CN101699009A - Truck and auxiliary closing device for bottom door thereof - Google Patents
Truck and auxiliary closing device for bottom door thereof Download PDFInfo
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- CN101699009A CN101699009A CN200910180997A CN200910180997A CN101699009A CN 101699009 A CN101699009 A CN 101699009A CN 200910180997 A CN200910180997 A CN 200910180997A CN 200910180997 A CN200910180997 A CN 200910180997A CN 101699009 A CN101699009 A CN 101699009A
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- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000005484 gravity Effects 0.000 abstract description 18
- 238000000034 method Methods 0.000 abstract description 14
- 230000000694 effects Effects 0.000 description 8
- 238000003466 welding Methods 0.000 description 6
- 238000012545 processing Methods 0.000 description 4
- 230000002153 concerted effect Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P1/00—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading
- B60P1/56—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading the load-transporting element having bottom discharging openings
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
- E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
- E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
- E05F1/1033—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a torsion bar
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
- E05Y2900/516—Application of doors, windows, wings or fittings thereof for vehicles for trucks or trailers
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
- E05Y2900/53—Type of wing
- E05Y2900/544—Tailboards, tailgates or sideboards opening downwards
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Closing And Opening Devices For Wings, And Checks For Wings (AREA)
Abstract
The invention discloses an auxiliary closing device for a bottom door. The device comprises an elastic part which is installed between an underframe (1) of a truck and the bottom door (2), wherein the elastic part has a restoring force for the bottom door (2) along the closing direction of the bottom door (2). When the bottom door (2) is closed by pushing of an operator, as the elastic part has the restoring force on the bottom door (2) along the closing direction of the bottom door, the resultant force of the restoring force and the applied force on the bottom door (2) by the operator is equal to the gravity of the bottom door (2), the restoring force of the elastic part counteracts a part of gravity of the bottom door (2); therefore, when the bottom door (2) with the same weight is closed, the applied force by the operator can be obviously reduced, the labor intensity of the operator during the closing process is reduced, and the potential safety hazard is also reduced.
Description
Technical field
The present invention relates to the vehicle field, particularly a kind of auxiliary closing device for bottom door that is used for lorry.The invention still further relates to a kind of lorry that comprises above-mentioned auxiliary closing device for bottom door.
Background technology
Along with the fast development of China's economic construction, market increases day by day for the demand of the especially various lorries of vehicle.
In order to improve the rate of discharging of lorry, and reduce staff's labour intensity, a lot of lorries all offer bottom door at its diapire.In the time the goods of railway carriage need being drawn off, bottom door to be opened, goods draws off under the effect of himself gravity, enters unloading in the railway carriage and need not the staff, has improved the operating efficiency in the unloading process significantly, and has reduced working strength of workers.
Bottom door generally can be installed on the car body bottom of lorry by folding, and can be that turning cylinder rotates on vertical plane around the bearing pin of folding, welding resistance has the bottom door shelves on the car body bottom steel structure of lorry, and the aperture when opening in order to the restriction bottom door is equipped with Fomento in the appropriate location of bottom door.When bottom door is closed, utilize the sealed of keeper in the locking device, with the fixing position of bottom door when closing; When bottom door is opened, keeper in the bottom door locking device is thrown off, can realize the open operation of bottom door under the acting in conjunction of self gravitation and goods gravity, bottom door rotates suitable angle around the bearing pin of folding, when the angle of bottom door rotation reaches predefined angle, the bottom door that bottom door is set on the floor underframe for vehicle blocks, with being rotated further of restriction bottom door.
Owing to the restriction of reasons such as ancillary facility in the lorry, bottom door needs to rely on manpower that it is resetted and closes after unloading is finished.The bottom door of lorry mostly is the steel plate group welding piece, and in order to guarantee that bottom door has enough intensity, rigidity and stability, and because the structural constraint of lorry self makes that the weight of bottom door is bigger, general all about 200Kg, like this, in bottom door closed closed procedure, labor intensity of operating personnel was bigger, in case and operation failure, the bottom door that descends under action of gravity can bring personal injury to operating personnel, has comparatively serious potential safety hazard.
