Impact tool
By introducing the first and second shock-absorbing components into the impact tool, the vibration of the power transmission mechanism is distributed, which solves the problem of poor shock absorption effect of traditional impact tools, achieves better handle shock absorption effect, and reduces the risk of vibration to the operator's hand.
Patent Information
- Application Number
- CN202422187980.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2034-09-06
AI Technical Summary
The shock absorption device of traditional impact tools is not effective, resulting in a high risk of vibration to the operator's hands.
A shock absorbing mechanism including first and second shock absorbing assemblies is adopted, which is connected to the main shell through the first elastic member, the second elastic member is connected to the handle, and the second shock absorbing assembly is connected to the power output mechanism to distribute the vibration of the power transmission mechanism to reduce the transmission to the handle.
The shock absorption effect at the handle is improved, reducing the risk of vibration to the operator's hand.
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Figure CN223339370U_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of handheld tools, in particular to an impact tool. Background Art
[0002] With the development of handheld tool technology, power tools with impact function have emerged. The impact force of power tools with impact function during operation will be transmitted to the handle, causing vibration to the hand of the operator holding the handle, posing a risk to the operator's hand.
[0003] In traditional technology, the vibration of the impact mechanism is transmitted to the handle through the main shell fixedly connected to the impact mechanism. The handle and the main shell are hinged at the lower end of the handle and the main shell, and the shock-absorbing member connected between the upper end of the handle and the main shell is used for shock absorption.
[0004] However, the current shock absorbing device has poor shock absorbing effect. Utility Model Content
[0005] Based on this, it is necessary to provide an impact tool to address the problem of poor shock absorption of handheld tools.
[0006] In order to solve the above technical problems, this application is implemented as follows:
[0007] In one embodiment, an impact tool is provided, comprising:
[0008] The main shell is provided with a receiving cavity;
[0009] a power output mechanism, at least partially received in the receiving chamber, the power output mechanism further having an impact axis, the power output mechanism moving relative to the main housing along the impact axis;
[0010] a handle connected to one end of the main housing;
[0011] The shock absorbing mechanism is at least partially accommodated in the accommodation cavity,
[0012] The shock absorbing mechanism includes a first shock absorbing assembly and a second shock absorbing assembly, the first shock absorbing assembly includes a first elastic member, a second elastic member and a connecting member connecting the first elastic member and the second elastic member, one end of the first elastic member is connected to the main shell, the end of the first elastic member away from the main shell is connected to the connecting member, one end of the second elastic member is connected to the handle, the end of the second elastic member away from the handle is connected to the connecting member, one end of the second shock absorbing assembly is connected to the power output mechanism, and the end of the second shock absorbing assembly away from the power output mechanism is connected to the connecting member.
[0013] Optionally, the first shock absorbing assembly is configured as a leaf spring, the first elastic member is configured as the lower end of the leaf spring connected to the main shell, the second elastic member is configured as the upper end of the leaf spring connected to the handle, and the connecting member is configured as the middle part of the leaf spring.
[0014] Optionally, one end of the first elastic member away from the connecting member is hinged to the main housing, and one end of the second elastic member away from the connecting member is hinged to the handle.
[0015] Optionally, the shock absorbing mechanism further includes a hinge, the second elastic member is fixedly connected to the hinge, and the hinge is hinged to the handle.
[0016] Optionally, the second shock absorbing assembly includes a third elastic member and a support member, the support member is fixedly connected to the power output mechanism, one end of the third elastic member is connected to the support member, and the other end of the third elastic member away from the support member abuts against the first shock absorbing assembly.
[0017] Optionally, the power output mechanism is provided with a first limiting portion protruding from the periphery, the first limiting portion is provided with an accommodating cavity, the support member is at least partially accommodated in the accommodating cavity to limit the forward and backward movement of the support member along the direction of the impact axis, and the outer side of the support member is also provided with a stop portion extending along the direction of the impact axis, the stop portion is formed by protruding along the inner wall of the main shell, and the stop portion limits the outward movement of the support member.
[0018] Optionally, the other end of the third elastic member away from the support member is fixedly connected to the first shock absorbing assembly; or, a positioning portion is configured on the side of the first shock absorbing assembly facing the third elastic member, and the positioning portion is sleeved with the third elastic member.
[0019] Optionally, the first elastic member is a compression spring, the second elastic member is a compression spring, the connecting member is fixedly connected to the first elastic member, and the connecting member is fixedly connected to the second elastic member.
