Corrugated pipe compensator inner diameter measuring device

Abstract

The utility model discloses an inner diameter measuring device for a corrugated pipe compensator, which belongs to the technical field of measurement of physical parameters of products, and comprises an axially telescopic measuring rod with scale marks on the surface; the positioning assemblies are symmetrically arranged at the two ends of the measuring rod in the radial direction, and each positioning assembly comprises an elastically telescopic arc-shaped positioning plate and a ball array; the top of the measuring rod is provided with a measuring assembly, and the measuring assembly comprises at least three laser distance measuring sensors which are uniformly distributed in the circumferential direction; the data processing module integrated in the middle of the measuring rod is adopted, the telescopic rod body is matched with a self-adaptive positioning structure, and the multi-angle laser measuring technology is combined, so that the inner diameter measuring requirements of corrugated pipes of different specifications can be rapidly met, and measuring errors caused by installation eccentricity are automatically eliminated; and meanwhile, accurate measurement of the large-size corrugated pipe can be completed by a single person, so that the efficiency of measuring the inner diameter of the corrugated pipe compensator is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the measurement technology field of product physical parameters, more particularly to a corrugated pipe compensator inner diameter measuring device. BACKGROUND

[0002] The corrugated compensator is a kind of compensating element. The effective telescopic deformation of the working main body corrugated pipe is used to absorb the size change of pipeline, conduit, container and the like caused by thermal expansion and cold shrinkage and the like, or compensate the axial, lateral and angular displacement of pipeline, conduit, container and the like. It can also be used for noise reduction and vibration reduction. It is widely used in modern industry.

[0003] And the existing corrugated pipe compensator inner diameter measurement is measured manually by vernier caliper or tape measure, and the following defects exist in use:

[0004] 1. Traditional tools are difficult to operate in the narrow space inside the pipeline;

[0005] 2. The measurement datum plane is difficult to accurately position due to the corrugated structure;

[0006] 3. There are subjective errors in manual reading, and the consistency of repeated measurement is poor;

[0007] 4. The size distribution of the whole cross section cannot be quickly obtained.

[0008] Therefore, the present scheme is proposed to solve the above-mentioned defects in the prior art. INVENTION CONTENTS

[0009] 1. Technical problem to be solved:

[0010] In view of the problems existing in the prior art, the utility model aims at providing a corrugated pipe compensator inner diameter measuring device, which can quickly adapt to the inner diameter measurement requirements of corrugated pipes of different specifications by adopting telescopic rod body cooperating with self-adaptive positioning structure, combining with multi-angle laser measurement technology, and automatically eliminating the measurement error caused by installation eccentricity, and digitalizing the output of key parameters such as cross section true roundness, and a single person can complete the accurate measurement of large-size corrugated pipe, which greatly improves the efficiency of corrugated pipe compensator inner diameter measurement.

[0011] 2. Technical scheme:

[0012] To solve the above problems, the utility model adopts the following technical scheme.

[0013] A corrugated pipe compensator inner diameter measuring device, comprising:

[0014] An axially telescopic measuring rod, the surface of which is provided with scale marks;

[0015] Positioning assemblies symmetrically arranged at the two ends of the measuring rod in the radial direction, the positioning assemblies comprising elastically extendable arc-shaped positioning plates and ball arrays;

[0016] A measuring assembly arranged at the top of the measuring rod, the measuring assembly comprising at least three circumferentially distributed laser ranging sensors;

[0017] A data processing module integrated in the middle of the measuring rod and electrically connected with the laser ranging sensors;

[0018] The end of the measuring rod is provided with a rotatable operating handle.

[0019] Further improvements are that the measuring rod is composed of three lockable sleeves, i.e., sleeve one, sleeve two and sleeve three, the telescopic stroke adjustment range is 200-800mm, a limiting groove one is arranged at the top side end of the sleeve one, a limiting groove two is arranged at the top side end of the sleeve two, a receiving groove is arranged at the bottom side end of the sleeve two and sleeve three, a positioning ball is arranged between the inner walls of the receiving groove, and a spring two is fixedly connected between the positioning ball and the inner wall of the receiving groove.

