Sewing machine rotating shaft sleeve capable of absorbing redundant lubricating oil

Abstract

The sewing machine rotating shaft sleeve capable of absorbing the redundant lubricating oil comprises a rotating shaft sleeve body and a connecting cover arranged on the left side of the rotating shaft sleeve body, a rotating shaft body is arranged on the inner side of the rotating shaft sleeve body, a connecting block is arranged on the right side of the rotating shaft sleeve body, and a fixing ring is arranged on the right side of the connecting block. According to the sewing machine rotating shaft sleeve capable of absorbing the redundant lubricating oil, the redundant leaked lubricating oil of a device can be conveniently absorbed in the using process, so that the redundant lubricating oil is not prone to leaking outwards along a gap formed by connecting a sewing machine rotating shaft and the sewing machine rotating shaft sleeve, and the situation that the attractiveness of the device is affected is avoided; leaked lubricating oil is prevented from entering other parts, the service life of the other parts of a machine body is guaranteed, meanwhile, a one-way oil adding structure is arranged, so that the lubricating oil is not prone to leaking towards the outer side of the device along an oil adding opening, the overall sealing performance of the device is improved, and the better using effect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of sewing machine shaft technology, specifically a sewing machine shaft bushing that can absorb excess lubricating oil. Background Technology

[0002] A sewing machine spindle bushing is a protective sleeve used to protect and connect the spindle of a sewing machine. Its main function is to reduce wear and friction on the spindle, protect the spindle, and ensure that the spindle can rotate freely within the sleeve to achieve the ideal working environment for the spindle.

[0003] The authorized announcement number CN215171571U provides a bushing for easy disassembly of a rotating shaft. It has a passageway in which a second spring is located and pushes the movable blocks on both sides outward. This causes the movable blocks on both sides of the concave hole to move the clamping block and clamp the first slot to fix the assembled gear, thereby installing the assembled gear. This makes the installation of the rotating shaft more convenient and facilitates the removal and installation of the rotating shaft during maintenance. This method enables quick disassembly and assembly of the device.

[0004] However, the aforementioned shaft bushing did not have any parts to absorb excess lubricating oil during assembly and use. This caused excess lubricating oil to easily leak outwards along the gap between the sewing machine shaft and the sewing machine shaft bushing, affecting the aesthetics of the device. In addition, the leaked lubricating oil could easily enter the interior of other parts, affecting the service life of other parts of the machine.

[0005] Meanwhile, the bushing does not have a one-way lubrication structure when it needs to be lubricated, which makes it easy for lubricating oil to leak out of the device along the lubrication port, affecting the overall sealing of the device and reducing the lubrication efficiency of the device.

[0006] Therefore, in order to address the above problems, there is an urgent need for innovative design based on the existing sewing machine spindle bushing. Utility Model Content

[0007] The purpose of this invention is to provide a sewing machine shaft bushing that can absorb excess lubricating oil, thereby solving the problems mentioned in the background art, such as the inconvenience of absorbing excess lubricating oil during use, which leads to excess lubricating oil easily leaking outward along the gap between the sewing machine shaft and the sewing machine shaft bushing, affecting the aesthetics of the device and allowing leaked lubricating oil to enter other parts, affecting the service life of other parts of the machine. In addition, the lack of a one-way oil filling structure causes lubricating oil to easily leak outward along the oil filling port, affecting the overall sealing of the device.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a sewing machine spindle bushing capable of absorbing excess lubricating oil, comprising a spindle bushing body and a connecting cover disposed on the left side of the spindle bushing body, wherein a spindle body is disposed on the inner side of the spindle bushing body, a connecting block is disposed on the right side of the spindle bushing body, a fixing ring is disposed on the right side of the connecting block, and a first limiting rod is disposed on the outer side of the fixing ring.

[0009] Also includes:

[0010] An oiling assembly is installed on the upper side of the rotating shaft sleeve body. An oil-absorbing pad is provided in the middle of the connecting cover, and a first positioning block is provided on the outer side of the oil-absorbing pad.

[0011] The second sealing ring is engaged and fixed at the gap between the connecting cover and the rotating shaft body, and a third sealing ring is provided at the gap between the connecting cover and the rotating shaft body. A second positioning block is provided on the inner side of the connecting cover, and a second limiting rod is connected to the right side of the connecting cover.

[0012] In one possible implementation, the oiling assembly includes a support frame mounted on the upper side of the shaft sleeve body, a damper is provided in the middle of the support frame, a blocking block is connected to the upper side of the damper, and a first sealing ring is provided in the middle of the blocking block.

[0013] In one possible implementation, the blocking block is slidably mounted on the upper side of the support frame, and the blocking block, in conjunction with the sealing performance of the first sealing ring, opens and closes the opening on its upper side.

[0014] In one possible implementation, the oil-absorbing pad is engaged with the first positioning block to fix the oil-absorbing pad in the middle of the first positioning block, and the first positioning block is symmetrically arranged about the central axis of the oil-absorbing pad.

