WO2006102822A1

WO2006102822A1 - A trolley shelf and a fastening device thereof

Info

Publication number: WO2006102822A1
Application number: PCT/CN2006/000094
Authority: WO
Inventors: Jian Liu; Jianping Li
Original assignee: China International Marine Containers(Group) Co., Ltd.; Tianjin Cimc Logistigs Equipment Co., Ltd
Priority date: 2005-04-01
Filing date: 2006-01-20
Publication date: 2006-10-05
Also published as: CN2794960Y

Abstract

The present invention discloses a trolley shelf, and a fastening device thereof for fastening the trolley shelf onto the trolley bottom frame. The shelf comprises at least an outer frame formed of a pair of longitudinal frame beams and a pair of transversal frame beams, and at least two central grids the ends of which are connected onto the transversal frame beams between the longitudinal frame beams. The fastening device includes: a connecting rod which removably mounted in one end of the central grids; two connecting means connected onto each end of the connecting rod, each of them is provided with a locking pin; a spring mounted around one end of the connecting rod, and two ends of the spring are abutted against the connecting means and the central grids; locators on which there is provided a locating notch mating to the locking pin, the locators are mounted onto the trolley bottom frame at the predetermined positions corresponding to the locking pins, wherein the locking pins can be moved relative to the locating notches for locking at or disengaging from the locating notches, thereby the shelf is fastened or released relative to the trolley bottom frame.

Description

Trolley shelving and fixing device thereof

The present invention relates to a trolley shelf, and more particularly to a trolley shelf with a fixture and a fixture therefor. Background technique

Japanese Patent Application No. 06-135566, entitled "Floor Frame Fixing Device", discloses a wheeled trolley. As shown in FIG. 1A to FIG. 1D, the shelf 13 of the trolley can pull a link structure 17 through the control rod 19 to drive the pull rod 18, and the spring compression and resilience mounted on the pull rod 18 drive the positioning claw 15 to be disengaged or worn. It is inserted into the mounting hole 12 of the chassis 11, thereby realizing the disassembly and installation of the trolley shelf. However, the above-mentioned fixed structure of the shelf and the chassis is complicated, and the operation is often unchanged. Invention disclosure

The technical problem to be solved by the present invention is to provide a fixing device for a trolley shelf and a trolley shelf using the same, and effectively realize positioning and fastening of the shelf by using a simple shelf fixing device, which satisfies Easy to assemble and disassemble.

In order to achieve the above object, the present invention provides a fixing device disposed at one end of the trolley shelf for fixing the trolley shelf on the trolley chassis, the shelf including at least one pair of relatives An outer frame composed of a frame longitudinal beam and a pair of oppositely disposed frame beams, and at least two intermediate longitudinal beams connected at both ends to the shelf beam and located between the pair of frame longitudinal beams, characterized in that the fixing The device includes:

a connecting rod, the movable body is installed at one end of the middle longitudinal beam;

Two connecting devices are respectively connected to the two ends of the connecting rod, each connecting device is provided with a locking pin; a spring is sleeved to one end of the connecting rod, and two ends of the spring respectively abut against the connecting device and the Between the intermediate longitudinal beams;

a positioner provided with a positioning slot adapted to the locking pin, the positioner being respectively mounted on the chassis of the vehicle and at a predetermined position corresponding to the locking pin, the locking pin being movable relative to the positioning slot And locking or disengaging the positioning groove to fix or loosen the shelf on the chassis of the vehicle.

The above fixing device is characterized in that the connecting device further comprises: a bottom plate fixedly coupled to the connecting rod and having a back surface in contact with the spring; and

The two connecting side plates are respectively vertically connected to the two ends of the bottom plate through one end thereof, and the two ends of the locking pin are respectively connected to the other ends of the two connecting side plates.

The above fixing device is characterized in that the top end of the positioner is a tapered structure having a guiding action.

The above fixing device is characterized in that the fixing device further comprises two fixed mountings mounted between the intermediate longitudinal beam and the frame longitudinal beam, the fixed mounting seat comprising a bottom panel and a pair of the bottom panel The two side panels are formed by bending, and a circular hole matching the positioner is further disposed on the bottom panel corresponding to the position of the positioner.

The above fixing device is characterized in that the connecting rod has a thread at both ends, and the bottom plate is provided with a through hole matched with the connecting rod, and the bottom plate is fixedly connected with the connecting rod by a lock nut.

