Truck tarpaulin supporting structure

Abstract

The invention discloses a truck tarpaulin supporting structure, which is characterized in that longitudinal tarpaulin supporting rods which are longitudinally designed, front and rear supporting parts of a truck box and the tops of bin bars on two sides of the truck box jointly form the truck longitudinal tarpaulin supporting structure, so that the compatibility of rapid covering of tarpaulin and loading and unloading of a side forklift is realized, and water accumulation is avoided through a ridge-shaped structure; the tarpaulin covering difficulty is obviously reduced, and the loading and unloading efficiency and the rainproof performance are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of tarpaulin supports for freight vehicles. In particular, aiming at the problems that the traditional horizontal tarpaulin support structure is difficult and time-consuming to operate when covering the tarpaulin, and is cumbersome and inefficient when loading and unloading large-sized goods, a tarpaulin support structure based on a longitudinal design is proposed. This structure breaks through the traditional fixed thinking and solves the problems existing in the traditional horizontal tarpaulin poles, such as low installation and removal efficiency, easy water accumulation at the top, and insufficient adaptability and flexibility in loading and unloading goods, through structural innovation. Background Art

[0002] In terms of the tarpaulin support method for flatbed trucks with side rails, after retrieval, there is no patent literature on the longitudinal tarpaulin support structure for flatbed trucks in the existing publicly available technologies. The traditional solutions are all based on the horizontal multi-pole tarpaulin support scheme, which has the following defects in the use process.

[0003] 1. Obstruction of the loading and unloading path affects the loading and unloading efficiency

[0004] The traditional horizontal tarpaulin poles are composed of horizontal rod bodies and insertion tubes, which span across the top of the carriage and are inserted into the preset insertion tubes on both sides of the side rails, making the top side rails unable to be opened. The forklift loading and unloading operations can only be carried out through the rear door. For goods that require side forklift operations, the tarpaulin poles need to be removed first and the side rails need to be opened before the operation can be carried out, resulting in a great reduction in the loading and unloading efficiency. The same is true for goods that require hoisting in the top space.

[0005] 2. Difficult and inefficient tarpaulin covering operation

[0006] The traditional horizontal tarpaulin poles need to be inserted one by one for more than 6 - 10 poles, which takes up to 20 - 30 minutes. During the process of covering the tarpaulin, the operator needs to overcome the gravity of the tarpaulin and the multiple obstructions of the tarpaulin poles. It is difficult or even impossible for a single person to complete the operation. Even if a single person can complete it, the time taken is also 20 - 40 minutes; when sudden rain occurs, the driver cannot quickly cover the tarpaulin, and the risk of the goods getting wet is extremely high.

[0007] 3. Easy water accumulation on the top of the tarpaulin

[0008] The horizontal tarpaulin poles form parallel horizontal intervals between the poles, and are prone to sag and form depressions under the action of rainwater and their own gravity, thus forming water pockets. If not drained in time, it is easy to cause rainwater leakage and wet the goods.

[0009] 4. Unable to perform outdoor operations when it rains

[0010] Since the vehicle is covered with a tarpaulin when it rains and the horizontal tarpaulin poles prevent the vehicle side rails from being opened, outdoor operations cannot be carried out. Summary of the Invention

[0011] The present invention solves the above problems through a longitudinal tarpaulin support structure. The core innovation points include:

[0012] 1. One or more longitudinal tarpaulin support rods (hereinafter referred to as longitudinal rods) are longitudinally arranged along the front and rear tops of the carriage. The longitudinal rods are connected to the front and rear support parts of the carriage (such as baffles, awning rods, and special support frames, etc.), and together with the support parts and the tops of the side railings on both sides of the carriage, they form a longitudinal tarpaulin support structure for the freight car.

[0013] 2. The connection and fixation method between the longitudinal rod and the front and rear support parts of the carriage is detachable. Common detachable methods include spring clip slots, buckles, inserting tubes, magnetic attraction, etc.

