CN112223193B

CN112223193B - Electric cross wrench

Info

Publication number: CN112223193B
Application number: CN202011134601.3A
Authority: CN
Inventors: 王一平; 危保国; 苏涛; 黄海波; 吴波勇
Original assignee: Dongfeng Motor Corp
Current assignee: Dongfeng Motor Corp
Priority date: 2020-10-21
Filing date: 2020-10-21
Publication date: 2021-09-28
Anticipated expiration: 2040-10-21
Also published as: CN112223193A

Abstract

The invention discloses an electric cross wrench, which comprises a cross rod, a driving motor with a USB interface and a rotating rod, wherein the cross rod comprises a transverse rod body and a vertical rod body which are intersected and connected to the center; the outer end of the vertical rod body is detachably connected with a first sleeve, and a first clamping groove matched with an automobile tire bolt is formed in the first sleeve; two ends of the transverse rod body are respectively connected with one ends of two rotating rods, and the other ends of the rotating rods are connected with a motor shaft of a driving motor; when driving motor's motor shaft rotated, the rotary rod rotated thereupon to drive vertical body of rod through the horizontal body of rod and rotate, drive first sleeve rotation then, first draw-in groove in the first sleeve drives the automobile tire bolt thereupon and rotates, realizes the dismouting of automobile tire bolt. The invention has the beneficial effects that: the invention has simple structure, reasonable design, convenient placement and small occupied space, and can be disassembled and assembled.

Description

Electric cross wrench

Technical Field

The invention relates to auxiliary equipment for replacing automobile tires, in particular to an electric cross wrench.

Background

In the field of automobile industry, a tire screw can not be screwed down by an electric cross wrench, and the tire screw can be screwed down manually. For drivers who cannot replace tires, particularly women, the strength is low, the tire screws cannot be pulled down, and some tire screws are not rusted for a long time and are abnormally firm. If the automobile suddenly blows out at a high speed, certain potential safety hazards exist when the rescue vehicle arrives. Therefore, it is the most correct way to have a wrench that enables the driver to replace the tire independently and drive the vehicle to a safe area in time.

The electric wrench is a wrench powered by a power supply or a battery, is a tool for screwing a high-strength bolt, is called a high-strength bolt gun, and is mainly divided into an impact wrench, a torsional shear wrench, a fixed torque wrench, a corner wrench and an angular wrench. The conventional electric wrench needs a large torque to screw (tighten) the bolt, is power-consuming to use, and is easy to screw off the bolt to cause damage; the occupied space is also large. For example, chinese patent CN111113016A discloses an electric torque wrench, which comprises a torque assembly, a translational rotating assembly, a supporting rotating assembly, a moment arm connection post, a planetary gear housing, a moment arm base, an output gear assembly, an input conversion gear assembly, an input gear, a drive connection master gear, a gear base, a drive connection pinion, a motor drive gear, a drive motor, a sleeve, a translational support, a rotational base, a clamp, a main frame base, a main frame rotation shaft, a translational main frame, an upper connection rod, a connection rod shaft, a lower connection rod, a gas rod main frame connection plate, a gas rod connection rod, a gas rod, an output gear sleeve, an output gear bayonet lock, and a square tenon head; the main frame base is fixed on the operation table board, and the driving motor drives the gear and the planetary gear to form matched transmission, so that small torque input and large torque output are realized. However, the wrench has the advantages of multiple structural devices, limited force arm expansion, complexity, space occupation, incapability of being disassembled and assembled, high manufacturing cost and unsuitability for being carried on an automobile for replacing tire bolts.

Disclosure of Invention

The invention aims to provide an electric cross wrench which has large torque and small occupied space and can be used for replacing automobile tires, aiming at the defects of the prior art.

The technical scheme adopted by the invention is as follows: an electric cross wrench comprises a cross rod, a driving motor with a USB interface and a rotating rod, wherein the cross rod comprises a transverse rod body and a vertical rod body which are intersected and connected to the center; the outer end of the vertical rod body is detachably connected with a first sleeve, and a first clamping groove matched with an automobile tire bolt is formed in the first sleeve; two ends of the transverse rod body are respectively connected with one ends of two rotating rods, and the other ends of the rotating rods are connected with a motor shaft of a driving motor; when a motor shaft of the driving motor rotates, the rotating rod rotates along with the rotating rod, the transverse rod body drives the vertical rod body to rotate, the first sleeve is driven to rotate, the first clamping groove in the first sleeve drives the automobile tire bolt to rotate along with the first clamping groove, and therefore the automobile tire bolt is dismounted; when the rotary rod is manually rotated, the transverse rod body drives the vertical rod body to rotate, and the first sleeve at the end part of the vertical rod body enables the automobile tire bolt to be further screwed or unscrewed in place through the clamping groove.

According to the scheme, the two ends of the transverse rod body are provided with the vertical second sleeves, and the axes of the second sleeves are parallel to the axis of the first sleeve; and a second clamping groove matched with an automobile tire bolt is formed in the second sleeve.

