CN108666874A - Side frame and overall skeleton of a general-purpose low-voltage switchgear cabinet - Google Patents

Abstract

The present invention disclose a kind of no-welding, it is whole withstand forces, on-deformable universal low voltage switchgear body side frame and overall skeleton.Technical solution includes the frame body being mainly made of right column, left column, bottom end rail, upper beam, it is characterised in that：The right column, left column, bottom end rail are bent after cutting two 90 ° of notch in the middle by a proximate matter, the upper beam with the right column, left column is connect by the convergence part at lateral surface both ends and with knee, and using the processed steel board in other surfaces, it is not necessarily to soldering.Advantage is as follows：Side frame is bent after section cuts two 90 ° of notch wherein by a complete proximate matter, and the side frame of formation is whole still continuous, therefore side frame overall structure securely and is unlikely to deform very much.

Description

Side frame and overall skeleton of a general-purpose low-voltage switchgear cabinet

technical field

The invention relates to a general-purpose low-voltage switchgear cabinet body frame.

Background technique

In the traditional low-voltage switchgear cabinet frame, the connection between the beam and the column is usually fixed by welding. In order to ensure the processing accuracy, tooling is required for clamping and positioning during welding, and the production process is relatively complicated. Moreover, the profile is affected by the thermal stress of welding, which can easily cause deformation of the frame and decrease in strength. And there are also restrictions on the plate, which can only be made of cold-rolled plate or hot-rolled plate. In addition, the welding place is uneven and has poor aesthetics.

In response to the above problems, the Chinese invention with the authorized announcement number "CN 206558881 U" discloses "a low-voltage switchgear cabinet frame", and its solution includes: an upper beam, a lower beam, and two left and right columns made of plates , the upper beam, the lower beam and the column are all provided with mounting holes, and the upper beam, the lower beam and the column are connected by self-working screws. The disadvantages are: 1. The connection strength between the upper beam, the lower beam and the column is poor, and it is easy to deform; 2. The overall bearing capacity is poor.

Contents of the invention

The technical problem to be solved by the present invention is to provide a general-purpose low-voltage switchgear cabinet side frame and overall skeleton that is free of welding, has good overall bearing capacity, and is not easily deformed.

In order to solve the above-mentioned problems, the technical solution adopted by the present invention includes a frame body mainly composed of right upright column, left upright column, lower beam and upper beam, which is characterized in that: the right column, left column and lower beam are composed of a profile It is formed by cutting two 90° incisions at the top and then bending. The upper beam is connected with the right and left columns through the joints at both ends of the outer surface and with angle irons, and other surface-treated steel plates are used. No soldering is required.

The side frame of the general-purpose low-voltage switchgear cabinet is characterized in that: the cutout is provided with at least one set of matching positioning protrusions and positioning grooves.

The side frame of the general-purpose low-voltage switchgear cabinet is characterized in that: the cross-section of the profile is "C"-shaped, and the outer surface is bent to form a reinforcing concave part and a connecting concave part, and the connecting parts at both ends of the upper beam are placed In the connecting concave part, it is connected by angle iron.

The side frame of the general-purpose low-voltage switchgear cabinet is characterized in that: the right column, the left column, the lower beam, and the upper beam are provided with a number of installation holes.

The side frame of the general-purpose low-voltage switchgear cabinet is characterized in that: the upper beam is also made of the profile, and its cross-section is "C"-shaped, and the outer surface is bent to form a reinforcing concave part and a connecting concave part .

A general-purpose low-voltage switchgear cabinet overall skeleton, realized according to the above-mentioned general-purpose low-voltage switchgear cabinet side frame, is characterized in that: it includes two frame bodies arranged opposite to each other on the left and right, the frame body and the two sides of the upper end It is connected by the upper large beam, and the two sides of the lower end are connected by the lower large beam.

