CN202147857U

CN202147857U - Multistage transmission automobile safe tension device

Info

Publication number: CN202147857U
Application number: CN201120187564U
Authority: CN
Inventors: 陈伟国; 邓伟; 李建标
Original assignee: Ningbo Xuli Metal Products Co Ltd
Current assignee: Ningbo Xuli Metal Products Co Ltd
Priority date: 2011-06-02
Filing date: 2011-06-02
Publication date: 2012-02-22
Anticipated expiration: 2021-06-02

Abstract

The utility model relates to an automobile safe tension device, to be specific, a multistage transmission automobile safe tension device comprising a base component and a handle component, which are connected together by a multistage transmission component. The multistage transmission component comprises a base pivoted to the base component, a transmission shaft of a handle of the handle component, and a main rotating shaft fixedly disposed on the base and used for winding a long bandage. The transmission shaft is fixedly provided with a transmission wheel, the rotation state required by the binding, the not-rotation state required by the locking, and the idle running state required by the releasing can be realized by the transmission wheel under the action of the base component and the handle component. By adopting the multistage transmission, a considerable big binding force can be obtained on the bandage after a plurality of times of conversion of the relatively small force applied on the handle. By increasing or reducing the transmission grades, the transmission ratio of each grade can be changed, and different binding forces can be obtained by applying the same force on the handle.

Description

Multistage transmission automotive safety take-up device

Technical field

The utility model relates to a kind of various automobiles, lorry, trailer, motor bike of being used for, and can conveniently bundle the automotive safety take-up device of restraint of loads.

Background technology

The automotive safety take-up device is made up of take-up device main frame, long bandage and spat usually; Wherein host machine part adopts the ratchet device principle of anti-reversing; Directly drive initiatively ratchet by handle; Initiatively ratchet promotes ratchet, and ratchet directly drives main shaft, thereby will be wrapped in the bandage tension on the main shaft.And detent prevents the ratchet reversing to make to keep certain force of strain on the bandage, and Goods binding is fixed.

According to the mechanics relative theory, when staff applies certain force on handle, on bundling belt, can obtain a bigger seizing force; This seizing force relative fixed; The too for a short time tighten goods that is not enough to of seizing force depends primarily on the length of handle, if can cause traffic safety hidden danger; Therefore, increasing seizing force is the direction of making joint efforts in the industry.

If the power that on handle, applies is identical, when needing to increase seizing force, general method is for increasing decreased food, and the arm of force that promptly extends, whole like this plant bulk can be very long, and cost is high, and carries, transports and operate all inconvenient.The take-up device that also has is designed to Foldable handle or telescopic handle, though can when carrying and transport, use short handle, and operation the time use long handle, complex structure, operation inconvenience, cost height.

The utility model content

The utility model technical matters to be solved is a kind of structure brand new to be provided, can easily to obtain the automotive safety take-up device of seizing force greatly to above-mentioned prior art.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: this automotive safety take-up device; Comprise base assembly and Handleset; It is characterized in that described base assembly and Handleset connect through multistage transmission component; This multistage transmission component includes the transmission shaft and the main shaft on the base that is fixed in that is used to twine long bandage of the handle of the base that is used to articulate base assembly and Handleset; Be fixed with power wheel on the transmission shaft, the effect of this power wheel through base assembly and Handleset realizes bundling the required not rotary state of required rotary state, locking and discharges required idling conditions.

Described power wheel is a ratchet, and described Handleset comprises and be contained in the active ratchet that cooperates with ratchet on the handle and the active ratchet spring that acts on the ratchet initiatively that described ratchet realizes bundling required rotary state through the promotion of active ratchet.

Described base assembly comprises base-mounted detent and acts on the detent spring on the detent that detent is the described power wheel of reverse blocking through the effect of detent spring, realizes the required not rotary state of power wheel locking.

Described active ratchet and the base-mounted detent that is contained on the handle lays respectively at transmission shaft when handle is not opened the same side; The handle front portion of described Handleset is the cam-like that can promote detent; The base bilateral wall upper limb of described base assembly is formed with and can supplies the initiatively release groove of the sunken card of ratchet, realizes that by this cam-like front portion and release groove ratchet discharges required idling conditions.

