CN209870351U - Semi-trailer frame rotary supporting device - Google Patents

Abstract

The utility model discloses a semi-trailer frame rotation support device, including base shell, pivot and handle, the fixed block is installed in the outside of base shell, and the outside of fixed block installs the stopper to the lower extreme fixedly connected with magnet of stopper, the internally mounted of fixed block has the movable block, and the internal surface mounting of fixed block has the connection tooth piece, the internal surface fixedly connected with torque spring who connects the tooth piece, and torque spring is connected with the inside of fixed block, connect the outside of tooth piece and install the stay cord, and the stay cord is connected with the stopper, the surface at the base shell is installed in the pivot, the outside at the support frame is installed to the handle. This semi-trailer frame rotation support device, the user only need handheld handle drive gear rotate, can let its inside threaded connection's screw thread supporting shoe can carry out the regulation of position from top to bottom, and the setting of stopper, can carry out spacing fixed to the screw thread supporting shoe of accomodating.

Description

Semi-trailer frame rotary supporting device

Technical Field

The utility model relates to a semi-trailer frame technical field specifically is a semi-trailer frame rotation support device.

Background

The semitrailer is a trailer with an axle arranged behind the gravity center of the vehicle and a coupling device capable of transmitting horizontal and vertical forces to a tractor, a frame is used as a main bearing part of the semitrailer, the occupied weight ratio is the largest, weight reduction of the frame is emphasized at home and abroad, a rotary supporting device is required when the semitrailer frame is used, but the existing semitrailer frame rotary supporting device has certain defects,

the existing semi-trailer frame rotary supporting device cannot enable a user to carry out limiting support on the ground with different heights as required, inconvenience is brought to the operation of the user, and the existing semi-trailer frame rotary supporting device cannot be stably stored and fixed, so that certain use defects exist.

To solve the above problems, innovative design is urgently needed on the basis of the original rotary supporting device structure.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a semi-trailer frame rotary supporting device to the unable user that lets who proposes in solving above-mentioned background art carries out spacing support to the ground of co-altitude as required, the unable stable fixed problem of accomodating.

In order to achieve the above object, the utility model provides a following technical scheme: a semi-trailer frame rotation supporting device comprises a base shell, a rotating shaft and a handle, wherein a fixed block is installed on the outer side of the base shell, a limiting block is installed on the outer side of the fixed block, a magnet is fixedly connected to the lower end of the limiting block, a movable block is installed inside the fixed block, a connecting tooth block is installed on the inner surface of the fixed block, a torsion spring is fixedly connected to the inner surface of the connecting tooth block and is connected with the inside of the fixed block, a pull rope is installed on the outer side of the connecting tooth block and is connected with the limiting block, the rotating shaft is installed on the outer surface of the base shell, a supporting frame is installed on the outer side of the rotating shaft, the handle is installed on the outer side of the supporting frame, a first transmission gear is installed at the lower end of the outer side of the handle, and the lug is connected with the inner surface of the support frame, and a thread supporting block is arranged in the second transmission gear.

Preferably, the limiting block is rotatably connected with the fixed block and is of an L-shaped structure, and the limiting block is magnetically connected with the base shell through the magnet.

Preferably, the movable block and the fixed block form a slidable structure, and the lower end of the movable block is connected with the outer surface of the support frame in a clamping manner.

Preferably, the connecting tooth block is in meshed connection with the outer surface of the movable block, and the connecting tooth block and the inner surface of the fixed block form an elastic structure through a torsion spring.

Preferably, the second transmission gear and the inner surface of the support frame form a rotatable structure through a bump, and the second transmission gear is in meshed connection with the first transmission gear.

Preferably, the upper end of the threaded support block is of a square structure, and the threaded support block is in threaded connection with the inner surface of the second transmission gear.

