Sewing machine rear wheel shaft sleeve convenient to disassemble

Abstract

The utility model discloses a sewing machine rear wheel shaft sleeve convenient to disassemble, and relates to the technical field of sewing machine accessories. The sewing machine rear wheel shaft sleeve convenient to disassemble comprises a first shaft sleeve shell and a mounting structure, a second shaft sleeve shell is arranged on the surface of the first shaft sleeve shell, and the mounting structure comprises a first mounting block, a second mounting block, a clamping plate, a positioning block, a positioning plate, a mounting groove, a first inclined face, a positioning groove and a threaded rod. The first mounting block is fixedly connected to the surface of the second shaft sleeve shell, the second mounting block is fixedly connected to the surface of the first shaft sleeve shell, the clamping plate is fixedly connected with the first mounting block, and the positioning block is fixedly connected to the bottom of the clamping plate and fixedly connected with the first mounting block. The first shaft sleeve shell and the second shaft sleeve shell are disassembled through the mounting structure, and the problems that limitation possibly exists when the integrally-designed shaft sleeve adapts to different working environments and working conditions, and the manufacturing cost and the repairing cost are high are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewing machine accessories, and particularly relates to a rear wheel shaft sleeve of a sewing machine which is convenient to disassemble. Background Technique

[0002] The importance of the rear shaft sleeve of the sewing machine is mainly reflected in its functions and roles, including fixing the position of the shaft, reducing friction and wear, improving the performance and service life of the machine, and optimizing the machine structure. The rear shaft sleeve can fix the position of the shaft, prevent the direction deviation caused by vibration, ensure the stable operation of the sewing machine, and can also be used as a sliding bearing to reduce the friction and wear during mechanical operation, thereby protecting the internal parts of the machine and extending the service life. By reducing friction and wear, the shaft sleeve can improve the performance and overall service life of the sewing machine and reduce the maintenance cost.

[0003] Most of the existing rear wheel shaft sleeves of sewing machines are of an integrated design. The shaft sleeve of the integrated design may have limitations when adapting to different working environments and working conditions. The manufacturing cost and repair cost of the integrated shaft sleeve are relatively high. If there is a problem, the entire integrated shaft sleeve needs to be replaced. Therefore, a rear wheel shaft sleeve of a sewing machine which is convenient to disassemble is needed. Content of the Utility Model

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and to provide a rear wheel shaft sleeve of a sewing machine which is convenient to disassemble, which can solve the problems that the shaft sleeve of the integrated design may have limitations when adapting to different working environments and working conditions and the manufacturing cost and repair cost are relatively high.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a rear wheel shaft sleeve of a sewing machine which is convenient to disassemble, including a first shaft sleeve housing and an installation structure. A second shaft sleeve housing is arranged on the surface of the first shaft sleeve housing. The installation structure includes a first installation block, a second installation block, a clamping plate, a positioning block, a positioning plate, an installation groove, a first inclined surface, a positioning groove and a threaded rod. The first installation block is fixedly connected to the surface of the second shaft sleeve housing. The second installation block is fixedly connected to the surface of the first shaft sleeve housing. The clamping plate is fixedly connected to the first installation block. The positioning block is fixedly connected to the bottom of the clamping plate. The positioning plate is fixedly connected to the first installation block. The positioning plate is located below the positioning block. The installation groove is opened on the surface of the second installation block. The positioning groove is opened on the surface of the second installation block. The positioning groove is located at the bottom of the installation groove. The first inclined surface is arranged on both sides of the installation groove. The threaded rod is threadedly connected to both the positioning plate and the positioning block.

[0006] Preferably, a second clamping block is fixedly connected to the surface of the first shaft sleeve housing. A first clamping block is fixedly connected to the surface of the second shaft sleeve housing. A clamping block is fixedly connected to the surface of the first clamping block. A clamping groove adapted to the clamping block is opened in the second clamping block. A second inclined surface is arranged inside the clamping groove.

[0007] Preferably, both the clamping plate and the positioning block are slidably connected to the installation groove, and the positioning plate is slidably connected to the positioning groove.

[0008] Preferably, the interior of the positioning plate is provided with a thread adapted to the threaded rod.

[0009] Preferably, the bottom of the second mounting block is provided with an opening through which the threaded rod can pass.

