Tarpaulin tensioning device
By designing a semi-trailer tarpaulin tensioning device with a fixed plate, tensioning mechanism, and spacing adjustment mechanism, the problems of tarpaulin swaying and wear were solved, achieving uniform tension and efficient operation, thus improving work efficiency and the service life of the tarpaulin.
Patent Information
- Application Number
- CN202520748880.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-04-21
AI Technical Summary
Existing semi-trailer tarpaulins are difficult to tension effectively during use, are prone to shaking and wear, are cumbersome to operate, and affect cargo stability and work efficiency.
A tarpaulin tensioning device was designed, comprising a fixing plate, a tensioning mechanism, a winding motor, a ratchet locking assembly, and a spacing adjustment mechanism. The device uses a motor to drive the winding disc to wind up the pull rope, combined with ratchet locking and rope knot limiting, to achieve uniform tension of the tarpaulin. The spacing adjustment mechanism adjusts the spacing of the fixing plate to accommodate tarpaulins of different lengths.
It achieves uniform tension of the tarpaulin, reduces swaying and wear, improves operational efficiency, extends the service life of the tarpaulin, and ensures the stability of the goods.
Smart Images
Figure CN223904957U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the field of vehicle transportation relates to a tarpaulin tensioning device. BACKGROUND
[0002] In the process of transporting goods by a semitrailer, in order to protect the goods from the influence of external factors such as wind and rain, dust, etc., a tarpaulin is usually covered above the goods of the semitrailer. However, the existing tarpaulin of the semitrailer has some problems in the process of use. For example, the tarpaulin is difficult to be effectively tensioned after being covered, and is easy to sway and beat during driving due to the action of wind, which not only causes the tarpaulin to wear out quickly, shortens the service life of the tarpaulin, but also may affect the stability of the goods, and even in the extreme case, the tarpaulin loosening may cause the goods to be exposed, which has a safety hazard. In addition, the existing tarpaulin tensioning mode is complicated to operate, which needs to consume a lot of time and manpower, and reduces the work efficiency. Therefore, there is an urgent need for a semitrailer tarpaulin tensioning device which can effectively solve the above problems. SUMMARY
[0003] The utility model aims at providing a semitrailer tarpaulin tensioning device which can conveniently and quickly tension the tarpaulin, improve the tensioning effect of the tarpaulin, reduce the sway and wear of the tarpaulin during driving, and at the same time, is simple to operate and improves the work efficiency.
[0004] To solve the above technical problems, the utility model provides a tarpaulin tensioning device, which comprises a fixed plate fixed on one side of a semitrailer compartment, a plurality of box bodies are uniformly arranged on one side of the fixed plate along the length direction of the compartment, a tensioning mechanism is arranged on the box body, the tensioning mechanism comprises a pull rope, the top end of the pull rope is fixedly connected with a tarpaulin, one side of the fixed plate is provided with four fixed holes.
[0005] The utility model is further provided with the tensioning mechanism further comprising a winding motor fixedly connected to the front side of the box body, a rotating shaft is fixedly connected to the output shaft of the winding motor, a winding disc is fixedly sleeved to the outer side of the rotating shaft, the pull rope is wound on the outer side of the winding disc, the top end of the pull rope is fixedly connected with a hanging ring, a plurality of hanging rings are fixedly connected to the bottom of the tarpaulin, and a locking assembly is arranged between the rotating shaft and the box body.
[0006] The utility model is further provided with the locking assembly comprising a ratchet fixedly sleeved to the outer side of the rotating shaft and a return spring fixedly connected to the inner wall of the bottom of the box body, the top end of the return spring is fixedly connected with a clamping block, the clamping block is movably clamped between the tooth gaps of the ratchet, and the bottom of the clamping block is fixedly connected with a pull rod.
[0007] The utility model is further provided with the pull rod extending to the bottom of the box body at the low end and fixedly connected with a pull ring.
[0008] The utility model further sets up, the reset spring cover is connected to the outside of pull rod.
[0009] The utility model further sets up, be provided with the knot on the pull rope, the knot cooperate with the top of box body.
[0010] The utility model further sets up, the top of box body is set up with the limiting hole, the pull rope sliding cover is set in the limiting hole.