Described multistage transmission component is a secondary transmission device, the driving gear that this secondary transmission device also comprises and said coaxial ratchet is fixing, and be fixed on the main shaft ring gear with this driving gear engaged transmission.And ratchet on the transmission shaft and driving gear separate through a pad, and this pad is contained on main shaft and the transmission shaft simultaneously, has the through hole that can supply main shaft and transmission shaft to pass on it.

Described multistage transmission component is the above transmission device of a secondary, and this transmission device comprises also and the fixing driving gear of coaxial ratchet that main shaft is provided with the final stage ring gear; Driving gear and next stage ring gear are meshing with each other, and the intergrade ring gear is fixed on the intergrade transmission shaft; Final stage ring gear and upper class ring gear are meshing with each other; Described middle groups drive shaft cartridge is on the base of base assembly.

The handle of described Handleset is constituted through handle fixed plate and handle setting shaft by two handle lateral plates, the corresponding hole that is used to be provided with said transmission shaft and said active ratchet that has on the two handle lateral plates; Described handle fixed plate is provided with three through holes; Can supplying to be arranged on initiatively, three pins at ratchet rear portion pass; Wherein two pins on the active ratchet limit are connected with a handle after passing corresponding through hole, pass cooresponding intermediate throughholes after middle pin puts described active ratchet spring.

The base of described base assembly is constituted through base fixed plate and base anchor shaft by two base lateral plates, the corresponding hole that is used to be provided with said main shaft, said transmission shaft and said detent that has on the two base lateral plates; Described base fixed plate is provided with a through hole, and a pin that can supply to be arranged on the detent rear portion passes; Described detent spring housing is on the pin at detent rear portion, and two of spring withstands on respectively on base fixed plate and the detent; The screw bolt and nut that spat connects usefulness also is housed on the described two base lateral plates.

During operation, the driving handle assembly drives the active ratchet, rotated by active ratchet drive ratchet, and the ratchet rotation drives the transmission shaft rotation, and transmission shaft drives the driving gear rotation; Because gear is meshing with each other, so driving gear drive ring gear toward the opposite sense rotation, finally drives main shaft and bundling belt is tightly wrapped.

Compared with prior art; The advantage of the utility model is: owing to adopt multistage transmission; After multiple conversions, finally can on bundling belt, obtain a sizable seizing force to the less power that applies on the handle, and increase or reduce transmission progression; Change the transmitting ratio of transmissions at different levels, under the situation that applies identical handle power, can obtain the seizing force of different sizes.

Description of drawings

Fig. 1 is the exploded drawings of the utility model embodiment one;

Fig. 2 is the block diagram of the utility model embodiment one;

Fig. 3 is the cutaway view of the utility model embodiment one;

Fig. 4 is the outside drawing (main looking) of the utility model embodiment one;

Fig. 5 is the outside drawing (overlooking) of the utility model embodiment one;

Fig. 6 is the drive disk assembly block diagram of the utility model embodiment one;

Fig. 7 is the transmission principle figure of the utility model embodiment one;

Fig. 8 a, Fig. 8 b, Fig. 8 c are the operating process scheme drawing of the utility model embodiment one.

Fig. 9 is the structural representation of the utility model embodiment three.

The specific embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

Embodiment one:

Like Fig. 1,2,3,4, the automotive safety take-up device shown in 5, include base assembly 1, Handleset 2 and multistage transmission component 3, wherein:

