Locking device for connecting frame profiles

Abstract

The utility model discloses a locking device used for connecting frame section bars, which comprises a locking device and section bars, the locking device comprises a stress main body, a leaf spring, a locking trigger, an insertion part, a longitudinal pin and a transverse pin, the leaf spring comprises a central leaf, an elastic arm and a folding side edge, the folding side edge is provided with a side hole, and the elastic arm is inserted into the side hole. The elastic arm is provided with a free end, the section bar comprises two groups of side walls and side edges which are oppositely arranged, a longitudinal groove is formed between the side walls and the side edges, and the inner side and the outer side of each side wall are respectively provided with an inner side groove and a longitudinal folding edge. The quick locking device has the advantages that the purpose of connecting and locking the transverse section and the vertical section is achieved through the quick locking device, the fixing mode that a traditional triangular connecting piece is tightened through screws is replaced, connection and locking can be achieved quickly without tools, the installation time of a modular prefabricated quick-assembly type steel wall system is greatly shortened, and the installation efficiency is improved. The mounting efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of profile assembly technology, in particular to a locking device for connecting frame profiles. Background Art

[0002] In the field of installation of sanitary equipment and related systems, the use of wall-mounted systems is becoming increasingly popular. In addition to being an additional part of the building structure, they can also make the installation of the bathroom simple, practical and clean. Various wall systems are known, in which sanitary equipment can be fixed to the upper wall system and the necessary connection interfaces for water supply and drainage pipes are provided.

[0003] However, the known systems have some disadvantages, in particular with regard to the connection between the frame profiles. For example, the known systems may be relatively complex, difficult to produce, inflexible, consisting of many parts and using a screw-tightening fixing method with triangular connectors; they require long assembly times and difficult assembly operations and the use of tools; they are not ergonomic and require the installer to perform difficult or unnatural operating movements; in some cases, at least when assembling some parts, the intervention of two operators is required; and sometimes it is not possible to accurately adjust the distances or gaps between profiles and / or other parts. Utility Model Content

[0004] The purpose of the utility model is to provide a locking device for connecting frame profiles to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The utility model provides a locking device for connecting frame profiles, comprising a locking device and a profile, wherein the locking device comprises a force-bearing body, a leaf spring, a locking trigger, an insertion portion, a longitudinal pin and a transverse pin, wherein the insertion portion and the force-bearing body respectively have an axial end one (13) and an axial end two, the leaf spring comprises a central leaf, an elastic arm and a folded side edge, the folded side edge is provided with a side hole, the elastic arm has a free end, the profile comprises two groups of side walls and side edges arranged oppositely, a longitudinal groove is formed between the side wall and the side edge, and an inner groove and a longitudinal folding edge are respectively provided on the inner and outer sides of the side wall.

[0007] Furthermore, the profile has a longitudinal inner cavity, the longitudinal inner cavity has two axially opposite ends, the closed end has a front edge, one end of the front edge is formed with a port, and the insertion part is inserted into the longitudinal inner cavity through the port.

[0008] Furthermore, the force-bearing body has a containing area, and the leaf spring and the locking trigger are located in the containing area.

[0009] Furthermore, the force-bearing body also includes a base plate, and the two ends of the base plate are connected with an end folding plate 1 and an end folding plate 2 which are perpendicular thereto. The end of the base plate close to the end folding plate 2 is provided with a supporting folding ear, and the end folding plate 2 has a snap portion and a protrusion, and the snap portion is provided with a fixing tooth, and the snap portion is tightly connected to the side wall.

[0010] Furthermore, the end fold plate 1 and the end fold plate 2 both have a bottom edge and a free end edge connected to the base plate, the fixed teeth extend from the free end edge and are clamped and connected to the longitudinal fold edge, the longitudinal pin passes through the end fold plate 1 and the end fold plate 2, and the end fold plate 2 is provided with an opening at one end of the axial end 2, and two notches are provided on the opening, and the two notches are arranged parallel to the end fold plate 2.

