CN219360921U - Damping tape rolling automobile safety tension device - Google Patents

Abstract

The utility model relates to a damping tape coiling automobile safety tensioning device, which comprises a host machine, a tape storage box and a binding tape, wherein the tape storage box is provided with a damping tape coiling shaft, and the damping tape coiling shaft comprises: the tape threading shaft is pivoted on the tape storage box; the elastic piece is arranged on the threading shaft and generates damping force when the threading shaft rotates so as to limit the threading shaft from excessively and freely rotating; the hand driving device is arranged on the outer side of the tape storage box and connected with the tape threading shaft so as to manually drive the tape threading shaft to rotate and enable the tape threading shaft to have a non-rotatable locking state and a rotatable unlocking state. Through setting up the elastic component that can produce the damping on wearing the take-up axle to restrict whole take-up axle excessively free rotation, can not lead to the meshbelt to roll up loosely because of take-up axle excessively free rotation and its rotation inertia like this when pulling out the meshbelt, make the operation process more high-efficient, also because there is the damping existence, when the rolling meshbelt, the meshbelt is rolled up can be inseparabler, prevents effectively that looseness.

Description

Damping tape rolling automobile safety tension device

Technical Field

The utility model relates to an automobile safety tensioning device which is used for various automobiles, trailers and motorcycles and can conveniently bind and fix cargoes.

Background

The conventional automobile safety tightening device is generally composed of a main machine and long and short binding belts with hooks, wherein the long binding belts are usually arranged separately from the main machine, free ends of the long binding belts penetrate into the main machine when in use and are adjusted to be proper lengths, and the main machine is operated to wind the binding belts tightly. However, the redundant binding belts can fly outside in the transportation process, so that the driving safety is affected; or knotting to cause the redundant binding belt to be wound on the main machine or the tightening belt, which is very unattractive.

To solve the above-mentioned problems, the applicant has previously filed a "manual belt-retracting car safety tensioner", publication number CN109017537B. The utility model solves the problems to a great extent, the utility model is provided with the tape coiling box for collecting and storing redundant webbing, and the tape coiling shaft can be locked after the hand wheel is screwed so as to avoid the webbing loosening. However, during operation, the webbing needs to be pulled out, the hand wheel cannot be locked, and the winding shaft can still rotate freely. When the webbing is pulled out to a proper length, the winding shaft and the webbing coil do not immediately stop rotating, but continue rotating under the action of inertia force, so that the webbing coil cannot be well wound on the winding shaft in the process, namely, the webbing coil can generate obvious loosening phenomenon, even part of the webbing is loose and serious, and is scattered outside the webbing coil, hooked or wound outside the winding box, so that the webbing is clamped and cannot be wound or pulled out, the function of the tensioning device is influenced, and the manual intervention is required again, so that the working efficiency is greatly reduced.

In view of the above, there is a need for further improvements in existing automotive safety pull-up devices.

Disclosure of Invention

Aiming at the prior art, the utility model provides the damping tape coiling automobile safety tensioning device which can prevent the tape coiling from loosening in the operation process.

The technical scheme adopted for solving the technical problems is as follows: this damping winding car safety straining device, including the host computer, locate storage tape box, first bandage and the second bandage on the host computer, characterized by be provided with damping winding axle on the storage tape box, this damping winding axle includes:

the tape threading shaft is pivoted on the tape storage box, and the inner end of the first binding tape is connected to the tape threading shaft;

the elastic piece can generate damping force when the threading shaft rotates so as to limit the excessive free rotation of the threading shaft;

the hand driving device is arranged at the outer side of the tape storage box and connected with the tape threading shaft so as to manually drive the tape threading shaft to rotate and enable the tape threading shaft to have a non-rotatable locking state and a rotatable unlocking state;

the elastic piece can be arranged on the threading shaft or the hand driving device.

Further, the host comprises a base, the tape storage box is connected to the base in a split mode, and a limiting structure capable of preventing the tape storage box from rotating relative to the host is arranged between the tape storage box and the base, so that good overall stability can be obtained; the tape storage box comprises two tape storage box side pieces which are arranged in a left-right separated mode and a tape storage box fixing shaft connected between the two tape storage box side pieces, and convex ribs protruding towards the inner side of the tape storage box are arranged on the tape storage box side pieces, so that the strength of the side pieces is improved, and the woven tape roll is prevented from being cut by sharp edges of the side pieces.

