CN213962497U

CN213962497U - Supporting foot movable joint and supporting foot

Info

Publication number: CN213962497U
Application number: CN202021649818.3U
Authority: CN
Inventors: 刘宇敦
Original assignee: Li Xianti
Current assignee: Li Xianti
Priority date: 2020-08-10
Filing date: 2020-08-10
Publication date: 2021-08-17
Anticipated expiration: 2030-08-10

Abstract

The utility model provides a supporting leg movable joint and supporting legs, the supporting leg movable joint includes connecting block, connecting seat and receiving seat, the connecting block has an arc surface and is provided with the first screw that is connected with the supporting leg on this arc surface, the connecting seat has the caulking groove that supplies the connecting block to inlay and put and move, the bottom surface of caulking groove conforms to the arc surface of connecting block, set up the stroke groove on the bottom surface of caulking groove, the first screw of the connecting block is relative with this stroke groove after inlaying and adorning; the bottom of the caulking groove is provided with a plurality of limiting bulges, and the arc surface of the connecting block is provided with a groove matched with the limiting bulges; the bottom surface of the connecting seat is a spherical surface, the top surface of the bearing seat is a concave spherical surface which is matched with the shape of the bottom surface of the connecting seat, and a through hole which penetrates through the concave spherical surface is arranged in the center of the concave spherical surface. The supporting legs are connected with the mounting surface through the supporting leg movable joints, and the inclination angle of the supporting legs relative to the mounting surface is adjusted.

Description

Supporting foot movable joint and supporting foot

Technical Field

The utility model belongs to belong to furniture or office furniture field, concretely relates to supporting legs freely movable joint and supporting legs.

Background

The supporting legs of most of existing furniture such as dining tables, office conference tables, office chairs, sofas, cabinets, beds and the like are fixed and nonadjustable, so that inconvenience in the use process is caused, for example, the inclination angles of the supporting legs of the dining tables or office conference tables and the heights of table tops cannot be adjusted according to the heights or widths of seats, the situation that the legs of a person collide with the table legs, the distance between the legs of the person and the table tops is too small, or the seats are too far away from the table tops is easy to occur, and the furniture is low in adaptability. And because the situation that a plurality of people sit together in places such as a party, a conference and the like easily leads to the crowding of the foot placing space at the bottom of the table, and at the moment, the dining table and the office conference table with the existing fixed structure are difficult to finely adjust and can only be used. Similarly, the supporting legs of dining chairs, office chairs and sofas have the problems of non-adjustable inclination angles and non-adjustable seat heights.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects existing in the prior art, the utility model provides a supporting legs freely movable joint and supporting legs realizes the inclination adjustment of the supporting legs of furniture such as table, chair, sofa, bed, its concrete technical content as follows:

a movable joint of a supporting leg comprises a connecting block, a connecting seat and a bearing seat, wherein the connecting block is provided with an arc surface, a first screw hole connected with the supporting leg is formed in the arc surface, the connecting seat is provided with an embedded groove for the connecting block to be embedded and movable, the bottom of the embedded groove is an arc surface matched with the arc surface of the connecting block, a stroke groove communicated with the bottom surface of the connecting seat is formed in the bottom of the embedded groove, the embedded groove is communicated with the outside of the connecting seat, and the first screw hole of the connecting block is opposite to the stroke groove after being embedded; a plurality of limiting bulges are arranged on the bottom of the caulking groove, and grooves matched with the limiting bulges are arranged on the arc surface of the connecting block; the bottom surface of the connecting seat is a spherical surface, the top surface of the bearing seat is a concave spherical surface which is matched with the shape of the bottom surface of the connecting seat, and a through hole which penetrates through the concave spherical surface is arranged in the center of the concave spherical surface.

In one or more embodiments of the present invention, the limiting protrusion is hemispherical or tooth-shaped.

In one or more embodiments of the present invention, the plurality of limiting protrusions are sequentially connected to each other.

In one or more embodiments of the present invention, a plurality of guide posts are disposed on the concave spherical surface, a guide groove or a guide hole corresponding to the guide post is disposed at the bottom of the connecting seat, an extending direction of the guide groove or the guide hole corresponds to an extending direction of the stroke groove, and the guide post is inserted into the guide groove or the guide hole and movably engaged therewith.

In one or more embodiments of the present invention, the connecting seat is a spherical cap shape, and the top surface thereof is flat and has a plurality of first mounting holes penetrating through the top surface and the seat body.

In one or more embodiments of the present invention, the caulking groove of the connecting seat extends radially outward from the center, the connecting block has an end surface corresponding to a groove wall of the caulking groove on a side close to the center, and a top surface connected to the end surface, and the top surface is lower than or even with a groove opening of the caulking groove.

