Device for measuring inner diameter and outer diameter of PE solid wall pipe

Abstract

The invention relates to the technical field of PE solid wall pipe inner and outer diameter measurement, in particular to a PE solid wall pipe inner and outer diameter measurement device which comprises an inner diameter measurement unit and an outer diameter measurement unit. Inclination angles of a first distance sensor and a second distance sensor are changed through a rotating assembly, so that diversity of measurement results is ensured, singleness of detection data is avoided, and measurement accuracy is improved. The inner diameter and the outer diameter of the PE solid-wall pipe can be measured at multiple circumferential points and axial points at the same time, the whole detection process can be completed by using two traction assemblies according to the length of the PE solid-wall pipe to be detected, the operability of the device is improved, the length of the measuring device can be adjusted and changed, and therefore the device is suitable for detecting the PE solid-wall pipes with multiple lengths, and the detection efficiency is improved. The traction assembly drives the sliding assembly to move, so that the first distance sensor is driven to horizontally move on the central axis of the PE solid-wall pipe, detection points are increased, multiple sets of measurement data are obtained, comparison and calculation are carried out, and therefore a measurement result with high reliability is obtained.

Description

Technical Field

[0001] The invention relates to the technical field of measuring inner and outer diameters of PE solid wall pipes, in particular to an inner and outer diameter measuring device for PE solid wall pipes. Background Art

[0002] PE solid wall pipe is a circular pipe formed by melting PE particles and then extruding them through an extruder. PE solid wall pipe has many advantages. First of all, it is lightweight. Compared with traditional metal pipes, PE solid wall pipe is light in weight, easy to carry and install, and is especially suitable for construction sites and temporary pipelines. Secondly, PE solid wall pipe has the characteristics of corrosion resistance. PE material has high corrosion resistance and can withstand the erosion of acid, alkali and other chemical substances. Therefore, it can be used in chemical, petroleum, medical and other fields. In addition, PE solid wall pipe also has good high temperature resistance and can withstand pressure and thermal cycles in high temperature environment. In addition, PE solid wall pipe also has good sealing performance, which can effectively prevent liquid or gas leakage and ensure the safety and reliability of the pipeline. Therefore, it is widely used.

[0003] The manufacturing process of PE solid wall pipe mainly includes the steps of extrusion molding, heating, cooling, cutting and testing. Among them, in order to ensure that the quality and size of the pipe meet the requirements, the inner and outer diameters of the cut PE solid wall pipe need to be measured. Due to the large size of PE solid wall pipe, it is not convenient to measure with a ruler. The traditional inner diameter detection method is to move the distance sensor along the central axis of the PE solid wall pipe toward the center side for detection. However, in this measurement method, the distance sensor measures at a fixed angle, and it is difficult for the distance sensor to penetrate into the center side of the PE solid wall pipe. Therefore, it is only measured near the mouth of the PE solid wall pipe, resulting in the singleness of the data. The outer diameter detection method is to move the distance sensor along a fixed plane and measure the outer diameter of the outside of the PE solid wall pipe along the horizontal plane, which still results in the singleness of the data, resulting in low credibility of the detection results. Summary of the invention

[0004] In view of the above problems, the embodiment of the present application provides a PE solid wall pipe inner and outer diameter measuring device to solve the technical problem of the singleness of the detection results in the related art. In order to achieve the above purpose, the embodiment of the present application provides the following technical solutions.

