CN107588706A - A kind of construction PCCP bore measuring appliances - Google Patents

Abstract

The invention discloses a kind of construction PCCP bore measuring appliances, position-limiting drum including fixed cylinder and in fixed cylinder, the lower rotation of the position-limiting drum is provided with steel ball, and the steel ball locally protrudes from the bottom of fixed cylinder, spring is installed in fixed cylinder, also include the movable block and base of truncated cone-shaped being connected with the movable end of the spring, the movable block is connected by graduated scale with base, multiple protruding portion is provided with the outer wall of movable block, multiple grooves being engaged with protuberance are offered on the inwall of the fixed cylinder, rotated on the upper surface of the base and be provided with ball.When the straight line where the axis and pipe diameter of fixed cylinder coincides, read the data on graduated scale, the data are that movable block does the displacement that linear motion occurs, by calculating, i.e. the air line distance of steel ball bottom and ball top, which subtracts the straight-line displacement that movable block occurs, can draw the size of internal diameter of the pipeline.

Description

A kind of construction PCCP bore measuring appliances

Technical field

The present invention relates to the realm of building construction, in particular to a kind of construction PCCP bore measuring appliances.

Background technology

PCCP pipes are the strong concrete tube core winding compressor wires with steel cylinder, and protection is used as using cement mortar Layer, welded together with steel cylinder using steel bell and spigot, the fluted flexibility that slidingtype cushion rubber is formd with cushion rubber of bell and spigot connects Head, it is the composite construction of steel plate, concrete, high tensile steel wire and cement mortar different materials composition, has steel and concrete each From characteristic.Prestressed concrete cylinder pipe has compound structure, bears that interior external pressure is higher, joint tighness is good, antidetonation energy Power is strong, the characteristic such as easy to maintenance, of interest by engineering circles, is widely used in long interval water conveying tunnel, pressure inverted-siphon, city supply Hydraulic Projects, industry pressure water conveyer pipeline, power plant cycle Hydraulic Projects sewer pipe, pressure blowdown main etc..Compared with conventional tubing, PCCP has applied widely, and the economic life is long, anti-seismic performance is good, easy for installation, operation expenditure is low, substantially water-tight etc. excellent Point.At present after the completion of the production of PCCP pipelines, generally pipe internal diameter and socket ovality are measured using inside micrometer. Inside micrometer is made up of micrometer head and extension bar, is turned because micrometer head armrest is dynamic and is carried out varying dimensions, inconvenient for operation, reading It is not directly perceived, it is fragile in high-frequency service condition.And inside micrometer acquisition price is higher.

The content of the invention

It is convenient to the fast of internal diameter of the pipeline it is an object of the invention to provide a kind of construction PCCP bore measuring appliances Speed measurement reduces measurement error simultaneously.

The purpose of the present invention is achieved through the following technical solutions：

A kind of construction PCCP bore measuring appliances, including fixed cylinder and the position-limiting drum in fixed cylinder, The lower rotation of the position-limiting drum is provided with steel ball, and the steel ball locally protrudes from the bottom of fixed cylinder, in fixed cylinder Spring is installed, includes the movable block and base of the truncated cone-shaped being connected with the movable end of the spring, the movable block passes through Graduated scale is connected with base, and multiple protruding portion is provided with the outer wall of movable block, is offered on the inwall of the fixed cylinder more The individual groove being engaged with protuberance, rotated on the upper surface of the base and be provided with ball, work is provided with the base Dynamic chamber, the bottom of movable chamber is be hinged to be provided with U-shaped support member, and two movable ends of U-shaped support member are through base, ball position Between two movable ends of U-shaped support member, two pressure sensors, the pressure sensing are fixed with the inwall of movable chamber The both ends of device face pressure sensor horizontal component, the leg that end is in circular arc is additionally provided with the both sides of steel ball.The present invention During work, laterally or fixed cylinder can be placed into inner-walls of duct by longitudinal direction, and the station for adjusting fixed cylinder is allowed to keep vertical Or it is horizontal, contacted respectively with inner-walls of duct positioned at the ball of base top and the steel ball of fixed cylinder bottom, graduated scale by Movable block is driven to be moved along a straight line in fixed cylinder after the extruding of inner-walls of duct；It is mobile when movable block is moved in position-limiting drum BOB(beginning of block) is compressed to spring, and movable block is up big and down small truncated conical shape, is fixed with the outer wall of movable block more Individual protuberance, while multiple grooves being engaged with protuberance are offered in position-limiting drum, i.e., movable block is under the guiding of groove Continue to move down, effectively prevent the graduated scale in measurement process and sidesway occurs in fixed cylinder, that is, prevent what graduated scale from measuring The internal diameter size of the non-pipeline of data but the higher size in internal diameter of the pipeline；When straight where the axis and pipe diameter of fixed cylinder When line coincides, the data on graduated scale are read, the data are that movable block does the displacement that linear motion occurs, by calculating, i.e., The air line distance on steel ball bottom and ball top, which subtracts the straight-line displacement that movable block occurs, can draw the size of internal diameter of the pipeline.

