Quick-release type sewing machine presser bar

Abstract

This utility model relates to the field of sewing machines, specifically a quick-release sewing machine pressure bar. It includes a sewing machine housing, a side plate on one side of the housing, a pressure bar body inside the housing, a connecting plate fixedly connected to one end of the pressure bar body, and a mounting mechanism including a worm gear on the surface of the pressure bar body. This utility model allows for disassembly of the pressure bar body by pressing a wedge block, which pushes an insert block out of the slot. Then, rotating the pressure bar body causes the worm gear to disengage from the worm wheel, and the second fixing block to move out of the bottom of the slider through the hollow groove. This allows for easy and convenient removal of the pressure bar body from the sewing machine housing for disassembly and maintenance, increasing the ease of removal and efficiency of maintenance.

Description

Technical Field

[0001] This utility model relates to the field of sewing machines, specifically a quick-release sewing machine pressure bar. Background Technology

[0002] The presser bar is an important component of a sewing machine. It's a key rod-shaped structure used to control the sewing process and is typically located at the bottom of the machine. It adjusts sewing parameters by moving up and down and rotating, ensuring precision and stability in the sewing process. The main function of the presser bar is to adjust the pressure of the presser foot on the fabric. By operating the presser bar, the user can control the friction between the presser foot and the fabric, allowing the fabric to move smoothly during sewing.

[0003] In existing technology, sewing machine presser bars are typically used to press garments firmly, ensuring that the garment moves stably during sewing and preventing slippage or tilting due to excessive wobbling. However, most presser bars require surface maintenance after prolonged use. Currently, removing the presser bar often requires disassembling the sewing machine's side panel and then loosening the presser foot guide with a screwdriver. This process of first removing the side panel and then loosening the presser foot guide not only makes removing and disassembling the presser bar cumbersome and inefficient but also reduces the efficiency of maintenance and upkeep. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, removing the presser bar often requires disassembling the side panel of the sewing machine and then loosening the presser foot guide with a screwdriver. This process of removing the side panel and then loosening the presser foot guide not only makes the removal and disassembly of the presser bar cumbersome and complicated, but also reduces the efficiency of maintenance and upkeep. This invention proposes a quick-release sewing machine presser bar.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a quick-release sewing machine pressure bar, including a sewing machine housing, a side plate provided on one side of the sewing machine housing, a pressure bar body provided in the inner cavity of the sewing machine housing, a connecting plate fixedly connected to one end of the pressure bar body, and an installation mechanism provided on the surface of the pressure bar body; The mounting mechanism includes a worm gear, with the inner cavity of the worm gear fixedly connected to the surface of the pressure rod body. An mounting block is fixedly connected to the inner cavity of the sewing machine housing, and a fixing rod is fixedly connected to the surface of the mounting block. A worm wheel is fixedly connected to the surface of the fixing rod, and the surface of the worm wheel meshes with the surface of the worm gear. A first fixing block is fixedly connected to the top of the sewing machine housing, and an insert block is slidably connected to the inner cavity of the first fixing block. Multiple slots are provided on the surface of the pressure rod body, and the surface of the insert block movably engages with the inner cavity of one of the slots. A removal assembly is provided on the top of the sewing machine housing.

[0006] Preferably, the extraction assembly includes a first spring, one end of which is fixedly connected to one side of a first fixing block, and a wedge block is fixedly connected to one end of the first spring, the surface of which is slidably connected to the inner cavity of the insertion block.

[0007] Preferably, a second spring is fixedly connected to one side of the first fixing block, and a sliding plate is fixedly connected to one end of the second spring. The top of the sliding plate is fixedly connected to the bottom of the insertion block.

[0008] Preferably, a limiting rod is fixedly connected to the surface of the first fixing block, the inner cavity of the sliding plate is slidably connected to the surface of the limiting rod, a sliding rod is fixedly connected to the inner cavity of the wedge block, the surface of the sliding rod is slidably connected to the inner cavity of the first fixing block, and a pressure block is fixedly connected to one end of the sliding rod.

[0009] Preferably, a limiting plate is fixedly connected to one side of the first fixing block, and the surface of the limiting plate is slidably connected to the inner cavity of the sliding plate.