Therefore, how when the bottom door of lorry is closed, reduce labor intensity of operating personnel, and improve processing safety, just become the problem that those skilled in the art need solve.
Summary of the invention
The purpose of this invention is to provide a kind of auxiliary closing device for bottom door, it can reduce labor intensity of operating personnel in the process that bottom door is closed, and has improved processing safety; Another object of the present invention provides a kind of lorry that comprises above-mentioned auxiliary closing device for bottom door.
For solving the problems of the technologies described above, the invention provides a kind of auxiliary closing device for bottom door, comprise the underframe that is installed on lorry and the elastomeric element between the bottom door, so that provide along the restoring force of described bottom door closing direction for described bottom door.
Preferably, described elastomeric element comprises torsion bar and connecting rod, and an end of described torsion bar and first end of described connecting rod are hinged, and its other end is fixed in the appropriate location of described bottom door, and second end of described connecting rod is articulated in described underframe.
Preferably, described torsion bar further comprises the first bar section, second bar section and the twist section; Described twist section is generally along the left and right directions setting of described lorry, and the one end is connected with the first bar section, the other end is connected with the second bar section that is suitable angle with described bottom door, the other end of the described first bar section is connected in described underframe, the other end of the described second bar section is fixedly connected on described bottom door, and the axis of the axis of the described first bar section and the described second bar section is suitable angle.
Preferably, described underframe comprises seat board, and described connecting rod is connected with described underframe by described seat board.
Preferably, also comprise be installed on described bottom door be hook-shaped boatswain chair substantially, the twist section of described torsion bar is supported in the described boatswain chair.
Preferably, the number of described boatswain chair is at least two, and respectively the two ends formation of described twist section is supported.
The present invention also provides a kind of lorry, comprises above-mentioned each described auxiliary closing device for bottom door.
Preferably, also comprise the fastening devices that is fixedly connected on the described underframe, so that the position of fixing described bottom door when closing.
Preferably, described fastening devices comprises the holder that is fixed in described underframe appropriate location, and is articulated in the latch hook on the described holder.
Auxiliary closing device for bottom door provided by the present invention comprises the underframe that is installed on lorry and the elastomeric element between the bottom door, and described elastomeric element has along the restoring force of described bottom door closing direction described bottom door.When bottom door is opened, bottom door produces the pressure opposite with the bottom door closing direction to elastomeric element, then elastomeric element is to the direction of the reaction force of the bottom door closing direction along bottom door, like this, when closing under the promotion of bottom door the staff, because elastomeric element has restoring force along its closing direction to bottom door, the gravity equal and opposite in direction with bottom door of making a concerted effort of restoring force and staff active force that bottom door is applied then, elastomeric element has been offset a part of gravity of bottom door to the restoring force of bottom door, thereby, when closing the bottom door of same weight, the active force that the staff applies can access significantly lower, reduce bottom door and closed the labour intensity of staff in the closed procedure, and reduced potential safety hazard.
A kind of preferred embodiment in, above-mentioned elastomeric element can comprise torsion bar and connecting rod, an end of torsion bar and first end of described connecting rod are hinged, and its other end is fixed in the appropriate location of described bottom door, second end of described connecting rod is articulated in described underframe.When bottom door was opened, torsion bar rotated with respect to the point of rotation of bottom door, rotates with respect to the tie point between torsion bar and the underframe simultaneously, and then torsion bar forms the restoring force along the bottom door closing direction.Usually, under equality strength, the restoring force of torsion bar is bigger, and active force is comparatively stable, and application life is longer.
