Guide rail structure for adjusting height of drawer and drawer cabinet
By setting a limiting projection on the upper side of the fixing seat, the problem of increasing static friction caused by the adjustment nut in the prior art when screwing to the bottom end is solved, and normal reverse screwing of the nut is realized, ensuring the normal function of drawer height adjustment and improving the reliability of the product.
Patent Information
- Application Number
- CN202421710253.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-18
- Publication Date
- 2025-06-03
- Estimated Expiration
- 2034-07-18
AI Technical Summary
In the existing guide rail structure with high and low adjustment of drawers, the adjustment nut on the side with burrs comes into contact with the fixed seat when screwed to the bottom, resulting in an increase in static friction force, making it difficult to screw the nut in reverse, affecting the adjustment function.
A limiting projection is provided on the upper side of the fixing seat to avoid surface contact between the adjustment nut and the fixing seat, and ensure that the nut can be twisted in reverse normally when it is screwed to the lowest end.
It effectively avoids surface contact between the adjustment nut and the fixing seat during the screwing process, ensures the normal reverse screwing ability of the nut, ensures the normal use function of the drawer height adjustment, and improves the reliability of the product.
Smart Images
Figure CN222929439U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of drawer cabinet rail structures, and particularly relates to a rail structure for adjusting the height of a drawer and a drawer cabinet. Background Art
[0002] The function of the rail structure for adjusting the height of a drawer is to adjust the height of the side of the drawer by screwing an adjusting nut, so as to make the drawer form a horizontal and stable state. However, during the manufacturing process of the adjusting nut, there is always a burr formed on one side end face that is not completely smoothed. When the adjusting nut is adjusted to the lowest end, the burr-bearing side end face contacts the fixed seat, forming a large static friction force, and it is very difficult to unscrew the adjusting nut in the reverse direction. As a result, the function of adjusting the height of the drawer by the rail fails. Summary of the Utility Model
[0003] The purpose of the utility model is to overcome the problem that when the adjusting nut on the burr-bearing side is screwed to form a surface contact with the fixed seat in the existing rail structure for adjusting the height of a drawer, it is difficult to unscrew the adjusting nut in the reverse direction, which affects its adjusting function. A rail structure for adjusting the height of a drawer and a drawer cabinet are provided, which avoid the surface contact between the adjusting nut and the fixed seat by arranging a limiting convex part on the upper side of the fixed seat.
[0004] To achieve the above purpose, the utility model adopts the following technical solutions:
[0005] A rail structure for adjusting the height of a drawer includes a first rail, a fixed seat, a screw rod, and an adjusting nut. The fixed seat is connected to the outside of the first rail. The screw rod is fixedly connected to the upper side of the fixed seat. The adjusting nut is vertically connected to the outside of the threaded part of the screw rod in a threaded manner. A limiting convex part is arranged on the upper side of the fixed seat and below the adjusting nut. The limiting convex part is used to limit the downward movement of the adjusting nut to the upper surface of the fixed seat. The adjusting nut is used to abut against the bottom of the drawer and adjust the relative height of the drawer by screwing the adjusting nut.
[0006] Compared with the prior art, in the rail structure for adjusting the height of a drawer of the utility model, by arranging a limiting convex part on the upper side of the fixed seat, when the adjusting nut is screwed to the lowest end, it contacts the limiting convex part on the fixed seat, which preferably avoids the surface contact between the adjusting nut and the fixed seat during the screwing process. Therefore, when the adjusting nut is screwed to the lowest end, it can be normally unscrewed in the reverse direction, ensuring the normal use function of the adjusting nut for adjusting the height of the drawer, and the product has good use reliability.
[0007] Furthermore, the limiting convex part is arranged on one side of the screw rod at the top of the fixed seat, and the limiting convex part is arranged on the other side of the screw rod at the bottom of the fixed seat. By setting like this, the fixed seat can be installed and connected to the side of the first rail whether it is used in the front or the back, and the product has a high tolerance rate for installation and connection.
[0008] Furthermore, the limiting convex part is formed by stamping the fixing seat; by setting it in this way, the limiting convex part is formed by stamping along with the fixing seat, and the processing method is convenient and the production efficiency is high.
[0009] Furthermore, the fixing seat is connected to the side of the first guide rail by welding.
[0010] Furthermore, the fixing seat is provided with a connection hole, and the screw is riveted in the connection hole; by setting it in this way, the assembly connection between the screw and the fixing seat is stable, and the two will not become loose.
[0011] Furthermore, it further includes a second guide rail, and the first guide rail and the second guide rail are slidably connected through a sliding structure; by setting it in this way, the sliding connection between the first guide rail and the second guide rail is stable and the sliding effect is smooth.
