阅读说明：本技术 一种方便调节的缝纫机 (Sewing machine convenient to adjust ) 是由 陈文强 于 2020-03-20 设计创作，主要内容包括：本发明涉及缝纫机技术领域,具体涉及一种方便调节的缝纫机,包括工作台和机头,所述机头固定在工作台上表面的左端,其特征在于,所述工作台下表面的左右两端均设置有上支脚,所述上支脚的下端连接有锯齿条,所述上支脚的下方设置有下支脚,所述下支脚中间段的前侧面上设置有半圆柱块,所述下支脚和半圆柱块的内部开设有连成一体的内腔；本发明作业人员只需要同时用脚反复几次踩下脚压板即可实现对机架高度的开始调节；同时在主动转轮和机头的从动转轮间设置皮带张力调节轮,其皮带张力调节轮与上支脚联动设置,始终使得皮带处理绷直状态,防止在工作过程中滑动,从而使得整个设备运行起来更加平稳定。(The invention relates to the technical field of sewing machines, in particular to a sewing machine convenient to adjust, which comprises a workbench and a machine head, wherein the machine head is fixed at the left end of the upper surface of the workbench; the operator can realize the initial adjustment of the height of the rack only by repeatedly treading the foot pressing plate by feet for several times; meanwhile, a belt tension adjusting wheel is arranged between the driving rotating wheel and the driven rotating wheel of the machine head, and the belt tension adjusting wheel is in linkage with the upper supporting leg, so that a belt is always in a stretched state, the belt is prevented from sliding in the working process, and the whole equipment is enabled to run more flatly and stably.)

1. A sewing machine convenient to adjust comprises a workbench (1) and a machine head (2), wherein the machine head (2) is fixed at the left end of the upper surface of the workbench (1), and is characterized in that upper support legs (3) are arranged at the left end and the right end of the lower surface of the workbench (1), a sawtooth strip (4) is connected to the lower end of each upper support leg (3), a lower support leg (5) is arranged below each upper support leg (3), a semi-cylindrical block (6) is arranged on the front side surface of the middle section of each lower support leg (5), an inner cavity (7) which is connected into a whole is formed inside each lower support leg (5) and the semi-cylindrical block (6), an opening is formed in the upper end of each lower support leg (5), the sawtooth strip (4) is inserted into the inner cavity (7) through the opening, an L-shaped rotating strip (8) is rotatably connected to the bottom wall of the inner cavity (7), a ratchet (9) is arranged on the side surface of the upper end of the L-shaped rotating strip (, a compression spring (10) is arranged on the bottom wall of the inner cavity (7) on the right side of the lower end of the L-shaped rotating strip (8), the upper end of the compression spring (10) is connected with the lower end of the L-shaped rotating strip (8), a reset pressure lever (11) is arranged on the lower support leg (5) right above the compression spring (10), a rotating opening (601) is formed in the outer circle side surface of the semi-cylindrical block (6), an inclined strip sliding opening (602) is formed in the inner side surface of the semi-cylindrical block (6), an incomplete gear (12) is arranged in the inner cavity (7) at the position of the semi-cylindrical block (6), the tooth surface of the incomplete gear (12) is meshed with the sawtooth strips (9), connecting strips (13) extending out of the rotating opening (601) are arranged on the sawtooth strips (9), foot pressing plates (14) are connected to the outer ends of the connecting strips (13), and a rotating shaft (15) is connected to the side surfaces of the, the rotating shaft (15) extends out of the oblique strip sliding opening (602), the outer end of the rotating shaft is connected with a sleeve (16), a fixing plate (17) is arranged on the outer surface of the lower semi-cylindrical block (6) along the direction of the oblique strip sliding opening (602), and a return spring (18) is arranged between the fixing plate (17) and the sleeve (16);

a pedal (19) is rotatably arranged between the two lower support legs (5), a rotating connecting rod (20) is arranged on the pedal (19), one of the lower support legs (5) is rotatably provided with a driving rotating wheel (21), a rocker (22) is arranged on the axis of the driving rotating wheel (21), the other end of the rotating connecting rod (20) is connected with the rocker (22), and a belt adjusting mechanism is arranged above the driving rotating wheel (21).

2. The sewing machine convenient to adjust according to claim 1, wherein the belt adjusting mechanism comprises a belt tension adjusting wheel (23), a connecting shaft is arranged on the axis of the belt tension adjusting wheel (23), an inclined sliding block (24) is connected to the end portion of the connecting shaft in a rotating mode, an inclined sliding groove is formed in the inner side face of an upper support leg (3) close to the driving rotating wheel (21), the inclined sliding block (24) is arranged in the inclined sliding groove, a pushing rotating rod (25) is connected to the outer end of the inclined sliding block (24), the lower end of the pushing rotating rod (25) is connected with the inner side face of a lower support leg (5) below the pushing rotating rod in a rotating mode, and a belt is arranged between the driving rotating wheel (21), the belt tension adjusting wheel (23) and a driven rotating wheel on the machine head (2).

