High-rigidity resonance rod

Abstract

The utility model relates to the technical field of precise instruments, in particular to a high-rigidity resonance rod, which comprises a barrel and a mounting bottom surface, a connecting structure is arranged at the top of the barrel, and the mounting bottom surface is connected to one side, far away from the connecting structure, of the barrel. A connecting ring, an inner ring and a mounting ring are sequentially arranged on the side wall of the cylinder body in a step shape in the direction from the connecting structure to the mounting bottom surface, the connecting ring, the inner ring and the mounting ring are coaxially arranged, and a mounting hole is coaxially formed in the mounting bottom surface relative to the cylinder body; a mounting sleeve is connected to the periphery of the barrel, and a mounting block is arranged on the mounting sleeve and faces the mounting bottom face. According to the utility model, on the premise that the mass is not greatly increased, the structural rigidity is obviously improved, and meanwhile, good frequency stability and high quality factor are kept, so that the increasingly improved performance requirements in the modern precision measurement field are met.

Description

Technical Field

[0001] This utility model relates to the field of precision instrument technology, and in particular to a high-rigidity resonant rod. Background Technology

[0002] As a core component of a vibration system, the performance of the resonant rod directly affects the measurement accuracy and system reliability. In existing technologies, resonant rods are mainly made of metal or semiconductor materials, and their structural forms include, but are not limited to, cantilever beam, double-end fixed support, and tuning fork types.

[0003] Existing resonant rod structures suffer from insufficient stiffness, leading to frequency stability issues. When the working environment experiences mechanical vibration or temperature changes, traditional resonant rods are prone to unexpected deformation, causing resonant frequency drift. For example, in atomic force microscopy applications, this frequency drift directly affects the probe's measurement accuracy. Utility Model Content

[0004] The main objective of this invention is to provide a high-rigidity resonant rod that significantly improves structural stiffness without substantially increasing mass, while maintaining good frequency stability and quality factor, in order to meet the increasingly demanding performance requirements of modern precision measurement.

[0005] To achieve the above objectives, this utility model proposes a high-rigidity resonant rod, comprising a cylindrical body and a mounting bottom surface. The top of the cylindrical body is provided with a connecting structure, and the mounting bottom surface is connected to the side of the cylindrical body away from the connecting structure. The sidewall of the cylindrical body is provided with a connecting ring, an inner ring, and a mounting ring in a stepped manner along the direction from the connecting structure to the mounting bottom surface. The connecting ring, the inner ring, and the mounting ring are coaxially arranged, and the mounting bottom surface is provided with a mounting hole coaxially with respect to the cylindrical body.

[0006] The outer periphery of the cylinder is connected to an installation sleeve, and the installation sleeve is provided with an installation block facing the installation bottom surface.

[0007] In one embodiment of this application, a stabilizing block protrudes from the inner wall of the mounting sleeve toward the mounting ring, the stabilizing block wrapping around the mounting ring and connected to one side of the inner ring;

[0008] The bottom surface of the connecting ring, the outer wall of the inner ring, and the stabilizing block together form an isolation cavity.

[0009] In one embodiment of this application, the stabilizing block is provided with a plurality of locking structures facing the mounting ring array, and the mounting ring is provided with a plurality of mating connection portions relative to the plurality of locking structures;

[0010] The locking structure includes a locking block and a locking spring. The stabilizing block has an adjustment groove relative to the locking spring. The locking block is connected to the locking spring and is positioned towards the mating connection part.

[0011] In one embodiment of this application, the mounting bottom surface passes through the mounting ring and is connected to the bottom of the inner ring. The bottom wall of the mounting bottom surface, the inner wall of the mounting ring, and the mounting sleeve together form a stable cavity.

[0012] When the cylinder is connected to the mounting sleeve, the mounting block passes through the stabilizing cavity and is connected to the mounting bottom surface.

[0013] In one embodiment of this application, a mounting portion is provided on the outer periphery of the bottom of the mounting sleeve along a direction away from the mounting sleeve, and a plurality of mounting holes are arrayed on the mounting portion.