[0010] Preferably, a receiving groove is provided between the first sleeve housing and the second sleeve housing. Both the bottom of the first sleeve housing and the second sleeve housing are provided with slotted openings, and the surfaces of both the first sleeve housing and the second sleeve housing are provided with openings. Threaded cylinders are fixedly connected to the surfaces of both the first sleeve housing and the second sleeve housing, and bolts are threadedly connected inside the two threaded cylinders.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. For the easily detachable rear wheel sleeve of the sewing machine, the disassembly between the first sleeve housing and the second sleeve housing is realized through the installation structure, solving the problems that the integrally designed sleeve may have limitations when adapting to different working environments and working conditions, and the manufacturing cost and repair cost are relatively high. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present utility model will be further described below with reference to the drawings and embodiments:

[0014] Figure 1 It is a schematic diagram of the body of the present utility model;

[0015] Figure 2 It is a schematic diagram of the installation structure of the present utility model;

[0016] Figure 3 It is a schematic diagram of the clamping block of the present utility model.

[0017] Reference numerals: 1, first sleeve housing; 2, second sleeve housing; 3, receiving groove; 4, threaded cylinder; 5, slotted opening; 6, opening; 7, first mounting block; 8, second mounting block; 9, first clamping block; 10, second clamping block; 11, clamping plate; 12, positioning block; 13, positioning plate; 14, installation groove; 15, first inclined surface; 16, positioning groove; 17, threaded rod; 18, clamping block; 19, clamping groove; 20, second inclined surface. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The role of the drawings is to supplement the description of the text part of the specification, enabling people to visually and vividly understand each technical feature and the overall technical solution of the present utility model, but it should not be construed as a limitation on the protection scope of the present utility model.

[0019] In the description of the present utility model, it should be understood that with regard to the orientation description, for example, the orientation or positional relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0020] In the description of the present utility model, greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. If the first and second are described, it is only for the purpose of distinguishing technical features, and it cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0021] In the description of the present utility model, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the technical field can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution.

[0022] Please refer to Figures 1-3, the present utility model provides a technical solution: a rear wheel shaft sleeve of a sewing machine that is easy to disassemble, including a first shaft sleeve housing 1 and an installation structure. A second shaft sleeve housing 2 is arranged on the surface of the first shaft sleeve housing 1. The installation structure includes a first installation block 7, a second installation block 8, a clamping plate 11, a positioning block 12, a positioning plate 13, an installation groove 14, a first inclined surface 15, a positioning groove 16, and a threaded rod 17. The first installation block 7 is fixedly connected to the surface of the second shaft sleeve housing 2, the second installation block 8 is fixedly connected to the surface of the first shaft sleeve housing 1, the clamping plate 11 is fixedly connected to the first installation block 7, the positioning block 12 is fixedly connected to the bottom of the clamping plate 11, the positioning plate 13 is fixedly connected to the first installation block 7, the positioning plate 13 is located below the positioning block 12, the installation groove 14 is opened on the surface of the second installation block 8, the positioning groove 16 is opened on the surface of the second installation block 8, the positioning groove 16 is located at the bottom of the installation groove 14, the first inclined surface 15 is arranged on both sides of the installation groove 14, and the threaded rod 17 is threadedly connected to both the positioning plate 13 and the positioning block 12. During installation, align the positioning plate 13 with the positioning groove 16, align the clamping plate 11 and the positioning block 12 with the installation groove 14 and install them inside the second installation block 8. The first inclined surface 15 on the installation groove 14 can make the installation easier. Then, threadedly install the threaded rod 17 inside the second installation block 8. The threaded rod 17 passes through the positioning plate 13 and the positioning block 12 in sequence and is tightened, thereby realizing the installation between the first installation block 7 and the second installation block 8, and further facilitating the installation between the first shaft sleeve housing 1 and the second shaft sleeve housing 2. During disassembly, just unscrew the threaded rod 17. The operation is convenient, the structure is stable, and it is easy to use. The disassembly between the first shaft sleeve housing 1 and the second shaft sleeve housing 2 is realized through the installation structure, solving the problems that the integrally designed shaft sleeve may have limitations when adapting to different working environments and working conditions, and the manufacturing cost and repair cost are relatively high.

[0023] Furthermore, a second clamping block 10 is fixedly connected to the surface of the first shaft sleeve housing 1, a first clamping block 9 is fixedly connected to the surface of the second shaft sleeve housing 2, a clamping block 18 is fixedly connected to the surface of the first clamping block 9, a clamping groove 19 adapted to the clamping block 18 is opened inside the second clamping block 10, and a second inclined surface 20 is arranged inside the clamping groove 19. Installing the clamping block 18 inside the 19 can further enhance the stability of the structure and also facilitate installation.