[0012] The drawer cabinet includes a cabinet body with an opening at the front side, a drawer, and two groups of guide rail structures for adjusting the height of the drawer. The two sides of the bottom of the drawer are respectively connected to the inside of the cabinet body through the guide rail structures for adjusting the height of the drawer. The bottom parts of the two sides of the drawer are respectively provided with guide holes with openings at the bottom. The upper part of the screw is placed in the corresponding guide hole, and the bottom of the drawer is placed on the upper side of the corresponding adjusting nut. By screwing the adjusting nut, the height of the corresponding side of the drawer is adjusted; by setting it in this way, by arranging a limiting convex part on the upper side of the fixing seat, when the adjusting nut is screwed to the lowest end, it contacts the limiting convex part on the fixing seat, which preferably avoids the formation of a surface contact between the adjusting nut and the fixing seat during the screwing process. Therefore, when the adjusting nut is screwed to the lowest end, it can still be screwed in the reverse direction normally, ensuring the normal use function of the adjusting nut for adjusting the height of the drawer, and the product has good use reliability.
[0013] Furthermore, the lower part of the side of the drawer is provided with a limiting hole arranged horizontally, and the first guide rail is provided with a limiting post extending into the limiting hole. The inner diameter of the limiting hole is larger than the outer diameter of the limiting post; by setting it in this way, while ensuring a vertical limiting effect between the first guide rail and the drawer, the drawer has an adjusting function in the vertical direction. Description of the Drawings
[0014] Figure 1 Schematic diagram of the first guide rail, fixing seat, screw and adjusting nut
[0015] Figure 2 Schematic diagram of the fixing seat, screw and adjusting nut
[0016] Figure 3 Bottom schematic diagram of the fixing seat
[0017] Figure 4 Exploded view of the guide rail structure for adjusting the height of the drawer
[0018] Figure 5Schematic diagram of the guide rail structure for adjusting the height of the drawer and the drawer
[0019] Figure 6 Schematic diagram of the drawer cabinet Specific implementation manners
[0020] The specific implementation manners of the present utility model will be described below in conjunction with the accompanying drawings. In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.
[0021] Embodiment 1:
[0022] Refer to Figures 1 to 6 , the guide rail structure 1 for adjusting the height of the drawer of the present utility model includes a first guide rail 11, a fixed seat 12, a screw 13 and an adjusting nut 14. The fixed seat 12 is connected to the outside of the first guide rail 11. The screw 13 is fixedly connected to the upper side of the fixed seat 12. The adjusting nut 14 is threadedly connected vertically to the outside of the threaded portion of the screw 13. A limiting convex portion 15 is provided on the upper side of the fixed seat 12 below the adjusting nut 14. The limiting convex portion 15 is used to limit the downward movement of the adjusting nut 14 to the upper surface of the fixed seat 12. The adjusting nut 14 is used to abut against the bottom of the drawer 22 and adjust the relative height of the drawer 22 by screwing the adjusting nut 14.
[0023] Compared with the prior art, for the guide rail structure 1 for adjusting the height of the drawer of the present utility model, by providing the limiting convex portion 15 on the upper side of the fixed seat 12, when the adjusting nut 14 is screwed to the lowest end, it contacts the limiting convex portion 15 on the fixed seat 12, which preferably avoids the formation of surface contact between the adjusting nut 14 and the fixed seat 12 during the screwing process. Thus, when the adjusting nut 14 is screwed to the lowest end, it can still be normally screwed in the reverse direction, ensuring the normal use function of the adjusting nut 14 for adjusting the height of the drawer 22, and the product has good use reliability.
[0024] Refer to Figures 1 to 3 , in an embodiment, the limiting convex portion 15 is provided on one side of the screw 13 at the top of the fixed seat 12, and the limiting convex portion 15 is provided on the other side of the screw 13 at the bottom of the fixed seat 12. By setting like this, the fixed seat 12 can be installed and connected to the side of the first guide rail 11 whether it is used on the front or the back, and the product has a high installation and connection error tolerance rate.
[0025] Refer to Figures 1 to 3, in one embodiment, the limiting convex portion 15 is formed by stamping the fixed seat 12; by setting it in this way, the limiting convex portion 15 is formed by stamping along with the fixed seat 12, the processing method is convenient, and the production efficiency is high.
[0026] See Figures 1 to 3 , in one embodiment, the fixed seat 12 is connected to the side of the first guide rail 11 by welding.
[0027] See Figure 1 , in one embodiment, the fixed seat 12 is provided with a connection hole 16, and the screw 13 is riveted in the connection hole 16; by setting it in this way, the screw 13 is firmly assembled and connected to the fixed seat 12, and the two will not become loose.