[0020] Optionally, a buffer component is further included, which is clamped between the first shock absorbing assembly and the power output mechanism, and the buffer component is made of a soft material.
[0021] Optionally, one of the main housing and the power output mechanism is provided with a guide portion, and the other of the main housing and the power output mechanism is provided with a matching portion, the guide portion and the matching portion extend along the direction of the impact axis, and the matching portion and the guide portion are matched to limit the power output mechanism from moving relative to the main housing on a plane perpendicular to the impact axis. The main housing includes: a left housing, a right housing and a rear cover, the left housing is arranged on the left side of the right housing, and the rear cover is arranged on the rear side of the left housing and the right housing.
[0022] In the embodiment of the present application, the vibration of the power transmission mechanism is distributed, thereby reducing part of the vibration transmitted to the handle, thereby improving the shock absorption effect at the handle. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 A schematic diagram of the three-dimensional structure of an impact tool according to an embodiment of the present application;
[0024] Figure 2 A schematic diagram of a partial explosion structure of an impact tool according to an embodiment of the present application;
[0025] Figure 3 A schematic diagram of the three-dimensional structure of a power output mechanism according to an embodiment of the present application;
[0026] Figure 4 for Figure 1 Schematic diagram of the cross-sectional structure at AA in the middle;
[0027] Figure 5 This is a schematic diagram of the three-dimensional structure of the back cover of an embodiment of the present application;
[0028] Figure 6 A schematic cross-sectional view of an impact tool according to another embodiment of the present application;
[0029] Figure 7 A schematic cross-sectional view of an impact tool according to an embodiment of the present application;
[0030] Figure 8 This is a schematic diagram of the three-dimensional structure of a first shock-absorbing assembly according to an embodiment of the present application;
[0031] Figure 9 A schematic diagram of a portion of the structure of an impact tool according to an embodiment of the present application;
[0032] Figure 10 for Figure 9 Schematic diagram of the enlarged structure at point B in the middle. DETAILED DESCRIPTION
[0033] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.
[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.
[0036] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.
[0037] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.
[0038] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.
[0039] See Figure 1 and Figure 2 Figure 1 shows a perspective schematic diagram of an impact tool in one embodiment of the present application, and Figure 2 shows a partially exploded schematic diagram of the impact tool in one embodiment of the present application. The impact tool 100 is a type of electric tool that uses an electric motor as a drive source. In one embodiment of the present application, the impact tool 100 is an impact hammer used as an impact drilling tool. The impact tool 100 comprises: a main housing 1, a power output mechanism 2, a handle 3, a shock absorbing mechanism 4, and a switch assembly 5. The power output mechanism 2 includes a motor assembly 22, a transmission assembly 23, and a shift adjustment assembly 24.
[0040] The main housing 1 accommodates the motor assembly 22 , and the main housing 1 accommodates a portion of the transmission assembly 23 . The handle 3 is hinged to the main housing 1 .
[0041] The main shell 1 is made of nylon material and includes a left shell 12, a right shell 13 and a back cover 14. The left shell 12 is arranged on the left side of the right shell 13. The left shell 12 and the right shell 13 constitute a pair of half-split shells. The left shell 12 and the right shell 13 are fixed by multiple screws. The back cover 14 is arranged on the rear side of the left shell 12 and the right shell 13. The back cover 14 is fixed to the left shell 12 and the right shell 13 by multiple screws.
[0042] The main housing 1 has a receiving cavity 10 and a protruding portion 15 . The receiving cavity 10 includes a motor receiving portion 101 , a transmission receiving portion 102 and a shock absorbing mechanism receiving portion 103 .
[0043] The motor accommodating portion 101 accommodates the motor assembly 22 , the transmission accommodating portion 102 accommodates a portion of the transmission assembly 23 , and the damper mechanism accommodating portion 103 accommodates a portion of the damper mechanism 4 .
[0044] The protrusion 15 protrudes from the outside of the motor housing 101 , and is arranged on the rear side of the main housing 1 .
[0045] The handle 3 is gripped by the operator and is located on the rear side of the main housing 1. The handle 3 includes a grip portion 31 gripped by the operator, a controller housing 32 located below the grip portion 31, a hinge portion 33 extending forward from the front end of the controller housing 32, a battery adapter 34 extending downward from the lower end of the controller housing 32, and a connection portion 35 extending forward from the upper end of the grip portion 31. The front end of the connection portion 35 is connected to the main housing 1. The switch assembly 5 is located above the grip portion 31.
