CN206488733U - A kind of inner diameter measuring device - Google Patents

Abstract

The utility model relates to an inner diameter measuring device, which comprises a U-shaped hand-held part, a horizontally arranged connecting rod, a supporting column, a first cylindrical platform, a first cone, a second cylindrical platform, a second cone, a supporting ball, and a measuring rod. , Measuring ball and spring; the U-shaped hand-held part is made of spring steel plate, the left side of the connecting rod is connected with the support column, the first cylindrical platform and the first cone in sequence from right to left, and the end of the first cone is inlaid with Supporting the ball, the right side of the connecting rod is connected with the measuring rod, the right end of the measuring rod is connected with one end of the spring, the left side of the second cylindrical platform is provided with an annular groove, and the other end of the spring is connected with the groove bottom of the annular groove. The right side of the second cylindrical platform is connected with the second cone, the end of the second cone is inlaid with a measuring ball, and the two ends of the U-shaped hand-held part are respectively provided with collars, and the two collars are respectively connected to the second cone in a sleeve-connected manner. A cylindrical pedestal and the second cylindrical pedestal are fixedly connected together. The utility model can quickly perform multi-point measurement of the inner diameter of the hole, and has high detection efficiency.

Description

A device for measuring inner diameter

technical field

The utility model belongs to the technical field of measuring devices, in particular to an inner diameter measuring device.

Background technique

In the machining process, a measuring ruler (such as a vernier caliper or micrometer, etc.) is generally used to measure the inner diameter of the processed hole to judge whether it meets the processing size requirements. Since the processed hole usually has deviations, it is not an ideal circle, so Multi-point measurement is required, however, there is a problem of low detection efficiency when using the current measuring ruler to measure the aperture at multiple points.

Utility model content

The purpose of the utility model is to overcome the deficiencies in the prior art, and provide an inner diameter measuring device, which can quickly perform multi-point measurement of the inner diameter of the hole.

For realizing above-mentioned object, the technical scheme that the utility model adopts is:

An inner diameter measuring device, comprising a U-shaped handle, a horizontally arranged connecting rod, a support column, a first cylindrical pedestal, a first cone, a second cylindrical pedestal, a second cone, a supporting ball, a measuring rod, a measuring ball and Spring; the U-shaped hand-held part is made of a spring steel plate, the bend of the U-shaped hand-held part is covered with a cotton sleeve, and the left side of the connecting rod is connected to the support column and the first cylinder in turn from right to left platform and the first cone, the end of the first cone is inlaid with the support ball, the right side of the connecting rod is connected with the measuring rod, and the right end of the measuring rod is connected with one end of the spring , the left side of the second cylindrical platform is provided with an annular groove, the other end of the spring is connected to the bottom of the annular groove, and the right side of the second cylindrical platform is connected to the second cone , the end of the second cone is inlaid with the measuring ball, and the two ends of the U-shaped handle are respectively provided with collars, and the two collars are respectively connected to the first cylinder in a sleeve-connected manner. platform and the second cylindrical platform are fixedly connected together.

Further preferably, a scale is provided on the measuring rod, and the scale on the measuring rod is arranged laterally on the shaft.

Further preferably, the supporting ball and the measuring ball are spherical balls of equal size, and both the supporting ball and the measuring ball are made of steel.

Compared with the prior art, the utility model has the advantages that:

The utility model provides an inner diameter measuring device, which has a simple structure, is convenient to use, and can quickly perform multi-point measurement of the inner diameter of a hole, thus improving the detection efficiency.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

Fig. 1 is a schematic structural diagram of an inner diameter measuring device provided by the present invention.

Explanation of reference signs:

101, connecting rod; 102, U-shaped hand-held part; 103, cotton sleeve; 104, support column; 105, measuring rod; 106, support ball; 107, first cylindrical platform; 108, second cylindrical platform; 109, first cone Body; 110, second cone; 111, measuring ball; 112, spring; 113, groove.

detailed description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

In describing the present utility model, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical" , "horizontal", "top", "bottom", "inner", "outer" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the utility model, rather than Any indication or implication that a referenced device or element must have a particular orientation, be constructed, and operate in a particular orientation should not be construed as limiting the invention.

As shown in Figure 1, an inner diameter measurement device provided by the embodiment of the present invention can quickly perform multi-point measurement of the inner diameter of the hole. Support column 104 , first cylindrical base 107 , first cone 109 , second cylindrical base 108 , second cone 110 , support ball 106 , measuring rod 105 , measuring ball 111 and spring 112 .

