Power tool

Abstract

The present invention provides a sander, comprising a housing part and a handle part connected to the housing part. The housing part comprises a sanding end and a housing on which the sanding end is arranged. The handle part comprises a handle housing. Vibration reduction structures capable of weakening vibration transmission are arranged on the handle part and between the handle part and the housing part. The vibration reduction structures produce a cushioning and energy-absorbing effect between an operator's hand and the handle part and between the handle part and the housing part, and during the operation of the sander, can absorb vibration transmitted from the housing part to the handle part and the vibration transmitted from the handle part to the operator's hand, thereby achieving the effect of reducing vibration of the handle part, improving grip feel, avoiding work fatigue, and preventing safety accidents such as loss of grip.

Description

A power tool Technical Field

[0001] This invention relates to a tool, and more specifically, to a power tool. Background Technology

[0002] A sander is a device used for surface polishing. During the processing of metal workpieces, burrs or uneven surfaces often exist, requiring sanding. Handheld sanders typically generate significant vibration during use because the sanding parts come into high-speed contact and friction with the uneven surface. This results in poor handling, fatigue, and potential slippage during prolonged use. Not only sanders, but other power tools also suffer from excessive vibration. Utility model patent CN208179227U discloses a handheld sander. This invention allows the sander head to easily sand areas difficult to reach with conventional sanders, such as large work surfaces, high positions, and confined spaces, by extending, shortening, and bending the connecting arm, thus improving accessibility and reducing operator workload and difficulty. However, this invention does not address the problem of excessive vibration in power tools. Summary of the Invention

[0003] Existing power tools vibrate significantly during use, resulting in poor hand feel and fatigue during prolonged use. To overcome this drawback, this invention provides a power tool that can reduce vibration transmission, decrease hand fatigue during use, and improve work comfort and efficiency.

[0004] The technical solution of this invention is: a power tool, comprising a first housing and a second housing connected to the first housing. The first housing includes a mounting end and a first housing with the mounting end. The second housing includes a second housing. A vibration damping structure is provided on the second housing and between the second housing and the first housing to reduce vibration transmission. The vibration damping structure provides buffering and energy absorption between the operator's hand and the second housing, and between the second housing and the first housing. During operation, it absorbs vibrations transmitted from the first housing to the second housing and from the second housing to the operator's hand, thereby reducing the vibration of the second housing, improving grip, preventing work fatigue, and preventing accidents such as slippage.

[0005] Preferably, the first and second shells are independent separate structures, connected to the first shell via a mating structure. The vibration damping structure includes a mating component located at the mating structure. Conventional power tools typically have the second and first shells integrally molded, which is not conducive to blocking vibration transmission from the first shell to the second shell. In this invention, the second and first shells are independent, unlike conventional power tools which require a mating structure for connection. Providing a vibration damping component at the mating structure effectively blocks the vibration transmission path at the connection point between the second and first shells, more effectively reducing vibration transmission between them.

[0006] Preferably, the mating structure includes a mating groove on the second housing and a mating protrusion on the first housing, the mating protrusion being adapted to the mating groove. The mating protrusion and the mating groove form a mating connection, thereby connecting the second housing and the first housing.

[0007] Alternatively, the mating structure includes a mating protrusion on the second housing and a mating groove on the first housing, wherein the mating protrusion and the mating groove are adapted to each other. A mating can still be formed even if the positions of the mating protrusion and the mating groove are interchanged.

[0008] Preferably, the mating parts are made of plastic or silicone. These mating parts can be independent components such as plastic or silicone parts, assembled at the mating structure between the second and first housings. Through their good elasticity, they generate corresponding shock absorption and energy dissipation effects, reducing vibration transmission between the first and second housings.

[0009] Alternatively, the mating parts are formed by coating and curing with a liquid adhesive. The mating parts formed by curing the liquid adhesive retain the elasticity of the adhesive, providing shock absorption and energy dissipation. Forming the mating parts by coating and curing with a liquid adhesive, without the need for processing into components, reduces costs.

[0010] Preferably, the shock-absorbing structure includes a soft rubber layer that covers the outside of the second housing. The soft rubber layer outside the second housing also constitutes a shock-absorbing structure, and the soft rubber layer can buffer and absorb the vibration transmitted from the second housing to the operator's hand through its own compression and deformation capacity.

