CN218436160U - Locking assembly of thickness adjusting mechanism of sewing machine - Google Patents
Locking assembly of thickness adjusting mechanism of sewing machine Download PDFInfo
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- CN218436160U CN218436160U CN202222854473.0U CN202222854473U CN218436160U CN 218436160 U CN218436160 U CN 218436160U CN 202222854473 U CN202222854473 U CN 202222854473U CN 218436160 U CN218436160 U CN 218436160U
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Abstract
The utility model provides a sewing machine thickness adjustment mechanism's locking subassembly belongs to sewing machine technical field. It has solved the current poor problem of locking assembly locking effect. The thickness adjusting mechanism comprises an adjusting rod, a locking assembly comprises a locking knob, a locking plate with an arc-shaped hole and a locking block, the bottom of the adjusting rod is bent to form the locking portion, an embedding portion protruding out of the locking block is arranged on the locking block, the locking block and the locking portion are located on two sides of the locking plate, the embedding portion is arranged in the arc-shaped hole in an embedded mode, and the locking knob penetrates through the locking portion and the arc-shaped hole to be fixedly connected with the locking block so that the adjusting rod is fixedly connected with the locking plate. The locking assembly has the advantage of high locking firmness.
Description
Technical Field
The utility model belongs to the technical field of sewing machine, a locking subassembly of sewing machine thickness adjustment mechanism is related to.
Background
The overedger belongs to one of sewing machines, and the overedger is mainly used for serging and sewing textiles, and a cloth feeding tooth frame of a traditional overedger is fixed in angle and only can process cloth with specific thickness. When thick materials are sewn, the cloth is layered or stitches are too dense due to insufficient cloth dragging force of the cloth feeding tooth rack, and when thin materials are sewn, the stitches are wrinkled due to excessive feeding.
Various improvements have been made to solve the above problems, and some patents have been filed, for example, chinese patent literature discloses a feed adjusting mechanism of a overedger [ application No.: 201920911353.5; authorization notice number: CN210314737U ], which comprises a locking assembly connecting the supports; the locking assembly comprises a locking plate connected with the supporting piece and a locking knob connected with the adjusting rod; the locking plate is provided with an arc-shaped groove corresponding to the swing track of the adjusting rod; the adjusting rod is provided with a locking screw hole corresponding to the arc-shaped groove; the locking knob penetrates through the arc-shaped groove and then is arranged in the locking screw hole in a penetrating manner; therefore, the locking plate is positioned between the adjusting rod and the locking knob, and after the adjusting rod deflects to a preset position, the adjusting rod can be fixed relative to the supporting piece by tightening the locking knob, so that the angle of the eccentric shaft or the adjusting rod is locked.
The adjusting mechanism with the structure has the advantages that the locking knob is directly screwed when being locked, the locking plate is clamped and locked when being locked through the locking knob and the adjusting rod, the locking knob needs to be manufactured in a relatively large mode in order to guarantee the clamping area, meanwhile, the requirement for the joint of the adjusting plate and the locking plate is high, the adjusting plate is easy to loosen when the sewing machine works, and the locking effect is relatively poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the above-mentioned problem that exists among the prior art, provide a sewing machine thickness adjustment mechanism's locking subassembly, the technical problem of solution is how to improve the firm degree of locking subassembly.
The purpose of the utility model can be realized by the following technical proposal: the utility model provides a sewing machine thickness adjustment mechanism's locking subassembly, thickness adjustment mechanism is including adjusting the pole, and the locking subassembly includes locking knob and the lockplate that has the arc hole, and its characterized in that, locking subassembly still includes the locking piece, the bottom of adjusting the pole is bent and is set up and form the sticking portion, the embedding portion that the protrusion set up has on the locking piece, locking piece and sticking portion are located the both sides of lockplate, the embedding of embedding portion sets up in the arc hole, through the locking knob passes sticking portion and arc hole and links firmly the messenger mutually with the locking piece the pole links firmly mutually with the locking piece and links firmly mutually.
This locking subassembly has increased the locking piece, and the embedding part of locking piece is embedded into in the arc hole of lockplate, and when adjusting the gear, the embedding part plays the effect of direction, and the bottom of adjusting the pole is bent and is set up and form the sticking portion, and locking piece and sticking portion are located the both sides of lockplate, and when locking knob locking, be equivalent to pulling locking piece and lockplate locking, adjust pole and lockplate simultaneously and need not the laminating to improve the firm degree of locking subassembly. And the locking knob is directly abutted against the locking part and is not directly contacted with the arc-shaped hole, so that the locking knob can be correspondingly made smaller.
