Sewing machine shell

Abstract

The sewing machine shell comprises a bottom plate, the middle of the top face of the bottom plate is fixedly connected with an outer shell, threaded holes are formed in the four corners of the bottom plate, fastening bolts are connected into the threaded holes in a threaded mode, and the upper ends of the outer walls of the fastening bolts are fixedly connected with connecting discs in a sleeved mode. Connecting sleeves are fixedly connected to the four corners of the top face of the bottom plate, through mutual cooperation of all the components, when the bottom plate is fixed to the sewing machine, the inserting rods can be aligned with the circular inserting grooves in the left-right direction as long as fastening bolts are twisted till the bottom faces of the connecting round pieces are attached to the top face of the bottom plate, the fastening bolts are easy to reinforce, and the sewing machine is convenient to use. And the shifting rod is shifted to pull the inserting rod out of the circular inserting groove, upward movement limitation on the connecting wafer can be relieved, then the fixing block is pushed downwards into the movable opening, the inserting rod cannot be pushed outwards by the spring, an operator does not need to manually pinch the shifting rod to fix the position, and the operator can conveniently carry out subsequent operation on the fastening bolt.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewing machine technical field, especially a sewing machine shell. BACKGROUND

[0002] Sewing machine is the machine that one or more sewing thread is used to form one or more stitches on the sewing material, make one or more layers of sewing material interlaced or sewn together, sewing machine can sew cotton, hemp, silk, wool, artificial fiber and leather, plastic, paper product, the sewing stitch is neat and beautiful, flat and firm, sewing speed is fast, and easy to use, and the artistic form such as hand-push embroidery computerized embroidery is derived.

[0003] The existing patent (announcement number: CN219508170U) discloses a sewing machine shell, which comprises a shell and a reinforcing unit; the bottom end of the shell is provided with a bottom plate, the front side right end of the shell is provided with a wiring port, the front side left upper end of the shell is provided with a strip-shaped threading port, and the front side left lower end of the shell is provided with a circular threading port. The inventor found that the following problems in the prior art have not been well solved in the process of realizing the scheme: the bolt is not necessarily aligned left and right after being tightened, and needs to be adjusted, which is relatively troublesome. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a sewing machine shell to solve the problems mentioned in the background.

[0005] The technical scheme of the utility model is a sewing machine shell, which comprises a bottom plate, the middle part of the top surface of the bottom plate is fixedly connected with a shell, the four corners of the bottom plate are all provided with a threaded hole, a fastening bolt is threadedly connected in the threaded hole, a connecting disc is fixedly sleeved on the upper end of the outer wall of the fastening bolt, a connecting sleeve is fixedly connected at the four corners of the top surface of the bottom plate, the upper end of the fastening bolt and the connecting disc are movably sleeved in the inner cavity of the connecting sleeve, the connecting sleeve is arranged opposite to the threaded hole in an up-down direction, a circular insertion slot is formed in the side surface of the inner wall of the connecting sleeve and close to the bottom, a movable cavity is formed in the left and right sides of the inner cavity of the connecting disc, an insertion rod is movably sleeved in the two movable cavities, the distal ends of the two insertion rods are respectively penetrated to the outside of the left and right sides of the connecting disc, movable blocks are fixedly connected to the opposite sides of the distal ends of the two insertion rods, springs are fixedly connected to the opposite sides of the two movable blocks, and the opposite ends of the two springs are respectively fixedly connected to the opposite sides of the two movable cavities.

[0006] In one embodiment, the left and right sides of the top surface of the connecting disc are both provided with movable openings, the movable openings are communicated with the adjacent movable cavities, the top surface of the movable block is fixedly connected with a push rod, and the upper end of the push rod is slidably connected in the movable opening and penetrated to the outside of the top of the connecting disc.

[0007] In one embodiment, the upper end of the surface of the lever is movably sleeved with a fixed block, the fixed block is matched with the movable opening, a insertion hole is formed on the front side of the fixed block near the top, and the top surface of the lever is fixedly connected with a limiting block.

[0008] In one embodiment, the top surface of the fixed block is fixedly connected with a first magnet, the top surface of the limiting block is fixedly connected with a second magnet, and the first magnet and the second magnet are magnetically attracted.

[0009] In one embodiment, a movable groove is formed in the middle of the side of the insertion rod away from the movable block, a ball is movably connected in the movable groove, and the ball is slidably connected with the side surface of the inner wall of the connecting sleeve.

[0010] In one embodiment, the front side of the shell is provided with a wiring port at the right end, the front side of the shell is provided with a strip-shaped threading port at the upper left end, the front side of the shell is provided with a circular threading port at the lower left end, and the left end of the bottom plate is provided with a wire rolling avoiding port in the middle.

