A high-speed anti-interference bridge tester
By incorporating edge protection and cover protection mechanisms on the bridge tester, the impact of environmental interference on measurement accuracy is resolved, achieving comprehensive shielding protection for the tester and improving the stability and reliability of measurements.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU APPLENT INSTR LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-07-14
Smart Images

Figure CN224500747U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of bridge testers, specifically a high-speed anti-interference bridge tester. Background Technology
[0002] A bridge tester is an electronic instrument used to accurately measure electrical parameters such as resistance, capacitance, and inductance. It achieves high-precision measurement through the bridge balance principle and is widely used in laboratories, production lines, and power equipment maintenance.
[0003] Currently, the bridge tester still has some shortcomings in actual use. It is affected by the ambient temperature and humidity, and the data detected by the bridge tester will fluctuate. In particular, the temperature difference between indoor and outdoor testing is large, so the actual measurement results of the tester will fluctuate greatly. At the same time, dirt in the humid airflow can also cause the exposed components of the tester to adhere, and in severe cases, it can oxidize the terminals of the tester.
[0004] In view of this, a high-speed anti-interference bridge tester was designed to solve the above problems. Utility Model Content
[0005] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.
[0006] Therefore, the technical solution adopted by this utility model is as follows:
[0007] A high-speed anti-interference bridge tester includes a bridge tester, two sets of activated edge protection mechanisms disposed on both sides of the bridge tester, and a cover protection mechanism disposed on the bridge tester. The activated edge protection mechanism includes a horizontally placed crossbeam installed on the outside of the bridge tester, a first locking member movably installed at one end of the crossbeam, an arc-shaped slide rail installed at the other end of the crossbeam, a support frame movably installed outside the first locking member, and a second locking member movably installed inside the support frame, the second locking member being adapted to penetrate into the arc-shaped slide rail. A side shielding curtain is connected between the support frame and the crossbeam, and multiple sliding columns are fixedly installed on the arc surface of the side shielding curtain, the multiple sliding columns being movably installed in the arc-shaped slide rail. The cover protection mechanism includes a top shielding cloth snapped onto the two supports, the top shielding cloth being adapted to fit against the outer wall of the two arc-shaped slide rails.
[0008] In a preferred embodiment, the present invention may be further configured as follows: the protective cover mechanism further includes a storage base fixedly installed outside the bridge tester, and the storage base has two first clamping plates and two second clamping plates fixedly installed outside the storage base, a take-up roller movably installed between the first clamping plates and the second clamping plates, and a torsion spring fixedly connected between the take-up roller and the first clamping plates.
[0009] In a preferred embodiment, the present invention can be further configured such that the protective cover mechanism also includes two clamps fixedly installed at the bottom of the storage base and two guide wheels movably installed within the two clamps;
[0010] The guide wheel has an annular groove on its outside.
[0011] In a preferred embodiment, the present invention may be further configured such that the protective cover mechanism further includes two steel cables, which are adapted to be wound around the take-up roller, and the other end of the steel cables is adapted to penetrate to the outside.
[0012] In a preferred embodiment, the present invention can be further configured such that: the inner walls of both the side shielding curtain and the top shielding curtain are provided with an insulating coating, and the outer wall coatings of both the side shielding curtain and the top shielding curtain are provided with conductive particles.
[0013] In a preferred embodiment, the present invention can be further configured such that: the edge protection mechanism further includes a cable tray fixedly installed at the bottom of the crossbeam, and the top of the bottom fixing support frame of the cable tray is provided with a sliding groove, and the second locking member is movably installed in the sliding groove.
[0014] In a preferred embodiment, the present invention can be further configured such that: two symmetrically distributed arc-shaped grooves are provided on the inner side of the top shielding cloth, and the two steel cables are respectively adapted and snapped into the two arc-shaped grooves.
[0015] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:
[0016] 1. This utility model provides two sets of activated edge protection mechanisms evenly distributed on both sides of the bridge tester. As the two sets of activated edge protection mechanisms expand synchronously with the side flip of the bridge tester cover, the synchronously stretched top shielding cloth can work with the two side shielding curtains to add a barrier protection to the exposed area of the bridge tester, thereby effectively preventing the bridge tester from malfunctioning or accumulating dust during actual testing. Attached Figure Description
[0017] Figure 1 This is a schematic diagram illustrating the use of this utility model;
[0018] Figure 2 This is an exploded view of the present invention;
[0019] Figure 3 This is a schematic diagram of the protective cover mechanism of this utility model;
[0020] Figure 4 This is an explosion diagram of the protective cover mechanism of this utility model;
[0021] Figure 5 This is a schematic diagram of the edge protection mechanism used in this utility model;
[0022] Figure 6 This utility model Figure 5 Enlarged view of point A in the middle;
[0023] Figure 7 This utility model Figure 5 Enlarged diagram of point B in the middle.
