A cutting device for construction steel

Abstract

The present invention relates to a cutting device for construction steel, comprising a workbench, on which a cutting device and a fixing device for fixing steel parts are installed, a liquid inlet pipe is installed above the workbench at the front end of the cutting device, and a first nozzle is installed on the liquid inlet pipe; and a second nozzle is also included, the second nozzle is arranged close to the cutting device and can be selectively connected to the liquid inlet pipe. When the cutting device for construction steel of the present invention is used, the steel parts are fixed on the workbench by the fixing device, and the cutting device is started to perform cutting operations. During the cutting operation, water can be sprayed in front of the cutting device by the first nozzle to extinguish sparks generated by cutting to prevent sparks from causing fires; in addition, the second nozzle can be selectively used to cool the cutting device, which is conducive to the long-term operation of the cutting device.

Description

Technical Field

[0001] The invention relates to the technical field of construction machinery and equipment, in particular to a cutting device for construction steel. Background Art

[0002] During construction, steel pipes, channel steels and other steel parts are often cut. Existing cutting devices will generate a lot of sparks during the cutting process, which may cause fire. People have been studying how to solve this problem. Summary of the invention

[0003] In view of the above problems existing in the prior art, the present invention provides a cutting device for construction steel to solve the above technical problems.

[0004] In order to achieve the above-mentioned object of the invention, a technical solution provided by the present invention is as follows:

[0005] A cutting device for construction steel comprises a workbench on which a cutting device and a fixing device for fixing steel parts are installed, a liquid inlet pipe is installed above the workbench at the front end of the cutting device, and a first nozzle is installed on the liquid inlet pipe; and a second nozzle is also included, which is arranged close to the cutting device and can be selectively connected to the liquid inlet pipe.

[0006] Preferably, the liquid inlet pipe is connected to a bypass pipe, and the bypass pipe is connected to a second nozzle mounting pipe at a position close to the liquid inlet pipe, and the second nozzle is mounted on the second nozzle mounting pipe; a first valve is arranged on the bypass pipe, and the bypass pipe is connected to a third nozzle mounting pipe between the first valve and the second nozzle mounting pipe, and the third nozzle mounting pipe is mounted with a third nozzle and a second valve; a piston and a spring are arranged in the bypass pipe, and the piston is arranged close to the liquid inlet pipe, one end of the spring is connected to the piston, and the other end is connected to the bypass pipe, and the connection position is located between the third nozzle mounting pipe and the first valve; when the piston is against the liquid inlet pipe, the piston cuts off the connection between the liquid inlet pipe and the bypass pipe and cuts off the connection between the bypass pipe and the second nozzle mounting pipe; when the piston is at an extreme position away from the liquid inlet pipe, the piston is located on a side of the third nozzle mounting pipe away from the liquid inlet pipe.

[0007] Preferably, the liquid inlet pipe is connected to a bypass pipe, a first valve is provided on the bypass pipe, the bypass pipe is connected to a third nozzle mounting pipe between the first valve and the liquid inlet pipe, a third nozzle and a second valve are installed on the third nozzle mounting pipe; the third nozzle mounting pipe is connected to the second nozzle mounting pipe, the second nozzle is installed on the second nozzle mounting pipe, and the connection position between the third nozzle mounting pipe and the second nozzle is located between the second valve and the third nozzle; a piston and a spring are provided in the bypass pipe, the piston is arranged close to the liquid inlet pipe, one end of the spring is connected to the piston, and the other end is connected to the bypass pipe, and the connection position is located between the third nozzle mounting pipe and the first valve; when the piston is against the liquid inlet pipe, the piston cuts off the connection between the liquid inlet pipe and the bypass pipe; when the piston is at the extreme position away from the liquid inlet pipe, the piston is located on the side of the third nozzle mounting pipe away from the liquid inlet pipe.

[0008] Preferably, the liquid inlet pipe is connected to a bypass pipe, a first valve is provided on the bypass pipe, a second nozzle mounting pipe and a third nozzle mounting pipe are connected to the bypass pipe between the first valve and the liquid inlet pipe, the connection position of the second nozzle mounting pipe and the bypass pipe is close to the liquid inlet pipe relative to the third nozzle mounting pipe, a third nozzle and a second valve are mounted on the third nozzle mounting pipe, the second nozzle is mounted on the second nozzle mounting pipe, and the third valve is mounted on the second nozzle mounting pipe; a piston and a spring are provided in the bypass pipe, the piston is arranged close to the liquid inlet pipe, one end of the spring is connected to the piston, and the other end is connected to the bypass pipe, and the connection position is located between the third nozzle mounting pipe and the first valve; when the piston is against the liquid inlet pipe, the piston cuts off the connection between the liquid inlet pipe and the bypass pipe; when the piston is at an extreme position away from the liquid inlet pipe, the piston is located on a side of the third nozzle mounting pipe away from the liquid inlet pipe.

