CN113771925A - Locking structure and quick foldable double-deck shallow - Google Patents
Locking structure and quick foldable double-deck shallow Download PDFInfo
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- CN113771925A CN113771925A CN202111157428.3A CN202111157428A CN113771925A CN 113771925 A CN113771925 A CN 113771925A CN 202111157428 A CN202111157428 A CN 202111157428A CN 113771925 A CN113771925 A CN 113771925A
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- leg
- connecting end
- limiting part
- deck
- double
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
- B62B3/02—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving parts being adjustable, collapsible, attachable, detachable or convertible
- B62B3/022—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving parts being adjustable, collapsible, attachable, detachable or convertible folding down the body to the wheel carriage or by retracting projecting parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B5/00—Accessories or details specially adapted for hand carts
Abstract
The invention discloses a locking structure and a quick folding type double-layer cart, and aims to solve the problems that the operation of the locking structure in the existing cart is complicated, the efficiency of the cart during folding or unfolding is not high, and the locking function of the locking structure is not stable enough. Wherein, locking structure includes: the base is used for being connected with a loading panel in the double-layer cart; the stop plate is provided with a limiting part and a connecting part which are opposite in position, the limiting part is used for limiting the sliding of the shearing fork arm in the double-layer trolley, and the connecting part is rotatably connected with the base; the elastic piece is connected between the limiting part and the base and used for providing an elastic trend for enabling the limiting part to be far away from the base. The locking structure can improve the stability of the cart when the cart is unfolded and is easy and convenient to operate when the cart is unfolded and folded when the locking structure is applied to a quick folding type double-layer cart.
Description
Technical Field
The invention relates to the technical field of transportation equipment, in particular to a locking structure and a quick folding type double-layer cart.
Background
In the field of transportation equipment, the trolley is widely applied to production and life due to the advantages of low manufacturing cost, convenience in maintenance, simplicity in operation, light self weight and the like, and can realize the function of carrying objects in short distance and small space, particularly in the environment where motor vehicles are inconvenient to use.
However, in the current process of storing and transporting the trolley, the trolley has the problems of large occupied space, difficult folding and the like, and particularly under the condition of limited storage space and transportation space, the trolley is greatly limited in use, manual carrying is mostly adopted, and the transportation cost is higher.
To solve the above problem, chinese utility model patent publication No. CN205802860U discloses a foldable lifting cart, which adopts the arrangement of a scissor mechanism to form a scissor lift table, so as to make the cart obtain a foldable function, however, in this patent, there are also following disadvantages:
1. the height of the cart is adjusted by a screw rod, so that the folding or unfolding efficiency of the cart is not high;
2. according to the foldable forklift, the screw is used as a locking structure of the scissor mechanism, when the forklift carries objects, the scissor mechanism is easy to damage the thread part of the screw, so that the folding function of the forklift is invalid;
3. this patent is adjusted the height of shallow through the screw rod, when the shallow carried the thing overweight, cuts fork mechanism and probably forces the screw rod rotatory by oneself to make the shallow fold by oneself, influence article transportation.
Disclosure of Invention
The invention provides a locking structure and a quick folding type double-layer cart, and aims to solve the problems that the operation of the locking structure in the existing cart is complicated, the efficiency of the cart during folding or unfolding is not high, and the locking function of the locking structure is not stable enough.
The invention is realized by the following technical scheme:
in one aspect, the present invention provides a locking structure, including: the base is used for being connected with a loading panel in the double-layer cart; the stop plate is provided with a limiting part and a connecting part which are opposite in position, the limiting part is used for limiting the sliding of the shearing fork arm in the double-layer trolley, and the connecting part is rotatably connected with the base; the elastic piece is connected between the limiting part and the base and used for providing an elastic trend for enabling the limiting part to be far away from the base.
According to the locking structure provided by the invention, whether the sliding of the scissor arm is limited or not can be formed by rotating the limiting plate, the operation is simple, and the efficiency of the cart is higher when the cart is folded and unfolded.
