Synchronous belt replacement structure of cloth dragging wheel device and cloth dragging wheel device

Abstract

The utility model provides a synchronous belt replacing structure of a cloth dragging wheel device and the cloth dragging wheel device, and belongs to the technical field of sewing machine parts, the synchronous belt replacing structure comprises a base, a first connecting part, a containing cavity, a replacing opening and a rotatable driven wheel; the first motor is connected with the base, and the first motor is provided with a rotatable driving wheel; the two ends of the synchronous belt are arranged on the driven wheel and the driving wheel in a sleeving mode respectively, and the synchronous belt can be taken out from the replacement opening; and the replacement cover piece is provided with a second connecting part, the second connecting part is detachably connected with the first connecting part, and the replacement opening is covered when the replacement cover piece is connected with the base. The synchronous belt replacing device has the advantages that the replacing cover piece can be directly detached through detachable connection between the second connecting part and the first connecting part, so that the synchronous belt can be taken out from the replacing opening, and rapid replacing of the synchronous belt can be achieved without detaching the base shell.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewing machine parts and relates to a synchronous belt replacement structure of a cloth-pulling wheel device and a cloth-pulling wheel device. Background Art

[0002] Due to the special reasons of fabrics and sewing threads as well as the special structure of sewing machines, in order to ensure the flatness of sewing materials during the sewing process, a rear drag device that can drag the fabric backwards and drive the tugwheel to move upward is used on the market to ensure the flatness of sewing materials.

[0003] For example, a utility model patent with application number CN201910270099.X provides a fine-tunable sewing machine mop wheel device, including a mounting bracket, a first motor, a fine-tuning connecting rod, a tugwheel, a connecting mechanism and a belt transmission device. The mounting bracket includes a mounting plate and a shell. A notch is provided at the bottom of the shell. The fine-tuning connecting rod is inserted into the notch of the shell, and the mounting plate and the fine-tuning connecting rod are pivotally connected. A bent tail is formed at the upper end of the fine-tuning connecting rod, and a screw that can contact the shell is provided on the tail. The tugwheel is fixedly connected to the fine-tuning connecting rod. The first motor is connected to the tugwheel through a belt transmission device, and the second motor is connected to the fine-tuning connecting rod through a connecting mechanism.

[0004] To sum up, in some existing technical solutions, the second motor is installed on a mounting plate, and then installed on the shell through the mounting plate. Since the mounting plate is connected to the sewing machine, when the synchronous belt needs to be replaced, the entire shell needs to be removed to replace the synchronous belt, which is very inconvenient and has a large room for improvement. Summary of the invention

[0005] The utility model aims to solve the above problems in the prior art and proposes a synchronous belt replacement structure of a mop wheel device and a mop wheel device.

[0006] The purpose of the utility model can be achieved through the following technical solutions: a synchronous belt replacement structure of a mopping wheel device, comprising:

[0007] A base, which is provided with a first connecting portion, a receiving cavity, a replacement port and a rotatable driven wheel, wherein the replacement port is communicated with the receiving cavity, and the driven wheel is located in the receiving cavity;

[0008] a first motor connected to the base, the first motor being provided with a rotatable driving wheel, the driving wheel being located in the accommodating cavity;

[0009] A synchronous belt, two ends of which are respectively sleeved on the driven wheel and the driving wheel, the first motor can drive the driving wheel to rotate so as to drive the driven wheel to rotate through the synchronous belt, and the synchronous belt can be taken out from the replacement port;

[0010] The replacement cover is provided with a second connection part, the second connection part is detachably connected to the first connection part so that the replacement cover is detachably connected to the base, and the replacement cover covers the replacement port when connected to the base.

[0011] In the above-mentioned synchronous belt replacement structure of the mop wheel device, it also includes a connecting screw, the first connecting part is one of the connecting through hole and the connecting screw hole, the second connecting part is the other of the connecting through hole and the connecting screw hole, and the connecting screw can pass through the connecting waist hole and connect with the connecting screw hole.

[0012] In the above-mentioned synchronous belt replacement structure of the mop wheel device, the base is further provided with a removal port, the removal port is communicated with the accommodating cavity, and the driving wheel is exposed through the removal port.

[0013] In the above-mentioned synchronous belt replacement structure of the mopping wheel device, the first motor and the second motor are located on the same side of the base, and the replacement port and the removal port are located on opposite sides of the base.

