Distribution box door self-closing structure

Abstract

The utility model discloses a distribution box door self-closing structure, which belongs to the field of distribution boxes and is characterized in that channel iron I and channel iron II are arranged inside the distribution box door self-closing structure, so that the channel iron I and the channel iron II can be directly mounted on a box body and a box door respectively during mounting. When the box door is opened, the limiting piece can be automatically clamped on the gear connected with the rotating shaft, positioning at any opening angle is achieved, use is convenient, when the box door is closed, only the pull rod needs to be pulled to enable the limiting piece to be disengaged from the gear, the torsional spring can drive the second channel iron to reversely rotate and reset at the moment, and the effect of automatically closing the box door is achieved; after the box door is closed, traction of the limiting piece is released, clamping of the limiting piece and the gear can limit accidental opening of the second channel iron and the box door, the torsional spring can also support and limit the joint of the first channel iron and the second channel iron, accidental unfolding of the first channel iron and the second channel iron is avoided, and use safety is improved.

Description

Technical Field

[0001] The utility model relates to the field of distribution boxes, and more specifically to a self-closing structure for a door of a distribution box. Background Art

[0002] In modern electrical systems, the safety and reliability of the distribution box, as an important device for power distribution and control, are of vital importance. The self-closing structure of the distribution box door is a key component to ensure the normal operation and safety of the distribution box.

[0003] There are often some problems with the design of traditional distribution box doors. For example, some doors cannot be closed automatically when closed, and are easily opened accidentally due to external factors such as wind and vibration. This will not only affect the normal operation of the equipment inside the distribution box, but may also cause dust and moisture to enter the box, affecting the performance and life of electrical components, and even causing safety accidents such as accidental electric shock; in addition, although the self-closing structure of some box doors is reasonably designed, the installation of the rotating structure of the distribution box door according to different structural types is highly targeted, which is not convenient for retrofitting and using existing distribution boxes of various structural types that have been installed and put into use, so the applicability is poor. Therefore, we proposed a self-closing structure for the distribution box door to solve the above problems. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide a self-closing structure for the door of a distribution box. By arranging a slot iron 1 and a slot iron 2 inside the self-closing structure of the door, it is convenient to directly install the slot iron 1 and the slot iron 2 on the box body and the door respectively during installation. When opening the door, it can be opened according to normal steps. After opening, the limit piece can be automatically stuck on the gear connected to the rotating shaft to achieve positioning at any opening angle, which is convenient for use. Then, when closing the door, it is only necessary to pull the pull rod to cause the limit piece to disengage from the engagement with the gear. At this time, the torsion spring can drive the slot iron 2 to rotate in the opposite direction and reset, so as to achieve the purpose of closing the door. The box door has the effect of automatic closing, and the pull of the limit piece is released after the box door is closed. In addition to the engagement of the limit piece and the gear to limit the accidental opening of the slot iron 2 and the box door, the torsion spring can also support and limit the connection between the slot iron 1 and the slot iron 2 to prevent the slot iron 1 and the slot iron 2 from accidentally unfolding, thereby avoiding the risk of accidental electric shock caused by the box door being opened by external factors, and improving the safety of use. Since the overall structure of the box door self-closing structure is simple, the main connecting parts are the slot iron 1 and the slot iron 2, and it can be modified or installed for distribution box doors with different outward opening forms. It has strong applicability and is suitable for wide use.

[0006] 2. Technical solution

[0007] To solve the above problems, the utility model adopts the following technical solutions.

[0008] A self-closing structure for a distribution box door comprises a box body and a box door, wherein a self-closing structure for the box door is arranged on one side of a connection between the box body and the box door, and the self-closing structure for the box door comprises a slot iron 1 and a slot iron 2 respectively fixedly mounted on the box body and the box door by bolts, wherein one end of the slot iron 1 is provided with an opening, one end of the slot iron 2 extends into the inside of the opening, and a rotating shaft is fixedly mounted on one end of the slot iron 2, and two ends of the rotating shaft respectively penetrate through two sides of an outer wall of the slot iron 1, and gears are fixedly mounted on the ends of both ends of the rotating shaft, one side of the two gears are both engagedly connected with a limiting member, one end of the two limiting members are both rotatably connected with a positioning shaft, and the bottoms of the two positioning shafts are fixedly welded to one side of the corresponding outer wall of the slot iron 1.

[0009] Furthermore, a positioning pile 1 is fixedly welded on each of the two limiting members, a positioning pile 2 is fixedly welded on both sides of the outer wall of the channel iron 1, and the positioning pile 1 is connected to the corresponding positioning pile 2 via a tension spring.

[0010] Furthermore, a through hole is provided on the other end of the two limiting members, and the two through holes are rotatably connected by a pull rod.

