Segmented cutting type hose cutter

Abstract

The utility model provides a sectional cutting type hose cutter. The sectional cutting type hose cutter comprises a first clamp body and a second clamp body which are connected through a main rotating shaft. An L-shaped blade is further arranged on the main rotating shaft, and a ratchet wheel is arranged at the joint of the blade and the main rotating shaft; a first protruding block and a second protruding block which are correspondingly clamped with ratchets of the ratchet wheel are arranged on the first clamp body and the second clamp body respectively. The L-shaped blade is easier to cut the hose to form a crevasse, so that the cutting is more labor-saving; the blade with the ratchet wheel and the protruding blocks on the two pliers bodies are mutually clamped and used, two-end type cutting can be achieved, and an operator can apply force more conveniently. And rapid resetting is achieved through the reset spring, the construction speed of operators is increased, and the cutting work efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of cutting tools, and in particular to a segmented cutting hose cutter. Background Technology

[0002] Hose cutters are commonly used tools in piping engineering, primarily for cutting pipes into sections. Existing hose cutters typically consist of two hinged jaws. The front section of the jaws before the hinge point forms the cutting head, and the rear section after the hinge point forms the handle. These sections are usually integrally formed. When using the cutter, gripping the handle amplifies the gripping force at the jaws, creating a clamping force based on the lever principle. Users often desire less effort when using pliers for clamping and cutting, achieving the same or even better results with less force. This requires a larger ratio between the lever arm of the gripping point on the handle relative to the hinge point and the lever arm of the clamping surface or cutting edge on the jaws relative to the hinge point.

[0003] Utility model application CN202878350U discloses a small pipe cutter, which includes a first handle and a second handle. A blade is connected to the upper end of the first handle, and a pipe groove is formed on the upper end of the second handle. The first and second handles are hinged together at their uppermost points. This design, using a handle with a blade and a handle with a pipe groove at the upper end, is portable, simple in structure, and convenient to use. Utility Model Content

[0004] When the hose cutter is cutting a large diameter pipe, the opening of the two clamp handles will be too large during the cutting operation. The operator often needs to hold the handle close to the hinge point to operate it. This will make the lever arm smaller and the cutting of the pipe more difficult. Alternatively, the operator may need to hold the handle with their palm completely open, which will easily lead to fatigue over time.

[0005] To solve the above problems, the technical solution provided by this utility model is as follows: a segmented cutting hose cutter, including a first clamp body and a second clamp body connected by a main rotating shaft; the main rotating shaft is also provided with an L-shaped blade, and a ratchet is provided at the connection between the blade and the main rotating shaft; the first clamp body and the second clamp body are respectively provided with a first protrusion and a second protrusion that engage with the ratchet teeth of the ratchet.

[0006] Specifically, the first clamp body is divided into a first grip and a slot with the main rotating shaft as the boundary. The slot is a semi-circular fixing groove to limit the movement of the hose.

[0007] Specifically, a spring slot is provided on the side of the slot near the main rotating shaft, and a limit spring is provided in the spring slot.

[0008] Specifically, the second clamp body is divided into a second grip and a limiting rod, with the main rotating shaft as the boundary. The end of the limiting rod away from the main rotating shaft abuts against a limiting spring. The limiting spring restricts the rotation angle of the second clamp body and acts as a buffer for the second clamp body during the overall reset process of the flexible hose cutter.

[0009] Specifically, the first protrusion is fixed to the side of the first grip near the main pivot via a first protrusion shaft. The first protrusion can rotate slightly around the first protrusion shaft.

[0010] Specifically, the first protrusion engages with the ratchet teeth of the ratchet at the first end, and the other end is a first spring stop; a first spring is provided between the spring stop and the first grip. The first spring applies pressure to the first protrusion, causing the first tooth end to engage tightly with the ratchet teeth.

[0011] Specifically, the second protrusion is fixed to the side of the second grip near the main pivot via a second protrusion shaft. The second protrusion can rotate slightly around the second protrusion shaft.

[0012] Specifically, the second protrusion engages with the ratchet teeth of the ratchet at the second end, and the other end is a second spring stop; a second spring is provided between the spring stop and the second grip. The second spring applies pressure to the second protrusion, causing the second tooth end to engage tightly with the ratchet teeth. When the clamp is gripped and the pliers are used for cutting, the second protrusion pushes the ratchet to rotate the blade for cutting.

[0013] Specifically, the blade is L-shaped overall, with the outer edge of the protruding L-shaped end in the middle of the blade being obtuse. When cutting hoses, the obtuse-angled blade makes it easier to create a puncture in the pipe, making the cut easier.

