Wear-resistant bobbin case easy to disassemble and assemble

Abstract

The utility model belongs to the technical field of bobbin cases, and particularly relates to an easy-to-disassemble and assemble wear-resistant bobbin case which comprises an installation base, a rotating shuttle body is connected to the outer wall of the installation base in a rotating mode, an installation column is fixedly connected to the inner wall of the installation base, a positioning sleeve is connected to the outer wall of the installation column in a sleeved mode, and a bobbin case body is fixedly connected to one end of the positioning sleeve. An elastic piece is fixedly connected to the inner wall of the bobbin case body, a bobbin body is attached to the outer wall of the elastic piece, a bearing is arranged at the connecting position of the bobbin body and the positioning sleeve, a pressing rod penetrates through one end of the mounting column, and a driven block is arranged, and the pressing rod moves to drive a telescopic block to overcome the elastic force of a spring to slide along the interior of the mounting column. The telescopic block slides to drive the four sets of driving inclined blocks to move synchronously, the driving inclined blocks move to drive the driven blocks to be tightly attached to the inner wall of the positioning sleeve, the stability of the bobbin case body is improved, meanwhile, the telescopic block slides to be embedded into one end of the positioning groove through the positioning column, and rapid installation operation of the bobbin case body on the outer wall of the positioning sleeve is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of bobbin cases, and particularly relates to an easily disassembled and assembled wear-resistant bobbin case. Background Art

[0002] During the sewing process of a sewing machine or the embroidery process of an embroidery machine, the bobbin thread needs to be frequently replaced. The bobbin thread is installed in a bobbin, and the bobbin is installed in a bobbin case. Generally, after the bobbin is installed in the bobbin case, it can be regarded as an integrated structure. Replacing the bobbin case and the bobbin means replacing the bobbin thread, that is, when replacing the bobbin thread, the bobbin and the bobbin case can be replaced together.

[0003] When the existing bobbin case is in use, it is difficult to install the bobbin case, and the bobbin case is prone to shaking after installation, resulting in easy breakage of the thin thread outside the bobbin. In view of this, we propose an easily disassembled and assembled wear-resistant bobbin case. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an easily disassembled and assembled wear-resistant bobbin case to solve the problems that the bobbin case is difficult to install, the bobbin case is prone to shaking after installation, and the thin thread outside the bobbin is prone to breakage as mentioned in the above background art.

[0005] In view of this, the utility model provides an easily disassembled and assembled wear-resistant bobbin case, which includes an installation base. The outer wall of the installation base is rotatably connected with a rotary hook body. The inner wall of the installation base is fixedly connected with an installation column. A positioning sleeve is sleeved on the outer wall of the installation column. One end of the positioning sleeve is fixedly connected with a bobbin case body. An elastic piece is fixedly connected to the inner wall of the bobbin case body. The outer wall of the elastic piece is attached to a bobbin body. A bearing is arranged at the connection part between the bobbin body and the positioning sleeve. One end of the installation column penetrates through a pressing rod. One end of the pressing rod is fixedly connected with a telescopic block. One end of the telescopic block is fixedly connected with a driving inclined block. The outer wall of the driving inclined block is attached to a driven block which is slidably connected with the inner wall of the installation column. One end of the driving inclined block is fixedly connected with a spring. A positioning groove is formed in the inner wall of the telescopic block. A positioning column is movably connected to the outer wall of the positioning groove. The outer wall of the positioning column is fixedly connected with a connecting rod which is fixedly connected with the inner wall of the telescopic block.

[0006] Based on the above structure, the movement of the pressing rod drives the telescopic block to slide along the inside of the installation column against the elastic force of the spring. The sliding of the telescopic block drives the four driving inclined blocks to move synchronously. The movement of the driving inclined block drives the driven block to closely fit the inner wall of the positioning sleeve, improving the stability of the bobbin case body. At the same time, the sliding of the telescopic block realizes the quick installation operation of the bobbin case body on the outer wall of the positioning sleeve through the engagement of the positioning column and one end of the positioning groove.

[0007] Preferably, the elastic piece is in a semi-circular ring shape.

