Novel mini rechargeable sewing machine

Abstract

The utility model relates to the technical field of sewing machines, in particular to a novel mini rechargeable sewing machine. Comprising a shell and a handle rotationally connected to one end of the shell. According to the utility model, not only can a user easily move to a required position, but also a USB charging function is provided, a built-in lithium battery can be charged, a traditional plug-in or dry battery power supply mode is avoided for the user, high moving flexibility and outdoor operation convenience are realized, and the LED lamp is arranged for illumination, so that the use is convenient. It is ensured that a user can work clearly in any environment; according to the utility model, the multifunctional functions of desktop and hand holding are also realized, the handle is unique in design and can rotate and be folded, and when in use, a user only needs to simply unfold the handle, so that the holding stability can be improved, and the operation is more convenient; and when not in use, the handle can be folded, so that not only is the occupied space reduced, but also unnecessary collision and damage are avoided, and the practicability and the convenience of the folding handle disclosed by the utility model are fully shown.

Description

Technical Field

[0001] The utility model relates to the technical field of sewing machines, in particular to a novel mini charging sewing machine. Background Art

[0002] A sewing machine is a mechanical device used to sew clothes, cloth or other materials. Its development has gone through a process from manual to mechanized and then to automated, which has greatly improved production efficiency and reduced labor costs.

[0003] With the maturity of contemporary textile industry technology and the development of material technology, various fabrics with different material properties from traditional fabrics have been developed. Moreover, modern people not only dress for the right fit, but also pursue the functionality and effect of clothing. In order to meet the functional design of functional clothing, more diverse sewing methods are needed to meet the sewing needs of functional fabrics and functional clothing. However, in the process of using the existing technology, traditional sewing machines are often designed for industrial applications, with large size, not suitable for home use, and must be plugged in or powered by dry batteries. For this reason, we propose a new mini rechargeable sewing machine. Utility Model Content

[0004] The purpose of the utility model is to provide a novel mini rechargeable sewing machine to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A novel mini rechargeable sewing machine comprises a shell, and a handle rotatably connected to one end of the shell, a jumper mechanism is assembled on the inner side of the shell, and the jumper mechanism comprises a motor, a first gear, a second gear, a first shaft rod, a third gear, a fourth gear, a second shaft rod and a transmission assembly, a motor is fixed on the inner side of the shell, a first gear is fixed on the output end of the motor, a second gear is meshedly connected to the outer side of the first gear, a first shaft rod is fixed on the inner side of the second gear, the bottom of the first shaft rod is rotatably connected to the shell, a third gear is fixed on the outer side of the first shaft rod and below the second gear, a fourth gear is meshedly connected to the outer side of the third gear, a second shaft rod is fixed on the inner side of the fourth gear, the bottom of the second shaft rod is rotatably connected to the shell, and a transmission assembly is assembled on the outer side of the second shaft rod.

[0007] Preferably, the transmission assembly includes a fifth gear, a sixth gear, a third shaft, a first support seat, a first bevel gear, a fourth shaft, a cylindrical tube and a double-sided gear, the fifth gear is fixed to the top of the second shaft, the outer side of the fifth gear is meshingly connected to the sixth gear, the third shaft is fixed to the top of the sixth gear, the outer side of the third shaft is rotatably connected to the first support seat, one end of the first support seat is fixed to the inner side of the shell, the top of the third shaft is fixed to the first bevel gear, the top of the first bevel gear is meshingly connected to the double-sided gear, the fourth shaft is fixed to the inner side of the double-sided gear, one end of the fourth shaft is rotatably connected to the inner side of the shell, and a cylindrical tube is fixed to the outer side of the fourth shaft.

[0008] Preferably, a curved surface is provided at one end of the cylindrical tube, an adjusting arm is rotatably connected to one side of the interior of the shell, a force guiding column is fixed to one side of the adjusting arm, the force guiding column is slidably connected to the curved surface, one end of the adjusting arm is rotatably connected to a connecting arm, one end of the connecting arm is rotatably connected to an L-shaped horn arm, a crack groove is provided on the top of the shell, and the crack groove is clearance-matched with the L-shaped horn arm.

