KR20210141084A - Stopper hinge with multistage degree of opening - Google Patents

Abstract

The present invention relates to a stopper-type hinge with a multi-stage opening angle function which improves a structure of a door hinge so that an opening and closing angle of the door can be adjusted in a plurality of step stages according to convenience of an operator. For example, in case of a power distribution work, a structure of the stopper-type hinge is improved so that an opening angle of a switchboard door can be continuously maintained during an operation of the operator.

Description

Stopper-type hinge with multi-stage opening angle function {STOPPER HINGE WITH MULTISTAGE DEGREE OF OPENING}

The present invention relates to a stopper-type hinge having a multi-stage opening angle function, and more particularly, it can be employed in a switchgear door hinge, etc., and the opening and closing angle of the door can be adjusted by a plurality of step steps according to the convenience of the operator. It relates to a stopper-type hinge having a multi-stage opening angle function whose structure is improved so that the opening angle of the door can be maintained continuously during the operation of the operator.

In general, a switchboard is a device installed in a power plant, a substation, or a building equipped with various electrical facilities to facilitate opening and closing of a circuit or control of an electric device connected thereto. Various electric devices such as circuit breakers sent for use are installed inside the housing.

The electric device includes an air circuit breaker (ACB), a power capacitor, a circuit breaker, and the like, and a door is installed outside to protect it, and a door lock is installed on the door.

Various indicators and instruments are arranged in the door of this switchboard, and the load is considerable. Therefore, the door of the switchboard generally uses a hinge of a sturdy structure to withstand a large load, and a door stopper is installed so that the work is not disturbed by the shaking of the door due to the physical contact of the operator.

Such a door is connected to the housing to open and close, and a hinge is installed. Since the hinge connecting the door and the housing is exposed to the outdoors, the external environment, that is, rain, snow, wind, high temperature in summer or low in winter The opening/closing operation should be performed smoothly even at temperature.

However, when the door installed in the overall distribution box as described above is opened and worked in bad weather such as strong wind, typhoon, or rain and wind, the door keeps closing, making it very difficult for the operator to work. Due to this, there was a problem that work efficiency was lowered or it was impossible to work. There was a problem that a safety accident occurred.

Conversely, when the door is installed strongly to prevent the door from being closed, the worker cannot easily open the door, resulting in a delay in work time.

As a prior art related to the existing switchboard door hinge, as disclosed in Korean Utility Model Publication No. 20-0298713 "Switchboard door hinge with stopper function" (Registration date: 2002.12.09), between the switchboard door and switchboard case In the hinge installed on the hinge, bolt holes are formed on the upper and lower ends so as to be bolted to one side of the side frame of the switchboard case, a shaft hole is formed in the central protrusion, and an insertion hole in the vertical direction of the shaft hole from the rear surface is fixed. A member and a hinge flow member coupled with a bolt to one side of the curved side of the door and having shaft holes formed in the upper and lower protrusions, respectively, so as to be axially coupled with the hinge fixing member, and having a concave central portion so as to be coupled with the central protrusion of the hinge fixing member. and a rotation shaft which is axially coupled to the shaft hole of the hinge fixing member and the hinge flow member and has at least one fixing groove formed along the outer circumferential surface of the central part to fix the rotation angle of the hinge flow member at a predetermined angle, the hinge In the insertion hole of the fixing member, a spring for elastically supporting the rotation shaft fixing ball and the hinge-side fixing ball, and a fixing bolt for preventing separation of the rotation shaft fixing ball and the spring are sequentially inserted and installed.

As another prior art related to the existing switchboard door hinge, as disclosed in Korean Utility Model Publication No. 20-2016-0002615 "Hinge for distribution panel equipped with elastic means" (published date: 2016.07.26), the housing and In the general distribution hinge that is fixed between the doors and used when opening and closing the door, the fixed body portion is provided with a body connected to and fixed to the housing and provided with a coupling body having a hinge hole on one side of the body Wow; a rotating body part connected to and fixed with the door, comprising a body having a coupling part so as to be coupled to the coupling body, and comprising an upper body formed on the upper part of the body and a lower body formed on the lower part of the body to rotate; and a hinge pin provided to connect and fix the defective body of the fixed body part and rotate the rotating body part, wherein the hinge hole of the fixed body part is provided with an elastic adjustment fixing groove, and is fitted to the hinge hole and is coupled to the door of the door. It will include a resilient means installed to differently adjust the opening and closing force when opening and closing.

