Instrument for detecting diameter of internal thread
By designing an internal thread diameter detection instrument and using a support and a sliding detection part in conjunction with a micrometer, the problem of low efficiency and poor accuracy of manual detection in the existing technology is solved, and the automatic and accurate detection of the internal thread casing diameter is achieved.
Patent Information
- Application Number
- CN202423055317.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-11
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-12-11
AI Technical Summary
The existing technology lacks specialized inspection tools, resulting in the inspection of internal threaded casings relying on manual spot checks and empirical visual inspections, which are inefficient and inaccurate, and cannot effectively detect the integrity of the thread wire.
An internal thread diameter detection instrument is designed, which includes a support part, a sliding detection part and a micrometer. The automatic detection of the internal thread diameter is achieved through the sliding fit and measurement of the detection head.
It realizes efficient and accurate detection of the diameter of the internal threaded casing, improves detection efficiency and accuracy, and reduces human errors.
Smart Images
Figure CN223412648U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of internal thread diameter gauges, in particular to an instrument for detecting internal thread diameters. Background Art
[0002] In the prior art, during the production process of internally threaded sleeves, due to equipment or human factors, the threads inside the internally threaded sleeves are prone to burrs or breakage, affecting the use and sealing performance of the internally threaded sleeves, and posing a safety hazard in high-temperature and high-pressure pipelines connected through the internally threaded sleeves.
[0003] To prevent defective products from entering the market, efficient and accurate inspection of the internal threads of internally threaded casings is essential during factory inspection. However, existing technologies lack specialized inspection tools, requiring manual spot checks and relying primarily on the inspector's experience and visual inspection. This results in low efficiency and accuracy. Utility Model Content
[0004] The embodiment of the present application solves the problem that there is no special inspection tool in the prior art by providing an internal thread diameter detection instrument, and can only rely on manual spot checks and mainly rely on the inspector's experience to make judgments through visual inspection, resulting in low inspection efficiency and poor accuracy.
[0005] The technical solutions adopted in the embodiments of this application are as follows.
[0006] A gauge for detecting internal thread diameters comprises a support member, a first detecting member sliding on the support member, a second detecting member sliding within the support member, a measuring member for detecting the moving distance of the second detecting member, and a handle for driving the second detecting member to move; a first groove is provided within the support member; the first detecting member and the second detecting member are both located in the first groove and slide; the measuring member is arranged on one side of the support member and the detecting end of the measuring member is passed through the support member and connected to the second detecting member; a second groove is provided at the bottom of the first groove; the handle is located in the second groove and slides; a pillar is provided at the bottom of the support member.
[0007] As a further improvement of the above technical solution:
[0008] The first detection member and the second detection member are both provided with detection heads; the detection heads are semi-cylindrical; when the two groups of detection heads are in contact, the two groups of detection heads are in a full circle.
[0009] A reset member is provided between the first detecting member and the second detecting member; the reset member presses against the second detecting member until the second detecting member slides to the sidemost edge of the second groove.
[0010] The measuring piece is a dial indicator.
[0011] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:
[0012] 1. Due to the use of a long strip-shaped support member, a first groove is provided on the support member, a first detection member and a second detection member are slidably connected in the first groove, the first detection member is limited to any position of the first groove, the second detection member slides in the first groove, a measuring member is provided at one end of the support member, the measuring member is a dial indicator, the measuring member detects the sliding distance of the second detection member, the end face of the measuring member is connected to the second detection member, a reset member is provided between the second detection member and the first detection member, the reset member presses against the first detection member and the second detection member so that the second detection member is away from the first detection member, a second groove is provided at the bottom of the first groove, and the first detection member slides in the second groove. The movable connection is provided with a handle, and the handle is moved to make the second detection part slide. A pillar is provided at the bottom of the support part, and the position of the pillar corresponds to the handle. The first detection part and the second detection part are both provided with detection heads, and the two sets of detection heads are semi-cylindrical. When the two sets of detection heads are in contact, a full circle is formed. At this time, the value of the measuring part is 0. When in use, pinch the handle and the pillar until the two sets of detection heads are in contact and the value displayed on the measuring part is 0, and the detection head is inserted into the inner hole to be detected, and the handle is released until the two sets of detection heads are against the side wall of the inner hole. At this time, the value displayed on the measuring part is read to detect its diameter, thereby realizing the detection of the inner hole diameter. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a structural schematic diagram of the internal thread diameter detection instrument in the present utility model.
[0014] Figure 2 It is a top view of the internal thread diameter detection instrument in the present utility model.
[0015] In the figure: 1. support member; 11. first slot; 12. second slot; 2. first detection member; 3. second detection member; 4. measuring member; 5. handle; 6. support; 7. detection head; 8. reset member. DETAILED DESCRIPTION
[0016] The embodiment of the present application solves the problem that there is no special inspection tool in the prior art by providing an internal thread diameter detection instrument, and can only rely on manual spot checks and mainly rely on the inspector's experience to make judgments through visual inspection, resulting in low inspection efficiency and poor accuracy.
[0017] The technical solution in the embodiment of this application is to solve the above problems. The overall idea is as follows
[0018] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.
