An auxiliary stabilizing device for a lockstitch sewing machine
The combination of a plumb bob and a limiting screw automatically keeps the hexagonal insert vertical, solving the problem of repeated leveling adjustments required in existing technologies and enabling convenient use of the auxiliary stabilizing device for flat sewing machines.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LUAN ZHONGHONG CLOTHING CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-08-04
AI Technical Summary
The existing auxiliary stabilizing device for flat sewing machines requires repeated use of a level and multiple angle adjustments when adjusting to a horizontal state, which is inconvenient to use.
The structure employs a combination of a plumb bob, a movable ball, a limiting screw, and a base plate, which allows the hexagonal insert to automatically maintain a vertical position. The limiting screw secures the base beam and sewing platform, ensuring they remain level.
The sewing platform can be kept level without repeated adjustments, making it more convenient and faster to use.
Smart Images

Figure CN224591179U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of flat sewing machines, specifically an auxiliary stabilizing device for flat sewing machines. Background Technology
[0002] A flatbed sewing machine is a machine that uses a single sewing thread to create a stitch on the fabric, allowing one or more layers of fabric to interweave or sew together. Flatbed sewing machines are the most basic type of sewing equipment. They produce the simplest stitches, resulting in neat, beautiful, even, flat, and strong stitches. They are also fast, easy to operate, and simple to understand.
[0003] Current auxiliary stabilizing devices for flat sewing machines, as described in patent CN222083068U, include a processing table. A processing component is fixedly installed on the top of the processing table. Sliding grooves are provided on all four outer walls of the processing table. A stabilizing device is movably installed inside the sliding grooves. An angle adjustment device is fixedly installed at the bottom of the stabilizing device. The processing table has inclined grooves and telescopic grooves inside. It can use two telescopic motors to assist in stabilizing the entire worktable. Furthermore, the bottom of the device can be angled, allowing the anti-slip pad to fit more flatly against the contact surface, maximizing the contact surface area to increase friction, thereby improving the overall stability of the device.
[0004] Regarding the aforementioned technologies, the inventors believe that the processing table, through multi-angle adjustment of the two anti-slip bases, can be fixed on different surfaces, thus meeting the requirement of overall stability and applicability to various terrains. However, during use, the processing table needs to be adjusted to a level position. At this time, the worker needs to use a level to repeatedly adjust the two anti-slip bases at multiple angles, which makes the use of the entire flat sewing machine auxiliary stabilization device quite inconvenient. Utility Model Content
[0005] The purpose of this invention is to provide an auxiliary stabilizing device for a flat sewing machine to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A flat sewing machine auxiliary stabilizing device, comprising
[0008] A support mechanism, comprising a sewing platform, wherein uprights are symmetrically and fixedly connected to the bottom of the sewing platform, and bottom beams are fixedly connected to the bottom of both sets of uprights, and bottom plates are detachably connected to the bottom of both sets of bottom beams.
[0009] The adjustment mechanism includes an insertion tube fixedly connected to the middle position of the bottom of the base plate. A hexagonal post is inserted into the inside of the insertion tube. A movable ball is fixedly connected to the bottom of the hexagonal post. A plumb bob is fixedly connected to the bottom of the movable ball. A support plate is movably connected to the outside of the movable ball. Support columns are fixedly connected to the four corners of the bottom of the support plate. A limit screw is threaded to one side of the inside of the support plate. The limit screw abuts against the movable ball.
[0010] As a further embodiment of this utility model: the top of the base plate is symmetrically provided with limiting grooves, and the two sets of bottom beams are respectively inserted into the two sets of limiting grooves.
[0011] As a further embodiment of this utility model: guide rods are symmetrically fixedly connected to both sides of the base plate, and hook blocks are slidably connected inside the two sets of guide rods. A spring is fixedly connected between the hook block and the base plate. A through-hole corresponding to the hook block is symmetrically opened inside the base beam, and the hook block passes through the through-hole.
[0012] As a further embodiment of this utility model: the base plate is internally threaded with a connecting bolt, and the connecting bolt is threadedly connected to the hexagonal insert.
[0013] As a further embodiment of this utility model: the bottom four corners of the base plate are all threaded with fixing bolts, and the outer side of each group of fixing bolts is threaded with an internal threaded tube, and each group of internal threaded tubes abuts against the support plate.