According to above-mentioned scheme, the rotary rod is L type pole, and the vertical section tip of rotary rod links to each other with the tip of horizontal body of rod, and the horizontal section of rotary rod links to each other with driving motor's motor shaft.

According to the scheme, the end part of the transverse section of the rotating rod and the end part of the transverse section of the other rotating rod are correspondingly connected into a whole to form a U-shaped frame structure; the driving motor is positioned in the U-shaped frame structure, and a motor shaft of the driving motor is connected with the U-shaped frame.

According to the scheme, the vertical section of the rotating rod can be designed into a telescopic structure.

According to the scheme, the end part of the vertical section of the rotating rod is connected with the end part of the transverse rod body through the connecting bolt; the second sleeve is arranged at the connecting bolt.

According to the scheme, the transverse rod body penetrates through the center of the vertical rod body, or the transverse rod body is connected with the vertical rod body through a bolt at the center.

The invention has the beneficial effects that:

1) according to the invention, the motor drives the L-shaped rotating rod to drive the cross rod to rotate, a small amount of electric energy is consumed, and a small rotating force can output a large torque to screw or tighten the bolt.

2) According to the invention, the vertical section of the rotating rod is designed into a telescopic structure, so that the force arm and the rotating torque can be adjusted at any time according to requirements.

3) The invention has simple structure, reasonable design, convenient placement and small occupied space, and can be disassembled and assembled.

Drawings

Fig. 1 is a first schematic structural diagram according to an embodiment of the present invention.

Fig. 2 is a second structural schematic diagram of the present embodiment.

Wherein: 1. a cross bar; 1.1, a transverse rod body; 1.2, a vertical rod body; 2. a drive motor; 2.1, a motor shaft; 3. rotating the rod; 3.1, a vertical section; 3.2, a transverse section; 4. a connecting bolt; 5. a first sleeve.

Detailed Description

For a better understanding of the present invention, reference is made to the following detailed description taken in conjunction with the accompanying drawings.

As shown in fig. 1 and 2, an electric cross wrench comprises a cross bar 1, a driving motor 2 with a USB interface, and a rotating rod 3, wherein the cross bar 1 comprises a transverse bar body 1.1 and a vertical bar body 1.2, which are intersected and connected to the center; the outer end of the vertical rod body 1.2 is detachably connected with a first sleeve 5, and a first clamping groove matched with an automobile tire bolt is formed in the first sleeve 5; two ends of the transverse rod body 1.1 are respectively connected with one ends of two rotating rods 3, and the other ends of the rotating rods 3 are connected with a motor shaft 2.1 of the driving motor 2; when a motor shaft 2.1 of the driving motor 2 rotates, the rotating rod 3 rotates along with the rotating rod, the transverse rod body 1.1 drives the vertical rod body 1.2 to rotate, the first sleeve 5 is driven to rotate, and the first clamping groove in the first sleeve 5 drives the automobile tire bolt to rotate along with the first clamping groove, so that the disassembly and assembly of the automobile tire bolt are realized; when the rotating rod 3 is manually rotated, the transverse rod body 1.1 drives the vertical rod body 1.2 to rotate, and the first sleeve 5 at the end part of the vertical rod body 1.2 enables the automobile tire bolt to be further screwed or unscrewed in place through the clamping groove. In the invention, the driving motor 2 is additionally provided with the USB interface, so that a mobile power supply can be used for charging when the electric quantity is insufficient, or the USB interface in the automobile can be used for charging.

Preferably, vertical second sleeves are installed at two ends of the transverse rod body 1.1, and the axes of the second sleeves are parallel to the axis of the first sleeve 5; and a second clamping groove matched with an automobile tire bolt is formed in the second sleeve. The second sleeve is not shown in the drawings.

In the invention, sleeves (with clamping grooves) are arranged on the cross rod 1 in three directions (the end parts of the vertical rod bodies 1.2 and the end parts of the two transverse rod bodies 1.1) and are used for adapting to automobile tire bolts of different models.

Preferably, the rotating rod 3 is an L-shaped rod, the end of the vertical section 3.1 of the rotating rod 3 is connected with the end of the transverse rod body 1.1, and the transverse section 3.2 of the rotating rod 3 is connected with the motor shaft 2.1 of the driving motor 2. In the invention, the end part of the transverse section 3.2 of the rotary rod 3 is correspondingly connected with the end part of the transverse section 3.2 of the other rotary rod 3 into a whole to form a U-shaped frame structure; the driving motor 2 is positioned in the U-shaped frame structure, and a motor shaft 2.1 of the driving motor 2 is connected with the U-shaped frame.

Preferably, the vertical section 3.1 of the rotating rod 3 can be designed to be a telescopic structure so as to correspondingly adjust the size of the rotating force arm according to the length of the cross rod 1, thereby achieving the purpose of adjusting the rotating torque.

