CN220549046U

CN220549046U - Semitrailer landing leg

Info

Publication number: CN220549046U
Application number: CN202320751405.3U
Authority: CN
Inventors: 薛守浩; 谢羊羊; 姜劲松
Original assignee: Jiangsu Haoxu Special Purpose Vehicle Co ltd
Current assignee: Jiangsu Haoxu Special Purpose Vehicle Co ltd
Priority date: 2023-04-07
Filing date: 2023-04-07
Publication date: 2024-03-01
Anticipated expiration: 2033-04-07

Abstract

The utility model discloses a semitrailer supporting leg, which belongs to the technical field of semitrailers and comprises a mounting assembly and a supporting device, wherein the supporting device is mounted at the bottom of the mounting assembly, the supporting device comprises a first supporting mechanism and a second supporting mechanism, the second supporting mechanism is inserted into the bottom of the first supporting mechanism, and when the semitrailer supporting leg is used, a first motor rotates to drive a first screw to rotate, so that a threaded sleeve can move back and forth on the first screw, a first connecting block and a second connecting block are driven to move, the first supporting mechanism and the second supporting mechanism can simultaneously adjust positions, a second motor rotates to drive a second thread to rotate, so that a telescopic block can be driven to extend, the supporting position of the second supporting mechanism can be independently adjusted, the two supporting legs can support a carriage, the stability of the carriage can be better, and the semitrailer is not deformed.

Description

Semitrailer landing leg

Technical Field

The utility model belongs to the technical field of semitrailers, and particularly relates to a semitrailer landing leg.

Background

The semi-trailer is a transport tool widely applied in the modern transportation industry, the front end of the semi-trailer can be connected with the tractor to be supported and towed by the tractor when the semi-trailer runs, the front end of the semi-trailer can be unhooked from the tractor when the semi-trailer does not run, and a supporting device is arranged at the bottom of the front end of the semi-trailer in order to support the front end of the semi-trailer after the semi-trailer is towed.

Patent application number: 202220092690.8 discloses a semitrailer landing leg, it rotates to drive the threaded rod through the actuating source, the threaded rod then can drive the slide through the screw slider and slide in the spout, the slide then can drive the flexible leg of pneumatic cylinder and carry out horizontal migration, can accomplish the regulation of semitrailer landing leg, make the carriage more stable, when can making the slide receive the pressure in carriage through the elastic component, threaded rod and screw slider can not receive the whole pressure in carriage, thereby prevent that the threaded rod warp because of the atress, can drive the piston and slide downwards through downwardly extending's backing plate, the shower nozzle can then be carried to the gaseous bottom in the hollow pole, the shower nozzle then can blow the sand grain and the dust on ground around the backing plate, prevent that the backing plate from extruding to the sand grain and slipping and receiving extrusion wearing and tearing, thereby guarantee the stability in carriage, and promote the life of backing plate.

However, the individual support legs increase the stress on the bottom of the cabin under a longer cabin, which may cause the cabin to deform under stress, and the individual support legs limit the stability of the cabin.

Disclosure of Invention

Aiming at the problems that the existing single supporting leg can increase the stress of the bottom of a box under a longer carriage, the stress deformation of the carriage can be possibly caused, and the stability of the carriage is limited due to the single supporting leg, the utility model provides a semi-trailer supporting leg which comprises a mounting assembly and a supporting device, wherein the supporting device is mounted at the bottom of the mounting assembly, and the problems can be effectively solved by the cooperation of the supporting device and the supporting device.

In order to solve the problems, the utility model adopts the following technical scheme.

The support leg of the semitrailer comprises a mounting assembly and a supporting device, wherein the supporting device is mounted at the bottom of the mounting assembly.

Specifically, install the bottom at the semitrailer line through the installation assembly, can support semitrailer railway carriage or compartment bottom through strutting arrangement to can each adjustment position, can make the semitrailer railway carriage or compartment more stable.

Further, the installation assembly include the backup pad, backup pad bottom be provided with the second spout, the inboard end top of second spout is provided with the through-hole that transversely pierces through the backup pad, the backup pad bottom is close to the front and back both sides of second spout and is provided with symmetrical first spout.

