Coated anti-creeping structure for electrical instruments and meters
By using a wrap-around anti-leakage structure, and by utilizing the deformation adaptation of the outer rubber sleeve and the inner clip, as well as the fixing of the tension strip, the problems of leakage and size compatibility of electrical instruments used outdoors are solved, achieving full coverage protection and stable installation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-13
- Publication Date
- 2026-03-17
AI Technical Summary
In existing technologies, when electrical instruments are used outdoors, the exposed metal casing is prone to leakage, and the lack of full-size coverage protection limits their operating conditions.
It adopts an enclosed anti-leakage structure, including an outer rubber sleeve and an inner clip, which adapts to different sizes by shrinking and expanding holes and the deformation of the sealing plate, and achieves stable installation and protection by combining tension strips and flip covers.
It provides full coverage protection for electrical instruments of different sizes, preventing water seepage and dust ingress, and ensuring the stability and safety of the instruments when used outdoors.
Smart Images
Figure CN224005140U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrical instrument protection technology, and in particular to a covered leakage protection structure for electrical instruments. Background Technology
[0002] Electrical instruments are classified according to the object being measured, such as ammeters, voltmeters, wattmeters, kilowatt-hour meters, and ohmmeters; according to their working principle, such as magnetoelectric, electromagnetic, electrodynamic, and induction systems; according to the type of electrical quantity measured, such as AC meters, DC meters, and AC / DC meters; according to their usage and installation method, such as fixed (switchboard) type, portable type, and intelligent type; and according to their error class, they are classified into seven levels: 0.1, 0.2, 0.5, 1.0, 1.5, 2.5, and 5.0. The smaller the number, the smaller the error and the higher the accuracy level of the instrument.
[0003] When electrical instruments are used outdoors, their metal casings are basically exposed. When the casing is damaged, leakage and short circuit are very likely to occur. The existing technology solves this problem by grounding the metal casing. However, there is still a lack of a protective structure for the metal casing of electrical instruments. It is impossible to achieve full-size coverage protection according to the different specifications of electrical instruments, which limits the operating conditions of electrical instruments.
[0004] To address the aforementioned technical shortcomings, a solution is proposed. Utility Model Content
[0005] The purpose of this utility model is to provide a wrap-around leakage protection structure for electrical instruments and meters, in order to solve the problem that the existing technology cannot achieve full-size coverage protection according to different specifications of electrical instruments and meters, which limits the operating conditions of electrical instruments and meters.
[0006] The objective of this utility model can be achieved through the following technical solution: a cover-type anti-leakage structure for electrical instruments, comprising an outer rubber sleeve and an inner clip, wherein the inner clip is clipped onto the outside of the instrument through openings on the front and rear sides, and the outer rubber sleeve is covered and disposed outside the inner clip. Multiple expansion and contraction holes are provided on the front and rear sides of the upper and lower ends of the outer rubber sleeve at intervals. A sealing plate with a "T" shaped cross section is embedded in the upper surface of the outer rubber sleeve through the expansion and contraction holes. A front cover plate is installed on the front side of the outer rubber sleeve through the expansion and contraction holes by means of a mating strip, and a flip cover is hinged downward at the top front end of the front cover plate.
[0007] Preferably, the inner side of the outer rubber sleeve is provided with a plurality of slots spaced apart, and a tensioning strip is installed on the outer rubber sleeve through the slots. Both ends of the tensioning strip are provided with inclined platforms.
[0008] Preferably, the outer rubber sleeve is connected to the outer wall of the inner card holder through the inner side of the tensioning strip, and a pair of semi-cylindrical latex protrusions are provided in the middle of the inner side of the tensioning strip.
[0009] Preferably, both the upper and lower ends of the inner clip and the outer rubber sleeve are provided with wire holes for the instrument wiring to pass through. The inner clip and the outer rubber sleeve are fitted with a retaining ring through one of the wire holes at the bottom. The retaining ring is a metal ring and a grounding rod is connected to its bottom.
[0010] Preferably, the outer rubber sleeve is fitted with a wire clamp on the upper surface through the top wire hole. The wire clamp has a hollow conical structure, and a clamp block is installed on the upper surface of each wire clamp.
[0011] Preferably, the mating strip is installed on the rear side of the upper and lower ends of the front cover, and the mating strip is fully fitted with the expansion and contraction holes, and a pull plate is installed at the middle position of the bottom of the flip cover.
[0012] Preferably, each of the outer ends of the upper surface of the sealing plate is equipped with a lifting strip, and the cross-section of the lifting strip is a reverse oblique hook structure.
