Electric impact ratchet wrench

Abstract

The utility model discloses an electric impact ratchet wrench. The electric impact ratchet wrench comprises a shell, a swing part, a one-way bearing, an output part, a driving assembly, a transmission shaft assembly and a hammering assembly. The swing part can be rotationally arranged on the shell in the first rotating direction and the second rotating direction. Wherein the one-way bearing comprises a bearing body, an inner ring and an outer ring, the bearing body is located between the inner ring and the outer ring and connected with the inner ring and the outer ring, the outer ring is embedded in the swing part and connected with the swing part, when the outer ring rotates in the first rotating direction, the bearing body locks and limits relative rotation of the inner ring and the outer ring, and when the outer ring rotates in the second rotating direction, the bearing body locks and limits relative rotation of the inner ring and the outer ring. And the bearing body is unlocked, and the outer ring can rotate relative to the inner ring. The output piece is embedded in the inner ring, the output piece is provided with a first screwing part and a second screwing part which are oppositely arranged in the first direction, and the first screwing part and the second screwing part are suitable for being connected with an external connecting piece. The one-way bearing can bear large hammering force, so that the hammering assembly can output large hammering force, and the output effect is improved.

Description

Technical Field

[0001] This application relates to the field of wrench technology, and more particularly to an electric impact ratchet wrench. Background Technology

[0002] In the prior art, wrenches have a built-in hammering mechanism that hammers the output component, thereby repeatedly amplifying the hammering force and increasing the output effect of the output component.

[0003] However, existing wrenches use ratchet drives, and the ratchet teeth are relatively thin, making them prone to damage under strong hammering forces. To ensure proper ratchet transmission, the hammering mechanism in existing wrenches outputs a relatively small hammering force, resulting in poor wrench performance. Utility Model Content

[0004] The purpose of this application is to at least solve the problem of poor output performance of wrenches in the prior art. This purpose is achieved through the following means:

[0005] This application discloses an electric impact ratchet wrench, comprising: a housing, a swing member, a one-way bearing, an output member, a drive assembly, a transmission shaft assembly, and a hammering assembly. The swing member is rotatably disposed in the housing along a first rotation direction and a second rotation direction, the first rotation direction and the second rotation direction being opposite. The one-way bearing includes a bearing body, an inner ring, and an outer ring. The bearing body is located between and connected to the inner and outer rings. The outer ring is embedded in and connected to the swing member. When the outer ring rotates along the first rotation direction, the bearing body locks and restricts the relative rotation of the inner and outer rings. When the outer ring rotates along the second rotation direction, the bearing body releases the lock, allowing the outer ring to rotate relative to the inner ring. The output member is embedded in the inner ring and has a first turning portion and a second turning portion arranged in opposite directions. The first turning portion and the second turning portion are respectively adapted to connect to an external component. The transmission shaft assembly is drively connected to the swing member and can drive the swing member to swing along the first rotation direction and the second rotation direction. The hammering assembly is driven to the drive assembly and is also driven to the drive shaft assembly, and is configured to hammer the drive shaft assembly.

[0006] The electric impact ratchet wrench of this application uses a one-way bearing for transmission. When the oscillating component drives the outer ring to rotate in the first rotation direction, the bearing body locks and restricts the relative rotation of the inner and outer rings. The hammering force is transmitted to the inner ring through the outer ring and the bearing body, and then to the output component through the inner ring. During the transmission of hammering force, the outer ring, bearing body, and inner ring are all subjected to circumferential force, resulting in a more uniform force distribution. Therefore, the one-way bearing can withstand a larger hammering force, enabling the hammering assembly of this embodiment to output a larger hammering force, thereby improving the output performance of the electric impact ratchet wrench of this embodiment.

[0007] In some embodiments, the bearing body includes a plurality of wedges and a connecting ring. The plurality of wedges are rotatably spaced along the circumferential direction of the one-way bearing. Each wedge includes a first abutting portion, a second abutting portion, and a third abutting portion connected to each other. The first abutting portion abuts against the outer ring. The distance between the first abutting portion and the second abutting portion is less than the distance between the first abutting portion and the third abutting portion. When the outer ring rotates along the first rotation direction, the third abutting portion abuts against the inner ring and restricts the relative rotation of the inner ring and the outer ring. When the outer ring rotates along the second rotation direction, the second abutting portion abuts against the inner ring and allows the outer ring to rotate relative to the inner ring. The connecting ring passes through each wedge and is connected to each wedge.

[0008] In some embodiments, the bearing body includes a plurality of locking components arranged sequentially along the circumferential direction of the one-way bearing. Each locking component includes a first locking member, a first elastic member, and a second locking member. Along the radial direction of the inner ring, the first locking member is connected to the inner ring. Along the circumferential direction of the one-way bearing, one end of the first locking member forms an inclined end face. The first elastic member abuts against the other end of the first locking member and the second locking member. The second locking member of each locking component is movably disposed on the adjacent locking component between a locked position and an unlocked position. The first locking member has an inclined end face, and the second locking member abuts against the outer ring. When the outer ring rotates along the first rotation direction, the second locking member can move to the locking position along the direction from the bottom end of the inclined end face to the top end of the inclined end face, and restrict the relative rotation of the inner ring and the outer ring. When the outer ring rotates along the second rotation direction, the second locking member can move to the unlocking position along the direction from the top end of the inclined end face to the bottom end of the inclined end face, and allow the outer ring to rotate relative to the inner ring. The first elastic member is in a compressed state, and the second locking member is in the unlocking position.

[0009] In some embodiments, the hammering assembly includes a hammering block and a second elastic member. The hammering block is drive-connected to the drive assembly and is movably disposed within the housing along a second direction between a connected position and a disconnected position. In the connected position, the hammering block is connected to the drive shaft assembly to drive the drive shaft assembly to rotate. In the disconnected position, the hammering block is separated from the drive shaft assembly. The hammering block is configured to move from the connected position to the disconnected position when the rotation of the drive shaft assembly is obstructed. The second direction is perpendicular to the first direction. The second elastic member is located within the housing and connected to the hammering block. The second elastic member is configured to drive the hammering block to move from the disconnected position to the connected position.