In the above locking assembly of the thickness adjusting mechanism of the sewing machine, the thickness of the embedding part along the horizontal direction is smaller than the depth of the arc-shaped hole along the horizontal direction. The structure ensures that the locking block plays a better role in guiding and locking, and ensures that the embedded part can not contact with the locking part.
In the locking assembly of the thickness adjusting mechanism of the sewing machine, the bottom of the adjusting rod is bent outwards along the horizontal direction and then bent downwards along the vertical direction to form the locking part, and the locking part is provided with a strip-shaped hole for the locking knob to pass through. The adjusting rod has higher strength through bending, and meanwhile through the bending in the mode, the locking part can be located on the outer side of the locking plate, and the strip-shaped hole is used for the locking knob to penetrate through and simultaneously provides a certain adjusting allowance.
In the above locking assembly of the thickness adjusting mechanism of the sewing machine, the locking plate is provided with a plurality of concave gear grooves, the bottom of the locking part is in a sharp angle shape, and the bottom of the locking part can move to the gear grooves. The closed angle at the bottom of the locking part points to the gear groove, so that a user can more conveniently judge whether the adjusting mechanism is adjusted in place.
In the above locking assembly of the thickness adjusting mechanism of the sewing machine, the locking plate is provided with a plurality of marks which are arranged in a recessed manner, and the marks are arranged adjacent to the corresponding gear slots. The mark plays a more visual role, so that a user can more conveniently judge whether the adjusting mechanism is adjusted in place, and the concave setting is marked simultaneously, so that the adjustment of the adjusting mechanism and the locking of the locking assembly cannot be influenced.
In the locking assembly of the thickness adjusting mechanism of the sewing machine, the sewing machine comprises a base, two ends of the bottom of the locking plate are respectively provided with a convex lug, the convex lugs are bent towards the base along the horizontal direction and then bent downwards along the vertical direction, and a fastener penetrates through the convex lugs to enable the locking plate to be fixedly connected with the base. The lug is arranged to play a role in fixing, and the lug and the locking plate are in a structure which can make a space for the locking block to slide.
In the above-mentioned lock assembly of the thickness adjusting mechanism of the sewing machine, the lock plate and the lug are of an integral structure. The locking plate and the lug are formed by processing modes such as metal plate stamping, bending and the like.
In the above-mentioned locking assembly of the thickness adjusting mechanism of the sewing machine, the junction of the lug and the locking plate is provided with a buffer notch. The arrangement of the buffering notch enables the lug and the locking plate not to crack when being bent.
Compared with the prior art, the utility model provides a pair of sewing machine thickness adjustment mechanism's locking subassembly has following advantage:
1. this locking Assembly has increased the locking piece, and the locking piece cooperation is adjusted the locking part of pole and is played better locking effect, improves the firm degree of locking, makes and adjusts pole and lockplate need not the laminating.
2. The locking knob of the locking assembly is directly abutted against the locking part and is not in direct contact with the arc-shaped hole, and the locking knob can be correspondingly made smaller.
Drawings
Fig. 1 is a state view of the present lock assembly after installation.
Fig. 2 is a schematic view of the overall structure of the present locking assembly.
Figure 3 is an exploded view of the overall structure of the present locking assembly.
In the figure, 1, an adjusting rod; 11. a locking portion; 12. a strip-shaped hole; 2. a locking knob; 3. a locking plate; 31. an arc-shaped hole; 32. a gear groove; 33. marking; 4. a locking block; 41. an insertion section; 5. a base; 6. a lug; 7. and buffering the gap.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in fig. 1, 2, 3, the sewing machine includes a base 5, a thickness adjusting mechanism includes an adjusting lever 1, and a locking assembly includes a locking knob 2, a locking plate 3, a locking block 4, and a lug 6.
Have arc hole 31 in the locking plate 3, the bottom of adjusting pole 1 bends outward along the horizontal direction earlier and bends downwards along vertical direction again and form locking portion 11, have strip hole 12 that supplies locking knob 2 to pass on the locking portion 11, locking block 4 is last to have the embedding part 41 of protrusion setting, the embedding of embedding part 41 sets up in arc hole 31, the thickness of embedding part 41 along the horizontal direction is less than the degree of depth of arc hole 31 along the horizontal direction, locking block 4 and locking portion 11 are located the both sides of locking plate 3, pass locking portion 11 and arc hole 31 through locking knob 2 and link firmly mutually with locking block 4 and make and adjust pole 1 and locking plate 3 link firmly mutually.