According to the invention, the limiting part is arranged, mechanical limiting is directly formed on the sliding motion of the scissor arm, and compared with the existing thread locking structure, the push car cannot roll back after being unfolded, and locking is stable.
Optionally, an unlocking button is arranged on the blocking plate.
The setting of unblock button can be convenient for the staff and operate the locking structure, improves the folding efficiency of shallow.
Optionally, the limiting part is provided with a groove for avoiding a guide rail matched with the scissor arm in the double-layer cart.
The arrangement of the groove enables the locking structure to be more compact in structural matching in the double-layer trolley.
In another aspect, the present invention provides a quick folding double-deck cart, comprising: the upper panel is used for carrying objects, the upper panel is respectively provided with an unlocking button used for avoiding the locking structure and a through hole used for avoiding a limiting part in the locking structure, and the upper panel is also provided with a guide rail; a lower deck for carrying cargo; the shearing fork arm is provided with a first connecting end and a second connecting end at one end, the first connecting end is hinged with the upper panel, the second connecting end is provided with a sliding block, the sliding block is matched with the guide rail, a third connecting end and a fourth connecting end are arranged at the other end of the shearing fork arm, the third connecting end is hinged with the lower panel, the fourth connecting end is connected with the lower panel in a sliding manner, and the sliding direction of the fourth connecting end is consistent with that of the second connecting end; the locking structure is connected with the upper panel through the base, and the unlocking button and the limiting part are respectively positioned in the through hole of the upper panel; under the operating condition, the second link has unblock state and locking state, and when the second link was in the unblock state, the slider was located one side of spacing portion, spacing portion is right the slider forms spacingly, and when the second link was in the locking state, the slider was located the opposite side of spacing portion, spacing portion is right the slider forms spacingly.
The quick folding type double-layer cart provided by the invention adopts the locking structure, the space occupation is small, and the space occupation of the locking structure is avoided between the upper layer panel and the lower layer panel, so that the function of loading objects on the double-layer panel is provided.
Optionally, the limiting portion has a guide surface, and when the sliding block slides from one side of the limiting portion to the other side of the limiting portion to change the second connecting end from the unlocked state to the locked state, the sliding block is in sliding contact with the guide surface.
The guide surface and the sliding block are in sliding contact, the limiting portion can oppress the elastic piece under the pressure action of the sliding block, and therefore the locking structure is not required to be operated by the cart in the unfolding process, the cart is convenient to unfold, and unfolding efficiency of the cart is improved.
Optionally, folding legs are included, which are provided to the lower panel.
Folding landing leg is used for connecting shallow and truckle, improves the height of the lower floor's face of shallow on the one hand, makes the shallow adapt to more environment occasions, and on the other hand also provides folding function for the truckle substantially, can not produce unnecessary when placing and slide, is convenient for accomodate.
Optionally, as a specific embodiment of the folding leg, the folding leg comprises a leg hinge seat, a leg rod and a fixing rod; the landing leg pole with landing leg hinge seat rotatable coupling, the landing leg pole has the first state during rotation, it has the kidney slot to open on the landing leg pole, it has first opening to open on the landing leg hinge seat, and dead lever one end is located the kidney slot, the dead lever pass through the elastic component with lower panel connection, when the landing leg pole was in the first state, the dead lever was located first opening under the effect of elastic component.
When the dead lever is located kidney slot and first opening simultaneously through the elastic action of elastic component, can realize the mutual fixation between landing leg hinge seat and the landing leg pole, and when needs receive and release the landing leg pole, the mounting leaves first opening and can receive and release folding landing leg when only needing to overcome the elasticity of elastic component, easy operation improves the folding efficiency of shallow.
Optionally, a second notch is formed in the supporting leg hinge seat, the supporting leg rod has a second state when rotating, and when the supporting leg rod is in the second state, the fixing rod is located in the second notch under the action of the elastic piece.
The second opening is set to provide a limiting function after the folding supporting legs are folded and unfolded, so that the stability of the folded supporting legs after being folded and unfolded is ensured, and the folding supporting legs are prevented from being unfolded automatically.
