Adjusting foot pad of household sewing machine

Abstract

An adjusting foot pad of a household sewing machine comprises a metal plate bottom plate, a foot pad body is arranged below the metal plate bottom plate, a screw penetrating through the metal plate bottom plate is connected to the foot pad body, the screw is in threaded connection with the metal plate bottom plate, the head end of the screw is connected to the foot pad body, the tail end of the screw is connected with an anti-loosening shell, and the anti-loosening shell is located above the metal plate bottom plate. A flat gasket is arranged between the anti-loose shell and the metal plate bottom plate, the screw penetrates through the flat gasket to be connected with the anti-loose shell, an O-shaped ring is arranged between the flat gasket and the anti-loose shell, and the screw penetrates through the O-shaped ring to be connected with the anti-loose shell. The foot pad adjusting device has the advantages that the foot pad at the bottom of the sewing machine can be directly adjusted by hands without an auxiliary tool, so that the machine is stable and can be quickly adjusted, the machine can normally work, the adjustment is convenient and fast, the adjusting efficiency is high, the using effect is good, and popularization is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of sewing machines, in particular to an adjusting foot pad for a household sewing machine. Background Art

[0002] At present, in the sewing machine industry, the household automatic sewing machine is small in shape. Users generally place the sewing machine on the table for sewing operations. However, the table may be uneven, and it is necessary to manually adjust the foot pads at the bottom of the machine. The adjusting foot pads on the market often require auxiliary tools and are not convenient enough to adjust. Content of the Utility Model

[0003] The utility model aims to solve the above-mentioned disadvantages of the prior art and provides an adjusting foot pad for a household sewing machine, which can directly adjust the foot pads at the bottom of the sewing machine by hand without using auxiliary tools, making the machine stable and the adjustment convenient.

[0004] The technical solution adopted by the utility model to solve its technical problems: The adjusting foot pad for a household sewing machine includes a sheet metal bottom plate. A foot pad is arranged below the sheet metal bottom plate. A screw rod is connected to the foot pad and passes through the sheet metal bottom plate. The screw rod is in threaded connection with the sheet metal bottom plate. The head end of the screw rod is connected to the foot pad, and the tail end of the screw rod is connected with a lock prevention housing. The lock prevention housing is located above the sheet metal bottom plate. A flat gasket is arranged between the lock prevention housing and the sheet metal bottom plate. The screw rod passes through the flat gasket and is connected with the lock prevention housing. An O-ring is arranged between the flat gasket and the lock prevention housing. The screw rod passes through the O-ring and is connected with the lock prevention housing.

[0005] A group of buckles are arranged on the outer side of the lock prevention housing. The outer ends of the buckles pass through the sheet metal bottom plate and are limited at the bottom of the sheet metal bottom plate.

[0006] The buckles are arranged in a J-shaped state.

[0007] A convex bump is arranged on the sheet metal bottom plate. The flat gasket is located at the top of the convex bump.

[0008] Screw holes are arranged on the sheet metal bottom plate. The screw rod passes through the screw holes and is connected with the lock prevention housing.

[0009] The beneficial effect of the utility model is: The adjusting foot pad for a household sewing machine of the utility model has a reasonable structure, can directly adjust the foot pads at the bottom of the sewing machine by hand without using auxiliary tools, makes the machine stable, can be quickly adjusted, enables the machine to work normally, is convenient to adjust, has high adjustment efficiency, good use effect and is conducive to popularization. Brief Description of the Drawings

[0010] Figure 1 It is a schematic structural diagram of an embodiment of the utility model;

[0011] Figure 2 It is a schematic diagram of the use state of an embodiment of the utility model.

[0012] Description of the reference numerals: sheet metal base plate 1, convex hull 1-1, screw hole 1-2, foot pad 2, screw rod 3, anti-loosening housing 4, flat gasket 5, O-ring 6, buckle 7. Specific embodiments

[0013] The present utility model will be further described below in conjunction with the accompanying drawings:

[0014] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions of the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0015] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0016] In the present utility model, unless otherwise clearly specified and defined, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0017] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than that of the second feature.

[0018] Unless otherwise defined, the technical terms or scientific terms used herein shall have the ordinary meanings as understood by those of ordinary skill in the field to which the present utility model pertains. The terms "first", "second" and similar terms used in the description and claims of the patent application of the present utility model do not denote any order, quantity or importance, but are only used to distinguish different components. Similarly, the terms "a" or "an" and the like do not denote a limitation of quantity, but mean that there is at least one.

