Modular device for damping a hand-held jigsaw

Abstract

The application discloses a kind of modularization devices for handheld reciprocating saw vibration reduction, it is related to the technical field of vibration reduction equipment, the scheme includes reciprocating saw body, further include shell, the front side of the shell detachably mounted with front cover, the inside of the shell is installed with damping mechanism, one end of the damping mechanism is installed with the clamping module for fixing reciprocating saw body, the inside of the shell is installed with the multifunctional mechanism matched with damping mechanism, the damping rod of the damping mechanism and damping spring synergistic effect, can efficiently absorb the vibration of reciprocating saw when working, significantly reduce the damage to user's arm, clamping module moves by the arc-shaped clamping plate driven by bidirectional screw rod, can stably clamp different models of reciprocating saw, multifunctional mechanism is operated by the energy of damping mechanism, through the ring-shaped air bag extruded by pressing plate, cooperate with airflow adjusting mechanism can realize heat dissipation or hand heating function, make full use of vibration energy.

Description

Technical Field

[0001] This invention relates to the field of vibration reduction equipment technology, specifically a modular device for vibration reduction of a handheld reciprocating saw. Background Technology

[0002] Handheld reciprocating saws are a common cutting tool that uses a motor to drive the saw blade in a high-speed reciprocating motion to perform cutting operations. Due to the impact and collision between the saw blade and the workpiece, as well as the inertia of the motor, reciprocating saws generate strong vibrations during operation. These vibrations are transmitted to the user's arm through the handle, and prolonged operation can easily lead to arm fatigue, numbness, and even occupational injuries.

[0003] Existing vibration damping methods for reciprocating saws mostly involve placing a single elastic element (such as a rubber pad or spring) inside the handle, which can only achieve basic vibration attenuation and has a limited damping effect. At the same time, this vibration energy is not effectively utilized, resulting in energy waste; moreover, existing vibration damping devices have limited functionality and cannot provide additional assistance for cutting operations. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a modular device for vibration reduction in handheld reciprocating saws, solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: a modular device for vibration reduction of a handheld reciprocating saw, comprising a reciprocating saw body and a housing, wherein a front cover is detachably installed on the front side of the housing, a vibration reduction mechanism is installed inside the housing, a clamping module for fixing the reciprocating saw body is installed at one end of the vibration reduction mechanism, a multi-functional mechanism that cooperates with the vibration reduction mechanism is installed inside the housing, and a handheld mechanism is installed on one side of the outer surface of the housing; The vibration damping mechanism includes a guide post fixedly connected inside the housing. A balance block is slidably sleeved on the outer side of the guide post. Multiple damping rods are fixedly connected between one side of the balance block and the inner wall of the housing. A vibration damping spring is provided on the other side of the balance block. An adjusting plate that cooperates with the vibration damping spring is threaded to one end of the guide post. Multiple connecting rods for installing clamping modules are fixedly connected to one side of the balance block. The damping rods and vibration damping spring can effectively absorb the vibration generated during the operation of the reciprocating saw, reducing injury to the user's arms.

[0006] The multifunctional mechanism includes an annular support fixedly connected to one side of the inner wall of the housing. An annular airbag is installed on one side of the annular support. A pressure plate for pressing the annular airbag is fixedly connected to one side of the balance block. An airflow regulating mechanism that cooperates with the annular airbag is installed on the top of the housing. Vertical tubes are fixedly connected to both ends of the airflow regulating mechanism. Multiple air holes are opened on one side of the vertical tubes. The vertical tubes are respectively installed on one side of the housing and on the clamping module. When the vibration damping mechanism is forced to run, it can squeeze the annular airbag. With the cooperation of the airflow regulating mechanism, airflow on both sides can be realized.

[0007] Preferably, both ends of the damping spring are fixedly connected to buffer pads, and the buffer pads respectively contact one side of the balance block and the adjusting plate, which facilitates increasing the damping effect.

[0008] Preferably, the airflow regulating mechanism includes a mounting base embedded in the top of the housing. Two valve seats are symmetrically fixedly connected to the bottom of the mounting base. A valve core is rotatably connected to the inside of each valve seat. A one-way valve is installed inside the valve core. A first connecting pipe and a second connecting pipe are respectively installed on both sides of the valve seat. Both first connecting pipes are connected to the inside of the annular airbag, and both second connecting pipes are connected to the corresponding vertical pipes. This facilitates the adjustment of the airflow direction according to different situations and improves practicality.

