CN202449432U

CN202449432U - Engine material frame

Info

Publication number: CN202449432U
Application number: CN2011205381853U
Authority: CN
Inventors: 王琼
Original assignee: SHANGHAI ZHONGDE METAL PRODUCTS CO Ltd
Current assignee: SHANGHAI ZHONGDE METAL PRODUCTS CO Ltd
Priority date: 2011-12-21
Filing date: 2011-12-21
Publication date: 2012-09-26
Anticipated expiration: 2021-12-21

Abstract

The utility model discloses an engine material frame, comprising at least one engine material frame assembly. The at least one engine material frame assembly comprises an undercarriage and a plurality of material frame trolleys, wherein the undercarriage is provided with a plurality of material frame trolley work stations, the plurality of material frame trolleys are correspondingly arranged in each material frame trolley work station, and each material frame trolley is correspondingly provided with an engine arrangement work station. The engine material frame disclosed by the utility model has the following advantages that (1) the conveyance of an engine is more convenient, faster and more labor-saving and largely reduces the labor intensity of operators through the material frame trolleys and the corresponding undercarriage; and (2) the engine material frame can simultaneously conveys various different specifications of engines so as to improve the conveyance efficiency and ensure the conveyance safety.

Description

A kind of engine material rest

Technical field

The utility model relates to a kind of material conveying arrangement, relates in particular to a kind of material frame of placing driving engine.

Background technology

Publication number is CN2928755, and open day is on August 1st, 2007, and the Chinese patent file that name is called " driving engine logistics bin " discloses a kind of patent driving engine logistics bin, and as shown in Figure 1, its best is made up of four layers of individual layer bin stack device.Said individual layer bin has a framework 6; Install on the framework and be connected with supporting member and the locations of placing driving engine; Four jiaos of framework are installed respectively and are connected the cornerite frame, in the cornerite frame by key pin 2 and bearing pin 3 respectively the said individual layer bin of head pile up the strut bar 1 of placement.Though this patent once can be loaded a plurality of driving engines, because its registration device location is inaccurate, abundant stationary engine in the transportation brings potential safety hazard easily.And the driving engine of polytypic can't be installed.

Publication number is CN101565119A; Open day is on October 28th, 2009; The Chinese patent file that name is called " engine material rest " discloses a kind of engine material rest, and this engine material rest can be placed many driving engines simultaneously according to place and transportation request, and on the relevant position of each driving engine placement station, sets up some three fixed positioning parts; Thereby make driving engine fully to be fixed on the bin, and the driving engine of polytypic can be installed.But after driving engine was transported to the appointed place, driving engine all need be pulled down from bin, through a dead lift, it was placed into assigned address.Along with the increase of a dead lift distance, the probability of the damage that being caused by fall, bump etc. appears in handling process in driving engine also increases thereupon, and a dead lift driving engine labor manpower not only, and its efficient is very low.

Summary of the invention

The purpose of the utility model provides a kind of engine material rest; This engine material rest should be in the driving engine that can transport a plurality of different model specifications safely; Solve each driving engine and need the artificial problem that is transported to assigned address; Thereby guarantee the transportation safety of driving engine, reduce staff's labour intensity, improve the conveying efficiency of driving engine.

According to the foregoing invention purpose, the utility model provides a kind of engine material rest, it comprises: at least one engine material rest assembly, this at least one engine material rest assembly comprises:

One underframe, underframe are provided with several bin dolly stations;

Several bin dollies, its correspondence are located in each bin dolly station, and equal correspondence is provided with a driving engine station is set on each bin dolly.

Above-mentioned engine material rest in use; Driving engine is provided with that station is used to place and the fixing driving engine of different model specification; Being mounted with the bin dolly of transmitting set can shift-in or shift out underframe; Thereby realize the transportation of driving engine, personnel's labour intensity is crossed in the work of greatly reducing, and has improved the conveying efficiency of driving engine.

Preferably, in above-mentioned engine material rest, the engine material rest assembly is several, and each engine material rest assembly is provided with on a vertical direction successively with stacking.This set mode can make full use of the space under the condition of limited of place, place or transport a large amount of driving engines.

