Household appliance positioning transmission shaft

Abstract

The utility model discloses a household appliance positioning transmission shaft which comprises a round cover, the left side and the right side of the round cover are open, rotating blocks which are attached to each other are arranged on the left side and the right side of the round cover in a penetrating mode respectively, and a plurality of evenly-distributed wedge-shaped grooves which are meshed with each other are formed in the opposite sides of the two rotating blocks respectively. The sides, away from each other, of the two wedge-shaped grooves are connected with butt joint blocks through bolts, the sides, away from the rotating blocks, of the butt joint blocks are connected with butt joint rods through bolts, and the sides, away from the butt joint blocks, of the butt joint rods are connected with mounting shafts through bolts. According to the technical scheme, through mutual cooperation of the rotating block, the butt-joint block, the wedge-shaped groove, the buffer spring, the butt-joint rod and other components, the transmission direction can be switched according to needs, so that adjustment and switching can be effectively conducted, the transmission efficiency is improved, lubricating oil can be effectively injected in the transmission process, and the service life of the device is prolonged. And therefore, stable transmission can be realized, and the use efficiency and the working efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the field of transmission shaft technology, and in particular to a positioning transmission shaft for household appliances. Background Technology

[0002] Appliance positioning drive shafts are mechanical devices used in household appliances to transmit power and achieve precise positioning of components. Their core functions include power transmission: converting the rotational motion output by the motor into driving energy for mechanical components. However, existing appliance positioning drive shafts cannot switch transmission directions as needed, thus hindering effective adjustment and reducing transmission efficiency. Furthermore, they cannot effectively inject lubricating oil during transmission, resulting in uneven transmission and further reducing their efficiency. Therefore, we propose an appliance positioning drive shaft. Utility Model Content

[0003] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a positioning transmission shaft for home appliances that can switch the transmission direction as needed, thereby enabling effective adjustment and switching, improving its transmission efficiency, and enabling effective injection of lubricating oil during transmission, thereby enabling smooth transmission and improving its usage efficiency and working efficiency.

[0004] To achieve the above objectives, a positioning drive shaft for home appliances is provided, comprising: a circular cover with openings on both the left and right sides; rotating blocks that fit together are respectively provided on the left and right sides of the circular cover; and several evenly distributed interlocking wedge-shaped grooves are respectively provided on the opposite side of the two rotating blocks; a connecting block is bolted to the side of the two wedge-shaped grooves that are far apart from each other; a connecting rod is bolted to the side of the connecting block that is far apart from the rotating blocks; and a mounting shaft is bolted to the side of the connecting rod that is far apart from the connecting block.

[0005] According to the aforementioned appliance positioning transmission shaft, a ring is sleeved on the outside of the mounting shaft via a bearing, and a first mounting rod is bolted to the top and bottom of the ring.

[0006] According to the aforementioned appliance positioning transmission shaft, the top and bottom of the circular cover are respectively connected to a second mounting rod by bolts, and the two second mounting rods are arranged symmetrically about the central axis of the circular cover.

[0007] According to the aforementioned appliance positioning transmission shaft, the docking rod located on the right side is fitted with a buffer spring, and the left and right ends of the buffer spring are respectively connected to the docking block on the left side and the side wall of the ring.

[0008] According to the aforementioned appliance positioning transmission shaft, a circular groove is provided on the left side of the mounting shaft located on the right side, and the right end of the connecting rod on the left side extends into the circular groove. Limiting blocks are respectively connected to the outer wall of the mounting shaft located on the right side by bolts, and a limiting groove matching the limiting block is provided on the inner wall of the circular groove. A circular spring is connected between the right side of the mounting shaft located on the right side and the inner wall of the circular groove.

[0009] According to the aforementioned appliance positioning transmission shaft, the top of the mounting shaft is connected to a snap-fit ​​plate by bolts, and the two mounting shafts are arranged symmetrically about the central axis of the circular cover.

[0010] According to the aforementioned appliance positioning drive shaft, a insertion slot is provided on the left side near the top of the circular cover, and a lubricating oil box is fitted inside the insertion slot. A filling pipe is connected to the top of the lubricating oil box near the right side, and the top end of the filling pipe is connected to the outside of the circular cover. A flow pipe is connected to the right side of the lubricating oil box near the bottom. An oil drip groove connected to the flow pipe is provided at the top of the inner cavity of the circular cover. A pushing block is slidably connected inside the lubricating oil box. A crossbar is bolted to the left side of the pushing block. A through hole is provided on the left side of the lubricating oil box. The left side of the crossbar extends through the through hole to the left side of the circular cover. The left side of the crossbar is inclined. A tension spring is fitted on the crossbar. A vertical rod is bolted to the top of the rotating block located on the left side. A stop rod matching the inclined surface of the crossbar is bolted to the right side of the vertical rod near the top.