In the embodiment of the present utility model, the U-shaped handle 102 is made of a spring steel plate, so that it can quickly return to its original shape after being deformed, and is durable. The bend of the U-shaped handle 102 is covered with a cotton sleeve 103. Afterwards, it can be more comfortable. Similarly, the cotton cover 103 can also be replaced by a rubber cover or a plastic cover. The left side of the connecting rod 101 is connected to the support column 104, the first cylindrical platform 107 and the first cone 109 in sequence from right to left. The end of a cone 109 is inlaid with a supporting ball 106, the right side of the connecting rod 101 is connected with the measuring rod 105, the right end of the measuring rod 105 is connected with one end of the spring 112, and the left side of the second cylindrical platform 108 is provided with an annular groove 113, the other end of the spring 112 is connected to the groove bottom of the annular groove 113, the right side of the second cylindrical platform 108 is connected to the second cone 110, and the end of the second cone 110 is inlaid with a measuring ball 111, U-shaped handheld Both ends of the part 102 are respectively provided with collars 114 , and the two collars 114 are fixedly connected with the first cylindrical platform 107 and the second cylindrical platform 108 respectively in a telescopic manner.

In the embodiment of the present utility model, a scale is provided on the measuring rod 105, and the scale on the measuring rod 105 is arranged laterally on the shaft. The supporting ball 106 and the measuring ball 111 are spherical balls of equal size, and both the supporting ball 106 and the measuring ball 111 are made of steel.

When the internal diameter measuring device provided by the embodiment of the present invention is used for measuring the internal diameter of the pipe, the length between the support ball 106 and the measuring ball 111 is constant before the measurement, and such length can be determined according to the size of the internal diameter of the pipe to be measured. Design, if it is necessary to measure a pipe body with an inner diameter of 10cm ± 0.2cm, the length design of the connecting rod 101 can be changed so that the spring is not compressed by the force of the pipe wall before the measurement is performed. , the overlapping place of the measuring rod 105 and the second cylindrical stand 108 is the 0 o'clock position of the scale, the length between the leftmost end of the supporting ball 106 and the rightmost end of the measuring ball 111 is 10.2cm, and the spring 112 can be Compression is carried out, so that when measuring, you can hold the U-shaped hand-held part 102, insert one end inlaid with the measuring ball 111 obliquely into the tube body, and then insert the end inlaid with the support ball 106 into the tube body At this time, the spring 112 will be compressed, and a part of the right end of the measuring rod 105 will enter the annular groove 113 provided by the second cylindrical platform 108, so that the compressed length of the spring (that is, the measuring rod 105 enters the annular groove 113) The length in the groove 113) is known by the scale indication on the measuring rod 105, so that the actual size of the inner diameter of the pipe can be drawn, at this time, the actual size of the inner diameter of the pipe is 10.2cm minus the spring on the measuring rod 105. The compressed length can be quickly calculated, and similarly, if it is necessary to measure the distance between two points (i.e. the inner diameter of the pipe) on the remaining positions of the inner wall of the pipe, it is not necessary to take out the measuring device, only the U-shaped hand-held part 102 is held in hand and rotated , change the measurement position, and then the measured inner diameter of the tube can be obtained, which is convenient and quick.

In summary, the inner diameter measuring device provided by the embodiment of the present invention has a simple structure, is easy to use, and can quickly perform multi-point measurement of the inner diameter of the hole, thereby improving the detection efficiency.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications, substitutions and modifications, the scope of the present invention is defined by the claims and their equivalents.

Claims (3)

1. An inner diameter measuring device is characterized in that it comprises a U-shaped handle (102), a connecting rod (101) arranged laterally, a support column (104), a first cylindrical platform (107), a first cone (109 ), the second cylindrical platform (108), the second cone (110), the support ball (106), the measuring rod (105), the measuring ball (111) and the spring (112); the U-shaped handle (102) Made of spring steel plate, the bend of the U-shaped handle (102) is covered with a cotton sleeve (103), and the left side of the connecting rod (101) is sequentially connected to the support column (104) from right to left , the first cylindrical platform (107) and the first cone (109), the end of the first cone (109) is inlaid with the supporting ball (106), the right side of the connecting rod (101) is connected with the The measuring rod (105) is connected, the right end of the measuring rod (105) is connected with one end of the spring (112), and the left side of the second cylindrical platform (108) is provided with an annular groove (113), The other end of the spring (112) is connected to the groove bottom of the annular groove (113), the right side of the second cylindrical platform (108) is connected to the second cone (110), and the first The ends of the two cones (110) are inlaid with the measuring ball (111), and the two ends of the U-shaped handle (102) are respectively provided with collars (114), and the two collars (114) The method of sleeve connection is fixedly connected with the first cylindrical platform (107) and the second cylindrical platform (108) respectively. 2. The inner diameter measuring device according to claim 1, characterized in that, the measuring rod (105) is provided with a scale, and the scale on the measuring rod (105) is arranged laterally on its shaft. 3. internal diameter measuring device as claimed in claim 1, is characterized in that, described supporting ball (106) and measuring ball (111) are the spherical balls of equal size, and described supporting ball (106) and measuring ball (111) ) are made of steel materials.