Handheld portable tire grooving device

Abstract

The handheld portable tire grooving device comprises a transformer, a power connection trigger switch, a floating tool bit and an installation shell, a holding handle is arranged at one end of the installation shell, an opening is formed in the other end of the installation shell and used for installing the floating tool bit, and the power connection trigger switch is electrically connected with the floating tool bit in a dynamic and separable mode. The floating tool bit comprises a cutting blade, a fixed current-conducting plate, a movable current-conducting plate, a first tool apron and a second tool apron, the power connection trigger switch is fixed to the limit position where the movable current-conducting plate moves towards the interior of the mounting shell, and the movable current-conducting plate triggers a short circuit after making contact with the power connection trigger switch; locking blocks are arranged at the ends, extending out of the opening, of the first tool apron and the second tool apron, limiting grooves are formed in the locking blocks, first through holes are formed in the locking blocks, the two ends of the cutting blade are fixed to T-shaped connecting blocks, inserting grooves are formed in the heads of the T-shaped connecting blocks, second through holes are formed in the tails of the T-shaped connecting blocks, and shaft pins are assembled in the first through holes and the second through holes; the whole body is small and portable, and the cutter head is easy to install and convenient to use.

Description

Technical Field

[0001] This utility model belongs to the technical field of tire grooving tools, specifically a handheld portable tire grooving tool. Background Technology

[0002] Rubber tires are a crucial part of a vehicle's contact with the road surface. However, with increasing mileage, frequent friction wears down the tire tread pattern, leading to a continuous decrease in grip. This negatively impacts the stability and safety of vehicle braking and steering, and in wet, slippery, or emergency braking situations, can easily cause the vehicle to lose control and endanger personal safety. To improve this situation, the common method is to create tread patterns by grooving the tire surface. While traditional manual grooving is low-cost and simple, it relies heavily on human experience, resulting in inconsistent cutting quality and low efficiency. Existing tire grooving tools are often bulky, difficult to transport, and cumbersome to operate manually, failing to meet the needs for convenient and efficient tire maintenance. Utility Model Content

[0003] (1) Technical problems to be solved

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a handheld portable tire grooving tool, which aims to solve the technical problems of the existing technology.

[0005] (2) Technical solution

[0006] This utility model provides a handheld portable tire grooving tool, including a transformer, a power-on trigger switch electrically connected to the transformer output, a floating cutter head, and a mounting housing. One end of the mounting housing has a handle, and the other end is open for mounting the floating cutter head. The power-on trigger switch is dynamically and detachably electrically connected to the floating cutter head. The floating cutter head includes a cutting blade, a fixed conductive plate and a movable conductive plate that can slide relative to each other, and a first cutter holder and a second cutter holder for respectively fixing the two ends of the cutting blade. The power-on trigger switch is fixed to the movable conductive plate facing the mounting housing. At the extreme position of the internal movement, the movable conductive plate triggers a short circuit after contacting the power-on switch. Both the first and second tool holders have locking blocks at their protruding ends. The locking block has a limiting groove on the side away from the opening. The upper surface of the locking block has a first through hole that connects to the limiting groove. Both ends of the cutting blade are fixed to the T-shaped connecting block. The head of the T-shaped connecting block has an insertion groove that is perpendicular to the limiting groove. The tail of the T-shaped connecting block has a second through hole that aligns with the first through hole. The first and second through holes are fitted with shaft pins.

[0007] Preferably, the cutting blade includes a V-shaped cutting section and two fixing parts connected to both ends of the V-shaped cutting section for insertion and fixing in the insertion groove, the two fixing parts being arranged parallel to each other.

[0008] Preferably, the V-shaped cutting portion and the two fixing portions of the cutting blade are integrally formed.

[0009] Preferably, both the first through hole and the second through hole are parallel to the insertion slot.

[0010] Preferably, the first and second tool holders have the same structure, and there is an angle between the locking block and the extending direction of the first or second tool holder.