[0011] Preferably, the soft rubber layer has an air cavity inside. The soft rubber layer with an internal air cavity has a stronger compressive energy deformation capacity, and better buffers and absorbs the vibration transmitted from the second shell to the operator's hand.

[0012] Preferably, the shock-absorbing structure includes a flexible section connected between the first housing and the second housing. The flexible section has a certain degree of flexibility and rigidity, and has a strong elastic deformation capacity, which can absorb energy through elastic deformation during the operation of the power tool, thereby reducing the vibration transmission between the first housing and the second housing.

[0013] Preferably, both the first housing and the second housing are two-half assembled structures. The first housing and the second housing are both assembled from paired half housings, which facilitates the assembly of internal parts of the power tool.

[0014] The beneficial effects of the present invention are as follows: The shock-absorbing structure generates a buffering and energy-absorbing effect between the operator's hand and the second shell, as well as between the second shell and the first shell. When the power tool is running, it can absorb the vibration transmitted from the first shell to the second shell and from the second shell to the operator's hand, thereby reducing the vibration of the second shell, improving the grip feel, avoiding work fatigue, and preventing safety accidents such as slipping out of the hand. Attached Figure Description

[0015] Figure 1 is a schematic diagram of one structure of the present invention.

[0016] Figure 2 is a schematic diagram of a split structure according to the present invention.

[0017] Figure 3 is a schematic diagram of the internal structure of the present invention.

[0018] Figure 4 is a schematic diagram of another internal structure of the present invention.

[0019] Figure 5 is a schematic diagram of another structure of the present invention.

[0020] Figure 6 is a schematic diagram of the structure of the present invention after the skin is removed in Example 5.

[0021] Figure 7 is a schematic diagram of one structure of the flexible sleeve in this invention.

[0022] Figure 8 is a schematic diagram of another structure of the flexible sleeve in this invention.

[0023] Figure 9 is a schematic diagram of the structure in Embodiment 7 of the present invention.

[0024] In the figure, 1-first shell, 101-mounting end, 102-first shell, 103-fitting protrusion, 104-motor, 105-adjustment button, 2-second shell, 201-second shell, 202-fitting groove, 203-battery pack, 204-lighting part, 205-control switch, 3-soft rubber layer, 301-air cavity, 4-fitting part, 5-flexible part, 501-end ring, 502-longitudinal strip, 503-flex rod. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0026] Example 1: As shown in Figures 1 to 3, a power tool includes a first housing 1 and a second housing 2, with the second housing 2 connected to the first housing 1. The first housing 1 includes a mounting end 101 and a first housing 102. The mounting end 101 is located on the first housing 102, and a motor 104 and a control board are installed inside the first housing 102. The output shaft of the motor 104 is mounted with a mounting base, forming the mounting end 101, which is used to mount grinding accessories such as grinding wheels or sanding belts. The control board is electrically connected to the motor 104 and has a speed adjustment button 105 for adjusting the output shaft speed of the motor 104. The speed adjustment button 105 protrudes outside the first housing 102. The second housing 2 includes a second housing 201, one end of which is connected to the first housing 102. The axis of the second housing 201 forms approximately a 90° angle with the axis of the first housing 102. A removable battery pack 203 is installed at the other end of the second housing 201. The second housing 201 also has a control switch 205 for starting and stopping the motor 104. The first shell 1 and the second shell 2 are separate and independent structures. The second shell 201 and the first shell 102 are assembled and connected together by a mating structure. The mating structure includes a mating groove 202 and a mating protrusion 103. The mating groove 202 is provided on the second shell 201, and the mating protrusion 103 is integrally formed with the first shell 102, fitting into the mating groove 202. Both the first shell 102 and the second shell 201 are two-half assembled structures. The first shell 102 is formed by assembling two half shells, and the second shell 201 is formed by assembling two handle half shells. Shock-absorbing structures are provided on the second shell 2 and between the second shell 2 and the mounting end 101 to reduce vibration transmission and reduce discomfort when holding the second shell 2. The shock-absorbing structure on the second shell 2 includes a soft rubber layer 3, which is formed by applying a liquid colloid to the second shell 201 and then curing it. The soft rubber layer 3 covers the outside of the second shell 201. The shock-absorbing structure between the second shell 2 and the mounting end 101 includes a mating part 4, which is embedded in the mating groove 202. The mating part 4 is an independent component, which is made of plastic or silicone and then assembled in the mating groove 202.

