CN2487196Y

CN2487196Y - Self locking joint device

Info

Publication number: CN2487196Y
Application number: CN 01246631
Authority: CN
Inventors: 顾键敏
Original assignee: Nokia Shanghai Bell Co Ltd
Current assignee: Nokia Shanghai Bell Co Ltd
Priority date: 2001-07-20
Filing date: 2001-07-20
Publication date: 2002-04-17
Anticipated expiration: 2011-07-20

Abstract

The utility model relates to a self locking joint device which comprises a connector with an insertion rod with a plurality of degrees of freedom, a cavity part connected with the connector and a wedge sliding block. The insertion rod of each degree of freedom is a square proximate matter, two inner surfaces of the insertion rod of each degree of freedom are respectively inclined planes having a contractive inclination along the direction of degree of freedom from a top block of the connector; two right-angle sides of the wedge sliding block are self-locking inclined planes matching with the two inner inclined surfaces of the square proximate matter of the insertion rod, the other two right-angle sides are concavo-convex sides; the top block of the connector are also provided with through holes along respective direction of degree of freedom; the wedge sliding block is placed in the district formed by the insert rod and the cavity part and makes the concavo-convex sides made self-locking connections with the cavity part, and the inclined plane of the wedge sliding block is made in a frictional and self-locking connection with the inner inclined surfaces of the square proximate matter. During the batch production, to take advantage of the structure of the utility model, the connection and the assembly of square proximate matters with accuracy and high efficiency can simply be done by assembling clamp equipment and external force stabilization equipment, thereby greatly decreasing the time of the connection and improving the production efficiency.

Description

A kind of self-locking piecing devices

(1) technical field

The utility model relates to electronics and communication rack equipment, specifically, relates to the self-locking piecing devices in the rack equipment.

(2) background technology

Current, to rack equipment angle hookup require be easy to assembly accurately, its joint connected mode commonly used has screw to fix or tight.As shown in Figure 1 be the connector fixing structure of using always.Joint 1 and coupled cavity spare 2 connect by screw thread S2 or fulcrum screw S1 fixes.When joint degree of freedom quantity for a long time, will expend the plenty of time and fix screw.Therefore, when being many insertion rods for angle hookup quantity, then expend in a large number artificial, and its installation accuracy and reliability be subjected to artificial factor bigger, and positional precision and fixing control are difficult, therefore are unfavorable for producing in enormous quantities.

(3) summary of the invention

The utility model purpose is to provide a kind of easy to assembly and joint design that reliability is easy to control.

A kind of self-locking piecing devices provided by the utility model, it comprises the joint with several degree of freedom insertion rods, coupled cavity spare, is characterized in, it also comprises a wedge slide block; Each degree of freedom insertion rod of described joint is the angle square section bar, and its two inner surface is the inclined-plane that is contraction-like inclination respectively by the joint jacking block along degree of freedom direction; Two right-angled side faces of described wedge slide block are that the table inclined-planes match and are the inclined-plane of self-locking state in the angle square section bar two with described insertion rod, its in addition two right-angled side faces be male and fomale(M﹠F); Also prolong each degree of freedom direction on the jacking block of described joint respectively and be provided with through hole; Described wedge slide block is placed in insertion rod and the formed zone of cavity spare, and its male and fomale(M﹠F) is connected with the self-locking of cavity spare, and its inclined-plane is connected with the interior table bevel friction self-locking of described angle square section bar.

Above-mentioned self-locking piecing devices, wherein, two inner surfaces of cavity spare with can also be connected by screw after the outer surface of described angle square section bar is sticked.

Above-mentioned self-locking piecing devices, wherein, male and fomale(M﹠F) can be a toothed surface.

