CN201309142Y

CN201309142Y - Manual expander

Info

Publication number: CN201309142Y
Application number: CNU2008201756976U
Authority: CN
Inventors: 梁珪龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-11-10
Filing date: 2008-11-10
Publication date: 2009-09-16
Anticipated expiration: 2018-11-10

Abstract

The utility model provides a manual expander, and belongs to the class of manual tools. The manual expander comprises a double-stage driving system with a turbine worm couple and a screw slider couple, a sprocket, a chain, and a top support plate connected with the slider through a strut. When the top support plate of the expander is contact with an object to be supported, the chain is pulled; and through the rotation of the sprocket and the worm, the turbine and the screw are driven to conduct reversing rotation synchronously, and the bearing slider is driven to axially and oppositely slide synchronously, thereby driving the strut to change corresponding positions and achieving up-and-down slow movements of the top support plate. Through the double-stage driving system, the manual expander can achieve strong expansion; and when large power rescue equipment or tools cannot arrive at a field in time, or when the rescue space is limited, and power tools cannot conduct rescue effectively, the manual expander can play an emergency role in first time and reduce casualties and property loss as possible.

Description

Manual expander

Technical field

The utility model relates to a kind of manual expander, and the manual expander of particularly a kind of emergency of speedily carrying out rescue work belongs to the hand-operated tools class.

Background technology

At present, the transmission of power that fire-fighting is speedily carried out rescue work with expander adopts hydraulic drive or other machines power entirely, this makes that the volume of expander is too huge, and make its scope of application extremely restricted, and often the space of suing and labouring, disaster scene is very narrow and small, can't hold large-scale machine, Deng opening path, when power equipment can use, late, lives and properties had suffered merciless loss.

The utility model content

The purpose of this utility model provides a kind of manual expander, when being mainly used in burst fire-disaster, large-sized power rescue aid, facility can't in time arrive at the scene, or the limited space of suing and labouring, when can not the working power facility effectively suing and labouring, available this manual expander is brought into play emergencing action in the very first time, reduces casualties and property loss as far as possible.

The technical solution of the utility model is: a kind of manual expander, comprise the load-bearing base, and the upper surface of this load-bearing base is near the symmetrical affixed front and back of difference, outer rim place, both sides slide rail, weight supporting slide before and after being provided with respectively in this front and back slide rail; Outside front and back leading screw and front and back weight supporting slide flexibly connected, spindle nose was affixed with turbine respectively in the same way for its each end; This turbine is connected with worm-drive; An end and the sprocket wheel of described worm screw are affixed, dispose chain on this sprocket wheel; Strut and jacking plate and weight supporting slide are hinged.

Described front and back leading screw is a double end derotation leading screw, when one end is processed into T type right-handed thread, the other end must be processed as T type left hand thread, and the two ends screw thread all stops at the spacing distance of slide block at leading screw center, suitable with it, also be processed with T type right-handed thread hole and T type left handed threaded hole on the weight supporting slide of described front and back respectively.

Described chain strip adoption loop chain.

The utility model has adopted the secondary and secondary two-stage transmission of leading screw slide block of turbine and worm, can obtain very big gearratio, can realize powerful expansion, and all oppositely self-lockings of two-stage transmission, makes it be difficult for breaking down reliable operation; Drive by ring chain, the spatial constraints of being sued and laboured is few, to the good environmental adaptability of suing and labouring in addition; Again by two impetus up and down of expansion, be on the stressed perpendicular bisector of this expander good operating stability all the time; This expander initialization state is flat structure, is easy to implement expansion at small space, and the use flexibly in groups of visual field condition, whole expander part is few, in light weight, is convenient to retinue and carries.In a word, when large-sized power rescue aid, facility can't in time arrive at the scene, or the limited space of suing and labouring, when can not the working power facility effectively suing and labouring, available this manual expander is brought into play emergencing action in the very first time, reduces casualties and property loss as far as possible.

Description of drawings

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

Fig. 2 is the front view of the utility model original state;

Fig. 3 is the front view of the utility model jack-up state;

Fig. 4 is the utility model power transmission system structure schematic diagram.