In order to achieve the above object, the present invention also provides a trolley shelving, the shelf comprising at least an outer frame composed of a pair of oppositely disposed frame longitudinal beams and a pair of oppositely disposed frame beams, and at least two An intermediate longitudinal beam connected to the shelf beam and located between the longitudinal members of the frame, wherein at least one end of the frame is fixed to the frame of the vehicle by a fixing device, the fixing device comprises: a connecting rod , the activity is installed at one end of the middle longitudinal beam;

Two connecting devices are respectively connected to the two ends of the connecting rod, each connecting device is provided with a locking pin; a spring is sleeved at one end of the connecting rod, and two ends of the spring respectively abut against the connecting device and the Between the intermediate longitudinal beams;

The above-mentioned trolley shelf is characterized in that the trolley shelf further comprises a rotating rod, and is mounted on the other end of the trolley shelf through the rotating through hole on the other side of the shelf longitudinal beam and the intermediate longitudinal beam .

The above-described trolley shelf is characterized in that the shelf longitudinal beam and the intermediate longitudinal beam of the shelf are fitted with the inclined end of the rotating rod.

The above-mentioned trolley shelf is characterized in that the intermediate longitudinal beam and the rotating rod are matched with the mounting position to further have an annular groove, and the groove is further provided with a snap ring.

The above-mentioned trolley shelf is characterized in that the connecting device further comprises:

a bottom plate fixedly coupled to the connecting rod and having a back surface in contact with the spring; and The two connecting side plates are respectively vertically connected to the two ends of the bottom plate through one end thereof, and the two ends of the locking pin are respectively connected to the other ends of the two connecting side plates.

The above-mentioned trolley shelf is characterized in that the top end of the positioner is a tapered structure having a guiding action.

The above-mentioned trolley shelf is characterized in that the fixing device further comprises two fixed mountings mounted between the intermediate longitudinal beam and the frame longitudinal beam, the fixed mounting seat comprising a bottom panel and a bottom panel The pair of sides are formed by bending the opposite side panels, and the bottom panel is further provided with a circular hole matching the positioner corresponding to the position of the positioner.

The above-mentioned trolley shelf is characterized in that both ends of the connecting rod are threaded, and the bottom plate is provided with a through hole matched with the connecting rod, and the bottom plate is fixedly connected with the connecting rod by a lock nut. BRIEF DESCRIPTION OF THE DRAWINGS

1A is a side cross-sectional view showing a conventional fixing device before the trolley shelf and the chassis are fixed; FIG. 1B is a side cross-sectional view showing the conventional fixing device after the trolley shelf and the chassis are fixed; FIG. 1C is now A partial enlarged partial view of a main part of a fixing device;

1D is a schematic plan view of a conventional fixing device; FIG. 2A is a schematic perspective view showing a three-dimensional structure of a trolley with a trolley shelf of the present invention;

2B is a schematic view showing the three-dimensional structure of the trolley after the upper shelf is folded according to the present invention;

Figure 2C is a bottom view of the bottom of Figure 2A;

2D is a schematic perspective view of the chassis and the right frame of FIG. 2A after installation;

3A is a schematic perspective view showing the structure of the trolley of the present invention after the front frame is removed;

Figure 3B is an enlarged schematic view of a portion A in Figure 3A;

3C is an enlarged schematic view of a portion B in FIG. 3A;

Figure 3D is a perspective view showing the three-dimensional structure of the lower shelf of the trolley with the fixing device of Figure 3A; Figure 3E is an enlarged schematic view of the portion C of Figure 3A;

Figure 3F is an enlarged schematic view of a portion D in Figure 3A;

Figure 3G is an enlarged schematic view of the portion E in Figure 3D;

Figure 3H is an enlarged schematic view of a portion F in Figure 3D;

Figure 31 is an enlarged schematic view of a portion G in Figure 3D;

4A is a schematic perspective view of the fixed mounting seat of FIG. 3E; 4B is a schematic perspective view of the positioner of FIG. 3E;

Figure 5A is a perspective view showing the structure of the upper shelf of Figure 2A;

Figure 5B is an enlarged schematic view of a portion H in Figure 5A;

Figure 5C is an enlarged schematic view of a portion I in Figure 5A;

Figure 5D is an enlarged schematic view of a portion J in Figure 5A;

Figure 5E is a schematic view showing the state of the upper shelf in Figure 5A after being folded;