[0015] In one possible implementation, the second positioning block has a "T" shaped structure and is symmetrically arranged about the central axis of the connecting cover.

[0016] In one possible implementation, the second limiting rod is threadedly connected to both the rotating sleeve body and the connecting cover, and the second limiting rod is set at an equal angle on the right side of the connecting cover.

[0017] In one possible implementation, a positioning ring is provided inside the rotating sleeve body, and an oil storage sleeve is provided on the left side of the positioning ring. The oil storage sleeve has an oil storage cavity inside, and an vent is provided on the outside of the oil storage cavity.

[0018] In one possible implementation, the oil storage sleeve, the positioning ring, and the connecting cover are all engaged with each other, and the oil storage cavity is formed by multiple holes at equal intervals inside the oil storage sleeve.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows: This sewing machine shaft bushing, which can absorb excess lubricating oil, facilitates the absorption and treatment of excess lubricating oil leaking from the device during use. This prevents excess lubricating oil from leaking outward along the gap between the sewing machine shaft and the sewing machine shaft bushing, thus avoiding affecting the aesthetics of the device and preventing leaked lubricating oil from entering other parts, ensuring the service life of other parts of the machine. Furthermore, the one-way oil filling structure prevents lubricating oil from leaking outward along the oil filling port, improving the overall sealing of the device and resulting in better performance. Specific details are as follows:

[0020] 1. The connecting cover is fixed on the left side of the rotating shaft sleeve body by the second positioning block and the second limiting rod. The oil absorption pad set in the middle of the connecting cover absorbs the excess lubricating oil that overflows from the gap between the second sealing ring and the rotating shaft body, so as to prevent excess lubricating oil from overflowing to the outside of the device and affecting the overall aesthetics of the device, and reducing the cleaning and maintenance costs of the device.

[0021] 2. By using a damper in conjunction with a support frame to push the blocking block and the first sealing ring to move upwards, the upper opening of the rotating shaft sleeve body is sealed and closed, preventing lubricating oil from overflowing upwards and improving the overall sealing performance of the device.

[0022] 3. The lubricating oil entering the device is stored and used through the oil storage sleeve and oil storage chamber. This allows the lubricating oil to slowly diffuse outward along the vent inside the oil storage sleeve and oil storage chamber, improving the storage and use efficiency of the lubricating oil and reducing the consumption of lubricating oil. Attached Figure Description

[0023] Figure 1 This is a frontal cross-sectional view of the present invention.

[0024] Figure 2 This is a side view sectional structural diagram of the present invention;

[0025] Figure 3 This is a top view sectional structural diagram of the present invention;

[0026] Figure 4 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0027] Figure 5 This is a schematic diagram of the overall structure connecting the oil storage sleeve and the oil storage cavity of this utility model.

[0028] In the diagram: 1. Rotary shaft sleeve body; 2. Connecting block; 3. Fixing ring; 4. First limiting rod; 5. Positioning ring; 6. Oil reservoir sleeve; 7. Oil reservoir cavity; 8. Exhaust port; 9. Oil filling assembly; 901. Support frame; 902. Damper; 903. Blocking block; 904. First sealing ring; 10. Rotary shaft body; 11. Connecting cover; 12. Oil suction pad; 13. First positioning block; 14. Second sealing ring; 15. Third sealing ring; 16. Second positioning block; 17. Second limiting rod. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1-5 This utility model provides a technical solution: a sewing machine spindle bushing that can absorb excess lubricating oil, comprising: a spindle bushing body 1, a connecting block 2, a fixing ring 3, a first limiting rod 4, a positioning ring 5, an oil storage sleeve 6, an oil storage cavity 7, an escaping port 8, an oil filling assembly 9, a support frame 901, a damper 902, a blocking block 903, a first sealing ring 904, a spindle body 10, a connecting cover 11, an oil-absorbing pad 12, a first positioning block 13, a second sealing ring 14, a third sealing ring 15, a second positioning block 16, and a second limiting rod 17.

[0031] Specifically, such as Figure 1 , Figure 2 and Figure 4As shown, by installing the rotating shaft sleeve body 1 along the connecting block 2 on the left side of the fixing ring 3, and simultaneously rotating the first limiting rod 4, the first limiting rod 4 connects the fixing ring 3 and the side plate of the sewing machine to fix the fixing ring 3 and the connecting block 2. At the same time, the rotating shaft body 10 is placed inside the rotating shaft sleeve body 1, and the connecting cover 11 is installed along the second positioning block 16 on the left side of the rotating shaft sleeve body 1. At this time, because the shape of the second positioning block 16 is "T" shaped, the connection structure between the second positioning block 16 and the rotating shaft sleeve body 1 is more stable. Then, the second limiting rod 17 is rotated. This allows the second limiting rod 17 to fix the connecting cover 11 and the rotating shaft body 10 inside the rotating shaft sleeve body 1. Because the oil-absorbing pad 12 is engaged with the first positioning block 13, the oil-absorbing pad 12 is fixed in the middle of the first positioning block 13. This allows the oil-absorbing pad 12 to absorb excess lubricating oil overflowing from the gap between the second sealing ring 14 and the rotating shaft body 10, and at the same time absorb excess lubricating oil overflowing from the gap between the third sealing ring 15 and the rotating shaft sleeve body 1. This prevents excess lubricating oil from overflowing to the outside of the device, affecting the overall aesthetics of the device, and reducing the cleaning and maintenance costs of the device.

