Floating frame trolley

Abstract

The invention discloses a floating frame trolley, and relates to the technical field of trolleys, the floating frame trolley comprises a rack, the bottom of the rack is connected with a plurality of rollers, the rack is connected with a floating bag, the rack is slidably connected with two sets of sliding blocks, the two sets of sliding blocks are arranged at intervals, the top of the floating bag is connected with the rack, and the top of the floating bag is connected with the rack. The bottom of the floating bag is connected with the sliding blocks, the rack is provided with a plurality of sliding grooves, the sliding grooves correspond to the sliding blocks in a one-to-one mode, the sliding blocks slide in the sliding grooves, each sliding block is connected with a first elastic piece, and the ends, away from the sliding blocks, of the first elastic pieces are connected with the inner walls of the sliding grooves. When goods need to be taken, a worker takes the goods from top to bottom, every time when the worker takes one goods, the pressure borne by the floating bag is reduced, the first elastic piece elastically resets, the first elastic piece forces the height of the bottom of the floating bag to reset, the goods taking area of the floating bag is still located at the high position, and goods taking is convenient.

Description

Technical Field

[0001] This application relates to the technical field of handcarts, and in particular to a floating frame handcart. Background Art

[0002] In numerous fields such as logistics and transportation, and factory production, handcarts play a vital role as a simple and practical transportation tool. Their emergence has greatly improved the efficiency of goods handling, reduced labor costs, and made short-distance transportation of goods more convenient. Whether in small warehouses, factory workshops, or construction sites, handcarts can move flexibly to meet the needs of goods transportation in different environments, bringing great convenience to production and daily life.

[0003] In the past, traditional handcarts were commonly used in the industry to solve the problem of goods transportation. These handcarts typically consist of a frame, wheels, and a carrying basket, with the basket fixedly connected to the frame. Workers would first move the goods into the carrying basket, then push the frame, using the wheels to move the goods. In some logistics warehouses, workers used these handcarts to move goods from shelves to transport vehicles; in factory workshops, they were also used to transport raw materials and parts needed for production.

[0004] However, existing handcarts have significant drawbacks. Because the loading frame is fixedly connected to the chassis, workers must bend over to place goods at the bottom of the loading frame when loading them; similarly, they must bend over to retrieve goods from the bottom of the loading frame. This results in concentrated stress on the lower back, and the frequent bending over places a heavy workload on workshop workers, also affecting the efficiency of loading and unloading goods. Summary of the Invention The purpose of this application is to provide a floating frame handcart for convenient loading and unloading of goods.

[0005] This application provides a floating frame handcart with the following technical solution: it includes a frame, the bottom of which is connected to a plurality of rollers. The frame is characterized by having a floating bag connected to it, and two sets of sliders slidably connected to the frame, the two sets of sliders being spaced apart. The top of the floating bag is connected to the frame, and the bottom of the floating bag is connected to the sliders. The frame is provided with a plurality of sliding grooves, each corresponding to a slider. The slider slides within the grooves, and each slider is connected to a first elastic element, the end of which is furthest from the slider being connected to the inner wall of the groove.

[0006] By adopting the above technical solution, when loading goods into the floating bag, the bottom of the floating bag is located in the upper half of the frame, and the height of the bottom of the floating bag is relatively high, which can alleviate the problem of frequent bending over when loading goods. When goods are loaded into the floating bag, the bottom of the floating bag is subjected to force and applies force to the slider. The first elastic element is stretched and undergoes elastic deformation, maintaining a tendency to elastically return to its original position. The position of the bottom of the floating bag drops slightly, so that the loading area of ​​the floating bag is still in a relatively high position, facilitating loading. Loading refers to the bottom of the floating bag or the top of the goods inside the floating bag. As goods are stacked inside the floating bag, the bottom of the floating bag gradually decreases. When goods need to be retrieved, the staff retrieves them from top to bottom. Each time the staff retrieves a piece of goods, the pressure on the floating bag decreases, the first elastic element elastically returns to its original position, and the first elastic element forces the height of the bottom of the floating bag to return to its original position, so that the retrieval area of ​​the floating bag is still in a relatively high position, facilitating retrieval.

[0007] Optionally, the float includes a bag body, a reinforcing rod, and two connecting rods. The reinforcing rod and the two connecting rods are all connected to the bag body. The two ends of the reinforcing rod are respectively connected to two sets of sliders, and the two connecting rods are all connected to the frame.

