Water pipe diameter measuring device for municipal drainage

Abstract

The present invention discloses a water pipe diameter measuring device for municipal drainage, comprising: a positioning mechanism, which comprises two groups of fixed disks, a first connecting tube, a second connecting tube, and four driving components, wherein the fixed disk is provided with two pairs of through holes along its radial direction, a rotatable driving tube is provided in the through holes, a first threaded rod is provided in the driving tube, two second openings are provided on the first threaded rod, a limiting rod is provided in the second opening, two driving tube ends are connected by a connecting rod, a gear is coaxially provided on the connecting rod, four long strip-shaped first openings are provided at intervals on the second connecting tube, the driving component comprises a driving plate and a push-pull rod, and a plurality of meshing teeth are provided at intervals along its length direction on the driving plate; and a measuring mechanism, which is rotatably connected to the second connecting tube. By setting a positioning mechanism, the present invention can limit the measuring mechanism through the second connecting tube and the fixed disk, thereby improving the accuracy of the measurement result.

Description

Technical Field

[0001] The present invention relates to the technical field of water pipe diameter measurement, and more specifically, to a water pipe diameter measurement device for municipal drainage. Background Art

[0002] Municipal water supply and drainage simply refers to the city's water supply and drainage, referred to as "municipal water supply and drainage". In municipal water supply and drainage, water pipes, as the main conveying device, occupy an important position in municipal water supply and drainage. In actual use, when a section of the pipeline needs to be replaced, the diameter of the old pipe needs to be measured. The patent with application number "202321621573.7" discloses a municipal drainage pipe diameter measuring device, which includes a ring plate and a scale. A bidirectional threaded rod is provided on the ring plate, and two threaded sleeves are provided on the threaded rod and a fixing rod is provided on the threaded sleeve. The diameter of the water pipe is found by the fixing rod and measured by a grooved scale. This measuring device cannot fix the measuring device during the measurement process, which is inconvenient for measurement. Summary of the invention

[0003] The present invention provides a water pipe diameter measuring device for municipal drainage, which can limit the measuring mechanism through a second connecting tube and a fixing plate by arranging a positioning mechanism, thereby improving the accuracy of the measuring result.

[0004] In order to achieve these purposes and other advantages of the present invention, a water pipe diameter measuring device for municipal drainage is provided, comprising:

[0005] The positioning mechanism comprises two groups of fixed disks, a first connecting tube for connecting the two fixed disks, a second connecting tube connected to one of the fixed disks, and four driving components. The fixed disk is an annular structure. Two pairs of through holes are arranged on the fixed disk along its radial direction. The angle between the two through holes in each pair of through holes is 180°, and the two pairs of through holes are not on the same vertical plane. A rotatable driving tube is arranged in the through hole. The driving tube has an internal thread. A matching hollow first threaded rod is arranged in the driving tube. The end of the first threaded rod extends out of the driving tube. Two long second openings are arranged on the first threaded rod. An L-shaped limiting rod is arranged in the second opening. One side of the limit rod is connected to the fixed plate, wherein the two driving cylinder ends in each pair of through holes are connected by a connecting rod, a gear is coaxially arranged on the connecting rod, four long strip-shaped first openings are arranged at intervals on the second connecting cylinder, four driving assemblies are arranged in a one-to-one correspondence with the four connecting rods, the driving assembly includes a driving plate arranged in the second connecting cylinder, an L-shaped push-pull rod connected to the driving plate at one end, the other ends of the four push-pull rods pass through the four first openings in a one-to-one correspondence to drive the driving plate to move, a plurality of meshing teeth are arranged at intervals along the length direction of the driving plate, and the meshing teeth mesh with the corresponding gears to drive the connecting rod to rotate;

[0006] The measuring mechanism comprises a connecting head detachably connected to the second connecting tube, a measuring disk rotatably connected to the connecting head, and a measuring plate arranged on the measuring disk, a second threaded rod rotatably arranged on the measuring disk, the second threaded rod is a bidirectional thread, the second threaded rod is provided with two threaded nuts, a horizontal rod and a calibration plate are arranged on the nut, the angle between the horizontal rod and the calibration plate is 180° and the upper surface of the calibration plate is flush with the upper surface of the horizontal rod, two sliding openings are arranged on the measuring plate, two calibration plates pass through the two sliding openings horizontally in a one-to-one correspondence, and scale lines are arranged on both sides of the sliding opening to measure the distance between the horizontal rod and the central axis of the measuring disk.