[0010] In some embodiments, the hammering assembly further includes a connector, the drive shaft assembly includes a drive shaft, the drive assembly includes a motor disposed within a housing and a central shaft drivenly connected to the motor, the hammering block is sleeved on the central shaft and can rotate relative to the central shaft; the outer circumferential surface of the central shaft is provided with a guide structure, the inner circumferential surface of the hammering block is provided with a limiting structure, the connector is slidably disposed on the guide structure and connected to the limiting structure, the axial direction of the central shaft is parallel to the second direction, and both the second direction and the circumferential direction of the central shaft intersect the extension direction of the guide structure; when the drive shaft assembly is obstructed from rotating at the connection position, the connector can slide on the guide structure and drive the hammering block to move toward the separation position.

[0011] In some embodiments, the guide structure includes a first slide groove, and the limiting structure includes a second slide groove. The second direction and the circumferential direction of the central axis both intersect the extending direction of the first slide groove. The connector is configured as a rolling ball rotatably disposed within the first and second slide grooves. In the connected position, the rolling ball is located at one end of the first slide groove near the drive shaft assembly and at one end of the second slide groove away from the drive shaft assembly. In the separated position, the rolling ball is located at one end of the first slide groove away from the drive shaft assembly and at one end of the second slide groove near the drive shaft assembly. The guide structure further includes a first retaining groove and a third slide groove. The first retaining groove is located radially along the central axis between the first and third slide grooves and communicates with both the first and third slide grooves. The first and third slide grooves are symmetrically arranged about the central axis of the first retaining groove. The limiting structure further includes a second slot and a fourth slide groove. The second slot is located radially between the second slide groove and the fourth slide groove along the central axis and is connected to the second slide groove and the fourth slide groove respectively. The second slide groove and the fourth slide groove are symmetrically arranged with the central axis of the second slot as the axis of symmetry.

[0012] In some embodiments, the oscillating member is provided with a first oscillating portion and a second oscillating portion, the first oscillating portion and the second oscillating portion being spaced apart circumferentially along the oscillating member. The transmission shaft assembly further includes an eccentric shaft, the eccentric shaft being disposed at one end of the transmission shaft opposite to the central shaft, the eccentric shaft being located between the first oscillating portion and the second oscillating portion, the eccentric shaft having a first abutting position and a second abutting position. The central shaft located at the first abutting position abuts against the first oscillating portion to drive the first oscillating portion to rotate along the first rotation direction, and the central shaft located at the second abutting position abuts against the second oscillating portion to drive the second oscillating portion to rotate along the second rotation direction.

[0013] In some embodiments, the output member has a first end and a second end that are arranged in opposite directions along the first direction, the first end and the second end being located on both sides of the swing member along the first direction, the first screwing portion being disposed at the first end, the second screwing portion being disposed at the second end, and the first screwing portion and the second screwing portion being adapted to be embedded in the external member.

[0014] In some embodiments, both the first screwing part and the second screwing part are provided with a stop hole, a third elastic member and a stop ball. A portion of the stop ball is located inside the stop hole, and another portion of the stop ball is located outside the stop hole. The third elastic member is disposed inside the stop hole and abuts against the stop ball. The third elastic member is in a compressed state so that the stop ball abuts against the inner wall surface of the stop hole.

[0015] In some embodiments, the first screwing part is a first mounting groove, the second screwing part is a second mounting groove, the output member has a first end and a second end disposed opposite to each other along the first direction, the first mounting groove is disposed at the first end, the second mounting groove is disposed at the second end, the first mounting groove and the second mounting groove both extend along the first direction, and the first mounting groove and the second mounting groove are respectively adapted to be sleeved on the external member. Attached Figure Description

[0016] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. Wherein:

[0017] Figure 1 This is a schematic diagram of an electric impact ratchet wrench according to some embodiments of this application;

[0018] Figure 2 for Figure 1 A schematic diagram of part of the structure of the electric impact ratchet wrench;

[0019] Figure 3 for Figure 2 A schematic diagram of part of the structure of the electric impact ratchet wrench;

[0020] Figure 4 This is a schematic diagram of a one-way bearing according to some embodiments of this application;

[0021] Figure 5 This is a schematic diagram of a one-way bearing according to other embodiments of this application;

[0022] Figure 6 This is a schematic diagram of the central axis of some embodiments of this application;

[0023] Figure 7 This is a half-sectional schematic diagram of the hammering block in some embodiments of this application;

[0024] Figure 8 for Figure 1 A half-section diagram of the output component;

[0025] Figure 9 This is a schematic diagram of the output component and the swing component according to other embodiments of this application;

[0026] Figure 10 for Figure 9 A half-section diagram of the output component.

[0027] The labels in the attached diagram are as follows:

[0028] 100. Electric impact ratchet wrench;

[0029] 1. Shell;

[0030] 2. Swinging component; 21. First swinging part; 22. Second swinging part;

[0031] 3. One-way bearing; 31. Bearing body; 311. Wedge; 3111. First abutment part; 3112. Second abutment part; 3113. Third abutment part; 312. Connecting ring; 313. Locking assembly; 3131. First locking element; 3132. First elastic element; 3133. Second locking element; 3134. Inclined end face; 32. Inner ring; 33. Outer ring;

[0032] 4. Output component; 41. First screwing part; 42. Second screwing part; 43. First end; 44. Second end; 45. Stop hole; 46. Third elastic element; 47. Stop ball; 48. First mounting groove; 49. Second mounting groove;

[0033] 5. Drive assembly; 51. Motor; 52. Central shaft; 53. Guide structure; 531. First slide groove; 532. First slot; 533. Third slide groove;

[0034] 6. Drive shaft assembly; 61. Drive shaft; 62. Eccentric shaft;

[0035] 7. Hammering assembly; 71. Hammering block; 72. Second elastic element; 73. Limiting structure; 731. Second slide groove; 732. Second slot; 733. Fourth slide groove; 74. Connector; 741. Rolling ball;

[0036] a. First rotation direction; b. Second rotation direction; c. First direction; d. Second direction. Detailed Implementation

[0037] Exemplary embodiments of this application will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of this application and to fully convey the scope of this application to those skilled in the art.