In this embodiment, the locking plate 3 has three recessed shift grooves 32, the locking plate 3 has three recessed indicators 33, the shift grooves 32 and the indicators 33 are disposed in a one-to-one correspondence, the indicators 33 are disposed adjacent to the corresponding shift grooves 32, and in actual production, the number of the shift grooves 32 and the indicators 33 may be two or four. The bottom of the lock 11 is pointed and the bottom of the lock 11 can move to the shift position groove 32.
The two ends of the bottom of the locking plate 3 are respectively provided with a convex lug 6 which is convexly arranged, the locking plate 3 and the convex lugs 6 are of an integrated structure, the convex lugs 6 are firstly bent towards the base 5 along the horizontal direction and then bent downwards along the vertical direction, the connection part of the convex lugs 6 and the locking plate 3 is provided with a buffering notch 7, and the locking plate 3 is fixedly connected with the base 5 by a fastener such as a bolt penetrating through the convex lugs 6.
During adjustment, the locking knob 2 is unscrewed, the adjusting rod 1 is rotated, the locking block 4 is driven by the locking knob 2 to move along the arc-shaped hole 31 until the locking part 11 points to the required gear groove 32, and then the locking knob 2 is locked.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although the terms of the adjustment lever 1, the locking portion 11, the strip-shaped hole 12, the locking knob 2, the locking plate 3, the arc-shaped hole 31, the shift position groove 32, the index 33, the locking block 4, the embedding portion 41, the base 5, the lug 6, the relief notch 7, etc. are used more extensively herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.
Claims (8)
1. The utility model provides a sewing machine thickness adjustment mechanism's locking subassembly, thickness adjustment mechanism is including adjusting pole (1), and the locking subassembly includes locking knob (2) and lockplate (3) that have arc hole (31), its characterized in that, locking subassembly still includes locking piece (4), the bottom of adjusting pole (1) is bent and is set up formation sticking portion (11), embedding portion (41) that the protrusion set up have on locking piece (4), locking piece (4) and sticking portion (11) are located the both sides of lockplate (3), embedding portion (41) embedding sets up in arc hole (31), through locking knob (2) pass sticking portion (11) and arc hole (31) and locking piece (4) link firmly the messenger mutually adjusting pole (1) link firmly mutually with lockplate (3).
2. The locking assembly of a sewing machine thickness adjusting mechanism according to claim 1, wherein the thickness of the embedding portion (41) in the horizontal direction is smaller than the depth of the arc-shaped hole (31) in the horizontal direction.
3. The locking assembly of the thickness adjusting mechanism of the sewing machine as claimed in claim 1, wherein the bottom of the adjusting lever (1) is bent outwards along the horizontal direction and then is bent downwards along the vertical direction to form the locking part (11), and the locking part (11) is provided with a strip-shaped hole (12) for the locking knob (2) to pass through.
4. The locking assembly of the sewing machine thickness adjusting mechanism according to claim 1, 2 or 3, characterized in that the locking plate (3) has a plurality of recessed shift grooves (32), the bottom of the locking part (11) is pointed, and the bottom of the locking part (11) can move to the shift grooves (32).
5. The locking assembly of the thickness adjusting mechanism of the sewing machine according to claim 4, wherein the locking plate (3) has a plurality of recessed indicators (33), and the indicators (33) are disposed adjacent to the corresponding shift grooves (32).
6. The locking assembly of the thickness adjusting mechanism of the sewing machine according to claim 1, 2 or 3, characterized in that the sewing machine comprises a base (5), both ends of the bottom of the locking plate (3) are provided with convex lugs (6), the lugs (6) are bent towards the base (5) along the horizontal direction and then bent downwards along the vertical direction, and the locking plate (3) is fixedly connected with the base (5) through the lugs (6) by fasteners.
7. The locking assembly of the sewing machine thickness adjusting mechanism according to claim 6, wherein the locking plate (3) and the lug (6) are of a unitary construction.
8. The locking assembly of the thickness adjusting mechanism of the sewing machine according to claim 6, characterized in that the junction of the lug (6) and the locking plate (3) has a buffer notch (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222854473.0U CN218436160U (en) | 2022-10-27 | 2022-10-27 | Locking assembly of thickness adjusting mechanism of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222854473.0U CN218436160U (en) | 2022-10-27 | 2022-10-27 | Locking assembly of thickness adjusting mechanism of sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218436160U true CN218436160U (en) | 2023-02-03 |
Family
ID=85072171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222854473.0U Active CN218436160U (en) | 2022-10-27 | 2022-10-27 | Locking assembly of thickness adjusting mechanism of sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218436160U (en) |
-
2022
- 2022-10-27 CN CN202222854473.0U patent/CN218436160U/en active Active
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