Tripod shaft

Abstract

The utility model belongs to the technical field of washing machine accessories, and particularly relates to a tripod shaft which comprises a tripod, a main shaft and a threaded column, a barrel is installed at the center point of the tripod, a first threaded hole is formed in the inner wall of the barrel, and a first through hole coaxial with the main shaft is formed; a second threaded hole is formed in the end, close to the cylinder body, of the main shaft; the two ends of the threaded column are connected with the first threaded hole and the second threaded hole respectively, and a limiting structure is arranged between the spindle and the barrel to limit relative rotation. The structural stability and strength of the connecting position are guaranteed through threaded column connection and axial limiting of the limiting structure, meanwhile, the tripod and the main shaft can be separated only by disassembling the threaded column from the side through the first through hole, the eroded tripod can be independently replaced, a fixing piece for fixing the main shaft does not need to be disassembled, the maintenance cost is effectively reduced, and disassembling convenience is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of washing machine accessories, and in particular relates to a tripod shaft. Background Technology

[0002] The tripod shaft is a core component inside the washing machine used to support the rotation of the inner drum and transmit power. Because the tripod is usually more likely to come into contact with alkaline detergents and humid environments, the shaft on the tripod is more prone to corrosion. This corrosion can lead to a decrease in structural strength, causing the tripod to crack or even break, thus affecting the use of the washing machine.

[0003] Traditional tripod shafts are usually welded to connect the tripod and the shaft. This means that when the tripod needs to be replaced due to damage, the shaft also needs to be replaced. Furthermore, when disassembling the tripod shaft, the fixings on the shaft usually need to be removed first before the inner cylinder and the tripod can be taken off, which makes the operation less convenient. Utility Model Content

[0004] The purpose of this utility model is to address the aforementioned technical problems by providing a tripod shaft that allows for easy replacement of the tripod itself when it is damaged, and also facilitates convenient disassembly of the inner cylinder and the tripod.

[0005] In view of this, the present invention provides a tripod shaft, comprising:

[0006] The tripod has a cylinder installed at its center point, and a first threaded hole is opened on the inner wall of the cylinder. The tripod and the cylinder are coaxially connected and have a first through hole.

[0007] The main shaft is coaxially connected to one end of the cylinder, and a second threaded hole is axially opened at one end near the cylinder.

[0008] The threaded column has two ends connected to the first threaded hole and the second threaded hole, respectively.

[0009] The main shaft is provided with a limiting structure between the main shaft and the cylinder, which is used to limit the relative rotation between the main shaft and the cylinder.

[0010] In the above technical solution, further:

[0011] The limiting structure includes a first tooth and a second tooth respectively disposed on the cylinder and the main shaft;

[0012] There are at least two of each of the first and second teeth, and they are interlocked.

[0013] In the above technical solution, further:

[0014] The first and second teeth are inclined and parallel on both radial sides.

[0015] In the above technical solution, further:

[0016] The threaded post has a first groove at one end near the first through hole, and the first groove is hexagonal, cross-shaped or straight.

[0017] Furthermore, the above technical solution also includes:

[0018] A plug, threadedly connected within a first threaded hole, is used to axially limit the threaded post.

[0019] In the above technical solution, further:

[0020] The end of the plug near the first through hole has a second groove, which is hexagonal, cross-shaped or straight.

[0021] In the above technical solution, further:

[0022] The tripod has multiple recesses, and reinforcing ribs are formed between two adjacent recesses.

[0023] In the above technical solution, further:

[0024] The tripod is equipped with an inner cylinder, and the inner cylinder is coaxial with the first through hole and has a second through hole, and a cover can be detachably installed at the second through hole.

[0025] The beneficial effects of this utility model are as follows:

[0026] 1. By designing the tripod and spindle separately, and using a threaded post to connect the two and a limiting structure to axially limit the threaded post, the structural stability and strength of the connection can be guaranteed. In addition, with the first through hole, the tripod and spindle can be separated by simply disassembling the threaded post from the first through hole side. This allows the tripod to be replaced separately when it is corroded, reducing maintenance costs. Furthermore, it eliminates the need to disassemble the fasteners used to fix the spindle, effectively improving the convenience of disassembling the inner cylinder and the tripod.

[0027] 2. By using the staggered first and second teeth in the limiting structure, the main shaft and the cylinder can be effectively limited. The structure is simple and easy to manufacture. Furthermore, by setting the first and second teeth to be inclined and parallel on both radial sides, the contact area of ​​the first and second teeth can be increased, which facilitates the distribution of force and reduces the possibility of damage at the connection.

