Portable foam cutter

Abstract

The utility model relates to the technical field of foam cutting, in particular to a portable foam cutter. The device comprises a U-shaped pipe, a power bank is fixedly connected to one side wall of the horizontal part of the U-shaped pipe, a dismounting assembly is arranged on the lower side of the U-shaped pipe and located at the joint of the horizontal part and the vertical part, and a telescopic assembly is arranged on the lower side of the dismounting assembly and located at the vertical part, close to the power bank, of the U-shaped pipe. Foam needing to be cut is clamped through the clamping assembly, then the telescopic assembly is used for changing the height, the fixing assembly is used for fixing the height of the telescopic assembly, the device inclines by a proper angle, and therefore the inclined electric heating wire is used for conducting chamfering cutting on the foam; the whole device is convenient to detach and easy to carry through the detaching assembly 3, the electric heating wire and the resistance wire in the U-shaped pipe are connected through the splicing assembly, use is more convenient and safer, use of the device is not limited by a power source any more through the independent charge pal, and use of the cutter can be guaranteed under various conditions.

Description

Technical Field

[0001] The utility model relates to the technical field of foam cutting, more specifically to a portable foam cutter. Background Art

[0002] Foam has a wide range of uses and is frequently used in various fields. Before using foam, the foam board needs to be cut to shape it. At present, the most commonly used foam cutting method is to use electric heating wire to cut foam. The cutting machine includes large industrial foam cutting machine and small manual foam cutting machine. Foam cutting machine is mainly used for cutting foam materials. It can cut hard foam, soft foam, and plastic into square, rectangle, strip, etc. In the laboratory stage, the foam evaluation also needs to be shaped. For example, GB / T6670--Determination of the rebound performance of soft foam polymer materials requires that the specifications of the test sample should be 100mm×100mm×50mm (length×width×height). When the height is less than 50mm, it should be stacked to 50mm. Most of the existing foam cutters are large in size, inconvenient to carry, and have low portability.

[0003] Patent No. CN220008090U discloses an adjustable foam cutter, including an electric heating wire and a tube-shaped shell. The tube-shaped shells are two and arranged in parallel. One end of the tube-shaped shell is provided with an elbow tube fixed thereto. The two elbow tubes extend relative to each other and a connecting tube is provided therebetween. The two ends of the connecting tube are respectively telescopically matched with the two elbow tubes. An end of the tube-shaped shell away from the elbow tube is provided with a telescopic tube telescopically matched therewith. The two ends of the electric heating wire are respectively fixed to the outer ends of the two telescopic tubes.

[0004] Although the structure is simple, the flatness of the cutting surface is easily affected by human factors during use; in addition, most cutters cut foam on a straight plane, and other bevel cutting components are required to achieve the purpose of chamfering.

[0005] In view of this, the utility model provides a portable foam cutter. Utility Model Content

[0006] The purpose of the utility model is to provide a portable foam cutter to solve the problems raised by the above-mentioned background technology in view of the defects of the prior art.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a portable foam cutter, comprising a U-shaped tube, a power bank is fixedly connected to one side wall of the horizontal part of the U-shaped tube, a disassembly assembly is provided at the lower side of the U-shaped tube and located at the intersection of the horizontal part and the vertical part, a telescopic assembly is provided at the lower side of the disassembly assembly and located at the vertical part of the U-shaped tube close to the power bank, a support leg is provided at the lower side of the disassembly assembly and located at the vertical part of the U-shaped tube away from the telescopic assembly, and universal wheels are installed at the bottom of the telescopic assembly and the support leg;

[0008] The outer side walls of the vertical part of the U-shaped tube are all installed with clamping components, the interior of the U-shaped tube is embedded with a resistance wire, both ends of the resistance wire are provided with splicing components, and the side of the splicing component away from the resistance wire is provided with a heating wire.

[0009] As a further improvement of the present technical solution, the telescopic assembly includes a protective bracket, which is fixedly installed on the upper side of the universal wheel, a push block is clamped on the upper part of the inner cavity of the protective bracket, an end of the push block close to the universal wheel is fixedly connected to a connecting plate, a side of the lower end of the connecting plate is fixedly connected to a support rod, an end of the support rod away from the connecting plate is fixedly connected to a conveyor belt, the conveyor belt is sleeved with a pulley, a connecting shaft is fixedly installed in the middle of the pulley, and the connecting shaft passes through the outer walls at both ends of the pulley and is movably inserted in the inner wall of the U-shaped tube.

