Chain saw protection device

Abstract

The utility model discloses a chain saw protection device which comprises a shell handle, an accelerator button and a protection button are connected to the shell handle in a rotating mode, the accelerator button and the protection button are oppositely arranged on the inner side and the outer side of the shell handle, an ejector rod is arranged on the protection handle, a guide rail and a limiting plate are arranged on the accelerator button, and the limiting plate is arranged on the ejector rod. The ejector rod can abut against the limiting plate. According to the accelerator control device, the protective button is arranged on the shell handle, limiting constraint can be formed on the accelerator button, the ejector rod is arranged on the protective button, the ejector rod is arranged above the limiting plate of the accelerator button, and under the condition that the protective button does not act, the accelerator button acts to enable the limiting plate to abut against the ejector rod; therefore, the accelerator button is limited and restrained.

Description

Technical Field

[0001] The utility model relates to the technical field of chain saws, in particular to a chain saw protective device. Background Art

[0002] There is a risk of accidental touching of the throttle button during the use of the chainsaw. As a high-power output tool, the output of the chainsaw will increase when the throttle button is accidentally touched, which can easily cause safety accidents.

[0003] For example, the publication number "CN219599808U" discloses "a safer and more comfortable chain saw structure", which includes a housing, a handle is provided on the left side of the housing, the top and bottom of the handle are fixedly connected to fixed blocks, the left sides of the two fixed blocks are penetrated and threaded with fixed bolts, the fixed bolts and the housing are penetrated and threaded, and the middle right side of the handle is fixedly connected to a rotating shaft, and the rotating shaft and the housing are penetrated and rotatably connected. However, in actual applications, there is a risk that the throttle button can be accidentally touched, resulting in a safety accident. Summary of the invention

[0004] In view of the problem in the prior art mentioned in the background technology that the throttle button may be accidentally touched, causing safety accidents, the utility model provides a chainsaw protection device, which can reduce the risk of accidental touching of the chainsaw during use and ensure the safety of the user during use.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions.

[0006] A chain saw protection device includes a housing handle, a throttle button and a protection button are rotatably connected to the housing handle, the throttle button and the protection button are arranged on the inner and outer sides of the housing handle relative to each other, a push rod is arranged on the housing handle, a guide rail and a limit plate are arranged on the throttle button, and the push rod can abut the limit plate. In the present application, by arranging the protection button on the housing handle, a limit constraint can be formed on the throttle button, a push rod is arranged on the protection button, wherein the push rod is arranged above the limit plate of the throttle button, when the protection button is not actuated, the action of the throttle button will cause the limit plate to abut the push rod, thereby forming a limit constraint on the throttle button, further, a guide rail is arranged on the throttle button, the guide rail and the limit plate are arranged adjacently, when the protection button rotates, it moves close to the guide rail, after the protection button rotates to the right position, the push rod is aligned with the guide rail, at this time, toggling the throttle button will cause the guide rail of the throttle button to move along the push rod, and the protection button loses the limit effect on the throttle button.

[0007] Preferably, the throttle button and the protection button are both connected with a reset member. The throttle button and the protection button are both provided with a reset member, wherein the reset member can drive the protection button and the throttle button to reset.

[0008] Preferably, the protection button includes a pressing plate, a spring seat is arranged on the side of the pressing plate away from the throttle button, and a spring is clamped on the spring seat. The protection button includes a pressing plate, wherein the pressing plate protrudes upward from the housing handle, when the user holds the housing handle, the spring is squeezed by the pressing plate, and when the user lets go, the spring drives the pressing plate to reset.

[0009] Preferably, the guide rail is an arc-shaped guide rail. Setting the guide rail as an arc-shaped guide rail can better adapt to the rotation action of the throttle button and avoid interference during the pressing process.

[0010] Preferably, the end of the push rod near the limit plate is provided with an inclined surface, and the side of the inclined surface near the guide rail is inclined toward the guide rail. The end surface of the push rod near the limit plate is provided with an inclined surface, and the setting of the inclined surface reduces the risk of interference between the end surface and the limit plate during the rotation of the push rod around the axis, thereby ensuring the smoothness of the action of the protection button.

[0011] Preferably, a protective mounting groove is provided on the shell handle, and a guide plate is provided in the protective mounting groove. A protective mounting groove is provided on the shell handle, wherein the protective mounting groove is used to give way to the pressing plate, and a guide plate is provided in the protective mounting groove, which is connected to the shell handle as an integral structure, guides the pressing plate, and limits the pressing plate, so that the pressing plate can only move in the vertical direction, avoiding the pressing plate being stuck with the opening of the protective mounting groove when being pressed into the protective mounting groove, thereby ensuring the smooth movement of the protective button.