However, while the existing switchboard door hinges have different opening and closing angles of the doors that the operator wants depending on the power distribution work, the existing switchboard door hinges mostly have only a function of supporting the rotational operation to simply open and close the door, and open and close a certain amount. Even if there is a door hinge with a function of maintaining an angle, the structure is complicated, manufacturing cost is high, and the opening and closing angle is limited.

Korean Utility Model Publication No. 20-0298713 "Switchboard door hinge with stopper function" (Registration date: 2002.12.09) Korean Utility Model Publication No. 20-2016-0002615 "Hinge for general distribution with elastic means" (published on July 26, 2016)

The present invention was created to solve the above problems in view of the various problems, and its purpose is to improve the structure of the switchgear door hinge so that the opening and closing angle of the door can be adjusted in a plurality of step steps according to the convenience of the operator, and the power distribution of the operator An object of the present invention is to provide a stopper-type hinge having an improved multi-stage opening angle function so that the opening angle of the door can be continuously maintained during operation.

The present invention for achieving the above object is coupled to be fixed to the side wall of the switchboard case in a bolting coupling method, and enters into the receiving groove of the rotating body at the front of the fixed hinge body is axially coupled to the rotating shaft; a rotating body coupled to a side surface of the switchboard door, a receiving groove formed into which the fixed hinge body is fitted, and a rotating shaft to which the fixed hinge body is rotatably coupled; Step means for maintaining the opening and closing angle of the switchboard door in a plurality of steps when the switchboard door is rotated;

The step means has a plurality of fitting grooves respectively concavely formed on one side of the fixed hinge body and spaced apart from each other, and a portion of the first receiving hole formed to communicate with the receiving groove on one side of the rotating body. A first ball bearing accommodated and selectively coupled to one of the plurality of fitting grooves, a first spring member elastically supporting the first ball bearing toward the receiving groove in the first receiving hole, and in the first receiving hole It is characterized in that provided with a first support bolt for supporting the first spring member.

The step means includes a plurality of locking grooves formed concavely on the other side of the fixed hinge body and spaced apart from each other, a second receiving hole formed on the other side of the rotating body to communicate with the receiving groove, and the rotating body A second ball bearing partially accommodated in a second accommodating hole formed to communicate with the accommodating groove on the other side of the second ball bearing and selectively coupled to one of the plurality of locking grooves, and the second ball bearing in the second accommodating hole A second spring member for elastically supporting the receiving groove side, and a second support bolt for supporting the second spring member in the second receiving hole.

The fixed hinge body is further provided with a display part painted in a band shape to indicate that the hinge is capable of step-by-step operation around the outer peripheral surface.

The fitting groove is composed of first, second, third, and fourth fitting grooves spaced apart from each other so that the opening and closing angle of the switchboard door is locked and coupled to the first ball bearing at regular angles.

The present invention can open the switchboard door at a selected angle and maintain the opening angle by selecting a desired angle among a plurality of opening angles by an operator using a step means during the power distribution operation. It can be adjusted step by step, and it is possible to continuously maintain the opening angle of the door during the power distribution operation of the operator, thereby having a useful advantage of easily performing the switchboard operation.

The present invention has the advantage of being able to maintain the opening angle of the switchboard door step by step through the fitting groove and the locking groove, so that the opening angle suitable for the power distribution operation can be arbitrarily selected, thereby increasing the convenience of use.

And the present invention is a step hinge provided with step means so that the operator can open the switchboard door step by step as the display part painted in the form of a band is further provided to indicate that the hinge is capable of step-by-step operation around the outer circumferential surface of the fixed hinge body. This can be displayed externally, improving the convenience of the operator.

1 is a perspective view showing an embodiment of a stopper-type hinge having a multi-stage opening angle function according to the present invention.
Figure 2 is an exploded perspective view of the rotating body of the present invention.
Fig. 3 is a plan view of Fig. 2;
Figure 4 is a perspective view of the present invention fixed hinge body.
Fig. 5 is a plan view of Fig. 4;
6 is a cross-sectional view showing the coupling state of the rotating body and the fixed hinge body of the present invention.
7 is a perspective view showing another embodiment of a stopper-type hinge having a multi-stage opening angle function according to the present invention.
8 is a cross-sectional view of the coupled state of FIG.
9 is a use state diagram showing a multi-stage opening angle of the switchboard door of the present invention.