Figure 5F is an enlarged schematic view of a portion K in Figure 5E;

Figure 6 is a schematic view showing the structure of the lower shelf of the trolley in the folded state of the present invention. The best way to implement the invention

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

As shown in FIG. 2A to FIG. 2D, the main body portion of the trolley of the present invention may be composed of a chassis 10, a rear frame 20, a left end frame 30, a right end frame 40, and a front frame 50. Casters 11 are installed at the corners, which provides a strong guarantee for reducing labor intensity and ease of operation. The interior of the car is set up on two shelves. The two-story shelves can be freely disassembled to meet the needs of different cargo storage. The upper and lower shelves 70, 60 can be flexibly used according to the specific conditions of the cargo. The parts of the upper shelf 70 and the left/right end frame are U-shaped slot design, which can be quickly matched with the bracket of the end frame. The upper shelf 70 has a two-stage design, and the two sections are hingedly connected, and the frame design reduces the weight of the box and is more convenient for manual removal. As shown in FIG. 2B, the upper shelf 70 is folded. status. The lower shelf 60 and the chassis 10 are nested and fastened by a fixing device. The fixing device is disposed at one end of the trolley shelf for fixing the lower shelf 60 to the trolley chassis 10, and the lower layer The other end of the shelf 60 is movably mounted by a rotating lever so that the folding of the lower shelf 60 can be achieved. In addition, a tractor 42 is provided at the connection between the right end frame 40 and the base frame 10 for quick and convenient traction of human or machine equipment.

In the present invention, the front frame 50 can be divided into upper/lower left front frame 51/53 and upper/lower right front frame 52/54, and the left and right front frames are locked by a lock connection; and the front frame 50 and the left and right end frames 30, 40 The pairing and folding functions are realized by a hinge connection. The rear frame 20 is in two-stage style, and is connected and foldable by a hinge to ensure that the trolley is folded and stored when it is empty to occupy the minimum storage space. The left end frame 30 is connected to the rear frame 20 and the upper/lower left front frame 51/53 by a hinge; and the left end frame is provided with an anti-collision block, which can effectively prevent damage to the left end frame impact when the upper/lower left front frame is folded. The right end frame 40 is connected to the rear frame 20 and the upper/lower left front frame 52/54 by a hinge. The chassis 10 is divided into two parts: left and right independent left and right chassis, respectively, and left The right end frames 30, 40 and the rear frame 20 are connected to the frame body constituting the bogie. As shown in FIG. 2C and FIG. 2D, four positioning holes 13 and 14 are provided at positions corresponding to the front and rear ends of the left and right chassis, and the front and rear positioning holes can be used for inserting the connecting ring, and the left and right sides of the trolley are reliably connected in the folded state. The chassis is together.

As shown in Fig. 3A, the structure of the trolley of the present invention after the front frame 50 is removed is shown. Referring to Figure 3B, the structure of the bracket 27 of the upper shelf 70 disposed in the rear frame 20 of Figure 3A is clearly illustrated. Fig. 3C clearly shows the structure of the bracket 47 of the upper shelf 70 provided in the right end frame 40 of Fig. 3A. Similarly, a bracket having the same structure as the bracket 47 is also provided on the left end frame 30 for collectively supporting the upper shelf 70.

As shown in Fig. 3D, the three-dimensional structure of the lower shelf 60 of the present invention is shown. The lower shelf 60 includes at least an outer frame 61 composed of a pair of oppositely disposed frame longitudinal beams 62 and a pair of oppositely disposed frame beams 63, and at least one of the ends is coupled to the shelf beam 63 and located at the frame. In the present embodiment, the intermediate longitudinal beam 64 is two, that is, the first intermediate longitudinal beam 641 and the second intermediate longitudinal beam 642, and the lower frame 60 is also provided with the middle. The beam 67 is also provided with a secondary beam 68 above the shelf stringer 62 to enhance the overall strength of the shelf. It can also be seen from the figure that the fixing device is disposed at the end of the lower shelf 60 and the rotating rod 646 is disposed at the other end. In the present invention, each of the longitudinal beams of the lower shelf (including the frame longitudinal beam 62 and the intermediate longitudinal beam 64) is machined through the through holes, and the installation space is reserved for the rotating rod, and the end also has a oblique slit 644. As shown in FIG. 31, the rotating rod 646 is also provided with an annular groove 645 at the matching position of the middle intermediate longitudinal beam 64. After the rotating rod 646 is inserted, it is only necessary to install the snap ring 647 at the groove 645 to ensure the rotating rod. 646 pulled out.

