Anti-drop universal meter
By designing a protective cover on the multimeter, using curved rubber edging, rubber balls, curved elastic rubber plates, and bow-shaped rubber plates, the problem of protecting the multimeter from drops is solved, achieving all-round drop protection and improving the durability of the equipment.
Patent Information
- Application Number
- CN202522542652.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-01
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-12-01
AI Technical Summary
Existing multimeters lack specific drop protection designs, leading to screen breakage, internal circuit solder joint detachment, and measurement accuracy drift. Furthermore, existing protective covers are easily punctured, offering limited protection.
A protective cover was designed, including an arc-shaped rubber edging, a rubber ball, an upwardly convex curved elastic rubber plate, and a detachable bow-shaped rubber plate. These components provide all-around protection for the multimeter and cushion the impact of drops.
It achieves full-scenario drop protection for multimeters, reducing the risk of damage from drops and improving protection and durability.
Smart Images

Figure CN223727888U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to multimeter technical field especially relates to a kind of anti-falling multimeter. BACKGROUND
[0002] As the core tool in the field of electronic measurement, multimeter is widely used in industrial maintenance, electronic research and development, equipment maintenance and other scenes. In actual use process, multimeter operating condition is complex or in mobile environment, it is inevitable to fall, collide and other situations.
[0003] The protective design of existing multimeter is mostly concentrated on thickening shell material or simple corner smoothing treatment, lacks targeted anti-falling structure design, and its shell is mostly integrally formed by hard plastic, impact force is directly transmitted to internal precision measuring element when falling, which can easily cause display screen fragmentation, internal circuit soldering point falling off, measurement accuracy drift and other faults. Part of multimeter with basic protective sleeve can only buffer impact in single direction, cannot comprehensively cover multidirectional falling scenes such as corner, front and back, and protective effect is limited. In addition, part of protective sleeve with full rubber structure in prior art is sleeved on multimeter, but protective sleeve with full rubber structure is easily punctured by sharp component, and protective force is limited.
[0004] Therefore, it is necessary to provide a new anti-falling multimeter to solve the above technical problems. CONTENT OF UTILITY MODEL
[0005] To solve the above technical problems, the utility model provides an anti-falling multimeter.
[0006] The anti-falling multimeter provided by the utility model comprises a multimeter body, a protective cover sleeved on the multimeter body and used for protecting the multimeter body, and an insertion port for inserting the multimeter body is formed at one end of the protective cover, and arc-shaped rubber edges are arranged at four corners of the protective cover.
[0007] An integrally-formed inner extension edge plate is arranged on the protective cover, and a curved elastic rubber plate in upper convex structure is arranged on each inner extension edge plate.
[0008] A plurality of detachable bow-shaped rubber plates are arranged on the arc-shaped rubber edges on both sides of the insertion port.
[0009] A plurality of semicircular grooves are formed in the bottom of the protective cover, and a rubber ball is fixedly embedded in each semicircular groove.
[0010] Preferably, T-shaped sliding grooves are formed in the outer walls on both sides of the multimeter body, and T-shaped guide plates matched with the T-shaped sliding grooves are fixedly embedded in the inner walls on both sides of the protective cover.
[0011] Preferably, the outer wall of the protective cover near the insertion port has a threaded through hole, and a threaded fastening screw for locking the multimeter body is inserted into the threaded through hole.
[0012] Preferably, the protective cover has cutouts at all four corners, the arc-shaped rubber edging is fixedly fitted into the cutouts, and the arc-shaped rubber edging extends to both sides of the protective cover.
[0013] Preferably, cavities are provided on the arc-shaped rubber edging on both sides of the insertion port, and multiple T-shaped grooves are provided on the arc-shaped rubber edging on both sides of the insertion port at equal intervals.
[0014] Preferably, both ends of the bow-shaped rubber plate are fixedly fitted with T-shaped plugs, and the T-shaped plugs on both sides of the bow-shaped rubber plate are respectively inserted into the T-shaped grooves opened in the arc-shaped rubber edging.
