CN215685990U

CN215685990U - Supporting leg and furniture with same

Info

Publication number: CN215685990U
Application number: CN202121276465.1U
Authority: CN
Inventors: 武志江
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-08
Filing date: 2021-06-08
Publication date: 2022-02-01
Anticipated expiration: 2031-06-08

Abstract

The utility model discloses a supporting leg, which comprises an ejector rod and an outer sleeve, wherein the ejector rod is arranged in the outer sleeve and is in threaded connection with the outer sleeve, two ends of the outer sleeve are open, a boss is arranged at the lower end of the ejector rod, a first concave cambered surface is arranged on the bottom surface of the boss, a rolling ball sleeve is further arranged on the outer side of the boss and is in a barrel shape communicated up and down, a second concave cambered surface is arranged at the lower part of the inner wall surface of the rolling ball sleeve, an inner cavity is formed between the first concave cambered surface and the second concave cambered surface, a rotatable universal ball is arranged in the inner cavity, and the universal ball protrudes out of the lower end of the rolling ball sleeve; and rotating the outer sleeve to enable the universal ball to be hidden in the outer sleeve or extend out of the outer sleeve. The utility model avoids the problem that the traditional supporting legs can not ensure the movement and the stability. Be equipped with first concave cambered surface on the boss, be equipped with the second concave cambered surface in the ball cover, universal ball is established and is formed the inner chamber between first concave cambered surface and the second concave cambered surface, and universal ball is bigger with the internal face area of contact of inner chamber for universal ball's bearing capacity is stronger.

Description

Supporting leg and furniture with same

Technical Field

The application relates to the technical field of furniture, in particular to a supporting leg and furniture with the same.

Background

Currently, furniture has the following problems during use: when the furniture needs to be moved, the furniture is large in size and heavy in weight, so that the furniture is difficult to move. In order to improve the flexibility of furniture movement, the bottom of the furniture is provided with the moving wheel, so that the problem that the furniture is difficult to move is solved, but due to the arrangement of the moving wheel, the flexibility of the furniture is improved, and meanwhile, the position of the furniture is difficult to stabilize, and the problem of unstable use is also brought. Due to the two-sided problem of furniture movement products, the more degrees of freedom, the more flexible, but also the more unstable. The universal wheel can provide a great deal of freedom for the furniture, but the more freedom the furniture is, the safer and more unstable the furniture is. Therefore, a supporting structure is needed to solve the problems of difficult movement and poor stability of furniture.

SUMMERY OF THE UTILITY MODEL

The utility model provides a supporting leg for overcoming the problems of difficulty in moving and poor stability of furniture in the prior art.

In order to solve the technical problems, the utility model adopts the technical scheme that: a supporting leg comprises a mandril and an outer sleeve, wherein the mandril is arranged in the outer sleeve and is in threaded connection with the outer sleeve, two ends of the outer sleeve are open, a boss is arranged at the lower end of the mandril, a first concave arc surface is arranged on the bottom surface of the boss, a rolling ball sleeve is further arranged on the outer side of the boss and is in a barrel shape which is communicated up and down, a second concave arc surface is arranged at the lower part of the inner wall surface of the rolling ball sleeve, an inner cavity is formed between the first concave arc surface and the second concave arc surface, a rotatable universal ball is arranged in the inner cavity, and the universal ball protrudes out of the lower end of the rolling ball sleeve; and rotating the outer sleeve to enable the universal ball to be hidden in the outer sleeve or extend out of the outer sleeve.

In the technical scheme, when the device is installed and used, one end of the ejector rod, which is far away from the ball rolling sleeve, is connected with a supported object, the outer sleeve is in contact with the ground, and the outer sleeve and the ejector rod in threaded connection with the outer sleeve are used for supporting the supported object together. When the supported object needs to be moved, the outer sleeve is rotated to enable the outer sleeve to move upwards around the ejector rod, the universal ball slowly extends out of the outer sleeve and is in contact with the ground in the process that the outer sleeve moves on the ejector rod, and the supported object is supported by the universal ball and the ejector rod. Because the universal ball can roll in the inner cavity to push the supported object, the supported object can be quickly moved by the rolling of the universal ball. After the supported object is moved to a proper position, the outer sleeve is rotated to enable the outer sleeve to be in contact with the ground, the universal ball is hidden in the outer sleeve, and the supported object is stably supported by the outer sleeve and the ejector rod. According to the supporting leg, when the supported object does not need to be moved, the stability of the supported object can be ensured by using the outer sleeve and the ejector rod; when the supported object needs to be moved, the purpose of conveniently moving the supported object can be ensured by utilizing the universal ball and the ejector rod, and the problem that the traditional supporting legs cannot ensure the moving and the stability are both solved. In addition, be provided with first concave cambered surface on the boss, be provided with the second concave cambered surface in the ball cover, universal ball sets up first concave cambered surface with in forming the inner chamber between the second concave cambered surface, universal ball is bigger with the internal surface area of contact of inner chamber for universal ball's bearing capacity is stronger.