[0011] The above solution has at least one of the following beneficial effects: This technical solution, through the cooperation between components such as rotating block, docking block, wedge groove, buffer spring and docking rod, enables it to switch transmission direction as needed, thereby enabling effective adjustment and switching, improving its transmission efficiency, and enabling effective injection of lubricating oil during transmission, thereby enabling smooth transmission, improving its usage efficiency and working efficiency.

[0012] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0014] Figure 1 This is a front perspective view of the present invention;

[0015] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure;

[0016] Figure 3 for Figure 1 Enlarged view of point A in the image;

[0017] Figure 4 for Figure 1 A partial 3D view of the mounting shaft and mating blocks, etc.

[0018] Figure 5 for Figure 1 A schematic diagram of the left-side cross-sectional structure of components such as the middle limiting block and limiting groove.

[0019] Legend:

[0020] 1. Circular cover; 2. Rotating block; 3. Connecting block; 4. Buffer spring; 5. Connecting rod; 6. Circular ring; 7. Mounting shaft; 8. Snap-fit ​​plate; 9. First mounting rod; 10. Second mounting rod; 11. Wedge groove; 12. Circular groove; 13. Limiting block; 14. Limiting groove; 15. Circular spring; 16. Insertion groove; 17. Filling pipe; 18. Lubricating oil box; 19. Horizontal bar; 20. Vertical bar; 21. Abutting rod; 22. Pushing block; 23. Oil drip groove; 24. Flow pipe; 25. Tension spring. Detailed Implementation

[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0022] Reference Figures 1 to 5 This utility model provides a positioning transmission shaft for a household appliance, which includes a circular cover 1 with openings on both the left and right sides. Rotating blocks 2 that fit together are respectively inserted on the left and right sides of the circular cover 1. Several evenly distributed interlocking wedge-shaped grooves 11 are respectively opened on the opposite side of the two rotating blocks 2. A connecting block 3 is bolted to the side of the two wedge-shaped grooves 11 that is far apart from each other. A connecting rod 5 is bolted to the side of the connecting block 3 that is far apart from the rotating blocks 2. A mounting shaft 7 is bolted to the side of the connecting rod 5 that is far apart from the connecting block 3.

[0023] A ring 6 is sleeved on the outside of the mounting shaft 7 via a bearing. The top and bottom of the ring 6 are respectively bolted to a first mounting rod 9. The top and bottom of the cover 1 are respectively bolted to a second mounting rod 10. The two second mounting rods 10 are arranged symmetrically about the central axis of the cover 1. A buffer spring 4 is sleeved on the right-side connecting rod 5. The left and right ends of the buffer spring 4 are respectively connected to the left-side connecting block 3 and the side wall of the ring 6. A circular groove 12 is opened on the left side of the right-side mounting shaft 7. The right end of the left-side connecting rod 5 extends into the circular groove 12. A limit block 13 is bolted to the outer wall of the right-side mounting shaft 7. A limit groove 14 matching the limit block 13 is opened on the inner wall of the circular groove 12. A circular spring 15 is connected between the right side of the right-side mounting shaft 7 and the inner wall of the circular groove 12. A snap-fit ​​plate 8 is bolted to the top of the mounting shaft 7. The two mounting shafts 7 are arranged symmetrically about the central axis of the cover 1. This structure allows for switching of the transmission direction as needed, enabling effective adjustment and switching, and improving transmission efficiency.

[0024] A slot 16 is provided on the left side near the top of the circular cover 1, and a lubricating oil box 18 is fitted inside the slot 16. A filling pipe 17 is connected to the top of the lubricating oil box 18 near the right side. The top of the filling pipe 17 is connected to the outside of the circular cover 1. A flow pipe 24 is connected to the right side near the bottom of the lubricating oil box 18. A drip groove 23 connected to the flow pipe 24 is provided at the top of the inner cavity of the circular cover 1. A push block 22 is slidably connected inside the lubricating oil box 18. A crossbar 19 is bolted to the left side of the push block 22. A through hole is provided on the left side of the lubricating oil box 18. The left side of the crossbar 19 extends through the through hole to the left side of the circular cover 1. The left side of the crossbar 19 is inclined. A tension spring 25 is fitted on the crossbar 19. A vertical rod 20 is bolted to the top of the rotating block 2 on the left side. A stop rod 21 matching the inclined surface of the crossbar 19 is bolted to the right side near the top of the vertical rod 20. This structure allows for the effective injection of lubricating oil during transmission, resulting in smooth transmission and improved efficiency.