Preferably, in above-mentioned engine material rest, the bin dolly comprises a little frame, and a pair of cardan wheel is located at the lower front portion of little frame, and a pair of directional wheel is located at the lower rear of little frame; Also be provided with a push-and-pull hand assembly and a driving engine positioning component on the little frame; This transmitting set positioning component comprises two fixed bearing and two tunable component bearings that are the diagonal angle setting basically of being the diagonal angle setting basically; Each tunable component bearing is provided with a regulating block, and two regulating blocks are set to relatively move to realize the locking of driving engine and to open; The lower rear of little frame also is provided with one first pin assembly, and it comprises one first locating dowel pin, moves with go into operation at a dozen position and a locking and switches between the station but first locating dowel pin is set in the vertical direction; When the driving engine on the bin dolly of need driving engine being packed into is provided with station; Assurance two regulating blocks relatively move and are open mode earlier; Then driving engine is put into driving engine station is set, make two regulating blocks move to the locking station in opposite directions again, thereby driving engine is locked on the bin dolly; Need to prove; Two regulating blocks relatively move to realize to the locking of driving engine and to open and can realize through multiple transmission device and driver train that so this paper gives an example at this no longer one by one, the embodiment of hereinafter has just specifically introduced a kind of implementation.

In above-mentioned engine material rest; Underframe is a framed structure, and several bin dolly stations are divided into two rows, is that axis of symmetry is arranged on the underframe symmetrically with a crossbeam; Each bin dolly station all has an arrival end and one and the closed end that is oppositely arranged of this arrival end; Said crossbeam is arranged at closed end, arrival end be provided with one with the baffle plate of the corresponding setting of first locating dowel pin, when first locating dowel pin is in the locking station; Its lower end correspondence is located in the baffle plate, thereby prevents that the bin dolly from skidding off bin dolly station; When first locating dowel pin is in when opening station, baffle plate is left in its lower end, and this moment, the bin dolly can be pulled out bin dolly station.That is to say that first locating dowel pin and baffle plate rise with cooperatively interacting the bin dolly is locked in the bin dolly station, or the effect that the bin dolly is discharged in bin dolly station.

Preferably, in above-mentioned engine material rest, first pin assembly also comprises one second pedal; Second pedal is connected with first locating dowel pin through coupling assembling, so that second pedal is when depressing, first locating dowel pin is in opens station; When second pedal lifted, first locating dowel pin was in the locking station.

Preferably; In above-mentioned engine material rest; The position of the both sides of each bin dolly station, the side of corresponding little frame is respectively equipped with a side guide plate, and said each side guide plate and said crossbeam basically vertically are provided with, and this side guide plate leads when bin dolly turnover bin dolly station; And carry out spacing to bin dolly rocking on the left and right directions direction of both sides (promptly towards); In addition, because this side guide plate and crossbeam basically vertically be provided with, so it also plays the effect that the structure of whole underframe is strengthened; Also be provided with a pressing plate on the side guide plate, pressing plate is protruding from the side guide plate, to prevent bin dolly rocking on above-below direction;

In addition; The position of the both sides of each bin dolly station, corresponding cardan wheel and directional wheel also is respectively equipped with a cardan wheel guide plate and a cardan wheel position-limiting tube; This cardan wheel guide plate leads to cardan wheel when bin dolly turnover bin dolly station; Cardan wheel position-limiting tube (a for example spacing round steel) can carry out spacing when bin dolly turnover bin dolly station to cardan wheel, prevent that it from twisting.

Preferably, in above-mentioned engine material rest, closed end also is equipped with at least one positioning plate, and positioning plate vertically or basically vertically is arranged on the crossbeam.

Preferably, in above-mentioned engine material rest, underframe is a quadrilateral structure; Offer groove on the frame of quadrilateral structure, four jiaos of quadrilateral structure also are equipped with a column, and each column is set to and can rotates between a vertical station and a horizontal station, to switch around the rotating shaft of its tail end; When column is in vertical station; Its plane with underframe place is vertical, and when column was in horizontal station, its correspondence was located in the groove on the quadrilateral structure frame.When a plurality of engine material rest assemblies stacked up and down, column can provide necessary height for the bin dolly on the underframe and driving engine.When an engine material rest individual layer is placed, column is positioned over horizontal station can saves the space.

Preferably, in above-mentioned engine material rest, push-and-pull hand assembly comprises:

Two vertical bars, it vertically is arranged on the little frame, all offers groove on each vertical bar;

The handle of one C type, its lower end hinged with the upper end of vertical bar so that its can rotate in the corresponding groove that is arranged on the vertical bar in 180 degree backs around jointed shaft.Push-and-pull hand assembly is convenient to work and is crossed personnel and force in the bin dolly, and this folding set-up mode of C type handle also helps saving the space simultaneously.

