CN220051621U - Ratchet wrench - Google Patents

Abstract

The utility model relates to a ratchet wrench, which is provided with a battery pack, and comprises a shell, a motor component and a switch component which are arranged in the shell, an output component connected with the motor component and a control board for controlling the motor component, wherein the switch component is electrically connected with the control board. The shell is provided with a motor part for accommodating the motor component, a connecting part for installing the battery pack and a holding part positioned between the motor part and the connecting part, and the switch component is arranged on the holding part. In the axis direction of the motor assembly, the control panel is positioned in front of or behind the switch assembly, the holding part is provided with an arc-shaped part connected between the motor part and the connecting part and a characteristic part recessed inwards from the arc-shaped part, a plane formed by intersecting the axis of the motor assembly and the axis of the output assembly is a first plane, and the characteristic parts are distributed on two sides of the first plane. According to the utility model, the characteristic part is designed on the holding part, so that the ratchet wrench is integrally designed to be waisted, and the operation comfort is improved.

Description

Ratchet wrench

[ field of technology ]

The utility model relates to a ratchet wrench, in particular to a ratchet wrench used in occasions such as decoration, construction and the like.

[ background Art ]

Ratchet wrenches are tools that operate by a motor to automatically tighten and loosen bolts, and are commonly used to tighten and loosen high strength bolts. Existing ratchet wrenches typically include a housing for housing a motor, with a front end of the housing extending beyond a ratchet member and a rear end housing a battery pack, which is generally elongate. In actual use, an operator manipulates the motor-driven ratchet member by means of an operating element mounted on the housing to perform a machining operation.

For the above structure, refer to chinese patent No. 208409720U published in 2019, 01 and 22, which discloses an electric ratchet wrench, which comprises an aluminum motor housing, a motor disposed in the motor housing, and a battery pack disposed on a cylindrical casing formed by left and right opposite directions, wherein a control trigger is hinged at the rear end of the casing, and a control circuit board is embedded at one side facing away from the control trigger, such arrangement design can enlarge the radial dimension of the grip portion, which is inconvenient for holding operation and has poor operation comfort.

In view of the foregoing, it is desirable to provide an improved ratchet wrench that overcomes the shortcomings of the prior art.

[ utility model ]

Aiming at the defects of the prior art, the utility model aims to provide a ratchet wrench with high holding comfort.

The utility model solves the problems in the prior art by adopting the following technical scheme: the ratchet wrench is provided with a battery pack and comprises a shell, a motor component, a switch component, an output component and a control board, wherein the motor component and the switch component are arranged in the shell, the output component is connected with the motor component, the control board is used for controlling the motor component, and the switch component is electrically connected with the control board; the shell is provided with a motor part for accommodating the motor component, a connecting part for installing the battery pack and a holding part arranged between the motor part and the connecting part, the switch component is arranged on the holding part, the control board is arranged in front of or behind the switch component in the axial direction of the motor component, the holding part is provided with an arc-shaped part connected between the motor part and the connecting part and a characteristic part recessed inwards from the arc-shaped part, the plane formed by intersecting the axis of the motor component and the axis of the output component is a first plane, and the characteristic parts are distributed on two sides of the first plane.

The further improvement scheme is as follows: in a second plane perpendicular to the first plane, a ratio of a lateral length of the feature to a lateral length of the connection is less than 0.85.

The further improvement scheme is as follows: the feature has a lateral length of 20-48mm.

The further improvement scheme is as follows: the feature has a lateral length of 36-40mm.

The further improvement scheme is as follows: the battery pack is at least partially accommodated in the connecting part, and the inserting and pulling axis of the battery pack is parallel to or coincides with the axis of the motor assembly.

The further improvement scheme is as follows: the control board is positioned in front of the switch assembly and is accommodated in the motor part.

The further improvement scheme is as follows: the lateral length of the feature is less than the lateral length of the motor portion.

The further improvement scheme is as follows: the switch component is a signal switch.

Compared with the prior art, the utility model has the following beneficial effects: through arranging motor element, control panel, switch module and battery package in proper order in the axial, motor element and control panel settle in motor portion, switch module arranges in the portion of gripping, and the battery package is pegged graft in connecting portion, and the portion of gripping sets up the characteristic portion of inwards sunken for ratchet spanner is whole to be the design of receiving the waist, promotes the travelling comfort of operation.

[ description of the drawings ]

The following describes the embodiments of the present utility model in further detail with reference to the accompanying drawings:

FIG. 1 is a schematic view of the overall structure of a ratchet wrench of the present utility model;

FIG. 2 is a schematic view of the ratchet wrench of FIG. 1 with a portion of the main housing removed;

FIG. 3 is a schematic view of the internal structure of the ratchet wrench of FIG. 1 at an alternative angle.

[ detailed description ] of the utility model

The utility model will be described in further detail with reference to the drawings and embodiments.

The terminology used in the present utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The words such as "upper", "lower", "front", "rear", "left", "right", etc., indicating an azimuth or a positional relationship are merely based on the azimuth or the positional relationship shown in the drawings, and are merely for convenience of description and to simplify the description, and do not indicate or imply that the devices/elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

Referring to fig. 1-3, embodiments of the present utility model relate to a ratchet wrench 100 that is commonly used for automatic tightening of bolts. The ratchet wrench 100 includes a housing 1 extending along an axial direction, a motor assembly 2 installed in the housing 1, a transmission assembly, a driving assembly and an output assembly 5, wherein the transmission assembly is connected to an axial front end of the motor assembly and is driven by the motor assembly 2, the driving assembly is connected between the transmission assembly and the output assembly, and the motor assembly 2 drives the output assembly 5 to operate through the transmission assembly and the driving assembly so as to perform processing operation.