[0038] One-way bearings, also known as overrunning clutches or anti-reverse bearings, primarily function to allow rotation in one direction while preventing rotation in the opposite direction. In the prior art, one-way bearings are used to ensure stable operation of equipment and prevent the dangers of accidental reverse rotation. There is no existing record of one-way bearings being used in wrenches to superimpose and transmit hammering force.

[0039] In the prior art, wrenches have a built-in hammering mechanism that hammers the output component, thereby repeatedly amplifying the hammering force and increasing the output effect of the output component.

[0040] However, existing wrenches use ratchet drives, and the ratchet teeth are relatively thin, making them prone to damage under strong hammering forces. To ensure proper ratchet transmission, the hammering mechanism in existing wrenches outputs a relatively small hammering force, resulting in poor wrench performance.

[0041] To at least address the problem of poor output performance of existing wrenches, embodiments of this application propose an electric impact ratchet wrench 100, which has better output performance.

[0042] The electric impact ratchet wrench 100 of this application is described below with reference to the accompanying drawings.

[0043] Combination Figure 1 , Figure 2 and Figure 3 As shown, the electric impact ratchet wrench 100 of this application embodiment includes: a housing 1, a swing member 2, a one-way bearing 3, an output member 4, a drive assembly 5, a transmission shaft assembly 6, and a hammering assembly 7. The swing member 2 is rotatably disposed on the housing 1 along a first rotation direction a and a second rotation direction b, wherein the first rotation direction a and the second rotation direction b are opposite.

[0044] The one-way bearing 3 includes a bearing body 31, an inner ring 32, and an outer ring 33. The bearing body 31 is located between and connected to the inner ring 32 and the outer ring 33. The outer ring 33 is embedded in and connected to the swing member 2. When the outer ring 33 rotates in the first rotation direction a, the bearing body 31 locks and restricts the relative rotation of the inner ring 32 and the outer ring 33. When the outer ring 33 rotates in the second rotation direction b, the bearing body 31 is unlocked and the outer ring 33 can rotate relative to the inner ring 32.

[0045] The output component 4 is embedded in the inner ring 32. The output component 4 is provided with a first screwing part 41 and a second screwing part 42 arranged opposite to each other along the first direction c. The first screwing part 41 and the second screwing part 42 are respectively adapted to be connected to the external component.

[0046] The drive shaft assembly 6 is driven to the oscillating member 2 and is capable of driving the oscillating member 2 to oscillate along a first rotation direction a and a second rotation direction b. The hammering assembly 7 is driven to the drive assembly 5 and is also driven to the drive shaft assembly 6, and is configured to hammer the drive shaft assembly 6.

[0047] When the electric impact ratchet wrench 100 is working, the drive assembly 5 drives the hammering assembly 7 to move, the hammering assembly 7 drives the transmission shaft assembly 6 to move and hammers the transmission shaft assembly 6, and the transmission shaft assembly 6 can drive the swing member 2 to swing along the first rotation direction a and the second rotation direction b, and transmit the hammering force generated by the hammering assembly 7 to the swing member 2.

[0048] When the oscillating component 2 drives the outer ring 33 to rotate along the first rotation direction a, the bearing body 31 locks and restricts the relative rotation of the inner ring 32 and the outer ring 33. The hammering force is transmitted to the inner ring 32 through the outer ring 33 and the bearing body 31, and then to the output component 4 through the inner ring 32. During the transmission of the hammering force, the outer ring 33, the bearing body 31, and the inner ring 32 are all subjected to circumferential force, and the force on the outer ring 33, the bearing body 31, and the inner ring 32 is more even. Therefore, the one-way bearing 3 can bear a larger hammering force, thereby enabling the hammering assembly 7 of this embodiment to output a larger hammering force, and thus making the output effect of the electric impact ratchet wrench 100 of this embodiment better.

[0049] Furthermore, the transmission is carried out through a one-way bearing 3, which is easy to replace when damaged.

[0050] When the electric impact ratchet wrench 100 is in operation, the output component 4 is connected to a threaded component (e.g., a screw, bolt, etc.). When the oscillating component 2 drives the outer ring 33 to rotate in the second rotation direction b, the bearing body 31 is released from locking, and the outer ring 33 can rotate relative to the inner ring 32. Therefore, when the oscillating component 2 drives the outer ring 33 to rotate in the second rotation direction b, the outer ring 33 rotates in the second rotation direction b, while the inner ring 32 remains stationary. This prevents the inner ring 32 from reversing when tightening the threaded component, thereby increasing the thread-tightening effect of the electric impact ratchet wrench 100.

[0051] First rotation direction a Figure 1 As shown at point a, the second rotation direction is b. Figure 1 As shown at point b, the first direction c is as follows Figure 9 and Figure 10 As shown at point c. As some examples, the first rotation direction a, viewed from the first screwing part 41 towards the second screwing part 42, is clockwise; the second rotation direction b, viewed from the first screwing part 41 towards the second screwing part 42, is counterclockwise; and the first direction c is the extension direction of the output member 4. As other examples, the first rotation direction a, viewed from the first screwing part 41 towards the second screwing part 42, is counterclockwise; and the second rotation direction b, viewed from the first screwing part 41 towards the second screwing part 42, is clockwise.

[0052] When it is necessary to screw in or out a threaded part, the output part 4 is directly or indirectly connected to the threaded part. Indirect connection between the output part 4 and the threaded part can be achieved by connecting the output part 4 to the threaded part through an intermediate connector; as an example, the intermediate connector can be a sleeve.

