CN2616626Y

CN2616626Y - Tension lock

Info

Publication number: CN2616626Y
Application number: CN 03230632
Authority: CN
Inventors: 顾新虎
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-04-24
Filing date: 2003-04-24
Publication date: 2004-05-19
Anticipated expiration: 2013-04-24

Abstract

The utility model discloses a tension lock, which belongs to a technology field of tension lock making portable plate cross in a portable cold room. The utility model supplies a tension lock of reasonable structure, reliable work and long period of usage. An eccenter with an eccentric shaft is arranged inside the ring-shaped end part of a lock blade. Splints integrated with the eccenter are arranged on the two sides of the lock blade respectively. A positioning raised head is arranged on at least a side wall of the lock blade, correspondingly, nicks forces the relative rotation of the positioning raised head in are arranged at the side of the splint. After the structure is adopted, block rotation driven by the eccenter is realized through the conjunction of the nicks on the splint and the raised head at the side wall of the lock blade, as well as the friction force between the splint and the side wall of the lock blade. Consequently, the utility model overcomes the defect brought by the spring distortion, makes linkage between the eccenter and the lock blade uneasy to fail. The driving moment is wide which guarantees the long period reliable work of the tension lock. In addition, the thickness of the eccenter is relatively thin, which can be pressed by steels. As a conclusion, the fracture phenomenon during the weighted process can be avoided.

Description

Tension lock

Technical field

The utility model relates to a kind of lock, refers to that especially a kind of mobile freezer that is used for makes portable plate detain the technical field of poly-tension lock mutually.

Background technology

All adopt portable plate to surround around the existing mobile freezer, tension lock with inclined to one side mid point between portable plate and the portable plate fastens mutually, therefore, can movable freezer keep the temperature in the storehouse, key is the coupling mechanism force size of tension lock, and present tension lock comprises pinpoint lock and steel axle, described locking plate head is hook-type, afterbody in the form of a ring, in this ring-type afterbody, be provided with the eccentric cam tooth of aluminum, be provided with the spring that can make cam tooth and locking plate interlock between cam tooth and the locking plate inwall, camshaft is interior hexagon, makes integral piece with cam tooth.During installation, the composite member after cam tooth, spring and the locking plate assembling is installed in first pedestal, makes camshaft through pedestal two walls, so that operation, and the steel axle is installed in second pedestal, and match with the hook head of locking plate.During use, two pedestals are separately fixed on the mated position of adjacent portable plate, insert in the camshaft with Allen key, rotate Allen key, cam tooth is rotated, drive locking plate by spring and rotate, make the head of hook-type hook the steel axle earlier, be rotated further camshaft again, because the off-centre setting between camshaft and the lock wall afterbody, thereby this moment, the rotation of camshaft, produce eccentric force and make self-locking after the locking plate translation, the hook head pulling steel axle of locking plate is locked adjacent portable plate mutually.But said structure is in use found following defective: because cam tooth is that die-casting process forms, cause short texture in the processing, not fine and close and cause breaking of loading process easily, thereby application life is short, and the gap between cam tooth and the locking plate is big, and is malfunctioning easily; In addition, after a period of time service time, spring also can be owing to elastic deformation influences interlock between cam tooth and the locking plate, thereby influences its operate as normal.

Summary of the invention

Technical problem to be solved in the utility model is the defective that overcomes prior art, and the tension lock of a kind of rational in infrastructure, reliable operation, long service life is provided.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: this tension lock comprises that head is hook-type, afterbody locking plate in the form of a ring, it is characterized in that: the eccentric wheel that in described ring-type afterbody, is provided with the band eccentric shaft, be respectively arranged with and the fastening all-in-one-piece clamping plate of described eccentric wheel in described locking plate both sides, at least one sidewall of described locking plate is provided with the location plush copper, accordingly, have at the sidepiece of described clamping plate relatively rotating of this location plush copper is limited in wherein breach.

Described clamping plate lateral notch can be made of first, second ear shape projection institute of two space certain angles of its side.

Described clamping plate lateral notch also can be the interior breach that directly is stamped to form.

Described location plush copper can be at the affixed reference column of locking plate sidewall.

Described location plush copper also can form a single piece for the locking plate sidewall strikes out outer gibbosity at this place.

Described locking plate back is good to be provided with locating slot.

Compared with prior art, advantage of the present utility model is: after adopting said structure, since the plush copper of the rotation that eccentric wheel drives locking plate by the breach on the clamping plate and locking plate sidewall cooperate and the frictional force of clamping plate and the generation of locking plate sidewall realizes, therefore, it has overcome the defective that the spring distortion is brought, make that the interlock between eccentric wheel and the locking plate is not easy to failure, and rotating torque is big, thereby guarantees tension lock work reliably and with long-term; In addition, eccentric thickness is thinner relatively, can adopt steel to be stamped to form, so it need not die casting, short texture, the not fine and close and phenomenon that causes loading process to break also can not occur; In a word, the utility model is rational in infrastructure, and is easily manufactured, and service time is long.

