment adjustable tension mechanism, inclination measurement device and its application method

Technical field

The present invention relates to construction control field, more particularly to a kind of deviational survey with pre-fastening moment adjustable tension mechanism Device and its application method.

Background technology

With the rapid development in city, the quantity and scale of foundation ditch are all in increase trend year by year, particularly big deep basal pit In recent years into geometric growth, therefore, the safety and stabilization of deep basal pit first have to what is considered in just turning into construction process One of key factor.Because foundation pit construction technique is to dig up the ground of a certain regional area, the balance of protolith soil structure is destroyed, Rock mass around foundation ditch will be squeezed to structure wall (abbreviation foundation pit enclosure wall, such as diaphram wall) of foundation pit enclosure wall etc. Pressure, causes the deformation of foundation pit enclosure wall, and with further deep-cutting for foundation ditch, this deformation will be increasing, if not to this Plant deformation to be controlled by, after certain limit is deformed more than, the pernicious security incident such as foundation pit collapse will be produced, so in foundation ditch The deformation of foundation pit enclosure wall is monitored in work progress, when the deformation of foundation pit enclosure wall is excessive, by changing support shaft The measures such as power reduce the displacement deformation of foundation pit enclosure body, it is ensured that the safety of foundation pit construction.

Foundation pit deformation monitoring means is mainly and is detected using inclinometer at present.Existing inclinometer it is main by probe, Plate reading, cable and the part of inclinometer pipe four composition；The plate reading can read the measurement data of probe, preserve and treatment measurement number Powered according to and to probe, inclinometer pipe is embedded in foundation pit enclosure within the walls in advance, probe is located in inclinometer pipe, probe passes through cable and plate reading Connection；When using, by manually above carrying or lower payout, will pop one's head in the diverse location that is respectively placed in the inclinometer pipe, come The deformation of the diverse location of the inclinometer pipe is measured respectively.On the one hand, probe includes two groups of guide wheel guiding mechanisms and installs There is the agent structure of inclinometer wiring board, every group of guide wheel guiding mechanism includes guide wheel connecting rod, two guide wheels and a torsion spring, Torsion spring is arranged on the center of guide wheel connecting rod, installs original state, makes the windup-degree θ 1 that torsion spring is certain, and now, torsion spring will Apply a pre-fastening moment M1 for determination to guide wheel connecting rod.In Practical Project, because engineering properties and requirement vary, Requirement to inclinometer pipe is also different, the most frequently used at present to have four kinds of specifications, is respectively φ 53, φ 65, φ 70 and φ 90, they it Between internal diameter and guide groove spacing it is all different.When deviational survey works, inclinometer pipe is inserted a probe into by external force, in the limitation of inclinometer pipe Under, the torsion spring in guide wheel guiding mechanism is further produced torsion, now torsion spring increases pre-fastening moment Δ M, the survey of different inner diameters The pre-fastening moment M=M1+ Δs M that inclined tube, the different pre-fastening moment increment Delta M of correspondence, therefore torsion spring are finally produced also can be different；When same When a kind of inclinometer is used to be monitored the inclinometer pipe of different inner diameters, some pre-fastening moments will necessarily occur greatly, some pretensions The small situation of torque；Pre-fastening moment crosses the frictional force of conference increase guide wheel and inclinometer pipe guide groove, the efficiency of influence inclinometer decentralization And quality, pulling force during increase lifting inclinometer suffered by cable, so as to cause inclinometer premature breakdown, reduce inclinometer and use Life-span, pretightning force is too small, and guide wheel can be caused effectively to be contacted with inclinometer pipe guide groove, influences inclinometer positioning precision, so that Influence the certainty of measurement of inclinometer.On the other hand, existing artificial lifting detection method, measurement effect artificial due to depending on unduly Rate is low, certainty of measurement is difficult to control to, and the efficient of modern construction measurement, high-quality, high-precision requirement have increasingly been not suitable with.