In one or more embodiments of the present invention, the two side walls of the caulking groove along the length direction are tapered from top to bottom to form a taper; the connecting block has a side conforming to the side wall.

In one or more embodiments of the present invention, the present invention further comprises a fixing base, wherein the fixing base comprises a substrate and a fixing table, and a second screw hole penetrating through the fixing table and the substrate is provided on the fixing base; the bearing seat is sleeved on the fixing table of the fixing seat through the through hole of the bearing seat.

In one or more embodiments of the present invention, the base plate of the fixing base is provided with a plurality of second mounting holes.

The utility model provides a supporting legs, including the supporting legs body with supporting legs freely movable joint, the top of supporting legs body is equipped with the screw thread spliced pole, the screw thread spliced pole pass accept the through-hole of seat with the first screw of connecting block is connected the spacing arch is connected locking through screw thread spliced pole and first screw when falling into the sawtooth bottom surface cooperation in the recess and is realized spacing reinforcement, and spacing arch removal and recess cooperation are allowed in order to realize the regulation of supporting legs angle to rotatory screw thread spliced pole to connecting block and accept the interval between the seat.

The utility model has the advantages that:

the utility model discloses a supporting legs freely movable joint simple structure, easy production and low cost, can realize the inclination of supporting legs for connecting plate (desktop, seat etc.) and adjust, only need during the installation to correspond the connecting block and put into in the middle of the caulking groove, it is fixed with the connecting plate to pass through the screw again with the connecting seat, wear to establish the through-hole of accepting the seat through the spliced pole of screw on the supporting legs afterwards, stroke groove on the connecting seat docks with the first screw of connecting block, manual rotatory not hard up a little supporting legs alright carry out the position control of supporting legs, the position is in good time with the supporting legs screw can, spacing arch and spacing groove cooperation fixed position, need not the instrument and assist, and is very convenient.

The utility model discloses not hard up supporting legs carries out the process of angle modulation, and the guide post is along the inner wall direction removal of guide way or guiding hole, and it is fixed to avoid spacing protruding accommodation process skew dislocation to influence. In addition, the connecting block is matched with the narrow side wall of the caulking groove, and the friction is increased to enable the connection to be tighter.

The utility model discloses the setting of fixing base is connected with the threaded connection post on the supporting legs body, plays the effect of nut seat, strengthens the stability of the threaded connection post at supporting legs top, improves the degree of weighing of supporting legs, makes the supporting legs adaptable large-scale furniture such as bed, sofa. And the fixed platform of the fixed seat is nested and matched with the through hole of the bearing seat to effectively prevent the bearing seat from shifting in the rotation process of the threaded connecting column.

Drawings

Fig. 1 is a schematic structural view of a movable joint of a supporting leg according to an embodiment of the present invention.

Fig. 2 is a first exploded view of the first movable joint of the supporting leg according to the first embodiment of the present invention.

Fig. 3 is an exploded view of a movable joint of a supporting foot according to a first embodiment of the present invention.

Fig. 4 is a first cross-sectional view of a first movable joint of a supporting foot according to a first embodiment of the present invention.

Fig. 5 is a sectional view of a movable joint of a supporting foot according to the first embodiment of the present invention.

Fig. 6 is a schematic structural diagram of a connection seat according to a first embodiment of the present invention.

Fig. 7 is a schematic structural view of a supporting leg according to a first embodiment of the present invention.

Fig. 8 is an exploded view of a supporting leg according to a first embodiment of the present invention.

Fig. 9 is a schematic view of a supporting leg adjusting state according to the first embodiment of the present invention.

Fig. 10 is a sectional view of a movable joint of a supporting foot according to a second embodiment of the present invention.

Detailed Description

The application scheme is further described below with reference to the accompanying drawings:

example one

Referring to the attached drawings 1-9, a supporting leg movable joint comprises a connecting block 1, a connecting seat 2, a bearing seat 3 and a fixed seat 4, wherein the connecting block 1 is provided with an arc surface 11, a first screw hole 10 connected with a supporting leg is arranged on the arc surface 11, the connecting seat 2 is provided with an embedded groove 21 for the connecting block 1 to be embedded and movable, the bottom 211 of the embedded groove 21 is an arc surface corresponding to the arc surface 11 of the connecting block 1, a stroke groove 212 communicated with the bottom of the connecting seat 2 is arranged on the bottom 211 of the embedded groove 21, the embedded groove 21 is communicated with the outside of the connecting seat 2, and the first screw hole 10 of the connecting block 1 is opposite to the stroke groove 212 after being embedded; on the tank bottom 211 of caulking groove 21, be provided with a plurality of spacing archs 213 in the both sides of stroke groove 212 extending direction, spacing arch 213 is hemispherical, and for consecutive setting. And a groove 111 matched with the limiting protrusion 213 is arranged on the arc surface 11 of the connecting block 1. The bottom surface 23 of the connecting base 2 is a spherical surface, the top surface of the bearing base 3 is a concave spherical surface 31 which is matched with the bottom surface 23 of the connecting base 2 in shape, and a through hole 30 which penetrates through the concave spherical surface 31 is arranged at the center of the concave spherical surface 31.

