Connecting device of double-track transport vehicle

Abstract

The utility model discloses a double-track transport vehicle connecting device which comprises an elastic connecting mechanism and two fixing mechanisms used for being fixedly connected with a double-track transport vehicle, the elastic connecting mechanism comprises a shell, an elastic assembly arranged in the shell and two connecting rods, and the two connecting rods are movably arranged in the end walls of the two ends of the shell in a penetrating mode respectively. The ends, extending out of the shell, of the two connecting rods are in ball connection with the two fixing mechanisms correspondingly, the ends, extending into the shell, of the two connecting rods are provided with limiting blocks correspondingly, and the elastic assembly abuts against the position between the limiting blocks of the two connecting rods. According to the connecting device of the double-track transport vehicle, the connecting device is not prone to damage and deformation, the service life is prolonged, objects in the vehicle are not prone to damage due to violent collision, and therefore the operation efficiency and safety of the double-track transport vehicle are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of double-track transport vehicles, in particular to a double-track transport vehicle connecting device. Background Art

[0002] During mountain construction, double-track transport vehicles are generally used to facilitate the transportation of construction materials. In order to increase the amount of materials transported at one time, multiple carriages are generally spliced ​​together. Mechanical connections are often used between adjacent carriages, and the carriages are connected together through sturdy mechanical components such as hinges and pins. For example, Chinese patent document No. 201510455474.X discloses a railway vehicle and its vehicle connection device connected by convex joints and concave joints. This connection method has a simple structure. Although it can withstand large tensile forces, its flexibility is relatively low. For example, the impact force between carriages cannot be effectively alleviated when going downhill, and the impact force generated between adjacent carriages can easily cause damage and deformation of the connecting components, reduce their service life, and easily cause internal objects to collide violently with the carriage and be damaged. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the existing technology and provide a double-track transport vehicle connection device which is not easy to cause damage and deformation of the connection device, has a longer service life, and is not easy to cause violent collision and damage to objects in the vehicle, thereby improving the operating efficiency and safety of the double-track transport vehicle.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A double-track transport vehicle connection device includes an elastic connection mechanism and two fixing mechanisms for fixed connection with the double-track transport vehicle. The elastic connection mechanism includes a shell, an elastic component arranged in the shell, and two connecting rods. The two connecting rods are movably arranged in the end walls at both ends of the shell. The ends of the two connecting rods extending outside the shell are respectively ball-connected with the two fixing mechanisms, and the ends extending into the shell are each provided with a limit block. The elastic component abuts between the limit blocks of the two connecting rods.

[0006] As a further improvement of the above technical solution:

[0007] The elastic component includes a cavity, an elastic member and two extrusion rods. The cavity is arranged in the outer shell. The two extrusion rods are movably arranged in the cavity walls at both ends of the cavity and respectively abut against the limit blocks of the two connecting rods. The elastic member is arranged in the cavity and abuts between the two extrusion rods.

[0008] A piston disc is provided at one end of the extrusion rod extending into the cavity. The cavity forms a sealed space between the piston discs of the two extrusion rods. The elastic member is located in the sealed space and abuts between the piston discs of the two extrusion rods.

[0009] A buffer airbag is provided between the limiting blocks of the two connecting rods and the cavity, and the buffer airbag is communicated with the sealed space.

[0010] The buffer airbag is arranged around the outer periphery of the extrusion rod.

[0011] The elastic member is a spring.

[0012] A boss is provided on one side of the piston disc facing the sealed space, and the end of the spring is sleeved outside the corresponding boss.

[0013] The shell and the cavity are both annular, and the outer peripheral wall of the cavity is fixed on the inner peripheral wall of the shell.

[0014] The fixing mechanism includes a fixing seat and a mounting hole provided on the fixing seat, and the connecting rod is connected to the corresponding fixing seat ball.

[0015] The fixing seat includes a U-shaped block and a sealing block. The sealing block is fixed on the open side of the U-shaped block. The two ends of the sealing block are respectively suspended on both sides of the sealing block to form wings. The mounting holes are provided on the wings. The bottom wall of the sealing block is connected to the corresponding connecting rod ball.

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] The double-track transport vehicle connection device of the present invention is used to connect adjacent double-track transport vehicles via the double-track transport vehicle connection device. Specifically, the two fixing mechanisms are respectively fixed to the two adjacent double-track transport vehicles. When an impact force is generated between the adjacent double-track transport vehicles and they approach each other, the two connecting rods are driven to retract into the interior of the housing. The elastic component absorbs a portion of the extrusion force of the impact, effectively alleviating the impact force between the adjacent double-track transport vehicles. This makes it less likely that the connection device will be damaged or deformed, thereby extending its service life. It is also less likely that objects inside the vehicles will be damaged by violent collisions, thereby improving the operational efficiency and safety of the double-track transport vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the double-track transport vehicle connecting device of the present utility model.

[0019] Figure 2 The utility model is a schematic cross-sectional structural diagram of the elastic connection mechanism of the double-track transport vehicle connection device.

