Frame picture cart

Abstract

The utility model discloses a frame painting cart which comprises a base and idler wheels, a fixed leaning frame is arranged in the middle of the upper face of the base, and bearing frames are arranged on the two sides of the fixed leaning frame. The bearing frame is an extensible bearing frame capable of increasing the bearing number of the framed picture; the extensible bearing frame has the advantages that an existing bearing frame is designed into the extensible bearing frame, and the extensible bearing frame can be adjusted according to the number of frame pictures needing to be transported so as to reduce transportation times; according to one expansion mode, the extensible bearing frame comprises a fixed bearing plate fixed to one side of the base and a turnover bearing plate hinged to the outer side of the fixed bearing plate through a hinge. According to the other expansion mode, the extensible bearing frame comprises movable bearing plates, the movable bearing plates are connected to a track in a sliding mode, the track penetrates through the fixed leaning frame and is fixed to the base, and a lead screw synchronous telescopic mechanism is connected between the movable bearing plates.

Description

Technical Field

[0001] The utility model relates to the technical field of frame painting transport tools, in particular to a frame painting cart. Background Art

[0002] When transporting items such as picture frames, placing them on an ordinary cart may cause them to tip over and cause damage to the items. For this reason, relevant technicians have developed a picture frame cart based on glass transport devices. The existing picture frame cart includes a base and its rollers. A support frame, which can be called a backer, is fixed in the middle of the base. Fixed bearing frames are symmetrically provided on both sides of the support frame. The bearing plates of the bearing frames are arranged obliquely inward to make the framed picture lean against the support frame. Since glass is thin and heavy, the bearing frame of the imitated picture frame cart is designed to be relatively narrow, and the thickness of the picture frame is several times thicker than that of the glass plate. As a result, the number of picture frames that can be carried is several times less than the number of glass plates, and the transportation efficiency is low, which needs to be improved. Utility Model Content

[0003] A technical problem to be solved by the present application is to overcome the defects of the above-mentioned related technologies and provide a framed painting cart that can be adjusted according to the number of framed paintings that need to be carried to ensure high transportation efficiency.

[0004] The technical solution adopted by the present application to solve the technical problem is: a frame painting cart, including a base and rollers, a fixed support frame is provided in the middle of the base, and supporting frames are provided on both sides of the fixed support frame; the supporting frames are expandable supporting frames that can increase the number of frame paintings that can be carried.

[0005] Compared with the related art, the utility model has the following advantages: the existing carrying frame is designed as an expandable carrying frame, which can be adjusted according to the number of framed paintings to be transported, so as to reduce the number of transportation times.

[0006] One expansion method is that the expandable carrier frame includes a fixed carrier plate fixed to one side of the base and a flip carrier plate hinged to the outer side of the fixed carrier plate through a hinge. The structure is simple and the transformation cost is low.

[0007] As an improvement, the flip-type load-bearing plate includes a main body plate and baffles extending in opposite directions at both ends thereof, and the baffles near the hinge abut against the outer end of the fixed load-bearing plate when opened, so as to enhance the load-bearing capacity.

[0008] Another expansion method is that the expandable carrier includes a movable carrier plate, the movable carrier plate is slidably connected to a track, the track passes through a fixed support frame and is fixed to a base, and a screw rod synchronous telescopic mechanism is connected between the movable carrier plates. The operation is synchronized, and the expansion operation can be smoothly performed during loading.

[0009] As an improvement, the screw rod synchronous telescopic mechanism includes a screw rod, which is provided with two sections of threads with opposite rotation directions, each section of the threads is screwed with a nut, and a push-pull rod is hinged between the nut and the movable bearing plate; the rotation driving member of the screw rod is a crank, a motor, or a crank and a motor connected by a clutch, and the clutch is connected to the screw rod. The crank can be operated manually without installing a power supply, and can be adjusted according to real-time needs; the motor drive is used, and the expansion speed is fast, and precise control requires the installation of a control circuit board, which will increase the cost a lot; a clutch can also be added to achieve manual and automatic operation.

