CN201166246Y

CN201166246Y - Telescopic brace rod

Info

Publication number: CN201166246Y
Application number: CNU2008200827160U
Authority: CN
Inventors: 胡东伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-01-24
Filing date: 2008-01-24
Publication date: 2008-12-17
Anticipated expiration: 2018-01-24

Abstract

The utility model relates to a telescopic brace strut which is capable of replacing a human hand to temporarily support or hold an object. The utility model aims at the defects of an existing telescopic brace strut that the bearing capacity is lower and the expansion action of an inner pipe is slow when in use, and provides a telescopic brace strut which has high bearing capacity and the expansion action of the inner pipe is rapid. The utility model comprises a top plate, a bottom plate, an inner pipe, a middle pipe, an outer pipe, a backstop mechanism and a driving mechanism, wherein the backstop mechanism comprises a nut with a knob, a backstop plate, a torsion spring and a backstop mechanism seat. The driving mechanism comprises a driving mechanism seat, a triple gear, a wrench, a spring, a ratchet driving plate, a ratchet backstop plate, a spring and a pressure plate, wherein the outer pipe wall of the inner pipe is equipped with a plurality of ring grooves, gear racks are arranged on the outer pipe wall of the middle pipe, the backstop mechanism seat on the backstop mechanism is fixed on the top portion of the middle pipe, and the driving mechanism seat on the driving mechanism is fixed on the top portion of the outer pipe.

Description

Telescopic expanding rod

Technical field

The utility model relates to a kind of strut that can stretch, particularly a kind of telescopic expanding rod that can replace the provisional support of staff or hold up object, and it belongs to the hardware ﹠ tools technical field.

Background technique

The existing telescopic expanding rod that is used to replace the provisional support of staff or hold up object generally is to adopt the structural type of three pipes to form, outer tube is a foot lever, middle pipe is the quick-expansion bar, interior pipe is strut, wherein, stopping mechanism is to adopt pin-and-hole formula structure, is to realize by the positioning hole that the latch insertion that is located in the stopping mechanism on the middle pipe is located on the inner pipe wall during relative position in fixing between the Guan Yuzhong pipe.In the use, it is less than normal that existing telescopic expanding rod exists bearing capacity, the slow deficiency of interior pipe expanding-contracting action.

Summary of the invention

The utility model is less than normal at the in use existing bearing capacity of existing telescopic expanding rod, and the slow deficiency of interior pipe expanding-contracting action provides a kind of bearing capacity big, the fast telescopic expanding rod of interior pipe expanding-contracting action.

The technical solution adopted in the utility model is finished in the following way: a kind of telescopic expanding rod, it comprises top board, base plate, interior pipe, middle pipe, outer tube, stopping mechanism, wherein, on the outer tube wall of interior pipe, be provided with some annular grooves, the top of pipe during stopping mechanism support on the stopping mechanism is fixed on is provided with the arc pawl that matches with annular groove on the interior pipe outer tube wall at the head of the retaining plate on the stopping mechanism.

In the structure of above-mentioned telescopic expanding rod, stopping mechanism is made up of band turn-knob nut, retaining plate, torsion spring, stopping mechanism support, bolt and bearing pin, wherein, the stopping mechanism support is sleeve shape, on the axis of stopping mechanism support, have pore, on the outer side wall of stopping mechanism support, be provided with a pair of lug, translot and straight trough, on the lug of stopping mechanism support, be provided with screw, on two cell walls of the straight trough of stopping mechanism support, be provided with pin shaft hole, middle part, the back side at retaining plate is provided with a pair of lug, is provided with pin shaft hole on lug; Torsion spring is contained in the inboard of retaining plate, retaining plate is contained in the straight trough of stopping mechanism support, bearing pin is inserted in the hole of the pin shaft hole of pin shaft hole, retaining plate of stopping mechanism support and torsion spring, the bearing pin two ends are fixed on two cell walls of straight trough of stopping mechanism support, arc pawl on the retaining plate head is inserted in the translot of stopping mechanism support, and the screw that bolt passes on the stopping mechanism support is combined together with band turn-knob nut.

In the structure of above-mentioned telescopic expanding rod, be provided with driving mechanism, on the outer tube wall of middle pipe, be provided with tooth bar, the driving mechanism support on the driving mechanism is fixed on the top of outer tube, the gear on the driving mechanism be located in the tooth bar of pipe on the outer tube wall match.

