CN213633588U

CN213633588U - Portable current sensing device

Info

Publication number: CN213633588U
Application number: CN202022800652.7U
Authority: CN
Inventors: 武峰
Original assignee: Zibo Wei Yuan Electronic Equipment Co ltd
Current assignee: Zibo Wei Yuan Electronic Equipment Co ltd
Priority date: 2020-11-28
Filing date: 2020-11-28
Publication date: 2021-07-06
Anticipated expiration: 2030-11-28

Abstract

The utility model belongs to the power supply field, in particular to a portable current sensing device, aiming at the existing problems, the following proposal is proposed, which comprises a containing box, a sensing device body is arranged in the containing box, two fixed blocks are respectively and fixedly arranged at two sides of the containing box, and the same handle is rotatably arranged on the two fixed blocks positioned on the horizontal direction, a cavity is arranged inside the fixed blocks, two rectangular holes are respectively arranged on the inner wall of one side of the cavity, which is far away from the containing box, one end of two moving rods are respectively and slidably arranged on the inner wall of one side of the cavity, and the other end of the moving rod passes through the rectangular hole and extends out of the fixed blocks, the utility model solves the defects in the prior art, so that people not only can carry the sensing device body with large volume, but also can turn over the two handles on the containing box to deform into a chair, for rest of the tired person.

Description

Portable current sensing device

Technical Field

The utility model relates to a power technical field especially relates to a portable current sensing device.

Background

In a power supply system, the conversion efficiency of a power supply is extremely important, and there is a method of improving the conversion efficiency of the power supply by a totem pole power factor correction circuit (hereinafter referred to as totem pole PFC). When applying the totem pole PFC to a power supply system to improve the conversion efficiency of a power supply, it is generally necessary to detect the current of the totem pole PFC to obtain the working condition of the totem pole PFC circuit.

Patent application No. CN201910113565.3 discloses a current sensing device, which comprises a current transformer, a first primary circuit, a second primary circuit, a secondary circuit; the current transformer comprises a first primary winding, a second primary winding and a secondary winding which are connected in series; the first primary loop is sequentially connected with the inductor, the power supply, the first diode, the first transistor and the first primary winding; the second primary loop is sequentially connected with an inductor, the power supply, a second diode, a second transistor and a second primary winding; the secondary loop comprises a secondary winding and an output end, the secondary winding is used for inducing the current flowing through the first primary winding or the current flowing through the second primary winding, and the output end of the secondary loop is used for outputting the sensing current corresponding to the inductor according to the current flowing through the first primary winding or the current flowing through the second primary winding. The method can accurately detect the current of the totem pole PFC by utilizing one current transformer, and can obviously reduce the cost on the premise of realizing bidirectional current detection.

The current sensing device related to the patent is usually bulky, is inconvenient to carry, limits the use place of the current sensing device, and brings difficulty to long-distance carrying of people.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a portable current sensing device.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a portable current sensing device comprises a containing box, wherein a sensing device body is placed in the containing box, two fixed blocks are respectively and fixedly installed on two sides of the containing box, a same handle is rotatably installed on the two fixed blocks in the horizontal direction, a cavity is formed in the fixed blocks, two rectangular holes are respectively formed in the inner wall of one side, away from the containing box, of the cavity, one ends of two moving rods are respectively and slidably installed on the inner wall of one side of the cavity, the other end of each moving rod penetrates through the rectangular holes and extends out of the fixed blocks, a plurality of limiting grooves are annularly formed in two sides of the handle at equal intervals, through holes are formed in the top side of the moving rods, vertical holes are formed in the inner wall of the bottom side of the cavity, a lead screw is rotatably installed on the inner wall of the top side of the cavity, and the bottom end of the lead screw penetrates through, and extend to outside the fixed block, the bottom fixed mounting of lead screw has the disc, and the top side of disc sets up threaded hole, and threaded hole internal thread installs the threaded rod.

Preferably, the inner wall of one side of the cavity is respectively provided with two sliding grooves, one side of the sliding block is arranged in the sliding grooves in a sliding mode, and the other side of the sliding block is fixedly arranged on the movable rod.

Preferably, two spouts keep away from the one end of equal fixedly connected with spring on the inner wall of one side each other, and the other end fixed connection of spring is on the slider.

