Corner bead for indoor decoration

Abstract

The utility model belongs to the technical field of indoor decoration, and particularly relates to a corner bead for indoor decoration, which comprises a middle corner bead, the left end and the right end of the middle corner bead are respectively connected with a first outer corner bead and a second outer corner bead in a sliding mode, and two fixing heads are fixed on the surface of the left end of the first outer corner bead. Two fixing holes are formed in the surface of the right end of the second outer corner bead, an inner cavity is formed in the right end of the second outer corner bead, a rotating shaft is rotationally connected to the middle of the interior of the inner cavity, a gear is fixed to the outer surface of the rotating shaft, and balance rods are fixed to the left side and the right side of the interior of the inner cavity; a rack is slidably connected to the outer surface of the balance rod, and the problems that in the scheme, due to the fact that all sets of corner protection strips cannot be fixed, after the corner protection strips are installed on corners, all sets of corner protection strips need to be independently fixed to the corners, and the construction efficiency is affected are solved; and the upper corner protection strip and the lower corner protection strip need to be adjusted independently.

Description

Technical Field

[0001] The utility model belongs to the technical field of indoor decoration, and specifically relates to a corner protection strip for indoor decoration. Background Art

[0002] Corner guards are divided into: external corner guards (external corners are installed in protruding corners, and most of them are large-hole profiles with a cross-sectional angle greater than 90 degrees), internal corner guards (internal corners are installed in recessed corners, and most of them are small round holes, and the cross-sectional angle of the profile is less than 90 degrees.), bendable corner guards, and T-shaped corner guards; Corner guards can also be divided into: thermal insulation corner guards and decorative corner guards. Winged corner guards are mesh materials pasted on both sides of metal or PVC profiles to anchor into the plaster. Wingless corner guards are holes punched on metal or PVC profiles to allow the corner guards to be directly embedded in the plaster.

[0003] After checking the public (announcement) number: CN218990731U, a corner bead for indoor decoration is disclosed. This technology discloses "through the coordinated use of the upper corner bead, the lower corner bead, the adjustment groove, the adjustment plate, the fastening groove, the fastening bolt, and the fastening screw hole, according to the height of the corner to be protected, the upper corner bead and the lower corner bead are moved up and down respectively under the action of the adjustment plate in the adjustment groove, and adjusted to a suitable position, and the fastening screw holes on the adjustment plate are fixed to the positions of the upper corner bead and the lower corner bead by the fastening bolts in the fastening groove, and finally the double-sided tape is affixed to the back and right sides of the upper corner bead and the lower corner bead, and the corner bead is affixed to the corner" and other technical solutions, which have "the purpose of conveniently adjusting the length of the indoor decoration corner bead is achieved, and the problem of reduced applicability caused by the fixed length of the existing indoor decoration corner bead is solved" and other technical effects;

[0004] However, each set of corner guards in the above solution cannot be fixed to each other, so after the corner guards are installed on the corners, each set of corner guards needs to be fixed to the corners separately, which affects the construction efficiency; and the upper corner guards and the lower corner guards need to be adjusted separately;

[0005] In order to solve the above problems, the present application proposes a corner guard strip for interior decoration. Utility Model Content

[0006] In order to solve the above problems existing in the prior art, the utility model provides a corner guard for interior decoration, which has the characteristics that two sets of corner guards can be spliced ​​and fixed without the aid of tools, and the first outer corner guard and the second outer corner guard on both sides can be adjusted simultaneously.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a corner guard for interior decoration, comprising a middle corner guard, the left and right ends of the middle corner guard are respectively slidably connected with a first outer corner guard and a second outer corner guard, the left end surface of the first outer corner guard is fixed with two fixing heads, the right end surface of the second outer corner guard is provided with two fixing holes, the right end of the second outer corner guard is provided with an inner cavity, the middle of the inner cavity is rotatably connected with a rotating shaft, a gear is fixed on the outer surface of the rotating shaft, balance rods are fixed on the left and right sides of the inner cavity, a rack is slidably connected to the outer surface of the balance rod, pin heads are slidably connected to the upper and lower sides of the inner cavity, and the racks on the left and right sides are respectively fixedly connected to the pin heads on the upper and lower sides, and a spring is sleeved on the outer surface of the balance rod.