[0011] Furthermore, the leaf spring has a first end and a second end, the first end is provided with a plurality of locking teeth, the second end is provided with movable teeth, the movable teeth are supported by the folded side edges, the movable teeth are inserted into the opening and are arranged corresponding to the notch.

[0012] Furthermore, the leaf spring is located between the longitudinal pin and the base plate, and the leaf spring is hingedly connected to the transverse pin through the side hole.

[0013] Furthermore, the locking trigger includes a support portion arranged around the longitudinal pin, a pressing portion and an angle limit block are provided at one end of the support portion, and a cam is provided on the support portion.

[0014] Furthermore, a side of the cam close to the pressing portion has a curved contact edge, and an extending end of the cam is in contact with the leaf spring.

[0015] Furthermore, the insertion portion includes four spiral arms arranged in a cross shape, the spiral arms include an outer contact surface, two longitudinal side edges and a front end chamfer, the outer contour of the spiral arm is matched and connected with the inner groove, the outer contact surface is concave, the outer contact surface is in contact with the inner wall of the side wall, and the two longitudinal side edges are respectively located on both sides of the outer contact surface and are arranged perpendicular to each other.

[0016] Beneficial effect: The bottom of the quick locking device is inserted into the interior of the lower vertical profile, and the buckle on the top of the force-bearing body is pre-inserted into the flange of the upper horizontal profile, and the locking trigger is pulled to rotate it counterclockwise (from the top to the bottom), so that the triangular piece on the locking trigger presses the leaf spring, so that the tip member at the bottom of the leaf spring presses against the inner wall of the vertical profile, and the hook-shaped member on the top of the leaf spring hooks the flange of the upper horizontal profile, so as to achieve the purpose of connecting and locking the horizontal and vertical profiles, instead of the traditional triangular connector's screw tightening fixing method, it can quickly achieve connection and locking without the aid of tools, greatly shortening the installation time of the modular prefabricated quick-install steel wall system and improving installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an exploded schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the locking device structure of the utility model;

[0019] Figure 3 This is a schematic diagram of another angle locking device structure of the utility model;

[0020] Figure 4 It is a schematic diagram of an explosion of the locking device of the utility model.

[0021] Reference numerals

[0022] 1-locking device, 2-profile, 3-end, 4-port, 5-front edge, 6-longitudinal inner cavity, 7-bump, 8-side wall, 9-side edge, 10-longitudinal groove, 11-longitudinal fold, 12-inner groove, 13-axial end one, 14-axial end two, 15-insertion part, 16-buckle part, 17-force-bearing body, 18-leaf spring, 19-locking trigger, 20-first end, 21-accommodating area, 22-base plate, 23-end fold plate one, 24-end fold plate two, 25-bottom edge, 26 -free end edge, 27-second end, 28-locking tooth, 29-free end, 30-support portion, 31-longitudinal pin, 32-transverse pin, 33-support folding ear, 34-pressing portion, 35-swing arm, 36-external contact surface, 37-longitudinal side edge, 38-cam, 39-front end chamfer, 40-curved contact edge, 41-fixed tooth, 42-movable tooth, 43-open mouth, 44-notch, 45-central blade, 46-elastic arm, 47-folded side edge, 48-side hole, 49-angle limit block. DETAILED DESCRIPTION

[0023] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0024] Example

[0025] like Figure 1-4 As shown, a locking device for connecting frame profiles includes a locking device 1 and a profile 2, the locking device 1 includes a force-bearing body 17, a leaf spring 18 and a locking trigger 19, an insertion portion 15, a longitudinal pin 31 and a transverse pin 32, the insertion portion 15 and the force-bearing body 17 respectively have an axial end one 13 and an axial end two 14, the leaf spring 18 includes a central leaf 45, an elastic arm 46 and a folded side edge 47, the folded side edge 47 is provided with a side hole 48, the elastic arm 46 has a free end 29, the profile 2 includes two groups of side walls 8 and side edges 9 arranged oppositely, a longitudinal groove 10 is formed between the side wall 8 and the side edge 9, and an inner groove 12 and a longitudinal folded edge 11 are respectively provided on the inner and outer sides of the side wall 8.

