Single-extending-position plate fork

Abstract

A single-extending-position plate fork relates to the technical field of warehousing systems and comprises a driving device, a lower fork, a middle fork and an upper fork, the driving device is fixed at the bottom of the lower fork, a main body of the middle fork is a connecting plate, the lower fork, the middle fork and the upper fork are limited through front-back sliding of the connecting plate and limit left-right and up-down actions of the middle fork, and a main body of the lower fork is a bottom plate. Adjusting supports are installed on one side of the front end and the other side of the rear end of the upper portion of the bottom plate, pull rods are fixedly installed outside the adjusting supports, a main body of the upper fork is a fork plate, installation blocks are fixedly installed on one side of the front end and the other side of the rear end of the lower portion of the fork plate, and chains are installed between the pull rods and the installation blocks. According to the scheme, the overall thickness can be reduced, the thickness of the extension fork part is reduced, and the structural strength and stability of the plate fork are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to warehousing system technical field, concretely is a single stretch position plate fork. BACKGROUND

[0002] At present, the single stretch plate fork used on the market is generally divided into four parts: upper fork, middle fork, lower fork and driving device. The driving device provides power directly to the middle fork. The lower fork plays a role in fixing the plate fork and limiting the left and right directions of the middle fork, providing the middle fork with forward and backward sliding. The middle fork connects the lower fork and the upper fork, and in the working process, it slides with the driving device, and the upper fork slides the same distance under the chain drive.

[0003] For example, the Chinese authorized patent "Three-section type goods taking plate fork" with publication number CN213084346U, including a flat lower fork, a middle fork arranged on the lower fork, and an upper fork arranged on the middle fork. The lower fork bottom is provided with a motor, a synchronous belt driving wheel driven by the motor, and a double-sided tooth synchronous belt driven by the synchronous belt driving wheel. The lower surface of the middle fork is provided with a longitudinal tooth plate. The double-sided tooth synchronous belt directly matches the lower surface of the middle fork, reducing the overall thickness. The lower fork, middle fork and upper fork are made of aluminum plate, reducing the overall weight of the goods taking plate fork. The guide groove plate and the vertical rib are made of steel material, which improves the overall strength of the goods taking plate fork.

[0004] The plate fork taking and placing goods extension part of the above-mentioned prior art is the upper fork and the middle fork. The upper fork has no compression space, and the existing design of the middle fork has optimization space. The traditional middle fork connecting plate and rack installation method is that the rack is directly installed on the bottom surface of the connecting plate. The thickness occupied by the first level of the middle fork is the height of the connecting plate plus the height of the rack. This design increases the overall thickness of the extension part, so it does not meet the existing demand. To solve this problem, we propose a single stretch position plate fork. Utility model content

[0005] The utility model aims to provide a single stretch position plate fork to solve the problem of increasing the overall thickness of the extension part and poor plate fork structure stability caused by the thickness occupied by the first level of the middle fork being the height of the connecting plate plus the height of the rack.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: a single stretch position fork, including drive arrangement, lower fork, middle fork and upper fork, drive arrangement is fixed in the bottom of lower fork, the main body of middle fork is connecting plate, and lower fork, middle fork and upper fork are limited through connecting plate sliding forwards and backwards, and the action of middle fork is limited left and right and up and down, the main body of lower fork is bottom plate, one side of the upper front end and the other side of the rear end of bottom plate are all installed with adjusting support, the outside fixed mounting of adjusting support has pull rod, the main body of upper fork is fork plate, one side of the upper front end and the other side of the rear end of fork plate are all fixedly installed with mounting block, and chain is installed between pull rod and mounting block.

[0007] Preferably, the drive device includes two side fixed plates, and the side fixed plates are fixed with the bottom plate by bolts, one side of the two side fixed plates is fixedly installed with a main mounting plate, one side of the main mounting plate is fixedly installed with a motor, the other side of the two side fixed plates is fixedly installed with an auxiliary mounting plate, a limiter mounting plate is arranged between the auxiliary mounting plates, and the limiter mounting plate is fixed with the main mounting plate by bolts, one side of the limiter mounting plate is fixedly installed with a torsion limiter, the output shaft of the motor is installed with a drive gear, and the output shaft end limits the movement of the drive gear by a shaft end baffle, the output shaft of the torsion limiter is installed with a pinion, and the pinion is meshed and connected with the drive gear.