Wherein, it is the level or right angle setting that further speed up device on inner-walls of duct, the present invention opens in base Provided with movable chamber, the both ends of the be hinged U-shaped support member being arranged in movable chamber can be realized with the movement of ball to be moved up and down, then The both sides of steel ball be fixed with end be circular arc leg, when device is integrally placed it is horizontal or vertical when, the work of U-shaped support member The surface of moved end and the top of ball, and the end of steel ball and leg completely attach to inner-walls of duct respectively, and U-shaped support member Both ends keep balance, and the bottom of U-shaped support member horizontal component will not be in contact with pressure sensor；When device is overall When placement is unsatisfactory for horizontal or vertical, the both ends of the both ends force unbalance, i.e. U-shaped support member horizontal component of U-shaped support member For a moment with pressure sensor contacts, pressure sensor by its force-bearing situation spread out of for the timely identification device of operating personnel it is specific Placement location, facilitate it to adjust in time, avoid fixed cylinder and base shifts and causes the data error of measurement bigger than normal.

Also include jacking post, the both ends of the jacking post are connected with movable block, base respectively, and the graduated scale is rotated and set Put on jacking post., it is necessary to carry out certain be adjusted to ensure that to ball and steel ball after fixed cylinder is placed in inner-walls of duct Device is overall to be kept overlapping with the diameter of pipeline, therefore graduated scale reading difficulty increases after adjustment, it is of the invention in movable block and Jacking post is equipped between base, graduated scale is rotatably arranged on jacking post, and graduated scale can be directly rotated to ensure in reading Its good observation visual angle, the quick progress being convenient for measuring.

Also include displacement transducer, institute's displacement sensors are fixed on the bottom of movable block.Locally needed more in pipeline During accurate measurement, the displacement transducer positioned at movable block bottom can accurately measure the distance that moves down of movable block, by with quarter Reading on degree chi compares, and after multiple measurement, the value minimum by the way that an error is calculated, can meet to measure need Ask.

The present invention compared with prior art, has the following advantages and advantages：

When movable block is moved in position-limiting drum, mobile BOB(beginning of block) is compressed the present invention to spring, and movable block is Up big and down small truncated conical shape, multiple protruding portion is fixed with the outer wall of movable block, while offered in position-limiting drum multiple The groove being engaged with protuberance, i.e. movable block continue to move down under the guiding of groove, effectively prevent and are carved in measurement process Sidesway occurs in fixed cylinder for degree chi, that is, prevents the internal diameter size of the non-pipeline of data that graduated scale is measured but higher in pipeline The size of internal diameter；When the straight line where the axis and pipe diameter of fixed cylinder coincides, the data on graduated scale, the number are read According to the displacement that linear motion generation is done for movable block, by calculating, i.e. the air line distance of steel ball bottom and ball top subtracts shifting The straight-line displacement that motion block occurs can draw the size of internal diameter of the pipeline；, it is necessary to ball after fixed cylinder is placed in inner-walls of duct Carrying out certain being adjusted to ensure that with steel ball, device entirety keeps overlapping with the diameter of pipeline, therefore graduated scale reading after adjustment Difficulty increases, and the present invention is equipped with jacking post between movable block and base, and graduated scale is rotatably arranged on jacking post, in reading When can directly rotate graduated scale to ensure its good observation visual angle, the quick progress being convenient for measuring.