[0020] The numbers in the figure represent:

[0021] 1. Housing; 11. End wall; 2. Elastic component; 21. Cavity; 211. Cavity wall; 22. Elastic member; 23. Extrusion rod; 24. Piston disc; 241. Boss; 3. Connecting rod; 4. Limit block; 5. Sealing space; 6. Cushioning airbag; 7. Fixing seat; 71. U-shaped block; 72. Sealing block; 721. Wing; 8. Mounting hole. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0025] In this utility model, unless otherwise specified or limited, the terms "assemble," "connect," "connect," "fix," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0026] Figure 1 and Figure 2An embodiment of the double-track transport vehicle connection device of the present invention is shown. The double-track transport vehicle connection device of this embodiment includes an elastic connection mechanism and two fixing mechanisms for fixed connection with the double-track transport vehicle. The elastic connection mechanism includes a shell 1, an elastic component 2 and two connecting rods 3 arranged in the shell 1. The two connecting rods 3 are movably arranged in the end walls 11 at both ends of the shell 1. The ends of the two connecting rods 3 extending outside the shell 1 are respectively ball-connected with the two fixing mechanisms, and the ends extending into the shell 1 are provided with limit blocks 4. The elastic component 2 is against the limit blocks 4 of the two connecting rods 3.

[0027] During use, adjacent double-track transport vehicles are connected via the double-track transport vehicle connection device. Specifically, the two fixing mechanisms are fixed to the two adjacent double-track transport vehicles. When an impact force is generated between the adjacent double-track transport vehicles and they approach each other, the two connecting rods 3 are driven to retract into the interior of the housing 1. The elastic component 2 absorbs part of the impact force, effectively alleviating the impact force between the adjacent double-track transport vehicles. This reduces the risk of damage and deformation to the connecting device, prolongs its service life, and reduces the risk of damage to objects inside the vehicles due to violent impact, thereby improving the operational efficiency and safety of the double-track transport vehicles.

[0028] Further, if Figure 2 As shown, in this embodiment, the elastic component 2 includes a cavity 21, an elastic member 22 and two extrusion rods 23. The cavity 21 is provided in the outer shell 1. The two extrusion rods 23 are movably provided in the cavity walls 211 at both ends of the cavity 21 and respectively abut against the limit blocks 4 of the two connecting rods 3. The elastic member 22 is provided in the cavity 21 and abuts between the two extrusion rods 23. The two extrusion rods 23 are movably provided in the cavity walls 211 at both ends of the cavity 21 and can move axially relative to the cavity 21. The connecting rod 3 is coaxially fixedly connected to its limit block 4. Under the limiting action of the limit block 4, it can play the role of pulling the outer shell 1 outward, even if the adjacent double-track transport vehicles have the effect of being pulled and moving forward synchronously. A central hole is provided in the middle of the cavity wall 211 for the extrusion rod 23 to movably pass through.

[0029] Furthermore, in this embodiment, a piston disc 24 is provided at one end of the extrusion rod 23 extending into the cavity 21. The cavity 21 forms a sealed space 5 between the piston discs 24 of the two extrusion rods 23. The elastic member 22 is located within the sealed space 5 and abuts between the piston discs 24 of the two extrusion rods 23. The sealed space 5 can generate air pressure, further enhancing the cushioning effect against impact forces.

[0030] Furthermore, in this embodiment, a buffer airbag 6 is provided between the limiting blocks 4 of the two connecting rods 3 and the cavity 21 , and the buffer airbag 6 is communicated with the sealed space 5 .

[0031] During use, adjacent double-track transport vehicles are connected via the double-track transport vehicle connection device. Specifically, the two fixing mechanisms are fixed to the two adjacent double-track transport vehicles. When an impact force is generated between the adjacent double-track transport vehicles and they approach each other, the two connecting rods 3 are driven to retract into the interior of the housing 1, and the elastic component 2 absorbs a portion of the impact force. At the same time, the sealed space 5 becomes smaller, and the gas inside enters the cushioning airbag 6, causing the cushioning airbag 6 to swell. The swollen cushioning airbag 6 supports the limit block 4, thereby absorbing the impact force of the squeeze a second time, further effectively alleviating the impact force between the two double-track transport vehicles.

[0032] Furthermore, in this embodiment, the cushioning airbag 6 is disposed around the outer circumference of the extrusion rod 23. Preferably, the cushioning airbag 6 is annular and is sleeved outside the extrusion rod 23.

[0033] Furthermore, in this embodiment, the elastic member 22 is a spring.

[0034] Furthermore, in this embodiment, a boss 241 is provided on the side of the piston disc 24 facing the sealed space 5 , and the end of the spring is sleeved outside the corresponding boss 241 to improve the stability of the spring.