[0014] In the above-mentioned synchronous belt replacement structure of the mopping wheel device, the base is also provided with a connecting plate, the connecting plate is used to be connected to the sewing machine, and the replacement port is located between the first motor and the connecting plate.

[0015] In the above-mentioned synchronous belt replacement structure of a mop wheel device, it also includes a connecting assembly, the replacement cover is a second motor, the second motor is provided with an eccentric wheel, the base is also provided with a rotatable adjusting arm, the two ends of the connecting assembly are respectively eccentrically connected to the eccentric wheel and the adjusting arm, the driven wheel is provided on the adjusting arm, the second motor can drive the eccentric wheel to rotate, thereby driving the adjusting arm to rotate through the connecting assembly, and the driven wheel is provided on the adjusting arm.

[0016] In the above-mentioned synchronous belt replacement structure of a mop wheel device, the connecting assembly includes a first connecting member, a second connecting member and a connecting rod, the first connecting member is rotatably connected to one of the eccentric wheel and the adjusting arm, the first connecting member is rotatably connected to the other of the eccentric wheel and the adjusting arm, one end of the connecting rod is rotatably connected to the first connecting member, and the other end of the connecting rod is threadedly connected to the second connecting member.

[0017] In the above-mentioned synchronous belt replacement structure of the mopping wheel device, the connecting assembly further includes a spring, the spring is sleeved on the connecting rod, and two ends of the spring are respectively in contact with the first connecting member and the second connecting member.

[0018] Secondly, a mop wheel device is characterized by comprising a synchronous belt replacement structure of the mop wheel device.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. The replacement cover can be directly removed through the detachable connection between the second connection part and the first connection part, so that the synchronous belt can be taken out from the replacement port, and the synchronous belt can be quickly replaced without removing the base shell.

[0021] 2. The connecting screw can pass through the connecting waist hole and connect with the connecting screw hole. When tightening, the replacement cover covers the replacement port. When not tightening, the replacement cover can be removed to expose the replacement port for replacement of the synchronous belt.

[0022] 3. The removal port exposes the driving wheel so that the user can easily insert his hand into the removal port to remove the synchronous belt sleeved on one end of the driving wheel, so that the synchronous belt can be taken out from the replacement port.

[0023] 4. The replacement port and the removal port are located on opposite sides of the base, so the user can use his left and right hands to remove the synchronous belt and take it out. The two hands will not interfere with each other, and the replacement efficiency is high.

[0024] 5. The base is also provided with a connecting plate for connecting to a sewing machine, and the replacement port is located between the first motor and the connecting plate, so that disassembling and replacing the cover will not affect the connection with the sewing machine.

[0025] 6. Directly set the replacement cover as the second motor, which can drive the eccentric wheel to rotate, thereby driving the adjustment arm to rotate through the connecting component, so that the rotation of the second motor can drive the adjustment arm to lift or fall relative to the base. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the synchronous belt replacement structure of the mop wheel device of the utility model.

[0027] Figure 2 It is a structural schematic diagram of the synchronous belt replacement structure of the mop wheel device of the utility model from another perspective.

[0028] Figure 3 It is an exploded view of the synchronous belt replacement structure of the mop wheel device of the utility model.

[0029] Figure 4This is an exploded view of the synchronous belt replacement structure of the mop wheel device of the utility model from another perspective.

[0030] In the figure, 100, base; 110, connecting through hole; 120, accommodating chamber; 130, replacement port; 140, driven wheel; 150, removal port; 160, connecting plate; 170, adjusting arm; 200, first motor; 210, driving wheel; 300, synchronous belt; 400, second motor; 410, connecting screw hole; 500, connecting assembly; 510, first connecting member; 520, second connecting member; 530, connecting rod; 540, spring. DETAILED DESCRIPTION

[0031] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0032] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0033] In addition, in the present invention, the descriptions of "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0036] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0037] like Figure 1-Figure 4 As shown, a synchronous belt replacement structure of a mop wheel device includes: a base 100, a first motor 200, a synchronous belt 300 and a replacement cover.

[0038] The base 100 is provided with a first connecting portion, a receiving chamber 120 , a replacement port 130 and a rotatable driven wheel 140 . The replacement port 130 is communicated with the receiving chamber 120 , and the driven wheel 140 is located in the receiving chamber 120 .