Optionally, the leg bar is provided with a rubber support pad for acting as a placement support for the cart when the leg bar is in the second state.
The setting of rubber supporting pad prevents that folding landing leg from suffering wearing and tearing, and rubber supporting pad also can hinder the shallow to produce when placing and slide as support piece simultaneously.
Optionally, the leg rod is provided with a ball, the lower panel is provided with a ball locking seat, and when the leg rod is in the second state, the ball is located in the ball locking seat.
The arrangement of the collision bead on the collision bead locking seat further improves the stability of the folded folding supporting leg, and the folding supporting leg is prevented from being opened by itself.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. according to the locking structure provided by the invention, whether the sliding of the scissor arm is limited or not can be formed by rotating the limiting plate, the operation is simple, and the efficiency of the trolley is higher when the trolley is folded and unfolded; and through the setting of spacing portion, it is spacing to the direct mechanical formation of the sliding motion of scissors yoke, compare in current screw thread locking structure, can not form the phenomenon of rolling back after the shallow expandes, and the locking is stable.
2. The quick folding type double-layer cart provided by the invention adopts the locking structure, the space occupation is small, and the space occupation of the locking structure is avoided between the upper layer panel and the lower layer panel, so that the function of loading objects on the double-layer panel is provided.
Drawings
In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort.
In the drawings:
fig. 1 is a schematic perspective view of an embodiment of a quick folding double-deck cart according to the present invention;
FIG. 2 is a schematic structural view of a folded state of the rapid folding double-deck cart provided by the present invention;
FIG. 3 is a schematic diagram of a first view angle of an upper panel according to the present invention;
FIG. 4 is a schematic structural diagram of a second viewing angle of an upper panel according to the present invention;
FIG. 5 is a schematic structural diagram of a locking structure provided by the present invention;
FIG. 6 is a schematic view of a scissors arm according to the present invention;
FIG. 7 is a schematic view of a first perspective of a lower deck panel according to the present invention;
FIG. 8 is a schematic structural diagram of a second viewing angle of a lower panel according to the present invention;
fig. 9 is a schematic structural view of a folding leg provided by the present invention.
Reference numbers and corresponding part names in the drawings:
1-upper panel, 2-scissor arm, 3-lower panel, 4-folding leg, 11-main transfer handle, 12-auxiliary transfer handle, 13-upper panel table, 14-guide rail, 15-unlocking button, 16-limiting part, 17-elastic part, 18-limiting plate rotating pin, 19-base, 21-hinge seat, 22-rotating pin, 23-support beam, 24-shaft sleeve, 25-shaft sleeve locking gasket, 32-lower panel table, 33-lower panel sliding groove, 34-leg fixing seat, 35-ball-hitting locking seat, 36-spring fixing seat, 37-extension spring, 41-leg hinge seat, 42-leg rotating pin, 43-first notch, 44-leg rod, 45-collision bead, 46-fixed rod, 47-kidney-shaped groove, 48-caster and 49-rubber supporting pad.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Examples
In one aspect, the present embodiment provides a locking structure, as shown in fig. 1 to 9, including: a base 19 for connecting with a cargo panel in a double-deck cart; the stop plate is provided with a limiting part 16 and a connecting part which are opposite in position, the limiting part 16 is used for limiting the sliding of the scissor arm 2 in the double-layer trolley, and the connecting part is rotatably connected with the base 19; and the elastic piece 17 is connected between the limiting part 16 and the base 19 and used for providing an elastic trend for enabling the limiting part 16 to be far away from the base 19.
