CN108703472A - A kind of anti-skidding pulling-rod trunk of four-wheel - Google Patents

Abstract

The invention discloses a four-wheel anti-skid trolley suitcase, which uses mechanism transmission and the principle of spring deformation to generate elastic force. The box body is fixed on the chassis mechanism, and the pin of the locking switch is pulled up or down, and the mechanism The movement will be transmitted to the lock pin through the main control rod, the transmission rod and the lever, and the lock pin will be pulled or pressed, and the wheel frame and the wheel can rotate freely or be locked, realizing four-wheel rotation. The trolley suitcase can be freely pulled or anti-slip function; the invention can solve the problem that the suitcase is not controlled during the acceleration, deceleration or turning process of the vehicle, which leads to free sliding and bumps into other passengers. At the same time, the use of a simple mechanical structure can It ensures economy and is convenient for disassembly and maintenance. The whole process of the invention is simple, convenient and reliable. It is widely applicable to all kinds of four-wheel trolley suitcases, effectively improves the reliability of suitcase anti-slip, and has good practical value and popularization. value.

Description

A four-wheel anti-skid trolley suitcase

technical field

The invention relates to the technical field of daily necessities, in particular to a four-wheel anti-skid trolley suitcase.

Background technique

With the development of society, transportation is becoming more and more convenient and fast, and people travel more and more frequently. When company employees go on business trips, students travel to and from school during winter and summer vacations, and people travel during vacations, they always need to carry important materials, clothing or souvenirs, etc. Four-wheel trolley suitcases have become indispensable items for people to travel and travel. The biggest advantage of the four-wheel trolley suitcase is labor-saving, and people can move the suitcase full of articles to any direction without using a lot of strength. However, it is precisely because of this that on buses or subways, it often happens that the suitcase slides and bumps into other passengers due to vehicle acceleration, deceleration or turning.

In order to avoid the potential safety hazard of bumping the passengers on the car, passengers who carry four-wheel pull-bar suitcases will feel embarrassed because they do not control the suitcases to bump into other passengers, causing unnecessary troubles to people, and it is necessary to carry out four-wheel pull-bar suitcases. Transformation, that is, by adding anti-skid devices to prevent it from sliding due to vehicle speed change or steering. At present, there is still a lack of a convenient and reliable anti-skid design for four-wheel suitcases, and there are obvious disadvantages: (1) The anti-skid support is installed on the side of the suitcase, and the suitcase needs to be lifted and placed sideways to play an anti-skid effect. It is very inconvenient to use; (2) multiple anti-skid support devices are installed at the bottom of the suitcase, and you need to bend over to adjust them one by one when using it, which is time-consuming and laborious; (3) the structure is huge and the design is complicated, which not only increases the price of the suitcase, but also for the airport Checking luggage may cause damage to the internal structure, which may also affect the loss of anti-skid function. Based on the above problems, the present invention provides a four-wheel anti-skid pull bar suitcase.

Contents of the invention

In order to avoid the potential safety hazard of bruising passengers on board, the present invention makes passengers carrying four-wheel trolley suitcases feel embarrassed because they do not control the suitcases to bump into other passengers, causing unnecessary troubles to people, and carries out four-wheel trolley suitcase remodel. Add appropriate devices to it to make it easy to carry and transport, and give it non-slip characteristics when it is placed on the ground, so that people who go out can free their hands during the ride and don't have to worry about the box being with the vehicle The problem of sliding due to the change of the motion state is more convenient for people's travel experience, and has very good practical value and promotion value.