[0053] Taking the first rotation direction a as a clockwise direction when viewed from the first screwing part 41 to the second screwing part 42, as an example. Combined with... Figure 1 , Figure 2 , Figure 3 and Figure 9 As shown, when a clockwise rotation needs to be applied to the threaded component, the second screwing part 42 is connected to the threaded component. Looking from the first screwing part 41 towards the second screwing part 42, the second screwing part 42 rotates clockwise to apply clockwise rotation to the threaded component. (Combined) Figure 1 , Figure 2 , Figure 3 and Figure 9 As shown, when it is necessary to apply counterclockwise rotation to the threaded part, the output part 4 is flipped or rotated 180 degrees to connect the first screwing part 41 to the threaded part. Looking from the second screwing part 42 towards the first screwing part 41, the first screwing part 41 rotates counterclockwise to apply counterclockwise rotation to the threaded part.

[0054] Taking the first rotation direction a, where the first screwing part 41 is viewed from the second screwing part 42 as a counterclockwise direction, as an example: When a clockwise rotation is required on the threaded part, the first screwing part 41 is connected to the threaded part. Looking from the second screwing part 42 towards the first screwing part 41, the first screwing part 41 rotates clockwise to apply clockwise rotation to the threaded part. When a counterclockwise rotation is required on the threaded part, the output part 4 is flipped or rotated 180 degrees, connecting the second screwing part 42 to the threaded part. Looking from the first screwing part 41 towards the second screwing part 42, the second screwing part 42 rotates counterclockwise to apply counterclockwise rotation to the threaded part.

[0055] Therefore, when the output component 4 rotates along the first rotation direction a, when the first screwing part 41 and the second screwing part 42 are connected to the threaded component respectively, the threaded component can rotate clockwise or counterclockwise.

[0056] like Figure 4As shown, in some embodiments, the bearing body 31 includes a plurality of wedges 311 and a connecting ring 312. The plurality of wedges 311 are rotatably arranged at intervals along the circumferential direction of the one-way bearing 3. Each wedge 311 includes a first abutting portion 3111, a second abutting portion 3112 and a third abutting portion 3113 connected to each other. The first abutting portion 3111 abuts against the outer ring 33. The distance between the first abutting portion 3111 and the second abutting portion 3112 is less than the distance between the first abutting portion 3111 and the third abutting portion 3113.

[0057] When the outer ring 33 rotates along the first rotation direction a, the third abutting part 3113 abuts against the inner ring 32 and restricts the relative rotation of the inner ring 32 and the outer ring 33. When the outer ring 33 rotates along the second rotation direction b, the second abutting part 3112 abuts against the inner ring 32 and allows the outer ring 33 to rotate relative to the inner ring 32. The connecting ring 312 passes through each wedge 311 and is connected to each wedge 311.

[0058] When the outer ring 33 rotates in the first rotation direction a, it drives the wedge block 311 to rotate because it abuts against the first abutting part 3111, causing the third abutting part 3113 of the wedge block 311 to abut against the inner ring 32. When the inner ring 32 rotates in the second rotation direction b, it drives the wedge block 311 to rotate because it abuts against the first abutting part 3111, causing the second abutting part 3112 of the wedge block 311 to abut against the inner ring 32.

[0059] The distance between the first abutting part 3111 and the second abutting part 3112 is less than the distance between the first abutting part 3111 and the third abutting part 3113. In other words, the distance between the first abutting part 3111 and the second abutting part 3112 is smaller, while the distance between the first abutting part 3111 and the third abutting part 3113 is larger.

[0060] When the third abutting part 3113 abuts against the inner ring 32, since the distance between the first abutting part 3111 and the third abutting part 3113 is large, the wedge block 311 clamps the inner ring 32 and the outer ring 33 through the third abutting part 3113 and the first abutting part 3111, thereby locking the bearing body 31 and restricting the relative rotation of the inner ring 32 and the outer ring 33.

[0061] When the second abutting part 3112 abuts against the inner ring 32, since the distance between the first abutting part 3111 and the second abutting part 3112 is small, the wedge block 311 releases the clamping effect between the inner ring 32 and the outer ring 33, thereby releasing the bearing body 31 from locking and allowing the outer ring 33 to rotate relative to the inner ring 32.

[0062] The bearing body 31 of this embodiment can be locked and unlocked according to the rotation direction of the outer ring 33, thereby enabling the one-way bearing 3 to better transmit the hammering force.

[0063] like Figure 5 As shown, in some embodiments, the bearing body 31 includes a plurality of locking components 313, which are arranged sequentially along the circumferential direction of the one-way bearing 3. Each locking component 313 includes a first locking member 3131, a first elastic member 3132, and a second locking member 3133. Along the radial direction of the inner ring 32, the first locking member 3131 is connected to the inner ring 32. Along the circumferential direction of the one-way bearing 3, one end of the first locking member 3131 forms an inclined end face 313. 4. The first elastic member 3132 abuts against the other end of the first locking member 3131 and the second locking member 3133. The other end of the first locking member 3131 is connected to the second locking member 3133 through the first elastic member 3132. The second locking member 3133 of each locking assembly 313 is movably disposed on the inclined end face 3134 of the first locking member 3131 of the adjacent locking assembly 313 between the locked position and the unlocked position. The second locking member 3133 abuts against the outer ring 33.

[0064] When the outer ring 33 rotates along the first rotation direction a, the second locking member 3133 can move to the locking position along the direction from the bottom end of the inclined end face 3134 to the top end of the inclined end face 3134, and restrict the relative rotation of the inner ring 32 and the outer ring 33. When the outer ring 33 rotates along the second rotation direction b, the second locking member 3133 can move to the unlocking position along the direction from the top end of the inclined end face 3134 to the bottom end of the inclined end face 3134, and allow the outer ring 33 to rotate relative to the inner ring 32. The first elastic member 3132 is in a compressed state, and the second locking member 3133 is in the unlocking position.

[0065] When the outer ring 33 rotates in the first rotation direction a, since the outer ring 33 abuts against the first locking member 3131, under the action of the outer ring 33, the second locking member 3133 can move to the locking position in the direction from the bottom end of the inclined end face 3134 to the top end of the inclined end face 3134. The second locking member 3133 in the locking position makes the outer ring 33 and the inclined end face 3134 lock together, thereby locking the bearing body 31 and restricting the relative rotation of the inner ring 32 and the outer ring 33.

