Detachable turnover stand column with self-locking device

Abstract

A detachable overturning stand column with a self-locking device comprises a stand column welding piece, a self-locking fixing assembly, a stand column limiting base and a stand column stop block. A rotating pin shaft is arranged at the bottom of the stand column welding piece, the stand column welding piece is rotationally connected with the self-locking fixing assembly through the rotating pin shaft, and a positioning hole is further formed in the stand column welding piece. The self-locking fixing assembly is connected to the edge beam and used for supporting and locking the rotating pin shaft so that the stand column welding piece can be self-locked. The stand column limiting bases are connected to the edge beams and are correspondingly connected with the positioning holes in a clamped mode. The stand column check blocks are correspondingly connected to the stand column limiting bases in an inserted mode and used for fixedly connecting the stand column welding pieces and the stand column limiting bases. Compared with an existing overturning stand column, the overturning stand column is more convenient to disassemble and assemble, saves time and labor, has a self-locking function after being installed, and is more practical, simple in structural design and convenient to maintain and replace.

Description

Technical Field

[0001] The utility model relates to the technical field of semi-trailers, and specifically, to a detachable flip column with a self-locking device. Background Art

[0002] At present, the columns of side-dumping semi-trailers in the market generally adopt a plug-and-play structure, which is convenient for loading and unloading goods. However, this kind of plug-and-play column needs to open holes in the side beam, damaging the integrity of the side beam, and requires manual operation to plug and unplug the column in the carriage, with high labor intensity, time-consuming and laborious, and complex operation; moreover, the plug-and-play column is movable and often moves upward during vehicle transportation, resulting in the phenomenon of column detachment.

[0003] Although there are also flip columns on the market, most of the pin shafts around which the flip columns rotate are fixed, the flip columns are not detachable, or the pin shafts around which they rotate are difficult to disassemble and assemble, resulting in time-consuming and laborious disassembly and assembly of the columns, and inconvenient maintenance and replacement.

[0004] In order to solve the above problems, people have been seeking an ideal technical solution. Summary of the Invention

[0005] The purpose of the utility model is to overcome the deficiencies of the prior art, and thus provide a detachable flip column with a self-locking device. Compared with the existing flip columns, the utility model is more convenient for disassembly and assembly, time-saving and laborious, and has a self-locking function after installation, is more practical, has a simple structural design, and is convenient for maintenance and replacement.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is: a detachable flip column with a self-locking device, including a column welded assembly, a self-locking fixing component, a column limiting seat and a column stop block;

[0007] A rotating pin shaft is arranged at the bottom of the column welded assembly, and the column welded assembly is rotatably connected to the self-locking fixing component through the rotating pin shaft. The column welded assembly is also provided with a positioning hole;

[0008] The self-locking fixing component is connected to the side beam and is used to support and lock the rotating pin shaft to make the column welded assembly self-lock;

[0009] The column limiting seat is connected to the side beam and is correspondingly clamped with the positioning hole;

[0010] The column stop block is correspondingly inserted on the column limiting seat and is used to fixedly connect the column welded assembly and the column limiting seat.

[0011] Based on the above, the column welded assembly includes a column body and a turning plate. The column body is a U-shaped box structure that is transparent from top to bottom and has an open side facing inwards. The turning plate is a U-shaped box structure that is transparent from top to bottom and has an open side facing outwards. An inner sealing plate is welded at the inner port of the column body. The upper side of the outer surface of the inner side plate of the turning plate is welded to the lower side of the outer surface of the outer side plate of the column body. The positioning hole is opened in the middle lower part of the inner side plate of the turning plate and is lower than the lower end of the column body. The rotating pin shaft is fixedly arranged at the lower side edge between the left and right side plates of the turning plate and is lower than the positioning hole. The left end of the rotating pin shaft passes through the left side plate of the turning plate to the left, and the right end of the rotating pin shaft passes through the right side plate of the turning plate to the right. Upper and lower parts of the outer circumference of both ends of the rotating pin shaft are provided with fan-shaped grooves, and the groove bottom surface of the fan-shaped groove is perpendicular to the column body.

