Pipe thickness gauge

Abstract

The utility model discloses a pipe thickness gauge, which comprises a base, a pipe supporting mechanism and a measuring mechanism are arranged on the base, the pipe supporting mechanism comprises a plurality of V-shaped pipe supporting frames which are arranged side by side, and a plurality of rollers are arranged on the inner sides of the pipe supporting frames; the measuring mechanism comprises a support, a moving seat capable of moving up and down is arranged on the support, an upper measuring arm and a lower measuring arm are arranged on the moving seat, a measuring meter is arranged at the front end of the upper measuring arm, and a bottom rod matched with the measuring meter is arranged at the front end of the lower measuring arm. According to the utility model, the two measuring arms and the branch pipe frame are arranged, a pipe fitting can be moved on the branch pipe frame, the lower measuring arm extends into the pipe fitting, then the pipe fitting is rotated, the wall thickness of the pipe fitting can be measured through the measuring meter on the upper measuring arm and the bottom rod on the lower measuring arm, the wall thickness of the deep part of the pipe fitting can be measured, and the use is stable and convenient.

Description

Technical Field

[0001] This utility model relates to the technical field of pipe performance testing devices, and in particular to a pipe thickness gauge. Background Technology

[0002] During the period after the composite pipe is extruded but before it cools and sets, the pipe wall still retains a certain degree of fluidity. Because there is no internal support, slight material sags within the pipe, causing the outer and inner walls to not be strictly concentric circles. This means the pipe wall thickness is not completely uniform, requiring measurement to determine if the error is within acceptable limits. Currently, pipe wall thickness is measured manually using calipers along the circumference of the pipe. However, manual measurement only measures the ends of the pipe and cannot determine the internal wall thickness. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a pipe thickness gauge, thereby effectively solving the deficiencies in the prior art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a pipe thickness gauge, including a base, on which a branch pipe mechanism and a measuring mechanism are provided. The branch pipe mechanism includes several V-shaped branch pipe supports arranged side by side, and several rollers are provided on the inner side of the branch pipe supports. The measuring mechanism includes a support, on which a movable seat is provided that can move up and down. An upper measuring arm and a lower measuring arm are provided on the movable seat. A measuring gauge is provided at the front end of the upper measuring arm, and a base rod is provided at the front end of the lower measuring arm in conjunction with the measuring gauge.

[0005] Furthermore, a connecting plate is integrally provided between the upper measuring arm and the lower measuring arm, and the connecting plate is hinged to the movable seat. A counterweight is provided on the rear side of the connecting plate, and the weight of the counterweight is greater than the sum of the weights of the upper measuring arm and the lower measuring arm.

[0006] Furthermore, a level measuring instrument is installed on the upper measuring arm.

[0007] Furthermore, the base is equipped with a horizontal rail that mates with the bracket, and the bracket is movably mounted on the horizontal rail.

[0008] Furthermore, two screws are vertically mounted on the bracket, and the movable seat is fitted onto the screws. Two worm gears are rotatably mounted in the movable seat, and the two worm gears are screwed onto the two screws respectively. A worm is mounted on the movable seat in conjunction with the two worm gears, and a turntable is mounted on the outer end of the worm.

[0009] Furthermore, two push rods are provided on the movable seat between the two screws, and an elastic element is provided in the movable seat to tend to force the push rods away from the screws. A tightening rod is screwed to one side of the movable seat, and a conical block is provided on the inner side of the tightening rod. An inclined surface is provided on the rear side of the push rod in conjunction with the conical block.

[0010] The above-mentioned technical solution of this utility model has the following beneficial effects: This utility model is equipped with two measuring arms and a pipe support, which can move the pipe on the pipe support so that the lower measuring arm extends into the pipe and then rotates the pipe. The wall thickness of the pipe can be measured by the measuring gauge on the upper measuring arm and the bottom rod on the lower measuring arm together. The wall thickness deep in the pipe can be measured, and it is stable and convenient to use. Attached Figure Description

[0011] Figure 1 This is a side view of an embodiment of the present utility model;

[0012] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0013] Figure 3 This is a side view of the pipe support frame according to an embodiment of the present utility model;

[0014] Figure 4 This is a cross-sectional schematic diagram of the worm gear and worm shaft assembly in an embodiment of this utility model;

[0015] Figure 5 This is a cross-sectional schematic diagram of the fit between the top rod and the tightening rod in an embodiment of this utility model. Detailed Implementation

[0016] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the present invention.

[0017] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," and "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0018] like Figure 1-5 As shown, a pipe thickness gauge according to this embodiment includes a base 1, on which a branch pipe mechanism and a measuring mechanism are mounted. The branch pipe mechanism includes several V-shaped branch pipe supports 2 arranged side by side, and several rollers 3 are arranged on the inner side of the branch pipe supports 2. The measuring mechanism includes a support 4, on which a movable seat 5 is movably mounted vertically. An upper measuring arm 6 and a lower measuring arm 7 are mounted on the movable seat 5. A measuring gauge 8 is mounted at the front end of the upper measuring arm 6, and a base rod 9 is mounted at the front end of the lower measuring arm 7 in conjunction with the measuring gauge 8. In this embodiment, the measuring gauge 8 is a digital micrometer, which enables... When in use, the dial indicator has a movable measuring rod 10. When the pipe is rotated, the lower end of the movable measuring rod 10 is kept pressed against the outer wall of the pipe, so that the wall thickness of the pipe can be continuously measured. The pipe is placed on the pipe support 2 to facilitate the rotation of the pipe. The movable measuring rod 10 of the dial indicator is lifted and the pipe is inserted between the upper measuring arm 6 and the lower measuring arm 7. The bottom rod 9 on the lower measuring arm 7 is pressed against the inner side of the inner wall of the pipe, and the movable measuring rod 10 of the digital display dial indicator on the upper measuring arm 6 is pressed against the outer side of the inner wall of the pipe. By rotating the pipe, the wall thickness of the pipe can be continuously measured.