[0014] 3. The front and rear support parts of the carriage are generally the original front and rear awning rods or baffles of the vehicle. If some vehicles do not have front and rear awning rods or baffles, or the strength of the awning rods or baffles is not enough to firmly support the longitudinal rod and the tarpaulin, a special support frame can be set up separately to support the longitudinal rod and the tarpaulin. For this separately set special support frame, the upper rod of the support frame can be set as a horizontal straight rod, so that the longitudinal rod can be conveniently placed at any position on the rod body, or the longitudinal rod can be horizontally moved on the support frame according to needs, making the loading and unloading of goods more flexible.

[0015] 4. The length of the longitudinal rod can be fixed according to the length of the cargo box, or it can be telescopic and adjustable. The preferred solution is adjustable to facilitate adjusting the length of the longitudinal rod when the carriage is deformed for easy installation and disassembly; it can also make one longitudinal rod adapt to different vehicle lengths (such as 4.2 meters and 6.8 meters), increasing its versatility. Its telescopic adjustment methods include but are not limited to the following methods.

[0016] (1) Rotary / tread adjustment (similar to the adjustment method of screws and nuts);

[0017] (2) Sleeve adjustment (similar to the telescopic adjustment method of fishing rods);

[0018] (3) Clamp adjustment (similar to the adjustment method of a mop rod);

[0019] (4) Quick-release rod adjustment (similar to the adjustment method of the seat height of a shared bicycle);

[0020] The preferred method is a combination of a sleeve and a rotary knob. The sleeve is used to adjust the length of the longitudinal rod, and the rotary knob is used to loosen or fasten the sleeve.

[0021] 5. To meet the different requirements for the strength of the longitudinal rod due to different carriage lengths, for a longer side railing cargo box, if the strength of a single longitudinal rod cannot meet the requirement of supporting the tarpaulin, it can be solved by increasing the number of longitudinal rods. For example, 2 longitudinal rods are arranged side by side on the central axis of the cargo box or 3 longitudinal rods are symmetrically arranged. For the case of 3 or more longitudinal rods, it is necessary to ensure that the height of the longitudinal rods on both sides is lower than the height of the middle longitudinal rod, forming a roof-like shape, so as to facilitate quick drainage after covering the tarpaulin and prevent water from pooling.

[0022] 6. Another way to solve the problem of insufficient strength of the longitudinal rod when the length of the cargo box is too long is to set up special supporting vertical rods at appropriate positions on the bottom of the carriage (vertically below the longitudinal rod) to support the longitudinal rod. Such supporting vertical rods are independent components and one or more of them can be flexibly used according to needs.

[0023] 7. The material of the longitudinal rod of the present invention is not limited (such as high-strength plastic, aluminum alloy, carbon fiber, composite material, etc.), and the shape is not limited (round tube, square tube, special-shaped components are all acceptable), as long as it can meet the requirements of the tarpaulin load-bearing and lightweight requirements, and is convenient for the driver to install and disassemble. Beneficial effects

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. It can work outdoors when it rains, and the loading and unloading are compatible in all directions.

[0026] The longitudinal rod is arranged along the front and rear directions of the carriage and is not directly connected to the side railing. Therefore, the side railing can be opened without removing the tarpaulin (only need to untie the tarpaulin binding ropes), meeting the need for outdoor loading and unloading of goods when it rains.

[0027] When loading and unloading goods, the side railing of the carriage can be fully opened, and the forklift can directly fork and unload goods from the side. When it is necessary to load, unload or hoist goods from the top of the carriage, the longitudinal rod can be quickly removed or moved to one side to open the working space at the top of the carriage. In the comparative experiment, it takes about 30 minutes to remove all the tarpaulin rods in the traditional way, while the single longitudinal rod embodiment of the present invention only takes 2 - 5 minutes, greatly improving the work efficiency.

[0028] 2. The tarpaulin can be quickly covered, and the operation is convenient and labor-saving.

[0029] In the operation of covering the tarpaulin after the empty vehicle is equipped with the tarpaulin rods, in the traditional way, the driver needs to first place the folded tarpaulin on a transverse tarpaulin rod, and then stand outside the side railing and unfold the tarpaulin towards both ends of the carriage with one hand, and the other hand needs to hold the side railing to maintain body balance. During this process, the driver needs to overcome the gravity of the tarpaulin and the obstruction of each transverse tarpaulin rod. In the case of a heavy tarpaulin, this process is relatively difficult and often cannot be completed by one person. In the case where one person can complete it, it takes about 20 - 40 minutes.