[0066] When the outer ring 33 rotates in the second rotation direction b, since the outer ring 33 abuts against the first locking member 3131, under the action of the outer ring 33, the second locking member 3133 can move to the unlocked position in the direction from the top of the inclined end face 3134 to the bottom of the inclined end face 3134. The second locking member 3133 in the unlocked position releases the clamping action between the outer ring 33 and the inclined end face 3134, thereby releasing the bearing body 31 from locking and allowing the outer ring 33 to rotate relative to the inner ring 32.

[0067] The bearing body 31 of this embodiment can be locked and unlocked according to the rotation direction of the outer ring 33, thereby enabling the one-way bearing 3 to better transmit the hammering force.

[0068] Optionally, the second locking element 3133 is a ball or roller to allow it to roll on the inclined end face 3134.

[0069] Combination Figure 2 , Figure 3 , Figure 6 and Figure 7 As shown, in some embodiments, the hammering assembly 7 includes a hammering block 71 and a second elastic member 72. The hammering block 71 is drive-connected to the drive assembly 5. The hammering block 71 is movably disposed within the housing 1 along a second direction d between a connected position and a separated position. When the hammering block 71 is in the connected position, it is connected to the drive shaft assembly 6 to drive the drive shaft assembly 6 to rotate. When the hammering block 71 is in the separated position, it is separated from the drive shaft assembly 6. The hammering block 71 is configured to move from the connected position to the separated position when the rotation of the drive shaft assembly 6 is obstructed. The second direction d is perpendicular to the first direction c. The second elastic member 72 is located within the housing 1 and connected to the hammering block 71. The second elastic member 72 is configured to drive the hammering block 71 to move from the separated position to the connected position.

[0070] Second direction d as follows Figure 3 As shown at point d, as some examples, the second direction d is the length direction of the shell 1.

[0071] When the output component 4 is obstructed, the rotation of the drive shaft assembly 6 is also obstructed. Under the obstruction of the drive shaft assembly 6, the rotation of the hammer block 71 located at the connection position is also obstructed. The hammer block 71 moves along the second direction d from the connection position to the separation position, and finally reaches the separation position. At the separation position, the hammer block 71 separates from the drive shaft assembly 6 to escape its obstruction. Driven by the drive assembly 5, the hammer block 71 at the separation position rotates. The second elastic element 72 drives the rotating hammer block 71 to move along the second direction d from the separation position to the connection position. When the rotating hammer block 71 reaches the connection position, it hammers the drive shaft assembly 6, thereby increasing the output torque of the output component 4. When the rotation of the output component 4 is not completely obstructed, the hammer block 71 repeats the above movement process to repeatedly hammer the drive shaft assembly 6, ultimately increasing the torque output by the output component 4.

[0072] Combination Figure 2 , Figure 3 , Figure 6 and Figure 7As shown, in some embodiments, the hammering assembly 7 further includes a connector 74, the transmission shaft assembly 6 includes a transmission shaft 61, the drive assembly 5 includes a motor 51 disposed in the housing 1 and a central shaft 52 that is drively connected to the motor 51, the hammering block 71 is sleeved on the outside of the central shaft 52 and can rotate relative to the central shaft 52; the outer peripheral surface of the central shaft 52 is provided with a guide structure 53, the inner peripheral surface of the hammering block 71 is provided with a limiting structure 73, the connector 74 is slidably disposed on the guide structure 53 and connected to the limiting structure 73, the axial direction of the central shaft 52 is parallel to the second direction d, and both the second direction d and the circumferential direction of the central shaft 52 intersect the extension direction of the guide structure 53; when the connection position is blocked and the rotation of the transmission shaft assembly 6 is obstructed, the connector 74 can slide on the guide structure 53 and drive the hammering block 71 to move toward the separation position.

[0073] The connecting member 74 is connected to the limiting structure 73, enabling the hammer block 71 to rotate via the connecting member 74. The connecting member 74 is slidably disposed within the guide structure 53 so that the guide structure 53 can guide the movement of the hammer block 71. When the rotation of the drive shaft assembly 6 is obstructed, the hammer block 71 moves along the guide structure 53 toward the separation position, thereby realizing the movement from the connected position to the separation position when the rotation of the drive shaft assembly 6 is obstructed. Under the action of the second elastic member 72, the hammer block 71 moves along the guide structure 53 toward the connected position, so that the movement of the hammer block 71 is more precise.

[0074] Combination Figure 2 , Figure 3 , Figure 6 and Figure 7 As shown, in some embodiments, the guide structure 53 includes a first groove 531, and the limiting structure 73 includes a second groove 731. The second direction d and the circumferential direction of the central axis 52 both intersect the extending direction of the first groove 531, and the second direction d and the circumferential direction of the central axis 52 both intersect the extending direction of the second groove 731. That is, the second direction d and the circumferential direction of the central axis 52 both form an angle with the extending direction of the second groove 731, and neither the second direction d nor the circumferential direction of the central axis 52 is parallel to the extending direction of the second groove 731, and neither the second direction d nor the circumferential direction of the central axis 52 is perpendicular to the extending direction of the second groove 731. The connector 74 is configured as a rolling ball rotatably disposed within the first groove 531 and the second groove 731. Making the connector 74 a rolling ball facilitates sliding within the first groove 531 and also facilitates sliding within the second groove 731.

[0075] In the connected position, the rolling ball is located at one end of the first slide 531 near the drive shaft assembly 6 and at one end of the second slide 731 away from the drive shaft assembly 6; in the disconnected position, the rolling ball is located at one end of the first slide 531 away from the drive shaft assembly 6 and at one end of the second slide 731 near the drive shaft assembly 6.

[0076] The guide structure 53 also includes a first slot 532 and a third slide groove 533. The first slot 532 is located radially between the first slide groove 531 and the third slide groove 533 along the central axis 52 and is connected to the first slide groove 531 and the third slide groove 533 respectively. The first slide groove 531 and the third slide groove 533 are symmetrically arranged with the central axis of the first slot 532 as the axis of symmetry.