Specifically, the first chute, the second chute and the through holes are used for installing the supporting device, and the supporting device is installed at the bottom of the semi-trailer carriage through the supporting plate.

Further, the supporting device comprises a first supporting mechanism and a second supporting mechanism, and the second supporting mechanism is inserted into the bottom of the first supporting mechanism.

Specifically, the first support mechanism can support the carriage for the first time, the second support mechanism can support the bottom of the carriage for the second time, and the first support mechanism and the second support mechanism can both adjust positions.

Further, first supporting mechanism include screw sleeve, screw sleeve's bottom one side fixedly connected with first linkage piece, the bottom fixedly connected with first installation piece of first linkage piece, the built-in cylinder of first installation piece to the flexible end swing joint of cylinder has first piece that stretches, first piece and the inside sliding connection of first installation piece that stretches, first installation piece one side is provided with the logical groove that runs through, screw sleeve's internal thread is connected with first screw rod, the rotation end of the one end fixedly connected with first motor of first screw rod.

Specifically, the first screw is driven to rotate through the rotation of the first motor, so that the threaded sleeve can move back and forth on the first screw to adjust the position of the first installation block, and the carriage can be supported through the expansion and contraction of the cylinder to drive the expansion and contraction of the first extension block.

Further, second supporting mechanism include the second motor, the outer wall swing joint of second motor have the assembly piece, the upper end fixedly connected with second connecting block of assembly piece, second connecting block and screw sleeve outer wall opposite side bottom fixedly connected with, the rotation end fixedly connected with second threaded rod of second motor, threaded connection has the flexible piece on the second threaded rod, the terminal bottom fixedly connected with second installation piece of flexible piece, the built-in cylinder of second installation piece, the flexible end swing joint of cylinder has the second to stretch the piece, the bottom sliding connection of second stretch piece and second installation piece, second installation piece both sides fixedly connected with symmetrical L template.

Specifically, rotate through the second motor and drive the second screw thread and rotate to can drive the extension of flexible piece, can make the second stretch the piece to support ground through the inside cylinder of second installation piece is flexible, can make second supporting mechanism follow first supporting mechanism and adjust the position simultaneously through second connecting block and screw sleeve fixed connection.

Further, the first screw rod inserts in the through-hole of backup pad, and the second motor sets up in the through-hole, and inside that the first connecting block inserted the second spout.

Further, the second connecting block insert the inside of second spout, both sides L template and the first spout sliding connection of both sides, the stiff end movable mounting of expansion block is in the inside of logical groove.

Advantageous effects

Compared with the prior art, the utility model has the beneficial effects that:

(1) According to the utility model, when the telescopic device is used, the first screw is driven to rotate through the rotation of the first motor, so that the threaded sleeve can move back and forth on the first screw, the first connecting block and the second connecting block are driven to move, the first supporting mechanism and the second supporting mechanism can simultaneously adjust positions, the second screw is driven to rotate through the rotation of the second motor, the telescopic block can be driven to extend, the supporting position of the second supporting mechanism can be independently adjusted, the two supporting legs can support a carriage, the stability of the carriage is better, and the carriage cannot deform.

(2) According to the utility model, the stability of the second supporting mechanism can be increased through the sliding connection of the L-shaped plates at the two sides and the first sliding grooves at the two sides, and the first supporting mechanism and the second supporting mechanism can be driven to move simultaneously through the single movement of the threaded sleeve, so that the adjusting range is larger.

Drawings

FIG. 1 is a schematic diagram of a semitrailer leg structure in accordance with the present utility model;

fig. 2 is a schematic view of a supporting device according to the present utility model.

The correspondence between the reference numerals and the component names in the drawings is as follows:

1. installing an assembly; 11. a support plate; 12. a first chute; 13. a second chute;

2. a support device; 21. a first support mechanism; 211. a threaded sleeve; 212. a first connection block;

213. a first mounting block; 214. a through groove; 215. a first extension block; 216. a first screw; 217. a first motor;

22. a second support mechanism; 221. a second motor; 222. a mounting block; 223. a second connection block; 224. a telescopic block;

225. a second mounting block; 226. a second extension block; 227. an L-shaped plate.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1, which is a schematic diagram of a semi-trailer leg structure according to a preferred embodiment of the present utility model, a semi-trailer leg of this embodiment includes a mounting assembly 1 and a supporting device 2, wherein the supporting device 2 is mounted at the bottom of the mounting assembly 1.