[0024] Secondly, both the pallet 11 and the positioning block 12 are slidably connected to the installation groove 14, the positioning plate 13 is slidably connected to the positioning groove 16, a thread adapted to the threaded rod 17 is provided inside the positioning plate 13, an opening through which the threaded rod 17 can pass is provided at the bottom of the second mounting block 8, a receiving groove 3 is provided between the first bushing housing 1 and the second bushing housing 2, slots 5 are provided at the bottoms of both the first bushing housing 1 and the second bushing housing 2, openings 6 are provided on the surfaces of both the first bushing housing 1 and the second bushing housing 2, threaded cylinders 4 are fixedly connected to the surfaces of both the first bushing housing 1 and the second bushing housing 2, and bolts are threadedly connected inside the two threaded cylinders 4. By tightening the bolts, the fixation between the first bushing housing 1 and the second bushing housing 2 is achieved through the installation structure, making the structure more stable. Both the first bushing housing 1 and the second bushing housing 2 are formed by powder metallurgy die-casting, effectively reducing production and energy consumption. Since powdered raw materials are used, the raw materials can be utilized to the maximum extent, reducing waste and improving the material utilization rate.

[0025] Working principle: During installation, align the positioning plate 13 with the positioning groove 16, and align the pallet 11 and the positioning block 12 with the installation groove 14 and install them inside the second mounting block 8. The inclined surface 15 on the installation groove 14 can make the installation easier. Subsequently, thread the threaded rod 17 into the second mounting block 8, and the threaded rod 17 passes through the positioning plate 13 and the positioning block 12 in sequence and is tightened, thereby achieving the installation between the first mounting block 7 and the second mounting block 8, and further facilitating the installation between the first bushing housing 1 and the second bushing housing 2. During disassembly, just unscrew the threaded rod 17.

[0026] The above has described the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the knowledge scope of those of ordinary skill in the art in the said technical field, various changes can also be made without departing from the gist of the present invention.

Claims

1. A rear wheel axle sleeve of a sewing machine that is easy to disassemble, characterized in that, Comprising: A first bushing housing (1), on the surface of the first bushing housing (1) there is provided a second bushing housing (2); An installation structure, the installation structure includes a first mounting block (7), a second mounting block (8), a clamping plate (11), a positioning block (12), a positioning plate (13), an installation groove (14), a first inclined surface (15), a positioning groove (16) and a threaded rod (17). The first mounting block (7) is fixedly connected to the surface of the second bushing housing (2), the second mounting block (8) is fixedly connected to the surface of the first bushing housing (1), the clamping plate (11) is fixedly connected to the first mounting block (7), the positioning block (12) is fixedly connected to the bottom of the clamping plate (11), the positioning plate (13) is fixedly connected to the first mounting block (7), the positioning plate (13) is located below the positioning block (12), the installation groove (14) is opened on the surface of the second mounting block (8), the positioning groove (16) is opened on the surface of the second mounting block (8), the positioning groove (16) is located at the bottom of the installation groove (14), the first inclined surface (15) is provided on both sides of the installation groove (14), and the threaded rod (17) is threadedly connected to both the positioning plate (13) and the positioning block (12).

2. The detachable rear wheel shaft sleeve of a sewing machine according to claim 1, wherein: On the surface of the first bushing housing (1) there is fixedly connected a second clamping block (10), on the surface of the second bushing housing (2) there is fixedly connected a first clamping block (9), on the surface of the first clamping block (9) there is fixedly connected a clamping block (18), inside the second clamping block (10) there is opened a clamping groove (19) adapted to the clamping block (18), and inside the clamping groove (19) there is provided a second inclined surface (20).

3. The rear wheel axle sleeve of a sewing machine that is easy to disassemble according to claim 1, wherein: Both the clamping plate (11) and the positioning block (12) are slidably connected to the installation groove (14), and the positioning plate (13) is slidably connected to the positioning groove (16).

4. A detachable rear wheel axle sleeve of a sewing machine according to claim 1, characterized in that: Inside the positioning plate (13) there is opened a thread adapted to the threaded rod (17).

5. A detachable rear wheel shaft sleeve of a sewing machine according to claim 1, characterized in that: At the bottom of the second mounting block (8) there is opened an opening through which the threaded rod (17) can pass.

6. The detachable rear wheel axle sleeve of a sewing machine according to claim 1, wherein: Between the first bushing housing (1) and the second bushing housing (2) there is opened a receiving groove (3), at the bottom of both the first bushing housing (1) and the second bushing housing (2) there are opened slotted openings (5), on the surface of both the first bushing housing (1) and the second bushing housing (2) there are opened openings (6), on the surface of both the first bushing housing (1) and the second bushing housing (2) there are fixedly connected threaded cylinders (4), and inside the two threaded cylinders (4) there is threadedly connected a bolt.

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