[0009] Preferably, a fourth valve is installed on the liquid inlet pipe.

[0010] Preferably, a guide hole is provided on the workbench, a water storage box connected with the guide hole is provided below the workbench, a drain pipe is provided at the bottom of the water storage box, and a fifth valve is installed on the drain pipe.

[0011] Preferably, a bracket is fixed on the workbench, an electric hydraulic cylinder is installed on the top surface of the bracket, a motor is installed at the power output end of the electric hydraulic cylinder, and a saw blade is installed at the power output end of the motor.

[0012] Preferably, the fixing device includes a fixing seat, the fixing seat is fixed on the workbench, a receiving groove is transversely arranged on the fixing seat, a threaded hole connected to the receiving groove is arranged at the top of the fixing seat, and a handle screw matching the threaded hole is arranged on the fixing seat.

[0013] Preferably, there are two fixing devices, and the cutting device is located between the two fixing devices.

[0014] When the cutting device for construction steel of the present invention is used, the steel piece is fixed on the workbench by the fixing device, and the cutting device is started to perform cutting operation. During the cutting operation, water can be sprayed in front of the cutting device through the first nozzle to extinguish the sparks generated by the cutting and prevent the sparks from causing fire; in addition, the second nozzle can be selectively used to cool the cutting device, which is conducive to long-term operation of the cutting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic structural diagram of a cutting device for construction steel according to the present invention is shown;

[0016] Figure 2 In Example 1, Figure 1 Right view of;

[0017] Figure 3 Shows Figure 2 Enlarged view at A

[0018] Figure 4 In Example 2, Figure 1 Right view of;

[0019] Figure 5 In Example 2, Figure 1 Right view of;

[0020] Markings in the accompanying drawings:

[0021] Workbench 1, cutting device 2, fixing device 3, liquid inlet pipe 4, first nozzle 5, second nozzle 6, bypass pipe 7, second nozzle mounting pipe 8, first valve 9, third nozzle mounting pipe 10, third nozzle 11, second valve 12, piston 13, spring 14, third valve 15, fourth valve 16, diversion hole 17, water storage box 18, drain pipe 19, fifth valve 20, bracket 21;

[0022] Electric hydraulic cylinder 2-1, motor 2-2, saw blade 2-3;

[0023] Fixed seat 3-1, receiving slot 3-2, handle screw 3-3. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] Example 1, please refer to Figure 1-Figure 3 , the present embodiment provides a cutting device for construction steel, including a workbench 1, a bracket 21 is fixed on the workbench, an electric hydraulic cylinder 2-1 is installed on the top surface of the bracket, a motor 2-2 is installed at the power output end of the electric hydraulic cylinder, a saw blade 2-3 is installed at the power output end of the motor, the electric hydraulic cylinder, the motor and the saw blade form a cutting device 2, when in use, the motor drives the saw blade to rotate, and the electric hydraulic cylinder drives the saw blade to rise and fall to achieve the cutting of steel parts; the fixing device includes a fixing seat 3-1, the fixing seat is fixed on the workbench, a receiving groove 3-2 is horizontally arranged on the fixing seat, a threaded hole connected to the receiving groove is arranged at the top of the fixing seat, a handle screw 3-3 matched with the threaded hole is arranged on the fixing seat, the fixing seat structure and the handle screw form a fixing device 3, generally, there are two fixing devices, and the cutting device is located between the two fixing devices, so that when in use, the steel part can be fixed by tightening the handle screw after passing the steel part through the receiving groove, and the steel part is fixed on both sides of the cutting device during cutting, which is beneficial to the cutting of the steel part; the working A liquid inlet pipe is installed at the front end of the cutting device above the table, and a first nozzle 5 is installed on the liquid inlet pipe 4; the liquid inlet pipe is connected to a bypass pipe 7, and a second nozzle mounting pipe 8 is connected to the bypass pipe near the liquid inlet pipe, and a second nozzle 6 is installed on the second nozzle mounting pipe, and the second nozzle is arranged near the cutting device; a first valve 9 is arranged on the bypass pipe, and a third nozzle mounting pipe 10 is connected to the bypass pipe between the first valve and the second nozzle mounting pipe, and a third nozzle is installed on the third nozzle mounting pipe. 11 and the second valve 12; a piston 13 and a spring 14 are arranged in the bypass pipe, the piston is arranged close to the liquid inlet pipe, one end of the spring is connected to the piston, and the other end is connected to the bypass pipe, and the connection position is located between the third nozzle mounting pipe and the first valve; when the piston is against the liquid inlet pipe, the piston cuts off the connection between the liquid inlet pipe and the bypass pipe and cuts off the connection between the bypass pipe and the second nozzle mounting pipe; when the piston is at the extreme position away from the liquid inlet pipe, the piston is located on the side of the third nozzle mounting pipe away from the liquid inlet pipe.

