A sewing machine electrical control cover and its limiting groove anti-skew structure

Abstract

This utility model discloses a sewing machine electrical control cover and its anti-skew structure with a limiting groove. The anti-skew structure with a limiting groove is disposed on the handwheel cover and the back cover, and includes: a limiting groove and a limiting buckle; the limiting groove is disposed at the edge of the handwheel cover and / or the back cover to be joined, and the limiting groove is provided with a guide inner wall and a snap-fit ​​protrusion; the limiting buckle is disposed at the edge of the back cover and / or the handwheel cover to be joined, and the limiting buckle is provided with a snap-fit ​​hole. The limiting buckle can be installed into the limiting groove along the guide inner wall so that the snap-fit ​​hole engages with the snap-fit ​​protrusion. This design can prevent skew during the splicing of the electrical control cover.

Description

Technical Field

[0001] This utility model relates to the field of sewing machine equipment technology, and in particular to a sewing machine electrical control cover and its limiting groove anti-skew structure. Background Technology

[0002] Traditional electrical control housings rely on manual alignment during assembly, which is prone to misalignment and results in gaps after screw installation. Ordinary positioning structures, such as clips, are easily worn and lose their positioning ability after long-term use.

[0003] Therefore, how to avoid misalignment during the splicing of the electrical control housing is a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0004] The purpose of this invention is to provide a limiting groove anti-skew structure that can prevent skew during the assembly of the electrical control housing. Another purpose of this invention is to provide a sewing machine electrical control housing that includes the above-mentioned limiting groove anti-skew structure.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A limiting slot anti-skew structure is provided in the handwheel cover and the back-hanging cover, comprising:

[0007] A limiting groove is provided at the edge of the handwheel cover and / or the back cover to be connected. The limiting groove is provided with a guide inner wall and a snap-fit ​​protrusion.

[0008] The limiting buckle is set at the edge of the back cover and / or handwheel cover to be connected. The limiting buckle is provided with a snap-fit ​​hole. The limiting buckle can be installed into the limiting groove along the inner wall of the guide so that the snap-fit ​​hole engages with the snap-fit ​​protrusion.

[0009] In one possible implementation, the limiting groove further includes a groove bottom plate, a snap-fit ​​protrusion is disposed on the groove bottom plate, the guide inner wall extends in a direction perpendicular to the groove bottom plate, and the cross section of the guide inner wall perpendicular to its axis is a U-shaped structure.

[0010] In one possible implementation, the sidewall of the limiting buckle can fit against the inner guide wall when it mates with the limiting groove to guide the movement of the limiting buckle.

[0011] In one possible implementation, the snap-fit ​​protrusion is installed at the middle position of the edge of the groove bottom plate, and its axial direction along the inner wall of the guide corresponds to the snap-fit ​​hole.

[0012] In one possible implementation, the cross-sectional shape of the snap-fit ​​protrusion and the snap-fit ​​hole is matched along their axis.

[0013] In one possible implementation, the inlet of the snap-fit ​​hole near the bottom plate of the slot is a flared structure, and the end of the snap-fit ​​protrusion is a tapered structure.

[0014] This application also provides a sewing machine electrical control cover, including a handwheel cover and a back-hanging cover that can be spliced ​​together, and a limiting groove anti-skew structure as described above, wherein the limiting groove anti-skew structure is disposed at the edge of the handwheel cover and the back-hanging cover to be joined.

[0015] In one possible implementation, the handwheel cover is provided with two limiting grooves or two limiting buckles at the edge to be connected, and the limiting grooves or limiting buckles are provided at both ends of the edge of the handwheel cover. The back cover is provided with two limiting buckles or two limiting grooves at the edge to be connected, and the limiting buckles or limiting grooves are provided at both ends of the edge of the back cover.

[0016] In one possible implementation, a limiting groove and a limiting buckle are provided at the edge of the handwheel cover to be connected, and a limiting buckle that cooperates with the limiting groove and a limiting groove that cooperates with the limiting buckle are provided at the corresponding position on the edge of the back cover.

[0017] In one possible implementation, the handwheel cover and the back cover are formed by injection molding.