Preferably, one side of each moving rod, which is close to each other, is fixedly provided with a limiting block, and the limiting blocks are matched with the limiting grooves.

Preferably, the screw rod is respectively sleeved with two screw rod guide sleeves, the peripheral outer walls of the screw rod guide sleeves are fixedly installed on the inner walls of the through holes, and the threads at the two ends of the screw rod are oppositely arranged.

Preferably, a plurality of rotation limiting grooves are annularly formed in the bottom side of the fixing block at equal intervals, and the rotation limiting grooves are matched with the threaded rods.

In the utility model, the portable current sensing device has the sensing device body placed in the containing box, and then can be carried conveniently through the two handles; when a user wants to rest, firstly, the threaded rod is screwed out of the rotation limiting groove, then the disc is rotated to drive the screw rod to rotate, then the two screw rod guide sleeves on the screw rod drive the two moving rods to slide, the limiting block is further moved out of the limiting groove, then the two handles are turned to the lower side of the containing box, finally, the screw rod is rotated to drive the limiting block to be clamped with the limiting groove again, the threaded rod is screwed into the rotation limiting groove, and then the user can sit on the containing box to rest;

the utility model provides a shortcoming among the prior art for people not only can carry bulky sensing device body, and two handles on the containing box can overturn down to warp for the chair moreover, so that the people that supply to tired have a rest.

Drawings

Fig. 1 is a schematic front view of a portable current sensing device according to the present invention;

fig. 2 is a schematic structural diagram of a portion a of a portable current sensing device according to the present invention;

fig. 3 is a schematic structural diagram of a1 part of a portable current sensing device according to the present invention.

In the figure: the device comprises a storage box 1, a sensing device body 2, a fixing block 3, a lifting handle 4, a cavity 5, a rectangular hole 6, a moving rod 7, a sliding chute 8, a sliding block 9, a spring 10, a limiting groove 11, a limiting block 12, a vertical hole 13, a screw rod 14, a screw rod guide sleeve 15, a disc 16, a threaded hole 17, a threaded rod 18 and a rotation limiting groove 19.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Example one

Referring to fig. 1-3, a portable current sensing device comprises a storage box 1, a sensing device body 2 is placed in the storage box 1, two fixed blocks 3 are respectively and fixedly installed on two sides of the storage box 1, a same handle 4 is rotatably installed on the two fixed blocks 3 in the horizontal direction, a cavity 5 is formed in the fixed blocks 3, two rectangular holes 6 are respectively formed in the inner wall of the cavity 5 far away from the storage box 1, one ends of two moving rods 7 are respectively and slidably installed on the inner wall of one side of the cavity 5, the other end of each moving rod 7 penetrates through the rectangular holes 6 and extends out of the fixed blocks 3, a plurality of limiting grooves 11 are annularly formed in two sides of the handle 4 at equal intervals, a through hole is formed in the top side of each moving rod 7, a vertical hole 13 is formed in the inner wall of the bottom side of the cavity 5, and a screw rod 14 is rotatably installed on the, and the bottom end of the screw rod 14 penetrates through the two through holes and the vertical hole 13 respectively and extends out of the fixed block 3, a disc 16 is fixedly installed at the bottom end of the screw rod 14, a threaded hole 17 is formed in the top side of the disc 16, and a threaded rod 18 is installed in the threaded hole 17 through threads.

The utility model discloses in, two spouts 8 have been seted up on the inner wall of cavity 5 one side respectively, and slidable mounting has one side of slider 9 in spout 8, and slider 9's opposite side fixed mounting is on carriage release lever 7, and spout 8 and slider 9 mutually support be for making carriage release lever 7 slide better.

The utility model discloses in, equal fixedly connected with spring 10's one end on the inner wall of one side is kept away from each other to two spouts 8, and spring 10's other end fixed connection is on slider 9, and spring 10 is in order to make carriage release lever 7 can reset fast.

The utility model discloses in, the equal fixed mounting in one side that two carriage release levers 7 are close to each other has stopper 12, and stopper 12 and spacing groove 11 looks adaptation, realizes fixing handle 4 through stopper 12 and spacing groove 11.

The utility model discloses in, two lead screw guide pin bushing 15 have been cup jointed on the lead screw 14 respectively, and lead screw guide pin bushing 15 outer wall fixed mounting is on the inner wall of through-hole all around, and the screw thread at 14 both ends of lead screw is opposite setting.