Compared with the prior art, the beneficial effects of the utility model are that: according to the semi-trailer frame rotary supporting device, a user only needs to hold the handle to drive the transmission gear to rotate, the threaded supporting block in threaded connection inside the semi-trailer frame can be adjusted in the vertical position, and the limiting block is arranged to limit and fix the received threaded supporting block;

1. the adjustable threaded supporting block is arranged, a user only needs to hold a handle to drive the first transmission gear to rotate, and then the meshed second transmission gear can be driven to synchronously rotate, so that the threaded supporting block in threaded connection can be adjusted in the vertical position, the ground with different heights can be supported according to the requirements of the user, and the application range of the device is fully expanded;

2. set up mobilizable stopper, the user is when rotating the movable block contact of fixed block inside with the screw thread supporting shoe, and then drives the stopper through the stay cord and rotate to the lower extreme of screw thread supporting shoe to cooperation magnet and base shell between fixed carry out spacing fixed to the screw thread supporting shoe of accomodating, abundant improvement the device's practicality.

Drawings

FIG. 1 is a schematic front sectional view of the present invention;

FIG. 2 is a schematic view of a cross-sectional view of a second transmission gear of the present invention;

FIG. 3 is a schematic view of the cross-sectional structure of the threaded support block of the present invention;

FIG. 4 is a schematic view of the storage front view structure of the present invention;

fig. 5 is the schematic view of the sectional side view of the storage device of the present invention.

In the figure: 1. a base shell; 2. a fixed block; 3. a limiting block; 4. a magnet; 5. a movable block; 6. connecting the tooth blocks; 7. a torsion spring; 8. pulling a rope; 9. a rotating shaft; 10. a support frame; 11. a handle; 12. a first drive gear; 13. a second transmission gear; 14. a bump; 15. and a thread support block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a semi-trailer frame rotary supporting device comprises a base shell 1, a fixed block 2, a limiting block 3, a magnet 4, a movable block 5, a connecting tooth block 6, a torsion spring 7, a pull rope 8, a rotating shaft 9, a supporting frame 10, a handle 11, a first transmission gear 12, a second transmission gear 13, a convex block 14 and a threaded supporting block 15, wherein the fixed block 2 is installed on the outer side of the base shell 1, the limiting block 3 is installed on the outer side of the fixed block 2, the magnet 4 is fixedly connected to the lower end of the limiting block 3, the limiting block 3 is rotatably connected with the fixed block 2, the limiting block 3 is of an L-shaped structure, the limiting block 3 is magnetically connected with the base shell 1 through the magnet 4, and the L-shaped limiting block 3 can be fixed with the outer surface of the base shell 1 through the magnet 4 after rotating along the outer side of;

the movable block 5 is arranged inside the fixed block 2, the connecting tooth block 6 is arranged on the inner surface of the fixed block 2, the movable block 5 and the fixed block 2 form a slidable structure, the lower end of the movable block 5 is connected with the outer surface of the support frame 10 in a clamping manner, and the upper end of the support frame 10 can slide upwards along the fixed block 2 after contacting the movable block 5;

the inner surface of the connecting tooth block 6 is fixedly connected with a torsion spring 7, the torsion spring 7 is connected with the inside of the fixed block 2, a pull rope 8 is installed on the outer side of the connecting tooth block 6, the pull rope 8 is connected with the limiting block 3, the connecting tooth block 6 is in meshed connection with the outer surface of the movable block 5, the connecting tooth block 6 and the inner surface of the fixed block 2 form an elastic structure through the torsion spring 7, the connecting tooth block 6 can rotate along with the meshed connection with the movable block 5, and the pull rope 8 on the outer side of the connecting tooth block is driven to perform winding work;

the rotating shaft 9 is installed on the outer surface of the base shell 1, the support frame 10 is installed on the outer side of the rotating shaft 9, the handle 11 is installed on the outer side of the support frame 10, the first transmission gear 12 is installed at the lower end of the outer side of the handle 11, the second transmission gear 13 is installed on the inner surface of the support frame 10, the convex block 14 is fixedly connected to the outer surface of the second transmission gear 13, the convex block 14 is connected with the inner surface of the support frame 10, the second transmission gear 13 and the inner surface of the support frame 10 form a rotatable structure through the convex block 14, the second transmission gear 13 is in meshed connection with the first transmission gear 12, a user can drive the first transmission gear 12 to rotate by holding the handle 11 with the hand, and then;

the inside of second drive gear 13 is installed with screw thread supporting shoe 15, and the upper end of screw thread supporting shoe 15 is square column structure, and screw thread supporting shoe 15 is threaded connection with the internal surface of second drive gear 13, lets screw thread supporting shoe 15 can carry out the regulation change of upper and lower position along with the continuous rotation of second drive gear 13.