[0032] Specifically, such as Figure 1 , Figure 3 and Figure 5 As shown, by connecting the oil filling pipe to the upper side of the oil filling assembly 9, the lubricating oil pushes the blocking block 903 and the first sealing ring 904 to move downwards along the support frame 901, squeezing the damper 902, allowing the lubricating oil to enter the device. Since the blocking block 903 is slidably positioned on the upper side of the support frame 901, and the blocking block 903 can cooperate with the sealing performance of the first sealing ring 904 to open and close its upper opening, after the oil filling operation is completed, the damper 902 pushes the blocking block 903 and the first sealing ring 904 back to their original position along the support frame 901. The upper opening of the rotating sleeve body 1 is sealed to prevent lubricating oil from overflowing into the device and improve the overall sealing performance of the device. At the same time, the positioning ring 5, together with the connecting cover 11, fixes the oil storage sleeve 6 inside the rotating sleeve body 1, so that the oil storage sleeve 6, together with the oil storage cavity 7, stores the lubricating oil entering the device. At this time, because the oil storage cavity 7 is set with multiple holes at equal intervals inside the oil storage sleeve 6, the lubricating oil slowly diffuses outward along the vent 8 inside the oil storage sleeve 6 and the oil storage cavity 7, improving the storage and use effect of the device for lubricating oil and reducing the consumption of lubricating oil.

[0033] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A sewing machine spindle bushing capable of absorbing excess lubricating oil, comprising a spindle bushing body (1) and a connecting cover (11) disposed on the left side of the spindle bushing body (1), and a spindle body (10) disposed on the inner side of the spindle bushing body (1): Its features are, Also includes: An oiling assembly (9) is installed on the upper side of the rotating shaft sleeve body (1). An oil-absorbing pad (12) is provided in the middle of the connecting cover (11), and a first positioning block (13) is provided on the outer side of the oil-absorbing pad (12). The second sealing ring (14) is engaged and fixed at the gap between the connecting cover (11) and the rotating shaft body (10), and a third sealing ring (15) is installed at the gap between the connecting cover (11) and the rotating shaft body (1). A second positioning block (16) is provided on the inner side of the connecting cover (11), and a second limiting rod (17) is connected to the right side of the connecting cover (11).

2. The sewing machine shaft bushing capable of absorbing excess lubricating oil according to claim 1, characterized in that: The oiling assembly (9) includes a support frame (901) mounted on the upper side of the rotating shaft sleeve body (1), and a damper (902) is provided in the middle of the support frame (901), and a blocking block (903) is connected to the upper side of the damper (902), and a first sealing ring (904) is provided in the middle of the blocking block (903).

3. The sewing machine shaft bushing capable of absorbing excess lubricating oil according to claim 2, characterized in that: The blocking block (903) is slidably disposed on the upper side of the support frame (901), and the blocking block (903) cooperates with the sealing performance of the first sealing ring (904) to open and close the opening on its upper side.

4. The sewing machine shaft bushing capable of absorbing excess lubricating oil according to claim 1, characterized in that: The oil-absorbing pad (12) and the first positioning block (13) are engaged to fix the oil-absorbing pad (12) in the middle of the first positioning block (13), and the first positioning block (13) is symmetrically arranged about the central axis of the oil-absorbing pad (12).

5. The sewing machine shaft bushing capable of absorbing excess lubricating oil according to claim 1, characterized in that: The second positioning block (16) has a "T" shaped structure and is symmetrically arranged about the central axis of the connecting cover (11).

6. The sewing machine shaft bushing capable of absorbing excess lubricating oil according to claim 5, characterized in that: The second limiting rod (17) is threadedly connected to both the rotating bushing body (1) and the connecting cover (11), and the second limiting rod (17) is set at an equal angle on the right side of the connecting cover (11).

7. The sewing machine shaft bushing capable of absorbing excess lubricating oil according to claim 1, characterized in that: The rotating sleeve body (1) is provided with a positioning ring (5) inside, and an oil storage sleeve (6) is provided on the left side of the positioning ring (5). The oil storage sleeve (6) has an oil storage cavity (7) inside, and an escaping port (8) is provided on the outside of the oil storage cavity (7).

8. The sewing machine spindle bushing capable of absorbing excess lubricating oil according to claim 7, characterized in that: The oil storage sleeve (6) is engaged with the positioning ring (5) and the connecting cover (11), and the oil storage cavity (7) is provided with multiple holes at equal intervals inside the oil storage sleeve (6).

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