[0009] Preferably, a valve stem is mounted on the top of the valve core and is rotatably connected to the mounting base and the valve seat. Both valve stems are equipped with pulleys on their outer surfaces, and a synchronous belt is sleeved between the two pulleys. Rotating any valve stem can simultaneously drive both valve stems to rotate under the action of the pulleys and the synchronous belt, thereby driving both valve cores to rotate and changing the orientation of the one-way valve.

[0010] Preferably, the clamping module includes a first frame fixedly connected to one end of the connecting rod. A first bidirectional lead screw is vertically rotatably connected inside the first frame. Two second frames are symmetrically threaded onto the outer surface of the first bidirectional lead screw. A second bidirectional lead screw is horizontally rotatably connected inside the second frame. Two movable plates are symmetrically threaded onto the outer surface of the second bidirectional lead screw. An arc-shaped clamping plate is fixedly connected to one side of each movable plate, and a rubber anti-slip pad is fixedly connected to one side of each arc-shaped clamping plate. Rotating the first bidirectional lead screw adjusts the distance between the upper and lower arc-shaped clamping plates, while rotating the second bidirectional lead screw moves the two opposing arc-shaped clamping plates relative to each other. This facilitates the installation of the device on different models of reciprocating saws, improving practicality.

[0011] Preferably, two L-shaped rods are symmetrically fixedly connected to both sides of the outer surface of the first frame. One end of each L-shaped rod is rotatably connected to a corresponding vertical tube via a pivot. The L-shaped rod is provided with a damping pad that cooperates with the pivot, which can change the orientation of the air holes on the vertical tube to facilitate changing the airflow direction. The damping pad can provide damping and fix the angle of the vertical tube.

[0012] Preferably, the handheld mechanism includes a mounting plate fixedly connected to one side of the outer surface of the housing. The mounting plate is rotatably connected to a connecting seat via a rotating shaft. A handle is fixedly connected to the bottom end of the connecting seat. A positioning pin is threaded onto the outer surface of the connecting seat. The outer surface of the mounting plate has a plurality of positioning holes arranged in a ring array to cooperate with the positioning pin, which facilitates the user's grip and allows for adjustment of the grip angle for convenient use.

[0013] This invention provides a modular device for vibration damping in a handheld reciprocating saw. It offers the following advantages: This modular device for vibration reduction in handheld reciprocating saws can efficiently absorb vibrations during operation by using the damping rod and damping spring of the vibration reduction mechanism, significantly reducing damage to the user's arm. The adjustment plate can flexibly adjust the preload of the damping spring to adapt to different vibration scenarios. The clamping module moves the arc-shaped clamping plate through a two-way lead screw, which can stably clamp different models of reciprocating saws. The rubber anti-slip pad not only avoids damage to the equipment but also improves clamping stability. The multi-functional mechanism utilizes the energy generated during the operation of the vibration damping mechanism to compress the annular airbag through the pressure plate. Combined with the airflow regulation mechanism, it can achieve heat dissipation or hand heating functions, making full use of vibration energy. The handheld mechanism allows for an adjustable grip angle to suit different users' operating habits, improving grip comfort and ease of operation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention in use; Figure 2 This is a schematic diagram of the overall structure of the present invention; Figure 3 This is a schematic diagram of the internal structure of the housing of the present invention; Figure 4 This is a partial structural schematic diagram of the vibration reduction mechanism and the multifunctional mechanism of the present invention; Figure 5 This is a schematic diagram of the clamping module of the present invention; Figure 6 This is a schematic diagram of the internal structure of the airflow regulating mechanism of the present invention; Figure 7 This is a schematic diagram of the handheld mechanism of the present invention.

