Combined locking device for carrying of flat car

Abstract

A united locking device for flat car carrying belongs to the technical field of mining transportation equipment and comprises two united assemblies, each united assembly comprises a limiting column, each limiting column is used for being vertically inserted into a traction part of a lower-layer flat car, a limiting unit is detachably installed on the lower portion of each limiting column, and a limiting part is fixedly arranged on the upper portion of each limiting column. The diameter of the limiting portion is larger than that of the limiting column, a pull rod is hinged to the side wall of the limiting portion, and a connecting sleeve is fixedly arranged at the end, away from the limiting portion, of the pull rod, used for being connected with a wheel shaft of an upper-layer flat car and of an opening and closing structure. United locking between the upper-layer flat car and the lower-layer flat car is achieved, the position of the upper-layer flat car can be effectively limited, a forklift can conveniently carry the stacked flat cars, due to the arrangement of the limiting columns, the traction part of the flat cars does not need to be transformed, connecting through holes of the traction part are completely applied, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of mining transportation equipment, in particular to a combined locking device for forklift truck handling of flatbed trucks. Background Art

[0002] The mining flatbed truck is a flatbed truck specially used for mine transportation and construction machinery, and is suitable for auxiliary work in mine transportation and roadway construction. It has the characteristics of simple structure, wide application, strong load-bearing capacity, etc. When in use, the mined coal is generally boxed and placed on each flatbed truck, and the flatbed trucks are connected end to end and run on the steel rails of the mine track.

[0003] Since the mining flatbed truck itself has no power device and needs external force for dragging or handling, and since the forklift truck has a strong load-bearing capacity and a relatively small body size and can flexibly shuttle in narrow mine roadways, therefore, the handling of the mining flatbed truck generally uses a forklift truck, so as to facilitate the handling of the mining flatbed truck from one place to another, improve the operation efficiency, and reduce the time and labor cost of manual handling.

[0004] Since after the mining flatbed trucks are stacked, it is impossible to limit the upper mining flatbed truck after stacking, resulting in that the upper mining flatbed truck is extremely easy to move along its length direction. Therefore, in actual handling work, the forklift truck can only transport one mining flatbed truck at a time and cannot handle the stacked mining flatbed trucks, otherwise the problem of the upper mining flatbed truck slipping is very likely to occur. And the method of transporting one mining flatbed truck at a time will result in a large number of handling times when the number of flatbed trucks to be handled is large, which is time-consuming, laborious and energy-wasting. Summary of the Utility Model

[0005] In order to solve the technical problem in the above background art that currently the forklift truck can only transport one mining flatbed truck at a time, with low efficiency, being time-consuming, laborious and energy-wasting, the utility model provides a combined locking device for forklift truck handling of flatbed trucks.

[0006] The technical solution of the utility model is as follows:

[0007] The utility model provides a combined locking device for transporting a flatbed truck, comprising two groups of combined components, the combined components comprising a limit column, the limit column being used to be vertically inserted in the traction part of the lower flatbed truck, the lower part of the limit column being detachably installed with a limit unit, the upper part of the limit column being fixedly provided with a limit part, the diameter of the limit part being larger than the limit column, a pull rod being hinged on the side wall of the limit part, and a connecting sleeve being fixedly provided at one end of the pull rod away from the limit part, the connecting sleeve being used to be connected with the wheel axle of the upper flatbed truck, the connecting sleeve being an opening and closing structure, the traction part of the lower flatbed truck being connected with the wheel axle of the upper flatbed truck through the cooperation of the limit column and the pull rod, so as to realize the combined locking between the upper and lower flatbed trucks, effectively limit the position of the upper flatbed truck, and facilitate the forklift to transport the stacked flatbed trucks, and the setting of the limit column does not need to modify the traction part of the flatbed truck, and the connecting through hole of the traction part is fully utilized, so it is easy to use.

[0008] Preferably, the diameter of the limiting column is the same as the diameter of the connecting through hole on the traction part to prevent the limiting column from shaking in the connecting through hole.

[0009] Preferably, a through hole is formed at the lower portion of the limiting column, and the limiting unit is detachably mounted in the through hole, so that the position of the limiting column can be limited by the limiting unit to prevent the limiting column from being pulled out of the traction portion.

[0010] Preferably, the distance between the limiting portion and the through hole is the same as the thickness of the traction portion, so as to avoid axial movement of the limiting column.

[0011] Preferably, a mounting seat is fixedly provided on the side wall of the limiting portion, and a rotating shaft is fixedly provided on one end of the pull rod away from the connecting sleeve. The rotating shaft is rotatably connected to the mounting seat to facilitate adjustment of the angle between the pull rod and the limiting column to improve its adaptability.

[0012] Preferably, the connecting sleeve includes a first arc plate and a second arc plate, the first arc plate is fixedly arranged on the pull rod, one end of the second arc plate is hinged to the first arc plate, and the other end of the second arc plate is connected to the first arc plate through an ear plate and bolts to facilitate the connection between the connecting sleeve and the wheel axle.