[0015] Preferably, both ends of the curved elastic rubber sheet are fixedly connected to rubber fitting seats, and the rubber fitting seats are fixedly installed on the inner extension edge plate.
[0016] Preferably, an elastic gasket is fixedly installed on the inner bottom wall of the protective cover.
[0017] Compared with related technologies, the shockproof multimeter provided by this utility model has the following advantages:
[0018] This utility model features arc-shaped rubber edging at the four corners of the protective cover, which can specifically resist the impact force when the corners are dropped. The rubber ball at the bottom can buffer the impact of the back falling to the ground. The convex curved elastic rubber plate can protect the operating panel, and the bow-shaped rubber plate can effectively protect the multimeter body at the insertion port, thereby achieving full-scene anti-drop coverage for the multimeter body. Attached Figure Description
[0019] Figure 1 One of the structural schematic diagrams of a preferred embodiment of the shockproof multimeter provided by this utility model;
[0020] Figure 2 A second structural schematic diagram of a preferred embodiment of the shockproof multimeter provided by this utility model;
[0021] Figure 3 for Figure 1 The diagram shows the structure of the multimeter body.
[0022] Figure 4 for Figure 1 The diagram shows the structure of the protective outer cover;
[0023] Figure 5 for Figure 2Structure diagram of the protective cover shown in the figure;
[0024] Figure 6 For Figure 5 Structure diagram of the cutout structure of the protective cover shown in the figure;
[0025] Figure 7 For Figure 6 Structure diagram of the rubber ball distribution at the bottom of the protective cover shown in the figure;
[0026] Figure 8 For Figure 1 Structure diagram of the arc-shaped rubber plate shown in the figure.
[0027] In the figure, 1 is a multimeter body; 1a is a T-shaped sliding groove; 2 is a protective cover; 2a is an insertion port; 2b is a cutout; 21 is an inner extension edge plate; 22 is a T-shaped guide plate; 3 is an arc-shaped rubber cover; 3a is a cut cavity; 3b is a T-shaped groove; 4 is a curved elastic rubber plate; 41 is a rubber embedding seat; 5 is an arc-shaped rubber plate; 51 is a T-shaped plug; 6 is a rubber ball; 7 is an elastic gasket; and 8 is a fastening screw. DETAILED DESCRIPTION
[0028] In order to make the purpose, technical scheme and advantages of the utility model clearer and more apparent, the utility model is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and do not limit the utility model.
[0029] The specific implementation of the utility model is described in detail below in combination with specific examples.
[0030] Please refer to Figures 1 to 8 The utility model embodiment provides a kind of anti-drop multimeter, the anti-drop multimeter includes multimeter body 1 and protective cover 2.
[0031] In the embodiment of the utility model, please refer to Figures 1 to 8 Multimeter body 1 is provided with protective cover 2 for protecting multimeter body 1, and one end of protective cover 2 is provided with insertion port 2a for inserting multimeter body 1, and the outer wall of both sides of multimeter body 1 is provided with T-shaped sliding groove 1a, the inner wall of both sides of protective cover 2 is fixedly embedded with T-shaped guide plate 22 matched with T-shaped sliding groove 1a, the outer wall of one side of protective cover 2 close to insertion port 2a is provided with threaded hole, and threaded hole is inserted with fastening screw 8 for locking multimeter body 1.
[0032] It needs to be explained that the T-shaped sliding groove 1a on the multimeter body 1 is corresponded with the T-shaped guide plate 22 in the protective cover 2, then is inserted into the protective cover 2 along the insertion port 2a, when the bottom shell of the multimeter body 1 abuts against the cover wall in the protective cover 2, the rotating fastening screw 8 drives the fastening screw 8 to press the multimeter body 1, so that the installation of the multimeter body 1 in the protective cover 2 is realized, and the multimeter body 1 is prevented from sliding out of the protective cover 2, when disassembling, the fastening screw 8 is loosened, then the multimeter body 1 is slid out of the protective cover 2, which is simple and convenient to operate.
