Limiting device for low flatbed semitrailer

Abstract

The utility model discloses a limiting device for a low flatbed semitrailer, and relates to the technical field of trailer tools. Cavity plates are fixedly connected to the two positions of the top face of the trolley plate, each cavity plate comprises a cavity opening, a notch is formed in the top face of each cavity plate, the bottom end of each notch extends into the corresponding cavity opening, a transverse rod is fixedly connected to the inner side wall of each cavity plate, a movable ring is arranged on the side wall of each transverse rod in a sleeved mode, and a threaded cylinder is fixedly connected to the side wall of each movable ring. A vertical column is detachably arranged on the end face of the threaded cylinder, a fastening sleeve is detachably arranged on the side wall of the vertical column, a protruding block is fixedly connected to the side wall of the fastening sleeve, a lifting bolt is in threaded connection with the face, back to the fastening sleeve, of the protruding block, a rope is tied to the side wall of the lifting bolt, a clamping rod is slidably connected to one face of the notch in a penetrating mode, and a clamping hole is formed in the other face of the notch. The clamping rod corresponds to and is matched with the clamping hole; the limiting device is good in practicability, and the limiting height of the two sides can be adjusted according to the height of an object.

Description

TECHNICAL FIELD

[0001] The utility model relates to a trailer appliance technical field, concretely is a low flat semi -trailer limiting device. BACKGROUND

[0002] Low flat semi -trailer usually transports heavy -duty car (such as tractor, bus, special -purpose car etc.), track vehicle, mining machinery, forestry machinery, engineering machinery (such as excavator, bulldozer, loader, road paver, crane etc.) and other heavy -duty goods, and its barycenter is lower, and the stability and safety are better, and the ability of transporting super -high goods and passing overhead barrier is stronger.

[0003] At present low flat semi -trailer limiting device can only be for the bottom contact part of the transportation product to limit, such as the public (announcement) number: CN222224001U low flat semi -trailer limiting device, including the connecting support bottom plate, the connecting support bottom plate both sides are slid and have clamping fixed block, the connecting support bottom plate top end fixed connection has a plurality of adjustment positioning seat, a plurality of adjustment positioning seat top end all slidably connected with vertical linkage block, the vertical linkage block top end slidably connected with locking block, the vertical linkage block inner side slidably connected with horizontal alignment block, the locking block is engaged in horizontal alignment block, the horizontal alignment block one side fixed connection has limiting ring, through the cooperation of adjustment positioning seat and horizontal alignment block etc.

[0004] Although the public (announcement) number: CN222224001U low flat semi -trailer limiting device can complete the limiting and fixing work of vehicle, and can freely adjust the limiting and fixing position according to the actual axle distance of vehicle etc., thereby reach the purpose of adapting different vehicles, but cannot adjust the height of two sides limiting according to the height of article, thereby will reduce the practicality, in view of the above problem, the inventor proposes a low flat semi -trailer limiting device for solving the above problem. UTILITY MODEL CONTENTS

[0005] In order to solve the problem that low flat semi -trailer limiting device cannot adjust the height of two sides limiting according to the height of article, thereby will reduce the practicality, the utility model aims at providing a low flat semi -trailer limiting device.

[0006] To solve the above technical problems, the utility model discloses the following technical scheme: A low flatbed semitrailer limiting device, including the vehicle board, the top surface of the vehicle board is fixedly connected with the cavity board in two places, the cavity board includes the cavity mouth, the top surface of the cavity board is provided with the recess, and the bottom end of the recess extends into the cavity mouth, the inner side wall of the cavity board is fixedly connected with the cross bar, the side wall of the cross bar is equipped with the movable ring, the side wall of the movable ring is fixedly connected with the threaded cylinder, the end surface of the threaded cylinder is detachably provided with the stand, the side wall of the stand is detachably provided with the fastening sleeve, the side wall of the fastening sleeve is fixedly connected with the lug, the lug is fixedly connected with the lifting ring screw on the side away from the fastening sleeve, the side wall of the lifting ring screw is tied with the rope, one side of the recess is slidably connected with the clamping rod, the other side of the recess is provided with the clamping hole, the clamping rod corresponds with the clamping hole and cooperates.

