Presser foot with needle head protection structure for sewing equipment

Abstract

The utility model relates to the technical field of sewing equipment, in particular to a sewing equipment presser foot with a needle head protection structure. Comprising a presser foot, the presser foot is connected with a base, the base is rotatably connected with a connecting block, the connecting block is slidably connected with a moving column, the moving column is slidably connected with a connecting seat, the connecting seat is rotatably connected with a rotating rod, the rotating rod is connected with a gear, the connecting seat is slidably connected with a moving plate, the moving plate is connected with a toothed plate, the toothed plate is meshed with the gear, and the connecting seat is connected with a limiting rod. The base is connected with two groups of fixing plates, the two groups of fixing plates are jointly connected with a fixing rod, the fixing rod is rotationally connected with a baffle, the baffle is connected with a magnet strip, the base is connected with a vertical plate, the vertical plate is connected with an iron sheet, and the magnet strip is matched with the iron sheet. By the adoption of the technical scheme, the hand and other body parts of a user can be prevented from accidentally making contact with the needle head, and the risk of acupuncture injury is greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of sewing equipment technology, specifically a presser foot for sewing equipment with a needle protection structure. Background Technology

[0002] Sewing equipment can sew fabrics such as cotton, linen, silk, wool, and synthetic fibers, as well as products made of leather, plastic, and paper. The stitches produced are neat, beautiful, flat, and strong. Sewing speed is fast and it is easy to use. An indispensable component is the presser foot, which applies pressure to the fabric surface, causing the parts to be sewn to move in a specified direction. Simultaneously, the regular movement of the sewing needle completes the sewing process.

[0003] A search of Chinese utility model patent (publication number CN220099357U) reveals a presser foot for a sewing machine, comprising a connecting seat, a rotating rod, an adjusting groove, a moving column, a baffle, a connecting block, a sewing machine presser foot, a toothed plate, a moving plate, a return spring, a square limiting rod, gears, and an adjusting lever. This technical solution prevents the sewing machine presser foot from excessively squeezing some fabrics, thus preventing fabric damage, improving fabric protection, and reducing the occurrence of fabric breakage.

[0004] However, through exploration, the inventors have discovered that this technical solution still has at least the following defects:

[0005] Existing presser feet cannot protect the needle tip. Users may suffer serious puncture wounds due to factors such as lack of operation skills, lack of concentration, or confined workspace, causing their fingers to get close to the needle tip, resulting in extended working hours. Utility Model Content

[0006] The present invention aims to provide a presser foot for sewing equipment with a needle protection structure to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A presser foot for sewing equipment with a needle protection structure includes a presser foot, a base connected to the presser foot, a connecting block rotatably connected to the base, a movable column slidably connected to the connecting block, a connecting seat slidably connected to the movable column, a rotating rod rotatably connected to the connecting seat, a gear connected to the rotating rod, a movable plate slidably connected to the connecting seat, a toothed plate connected to the movable plate, the toothed plate meshing with the gear, a limit rod connected to the connecting seat, a sliding connection between the movable plate and the limit rod, a mounting base connected to the connecting seat, and a fixing plate connected to the base. The fixing plate has two sets, both sets of fixing plates being connected to a fixing rod, a baffle rotatably connected to the fixing rod, a magnetic strip connected to the baffle, a vertical plate connected to the base, and an iron sheet connected to the vertical plate, the magnetic strip and the iron sheet cooperating with each other.

[0009] The movable column is connected to a lifting device, which is used to adjust the height of the pressure foot.

[0010] Preferably, the lifting device includes an adjusting rod, which is connected to a moving plate, and the moving column has an adjusting groove, with the adjusting rod and the adjusting groove cooperating with each other.

[0011] Preferably, the rotating rod is connected to a limiting plate, the limiting plate is slidably connected to a bolt, the connecting seat has a threaded hole, and the bolt is threadedly connected to the threaded hole.

[0012] Preferably, the movable column is connected to a spring, the spring is connected to a connecting block, and the movable column is connected to a horizontal plate.

[0013] Preferably, the presser foot is connected to a support wheel.

[0014] The beneficial effects of this technical solution compared to existing technologies are as follows:

[0015] (1) This solution incorporates a transparent protective panel that does not obstruct the user's view, allowing for smoother operation. Users no longer need to frequently adjust their gaze or hand movements to avoid the needle, thus improving work efficiency. It also does not affect the sewing equipment. The panel is secured with magnetic strips and metal plates to prevent swaying during garment sewing. During use, it largely prevents accidental contact between the user's hands or other body parts and the needle, significantly reducing the risk of needlestick injuries. This allows users to focus more on their work without constant anxiety, reducing injuries caused by negligence. This not only helps protect the health of workers but also reduces downtime and medical expenses due to wound infections.