In sum, it is the inclinometer pipe of adaptation different inner diameters, researches and develops a kind of adjustable inclination measurement device of pre-fastening moment and its make Those skilled in the art's technical barrier in the urgent need to address is had become with method.

The content of the invention

It is an object of the invention to provide a kind of deviational survey dress of adjustable, the suitable various different inner diameters inclinometer pipes of pre-fastening moment Put, to solve the problems, such as that existing inclinometer can not be applicable different inner diameters inclinometer pipe；Meanwhile, the present invention also provides a kind of inclination measurement device Application method, to solve the problems such as existing artificial lifting probe method measurement efficiency is low, certainty of measurement is difficult to control to, meet construction The high efficiency of control, the requirement of high-quality and low cost.

In order to solve the above technical problems, the present invention provides following technical scheme：

A kind of pre-fastening moment adjustable tension mechanism, it is characterised in that including piston, inner sleeve, outer sleeve, spring and tune Whole cap, the piston includes cylinder table and straight pin, and the straight pin is distributed in the cylinder table lateral surface, the overcoat jacket casing The outside of the inner sleeve is located at, the inner sleeve is provided with linear guide slot, and the outer sleeve is provided with helical guide groove, the circle Pin successively passes through the linear guide slot and the helical guide groove, the cylinder table to be located in the inner sleeve tube inner chamber, the bullet Spring is arranged in the inner sleeve, and between the cylinder table and the adjusting cap.

Optionally, the adjusting cap includes a cylinder skirt and an external screw thread pipe, and the external screw thread pipe is interior with described The threaded one end connection of sleeve.

Optionally, two straight-through guide grooves are symmetrical arranged on the inner sleeve, two is symmetrical arranged on the outer sleeve The helical guide groove, the lead angle of the helical guide groove is 20 ° -45 °.

Optionally, the cylinder table is hierarchic structure, including big cylinder and small cylinder, the big cylinder with it is described Inner sleeve minor diameter fit, the small cylinder coordinates with the spring inside diameter.

Optionally, the inner sleeve and the outer sleeve material be engineering plastics or stainless steel or to steel anti-corrosion, Antirust treatment.

The present invention also invented a kind of inclination measurement device, including at least one probe, steel wire cable and plate reading, the spy Head is connected by the steel wire cable with the plate reading, and described probe includes instrument cavity, lower cavity body, intermediate connecting rod with And two groups of guide wheel strainers, the steel wire cable includes power line, data wire and steel wire rope, the upper instrument cavity and institute Lower cavity body is stated respectively positioned at the two ends of the intermediate connecting rod, and two groups of guide wheel strainers are respectively arranged at the centre and connect On the diverse location of bar, the guide wheel strainer includes described pre-fastening moment adjustable tension mechanism, guide wheel connecting rod and leads Wheel, the guide wheel is connected to the two ends of the guide wheel connecting rod by bearing pin, and the guide wheel connecting rod can with the pre-fastening moment The outer sleeve in strainer is adjusted to be fixedly connected, the outer sleeve is arranged at the guide wheel connecting rod center.

Optionally, the quantity of the probe is multiple, and multiple probe is connected by the steel wire cable, each institute Stating probe also includes dipmeter wiring board, two water joints, two joint connection sealing devices and two steel wire lock tightening dresses Put；The dipmeter wiring board is arranged in the upper instrument cavity, and two water joints connect with the corresponding joint Connect sealing device threaded connection, described two water joints respectively positioned at the corresponding upper instrument cavity upper end and it is described under The lower end of cavity body, one end of two joint connection sealing devices is deep into the correspondence upper instrument cavity and described respectively In lower cavity body, two steel wire lock tightening devices are individually fixed in one end that the corresponding joint connects sealing device, institute State steel wire cable and be each passed through the corresponding water joint and extend into the corresponding upper instrument cavity and the lower cavity body Inner chamber in, the steel wire rope is locked by the corresponding water joint, the data wire and the power line and the inclination Instrument wiring board is connected.