The overall skeleton of the general-purpose low-voltage switchgear cabinet is characterized in that: both ends of the first upper side, the first lower side, and the first outer side of the lower large beam are bent inward to form a first connection respectively. part, the second connecting part and the third connecting part, and the first connecting part, the second connecting part and the third connecting part are provided with mounting holes, and the lower large beam passes through the first connecting part, the second connecting part The connecting portion and the third connecting portion are connected to the inner surface of the upper end of the frame body.

The overall skeleton of the general-purpose low-voltage switchgear cabinet is characterized in that: the two ends of the second upper side or the second lower side of the upper large beam are bent inward to form a fourth connection part, and the fourth Mounting holes are provided on the connecting portion, and the upper large beam is connected to the inner surface of the lower end of the frame body through the fourth connecting portion.

The advantages of the general-purpose low-voltage switchgear cabinet frame of the present invention are as follows: the side frame is formed by cutting two 90° incisions in the middle section of a complete profile and then bent, and the formed side frame is still continuous as a whole, so the side frame The overall structure is very firm and not easily deformed. The overall framework of the low-voltage switchgear cabinet assembled by such side frames is also very firm and not easily deformed. In addition, due to the omission of welding and redundant connectors (such as angle irons and self-working screws), the overall structure is more beautiful and concise.

Description of drawings

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Fig. 1 is a schematic structural view of the side frame of the universal low-voltage switchgear cabinet of the present invention;

Fig. 2 is the structural representation of profile of the present invention;

Fig. 3 is the structural representation of upper beam of the present invention;

Figure 4 is a partially enlarged view of Figure 1;

Figure 5 is a partially enlarged view of Figure 2;

Fig. 6 is the sectional view of profile of the present invention;

Fig. 7 is a schematic structural view of the overall skeleton of the general-purpose low-voltage switchgear of the present invention;

Fig. 8 is a schematic structural view of the lower beam of the present invention;

Fig. 9 is a schematic structural view of the upper beam of the present invention;

FIG. 10 is a partially enlarged view of FIG. 7 .

Detailed ways

Example 1:

As shown in Figures 1-6, the side frame of the general-purpose low-voltage switchgear cabinet body of the present invention includes a frame body 1 mainly composed of a right column 2, a left column 3, a lower beam 4, and an upper beam 5. The right column 2 , the left column 3, and the lower beam 4 are formed by cutting two 90° cuts 7 in the middle of a section bar 6 and then bending them. The sides of the right column 2 and the left column 3 are connected. The right column 2, the left column 3, the upper beam 5, and the angle iron 11 are all provided with some mounting holes 12, and the overall fixing can be completed by loading screws in the mounting holes 12.

Further, the cutout 7 is provided with a set of matching positioning protrusions 8 and positioning grooves 9 . It mainly plays the role of mutual conversion between longitudinal force and transverse force, so as to increase the bearing capacity of the frame. Simultaneously, it also plays the role of positioning to ensure that the profile 6 can be smoothly bent and fixed.

Further, the cross-section of the profile 6 is "C"-shaped, and the outer surface is bent to form a reinforcing recess 13 and a connecting recess 14. The upper beam 5 is also made of the profile 6, and the outer surface also has a reinforcing recess. 13 and engaging recess 14. The connecting parts 10 at both ends of the upper beam 5 are placed in the connecting recess 14, and the two ends of the angle iron 11 are also respectively placed in the connecting recess 14, and finally screwed into the mounting holes 12 to fix it. Through the above-mentioned design of the reinforcing recess 13, the overall strength of the profile 6 is strengthened to increase the bearing capacity. At the same time, the connection recess is used to make the upright column, the upper beam, and the angle iron tightly connected, and the pressure of the upper beam can be transmitted downward, thereby greatly increasing the overall bearing capacity of the side frame.