[0005] A PE solid wall pipe inner and outer diameter measuring device according to an embodiment of the present application comprises an inner diameter measuring unit and an outer diameter measuring unit, wherein the outer diameter measuring unit is arranged on the inner diameter measuring unit for measuring the outer diameter of the PE solid wall pipe; the inner diameter measuring unit comprises a three-jaw chuck 1, a sliding component is arranged inside the three-jaw chuck 1, a distance sensor 1 is fixedly installed symmetrically front and back on the sliding component, a three-jaw chuck 2 is arranged on the left side of the sliding component, a rotating component is arranged on the sliding component, an outer diameter measuring unit is arranged at the rear end of the rotating component, and a traction component is arranged between the right end of the outer diameter measuring unit and the sliding component; the outer diameter measuring unit comprises a rectangular rod 1, a rectangular rod 1 and a rectangular rod 2 are fixedly installed on the left and right sides of the rear end of the rotating component, respectively, a guide rod 2 with a square cross section that can be assembled is fixedly connected between the rectangular rod 1 and the rectangular rod 2, a movable ring plate with a square cross section is slidably connected to the guide rod 2, a distance sensor 2 is fixedly installed at the front end of the movable ring plate, and a fixed plate is fixedly installed at the right end of the rectangular rod 2.

[0006] According to an embodiment of the present invention, the sliding assembly includes a support rod, an inner ring wall of a three-jaw chuck is symmetrically fixed with the support rod, an assembleable guide rod is commonly fixedly installed at the end of the support rod, the outer end of the guide rod is slidably connected to a sliding ring plate left and right, two distance sensors are symmetrically fixed to the outer wall of the sliding ring plate front and back, the outer ring wall of the sliding ring plate is symmetrically fixed to the distance sensor one front and back, a positioning ring plate is sleeved on the left outer end of the guide rod, and the outer ring wall of the positioning ring plate is rotatably connected to the three-jaw chuck two.

[0007] According to an embodiment of the present invention, the rotating assembly includes a rotating ring plate 1, a leftmost guide rod 1 having a leftmost outer end rotatably connected to the rotating ring plate 1, a control rod symmetrically fixedly installed on the left end of the sliding ring plate for sliding left and right and penetrating the positioning ring plate and the rotating ring plate 1, the length of the control rod can be adjusted by assembly, a rectangular rod 1 is fixedly installed on the rear end of the rotating ring plate 1, the rightmost guide rod 1 is rotatably connected to the rotating ring plate 2 at the right end, and the rear end of the rotating ring plate 2 is fixedly connected to the rectangular rod 2.

[0008] According to an embodiment of the present invention, the traction assembly includes a rotating rod, which is rotatably connected to a fixed plate, a round anti-slip block is fixedly installed at the front end of the rotating rod, a traction wire rope is wound and fixed on the rotating rod, and the end of the traction wire rope is fixedly connected to the right end of the sliding ring plate.

[0009] According to an embodiment of the present invention, the traction assembly includes a rotating rod, which is rotatably connected to the fixed plate, an anti-slip round block is fixedly installed at the front end of the rotating rod, an increasing diameter ring plate is fixedly connected to the outer end of the rear side of the rotating rod, the circumference of the outer ring wall of the increasing diameter ring plate is equal to twice the circumference of the bottom surface of the rotating rod, a traction wire rope 1 spirally wound thereon is fixedly installed on the rotating rod, one end of the traction wire rope 1 is fixedly connected to the right end of the sliding ring plate, a traction wire rope 2 spirally wound thereon is fixedly installed on the increasing diameter ring plate, and the winding direction of the traction wire rope 1 is opposite to that of the traction wire rope 2, a rectangular plate is fixedly installed at the right end of the three-claw chuck 2, and a pulley column is rotatably connected to the front end of the rectangular plate, and the end of the traction wire rope 2 is fixedly connected to the left end of the sliding ring plate after being wound on the pulley column.

[0010] According to an embodiment of the present invention, the guide rod 1 includes a fixed round rod, the ends of the support rods are commonly fixedly installed with the fixed round rod, the left end of the fixed round rod is provided with a round rod assembly, the round rod assembly is composed of a plurality of round rods, the right end of the round rod is fixedly installed with a threaded rod 1, and the left ends of the round rod and the fixed round rod are both provided with a threaded groove 1 that matches with the adjacent threaded rod 1.

