Speed sensor

Abstract

The utility model relates to a speed sensor, which comprises an outer shell, a mounting plate on the outer shell and a connecting terminal on the outer shell, one end of the mounting plate is provided with a mounting hole, the lower end face of the mounting plate is integrally provided with a positioning column, the lower end face of the mounting hole is provided with a raised circular ring step, and the lower end face of the mounting hole is provided with a positioning pin. The annular step and the mounting hole are coaxially arranged, and a plurality of protruding points are evenly distributed on the end face of the annular step. The positioning column integrally formed on the lower end face of the mounting plate provides a clear and accurate positioning reference for the sensor. In the installation process, the positioning columns can be tightly matched with the corresponding positioning holes in the equipment, it is ensured that the sensor can be rapidly and accurately aligned with the installation position, installation deflection or angle deviation caused by manual operation errors is effectively avoided, and the installation precision of the speed sensor is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sensors, in particular to a speed sensor. Background Art

[0002] In many fields such as modern industrial automation, traffic monitoring, aerospace, and mechanical equipment, speed sensors, as a key detection element, are widely used to accurately measure the speed or rotation speed of objects, provide real-time and accurate speed information for control systems, and have a vital impact on equipment operation efficiency, safety, and reliability. However, with the advancement of technology and the continuous improvement of application needs, higher requirements are placed on the installation convenience, positioning accuracy, and long-term working stability of speed sensors.

[0003] The traditional speed sensor design usually has a simple installation structure, such as using a universal threaded interface, snap-on connection, or adhesive fixation for installation. Although these methods meet the basic installation requirements to a certain extent, there are still some problems that need to be solved in practical applications:

[0004] Insufficient installation positioning accuracy: The installation surface of existing speed sensors often lacks precise positioning structures, and relies solely on the operator's experience and visual alignment, which can easily lead to sensor installation position deviation or angle deviation, thereby affecting the accuracy of the measurement results. Especially in situations where high accuracy is required, such as precision manufacturing and micro-displacement monitoring, this positioning error may become a key factor restricting system performance.

[0005] Poor installation stability: The existing installation method may be loose or fall off when used for a long time or facing environmental factors such as vibration and impact, resulting in unstable working state of the sensor or even damage to the equipment. The lack of effective anti-loosening and anti-vibration mechanisms makes the reliable operation of the sensor under complex working conditions challenging.

[0006] Low installation efficiency: The traditional manual alignment installation process is time-consuming and labor-intensive. Especially when installing in large quantities or in a small space, the installation efficiency is significantly reduced, which increases labor costs and equipment downtime, and is not conducive to improving overall production efficiency.

[0007] In view of the above problems, the existing speed sensor installation technology can no longer fully adapt to the increasingly stringent application scenarios and user needs, and there is an urgent need for a new type of speed sensor that can achieve accurate, stable and efficient installation to improve the overall performance and operational reliability of the system. The utility model is aimed at the deficiencies in the above background technology and proposes a speed sensor with an innovative installation structure. Utility Model Content

[0008] In view of the deficiencies in the background technology, the utility model provides a speed sensor.

[0009] The technical solution adopted by the utility model is: a speed sensor, comprising an outer shell, a mounting plate on the outer shell and a connecting terminal on the outer shell, a mounting hole is provided on one end of the mounting plate, a positioning column is integrally formed on the lower end surface of the mounting plate, a raised annular step is provided on the lower end surface of the mounting hole, the annular step is coaxially arranged with the mounting hole, and a plurality of convex points are evenly distributed on the end surface of the annular step.

[0010] Furthermore, the protrusion is a frustum-shaped structure.

[0011] Furthermore, the positioning column is a frustum-shaped structure.

[0012] Furthermore, a plurality of conical ridges are evenly spaced on the outer wall of the positioning column.

[0013] Furthermore, the outer shell is provided with sealing grooves at equal intervals on one end of the mounting plate, and a sealing ring is installed in each sealing groove.

[0014] Furthermore, a metal sleeve is provided in the mounting hole, and the metal sleeve protrudes from the surface of the mounting plate.

[0015] Furthermore, the annular step is 1-3 mm higher than the surface of the mounting plate.

[0016] The beneficial effects of the utility model are:

[0017] 1. Significantly improve the installation positioning accuracy: The positioning column integrally formed on the lower end of the mounting plate provides a clear and accurate positioning reference for the sensor. During the installation process, the positioning column can be closely matched with the corresponding positioning hole on the equipment to ensure that the sensor can quickly and accurately align with the installation position, effectively avoiding installation deflection or angle deviation caused by human operation errors, significantly improving the installation accuracy of the speed sensor, thereby ensuring the accuracy of the measurement results, and is particularly suitable for application scenarios such as precision manufacturing and micro-displacement monitoring that require extremely high installation accuracy.

[0018] 2. Significantly enhance the installation stability: The circular step design on the lower end face of the mounting hole not only increases the installation contact area and improves the mechanical bite force between the sensor and the mounting surface, but also effectively prevents the axial movement of the sensor during the installation process through the step structure. At the same time, the evenly distributed convex points on the end face of the circular step further increase the friction resistance and play a good anti-loosening role. This double insurance design enables the sensor to maintain a stable connection when facing complex working conditions such as long-term vibration and impact, significantly enhances the installation stability, ensures that the sensor can work continuously and reliably in various environments, and reduces the risk of equipment failure.

