Sewing machine mounting machine shell

Abstract

The sewing machine installation machine shell comprises a shell body, a connecting shaft, an installation bearing and a limiting piece, an installation hole is formed in the shell body, the installation bearing is arranged in the installation hole, and the connecting shaft is connected with the shell body through the installation bearing; the limiting piece sleeves the outer side of the mounting bearing and is used for limiting the mounting bearing in the mounting hole; the outer diameter of the mounting bearing is D1, the inner diameter of the mounting hole is D2, and the outer diameter of the limiting piece is D3 and D3gt; d2 > = D1. According to the sewing machine mounting machine shell, the inner diameter of the mounting hole is larger than the outer diameter of the mounting bearing, so that the mounting bearing can be quickly inserted into the mounting hole, and mounting and dismounting of the mounting bearing and the shell body are facilitated; the limiting piece and the mounting bearing are coaxially arranged, and the outer diameter of the limiting piece is larger than the inner diameter of the mounting hole and the outer diameter of the mounting bearing at the same time, so that the limiting piece can limit the axial displacement of the mounting bearing, the connecting stability of the mounting bearing and the shell is guaranteed, the mounting bearing is not prone to disengaging from the mounting hole, and the connecting stability of the connecting shaft is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of sewing machines, and in particular to a sewing machine mounting housing. Background Art

[0002] The sewing machine's mounting housing, one end of which is connected to the table and the other end to the machine head, is used to mount the machine head. In the prior art, a drive mechanism is housed within the mounting housing and connected to the machine head. The drive mechanism includes a drive motor, an upper shaft, and a lower shaft. The upper shaft is connected to the drive motor, and the upper and lower shafts are each connected to the housing via bearings. A timing belt is provided between the upper and lower shafts to achieve linkage. When the bearings are mounted to the housing, mounting holes are provided in the housing. The mounting holes have a diameter smaller than the outer diameter of the bearings. The bearings are tightly connected to the mounting holes to ensure stability during rotation of the upper and lower shafts.

[0003] However, such a connection structure makes it difficult to install the bearing. The housing needs to be heated to expand the mounting hole, and then the bearing is driven into the mounting hole with great force. Similarly, when removing the bearing, the connection between the bearing and the mounting hole is too tight, making the removal process more complicated and laborious.

[0004] Therefore, the sewing machine mounting housing in the prior art has room for further improvement. Utility Model Content

[0005] In view of this, in order to solve the technical problem that the installation and disassembly process of the connection structure between the drive mechanism and the shell in the sewing machine mounting casing in the prior art is relatively complicated and laborious, the present application provides a sewing machine mounting casing, which is provided with a limit member for the installation of the bearing. The limit member is used to limit the axial displacement of the bearing. While ensuring the installation stability of the bearing and the shell, the aperture of the shell mounting hole does not need to be smaller than the outer diameter of the bearing, so as to simplify the installation and disassembly procedures and facilitate installation.

[0006] The present application provides a sewing machine mounting housing, comprising a housing, a connecting shaft, a mounting bearing, and a stopper. The housing is provided with a mounting hole, the mounting bearing is disposed in the mounting hole, and the connecting shaft is connected to the housing via the mounting bearing.

[0007] Wherein, the limiting member is sleeved on the outside of the mounting bearing, and the limiting member is used to limit the mounting bearing in the mounting hole;

[0008] The outer diameter of the mounting bearing is D1, the inner diameter of the mounting hole is D2, the outer diameter of the limiting member is D3, and D3>D2≥D1.

[0009] Compared with the prior art, in the sewing machine mounting housing of the present application, the mounting bearing is arranged in the mounting hole of the housing, and the inner diameter of the mounting hole is larger than the outer diameter of the mounting bearing, so that the mounting bearing can be inserted into the mounting hole relatively quickly, facilitating the installation and disassembly of the mounting bearing and the housing; and a limiting member is provided in the present application, the limiting member is coaxially arranged with the mounting bearing, and the outer diameter of the limiting member is larger than both the inner diameter of the mounting hole and the outer diameter of the mounting bearing, so that the limiting member can limit the axial displacement of the mounting bearing, ensuring the connection stability between the mounting bearing and the housing, making it difficult for the mounting bearing to脱出 from the mounting hole, and further ensuring the connection stability of the connecting shaft; and simplifying the installation and disassembly procedures.