[0011] The utility model further sets up, the spacing adjustment mechanism includes the sliding slot of setting up in the one side of fixed plate and the screw sleeve of fixed connection in the top of fixed plate, the recess is set up on the top inner wall of sliding slot, the screw sleeve is screw sleeve set in the lifting screw, the low end of lifting screw is rotatably connected with the pressing plate, the bottom fixed connection of pressing plate has the antiskid rubber pad, the antiskid rubber pad swingly abuts in the top of multiple sliding blocks, multiple sliding blocks are all sliding cover set in the sliding slot.
[0012] The utility model further sets up, the top fixed connection of lifting screw has hand wheel, the top fixed connection of pressing plate has bearing, lifting screw fixed cover is set in the inner ring of bearing.
[0013] The utility model further sets up, the top of fixed plate slidingly is provided with two limit rods, and two limit rods are all fixedly connected in the top of pressing plate.
[0014] Compared with prior art, the utility model provides a kind of tarpaulin tensioning device, the fixed plate in two this device is respectively installed in the both sides of semitrailer compartment, according to the length of tarpaulin, need to adjust the spacing between multiple box and tensioning mechanism, so as to better tension tarpaulin, to facilitate adjustment and fixed, by rotating lifting screw by hand wheel, under the action of screw sleeve, lifting screw moves up and drives the upward movement of pressing plate and antiskid rubber pad without fixing multiple sliding blocks, the position of multiple box can be adjusted at this time, and then the spacing between two tensioning mechanisms can be adjusted, when adjusting, in reverse rotating lifting screw, so that lifting screw drives pressing plate and antiskid rubber pad firmly extrude in the top of multiple sliding blocks, and then the box can be locked.
[0015] Compared with the prior art, the utility model provides a tarpaulin tensioner, after fixing, the top end of the pull rope is tied on the hanging ring to the right, when tensioning, the winding motor is started, the winding motor drives the clockwise rotation of the rotating shaft and the winding disc, the inclined surface of the ratchet and the clamping block abuts, and then when rotating, the ratchet can automatically extrude the clamping block to move downward, and then the clockwise rotation of the rotating shaft and the winding disc is not hindered, the winding disc can wind the pull rope, when the knot abuts the top of the box, it indicates that the tarpaulin has been tensioned, avoids the over tensioning leading to tarpaulin damage due to continuing winding, closes the winding motor at this moment, the straight surface of the ratchet and the clamping block on one side abuts, effectively prevents the reverse rotation of the ratchet, and then the purpose of locking the pull rope is achieved, avoids the situation that the tarpaulin is relaxed due to the reverse rotation of the winding disc and the release of the pull rope.
[0016] Compared with the prior art, the utility model provides a tarpaulin tensioner, according to the length of tarpaulin, the spacing between multiple tensioning mechanisms is adjusted, so that the tarpaulin is more uniformly tensioned, the tensioning effect of the tarpaulin is improved, through the tensioning mechanism, manpower and time can be greatly saved, and the working efficiency is improved, through the limiting of the knot, the situation that the tarpaulin is excessively tensioned or not tensioned enough is avoided, and the service life of the tarpaulin is prolonged. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is a first perspective view of a tarpaulin tensioner provided by the utility model;
[0018] Figure 2 It is a second perspective view of a tarpaulin tensioner provided by the utility model;
[0019] Figure 3 It is a sectional view of a tarpaulin tensioner provided by the utility model;
[0020] Figure 4 It is Figure 3 It is an enlarged view of part A.
[0021] 1, fixed plate, 2, fixed hole, 3, spacing adjustment mechanism, 4, box, 5, tensioning mechanism, 6, tarpaulin, 30, sliding groove, 31, limiting rod, 32, hand wheel, 33, threaded sleeve, 34, lifting screw, 35, recess, 36, bearing, 37, pressing plate, 38, antiskid rubber pad, 39, sliding block, 501, hanging ring, 502, pull rope, 503, knot, 504, winding motor, 505, rotating shaft, 506, winding disc, 507, ratchet, 508, pull rod, 509, pull ring, 510, limiting hole, 511, return spring, 512, clamping block. DETAILED DESCRIPTION
[0022] The utility model provides a tarpaulin tensioning device makes further detailed instructions below combining with the drawings and specific embodiment. According to the following description, the advantages and characteristics of the utility model will be more clear. It should be noted that the drawings are all very simplified form and all use non-precise scale, only to facilitate, clear and assist the purpose of explaining the utility model embodiment. The same or similar reference signs in the drawings represent the same or similar parts.