[0077] The limiting structure 73 also includes a second slot 732 and a fourth slide groove 733. The second slot 732 is located radially between the second slide groove 731 and the fourth slide groove 733 along the central axis 52 and is connected to the second slide groove 731 and the fourth slide groove 733 respectively. The second slide groove 731 and the fourth slide groove 733 are symmetrically arranged with the central axis of the second slot 732 as the axis of symmetry.

[0078] Combination Figure 7 and Figure 8 As shown, when the rolling ball moves from the connected position to the separated position, the rolling ball moves from the end of the first slide groove 531 near the drive shaft assembly 6 to the end of the first slide groove 531 away from the drive shaft assembly 6. Meanwhile, the second slide groove 731 moves relative to the rolling ball, so that the end of the second slide groove 731 away from the drive shaft assembly 6 moves away from the rolling ball, and the end of the second slide groove 731 near the drive shaft assembly 6 moves closer to the rolling ball.

[0079] When the hammer block 71 moves from the connected position to the separated position, the rolling ball moves and generates displacement in both the first and second slide grooves 731. Since the second direction d and the circumferential direction of the central axis 52 intersect the extending direction of the first slide groove 531, and the rolling ball moves from the end of the first slide groove 531 near the drive shaft assembly 6 to the end of the first slide groove 531 away from the drive shaft assembly 6, the rolling ball generates a displacement away from the drive shaft assembly 6 within the first slide groove 531 along the second direction d, thereby causing the hammer block 71 to generate a displacement away from the drive shaft assembly 6. Since the second direction d and the circumferential direction of the central axis 52 intersect the extending direction of the second slide groove 731, and the end of the second slide groove 731 away from the drive shaft assembly 6 is away from the rolling ball, while the end of the second slide groove 731 near the drive shaft assembly 6 is close to the rolling ball, the hammer block 71 further generates a displacement away from the drive shaft assembly 6 along the second direction d.

[0080] The hammer block 71 can generate a displacement away from the drive shaft assembly 6 through the first slide groove 531 and the second slide groove 731, thereby avoiding the first slide groove 531 and the second slide groove 731 from being too large. This also avoids the central shaft 52 with the first slide groove 531 from being too large, and the hammer block 71 with the second slide groove 731 from being too large. This reasonably reduces the size of the central shaft 52 and the hammer block 71, thereby reducing the size of the housing 1.

[0081] When the hammer block 71 moves from the separated position to the connected position, the rolling ball moves from the end of the first groove 531 away from the drive shaft assembly 6 to the end of the first groove 531 closer to the drive shaft assembly 6. Since the second direction d and the circumferential direction of the central axis 52 both intersect the extension direction of the first groove 531, and the rolling ball moves from the end of the first groove 531 away from the drive shaft assembly 6 to the end of the first groove 531 closer to the drive shaft assembly 6, the hammer block 71 generates a displacement along the circumferential direction of the central axis 52 in the same direction as the rotation of the central axis 52. By making the displacement between the hammer block 71 and the central axis 52, the hammer block 71 can be further accelerated, thereby increasing the striking effect of the hammer block 71 on the drive shaft assembly 6. The second groove 731 moves relative to the rolling ball, so that the end of the second groove 731 closer to the drive shaft assembly 6 moves away from the rolling ball, and the end of the second groove 731 away from the drive shaft assembly 6 moves closer to the rolling ball. Since the second direction d and the circumferential direction of the central shaft 52 both intersect the extension direction of the second groove 731, and the end of the second groove 731 near the drive shaft assembly 6 is far from the rolling ball, while the end of the second groove 731 far from the drive shaft assembly 6 is close to the rolling ball, the hammer block 71 generates a displacement in the same direction as the rotation of the central shaft 52 along the circumferential direction of the central shaft 52. By making the displacement between the hammer block 71 and the central shaft 52, the hammer block 71 can be further accelerated, thereby increasing the impact effect of the hammer block 71 on the drive shaft assembly 6.

[0082] The hammer block 71, through both the first and second sliding grooves 531, can generate a displacement relative to the central shaft 52 along the circumferential direction of the central shaft 52, in the same direction as the rotation of the central shaft 52. This displacement allows the hammer block 71 to be further accelerated, thereby increasing the impact effect of the hammer block 71 on the transmission shaft assembly 6, and thus increasing the torque output of the transmission shaft assembly 6. Furthermore, the fact that the hammer block 71 can generate a displacement relative to the central shaft 52 along the circumferential direction of the central shaft 52, in the same direction as the rotation of the central shaft 52, through both the first and second sliding grooves 531, can prevent the dimensions of the first and second sliding grooves 531 from becoming too large. This prevents the central shaft 52 with the first sliding groove 531 from becoming too large, and also prevents the hammer block 71 with the second sliding groove 731 from becoming too large, thus reasonably reducing the dimensions of the central shaft 52 and the hammer block 71 to accommodate the dimensions of the housing 1.

[0083] The first card slot 532 is an axisymmetric figure, and the central axis of the first card slot 532 is the axis of symmetry of the first card slot 532.

[0084] When the hammer block 71 is in the connected position, the rolling ball is located in the first slot 532. When the hammer block 71 is in the separated position and rotates in the third rotation direction, the rolling ball is located in the first slide groove 531. When the hammer block 71 is in the connected position and rotates in the fourth rotation direction, the rolling ball is located in the third slide groove 533. The third and fourth rotation directions are opposite. By setting the first slide groove 531 and the third slide groove 533, the rolling ball can enter the first slide groove 531 or the third slide groove 533 according to the rotation direction of the hammer block 71, thereby being able to be in the connected position according to the rotation direction of the hammer block 71.

[0085] The second slot 732 is an axisymmetric figure, and the central axis of the second slot 732 is the axis of symmetry of the second slot 732.

[0086] When the hammer block 71 is in the connected position, the rolling ball is located in the second slot 732. When the hammer block 71 is in the separated position and rotates in the third rotation direction, the rolling ball is located in the second slide groove 731. When the hammer block 71 is in the connected position and rotates in the fourth rotation direction, the rolling ball is located in the fourth slide groove 733. The third and fourth rotation directions are opposite. By setting the second slide groove 731 and the fourth slide groove 733, the rolling ball can enter the second slide groove 731 or the fourth slide groove 733 according to the rotation direction of the hammer block 71, thereby being able to be in the connected position according to the rotation direction of the hammer block 71.

