Cabinet frame connecting structure
By using a combined connection structure of 17-fold profiles and tee pieces, the problems of aesthetics and flatness at the welding points of traditional machine frame are solved, and stable connection and improved profile strength are achieved.
Patent Information
- Application Number
- CN202422669815.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-21
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2035-08-21
AI Technical Summary
The laser welding parts of traditional machine frames have no shielding surface, which affects the appearance and dimensional accuracy. The 43-dimensional surface has no reinforcing ribs, resulting in exposed profiles, and the butt welding of three groups of profiles can easily lead to flatness and aesthetic problems.
17-fold profiles are used to increase the inflection points, which are connected to the tee vertically and the tee left and tee right locking screws and welded. Combined with the chamfer design and block structure of the tee, the welding stability and profile strength are increased, while avoiding the impact of cutting on flatness.
The stability and aesthetics of welding are improved, the damage to the surface flatness of the profile is avoided, and the stability of the connection and the strength of the profile are enhanced.
Smart Images

Figure CN223391551U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cabinets, in particular to a cabinet frame connection structure. Background Art
[0002] A cabinet is a freestanding or self-supporting enclosure used to house electrical or electronic equipment. It typically features doors, removable or fixed side panels, and a back panel. Cabinets are an indispensable component of electrical equipment and serve as a carrier for electrical control devices. They are typically constructed of cold-rolled steel or alloys. They provide protection against water, dust, and electromagnetic interference for stored equipment.
[0003] The traditional machine frame is made of profiles through welding. The laser welding part of the traditional profile is an unobstructed surface, which affects the appearance and dimensional accuracy. The size of 43 exceeds the industry standard, and there is no reinforcing rib on the 43-size surface. In addition, the three groups of profiles are butt-welded, which easily leads to one end of the profile being exposed, or the profile needs to be cut, affecting the straightness and flatness of the 43-surface. Utility Model Content
[0004] The purpose of the utility model is to provide a cabinet frame connection structure, which increases the bending points of the profile by 17-fold profiles to ensure the strength of the profile, and then maintains the overall isosceles right-angle shape to facilitate vertical installation. The vertical tee is connected to the left tee and the right tee by locking screws, and then the vertical tee, the left tee and the right tee are respectively welded to the 17-fold profiles, which is convenient for connection in different environments to solve the problems raised in the above-mentioned background technology.
[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a cabinet frame connection structure, comprising a first profile, a second profile and a third profile, a tee vertical being installed at one end of the first profile, a left tee and a right tee being installed at both ends of the second profile, one end of the third profile being connected to one side of the left tee and the right tee, the vertical tee being fixed to the left tee and the right tee by locking screws, the vertical tee comprising a plane seat, a connecting block being fixed at one end of the plane seat away from the low profile, the left tee and the right tee both comprising a mounting seat, a socket being provided on one side of the mounting seat, an end of the connecting block away from the plane seat passing through the socket, a countersunk hole being provided at one end of the mounting seat, the locking screw being threadedly connected in the countersunk hole, a threaded hole connected to the locking screw being provided on the surface of the connecting block.
[0006] Preferably, a first clamping block is fixed around both sides of the left and right sides of the tee, and a second clamping block is fixed around the side of the tee away from the connecting block. The first clamping block and the second clamping block are respectively clamped with the second profile, the third profile and the first profile.
[0007] Preferably, a three-way waterproof pad is provided on the outer side of the connecting block, the outer shape of the three-way waterproof pad is flush with the outline of the plane seat, and the three-way waterproof pad is located between the three-way longitudinal and the three-way left and right.
[0008] Preferably, the first profile, the second profile and the third profile are 17-fold profiles, and the cross-sections of the first profile, the second profile and the third profile are arranged in the shape of a right-angled isosceles triangle as a whole.
[0009] Preferably, grooves are recessed inwardly on two vertical surfaces of the first profile, the second profile and the third profile, and reinforcing ribs are formed inside, and the grooves are located between the two groups of first clamping blocks.
[0010] Preferably, the outer contours of the longitudinal, left and right sides of the tee are all chamfered, and welding space is left between the first and second clamping blocks and the outer surfaces of the mounting seat and the plane seat.