Preferably, the inner diameter of the first concave arc surface is gradually reduced from bottom to top; the internal diameter of the second concave cambered surface is gradually reduced from top to bottom.

Preferably, a plurality of balls are further arranged in the inner cavity, and the balls are located on the upper side of the universal ball and are in rolling fit with the upper surface of the universal ball.

Preferably, an arc-shaped layered space is formed between the first concave cambered surface and the universal ball, the ball is located in the layered space, and the ball is in rolling fit with the first concave cambered surface.

Preferably, the boss is of a columnar structure, and the rolling ball sleeve is arranged on the outer side of the boss and is in threaded connection or interference fit with the rolling ball sleeve.

Preferably, the base is connected with one end, far away from the ball rolling sleeve, of the ejector rod.

Preferably, a deformable shielding structure is arranged on the ejector rod and is arranged between the base and the outer sleeve.

Preferably, the shielding structure is a telescopic hose, the hose is sleeved on the ejector rod, one end of the hose is connected with the base, and the other end of the hose is connected with the outer sleeve.

Preferably, the base includes first base and fixed mounting the threaded rod on the first base, first base with the ejector pin is kept away from the one end of rolling the ball cover links to each other.

Preferably, the base comprises a second base and a connecting body arranged on the second base, a plurality of mounting holes are formed in the second base, threaded holes are formed in the connecting body, and the threaded holes are in threaded connection with one end, far away from the rolling ball sleeve, of the ejector rod.

Preferably, a first external thread is arranged on the middle section of the ejector rod, and a first internal thread matched with the first external thread is arranged on the inner wall surface of the outer sleeve.

The utility model also provides furniture which comprises a furniture body, wherein the supporting legs are arranged at the bottom of the furniture body.

Compared with the prior art, the utility model has the beneficial effects that: according to the supporting leg, when the supported object does not need to be moved, the stability of the supported object can be ensured by using the outer sleeve and the ejector rod; when the supported object needs to be moved, the purpose of conveniently moving the supported object can be ensured by using the universal ball and the ejector rod, and the problem that the traditional supporting legs cannot ensure the movement and the stability can be solved. In addition, be provided with first concave cambered surface on the boss, be provided with the second concave cambered surface in the ball cover, universal ball sets up first concave cambered surface with in forming the inner chamber between the second concave cambered surface, universal ball is bigger with the internal surface area of contact of inner chamber for universal ball's bearing capacity is stronger.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a cross-sectional view of a support foot according to the present invention;

FIG. 2 is a perspective view of the support foot of the present invention;

FIG. 3 is a schematic structural view of the stem bar and the boss of the supporting leg of the present invention;

FIG. 4 is a schematic structural view of an outer sleeve in the leg of the present invention;

FIG. 5 is a schematic structural view of one embodiment of a base in a support foot of the present invention;

FIG. 6 is a schematic view of the structure of a ball sleeve in the supporting foot of the utility model;

FIG. 7 is a cross-sectional view of another embodiment of the present invention in a foot;

fig. 8 is a perspective view of another embodiment of the present invention in a support foot.

In the drawings: 1. a top rod; 2. an outer sleeve; 3. a boss; 4. a first concave arc surface; 5. rolling a ball sleeve; 6. a second concave arc surface; 7. an inner cavity; 8. a universal ball; 9. a base; 10. a shielding structure; 11. a first external thread; 12. a first internal thread; 13. a ball bearing; 91. a first base; 92. a threaded rod; 93. a second base; 94. mounting holes; 95. a threaded hole; 96. a connector.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Example 1

