CN210224701U

CN210224701U - Burden accuse case with adjustable vent

Info

Publication number: CN210224701U
Application number: CN201921346128.8U
Authority: CN
Inventors: Baohua Cheng; 程保华; Yunfeng Liu; 刘云峰
Original assignee: ZHEJIANG BAOSHUN ELECTRIC Co Ltd
Current assignee: ZHEJIANG BAOSHUN ELECTRIC Co Ltd
Priority date: 2019-08-20
Filing date: 2019-08-20
Publication date: 2020-03-31
Anticipated expiration: 2029-08-20

Abstract

The utility model discloses a burden accuse case with adjustable vent, have the burden accuse case of vent including the side, relate to burden accuse case technical field. A fixed sector plate and a movable sector plate are arranged in the ventilation opening; the fixed fan-shaped plate is fixed in the vent and comprises a plurality of first fan blades which are uniformly spaced, and a semi-opening area is formed between every two adjacent first fan blades; the activity sector plate is located one side of fixed sector plate and can rotates around the center, and activity sector plate includes a plurality of second flabellums that the interval is even, the distribution of second flabellum is equated with the distribution of first flabellum, and along with the rotation of activity sector plate, the vent is in the complete closure with half the regional switching of opening and shutting. The utility model discloses a vent area that opens and shuts's controllability can guarantee the radiating effect under the operating condition, can prevent off operating condition again under, the dust gets into burden accuse case by the vent.

Description

Burden accuse case with adjustable vent

Technical Field

The utility model relates to a burden accuse case technical field especially relates to burden accuse case with adjustable vent.

Background

In the electric power transmission process, the load control box is connected when needed, and the control of electric power load transmission is facilitated. And burden accuse case need dispel the heat to internal components and parts in the use, and current louvre structure is many directly to begin the through-hole, then installs the filter screen, can not adjust the size of vent, also can't cover completely simultaneously and protect, gets into the dust easily when out of work, produces the harm to the electronic component in the burden accuse case.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a burden accuse case with adjustable vent realizes the controllability of vent area that opens and shuts, can guarantee the radiating effect under the operating condition, can prevent again that under the out-of-operation condition, the dust gets into burden accuse case by the vent.

In order to achieve the above object, the utility model provides a following technical scheme:

a negative control box with an adjustable ventilation opening comprises a negative control box with a ventilation opening on the side surface, and is characterized in that a fixed sector plate and a movable sector plate are installed in the ventilation opening; the fixed fan-shaped plate is fixed in the vent and comprises a plurality of first fan blades which are uniformly spaced, and a semi-opening area is formed between every two adjacent first fan blades; the activity sector plate is located one side of fixed sector plate and can rotates around the center, and activity sector plate includes a plurality of second flabellums that the interval is even, the distribution of second flabellum is equated with the distribution of first flabellum, and along with the rotation of activity sector plate, the vent is in the complete closure with half the regional switching of opening and shutting.

Furthermore, a rotating shaft extending towards one side of the movable sector plate is fixedly installed in the middle of the fixed sector plate, and a rotating ring is arranged in the middle of the movable sector plate and sleeved on the rotating shaft to freely rotate around the rotating shaft.

Furthermore, the front end of the rotating shaft is a threaded head, and a top-tightening nut is connected to the threaded head.

Furthermore, a friction plate is fixedly installed on one side, facing the fixed sector plate, of the rotating ring.

Further, the friction plate is an annular friction plate.

Furthermore, a plurality of fixing mechanisms are arranged on the rear side of the negative control box, and each fixing mechanism comprises a groove and a hinge block on the negative control box; the first end of the hinged block is hinged in the groove, the second end of the hinged block rotates around the hinged point to rotate out of the groove, and the second end of the hinged block is provided with a mounting hole.

Furthermore, be provided with the locating lever in the recess, when the second end of articulated piece was around to the recess in, the locating lever passed the mounting hole and fixes a position articulated piece.

Furthermore, the surface of the positioning rod is provided with a flexible positioning sheet.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a fixed sector plate forms the region of partly opening and shutting, through rotating movable sector plate, the vent switches between the region of sealing completely and partly opening and shutting in addition. When the negative control box works, the negative control box is in a semi-open and semi-closed area state, and the inside and outside ventilation effects of the negative control box are achieved. When the electric control box does not work, the movable fan-shaped plate rotates to a completely closed state, so that external dust can be prevented from entering the negative control box and damaging electronic elements in the negative control box.

Drawings

Fig. 1 is a schematic view of an overall structure of an embodiment of the present invention.

Fig. 2 is a partial cross-sectional view of an embodiment of the present invention.

Fig. 3 is an assembly view of the movable sector plate and the rotating ring according to an embodiment of the present invention.

Fig. 4 is a sectional view a-a of fig. 1.