[0007] Preferably, a spherical body is provided at the end of the first threaded rod.

[0008] Preferably, the length of the driving cylinder is greater than the length of the through hole.

[0009] Preferably, an annular first slide rail is provided at intervals in the through hole, the first slide rail is coaxially arranged with the through hole, a plurality of first sliding blocks are provided at intervals on the outer side wall of the driving cylinder, and the plurality of first sliding blocks are slidably connected with the plurality of first slide rails in a one-to-one correspondence.

[0010] Preferably, the driving plate is provided with two second slide rails, the second slide rails are provided with a second slider, the second slider is provided with a rod body, the rod body is provided with a fixing ring, the fixing ring is coaxially arranged with the connecting rod, the fixing ring is provided with a third slide rail, the connecting rod is provided with a third slider, and the third slider is slidably connected to the third slide rail.

[0011] Preferably, two drive rings are slidably provided on the second connecting tube, and the end of the push-pull rod is located between the two drive rings, wherein two limit blocks are provided on the second connecting tube, and the two drive rings are located between the two limit blocks.

[0012] The present invention has at least the following beneficial effects:

[0013] The present invention, by providing a positioning mechanism, can limit the measuring mechanism through the second connecting tube and the fixed disk, thereby improving the accuracy of the measuring result; by providing a driving plate and a connecting rod, the driving tube is driven to rotate, and then the first threaded rod is driven to move, and the distance between the first threaded rod and the fixed disk is adjusted, so that the water pipe diameter measuring device can be applied to water pipes of different sizes of inner diameters; the first threaded rod is limited by providing a second opening on the first threaded rod and a corresponding limiting rod; the present invention, by providing a driving tube with a length greater than the length of the through hole, can expand the length adjustment range of the first threaded rod, so that the water pipe diameter measuring device can be applied to water pipes of different diameters, thereby improving the use range of the water pipe diameter measuring device; the present invention, by providing a driving tube with a length greater than the length of the through hole, can expand the length adjustment range of the first threaded rod, so that the water pipe diameter measuring device can be applied to water pipes of different diameters, thereby improving the use range of the water pipe diameter measuring device; The invention discloses that the connecting rod can rotate relative to the driving plate by arranging the rod body, the fixing ring, the third slide rail and the third slider, and the driving plate can move relative to the connecting rod by arranging the second slide rail and the second slider. At the same time, the driving plate is limited by arranging the second slide rail, the second slider, the third slide rail and the third slider to prevent the driving rod from being separated from the connecting rod. The invention discloses that the distance between the two horizontal rods (the inner diameter of the water pipe to be measured) can be observed in real time by arranging the rotatable measuring disk, the measuring plate and the calibration plate, which is more conducive to operation and improves the measurement accuracy. At the same time, the calibration plate can also limit the position of the horizontal rod to prevent the horizontal rod from rotating with the nut. The connecting head is arranged to realize the detachable connection between the second connecting tube and the measuring disk, which is convenient for the storage of the water pipe diameter measuring device.

[0014] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of a water pipe diameter measuring device for municipal drainage according to one of the technical solutions of the present invention;

[0016] Figure 2 A schematic diagram of the structure of a fixed disk according to one of the technical solutions of the present invention;

[0017] Figure 3 for Figure 2 A magnified view of middle;

[0018] Figure 4 A schematic diagram of the structure of a driving plate according to one of the technical solutions of the present invention;

[0019] Figure 5 This is a structural schematic diagram of the second connecting tube described in one of the technical solutions of the present invention;

[0020] Figure 6 This is a schematic structural diagram of a measuring plate according to one of the technical solutions described in the present invention. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0022] like Figure 1-6 As shown, the present invention provides a water pipe diameter measuring device for municipal drainage, comprising:

[0023] The positioning mechanism comprises two groups of fixed disks 1, a first connecting tube 2 for connecting the two fixed disks 1, a second connecting tube 3 connected to one of the fixed disks 1, and four driving components. The fixed disk 1 is an annular structure. Two pairs of through holes 19 are arranged on the fixed disk 1 along its radial direction. The angle between the two through holes 19 in each pair of through holes 19 is 180°, and the two pairs of through holes 19 are not in the same vertical plane. A rotatable driving tube 4 is arranged in the through hole 19. The driving tube 4 has an internal thread. A matching hollow first threaded rod 5 is arranged in the driving tube 4. The end of the first threaded rod 5 extends out of the driving tube 4 (the end of the first threaded rod 5 is used to contact the inner wall of the water pipe to be measured, and the distance between the end of the first threaded rod 5 and the central axis of the fixed disk 1 is greater than the outer diameter of the fixed disk 1). Two long second openings 7 are arranged on the first threaded rod 5. An L-shaped limiting rod 8 is arranged in the second opening 7. One side of the limiting rod 8 is connected to the fixed disk 1. The ends of the two driving tubes 4 in each pair of through holes 19 are connected to the fixed disk 1. The connecting rod 20 is connected (the connecting rod 20 and its corresponding two driving cylinders 4 are coaxially arranged), the connecting rod 20 is coaxially provided with a gear 22, the second connecting cylinder 3 is provided with four long strip-shaped first openings 9 at intervals, and the four driving components are arranged one-to-one correspondingly with the four connecting rods 20 (two connecting rods 20 are provided in each fixed disk 1), the driving component includes a driving plate 21 arranged in the second connecting cylinder 3, an L-shaped push-pull rod 10 connected to the driving plate 21 at one end, and the other ends of the four push-pull rods 10 pass through the four first openings 9 in a one-to-one correspondence to drive the driving plate 21 to move (one side of the push-pull rod 10 passes through the first opening 9 so as to drive the driving plate 21 to move in the horizontal direction through the push-pull rod 10), and the driving plate 21 is provided with a plurality of meshing teeth 27 at intervals along its length direction, and the meshing teeth 27 mesh with the corresponding gears 22 to drive the connecting rod 20 to rotate, and the rotation of the connecting rod 20 drives the driving cylinder 4 to rotate, and the rotation of the driving cylinder 4 drives the first threaded rod 5 to move toward the inner wall of the water pipe to be measured;

[0024] The measuring mechanism includes a connecting head 13 detachably connected to the second connecting tube 3 (coaxial with the second connecting tube 3 and can be screwed), a measuring disk 14 rotatably connected to the connecting head 13 (the measuring disk 14 is circular and coaxially arranged with the second connecting tube 3), and a measuring plate 28 arranged on the measuring disk 14. A second threaded rod 15 is rotatably arranged on the measuring disk 14 (the second threaded rod 15 is rotatably connected to the measuring disk 14 through a bearing), the second threaded rod 15 is a bidirectional thread (the thread directions of the second threaded rods 15 located on both sides of the measuring disk 14 are opposite), and the second threaded rod 15 is provided with two threads Nut 17 (fixed disk 1 is located between two nuts 17), a horizontal rod 16 and a calibration plate 18 are provided on the nut 17 (the horizontal rod 16 is perpendicular to the second threaded rod 15, and the calibration plate 18 is perpendicular to the second threaded rod 15), the angle between the horizontal rod 16 and the calibration plate 18 is 180° and the upper surface of the calibration plate 18 is flush with the upper surface of the horizontal rod 16, two sliding openings 29 are provided on the measuring plate 28, and the two calibration plates 18 pass through the two sliding openings 29 horizontally in a one-to-one correspondence, and scale lines are provided on both sides of the sliding opening 29 to measure the distance between the horizontal rod 16 and the central axis of the measuring disk 14.