[0027] When this power tool is in operation, the mating part 4 generates corresponding shock absorption and energy absorption through its own good elasticity, reducing the vibration transmission between the first shell 1 and the second shell 2. The soft rubber layer 3 on the outside of the second shell 201 also constitutes a shock-absorbing structure. The soft rubber layer 3 can buffer and absorb the vibration transmitted from the second shell to the operator's hand through its own compression deformation capacity, further reducing the vibration of the second shell 2, improving the grip, avoiding work fatigue, and improving the safety of using the power tool.

[0028] Example 2: As shown in Figures 1 and 4, a power tool includes a first housing 1 and a second housing 2, with the second housing 2 connected to the first housing 1. The first housing 1 includes a mounting end 101 and a first housing 102. The mounting end 101 is located on the first housing 102, and a motor 104 and a control board are installed inside the first housing 102. The output shaft of the motor 104 is mounted with a mounting base, forming the mounting end 101, for mounting grinding accessories such as grinding wheels or sanding belts. The control board is electrically connected to the motor 104 and has a speed adjustment button 105 for adjusting the output shaft speed of the motor 104. The speed adjustment button 105 protrudes outside the first housing 102. The second housing 2 includes a second housing 201, one end of which is connected to the first housing 102. The axis of the second housing 201 forms approximately a 90° angle with the axis of the first housing 102. A removable battery pack 203 is installed at the other end of the second housing 201. The second housing 201 also has a control switch 205 for starting and stopping the motor 104. The first shell 1 and the second shell 2 are separate and independent structures. The second shell 201 and the first shell 102 are assembled and connected together by a fitting structure. The fitting structure includes a fitting groove 202 and a fitting protrusion 103. The fitting groove 202 is provided on the second shell 201, and the fitting protrusion 103 is integrally formed with the first shell 102, and the fitting protrusion 103 fits into the fitting groove 202. Both the first shell 102 and the second shell 201 are two-half spliced ​​structures. The first shell 102 is formed by splicing two half shells of the main shell, and the second shell 201 is formed by splicing two half shells of the handle. Shock-absorbing structures are provided on the second shell 2 and between the second shell 2 and the mounting end 101 to reduce vibration transmission and reduce discomfort when holding the second shell 2. The shock-absorbing structure on the second shell 2 includes a soft rubber layer 3. Unlike embodiment 1, in this embodiment, the soft rubber layer 3 is an injection-molded elastic rubber part. The soft rubber layer 3 also has an air cavity 301. The soft rubber layer 3 is fitted onto the second shell 201 and tightens by its own elasticity, thus tightly covering the outside of the second shell 201. The shock-absorbing structure between the second shell 2 and the mounting end 101 includes a mating part 4. The mating part 4 is embedded in the mating groove 202. The mating part 4 is an independent component, made of plastic or silicone and assembled in the mating groove 202.

[0029] When this power tool is in operation, the mating part 4 generates corresponding shock absorption and energy absorption through its own good elasticity, reducing the vibration transmission between the first shell 1 and the second shell 2. The soft rubber layer 3 on the outside of the second shell 201 also constitutes a shock-absorbing structure. The soft rubber layer 3 can buffer and absorb the vibration transmitted from the second shell to the operator's hand through its own compression deformation capacity, further reducing the vibration of the second shell 2, improving the grip, avoiding work fatigue, and improving the safety of using the power tool.