[0019] 3. Significantly improve installation efficiency: Since the speed sensor has a clear and intuitive positioning structure, installers can quickly complete accurate installation without relying on complex tools or time-consuming manual adjustments, greatly reducing installation time and labor costs. Especially in large-scale deployment or small space operations, the efficient and simple installation method greatly improves work efficiency, shortens equipment downtime, and is conducive to improving overall production efficiency.

[0020] In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages.

[0021] The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the utility model.

[0023] Figure 2 It is another perspective schematic diagram of the present invention.

[0024] Figure 3 for Figure 2 Enlarged schematic diagram at point A in the middle.

[0025] Figure 1-3 In: 1. Outer shell; 2. Mounting plate; 3. Connecting terminal; 4. Mounting hole; 5. Positioning column; 6. Circular step; 7. Bump; 8. Conical ridge; 9. Sealing groove; 10. Sealing ring; 11. Metal sleeve. DETAILED DESCRIPTION

[0026] 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 of 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.

[0027] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0028] The utility model provides a speed sensor.

[0029] In this embodiment, refer to Figure 1-3The speed sensor comprises an outer shell 1, a mounting plate 2 on the outer shell and a connecting terminal 3 on the outer shell, a mounting hole 4 is provided on one end of the mounting plate, a positioning column 5 is integrally formed on the lower end surface of the mounting plate, a raised circular step 6 is provided on the lower end surface of the mounting hole, the circular step is coaxially arranged with the mounting hole, and a plurality of convex points 7 are evenly distributed on the end surface of the circular step.

[0030] The speed sensor of the present application achieves precise and stable installation by integrally forming a positioning column on the lower end face of the mounting plate and providing a raised circular step on the lower end face of the mounting hole. The positioning column provides a clear positioning reference for the sensor, ensuring the precise alignment of the sensor and the equipment installation position, avoiding installation deflection or angle deviation, and significantly improving measurement accuracy. The circular step not only increases the installation contact area and improves the connection stability, but the raised points on the end face also increase the friction resistance, effectively preventing loosening after installation and ensuring that the sensor maintains a stable connection under complex working conditions such as vibration and impact.

[0031] Specifically, the protrusion is a frustum-shaped structure; and the positioning column is a frustum-shaped structure.

[0032] First, during installation, the frustum-shaped locating column can guide and adapt to the equipment locating hole with its gradually shrinking shape, achieving smooth and precise insertion and avoiding assembly difficulties caused by dimensional tolerances; secondly, the frustum-shaped locating column has good self-guiding and self-centering functions, and can quickly and accurately align even under limited operating line of sight conditions, significantly improving installation efficiency; finally, this structure enhances the contact area and fit tightness between the locating column and the locating hole on the mounting surface, effectively preventing relative rotation after installation and greatly enhancing installation stability.

[0033] Specifically, a plurality of conical ridges 8 are provided at equal intervals on the outer wall of the positioning column.

[0034] The tapered ridges arranged at equal intervals on the outer wall of the positioning column further enhance the mechanical interlocking effect between the positioning column and the positioning hole, effectively preventing the sensor from loosening due to factors such as vibration during use.

[0035] Specifically, the outer shell is provided with sealing grooves 9 at equal intervals on one end of the mounting plate, and a sealing ring 10 is installed in each sealing groove.

[0036] By providing a plurality of sealing rings, even if one sealing ring fails, another sealing ring can still play an effective sealing role, thereby enhancing the connection sealing performance of the speed sensor.

[0037] Specifically, a metal sleeve 11 is provided in the mounting hole, the metal sleeve protrudes from the surface of the mounting plate, and the annular step is 1-3 mm higher than the surface of the mounting plate.

[0038] The metal sleeve 11 provided in the mounting hole improves the wear resistance and corrosion resistance of the mounting hole and prolongs the service life of the sensor. The rigidity of the metal sleeve is better than that of the mounting plate material, so that the mounting hole has better load-bearing capacity and anti-deformation ability, ensuring the structural integrity and connection reliability of the sensor under high-strength installation conditions. The design of the metal sleeve protruding from the surface of the mounting plate is conducive to close cooperation with other equipment connectors, improving the connection strength and stability, while avoiding direct wear on the mounting plate and protecting the main structure of the sensor.

[0039] Technical personnel should note: Although the utility model has been described according to the above specific implementation methods, the concept of the utility model is not limited to this utility model. Any modification using the concept of the utility model will be included in the scope of protection of this patent right.

Claims

1. A speed sensor, comprising an outer shell, a mounting plate on the outer shell, and a connecting terminal on the outer shell, wherein one end of the mounting plate is provided with a mounting hole, characterized in that: A positioning column is integrally formed on the lower end surface of the mounting plate, and a raised annular step is provided on the lower end surface of the mounting hole. The annular step is coaxially arranged with the mounting hole, and a plurality of convex points are evenly distributed on the end surface of the annular step.

2. The speed sensor according to claim 1, characterized in that: The convex point is a frustum-shaped structure.

3. The speed sensor according to claim 1, characterized in that: The positioning column is a frustum-shaped structure.

4. The speed sensor according to claim 3, characterized in that: A plurality of conical ridges are arranged at equal intervals on the outer wall of the positioning column.

5. The speed sensor according to claim 1, characterized in that: The outer shell is provided with sealing grooves at equal intervals on one end of the mounting plate, and a sealing ring is installed in each sealing groove.

6. The speed sensor according to claim 1, characterized in that: A metal sleeve is arranged in the mounting hole, and the metal sleeve protrudes from the surface of the mounting plate.

7. The speed sensor according to claim 1, characterized in that: The circular step is 1-3 mm higher than the surface of the mounting plate.

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