Accessory for quickly replacing presser foot

Abstract

The utility model discloses a quick presser foot replacing accessory, and aims to provide a presser foot replacing accessory which is convenient to operate and labor-saving, the technical scheme is that the quick presser foot replacing accessory comprises an accessory body, the accessory body comprises a fixing structure, an accessory shell and an assembling rod, the fixing structure is used for fixing the accessory body on a sewing machine pressing rod, and the accessory shell is used for fixing the accessory body on the sewing machine pressing rod. A sliding part and a spring are arranged in the accessory shell, a rotating shaft of the assembly rod is connected to the accessory shell and abuts against the sliding part, and the assembly rod is configured in the mode that when the assembly rod is pushed inwards, the assembly rod can push the sliding part to move outwards and provide an installation position for the sewing machine presser foot. The utility model is applicable to the field of sewing machine equipment.

Description

Technical Field

[0001] This utility model relates to a quick-change presser foot accessory, and more specifically, it relates to a presser foot replacement accessory that is easy to operate and makes it convenient to replace the presser foot. Background Technology

[0002] As a component of a sewing machine, the presser foot is used to press down the fabric placed on the sewing machine table. The presser foot also requires corresponding accessories to be installed on the presser bar.

[0003] Currently, sewing machine presser foot accessories on the market use detachable spring accessories. These accessories need to be manually removed when the presser foot needs to be replaced, which is inconvenient and has poor fixing ability for the sewing machine presser foot. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a pressure foot replacement accessory that is easy to operate and makes it more convenient and labor-saving to replace the pressure foot.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick-change presser foot accessory, comprising an accessory body, the accessory body including a fixing structure, an accessory shell, and an assembly rod, the fixing structure for fixing the accessory body to the sewing machine presser bar, the accessory shell having a sliding element and a spring inside, the assembly rod being pivotally connected to the accessory shell and abutting against the sliding element, the assembly rod being configured such that: when the assembly rod is pushed inward, the assembly rod will push the sliding element to move outward and provide an installation position for the sewing machine presser foot.

[0006] By adopting the above technical solution, the accessory body of the utility model can enhance the connection stability between the accessory body and the sewing machine press bar by providing a fixing structure. The accessory shell cooperates with the fixing structure and the assembly rod to realize the function of replacing the presser foot without disassembly.

[0007] The present invention is further configured such that: the cross section of the fixing structure is L-shaped, the horizontal plate of the fixing structure is provided with a hole for the sewing machine pressure bar to pass through, and the vertical plate of the fixing structure is provided with a limiting hole.

[0008] By adopting the above technical solution, the fixed structure is L-shaped, and its horizontal plate is provided with holes for the sewing machine pressure bar to pass through, and its vertical plate is provided with limiting holes, so that the fixed structure can be fixed to the sewing machine pressure bar at one end and to the core part of the accessory at the other end. The holes and limiting holes are configured to cooperate with other parts.

[0009] The present invention is further configured such that: a limiting groove is provided on the side of the accessory housing, the limiting groove being used to limit the rotation angle of the assembly rod.

[0010] By adopting the above technical solution, the limiting groove provided on the side of the accessory housing can constrain the rotation angle of the assembly rod, thereby improving the locking effect of the accessory on the sewing machine presser foot.

[0011] The present invention is further configured such that: one end of the spring abuts against the sliding member, and the other end abuts against one end of the accessory housing near the fixed structure; the spring is configured such that: when the assembly rod is pushed, the spring is compressed, the spring's rebound force acts on the sliding member, and the screw rod at one end of the sliding member fixes the sewing machine presser foot to the sewing machine presser rod.

[0012] By adopting the above technical solution, and by setting the spring position inside the accessory housing, with one end of the spring abutting against the accessory housing and the other end abutting against the sliding part, this utility model can improve the installation reliability of the presser foot through the spring's rebound force.

[0013] The present invention is further configured such that one end of the assembly rod is provided with a circular groove.

[0014] By adopting the above technical solution, a circular groove is provided at one end of the assembly rod, which can reduce the pressure on the hand when pushing the assembly rod, making it more user-friendly.

[0015] The present invention is further configured such that the assembly rod and the outer shell of the accessory are made of either metal or plastic.

[0016] By adopting the above technical solution, the metal or plastic material used for the assembly rod and accessory housing is a relatively high-quality traditional material with low production cost and long service life. Attached Figure Description

[0017] Figure 1 This is a perspective view of an embodiment of the quick-change pressure foot accessory of this utility model;

[0018] Figure 2 This is an exploded view of an embodiment of the quick-change pressure foot accessory of this utility model;

[0019] The attached diagram is labeled as follows: 1. Fixed structure; 2. Accessory housing; 3. Assembly rod; 4. Sliding component; 5. Spring; 6. Hole; 7. Limiting hole; 8. Limiting groove; 9. Circular groove. Detailed Implementation

[0020] Reference Figures 1 to 2 The embodiments of the quick-change pressure foot accessory of this utility model are further described below.

[0021] For ease of explanation, spatial relative terms such as “up,” “down,” “left,” and “right” are used in the embodiments to describe the relationship of one element or feature shown in the figures relative to another element or feature. It should be understood that, in addition to the orientations shown in the figures, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figures is inverted, an element described as being “down” of other elements or features would be positioned “up” of those other elements or features. Therefore, the exemplary term “down” can encompass both up and down orientations. The device may be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0022] Moreover, relational terms such as “first” and “second” are used merely to distinguish one component from another that has the same name, without necessarily requiring or implying any such actual relationship or order between the components.