[0016] (2) By setting up a lifting device, the height of the presser foot can be adjusted, which makes it easier for users to operate and is more suitable for various fabrics, improving the versatility and practicality of the equipment. At the same time, it reduces the complexity of adjusting the height of the sewing equipment and reduces the adjustment steps. Users can quickly adjust the height of the presser foot without replacing the presser foot, which greatly reduces the adjustment time and improves work efficiency.

[0017] (3) By setting limit plates, bolts and threaded holes, the adjusting rod is limited to complete the height adjustment of the presser foot, making the equipment more stable and avoiding problems such as uneven stitching caused by changes in presser foot height, thus extending the service life of the equipment.

[0018] (4) By incorporating springs and a crossbar, the presser foot is cushioned to prevent excessive pressure on the fabric, thus protecting its integrity and quality. Furthermore, the springs automatically adjust the presser foot pressure for fabrics of varying thicknesses. When sewing thinner fabrics, the springs compress more, reducing presser foot pressure; conversely, when sewing thicker fabrics, the springs compress less, increasing presser foot pressure. This allows the sewing equipment to adapt to various fabric thicknesses without frequent presser foot pressure adjustments, improving work efficiency.

[0019] (5) By setting support wheels, the sliding friction between the presser foot and the fabric is changed to rolling friction, preventing the fabric from slipping and maintaining stable fabric movement during sewing, resulting in more consistent stitch lengths for each stitch. Whether sewing straight lines or curves, this ensures uniform stitch length and improves the overall quality of the sewn products. Attached Figure Description

[0020] Figure 1 This is a front sectional view of the present invention;

[0021] Figure 2 Partial rear sectional view of the connector provided by this utility model;

[0022] Figure 3 This is a rear view of the present invention;

[0023] Figure 4 This is a top view of the cross-sectional section of the present invention;

[0024] Reference numerals in the attached drawings: 1. Mounting base; 2. Connecting base; 3. Moving column; 4. Moving plate; 5. Adjusting lever; 6. Adjusting groove; 7. Horizontal plate; 8. Spring; 9. Connecting block; 10. Baffle; 11. Base; 12. Support wheel; 13. Pressing foot; 14. Limiting rod; 15. Tooth plate; 16. Gear; 17. Rotating rod; 18. Bolt; 19. Limiting plate; 20. Fixing plate; 21. Fixing rod; 22. Threaded hole; 23. Vertical plate; 24. Iron sheet; 25. Magnet strip. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:

[0026] As shown in Figures 1-4, a presser foot for sewing equipment with a needle protection structure includes a presser foot 13. A base 11 is connected to the top of the presser foot 13. A connecting block 9 is rotatably connected to the base 11. A movable column 3 is slidably connected to the inner wall of the connecting block 9. A connecting seat 2 is slidably connected to the outer wall of the movable column 3. A rotating rod 17 is rotatably connected to the connecting seat 2. A gear 16 is connected to one end of the rotating rod 17 extending into the interior of the connecting seat 2. Two movable plates 4 are slidably connected to the inner wall of the connecting seat 2. Toothed plates 15 are connected to the ends of the two movable plates 4 near the gear 16, and the opposite sides of the two toothed plates 15 mesh with the gear 16. Two square limiting rods 14 are connected to the connecting seat 2. The two movable plates 4 are slidably connected to the surfaces of the two limiting rods 14. A mounting base 1 is connected to the top of the connecting seat 2, and a fixing device is connected to one side of the base 11. The plate 20 has two sets of fixing plates 20, and the two sets of fixing plates 20 are connected to a fixing rod 21. A baffle 10 is rotatably connected to the outer wall of the fixing rod 21. The baffle 10 is an arc-shaped transparent plate. The arc-shaped baffle 10 can block the needle and prevent the exposed needle from accidentally injuring people during sewing. In addition, the transparent baffle 10 will not obstruct people's vision and will not affect the use of the sewing equipment. A magnetic strip 25 is connected to the other end of the baffle 10 away from the fixing rod 21. A vertical plate 23 is connected to the other side of the base 11. An iron plate 24 is connected to the vertical plate 23. The magnetic strip 25 and the iron plate 24 cooperate with each other. The baffle 10 can be fixed by the cooperation of the magnetic strip 25 and the iron plate 24 to prevent the baffle 10 from swinging when sewing fabric. The moving column 3 is connected to a lifting device, which is used to adjust the height of the presser foot 13.

[0027] like Figure 1 As shown, the lifting device includes an adjusting lever 5, which is connected to the movable plate 4 and positioned on one side opposite to the two movable plates 4. The surface of the movable column 3 has multiple adjusting grooves 6 that match the adjusting lever 5, and the adjusting lever 5 cooperates with the adjusting grooves 6. Rotating the rotating rod 17 causes the gear 16 to rotate. Through the meshing of the gear 16 and the toothed plate 15, the toothed plate 15 and the two movable plates 4 move in opposite directions. Simultaneously, the movable plates 4 slide on the surfaces of the two limiting rods 14, causing the adjusting lever 5 to disengage from the adjusting groove 6. At this point, the movable column 3 slides according to the height requirement, sliding inside the connecting seat 2. After the height adjustment is complete, rotating the rotating rod 17 again resets the two movable plates 4, and simultaneously engages the adjusting lever 5 into the adjusting groove 6, completing the height adjustment of the movable column 3 and the pressure foot 13. This simplifies operation and reduces the complexity of adjusting the pressure foot 13 by simplifying the process.