[0019] A gauge for detecting internal thread diameters comprises a support 1, a first detecting member 2 sliding on the support 1, a second detecting member 3 sliding in the support 1, a measuring member 4 for detecting the moving distance of the second detecting member 3, and a handle 5 for driving the second detecting member 3 to move; a first groove 11 is provided in the support 1; the first detecting member 2 and the second detecting member 3 are both located in the first groove 11 and slide; the measuring member 4 is arranged on one side of the support 1 and the detecting end of the measuring member 4 is passed through the support 1 and connected to the second detecting member 3; a second groove 12 is provided at the bottom of the first groove 11; the handle 5 is located in the second groove 12 and slides; a pillar 6 is provided at the bottom of the support 1.
[0020] The first detection member 2 and the second detection member 3 are both provided with detection heads 7 ; the detection heads 7 are semi-cylindrical; when the two groups of detection heads 7 are in contact, the two groups of detection heads 7 are in a full circle.
[0021] A reset member 8 is provided between the first detection member 2 and the second detection member 3 ; the reset member 8 presses against the second detection member 3 until the second detection member 3 slides to the sidemost edge of the second slot 12 .
[0022] The measuring part 4 is a dial indicator.
[0023] The support member 1 is in the shape of a long strip, and a first groove 11 is provided on the support member 1. The first detection member 2 and the second detection member 3 are slidably connected in the first groove 11. The first detection member 2 is limited to any position of the first groove 11, and the second detection member 3 slides in the first groove 11. A measuring member 4 is provided at one end of the support member 1. The measuring member 4 is a micrometer. The measuring member 4 detects the sliding distance of the second detection member 3. The end face of the measuring member 4 is connected to the second detection member 3. A reset member 8 is provided between the second detection member 3 and the first detection member 2. The reset member 8 presses against the first detection member 2 and the second detection member 3 so that the second detection member 3 is away from the first detection member 2. The bottom of the first groove 11 is provided with a second groove 1 2. A handle 5 is slidably connected in the second groove 12. The handle 5 is moved to slide the second detection member 3. A pillar 6 is provided at the bottom of the support member 1. The pillar 6 corresponds to the position of the handle 5. The first detection member 2 and the second detection member 3 are both provided with detection heads 7. The two groups of detection heads 7 are semi-cylindrical. When the two groups of detection heads 7 are in contact, a full circle is formed. At this time, the value of the measuring member 4 is 0. When in use, pinch the handle 5 and the pillar 6 until the two groups of detection heads 7 are in contact and the measuring member 4 displays a value of 0. Insert the detection head 7 into the inner hole to be detected, loosen the handle 5 until the two groups of detection heads 7 are against the side wall of the inner hole, and then read the value displayed by the measuring member 4 to detect its diameter.
[0024] Since the support member 1 is in the shape of a long strip, a first groove 11 is provided on the support member 1, and the first detection member 2 and the second detection member 3 are slidably connected in the first groove 11. The first detection member 2 is limited to any position of the first groove 11, and the second detection member 3 slides in the first groove 11. A measuring member 4 is provided at one end of the support member 1, and the measuring member 4 is a micrometer. The measuring member 4 detects the sliding distance of the second detection member 3. The end face of the measuring member 4 is connected to the second detection member 3. A reset member 8 is provided between the second detection member 3 and the first detection member 2. The reset member 8 presses against the first detection member 2 and the second detection member 3 so that the second detection member 3 is away from the first detection member 2. A second groove 12 is provided at the bottom of the first groove 11. A handle 5 is slidably connected in the second groove 12. The handle 5 is moved to slide the second detection part 3. A pillar 6 is provided at the bottom of the support part 1. The pillar 6 corresponds to the position of the handle 5. The first detection part 2 and the second detection part 3 are both provided with a detection head 7. The two groups of detection heads 7 are semi-cylindrical. When the two groups of detection heads 7 are in contact, a full circle is formed. At this time, the value of the measuring part 4 is 0. When in use, pinch the handle 5 and the pillar 6 until the two groups of detection heads 7 are in contact and the measuring part 4 displays a value of 0, insert the detection head 7 into the inner hole to be detected, loosen the handle 5 until the two groups of detection heads 7 are against the side wall of the inner hole, then read the value displayed by the measuring part 4, thereby detecting its diameter, thereby realizing the detection of the inner hole diameter.
[0025] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.
[0026] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.
Claims
1. A device for detecting internal thread diameter, characterized in that: The invention comprises a support member (1), a first detection member (2) sliding on the support member (1), a second detection member (3) sliding in the support member (1), a measuring member (4) detecting the moving distance of the second detection member (3), and a handle (5) driving the second detection member (3) to move; a first slot (11) is provided in the support member (1); the first detection member (2) and the second detection member (3) are both located in the first slot (11) and slide; the measuring member (4) is arranged on one side of the support member (1) and the detection end of the measuring member (4) is passed through the support member (1) and connected to the second detection member (3); a second slot (12) is provided at the bottom of the first slot (11); the handle (5) is located in the second slot (12) and slides; a pillar (6) is provided at the bottom of the support member (1).
2. The internal thread diameter measuring instrument according to claim 1, characterized in that: The first detection member (2) and the second detection member (3) are both provided with detection heads (7); the detection heads (7) are semi-cylindrical; when the two groups of detection heads (7) are in contact, the two groups of detection heads (7) are in a full circle.
3. The internal thread diameter measuring instrument according to claim 1, characterized in that: A reset member (8) is provided between the first detection member (2) and the second detection member (3); the reset member (8) presses against the second detection member (3) until the second detection member (3) slides to the outermost side of the second groove (12).
4. The internal thread diameter detection instrument according to claim 1, characterized in that: The measuring piece (4) is a dial indicator.