Pipe cutting device for building housing construction

Abstract

The utility model discloses a pipe cutting device for building housing construction, which relates to the technical field of cutting and comprises a movable cutting component for cutting pipes, and the cutting component comprises a cutting blade and a protective cover for shielding the upper part of the cutting blade; the device further comprises a telescopic protective cover, an elastic piece and a traction rope. The telescopic protective cover is arc-shaped, shields the outer side of the edge of the cutting blade and slides along the arc of the protective cover; the elastic piece is connected between the telescopic protective cover and the protective cover, so that the telescopic protective cover partially extends out of the protective cover and shields the outer side of the lower edge of the cutting blade; one end of the traction rope is fixedly supported, and the other end is connected with the telescopic shield; when the cutting assembly is far away from the fixed supporting end of the traction rope, the traction rope enables the telescopic protective cover to slide along the protective cover and compress the elastic piece; the traction rope and the elastic piece are used for supporting the telescopic protective cover, and when the cutting assembly moves towards a pipe in a feeding mode, the traction rope enables the telescopic protective cover to slide, contract and compress the elastic piece, so that the cutting portion of the cutting piece automatically leaks out, and cutting work is not affected.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting, in particular to a pipe cutting device for building construction. Background Art

[0002] Pipes are essential materials in building construction. Commonly used ones include water pipes, drainage pipes, gas pipes, heating pipes, electrical conduits, rainwater pipes, etc. Among them, metal pipes are the most common. In building construction, a large amount of pipe cutting is required.

[0003] During the cutting process, the cutting blade rotates at high speed to cut the pipe, and the cutting structure can often move to feed the pipe. In traditional technology, the protective cover of the cutting blade is mostly a half cover that can only cover half of the cutting blade. The highly rotating exposed cutting blade is dangerous. The utility model patent with publication number CN218555730U is a safety protection device for hardware cutting equipment. A mobile shield is set in the protective shell to improve safety, so that the cutting blade can only be exposed during cutting; but it needs to rely on the material being cut to squeeze the mobile shield to force the mobile shield to open. During use, the mobile shield is not opened smoothly, affecting the cutting work. Utility Model Content

[0004] The purpose of the utility model is to provide a pipe cutting device for building construction in order to solve the above-mentioned problems in the prior art.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A pipe cutting device for building construction includes a movable cutting assembly for cutting pipes, wherein the cutting assembly includes a cutting blade and a protective cover for shielding the upper part of the cutting blade; and further includes:

[0007] The telescopic protective cover is arc-shaped, shields the outer side of the edge of the cutting blade, and slides along the arc of the protective cover;

[0008] An elastic member, the elastic member is connected between the telescopic shield and the protective cover, so that the telescopic shield partially extends out of the protective cover and blocks the outer side of the lower edge of the cutting blade;

[0009] A traction rope, one end of which is fixedly supported and the other end of which is connected to the telescopic shield; when the cutting assembly is away from the fixed support end of the traction rope, the traction rope causes the telescopic shield to slide along the protective cover and compress the elastic member.

[0010] Furthermore, two telescopic shields are provided, symmetrically arranged on the inner sides of both ends of the shields; the number of the elastic members and the traction ropes are both two, and both correspond one to one with the telescopic shields; the traction rope passes through the middle of the shield.

[0011] Furthermore, an arc-shaped protrusion is provided on the inner side of the protective cover to limit the inner ring side of the telescopic protective cover; an arc-shaped plate is also provided on the inner side of the protective cover, and the elastic member is located between the arc-shaped plate and the inner wall of the protective cover.

[0012] Furthermore, the elastic member is a coil spring.

[0013] Furthermore, it also includes a clamping frame for fixing and supporting the traction rope, wherein a movable block is slidably connected to the clamping frame, a first bolt is threadedly connected to the clamping frame, and the first bolt is rotatably connected to the movable block; the movable block and a side wall of the clamping frame clamp and fix the traction rope.