The utility model discloses in, a plurality of limit turn groove 19 has been seted up to the bottom side equidistant ring shape of fixed block 3, and limit

turn groove

19 and 18 looks adaptations of threaded rod, realizes through limit turn groove 19 and threaded rod 18 that the rotation to carousel 16 is fixed.

Example two

The utility model discloses in, two spouts 8 have been seted up on the inner wall of cavity 5 one side respectively, and slidable mounting has one side of slider 9 in spout 8, and the fixed welding of opposite side of slider 9 is on carriage release lever 7.

The utility model discloses in, equal fixed welding has the one end of spring 10 on the inner wall of one side is kept away from each other to two spout 8, and the fixed welding of the other end of spring 10 is on slider 9.

The utility model discloses in, the equal fixed welding in one side that two carriage release levers 7 are close to each other has stopper 12, and stopper 12 and spacing groove 11 looks adaptation.

The utility model discloses in, the bottom side of fixed block 3 is equidistant the annular dig be equipped with a plurality of limit groove 19, and limit groove 19 and threaded rod 18 looks adaptation.

In the utility model, the sensing device body 2 is placed in the containing box 1, and then the portable carrying can be realized through the two handles 4; if the people want to rest, firstly, the threaded rod 18 is screwed out of the limiting groove 19, then the disc 16 is rotated to drive the screw rod 14 to rotate, then the two moving rods 7 are driven by the two screw rod guide sleeves 15 on the screw rod 14 to slide, the limiting block 12 is further moved out of the limiting groove 11, then the two lifting handles 4 are turned to the lower side of the containing box 1, finally, the screw rod 14 is rotated to drive the limiting block 12 to be clamped with the limiting groove 11 again, the threaded rod 18 is screwed into the limiting groove 19, and then people can sit on the containing box 1 to rest.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The portable current sensing device comprises a storage box (1) and is characterized in that a sensing device body (2) is placed in the storage box (1), two fixed blocks (3) are respectively and fixedly mounted on two sides of the storage box (1), the two fixed blocks (3) in the horizontal direction are provided with a same handle (4) in a rotating mode, a cavity (5) is formed in the fixed blocks (3), two rectangular holes (6) are formed in the inner wall, far away from one side of the storage box (1), of the cavity (5), one ends of two moving rods (7) are respectively installed on the inner wall of one side of the cavity (5) in a sliding mode, the other ends of the moving rods (7) penetrate through the rectangular holes (6) and extend out of the fixed blocks (3), a plurality of limiting grooves (11) are annularly formed in two sides of the handle (4) at equal intervals, the through-hole has been seted up to the top side of carriage release lever (7), erect hole (13) have been seted up on the inner wall of cavity (5) bottom side, rotate on the inner wall of cavity (5) top side and install lead screw (14), and the bottom of lead screw (14) runs through two through-holes and erect hole (13) respectively to outside extending to fixed block (3), the bottom fixed mounting of lead screw (14) has disc (16), and the top side of disc (16) seted up threaded hole (17), and threaded rod (18) are installed to threaded hole (17) internal thread.

2. The portable current sensing device according to claim 1, wherein the inner wall of one side of the cavity (5) is respectively provided with two sliding grooves (8), one side of the sliding block (9) is slidably mounted in the sliding grooves (8), and the other side of the sliding block (9) is fixedly mounted on the movable rod (7).

3. The portable current sensing device according to claim 2, wherein one end of the spring (10) is fixedly connected to the inner wall of the two sliding grooves (8) on the side away from each other, and the other end of the spring (10) is fixedly connected to the sliding block (9).

4. The portable current sensing device according to claim 1, wherein a limiting block (12) is fixedly installed on one side of each of the two moving rods (7) close to each other, and the limiting block (12) is matched with the limiting groove (11).

5. The portable current sensing device according to claim 1, wherein the lead screw (14) is sleeved with two lead screw guide sleeves (15), the peripheral outer walls of the lead screw guide sleeves (15) are fixedly installed on the inner wall of the through hole, and the threads at the two ends of the lead screw (14) are oppositely arranged.

6. The portable current sensing device according to claim 1, wherein the bottom side of the fixed block (3) is provided with a plurality of rotation limiting grooves (19) at equal intervals in a ring shape, and the rotation limiting grooves (19) are matched with the threaded rod (18).