Guide cutting device of handheld electric pipe cutting machine

Abstract

The utility model discloses a guide cutting device of a handheld electric pipe cutting machine, which relates to the field of handheld electric pipe cutting machines and is characterized in that a reduction gear box and a machine body are arranged on a power device, the guide cutting device is arranged in the machine body, a cutter is arranged on the guide cutting device, and a knife edge cutting seat is integrally arranged at the front end of the machine body. The power device pushes the transmission screw to rotate so as to drive the driving seat to move forwards, so that the triangular cutter on the driving seat moves forwards to push the cutter head to move forwards linearly and push the cutter tip to cut into the water pipe, the other force perpendicular to the cutting surface enables the cutter head to be tightly pressed on the surface of the water pipe, and large pressure can be generated due to the small area of the tip. The water pipe material can be effectively wedged in, the water pipe material is split in the cutting direction through the blades on the two sides of the rear tool nose, the output shaft of the motor and the tool are designed according to the linear running principle, cutting is more stable, and time and labor are saved during operation.

Description

Technical fields:

[0001] This utility model relates to a guide and cutting device for a handheld electric pipe cutter, belonging to the technical field of handheld electric pipe cutters. Background technology:

[0002] During engineering construction, various plastic pipe fittings are required. To meet different usage needs, users need to use pipe cutters to cut the plastic pipe fittings to the appropriate lengths for use. The equipment used for cutting plastic pipe fittings is divided into handheld manual pipe cutters and electric pipe cutters. Existing electric pipe cutters are generally large machines that are efficient at cutting plastic pipe fittings, but they need to be fixed in place and are not convenient to move. Handheld manual pipe cutters are small and easy to carry, but they are less efficient and time-consuming and labor-intensive when cutting pipes. Utility model content:

[0003] To address the above problems, the technical problem to be solved by this utility model is to provide a guiding and cutting device for a handheld electric pipe cutter.

[0004] The present invention relates to a guide cutting device for a handheld electric pipe cutter, comprising a power unit, a reduction gearbox, a machine body, a guide cutting device, a blade, and a blade cutting seat. The power unit is equipped with a reduction gearbox and a machine body, the machine body is equipped with a guide cutting device, the guide cutting device is equipped with a blade, and the front end of the machine body is integrally equipped with a blade cutting seat.

[0005] The machine body is composed of a housing 1 and a housing 2. The housing 1 and the housing 2 are fixedly connected by several large screws. A guide connecting limit rod is fixed in front of the connecting cavity of the housing 2. A connecting hole is provided on the inner side of the guide connecting limit rod. Guide post holes are provided on both sides of the front of the connecting cavity of the housing 2. A guide cutting device is provided in the connecting cavity of the housing 2.

[0006] The guiding cutting device consists of guide post one, guide post two, transmission screw, and drive seat. The drive seat has an internal threaded hole at its center. There are guide hole one and guide hole two on the left and right sides of the drive seat, respectively. The transmission screw is installed in the internal threaded hole. Guide post one and guide post two are installed in guide hole one and guide hole two, respectively. Guide post one and guide post two are respectively located on the left and right sides of the transmission screw. The front and rear ends of guide post one and guide post two are fixed to guide post hole one on the front sides of the connecting cavity of housing two and guide post hole two and guide post hole three on the reduction gearbox, respectively.

[0007] Preferably, the upper two sides of the drive seat are provided with positioning hole one and positioning hole two respectively, and the lower two ends of the cutter are provided with positioning hole three and positioning hole four respectively. The lower part of the cutter is set in the upper two sides of the drive seat and is fixedly connected by small screws. The center of the cutter adopts a guide straight groove through hole design and cooperates with the transmission screw in the connecting cavity of the housing two. The cutting edge on the cutter adopts a triangular structure design.