[0008] Preferably, the main mounting plate and the auxiliary mounting plate are rotatably installed with an axle at the upper end, the outside of the axle is fixedly installed with a driven gear, and the driven gears are respectively meshed and connected with the drive gears.

[0009] Preferably, the number of teeth of the drive gear and the pinion is four to one, and the number of teeth of the drive gear and the driven gear is two to one.

[0010] Preferably, the side plates are fixedly installed on both sides of the bottom plate, a plurality of first guide wheels and friction blocks are installed on the side plates, the first guide wheels are rotatably connected with the side plates, and the friction blocks are fixed with the side plates, and the rear side of the upper end surface of the bottom plate is fixedly installed with a baffle by bolts.

[0011] Preferably, long plates are fixedly installed on both sides of the bottom of the fork plate, a plurality of second guide wheels and the same friction blocks as on the side plates are installed on the outside of the long plates.

[0012] Preferably, four groups of symmetrical guide grooves are arranged in the inside of the connecting plate, two guide grooves on the outside of the connecting plate are slidingly limited with the first guide wheels, and two guide grooves in the inside of the connecting plate are slidingly limited with the second guide wheels.

[0013] Preferably, a rack is arranged at the recess in the middle of the bottom of the connecting plate, and the front driven gear is engaged with the rack, chain wheels are rotatably installed on the outer part of the chain wheel shafts which are fixedly installed at the front end of one side of the bottom of the connecting plate and the rear end of the other side of the bottom, and the chain passes through the chain wheels.

[0014] Preferably, recesses for the chain to pass through are reserved above and below the inner guide groove and the outer guide groove on the connecting plate.

[0015] Preferably, the bottom plate is fixed on the loading platform by bolts.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] 1. Compared with the traditional plate fork, the main components of the middle fork of the utility model are the connecting plate, recesses for the chain to pass through are reserved above and below the two sides of the connecting plate, the space occupied by the chain is avoided, a recess for installing the rack is reserved in the middle of the connecting plate, the space occupied by the rack is avoided, the connecting plate is integrally cut and processed, the connecting plate is not assembled by splicing, and the thickness occupied by the screw assembly of the connecting plate is reduced.

[0018] 2. Compared with the traditional plate fork, the outermost guide groove of the middle fork connecting plate cooperates with the guide wheel of the upper fork, the inner guide groove of the middle fork cooperates with the guide wheel of the lower fork, the outer guide wheel of the middle fork cooperates with the guide wheel of the lower fork in the utility model, and the inner guide groove of the middle fork cooperates with the guide wheel of the upper fork. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the front view of the utility model;

[0020] Figure 2 It is the bottom view of the utility model;

[0021] Figure 3 It is the schematic view of the transmission structure of the utility model;

[0022] Figure 4 It is the right view of the utility model;

[0023] Figure 5 It is the top view of the utility model;

[0024] Figure 6 It is the schematic view of the connecting plate structure of the utility model.

