Telescopic swing arm assembly based on furniture flap-up door device

Abstract

The utility model discloses a retractable swing arm assembly based on a furniture flap-up door device, which comprises a movable arm, a support arm and a locking structure, the movable arm is provided with a plurality of locking grooves along the length direction, one end of the movable arm is inserted into the support arm, the two ends of the locking piece are respectively provided with a top pressing part and a pressing part, and the locking structure is arranged on the support arm. The top pressing part is provided with a locking point, the locking point is matched with the locking groove, two torsional spring rings of the double torsional spring are arranged in the mounting grooves in the two sides of the locking fastener respectively, the side walls of the mounting grooves are provided with abutting surfaces, one end of the double torsional spring abuts against the abutting surfaces, and the other end of the double torsional spring abuts against the supporting arm. During manual installation, only the two torsion spring rings of the double torsion spring need to correspond to the installation grooves in the two side faces of the lock catch piece respectively, the whole double torsion spring is limited to the two installation grooves, then the rotating pin penetrates through the middle of the lock catch piece and the torsion spring rings of the double torsion spring, manual positioning is facilitated in the installation process, and the installation speed is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of furniture accessories, in particular to a telescopic swing arm assembly based on a furniture flip door device. Background Art

[0002] At present, many cabinet doors use an upward flip door device to realize the upward flip opening function. Although the upward flip door device can enable the cabinet door to realize the upward flip opening function, most of the swing arms of the upward flip door device currently do not have a length adjustment structure, cannot adapt to cabinet doors of different specifications, and have poor adaptability.

[0003] On March 27, 2024, the applicant applied for a telescopic swing arm mechanism based on a furniture flip-door device in China (application number 2024206082201), which is arranged at the hinge between the lock piece and the support arm through a torsion spring. The torsion spring provides elastic force for the lock piece. Under the elastic force of the torsion spring, the locking point of the lock piece is engaged with the locking groove of the movable arm. The lock piece is manually driven and disengaged from the locking groove to adjust the use length of the swing arm mechanism to adapt to cabinet doors of different specifications; during the assembly process of this structure, the torsion spring needs to be installed at the hinge between the lock piece and the support arm, and force needs to be applied to both of them respectively to realize the elastic function. However, the installation of this structure is currently cumbersome and the production speed cannot be further accelerated because further improvement is needed. Utility Model Content

[0004] The purpose of the utility model is to provide a retractable swing arm assembly based on a furniture flip door device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a retractable swing arm assembly based on a furniture flip door device, comprising:

[0006] A movable arm, wherein the movable arm is provided with a plurality of locking grooves along the length direction;

[0007] A support arm, wherein the support arm is a hollow structure, and one end of the movable arm is inserted into the support arm so that the movable arm moves along the length direction of the support arm;

[0008] A locking structure, wherein the locking structure includes a locking member, a rotating pin and a double torsion spring, wherein a pressing portion and a pressing portion are respectively provided at two ends of the locking member, and a locking point is provided on the pressing portion, and the locking point is adapted to the locking groove, and the two torsion spring coils of the double torsion spring are respectively provided in the mounting grooves on both sides of the locking member, and abutment surfaces are provided on the side walls of the mounting grooves, wherein one end of the double torsion spring abuts against the abutment surface, and the other end abuts against the support arm, and a through hole is provided on the mounting groove, and the rotating pin passes through the through hole and the torsion spring coil, and the two ends are respectively connected to the support arms.

[0009] Furthermore, the locking point is in a truncated cone shape, and the end and the wall surface are both arc-shaped structures, and the locking groove is adapted to the locking point.

[0010] Furthermore, a snap-fitting positioning block is provided on the wall surface of the locking point, and a snap-fitting positioning groove is provided on the wall surface of the locking groove, and the snap-fitting positioning block is matched with the snap-fitting positioning groove.

[0011] Furthermore, the outer surface of the pressing portion is provided with anti-slip grooves.