In the structure of above-mentioned telescopic expanding rod, driving mechanism is by the driving mechanism support, triple gear, spanner, spring, the ratchet drives plate, the ratchet retaining plate, spring, pressing plate, bearing pin and nut are formed, wherein, the driving mechanism support is sleeve shape, on the axis of driving mechanism support, have pore, on the outer side wall of driving mechanism support, be provided with the spanner seat, have pilot hole in spanner seat bottom, be provided with groove on spanner seat top, groove communicates with pore and pilot hole, on the two side of groove, be equipped with lug, on lug, be provided with pin shaft hole, be provided with the pressing plate positioning hole in spanner seat bottom, the pressing plate positioning hole communicates with pilot hole, triple gear is provided with a gear and two ratchets, two ratchets lay respectively on the both ends of the surface of gear, be provided with location key seat at middle part, the spanner back side, the head of spanner is provided with the pair of cams sheet, on the side of the cam bit of spanner, be provided with pin shaft hole, on the bi-side of spanner, be provided with ratchet drives plate chute, the head of ratchet drives plate is provided with the driving claw of arranging about two that matches with ratchet, and the head of ratchet retaining plate is provided with the retaining pawl of arranging about two that matches with ratchet; Triple gear is contained between two cam bits of Wrench head, the pair of cams sheet of Wrench head is contained in the groove of driving mechanism support, bearing pin is inserted in pin shaft hole on the driving mechanism support, the pin shaft hole and the pin shaft hole on the triple gear on the spanner, and the head and the nut of bearing pin are combined together; The ratchet drives plate is inserted on the ratchet drives plate chute of spanner, driving claw on the ratchet drives plate is against on the ratchet and the lug on the driving mechanism support of triple gear, on the location key seat of spanner, be provided with locating stud, spring is contained between the location key seat of ratchet drives plate and spanner, the ratchet retaining plate is inserted in the pilot hole on the driving mechanism support, retaining pawl on the ratchet retaining plate is against on the ratchet of triple gear, spring one end is fixed on the spring locating column of ratchet retaining plate afterbody, the spring the other end is against on the pressing plate, and pressing plate is inserted in the pressing plate positioning hole on the driving mechanism support.

When telescopic expanding rod raises, the required working depth of pipe in extracting out earlier, make the arc pawl of retaining plate head snap in location in the annular groove on the pipe; Be with the turn-knob nut that interior Guan Yuzhong pipe is tightened together by tightening, drive spanner then, make pipe and the upwards rising together of interior pipe in the gear rotation drive.

When telescopic expanding rod descends, spanner is upwards changeed, the cam bit by Wrench head with the driving claw on the ratchet drives plate break away from gear can make in pipe and interior pipe descend together, unclamp and be with the turn-knob nut, can make telescopic expanding rod drop to previous condition.

The utility model is compared with existing telescopic expanding rod, and it is big to have a bearing capacity, driving mechanism reliable operation, safety, quick during use, the strut fast characteristics of action that raise.The utility model is particularly suitable as and is used for house repairing and indoor decoration work, replaces the telescopic expanding rod of provisional support of staff or picking-up object.

Description of drawings

Fig. 1 is the structural representation of telescopic expanding rod.

Fig. 2 is the structural representation of stopping mechanism.

Fig. 3 is the exploded view of stopping mechanism.

Fig. 4 is the structural representation of driving mechanism.

Fig. 5 is the exploded view of driving mechanism.

Embodiment

Contrast accompanying drawing below, the utility model is described in further detail by embodiment.

With reference to accompanying drawing 1, a kind of telescopic expanding rod, it comprises top board 1, base plate 17, interior pipe 2, middle pipe 7, outer tube 16, driving mechanism and stopping mechanism, wherein, the upper end of pipe 2 in top board 1 is fixed on by universal joint, base plate 17 is fixed on the lower end of outer tube 16 by universal joint, the outer tube wall of interior pipe 2 is provided with some annular grooves 201, the outer tube wall of middle pipe 7 is provided with tooth bar 701, driving mechanism support 8 on the driving mechanism is fixed on the top of outer tube 16, the top of pipe 7 during stopping mechanism support 6 on the stopping mechanism is fixed on, in the pipe 7, outer tube 16 was enclosed within on the interior pipe 2 during interior pipe 2 was inserted in; Driving mechanism comprises driving mechanism support 8, triple gear 9, spanner 10, spring 11, ratchet drives plate 12, ratchet retaining plate 13, spring 14 and pressing plate 15; Stopping mechanism comprises band turn-knob nut 3, retaining plate 4, torsion spring 5 and stopping mechanism support 6.

With reference to accompanying drawing 2 and accompanying drawing 3, stopping mechanism is made up of band turn-knob nut 3, retaining plate 4, torsion spring 5, stopping mechanism support 6, bolt 18 and bearing pin 19, wherein, stopping mechanism support 6 is sleeve shape, on the axis of stopping mechanism support 6, have pore 601, on the outer side wall of stopping mechanism support 6, be provided with a pair of lug 602, translot 604 and straight trough 605, on the lug 602 of stopping mechanism support 6, be provided with screw 603, on two cell walls of the straight trough 605 of stopping mechanism support 6, be provided with pin shaft hole 606; Be provided with the arc pawl 401 that matches with annular groove 201 on interior pipe 2 outer tube walls at the head of retaining plate 4, be provided with a pair of lug 402, on lug 402, be provided with pin shaft hole 403 at the middle part, the back side of retaining plate 4.Torsion spring 5 is contained in the inboard of retaining plate 4, retaining plate 4 is contained in the straight trough 605 of stopping mechanism support 6, bearing pin 19 is inserted in the hole of the pin shaft hole 403 of pin shaft hole 606, retaining plate 4 of stopping mechanism support 6 and torsion spring 5, and bearing pin 19 two ends are fixed on two cell walls of straight trough 605 of stopping mechanism support 6; Arc pawl 401 on retaining plate 4 heads is inserted in the translot 604 of stopping mechanism support 6, and the screw 603 that bolt 18 passes on the stopping mechanism support 6 is combined together with band turn-knob nut 3.