[0011] The beneficial effects of the utility model are:

[0012] Through the cooperation between the components, when the bottom plate is fixed on the sewing machine, the insertion rod can be aligned with the circular insertion groove to the left and right by only twisting the fastening bolt until the bottom surface of the connecting disc is attached to the top surface of the bottom plate, the fastening bolt is relatively easy to operate, the insertion rod is pulled out of the circular insertion groove by twisting the lever, the upward movement of the connecting disc is limited, then the fixed block is pushed downward into the movable opening, the insertion rod is not pushed outward by the spring, the operator does not need to manually pinch the lever to fix the position, and the operator can conveniently operate the fastening bolt. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the main sectional view of the utility model;

[0014] Figure 2 It is Figure 1 It is the structure enlarged view of A in the middle;

[0015] Figure 3 It is the bottom sectional view of the connecting sleeve;

[0016] Figure 4 It is the front view of the fixed block;

[0017] Figure 5 It is the bottom view of the bottom plate.

[0018] In the drawings, 1, bottom plate; 2, shell; 3, threaded hole; 4, fastening bolt; 5, connecting disc; 6, connecting sleeve; 7, circular slot; 8, movable cavity; 9, insertion rod; 10, movable block; 11, spring; 12, movable opening; 13, push rod; 14, fixed block; 15, insertion hole; 16, limiting block; 17, first magnet; 18, second magnet; 19, movable slot; 20, ball; 21, wiring port; 22, strip-shaped threading port; 23, circular threading port; 24, threading avoiding port. DETAILED DESCRIPTION

[0019] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict. The technical scheme of the utility model will be further described below with reference to the drawings of the utility model embodiments. The utility model is not limited to the following specific embodiments.

[0020] It should be understood that the same or similar reference numerals in the drawings of the embodiments correspond to the same or similar components. In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top" and "bottom" is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, therefore, the terms describing the position relationship in the drawings are only used for exemplary illustration, and cannot be understood as a limitation on the patent. For ordinary skilled persons in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0021] In one embodiment, as shown in Figures 1-5 A sewing machine shell, including a bottom plate 1, the middle of the top surface of the bottom plate 1 is fixedly connected with a shell 2, the corners of the bottom plate 1 are all provided with threaded holes 3, the threaded holes 3 are threadedly connected with fastening bolts 4, the outer wall of the fastening bolts 4 is fixedly sleeved with connecting discs 5 at the upper end, the corners of the top surface of the bottom plate 1 are all fixedly connected with connecting sleeves 6, the upper end of the fastening bolt 4 and the connecting disc 5 are movably sleeved in the inner cavity of the connecting sleeve 6, the connecting sleeve 6 is arranged opposite to the threaded hole 3 above and below, the side surface of the inner wall of the connecting sleeve 6 and close to the bottom is provided with a circular slot 7, the left and right sides of the inner cavity of the connecting disc 5 are both provided with movable cavities 8, the movable cavities 8 are movably sleeved with insertion rods 9, the opposite ends of the two insertion rods 9 are respectively penetrated to the outside of the left and right sides of the connecting disc 5, the opposite sides of the two movable blocks 10 are both fixedly connected with springs 11, and the opposite ends of the two springs 11 are respectively fixedly connected with the opposite sides of the two movable cavities 8.

[0022] In order to facilitate the pull rod 9 from the circular slot 7, so as to contact the upper limit of the connecting disc 5, the left and right sides of the top surface of the connecting disc 5 are provided with movable opening 12, movable opening 12 and adjacent movable cavity 8 are communicated, the top surface of the movable block 10 is fixedly connected with the pull rod 13, the upper end of the pull rod 13 is slidably connected in the movable opening 12 and penetrates to the outside of the top of the connecting disc 5.

[0023] In order to fix the pull rod 13 after the pull rod 9 is pulled out from the circular slot 7, so that the pull rod 9 is not pushed outward by the spring 11, the upper end of the surface of the pull rod 13 is movably sleeved with the fixed block 14, the fixed block 14 is matched with the movable opening 12, the front side of the fixed block 14 is provided with the insertion hole 15 near the top, and the top surface of the pull rod 13 is fixedly connected with the limiting block 16.

[0024] In order to fix the fixed block 14 after it is pulled out from the movable opening 12, so that it is not automatically moved up and down due to the operation of the sewing machine, resulting in additional sound caused by impacting the limiting block 16 or the fixed block 14, the top surface of the fixed block 14 is fixedly connected with the first magnet 17, the top surface of the limiting block 16 is fixedly connected with the second magnet 18, and the first magnet 17 and the second magnet 18 are magnetically attracted.

[0025] In order to avoid the friction resistance when the pull rod 9 contacts the inner wall of the connecting sleeve 6, the middle part of the side of the pull rod 9 away from the movable block 10 is provided with the movable groove 19, the movable groove 19 is movably connected with the ball 20, and the ball 20 is slidably connected with the side surface of the inner wall of the connecting sleeve 6.

[0026] In order to make the shell 2 cooperate with the sewing machine, the front side of the shell 2 is provided with the wiring port 21, the left upper end of the front side of the shell 2 is provided with the strip-shaped threading port 22, the left lower end of the front side of the shell 2 is provided with the circular threading port 23, and the left end of the bottom plate 1 is provided with the thread rolling avoiding port 24.

