Hinge lug hole diameter measuring device
By designing a hole diameter measuring device for the ear holes, using elastic parts and display components, the problems of inconvenient operation and large errors of traditional measurement methods are solved, and a more accurate and convenient measurement process is achieved.
Patent Information
- Application Number
- CN202420973316.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-08
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-05-08
AI Technical Summary
The traditional method of measuring hole diameter of the ear hole is inconvenient to operate and has large errors. The reading of the handheld vernier caliper is unstable, which can easily lead to inaccurate measurement data.
A hinge hole diameter measuring device is designed, including a guide rod, a measurement assembly and a display assembly. The measuring assembly uses an elastic member to open the outer support rod to the outside, and the contact ball is in contact with the hinge hole to fix the measuring device; the display assembly reads the inner diameter value through the scale and pointer.
This device makes the readings not need to be handheld, makes the operation more convenient, the readings are accurate and the error is small, avoiding error problems in traditional methods.
Smart Images
Figure CN222652108U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of measuring instruments, in particular to a device for measuring the diameter of an ear hole. Background Art
[0002] The reaming hole diameter measuring device is a tool for measuring the reaming hole diameter, which is usually used to detect the manufacturing quality and dimensional accuracy of hinges and other products. The traditional reaming hole diameter measurement method usually uses handheld measuring tools such as vernier calipers for measurement. When measuring, you need to hold the vernier caliper while reading and recording the data, which is inconvenient to operate, and it is easy to cause the reading to change during recording, resulting in inaccurate measurement data and large errors. Utility Model Content
[0003] In view of the deficiencies in the prior art, the utility model provides a device for measuring the diameter of an ear hole, which solves the technical problems that the prior measuring tools are inconvenient to operate and have large errors.
[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: a device for measuring the diameter of an ear hole, comprising a guide rod, the outer wall of which is provided with a measuring component fixed in the ear hole in an externally spread manner, and one end of the guide rod is provided with a display component for measuring the inner diameter of the ear hole by distance;
[0005] The measuring assembly includes at least three outer support rods, one end of which is hinged on the outer wall of the guide rod, and the other end of the outer support rod is detachably mounted with a contact ball through a threaded hole. The outer wall of the outer support rod is hinged to one end of the inner support rod, and the other end of the inner support rod is hinged to an elastic member, which is movably arranged inside the guide rod.
[0006] Preferably, the elastic member includes a movable block movably connected inside the guide rod, the movable block is fixed to one end of the push rod, the push rod passes through the guide rod and extends to the outside, and a spring is provided on the side of the movable block away from the guide rod, and the spring is placed in the guide rod.
[0007] Preferably, a through hole is provided on the outer wall of the guide rod for movement of the connection between the inner support rod and the movable block.
[0008] Preferably, an end cap is threadedly connected to one end of the guide rod.
[0009] Preferably, the display assembly includes a pointer fixedly connected to the other end of the push rod and a fixing ring fixedly connected to one end of the guide rod, and a scale used in conjunction with the pointer is fixedly provided on the fixing ring.
[0010] Preferably, a strap is fixedly provided on the outer wall of the guide rod, and the front and back surfaces of both ends of the strap are respectively provided with a Velcro fleece surface and a Velcro hook surface.
[0011] Preferably, a bubble level for horizontal calibration is also embedded on the outer wall of the guide rod.
[0012] By means of the above technical solution, the utility model provides a device for measuring the diameter of ear holes, which has at least the following beneficial effects:
[0013] 1. The device for measuring the diameter of the ear hole is provided with a measuring component, and the elastic force of the elastic member is used to open the outer support rod outward, so that the contact ball at one end of the outer support rod just contacts the ear hole. Since the spring can still maintain elasticity, the whole measuring device can be fixed on one side of the ear hole, so that the reading does not need to be held by hand, the operation is more convenient, the reading is not easy to change, the reading is more accurate, and the error is small.
[0014] 2. The reaming hole diameter measuring device is provided with a display component. When the measuring component is opened outward, the push rod can move outward. The inner diameter value is indicated on the scale. The position where the pointer points to the scale changes, so that the inner diameter value can be read.
[0015] 3. The ear hole diameter measuring device can be provided with a strap so that the measuring components can be stored and folded together and then fixed to prevent them from opening when not in use.
[0016] 4. The ear hole diameter measuring device can keep the whole in a horizontal state during measurement by setting a bubble level, avoiding the problem of inaccurate readings caused by overall deflection. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:
[0018] Figure 1 It is a schematic diagram of the structure of the utility model as a whole when measuring the inner diameter of the ear hole;
[0019] Figure 2 It is a schematic diagram of the overall three-dimensional structure of the utility model;
[0020] Figure 3 This is a schematic diagram of the structure of the internal section of the guide rod and the disassembly of the spring and the end cover of the utility model;
[0021] Figure 4 It is a schematic diagram of the structure of the utility model with the outer support rod and the contact ball separated.