Brief description of the drawings

Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, forms one of the application Point, do not form the restriction to the embodiment of the present invention.In the accompanying drawings：

Fig. 1 is schematic structural view of the invention；

Fig. 2 is the sectional view of movable block.

Mark and corresponding parts title in accompanying drawing：

1- balls, 2- bases, 3- jackings post, 4- graduated scales, 5- fixed cylinders, 6- movable blocks, 7- protuberances, 8- position-limiting drums, 9- springs, 10- steel balls, 11- displacement transducers, 12-U shapes support member, 13- pressure sensors, 14- legs.

Embodiment

For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment and accompanying drawing, to this Invention is described in further detail, and exemplary embodiment of the invention and its explanation are only used for explaining the present invention, do not make For limitation of the invention.

Embodiment 1

As depicted in figs. 1 and 2, the present embodiment includes fixed cylinder 5 and the position-limiting drum 8 in fixed cylinder 5, described The lower rotation of position-limiting drum 8 is provided with steel ball 10, and the local bottom for protruding from fixed cylinder 5 of the steel ball 10, in fixed cylinder 5 Spring 9 is installed, includes the movable block 6 and base 2 of the truncated cone-shaped being connected with the movable end of the spring 9, the movable block 6 It is connected by graduated scale 4 with base 2, is provided with multiple protruding portion 7 on the outer wall of movable block 6, on the inwall of the fixed cylinder 5 Multiple grooves being engaged with protuberance 7 are offered, is rotated on the upper surface of the base 2 and is provided with ball 1, at the bottom Movable chamber is provided with seat 2, the bottom of movable chamber is be hinged to be provided with U-shaped support member 12, and two movable ends of U-shaped support member 12 pass through Base 2 is through at, ball 1 is located between two movable ends of U-shaped support member 12, and two pressure are fixed with the inwall of movable chamber Sensor 13, the both ends of the horizontal component of 13 face pressure sensor of pressure sensor 13, also sets up in the both sides of steel ball 10 There is the leg 14 that end is in circular arc.

During present invention work, laterally or fixed cylinder 5 can be placed into inner-walls of duct by longitudinal direction, adjustment fixed cylinder 5 Station is allowed to keep vertical or horizontal, positioned at the top of base 2 ball 1 and the bottom of fixed cylinder 5 steel ball 10 respectively with pipe Road inwall contact, graduated scale 4 are driven movable block 6 to be moved along a straight line in fixed cylinder 5 by after the extruding of inner-walls of duct；Work as movement When block 6 is moved in position-limiting drum 8, movable block 6 starts to be compressed spring 9, and movable block 6 is up big and down small truncated cone-shaped Shape, multiple protruding portion 7 is fixed with the outer wall of movable block 6, while offers in position-limiting drum 8 and multiple to match with protuberance 7 The groove of conjunction, i.e. movable block 6 continue to move down under the guiding of groove, effectively prevent in measurement process graduated scale 4 in fixation Sidesways occur in cylinder 5, that is, prevent the internal diameter size of the non-pipeline of data that graduated scale 4 is measured but higher in the big of internal diameter of the pipeline It is small；When the straight line where the axis and pipe diameter of fixed cylinder 5 coincides, the data on graduated scale 4 are read, the data are shifting Motion block 6 does the displacement that linear motion occurs, and by calculating, i.e. the air line distance of the bottom of steel ball 10 and the top of ball 1 subtracts movement The straight-line displacement that block 6 occurs can draw the size of internal diameter of the pipeline.