In another preferred embodiment, above-mentioned torsion bar may further include the twist section that is provided with generally along the bottom door direction, and an end of this twist section is connected with the first bar section, and its other end is connected with the second bar section that is suitable angle with described bottom door; The other end of the first bar section is connected in connecting rod, and the other end of the second bar section is fixedly connected on bottom door, and the axis of the axis of the first bar section and the second bar section is suitable angle.When bottom door is opened, the above-mentioned second bar section rotates with the axis of rotation of bottom door around bottom door, the described second bar section is because of the restriction of connecting rod, can not freely-movable arrive and the identical angle of the first bar section, make twist section different with the second bar section place rotational angle, and then make twist section form reversing of certain angle near the first bar section.When bottom door is closed, discharge the restoring force of twist section, to the power of bottom door formation, to realize the effect of power-assisted along its closing direction.The torsion bar of this kind form is simple in structure, and is easy to process, and the power-assisted effect is better.
Description of drawings
Fig. 1 is the structural representation under the bottom door open mode in a kind of specific embodiment of auxiliary closing device for bottom door provided by the present invention;
Fig. 2 is the structural representation under the bottom door closed condition in a kind of specific embodiment of auxiliary closing device for bottom door provided by the present invention;
Fig. 3 is the structural representation of a kind of specific embodiment of elastomeric element provided by the present invention;
Fig. 4 is an elastomeric element shown in Figure 3 structural representation in left apparent direction;
Fig. 5 is the structural representation of a kind of specific embodiment of fastening devices provided by the present invention.
The specific embodiment
Core of the present invention provides a kind of auxiliary closing device for bottom door, and it has reduced labor intensity of operating personnel in the process that bottom door is closed, and has improved processing safety; Another object of the present invention provides a kind of lorry that comprises above-mentioned auxiliary closing device for bottom door.
In order to make those skilled in the art person understand technical scheme of the present invention better, the present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 1 and Fig. 2, Fig. 1 is the structural representation under the bottom door open mode in a kind of specific embodiment of auxiliary closing device for bottom door provided by the present invention; Fig. 2 is the structural representation under the bottom door closed condition in a kind of specific embodiment of auxiliary closing device for bottom door provided by the present invention.
Auxiliary closing device for bottom door provided by the present invention, comprise the underframe 1 that is installed on lorry and the elastomeric element between the bottom door 2, this elastomeric element has restoring force to described bottom door 2, and the direction of restoring force is along bottom door 2 closing directions, to close in the closed procedure, promote the direction rotation that bottom door is closed to bottom door at bottom door.
Apparently, above-mentioned bottom door 2 is generally two, one side of two bottom doors 2 is hinged by the underframe 1 of jointed shaft and lorry respectively, and rotate around separately jointed shaft, to realize the opening and closing of bottom door 2, correspondingly, can have auxiliary closing device for bottom door provided by the present invention respectively between each bottom door 2 and the underframe 1.
Above-mentioned jointed shaft can be the bearing pin of the folding of installation between bottom door 2 and the underframe 1.
Apparently, the quantity of above-mentioned bottom door 2 also is not limited to two, under the prerequisite that satisfies the real work instructions for use, also can be 1 or a plurality of.
The direction that is provided with of above-mentioned bottom door 2 can vertically be provided with along the direction that lorry travels, and bottom door 2 also can be other set-up mode, for example the direction horizontally set that travels along vertical above-mentioned lorry certainly.
When bottom door is opened, bottom door produces the pressure opposite with the bottom door closing direction to elastomeric element, then elastomeric element is to the direction of the reaction force of the bottom door closing direction along bottom door, like this, when closing under the promotion of bottom door the staff, because elastomeric element has restoring force along its closing direction to bottom door, the gravity equal and opposite in direction with bottom door of making a concerted effort of restoring force and staff active force that bottom door is applied then, elastomeric element has been offset a part of gravity of bottom door to the restoring force of bottom door, thereby, when closing the bottom door of same weight, the active force that the staff applies can access significantly lower, reduce bottom door and closed the labour intensity of staff in the closed procedure, and reduced potential safety hazard.