[0014] In one embodiment of this application, the connecting structure wraps around the end of the mounting sleeve away from the mounting block, the connecting structure has a stable connecting portion protruding towards the mounting sleeve, and the mounting sleeve has a connecting groove towards the stable connecting portion. By adopting the above technical solution, this utility model has the following advantages:

[0015] 1. The resonant rod structurally comprises a cylindrical body and a mounting base. The mounting base has mounting holes coaxial with the cylindrical body, allowing the resonant rod to be quickly and easily secured in place. This facilitates both installation and removal. To improve the overall rigidity of the resonant rod and enhance its structural and performance stability, the cylindrical body is constructed with a stepped arrangement of a connecting ring, an inner ring, and a mounting ring. The connecting ring is located at the top of the cylindrical body and has the largest diameter. The inner ring is in the middle of the cylindrical body, and the mounting ring is at the bottom of the cylindrical body and has the smallest diameter. These three stepped rings interact to reinforce the structure and support each other, thereby improving the overall rigidity of the resonant rod and ensuring good frequency stability.

[0016] 2. An installation sleeve is provided on the outer circumference of the cylinder. The installation sleeve is fitted onto the outer circumference of the cylinder to further protect the resonant rod and improve the structural strength of the entire cylinder. The end of the connecting ring opposite to the inner ring is connected to a connecting structure. The connecting structure makes the connection between the resonant rod and the installation sleeve more stable. The installation sleeve has an installation block facing the bottom of the installation. When it is necessary to quickly fix the resonant rod, the cylinder can be connected to the installation sleeve through the connecting structure. The connection can be quickly and stably completed by passing external bolts through the installation holes and screwing them into the installation holes. The above structure can effectively improve the stiffness of the resonant rod and the strength of the entire structure, and can effectively ensure the stability of the entire resonant rod during operation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the high-rigidity resonant rod of this utility model;

[0019] Figure 2 This is a cross-sectional view of the high-rigidity resonant rod of this utility model.

[0020] Explanation of icon numbers:

[0021] 1. Cylinder body; 11. Connecting structure; 12. Mounting bottom surface; 13. Connecting ring; 14. Inner ring; 15. Mounting ring; 2. Mounting sleeve; 21. Stabilizing block; 22. Mounting block; 23. Mounting part; 3. Locking structure; 31. Locking block; 32. Locking spring.

[0022] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0024] Reference Figures 1 to 2 To achieve the above objectives, this utility model proposes a high-rigidity resonant rod, which includes a cylindrical body 1 and a mounting bottom surface 12. The top of the cylindrical body 1 is provided with a connecting structure 11. The mounting bottom surface 12 is connected to the side of the cylindrical body 1 away from the connecting structure 11. The side wall of the cylindrical body 1 is provided with a connecting ring 13, an inner ring 14 and a mounting ring 15 in a stepped manner along the direction from the connecting structure 11 to the mounting bottom surface 12. The connecting ring 13, the inner ring 14 and the mounting ring 15 are coaxially arranged. The mounting bottom surface 12 is provided with a mounting hole coaxially with respect to the cylindrical body 1.

[0025] The outer periphery of the cylinder 1 is connected to the mounting sleeve 2, and the mounting sleeve 2 is provided with the mounting block 22 facing the mounting bottom surface 12.

[0026] The resonant rod structurally includes a cylindrical body 1 and a mounting base 12. The mounting base 12 has mounting holes coaxial with the cylindrical body 1, allowing the resonant rod to be quickly locked in place. This facilitates both installation and removal of the resonant rod. To improve the overall rigidity of the resonant rod and make its structure and performance more stable, the cylindrical body 1 of the resonant rod is composed of a connecting ring 13, an inner ring 14, and a mounting ring 15 arranged in a stepped pattern. The connecting ring 13 is located at the top of the cylindrical body 1 and has the largest diameter. The inner ring 14 is located in the middle of the cylindrical body 1, and the mounting ring 15 is located at the bottom of the cylindrical body 1 and has the smallest diameter. The three stepped rings interact to strengthen the structure and support each other, thereby improving the overall rigidity of the resonant rod and ensuring good frequency stability.