[0010] As a further improvement of the present technical solution, both side walls of the protective bracket are provided with a plurality of circular holes, and the protective bracket is composed of a plurality of groups of hollow rectangular plates clamped together, a fixing component is provided on the lower side of the push block, the fixing component includes a telescopic rod, the telescopic rod is movably plugged into the circular hole, hollow plates are fixed at both ends of the telescopic rod, and the fixing component is used to fix the position of the push block.

[0011] As a further improvement of the present technical solution, the disassembly assembly includes a support rod spherically hinged to the bottom of the U-shaped tube, a first support plate is fixedly installed on one end of the support rod away from the U-shaped tube, a second support plate is provided on the lower side of the first support plate, and the first support plate is in contact with the second support plate on opposite surfaces, and the first support plate and the second support plate are connected by bolts, and the bottom of the second support plate is fixedly connected to one end of the support leg close to the U-shaped tube.

[0012] As a further improvement of the present technical solution, the clamping assembly includes a limit block, which is fixedly connected to the outer wall of the vertical part of the U-shaped tube, and the limit block is movably connected with a bidirectional threaded rod, and the end of the bidirectional threaded rod away from the telescopic assembly is fixedly connected with a turntable, and limit plates are provided on both sides of the limit block, and the limit plates are provided with spiral holes, and the two spiral holes are movably connected to the bidirectional threaded rod.

[0013] As a further improvement of the present technical solution, the splicing assembly includes a ring which is sleeved with the resistance wire, a threaded groove is provided in the inner cavity wall of the end of the ring close to the heating wire, a spiral tube is clamped in the threaded groove, a limiting ring is inserted into the outer side wall of the end of the spiral tube close to the heating wire, and the outer side wall of the limiting ring is provided with multiple groups of arc-shaped protrusions.

[0014] As a further improvement of the technical solution, a switch for turning on the power bank is fixedly provided on the upper side of the power bank, and a side wall of the power bank is provided with a notch, and a charging port is provided in the notch.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The foam to be cut is clamped by the clamping component, and then the telescopic component is used to change the height. The fixing component fixes the height of the telescopic component so that the device is tilted at a suitable angle, thereby using the tilted heating wire to chamfer the foam. The disassembly component 3 makes the entire device easy to disassemble and carry, and the splicing component makes it more convenient and safe to connect the heating wire with the resistance wire in the U-shaped tube. The separate power bank makes the use of the device no longer restricted by the power supply, and the use of the cutter can be guaranteed under various conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is described in more detail below by way of example with reference to the accompanying drawings, in which:

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic cross-sectional view of the overall structure of the utility model;

[0020] Figure 3 It is a semi-sectional schematic diagram of the telescopic assembly structure of the utility model;

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the clamping assembly of the utility model;

[0022] Figure 5 It is a schematic diagram of the disassembly assembly, U-shaped tube, half-section view of the heating wire and the support leg structure of the utility model;

[0023] Figure 6 It is a schematic cross-sectional view of the splicing component structure of the utility model.

[0024] The meanings of the numbers in the figure are as follows: 1. U-shaped tube; 2. Power bank; 3. Disassembly assembly; 31. Support rod; 32. First support plate; 33. Second support plate; 4. Telescopic assembly; 41. Protective bracket; 42. Push block; 43. Connecting plate; 44. Conveyor belt; 45. Pulley; 46. Connecting shaft; 5. Support leg; 6. Clamping assembly; 61. Limit block; 62. Bidirectional threaded rod; 63. Turntable; 64. Limit plate; 7. Splicing assembly; 71. Ring; 72. Spiral tube; 73 Limiting ring; 8. Resistance wire; 9. Heating wire. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0026] Example: Figure 1-6 As shown, the device comprises a U-shaped tube 1, a power bank 2 is fixedly connected to one side wall of the horizontal part of the U-shaped tube 1, a disassembly component 3 is provided at the lower side of the U-shaped tube 1 and at the intersection of the horizontal part and the vertical part, a telescopic component 4 is provided at the lower side of the disassembly component 3 and at the vertical part of the U-shaped tube 1 close to the power bank 2, a support leg 5 is provided at the lower side of the disassembly component 3 and at the vertical part of the U-shaped tube 1 away from the telescopic component 4, and universal wheels are installed at the bottom of the telescopic component 4 and the support leg 5;