[0019] Preferably, a connecting plate 11 is integrally provided between the upper measuring arm 6 and the lower measuring arm 7. The connecting plate 11 is hinged to the movable seat 5. A counterweight 12 is provided on the rear side of the connecting plate 11. The weight of the counterweight 12 is greater than the sum of the weights of the upper measuring arm 6 and the lower measuring arm 7. In its natural state, the counterweight 12 swings downward, and the upper measuring arm 6 and the lower measuring arm 7 tilt upward. In use, the bottom rod 9 on the lower measuring arm 7 presses against the inner wall of the pipe. When the pipe rotates, it rotates in a circle along the outer wall of the pipe. However, the inner wall and the outer wall of the pipe are not concentric circles. When the wall thickness of the pipe changes, the lower measuring arm 7 can swing so that the bottom rod 9 remains pressed against the inner wall of the pipe. The movable measuring rod 10 of the dial indicator is used to continuously measure the wall thickness of the pipe.

[0020] Preferably, a level measuring instrument 13 is provided on the upper measuring arm 6, which can adjust the level of the upper measuring arm 6 before measurement to improve the accuracy of measurement;

[0021] Preferably, a horizontal rail 14 is provided on the base 1 in conjunction with the bracket 4. The bracket 4 is movably mounted on the horizontal rail 14. For lighter pipes, the pipe can be moved axially to fit onto the lower measuring arm 7. For heavier pipes, the bracket 4 can be moved so that the lower measuring arm 7 extends into the pipe, avoiding the inconvenience of moving the pipe.

[0022] Preferably, two screws 15 are vertically arranged on the bracket 4, and the movable seat 5 is fitted onto the screws 15. Two worm gears 16 are rotatably arranged in the movable seat 5, and the two worm gears 16 are respectively screwed onto the two screws 15. A worm 17 is arranged on the movable seat 5 in conjunction with the two worm gears 16, and a turntable 18 is arranged at the outer end of the worm 17. By rotating the worm 17 through the turntable 18, the worm 17 can drive the two worm gears 16 to rotate, and the worm gears 16 will generate vertical displacement on the screws 15, thereby driving the movable seat 5 to move up and down.

[0023] Preferably, two push rods 19 are provided on the movable seat 5 between the two screws 15. The movable seat 5 is provided with an elastic element 20 that tends to force the push rods 19 away from the screws 15. A tightening rod 21 is screwed to one side of the movable seat 5. A conical block 22 is provided on the inner side of the tightening rod 21. An inclined surface is provided on the rear side of the push rod 19 in conjunction with the conical block 22. In this embodiment, the elastic element 20 is a spring. The spring can tend to force the push rod 19 away from the screws 15. By rotating the tightening rod 21, the conical surface of the conical block 22 can be made to cooperate with the inclined surface to bring the push rod 19 closer to the screws 15 until the push rod 19 hits the screws 15. This can achieve the clamping and fixing of the movable seat 5 and the screws 15, and prevent the movable seat 5 from moving. A rubber pad can be provided at the front end of the push rod 19.

[0024] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A pipe caliper, characterized by: The device includes a base, on which a branch pipe mechanism and a measuring mechanism are mounted. The branch pipe mechanism includes several V-shaped branch pipe supports arranged side by side, and several rollers are mounted on the inner side of the branch pipe supports. The measuring mechanism includes a support, on which a movable seat is mounted that can move up and down. An upper measuring arm and a lower measuring arm are mounted on the movable seat. A measuring gauge is mounted at the front end of the upper measuring arm, and a base rod is mounted at the front end of the lower measuring arm in conjunction with the measuring gauge. A connecting plate is integrally provided between the upper measuring arm and the lower measuring arm. The connecting plate is hinged to the movable seat. A counterweight is provided on the rear side of the connecting plate. The weight of the counterweight is greater than the sum of the weights of the upper and lower measuring arms.

2. A pipe thickness gauge according to claim 1, characterised in that: A level measuring instrument is installed on the upper measuring arm.

3. A pipe thickness gauge according to claim 1, characterised in that: The base is equipped with a horizontal rail that works in conjunction with the bracket, and the bracket is movably mounted on the horizontal rail.

4. A pipe thickness gauge according to claim 1, characterised in that: Two screws are vertically mounted on the bracket, and the movable seat is fitted onto the screws. Two worm gears are rotatably mounted in the movable seat, and the two worm gears are screwed onto the two screws respectively. A worm is mounted on the movable seat to cooperate with the two worm gears, and a turntable is mounted on the outer end of the worm.

5. A pipe thickness gauge according to claim 4, characterised in that: Two push rods are provided on the movable seat between the two screws. An elastic element is provided in the movable seat to tend to force the push rods away from the screws. A tightening rod is screwed to one side of the movable seat. A conical block is provided on the inner side of the tightening rod. An inclined surface is provided on the rear side of the push rod in conjunction with the conical block.

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