[0012] Furthermore, it also includes a decorative cover at the end of the support arm, the decorative cover includes a left end cover and a right end cover, the left end cover and the right end cover are fixed to the outer side of the end of the support arm by fastening bolts, and the movable arm is provided with a guide groove along the length direction corresponding to the fastening bolt, so that the fastening bolt can move along the guide groove when loosened.

[0013] Furthermore, the left end cover and the right end cover are "U"-shaped, and the inner sides of the left end cover and the right end cover are provided with installation positioning blocks, and the wall surface of the support arm is provided with an installation positioning groove, and the installation positioning block is embedded in the installation positioning groove when the decorative cover is installed.

[0014] Compared with the prior art, the beneficial effects of the utility model include: by inserting the movable arm into the support arm, the movable arm can be moved in and out on the support arm, and a plurality of locking grooves are provided on the movable arm, wherein the locking member is engaged with the locking groove when in a locked state through the elastic force provided by the double torsion spring, and during manual installation, it is only necessary to respectively correspond the two torsion spring coils of the double torsion spring to the installation grooves on the two sides of the locking member, so that the double torsion spring is limited to the two installation grooves as a whole, and then the turn pin is passed through the middle part of the locking member and the torsion spring coils of the double torsion spring, which is convenient for workers to position during installation and speeds up the installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional structural diagram of the utility model in a closed state.

[0016] Figure 2 It is a three-dimensional structural schematic diagram of the utility model in an unfolded state.

[0017] Figure 3 It is a schematic diagram of the half-section structure of the utility model in an unfolded state.

[0018] Figure 4 for Figure 3 A partial enlarged view of point A in the middle.

[0019] Figure 5 It is a schematic diagram of the structure of the utility model in a top view in an unfolded state.

[0020] Figure 6 for Figure 5 Schematic cross-sectional view of AA.

[0021] Figure 7 for Figure 6 A partial enlarged view of point B in the middle.

[0022] Figure 8 It is an explosion diagram of the utility model.

[0023] Fig. 9 for Figure 8 A partial enlarged view of point C in the middle.

[0024] Fig.10 It is a structural schematic diagram of the lock component, the rotating pin and the double torsion spring of the utility model.

[0025] In the figure: movable arm 10, locking slot 101, engaging positioning slot 1011, guide slot 102, support arm 20, installation positioning slot 201, locking member 30, pressing portion 301, pressing portion 302, locking point 303, engaging positioning block 3031, installation slot 304, abutting surface 305, through hole 306, turn pin 40, double torsion spring 50, torsion spring coil 501, first force end 502, second force end 503, left end cover 601, right end cover 602, installation positioning block 603, fastening bolt 70. DETAILED DESCRIPTION

[0026] Embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as being limited to the embodiments described herein, which are instead provided for a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not intended to limit the scope of protection of the present invention.

[0027] It should be understood that the various steps described in the method embodiments of the present invention may be performed in different orders and / or in parallel. In addition, the method embodiments may include additional steps and / or omit the steps shown. The scope of the present invention is not limited in this respect.

[0028] The term "including" and its variations used herein are open inclusions, i.e., "including but not limited to". The term "connected" may be directly connected or indirectly connected through intermediate components (elements). The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments". The relevant definitions of other terms will be given in the following description.

[0029] It should be noted that the concepts such as "first" and "second" mentioned in the present invention are only used to distinguish between devices, modules or units, and are not used to limit these devices, modules or units to be different devices, modules or units, nor are they used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0030] like Figures 1 to 10 A retractable swing arm assembly based on a furniture flip door device is shown, comprising a movable arm 10, a support arm 20 and a locking structure;

[0031] Specifically, the movable arm 10 is composed of a long U-shaped metal strip and a plastic liner embedded in the U-shaped metal strip. A plurality of locking grooves 101 are arranged along the length direction on one side of the plastic liner facing the opening of the U-shaped metal strip, and the distances between adjacent locking grooves 101 are consistent; and the outer side surface of the U-shaped metal strip is engraved with scales corresponding to each locking groove 101, and personnel make adjustments by observing the scales.