[0008] In this embodiment, by providing a semi-circular elastic piece, it is beneficial to increase the contact area between the elastic piece and the bobbin core body, and improve the stability of the rotation of the bobbin core body.

[0009] Preferably, a guiding groove is provided at the connecting part of the telescopic block and the mounting post.

[0010] In this embodiment, the movement of the pressing rod drives the telescopic block to slide along the inside of the mounting post against the elastic force of the spring, which is beneficial to improving the stability of the sliding of the telescopic block.

[0011] Preferably, the outer shapes of the active inclined block and the driven block are inclined, and there are four groups of the active inclined blocks.

[0012] In this embodiment, it is beneficial for the telescopic block to slide and drive the four groups of active inclined blocks to move synchronously.

[0013] Preferably, the positioning groove has two parts, and the outer shapes of the two parts of the positioning groove are in the shapes of "M" and "U" respectively.

[0014] In this embodiment, the telescopic block slides and is engaged with one end of the positioning groove through the positioning post to realize the positioning operation of the positioning post.

[0015] Preferably, the connecting rod is an elastic rod.

[0016] In this embodiment, it is convenient for the positioning post to slide along the outer wall of the positioning groove.

[0017] Preferably, the positioning sleeve forms a positioning structure with the mounting post through the active inclined block and the driven block.

[0018] In this embodiment, the movement of the active inclined block drives the driven block to closely fit with the inner wall of the positioning sleeve, realizing the quick installation operation of the bobbin case body on the outer wall of the positioning sleeve.

[0019] The beneficial effects of the present utility model are as follows:

[0020] 1. For this easily disassembled and wear-resistant bobbin case, by providing the driven block, the movement of the pressing rod drives the telescopic block to slide along the inside of the mounting post against the elastic force of the spring, the sliding of the telescopic block drives the four groups of active inclined blocks to move synchronously, and the movement of the active inclined block drives the driven block to closely fit with the inner wall of the positioning sleeve, improving the stability of the bobbin case body. At the same time, the telescopic block slides and is engaged with one end of the positioning groove through the positioning post, realizing the quick installation operation of the bobbin case body on the outer wall of the positioning sleeve.

[0021] 2. For this easily disassembled and wear-resistant bobbin case, by providing the positioning post and the positioning groove, the positioning groove has two parts, and the outer shapes of the two parts of the positioning groove are in the shapes of "M" and "U" respectively. The telescopic block slides and is engaged with one end of the positioning groove through the positioning post, realizing the switching operation of the positioning of the bobbin case body. Description of the Drawings

[0022] Figure 1 This is the schematic diagram of the overall structure of the present utility model;

[0023] Figure 2 This is the schematic diagram of the overall three-dimensional unfolded structure of the present utility model;

[0024] Figure 3 This is the schematic diagram of the overall sectional structure of the present utility model;

[0025] Figure 4 This is the schematic diagram of the sectional structure of the mounting post of the present utility model;

[0026] Figure 5 This is the schematic diagram of the connection structure of the telescopic block of the present utility model.

[0027] The markings in the figure are shown as:

[0028] 1. Mounting base; 2. Rotary hook body; 3. Mounting post; 4. Positioning sleeve; 5. Bobbin case body; 6. Elastic piece; 7. Bobbin core body; 8. Bearing; 9. Pressing rod; 10. Telescopic block; 11. Active inclined block; 12. Driven block; 13. Spring; 14. Positioning groove; 15. Positioning post; 16. Connecting rod. Specific embodiments

[0029] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope protected by the present application.

[0030] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. For the convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant fields may not be discussed in detail, but where appropriate, the technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0031] It should be noted that in the description of the present application, the terms "first", "second", etc. in the specification and claims are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are usually of the same category, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means an "or" relationship between the associated objects before and after.

[0032] It should be noted that in the description of the present application, the orientation or positional relationship indicated by the directional terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description. Without contrary instructions, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present application; the directional terms "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0033] It should be noted that in the present application, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in a reverse order according to the functions involved. For example, the described methods can be performed in an order different from that described, and various steps can be added, omitted, or combined. In addition, the features described with reference to certain examples can be combined in other examples.