Example 2:

As shown in Figures 7-10, the overall skeleton of a general-purpose low-voltage switchgear cabinet according to the present invention is realized according to the side frame of the general-purpose low-voltage switchgear cabinet described in Embodiment 1, and includes two left and right relative frame bodies 1. Both sides of the upper end of the frame body 1 are connected by an upper large crossbeam 16 , and both sides of the lower end of the frame body 1 are connected by a lower large crossbeam 15 . Both ends of the first upper side 151 , the first lower side 152 , and the first outer side 153 of the lower large beam 15 are bent inward to form a first connecting portion 154 , a second connecting portion 155 , and a third connecting portion, respectively. 156, and the first connecting portion 154, the second connecting portion 155, and the third connecting portion 156 are provided with mounting holes 12, and the upper large beam 16 passes through the first connecting portion 154, the second connecting portion 155, The third connecting portion 156 is connected to the inner surface of the upper end of the frame body 1 . Both ends of the second upper side 161 or the second lower side 162 of the upper large beam 16 are bent inward to form a fourth connecting portion 163, and the fourth connecting portion 163 is provided with a mounting hole 12, the upper The large beam 16 is connected to the inner side of the lower end of the frame body 1 through the fourth connecting portion 163 . Finally, the overall fixing can be completed by inserting screws into the corresponding mounting holes 12, and finally the overall non-welding connection is realized.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention are included in the protection scope of the present invention. Inside.

Claims (8)

1. A general-purpose low-voltage switchgear cabinet side frame, including a frame body (1) mainly composed of a right column (2), a left column (3), a lower beam (4), and an upper beam (5). That is: the right column (2), the left column (3), and the lower beam (4) are formed by bending two 90° cuts (7) in the middle of a section bar (6), and the The upper crossbeam (5) is connected with the right upright post (2) and the left upright post (3) through the connecting parts (10) at both ends of the outer surface and the angle iron (11). 2. The side frame of the general-purpose low-voltage switchgear cabinet according to claim 1, characterized in that: the cutout (7) is provided with at least one set of matching positioning protrusions (8) and positioning grooves (9) . 3. The side frame of the general-purpose low-voltage switchgear cabinet according to claim 1, characterized in that: the cross-section of the profile (6) is "C"-shaped, and the outer surface is bent to form a reinforced concave part (13) and The connecting recesses (14), the connecting parts (10) at both ends of the upper beam (5) are placed in the connecting recesses (14) and then connected by angle irons (11). 4. The side frame of the general-purpose low-voltage switchgear cabinet according to claim 1, characterized in that: the right column (2), the left column (3), the lower beam (4), and the upper beam (5) are provided with There are several mounting holes (12). 5. The side frame of the general-purpose low-voltage switchgear cabinet according to claim 1, characterized in that: the upper beam (5) is also made of the profile (6), and its cross-section is "C"-shaped, and A reinforcing recess (13) and a connecting recess (14) are formed on the outer surface by bending. 6. An overall skeleton of a general-purpose low-voltage switchgear cabinet, realized according to the side frame of the general-purpose low-voltage switchgear cabinet according to any one of claims 1-5, characterized in that it includes two frame bodies arranged opposite to each other on the left and right (1), both sides of the upper end of the frame body (1) are connected by an upper beam (16), and both sides of the lower end are connected by a lower beam (15). 7. The overall framework of the universal low-voltage switchgear cabinet according to claim 6, characterized in that: the first upper side (151), the first lower side (152), the first Both ends of the outer surface (153) are bent inward to form a first connecting portion (154), a second connecting portion (155), and a third connecting portion (156), respectively, and the first connecting portion (154), Mounting holes (12) are provided on the second connection part (155) and the third connection part (156), and the lower large beam (15) passes through the first connection part (154) and the second connection part (155) . The third connecting portion (156) is connected to the inner surface of the upper end of the frame body (1). 8. The overall framework of the universal low-voltage switchgear cabinet according to claim 6, characterized in that: the second upper side (161) or the second lower side (162) of the upper large beam (16) faces A fourth connection part (163) is formed by bending inside, and a mounting hole (12) is provided on the fourth connection part (163), and the upper large beam (16) connects with the fourth connection part (163) The inner surface of the lower end of the frame body (1) is connected.