Furthermore, two guide posts 32 are arranged on the concave spherical surface 31, guide grooves 22 corresponding to the guide posts 32 are arranged at the bottom of the connecting seat 2, the guide grooves 22 avoid the caulking grooves 21, the extending direction of the guide grooves 22 corresponds to the extending direction of the stroke grooves 212, and the guide posts 32 are inserted in the guide grooves 22 and movably matched with the guide grooves.

Specifically, the connecting seat 2 is shaped like a spherical cap, and the top surface thereof is flat and has a plurality of first mounting holes 20 penetrating through the top surface and the seat body. The caulking groove 21 of the connecting seat 2 extends along the radial direction from the center outwards, the connecting block 1 is provided with an end surface 12 which is matched with a groove wall 215 of the caulking groove 21 close to one side of the center and a top surface 13 connected with the end surface 12, the top surface 13 is lower than a groove opening of the caulking groove 21 or is flush with the groove opening, the groove wall 215 of the caulking groove 21 close to one side of the center is in the vertical direction, the top surface 13 of the connecting block 1 comprises a first top surface 131 and a second top surface 132, an included angle between the end surface 12 of the connecting block 1 and the first top surface 131 is a right angle, and an included angle between the second top surface 132 and the first top surface 131 is an obtuse. The first screw hole 10 is parallel to the end surface 13 of the connecting block 1. Two side walls 214 of the caulking groove 21 along the length direction are inclined and narrowed from top to bottom to form a taper; the connecting piece 1 has a side 14 coinciding with the side wall 214.

The fixed seat 4 comprises a substrate 41 and a fixed table 42, and a second screw hole 40 penetrating through the fixed table 42 and the substrate 41 is formed in the fixed seat 4; the bearing seat 3 is sleeved on the fixing table 42 of the fixing seat 4 through the through hole 30. The substrate 41 of the fixing base 4 is provided with a plurality of second mounting holes 43.

The utility model provides a supporting legs, including supporting legs body 5 with supporting legs freely movable joint, the top of supporting legs body 5 is equipped with screw thread connecting post 51, screw thread connecting post 51 pass the through-hole 30 of accepting seat 3 with connecting block 1's first screw 10 is connected when spacing arch 213 falls into the cooperation of the sawtooth bottom surface in recess 111, be connected the locking through screw thread connecting post 51 and first screw 10 and realize spacing reinforcement, rotatory screw thread connecting post 51 to connecting block 1 and accept the interval between the seat 3 and allow spacing arch 213 to remove and the regulation of recess 111 cooperation in order to realize the supporting legs angle.

When the connecting block is installed, the connecting block 1 is correspondingly placed into the embedding groove 21, and then the connecting seat 2 is fixed with the connecting surface 6 through screws, wherein the connecting surface 6 comprises the bottom surfaces of furniture such as a desktop, a chair surface, a bed and a cabinet. Then, the second screw hole 40 of the fixing seat 4 is connected with the threaded connection post 51, and the supporting foot body 5 is rotated until the substrate 41 of the fixing seat 4 is attached to the top end of the supporting foot body 5, and the supporting foot body 5 is fixedly connected with the supporting foot body 5 by a screw passing through the connection hole. Then, the screw connection post 51 is passed through the through hole 30 of the socket 33 until the socket 3 is fitted on the fixing base 42. Finally, the threaded connecting post 51 passes through the travel groove 212 on the connecting seat 2 to be butted with the first screw hole 10 of the connecting block 1, the guide post 32 passes through the guide groove 22, and the limiting protrusion 213 is matched with the groove 111 for clamping. During the regulation, the position adjustment of supporting legs body 5 can be carried out to a little alright of manual rotation not hard up supporting legs body 5, treat that the position is in good time with supporting legs body 5 screw can, need not the instrument and assist, it is very convenient. The supporting leg body 5 is loosened to perform the angle adjustment process, and the guide column 32 moves along the inner wall of the guide groove 22 in a guiding manner, so that the offset and dislocation in the movement adjustment process are avoided. The end surface 12 and the top surface 13 are in two maximum limit states respectively corresponding to the adjustment of the supporting leg body 5, when the end surface abuts against the groove wall 215 of the caulking groove 21, the first screw hole 10 of the connecting block 1 is vertically opposite to the lower part, and the supporting leg is in a vertical state; when the connecting block 1 moves along with the supporting leg body 5 until the second top surface 132 of the connecting block abuts against the connecting surface 6, the supporting leg has the maximum outward-turning angle; between the two states, the limit is realized by the cooperation of the limit protrusion 213 and the groove 111.

