Refrigerator drawer roller

Abstract

The utility model relates to a refrigerator drawer roller, which belongs to the technical field of refrigerator accessories and comprises a roller body, a gland and a wheel shaft, the roller body is provided with a gland mounting groove, the gland is embedded into the gland mounting groove of the roller body, and the head of the wheel shaft is clamped between the gland and the roller body and movably connected with the gland and the roller body. According to the refrigerator drawer idler wheel, the pressing cover is embedded into the pressing cover installation groove of the idler wheel body to pre-fix the wheel shaft, then the idler wheel body is connected with the pressing cover in a welded mode, the length of a welding seam is shortened, the strength of the idler wheel after welding is improved, and the defective product rate is reduced; meanwhile, the welding seam position is not subjected to external force, and the service life of the roller is prolonged.

Description

Technical Field

[0001] The utility model relates to a refrigerator drawer roller and belongs to the technical field of refrigerator accessories. Background Art

[0002] The freezer compartment of a refrigerator typically features a drawer-style structure, with rollers installed at the bottom of the drawer, which cooperate with rollers inside the freezer compartment to ensure smooth movement. Existing drawer rollers typically consist of two half-wheels that are joined together, with the head of the axle clamped between the two halves. The joint is then welded to form a single unit. However, this structure only welds the outer edges of the two halves, resulting in a long weld seam. This reduces the strength of the roller after welding, making it prone to cracking and resulting in a high defective product rate. Furthermore, the weld seam is located on the active surface of the roller, making it susceptible to damage. Utility Model Content

[0003] In view of the above deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a refrigerator drawer roller, which can improve the strength of the roller after welding, reduce the defective product rate, and extend the service life of the roller.

[0004] The refrigerator drawer roller described in the utility model includes a roller body, a pressure cover and a wheel axle. The roller body is provided with a pressure cover mounting groove, the pressure cover is embedded in the pressure cover mounting groove of the roller body, and the head of the wheel axle is clamped between the pressure cover and the roller body and is movably connected to the two.

[0005] The technical solution of the utility model is to provide a refrigerator drawer roller, by arranging a pressure cover installation groove on the roller body, and embedding the pressure cover into the pressure cover installation groove to pre-fix the wheel axle, and then welding the roller body and the pressure cover to shorten the weld length and increase the welding strength; at the same time, the weld position is not subject to external force, so as to extend the service life of the roller.

[0006] Preferably, the gland mounting groove is provided with a step A and a step B, wherein the step A is used to position the wheel axle, and the step B is a welding surface, and the step B is located inside the roller body.

[0007] Preferably, a groove is provided on the rolling surface of the roller body, and the groove is adapted to the rolling track inside the refrigerator.

[0008] Preferably, the roller body is provided with a through hole A, and the pressure cover is provided with a through hole B. After installation, the through hole A and the through hole B are coaxial, and the through hole A and the through hole B radially position the wheel axle.

[0009] Preferably, the gland is provided with a step C, which cooperates with the step A to perform axial positioning on the axle.

[0010] Preferably, a positioning ring is provided at the head of the wheel axle for cooperating with step C and step A for axial positioning, a cross groove is also provided at the head of the wheel axle for installation, and a self-tapping thread is provided at the tail of the wheel axle.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] The refrigerator drawer roller described in the utility model pre-fixes the wheel axle by embedding the pressure cover into the pressure cover mounting groove of the roller body, and then welds the roller body and the pressure cover together, thereby shortening the weld length, improving the strength of the roller after welding, and reducing the defective product rate; at the same time, the weld position is not subject to external force, thereby extending the service life of the roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 It is a cross-sectional view of the utility model;

[0015] Figure 3 It is a three-dimensional diagram of the roller body;

[0016] Figure 4 It is a three-dimensional diagram of the gland;

[0017] Figure 5 It is a three-dimensional diagram of the axle.

[0018] In the figure: 1. Pressure cap; 11. Step C; 12. Through hole B; 2. Roller body; 21. Step A; 22. Step B; 23. Groove; 24. Through hole A; 3. Axle; 31. Cross groove; 32. Positioning ring; 33. Self-tapping thread. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to specific embodiments.