As shown in fig. 1, 2, 7 and 8, the support leg comprises a mandril 1 and an outer sleeve 2, wherein the mandril 1 is arranged inside the outer sleeve 2 and is in threaded connection with the outer sleeve 2, two ends of the outer sleeve 2 are open, a boss 3 is arranged at the lower end of the mandril 1, a first concave arc surface 4 is arranged on the bottom surface of the boss 3, a rolling ball sleeve 5 is further arranged outside the boss 3, the rolling ball sleeve 5 is in a barrel shape which is through up and down, a second concave arc surface 6 is arranged at the lower part of the inner wall surface of the rolling ball sleeve 5, an inner cavity 7 is formed between the first concave arc surface 4 and the second concave arc surface 6, a rotatable universal ball 8 is arranged in the inner cavity 7, and the universal ball 8 protrudes out of the lower end of the rolling ball sleeve 5; rotating the outer sleeve 2, and moving the outer sleeve 2 upwards along the mandril 1 so that the universal ball 8 extends out of the outer sleeve 2; when the outer sleeve 2 is rotated reversely, the outer sleeve 2 moves downwards along the mandril 1, so that the universal ball 8 is hidden in the outer sleeve 2.

In this embodiment, the cross-sectional shape of the support foot may be circular, square, etc.; the size and height of the cross-section can also be adjusted as desired. When the support leg is used, one end of the ejector rod 1, which is far away from the ball rolling sleeve 5, is connected with a supported object, the outer sleeve 2 is in contact with the ground, the supported object is supported by the outer sleeve 2 and the ejector rod 1 in threaded connection with the outer sleeve 2, and the universal ball 8 is hidden in the outer sleeve 2, so that the appearance of the furniture on the whole is not influenced by the universal ball of the support leg. When the supported object needs to be moved, the outer sleeve 2 is rotated, so that the outer sleeve 2 moves upwards on the ejector rod 1, the universal ball 8 slowly extends out of the outer sleeve 2 and is in contact with the ground in the process that the outer sleeve 2 moves on the ejector rod 1, and the supported object is supported by the universal ball 8 and the ejector rod 1. Because the universal ball 8 can roll in the inner cavity 7 to push the supported object, the supported object can be quickly moved by the rolling of the universal ball 8. After the supported object is moved to a proper position, the outer sleeve 2 is rotated reversely, so that the outer sleeve 2 is contacted with the ground, the universal ball 8 is hidden in the outer sleeve 2, and the supported object is stably supported by the outer sleeve 2 and the ejector rod 1. The supporting leg in the embodiment can ensure the stability of the supported object by using the outer sleeve 2 and the ejector rod 1 when the supported object does not need to be moved; when the supported object needs to be moved, the universal ball 8 and the ejector rod 1 are utilized, the purpose of convenient movement of the supported object can be guaranteed, and the problem that the traditional supporting legs cannot guarantee movement and stability is solved. In addition, be provided with first concave cambered surface 4 on the boss 3, be provided with second concave cambered surface 6 in the ball cover 5, universal ball 8 sets up and forms inner chamber 7 between first concave cambered surface 4 and second concave cambered surface 6, and universal ball 8 is bigger with the internal face area of contact of inner chamber 7 for universal ball 8's bearing capacity is stronger.

It should be noted that when the supporting foot is used and the ground is uneven, the outer sleeve 2 can be rotated to achieve the purpose of leveling the supported object. The connection between the jack 1 and the object to be supported can be made according to the material structure of the jack 1 and the object to be supported. For example, when the top bar 1 and the supported object are both metal structures, the top bar 1 and the supported object can be connected by welding. In addition, when the top rod 1 and the supported object are made of wood materials, a blind hole can be formed in the supported object, and one end, far away from the ball rolling sleeve 5, of the top rod 1 is inserted into the blind hole, so that the top rod 1 and the supported object are connected. Here, the connection relationship between the jack 1 and the supported object is not described. The ball sleeve 5 may be attached to the outer side of the boss 3 so as to be continuous with the boss 3, or may be attached to the outer side of the boss 3 so as to be continuous with the end of the carrier rod 1. However, the projection of the ball rolling sleeve 5 on the cross section of the ejector rod 1 is in the cross section of the ejector rod 1, so that the influence of the external dimension of the ball rolling sleeve 5 on the rotary motion of the outer sleeve 2 on the ejector rod 1 is avoided. In addition, the rolling ball sleeve 5 is communicated up and down, so that a notch structure is formed on the second concave cambered surface 6 and is used for enabling the universal ball 8 to protrude out of the lower end of the rolling ball sleeve 5. The notch structure is preferably a circular hole. Here, it should be further explained that the top rod 1 may be a solid rod or a hollow rod. The length of the outer sleeve 2 is such that when the outer sleeve 2 is rotated and the outer sleeve 2 moves upwards along the mandrel 1, the universal ball 8 will not abut against the supported object before extending out of the outer sleeve 2.

