Tester for tachometer

By integrating the protective housing of the tachometer and multimeter, the problem of inconvenience in carrying the separate tachometer and multimeter design in the existing technology is solved, realizing rapid fault diagnosis and accuracy of the portable tachometer tester.

CN223664027UActive Publication Date: 2025-12-12CHINESE PEOPLES LIBERATION ARMY UNIT 91899
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Patent Information

Application Number
CN202520133534.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-21
Publication Date
2025-12-12
Estimated Expiration
2035-01-21

AI Technical Summary

Technical Problem

Existing tachometer testers and multimeters are designed as separate units, which are inconvenient to carry and use, and make it difficult to quickly determine the location of the fault while the aircraft is running.

Method used

A protective housing integrating a tachometer tester and a multimeter was designed, including a protective plate, a protective main board, a protective top cover, and a rotating shaft. The housing allows for tilt angle adjustment of the tachometer tester and enables its connection with the multimeter via a back clip, thus facilitating the combined use of the tachometer and the multimeter.

Benefits of technology

It achieves portable integration of a tachometer and a multimeter, facilitating quick identification of fault locations while the aircraft is running, thus improving operational convenience and accuracy.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a tachometer tester, and relates to the technical field of tachometer testers. The tachometer testing device comprises a tachometer tester and a universal meter arranged on one side of the tachometer tester, and further comprises protection plate bodies arranged on the two sides of the tachometer tester, and protection main boards extending towards the two sides of the bottom of the tachometer tester are fixedly arranged at the bottom of the protection plate bodies; the walking sliding block is fixedly arranged on the side wall of the tachometer tester. The end faces, close to the tachometer tester, of the protection plate body and the protection main plate are provided with sliding grooves allowing the walking sliding block to slide. The connecting block is fixedly arranged on the top of the protective main plate, and a rotating shaft capable of rotating freely is arranged on the inner side of the connecting block. According to the utility model, the side wall of the tachometer tester is fixedly provided with the walking sliding blocks at the two ends, and the sliding blocks can slide in the sliding grooves, so that after the tachometer tester is placed on a plane, the tachometer tester can slide forwards in an inclined manner, the tachometer tester presents an inclined upward angle, and an operator in front can operate and observe a panel of the tachometer tester conveniently.
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Description

Technical Field

[0001] This utility model belongs to the technical field of tachometer testers, and in particular relates to a tachometer tester. Background Technology

[0002] Rotational speed is a physical quantity that is the ratio of the number of revolutions of a rotating body to time. In engineering, it is usually expressed as rotational speed = number of revolutions / time. It is an important parameter for describing the rotational motion of an object. In electrical engineering, it is often necessary to measure the rotational speed of motors and their driven equipment. Portable tachometers are used to measure the rotational speed and linear velocity of motors. There are many types of tachometers. Portable tachometers generally include mechanical centrifugal tachometers and digital electronic tachometers.

[0003] Currently, when the aircraft is running, the fault location can be quickly determined by checking the display on the tachometer test panel. However, it is generally necessary to use a multimeter to check the accuracy of the frequency value. The tester and multimeter are separate designs, which are inconvenient to carry and use. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a tachometer tester that can effectively solve the problems of the existing technology.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a tachometer tester, comprising a tachometer tester and a multimeter mounted on one side of the tachometer tester, and further comprising:

[0007] The main body of the protective plate is set on both sides of the tachometer tester, and the bottom of the main body of the protective plate is fixed with a protective main plate extending to both sides of the bottom of the tachometer tester.

[0008] The sliding slider is fixed to the side wall of the tachometer tester, and the protective plate body and the end face of the protective main plate near the tachometer tester are provided with a groove that allows the sliding slider to slide.

[0009] The connecting block is fixed on the top of the protective main board. The inner side of the connecting block is provided with a freely rotatable rotating shaft. The outer wall of the rotating shaft is provided with a connecting cylinder. The end of the connecting cylinder away from the rotating shaft is connected to a back clip that engages with the back of the multimeter.

[0010] Furthermore, a bottom connecting plate is provided on the surface of the main body of the protective plate, and a protective top cover extending towards the top of the tachometer tester is fixed on the top of the main body of the protective plate.

[0011] Furthermore, the top of the protective cover is equipped with a handle, and the bottom of the two sets of protective main boards are fixed with protective side plates that support the tachometer tester.

[0012] Furthermore, the surface of the connecting cylinder is provided with an insertion hole, and the end face of the adjusting cylinder near the connecting cylinder is fixed with an insertion rib that slides along the groove of the insertion hole.

[0013] Furthermore, the slots of the plug-in blocks are multi-faceted.

[0014] This utility model has the following beneficial effects:

[0015] This invention features a protective outer shell consisting of a protective plate, a protective main plate, and a protective top cover, surrounding the tachometer tester. The tachometer tester is housed within this shell. Slide grooves are incorporated within the protective plate and main plate, allowing sliding blocks at both ends of the tachometer tester's sidewalls to slide along these grooves. When placed on a flat surface, the tachometer tester can slide forward at an upward angle, facilitating operation and observation of the tester's panel by the operator. A back clip is also included for connection with a multimeter, securing the multimeter to one side of the tachometer tester. The adjusting cylinder can be rotated horizontally or vertically via the connecting cylinder and rotating shaft, enabling combined use of the tachometer tester and multimeter. The multimeter's tilt angle can also be adjusted, further enhancing practical operation. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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 these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the present invention;

[0018] Figure 2 This is a side view of the present invention;

[0019] Figure 3 This is a schematic diagram of the structure of the walking slider of this utility model;

[0020] Figure 4 This is an enlarged view of the connecting cylinder portion of this utility model;