[0030] In the present invention, when covering the tarpaulin, the driver first needs to horizontally unfold the folded tarpaulin and place it on the front end of the longitudinal rod. Then, the driver holds the tarpaulin and rolls it backward along the longitudinal rod to unfold it. During this process, the driver can operate with both hands while standing at the bottom of the carriage, or operate with one hand while standing inside the storage fence. Since the longitudinal rod bears most of the weight of the tarpaulin and the force is relatively uniform throughout the unfolding process, only one driver is required to complete the operation. After the longitudinal unfolding of the tarpaulin is completed, the driver only needs to tidy up the left and right sides of the tarpaulin outside the storage fence and then tie it tightly with ropes. The entire process only takes 5 - 10 minutes, saving time and effort.

[0031] 3. Fast drainage speed and no water pooling.

[0032] In the present invention, the tarpaulin is supported by a longitudinal tarpaulin support structure jointly formed by the longitudinal rod and the front and rear support parts of the carriage as well as the top of the left and right storage fences of the carriage, and is connected and tightened to the preset parts of the vehicle body through hooks, ropes, elastic bands, etc. The shape of the tarpaulin after covering is in the shape of a roof with a higher middle and lower sides, enabling rainwater to quickly drain to the ground, not causing water pooling, and reducing the risk of goods getting wet.

[0033] 4. Structural versatility.

[0034] Regarding the problem of insufficient support strength of a single longitudinal rod for a longer carriage, it can be solved by arranging two longitudinal rods in parallel or three longitudinal rods in a symmetric arrangement, or by additionally installing support vertical rods under the longitudinal rod. In this way, it can be adapted to vehicle models of different lengths, so the structure of the present invention has versatility.

[0035] 5. Great economic and social benefits.

[0036] Since the storage fence trucks have a huge market share, the popularization and implementation of the present invention not only play a role in reducing the work difficulty, improving the loading and unloading efficiency, and reducing the loss of goods for individual drivers, but also play a role in improving the overall production efficiency and reducing waste and loss for the whole society, thus generating great economic and social benefits. Brief Description of the Drawings

[0037] Figure 1 : Schematic diagram of the single longitudinal rod tarpaulin support structure of the cargo box

[0038] Figure 2 : Figure 1 Cross-sectional view at A in - Schematic diagram of the card slot with a spring card

[0039] Figure 3 : Figure 1 Enlarged schematic diagram at B in - Schematic diagram of the sleeve - type telescopic rod with a fastening knob

[0040] Figure 4 : Schematic diagram of the single longitudinal rod tarpaulin support structure of the cargo box with a special support frame and support vertical rods DETAILED DESCRIPTION

[0041] In order to make those skilled in the art better understand the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the scope of protection of the present invention.

[0042] Embodiment 1:

[0043] like Figure 1 As shown, the truck box is mainly composed of a front awning bar (1), a front cargo box board (2), a cargo box bottom board (3), a cargo fence (4), a side door (5), a rear door (6), a rear awning bar (7), and a column (8). The longitudinal rod (9) of the main component of the solution of the present invention is located in the middle position of the top of the front awning bar (1) and the rear awning bar (7). Figure 1 The state shown is a state where the right warehouse rail and the right door are closed, and the left warehouse rail (4) and the left door (5) are fully opened. It can be seen that in this state, the left cargo box is completely open and the left column has been removed, so that cargo loading and unloading and forklift operations can be easily carried out. If cargo lifting operations are required, the longitudinal rod (9) can also be easily removed (can be completed within 2-5 minutes) to carry out unobstructed lifting operations.

[0044] Attached Figure 2 and attached Figure 3 It is attached Figure 1 In this embodiment, the longitudinal rod (9) is connected to its supporting parts (1, 7) via a card slot with a spring card, as shown in the attached Figure 2 As shown, the card slot (10) with a cavity is connected to the longitudinal rod (9) as a whole, and the spring card (11) is fastened to the rod body in the card slot (10) by a fixing screw (12). The rear canopy rod (8) opens the spring card (11) through the card slot under the action of external force and enters the inner position of the spring sheet (11), and fixes the longitudinal rod (9) on the supporting part (7) under the action of elastic force and friction force. The fixing of the front end of the longitudinal rod is similar to this, so no separate figure description is given.