Specifically, install in the bottom of semitrailer line through installation assembly 1, can support semitrailer railway carriage or compartment bottom through strutting arrangement 2 to can each adjustment position, can make the semitrailer railway carriage or compartment more stable.

Further, the mounting assembly 1 includes a support plate 11, a second chute 13 is disposed at the bottom of the support plate 11, a through hole penetrating through the support plate 11 transversely is disposed at the top of the inner bottom of the second chute 13, and symmetrical first chutes 12 are disposed at the bottom of the support plate 11 near the front and rear sides of the second chute 13.

Specifically, the supporting device 2 is installed through the first and second sliding grooves 12 and 13 and through holes, and is installed at the bottom of the semi-trailer box through the supporting plate 11.

Further, as shown in fig. 2, which is a schematic structural diagram of the supporting device in the present utility model, the supporting device 2 includes a first supporting mechanism 21 and a second supporting mechanism 22, and the second supporting mechanism 22 is inserted into the bottom of the first supporting mechanism 21.

Specifically, the cabin can be supported for the first time by the first support mechanism 21, the cabin bottom can be supported for the second time by the second support mechanism 22, and both the first support mechanism 21 and the second support mechanism 22 can adjust positions.

Further, the first supporting mechanism 21 includes a threaded sleeve 211, a first connecting block 212 is fixedly connected to one side of the bottom of the threaded sleeve 211, a first mounting block 213 is fixedly connected to the bottom of the first connecting block 212, a cylinder is arranged in the first mounting block 213, a first extending block 215 is movably connected to a telescopic end of the cylinder, the first extending block 215 is slidably connected with the inside of the first mounting block 213, a through groove 214 is formed in one side of the first mounting block 213, a first screw 216 is connected to one side of the threaded sleeve 211 in a threaded manner, and a rotating end of the first motor 217 is fixedly connected to one end of the first screw 216.

Specifically, the first motor 217 rotates to drive the first screw 216 to rotate, so that the threaded sleeve 211 moves back and forth on the first screw 216 to adjust the position of the first mounting block 213, and the first extension block 215 is driven to extend and retract through the extension of the air cylinder to support the carriage.

Further, the second supporting mechanism 22 includes a second motor 221, an outer wall of the second motor 221 is movably connected with an assembling block 222, an upper end of the assembling block 222 is fixedly connected with a second connecting block 223, the second connecting block 223 is fixedly connected with the bottom of the other side of the outer wall of the threaded sleeve 211, a rotating end of the second motor 221 is fixedly connected with a second threaded rod, a telescopic block 224 is in threaded connection with the second threaded rod, a second mounting block 225 is fixedly connected with the bottom of the tail end of the telescopic block 224, an air cylinder is arranged in the second mounting block 225, a second extending block 226 is movably connected with the telescopic end of the air cylinder, the second extending block 226 is slidably connected with the bottom of the second mounting block 225, and symmetrical L-shaped plates 227 are fixedly connected with two sides of the second mounting block 225.

Specifically, the second motor 221 rotates to drive the second screw to rotate, so that the telescopic block 224 can be driven to stretch, the second telescopic block 226 can support the ground through the telescopic cylinder inside the second mounting block 225, and the second support mechanism 22 can follow the first support mechanism 21 and simultaneously adjust the position through the fixed connection of the second connecting block 223 and the screw sleeve 211.

Further, the first screw 216 is inserted into the through hole of the support plate 11, the second motor 221 is disposed in the through hole, and the first connection block 212 is inserted into the second chute 13.

Further, the second connecting block 223 is inserted into the second sliding slot 13, the two side L-shaped plates 227 are slidably connected with the two side first sliding slots 12, and the fixed ends of the telescopic blocks 224 are movably mounted in the through slots 214.

