CN218263034U

CN218263034U - Presser foot of sewing machine

Info

Publication number: CN218263034U
Application number: CN202222347317.5U
Authority: CN
Inventors: 包华桥
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-09-01
Filing date: 2022-09-01
Publication date: 2023-01-10
Anticipated expiration: 2032-09-01

Abstract

The utility model belongs to the technical field of sewing machine equipment, in particular to a presser foot of a sewing machine; the connecting device comprises a connecting main body, a foot pressing plate and an elastic clamping ring; a fixing bulge is arranged on the foot pressing plate, and a fixing hole is formed in the fixing bulge; the connecting main body is provided with a clamping groove matched with the fixing protrusion, the foot pressing plate is inserted on the connecting main body through the matching of the fixing protrusion and the clamping groove, the connecting main body is provided with a through hole, and two sides of the connecting main body are provided with limiting grooves; the both ends of elastic clasp all are provided with joint portion, and two limits groove is established respectively to elastic clasp's both sides card, and joint portion inserts and perforates and extend to in the fixed orifices. The presser foot plate in the sewing machine presser foot is fixed on the connecting body through the clamping part, the elastic snap ring is pulled, the elastic snap ring is separated from the limiting groove, the clamping part can be separated from the fixing hole, the connecting body is separated from the presser foot plate, the presser foot plate can be easily detached from the connecting body and replaced, and the replacement of the presser foot plate is more convenient.

Description

Presser foot of sewing machine

Technical Field

The utility model belongs to the technical field of sewing machine equipment, concretely relates to sewing machine presser foot.

Background

The sewing machine presser foot is an essential part in a feeding mechanism of a sewing machine, and various types of sewing machine presser feet play an important role in the production process, such as the sewing machine presser foot special for stitching open threads and hidden zippers, the sewing machine presser foot for creasing and the like, and the selection of different sewing machine presser feet in different sewing operations is very important.

At present, a presser foot plate in a presser foot component of a sewing machine is fixedly connected with a connecting body through a bolt; most of the foot pressing plates are made of plastic materials, and when the foot pressing plates are worn to a certain degree, the sewing operation can be continued only after the foot pressing plates need to be replaced;

however, the replacement of the footpad is not performed with the aid of another tool (screwdriver), which makes the replacement of the footpad cumbersome and requires a lot of time. Therefore, the invention provides a presser foot assembly with a presser foot plate convenient to replace, which is a technical problem to be solved urgently by a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems existing in the prior art, the utility model provides a presser foot of a sewing machine, which solves the technical problems that the replacement of the presser foot plate existing in the prior art is troublesome and needs to consume more time.

The utility model discloses a following technical scheme specifically realizes:

a presser foot of a sewing machine comprises a connecting main body, a presser foot plate and an elastic snap ring;

the upper end face of the foot pressing plate is provided with a fixing protrusion, the fixing protrusion is provided with a fixing hole, and two ends of the fixing hole are respectively located on two sides of the fixing protrusion;

the lower end face of the connecting main body is provided with a clamping groove matched with the fixing protrusion, the foot pressing plate is inserted into the lower end face of the connecting main body through the matching of the fixing protrusion and the clamping groove, a through hole is formed in the position, corresponding to the fixing hole, of the connecting main body, limiting grooves are formed in two sides of the connecting main body, and one end edge of each limiting groove extends to the corresponding through hole;

the elastic clamping ring is of a U-shaped structure, clamping parts are arranged at two ends of the elastic clamping ring, two edges of the elastic clamping ring are respectively clamped in the limiting grooves at two sides of the connecting main body, and the clamping parts are inserted into the through holes and extend into the fixing holes; when the elastic clamping ring rotates around the axis of the clamping portion, the two sides of the elastic clamping ring are separated from the limiting groove and move to the side wall of the connecting body, and the clamping portion is separated from the fixing hole.

In order to better realize the utility model discloses, do further optimization in above-mentioned structure, the spacing groove is close to the lateral wall of one side of presser foot board is for breaking away from the wall, break away from the wall with contained angle between the tank bottom of spacing groove is greater than 90.

In order to better realize the utility model discloses, do further optimization in above-mentioned structure, the length of joint portion with the degree of depth of spacing groove equals.