[0024] Figure label:
[0025] 100. Bridge tester;
[0026] 200. Activate the edge protection mechanism; 210. Crossbeam; 2101. First locking element; 220. Cable tray; 230. Arc-shaped slide rail; 240. Support frame; 2401. Second locking element; 250. Side shielding curtain; 2501. Sliding column;
[0027] 300. Surface protection mechanism; 310. Storage base; 3101. Horizontal groove; 320. First clamping plate; 3201. Second clamping plate; 3202. Torsion spring; 330. Take-up roller; 340. Clamp; 350. Guide wheel; 360. Steel cable; 370. Top shielding cloth. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.
[0029] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.
[0030] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a high-speed anti-interference bridge tester.
[0031] Example 1:
[0032] Combination Figures 1 to 7 As shown, the present invention provides a high-speed anti-interference bridge tester, including a bridge tester 100, two sets of activated edge protection mechanisms 200 disposed on both sides of the bridge tester 100, and a cover protection mechanism 300 disposed on the bridge tester 100. The two sets of activated edge protection mechanisms 200 are used to protect the exposed side areas of the bridge tester 100 after it is turned on, and the cover protection mechanism 300 is used to cooperate with the two sets of activated edge protection mechanisms 200 to protect the area directly above the turned-on area of the bridge tester 100.
[0033] The edge protection mechanism 200 includes a horizontal beam 210 installed on the outside of the bridge tester 100, a first locking member 2101 movably installed at one end of the beam 210, an arc-shaped slide rail 230 installed at the other end of the beam 210, a support frame 240 movably installed outside the first locking member 2101, and a second locking member 2401 movably installed inside the support frame 240, wherein the second locking member 2401 is adapted to pass through the arc-shaped slide rail 230.
[0034] A side shielding curtain 250 is connected between the support frame 240 and the crossbeam 210, and multiple sliding columns 2501 are fixedly installed on the arc surface of the side shielding curtain 250, and the multiple sliding columns 2501 are movably installed in the arc-shaped slide rail 230.
[0035] The protective cover mechanism 300 includes a top shielding cloth 370 that is snapped onto two supports 240, and the top shielding cloth 370 is adapted to fit against the outer wall of two arc-shaped slide rails 230.
[0036] The protective cover mechanism 300 also includes two steel cables 360, a storage base 310 fixedly installed outside the bridge tester 100, and a transverse groove 3101 opened inside the storage base 310, two first clamping plates 320 and two second clamping plates 3201 fixedly installed outside the storage base 310, a take-up roller 330 movably installed between the first clamping plates 320 and the second clamping plates 3201, a torsion spring 3202 fixedly connected between the take-up roller 330 and the first clamping plates 320, two clamps 340 fixedly installed at the bottom of the storage base 310, and two guide wheels 350 movably installed in the two clamps 340.
[0037] The guide wheel 350 has an annular groove on its outer side.
[0038] The steel cable 360 is adapted to be wound on the take-up roller 330, and the other end of the steel cable 360 is adapted to pass through the outside of the transverse groove 3101;
[0039] The inner side of the top shielding cloth 370 has two symmetrically distributed arc-shaped grooves, and the two steel cables 360 are respectively adapted and snapped into the two arc-shaped grooves.
[0040] When the cover plate of the bridge tester 100 is flipped outward, the two supports 240 that flip outward in sync with the cover plate will drive the two side shielding curtains 250 to expand until the two side shielding curtains 250 and the frame of the two arc-shaped slide rails 230 are stretched to the maximum extent.
[0041] At the same time, as the two supports 240 flip, the top shielding cloth 370, which is in a snap-fit state, will slide effectively along the outer wall of the two arc-shaped slide rails 230 until the top shielding cloth 370, together with the two side shielding curtains 250, provides airtight protection for the suspended area after the bridge tester 100 is turned on, thereby providing protection against moisture, high temperature and electromagnetic interference for the bridge tester 100 during operation.
[0042] Example 2:
[0043] Combination Figure 2 and Figure 5 As shown, based on Embodiment 1, the edge protection mechanism 200 further includes a cable tray 220 fixedly installed at the bottom of the crossbeam 210, and the top of the bottom fixed support bracket 240 of the cable tray 220 is provided with a sliding groove, and the second locking member 2401 is movably installed in the sliding groove.
[0044] The inner walls of both the side shielding curtain 250 and the top shielding cloth 370 are provided with an insulating coating, and the outer wall coatings of both the side shielding curtain 250 and the top shielding cloth 370 are provided with conductive particles.