[0025] In the figure: 1, driving device; 2, lower fork; 3, middle fork; 4, upper fork; 5, motor; 6, driving gear; 7, pinion; 8, torque limiter; 9, driven gear; 10, main mounting plate; 11, shaft end baffle; 12, auxiliary mounting plate; 13, axle; 14, side fixing plate; 15, limiter mounting plate; 16, bottom plate; 17, side plate; 18, first guide wheel; 19, friction block; 20, adjusting support; 21, stop block; 22, pull rod; 23, chain; 24, mounting block; 25, connecting plate; 26, rack; 27, sprocket; 28, sprocket shaft; 29, fork plate; 30, second guide wheel; 31, long plate. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0027] Please refer to Figures 1-6 An embodiment provided by the utility model: a single extension plate fork, comprising driving device 1, lower fork 2, middle fork 3 and upper fork 4, driving device 1 is fixed at the bottom of lower fork 2, the main body of middle fork 3 is connecting plate 25, lower fork 2, middle fork 3 and upper fork 4 slide forward and backward through connecting plate 25 and are limited, and the left and right and up and down actions of middle fork 3 are limited, the main body of lower fork 2 is bottom plate 16, and bottom plate 16 is fixed on the loading platform through bolts, one side of the front end and the other side of the rear end above bottom plate 16 are both provided with adjusting support 20, pull rod 22 is fixedly installed outside adjusting support 20, the main body of upper fork 4 is fork plate 29, one side of the front end and the other side of the rear end below fork plate 29 are both fixedly installed with mounting block 24, chain 23 is installed between pull rod 22 and mounting block 24;

[0028] The light single extension plate fork is characterized in that it is used for taking and placing light goods, has a light weight, a compact structure design, can be used in narrow space, has strong adaptability to goods, can carry various specifications of plate-shaped goods, the space utilization rate of the middle fork of the existing traditional single extension plate fork is not enough, and the overall height and the extension thickness of the plate fork can be further reduced, the extension fork of the plate fork is the upper fork and the middle fork, the extension and retraction action is sliding by the cooperation of the guide groove and the guide wheel, the outermost side of the traditional plate fork is the cooperation of the upper fork guide wheel and the middle fork guide groove, and the middle fork guide groove and the lower fork guide wheel cooperate, the stability can be improved by adjusting the width of each layer of fork body guide groove and guide wheel, and the existence error of assembly and the structural stability can be reduced by integrally machining the middle fork connecting plate.

[0029] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4The driving device 1 comprises two side fixing plates 14, and the side fixing plates 14 are fixed with the bottom plate 16 through bolts, a main mounting plate 10 is fixedly installed between the two side fixing plates 14, a motor 5 is fixedly installed on one side of the main mounting plate 10, an auxiliary mounting plate 12 is fixedly installed on the other side between the two side fixing plates 14, a limiter mounting plate 15 is arranged between the auxiliary mounting plate 12, and the limiter mounting plate 15 is fixed with the main mounting plate 10 through bolts, a torque limiter 8 is fixedly installed on one side of the limiter mounting plate 15, the torque limiter 8 is used to prevent the motor from overloading, and the motor 5 is protected, a driving gear 6 is installed on an output shaft of the motor 5, and the movement of the driving gear 6 is limited through an axle end baffle 11 at the output shaft end, a pinion 7 is installed on an output shaft of the torque limiter 8, and the pinion 7 is meshed and connected with the driving gear 6, wheel shafts 13 are rotatably installed on the front and back of the upper end between the main mounting plate 10 and the auxiliary mounting plate 12, driven gears 9 are fixedly installed on the outside of the wheel shafts 13, and the driven gears 9 are respectively meshed and connected with the driving gear 6, the gear number ratio of the driving gear 6 and the pinion 7 is four to one, the output torque of the pinion 7 is reduced, and the gear number ratio of the driving gear 6 and the driven gear 9 is two to one, the torque output to the middle fork 3 is reduced.