The working principle is as follows: when the semi-trailer frame rotary supporting device is used, according to the figures 1-5, firstly, the device is installed at a position needing to work, then a user holds the handle 11 to rotate along the supporting frame 10 according to the height positions of different ground surfaces, at the moment, the handle 11 drives the connected first transmission gear 12 to rotate, the second transmission gear 13 meshed with the handle rotates synchronously along the inside of the supporting frame 10 through the lug 14, and further the threaded supporting block 15 in threaded connection inside the handle moves downwards, the user adjusts the handle to be attached to the ground surface, when the user needs to store the threaded supporting block 15, the handle 11 rotates again along the outside of the supporting frame 10, at the moment, the second transmission gear 13 rotates along the inside of the supporting frame 10 through the lug 14 again, and further the connected threaded supporting block 15 is driven to store upwards, after the storage of the threaded supporting block 15 is completed, the handheld support frame 10 of user rotates to base shell 1 department along pivot 9, treat when the outside of support frame 10 contacts movable block 5 in the fixed block 2, movable block 5 will be the pressurized upwards slip, at this moment it rotates with the jogged connection tooth piece 6 will rolling torsion spring 7, and the stay cord 8 of connecting the tooth piece 6 outside can be with step rolling work, stopper 3 of being connected with 8 outer ends of stay cord this moment will rotate to the inboard, through the outer surface actuation of magnet 4 with fixed block 2 until its lower extreme, and then to the lower extreme spacing of support frame 10, can accomplish and accomodate the work, when the user needs to use once more, only need handheld stopper 3 outwards to rotate, make it break away from and base shell 1 between the magnetism actuation state can, holistic practicality has been increased.

Those not described in detail in this specification are within the skill of the art.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a semi-trailer frame rotation support device, includes basic shell (1), pivot (9) and handle (11), its characterized in that: the outer side of the base shell (1) is provided with a fixed block (2), the outer side of the fixed block (2) is provided with a limiting block (3), the lower end of the limiting block (3) is fixedly connected with a magnet (4), the inner part of the fixed block (2) is provided with a movable block (5), the inner surface of the fixed block (2) is provided with a connecting tooth block (6), the inner surface of the connecting tooth block (6) is fixedly connected with a torsion spring (7), the torsion spring (7) is connected with the inner part of the fixed block (2), the outer side of the connecting tooth block (6) is provided with a pull rope (8), the pull rope (8) is connected with the limiting block (3), the rotating shaft (9) is arranged on the outer surface of the base shell (1), the outer side of the rotating shaft (9) is provided with a support frame (10), the handle (11) is arranged on the outer side of the support frame (10), and the outer, the inner surface of the support frame (10) is provided with a second transmission gear (13), the outer surface of the second transmission gear (13) is fixedly connected with a lug (14), the lug (14) is connected with the inner surface of the support frame (10), and a thread supporting block (15) is arranged inside the second transmission gear (13).

2. The semi-trailer frame rotation support device of claim 1, wherein: stopper (3) are connected for rotating with fixed block (2), and stopper (3) are "L" type structure to stopper (3) constitute magnetism through magnet (4) and base shell (1) and are connected.

3. The semi-trailer frame rotation support device of claim 1, wherein: the movable block (5) and the fixed block (2) form a slidable structure, and the lower end of the movable block (5) is connected with the outer surface of the support frame (10) in a clamping manner.

4. The semi-trailer frame rotation support device of claim 1, wherein: the outer surfaces of the connecting tooth block (6) and the movable block (5) are connected in a meshed mode, and the connecting tooth block (6) and the inner surface of the fixed block (2) form an elastic structure through a torsion spring (7).

5. The semi-trailer frame rotation support device of claim 1, wherein: the second transmission gear (13) and the inner surface of the support frame (10) form a rotatable structure through a bump (14), and the second transmission gear (13) is in meshed connection with the first transmission gear (12).

6. The semi-trailer frame rotation support device of claim 1, wherein: the upper end of the threaded support block (15) is of a square structure, and the threaded support block (15) is in threaded connection with the inner surface of the second transmission gear (13).