In order to realize better the utility model discloses, do further optimization in above-mentioned structure, be provided with on the connecting body and be used for the card to establish the portion is established to elasticity snap ring's card, elasticity snap ring keeps away from the one end card of joint portion is established in the card is established portion.

In order to better realize the utility model discloses, do further optimization in above-mentioned structure, the height that the portion place was established to the card is greater than the height at perforation place, the spacing groove is kept away from fenestrate one end to the position that the portion place was established to the card extends.

In order to better realize the utility model discloses, do further optimization in above-mentioned structure, the draw-in groove is for leading to the groove, the one end of draw-in groove is provided with spacing arch, fixed protrusion corresponds spacing bellied position is provided with supports the portion of establishing, fixed protrusion keeps away from the one end of supporting the portion of establishing is provided with the elastic component, the both ends of elastic component are supported respectively and are established press the sole and connect the main part is last, the fixed orifices is located support the portion of establishing with between the elastic component.

In order to realize the utility model discloses, do further optimization in above-mentioned structure, fixed bellied top surface is provided with the counter bore, the elastic component is coil spring, the diameter of counter bore with the diameter phase-match of elastic component, the one end setting of elastic component is in the counter bore.

In order to better realize the utility model discloses, do further optimization in above-mentioned structure, be provided with the mounting groove on connecting body's the lateral wall, the mounting groove to connecting body's top extends, just connecting body corresponds the position of mounting groove is provided with the mounting hole.

In order to better realize the utility model discloses, make further optimization in above-mentioned structure, the snap ring with joint portion is integrated into one piece component.

To sum up, the utility model discloses following technological effect has:

this presser foot in sewing machine presser foot passes through joint portion on the snap ring to be fixed on the clutch body, pulls the snap ring, makes the snap ring deviate from by the spacing groove to on removing to clutch body's lateral wall, joint portion just can be deviate from by the fixed orifices, makes clutch body and presser foot separation, just can relax will press the sole to pull down and change by clutch body on, so that the more convenience of change of presser foot.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of a presser foot of a sewing machine according to the present invention;

FIG. 2 is a schematic view of another view angle of the presser foot of the sewing machine according to the present invention;

FIG. 3 is a front view of a presser foot of the sewing machine of the present invention;

fig. 4 is a rear view of a presser foot of a sewing machine of the present invention;

FIG. 5 is an exploded view of a presser foot of the sewing machine of the present invention;

fig. 6 is a schematic structural view of a connecting body in a presser foot of a sewing machine according to the present invention.

Reference numerals:

1. a connecting body; 11. a card slot; 12. perforating; 13. a limiting groove; 131. a detachment wall; 14. a clamping part; 15. a limiting bulge; 16. mounting grooves; 161. mounting holes;

2. a foot pressing plate; 21. a fixed protrusion; 22. a fixing hole; 23. a support part; 24. a counter bore; 25. an elastic member;

3. an elastic snap ring; 31. a clamping part.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be noted that "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like are used in an orientation or positional relationship indicated based on the orientation or positional relationship shown in the drawings for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is also to be understood that the terms "mounted", "connected" and "connected", unless expressly specified or limited otherwise, are intended to be interpreted broadly, as meaning either a fixed connection or a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as the case may be, by those of ordinary skill in the art.

Example (b):

as shown in fig. 1 to 6:

a presser foot of a sewing machine comprises a connecting main body 1, a presser foot plate 2 and an elastic snap ring 3; wherein the content of the first and second substances,

the upper end surface of the foot pressing plate 2 is provided with a fixing bulge 21, the fixing bulge 21 is provided with a fixing hole 22, and two ends of the fixing hole 22 are respectively positioned at two sides of the fixing bulge 21;

the lower end face of the connecting main body 1 is provided with a clamping groove 11 matched with the fixing protrusion 21, the foot pressing plate 2 is inserted into the lower end face of the connecting main body 1 through the matching of the fixing protrusion 21 and the clamping groove 11, a through hole 12 is formed in the connecting main body 1 corresponding to the position of the fixing hole 22, limiting grooves 13 are formed in two sides of the connecting main body 1, and one end of each limiting groove 13 extends to the through hole 12;

the elastic clamping ring 3 is of a U-shaped structure, clamping portions 31 are arranged at two ends of the elastic clamping ring 3, two sides of the elastic clamping ring 3 are clamped in the limiting grooves 13 on two sides of the connecting body 1 respectively, and the clamping portions 31 are inserted into the through holes 12 and extend into the fixing holes 22.