[0009] Preferably, one end of the fourth shaft rod passes through the cylindrical tube and is fixed with a swing arm, one end of the swing arm is fixed with a connecting column, one end of the connecting column is equipped with a movable block, one side of the movable block is provided with a positioning groove corresponding to the position of the connecting column, the positioning groove is slidably connected to the connecting column, the inner side of the movable block is slidably connected with a vertical guide column, the top of the vertical guide column is fixed to the shell, and the bottom of the movable block is fixed with a sewing needle assembly.

[0010] Preferably, a supporting mechanism is arranged between the fourth gear and the shell, and the supporting mechanism comprises a connecting rotating column, a seventh gear, a fifth shaft rod, a displacement frame, a side guide rail, a positioning tooth and a positioning slight plate, the outer side of the fourth gear is meshingly connected with a connecting rotating column, the top of the connecting rotating column is rotatably connected to the shell through a bearing, the bottom of the connecting rotating column is meshingly connected with the seventh gear, the inner side of the seventh gear is fixed with a fifth shaft rod, the bottom of the fifth shaft rod is rotatably connected to the shell, the top of the seventh gear is fixed with an arc-shaped protrusion, the top of the arc-shaped protrusion is in contact with the displacement frame, both sides of the displacement frame are slidably connected with side guide rails, the side guide rails are fixed to the shell, the top of the displacement frame is fixed with positioning teeth, and the outer side of the shell is fixed with a positioning slight plate corresponding to the position of the positioning teeth, and the positioning teeth are clearance-matched with the inner side of the positioning slight plate.

[0011] Preferably, a limiting frame is fixed to the top of the inner side of the shell, the inner side of the limiting frame is slidably connected with a column, the outer side of the column is sleeved with a spring, one end of the spring is fixed to the column, the other end of the spring is fixed to the limiting frame, and a pressing head is fixed to the bottom of the column, and the pressing head corresponds to the position of the positioning plate.

[0012] Preferably, one side of the double-sided gear is meshedly connected with an eighth gear, a short shaft is fixed on the top of the eighth gear, the short shaft is rotatably connected to the top of the shell through a bearing, and a wire wheel is fixed on the top of the short shaft.

[0013] It can be seen without a doubt that the above-mentioned technical solution of the present application can definitely solve the technical problem to be solved by the present application.

[0014] At the same time, through the above technical solutions, the utility model has at least the following beneficial effects:

[0015] 1. The utility model uses the structural design of the jumper mechanism and the top support mechanism to make the functional structure of the sewing machine exquisitely integrated inside the shell so that it can be easily placed in the home, which not only saves space but also makes it easier for users to move it to the required position, speeds up work efficiency, and improves the flexibility of the device.

[0016] 2. The utility model can charge the lithium battery through USB, without plugging in or using dry batteries for power supply, thus realizing mobile sewing and being more environmentally friendly. The LED light installed on the outside provides power for lighting, and the handle can be rotated and folded to achieve the dual-use effect of desktop and handheld, so that the user can unfold the handle when using it, thereby increasing the stability of holding and the convenience of operation, and the handle can be folded up when not needed, thereby reducing the occupied space and avoiding collision. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the cutaway structure of the housing of the utility model;

[0020] Figure 3 It is a schematic diagram of the connection structure between the sixth gear and the third shaft rod of the utility model;

[0021] Figure 4 This is a schematic diagram of the connection structure between the fourth shaft rod and the cylindrical tube of the utility model;

[0022] Figure 5 This is a schematic diagram of the connection structure of the column and the spring of the utility model;

[0023] Figure 6 It is a schematic diagram of the connection structure of the curved surface and the force-guiding column of the utility model;

[0024] Figure 7 It is a schematic diagram of the connection structure of the swing arm and the connecting column of the utility model;

[0025] Figure 8 It is a schematic diagram of the connection structure of the displacement frame and the side guide rail of the utility model.