Preferably; In above-mentioned engine material rest; The bin dolly also comprises a draw bar assembly and one and the draw bar locked component of draw bar component liaison, and said draw bar assembly is located at the front end of little frame, and said draw bar locked component is located at the rear end of little frame; Wherein:

The draw bar assembly comprises a U type draw bar, and itself and little frame are hinged, to switch between horizontal station of a draw bar and the vertical station of a draw bar around jointed shaft;

The draw bar locked component comprises:

One with the cooresponding U type of U type draw bar groove;

One horizontally disposed locking rotating shaft;

One first pedal, it is captiveed joint with the locking rotating shaft, on cw or anticlockwise direction, rotates around himself axle center with the driven locking rotating shaft;

One stop pin, it is captiveed joint with the locking rotating shaft, and stop pin is set to its lower end along with the bottom surface that be rotated away from or contact U type groove of locking rotating shaft on cw or anticlockwise direction.

Above-mentioned draw bar assembly and the draw bar locked component that is mated are in order to realize at least two connection and disconnections between the bin dolly.When transport driving engine in the zone of bin dolly outside underframe; Can with corresponding draw bar locked component many bin dollies be connected front and back each other through the draw bar assembly; Thereby realization just spurs or promotes the purpose of many bin dollies simultaneously only with a traction.At this moment, the U type draw bar that need will be positioned at the bin dolly at rear turns to horizontal station, simultaneously the application of force on first pedal of the bin dolly that is positioned at the place ahead; So that driving the locking rotating shaft, first pedal rotates; Drive the bottom surface that be rotated away from U type groove of the lower end of stop pin simultaneously, so just can the U type draw bar of rear bin dolly be inserted in the U type groove of the place ahead bin dolly, remove the power (having predetermincd tension in the locking rotating shaft) that puts on first pedal this moment along with the locking rotating shaft; Or apply a reciprocal power; The locking rotating shaft is rotated on reversing sense, be inserted in the U type space in the U type draw bar thereby drive stop pin once more, and contact with the bottom surface of U type groove; Thereby accomplish the locking to U type draw bar, two the bin dollies in front and back just are connected together like this.Same reason when needs separate two bin dollies connected to one another, only need make stop pin leave U type groove bottom once more, from U type groove, withdraws from U type draw bar just passable.

In the time need the bin dolly being pushed the bin dolly station on the underframe, get into bin dolly station fully in order to make the bin dolly, need U type draw bar be turned to vertical station.

The described engine material rest of the utility model has the following advantages than existing engine material rest:

(1) adopts the described engine material rest of the utility model through bin dolly and corresponding underframe are set, make that the transportation of driving engine is convenient, quick and laborsaving, greatly reduce operating personnel's labour intensity;

(2) the described engine material rest of the utility model can transport the driving engine of many different model specifications simultaneously, thereby has improved conveying efficiency, and can guarantee transportation safety.

Description of drawings

Fig. 1 is the structural representation of a kind of engine material rest of the prior art.

Fig. 2 is the structural representation of the described engine material rest of the utility model under a kind of embodiment.

Fig. 3 is the described engine material rest of the utility model structural representation of underframe in one embodiment.

Fig. 4 is the described engine material rest of the utility model topology view of bin dolly in one embodiment.

Fig. 5 is another visual angle view of Fig. 4.

Fig. 6 is the described engine material rest of the utility model structural representation of the connecting rod mechanism in the driving engine positioning component in one embodiment.

Fig. 7 is the described engine material rest of a utility model structural representation in another embodiment.

The specific embodiment

To combine Figure of description and concrete embodiment that the described engine material rest of the utility model is done further detailed description below.

Embodiment 1

Fig. 2 has shown the described engine material rest of the utility model structure in the present embodiment.As shown in Figure 2, engine material rest has an engine material rest assembly in the present embodiment, and this engine material rest assembly comprises a underframe 200 and six bin dollies 100.This underframe 200 is provided with six bin dolly stations, and six bin dollies 100 are divided into two rows, is located at symmetrically respectively in the bin dolly station of underframe 200.