Optionally, the probe also includes cable duct tube, and the cable duct tube be arranged in parallel with the intermediate connecting rod, two ends It is connected with the upper instrument cavity and the lower cavity body respectively, stretches into the power line and the data of the lower cavity body Line is connected along the cable duct tube with the dipmeter wiring board in the upper instrument cavity.

Optionally, the steel wire lock tightening device includes fixed block, movable block and attachment screw, the fixed block and described Semicircular arc groove is provided with the face that movable block is combined, there is screwed hole, the connection spiral shell on the fixed block and the movable block Be fixed on the movable block on the fixed block through the screwed hole by nail, fixed block described in the steel wire penetrating and described The arc-shaped slot of movable block.

The present invention also provides a kind of application method of above-mentioned inclination measurement device, comprises the following steps：

The first step：The adjusting cap in each described probe is rotated, the pre compressed magnitude of the spring is adjusted, by described Piston applies a pre-fastening moment to the outer sleeve；

Second step：The guide groove that inclinometer pipe inside a pair of opposing is stretched into the bottom popped one's head in described in bottom will be located at In, apply a moment of face to the guide wheel strainer positioned at the connecting rod bottom, make the level interval of the guide wheel small In equal to the guide groove spacing and described by being snapped in positioned at the guide wheel of the guide wheel strainer of the connecting rod bottom In guide groove；

3rd step：Probe in the second step is continued to stretch into the inclinometer pipe, to positioned at the connecting rod top The guide wheel strainer applies a moment of face, makes the level interval of the guide wheel less than or equal to the guide groove spacing, and by position Snapped in the guide groove in the guide wheel of the guide wheel strainer on the connecting rod top, make the whole probe insertion In the inclinometer pipe；

4th step：If the probe has multiple, repeat the above steps two to step 3, until all of probe loads In inclinometer pipe.

In terms of existing technologies, the present invention provide with pre-fastening moment adjustable tension mechanism inclination measurement device and its make With method, at least with following beneficial technique effect：

The use versatility of inclination measurement device is substantially increased, service life is extended, engineering construction monitoring cost is reduced： The inclination measurement device according to inclinometer pipe inner diameter values used in Practical Project, can pre-adjust the pre compressed magnitude of spring, make spy The frictional force produced between the guide wheel and the guide groove of inclinometer pipe of head is in a rational scope all the time, expands inclination measurement device Range of application, also further protects cable and inclination measurement device, extends actual life, so as to greatly reduce engineering Construction monitoring cost.

Effectively increase monitoring efficiency and quality：The inclination measurement device application method that the present invention is provided can become to foundation ditch Shape carries out monitor in real time, instead of existing artificial lifting probe method, has liberated operator, improves the operating efficiency of detection； The detection method that the present invention is provided simultaneously can realize automatic monitoring, read Monitoring Data automatically, and manual operation can be avoided to produce Raw error, improves the precision and quality of monitoring.

Brief description of the drawings

Fig. 1 is the structural representation of the inclination measurement device of one embodiment of the invention；

Fig. 2 is the pre-fastening moment adjustable tension mechanism schematic diagram of one embodiment of the invention；

Fig. 3 is Fig. 2 along A-A sectional views；

Fig. 4 is the pre-fastening moment adjustable tension mechanism 3-D view of one embodiment of the invention；

Fig. 5 is the piston 3-D view of one embodiment of the invention；

Fig. 6 is the sonde configuration schematic diagram of one embodiment of the invention；

Fig. 7 is the probe partial sectional view of one embodiment of the invention；

Fig. 8 is used in different inclinometer pipe service condition structural representations for the probe of one embodiment of the invention；

Fig. 9 is the steel wire rope locking device of one embodiment of the invention；

Figure 10 is Fig. 6 right views；

In figure：100- inclination measurement devices, 200- inclinometer pipes, 1- probes, 2- plate readings, 3- steel wire cables, 4- guide wheel tensioning devices Cavity body, 15- water joints, 16- under structure, 11- joints connection sealing device, the upper instrument cavitys of 12-, 13- intermediate connecting rods, 14- Dipmeter wiring board, 17- steel wire ropes locking device, 18- cable duct tubes, 31- steel wire ropes, 32- data wires, 33- power lines, 41- Guide wheel, 42- guide wheels connecting rod, 43- adjustable spiral guide types guidance system, 111- cable connections set, 112- glands, 113- sealings Circle, 171- screws, 172- fixed blocks, 173- movable blocks, 431- pistons, 432- inner sleeves, 433- outer sleeves, 434- springs, 435- adjusting caps, 431a- cylinder tables, 431b- straight pins, 435a- cylinders skirt, 435b- external screw thread pipes.