[0015] In the diagram, 1. Housing; 2. Front cover; 3. Vibration damping mechanism; 31. Guide post; 32. Balance block; 33. Damping rod; 34. Vibration damping spring; 35. Adjusting plate; 36. Connecting rod; 4. Clamping module; 41. First frame; 42. First double-acting lead screw; 43. Second frame; 44. Second double-acting lead screw; 45. Moving plate; 46. Arc-shaped clamping plate; 47. Rubber anti-slip pad; 48. L-shaped rod; 5. Multifunctional mechanism; 51. Annular support; 52. Annular airbag; 53. Pressure plate; 54. Airflow regulating mechanism; 541. Mounting seat; 542. Valve seat; 543. Valve core; 544. First connecting pipe; 545. Second connecting pipe; 546. Valve stem; 547. Synchronous belt; 55. Vertical pipe; 6. Handheld mechanism; 61. Mounting plate; 62. Connecting seat; 63. Handle; 64. Positioning pin. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0017] like Figures 1 to 4 As shown, a modular device for vibration damping of a handheld reciprocating saw includes a reciprocating saw body and a housing 1. A front cover 2 is detachably installed on the front side of the housing 1. A vibration damping mechanism 3 is installed inside the housing 1. The vibration damping mechanism 3 includes a guide post 31 fixedly connected inside the housing 1. A balance block 32 is slidably sleeved on the outer side of the guide post 31. Multiple damping rods 33 are fixedly connected between one side of the balance block 32 and the inner wall of the housing 1. A vibration damping spring 34 is provided on the other side of the balance block 32. An adjustment plate 35 that cooperates with the vibration damping spring 34 is threadedly connected to one end of the guide post 31. Multiple connecting rods 36 for installing a clamping module 4 are fixedly connected to one side of the balance block 32. Buffer pads are fixedly connected to both ends of the vibration damping spring 34. The corresponding buffer pads are in contact with one side of the balance block 32 and the adjustment plate 35, respectively.

[0018] During use, the damping rod 33 and the vibration damping spring 34 can absorb the vibration generated during the operation of the reciprocating saw, reducing damage to the user's arm. The preload of the vibration damping spring 34 can be adjusted by the adjustment plate 35.

[0019] like Figure 2 , Figure 3 and Figure 5As shown, a clamping module 4 for fixing the reciprocating saw body is installed at one end of the vibration damping mechanism 3. The clamping module 4 includes a first frame 41 fixedly connected to one end of the connecting rod 36. A first bidirectional lead screw 42 is vertically rotatably connected inside the first frame 41. Two second frames 43 are symmetrically threaded on the outer surface of the first bidirectional lead screw 42. A second bidirectional lead screw 44 is horizontally rotatably connected inside the second frame 43. Two moving plates 45 are symmetrically threaded on the outer surface of the second bidirectional lead screw 44. An arc-shaped clamping plate 46 is fixedly connected to one side of the moving plate 45. A rubber anti-slip pad 47 is fixedly connected to one side of the arc-shaped clamping plate 46.

[0020] The rotation of the first bidirectional lead screw 42, through the thread, can drive the upper and lower second frames 43 to move relative to each other, making it convenient to adjust according to the shape of the reciprocating saw. By placing the handle or housing of the reciprocating saw between the upper and lower arc-shaped clamping plates 46, rotating the two second bidirectional lead screws 44, through the thread, can drive the two opposing arc-shaped clamping plates 46 to move relative to each other, thereby stably clamping different models of reciprocating saws and improving practicality. The rubber anti-slip pads 47 provided can increase the friction between the arc-shaped clamping plates 46 and the reciprocating saw, which can not only prevent damage to the reciprocating saw, but also improve the clamping effect.

[0021] like Figure 3 , Figure 4 and Figure 6 As shown, a multi-functional mechanism 5 that cooperates with the vibration damping mechanism 3 is installed inside the housing 1. The multi-functional mechanism 5 includes an annular support 51 fixedly connected to one side of the inner wall of the housing 1. An annular airbag 52 is installed on one side of the annular support 51. A pressure plate 53 for pressing the annular airbag 52 is fixedly connected to one side of the balance block 32. An airflow regulating mechanism 54 that cooperates with the annular airbag 52 is installed on the top of the housing 1. Vertical tubes 55 are fixedly connected to both ends of the airflow regulating mechanism 54. Multiple air holes are opened on one side of the vertical tubes 55. The vertical tubes 55 are respectively installed on one side of the housing 1 and on the clamping module 4.

[0022] The vibration generated during the operation of the reciprocating saw will cause the balance block 32 in the vibration damping mechanism 3 to move passively back and forth. The reciprocating movement of the balance block 32 will cause the pressure plate 53 to squeeze the annular airbag 52 back and forth. At this time, with the cooperation of the airflow adjustment mechanism 54, the vertical pipes 55 on both sides can be used for air intake and exhaust respectively. For example, in summer, the vertical pipe 55 on the clamping module 4 will exhaust air, while the vertical pipe 55 on the side of the housing 1 will intake air. At this time, air can be blown towards the heat-generating position of the reciprocating saw to dissipate heat from the reciprocating saw. In addition, in winter, the airflow adjustment mechanism 54 can be used to make the vertical pipe 55 on the clamping module 4 intake air, while the vertical pipe 55 on the side of the housing 1 will exhaust air. The air heated by the heat generated by the reciprocating saw can be drawn away and blown towards the user's hands to heat the user's hands and improve comfort.