[0030] Example 3: As shown in Figure 1, a power tool includes a first housing 1 and a second housing 2, with the second housing 2 connected to the first housing 1. The first housing 1 includes a mounting end 101 and a first housing 102. The mounting end 101 is located on the first housing 102, and a motor 104 and a control board are installed inside the first housing 102. The output shaft of the motor 104 is mounted with a mounting base, forming the mounting end 101, which is used to mount grinding accessories such as grinding wheels or sanding belts. The control board is electrically connected to the motor 104 and has a speed adjustment button 105 for adjusting the output shaft speed of the motor 104. The speed adjustment button 105 protrudes outside the first housing 102. The second housing 2 includes a second housing 201, one end of which is connected to the first housing 102. The axis of the second housing 201 forms approximately a 90° angle with the axis of the first housing 102. A removable battery pack 203 is installed at the other end of the second housing 201. The second housing 201 also has a control switch 205 for starting and stopping the motor 104. The first shell 1 and the second shell 2 are separate and independent structures. The second shell 201 and the first shell 102 are assembled and connected together by a mating structure. The mating structure includes a mating groove and a mating protrusion. Unlike embodiment 1, in this embodiment, the mating groove is located on the first shell 102, and the mating protrusion is integrally formed with the second shell 201, with the protrusion fitting into the mating groove. Both the first shell 102 and the second shell 201 are two-half assembled structures. The first shell 102 is formed by assembling two half shells, and the second shell 201 is formed by assembling two handle half shells. Shock-absorbing structures are provided on the second shell 2 and between the second shell 2 and the mounting end 101 to reduce vibration transmission and reduce discomfort when holding the second shell 2. The shock-absorbing structure on the second shell 2 includes a soft rubber layer 3, which is formed by applying a liquid colloid to the second shell 201 and then curing it. The soft rubber layer 3 covers the outside of the second shell 201. The shock-absorbing structure between the second shell 2 and the mounting end 101 includes a mating part 4, which is embedded in the mating groove 202. The mating part 4 is an independent component, which is made of plastic or silicone and then assembled in the mating groove 202.

[0031] When this power tool is in operation, the mating part 4 generates corresponding shock absorption and energy absorption through its own good elasticity, reducing the vibration transmission between the first shell 1 and the second shell 2. The soft rubber layer 3 on the outside of the second shell 201 also constitutes a shock-absorbing structure. The soft rubber layer 3 can buffer and absorb the vibration transmitted from the second shell to the operator's hand through its own compression deformation capacity, further reducing the vibration of the second shell 2, improving the grip, avoiding work fatigue, and improving the safety of using the power tool.

[0032] Example 4: As shown in Figures 1 to 3, a power tool includes a first housing 1 and a second housing 2, with the second housing 2 connected to the first housing 1. The first housing 1 includes a mounting end 101 and a first housing 102. The mounting end 101 is located on the first housing 102, and a motor 104 and a control board are installed inside the first housing 102. The output shaft of the motor 104 is mounted with a mounting base, forming the mounting end 101, for mounting grinding accessories such as grinding wheels or sanding belts. The control board is electrically connected to the motor 104 and has a speed adjustment button 105 for adjusting the output shaft speed of the motor 104. The speed adjustment button 105 protrudes outside the first housing 102. The second housing 2 includes a second housing 201, one end of which is connected to the first housing 102. The axis of the second housing 201 forms approximately a 90° angle with the axis of the first housing 102. A removable battery pack 203 is installed at the other end of the second housing 201. The second housing 201 also has a control switch 205 for starting and stopping the motor 104. The first shell 1 and the second shell 2 are separate and independent structures. The second shell 201 and the first shell 102 are assembled and connected together by a mating structure. The mating structure includes a mating groove 202 and a mating protrusion 103. The mating groove 202 is provided on the second shell 201, and the mating protrusion 103 is integrally formed with the first shell 102, fitting into the mating groove 202. Both the first shell 102 and the second shell 201 are two-half assembled structures. The first shell 102 is formed by assembling two half shells, and the second shell 201 is formed by assembling two handle half shells. Shock-absorbing structures are provided on the second shell 2 and between the second shell 2 and the mounting end 101 to reduce vibration transmission and reduce discomfort when holding the second shell 2. The shock-absorbing structure on the second shell 2 includes a soft rubber layer 3, which is formed by applying a liquid colloid to the second shell 201 and then curing it. The soft rubber layer 3 covers the outside of the second shell 201. The shock-absorbing structure between the second shell 2 and the mounting end 101 includes a mating part 4, which is embedded in the mating groove 202. Unlike embodiment 1, in this embodiment, the mating part 4 is formed by coating and curing with liquid adhesive.