[0013] Preferably, the inner diameter of the connecting sleeve is the same as the outer diameter of the flatbed wheel axle, so that the connecting sleeve can be tightly clamped on the axle.

[0014] Preferably, a connecting column is fixedly provided on the upper part of the limiting part, and the connecting column is used to connect with the traction part of the upper flatbed truck to further improve the limiting capacity and avoid force damage to the pull rod.

[0015] It can be seen from the above technical solutions that the advantages of the utility model are:

[0016] 1. The traction part of the lower flatbed truck is connected to the wheel axle of the upper flatbed truck through the cooperation of the limit column and the pull rod to realize the joint locking between the upper and lower flatbed trucks, which can effectively limit the position of the upper flatbed truck and facilitate the forklift to carry the stacked flatbed trucks. The setting of the limit column does not require the modification of the traction part of the flatbed truck, and the connection through hole of the traction part can be fully applied, which is easy to use.

[0017] 2. A connecting column is fixedly provided on the upper part of the limiting part, which can be used to connect with the traction part of the upper mining flatbed truck to improve the limiting capacity and avoid force damage to the pull rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of the use of a combined locking device according to one or more embodiments of the present invention;

[0020] Figure 2 It is a schematic diagram of the overall structure of the combined assembly according to one or more embodiments of the present invention;

[0021] Figure 3 It is a schematic structural diagram of a limiting column according to one or more embodiments of the present utility model;

[0022] Figure 4 It is a schematic diagram of the structure of a pull rod according to one or more embodiments of the present utility model;

[0023] The components represented by the reference numerals in the figure are:

[0024] 1. Traction part; 2. Limiting column; 3. Pull rod; 4. Through hole; 5. Limiting part; 6. Mounting seat; 7. Rotating shaft; 8. Connecting sleeve; 81. First arc plate; 82. Second arc plate; 83. Ear plate; 9. Connecting column. DETAILED DESCRIPTION

[0025] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0026] In a typical implementation of the present invention, Figures 1-4 As shown, a combined locking device for flatbed truck transportation is proposed, including: two sets of combined components for use in conjunction with each other, the two sets of combined components are arranged relatively to each other, specifically, in actual use, a combined component is respectively inserted into the two traction parts 1 at both ends of the lower mining flatbed truck, and the two ends of the lower mining flatbed truck are respectively connected to the wheel axles of the adjacent upper mining flatbed truck through the combined components, so that the upper and lower mining flatbed trucks are jointly locked together, limiting the movement of the upper mining flatbed truck, and facilitating the forklift to transport two stacked mining flatbed trucks at one time.

[0027] like Figure 2 As shown, the combined assembly includes a limit column 2 and a pull rod 3, the pull rod 3 is hinged to the limit column 2, and there is a set angle between the pull rod 3 and the limit column 2. The limit column 2 is used to be inserted into the traction part 1 of the lower mining flatbed truck, and the pull rod 3 is used to connect with the wheel axle of the upper mining flatbed truck.

[0028] Specific as Figure 3 As shown, the limiting column 2 is a columnar structure, the diameter of the limiting column 2 is the same as the diameter of the connecting through hole on the traction part 1 of the mining flatbed truck, and a through hole 4 is opened at the lower part of the limiting column 2. The axial direction of the through hole 4 is perpendicular to the axial direction of the limiting column 2, and the through hole 4 passes through the limiting column 2. The through hole 4 is used for the installation of limiting units such as pins and stop rods;

[0029] A limiting portion 5 is also fixed on the limiting column 2. The limiting portion 5 is fixed on the upper part of the limiting column 2 by welding or integral molding. The diameter of the limiting portion 5 is larger than the limiting column 2. The distance between the limiting portion 5 and the through hole 4 is the same as the thickness of the traction part 1 on the mining flatbed truck. Therefore, when the limiting column 2 is vertically inserted into the connecting through hole of the traction part 1, the limiting unit and the limiting portion 5 can cooperate to make the position of the limiting column 2 and the traction part 1 relatively fixed, and the installation and disassembly are fast and convenient. The setting of the limiting column 2 does not require the modification of the traction part 1 of the mining flatbed truck, and the connecting through hole of the traction part 1 is fully utilized, which is easy to use.

[0030] A mounting seat 6 is fixedly provided on the side wall of the limiting portion 5, and the pull rod 3 is rotatably connected to the mounting seat 6 via a rotating shaft 7. Figure 4 As shown, a rotating shaft 7 is fixedly provided at one end of the pull rod 3, and a connecting sleeve 8 is fixedly provided at the other end of the pull rod 3. The rotating shaft 7 is perpendicular to the axial direction of the pull rod 3, and the rotating shaft 7 is rotatably connected to the mounting seat 6. The connecting sleeve 8 is an opening and closing structure, and is used to connect to the wheel axle of the mining flatbed truck.

[0031] Specifically, the connecting sleeve 8 includes a first arc plate 81 and a second arc plate 82. The first arc plate 81 is fixedly arranged at the end of the pull rod 3 by welding. One end of the second arc plate 82 is hinged to the first arc plate 81 through a hinge shaft, and the other end of the second arc plate 82 contacts the other end of the first arc plate 81 and is locked by the cooperation of an ear plate 83 and a bolt.