[0010] As an improvement, the outer ends of the movable bearing plate are hinged with a first stopper and a second stopper, the hinge point of the first stopper is higher than the hinge point of the second stopper, the first stopper is provided with a first limiting protrusion on the inner side of the first stopper, and the second stopper is provided with a second limiting protrusion that can be sunken inward on the inner side of the second stopper, so as to form a barrier for the framed painting that is tipping outward; and the first stopper and the second stopper can be folded together so as not to hinder the taking and placing operation of the framed painting on the framed painting cart, first sunken the second limiting protrusion, rotate the second stopper so that its free end rests on the first limiting protrusion, and then rotate the first stopper to rest on the second stopper.

[0011] As an improvement, the fixed support frame is provided with a lifting support frame, the lifting support frame includes a sawtooth frame, a lifting frame whose bottom plate moves in the sawtooth frame, and a tension spring for holding the lifting frame to make the lifting frame and the sawtooth frame clamped, the sawtooth frame and the two ends of the tension spring are respectively fixedly connected in the fixed support frame, the lifting frame is used for the top rod of the framed painting to be arranged above the fixed support frame, the two lifting rods connected under the top rod are respectively inserted from the flat top plate of the fixed support frame, the bottom ends of the two lifting rods are connected to the bottom plate, and the two ends of the bottom plate are respectively clamped in the two tooth grooves of a row of the sawtooth frame. The support height can be increased and used when carrying taller framed paintings; the height can be adjusted only after the lifting frame is rotated to make its bottom plate disengage from the two tooth grooves of a row of the sawtooth frame, and under the clamping action of the tension spring, the bottom plate of the lifting frame will not disengage from the two tooth grooves of a row of the sawtooth frame for no reason.

[0012] Preferably, both ends of the top rod of the lifting frame protruding from the lifting rod are sleeved with flexible sheaths, which play a damping role to reduce the shaking of the framed picture.

[0013] Preferably, hidden telescopic plates are also installed at both ends of the fixed support frame. The hidden telescopic plates include widened plates and end plates. When the hidden telescopic plates are opened, the relying surface of the widened plates is flush with the relying surface of one of the relying plates of the fixed support frame, and the inner end surface of the widened plates is attached to the outer end surface of this relying plate. When the hidden telescopic plates are closed, the outer surface of the end plates is flush with the outer surface of the vertical plates of the fixed support frame, and the inner end of the end plates is attached to the inner end of this vertical plate. The outer ends of the widened plates are connected to the end plates. This can increase the relying width and is used when carrying relatively wide framed paintings.

[0014] Preferably, the widened plates are connected to the fixed support frame through two groups of damping hinge mechanisms. Description of the Drawings

[0015] Figure 1 is the front orthographic perspective view of the fully extended state of Embodiment 1.

[0016] Figure 2 is the perspective view of the unfolded state of one set of the expandable carrier and the hidden telescopic plate in Embodiment 1.

[0017] Figure 3 is the rear orthographic perspective view of the fully extended state of Embodiment 1.

[0018] Figure 4 is the rear orthographic perspective view of the fully extended state of Embodiment 1 (omitting the rear relying plate).

[0019] Figure 5 is the rear orthographic perspective view of the unfolded state of one set of the expandable carrier and the hidden telescopic plate in Embodiment 1 (omitting the rear relying plate).

[0020] Figure 6 is the rear orthographic perspective view of the base, rollers, expandable carrier and retaining bar in Embodiment 2.

[0021] Figure 7 is the front orthographic perspective view of the base, rollers, expandable carrier and retaining bar in Embodiment 2.

[0022] Description of the Reference Numerals:

[0023] 1. Base, 2. Roller, 3. Fixed support frame, 31. Support plate, 32. Bracket plate, 33. Flat top plate, 4. Expandable support frame, 41. Fixed support plate, 42. Flip support plate, 421. Baffle, 43. Hinge, 4A. Movable support plate, 4B. Track, 4C. Screw, 4D. Nut, 4E. Articulated rod, 4F. Crank handle, 5. Lifting support frame, 51. Sawtooth frame, 511. Tooth groove, 52. Lifting frame, 521. Lifting rod, 522. Bottom plate, 523. Top rod, 524. Flexible sheath, 53. Tension spring, 6. Hidden telescopic plate, 71. First baffle, 72. Second baffle, 73. First limiting protrusion, 74. Second limiting protrusion. DETAILED DESCRIPTION

[0024] First, those skilled in the art should understand that these implementations are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0025] The utility model is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] The present application is a picture frame cart, comprising a base 1 and rollers 2. A fixed support frame 3 is provided in the middle of the base 1, and supporting frames are provided on both sides of the fixed support frame 3; the supporting frames are expandable supporting frames 4 that can increase the number of picture frames they can carry.