[0034] Embodiment 1:

[0035] Please refer to Figures 1 - 5As shown in the figure, this embodiment provides an easily disassembled and wear-resistant shuttle shell, an installation base 1, a rotary shuttle main body 2 is rotatably connected to the outer wall of the installation base 1, an installation column 3 is fixedly connected to the inner wall of the installation base 1, a positioning sleeve 4 is sleeved on the outer wall of the installation column 3, one end of the positioning sleeve 4 is fixedly connected to a shuttle shell main body 5, a elastic piece 6 is fixedly connected to the inner wall of the shuttle shell main body 5, a shuttle core main body 7 is attached to the outer wall of the elastic piece 6, a bearing 8 is arranged at the connection part between the shuttle core main body 7 and the positioning sleeve 4, one end of the installation column 3 penetrates through a pressure rod 9, one end of the pressure rod 9 is fixedly connected to a telescopic block 10, one end of the telescopic block 10 is fixedly connected to a driving inclined block 11, a driven block 12 which is slidably connected to the inner wall of the installation column 3 is attached to the outer wall of the driving inclined block 11, one end of the driving inclined block 11 is fixedly connected to a spring 13, a positioning groove 14 is formed in the inner wall of the telescopic block 10, a positioning column 15 is movably connected to the outer wall of the positioning groove 14, and a connecting rod 16 which is fixedly connected to the inner wall of the telescopic block 10 is fixedly connected to the outer wall of the positioning column 15.

[0036] Among them, the movement of the pressure rod 9 drives the telescopic block 10 to slide along the inside of the installation column 3 against the elastic force of the spring 13. The sliding of the telescopic block 10 drives the four driving inclined blocks 11 to move synchronously. The movement of the driving inclined block 11 drives the driven block 12 to closely fit the inner wall of the positioning sleeve 4, improving the stability of the shuttle shell main body 5. At the same time, the sliding of the telescopic block 10 is engaged with one end of the positioning groove 14 through the positioning column 15, realizing the quick installation operation of the shuttle shell main body 5 on the outer wall of the positioning sleeve 4.

[0037] Embodiment 2:

[0038] This embodiment provides an easily disassembled and wear-resistant shuttle shell. In addition to including the technical solutions of the above embodiment, it also has the following technical features that the outer shape of the elastic piece 6 is in a semi-circular ring shape.

[0039] Among them, by arranging the elastic piece 6 in a semi-circular ring shape, it is beneficial to increase the contact area between the elastic piece 6 and the shuttle core main body 7 and improve the stability of the rotation of the shuttle core main body 7.

[0040] Embodiment 3:

[0041] This embodiment provides an easily disassembled and wear-resistant shuttle shell. In addition to including the technical solutions of the above embodiment, it also has the following technical features that a guiding groove is formed at the connection part between the telescopic block 10 and the installation column 3.

[0042] Among them, the movement of the pressure rod 9 drives the telescopic block 10 to slide along the inside of the installation column 3 against the elastic force of the spring 13, which is beneficial to improving the sliding stability of the telescopic block 10.

[0043] Embodiment 4:

[0044] This embodiment provides an easily disassembled and wear-resistant bobbin case. In addition to the technical solutions of the above embodiments, it also has the following technical features. The outer shapes of the active inclined block 11 and the driven block 12 are inclined, and there are four groups of active inclined blocks 11.

[0045] Among them, it is beneficial for the telescopic block 10 to slide and drive the four groups of active inclined blocks 11 to move synchronously.

[0046] Embodiment 5:

[0047] This embodiment provides an easily disassembled and wear-resistant bobbin case. In addition to the technical solutions of the above embodiments, it also has the following technical features. The positioning groove 14 is provided with two parts, and the outer shapes of the two parts of the positioning groove 14 are in the shape of "M" and "U" respectively.

[0048] Among them, the telescopic block 10 slides and is fitted with one end of the positioning groove 14 through the positioning column 15 to realize the positioning operation of the positioning column 15.

[0049] Embodiment 6:

[0050] This embodiment provides an easily disassembled and wear-resistant bobbin case. In addition to the technical solutions of the above embodiments, it also has the following technical features. The connecting rod 16 is an elastic rod.

[0051] Among them, it is convenient for the positioning column 15 to slide along the outer wall of the positioning groove 14.

