CN222560860U - Gauge for measuring inner diameter - Google Patents
Gauge for measuring inner diameter Download PDFInfo
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- CN222560860U CN222560860U CN202421435323.9U CN202421435323U CN222560860U CN 222560860 U CN222560860 U CN 222560860U CN 202421435323 U CN202421435323 U CN 202421435323U CN 222560860 U CN222560860 U CN 222560860U
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- inner diameter
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Abstract
本实用新型公开了一种测量内径的检具，包括，百分表，所述百分表包括用以显示的表盘以及与所述表盘可滑动连接的检测杆，还包括：密封框，所述密封框内具有一容纳腔，所述表盘设置在所述容纳腔中，所述密封框的侧壁上开设有一通孔；密封管，其一端与所述通孔连接，所述检测杆的一端穿过所述通孔并可滑动的设置在所述密封管内；检测探头，其与所述密封管可滑动连接，所述检测探头的一端与所述检测杆抵接，另一端伸出所述密封管用以测量内径。本实用新型中，将百分表中的表盘隐藏在密封框内的容纳腔中，以避免粉尘等杂质从检测杆与表盘之间的间隙进入表盘，延长百分表的使用寿命。
The utility model discloses a gauge for measuring inner diameter, comprising a dial indicator, the dial indicator comprising a dial for display and a detection rod slidably connected to the dial, and further comprising: a sealing frame, the sealing frame having a accommodating cavity, the dial being arranged in the accommodating cavity, and a through hole being provided on the side wall of the sealing frame; a sealing tube, one end of which is connected to the through hole, one end of the detection rod passing through the through hole and slidably arranged in the sealing tube; a detection probe, which is slidably connected to the sealing tube, one end of the detection probe abuts against the detection rod, and the other end extends out of the sealing tube for measuring the inner diameter. In the utility model, the dial in the dial indicator is hidden in the accommodating cavity in the sealing frame to prevent dust and other impurities from entering the dial from the gap between the detection rod and the dial, thereby extending the service life of the dial indicator.
Description
Technical Field
The utility model relates to the technical field of inner diameter measurement, in particular to a gauge for measuring the inner diameter.
Background
For the measurement of various inner diameters, the dial indicator is generally stretched into the dial indicator, so that a detection rod of the dial indicator is propped against the inner wall of a workpiece to be measured, the stretching amount of the detection rod is converted into the reading of the dial, and then the inner diameter value of the workpiece to be measured is read.
However, because dial plate and the measuring rod in the dial indicator are in sliding connection, a certain gap exists between the measuring rod and the dial plate, and impurities such as dust easily enter the dial plate from the gap, so that the dial plate is damaged, the measuring rod cannot stretch out and draw back, and the like.
Disclosure of Invention
The utility model aims to solve the technical problems that impurities such as dust easily enter a dial from a gap between the dial and a detection rod in the prior art, so that the dial is damaged, the detection rod cannot stretch and retract, and the like.
The technical scheme adopted by the utility model for solving the technical problems is that the gauge for measuring the inner diameter comprises a dial plate for displaying and a detection rod which is slidably connected with the dial plate, and further comprises:
The dial is arranged in the accommodating cavity, and a through hole is formed in the side wall of the sealing frame;
one end of the sealing tube is connected with the through hole, and one end of the detection rod penetrates through the through hole and is slidably arranged in the sealing tube;
The detection probe is in sliding connection with the sealing tube, one end of the detection probe is in butt joint with the detection rod, and the other end of the detection probe stretches out of the sealing tube to measure the inner diameter.
Further, the outer diameter of the detection probe is equal to the inner diameter of the sealing tube;
The sealing tube is internally provided with a sealing hole, the detection rod is slidably arranged in the sealing hole, and the inner diameter of the sealing hole is equal to the outer diameter of the detection rod.
Further, a return spring is provided between the detection probe and the seal tube.
Further, a limiting groove is formed in the pipe wall of the sealing pipe along the length direction of the sealing pipe, a limiting protrusion is arranged on the detection probe, and the limiting protrusion can extend into the limiting groove and slide along the length direction of the sealing pipe.
Further, the sealing tube is provided with a first connecting section positioned in the through hole and a second connecting section positioned outside the through hole, and the diameter of the second connecting section is larger than that of the first connecting section, so that a step plugging surface is formed at the joint of the first connecting section and the second connecting section, and the step plugging surface is attached to the side wall of the sealing frame.
Further, one end of the sealing frame, which is far away from the sealing tube, is provided with an extension rod, one end of the extension rod is fixedly connected with the sealing frame, and the other end of the extension rod is in threaded connection with a fixed probe rod.
Further, the sealing frame is hexahedral, and the sealing frame comprises a top plate, a bottom plate and four side plates, and the top plate, the bottom plate and the four side plates surround to form a sealed accommodating cavity.