[0011] According to an embodiment of the present invention, the guide rod 2 includes a fixed square column, and the opposite ends of the rectangular rod 1 and the rectangular rod 2 are fixedly installed with fixed square columns, a square rod assembly is arranged between the fixed square columns, and the square rod assembly is composed of a plurality of square columns, and the square column and the right end of the fixed square column on the left are fixedly installed with a threaded rod 2, and the left end of the square column and the left end of the fixed square column on the right are provided with a threaded groove 2 that matches the threaded rod 2.

[0012] According to an embodiment of the present invention, the control rod includes a connecting rod, a connecting rod is fixedly installed symmetrically front and back on the left end of the sliding ring plate, the left end of the connecting rod slides left and right and passes through the positioning ring plate and the rotating ring plate one, an assembly rod is arranged on the left side of the connecting rod, the assembly rod is composed of a plurality of circular rod members, the left ends of the circular rod members and the left end of the connecting rod are both provided with thread groove three, and a threaded rod three matching with thread groove three is fixedly installed on the right end of the circular rod.

[0013] It can be seen from the above technical solutions that the present invention has the following advantages:

[0014] 1. In the present invention, the measuring angles of distance sensor 1 and distance sensor 2 are changed by rotating the assembly, thereby ensuring the diversity of the measurement results and avoiding the singleness of the detection data. The inner diameter and outer diameter of the PE solid wall pipe can be measured at multiple circumferential points and axial points at the same time. In addition, according to the length of the PE solid wall pipe to be detected, two traction assemblies can be used to complete the entire detection process, thereby improving the operability of the device.

[0015] 2. In the present invention, the rectangular rod 1 is manually moved to drive the rotating ring plate 1 and the control rod to rotate, thereby driving the positioning ring plate and the sliding ring plate to rotate, changing the measuring angles of the distance sensor 1 and the distance sensor 2, and avoiding the singleness of the detection data.

[0016] 3. In the present invention, when the length of the PE solid wall pipe is small, the first traction assembly is used, which can reduce the detection cost while quickly resetting. When the length of the PE solid wall pipe is small, the second traction assembly is used, which can reduce the difficulty of resetting while quickly resetting.

[0017] In addition to the technical problems solved by the embodiments of the present application described above, the technical features that constitute the technical scheme, and the beneficial effects brought about by the technical features of these technical schemes, other technical problems that can be solved by a device for measuring inner and outer diameters of PE solid wall pipes provided by the embodiments of the present application, other technical features included in the technical scheme, and the beneficial effects brought about by these technical features will be further described in detail in the specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0019] Figure 1 A schematic diagram of a main-view stereoscopic structure provided according to an embodiment of the present invention is shown.

[0020] Figure 2 The diagram shows a schematic diagram of the main stereoscopic structure of the present invention when using a rotating rod, an anti-slip round block and a traction wire rope.

[0021] Figure 3 The main perspective view of the stereoscopic structure of the present invention using a rotating rod, an anti-slip round block, a diameter-increasing ring plate, a first traction steel wire rope, a second traction steel wire rope, a rectangular plate and a pulley column is shown.

[0022] Figure 4 A schematic diagram of the main cross-sectional plan structure of the guide rod 1 is shown.

[0023] Figure 5 A schematic diagram of the top cross-sectional plan structure of the guide rod 2 is shown.

[0024] Figure 6 A schematic diagram of the cross-sectional plan structure of the control rod is shown.

[0025] Figure 7 A right-side perspective structural diagram of the support rod is shown.

[0026] The above drawings include the following reference numerals:

[0027] 1. Inner diameter measuring unit; 11. Three-jaw chuck 1; 12. Sliding assembly; 121. Support rod; 122. Guide rod 1; 123. Sliding ring plate; 124. Positioning ring plate; 13. Distance sensor 1; 14. Three-jaw chuck 2; 15. Rotating assembly; 151. Rotating ring plate 1; 152. Control rod; 153. Rotating ring plate 2; 16. Traction assembly; 161. Rotating rod; 162. Anti-slip round block; 1621. Traction wire rope; 163. Diameter increasing ring plate; 164. Traction wire rope 1; 165. Traction wire rope 2; 166. Rectangular plate; 167. Pulley column; 2. Outer diameter measuring unit; 21. Rectangular rod 1; 22. Rectangular rod 2; 23. Guide rod 2; 24. Moving ring plate; 25. Distance sensor 2; 26. Fixed plate. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0029] See also Figure 1 , Figure 2 and Figure 3 A PE solid wall pipe inner and outer diameter measuring device, comprising an inner diameter measuring unit 1 and an outer diameter measuring unit 2, wherein the outer diameter measuring unit 2 is arranged on the inner diameter measuring unit 1 for measuring the outer diameter of the PE solid wall pipe; the inner diameter measuring unit 1 comprises a three-jaw chuck 11, a sliding component 12 is arranged in the three-jaw chuck 11, a distance sensor 13 is fixedly installed symmetrically front and back on the sliding component 12, a three-jaw chuck 2 14 is arranged on the left side of the sliding component 12, a rotating component 15 is arranged on the sliding component 12, and the outer diameter measuring unit 2 is arranged at the rear end of the rotating component 15, and the outer diameter measuring unit 1 A traction assembly 16 is arranged between the right end of the rotating assembly 15 and the sliding assembly 12; the outer diameter measuring unit 2 comprises a rectangular rod 1 21 and a rectangular rod 22; the rectangular rod 1 21 and the rectangular rod 22 are respectively fixedly installed on the left and right sides of the rear end of the rotating assembly 15; a guide rod 23 with a square cross section that can be assembled is fixedly connected between the rectangular rod 1 21 and the rectangular rod 22; a movable ring plate 24 with a square cross section is slidably connected to the guide rod 23; a distance sensor 25 is fixedly installed at the front end of the movable ring plate 24; and a fixed plate 26 is fixedly installed at the right end of the rectangular rod 22.

[0030] First, the PE solid wall tube is supported and positioned to prevent it from rolling during the measurement process. Then, according to the length of the PE solid wall tube, the length of the sliding component 12 is changed by assembly, and the three-jaw chuck 2 14 is fixedly clamped on the left outer tube wall of the PE solid wall tube. Then, the sliding component 12 on the three-jaw chuck 1 1 passes through the three-jaw chuck 2 14, and the three-jaw chuck 1 11 is fixedly clamped on the right outer tube wall of the PE solid wall tube. Then, the length of the rotating component 15 and the guide rod 2 23 are changed by assembly so that the length of the rotating component 15 and the length of the guide rod 2 23 are adapted to the length of the PE solid wall tube. At this time, the traction component 16 is used to drive the sliding component 12 to move a distance to the right, which is recorded as distance one. The distance between it and the inner wall of the PE solid wall tube is measured by the distance sensor 13. After recording data one, the data one is added. The distance between the upper distance sensor 13 and the central axis of the sliding component 12 is used to obtain the inner wall radius data 1 of the PE solid wall pipe at that location. At this time, the sliding component 12 is driven by the traction component 16 to continue to move a distance to the right, which is recorded as distance 2. This is convenient for the subsequent situation where the data obtained by measuring a certain position is significantly different from other data. Then, the position is measured again to obtain the data 1 at that location, and then the operation is repeated to obtain multiple groups of data 1. The data 1 are compared with each other. If the error of the obtained data 1 is within the allowable range and the difference is small, the data are merged and the average is calculated. If the error of the obtained data 1 exceeds the allowable range, the data 1 that exceeds the allowable error is measured again until the data 1 is within the allowable error range. The average is calculated after merging. If the error still exceeds the allowable error after multiple measurements, the inner wall of the PE solid wall pipe is considered to be uneven.