[0012] Preferably, the chain saw side is also included, and the throttle button is arranged closer to the chain saw side than the guard button. The chain saw side is where the chain saw body is placed, and the guard button is arranged farther away from the chain saw side, so that during use, when holding, the palm can first contact the pressing plate to ensure safety.

[0013] Preferably, a slide groove is provided on the shell handle, wherein the slide groove is provided below the protection button, a limit rod is slidably connected in the slide groove, and a limit groove is provided at the end of the slide groove. A slide groove is provided on the shell handle, wherein the slide groove is provided below the protection button, a limit rod is slidably connected in the slide groove, the limit rod can slide in the slide groove, and a limit groove is provided at the end of the slide groove, when the limit rod moves to the limit groove, the limit groove can limit the limit rod, thereby fixing the limit rod at the end of the slide groove, when the limit rod is fixed at the end of the slide groove, pressing the protection button will be stuck, thereby avoiding directly holding the shell handle without knowing it, causing an accident.

[0014] Preferably, the limit rod is provided with a blocking block, and when the limit rod moves to the end of the slide slot, the blocking block can be engaged with the limit slot. The limit rod is provided with a blocking block, and the blocking block can be engaged with the limit slot. The blocking block is arranged at the end of the limit rod, and when the limit rod moves to the end of the slide slot, the limit rod can be pressed, so that the blocking block is engaged with the limit slot to complete the engagement connection.

[0015] Preferably, the slide groove is inclined, and the side of the slide groove close to the rotation axis of the protection button is inclined upward. The side of the protection button close to the slide groove is provided with a bevel, and the inclination of the bevel is greater than the inclination of the slide groove. The slide groove is inclined so that the limit rod can maintain a downward movement trend under the action of gravity, which can help the protection button to reset quickly. The inclination of the slide groove is less than the inclination of the bevel, thereby ensuring that the limit rod can slide smoothly.

[0016] The beneficial effects of the utility model are as follows:

[0017] (1) It can provide protection to avoid accidents caused by directly pressing the throttle button due to misoperation;

[0018] (2) It can ensure the smooth movement of the protection button and improve the stability of operation;

[0019] (3) It can further ensure safety and avoid accidents caused by directly holding the handle of the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an axonometric drawing of the utility model.

[0021] Figure 2 It is a local axonometric drawing of the utility model.

[0022] Figure 3 It is a front view of the utility model.

[0023] Figure 4 yes Figure 3 A partial enlarged view of point A in the middle.

[0024] Figure 5 yes Figure 1 Partial axonometric view of the middle housing handle.

[0025] Figure 6 It is a structural schematic diagram of Example 2.

[0026] Figure 7 This is a partial axonometric view of Example 2.

[0027] In the figure:

[0028] 1 housing handle, 11 protection installation slot, 12 guide plate, 13 slide slot, 14 limit slot;

[0029] 2 throttle button, 21 guide rail, 22 limit plate;

[0030] 3 protection button, 31 ejector rod, 311 inclined surface, 32 pressing plate, 33 spring seat, 34 bevel edge;

[0031] 4 limit rods, 41 stop blocks;

[0032] 5 Chainsaw side. DETAILED DESCRIPTION

[0033] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0034] Embodiment 1:

[0035] like Figure 1 , 2 As shown in Figure 3, a chain saw protection device includes a housing handle 1, a throttle button 2 and a protection button 3 are rotatably connected to the housing handle, the throttle button 2 and the protection button 3 are arranged on the inner and outer sides of the housing handle 1, a push rod 31 is arranged on the housing handle, a guide rail 21 and a limit plate 22 are arranged on the throttle button 2, and the push rod 31 can abut against the limit plate 22. The throttle button 2 and the protection button 3 are both connected to a reset member. The guide rail 21 is an arc-shaped guide rail 21.