[0008] As an optimal technical solution for a corner guard strip for interior decoration of the utility model, a bidirectional screw rod is rotatably connected between the left and right ends inside the middle corner guard strip, and the outer surfaces of both ends of the bidirectional screw rod are threadedly connected to limit blocks, and the limit blocks on both sides are respectively connected to the first outer corner guard strip and the second outer corner guard strip, and a dial wheel is fixed to the middle outer surface of the bidirectional screw rod.

[0009] As a preferred technical solution for an interior decoration corner guard bar of the utility model, a slide groove is provided on the front surface of the middle corner guard bar, and the limit block is slidably connected to the middle corner guard bar through the slide groove.

[0010] As a preferred technical solution of the corner guard strip for interior decoration of the utility model, a slot hole is opened in the middle of the front surface of the middle corner guard strip.

[0011] As a preferred technical solution for the corner protection strip for interior decoration of the utility model, the gear inside the inner cavity and the racks on both sides are meshed transmission.

[0012] As a preferred technical solution of the corner guard for interior decoration of the utility model, the outer surface of the end of the pin head is a slope structure.

[0013] Compared with the prior art, the utility model has the following beneficial effects: when two corner guards need to be spliced, the fixing head on one corner guard is inserted into the fixing hole on the other corner guard. When the fixing head is completely inserted into the fixing hole, the rack is pushed by the pressure of the spring rebound to drive the pin head into the fixing hole. At the same time, the pin head is also inserted into the fixing head located in the fixing hole, so that the two sets of corner guards can be spliced ​​and fixed without the help of tools.

[0014] The bidirectional screw is driven to rotate by turning the dial wheel, and the bidirectional screw drives the first outer corner guard and the second outer corner guard on both sides to move synchronously in opposite directions through the limit blocks on both sides, so that the overall length can be adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0018] Figure 3 For this utility model Figure 2 Schematic diagram of the structure of the local A in the middle;

[0019] In the figure: 1. middle corner guard; 2. first outer corner guard; 3. second outer corner guard; 4. fixing head; 5. fixing hole; 6. inner cavity; 7. rotating shaft; 8. gear; 9. balance bar; 10. rack; 11. pin head; 12. spring; 13. two-way screw; 14. limit block; 15. dial wheel; 16. slide groove; 17. slot hole. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example

[0022] See also Figure 1-3The utility model provides the following technical solutions: a corner bead for indoor decoration, comprising a middle corner bead 1, the left and right ends of the middle corner bead 1 are respectively slidably connected with a first outer corner bead 2 and a second outer corner bead 3, the left end surface of the first outer corner bead 2 is fixed with two fixing heads 4, the right end surface of the second outer corner bead 3 is provided with two fixing holes 5, the right end of the second outer corner bead 3 is provided with an inner cavity 6, the middle of the inner cavity 6 is rotatably connected with a rotating shaft 7, the outer surface of the rotating shaft 7 is fixed with a gear 8, the left and right sides of the inner cavity 6 are fixed with a balance bar 9, the outer surface of the balance bar 9 is slidably connected with a rack 10, the upper and lower sides of the inner cavity 6 are slidably connected with a pin head 11, and the racks 10 on the left and right sides are respectively connected with the upper and lower sides. The pin head 11 is fixedly connected, and a spring 12 is sleeved on the outer surface of the balance rod 9. In the present embodiment, when two corner guards need to be spliced, the fixing head 4 on one of the corner guards is inserted into the fixing hole 5 on the other corner guard. When the fixing head 4 is fully inserted into the fixing hole 5, the rebound pressure of the spring 12 pushes the rack 10 to drive the pin head 11 into the fixing hole 5. At the same time, the pin head 11 is also inserted into the fixing head 4 located inside the fixing hole 5, thereby splicing and fixing the two corner guards. When the two corner guards are disassembled, an Allen wrench is inserted into the interior of the rotating shaft 7, and the rotating shaft 7 is rotated to cooperate with the gear 8 to drive the pin head 11 on the rack 10 to detach from the fixing hole 5 for disassembly and separation.

[0023] Specifically, a bidirectional screw rod 13 is rotatably connected between the left and right ends of the inner part of the middle corner guard bar 1, and the outer surfaces of both ends of the bidirectional screw rod 13 are threadedly connected to limit blocks 14, and the limit blocks 14 on both sides are respectively connected to the first outer corner guard bar 2 and the second outer corner guard bar 3, and a dial wheel 15 is fixed to the middle outer surface of the bidirectional screw rod 13. In this embodiment, the bidirectional screw rod 13 is driven to rotate by dialing the dial wheel 15, and the bidirectional screw rod 13 drives the first outer corner guard bar 2 and the second outer corner guard bar 3 on both sides to move synchronously in opposite directions through the limit blocks 14 on both sides, so that the overall length can be adjusted.