[0020] Further improvements are that the two ends of the measuring rod are symmetrically provided with receiving barrels, one end of the arc-shaped positioning plate is inserted into the interior of the receiving barrel, and a spring one is arranged between the inner sides of the two.

[0021] Further improvements are that the measuring assembly comprises a support plate fixedly connected with the top end of the measuring rod, three groups of support seats in annular distribution are fixedly connected with the upper end of the support plate, arc-shaped through holes are arranged on the side walls of the support seats, an adapter plate is rotatably connected between the inner walls of the support seats, limiting shafts are fixedly connected with the two sides of the adapter plate, the limiting shafts are respectively located between the inner walls of the arc-shaped through holes, positioning nuts are mounted on the outer ends of the limiting shafts, and the laser ranging sensors are located at the upper end of the adapter plate.

[0022] Further improvements are that the data processing module comprises a wireless transmission unit configured to transmit the measurement data to a mobile terminal in real time.

[0023] Further improvements are that the operating handle comprises a transmission barrel rotatably connected with the end of the measuring rod, a transmission rod is inserted between the inner walls of the transmission barrel, one end of the transmission rod is fixedly connected with the end of the measuring rod, and a hand wheel is fixedly connected with the bottom end of the transmission rod.

[0024] 3. Beneficial effects:

[0025] Compared with the prior art, the technical scheme provided by the utility model has the following beneficial effects:

[0026] The utility model discloses a reasonable design, through adopting telescopic rod body cooperation self -adaptation positioning structure, combines multi -angle laser measuring technique, can realize the internal diameter measurement demand of quick adaptation different specifications bellows, and automatic elimination installation eccentricity brings the measurement error, and digital output cross section true roundness etc. Key parameter, and single person can complete the accurate measurement of large -size bellows simultaneously, greatly improve the efficiency of bellows compensator internal diameter measurement.

[0027] Need to explain, the structure that the utility model does not introduce because does not involve the design key point and improvement direction of the utility model, same or can adopt prior art to be realized here do not make superfluous repetition. BRIEF DESCRIPTION OF DRAWINGS

[0028] Fig. 1 It is the whole structure schematic diagram of the utility model;

[0029] Fig. 2 It is the explosion structure schematic diagram of the utility model measuring device;

[0030] Fig. 3 It is the structure schematic diagram of the utility model measuring assembly.

[0031] Mark explanation in drawing:

[0032] 1, measuring rod;11, sleeve one;111, limit slot one;12, sleeve two;121, limit slot two;13, sleeve three;14, storage groove;141, positioning ball;142, spring two;

[0033] 2, positioning assembly;21, storage cylinder;22, arc positioning plate;23, ball array;

[0034] 3, measuring assembly;31, support plate;32, support seat;33, arc-shaped through hole;34, link plate;35, limit shaft;36, positioning nut;37, laser ranging sensor;38, data processing module;

[0035] 4, operating handle;41, transmission cylinder;42, transmission rod;43, hand wheel. DETAILED DESCRIPTION

[0036] In order to facilitate understanding the utility model, below will refer to relevant drawing and the utility model is carried out more comprehensive description, and the utility model has been shown in several embodiments in the drawing, however, the utility model can realize in many different forms, and is not limited to the embodiment described in this paper, on the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0037] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0038] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0039] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing", "provided with", "provided in" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0040] Please refer to Figs. 1-3 A corrugated pipe compensator inner diameter measuring device, comprising:

[0041] The surface of the axially telescopic measuring rod 1 is provided with scale marks;

[0042] The symmetrical positioning assembly 2 is arranged radially at both ends of the measuring rod 1, and the positioning assembly 2 comprises an elastically telescopic arc-shaped positioning plate 22 and a ball array 23;

[0043] The measuring assembly 3 arranged at the top of the measuring rod 1 comprises at least three circumferentially distributed laser ranging sensors 37;

[0044] The data processing module 38 integrated in the middle of the measuring rod 1 is electrically connected with the laser ranging sensor 37;

[0045] The end of the measuring rod 1 is provided with a rotatable operating handle 4.