[0027] The frame picture cart of embodiment 1 is as follows Figures 1 to 5 As shown, the expandable support frame 4 includes a fixed support plate 41 fixed to one side of the base 1 and a flip support plate 42 hinged to the outer side of the fixed support plate 41 through a hinge 43 .

[0028] The flip-type carrying plate 42 includes a main body plate and baffles 421 extending in opposite directions on both sides thereof. The baffles 421 near the hinged portion abut against the outer end of the fixed carrying plate 41 when opened.

[0029] As an improvement, a lifting support frame 5 is provided on the fixed support frame 3. The lifting support frame 5 includes a serrated frame 51, a lifting frame 52 whose bottom plate 522 is movable within the serrated frame 51, and a tension spring 53 for clamping the lifting frame 52 to engage the lifting frame 52 with the serrated frame 51. The two ends of the serrated frame 51 and the tension spring 53 are respectively fixedly connected within the fixed support frame 3. A top rod 523 for supporting the frame painting is arranged above the fixed support frame 3. Two lifting rods 521 connected to the lower part of the top rod 523 respectively penetrate through the flat top plate 33 of the fixed support frame 3. The bottom ends of the two lifting rods 521 are connected to the bottom plate 522. The two ends of the bottom plate 522 are respectively clamped into two tooth grooves 511 of a certain row of the serrated frame 51. Among them, the opening direction of the tooth groove 511 is opposite to the clamping direction of the tension spring 53, and the lifting rods 521 are respectively arranged outside the vertical frame plates on both sides of the serrated frame 51.

[0030] Preferably, flexible sheaths 524 are sleeved on both ends of the top rod 523 of the lifting frame 52 protruding beyond the lifting rods 521.

[0031] As an improvement, hidden telescopic plates 6 are further installed at both ends of the fixed support frame 3. The hidden telescopic plates 6 include a widening plate 61 and an end plate 62. When the hidden telescopic plates 6 are opened, the supporting surface of the widening plate 61 is flush with the supporting surface of one side supporting plate of the fixed support frame 3, and the inner end surface of the widening plate 61 is attached to the outer end surface of this supporting plate. When the hidden telescopic plates 6 are closed, the outer surface of the end plate 62 is flush with the outer surface of the vertical plate of the fixed support frame 3, and the inner end of the end plate 62 is attached to the inner end of this vertical plate. The outer end of the widening plate 61 is connected to the end plate 62. It can increase the supporting width and is used when handling relatively wide frame paintings.

[0032] Preferably, the widening plate 61 is connected to the fixed support frame 3 through two groups of damping hinge mechanisms 63.

[0033] The frame painting trolley of Embodiment 2 is basically the same as that of Embodiment 1, except that, as Figure 6 and 7 shown, the expandable carrier 4 includes a movable carrier plate 4A. The movable carrier plate 4A is slidably connected to two parallel tracks 4B through sliders (not marked in the figure). The tracks 4B pass through the bottom of the fixed support frame 3 and are fixed on the base 1. A lead screw synchronous telescopic mechanism is connected between the movable carrier plates 4A.

[0034] Preferably, the screw rod synchronous telescopic mechanism includes a screw rod 4C, which is provided with two sections of threads with opposite rotation directions, each section of the threads is screwed with a nut 4D, and a push-pull rod 4E is hinged between the nut 4D and the movable bearing plate 4A, and there are four push-pull rods 4E; the rotation driving member of the screw rod 4C is a crank 4F, a motor, or a crank 4F and a motor connected by a clutch, and the clutch is connected to the screw rod. The rotation of the screw rod 4C drives the nut to move toward each other or move away from each other in the opposite direction, drives the push-pull rod 4E to rotate, and the push-pull rod 4E pushes the movable bearing plate 4A to move inward or outward under the guidance of the track 4B.