[0008] By adopting the above technical solution, the bag body is connected to the frame via a connecting rod, keeping the top of the bag body stationary. The bag body is connected to a slider via a reinforcing rod, causing the bottom of the bag body to move as the slider moves. When the weight of the goods inside the bag increases, the bottom height of the bag body decreases; when the weight of the goods inside the bag decreases, the bottom height of the bag body increases, thus facilitating the loading and unloading of goods.

[0009] Optionally, the float bag further includes a shock absorber ring, which is connected to the top of the bag body, and the connecting rod is connected to the shock absorber ring.

[0010] By adopting the above technical solution, the anti-collision ring reduces the impact force generated when people or goods collide with the floating bag, thus protecting people or goods.

[0011] Optionally, each group of sliders includes two sliders, which are spaced apart.

[0012] By adopting the above technical solution, the two sliders in each group are connected to different positions of the float bag, so that the sliders support the float bag at more positions, thereby improving the stability of the float bag's up and down movement.

[0013] Optionally, the frame is slidably connected to two support plates, each support plate corresponding to one of the sliders. The frame is connected to a linkage component, which is used to drive the two support plates to rise and fall synchronously. The support plates abut against the sliders.

[0014] By adopting the above technical solution, during loading, the support plate abuts against the two sliders, providing support to prevent the initial load from being too heavy and causing the bottom of the bag to drop excessively, thus maintaining the height of the bag bottom and facilitating the placement of goods by workers. When the bottom of the bag is full of goods, the linkage component drives the two support plates to descend synchronously, causing the bottom of the bag to also descend under pressure. The support plates support the descent of the bag bottom, reducing the speed of descent and improving the stability of the bag bottom during descent. The uniform movement of the sliders applies a smooth and even force to the first elastic element, causing it to deform synchronously and store elastic potential energy smoothly. This minimizes internal vibration and impact, protecting the first elastic element. After descending a certain distance, the support plate stops moving, continuing to support the sliders and facilitating the loading of goods into the bag.

[0015] Optionally, the frame is rotatably connected to a linkage rod and two lead screws. One end of each of the two lead screws is connected to a first bevel gear, and both ends of the linkage rod are connected to second bevel gears. The first bevel gears and the second bevel gears correspond one-to-one and mesh with each other. The lead screws correspond one-to-one with the support plates, and the support plates are threadedly connected to the lead screws. One of the lead screws is connected to a rotating part, and the support plate abuts against the frame.

[0016] By adopting the above technical solution, the rotating part drives one of the lead screws to rotate, and the lead screw drives the linkage rod and the other lead screw to rotate through the cooperation of the first bevel gear and the second bevel gear, thereby realizing the lifting and lowering of the support plate.

[0017] Optionally, the support plate is connected to two columns at intervals on the side near the slider. Each column is provided with a cavity and each column is connected to a first airbag that communicates with the cavity. The first airbag corresponds to the slider and abuts against the slider. The support plate is connected to an air nozzle that communicates with the cavity.

[0018] By adopting the above technical solution, the first airbag prevents the support plate from directly contacting the slider. The first airbag is a soft structure, and it undergoes elastic deformation when compressed, effectively reducing damage to the support plate and the slider. When the first airbag contacts the slider, it acts as a buffer and shock absorber for the slider's descent, thus buffering and shock absorbing the descent of the goods inside the bag, greatly reducing the acceleration and impact force transmitted to the goods.

[0019] Optionally, the outer surface of the column is connected to an annular airbag, the annular airbag is connected to a plurality of connecting tubes, the connecting tubes are in communication with the annular airbag, and the end of the connecting tube away from the annular airbag is in communication with the cavity.

[0020] By adopting the above technical solution, when the goods placed inside the bag are too heavy, the first airbag undergoes elastic deformation under pressure and tends to elastically return to its original position. During the deformation process, the gas in the first airbag and its cavity enters the annular airbag through the connecting tube. The annular airbag expands under pressure, effectively preventing the first airbag from being damaged by excessive pressure and thus protecting it. When the pressure on the first airbag decreases, the first airbag and the annular airbag elastically return to their original position, and the gas in the annular airbag re-enters the first airbag through the connecting tube, thereby achieving reuse.