[0018] Compared to the aforementioned background technology, the present invention provides a limiting groove anti-skewing structure, which is disposed on a handwheel cover and a back-hanging cover, including: a limiting groove and a limiting buckle; the limiting groove is disposed at the edge of the handwheel cover and / or the back-hanging cover to be connected, and the limiting groove is provided with a guide inner wall and a snap-fit ​​protrusion; the limiting buckle is disposed at the edge of the back-hanging cover and / or the handwheel cover to be connected, and the limiting buckle is provided with a snap-fit ​​hole, and the limiting buckle can be installed into the limiting groove along the guide inner wall so that the snap-fit ​​hole engages with the snap-fit ​​protrusion.

[0019] Specifically, the limiting groove and the limiting buckle are respectively installed on the edges of the handwheel cover and the back-hanging cover to be connected. When it is necessary to splice the handwheel cover and the back-hanging cover, simply mate the limiting buckle with the limiting groove to ensure that the handwheel cover and the back-hanging cover are aligned and will not be misaligned. When the limiting buckle mates with the limiting groove, the limiting buckle will advance along the guide inner wall of the limiting groove until the locking hole and the locking protrusion engage. This design can improve the efficiency of manual assembly, and the alignment of the handwheel cover and the back-hanging cover during splicing is guaranteed by the matching of the limiting buckle and the limiting groove. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the front structure of the handwheel cover and the back-hanging cover provided in the embodiment of this utility model;

[0022] Figure 2 This is a schematic diagram of the back structure of the handwheel cover and the back-hanging cover provided in the embodiments of this utility model;

[0023] Figure 3 This is an exploded front view of the handwheel cover and back-hanging cover provided in the embodiments of this utility model;

[0024] Figure 4 Exploded view of the back of the handwheel cover and the back-hanging cover provided in the embodiments of this utility model;

[0025] Figure 5 This is a schematic diagram of the matching structure of the limiting groove and the limiting buckle provided in the embodiment of this utility model;

[0026] Figure 6 This is a schematic diagram of the back-hanging cover structure provided in an embodiment of the present utility model;

[0027] Figure 7 This is a schematic diagram of the limiting groove structure provided in an embodiment of the present utility model;

[0028] Figure 8 This is a schematic diagram of the handwheel cover structure provided in an embodiment of the present utility model;

[0029] Figure 9 This is a schematic diagram of the limiting buckle structure provided in the embodiment of this utility model;

[0030] Figure 10 for Figure 9 Another structural diagram from a different angle.

[0031] in:

[0032] 01-Handwheel cover, 02-Back hanging cover;

[0033] 100-Limiting groove, 110-Guide inner wall, 120-Snap-fit ​​protrusion, 130-Groove bottom plate;

[0034] 200-Limit buckle, 210-Snap-in hole, 220-Side wall; Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left" and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the indicated position or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations of this utility model.

[0038] The purpose of this utility model is to provide a limiting slot anti-skew structure that can prevent skew during the splicing of the electrical control cover.

[0039] To achieve the above objectives, the present invention provides the following technical solution:

[0040] Please see Figures 1 to 10 This embodiment provides a limiting groove anti-skewing structure, which is disposed on the handwheel cover 01 and the back-hanging cover 02, including: a limiting groove 100 and a limiting buckle 200; the limiting groove 100 is disposed at the edge of the handwheel cover 01 and / or the back-hanging cover 02 to be connected, and the limiting groove 100 is provided with a guide inner wall 110 and a snap-fit ​​protrusion 120; the limiting buckle 200 is disposed at the edge of the back-hanging cover 02 and / or the handwheel cover 01 to be connected, and the limiting buckle 200 is provided with a snap-fit ​​hole 210, and the limiting buckle 200 can be installed into the limiting groove 100 along the guide inner wall 110 so that the snap-fit ​​hole 210 engages with the snap-fit ​​protrusion 120.