[0007] Preferably, the number of recesses is several, and the several recesses are arrayed, the size of the threaded cylinder matches the size of the recess, the bottom surface of the stand is fixedly connected with the threaded column, the threaded column corresponds with the threaded cylinder and cooperates, the movable ring can move on the cross bar to adjust the position of the movable ring to limit work at different positions according to requirements, when adjusting the position of the movable ring, the movable ring needs to correspond with the recess above it, after adjusting the movable ring, rotate the movable ring to make the threaded cylinder be in the corresponding recess above it, limit the threaded cylinder through the recess to avoid the movable ring moving forward and backward on the cross bar, then make the threaded column correspond with the threaded cylinder, screw the stand to make the threaded column cooperate with the threaded cylinder to install the stand.

[0008] Preferably, the end surface of the fastening sleeve is fixedly connected with the convex plate, the side wall of the convex plate is provided with the fastening bolt, and the side wall of the fastening bolt is threadedly connected with the nut, unscrew the nut to make the fastening sleeve move up and down on the stand to adjust the height of the lifting ring screw, then adjust the height of the rope to adjust the height of the limiting on both sides according to the height of the article to improve practicability, the inside of the cavity board is provided with the movable disc, one end of the clamping rod is fixedly connected with the side wall of the movable disc, the side wall of the clamping rod is fixedly connected with the handle, the top surface of the cavity board is provided with the slot, the handle is in the slot, and the handle cooperates with the slot, the side away from the clamping rod of the movable disc is fixedly connected with the spring, the end away from the movable disc of the spring is fixedly connected with the fixed disc, the fixed disc is fixedly connected with the inner wall of the cavity board, when the threaded cylinder needs to be in the recess, push the handle to make the clamping rod away from the recess until the clamping rod is retracted into the cavity board, at this time, the spring is in the compressed state, after the threaded cylinder is in the recess, release the handle to make the clamping rod return to the original position under the elastic force of the spring, at this time, the clamping rod is inserted into the clamping hole to limit the threaded cylinder to avoid the threaded cylinder rotating and affecting the limiting effect.

[0009] Compared with the prior art, the utility model discloses the beneficial effect lies in: good practicality can adjust the height of both sides limit according to the height of article, the height of the rope for setting limit can be adjusted, and the object on the car plate is limited according to demand, and the device is set at the top surface of the car plate two, does not need to occupy the car plate top space additionally, and convenient to dismount, when not needing to limit use, can dismantle the rope, and can dismantle the stand column, and can move the threaded cylinder back to the cavity mouth of the cavity plate, to keep the overall simplicity. BRIEF DESCRIPTION OF DRAWINGS

[0010] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will briefly introduce the drawing needed to be used in the embodiment or prior art description, obviously, the drawing in the following description is only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0011] Figure 1 It is the overall structure schematic diagram of the utility model.

[0012] Figure 2 It is the enlarged view of place A of the utility model.

[0013] Figure 3 It is the stand column and movable ring cooperation schematic diagram of the utility model.

[0014] Figure 4 It is the card rod structure schematic diagram of the utility model.

[0015] In the drawing: 1, car plate;2, cavity plate;3, cavity mouth;4, notch;5, cross rod;6, movable ring;7, threaded cylinder;8, stand column;9, threaded column;10, fastening sleeve;11, convex plate;12, fastening bolt;13, lug;14, lifting eye bolt;15, rope;16, slot;17, card hole;18, card rod;19, handle;20, movable disc;21, spring;22, fixed disc. DETAILED DESCRIPTION

[0016] The technical scheme in the embodiment of the utility model will be clearly and completely described in the following by combining the drawings in the embodiment of the utility model, obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment in the utility model, all other embodiments obtained by those skilled in the art without creating labor belong to the scope of protection of the utility model.