[0027] The outer side walls of the vertical part of the U-shaped tube 1 are installed with clamping components 6, and a resistance wire 8 is embedded in the U-shaped tube 1. Both ends of the resistance wire 8 are provided with splicing components 7, and a heating wire 9 is provided on the side of the splicing component 7 away from the resistance wire 8.

[0028] First, the specific structure of the telescopic component 4 is disclosed. The telescopic component 4 includes a protective bracket 41, which is fixedly installed on the upper side of the universal wheel. The universal wheel makes the entire device movable and keeps the entire device stable during the cutting process. A push block 42 is clamped on the upper part of the inner cavity of the protective bracket 41. On the one hand, the push block 42 supports the U-shaped tube 1, and on the other hand, the push block 42 is pushed by hand to move up and down. The end of the push block 42 close to the universal wheel is fixedly connected to a connecting plate 43, and one side of the lower end of the connecting plate 43 is fixedly connected to a support rod, and the end of the support rod away from the connecting plate 43 is fixed A conveyor belt 44 is connected, and the connecting plate 43 drives the conveyor belt 44 to perform translational movement in the same direction as the push block 42 by pushing the push block 42 up and down. The conveyor belt 44 is sleeved with a pulley 45. When the conveyor belt 44 performs translational movement, the pulley 45 connected to the conveyor belt 44 rotates. A connecting shaft 46 is fixedly installed in the middle of the pulley 45. At the same time, the connecting shaft 46 fixes the pulley 45 so that the position of the pulley 45 remains unchanged, and the connecting shaft 46 passes through the outer walls of both ends of the pulley 45 and is movably inserted into the inner wall of the U-shaped tube 1. The connecting shaft 46 allows the pulley 45 to rotate normally;

[0029] A plurality of circular holes are provided on both side walls of the protection bracket 41, and the protection bracket 41 is composed of a plurality of groups of hollow rectangular plates connected by clamping. When the whole device is tilted, the protection bracket 41 removes the redundant hollow rectangular plates so that the protection bracket 41 reaches a suitable height. Because the hollow rectangular plates cannot support the whole device, a push block 42 is provided to support the whole device. A fixing component is provided on the lower side of the push block 42, and the fixing component includes a telescopic rod, which is movably plugged into the circular hole. Hollow plates are fixed at both ends of the telescopic rod. A button is installed on one side of the hollow plate for controlling the start of the telescopic rod. The fixing component is used to fix the position of the push block 42. First, press the button to shorten the telescopic rod, and then remove the hollow rectangular plate. After removing the redundant hollow rectangular plate, push the push block 42 downward. At this time, the push block 42 is translated downward and stops at a suitable position. At this time, the hollow plate is translated to a suitable position, and the button is pressed. The telescopic rod is extended until the telescopic rod passes through the circular hole. Press the button to close the telescopic rod and fix the position of the push block 42.

[0030] According to the above disclosure of the specific structure of the disassembly assembly 3, the disassembly assembly 3 includes a support rod 31 spherically hinged to the bottom of the U-shaped tube 1, so that the device is easier to tilt, and a first support plate 32 is fixedly installed at one end of the support rod 31 away from the U-shaped tube 1, and the first support plate 32 supports the U-shaped tube 1. A second support plate 33 is provided on the lower side of the first support plate 32, and the first support plate 32 and the second support plate 33 are in contact with each other on the opposite surfaces, and the first support plate 32 and the second support plate 33 are connected by bolts, and the bottom of the second support plate 33 is fixedly connected to the end of the leg 5 close to the U-shaped tube 1. The bolt connection between the first support plate 32 and the second support plate 33 makes it easy to disassemble and install the leg 5. The leg 5 and the U-shaped tube 1 can be installed and disassembled by only unscrewing the bolts, and it can ensure that the cutting is more stable during use, the intermittent placement is stable, and the space occupation is reduced after use, and it is easy to store;