[0028] 3. By setting the plug, the axial restraint effect of the threaded column can be improved, reducing the axial displacement of the threaded column caused by vibration and affecting the connection strength between the spindle and the cylinder. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of this utility model;

[0030] Figure 2 This is a side view of the present invention;

[0031] Figure 3 This is a utility model Figure 2 Sectional view at point AA;

[0032] Figure 4 This is an exploded view of the present invention;

[0033] Figure 5 This is a schematic diagram of the structure of this utility model connected to the inner cylinder;

[0034] Figure 6 This is a utility model Figure 5 Enlarged view of point B in the middle;

[0035] The markings in the diagram represent: 1. Tripod; 2. Cylinder; 3. First threaded hole; 4. First through hole; 5. Main shaft; 6. Second threaded hole; 7. Threaded post; 8. Limiting structure; 80. First tooth; 81. Second tooth; 9. First groove; 10. Plug; 11. Second groove; 12. Countersunk groove; 13. Reinforcing rib; 14. Inner cylinder; 15. Second through hole; 16. Cover. Detailed Implementation

[0036] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0037] Example 1:

[0038] This embodiment provides a tripod with one axis, including:

[0039] The tripod 1 has a cylinder 2 installed at its center point, and a first threaded hole 3 is provided on the inner wall of the cylinder 2. The tripod 1 and the cylinder 2 are coaxially provided with a first through hole 4.

[0040] The main shaft 5 is coaxially connected to one end of the cylinder 2, and a second threaded hole 6 is axially opened at one end near the cylinder 2.

[0041] The threaded post 7 is connected at both ends to the first threaded hole 3 and the second threaded hole 6, respectively.

[0042] Among them, a limiting structure 8 is provided between the main shaft 5 and the cylinder 2 to limit the relative rotation between the main shaft 5 and the cylinder 2, and the thread directions of the first threaded hole 3 and the second threaded hole 6 are the same.

[0043] Meanwhile, the cylinder 2 can be made of stainless steel and welded to the tripod 1. The materials of the tripod 1 and the spindle 5 are existing mature technologies. Specifically, the spindle 5 is made of stainless steel, and the tripod 1 is usually made of cast aluminum alloy for lightweight and low cost. This will not be elaborated here.

[0044] Furthermore, in order to maximize the structural strength, the inner wall thickness of the cylinder 2 and the main shaft 5 at the location of the second threaded hole 6 and the diameter of the threaded column 7 can be appropriately selected. The results obtained from traditional tests can be used, and will not be elaborated further.

[0045] As can be seen from this embodiment, by designing the tripod 1 and the spindle 5 separately, and using the threaded post 7 to connect the two and the limiting structure 8 to limit the axial direction of the threaded post 7, the structural stability and strength of the connection can be guaranteed. On the other hand, with the first through hole 4, the tripod 1 and the spindle 5 can be separated by disassembling the threaded post 7 from the first through hole 4 side. This allows the tripod 1 to be replaced separately when it is corroded, reducing maintenance costs. Furthermore, it does not require disassembling the fasteners used to fix the spindle 5, effectively improving the convenience of disassembling the inner cylinder 14 and the tripod 1.

[0046] The first threaded hole 3 and the second threaded hole 6 have the same thread direction, which makes it easier to install the threaded post 7 after the limiting structure 8 has performed the limiting, thereby improving the ease of installation.

[0047] Example 2:

[0048] This embodiment provides a tripod with one axis, which, in addition to the technical solutions of the above embodiments, also has the following technical features:

[0049] The limiting structure 8 includes a first tooth 80 and a second tooth 81 respectively disposed on the cylinder 2 and the main shaft 5;

[0050] Among them, there are at least two first teeth 80 and two second teeth 81, and they are staggered.

[0051] Meanwhile, the first tooth 80 and the cylinder 2 adopt an integrated structure, and the second tooth 81 and the main shaft 5 also adopt an integrated structure.

[0052] As can be seen from this embodiment, by using the first tooth 80 and the second tooth 81 in an alternating fit in the limiting structure 8, the main shaft 5 and the cylinder 2 can be effectively limited. The structure is simple and easy to manufacture.

[0053] Example 3:

[0054] This embodiment provides a tripod with one axis, which, in addition to the technical solutions of the above embodiments, also has the following technical features:

[0055] The first tooth 80 and the second tooth 81 are inclined and parallel on both radial sides.

[0056] As can be seen from this embodiment, by tilting and paralleling both sides of the first tooth 80 and the second tooth 81 in the radial direction, the contact area of ​​the first tooth 80 and the second tooth 81 can be increased, which facilitates the distribution of the force and reduces the possibility of damage at the connection.

[0057] Furthermore, the first tooth 80 and the second tooth 81 are both inclined and parallel on both radial sides, which also allows for axial installation of the two, thus improving the convenience of assembling and connecting the disassembled tripod 1 and the spindle 5.

[0058] Example 4:

[0059] This embodiment provides a tripod with one axis, which, in addition to the technical solutions of the above embodiments, also has the following technical features:

[0060] The threaded post 7 has a first groove 9 at one end near the first through hole 4, and the first groove 9 is hexagonal, cross-shaped or straight.

[0061] The first groove 9 can also be in the shape of a special wrench, such as a square or a pentagon, which is to prevent professional disassembly. This will not be elaborated on here.

[0062] As can be seen from this embodiment, the opening of the first groove 9 facilitates the application of force to the threaded rod, thereby improving the convenience of installing and disassembling the threaded rod. Furthermore, setting it to a regular hexagon, cross, or slotted shape allows the use of common wrenches, further enhancing convenience.