[0027] A mounting sleeve 2 is provided on the outer periphery of the cylinder 1. The mounting sleeve 2 is fitted on the outer periphery of the cylinder 1. The mounting sleeve 2 can further protect the resonant rod and improve the structural strength of the entire cylinder 1. The end of the connecting ring 13 facing away from the inner ring 14 is connected to the connecting structure 11. The connecting structure 11 can make the connection between the resonant rod and the mounting sleeve 2 more stable. The mounting sleeve 2 is provided with a mounting block 22 facing the mounting bottom surface 12. When it is necessary to quickly fix the resonant rod, the cylinder 1 can be connected to the mounting sleeve 2 through the connecting structure 11. The connection can be quickly and stably completed by passing external bolts through the mounting holes and screwing them into the mounting holes. The above structure can effectively improve the stiffness of the resonant rod and the strength of the entire structure, and can effectively ensure the stability of the entire resonant rod operation.

[0028] See also Figure 2 The inner wall of the mounting sleeve 2 protrudes towards the mounting ring 15 with a stabilizing block 21. The stabilizing block 21 wraps around the mounting ring 15 and is connected to one side of the inner ring 14.

[0029] The bottom surface of the connecting ring 13, the outer wall of the inner ring 14, and the stabilizing block 21 enclose an isolation cavity.

[0030] In this application, in addition to improving the stiffness of the entire resonant rod, the mounting sleeve 2 further protects the resonant rod, thereby stabilizing its operation. The mounting sleeve 2 has a protruding stabilizing block 21, which completely surrounds the mounting ring 15 to ensure the stable installation of the resonant rod. The inner ring 14, which is connected to the isolation cavity between the stabilizing block 21, the mounting sleeve 2, and the inner ring 14, can all help stabilize the resonant rod and reduce external interference to the resonant rod.

[0031] See also Figure 2 The stabilizing block 21 is provided with multiple locking structures 3 facing the mounting ring 15 array, and the mounting ring 15 is provided with multiple mating connection parts relative to the multiple locking structures 3;

[0032] The locking structure 3 includes a locking block 31 and a locking spring 32. The stabilizing block 21 is provided with an adjustment groove relative to the locking spring 32. The locking block 31 is connected to the locking spring 32 and is positioned towards the mating connection part.

[0033] The end face of the stabilizing block 21 facing the mounting ring 15 is provided with multiple locking structures 3. The mounting ring 15 is provided with a mating connection part. The locking structure 3 is a locking block 31 connected to the locking spring 32. The locking spring 32 slides in the adjustment groove in the stabilizing block 21. When the locking block 31 is not subjected to external pressure, it will pass through the stabilizing block 21. When the mounting sleeve 2 and the cylinder 1 are connected, the locking block 31 abuts against the mating connection part under the action of the locking spring 32, which can realize the stable connection between the resonant rod and the mounting sleeve 2. Moreover, the above structure is easy to disassemble and can effectively improve maintenance efficiency.

[0034] See also Figures 1 to 2 The mounting base 12 passes through the mounting ring 15 and is connected to the bottom of the inner ring 14. The bottom wall of the mounting base 12, the inner wall of the mounting ring 15, and the mounting sleeve 2 together form a stable cavity.

[0035] When the cylinder 1 is connected to the mounting sleeve 2, the mounting block 22 passes through the stabilizing cavity and is connected to the mounting bottom surface 12.