[0028] See Figure 4 , in one embodiment, it further includes a second guide rail 17, and the first guide rail 11 and the second guide rail 17 are slidably connected through a sliding structure 18; by setting it in this way, the first guide rail 11 and the second guide rail 17 are firmly slidably connected, and the sliding effect is smooth.
[0029] Embodiment Two:
[0030] See Figures 1 to 6 , the main purpose of this embodiment is to provide a drawer cabinet 2 applying the guide rail structure 1 for adjusting the height of the drawer in Embodiment One, including a cabinet body 21 with an opening at the front side, a drawer 22, and two groups of the guide rail structures 1 for adjusting the height of the drawer. The two sides of the bottom of the drawer 22 are respectively connected to the inside of the cabinet body 21 through the guide rail structures 1 for adjusting the height of the drawer. The bottom parts on both sides of the drawer 22 are respectively provided with guide holes with openings at the bottom. The upper part of the screw 13 is placed in the corresponding guide holes, and the bottom of the drawer 22 is placed on the upper side of the corresponding adjusting nut 14. By screwing the adjusting nut 14, the height of the corresponding side of the drawer 22 is adjusted; by setting it in this way, by arranging the limiting convex portion 15 on the upper side of the fixed seat 12, when the adjusting nut 14 is screwed to the lowest end, it contacts the limiting convex portion 15 on the fixed seat 12, which preferably avoids the formation of surface contact between the adjusting nut 14 and the fixed seat 12 during the screwing process. Therefore, when the adjusting nut 14 is screwed to the lowest end, it can also be normally screwed in the reverse direction, ensuring the normal use function of the adjusting nut 14 for adjusting the height of the drawer 22, and the product has good use reliability.
[0031] See Figure 5 and Figure 6 , in one embodiment, the lower part of the side of the drawer 22 is provided with a limiting hole 23 arranged horizontally, and the first guide rail 11 is provided with a limiting post 24 extending into the limiting hole 23, and the inner diameter of the limiting hole 23 is larger than the outer diameter of the limiting post 24; by setting it in this way, while enabling the first guide rail 11 and the drawer 22 to have a vertical limiting effect, it ensures that the drawer 22 has an adjustment function in the vertical direction.
[0032] Based on the disclosure and teachings of the above specification, those skilled in the art to which the present utility model pertains can also make changes and modifications to the above embodiments. Therefore, the present utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present utility model should also fall within the protection scope of the claims of the present utility model. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present utility model.
Claims
1. The guide rail structure for adjusting the height of the drawer is characterized by: It includes a first guide rail, a fixed seat, a screw and an adjusting nut, the fixed seat is connected to the outside of the first guide rail, the screw is fixedly connected to the upper side of the fixed seat, the adjusting nut is threadedly connected to the outside of the threaded part of the screw, a limiting protrusion is provided on the upper side of the fixed seat below the adjusting nut, the limiting protrusion is used to limit the adjusting nut from moving downward to the upper surface of the fixed seat, and the adjusting nut is used to abut against the bottom of the drawer and adjust the relative height of the drawer by screwing the adjusting nut.
2. The guide rail structure for adjusting the height of a drawer according to claim 1, characterized in that: The top of the fixing seat is located on one side of the screw and is provided with the limiting convex portion, and the bottom of the fixing seat is located on the other side of the screw and is provided with the limiting convex portion.
3. The guide rail structure for adjusting the height of a drawer according to claim 1 or 2, characterized in that: The limiting protrusion is formed by stamping the fixing seat.
4. The guide rail structure for adjusting the height of a drawer according to claim 1 or 2, characterized in that: The fixing seat is connected to the side of the first guide rail by welding.
5. The guide rail structure for adjusting the height of a drawer according to claim 1, characterized in that: The fixing seat is provided with a connecting hole, and the screw rod is riveted in the connecting hole.
6. The guide rail structure for adjusting the height of a drawer according to claim 1, characterized in that: It also includes a second guide rail, and the first guide rail is slidably connected to the second guide rail via a sliding structure.
7. A chest of drawers, characterized in that: It comprises a cabinet body with a front opening, a drawer and two groups of guide rail structures for adjusting the height of the drawer as described in any one of claims 1 to 6, the two sides of the bottom of the drawer are respectively connected to the cabinet body through the guide rail structures for adjusting the height of the drawer, the bottoms of the two sides of the drawer are respectively provided with guide holes with bottom openings, the upper parts of the screw rods are placed in the corresponding guide holes and the bottom of the drawer is placed on the upper side of the corresponding adjusting nuts, and the height of the corresponding side of the drawer is adjusted by screwing the adjusting nuts.
8. The drawer cabinet according to claim 7, characterized in that: A limit hole arranged in the transverse direction is provided at the lower part of the drawer side, and a limit column extending into the limit hole is provided at the first guide rail, and the inner diameter of the limit hole is larger than the outer diameter of the limit column.