CN220079394U - Sewing machine convenient to change syringe needle - Google Patents

Abstract

The utility model relates to the technical field of sewing machines, in particular to a sewing machine convenient for replacing a needle head. According to the needle head body, when a new needle head body is installed through the rack, the needle head body is slid into the connecting plate, the connecting block is pressed at the moment to clamp and fix the needle head body, when the needle head body does not fall in a handheld state, the rotating plate is rotated at the moment to enable the clamping block to be clamped with the limiting groove to fix the connecting block, at the moment, the needle head body is installed, the needle head body is convenient to replace without special tools, special tools do not need to be placed at specially prepared positions, and meanwhile the problem that the special tools are lost to influence the replacement of the needle head of the sewing machine is avoided.

Description

Sewing machine convenient to change syringe needle

Technical Field

The utility model relates to the technical field of sewing machines, in particular to a sewing machine with a needle convenient to replace.

Background

The sewing machine is a machine which uses one or more sewing threads to form one or more stitch on the stitch, so that one or more layers of stitch are interwoven or sewn together, the needle head replacing process of the sewing machine is to twist the rotating screw through a special tool to enable the clamping and fixing of the screw to the needle to be released, the needle is slid into the connecting plate during installation, then the special tool is used for twisting the rotating screw to enable the screw to clamp and fix the needle, but the special tool needs to be placed in a place where a user is ready, meanwhile, the special tool is easy to lose due to small size, and if the tool is lost, the replacement of the needle head of the sewing machine can be affected.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model provides a sewing machine which is convenient for replacing a needle head.

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a sewing machine convenient to change syringe needle, which comprises a sewing machine body, the outside fixed mounting of sewing machine body has the connecting plate, the inside sliding connection of connecting plate has the syringe needle body, logical groove has been seted up to the outside of connecting plate, logical inslot fixed mounting has the connecting pipe, the one end that the connecting pipe is close to the connecting plate is provided with slewing mechanism, slewing mechanism is including the pivot, the gear, the revolving plate and inject the groove, the inside at the connecting pipe is connected in the pivot rotation, gear fixed mounting is in the outside of pivot fixed mounting, revolving plate fixed mounting runs through the outside of connecting pipe to inject the groove and sets up the outside at the connecting pipe, the inside sliding connection of connecting pipe has the connecting block, the outside of connecting block is provided with slide mechanism, slide mechanism is including the standing groove, rack, fixture block and spout, the outside at the rack is seted up to the connecting groove near the connecting block, fixture block sliding connection is in the inside at the spout, the fixture block joint is in the inside of inject the groove, the one side that the setting groove is close to the setting up the groove, the one side of rack is close to the inside fixed mounting of limiting block, the inside block sliding connection is in the inside of limiting groove is fixed axle one side of limiting block, the inside joint circular connection has the fixed axle is kept away from the inside the circular groove of the connecting block.

As a preferable technical scheme of the utility model, one side of the pulling plate, which is close to the fixed shaft, is fixedly connected with a spring, and one end of the spring, which is far away from the pulling plate, is fixedly connected with the outside of the rotating plate.

As a preferable technical scheme of the utility model, the limit groove, the rack, the clamping block and the sliding groove are two.

Compared with the prior art, the utility model has the following beneficial effects:

1. through setting up at the inside rack of standing groove, the cooperation limiting groove, when dismantling the syringe needle body, it drives the pivot to rotate the swivel plate, the pivot drives the gear rotation, gear and rack meshing drive rack remove, rack drive fixture block moves to the inside joint of standing groove messenger fixture block and limiting groove, when the swivel plate of this moment becomes the vertical state with original state of swivel plate, the connection of fixture block and spout breaks away from the inside that gets into the standing groove, the connection piece makes the connecting block remove the fixed of syringe needle body outward at this moment, the syringe needle body can take out from the connecting plate inside at this moment, when installing new syringe needle body, slide the syringe needle body into the connecting plate inside, press the connecting block at this moment and make the connecting block fix the syringe needle body centre gripping, when the syringe needle body does not drop under handheld state at this moment, the swivel plate makes fixture block and limiting groove carry out the joint and is fixed, this moment the syringe needle body is installed, be convenient for change the syringe needle body under no special instrument, place special instrument is placed to special instrument need not to special tool to special the position specially and avoid losing the change that influences sewing machine syringe needle.

2. Through setting up at the outside circular slot of connecting pipe, the cooperation fixed axle, when needs rotate the commentaries on classics board, upwards pulling arm-tie drives the joint that the fixed axle made fixed axle and circular slot and releases, can rotate the commentaries on classics board this moment, when the inside in circular slot is loved to the fixture block joint, presses the arm-tie and makes the fixed axle joint fixed with the commentaries on classics board in the inside in circular slot, avoids the user to rotate the commentaries on classics board unintentionally and leads to the syringe needle to rock.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the needle body of FIG. 1 according to the present utility model;

FIG. 3 is a schematic view of the structure of the connecting plate in FIG. 2 according to the present utility model;

FIG. 4 is a schematic view of the structure of the spindle of FIG. 3 according to the present utility model;

fig. 5 is a schematic structural view of the connection block of fig. 3 according to the present utility model.