[0010] Preferably, a slider is slidably connected to the inner cavity of the sewing machine housing, a third spring is fixedly connected to the top of the slider, and a fixing ring block is fixedly connected to the surface of the pressure rod body.

[0011] Preferably, a hollow groove is provided on one side of the slider, and a second fixing block is fixedly connected to the surface of the pressure rod body, the size of the second fixing block being adapted to the size of the hollow groove.

[0012] The advantages of this utility model are: This invention allows for the disassembly of the pressure rod body by pressing a wedge block, which pushes the insert block out of the slot. Then, rotating the pressure rod body causes the worm gear to disengage from the worm wheel, and the second fixing block to move out of the bottom of the slider through the hollow groove. This enables the pressure rod body to be easily and conveniently removed from the sewing machine housing for disassembly and maintenance, increasing the ease of removal and efficiency of maintenance. It solves the problem that existing methods often require removing the sewing machine's side panel and then loosening the presser foot guide with a screwdriver, making removal cumbersome and inefficient, and reducing maintenance efficiency. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the internal structure of the sewing machine housing of this utility model; Figure 3 This is a cross-sectional structural diagram of the pressure bar body and the insert block of this utility model; Figure 4 This is a cross-sectional view of the mounting block and fixing rod of this utility model; Figure 5 This is a schematic diagram of the slide bar and limiting bar of this utility model; Figure 6 This utility model Figure 5 A magnified structural diagram of point A in the middle.

[0015] In the diagram: 1. Sewing machine housing; 2. Side plate; 3. Pressure bar body; 4. Connecting plate; 5. Mounting mechanism; 501. Worm gear; 502. Mounting block; 503. Fixing rod; 504. Worm wheel; 505. First fixing block; 506. Insert block; 507. Slot; 508. Removal assembly; 5081. Wedge block; 5082. First spring; 6. Slide bar; 7. Pressure block; 8. Limiting rod; 9. Slide plate; 10. Second spring; 11. Limiting plate; 12. Fixing ring block; 13. Third spring; 14. Slider; 15. Hollow groove; 16. Second fixing block. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0017] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail. This application discloses a quick-release sewing machine pressure bar. (See also...) Figure 1 and Figure 2 A quick-release sewing machine pressure bar includes a sewing machine housing 1, a side plate 2 on one side of the sewing machine housing 1, a pressure bar body 3 in the inner cavity of the sewing machine housing 1, a connecting plate 4 fixedly connected to one end of the pressure bar body 3, and an installation mechanism 5 on the surface of the pressure bar body 3. The mounting mechanism 5 includes a worm gear 501, with the inner cavity of the worm gear 501 fixedly connected to the surface of the pressure rod body 3. An mounting block 502 is fixedly connected to the inner cavity of the sewing machine housing 1. A fixing rod 503 is fixedly connected to the surface of the mounting block 502. A worm wheel 504 is fixedly connected to the surface of the fixing rod 503. The surface of the worm wheel 504 meshes with the surface of the worm gear 501. A first fixing block 505 is fixedly connected to the top of the sewing machine housing 1. An insert block 506 is slidably connected to the inner cavity of the first fixing block 505. A slot 507 is provided on the surface of the pressure rod body 3. Multiple slots 507 are provided. The surface of the insert block 506 is movably engaged with the inner cavity of one of the slots 507. A take-out component 508 is provided on the top of the sewing machine housing 1.

[0018] The sewing machine housing 1 connects the side plate 2 and the presser bar body 3. The connecting plate 4 installed at the bottom of the presser bar body 3 is mainly used to connect the foot to the presser bar body 3, so that the foot can smoothly press the garment. The sewing machine housing 1 can install and fix the fixing rod 503 through the mounting block 502. The worm wheel 504 fixed on the surface of the fixing rod 503 meshes with the worm 501 installed on the surface of the presser bar body 3, and the worm wheel 504 is fixed. This allows the presser bar body 3 to move up and down smoothly through the meshing of the worm 501 and the worm wheel 504 when it is rotated. The sewing machine housing 1 can also connect the insertion block 506 through the first fixing block 505. After the insertion block 506 is inserted into the slot 507, it can restrict the presser bar body 3 to a certain extent, further improving the stability of the worm 501 when it meshes with the worm wheel 504, and making it less likely to rotate when it does not need to rotate.