[0012] Based on the above, the self-locking fixing assembly includes two self-locking fixing plates. The two self-locking fixing plates are welded to the side beam at left and right intervals. The lower side edge of the self-locking fixing plate is lower than the bottom of the side beam. A slideway groove is opened on the self-locking fixing plate. The upper end of the slideway groove is opened on the outer side edge of the self-locking fixing plate. The lower end of the slideway groove extends to the middle lower part of the self-locking fixing plate and is provided with a circular groove. The circular groove is lower than the bottom of the side beam. The distance from the circular groove to the top of the side beam is equal to the distance from the rotating pin shaft to the lower end of the column body. The upper section of the slideway groove is arc-shaped and extends downwards. The lower section of the slideway groove is a vertical section. The width of the slideway groove is smaller than the inner diameter of the circular groove. The width of the slideway groove is greater than or equal to the narrower dimension of the rotating shaft in the cross-section at the fan-shaped groove and smaller than the diameter of the rotating shaft. The diameter of the rotating shaft is less than or equal to the inner diameter of the circular groove.

[0013] Based on the above, the column limit seat is welded to the side beam and is located in the middle upper part between the two self-locking fixing plates. A U-shaped slot that is transparent from top to bottom and has an inner open side is opened on the column limit seat. The distance from the column limit seat to the circular groove is the same as the distance from the positioning hole to the rotating pin shaft.

[0014] Based on the above, the column stopper is a wedge-shaped block with small ends and a relatively large middle upper part. The lower side of the column stopper is adaptively inserted into the U-shaped slot. Circular fixing rings are connected to the upper end of the column stopper and the upper part of one side plate of the turning plate respectively. A chain or a steel wire rope is connected between the two circular fixing rings.

[0015] Based on the above, reinforcing angle plates are welded along the length direction on the left and right inner sides of the turning plate. The reinforcing angle plates on the left are respectively connected to the inner wall of the left side plate and the inner wall of the inner side plate of the turning plate. The reinforcing angle plates on the right are respectively connected to the inner wall of the right side plate and the inner wall of the inner side plate of the turning plate. The rotating pin shaft horizontally penetrates through the two reinforcing angle plates.

[0016] Based on the above, two symmetric anti-collision block fixing plates are welded to the bottom of the side beam. The right side of the left anti-collision block fixing plate is aligned with the lower part of the inner side of the left self-locking fixing plate, and the left side of the right anti-collision block fixing plate is aligned with the lower part of the inner side of the right self-locking fixing plate. A rubber anti-collision block is fixedly installed between the two anti-collision block fixing plates.

[0017] The utility model has substantial features and progress compared with the prior art. Specifically, the components of the utility model are designed modularly, which can simplify the production process. A rotating pin shaft is arranged at the bottom of the column welding assembly. Sector-shaped grooves are provided on the upper and lower parts of the outer circumferences of both ends of the rotating pin shaft. Two self-locking fixing plates are welded on the side beam. Slideway grooves are provided on the self-locking fixing plates, and circular grooves are provided at the lower ends of the slideway grooves. When installing the column, the column welding assembly can be kept inclined so that the sector-shaped grooves at both ends of the rotating pin shaft are respectively assembled into the slideway grooves on the two self-locking fixing plates. After the sector-shaped grooves at both ends of the rotating pin shaft are respectively installed into the circular grooves at the lower ends of the two slideway grooves, the column welding assembly is turned upwards and closely attached to the side beam. Then the rotating pin shaft rotates together with the column welding assembly, and the column limit seat is correspondingly clamped in the positioning holes on the column welding assembly. The bottom surfaces of the sector-shaped grooves at both ends of the rotating pin shaft rotate to the horizontal, and the arc structures at the sector-shaped grooves at both ends of the rotating pin shaft are exactly locked in the circular grooves at the lower ends of the two slideway grooves, realizing the self-locking function between the column welding assembly and the self-locking fixing plates. Then the column block is directly inserted into the U-shaped slot on the column limit seat, and the column welding assembly can be blocked, and the column welding assembly is fixedly connected with the column limit seat, thereby fixedly installing the column welding assembly on the side beam. If the column needs to be turned over, only the column block needs to be pulled out from the U-shaped slot on the column limit seat, and the column can be turned over around the rotating pin shaft on the self-locking fixing plate. If the column needs to be removed, only the column block needs to be pulled out from the U-shaped slot on the column limit seat, the column welding assembly is turned downwards to the horizontal, the bottom surfaces of the sector-shaped grooves at both ends of the rotating pin shaft rotate to the vertical, and then the sector-shaped grooves at both ends of the rotating pin shaft are respectively moved upwards along the two slideway grooves, and the sector-shaped grooves at both ends of the rotating pin shaft can be removed from the slideway grooves on the two self-locking fixing plates respectively, thereby realizing the removal of the column welding part from the two self-locking fixing plates. In summary, compared with the existing turnover column, the utility model is more convenient for disassembly and assembly, time-saving and labor-saving, and has a self-locking function after installation, is more practical, has a simple structural design, and is convenient for maintenance and replacement. Description of the Drawings

[0018] Figure 1 is the structural schematic diagram of the column installation and self-locking of the utility model.