With reference to accompanying drawing 4 and accompanying drawing 5, driving mechanism is by driving mechanism support 8, triple gear 9, spanner 10, spring 11, ratchet drives plate 12, ratchet retaining plate 13, spring 14, pressing plate 15, bearing pin 21 and nut 22 are formed, wherein, driving mechanism support 8 is sleeve shape, on the axis of driving mechanism support 8, have pore 804, on the outer side wall of driving mechanism support 8, be provided with spanner seat 801, have pilot hole 802 in spanner seat 801 bottoms, be provided with groove 807 on spanner seat 801 tops, groove 807 communicates with pore 804 and pilot hole 802, on the two side of groove 807, be equipped with lug 805, on lug 805, be provided with pin shaft hole 806, be provided with pressing plate positioning hole 803 in spanner seat 801 bottoms, pressing plate positioning hole 803 communicates with pilot hole 802; Triple gear 9 is provided with a gear 901 and two ratchets 902, and gear 901 matches with being located at middle tooth bar 701 of managing on 7, and two ratchets 902 lay respectively on the both ends of the surface of gear 901; Be provided with location key seat 1001 at spanner 10 back sides middle parts, the head of spanner 10 is provided with pair of cams sheet 1002, is provided with pin shaft hole 1003 on the side of the cam bit 1002 of spanner 10, is provided with ratchet drives plate chute 1004 on the bi-side of spanner 10; The head of ratchet drives plate 12 is provided with the driving claw of arranging about two 1201 that matches with ratchet 902, and the afterbody of ratchet drives plate 12 is provided with a spring locating column 1202; The head of ratchet retaining plate 13 is provided with the retaining pawl of arranging about two 1301 that matches with ratchet 902, and the afterbody of ratchet retaining plate 13 is provided with a spring locating column 1302.Triple gear 9 is contained between two cam bits 1002 of spanner 10 heads, the pair of cams sheet 1002 of spanner 10 heads is contained in the groove 807 of driving mechanism support 8, bearing pin 21 is inserted in pin shaft hole 806 on the driving mechanism support 8, the pin shaft hole 1003 and the pin shaft hole 903 on the triple gear 9 on the spanner 10, and the head of bearing pin 21 and nut 22 are combined together; Ratchet drives plate 12 is inserted on the ratchet drives plate chute 1004 of spanner 10, driving claw 1201 on the ratchet drives plate 12 is against on the ratchet 902 and the lug 805 on the driving mechanism support 8 of triple gear 9, on the location key seat 1001 of spanner 10, be provided with locating stud 20, spring 11 is contained between the location key seat 1001 of ratchet drives plate 12 and spanner 10, spring 11 1 ends are fixed on the spring locating column 1202 of ratchet drives plate 12 afterbodys, and spring 11 the other ends are fixed on the locating stud 20 on the location key seat 1001 of spanner 10; Ratchet retaining plate 13 is inserted in the pilot hole 802 on the driving mechanism support 8, retaining pawl 1301 on the ratchet retaining plate 13 is against on the ratchet 902 of triple gear 9, spring 14 1 ends are fixed on the spring locating column 1302 of ratchet retaining plate 13 afterbodys, spring 14 the other ends are against on the pressing plate 15, and pressing plate 15 is inserted in the pressing plate positioning hole 803 on the driving mechanism support 8.

Claims

1, a kind of telescopic expanding rod, it comprises top board, base plate, interior pipe, middle pipe, outer tube and stopping mechanism, it is characterized in that on the outer tube wall of interior pipe, being provided with some annular grooves, the top of pipe during stopping mechanism support on the stopping mechanism is fixed on is provided with the arc pawl that matches with annular groove on the interior pipe outer tube wall at the head of the retaining plate on the stopping mechanism.

2, telescopic expanding rod according to claim 1, it is characterized in that stopping mechanism is by being with turn-knob nut, retaining plate, torsion spring, stopping mechanism support, bolt and bearing pin to form, wherein, the stopping mechanism support is sleeve shape, on the axis of stopping mechanism support, have pore, on the outer side wall of stopping mechanism support, be provided with a pair of lug, translot and straight trough, on the lug of stopping mechanism support, be provided with screw, on two cell walls of the straight trough of stopping mechanism support, be provided with pin shaft hole, middle part, the back side at retaining plate is provided with a pair of lug, is provided with pin shaft hole on lug; Torsion spring is contained in the inboard of retaining plate, retaining plate is contained in the straight trough of stopping mechanism support, bearing pin is inserted in the hole of the pin shaft hole of pin shaft hole, retaining plate of stopping mechanism support and torsion spring, the bearing pin two ends are fixed on two cell walls of straight trough of stopping mechanism support, arc pawl on the retaining plate head is inserted in the translot of stopping mechanism support, and the screw that bolt passes on the stopping mechanism support is combined together with band turn-knob nut.