A sling dragboard car outer extension pull rod device

Abstract

The utility model belongs to transportation frock equipment technical field provides a kind of sling tow plate car external extension pull rod device, including first pull rod piece, second pull rod piece, mobile base assembly and damping component.The second connecting portion of the present application is connected with the sling tow plate car, the first connecting portion is connected with the external power source, for example, forklift or trailer, so that the area of the sling covering the tow plate car is extended in length, and the first connecting portion and the second connecting portion are provided, which can facilitate the connection with the external power source, and the damping component is also provided, which increases the shock resistance of the entire structure during movement and improves the use strength of the structure.

Description

Technical Field

[0001] This utility model belongs to the technical field of transportation tooling equipment, specifically relating to an external extension rod device for a spreader trailer. Background Technology

[0002] When a spreader malfunction occurs during container loading and unloading operations and cannot be resolved immediately, the usual approach is to directly replace it with a spare spreader to ensure the continuation of on-site operations. The malfunctioning spreader is then transported by flatbed truck to a rear spreader repair workshop for maintenance. One type of spreader malfunction involves a failure of the spreader hydraulic pump (or a damaged motor coupling), preventing the spreader from retracting to 20 feet. Traditional spreader flatbed trucks are only suitable for loading 20-foot spreaders and are therefore unsuitable for handling such malfunctions.

[0003] Terminal operational efficiency is crucial for terminal operations. When a 40 / 45-foot spreader malfunctions and cannot be resolved, the faulty spreader should be quickly replaced and towed away from the site to avoid disrupting operations. Terminal operational efficiency heavily relies on the rapid turnaround of spreaders. If a 40 / 45-foot spreader malfunctions and cannot be retracted, failure to remove it from the site promptly will directly lead to operational interruptions and even delays in shipping schedules, resulting in significant economic losses. Existing flatbed trailers for transporting extra-long spreaders present the following problems: 1. Insufficient adaptability: When spreading equipment is transferred between different areas of the dock, the traditional flatbed truck is only compatible with 20-foot spreading equipment, which cannot meet the transportation needs of extra-long spreading equipment.

[0004] 2. Poor stability: Traditional temporary solutions often involve simple binding and adding soft connectors, which cannot fundamentally solve the problems of stability and precise control. Temporary binding is prone to loosening, causing the lifting equipment to shift or slip during transportation, threatening the safety of personnel and equipment.

[0005] 3. Difficult to operate: The weight of the spreader and the trailer is too great, making it difficult to achieve precise operation with the existing connection method. Utility Model Content

[0006] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of this utility model is to provide an external extension rod device for a spreader trailer.

[0007] The technical solution adopted by this utility model to solve its technical problem is: An external extension rod device for a spreader trailer includes a first rod member, a second rod member, a movable base assembly, and a shock absorption assembly; One end of the first pull rod is connected to one end of the second pull rod, the bottom of the second pull rod is rotatably engaged with the movable base assembly, and the shock absorption component is located at the rotatable engagement point between the second pull rod and the movable base assembly; The first tie rod has a first connecting part at one end, and the second tie rod has a second connecting part at the other end.

[0008] Preferably, the first connecting part includes a first connecting plate, and the first connecting plate is provided with a first connecting hole.

[0009] Preferably, the end of the first connecting plate away from the first tie rod is semi-circular.

[0010] Preferably, the second connecting part includes two parallel second connecting plates, each with a second connecting hole and a connecting bolt. The connecting bolt and the other end of the second connecting plate and the second tie rod form a groove.

[0011] Preferably, the end of the second connecting plate away from the second tie rod is semi-circular.

[0012] Preferably, the movable base assembly includes a base body and rollers, with the rollers symmetrically arranged on both sides of the base body.

[0013] Preferably, the base body is provided with a first rotating seat, the bottom of the second tie rod is provided with a second rotating seat, the first rotating seat and the second rotating seat are hinged together, and the shock absorption component is provided between the first rotating seat and the second rotating seat.

[0014] Preferably, the shock absorption assembly includes a shock absorption spring and a shock absorption guide rod, one end of the shock absorption guide rod is connected to the second rotating seat, and the shock absorption spring is sleeved on the shock absorption guide rod and abuts against the first rotating seat.

[0015] Preferably, the first rotating seat is provided with a first connecting column, the second rotating seat is provided with a second connecting column, the first connecting column is provided with a guide plate that rotates with it, the guide plate is provided with a guide groove, and the guide groove is movably engaged with the second connecting column.

[0016] Preferably, a connecting reinforcement assembly is provided between one end of the first tie rod and one end of the second tie rod. The connecting reinforcement assembly includes a first connecting reinforcement plate and a second connecting reinforcement plate. There are two or more first connecting reinforcement plates arranged in parallel. The two ends of the first connecting reinforcement plates are respectively connected to the first tie rod and the second tie rod. The second connecting reinforcement plate is provided on both sides of the first tie rod and the second tie rod and is connected to the first connecting reinforcement plate. The second connecting reinforcement plate is provided with a groove portion that cooperates with the first tie rod and the second tie rod.

