CN218228777U

CN218228777U - Back door lifting device of self-discharging semitrailer

Info

Publication number: CN218228777U
Application number: CN202222570633.9U
Authority: CN
Inventors: 李阳垒
Original assignee: Shandong Zhongyu Special Purpose Vehicle Manufacturing Co ltd
Current assignee: Shandong Zhongyu Special Purpose Vehicle Manufacturing Co ltd
Priority date: 2022-09-27
Filing date: 2022-09-27
Publication date: 2023-01-06
Anticipated expiration: 2032-09-27

Abstract

The utility model relates to a self-discharging semitrailer technical field just discloses a self-discharging semitrailer back door elevating gear, including car hopper and door, door movable mounting has all seted up movable groove in the inside rear side of car hopper, the position that lateral wall rear corresponds the door about the car hopper, and the equal fixed mounting of lateral wall has the slider about the door, and two sliders are movable mounting respectively in the inside in two movable grooves, and the inside movable mounting in movable groove has rotatable regulating spindle, and the spacing groove has been seted up to the rear side wall face of slider. The utility model discloses in, the slider will drive the door rebound, can unload this moment, and pressure switch is installed to the inside top of activity groove simultaneously, and when the slider drove the door and moves the top, pressure switch will start stop gear, and stop gear will carry on spacingly to the slider, and then can carry on spacingly to the door to avoided when unloading that the door drops suddenly and leads to dangerous condition to take place.

Description

Back door lifting device of self-discharging semitrailer

Technical Field

The utility model relates to a self-discharging semitrailer technical field especially relates to a self-discharging semitrailer back door elevating gear.

Background

The semitrailer is a heavy transport vehicle, mainly transports bulky and difficult-to-disassemble large cargos, and often transports the cargos for long distances.

Through personal retrieval, patent number CN211892967U discloses a rear door lifting device of a self-discharging semitrailer, relating to the technical field of self-discharging semitrailers. Including trailer body, trailer hopper, linkage wire rope, overhead door, stop gear, first leading wheel and second leading wheel, stop gear installs on the trailer hopper, the overhead door is installed at the tail end of trailer hopper and is in stop gear, first leading wheel is installed the upper end the place ahead of trailer hopper, the second leading wheel is installed the upper end rear of trailer hopper, be equipped with the wire rope fixed block on the trailer body, linkage wire rope's one end is fixed on the wire rope fixed block, the bottom of overhead door is equipped with the hoisting block, linkage wire rope's the other end is fixed on the hoisting block.

The semitrailer carries out the in-process of automatic discharge and need open the back door of semitrailer through the manual work, and the manual work is opened comparatively danger, appears the condition that the door drops suddenly easily, threatens personal and property safety.

SUMMERY OF THE UTILITY MODEL

The utility model discloses solve the technical problem that above-mentioned prior art exists, consequently, provide a self-discharging semitrailer back door elevating gear.

In order to realize the above-mentioned purpose, the utility model discloses a following technical scheme, a self-discharging semitrailer back door elevating gear, including car hopper and door, door movable mounting is in the inside rear side of car hopper, the movable groove has all been seted up to the position that the lateral wall rear corresponds the door about the car hopper, the equal fixed mounting of lateral wall has the slider about the door, two sliders are movable mounting respectively in the inside of two movable grooves, the equal movable mounting in inside of two movable grooves has rotatable regulating spindle, the spacing groove has been seted up to the rear wall face of slider, the rear wall face left side fixed mounting of car hopper has the mounting box, the intercommunication groove has been seted up to the position that the rear wall face of car hopper corresponds the mounting box, the intercommunication groove makes the inside of movable groove and mounting box communicate each other, be provided with stop gear on the mounting box, stop gear is including driving motor, pivot and gag lever post.

Preferably, driving motor inlays and installs on the mounting box, and pivot fixed mounting is on driving motor's output, and gag lever post movable mounting is in the inside of intercommunication groove, the size of gag lever post and the big or small looks adaptation in spacing groove.

Preferably, the pivot has run through the lateral wall of gag lever post, threaded connection between pivot and the gag lever post, and the inside top fixed mounting in activity groove has pressure switch, electric connection between pressure switch and the driving motor.

Preferably, the adjusting shaft penetrates through the upper wall surface and the lower wall surface of the sliding block in the axial direction, and the sliding block of the adjusting shaft is in threaded connection.

Preferably, a displacement groove is formed in the limiting rod, a limiting ring is fixedly mounted on the front side of the rotating shaft, and the limiting ring is located in the limiting rod and is matched with the limiting rod in size.