[0045] Preferably, after the bridge tester 100 is opened and protected, the wires can be passed through the holes inside the two ribbon cables 220, and then the wires passed through the ribbon cables 220 are connected to the terminals on the control panel inside the bridge tester 100.
[0046] The working principle and usage process of this utility model are as follows: When the bridge tester 100 is activated, after the cover of the bridge tester 100 is opened outward, the nuts in the two second locking parts 2401 are loosened in advance. Then, the two support frames 240 are flipped to the side of the cover of the bridge tester 100 and slid in the opposite direction. The side shielding curtain 250 connected to the inside of the support frame 240 is expanded along the inside of the arc-shaped slide rail 230 under the guidance of multiple sliding columns 2501 until the side shielding curtain 250, together with the crossbeam 210 and the arc-shaped slide rail 230, constitutes the shielding layer for the side detection of the bridge tester 100.
[0047] After the two sets of edge protection mechanisms 200 are extended outward, the two lateral shielding layers can block lateral interference factors from the bridge tester 100.
[0048] As the two supports 240 tilt synchronously, the top shielding cloth 370 and the two steel cables 360 set on the two supports 240 will be stretched synchronously until the top shielding cloth 370 slides effectively along the top of the two arc-shaped slide rails 230. Finally, the top shielding cloth 370 can work with the two side shielding curtains 250 to provide shielding protection for the exposed area of the bridge tester 100 after it is opened, thereby effectively blocking the temperature and humidity of the external environment from interfering with the tester.
[0049] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A high-speed anti-interference bridge tester, comprising a bridge tester (100), characterized in that, It also includes two sets of edge protection mechanisms (200) installed on both sides of the bridge tester (100) and a cover protection mechanism (300) installed on the bridge tester (100). The activated edge protection mechanism (200) includes a horizontal beam (210) installed on the outside of the bridge tester (100), a first locking member (2101) movably installed at one end of the beam (210), an arc-shaped slide rail (230) installed at the other end of the beam (210), a support frame (240) movably installed outside the first locking member (2101), and a second locking member (2401) movably installed inside the support frame (240), wherein the second locking member (2401) is adapted to penetrate into the arc-shaped slide rail (230); A side shielding curtain (250) is connected between the support frame (240) and the crossbeam (210), and multiple sliding columns (2501) are fixedly installed on the arc surface of the side shielding curtain (250), and the multiple sliding columns (2501) are movably installed in the arc-shaped slide rail (230); The protective cover mechanism (300) includes a top shielding cloth (370) that is snapped onto two supports (240), and the top shielding cloth (370) is adapted to fit against the outer wall of two arc-shaped slide rails (230).
2. The high-speed anti-interference bridge tester according to claim 1, characterized in that, The cover protection mechanism (300) also includes a storage base (310) fixedly installed outside the bridge tester (100), and the storage base (310) has a transverse groove (3101) inside, two first clamping plates (320) and two second clamping plates (3201) fixedly installed outside the storage base (310), a take-up roller (330) movably installed between the first clamping plate (320) and the second clamping plate (3201), and a torsion spring (3202) fixedly connected between the take-up roller (330) and the first clamping plate (320).
3. The high-speed anti-interference bridge tester according to claim 1, characterized in that, The protective cover mechanism (300) also includes two clamps (340) fixedly installed at the bottom of the storage base (310) and two guide wheels (350) movably installed in the two clamps (340). The guide wheel (350) has an annular groove on its outside.
4. The high-speed anti-interference bridge tester according to claim 1, characterized in that, The protective cover mechanism (300) also includes two steel cables (360), which are adapted to be wound on the take-up roller (330), and the other end of the steel cable (360) is adapted to extend through the outside of the transverse groove (3101).
5. A high-speed anti-interference bridge tester according to claim 1, characterized in that, The inner walls of the side shielding curtain (250) and the top shielding cloth (370) are provided with an insulating coating, and the outer wall coatings of the side shielding curtain (250) and the top shielding cloth (370) are provided with conductive particles.
6. The high-speed anti-interference bridge tester according to claim 1, characterized in that, The activated edge protection mechanism (200) also includes a cable tray (220) fixedly installed at the bottom of the crossbeam (210), and the top of the bottom fixed support bracket (240) of the cable tray (220) is provided with a sliding groove, and the second locking member (2401) is movably installed in the sliding groove.
7. The high-speed anti-interference bridge tester according to claim 1, characterized in that, The inner side of the top shielding cloth (370) has two symmetrically distributed arc-shaped grooves, and the two steel cables (360) are respectively adapted to be snapped into the two arc-shaped grooves.