[0017] Embodiment: as Figures 1-4The utility model provides a limiting device for low flatbed semitrailer, including the vehicle board 1, the top surface both of vehicle board 1 are fixedly connected with cavity board 2, cavity board 2 includes cavity mouth 3, the top surface of cavity board 2 is provided with recess 4, and the bottom end of recess 4 extends into cavity mouth 3, the inboard wall of cavity board 2 is fixedly connected with cross bar 5, and the lateral wall of cross bar 5 is equipped with movable ring 6, and the lateral wall of movable ring 6 is fixedly connected with threaded cylinder 7, and the end surface of threaded cylinder 7 is detachably provided with stand 8, and the lateral wall of stand 8 is detachably provided with fastening sleeve 10, and the lateral wall of fastening sleeve 10 is fixedly connected with lug 13, and the lug 13 is threadedly connected with lifting ring screw 14 on the side away from fastening sleeve 10, and the lateral wall of lifting ring screw 14 is tied with rope 15, and one side of recess 4 is slidably connected with clamping rod 18, and the other side of recess 4 is provided with clamping hole 17, and clamping rod 18 corresponds with clamping hole 17 and cooperates.

[0018] The number of recesses 4 is several, and the several recesses 4 are arrayed, the size of threaded cylinder 7 cooperates with the size of recess 4, the bottom surface of stand 8 is fixedly connected with threaded column 9, and threaded column 9 corresponds with threaded cylinder 7 and cooperates.

[0019] By adopting the above technical scheme, the movable ring 6 can move on the cross bar 5 to adjust the position of the movable ring 6, so as to limit the work in different positions according to the requirement, when adjusting the position of the movable ring 6, the movable ring 6 needs to correspond to the recess 4 above it, after completing the adjustment of the movable ring 6, rotating the movable ring 6, so that the threaded cylinder 7 is placed in the corresponding recess 4 above it, limiting the threaded cylinder 7 through the recess 4, avoiding the movable ring 6 moving forward and backward on the cross bar 5, then, the threaded column 9 corresponds with the threaded cylinder 7, and the stand 8 is screwed, so that the threaded column 9 cooperates with the threaded cylinder 7, to install the stand 8.

[0020] The end surface of fastening sleeve 10 is fixedly connected with convex plate 11, the lateral wall of convex plate 11 is provided with fastening bolt 12, and the lateral wall of fastening bolt 12 is threadedly connected with nut.

[0021] By adopting the above technical scheme, the nut is loosened, so that the fastening sleeve 10 can move up and down on the stand 8 to adjust the height of the lifting ring screw 14, and then the height of the rope 15 can be adjusted, so that the height of the limiting on both sides can be adjusted according to the height of the article, to improve the practicability.

[0022] The inside of cavity board 2 is provided with movable disc 20, one end of clamping rod 18 is fixedly connected with the lateral wall of movable disc 20, the lateral wall of clamping rod 18 is fixedly connected with handle 19, the top surface of cavity board 2 is provided with slot 16, handle 19 is located in slot 16, and handle 19 cooperates with slot 16, the side away from clamping rod 18 of movable disc 20 is fixedly connected with spring 21, one end away from movable disc 20 of spring 21 is fixedly connected with fixed disc 22, and fixed disc 22 is fixedly connected with the inner wall of cavity board 2.

[0023] By adopting the above technical scheme, when the threaded cylinder 7 needs to be placed in the notch 4, the handle 19 is pushed to make the clamping rod 18 away from the notch 4 until the clamping rod 18 is retracted into the cavity plate 2, at this time, the spring 21 is in a compressed state, when the threaded cylinder 7 is placed in the notch 4, the handle 19 is released, and the clamping rod 18 is restored to the original position under the elastic force of the spring 21, at this time, the clamping rod 18 is inserted into the clamping hole 17 to limit the threaded cylinder 7, so as to avoid the rotation of the threaded cylinder 7 and affect the limiting effect.

[0024] Working principle: when the limiting operation is needed, the position of the movable ring 6 is adjusted to perform the limiting operation at different positions according to the requirements, and it should be noted that when the position of the movable ring 6 is adjusted, the movable ring 6 should be corresponded to the notch 4 above it.