[0014] Specifically, a return spring is located at the end of the ratchet near the slot, and is connected to the slot. When the clamp is released, the return spring pulls the ratchet to reset it.

[0015] The beneficial effects of this utility model are: the L-shaped blade makes it easier to cut a puncture in the hose, making cutting less strenuous; the ratchet-equipped blade and the protrusions on the two clamps engage with each other, enabling cutting at both ends, making it easier for the operator to apply force; and the use of a return spring enables quick reset, accelerating the operator's work speed and improving cutting efficiency. Attached Figure Description

[0016] Figure 1 This is a structural diagram of the present utility model.

[0017] Figure 2 This is a schematic diagram showing the completion of a section cutting according to this utility model.

[0018] Figure 3 This is a schematic diagram showing the completion of the two-stage cutting of this utility model.

[0019] In the figure, 1 is blade 1, 2 is ratchet 2, 3 is first clamp body 3, 4 is second clamp body 4, 5 is slot 5, 6 is first protrusion 6, 7 is second protrusion 7, 8 is return spring 8, 9 is first spring 9, 10 is second spring 10, 11 is limit spring 11, 12 is first locking tooth end 12, 13 is first spring stop 13, 14 is second locking tooth end 14, 15 is second spring stop 15, 16 is first ratchet 16, 17 is second ratchet 17, 18 is third ratchet 18, 19 is first protrusion shaft 19, and 20 is second protrusion shaft 20. Detailed Implementation

[0020] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] Hose cutters are commonly used tools in piping engineering, primarily for cutting pipes into sections. Existing hose cutters typically consist of two hinged jaws. The front section of the jaws before the hinge point forms the cutting head, and the rear section after the hinge point forms the handle. These sections are usually integrally formed. When using the cutter, gripping the handle amplifies the gripping force at the jaws, creating a clamping force based on the lever principle. Users often desire less effort when using pliers for clamping and cutting, achieving the same or even better results with less force. This requires a larger ratio between the lever arm of the gripping point on the handle relative to the hinge point and the lever arm of the clamping surface or cutting edge on the jaws relative to the hinge point.

[0022] When the hose cutter is cutting a large diameter pipe, the opening of the two clamp handles will be too large during the cutting operation. The operator often needs to hold the handle close to the hinge point to operate it. This will make the lever arm smaller and the cutting of the pipe more difficult. Alternatively, the operator may need to hold the handle with their palm completely open, which will easily lead to fatigue over time.

[0023] Therefore, a segmented cutting hose cutter was designed to facilitate the operator's application of force and grip, thereby increasing cutting efficiency.

[0024] Example 1: A segmented cutting hose cutter includes a first clamping body 3 and a second clamping body 4 connected by a main rotating shaft; the main rotating shaft is also provided with an L-shaped blade 1, and a ratchet 2 is provided at the connection between the blade 1 and the main rotating shaft; the first clamping body 3 and the second clamping body 4 are respectively provided with a first protrusion 6 and a second protrusion 7 that engage with the ratchet teeth of the ratchet 2.

[0025] The first clamp body 3 is divided into a first grip and a slot 5 with the main rotating shaft as the boundary. The slot 5 is a semi-circular fixing slot that limits the position of the hose.

[0026] A spring slot is provided on the side of the slot 5 near the main shaft, and a limit spring 11 is provided in the spring slot.

[0027] The second clamp 4 is divided into a second grip and a limiting rod by the main rotating shaft. The end of the limiting rod away from the main rotating shaft abuts against the limiting spring 11. The limiting spring 11 restricts the rotation angle of the second clamp 4 and plays a buffering role in the reset process of the entire hose cutter.

[0028] The first protrusion 6 is fixed to the side of the first grip near the main rotating shaft via the first protrusion shaft 19. The first protrusion 6 can rotate slightly around the first protrusion shaft 19 as the axis.

[0029] The first protrusion 6 engages with the ratchet teeth of the ratchet 2 at the first tooth end 12, and the other end is a first spring stop 13; a first spring 9 is provided between the spring stop and the first grip. The first spring 9 applies pressure to the first protrusion 6, so that the first tooth end 12 engages tightly with the ratchet teeth.

[0030] The second protrusion 7 is fixed to the side of the second grip near the main pivot via the second protrusion shaft 20. The second protrusion 7 can rotate slightly around the second protrusion shaft 20.