[0046] The scheme in the process of use, by adopting telescopic rod body cooperation adaptive positioning structure, combined with multi-angle laser measurement technology, can realize the fast adaptation of different specifications of the inner diameter of the corrugated pipe measuring demand, and automatically eliminate the measurement error caused by installation eccentricity, and digital output cross section true roundness and other key parameters, at the same time, a person can complete the accurate measurement of large size corrugated pipe, greatly improve the efficiency of the corrugated pipe compensator inner diameter measurement.

[0047] Please refer to Figs. 1-2 , the measuring rod 1 is composed of three lockable sleeves, the sleeve one 11, the sleeve two 12 and the sleeve three 13, the telescopic stroke adjustment range is 200-800mm, the top side end of the sleeve one 11 is provided with a limiting groove one 111, the top side end of the sleeve two 12 is provided with a limiting groove two 121, the bottom side end of the sleeve two 12 and the sleeve three 13 are provided with a receiving groove 14, the inner wall of the receiving groove 14 is provided with a positioning ball 141, the positioning ball 141 and the inner wall of the receiving groove 14 are fixedly connected with a spring two 142.

[0048] In the process of use, the positioning ball 141 on one side of the bottom of the sleeve three 13 slides between the inner walls of the limiting groove two 121, the positioning ball 141 on one side of the bottom of the sleeve two 12 slides between the inner walls of the limiting groove one 111, then the two are synchronized under the reset characteristic of the spring two 142, the positioning ball 141 is limited in the sleeve one 11 and the limiting groove two 121, so as to realize the positioning of the three positions of the sleeve one 11, the sleeve two 12 and the sleeve three 13.

[0049] Please refer to Figs. 1-2 , the two ends of the measuring rod 1 are symmetrically provided with a receiving cylinder 21, one end of the arc-shaped positioning plate 22 is inserted into the inside of the receiving cylinder 21, and the inner sides of the two are provided with a spring one.

[0050] In the process of use, after the device is inserted into the corrugated pipe compensator, the length of the measuring rod 1 is adjusted by the personnel, and the arc-shaped positioning plate 22 and the ball array 23 are contacted with the pipe wall under the reset of the spring one, so as to support and limit the overall position, which is beneficial to the subsequent measurement operation.

[0051] Please refer to Figs. 1-3 , the measuring assembly 3 includes a support plate 31 fixedly connected with the top end of the measuring rod 1, three groups of support seats 32 are annularly distributed and fixedly connected with the upper end of the support plate 31, arc-shaped through holes 33 are formed in the side wall of the support seat 32, a link plate 34 is rotatably connected between the inner walls of the support seat 32, limiting shafts 35 are fixedly connected with the two sides of the link plate 34, the limiting shafts 35 are located between the inner walls of the arc-shaped through holes 33, positioning nuts 36 are mounted on the outer ends of the limiting shafts 35, and a laser ranging sensor 37 is located on the upper end of the link plate 34.

[0052] More specifically: the data processing module 38 contains a wireless transmission unit, configured for real-time transmission of measurement data to a mobile terminal.

[0053] In use, personnel rotate the operating handle 4 to drive the measurement assembly 3 to rotate, so that the three groups of laser sensors 37 automatically collect multiple sets of inner diameter data. During measurement, personnel can pre-release the positioning of the limiting screw 36 on the limiting shaft 35, so that the adapter plate 34 is adjusted in the inclined angle between the inner walls of the arc-shaped through hole 33 through one side of the transmission shaft, and the adjustment angle is 0°-30°. Finally, the inclined angle of the adapter plate 34 is positioned by screwing the positioning screw 36, and the measurement blind area of the corrugated valley bottom is eliminated under the design of the inclined angle.

[0054] Please refer to Figs. 1-2 , the operating handle 4 includes a transmission cylinder 41 rotatably connected to the end of the measuring rod 1, a transmission rod 42 is inserted between the inner walls of the transmission cylinder 41, one end of the transmission rod 42 is fixedly connected with the end of the measuring rod 1, and the bottom end of the transmission rod 42 is fixedly connected with a hand wheel 43.

[0055] In use, personnel can hold the transmission cylinder 41 and then rotate the hand wheel 43, so that the measurement assembly 3 connected by the transmission rod 42 rotates synchronously, thereby collecting data.