Wherein: 1. a sewing machine body; 2. a connecting plate; 3. a needle body; 4. a through groove; 5. a connecting pipe; 6. a rotating shaft; 7. a gear; 8. a rotating plate; 9. defining a slot; 10. a connecting block; 11. a placement groove; 12. a rack; 13. a clamping block; 14. a chute; 15. a built-in groove; 16. defining a block; 17. a circular groove; 18. a fixed shaft; 19. pulling a plate; 20. and (3) a spring.

Detailed Description

In order that the manner in which the above recited features, objects and advantages of the present utility model are obtained will become readily apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. Based on the examples in the embodiments, those skilled in the art can obtain other examples without making any inventive effort, which fall within the scope of the utility model. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents, etc. used in the following examples are commercially available unless otherwise specified.

Examples:

as shown in fig. 1, 2, 3, 4 and 5, a sewing machine convenient for replacing needle head comprises a sewing machine body 1, wherein a connecting plate 2 is fixedly arranged outside the sewing machine body 1, the needle head body 3 is slidingly connected inside the connecting plate 2, a through groove 4 is arranged outside the connecting plate 2, a connecting pipe 5 is fixedly arranged inside the through groove 4, one end of the connecting pipe 5, which is close to the connecting plate 2, is provided with a rotating mechanism, which comprises a rotating shaft 6, a gear 7, a rotating plate 8 and a limiting groove 9, the rotating shaft 6 is rotationally connected inside the connecting pipe 5, the gear 7 is fixedly arranged outside the rotating shaft 6, the rotating plate 8 is fixedly arranged outside the rotating shaft 6 and penetrates through the connecting pipe 5 to the connecting pipe 5, the limiting groove 9 is arranged outside the connecting pipe 5, a connecting block 10 is slidingly connected inside the connecting pipe 5, the outer part of the connecting block 10 is provided with a sliding mechanism, the sliding mechanism comprises a placing groove 11, a rack 12, a clamping block 13 and a sliding groove 14, wherein the rack 12 is arranged in the placing groove 11, the sliding mechanism is matched with the limiting groove 9, when the needle body 3 is dismounted, the rotating plate 8 drives the rotating shaft 6 to rotate, the rotating shaft 6 drives the gear 7 to rotate, the gear 7 is meshed with the rack 12 to drive the rack 12 to move, the rack 12 drives the clamping block 13 to move towards the placing groove 11 to enable the clamping block 13 to be released from the limiting groove 9, when the rotating plate 8 is in a vertical state with the original rotating plate 8, the clamping block 13 is connected with the sliding groove 14 and is separated from the placing groove 11, the connecting block 10 is pulled outwards to enable the connecting block 10 to be released from fixing the needle body 3, the needle body 3 can be taken out from the connecting plate 2, when a new needle body 3 is mounted, the needle body 3 is slid into the connecting plate 2, at this time, the connecting block 10 is pressed to enable the connecting block 10 to clamp and fix the needle body 3, when the needle body 3 does not fall under the condition of no hand holding, the rotating plate 8 is rotated at this time to enable the clamping block 13 to be clamped with the limiting groove 9 to fix the connecting block 10, at this time, the needle body 3 is installed, the needle body 3 is convenient to replace under the condition of no special tool, no special tool is required to be placed at a specially prepared position, and meanwhile the problem that the special tool is lost to affect the replacement of the needle of the sewing machine is avoided.

The holding groove 11 is arranged outside the connecting block 10, the rack 12 is slidingly connected inside the holding groove 11, the clamping block 13 is fixedly arranged outside the rack 12, the chute 14 is arranged on one surface of the connecting block 10 close to the limiting groove 9, the clamping block 13 is slidingly connected inside the chute 14, the clamping block 13 is clamped inside the limiting groove 9, the surface of the holding groove 11 close to the rack 12 is provided with the built-in groove 15, one surface of the rack 12 close to the built-in groove 15 is fixedly provided with the limiting block 16, the limiting block 16 is slidingly connected inside the built-in groove 15, the rotating rack 12 is in the moving range of the holding groove 11, the connecting pipe 5 is provided with the circular groove 17 close to one surface of the rotating plate 8, the inner clamping of the circular groove 17 is provided with the fixed shaft 18, the fixed shaft 18 is slidingly connected outside the rotating plate 8, one end of the fixed shaft 18 far from the circular groove 17 is fixedly provided with the pulling plate 19, the needle is prevented from shaking due to the fact that a user rotates the rotating plate 8 unintentionally, the spring 20 is fixedly connected to one surface of the pulling plate 19, which is close to the fixed shaft 18, one end of the spring 20, which is far away from the pulling plate 19, is fixedly connected to the outside of the rotating plate 8, the connection between the fixed shaft 18 and the circular groove 17 is reinforced, two limiting grooves 9, two racks 12, two clamping blocks 13 and two sliding grooves 14 are reserved, the connection stability of the connecting block 10 between the connecting pipes 5 is facilitated, the fixing shaft 18 is matched with the circular groove 17 arranged outside the connecting pipes 5, when the rotating plate 8 needs to be rotated, the pulling plate 19 is pulled upwards to drive the fixed shaft 18 to enable the clamping connection between the fixed shaft 18 and the circular groove 17 to be released, at the moment, the rotating plate 8 can be rotated, when the clamping blocks 13 are clamped into the circular groove 17, the rotating plate 8 is fixed through pressing the pulling plate 19, and the fact that the fixed shaft 18 is clamped into the circular groove 17 is prevented from shaking due to the fact that the user rotates the rotating plate 8 unintentionally.