[0010] Preferably, the limiting member is integrally formed with the mounting bearing;

[0011] Or,

[0012] The limiting member is provided with a strengthening hole, and the strengthening hole is coaxially arranged with the mounting hole;

[0013] At least part of the mounting bearing is located in the mounting hole, and at least part is located in the strengthening hole. The inner diameter of the strengthening hole is D4, where D4 < D1.

[0014] Preferably, the housing is further provided with a limiting hole, the limiting hole is coaxially arranged with the mounting hole, and the limiting hole is used for mounting the limiting member;

[0015] The outer diameter of the limiting hole is greater than or equal to the outer diameter of the limiting member.

[0016] Preferably, it further includes a limiting pressing plate, the limiting pressing plate is connected to the housing, the limiting pressing plate is arranged on the same side as the limiting member, and the limiting pressing plate is used to limit the limiting member or the mounting bearing on the housing.

[0017] Preferably, the limiting pressing plate is coaxially arranged with the mounting bearing. The inner diameter of the limiting pressing plate is D5, and the outer diameter is D6, where D5 < D3 < D6, and the limiting pressing plate is in contact with the limiting pressing member;

[0018] Or, D5 < D1 < D6, and the limiting pressing plate is in contact with the mounting bearing.

[0019] Preferably, it further includes a first connecting member, and the limiting member and the housing are connected through the first connecting member;

[0020] The limiting member is provided with a first connecting hole arranged axially, the housing is provided with a first matching hole corresponding to the first connecting hole, and the first connecting member is at least partially located in the first connecting hole and at least partially located in the first matching hole.

[0021] Preferably, it further comprises a second connecting member, and the limiting pressure plate is connected to the housing via the second connecting member;

[0022] A second connecting hole arranged axially is provided on the limiting pressure plate, a second matching hole corresponding to the second connecting hole is provided on the shell, and the second connecting member is at least partially located in the second connecting hole and at least partially located in the second matching hole.

[0023] Preferably, it further comprises a shaft sleeve, the shaft sleeve is sleeved on the connecting shaft, and the outer wall of the shaft sleeve is in contact with the inner wall of the mounting bearing;

[0024] Wherein, a limiting ring is provided at the end of the sleeve away from the limiting member, and the outer diameter of the limiting ring is larger than the inner diameter of the mounting bearing.

[0025] Preferably, it further comprises a driving motor, the connecting shaft is divided into an upper shaft and a lower shaft, the upper shaft and the lower shaft are spaced apart, and the driving motor is connected to the upper shaft;

[0026] The upper shaft is provided with a driving gear, the lower shaft is provided with a driven gear, and the driving gear and the driven gear are connected via a synchronous belt.

[0027] Preferably, at least two mounting plates are provided in the housing, the two mounting plates are spaced apart in the axial direction, and the mounting holes are provided on the mounting plates.

[0028] The sewing machine mounting housing of the present application has at least the following technical effects:

[0029] 1. By arranging a stopper on the outer sleeve of the mounting bearing, and the outer diameter of the stopper is larger than the inner diameter of the mounting hole, and the outer diameter of the mounting bearing is smaller than or equal to the inner diameter of the mounting hole, it is convenient to connect the mounting bearing with the mounting hole. At the same time, the stopper can prevent the mounting bearing from slipping out of the mounting hole, thereby increasing the stability of the connection between the mounting bearing and the housing;

[0030] 2. By setting a limit pressure plate, the limit pressure plate and the limit part are set on the same side, the limit pressure plate is connected to the shell, and the inner diameter of the limit pressure plate is smaller than the outer diameter of the limit part, thereby limiting the limit part so that the limit part can be fixed relative to the shell, ensuring the stability of the connection between the installed bearing and the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the three-dimensional structure of a sewing machine mounting housing provided in one embodiment of the present application;

[0032] Figure 2 1 is a schematic cross-sectional view of a sewing machine mounting housing provided in one embodiment of the present application;

[0033] Figure 3 yes Figure 2 A magnified schematic diagram of a local area A;

[0034] Figure 4 yes Figure 3 A schematic diagram of a partial B enlargement;

[0035] Figure 5 This is a schematic diagram of the structure provided by an embodiment of the present application Figure 1 ;

[0036] Figure 6 This is a schematic diagram of the structure provided by an embodiment of the present application Figure 2 .