[0019] Reference Figure 3 and Figure 5 The component 508 includes a first spring 5082, one end of which is fixedly connected to one side of a first fixing block 505. A wedge block 5081 is fixedly connected to one end of the first spring 5082. The surface of the wedge block 5081 is slidably connected to the inner cavity of the insert block 506. The first fixing block 505 can connect the wedge block 5081 through the first spring 5082. The wedge block 5081 slides against the interior of the insert block 506, so that when the wedge block 5081 is pushed, it can push the insert block 506, thereby moving the insert block 506 out of the slot 507. This removes the restriction on the pressure rod body 3, allowing the pressure rod body 3 to be rotated when needed.

[0020] Reference Figure 3 and Figure 6 A second spring 10 is fixedly connected to one side of the first fixing block 505, and a slide plate 9 is fixedly connected to one end of the second spring 10. The top of the slide plate 9 is fixedly connected to the bottom of the insert block 506. The first fixing block 505 can connect the slide plate 9 through the second spring 10. The connection between the slide plate 9 and the insert block 506 allows the insert block 506 to automatically reset due to the elasticity of the second spring 10 after being pushed by the wedge block 5081.

[0021] Reference Figure 3 and Figure 6 A limiting rod 8 is fixedly connected to the surface of the first fixed block 505. The inner cavity of the slide plate 9 is slidably connected to the surface of the limiting rod 8. A sliding rod 6 is fixedly connected to the inner cavity of the wedge block 5081. The surface of the sliding rod 6 is slidably connected to the inner cavity of the first fixed block 505. A pressure block 7 is fixedly connected to one end of the sliding rod 6. The limiting rod 8 can limit the extension and retraction of the second spring 10 and the sliding of the slide plate 9, so that the slide plate 9 can be stable enough when moving. The second spring 10 is not easy to deform when it extends and retracts. At the same time, the setting of the sliding rod 6 and the pressure block 7 makes it easy for people to push the wedge block 5081. And through the sliding connection between the sliding rod 6 and the first fixed block 505, the extension and retraction of the first spring 5082 is also limited, increasing its stability when extending and retracting.

[0022] Reference Figure 3 and Figure 6 A limiting plate 11 is fixedly connected to one side of the first fixing block 505. The surface of the limiting plate 11 is slidably connected to the inner cavity of the slide plate 9. The limiting plate 11 can further restrict the sliding of the slide plate 9, further improve the stability of the slide plate 9 when sliding, and make it less likely to shake or deviate when moving, thereby increasing the stability of the slide plate 9 when moving.

[0023] Reference Figure 2 and Figure 6A slider 14 is slidably connected to the inner cavity of the sewing machine housing 1. A third spring 13 is fixedly connected to the top of the slider 14. A fixing ring block 12 is fixedly connected to the surface of the pressure rod body 3. A hollow groove 15 is opened on one side of the slider 14. A second fixing block 16 is fixedly connected to the surface of the pressure rod body 3. The size of the second fixing block 16 is adapted to the size of the hollow groove 15. The sewing machine housing 1 can use the slider 14 to install and connect the third spring 13. At the same time, the adaptation of the hollow groove 15 and the second fixing block 16 allows the second fixing block 16 to slide out from the inside of the hollow groove 15 when the pressure rod body 3 needs to be disassembled, thus preventing damage. The disassembly and installation of the pressure rod body 3 are affected. When the pressure rod body 3 rotates, it can move downward through the meshing of the worm gear 501 and the worm wheel 504. During the movement, the fixed ring block 12 installed on the surface of the pressure rod body 3 compresses the third spring 13, and the slider 14 compresses the second fixed block 16 and the pressure rod body 3, so that the pressure rod body 3 will be subjected to a certain downward pressure, thereby enhancing the stability of the pressure rod body 3 during use. At the same time, the sewing machine housing 1, the pressure rod body 3, and the third spring 13 are important parts of the sewing machine body, and the sewing machine is existing technology in this field, so it will not be described in detail here.