In describing the present invention, if it is determined that a detailed description of a related known technology or configuration may unnecessarily obscure the gist of the present invention, a detailed description thereof will be omitted. And the terms to be described later are terms defined in consideration of functions in the present invention, and may vary according to the intention or custom of the user. Therefore, the definition should be made based on the content throughout this specification. In addition, 'including' a certain component means that other components may be further included, rather than excluding other components, unless otherwise stated.

The stopper-type hinge having a multi-stage opening angle function of the present invention can be applied to door hinges in various fields. Hereinafter, a door hinge for a switchboard will be described as an example.

When the stopper-type hinge having a multi-stage opening angle function according to the present invention is described with reference to FIGS. 1 to 6 , it is coupled to the side wall of the switchboard case 10 by a bolting coupling method, and the rotating body 100 on the front side. a fixed hinge body 200 which is entered into the receiving groove 105 of the rotation shaft 150 and is axially coupled; It is coupled to the side of the switchboard door 20, a receiving groove 105 into which the fixed hinge body 200 is fitted is formed, and the fixed hinge body 200 is rotatably coupled with a rotation shaft 150. a body 100; and step means for maintaining the opening and closing angle of the switchboard door 20 in a plurality of steps when the switchboard door 20 is rotated.

1 and 2, the rotating body 100 has a structure in which the upper and lower blocks 102 and 104 are symmetrically connected to each other through the middle connection part 106 in which the receiving groove 105 is formed. .

As shown in FIG. 3 , the rotating body 100 has a first fixing hole 107 formed on one side thereof to be coupled to the side edge of the switchboard door 20 by a fixing bolt.

In addition, the rotating body 100 has a structure in which the through-holes 110 and 110A are respectively formed in the upper and lower blocks 102 and 104 so that the rotating shaft 150 passes therethrough.

4 and 5 , the fixing hinge body 200 has a second fixing hole 207 coupled to a fixing bolt on the rear surface so as to be fixed to the switchboard case 10 is formed, and the rotation shaft 150 is formed. A communication hole 205 is formed in the vertical direction so as to be penetrated.

The rotation shaft 150 may employ a fastening bolt having a thread on the outer circumferential surface so that the lower end is fastened with a nut after penetrating in the vertical direction through the through holes 110 and 110A of the upper and lower blocks 102 and 104, and the fixing It has an outer diameter smaller than the inner diameter of the through-holes 110 and 110A so as not to interfere with the rotation of the rotating body 100 with respect to the hinge body 200 .

Meanwhile, the rotation shaft 150 may be configured as a rotation shaft 150 in the form of a pin rather than a bolt.

Referring to FIG. 6 , the step means includes a plurality of fitting grooves 210 respectively concavely formed on one side (upper surface) of the fixed hinge body 200 and formed at positions spaced apart from each other, and the rotating body 100 ) on one side (upper block) of a first ball bearing ( 310), and a first spring member 320 for elastically supporting the first ball bearing 310 toward the receiving groove 105 in the first accommodating hole 120, and in the first accommodating hole 120 A first support bolt 330 for supporting the first spring member 320 is provided.

The first accommodating hole 120 is formed in a perforated structure to communicate with the accommodating groove 105 in a vertical direction to the upper block 102 .

The first ball bearing 310 has a structure in which a portion is accommodated inside the first accommodating hole 120 , and the lower part protrudes toward the accommodating groove 105 through the lower hole of the first accommodating hole 120 . has

The first ball bearing 310 has a structure in which it is selectively locked and coupled to one of the plurality of fitting grooves 210 according to a rotation angle when the switchboard door 20 is rotated.

In addition, the first spring member 320 has a structure in which one end is closely attached to elastically support the first ball bearing 310 , and the other end is supported by the first support bolt 330 .

The first support bolt 330 may employ a hexagonal headless bolt having a screw thread on its outer circumferential surface so as to be screwed with the inner surface of the first accommodating hole 120 .

As shown in FIG. 4, the plurality of fitting grooves 210 are first spaced apart from each other so that the opening and closing angle of the switchboard door 20 is coupled with the first ball bearing 310 by locking, for example, every 35°. It is composed of 2, 3, 4 fitting grooves (210a, 210b, 210c, 210d).