[0030] Please refer to Figure 2 、 Figure 4 and Figure 5 , the two sides of the bottom plate 16 are fixedly installed with side plates 17, a plurality of first guide wheels 18 and friction blocks 19 are installed on the side plates 17, the first guide wheels 18 are rotatably connected with the side plates 17, and the friction blocks 19 are fixed with the side plates 17, a stop block 21 is fixedly installed on the rear side of the upper end surface of the bottom plate 16 through bolts, the stop block 21 plays a role in limiting the extension distance of the middle fork 3, long plates 31 are fixedly installed on the two sides of the bottom of the fork plate 29, the surface of the fork plate 29 is used for taking and placing goods, a plurality of second guide wheels 30 and the same friction blocks 19 as on the side plates 17 are installed on the outside of the long plates 31, the friction blocks 19 of the upper fork 4 limit the left and right displacement of the upper fork 4, four groups of symmetrical guide grooves are arranged in the inside of the connecting plate 25, two guide grooves on the outside of the connecting plate 25 slide and limit the first guide wheels 18, so that the middle fork 3 slides forward and backward, the friction blocks 19 of the lower fork 2 contact with the outside guide grooves to limit the left and right displacement, two guide grooves on the inside of the connecting plate 25 slide and limit the second guide wheels 30, the two guide grooves cooperate with the second guide wheels 30 of the upper fork 4 to ensure that the upper fork slides forward and backward, the first guide wheels 18 of the lower fork 2 cooperate with the guide grooves of the middle fork 3 on the outermost two sides, the width of the first guide wheels 18 of the lower fork 2 is increased to improve the stability of the middle fork 3, and the connecting plate 25 is integrally processed with the middle fork 3, so that the stability of the middle fork is improved.

[0031] Please refer to Figure 2 、 Figure 3 and Figure 4The rack 26 is arranged at the recess in the middle of the bottom of the connecting plate 25, the recess is left to reduce the installation space occupied by the rack 26, and the front driven gear 9 is engaged with the rack 26 to transmit power to the middle fork 3. The chain wheel shaft 28 is fixedly installed at the front end of one side of the bottom of the connecting plate 25 and the rear end of the other side of the bottom. The connecting plate 25 is directly punched with a hole, and the two ends of the chain wheel shaft 28 are fixed on both sides of the through hole of the connecting plate 25. This installation method is not only simple to process, but also can ensure the firmness and stability of the chain wheel shaft 28, thereby improving the stability of the extension fork. The chain wheel 27 is rotatably installed outside the chain wheel shaft 28, and the chain 23 is turned by the chain wheel 27 respectively. The motor 5 of the driving device 1 provides power, which is transmitted to the driven gear 9 through the driving gear 6, and the driven gear 9 is transmitted to the middle fork 3 through the rack 26 to drive it to slide. One end of the chain 23 is connected to the pull rod 22 of the lower fork 2, and the other end is fixed to the mounting block 24 of the upper fork 4. The chain 23 changes direction through the chain wheel 27, and drives the upper fork 4 to slide in the sliding process of the middle fork 3.

[0032] Please refer to Figure 6 The recess for the chain 23 is left between the upper and lower guide grooves on the inner side and the outer side of the connecting plate 25. The rack 26 is installed in the recess to reduce the thickness of the connecting plate 25 and the rack 26, thereby reducing the thickness of the extension part. In addition, the connecting plate 25 is designed with a recess to cooperate with the chain 23. The chain 23 and the recess are designed on both sides, and the rack 26 is installed in the middle. The width of the middle fork 3 is fully utilized to further reduce the thickness of the extension part of the single extension plate fork. The thickness of the extension part of the single extension plate fork of the design is only 37mm.

[0033] By optimizing the design and processing of the connecting plate 25, the thickness of the fork plate is reduced. The connecting plate 25 is determined as a single part, which is processed by whole plate processing. In addition, the guide groove and the guide wheel are redesigned. By increasing the width of the lower fork 2, the guide wheels of the lower fork 2 and the guide grooves of the middle fork 3 are distributed on the outermost two sides. By increasing the width of the middle fork 3 and the lower fork 2, the stability of the middle fork 3 is improved. In addition, the upper fork 4 is extended on the basis of the stability of the middle fork 3. By whole plate processing of the connecting plate 25 and increasing the width of the lower fork 2 to change the position of the guide groove and the guide wheel, the thickness of the middle fork 3 can be reduced, and the stability of the extension part can be improved.

[0034] It is apparent for a person skilled in the art that the present application is not restricted to the details of the above exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary only, and not limiting, the scope of the present application being defined by the appended claims rather than the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims concerned.