[0023] Furthermore, such as Figure 6 As shown, the airflow regulating mechanism 54 includes a mounting base 541 embedded in the top of the housing 1. Two valve seats 542 are symmetrically fixedly connected to the bottom of the mounting base 541. A valve core 543 is rotatably connected to the inside of each valve seat 542. A one-way valve is installed inside the valve core 543. A first connecting pipe 544 and a second connecting pipe 545 are respectively installed on both sides of the valve seat 542. Both first connecting pipes 544 are connected to the inside of the annular airbag 52, and both second connecting pipes 545 are connected to corresponding vertical pipes 55. A valve stem 546 is mounted on the top of the valve core 543 and rotatably connected to the inside of the mounting base 541 and the valve seats 542. Pulleys are mounted on the outer surfaces of both valve stems 546, and a synchronous belt 547 is sleeved between the two pulleys.

[0024] The two check valves facilitate the control of airflow direction, and rotating any valve stem 546 can drive the two valve stems 546 and valve core 543 to rotate synchronously with the help of the pulley and the timing belt 547, thereby enabling the two check valves to be adjusted synchronously for convenient operation.

[0025] Furthermore, such as Figure 5 As shown, two L-shaped rods 48 are symmetrically fixedly connected to both sides of the outer surface of the first frame 41. One end of the L-shaped rod 48 is rotatably connected to the corresponding vertical tube 55 through a rotating shaft. The inside of the L-shaped rod 48 is provided with a damping pad that cooperates with the rotating shaft.

[0026] The vertical tube 55 can be rotated according to the heating position of the reciprocating saw, so that the air hole of the vertical tube 55 is aligned with the heating position of the reciprocating saw, which can stably perform air blowing or exhaust. The damping pad is set to facilitate the fixation of the position of the vertical tube 55.

[0027] like Figure 1 and Figure 7 As shown, a handheld mechanism 6 is installed on one side of the outer surface of the housing 1. The handheld mechanism 6 includes a mounting plate 61 fixedly connected to one side of the outer surface of the housing 1. The mounting plate 61 is rotatably connected to a connecting seat 62 via a rotating shaft. A handle 63 is fixedly connected to the bottom end of the connecting seat 62. A positioning pin 64 is threadedly connected to the outer surface of the connecting seat 62. A plurality of positioning holes that cooperate with the positioning pin 64 are opened in a ring array on the outer surface of the mounting plate 61.

[0028] Users can hold the reciprocating saw with the handle 63 and then pick it up to perform cutting operations. The angle of the handle 63 can be adjusted by the positioning pin 64 and the positioning hole, making it convenient for users with different habits to use.

[0029] Working principle: First, rotate the first bidirectional lead screw 42 of the clamping module 4 to adjust the distance between the upper and lower second frames 43, place the reciprocating saw between the arc-shaped clamping plates 46, and then rotate the second bidirectional lead screw 44 to drive the moving plate 45 and the arc-shaped clamping plates 46 to move, and complete the stable fixation of the reciprocating saw through the rubber anti-slip pad 47. During operation, the vibration generated by the reciprocating saw causes the balance block 32 of the vibration damping mechanism 3 to slide back and forth along the guide post 31. The damping rod 33 and the vibration damping spring 34 absorb the vibration energy together. The buffer pad further optimizes the vibration damping effect. The adjustment plate 35 can adjust the preload of the vibration damping spring 34 as needed. When the balance block 32 moves back and forth, it squeezes the annular airbag 52 through the pressure plate 53. The one-way valve inside the valve core 543 of the airflow regulating mechanism 54 controls the airflow direction. Rotating the valve rod 546 can adjust the two valve cores 543 synchronously through the pulley and the synchronous belt 547, so that the vertical pipe 55 can achieve air intake or exhaust. With the help of the L-shaped rod 48, the angle of the vertical pipe 55 can be adjusted to specifically dissipate heat for the reciprocating saw or blow warm air to the user's hands. The user holds the device by gripping the handle 63 of the hand-held mechanism 6, rotates the connecting seat 62, and uses the positioning pin 64 to cooperate with the positioning hole of the mounting plate 61 to fix the required angle of the handle 63, ensuring convenient operation.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the scope of the invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A modular device for vibration damping of a handheld reciprocating saw, comprising a reciprocating saw body, characterized in that: It also includes a housing (1), a front cover (2) is detachably installed on the front side of the housing (1), a vibration damping mechanism (3) is installed inside the housing (1), a clamping module (4) for fixing the reciprocating saw body is installed at one end of the vibration damping mechanism (3), a multi-functional mechanism (5) that cooperates with the vibration damping mechanism (3) is installed inside the housing (1), and a hand-held mechanism (6) is installed on one side of the outer surface of the housing (1). The vibration damping mechanism (3) includes a guide post (31) fixedly connected inside the housing (1). A balance block (32) is slidably sleeved on the outside of the guide post (31). A plurality of damping rods (33) are fixedly connected between one side of the balance block (32) and the inner wall of the housing (1). A vibration damping spring (34) is provided on the other side of the balance block (32). An adjustment plate (35) that cooperates with the vibration damping spring (34) is threaded to one end of the guide post (31). A plurality of connecting rods (36) for installing the clamping module (4) are fixedly connected to one side of the balance block (32). The multifunctional mechanism (5) includes an annular support (51) fixedly connected to one side of the inner wall of the housing (1). An annular airbag (52) is installed on one side of the annular support (51). A pressure plate (53) for pressing the annular airbag (52) is fixedly connected to one side of the balance block (32). An airflow adjustment mechanism (54) that cooperates with the annular airbag (52) is installed on the top of the housing (1). Vertical tubes (55) are fixedly connected to both ends of the airflow adjustment mechanism (54). Multiple air holes are opened on one side of the vertical tube (55). The vertical tube (55) is installed on one side of the housing (1) and on the clamping module (4).