[0008] Preferably, the reduction gearbox is provided with a reduction gear set and a reduction gear ring, the reduction gear set and the reduction gear ring mesh with each other, and bearing one and bearing two are respectively provided at the upper and lower ends of the reduction gear set, wherein bearing one is provided with a bearing square hole.

[0009] Preferably, the front of the transmission screw adopts a cylindrical structure design and is fitted with a wear-resistant sleeve, which is located in the connecting hole at the center of the guide connecting limit rod. The rear of the transmission screw adopts a flat square structure design and is inserted into the bearing square hole of the reduction gearbox.

[0010] Preferably, the power unit is provided with a motor output shaft, and the motor output shaft is provided with a sun gear that meshes with the reduction gear set in the reduction gearbox.

[0011] The beneficial effects of this utility model are as follows: It has a reasonable structural design, beautiful appearance, novel and unique shape, simple operation, convenient use, small size, and easy to carry. The power device drives the transmission screw to rotate, thereby driving the drive seat to move forward. This causes the triangular cutter on the drive seat to move forward, pushing the cutter head forward in a straight line and pushing the cutter tip to cut into the water pipe. Another force perpendicular to the cutting surface makes the cutter head press tightly against the surface of the water pipe. Due to the small tip area, a large pressure is generated, which can effectively wed into the water pipe material. The blades on both sides of the rear cutter tip split the water pipe material along the cutting direction. The linear rotation principle design of the motor output shaft and the cutter makes the cutting more stable and saves time and effort in operation. Attached image description:

[0012] For ease of explanation, this utility model is described in detail below with reference to the specific embodiments and accompanying drawings.

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is an exploded view of the present invention;

[0015] Figure 3 This is an exploded view of the present invention;

[0016] Figure 4 This is a partial structural schematic diagram of the present invention;

[0017] Figure 5This is an exploded view of the installation of the guide cutting device in this utility model;

[0018] Figure 6 This is a schematic diagram of the installation structure of the cutting tool in this utility model;

[0019] Figure 7 for Figure 6 Exploded view;

[0020] Figure 8 This is a schematic diagram of the internal structure of the reduction gearbox in this utility model;

[0021] Figure 9 This is a schematic diagram of the installation structure of the bearing square hole in this utility model.

[0022] 1-Power unit; 101-Motor output shaft; 102-Sun gear; 2-Reduction gearbox; 201-Guide post hole two; 202-Guide post hole three; 203-Reduction gear set; 204-Reduction gear ring; 205-Bearing one; 2051-Bearing square hole; 206-Bearing two; 3-Main body; 301-Main housing one; 302-Main housing two; 3021-Guide connecting limit rod; 3022-Connecting hole; 3023-Guide post hole one; 303 - Large screw; 4 - Guide cutting device; 401 - Guide post one; 402 - Guide post two; 403 - Transmission screw; 4031 - Wear-resistant sleeve; 404 - Drive seat; 4041 - Internal threaded hole; 4042 - Guide hole one; 4043 - Guide hole two; 4044 - Positioning hole one; 4045 - Positioning hole two; 5 - Cutting tool; 501 - Positioning hole three; 502 - Positioning hole four; 503 - Small screw; 6 - Cutting edge seat. Detailed implementation method:

[0023] like Figures 1-9 As shown, the specific embodiment adopts the following technical solution: it includes a power unit 1, a reduction gearbox 2, a machine body 3, a guide cutting device 4, a knife 5, and a cutting edge seat 6. The power unit 1 is equipped with a reduction gearbox 2 and a machine body 3. The machine body 3 is equipped with a guide cutting device 4. The guide cutting device 4 is equipped with a knife 5. The front end of the machine body 3 is integrally equipped with a cutting edge seat 6.

[0024] The body 3 is composed of a first housing 301 and a second housing 302. The first housing 301 and the second housing 302 are fixedly connected by several large screws 303. A guide connecting limit rod 3021 is fixed at the front of the connecting cavity of the second housing 302. A connecting hole 3022 is provided on the inner side of the guide connecting limit rod 3021. Guide post holes 3023 are respectively provided on both sides of the front of the connecting cavity of the second housing 302. A guide cutting device 4 is provided in the connecting cavity of the second housing 302.