Further, the tail of the convex rib can be provided with a first protruding limit edge, the protruding height of the first limit edge is not more than the thickness of the side wall of the base, the first protruding limit edge is propped against a second limit edge on the tail of the side wall of the base to limit, and the first limit edge and the second limit edge form a limit structure capable of preventing the tape storage box from rotating relative to the host.

Further, the elastic member may be an element capable of generating an axial elastic force, such as an elastic washer, a cylindrical compression spring, a tower spring, a belleville spring, an elastic rubber sleeve, etc., but is not limited thereto, and other similar elements may be used.

Further, a tape threading hole is axially formed in the middle of the tape threading shaft, the first binding tape penetrates through the host machine and is limited on the tape threading hole, and one end of the tape threading shaft extends out of the tape storage box and is used for being connected with the hand driving device.

Further, the hand-drive device may be implemented in a variety of ways, such as one comprising: the hand wheel is screwed on the threading shaft and can be screwed in or out relative to the threading shaft; the first rocker arm is pivoted on the hand wheel to be in an open state or a folded state, and is stored in the storage groove of the hand wheel in the folded state.

The elastic piece is preferably a tower-shaped spring; a cylinder used for sleeving the tower-shaped spring is arranged on one side, close to the tape storage box, of the hand wheel, and the top end surface of the cylinder directly abuts against the tape storage box in the tape threading shaft locking state so as to limit the rotation of the tape threading shaft; under the unlocking state of the threading shaft, the top end face of the cylinder is separated from contact with the tape storage box, and two ends of the tower-shaped spring are respectively contacted with the hand wheel and the tape storage box and are in a compressed state so as to generate axial damping to limit excessive free rotation of the threading shaft.

Or the elastic piece can also be a wave-shaped elastic washer, a disc spring or the like, can be axially sleeved on the threading shaft and is positioned between the hand wheel and the side piece of the tape storage box to be in a compressed state so as to generate certain damping and limit the excessive free rotation of the threading shaft. When the hand wheel is screwed in, the elastic piece can be pressed on the side piece of the tape storage box, so that the tape threading shaft can be locked and can not rotate any more, namely, the tape threading shaft is in a locking state; when the hand wheel is unscrewed, the threading shaft is in an unlocking state, the threading shaft can be driven to rotate together through the first rocker arm, the elastic piece is still in a compression stress state, the reaction force of the elastic piece is kept on the hand wheel and the tape storage box, and the generated friction resistance can limit the threading shaft to excessively and freely rotate, namely, the threading shaft is in a rotatable mode with damping.

The second rocker arm is pivoted on the threading shaft and can be in an open state or a folding state, a cam part is arranged at the pivoting end of the second rocker arm, and the elastic piece is extruded by the cam part to enable the elastic piece to be in a fully compressed or nearly fully compressed state when the second rocker arm is in the folding state. When the rocker arm is in an open state, the threading shaft is in an unlocking state and is in a rotatable mode with damping; when the rocker arm is in a folded state, the threading shaft can not rotate any more, and is in a locking state.

The elastic piece can also be a tower-shaped spring, a wave-shaped elastic washer or a belleville spring, is axially sleeved on the threading shaft, and is positioned between the second rocker arm and the side piece of the tape storage box to be in a compressed state.

In order to make the compression or compression effect of the rocker arm on the elastic member better, a gasket can be arranged between the elastic member and the second rocker arm.

The host machine and the tape storage box can be in a connected or separated arrangement, and preferably in a separated arrangement.

Compared with the prior art, the utility model has the advantages that: this damping winding car safety straining device is through setting up the elastic component that can produce the damping on wearing the take-up axle to restrict whole take-up axle excessively free rotation, can not lead to the meshbelt to roll up loosely because the excessive free rotation of take-up axle and its rotation inertia like this, make the operation process more high-efficient, also because there is the damping existence, when the rolling meshbelt, the meshbelt is rolled up and can be inseparabler, effectively prevent loosely.