Fig. 3 has shown the described engine material rest of the utility model structure of underframe in one embodiment.As shown in Figure 3, underframe is the quadrilateral frame shelf structure, and six bin dolly stations 202 are divided into two rows; With crossbeam 203 is that axis of symmetry is arranged on the underframe symmetrically, the closed end that each bin dolly station 202 all has arrival end and is oppositely arranged with this arrival end, and crossbeam 203 is arranged at closed end; Positioning plate 209 is arranged on the crossbeam 203 vertically, and arrival end is provided with baffle plate 206, and is as shown in Figure 3; In the present embodiment, baffle plate 206 forms a groove shape.Position at the side of the both sides of each bin dolly station 202, corresponding little frame is respectively equipped with side guide plate 204, and side guide plate 204 is provided with pressing plate 205, and pressing plate 205 is protruding from side guide plate 204; The position of the both sides of each bin dolly station 202, corresponding cardan wheel and directional wheel also is respectively equipped with cardan wheel guide plate 207 and cardan wheel position-limiting tube (round steel) 208; Cardan wheel guide plate 207 is in order to lead to cardan wheel; Cardan wheel position-limiting tube 208 is spacing in order to cardan wheel is carried out, and prevents that it from reversing.In addition, offer groove on the frame of underframe, four jiaos of the quadrilateral frame shelf structure also are equipped with column 201; Each column 201 can rotate vertically to switch between station and horizontal station around the rotating shaft of its tail end; When column 201 was in vertical station, its plane with the underframe place was vertical, when column 201 is in horizontal station; Its correspondence is located in the groove on the quadrilateral frame shelf structure frame, thereby has saved the space.

Fig. 4, Fig. 5 are the spatial structure view of bin dolly two different visual angles.Fig. 6 has shown the structure of the connecting rod mechanism in the driving engine positioning component on the bin dolly.Like Fig. 4, shown in Figure 5, the bin dolly comprises little frame, and little frame is provided with a driving engine station 101 is set; A pair of cardan wheel 102 is located at the lower front portion of little frame, and a pair of directional wheel 103 is located at the lower rear of little frame; Also be provided with on the little frame push-and-pull hand assembly, driving engine positioning component, first pin assembly and draw bar assembly and with the draw bar locked component of draw bar component liaison, wherein:

Push-and-pull hand assembly comprises two vertical bars 105, and it vertically is arranged on the little frame, all offers groove on each vertical bar; The handle 104 of C type, its lower end is hinged with the upper end of vertical bar so that it can rotate in the corresponding groove that is arranged on the vertical bar 105 in 180 degree backs around jointed shaft, when the handle 104 of C type places in the groove on the vertical bar 105 foldedly, can save the space.

The driving engine positioning component comprises two fixed bearing 107 and two tunable component bearings 108 that are the diagonal angle setting basically of being the diagonal angle setting basically, and each tunable component bearing 108 is provided with regulating block 109; The driving engine positioning component also comprises a transmission component, and this transmission component can make two regulating blocks 109 relatively move to realize the locking of driving engine and to open; Transmission component comprises 114, two fork 110a of pedal, 110b, and a connecting rod mechanism (not shown in the Figure 4 and 5); Fork 110a, the 110b of two horizontally sets are captiveed joint with the tail end of two swing arms 113 respectively, and the head end of swing arm 113 and two regulating blocks 109 are hinged; Connecting rod mechanism is as shown in Figure 6; It comprises two link rod 112a that vertically are provided with, 112b and a rotation maincenter connecting rod 111 that connects

link rod

112a, 112b; And whole connecting rod mechanism with and action all be centrosymmetric with the center shaft of rotation maincenter connecting rod 111; The A end of

link rod

112a and 112b is connected with 110b through the self-corresponding fork 110a of another one swing arm (not shown) and each respectively, and its B end is hinged with the maincenter of rotation connecting rod 111, and an end of two extension spring bars 118 is hinged with the maincenter of rotation connecting rod 111; The other end of extension spring bar 118 is connected with the dolly framework through an extension spring respectively, so that predetermincd tension to be provided.If in the time of need opening driving engine, step on down pedal 114 driving pendulum rod 110a (driving lever) and rotate, fork 110a drives fork 110b and fork 110a backward rotation through connected connecting rod mechanism; Thereby drive two regulating blocks 109 and oppositely move (promptly bouncing back in the tunable component bearing 108); Can put into the driving engine station this moment with driving engine, or transmitting set is shifted out from the transmitting set station, unclamps pedal 114 then; Fork 110b and fork 110a can be under the effects of initial tension of spring; Rotate in opposite directions, move (promptly from tunable component bearing 108, stretching out) in opposite directions thereby drive two regulating blocks 109, to realize locking to driving engine.

