CN2257814Y

CN2257814Y - Jack

Info

Publication number: CN2257814Y
Application number: CN 95213381
Authority: CN
Inventors: 金秀章; 邵勤国; 石为群
Original assignee: SHANGHAI WEILI MEDICAL APPLIANCES HARDWARE FACTORY
Current assignee: SHANGHAI WEILI MEDICAL APPLIANCES HARDWARE FACTORY
Priority date: 1995-07-06
Filing date: 1995-07-06
Publication date: 1997-07-16
Anticipated expiration: 2005-07-06

Abstract

The utility model relates to a screw rod type jack used for assembling and disassembling a tent during a journey and pushing a yacht lifting. The utility model comprises a jack outer pipe, a gear box provided with a transmission device, a rocker, a handle, and a fixing device arranged at the external side of the outer wall of the jack outer pipe, wherein the fixing device comprises a rotary plate, a fixing plate and a pulling handle. The jack outer pipe and the gear box are integrated into one unit. A transmission mechanism is a pair of bevel gears arranged on the upper part at the inner side of an outer pipe, and the bevel gears are connected with the rocker. The utility model has the advantages of simple structure, and practicality; a plane bearing can be used as a friction plate connected with a screw rod and a gear seat, the friction force is reduced, and the service life is prolonged. The pulling handle in the fixing device adopts the mode that the rotation angle of a pair of feet fixes the working position of the jack, and thus, the phenomenon that the original rotation angle of one foot is easy to jump out of rails is overcome.

Description

Jack

The utility model relates to a kind of jack, relate in particular to a kind of be used to travel take sieve rod-type jack that the fluffy and yacht of payment by a share of the takings hoists and promotes.

The jack that is suitable on the popular in the market tour utensil, though solved people in the difficulty that moves or install and remove aspect some heavy utensils, make the resettlement article light and handy, easily, but also have following shortcoming: 1. on the style, keep as usual on the structure always, do not have novelty; 2. transmission device and the partial installation of jack outer tube, waste material; 3. Friction disk adopts plastic sheet, and is easy to wear, and anti-wear ability is poor; 4. be fixed on the outer anchor fitting of jack outer tube wall, adopt one to change pin, poor stability.

The purpose of this utility model just provides reliably jack easily of a kind of structurally novel, light use.

The purpose of this utility model is achieved in that a kind of jack, comprising: a jack outer tube, is arranged on the gear case on outer tube top, in establish transmission device; Described transmission device comprises a pair of active and a driven bevel pinion and a bevel gear seat; One rocking bar, an end of rocking bar extend in the gear case and the axle of the active crowngear of transmission device is connected, and the other end is connected with handle outside gear case; Be provided with interior pipe in outer tube, with the screw mandrel that interior pipe is spirally connected, described screw mandrel top is provided with Friction disk; Be fixed on the anchor fitting on the outer tube outer wall waist, comprise: a flap, axle center adapter plate that be rotationally connected with flap, that captive joint with outer tube wall in the upper end, one with adapter plate on hole stretching bonded assembly pull handle.Described outer tube top correspondence is provided with a pair of slotted eye, and the top of slotted eye also correspondence is provided with a pair of axis hole; The pinion stand two ends correspondence of described transmission device is provided with a pair of wing, and respectively crossbearer is in the set a pair of slotted eye in outer tube top to the wing for this, and the driven bevel pinion of described transmission device is located on the pinion stand by its driven tooth umbrella wheel shaft; The driving bevel gear of described transmission device is erected in a pair of axis hole on outer tube top by its active umbrella gear shaft, makes the engagement of driving bevel gear and driven bevel pinion; The active umbrella gear shaft of described rocking bar one end and transmission device is connected, and the other end and handle are connected; Described friction lining is a surface bearing, is located between pinion stand and the screw mandrel; The bulge loop that described anchor fitting upper rotating plate central authorities have a stretching to come out; Two sides of described anchor fitting upper mounted plate are provided with the bracing frame that a relative in-flanges is " " shape, are respectively equipped with a hole above, and described hole is corresponding with position on the adapter plate base plate; Respectively be provided with the hole of the relevant position, hole on a pair of and the adapter plate base plate around the described flap; Pull handle on the described anchor fitting is "  " shape, and a pair of pin is arranged, and can be located in a pair of supporting seat hole set on the adapter plate with stretching.And extend in the hole of flap flexible with it the connection by the hole on the adapter plate base plate.

Concrete structure of the present utility model is provided by following embodiment and accompanying drawing thereof.

Fig. 1 is the integral structure scheme drawing of the utility model embodiment;

Fig. 2 is Fig. 1 back view;

Fig. 3 is the front elevation of anchor fitting;

Fig. 4 is the lateral plan of anchor fitting;

See also figure, the utility model jack is by outer tube 1, rocking bar 2, handle 3, drive mechanism 4, surface bearing 5, screw mandrel 6, and constitutes with interior pipe that screw mandrel is spirally connected.The gear case of outer tube and arrangement transmission device is an one.At a pair of slotted eye that outer tube wall top correspondence is established, the top of slotted eye also correspondence is provided with a pair of axis hole; Transmission device comprises: a pair of active and driven bevel pinion and a pinion stand.Transmission device 4 is located at the top in the outer tube 1, and wherein pinion stand 47 two ends correspondences are provided with a pair of wing, this to the wing respectively crossbearer in the set a pair of slotted eye in outer tube top; Driven bevel pinion 42 is sat by its driven bevel pinion axle and is located on the pinion stand 43; Driving bevel gear 41 is erected in a pair of axis hole on outer tube top by its active umbrella gear shaft, makes driving bevel gear 41 and driven bevel pinion 42 engagements.The active umbrella gear shaft of rocking bar one end and transmission device is connected, and the other end and handle 3 are connected.Be added with a Friction disk in order to reduce friction below the pinion stand 43 and between the screw mandrel 6, the Friction disk of present embodiment is a surface bearing 7, formed friction when reducing the screw mandrel action and between the pinion stand with this, and increase the service life.