[0022] Reference numerals:
[0023] 1. Guide rod; 11. End cover; 12. Through hole; 2. Measuring assembly; 21. Outer support rod; 22. Inner support rod; 23. Movable block; 24. Push rod; 25. Spring; 26. Contact ball; 261. Threaded hole; 3. Display assembly; 31. Pointer; 32. Fixing ring; 33. Scale; 4. Strap; 41. Velcro fleece surface; 42. Velcro hook surface; 5. Bubble level. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] Hinge ears are ear-shaped parts installed on hinges, which are used to connect and fix objects, and play the role of supporting, fixing and connecting, so that the connected objects can be opened and closed or rotated flexibly while maintaining stability. They are widely used in doors, windows, boxes, hatches and other objects that need to be opened and closed or rotated, and play the role of connecting and supporting, so that these objects can be easily opened or closed while maintaining stability.
[0026] Embodiment 1:
[0027] Based on the technical defects of the existing technology that require handheld measuring tools during measurement, which leads to inconvenient reading and large errors, please refer to Figure 1-Figure 4 The utility model provides a device for measuring the diameter of a reamed ear hole. The elastic force of an elastic member is used to open an outer support rod 21 outward, and a contact ball 26 at one end of the outer support rod 21 just contacts the reamed ear hole. Since the spring 25 can still maintain elasticity, the entire measuring device can be fixed on one side of the reamed ear hole. In this way, it is not necessary to hold the device in hand when reading the value, which is more convenient to operate, and the reading is not easy to change. The reading is more accurate and has a small error. A measuring component 2 is provided on the outer wall of the guide rod 1 and is fixed in the reamed ear hole in an externally expanded manner. A display component 3 for measuring the inner diameter of the reamed ear hole by distance is provided at one end of the guide rod 1. When measuring, one end of the measuring component 2 is placed in the reamed ear hole. After releasing the measuring component 2, the measuring component 2 is opened outward until it contacts the inner wall of the reamed ear hole. Then, after releasing the measuring component 2, the display component 3 is used to read the inner diameter of the reamed ear hole.
[0028] To facilitate the measurement of the inner diameter of the reaming hole and to be able to fix the entire device on one side of the reaming hole during measurement, please refer to Figure 1 and Figure 2The measuring assembly 2 includes at least three outer support rods 21, one end of the outer support rod 21 is hinged on the outer wall of the guide rod 1, and the other end of the outer support rod 21 is detachably mounted with a contact ball 26 through a threaded hole 261. The outer wall of the outer support rod 21 is hinged to one end of the inner support rod 22, and the other end of the inner support rod 22 is hinged to an elastic member, which is movably arranged inside the guide rod 1; after loosening the outer support rod 21, the elastic force of the elastic member is used to open the outer support rod 21 outward, so that the contact ball 26 contacts the inner wall of the reamed ear hole to achieve the purpose of measuring the inner diameter of the reamed ear hole, and at least three outer support rods 21 are set, so that centering can be automatically achieved to avoid the problem of inaccurate inner diameter measurement.
[0029] In order to facilitate the elastic force of the outer support rod 21, please refer to Figure 3 The elastic member includes a movable block 23 movably connected to the inside of the guide rod 1. The movable block 23 is fixed to one end of a push rod 24. The push rod 24 penetrates the guide rod 1 and extends to the outside. A spring 25 is provided on the side of the movable block 23 away from the guide rod 1. The spring 25 is placed in the guide rod 1. When the outer support rod 21 is closed, the spring 25 is in a compressed state. When the outer support rod 21 is released, the spring 25 extends and pushes the movable block 23 to move. The movable block 23 opens the outer support rod 21 through the inner support rod 22.
[0030] In order to facilitate the smooth movement of the movable block 23 and the inner support rod 22, a through hole 12 is opened on the outer wall of the guide rod 1 for the movement of the connection between the inner support rod 22 and the movable block 23, ensuring that the connection between the inner support rod 22 and the movable block 23 can move along the through hole 12 to avoid structural interference problems.
[0031] After the spring 25 is used for a long time, the elastic force of the spring 25 decreases, which will affect the overall fixation and cause the problem of unstable fixation. To solve this problem, an end cap 11 is threadedly connected at one end of the guide rod 1. After the end cap 11 is removed, the spring 25 can be pulled out of the guide rod 1 to facilitate the replacement of the spring 25.