Specific embodiment

Filled with pre-fastening moment adjustable tension mechanism, deviational survey to proposed by the present invention below in conjunction with the drawings and specific embodiments Put and its application method is described in further detail.According to following explanation and claims, advantages and features of the invention will Become apparent from.It should be noted that, accompanying drawing using very simplify in the form of and use non-accurately ratio, be only used to conveniently, it is bright The purpose of the embodiment of the present invention is aided in illustrating clearly.

With reference to Fig. 2, Fig. 3, Fig. 4 and Fig. 5, the pre-fastening moment adjustable tension mechanism 43 of one embodiment of the invention includes piston 431st, inner sleeve 432, outer sleeve 433, spring 434 and adjusting cap 435；Piston 431 includes cylinder table 431a and straight pin 431b, straight pin 431b are distributed in cylinder table 431a lateral surfaces and are fixedly connected with cylinder table 431a；In outer sleeve 433 is set in The outside of sleeve 432, the end face of outer sleeve 433 is leaned against on a step surface of inner sleeve 432, and outer sleeve 433 can be around inner sleeve 432 center rotatings of cylinder；Inner sleeve 432 is provided with linear guide slot, and outer sleeve 433 is provided with helical guide groove, the quantity of linear guide slot It is corresponding with the quantity of helical guide groove and equal；Straight pin 431b successively passes through one group of corresponding linear guide slot and helical guide groove, Under the restriction of helical guide groove, straight pin 431b makees spiral movement relative to outer sleeve 433, meanwhile, under linear guide slot restriction, circle Pin 431b moves linearly relative to inner sleeve 432.Finally, outer sleeve 433 rotates relative to inner sleeve 432, circle Pin 431b band pistons 431 are moved linearly relative to inner sleeve 432, and cylinder table 431a is located in the inner chamber of inner sleeve 432 simultaneously Coordinate with the internal diameter gap of inner sleeve 432, cylinder table 431a can be moved freely in the inner chamber of inner sleeve 432, and spring 434 is arranged on In inner sleeve 432, and it is between cylinder table 431a and the adjusting cap 435, piston 431 does directly in the inner chamber of inner sleeve 432 Line is moved, and by compression/trip spring 434, according to Newton's third law and Hooke theorem, spring 434 will apply one to piston 431 Individual reverse elastic force, finally, piston 431 will apply a torque opposite with the rotation direction of outer sleeve 433 to outer sleeve 433, Outer sleeve 433 is set to have the trend for restPosing.

Continuing with Fig. 2, Fig. 3 and Fig. 4, adjusting cap 435 includes an a cylinder skirt 435a and external screw thread pipe 435b, outward Screw thread pipe 435b is connected with the threaded one end of inner sleeve 432, and the internal diameter of cylinder skirt 435a is slightly smaller than the outer of outer sleeve 433 Footpath, can limit the axial float of outer sleeve 433, the spring of excess compression 434 be prevented, by adjusting external screw thread pipe 435b and inner sleeve Cylinder 432 is threadedly coupled length, can set the initial compression amount of spring 434, determines bounce of the spring 434 to piston 431, most The initial pre-fastening moment M1 ' of outer sleeve 433 is drawn eventually.