In order to achieve the above object, the present invention provides a four-wheel anti-skid trolley suitcase, which includes a box body and a chassis mechanism; the chassis mechanism includes: a chassis, an active device, a transmission device, a wheel group; the active device includes: a lock switch, a main control lever; the transmission device includes: a primary transmission rod, a secondary transmission rod, and a lever; the wheel set includes: a lock pin, a lock frame, a spring, a wheel frame, wheel;

The box body is fixedly placed on the chassis mechanism, the chassis mechanism is placed on the ground, the active device is fixedly installed on the chassis, and the fixed chute of the locking switch of the active device is placed in the box body In the middle part of the lower end of the pull rod side, the sliding block with groove of the locking switch is in the fixed chute of the locking switch, one end of the main control rod is in the groove of the locking switch, and the middle part of the main control rod The end of the diamond-shaped block passing through the central through hole of the chassis and the other end of the main control rod is hinged to one end of the two primary transmission rods, and the two primary transmission rods are symmetrical about the center of the diamond-shaped block of the main control rod, The other end of the primary transmission rod is hinged to one end of the two secondary transmission rods, and the two secondary transmission rods are axially symmetrical with respect to the primary transmission rod, and the other end of the secondary transmission rod is hinged to the lever, so The lever is hinged on the chassis at the middle part of the rod, and the primary transmission rod, the secondary transmission rod, and the lever are all located below the chassis, and two pairs of the secondary transmission rods are formed with the lever. Arranged in a "W" shape, the other end of the lever is hinged to one end of the lock pin, the spring is sleeved on the lock pin, and one end of the spring is against the inner groove surface of the lock frame, and the other end is connected to the lock pin. The lock pin is connected, the lock pin and the spring are in the straight groove of the lock frame, the lock frame is fixed on the four corners of the lower part of the chassis, and the central axis of the lock frame is in the same shape as the side line of the chassis. 45° angle, the central axis of the lock frame is 90° each other, the wheel frame is connected and installed under the lock frame, and a groove is opened on the wheel frame rotating shaft for one end of the lock pin to enter and exit. Wheels are installed under the wheel frame, and the wheels are in contact with the ground.

Preferably, the primary transmission rod, the secondary transmission rod, and the lever are rigid rods.

Preferably, the diameter of the spring is between the cylinder diameter of the lock pin rod and the width of the groove of the lock frame.

Optimally, the protruding round table of the lock frame cooperates with the wheel frame.

The beneficial effect of a four-wheel anti-slip trolley suitcase of the present invention is that the present invention can solve the problem that the suitcase is not controlled during the acceleration, deceleration or turning process of the vehicle, resulting in free sliding and bumping into other passengers, and provides a convenient, The reliable and economical four-wheel non-slip trolley suitcase can save people from worrying about the embarrassing scene when the suitcase encounters others due to unexpected situations during travel and transportation. At the same time, the use of a simple mechanical structure can ensure economic efficiency and The utility model is convenient for disassembly and maintenance, and the whole use process of the invention is simple, convenient and reliable, and is widely applicable to all kinds of four-wheel trolley suitcases, effectively improves the reliability of the suitcases against slipping, and has good practical value and popularization value.

Description of drawings

Fig. 1 is a three-dimensional perspective view of a four-wheel anti-skid trolley suitcase according to the present invention.

Fig. 2 is a kind of four-wheel anti-skid drawbar suitcase chassis and active device of the present invention.

Fig. 3 is a kind of four-wheel antiskid trolley suitcase transmission device and wheel set of the present invention.

Fig. 4 is a kind of four-wheel anti-skid pull bar suitcase locking switch and main control rod of the present invention.

Fig. 5 is a kind of four-wheel anti-skid pull bar suitcase transmission device of the present invention.

Fig. 6 is a kind of four-wheel anti-skid pull bar suitcase lock frame, spring and lock pin of the present invention.

Fig. 7 is a kind of four-wheel anti-skid draw bar suitcase wheel frame and wheel of the present invention.

Fig. 8 is a schematic diagram of the state of the active device of a four-wheel anti-skid trolley luggage case in a free state according to the present invention.

Fig. 9 is a schematic diagram of the transmission device and the state of the wheel set of a four-wheel anti-skid trolley luggage case in a free state according to the present invention.

Fig. 10 is a schematic diagram of the state of the active device in the non-slip state of a four-wheel anti-skid trolley luggage case according to the present invention.

Fig. 11 is a schematic diagram of the transmission device and the state of the wheel set when a four-wheel anti-slip pull-bar luggage case is in the non-slip state of the present invention.