[0035] Furthermore, in this embodiment, the housing 1 and cavity 21 are both annular, with the outer circumferential wall of the cavity 21 fixed to the inner circumferential wall of the housing 1. Preferably, the connecting rod 3, the extrusion rod 23, the housing 1, the cavity 21, and the spring are all coaxial. The stopper 4 is annular and sized to fit the inner circumferential wall of the housing 1. The piston disc 24 is annular and sized to fit the inner circumferential wall of the cavity 21.

[0036] Furthermore, in this embodiment, the fixing mechanism includes a fixing seat 7 and a mounting hole 8 provided on the fixing seat 7, and the connecting rod 3 is spherically connected to the corresponding fixing seat 7. During installation, the fixing seat 7 is fixed to the double-track transport vehicle by passing a bolt through the mounting hole 8.

[0037] Furthermore, in this embodiment, the fixing seat 7 includes a U-shaped block 71 and a sealing block 72. The sealing block 72 is fixed on the opening side of the U-shaped block 71. The two ends of the sealing block 72 are respectively suspended on both sides of the sealing block 72 to form wings 721. The mounting hole 8 is provided on the wing 721. The bottom wall of the sealing block 72 is connected to the corresponding connecting rod 3 ball.

[0038] Furthermore, in this embodiment, the double-track transport vehicle connection device has a symmetrical structure.

[0039] In this embodiment, the connecting rod 3 is connected to the fixing mechanism ball, which can be adjusted at multiple angles, thereby avoiding severe wear of the connecting device due to the angle change of the two double-track transport vehicles, and further helping to increase the service life.

[0040] Although the present invention has been disclosed above with reference to preferred embodiments, this is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the present invention, utilize the technical content disclosed above to make many possible changes and modifications to the present invention, or modify it into equivalent embodiments with equivalent variations. Therefore, any simple modifications, equivalent variations, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, should fall within the scope of protection of the present invention.

Claims

1. A double-track transport vehicle connection device, characterized in that: The invention comprises an elastic connection mechanism and two fixing mechanisms for fixedly connecting with a double-track transport vehicle, wherein the elastic connection mechanism comprises a shell (1), an elastic component (2) provided in the shell (1), and two connecting rods (3), wherein the two connecting rods (3) are movably arranged in end walls (11) at both ends of the shell (1), and the ends of the two connecting rods (3) extending out of the shell (1) are respectively ball-connected with the two fixing mechanisms, and the ends extending into the shell (1) are both provided with limit blocks (4), and the elastic component (2) abuts between the limit blocks (4) of the two connecting rods (3).

2. The double-track transport vehicle connection device according to claim 1, characterized in that: The elastic component (2) comprises a cavity (21), an elastic member (22) and two extrusion rods (23); the cavity (21) is arranged in the housing (1); the two extrusion rods (23) are movably arranged in the cavity walls (211) at both ends of the cavity (21) and respectively abut against the limit blocks (4) of the two connecting rods (3); the elastic member (22) is arranged in the cavity (21) and abuts between the two extrusion rods (23).

3. The double-track transport vehicle connection device according to claim 2, characterized in that: A piston disc (24) is provided at one end of the extrusion rod (23) extending into the cavity (21); the cavity (21) forms a sealed space (5) between the piston discs (24) of the two extrusion rods (23); and the elastic member (22) is located in the sealed space (5) and abuts between the piston discs (24) of the two extrusion rods (23).

4. The double-track transport vehicle connection device according to claim 3, characterized in that: A buffer airbag (6) is provided between the limiting blocks (4) of the two connecting rods (3) and the cavity (21), and the buffer airbag (6) is communicated with the sealed space (5).

5. The double-track transport vehicle connection device according to claim 4, characterized in that: The buffer airbag (6) is arranged around the outer circumference of the extrusion rod (23).

6. The double-track transport vehicle connection device according to claim 3, characterized in that: The elastic member (22) is a spring.

7. The double-track transport vehicle connection device according to claim 6, characterized in that: A boss (241) is provided on the side of the piston disc (24) facing the sealed space (5), and the end of the spring is sleeved outside the corresponding boss (241).

8. The double-track transport vehicle connection device according to claim 2, characterized in that: The shell (1) and the cavity (21) are both annular, and the outer peripheral wall of the cavity (21) is fixed to the inner peripheral wall of the shell (1).

9. The double-track transport vehicle connection device according to any one of claims 1 to 8, characterized in that: The fixing mechanism comprises a fixing seat (7) and a mounting hole (8) provided on the fixing seat (7), and the connecting rod (3) is spherically connected to the corresponding fixing seat (7).

10. The double-track transport vehicle connection device according to claim 9, characterized in that: The fixing seat (7) comprises a U-shaped block (71) and a sealing block (72), wherein the sealing block (72) is fixed to the opening side of the U-shaped block (71), and the two ends of the sealing block (72) are respectively cantilevered toward the two sides of the sealing block (72) to form wing portions (721), the mounting hole (8) is provided on the wing portions (721), and the bottom wall of the sealing block (72) is spherically connected to the corresponding connecting rod (3).

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