[0031] The second protrusion 7 engages with the ratchet teeth of the ratchet 2 at the second tooth end 14, and the other end is the second spring stop 15; a second spring 10 is provided between the spring stop and the second grip. The second spring 10 applies pressure to the second protrusion 7, so that the second tooth end 14 engages tightly with the ratchet teeth. When the clamp is gripped and the pliers are cutting, the second protrusion 7 pushes the ratchet 2 to rotate the blade 1 for cutting.

[0032] Blade 1 is L-shaped overall, with the outer edge of the protruding end of the L-shape in the middle of the blade being obtuse. When cutting hoses, the obtuse-angled blade makes it easier to create a puncture in the pipe, making the cut easier.

[0033] A return spring 8 is provided at the end of the ratchet 2 near the slot 5 and is connected to the slot 5. When the clamp body is released, the return spring 8 pulls the ratchet 2 to achieve reset.

[0034] In use, the hose to be cut is fixed in the slot 5 of the first clamp body 3. The operator grips the clamp body tightly, and the second protrusion 7 on the second clamp body 4 engages with the second ratchet 17. During the gripping process, the second protrusion 7 pushes the ratchet 2 to rotate, which in turn drives the blade 1 to rotate, performing the first end cut. After the first end cut is completed, the first protrusion 6 on the first clamp body 3 is pushed by the first spring 9 to engage with the first ratchet 16, locking the ratchet 2. At this time, the clamp body is released, and the second clamp body 4 returns to its original position. The second protrusion 7 on the second clamp body 4 engages with the next ratchet on the ratchet 2, namely the third ratchet 18. At this time, the clamp body is gripped again, and the second protrusion 7 pushes the ratchet 2 to rotate again. The blade 1 rotates to complete the second end cut. At this time, the blade 1 completely cuts the entire hose, and the first protrusion 6 on the first clamp body 3 engages with the second ratchet 17.

[0035] Example 2: A segmented cutting hose cutter includes a first clamping body 3 and a second clamping body 4 connected by a main rotating shaft; the main rotating shaft is also provided with an L-shaped blade 1, and a ratchet 2 is provided at the connection between the blade 1 and the main rotating shaft; the first clamping body 3 and the second clamping body 4 are respectively provided with a first protrusion 6 and a second protrusion 7 that engage with the ratchet teeth of the ratchet 2.

[0036] The first clamp body 3 is divided into a first grip and a slot 5 with the main rotating shaft as the boundary. The slot 5 is a semi-circular fixing slot that limits the position of the hose.

[0037] A spring slot is provided on the side of the slot 5 near the main shaft, and a limit spring 11 is provided in the spring slot.

[0038] The second clamp 4 is divided into a second grip and a limiting rod by the main rotating shaft. The end of the limiting rod away from the main rotating shaft abuts against the limiting spring 11. The limiting spring 11 restricts the rotation angle of the second clamp 4 and plays a buffering role in the reset process of the entire hose cutter.

[0039] The first protrusion 6 is fixed to the side of the first grip near the main rotating shaft via the first protrusion shaft 19. The first protrusion 6 can rotate slightly around the first protrusion shaft 19 as the axis.

[0040] The first protrusion 6 engages with the ratchet teeth of the ratchet 2 at the first tooth end 12, and the other end is a first spring stop 13; a first spring 9 is provided between the spring stop and the first grip. The first spring 9 applies pressure to the first protrusion 6, so that the first tooth end 12 engages tightly with the ratchet teeth.

[0041] The second protrusion 7 is fixed to the side of the second grip near the main pivot via the second protrusion shaft 20. The second protrusion 7 can rotate slightly around the second protrusion shaft 20.

[0042] The second protrusion 7 engages with the ratchet teeth of the ratchet 2 at the second tooth end 14, and the other end is the second spring stop 15; a second spring 10 is provided between the spring stop and the second grip. The second spring 10 applies pressure to the second protrusion 7, so that the second tooth end 14 engages tightly with the ratchet teeth. When the clamp is gripped and the pliers are cutting, the second protrusion 7 pushes the ratchet 2 to rotate the blade 1 for cutting.

[0043] Blade 1 is L-shaped overall, with the outer edge of the protruding end of the L-shape in the middle of the blade being obtuse. When cutting hoses, the obtuse-angled blade makes it easier to create a puncture in the pipe, making the cut easier.