[0024] Working principle: When using this device, the operator can push the wedge block 5081 to squeeze the insert block 506, causing the insert block 506 to move away from the pressure rod body 3. After moving to the desired distance, the restriction on the pressure rod body 3 can be lifted. Then, the operator can rotate the pressure rod body 3. Through the meshing of the worm gear 501 and the worm wheel 504, the pressure rod body 3 moves upward. During the upward movement of the pressure rod body 3, the second fixing block 16 only needs to move into the hollow groove 15 to move upward smoothly. Because the slider 14 is slidably connected to the sewing machine housing 1, the upward movement of the pressure rod body 3 with the second fixing block 16 does not easily affect the normal upward movement of the pressure rod body 3. When the worm gear 501 moves to a certain distance, it will no longer mesh with the worm wheel 504, at which point the pressure rod body 3 can be removed.

[0025] When it is necessary to install the pressure bar body 3, simply press the wedge block 5081 to move the insert block 506, then insert the pressure bar body 3 into the sewing machine housing 1, and pass the second fixing block 16 through the hollow groove 15 until the worm 501 contacts the worm wheel 504. Then rotate the pressure bar body 3 so that the pressure bar body 3 moves downward through the meshing of the worm 501 and the worm wheel 504.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A quick-release sewing machine press bar, comprising a sewing machine housing (1), characterized in that: A side plate (2) is provided on one side of the sewing machine housing (1), a pressure rod body (3) is provided in the inner cavity of the sewing machine housing (1), a connecting plate (4) is fixedly connected to one end of the pressure rod body (3), and an installation mechanism (5) is provided on the surface of the pressure rod body (3). The installation mechanism (5) includes a worm (501), the inner cavity of the worm (501) is fixedly connected to the surface of the pressure rod body (3), the inner cavity of the sewing machine housing (1) is fixedly connected to an installation block (502), the surface of the installation block (502) is fixedly connected to a fixing rod (503), the surface of the fixing rod (503) is fixedly connected to a worm wheel (504), the surface of the worm wheel (504) meshes with the surface of the worm (501), the top of the sewing machine housing (1) is fixedly connected to a first fixing block (505), the inner cavity of the first fixing block (505) is slidably connected to an insert block (506), the surface of the pressure rod body (3) is provided with a slot (507), multiple slots (507) are provided, the surface of the insert block (506) is movably engaged with the inner cavity of one of the slots (507), and the top of the sewing machine housing (1) is provided with a take-out component (508).

2. The quick-release sewing machine press bar according to claim 1, characterized in that: The extraction component (508) includes a first spring (5082), one end of which is fixedly connected to one side of a first fixing block (505), and a wedge block (5081) is fixedly connected to one end of the first spring (5082). The surface of the wedge block (5081) is slidably connected to the inner cavity of the insertion block (506).

3. A quick-release sewing machine press bar according to claim 2, characterized in that: A second spring (10) is fixedly connected to one side of the first fixing block (505), and a slide plate (9) is fixedly connected to one end of the second spring (10). The top of the slide plate (9) is fixedly connected to the bottom of the insert block (506).

4. A quick-release sewing machine press bar according to claim 3, characterized in that: A limiting rod (8) is fixedly connected to the surface of the first fixing block (505), the inner cavity of the slide plate (9) is slidably connected to the surface of the limiting rod (8), the inner cavity of the wedge block (5081) is fixedly connected to a sliding rod (6), the surface of the sliding rod (6) is slidably connected to the inner cavity of the first fixing block (505), and a pressure block (7) is fixedly connected to one end of the sliding rod (6).

5. A quick-release sewing machine press bar according to claim 4, characterized in that: A limiting plate (11) is fixedly connected to one side of the first fixing block (505), and the surface of the limiting plate (11) is slidably connected to the inner cavity of the slide plate (9).

6. A quick-release sewing machine press bar according to claim 3, characterized in that: The inner cavity of the sewing machine housing (1) is slidably connected to a slider (14), the top of the slider (14) is fixedly connected to a third spring (13), and the surface of the pressure rod body (3) is fixedly connected to a fixing ring block (12).

7. A quick-release sewing machine press bar according to claim 6, characterized in that: A hollow groove (15) is provided on one side of the slider (14), and a second fixing block (16) is fixedly connected to the surface of the pressure rod body (3). The size of the second fixing block (16) is adapted to the size of the hollow groove (15).

Images