Movable stand column of semitrailer

Abstract

The utility model discloses a movable stand column of a semitrailer, which belongs to the technical field of semitrailers and comprises a guide cylinder, a strip-shaped through hole is arranged on the surface of the guide cylinder, two ends of the guide cylinder are arranged in an opening mode, a guide rod is inserted at the opening position of the bottom of the guide cylinder in a sliding mode, and a threaded hole is arranged on the surface of the guide rod. The guide cylinder and the guide rod inserted into the guide cylinder in a sliding mode form a semitrailer movable stand column structure, when the guide rod is assembled relative to the semitrailer, the guide rod is pulled down relative to the guide cylinder, the guide rod is inserted into a preformed hole in the surface of the semitrailer, and the bottom end of the guide cylinder is blocked and limited by the opening position of the preformed hole in the surface of the semitrailer; after the locking bolt is screwed and inserted into the threaded hole, the protruding end of the locking bolt is tightly attached to the surface of the guide cylinder, the carriage fence is rotated relative to the semitrailer, the fence fixes and limits the guide cylinder through the locking piece, the operation of installing the movable stand column relative to the semitrailer is completed, and the use effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of semi-trailers, and more specifically to a movable column for a semi-trailer. Background Art

[0002] A semi-trailer is a trailer with the axle placed behind the center of gravity of the vehicle (when the vehicle is evenly loaded) and equipped with a coupling device that can transmit horizontal and vertical forces to the tractor. Semi-trailers are generally three-axle semi-trailers, which are divided into many types such as 11-meter warehouse semi-trailers, 13-meter warehouse semi-trailers, low-bed semi-trailers, etc. It is a heavy-duty transportation vehicle connected to the semi-trailer head through a traction pin.

[0003] After searching, the existing announcement number CN210235120U is a semi-trailer with a movable column, which includes a semi-trailer body and a column assembly. The column assembly includes a column body and a locking mechanism, which is arranged at the lower end of the column body, and the locking mechanism is used to fix the column to the side beam of the semi-trailer body in a releasable manner. The column body is fixed on one side of the fence of the semi-trailer body and is roughly perpendicular to the side beam, and the fence is arranged on the side beam so as to be turned outward around the other side. After the locking mechanism is unlocked, the fixation of the column body on the side beam is released, and then the fixation of the side of the fence fixed to the column body on the side beam is released, and then the column body can be turned outward with the side of the fence, and the column body is opened while the fence is opened. The side beam is away from the column body. Thereby, when the fence is opened, the column assembly is also separated from the side beam, and there is no obstruction of the column on the side beam, which is convenient for unloading and improves the speed of unloading.

[0004] There are columns installed on both side walls of the carriage, but most of the columns of the semi-trailer are vertically welded to the surface of the carriage. When loading or unloading, the columns are blocked, which reduces the efficiency of loading and unloading. Therefore, we propose a movable column for a semi-trailer to solve the above problems. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide a movable column for a semi-trailer. The guide cylinder and the guide rod slidably inserted in the guide cylinder constitute the movable column structure of the semi-trailer. When the guide rod is assembled relative to the semi-trailer, the guide rod is pulled down relative to the guide cylinder, and the guide rod is inserted in the reserved hole on the surface of the semi-trailer. The bottom end of the guide cylinder is blocked and limited by the opening position of the reserved hole on the surface of the semi-trailer. After the locking bolt is screwed and the locking bolt is inserted in the threaded hole, the protruding end of the locking bolt fits tightly on the surface of the guide cylinder. The car fence is rotated relative to the semi-trailer, and the fence fixes and limits the guide cylinder through the locking piece. The operation of installing the movable column relative to the semi-trailer is completed, and the use effect is good.

[0007] 2. Technical solution

[0008] To solve the above problems, the utility model adopts the following technical solutions.

[0009] A semi-trailer movable column comprises a guide cylinder, a strip-shaped through hole is provided on the surface of the guide cylinder, both ends of the guide cylinder are open, a guide rod is slidably inserted in the bottom opening of the guide cylinder, a threaded hole is provided on the surface of the guide rod, and a locking bolt is screwed in the threaded hole;

[0010] An assembly frame is welded on the outer surface of the guide cylinder, and a cover plate is plugged into the opening position of the assembly frame.

[0011] Preferably, the locking bolt is located outside the guide cylinder, and the locking bolt passes through the strip-shaped through hole of the guide cylinder.