[0021] Optionally, the frame is connected to an alarm, a ring plate is slidably connected to the outer surface of the column, the ring plate abuts against the annular airbag, a button is connected to the column, the ring plate is used to abut against the button, the ring plate is located between the annular airbag and the button, and the alarm is electrically connected to the button.

[0022] By adopting the above technical solution, when the annular airbag inflates under pressure, it abuts against the ring plate and moves the ring plate closer to the button until the ring plate contacts the button. At this point, the alarm sounds, alerting the worker that the slider is under excessive pressure. This allows the worker to adjust the height of the slider and support plate in time via the rotating part. The elastic element also pulls the slider, reducing the pressure on it and protecting it. When the height of the slider and support plate decreases, the ring plate falls under gravity, separating from the button for easy reuse.

[0023] Optionally, a plurality of second elastic members are connected to the end of the ring plate away from the annular airbag, and the end of the second elastic member away from the annular airbag is connected to the column.

[0024] By adopting the above technical solution, when the annular airbag expands under pressure, the annular airbag applies force to the annular plate, and the second elastic element undergoes elastic deformation under pressure and maintains the tendency of elastic reset. The second elastic element plays a buffering role on the movement of the annular plate, thereby improving the stability of the movement of the annular plate.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. When goods need to be retrieved, staff retrieve them from top to bottom. Each time a staff member retrieves a piece of goods, the pressure on the float bag decreases, the first elastic element elastically resets, and the first elastic element forces the bottom of the float bag to reset its height, so that the retrieval area of ​​the float bag is still in a relatively high position, making it convenient to retrieve goods.

[0026] 2. When loading goods, the support plate abuts against the two sliders, providing support to prevent the initial load from being too heavy and causing the bottom of the bag to drop excessively. This maintains the height of the bag's bottom, making it easier for workers to place the goods inside. When the bottom of the bag is full, the linkage assembly drives the two support plates to descend synchronously. The bottom of the bag also descends under pressure, and the support plates further support this descent, reducing the speed of descent and improving the stability of the bag's descent. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application.

[0028] Figure 2 This is a cross-sectional view of Embodiment 1 of this application.

[0029] Figure 3 yes Figure 2 An enlarged view of region A.

[0030] Figure 4 This is a schematic diagram of the overall structure of Embodiment 2 of this application.

[0031] Figure 5 This is a cross-sectional view of Embodiment 2 of this application.

[0032] Figure 6 yes Figure 5 A magnified view of region B.

[0033] Explanation of reference numerals in the attached drawings: 1. Frame; 11. Base plate; 12. Column; 121. Slide groove; 13. Roller; 14. Reinforcing plate; 2. Floating bag; 21. Bag body; 22. Anti-collision ring; 23. Reinforcing rod; 24. Connecting rod; 3. Sliding block; 4. First elastic element; 5. Support plate; 51. Column; 511. Cavity; 52. Outer shell; 521. Annular cavity; 53. First airbag; 54. Air nozzle; 55. Annular airbag; 551. Connecting pipe; 56. Ring plate; 57. Button; 58. Second elastic element; 6. Linkage assembly; 61. Linkage rod; 62. Lead screw; 621. Rotating part; 63. First bevel gear; 64. Second bevel gear. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1 - Appendix Figure 6 This application will be described in further detail.

[0035] This application discloses a floating frame handcart.

[0036] like Figure 1As shown, the device includes a frame 1 and a floating bag 2. The frame 1 includes a base plate 11 and four uprights 12 hinged to the base plate 11. Each upright 12 is fixedly connected to the base plate 11 by a first bolt. Loosening the first bolt allows the upright 12 to rotate, thereby achieving storage. Several rollers 13 are fixedly connected to the side of the base plate 11 away from the uprights 12. Taking this embodiment as an example, the number of rollers 13 is four, and the rollers 13 are self-locking omnidirectional wheels.