[0021] Figure 5 This is a split view of the connecting cylinder and the adjusting cylinder of this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Tachometer tester; 2. Protective plate body; 3. Protective top cover; 4. Protective main plate; 5. Protective side plate; 6. Bottom connecting plate; 7. Multimeter; 8. Connecting block; 9. Rotating shaft; 10. Connecting cylinder; 11. Adjusting cylinder; 12. Insertion rib block; 13. Insertion hole; 14. Back clamp block; 15. Traveling slider. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0025] Please see Figure 1-5 As shown, this utility model is a tachometer tester, including a tachometer tester 1 and a multimeter 7 mounted on one side of the tachometer tester 1. It also includes: a protective plate body 2 mounted on the back of the tachometer tester 1, with a rectangular bottom connecting plate 6 formed in the protective plate body 2. The bottom connecting plate 6 reduces the weight of the entire casing and provides an opening for wiring between the tachometer tester 1 and the adapter cable. A protective top cover 3 extending upwards towards the tachometer tester 1 is fixed to the top of the protective plate body 2. Protective main plates 4 extending downwards towards both sides of the tachometer tester 1 are mounted at the bottom of the protective plate body 2. Protective side plates 5 are fixed between the two sets of protective main plates 4, supporting the bottom of the tachometer tester 1. This design achieves external protection for the tachometer tester 1 through the protective plate body 2, protective top cover 3, protective main plates 4, and protective side plates 5, without affecting the normal operation of the tachometer tester 1. A handle extending diagonally upwards is fixed to the top of the protective top cover 3. The tachometer tester 1 can be moved easily by pulling the protective shell with a handle. A long groove is opened on the end face of the protective plate body 2 and the protective main plate 4 near the tachometer tester 1. A sliding block 15 that can move along the groove is fixed on the side wall of the tachometer tester 1. The sliding block 15 allows the tachometer tester 1 to be adjusted in angle inside the protective shell, so that the tachometer tester 1, which was originally in a vertical position, can be moved to a tilted position at the front end of the tachometer tester 1. This makes it convenient to adjust the operating angle of the tachometer tester 1 after it is placed on a flat surface, making it convenient to observe the value on the surface of the tachometer tester 1 and operate the tachometer tester 1. In order to fix the angle of the tachometer tester 1, a screw can be threadedly connected to the front end of the protective main plate 4, and the front end of the screw extends into the groove inside the protective main plate 4. By the front end of the screw pressing against the sliding block 15, the tachometer tester 1 can keep the value in contact with the surface of the protective plate body 2, thereby improving stability.

[0026] A connecting block 8 extending upward is fixed to the top of the tachometer tester 1, and a rotating shaft 9 is rotatably connected to the inside of the connecting block 8. A connecting cylinder 10 extending outward is fixed to the outside of the rotating shaft 9. A multi-faceted insertion hole 13 is opened at the front end of the connecting cylinder 10, and a plugging prism 12 is slidably connected in the insertion hole 13. By sliding the plugging prism 12 in the groove of the insertion hole 13, the relative distance between the adjusting cylinder 11 and the connecting cylinder 10 can be adjusted. By adjusting the angle of the plugging prism 12 and inserting it into the insertion hole 13, the relative angle between the adjusting cylinder 11 and the connecting cylinder 10 can be changed. A back clamping block 14 is fixed to the end of the adjusting cylinder 11, and a groove for engaging with the back clamping block 14 is provided on the back of the multimeter 7. The multimeter 7 can be inserted into the back clamping block 14, so that the multimeter 7 can be stably placed on one side of the tachometer tester 1. The tachometer tester 1 and the multimeter 7 can be used simultaneously.

[0027] The above are merely preferred embodiments of the present utility model and do not limit the present utility model. Any modifications, equivalent substitutions, or improvements made to the technical solutions described in the foregoing embodiments, or to some of the technical features, shall fall within the protection scope of the present utility model.

Claims

1. A tachometer tester, comprising a tachometer tester (1) and a multimeter (7) disposed on one side of the tachometer tester (1), characterized in that, Also includes: The protective plate body (2) is set on both sides of the tachometer tester (1), and the bottom of the protective plate body (2) is fixed with a protective main plate (4) extending to both sides of the bottom of the tachometer tester (1); The sliding slider (15) is fixed on the side wall of the tachometer tester (1). The protective plate body (2) and the protective main plate (4) are provided with a groove on the end face of the tachometer tester (1) that allows the sliding slider (15) to slide. A connecting block (8) is fixed on the top of the protective main board (4). The inner side of the connecting block (8) is provided with a freely rotatable rotating shaft (9). A connecting cylinder (10) is fixed on the outer wall of the rotating shaft (9). A back clip (14) that is snapped into the back of the multimeter (7) is connected to the end of the connecting cylinder (10) away from the rotating shaft (9).

2. The tachometer tester according to claim 1, characterized in that, The surface of the protective plate body (2) is provided with a bottom connecting plate (6), and the top of the protective plate body (2) is fixed with a protective top cover (3) extending to the top of the tachometer tester (1).

3. The tachometer tester according to claim 1, characterized in that, The top of the protective cover (3) is provided with a handle, and the bottom of the two sets of protective main boards (4) are fixed with protective side plates (5) that support the tachometer tester (1).

4. The tachometer tester according to claim 1, characterized in that, The surface of the connecting cylinder (10) is provided with an insertion hole (13), and the end face of the adjusting cylinder (11) near the connecting cylinder (10) is fixed with an insertion rib (12) that slides in the groove of the insertion hole (13).

5. A tachometer tester according to claim 1, characterized in that, The slot of the plug-in prism block (12) is multi-faceted.