Handheld vibration instrument with shockproof structure

Abstract

The utility model relates to the technical field of vibration measurement, concretely relates to a handheld vibration appearance with shockproof structure, and aims at solving the problem of inaccurate measurement due to hand shaking and internal damage due to accidental impact in prior art. The utility model discloses a shell and internal sensor module, circuit mainboard and power. Its core lies in, the sensor module is suspended and installed in the shell inside through an internal shockproof support, and first grade damping element is equipped between the support and shell inner wall, makes sensor module and shell to be in the isolated state of non rigid contact, simultaneously, the measuring end of sensor module is coupled with the measuring opening on the shell through a measuring head. The utility model suspends and isolates through the inside design, effectively filters out the interference introduced by handheld operation, and the drop impact is relieved significantly, thereby reaches the dual purpose of improving the measurement precision and equipment durability.

Description

Technical Field

[0001] This utility model relates to the field of vibration measurement technology, specifically a handheld vibration meter with a shockproof structure. Background Technology

[0002] Handheld vibration meters are widely used in the condition monitoring and fault diagnosis of mechanical equipment. They measure the vibration parameters of the object being measured through built-in vibration sensors (such as accelerometers). In actual use, the operator holds the instrument and presses its probe or measuring surface firmly against the surface of the object being measured.

[0003] However, existing handheld vibration meters have the following problems: First, slight hand tremors or unstable grip by the operator can generate additional low-frequency interference signals. These signals are collected by the vibration sensor, affecting the accuracy of the measurement results, especially when measuring low-frequency or micro-amplitude vibrations. Second, if the instrument is accidentally dropped or bumped during transport or use, the huge impact force can be directly transmitted to the core sensor and internal precision circuitry, causing sensor damage, cracked circuit board solder joints, or component failure, reducing the instrument's reliability and lifespan.

[0004] Therefore, there is an urgent need for a handheld vibration meter that can effectively isolate handheld interference and buffer external impacts. Summary of the Invention

[0005] In view of the shortcomings of the prior art, this utility model provides a handheld vibrator with a shockproof structure, which overcomes the shortcomings of the prior art and solves the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a handheld vibrator with a shockproof structure, comprising a shell, a sensor module, a circuit board and a power supply disposed within the shell, wherein the shell comprises a front shell and a rear shell that are interlocked with each other; The sensor module is suspended and installed in the internal cavity of the housing via an internal shock-absorbing bracket. At least one first-stage shock-absorbing element is provided between the internal shock-absorbing bracket and the inner wall of the outer shell; The measuring end of the sensor module is coupled to a measuring opening on the front housing via a measuring head.

[0007] As a preferred technical solution of this utility model, the internal shock-absorbing bracket is a cage-type or frame-type structure, which is connected to the inner wall of the outer shell through the first-stage shock-absorbing element, so that the sensor module and the outer shell are in a non-rigid contact state.

[0008] As a preferred embodiment of this utility model, the first-stage shock-absorbing element is a silicone column, a rubber pad, or a spring.

[0009] As a preferred embodiment of this utility model, the outer surface of the outer shell, especially its corners and / or gripping areas, is covered with an external shock-absorbing rubber layer.

[0010] As a preferred embodiment of this invention, the circuit board is fixed to the inside of the housing by at least one second-stage shock-absorbing element.

[0011] As a preferred embodiment of this invention, the second-stage shock-absorbing element is a silicone pad.

[0012] As a preferred embodiment of this utility model, a protective sleeve is provided at the measuring opening of the front shell, and a buffer pad is provided on the inner side of the protective sleeve.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. The sensor module is isolated from the housing by the internal anti-vibration bracket and the first-stage shock absorption element, which effectively filters out the interference vibration transmitted to the housing by the operator's hand tremors, ensuring that the signal collected by the sensor comes purely from the object being measured, and significantly improving the accuracy and reliability of the measurement data.

[0014] 2. The dual shockproof design (internal shockproof bracket and external shockproof rubber coating) works together. When the instrument is accidentally dropped or impacted, the external rubber coating absorbs and disperses most of the initial impact energy. The remaining impact energy is further buffered by the internal first-stage shock-absorbing element, which greatly reduces the impact force transmitted to the core sensor module and circuit board, effectively protecting the internal precision components.

[0015] 3. The entire shockproof structure is ingeniously designed, without significantly increasing the size of the instrument, thus maintaining the portability of a handheld instrument.

[0016] 4. Through multi-level buffer protection, the probability of instrument damage due to daily use and unexpected situations is greatly reduced, extending the service life of the instrument and reducing maintenance costs. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the handheld vibration meter of this utility model; Figure 2 This is a cross-sectional structural diagram of the handheld vibration meter of this utility model.