[0028] like Figure 2-3 As shown, a limiting plate 19 is connected to the outer wall of the rotating rod 17, and a bolt 18 is slidably connected to the inner wall of the limiting plate 19. The connecting seat 2 has a threaded hole 22, and the bolt 18 is threadedly connected to the threaded hole 22. After the height adjustment is completed, the rotating rod 17 can be fixed by threading the bolt 18 to the threaded hole 22, thereby achieving the limiting and making the equipment more stable.

[0029] like Figure 1 As shown, a spring 8 is connected to the bottom of the movable column 3, and the other end of the spring 8 is connected to the connecting block 9. When the presser foot 13 moves down and contacts the worktable, the movable column 3 slides inside the connecting block 9, thereby squeezing the spring 8 and cushioning the presser foot 13. This prevents the presser foot 13 from excessively squeezing the fabric and causing damage, thus improving the protection of the fabric. A horizontal plate 7 is connected to the outer wall of the movable column 3 to block the connecting block 9 and prevent it from moving too far, improving the restriction effect on the connecting block 9. A support wheel 12 is connected to the bottom of the presser foot 13, which changes the sliding friction between the presser foot 13 and the fabric to rolling friction, preventing the fabric from slipping and maintaining the stable advancement of the fabric during the sewing process.

[0030] The specific implementation process is as follows:

[0031] When in use, rotate the baffle 10 to the front of the needle. At this time, the magnetic strip 25 on the baffle 10 will be attracted to the iron plate 24 to fix the baffle 10 and block the pillow.

[0032] When height adjustment is required, tighten bolt 18 to completely disengage it from connecting seat 2. Then, rotate rotating rod 17 to drive gear 16 to rotate, thereby disengaging adjusting rod 5 from the inside of adjusting groove 6. At this time, slide moving column 3 to slide inside connecting seat 2 according to height requirements. After height adjustment is completed, rotate rotating rod 17 again to reset the two moving plates 4 and simultaneously engage adjusting rod 5 into adjusting groove 6. Then, insert bolt 18 into limiting plate 19 and fix it to complete height adjustment.

[0033] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A presser foot for sewing equipment with a needle protection structure, characterized in that: Includes a presser foot (13), which is connected to a base (11). The base (11) is rotatably connected to a connecting block (9). The connecting block (9) is slidably connected to a moving column (3). The moving column (3) is slidably connected to a connecting seat (2). The connecting seat (2) is rotatably connected to a rotating rod (17). The rotating rod (17) is connected to a gear (16). The connecting seat (2) is slidably connected to a moving plate (4). The moving plate (4) is connected to a toothed plate (15). The toothed plate (15) meshes with the gear (16). The connecting seat (2) is connected to a limit rod. (14), the movable plate (4) is slidably connected to the limiting rod (14), the connecting seat (2) is connected to the mounting seat (1), the base (11) is connected to the fixing plate (20), the fixing plate (20) is provided with two sets, the two sets of fixing plates (20) are connected to the fixing rod (21), the fixing rod (21) is rotatably connected to the baffle (10), the baffle (10) is connected to the magnet strip (25), the base (11) is connected to the vertical plate (23), the vertical plate (23) is connected to the iron sheet (24), the magnet strip (25) and the iron sheet (24) cooperate with each other; The movable column (3) is connected to a lifting device, which is used to adjust the height of the pressure foot (13).

2. The presser foot for sewing equipment with a needle protection structure as described in claim 1, characterized in that: The lifting device includes an adjusting lever (5), which is connected to a moving plate (4). The moving column (3) has an adjusting groove (6), and the adjusting lever (5) and the adjusting groove (6) cooperate with each other.

3. The presser foot for sewing equipment with a needle protection structure as described in claim 1, characterized in that: The rotating rod (17) is connected to a limiting plate (19), the limiting plate (19) is slidably connected to a bolt (18), the connecting seat (2) has a threaded hole (22), and the bolt (18) is threadedly connected to the threaded hole (22).

4. The presser foot for sewing equipment with a needle protection structure as described in claim 1, characterized in that: The movable column (3) is connected to a spring (8), the spring (8) is connected to a connecting block (9), and the movable column (3) is connected to a horizontal plate (7).

5. A presser foot for sewing equipment with a needle protection structure as described in claim 1, characterized in that: The presser foot (13) is connected to a support wheel (12).

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