Continuing with Fig. 2, Fig. 3 and Fig. 4, two symmetrically arranged linear guide slots are designed with the cylinder of inner sleeve 432, It is designed with two symmetrical helical guide grooves on the cylinder of outer sleeve 433, two symmetrically arranged linear guide slots and helical guide groove can be with Make piston 431 mobile steady in inner sleeve 432, it is to avoid to be deflected because of discontinuity, the failure such as jam, meanwhile, because It is guide groove negligible amounts, greatly reduces processing and manufacturing difficulty, reduces manufacturing cost；At the same time, the spiral of helical guide groove Lift angle θ is generally 20 ° -45 °, according to Newton classic mechanics relevant knowledge, in order to ensure that straight pin 431b can be in helical guide groove Interior slip, necessary condition is that the sine (tan θ) of lead angle is more than friction coefficient μ (0.25), is computed, 14 ° of θ ＞, it is considered to plus The external factor such as work precision and construction environment, actually takes lead angle θ >=20 °；In order that the rectilinear movement distance of piston 431 with The angle that outer sleeve 433 is rotated is in a rational scope, and the lead angle of helical guide groove is no more than 45 °.

Continuing with Fig. 2, Fig. 3, Fig. 4 and Fig. 5, cylinder table 431a is hierarchic structure, including big cylinder and small cylinder, Big cylinder coordinates with the gap of inner sleeve 432, it is ensured that cylinder table 431a can be moved in inner sleeve 432 along axis, Small cylinder and the internal diameter interference fits of spring 434, can avoid spring 434 from shifting in use, cause piston to be received Power is uneven and jam phenomenon occurs.

Continuing with Fig. 2, Fig. 3 and Fig. 4, it is preferred that inner sleeve 432 and the material of outer sleeve 433 be engineering plastics or Stainless steel does anti-corrosion, antirust treatment to steel, and inner sleeve 432 and outer sleeve 433 can be avoided unlikely in a humidity environment In getting rusty, it is ensured that pre-fastening moment adjustable tension mechanism can still work well in severe underground environment.

With reference to Fig. 1, Fig. 6, Fig. 7, Fig. 8 and Figure 10, one embodiment of the invention discloses a kind of inclination measurement device 100, including extremely A few probe 1, plate reading 2, steel wire cable 3, will to the structure wall of foundation pit enclosure wall (abbreviation foundation pit enclosure wall, for example Diaphram wall) when being monitored, probe 1 is inserted into survey by pre-plugged inclinometer pipe 200 in the structure wall of foundation pit enclosure wall In inclined tube 200, the deformation data of 1 monitoring of popping one's head in is transferred to plate reading 2 by steel wire cable 3 connection probe 1 and plate reading 2.Probe 1 includes upper instrument cavity 12, lower cavity body 14, intermediate connecting rod 13 and two groups of guide wheel strainers 4, the two ends of intermediate connecting rod 13 It is designed to fixing structure, the bottom surface of upper instrument cavity 12 and lower cavity body 14 is all designed with rectangular through-hole, the upper He of instrument cavity 12 The rectangular through-hole of the bottom surface of lower cavity body 14 coordinates with the seam of intermediate connecting rod 13, is symmetrically set in the upper and lower part of intermediate connecting rod 13 Two straight-through circular holes are equipped with, guide wheel strainer 4 is arranged on straight-through circular hole and is welded and fixed.Each guide wheel strainer 4 is wrapped Pre-fastening moment adjustable tension mechanism 43, guide wheel connecting rod 42 and two guide wheels 41 are included, two guide wheels 41 are by pin and guide wheel connecting rod 42 two ends are connected, and guide wheel 41 can freely be rotated around pin, outer sleeve in guide wheel connecting rod 42 and pre-fastening moment adjustable tension mechanism 43 433 outer wall is fixedly connected, and outer sleeve 433 is in the center of guide wheel connecting rod 42, it is ensured that rotate an angle in outer sleeve 433 When, the distance projection in the horizontal direction of the movement of guide wheel 41 at the two ends of guide wheel connecting rod 42 is equal and in opposite direction, in making probe 1 The heart all the time with the center superposition of inclinometer pipe 200, probe 1 angle of inclination be exactly inclinometer pipe 200 angle of inclination.