3. The sewing machine convenient to adjust according to claim 1, characterized in that a rotating plate (26) is arranged on the workbench (1) far away from one side of the machine head (2), the rotating plate (26) is rotatably connected with the side surface of the workbench (1) through a hinge, a semicircular accommodating groove (261) is formed in the lower surface of the rotating plate (26), and an arc-shaped rotating plate (27) is rotatably arranged in the semicircular accommodating groove (261).

4. Sewing machine with ease of adjustment according to claim 1, characterized in that a storage drawer (28) is provided at the lower face of the front end of the table (1).

5. Sewing machine facilitating the adjustment according to claim 1, characterized in that the lower surface of the lower foot (5) is provided with a shock pad (29), said shock pad (29) being made of rubber material.

6. An adjustable sewing machine according to claim 1, wherein the upper surface of the foot presser (14) is provided with anti-slip threads (141).

7. The sewing machine convenient to adjust as claimed in claim 1, wherein the surface of the pedal plate (19) is provided with a plurality of strip-shaped openings (30), and the strip-shaped openings (30) are arranged in parallel.

Technical Field

The invention relates to the technical field of sewing machines, in particular to a sewing machine convenient to adjust.

Background

The sewing machine is a processing device capable of sewing cotton, hemp, silk, wool, artificial fiber and other fabrics and leather, and the sewn stitches are neat, beautiful, flat and firm, the sewing speed is high, and the use is simple and convenient. Common sewing machine includes the base in the existing market, sets up workstation on the base, installs the aircraft nose on the workstation, is provided with the eedle in the aircraft nose, but traditional sewing machine frame is fixed, can't adjust it, and to the crowd of difference and to the sewing product of equidimension not, it is inconvenient to use.

The utility model with the patent number of CN209584554U discloses a sewing machine frame convenient to adjust, which comprises two bottom plates, wherein sleeve plates are fixed at the top ends of the two bottom plates, adjusting plates are arranged inside the sleeve plates, two guide rods are fixed between the inner walls of the adjusting plates, a first spring and a moving plate are slidably sleeved outside the guide rods, the first spring is positioned between the two moving plates, a limiting plate is fixed on one side, far away from the two moving plates, of each moving plate, and a vertical plate is fixed at the top end of the adjusting plate; the utility model discloses though can be according to operation personnel's needs, to the height of adjusting the sewing machine frame, but the step is loaded down with trivial details relatively in its accommodation process, and its structure after adjusting is unstable moreover, consequently has certain drawback in the use. In addition, although the rotating plate of the sewing machine can increase the area of the working table, the rotating plate is relatively complicated to fix after rotating to the horizontal state, and great inconvenience is brought to operators. Therefore, aiming at the defects of the existing sewing machine frame which is convenient to adjust, the sewing machine which can quickly adjust the height of the sewing machine, is relatively stable after adjustment and can quickly increase the working table top is a technical problem to be solved.

Disclosure of Invention

The invention aims to solve the technical problem of designing a sewing machine convenient to adjust, and aims to solve the defects that the steps of the existing sewing machine frame convenient to adjust are complicated in the adjusting process, and the adjusted frame is unstable.

The invention is realized by the following technical scheme:

a sewing machine convenient to adjust comprises a workbench and a machine head, wherein the machine head is fixed at the left end of the upper surface of the workbench, and the sewing machine is characterized in that upper support legs are arranged at the left end and the right end of the lower surface of the workbench, the lower ends of the upper support legs are connected with sawtooth racks, lower support legs are arranged below the upper support legs, a semi-cylindrical block is arranged on the front side surface of the middle section of each lower support leg, inner cavities connected into a whole are formed in the lower support legs and the semi-cylindrical block, an opening is formed in the upper end of each lower support leg, the sawtooth racks are inserted into the inner cavities through the openings, an L-shaped rotating strip is rotatably connected to the bottom wall of each inner cavity, ratchets are arranged on the side surface of the upper end of each L-shaped rotating strip, close to one side of the sawtooth racks, a compression spring is arranged on the bottom wall of the inner cavities on the right, a lower support leg positioned right above the compression spring is provided with a reset pressure rod, the outer circle side surface of the semi-cylindrical block is provided with a rotating opening, the inner side surface of the semi-cylindrical block is provided with a bevel sliding opening, an inner cavity positioned at the position of the semi-cylindrical block is provided with an incomplete gear, the tooth surface of the incomplete gear is meshed with a sawtooth rack, the sawtooth rack is provided with a connecting strip extending out of the rotating opening, the outer end of the connecting strip is connected with a foot pressure plate, the side surface of the incomplete gear is connected with a rotating shaft, the rotating shaft extends out of the bevel sliding opening and is connected with a sleeve at the outer end of the rotating shaft, a fixing plate is arranged on the outer surface of the semi-cylindrical block at the lower end in the bevel sliding opening direction, and;

a pedal is rotatably arranged between the two lower support legs, a rotating connecting rod is arranged on the pedal, a driving rotating wheel is rotatably arranged on one lower support leg, a rocker is arranged on the axis of the driving rotating wheel, the other end of the rotating connecting rod is connected with the rocker, and a belt adjusting mechanism is arranged above the driving rotating wheel.