[0026] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0027] In the figure: 1, housing; 2, handle; 3, motor; 4, first gear; 5, second gear; 6, first shaft; 7, third gear; 8, fourth gear; 9, second shaft; 10, fifth gear; 11, sixth gear; 12, third shaft; 13, first support seat; 14, first bevel gear; 15, fourth shaft; 16, cylinder; 17, curved surface; 18, adjustment arm; 19, force guide column; 20, connecting arm; 21, L-shaped sheep Angle arm; 22, swing arm; 23, connecting column; 24, movable block; 25, positioning groove; 26, vertical guide column; 27, sewing needle assembly; 28, connecting rotating column; 29, seventh gear; 30, fifth shaft; 31, displacement frame; 32, side guide rail; 33, positioning teeth; 34, column; 35, limit frame; 36, spring; 37, lower pressure head; 38, positioning plate; 39, double-sided gear; 40, eighth gear; 41, wire wheel. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0029] Example 1

[0030] Reference Figure 1-8A novel mini rechargeable sewing machine comprises a shell 1, and a handle 2 rotatably connected to one end of the shell 1, a jumper mechanism is assembled on the inner side of the shell 1, and the jumper mechanism comprises a motor 3, a first gear 4, a second gear 5, a first shaft 6, a third gear 7, a fourth gear 8, a second shaft 9 and a transmission assembly, a motor 3 is fixed on the inner side of the shell 1, a first gear 4 is fixed on the output end of the motor 3, a second gear 5 is meshedly connected to the outer side of the first gear 4, a first shaft 6 is fixed on the inner side of the second gear 5, a bottom of the first shaft 6 is rotatably connected to the shell 1, a third gear 7 is fixed on the outer side of the first shaft 6 and below the second gear 5, a fourth gear 8 is meshedly connected to the outer side of the third gear 7, and a fourth gear 8 is meshedly connected to the outer side of the fourth gear 8. A second shaft 9 is fixed to the inner side of the wheel 8, and the bottom of the second shaft 9 is rotatably connected to the housing 1. A transmission assembly is installed on the outer side of the second shaft 9. A lithium battery and a control circuit board are arranged in the handle 2, and the lithium battery is electrically connected to the motor 3. A USB charging port is arranged on one side of the housing 1, and the USB charging port is electrically connected to the lithium battery through the control circuit board, which is convenient for the user to charge. A button is arranged on the housing 1, and the button is electrically connected to the circuit board. They are all conventional means or common knowledge, and will not be repeated here. Those skilled in the art can make any selection according to their needs or convenience; at the same time, in the prior art, the outer side of the housing 1 can be equipped with an LED lighting lamp for lighting, which increases versatility. It is realized that there is no need to plug in or use dry battery power supply, which makes mobile sewing and outdoor sewing more convenient, and it is equipped with an LED light for power supply and lighting, so that the operator can see more clearly, and the built-in circuit board can control the sewing work through the button on the body.

[0031] The utility model cleverly integrates the core functions of the sewing machine into the inner side of the compact housing 1 through the well-designed jumper mechanism and the top support mechanism. This device is not only easy for users to move to the desired location, but more importantly, it has a USB charging function to power the built-in lithium battery. This innovative design allows users to bid farewell to the traditional plug-in or dry battery power supply mode, and achieves a high degree of mobility and convenience of outdoor operation.

[0032] What is more worth mentioning is that the device also realizes the multifunctionality of being both desktop and handheld. The handle 2 is uniquely designed and can be rotated and folded. When in use, the user only needs to simply unfold the handle 2 to increase the stability of the grip and make the operation more convenient; and when it is not needed, the handle 2 can be folded up, which not only reduces the occupied space, but also avoids unnecessary collision and damage. This design fully demonstrates the excellent performance of the device in practicality and convenience.