[0014] Furthermore, it also includes a base, on which a mounting plate is rotatably mounted, on which a motor and a transmission mechanism are mounted, and the motor drives the cutting blade to rotate through the transmission mechanism, and the protective cover is connected to the mounting plate.

[0015] Furthermore, it also includes a fixed clamping block, a movable clamping block, a fixed block and a second bolt; the movable clamping block is slidably connected to the fixed block, the second bolt is rotatably connected to the movable clamping block and is threadedly connected to the fixed block; the fixed clamping block and the movable clamping block clamp the pipe.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0017] The utility model uses a traction rope and an elastic member to support the telescopic shield. When the cutting assembly moves toward the pipe, the traction rope causes the telescopic shield to slide and contract to compress the elastic member, so that the cutting part of the cutting blade is automatically leaked out without affecting the cutting work.

[0018] The utility model has two telescopic shields that open and close symmetrically. When the cutting assembly is away from the pipe, the telescopic shield can completely cover the lower part of the cutting blade, thereby playing a good protective role. The fixed support end of the traction rope is realized by a clamping structure, and the length of the traction rope between the fixed end and the telescopic shield can be changed, thereby adjusting the opening and closing position of the telescopic shield to adapt to the cutting of pipes of different specifications and fully ensure safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the telescopic shield of the utility model in the open state.

[0020] Figure 2 It is a schematic diagram of the closed state of the telescopic shield of the utility model.

[0021] Figure 3 This is a schematic diagram of the protective cover and its internal structure of the utility model.

[0022] Figure 4 This is a schematic diagram of the structure of the clamping frame of the utility model.

[0023] Figure 5This is a schematic diagram of the protective cover structure of the utility model.

[0024] Figure 6 It is a schematic diagram of the telescopic shield structure of the utility model.

[0025] In the figure: 1. protective cover; 2. cutting blade; 3. telescopic cover; 4. elastic member; 5. traction rope; 6. clamping frame; 7. limiting ring; 8. movable block; 9. first bolt; 10. base; 11. mounting plate; 12. motor; 13. transmission mechanism; 14. fixed clamping block; 15. movable clamping block; 16. fixed block; 17. guide rod; 18. second bolt; 101. arc-shaped protrusion; 102. arc-shaped plate. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model, that is, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0027] It should be noted that relational terms such as "first" and "second" are used only 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", "comprises" or any other variations 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.

[0028] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" that may appear should be understood in a broad sense, for example, it 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, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the term "provided with" that may appear should be understood in a broad sense. For example, the object "provided with" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be a detachable connection or an inseparable connection. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] The present invention is further described in detail below in conjunction with the embodiments.

[0031] Specific embodiments of the pipe cutting device for building construction provided by the utility model:

[0032] See also Figure 1-6 The pipe cutting device for building construction includes a base 10, on which a mounting plate 11 is rotatably mounted. Specifically, a support is provided on the base 10, and the support supports the middle part of the mounting plate 11 to rotate. A motor 12 and a cutting assembly are respectively mounted on the rear end and the front end of the mounting plate 11. A transmission mechanism 13 is connected between the motor 12 and the cutting assembly, and the motor 12 drives the cutting assembly to operate and cut the pipe through the transmission mechanism 13.

[0033] In this embodiment, the transmission mechanism 13 includes two sets of pulleys and a plurality of transmission belts, and the two sets of pulleys are respectively connected to the output end of the motor 12 and the cutting assembly. A handle is connected to the front end of the mounting plate 11, and the mounting plate 11 is rotated by the handle to realize the movement and feeding of the cutting assembly.

[0034] A fixed clamping block 14, a movable clamping block 15, a fixed block 16 and a second bolt 18 are arranged on the upper side of the front end of the base 10; the movable clamping block 15 is slidably connected to the fixed block 16, and specifically, the movable clamping block 15 is connected to a plurality of guide rods 17, and the guide rods 17 slide through the fixed block 16. The second bolt 18 is rotatably connected to the movable clamping block 15 and is threadedly connected to the fixed block 16; the opposite sides of the fixed clamping block 14 and the movable clamping block 15 are provided with grooves with arc-shaped cross-sections to facilitate clamping of round pipes.