As the further setting of above-mentioned scheme, belt adjustment mechanism includes belt tension regulating wheel, be provided with the connecting axle on belt tension regulating wheel's the axle center, the tip of connecting axle rotates and is connected with the slide block that appears to one side, is close to the oblique spout has been seted up to the last support leg medial surface of initiative runner, the slide block that appears to one side sets up in oblique spout, the outer end of slide block that appears to one side is connected with the promotion bull stick, the lower extreme that promotes the bull stick rotates rather than the lower stabilizer blade medial surface of below and is connected, be provided with the belt between the driven runner on initiative runner, belt tension regulating wheel and the aircraft nose.

According to the scheme, the worktable far away from one side of the machine head is provided with the rotating plate, the rotating plate is rotatably connected with the side face of the worktable through a hinge, the lower surface of the rotating plate is provided with a semicircular accommodating groove, and the semicircular accommodating groove is rotatably provided with the arc-shaped rotating plate.

As a further arrangement of the scheme, a storage drawer is arranged on the lower surface of the front end of the workbench.

As a further arrangement of the above scheme, the lower surface of the lower support leg is provided with a shock pad, and the shock pad is made of rubber materials.

As a further arrangement of the scheme, the upper surface of the foot pressing plate is provided with anti-skid grains.

As a further arrangement of the scheme, a plurality of strip-shaped openings are formed in the surface of the pedal plate, and the strip-shaped openings are arranged in parallel.

Has the advantages that:

1. compared with the prior art, the whole support legs are respectively arranged to be the upper support leg and the lower support leg, the lower support leg is provided with the sawtooth strips, when the height of the workbench needs to be increased, an operator only needs to repeatedly step on the foot pressing plate by feet for several times, when the foot pressing plate is pressed downwards, a rotating shaft on an incomplete gear in the foot pressing plate firstly slides downwards from the direction of a slide opening of the bevel strip and then rotates, the upper tooth surface of the incomplete gear is meshed with the sawtooth strips to jack the upper support leg upwards, the L-shaped rotating strip jacks the ratchets into the sawtooth strips to clamp and fix the sawtooth strips under the action of the compression spring, and the incomplete gear returns to the original state under the action of the reset spring after the foot pressing plate is loosened; through the technical principle, the height of the invention can be adjusted according to the actual requirement of an operator, and the height can be adjusted by pressing down the foot pressing plate for multiple times; in addition, the belt tension adjusting wheel is arranged between the driving rotating wheel and the driven rotating wheel of the machine head and is in linkage arrangement with the upper supporting leg, so that the belt is always in a stretched state, the belt is prevented from sliding in the working process, and the whole equipment is more stable in operation.

2. The rotary plate is arranged, when fabrics with larger sizes are sewn, the rotary plate can be rotated to be horizontal and is in seamless connection with the workbench, then the arc-shaped rotary plate in the semicircular accommodating groove is rotated out, and the rotary plate can be fixed.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a first angular perspective view of the present invention;

FIG. 2 is a second perspective view of the present invention;

FIG. 3 is a perspective view of the connection of the upper leg and the lower leg of the present invention;

FIG. 4 is an enlarged view of the structure at A in FIG. 3;

FIG. 5 is an interior cross-sectional view of the upper leg and the lower leg of the present invention;

FIG. 6 is a perspective view showing the connection between the foot board and the driving wheel;

fig. 7 is a perspective view of a rotating plate according to the present invention.

Wherein, 1-workbench, 2-machine head, 3-upper support foot, 4-sawtooth strip, 5-lower support foot, 6-semi-cylindrical block, 601-rotating port, 602-oblique strip sliding port, 7-inner cavity, 8-L type rotating strip, 9-ratchet, 10-compression spring, 11-reset pressure bar, 12-incomplete gear, 13-connecting strip, 14-foot pressing plate, 141-anti-slip pattern, 15-rotating shaft, 16-sleeve, 17-fixing plate, 18-reset spring, 19-pedal, 20-rotating connecting rod, 21-driving rotating wheel, 22-rocker, 23-belt tension adjusting wheel, 24-oblique sliding block, 25-pushing rotating rod, 26-rotating plate, 261-semicircular accommodating groove, 27-arc rotating plate, 28-storage drawer, 29-shock pad and 30-strip-shaped opening.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the invention and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail with reference to the accompanying drawings 1 to 7, in conjunction with the embodiments.