Specifically, as shown in fig. 5, the base 19 is set to be the shape of a channel steel, two sides of the base 19 respectively extend outwards so as to be connected with other structures, a groove in the middle of the base 19 is used for installing a limiting plate, one end of the limiting plate is penetrated through by a rotating pin, the end of the limiting plate serves as a connecting part of the limiting plate, the rotating pin 18 of the limiting plate is further penetrated through two sides of the base 19, so that the limiting plate can rotate relative to the base 19, an elastic part 17 is connected between the other end of the limiting plate and the groove bottom of the groove of the base 19, the elastic part 17 is a compression spring, and the other end of the limiting plate extends towards the direction opposite to the groove to form a limiting part 16 or is connected with a blocking block to form a limiting part 16.
When the limit plate is pressed, one end of the limit part 16 applies pressure to the elastic piece 17, so that the limit part 16 can sink into the groove of the base 19, and the limit part 16 can avoid in the extending direction of the groove.
In order to facilitate the pressing of the limiting plate, an unlocking button 15 is arranged on the limiting plate, the unlocking button 15 can be of an integrally formed structure with the limiting plate, or can be additionally provided with a convex column to be connected with the limiting plate, and the unlocking button 15 is located between the rotating pin and the limiting part 16.
In order to make the locking structure more compactly matched in the double-layer trolley, the limiting part 16 is provided with a groove for avoiding the guide rail 14 matched with the scissor arm 2 in the double-layer trolley.
In another aspect, the present invention provides a quick folding double-deck cart, comprising: the upper panel 1 is used for carrying objects, the upper panel 1 is respectively provided with an unlocking button 15 used for avoiding a locking structure and a through hole used for avoiding a limiting part 16 in the locking structure, and the upper panel 1 is also provided with a guide rail 14; a lower deck 3 for carrying objects; the shearing fork arm 2 is provided with a first connecting end and a second connecting end at one end of the shearing fork arm 2, the first connecting end is hinged with the upper-layer panel 1, the second connecting end is provided with a sliding block, the sliding block is matched with the guide rail 14, a third connecting end and a fourth connecting end are arranged at the other end of the shearing fork arm 2, the third connecting end is hinged with the lower-layer panel 3, the fourth connecting end is connected with the lower-layer panel 3 in a sliding mode, and the sliding direction of the fourth connecting end is consistent with that of the second connecting end; the locking structure is connected with the upper panel 1 through a base 19, and the unlocking button 15 and the limiting part 16 are respectively positioned in the through hole of the upper panel 1; under the operating condition, the second link has unblock state and locking state, and when the second link was in the unblock state, the slider was located one side of spacing portion 16, spacing portion 16 was right the slider forms spacingly, and when the second link was in the locking state, the slider was located the opposite side of spacing portion 16, spacing portion 16 was right the slider forms spacingly.
Specifically, as shown in fig. 1 to 9, an upper panel 1 and a lower panel 3 are arranged in parallel, the upper panel 1 and the lower panel 3 are connected by a scissor arm 2, wherein the upper panel 1 has an upper panel table 13 for carrying a workpiece, the lower panel 3 has a lower panel table 32 for carrying a workpiece, the edges of the upper panel 1 and the lower panel 3 are respectively provided with a raised rib for preventing the workpiece to be transported from slipping off, and the side of the upper panel 1 is provided with a main transport handle 11 and an auxiliary transport handle 12 for being held by a worker to push a cart, the side of the upper panel 1 opposite to the upper panel table 13 is provided with a guide rail 14, as shown in fig. 4, the guide rail 14 is arranged on the upper panel 1 near the edge, the two guide rails 14 are respectively arranged at two ends of the upper panel 1 in the length direction, a first through hole for passing through the unlocking button 15 is arranged on the upper panel 1 at one axial side of the guide rail 14, the upper panel 1 is further provided with a second through hole for passing through the limiting part 16, the base 19 is connected to the upper panel table top 13, when the unlocking button 15 is positioned in the first through hole, the limiting part 16 is positioned in the second through hole, the limiting part 16 is provided