[0026] The profile 2 has a longitudinal inner cavity 6 , which has two axially opposite end heads 3 , and a front edge 5 at the closed portion of the end heads 3 . A port 4 is formed at one end of the front edge 5 , and the insertion portion 15 is inserted into the longitudinal inner cavity 6 through the port 4 .

[0027] The force-bearing body 17 has a receiving area 21, and the leaf spring 18 and the locking trigger 19 are located in the receiving area 21. The force-bearing body 17 also includes a base plate 22, and the two ends of the base plate 22 are connected to an end folding plate 1 23 and an end folding plate 24 perpendicular thereto. The base plate 22 is provided with a support folding ear 33 at one end close to the end folding plate 24. The end folding plate 24 has a buckle portion 16 and a protrusion 7. The buckle portion 16 is provided with a fixing tooth 41, and the buckle portion 16 is clamped and connected with the side wall 8. The end folded plate 1 23 and the end folded plate 24 both have a bottom edge 25 and a free end edge 26 connected to the base plate 22, the fixed tooth 41 extends out of the free end edge 26 and is clamped and connected to the longitudinal folded edge 11, the longitudinal pin 31 passes through the end folded plate 1 23 and the end folded plate 24, and the end folded plate 24 is located at one end of the axial end 2 14 and is provided with an opening 43, and two notches 44 are provided on the opening 43, and the two notches 44 are arranged parallel to the end folded plate 24.

[0028] The leaf spring 18 has a first end 20 and a second end 27. A plurality of locking teeth 28 are provided at the end of the first end 20. A movable tooth 42 is provided on the second end 27. The movable tooth 42 is supported by a folded side edge 47. The movable tooth 42 is inserted into the opening 43 and arranged corresponding to the notch 44. The leaf spring 18 is located between the longitudinal pin 31 and the base plate 22. The leaf spring 18 is hinged to the transverse pin 32 through a side hole 48. The locking trigger 19 includes a support portion 30 arranged around the longitudinal pin 31. A pressing portion 34 and an angle limit block 49 are provided at one end of the support portion 30. A cam 38 is provided on the support portion 30. The cam 38 is close to the press One side of the pressing portion 34 has a curved contact edge 40, and the extended end of the cam 38 is in contact with the leaf spring 18. During the pushing process of the cam 38, the leaf spring 18 is pushed toward the base plate 22 through the first end 20 having the locking tooth 28, until the locking tooth 28 extends out of the base plate 22 and the side wall 8 of the profile 2, is embedded in the side wall 8 and pressed against it, and at the same time, the second end 27 moves together with the movable tooth 42 toward the free end edge 26 of the end flap 24, and the movable tooth 42 is close to the fixed tooth 41, so that the side wall 8 of the second profile 2 is clamped between the fixed tooth 41 and the movable tooth 42, and enters the notch 44 through the side edge 47.

[0029] The insertion portion 15 includes four swing arms 35 arranged in a cross shape, and the swing arm 35 includes an outer contact surface 36, two longitudinal side edges 37 and a front end chamfer 39. The outer contour of the swing arm 35 matches and is connected to the inner groove 12. The outer contact surface 36 is concave, and the outer contact surface 36 contacts the inner wall of the side wall 8. The two longitudinal side edges 37 are respectively located on both sides of the outer contact surface 36 and are arranged perpendicular to each other.