[0013] The beneficial effects of this utility model are:
[0014] (1) In this utility model, the inner card frame is first fitted from the outside to the inside to the outside of the instrument, and then the outer rubber sleeve is opened and fitted onto the inner card frame to align the wire holes. If the initial size of the outer rubber sleeve is different from that of the inner card frame, the outer rubber sleeve is opened and tightened to cover the inner card frame, which plays a role in protecting the inner card frame and the metal shell of the electrical instrument. Due to the excessive size of the inner card frame, the upper and lower sides of the outer rubber sleeve are opened and the length is changed by the expansion and contraction holes. The sealing plate that is inserted in the expansion and contraction holes always follows the expansion and contraction holes. That is, when the expansion and contraction holes are stretched and expanded to both sides, the sealing plate also undergoes tensile deformation. Similarly, when the expansion and contraction holes are compressed, the sealing plate also undergoes compression deformation. This enables the instrument to be used to cover electrical instruments of different sizes and specifications, achieving the purpose of protection. The front cover and the flip cover together complete the front covering of the electrical instrument, and the flip cover facilitates the observation of the instrument readings.
[0015] (2) Before the outer rubber sleeve is fitted onto the inner bracket, insert the tensioning strip into the slot on the inside of the outer rubber sleeve, and then use the inclined platform on the tensioning strip to fit it onto the inner bracket. Under the premise that the outer rubber sleeve itself has elastic shrinkage function, the tensioning strip achieves secondary fixation, improves the stable installation between the outer rubber sleeve and the inner bracket, avoids the problem of falling off under the influence of adverse outdoor factors, which would lead to the failure of protection for electrical instruments. In addition, the upward connecting wires of electrical instruments can be effectively tightened by wire clamps and clamps, and the smooth water-draining structure on the outside of the cone can quickly achieve water drainage, avoiding the phenomenon of water seeping into the electrical instruments after the connecting wires are installed, which also plays a protective role. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings;
[0017] Figure 1 This is a three-dimensional structural view of the entire utility model;
[0018] Figure 2 This is a schematic diagram of the rear-view, upward-looking structure of this utility model;
[0019] Figure 3 This is a structural breakdown diagram of the present invention;
[0020] Figure 4 This is a structural disassembly diagram of the outer rubber sleeve of this utility model;
[0021] Figure 5 This is a schematic diagram of the installation structure of the tensioning strip of this utility model;
[0022] Figure 6 This is a front view schematic diagram of the outer rubber sleeve of this utility model;
[0023] Figure 7 This is a schematic diagram of the wire hoop of this utility model.
[0024] Legend: 1. Outer rubber sleeve; 2. Front cover plate; 3. Flip cover; 4. Pull plate; 5. Grounding rod; 6. Sealing plate; 7. Cable clamp; 8. Inner bracket; 9. Opening; 10. Cable hole; 11. Expansion / contraction hole; 12. Lifting strip; 13. Snap ring; 14. Slot; 15. Tensioning strip; 16. Inclined platform; 17. Hoop block; 18. Mating strip. Detailed Implementation
[0025] 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.
[0026] Example 1: This example is used to solve the problem in the prior art that it is impossible to achieve full-size coverage protection according to different specifications of electrical instruments and meters, which limits the operating conditions of electrical instruments and meters.
[0027] Please see Figure 1 - Figure 7As shown, this embodiment is a protective leakage current structure for electrical instruments, including an outer rubber sleeve 1 and an inner clip 8. The inner clip 8 is clipped onto the outside of the instrument through openings 9 on the front and rear sides. The outer rubber sleeve 1 is wrapped around the inner clip 8. Multiple expansion and contraction holes 11 are provided at intervals on the front and rear sides of the upper and lower ends of the outer rubber sleeve 1. A sealing plate 6 with a "T" shaped cross section is embedded in the upper surface of the outer rubber sleeve 1 through the expansion and contraction holes 11. A front cover plate 2 is inserted and installed on the front side of the outer rubber sleeve 1 through the expansion and contraction holes 11 via a mating strip 18. A flip cover 3 is hinged downward at the top front end of the front cover plate 2.
[0028] Both the inner clip 8 and the outer rubber sleeve 1 have wire holes 10 for instrument wiring to pass through at both the top and bottom. The inner clip 8 and the outer rubber sleeve 1 are fitted with a retaining ring 13 through one of the wire holes 10 at the bottom. The retaining ring 13 is a metal ring and the bottom is connected to a grounding rod 5. The outer rubber sleeve 1 is fitted with a wire clamp 7 through the upper surface of the top wire hole 10. The wire clamp 7 has a hollow conical structure. Each wire clamp 7 has a clamp block 17 installed on its upper surface.