[0056] Example 1:

[0057] The measuring rod 1 adopts a 304 stainless steel three-section sleeve structure, and the total length can be adjusted in the range of 250-750mm. The arc-shaped positioning plate 22 of the positioning assembly 2 is made of phosphor bronze, and the outer surface is embedded with a 4×5 array of tungsten carbide balls. The measurement assembly 3 includes three laser sensors 37 of HY-M121 type, which are distributed at 120° in the circumferential direction, and the inclined angle can be freely adjusted between 0°-30°. The data processing module 38 integrates Bluetooth 5.0 transmission function, and automatically calculates the average value of three data during measurement.

[0058] Example 2:

[0059] In operation, the device is inserted into the corrugated pipe compensator, the length of the measuring rod 1 is adjusted so that the ball array 23 of the positioning assembly 2 contacts the pipe wall. Rotate the operating handle 4 to drive the measurement assembly 3 to rotate, and the laser sensor 37 automatically collects multiple sets of data, and the measurement blind area of the corrugated valley bottom is eliminated by the design of the inclined angle. The data processing module 38 displays the maximum / minimum inner diameter value in real time, and generates a three-dimensional cross-sectional graph through a mobile phone APP.

[0060] The above-described embodiments only express certain implementation manners of the present application, and the description is relatively specific and detailed, but should not be understood as a limitation on the scope of the present application; it should be pointed out that, for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application; therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. A bellows compensator inner diameter measuring device characterized by, Include: The axial telescopic measuring rod (1) is provided with scale marks on the surface; The positioning assembly (2) is symmetrically arranged at the radial of the two ends of the measuring rod (1), the positioning assembly (2) comprises an elastic telescopic arc-shaped positioning plate (22) and a ball array (23); The measuring assembly (3) is arranged at the top of the measuring rod (1), the measuring assembly (3) comprises at least three circumferentially distributed laser ranging sensors (37); The data processing module (38) is integrated in the middle of the measuring rod (1) and is electrically connected with the laser ranging sensor (37); The end of the measuring rod (1) is provided with a rotatable operating handle (4).

2. A device for measuring the internal diameter of a bellows compensator according to claim 1, characterized in that: The measuring rod (1) is composed of three lockable sleeves (11), (12) and (13), the telescopic stroke adjustment range is 200-800mm, the top side end of the sleeve (11) is provided with a limiting groove (111), the top side end of the sleeve (12) is provided with a limiting groove (121), the bottom side end of the sleeve (12) and the sleeve (13) are provided with a receiving groove (14), the inner wall of the receiving groove (14) is provided with a positioning ball (141), the positioning ball (141) and the inner wall of the receiving groove (14) are fixedly connected with a spring (142).

3. A device for measuring the internal diameter of a bellows compensator according to claim 1, characterized in that: The two ends of the measuring rod (1) are symmetrically provided with a receiving cylinder (21), one end of the arc-shaped positioning plate (22) is inserted into the inside of the receiving cylinder (21), and the inside of the two is provided with a spring (1).

4. A device for measuring the internal diameter of a bellows compensator according to claim 1, characterized in that: The measuring assembly (3) comprises a support plate (31) fixedly connected to the top end of the measuring rod (1), three groups of support seats (32) are annularly distributed and fixedly connected to the upper end of the support plate (31), arc-shaped through holes (33) are formed in the side wall of the support seat (32), an adapter plate (34) is rotatably connected between the inner walls of the support seat (32), limit shafts (35) are fixedly connected to the two sides of the adapter plate (34), the limit shafts (35) are respectively located between the inner walls of the arc-shaped through holes (33), positioning nuts (36) are mounted on the outer ends of the limit shafts (35), and the laser ranging sensors (37) are located at the upper end of the adapter plate (34).

5. A device for measuring the internal diameter of a bellows compensator according to claim 1, characterized in that: The data processing module (38) comprises a wireless transmission unit configured to transmit measurement data to a mobile terminal in real time.

6. A device for measuring the internal diameter of a bellows compensator according to claim 1, characterized in that: The operating handle (4) comprises a transmission cylinder (41) rotatably connected to the end of the measuring rod (1), a transmission rod (42) is inserted between the inner walls of the transmission cylinder (41), one end of the transmission rod (42) is fixedly connected with the end of the measuring rod (1), and a hand wheel (43) is fixedly connected to the bottom end of the transmission rod (42).

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