[0030] In this embodiment, the locking device 1 rotates around the X-axis through the pressing portion 34, presenting the following two operating modes:

[0031] 1. Active form: In this form, the leaf spring 18 is not loaded by the cam 38; the locking tooth 28 is retracted into the accommodating area 21 (i.e., does not extend out of the base plate 22), and the movable tooth 42 is at a certain distance from the fixed tooth 41 so that the buckle portion 16 can be hooked onto the side wall 8 of the profile 2; the pressing portion 34 extends out of the accommodating area 21, especially beyond the free end edge 26 of the second end flap 24;

[0032] 2. Locking mode: In this mode, the leaf spring 18 is loaded by the cam 38, the cam 38 pushes the leaf spring 18 toward the base plate 22, and the locking tooth 28 extends from the accommodating area 21 to the outside of the base plate 22; the movable tooth 42 maintains a tight position with the fixed tooth 41 to clamp the side wall 8 between the movable tooth 42 and the fixed tooth 41.

[0033] The specific operation steps in the locked state are as follows: insert the insertion portion 15 into the inner cavity 6 of the first profile 2, the insertion portion 15 is inserted to the front edge 5 of the first profile 2 at most, the pressing portion 34 is kept outside the inner cavity 6, the mechanical interference between the radial arm 35 and the first profile 2 makes the first profile 2 and the locking device 1 connected together, and the locking device 1 can still be manually removed from the inner cavity 6; next, the first profile 2 with the locking device 1 is close to the second profile 2 to ensure that it is aligned and parallel with the second profile 2, and can be The position of the locking device 1 is axially adjusted along the first profile 2, so that the insertion portion 15 slides in the inner cavity 6 of the first profile 2, and the locking device 1 is adjusted along the second profile 2, so that the buckle portion 16 with the fixed teeth 41 and the movable teeth 42 slides along the side wall 8 contacted by the fixed teeth 41 and the movable teeth 42. Finally, the locking trigger 19 is manually rotated to act on the pressing portion 34, so that the locking device 1 is placed in a locked state and locked on the two profiles 2, thereby realizing the connection between the two profiles 2;

[0034] When the pressing portion 34 finishes rotating, the locking trigger 19 reaches a stop point, at which the cam 38 is substantially perpendicular to the leaf spring 18. The locking trigger 19 is provided with an angle limit block 49. When the stop point is reached, it contacts a protrusion 7 extending from the end flap 24 in the accommodating area 21, thereby preventing the locking trigger 19 from excessive rotation. When the locking state is reached, the installer will feel a "click" sound, which is emitted when the stop point is passed. The position of the pressing portion 34 can also be quickly observed to determine whether the locking device 1 is properly locked, thereby ensuring higher safety in use. If the pressing portion 34 protrudes beyond the end flap 24, the locking device 1 is not in a locked state. If necessary, the locking device 1 can be opened and closed multiple times to release the profile 2 without the use of tools.

[0035] In another embodiment, multiple profiles can also be hooked vertically on the same plane. In fact, the locking device 1 is accommodated within the overall dimensions of a single profile 2 and ensures a 90° clamping with the profile 2, which can be used to install structural parts and / or other accessories to achieve fast and safe assembly. In addition, the utility model allows longitudinal adjustment along the A axis of the profile 2 (to compensate for possible cutting errors of the profile 2 along the A axis) and lateral adjustment to ensure the correct vertical direction between the profiles 2. By arranging multiple groups of profiles 2 and locking devices 1, a force-bearing frame can be manufactured for installing sanitary equipment and incorporating it into the wall system.

[0036] 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 aforementioned embodiments, those skilled in the art can still modify the technical solutions recorded in the aforementioned 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 utility model content within the protection scope of the utility model.