[0031] While the traction component 16 drives the sliding component 12 to move to the right, the rectangular rod 1 21 and the rectangular rod 2 22 are manually rotated to change the inclination angle of the distance sensor 2 25 and the inclination angle of the distance sensor 1 13, so that the inner wall radius of the PE solid wall pipe obtained by each set of data 1 is located in a different plane to avoid the singleness of the measurement. At the same time, the distance sensor 2 25 on the moving ring plate 24 is manually driven to move a distance to the right and recorded as distance 1, so that when the data obtained by measuring a certain position is greatly different from other data in the future, it is convenient to measure again at this place and calculate the PE at this place. The second radius data of the solid wall pipe outer wall is manually driven to move the distance sensor 25 on the moving ring plate 24 to the right for a distance, which is recorded as distance 2 to obtain the second data at that location, and then the operation is repeated to obtain multiple sets of data 2, which are compared with each other. If the error of the obtained data 2 is within the allowable range and the difference is small, the data 2 are merged and the average is calculated. If the error of the obtained data 2 exceeds the allowable range, the data 2 that exceeds the error is re-measured until the data 2 is within the allowable error range, and the average is calculated after merging. If multiple measurements still exceed the error, it is considered that the outer wall of the PE solid wall pipe is uneven.

[0032] See also Figure 2 , Figure 3 and Figure 7 The sliding assembly 12 includes a support rod 121, and the support rod 121 is fixedly installed symmetrically on the inner ring wall of the three-jaw chuck 11. The ends of the support rods 121 are fixedly installed with an assembleable guide rod 122. The outer end of the guide rod 122 is slidably connected to a sliding ring plate 123. Two distance sensors 13 are symmetrically fixed to the outer wall of the sliding ring plate 123. A positioning ring plate 124 is sleeved on the left outer end of the guide rod 122. The outer ring wall of the positioning ring plate 124 is rotatably connected to the three-jaw chuck 14. The outer ring wall of the PE solid wall tube is clamped and fixed by the three-jaw chuck 11 and the three-jaw chuck 14 to ensure that the guide rod 122 is aligned with the center of the PE solid wall tube.

[0033] Continue reading Figure 2 and Figure 3 The rotating assembly 15 includes a rotating ring plate 151, a rotating ring plate 151 is rotatably connected to the left outer end of the leftmost guide rod 122, and a control rod 152 is fixedly installed on the left end of the sliding ring plate 123 to slide left and right and penetrate the positioning ring plate 124 and the rotating ring plate 151. The length of the control rod 152 can be adjusted by assembly, and a rectangular rod 21 is fixedly installed on the rear end of the rotating ring plate 151, and a rotating ring plate 2 153 is rotatably connected to the right end of the rightmost guide rod 122, and the rear end of the rotating ring plate 2 153 is fixedly connected to the rectangular rod 22; the rectangular rod 21 is manually toggled to drive the rotating ring plate 151 and the control rod 152 to rotate, thereby driving the positioning ring plate 124 and the sliding ring plate 123 to rotate, and changing the inclination angle of the distance sensor 13.

[0034] The traction assembly 16 is a assembly for unidirectional traction of the sliding ring plate 123, see Figure 2 The traction assembly 16 includes a rotating rod 161, which is rotatably connected to the fixed plate 26, and an anti-slip round block 162 is fixedly installed at the front end of the rotating rod 161. A traction wire rope 1621 is wound and fixed on the rotating rod 161, and the end of the traction wire rope 1621 is fixedly connected to the right end of the sliding ring plate 123; the rotating rod 161 is driven to rotate by an external motor, so that the traction wire rope 1621 is wound and the horizontal displacement of the sliding ring plate 123 is changed. When the measurement is completed, when another PE solid wall pipe needs to be measured, the sliding ring plate 123 is manually moved to the left to a position close to the three-jaw chuck 14.