[0037] Figure numerals: 1. housing; 2. upper shaft; 3. lower shaft; 4. mounting bearing; 5. limiting member; 6. limiting pressure plate; 7. driving motor; 8. driving gear; 9. driven gear; 10. bushing; 11. mounting plate; 12. limiting hole; 13. first connecting member; 14. limiting ring; 15. synchronous belt. DETAILED DESCRIPTION

[0038] In order to enable those skilled in the art to better understand the technical solutions of the present disclosure, the present disclosure is described in detail, clearly, and completely in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present disclosure and are not intended to limit the present disclosure.

[0039] In the description of this application, if there is a description of first or second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0040] Those skilled in the art should understand that, in the disclosure of this application, the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, which are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms cannot be understood as limiting this application.

[0041] The present application will be described in further detail below with reference to the accompanying drawings. Figures 1 to 6 illustrate.

[0042] Example 1

[0043] like Figures 1 to 3As shown, the present application provides a sewing machine mounting casing, which is an inverted L-shape as a whole, with the bottom of the mounting casing connected to the table top, and the front end of the mounting casing connected to the machine head; wherein, the mounting casing includes a shell 1 and a driving mechanism, the driving mechanism is arranged in the shell 1, the shell 1 is used to fix the driving mechanism, and the driving mechanism passes through the shell 1 and is connected to the machine head to provide power.

[0044] Specifically, such as Figure 2 As shown, a mounting plate 11 is provided in the shell 1, and a mounting hole is provided on the mounting plate 11 for installing the driving mechanism; wherein, the driving mechanism includes a connecting shaft and a driving motor 7, the driving motor 7 is connected to one end of the connecting shaft, the connecting shaft is connected to the mounting plate 11, and the end of the connecting shaft away from the driving motor 7 extends toward the machine head, that is, the connecting shaft includes an input end and an output end, the input end is connected to the driving motor 7, and the output end is connected to the machine head, wherein the portion of the connecting shaft close to the input end is connected to the mounting plate 11.

[0045] like Figure 2 As shown, the connecting shaft is divided into an upper shaft 2 and a lower shaft 3, and the upper shaft 2 and the lower shaft 3 are distributed up and down, and there is a gap between the two; the driving motor 7 is connected to the input end of the upper shaft 2, and the upper shaft 2 is provided with two mounting plates 11, and the two mounting plates 11 are arranged at intervals along the axial direction, and the center lines of the mounting holes on the two mounting plates 11 are on the same straight line. The upper shaft 2 is connected to the two mounting plates 11 in sequence, and a driving gear 8 is provided between the two mounting plates 11, and the driving gear 8 is sleeved on the upper shaft 2; similarly, the lower shaft 3 is provided with two mounting plates 11, and the two mounting plates 11 are arranged at intervals along the axial direction, and the center lines of the mounting holes on the two mounting plates 11 are on the same straight line. The lower shaft 3 is connected to the two mounting plates 11 in sequence, and a driven gear 9 is provided between the two mounting plates 11, and the driven gear 9 is sleeved on the upper shaft 2; wherein, Figure 2 As shown, the driving gear 8 and the driven gear 9 are connected by a synchronous belt 15, thereby realizing the transmission of the upper shaft 2 to the lower shaft 3.

[0046] In this embodiment, if Figure 3 As shown, it also includes an installation bearing 4 and a limit member 5. The installation bearing 4 is arranged in the installation hole, and the installation bearing 4 is sleeved on the connecting shaft. The inner wall of the installation bearing 4 fits with the outer wall of the connecting shaft, and the outer wall of the installation bearing 4 fits with the inner wall of the installation hole, that is, the connecting shaft is connected to the housing 1 through the installation bearing 4; the limit member 5 is sleeved on the installation bearing 4, and the limit member 5 is coaxially arranged with the installation bearing 4. The limit member 5 is arranged around the outer periphery of the installation bearing 4, and the limit member 5 is located at one end of the connecting shaft close to the drive motor 7; wherein, the outer diameter of the installation bearing 4 is D1, the inner diameter of the installation hole is D2, and the outer diameter of the limit member 5 is D3, wherein D3>D2≥D1, that is, the outer diameter of the limit member 5 is larger than the inner diameter of the installation hole, and the inner diameter of the installation hole is larger than or equal to the outer diameter of the installation bearing 4, so that the installation bearing 4 can be easily inserted into the installation hole, which can reduce the difficulty of installation.