[0020] However, the description of the present invention is merely an embodiment of structural and even functional description, and the scope of rights of the present invention is not limited by the embodiments described herein.

[0021] For example, multiple embodiments may have various modifications and various forms, and it should be understood that the scope of rights of the present invention includes equivalents that can implement the technical idea.

[0022] like Figures 1 to 5 As shown, this embodiment is implemented through the following technical solution: it includes a roller body 2, a pressure cover 1 and a wheel axle 3, the roller body 2 is provided with a pressure cover mounting groove, the pressure cover 1 is embedded in the pressure cover mounting groove of the roller body 2, and the head of the wheel axle 3 is clamped between the pressure cover 1 and the roller body 2, and is movably connected to the two.

[0023] In this embodiment, the gland mounting groove is provided with steps A21 and B22. Step A21 is used to position the axle 3, and step B22 is a welding surface. Step B22 is located inside the roller body 2 so that the weld does not protrude from the surface of the roller body 2, preventing movement interference. The rolling surface of the roller body 2 is provided with a groove 23, which is adapted to the raceway inside the refrigerator. The roller body 2 is provided with a through hole A24, and the gland 1 is provided with a through hole B12. After installation, through hole A24 and through hole B12 are coaxial, and through holes A24 and B12 radially position the axle 3. The gland 1 is provided with a step C11, which cooperates with step A21 to axially position the axle 3. The head of the axle 3 is provided with a positioning ring 32 for axial positioning in conjunction with steps C11 and A21. The head of the axle 3 is also provided with a cross slot 31 for installation, and the tail of the axle 3 is provided with a self-tapping thread 33.

[0024] The installation method of the utility model is:

[0025] 1. Insert the axle 3 through the through hole A24 of the roller body 2, so that one side of the positioning ring 32 fits against the step A21;

[0026] 2. Press the gland 1 into the gland installation groove so that the step C11 fits against the other side of the positioning ring 32;

[0027] 3. Weld the gland 1 and the roller body 2 together.

[0028] Of course, the above content is only a preferred embodiment of the present invention and should not be considered to limit the scope of the embodiments of the present invention. The present invention is not limited to the above examples. Equivalent changes and improvements made by ordinary technicians in this technical field within the essential scope of the present invention should all fall within the scope of the patent of the present invention.

Claims

1. A refrigerator drawer roller, characterized in that: The roller body (2) comprises a roller main body (2), a pressure cover (1) and a wheel axle (3); the roller main body (2) is provided with a pressure cover mounting groove; the pressure cover (1) is embedded in the pressure cover mounting groove of the roller main body (2); the head of the wheel axle (3) is clamped between the pressure cover (1) and the roller main body (2) and is movably connected to the two.

2. The refrigerator drawer roller according to claim 1, characterized in that: The gland installation groove is provided with a step A (21) and a step B (22), wherein the step B (22) is a welding surface and is located inside the roller body (2).

3. The refrigerator drawer roller according to claim 2, characterized in that: A groove (23) is provided on the rolling surface of the roller body (2), and the groove (23) is adapted to the rolling path inside the refrigerator.

4. The refrigerator drawer roller according to claim 3, characterized in that: The roller body (2) is provided with a through hole A (24), and the pressure cover (1) is provided with a through hole B (12). After installation, the through hole A (24) and the through hole B (12) are coaxial, and the through hole A (24) and the through hole B (12) radially position the wheel shaft (3).

5. The refrigerator drawer roller according to claim 4, characterized in that: The gland (1) is provided with a step C (11), and the step C (11) cooperates with the step A (21) to perform axial positioning on the wheel shaft (3).

6. The refrigerator drawer roller according to claim 5, characterized in that: The head of the wheel axle (3) is provided with a positioning ring (32) for cooperating with the step C (11) and the step A (21) for axial positioning. The head of the wheel axle (3) is also provided with a cross groove (31) for installation. The tail of the wheel axle (3) is provided with a self-tapping thread (33).

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