[0017] Compared with the prior art, the beneficial effects of this utility model include: The external extension rod device of this application addresses the problem that long-sized spreaders cannot be retracted to their original size due to malfunctions, thus preventing them from being towed away from the site by a trailer. Its second connecting part connects to the spreader trailer, and the first connecting part connects to an external power source, such as a forklift or trailer. This extends the area covered by the spreader on the trailer. The first and second connecting parts facilitate connection to an external power source. Furthermore, a shock-absorbing component is included to increase the seismic resistance of the entire structure during movement and improve the structural strength. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a structural schematic diagram of the present invention from the front view. Figure 2 This is a three-dimensional structural diagram of the present invention; Figure 3 This is a partial exploded view of the connection between the first tie rod and the second tie rod of this utility model.

[0020] in: 1. First tie rod; 2. Second tie rod; 3. First connecting plate; 4. First connecting hole; 5. Second connecting plate; 6. Connecting bolt; 7. Slot; 8. Base body; 9. Roller; 10. First rotating seat; 11. Second rotating seat; 12. Shock-absorbing spring; 13. Shock-absorbing guide rod; 14. First connecting column; 15. Second connecting column; 16. Guide plate; 17. Guide groove; 18. First connecting reinforcement plate; 19. Second connecting reinforcement plate; 20. Groove. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, it will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. Many specific details are set forth in the following description to provide a thorough understanding of this utility model; the described embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0023] Example: like Figure 1-3 As shown, this embodiment provides an external extension rod device for a spreader trailer, including a first rod 1, a second rod 2, a movable base assembly, and a shock absorption assembly; One end of the first tie rod 1 is connected to one end of the second tie rod 2. The bottom of the second tie rod 2 is rotatably engaged with the movable base assembly. The shock absorption component is located at the rotatable engagement point between the second tie rod 2 and the movable base assembly. The other end of the first tie rod 1 is provided with a first connecting part, and the other end of the second tie rod 2 is provided with a second connecting part.

[0024] The external extension rod device in this embodiment addresses the problem of long-sized lifting devices being unable to retract to their original size due to malfunctions, thus preventing their removal from the site by a trailer. Its second connecting part connects to the lifting device trailer, while the first connecting part connects to an external power source, such as a forklift or trailer. This extends the area covered by the lifting device on the trailer. The first and second connecting parts facilitate connection to an external power source. Furthermore, a shock-absorbing component is included to increase the overall structure's seismic resistance during movement and enhance its structural strength.

[0025] In this embodiment, the specific structures of the first connecting part and the second connecting part are as follows: The first connecting part includes a first connecting plate 3, and the first connecting plate 3 is provided with a first connecting hole 4.

[0026] Specifically, the end of the first connecting plate 3 away from the first tie rod 1 is semi-circular.

[0027] Specifically, the second connecting part includes two parallel second connecting plates 5, each with a second connecting hole and a connecting bolt 6. The connecting bolt 6 forms a groove 7 between itself and the other end of the second connecting plate 5 and the second tie rod 2.

[0028] Specifically, the end of the second connecting plate 5 away from the second tie rod 2 is semi-circular.

[0029] In the above structure, the first connecting part can be adapted to a universal connector for trailer or forklift rear attachment points to ensure accurate connection. The second connecting part has a connecting bolt 6 and a slot 7, which can be quickly matched and locked with the connecting seat of the trailer front attachment point to form a double connection guarantee effect and prevent loosening.

[0030] The movable base assembly of this embodiment includes a base body 8 and roller components 9, which are symmetrically arranged on both sides of the base body 8. The roller components 9 have a wheel diameter of 300mm and are made of wear-resistant hard solid rubber. The above-mentioned side allows the operator to push the external extension rod device, reducing the intensity of manual handling.

[0031] In this embodiment, the specific structure for the bottom of the second tie rod 2 to rotate with the movable base assembly is as follows: A first rotating seat 10 is provided on the base body 8, and a second rotating seat 11 is provided at the bottom of the second tie rod 2. The first rotating seat 10 and the second rotating seat 11 are hinged together, and the shock absorption component is provided between the first rotating seat 10 and the second rotating seat 11.

[0032] Meanwhile, the shock absorption assembly includes a shock absorption spring 12 and a shock absorption guide rod 13. One end of the shock absorption guide rod 13 is connected to the second rotating seat 11, and the shock absorption spring 12 is sleeved on the shock absorption guide rod 13 and abuts against the first rotating seat 10.

[0033] Specifically, the first rotating seat 10 is provided with a first connecting post 14, the second rotating seat 11 is provided with a second connecting post 15, the first connecting post 14 is provided with a guide plate 16 that rotates with it, the guide plate 16 is provided with a guide groove 17, and the guide groove 17 is movably engaged with the second connecting post 15.