[0047] like Figure 4 As shown, the housing 1 is further provided with a limiting hole 12, which is coaxially arranged with the mounting hole. The limiting hole 12 is arranged on the side of the mounting plate 11 close to the drive motor 7. The inner diameter of the limiting hole 12 is larger than the inner diameter of the mounting hole. The inner diameter of the limiting hole 12 is greater than or equal to the outer diameter of the limiting member 5. The limiting hole 12 is used to install the limiting member 5. In this embodiment, the limiting member 5 is an annular structure. The limiting member 5 is sleeved on the outer periphery of the mounting bearing 4. There is a gap between the end of the limiting member 5 and the end of the mounting bearing 4. The axial thickness of the limiting member 5 is less than or equal to the axial depth of the limiting hole 12. A limiting surface is formed between the limiting hole 12 and the mounting hole. The side of the limiting member 5 away from the drive motor 7 is in contact with the limiting surface, thereby limiting the mounting bearing 4, preventing the mounting bearing 4 from moving in a direction away from the drive motor 7, and ensuring the connection stability of the mounting bearing 4 to the connecting shaft.

[0048] Among them, Figure 3 As shown, it also includes a sleeve 10, which is sleeved on the connecting shaft, and the outer wall of the sleeve 10 fits with the inner wall of the mounting bearing 4, and the inner wall of the sleeve 10 fits with the outer wall of the connecting shaft. The sleeve 10 and the connecting shaft are interference fit, so that the sleeve 10 and the connecting shaft are tightly connected; wherein, the end of the sleeve 10 away from the limiting member 5 is provided with a limiting ring 14, the outer diameter of the limiting ring 14 is larger than the inner diameter of the mounting bearing 4, and the limiting ring 14 limits the displacement of the connecting shaft toward the driving motor 7, thereby preventing the connecting shaft from moving toward the driving motor 7; with the cooperation of the limiting ring 14 and the limiting member 5, the connecting shaft can be limited on the mounting plate 11, so that the connecting shaft will not easily move along the axial direction, thereby ensuring the transmission stability of the driving mechanism and further ensuring the operating stability of the sewing machine.

[0049] In this embodiment, the limiting member 5 and the mounting bearing 4 are integrally formed, thereby enhancing the connection stability between the limiting member 5 and the mounting bearing 4 and making the limiting effect of the limiting member 5 on the mounting bearing 4 more stable.

[0050] Example 2

[0051] This embodiment is further improved on the basis of the first embodiment; the difference between this embodiment and the first embodiment is that, in this embodiment, the limit member 5 and the mounting bearing 4 are separate structures, and the limit member 5 and the mounting plate 11 are connected by setting a connecting member.

[0052] Specifically, such as Figure 5As shown, the limiting member 5 is a ring structure. The limiting member 5 is provided with a strengthening hole, and the strengthening hole is coaxially arranged with the mounting hole. Among them, the sum of the axial depth of the strengthening hole and the axial depth of the mounting hole is equal to the axial length of the mounting bearing 4, so that at least part of the mounting bearing 4 is located in the mounting hole and at least part is located in the strengthening hole; and the inner diameter of the strengthening hole is D4, D4 < D1, that is, the diameter of the strengthening hole is smaller than the diameter of the mounting hole, so that the limiting member 5 is in interference fit with the mounting bearing 4, and the limiting member 5 axially limits the mounting bearing 4.

[0053] In this embodiment, the outer diameter of the limiting member 5 is less than or equal to the outer diameter of the limiting hole 12, and the axial depth of the limiting member 5 is less than the axial depth of the mounting hole, and the end face of the mounting bearing 4 close to the driving motor 7 is flush with the limiting member 5. Then, during installation, only the limiting member 5 needs to be processed to slightly enlarge the inner diameter of its strengthening hole, and then the limiting member 5 is sleeved on the mounting bearing 4, and the connection between the limiting member 5 and the mounting bearing 4 can be realized; compared with the prior art, the overall installation difficulty is reduced.

