Beam lower pipe head fixed-length cutting device

Abstract

The utility model discloses a beam lower pipe head fixed-length cutting device, which belongs to the technical field of building production and is characterized in that an inner rod is slidably connected in a telescopic outer rod, a side handle is fixedly mounted on the side surface of the telescopic outer rod, a switch button is mounted on the front surface of the side handle, and a movable grip is slidably connected to the outer part of the bottom end of the telescopic outer rod in a nested manner; an air balance linkage assembly is arranged in the movable grip, a protection cavity is formed in the upper portion of the inner rod, a cutting mechanism capable of cutting a pipe head is arranged in the protection cavity, and a turning plate is rotationally connected to the bottom of the protection cavity. The connection between the air cavity and the air cylinder is utilized, the driving motor and the cutting blade are pushed by air to move and cut, when the movable grip is loosened, the driving motor and the cutting blade can return, and the switch button is arranged on the side handle, so that during use, no matter which hand leaves, operation cannot be performed, and the whole device is convenient to use when being used. The safety is higher, and accidents are avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of building production, and particularly relates to a device for cutting the pipe head under the beam to a fixed length. Background Technique

[0002] A wire pipe, also known as an electrical conduit, is a pipe system used for laying and protecting electric wires and cables. It organizes, protects, and guides the electric wires and cables, while providing physical support and isolation, thereby ensuring the safe and reliable operation of the electrical system. Wire pipes usually have a variety of different materials and designs to adapt to various application requirements and environmental conditions. For example, PVC wire pipes are mainly made of polyvinyl chloride and have the characteristics of corrosion resistance and leakage prevention, and are commonly used in building electrical wiring.

[0003] During building construction, it is necessary to embed the wire pipes first and then formwork and pour. During this period, due to the thickness of the pouring and the thickness of the formwork, the length of the end of the wire pipe is generally reserved longer. Therefore, after the building is poured and shaped, the excess pipe heads need to be cut to ensure subsequent electrical wiring construction, and at the same time, it is more neat and beautiful, which is convenient for construction acceptance.

[0004] The existing cutting method is that the worker steps on the support frame and holds a angle grinder or pliers to cut. Its working efficiency is not bad, but the wire pipes are widely distributed. To move the support frame along with the wiring points, two people need to cooperate. Based on this requirement, it is urgent to design a device that can cut the pipe heads by one person, which needs to improve the working efficiency, be more labor-saving, and eliminate the safety hazards brought by the cutting disc. Content of the Utility Model

[0005] The purpose of the utility model is to provide a device for cutting the pipe head under the beam to a fixed length to solve the above problems.

[0006] The technical scheme adopted by the utility model is as follows: A device for cutting the pipe head under the beam to a fixed length, characterized in that: an inner rod is slidably connected inside the telescopic outer rod, a side handle is fixedly installed on the side of the telescopic outer rod, a switch button is installed on the front of the side handle, an activity grip is nested and slidably connected to the outside of the bottom end of the telescopic outer rod, and an air balance linkage component is arranged inside the activity grip;

[0007] There is a protection cavity on the upper part of the inner rod, and a cutting mechanism for cutting the pipe head is arranged inside the protection cavity;

[0008] The bottom of the protection cavity is rotatably connected with a flap, and the flap is installed with bolts on the side edge of the protection cavity. The end of the inner rod is rotatably connected to the bottom of the flap, and spring telescopic rods are rotatably connected to both sides of the inner rod. The other end of the spring telescopic rod is rotatably connected to the flap; the two spring telescopic rods are symmetrically arranged;

[0009] The air balance linkage assembly includes: a driving piston, a spring, and an air chamber. The bottom end of the telescopic outer rod is embedded with the air chamber. The driving piston is slidably connected inside the air chamber, and the driving piston is fixedly installed with the movable grip through a piston rod. A spring is connected between the movable grip and the opening edge of the air chamber.

[0010] The cutting mechanism includes: a linear guide rail, a slider, a guiding opening, a driving motor, a cutting blade, a cylinder, and a driven piston. Above the inner part of the protective chamber, a linear guide rail is fixedly installed through a bracket. A slider is arranged in a matching manner on the linear guide rail. The bottom of the slider is fixedly installed with a driving motor through a bracket. The end of the output shaft of the driving motor is installed with a cutting blade.

[0011] A cylinder is installed through a bracket on one side of the inner part of the protective chamber close to the linear guide rail. A driven piston is arranged in a matching manner inside the cylinder. The driven piston is connected with the slider through a piston rod.

[0012] A fixed-length component for adjusting the cutting pipe height is arranged at the top of the protective chamber.