In a kind of specific embodiment, above-mentioned elastomeric element can comprise torsion bar 3 and connecting rod 4, and an end of torsion bar 3 and first end of connecting rod 4 are hinged, and its other end is fixed in the appropriate location of bottom door 2, and second end of connecting rod 4 is articulated in underframe 1.Bottom door 2 is in the process of opening, torsion bar 3 is under the effect of bottom door 2 gravity, produce the twisting resistance that increases gradually, behind the bottom door complete opening, it is maximum that the torsional deflection degree of torsion bar 3 reaches, and then its twisting resistance also reaches maximum value, apparently, the direction of this twisting resistance should be opposite with the gravity direction of bottom door 2, also, and the direction that the direction of this twisting resistance is closed along bottom door 2; When bottom door is closed, the twisting resistance opposite with bottom door 2 gravity directions can balance part gravity, then the twisting resistance of staff's motive force that makes progress that bottom door 2 is applied and torsion bar 3 make a concerted effort get final product greater than the gravity of bottom door 2, also be that the twisting resistance of torsion bar 3 has been shared the staff and overcome bottom door gravity institute work, thereby played the effect of power-assisted.Torsion bar 3 can bear bigger torsional deflection, and supporting capacity is stronger simultaneously, and application life is longer.
Above-mentioned elastomeric element can also be specially the air-leg that is arranged between bottom door 2 and the underframe 1, and an end of this air-leg is fixed on the bottom door 2, and the other end is fixed in the appropriate location of underframe 1, and when bottom door was closed, air-leg can play the effect of power-assisted.
Apparently, above-mentioned elastomeric element also is not limited to torsion bar 3, and it mainly acts on and is, when bottom door is opened, by the form storage power of distortion, when bottom door is closed, the form of energy stored with power discharged, also promptly bottom door is produced the active force of closing direction, thereby reach the purpose of power-assisted.In actual production, other component that can play the power-assisted effect also can be used as elastomeric element, for example have the spring of enough restoring forces, and the concrete form of elastomeric element should not be subjected to the restriction of this manual.
Can also be further improved auxiliary closing device for bottom door provided by the present invention.
Please refer to Fig. 3 and Fig. 4, and please in the lump with reference to figure 1 and Fig. 2.Fig. 3 is the structural representation of a kind of specific embodiment of torsion bar provided by the present invention; Fig. 4 is a torsion bar shown in Figure 3 structural representation in left apparent direction.
In the another kind of specific embodiment, above-mentioned torsion bar 3 may further include the twist section 33 that is provided with generally along the left and right directions of described lorry, one end of this twist section 33 is connected with the first bar section 31, and its other end is connected with the second bar section 32 that is suitable angle with bottom door 2; The other end that the other end of the above-mentioned first bar section 31 is connected in connecting rod 4, the second bar sections 32 is connected in bottom door 2, and the axis of the axis of the above-mentioned first bar section 31 and the second bar section 32 is suitable angle.
The left and right directions of above-mentioned lorry is specially, and is determined left side, the place ahead and right side with the travel direction of lorry.
The above-mentioned first bar section 31 can be integral structure with twist section 33, can be formed by bending by same rod, also can be split-type structural, for example is welded at an angle by two bars.Correspondingly, also can be the structure of integral type between the above-mentioned twist section 33 and the second bar section 32, also promptly form by bending, can certainly be split-type structural, also can connect by fixedly connected modes such as welding by same bar.It is pointed out that the said fixing ways of connecting is wanted can realize firmly and connection reliably, if connecting portion has enough torsion proof abilities.
Can connect smoothly by arc section between above-mentioned first bar section 31 and the twist section 33, optimizing the force-bearing situation of both connecting portions, thus the anti-torsion ability and the application life of improving connecting portion.Correspondingly, based on identical reason, between the above-mentioned twist section 33 and the second bar section 32, also can connect smoothly by arc section.The concrete size of above-mentioned arc section should determine that the numerical value of its concrete size should not be subjected to the restriction of this manual according to the size of the twisting resistance that is born in the work.