[0033] In the embodiment, the rod head of the fastening screw 8 is sleeved with a rubber sleeve, so that the shell of the multimeter body 1 is prevented from being damaged by the rod head of the fastening screw 8.
[0034] Further, the inner bottom wall of the protective cover 2 is fixedly installed with the elastic gasket 7, so that the impact force between the protective cover 2 and the multimeter body 1 is reduced.
[0035] In the embodiment of the utility model, please refer to Figures 1 to 8 The four corners of the protective cover 2 are provided with arc-shaped rubber edge coverings 3, specifically, the four corners of the protective cover 2 are provided with cutouts 2b, the arc-shaped rubber edge coverings 3 are fixedly embedded in the cutouts 2b, and the arc-shaped rubber edge coverings 3 extend to both sides of the protective cover 2, and the bottom of the protective cover 2 is provided with a plurality of uniformly distributed semicircular grooves, and each semicircular groove is fixedly embedded with a rubber ball 6.
[0036] The protective cover 2 is provided with integrally-formed inner extension edge plates 21, each of the inner extension edge plates 21 is installed with a curved elastic rubber plate 4 in a convex structure, specifically, the two side plate heads of the curved elastic rubber plate 4 are fixedly connected with rubber embedding seats 41, and the rubber embedding seats 41 are fixedly installed on the inner extension edge plate 21.
[0037] It needs to be explained that when the protective cover 2 with the multimeter body 1 inside falls to the ground, if the corner of the protective cover 2 contacts the ground, the arc-shaped rubber edge covering 3 can protect the corner of the protective cover 2 from being damaged, if the back of the protective cover 2 falls to the ground, the rubber ball 6 can buffer and reduce the impact on the multimeter body 1 when falling to the ground, and when the protective cover 2 exposes the multimeter body 1 operating panel and falls to the ground, the curved elastic rubber plate 4 in a convex structure can be in contact with the ground in advance, then deforms to protect the multimeter body 1 from the impact when falling.
[0038] In the embodiment, the arc-shaped rubber edge coverings 3 on both sides of the insertion port 2a are provided with cut cavities 3a, so that the arc-shaped rubber edge coverings 3 on both sides of the insertion port 2a are prevented from hindering the insertion of the multimeter body 1 into the protective cover 2.
[0039] In the embodiment of the utility model, please refer toFigures 1 to 8 A plurality of detachable arc-shaped rubber plates 5 are arranged on the arc-shaped rubber edges 3 on both sides of the insertion port 2a, specifically, a plurality of T-shaped grooves 3b are arranged on the arc-shaped rubber edges 3 on both sides of the insertion port 2a, and the two ends of the arc-shaped rubber plate 5 are fixedly arranged with T-shaped plugs 51, and the T-shaped plugs 51 on both sides of the arc-shaped rubber plate 5 are inserted into the T-shaped grooves 3b of the arc-shaped rubber edges 3.
[0040] It should be noted that when the multimeter body 1 is installed in the protective cover 2, the arc-shaped rubber plate 5 is pressed together to make the arc-shaped rubber plate 5 more protruding, then the other side T-shaped plug 51 of the arc-shaped rubber plate 5 is inserted into the T-shaped groove 3b of the arc-shaped rubber edge 3 on one side, and then the other side T-shaped plug 51 of the arc-shaped rubber plate 5 is inserted into the T-shaped groove 3b of the arc-shaped rubber edge 3 on the other side, and then the arc-shaped rubber plate 5 is loosened, at this time the arc-shaped rubber plate 5 is elastically reset, and then the arc-shaped rubber plate 5 is stably installed on the arc-shaped rubber edges 3 on both sides of the insertion port 2a through the T-shaped plugs 51 on both sides, so that when the insertion port 2a is placed on the ground, the arc-shaped rubber plate 5 as a buffer structure can effectively protect the multimeter body 1 at the insertion port 2a.
[0041] Among them, since part of the multimeter body 1 is provided with a jack on the meter head, the number of arc-shaped rubber plates 5 installed is determined according to actual needs, for example, the arc-shaped rubber plate 5 corresponding to the jack position on the meter head can be selected not to be installed.