[0029] The mating strip 18 is installed on the rear side of the upper and lower ends of the front cover plate 2, and the mating strip 18 is fully fitted with the expansion and contraction hole 11. A pull plate 4 is installed at the middle position of the bottom of the flip cover 3. A lifting strip 12 is installed on the outer end side of the upper surface of the sealing plate 6. The cross section of the lifting strip 12 is a reverse oblique hook structure. The front cover plate 2 matches the front end side of the expansion and contraction hole on the outer rubber sleeve 1 through the mating strip 18, thereby achieving a stable insertion, protecting the instrument panel, and facilitating the reading of the display.
[0030] Please see Figure 1 - Figure 4 As shown, for outdoor electrical instruments, the inner bracket 8 is first fitted onto the outside of the instrument from the outside in, and then the outer rubber sleeve 1 is opened and fitted onto the inner bracket 8 so that the wire hole 10 is aligned. If the initial size of the outer rubber sleeve 1 is different from that of the inner bracket 8, the outer rubber sleeve 1 is opened and tightened to cover the inner bracket 8, which plays a role in the safety protection of the inner bracket 8 and the metal shell of the electrical instrument. During the process of fitting the outer rubber sleeve 1, when fitting it onto the inner bracket 8, it is first passed through the bottom wire hole 10 through the grounding rod 5 before the fitting is completed to avoid the grounding rod 5 failing to ground properly.
[0031] The process of opening the outer rubber sleeve 1 is as follows: Due to the excessive size of the inner clip 8, the upper and lower sides of the outer rubber sleeve 1 change length by the expansion and contraction hole 11 when it is opened. The sealing plate 6, which is inserted in the expansion and contraction hole 11, always changes with the expansion and contraction hole 11. That is, when the expansion and contraction hole 11 is stretched and expanded to both sides, the sealing plate 6 also undergoes tensile deformation. Similarly, when the expansion and contraction hole 11 is compressed, the sealing plate 6 also undergoes compressive deformation. This allows it to be used to cover electrical instruments of different sizes and specifications, thus achieving the purpose of protection.
[0032] After the outer perimeter of the electrical instrument is covered, the front side of the electrical instrument is covered by the front cover 2 and the flip cover 3. The flip cover 3 can be flipped to facilitate the observation of the instrument readings.
[0033] Example 2: This example is based on Example 1. After completing full-size protection for electrical instruments during outdoor use, this example addresses how to achieve a stable fit between the outer rubber sleeve 1 and the inner clip 8.
[0034] Please see Figure 3 - Figure 6 As shown, a type of enclosed anti-leakage structure for electrical instruments and meters in this embodiment includes a plurality of slots 14 spaced apart on the inner side of an outer rubber sleeve 1. A tensioning strip 15 is installed on the outer rubber sleeve 1 through the slots 14. Inclined platforms 16 are provided at both the front and rear ends of the tensioning strip 15. The outer rubber sleeve 1 is connected to the outer side wall of the inner card holder 8 through the inner side of the tensioning strip 15. A pair of semi-cylindrical latex protrusions are provided in the middle of the inner side of the tensioning strip 15.
[0035] Please see Figure 4 - Figure 6 As shown, before the outer rubber sleeve 1 is fitted onto the inner bracket 8, a tensioning strip 15 is inserted into the slot 14 inside the outer rubber sleeve 1, and then the inclined platform 16 on the tensioning strip 15 is used to fit it onto the inner bracket 8. Under the premise that the outer rubber sleeve 1 itself has an elastic shrinkage function, the tensioning strip 15 achieves secondary fixation, improves the stable installation between the outer rubber sleeve 1 and the inner bracket 8, and avoids the problem of falling off under the influence of adverse outdoor factors, which would lead to the failure of protection for electrical instruments.
[0036] Furthermore, the upward-running connecting wires of electrical instruments can be effectively tightened by the wire clamp 7 and the clamp block 17, and the smooth water-draining structure on the outside of the cone can quickly drain water, preventing water from seeping into the electrical instruments after the connecting wires are run through, thus also playing a protective role.
[0037] Combining Embodiment 1 and Embodiment 2, the enveloping structure formed by the outer rubber sleeve 1, the inner clip 8, and the front flip cover 3 can achieve stable enveloping protection for electrical instruments during outdoor use, effectively preventing water seepage, dust ingress, and damage from external forces. Furthermore, the retractable outer rubber sleeve 1, in conjunction with the tensioning strip 15, enables the adaptability of the entire enveloping structure to the electrical instruments, thereby meeting the needs of electrical instruments of different sizes.
[0038] Installation process and principle of this utility model:
[0039] Step 1: First, put the inner clip 8 on the outside of the instrument from the outside in, and then open the outer rubber sleeve 1 and put it on the inner clip 8 so that the wire hole 10 is aligned.
