CN112249114B - Non-bearing U-shaped tractor trailer self-locking mechanism - Google Patents
Non-bearing U-shaped tractor trailer self-locking mechanism Download PDFInfo
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- CN112249114B CN112249114B CN202011175375.3A CN202011175375A CN112249114B CN 112249114 B CN112249114 B CN 112249114B CN 202011175375 A CN202011175375 A CN 202011175375A CN 112249114 B CN112249114 B CN 112249114B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
- B62B3/02—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving parts being adjustable, collapsible, attachable, detachable or convertible
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B2205/00—Hand-propelled vehicles or sledges being foldable or dismountable when not in use
- B62B2205/006—Hand-propelled vehicles or sledges being foldable or dismountable when not in use dismountable
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B2205/00—Hand-propelled vehicles or sledges being foldable or dismountable when not in use
- B62B2205/20—Catches; Locking or releasing an articulation
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
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- Lock And Its Accessories (AREA)
Abstract
The invention discloses a non-bearing U-shaped traction trailer self-locking mechanism which comprises an L-shaped self-locking base, an L-shaped assembling plate, an assembling block, a rotating shaft, an unlocking self-locking clamping plate, two first spring seats, a first guide sleeve, a second guide sleeve, an unlocking self-locking clamping seat, an unlocking conduction shaft, a self-locking inner shaft, an unlocking conduction plate, two conduction top plates, two second spring seats, a reset tension spring, a pressure spring, an unlocking plate and an unlocking hole. The self-locking U-shaped car hopper has a self-locking function, can achieve the purpose of quickly disassembling and assembling the non-bearing U-shaped car hopper, and can effectively improve the working efficiency.
Description
Technical Field
The invention relates to the technical field of non-bearing U-shaped vehicles, in particular to a self-locking mechanism of a non-bearing U-shaped traction trailer.
Background
Logistics refers to the overall process of planning, implementing and managing raw materials, semi-finished products, finished products or related information from the production area of a commodity to the consumption area of the commodity in transportation, storage, distribution and other ways with the lowest cost and high efficiency in order to meet the needs of customers. Logistics is a system for controlling the movement of raw materials, finished products and information from supply to the end consumer via the transfer and possession of various intermediate links, thereby achieving the clear goal of organization. Modern logistics is a product of economic globalization and is also an important service industry for promoting economic globalization.
At present, the logistics industry is developed vigorously, wherein the logistics cart is widely applied, a non-bearing U-shaped vehicle is a common logistics cart, a hopper of the non-bearing U-shaped vehicle needs to be frequently disassembled and assembled in the using process, but the existing non-bearing U-shaped vehicle is inconvenient to disassemble and assemble when the hopper of the non-bearing U-shaped vehicle is disassembled and assembled, and the working efficiency is seriously affected.
Therefore, a self-locking mechanism of a non-bearing U-shaped towing trailer is provided to solve the problems.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a self-locking mechanism of a non-bearing U-shaped towing trailer, which has a self-locking function, can realize the purpose of quickly disassembling and assembling a non-bearing U-shaped car hopper, and can effectively improve the working efficiency so as to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
a non-load bearing U-tractor trailer self-locking mechanism comprising:
the locking device comprises an L-shaped self-locking base, wherein an L-shaped assembling plate is fixedly arranged on the outer side wall of the L-shaped self-locking base, an assembling block is fixedly arranged on the inner side wall of the L-shaped self-locking base, the top of the assembling block is hinged with an unlocking self-locking clamping plate through a rotating shaft, and two first spring seats are symmetrically arranged on two side edges of the assembling block;
the first guide sleeve penetrates through the assembly block, the side wall of the L-shaped self-locking base and the side wall of the L-shaped assembly plate in sequence and is fixedly installed on the assembly block, the side wall of the L-shaped self-locking base and the side wall of the L-shaped assembly plate;
the second guide sleeve is slidably mounted inside the first guide sleeve, an unlocking self-locking clamping seat is fixedly sleeved on the second guide sleeve, the unlocking self-locking clamping seat is positioned on one side, back to the L-shaped assembling plate, of the assembling block, and unlocking conducting shafts are fixedly mounted on the outer side surfaces of the two side walls of the unlocking self-locking clamping seat;
the self-locking inner shaft is slidably mounted inside the second guide sleeve, an unlocking conducting plate is fixedly mounted at one end of the self-locking inner shaft, the unlocking conducting plate is positioned on one side, back to the assembly block, of the unlocking self-locking clamping seat, two conducting top plates are symmetrically and integrally arranged on one side, facing the unlocking self-locking clamping seat, of the unlocking conducting plate close to the upper edge of the unlocking self-locking clamping seat, two second spring seats are symmetrically and integrally arranged on one side, facing the unlocking self-locking clamping seat, of the unlocking conducting plate close to the bottom edge of the unlocking self-locking clamping seat, one ends, far away from the unlocking conducting plate, of the two conducting top plates are abutted against the bottom of the unlocking self-locking clamping plate, one ends, far away from the unlocking conducting plate, of the two conducting top plates are higher than the top of the unlocking self-locking clamping seat, and reset tension springs are mounted between the second spring seats and the first spring seats on the same side, a pressure spring is further sleeved on the self-locking inner shaft, one end of the pressure spring is abutted against the unlocking conduction plate, and the other end of the pressure spring is abutted against the second guide sleeve;
the unlocking plate is a gantry unlocking plate, unlocking holes are reserved in two side walls of the unlocking plate, the unlocking conduction shaft is located inside the unlocking holes, and when the unlocking plate vertically moves upwards, the unlocking conduction shaft horizontally moves back to the assembling block under the action of the unlocking holes to achieve the purpose of unlocking and self-locking.