Drawings

FIG. 1 is an exploded view of a first embodiment of the present utility model;

FIG. 2 is an exploded view of a portion of a tape according to an embodiment of the present utility model;

FIG. 3 is a schematic front perspective view of a first embodiment of the present utility model;

FIG. 4 is a schematic rear perspective view of a first embodiment of the present utility model;

FIG. 5 is a front view of a first embodiment of the present utility model;

FIG. 6 is a schematic cross-sectional view of a first embodiment of the present utility model;

FIG. 7 is a schematic perspective view illustrating a limit structure of a tape cassette according to an embodiment of the present utility model;

FIG. 8 is an exploded view of a damper spool assembly according to a first embodiment of the present utility model;

FIGS. 9a and 9b are schematic views illustrating installation positions of a tower spring according to a first embodiment of the present utility model;

FIG. 10 is a schematic cross-sectional view of an embodiment of the present utility model in an unlocked state;

FIG. 11 is a schematic cross-sectional view of a first embodiment of the present utility model in a locked state;

FIG. 12 is an exploded view of a second embodiment of the present utility model;

FIG. 13 is a top view of a second embodiment of the present utility model;

FIG. 14 is a schematic cross-sectional view of a damper roll shaft according to a second embodiment of the present utility model;

FIG. 15 is an exploded view of a third embodiment of the present utility model;

FIG. 16 is a front perspective view of a third embodiment of the present utility model;

fig. 17 is a top view of a third embodiment of the present utility model in a rocker arm open position;

fig. 18 is a top view of a rocker arm in a locked state according to a third embodiment of the present utility model.

The tension device comprises a tensioning device main machine 100, a tape storage box 200, a damping tape winding shaft 300, a base 1, a connecting hole 101, a limit edge 102, a main rotating shaft 2, a ratchet wheel 3, a pin 4, a handle side piece 5, a connecting screw 6, a handle fixing shaft 7, a driving pawl 8, a handle 9, a torsion spring 10, a connecting nut 11, a stop pawl 12, a pressure spring 13, a tape storage box side piece 14, a connecting hole 141, a convex rib 142, a limit edge 143, a tape winding shaft hole 144, a tape storage box fixing shaft 15, a tape penetrating shaft 16, a tape penetrating hole 161, a hand wheel 17, a cylinder 171, a top end surface 172, a rocker 18, a cam part 181, a pin 19, an elastic piece 20, a tower-shaped spring 20a, a wave-shaped elastic washer 20b, a washer 21, a screw 22, a first binding belt 23, a long binding belt 231, a hook 232, a tape winding 233, a second binding belt 24 and a washer 25.

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings.

Embodiment one:

as shown in fig. 1 to 11, the damping tape car safety tensioner of the present embodiment mainly includes a main body 100, a tape cartridge 200, a damping tape spool 300, a first strap 23 and a second strap 24.

The host 100 may be of a conventional structure, and as shown in the drawings of the present embodiment, it mainly includes a base 1, a handle mounted on the base 1, and a transmission mechanism driven by the handle. The transmission mechanism comprises a main rotating shaft 2, a ratchet wheel 3, a driving pawl assembly and a stopping pawl assembly, wherein the driving pawl assembly comprises a driving pawl 8 and a torsion spring 10, and the stopping pawl assembly comprises a stopping pawl 12 and a pressure spring 13. Wherein, ratchet 3 is installed on main pivot 2, and initiative pawl subassembly and stopping pawl subassembly cooperate with ratchet 3, install on handle and base 1 respectively. The base 1 is connected with the handle through a main rotating shaft 2, and a pin 4 is arranged at the outer end of the main rotating shaft 2. The handle mainly comprises two handle side pieces 5 which are arranged left and right, a handle fixing shaft 7 and a handle 9. The first strap 23 includes a conventional long webbing 231 and a hook 232. Since the above-described structure is an existing structure, description thereof will not be given here.