Working principle: when the device is used, the first motor 217 rotates to drive the first screw rod 216 to rotate so that the threaded sleeve 211 can move back and forth on the first screw rod 216, the first connecting block 212 and the second connecting block 223 are driven to move, the first supporting mechanism 21 and the second supporting mechanism 22 can be enabled to adjust positions simultaneously, the second motor 221 rotates to drive the second screw rod to rotate, the telescopic block 224 can be driven to extend, the supporting positions of the second supporting mechanism 22 can be independently adjusted, the two supporting legs can be used for supporting a carriage, the stability of the carriage can be enabled to be better, and the device cannot deform.

Example 2

As shown in fig. 1-2, which are schematic diagrams of a semi-trailer leg structure according to another preferred embodiment of the present utility model, in the semi-trailer leg of this embodiment, on the basis of embodiment 1, the stability of the second support mechanism 22 can be increased by slidably connecting the two-sided L-shaped plates 227 with the two-sided first sliding grooves 12, and the first support mechanism 21 and the second support mechanism 22 can be driven to move simultaneously by a single movement of the threaded sleeve 211, so that the adjustment range is wider.

The foregoing is a further elaboration of the present utility model in connection with the detailed description, and it is not intended that the utility model be limited to the specific embodiments shown, but rather that a number of simple deductions or substitutions be made by one of ordinary skill in the art without departing from the spirit of the utility model, should be considered as falling within the scope of the utility model as defined in the appended claims.

Claims

1. A semitrailer leg, characterized in that: the device comprises a mounting assembly (1) and a supporting device (2), wherein the supporting device (2) is mounted at the bottom of the mounting assembly (1), the supporting device (2) comprises a first supporting mechanism (21) and a second supporting mechanism (22), and the second supporting mechanism (22) is inserted into the bottom of the first supporting mechanism (21).

2. A semitrailer leg as claimed in claim 1, wherein: the first supporting mechanism (21) comprises a threaded sleeve (211), a first connecting block (212) is fixedly connected to one side of the bottom of the threaded sleeve (211), a first mounting block (213) is fixedly connected to the bottom of the first connecting block (212), an air cylinder is arranged in the first mounting block (213), a first extending block (215) is movably connected to the telescopic end of the air cylinder, the first extending block (215) is in sliding connection with the inside of the first mounting block (213), a through groove (214) penetrating through is formed in one side of the first mounting block (213), a first screw rod (216) is connected to the internal threads of the threaded sleeve (211), and the rotating end of the first motor (217) is fixedly connected to one end of the first screw rod (216).

3. A semitrailer leg as claimed in claim 2, wherein: the second supporting mechanism (22) include second motor (221), the outer wall swing joint of second motor (221) have assembly piece (222), the upper end fixedly connected with second connecting block (223) of assembly piece (222), second connecting block (223) and screw sleeve (211) outer wall opposite side bottom fixed connection, the rotation end fixedly connected with second threaded rod of second motor (221), threaded connection has telescopic block (224) on the second threaded rod, the terminal bottom fixedly connected with second installation piece (225) of telescopic block (224), the built-in cylinder of second installation piece (225), the flexible end swing joint second stretching piece (226) of cylinder, the bottom sliding connection of second stretching piece (226) and second installation piece (225), second installation piece (225) both sides fixedly connected with symmetrical L template (227).

4. A semitrailer leg as claimed in claim 3, wherein: the mounting assembly (1) comprises a supporting plate (11), a second sliding groove (13) is formed in the bottom of the supporting plate (11), a through hole which transversely penetrates through the supporting plate (11) is formed in the top of the inner side bottom of the second sliding groove (13), and symmetrical first sliding grooves (12) are formed in the front side and the rear side, close to the second sliding groove (13), of the bottom of the supporting plate (11).

5. A semitrailer leg as claimed in claim 4, wherein: the first screw rod (216) is inserted into the through hole of the supporting plate (11), the second motor (221) is arranged in the through hole, and the first connecting block (212) is inserted into the second sliding groove (13).

6. A semitrailer leg as claimed in claim 5, wherein: the second connecting block (223) is inserted into the second sliding groove (13), the L-shaped plates (227) on two sides are in sliding connection with the first sliding grooves (12) on two sides, and the fixed end of the telescopic block (224) is movably arranged in the through groove (214).