Example two

Referring to fig. 10, the supporting leg movable joint of the present embodiment is different from the first embodiment in that a plurality of limiting protrusions 213 are disposed on the groove bottom 211 of the caulking groove 21, the limiting protrusions 213 are in a tooth shape and are sequentially connected to each other, and cover the entire groove bottom 211 of the caulking groove 21, and the corresponding groove 111 is in a zigzag shape and covers the arc surface 11 of the entire connecting block 1. Tooth-shaped design, compared with a hemispherical surface, the limiting matching surface is easier to extend and can cover the bottom 211 of the whole caulking groove 21, so that the limiting matching is more stable. And the connecting angle between the teeth is a round angle, so that the adjusting process is easier and more labor-saving.

The above preferred embodiments should be regarded as illustrative examples of the embodiments of the present application, and any technical deductions, replacements, improvements and the like similar to, similar to or based on the embodiments of the present application, such as the replacement of the position of the concave groove matched with the limiting protrusion, should be regarded as the protection scope of the present patent.

Claims

1. A movable joint of a supporting leg is characterized by comprising a connecting block, a connecting seat and a bearing seat, wherein the connecting block is provided with an arc surface, a first screw hole connected with the supporting leg is formed in the arc surface, the connecting seat is provided with an embedded groove for the connecting block to be embedded and movable, the bottom of the embedded groove is an arc surface matched with the arc surface of the connecting block, a stroke groove communicated with the bottom surface of the connecting seat is formed in the bottom of the embedded groove, the embedded groove is communicated with the outside of the connecting seat, and the first screw hole of the connecting block is opposite to the stroke groove after being embedded; a plurality of limiting bulges are arranged on the bottom of the caulking groove, and grooves matched with the limiting bulges are arranged on the arc surface of the connecting block; the bottom surface of the connecting seat is a spherical surface, the top surface of the bearing seat is a concave spherical surface which is matched with the shape of the bottom surface of the connecting seat, and a through hole which penetrates through the concave spherical surface is arranged in the center of the concave spherical surface.

2. The support foot knuckle according to claim 1, wherein the limiting protrusion is hemispherical or tooth-shaped.

3. The movable joint of supporting feet as claimed in claim 1 or 2, wherein there are a plurality of limiting protrusions which are connected in sequence.

4. The movable joint of supporting legs as claimed in claim 1, wherein the concave spherical surface is provided with a plurality of guide posts, the bottom of the connecting seat is provided with guide grooves or guide holes corresponding to the guide posts, the extending direction of the guide grooves or guide holes corresponds to the extending direction of the stroke grooves, and the guide posts are inserted into the guide grooves or guide holes and are movably matched with the guide grooves or guide holes.

5. The leg joint of claim 1, wherein the connecting base is in the shape of a spherical cap having a flat top surface and a plurality of first mounting holes extending through the top surface and the base.

6. The support foot knuckle according to claim 1, wherein the caulking groove of the connecting base extends radially outward from the center, and the connecting piece has an end surface corresponding to a groove wall of the caulking groove on a side close to the center, and a top surface connected to the end surface, and the top surface is lower than or level with a groove opening of the caulking groove.

7. The support leg joint of claim 1 or 6, wherein the two side walls of the caulking groove along the length direction are tapered from top to bottom to form a taper; the connecting block has a side conforming to the side wall.

8. The movable joint of the supporting leg as claimed in claim 1, further comprising a fixing base, wherein the fixing base comprises a base plate and a fixing platform, and a second screw hole penetrating through the fixing platform and the base plate is formed in the fixing base; the bearing seat is sleeved on the fixing table of the fixing seat through the through hole of the bearing seat.

9. The support foot joint of claim 8, wherein the base plate of the mounting base has a plurality of second mounting holes.

10. A supporting leg, its characterized in that: the supporting leg movable joint comprises a supporting leg body and the supporting leg movable joint as claimed in any one of claims 1 to 9, wherein a threaded connecting column is arranged at the top end of the supporting leg body, the threaded connecting column penetrates through a through hole of the bearing seat to be connected with a first screw hole of the connecting block, when the limiting protrusion falls into the groove, the threaded connecting column is connected with the first screw hole through the threaded connecting column to be locked to realize limiting reinforcement, and the distance between the threaded connecting column and the connecting block and the bearing seat is rotated to allow the limiting protrusion to move to be matched with the groove to realize the adjustment of the angle of the supporting leg.