As shown in fig. 3 and 6, the inner diameter of the first concave arc surface 4 is gradually reduced from bottom to top; the inner diameter of the second concave cambered surface 6 is gradually reduced from top to bottom. It should be noted that the first concave arc surface 4 and the second concave arc surface 6 are adapted to the outer diameter of the universal ball 8. It should be noted that the second concave arc surface 6 has a similar structure to the first concave arc surface 4, except that the second concave arc surface 6 is concave downward, and the first concave arc surface 4 is concave upward.

As shown in fig. 1 and 7, a plurality of balls 13 are further disposed in the inner cavity 7, and the balls 13 are located on the upper side of the universal ball 8 and are in rolling fit with the upper surface of the universal ball 8. In the rolling process of the universal ball 8, the ball bearing 13 is matched with the universal ball 8 in a rolling way, so that the resistance of the universal ball 8 in the rolling process can be reduced.

As shown in fig. 1 and 7, an arc-shaped layered space is formed between the first concave arc surface 4 and the ball 8, the ball 13 is located in the layered space, and the ball 13 is in rolling fit with the first concave arc surface 4. In the present embodiment, since the balls 13 are installed in the layered space, and the balls 13 are in rolling engagement with the first concave arc surface 4, the friction force between the ball transfer ball 8 and the balls 13 during rolling can be further reduced.

As shown in fig. 1, 3, 6 and 7, the boss 3 is of a columnar structure, and the ball sleeve 5 is mounted on the outer side of the boss 3 and is in threaded connection with the boss. In this embodiment, boss 3 is the columnar structure, and the periphery side of boss 3 is provided with the external screw thread, keeps away the face in the upper end of ball cover 5 and is provided with the internal thread, through being connected between external screw thread and the internal thread, realizes the installation and the dismantlement of universal ball 8 fast. The universal ball 8 is worn when contacting with the ground in the rolling process, so that the friction between the rolling process of the universal ball 8 and the inner wall surface of the inner cavity 7 is increased, and the movement of the universal ball 8 is blocked. Because the ball cover 5 is in threaded connection or in interference fit sleeve connection with the boss 3, the purpose of quickly disassembling and assembling the ball cover 5 can be achieved, and the damaged universal ball 8 can be conveniently replaced.

As shown in fig. 1 and 2, the ball rolling device further comprises a base 9, and the base 9 is connected with one end of the push rod 1 far away from the ball rolling sleeve 5. In this embodiment, the base 9 is used for connecting with the supported object, the base 9 is generally installed at the bottom of the supported object, and the contact area between the base 9 and the supported object is larger, so that the supporting effect is better, and the stability is better.

As shown in fig. 1, 2, 7 and 8, the push rod 1 is provided with a deformable shielding structure 10, and the shielding structure 10 is arranged between the base 9 and the outer sleeve 2. In the embodiment, the shielding structure 10 shields the top rod 1 inside, so that the aesthetic feeling is improved, and meanwhile, impurities such as dust are prevented from falling into the threaded connection between the outer sleeve 2 and the top rod 1, so that the resistance of rotating the outer sleeve 2 is increased when the outer sleeve 2 is rotated. In addition, since the shielding structure 10 can be deformed, the outer sleeve 2 can press the shielding structure 10 during the upward movement of the outer sleeve 2 along the post rod 1 when the outer sleeve 2 is rotated.

In addition, the shielding structure 10 is a telescopic hose, the hose is sleeved on the ejector rod 1, one end of the hose is connected with the base 9, and the other end of the hose is connected with the outer sleeve 2. In the embodiment, one end of the hose is connected with the base 9, and the other end of the hose is connected with the outer sleeve 2, so that the ejector rod 1 in the hose can be perfectly shielded, and the aesthetic feeling is improved; meanwhile, dust and the like can be prevented from falling into the space between the outer sleeve 2 and the ejector rod 1. When the outer sleeve 2 is rotated, the outer sleeve 2 moves upwards along the mandril 1, and the hose is compressed due to the telescopic structure of the hose, and the state of being connected with the outer sleeve 2 is also kept at all times.

As shown in fig. 7 and 8, the base 9 includes a first base 91 and a threaded rod 92 fixedly mounted on the first base 91, and the first base 91 is connected to an end of the push rod 1 away from the rolling ball sleeve 5. In this embodiment, the threaded rod 92 is connected to the threaded mounting hole of the supported object, so that the base 9 can be quickly mounted on the supported object and is easy to detach.