Base assembly 1 includes base, detent 10 and detent spring 11 etc., and wherein base is to form (this two bases lateral plate forms the base bilateral wall described in the claim 4) by the base lateral plate 4 of two same structures through connections such as base fixed plate 7 and base anchor shafts 6.On two base lateral plates 4, be used for also being provided with the hole that is used for installing main shaft 28, detent 10 and a plurality of transmission shafts the hole of installation fixing piece 7 and anchor shaft 6 except being provided with.In addition, the upper limb of two base lateral plates 4 is the concavo-convex of fluctuating, and is formed with one and can supplies ratchet 14 initiatively to fall into the release grooves 33 of card.Base fixed plate 7 and detent 10 insert on the base lateral plate 4 behind the corresponding hole through both sides separately and install obliquely on base, and detent 10 its ends that make progress are contained in the ratchet 23 on the transmission shaft 25 towards transmission shaft with cooperation.There is backward the pin that extends at the rear portion of detent 10, and is used for sheathed detent spring 11.There is the baffle plate of upwards turning up at base fixed plate 7 rear portions, and a through hole is arranged on the baffle plate, can supply the pin on the detent 10 to pass.Detent spring 11 is enclosed within on the pin of detent 10, and its two withstands on respectively on the baffle plate of detent 10 and fixed plate 7, and detent 10 is driven through the effect of spring force in ratchet 23 all the time.Accomplish at Goods binding, handle is when closing up state, and the ratchet interlock (shown in Fig. 8 a) on this detent 10 and the ratchet 23 to prevent ratchet 23 reversings, makes bandage can keep certain force of strain, and Goods binding is fixed.Afterbody at base is equipped with a bolt 8, and this bolt 8 passes Kong Houyong one nut 9 lockings on the two base lateral plates 4.Spat 32 promptly is connected on this bolt 8.

Handleset 2 includes handle, initiatively ratchet 14 and ratchet spring 17 etc. initiatively, and handle is to be formed through connections such as handle fixed plate 19 and handle setting shafts 18 by the handle lateral plate 13 of two same structures.On two handle lateral plates 13, be used for the hole of installation fixing piece 19 and anchor shaft 18, also be provided with and be used for installing the hole 21 of transmission shaft 25 and the hole of ratchet 14 initiatively except being provided with.The front portion of handle lateral plate 13 is cam-like 22, can detent 10 be backed down through the handle front portion of this cam-like, makes it break away from ratchet 23.Handle fixed plate 19 is with initiatively ratchet 14 is separately through installing on handle behind the corresponding hole on the both sides insertion lateral plate 13, and initiatively the end of ratchet 14 is contained in the ratchet 23 on the transmission shaft towards transmission shaft 25 with correspondence.Initiatively there are three pins that extend back at the rear portion of ratchet 14; The handle fixed plate 19 that correspondingly is positioned at its rear portion has the baffle plate of a downward bending; Be formed with on the baffle plate three with ratchet 14 initiatively on the cooresponding through hole of pin; Wherein initiatively two pins on the ratchet limit pass behind the corresponding through hole with a handle 15 and are connected through rivet 16; Middle pin puts initiatively and passes cooresponding intermediate throughholes behind the ratchet spring 17, and two of ratchet spring 17 is initiatively withstood on respectively on the baffle plate of initiatively ratchet 14 and handle fixed plate 19, and initiatively ratchet 14 drives through the effect of this spring 17 in ratchet 23 all the time.Afterbody at handle is equipped with handle 20 in addition.Present embodiment, when handle closed up, active ratchet 14 on it and the detent 10 on the base all were in the same side of transmission shaft 25.

The multistage transmission component of present embodiment is a secondary transmission device; It is as shown in Figure 6; Include ratchet 23, driving gear 24, transmission shaft 25, main shaft 28 and ring gear 27 etc.; Wherein main shaft 28 is contained on the main shaft hole 5 of base, and it is combined by the two halves circular shaft, and long bandage 31 is wrapped on this main shaft 28.Its two was through pin 29 combinations and spacing after main shaft 28 was contained on the base.Ring gear 27 is provided with two semi-circular hole, can supply the two halves circular shaft to pass.Two ring gears 27 are contained in two of main shaft 28 respectively, and lay respectively at the outside of base lateral plate 4.Transmission shaft 25 is positioned at the back of main shaft 28, laterally arranges with main shaft 28, is equipped with the

hole

12,21 that can supply transmission shaft to pass on base and the handle, and it is spacing that transmission shaft 25 passes corresponding Kong Houyong pin 30.Base is articulated in through this transmission shaft 25 with handle, makes handle base rotation relatively.Two of transmission shaft 25 is equipped with a ratchet 23 and a driving gear 24 respectively, corresponding initiatively ratchets 14 and detents 10 of ratchet 23 wherein, and driving gear 24 corresponding ring gears 27 are meshed with ring gear 27.And be separated by through a pad 26 respectively between ratchet 23 and the driving gear 24, this pad 26 is enclosed within on main shaft 28 and the transmission shaft 25, which is provided with the hole that can supply main shaft 28 and transmission shaft 25 to pass.