When bottom door 2 is opened, an above-mentioned end that is fixed in the second bar section 32 on the bottom door 2 with the one end, (the A point is shown among Fig. 1 and Fig. 2 along with bottom door 2 rotates around the A point, be the tie point between bottom door 2 and the underframe 1), and because the first bar section 31 is fixedly installed on the underframe 1, then the first bar section 31 is with respect to underframe 1 transfixion; Simultaneously owing to be suitable angle between the bottom door 2 and the second bar section 32, and the axis of the axis of the first bar section 31 and the second bar section 32 also is suitable angle, then in the opening procedure of bottom door 2, the angle of the axis of the first bar section 31 and the second bar section 32 reduces, twist section 33 has reversing of certain angle, and forms the twisting resistance with a certain size; Apply and the twisting resistance that twist section 33 is had is a gravity when being opened by bottom door 2, therefore, the direction of twisting resistance should be opposite with bottom door 2 gravity directions.Like this, when bottom door was closed, the twisting resistance opposite with bottom door 2 gravity directions that twist section has can promote bottom door 2 and close, thereby played the effect of power-assisted, reduced staff's labour intensity; And this kind is provided with torsion bar 3 reliable operations of form, and the anti-torsion ability chamber is strong, has higher application life.
Apparently, the concrete form of above-mentioned torsion bar 3 is not limited to the described structure of this specific embodiment, as long as can realize by rational layout that bottom door 2 bears when opening reverses, the function that helps promotion bottom door 2 to close by twisting resistance when bottom door 2 is closed gets final product, and its concrete form should not be subjected to the restriction of this specific embodiment.
On the basis of the above-mentioned specific embodiment, auxiliary closing device for bottom door provided by the present invention can also comprise connecting rod 4, one end of this connecting rod 4 is articulated in the appropriate location of underframe 1, and the other end and the above-mentioned first bar section 31 are hinged, and also promptly the first bar section 31 is connected with underframe 1 by connecting rod 4.When bottom door is opened, the first stressed bar section 31 is rotated down around the pin joint B of connecting rod 4 with underframe 1 with connecting rod 4, because the first bar section 31 has certain angle with the surfaces of revolution of connecting rod 4 and third connecting rod 33 with the surfaces of revolution of bottom door 1, then in the process of the first bar section 31 and 32 rotations of the second bar section, the direction of rotation of the end that the twist section 33 and the first bar section 31 are close, be different from itself and the second bar section 32 direction of rotation near ends, then twist section 33 has reversing to a certain degree, thereby produces twisting resistance.When bottom door 1 was closed, this twisting resistance provided along the motive force of bottom door 1 closing direction for bottom door 1.Rotate around the B point by the end of connecting rod 4, thereby in bottom door 2 opening procedures, improved the degree of reversing of torsion bar section 2, improved the twisting resistance of torsion bar section 2, and then further reduced staff's labour intensity with the close connecting rod 4 of assurance torsion bar section 2.
Can also be connected by seat board 5 between above-mentioned connecting rod 4 and the underframe 1.Seat board 5 is installed on the appropriate location of underframe 1, and an end of connecting rod 4 is articulated on the above-mentioned seat board 5 by jointed shaft, thereby makes connecting rod 4 be installed on comparatively easily on the underframe 1, has simplified installation process; And, when wearing and tearing take place connecting rod 4, be convenient to it is pulled down from seat board 5, thereby improved the maintenance cost of installing.
Above-mentioned seat board 5 can be fixedly connected on the underframe 1 by the mode of welding, certainly, also can be other fixedly connected modes.
Can be connected by bearing pin between above-mentioned connecting rod 4 and the seat board 5, to improve switching performance between the two.
The appropriate location of above-mentioned bottom door 2 can also be provided with the boatswain chair 6 that is hook-shaped substantially, and the twist section 33 of above-mentioned torsion bar 3 is supported in this boatswain chair 6.Like this, twist section 33 is fixed in the boatswain chair 6, rotates around above-mentioned pin joint A, thereby further improved the functional reliability of device to guarantee the hinged end of the connecting rod 4 and the first bar section 31.
Above-mentioned boatswain chair 6 can be two, is arranged at the two ends of twist section 33 respectively, supports to form comparatively reliably.
Above-mentioned boatswain chair 6 can be installed on the above-mentioned bottom door 1 by the mode of welding, can certainly be other concrete fixedly connected modes.