[0019] Figure 2 is the side view of the column installation and self-locking of the utility model.

[0020] Figure 3It is the top view when the column of the utility model is installed and self-locked.

[0021] Figure 4 It is the welding schematic diagram of the self-locking fixing component and the column limit seat of the utility model on the side beam.

[0022] Figure 5 It is the structural schematic diagram of the column welded part of the utility model.

[0023] Figure 6 It is the structural schematic diagram of the column stopper of the utility model.

[0024] Figure 7 It is the side view when the column of the utility model is erected and in the installation self-locking state.

[0025] Figure 8 It is the side view when the column of the utility model is flipped to the horizontal and in the ready-to-dismantle state.

[0026] Figure 9 It is the side view when the column of the utility model is in the disassembly process.

[0027] In the figure: 1. Column limit seat; 2. Column stopper; 3. Rotating pin shaft; 4. Positioning hole; 5. Column body; 6. Flipping plate; 7. Inner sealing plate; 8. Sector slot; 9. Self-locking fixing plate; 10. Slideway slot; 11. Circular slot; 12. U-shaped slot; 13. Circular fixing ring; 14. Steel wire rope; 15. Reinforcing angle plate; 16. Anti-collision block fixing plate; 17. Side beam. Specific embodiments

[0028] The following further describes the technical solution of the utility model in detail through specific embodiments.

[0029] Embodiment 1

[0030] As Figures 1-9 shown, a detachable flipping column with a self-locking device includes a column welded part, a self-locking fixing component, a column limit seat 1 and a column stopper 2;

[0031] The bottom of the column welded part is provided with a rotating pin shaft 3, and the column welded part is rotatably connected to the self-locking fixing component through the rotating pin shaft 3. The column welded part is also provided with a positioning hole 4;

[0032] The self-locking fixing component is connected to the side beam 17 and is used to support and lock the rotating pin shaft 3 to make the column welded part self-lock;

[0033] The column limit seat 1 is connected to the side beam 17 and is correspondingly clamped with the positioning hole 4;

[0034] The column stopper 2 is correspondingly inserted into the column limit seat 1 for fixedly connecting the column welded part and the column limit seat 1.

[0035] In this embodiment, the column welded part includes a column body 5 and a turning plate 6. The column body 5 is a U-shaped box structure that is transparent up and down and has an open side facing inwards. The turning plate 6 is a U-shaped box structure that is transparent up and down and has an open side facing outwards. An inner sealing plate 7 is welded at the inner port of the column body 5. The upper side of the outer surface of the inner side plate of the turning plate 6 is welded to the lower side of the outer surface of the outer side plate of the column body 5. The positioning hole 4 is opened in the middle lower part of the inner side plate of the turning plate 6 and is lower than the lower end of the column body 5. The rotating pin shaft 3 is fixedly arranged at the lower side edge part between the left and right side plates of the turning plate 6 and is lower than the positioning hole 4. The left end of the rotating pin shaft 3 penetrates out of the left side plate of the turning plate 6 to the left, and the right end of the rotating pin shaft 3 penetrates out of the right side plate of the turning plate 6 to the right. Sector-shaped grooves 8 are opened on the upper and lower parts of the outer circumference of both ends of the rotating pin shaft 3. The groove bottom surface of the sector-shaped groove 8 is perpendicular to the column body 5.

[0036] In this embodiment, the self-locking fixing component includes two self-locking fixing plates 9. The two self-locking fixing plates 9 are welded to the side beam 17 at intervals left and right. The lower side edge of the self-locking fixing plate 9 is lower than the bottom of the side beam 17. A slideway groove 10 is opened on the self-locking fixing plate 9. The upper end of the slideway groove 10 is opened on the outer side edge of the self-locking fixing plate 9. The lower end of the slideway groove 10 extends to the middle lower part of the self-locking fixing plate 9 and is provided with a circular groove 11. The circular groove 11 is lower than the bottom of the side beam 17. The distance from the circular groove 11 to the top of the side beam 17 is equal to the distance from the rotating pin shaft 3 to the lower end of the column body 5. The upper section of the slideway groove 10 is arc-shaped and extends downwards. The lower section of the slideway groove 10 is a vertical section. The width of the slideway groove 10 is smaller than the inner diameter of the circular groove 11. The width of the slideway groove 10 is greater than or equal to the narrower dimension of the rotating shaft in the cross-section at the sector-shaped groove 8 and is smaller than the diameter of the rotating shaft. The diameter of the rotating shaft is less than or equal to the inner diameter of the circular groove 11.