[0033] The transmission assembly includes a fifth gear 10, a sixth gear 11, a third shaft 12, a first support seat 13, a first bevel gear 14, a fourth shaft 15, a cylindrical tube 16 and a double-sided gear 39. The fifth gear 10 is fixed to the top of the second shaft 9, the outer side of the fifth gear 10 is meshed and connected with the sixth gear 11, the top of the sixth gear 11 is fixed with the third shaft 12, the outer side of the third shaft 12 is rotatably connected with the first support seat 13, one end of the first support seat 13 is fixed to the inner side of the housing 1, the top of the third shaft 12 is fixed with the first bevel gear 14, the top of the first bevel gear 14 is meshed and connected with the double-sided gear 39, the inner side of the double-sided gear 39 is fixed with the fourth shaft 15, one end of the fourth shaft 15 is rotatably connected to the inner side of the housing 1, the outer side of the fourth shaft 15 is fixed with a cylindrical tube 16, one side of the double-sided gear 39 is a bevel gear portion, the bevel gear portion is meshed and connected with the first bevel gear 14, and the other side is an annular gear portion, and the annular gear portion is meshed and connected with the eighth gear 40.

[0034] A curved surface 17 is provided at one end of the cylindrical tube 16, and an adjusting arm 18 is rotatably connected to one side of the inside of the shell 1. A force guiding column 19 is fixed to one side of the adjusting arm 18, and the force guiding column 19 is slidably connected to the curved surface 17. A connecting arm 20 is rotatably connected to one end of the adjusting arm 18, and an L-shaped ram horn arm 21 is rotatably connected to one end of the connecting arm 20. A crack groove is provided at the top of the shell 1, and the crack groove is clearance-matched with the L-shaped ram horn arm 21. The curved surface 17 is a continuous arc surface. By setting a smooth portion and a recessed portion, the angle of the adjusting arm 18 can be changed in a curved shape when the cylindrical tube 16 is rotated.

[0035] One end of the fourth shaft rod 15 passes through the cylindrical tube 16 and is fixed with a swing arm 22, one end of the swing arm 22 is fixed with a connecting column 23, one end of the connecting column 23 is equipped with a movable block 24, one side of the movable block 24 is provided with a positioning groove 25 corresponding to the position of the connecting column 23, the positioning groove 25 is slidably connected to the connecting column 23, the inner side of the movable block 24 is slidably connected with a vertical guide column 26, the top of the vertical guide column 26 is fixed to the shell 1, and the bottom of the movable block 24 is fixed with a sewing needle assembly 27, the sewing needle assembly 27 is an existing mature technology, and mainly plays the role of threading the needle.

[0036] A supporting mechanism is assembled between the fourth gear 8 and the housing 1, and the supporting mechanism includes a connecting rotating column 28, a seventh gear 29, a fifth shaft rod 30, a displacement frame 31, a side guide rail 32, a positioning tooth 33 and a positioning plate 38. The outer side of the fourth gear 8 is meshedly connected with the connecting rotating column 28, the top of the connecting rotating column 28 is rotatably connected to the housing 1 through a bearing, the bottom of the connecting rotating column 28 is meshedly connected with the seventh gear 29, the inner side of the seventh gear 29 is fixed with a fifth shaft rod 30, the bottom of the fifth shaft rod 30 is rotatably connected to the housing 1, and the top of the seventh gear 29 is fixed with an arc The top of the arc-shaped protrusion is in contact with the displacement frame 31, and the side guide rails 32 are slidably connected to the two sides of the displacement frame 31. The side guide rails 32 are fixed to the shell 1, and a positioning tooth 33 is fixed on the top of the displacement frame 31. A positioning plate 38 corresponding to the position of the positioning tooth 33 is fixed on the outer side of the shell 1. The positioning tooth 33 and the inner side of the positioning plate 38 have a clearance fit. When the seventh gear 29 rotates, the arc-shaped protrusion can push the displacement frame 31 to move upward. When the arc-shaped protrusion gradually moves away from the displacement frame 31, the displacement frame 31 moves downward under the action of gravity, and so on.

[0037] A limiting frame 35 is fixed to the top of the inner side of the shell 1, and a column 34 is slidably connected to the inner side of the limiting frame 35. A spring 36 is sleeved on the outer side of the column 34. One end of the spring 36 is fixed to the column 34, and the other end of the spring 36 is fixed to the limiting frame 35. A pressing head 37 is fixed to the bottom of the column 34. The position of the pressing head 37 corresponds to the position of the positioning plate 38. Through the setting of the spring 36, the pressing head 37 can be vertically limited, so that the pressing head 37 can continuously contact the positioning plate 38 during the vertical movement.