Accordingly, the switchboard door 20 of the present invention is lockingly coupled to one of the first, second, third, and fourth fitting grooves 210a, 210b, 210c, and 210d in the first ball bearing 310 for the switchboard case 10. If necessary, it is possible to maintain the opening angle of the switchboard door 20 by angles of, for example, 35°, 70°, 105°, and 140°.

For example, when the first ball bearing 310 is locked in the first fitting groove 210a, the switchboard door 20 maintains an opening angle of 35° with respect to the switchboard case 10, and the first ball bearing ( When the 310 is locked in the second fitting groove 210b, the switchboard door 20 maintains an opening angle of 70° with respect to the switchboard case 10, and the first ball bearing 310 is inserted into the third fitting groove. When the switchboard door 20 is locked in the 210c, the switchboard door 20 maintains an opening angle of 105° with respect to the switchboard case 10, and the first ball bearing 310 is lockingly coupled in the fourth fitting groove 210d. In this case, the switchboard door 20 maintains an opening angle of 140° with respect to the switchboard case 10 .

For the operation of the switchboard, the operator can sequentially maintain the opening angles of 35, 70, 105, and 140 ° of the switchboard door 20, and after selecting and opening the opening angle of the switchboard door 20 preferred by the operator, the switchboard It has the advantage of being able to perform a work and improving workability.

At this time, when the first ball bearing 310 is in contact with the upper surface of the fixed hinge body 200 when the switchboard door 20 is rotated, the upper first spring member 320 is contracted. When the first, second, third, and fourth fitting grooves 210a, 210b, 210c, and 210d are locked to be accommodated, the first ball bearing 310 is lowered by the restoring elastic force of the contracted first spring member 320. It operates and is elastically supported toward the first, second, third, and fourth fitting grooves 210a, 210b, 210c, and 210d.

In addition, the fixed hinge body 200 is further provided with a display part 410 painted in the form of a band to indicate that the hinge is capable of step-by-step operation around the outer circumferential surface.

The display unit 410 performs a function of displaying to the outside that it is a step hinge provided with step means so that an operator can open the switchboard door 20 step by step.

As a modified example of the step means, as shown in FIGS. 7 and 8 , a plurality of locking grooves 210A respectively formed concavely on the other side (lower surface) of the fixed hinge body 200 and spaced apart from each other. ), and a second receiving hole 120A formed to communicate with the receiving groove 105 on the other side (lower block) of the rotating body 100, and the receiving groove 105 on the other side of the rotating body 100. A second ball bearing 310A partially accommodated in the second accommodating hole 120A formed to communicate with and selectively coupled to one of the plurality of locking grooves 210A, and in the second accommodating hole 120A A second spring member 320A elastically supporting the second ball bearing 310A toward the receiving groove 105, and a second supporting the second spring member 320A in the second receiving hole 120A A support bolt (330A) is further provided.

The second ball bearing 310A is also selectively locking coupled to one of the plurality of locking grooves 210A according to the opening angle of the switchboard door 20 in the same locking coupling method as the first ball bearing 310 described above, and the switchboard The function of maintaining the opening angle of the door 20 is performed.

Accordingly, the step means is lockingly coupled to the fitting grooves 210 and locking grooves 210A formed on the upper and lower surfaces of the hinge body 200 fixed by a plurality of ball bearings, and the switchboard against external force during the opening and closing operation of the switchboard door 20 It has the advantage of being able to firmly maintain the opening angle of the door 20 .

In addition, the locking groove 210A is also composed of first, second, third, and fourth locking grooves in the same structure as the fitting groove 210 described above, and is selectively lockingly coupled by the second ball bearing 310A. The function of maintaining the opening angle of the switchboard door 20 is performed so that the opening angle of the switchboard door 20 has an inclination angle of 35, 70, 105, and 140°.

The first and second support bolts 330 and 330A are coupled to be screwed together in the first and second receiving holes 120 and 120A, respectively, to support the first and second spring members 320 and 320A, respectively. It performs a function of adjusting the elastic force of the first and second spring members 320 and 320A according to the fastening height with the first and second accommodating holes 120 and 120A.