Claims

1. A locking device for connecting frame profiles, comprising a locking device (1) and a profile (2), characterized in that: The locking device (1) comprises a force-bearing body (17), a leaf spring (18) and a locking trigger (19), an insertion portion (15), a longitudinal pin (31) and a transverse pin (32); the insertion portion (15) and the force-bearing body (17) respectively have an axial end portion one (13) and an axial end portion two (14); the leaf spring (18) comprises a central leaf (45), an elastic arm (46) and a folded side edge (47); a side hole (48) is provided on the folded side edge (47); the elastic arm (46) has a free end (29); the profile (2) comprises two groups of side walls (8) and side edges (9) arranged opposite to each other; a longitudinal groove (10) is formed between the side wall (8) and the side edge (9); and an inner groove (12) and a longitudinal folded edge (11) are respectively provided on the inner and outer sides of the side wall (8).

2. A locking device for connecting frame profiles according to claim 1, characterized in that: The profile (2) has a longitudinal inner cavity (6), the longitudinal inner cavity (6) has two axially opposite end heads (3), the end heads (3) have a front edge (5) at the closed part, a port (4) is formed at one end of the front edge (5), and the insertion portion (15) is inserted into the longitudinal inner cavity (6) through the port (4).

3. A locking device for connecting frame profiles according to claim 1, characterized in that: The force-bearing body (17) has a containing area (21) therein, and the leaf spring (18) and the locking trigger (19) are located in the containing area (21).

4. A locking device for connecting frame profiles according to claim 1, characterized in that: The force-bearing body (17) also includes a base plate (22), and the two ends of the base plate (22) are connected to an end folded plate 1 (23) and an end folded plate 2 (24) perpendicular thereto. The base plate (22) is provided with a supporting folded ear (33) at one end close to the end folded plate 2 (24). The end folded plate 2 (24) has a buckle portion (16) and a protrusion (7). The buckle portion (16) is provided with a fixing tooth (41). The buckle portion (16) is clamped and connected to the side wall (8).

5. A locking device for connecting frame profiles according to claim 4, characterized in that: The end fold plate 1 (23) and the end fold plate 2 (24) both have a bottom edge (25) and a free end edge (26) connected to the base plate (22); the fixing tooth (41) extends from the free end edge (26) and is clamped and connected to the longitudinal fold edge (11); the longitudinal pin (31) passes through the end fold plate 1 (23) and the end fold plate 2 (24); an opening (43) is provided at one end of the axial end 2 (14); two notches (44) are provided on the opening (43); the two notches (44) and the end fold plate 2 (24) are arranged parallel to each other.

6. A locking device for connecting frame profiles according to claim 5, characterized in that: The leaf spring (18) comprises a first end (20) and a second end (27), wherein a plurality of locking teeth (28) are provided at the end of the first end (20), and a movable tooth (42) is provided on the second end (27), wherein the movable tooth (42) is supported by the folded side edge (47), and the movable tooth (42) is inserted into the opening (43) and arranged corresponding to the notch (44).

7. A locking device for connecting frame profiles according to claim 6, characterized in that: The leaf spring (18) is located between the longitudinal pin (31) and the base plate (22), and the leaf spring (18) is hingedly connected to the transverse pin (32) through the side hole (48).

8. A locking device for connecting frame profiles according to claim 1, characterized in that: The locking trigger (19) comprises a support portion (30) arranged around the longitudinal pin (31), a pressing portion (34) and an angle limit block (49) are provided at one end of the support portion (30), and a cam (38) is provided on the support portion (30).

9. A locking device for connecting frame profiles according to claim 8, characterized in that: The cam (38) has a curved contact edge (40) on one side close to the pressing portion (34), and the extended end of the cam (38) is in contact with the leaf spring (18).

10. A locking device for connecting frame profiles according to claim 1, characterized in that: The insertion portion (15) comprises four swing arms (35) arranged in a cross shape, the swing arm (35) comprising an outer contact surface (36), two longitudinal side edges (37) and a front end chamfer (39), the outer contour of the swing arm (35) matches and connects with the inner groove (12), the outer contact surface (36) is concave, the outer contact surface (36) contacts with the inner wall of the side wall (8), and the two longitudinal side edges (37) are respectively located on both sides of the outer contact surface (36) and are arranged perpendicular to each other.

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