[0037] In this embodiment, the column limit seat 1 is welded to the side beam 17 and is located in the middle upper part between the two self-locking fixing plates 9. A U-shaped slot 12 that is transparent up and down and has an inner open side is opened on the column limit seat 1. The distance from the column limit seat 1 to the circular groove 11 is the same as the distance from the positioning hole 4 to the rotating pin shaft 3.

[0038] In this embodiment, the column stopper 2 is a wedge-shaped block with small ends and a relatively large middle upper part. The lower side part of the column stopper 2 is adaptively inserted into the U-shaped slot 12. Circular fixing rings 13 are connected to the upper end of the column stopper 2 and the upper part of one side plate of the turning plate 6. A chain or steel wire rope 14 is connected between the two circular fixing rings 13.

[0039] In this embodiment, reinforcing angle plates 15 are welded along the length direction on the left and right sides inside the turning plate 6. The reinforcing angle plates 15 on the left are respectively connected to the inner walls of the left side plate and the inner side plate of the turning plate 6, and the reinforcing angle plates 15 on the right are respectively connected to the inner walls of the right side plate and the inner side plate of the turning plate 6. The rotating pin shaft 3 horizontally penetrates through the two reinforcing angle plates 15.

[0040] When installing the column in this embodiment, the column welded assembly can be kept inclined, that is, the column body 5 and the turning plate 6 are inclined. Place the bottom of the turning plate 6 between the two self-locking fixing plates 9, so that the two ends of the rotating pin shaft 3 at the sector grooves 8 are respectively assembled into the slideway grooves 10 on the two self-locking fixing plates 9, and the two ends of the rotating pin shaft 3 at the sector grooves 8 are respectively installed into the circular grooves 11 at the lower ends of the two slideway grooves 10. Then turn the column welded assembly upward and make it close to the side beam 17, the turning plate 6 is close to the side beam 17, and the column body 5 is placed on the top of the side beam 17. Then the rotating pin shaft 3 rotates together with the turning plate 6, and the column limit seat 1 is correspondingly clamped in the positioning hole 4 on the column welded assembly. The bottom surfaces of the sector grooves 8 at the two ends of the rotating pin shaft 3 rotate to the horizontal, and the arc structures at the two ends of the sector grooves 8 of the rotating pin shaft 3 are just locked in the circular grooves 11 at the lower ends of the two slideway grooves 10, realizing the self-locking function between the column welded assembly and the self-locking fixing plate 9. Then directly insert the column stopper 2 into the U-shaped slot 12 on the column limit seat 1 to block the column welded assembly, fixedly connect the column welded assembly with the column limit seat 1, and further fixedly install the column welded assembly on the side beam 17. When the column needs to be turned, just pull out the column stopper 2 from the U-shaped slot 12 on the column limit seat 1, and the column can be turned on the self-locking fixing plate 9 around the rotating pin shaft 3. When the column needs to be removed, just pull out the column stopper 2 from the U-shaped slot 12 on the column limit seat 1, turn the column welded assembly downward to the horizontal, the bottom surfaces of the sector grooves 8 at the two ends of the rotating pin shaft 3 rotate to the vertical, and then move the two ends of the sector grooves 8 of the rotating pin shaft 3 upward along the two slideway grooves 10 respectively, and the two ends of the sector grooves 8 of the rotating pin shaft 3 can be removed from the slideway grooves 10 on the two self-locking fixing plates 9 respectively, and then the column welded part can be removed from the two self-locking fixing plates 9. Compared with the existing turning column structure, the turning column provided in this embodiment is more convenient to disassemble and assemble, time-saving and labor-saving, and has a self-locking function after installation, is more practical, and has a simple structural design.

[0041] Embodiment 2

[0042] The difference from Embodiment 1 is that in this embodiment, as Figure 1 、 2As shown in Figures 3, 4, 7, 8 and 9, two symmetrically arranged anti-collision block fixing plates 16 are also welded to the bottom of the side beam 17. The right side of the left anti-collision block fixing plate 16 is aligned with the lower part of the inner side of the left self-locking fixing plate 9, and the left side of the right anti-collision block fixing plate 16 is aligned with the lower part of the inner side of the right self-locking fixing plate 9. A rubber anti-collision block (not shown in the figure) is fixedly installed between the two anti-collision block fixing plates 16. The rubber anti-collision block is used to prevent the turning plate 6 from hitting the side beam 17 when it turns downward.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: still modifications can be made to the specific embodiments of the present invention or equivalent replacements can be made to some technical features; without departing from the spirit of the technical solutions of the present invention, they should all be covered within the scope of the technical solutions claimed by the present invention.