In the present embodiment, the ratchet wrench 100 is further provided with a switch assembly 6 mounted in the housing 1, an operating member 7 connected to the switch assembly 6, a control board 8 for controlling the motor assembly 2, and a battery pack 101 detachably mounted on the housing 1, and the motor assembly 2, the switch assembly 6, the control board 8, and the battery pack 101 are electrically connected. Specifically, a battery pack 101 is inserted from the axial rear end of the housing 1 for supplying power to the ratchet wrench 100. When the operator touches the operation member 7, the switch assembly 6 is activated so that the battery pack 101 supplies power to the motor assembly 2 and the control board 8, and the control board 8 controls the operation of the motor assembly 2.

Preferably, the switch assembly 6 is a signal switch, which is small in size and convenient to arrange.

As shown in fig. 1 and 3, the casing 1 includes a base 12 for housing the motor unit 2, a head case 13 connected to an axial front end of the base 12, and a main casing 11 covering an outer periphery of the base 12, the main casing 11 includes a motor portion 111 for housing the motor unit 2, a connection portion 113 for mounting the battery pack 101, and a holding portion 112 located between the motor portion 111 and the connection portion 113, and the switch unit 6 is housed in the holding portion 112. In the axial direction of the motor assembly 2, the control board 8 is located in front of or behind the switch assembly 6, and the holding part 112 does not need to accommodate the control board 8, so that the radial dimension of the holding part 112 can be shortened, the holding operation of an operator is facilitated, and the comfort of the operation is improved.

Specifically, the motor assembly 2 and the control board 8 are located in the motor portion 111, and the battery pack 101 is at least partially housed in the connecting portion 113, and the motor assembly 2, the control board 8, the switch assembly 6, and the battery pack 101 are sequentially arranged in the axial direction. The control board 8 is located in front of the switch assembly 6 to facilitate the routing of the wires. Preferably, the axis of insertion and extraction of the battery pack 101 is parallel or coincident with the axis of the motor assembly 2.

In the present embodiment, the grip 112 has an arc portion 112a connected between the motor portion 111 and the connecting portion 113, and a feature portion 112b recessed inward from the arc portion 112 a. Specifically, a plane in which the axis of the motor assembly 2 intersects with the axis of the output assembly 5 is set as a first plane M, a plane perpendicular to the first plane M is set as a second plane N, and the characteristic portions 112b are distributed on both sides of the first plane M. When the operator touches the operating member 7, the palm can be held against the feature 112b with good hand feeling.

Preferably, in the second plane, the ratio of the lateral length L2 of the feature portion 112b to the lateral length L3 of the connecting portion 113 is less than 0.85, the lateral length of the feature portion 112b is less than the lateral length L1 of the motor portion 111, and the lateral length L1 of the motor portion 111 is substantially the same as the lateral length L3 of the connecting portion 113, so that the ratchet wrench 100 is substantially cylindrical in shape, and has a tendency to shrink inwards only at the holding portion 112, and is in a waisted design, so that the customer operation experience is good.

Specifically, the lateral length L2 of the feature 112b is 20-48mm. Further, the lateral length L2 of the feature 112b is 36-40mm. Preferably, the lateral length L2 of the feature 112b is 38mm.

According to the utility model, the motor component 2, the control board 8, the switch component 6 and the battery pack 101 are sequentially arranged in the axial direction, the motor component 2 and the control board 8 are arranged in the motor part 111, the switch component 6 is arranged in the holding part 112, the battery pack 101 is inserted in the connecting part 113, and the holding part 112 is provided with the inwards concave characteristic part 112b, so that the ratchet wrench 100 is integrally in a waisted design, and the operation comfort is improved.

The present utility model is not limited to the above-described embodiments. Those of ordinary skill in the art will readily appreciate that many other alternatives to the ratchet wrench of the present utility model are possible without departing from the spirit and scope of the present utility model. The protection scope of the present utility model is subject to the claims.

Claims (8)

1. The ratchet wrench is provided with a battery pack and comprises a shell, a motor component, a switch component, an output component and a control board, wherein the motor component and the switch component are arranged in the shell, the output component is connected with the motor component, the control board is used for controlling the motor component, and the switch component is electrically connected with the control board; the method is characterized in that: the shell is provided with a motor part for accommodating the motor component, a connecting part for installing the battery pack and a holding part arranged between the motor part and the connecting part, the switch component is arranged on the holding part, the control board is arranged in front of or behind the switch component in the axial direction of the motor component, the holding part is provided with an arc-shaped part connected between the motor part and the connecting part and a characteristic part recessed inwards from the arc-shaped part, the plane formed by intersecting the axis of the motor component and the axis of the output component is a first plane, and the characteristic parts are distributed on two sides of the first plane.

2. The ratchet wrench of claim 1, wherein: in a second plane perpendicular to the first plane, a ratio of a lateral length of the feature to a lateral length of the connection is less than 0.85.

3. The ratchet wrench of claim 2, wherein: the feature has a lateral length of 20-48mm.

4. A ratchet wrench as claimed in claim 3, wherein: the feature has a lateral length of 36-40mm.

5. The ratchet wrench of claim 2, wherein: the battery pack is at least partially accommodated in the connecting part, and the inserting and pulling axis of the battery pack is parallel to or coincides with the axis of the motor assembly.

6. The ratchet wrench of claim 4, wherein: the control board is positioned in front of the switch assembly and is accommodated in the motor part.

7. The ratchet wrench of claim 6, wherein: the lateral length of the feature is less than the lateral length of the motor portion.

8. The ratchet wrench of claim 4, wherein: the switch component is a signal switch.