[0035] As an improvement, a first baffle rod 71 and a second baffle rod 72 are hinged on both sides of the outer end of the movable supporting plate 4A, the hinge point of the first baffle rod 71 is higher than the hinge point of the second baffle rod 72, a first limiting protrusion 73 is provided on the inner side of the first baffle rod 71, and a second limiting protrusion 74 that can be recessed is provided on the inner side of the second baffle rod 72.

[0036] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may occur depending on design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A picture frame cart, comprising a base and rollers, wherein a fixed support frame is provided in the middle of the base, and bearing frames are provided on both sides of the fixed support frame, characterized in that: The carrier frame is an expandable carrier frame that can increase the number of framed paintings it can carry; the expandable carrier frame includes a fixed carrier plate fixed to one side of the base and a flip carrier plate hinged to the outer side of the fixed carrier plate through a hinge, or the expandable carrier frame includes a movable carrier plate, the movable carrier plate is slidably connected to a track, the track passes through a fixed supporting frame and is fixed to the base, and a screw rod synchronous telescopic mechanism is connected between the movable carrier plates.

2. The frame painting cart according to claim 1, characterized in that: The flip-type carrying plate comprises a main body plate and baffles extending in opposite directions on both sides thereof, and the baffles near the hinged part abut against the outer end of the fixed carrying plate when opened.

3. The frame painting cart according to claim 1, characterized in that: The screw rod synchronous telescopic mechanism includes a screw rod, which is provided with two sections of threads with opposite rotation directions, each section of the threads is screwed with a nut, and a push-pull rod is hinged between the nut and the movable bearing plate; the rotating drive part of the screw rod is a crank, a motor, or a crank and a motor connected by a clutch, and the clutch is transmission connected to the screw rod.

4. The picture frame cart according to claim 3, characterized in that: The first baffle plate and the second baffle plate are hingedly connected at both sides of the outer end thereof. The hinge point of the first baffle plate is higher than the hinge point of the second baffle plate. The first baffle plate is provided with a first limiting protrusion on the inner side thereof, and the second baffle plate is provided with a second limiting protrusion which can be recessed on the inner side thereof.

5. The frame painting cart according to any one of claims 1 to 4, characterized in that: The fixed supporting frame is provided with a lifting supporting frame, and the lifting supporting frame includes a serrated frame, a lifting frame whose bottom plate moves inside the serrated frame, and a tension spring for holding the lifting frame so that the lifting frame and the serrated frame are clamped together. The two ends of the serrated frame and the tension spring are respectively fixedly connected in the fixed supporting frame. The lifting frame is used for a top rod for the framed painting to lean on, and is arranged above the fixed supporting frame. Two lifting rods connected under the top rod are respectively inserted from the flat top plate of the fixed supporting frame, and the bottom ends of the two lifting rods are connected to the bottom plate, and the two ends of the bottom plate are respectively clamped in two tooth grooves in a row of the serrated frame.

6. The picture frame cart according to claim 5, characterized in that: The top rod of the lifting frame protrudes from both ends of the lifting rod and is sleeved with flexible sheaths.

7. The frame picture cart according to any one of claims 1 to 4, characterized in that: Hidden telescopic plates are also installed at both ends of the fixed supporting frame, and the hidden telescopic plates include a widening plate and an end plate; when the hidden telescopic plate is opened, the supporting surface of the widening plate is flush with the supporting surface of a supporting plate on one side of the fixed supporting frame, and the inner end surface of the widening plate is in contact with the outer end surface of the supporting plate; when the hidden telescopic plate is closed, the outer surface of the end plate is flush with the outer surface of the vertical plate of the fixed supporting frame, and the inner end of the end plate is in contact with the inner end of the vertical plate; the outer end of the widening plate is connected to the end plate.

8. The picture frame cart according to claim 7, characterized in that: The widening plate is connected to the fixed supporting frame through two groups of damping hinge mechanisms.

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