Bypass cable working current real-time monitoring alarm device

Abstract

The utility model relates to the field of current monitoring equipment, and discloses a bypass cable working current real-time monitoring alarm device, which comprises two sets of machine shells and two sets of inner covers, the machine shells are of semi-circular ring structures, the inner covers are fixed at the openings of the inner sides of the machine shells, the openings of the two sets of machine shells are opposite, one ends of the connection parts of the two sets of machine shells are hinged and matched, and the other ends of the two sets of machine shells are hinged and matched. A lock catch piece is arranged at the other end of the connecting position of the two sets of machine shells, and the two sets of clamping parts are symmetrically arranged in the middles of the two sets of inner covers and extend into the inner sides of the machine shells. The cable clamping device has the beneficial effects that the two groups of clamping parts capable of lifting and moving are arranged, and the clamping pieces of the two groups of clamping parts are kept against tightly through the springs, so that the flexible clamping pieces can be used for pressing the outer surface of a cable to be detected, and further clamping and fixing are realized; the problem that an existing solid clamping block serving as a clamping component has the minimum requirement for the diameter of a cable is solved, the clamping range is wider, and use is more convenient.

Description

Technical Field

[0001] The utility model relates to the field of current monitoring equipment, in particular to a bypass cable working current real-time monitoring and alarm device. Background Art

[0002] A bypass cable is a cable that temporarily replaces the main cable when the main cable of the power system fails or needs maintenance. Its main function is to ensure the continuity of power supply and avoid power outages caused by problems with the main cable. By monitoring the current of the bypass cable, the working status of the bypass cable can be understood in real time to ensure that it operates within the safe current range, prevent safety hazards caused by overload, and make fault warnings. Specifically, when the current changes or fluctuates suddenly, preventive measures can be taken in time and the load can be reasonably distributed.

[0003] At present, the bypass cable current monitoring is realized by clamp-on current transformers, which rely on two sets of movable clamping blocks in the middle of the semicircular ring shell to clamp and lock the cable to be tested during use. In order to improve the clamping stability, the contact surface between the clamping block and the cable is usually set to an arc shape, and an empty cavity for the cable to extend into is formed between the two sets of clamping blocks. This type of equipment has limitations in use. Specifically, when the two sets of clamping blocks are in abutment, if the diameter of the cable is still smaller than the diameter of the empty cavity, the clamping block cannot clamp the cable to be tested (such as Figure 8 As shown in the figure), there is a minimum range requirement for the cable size, which makes the applicability poor. Utility Model Content

[0004] The purpose of the utility model is to provide a bypass cable working current real-time monitoring and alarm device in order to solve the above-mentioned problem. Two sets of lifting and movable clamping parts are arranged, and the clamping pieces of the two sets of clamping parts are kept tightly pressed by springs, so that the flexible clamping pieces can be pressed to the outer surface of the cable to be tested to achieve clamping and fixing, thereby solving the problem that the existing solid clamping block as a clamping component has a minimum requirement for the cable diameter. The clamping range is wider and the use is more convenient, as described below.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The bypass cable working current real-time monitoring alarm device provided by the utility model comprises two sets of housings and two sets of inner covers, the housings are semicircular structures, the inner covers are fixed at the inner openings of the housings, the two sets of housing openings are opposite, one end of the two sets of housings where they are connected is hinged, and the other end of the two sets of housings where they are connected is provided with a locking piece, and also comprises two sets of clamping parts, the two sets of clamping parts are symmetrically arranged at the middle of the two sets of inner covers and extend into the inner side of the housing, and the inner sides of the two sets of housings are both provided with sliding rods supporting the vertical sliding of the clamping parts;

[0007] The clamping part includes a guide plate that vertically slides and cooperates with the sliding rod, two groups of transversely arranged support plates are fixed on opposite sides of the two groups of guide plates, a support is hinged on the bottom side of the support plate, a sleeve is fixed on the bottom side of the support, a bendable clamping piece is transversely connected between the two groups of sleeves, and a spring is arranged on the top side of the guide plate and is sleeved on the outside of the sliding rod.