[0014] As a further embodiment of this utility model, each group of internally threaded tubes is fixedly connected to a nut on its outer side.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] With the above-described structure, this invention utilizes the cooperation of the plumb bob, the movable ball, the limiting screw, and the base plate. Under the weight of the plumb bob, the movable ball and the hexagonal insert can move, allowing the hexagonal insert to automatically move to a vertical position. When the limiting screw is tightened to abut against the movable ball, it restricts the movement of the movable ball, ensuring the hexagonal insert remains vertical. This keeps the base plate, fixed to the top of the insert tube after it is inserted into the outside of the hexagonal insert, horizontal, thus keeping the base beam and sewing platform horizontal as well. This eliminates the need for repeated adjustments to keep the sewing platform horizontal, making the entire auxiliary stabilizing device more convenient and quick to use. Attached Figure Description
[0017] The present invention will be further described in detail below with reference to the embodiments shown in the accompanying drawings, but this does not constitute any limitation on the present invention.
[0018] Figure 1 This is a schematic diagram of an auxiliary stabilizing device for a flat sewing machine.
[0019] Figure 2 A type of auxiliary stabilizing device for a flat sewing machine Figure 1 A schematic diagram of the structure of part A.
[0020] Figure 3 This is a structural schematic diagram of an auxiliary stabilizing device for a flat sewing machine from another perspective.
[0021] Figure 4 A type of auxiliary stabilizing device for a flat sewing machine Figure 3 A schematic diagram of the structure of part B.
[0022] In the diagram: 1. Support mechanism; 101. Sewing platform; 102. Column; 103. Bottom beam; 104. Base plate; 105. Through-hole; 106. Hook block; 107. Limiting groove; 108. Guide rod; 109. Spring; 2. Adjustment mechanism; 201. Insert tube; 202. Support plate; 203. Hexagonal insert; 204. Movable ball; 205. Plumb bob; 206. Limiting screw; 207. Fixing bolt; 208. Internally threaded tube; 209. Nut; 210. Support column; 211. Connecting bolt. Detailed Implementation
[0023] The technical solution of this patent will be further described in detail below with reference to specific embodiments.
[0024] Please see Figure 1-4 A stabilizing device for a flatbed sewing machine includes a support mechanism 1. The support mechanism 1 includes a sewing platform 101, which supports the main body of the flatbed sewing machine and provides a platform for the worker to operate the machine. Uprights 102 are symmetrically fixedly connected to the bottom of the sewing platform 101. Bottom beams 103 are fixedly connected to the bottom of each set of uprights 102. The uprights 102 and bottom beams 103 provide support for the sewing platform 101. A base plate 104 is detachably connected to the bottom of each set of bottom beams 103, providing support for the bottom beams 103.
[0025] The top of the base plate 104 has symmetrically formed limiting grooves 107. Two sets of bottom beams 103 are respectively inserted into the two sets of limiting grooves 107. The limiting grooves 107 are designed to allow the bottom beams 103 to be inserted and limited. Guide rods 108 are symmetrically fixedly connected to both sides of the base plate 104. Hook blocks 106 are slidably connected inside each set of guide rods 108. The guide rods 108 are designed to guide the sliding of the hook blocks 106. A spring 109 is fixedly connected between the hook block 106 and the base plate 104. The spring 109 is designed to use its elasticity to pull the hook block 106 to move.
[0026] The bottom beam 103 has symmetrical through-holes 105 corresponding to the hook blocks 106 inside. The hook blocks 106 pass through the through-holes 105. The through-holes 105 are designed for the hook blocks 106 to pass through, so that the hook blocks 106 can hook the bottom beam 103 after passing through the through-holes 105, thereby limiting the bottom beam 103. The adjustment mechanism 2 includes an insert tube 201 fixedly connected to the middle position of the bottom of the base plate 104. A hexagonal insert post 203 is inserted into the insert tube 201. A connecting bolt 211 is threadedly connected to the bottom plate 104. The connecting bolt 211 is threadedly connected to the hexagonal insert post 203. The connecting bolt 211 is designed to connect and fix the hexagonal insert post 203 to the base plate 104.
[0027] A movable ball 204 is fixedly connected to the bottom of the hexagonal insert 203. A plumb bob 205 is fixedly connected to the bottom of the movable ball 204. A support plate 202 is movably connected to the outside of the movable ball 204. The plumb bob 205 is designed to use its own gravity to pull the movable ball 204 to move inside the support plate 202, thereby keeping the hexagonal insert 203 in a vertical position. Each of the four corners of the bottom of the base plate 104 is threaded with a fixing bolt 207. Each set of fixing bolts 207 is threaded with an internally threaded tube 208 on its outside. Each set of internally threaded tubes 208 abuts against the support plate 202. The internally threaded tubes 208 provide auxiliary support to the base plate 104 when it rotates to abut against the support plate 202.