Therefore, the present invention can open the switchboard door 20 at the selected angle and maintain the opening angle by selecting a desired angle among a plurality of opening angles by the operator using the step means during the power distribution operation, as shown in FIG. , the opening and closing angle of the switchboard door 20 can be adjusted by a plurality of step steps according to the convenience of the operator, and the opening angle of the switchboard door 20 can be continuously maintained during the operator's power distribution work, so that the switchboard work is easily performed There are useful advantages that can be

In the present invention, the opening angle of the switchboard door 20 can be maintained step by step through the fitting groove 210 and the locking groove 210A, so that the opening angle suitable for the operation can be arbitrarily selected, thereby increasing the convenience of use. have the advantage of being able to

As such, although specific embodiments have been described in the detailed description of the present invention, various modifications are possible without departing from the scope of the present invention.

For example, it is applicable not only to the door hinge for the switchboard described above, but also applicable to door hinges in various fields.

Therefore, the scope of the present invention should not be limited to the above-described embodiments, but should be defined by the claims and equivalents as well as the claims to be described later.

That is, the present invention described as described above is not limited to the specific preferred embodiments described above, and anyone with ordinary skill in the art to which the invention pertains without departing from the gist of the present invention as claimed in the claims Of course, various modifications are possible, and such modifications are within the scope of the claims.

10: switchboard case 20: switchboard door
100: rotating body 102, 104: upper and lower blocks
105: receiving groove 106: connection part
107: first fixed hole 110,110A: through hole
120, 120A: first and second receiving holes 150: rotation shaft
200: fixed hinge body 205: communication hole
207: second fixing hole 210: fitting groove
210a, 210b, 210c, 210d: first, second, third, and fourth fitting grooves
210A: locking groove 310,310A: first and second ball bearings
320,320A: first and second spring members 330,330A: first and second support bolts
410: display

Claims (4)

A fixed hinge body 200 coupled to the side wall of the switchboard case 10 so as to be fixed in a bolted coupling manner, and entered into the receiving groove 105 of the rotating body 100 on the front side and axially coupled to the rotating shaft 150;
It is coupled to the side of the switchboard door 20, a receiving groove 105 into which the fixed hinge body 200 is fitted is formed, and the fixed hinge body 200 is rotatably coupled to the rotation shaft 150 a rotating body 100;
Step means for maintaining the opening and closing angle of the switchboard door 20 in a plurality of steps when the switchboard door 20 is rotated;
The step means includes a plurality of fitting grooves 210 respectively concavely formed on one side of the fixed hinge body 200 and formed at positions spaced apart from each other;
A first ball bearing partially accommodated in the first accommodating hole 120 formed to communicate with the accommodating groove 105 on one side of the rotating body 100 and selectively coupled to one of the plurality of fitting grooves 210 . (310) and;
A first spring member 320 for elastically supporting the first ball bearing 310 toward the receiving groove 105 in the first receiving hole 120, and
A stopper-type hinge having a multi-stage opening angle function, characterized in that it has a first support bolt (330) for supporting the first spring member (320) in the first receiving hole (120). The method according to claim 1,
A plurality of locking grooves 210A formed concavely on the other side of the fixed hinge body 200 and spaced apart from each other,
A second receiving hole (120A) formed to communicate with the receiving groove (105) on the other side of the rotating body (100),
A second ball bearing partially accommodated in the second receiving hole 120A formed to communicate with the receiving groove 105 on the other side of the rotating body 100 and selectively coupled to one of the plurality of locking grooves 210A (310A) and;
A second spring member (320A) for elastically supporting the second ball bearing (310A) toward the receiving groove (105) in the second receiving hole (120A), and
A stopper-type hinge having a multi-stage opening angle function, characterized in that it further includes a second support bolt (330A) for supporting the second spring member (320A) in the second receiving hole (120A). The method according to claim 1,
The fixed hinge body 200 is a stopper-type hinge having a multi-stage opening angle function, characterized in that the display unit 410 painted in the form of a band is further provided around the outer circumferential surface to indicate that the hinge is capable of step-by-step operation. The method according to claim 1,
The fitting groove 210 includes first, second, third, and fourth fitting grooves 210a, 210b, and 210c spaced apart from each other so that the opening and closing angle of the switchboard door 20 is locked and coupled to the first ball bearing 310 at regular angles. ,210d) a stopper-type hinge with a multi-stage opening angle function, characterized in that it consists of.

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