[0011] Furthermore, torsion springs are sleeved on both ends of the rotating shaft at the connection between slot iron 1 and slot iron 2, and slot iron 1 and slot iron 2 corresponding to the position of the torsion spring are respectively provided with clamping hole 1 and clamping hole 2, and both ends of the torsion spring are respectively clamped with the corresponding inside of clamping hole 1 and clamping hole 2.

[0012] Furthermore, grooves are provided on the first positioning pile and the second positioning pile at the connection point of the tension spring, and the top of the rotating shaft does not contact the bottom of the tension spring.

[0013] 3. Beneficial effects

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] (1) In this scheme, slot iron 1 and slot iron 2 are arranged inside the self-closing structure of the box door, so that slot iron 1 and slot iron 2 can be directly installed on the box body and the box door respectively during installation. When opening the box door, it can be opened according to normal steps, and the limit member can automatically be stuck on the gear connected to the rotating shaft after opening, so as to achieve positioning at any opening angle, which is convenient for use. Then, when closing the box door, it is only necessary to pull the pull rod to cause the limit member to disengage from the engagement with the gear. At this time, the torsion spring can drive slot iron 2 to rotate in the opposite direction and reset, so as to achieve the effect of automatic closing of the box door, and release the pulling of the limit member after the box door is closed. In addition to the engagement of the limit member and the gear to limit the accidental opening of slot iron 2 and the box door, the torsion spring can also support and limit the connection between slot iron 1 and slot iron 2 to prevent slot iron 1 and slot iron 2 from accidentally unfolding, thereby avoiding the risk of accidental electric shock caused by the box door being opened due to external factors, thereby improving the safety of use;

[0016] (2) This solution has a simple overall structure of the self-closing door, and the main connecting parts are channel iron 1 and channel iron 2. It can be modified or installed for distribution box doors with different outward opening forms. It has strong applicability and is suitable for wide use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the installation of the self-closing structure of the door of the utility model;

[0018] Figure 2 This is a schematic diagram of the self-closing structure of the door of the utility model;

[0019] Figure 3 For the utility model Figure 2 The enlarged structural diagram at A in the middle;

[0020] Figure 4 It is a schematic diagram of the torsion spring connection structure of the utility model.

[0021] Description of the numbers in the figure:

[0022] 1. Box body; 2. Box door; 3. Box door self-closing structure; 4. Slot iron one; 401, clamping hole one; 5. Slot iron two; 501, clamping hole two; 6. Opening; 7. Rotating shaft; 8. Gear; 9. Limiting piece; 10. Positioning shaft; 11. Positioning pile one; 12. Positioning pile two; 13. Tension spring; 14. Pull rod; 15. Torsion spring. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention specification; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field without creative work based on the embodiments of the present invention are within the scope of protection of the present invention.

[0024] Embodiment 1:

[0025] See also Figure 1-Figure 4 A self-closing structure for a distribution box door, comprising a box body 1 and a box door 2, a box door self-closing structure 3 is arranged at one side of the connection between the box body 1 and the box door 2, the box door self-closing structure 3 comprises a slot iron 1 4 and a slot iron 2 5 respectively fixedly mounted on the box body 1 and the box door 2 by bolts, an opening 6 is opened at one end of the slot iron 1 4, one end of the slot iron 2 5 extends into the opening 6, and a rotating shaft 7 is fixedly mounted at one end of the slot iron 2 5, both ends of the rotating shaft 7 respectively penetrate the two sides of the outer wall of the slot iron 1 4, gears 8 are fixedly mounted on the ends of both ends of the rotating shaft 7, one side of the two gears 8 are both engaged and connected with a limiting member 9, one end of the two limiting members 9 are both rotatably connected with a positioning shaft 10, and the bottoms of the two positioning shafts 10 are fixedly welded to one side of the outer wall of the corresponding slot iron 1 4;

[0026] A positioning pile 11 is fixedly welded on each of the two limit members 9, and a positioning pile 2 12 is fixedly welded on both sides of the outer wall of the slot iron 4. The positioning pile 11 is connected to the corresponding positioning pile 2 12 through a tension spring 13. A through hole is provided on the other end of the two limit members 9, and the two through holes are rotatably connected through a pull rod 14. Torsion springs 15 are sleeved on both ends of the rotating shaft 7 located at the connection between the slot iron 1 4 and the slot iron 2 5. A clamping hole 401 and a clamping hole 501 are respectively provided on the slot iron 1 4 and the slot iron 2 5 at the position corresponding to the torsion spring 15, and the two ends of the torsion spring 15 are respectively clamped with the corresponding clamping hole 401 and the inside of the clamping hole 2 501.