[0045] In this embodiment, the longitudinal rod (9) is designed to be retractable and adjustable. Figure 3As shown in the figure, the rod body part of the longitudinal rod (9) consists of two parts: an inner sleeve rod (13) and an outer sleeve rod (15). One end of the outer sleeve rod is provided with a threaded part with a slit (14) and a matching knob (16). When the knob (16) moves towards the port direction, the threaded part (14) will narrow the slit under the action of radial pressure, thereby increasing the radial pressure and friction force of the outer sleeve rod (15) on the inner sleeve rod (13), so as to fix the relative movement of the inner and outer sleeve rods and keep the length of the longitudinal rod fixed; conversely, when the knob (16) moves in the opposite direction of the port, the radial pressure of the knob (16) on the threaded part (14) will be reduced, and the slit on the threaded part (14) will return to its original state under the action of elastic force, reducing or eliminating the radial pressure and friction force of the outer sleeve rod (15) on the inner sleeve rod (13), enabling the inner and outer sleeve rods to move relative to each other, so that the length of the longitudinal rod can be conveniently adjusted.

[0046] Embodiment 2:

[0047] This embodiment is a partial replacement and improvement of Embodiment 1 to adapt to the situation where the truck carriage has no front and rear support parts (1, 8) and the carriage is too long, resulting in insufficient strength of the longitudinal rod (9). As Figure 4 shown, the front and rear support parts of the carriage are replaced by special support frames (17, 18), and their upper parts are designed as horizontal straight rods. At this time, the longitudinal rod (9) does not have to be placed at the midline position of the support frames (17, 18), but can be placed at any position on the support frames (17, 18) according to needs. In this way, the top space can be opened as much as possible without removing the longitudinal rod, facilitating loading and unloading operations. In addition, in this embodiment, a support vertical rod (19) is also provided below the middle position of the longitudinal rod to solve the problem of possible insufficient strength of the longitudinal rod (9) at long spans. In the attached Figure 4 figure, the part shown in (C) is similar to the part shown in (A) in the attached Figure 1 figure, and its cross-sectional schematic diagram refers to the attached Figure 2 , and the attached drawing description will not be repeated.

[0048] The above embodiments list the implementation methods of two single-longitudinal-rod schemes in the present invention, which have completely demonstrated the core content of the present invention, that is, a longitudinal tarpaulin support structure for a truck. For other contents mentioned in the invention content, such as other detachable connection methods between the longitudinal rod and the support part, such as inserting pipes, buckles, magnetic attraction, etc., as well as other telescopic adjustment methods of the longitudinal rod, such as clamps, quick-release rods, etc., and the implementation methods of double-longitudinal rods and multi-longitudinal rods, etc., for those skilled in the art, they can all be implemented according to the content of this specification using the existing technology without additional creative labor. Therefore, all new embodiments obtained by combining the above methods are within the protection scope of the present invention, and will not be elaborated one by one here.

Claims

1. A tarpaulin support structure for a freight truck, characterized in that, It includes at least one longitudinal tarpaulin support rod (hereinafter referred to as the longitudinal rod) longitudinally arranged along the front and rear tops of the carriage; the longitudinal rod is connected to the front and rear support parts of the carriage, and together with the front and rear support parts of the carriage and the tops of the side fences of the carriage, it constitutes a longitudinal tarpaulin support structure for the freight car.

2. The truck tarpaulin support structure according to claim 1, characterized in that, The connection mode between the longitudinal rod and the front and rear support parts of the carriage is detachable. Common detachable connection modes include, but are not limited to, the ways of spring piece card slots, buckles, inserting pipes, magnetic attraction, etc.

3. The support structure of a truck tarpaulin according to claim 1, wherein The front and rear support parts of the carriage include at least one of the front and rear awning rods of the carriage, baffles or special support frames.

4. A truck tarpaulin support structure according to claim 1, characterized in that, The longitudinal rod can be of a fixed length or of an adjustable length.

5. The truck tarpaulin support structure according to claim 4, characterized in that, For the longitudinally adjustable rod, the length adjustment methods include, but are not limited to, the ways of twisting, sleeves, clamps and quick-release rods, etc.

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