During the transmission of this secondary transmission device (as shown in Figure 7), ratchet 23 is driven and is rotated by Handleset 2, drives transmission shaft 25 by ratchet 23 again to rotate; Driving gear 24 is fixed on the transmission shaft 25, thereby also rotates with transmission shaft 25, and driving gear 24 is meshed with ring gear 27; Thereby drive ring gear 27 toward the opposite sense rotation; And ring gear 27 is fixed on the main shaft 28, thereby drives main shaft 28 rotations, and main shaft 28 rotates long bandage 31 is wrapped on the main shaft 28.Like this, the repeatable operation handle can make bandage tension and reaches the purpose of tighten goods.

Combine shown in Fig. 8 a-Fig. 8 c, the dynamic process when the utility model take-up device is used is described below at present:

Like Fig. 8 a, be lock position.

During operation, like Fig. 8 b, on Handleset 2, apply power, the active ratchet 14 that is attached thereto promotes ratchet 23 and rotates, and ratchet 23 drives transmission shaft 25 and rotates, and transmission shaft 25 drive driving gears 24 rotate toward equidirectional.Driving gear 24 drives the ring gear 27 that is meshed with it and rotates toward opposite senses, rotates thereby drive main shaft 28, and long bandage 31 is wrapped on the main shaft 28, and the repeatable operation handle can obtain the seizing force that needs, and Goods binding is fixed.

Operation after accomplishing is closed up Handleset 2 to lock position, like Fig. 8 a, and the detent 10 of this moment and the ratchet interlock on the ratchet 23, ratchet 23 is rotatable.

During release, Handleset 2 is opened, shown in Fig. 8 c; Initiatively ratchet 14 is positioned in the release groove 33 of base lateral plate 4; Detent 10 is backed down in cam-like 22 front portions of handle lateral plate 13 simultaneously, and ratchet 23 and two

ratchets

10,14 are all broken away from, and can reverse; This moment, whole multistage transmission component 3 was the state that freely rotates, thereby discharged the tension force on the long bandage 31.

Embodiment two:

Different with embodiment one is, what multistage transmission component adopted is the above multistage transmission device of a secondary, and it can set up more transmission on demand between first order transmission and final stage transmission.Specifically can implement as follows: with the transmission shaft among the embodiment one as the one-level transmission shaft, device and ratchet and driving gear on the transmission shaft, driving gear is meshed with gear on the next stage transmission shaft.And main shaft is as level transmission shaft not, be fixed with on it with the upper class transmission shaft on the ring gear that is meshed of gear.Through one-level and level do not set up second, third or more multistage driving cog group between the transmission, can obtain needed seizing force.The transmission shaft of intergrade between the one-level transmission shaft and not the level transmission shaft between, they can be contained in the axis hole that is preset on the base.

Embodiment three: as shown in Figure 9; Different with front two embodiment is not want ratchet; But directly be used as ratchet to driving gear with (also be in the claim 1 power wheel be this driving gear); Initiatively ratchet directly contacts with this driving gear with detent, saves ratchet and reaches identical functions.Present embodiment mainly is that driving gear and driving ratchet, stop gear will be done adaptive change, and all the other structures and front embodiment are basic identical, therefore no longer details.

But the utility model can also carry out different remodeling, and be not limited to above-mentioned three kinds of schemes except the foregoing description is said.All adopt gear-driven mode like foregoing transmission component; The multistage transmission component of the utility model can also adopt the gear transmission or the chain sprocket drive of other form in fact; It needs only the transmission of not carrying out power between grade transmission shaft that implement device has the first order transmission shaft of power wheel and is connected with long bandage, reaches required seizing force and gets final product.Also have, ratchet, the locality of gear, what initiatively the locality of ratchet, passive ratchet also can be with shown in embodiment one each accompanying drawing is different, and it can be installed on the diverse location of take-up device, but still can obtain identical functions.