with a groove, when the limiting part 16 is positioned in the second through hole, part of the shaft section of the guide rail 14 is sleeved in the groove of the limiting part 16, two corresponding connecting seats are further arranged at positions opposite to the two guide rails 14 in the width direction of the upper panel 1, and the connecting seats are used for being connected with the scissors arm 2, wherein the scissors arm 2 is hinged by two support beams 23 through a shaft sleeve 24; connecting holes are formed in two ends of the supporting beam 23, the connecting holes and the hinge seat 21 are rotatably connected through the rotating pins 22, the connecting holes in the two ends are centrosymmetric relative to the supporting beam 23, and the upper panel 1 is ensured to be parallel to the lower panel 3; the two hinge seats 21 above the scissor arm 2 are used as a first connecting end and a second connecting end, the two hinge seats 21 below are used as a third connecting end and a fourth connecting end, the first connecting end is connected with a slide block, the slide block is matched with the guide rail 14 to form sliding connection, the second connecting end is fixedly connected with the connecting seat on the upper panel 1, the third connecting end is connected with the lower panel 3 in a sliding way, the fourth connecting end is fixedly connected with the lower panel 3, when the two support beams 23 rotate relatively, the upper hinge base 21 and the lower hinge base 21 approach each other, at this time, the first connecting end slides relative to the upper panel 1, and the third connecting end slides relative to the lower panel 3, so as to fold the upper panel 1 and the lower panel 3, the third connecting end is also connected with a sliding block, the lower layer panel table surface 32 is provided with a corresponding guide rail, and the third connecting end is matched with the guide rail through the sliding block to realize the sliding connection with the lower layer panel 3.
It should be noted that the scissor arm 2 shown in the present embodiment is composed of two support beams 23, in other embodiments, the scissor arm 2 may also be composed of multiple sets of support beams 23, and the adjacent sets of support beams 23 are hinged, so that the upper deck panel 1 and the lower deck panel 3 have different distances therebetween, on one hand, the height of the upper deck panel 1 is adjusted, and on the other hand, the carrying space of the lower deck panel 3 can be increased.
In order to avoid partial operation of the locking structure, the limiting part 16 is provided with a guide surface, an included angle is formed between the guide surface and the limiting plate, the orientation of the guide surface and the orientation of the groove are positioned on the same side of the base 19, when other structures slide, the guide surface is pressed, the elastic piece 17 at the limiting part 16 is pressed at the same time, and therefore the limiting part 16 can move into the groove of the base 19 by itself and is free from operation on the limiting plate. For example, in this embodiment, when the cart is unfolded, the slider at the first connection end slides from one end of the guide rail 14 to the other end, the slider contacts with the guide surface during the sliding process, and the slider slides relative to the guide surface because the guide surface is an inclined surface relative to the limiting plate, and during the relative sliding process, the limiting portion 16 is pressed by the slider and is submerged into the groove of the base 19, so that the slider can slide to the other end of the guide rail 14, and at this time, the limiting portion 16 extends out of the groove of the base 19 under the action of the compression spring, so as to limit the slider, and prevent the slider from sliding in the opposite direction, even if the cart is self-maintained in the unfolded state.
In order to improve the height of the lower deck of the cart, the cart can adapt to more environmental occasions and is convenient to store, the lower deck 3 is also connected with folding legs 4, one end of each folding leg 4 is fixedly connected with the lower deck 3, and the other end of each folding leg is rotatably connected with a caster 48.
As a specific example of the folding leg 4, it includes a leg hinge base 41, a leg lever 44, and a fixing lever 46; the leg rod 44 is rotatably connected with the leg hinge seat 41, the leg rod 44 has a first state when rotating, a kidney-shaped groove 47 is formed in the leg rod 44, a first notch 43 is formed in the leg hinge seat 41, one end of the fixing rod 46 is located in the kidney-shaped groove 47, the fixing rod 46 is connected with the lower panel 3 through an elastic piece, and when the leg rod 44 is in the first state, the fixing rod 46 is located in the first notch 43 under the action of the elastic piece.