Continuing with Fig. 1 and Fig. 7, it is preferred that inclination measurement device 100 includes n 1 (n >=2) of probe, and two mutually adjacent Connected with steel wire cable line 3 between probe 1, each probe 1 also includes the water joint 15, two of dipmeter wiring board 16, two Joint connects sealing device 11 and two steel wire lock tightening devices 17；Dipmeter wiring board 16 is assigned into instrument cavity 12 Draw-in groove in, have a rectangle blind hole (not shown) in the floor design of upper instrument cavity 12, the width and dipmeter of rectangle blind hole The thickness of wiring board 16 quite, can be accurately positioned and block the position of dipmeter wiring board 16, prevent dipmeter wiring board 16 from existing There is position skew in monitoring, influence the authenticity of measurement data.One end of two joint connection sealing devices 11 is also divided It is not inserted into corresponding instrument cavity 12 and lower cavity body 14, water joint 15 is connected the upper surface of sealing device 11 with joint Screwed hole thread seal is connected, and steel wire lock tightening device 17 is arranged on the lower surface of joint connection sealing device 11, steel wire lock tightening Device 17 includes two screws 171, fixed block 172 and sliding shoes 173, and fixed block 172 and movable block 173 are all designed with semi arch Groove, fixed block 172 is fixed on joint connection sealing device 11 lower surface；Steel wire cable 3 divides after passing through water joint 15 Into steel wire rope 31, data wire 32 and the part of power line 33 3, after three parts all connect the centre bore of sealing device 11 through joint, Adjusting screw 171, makes fixed block 172 and the clamping steel wire rope 31 of sliding shoe 173, the work of clamped wire rope 31 is more facilitated, Fast, steel wire rope 31 is also protected well；Data wire 32 and power line 33 are electrically connected with dipmeter wiring board 16 respectively, to incline The oblique offer power supply of instrument wiring board 16 and the data transfer that will be monitored are popped one's head in upper one.

With reference to Figure 10, probe 1 also includes cable duct tube 18, and cable duct tube 18 is be arranged in parallel with intermediate connecting rod 13, and cable is led The two ends of pipe 18 are inserted respectively on the bottom surface of instrument cavity 12 and lower cavity body 14 in corresponding hole and are fixed welding, The data wire 32 and power line 33 extending into lower cavity body 14 are by the dipmeter in cable duct tube 18 and upper instrument cavity 12 Wiring board 16 is connected, and 1 data measured of next probe passes to pop one's head in 1, one by one past by data wire 32 Upload, eventually through the uppermost data transfer that measures all connected probes 1 in inclinometer pipe of probe 1 to plate reading 2, together When, electric energy is passed to next probe 1 by a upper probe 1 by power line 33, and down biography one by one is most electric at last Nethermost probe 1 can be supplied, has been ensured for each 1 normal work of probe provides the energy, the cross sectional shape of cable duct tube 18 It is rectangle, data wire 32 and power line 33 can be laid side by side in cable duct tube 18, and intermediate connecting rod 13 can be made full use of inclined The small space that heart arrangement is produced, can effectively reduce the appearance and size of probe 1, further expand the applicable model of probe 1 Enclose.

Continuing with Fig. 1 to Figure 10, the application method of above-mentioned inclination measurement device is illustrated, comprised the following steps：

The first step：The adjusting cap 435 in each probe 1 is rotated, the pre compressed magnitude of the spring 434 is adjusted, passed through The piston 431 applies a pre-fastening moment to the outer sleeve 433；

Incorporation engineering actual conditions need, it is determined that rational friction force value between guide wheel 41 and the inwall of inclinometer pipe 200, so that The initial torque M1 of pre-fastening moment adjustable tension mechanism 43 is calculated, by the anti-precompressed for extrapolating spring 434 of initial torque M1 Contracting amount and adjusting cap 435 are threadedly coupled the number of turns with inner sleeve 432；