[0032] When the measuring assembly 2 is opened and fixed on one side of the reaming hole, the inner diameter of the reaming hole needs to be read. Please refer to Figure 2 The display component 3 includes a pointer 31 fixedly connected to the other end of the push rod 24 and a fixed ring 32 fixedly connected to one end of the guide rod 1. A scale 33 used in conjunction with the pointer 31 is fixedly arranged on the fixed ring 32. When the measuring component 2 is expanded, the push rod 24 will move outward, and the push rod 24 will drive the pointer 31 to move. There is an inner diameter value on the scale 33, and the position where the pointer 31 points to the scale 33 changes, so that the inner diameter value can be read.
[0033] During measurement, once the whole body tilts, each outer support rod 21 cannot be fully opened, which will cause inaccurate readings. To solve this problem, a bubble level 5 for horizontal calibration is embedded on the outer wall of the guide rod 1. During measurement, the bubble level 5 is observed to determine whether the whole body is level. If it is not level, it needs to be adjusted in time.
[0034] Embodiment 2:
[0035] When the entire measuring device is not in use, in order to reduce its occupied space, the measuring component 2 needs to be closed. To prevent the closed measuring component 2 from opening, please refer to Figure 2 On the basis of the first embodiment, a strap 4 is fixedly provided on the outer wall of the guide rod 1, and a Velcro fleece surface 41 and a Velcro hook surface 42 are respectively provided on the front and back sides of both ends of the strap 4; by utilizing the Velcro fleece surface 41 and the Velcro hook surface 42, the outer support rod 21 can be tied up by the strap 4 to prevent it from automatically opening, so as to achieve the purpose of convenient storage.
[0036] It can be known from the above embodiments that during measurement, one end of the measuring component 2 is placed in the ear hole. After the measuring component 2 is released, the spring 25 stretches and pushes the movable block 23 to move. The movable block 23 opens the outer support rod 21 through the inner support rod 22, so that the contact ball 26 contacts the inner wall of the ear hole. Since the spring 25 can still maintain its elasticity, the entire measuring device can be fixed on one side of the ear hole, so that it does not need to be held when reading. After that, after releasing the measuring component 2, the expansion of the measuring component 2 will cause the push rod 24 to move outward, and the push rod 24 drives the pointer 31 to move. There is an inner diameter value on the scale 33, and the position where the pointer 31 points to the scale 33 changes, so that the inner diameter value can be read.
[0037] It should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.
[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A device for measuring the diameter of an ear hole, comprising a guide rod (1), characterized in that: A measuring component (2) is provided on the outer wall of the guide rod (1) and is fixed in the reaming hole in an externally spread manner. A display component (3) for measuring the inner diameter of the reaming hole by distance is provided at one end of the guide rod (1); The measuring assembly (2) comprises at least three outer support rods (21), one end of the outer support rod (21) is hinged on the outer wall of the guide rod (1), the other end of the outer support rod (21) is detachably mounted with a contact ball (26) through a threaded hole (261), the outer wall of the outer support rod (21) is hinged to one end of an inner support rod (22), the other end of the inner support rod (22) is hinged to an elastic member, and the elastic member is movably arranged inside the guide rod (1).
2. The device for measuring the diameter of ear holes according to claim 1, characterized in that: The elastic member comprises a movable block (23) movably connected inside the guide rod (1); the movable block (23) is fixed to one end of a push rod (24); the push rod (24) penetrates the guide rod (1) and extends to the outside; a spring (25) is provided on the side of the movable block (23) away from the guide rod (1); the spring (25) is placed inside the guide rod (1).
3. The device for measuring the diameter of ear holes according to claim 1, characterized in that: A through hole (12) is provided on the outer wall of the guide rod (1) for movement of the connection between the inner support rod (22) and the movable block (23).
4. The device for measuring the diameter of ear holes according to claim 1, characterized in that: An end cap (11) is threadedly connected at one end of the guide rod (1).
5. The device for measuring the diameter of ear holes according to claim 2, characterized in that: The display assembly (3) comprises a pointer (31) fixedly connected to the other end of the push rod (24) and a fixing ring (32) fixedly connected to one end of the guide rod (1), wherein a scale (33) used in conjunction with the pointer (31) is fixedly arranged on the fixing ring (32).
6. The device for measuring the diameter of ear holes according to claim 1, characterized in that: A binding belt (4) is fixedly provided on the outer wall of the guide rod (1), and a Velcro fleece surface (41) and a Velcro hook surface (42) are respectively provided on the front and back surfaces of both ends of the binding belt (4).
7. The device for measuring the diameter of ear holes according to claim 1, characterized in that: A bubble level (5) for horizontal calibration is also embedded on the outer wall of the guide rod (1).