[0032] The first arc plate 81 and the second arc plate 82 cooperate to form a cylindrical structure. The inner diameter of the connecting sleeve 8 is the same as the outer diameter of the axle of the mine flat car. An ear plate 83 is fixedly arranged on the outer wall of the free ends of the first arc plate 81 and the second arc plate 82 respectively. A plurality of bolt holes are provided on the ear plate 83. When it is necessary to open the connecting sleeve 8, the bolt between the two ear plates 83 is removed. When it is necessary to lock the connecting sleeve 8, the two ear plates 83 are fixedly connected by using a bolt.

[0033] In order to further improve the stability between the upper and lower layers of mine flat cars, a connecting column 9 can also be fixedly arranged on the upper part of the limiting part 5 by welding or other means. The diameter of the connecting column 9 is the same as the diameter of the limiting column 2, or it can be understood that the diameter of the connecting column 9 is the same as the diameter of the connecting through hole of the traction part 1, so that the connecting column 9 can be used to connect with the traction part 1 of the upper-layer mine flat car, improve the limiting ability and avoid the force damage of the pull rod 3.

[0034] It should be noted that the operation of using the limiting column 2 and the connecting column 9 to connect the traction parts 1 of the upper and lower layers of mine flat cars is only applicable to the working conditions where the specifications of the upper and lower layers of mine flat cars are the same. When the specifications of the upper and lower layers of mine flat cars are different, the connecting column 9 cannot be inserted into the upper traction part 1.

[0035] In order to further improve the versatility, the pull rod 3 can also be set into a telescopic structure, so that the length can be adjusted according to the needs to adapt to different working condition requirements.

[0036] The specific working principle is as follows:

[0037] Use a forklift to stack two mine flat cars together. Insert a limiting column 2 into the traction parts 1 at both ends of the lower-layer mine flat car respectively, and insert a limiting unit such as a stop bar into the through hole 4 at the lower part of the limiting column 2. Thus, under the cooperation of the limiting unit and the limiting part 5, the limiting column 2 is fixedly connected with the corresponding traction part 1 to limit the axial movement of the limiting column 2. Open the connecting sleeve 8 and install it on the axle of the adjacent upper-layer mine flat car. For example, the connecting sleeve 8 at the left end of the lower-layer mine flat car is connected to the left axle of the upper layer, and the connecting sleeve 8 at the right end of the lower-layer mine flat car is connected to the right axle of the upper layer. After installation, use a bolt to lock the connecting sleeve 8 to realize the combined locking between the upper and lower layers of mine flat cars, and effectively limit the position of the upper-layer mine flat car.

[0038] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to the embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. A combined locking device for flatbed truck transportation, comprising: Two groups of combined components are characterized in that the combined components include a limit column (2), the limit column (2) is used to be vertically inserted into the traction part (1) of the lower flatbed truck, the lower part of the limit column (2) is detachably installed with a limit unit, the upper part of the limit column (2) is fixedly provided with a limit part (5), the diameter of the limit part (5) is larger than the limit column (2), a pull rod (3) is hinged on the side wall of the limit part (5), and a connecting sleeve (8) is fixedly provided at one end of the pull rod (3) away from the limit part (5), and the connecting sleeve (8) is used to be connected to the wheel axle of the upper flatbed truck, and the connecting sleeve (8) is an opening and closing structure.

2. The combined locking device for flatbed truck transportation according to claim 1, characterized in that: The diameter of the limiting column (2) is the same as the diameter of the connecting through hole (4) on the traction part (1).

3. The combined locking device for flatbed truck transportation according to claim 1, characterized in that: A through hole (4) is provided at the lower part of the limiting column (2), and the limiting unit is detachably mounted in the through hole (4).

4. The combined locking device for flatbed truck transportation according to claim 3, characterized in that: The distance between the limiting portion (5) and the through hole (4) is the same as the thickness of the traction portion (1).

5. The combined locking device for flatbed truck transportation according to claim 1, characterized in that: A mounting seat (6) is fixedly provided on the side wall of the limiting portion (5), and a rotating shaft (7) is fixedly provided on one end of the pull rod (3) away from the connecting sleeve (8), and the rotating shaft (7) is rotatably connected to the mounting seat (6).

6. The combined locking device for flatbed truck transportation according to claim 1, characterized in that: The connecting sleeve (8) comprises a first arc plate (81) and a second arc plate (82); the first arc plate (81) is fixedly arranged on the pull rod (3); one end of the second arc plate (82) is hinged to the first arc plate (81); and the other end of the second arc plate (82) is connected to the first arc plate (81) via an ear plate (83) and bolts.

7. The combined locking device for flatbed truck transportation according to claim 1, characterized in that: The inner diameter of the connecting sleeve (8) is the same as the outer diameter of the flatbed wheel axle.

8. The combined locking device for flatbed truck transportation according to claim 1, characterized in that: A connecting column (9) is fixedly provided on the upper part of the limiting part (5), and the connecting column (9) is used to be connected to the traction part (1) of the upper flatbed vehicle.

Images