Specifically, as shown in fig. 9, the leg hinge base 41 is configured to be channel-shaped, one end of the leg hinge base 41 extends outward to form a convex edge for connecting with the lower panel 3, one end of the leg rod 44 is located in the groove of the leg hinge base 41, the leg rotating pin 42 simultaneously penetrates through the leg hinge base 41 and the leg rod 44, so as to realize the rotatable connection between the leg rod 44 and the leg hinge base 41, one side edge of one end of the leg hinge base 41 opposite to the convex edge is provided with a first gap 43, the leg rod 44 is provided with a waist-shaped groove 47, when the leg rod 44 is in a rotating state, the first gap 43 can be correspondingly overlapped with the waist-shaped groove 47, the fixing rod 46 is a circular shaft, two ends of the fixing rod 46 are respectively located in the waist-shaped grooves 47 of the two leg rods 44, the fixing rod 46 is further connected with the lower panel 3 through the tension spring 37, when the first gap 43 is correspondingly overlapped with the waist-shaped groove 47 during the rotation of the leg rod 44, the fixing rod 46 slides into the first notch 43 under the elastic pulling of the extension spring 37, and when the foldable leg 4 is folded, the fixing rod 46 is pushed to overcome the elastic pulling of the extension spring 37 so as to be positioned outside the first notch 43, and then the foldable leg 4 can be rotated.
In order to make folding landing leg 4 self-sustaining be fold condition, the second opening has still been seted up on landing leg hinge seat 41, landing leg pole 44 is under the pivoted state, the second opening can correspond the coincidence with kidney slot 47, guarantee folding landing leg 4 folding complete when for the convenience of placing, the orientation of second opening and the orientation mutually perpendicular of first opening 43, when the second opening corresponds the coincidence with kidney slot 47, dead lever 46 just is located the second opening under extension spring 37's elasticity pulling, when needing to expand folding landing leg 4, promote dead lever 46 in order to overcome extension spring 37's elasticity pulling so that dead lever 46 is located outside the second opening, alright folding landing leg 4's rotation, thereby expand folding landing leg 4.
Further preferably, as shown in fig. 9, a rubber support pad 49 is disposed on the leg rod 44, and when the leg rod 44 is in the second state, i.e. the second gap is correspondingly overlapped with the kidney-shaped slot 47, the rubber support pad 49 serves as a placing support for the cart.
As shown in fig. 9, the leg rod 44 is provided with a ball 45, the lower panel 3 is provided with a ball locking seat 35, and when the leg rod 44 is in the second state, that is, when the second gap is correspondingly overlapped with the kidney-shaped groove 47, the ball 45 is located in the ball locking seat 35.
It can be understood that the striking ball 45 and the striking ball locking seat 35 are in a snap-fit structure, for example, as shown in fig. 8 and 9, the striking ball 45 is a convex column, the cross section of the striking ball 45 is in a trapezoid shape, the striking ball locking seat 35 is configured as an elastic card, and the structure principle of the elastic card can refer to the structure of the electrical socket.
The working principle is as follows: when the unlocking button 15 is pressed, the sliding blocks on the scissor arms 2 can respectively move along the linear guide rails 14 arranged on the upper panel 1 and the lower panel 3, so that the upper panel 1 and the lower panel 3 can be folded; the fixing rod 46 of the folding leg 4 is pressed until the fixing rod is separated from the first notch 43, the folding leg 4 can be folded by 90 degrees, and the fixing rod 46 is located in the second notch, so that the folding of the folding leg 4 is realized. When the foldable support leg is unfolded, the foldable support leg 4 is rotated by 90 degrees, and the fixing rod 46 of the foldable support leg 4 automatically slides into the first notch 43, so that the unfolding of the support leg can be realized; the upper layer table top 1 is lifted upwards, the upper layer panel 1 is automatically separated from the lower layer panel 3 until the sliding block arranged on the scissor arm 2 slides from one side of the limiting part 16 to the other side, and the unfolding and locking of the upper layer table top can be automatically realized.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A locking structure, comprising:
a base (19) for connection with a cargo panel in a double-deck cart;
the stop plate is provided with a limiting part (16) and a connecting part which are opposite in position, the limiting part (16) is used for limiting the sliding of a scissor arm (2) in the double-layer trolley, and the connecting part is rotatably connected with the base (19);
and the elastic piece (17) is connected between the limiting part (16) and the base (19) and is used for providing an elastic trend for enabling the limiting part (16) to be far away from the base (19).