[0013] Among them, the fixed-length component includes a pulley, a height-fixing rod, a positioning pin, and a height-fixing frame. Four height-fixing frames are fixedly installed at the top of the protective chamber. The height-fixing rod is slidably connected inside the height-fixing frame. The top of the height-fixing rod is rotatably connected with a pulley. A groove is arranged along the side of the height-fixing rod. The positioning pin is connected through a spring inside the groove. A positioning hole that fits the positioning pin is opened on the surface of the height-fixing frame.

[0014] Among them, both the side of the air chamber and the tail of the cylinder are embedded with air pipe connectors, and the air pipe connectors are connected through an air pipe.

[0015] Among them, a guiding opening is arranged at the upper part of one side of the protective chamber, and the central axis of the guiding opening is on the same straight line as the axis of the cutting blade.

[0016] Among them, the telescopic outer rod and the inner rod are positioned and connected through bolts.

[0017] To sum up, due to adopting the above technical solutions, the beneficial effects of the present utility model are:

[0018] 1. In the present utility model, when holding the side handle with one hand and the movable grip with the other hand, the device can be driven to move. At the same time, the design of the side handle, combined with the pulley, can roll on the roof, making it more labor-saving for the user to hold.

[0019] 2. In the present utility model, by utilizing the connection between the air chamber and the air cylinder, the driving motor and the cutting blade are moved and cut by the gas. When the movable grip is released, the driving motor and the cutting blade can return to their original positions. The switch button is designed on the side handle. Therefore, during use, no matter which hand is removed, the operation cannot be carried out, making the whole device safer during use and avoiding accidents.

[0020] 3. In the present utility model, a guiding opening is provided at the upper side opening of one side of the protective chamber. The central axis of the guiding opening is on the same straight line as the axis of the cutting blade. When the pulley auxiliary device is pushed to move, the guiding opening can fit with the wire pipe to achieve the purpose of positioning and improve the cutting efficiency. Description of the Drawings

[0021] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0022] Figure 2 is a schematic diagram of the partial structure of the present utility model;

[0023] Figure 3 is a schematic diagram of the structure at the side handle of the present utility model;

[0024] Figure 4 is a three-dimensional structure schematic diagram of the protective chamber of the present utility model;

[0025] Figure 5 In the present utility model Figure 2 is an enlarged schematic diagram of the structure at position A;

[0026] Figure 6 In the present utility model Figure 1 is an enlarged schematic diagram of the structure at position B.

[0027] Reference numerals in the figures: 1. Telescopic outer rod; 101. Inner rod; 102. Side handle; 1021. Switch button; 103. Movable grip; 1031. Active piston; 1032. Spring; 104. Air chamber; 2. Spring telescopic rod; 3. Protective chamber; 301. Flap; 302. Linear guide rail; 3021. Slide block; 303. Guiding opening; 4. Pulley; 401. Fixed-height rod; 4011. Positioning pin; 402. Fixed-height frame; 5. Driving motor; 501. Cutting blade; 6. Air cylinder; 601. Passive piston. Detailed Embodiments

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0029] In the present utility model:

[0030] Referring to Figures 1-5 , a device for cutting the pipe head under the beam with a fixed length, an inner rod 101 is slidably connected inside a telescopic outer rod 1. A side handle 102 is fixedly installed on the side of the telescopic outer rod 1. A switch button 1021 is installed on the front of the side handle 102. The side handle 102 provided on the side can bring the advantage of more labor-saving to the user. The user can hold the side handle 102 with one hand and the movable grip 103 with the other hand. The movable grip 103 is nested and slidably connected to the outside of the bottom end of the telescopic outer rod 1. An air balance linkage assembly is provided inside the movable grip 103;

[0031] There is a protection cavity 3 in the upper part of the inner rod 101, and a cutting mechanism for cutting the pipe head is provided inside the protection cavity 3;

[0032] Referring to Figure 1 、 3 A flap 301 is rotatably connected to the bottom of the protection cavity 3, and the flap 301 is installed on the side edge of the protection cavity 3 through bolts. The end of the inner rod 101 is rotatably connected to the bottom of the flap 301, and spring telescopic rods 2 are rotatably connected to both sides of the inner rod 101. The other end of the spring telescopic rod 2 is rotatably connected to the flap 301. The two spring telescopic rods 2 are symmetrically arranged; when the user holds the telescopic outer rod 1 by hand, the pulley 4 fits with the roof, and the spring telescopic rod 2 can make the inner rod 101 tilt at a certain angle with the protection cavity 3, which is more convenient for the user to observe.

