Novel electric ratchet wrench

Abstract

The utility model discloses a novel electric ratchet wrench which comprises a ratchet head assembly, a motor and a machine shell, the ratchet head assembly is connected with the top of the machine shell, the motor is arranged in the machine shell, a motor transmission shaft is connected with a motor gear, the motor gear is arranged on a motor fluted disc, and the motor fluted disc is connected with an inner gear ring through a first cross countersunk head screw. The ratchet wheel head assembly is connected with one end of a connecting shaft, the other end of the connecting shaft sequentially penetrates through the fluted disc, the inner gear ring and the motor fluted disc and is connected with a motor transmission shaft through a coupler, a switch assembly is arranged in the machine shell, and the switch assembly comprises a switch, a lamp panel and a lighting lamp post. The switch is connected with one end of the switch trigger reset spring, the other end of the switch trigger reset spring penetrates out of the machine shell to be connected with the switch trigger, the bottom of the machine shell is connected with the pin plate through the cross pan head screw, and the electric ratchet wrench is simple in structure, convenient to assemble and high in cost.

Description

Technical Field

[0001] The utility model relates to the technical field of ratchet wrenches, in particular to a novel electric ratchet wrench. Background Art

[0002] An electric ratchet wrench is a wrench with a ratchet mechanism that uses an electric motor as a driving force. Its main structural components include an electric motor, a ratchet mechanism, a gear set, a transmission shaft, and a housing. The working principle of an electric ratchet wrench is: when the motor drives the transmission shaft to rotate, the transmission shaft drives the gear set, the ratchet mechanism, and the output shaft to rotate. Through the speed ratio change of the gear set, the output shaft generates a specified torque output, thereby achieving the function of loosening and tightening the bolt. The existing electric ratchet wrench has a complex structure, high cost, and a cumbersome assembly process, and there is still room for simplification. Utility Model Content

[0003] In order to solve the above problems, the utility model provides a novel electric ratchet wrench.

[0004] The utility model adopts the following technical solutions:

[0005] A novel electric ratchet wrench comprises a ratchet head assembly, a motor, and a casing, wherein the ratchet head assembly is connected to the top of the casing, the motor is arranged inside the casing, the motor transmission shaft is connected to the motor gear, the motor gear is arranged on the motor toothed disc, the motor toothed disc is connected to the inner gear ring through a cross countersunk screw, a toothed disc is arranged inside the inner gear ring, a planetary gear is arranged on the toothed disc, the ratchet head assembly is connected to one end of the connecting shaft, the other end of the connecting shaft passes through the toothed disc, the inner gear ring, and the motor toothed disc in sequence and is connected to the motor transmission shaft through a coupling, a switch assembly is arranged inside the casing, the switch assembly comprises a switch, a lamp board, and a lighting lamp post, the switch is connected to one end of a switch trigger reset spring, the other end of the switch trigger reset spring passes through the casing and is connected to the switch trigger, and the bottom of the casing is connected to a pin plate through a cross pan head screw.

[0006] As a preferred technical solution of the utility model, an inductor is arranged inside the housing, and the inductor is electrically connected to the motor.

[0007] As a preferred technical solution of the present invention, the switch is electrically connected to the light panel and the lighting pole.

[0008] As a preferred technical solution of the utility model, the switch assembly is fixed to the inner wall of the casing by bolts.

[0009] As a preferred technical solution of the utility model, the switch assembly is connected to the self-locking button through a self-locking button spring.

[0010] As a preferred technical solution of the utility model, the lighting lamp post passes through the outer wall of the casing and is connected to the casing.

[0011] As a preferred technical solution of the utility model, the motor is electrically connected to the switch assembly, the self-locking button, the inductor, and the pin board.

[0012] As a preferred technical solution of the utility model, the ratchet head assembly is provided with a plurality of pin holes along the circumferential direction, and steel pins are inserted into the pin holes.

[0013] As a preferred technical solution of the utility model, the motor gear is meshedly connected with the planetary gears, the number of the planetary gears is three, and the side of the planetary gear away from the motor gear is meshedly connected with the inner gear ring.

[0014] As a preferred technical solution of the utility model, the casing is divided into two parts, the left and right parts of the casing, and the left and right parts of the casing are connected by two cross countersunk screws.

[0015] The beneficial effects of the utility model are:

[0016] The electric ratchet wrench of the utility model has a simple structure, a convenient assembly process, a relatively low cost, and is convenient for practical promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is an exploded view of the electric ratchet wrench of the utility model;

[0018] Figure 2 It is an enlarged view of the ratchet head assembly of the utility model;

[0019] Figure 3 This is a diagram showing the left and right parts of the casing of the utility model;

[0020] Figure 4 This is a top view of the toothed disc of the utility model;

[0021] Figure 5 This is a top view of the motor gear disc of the utility model.

[0022] Explanation of symbols in the figure:

[0023] 1: ratchet head assembly, 2: steel pin, 3: connecting shaft, 4: toothed disc, 5: planetary gear, 6: inner ring gear, 7: cross countersunk screw one, 8: motor toothed disc, 9: motor gear, 10: motor, 11: inductor, 12: self-locking button, 13: self-locking button spring, 14: switch assembly, 1401: switch, 1402: light board, 1403: lighting column, 15: pin board, 16: switch trigger, 17: switch trigger reset spring, 18: cross countersunk screw two, 19: housing, 20: cross pan head screw. DETAILED DESCRIPTION

[0024] The utility model is now described in further detail with reference to the accompanying drawings.

[0025] In the embodiments, it should be understood that the terms "middle", "upper", "lower", "top", "bottom", "right", "left", "above", "below", "back", "front", "middle", "outside", "inside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments, and do not indicate or imply 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 a limitation on the embodiments.