[0011] Preferably, the shaft pin includes a straight insertion portion for inserting through the first through hole and the second through hole, and a bent portion located at the upper end of the straight insertion portion, wherein the bending angle of the bent portion relative to the straight insertion portion is the same as the bending angle of the locking block relative to the first tool holder or the second tool holder.

[0012] Preferably, the transformer is equipped with a voltage adjustment knob, a working indicator light, and a voltage display screen.

[0013] (3) Beneficial effects

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This utility model allows users to easily use the mounting housing, unlike traditional bulky and labor-intensive grooving tools. The mounting housing, equipped with a handle, is easy to hold and control, expanding the flexibility of its use and reducing operational burden. Through a dynamic, detachable electrical connection design, the state of the floating cutter head is dynamically linked to the movable conductive plate and the power-on trigger switch. When the floating cutter head presses against the tire surface, it drives the movable conductive plate to move to its limit position, triggering a short circuit in the electrical connection. This causes the cutting blade to short-circuit and heat up, facilitating the cutting of the tire surface. It is convenient to use and provides smooth cutting operations. In addition, the locking blocks on the first and second cutter holders are securely assembled with the T-shaped connecting block that fixes the cutting blade using a shaft pin via a limiting groove and a first through hole. The limiting groove strictly limits the displacement direction of the cutting blade, keeping it stable when mounted on the first and second cutter holders. This ensures convenient installation and good connection stability. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a three-dimensional view of part of the structure of this utility model.

[0018] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0019] Figure 4 This is a partial structural diagram of a floating cutter head.

[0020] The components in the attached diagram are labeled as follows:

[0021] 1. Transformer; 11. Voltage adjustment knob; 12. Work indicator light; 13. Voltage display screen; 2. Power-on trigger switch; 3. Floating cutter head; 31. Cutting blade; 311. V-shaped cutting section; 312. Fixing section; 32. Fixed conductive plate; 33. Movable conductive plate; 34. First cutter holder; 35. Second cutter holder; 36. Locking block; 361. Limiting groove; 362. First through hole; 4. Mounting housing; 41. Grip handle; 5. T-shaped connecting block; 51. Insertion groove; 52. Second through hole; 61. Straight insertion section; 62. Bending section. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0023] Please see Figure 1-4 This utility model provides a handheld portable tire grooving tool, including a transformer 1, a power-on trigger switch 2 electrically connected to the output of the transformer 1, a floating cutter head 3, and a mounting housing 4. One end of the mounting housing 4 has a handle 41, and the other end is open for mounting the floating cutter head 3. The power-on trigger switch 2 is dynamically and detachably electrically connected to the floating cutter head 3. The floating cutter head 3 includes a cutting blade 31, a fixed conductive plate 32 and a movable conductive plate 33 that can slide relative to each other, and a first cutter holder 34 and a second cutter holder 35 for respectively fixing the two ends of the cutting blade 31. The power-on trigger switch 2 is fixed at the limit of the movable conductive plate 33's movement into the mounting housing 4. At the location, the movable conductive plate 33 triggers a short circuit after contacting the power-on trigger switch 2. The first blade holder 34 and the second blade holder 35 are both provided with locking blocks 36 at the ends of their openings. The locking block 36 is provided with a limiting groove 361 on the side away from the opening. The upper surface of the locking block 36 is provided with a first through hole 362 that connects to the limiting groove 361. The two ends of the cutting blade 31 are fixed on the T-shaped connecting block 5. The head of the T-shaped connecting block 5 is provided with an insertion groove 51 that is perpendicular to the limiting groove 361. The tail of the T-shaped connecting block 5 is provided with a second through hole 52 that aligns with the first through hole 362. The first through hole 362 and the second through hole 52 are provided with shaft pins.