[0025] In this technical solution, the first connecting tube 2, the second connecting tube 3, and the fixed disk 1 are coaxially arranged, and the diameters of the first connecting tube 2 and the second connecting tube 3 are larger than the inner ring diameter of the fixed disk 1. The first fixed tube is used to connect the two fixed disks 1. The central axis of the through hole 19 is arranged along the radial direction of the fixed disk 1. The central axes of the two through holes 19 in each pair of through holes 19 are located on the same straight line, and the connecting line of the central axes of the two pairs of through holes 19 is not located on the same plane. The end of the driving tube 4 facing the central axis of the fixed disk 1 is located on the inner ring of the fixed disk 1, and the driving tube 4 is coaxially arranged with the through hole 19; one side of the limiting rod 8 passes through the second opening 7 and extends into the first threaded rod 5 and the side can slide along the second opening 7, and the other side is connected to the fixed disk 1. The fixed plate 1 is connected and the edge is parallel to the first threaded rod 5, the second opening 7 is arranged along the length direction of the first threaded rod 5, and the measuring mechanism is used to measure the diameter of the water pipe; the first opening 9 is arranged along the length direction of the second connecting tube 3; the lengths of the four push-pull rods 10 are different (but the edges of the push-pull rods 10 at the first opening 9 are located on the same vertical plane), and the lengths of the push-pull rods 10 are arranged based on the positions of the corresponding connecting rods 20, for example, the push-pull rod 10 corresponding to the connecting rod 20 farthest from the measuring mechanism has the longest length, and the push-pull rod 10 corresponding to the connecting rod 20 closest to the measuring mechanism has the shortest length; in actual arrangement (the lengths of the four drive plates 21 are equal), the four groups of drive components do not interfere with each other in space, so as to Figure 1 and Figure 3Taking the view direction (from the direction of the measuring mechanism to the fixed plate 1) as an example, the arrangement of the four sets of drive components is further described as follows: The gear 22 in the fixed plate 1 (A fixed plate 1) close to the measuring mechanism is arranged as follows: Figure 3 As shown, the gear 22 on the horizontally arranged connecting rod 20 is arranged close to the driving cylinder 4 on the left side and the driving plate 21 is located above the corresponding connecting rod 20, the gear 22 on the vertically arranged connecting rod 20 is arranged close to the driving cylinder 4 on the bottom and the driving plate 21 is located on the left side of the corresponding connecting rod 20, and for another fixed plate 1 (B fixed plate 1), the gear 22 on the horizontally arranged connecting rod 20 is arranged close to the driving cylinder 4 on the right side and the driving plate 21 is located below the corresponding connecting rod 20, the driving plate 21 or the push-pull rod 10 (specifically, the driving plate 21 passes through or push-pull rod 10 passes through according to the actual setting. If the driving plate 21 is longer, the driving plate 21 passes through. If the driving plate 21 is shorter, the push-pull rod 10 passes through) passes through the corresponding position of the A fixed disk 1. The gear 22 on the vertically arranged connecting rod 20 is arranged close to the driving cylinder 4 located above and the driving plate 21 is located on the right side of the corresponding connecting rod 20. The driving plate 21 or the push-pull rod 10 passes through the corresponding position of the A fixed disk 1, that is, the four driving plates 21, the four push-pull rods 10, and the four gears 22 do not interfere with each other in the spatial setting. The driving plate 21 and the push-pull rod 10 are both arranged along the length direction of the second connecting cylinder 3.

[0026] During use, first put the positioning mechanism of the water pipe diameter measuring device into the water pipe to be measured (before putting it in, the distance between the first threaded rod 5 and the fixed disk 1 can be preliminarily adjusted by the push-pull rod 10), then drive the four push-pull rods 10 to move at the same time until the four push-pull rods 10 can no longer move at the same time, and then drive the four push-pull rods 10 one by one to move until each push-pull rod 10 can no longer move (those that can move continue to move, and those that cannot move do not move). At this time, the first connecting tube 2 and the second connecting tube 3 are coaxial with the water pipe to be measured. After fixing the position of the positioning mechanism (the second threaded rod 15 contacts the end face of the water pipe to be measured), rotate the second threaded rod 15 until the two horizontal rods 16 contact the inner wall of the water pipe to be measured, observe the distance between the two horizontal rods 16 in real time through the measuring plate 28, and measure multiple data by rotating the measuring disk 14 and adjusting the distance between the horizontal rods 16.