[0035] In addition, the traction assembly 16 can also be a assembly for bidirectional traction of the sliding ring plate 123, see Figure 3The traction assembly 16 includes a rotating rod 161, which is rotatably connected to the fixed plate 26, and a round anti-slip block 162 is fixedly installed at the front end of the rotating rod 161. An increasing diameter ring plate 163 is fixedly connected to the outer end of the rear side of the rotating rod 161. The circumference of the outer ring wall of the increasing diameter ring plate 163 is equal to twice the circumference of the arc surface of the rotating rod 161. A traction wire rope 164 spirally wound thereon is fixedly installed on the rotating rod 161. The end of the traction wire rope 164 is fixedly connected to the right end of the sliding ring plate 123. A traction wire rope 2 165 spirally wound thereon is fixedly installed on the increasing diameter ring plate 163. The winding directions of the traction wire rope 164 and the traction wire rope 2 165 are opposite. A rectangular plate 166 is fixedly installed on the right end of the three-claw chuck 14. The rectangular plate 1 The front end of 66 is rotatably connected to a pulley column 167, and the end of the traction wire rope 165 is wound around the pulley column 167 and fixedly connected to the left end of the sliding ring plate 123; the external motor drives the rotating rod 161 to rotate forward, thereby winding the traction wire rope 164. At this time, the traction wire rope 165 is relaxed, so that the sliding ring plate 123 moves to the right. When the measurement is completed and another PE solid wall pipe needs to be measured, the motor drives the rotating rod 161 to rotate in the opposite direction, thereby driving the traction wire rope 165 to be wound under the guidance of the pulley column 167, thereby driving the traction wire rope 164 to be relaxed, and the sliding ring plate 123 moves to the left for reset. It should be noted that the moving distance of the traction wire rope 165 is twice that of the traction wire rope 164.

[0036] See also Figure 4 The guide rod 122 includes a fixed round rod, and the ends of the support rod 121 are fixedly installed with a fixed round rod. The left end of the fixed round rod is provided with a round rod assembly, and the round rod assembly is composed of a plurality of round rods. A threaded rod 1 is fixedly installed at the right end of the round rod, and the left ends of the round rod and the fixed round rod are both provided with a threaded groove 1 that matches with the adjacent threaded rod 1.

[0037] See also Figure 5 The guide rod 23 includes a fixed square column. The opposite ends of the rectangular rod 1 21 and the rectangular rod 22 are fixedly installed with fixed square columns. A square rod assembly is arranged between the fixed square columns. The square rod assembly is composed of a plurality of square columns. The right end of the square column and the right end of the fixed square column on the left are fixedly installed with a threaded rod 2. The left end of the square column and the left end of the fixed square column on the right are provided with a threaded groove 2 that matches the threaded rod 2.

[0038] See also Figure 2 and Figure 6The control rod 152 includes a connecting rod, and the left end of the sliding ring plate 123 is fixedly installed with the connecting rod symmetrically in front and back. The left end of the connecting rod slides left and right and passes through the positioning ring plate 124 and the rotating ring plate 151. An assembly rod is arranged on the left side of the connecting rod. The assembly rod is composed of a plurality of circular rods. The left ends of the circular rods and the left end of the connecting rod are both provided with thread grooves three. The right end of the circular rod is fixedly installed with threaded rod three matching with thread groove three.

[0039] Working principle of the present invention: Step 1: First, support and position the PE solid wall tube. According to the length of the PE solid wall tube, change the length of the sliding component 12 by assembly, fix and clamp the left outer tube wall of the PE solid wall tube with the three-jaw chuck 14, and then pass the sliding component 12 on the three-jaw chuck 1 11 through the three-jaw chuck 14, and fix and clamp the right outer tube wall of the PE solid wall tube with the three-jaw chuck 1 11. Then, change the length of the rotating component 15 and the guide rod 2 23 by assembly, so that the length of the rotating component 15 and the length of the guide rod 2 23 adapt to the length of the PE solid wall tube.

[0040] Step 2: Use the traction component 16 to drive the sliding component 12 to move a distance to the right, which is recorded as distance one. Use the distance sensor 13 to measure the distance between it and the inner wall of the PE solid wall tube. After recording data one, add the data one to the distance between the distance sensor 13 and the center axis of the sliding component 12 to obtain data one of the radius of the inner wall of the PE solid wall tube at that location. At this time, use the traction component 16 to drive the sliding component 12 to continue to move a distance to the right, which is recorded as distance two, to obtain data one at that location. Then repeat the operation to obtain multiple sets of data one, and compare the data one to obtain the inner diameter of the PE solid wall tube.