Need to prove; The just for example clear a kind of drive mechanism of realizing that two regulating blocks 109 relatively move of preceding text; Not as to the restriction of present technique scheme, other can realize that structure that two regulating blocks 109 relatively move is also in the protection domain of present technique scheme.

In the present embodiment, first pin assembly is located at the lower rear of little frame, and itself and baffle plate 206 are used, and realizes locking and the release of bin dolly in bin dolly station.This first pin assembly has predetermincd tension; Second pedal 117 is connected with first locating dowel pin (invisible among the figure) through coupling assembling (invisible among the figure), and when second pedal 117 was depressed, first locating dowel pin is in opened station; Its lower end is higher than the upper end of baffle plate 206; The bin dolly can get into bin dolly station or in bin dolly station, shifted out this moment, when the power that is applied on second pedal 117 is removed, when promptly second pedal 117 lifts; The lower end of first locating dowel pin can be moved downward under the effect of predetermincd tension below baffle plate 206 upper ends, thereby cooperate with baffle plate 206 the bin dolly is locked in the bin dolly station.

Draw bar assembly in the present embodiment comprises U type draw bar 106; It is hinged through a jointed shaft and little frame; This U type draw bar 106 can switch between horizontal station and vertical station around jointed shaft; When U type draw bar 106 turned to horizontal station, the catch that is fixedly installed on correspondence position on the little frame can stop U type draw bar 106 further to rotate, when U type draw bar 106 turns to vertical station; Bulb plunger positioning component can be positioned at vertical station with U type draw bar 106, prevents that it from dropping.

Draw bar locked component in the present embodiment comprises and U type draw bar 106 cooresponding U type grooves 115, horizontally disposed locking rotating shaft 116, first pedal 119 of captiveing joint with locking rotating shaft 116, and the stop pin 120 of locking rotating shaft 116 captive joints.When needs are connected a bin dolly with another bin dolly; U type draw bar 106 with rear bin dolly turns to horizontal station earlier; Step on first pedal 119 of inferoanterior bin dolly then, make stop pin 120 leave the bottom surface of U type groove 115, then in the U type groove 115 with U type draw bar 106 insertion the place ahead bin dollies of rear bin dolly; Unclamp first pedal 119 again; This moment, stop pin 120 meetings contact the bottom surface of U type groove 115 again under the effect of predetermincd tension, thereby U type draw bar 106 is locked in the U type groove 115, realized the firm connection between the bin dolly.Same reason when needing to remove the connection between the bin dolly, only need be stepped on down first pedal 119, and U type draw bar 106 is extracted out from U type groove 115.

In conjunction with Fig. 2 to Fig. 5; When bin dolly 100 need be packed underframe 200 into; Need make U type draw bar 106 be in vertical station, and step on down second pedal 117 and first locating dowel pin is in open station, then the bin dolly is pushed in the bin dolly station; Touch positioning plate 209 until bin dolly 100; Bin dolly 100 gets in the bin dolly station 202 of underframe 200 fully at this moment, unclamps second pedal 117 then and makes the locating dowel pin of winning under the effect of predetermincd tension, be in the locking station again, thereby be locked in the bin dolly station 202 with bin dolly 100.If need bin dolly 100 is shifted out from underframe 200, only need once more second pedal 117 to be stepped on down, make locating dowel pin be in and open station that just can pull out bin dolly 100 this moment from underframe 200.

Embodiment 2

Fig. 7 has shown the described engine material rest of the utility model structure in the present embodiment.As shown in Figure 7, the engine material rest in the present embodiment has two like embodiment 1 described engine material rest assembly, and stacks through the column that is in vertical station on the underframe, thereby has practiced thrift the shared space of engine material rest.The structure of the engine material rest assembly in the present embodiment is identical with engine material rest assembly among the embodiment 1.

Be noted that the above specific embodiment of enumerating that is merely the utility model, obviously the utility model is not limited to above embodiment, and many similar variations are arranged thereupon.If those skilled in the art from all distortion that the disclosed content of the utility model directly derives or associates, all should belong to the protection domain of the utility model.

Claims

1. an engine material rest is characterized in that, comprising: at least one engine material rest assembly, and said at least one engine material rest assembly comprises:

One underframe, said underframe are provided with several bin dolly stations;

Several bin dollies, its correspondence are located in said each bin dolly station, and equal correspondence is provided with a driving engine station is set on said each bin dolly.