[0027] By adopting this technical solution, the present invention can limit the measuring mechanism through the second connecting tube 3 and the fixed disk 1 by setting a positioning mechanism, thereby improving the accuracy of the measurement result; by setting the driving plate 21 and the connecting rod 20, the driving tube 4 is driven to rotate, and then the first threaded rod 5 is driven to move, and the distance between the first threaded rod 5 and the fixed disk 1 is adjusted, so that the water pipe diameter measuring device can be applied to water pipes with different sizes of inner diameters, thereby expanding the use range of the water pipe diameter measuring device; by setting the second opening 7 on the first threaded rod 5 and correspondingly setting the limiting rod 8, the first threaded rod 5 is limited; by setting the A threaded rod 5 can not only fix the second connecting tube 3, but also the four first threaded rods 5 can make the second connecting tube 3 coaxial with the water pipe to be tested under the limit, thereby improving the measurement accuracy; the present invention can visually observe the distance between the two horizontal rods 16 (the inner diameter of the water pipe to be measured) in real time by setting a rotatable measuring disk 14, a measuring plate 28, and a calibration plate 18, which is more conducive to operation and improves the measurement accuracy. At the same time, the calibration plate 18 can also limit the position of the horizontal rod 16 to prevent the horizontal rod 16 from rotating with the nut 17; the measuring disk 14 is set to be rotatable to facilitate verification of whether the measured position is the diameter of the water pipe.

[0028] In another technical solution, a sphere 6 is disposed at the end of the first threaded rod 5. With this technical solution, the present invention provides the sphere 6, and the arc surface of the sphere 6 is more conducive to the first threaded rod 5 contacting the inner wall of the water pipe to be detected to improve the accuracy of measurement.

[0029] In another technical solution, the length of the driving cylinder 4 is greater than the length of the through hole 19. With this technical solution, the present invention can expand the length adjustment range of the first threaded rod 5 by setting the length of the driving cylinder 4 to be greater than the length of the through hole 19, so that the water pipe diameter measuring device is suitable for water pipes of different diameters, thereby improving the use range of the water pipe diameter measuring device.

[0030] In another technical solution, a plurality of annular first slide rails are arranged in the through hole 19, the first slide rails are arranged circumferentially along the side wall of the through hole 19, and a plurality of first slide rails are arranged in a spaced relationship along the length direction of the through hole 19. The first slide rails are arranged coaxially with the through hole 19, and a plurality of first sliders are arranged in a spaced relationship on the outer side wall of the driving cylinder 4, and the plurality of first sliders are slidably connected to the plurality of first slide rails in a one-to-one correspondence. With this technical solution, the present invention realizes the rotational connection between the driving cylinder 4 and the through hole 19 by arranging the first slide rails and the first sliders.

[0031] In another technical solution, the driving plate 21 is provided with two second slide rails 25 (the meshing teeth 27 are located between the two second slide rails 25, and the second slide rails 25 are arranged along the length direction of the driving plate 21), the second slide rail 25 is provided with a second slider 26 (the second slider 26 is slidably connected to the second slide rail 25), the second slider 26 is provided with a rod body 24 (the rod body 24 is perpendicular to the driving plate 21), the rod body 24 is provided with a fixing ring 23, the fixing ring 23 is coaxially arranged with the connecting rod 20 (the connecting rod 20 passes through two fixing rings 23), the fixing ring 23 is provided with a third slide rail (the third slide rail is annular and is coaxially arranged with the fixing ring 23), the connecting rod 20 is provided with a third slider, and the third slider is slidably connected to the third slide rail. By adopting this technical solution, the present invention realizes that the connecting rod 20 can rotate relative to the driving plate 21 by setting the rod body 24, the fixing ring 23, the third slide rail, and the third slider, and realizes that the driving plate 21 can move relative to the connecting rod 20 by setting the second slide rail 25 and the second slider 26. At the same time, the second slide rail 25, the second slider 26, the third slide rail, and the third slider are set to limit the driving plate 21 to prevent the driving rod from being separated from the connecting rod 20.