The tape cassette 200 may be provided integrally or separately from the main body 100, but is preferably provided separately as shown in the drawings of the present embodiment. Specifically, the two sides of the tail of the base 100 are provided with connecting holes 101, and the tape storage box 200 is connected to the host 100 through the connecting screw 6 and the connecting nut 11. The tape storage box 200 is composed of two tape storage box side pieces 14 and a tape storage box fixing shaft 15 which are arranged in a left-right separated mode, the fixing shaft 15 is located in the middle of the tape storage box 200, the two side pieces 14 are supported, a tape storage space with a certain inner width is formed, and the tape storage space is suitable for the width of the ribbon roll 233. The side piece 14 of the tape storage box is provided with a connecting hole 141, is coaxially arranged with the connecting hole 101, and is fixedly connected to the host 100 through a screw 6 and a nut 11. The screws and nuts here can also be fixed in the form of connecting shafts or connecting rivets, preferably screw nuts.

As shown in fig. 6 and 7, the side sheet 14 of the tape storage box is a metal stamping, and the ribs 142 are pressed toward the inner side of the tape storage box, and the ribs 142 function to increase the strength of the side sheet to avoid deformation, and the protruding portions can avoid the contact between the two sides of the fabric roll 233 and the edges of the side sheet, so as to avoid the fabric roll 233 from being cut by the sharp edges of the side sheet 14.

As shown in fig. 6, a protruding limit edge 143 (i.e., the first limit edge) is pressed out from the tail of the protruding rib 142, and the protruding height of the limit edge 143 does not exceed the thickness of the side wall of the base 1, and contacts with and abuts against the tail limit edge 102 (i.e., the second limit edge) of the base 1 to limit, so as to prevent the tape storage box 200 from rotating relative to the host 1, and thus, better overall stability can be obtained.

As shown in fig. 2, 10 and 11, the side piece 14 of the tape cartridge is provided with a winding shaft hole 144, and the damping winding shaft 300 is pivotally connected to the tape cartridge 200 through the winding shaft holes 144 on both sides. The damping tape spool 300 includes a tape threading shaft 16 for threading and winding a long webbing 231, a tape threading hole 161 is formed in the middle of the tape threading shaft 16, the end of the tape threading shaft 16 is an external thread, and the end extends out of the side piece 14 of the tape storage box and is used for connecting a hand driving device so as to manually drive the tape threading shaft 16 to rotate and enable the tape threading shaft 16 to have a non-rotatable locking state and a rotatable unlocking state.

The hand driving device comprises a hand wheel 17 and a rocker arm 18 (namely the first rocker arm) which are pivoted through a pin 19, the rocker arm 18 can be folded into a containing groove of the hand wheel 17, the rocker arm 17 is opened for winding operation, the center of the hand wheel 17 is also provided with corresponding internal threads, and the hand driving device is screwed into external threads at the tail end of the threading shaft 16, namely the hand wheel 17 can be axially screwed in and out relative to the threading shaft 16. The spacer 21 is tightly attached to the threaded end surface of the threading shaft 16, the spacer 21 is fixed on the threading shaft 16 by a screw 22, and when the hand wheel 17 is screwed out, the spacer 21 is contacted with the spacer, so that the threading shaft 16 is driven to rotate together, and the long webbing 231 is wound on the threading shaft 16 to form a webbing coil 233. An elastic member 20 is provided between the hand wheel 17 and the side plate 14 of the tape cassette, and the elastic member 20 is an element capable of generating axial elastic force, for example, an elastic washer, a cylindrical compression spring, a tower spring, a belleville spring, an elastic rubber sleeve, or the like may be selected, but the tower spring 20a shown in the drawings of this embodiment is preferable, as shown in fig. 8, 9a, and 9 b. A cylinder 171 for fitting the tower spring 20a is provided on the side of the hand wheel 17 near the side piece 14, and the tip surface 172 of the cylinder is in direct contact with the side piece 14 in the threading shaft locking state to restrict the rotation of the threading shaft 16.