Working principle:

when the needle body 3 is disassembled, the pull plate 19 is pulled upwards to drive the fixing shaft 18 to release the clamping connection between the fixing shaft 18 and the circular groove 17, the rotating plate 8 is rotated to drive the rotating shaft 6 to rotate, the rotating shaft 6 is driven to rotate the gear 7, the gear 7 is meshed with the rack 12 to drive the rack 12 to move, the rack 12 is driven to drive the clamping block 13 to move towards the inside of the placing groove 11 to release the clamping connection between the clamping block 13 and the limiting groove 9, when the rotating plate 8 at the moment is in a vertical state with the original rotating plate 8, the connection between the clamping block 13 and the sliding groove 14 is released from entering the inside of the placing groove 11, the connecting block 10 is pulled outwards to release the fixing of the connecting block 10 to the needle body 3, the needle body 3 can be taken out from the inside of the connecting plate 2 at the moment, when a new needle body 3 is installed, the needle body 3 is slid into the inside of the connecting plate 2 at the moment, the connecting block 10 is pressed to clamp and fix the needle body 3 at the moment, the fixing shaft 18 is pressed to fix the rotating plate 8 in the inside the circular groove 17, and when the needle body 3 does not drop in a handheld state, the rotating plate 8 is driven to clamp the clamping connection between the clamping block 13 and the limiting groove 9 at the moment.

The embodiments of the present utility model have been described in detail with reference to the drawings, but the present utility model is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present utility model.

Claims (6)

1. The utility model provides a sewing machine convenient to change syringe needle, includes sewing machine body (1), the outside fixed mounting of sewing machine body (1) has connecting plate (2), and the inside sliding connection of connecting plate (2) has syringe needle body (3), a serial communication port, logical groove (4) have been seted up to the outside of connecting plate (2), the inside fixed mounting of logical groove (4) has connecting pipe (5), the one end that connecting pipe (5) is close to connecting plate (2) is provided with slewing mechanism, slewing mechanism is including pivot (6), gear (7), rotating plate (8) and limiting groove (9), the inside at connecting pipe (5) is rotated in pivot (6), gear (7) fixed mounting is in the outside of pivot (6), rotating plate (8) fixed mounting runs through the outside of connecting pipe (5) at pivot (6), limiting groove (9) are seted up in the outside of connecting pipe (5), the inside sliding connection of connecting pipe (5) has connecting block (10), the outside of connecting block (10) is provided with slide mechanism, slide mechanism is including standing groove (11), rack (12), fixture block (13) and spout (14).

2. The sewing machine with the needle convenient to replace according to claim 1, wherein the placing groove (11) is formed in the outer portion of the connecting block (10), the rack (12) is slidably connected in the placing groove (11), the clamping block (13) is fixedly installed in the outer portion of the rack (12), the sliding groove (14) is formed in the connecting block (10) and is close to one face of the limiting groove (9), the clamping block (13) is slidably connected in the sliding groove (14), and the clamping block (13) is clamped in the limiting groove (9).

3. The sewing machine with the needle convenient to replace according to claim 1, wherein a built-in groove (15) is formed in one surface of the placing groove (11) close to the rack (12), a limiting block (16) is fixedly arranged on one surface of the rack (12) close to the built-in groove (15), and the limiting block (16) is slidably connected inside the built-in groove (15).

4. The sewing machine with the needle convenient to replace according to claim 1, characterized in that a round groove (17) is formed in one surface, close to the rotating plate (8), of the connecting pipe (5), a fixing shaft (18) is clamped in the round groove (17), the fixing shaft (18) is slidably connected to the outer portion of the rotating plate (8), and a pulling plate (19) is fixedly arranged at one end, far away from the round groove (17), of the fixing shaft (18).

5. The sewing machine of claim 4, wherein a spring (20) is fixedly connected to a surface of the pull plate (19) close to the fixed shaft (18), and one end of the spring (20) away from the pull plate (19) is fixedly connected to the outside of the rotating plate (8).

6. A sewing machine for facilitating needle replacement according to claim 1, wherein there are two of the limiting groove (9), the rack (12), the latch (13) and the chute (14).