CN2536354Y

CN2536354Y - Puller

Info

Publication number: CN2536354Y
Application number: CN 02216504
Authority: CN
Inventors: 江文兵; 黄春; 宋小军; 张晖
Original assignee: Shenzhen Zhongxing Communication Co Ltd Shanghai Second Research Institute
Current assignee: ZTE Corp
Priority date: 2002-03-29
Filing date: 2002-03-29
Publication date: 2003-02-19
Anticipated expiration: 2012-03-29

Abstract

The utility model discloses an extraction device of a tube-base printed circuit board, and comprises a fixed block, a handle, an extraction jaw, a spring, and a straight pin. The utility model is characterized in that a wrench is connected with the fixed block through the straight pin, the wrench takes the straight pin as a rotary shaft for achieving the extraction function of an extraction tool, the spring is mounted between the wrench and the fixed block, the wrench is guaranteed to be in the stationary state while the extraction tool is in the opening state and no shaking is provided, the wrench comprises the handle and the extraction jaw, the compound structure of the plastic part handle and the metal part extraction jaw is adopted, and a portion of the extraction jaw is mounted in an inner chamber of the handle. The extraction tool of the utility model is adopted, which cannot only satisfy the requirement of larger force moment when in extraction, but also can guarantee the wrench not to fracture. The adopted streamline design is in accordance with the CPCI standards, and can be widely applied to the panel design of the communication equipment and the electronic equipment.

Description

Driver-extractor

Affiliated technical field:

The utility model relates to a kind of pull-up that plugs printed circuit board (PCB), and driver-extractor especially of the present utility model is the general subrack single plate driver-extractor that meets COMPACTPCI design specification and IEEE std 1101.01.10-1996 standard-required.

Background technology:

Now the information fluxion handled of communication apparatus or electronic equipment is to high-density development, and the connector pointer densification on the subrack single plate needs the pull-up of big moment.From reaching development trend now, communication apparatus or electronic equipment subrack and plate design will progressively be unified for to design according to the CPCI standard, the equipment that makes has higher reliability, interchangeability, and cost is low, and required pull-up must meet the CPCI standard too.

At present, driver-extractor both domestic and external mainly contains two kinds: a kind of is overall plastic materials and parts spanner, and a pusher dog position is fragile, can not satisfy big moment requirement; Another kind is compound spanner, is made up of handle, a pusher dog, and handle is a working of plastics, and playing a pusher dog is metalwork, make that the strength ratio of spanner is preceding a kind of superior, but the structural design of its spanner is unreasonable, causes plastic handle than easy fracture.

Summary of the invention:

For the defective that the spanner that overcomes the prior art driver-extractor often damages, the utility model provides a kind of driver-extractor, and this driver-extractor had both satisfied the requirement that has big moment when pusher dog uses, and also guaranteed not easy fracture of spanner.

The technical scheme that its technical problem that solves the utility model adopts is:

Driver-extractor comprises: spanner, fixed block, straight pin, spring, be connected by straight pin between spanner and the fixed block, spanner is that rising of rotating shaft realization driver-extractor pulled out function with the straight pin, spring is installed between spanner and the fixed block, guarantee that driver-extractor makes spanner be in a stationary state in opening, do not rock; Spanner comprises handle and plays a pusher dog, adopts working of plastics handle and metalwork to play the composite structured of pusher dog, plays the pusher dog intracavity of handle of partly packing into.

Described fixed block has a barb, and when driver-extractor pushes printed circuit board (PCB) when putting in place, the elastic part of handle snaps in the barb of fixed block and keeps lock-out state.

A screwed hole is arranged on the described fixed block, and when driver-extractor put the printed circuit board (PCB) propelling movement in place, available captive screw was fixed on printed circuit board (PCB) in the subrack.

Anti-skidding groove is arranged at the bottom of described handle.

There is a static release pointer below of described fixed block.

The below of described fixed block has the anti-plug code block of miscoding to insert mouthful.

There are travel switch installation site and travel switch installing hole in the middle part of described fixed block.

The utility model is composite structured owing to having adopted, and handle is a working of plastics, can make moulding more attractive in appearance; Play pack into the degree of depth lengthening of handle of pusher dog, the moulding of spanner inner chamber is excessively even, rising when pulling out, and strong all having passed on the pusher dog, spanner can not rupture; The utility model is rational in infrastructure, and function and size meet the CPCI standard fully.

Description of drawings:

Fig. 1 is that the parts of the utility model driver-extractor are formed schematic diagram;

Fig. 2 is the structure key diagram of fixed block 1 in the utility model driver-extractor;

Fig. 3 is the utility model driver-extractor medi-spring 4 installation site figure;

Fig. 4 is the utility model driver-extractor actual user mode figure in subrack single plate;

Fig. 5 is the front view of the duty of the utility model driver-extractor;

Fig. 5-a is the lock-out state view;

Fig. 5-b is for extracting Status view;

The specific embodiment:

Further describe driver-extractor of the present utility model below in conjunction with accompanying drawing.

