Adjustable furniture metal connecting leg

Abstract

The utility model relates to the technical field of furniture metal connection, in particular to an adjustable furniture metal connecting foot which comprises a cross plate, bottom plates are symmetrically arranged at the upper end of the cross plate in a sliding mode, buffer springs are fixedly connected to the middles of the upper ends of the bottom plates, and buffer bases are fixedly connected to the upper ends of the buffer springs. An adjusting structure is fixedly installed at the upper end of the buffering base, a supporting plate is fixedly connected to the upper end of the adjusting structure, the opposite corners of the supporting plate are of an arc-shaped structure, and a fence is fixedly installed on the edge, away from the arc-shaped corners, of the supporting plate. The adjustable furniture can adapt to adjustment of various road surfaces, the use comfort can be improved, the stability of the furniture in the adjustment process is guaranteed, balance combination of the stable structure, convenient operation and multiple functions is achieved, and the requirements for high-precision adjustment and high-adaptability connection in the furniture industry are met.

Description

Technical Field

[0001] This utility model relates to the field of furniture metal connection technology, specifically an adjustable furniture metal connecting leg. Background Technology

[0002] In the furniture manufacturing industry, the stability, flexibility, and adaptability of furniture have always been the focus of industry attention. As an indispensable part of the furniture structure, the performance and design of furniture metal connecting legs directly affect the overall quality, service life, and user experience of the furniture.

[0003] Traditional furniture metal connecting legs mostly use a fixed structure, making it difficult to adjust their position, height, and other parameters once installed. However, in actual use, factors such as uneven ground, furniture layout adjustments, or personalized user needs often prevent fixed-height connecting legs from meeting diverse usage scenarios. When the ground has a slope, fixed-height connecting legs may cause furniture instability, affecting normal use and even posing safety hazards. When users need to rearrange the furniture, fixed-height connecting legs are difficult to adapt to the new layout requirements, potentially requiring replacement of the connecting legs or adjustments to the entire furniture structure, increasing usage costs and operational complexity. Utility Model Content

[0004] To address the aforementioned issues, this application provides an adjustable metal connecting leg for furniture. By designing an independent and freely adjustable connection structure, it not only adapts to the installation of furniture of different sizes but also copes with adjustments on various surfaces, improves user comfort, and ensures the stability of the furniture during adjustment. It achieves a balanced combination of structural stability, convenient operation, and diverse functions, meeting the furniture industry's needs for high-precision adjustment and highly adaptable connections.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: an adjustable furniture metal connecting leg, including a cross plate, a base plate symmetrically and slidably arranged on the upper end of the cross plate, a buffer spring fixedly connected to the middle of the upper end of the base plate, a buffer base fixedly connected to the upper end of the buffer spring, an adjustment structure fixedly installed on the upper end of the buffer base, a support plate fixedly connected to the upper end of the adjustment structure, the opposite corners of the support plate are arc-shaped, and a guard is fixedly installed on the edge of the support plate away from the arc-shaped corner.

[0006] Preferably, a cross-shaped groove is provided in the middle of the upper surface of the cross plate, and insertion holes are symmetrically provided on both sides of the cross-shaped groove.

[0007] Preferably, a sliding column is fixedly installed in the middle of the lower end face of the base plate, and the lower end face of the sliding column slides against the bottom of the cross-shaped sliding groove.

[0008] Preferably, the lower end face of the slide column is uniformly provided with metal balls.

[0009] Preferably, the base plate has symmetrically provided limiting holes, and a rod for fixing the base plate to the cross plate is inserted into the limiting holes.

[0010] Preferably, the diameters of the insertion hole and the limiting hole are equal.

[0011] Preferably, the adjustment structure includes a rectangular housing, with the rectangular housing fixedly installed at the upper end of the base plate, and an adjustment shaft rotatably installed inside the rectangular housing near the lower end. The end of the adjustment shaft extends to the outside of the rectangular housing and is fixedly connected to a side plate. A crank is fixedly connected to the upper end of the side wall of the side plate, and an active bevel gear is fixedly installed on the adjustment shaft inside the rectangular housing.

[0012] Preferably, the crank handle is provided with a crank handle sleeve, which is made of rubber material.

[0013] Preferably, a threaded rod is rotatably provided on the top of the rectangular shell, and a driven bevel gear is fixedly connected to the lower end of the threaded rod. The driven bevel gear and the driving bevel gear mesh with each other. An adjusting plate is screwed to the middle of the threaded rod, and an adjusting rod is fixedly connected to the upper corner of the adjusting plate. The upper end of the adjusting rod extends to the outside of the rectangular shell and is fixedly connected to the support plate.

[0014] Preferably, the inner sidewall of the rectangular shell is symmetrically provided with limiting grooves, and the sidewall of the adjusting plate is symmetrically installed with limiting plates, with the end of the limiting plate away from the adjusting plate slidably installed in the limiting groove.