Description of drawings

Fig. 1 is a perspective exploded view of the present utility model;

Fig. 2 is in the schematic diagram before the locking state when using for the utility model;

Fig. 3 is for being in the schematic diagram of locking state among Fig. 2;

The view of Fig. 4 when beginning to unblank among Fig. 3;

The view of Fig. 5 when unblanking to put in place among Fig. 4.

The specific embodiment

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

As shown in Figure 1, tension lock comprises that head 11 is hook-type, afterbody 12 locking plate 1 in the form of a ring, in described ring-type afterbody 12, be provided with the eccentric wheel 2 of band eccentric shaft 4, eccentric shaft 4 is interior hexagon, its with eccentric wheel 2 between adopt key to be connected with keyhole, be respectively arranged with clamping plate 3 in described locking plate 1 both sides, these two clamping plate 3 are tightened to one by two bolts and eccentric wheel 2 respectively, be fixed with the location plush copper on the sidewall of described locking plate 1, this location plush copper adopts and runs through the affixed reference column 13 of locking plate 1 sidewall, accordingly, have at the sidepiece of above-mentioned each piece clamping plate 3 relatively rotating of this reference column 13 is limited in wherein breach, in the present embodiment, this breach is by first of two space certain angles of clamping plate 3 sides, the second

ear shape projection

31,32 constitute.

In the process of unblanking,, also be provided with locating slot 14 at described locking plate 1 back in order to limit the inordinate rotation of locking plate 1.

During installation, composite member after eccentric wheel 2, eccentric shaft 4, clamping plate 3 and locking plate 1 assembling is installed in first pedestal 5, make two walls of eccentric shaft 4 through first pedestal 5, so that the operation of Allen key, and be provided with the block 8 that the locating slot 14 with locking plate 1 back matches in first pedestal 5 above eccentric shaft 4, in the present embodiment, this block 8 inwardly is stamped to form by first pedestal, 5 surfaces.Steel axle 7 is installed in second pedestal 6, and matches with the hook head 11 of locking plate 1.During use, first,

second pedestal

5,6 are separately fixed on the mated position of adjacent portable plate, insert in the eccentric shaft 4 with Allen key, rotate Allen key, eccentric shaft 4 is rotated, as shown in Figure 2, since the frictional force effect between clamping plate 3 and locking plate 1 sidewall and the first ear shape protruding 31 with the cooperating of reference column 13, driving locking plate 1 rotates, make the head 11 of hook-type hook steel axle 7 earlier, be rotated further eccentric shaft 4 again, because the off-centre setting between eccentric shaft 4 and the locking plate afterbody 12, thereby this moment, the rotation of eccentric shaft 4, the eccentric force of generation make locking plate 1 self-locking after the 5 side translations of first pedestal, and the hook head 11 of locking plate spurs steel axle 7 thereupon, adjacent portable plate is locked mutually, as shown in Figure 3.When unblanking, when initial rotation eccentric shaft 4, because hook head 11 hooks steel axle 7, make locking plate 1 to rotate thereupon, and can only be to the 6 side translations of second pedestal, as shown in Figure 4, after hook head 11 breaks away from steel axles 7, under the frictional force between clamping plate 3 and locking plate 1 sidewall and second ear shape projection 32 promotes reference column 13 effects on the locking plates 1, locking plate 1 is rotated and the purpose that realizes unblanking.When locking plate 1 turned to as shown in Figure 5 position, the locating piece 8 in the locating slot 14 at locking plate 1 back and first pedestal 6 interlocked, and stops being rotated further of locking plate 1.Like this, repetitive operation can make the portable plate of freezer assemble mutually and decompose.

Claims

1, a kind of tension lock, it comprises that head (11) is hook-type, afterbody (12) locking plate (1) in the form of a ring, it is characterized in that: the eccentric wheel (2) that in described ring-type afterbody (12), is provided with band eccentric shaft (4), be respectively arranged with and the fastening all-in-one-piece clamping plate of described eccentric wheel (2) (3) in described locking plate (1) both sides, at least one sidewall of described locking plate (1) is provided with the location plush copper, accordingly, have at the sidepiece of described clamping plate (3) relatively rotating of this location plush copper is limited in wherein breach.

2, tension lock according to claim 1 is characterized in that described clamping plate (3) lateral notch is made of first, second ear shape projection (31), (32) of two space certain angles of its side.

3, tension lock according to claim 1 is characterized in that the interior breach of described clamping plate (3) lateral notch for directly being stamped to form.

4,, it is characterized in that described location plush copper is at the affixed reference column of locking plate sidewall (13) according to claim 1 or 2 or 3 described tension locks.

5,, it is characterized in that described location plush copper is that locking plate (1) sidewall strikes out outer gibbosity at this place and forms a single piece according to claim 1 or 2 or 3 described tension locks.

6,, it is characterized in that described locking plate (1) back is provided with locating slot (14) according to claim 1 or 2 or 3 described tension locks.