[0035] The outer end of the second bolt 18 is connected to a hand wheel, and the second bolt 18 is rotated by turning the hand wheel, so that the movable clamping block 15 is supported by the guide rod 17 and moves closer to the fixed clamping block 14, clamping the pipe below the cutting assembly.

[0036] The cutting assembly includes a cutting blade 2 and a protective cover 1 that shields the upper part of the cutting blade 2; the cutting blade 2 is rotatably mounted on the upper side of a mounting plate 11, the protective cover 1 is fixedly connected to the mounting plate 11, the axis of the cutting blade 2 is rotatably connected to the mounting plate 11, one end of the axis of the cutting blade 2 is connected to a transmission mechanism 13, and the other end passes through a side wall of the protective cover 1 and is connected to the cutting blade 2. The protective cover 1 has an outer shape that is close to a semicircle but larger than a semicircle, and covers the outer side of the upper part of the cutting blade 2.

[0037] The inner sides of both ends of the protective cover 1 are slidably connected with telescopic protective covers 3, and there are two symmetrical telescopic protective covers 3. The telescopic protective covers 3 are arc-shaped and have a U-shaped cross-section, shielding the outer side of the edge of the cutting blade 2 and being able to slide in an arc shape inside the protective cover 1.

[0038] The inner side walls of the protective cover 1 are provided with arc-shaped protrusions 101 for limiting the inner ring side of the telescopic protective cover 3; the inner side of the protective cover 1 is also provided with an arc-shaped plate 102, which is unfolded into a cross shape, so that the telescopic protective cover 3 with a U-shaped cross section can slide in the protective cover 1. The inner end of the telescopic protective cover 3 and the outer end of the protective cover 1 are provided with corresponding baffles to prevent the telescopic protective cover 3 from completely separating from the protective cover 1.

[0039] A through hole is provided on the outer wall in the middle of the protective cover 1, and two limit rings 7 are provided in the middle of the protective cover 1. The two limit rings 7 are symmetrical on both sides of the through hole, and the two limit rings 7 correspond to the two telescopic protective covers 3. An elastic member 4 is connected between the telescopic protective covers 3 and the corresponding limit rings 7. The elastic support between the telescopic protective cover 3 and the protective cover 1 is realized through the limit rings 7 and the elastic member 4. In this embodiment, the elastic member 4 is a coil spring, and the elastic member 4 is arc-shaped and is located between the arc plate 102 and the inner wall of the protective cover 1.

[0040] When there is no external force interference, the elastic member 4 can make the telescopic shield 3 partially extend out of the protective cover 1 and block the outer side of the lower edge of the cutting blade 2; the ends of the two telescopic shields 3 collide with each other, fully blocking the lower part of the cutting blade 2 to form comprehensive protection.

[0041] The telescopic shields 3 are connected with traction ropes 5, which extend to the outside through the coil spring, the limit ring 7 and the through hole in the middle of the protective shield 1, and the outer end is fixedly clamped and supported by a clamping frame 6, which is installed on the upper side of the base 10. In this embodiment, the number of elastic members 4 and traction ropes 5 is two, and they correspond to the telescopic shields 3 one by one.

[0042] When the cutting assembly is away from the fixed support end of the traction rope 5, the traction rope 5 causes the telescopic shield 3 to slide along the protective cover 1 and compress the elastic member 4; thus, when the cutting assembly moves downward, the traction rope 5 can cause the telescopic shield 3 to contract, automatically leaking out the lower part of the cutting blade 2, and the cutting blade 2 cuts the pipe below.