Wherein, it is the level or right angle setting that further speed up device on inner-walls of duct, the present invention opens in base 2 Provided with movable chamber, the both ends of the be hinged U-shaped support member 12 being arranged in movable chamber can be realized and move down with the movement of ball 1 It is dynamic, then the both sides of steel ball 10 are fixed with the leg 14 that end is circular arc, when device is integrally placed it is horizontal or vertical when, U-shaped The surface of the movable end of support member 12 and the top of ball 1, and the end of steel ball 10 and leg 14 are complete with inner-walls of duct respectively Full connected, and the both ends of U-shaped support member 12 keep balance, and the bottom of the horizontal component of U-shaped support member 12 will not pass with pressure Sensor 13 is in contact；When device, which is integrally placed, is unsatisfactory for horizontal or vertical, the both ends stress of U-shaped support member 12 is uneven Weighing apparatus, the i.e. both ends of the horizontal component of U-shaped support member 12 contact with pressure sensor 13 for a moment, and pressure sensor 13 is by its stress shape Condition is spread out of for the specific placement location of the timely identification device of operating personnel, is facilitated it to adjust in time, is avoided fixed cylinder 5 and bottom Seat 2 shifts and causes the data error of measurement bigger than normal.

Also including jacking post 3 and displacement transducer 11, the both ends of the jacking post 3 are connected with movable block 6, base 2 respectively, And the graduated scale 4 is rotatably arranged on jacking post 3, institute's displacement sensors 11 are fixed on the bottom of movable block 6.In fixed cylinder , it is necessary to carry out certain being adjusted to ensure that to ball 1 and steel ball 10, device is overall straight with pipeline after 5 are placed in inner-walls of duct Footpath keeps overlapping, therefore the reading difficulty of graduated scale 4 increases after adjustment, and the present invention is equipped with top between movable block 6 and base 2 Enter post 3, graduated scale 4 is rotatably arranged on jacking post 3, and graduated scale 4 can be directly rotated in reading to ensure its good observation Visual angle, the quick progress being convenient for measuring；When pipeline locally needs more accurate measurement, the displacement positioned at the bottom of movable block 6 Sensor 11 can accurately measure the distance that moves down of movable block 6, by compared with the reading on graduated scale 4, repeatedly measuring Afterwards, the value minimum by the way that an error is calculated, can meet measurement demand.

Above-described embodiment, the purpose of the present invention, technical scheme and beneficial effect are carried out further Describe in detail, should be understood that the embodiment that the foregoing is only the present invention, be not intended to limit the present invention Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc., all should include Within protection scope of the present invention.

Claims (3)

1. a kind of construction PCCP bore measuring appliances, including fixed cylinder (5) and spacing in fixed cylinder (5) Cylinder (8), it is characterised in that：The lower rotation of the position-limiting drum (8) is provided with steel ball (10), and the steel ball (10) is locally prominent For the bottom of fixed cylinder (5), spring (9) is installed in fixed cylinder (5), in addition to connect with the movable end of the spring (9) The movable block (6) and base (2) of the truncated cone-shaped connect, the movable block (6) is connected by graduated scale (4) with base (2), in movement Multiple protruding portion (7) is provided with the outer wall of block (6), is offered on the inwall of the fixed cylinder (5) multiple with protuberance (7) phase The groove of cooperation, rotated on the upper surface of the base (2) and be provided with ball (1), activity is provided with the base (2) Chamber, the bottom of movable chamber is be hinged to be provided with U-shaped support member (12), and two movable ends of U-shaped support member (12) are through base (2), ball (1) is located between two movable ends of U-shaped support member (12), and two pressure are fixed with the inwall of movable chamber and are passed Sensor (13), the both ends of pressure sensor (13) face pressure sensor (13) horizontal component, in the both sides of steel ball (10) It is additionally provided with the leg (14) that end is in circular arc.

A kind of 2. construction according to claim 1 PCCP bore measuring appliances, it is characterised in that：Also include jacking Post (3), the both ends of the jacking post (3) are connected with movable block (6), base (2) respectively, and the graduated scale (4) is rotated and set On jacking post (3).

A kind of 3. construction according to claim 1 PCCP bore measuring appliances, it is characterised in that：Also include displacement Sensor (11), institute's displacement sensors (11) are fixed on the bottom of movable block (6).