[0063] Example 5:

[0064] This embodiment provides a tripod with one axis, which, in addition to the technical solutions of the above embodiments, also has the following technical features, and further includes:

[0065] The plug 10 is threaded into the first threaded hole 3 and is used to axially limit the threaded post 7.

[0066] As can be seen from this embodiment, by setting the plug 10, not only is friction generated between it and the threaded post 7 and the thread gap eliminated, thus achieving a good anti-loosening effect, but it can also axially limit the threaded post 7, improve the installation stability of the threaded post 7, and prevent axial displacement due to vibration.

[0067] Example 6:

[0068] This embodiment provides a tripod with one axis, which, in addition to the technical solutions of the above embodiments, also has the following technical features:

[0069] The end of the plug 10 near the first through hole 4 is provided with a second groove 11, and the second groove 11 is a regular hexagon, a cross, or a straight line.

[0070] The second groove 11 can also be in the shape of a special wrench, such as a square or a pentagon, which is to prevent professional disassembly. This will not be elaborated here.

[0071] As can be seen from this embodiment, the opening of the second groove 11 facilitates the application of force to the plug 10, thereby improving the convenience of installing and disassembling the threaded rod. Furthermore, by setting it to a regular hexagon, cross, or slotted shape, a common wrench can be used, further improving convenience.

[0072] Example 7:

[0073] This embodiment provides a tripod with one axis, which, in addition to the technical solutions of the above embodiments, also has the following technical features:

[0074] The tripod 1 has multiple recesses 12, and a reinforcing rib 13 is formed between two adjacent recesses 12;

[0075] The reinforcing rib 13 and the tripod 1 are integrated into one structure.

[0076] As can be seen from this embodiment, by setting multiple sinkers 12, the tripod 1 can be made lighter and the manufacturing cost can be reduced. Furthermore, the reinforcing ribs 13 formed between the multiple sinkers 12 can ensure the structural strength of the tripod 1 and extend its service life.

[0077] Example 8:

[0078] This embodiment provides a tripod with one axis, which, in addition to the technical solutions of the above embodiments, also has the following technical features:

[0079] The tripod 1 is provided with an inner cylinder 14, and the inner cylinder 14 is coaxial with the first through hole 4 and has a second through hole 15, and a cover 16 is detachably installed at the second through hole 15.

[0080] The cover 16 and the inner cylinder 14 are connected by bolts, and a sealing gasket can be installed at the cover 16.

[0081] As can be seen from this embodiment, by opening a second through hole 15 on the inner drum 14 connected to the tripod 1, it is convenient to disassemble the tripod 1 from one side of the inner drum 14 when disassembling it, without having to disassemble the back side of the washing machine, thus ensuring the convenience of repairing and replacing the tripod 1.

[0082] Meanwhile, the cover 16 and the installed sealing gasket can prevent the second through hole 15 and the first through hole 4 from being sealed, thus preventing alkaline washing water from entering and causing corrosion to the first threaded hole 3 and the second threaded hole 6, affecting the disassembly of the tripod 1.

[0083] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A tripod shaft, characterized in that, include: The tripod (1) has a cylinder (2) installed at its center point, and a first threaded hole (3) is provided on the inner wall of the cylinder (2), and a first through hole (4) is provided on the tripod (1) and the cylinder (2) coaxially. The main shaft (5) is coaxially connected to one end of the cylinder (2), and a second threaded hole (6) is axially opened at one end near the cylinder (2). The threaded column (7) is connected at both ends to the first threaded hole (3) and the second threaded hole (6), respectively; The main shaft (5) and the cylinder (2) are provided with a limiting structure (8) to limit the relative rotation between the main shaft (5) and the cylinder (2).

2. The tripod shaft according to claim 1, characterized in that: The limiting structure (8) includes a first tooth (80) and a second tooth (81) respectively disposed on the cylinder (2) and the main shaft (5); Among them, there are at least two of the first tooth (80) and the second tooth (81), and they are staggered.

3. The tripod shaft according to claim 2, characterized in that: The first tooth (80) and the second tooth (81) are inclined and parallel on both radial sides.

4. The tripod shaft according to claim 1, characterized in that: The threaded post (7) has a first groove (9) at one end near the first through hole (4), and the first groove (9) is a regular hexagon, a cross, or a straight line.

5. The tripod shaft according to claim 1, characterized in that, Also includes: The plug (10) is threaded into the first threaded hole (3) and is used to axially limit the threaded column (7).

6. The tripod shaft according to claim 5, characterized in that: The plug (10) has a second groove (11) at one end near the first through hole (4), and the second groove (11) is a regular hexagon, a cross, or a straight line.

7. The tripod shaft according to claim 1, characterized in that: The tripod (1) has multiple recesses (12) and a reinforcing rib (13) is formed between two adjacent recesses (12).

8. The tripod shaft according to claim 1, characterized in that: The tripod (1) is provided with an inner cylinder (14), and the inner cylinder (14) is coaxial with the first through hole (4) and has a second through hole (15), and a cover (16) is detachably installed at the second through hole (15).

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