[0033] Referring to Figure 2 、 6The air balance linkage assembly includes: a driving piston 1031, a spring 1032, and an air chamber 104. The bottom end of the telescopic outer rod 1 is embedded with the air chamber 104. The driving piston 1031 is slidably connected inside the air chamber 104, and the driving piston 1031 is fixedly installed with the movable grip 103 through a piston rod. A spring 1032 is connected between the movable grip 103 and the opening edge of the air chamber 104. When the user pushes the movable grip 103, the movable grip 103 drives the driving piston 1031 to move inside the air chamber 104, pressing out the gas inside the air chamber 104. The gas enters the cylinder 6 through a pipeline, pushing the driven piston 601 to move. When the user releases the movable grip 103, the movable grip 103 returns to its original position under the action of the spring 1032, and the driving piston 1031 sucks the gas inside the cylinder 6 through the pipeline, causing the driven piston 601 to return to its original position.

[0034] Refer to Figure 1 , 2 , the cutting mechanism includes: a linear guide rail 302, a slider 3021, a guiding opening 303, a driving motor 5, a cutting blade 501, a cylinder 6, and a driven piston 601. The linear guide rail 302 is fixedly installed above the inside of the protection chamber 3 through a bracket. A slider 3021 is arranged on the linear guide rail 302 in a matching manner. The driving motor 5 is fixedly installed at the bottom of the slider 3021 through a bracket, and the cutting blade 501 is installed at the end of the output shaft of the driving motor 5.

[0035] Refer to Figure 2 , a cylinder 6 is installed on one side of the inside of the protection chamber 3 close to the linear guide rail 302 through a bracket, and a driven piston 601 is arranged inside the cylinder 6 in a matching manner. Pipe connectors are embedded on the side of the air chamber 104 and the tail of the cylinder 6, and the pipe connectors are connected by a trachea. When the gas inside the air chamber 104 is pressed out, the gas enters the cylinder 6 through a pipeline, pushing the driven piston 601 to move. The driven piston 601 is connected to the slider 3021 through a piston rod, so that the slider 3021 drives the driving motor 5 and the cutting blade 501 to move to cut the pipe head.

[0036] Similarly, when the movable grip 103 returns to its original position under the action of the spring 1032, the driving piston 1031 sucks the gas inside the cylinder 6 through the pipeline, and the return of the driven piston 601 drives the slider 3021 to drive the driving motor 5 and the cutting blade 501 to retract into the protection chamber 3, improving the safety of the device during use.

[0037] A fixed-length component for adjusting the cutting pipe height is arranged at the top of the protection chamber 3.

[0038] Refer to Figure 5, preferably, the fixed-length component includes a pulley 4, a fixed-height rod 401, a positioning pin 4011, and a fixed-height frame 402. The fixed-height frame 402 is fixedly installed at the top of the protection cavity 3, and the number is four. The fixed-height rod 401 is slidably connected inside the fixed-height frame 402. The top of the fixed-height rod 401 is rotatably connected to the pulley 4. A groove is provided along the side of the fixed-height rod 401, and the positioning pin 4011 is connected inside the groove through a spring. An alignment hole that fits with the positioning pin 4011 is opened on the surface of the fixed-height frame 402. By connecting the positioning pin 4011 with alignment holes at different heights on the surface of the fixed-height frame 402, the pulley 4 can be raised or lowered, so that the horizontal height between the cutting blade 501 and the roof changes.

[0039] Preferably, a guiding opening 303 is provided at the upper side of one side of the protection cavity 3. The central axis of the guiding opening 303 is on the same straight line as the axis of the cutting blade 501. When the pulley 4 is pushed to assist the movement of the device, the guiding opening 303 can fit with the wire pipe to achieve the purpose of positioning and improve the cutting efficiency.

[0040] Preferably, the telescopic outer rod 1 and the inner rod 101 are positioned and connected by bolts. The bolts can be used to control the total length of the telescopic outer rod 1 and the inner rod 101, so that the inner rod 101 can be retracted under normal conditions.

[0041] Preferably, the driving motor 5 is connected to the lithium battery through the switch button 1021.