[0046] See Figure 3 , Figure 3 A three-dimensional schematic diagram of a power output mechanism in an embodiment of the present application is shown. The power output mechanism 2 includes: a motor housing 25 , a gear box 26 , and a transmission housing 27 .
[0047] The motor case 25 houses the motor, is disposed below the gear box 26 , and is fixed to the gear box 26 .
[0048] The gear box 26 houses part of the transmission assembly 23 . The gear box 26 is disposed on the upper side of the motor housing 25 , and the reduction gear box 26 is fixed to the motor housing 25 .
[0049] The gear case 26 is made of metal. Examples of the metal forming the gear case 26 include aluminum alloy and magnesium alloy.
[0050] The transmission housing 27 accommodates at least part of the transmission assembly 23. The transmission housing 27 has a first cylinder 271 and a second cylinder 272. The first cylinder 271 is arranged on the front side of the front end of the second cylinder 272. The rear end of the first cylinder 271 is fixedly connected to the front end of the second cylinder 272, and the lower end of the second cylinder 272 is fixedly connected to the upper end of the gear box 26.
[0051] The motor housing 25, the gear box 26, the second cylindrical portion 272 and the first cylindrical portion 271 are fixed together by a plurality of screws. The power transmission mechanism 2 is a single piece that transmits the impact force.
[0052] The power output mechanism 2 has an impact axis a. The power output mechanism 2 moves forward and backward along the direction of the impact axis a. The power output mechanism 2 is configured to be slidably connected to the main housing 1.
[0053] One of the main housing 1 and the power output mechanism 2 is provided with a guide portion 91, and the other of the main housing 1 and the power output mechanism 2 is provided with a matching portion 92. The guide portion 91 and the matching portion 92 extend in the direction of the impact axis a, and the matching portion 2 and the guide portion 1 are matched to limit the movement of the power output mechanism 2 relative to the main housing 1 in a plane perpendicular to the impact axis a.
[0054] See Figure 4 and Figure 5 In one embodiment, a guide portion 91 protrudes outward from the left side of the second cylindrical portion 272 of the power output mechanism 2, and a guide portion 91 protrudes outward from the right side of the second cylindrical portion 272 of the power output mechanism 2. The guide portion 91 is at least partially accommodated in the matching portion 92 of the inner wall of the main shell 1. The guide portion 91 extends in the direction of the impact axis a, and the matching portion 92 extends in the direction of the impact axis a. When the guide portion 91 moves back and forth in the direction of the impact axis a, at least part of the guide portion 91 abuts against the matching portion 92. Specifically, the lower end side of the guide portion 91 is an inclined surface, the inclined surfaces of the two guide portions 91 converge downward, the upper end side of the guide portion 91 is a horizontal surface, and the outer end side of the guide portion 91 is configured as a vertical surface. The lower end side of the matching portion 92 is an inclined surface, the inclined surfaces of the two matching portions 92 converge downward, the upper end side of the matching portion 92 is a horizontal surface, and the bottom side of the matching portion 92 is a vertical surface. The mating portion 92 restricts the guide portion 91 from moving within a plane perpendicular to the impact axis a. Of course, it is understood that the guide portion 91 can be provided on one or any combination of the first cylindrical portion 271, the second cylindrical portion 272, the gear box 26, and the motor housing 25, and is configured to be at least partially received by the mating portion 92 protruding from the inner wall of the main housing 1 at a corresponding position.
[0055] See Figure 6 In another embodiment, a guide portion 91 protrudes outward from the left side of the second cylindrical portion 272 of the power output mechanism 2, and a guide portion 91 protrudes outward from the right side of the second cylindrical portion 272 of the power output mechanism 2. A matching portion 92 protrudes inward from the inner sidewall of the main housing 1, and the guide portion 91 is disposed in front of the matching portion 92. A first opening 911 is disposed at the rear end of the guide portion 91, and a positioning post 921 is disposed at the front end of the matching portion 92. The front end of the positioning post 921 is at least partially inserted into the first opening 911. The distance from the bottom wall of the first opening 911 to the front end of the positioning post 921 is greater than or equal to the movement distance of the power output mechanism 2 relative to the main housing 1. Preferably, the positioning post 921 is movably connected to the coupling portion 92. A second opening 922 is disposed at the front end of the coupling portion 92. The distance between the bottom wall of the first opening 911 and the bottom wall of the second opening 922 is greater than or equal to the distance between the positioning post 921 and the bottom wall of the second opening 922 along the impact axis a. Preferably, the aperture of the first opening 911 is equal to the aperture of the second opening 922. It is understood that the guide portion 91 can be disposed on one or any combination of the first cylindrical portion 271, the second cylindrical portion 272, the gearbox 26, and the motor housing 25, and is configured to be at least partially received by the coupling portion protruding from the inner wall of the main housing 1 at the corresponding position.