[0008] The above-mentioned bypass cable working current real-time monitoring and alarm device is adopted. When in use, the locking piece is opened to spread the two sets of housings close to the locking piece. At this time, the cable to be monitored is extended between the two sets of clamping parts between the two sets of housings, and the two sets of flexible clamping pieces are supported by four sets of support plates and supports to wrap and press them onto the outer surface of the cable to be tested, thereby ensuring the clamping piece’s tight fit with the outer surface of the cable when used as a supporting and tightening component. In addition, since the opposite surfaces of the two sets of clamping pieces can fit together, there is no requirement for the minimum size of the cable to be tested, and it can be adapted to the thinnest cable possible for clamping and monitoring, with a wider range of applications.

[0009] Preferably, two groups of guide frames extending into the interior of the casing are fixed to the outer side of the inner cover, the two groups of guide frames are symmetrically distributed, and a limiting groove for accommodating the vertical sliding of the guide plate is formed between the two groups of guide frames.

[0010] Preferably, both outer sides of the guide plate are threadedly fitted with hand screws, and the hand screws limit the guide plate from detaching downward from the inner cover.

[0011] Preferably, the front and rear sides of the bottom end of the support plate are fixed with rotating ears, and the top side of the support is fixed with a rotating shaft that longitudinally penetrates the rotating ears and is in clearance with the rotating ears.

[0012] Preferably, the rotating ear cooperates with the rotating shaft to form a rotating seat that supports the rotation of the support, and a torsion spring is sleeved on the outside of the rotating shaft inside the support, and the torsion spring presses against the support to keep the support horizontally supporting the clamping plate outward.

[0013] Preferably, both ends of the clamping piece extend outwardly with fixing ears that penetrate into the interior of the sleeve, a locking hole is vertically penetrated through the middle of the fixing ear, and a threaded hole is penetrated through the middle of the sleeve corresponding to the locking hole.

[0014] Preferably, a locking screw is vertically penetrated through the inner side of the support and passes through the threaded hole and the locking hole in sequence, and the locking screw is threadably matched with the sleeve through the threaded hole.

[0015] The beneficial effect is that the utility model provides two groups of lifting and movable clamping parts, and uses springs to keep the clamping pieces of the two groups of clamping parts tightly pressed together, so that the flexible clamping pieces can be pressed against the outer surface of the cable to be tested to achieve clamping and fixing, thereby solving the problem that the existing solid clamping blocks as clamping parts have a minimum requirement for the cable diameter, and the clamping range is wider and the use is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is the main structural diagram of the utility model;

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 3 It is a schematic diagram of the structure splitting of the utility model;

[0020] Figure 4 It is a schematic diagram of the partial structure split of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the housing and the inner cover of the utility model;

[0022] Figure 6 It is a schematic diagram of the structure disassembly of the clamping portion of the utility model;

[0023] Figure 7 It is a three-dimensional structural schematic diagram of the inner cover of the utility model;

[0024] Figure 8 It is the main view structure diagram of the prior art.

[0025] The following are the descriptions of the reference numerals:

[0026] 1. Casing; 2. Inner cover; 201. Guide frame; 202. Limiting groove; 3. Clamping part; 301. Guide plate; 302. Support plate; 302a. Rotating ear; 303. Support; 303a. Locking screw; 304. Rotating shaft; 305. Clamping piece; 305a. Fixing ear; 305b. Locking hole; 306. Bushing; 307. Torsion spring; 308. Thumb screw; 309. Spring; 4. Monitoring part; 5. Locking piece; 6. Sliding rod; 7. Clamping block; 8. Vacant cavity; 9. Cable to be tested. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. 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 implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0028] See also Figure 1-Figure 8 As shown, the utility model provides a bypass cable working current real-time monitoring alarm device, including two sets of housings 1 and two sets of inner covers 2, the housing 1 is a semicircular ring structure, the inner cover 2 is fixed at the inner opening of the housing 1, the two sets of housing 1 openings are opposite, one end of the connection of the two sets of housings 1 is hinged, and the other end of the connection of the two sets of housings 1 is provided with a lock 5, the lock 5 is a snap structure for locking and connecting the outer sides of the housing 1, and also includes two sets of clamping parts 3, the two sets of clamping parts 3 are symmetrically arranged in the middle of the two sets of inner covers 2 and extend into the inner side of the housing 1, and the inner sides of the two sets of housings 1 are both provided with a slide bar 6 for supporting the vertical sliding of the clamping part 3, so as to ensure that the clamping part 3 can slide to change the position of the clamping part 3 extending out of the inner cover 2, so as to clamp cables of different thicknesses for current monitoring;