In the figure: 1. a load control box; 11. a vent; 12. fixing the sector plate; 13. a movable sector plate; 14. a rotating shaft; 15. a rotating ring; 16. a friction plate; 17. folding edges; 2. a screw head; 21. tightening the top nut; 3. a groove; 31. a hinge point; 32. a hinged block; 33. mounting holes; 34. positioning a rod; 35. a flexible locating plate.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 and 2, the present invention provides a load control box with adjustable ventilation openings, which includes a load control box 1 with a ventilation opening 11 on a side surface. A fixed sector plate 12 and a movable sector plate 13 are arranged in the ventilation opening 11; the fixed sector plate 12 is fixed in the vent and includes a plurality of first fan blades evenly spaced, a half-open area is formed between two adjacent first fan blades, in this embodiment, the number of the first fan blades is 3, and the shape of the first fan blades is the same as that of the half-open area. The movable sector plate 13 is located the front side or the rear side of fixed sector plate and the movable sector plate 13 can rotate around the center, and the movable sector plate 13 includes a plurality of second flabellums that the interval is even, the distribution of second flabellum is equal with the distribution of first flabellum, and along with the rotation of movable sector plate 13, the coincidence area of second flabellum and first flabellum changes and makes the vent switch between the area of totally enclosed and half-open and close. When the negative control box is in a working state, the movable sector plate 13 is rotated to be completely superposed with the fixed sector plate, at the moment, the ventilation opening is in a semi-opening state, and ventilation can be realized inside and outside the negative control box; when the negative control box is not in a working state, the movable sector plate 13 is rotated to coincide with a half-opening area, and at the moment, the vent is completely closed, so that external dust is prevented from entering the negative control box, and elements in the negative control box are protected.

In order to realize the installation of the movable sector plate, a rotating shaft 14 extending to one side of the movable sector plate 13 is fixedly installed at the middle part of the fixed sector plate 12, referring to fig. 3, a rotating ring 15 is fixedly installed at the middle part of the movable sector plate 13, the rotating ring 15 is sleeved on the rotating shaft 14 and freely rotates around the rotating shaft 14, so that the movable sector plate 13 rotates relative to the fixed sector plate 12.

In order to prevent the movable sector plate 13 from being separated from the front end of the rotating shaft 14, the front end of the rotating shaft 14 is a threaded head 2, and a top-tightening nut 21 is connected to the threaded head 2. It is worth mentioning that a friction plate 16, in particular an annular friction plate, is fixedly mounted on the side of the rotating ring 15 facing the stationary sector plate 12. After the rotation angle of the movable sector plate 13 is determined, the top nut 13 is screwed, and the friction plate 16 is tightly attached to the fixed sector plate 12, so that the friction force can be provided to prevent the sliding of the movable sector plate 13.

In order to fix the negative control box on the wall body, bolts are generally adopted for fixing, the fixing piece is generally directly welded on the surface of the negative control box, the occupied space of the negative control box is sharply increased due to the irregular surface of the negative control box, and a great deal of inconvenience is brought to transportation and storage. Therefore, the present embodiment designs a fixing mechanism that can be hidden, please refer to fig. 1 and fig. 4, the rear side of the negative control box 1 is provided with a plurality of fixing mechanisms, and the fixing mechanisms include a groove 3 and a hinge block 32 on the negative control box 1; the first end of the hinge block 32 is hinged at the hinge point 31 in the groove 3, the second end of the hinge block 32 rotates around the hinge point 31 to rotate out of the groove 3, and the second end of the hinge block 32 is provided with a mounting hole 33. When the load control box is installed, only a plurality of hinged blocks 32 need to be turned to the outer side, and bolts are screwed into the wall body through the mounting holes 33 to achieve fixing.

In order to secure the hinge block 32 in the recess 3 against rotation due to jolts during transport. A positioning rod 34 is arranged in the groove 3, and when the second end of the hinge block 32 winds into the groove 3, the positioning rod 34 penetrates through the mounting hole 33 to position the hinge block. In order to further enhance the restraining effect, the surface of the positioning rod 34 is provided with a flexible positioning plate 35, and the orientation of the flexible positioning plate 35 is opposite to the movement direction of the hinge block 32 rotating out of the groove.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A negative control box with an adjustable ventilation opening comprises a negative control box with a ventilation opening on the side surface, and is characterized in that a fixed sector plate and a movable sector plate are installed in the ventilation opening; the fixed fan-shaped plate is fixed in the vent and comprises a plurality of first fan blades which are uniformly spaced, and a semi-opening area is formed between every two adjacent first fan blades; the activity sector plate is located one side of fixed sector plate and can rotates around the center, and activity sector plate includes a plurality of second flabellums that the interval is even, the distribution of second flabellum is equated with the distribution of first flabellum, and along with the rotation of activity sector plate, the vent is in the complete closure with half the regional switching of opening and shutting.

2. The negative control box with the adjustable ventilation opening as claimed in claim 1, wherein a rotation shaft extending to one side of the movable sector plate is fixedly installed at the middle part of the fixed sector plate, and a rotation ring is installed at the middle part of the movable sector plate, and is sleeved on the rotation shaft and freely rotates around the rotation shaft.

3. The negative control box with the adjustable ventilation opening of claim 2, wherein the front end of the rotating shaft is a threaded head, and a top nut is connected to the threaded head.

4. The vent-adjustable negative control box of claim 3, wherein a friction plate is fixedly mounted on a side of the rotating ring facing the fixed sector plate.

5. The vent-adjustable negative control box of claim 4, wherein the friction plate is an annular friction plate.

6. The negative control box with the adjustable ventilation opening of claim 1, wherein a plurality of fixing mechanisms are arranged on the rear side of the negative control box, and each fixing mechanism comprises a groove and a hinge block on the negative control box; the first end of the hinged block is hinged in the groove, the second end of the hinged block rotates around the hinged point to rotate out of the groove, and the second end of the hinged block is provided with a mounting hole.

7. The negative control box with the adjustable ventilation opening of claim 6, wherein a positioning rod is arranged in the groove, and when the second end of the hinge block is wound into the groove, the positioning rod passes through the mounting hole to position the hinge block.

8. The vent-adjustable load control box of claim 7, wherein a surface of the positioning rod is provided with a flexible positioning plate.