As shown in Figs. 3E to 3H, the structure of the fixing device 65 is clearly shown. The fixing device 65 includes: a connecting rod 651 fixed by a through hole disposed at the end of the intermediate longitudinal beam 64, and movable in the through hole by an external force; two connecting devices 652 respectively connected to the connection Each of the connecting rods 652 is provided with a locking pin 6521; a spring 653 is sleeved on one end of the connecting rod 651, and two ends of the spring 653 respectively abut against the connecting device 652 and the middle longitudinal Between the beams 64; the positioner 18 is provided with a positioning groove 181 (shown in FIG. 4B) adapted to the locking pin, and the positioner 18 is respectively mounted on the trolley chassis 10 and the lock The pin 6521 corresponds to a predetermined position; and a U-shaped fixed mount 69, mounted between the frame rail 62 and the intermediate rail 64, as shown in FIG. 4A, may include a bottom panel and a side panel, and the bottom panel A circular aperture 691 is also provided that is adapted to the positioner 18 for allowing the locator 18 to pass smoothly when secured and to facilitate sliding of the attachment device 652 on its bottom panel. In this embodiment, the connecting device 652 is a U-shaped structure, The plate 6522 and the two connecting side plates 6523 are vertically connected to the connecting rod 651, and are in contact with the spring 653 on the back side thereof, and the two connecting side plates 6523 are respectively connected to the bottom plate 6522 through one end thereof. The two ends are vertically connected, and the two ends of the locking pin 6521 are respectively connected to the other ends of the two connecting side plates 6523; the locking pin 6521 can be locked in the positioning groove 181 or away from the positioning groove 181 by an external force. The shelf 60 is thereby fixed or loosened on the trolley chassis 10.

Preferably, the connecting rod 651 of the present invention further has a thread at both ends, and the bottom plate 6522 is provided with a through hole. The connecting rod 651 is connected to the lock nut 6512 through the through hole, and the fixed connection of the connecting rod 651 and the bottom plate 6522 can be realized by tightening the nut. Moreover, as shown in FIG. 4B, the positioner 18 of the present invention is a structure of an upper cone lower column, that is, the tip end thereof is a tapered structure 183 having a guiding function, and the lower end thereof is a columnar structure, and the columnar structure surface has The positioning groove 181 is matched with the locking pin 6521. When the lower shelf is lowered, the tapered structure of the positioning device 18 can play a good guiding role, but the outer shape is not limited to the tapered structure, which can ensure The lower shelf can be imported smoothly.

According to the shelf structure of the present invention as described above, the lower shelf can be detachably realized to fold the trolley, as shown in FIG. 3E. When the shelf is removed, the hand is applied by the pressing direction indicated by the arrow in the figure to fix The locking pin 6521 at the front end of the device 65 is disengaged from the recess 181 of the retainer 18 of the chassis 10, while the connecting rod 651 drives the connecting device 652 at the rear end to move in the direction of the arrow in Fig. 3F, thereby realizing the rear locking pin 6521. The locator 18 is removed from the rear end of the chassis, and the lower shelf 60 can be picked up at this time to disassemble the lower shelf. On the contrary, the lower shelf 60 can be directly lowered during installation. After the positioning device 18 passes through the circular hole 691, under the introduction of the tapered structure 183, the locking pin 6521 can be directly pressed down to the groove by pressing the lower shelf 60. The position of 181, and under the action of the spring 653, is embedded in the recess 181, thereby achieving the mounting of the lower shelf 60.

As shown in Figs. 5A to 5F, the structure of the upper shelf 70 in the present invention is shown. The upper shelf 70 has a two-stage design, a first segment 71 and a second segment 72, which are connected by a hinge 73, and a U-shaped hanging portion is arranged on both sides of the upper shelf 70 and the left/right end frame. The slot 78 can be quickly mated to the bracket of the end frame, and the rear side is further provided with a rear frame hanging slot 75 which is matched with the bracket on the rear frame 20.

As shown in FIG. 6, after the upper frame 70 is removed, the lower shelf 60 can be rotated and folded on the left end frame 30 by the rotating lever 646 after being disengaged from the fixing device, and the folding is effectively reduced in the non-working state. Space.