[0031] According to the above disclosure of the specific structure of the clamping assembly 6, the clamping assembly 6 includes a limit block 61, the limit block 61 is fixedly connected to the outer wall of the vertical part of the U-shaped tube 1, the limit block 61 fixes the position of the entire clamping assembly 6, the limit block 61 is movably plugged with a bidirectional threaded rod 62, so that when the bidirectional threaded rod 62 moves, there is no deviation, and the end of the bidirectional threaded rod 62 away from the telescopic assembly 4 is fixedly connected to a turntable 63, and the turntable 63 is rotated to rotate the bidirectional threaded rod 62, and both sides of the limit block 61 are provided with limit plates 64, and the limit plates 6 4 are provided with spiral holes, and both spiral holes are movably plugged with the bidirectional threaded rod 62. When the bidirectional threaded rod 62 rotates clockwise, the two limit plates 64 are translated in opposite directions through the two spiral holes, so that the clamping distance is increased. When the bidirectional threaded rod 62 rotates counterclockwise, the two limit plates 64 are translated in relative directions through the two spiral holes, so that the clamping distance is reduced, so that foams of different sizes can be clamped, and the high-temperature debris when the electric heating wire 9 cuts the foam can be prevented from touching the user's body, thereby avoiding harm to human safety.

[0032] According to the above disclosure of the specific structure of the splicing assembly 7, the splicing assembly 7 includes a sleeve 71 sleeved with the resistance wire 8, the sleeve 71 is installed with the resistance wire 8, so that the resistance wire 8 is connected to the electric heating wire 9 through the splicing assembly 7, so that the electric heating wire 9 generates heat to cut the foam, and a thread groove is opened in the inner cavity wall of the sleeve 71 near the end of the electric heating wire 9, and the thread groove is clamped with a spiral tube 72, and the spiral tube 72 is clamped on the sleeve 71 through the thread groove, so that the electric heating wire 9 is connected to the resistance wire 8, and the spiral tube 72 is close to the electric heating wire 9. The outer wall of one end of the wire 9 is plugged with a limiting ring 73, and the outer wall of the limiting ring 73 is provided with multiple groups of arc-shaped protrusions. By rotating the limiting ring 73, the spiral tube 72 is connected to the sleeve ring 71 along the trajectory of the thread groove, so that the electric heating wire 9 and the resistance wire 8 can be connected, and the electric heating wire 9 is heated to cut the foam. The protrusions on the outer wall of the limiting ring 73 increase the friction force, so that the user can more easily connect the spiral tube 72 and the sleeve ring 71. The electric heating wire 9 is connected to the resistance wire 8 in the U-shaped tube 1 by the splicing assembly 7, which is more convenient and safer to use.

[0033] According to the above disclosure of the specific structure of the power bank 2, a switch for turning on the power bank 2 is fixedly arranged on the upper side of the power bank 2, and a slot is provided on one side wall of the power bank 2, in which a charging port is provided, and the switch opens and closes the power bank 2 to start and shut down the entire device, and the charging port can replenish the power of the power bank 2 when the device is idle, so that the use of the device is no longer restricted by the power supply, and the use of the cutter can be guaranteed under various conditions.

[0034] The improvement of this embodiment is that the device reaches a suitable tilt angle by removing the redundant hollow rectangular plate, and the spherical hinge makes the whole device easy to tilt. At the same time, the push block 42 is pushed downward to move in a translational manner, so that the push block 42 reaches a suitable height, and the telescopic component 4 is fixed by a fixing component to make the device tilt, so as to perform chamfering cutting;

[0035] In summary, the working principle of this solution is as follows:

[0036] The foam to be cut is clamped by the clamping component 6, and then the telescopic component 4 is used to change the height. The fixing component fixes the height of the telescopic component 4 so that the device is tilted at a suitable angle, thereby utilizing the tilted heating wire 9 to chamfer the foam. The disassembly component 3 makes the entire device easy to disassemble and carry, and the splicing component 7 connects the heating wire 9 with the resistance wire 8 in the U-shaped tube 1, making it more convenient and safer to use. The separate power bank 2 makes the use of the device no longer restricted by the power supply, and the use of the cutter can be guaranteed under various conditions.