[0011] Compared with the prior art, the beneficial effects of the present invention are:
[0012] 1. The utility model connects the first profile through the longitudinal tee, and the second profile and the third profile through the left tee and the right tee, and then welds them to increase the stability of welding. Subsequently, the longitudinal tee is connected to the left tee and the right tee through locking screws, which is not only convenient for disassembly, but also avoids cutting the profile by transitioning through the tee and welding between the profiles to avoid affecting the flatness of the profile surface.
[0013] 2. The utility model provides chamfers on the contour surface of the tee, and reserves welding space between the first and second clamping blocks and the outer surface of the mounting seat and the plane, so as to increase the contact area when welding the tee to the profile, ensure the stability of the welding, and avoid the welding point protruding outward to affect the flatness and aesthetics of the surface. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0015] Figure 2 This is a schematic diagram of the three-dimensional structure of the three-way vertical joint of the utility model;
[0016] Figure 3 This is a schematic diagram of the three-dimensional structure of the left three-way valve of the present invention;
[0017] Figure 4 It is a schematic diagram of the three-dimensional structure of the right tee of the utility model;
[0018] Figure 5 It is a schematic diagram of the three-dimensional structure of the first profile of the utility model.
[0019] Numbers in the figure: 1. First profile; 2. Second profile; 3. Third profile; 4. Tee vertical; 41. Plane seat; 42. Connecting block; 43. Threaded hole; 44. Second clamping block; 5. Tee left; 51. Mounting seat; 52. Jack; 53. Countersunk hole; 54. First clamping block; 6. Tee right; 7. Locking screw; 8. Tee waterproof pad; 9. Groove; 10. Reinforcement rib; 11. Chamfer. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0021] The utility model provides Figures 1 to 5 A cabinet frame connection structure shown in the figure includes a first profile 1, a second profile 2 and a third profile 3, a tee vertical 4 is installed at one end of the first profile 1, a tee left 5 and a tee right 6 are installed at both ends of the second profile 2, one end of the third profile 3 is connected to one side of the tee left 5 and the tee right 6, the tee vertical 4 is fixedly connected to the tee left 5 and the tee right 6 by a locking screw 7, the tee vertical 4 includes a plane seat 41, a connecting block 42 is fixed to the end of the plane seat 41 away from the low profile, the tee left 5 and the tee right 6 both include a mounting seat 51, a socket 52 is provided on one side of the mounting seat 51, an end of the connecting block 42 away from the plane seat 41 passes through the socket 52, a countersunk hole 53 is provided at one end of the mounting seat 51, the locking screw 7 is threadedly connected in the countersunk hole 53, and a threaded hole 43 connected to the locking screw 7 is provided on the surface of the connecting block 42;
[0022] The vertical tee 4 is connected to the first profile 1, the left tee 5 and the right tee 6 are respectively connected to the second profile 2 and the third profile 3, and then welded to increase the stability of the welding. Subsequently, the vertical tee 4 is used to connect the left tee 5 and the right tee 6 through the locking screws 7, which is not only convenient for disassembly, but also through the transition of the tee and the welding between the profiles, which can avoid cutting the profiles to avoid affecting the flatness of the profile surface.
[0023] A first clamping block 54 is fixed around both sides of the tee left 5 and the tee right 6, and a second clamping block 44 is fixed around the side of the tee longitudinal 4 away from the connecting block 42. The first clamping block 54 and the second clamping block 44 are clamped with the second profile 2, the third profile 3 and the first profile 1 respectively. The tee left 5 and the tee right 6 are clamped with the second profile 2 and the third profile 3 respectively through the first clamping block 54, thereby increasing the contact area and improving the stability of the connection. At the same time, the second clamping block 44 clamps the tee longitudinal 4 with the first profile 1.
[0024] A three-way waterproof pad 8 is provided on the outer side of the connecting block 42. The outer shape of the three-way waterproof pad 8 is flush with the outline of the plane seat 41. The three-way waterproof pad 8 is located between the three-way longitudinal 4 and the three-way left 5 and the three-way right 6. Through the setting of the three-way waterproof pad 8, it is convenient to seal the three-way longitudinal 4 and the three-way left 5 and the three-way right 6, which is convenient for use in different environments.
[0025] The first profile 1, the second profile 2 and the third profile 3 are 17-fold profiles. The cross-sections of the first profile 1, the second profile 2 and the third profile 3 are arranged in the shape of a right-angled isosceles triangle as a whole. By setting the structures of the first profile 1, the second profile 2 and the third profile 3, the strength and deformation resistance of the profile itself are increased, and the linearity of the profile surface itself is maintained. At the same time, the design of the appearance facilitates vertical connection of the profile.