[0025] Working Principle: In this technical solution, the ring 6 is first installed in the desired position using the first mounting rod 9, and the cover 1 is installed in the desired position using the second mounting rod 10. Then, the mounting shaft 7 is connected to the drive shaft via the snap-fit ​​plate 8. During rotation, displacement occurs under the action of centrifugal force and the preload of the buffer spring 4 and the circular spring 15. During clockwise rotation, it squeezes into the narrow wedge-shaped area to form a rigid connection; during counterclockwise rotation, it slides into the wider area to disengage. The wedge-shaped groove's self-locking critical point is less than the friction angle to prevent accidental slippage, allowing for switching of the transmission direction as needed. This enables effective adjustment and switching, improving efficiency. This improves its transmission efficiency. The rotating block 2 on the left drives the vertical rod 20 and the abutting rod 21 to rotate. During the rotation, the abutting rod 21 abuts the horizontal rod 19 and moves it to the right. Under the elastic force of the tension spring 25, the horizontal rod 19 moves to the right or left. At this time, the horizontal rod 19 drives the pushing block 22 to move to the right or left in the lubricating oil box 18, so that the lubricating oil flows into the dripping groove 23 through the flow pipe 24. Then the dripping groove 23 drips the lubricating oil into the wedge groove 11, so that the lubricating oil can be effectively injected during the transmission process, thereby enabling it to transmit smoothly and improving its usage efficiency and working efficiency.

[0026] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A positioning drive shaft for household appliances, characterized in that, include: A circular cover (1) is provided with openings on the left and right sides. Rotating blocks (2) that fit together are respectively provided on the left and right sides of the circular cover (1). Several evenly distributed interlocking wedge-shaped grooves (11) are opened on the opposite side of the two rotating blocks (2). A docking block (3) is bolted to the side of the two wedge-shaped grooves (11) that are far apart. A docking rod (5) is bolted to the side of the docking block (3) that is far apart from the rotating block (2). An installation shaft (7) is bolted to the side of the docking rod (5) that is far apart from the docking block (3).

2. The appliance positioning drive shaft according to claim 1, characterized in that, The mounting shaft (7) is fitted with a ring (6) via a bearing sleeve. The top and bottom of the ring (6) are respectively connected to a first mounting rod (9) by bolts.

3. The appliance positioning drive shaft according to claim 1, characterized in that, The top and bottom of the dome (1) are respectively connected to second mounting rods (10) by bolts, and the two second mounting rods (10) are arranged symmetrically about the central axis of the dome (1).

4. The appliance positioning drive shaft according to claim 1, characterized in that, The docking rod (5) located on the right side is fitted with a buffer spring (4), and the left and right ends of the buffer spring (4) are respectively connected to the side wall of the docking block (3) and the ring (6) on the left side.

5. The appliance positioning drive shaft according to claim 1, characterized in that, A circular groove (12) is provided on the left side of the mounting shaft (7) located on the right side, and the right end of the connecting rod (5) on the left side extends into the circular groove (12). Limiting blocks (13) are connected to the outer wall of the mounting shaft (7) located on the right side by bolts. A limiting groove (14) matching the limiting block (13) is provided on the inner wall of the circular groove (12). A circular spring (15) is connected between the right side of the mounting shaft (7) located on the right side and the inner wall of the circular groove (12).

6. The appliance positioning drive shaft according to claim 1, characterized in that, The top of the mounting shaft (7) is connected to a snap-fit ​​plate (8) by bolts, and the two mounting shafts (7) are arranged symmetrically about the central axis of the cover (1).

7. The appliance positioning drive shaft according to claim 1, characterized in that, A insertion slot (16) is provided on the left side near the top of the circular cover (1), and a lubricating oil box (18) is fitted inside the insertion slot (16). A filling pipe (17) is connected to the top of the lubricating oil box (18) near the right side. The top of the filling pipe (17) is connected to the outside of the circular cover (1). A flow pipe (24) is connected to the right side of the lubricating oil box (18) near the bottom. An oil drip groove (23) is provided at the top of the inner cavity of the circular cover (1) and is connected to the flow pipe (24). A pusher is slidably connected inside the lubricating oil box (18). The moving block (22) has a horizontal bar (19) bolted to its left side, and a through hole is provided on the left side of the lubricating oil box (18). The left side of the horizontal bar (19) extends through the through hole to the left side of the round cover (1), and the left side of the horizontal bar (19) is set with an inclined surface. A tension spring (25) is sleeved on the horizontal bar (19). The top of the rotating block (2) on the left side is bolted to a vertical bar (20), and a stop bar (21) matching the inclined surface of the horizontal bar (19) is bolted to the right side of the vertical bar (20) near the top.

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