By adopting the technical scheme, the designed non-bearing U-shaped traction trailer self-locking mechanism consists of an L-shaped self-locking base, an L-shaped assembling plate, an assembling block, a rotating shaft, an unlocking self-locking clamping plate, two first spring seats, a first guide sleeve, a second guide sleeve, an unlocking self-locking clamping seat, an unlocking conduction shaft, a self-locking inner shaft, an unlocking conduction plate, two conduction top plates, two second spring seats, a reset tension spring, a pressure spring, an unlocking plate and an unlocking hole, wherein when the non-bearing U-shaped traction trailer self-locking mechanism is used, the unlocking plate is vertically moved upwards, the unlocking conduction shaft is horizontally moved back to the assembling block under the action of the unlocking hole, the unlocking conduction shaft drives the unlocking self-locking clamping seat, the unlocking conduction plate and the two conduction top plates to move back to the assembling block, the unlocking self-locking clamping plate is abutted against the unlocking self-locking clamping seat after moving for a certain distance, the unlocking plate is stopped to vertically move upwards, and the unlocking self-locking clamping seat is locked by the unlocking self-locking clamping plate, at the moment, the unlocking self-locking clamping seat supports the unlocking conducting plate, the unlocking conducting plate drives the self-locking inner shaft to retract into the inside of the second guide sleeve, meanwhile, the second guide sleeve is pulled out of the inside of the first guide sleeve, the unlocking purpose is achieved, when the unlocking plate continues to move vertically upwards, the two conducting top plates jack up the unlocking self-locking clamping plate, at the moment, the unlocking self-locking clamping plate is separated from the unlocking self-locking clamping seat, the unlocking self-locking clamping seat drives the second guide sleeve to extend into the inside of the first guide sleeve under the action of the pressure spring, meanwhile, the self-locking inner shaft penetrates through the second guide sleeve and extends to the outside of the first guide sleeve under the action of the reset tension spring, the locking purpose is achieved, the purpose of rapidly disassembling and installing the non-bearing U-shaped car hopper can be achieved through the non-bearing U-shaped traction trailer self-locking mechanism, and the working efficiency can be effectively improved.
Furthermore, the top of the unlocking plate is fixedly provided with a connecting seat, the upper part of the connecting seat is hinged with a vertical plate through a turnbuckle, the vertical plate is hinged on the inner side wall of the non-bearing U-shaped vehicle body through a hinged shaft, and the upper end of the vertical plate is fixedly provided with a transverse plate.
Through adopting above-mentioned technical scheme, can rotate the bottom up motion of diaphragm drive riser, recycle the bottom of riser and drive turn buckle upward movement, thereby turn buckle drives connecting seat upward movement drive unlocking plate rebound.
Furthermore, the upper portion of diaphragm aligns its both ends fixed mounting and has two handles, two the handle is about the riser symmetry sets up, and two the outside of handle all is overlapped and is equipped with the rubber sleeve.
Through adopting above-mentioned technical scheme, can utilize two handles to rotate the diaphragm for diaphragm pivoted operation is more convenient, all overlaps in the outside of handle and is equipped with the rubber sleeve, makes the feel of handle better.