It is to be noted, in auxiliary closing device for bottom door provided by the present invention, the position of torsion bar 3 and bottom door 2 contact points is apart from the angle of the concrete geomery of the distance of bottom door 2 rotating shafts, torsion bar 3, torsion bar 3 and bottom door 2 and torsion bar 3 diameters are isoparametric should determine that the numerical value of its concrete parameter and concrete installation dimension should not be subjected to the restriction of the specific embodiment of the invention according to the weight of bottom door 2, the doorway aperture of bottom door 2 and the factors such as the coefficient of rigidity of torsion bar 3 materials.Based on above reason, angle and appropriate location suitable in the literary composition are interpreted as, when above each parameter changes, and each angle and the position is set changes thereupon, and after each parameter is determined, each angle and the position is set for determining numerical value.
Except above-mentioned auxiliary closing device for bottom door, the present invention also provides a kind of lorry that comprises above-mentioned auxiliary closing device for bottom door.
Above-mentioned lorry can comprise fastening devices, so that the fixing position of above-mentioned bottom door 2 when closing, thus the reliability when improving bottom door 2 and closing.
The said fixing device can comprise the holder 71 that is welded on the underframe 1, and is articulated in the latch hook 72 on the holder 71, and bottom door 2 is fixed in the latch hook 72 by its Fomento 21.By latch hook 72 can be comparatively easily the fixing position of bottom door 2, and simple in structure, be convenient to processing and manufacturing.
Apparently.Type of attachment between said fixing seat 71 and the underframe 1 also is not limited to welding, also can be other fixedly connected modes.
The concrete structure of other each several parts of this lorry please refer to prior art, and this paper repeats no more.
More than a kind of lorry provided by the present invention and auxiliary closing device for bottom door thereof are described in detail.Used specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (9)
1. an auxiliary closing device for bottom door is characterized in that, comprises the underframe (1) that is installed on lorry and the elastomeric element between the bottom door (2), so that provide restoring force along its closing direction for described bottom door (2).
2. auxiliary closing device for bottom door according to claim 1 is characterized in that, described elastomeric element comprises torsion bar (3) and connecting rod (4); First end of one end of described torsion bar (3) and described connecting rod (4) is hinged, and its other end is installed on the appropriate location of described bottom door (2), and second end of described connecting rod (4) is articulated in described underframe (1).
3. auxiliary closing device for bottom door according to claim 2 is characterized in that, described torsion bar (3) further comprises the first bar section (31), the second bar section (32) and twist section (33); Described twist section (33) is generally along the left and right directions setting of described lorry, and the one end is connected with the first bar section (31), the other end is connected with the second bar section (32) that is suitable angle with described bottom door (2), the other end of the described first bar section (31) is connected in first end of described connecting rod (4), the other end of the described second bar section (32) is fixedly connected on described bottom door (2), and the axis of the axis of the described first bar section (31) and the described second bar section (32) is suitable angle.
4. according to claim 2 or 3 each described auxiliary closing device for bottom door, it is characterized in that described underframe (1) comprises seat board (5), described connecting rod (4) is connected with described underframe (1) by described seat board (5).
5. according to claim 2 or 3 each described auxiliary closing device for bottom door, it is characterized in that also comprise being installed on hook-shaped boatswain chair (6) of being substantially of described bottom door (2), the twist section (33) of described torsion bar (3) is supported in the described boatswain chair (6).
6. auxiliary closing device for bottom door according to claim 5 is characterized in that, described boatswain chair (6) is at least two, and respectively the two ends formation of described twist section (33) is supported.
7. a lorry is characterized in that, comprises each described auxiliary closing device for bottom door of claim 1 to 6.
8. lorry according to claim 7 is characterized in that, also comprises the fastening devices that is fixedly connected on the described underframe (1), so that the fixing position of described bottom door (2) when closing.