[0054] At the same time, as Figure 5 shown, the installation housing further includes a first connecting member 13, and the limiting member 5 and the mounting plate 11 are connected by the first connecting member 13; specifically, the limiting member 5 is provided with a first connecting hole arranged axially, the first connecting hole penetrates through the limiting member 5, and the mounting plate 11 is provided with a first matching hole corresponding to the first connecting hole. The first connecting member 13 is sequentially inserted into the first connecting hole and the first matching hole, so that at least part of the first connecting member 13 is located in the first connecting hole and at least part is located in the first matching hole, thereby realizing the fixed connection between the limiting member 5 and the mounting plate 11.

[0055] In this embodiment, the first connecting member 13 can be a screw, and corresponding threads are provided in the first connecting hole and the first matching hole, so that the first connecting member 13 is threadedly connected to the limiting member 5 and the mounting plate 11, which is convenient for the disassembly and installation of the limiting member 5 and the mounting plate 11.

[0056] Embodiment Three

[0057] This embodiment is further improved on the basis of Embodiment Two; as Figure 6 shown, the difference between this embodiment and Embodiment Two is that in this embodiment, the limiting member 5 and the mounting bearing 4 are an integral structure, so there is no strengthening hole on the limiting member 5.

[0058] Embodiment Four

[0059] This embodiment is a further expansion based on Embodiment 1; in this embodiment, it further includes a limiting pressure plate 6, which is connected to the housing 1. The limiting pressure plate 6 is arranged at the side of the mounting plate 11 close to the driving motor 7, that is, the limiting pressure plate 6 is arranged on the same side as the limiting member 5. The limiting pressure plate 6 is of an overall annular structure, the outer diameter of the limiting pressure plate 6 is larger than the outer diameter of the limiting hole 12, and the inner diameter of the inner hole of the limiting pressure plate 6 is at least smaller than the inner diameter of the mounting hole but larger than the inner hole diameter of the mounting bearing 4, so that the limiting pressure plate 6 can act on the outer side of the mounting bearing 4 or the outer side of the limiting member 5, thereby limiting the limiting member 5 or the mounting bearing 4 on the housing 1, and the limiting pressure plate 6 presses the mounting bearing 4 or the limiting member 5 on the mounting plate 11 to reduce the vibration between the mounting bearing 4 and the mounting plate 11 during the rotation of the connecting shaft.

[0060] Meanwhile, the mounting housing further includes a second connecting member, and the limiting pressure plate 6 is connected to the housing 1 through the second connecting member; specifically, the limiting pressure plate 6 is provided with second connecting holes arranged axially, the second connecting holes penetrate through the limiting pressure plate 6, and the mounting plate 11 is provided with second matching holes corresponding to the second connecting holes. The second connecting member is inserted into the second connecting holes and the second matching holes in sequence, so that at least part of the second connecting member is located in the second connecting holes and at least part of it is located in the second matching holes, thereby realizing the fixed connection between the limiting pressure plate 6 and the mounting plate 11.

[0061] In this embodiment, the second connecting member can be a screw, and corresponding threads are provided in the second connecting holes and the second matching holes, so that the second connecting member is threadedly connected to the limiting pressure plate 6 and the mounting plate 11, facilitating the disassembly and installation of the limiting pressure plate 6 and the mounting plate 11.

[0062] Among them, the inner diameter of the limiting pressure plate 6 is D5, and the outer diameter is D6, where D5 < D3 < D6. The inner diameter of the limiting pressure plate 6 is larger than the inner diameter of the mounting hole and at the same time smaller than the outer diameter of the limiting member 5. The side of the limiting pressure plate 6 away from the driving motor 7 is in contact with the side of the limiting member 5 facing the driving motor 7, as Figure 3 、 Figure 4 shown, the limiting pressure plate 6 acts on the limiting member 5 and presses the limiting member 5.

[0063] Among them, it should be noted that, as Figure 3 shown, in this embodiment, the inner diameter of the limiting pressure plate 6 is equal to the outer diameter of the mounting bearing 4, and the outer diameter of the mounting bearing 4 is equal to the inner diameter of the mounting hole.

[0064] Embodiment Five

[0065] This embodiment is an improvement based on Embodiment 4; the difference from Embodiment 4 is that in this embodiment, D5 < D1 < D6, that is, the inner diameter of the limit pressing plate 6 is smaller than the inner diameter of the mounting hole, and the side of the limit pressing plate 6 away from the drive motor 7 is in contact with the side of the mounting bearing 4 facing the drive motor 7, so that the limit pressing plate 6 presses the mounting bearing 4 on the limit bearing.