In the invention, the end part of the vertical section 3.1 of the rotating rod 3 is connected with the end part of the transverse rod body 1.1 through a connecting bolt 4; a second sleeve may be provided at the connecting bolt 4.

Preferably, the transverse rod body 1.1 penetrates through the center of the vertical rod body 1.2, and the two are clamped; or the transverse rod body 1.1 and the vertical rod body 1.2 are connected through a central bolt.

The automobile tire bolt screwing device is based on a cross wrench, two modes are designed, and the automobile tire bolt screwing device comprises a driving motor 2 and a manual driving device, when a first sleeve 5 at the end part of a vertical rod body 1.2 of a cross rod 1 is needed to screw or unscrew an automobile tire bolt, a vertical section 3.1 of a rotating rod 3 is connected with the end part of a transverse rod body 1.1, a transverse section 3.2 of the rotating rod 3 is connected with a motor shaft 2.1 of the driving motor 2, the driving motor 2 drives the vertical rod body 1.2 to rotate through the rotating rod 3 and the transverse rod body 1.1 (the position of the driving motor 2 is unchanged while the cross rod 1 rotates), the first sleeve 5 at the end part rotates along with the rotating rod, the automobile tire bolt is clamped through a first clamping groove to rotate, the rotating rod 3 is manually rotated, and the automobile tire bolt is further screwed in place. When the second sleeve at one end of the transverse rod body 1.1 is needed, the vertical section 3.1 of the rotary rod 3 is connected with the end part of the other end of the transverse rod body 1.1, the driving motor 2 drives the transverse rod body 1.1 to rotate through the rotary rod 3, the second sleeve at the end part of the transverse rod body 1.1 rotates along with the second sleeve, the automobile tire bolt is clamped through the second clamping groove to enable the automobile tire bolt to rotate, the rotary rod 3 at the other side of the transverse rod body 1.1 is manually rotated, and the automobile tire bolt is further screwed in place.

According to the invention, the cross rod 1 is composed of a transverse rod body 1.1 and a vertical rod body 1.2, a rotary rod 3 and the transverse rod body 1.1, the rotary rod 3 and a motor shaft 2.1 of a driving motor 2 are detachably connected, when a bolt is required to be screwed down or loosened, the cross rod 1, the driving motor 2 and the rotary rod 3 can be assembled in the above mode, when the bolt is not required, the cross rod 1, the driving motor 2 and the rotary rod 3 can be detached and placed in a storage box, the space is not occupied at all, the carrying is convenient, and the carrying is convenient and the use can be carried out at any time.

It should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and the present invention is not limited thereto, and although the present invention has been described in detail with reference to the embodiments, it will be apparent to those skilled in the art that modifications can be made to the technical solutions described in the above-mentioned embodiments, or equivalent substitutions of some technical features, but any modifications, equivalents, improvements and the like within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An electric cross wrench is characterized by comprising a cross rod, a driving motor with a USB interface and a rotating rod, wherein the cross rod comprises a transverse rod body and a vertical rod body which are intersected and connected to the center; the outer end of the vertical rod body is detachably connected with a first sleeve, and a first clamping groove matched with an automobile tire bolt is formed in the first sleeve; two ends of the transverse rod body are respectively connected with one ends of two rotating rods, and the other ends of the rotating rods are connected with a motor shaft of a driving motor; when a motor shaft of the driving motor rotates, the rotating rod rotates along with the rotating rod, the transverse rod body drives the vertical rod body to rotate, the first sleeve is driven to rotate, the first clamping groove in the first sleeve drives the automobile tire bolt to rotate along with the first clamping groove, and therefore the automobile tire bolt is dismounted; when the rotating rod is manually rotated, the transverse rod body drives the vertical rod body to rotate, and the first sleeve at the end part of the vertical rod body enables the automobile tire bolt to be further screwed or unscrewed in place through the clamping groove; the rotating rod is an L-shaped rod, the end of the vertical section of the rotating rod is connected with the end of the transverse rod body, and the transverse section of the rotating rod is connected with a motor shaft of the driving motor; the end part of the transverse section of the rotating rod and the end part of the transverse section of the other rotating rod are correspondingly connected into a whole to form a U-shaped frame structure; the driving motor is positioned in the U-shaped frame structure, and a motor shaft of the driving motor is connected with the U-shaped frame.

2. An electric cross wrench as claimed in claim 1, wherein a second sleeve is vertically mounted at each end of the transverse rod, and the axis of the second sleeve is parallel to the axis of the first sleeve; and a second clamping groove matched with an automobile tire bolt is formed in the second sleeve.

3. An electric cross wrench as claimed in claim 1, characterized in that the vertical section of the rotary rod is designed as a telescopic structure.

4. The electric cross wrench as claimed in claim 1, wherein the end of the vertical section of the rotating rod is connected with the end of the transverse rod body by a connecting bolt; the second sleeve is arranged at the connecting bolt.

5. An electric cross wrench as claimed in claim 1, wherein the transverse rod passes through the center of the vertical rod, or the transverse rod and the vertical rod are connected by a central bolt.