[0056] See Figure 7In one embodiment, a smooth portion 251 is provided at the lower end of the motor housing 25. A first support portion 16 protrudes inward from the inner sidewall of the main housing 1. The upper end surface of the first support portion 16 abuts against the smooth portion 251 and is arranged parallel to the impact axis a. The inner sidewall of the main housing 1 has an inwardly protruding second support portion 17. The inward end surface of the second support portion 17 is arranged parallel to the impact axis a and restricts the left and right swing of the motor housing 25.
[0057] The shock absorbing mechanism 4 is at least partially disposed in the accommodating cavity 10 , a receiving portion of the shock absorbing mechanism 4 is connected to the power output mechanism 2 , and a supporting portion of the shock absorbing mechanism 4 is connected to the handle 3 and the main housing 1 .
[0058] Specifically, the shock absorbing mechanism 4 includes a first shock absorbing component 41 and a second shock absorbing component 42. One end of the first shock absorbing component 41 is fixedly connected to the main shell 1, and the other end is connected to the handle 3. One end of the second shock absorbing component 42 is connected to the power output mechanism 2, and the other end is fixedly connected to the first shock absorbing component 41.
[0059] Specifically, the first shock absorbing assembly 41 includes a first elastic member 411, a second elastic member 412, and a connecting member 412 connecting the first elastic member 411 and the second elastic member 412. One end of the first elastic member 411 is connected to the main housing 1, and the end of the first elastic member 411 away from the main housing 1 is connected to the connecting member 413. One end of the second elastic member 412 is connected to the handle 3, and the end of the second elastic member 412 away from the handle 3 is connected to the connecting member 413. One end of the second shock absorbing assembly 42 is connected to the power output mechanism 2, and the end of the second shock absorbing assembly 42 away from the power output mechanism 2 is connected to the connecting member 413. The first shock absorbing assembly 41 is formed roughly along the height direction.
[0060] See Figure 8 In one embodiment, the first shock absorbing assembly 41 is configured as a leaf spring, the first elastic member 411 is configured as a leaf spring connected to the lower end of the main shell 1, the second elastic member 412 is configured as a leaf spring connected to the upper end of the handle 3, and the connecting member 413 is configured as the middle part of the leaf spring.
[0061] It can be understood that the first elastic member 411, the second elastic member 412 and the connecting member 413 are integrally formed; or, the first elastic member 411 and the second elastic member 412 are integrally formed, and the connecting member 413 is fixed to the middle part of the leaf spring; or, the first elastic member 411 and the second elastic member 412 are separate leaf springs, and the connecting member 413 is fixed to the first elastic member 411 and the second elastic member 412 respectively.
[0062] The end of the first elastic member 411 remote from the connecting member 413 is hingedly connected to the main housing 1, and the end of the second elastic member 412 remote from the connecting member 413 is hingedly connected to the handle 3. Specifically, a third cylindrical portion 4111 is formed at the end of the first elastic member 411 connected to the main housing 1. The third cylindrical portion 4111 is configured as a curled and integrally formed end of the first elastic member 411, or it can be fixed to the end of the first elastic member 411. Two first pivot shafts 18 protrude inward from the inner wall of the main housing 1. The two first pivot shafts 18 are symmetrically arranged at both ends of the third cylindrical portion 4111 and are at least partially inserted into the third cylindrical portion 4111.
[0063] The shock absorbing mechanism 4 further includes a hinge 43, the second elastic member 412 is fixedly connected to the hinge 43, and the hinge 43 is hinged to the handle 3. The second elastic member 412 and the hinge 43 can be fastened by welding, riveting, screwing or other fastening methods.
[0064] Specifically, the second elastic member 412 is further configured with a bent portion 4121 at one end away from the connecting member 413. The bent portion 4121 is bent downward and perpendicular to the impact axis a. The second elastic member 412 is further configured with a first through hole 4122, which is configured on the bent portion 4121. The shock absorbing mechanism 4 also includes a fastener 44. The first shock absorbing assembly 41 is further configured with a second through hole 415. The diameter of the second through hole 415 is larger than the maximum diameter of the fastener 44. The fastener 44 passes through the second through hole 415 and is threadedly connected to the hinge 43. The hinge 43 is hingedly connected to the handle 3 at one end away from the second elastic member 412.