[0024] Specifically, a slide groove 16 is provided on the front surface of the middle corner guard bar 1, and the limit block 14 is slidably connected to the middle corner guard bar 1 through the slide groove 16. In this embodiment, the limit block 14 is limited by the slide groove 16, so that when the bidirectional screw rod 13 rotates, it can drive the limit block 14 to slide along the slide groove 16.

[0025] Specifically, a slot hole 17 is provided in the middle of the front surface of the middle corner bead 1 . In this embodiment, the slot hole 17 inside the middle corner bead 1 can be moved from the outside through the slot hole 17 .

[0026] Specifically, the gear 8 inside the inner cavity 6 and the racks 10 on both sides are meshed with each other. In this embodiment, when the gear 8 rotates, the racks 10 on both sides are driven to slide synchronously in opposite directions along the balance bars 9 on both sides.

[0027] Specifically, the outer surface of the end of the pin head 11 is a sloped structure, so that the pin head 11 can shrink inward when being squeezed by the fixing head 4 in this embodiment.

[0028] The working principle and use process of the utility model are as follows: first, the bidirectional screw rod 13 is driven to rotate by turning the dial wheel 15, and the bidirectional screw rod 13 drives the first outer corner guard bar 2 and the second outer corner guard bar 3 on both sides to move synchronously in opposite directions through the limit blocks 14 on both sides, so that the overall length can be adjusted; when the two corner guard bars need to be spliced, the fixing head 4 on one of the corner guard bars is inserted into the fixing hole 5 on the other corner guard bar. When the fixing head 4 is fully inserted into the fixing hole 5, the rebound pressure of the spring 12 pushes the rack 10 to drive the pin head 11 to enter the fixing hole 5, and at the same time, the pin head 11 is also inserted into the fixing head 4 located inside the fixing hole 5, so that the two corner guard bars are fixed after splicing.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A corner bead for interior decoration, comprising a middle corner bead (1), characterized in that: The left and right ends of the middle corner guard strip (1) are respectively slidably connected with a first outer corner guard strip (2) and a second outer corner guard strip (3); two fixing heads (4) are fixed on the left end surface of the first outer corner guard strip (2); two fixing holes (5) are provided on the right end surface of the second outer corner guard strip (3); an inner cavity (6) is provided inside the right end of the second outer corner guard strip (3); a rotating shaft (7) is rotatably connected to the middle of the inner cavity (6); a gear (8) is fixed to the outer surface of the rotating shaft (7); balance rods (9) are fixed to the left and right sides of the inner cavity (6); a rack (10) is slidably connected to the outer surface of the balance rod (9); pin heads (11) are slidably connected to the upper and lower sides of the inner cavity (6); and the racks (10) on the left and right sides are respectively fixedly connected to the pin heads (11) on the upper and lower sides; and a spring (12) is sleeved on the outer surface of the balance rod (9).

2. The indoor decoration corner bead according to claim 1, characterized in that: A bidirectional screw rod (13) is rotatably connected between the left and right ends of the middle corner guard strip (1), and the outer surfaces of both ends of the bidirectional screw rod (13) are threadedly connected to limit blocks (14), and the limit blocks (14) on both sides are respectively connected to the first outer corner guard strip (2) and the second outer corner guard strip (3), and a dial wheel (15) is fixed to the middle outer surface of the bidirectional screw rod (13).

3. The indoor decoration corner bead according to claim 1, characterized in that: A sliding groove (16) is provided on the front surface of the middle corner protection strip (1), and the limiting block (14) is slidably connected to the middle corner protection strip (1) via the sliding groove (16).

4. The indoor decoration corner bead according to claim 1, characterized in that: A slot (17) is provided in the middle of the front surface of the middle corner protection strip (1).

5. The indoor decoration corner bead according to claim 1, characterized in that: The gear (8) inside the inner cavity (6) and the racks (10) on both sides are meshed and driven.

6. The indoor decoration corner bead according to claim 1, characterized in that: The outer surface of the end of the pin head (11) is a sloped structure.

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