[0033] When this power tool is in operation, the mating part 4 generates corresponding shock absorption and energy absorption through its own good elasticity, reducing the vibration transmission between the first shell 1 and the second shell 2. The soft rubber layer 3 on the outside of the second shell 201 also constitutes a shock-absorbing structure. The soft rubber layer 3 can buffer and absorb the vibration transmitted from the second shell to the operator's hand through its own compression deformation capacity, further reducing the vibration of the second shell 2, improving the grip, avoiding work fatigue, and improving the safety of using the power tool.

[0034] Example 5: As shown in Figures 5 to 7, a power tool includes a first housing 1 and a second housing 2, with the second housing 2 connected to the first housing 1. The first housing 1 includes a mounting end 101 and a first housing 102. The mounting end 101 is located on the first housing 102, and a motor 104 and a control board are installed inside the first housing 102. The output shaft of the motor 104 is mounted with a mounting base, forming the mounting end 101, which is used to mount grinding accessories such as grinding wheels or sanding belts. The control board is electrically connected to the motor 104 and has a speed adjustment button 105 for adjusting the output shaft speed of the motor 104. The speed adjustment button 105 protrudes outside the first housing 102. The second housing 2 includes a second housing 201, one end of which is connected to the first housing 102. The axis of the second housing 201 forms approximately a 90° angle with the axis of the first housing 102. A removable battery pack 203 is installed at the other end of the second housing 201. The second housing 201 also has a control switch 205 for starting and stopping the motor 104. The first shell 1 and the second shell 2 are separate and independent structures. The second shell 201 and the first shell 102 are assembled and connected together by a mating structure. The mating structure includes a mating groove 202 and a mating protrusion 103. The mating groove 202 is provided on the second shell 201, and the mating protrusion 103 is integrally formed with the first shell 102, fitting into the mating groove 202. Both the first shell 102 and the second shell 201 are two-half assembled structures. The first shell 102 is formed by assembling two half shells, and the second shell 201 is formed by assembling two handle half shells. Shock-absorbing structures are provided on the second shell 2 and between the second shell 2 and the mounting end 101 to reduce vibration transmission and reduce discomfort when holding the second shell 2. The shock-absorbing structure on the second shell 2 includes a soft rubber layer 3, which is formed by applying a liquid colloid to the second shell 201 and then curing it. The soft rubber layer 3 covers the outside of the second shell 201.

[0035] Unlike Embodiment 1, the shock-absorbing structure between the second shell 2 and the mounting end 101 in this embodiment includes a flexible part 5, which connects the first shell 102 and the second shell 201. The flexible part 5 includes a flexible sleeve and a skin, with the skin covering the flexible sleeve. The flexible sleeve is a cage-shaped injection-molded part, including an end ring 501 and multiple parallel longitudinal strips 502. The end ring 501 is connected to both ends of the longitudinal strips 502, and the end ring 501 and the longitudinal strips 502 are integrally formed. The longitudinal strips 502 are evenly distributed in a ring around the axis of the flexible sleeve. The outer diameter of the end rings 501 is larger than the diameter of the annular surface formed by the longitudinal strips 502. The two end rings 501 are connected to the first housing 102 and the second housing 201 respectively. The inner walls of the first housing 102 and the second housing 201 are provided with grooves that fit the end rings 501. During assembly, the flexible part 5 is placed between the two half housings of the machine housing and the two half housings of the handle. When the half housings of the machine housing are assembled into the first housing 102 and the half housings of the handle are assembled into the second housing 201, the two end rings 501 are completely embedded in the grooves of the first housing 102 and the second housing 201 in a one-to-one correspondence, realizing the connection between the two ends of the flexible part 5 and the first housing 102 and the second housing 201.

[0036] When this power tool is in operation, the cage-like perforated structure provides the flexible sleeve with both rigidity and elasticity, effectively filtering vibrations from the first housing 1 and reducing vibration transmission between the first housing 1 and the second housing 2. The soft rubber layer 3 on the outside of the second housing 201 also forms a shock-absorbing structure. This layer can absorb and cushion vibrations transmitted from the second housing to the operator's hand through its own compression and deformation capabilities, further reducing vibrations in the second housing 2, improving grip, preventing work fatigue, and enhancing the safety of using the power tool.