[0025] After the adjustment of the movable ring 6 is completed, the handle 19 is pushed to make the clamping rod 18 away from the notch 4 until the clamping rod 18 is retracted into the cavity plate 2, at this time, the spring 21 is in a compressed state, when the threaded cylinder 7 is placed in the notch 4, then, the movable ring 6 is rotated to make the threaded cylinder 7 placed in the corresponding notch 4 above it, the threaded cylinder 7 is limited by the notch 4 to avoid the movable ring 6 moving forward and backward on the cross rod 5, and the handle 19 is released, so that the clamping rod 18 is restored to the original position under the elastic force of the spring 21, at this time, the clamping rod 18 is inserted into the clamping hole 17 to limit the threaded cylinder 7, so as to avoid the rotation of the threaded cylinder 7;

[0026] Then, the threaded column 9 is corresponded to the threaded cylinder 7, the column 8 is screwed to make the threaded column 9 cooperate with the threaded cylinder 7 to install the column 8, the nut is screwed to make the fastening sleeve 10 move up and down on the column 8 to adjust the height of the ring screw 14, and then the height of the rope 15 can be adjusted, so that the height of the limiting on both sides can be adjusted according to the height of the articles, and the practicability is improved.

[0027] Obviously, those skilled in the art can make various modifications and variations to the utility model without departing from the spirit and scope of the utility model. Thus, if these modifications and variations of the utility model belong to the scope of the utility model claims and their equivalent technologies, the utility model also intends to include these modifications and variations.

Claims

1. A limiting device for low flatbed semi-trailer, comprising a trailer plate (1), characterized in that: The top surface of the car plate (1) is fixedly connected with cavity plates (2), the cavity plate (2) comprises a cavity mouth (3), the top surface of the cavity plate (2) is provided with a notch (4), and the bottom end of the notch (4) extends into the cavity mouth (3), the inner side wall of the cavity plate (2) is fixedly connected with a cross bar (5), the side wall of the cross bar (5) is sleeved with a movable ring (6), the side wall of the movable ring (6) is fixedly connected with a threaded cylinder (7), the end surface of the threaded cylinder (7) is detachably provided with a stand column (8), the side wall of the stand column (8) is detachably provided with a fastening sleeve (10), the side wall of the fastening sleeve (10) is fixedly connected with a protruding block (13), one side of the protruding block (13) away from the fastening sleeve (10) is threadedly connected with a lifting ring screw (14), the side wall of the lifting ring screw (14) is tied with a rope (15), one side of the notch (4) is slidably connected with a clamping rod (18), the other side of the notch (4) is provided with a clamping hole (17), the clamping rod (18) corresponds to and cooperates with the clamping hole (17).

2. The low flatbed semi-trailer limiting device of claim 1, wherein, The number of the notch (4) is several, and the several notches (4) are arrayed, the size of the threaded cylinder (7) is matched with the size of the notch (4).

3. The low flatbed semi-trailer limiting device of claim 1, wherein, The bottom surface of the stand column (8) is fixedly connected with a threaded column (9), the threaded column (9) corresponds to and cooperates with the threaded cylinder (7).

4. The low-profile trailer limiting device of claim 1, wherein, The end surface of the fastening sleeve (10) is fixedly connected with a protruding plate (11), the side wall of the protruding plate (11) is detachably provided with a fastening bolt (12), and the side wall of the fastening bolt (12) is threadedly connected with a nut.

5. The low-profile trailer limiting device of claim 1, wherein, The inside of the cavity plate (2) is provided with a movable disc (20), one end of the clamping rod (18) is fixedly connected with the side wall of the movable disc (20).

6. A low flatbed semi-trailer limiting device as claimed in claim 5, characterized in that, The side wall of the clamping rod (18) is fixedly connected with a handle (19), the top surface of the cavity plate (2) is provided with a slot (16), the handle (19) is located in the slot (16), and the handle (19) cooperates with the slot (16).

7. The low-profile trailer limiting device of claim 5, wherein, One side of the movable disc (20) away from the clamping rod (18) is fixedly connected with a spring (21), one end of the spring (21) away from the movable disc (20) is fixedly connected with a fixed disc (22), and the fixed disc (22) is fixedly connected with the inner wall of the cavity plate (2).

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