[0012] Preferably, a shaft cylinder is symmetrically welded to the outer wall of the guide cylinder, and the shaft cylinder is located outside the bottom opening of the guide cylinder.

[0013] Preferably, a sealing ring is bonded to the opening of the assembly frame, and positioning seats are symmetrically mounted on the inner wall of the assembly frame.

[0014] Preferably, positioning blocks are symmetrically mounted on the inner surface of the cover plate, and the positioning blocks and the positioning seats are correspondingly engaged.

[0015] Preferably, a traction seat is fixedly connected to the top end of the cover plate, and a traction hole is provided on the surface of the traction seat.

[0016] Preferably, a lifting ring is welded to the outer wall of the guide cylinder, and the lifting ring is located above the assembly frame.

[0017] 3. Beneficial effects

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] (1) The guide cylinder and the guide rod slidably inserted in the guide cylinder of the present invention form a movable column structure of a semitrailer. When the guide rod is assembled relative to the semitrailer, the guide rod is pulled down relative to the guide cylinder, and the guide rod is inserted into the reserved hole on the surface of the semitrailer. The bottom end of the guide cylinder is blocked and limited by the opening position of the reserved hole on the surface of the semitrailer. The locking bolt is screwed. After the locking bolt is inserted into the threaded hole, the protruding end of the locking bolt fits tightly against the surface of the guide cylinder. The carriage fence is rotated relative to the semitrailer, and the fence fixes and limits the guide cylinder through the locking member. The operation of installing the movable column relative to the semitrailer is completed, and the use effect is good.

[0020] (2) In this solution, a sealing ring is bonded to the opening position of the assembly frame, and the cover plate is inserted into the interior of the assembly frame. The positioning block and the positioning seat on the inner surface of the cover plate are snap-fitted to each other. The cover plate shields and protects the connection position of the guide cylinder and the locking bolt, and has excellent dustproof, waterproof and corrosion-resistant properties, and keeps the guide rod sliding smoothly relative to the guide cylinder, which is convenient for adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0022] Figure 2 This is a schematic diagram of the guide cylinder and guide rod structure of the utility model;

[0023] Figure 3 This is a schematic diagram of the guide rod structure of the utility model;

[0024] Figure 4 This is a schematic diagram of the cover structure of the utility model.

[0025] Description of the numbers in the figure:

[0026] 1. Guide cylinder; 101. Strip-shaped through hole; 2. Guide rod; 201. Threaded hole; 3. Assembly frame; 301. Sealing ring; 302. Positioning seat; 4. Cover plate; 5. Traction seat; 6. Positioning block; 7. Lifting ring; 8. Shaft cylinder; 9. Locking bolt. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0028] Embodiment 1:

[0029] See also Figure 1-4 A semi-trailer movable column includes a guide cylinder 1, a strip-shaped through hole 101 is opened on the surface of the guide cylinder 1, both ends of the guide cylinder 1 are open, a guide rod 2 is slidably inserted in the bottom opening of the guide cylinder 1, a threaded hole 201 is opened on the surface of the guide rod 2, and a locking bolt 9 is screwed in the inner part of the threaded hole 201;

[0030] An assembly frame 3 is welded to the outer surface of the guide cylinder 1 , and a cover plate 4 is inserted into the opening position of the assembly frame 3 .

[0031] The locking bolt 9 is located outside the guide cylinder 1 , and passes through the strip-shaped through hole 101 of the guide cylinder 1 . The outer wall of the guide cylinder 1 is symmetrically welded with a shaft cylinder 8 , and the shaft cylinder 8 is located outside the bottom opening of the guide cylinder 1 .

[0032] It should be noted that the guide cylinder 1 and the guide rod 2 slidably inserted in the guide cylinder 1 constitute a movable column structure of a semi-trailer. When the guide rod 2 is assembled relative to the semi-trailer, the guide rod 2 is pulled down relative to the guide cylinder 1, and the guide rod 2 is inserted into the reserved hole on the surface of the semi-trailer. The bottom end of the guide cylinder 1 is blocked and limited by the opening position of the reserved hole on the surface of the semi-trailer. After the locking bolt 9 is screwed and inserted into the threaded hole 201, the protruding end of the locking bolt 9 fits tightly against the surface of the guide cylinder 1. The car body fence is rotated relative to the semi-trailer, and the fence fixes and limits the guide cylinder 1 through the locking member. The operation of installing the movable column relative to the semi-trailer is completed, and the use effect is good.