In the figure: 1, box body; 2, chassis mechanism; 21, chassis; 22, active device; 23, transmission device; 24, wheel set; 221, lock switch; 222, main control lever; 231, primary transmission lever; 232, secondary transmission rod; 233, lever; 241, lock pin; 242, lock frame; 243, spring; 244, wheel frame; 245, wheel.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, various embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. However, those of ordinary skill in the art can understand that, in each implementation manner of the present invention, many technical details are provided for readers to better understand the present application. However, even without these technical details and various changes and modifications based on the following implementation modes, the technical solution claimed in each claim of the present application can be realized.

In order to solve the above-mentioned technical problems, the present invention provides a four-wheel anti-skid trolley suitcase. This embodiment is described in detail with reference to FIGS. 1 to 5 .

Described a kind of four-wheel anti-skid trolley suitcase comprises: box body 1, chassis mechanism 2, as shown in Figure 1; Described chassis mechanism 2 comprises: chassis 21, driving device 22, transmission device 23, wheel group 24 constitute, as As shown in Figures 2 and 3; the box body 1 is fixedly placed on the chassis mechanism 2, and the chassis mechanism 2 is placed on the ground, as shown in Figure 1 .

The active device 22 is fixedly mounted on the chassis 21, one end of the transmission device 23 is hinged to the active device 22, and the other end of the transmission device 23 is connected to the wheel set 24, and the wheel set 24 is installed on On the four corners of the chassis 21, the axes of the wheels 24 are arranged at an angle of 45° to the edge of the chassis, and the axes of the wheels 24 are mutually formed at 90°, as shown in FIGS. 2 and 3 .

The active device 22 includes: a lock switch 221 and a main control lever 222; the fixed chute of the lock switch 221 is fixed in the middle part of the lower end of the pull bar side of the box body 1, and the grooved slider of the lock switch 221 is on the lock In the fixed chute of the switch 221 , one end of the main control rod 222 is installed on the chassis 21 , and one end of the main control rod 222 is in the groove of the slider of the locking switch 221 , as shown in FIG. 4 .

Described transmission device 23 comprises: primary transmission rod 231, secondary transmission rod 232, lever 233; The other end of the transmission rod 231 is hinged to one end of the secondary transmission rod 232, the other end of the secondary transmission rod 232 is hinged to the lever 233, and the lever 233 is hinged to the chassis 21 in the middle of the rod, and The primary transmission rod 231, the secondary transmission rod 232, and the lever 233 are located below the chassis 21, and two pairs of the secondary transmission rods 232 and the lever 233 are arranged in a "W" shape, as shown in Figure 5 Show.

The wheel set 24 includes: a lock pin 241, a lock frame 242, a spring 243, a wheel frame 244, and a wheel 245, as shown in Figures 6 and 7; the lock pin 241 is installed in the straight groove of the lock frame 242 , the lock frame 242 is fixedly installed on the chassis 21, the spring 243 is sleeved on the lock pin 241, and one end of the spring 243 is against the inner groove surface of the lock frame 242, and the other end of the spring 243 Connected with the lock pin 241 , the wheel frame 244 is mounted on the lock frame 242 , the wheel 245 is mounted on the wheel frame 244 , and the wheel 245 is in contact with the ground, as shown in FIG. 2 .

When using the suitcase, the suitcase has two working states of free and anti-slip.

In the free state, turn the grooved slider of the locking switch 221 to the lower part of the fixed chute, as shown in Figure 8, the slider of the locking switch 221 drives the main control lever 222 to rotate, and the main control lever 222 rotates. The control rod 222 drives the first-stage transmission rod 231 to move. As shown in FIG. When the lever 233 of the chassis 21 is pressed, the lever 233 reversely transmits the movement of the secondary transmission rod 232 to the lock pin 241, and the lock in the straight groove of the lock frame 242 The pin 241 will be pulled out a certain distance, and the spring 243 will be squeezed by the lock pin 241 and the lock frame 242 to store energy for the device to switch to the anti-skid state, and the wheel frame 244 can be connected to the The bearing of lock frame 242 rotates freely, and all described wheel sets 24 can rotate freely towards any direction, and described wheel 245 can roll towards any direction, and now case can be dragged freely.