[0041] In this embodiment, when the limiting groove 100 and the limiting buckle 200 are set on the handwheel cover 01 and the back hanging cover 02, their positions need to ensure that when the limiting groove 100 and the limiting buckle 200 are in the fully engaged state, the handwheel cover 01 and the back hanging cover 02 can be aligned exactly, and there are no gaps at the edges where they are connected.

[0042] The limiting groove 100 and the limiting buckle 200 are respectively installed on the edges of the handwheel cover 01 and the back-hanging cover 02 to be connected. When it is necessary to splice the handwheel cover 01 and the back-hanging cover 02, it is only necessary to engage the limiting buckle 200 with the limiting groove 100 to ensure that the handwheel cover 01 and the back-hanging cover 02 are aligned and will not be misaligned. When the limiting buckle 200 engages with the limiting groove 100, the limiting buckle 200 will advance along the guide inner wall 110 of the limiting groove 100 until the engaging hole 210 and the engaging protrusion 120 engage. That is to say, in this embodiment, the guide inner wall 110 is equivalent to a guide rail, and The limiting buckle 200 acts as a slider, guiding the position of the handwheel cover 01 and the back-hanging cover 02 during assembly through the limiting buckle 200 and the limiting groove 100. Furthermore, in this embodiment, the engagement of the locking hole 210 and the locking protrusion 120 locks the handwheel cover 01 and the back-hanging cover 02, reducing the number of screws required for assembly. This design allows workers to quickly assemble the handwheel cover 01 and the back-hanging cover 02, improving manual assembly efficiency. Moreover, the engagement of the limiting buckle 200 and the limiting groove 100 ensures alignment of the handwheel cover 01 and the back-hanging cover 02 during assembly.

[0043] Furthermore, it is understood that the limiting groove 100 and the limiting buckle 200 in this embodiment can also be installed on other shells that need to be spliced, as needed, and this article does not make specific limitations here.

[0044] In one possible implementation, the limiting groove 100 further includes a groove bottom plate 130, a snap-fit ​​protrusion 120 is disposed on the groove bottom plate 130, the guide inner wall 110 extends in a direction perpendicular to the groove bottom plate 130, and the cross section of the guide inner wall 110 perpendicular to its axis is a U-shaped structure.

[0045] Specifically, such as Figures 4 to 7 As shown, the limiting groove 100 is similar to a cylindrical structure, but one side is an open side wall, and the other three sides are guide inner walls 110. The bottom of the limiting groove 100 is a groove bottom plate 130. The three guide inner walls 110 are perpendicular to the groove bottom plate 130. When the limiting buckle 200 is installed in the limiting groove 100, it will abut against the groove bottom plate 130 to limit the position of the limiting buckle 200 in the limiting groove 100.

[0046] Meanwhile, in this embodiment, the snap-fit ​​protrusion 120 is set on the bottom plate 130 of the groove, and its position needs to correspond to the position of the snap-fit ​​hole 210. That is to say, when the limiting buckle 200 is installed in place and abuts against the bottom plate 130 of the groove, the snap-fit ​​protrusion 120 just snaps into the snap-fit ​​hole 210.

[0047] Furthermore, the sidewall 220 of the limiting buckle 200 can fit against the guide inner wall 110 when it mates with the limiting groove 100, so as to guide the movement of the limiting buckle 200.

[0048] In this embodiment, the three-sided guide inner wall 110 forms a U-shaped structure, which can smoothly and accurately guide the movement of the limiting buckle 200. Therefore, the shape of the limiting buckle 200 needs to be set to be the same as the cross-sectional shape of the limiting groove 100. Specifically, when the limiting buckle 200 and the limiting groove 100 are engaged, it is necessary to ensure that the three side walls of the limiting buckle 200 are in contact with the guide inner wall 110. This can prevent the two from deviating from the preset direction when moving, and can ensure that the limiting buckle 200 and the limiting groove 100 are properly aligned.

[0049] In one possible implementation, the snap-fit ​​protrusion 120 is installed at the middle position of the edge of the groove bottom plate 130, and its axial direction along the guide inner wall 110 corresponds to the snap-fit ​​hole 210.