Claims

1. multistage transmission automotive safety take-up device; Comprise base assembly (1) and Handleset (2); It is characterized in that: described base assembly (1) and Handleset (2) connect through multistage transmission component (3); This multistage transmission component (3) include the base that is used to articulate base assembly (1) and Handleset (2) handle transmission shaft (25) and be used to twine the main shaft (28) on the base that is fixed in of long bandage (31); Transmission shaft is fixed with power wheel on (25), and the effect of this power wheel through base assembly (1) and Handleset (2) realizes bundling the required not rotary state of required rotary state, locking and discharge required idling conditions.

2. multistage transmission automotive safety take-up device as claimed in claim 1 is characterized in that: described power wheel is a ratchet (23); Described Handleset (2) comprises and is contained in the active ratchet (14) that cooperates with this ratchet (23) on the handle and acts on the active ratchet spring (17) on the ratchet (14) initiatively that described ratchet (23) realizes bundling required rotary state through the promotion of active ratchet (14).

3. according to claim 1 or claim 2 multistage transmission automotive safety take-up device; It is characterized in that: described base assembly (1) comprises base-mounted detent (10) and acts on the detent spring (11) on the detent (10); Detent (10) is the described power wheel of reverse blocking through the effect of detent spring (11), realizes the required not rotary state of power wheel locking.

4. multistage transmission automotive safety take-up device as claimed in claim 3 is characterized in that: described active ratchet (14) and the base-mounted detent (10) that is contained on the handle lays respectively at transmission shaft (25) when handle is not opened the same side; Described handle front portion is the cam-like (22) that can promote detent (10); Described base bilateral wall upper limb is formed with and can supplies the initiatively release groove (33) of the sunken card of ratchet (14), realizes that by this cam-like (22) front portion and release groove (33) power wheel discharges required idling conditions.

5. multistage transmission automotive safety take-up device as claimed in claim 2; It is characterized in that: described multistage transmission component (3) is a secondary transmission device; This transmission device also includes and the co-axially fixed driving gear of said ratchet (23) (24), and is fixed on the main shaft (28) and the ring gear (27) of this driving gear (24) engaged transmission.

6. multistage transmission automotive safety take-up device as claimed in claim 2; It is characterized in that: described multistage transmission device is the above transmission device of a secondary; This transmission device also includes and the co-axially fixed driving gear of ratchet (23) (24), and main shaft (28) is provided with final stage ring gear (27); Driving gear (23) is meshing with each other with the next stage ring gear, and the intergrade ring gear is fixed on the intergrade transmission shaft; Final stage ring gear (27) is meshing with each other with the upper class ring gear; Described intergrade drive shaft cartridge is on base.

7. multistage transmission automotive safety take-up device as claimed in claim 4; It is characterized in that: the handle of described Handleset (2) is constituted through handle fixed plate (19) and handle setting shaft (18) by two handle lateral plates (13), and two handle lateral plates (13) are gone up correspondence and had the hole that is used to be provided with said transmission shaft (25) and said active ratchet (14); Described handle fixed plate (19) is provided with three through holes; Can supplying to be arranged on initiatively, three pins at ratchet (14) rear portion pass; Wherein two pins on active ratchet (14) limit are connected with a handle (15) after passing corresponding through hole, pass cooresponding intermediate throughholes after middle pin puts described active ratchet spring (17).

8. multistage transmission automotive safety take-up device as claimed in claim 7; It is characterized in that: the base of described base assembly (1) is constituted through base fixed plate (7) and base anchor shaft (6) by two base lateral plates (4), and two base lateral plates (4) are gone up correspondence and had the hole that is used to be provided with said main shaft (28), said transmission shaft (25) and said detent (10); Described base fixed plate (7) is provided with a through hole, and a pin that can supply to be arranged on detent (10) rear portion passes; Described detent spring (11) is enclosed within on the pin at detent (10) rear portion, and two of spring withstands on respectively on base fixed plate (7) and the detent (10); Bolt (8) and nut (9) that spat (32) connects usefulness also are housed on the described two base lateral plates (4).

9. multistage transmission automotive safety take-up device as claimed in claim 5; It is characterized in that: ratchet (23) and driving gear (24) on the described transmission shaft (25) separate through a pad (26); This pad (26) is contained on main shaft (28) and the transmission shaft (25) simultaneously, has the through hole that can supply main shaft (28) and transmission shaft (25) to pass on it.