9. lorry according to claim 8 is characterized in that, described fastening devices comprises the holder (71) that is fixed in described underframe (1) appropriate location, and is articulated in the latch hook (72) on the described holder (71).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910180997A CN101699009A (en) | 2009-10-23 | 2009-10-23 | Truck and auxiliary closing device for bottom door thereof |
| PCT/CN2010/072920 WO2011047547A1 (en) | 2009-10-23 | 2010-05-19 | Auxiliary closing device for bottom door of truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910180997A CN101699009A (en) | 2009-10-23 | 2009-10-23 | Truck and auxiliary closing device for bottom door thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101699009A true CN101699009A (en) | 2010-04-28 |
Family
ID=42147474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910180997A Pending CN101699009A (en) | 2009-10-23 | 2009-10-23 | Truck and auxiliary closing device for bottom door thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101699009A (en) |
| WO (1) | WO2011047547A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011047547A1 (en) * | 2009-10-23 | 2011-04-28 | 齐齐哈尔轨道交通装备有限责任公司 | Auxiliary closing device for bottom door of truck |
| CN103661076A (en) * | 2012-08-30 | 2014-03-26 | 中集车辆（集团）有限公司 | Vehicle roof structure and vehicle |
| CN104085404A (en) * | 2014-07-24 | 2014-10-08 | 齐齐哈尔轨道交通装备有限责任公司 | Railway open wagon chassis and bottom-opening door thereof |
| CN105082953A (en) * | 2014-05-23 | 2015-11-25 | 丰和纤维工业株式会社 | Vehicle ceiling |
| CN109681067A (en) * | 2019-02-14 | 2019-04-26 | 苏州市富尔达科技股份有限公司 | A kind of automatic closure window |
| CN111114654A (en) * | 2018-10-31 | 2020-05-08 | 通用汽车环球科技运作有限责任公司 | Variable output tailgate torque bar with adjustable length and cross-sectional area |
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|---|---|---|---|---|
| FI96404C (en) * | 1993-01-29 | 1996-06-25 | Cargotec U K Limited | Pallet handling system and connecting device used in the system |
| CN2774835Y (en) * | 2005-02-25 | 2006-04-26 | 王韵棠 | Double open back door for motor vehicle |
| JP4178418B2 (en) * | 2005-10-13 | 2008-11-12 | 三井金属鉱業株式会社 | Door opener |
| CN200992868Y (en) * | 2006-12-21 | 2007-12-19 | 杨秉然 | Truck door lock structure |
| CN101699009A (en) * | 2009-10-23 | 2010-04-28 | 齐齐哈尔轨道交通装备有限责任公司 | Truck and auxiliary closing device for bottom door thereof |
-
2009
- 2009-10-23 CN CN200910180997A patent/CN101699009A/en active Pending
-
2010
- 2010-05-19 WO PCT/CN2010/072920 patent/WO2011047547A1/en active Application Filing
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011047547A1 (en) * | 2009-10-23 | 2011-04-28 | 齐齐哈尔轨道交通装备有限责任公司 | Auxiliary closing device for bottom door of truck |
| CN103661076A (en) * | 2012-08-30 | 2014-03-26 | 中集车辆（集团）有限公司 | Vehicle roof structure and vehicle |
| CN105082953A (en) * | 2014-05-23 | 2015-11-25 | 丰和纤维工业株式会社 | Vehicle ceiling |
| CN104085404A (en) * | 2014-07-24 | 2014-10-08 | 齐齐哈尔轨道交通装备有限责任公司 | Railway open wagon chassis and bottom-opening door thereof |
| CN111114654A (en) * | 2018-10-31 | 2020-05-08 | 通用汽车环球科技运作有限责任公司 | Variable output tailgate torque bar with adjustable length and cross-sectional area |
| CN109681067A (en) * | 2019-02-14 | 2019-04-26 | 苏州市富尔达科技股份有限公司 | A kind of automatic closure window |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011047547A1 (en) | 2011-04-28 |
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Inventor after: Zhao Jian Inventor after: Liu Haipeng Inventor after: Jia Zhixue Inventor before: Zhao Jian Inventor before: Liu Haipeng Inventor before: Jia Zhixue |
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Application publication date: 20100428 |