2. The modular device for vibration damping of a handheld reciprocating saw according to claim 1, characterized in that: Both ends of the damping spring (34) are fixedly connected to buffer pads, and the buffer pads are respectively in contact with one side of the balance block (32) and the adjusting plate (35).

3. The modular device for vibration damping of a handheld reciprocating saw according to claim 1, characterized in that: The airflow regulating mechanism (54) includes a mounting base (541) embedded in the top of the housing (1). Two valve seats (542) are symmetrically fixedly connected to the bottom of the mounting base (541). A valve core (543) is rotatably connected inside the valve seat (542). A one-way valve is installed inside the valve core (543). A first connecting pipe (544) and a second connecting pipe (545) are respectively installed on both sides of the valve seat (542). The two first connecting pipes (544) are connected to the inside of the annular airbag (52). The two second connecting pipes (545) are respectively connected to the corresponding vertical pipe (55).

4. The modular device for vibration damping of a handheld reciprocating saw according to claim 3, characterized in that: The valve core (543) is mounted on top of a valve stem (546) that is rotatably connected to the mounting base (541) and valve seat (542). Both valve stems (546) are mounted on the outer surfaces of their respective outer surfaces, and a timing belt (547) is fitted between the two valve stems.

5. The modular device for vibration damping of a handheld reciprocating saw according to claim 4, characterized in that: The clamping module (4) includes a first frame (41) fixedly connected to one end of the connecting rod (36). The first frame (41) is vertically rotatably connected to a first bidirectional lead screw (42). The outer surface of the first bidirectional lead screw (42) is symmetrically threaded to two second frames (43). The second frame (43) is horizontally rotatably connected to a second bidirectional lead screw (44). The outer surface of the second bidirectional lead screw (44) is symmetrically threaded to two moving plates (45). An arc-shaped clamping plate (46) is fixedly connected to one side of the moving plate (45). A rubber anti-slip pad (47) is fixedly connected to one side of the arc-shaped clamping plate (46).

6. The modular device for vibration damping of a handheld reciprocating saw according to claim 5, characterized in that: Two L-shaped rods (48) are symmetrically fixedly connected to the outer surfaces of the first frame (41). One end of the L-shaped rod (48) is rotatably connected to the corresponding vertical tube (55) through a rotating shaft. The L-shaped rod (48) is provided with a damping pad that cooperates with the rotating shaft.

7. The modular device for vibration damping of a handheld reciprocating saw according to claim 1, characterized in that: The handheld mechanism (6) includes a mounting plate (61) fixedly connected to one side of the outer surface of the housing (1). The mounting plate (61) is rotatably connected to a connecting seat (62) via a rotating shaft. A handle (63) is fixedly connected to the bottom end of the connecting seat (62). A positioning pin (64) is threadedly connected to the outer surface of the connecting seat (62). The outer surface of the mounting plate (61) is provided with a plurality of positioning holes in a ring array that cooperate with the positioning pin (64).

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