[0040] Step 2: In Step 1, when the outer rubber sleeve 1 is fitted onto the inner bracket 8, it first passes through the bottom wire hole 10 to the grounding rod 5 before being fitted, to avoid the grounding rod 5 failing to ground properly. Before the outer rubber sleeve 1 is fitted onto the inner bracket 8, the tensioning strip 15 is inserted into the slot 14 on the inside of the outer rubber sleeve 1, and then the inclined platform 16 on the tensioning strip 15 is used to fit it onto the inner bracket 8. Under the premise that the outer rubber sleeve 1 itself has an elastic shrinkage function, the tensioning strip 15 achieves secondary fixation.
[0041] Step 3: When the outer rubber sleeve 1 is opened, the upper and lower sides are lengthened by the expansion and contraction hole 11. The sealing plate 6, which is inserted in the expansion and contraction hole 11, always changes with the expansion and contraction hole 11. That is, when the expansion and contraction hole 11 is stretched and expanded to both sides, the sealing plate 6 also undergoes tensile deformation. Similarly, when the expansion and contraction hole 11 is compressed, the sealing plate 6 also undergoes compressive deformation, thereby enabling it to be used to cover electrical instruments of different sizes and specifications.
[0042] Step 4: After completing the outer perimeter wrapping of the electrical instrument, the front side wrapping of the electrical instrument is completed by using the front cover 2 and the flip cover 3 together;
[0043] In summary: By integrating the components into a single, enclosed structure, stable protection is achieved for electrical instruments during outdoor use, effectively preventing water seepage, dust ingress, and damage from external forces. Furthermore, the entire enclosed structure allows for compatible installation with the electrical instruments, thus meeting the needs of electrical instruments of different sizes.
[0044] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.
Claims
1. A covered anti-creeping structure for electrical instruments, comprising an outer rubber sleeve (1) and an inner holder (8), characterized in that, The inner card holder (8) is clamped outside the instrument through the openings (9) on the front and back sides, the outer rubber sleeve (1) is wrapped outside the inner card holder (8), a plurality of expansion holes (11) are arranged on the front and back sides of the upper and lower ends of the outer rubber sleeve (1), and the outer rubber sleeve (1) is embedded with a sealing plate (6) with a "T" shaped cross section through the upper surface of the expansion hole (11); the outer rubber sleeve (1) is provided with a front cover plate (2) through the front side of the expansion hole (11) and the cooperation strip (18), and the front end top of the front cover plate (2) is hingedly connected with a flip cover (3) downward.
2. A covered electric leakage protection structure for electrical instruments and meters as claimed in claim 1, wherein, The inner side of the outer rubber sleeve (1) is provided with a plurality of insertion grooves (14) arranged at intervals, the outer rubber sleeve (1) is provided with a tension strip (15) through the insertion groove (14), and the front and back ends of the tension strip (15) are provided with inclined tables (16).
3. A covered electric leakage protection structure for electrical instruments and meters according to claim 2, characterized in that, The outer rubber sleeve (1) is connected with the outer side wall of the inner card holder (8) through the inner side of the tension strip (15), and a pair of semicylindrical latex convex strips are arranged on the inner side of the middle of the tension strip (15).
4. A covered electric leakage protection structure for electrical instruments and meters as claimed in claim 1, wherein, The upper and lower ends of the inner card holder (8) and the outer rubber sleeve (1) are provided with wire holes (10) for instrument wiring, the inner card holder (8) and the outer rubber sleeve (1) are embedded with a clamping ring (13) through one of the wire holes (10) at the bottom, the clamping ring (13) is a metal ring and is connected with a grounding rod (5) at the bottom.
5. A covered electric leakage protection structure for electrical instruments and meters as claimed in claim 4, wherein, The outer rubber sleeve (1) is provided with a wire clamp (7) through the upper surface of the top wire hole (10), the wire clamp (7) has a hollow structure of a conical cylinder, and the upper surface of each wire clamp (7) is provided with a clamp block (17).
6. A covered electric leakage protection structure for electrical instruments and meters as claimed in claim 1, wherein, The cooperation strip (18) is arranged on the rear side of the upper and lower ends of the front cover plate (2), and the cooperation strip (18) is filled with the expansion hole (11), and the bottom of the flip cover (3) is provided with a pull plate (4) at the middle position.
7. A covered electric leakage protection structure for electrical instruments and meters as claimed in claim 1, wherein, The outer end side of the upper surface of the sealing plate (6) is provided with a pull strip (12), and the cross section of the pull strip (12) is a reverse inclined hook structure.