KR200298713Y1 - Hinge having a function of a door stopper for a switchboard - Google Patents

Abstract

The present invention is for a switchgear door hinge with a stopper function to fix the open state of the switchboard door at a certain angle to prevent the door shake, which is hinged between the door of the switchboard and the switchboard case, Hinge fixing member is formed in the upper and lower end bolt holes are formed on the side frame side of the switchboard case, the shaft hole is formed in the central projection, the insertion hole penetrates through the vertical direction of the shaft hole from the rear surface, and the side bending of the door A hinge hole is formed in the upper and lower projections to be coupled to one side of the surface and axially coupled with the hinge fixing member, the hinge flow member is concave in the center portion to be coupled to the central projection of the hinge fixing member, the hinge fixing member and the hinge Coupled to the shaft hole of the flow member and the rotational angle of the hinge flow member A hinge shaft having at least one fixing groove formed along an outer circumferential surface of the center portion to be fixed at a predetermined angle, and a spring and the hinge for elastically supporting the hinge shaft fixing ball and the hinge side fixing ball in an insertion hole of the hinge fixing member; It characterized in that the fixing bolt to be inserted in order to prevent the separation of the shaft fixing ball and the spring. Therefore, according to the present invention, it is possible to reduce the installation cost of the switchboard door by preventing the shaking of the switchboard door during operation to improve the convenience of the operator, by integrating the hinge and the door stopper.

Description

Switchgear door hinges with stopper function {Hinge having a function of a door stopper for a switchboard}

The present invention relates to a door hinge, and more particularly to a switchgear door hinge having a stopper function that can be fixed to a certain angle in the open state of the switchgear door to prevent the shaking of the door during operation and improve the convenience of the operator.

In general, a switchboard is a device installed in a power plant, substation, or a building equipped with various electric facilities to facilitate opening and closing of a converter or controlling electric devices connected thereto. There are various indicator lights and instruments arranged, the load is considerable. Therefore, the door of the switchboard generally uses a hinge of a rigid structure to withstand large loads, and is equipped with a door stopper so as not to interfere with work by the shaking of the door by the body contact of the operator.

1 is a perspective view showing an installation structure of a switchboard door equipped with a conventional door stopper. The switchboard S shown in FIG. 1 is configured to be opened and closed by a worker's physical force by installing a door D hinged by the hinge 10 on the front of the switchboard case F formed of a plurality of frames. One end of the first rotating bar 11 is hinged to the inner side of the upper panel of the switchboard case F, and the second side of the second rotating bar 12 is parallel to the first rotating bar 11 on the inner side of the door D. FIG. One end is hinged, and the other end of the second pivoting bar 12 is axially coupled through the hinge shaft 13 at a point spaced from the other end of the first pivoting bar 11 to form a door stopper.

In addition, in FIG. 1, the second pivoting bar 12 is configured such that a pair of rod pieces 12a and 12b having the same length and shape are axially coupled to the hinge shafts 13 and 14 at a predetermined distance, respectively. The first rotating bar 11 has a hemispherical fixing protrusion 15 protruding on both sides of the other end thereof, and the second rotating bar 12 has a protruding fixture 16 on an inner side of the hinge shaft 13 at a predetermined distance. Is formed is configured to be coupled to the fixing projections 15 when the rotation angle of the door (D) at a predetermined angle.

Therefore, when the door D of the switchboard S is rotated at a predetermined angle, the fixing protrusion 15 of the first rotating bar 11 is inserted into the protrusion fixing member 16 of the second rotating bar 12 to open the door D. ) To prevent the door D from shaking due to the worker's body contact. However, when the switchboard door is installed in the above structure, the hinge for turning the switchboard door and the door stopper for fixing the door must be separately installed. There is a problem that the installation cost of the excessively required, the installation work is also not easy.

Accordingly, the present invention has been devised in view of the above circumstances, and provides a switchgear door hinge with a stopper function which can reduce the installation cost of the switchboard door by improving the hinge and the door stopper and improve the operator's convenience. Has its purpose.

1 is a perspective view showing the installation structure of a switchboard door equipped with a conventional door stopper.

Figure 2 is a perspective view showing the appearance of the switchboard to which the present invention is applied.

Figure 3 is a perspective view showing the external structure of the switchgear door hinge with a stopper function according to an embodiment of the present invention.

Figure 4 is an exploded perspective view showing the installation structure of the switchgear door hinge with a stopper function according to an embodiment of the present invention.

5 is a rear view showing the rear structure of the hinge fixing member shown in FIG.

Figure 6 is an operating state diagram for explaining the operating state of the switchgear door hinge with a stopper function according to an embodiment of the present invention.

*** Explanation of symbols for the main parts of the drawing ***

10, 20: hinge, 11: first pivot bar,

12: second pivot bar, 13, 22: hinge axis,

15: fixing projection, 16: projection fixing fixture,

21: hinge fixing member, 22a: fixing groove,

22b: locking projection, 23: hinge flow member,

24: center projection, 24a, 28a, 29a: shaft ball,

25: hinge shaft fixing ball, 26: spring,

27: fixing bolt, 27a: spring insertion groove,

28: upper protrusion, 29: lower protrusion,

S: switchboard, F: switchboard case,

D: Door.