[0050] In this embodiment, the snap-fit ​​protrusion 120 is located on the only side of the groove bottom plate 130 without the guide inner wall 110. At the same time, when the limiting buckle 200 is in contact with the guide inner wall 110 on its three side walls, the snap-fit ​​hole 210 is exactly on the same straight line as the snap-fit ​​protrusion 120. That is to say, the snap-fit ​​hole 210 can just match the snap-fit ​​protrusion 120. The shapes of the snap-fit ​​protrusion 120 and the snap-fit ​​hole 210 can be adjusted according to the actual situation, but it is necessary to ensure that the two will not move relative to each other when snapped in place, that is, the two can be fixed together after they are engaged.

[0051] Furthermore, the cross-sectional shapes of the snap-fit ​​protrusion 120 and the snap-fit ​​hole 210 are matched along their axes.

[0052] In this embodiment, the snap-fit ​​hole 210 is square in shape, and the cross-section of the snap-fit ​​protrusion 120 is also square. Of course, the snap-fit ​​protrusion 120 and the snap-fit ​​hole 210 can also be adjusted to other shapes according to actual needs, which are not specifically limited in this article.

[0053] In one possible implementation, the inlet of the snap-fit ​​hole 210 near the bottom plate 130 of the groove has a flared structure, and the end of the snap-fit ​​protrusion 120 has a tapered structure.

[0054] Understandably, in order to facilitate the engagement of the snap-fit ​​protrusion 120 and the snap-fit ​​hole 210, the top of the snap-fit ​​protrusion 120 can be tapered out, and the bottom of the snap-fit ​​hole 210 can be widened. In this way, when the two are engaged, the snap-fit ​​protrusion 120 can easily enter the snap-fit ​​hole 210 to complete the engagement.

[0055] This application also provides a sewing machine electrical control cover, including a handwheel cover 01 and a back-hanging cover 02 that can be spliced ​​together, and a limiting groove anti-skew structure as described above, the limiting groove anti-skew structure being disposed at the edges of the handwheel cover 01 and the back-hanging cover 02 to be joined.

[0056] Specifically, such as Figures 1 to 10 As shown, in this embodiment, the anti-skew structure with limiting groove is applied to the handwheel cover 01 and the back-hanging cover 02 to be spliced. Specifically, the anti-skew structure with limiting groove can be set at the edge of one side of the handwheel cover 01 and the back-hanging cover 02. When splicing these two, the two sides can be aligned and fixedly connected by the anti-skew structure with limiting groove. Since the limiting groove 100 and the limiting buckle 200 in the anti-skew structure with limiting groove have guiding and alignment functions, the handwheel cover 01 and the back-hanging cover 02 with the anti-skew structure with limiting groove can significantly improve their assembly efficiency and also ensure that the two are aligned so that the subsequent fasteners can be installed.

[0057] In one possible implementation, the handwheel cover 01 is provided with two limiting grooves 100 or two limiting buckles 200 at the edge to be connected, and the limiting grooves 100 or limiting buckles 200 are provided at both ends of the edge of the handwheel cover. The back cover 02 is provided with two limiting buckles 200 or two limiting grooves 100 at the edge to be connected, and the limiting buckles 200 or limiting grooves 100 are provided at both ends of the edge of the back cover 02.

[0058] In one embodiment, two limiting grooves 100 or two limiting buckles 200 can be provided at the mating edge of the handwheel cover 01 near both ends, and two limiting buckles 200 or two limiting grooves 100 can be provided at the mating edge of the back cover 02. The positions of the limiting grooves 100 and the limiting buckles 200 need to correspond to ensure that when they are engaged, the handwheel cover 01 and the back cover 02 can be correctly spliced ​​together, that is, the two are aligned and there are no gaps.

[0059] In another possible implementation, a limiting groove 100 and a limiting buckle 200 are provided at the edge of the handwheel cover 01 to be docked, and a limiting buckle 200 that cooperates with the limiting groove 100 and a limiting groove 100 that cooperates with the limiting buckle 200 are provided at the corresponding position of the edge of the back cover 02.