When the worn foot pressing plate 2 needs to be replaced, a worker can pull the elastic clamping ring 3 to enable two sides of the elastic clamping ring 3 to be separated from the limiting groove 13 and move to the side wall of the connecting main body 1, the clamping portions 31 at two ends of the elastic clamping ring 3 can be separated from the fixing holes 22, and the worn foot pressing plate 2 can be separated from the connecting main body 1;

at this time, the worker can take the worn foot pressing plate 2 off from the connecting body 1, then insert the new foot pressing plate 2 on the lower end surface of the connecting body 1, and pull the elastic snap ring 3 to allow two sides of the elastic snap ring 3 to be respectively clamped into the limiting grooves 13 on two sides of the connecting body 1, so that the clamping portion 31 on the elastic snap ring 3 is clamped into the fixing hole 22 on the new foot pressing plate 2 to complete the replacement of the foot pressing plate 2.

Foretell presser foot 2's change mode is comparatively simple, and need not with the help of other instruments to avoid consuming more time when changing presser foot 2, thereby effectual improvement work efficiency.

Preferably, the elastic snap ring 3 and the clamping portion 31 are integrally formed, so that the structure of the elastic snap ring 3 is more stable.

Preferably, the side wall of the limiting groove 13 close to the foot pressing plate 2 is a separating wall 131; wherein the content of the first and second substances,

the included angle between the separation wall 131 and the bottom of the limiting groove 13 is larger than 90 degrees;

when pulling the elastic snap ring 3, the worker can pull the elastic snap ring 3 along the direction of the separation wall 131, so that the two sides of the elastic snap ring 3 can slide to the side wall of the connecting body 1 along the separation wall 131 easily, and the foot pressing plate 2 can be replaced more conveniently.

Preferably, the angle between the release wall 131 and the bottom of the stopper groove 13 is 135 °.

Optimally, the length of the clamping part 31 is equal to the depth of the limiting groove 13; when the two sides of the elastic clamp ring 3 move to the side wall of the connecting body 1, the clamping portion 31 is just separated from the through hole 12 on the foot pressing plate 2, so that the foot pressing plate 2 is more convenient to replace.

Preferably, the connecting body 1 is provided with a clamping part 14 for clamping the elastic snap ring 3; in the working state, the end of the elastic snap ring 3 far from the clamping portion 31 is always clamped in the clamping portion 14, so as to avoid the situation that the elastic snap ring 3 extends outwards to influence the work of the sewing machine.

Preferably, the height of the locking portion 14 is greater than the height of the through hole 12, and one end of the limiting groove 13 away from the through hole 12 extends to the position of the locking portion 14.

Preferably, the clamping groove 11 is a through groove; wherein the content of the first and second substances,

one end of the clamping groove 11 is provided with a limiting bulge 15, a position of the fixing bulge 21 corresponding to the limiting bulge 15 is provided with an abutting part 23, one end of the fixing bulge 21 far away from the abutting part 23 is provided with an elastic part 25, two ends of the elastic part 25 are respectively abutted on the foot pressing plate 2 and the connecting main body 1, and the fixing hole 22 is positioned between the abutting part 23 and the elastic part 25;

elastic component 25 will press sole 2 to keep away from the one end of sewing machine feed direction and promote downwards, and the one end that presses sole 2 to be close to sewing machine feed direction then upwards perk to make spacing arch 15 with support and establish 23 butts, at this moment, press the plane at sole 2 place and have certain contained angle with the horizontal plane, so that this sewing machine presser foot is at the during operation, the feeding convenience more of cloth.

Preferably, the top surface of the fixing protrusion 21 is provided with a counter bore 24, the elastic member 25 is a coil spring, the diameter of the counter bore 24 is matched with the diameter of the elastic member 25, and one end of the elastic member 25 is arranged in the counter bore 24, so as to avoid the elastic member 25 falling out from between the connecting body 1 and the presser foot plate 2, and further stabilize the structure of the sewing machine presser foot.