[0065] See Figure 9 and Figure 10 The second shock absorbing assembly 42 includes a third elastic member 421 and a support member 422. The support member 422 is fixedly connected to the power output mechanism 2. One end of the third elastic member 421 is connected to the support member 422. The other end of the third elastic member 421 away from the support member 422 abuts against the first shock absorbing assembly 41.
[0066] The power output mechanism 2 is provided with a first limiting portion 21 protruding from the outer periphery. The first limiting portion 21 is provided with a accommodating cavity 211. The support member 422 is at least partially accommodated in the accommodating cavity 211 to limit the forward and backward movement of the support member 422 along the direction of the impact axis a. The outer side of the support member 422 is also provided with an elastic member support portion 4221 extending along the direction of the impact axis a.
[0067] Specifically, a first limiting portion 21 protrudes from the outer peripheral wall of the power output mechanism 2. The first limiting portion 21 is configured with a support member receiving cavity 211, a first through slot 212, and a second through slot 213 for accommodating at least part of the support member 422. The receiving cavity 211, the first through slot 212, and the second through slot 213 are interconnected. A third elastic member support portion 4221 protrudes from the end of the support member 422 toward the third elastic member 421. The first end of the third elastic member 421 is fixedly connected to the third elastic member support portion 4221. Preferably, the third elastic member support portion 4221 is a cylindrical boss. The third elastic member 421 is configured as a compression spring. The third elastic member 421 is sleeved on the circumference of the third elastic member support portion 4221. The support member 422 is also configured with a fixing portion 4222. The width of the second through slot 283 is greater than the width of the third elastic member support portion 4221 and less than the width 4222 of the fixing portion. A gasket 43 is further provided between the second through slot 283 and the third elastic member 421 . The gasket 43 is clamped between the third elastic member 421 and the second limiting portion 28 .
[0068] The other end of the third elastic member 421 away from the support member 422 is fixedly connected to the first shock absorbing assembly 41 ; or, a positioning portion 414 is configured on one side of the first shock absorbing assembly 41 facing the third elastic member 421 , and the positioning portion 414 is sleeved with the third elastic member 421 .
[0069] Specifically, the third elastic member 421 is fixedly connected to the first shock absorbing assembly 41, which may be a threaded connection, welding, clamping, or other fixing methods. The positioning portion 414 can be configured on the first shock absorbing assembly 41, or configured on the inner wall of the main housing 1 and pass through the first shock absorbing assembly 41. The supporting force of the third elastic member 421 acts on the first shock absorbing assembly 41.
[0070] In another embodiment of the present application, the first elastic member 411 is a compression spring, the second elastic member 412 is a compression spring, and the connecting member 413 is fixedly connected to the first elastic member 411 and the second elastic member 412. The connecting member 413 is restricted from moving along the impact axis a.
[0071] The upper end of the second cylindrical portion 272 is further provided with an oil filling port 2721 and a sealing plug 2722 for sealing the oil filling port. The upper end of the main housing 1 is also provided with an oil filling hole 19. The left housing 12, the right housing 13, and the rear cover 14 enclose the oil filling hole 19. The sealing plug 2722 passes through the oil filling hole 19 and is fixedly connected to the oil filling port 2721. The sealing plug 2722 at least partially protrudes from the main housing 1. The oil filling hole 19 is also provided with a movable space for the sealing plug 2722 to move along the impact axis a. The sealing plug 2722 and the oil filling port 2721 can be connected by a threaded connection or a flexible connection such as an interference fit.
[0072] A buffer member 8 is further disposed between the first shock absorbing assembly 41 and the power output mechanism 2. The buffer member 8 can be fixedly connected to the first shock absorbing assembly 41 or to the power output mechanism 2. The buffer member 8 can be an elastic rubber member, a compression spring, or other elastic buffer member.
[0073] The inner wall of the main housing 1 is equipped with support ribs 1a, extending horizontally perpendicular to the impact axis a. The ribs 1a are integrally formed with the main housing 1. These ribs are positioned behind the first damping assembly 41. When the impact tool 100 is lifted by gripping the handle 3, the first damping assembly 41 abuts against the support ribs 1, reducing wear on the main housing 1.
