CN2412830Y

CN2412830Y - Double-action locking mechanism

Info

Publication number: CN2412830Y
Application number: CN 00217074
Authority: CN
Inventors: 金培聪
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-03-30
Filing date: 2000-03-30
Publication date: 2001-01-03
Anticipated expiration: 2010-03-30

Abstract

The utility model relates to a double-action locking mechanism, which comprises a rotating support member, a fixing basic member, left and right sector plates provided with arc-shaped grooves with grooves, positioning shafts passing through the arc-shaped grooves, regulating nuts respectively arranged on both ends of each positioning shaft, a locking cam which can pivot, a gasket arranged between the locking cam and the right sector plate, and tension springs for connecting a central shaft and the positioning shafts. The double-action locking mechanism is characterized in that a left supporting leg and a right supporting leg are respectively arranged on the positioning shafts corresponding to the arc-shaped grooves. The double-action locking mechanism has double actions of one piece locking and clamping, and can avoid error actions. The utility model has the advantages of simple structure and convenient and reliable operation, and can guarantee gliding safety in running.

Description

The double acting lockout mechanism

The utility model relates to a kind of lockout mechanism, relates to a kind of lockout mechanism that is used for folding device specifically.

Be used for folding device at present, for example the lockout mechanism on the body-building scooter is shown in Fig. 7 and 8, the mechanism that its location and shirking is made up of lifting Slip Hook 22, lifting shaft 20, center shaft 32 and lifting handle 19 extension springs 31 realizes, promptly when lifting handle 19 is in as shown in the figure A position, lifting Slip Hook 22 is thrown off hollow shafts 23, and hollow shaft is being positioned at its two ends under the effect of extension spring 31 in the groove 35 of deep-slotted chip breaker 34 of left and right sides quadrant 26,33; And the mechanism that its chucking locking is made up of hollow shaft 23, cam lock handle 28 and cam mandrel 29 realizes, promptly need work as described hollow shaft two ends when being positioned in the described groove, rotate lifting handle 28 by diagram C direction and act on the sidewall that packing ring 31 makes pipe assembly before the quadrant chucking of the left and right sides by its cam portion.Specifically, the location of preceding pipe assembly 21 is to be entered in groove G, the H at fan groove two ends of left quadrant 26 and right quadrant 33 by the effect that the cylinder of hollow shaft 23 is used extension spring 31 to locate as shown in the figure, and wherein G is the work positioning groove, and H is folding positioning groove.During use, at first clamp handle 28 is pulled end, as shown in Figure 8 to D.Because the effect catch gear off-load of cam 34.Rotate lifting handle 19 to B ends then, as shown in Figure 7.The lifting Slip Hook 22 that is connected in lifting shaft 20 just overcomes the resistance pressure picking-up hollow shaft 23 of extension spring 31, so that the cylinder of hollow shaft breaks away from the groove H of left quadrant 26 and right quadrant 33 simultaneously.At this moment, the fan groove 35 of the cylinder of hollow shaft 23 and two quadrants is in same bus, before promoting immediately pipe assembly 21 to control position, i.e. position as shown in Figure 7.Unclamp lifting handle 19 then, hollow shaft 23 promptly enters the groove G location of two quadrants automatically under the effect of extension spring 31.Pull lifting handle 28 to C ends then, as shown in Figure 8.Because the effect of cam 34 and screw rod 25, setting nut 24, packing ring 30 forces two quadrants to the relative direction deformation displacement, thereby the E face and the F face of preceding pipe assembly 21 tightened.When folding, still operation as stated above enters two quadrant groove H with hollow shaft 23 and is as the criterion, and pushes clamp handle 28 to C when promptly preceding pipe assembly and vehicle body are in a horizontal position and holds locking.As mentioned above, need adopt the different institutions coordinated manipulation to carry out owing to realize the function of location and chucking, such operation is cumbersome and be easy to generate misoperation, and assembly technology complexity, manufacturing cost height.

In view of the above problems, but the purpose of this utility model provides a kind of one that is used for folding device realizes locking and tighten double-acting lockout mechanism.

For achieving the above object, double acting lockout mechanism of the present utility model comprises: one has the rotatable support and a fixed base spare of two side; Be sticked respectively on the described sidewall and be fixed in left and right relatively quadrant on the described fixed base spare, described left and right sides quadrant is offered the deep-slotted chip breaker that contains a location groove respectively; One is located in the center shaft on rotatable support sidewall and the left and right sides quadrant; One passes the fix shaft of described sidewall and deep-slotted chip breaker at a certain distance with paralleling with it above described center shaft; Be separately positioned on the pivotable locking cam that the setting nut and at described fix shaft two ends is made up of operating handle and cam portion one; One is arranged on the packing ring between locking cam and the right quadrant; One connects the extension spring of described center shaft and fix shaft; Be characterized in, left spike, right spike be set on corresponding to the position of deep-slotted chip breaker respectively at fix shaft.

Adopt said structure, make locking cam be unloading condition when promoting operating handle, when promoting rotatable support, in the groove corresponding that the claw and the fix shaft of extension spring effect bottom left spike and right spike enters left and right sides quadrant synchronously, locate with it to deployed condition; Driving handle makes locking cam by packing ring effect two quadrants the medial surface of quadrant is out of shape to relative direction then, thereby will tighten with the side wall surface with the adjacent subsides of respective inner of rotatable support.Because the double acting of above-mentioned location of the present utility model and chucking is to realize by a cam clamping body, promptly an operating handle can play folding and lock the two-way function that tightens, the operator can misoperation, thereby guarantees folding device, for example the safe reliability of body-building scooter.