[0041] Step 3: While the traction component 16 drives the sliding component 12 to move to the right, the rectangular rod 1 21 and the rectangular rod 2 22 are manually rotated to change the inclination angle of the distance sensor 2 25, and the inclination angle of the distance sensor 1 13 is changed at the same time, so that the inner wall radius of the PE solid wall pipe obtained by each set of data 1 is located in a different plane, and at the same time, the distance sensor 2 25 on the mobile ring plate 24 is manually driven to move a distance to the right, which is recorded as distance 1, and measured again at this location, and the data 2 of the outer wall radius of the PE solid wall pipe at this location is obtained by calculation, and the distance sensor 2 25 on the mobile ring plate 24 is manually driven to continue to move a distance to the right, which is recorded as distance 2, and the data 2 at this location is obtained, and then the operation is repeated to obtain multiple sets of data 2, and the data 2 are compared to obtain the outer diameter of the PE solid wall pipe.

[0042] In the description of the present invention, it is necessary to understand that the terms "center", "middle", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "end", "axial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0043] In addition, the terms "first", "second", "number one", "number two", "one", "two" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. In the description of the present invention, "multiple" means at least two, such as two, three, etc., unless otherwise clearly and specifically limited.

[0044] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, a sliding connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for measuring inner and outer diameters of PE solid wall pipes, characterized in that , comprising an inner diameter measuring unit (1) and an outer diameter measuring unit (2), wherein the outer diameter measuring unit (2) is arranged on the inner diameter measuring unit (1) and is used to measure the outer diameter of the PE solid wall pipe; The inner diameter measuring unit (1) comprises a three-jaw chuck (11), a sliding assembly (12) is arranged inside the three-jaw chuck (11), a distance sensor (13) is fixedly installed symmetrically in front and back of the sliding assembly (12), a three-jaw chuck (14) is arranged on the left side of the sliding assembly (12), a rotating assembly (15) is arranged on the sliding assembly (12), an outer diameter measuring unit (2) is arranged at the rear end of the rotating assembly (15), and a traction assembly (16) is arranged between the right end of the outer diameter measuring unit (2) and the sliding assembly (12); The outer diameter measuring unit (2) comprises a rectangular rod (21), a rectangular rod (21) and a rectangular rod (22) are respectively fixedly mounted on the left and right sides of the rear end of the rotating assembly (15), a guide rod (23) with a square cross section that can be assembled is fixedly connected between the rectangular rod (21) and the rectangular rod (22), a movable ring plate (24) with a square cross section is slidably connected to the guide rod (23) left and right, a distance sensor (25) is fixedly mounted on the front end of the movable ring plate (24), and a fixed plate (26) is fixedly mounted on the right end of the rectangular rod (22).

2. A PE solid wall pipe inner and outer diameter measuring device according to claim 1, characterized in that: The sliding assembly (12) comprises a support rod (121), the support rod (121) is fixedly mounted on the inner ring wall of the three-jaw chuck (11) in a front-to-back symmetrical manner, an assembleable guide rod (122) is fixedly mounted on the end of the support rod (121), the outer end of the guide rod (122) is slidably connected to a sliding ring plate (123) in the left-right direction, two distance sensors (13) are symmetrically fixed to the outer wall of the sliding ring plate (123) in the front-to-back direction, a positioning ring plate (124) is sleeved on the left outer end of the guide rod (122), and the outer ring wall of the positioning ring plate (124) is rotatably connected to the three-jaw chuck (14).