Further, the top plate is made of transparent glass materials.
Compared with the prior art, the utility model has at least the following beneficial effects:
The dial plate in the dial indicator is hidden in the containing cavity in the sealing frame, so that impurities such as dust can be prevented from entering the dial plate from a gap between the detection rod and the dial plate, the service life of the dial indicator is prolonged, then, the through hole is sealed through the sealing tube, the detection rod is driven to stretch and retract through sliding of the detection probe, and further, the numerical value change of the dial plate is converted, and the reading of the inner diameter to be measured is obtained.
Drawings
FIG. 1 is a schematic diagram of a structure of a gauge in an embodiment;
FIG. 2 is a schematic diagram of the structure of a dial indicator, a test probe and a seal tube in an embodiment;
FIG. 3 is a schematic diagram of the structure of a dial indicator and a test probe in an embodiment;
In the figure:
100. A sealing frame;
200. Sealing the tube; 201, a first connecting section, 202, a second connecting section, 203, a step plugging surface, 204, a limit groove, 210, a detection probe, 211, a limit protrusion, 220, an extension rod, 230, a fixed probe rod, 240 and a return spring;
300. Dial indicator 310, dial plate 320 and detection rod.
Detailed Description
The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.
Referring to fig. 1-3, the utility model discloses a gauge for measuring an inner diameter, comprising a dial plate 310 for displaying a dial plate 300, a detecting rod 320 slidably connected with the dial plate 310, and further comprising:
The dial plate 310 is arranged in the accommodating cavity, and a through hole is formed in the side wall of the seal frame 100;
A sealing tube 200 having one end connected to the through hole, and one end of the sensing rod 320 passing through the through hole and slidably disposed in the sealing tube 200;
and a detection probe 210 slidably connected to the sealing tube 200, wherein one end of the detection probe 210 is abutted against the detection rod 320, and the other end extends out of the sealing tube 200 to measure the inner diameter.
Specifically, the dial plate 310 in the dial indicator 300 is hidden in the accommodating cavity in the sealing frame 100, so that impurities such as dust can be prevented from entering the dial plate 310 from a gap between the detecting rod 320 and the dial plate 310, the service life of the dial indicator 300 is prolonged, then the through hole is sealed through the sealing tube 200, and the detecting probe 210 slides to drive the detecting rod to stretch and retract, so that the numerical value change of the dial plate 310 is converted, and the reading of the inner diameter to be measured is obtained.
Further, the outer diameter of the inspection probe 210 is equal to the inner diameter of the sealing tube 200;
the sealing tube 200 has a sealing hole therein, the detecting rod 320 is slidably disposed in the sealing hole, and an inner diameter of the sealing hole is equal to an outer diameter of the detecting rod 320.
The outer diameter of the detection probe 210 is equal to the inner diameter of the sealing tube 200, so that the detection probe 210 and the sealing tube 200 are excessively matched, the detection probe 210 is prevented from shaking left and right, and the measurement accuracy is improved.
The external diameter of the detecting rod 320 is equal to the internal diameter of the sealing hole, so that the detecting rod 320 cannot shake left and right, measurement accuracy is improved, and meanwhile, impurities such as dust can be prevented from entering the accommodating space from a gap between the detecting rod 320 and the sealing hole to damage the dial plate 310.
Further, a return spring 240 is provided between the inspection probe 210 and the sealing tube 200.
The reset spring 240 is provided, when the detection probe 210 is abutted against the inner wall of the workpiece to be detected and slides inwards, the reset spring 240 is compressed and the reading of the dial 310 is changed, after the measurement is completed, the detection probe 210 is loosened, and the detection probe 210 slides outwards to an initial position under the action of the reset spring 240.
Further, a limiting groove 204 is formed in the wall of the sealing tube 200 along the length direction thereof, a limiting protrusion 211 is formed on the detecting probe 210, and the limiting protrusion 211 can extend into the limiting groove 204 and slide along the length direction of the sealing tube 200.
The limit protrusion 211 and the limit groove 204 are arranged, when the detection probe 210 slides outwards until the limit protrusion 211 is abutted with one end of the limit groove, the detection probe 210 cannot slide outwards continuously, so that the detection probe 210 is prevented from falling off the seal tube 200, and when the detection probe 210 slides inwards until the limit protrusion 211 is abutted with the other end of the limit groove, the detection probe 210 cannot slide inwards continuously, so that the reset spring 240 is prevented from being excessively compressed, and meanwhile, the dial 310 is prevented from being damaged due to excessive shrinkage of the detection rod 320.
Further, the sealing tube 200 has a first connecting section 201 located in the through hole and a second connecting section 202 located outside the through hole, the diameter of the second connecting section 202 is larger than that of the first connecting section 201, so as to form a step plugging surface 203 at the connection between the first connecting section 201 and the second connecting section 202, and the step plugging surface 203 is attached to the side wall of the sealing frame 100.