[0060] A limiting groove 100 and a limiting buckle 200 can be set at the mating edge of the handwheel cover 01. Correspondingly, a limiting buckle 200 and a limiting groove 100 can also be set at the mating edge of the back cover 02. It should be noted that during the setting process, it is necessary to ensure that each limiting buckle 200 can cooperate with the corresponding limiting groove 100.

[0061] Of course, the specific number of limiting grooves 100 and limiting buckles 200 can be adjusted according to the actual situation, and this article does not make specific limitations.

[0062] In one possible implementation, the handwheel cover 01 and the back-mounted cover 02 are formed by injection molding.

[0063] It is understandable that the handwheel cover 01 and the back cover 02 are made of plastic. Therefore, in order to improve their processing efficiency, they can be formed by injection molding. The limiting groove 100 and the limiting buckle 200 can also be manufactured simultaneously by injection molding.

[0064] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0065] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0066] The embodiments provided by this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. A limiting slot anti-deflection structure arranged between a hand wheel cover (01) and a back hanging cover (02), characterized in that, include: A limiting groove (100) is provided at the edge of the handwheel cover (01) and / or the back cover (02) to be docked. The limiting groove (100) is provided with a guide inner wall (110) and a snap-fit ​​protrusion (120). A limiting buckle (200) is provided at the edge of the back cover (02) and / or the handwheel cover (01) to be connected. The limiting buckle (200) is provided with a snap-fit ​​hole (210). The limiting buckle (200) can be installed into the limiting groove (100) along the guide inner wall (110) so that the snap-fit ​​hole (210) engages with the snap-fit ​​protrusion (120).

2. The anti-deflection structure of claim 1, wherein, The limiting groove (100) also includes a groove bottom plate (130), the snap-fit ​​protrusion (120) is disposed on the groove bottom plate (130), the guide inner wall (110) extends in a direction perpendicular to the groove bottom plate (130), and the cross section of the guide inner wall (110) perpendicular to its axis is a U-shaped structure.

3. The anti-tilt structure of claim 2, wherein The sidewall (220) of the limiting buckle (200) can fit against the guide inner wall (110) when it mates with the limiting groove (100) to guide the movement of the limiting buckle (200).

4. The anti-tilt structure of claim 3, wherein The snap-fit ​​protrusion (120) is installed at the middle position of the edge of the groove bottom plate (130), and it corresponds to the snap-fit ​​hole (210) along the axial direction of the guide inner wall (110).

5. The anti-tilt structure of claim 4, wherein The cross-sectional shapes of the snap-fit ​​protrusion (120) and the snap-fit ​​hole (210) along their axis are matched.

6. The anti-tilt structure of claim 5, wherein The inlet of the snap-fit ​​hole (210) near the bottom plate (130) is flared, and the end of the snap-fit ​​protrusion (120) is tapered.

7. A sewing machine electrical control cover, characterized in that, It includes a handwheel cover (01) and a back-hanging cover (02) that can be spliced ​​together, and also includes a limiting groove anti-skew structure as described in any one of claims 1-6, wherein the limiting groove anti-skew structure is disposed at the edge of the handwheel cover (01) and the back-hanging cover (02) to be joined.

8. The sewing machine electrical control housing according to claim 7, characterized in that, The handwheel cover (01) is provided with two limiting grooves (100) or two limiting buckles (200) at the edge to be connected, and the limiting grooves (100) or the limiting buckles (200) are provided at both ends of the edge of the handwheel cover. The back cover (02) is provided with two limiting buckles (200) or two limiting grooves (100) at the edge to be connected, and the limiting buckles (200) or the limiting grooves (100) are provided at both ends of the edge of the back cover (02).

9. The sewing machine electrical control housing according to claim 7, characterized in that, The handwheel cover (01) is provided with a limiting groove (100) and a limiting buckle (200) at the edge to be connected. The back cover (02) is provided with a limiting buckle (200) that cooperates with the limiting groove (100) and a limiting groove (100) that cooperates with the limiting buckle (200) at the corresponding position on the edge.

10. The sewing machine electrical control housing according to claim 7, characterized in that, The handwheel cover (01) and the back-hanging cover (02) are formed by injection molding.

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