[0087] Combination Figure 2 , Figure 3 and Figure 9 As shown, in some embodiments, the swing member 2 is provided with a first swing portion 21 and a second swing portion 22, which are spaced apart along the circumference of the swing member 2. The transmission shaft assembly 6 also includes an eccentric shaft 62, which is located at one end of the transmission shaft 61 away from the central shaft 52. The eccentric shaft 62 is located between the first swing portion 21 and the second swing portion 22. The eccentric shaft 62 has a first abutting position and a second abutting position. The central shaft 52 located at the first abutting position abuts against the first swing portion 21 to drive the first swing portion 21 to rotate in a first rotation direction a. The central shaft 52 located at the second abutting position abuts against the second swing portion 22 to drive the second swing portion 22 to rotate in a second rotation direction b.

[0088] The first and second contact positions are both a series of positions.

[0089] When the eccentric shaft 62 is in the first abutting position, it abuts against the first swing part 21 so as to drive the first swing part 21 to rotate in the first rotation direction a, thereby driving the swing member 2 to rotate in the first rotation direction a. When the eccentric shaft 62 is in the second abutting position, it abuts against the second swing part 22 so as to drive the second swing part 22 to rotate in the second rotation direction b, thereby driving the swing member 2 to rotate in the second rotation direction b.

[0090] Combination Figure 9 and Figure 10 As shown, in some embodiments, the output member 4 has a first end 43 and a second end 44 that are arranged oppositely along the first direction c. The first end 43 and the second end 44 are located on both sides of the swing member 2 along the first direction c. A first screwing part 41 is provided at the first end 43, and a second screwing part 42 is provided at the second end 44. The first screwing part 41 and the second screwing part 42 are adapted to be embedded in the external member.

[0091] By positioning the first screwing part 41 at the first end 43 and the second screwing part 42 at the second end 44, the positions of the first screwing part 41 and the second screwing part 42 are convenient for connection with external components, thereby reducing the difficulty of operation for the user.

[0092] like Figure 10 As shown, in some embodiments, both the first screwing part 41 and the second screwing part 42 are provided with a stop hole 45, a third elastic member 46 and a stop ball 47. A part of the stop ball 47 is located inside the stop hole 45, and another part of the stop ball 47 is located outside the stop hole 45. The third elastic member 46 is disposed inside the stop hole 45 and abuts against the stop ball 47. The third elastic member 46 is in a compressed state so that the stop ball 47 abuts against the inner wall surface of the stop hole 45.

[0093] When the first screwing part 41 is embedded in the external part, under the action of the third elastic member 46, another part of the first stop ball 47 is located outside the stop hole 45 and abuts against the external part, so as to realize the installation between the first screwing part 41 and the external part.

[0094] When the second screwing part 42 is embedded in the external part, under the action of the third elastic member 46, another part of the stop ball 47 is located outside the stop hole 45 and abuts against the external part, so as to realize the installation between the second screwing part 42 and the external part.

[0095] The third elastic element 46 and the first stop ball 47 enable the external component to be more securely installed on the first screwing part 41, reducing the risk of the first screwing part 41 and the external component falling off. Furthermore, the external component can also be more securely installed on the second screwing part 42, reducing the risk of the second screwing part 42 and the external component falling off.

[0096] like Figure 8As shown, in some embodiments, the first screwing part 41 is a first mounting groove 48, the second screwing part 42 is a second mounting groove 49, and the output member 4 has a first end 43 and a second end 44 arranged opposite to each other along the first direction c. The first mounting groove 48 is disposed at the first end 43, and the second mounting groove 49 is disposed at the second end 44. Both the first mounting groove 48 and the second mounting groove 49 extend along the first direction c. The first mounting groove 48 and the second mounting groove 49 are respectively adapted to be sleeved on the external member.

[0097] By positioning the first mounting slot 48 at the first end 43 and the second mounting slot 49 at the second end 44, the first screwing part 41 and the second screwing part 42 are made easier to connect with external components, thereby reducing the difficulty of operation for the user.

[0098] Furthermore, both the first mounting groove 48 and the second mounting groove 49 are provided with a plurality of protrusions suitable for contacting external components, so that the external components can be fixed by means of the protrusions.

[0099] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0100] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0101] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "over," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure rotates, then an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0102] In the description of the application, the technical terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "circumferential", "height direction", "first direction", "second direction", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed, operated or used in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0103] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0104] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An electric impact ratchet wrench, characterized in that, include: case; A swing member, which is rotatably disposed in the housing along a first rotation direction and a second rotation direction, wherein the first rotation direction and the second rotation direction are opposite; A one-way bearing includes a bearing body, an inner ring, and an outer ring. The bearing body is located between and connected to the inner ring and the outer ring. The outer ring is embedded in and connected to the swing member. When the outer ring rotates in a first rotation direction, the bearing body locks and restricts the relative rotation of the inner ring and the outer ring. When the outer ring rotates in a second rotation direction, the bearing body is unlocked and the outer ring can rotate relative to the inner ring. An output component is embedded in the inner ring. The output component is provided with a first screwing part and a second screwing part arranged in opposite directions in a first direction. The first screwing part and the second screwing part are respectively adapted to be connected to an external component. Driver components; A drive shaft assembly is connected to the swing member and is capable of driving the swing member to swing along the first rotation direction and the second rotation direction; A hammering assembly is driven to the drive assembly and is also driven to the drive shaft assembly, and is configured to hammer the drive shaft assembly.