Second step：Stretch into the guide groove of the inside a pair of opposing of an inclinometer pipe 200 in the bottom that bottom probe 1 will be located at In, apply a moment of face M2 to the guide wheel strainer 4 positioned at the bottom of intermediate connecting rod 13, make one group of level interval H of guide wheel 41 Less than or equal to a pair of guide groove spacing of inclinometer pipe 200, and will be led positioned at described in the guide wheel strainer 4 of the bottom of intermediate connecting rod 13 Wheel 41 is snapped in a pair of guide grooves of inclinometer pipe 200；

3rd step：Probe 1 in second step is continued to stretch into inclinometer pipe 200, to the guide wheel positioned at the top of intermediate connecting rod 13 Strainer 4 applies a moment of face M2, makes the level interval of guide wheel 41 less than or equal to a pair of guide groove spacing of inclinometer pipe 200, and The guide wheel 41 for being located at the guide wheel strainer 4 on the top of intermediate connecting rod 13 is snapped in a pair of guide grooves of inclinometer pipe 200, makes whole spy In first 1 insertion inclinometer pipe 200；

4th step：If probe 1 has multiple, repeat the above steps two to step 3, until all of probe 1 loads inclinometer pipe In 200.

In sum, the present invention provides pre-fastening moment adjustable tension mechanism 43, and delicate structure can be adjusted according to actual needs The position of whole adjusting cap 435, changes the decrement of spring 434, overcoat is obtained rational pre-fastening moment, assembly pretightening with 433 The inclination measurement device 100 of torque adjustable tension mechanism 43, can adjust according to the internal diameter of engineering inclinometer pipe 200 used in practice The pre compressed magnitude of spring 434 so that the frictional force in different inner diameters inclinometer pipe 200 between guide wheel 41 and inclinometer pipe 200 is all located In a quite reasonable value range, the monitoring of foundation pit deformation is facilitated, in the case where certainty of measurement is met to greatest extent Protect steel wire cable 3 and inclination measurement device 100, significantly there is provided the range of application of inclination measurement device 100, reduce engineering monitoring Cost；Additionally, the application method of the inclination measurement device 100 that the present invention is provided, it is to avoid the artificial unstable factor of existing czochralski method, Improve the efficiency and operating accuracy of engineering monitoring, be adapted to modern construction measurement efficient, high-quality, it is high-precision will Ask.

Foregoing description is only the description to present pre-ferred embodiments, not to any restriction of the scope of the invention, this hair Any change, modification that the those of ordinary skill in bright field does according to the disclosure above content, belong to the protection of claims Scope.

Claims (10)

1. a kind of pre-fastening moment adjustable tension mechanism, it is characterised in that including piston, inner sleeve, outer sleeve, spring and adjustment Cap, the piston includes cylinder table and straight pin, and the straight pin is distributed in the cylinder table lateral surface, and the outer sleeve is arranged In the outside of the inner sleeve, the inner sleeve is provided with linear guide slot, and the outer sleeve is provided with helical guide groove, the cylinder Pin successively passes through the linear guide slot and the helical guide groove, the cylinder table to be located in the inner sleeve tube inner chamber, the spring It is arranged in the inner sleeve, and between the cylinder table and the adjusting cap.

2. pre-fastening moment adjustable tension mechanism as claimed in claim 1, it is characterised in that the adjusting cap includes a cylindrical skirt Seat and an external screw thread pipe, the external screw thread pipe are connected with the threaded one end of the inner sleeve.

3. pre-fastening moment adjustable tension mechanism as claimed in claim 1, it is characterised in that be symmetrical arranged two on the inner sleeve Linear guide slot described in bar, is symmetrical arranged two helical guide grooves on the outer sleeve.

4. the pre-fastening moment adjustable tension mechanism as any one of claims 1 to 3, it is characterised in that the cylinder table is Hierarchic structure, including big cylinder and small cylinder, the big cylinder and the inner sleeve minor diameter fit, the small cylinder Coordinate with the spring inside diameter.