Furthermore, a vertically arranged guide rail is fixedly mounted on the outer side surface of the connecting seat, a guide block matched with the guide rail is fixedly mounted on the inner side wall of the non-bearing U-shaped vehicle body, and the guide block is slidably connected with the guide rail.
Through adopting above-mentioned technical scheme, utilize guide block and direction guide rail to cooperate and can guarantee that the unlocking plate can upwards remove vertically to make this non-performance that bears U type traction trailer self-locking mechanism is more stable.
Furthermore, an assembly groove is further formed in the end portion, far away from the unlocking conducting plate, of the end portion of the self-locking inner shaft, and a guide roller is rotatably mounted inside the assembly groove through a rotating shaft.
By adopting the technical scheme, the sliding friction between one end of the self-locking inner shaft, which is far away from the unlocking conduction plate, and the locked car hopper can be converted into rolling friction by utilizing the guide rollers, so that the abrasion of the self-locking inner shaft can be effectively reduced, and the service life of the self-locking inner shaft is prolonged.
Further, the rotation axis passes through the torsional spring to be installed the top of assembling the piece, the bottom of unblock auto-lock screens board is in all the time with two under the torsional spring effect conduction top plate is kept away from the one end of unblock conduction board is inconsistent.
Through adopting above-mentioned technical scheme, can prevent that two conduction top sheets from breaking away from unblock conduction board, avoid two conduction top sheets in case break away from unblock conduction board and lead to the phenomenon of unblock auto-lock screens board supporting two conduction top sheets completely to take place, like this the axle can't stretch out in the auto-lock, and then make this non-bear the weight of the unable function that realizes the auto-lock of U type trailer self-locking mechanism.
Further, the length of the self-locking inner shaft is greater than that of the first guide sleeve, and the length of the self-locking inner shaft is greater than that of the second guide sleeve.
Through adopting above-mentioned technical scheme, can guarantee that the interior axle of auto-lock can stretch the outside of first uide bushing and second uide bushing, guarantee that the interior axle of auto-lock can be locked by the locking hopper.
Further, the surface roughness of the self-locking inner shaft, the surface roughness of the first guide sleeve and the surface roughness of the second guide sleeve are not more than Ra0.2.
By adopting the technical scheme, the surface of the self-locking inner shaft, the surface of the first guide sleeve and the surface of the second guide sleeve are smooth, the abrasion of the self-locking inner shaft, the first guide sleeve and the second guide sleeve can be effectively reduced, and the service life of the self-locking mechanism of the non-bearing U-shaped traction trailer is prolonged.
In summary, the invention mainly has the following beneficial effects:
the designed self-locking mechanism of the non-bearing U-shaped traction trailer comprises an L-shaped self-locking base, an L-shaped assembling plate, an assembling block, a rotating shaft, an unlocking self-locking clamping plate, two first spring seats, a first guide sleeve, a second guide sleeve, an unlocking self-locking clamping seat, an unlocking conduction shaft, a self-locking inner shaft, an unlocking conduction plate, two conduction top plates, two second spring seats, a reset tension spring, a pressure spring, an unlocking plate and an unlocking hole.
Drawings
FIG. 1 is a schematic structural view of a self-locking mechanism of a non-load-bearing U-shaped towing trailer according to an embodiment;
FIG. 2 is a schematic view of the structure taken along line A-A in FIG. 1;
FIG. 3 is a schematic view of the structure taken along line B-B in FIG. 2;
FIG. 4 is a side view and cut-away schematic view of one embodiment of a non-load bearing U-trailer self-locking mechanism;
FIG. 5 is an exploded view of one embodiment of a self-locking mechanism for a non-load bearing U-trailer;
FIG. 6 is a schematic view of one embodiment of a non-load bearing U-shaped tractor trailer self-locking mechanism when mounted on a non-load bearing U-shaped vehicle;
FIG. 7 is a schematic view of the structure of FIG. 6 from another perspective;
fig. 8 is a partially enlarged schematic view of fig. 7.