2. The electric impact ratchet wrench according to claim 1, characterized in that, The bearing body includes multiple wedges and a connecting ring. The multiple wedges are rotatably spaced along the circumferential direction of the one-way bearing. Each wedge includes a first abutting portion, a second abutting portion, and a third abutting portion that are interconnected. The first abutting portion abuts against the outer ring. The distance between the first abutting portion and the second abutting portion is less than the distance between the first abutting portion and the third abutting portion. When the outer ring rotates along the first rotation direction, the third abutting part abuts against the inner ring and restricts the relative rotation of the inner ring and the outer ring. When the outer ring rotates along the second rotation direction, the second abutting part abuts against the inner ring and allows the outer ring to rotate relative to the inner ring. The connecting ring passes through each of the wedges and is connected to each of the wedges.

3. The electric impact ratchet wrench according to claim 1, characterized in that, The bearing body includes multiple locking components, which are arranged sequentially along the circumferential direction of the one-way bearing. Each locking component includes a first locking element, a first elastic element, and a second locking element. Along the radial direction of the inner ring, the first locking member is connected to the inner ring. Along the circumferential direction of the one-way bearing, one end of the first locking member forms an inclined end face. The first elastic member abuts against the other end of the first locking member and the second locking member. The second locking member of each locking assembly is movably disposed on the inclined end face of the first locking member of the adjacent locking assembly between the locked position and the unlocked position. The second locking member abuts against the outer ring. When the outer ring rotates along the first rotation direction, the second locking member can move to the locking position along the direction from the bottom end of the inclined end face to the top end of the inclined end face, and restrict the relative rotation of the inner ring and the outer ring. When the outer ring rotates along the second rotation direction, the second locking member can move to the unlocking position along the direction from the top end of the inclined end face to the bottom end of the inclined end face, and allow the outer ring to rotate relative to the inner ring. The first elastic member is in a compressed state, and the second locking member is in the unlocking position.

4. The electric impact ratchet wrench according to any one of claims 1 to 3, characterized in that, The hammering assembly includes: A hammer block is connected to the drive assembly. The hammer block is movably disposed within the housing along a second direction between a connected position and a separated position. The hammer block in the connected position is connected to the drive shaft assembly to drive the drive shaft assembly to rotate. The hammer block in the separated position is separated from the drive shaft assembly. The hammer block is configured to move from the connected position to the separated position when the rotation of the drive shaft assembly is obstructed. The second direction is perpendicular to the first direction. A second elastic element is located within the housing and connected to the hammer block, the second elastic element being configured to drive the hammer block to move from the separated position to the connected position.

5. The electric impact ratchet wrench according to claim 4, characterized in that, The hammering assembly also includes a connector, the transmission shaft assembly includes a transmission shaft, the drive assembly includes a motor disposed in the housing and a central shaft that is connected to the motor for transmission, and the hammering block is sleeved outside the central shaft and can rotate relative to the central shaft; The outer circumferential surface of the central shaft is provided with a guide structure, and the inner circumferential surface of the hammer block is provided with a limiting structure. The connecting piece is slidably disposed on the guide structure and connected to the limiting structure. The axial direction of the central shaft is parallel to the second direction, and both the second direction and the circumferential direction of the central shaft intersect the extension direction of the guide structure. When the drive shaft assembly is in the connected position and its rotation is obstructed, the connector is able to slide on the guide structure and drive the hammer block to move toward the separated position.

6. The electric impact ratchet wrench according to claim 5, characterized in that, The guide structure includes a first slide groove, the limiting structure includes a second slide groove, the second direction and the circumferential direction of the central axis both intersect the extension direction of the first slide groove, the second direction and the circumferential direction of the central axis both intersect the extension direction of the second slide groove, and the connector is configured as a rolling ball rotatably disposed in the first slide groove and the second slide groove; In the connected position, the rolling ball is located at one end of the first groove near the drive shaft assembly and at one end of the second groove away from the drive shaft assembly; in the separated position, the rolling ball is located at one end of the first groove away from the drive shaft assembly and at one end of the second groove near the drive shaft assembly. The guide structure further includes a first slot and a third slide groove. The first slot is located radially between the first slide groove and the third slide groove along the central axis and is connected to the first slide groove and the third slide groove respectively. The first slide groove and the third slide groove are symmetrically arranged about the central axis of the first slot as the axis of symmetry. The limiting structure further includes a second slot and a fourth slide groove. The second slot is located radially between the second slide groove and the fourth slide groove along the central axis and is connected to the second slide groove and the fourth slide groove respectively. The second slide groove and the fourth slide groove are symmetrically arranged with the central axis of the second slot as the axis of symmetry.

7. The electric impact ratchet wrench according to claim 5, characterized in that, The swing member is provided with a first swing portion and a second swing portion, which are spaced apart circumferentially along the swing member. The transmission shaft assembly further includes an eccentric shaft, which is located at one end of the transmission shaft away from the central shaft. The eccentric shaft is located between the first swing portion and the second swing portion, and has a first abutment position and a second abutment position. The central shaft located at the first abutment position abuts against the first swing portion to drive the first swing portion to rotate in the first rotation direction, and the central shaft located at the second abutment position abuts against the second swing portion to drive the second swing portion to rotate in the second rotation direction.

8. The electric impact ratchet wrench according to claim 1, characterized in that, The output component has a first end and a second end that are arranged in opposite directions along the first direction. The first end and the second end are located on both sides of the swing component along the first direction. The first screwing part is provided at the first end, and the second screwing part is provided at the second end. The first screwing part and the second screwing part are adapted to be embedded in the external component.

9. The electric impact ratchet wrench according to claim 8, characterized in that, Both the first and second screwing parts are provided with a stop hole, a third elastic element and a stop ball. A part of the stop ball is located inside the stop hole, and another part of the stop ball is located outside the stop hole. The third elastic element is disposed inside the stop hole and abuts against the stop ball. The third elastic element is in a compressed state so that the stop ball abuts against the inner wall surface of the stop hole.

10. The electric impact ratchet wrench according to claim 1, characterized in that, The first screwing part is a first mounting groove, the second screwing part is a second mounting groove, the output member has a first end and a second end arranged opposite to each other along the first direction, the first mounting groove is disposed at the first end, the second mounting groove is disposed at the second end, the first mounting groove and the second mounting groove both extend along the first direction, and the first mounting groove and the second mounting groove are respectively adapted to be sleeved on the external member.

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