2. A locking arrangement as claimed in claim 1, characterised in that the blocking plate is provided with an unlocking button (15).
3. A locking arrangement according to claim 1, characterised in that the limiting portion (16) is provided with a recess for avoiding a guide rail (14) in the double-deck trolley cooperating with the scissor arm (2).
4. A quick foldable double-deck shallow which characterized in that includes:
the upper panel (1) is used for carrying objects, the upper panel (1) is respectively provided with an unlocking button (15) used for avoiding a locking structure and a through hole used for avoiding a limiting part (16) in the locking structure, and the upper panel (1) is also provided with a guide rail (14);
a lower deck (3) for carrying objects;
the shearing fork arm (2), one end of the shearing fork arm (2) is provided with a first connecting end and a second connecting end, the first connecting end is hinged with the upper layer panel (1), the second connecting end is provided with a sliding block, the sliding block is matched with the guide rail (14), the other end of the shearing fork arm (2) is provided with a third connecting end and a fourth connecting end, the third connecting end is hinged with the lower layer panel (3), the fourth connecting end is slidably connected with the lower layer panel (3), and the slidable direction of the fourth connecting end is consistent with the slidable direction of the second connecting end; and
the locking structure of claim 2, which is connected with the upper panel (1) through a base (19), and the unlocking button (15) and the limiting part (16) are respectively positioned in a through hole of the upper panel (1);
under the operating condition, the second connecting end has an unlocking state and a locking state, when the second connecting end is in the unlocking state, the sliding block is positioned on one side of the limiting part (16), the limiting part (16) limits the sliding block, when the second connecting end is in the locking state, the sliding block is positioned on the other side of the limiting part (16), and the limiting part (16) limits the sliding block.
5. A foldable rapid double-deck stroller according to claim 4, wherein said stopper (16) has a guide surface, and said slider is in sliding contact with said guide surface when said slider is slid from one side of said stopper (16) to the other side of said stopper (16) to change said second connection end from said unlocked state to said locked state.
6. A quick folding double-deck stroller according to claim 4, characterized in that it comprises folding legs (4), said folding legs (4) being provided on the lower panel (3).
7. The quick folding double-deck cart according to claim 6, characterized in that said folding legs (4) comprise leg hinge seats (41), leg rods (44) and fixing rods (46);
the leg supporting rod (44) is rotatably connected with the leg supporting hinge seat (41), the leg supporting rod (44) is in a first state when rotating, a waist-shaped groove (47) is formed in the leg supporting rod (44), a first notch (43) is formed in the leg supporting hinge seat (41), one end of a fixing rod (46) is located in the waist-shaped groove (47), the fixing rod (46) is connected with the lower panel (3) through an elastic piece, and when the leg supporting rod (44) is in the first state, the fixing rod (46) is located in the first notch (43) under the action of the elastic piece.
8. The quick folding double-deck stroller according to claim 7, wherein the leg hinge base (41) is provided with a second notch, the leg lever (44) has a second state when rotated, and the fixing lever (46) is located in the second notch by the elastic member when the leg lever (44) is in the second state.
9. A foldable rapid double-deck stroller according to claim 8, wherein the leg bar (44) is provided with a rubber support pad (49), the rubber support pad (49) being used as a support for the stroller when the leg bar (44) is in the second state.