Specifically, a step plugging surface 203 is formed at the connection position between the second connection section 202 and the first connection section 201, and the step plugging surface 203 is attached to the side wall of the sealing frame 100, so that the through hole is sealed, and dust is prevented from entering into the accommodating space to damage the dial 310.
Further, an extension rod 220 is disposed at one end of the sealing frame 100 away from the sealing tube 200, one end of the extension rod 220 is fixedly connected with the sealing frame 100, and the other end is in threaded connection with a fixed probe rod 230.
During measurement, one end of the fixed probe rod 230 abuts against one surface of the workpiece to be measured, the detection probe 210 abuts against the other surface of the workpiece to be measured, and the distance between the two surfaces is measured.
Meanwhile, since the fixed probe 230 is screwed with the extension rod 220, when the inner diameter to be measured is large, the longer fixed probe 230 can be replaced, and after the reading of the dial 310 is recalibrated, the workpiece with the larger inner diameter can be measured.
Further, the sealing frame 100 is in a hexahedral arrangement, and the sealing frame 100 includes a top plate, a bottom plate, and four side plates, where the top plate, the bottom plate, and the four side plates surround to form a sealed accommodating cavity.
Further, the top plate is made of transparent glass materials.
The top plate is made of transparent glass, so that a user can directly read the dial 310 through the top plate.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear are used in the embodiments of the present utility model) are merely for explaining the relative positional relationship, movement conditions, and the like between the components in a certain specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicators are changed accordingly.
Furthermore, descriptions such as those referred to herein as "first," "second," "a," and the like are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or an implicit indication of the number of features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "connected," "fixed," and the like are to be construed broadly, and for example, "fixed" may be fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements or in an interaction relationship between two elements, unless otherwise explicitly specified. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, the technical solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present utility model.
Claims (8)
1. The utility model provides a gauge of measurement internal diameter, includes, the percentage table including the dial plate that is used for showing and with dial plate sliding connection's measuring rod, its characterized in that still includes:
The dial is arranged in the accommodating cavity, and a through hole is formed in the side wall of the sealing frame;
one end of the sealing tube is connected with the through hole, and one end of the detection rod penetrates through the through hole and is slidably arranged in the sealing tube;
The detection probe is in sliding connection with the sealing tube, one end of the detection probe is in butt joint with the detection rod, and the other end of the detection probe stretches out of the sealing tube to measure the inner diameter.
2. The gauge for measuring an inner diameter of claim 1, wherein the outer diameter of the sensing probe is equal to the inner diameter of the sealing tube;
The sealing tube is internally provided with a sealing hole, the detection rod is slidably arranged in the sealing hole, and the inner diameter of the sealing hole is equal to the outer diameter of the detection rod.
3. The gauge for measuring an inner diameter of claim 1, wherein a return spring is disposed between the test probe and the sealing tube.
4. The gauge for measuring an inner diameter according to claim 1, wherein a limiting groove is formed in the wall of the sealing tube along the length direction of the sealing tube, a limiting protrusion is arranged on the detection probe, and the limiting protrusion can extend into the limiting groove and slide along the length direction of the sealing tube.
5. The gauge for measuring an inner diameter according to claim 1, wherein the sealing tube has a first connecting section located in the through hole and a second connecting section located outside the through hole, and the second connecting section has a larger diameter than the first connecting section so as to form a step plugging surface at a junction of the first connecting section and the second connecting section, and the step plugging surface is attached to a side wall of the sealing frame.
6. The gauge for measuring an inner diameter according to claim 1, wherein an extension rod is arranged at one end of the sealing frame far away from the sealing tube, one end of the extension rod is fixedly connected with the sealing frame, and a fixed probe rod is connected with the other end of the extension rod in a threaded manner.
7. The gauge for measuring an inner diameter according to claim 1, wherein the sealing frame is hexahedral, the sealing frame comprises a top plate, a bottom plate and four side plates, and the top plate, the bottom plate and the four side plates surround to form the sealed accommodating cavity.
8. The gauge of claim 7, wherein the top plate is made of a transparent glass material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421435323.9U CN222560860U (en) | 2024-06-21 | 2024-06-21 | Gauge for measuring inner diameter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421435323.9U CN222560860U (en) | 2024-06-21 | 2024-06-21 | Gauge for measuring inner diameter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222560860U true CN222560860U (en) | 2025-03-04 |
Family
ID=94751899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421435323.9U Active CN222560860U (en) | 2024-06-21 | 2024-06-21 | Gauge for measuring inner diameter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222560860U (en) |
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2024
- 2024-06-21 CN CN202421435323.9U patent/CN222560860U/en active Active
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