[0044] A return spring 8 is located at one end of the ratchet 2 near the slot 5 and is connected to the slot 5. When the clamp body is released, the return spring 8 pulls the ratchet 2 to reset it. The double spring structure ensures the angle of the grip opening and closing. The spring force and tension of the grip part are greater than those of the spring on the other side of the pivot, ensuring the angle of the grip opening, making it convenient to hold and more effortless.

[0045] In use, the hose to be cut is fixed in the slot 5 of the first clamp body 3. The operator grips the clamp body tightly, and the second protrusion 7 on the second clamp body 4 engages with the second ratchet 17. During the gripping process, the second protrusion 7 pushes the ratchet 2 to rotate, which in turn drives the blade 1 to rotate, performing the first end cut. After the first end cut is completed, the first protrusion 6 on the first clamp body 3 is pushed by the first spring 9 to engage with the first ratchet 16, locking the ratchet 2. At this time, the clamp body is released, and the second clamp body 4 returns to its original position. The second protrusion 7 on the second clamp body 4 engages with the next ratchet on the ratchet 2, namely the third ratchet 18. At this time, the clamp body is gripped again, and the second protrusion 7 pushes the ratchet 2 to rotate again. The blade 1 rotates to complete the second end cut. At this time, the blade 1 completely cuts the entire hose, and the first protrusion 6 on the first clamp body 3 engages with the second ratchet 17.

[0046] After cutting is completed, the hose cutter is reset. The reset process is as follows: First, open the first clamp 3 and the second clamp 4. The second protrusion 7 on the second clamp 4 disengages from the ratchet. At this time, press down one end of the first spring stop 13 of the first protrusion 6 to release the lock of the first protrusion 6 on the ratchet 2. The ratchet 2 is rotated to the open state by the reset spring 8, thus completing the reset of the hose cutter.

[0047] Example 3: A segmented hose cutter includes a first clamping body 3 and a second clamping body 4 connected by a main rotating shaft; the main rotating shaft is also provided with an L-shaped blade 1, and a ratchet 2 is provided at the connection between the blade 1 and the main rotating shaft; the first clamping body 3 and the second clamping body 4 are respectively provided with a first protrusion 6 and a second protrusion 7 that engage with the ratchet teeth of the ratchet 2. The ratchet 2 is provided with three ratchet teeth at equal intervals, which are the first ratchet tooth 16, the second ratchet tooth 17 and the third ratchet tooth 18 from near to far from the blade 1.

[0048] The first clamp body 3 is divided into a first grip and a slot 5 with the main rotating shaft as the boundary. The slot 5 is a semi-circular fixing slot that limits the position of the hose.

[0049] A spring slot is provided on the side of the slot 5 near the main shaft, and a limit spring 11 is provided in the spring slot.

[0050] The second clamp body 4 is divided into a second grip and a limiting rod by the main rotating shaft. The end of the limiting rod away from the main rotating shaft abuts against the limiting spring 11. The limiting spring 11 restricts the rotation angle of the second clamp body 4 and acts as a buffer for the second clamp body 4 during the overall reset process of the hose cutter. A circular protruding spring base is provided at the connection between the limiting rod and the limiting spring 11 to fix the position of the spring and prevent the spring from being misaligned.

[0051] The first protrusion 6 is fixed to the side of the first grip near the main rotating shaft via the first protrusion shaft 19. The first protrusion 6 can rotate slightly around the first protrusion shaft 19 as the axis.

[0052] The first protrusion 6 engages with the ratchet teeth of the ratchet 2 at the first tooth end 12, and the other end is a first spring stop 13; a first spring 9 is provided between the spring stop and the first grip. The first spring 9 applies pressure to the first protrusion 6, so that the first tooth end 12 engages tightly with the ratchet teeth. The first spring stop 13 is provided with a circular boss-shaped spring base for positioning the spring and preventing spring misalignment.

[0053] The second protrusion 7 is fixed to the side of the second grip near the main pivot via the second protrusion shaft 20. The second protrusion 7 can rotate slightly around the second protrusion shaft 20.

[0054] The second protrusion 7 engages with the ratchet teeth of the ratchet 2 at the second tooth end 14, and the other end is a second spring stop 15; a second spring 10 is provided between the spring stop and the second grip. The second spring 10 applies pressure to the second protrusion 7, causing the second tooth end 14 to engage tightly with the ratchet teeth. When the clamp is gripped tightly for cutting, the second protrusion 7 pushes the ratchet 2 to rotate the blade 1 for cutting. The second spring stop 15 has a circular boss-shaped spring base for positioning the spring and preventing spring misalignment.