In the figure: 1. an L-shaped self-locking base; 2. an L-shaped mounting plate; 3. an unlocking plate; 4. a connecting seat; 5. a pressure spring; 6. a return tension spring; 7. assembling the groove; 8. self-locking the inner shaft; 9. a first guide sleeve; 10. unlocking the transmission shaft; 11. a conductive topsheet; 12. unlocking the conduction plate; 13. a second spring seat; 14. a first spring seat; 15. a rotating shaft; 16. unlocking the self-locking clamping plate; 17. a guide rail; 18. unlocking the hole; 19. unlocking the self-locking clamping seat; 20. assembling the block; 21. a second guide sleeve; 22. hinging a shaft; 23. a rotating shaft; 24. a guide roller; 25. a transverse plate; 26. a handle; 27. a non-load bearing U-shaped vehicle body; 28. a traveling guide rail; 29. a guide block; 30. a turnbuckle; 31. a vertical plate.
Detailed Description
The present invention is described in further detail below with reference to figures 1-8.
Example 1
A non-bearing U-shaped tractor trailer self-locking mechanism is shown in figures 1-5 and comprises an L-shaped self-locking base 1, a first guide sleeve 9, a second guide sleeve 21, a self-locking inner shaft 8 and an unlocking plate 3, wherein an L-shaped assembling plate 2 is fixedly arranged on the outer side wall of the L-shaped self-locking base 1, an assembling block 20 is fixedly arranged on the inner side wall of the L-shaped self-locking base 1, the top of the assembling block 20 is hinged with an unlocking self-locking clamping plate 16 through a rotating shaft 15, and two first spring seats 14 are symmetrically arranged on two side edges of the assembling block 20;
as shown in fig. 2-5, the first guide sleeve 9 is sequentially and fixedly installed on the assembling block 20, the side wall of the L-shaped self-locking base 1 and the side wall of the L-shaped assembling plate 2;
as shown in fig. 2-5, the second guide sleeve 21 is slidably mounted inside the first guide sleeve 9, and the second guide sleeve 21 is fixedly sleeved with an unlocking self-locking clamping seat 19, the unlocking self-locking clamping seat 19 is located on one side of the assembling block 20 back to the L-shaped assembling plate 2, and the unlocking conductive shafts 10 are fixedly mounted on the outer side surfaces of the two side walls of the unlocking self-locking clamping seat 19;
as shown in fig. 2-5, the self-locking inner shaft 8 is slidably mounted inside the second guide sleeve 21, and one end of the self-locking inner shaft 8 is fixedly mounted with an unlocking conductive plate 12, the unlocking conductive plate 12 is located on one side of the unlocking self-locking retaining seat 19 opposite to the assembling block 20, two conductive top plates 11 are symmetrically and integrally arranged on one side of the unlocking conductive plate 12 facing the unlocking self-locking retaining seat 19 and close to the upper edge thereof, two second spring seats 13 are symmetrically and integrally arranged on one side of the unlocking conductive plate 12 facing the unlocking self-locking retaining seat 19 and close to the bottom edge thereof, one ends of the two conductive top plates 11 far away from the unlocking conductive plate 12 are abutted against the bottom of the unlocking self-locking retaining plate 16, one ends of the two conductive top plates 11 far away from the unlocking conductive plate 12 are higher than the top of the unlocking self-locking retaining seat 19, and a return tension spring 6 is mounted between the second spring seat 13 and the first spring seat, a pressure spring 5 is further sleeved on the self-locking inner shaft 8, one end of the pressure spring 5 is abutted against the unlocking conduction plate 12, and the other end of the pressure spring 5 is abutted against the second guide sleeve 21;
as shown in fig. 2 to 5, the unlocking plate 3 is a gantry unlocking plate, two side walls of the unlocking plate 3 are respectively provided with an unlocking hole 18, the unlocking conductive shaft 10 is located inside the unlocking hole 18, and when the unlocking plate 3 moves vertically and upwardly, the unlocking conductive shaft 10 horizontally moves back to the assembling block 20 under the action of the unlocking hole 18 to complete the purpose of unlocking and self-locking.