[0039] The first motor 200 is connected to the base 100 , and the first motor 200 is provided with a rotatable driving wheel 210 , and the driving wheel 210 is located in the accommodating cavity 120 .

[0040] The two ends of the synchronous belt 300 are respectively mounted on the driven wheel 140 and the driving wheel 210 . The first motor 200 can drive the driving wheel 210 to rotate, thereby driving the driven wheel 140 to rotate through the synchronous belt 300 . The synchronous belt 300 can be taken out from the replacement port 130 .

[0041] The replacement cover is provided with a second connection portion, which is detachably connected to the first connection portion so that the replacement cover is detachably connected to the base 100 , and the replacement cover covers the replacement port 130 when connected to the base 100 .

[0042] In this embodiment, the replacement cover can be directly removed through the detachable connection between the second connection part and the first connection part, so that the synchronous belt 300 can be taken out from the replacement port 130, and the synchronous belt 300 can be quickly replaced without removing the base 100 shell.

[0043] like Figure 1-Figure 4 As shown, on the basis of the above embodiment, it also includes a connecting screw, the first connecting part is one of the connecting through hole 110 and the connecting screw hole 410, the second connecting part is the other of the connecting through hole 110 and the connecting screw hole 410, and the connecting screw can pass through the connecting waist hole and be connected to the connecting screw hole 410.

[0044] In this embodiment, the connecting screw can pass through the connecting waist hole to connect with the connecting screw hole 410. When tightening, the replacement cover covers the replacement port 130. When not tightening, the replacement cover can be removed to expose the replacement port 130 for replacement of the synchronous belt 300.

[0045] like Figure 1-Figure 4 As shown, on the basis of the above embodiment, the base 100 is further provided with a removal port 150 , the removal port 150 is communicated with the accommodating cavity 120 , and the removal port 150 exposes the driving wheel 210 .

[0046] In this embodiment, the removal opening 150 exposes the driving wheel 210 so that the user can easily insert his hand into the removal opening 150 to remove the synchronous belt 300 sleeved on one end of the driving wheel 210 , so that the synchronous belt 300 can be taken out from the replacement opening 130 .

[0047] like Figure 1-Figure 4 As shown, based on the above embodiment, the first motor 200 and the second motor 400 are located on the same side of the base 100 , and the replacement port 130 and the removal port 150 are located on opposite sides of the base 100 .

[0048] In this embodiment, the replacement port 130 and the removal port 150 are located on opposite sides of the base 100, so the user can use his left and right hands to complete the actions of removing the synchronous belt 300 and taking out the synchronous belt 300 respectively. The two hands will not interfere with each other, and the replacement efficiency is high.

[0049] like Figure 1-Figure 4 As shown, on the basis of the above embodiment, the base 100 is further provided with a connecting plate 160 , and the connecting plate 160 is used to connect with the sewing machine, and the replacement port 130 is located between the first motor 200 and the connecting plate 160 .

[0050] In this embodiment, the base 100 is further provided with a connecting plate 160 for connecting to a sewing machine, and the replacement port 130 is located between the first motor 200 and the connecting plate 160, so that disassembling and replacing the cover will not affect the connection with the sewing machine.

[0051] like Figure 1-Figure 4As shown, on the basis of the above embodiment, it also includes a connecting component 500, the replaceable cover is a second motor 400, the second motor 400 is provided with an eccentric wheel, the base 100 is also provided with a rotatable adjusting arm 170, the two ends of the connecting component 500 are respectively eccentrically connected to the eccentric wheel and the adjusting arm 170, the driven wheel 140 is provided on the adjusting arm 170, the second motor 400 can drive the eccentric wheel to rotate, thereby driving the adjusting arm 170 to rotate through the connecting component 500, and the driven wheel 140 is provided on the adjusting arm 170.

[0052] In this embodiment, the replacement cover is directly set as the second motor 400, which can drive the eccentric wheel to rotate and thereby drive the adjustment arm 170 to rotate through the connecting component 500, so that the rotation of the second motor 400 can drive the adjustment arm 170 to be lifted or dropped relative to the base 100.

[0053] like Figure 1-Figure 4 As shown, based on the above embodiment, the connecting assembly 500 includes a first connecting member 510, a second connecting member 520 and a connecting rod 530, the first connecting member 510 is rotatably connected to one of the eccentric wheel and the adjusting arm 170, the first connecting member 510 is rotatably connected to the other of the eccentric wheel and the adjusting arm 170, one end of the connecting rod 530 is rotatably connected to the first connecting member 510, and the other end of the connecting rod 530 is threadedly connected to the second connecting member 520.