[0015] The beneficial effects of this utility model are as follows:

[0016] This utility model discloses an adjustable metal connecting leg for furniture. The sliding design of the base plate allows for flexible adjustment of the adjustment structure position according to the furniture size, adapting to different furniture structures. The adjustment structure achieves precise height adjustment of the support plate through bevel gear transmission, meeting the leveling requirements of various uneven ground. The combination design of the buffer spring and buffer base effectively absorbs vibration and reduces the risk of damage to the furniture caused by external impact. The cooperation between the plug rod and the limiting hole ensures the stability of the base plate on the cross plate and avoids connection failure due to furniture movement. The design of the guard not only enhances the stability of the furniture but also prevents the furniture from slipping during vertical adjustment. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2This is a schematic diagram of the three-dimensional connection structure between a single adjustment structure and the cross plate in this utility model;

[0020] Figure 3 This is a three-dimensional connection structure diagram of the cross plate, base plate, buffer spring and buffer base in this utility model;

[0021] Figure 4 This is a schematic diagram of the three-dimensional connection structure between the buffer base, adjustment structure, support plate and enclosure in this utility model.

[0022] In the picture:

[0023] 1. Cross plate; 11. Cross-shaped groove; 12. Insertion hole; 2. Base plate; 21. Sliding column; 211. Metal ball bearing; 22. Limiting hole; 23. Insertion rod; 3. Buffer spring; 4. Buffer base;

[0024] 5. Adjustment structure; 51. Rectangular housing; 52. Adjustment shaft; 53. Side plate; 54. Handle; 541. Handle sleeve; 55. Driving bevel gear; 56. Threaded rod; 57. Driven bevel gear; 58. Adjustment plate; 59. Adjustment rod; 510. Limiting groove; 511. Limiting plate; 6. Support plate; 7. Enclosure. Detailed Implementation

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the present utility model will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the accompanying drawings is only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. It should be noted that the description of these embodiments is used to help understand this utility model, but does not constitute a limitation on this utility model.

[0026] like Figure 1 - Figure 4 As shown, an adjustable metal connecting leg for furniture includes a cross plate 1. A base plate 2 is symmetrically slidably disposed on the upper end of the cross plate 1. A buffer spring 3 is fixedly connected to the middle of the upper end of the base plate 2. A buffer base 4 is fixedly connected to the upper end of the buffer spring 3. An adjustment structure 5 is fixedly installed on the upper end of the buffer base 4. A support plate 6 is fixedly connected to the upper end of the adjustment structure 5. The opposite corners of the support plate 6 are arc-shaped. A guardrail 7 is fixedly installed on the edge of the support plate 6 away from the arc-shaped corner.

[0027] The cross plate 1 has a cross-shaped groove 11 in the middle of the upper end surface, and insertion holes 12 are symmetrically opened on both sides of the cross-shaped groove 11.

[0028] A sliding column 21 is fixedly installed in the middle of the lower end face of the base plate 2. The lower end face of the sliding column 21 slides against the bottom of the cross-shaped sliding groove 11. Metal balls 211 are evenly arranged on the lower end face of the sliding column 21. Limiting holes 22 are symmetrically opened on the base plate 2. Insertion rods 23 for fixing the base plate 2 to the cross plate 1 are inserted into the limiting holes 22. The diameters of the insertion holes 12 and the limiting holes 22 are equal.

[0029] The adjustment structure 5 includes a rectangular housing 51. The rectangular housing 51 is fixedly installed on the upper end of the base plate 2. An adjustment shaft 52 is rotatably installed inside the rectangular housing 51 near the lower end. The end of the adjustment shaft 52 extends to the outside of the rectangular housing 51 and is fixedly connected to a side plate 53. A crank handle 54 is fixedly connected to the upper end of the side wall of the side plate 53. A crank handle sleeve 541 is provided on the outside of the crank handle 54. The crank handle sleeve 541 is made of rubber material. An active bevel gear 55 is fixedly installed on the adjustment shaft 52 inside the rectangular housing 51.

[0030] The top of the rectangular shell 51 is rotatably provided with a threaded rod 56, and the lower end of the threaded rod 56 is fixedly connected to a driven bevel gear 57. The driven bevel gear 57 and the driving bevel gear 55 mesh with each other. An adjusting plate 58 is screwed to the middle of the threaded rod 56. An adjusting rod 59 is fixedly connected to the upper corner of the adjusting plate 58. The upper end of the adjusting rod 59 extends to the outside of the rectangular shell 51 and is fixedly connected to the support plate 6.

[0031] The rectangular shell 51 has symmetrically formed limiting grooves 510 on its inner sidewall, and the adjusting plate 58 has symmetrically installed limiting plates 511 on its sidewall. The end of the limiting plate 511 away from the adjusting plate 58 is slidably installed in the limiting groove 510.