[0026] like Figures 1 to 5 As shown, a novel electric ratchet wrench includes a ratchet head assembly 1, a motor 10, and a casing 19, wherein the ratchet head assembly 1 is connected to the top of the casing 19, the motor 10 is arranged inside the casing 19, the transmission shaft of the motor 10 is connected to the motor gear 9, the motor gear 9 is arranged on the motor toothed disc 8, the motor toothed disc 8 is connected to the inner gear ring 6 through a cross countersunk screw 7, a toothed disc 4 is arranged inside the inner gear ring 6, and a planetary gear 5 is arranged on the toothed disc 4, the ratchet head assembly 1 is connected to one end of the connecting shaft 3, The other end of the connecting shaft 3 passes through the gear plate 4, the inner gear ring 6, and the motor gear plate 8 in sequence and is connected to the transmission shaft of the motor 10 through a coupling. A switch assembly 14 is arranged inside the housing 19, and the switch assembly 14 includes a switch 1401, a lamp board 1402, and a lighting lamp column 1403. The switch 1401 is connected to one end of a switch trigger reset spring 17, and the other end of the switch trigger reset spring 17 passes through the housing 19 and is connected to the switch trigger 16. The bottom of the housing 19 is connected to the pin plate 15 through a cross pan head screw 20.

[0027] Furthermore, an inductor 11 is disposed inside the housing 19, and the inductor 11 is electrically connected to the motor 10, and the motor 10 is a 12-volt motor.

[0028] Furthermore, the switch 1401 is electrically connected to the light board 1402 and the lighting pole 1403 .

[0029] Furthermore, the switch assembly 14 is fixed to the inner wall of the casing 19 by bolts.

[0030] Furthermore, the switch assembly 14 is connected to the self-locking button 12 via a self-locking button spring 13 .

[0031] Furthermore, the lighting pole 1403 passes through the outer wall of the casing 19 and is connected to the casing 19 .

[0032] Furthermore, the motor 10 is electrically connected to the switch assembly 14 , the self-locking button 12 , the inductor 11 , and the pin board 15 .

[0033] Furthermore, the ratchet head assembly 1 is provided with a plurality of pin holes along the circumferential direction, and steel pins 2 are inserted into the pin holes.

[0034] Furthermore, the motor gear 9 is meshedly connected with the planetary gears 5 . The number of the planetary gears 5 is three, and the side of the planetary gear 5 away from the motor gear 9 is meshedly connected with the inner gear ring 6 .

[0035] Furthermore, the housing 19 is divided into two parts, the left and right parts, and the left and right parts of the housing are connected by a cross countersunk screw 18.

[0036] Finally, it should be noted that these embodiments are only used to illustrate the present invention and do not limit the scope of the present invention. In addition, for those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. The obvious changes or modifications derived from them are still within the scope of protection of the present invention.

Claims

1. A new type of electric ratchet wrench, characterized by: The invention comprises a ratchet head assembly (1), a motor (10), and a housing (19), wherein the ratchet head assembly (1) is connected to the top of the housing (19), the motor (10) is arranged inside the housing (19), the transmission shaft of the motor (10) is connected to the motor gear (9), the motor gear (9) is arranged on a motor toothed disc (8), the motor toothed disc (8) is connected to an inner gear ring (6) through a cross countersunk screw (7), a toothed disc (4) is arranged inside the inner gear ring (6), a planetary gear (5) is arranged on the toothed disc (4), the ratchet head assembly (1) is connected to one end of a connecting shaft (3), and the connecting shaft ( 3) the other end passes through the gear disc (4), the inner gear ring (6), and the motor gear disc (8) in sequence and is connected to the transmission shaft of the motor (10) through a coupling. A switch assembly (14) is arranged inside the housing (19). The switch assembly (14) includes a switch (1401), a lamp board (1402), and a lighting lamp post (1403). The switch (1401) is connected to one end of a switch trigger reset spring (17). The other end of the switch trigger reset spring (17) passes through the housing (19) and is connected to the switch trigger (16). The bottom of the housing (19) is connected to the pin plate (15) through a cross pan head screw (20).

2. A new type of electric ratchet wrench according to claim 1, characterized in that: An inductor (11) is arranged inside the housing (19), and the inductor (11) is electrically connected to the motor (10), and the motor (10) is a 12-volt motor.

3. A new type of electric ratchet wrench according to claim 1, characterized in that: The switch (1401) is electrically connected to the light panel (1402) and the lighting pole (1403).

4. A new type of electric ratchet wrench according to claim 1, characterized in that: The switch assembly (14) is fixed to the inner wall of the casing (19) by means of bolts.

5. A new type of electric ratchet wrench according to claim 4, characterized in that: The switch assembly (14) is connected to the self-locking button (12) via a self-locking button spring (13).

6. A novel electric ratchet wrench according to claim 1, characterized in that: The lighting lamp post (1403) passes through the outer wall of the casing (19) and is connected to the casing (19).

7. A new type of electric ratchet wrench according to claim 2, characterized in that: The motor (10) is electrically connected to the switch assembly (14), the self-locking button (12), the inductor (11), and the pin board (15).

8. The new electric ratchet wrench according to claim 1 is characterized in that: The ratchet head assembly (1) is provided with a plurality of pin holes along the circumferential direction, and steel pins (2) are inserted into the pin holes.

9. The new electric ratchet wrench according to claim 1 is characterized in that: The motor gear (9) is meshedly connected with the planetary gear (5), the number of the planetary gears (5) is three, and the side of the planetary gear (5) away from the motor gear (9) is meshedly connected with the inner gear ring (6).

10. The novel electric ratchet wrench according to claim 1 is characterized in that: The housing (19) is divided into two parts, the left and right parts, which are connected by two cross countersunk screws (18).

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