In the technical scheme, the designed non-bearing U-shaped traction trailer self-locking mechanism consists of an L-shaped self-locking base 1, an L-shaped assembling plate 2, a assembling block 20, a rotating shaft 15, an unlocking self-locking clamping plate 16, two first spring seats 14, a first guide sleeve 9, a second guide sleeve 21, an unlocking self-locking clamping seat 19, an unlocking conduction shaft 10, a self-locking inner shaft 8, an unlocking conduction plate 12, two conduction top sheets 11, two second spring seats 13, a reset tension spring 6, a pressure spring 5, an unlocking plate 3 and an unlocking hole 18, when the non-bearing U-shaped traction trailer self-locking mechanism is used, the unlocking plate 3 is vertically moved upwards, the unlocking conduction shaft 10 horizontally moves back to the assembling block 20 under the action of the unlocking hole 18, the unlocking conduction shaft 10 drives the unlocking self-locking clamping seat 19, the unlocking conduction plate 12 and the two conduction top sheets 11 to move back to the assembling block 20, the unlocking self-locking clamping plate 16 abuts against the unlocking self-locking clamping seat 19 after moving for a certain distance, at the moment, the unlocking plate 3 stops moving vertically upwards, the unlocking self-locking clamping plate 16 locks the unlocking self-locking clamping seat 19, the unlocking self-locking clamping seat 19 supports the unlocking conducting plate 12, the unlocking conducting plate 12 drives the self-locking inner shaft 8 to retract into the inside of the second guiding sleeve 21, the second guiding sleeve 21 is pulled out from the inside of the first guiding sleeve 9, the unlocking purpose is realized, when the unlocking plate 3 continues to move vertically upwards, the two conducting top sheets 11 jack the unlocking self-locking clamping plate 16, at the moment, the unlocking self-locking clamping plate 16 is separated from the unlocking self-locking clamping seat 19, the unlocking self-locking clamping seat 19 drives the second guiding sleeve 21 to extend into the inside of the first guiding sleeve 9 under the action of the pressure spring 5, and the self-locking inner shaft 8 passes through the second guiding sleeve 21 and extends to the outside of the first guiding sleeve 9 under the action of the reset tension spring 6, the locking purpose is realized, so that the non-bearing U-type traction self-locking trailer mechanism can realize the purposes of quickly disassembling and installing a non-bearing U-type trailer hopper, the working efficiency can be effectively improved.
Preferably, as shown in fig. 6-8, the top of the unlocking plate 3 is fixedly installed with the connecting seat 4, the upper portion of the connecting seat 4 is hinged with a vertical plate 31 through a turnbuckle 30, the vertical plate 31 is hinged on the inner side wall of the non-bearing U-shaped vehicle body 27 through a hinge shaft 22, and the upper end of the vertical plate 31 is fixedly installed with a horizontal plate 25, the horizontal plate 25 can be rotated to drive the bottom end of the vertical plate 31 to move upward, and then the bottom end of the vertical plate 31 is utilized to drive the turnbuckle 30 to move upward, and the turnbuckle 30 drives the connecting seat 4 to move upward so as to drive the unlocking plate 3 to move upward.
Preferably, as shown in fig. 8, the two handles 26 are fixedly installed at two ends of the upper portion of the horizontal plate 25 aligned with each other, the two handles 26 are symmetrically arranged with respect to the vertical plate 31, the rubber sleeves are sleeved on the outer portions of the two handles 26, the horizontal plate 25 can be rotated by using the two handles 26, the operation of rotating the horizontal plate 25 is more convenient, and the rubber sleeves are sleeved on the outer portions of the handles 26, so that the handle 26 has better hand feeling.
Preferably, as shown in fig. 7, a vertically arranged guide rail 17 is further fixedly mounted on the outer side surface of the connecting seat 4, a guide block 29 matched with the guide rail 17 is further fixedly mounted on the inner side wall of the non-load-bearing U-shaped trailer body 27, the guide block 29 is further slidably connected with the guide rail 17, and the unlocking plate 3 can be ensured to vertically move upwards by utilizing the matching of the guide block 29 and the guide rail 17, so that the performance of the non-load-bearing U-shaped traction self-locking trailer mechanism is relatively stable.
Preferably, as shown in fig. 5, an end portion of the self-locking inner shaft 8, which is away from the unlocking conducting plate 12, is further provided with an assembling groove 7, a guide roller 24 is rotatably mounted inside the assembling groove 7 through a rotating shaft 23, and sliding friction between one end of the self-locking inner shaft 8, which is away from the unlocking conducting plate 12, and the locked car hopper can be converted into rolling friction by using the guide roller 24, so that abrasion of the self-locking inner shaft 8 can be effectively reduced, and thus the service life of the self-locking inner shaft 8 is prolonged.
Preferably, as shown in fig. 5, the rotating shaft 15 is installed at the top of the assembling block 20 through a torsion spring, the bottom of the unlocking self-locking position-locking plate 16 is always abutted against one end of the two conductive top sheets 11 far away from the unlocking conductive plate 12 under the action of the torsion spring, so as to prevent the two conductive top sheets 11 from being separated from the unlocking conductive plate 12, and prevent the two conductive top sheets 11 from being separated from the unlocking conductive plate 12 once the unlocking self-locking position-locking plate 16 completely supports the two conductive top sheets 11, so that the inner shaft 8 cannot be extended in the self-locking manner, and further the self-locking function of the non-load-bearing U-shaped towing trailer self-locking mechanism cannot be realized.