As shown in the combined drawings, in the unlocked state in which the threading shaft is rotatable, the hand wheel 17 is not in contact with the side piece 14, and the two ends of the tower-shaped spring 20a are respectively in contact with the hand wheel 17 and the side piece 14, and are compressed to a certain extent to generate axial pressure, and the pressure is damped when the rocker arm 18 and the hand wheel 17 are rotated. Fig. 11 shows a locked state in which the threading shaft cannot rotate, and the top surface 172 of the cylinder 171 on the hand wheel 17 directly contacts and presses against the side piece 14, so that the threading shaft 16 cannot rotate any more.

The tower spring 20a is always in a stressed and compressed state in use, but is not fully compressed, and the reaction is applied to the hand wheel 17 and the side piece 14 of the tape storage box, so that a certain friction resistance is generated, so that the whole damping tape spool 300 cannot freely rotate, and the long webbing 231 is prevented from loosening due to rapid rotation of the webbing 233 caused by rotational inertia when being pulled out because of too flexible rotation. Because the loose long webbing 231 may slip out of the magazine 200 after being separated from the webbing 233, even the side panels 14, rocker 18, main machine 100, or other locations hooked to the periphery of the magazine 200, manual intervention is required to finish the unwinding, thereby affecting the subsequent operation, resulting in inconvenience and unexpected trouble.

After the operation is completed, the hand wheel 17 can be screwed in, so that the cylindrical top end surface 172 on the hand wheel 17 directly abuts against the side piece 14 of the tape storage box, and the tape threading shaft 16 can be locked and not rotated any more, namely, a locking mode is used in the process of transportation or storage after the use, and a rotatable mode with damping is used in the process of binding operation, so that the loose condition of the fabric tape roll 233 in all processes can be effectively avoided. Therefore, the comfort level of operation can be greatly improved, and the time waste caused by the loosening of the braid roll is reduced.

Embodiment two:

the main difference from the first embodiment is that the elastic member is mounted in a different manner, and the elastic member 20 may be an elastic washer, a belleville spring, a tower spring, or the like, but the wave-shaped elastic washer 20b illustrated in the present embodiment is preferable. As shown in fig. 12-14, the wave washer 20b is sleeved on the threading shaft 16 and may be interposed between the hand wheel 17 and the cartridge side piece 14 or between the threading shaft 16 and the cartridge side piece 14, but is preferably interposed between the hand wheel 17 and the cartridge side piece 14. Thus, unlike the first embodiment, the hand wheel 17 and the side piece 14 are not in direct contact, but are spaced apart by an elastic member.

In the unlocked mode, the wave washer 20b is also always in compression to damp the threading shaft.

In the locking mode, i.e., after the hand wheel 17 is threaded in, the wave washer 20b is fully compressed or nearly fully compressed against the cartridge side piece 14, thereby locking the threading shaft 16 from rotating any further, as shown in fig. 14.

Embodiment III:

the main difference from the first and second embodiments is the use of a hand drive. As shown in fig. 15 and 16, after the threading shaft 16 of the present embodiment passes through the shaft hole 144, the rocker arm 18 (i.e., the second rocker arm) is pivoted with the pin 19, and the rocker arm 18 can be folded up by 180 ° rotation. A damping elastic member 20 is arranged between the rocker 18 and the side piece 14 of the tape storage box, and a gasket 25 is arranged between the elastic member 20 and the rocker 18, so that the compression or compaction effect is better. The elastic member 20 may be a wave washer 20b as shown in the drawings, but may be other elastic members such as a tower spring, a belleville spring, etc.

The end of the rocker arm 18 pivoted with the threading shaft is provided with a cam part 181, namely the distance from the rotation center of the rocker arm 18 to the edge is different, and the rocker arm 18 is eccentric and has the cam effect.

In this case in the rotatable mode, the rocker arm 18 is in an open position, i.e. in operational use, as shown in fig. 17. The rocker arm contacts the gasket 25, the gasket 25 contacts the wave spring washer 20b, and compresses the wave spring washer 20b to a certain extent, generating axial pressure, preventing the spool 300 from rotating freely too flexibly, but rotating with certain damping, so as to avoid loosening of the webbing spool 233 due to inertial rotation of the spool 300 and the webbing spool 233 when the webbing 231 is pulled out.