The specific embodiment

With reference to the accompanying drawings the utility model is further described.

A kind of manual expander, comprise load-bearing base 1, the upper surface of this load-bearing base 1 is near the symmetrical affixed front and back of difference, outer rim place, both sides slide rail 2 and 3, and weight supporting slide 5 and 6 before and after being provided with respectively in this front and back slide rail 2 and 3 all is processed with T type self-locking thread hole on this front and back weight supporting slide 5 and 6; Front and back leading screw 7 and 8 is a double end derotation leading screw, and when an end was T type dextrorotation self-locking thread, the other end must be the left-handed self-locking thread of T type, and the two ends screw thread all stops at the spacing distance of slide block 4 places at leading screw 7 and 8 centers; The rotation direction of the thread rotary orientation of the T type screwed hole on the described front and back weight supporting slide 5 and 6 and the T type screw thread at front and back leading screw 7 and 8 two ends is suitable, and this front and back leading screw 7 and 8 passes the T type screwed hole on described front and back weight supporting slide 5 and 6 respectively and forms the screw threads motion with weight supporting slide 5 and 6 and is connected; Described front and back leading screw 7 and an end spindle nose of 8 respectively with turbine 9 with after 10 keys are connected, be installed in the bearing fixing in the bearing block that is fixed on the load-bearing base 1, other end spindle nose also is installed in the bearing fixing in the bearing block that is fixed on the load-bearing base 1, and, when described front and back leading screw 7 and 8 symmetries were installed, if the T type screw thread of its corresponding position was when being right-handed thread on the preceding leading screw 7, must be left hand thread on the back leading screw 8, its two ends are totally four sections T type screw thread relatively also reverse rotations mutually in twos; Described

turbine

9 and 10 and worm screw 11 be in transmission connection; The end of this worm screw 11 is connected with sprocket wheel 12 keys, and configuration chain 13 on the sprocket wheel 12, this chain 13 are preferred with the loop chain; The two ends spindle nose of described worm screw 11 all cooperates with dead eye, and this bearing is installed in the bearing block that is fixed on the load-bearing base 1; Strut 14 is all hinged with jacking plate 15 and weight supporting slide 5 and 6.

The utility model can be designed various other products of level according to the difference of expansionary force with different gearratios.

During work, the jacking plate 15 of this expander must contact with being held in the palm thing, then, pulling loop chain 13, by the rotation of sprocket wheel 12 and worm screw 11, drive

turbine

9,10 and leading screw 7 and 8 synchronous backwards and rotate, and drive the synchronous vertically in twos slide in opposition of weight supporting slide 5 and 6, change the relevant position thereby drive strut 14, realize the slowly motion up and down of jacking plate 15.

Claims

1, a kind of manual expander, it is characterized in that: comprise load-bearing base (1), the upper surface of this load-bearing base (1) is near outer rim place, both sides difference symmetrical affixed front and back slide rails (2) and (3), weight supporting slides (5) and (6) before and after being provided with respectively in this front and back slide rail (2) and (3); Outside front and back leading screws (7) and (8) flexibly connected with weight supporting slide (5) and (6) respectively, spindle nose was affixed with turbine (9) and (10) respectively in the same way for its each end; This turbine (9) and (10) are in transmission connection with worm screw (11); End of described worm screw (11) and sprocket wheel (12) are affixed, and this sprocket wheel (12) is gone up configuration chain (13); Strut (14) and jacking plate (15) and front and back weight supporting slide (5) and (6) are hinged.

2, manual expander according to claim 1, it is characterized in that: described front and back leading screws (7) and (8) are double end derotation leading screw, when one end is processed into T type right-handed thread, the other end must be processed as T type left hand thread, and the two ends screw thread all stops at the spacing distance of slide block (4) at leading screw (7) and (8) center and locates, suitable with it, also be processed with T type right-handed thread hole and T type left handed threaded hole respectively on described front and back weight supporting slides (5) and (6).

3, manual expander according to claim 1 and 2 is characterized in that: described chain (13) adopts loop chain.