[0066] It should be noted that in the case where the solutions of the various embodiments of the present application do not conflict and the technical solutions can coexist, they can be arbitrarily combined into new embodiments.

[0067] The present application has been introduced in detail above. Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the present application and its core idea. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A sewing machine mounting housing, characterized in that: It includes a housing (1), a connecting shaft, a mounting bearing (4) and a limiting member (5). There is a mounting hole on the housing (1), the mounting bearing (4) is arranged in the mounting hole, and the connecting shaft is connected to the housing (1) through the mounting bearing (4). Among them, the limiting member (5) is sleeved outside the mounting bearing (4), and the limiting member (5) is used to limit the mounting bearing (4) in the mounting hole. The outer diameter of the mounting bearing (4) is D1, the inner diameter of the mounting hole is D2, and the outer diameter of the limiting member (5) is D3, where D3 > D2 ≥ D1.

2. The sewing machine mounting housing according to claim 1, wherein the limiting member (5) and the mounting bearing (4) are integrally formed; or, there is a reinforcing hole on the limiting member (5), and the reinforcing hole is coaxially arranged with the mounting hole; at least part of the mounting bearing (4) is located in the mounting hole, and at least part is located in the reinforcing hole. The inner diameter of the reinforcing hole is D4, where D4 < D1.

3. The sewing machine mounting housing according to claim 2, wherein there is also a limiting hole (12) on the housing (1), the limiting hole (12) is coaxially arranged with the mounting hole, and the limiting hole (12) is used to mount the limiting member (5); the outer diameter of the limiting hole (12) is greater than or equal to the outer diameter of the limiting member (5).

4. The sewing machine mounting housing according to claim 1 or 2, wherein it further includes a limiting pressing plate (6). The limiting pressing plate (6) is connected to the housing (1), and the limiting pressing plate (6) is arranged on the same side as the limiting member (5). The limiting pressing plate (6) is used to limit the limiting member (5) or the mounting bearing (4) on the housing (1).

5. The sewing machine mounting housing according to claim 4, wherein the limiting pressing plate (6) is coaxially arranged with the mounting bearing (4). The inner diameter of the limiting pressing plate (6) is D5, and the outer diameter is D6, where D5 < D3 < D6, and the limiting pressing plate (6) is in contact with the limiting member (5); or, D5 < D1 < D6, and the limiting pressing plate (6) is in contact with the mounting bearing (4).

6. The sewing machine mounting housing according to claim 4, wherein it further includes a first connecting member (13). The limiting member (5) is connected to the housing (1) through the first connecting member (13); there is a first connecting hole arranged axially on the limiting member (5), and there is a first matching hole corresponding to the first connecting hole on the housing (1). At least part of the first connecting member (13) is located in the first connecting hole, and at least part is located in the first matching hole.

7. The sewing machine mounting housing according to claim 4, wherein it further includes a second connecting member. The limiting pressing plate (6) is connected to the housing (1) through the second connecting member; there is a second connecting hole arranged axially on the limiting pressing plate (6), and there is a second matching hole corresponding to the second connecting hole on the housing (1). At least part of the second connecting member is located in the second connecting hole, and at least part is located in the second matching hole.

8. The sewing machine mounting housing according to claim 1, wherein: It also includes a shaft sleeve (10), the shaft sleeve (10) is sleeved on the connecting shaft, and the outer wall of the shaft sleeve (10) is in contact with the inner wall of the mounting bearing (4); Wherein, a limiting ring (14) is provided at the end of the shaft sleeve (10) away from the limiting member (5), and the outer diameter of the limiting ring (14) is larger than the inner diameter of the mounting bearing (4).

9. The sewing machine mounting housing according to claim 1, wherein: It also includes a driving motor (7), the connecting shaft is divided into an upper shaft (2) and a lower shaft (3), the upper shaft (2) and the lower shaft (3) are spaced apart, and the driving motor (7) is connected to the upper shaft (2); The upper shaft (2) is provided with a driving gear (8), the lower shaft (3) is provided with a driven gear (9), and the driving gear (8) and the driven gear (9) are connected via a synchronous belt (15).

10. The sewing machine mounting housing according to claim 1, wherein: At least two mounting plates (11) are provided in the housing (1), the two mounting plates (11) are spaced apart in the axial direction, and the mounting holes are provided on the mounting plates (11).

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