[0043] like Figure 4As shown, a movable block 8 is slidably connected to the clamping frame 6, and a cross-shaped slide groove is provided on the upper part of the clamping frame 6. The movable block 8 is cross-shaped and slides vertically along the slide groove. A first bolt 9 is threadedly connected to the clamping frame 6, and the first bolt 9 is rotatably connected to the movable block 8; a disc-shaped handle is connected to the upper end of the first bolt 9, and the first bolt 9 is rotated by rotating the handle to drive the first bolt 9 to rotate, so that the movable block 8 moves downward, and the movable block 8 and a side wall of the clamping frame 6, that is, the bottom wall of the slide groove can clamp and fix the traction rope 5 to achieve fixed support of the outer end of the traction rope 5. By fixing and supporting the outer end of the traction rope 5 with the clamping structure, the fixed support position of the traction rope 5 can be changed, thereby changing the length of the two traction ropes 5 between the clamping frame 6 and the telescopic shield 3, as shown in FIG. Figure 1 As shown, the telescopic shield 3 in this state has a larger opening angle range, and can cut larger-sized pipes; if the length of the traction rope 5 between the clamping frame 6 and the telescopic shield 3 is increased, then in the process of the cutting assembly moving downward, the telescopic shield 3 opens late and the final opening angle is small, which is suitable for cutting small-sized pipes, avoiding the high-speed rotating cutting blade 2 from leaking out too early before cutting, and playing a more adequate protective role.

[0044] Finally, it should be noted that the above is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments without creative work, or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A pipe cutting device for building construction, comprising a movable cutting assembly for cutting pipes, wherein the cutting assembly comprises a cutting blade (2) and a protective cover (1) for shielding the upper part of the cutting blade (2); characterized in that: Also includes: A telescopic protective cover (3), the telescopic protective cover (3) is arc-shaped, shields the outer side of the edge of the cutting blade (2), and slides along the arc of the protective cover (1); An elastic member (4), the elastic member (4) being connected between the telescopic shield (3) and the protective cover (1) so that the telescopic shield (3) partially extends out of the protective cover (1) and blocks the outer side of the lower edge of the cutting blade (2); A traction rope (5) having one end fixedly supported and the other end connected to the telescopic shield (3); when the cutting assembly is away from the fixedly supported end of the traction rope (5), the traction rope (5) causes the telescopic shield (3) to slide along the protective cover (1) and compress the elastic member (4).

2. The pipe cutting device for building construction according to claim 1 is characterized in that: The telescopic shields (3) are provided in pairs and are symmetrically arranged on the inner sides of the two ends of the protective shield (1); the elastic members (4) and the traction ropes (5) are both provided in pairs and correspond one to one with the telescopic shields (3); the traction ropes (5) pass through the middle of the protective shield (1).

3. The pipe cutting device for building construction according to claim 2, characterized in that: The inner side of the protective cover (1) is provided with an arc-shaped protrusion (101) for limiting the inner ring side of the telescopic protective cover (3); the inner side of the protective cover (1) is also provided with an arc-shaped plate (102), and the elastic member (4) is located between the arc-shaped plate (102) and the inner wall of the protective cover (1).

4. The pipe cutting device for building construction according to claim 1 or 3, characterized in that: The elastic member (4) is a coil spring.

5. The pipe cutting device for building construction according to claim 1, characterized in that: It also comprises a clamping frame (6) for fixing and supporting the traction rope (5), wherein a movable block (8) is slidably connected to the clamping frame (6), a first bolt (9) is threadedly connected to the clamping frame (6), and the first bolt (9) is rotatably connected to the movable block (8); the movable block (8) and a side wall of the clamping frame (6) clamp and fix the traction rope (5).

6. The pipe cutting device for building construction according to claim 1, characterized in that: The invention also comprises a base (10), a mounting plate (11) being rotatably mounted on the base (10), a motor (12) and a transmission mechanism (13) being mounted on the mounting plate (11), the motor (12) driving the cutting blade (2) to rotate via the transmission mechanism (13), and the protective cover (1) being connected to the mounting plate (11).

7. The pipe cutting device for building construction according to claim 1, characterized in that: It also comprises a fixed clamping block (14), a movable clamping block (15), a fixed block (16) and a second bolt (18); the movable clamping block (15) is slidably connected to the fixed block (16); the second bolt (18) is rotatably connected to the movable clamping block (15) and is threadedly connected to the fixed block (16); the fixed clamping block (14) and the movable clamping block (15) clamp the pipe.

Images