2. engine material rest as claimed in claim 1 is characterized in that, said engine material rest assembly is several, and said each engine material rest assembly is provided with on a vertical direction successively with stacking.

3. according to claim 1 or claim 2 engine material rest is characterized in that:

Said bin dolly comprises a little frame, and a pair of cardan wheel is located at the lower front portion of said little frame, and a pair of directional wheel is located at the lower rear of said little frame; Also be provided with a push-and-pull hand assembly and a driving engine positioning component on the said little frame; This transmitting set positioning component comprises two fixed bearing and two tunable component bearings that are the diagonal angle setting basically of being the diagonal angle setting basically; Said each tunable component bearing is provided with a regulating block, and said two regulating blocks are set to relatively move to realize the locking of driving engine and to open; The lower rear of said little frame also is provided with one first pin assembly, and it comprises one first locating dowel pin, moves with go into operation at a dozen position and a locking and switches between the station but said first locating dowel pin is set in the vertical direction;

Said underframe is a framed structure; Several bin dolly stations are divided into two rows, are that axis of symmetry is arranged on the underframe symmetrically with a crossbeam, and said each bin dolly station all has an arrival end and one and the closed end that is oppositely arranged of this arrival end; Said crossbeam is arranged at closed end; Said arrival end be provided with one with the baffle plate of the corresponding setting of said first locating dowel pin, when first locating dowel pin was in said locking station, its lower end correspondence was located in the said baffle plate; When first locating dowel pin is in saidly when opening station, said baffle plate is left in its lower end.

4. engine material rest as claimed in claim 3 is characterized in that:

The position of the both sides of said each bin dolly station, the side of corresponding little frame is respectively equipped with a side guide plate, and said each side guide plate and said crossbeam basically vertically are provided with; Also be provided with a pressing plate on the said side guide plate, said pressing plate is protruding from the side guide plate;

The position of the both sides of said each bin dolly station, corresponding cardan wheel and directional wheel also is respectively equipped with a cardan wheel guide plate and a cardan wheel position-limiting tube.

5. engine material rest as claimed in claim 3 is characterized in that said closed end also is equipped with at least one positioning plate, and said positioning plate vertically or basically vertically is arranged on the crossbeam.

6. engine material rest as claimed in claim 3; It is characterized in that said underframe is a quadrilateral structure, offers groove on the frame of said quadrilateral structure; Four jiaos of said quadrilateral structure also are equipped with a column; Each column is set to and can rotates between a vertical station and a horizontal station, switching around the rotating shaft of its tail end, and when said column was in vertical station, it was vertical with plane that underframe belongs to; When said column was in horizontal station, its correspondence was located in the groove on the quadrilateral structure frame.

7. engine material rest as claimed in claim 3 is characterized in that, said push-and-pull hand assembly comprises:

Two vertical bars, it vertically is arranged on the said little frame, all offers groove on said each vertical bar;

The handle of one C type, its lower end hinged with the upper end of said vertical bar so that its can rotate in the corresponding groove that is arranged on the vertical bar in 180 degree backs around jointed shaft.

8. engine material rest as claimed in claim 3; It is characterized in that; Said bin dolly also comprises a draw bar assembly and one and the draw bar locked component of said draw bar component liaison; Said draw bar assembly is located at the front end of said little frame, and said draw bar locked component is located at the rear end of little frame; Wherein:

Said draw bar assembly comprises a U type draw bar, and itself and said little frame are hinged, to switch between horizontal station of a draw bar and the vertical station of a draw bar around jointed shaft;

Said draw bar locked component comprises:

One with the cooresponding U type of said U type draw bar groove;

One horizontally disposed locking rotating shaft;

One first pedal, it is captiveed joint with said locking rotating shaft, on cw or anticlockwise direction, rotates around himself axle center with the driven locking rotating shaft;

One stop pin, it is captiveed joint with said locking rotating shaft, and said stop pin is set to its lower end along with the bottom surface that be rotated away from or contact said U type groove of locking rotating shaft on cw or anticlockwise direction.

9. engine material rest as claimed in claim 3; It is characterized in that said first pin assembly also comprises one second pedal, said second pedal is connected with said first locating dowel pin through coupling assembling; So that said second pedal is when depressing; Said first locating dowel pin is in opens station, and when second pedal lifted, first locating dowel pin was in the locking station.