[0029] The clamping portion 3 includes a guide plate 301 that vertically slides with the slide rod 6. Two groups of support plates 302 that are laterally arranged and vertically extended are fixed on opposite sides of the two groups of guide plates 301. A support 303 is hinged on the bottom side of the support plate 302. A sleeve 306 is detachably fixed on the bottom side of the support 303. The sleeve 306 is a hard plastic structure. A bendable clamping piece 305 is laterally connected between the two groups of sleeves 306. The clamping piece 305 is made of rubber to ensure that the clamping piece 305 can be bent to fit the outside of cables of different sizes to achieve clamping and positioning. A spring 309 that is sleeved on the outside of the slide rod 6 is provided on the top side of the guide plate 301.

[0030] As an optional embodiment, two groups of guide frames 201 extending into the interior of the casing 1 are fixed to the outside of the inner cover 2, the two groups of guide frames 201 are symmetrically distributed, and a limiting groove 202 for accommodating the vertical sliding of the guide plate 301 is formed between the two groups of guide frames 201, and both sides of the outer side of the guide plate 301 are threaded with hand screws 308, and the hand screws 308 limit the guide plate 301 from downwardly separating from the inner cover 2, so as to facilitate the disassembly and assembly of the guide plate 301 from between the two groups of guide frames 201 by removing the hand screws 308.

[0031] Rotating ears 302a are fixed to the front and rear sides of the bottom end of the support plate 302, and a rotating shaft 304 is fixed to the top side of the support 303, which longitudinally penetrates the rotating ears 302a and is in clearance fit with the rotating ears 302a.

[0032] The rotating ear 302a cooperates with the rotating shaft 304 to form a rotating seat for supporting the support 303 to rotate. The rotating shaft 304 inside the support 303 is sleeved with a torsion spring 307. The torsion spring 307 presses against the support 303 to keep the support 303 horizontally supporting the clamping piece 305 outward, ensuring that the two sets of clamping pieces 305 can press against the cables to be clamped inside. Both ends of the clamping piece 305 extend outward to penetrate into the inside of the bundle sleeve 306. The middle of the fixing ear 305a is vertically A locking hole 305b is passed through the support 303, and a threaded hole is passed through the middle of the sleeve 306 corresponding to the locking hole 305b. A locking screw 303a is vertically penetrated on the inner side of the support 303 and passes through the threaded hole and the locking hole 305b in sequence. The locking screw 303a is threadedly matched with the sleeve 306 through the threaded hole, so as to facilitate the detachable connection between the clamping piece 305 and the sleeve 306 through the locking screw 303a, so as to facilitate the replacement of the clamping piece 305 as a wearing part during long-term use.

[0033] A monitoring unit 4 is provided under the casing 1. The monitoring unit 4 is a current transformer, which can accurately measure the AC current of 0.5A to 400A with a resolution of up to 0.5A, thereby ensuring the accuracy of the monitoring data. The monitoring unit 4 is a prior art in the field and will not be described in detail here.

[0034] With the above structure, when in use, the locking piece 5 is opened to spread the two sets of housings 1 close to the locking piece 5. At this time, the cable to be monitored is inserted between the two sets of clamping parts 3 between the two sets of housings 1. The two sets of flexible clamping pieces 305 are supported by four sets of support plates 302 and supports 303 so that they are wrapped and pressed onto the outer surface of the cable to be tested 9, thereby ensuring the clamping piece 305 is tightly fitted with the outer surface of the cable when used as a supporting and tightening component. In addition, since the opposite surfaces of the two sets of clamping pieces 305 can fit together, there is no requirement for the minimum size of the cable to be tested 9, and it can be adapted to the clamping and monitoring of cables as thin as possible, with a wider range of applications.