In the present invention, the connecting ring 16 can have a U-shaped structure. As shown in FIG. 6, the bent vertical side is long and short, and the end of the long bent side has a through hole, which can be prevented by inserting the split pin. The pieces fall off. In the trolley After folding, the two sections of the chassis 10 can be contacted, and the connecting ring 16 on the left side chassis is pulled up, the plane is rotated clockwise, and then inserted into the corresponding positioning hole 13 of the right chassis (as shown in FIG. 2D). , to achieve a reliable fixed connection of the chassis after the folding of the trolley. In order to quickly reflect the transport (storage) items, a nameplate can also be placed on the left end frame, which can be achieved by inserting (storing) the item information nameplate.

The invention may, of course, be embodied in a variety of other embodiments without departing from the spirit and scope of the invention. Changes and modifications are intended to be included within the scope of the appended claims. Industrial applicability

The fixing device of the trolley shelf of the invention and the trolley shelf using the fixing device can effectively realize the positioning and fastening of the shelf by the shelf fixing device, and the disassembly is very convenient, the structure is simple, and the movable structure is The mounting structure realizes the folding of the trolley shelf, effectively reducing the space in the non-working state.

Claims

Claim

A fixing device disposed at one end of the trolley shelf for fixing the trolley shelf on the trolley chassis, the shelf comprising at least a pair of oppositely disposed frame longitudinal beams and a An outer frame composed of oppositely disposed frame beams, and at least two intermediate longitudinal members connected to the shelf beam and located between the pair of frame longitudinal beams, wherein the fixing device comprises:

2. The fixing device according to claim 1, wherein the connecting device further comprises:

a bottom plate fixedly coupled to the connecting rod and having a back surface in contact with the spring; and

The fixing device according to claim 2, wherein the top end of the positioner is a tapered structure having a guiding action.

The fixing device according to claim 3, further comprising two fixed mountings mounted between the intermediate longitudinal beam and the frame longitudinal beam, the fixed mounting base comprising a bottom panel and A pair of opposite sides of the bottom panel are formed by bending a pair of sides, and a circular hole matching the positioner is disposed on the bottom panel corresponding to the position of the positioner.

The fixing device according to claim 4, wherein the connecting rod has threads at both ends, and the bottom plate is provided with a through hole matching the connecting rod, and the bottom plate is fixed to the connecting rod by a lock nut connection.

6. A trolley shelf, the shelf comprising at least an outer frame consisting of a pair of oppositely disposed frame rails and a pair of oppositely disposed frame beams, and at least two ends connected to the shelf beam and An intermediate stringer between the longitudinal members of the frame, characterized in that at least one end thereof is fixed by a fixing device The shelf is mounted on the chassis of the vehicle, and the fixing device comprises:

7. The trolley shelf according to claim 6, wherein the trolley shelf further comprises a rotating lever, and is mounted on the shelf longitudinal beam and the rotating through hole at the other end of the intermediate longitudinal beam. The other end of the trolley shelf.

8. The trolley shelf of claim 7, wherein the shelf longitudinal beam and the intermediate longitudinal beam are fitted to the rotating rod at one end with an angled cut.

9. The trolley rack according to claim 8, wherein the intermediate longitudinal beam and the rotating rod are matched with the mounting position and further have an annular groove, and the groove is further provided with a snap ring.

The trolley shelf according to claim 7 or 8 or 9, wherein the connecting device further comprises:

a bottom plate fixedly connected to the connecting rod, and a back surface thereof is in contact with the spring; and two connecting side plates are respectively perpendicularly connected to the two ends of the bottom plate through one end thereof, and the two ends of the locking pin are respectively connected to the two Connect the other end of the side panel.

11. The trolley shelf of claim 10, wherein the top end of the locator is a tapered structure having a guiding action.

12. The trolley rack of claim 11, wherein the fixing device further comprises two fixed mountings mounted between the intermediate longitudinal beam and the frame longitudinal beam, the fixed mounting bracket comprising a bottom panel And a side panel formed by bending a pair of opposite sides of the bottom plate, and a circular hole matching the positioner is further disposed on the bottom panel corresponding to the position of the positioner.

13. The trolley rack according to claim 12, wherein the connecting rod has threads at both ends, and the bottom plate is provided with a through hole matching the connecting rod, and the bottom plate is connected to the connecting nut through the lock nut The rod is fixedly connected.