[0018] In the diagram: 1. Outer shell; 11. Front shell; 12. Rear shell; 13. Measuring opening; 2. Sensor module; 3. Circuit board; 4. Power supply; 5. Internal shockproof bracket; 6. First-stage shock-absorbing element; 7. Measuring head; 8. External shockproof rubber coating; 9. Second-stage shock-absorbing element; 10. Protective cover. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-2 A handheld vibrator with a shock-absorbing structure includes an outer shell 1 formed by the snap-fitting of a front shell 11 and a rear shell 12. The outer shell 1 is entirely covered with an external shock-absorbing rubber layer 8 made of soft rubber or TPU material, which is thickened, especially at the corners and grip areas of the instrument, to provide initial impact protection and a comfortable grip.

[0021] Inside the outer casing 1, the core sensor module 2 (such as a MEMS accelerometer or a piezoelectric accelerometer) is mounted on a cage-like internal shock-absorbing bracket 5. This internal shock-absorbing bracket 5 is connected to the inner wall of the outer casing 1 via first-stage damping elements 6 (cylindrical silicone pillars in this embodiment) at its four corners. This suspended mounting method eliminates the rigid connection between the sensor module 2 and its internal shock-absorbing bracket 5 and the outer casing 1, thus creating effective vibration isolation.

[0022] The sensor module 2 is connected to a measuring head 7 at its measuring end. When measuring, the operator presses the instrument against the object being measured, and the measuring head 7 ensures that the measuring surface is in full contact with the object while maintaining good vibration transmission characteristics.

[0023] The circuit board 3 and the power supply 4 are fixed to the internal shock-absorbing bracket 5 by screws and a second-stage shock-absorbing element 9 (a silicone pad in this embodiment). This fixing method ensures the stability of the circuit connection and also buffers the high-frequency vibrations or impacts that may be transmitted to the bracket through the silicone pad.

[0024] A protective sleeve 10 is fitted onto the measuring opening 13 of the front housing 11. The inner side of the protective sleeve 10 is covered with a foam cushioning pad to protect the measuring head 7 from contamination and damage when not in a measuring state.

[0025] Working principle: During measurement, the protective cover 10 is opened, and the measuring head 7 of the instrument is pressed firmly against the surface of the object being measured. The vibration of the object being measured is effectively transmitted to the isolated sensor module 2 through the measuring head 7. At the same time, the operator's hand tremors are transmitted through the outer shell 1, but are effectively attenuated by the first-stage shock-absorbing element 6, with only a very small portion reaching the sensor module 2, thus ensuring the purity of the measurement signal. When the instrument is dropped, the external shock-absorbing rubber layer 8 absorbs the initial impact energy, and the remaining impact force is transmitted to the interior through the outer shell 1, where it is further buffered by the first-stage shock-absorbing element 6 and the second-stage shock-absorbing element 9, minimizing the impact force on the sensor module 2 and the circuit board 3.

[0026] Finally, it should be noted that in the description of this utility model, the terms "vertical," "upper," "lower," "horizontal," etc., 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 utility model 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, they should not be construed as limitations on this utility model.

[0027] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A handheld vibrator with a shockproof structure, comprising a housing (1), a sensor module (2), a circuit board (3), and a power supply (4) disposed within the housing (1), wherein the housing (1) comprises a front shell (11) and a rear shell (12) that are interlocked, characterized in that: The sensor module (2) is suspended in the internal cavity of the outer shell (1) by an internal shockproof bracket (5); At least one first-stage shock-absorbing element (6) is provided between the internal shock-absorbing bracket (5) and the inner wall of the outer shell (1). The measuring end of the sensor module (2) is coupled to the measuring opening (13) provided on the front shell (11) through a measuring head (7).

2. A handheld vibrator with a shock-resistant structure according to claim 1, characterized in that: The internal shock-absorbing bracket (5) is a cage-type or frame-type structure, which is connected to the inner wall of the outer shell (1) through the first-stage shock-absorbing element (6), so that the sensor module (2) and the outer shell (1) are in a non-rigid contact state.

3. A handheld vibrator with a shock-resistant structure according to claim 1, characterized in that: The first-stage damping element (6) is a silicone pillar, a rubber pad, or a spring.

4. A handheld vibrator with a shock-resistant structure according to claim 1, characterized in that: The outer shell (1) is covered with an external shock-absorbing rubber layer (8).

5. A handheld vibrator with a shock-resistant structure according to claim 4, characterized in that: The external shock-absorbing rubber layer (8) is thickened at the corners and / or gripping parts of the outer shell (1).

6. A handheld vibrator with a shock-resistant structure according to claim 1, characterized in that: The circuit board (3) is fixed inside the housing (1) by at least one second-stage shock-absorbing element (9).

7. A handheld vibrator with a shock-resistant structure according to claim 6, characterized in that: The second-stage damping element (9) is a silicone pad.

8. A handheld vibrator with a shock-resistant structure according to claim 1, characterized in that: A protective sleeve (10) is provided at the measuring opening (13) of the front shell (11).

9. A handheld vibrator with a shock-resistant structure according to claim 8, characterized in that: The inner side of the protective sleeve (10) is provided with a cushioning pad.

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