[0036] In the present application, by setting a protective button 3 on the housing handle 1, a limit constraint can be formed on the throttle button 2, and a push rod 31 is set on the protective button 3, wherein the push rod 31 is set above the limit plate 22 of the throttle button 2. When the protective button 3 is not actuated, the action of the throttle button 2 will cause the limit plate 22 to abut against the push rod 31, thereby forming a limit constraint on the throttle button 2. Furthermore, a guide rail 21 is set on the throttle button 2, and the guide rail 21 and the limit plate 22 are adjacently arranged. When the protective button 3 rotates, the guide rail 21 and the limit plate 22 are adjacently arranged. When the throttle button 2 moves toward the guide rail 21 and the protective button 3 rotates into place, the push rod 31 is aligned with the guide rail 21. At this time, moving the throttle button 2 will cause the guide rail 21 of the throttle button 2 to move along the push rod 31, and the protective button 3 loses its limiting effect on the throttle button 2. Resetting components are provided on both the throttle button 2 and the protective button 3, wherein the reset component can drive the protective button 3 and the throttle button 2 to reset. Setting the guide rail 21 to an arc-shaped guide rail 21 can better adapt to the rotation action of the throttle button 2 and avoid interference during the pressing process.

[0037] like Figure 2 , 3As shown, the protection button 3 includes a pressing plate 32, and a spring seat 33 is arranged on the side of the pressing plate 32 away from the throttle button 2, and a spring is clamped on the spring seat 33. The protection button 3 includes a pressing plate 32, wherein the pressing plate 32 protrudes upward from the housing handle 1. When the user holds the housing handle 1, the spring is squeezed by the pressing plate 32, and when the user lets go, the spring drives the pressing plate 32 to return to its original position.

[0038] like Figure 2 , 3 As shown in FIG. 4 , the end of the push rod 31 close to the limit plate 22 is provided with an inclined surface 311, and the side of the inclined surface 311 close to the guide rail 21 is inclined toward the guide rail 21. The end surface of the push rod 31 close to the limit plate 22 is provided with an inclined surface 311, and the setting of the inclined surface 311 reduces the risk of interference between the end surface and the limit plate 22 during the rotation of the push rod 31 around the axis, thereby ensuring the smoothness of the action of the protection button 3.

[0039] like Figure 5 As shown, a protective mounting groove 11 is provided on the housing handle 1, and a guide plate 12 is provided in the protective mounting groove 11. The housing handle 1 is provided with a protective mounting groove 11, wherein the protective mounting groove 11 is used to make way for the pressing plate 32, and a guide plate 12 is provided in the protective mounting groove 11, and the guide plate 12 is connected to the housing handle 1 as an integral structure, guides the pressing plate 32, and limits the pressing plate 32, so that the pressing plate 32 can only move in the vertical direction, and avoids the pressing plate 32 being stuck with the opening on the protective mounting groove 11 when being pressed into the protective mounting groove 11, thereby ensuring the smooth movement of the protective button 3.

[0040] like Figure 1 , 2 As shown, the chain saw side is also included, and the throttle button 2 is arranged closer to the chain saw side than the protection button 3. The chain saw side is where the chain saw body is placed, and the protection button 3 is arranged farther away from the chain saw side, so that during use, when holding, the palm can first contact the pressing plate 32 to ensure safety.

[0041] The assembly and working process of the chainsaw guard in this embodiment are as follows: In this embodiment, a shell handle 1 is provided, wherein a guard mounting groove 11 is provided on the shell handle 1, a guard button 3 is provided in the guard mounting groove 11, a guard mounting seat for rotatably connecting the guard button 3 is provided in the shell handle 1, wherein a throttle mounting seat is also provided in the shell handle 1, and a throttle button 2 is rotatably connected to the throttle mounting seat, wherein the throttle button 2 is arranged downward, and the guard button 3 is arranged upward, and in the initial state, the guard button 3 and the throttle button 2 are partially exposed from the shell handle 1, wherein the guard button 3 and the throttle button 2 are provided with corresponding reset parts, and the guard button 3 includes a pressing plate 32 for pressing, and a spring seat 33 is provided on the side of the pressing plate 32 away from the throttle button 2, wherein the spring seat 33 is arranged obliquely, and a spring is connected to the spring seat 33, and reset is performed by the spring.

[0042] Specifically, in the present embodiment, a push rod 31 is arranged on the protection button 3, and the rotation axis of the protection button 3 is arranged farther away from the chain saw side than the rotation axis of the throttle button 2, and a guide rail 21 is arranged on the throttle button 2, which is closer to the push rod 31, wherein the guide rail 21 is arc-shaped, and a limiting plate 22 is arranged on the end of the guide rail 21 close to the side of the push rod 31. In the initial state, the push rod 31 on the protection button 3 is arranged above the limiting plate 22. When the protection button 3 does not move and only the throttle button 2 is pressed, the throttle button 2 moves upward, and the limiting plate 22 will abut against the push rod 31, thereby limiting the throttle button 2 and preventing the throttle button 2 from outputting a signal, further A slope 311 is arranged on one side close to the guide rail 21, and the slope 311 is inclined toward the guide rail 21, so as to avoid interference between the protection button 3 and the limit plate 22 of the throttle button 2 during the action of the protection button 3. After the protection button 3 is pressed, the end of the push rod 31 gradually approaches the guide rail 21 and finally aligns with the opening of the guide rail 21. At this time, the throttle button 2 can be pulled, and the guide rail 21 on the throttle button 2 moves along the push rod 31, so as to realize the signal output of the throttle button 2. The throttle button 2 and the protection button 3 are respectively arranged on both sides of the housing handle 1. When using, the user can press the protection button 3 with the palm and wave the throttle button 2 with the finger to avoid accidental touch.