[0037] Example 6: As shown in Figures 5 and 8, a power tool includes a first housing 1 and a second housing 2, with the second housing 2 connected to the first housing 1. The first housing 1 includes a mounting end 101 and a first housing 102. The mounting end 101 is located on the first housing 102, and a motor 104 and a control board are installed inside the first housing 102. The output shaft of the motor 104 is mounted with a mounting base, forming the mounting end 101, for mounting grinding accessories such as grinding wheels or sanding belts. The control board is electrically connected to the motor 104 and has a speed adjustment button 105 for adjusting the output shaft speed of the motor 104. The speed adjustment button 105 protrudes outside the first housing 102. The second housing 2 includes a second housing 201, one end of which is connected to the first housing 102. The axis of the second housing 201 forms approximately a 90° angle with the axis of the first housing 102. A removable battery pack 203 is installed at the other end of the second housing 201. The second housing 201 also has a control switch 205 for starting and stopping the motor 104. The first shell 1 and the second shell 2 are separate and independent structures. The second shell 201 and the first shell 102 are assembled and connected together by a mating structure. The mating structure includes a mating groove 202 and a mating protrusion 103. The mating groove 202 is provided on the second shell 201, and the mating protrusion 103 is integrally formed with the first shell 102, fitting into the mating groove 202. Both the first shell 102 and the second shell 201 are two-half assembled structures. The first shell 102 is formed by assembling two half shells, and the second shell 201 is formed by assembling two handle half shells. Shock-absorbing structures are provided on the second shell 2 and between the second shell 2 and the mounting end 101 to reduce vibration transmission and reduce discomfort when holding the second shell 2. The shock-absorbing structure on the second shell 2 includes a soft rubber layer 3, which is formed by applying a liquid colloid to the second shell 201 and then curing it. The soft rubber layer 3 covers the outside of the second shell 201.

[0038] In this embodiment, the shock-absorbing structure between the second shell 2 and the mounting end 101 includes a flexible part 5, which connects the first shell 102 and the second shell 201. The flexible part 5 includes a flexible sleeve and a skin, with the skin covering the flexible sleeve. Unlike embodiment 5, the flexible sleeve in this embodiment includes an end ring 501 and two parallel and equal-length flexible rods 503. The end ring 501 is connected to both ends of the flexible rods 503, and the end ring 501 and the flexible rods 503 are hinged to form a four-bar linkage. At both ends of a diagonal of this four-bar linkage, a return torsion spring is provided at the hinge point between the end ring 501 and the flexible rod 503. Two end rings 501 are connected to the first housing 102 and the second housing 201 respectively. The inner walls of the first housing 102 and the second housing 201 are provided with grooves that fit the end rings 501. During assembly, the flexible part 5 is placed between the two housing halves and the two handle halves. When the housing halves are assembled into the first housing 102 and the handle halves are assembled into the second housing 201, the two end rings 501 are completely embedded into the grooves of the first housing 102 and the second housing 201 in a one-to-one correspondence, so as to realize the connection between the two ends of the flexible part 5 and the first housing 102 and the second housing 201.

[0039] When this power tool is in operation, the flexible sleeve, being a self-resetting four-bar linkage mechanism, possesses both rigidity and elasticity, effectively filtering vibrations from the first housing 1 and reducing vibration transmission between the first housing 1 and the second housing 2. The soft rubber layer 3 outside the second housing 201 also constitutes a shock-absorbing structure. This layer can absorb and cushion vibrations transmitted from the second housing to the operator's hand through its own compression and deformation capabilities, further reducing vibrations in the second housing 2, improving grip, preventing work fatigue, and enhancing the safety of using the power tool.