Preferably, as shown in fig. 5, the length of the self-locking inner shaft 8 is greater than that of the first guide sleeve 9, and the length of the self-locking inner shaft 8 is greater than that of the second guide sleeve 21, so that the self-locking inner shaft 8 can be ensured to extend to the outside of the first guide sleeve 9 and the second guide sleeve 21, and the self-locking inner shaft 8 can be ensured to be locked by the locked hopper.
Preferably, the surface roughness of the self-locking inner shaft 8, the surface roughness of the first guide sleeve 9 and the surface roughness of the second guide sleeve 21 are not greater than ra0.2, so that the surface of the self-locking inner shaft 8, the surface of the first guide sleeve 9 and the surface of the second guide sleeve 21 are smooth, the abrasion of the self-locking inner shaft 8, the first guide sleeve 9 and the second guide sleeve 21 can be effectively reduced, and the service life of the self-locking mechanism of the non-load-bearing U-shaped towing trailer is prolonged.
It should be noted that the non-load-bearing U-shaped tractor trailer self-locking mechanism is installed at the connection position of the non-load-bearing U-shaped vehicle body 27 and the walking guide rail 28 (as shown in fig. 6) and is used for the purpose of locking the non-load-bearing U-shaped vehicle hopper.
Example 2
The difference from the embodiment 1 is that the surface of the L-shaped self-locking base 1 is further provided with a protective layer, and the protective layer is prepared by the following method:
weighing the following raw materials in parts by weight: 20-25 parts of epoxy resin, 6-8 parts of calcium carbonate powder, 8-12 parts of copper oxide powder, 12-16 parts of phenolic resin, 8-12 parts of mica powder, 6-10 parts of inositol hexaphosphate, 8-12 parts of iron oxide red, 8-12 parts of aluminum powder, 2-4 parts of alcohol ester, 2-4 parts of triethanolamine, 1-3 parts of emulsified silicone oil and 30-50 parts of water;
s1, adding weighed phytic acid ester, alcohol ester dodeca, triethanolamine, emulsified silicone oil and water into a stirrer, and stirring for 20-30min at the stirring speed of 600-;
s2, adding epoxy resin, calcium carbonate powder, copper oxide powder, phenolic resin, mica powder, iron oxide red and aluminum powder into a pulverizer to pulverize until the particle diameter of the materials is not more than 500nm, and preparing mixed powder materials;
s3, adding the mixed solution prepared in the step S1 and the mixed powder material prepared in the step S2 into a reaction kettle, stirring for 20-30min, setting the stirring speed of the reaction kettle to be 700-900r/min and the temperature to be 80-100 ℃, and thus obtaining the protective coating;
s4, cleaning the surface of the L-shaped self-locking base 1, drying the surface by using a hot air blower, and uniformly spraying the protective coating prepared in the step S3 on the surface of the dried L-shaped self-locking base 1 by using a high-pressure sprayer spray gun;
s5, drying the L-shaped self-locking base 1 sprayed with the protective coating in the step S4 in a drying chamber at the drying temperature of 140 ℃ and 160 ℃ for 30-40min, namely preparing the protective layer on the surface of the L-shaped self-locking base 1.
The L-shaped self-locking base 1 (it should be noted that the L-shaped self-locking base 1 is made of iron) in example 1-2 was tested in the same salt spray test in the laboratory under the same conditions, and the L-shaped self-locking base 1 in example 1-2 was placed in the same salt spray test machine for the following test results:
| examples | Test results |
| Example 1 | After five hours, a great deal of rust is generated on the surface of the L-shaped self-locking |
| Example 2 | After five hours, no rust appears on the surface of the L-shaped self-locking |
The embodiment 2 is the optimal embodiment according to comparative analysis of the test results in the above table, by adopting the above technical scheme, the process for preparing the protective coating is simple in steps and easy to implement, the prepared protective coating is moderate in viscosity, not easy to layer, convenient to spray, free of bubble generation, fully combined in components and good in comprehensive performance, the protective coating can form a good coating after spraying, cracks are not easy to generate, the film forming effect is good, the prepared protective layer has good rust-proof and ageing-resistant performances, good in adhesiveness and not easy to fall off, the rust-proof and ageing-resistant performances of the L-shaped self-locking base 1 can be effectively improved, and the service life of the self-locking mechanism of the non-bearing U-shaped traction trailer is long.