[0027] The use principle of the self-closing structure of the distribution box door is:

[0028] First, the channel iron 1 4 and the channel iron 2 5 of the box door self-closing structure 3 are fixedly installed on the box body 1 and the box door 2 of the distribution box by bolts respectively (it should be noted that when the box door self-closing structure 3 is retrofitted to the existing distribution box that has been installed and put into use, it is necessary to first remove the box door 2 and cut off the hinge at the connection before installing the box door self-closing structure 3, so as to prevent the hinge connection structure before installation from interfering with the subsequent rotation of the box door 2). Then the box door 2 can be rotated outwards to open normally. During the opening process, the box door 2 is affected by the structure of the connection between the gear 8 and the limit member 9, and the box door 2 drives the channel iron 2 5, the rotating shaft 7 and the gear 8 to rotate, while the limit member 9 is continuously jumped, thereby completing the continuous engagement and positioning of the gear 8, so as to facilitate the positioning of the box door 2 at any unfolding angle after opening, and provide convenience for the maintenance and installation of the staff;

[0029] When the door 2 needs to be closed, it is only necessary to pull the pull rod 14 to cause the two connected limit members 9 to disengage from the corresponding gears 8. At this time, the torsion spring 15 rebounds and resets to cause the slot iron 5 to rotate in the opposite direction, causing the door 2 to close tightly, and then the pull on the pull rod 14 can be released.

[0030] Embodiment 2:

[0031] In view of the above embodiment 1, for further description, refer to Figure 4 , grooves are provided on the positioning pile 11 and the positioning pile 2 12 at the connection of the tension spring 13, and the top of the rotating shaft 7 does not contact the bottom of the tension spring 13.

[0032] By providing grooves on the positioning pile 11 and the positioning pile 2 12 at the connection of the tension spring 13, the top of the rotating shaft 7 does not contact the bottom of the tension spring 13, which can improve the structural stability of the two ends of the tension spring 13 hanging on the positioning pile 11 and the positioning pile 2 12, and avoid interference with the normal contraction of the tension spring 13 when the tension spring 13 overlaps the top of the rotating shaft 7;

[0033] After the box door 2 is closed, the pull of the limit member 9 is released. In addition to the engagement of the limit member 9 and the gear 8 to limit the accidental opening of the slot iron 2 5 and the box door 2, the torsion spring 15 can also support and limit the connection between the slot iron 1 4 and the slot iron 2 5 to prevent the slot iron 1 4 and the slot iron 2 5 from accidentally unfolding, thereby avoiding the risk of accidental electric shock caused by the box door 2 being opened due to external factors, thereby improving the safety of use.

[0034] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A self-closing structure for a distribution box door, comprising a box body (1) and a box door (2), characterized in that: A box door self-closing structure (3) is provided on one side of the connection between the box body (1) and the box door (2), and the box door self-closing structure (3) comprises a slot iron one (4) and a slot iron two (5) which are respectively fixedly mounted on the box body (1) and the box door (2) by bolts, one end of the slot iron one (4) is provided with an opening (6), one end of the slot iron two (5) extends into the inside of the opening (6), and one end of the slot iron two (5) is fixedly mounted with a rotating shaft (7), the two ends of the rotating shaft (7) respectively penetrate through the two sides of the outer wall of the slot iron one (4), and the ends of the two ends of the rotating shaft (7) are fixedly mounted with gears (8), one side of the two gears (8) are both engaged and connected with a limiting member (9), one end of the two limiting members (9) are both rotatably connected with a positioning shaft (10), and the bottom of the two positioning shafts (10) is fixedly welded to the corresponding side of the outer wall of the slot iron one (4).

2. The self-closing structure of a distribution box door according to claim 1, characterized in that: A positioning pile (11) is fixedly welded on each of the two limiting members (9), and a positioning pile (12) is fixedly welded on both sides of the outer wall of the channel iron (4), and the positioning pile (11) is connected to the corresponding positioning pile (12) via a tension spring (13).

3. The self-closing structure of a distribution box door according to claim 1, characterized in that: A through hole is provided on the other end of the two stoppers (9), and the two through holes are rotatably connected via a pull rod (14).

4. The self-closing structure of a distribution box door according to claim 1, characterized in that: Torsion springs (15) are sleeved on both ends of the rotating shaft (7) at the connection between the first slot iron (4) and the second slot iron (5), and a first clamping hole (401) and a second clamping hole (501) are respectively provided on the first slot iron (4) and the second slot iron (5) at the positions corresponding to the torsion spring (15), and the two ends of the torsion spring (15) are respectively clamped with the inside of the first clamping hole (401) and the second clamping hole (501).

5. The self-closing structure of a distribution box door according to claim 2, characterized in that: The first positioning pile (11) and the second positioning pile (12) at the connection point of the tension spring (13) are both provided with grooves, and the top of the rotating shaft (7) does not contact the bottom of the tension spring (13).

Images