The switchgear door hinge with a stopper function according to the present invention for achieving the above object is a hinge installed between the door of the switchboard and the switchboard case, the upper and lower ends to be coupled to the side frame side of the switchboard case by bolts. A bolt hole is formed, and a shaft hole is formed in the central protrusion, and a hinge fixing member having an insertion hole penetrated in the vertical direction of the shaft hole from the rear surface thereof is coupled to one side of the side bent surface of the door by bolts and axially coupled to the hinge fixing member. A shaft hole is formed in each of the lower protrusions, and a hinge flow member having a concave center portion is coupled to a shaft hole of the hinge fixing member and the hinge flow member so as to be coupled to the central protrusion of the hinge fixing member, and the rotation angle of the hinge flow member is predetermined. At least one fixing groove is formed along the outer circumferential surface of the center portion to fix it at an angle. The hinge shaft has a hinge shaft, and a spring for supporting the hinge shaft fixing ball and the hinge side fixing ball and a bolt for fixing the hinge shaft fixing ball and the spring are inserted in the insertion hole of the hinge fixing member in order. Characterized in that configured.

Therefore, according to the above configuration, by fixing the open state of the switchboard door at a certain angle to prevent the shaking of the door during the operation and the installation of a separate door stopper is not required, it is possible to reduce the installation cost of the switchboard door.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

Figure 2 is a perspective view showing the appearance of the switchboard (S) to which the present invention is applied, the switchboard (S) of Figure 2 is a switchboard case (F) and the door (D) formed in a frame structure at least two or more hinges 20 Is hinged through it is configured to open and close the door (D) by the physical force of the operator. And although not shown in Figure 2, the switchboard door (D) is installed on the front or rear a number of indicators and various instruments indicating the operation state of the switchboard, and is robust to protect the switchboard (S) from external impact or fire Made of steel structure. In addition, since the load of the door (D) reaches several tens of kilograms in the case of the switchboard (S) provided in the substation or power plant, the hinge 20 according to the present invention is molded and manufactured to withstand the load of the door (D) .

Figure 3 is a perspective view showing the external structure of the switchgear door hinge with a stopper function according to an embodiment of the present invention, which is an enlarged view of the hinge 20 shown in FIG. The hinge 20 shown in FIG. 3 is a hinge fixing member 21 fixed to one side of the side frame of the switchboard case F, and fixed to one side surface of the door D and fixed to the hinge through the hinge shaft 22. The hinge flow member 23 is axially coupled with the hinge 21 to rotate along the hinge shaft 22 when the door D is opened and closed, and the hinge fixing member 21 and the hinge flow member 23 are axially coupled to each other. It comprises a hinge shaft 22 for fixing the rotation angle of the hinge flow member 23 at a predetermined angle.

Hereinafter, an embodiment of the present invention will be described in more detail with reference to FIGS. 4 to 6. Figure 4 is an exploded perspective view showing the installation structure of the switchgear door hinge 20 with a stopper function according to the present invention, Figure 5 shows a rear view of the hinge fixing member 21. 4 to 6, the same components as those shown in FIG. 3 will be denoted by the same reference numerals.

First, as shown in FIG. 4, the switchboard case F and the hinge fixing member 21 and the door D and the hinge flow member 23 are fixed by bolts B1 and B2, respectively. A plurality of through holes H1 and H2 are formed at one side of the bent surface FB, and a plurality of through holes H3 and H4 are formed by bending one side of the door D. In addition, in FIG. 4, at least one center hole CH1 and CH2 for designating an installation position of the hinge fixing member 21 is formed in the vicinity of the through holes H1 and H2 of the switchboard case F.

4, bolt holes 21a and 21b are formed at upper and lower portions of the hinge fixing member 21 to be coupled to the through holes H1 and H2 of the switchboard case F and the bolts B1 and B2. The central protrusion 24 is provided with a shaft hole 24a to receive the hinge shaft 22. Although not shown in FIG. 4, the rear surface of the hinge fixing member 21 penetrates in the vertical direction of the shaft hole 24a to be connected to the shaft hole 24a and the center hole of the switchboard case F. Center protrusions (21c, 21d of FIG. 5) are inserted into the CH1 and CH2, and the hinge hole fixing ball 25 and a spring 26 for elastically supporting the insertion hole 24b are inserted therein. A fixing bolt 27 having a spring insertion groove 27a formed thereon is bolted to the insertion hole 24b to prevent the hinge shaft fixing ball 25 and the spring 26 from being separated.