Preferably, a driving shaft connected with an external driving device is movably mounted inside the hopper, a transmission toothed block is fixedly mounted on the driving shaft, a driven toothed block is fixedly mounted at the bottom of the adjusting shaft corresponding to the position of the transmission toothed block, and the driven toothed block and the transmission toothed block are meshed with each other.

Advantageous effects

The utility model provides a self-discharging semitrailer back door elevating gear. The method has the following beneficial effects:

(1) This self-discharging semitrailer back door elevating gear, it is rotatory that the drive shaft passes through the driven tooth piece of transmission drive, driven tooth piece is then and makes the regulating spindle rotatory, the rotation of regulating spindle makes the slider in the inside activity of activity groove, the slider will drive door rebound, can unload this moment, pressure switch is installed to the inside top of activity groove simultaneously, when the slider drives the door and removes the top, pressure switch will start stop gear, stop gear will carry on spacingly to the slider, and then can carry on spacingly to the door, thereby avoided when unloading the door drop suddenly and lead to dangerous condition emergence.

(2) This self-discharging semitrailer back door elevating gear, the displacement groove has been seted up to the inside of gag lever post, installs the spacing ring in the pivot simultaneously, and when the gag lever post moved in the pivot, the spacing ring will remove in the inside in displacement groove to carry on spacingly to the gag lever post, avoided the gag lever post to take place from the condition that the pivot drops.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structure, proportion, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and the modification of any structure, the change of proportion relation or the adjustment of size all fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the purpose which can be achieved by the present invention.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a partial sectional view of the internal structure of the present invention;

fig. 3 is an enlarged view of a point a in fig. 2 according to the present invention.

Illustration of the drawings:

1. a car hopper; 2. a vehicle door; 3. a movable groove; 4. a slider; 5. an adjustment shaft; 6. a limiting groove; 7. a communicating groove; 8. mounting a box; 9. a drive motor; 10. a displacement groove; 11. a rotating shaft; 12. a limiting rod; 13. a limiting ring; 14. a pressure switch; 15. a drive shaft; 16. a transmission gear block; 17. a passive tooth mass.

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 efforts all belong to the protection scope of the present invention.

The embodiment is as follows: the utility model provides a self-discharging semitrailer back door elevating gear, as shown in fig. 1 to 3, including car hopper 1 and door 2, car hopper 1 is hollow rectangle structure, door 2 is the board of rectangle structure, door 2 movable mounting is at the inside rear side of car hopper 1, movable groove 3 has all been seted up to the position that the lateral wall rear corresponds door 2 about car hopper 1, movable groove 3 is the groove of rectangle structure, the equal fixed mounting of lateral wall has slider 4 about door 2, slider 4 is the rectangle structure, two slider 4 respectively movable mounting are in the inside of two movable grooves 3, the equal movable mounting in inside of two movable grooves 3 has rotatable regulating spindle 5, regulating spindle 5 is the cylindrical structure that has the screw thread, spacing groove 6 has been seted up to the back wall face of slider 4, spacing groove 6 is the groove of cylindrical structure, rear wall face left side fixed mounting has mounting box 8 of car hopper 1, mounting box 8 is hollow rectangle structure, the position that the back wall face of car hopper 1 corresponds mounting box 8 has seted up intercommunication groove 7, intercommunication groove 7 makes the inside of movable groove 3 and mounting box 8 communicate with each other, be provided with on the mounting box 8, be provided with limiting box 8, limiting mechanism is including stop mechanism 11 and motor actuating mechanism 12.

The adjusting shaft 5 upwards penetrates through the upper wall surface and the lower wall surface of the sliding block 4, and the adjusting shaft 5 is in threaded connection with the sliding block 4.

Driving motor 9 inlays and installs on mounting box 8, pivot 11 is cylindrical structure, 11 fixed mounting of pivot are on driving motor 9's output, gag lever post 12 movable mounting is in the inside of intercommunication groove 7, the big or small looks adaptation of gag lever post 12's size and spacing groove 6, pivot 11 has run through the lateral wall of gag lever post 12, threaded connection between pivot 11 and the gag lever post 12, movable groove 3's inside top fixed mounting has pressure switch 14, electric connection between pressure switch 14 and the driving motor 9.

Displacement groove 10 has been seted up to gag lever post 12's inside, and displacement groove 10 is the groove of cylindrical structure, and the front side fixed mounting of pivot 11 has spacing ring 13, and spacing ring 13 is the round annular structure, and spacing ring 13 is located inside and gag lever post 12 size looks adaptation of gag lever post 12.