[0052] Embodiment 7:

[0053] This embodiment provides an easily disassembled and wear-resistant bobbin case. In addition to the technical solutions of the above embodiments, it also has the following technical features. The positioning sleeve 4 and the mounting column 3 constitute a positioning structure through the active inclined block 11 and the driven block 12.

[0054] Among them, the movement of the active inclined block 11 drives the driven block 12 to closely fit with the inner wall of the positioning sleeve 4, realizing the rapid installation operation of the bobbin case body 5 on the outer wall of the positioning sleeve 4.

[0055] Working principle: First, the staff installs the bobbin core body 7 inside the bobbin case body 5 through the elastic piece 6. Then, the staff inserts the bobbin case body 5 into the mounting column 3 on the inner wall of the mounting base 1 through the positioning sleeve 4.

[0056] Then, the staff presses the pressure rod 9. The movement of the pressure rod 9 drives the telescopic block 10 to slide along the inside of the mounting column 3 against the elastic force of the spring 13. The sliding of the telescopic block 10 drives the four groups of active inclined blocks 11 to move synchronously. The movement of the active inclined block 11 drives the driven block 12 to closely fit with the inner wall of the positioning sleeve 4. At the same time, the telescopic block 10 slides and is fitted with one end of the positioning groove 14 through the positioning column 15, realizing the rapid installation operation of the bobbin case body 5 on the outer wall of the positioning sleeve 4.

[0057] The embodiments of the present application have been described above in conjunction with the accompanying drawings. Without conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application is not limited to the specific embodiments described above. The above specific embodiments are merely illustrative rather than restrictive. Those of ordinary skill in the art, under the inspiration of the present application and without departing from the purpose of the present application and the scope protected by the claims, can also make many forms, all of which fall within the protection scope of the present application.

Claims

1. An easily disassembled and wear-resistant bobbin case, characterized in that: The invention comprises a mounting base (1), the outer wall of the mounting base (1) is screwed with a rotary shuttle body (2), the inner wall of the mounting base (1) is fixedly connected with a mounting column (3), the outer wall of the mounting column (3) is sleeved with a positioning sleeve (4), one end of the positioning sleeve (4) is fixedly connected with a bobbin case body (5), the inner wall of the bobbin case body (5) is fixedly connected with a spring sheet (6), the outer wall of the spring sheet (6) is fitted with a bobbin core body (7), a bearing (8) is provided at the connection portion between the bobbin core body (7) and the positioning sleeve (4), one end of the mounting column (3) is penetrated by a pressure rod (9), and the One end of the pressure rod (9) is fixedly connected to a telescopic block (10), one end of the telescopic block (10) is fixedly connected to an active inclined block (11), the outer wall of the active inclined block (11) is fitted with a driven block (12) slidably connected to the inner wall of the mounting column (3), one end of the active inclined block (11) is fixedly connected to a spring (13), the inner wall of the telescopic block (10) is provided with a positioning groove (14), the outer wall of the positioning groove (14) is movably connected to a positioning column (15), and the outer wall of the positioning column (15) is fixedly connected to a connecting rod (16) fixedly connected to the inner wall of the telescopic block (10).

2. The easily detachable wear-resistant bobbin case according to claim 1, characterized in that: The spring piece (6) has a semicircular ring shape.

3. The easily detachable wear-resistant bobbin case according to claim 1, characterized in that: A guide groove is provided at the connection portion between the telescopic block (10) and the mounting column (3).

4. The easily detachable wear-resistant bobbin case according to claim 1, characterized in that: The active inclined block (11) and the driven block (12) are inclined in appearance, and four groups of the active inclined blocks (11) are provided.

5. The easily detachable wear-resistant bobbin case according to claim 1, characterized in that: The positioning groove (14) is provided with two parts, and the two parts of the positioning groove (14) are respectively in an "M" shape and a "U" shape.

6. The easily detachable wear-resistant bobbin case according to claim 1, characterized in that: The connecting rod (16) is an elastic rod.

7. The easily detachable wear-resistant bobbin case according to claim 1, characterized in that: The positioning sleeve (4) forms a positioning structure with the mounting column (3) through the active inclined block (11) and the driven block (12).

Images