[0027] Working principle: the utility model uses, place bottom plate 1 on sewing machine, and make the threaded hole 3 on bottom plate 1 with the mounting hole on sewing machine alignment, then fastening bolt 4 is inserted into threaded hole 3, then twist fastening bolt 4 and make it move downward, the lower end of fastening bolt 4 passes through from threaded hole 3 and is connected with the mounting hole on sewing machine after thread, thereby bottom plate 1 is fixed on sewing machine, fastening bolt 4 moves downward and will drive connecting disc 5 to move downward, make connecting disc 5 enter connecting sleeve 6, when the bottom surface of connecting disc 5 and the top surface of bottom plate 1 are inlaid, the top surface of inserting rod 9 and the top of circular slot 7 are just in the same horizontal line, at this moment spring 11 will push movable block 10 to move, movable block 10 pushes inserting rod 9 to move, the end of inserting rod 9 away from movable block 10 is inserted into circular slot 7, the top surface of inserting rod 9 and the top of circular slot 7 are in contact, make connecting disc 5 unable to move upward, connecting disc 5 limits fastening bolt 4, make connecting disc 5 unable to move upward, because fastening bolt 4 cannot move upward, so fastening bolt 4 cannot rotate in threaded hole 3, thereby the stability of fastening bolt 4 to the fixation of bottom plate 1 is improved, just twist fastening bolt 4 until the bottom surface of connecting disc 5 and the top surface of bottom plate 1 are inlaid, inserting rod 9 can be aligned with circular slot 7, the reinforcement operation of fastening bolt 4 is relatively easy, when needing to take down fastening bolt 4, push push rod 13 and make it move towards the direction of fastening bolt 4, push rod 13 drives inserting rod 9 to move, make inserting rod 9 pull out from circular slot 7, remove the upward limit of connecting disc 5, push fixed block 14 downward and make it enter movable opening 12, fix push rod 13, make inserting rod 9 not be pushed outward by spring 11, thereby the operator does not need to manually pinch push rod 13 to fix the position, facilitate personnel to operate fastening bolt 4 subsequently, then twist fastening bolt 4 and can make it move upward, thereby bottom plate 1 is detached from sewing machine.

[0028] The technical features of the above embodiments can be combined arbitrarily, and to make the description concise, not all possible combinations of the technical features in the above embodiments are described, but as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the description.

[0029] The above embodiments only express several implementation manners of the utility model, and the description is more specific and detailed, but it should not be understood as the limitation of the scope of the utility model patent. It should be pointed out that for ordinary skilled persons in the art, on the premise of not departing from the concept of the utility model, a number of modifications and improvements can be made, which belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A sewing machine housing characterized by, The utility model relates to a bottom plate, the top surface middle part of bottom plate is fixedly connected with shell, the four corners of bottom plate all are equipped with threaded hole, the threaded hole is connected with fastening bolt, the upper end of fastening bolt outer wall is fixedly connected with connecting disc, the top surface four corners of bottom plate all are fixedly connected with connecting sleeve, the upper end of fastening bolt and connecting disc all movably sleeve connecting connecting sleeve inner chamber, connecting sleeve and adjacent threaded hole are arranged oppositely, the side surface of connecting sleeve inner wall and near bottom part are equipped with circular slot, the left and right sides of connecting disc inner chamber all are equipped with movable cavity, two movable cavities all movably sleeve connecting with the plug rod, the apart end of two plug rods is respectively threaded to the outside of left and right sides of connecting disc, the opposite side of two plug rods all are fixedly connected with movable block, the opposite side of two movable blocks all are fixedly connected with spring, and the opposite end of two springs is respectively fixedly connected with the opposite side of two movable cavities.

2. A sewing machine housing as claimed in claim 1, characterized in that: The left and right sides of connecting disc top surface all are equipped with movable opening, and the movable opening is communicated with adjacent movable cavity, the top of movable block is fixedly connected with the lever, and the upper end of lever is slidably connected in movable opening and is threaded to the outside of connecting disc top.

3. A sewing machine housing as claimed in claim 2, characterized in that: The upper end of lever surface movably sleeve connects with fixed block, and the fixed block is matched with movable opening, the front side of fixed block is equipped with insertion hole near top, and the top of lever is fixedly connected with limiting block.

4. A sewing machine housing as claimed in claim 3, characterized in that: The top of fixed block is fixedly connected with first magnet, the top of limiting block is fixedly connected with second magnet, and the first magnet and second magnet are magnetically attracted.

5. A sewing machine housing as claimed in claim 1, characterized in that: The middle part of plug rod side away from movable block is equipped with movable groove, and the movable groove movably connects with ball, and the ball is slidably connected with the side surface of connecting sleeve inner wall.

6. A sewing machine housing as claimed in claim 1, characterized in that: The front side right end of shell is equipped with wiring port, the front side left upper end of shell is equipped with strip threading port, the front side left lower end of shell is equipped with circular threading port, and the left end middle part of bottom plate is equipped with wire rolling avoiding port.

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