[0019] Referring to the attached drawings: This household sewing machine adjusting foot pad includes a sheet metal bottom plate 1, and the sheet metal bottom plate 1 is installed on the sewing machine. When the sewing machine is placed on an uneven tabletop, the height of the sheet metal bottom plate 1 can be adjusted to adjust the placement position of the sewing machine, so that the sewing machine can be placed stably and work normally. A foot pad 2 is arranged below the sheet metal bottom plate 1, and the foot pad 2 is installed at each corner of the sheet metal bottom plate 1 for adjusting the height of the corresponding area of the sheet metal bottom plate 1. The number of the foot pads 2 can be multiple, corresponding to each corner of the sheet metal bottom plate 1 respectively, to ensure the stable placement of the sewing machine. A screw rod 3 is connected to the foot pad 2 and passes through the sheet metal bottom plate 1. The screw rod 3 is threadedly connected to the sheet metal bottom plate 1. The head end of the screw rod 3 is connected to the foot pad 2, and the head end of the screw rod 3 is fixedly connected to the foot pad 2. In this way, rotating the foot pad 2 can simultaneously rotate the screw rod 3, so that the height of the foot pad 2 can be adjusted. It is not necessary to use auxiliary tools, and the foot pad 2 at the bottom of the sewing machine can be directly adjusted by hand, making the machine stable, with convenient adjustment and high adjustment efficiency. The tail end of the screw rod 3 is connected with an anti-loosening housing 4, and the anti-loosening housing 4 is located above the sheet metal bottom plate 1. The function of the anti-loosening housing 4 is to prevent the screw rod 3 from loosening when the screw rod 3 rotates, ensuring the normal progress of the adjustment process. A flat gasket 5 is arranged between the anti-loosening housing 4 and the sheet metal bottom plate 1. The screw rod 3 passes through the flat gasket 5 and is connected to the anti-loosening housing 4. An O-ring 6 is arranged between the flat gasket 5 and the anti-loosening housing 4. The O-ring 6 holds the screw rod 3 tightly. During the adjustment process of the screw rod 3, the O-ring 6 holds the screw rod 3 tightly to prevent loosening, ensuring the normal progress of the adjustment process. The screw rod 3 passes through the O-ring 6 and is connected to the anti-loosening housing 4. The flat gasket 5 is used to limit the O-ring 6 to ensure the normal operation of the O-ring 6.

[0020] A set of buckles 7 are arranged on the outer side of the anti-loosening housing 4, and the outer ends of the buckles 7 pass through the sheet metal bottom plate 1 and are limited at the bottom of the sheet metal bottom plate 1. With this setting, the anti-loosening housing 4 can be limited on the sheet metal bottom plate 1 by using the buckles 7, ensuring that the anti-loosening housing 4 does not loosen in the up and down position when the screw rod 3 is adjusted, and ensuring the effect of adjusting the height of the foot pad 2.

[0021] The buckle 7 is arranged in a J-shaped state. With this setting, the buckle 7 arranged in a J-shaped state has a firm limit and a good limiting effect. A buckle groove is opened on the sheet metal bottom plate 1, and the buckle 7 passes through the buckle groove for limitation. In this embodiment, the number of the buckles 7 is three, and the limitation is carried out in three directions to ensure stability and good stability performance.

[0022] The sheet metal base plate 1 is provided with a convex hull 1-1, and the flat gasket 5 is located at the top of the convex hull 1-1. With such a setting, the convex hull 1-1 can enable the flat gasket 5 and the O-ring 6 to work stably, and the stability performance is good.

[0023] The sheet metal base plate 1 is provided with screw holes 1-2, and the screw rod 3 passes through the screw holes 1-2 to be connected with the anti-loosening housing 4. With such a setting, the screw holes 1-2 are used to install the screw rod 3 and can enable the screw rod 3 to achieve the effect of moving up and down.

[0024] During operation, when the sewing machine is placed on an uneven tabletop, the height of the foot pad 2 needs to be adjusted. The operator directly turns the foot pad 2, and the rotation of the foot pad 2 drives the screw rod 3 to rotate. The rotation of the screw rod 3 drives the up and down height of the foot pad 2 to be adjusted to the corresponding height so that the sewing machine is placed stably. Under the action of the anti-loosening housing 4, the adjustment process proceeds stably.

[0025] The characteristics of the embodiment of the present utility model are as follows: The foot pad adjusting device for the household sewing machine of the present utility model has a reasonable structure, can directly adjust the foot pad at the bottom of the sewing machine by hand without using auxiliary tools, make the machine stable, can be quickly adjusted, enable the machine to work normally, is convenient to adjust, has high adjustment efficiency, good use effect, and is conducive to popularization.

[0026] Although the present utility model has been illustrated and described by referring to the preferred embodiments, those of ordinary skill in the art should understand that various changes in form and details can be made within the scope of the claims.

Claims

1. A household sewing machine adjustment foot pad, characterized in that: The invention comprises a sheet metal base plate (1), a foot pad (2) is arranged below the sheet metal base plate (1), a screw (3) passing through the sheet metal base plate (1) is connected to the foot pad (2), the screw (3) is threadedly connected to the sheet metal base plate (1), the head end of the screw (3) is connected to the foot pad (2), the tail end of the screw (3) is connected to an anti-loosening shell (4), the anti-loosening shell (4) is located above the sheet metal base plate (1), a flat gasket (5) is arranged between the anti-loosening shell (4) and the sheet metal base plate (1), the screw (3) passes through the flat gasket (5) and is connected to the anti-loosening shell (4), an O-ring (6) is arranged between the flat gasket (5) and the anti-loosening shell (4), and the screw (3) passes through the O-ring (6) and is connected to the anti-loosening shell (4).

2. The household sewing machine adjusting foot pad according to claim 1, characterized in that: A group of buckles (7) are arranged on the outer side of the anti-loosening housing (4), and the outer ends of the buckles (7) pass through the sheet metal bottom plate (1) and are limited at the bottom of the sheet metal bottom plate (1).

3. The household sewing machine adjusting foot pad according to claim 2, characterized in that: The buckle (7) is arranged in a J-shaped state.

4. The household sewing machine adjusting foot pad according to claim 1, characterized in that: The sheet metal bottom plate (1) is provided with a convex hump (1-1), and the flat gasket (5) is located on the top of the convex hump (1-1).

5. The household sewing machine adjusting foot pad according to claim 1, characterized in that: The sheet metal bottom plate (1) is provided with screw holes (1-2), and the screw rod (3) passes through the screw holes (1-2) and is connected to the anti-loosening housing (4).

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