[0074] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0075] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.
Claims
1. An impact tool comprising: The main housing (1) is provided with a receiving cavity (10); A power output mechanism (2) is at least partially accommodated in the accommodation cavity (10), the power output mechanism (2) further having an impact axis (a), and the power output mechanism (2) moves relative to the main housing (1) along the impact axis (a); A handle (3) connected to one end of the main housing (1); The shock absorbing mechanism (4) is at least partially accommodated in the accommodation cavity (10). The invention is characterized in that: the shock absorbing mechanism (4) includes a first shock absorbing component (41) and a second shock absorbing component (42); the first shock absorbing component (41) includes a first elastic member (411), a second elastic member (412) and a connecting member (413) connecting the first elastic member (411) and the second elastic member (412); one end of the first elastic member (411) is connected to the main housing (1); the end of the first elastic member (411) away from the main housing (1) is connected to the connecting member (413); one end of the second elastic member (412) is connected to the handle (3); the end of the second elastic member (412) away from the handle (3) is connected to the connecting member (413); one end of the second shock absorbing component (42) is connected to the power output mechanism (2); and the end of the second shock absorbing component (42) away from the power output mechanism (2) is connected to the connecting member (413).
2. The impact tool according to claim 1, wherein The first shock absorbing component (41) is configured as a leaf spring, the first elastic member (411) is configured as the lower end portion of the leaf spring connected to the main housing (1), the second elastic member (412) is configured as the upper end portion of the leaf spring connected to the handle (3), and the connecting member (413) is configured as the middle portion of the leaf spring.
3. The impact tool according to claim 2, wherein One end of the first elastic member (411) away from the connecting member (413) is hinged to the main housing (1), and one end of the second elastic member (412) away from the connecting member (413) is hinged to the handle (3).
4. The impact tool according to claim 2, wherein The shock absorbing mechanism (4) further comprises a hinged member (43), the second elastic member (412) is fixedly connected to the hinged member (43), and the hinged member (43) is hinged to the handle (3).
5. The impact tool according to claim 1, wherein The second shock absorbing assembly (42) comprises a third elastic member (421) and a support member (422), wherein the support member (422) is fixedly connected to the power output mechanism (2), one end of the third elastic member (421) is connected to the support member (422), and the other end of the third elastic member (421) away from the support member (422) abuts against the first shock absorbing assembly (41).
6. The impact tool according to claim 5, wherein The power output mechanism (2) is provided with a first limiting portion (21) protruding from the outer periphery, the first limiting portion (21) is provided with a receiving cavity (211), the support member (422) is at least partially accommodated in the receiving cavity (211) to limit the forward and backward movement of the support member (422) along the direction of the impact axis (a), and the outer side of the support member (422) is further provided with a stop portion (11) extending along the direction of the impact axis (a), the stop portion (11) is formed by protruding along the inner wall of the main shell (1), and the stop portion (11) limits the outward movement of the support member (422).
7. The impact tool according to claim 5, wherein The other end of the third elastic member (421) away from the support member (422) is fixedly connected to the first shock absorbing assembly (41); or, a positioning portion (414) is provided on a side of the first shock absorbing assembly (41) facing the third elastic member (421), and the positioning portion (414) is sleeved with the third elastic member (421).
8. The impact tool according to claim 1, wherein The first elastic member (411) is a compression spring, the second elastic member (412) is a compression spring, the connecting member (413) is fixedly connected to the first elastic member (411), and the connecting member (413) is fixedly connected to the second elastic member (412).
9. The impact tool according to claim 1, wherein It also includes a buffer component (8), which is sandwiched between the first shock absorbing component (41) and the power output mechanism (2), and the buffer component (8) is made of a soft material.
10. The impact tool according to claim 1, wherein One of the main housing (1) and the power output mechanism (2) is provided with a guide portion (91), and the other of the main housing (1) and the power output mechanism (2) is provided with a matching portion (92), the guide portion (91) and the matching portion (92) extend along the direction of the impact axis (a), and the matching portion (92) and the guide portion (91) match to limit the power output mechanism (2) from moving relative to the main housing (1) on a plane perpendicular to the impact axis (a), and the main housing (1) includes: a left housing (13), a right housing (14) and a rear cover (15), the left housing (13) is arranged on the left side of the right housing (14), and the rear cover (15) is arranged on the rear side of the left housing (13) and the right housing (14).