[0024] The handheld portable tire grooving tool provided by this utility model can be used by simply holding the mounting housing 4. Unlike traditional grooving tools that are bulky and difficult to carry, the mounting housing 4, with its handle 41, is easy to hold and control, expanding the flexibility of its use and reducing the burden of operation. Through a dynamic and detachable electrical connection design, the state of the floating cutter head 3 is dynamically connected to the movable conductive plate 33 and the power-on trigger switch 2. When the floating cutter head 3 presses against the tire surface, it drives the movable conductive plate 33 to move to its limit position, triggering a short circuit in the electrical connection. This causes the cutting blade 31 to short-circuit and heat up, facilitating the cutting of the tire surface. It is convenient to use and the cutting operation is smooth. In addition, the locking blocks 36 on the first cutter holder 34 and the second cutter holder 35 are securely assembled with the T-shaped connecting block 5 that fixes the cutting blade 31 by means of the limiting groove 361 and the first through hole 362. The limiting groove 361 strictly limits the displacement direction of the cutting blade 31, keeping it in a stable state on the first cutter holder 34 and the second cutter holder 35. This ensures convenient installation and good connection stability.

[0025] like Figures 2 to 4 As shown, in this embodiment of the present invention, the cutting blade 31 includes a V-shaped cutting part 311 and two fixing parts 312 connected to both ends of the V-shaped cutting part 311 for insertion and fixing in the insertion groove 51. The two fixing parts 312 are arranged parallel to each other for easy insertion and fixing. During operation, the tip of the V-shaped cutting part 311 touches the tire surface, which can effectively disperse the cutting force, reduce the overall resistance of the cutting process, and make the cutting process smooth and continuous, conforming to the characteristics of the tire's curved surface. By setting the fixing parts 312 to be arranged parallel to each other, the parallel interlocking relationship can suppress the blade from displacement, shaking and other adverse conditions under complex working conditions such as radial reciprocating and tangential force throughout the operation, enhance the working stability of the blade, reduce the blade wear caused by abnormal vibration and friction, and extend the blade's service life.

[0026] It should be noted that the V-shaped cutting part 311 can also be a V-shaped shape, such as a U-shape. V-shaped and U-shaped variations have more flexible adaptation advantages in fitting the curvature of the tire surface. When dealing with different tire specifications and material differences, the groove depth and width can be evenly controlled, thereby improving the overall processing accuracy and quality stability.

[0027] In this embodiment of the utility model, the V-shaped cutting part 311 and the two fixing parts 312 of the cutting blade 31 are integrally formed, which ensures structural stability when heated and avoids easy breakage at the connection. When the cutting operation continues, the blade remains in a high-temperature heating state. The integrated structure enables the cutting blade 31 to maintain good stability at high temperature and avoids the risk of breakage at the connection due to temperature changes.

[0028] like Figure 4As shown, in this embodiment of the present invention, the first through hole 362 and the second through hole 52 are both parallel to the insertion groove 51. Due to the guiding and constraining properties of the parallel structure, the connection stability of the pin through the first through hole 362 and the second through hole 52 is synchronized with the stability of the insertion blade in the insertion groove 51. Under the impact of multiple external forces such as tangential force, radial force and irregular impact force caused by uneven tire material and surface undulation, the pin will not come out of the first through hole 362 and the second through hole 52, thereby enhancing the overall installation stability of the cutting head.

[0029] In this embodiment of the present invention, the first cutter holder 34 and the second cutter holder 35 have the same structure. The locking block 36 has an angle with the extension direction of the first cutter holder 34 or the second cutter holder 35. That is, the locking block 36 is bent at the end of the first cutter holder 34 or the second cutter holder 35 so that the tilt angle of the cutting blade 31 during use can adapt to the angle of the user holding the installation housing 4, avoiding adverse working conditions such as uneven wear and jamming caused by angle mismatch, improving the grooving accuracy and quality, and enhancing the user-friendliness of the equipment.

[0030] In this embodiment of the utility model, the shaft pin includes a straight insertion portion 61 for inserting through the first through hole 362 and the second through hole 52, and a bent portion 62 located at the upper end of the straight insertion portion 61. The bending angle of the bent portion 62 relative to the straight insertion portion 61 is the same as the bending angle of the locking block 36 relative to the first tool holder 34 or the second tool holder 35. Because the locking block 36 is in a bent state, it is easy to be blocked by the components of the mounting housing 4 when installing the shaft pin, which is inconvenient for the user to pick up and install. By setting the bent portion 62, the user can hold the shaft pin on the bent portion when picking up or installing it, so as to effectively avoid the mounting housing 4.