In the locked mode shown in fig. 18, the rocker arm 18 is folded 180 ° and the cam portion 181 is in contact with the pad 25 on the side having the larger eccentricity and the wave spring washer 20b is fully compressed or nearly fully compressed, so that the damper spool 300 and the webbing spool 233 can not rotate any more, and the webbing is not loosened.

If unlocking is required, the rocker arm 18 is only required to be turned 180 degrees again in the opposite direction.

Claims (10)

1. The utility model provides a damping winding car safety straining device, includes the host computer, locates storage tape box, first bandage and the second bandage on the host computer, its characterized in that: a damping tape spool is provided on the tape cartridge, the damping tape spool comprising:

the tape threading shaft is pivoted on the tape storage box, and the inner end of the first binding tape is connected to the tape threading shaft;

the elastic piece can generate damping force when the threading shaft rotates so as to limit the excessive free rotation of the threading shaft;

the hand driving device is arranged on the outer side of the tape storage box and connected with the tape threading shaft, so that the tape threading shaft can be manually driven to rotate and can be in a non-rotatable locking state and a rotatable unlocking state.

2. The damped tape car safety tensioner of claim 1, wherein:

the host comprises a base, the tape storage box is connected to the base, and a limiting structure capable of preventing the tape storage box from rotating relative to the host is arranged between the tape storage box and the base;

the tape storage box comprises two tape storage box side pieces which are arranged in a left-right separated mode and a tape storage box fixing shaft connected between the two tape storage box side pieces, and protruding ribs protruding towards the inner side of the tape storage box are arranged on the tape storage box side pieces.

3. The damped tape car safety tensioner of claim 2, wherein: the tail of the convex rib is provided with a first protruding limit edge, the first protruding limit edge is propped against a second protruding limit edge on the tail of the side wall of the base to limit, and the first protruding limit edge and the second protruding limit edge form a limit structure capable of preventing the tape storage box from rotating relative to the host.

4. The damped tape car safety tensioner of claim 1, wherein: the elastic piece adopts an element capable of generating axial elastic force, and one of an elastic washer, a cylindrical compression spring, a tower-shaped spring, a belleville spring and an elastic rubber sleeve is selected.

5. The damped tape car safety tensioner of claim 1, wherein: the middle of the belt penetrating shaft is axially provided with a belt penetrating hole, the first binding belt penetrates through the host machine and is limited on the belt penetrating hole, and one end of the belt penetrating shaft extends out of the belt storing box and is used for being connected with the hand driving device.

6. A damped wind car safety tensioner according to any one of claims 1 to 5, wherein: the hand drive device includes:

the hand wheel is screwed on the threading shaft and can be screwed in or out relative to the threading shaft;

the first rocker arm is pivoted on the hand wheel to be in an open state or a folded state, and is stored in the storage groove of the hand wheel in the folded state.

7. The damped web vehicle safety tensioner of claim 6, wherein: the elastic piece adopts a tower-shaped spring;

a cylinder used for sleeving the tower-shaped spring is arranged on one side, close to the tape storage box, of the hand wheel, and the top end surface of the cylinder directly abuts against the tape storage box in the tape threading shaft locking state; in the unlocking state of the threading shaft, the top end face of the cylinder is separated from contact with the tape storage box, and two ends of the tower-shaped spring are respectively contacted with the hand wheel and the tape storage box and are in a compressed state.

8. The damped web vehicle safety tensioner of claim 6, wherein: the elastic piece is axially sleeved on the threading shaft and is positioned between the hand wheel and the tape storage box in a compressed state.

9. A damped wind car safety tensioner according to any one of claims 1 to 5, wherein: the hand driving device comprises a second rocker arm which is pivoted on the threading shaft and can be in an open state or a folding state, a cam part is arranged at the pivoting end of the second rocker arm, and the elastic piece is extruded by the cam part to enable the elastic piece to be in a fully compressed or nearly fully compressed state when the second rocker arm is in the folding state.

10. The damped web vehicle safety tensioner of claim 9, wherein: the elastic piece is axially sleeved on the threading shaft and is positioned between the second rocker arm and the tape storage box in a compressed state;

a gasket is arranged between the elastic piece and the second rocker arm.