[0032] In another technical solution, two driving rings 11 (the diameter of the driving ring 11 is larger than the diameter of the second connecting tube 3) are slidably provided on the second connecting tube 3, and the end of the push-pull rod 10 is located between the two driving rings 11, wherein two limit blocks 12 are provided on the second connecting tube 3, and the two driving rings 11 are located between the two limit blocks 12 to limit the position of the driving ring 11. With this technical solution, the present invention can simultaneously drive four push-pull rods 10 to reciprocate along the first opening 9 by providing two driving rings 11, which is more convenient for operation.

[0033] The number of devices and processing scales described here are used to simplify the description of the present invention. Applications, modifications and variations of the water pipe diameter measuring device for municipal drainage of the present invention will be obvious to those skilled in the art.

[0034] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes, and they can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A water pipe diameter measuring device for municipal drainage, characterized in that: include: The positioning mechanism comprises two groups of fixed disks, a first connecting tube for connecting the two fixed disks, a second connecting tube connected to one of the fixed disks, and four driving components. The fixed disk is an annular structure. Two pairs of through holes are arranged on the fixed disk along its radial direction. The angle between the two through holes in each pair of through holes is 180°, and the two pairs of through holes are not on the same vertical plane. A rotatable driving tube is arranged in the through hole. The driving tube has an internal thread. A matching hollow first threaded rod is arranged in the driving tube. The end of the first threaded rod extends out of the driving tube. Two long second openings are arranged on the first threaded rod. An L-shaped limiting rod is arranged in the second opening. One side of the limit rod is connected to the fixed plate, wherein the two driving cylinder ends in each pair of through holes are connected by a connecting rod, a gear is coaxially arranged on the connecting rod, four long strip-shaped first openings are arranged at intervals on the second connecting cylinder, four driving assemblies are arranged in a one-to-one correspondence with the four connecting rods, the driving assembly includes a driving plate arranged in the second connecting cylinder, an L-shaped push-pull rod connected to the driving plate at one end, the other ends of the four push-pull rods pass through the four first openings in a one-to-one correspondence to drive the driving plate to move, a plurality of meshing teeth are arranged at intervals along the length direction of the driving plate, and the meshing teeth mesh with the corresponding gears to drive the connecting rod to rotate; The measuring mechanism comprises a connecting head detachably connected to the second connecting tube, a measuring disk rotatably connected to the connecting head, and a measuring plate arranged on the measuring disk, a second threaded rod rotatably arranged on the measuring disk, the second threaded rod is a bidirectional thread, the second threaded rod is provided with two threaded nuts, a horizontal rod and a calibration plate are arranged on the nut, the angle between the horizontal rod and the calibration plate is 180° and the upper surface of the calibration plate is flush with the upper surface of the horizontal rod, two sliding openings are arranged on the measuring plate, two calibration plates pass through the two sliding openings horizontally in a one-to-one correspondence, and scale lines are arranged on both sides of the sliding opening to measure the distance between the horizontal rod and the central axis of the measuring disk.

2. The water pipe diameter measuring device for municipal drainage according to claim 1, characterized in that: A spherical body is disposed at the end of the first threaded rod.

3. The water pipe diameter measuring device for municipal drainage according to claim 1, characterized in that: The length of the driving cylinder is greater than the length of the through hole.

4. The water pipe diameter measuring device for municipal drainage according to claim 3, characterized in that: A plurality of annular first slide rails are arranged at intervals in the through hole, the first slide rails are coaxially arranged with the through hole, a plurality of first sliders are arranged at intervals on the outer side wall of the driving cylinder, and the plurality of first sliders are slidably connected with the plurality of first slide rails in a one-to-one correspondence.

5. The water pipe diameter measuring device for municipal drainage according to claim 4, characterized in that: The driving plate is provided with two second slide rails, the second slide rails are provided with a second slider, the second slider is provided with a rod body, the rod body is provided with a fixing ring, the fixing ring is coaxially arranged with the connecting rod, the fixing ring is provided with a third slide rail, the connecting rod is provided with a third slider, and the third slider is slidably connected to the third slide rail.

6. The water pipe diameter measuring device for municipal drainage according to claim 5, characterized in that: Two driving rings are slidably provided on the second connecting tube, and the end of the push-pull rod is located between the two driving rings. The second connecting tube is provided with two limiting blocks, and the two driving rings are located between the two limiting blocks.

Images