Adopt above-mentioned technical solution, that is: joint is respectively the fixing contact of lateral surface cavity spare on each degree of freedom, and medial surface and wedge slide block self-locking locking; The slide block side utilizes self-locking locking, and the wedge slide block is that the inclined-plane contacts with inserting stalk, with the cavity bar be big CONTACT WITH FRICTION, make easy to assemblyly, reliability is easy to control.Especially in batch process, utilize structure of the present utility model, as long as assembling clamps equipment and decides external force equipment, the assembling angle that just can carry out the precise and high efficiency rate connects assembling, thereby significantly reduces the connection time, enhances productivity.

(4) description of drawings

Fig. 1 is a connector fixing structure schematic diagram commonly used at present;

Fig. 2 is the utility model decomposition texture schematic diagram;

Fig. 3 is the section structure schematic diagram of the single-degree-of-freedom of the utility model piecing devices;

Fig. 4 is the rectangular cross section structure schematic diagram of the utility model piecing devices single-degree-of-freedom;

Fig. 5 is the utility model locking state schematic diagram after applied external force.

(5) embodiment

As shown in Figure 3, utilize the section of the utility model joint single-degree-of-freedom to illustrate, the 1st, the joint insertion rod, the 2nd, coupled cavity spare, the 3rd, the wedge slide block, the 4th, add actuating rod.Diagram 1 and 2 has assembled, but non-locking.The 12 fixing full contacts of joint side, only root 13 contacts of slide block contact-making surface 11, insertion rod 1 has through hole 14, inserts joint inner plane 15 and has from the locking angle, wedge slide block 3 one side 32 and the interior inclined-plane 15 of insertion rod have identical from the locking angle, and another side has profile of tooth feature 31.

As shown in Figure 4, the joint square-section, joint has contact-making surface 5,7 and 6,8 respectively, and fixedly contact-making surface 5,6 is complete in no gap, and slide block contact-making surface 7,8 relies on wedge slide block compensate for clearance and locking.

As shown in Figure 5, joint is locked, adds on the outer refinement bar 4 to specify directed force F 1 on slide block 3, makes it stuck between insertion rod 1, cavity spare 2, and applied force F2 prevents from the insertion rod 1 simultaneously.Its principle is, what insertion rod had a directions X deviates from trend relatively, but wedge toothed surface frictional force is greater than sliding bevel, wedge 3 and

insertion rod

1,2 self-lockings of cavity spare, and joint 1 can not ease out.

As shown in Figure 2, the utility model embodiment, joint are the square-section joint.Joint has two insertion rods 1, can connect other parts respectively.Describe the connection process of left side section among the figure in detail, the insertion rod left side has self-locking bevel feature of the present utility model, at first slide block 3 is put into the opening of insertion rod 1, then with in the coupled rectangular enclosure spare 2 cover top connections 1, last outer refinement bar 4 is by the through hole 14 on the joint 1, afterburning on slide block 3, make it and

joint

1,2 lockings of coupled cavity spare.

Claims

1. self-locking piecing devices, it comprises the joint with several degree of freedom insertion rods, coupled cavity spare, it is characterized in that, it also comprises a wedge slide block; Each degree of freedom insertion rod of described joint is the angle square section bar, and its two inner surface is the inclined-plane that is contraction-like inclination respectively by the joint jacking block along degree of freedom direction; Two right-angled side faces of described wedge slide block are that the table inclined-planes match and are the inclined-plane of self-locking state in the angle square section bar two with described insertion rod, its in addition two right-angled side faces be male and fomale(M﹠F); Also prolong each degree of freedom direction on the jacking block of described joint respectively and be provided with through hole; Described wedge slide block is placed in insertion rod and the formed zone of cavity spare, and its male and fomale(M﹠F) is connected with the self-locking of cavity spare, and its inclined-plane is connected with the interior table bevel friction self-locking of described angle square section bar.

2. a kind of self-locking piecing devices according to claim 1 is characterized in that, two inner surfaces of described cavity spare with can also be connected by screw after the outer surface of described angle square section bar is sticked.

3. a kind of self-locking piecing devices according to claim 1 is characterized in that described male and fomale(M﹠F) can be a toothed surface.