As shown in fig. 1, 2, and 5, the base 9 includes a second base 93 and a connecting body disposed on the second base 93, the second base 93 is provided with a plurality of mounting holes 94, the connecting body 96 is provided with a threaded hole 95, and the threaded hole 95 is in threaded connection with one end of the carrier rod 1 far from the rolling ball sleeve 5. In this embodiment, the second base 93 is provided with a mounting hole 94 for facilitating the mounting of the base 9 on the supported object by a screw structure. It should be noted that, the connector is provided with a threaded hole 95, and the threaded hole 95 is in threaded connection with the ejector rod 1, so that the purpose of quickly disassembling the ejector rod 1 can be achieved, and meanwhile, the problem of occupied space of the supporting leg is solved.

As shown in fig. 1, 3, 4 and 7, a first external thread 11 is provided on the middle section of the mandrel 1, and a first internal thread 12 matching with the first external thread 11 is provided on the inner wall surface of the outer sleeve 2. In this embodiment, since the first external thread 11 is disposed in the middle section of the ejector rod 1, the strength of the threaded connection between the ejector rod 1 and the outer sleeve 2 can be ensured, and the friction force generated when the first external thread 11 and the first internal thread 12 rotate relatively can be reduced when the outer sleeve 2 is rotated.

Example 2

A piece of furniture comprises a furniture body, wherein the bottom of the furniture body is provided with the supporting legs in the embodiment 1. The number of the supporting legs is set according to the actual requirement of the furniture body.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not necessarily depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims

1. The utility model provides a supporting legs, its characterized in that includes ejector pin (1) and outer sleeve (2), outer sleeve (2) both ends are open, ejector pin (1) are installed inside outer sleeve (2) and rather than threaded connection, the lower extreme of ejector pin (1) is provided with boss (3), the bottom surface of boss (3) is provided with first concave arc surface (4), the outside of boss (3) still is equipped with ball cover (5), the tubbiness that link up from top to bottom is taken over in ball cover (5), the lower part of the internal face of ball cover (5) is provided with second concave arc surface (6), first concave arc surface (4) with form inner chamber (7) between second concave arc surface (6), be provided with rotatable universal ball (8) in inner chamber (7), universal ball (8) protrusion the lower extreme of ball cover (5).

2. A support foot according to claim 1, characterised in that the inner diameter of the first concave arc surface (4) tapers from bottom to top; the inner diameter of the second concave cambered surface (6) is gradually reduced from top to bottom.

3. A support foot according to claim 2, characterised in that a plurality of balls (13) are arranged in the inner chamber (7), which balls (13) are located on the upper side of the ball transfer unit (8) and are in rolling engagement with the upper surface of the ball transfer unit (8).

4. A support foot according to claim 3, characterised in that an arc-shaped layered space is formed between the first concave arc surface (4) and the ball (8), the ball (13) is located in the layered space, and the ball (13) is in rolling engagement with the first concave arc surface (4).

5. A supporting foot according to claim 1, characterized in that the boss (3) is a cylindrical structure, and the ball sleeve (5) is mounted on the outer side of the boss (3) and is in threaded connection or interference fit with the boss.

6. A supporting foot according to any one of claims 1-5, characterized in that the supporting foot also comprises a base (9), and the base (9) is connected with one end of the mandril (1) far away from the rolling ball sleeve (5).

7. A support foot according to claim 6, characterised in that the carrier rod (1) is provided with a deformable shielding structure (10), which shielding structure (10) is arranged between the base (9) and the outer sleeve (2).

8. A support foot according to claim 7, characterised in that the screening structure (10) is a telescopic hose which is fitted over the post rod (1), one end of the hose being connected to the base (9) and the other end of the hose being connected to the outer sleeve (2).

9. A supporting foot according to claim 6, characterized in that the base (9) comprises a first base (91) and a threaded rod (92) fixedly mounted on the first base (91), the first base (91) being connected to the end of the push rod (1) remote from the ball sleeve (5).

10. The supporting foot according to claim 6, characterized in that the base (9) comprises a second base (93) and a connecting body (96) arranged on the second base (93), the second base (93) is provided with a plurality of mounting holes (94), the connecting body (96) is provided with a threaded hole (95), and the threaded hole (95) is in threaded connection with one end of the mandril (1) far away from the rolling ball sleeve (5).

11. A support foot according to claim 1, characterised in that the middle section of the top bar (1) is provided with a first external thread (11), and the inner wall surface of the outer sleeve (2) is provided with a first internal thread (12) matching the first external thread (11).

12. A piece of furniture, characterized in that it comprises a furniture body, the bottom of which is provided with a supporting foot according to any one of claims 1 to 11.