[0025] The guiding cutting device 4 consists of a guide post 401, a guide post 402, a transmission screw 403, and a drive seat 404. The drive seat 404 has an internal threaded hole 4041 at its center. The left and right sides of the drive seat 404 have guide holes 4042 and 4043, respectively. The transmission screw 403 is installed in the internal threaded hole 4041. The guide post 401 and guide post 402 are installed in the guide holes 4042 and 4043, respectively. The guide post 401 and guide post 402 are respectively located on the left and right sides of the transmission screw 403. The front and rear ends of the guide post 401 and guide post 402 are fixed to the guide post holes 3023 on the front sides of the connecting cavity of the housing 2 302 and the guide post holes 201 and 202 on the reduction gearbox 2, respectively. This design can drive the drive seat 404 to move linearly.

[0026] Positioning holes 4044 and 4045 are respectively provided in the connecting grooves on both sides of the upper part of the drive seat 404. Positioning holes 501 and 502 are respectively provided at the lower ends of the cutter 5. The lower part of the cutter 5 is located in the connecting grooves on both sides of the upper part of the drive seat 404 and is fixedly connected by small screws 503. The center of the cutter 5 adopts a guide straight groove through hole design, and cooperates with the transmission screw 403 in the connecting cavity of the housing 302 to ensure that the cutter 5 moves in a straight line without deviation, making the cutting more stable. The cutting edge on the cutter 5 adopts a triangular structure design.

[0027] The reduction gearbox 2 is equipped with a reduction gear set 203 and a reduction gear ring 204. The reduction gear set 203 and the reduction gear ring 204 mesh with each other to achieve the effect of speed reduction. The upper and lower ends of the reduction gear set 203 are respectively equipped with a bearing 1 205 and a bearing 206, wherein the bearing 1 205 is provided with a bearing square hole 2051.

[0028] The front of the transmission screw 403 adopts a cylindrical structure design and is fitted with a wear-resistant sleeve 4031, which is located in the connecting hole 3022 at the center of the guide connecting limit rod 3021. The rear of the transmission screw 403 adopts a flat square structure design and is inserted into the bearing square hole 2051 of the reduction gearbox 2. The bearing square hole 2051 and the flat square structure at the rear of the transmission screw 403 can be replaced with any shape except a circular structure to complete the transmission principle.

[0029] The power unit 1 is equipped with a motor output shaft 101, and the motor output shaft 101 is equipped with a sun gear 102, which meshes with the reduction gear set 204 in the reduction gear box 2 to achieve the transmission function.

[0030] The working principle of this specific embodiment is as follows: The sun gear 102 on the output shaft 101 of the motor on the power unit 1 rotates, which drives the three reduction planetary gears on the reduction gear set 203 to rotate. The three reduction planetary gears rotate on the reduction gear ring 204 to complete the deceleration. After the deceleration is completed, the transmission screw 403 rotates. The transmission screw 403 drives the drive seat 404 to move forward. The drive seat 404 drives the cutter 5 to move forward and pushes the cutter head forward in a straight line, pushing the cutter tip to cut into the water pipe. Another force perpendicular to the cutting surface makes the cutter head press tightly against the surface of the water pipe. Due to the small tip area, a large pressure is generated, which can effectively wed into the water pipe material. Then, the cutting edges on both sides of the cutter tip split the water pipe material along the cutting direction, thereby completing the cutting.