[0040] Example 7: As shown in Figure 9, a power tool includes a first housing 1 and a second housing 2, with the second housing 2 connected to the first housing 1. The first housing 1 includes a mounting end 101 and a first housing 102. The mounting end 101 is located on the first housing 102, and a motor 104 and a control board are installed inside the first housing 102. The output shaft of the motor 104 is mounted with a mounting base, forming the mounting end 101, for mounting grinding accessories such as grinding wheels or sanders. The control board is electrically connected to the motor 104 and has a speed adjustment button 105 for adjusting the output shaft speed of the motor 104. The speed adjustment button 105 protrudes outside the first housing 102. The second housing 2 includes a second housing 201, one end of which is connected to the first housing 102. The axis of the second housing 201 forms approximately a 90° angle with the axis of the first housing 102. A removable battery pack 203 is installed at the other end of the second housing 201. The second housing 201 also has a control switch 205 for starting and stopping the motor 104. Unlike Embodiment 1, the second shell 2 also has an illumination part 204 facing the mounting end 101. The first shell 1 and the second shell 2 are separate structures, independent of each other. The second shell 201 and the first shell 102 are assembled and connected together by a fitting structure. The fitting structure includes a fitting groove 202 and a fitting protrusion 103. The fitting groove 202 is provided on the second shell 201, and the fitting protrusion 103 is integrally formed with the first shell 102, and the fitting protrusion 103 fits into the fitting groove 202. Both the first shell 102 and the second shell 201 are two-half spliced ​​structures. The first shell 102 is formed by splicing two half shells of the main shell, and the second shell 201 is formed by splicing two half shells of the handle. Shock-absorbing structures are provided on the second shell 2 and between the second shell 2 and the mounting end 101 to reduce vibration transmission and reduce discomfort when holding the second shell 2. The shock-absorbing structure on the second shell 2 includes a soft rubber layer 3, which is formed by applying a liquid colloid to the second shell 201 and then curing it. The soft rubber layer 3 covers the outside of the second housing 201. The shock-absorbing structure between the second housing 2 and the mounting end 101 includes a mating part 4, which is embedded in the mating groove 202. The mating part 4 is an independent component, made of plastic or silicone and assembled in the mating groove 202.

[0041] When this power tool is in operation, the mating part 4 generates corresponding shock absorption and energy absorption through its own good elasticity, reducing the vibration transmission between the first shell 1 and the second shell 2. The soft rubber layer 3 on the outside of the second shell 201 also constitutes a shock-absorbing structure. The soft rubber layer 3 can buffer and absorb the vibration transmitted from the second shell to the operator's hand through its own compression deformation capacity, further reducing the vibration of the second shell 2, improving the grip, avoiding work fatigue, and improving the safety of using the power tool.

Claims

1. A power tool, comprising a first housing (1) and a second housing (2) connected to the first housing (1), the first housing (1) comprising a mounting end (101) and a first housing (102) for which the mounting end (101) is disposed, the second housing (2) comprising a second housing (201), characterized in that, A shock-absorbing device capable of shock absorption transmission is provided between the first housing (102) and the second housing (201), or a shock-absorbing device capable of shock absorption transmission is provided on the first housing (102).

2. The power tool according to claim 1, characterized in that, The second housing (201) is connected to the first housing (102) by a mating structure, and the damping structure includes a mating member (4) provided at the mating structure.

3. The power tool according to claim 2, characterized in that, The mating structure includes a mating groove (202) on the second housing (201) and a mating protrusion (103) on the first housing (102), the mating protrusion (103) being adapted to the mating groove (202); or the mating structure includes a mating protrusion on the second housing (201) and a mating groove on the first housing (102), the mating protrusion being adapted to the mating groove.

4. The power tool according to claim 2, characterized in that, The hardness of the mating part (4) is less than that of the first shell (102) and the second shell (201).

5. The power tool according to claim 2, characterized in that, The mating part (4) is a plastic part or a silicone part.

6. The power tool according to claim 2, characterized in that, The mating part (4) is formed by coating and curing with liquid adhesive.

7. The power tool according to claim 1, characterized in that, The shock-absorbing structure includes a soft rubber layer (3), which covers the outside of the second shell (201).

8. The power tool according to claim 7, characterized in that, An air cavity (301) is provided inside the soft rubber layer (3).

9. The power tool according to claim 1, characterized in that, The shock-absorbing structure includes a flexible part (5) that connects the first housing (102) and the second housing (201).

10. The power tool according to any one of claims 1 to 9, characterized in that, The first housing (102) and the second housing (201) are fixed together by fasteners to form an integral housing.

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