[0035] By providing two groups of lifting and movable clamping parts 3, and keeping the clamping pieces 305 of the two groups of clamping parts 3 pressed tightly by springs 309, the flexible clamping pieces 305 can be pressed against the outer surface of the cable 9 to be tested to achieve clamping and fixing, thereby solving the problem that the existing solid clamping block 7 as the clamping part 3 has a minimum requirement for the cable diameter, and the clamping range is wider and the use is more convenient.

[0036] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A bypass cable working current real-time monitoring and alarm device, comprising two sets of housings (1) and two sets of inner covers (2), wherein the housings (1) are semicircular ring structures, and the inner covers (2) are fixed to the inner openings of the housings (1), the openings of the two sets of housings (1) are opposite to each other, one end of the two sets of housings (1) is hinged, and the other end of the two sets of housings (1) is provided with a locking member (5), characterized in that: It also comprises two groups of clamping parts (3), the two groups of clamping parts (3) are symmetrically arranged in the middle of the two groups of inner covers (2) and extend into the inner side of the casing (1), and the inner sides of the two groups of casings (1) are both provided with sliding rods (6) for supporting the clamping parts (3) to slide vertically; The clamping portion (3) comprises a guide plate (301) which is vertically slidably matched with the slide bar (6); two groups of transversely arranged support plates (302) are fixed on opposite sides of the two groups of guide plates (301); a support (303) is hingedly connected to the bottom side of the support plate (302); a sleeve (306) is fixed to the bottom side of the support (303); a bendable clamping sheet (305) is transversely connected between the two groups of sleeves (306); and a spring (309) which is sleeved on the outside of the slide bar (6) is provided on the top side of the guide plate (301).

2. The bypass cable working current real-time monitoring and alarm device according to claim 1 is characterized in that: Two groups of guide frames (201) extending into the interior of the housing (1) are fixed to the outside of the inner cover (2); the two groups of guide frames (201) are symmetrically distributed, and a limiting groove (202) for accommodating the vertical sliding of the guide plate (301) is formed between the two groups of guide frames (201).

3. The bypass cable working current real-time monitoring and alarm device according to claim 2 is characterized in that: Both outer sides of the guide plate (301) are threadedly engaged with hand screws (308), and the hand screws (308) restrict the guide plate (301) from detaching downward from the inner cover (2).

4. The bypass cable working current real-time monitoring and alarm device according to claim 1 is characterized in that: The front and rear sides of the bottom end of the support plate (302) are both fixed with rotating ears (302a), and the top side of the support seat (303) is fixed with a rotating shaft (304) that longitudinally penetrates the rotating ear (302a) and is in clearance fit with the rotating ear (302a).

5. The bypass cable working current real-time monitoring and alarm device according to claim 4 is characterized in that: The rotating ear (302a) cooperates with the rotating shaft (304) to form a rotating seat that supports the rotation of the support (303); the rotating shaft (304) inside the support (303) is sleeved with a torsion spring (307) on the outside; the torsion spring (307) presses against the support (303) to keep the support (303) horizontally supporting the clamping piece (305) outward.

6. The bypass cable working current real-time monitoring and alarm device according to claim 5 is characterized in that: Both ends of the clamping piece (305) extend outwards to form fixing ears (305a) that penetrate into the interior of the sleeve (306); a locking hole (305b) passes vertically through the middle of the fixing ear (305a); and a threaded hole passes through the middle of the sleeve (306) corresponding to the locking hole (305b).

7. The bypass cable working current real-time monitoring and alarm device according to claim 6 is characterized in that: A locking screw (303a) is vertically penetrated through the inner side of the support (303) and passes through the threaded hole and the locking hole (305b) in sequence. The locking screw (303a) is threadably matched with the sleeve (306) through the threaded hole.

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