On the jack outer tube wall, set firmly an anchor fitting 5,, and regulate use angle in order to the fixing jack of putting.This anchor fitting 5 is made of flap 51, adapter plate 52, pull handle 53.There is a macropore at flap 51 centers, and the ring 55 of the trough of belt of a circle protrusion is arranged around the hole, adopt drawing process to form, and four pairs of apertures are arranged around it; Also be provided with the diameter circular hole more bigger in adapter plate 52 central authorities than the ring on the flap 51, the circular hole of adapter plate central authorities and the bulge loop socket on the flap are also free to rotate, come off for making between adapter plate energy and the flap to rotate freely and to be unlikely to up and down around bulge loop, the bulge loop outside at flap is provided with a ring recess, there is a jump ring ring 54 to be located in the groove, block the unlikely up and down bulge loop of deviating from of adapter plate, on adapter plate, there are three limits upwards to turn over, form a carriage, there is a circular arc upper end of carriage 54, be connected with outer tube wall, can support, fixing jack.Other has two limits to form one " " shape bracing frame 57, and bracing frame 57 both sides respectively are provided with a hole, and two pin of pull handle 53 both sides just are punctured into adapter plate by pair of holes set on the bracing frame and to the flap in the corresponding hole, flexible with it connection.The unlikely bracing frame that skids off when pulling out for holding pull handle is being provided with buffer limit spring 56 under the hole on pull handle one batter, at bracing frame and between the adapter plate base plate at least.The hole that this limit spring is located at bracing frame is down and between the adapter plate base plate, and is enclosed within on the pin of pull handle.Under limit spring restriction, when pull handle is pulled out certain-length, the pull handle two-end-point is deviate from the hole of flap, and the rotational fixation plate drives jack and forwards needed position to then.Described rotation scalable jack is convenient to manipulate 90 °, 180 °, 270 °, 360 ° position.The waist of pull handle two side legs, be in hole on the stay bearing plate above respectively be provided with block, block that two pin of pull handle are unlikely to be stretched under any.

Claims

1. jack comprises:

One jack outer tube;

One is arranged on the gear case on outer tube top, in establish transmission device; Described transmission device comprises a pair of active and a driven bevel pinion and a pinion stand;

In outer tube, be provided with interior pipe, the screw mandrel that is spirally connected with interior pipe;

One is arranged on the Friction disk on screw mandrel top;

One rocking bar extend in the gear case and the active umbrella gear shaft of driving device is connected;

One handle is located at the other end of rocking bar;

One anchor fitting that is connected with the jack outer tube comprises: a flap, an adapter plate and a handle;

It is characterized in that:

Described outer tube wall top correspondence is provided with a pair of slotted eye, and the top of slotted eye also correspondence is provided with a pair of axis hole;

The pinion stand two ends correspondence of described transmission device is provided with a pair of wing, and respectively crossbearer is in the set a pair of slotted eye in outer tube top to the wing for this, and the driven bevel pinion of described transmission device is sat by its driven tooth umbrella wheel shaft and is located on the pinion stand;

The driving bevel gear of described transmission device is erected in a pair of axis hole on outer tube top by its active umbrella gear shaft, makes the engagement of driving bevel gear and driven bevel pinion;

The active umbrella gear shaft of described rocking bar one end and transmission device is connected, and the other end and handle are connected;

Described Friction disk is a surface bearing, is located between pinion stand and the screw mandrel;

The bulge loop that described anchor fitting upper rotating plate central authorities have a stretching to come out;

Two sides of described anchor fitting upper mounted plate are provided with the bracing frame that a relative upwards in-flanges is " " shape, are respectively equipped with a hole above, and described hole is corresponding with position on the adapter plate base plate;

Respectively be provided with the hole of the relevant position, hole on a pair of and the adapter plate base plate around the described flap;

Described pull handle is "  " type, and two pin at its two ends are crossed in the pair of holes of adapter plate upper support frame, and extend into by the hole on the adapter plate base plate in the hole of flap, flexible with it the connection.

2. jack according to claim 1 is characterized in that the circular hole of the adapter plate central authorities in the described anchor fitting and the bulge loop socket on the flap; The outside of described bulge loop is provided with a ring recess, has a snap ring to be fastened in the groove, and blocks that adapter plate is unlikely deviates from bulge loop.

3. jack according to claim 1 is characterized in that being provided with the buffer limit spring under the hole on pull handle one batter, at bracing frame and between the adapter plate base plate at least in the described anchor fitting.

4. jack according to claim 1 is characterized in that the waist of pull handle two side legs in the described anchor fitting, the top that is in hole on the stay bearing plate respectively are provided with block.