In the anti-slip state, turn the grooved slider of the locking switch 221 to the upper part of the fixed chute, as shown in Figure 10, the slider of the locking switch 221 drives the main control lever 222 to rotate, and the main control lever 222 The control rod 222 drives the first-stage transmission rod 231 to move. As shown in FIG. lever 233, then the lever 233 reversely transmits the movement of the secondary transmission rod 232 to the lock pin 241, and the lock pin 241 is pushed into the straight groove of the lock frame 242 by the elastic force of the spring 243 slot, at this time, turn the box body 1 back and forth, and the wheels 245 will drive the wheel set 24 to rotate back and forth due to frictional forces. The slot just turns to the axis of the lock pin 241, and due to the effect of the spring 243, the lock pin 241 will automatically block the wheel frame 244. After the box rotates back and forth several times, as long as the wheel set 24, any three are stuck, that is, the rolling directions of the wheels 245 in two of the wheel sets 24 are on two parallel lines, while the rolling directions of the wheels 245 in the other of the wheel sets 24 If the direction is on a straight line perpendicular to these two parallel lines, then the whole device can play an anti-slip effect.

Claims (4)

1. a kind of anti-skidding pulling-rod trunk of four-wheel, it is characterised in that including：Babinet, body chassis；The body chassis includes：Bottom Disk, aggressive device, transmission device, wheel group；The aggressive device includes：Locking switch, main control bar；The transmission device packet It includes：Primary transmission bar, secondary transmission bar, lever；The wheel group includes：Lock pin, lock frame, spring, wheel carrier, wheel；

For the babinet fixed placement on the body chassis, the body chassis is positioned over ground, and the aggressive device is fixed On the chassis, the fixed chute of the locking switch of the aggressive device is placed in the middle part of the lower end of babinet pull rod side, For the fluted sliding block of band of the locking switch in the fixed chute of the locking switch, described main control bar one end is in institute It states in the groove of locking switch, the diamond shape of chassis center through hole and the main control bar other end is passed through in the middle part of the main control bar Block end is hinged two primary transmission bar one end, and diamond block of two primary transmission bars about the main control bar Central symmetry, the primary transmission bar other end are hinged two secondary transmission bar one end, and two secondary transmission bars About primary transmission bar axial symmetry, the secondary transmission bar other end is hinged the lever, and the lever is hinged in the middle part of bar On the chassis, and the primary transmission bar, the secondary transmission bar, the lever are all located at below the chassis, two pairs of institutes It states secondary transmission bar and arranges that the lever other end is hinged described lock pin one end, and the spring pocket exists at " W " shape with the lever On the lock pin, and the spring one end withstands on the lock frame inner groove faces, and the other end is connected with the lock pin, the lock pin and The spring is in the straight groove of the lock frame, and the lock frame is fixed on the quadrangle of the chassis lower part, and the lock frame Central axes are in 45° angle with the chassis sideline, and the lock frame central axes are mutually in 90 ° two-by-two, and the wheel carrier connection is mounted on described It locks below frame, and recessing is passed in and out for described lock pin one end in the wheel carrier shaft, the wheel is mounted under the wheel carrier, institute Wheel is stated to contact with ground.

2. the anti-skidding pulling-rod trunk of a kind of four-wheel according to claim 1, it is characterised in that：It is the primary transmission bar, described Secondary transmission bar, the lever are rigid rod.

3. the anti-skidding pulling-rod trunk of a kind of four-wheel according to claim 1, it is characterised in that：The spring diameter is between described Between lock pin bar body diameter and lock frame recess width.

4. the anti-skidding pulling-rod trunk of a kind of four-wheel according to claim 1, it is characterised in that：It is described lock frame protrusion round platform with The wheel carrier cooperates.