[0042] Therefore, the arc-shaped rubber edges 3 are arranged at the four corners of the protective cover 2, which can resist the impact force when the corners fall, the rubber ball 6 at the bottom can buffer the impact of falling on the back, the upper convex curved elastic rubber plate 4 can protect the operation plate, and the arc-shaped rubber plate 5 can effectively protect the multimeter body 1 at the insertion port 2a, thereby realizing full-scene drop protection of the multimeter body 1, and the arrangement of the arc-shaped rubber edges 3, the curved elastic rubber plate 4, the arc-shaped rubber plate 5 and the rubber ball 6 can greatly reduce the probability of contact between the protective cover 2 and the ground, thereby reducing the risk of cracking of the protective cover 2 due to impact when the multimeter body 1 falls.
[0043] In addition, the curved elastic rubber plate 4 and the arc-shaped rubber plate 5 can be made of a modified nitrile rubber and a carbon fiber reinforced layer composite structure to improve the elastic recovery rate and durability, and a piece of curved copper sheet can be embedded in the curved elastic rubber plate 4 and the arc-shaped rubber plate 5 to further improve the elastic recovery ability of the curved elastic rubber plate 4 and the arc-shaped rubber plate 5.
[0044] Among them, the multimeter body 1 in the application is an existing device in the prior art, which will not be described here.
[0045] The above merely illustrates the embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which are made by using the content of the present application specification and drawings, are also included in the patent protection scope of the present application.
Claims
1. A shockproof universal watch characterized by comprising: The utility model relates to a protective cover for a multimeter, comprising: a multimeter body (1), and a protective cover (2) sleeved on the multimeter body (1) and used for protecting the multimeter body (1), one end of the protective cover (2) being provided with an insertion port (2a) for inserting the multimeter body (1), and each corner of the protective cover (2) being provided with an arc-shaped rubber edge (3); each of the arc-shaped rubber edges (3) on both sides of the insertion port (2a) is provided with a plurality of detachable arc-shaped rubber plates (5); the bottom of the protective cover (2) is provided with a plurality of evenly distributed semicircular grooves, and each semicircular groove is fixedly embedded with a rubber ball (6). each side wall of the multimeter body (1) is provided with a T-shaped sliding groove (1a), and each inner wall of the protective cover (2) is fixedly embedded with a T-shaped guide plate (22) matched with the T-shaped sliding groove (1a).
2. The shockproof watch of claim 1, wherein one side wall of the protective cover (2) close to the insertion port (2a) is provided with a threaded through hole, and a fastening screw (8) is inserted into the threaded through hole in a threaded connection manner and used for locking the multimeter body (1).
3. The shockproof watch of claim 1, wherein each corner of the protective cover (2) is provided with a cutout (2b), the arc-shaped rubber edge (3) is fixedly embedded in the cutout (2b), and the arc-shaped rubber edge (3) extends to both sides of the protective cover (2).
4. The shockproof watch of claim 1 wherein, each of the arc-shaped rubber edges (3) on both sides of the insertion port (2a) is provided with a cut cavity (3a), and each of the arc-shaped rubber edges (3) on both sides of the insertion port (2a) is provided with a plurality of T-shaped grooves (3b) distributed equidistantly in the up-down direction.
5. The shockproof watch of claim 1 wherein, each end of the arc-shaped rubber plate (5) is fixedly embedded with a T-shaped plug (51), and the T-shaped plugs (51) on both sides of the arc-shaped rubber plate (5) are respectively inserted into the T-shaped grooves (3b) of the arc-shaped rubber edges (3).
6. The shockproof watch of claim 5 wherein, each side plate head of the arc-shaped rubber plate (5) is fixedly connected with a rubber embedded seat (41), and the rubber embedded seat (41) is fixedly installed on the inner extension edge plate (21).
7. The shockproof watch of claim 1 wherein, the inner bottom wall of the protective cover (2) is fixedly installed with an elastic gasket (7).
8. The shockproof watch of claim 1 wherein,