Claims

1. A single extension plate fork comprising a drive device (1), a lower fork (2), a middle fork (3) and an upper fork (4), characterized in that: The driving device (1) is fixed at the bottom of the lower fork (2), the main body of the middle fork (3) is a connecting plate (25), the lower fork (2), the middle fork (3) and the upper fork (4) are limited by the connecting plate (25) to slide forward and backward, and the middle fork (3) is limited to move left and right and up and down, the main body of the lower fork (2) is a bottom plate (16), the side of the front end and the other side of the rear end of the top of the bottom plate (16) are provided with adjusting supports (20), the outer part of the adjusting support (20) is fixedly provided with a pull rod (22), the main body of the upper fork (4) is a fork plate (29), the side of the front end and the other side of the rear end of the bottom of the fork plate (29) are fixedly provided with mounting blocks (24), and the pull rod (22) and the mounting block (24) are provided with a chain (23).

2. A single extension plate fork according to claim 1, characterized in that: The driving device (1) comprises two side fixed plates (14), and the side fixed plates (14) are fixedly connected with the bottom plate (16) through bolts, one side of the two side fixed plates (14) is fixedly provided with a main mounting plate (10), one side of the main mounting plate (10) is fixedly provided with a motor (5), the other side of the two side fixed plates (14) is fixedly provided with an auxiliary mounting plate (12), the auxiliary mounting plate (12) is provided with a limiter mounting plate (15), and the limiter mounting plate (15) is fixedly connected with the main mounting plate (10) through bolts, one side of the limiter mounting plate (15) is fixedly provided with a torque limiter (8), the output shaft of the motor (5) is provided with a driving gear (6), and the movement of the driving gear (6) is limited by the shaft end baffle (11) at the output shaft end, and the output shaft of the torque limiter (8) is provided with a pinion (7), and the pinion (7) is in meshing connection with the driving gear (6).

3. A single extension plate fork according to claim 2, wherein: The front and back of the upper end between the main mounting plate (10) and the auxiliary mounting plate (12) are rotatably provided with wheel shafts (13), the outer part of the wheel shaft (13) is fixedly provided with a driven gear (9), and the driven gear (9) is in meshing connection with the driving gear (6) respectively.

4. A single extension plate fork according to claim 2, wherein: The gear number ratio of the driving gear (6) and the pinion (7) is four to one, and the gear number ratio of the driving gear (6) and the driven gear (9) is two to one.

5. A single extension plate fork according to claim 3, wherein: The two sides of the bottom plate (16) are fixedly provided with side plates (17), the side plates (17) are provided with a plurality of first guide wheels (18) and friction blocks (19), the first guide wheels (18) are rotatably connected with the side plates (17), and the friction blocks (19) are fixed with the side plates (17), and the rear side of the upper end surface of the bottom plate (16) is fixedly provided with a stop block (21) through bolts.

6. A single extension plate fork according to claim 5, wherein: The two sides of the bottom of the fork plate (29) are fixedly provided with long plates (31), and the outer side of the long plate (31) is provided with a plurality of second guide wheels (30) and the same friction blocks (19) as on the side plate (17).

7. A single extension plate fork according to claim 6, wherein: The inner part of the connecting plate (25) is provided with four groups of symmetrical guide grooves, the two guide grooves on the outer side of the connecting plate (25) are limited to slide with the first guide wheels (18), and the two guide grooves on the inner side of the connecting plate (25) are limited to slide with the second guide wheels (30).

8. A single extension plate fork according to claim 7, characterized in that: The rack (26) is arranged at the recess in the middle of the bottom of the connecting plate (25), and the front driven gear (9) is engaged with the rack (26); the front end of one side of the bottom of the connecting plate (25) and the rear end of the other side of the bottom are fixedly installed with the sprocket shaft (28), the sprocket (27) is rotatably installed outside the sprocket shaft (28), and the chain (23) is turned by the sprocket (27) respectively.

9. A single extension plate fork according to claim 8, wherein: The recess for the chain is left between the upper and lower recesses between the inner guide groove and the outer guide groove on the connecting plate (25).

10. The single extension plate fork according to claim 1, wherein: The bottom plate (16) is fixed on the loading platform by bolts.

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