[0031] This specific implementation method features a reasonable structural design, beautiful appearance, novel and unique shape, simple operation, convenient use, small size, and easy portability. The power unit drives the transmission screw to rotate, which in turn drives the drive seat forward. This causes the triangular cutter on the drive seat to move forward, pushing the cutter head in a straight line and cutting into the water pipe. Another force perpendicular to the cutting surface presses the cutter head tightly against the water pipe surface. Due to the small tip area, a large pressure is generated, effectively wedging into the water pipe material. The blades on both sides of the rear cutter tip then split the water pipe material along the cutting direction. The linear rotation principle between the motor output shaft and the cutter makes the cutting more stable and saves time and effort during operation.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A hand-held electric pipe cutting machine guided cutting device, characterized in that: It contains power device (1), reduction gear box (2), body (3), guide cutting device (4), cutter (5), cutter edge cutting seat (6), power device (1) is provided with reduction gear box (2) and body (3), body (3) is provided with guide cutting device (4), guide cutting device (4) is provided with cutter (5), the front end of body (3) is integrally provided with cutter edge cutting seat (6); The body (3) is composed of a first casing (301) and a second casing (302), the first casing (301) is fixedly connected with the second casing (302) through a plurality of large screws (303), a guide connecting limiting rod (3021) is fixedly arranged in the front of the connecting cavity of the second casing (302), a connecting hole (3022) is arranged on the inner side of the guide connecting limiting rod (3021), guide column holes (3023) are arranged on the left and right sides of the front of the connecting cavity of the second casing (302), and the guide cutting device (4) is arranged in the connecting cavity of the second casing (302). The guide cutting device (4) is composed of a guide column (401), a guide column (402), a transmission screw (403) and a driving seat (404), the center of the driving seat (404) is provided with an internal thread hole (4041), the left and right sides of the driving seat (404) are provided with a guide hole (4042) and a guide hole (4043), the internal thread hole (4041) is provided with the transmission screw (403), the guide hole (4042) and the guide hole (4043) are provided with the guide column (401) and the guide column (402) respectively, the guide column (401) and the guide column (402) are arranged on the left and right sides of the transmission screw (403), and the front and rear ends of the guide column (401) and the guide column (402) are fixedly arranged on the guide column holes (3023) on the left and right sides of the front of the connecting cavity of the second casing (302) and the guide column holes (201) and the guide column holes (202) on the reduction gear box (2).

2. A hand-held electric pipe cutting machine guided cutting device according to claim 1, characterized in that: The left and right sides of the upper part of the driving seat (404) are provided with a positioning hole (4044) and a positioning hole (4045), the left and right ends of the cutter (5) are provided with a positioning hole (501) and a positioning hole (502), the cutter (5) is arranged in the connecting groove on the left and right sides of the upper part of the driving seat (404) and is fixedly connected through a small screw (503), the center of the cutter (5) is designed as a guide straight slot through hole, and is matched with the transmission screw (403) in the connecting cavity of the second casing (302), and the cutting edge of the cutter (5) is designed as a triangular structure.

3. A hand-held electric pipe cutting machine guided cutting device according to claim 1, characterized in that: The reduction gear box (2) is provided with a reduction gear set (203) and a reduction gear ring (204), the reduction gear set (203) and the reduction gear ring (204) are meshed with each other, the upper and lower ends of the reduction gear set (203) are provided with a bearing (205) and a bearing (206), and the bearing (205) is provided with a bearing square hole (2051).

4. A guided cutting device for a hand-held electric pipe cutting machine according to claim 1, characterized in that: The front of the transmission screw (403) adopts a cylindrical structure design, is sleeved with a wear-resistant sleeve (4031), and is arranged in a connecting hole (3022) in the center of the guide connecting limiting rod (3021); the rear of the transmission screw (403) adopts a flat square structure design and is inserted into a bearing square hole (2051) of the speed reducer gear box (2).

5. A hand-held electric pipe cutting machine guided cutting device according to claim 1, characterized in that: The power device (1) is provided with a motor output shaft (101), the motor output shaft (101) is provided with a sun gear (102), and is engaged with a speed reduction gear set (203) in the speed reducer gear box (2).

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