[0032] Working principle: The base plate 2 slides in the cross-shaped groove 11 on the upper end of the cross plate 1 via the sliding column 21 on the lower end face to adjust the position of the base plate 2 on the cross plate 1. The metal ball 211 on the lower end face of the sliding column 21 helps to reduce the friction during sliding, making the adjustment process smoother. When the base plate 2 moves to the appropriate position, the insertion rod 23 is inserted into the limiting hole 22 and the corresponding insertion hole 12 to fix the position of the base plate 2.

[0033] The buffer spring 3 connects the base plate 2 and the buffer base 4. When the support plate 6 is subjected to furniture pressure, the buffer spring 3 can play a buffering role, reducing the impact force on the furniture and reducing the impact of furniture vibration on the adjustment structure 5. The adjustment structure 5 is used to adjust the height of the support plate 6. The specific adjustment process is as follows: by manually turning the crank handle 54, the side plate 53 and the adjustment shaft 52 are rotated, which in turn drives the active bevel gear 55 to rotate. The active bevel gear 55 drives the driven bevel gear 57 and the threaded rod 56 to rotate. Under the action of the limiting plate 510, the adjustment plate 58 will move up and down along the threaded rod 56, thereby driving the adjustment rod 59 to move up and down and achieve the purpose of adjusting the height of the support plate 6, thus realizing the adjustment of the support height. The limiting plate 511 slides in the limiting groove 510, which can prevent the adjustment plate 58 from deviating during the lifting and lowering process and ensure the stability of the adjustment process. The design of the enclosure 7 can prevent the furniture from slipping during the up and down adjustment process.

[0034] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. An adjustable metal connecting leg for furniture, comprising a cross plate (1), characterized in that: The cross plate (1) is symmetrically slidably provided with a base plate (2) at the upper end. A buffer spring (3) is fixedly connected to the middle of the upper end of the base plate (2). A buffer base (4) is fixedly connected to the upper end of the buffer spring (3). An adjustment structure (5) is fixedly installed on the upper end of the buffer base (4). A support plate (6) is fixedly connected to the upper end of the adjustment structure (5). The opposite corners of the support plate (6) are arc-shaped. A barrier (7) is fixedly installed on the edge of the support plate (6) away from the arc-shaped corner.

2. The adjustable furniture metal connecting leg as described in claim 1, characterized in that: The cross plate (1) has a cross-shaped groove (11) in the middle of the upper end surface, and insertion holes (12) are symmetrically opened on both sides of the cross-shaped groove (11).

3. An adjustable furniture metal connecting leg as described in claim 2, characterized in that: A sliding column (21) is fixedly installed in the middle of the lower end face of the base plate (2), and the lower end face of the sliding column (21) slides against the bottom of the cross-shaped sliding groove (11).

4. An adjustable furniture metal connecting leg as described in claim 3, characterized in that: The lower end face of the slide column (21) is uniformly provided with metal balls (211).

5. An adjustable furniture metal connecting leg as described in claim 2, characterized in that: The base plate (2) is provided with symmetrical limit holes (22), and a rod (23) for fixing the base plate (2) to the cross plate (1) is inserted into the limit holes (22).

6. An adjustable furniture metal connecting leg as described in claim 5, characterized in that: The diameters of the insertion hole (12) and the limiting hole (22) are equal.

7. An adjustable furniture metal connecting leg as described in claim 1, characterized in that: The adjustment structure (5) includes a rectangular shell (51), a rectangular shell (51) is fixedly installed on the upper end of the base plate (2), an adjustment shaft (52) is rotatably installed inside the rectangular shell (51) near the lower end, the end of the adjustment shaft (52) extends to the outside of the rectangular shell (51) and is fixedly connected to a side plate (53), a crank (54) is fixedly connected to the upper end of the side wall of the side plate (53), and an active bevel gear (55) is fixedly installed on the adjustment shaft (52) inside the rectangular shell (51).

8. An adjustable furniture metal connecting leg as described in claim 7, characterized in that: The crank handle (54) is provided with a crank handle sleeve (541) on the outside, and the crank handle sleeve (541) is made of rubber material.

9. An adjustable furniture metal connecting leg as described in claim 7, characterized in that: The top of the rectangular shell (51) is rotatably provided with a threaded rod (56), and the lower end of the threaded rod (56) is fixedly connected to a driven bevel gear (57). The driven bevel gear (57) and the driving bevel gear (55) mesh with each other. An adjusting plate (58) is screwed to the middle of the threaded rod (56). An adjusting rod (59) is fixedly connected to the upper corner of the adjusting plate (58). The upper end of the adjusting rod (59) extends to the outside of the rectangular shell (51) and is fixedly connected to the support plate (6).

10. An adjustable furniture metal connecting leg as described in claim 9, characterized in that: The rectangular shell (51) has symmetrically opened limit grooves (510) on its inner sidewall, and limit plates (511) are symmetrically installed on the sidewall of the adjusting plate (58). The end of the limit plate (511) away from the adjusting plate (58) is slidably installed in the limit groove (510).

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