[0054] In this embodiment, one end of the connecting rod 530 is rotatably connected to the first connecting member 510 , and the other end of the connecting rod 530 is threadedly connected to the second connecting member 520 , so that the initial angular position of the adjusting arm 170 relative to the base 100 can be changed.

[0055] like Figure 1-Figure 4 As shown, based on the above embodiment, the connecting assembly 500 further includes a spring 540 , and the spring 540 is sleeved on the connecting rod 530 , and two ends of the spring 540 are in contact with the first connecting member 510 and the second connecting member 520 respectively.

[0056] In this embodiment, two ends of the spring 540 are in contact with the first connecting member 510 and the second connecting member 520 respectively, thereby pushing the first connecting member 510 and the second connecting member 520 away from each other, so that the connecting assembly 500 is in a tightened state.

[0057] Secondly, a mop wheel device is characterized by comprising a synchronous belt replacement structure of the mop wheel device.

Claims

1. A synchronous belt replacement structure for a mopping wheel device, characterized in that: include: A base, which is provided with a first connecting portion, a receiving cavity, a replacement port and a rotatable driven wheel, wherein the replacement port is communicated with the receiving cavity, and the driven wheel is located in the receiving cavity; a first motor connected to the base, the first motor being provided with a rotatable driving wheel, the driving wheel being located in the accommodating cavity; A synchronous belt, two ends of which are respectively sleeved on the driven wheel and the driving wheel, the first motor can drive the driving wheel to rotate so as to drive the driven wheel to rotate through the synchronous belt, and the synchronous belt can be taken out from the replacement port; The replacement cover is provided with a second connection part, the second connection part is detachably connected to the first connection part so that the replacement cover is detachably connected to the base, and the replacement cover covers the replacement port when connected to the base.

2. A synchronous belt replacement structure for a mopping wheel device according to claim 1, characterized in that: It also includes a connecting screw, the first connecting part is one of the connecting through hole and the connecting screw hole, the second connecting part is the other of the connecting through hole and the connecting screw hole, and the connecting screw can pass through the connecting waist hole and be connected to the connecting screw hole.

3. The synchronous belt replacement structure of the mopping wheel device according to claim 1, characterized in that: The base is also provided with a removal opening, the removal opening is communicated with the accommodating cavity, and the driving wheel is exposed through the removal opening.

4. A synchronous belt replacement structure for a mopping wheel device as claimed in claim 3, characterized in that: The first motor and the replacement cover are located on the same side of the base, and the replacement opening and the removal opening are located on opposite sides of the base.

5. A synchronous belt replacement structure for a mopping wheel device as claimed in claim 4, characterized in that: The base is also provided with a connecting plate, and the connecting plate is used to be connected to the sewing machine, and the replacement port is located between the first motor and the connecting plate.

6. The synchronous belt replacement structure of the mopping wheel device according to claim 1, characterized in that: It also includes a connecting component, the replaceable cover is a second motor, the second motor is provided with an eccentric wheel, the base is also provided with a rotatable adjusting arm, the two ends of the connecting component are respectively eccentrically connected to the eccentric wheel and the adjusting arm, the driven wheel is provided on the adjusting arm, and the second motor can drive the eccentric wheel to rotate, thereby driving the adjusting arm to rotate through the connecting component.

7. A synchronous belt replacement structure for a mopping wheel device as claimed in claim 6, characterized in that: The connecting assembly includes a first connecting member, a second connecting member and a connecting rod, the first connecting member is rotatably connected to one of the eccentric wheel and the adjusting arm, the first connecting member is rotatably connected to the other of the eccentric wheel and the adjusting arm, one end of the connecting rod is rotatably connected to the first connecting member, and the other end of the connecting rod is threadedly connected to the second connecting member.

8. A synchronous belt replacement structure for a mopping wheel device as claimed in claim 7, characterized in that: The connecting assembly further comprises a spring, wherein the spring is sleeved on the connecting rod, and two ends of the spring are respectively in contact with the first connecting member and the second connecting member.

9. A mop wheel device, characterized in that: It comprises a synchronous belt replacement structure of a mop wheel device as described in any one of claims 1-8.

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