[0037] Combination Figure 1 , Figure 2 and Figure 3 As shown, the float bag 2 is an accordion canvas bag. The float bag 2 includes a bag body 21, a shock absorber ring 22, two reinforcing rods 23, and two connecting rods 24. The two connecting rods 24 are fixedly connected to the bag body 21 and located above it. The two connecting rods 24 are fixedly connected to opposite sides of the bag body 21. One connecting rod 24 corresponds to two uprights 12, and both connecting rods 24 and uprights 12 are fixedly connected by second bolts. The shock absorber ring 22 is fixedly connected to the top of the bag body 21 and is annular. The connecting rods 24 are fixedly connected to the lower surface of the shock absorber ring 22. The reinforcing rods 23 are fixedly connected to the bottom of the bag body 21, and the two reinforcing rods 23 are spaced apart. The frame 1 has two sets of sliding blocks 3 connected by a sliding connection. Each set of sliding blocks 3 has two blocks 3, which are spaced apart. The blocks 3 correspond one-to-one with the columns 12. Each column 12 has a sliding groove 121. The blocks 3 slide within the sliding groove 121. The blocks 3 are L-shaped, with part of the blocks 3 protruding from the sliding groove 121. A reinforcing rod 23 corresponds to two blocks 3, and the reinforcing rod 23 is fixedly connected to the blocks 3 by a third bolt. Each block 3 is connected to a first elastic element 4, which is a tension spring. One end of the first elastic element 4 is fixedly connected to one side of the block 3, and the other end is fixedly connected to the inner wall of the sliding groove 121 away from the base plate 11.

[0038] The implementation principle of a floating frame handcart in this application embodiment is as follows: When loading goods into the float bag 2, the bottom of the float bag 2 is located in the upper half of the frame 1. The higher height of the bottom of the float bag 2 reduces the need for frequent bending over during loading. When goods are loaded into the float bag 2, the bottom of the float bag 2 is subjected to force, which is applied to the slider 3. The first elastic element 4 is stretched and undergoes elastic deformation, maintaining a tendency to elastically return to its original position. The bottom of the float bag 2 lowers slightly, ensuring that the loading area of ​​the float bag 2 remains at a higher height for easy loading. As goods are stacked inside the float bag 2, the bottom of the float bag 2 gradually decreases. When goods need to be retrieved, the worker retrieves them from top to bottom. Each time a worker retrieves a piece of goods, the pressure on the float bag 2 decreases, the first elastic element 4 elastically returns to its original position, and the first elastic element 4 forces the bottom of the float bag 2 to return to its original height, ensuring that the retrieval area of ​​the float bag 2 remains at a higher height for easy retrieval.

[0039] Example 2 The difference between this embodiment and embodiment 1 is that, Figure 4 As shown, the column 12 is fixedly connected to the base plate 11. Every two columns 12 form a group. Each group of columns 12 is connected to a reinforcing plate 14. The two ends of the reinforcing plate 14 are fixedly connected to two columns 12 in each group. The setting of the reinforcing plate 14 improves the stability of the column 12. The two groups of columns 12 are located between the two reinforcing plates 14. Each set of columns 12 is slidably connected to a support plate 5. The support plate 5 is T-shaped and located below the two sliders 3. The frame 1 is connected to a linkage assembly 6. The linkage assembly 6 drives the two support plates 5 to slide synchronously. The linkage assembly 6 includes a linkage rod 61 rotatably connected to the base plate 11 and a lead screw 62 rotatably connected to each reinforcing plate 14. The lower end of each lead screw 62 is fixedly connected to a first bevel gear 63. The two ends of the linkage rod 61 are fixedly connected to second bevel gears 64. The first bevel gear 63 and the second bevel gear 64 correspond one-to-one and mesh with each other. The lead screw 62 corresponds one-to-one with the support plate 5 and is threadedly connected to the support plate 5. One side of the support plate 5 simultaneously abuts against the two columns 12. One end of one of the lead screws 62 is fixedly connected to a rotating part 621.

[0040] Combination Figure 4 , Figure 5 and Figure 6 As shown, two columns 51 are fixedly connected to the side of the support plate 5 near the slider 3. The two columns 51 are spaced apart, and each column 51 corresponds to a slider 3. A cavity 511 is formed on the upper surface of each column 51. A shell 52 is fixedly connected to each column 51. A first airbag 53 communicating with the cavity 511 is fixedly connected to the shell 52. The first airbag 53 covers the cavity 511. The side of the first airbag 53 away from the support plate 5 abuts against the slider 3. An air nozzle 54 is fixedly connected to the support plate 5, and the air nozzle 54 communicates with the cavity 511. An annular cavity 521 is formed in the shell 521. An annular airbag 55 is fixedly connected inside the annular cavity 521. The annular airbag 55 surrounds the column 51. Several connecting tubes 551 are fixedly connected to the inner ring of the annular airbag 55. Each connecting tube 551 is fixedly connected to the column 51 and communicates with the cavity 511. A ring plate 56 is slidably connected within the annular cavity 521. The ring plate 56 is located above the annular airbag 55 and abuts against the annular airbag 55. The ring plate 56 surrounds the column 51, and a button 57 is fixedly connected to the column 51. The button 57 is located above the ring plate 56. When the annular airbag 55 is compressed and inflated, the annular airbag 55 drives the ring plate 56 to move, causing the ring plate 56 to abut against the button 57. An alarm (not shown in the attached diagram) is connected to the frame 1. The button 57 is electrically connected to the alarm. When the ring plate 56 abuts against the button 57, the alarm sounds. Several second elastic elements 58, which are springs, are fixedly connected to the side of the ring plate 56 away from the annular airbag 55. The end of the second elastic element 58 away from the ring plate 56 is fixedly connected to the inner wall of the annular cavity 521.