[0023] Referring to Figures 1-4 The utility model provides a tarpaulin tensioning device, including the fixed plate 1 of fixed in the semitrailer compartment one side, the fixed plate 1 one side is evenly provided with a plurality of box 4 along the length direction of compartment, be provided with tensioning mechanism 5 on box 4, tensioning mechanism 5 includes pull rope 502, the top end fixed connection of pull rope 502 has tarpaulin 6, the one side fixed connection of box 4 has sliding block 39, the spacing adjusting mechanism 3 between fixed plate 1 and a plurality of sliding blocks 39 is provided, the one side of fixed plate 1 is provided with four fixed holes 2.
[0024] Further, referring to Figures 1-3 Tensioning mechanism 5 still includes the winding motor 504 of fixed connection in the front side of box 4, the output shaft fixed connection of winding motor 504 has the rotating shaft 505, the rotating shaft 505 outside fixed sleeve has winding disc 506, pull rope 502 is around the outside of winding disc 506, the top end fixed connection of pull rope 502 has the ring 501, a plurality of ring 501 fixed connection are at the bottom of tarpaulin 6, the locking assembly between rotating shaft 505 and box 4 is provided, and the locking assembly includes the ratchet wheel 507 of fixed sleeve in the rotating shaft 505 outside and the reset spring 511 of fixed connection on the bottom inner wall of box 4, the top end fixed connection of reset spring 511 has the clamping block 512, and the clamping block 512 is movably connected between the tooth gap of ratchet wheel 507, and the bottom fixed connection of clamping block 512 has the pull rod 508.
[0025] Adopt the above scheme: the top end of pull rope 502 is tied to the right ring 501, when tensioning, start winding motor 504, winding motor 504 drives the clockwise rotation of rotating shaft 505 and winding disc 506, and the inclined surface of ratchet wheel 507 and clamping block 512 abuts, and then when rotating, ratchet wheel 507 can automatically extrude clamping block 512 to move downward, and then do not hinder the clockwise rotation of rotating shaft 505 and winding disc 506, winding disc 506 can wind pull rope 502, when the top of knot 503 and box 4 abuts, it indicates that tarpaulin 6 has been tensioned, avoid over-tightening caused by continuing to wind and damage tarpaulin 6, at this moment, close winding motor 504, the straight surface of one side of ratchet wheel 507 and clamping block 512 abuts, effectively prevent the reverse rotation of ratchet wheel 507, and then achieve the purpose of locking pull rope 502, avoid the situation that winding disc 506 reverses and releases pull rope 502, leading to the relaxation of tarpaulin 6.
[0026] Further, the low end of the pull rod 508 extends to the bottom of the box body 4 and is fixedly connected with a pull ring 509, and the reset spring 511 is sleeved on the outer side of the pull rod 508, which is convenient for guiding the reset spring 511 and facilitating pulling the pull rod 508.
[0027] Further, the pull rope 502 is provided with a knot 503, which cooperates with the top of the box body 4. Through the arrangement of the knot 503, the position of the pull rope 502 can be limited to avoid excessive tension caused by continuous winding and damage to the tarpaulin 6.
[0028] Further, the top of the box body 4 is provided with a limiting hole 510, and the pull rope 502 is slidably sleeved in the limiting hole 510, which is convenient for guiding the pull rope 502 and making it move more stably and smoothly.
[0029] Further, referring to Figures 1-4 , the spacing adjusting mechanism 3 comprises a sliding groove 30 opened on one side of the fixed plate 1 and a threaded sleeve 33 fixedly connected to the top of the fixed plate 1. A groove 35 is opened on the inner wall of the top of the sliding groove 30. A lifting lead screw 34 is threadedly sleeved in the threaded sleeve 33. A pressing plate 37 is rotatably connected to the low end of the lifting lead screw 34. A non-slip rubber pad 38 is fixedly connected to the bottom of the pressing plate 37. The non-slip rubber pad 38 is movably abutted on the top of a plurality of sliding blocks 39. The plurality of sliding blocks 39 are slidably sleeved in the sliding groove 30.