3. A PE solid wall pipe inner and outer diameter measuring device according to claim 1, characterized in that: The rotating assembly (15) comprises a rotating ring plate (151), the left outer end of the leftmost guide rod (122) is rotatably connected to the rotating ring plate (151), the left end of the sliding ring plate (123) is symmetrically fixed with a control rod (152) that slides left and right and penetrates the positioning ring plate (124) and the rotating ring plate (151), the length of the control rod (152) can be adjusted by assembly, the rear end of the rotating ring plate (151) is fixedly installed with a rectangular rod (21), the right end of the rightmost guide rod (122) is rotatably connected to the rotating ring plate (153), and the rear end of the rotating ring plate (153) is fixedly connected to the rectangular rod (22).

4. A PE solid wall pipe inner and outer diameter measuring device according to claim 1, characterized in that: The traction assembly (16) comprises a rotating rod (161), the rotating rod (161) is rotatably connected to the fixed plate (26), an anti-dropping round block (162) is fixedly mounted on the front end of the rotating rod (161), a traction wire rope (163) is rolled up and fixed on the rotating rod (161), and the end of the traction wire rope (163) is fixedly connected to the right end of the sliding ring plate (123).

5. A PE solid wall pipe inner and outer diameter measuring device according to claim 1, characterized in that: The traction assembly (16) comprises a rotating rod (161), the rotating rod (161) is rotatably connected to the fixed plate (26), an anti-dropping round block (162) is fixedly mounted on the front end of the rotating rod (161), a diameter increasing ring plate (163) is fixedly connected to the rear outer end of the rotating rod (161), the circumference of the outer ring wall of the diameter increasing ring plate (163) is equal to twice the circumference of the arc surface of the rotating rod (161), and a traction wire rope (164) spirally wound thereon is fixedly mounted on the rotating rod (161), and the end of the traction wire rope (164) is fixedly mounted on the rotating rod (161). The end is fixedly connected to the right end of the sliding ring plate (123); the diameter increasing ring plate (163) is fixedly mounted with a second traction wire rope (165) spirally wound thereon; the winding direction of the first traction wire rope (164) and the second traction wire rope (165) is opposite; the right end of the three-claw chuck (14) is fixedly mounted with a rectangular plate (166); the front end of the rectangular plate (166) is rotatably connected to a pulley column (167); the end of the second traction wire rope (165) is wound on the pulley column (167) and then fixedly connected to the left end of the sliding ring plate (123).

6. A PE solid wall pipe inner and outer diameter measuring device according to claim 1, characterized in that: The guide rod (122) comprises a fixed round rod, the ends of the support rods (121) are fixedly mounted with the fixed round rod, the left end of the fixed round rod is provided with a round rod assembly, the round rod assembly is composed of a plurality of round rods, the right end of the round rod is fixedly mounted with a threaded rod, and the left ends of the round rod and the fixed round rod are both provided with a threaded groove that matches with the adjacent threaded rod.

7. A PE solid wall pipe inner and outer diameter measuring device according to claim 1, characterized in that: The guide rod 2 (23) comprises a fixed square column, and the opposite ends of the rectangular rod 1 (21) and the rectangular rod 2 (22) are fixedly installed with fixed square columns, and a square rod assembly is arranged between the fixed square columns. The square rod assembly is composed of a plurality of square columns, and the square column and the right end of the fixed square column on the left are fixedly installed with a threaded rod 2, and the left end of the square column and the left end of the fixed square column on the right are both provided with a threaded groove 2 that matches the threaded rod 2.

8. A PE solid wall pipe inner and outer diameter measuring device according to claim 1, characterized in that: The control rod (152) comprises a connecting rod, the left end of the sliding ring plate (123) is symmetrically fixedly mounted with the connecting rod, the left end of the connecting rod slides left and right to penetrate the positioning ring plate (124) and the rotating ring plate (151), the left end of the connecting rod is provided with a thread groove three, the thread groove three is internally threadedly connected with an assembly rod, the assembly rod is composed of a plurality of thread rods three and a plurality of round rods, the left end of the thread rod three is fixedly mounted with a round rod, and the round rod is provided with a thread groove four that matches the thread rod three.

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