[0032] Specifically, the support arm 20 is a hollow structure, which is a square hollow tube. One end of the movable arm 10 is inserted into the support arm 20 so that the movable arm 10 can move along the length direction of the support arm 20 .

[0033] Specifically, the locking structure includes a lock member 30, a rotating pin 40 and a double torsion spring 50, wherein the two ends of the lock member 30 are respectively provided with a pressing portion 301 and a pressing portion 302, wherein the pressing portion 301 is provided with a locking point 303, wherein the locking point 303 is adapted to the locking groove 101, and the two torsion spring coils 501 of the double torsion spring 50 are respectively arranged in the mounting grooves 304 on both sides of the lock member 30, wherein the side walls of the mounting grooves 304 are provided with abutting surfaces 305; to be precise, the double torsion spring 50 includes a first force end 502 and a second force end 503, wherein the first force end 502 abuts against the abutting surface 305, and the second force end 503 abuts against the support arm 20, so that the lock member 30 is subjected to the elastic action of the double torsion spring 50, the locking point 303 is clamped in the locking groove 101, and the mounting groove 304 is provided with abutting surfaces 305. 04 is provided with a through hole 306, the turn pin 40 passes through the through hole 306 and the torsion spring coil 501, and the two ends are respectively connected to the support arm 20; it should be understood that during manual installation, it is only necessary to respectively correspond the two torsion spring coils 501 of the double torsion spring 50 to the installation grooves 304 on both sides of the locking member 30, and the gap between the two torsion spring coils 501 corresponds to the locking member 30 for buckling, so that the double torsion spring 50 is limited to the two installation grooves 304 as a whole, and then the turn pin 40 first passes through one side of the support arm 20, and then passes through the through hole 306 and the torsion spring coil 501, and finally passes through the other side of the support arm 20 and is connected. Under this structure, the locking member 30 can rotate relative to the support arm 20, and this structure is convenient for workers to position during installation, which can further speed up the installation speed and help enterprises reduce labor costs.

[0034] Among them, the locking point 303 is in the shape of a truncated cone, and the end and wall surface are both arc-shaped structures. The locking groove 101 is adapted to the locking point 303, and the wall surface of the locking point 303 is provided with a snap-fitting positioning block 3031, and the wall surface of the locking groove 101 is provided with a snap-fitting positioning groove 1011, and the snap-fitting positioning block 3031 is adapted to the snap-fitting positioning groove 1011. It should be understood that when the lock fastener 30 is released, the locking point is automatically guided and inserted into the locking groove 101 through the characteristics of its truncated cone structure, and the ends and wall surfaces of the locking point and the locking groove 101 are both arc-shaped structures, which can reduce the friction between the locking point and the movable arm 10 to reduce noise. After the locking point is fully inserted into the locking groove 101, the snap-fitting positioning block 3031 on its wall surface just matches the snap-fitting positioning groove 1011 on the wall surface of the locking groove 101, which can enhance the limiting stability between the locking point 303 and the locking groove 101, and avoid shaking of the lock fastener 30 during use.

[0035] Specifically, by providing anti-slip grooves on the outer surface of the pressing portion 302, the friction force of the outer surface of the pressing portion 302 is enhanced to prevent the installer's hands from slipping during the adjustment process.

[0036] Specifically, it also includes a decorative cover 60 at the end of the support arm 20, and the decorative cover 60 includes a left end cover 601 and a right end cover 602. The left end cover 601 and the right end cover 602 are fixed to the outer side of the end of the support arm 20 by fastening bolts 70. The movable arm 10 is provided with a guide groove 102 corresponding to the fastening bolt 70 along the length direction, so that the fastening bolt 70 can move along the guide groove 102 in a loosened state; it should be understood that before adjusting the movable arm 10, the fastening bolt 70 needs to be in a loosened state, and the fastening bolt 70 moves linearly along the guide groove 102 during the adjustment and telescopic process. After the adjustment of the movable arm 10 is completed, the left end cover 601 and the right end cover 602 are fixed by tightening the fastening bolts 70. The two side surfaces of the support arm 20, which is a hollow square tube, are under the pressure of the left end cover 601 and the right end cover 602, and the inner side thereof is also pressed tightly against the movable arm 10, thereby tightening the connection effect.