[0043] Embodiment 2:

[0044] like Figure 6 , 7As shown, different from the embodiment 1, in this embodiment, a slide groove 13 is provided on the housing handle 1, and the slide groove 13 is provided below the protection button 3. A limit rod 4 is slidably connected in the slide groove 13, and a limit groove 14 is provided at the end of the slide groove 13. A clamping block 41 is provided on the limit rod 4, and when the limit rod 4 moves to the end of the slide groove 13, the clamping block 41 can be engaged with the limit groove 14. The slide groove 13 is inclined, and the side of the slide groove 13 close to the rotation axis of the protection button 3 is inclined upward, and the side of the protection button 3 close to the slide groove 13 is provided with a bevel 34, and the inclination degree of the bevel 34 is greater than the inclination degree of the slide groove 13.

[0045] A slide groove 13 is arranged on the shell handle 1, wherein the slide groove 13 is arranged below the protection button 3, and a limit rod 4 is slidably connected in the slide groove 13, and the limit rod 4 can slide in the slide groove 13, and a limit groove 14 is arranged at the end of the slide groove 13. When the limit rod 4 moves to the limit groove 14, the limit groove 14 can limit and constrain the limit rod 4, thereby fixing the limit rod 4 at the end of the slide groove 13. When the limit rod 4 is fixed at the end of the slide groove 13, pressing the protection button 3 will be stuck, thereby avoiding directly holding the shell handle 1 without knowing it, causing an accident.

[0046] A locking block 41 is provided on the limit rod 4, and the locking block 41 can be engaged with the limit groove 14. The locking block 41 is provided at the end of the limit rod 4. When the limit rod 4 moves to the end of the slide groove 13, the limit rod 4 can be pressed, so that the locking block 41 is engaged with the limit groove 14 to complete the engagement connection.

[0047] The slide groove 13 is tilted so that the limit rod 4 can maintain a downward movement under the action of gravity, which can help the protection button 3 to quickly reset. The tilt of the slide groove 13 is smaller than the tilt of the bevel 34, thereby ensuring that the limit rod 4 can slide smoothly.

[0048] The assembly and working process of the chain saw guard in this embodiment are as follows: In this embodiment, a shell handle 1 is provided, wherein the shell handle 1 is provided with a guard mounting groove 11, a guard button 3 is provided in the guard mounting groove 11, a guard mounting seat for rotatably connecting the guard button 3 is provided in the shell handle 1, wherein a throttle mounting seat is also provided in the shell handle 1, and a throttle button 2 is rotatably connected to the throttle mounting seat, wherein the throttle button 2 is arranged downward, and the guard button 3 is arranged upward, and in the initial state, the guard button 3 and the throttle button 2 are partially exposed from the shell handle 1, wherein Corresponding reset parts are provided on the protection button 3 and the throttle button 2. In the present embodiment, the protection button 3 is reset by connecting a torsion spring on the rotating shaft. Furthermore, the shell handle 1 includes a slide groove 13 arranged below the pressing plate 32, and a limiting rod 4 is slidably connected in the slide groove 13, wherein the axis of the limiting rod 4 is parallel to the rotation axis of the protection button 3, and a locking block 41 is provided at the end of the limiting rod 4, and a limiting groove 14 is correspondingly provided at the end of the slide groove 13, wherein the limiting groove 14 can correspond to the locking block 41 for locking connection, thereby limiting the locking block 41 at the end of the slide groove 13.