[0026] The above-mentioned cutting device for building steel is used as follows: Figure 2 and Figure 3Before cutting the steel part, open the first valve, supply high-pressure gas to the bypass pipe, so that the piston is against the liquid inlet pipe, and close the first valve; supply water to the first nozzle through the liquid inlet pipe, so that the first nozzle sprays water in front of the cutting device to extinguish the sparks generated by the cutting; when it is necessary to cool the saw blade, open the second valve, the high-pressure water in the liquid inlet pipe compresses the piston to move the piston to the right, the high-pressure water enters the second nozzle installation pipe through the bypass pipe, and the second nozzle sprays water at the saw blade to cool the saw blade; when the spark is large, the pressure of the high-pressure water can be increased to move the piston to the right to the extreme position, the bypass pipe is connected to the third nozzle installation pipe, and the first nozzle, the second nozzle and the third nozzle spray water at the same time; when the cutting operation is completed, the water supply to the liquid inlet pipe can be disconnected, the first valve and the second valve are opened, and the bypass pipe is supplied with air. Under the action of the spring and the air pressure, the piston returns to its original position, and the third nozzle sprays air downward to dry the steel part after cutting.

[0027] Example 2, please refer to Figure 1 and Figure 4 The structure of embodiment 2 is substantially the same as that of embodiment 1, except that the bypass pipe is arranged between the first valve and the liquid inlet pipe, the second nozzle mounting pipe 8 is connected to the third nozzle connecting pipe, and the connection position between the third nozzle mounting pipe and the second nozzle is located between the second valve and the third nozzle;

[0028] The method of using the cutting device for building steel is as follows: Figure 4 Before cutting the steel parts, open the first valve, supply high-pressure gas to the bypass pipe, so that the piston is against the liquid inlet pipe, and close the first valve; supply water to the first nozzle through the liquid inlet pipe, so that the first nozzle sprays water in front of the cutting device to extinguish the sparks generated by the cutting; when the saw blade needs to be cooled, there are two ways: one way is to open the second valve, the high-pressure water in the liquid inlet pipe compresses the piston to move the piston to the right, and the high-pressure water enters the second nozzle mounting pipe and the third nozzle mounting pipe through the bypass pipe. The second nozzle sprays water at the saw blade to cool the saw blade, and the third nozzle assists the first nozzle to extinguish the sparks; the other way is to open the first valve, supply high-pressure gas to the bypass pipe, and open the second valve at the same time. The second nozzle sprays water at the saw blade to cool the saw blade, and the third nozzle sprays water downward to dry the steel parts after cutting.

[0029] Example 3, please refer to Figure 1 and Figure 5The structure of Example 3 is substantially the same as that of Example 2, except that the bypass pipe is connected with a second nozzle mounting pipe 8 and a third nozzle mounting pipe 10 between the first valve and the liquid inlet pipe, the connection position of the second nozzle mounting pipe and the bypass pipe is close to the liquid inlet pipe relative to the third nozzle mounting pipe, and the second nozzle mounting pipe is installed with a third valve 15; when the piston is against the liquid inlet pipe, the piston cuts off the connection between the liquid inlet pipe and the bypass pipe; when the piston is at the extreme position away from the liquid inlet pipe, the piston is located on the side of the third nozzle mounting pipe away from the liquid inlet pipe.