[0055] Blade 1 is L-shaped overall, with the outer edge of the protruding end of the L-shape in the middle of the blade being obtuse. When cutting hoses, the obtuse-angled blade makes it easier to create a puncture in the pipe, making the cut easier.

[0056] A return spring 8 is located at the end of the ratchet 2 near the slot 5 and is connected to the slot 5. When the clamp body is released, the return spring 8 pulls the ratchet 2 to reset it. The use of the return spring 8 for quick reset speeds up the operator's work and improves cutting efficiency. The clamp body is equipped with a gear locking mechanism, which uses a long pin-shaped locking pin.

[0057] In use, the hose to be cut is fixed in the slot 5 of the first clamp body 3. The operator grips the clamp body tightly, and the second protrusion 7 on the second clamp body 4 engages with the second ratchet 17. During the gripping process, the second protrusion 7 pushes the ratchet 2 to rotate, which in turn drives the blade 1 to rotate, performing the first end cut. After the first end cut is completed, the first protrusion 6 on the first clamp body 3 is pushed by the first spring 9 to engage with the first ratchet 16, locking the ratchet 2. At this time, the clamp body is released, and the second clamp body 4 returns to its original position. The second protrusion 7 on the second clamp body 4 engages with the next ratchet on the ratchet 2, namely the third ratchet 18. At this time, the clamp body is gripped again, and the second protrusion 7 pushes the ratchet 2 to rotate again. The blade 1 rotates to complete the second end cut. At this time, the blade 1 completely cuts the entire hose, and the first protrusion 6 on the first clamp body 3 engages with the second ratchet 17.

[0058] After cutting, the hose cutter is reset. The reset process is as follows: First, open the first clamp 3 and the second clamp 4. The second protrusion 7 on the second clamp 4 disengages from the ratchet. At this time, press down on one end of the first spring stop 13 of the first protrusion 6 to release the lock of the first protrusion 6 on the ratchet 2. The ratchet 2 is rotated to the open state by the reset spring 8, completing the reset of the hose cutter. The automatic reset design facilitates the next cut and improves overall work efficiency.

[0059] The above specific embodiments are merely preferred embodiments of this utility model, and are not intended to limit the specific implementation structure and scope of this utility model. In fact, some equivalent changes can be made according to the shape, structure, and design purpose of this utility model. Therefore, all equivalent changes made according to the shape, structure, and design purpose of this utility model should be included within the protection scope of this utility model, that is, these equivalent changes should all be protected by this utility model.

Claims

1. A segmented cutting hose cutter, characterized in that, It includes a first clamp body and a second clamp body connected by a main rotating shaft; the main rotating shaft is also provided with an L-shaped blade, and a ratchet is provided at the connection between the blade and the main rotating shaft; the first clamp body and the second clamp body are respectively provided with a first protrusion and a second protrusion that engage with the ratchet teeth of the ratchet.

2. The segmented hose cutter according to claim 1, characterized in that, The first clamp body is divided into a first grip and a slot, with the main rotating shaft as the boundary. The slot is a semi-circular fixing slot that limits the movement of the hose.

3. The segmented cutting hose cutter according to claim 2, characterized in that, A spring retaining groove is provided on the side of the slot near the main shaft, and a limit spring is provided in the spring retaining groove.

4. The segmented hose cutter according to claim 1, characterized in that, The second clamp body is divided into a second grip and a limiting rod with the main rotating shaft as the boundary. The end of the limiting rod away from the main rotating shaft is in contact with the limiting spring.

5. The segmented cutting hose cutter according to claim 1, characterized in that, The first protrusion is fixed to the side of the first grip near the main shaft via the first protrusion shaft.

6. The segmented hose cutter according to claim 1 or 5, characterized in that, The first protrusion engages with the ratchet teeth of the ratchet at the first end, and the other end is a first spring stop; a first spring is provided between the first spring stop and the first grip.

7. The segmented cutting hose cutter according to claim 1, characterized in that, The second protrusion is fixed to the second grip near the main pivot via the second protrusion shaft.

8. The segmented hose cutter according to claim 1 or 7, characterized in that, The second protrusion engages with the ratchet teeth of the ratchet at the second end, and the other end is a second spring stop; a second spring is provided between the second spring stop and the second grip.

9. The segmented cutting hose cutter according to claim 1, characterized in that, The blade is L-shaped overall, with the outer edge of the protruding L-shaped end in the middle of the blade being obtuse.

10. The segmented cutting hose cutter according to claim 1, characterized in that, A return spring is provided at the end of the ratchet near the slot, which is connected to the slot.

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