Freezer spring hinge rotating shaft with groove
By designing a grooved structure on the freezer spring hinge shaft, using the ring groove and sliding tiles to maintain the storage and supply of lubricating oil, the quality problems caused by frictional noise of the traditional hinge shaft are solved, and the effect of continuous lubrication and extended service life is achieved.
Patent Information
- Application Number
- CN202421324366.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-12
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-06-12
AI Technical Summary
The traditional freezer spring hinge shaft is prone to extrusion friction noise after a long period of use, resulting in customer complaints and quality problems. Existing solutions such as reinforced plastic brackets or lubricating greases, all have problems such as wear or lubricating effects that are difficult to guarantee.
A freezer spring hinged rotary shaft with grooves is designed. The outer periphery of the shaft body is equipped with a ring groove. The top of the spring bracket can be detached with sliding tiles. A storage gap is formed between the ring groove and sliding tiles, and lubricating oil is filled to continuously lubricate. The supply of lubricating oil is ensured through the oil storage compartment and oil spill holes, and uniform coating of lubricating oil is achieved through the coating block and groove.
Through the design of ring grooves and sliding tiles, the continuous lubrication effect is maintained, and abnormal noise and wear between the rotor shaft and the spring bracket is avoided, the service life of the hinge is extended, and the quality of the product and customer satisfaction are improved.
Smart Images
Figure CN222649748U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of spring hinges, and in particular relates to a refrigerator spring hinge rotating shaft with a groove. Background Art
[0002] The cabinet door and the cabinet body in the freezer are hingedly connected by a spring hinge, and the spring hinge comprises a hinge body, a hinge shaft, a spring body and a spring bracket.
[0003] The main body of the traditional hinge shaft is a bare rod structure. Since the spring hinge of the freezer bears the weight of the door when the freezer is opened and closed, the spring bracket and the shaft frequently rotate and rub against each other with repeated opening and closing of the door. After about 50,000 uses, it will produce extrusion and friction noises, causing customer complaints and affecting the quality reputation.
[0004] At present, there are two main approaches to eliminate abnormal hinge noise in the industry: one is to use a reinforced plastic bracket, and the other is to apply lubricating grease. The solution of using a reinforced plastic bracket is that the bracket has to bear the pressure of the spring, and the friction with the shaft for a long time is easy to cause wear, which affects the service life of the hinge; while the solution of applying lubricating grease is that the grease on the contact surface between the bracket and the shaft will be squeezed out, and it is difficult to ensure long-term lubrication effect. Utility Model Content
[0005] The utility model aims to provide a refrigerator spring hinge shaft with a groove, so as to solve the problems raised in the above-mentioned background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a grooved spring hinge shaft for a refrigerator, comprising: a shaft body and a spring bracket which cooperate with each other and are arranged in a hinge body, an annular groove is provided on the outer periphery of the shaft body, a sliding shoe is detachably provided on the top of the spring bracket and can rotate in the annular groove along the axis of the shaft body as a circle center, and a storage gap filled with lubricating oil is formed between the annular groove and the sliding shoe.
[0007] Preferably, an oil storage bin for supplying oil to the storage gap is further provided in the shaft body, and a plurality of oil overflow holes extending into the oil storage bin are provided at the bottom of the annular groove, and one end of each of the oil overflow holes abuts against the inner wall of the sliding shoe.
[0008] Preferably, a plurality of coating blocks for coating lubricating oil are further provided on the inner wall of the sliding shoe, a plurality of grooves are opened on the inner wall of the sliding shoe at equal distances, and each of the coating blocks is respectively arranged in a corresponding groove.
[0009] Preferably, an oil filling hole extending into the oil storage tank is also formed on the top of the rotating shaft body, and an oil filling bolt is threaded into the oil filling hole.
[0010] Preferably, both sides of the spring bracket extend into the sliding shoe and are provided with recessed holes and threaded holes in sequence, and connecting bolts are threadedly provided between the recessed holes and the threaded holes.
[0011] Preferably, both ends of the rotating shaft body are provided with connecting parts hinged to the hinge body.
[0012] Compared with the prior art, the utility model has the following beneficial effects:
[0013] (1) The utility model adds an annular groove on the outer periphery of the rotating shaft body, so that a small amount of lubricating grease can always be stored in the groove, which continuously lubricates the contact surface between the spring bracket and the rotating shaft, thereby avoiding abnormal noise between the rotating shaft body and the spring bracket.
[0014] (2) The utility model adds an oil storage bin and an oil overflow hole, and the lubricating oil in the storage bin can be slowly injected into the storage gap through the oil overflow hole, thereby avoiding the loss of lubricating oil in the storage gap. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a three-dimensional diagram of the utility model;
[0016] Figure 2 It is a schematic diagram of the cooperation between the rotating shaft body and the spring bracket of the utility model;
[0017] Figure 3 It is a top view of the rotating shaft body of the utility model;
[0018] Figure 4 It is a cross-sectional view of the oil storage bin, the oil filling hole and the oil overflow hole of the utility model;
[0019] In the figure: 1. hinge body; 2. spring bracket; 3. shaft body; 4. recessed hole; 5. sliding shoe; 6. groove; 7. oil overflow hole; 8. oil storage bin; 9. ring groove; 10. coating block; 11. threaded hole; 12. connecting bolt; 13. oil filling bolt; 14. connecting part; 15. oil filling hole. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] Reference Figure 1-2As shown, the utility model provides a grooved spring hinge shaft for a refrigerator, comprising: a shaft body 3 and a spring bracket 2 which are arranged in a hinge body 1 and cooperate with each other, an annular groove 9 is provided on the outer periphery of the shaft body 3, a sliding shoe 5 which can be detachably rotated in the annular groove 9 along the axis of the shaft body 3 as a circle center is provided on the top of the spring bracket 2, and a storage gap filled with lubricating oil is formed between the annular groove 9 and the sliding shoe 5.