[0034] The structure of the above-described shock-absorbing components, when the external extension tie rod device is connected to an external power source and a lifting trailer for towing, enhances the shock absorption and buffering effect when the first tie rod 1 and the second tie rod 2 rotate relative to the moving base assembly, thereby increasing the overall seismic resistance of the structure during movement and improving its structural strength. Simultaneously, the structure of the guide plate 16 and the first connecting column 14 and the second connecting column 15 further increases the stability of the first tie rod 1 and the second tie rod 2 during rotation relative to the moving base assembly.

[0035] In this embodiment, the connection structure between the first tie rod 1 and the second tie rod 2 has been reinforced, as detailed below: A connecting reinforcement assembly is provided between one end of the first tie rod 1 and one end of the second tie rod 2. The connecting reinforcement assembly includes a first connecting reinforcement plate 18 and a second connecting reinforcement plate 19. There are two or more first connecting reinforcement plates 18 arranged in parallel. The two ends of the first connecting reinforcement plates 18 are respectively connected to the first tie rod 1 and the second tie rod 2. Specifically, this can be done by welding. The second connecting reinforcement plate 19 is provided on both sides of the first tie rod 1 and the second tie rod 2 and is connected to the first connecting reinforcement plate 18. The second connecting reinforcement plate 19 is provided with a groove 20 that cooperates with the first tie rod 1 and the second tie rod 2. The groove 20 can also be connected to the first tie rod 1 and the second tie rod 2 by welding. The above structure can enhance the bending resistance and improve the structural strength of the entire device.

[0036] In summary, the structural design of this application is reasonable and the structure is stable, which can meet the elongation compensation requirements of long-sized lifting devices and facilitate the connection operation by the operator.

[0037] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A device for attaching an external extension rod to a spreader trailer, characterized in that, Includes a first tie rod, a second tie rod, a movable base assembly, and a shock-absorbing assembly; One end of the first pull rod is connected to one end of the second pull rod, the bottom of the second pull rod is rotatably engaged with the movable base assembly, and the shock absorption assembly is located at the rotatable engagement point between the second pull rod and the movable base assembly; The first tie rod has a first connecting part at one end, and the second tie rod has a second connecting part at the other end.

2. The external extension rod device for the spreader trailer according to claim 1, characterized in that, The first connecting part includes a first connecting plate, and the first connecting plate is provided with a first connecting hole.

3. The external extension rod device for the spreader trailer according to claim 2, characterized in that, The end of the first connecting plate away from the first tie rod is semi-circular.

4. The external extension rod device for the spreader trailer according to claim 1, characterized in that, The second connecting part includes two parallel second connecting plates. The second connecting plates are provided with second connecting holes. The second connecting holes are provided with connecting bolts. The connecting bolts form a groove with the other end of the second connecting plates and the second tie rod.

5. The external extension rod device for the spreader trailer according to claim 4, characterized in that, The end of the second connecting plate away from the second tie rod is semi-circular.

6. The external extension rod device for the spreader trailer according to claim 1, characterized in that, The movable base assembly includes a base body and rollers, with the rollers symmetrically arranged on both sides of the base body.

7. The external extension rod device for the spreader trailer according to claim 6, characterized in that, The base body is provided with a first rotating seat, and the bottom of the second tie rod is provided with a second rotating seat. The first rotating seat and the second rotating seat are hinged together, and the shock absorption component is located between the first rotating seat and the second rotating seat.

8. The external extension rod device for the spreader trailer according to claim 7, characterized in that, The shock absorption assembly includes a shock absorption spring and a shock absorption guide rod. One end of the shock absorption guide rod is connected to the second rotating seat, and the shock absorption spring is sleeved on the shock absorption guide rod and abuts against the first rotating seat.

9. The external extension rod device for the spreader trailer according to claim 7, characterized in that, The first rotating seat is provided with a first connecting column, the second rotating seat is provided with a second connecting column, the first connecting column is provided with a guide plate that rotates with it, the guide plate is provided with a guide groove, and the guide groove is movably engaged with the second connecting column.

10. The external extension rod device for the spreader trailer according to claim 1, characterized in that, A connecting reinforcement assembly is provided between one end of the first tie rod and one end of the second tie rod. The connecting reinforcement assembly includes a first connecting reinforcement plate and a second connecting reinforcement plate. There are two or more first connecting reinforcement plates arranged in parallel. The two ends of the first connecting reinforcement plates are respectively connected to the first tie rod and the second tie rod. The second connecting reinforcement plate is provided on both sides of the first tie rod and the second tie rod and is connected to the first connecting reinforcement plate. The second connecting reinforcement plate is provided with a groove that cooperates with the first tie rod and the second tie rod.

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