Below in conjunction with accompanying drawing a preferred embodiment of the present utility model is specifically described, so that know the purpose of this utility model and the characteristics understood.

Fig. 1 is that the double acting lockout mechanism of the utility model one embodiment is used for the part scheme drawing that assembly on the body-building scooter is in deployed condition;

Fig. 2 is the right elevation through semi-sictional view of Fig. 1;

Fig. 3 is the front view of locking cam of the double acting lockout mechanism of Fig. 1 embodiment;

Fig. 4 is the lateral plan of Fig. 3, and a cam mandrel and location axle head also are shown among the figure;

Fig. 5 is the scheme drawing that the assembly of Fig. 1 is in folded state;

Fig. 6 is the overall schematic of Fig. 1 assembly;

Fig. 7 is the scheme drawing that is used for the position and lock mechanism on the body-building scooter of prior art;

Fig. 8 is the right elevation through dissecing of Fig. 7.

As illustrated in fig. 1 and 2, the double acting lockout mechanism of the utility model one embodiment is used for a body-building scooter, and it comprises: one has rotatable support (being a preceding pipe assembly in the present embodiment) the 6 and one fixed base spare (being the vehicle body of scooter in the present embodiment) 14 of two side 15,16; Be sticked respectively on the sidewall 15,16 and be fixed in left and right relatively quadrant 2,8 on the described fixed base spare 14, left and right sides quadrant 2,8 is offered the deep-slotted chip breaker 18 that contains location groove 17 (see figure 5)s respectively; One is located in the sidewall 15,16 of rotatable support 6 and the center shaft 1 on the left and right sides quadrant 2,8; Certain distance passes the fix shaft 4 of sidewall 15,16 and deep-slotted chip breaker 18 with paralleling with it above center shaft 1; Be respectively arranged with left spike 5, setting nut 3 and right spike 10, packing ring 13 and locking cam 12 at the two ends of fix shaft 4; One operating handle 9 is integral by cam mandrel 11 with described locking cam 12 and is connected with axle head; One extension spring 7 connects center shaft 1 and fix shaft 4.Locking cam 12 is made up of cam portion 34 and operating handle 35 one, as shown in the figure, the line of centers of the line of centers of this cam portion 34 and cam mandrel 11 departs from a H distance, the middle body of the thickness direction of cam is offered groove 36 as shown in the figure, locking cam 12 can pivot around cam mandrel 11, so just can packing ring 13 be unclamped, and then sidewall 15,16 and quadrant 2,8 are got loose by rotating operation handle to A position; As operating handle 34 is turned to the B position, but packing washer then, and then quadrant 2,8 and sidewall 15,16 clamped.During use, at first driving handle 9 is to diagram A end position, as mentioned above, this moment, jam nut 12 was in unloading condition, pipe assembly 6 enters location in left and right sides quadrant 2,8 grooves 17 corresponding with it at the effect bottom left spike 5 of extension spring 7 and the claw 19 of right spike 10 with fix shaft 4 simultaneously synchronously to position shown in Figure 1 before promoting.Then, handle 9 is pushed into the B end position, at this moment since the medial surface position that above-mentioned two quadrants are forced in the effect of locking cam 12 all to the relative direction deformation displacement, like this, the E face of preceding pipe assembly 6 and F face are all tightly blocked by its pairing quadrant medial surface.Because mechanism has the double acting of location and locking chucking one, promptly all be to carry out the fixed and locking chucking in position by operating handle 9, therefore can avoid operator's misoperation, operate simple and easy reliably, can guarantee the safe reliability that the body-building scooter slides in any travels down.

Use when finishing, scooter can be by shown in Figure 5 folding.At first push handle 9 to A, as shown in Figure 2, even the lockout mechanism off-load.Then handle 9 is turned to C by D, as shown in Figure 1.At this moment, the claw 19 of left spike 5 and right spike 10 breaks away from the groove 17 of left and right sides quadrant simultaneously under the drive of fix shaft 4.Turn to vehicle body 14 directions up to terminal point preceding pipe assembly 6 this moment, and promptly preceding pipe assembly 6 is parastate with vehicle body.And then push handle 9 terminal of B to, promptly lockout mechanism is gripping orientation, as shown in Figure 2.

Claims

1. a double acting lockout mechanism comprises: one has the rotatable support and a fixed base spare of two side; Be sticked respectively on the described sidewall and be fixed in left and right relatively quadrant on the described fixed base spare, described left and right sides quadrant is offered the deep-slotted chip breaker that contains a location groove respectively; One is located in the center shaft on rotatable support sidewall and the left and right sides quadrant; One passes the fix shaft of described sidewall and deep-slotted chip breaker at a certain distance with paralleling with it above described center shaft; Be separately positioned on the pivotable locking cam that the setting nut and at described fix shaft two ends is made up of operating handle and cam portion one; One is arranged on the packing ring between locking cam and the right quadrant; One connects the extension spring of described center shaft and fix shaft; It is characterized in that, left spike, right spike are set on corresponding to the position of deep-slotted chip breaker respectively at described fix shaft.