Fig. 1 is that the parts of the utility model driver-extractor are formed schematic diagram, and the parts of forming driver-extractor comprise: fixed block 1, handle 2 plays pusher dog 3, spring 4, straight pin 5.A handle 2 and a pusher dog 3 are formed compound spanner; Be connected by straight pin 5 between spanner and the fixed block 1, spanner is that rotating shaft realizes that rising of driver-extractor pull out function with straight pin 5; Spring 4 has guaranteed that driver-extractor makes spanner be in a stationary state in opening, does not rock.Spanner adopts compound design, plays pusher dog 3 by working of plastics handle 2 and pack alloy and constitutes, and has the elasticity of plastic products and can be made into beautiful outward appearance, has the high strength of metallic article again.Adopt airflow design in the moulding, anti-skidding groove is arranged at handle 2 bottoms, has been convenient to pull out.Play pack into the degree of depth lengthening of handle 2 of pusher dog 3, the moulding of spanner inner chamber is excessively even, rising when pulling out, and strong all having passed on the pusher dog 3, spanner can not rupture.

Fig. 2 is the structure key diagram of fixed block 1 in the utility model driver-extractor, an electrostatic discharge (ESD) pointer 21 is arranged below fixed block 1, static release pointer 21 contacts with metal grounding reed in the subrack guide rail when pushing, extracting the PCB veneer, to guarantee electrostatic leakage; The middle part design of fixed block 1 has the installation site 23 and the travel switch fixing hole 251,252 of travel switch, is used to install travel switch; Panel retaining thread hole 24 and pcb board retaining thread hole 22 have also been designed in the middle part of fixed block 1; Below fixed block 1, there is several anti-plugs code block of miscoding to insert mouthfuls 261,262,263, is used for the fool proof design of plate.

Fig. 3 is the utility model driver-extractor medi-spring 4 installation site figure, and spring is installed between spanner and the fixed block 1, and driver-extractor is positioned at open mode among the figure, and spring 4 makes spanner be in stress, does not rock.

Fig. 4 represents the utility model driver-extractor actual user mode in subrack single plate, and driver-extractor is connected and fixed by screw and panel 41 and pcb board 43, forms whole an of veneer.(or about) two kinds formed a cover about driver-extractor divided, wherein handle 2, to play pusher dog 3, spring 4, straight pin 5 be identical shared part, fixed block 1 be complete two symmetrical parts.Meet the standard-sized screwed hole of CPCI on the fixed block 1 in addition, when lock-out state, can veneer and subrack be fixed with captive screw 42.

Fig. 5 is the front view of duty of the present utility model, Fig. 5-a is the state that driver-extractor pushes PCB veneer 43 subrack and locking, it is rotating shaft with straight pin 5 that spanner has relied on pusher dog 3 to be stuck on subrack supporting plate or the front-axle beam 51, upwards firmly rotate, shift PCB veneer 43 position of design onto, rely on handle 2 top elastic parts to snap in the barb on fixed block 1 top and keep lock-out state; To be driver-extractor extract the state of subrack with PCB veneer 43 to Fig. 5-b, and it is rotating shaft with straight pin 5 that spanner has relied on pusher dog 3 to be stuck on subrack supporting plate or the front-axle beam 51, firmly rotates downwards, and PCB veneer 43 is extracted.

Claims

1. printed circuit board (PCB) driver-extractor, it is characterized in that, described driver-extractor comprises: spanner, fixed block, straight pin, spring, be connected by straight pin between spanner and the fixed block, spanner is that rising of rotating shaft realization driver-extractor pulled out function with the straight pin, spring is installed between spanner and the fixed block, guarantees that driver-extractor makes spanner be in a stationary state in opening, does not rock; Spanner comprises handle and plays a pusher dog, adopts working of plastics handle and metalwork to play the composite structured of pusher dog, plays the pusher dog intracavity of handle of partly packing into.

2. a kind of printed circuit board (PCB) driver-extractor according to claim 1 is characterized in that described fixed block has a barb, and when driver-extractor pushes printed circuit board (PCB) when putting in place, the elastic part of handle snaps in the barb of fixed block and keeps lock-out state.

3. a kind of printed circuit board (PCB) driver-extractor according to claim 1 is characterized in that, a screwed hole is arranged on the described fixed block, and when driver-extractor put the printed circuit board (PCB) propelling movement in place, available captive screw was fixed on printed circuit board (PCB) in the subrack.

4. according to claim 1 or 2 or 3 described a kind of printed circuit board (PCB) driver-extractors, it is characterized in that anti-skidding groove is arranged at the bottom of described handle.

5. according to claim 1 or 2 or 3 described a kind of printed circuit board (PCB) driver-extractors, it is characterized in that there is the static release pointer described fixed block below.

6. according to claim 1 or 2 or 3 described a kind of printed circuit board (PCB) driver-extractors, it is characterized in that the middle part of described fixed block has the anti-plug code block of miscoding to insert mouthful.

7. according to claim 1 or 2 or 3 described a kind of printed circuit board (PCB) driver-extractors, it is characterized in that there are a travel switch installation site and travel switch installing hole in the middle part of described fixed block.