A driving shaft 15 connected with an external driving device is movably arranged in the car hopper 1, a transmission gear block 16 is fixedly arranged on the driving shaft 15, a driven gear block 17 is fixedly arranged at the bottom of the adjusting shaft 5 corresponding to the position of the transmission gear block 16, and the driven gear block 17 is meshed with the transmission gear block 16.

The utility model discloses a theory of operation:

when unloading, drive shaft 15 drives driven tooth piece 17 rotation through transmission tooth piece 16, driven tooth piece 17 and then makes regulating shaft 5 rotatory, the rotation of regulating shaft 5 makes slider 4 in the inside activity of activity groove 3, slider 4 will drive door 2 rebound, can unload this moment, pressure switch 14 is installed to the inside top of activity groove 3 simultaneously, when slider 4 drives door 2 and removes the top, pressure switch 14 will start stop gear, stop gear will carry on spacingly to slider 4, and then can carry on spacingly to door 2, thereby avoided door 2 to drop suddenly when unloading and lead to dangerous condition to take place.

Pressure switch 14 starts driving motor 9, and driving motor 9 makes pivot 11 rotatory, and threaded connection between pivot 11 and the gag lever post 12, gag lever post 12 will be at the inside activity of intercommunication groove 7, and gag lever post 12 moves to the inside of spacing groove 6 from the inside of intercommunication groove 7, and then can carry on spacingly to slider 4.

Displacement groove 10 is seted up to gag lever post 12's inside, installs gag collar 13 in the pivot 11 simultaneously, and when gag lever post 12 moved in pivot 11, gag collar 13 will be at displacement groove 10's inside removal to spacing gag lever post 12 carries out spacingly, has avoided the circumstances that gag lever post 12 drops from pivot 11 to take place.

The foregoing shows and describes the basic principles and principal features of the invention, together with the advantages thereof. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a self-discharging semitrailer back door elevating gear, includes car hopper (1) and door (2), and door (2) movable mounting is in the inside rear side of car hopper (1), its characterized in that: activity groove (3) have all been seted up to the position that lateral wall rear corresponds door (2) about car hopper (1), the equal fixed mounting of lateral wall has slider (4) about car door (2), two sliders (4) movable mounting are respectively in the inside of two activity grooves (3), the equal movable mounting in inside of two activity grooves (3) has rotatable regulating spindle (5), spacing groove (6) have been seted up to the rear wall face of slider (4), rear wall face left side fixed mounting of car hopper (1) has mounting box (8), intercommunication groove (7) have been seted up to the position that the rear wall face of car hopper (1) corresponds mounting box (8), intercommunication groove (7) make the inside of activity groove (3) and mounting box (8) communicate each other, be provided with stop gear on mounting box (8), stop gear is including driving motor (9), pivot (11) and gag lever post (12).

2. The rear door lifting device of the dump semi-trailer according to claim 1, characterized in that: drive motor (9) are inlayed and are installed on mounting box (8), and pivot (11) fixed mounting is on the output of drive motor (9), and gag lever post (12) movable mounting is in the inside of intercommunication groove (7), the size of gag lever post (12) and the big or small looks adaptation of spacing groove (6).

3. The rear door lifting device of the dump semi-trailer according to claim 2, characterized in that: pivot (11) have run through the lateral wall of gag lever post (12), threaded connection between pivot (11) and gag lever post (12), and the inside top fixed mounting in activity groove (3) has pressure switch (14), electric connection between pressure switch (14) and driving motor (9).

4. The rear door lifting device of the dump semi-trailer according to claim 1, characterized in that: the adjusting shaft (5) upwards penetrates through the upper wall surface and the lower wall surface of the sliding block (4), and the adjusting shaft (5) is in threaded connection with the sliding block (4).

5. The rear door lifting device of the dump semi-trailer according to claim 3, characterized in that: the displacement groove (10) has been seted up to gag lever post (12) inside, and the front side fixed mounting of pivot (11) has spacing ring (13), and spacing ring (13) are located the inside of gag lever post (12) and gag lever post (12) size looks adaptation.

6. The rear door lifting device of the dump semi-trailer according to claim 1, characterized in that: the inside movable mounting of car hopper (1) has drive shaft (15) of being connected with external drive arrangement, and fixed mounting has transmission tooth piece (16) on drive shaft (15), and the bottom of regulating spindle (5) corresponds the fixed mounting in position of transmission tooth piece (16) has passive tooth piece (17), intermeshing between passive tooth piece (17) and transmission tooth piece (16).