[0042] Working principle: First, pull the inner rod 101 out of the telescopic outer rod 1 and position it with bolts. Then, connect it to the positioning holes at different heights on the surface of the fixed elevated frame 402 through the positioning pins 4011, so as to raise or lower the pulley 4, causing a change in the horizontal height between the cutting blade 501 and the roof. Next, the user can hold the side handle 102 with one hand and the movable handle 103 with the other hand, making the pulley 4 contact the roof, and pushing the pulley 4 to drive the protective cavity 3 to move. At this time, when pushing the pulley 4 to assist the device to move, the guiding opening 303 can fit with the wire pipe to achieve the positioning purpose. The user pushes the movable handle 103, and the movable handle 103 drives the active piston 1031 to move inside the air cavity 104, pressing out the gas inside the air cavity 104. The gas enters the cylinder 6 through the pipeline, pushing the passive piston 601 to move. The passive piston 601 is connected to the slider 3021 through the piston rod, so that the slider 3021 drives the driving motor 5 and the cutting blade 501 to move to cut the pipe head. When the user releases the movable handle 103, the movable handle 103 returns to its original position under the action of the spring 1032. The active piston 1031 sucks the gas in the cylinder 6 through the pipeline again, causing the passive piston 601 to return to its original position. The active piston 1031 sucks the gas in the cylinder 6 through the pipeline again, and the return of the passive piston 601 drives the slider 3021 to drive the driving motor 5 and the cutting blade 501 to retract into the protective cavity 3, improving the safety of the device during use.

[0043] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A device for cutting the pipe head under the beam to a fixed length, characterized in that: An inner rod (101) is slidably connected inside the telescopic outer rod (1). A side handle (102) is fixedly installed on the side of the telescopic outer rod (1). A switch button (1021) is installed on the front of the side handle (102). An active grip (103) is nested and slidably connected to the outside of the bottom end of the telescopic outer rod (1). An air balance linkage assembly is arranged inside the active grip (103). There is a protective cavity (3) in the upper part of the inner rod (101). A cutting mechanism capable of cutting the pipe head is arranged inside the protective cavity (3). A flap (301) is rotatably connected to the bottom of the protective cavity (3), and the flap (301) is installed with bolts along the side edge of the protective cavity (3). The end of the inner rod (101) is rotatably connected to the bottom of the flap (301), and spring telescopic rods (2) are rotatably connected to both sides of the inner rod (101). The other ends of the spring telescopic rods (2) are rotatably connected to the flap (301). The air balance linkage assembly includes: a main piston (1031), a spring (1032), and an air cavity (104). The air cavity (104) is embedded at the bottom end of the telescopic outer rod (1). A main piston (1031) is slidably connected inside the air cavity (104), and the main piston (1031) is fixedly installed with the active grip (103) through a piston rod. A spring (1032) is connected between the active grip (103) and the opening edge of the air cavity (104). The cutting mechanism includes: a linear guide rail (302), a slider (3021), a guiding opening (303), a driving motor (5), a cutting blade (501), a cylinder (6), and a passive piston (601). The linear guide rail (302) is fixedly installed above the inside of the protective cavity (3) through a bracket. The slider (3021) is arranged in a matching manner on the linear guide rail (302). The driving motor (5) is fixedly installed at the bottom of the slider (3021) through a bracket. The cutting blade (501) is installed at the end of the output shaft of the driving motor (5). A cylinder (6) is installed through a bracket on one side of the protective cavity (3) close to the linear guide rail (302). A passive piston (601) is arranged in a matching manner inside the cylinder (6). A fixed-length component for adjusting the cutting pipe height is arranged at the top of the protective cavity (3).

2. The fixed-length cutting device for the pipe head under the beam according to claim 1, wherein: The fixed-length component includes a pulley (4), a fixed-height rod (401), a positioning pin (4011), and a fixed-height frame (402). Four fixed-height frames (402) are fixedly installed at the top of the protective cavity (3). The fixed-height rod (401) is slidably connected inside the fixed-height frame (402). The pulley (4) is rotatably connected to the top of the fixed-height rod (401). A groove is arranged along the side edge of the fixed-height rod (401), and the positioning pin (4011) is connected through a spring inside the groove. A positioning hole matching the positioning pin (4011) is opened on the surface of the fixed-height frame (402).

3. The fixed-length cutting device for the pipe head under the beam according to claim 1, characterized in that: The passive piston (601) is connected to the slider (3021) through a piston rod.

4. The fixed-length cutting device for the pipe head under the beam according to claim 1, characterized in that: Air pipe joints are embedded on the side of the air cavity (104) and the tail of the cylinder (6), and the air pipe joints are connected through an air pipe.

5. The fixed-length cutting device for the pipe head under the beam according to claim 1, characterized in that: A guiding opening (303) is arranged at the upper side of one side of the protection cavity (3), and the central axis of the guiding opening (303) is on the same straight line as the axis of the cutting disc (501).

6. The fixed-length cutting device for the pipe head under the beam according to claim 1, characterized in that: The telescopic outer rod (1) and the inner rod (101) are positioned and connected by bolts.

7. The fixed-length cutting device for the pipe head under the beam according to claim 1, wherein: The two spring telescopic rods (2) are symmetrically arranged.

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