[0036] The mounting base 12 is located between the inner ring 14 and the mounting ring 15, and the thickness of the mounting base 12 itself needs to be thicker than that of the cylinder 1. The bottom surface of the inner ring 14 can work together with the mounting base 12 to ensure the stability of the entire mounting base 12 connection. The connection between the mounting base 12 and the bottom surface of the inner ring 14 can also improve the stiffness of the resonant rod. The thicker mounting base 12 can reduce the interference received by the resonant rod and effectively improve the performance of the resonant rod. The mounting base 12 is located at the top of the mounting ring 15, so that a stable cavity is formed between the mounting ring 15 and the mounting sleeve 2, which can further ensure the structural strength of the resonant rod.

[0037] See also Figures 1 to 2 The bottom outer periphery of the mounting sleeve 2 is provided with a mounting part 23 protruding in a direction away from the mounting sleeve 2, and the mounting part 23 is provided with a plurality of mounting holes in an array.

[0038] The outer periphery of the mounting sleeve 2 is provided with a mounting part 23, which can be provided with multiple mounting holes. Through the mounting holes, the entire resonant rod can be easily fixed in a certain place, making the resonant rod easy to install and use, and effectively improving the user experience.

[0039] See also Figures 1 to 2The connecting structure 11 surrounds the end of the mounting sleeve 2 away from the mounting block 22. The connecting structure 11 has a stable connecting portion protruding towards the mounting sleeve 2, and the mounting sleeve 2 has a connecting groove facing the stable connecting portion. The stable connecting portion can be a connecting block protruding from the inner wall of the connecting structure 11, or a connecting position stamped out by the connecting structure 11 towards the mounting sleeve 2. This increases the contact area between the connecting structure 11 and the mounting sleeve 2, further improving the impact resistance of the resonant rod. Through this structure, the stiffness of the resonant rod can be guaranteed, making its performance more stable.

[0040] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application 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. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0041] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A high-stiffness resonant rod, characterized in that, The device includes a cylindrical body and a mounting base. The top of the cylindrical body is provided with a connecting structure. The mounting base is connected to the side of the cylindrical body away from the connecting structure. The sidewall of the cylindrical body is provided with a connecting ring, an inner ring, and a mounting ring in a stepped manner along the direction from the connecting structure to the mounting base. The connecting ring, the inner ring, and the mounting ring are coaxially arranged. The mounting base is provided with a mounting hole coaxially with respect to the cylindrical body. The outer periphery of the cylinder is connected to an installation sleeve, and the installation sleeve is provided with an installation block facing the installation bottom surface.

2. The high-stiffness resonant rod according to claim 1, characterized in that, The inner wall of the mounting sleeve has a stabilizing block protruding towards the mounting ring. The stabilizing block wraps around the mounting ring and is connected to one side of the inner ring. The bottom surface of the connecting ring, the outer wall of the inner ring, and the stabilizing block together form an isolation cavity.

3. A high-stiffness resonant rod according to claim 2, characterized in that, The stabilizing block is provided with multiple locking structures facing the mounting ring array, and the mounting ring is provided with multiple mating connection parts relative to the multiple locking structures; The locking structure includes a locking block and a locking spring. The stabilizing block has an adjustment groove relative to the locking spring. The locking block is connected to the locking spring and is positioned towards the mating connection part.

4. A high-stiffness resonant rod according to claim 1, characterized in that, The mounting bottom surface passes through the mounting ring and is connected to the bottom of the inner ring. The bottom wall of the mounting bottom surface, the inner wall of the mounting ring, and the mounting sleeve together form a stable cavity. When the cylinder is connected to the mounting sleeve, the mounting block passes through the stabilizing cavity and is connected to the mounting bottom surface.

5. A high-stiffness resonant rod according to claim 1, characterized in that, The outer periphery of the bottom of the mounting sleeve has a mounting portion protruding in a direction away from the mounting sleeve, and the mounting portion has a plurality of mounting holes arranged in an array.

6. A high-stiffness resonant rod according to claim 1, characterized in that, The connecting structure is wrapped around the end of the mounting sleeve away from the mounting block. The connecting structure has a stable connecting part protruding towards the mounting sleeve, and the mounting sleeve has a connecting groove towards the stable connecting part.

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