[0022] Combination Figure 1 and Figure 3 As shown, both ends of the rotating shaft body 3 are provided with connecting parts 14 hinged to the hinge body 1 .
[0023] As described above, when using the hinge body 1, the shaft body 3 and the spring bracket 2 provided by the utility model, the shaft body 3 is hinged on the hinge body 1 through the two connecting parts 14, and the spring bracket 2 is rotated and abutted in the shaft body 3 through the annular groove 9. During this process, the lubricating oil is filled between the annular groove 9 and the sliding shoe 5. The lubricating oil is used to prevent the sliding shoe 5 from rotating in the annular groove 9 to produce abnormal noise, and the sliding shoe 5 is used to prevent the spring bracket 2 from being worn.
[0024] Further, in order to facilitate the detachable installation of the sliding shoe 5 on the spring bracket 2, refer to Figure 2 As shown, both sides of the spring bracket 2 extend into the sliding shoe 5 and are provided with recessed holes 4 and threaded holes 11 in sequence, and a connecting bolt 12 is provided between the recessed holes 4 and the threaded holes 11. When the sliding shoe 5 is placed on the spring bracket 2, the threaded holes 11 on the sliding shoe 5 are aligned with the recessed holes 4 on the spring bracket 2, and the connecting bolt 12 is installed in the recessed holes 4 and the threaded holes 11, so that the sliding shoe 5 can be detachably installed on the spring bracket 2.
[0025] In the present utility model, combined with Figure 2 and Figure 4 As shown, the shaft body 3 of this embodiment is also provided with an oil storage bin 8 for supplying oil to the storage gap, and the bottom of the annular groove 9 is provided with a plurality of oil overflow holes 7 extending into the oil storage bin 8 , and one end of each oil overflow hole 7 abuts against the inner wall of the sliding shoe 5 .
[0026] As mentioned above, when using the oil storage bin 8 provided by the utility model, the lubricating oil can be stored in the shaft body 3 through the oil storage bin 8, and the lubricating oil in the oil storage bin 8 can be overflowed into the storage gap through the oil overflow hole 7, thereby avoiding the loss of lubricating oil in the storage gap.
[0027] Further, in order to facilitate the lubricating oil to be evenly applied to the ring groove 9, refer to Figure 2As shown, a plurality of coating blocks 10 for coating lubricating oil are also provided on the inner wall of the sliding shoe 5, and a plurality of grooves 6 are provided at equal distances on the inner wall of the sliding shoe 5, and each coating block 10 is respectively arranged in a corresponding groove 6. When the sliding shoe 5 on the spring bracket 2 rotates in the slide groove, the inner side of the annular groove 9 will pass through the plurality of coating blocks 10, and in this process, the coating blocks 10 will pass through the oil overflow hole 7, so that the lubricating oil overflowing from the oil overflow hole 7 is coated in the annular groove 9 through the coating blocks 10.
[0028] Further, in order to facilitate the addition of lubricating oil to the storage bin, refer to Figure 4 As shown, the top of the rotating shaft body 3 is also provided with an oil filling hole 15 extending into the oil storage tank 8, and an oil filling bolt 13 is screwed into the oil filling hole 15. The oil filling bolt 13 is taken out from the oil outlet hole, and lubricating oil can be added to the oil storage tank 8 through the oil filling hole 15. After the oil filling bolt 13 is installed in the oil filling hole 15, the lubricating oil is prevented from overflowing outward through the oil filling hole 15.
[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A spring hinge shaft for a refrigerator with a groove, characterized in that: include: A rotating shaft body (3) and a spring bracket (2) are arranged in a hinge body (1) and cooperate with each other. An annular groove (9) is provided on the outer periphery of the rotating shaft body (3). A sliding shoe (5) is detachably provided on the top of the spring bracket (2) and can rotate in the annular groove (9) along the axis of the rotating shaft body (3). A storage gap filled with lubricating oil is formed between the annular groove (9) and the sliding shoe (5).
2. The grooved spring hinge shaft for refrigerator according to claim 1, characterized in that: The shaft body (3) is also provided with an oil storage bin (8) for supplying oil to the storage gap. The bottom of the annular groove (9) is provided with a plurality of oil overflow holes (7) extending into the oil storage bin (8). One end of each of the oil overflow holes (7) abuts against the inner wall of the sliding shoe (5).
3. The grooved spring hinge shaft for refrigerator according to claim 2, characterized in that: The inner wall of the sliding shoe (5) is also provided with a plurality of coating blocks (10) for coating lubricating oil. The inner wall of the sliding shoe (5) is provided with a plurality of grooves (6) at equal distances, and each coating block (10) is respectively arranged in a corresponding groove (6).
4. The grooved spring hinge shaft for refrigerator according to claim 2, characterized in that: The top of the rotating shaft body (3) is also provided with an oil filling hole (15) extending into the oil storage bin (8), and an oil filling bolt (13) is screwed into the oil filling hole (15).
5. The grooved spring hinge shaft for refrigerator according to claim 1, characterized in that: Both sides of the spring bracket (2) extend into the sliding shoe (5) and are provided with recessed holes (4) and threaded holes (11) in sequence, and a connecting bolt (12) is threadedly connected between the recessed holes (4) and the threaded holes (11).
6. The grooved spring hinge shaft for refrigerator according to claim 1, characterized in that: Both ends of the rotating shaft body (3) are provided with connecting parts (14) hinged on the hinge body (1).