5. pre-fastening moment adjustable tension mechanism as claimed in claim 4, it is characterised in that the inner sleeve and the outer sleeve material Material is engineering plastics or stainless steel or does the steel of anti-corrosion, antirust treatment.

6. a kind of inclination measurement device, it is characterised in that including at least one probe, steel wire cable and plate reading, the probe leads to Cross the steel wire cable to be connected with the plate reading, the probe includes instrument cavity, lower cavity body, intermediate connecting rod and two Group guide wheel strainer, the steel wire cable include power line, data wire and steel wire rope, the upper instrument cavity and it is described under Respectively positioned at the two ends of the intermediate connecting rod, two groups of guide wheel strainers are respectively arranged at the intermediate connecting rod to cavity body On diverse location, the guide wheel strainer includes the adjustable tensioning of pre-fastening moment as described in any one in claim 1-5 Mechanism, guide wheel connecting rod and guide wheel, the guide wheel are connected to the two ends of the guide wheel connecting rod by bearing pin, and the guide wheel connects Bar is fixedly connected with the outer sleeve in the pre-fastening moment adjustable tension mechanism, and the outer sleeve is arranged at the guide wheel and connects Bar center.

7. inclination measurement device as claimed in claim 6, it is characterised in that the quantity of the probe is multiple, and multiple spies Head is connected by the steel wire cable, and each described probe also includes that dipmeter wiring board, two water joints, two joints connect Connect sealing device and two steel wire rope locking devices；The dipmeter wiring board is arranged in the upper instrument cavity, two The water joint is located at correspondence respectively with the corresponding joint connection sealing device threaded connection, described two water joints Described upper instrument cavity upper end and the lower end of the lower cavity body, two one end difference of joints connection sealing devices It is deep into the correspondence upper instrument cavity and the lower cavity body, two steel wire rope locking devices are individually fixed in correspondence The joint connect sealing device one end, the steel wire cable be each passed through the corresponding water joint extend into correspondence Described upper instrument cavity and the lower cavity body inner chamber in, the steel wire rope is locked by the corresponding water joint, institute Data wire and the power line is stated to be connected with the dipmeter wiring board.

8. inclination measurement device as claimed in claim 7, it is characterised in that the probe also includes：Cable duct tube, the cable is led Pipe be arranged in parallel with the intermediate connecting rod, and two ends are connected with the upper instrument cavity and the lower cavity body respectively, the power supply Line and the data wire are located in the cable duct tube.

9. inclination measurement device as claimed in claim 8, it is characterised in that the steel wire rope locking device includes fixed block, movable block And attachment screw, deep-slotted chip breaker, the fixed block and the work are provided with the face that the fixed block and the movable block are combined There is screwed hole on motion block, be fixed on the movable block on the fixed block through the screwed hole by the attachment screw, described The deep-slotted chip breaker of fixed block described in steel wire penetrating and the movable block.

10. the application method of the inclination measurement device as described in claim any one of 6-9, it is characterised in that comprise the following steps：

The first step：The adjusting cap in each described probe is rotated, the pre compressed magnitude of the spring is adjusted, by the piston Apply a pre-fastening moment to the outer sleeve；

Second step：The guide groove that inclinometer pipe inside a pair of opposing described in is stretched into the bottom popped one's head in described in bottom will be located at In, apply a moment of face to the guide wheel strainer positioned at the intermediate connecting rod bottom, make the level interval of the guide wheel Less than or equal to the guide groove spacing, and the guide wheel for being located at the guide wheel strainer of the intermediate connecting rod bottom is snapped in In the guide groove；

3rd step：Probe in the second step is continued to stretch into the inclinometer pipe, to the institute positioned at the intermediate connecting rod top State guide wheel strainer and apply a moment of face, make the level interval of the guide wheel less than or equal to the guide groove spacing, and will be located at The guide wheel of the guide wheel strainer on the intermediate connecting rod top is snapped in the guide groove, makes the whole probe insertion In the inclinometer pipe；

4th step：If the probe has multiple, repeat the above steps two to step 3, until all of probe loads institute In stating inclinometer pipe.