[0030] The above scheme is adopted: the two fixed plates 1 of the device are respectively installed on the two sides of the semitrailer compartment. According to the length of the tarpaulin 6, the spacing between the plurality of box bodies 4 and the tensioning mechanism 5 needs to be adjusted to better tension the tarpaulin 6. In order to facilitate adjustment and fixation, the lifting lead screw 34 is rotated by the hand wheel 32. Under the action of the threaded sleeve 33, the lifting lead screw 34 moves upward and drives the pressing plate 37 and the non-slip rubber pad 38 to move upward without fixing the plurality of sliding blocks 39. At this time, the positions of the plurality of box bodies 4 can be adjusted one by one, and the spacing between the two tensioning mechanisms 5 can be adjusted. When adjusted, the lifting lead screw 34 is reversely rotated, so that the lifting lead screw 34 drives the pressing plate 37 and the non-slip rubber pad 38 to tightly press on the top of the plurality of sliding blocks 39, and then the box body 4 can be locked.
[0031] Further, the top end of the lifting lead screw 34 is fixedly connected with a hand wheel 32, and the top of the pressing plate 37 is fixedly connected with a bearing 36. The lifting lead screw 34 is fixedly sleeved in the inner ring of the bearing 36, which is convenient for rotatably connecting the lifting lead screw 34 to the top of the pressing plate 37 and facilitating the rotation of the lifting lead screw 34.
[0032] Further, the top of the fixed plate 1 is slidably provided with two limiting rods 31, both of which are fixedly connected to the top of the pressing plate 37, which is convenient for guiding and limiting the pressing plate 37 to make it lift more stably and smoothly.
[0033] In use, the two fixed plates 1 of the device are respectively installed on the two sides of the semitrailer carriage, the tarpaulin 6 in the present application is arranged on the outer side of the frame of the semitrailer carriage, according to the length of the tarpaulin 6, the spacing between the plurality of boxes 4 and the tensioning mechanism 5 needs to be adjusted in order to better tension the tarpaulin 6, in order to facilitate adjustment and fixation, the hand wheel 32 is rotated to rotate the lifting screw 34, under the action of the threaded sleeve 33, the lifting screw 34 moves upwards and drives the pressing plate 37 and the anti-skid rubber pad 38 to move upwards without fixing the plurality of sliding blocks 39, at this time, the positions of the plurality of boxes 4 can be adjusted one by one, and then the spacing between the two tensioning mechanisms 5 can be adjusted, when the adjustment is completed, the lifting screw 34 is reversely rotated, so that the lifting screw 34 drives the pressing plate 37 and the anti-skid rubber pad 38 to be tightly pressed on the top of the plurality of sliding blocks 39, and then the box 4 can be locked.
[0034] After fixing, the top end of the pull rope 502 is tied to the right hanging ring 501, when tensioning, the winding motor 504 is started, the winding motor 504 drives the rotating shaft 505 and the winding disc 506 to rotate clockwise, the inclined surface of the ratchet wheel 507 and the clamping block 512 abuts, and then when rotating, the ratchet wheel 507 can automatically extrude the clamping block 512 to move downwards, and then the clockwise rotation of the rotating shaft 505 and the winding disc 506 is not hindered, the winding disc 506 can wind the pull rope 502, when the knot 503 abuts against the top of the box 4, it indicates that the tarpaulin 6 has been tensioned, and the tarpaulin 6 is prevented from being damaged due to excessive tensioning caused by continuous winding, at this time, the winding motor 504 is closed, the straight surface on one side of the ratchet wheel 507 and the clamping block 512 abuts, effectively preventing the reverse rotation of the ratchet wheel 507, and then the purpose of locking the pull rope 502 is achieved, avoiding the situation that the winding disc 506 reversely rotates to release the pull rope 502, and causing the tarpaulin 6 to be loose.