Claims

1. A detachable flip column with a self-locking device, characterized in that: It includes a column welding part, a self-locking fixing component, a column limit seat and a column stopper; A rotating pin is provided at the bottom of the column welded part, and the column welded part is rotatably connected with the self-locking fixing assembly through the rotating pin. A positioning hole is also provided on the column welded part; The self-locking fixing assembly is connected to the side beam and is used to support and lock the rotating pin shaft so that the column welded parts are self-locking; The column limit seat is connected to the side beam and is clamped corresponding to the positioning hole; The column stopper is correspondingly plugged into the column limit seat and is used for fixedly connecting the column welding part with the column limit seat.

2. The detachable flip column with a self-locking device according to claim 1, characterized in that: The column welded parts include a column body and a flip plate. The column body is a U-shaped box structure that is transparent from top to bottom and the open side faces inward. The flip plate is a U-shaped box structure that is transparent from top to bottom and the open side faces outward. An inner sealing plate is welded at the inner port of the column body. The upper part of the outer side surface of the inner plate of the flip plate is welded to the lower part of the outer side surface of the outer plate of the column body. The positioning hole is opened on the lower side of the middle part of the inner plate of the flip plate and is lower than the lower end of the column body. The rotating pin is fixedly arranged at the lower edge between the left and right side plates of the flip plate and is lower than the positioning hole. The left end of the rotating pin passes through the left side plate of the flip plate to the left, and the right end of the rotating pin passes through the right side plate of the flip plate to the right. Fan-shaped grooves are opened on the upper and lower parts of the outer circumference of both ends of the rotating pin, and the bottom surface of the fan-shaped groove is perpendicular to the column body.

3. The detachable flip column with a self-locking device according to claim 2 is characterized in that: The self-locking fixing assembly includes two self-locking fixing plates, which are welded on the side beams at intervals on the left and right. The lower edge of the self-locking fixing plate is lower than the bottom of the side beam. A slide groove is provided on the self-locking fixing plate. The upper end of the slide groove is provided on the outer edge of the self-locking fixing plate. The lower end of the slide groove extends to the lower middle side of the self-locking fixing plate and is provided with a circular groove. The circular groove is lower than the bottom of the side beam. The distance from the circular groove to the top of the side beam is equal to the distance from the rotating pin to the lower end of the column body. An upper section of the slide groove is arc-shaped and extends downward, and a lower section of the slide groove is a vertical section. The width of the slide groove is smaller than the inner diameter of the circular groove. The width of the slide groove is greater than or equal to the narrower dimension of the rotating shaft in the cross section at the fan-shaped groove and is smaller than the diameter of the rotating shaft. The diameter of the rotating shaft is less than or equal to the inner diameter of the circular groove.

4. The detachable flip column with a self-locking device according to claim 3 is characterized in that: The column limit seat is welded on the side beam and located in the middle upper part of the two self-locking fixing plates. A U-shaped slot that is transparent from top to bottom and open inside is opened on the column limit seat. The distance from the column limit seat to the circular groove is the same as the distance from the positioning hole to the rotating pin shaft.

5. The detachable flip column with a self-locking device according to claim 4, characterized in that: The column stopper is a wedge-shaped block with small ends and a large middle part. The lower side of the column stopper is adapted to be plugged into the U-shaped slot. The upper end of the column stopper and the upper part of one side plate of the flip plate are connected with circular fixing rings, and an iron chain or steel wire rope is connected between the two circular fixing rings.

6. The detachable flip column with a self-locking device according to any one of claims 2 to 5, characterized in that: Reinforced angle plates are welded on the left and right sides of the flip plate along their length direction. The left reinforcement angle plate is respectively connected to the inner wall of the left plate and the inner wall of the inner plate of the flip plate, and the right reinforcement angle plate is respectively connected to the inner wall of the right plate and the inner wall of the inner plate of the flip plate, and the rotating pin passes through the two reinforcement angle plates horizontally.

7. The detachable flip column with a self-locking device according to claim 3, characterized in that: Two left-right symmetrical anti-collision block fixing plates are welded to the bottom of the side beam. The right side of the left anti-collision block fixing plate is aligned with the lower side of the inner side of the left self-locking fixing plate, and the left side of the right anti-collision block fixing plate is aligned with the lower side of the inner side of the right self-locking fixing plate. A rubber anti-collision block is fixedly installed between the two anti-collision block fixing plates.

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