Preferably, a clamping hole is formed in the clamping groove 11, and one end of the elastic member 25, which is far away from the foot pressing plate 2, is clamped in the clamping hole, so as to prevent the elastic member 25 from falling out from between the connecting body 1 and the foot pressing plate 2.

Preferably, the side wall of the connecting body 1 is provided with an installation groove 16, the installation groove 16 extends to the top of the connecting body 1, and an installation hole 161 is formed at a position of the connecting body 1 corresponding to the installation groove 16;

the presser foot of the sewing machine is clamped on a presser foot rod of the sewing machine through the mounting groove 16 on the connecting main body 1 and is fixedly connected with the presser foot rod of the sewing machine by using a connecting piece, so that the mounting of the presser foot of the sewing machine is more convenient.

It should be noted that the above-mentioned connecting member refers to a screw or a bolt.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A presser foot of a sewing machine is characterized in that: comprises a connecting main body (1), a foot pressing plate (2) and an elastic snap ring (3);

the upper end surface of the foot pressing plate (2) is provided with a fixing bulge (21), the fixing bulge (21) is provided with a fixing hole (22), and two ends of the fixing hole (22) are respectively positioned at two sides of the fixing bulge (21);

the lower end face of the connecting main body (1) is provided with a clamping groove (11) matched with the fixing protrusion (21), the foot pressing plate (2) is inserted into the lower end face of the connecting main body (1) through the matching of the fixing protrusion (21) and the clamping groove (11), a through hole (12) is formed in the position, corresponding to the fixing hole (22), of the connecting main body (1), limiting grooves (13) are formed in two sides of the connecting main body (1), and one end of each limiting groove (13) extends to the through hole (12);

the elastic clamping ring (3) is of a U-shaped structure, clamping parts (31) are arranged at two ends of the elastic clamping ring (3), two sides of the elastic clamping ring (3) are respectively clamped in the limiting grooves (13) at two sides of the connecting main body (1), and the clamping parts (31) are inserted into the through holes (12) and extend into the fixing holes (22); when elastic clamping ring (3) round the axis of joint portion (31) rotates, the both sides of elastic clamping ring (3) by spacing groove (13) deviate from and move to when connecting on the lateral wall of main part (1), joint portion (31) by fixed orifices (22) deviate from.

2. The sewing machine presser foot of claim 1, wherein: the side wall of one side of the limiting groove (13) close to the foot pressing plate (2) is a separation wall (131), and an included angle between the separation wall (131) and the groove bottom of the limiting groove (13) is larger than 90 degrees.

3. The sewing machine presser foot of claim 2, wherein: the length of the clamping portion (31) is equal to the depth of the limiting groove (13).

4. The sewing machine presser foot of claim 3, wherein: connecting body (1) is last to be provided with and to be used for the card to establish card portion (14) are established to the card of elasticity snap ring (3), elasticity snap ring (3) are kept away from the one end card of joint portion (31) is established in the card portion (14) are established.

5. The sewing machine presser foot of claim 4, wherein: the height of the clamping part (14) is greater than that of the through hole (12), and one end, far away from the through hole (12), of the limiting groove (13) extends to the position of the clamping part (14).

6. The sewing machine presser foot of claim 1, wherein: draw-in groove (11) are logical groove, the one end of draw-in groove (11) is provided with spacing arch (15), fixed arch (21) correspond the position of spacing arch (15) is provided with supports and establishes portion (23), fixed arch (21) are kept away from support the one end of establishing portion (23) and be provided with elastic component (25), the both ends of elastic component (25) are supported respectively and are established press sole (2) and on connecting body (1), fixed orifices (22) are located support establish portion (23) with between elastic component (25).

7. The sewing machine presser foot of claim 6, wherein: the top surface of the fixed bulge (21) is provided with a counter bore (24), the elastic piece (25) is a spiral spring, the diameter of the counter bore (24) is matched with that of the elastic piece (25), and one end of the elastic piece (25) is arranged in the counter bore (24).

8. The sewing machine presser foot of claim 1, wherein: be provided with mounting groove (16) on connecting body (1)'s the lateral wall, mounting groove (16) to connecting body (1)'s top extends, just connecting body (1) corresponds the position of mounting groove (16) is provided with mounting hole (161).

9. The sewing machine presser foot of claim 1, wherein: the elastic snap ring (3) and the clamping part (31) are integrally formed components.