[0049] Specifically, in the present embodiment, a push rod 31 is provided on the protection button 3, and the rotation axis of the protection button 3 is arranged farther away from the chain saw side than the rotation axis of the throttle button 2, and a guide rail 21 is provided on the throttle button 2, which is closer to the push rod 31, wherein the guide rail 21 is arc-shaped, and a limit plate 22 is provided on the end of the guide rail 21 close to the push rod 31. In the initial state, the push rod 31 on the protection button 3 is arranged above the limit plate 22. When the protection button 3 does not move and only the throttle button 2 is pressed, the throttle button 2 moves upward, and the limit plate 22 will abut against the push rod 31. Rod 31, thereby limiting the throttle button 2 and preventing the throttle button 2 from outputting a signal. Further, a side of the top rod 31 close to the guide rail 21 is provided with a slope 311, and the slope 311 is inclined toward the side of the guide rail 21, thereby avoiding interference between the protective button 3 and the limiting plate 22 of the throttle button 2 during the action of the protective button 3. Furthermore, in this embodiment, the limiting rod 4 is arranged between the top rod 31 of the protective button 3 and the pressing plate 32, and the slide groove 13 is inclined, and the inclination angle of the slide groove 13 is smaller than the inclination angle of the inclined edge 34 of the pressing plate 32 when it is not pressed.

[0050] During operation, when the chainsaw is not in use, the limit rod 4 moves to the end of the slide groove 13 under the action of the inclined slide groove 13. The user needs to move the limit rod 4 left and right to engage the locking block 41 to connect the limit groove 14. Therefore, the locking block 41 at the other end of the limit rod 4 will protrude from the slide groove 13. At this time, the limit rod 4 and the slide groove 13 are limited and constrained. The limit rod 4 is located below the pressing plate 32. At this time, the protective button 3 cannot be pressed, which avoids the user's forgetfulness or other people holding the outer shell handle 1 without knowing the specific situation, causing the chainsaw to output.

[0051] Under normal conditions, to start, it is necessary to first press the protruding end of the limit rod 4 to separate the blocking block 41 from the limit slot 14. At this time, the limit rod 4 can slide in the slide slot 13. Since the pressing plate 32 is provided with a beveled edge 34 on the side close to the limit rod 4, when the pressing plate 32 is pressed down, the beveled edge 34 will drive the limit rod 4 to slide in the slide slot 13. The limit rod 4 cannot form an obstruction effect on the pressing plate 32. The end of the push rod 31 gradually approaches the guide rail 21 and is finally aligned with the opening of the guide rail 21. When the throttle button 2 is in use, the guide rail 21 on the throttle button 2 moves along the push rod 31, thereby realizing the signal output of the throttle button 2, wherein the throttle button 2 and the protection button 3 are respectively arranged on both sides of the shell handle 1, and the user can press the protection button 3 with the palm of the hand and swing the throttle button 2 with the finger to avoid accidental touch. Furthermore, during the recovery process, if the pressing plate 32 is stuck or cannot be restored to its proper position, the pressing plate 32 can be reset by sliding the limit rod 4 to the end in the opposite direction.

Claims

1. A chain saw protective device, characterized in that: It includes a shell handle, on which a throttle button and a protection button are rotatably connected, the throttle button and the protection button are arranged on the inner and outer sides of the shell handle relative to each other, the shell handle is provided with a push rod, the throttle button is provided with a guide rail and a limit plate, and the push rod can abut against the limit plate.

2. A chainsaw guard according to claim 1, characterized in that: The throttle button and the protection button are both connected with a reset piece.

3. A chainsaw guard according to claim 2, characterized in that: The protection button includes a pressing plate, a spring seat is arranged on the side of the pressing plate away from the throttle button, and a spring is clamped on the spring seat.

4. A chainsaw guard according to claim 1, characterized in that: The guide rail is an arc-shaped guide rail.

5. A chainsaw guard according to claim 1, characterized in that: The end of the push rod close to the limiting plate is provided with an inclined surface, and a side of the inclined surface close to the guide rail is inclined toward the guide rail.

6. A chainsaw guard according to claim 1, characterized in that: The housing handle is provided with a protection installation groove, and a guide plate is provided in the protection installation groove.

7. A chainsaw guard according to claim 1, characterized in that: The utility model also includes a chain saw side, and the throttle button is arranged closer to the chain saw side than the protection button.

8. A chainsaw guard according to any one of claims 1 to 7, characterized in that: A slide groove is arranged on the housing handle, the slide groove is arranged below the protection button, a limiting rod is slidably connected in the slide groove, and a limiting groove is arranged at the end of the slide groove.

9. A chain saw guard according to claim 8, characterized in that: The limiting rod is provided with a locking block, and when the limiting rod moves to the end of the sliding groove, the locking block can be engaged with the limiting groove.

10. A chainsaw guard according to claim 8, characterized in that: The slide slot is tilted, and a side of the slide slot close to the rotation axis of the protection button is tilted upward. A bevel is provided on a side of the protection button close to the slide slot, and the inclination of the bevel is greater than that of the slide slot.

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