[0031] like Figure 1 As shown, in this embodiment of the utility model, the transformer 1 is equipped with a voltage adjustment knob 11, a work indicator light 12, and a voltage display screen 13. To meet the requirements of different tire materials, groove depths, and tread patterns, the output voltage can be adjusted by adjusting the knob, and the cutting head temperature can be selected accordingly. The constant temperature is automatically adjusted so that the cutting head can always be kept in the best working state, adapting to various working conditions. The work indicator light 12 and the voltage display screen 13 determine the power supply parameters and status suitable for the corresponding operation, ensuring efficient cutting operations and improving operational accuracy.

[0032] It should be noted that, for safety reasons, when the movement of the floating cutter head 3 is paused for more than 2 minutes, the transformer 1 system recognizes that the operation has stopped and the power supply automatically stops heating, which saves energy and is also safer.

[0033] The above description is merely a preferred embodiment of this application and is not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application shall fall within the scope of the technical solution of this application.

Claims

1. A hand-held portable tire slitter comprising: The utility model relates to a kind of electric cutting device, including transformer (1), electric contact trigger switch (2) electrically connected the output end of transformer (1), floating cutter head (3) and installation shell (4), the installation shell (4) one end is equipped with holding handle (41), the other end opening is used to install floating cutter head (3), electric contact trigger switch (2) and floating cutter head (3) dynamic separable electric connection, floating cutter head (3) includes cutting blade (31), fixed conductive plate (32) and movable conductive plate (33) can be relatively adhered and slide, and first blade seat (34) and second blade seat (35) for respectively fixed cutting blade (31) both ends, electric contact trigger switch (2) is fixed at the limit position of movable conductive plate (33) movement to installation shell (4) interior, after movable conductive plate (33) contact electric contact trigger switch (2), trigger short circuit, first blade seat (34) and second blade seat (35) both ends of opening are equipped with locking block (36), the side of locking block (36) away from opening is equipped with limit slot (361), the upper surface of locking block (36) is equipped with the first through-hole (362) that communicates limit slot (361), both ends of cutting blade (31) are fixed on T-shaped connecting block (5), the head of T-shaped connecting block (5) is equipped with the insertion slot (51) being opposite to limit slot (361), the tail of T-shaped connecting block (5) is equipped with the second through-hole (52) being positioned first through-hole (362) is equipped with shaft pin.

2. A hand-held portable tire sipe applicator according to claim 1 wherein: The cutting blade (31) includes a V-shaped cutting portion (311) and two fixed portions (312) connected to both ends of the V-shaped cutting portion (311) for insertion and fixation in the insertion slot (51), and the two fixed portions (312) are arranged in parallel with each other.

3. A hand-held portable tire sipe applicator according to claim 2 wherein: The V-shaped cutting portion (311) and the two fixed portions (312) of the cutting blade (31) are integrally formed.

4. A hand-held portable tire sipe applicator as defined in claim 1 wherein: The first through-hole (362) and the second through-hole (52) are relatively parallel with the insertion slot (51).

5. A hand-held portable tire sipe applicator as defined in claim 1 wherein: The first blade seat (34) and the second blade seat (35) are identical in structure, and there is an included angle between the extension direction of the locking block (36) and the first blade seat (34) or the second blade seat (35).

6. A hand-held portable tire sipe applicator as defined in claim 1 wherein: The shaft pin includes a straight insertion portion (61) for insertion through the first through-hole (362) and the second through-hole (52), and a bent portion (62) located at the upper end of the straight insertion portion (61), and the bending angle of the bent portion (62) relative to the straight insertion portion (61) is the same as the bending angle of the locking block (36) relative to the first blade seat (34) or the second blade seat (35).

7. A hand-held portable tire sipe applicator as defined in claim 1 wherein: The transformer (1) is provided with a voltage adjusting knob (11), a working indicator light (12) and a voltage display screen (13).

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