[0033] See also Figure 1-4 A sealing ring 301 is bonded to the opening position of the assembly frame 3, a positioning seat 302 is symmetrically installed on the inner wall of the assembly frame 3, a positioning block 6 is symmetrically installed on the inner surface of the cover plate 4, the positioning block 6 and the positioning seat 302 are correspondingly engaged, a traction seat 5 is fixedly connected to the top position of the cover plate 4, a traction hole is opened on the surface of the traction seat 5, a lifting ring 7 is welded on the outer wall of the guide cylinder 1, and the lifting ring 7 is located above the assembly frame 3.

[0034] It should be noted that a sealing ring 301 is bonded to the opening position of the assembly frame 3, the cover plate 4 is inserted into the interior of the assembly frame 3, the positioning block 6 on the inner surface of the cover plate 4 and the positioning seat 302 are snap-fitted into each other, and the cover plate 4 shields and protects the connection position of the guide cylinder 1 and the locking bolt 9, and has excellent dustproof, waterproof and corrosion-resistant properties, and keeps the guide rod 2 sliding smoothly relative to the guide cylinder 1 for easy adjustment.

[0035] When in use: the guide cylinder 1 and the guide rod 2 slidably inserted in the guide cylinder 1 form a movable column structure of the semi-trailer. When the guide rod 2 is assembled relative to the semi-trailer, the guide rod 2 is pulled down relative to the guide cylinder 1, and the guide rod 2 is inserted in the reserved hole on the surface of the semi-trailer. The bottom end of the guide cylinder 1 is blocked and limited by the opening position of the reserved hole on the surface of the semi-trailer. The locking bolt 9 is screwed. After the locking bolt 9 is inserted in the threaded hole 201, the protruding end of the locking bolt 9 is tightly fitted on the surface of the guide cylinder 1, and the semi-trailer rotates relative to the semi-trailer. The carriage fence fixes and limits the guide cylinder 1 through the locking piece, and the operation of installing the movable column relative to the semi-trailer is completed, and the use effect is good; a sealing ring 301 is bonded to the opening position of the assembly frame 3, and the cover plate 4 is inserted into the interior of the assembly frame 3, and the positioning block 6 on the inner surface of the cover plate 4 is correspondingly engaged with the positioning seat 302. The cover plate 4 shields and protects the connection position of the guide cylinder 1 and the locking bolt 9, and has good dustproof, waterproof and corrosion-resistant properties, keeps the guide rod 2 sliding smoothly relative to the guide cylinder 1, and is convenient for adjustment.

[0036] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A semi-trailer movable column, comprising a guide cylinder (1), characterized in that: The surface of the guide cylinder (1) is provided with a strip-shaped through hole (101), and both ends of the guide cylinder (1) are arranged in an open manner. A guide rod (2) is slidably inserted into the bottom opening of the guide cylinder (1), and a threaded hole (201) is provided on the surface of the guide rod (2), and a locking bolt (9) is screwed into the interior of the threaded hole (201); An assembly frame (3) is welded to the outer surface of the guide cylinder (1), and a cover plate (4) is inserted into the opening position of the assembly frame (3).

2. A semi-trailer movable pillar according to claim 1, characterized in that: The locking bolt (9) is located outside the guide cylinder (1), and the locking bolt (9) passes through the strip-shaped through hole (101) of the guide cylinder (1).

3. The movable pillar of a semitrailer according to claim 1, characterized in that: The outer wall of the guide cylinder (1) is symmetrically welded with a shaft cylinder (8), and the shaft cylinder (8) is located outside the bottom opening of the guide cylinder (1).

4. The movable pillar of a semitrailer according to claim 1, characterized in that: A sealing ring (301) is bonded to the opening of the assembly frame (3), and a positioning seat (302) is symmetrically mounted on the inner wall of the assembly frame (3).

5. The movable pillar of a semitrailer according to claim 1, characterized in that: A positioning block (6) is symmetrically mounted on the inner surface of the cover plate (4), and the positioning block (6) and the positioning seat (302) are correspondingly engaged.

6. The movable pillar of a semitrailer according to claim 1, characterized in that: A traction seat (5) is fixedly connected to the top end of the cover plate (4), and a traction hole is provided on the surface of the traction seat (5).

7. The movable pillar of a semitrailer according to claim 1, characterized in that: A lifting ring (7) is welded to the outer wall of the guide cylinder (1), and the lifting ring (7) is located above the assembly frame (3).

Images