10. A quick folding double-deck stroller according to claim 8, characterized in that said leg bar (44) is provided with a bead (45), said lower deck (3) is provided with a bead-locking seat (35), and when the leg bar (44) is in the second state, said bead (45) is located in the bead-locking seat (35).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111157428.3A CN113771925B (en) | 2021-09-30 | 2021-09-30 | Quick foldable double-deck shallow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111157428.3A CN113771925B (en) | 2021-09-30 | 2021-09-30 | Quick foldable double-deck shallow |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113771925A true CN113771925A (en) | 2021-12-10 |
| CN113771925B CN113771925B (en) | 2022-12-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202111157428.3A Active CN113771925B (en) | 2021-09-30 | 2021-09-30 | Quick foldable double-deck shallow |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4249749A (en) * | 1979-03-01 | 1981-02-10 | Leroy Collier | Mobile lift cart |
| CN103693583A (en) * | 2014-01-09 | 2014-04-02 | 北京微纳精密机械有限公司 | Lifting mechanism for feeding in vertical direction |
| CN106429962A (en) * | 2016-08-29 | 2017-02-22 | 成都科创谷科技有限公司 | Removable and telescopic lifting working device |
| CN206368011U (en) * | 2017-01-11 | 2017-08-01 | 江门市鸿力机械有限公司 | A kind of double scissor elevator |
| CN207128936U (en) * | 2017-07-18 | 2018-03-23 | 江西交通职业技术学院 | A kind of portable sub-surface test specimen storage car |
| CN108099980A (en) * | 2017-12-15 | 2018-06-01 | 常州工学院 | A kind of double-decked platform multifunctional trolley |
| CN207466702U (en) * | 2017-07-05 | 2018-06-08 | 天津煋鸟科技有限公司 | A kind of torsion detector mobile device |
| CN208265697U (en) * | 2018-04-18 | 2018-12-21 | 江苏清源建设有限公司 | A kind of road and bridge construction tool fast lifting equipment |
| CN209479726U (en) * | 2019-01-07 | 2019-10-11 | 宜昌金宝乐器制造有限公司 | A kind of grand piano upwelling and down-welling is changed trains or buses |
| CN112109789A (en) * | 2020-10-19 | 2020-12-22 | 国网新疆电力有限公司乌鲁木齐供电公司 | Portable sulfur hexafluoride gas cylinder carrying device |
| CN214299088U (en) * | 2020-12-29 | 2021-09-28 | 济阳东方液压机械有限公司 | Hydraulic lifting platform with locking mechanism |
-
2021
- 2021-09-30 CN CN202111157428.3A patent/CN113771925B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4249749A (en) * | 1979-03-01 | 1981-02-10 | Leroy Collier | Mobile lift cart |
| CN103693583A (en) * | 2014-01-09 | 2014-04-02 | 北京微纳精密机械有限公司 | Lifting mechanism for feeding in vertical direction |
| CN106429962A (en) * | 2016-08-29 | 2017-02-22 | 成都科创谷科技有限公司 | Removable and telescopic lifting working device |
| CN206368011U (en) * | 2017-01-11 | 2017-08-01 | 江门市鸿力机械有限公司 | A kind of double scissor elevator |
| CN207466702U (en) * | 2017-07-05 | 2018-06-08 | 天津煋鸟科技有限公司 | A kind of torsion detector mobile device |
| CN207128936U (en) * | 2017-07-18 | 2018-03-23 | 江西交通职业技术学院 | A kind of portable sub-surface test specimen storage car |
| CN108099980A (en) * | 2017-12-15 | 2018-06-01 | 常州工学院 | A kind of double-decked platform multifunctional trolley |
| CN208265697U (en) * | 2018-04-18 | 2018-12-21 | 江苏清源建设有限公司 | A kind of road and bridge construction tool fast lifting equipment |
| CN209479726U (en) * | 2019-01-07 | 2019-10-11 | 宜昌金宝乐器制造有限公司 | A kind of grand piano upwelling and down-welling is changed trains or buses |
| CN112109789A (en) * | 2020-10-19 | 2020-12-22 | 国网新疆电力有限公司乌鲁木齐供电公司 | Portable sulfur hexafluoride gas cylinder carrying device |
| CN214299088U (en) * | 2020-12-29 | 2021-09-28 | 济阳东方液压机械有限公司 | Hydraulic lifting platform with locking mechanism |
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| CN113771925B (en) | 2022-12-09 |
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