4, bolt holes 23a and 23b are formed on the rear surface of the hinge flow member 23 so as to be coupled to the through holes H3 and H4 of the door D by bolts, and the hinge shaft 22 is formed. Upper and lower protrusions 28 and 29 are provided with shaft holes 28a and 29a for receiving. And as shown in Figure 4 the center portion of the hinge flow member 23 is formed concave so that the hinge flow member 23 when the central projection 24 of the hinge fixing member 21 is located in the center of the hinge flow member 23 The shaft holes 24a, 28a, and 29a formed in the upper and lower protrusions 28 and 29 of the center and the central protrusion 24 of the hinge fixing member 21 are arranged in a row.

In addition, in the hinge shaft 22, at least one fixing groove 22a is formed along the outer circumferential surface of the center portion to fix the hinge shaft fixing ball 25 inserted into the hinge fixing member 21 at a predetermined rotational angle. Let's go. Therefore, the hinge shaft 22 fixes the door D at a predetermined rotational angle. The depth of the fixing groove 22a is such that the hinge shaft fixing ball 25 is not separated from the fixing groove 22a by external force of weak strength, such as the body contact of the worker with the door D, and the door D It is preferable that the hinge shaft fixing ball 25 is set so as to be separated when an external force is applied.

In addition, in the hinge shaft 22 of FIG. 4, a locking protrusion 22b is formed at an upper portion thereof, and a locking jaw (not shown) is formed at an upper end of the shaft hole 28a of the upper protrusion 28 so that the locking protrusion 22b is formed. The hinge shaft 22 prevents the departure. And although not shown in Figure 4, when the hinge jaw of the same shape is formed in the lower end of the shaft hole (29a) of the lower projection (29) when installing the hinge 20 upside down to install the hinge 20 on the right side of the switchboard case (F) It becomes possible.

6 is an operational state diagram for explaining the operating state of the switchgear door hinge 20 with a stopper function according to the present invention, which shows a cross-sectional structure of the point A-A 'of FIG. 6A illustrates a state in which the door D is closed, (B) a free rotation of the door D, and (C) illustrates a state in which the rotation of the door D is fixed.

That is, Figure 6 (a) is the same state as Figure 2 in this case the hinge shaft fixing ball 25 inserted into the hinge fixing member 21 is in close contact with the outer peripheral surface of the hinge shaft 22 by the elastic force of the spring (26) Will remain intact. Then, when the operator opens the door D by applying a certain external force, the hinge 20 is rotated in a state as shown in (b) of FIG. 6, but the hinge shaft fixing ball 25 is the fixing groove 22a of the hinge shaft 22. ), The rotation of the door D is free. Then, when the operator opens the door D to a predetermined rotation angle, the hinge shaft fixing ball 25 is seated and fixed in the fixing groove 22a of the hinge shaft 22 as shown in FIG. (D) is fixed at the position until a predetermined external force is applied to prevent the shaking of the door (D) during operation.

In this embodiment, one fixing groove is disposed on the hinge shaft, but it is also possible to have a plurality of fixing grooves in accordance with the rotation angle to be fixed. In addition, it may be desirable to arrange a plurality of fixing grooves in a row in the axial direction of the hinge shaft, and install a plurality of hinge shaft fixing balls in a row so as to correspond to each of the fixing grooves in the hinge fixing member to set the fixing force of the door stronger.

As described above, according to the present invention, the opening state of the switchboard door is fixed at an angle to prevent the shaking of the door during operation, thereby improving the convenience of the operator, and reducing the installation cost of the switchboard door by integrating the hinge and the door stopper. It will be possible to provide switchboard door hinges with a stopper function.

Claims (3)

In the hinge hinged between the door of the switchboard and the switchboard case, Hinge fixing member is formed in the upper and lower ends of the bolt hole is formed on the side frame side of the switch panel case, the shaft hole is formed in the central projection, the insertion hole penetrates in the vertical direction of the shaft hole from the rear surface, Hinge flow member is coupled to one side of the side of the bending surface of the door and the shaft hole is formed in the upper and lower projections to be coupled to the hinge fixing member, respectively, and the central portion of the hinge fixing member to be coupled to the central projection of the hinge fixing member, A hinge shaft axially coupled to the shaft hole of the hinge fixing member and the hinge flow member and having at least one fixing groove formed along an outer circumferential surface of the center portion to fix the rotation angle of the hinge flow member at a predetermined angle; A stopper, characterized in that the insertion hole of the hinge fixing member is configured to sequentially install a hinge shaft fixing ball and a spring for elastically supporting the hinge side fixing ball and a fixing bolt for preventing the hinge shaft fixing ball and the spring from being separated. Switchgear door hinges with features. The method of claim 1, The hinge shaft is formed with a locking projection on the top, Switchgear door hinges with a stopper function, characterized in that the locking projection is formed in the hinge flow member the upper end of the shaft hole of the upper projection and the lower end of the shaft hole of the lower projection. The method of claim 1, At least one center hole is formed at one side of the side frame of the switchboard case to designate an installation position of the hinge fixing member. A switchboard door hinge with a stopper function, characterized in that a center protrusion corresponding to the center hole is formed on a rear surface of the hinge fixing member.