[0035] It should be further pointed out that all the "provision" and similar descriptions in the present application (especially the specification) express that there is a connection relationship between two structures, but the specific connection means is not limited too much, and it is usually a conventional connection means, that is, it should be understood that the means is prior art and does not need to be described too much. For example, "m is provided with n", only expresses that m structure has n structure, and the specific connection between the two is through welding, riveting, adhesive connection or integral molding, which is within the protection scope of the present application. For example, "x is provided with y", only expresses that y and x can rotate relative to each other, and as to whether the two are connected through a bearing or y directly penetrates x to rotate relative to x, or other realizable modes, which are within the protection scope of the present application.
[0036] The above description is only the description of the preferred embodiment of the utility model, and does not limit the utility model in any way, and any change and modification of the utility model according to the above disclosure by the ordinary skilled in the art of the utility model belongs to the protection scope of the claims.
Claims
1. A tarp tensioning device, characterized by, The utility model provides a kind of semi-trailer, including the fixed plate (1) fixed in the one side of semi-trailer compartment, the side of the fixed plate (1) is evenly provided with multiple boxes (4) along the length direction of compartment, the box (4) is provided with tensioning mechanism (5), the tensioning mechanism (5) includes pull rope (502), the top end of the pull rope (502) is fixedly connected with canopy (6), the side of the box (4) is fixedly connected with sliding block (39), spacing adjusting mechanism (3) is arranged between the fixed plate (1) and several sliding blocks (39), the side of the fixed plate (1) is provided with four fixed holes (2).
2. A tarp tensioner as defined in claim 1, wherein, The tensioning mechanism (5) further includes a winding motor (504) fixedly connected to the front side of the box (4), an output shaft of the winding motor (504) is fixedly connected with a rotating shaft (505), the outer side of the rotating shaft (505) is fixedly sleeved with a winding disc (506), the pull rope (502) is wound around the outer side of the winding disc (506), the top end of the pull rope (502) is fixedly connected with a hanging ring (501), a plurality of hanging rings (501) are fixedly connected to the bottom of the canopy (6), and a locking assembly is arranged between the rotating shaft (505) and the box (4).
3. A tarpaulin tensioner according to claim 2, wherein, The locking assembly includes a ratchet (507) fixedly sleeved on the outer side of the rotating shaft (505) and a return spring (511) fixedly connected to the inner wall on the bottom of the box (4), the top end of the return spring (511) is fixedly connected with a clamping block (512), the clamping block (512) is movably clamped between the tooth gaps of the ratchet (507), and the bottom of the clamping block (512) is fixedly connected with a pull rod (508).
4. A tarpaulin tensioner according to claim 3, wherein, The bottom end of the pull rod (508) extends to the bottom of the box (4) and is fixedly connected with a pull ring (509).
5. A tarpaulin tensioner according to claim 3, wherein, The return spring (511) is sleeved on the outer side of the pull rod (508).
6. A tarp tensioner as defined in claim 1, wherein, The pull rope (502) is provided with a knot (503), and the knot (503) cooperates with the top of the box (4).
7. A tarp tensioner as defined in claim 1, wherein, The top of the box (4) is provided with a limiting hole (510), and the pull rope (502) is slidably sleeved in the limiting hole (510).
8. A tarp tensioner as defined in claim 1, wherein, The spacing adjusting mechanism (3) includes a sliding groove (30) formed on one side of the fixed plate (1) and a threaded sleeve (33) fixedly connected to the top of the fixed plate (1), a recess (35) is formed on the top inner wall of the sliding groove (30), the threaded sleeve (33) is threadedly sleeved with a lifting lead screw (34), the bottom end of the lifting lead screw (34) is rotatably connected with a pressing plate (37), the bottom of the pressing plate (37) is fixedly connected with an anti-skid rubber pad (38), the anti-skid rubber pad (38) movably abuts against the top of the plurality of sliding blocks (39), and the plurality of sliding blocks (39) are slidably sleeved in the sliding groove (30).
9. A tarpaulin tensioner according to claim 8, wherein, The top end of the lifting lead screw (34) is fixedly connected with a hand wheel (32), the top of the pressing plate (37) is fixedly connected with a bearing (36), and the lifting lead screw (34) is fixedly sleeved in the inner ring of the bearing (36).
10. A tarpaulin tensioner according to claim 8, wherein, The top of the fixed plate (1) is slidably provided with two limiting rods (31), and the two limiting rods (31) are fixedly connected to the top of the pressing plate (37).