The working principle is as follows: when the non-bearing U-shaped traction trailer self-locking mechanism is used, the transverse plate 25 is rotated by the two handles 26, the transverse plate 25 is rotated to drive the bottom end of the vertical plate 31 to move upwards, the bottom end of the vertical plate 31 is utilized to drive the turnbuckle 30 to move upwards, the turnbuckle 30 drives the connecting seat 4 to move upwards so as to drive the unlocking plate 3 to move upwards, the unlocking plate 3 can be ensured to move vertically upwards by matching the guide block 29 with the guide rail 17, under the condition that the unlocking plate 3 moves vertically upwards, the unlocking conduction shaft 10 horizontally moves back to the assembling block 20 under the action of the unlocking hole 18, the unlocking conduction shaft 10 drives the unlocking self-locking clamping seat 19, the unlocking conduction plate 12 and the two conduction top plates 11 to move back to the assembling block 20, the unlocking self-locking clamping plate 16 abuts against the unlocking self-locking clamping seat 19 after moving for a certain distance, at the moment, the unlocking plate 3 stops moving vertically upwards, the unlocking self-locking clamping plate 16 locks the unlocking self-locking clamping seat 19, the unlocking self-locking clamping seat 19 props against the unlocking conducting plate 12 at the moment, the unlocking conducting plate 12 drives the self-locking inner shaft 8 to retract into the inside of the second guide sleeve 21, the second guide sleeve 21 is pulled out from the inside of the first guide sleeve 9 at the same time, the unlocking purpose is realized, when the unlocking plate 3 is continuously moved vertically upwards, the two conducting top sheets 11 jack the unlocking self-locking clamping plate 16, at the moment, the unlocking self-locking clamping plate 16 is separated from the unlocking self-locking clamping seat 19, the unlocking self-locking clamping seat 19 drives the second guide sleeve 21 to extend into the inside of the first guide sleeve 9 under the action of the pressure spring 5, at the moment, when the two handles 26 are loosened, the self-locking inner shaft 8 passes through the second guide sleeve 21 and extends to the outside of the first guide sleeve 9 under the action of the reset tension spring 6, and one end of the self-locking inner shaft 8 with the guide roller 24 is inserted into a jack on the non-bearing U-type car hopper, the purpose of locking the non-bearing U-shaped vehicle hopper is achieved.
The parts not involved in the present invention are the same as or can be implemented by the prior art. The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (8)
1. The utility model provides a non-bear U type trailer self-locking mechanism that pulls which characterized in that includes:
the automatic unlocking device comprises an L-shaped self-locking base (1), wherein an L-shaped assembling plate (2) is fixedly installed on the outer side wall of the L-shaped self-locking base (1), an assembling block (20) is fixedly installed on the inner side wall of the L-shaped self-locking base (1), the top of the assembling block (20) is hinged to an unlocking self-locking clamping plate (16) through a rotating shaft (15), and two first spring seats (14) are symmetrically installed on two side edges of the assembling block (20);
the first guide sleeve (9) is sequentially communicated with and fixedly installed on the assembly block (20), the side wall of the L-shaped self-locking base (1) and the side wall of the L-shaped assembly plate (2);
the second guide sleeve (21) is slidably mounted inside the first guide sleeve (9), an unlocking self-locking clamping seat (19) is fixedly sleeved on the second guide sleeve (21), the unlocking self-locking clamping seat (19) is positioned on one side, back to the L-shaped assembling plate (2), of the assembling block (20), and unlocking conducting shafts (10) are fixedly mounted on the outer side surfaces of the two side walls of the unlocking self-locking clamping seat (19);
interior axle (8) of auto-lock, interior axle (8) slidable mounting of auto-lock is in the inside of second uide bushing (21), just the one end fixed mounting of interior axle (8) of auto-lock has unblock conduction board (12), unblock conduction board (12) are located unblock auto-lock screens seat (19) dorsad one side of outfit piece (20), unblock conduction board (12) orientation be close to its upper portion edge symmetry on the side of unblock auto-lock screens seat (19) and be equipped with two conduction top plates (11), just unblock conduction board (12) orientation be close to its bottom edge symmetry on the side of unblock auto-lock screens seat (19) and be equipped with two second spring seats (13), two conduction top plate (11) are kept away from the one end of unblock conduction board (12) with the bottom of unblock auto-lock screens board (16) is mutually integrative, and two conduction top plate (11) are kept away from the one end of unblock conduction board (12) is higher than conflict auto-lock screens A reset tension spring (6) is arranged between the second spring seat (13) and the first spring seat (14) which are positioned on the same side of the top of the seat (19), a compression spring (5) is sleeved on the self-locking inner shaft (8), one end of the compression spring (5) is abutted against the unlocking conduction plate (12), and the other end of the compression spring (5) is abutted against the second guide sleeve (21);
the unlocking device comprises an unlocking plate (3), wherein the unlocking plate (3) is a gantry-shaped unlocking plate, unlocking holes (18) are reserved in two side walls of the unlocking plate (3), an unlocking conduction shaft (10) is located in the unlocking holes (18), and when the unlocking plate (3) vertically moves upwards, the unlocking conduction shaft (10) horizontally moves back to the assembling block (20) under the action of the unlocking holes (18) to achieve the purpose of unlocking and self-locking.