[0023] A quick-change presser foot accessory includes an accessory body, which comprises a fixing structure 1, an accessory housing 2, and an assembly rod 3. The fixing structure 1 is used to fix the accessory body to the presser foot of a sewing machine. The accessory housing 2 has a sliding element 4 and a spring 5 inside. The assembly rod 3 is pivotally connected to the accessory housing 2 and abuts against the sliding element 4. The assembly rod 3 is configured such that when the assembly rod 3 is pushed inward, it pushes the sliding element 4 outward to provide an installation position for the presser foot. One end of the spring 5 abuts against the sliding element 4, and the other end abuts against the end of the accessory housing 2 near the fixing structure 1. The spring 5 is configured such that when the assembly rod 3 is pushed, the spring 5 is compressed, and the spring 5's rebound force... Used on the sliding member 4, the screw rod at one end of the sliding member 4 fixes the sewing machine presser foot to the sewing machine press bar. The above technical solution makes the connection between the accessory body and the sewing machine press bar stronger by providing a fixing structure 1. The accessory shell 2 cooperates with the fixing structure 1 and the assembly rod 3 to realize the function of replacing the presser foot without disassembly. Secondly, by setting the spring 5 inside the accessory shell 2, with one end of the spring 5 abutting against the accessory shell 2 and the other end abutting against the sliding member 4, the utility model can improve the installation reliability of the presser foot through the rebound force of the spring 5. In addition, the accessory shell 2 has a limiting groove 8 on its side, so that the sliding member 4 can move left and right only under the constraint of the assembly rod 3, which meets the basic operating effect of the component.

[0024] Furthermore, the cross-section of the fixing structure 1 is L-shaped. The horizontal plate of the fixing structure 1 is provided with a hole 6 for the sewing machine presser bar to pass through, and the vertical plate of the fixing structure 1 is provided with a limiting hole 7. By adopting the above technical solution, the fixing structure 1 is L-shaped, and its horizontal plate is provided with a hole 6 for the sewing machine presser bar to pass through, and its vertical plate is provided with a limiting hole 7. This allows the fixing structure 1 to be fixed to the sewing machine presser bar at one end and to the core part of the accessory at the other end. Compared with conventional quick-change presser foot accessories, it is less likely to loosen when it is used with the sewing machine presser foot, and the connection is tighter. Depending on actual needs, the connection strength can also be strengthened by other physical means, such as by plug-in connection or by setting a magnetic structure.

[0025] As a further optimization design, one end of the assembly rod 3 is provided with a circular groove 9, and its material is either metal or plastic. When using the assembly rod 3 to install the presser foot, the assembly rod 3 needs to be pushed towards the side of the sewing machine presser bar by hand. By utilizing the lever principle, the installation position can be easily expanded, and then the required presser foot can be installed in the corresponding position. The circular groove 9 at one end of the assembly rod 3 can reduce the pressure on the hand when pushing the assembly rod 3, making it more comfortable and effortless to use. The metal or plastic used for the assembly rod 3 and the accessory housing 2 are relatively high-quality traditional materials with low production costs and long service life. If there are special requirements for the performance of the materials, a more suitable one can be flexibly selected, without being limited to the materials mentioned above.

[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any ordinary changes and substitutions made by those skilled in the art within the scope of the technical solution of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick-change presser foot accessory, comprising an accessory body, characterized in that, The accessory body includes a fixing structure (1), an accessory housing (2), and an assembly rod (3). The fixing structure (1) is used to fix the accessory body to the sewing machine presser foot. The accessory housing (2) is provided with a sliding member (4) and a spring (5) inside. The assembly rod (3) is pivotally connected to the accessory housing (2) and abuts against the sliding member (4). The assembly rod (3) is configured such that when the assembly rod (3) is pushed inward, the assembly rod (3) will push the sliding member (4) to move outward and provide an installation position for the sewing machine presser foot.

2. The quick-change pressure foot accessory according to claim 1, characterized in that, The fixed structure (1) has an L-shaped cross section. The horizontal plate of the fixed structure (1) is provided with a hole (6) for the sewing machine pressure bar to pass through, and the vertical plate of the fixed structure (1) is provided with a limiting hole (7).

3. The quick-change pressure foot accessory according to claim 1, characterized in that, The accessory housing (2) has a limiting groove (8) on its side, which is used to limit the rotation angle of the assembly rod (3).

4. A quick-change pressure foot accessory according to claim 1, characterized in that, One end of the spring (5) abuts against the slider (4), and the other end abuts against the end of the accessory housing (2) near the fixed structure (1). The spring (5) is configured such that when the assembly rod (3) is pushed, the spring (5) is compressed, and the rebound force of the spring (5) acts on the slider (4). The screw rod at one end of the slider (4) fixes the sewing machine presser foot to the sewing machine presser bar.

5. A quick-change pressure foot accessory according to claim 1, characterized in that, One end of the assembly rod (3) is provided with a circular groove (9).

6. A quick-change pressure foot accessory according to claim 1, characterized in that, The assembly rod (3) and accessory housing (2) are made of either metal or plastic.

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