[0037] Specifically, the left end cover 601 and the right end cover 602 are in a "U" shape, and the inner side surfaces of the left end cover 601 and the right end cover 602 are both provided with installation positioning blocks 603, and the wall surface of the support arm 20 is provided with an installation positioning groove 201. When the decorative cover 60 is installed, the installation positioning block 603 is embedded in the installation positioning groove 201. When installing the left end cover 601 and the right end cover 602, the installation positioning block 603 cooperates with the installation positioning groove 201 to quickly position them, thereby facilitating and accelerating the installation of the left end cover 601 and the right end cover 602.

[0038] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A retractable swing arm assembly based on a furniture flip door device, characterized in that: include: A movable arm (10), wherein the movable arm (10) is provided with a plurality of locking grooves (101) along a length direction; A support arm (20), wherein the support arm (20) is a hollow structure, and one end of the movable arm (10) is inserted into the support arm (20), so that the movable arm (10) can move along the length direction of the support arm (20); The locking structure comprises a locking member (30), a rotating pin (40) and a double torsion spring (50), wherein the two ends of the locking member (30) are respectively provided with a pressing portion (301) and a pressing portion (302), the pressing portion (301) is provided with a locking point (303), the locking point (303) is adapted to the locking groove (101), and the two torsion spring coils (501) of the double torsion spring (50) are respectively provided on the locking member (30) and the pressing portion (302). The side walls of the mounting grooves (304) are provided with abutment surfaces (305), wherein one end of the double torsion spring (50) abuts against the abutment surface (305), and the other end abuts against the support arm (20). A through hole (306) is provided on the mounting groove (304), and the rotating pin (40) passes through the through hole (306) and the torsion spring coil (501), and the two ends are respectively connected to the support arm (20).

2. A retractable swing arm assembly based on a furniture flip door device according to claim 1, characterized in that: The locking point (303) is in the shape of a truncated cone, and both the end and the wall surface are arc-shaped structures.

3. The retractable swing arm assembly based on the furniture flip door device according to claim 2, characterized in that: The wall surface of the locking point (303) is provided with a snap-fit ​​positioning block (3031), and the wall surface of the locking groove (101) is provided with a snap-fit ​​positioning groove (1011), and the snap-fit ​​positioning block (3031) is adapted to the snap-fit ​​positioning groove (1011).

4. The retractable swing arm assembly based on the furniture flip door device according to claim 1, characterized in that: The outer surface of the pressing portion (302) is provided with anti-slip grooves.

5. The retractable swing arm assembly based on the furniture flip door device according to claim 1, characterized in that: The invention also comprises a decorative cover (60) at the end of the support arm (20), wherein the decorative cover (60) comprises a left end cover (601) and a right end cover (602), wherein the left end cover (601) and the right end cover (602) are fixed to the outer side of the end of the support arm (20) by means of a fastening bolt (70), and the movable arm (10) is provided with a guide groove (102) corresponding to the fastening bolt (70) along the length direction, so that the fastening bolt (70) can move along the guide groove (102) in a loosened state.

6. The retractable swing arm assembly based on the furniture flip door device according to claim 5, characterized in that: The left end cover (601) and the right end cover (602) are in a "U" shape. The inner side surfaces of the left end cover (601) and the right end cover (602) are both provided with installation positioning blocks (603). The wall surface of the support arm (20) is provided with an installation positioning groove (201). When the decorative cover (60) is in an installed state, the installation positioning block (603) is embedded in the installation positioning groove (201).

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