[0038] Example 2

[0039] Embodiment 1 is further optimized, specifically, as Figure 2 As shown, one side of the double-sided gear 39 is meshedly connected with the eighth gear 40, a short shaft is fixed on the top of the eighth gear 40, the short shaft is rotatably connected to the top of the shell 1 through a bearing, and a wire wheel 41 is fixed on the top of the short shaft. When the double-sided gear 39 rotates, it can drive the eighth gear 40 to rotate, so that the wire reel on the wire wheel 41 rotates, thereby achieving the function of assisting wire output.

[0040] From the above, we can know that:

[0041] The utility model aims at the technical problem that in the prior art, the traditional sewing machine is often designed for industrial applications, has a large volume and is not suitable for home use; the technical solutions of the above embodiments are adopted. At the same time, the implementation process of the above technical solutions is:

[0042] When in use, the housing 1 is placed on a desktop or a workbench for use. When the motor 3 is started, the output end of the motor 3 drives the first gear 4 to mesh with the second gear 5 to rotate, because the second gear 5 is fixed to the first shaft 6, the first shaft 6 is fixed to the third gear 7, the third gear 7 is meshed and connected to the fourth gear 8, and the fifth gear 10 is meshed and connected to the sixth gear 11, the third shaft 12 is rotatably connected to the first support seat 13, and the first bevel gear 14 is meshed and connected to the double-sided gear 39, so that the fourth shaft 15 can drive the cylindrical tube 16 to rotate, so that the guide column 19 moves along the outer side of the curved surface 17, so that the guide column 19 drives the adjustment arm 18 to rotate, and at the same time the adjustment arm 18 drives the L-shaped horn arm 21 to rotate through the connecting arm 20, so that the L-shaped horn arm 21 moves in the crack groove to realize the needle threading of the cotton thread.

[0043] Through the above configuration, the present application can certainly solve the above technical problems and achieve the following technical effects:

[0044] 1. The present invention integrates the functional structure of the sewing machine ingeniously inside the housing 1 through the structural design of the jumper mechanism and the top support mechanism, so that the device can be easily placed in the home, which not only saves space but also allows users to move it to the required position more easily, speeds up work efficiency, and improves the flexibility of the device.

[0045] 2. The utility model can charge the lithium battery through USB, which is convenient for powering the externally installed LED lamp, and the handle 2 can be rotated and folded to achieve the dual-use effect of desktop and handheld, so that the user can unfold the handle 2 when using it, which increases the stability of holding and the convenience of operation. When not needed, the handle 2 can be folded up to reduce the occupied space and avoid collision.

[0046] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.

Claims

1. A new mini rechargeable sewing machine, characterized in that: The invention comprises a housing (1) and a handle (2) rotatably connected to one end of the housing (1); a jumper mechanism is mounted on the inner side of the housing (1); the jumper mechanism comprises a motor (3), a first gear (4), a second gear (5), a first shaft (6), a third gear (7), a fourth gear (8), a second shaft (9) and a transmission assembly; a motor (3) is fixed on the inner side of the housing (1); a first gear (4) is fixed to the output end of the motor (3); a second gear (5) is meshingly connected to the outer side of the first gear (4); 5), a first shaft (6) is fixed on the inner side of the second gear (5), the bottom of the first shaft (6) is rotatably connected to the housing (1), a third gear (7) is fixed on the outer side of the first shaft (6) and located below the second gear (5), a fourth gear (8) is meshingly connected to the outer side of the third gear (7), a second shaft (9) is fixed on the inner side of the fourth gear (8), the bottom of the second shaft (9) is rotatably connected to the housing (1), and a transmission assembly is assembled on the outer side of the second shaft (9).