[0030] The above-mentioned cutting device for building steel is used as follows: Figure 5 Before cutting the steel parts, open the first valve, supply high-pressure gas to the bypass pipe, so that the piston is against the liquid inlet pipe, and close the first valve; supply water to the first nozzle through the liquid inlet pipe, so that the first nozzle sprays water in front of the cutting device to extinguish the sparks generated by the cutting; when the saw blade needs to be cooled, there are two ways: one way is to open the third valve, the high-pressure water in the liquid inlet pipe compresses the piston to move the piston to the right, and the high-pressure water enters the second nozzle installation pipe through the bypass pipe, and the second nozzle sprays water at the saw blade to cool the saw blade; the other way is to open the first valve, supply high-pressure gas to the bypass pipe, and open the third valve at the same time. Valve, the second nozzle sprays air at the saw blade to cool the saw blade. If the steel needs to be dried at this time, open the second valve, and the third nozzle sprays air downward to dry the steel after cutting; when the spark is large, open the second valve to increase the pressure of the high-pressure water so that the piston moves to the right to the extreme position, the bypass pipe is connected to the third nozzle installation pipe, and the first nozzle and the third nozzle spray water at the same time; when the cutting operation is completed, the water supply to the liquid inlet pipe can be disconnected, open the first valve and the second valve, supply air to the bypass pipe, and the piston returns to its original position under the action of the spring and air pressure, and the third nozzle sprays air downward to dry the steel after cutting.

[0031] For convenient control, a fourth valve 16 is installed on the liquid inlet pipe to control whether water flows into the liquid inlet pipe. The first, second and third nozzles can use existing structures, such as a shower head or a rotating nozzle, and the first, second, third, fourth and fifth valves can use solenoid valves.

[0032] In order to collect the sprayed water conveniently, the workbench is provided with a diversion hole 17, and a water storage box 18 connected with the diversion hole is provided below the workbench. A drainage pipe 19 is provided at the bottom of the water storage box, and a fifth valve 20 is installed on the drainage pipe. In this way, the sprayed water will flow into the water storage box along the diversion hole, and when the water storage box is full, it can be discharged to a designated place through the drainage pipe.

[0033] It should be noted that the phrases "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments", etc. mentioned in the specification indicate that the described embodiments may include certain features, structures or characteristics, but not every embodiment may include the certain features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing certain features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments, whether explicitly or not explicitly described.

[0034] It should be easily understood that “on,” “above,” and “over” in the present disclosure should be interpreted in the broadest manner, so that “on” not only means “directly on something,” but also includes the meaning of “on something” with intervening features or layers therebetween, and “above” or “over” not only includes the meaning of “above” or “over,” but also may include the meaning of “above” or “over something” with no intervening features or layers therebetween (i.e., directly on something).

[0035] In addition, spatially relative terms, such as "below," "below," "beneath," "above," "above," etc., may be used herein for ease of description to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein may likewise be interpreted accordingly.

[0036] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cutting device for construction steel, comprising a workbench (1), on which a cutting device (2) and a fixing device (3) for fixing steel parts are mounted, characterized in that: A liquid inlet pipe is installed above the workbench at the front end of the cutting device, and a first nozzle (5) is installed on the liquid inlet pipe (4); It also includes a second nozzle (6), which is arranged close to the cutting device and can be selectively connected to the liquid inlet pipe; The liquid inlet pipe is connected to a bypass pipe (7), a position of the bypass pipe close to the liquid inlet pipe is connected to a second nozzle mounting pipe (8), and the second nozzle is mounted on the second nozzle mounting pipe; The bypass pipe is provided with a first valve (9), the bypass pipe is connected to a third nozzle mounting pipe (10) between the first valve and the second nozzle mounting pipe, and the third nozzle mounting pipe is mounted with a third nozzle (11) and a second valve (12); A piston (13) and a spring (14) are arranged in the bypass pipe, the piston is arranged close to the liquid inlet pipe, one end of the spring is connected to the piston, and the other end is connected to the bypass pipe, and the connection position is located between the third nozzle installation pipe and the first valve; When the piston abuts against the liquid inlet pipe, the piston cuts off the connection between the liquid inlet pipe and the bypass pipe and cuts off the connection between the bypass pipe and the second nozzle installation pipe; When the piston is at the extreme position away from the liquid inlet pipe, the piston is located at a side of the third nozzle mounting tube away from the liquid inlet pipe.