[0026] Grooves 9 are recessed inwardly on both vertical surfaces of the first profile 1, the second profile 2 and the third profile 3, and reinforcing ribs 10 are formed inside. The grooves 9 are located between the two groups of first blocks 54. The arrangement of the grooves 9 and the reinforcing ribs 10 increases the strength of the profile plane.
[0027] The outer contours of the tee vertical 4, the tee left 5 and the tee right 6 are all provided with chamfers 11, and welding space is reserved between the first clamping block 54 and the second clamping block 44 and the outer surfaces of the mounting seat 51 and the plane seat 41. By providing the chamfers 11 on the contour surface of the tee, and reserving welding space between the first clamping block 54 and the second clamping block 44 and the outer surfaces of the mounting seat 51 and the plane, it is convenient to increase the contact area when welding the tee to the profile, ensure the stability of the welding, and at the same time avoid the welding point bulging outward to affect the flatness and aesthetics of the surface.
[0028] During specific use, first clamp the second clamping block 44 on one side of the plane seat 41 to the inside of one end of the first profile 1, and then clamp the second profile 2 and the third profile 3 to the first clamping block 54 on the surface of the mounting seat 51 respectively, and then weld the plane seat 41 to the first profile 1 and the mounting seat 51 to the second profile 2 and the third profile 3 through laser welding, and then insert the connecting block 42 on one side of the plane seat 41 into the socket 52, and use the locking screw 7 to connect the mounting seat 51 to the plane seat 41 through the connecting block 42, so that the first profile 1, the second profile 2 and the third profile 3 are vertically connected to each other.
[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A cabinet frame connection structure, comprising a first profile (1), a second profile (2) and a third profile (3), characterized in that: A tee (4) is installed at one end of the first profile (1), a left tee (5) and a right tee (6) are installed at both ends of the second profile (2), one end of the third profile (3) is connected to one side of the left tee (5) and the right tee (6), the tee (4) is fixedly connected to the left tee (5) and the right tee (6) by means of a locking screw (7), the tee (4) includes a plane seat (41), and a connecting block is fixed to the end of the plane seat (41) away from the low profile. (42), the left tee (5) and the right tee (6) both include a mounting seat (51), a socket (52) is provided on one side of the mounting seat (51), one end of the connecting block (42) away from the plane seat (41) passes through the socket (52), one end of the mounting seat (51) is provided with a countersunk hole (53), the locking screw (7) is threadedly connected in the countersunk hole (53), and a threaded hole (43) connected to the locking screw (7) is provided on the surface of the connecting block (42).
2. The cabinet frame connection structure according to claim 1, characterized in that: A first clamping block (54) is fixed around both sides of the left tee (5) and the right tee (6), and a second clamping block (44) is fixed around the side of the longitudinal tee (4) away from the connecting block (42). The first clamping block (54) and the second clamping block (44) are respectively clamped with the second profile (2), the third profile (3) and the first profile (1).
3. The cabinet frame connection structure according to claim 1, characterized in that: The outer side of the connecting block (42) is provided with a three-way waterproof pad (8), the outer shape of the three-way waterproof pad (8) is flush with the outline of the plane seat (41), and the three-way waterproof pad (8) is located between the three-way longitudinal (4) and the three-way left (5) and the three-way right (6).
4. The cabinet frame connection structure according to claim 1, characterized in that: The first profile (1), the second profile (2) and the third profile (3) are 17-fold profiles, and the cross-sections of the first profile (1), the second profile (2) and the third profile (3) are arranged in the shape of a right-angled isosceles triangle.
5. The cabinet frame connection structure according to claim 1, characterized in that: Grooves (9) are recessed inwards on the two vertical surfaces of the first profile (1), the second profile (2) and the third profile (3), and reinforcing ribs (10) are formed inside. The grooves (9) are located between the two groups of first clamping blocks (54).
6. The cabinet frame connection structure according to claim 2, characterized in that: The outer contours of the tee longitudinal (4), the tee left (5) and the tee right (6) are all provided with chamfers (11), and welding spaces are reserved between the first clamping block (54) and the second clamping block (44) and the outer surfaces of the mounting seat (51) and the plane seat (41).