2. A novel mini rechargeable sewing machine according to claim 1, characterized in that: The transmission assembly comprises a fifth gear (10), a sixth gear (11), a third shaft (12), a first support seat (13), a first bevel gear (14), a fourth shaft (15), a cylindrical tube (16) and a double-sided gear (39), the fifth gear (10) is fixed on the top of the second shaft (9), the sixth gear (11) is meshedly connected on the outer side of the fifth gear (10), the third shaft (12) is fixed on the top of the sixth gear (11), and the outer side of the third shaft (12) is meshedly connected to the outer side of the third shaft (12). The third shaft (12) is rotatably connected to a first support seat (13), one end of the first support seat (13) is fixed to the inner side of the shell (1), a first bevel gear (14) is fixed to the top of the third shaft (12), a double-sided gear (39) is meshed on the top of the first bevel gear (14), a fourth shaft (15) is fixed to the inner side of the double-sided gear (39), one end of the fourth shaft (15) is rotatably connected to the inner side of the shell (1), and a cylindrical tube (16) is fixed to the outer side of the fourth shaft (15).

3. A novel mini rechargeable sewing machine according to claim 2, characterized in that: A curved surface (17) is provided at one end of the cylindrical tube (16); an adjusting arm (18) is rotatably connected to one side of the shell (1); a force guide column (19) is fixed to one side of the adjusting arm (18); the force guide column (19) is slidably connected to the curved surface (17); one end of the adjusting arm (18) is rotatably connected to a connecting arm (20); one end of the connecting arm (20) is rotatably connected to an L-shaped horn arm (21); a slit groove is provided at the top of the shell (1); the slit groove is clearance-matched with the L-shaped horn arm (21).

4. A novel mini rechargeable sewing machine according to claim 3, characterized in that: One end of the fourth shaft rod (15) passes through the cylindrical tube (16) and is fixed with a swing arm (22); one end of the swing arm (22) is fixed with a connecting column (23); one end of the connecting column (23) is equipped with a movable block (24); one side of the movable block (24) is provided with a positioning groove (25) corresponding to the position of the connecting column (23); the positioning groove (25) is slidably connected to the connecting column (23); the inner side of the movable block (24) is slidably connected with a vertical guide column (26); the top of the vertical guide column (26) is fixed to the shell (1); and the bottom of the movable block (24) is fixed with a sewing needle assembly (27).

5. The novel mini rechargeable sewing machine according to claim 1 is characterized in that: A supporting mechanism is installed between the fourth gear (8) and the housing (1), and the supporting mechanism includes a connecting rotating column (28), a seventh gear (29), a fifth shaft (30), a displacement frame (31), a side guide rail (32), a positioning tooth (33) and a positioning plate (38). The outer side of the fourth gear (8) is meshingly connected with the connecting rotating column (28), the top of the connecting rotating column (28) is rotatably connected to the housing (1) through a bearing, the bottom of the connecting rotating column (28) is meshingly connected with the seventh gear (29), and the inner side of the seventh gear (29) is fixed with the fifth shaft (33). 0), the bottom of the fifth shaft (30) is rotatably connected to the shell (1), the top of the seventh gear (29) is fixed with an arc-shaped protrusion, the top of the arc-shaped protrusion is in close contact with a displacement frame (31), both sides of the displacement frame (31) are slidably connected with side guide rails (32), the side guide rails (32) are fixed to the shell (1), the top of the displacement frame (31) is fixed with a positioning tooth (33), the outer side of the shell (1) is fixed with a positioning plate (38) corresponding to the position of the positioning tooth (33), and the positioning tooth (33) is clearance-matched with the inner side of the positioning plate (38).

6. A novel mini rechargeable sewing machine according to claim 5, characterized in that: A limiting frame (35) is fixed to the top of the inner side of the shell (1), the inner side of the limiting frame (35) is slidably connected to a column (34), the outer side of the column (34) is sleeved with a spring (36), one end of the spring (36) is fixed to the column (34), the other end of the spring (36) is fixed to the limiting frame (35), and a pressing head (37) is fixed to the bottom of the column (34), and the position of the pressing head (37) corresponds to that of the positioning plate (38).

7. A novel mini rechargeable sewing machine according to claim 2, characterized in that: One side of the double-sided gear (39) is meshedly connected with an eighth gear (40), a short shaft is fixed on the top of the eighth gear (40), the short shaft is rotatably connected to the top of the housing (1) via a bearing, and a wire wheel (41) is fixed on the top of the short shaft.

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