2. A cutting device for construction steel, comprising a workbench (1), on which a cutting device (2) and a fixing device (3) for fixing steel parts are mounted, characterized in that: A liquid inlet pipe is installed above the workbench at the front end of the cutting device, and a first nozzle (5) is installed on the liquid inlet pipe (4); It also includes a second nozzle (6), which is arranged close to the cutting device and can be selectively connected to the liquid inlet pipe; The liquid inlet pipe is connected to a bypass pipe (7), a first valve (9) is arranged on the bypass pipe, the bypass pipe is connected to a third nozzle mounting pipe (10) between the first valve and the liquid inlet pipe, a third nozzle (11) and a second valve (12) are mounted on the third nozzle mounting pipe; The third nozzle mounting pipe is connected to the second nozzle mounting pipe (8), the second nozzle is mounted on the second nozzle mounting pipe, and the connection position between the third nozzle mounting pipe and the second nozzle is located between the second valve and the third nozzle; A piston (13) and a spring (14) are arranged in the bypass pipe, the piston is arranged close to the liquid inlet pipe, one end of the spring is connected to the piston, and the other end is connected to the bypass pipe, and the connection position is located between the third nozzle installation pipe and the first valve; When the piston abuts against the liquid inlet pipe, the piston cuts off the connection between the liquid inlet pipe and the bypass pipe; When the piston is at the extreme position away from the liquid inlet pipe, the piston is located at a side of the third nozzle mounting tube away from the liquid inlet pipe.

3. A cutting device for construction steel, comprising a workbench (1), on which a cutting device (2) and a fixing device (3) for fixing steel parts are mounted, characterized in that: A liquid inlet pipe is installed above the workbench at the front end of the cutting device, and a first nozzle (5) is installed on the liquid inlet pipe (4); It also includes a second nozzle (6), which is arranged close to the cutting device and can be selectively connected to the liquid inlet pipe; The liquid inlet pipe is connected to a bypass pipe (7), a first valve (9) is arranged on the bypass pipe, a second nozzle mounting pipe (8) and a third nozzle mounting pipe (10) are connected to the bypass pipe between the first valve and the liquid inlet pipe, the connection position of the second nozzle mounting pipe and the bypass pipe is close to the liquid inlet pipe relative to the third nozzle mounting pipe, a third nozzle (11) and a second valve (12) are installed on the third nozzle mounting pipe, the second nozzle is installed on the second nozzle mounting pipe, and the third valve (15) is installed on the second nozzle mounting pipe; A piston (13) and a spring (14) are arranged in the bypass pipe, the piston is arranged close to the liquid inlet pipe, one end of the spring is connected to the piston, and the other end is connected to the bypass pipe, and the connection position is located between the third nozzle installation pipe and the first valve; When the piston abuts against the liquid inlet pipe, the piston cuts off the connection between the liquid inlet pipe and the bypass pipe; When the piston is at the extreme position away from the liquid inlet pipe, the piston is located at a side of the third nozzle mounting tube away from the liquid inlet pipe.

4. A cutting device for construction steel according to any one of claims 1 to 3, characterized in that: A fourth valve (16) is installed on the liquid inlet pipe.

5. A cutting device for construction steel according to any one of claims 1 to 3, characterized in that: A flow guide hole (17) is provided on the workbench, a water storage box (18) connected to the flow guide hole is provided below the workbench, a drainage pipe (19) is provided at the bottom of the water storage box, and a fifth valve (20) is installed on the drainage pipe.

6. A cutting device for construction steel according to any one of claims 1 to 3, characterized in that: A bracket (21) is fixed on the workbench, an electric hydraulic cylinder (2-1) is installed on the top surface of the bracket, a motor (2-2) is installed at the power output end of the electric hydraulic cylinder, and a saw blade (2-3) is installed at the power output end of the motor.

7. A cutting device for construction steel according to any one of claims 1 to 3, characterized in that: The fixing device comprises a fixing seat (3-1), the fixing seat being fixed on the workbench, a receiving groove (3-2) being arranged transversely on the fixing seat, a threaded hole communicating with the receiving groove being arranged at the top end of the fixing seat, and a handle screw (3-3) cooperating with the threaded hole being arranged on the fixing seat.

8. A cutting device for construction steel according to claim 7, characterized in that: There are two fixing devices, and the cutting device is located between the two fixing devices.

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