2. The self-locking mechanism of the non-load-bearing U-shaped towing trailer according to claim 1, wherein: the top of the unlocking plate (3) is fixedly provided with a connecting seat (4), the upper part of the connecting seat (4) is hinged with a vertical plate (31) through a turnbuckle (30), the vertical plate (31) is hinged on the inner side wall of the non-bearing U-shaped vehicle body (27) through a hinge shaft (22), and the upper end of the vertical plate (31) is fixedly provided with a transverse plate (25).
3. The self-locking mechanism of the non-load-bearing U-shaped towing trailer according to claim 2, wherein: the upper portion of diaphragm (25) aligns its both ends fixed mounting has two handles (26), two handle (26) are about riser (31) symmetry sets up, and two the outside of handle (26) all is equipped with the rubber sleeve.
4. The self-locking mechanism of the non-load-bearing U-shaped towing trailer according to claim 2, wherein: still fixed mounting has vertical setting guide rail (17) on the lateral surface of connecting seat (4), still fixed mounting have with on the inside wall of non-bearing U type automobile body (27) guide rail (17) matched with guide block (29), guide block (29) still with guide rail (17) sliding connection.
5. The self-locking mechanism of the non-load-bearing U-shaped towing trailer according to claim 1, wherein: an assembling groove (7) is further formed in the end portion, far away from the unlocking conducting plate (12), of the self-locking inner shaft (8), and a guide roller (24) is rotatably mounted inside the assembling groove (7) through a rotating shaft (23).
6. The self-locking mechanism of the non-load-bearing U-shaped towing trailer according to claim 1, wherein: the rotation axis (15) are installed through the torsional spring the top of assembling piece (20), the bottom of unblock auto-lock screens board (16) is in under the torsional spring effect all the time with two conduction top piece (11) are kept away from the one end of unblock conduction board (12) is inconsistent.
7. The self-locking mechanism of the non-load-bearing U-shaped towing trailer according to claim 1, wherein: the length of the self-locking inner shaft (8) is greater than that of the first guide sleeve (9), and the length of the self-locking inner shaft (8) is greater than that of the second guide sleeve (21).
8. The self-locking mechanism of the non-load-bearing U-shaped towing trailer according to claim 1, wherein: the surface roughness of the self-locking inner shaft (8), the surface roughness of the first guide sleeve (9) and the surface roughness of the second guide sleeve (21) are not more than Ra0.2.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011175375.3A CN112249114B (en) | 2020-10-28 | 2020-10-28 | Non-bearing U-shaped tractor trailer self-locking mechanism |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011175375.3A CN112249114B (en) | 2020-10-28 | 2020-10-28 | Non-bearing U-shaped tractor trailer self-locking mechanism |
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| CN112249114A CN112249114A (en) | 2021-01-22 |
| CN112249114B true CN112249114B (en) | 2021-07-30 |
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| CN202011175375.3A Active CN112249114B (en) | 2020-10-28 | 2020-10-28 | Non-bearing U-shaped tractor trailer self-locking mechanism |
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| RU94002923A (en) * | 1994-01-25 | 1996-04-10 | А.А. Котенко | Locking device |
| DE19820942A1 (en) * | 1997-08-21 | 1999-03-04 | Corvin Heinze | Flat bed trolley |
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|---|---|
| CN112249114A (en) | 2021-01-22 |
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