[0037] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A portable foam cutter, comprising a U-shaped tube (1), characterized in that: A power bank (2) is fixedly connected to one side wall of the horizontal portion of the U-shaped tube (1); a disassembly assembly (3) is provided on the lower side of the U-shaped tube (1) and located at the intersection of the horizontal portion and the vertical portion; a telescopic assembly (4) is provided on the lower side of the disassembly assembly (3) and located at the vertical portion of the U-shaped tube (1) close to the power bank (2); a support leg (5) is provided on the lower side of the disassembly assembly (3) and located at the vertical portion of the U-shaped tube (1) far from the telescopic assembly (4); and universal wheels are installed at the bottom of the telescopic assembly (4) and the support leg (5); The outer side walls of the vertical part of the U-shaped tube (1) are all installed with clamping components (6), a resistance wire (8) is embedded in the interior of the U-shaped tube (1), both ends of the resistance wire (8) are provided with splicing components (7), and a heating wire (9) is provided on the side of the splicing component (7) away from the resistance wire (8).

2. The portable foam cutter according to claim 1, characterized in that: The telescopic assembly (4) comprises a protection bracket (41), the protection bracket (41) is fixedly mounted on the upper side of the universal wheel, a push block (42) is clamped on the upper part of the inner cavity of the protection bracket (41), one end of the push block (42) close to the universal wheel is fixedly connected to a connecting plate (43), one side of the lower end of the connecting plate (43) is fixedly connected to a support rod, one end of the support rod away from the connecting plate (43) is fixedly connected to a conveyor belt (44), the conveyor belt (44) is sleeved with a pulley (45), a connecting shaft (46) is fixedly mounted in the middle of the pulley (45), and the connecting shaft (46) passes through the outer walls of both ends of the pulley (45) and is movably inserted into the inner wall of the U-shaped tube (1).

3. The portable foam cutter according to claim 2, characterized in that: The two side walls of the protection bracket (41) are provided with a plurality of circular holes, and the protection bracket (41) is composed of a plurality of groups of hollow rectangular plates clamped together. A fixing component is provided on the lower side of the push block (42), and the fixing component comprises a telescopic rod, which is movably plugged into the circular hole, and hollow plates are fixed at both ends of the telescopic rod. The fixing component is used to fix the position of the push block (42).

4. The portable foam cutter according to claim 1, characterized in that: The disassembly assembly (3) comprises a support rod (31) spherically hinged to the bottom of the U-shaped tube (1); a first support plate (32) is fixedly mounted on one end of the support rod (31) away from the U-shaped tube (1); a second support plate (33) is provided on the lower side of the first support plate (32); the first support plate (32) and the second support plate (33) are in contact with each other on their opposite surfaces; the first support plate (32) and the second support plate (33) are connected by bolts; and the bottom of the second support plate (33) is fixedly connected to one end of the support leg (5) close to the U-shaped tube (1).

5. The portable foam cutter according to claim 1, characterized in that: The clamping assembly (6) comprises a limit block (61), the limit block (61) is fixedly connected to the outer side wall of the vertical part of the U-shaped tube (1), the limit block (61) is movably connected with a bidirectional threaded rod (62), one end of the bidirectional threaded rod (62) away from the telescopic assembly (4) is fixedly connected with a turntable (63), both sides of the limit block (61) are provided with limit plates (64), and the limit plates (64) are provided with spiral holes, and the two spiral holes are movably connected with the bidirectional threaded rod (62).

6. The portable foam cutter according to claim 1, characterized in that: The splicing assembly (7) comprises a sleeve (71) sleeved with the resistance wire (8), a thread groove is provided in the inner wall of the end of the sleeve (71) close to the heating wire (9), a spiral tube (72) is clamped in the thread groove, a limit ring (73) is inserted into the outer wall of the end of the spiral tube (72) close to the heating wire (9), and the outer wall of the limit ring (73) is provided with multiple groups of arc-shaped protrusions.

7. The portable foam cutter according to claim 1, characterized in that: A switch for turning on the power bank (2) is fixedly arranged on the upper side of the power bank (2), and a slot is provided on one side wall of the power bank (2), wherein a charging port is provided in the slot.

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