[0028] Each set of internally threaded tubes 208 is fixedly connected to the outside of a nut 209, which facilitates the rotation and adjustment of the internally threaded tubes 208. Support columns 210 are fixedly connected to the four corners of the bottom of the support plate 202, which support the support plate 202. A limiting screw 206 is threadedly connected to one side of the inside of the support plate 202. The limiting screw 206 abuts against the movable ball 204, and its placement restricts the movement of the movable ball 204 when it is screwed to abut against it.
[0029] In use, place each set of support columns 210 on the ground at the desired location for the sewing machine. Then, loosen the limiting screw 206, allowing the plumb ball 205 to pull the movable ball 204 within the support plate 202 under gravity until the movable ball 204 stops moving. At this point, the hexagonal insert 203 remains vertical. Next, rotate the limiting screw 206 until it abuts against the movable ball 204, thus restricting its movement. Then, tighten each set of internal threaded tubes 208, causing them to move downwards until they contact the top of the support plate 202. Finally, remove the connecting screw. Bolt 211 fixes the base plate 104 to the hexagonal insert 203. Then, the two sets of bottom beams 103 are placed inside the two sets of limiting grooves 107, so that each set of hook blocks 106 passes through each set of through holes 105. Under the elastic action of each set of springs 109, the hook blocks 106 are pulled to one side, so that the hook blocks 106 hook the bottom beam 103, thereby fixing the bottom beam 103. Since the hexagonal insert 203 is in a vertical state, the insertion tube 201 inserted into the outside of the hexagonal insert 203 is also in a vertical state. The base plate 104, bottom beam 103 and sewing platform 101 fixed on the top of the insertion tube 201 are also kept in a horizontal state.
[0030] The above-described embodiments are preferred embodiments of the present utility model and are only used to facilitate the illustration of the present utility model. They are not intended to limit the present utility model in any way. Any person skilled in the art who makes partial modifications or alterations to the technical content disclosed in the present utility model without departing from the scope of the technical features of the present utility model shall still fall within the scope of the technical features of the present utility model.
Claims
1. A stabilizing device for a flat sewing machine, characterized in that, include Support mechanism (1), the support mechanism (1) includes a sewing platform (101), the bottom of the sewing platform (101) is symmetrically fixedly connected with columns (102), the bottom of the two sets of columns (102) is fixedly connected with bottom beams (103), and the bottom of the two sets of bottom beams (103) is detachably connected with bottom plates (104). Adjustment mechanism (2), the adjustment mechanism (2) includes a tube (201) fixedly connected to the middle position of the bottom of the base plate (104), a hexagonal post (203) is inserted into the inside of the tube (201), a movable ball (204) is fixedly connected to the bottom of the hexagonal post (203), a plumb ball (205) is fixedly connected to the bottom of the movable ball (204), a support plate (202) is movably connected to the outside of the movable ball (204), a support column (210) is fixedly connected to the four corners of the bottom of the support plate (202), a limit screw (206) is threadedly connected to one side of the inside of the support plate (202), and the limit screw (206) abuts against the movable ball (204).
2. The auxiliary stabilizing device for a flat sewing machine according to claim 1, characterized in that, The top of the base plate (104) is symmetrically provided with limiting grooves (107), and the two sets of bottom beams (103) are respectively inserted into the two sets of limiting grooves (107).
3. The auxiliary stabilizing device for a lockstitch machine according to claim 2, wherein Guide rods (108) are symmetrically fixedly connected to both sides of the base plate (104). Hook blocks (106) are slidably connected inside both sets of guide rods (108). A spring (109) is fixedly connected between the hook block (106) and the base plate (104). The bottom beam (103) has symmetrical through holes (105) corresponding to the hook blocks (106) inside. The hook blocks (106) pass through the through holes (105).
4. The auxiliary stabilizing device for a lockstitch machine according to claim 1, wherein The base plate (104) is internally threaded with a connecting bolt (211), which is threadedly connected to the hexagonal insert (203).
5. The device according to claim 1, wherein The bottom of the base plate (104) is threaded with fixing bolts (207) at the four corners. Each group of fixing bolts (207) is threaded with an internal threaded tube (208) on the outside. Each group of internal threaded tubes (208) abuts against the support plate (202).
6. A device for assisting the stability of a lockstitch sewing machine according to claim 5, characterized in that Each of the internally threaded tubes (208) in each group is fixedly connected to a nut (209) on its outer side.