[0041] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A floating frame handcart, comprising a frame (1), wherein a plurality of rollers (13) are connected to the bottom of the frame (1), characterized in that: The frame (1) is connected to a float (2), and the frame (1) is slidably connected to two sets of sliders (3). The two sets of sliders (3) are spaced apart. The top of the float (2) is connected to the frame (1), and the bottom of the float (2) is connected to the slider (3). The frame (1) is provided with a number of sliding grooves (121). The sliding grooves (121) correspond one-to-one with the sliders (3). The sliders (3) slide in the sliding grooves (121). Each slider (3) is connected to a first elastic element (4). The end of the first elastic element (4) away from the slider (3) is connected to the inner wall of the sliding groove (121).

2. The floating frame handcart according to claim 1, characterized in that: The floating bag (2) includes a bag body (21), a reinforcing rod (23) and two connecting rods (24). The reinforcing rod (23) and the two connecting rods (24) are connected to the bag body (21). The two ends of the reinforcing rod (23) are respectively connected to two sets of sliders (3), and the two connecting rods (24) are connected to the frame (1).

3. The floating frame handcart according to claim 2, characterized in that: The floating bag (2) also includes a shock absorber ring (22), which is connected to the top of the bag body (21), and the connecting rod (24) is connected to the shock absorber ring (22).

4. The floating frame handcart according to claim 1, characterized in that: Each set of sliders (3) includes two sliders (3) spaced apart.

5. The floating frame handcart according to claim 1, characterized in that: The frame (1) is slidably connected to two support plates (5), and the support plates (5) correspond one-to-one with each set of sliders (3). The frame (1) is connected to a linkage component (6), which is used to drive the two support plates (5) to rise and fall synchronously. The support plates (5) abut against the sliders (3).

6. The floating frame handcart according to claim 5, characterized in that: The frame (1) is rotatably connected to a linkage rod (61) and two lead screws (62). One end of each lead screw (62) is connected to a first bevel gear (63), and both ends of the linkage rod (61) are connected to second bevel gears (64). The first bevel gear (63) and the second bevel gear (64) correspond one-to-one and mesh with each other. The lead screw (62) corresponds one-to-one with the support plate (5), and the support plate (5) is threadedly connected to the lead screw (62). One of the lead screws (62) is connected to a rotating part (621), and the support plate (5) abuts against the frame (1).

7. The floating frame handcart according to claim 5, characterized in that: The support plate (5) has two columns (51) connected at intervals on the side near the slider (3). Each column (51) is provided with a cavity (511). Each column (51) is connected to a first airbag (53) that communicates with the cavity (511). The first airbag (53) corresponds to the slider (3) one by one and abuts against the slider (3). The support plate (5) is connected to an air nozzle (54) that communicates with the cavity (511).

8. The floating frame handcart according to claim 7, characterized in that: The outer surface of the column (51) is connected to an annular airbag (55), and the annular airbag (55) is connected to a plurality of connecting tubes (551). The connecting tubes (551) are connected to the annular airbag (55), and the end of the connecting tube (551) away from the annular airbag (55) is connected to the cavity (511).

9. The floating frame handcart according to claim 8, characterized in that: The frame (1) is connected to an alarm. The outer surface of the column (51) is slidably connected to a ring plate (56). The ring plate (56) abuts against the annular airbag (55). The column (51) is connected to a button (57). The ring plate (56) is used to abut against the button (57). The ring plate (56) is located between the annular airbag (55) and the button (57). The alarm is electrically connected to the button (57).

10. The floating frame handcart according to claim 9, characterized in that: The end of the ring plate (56) away from the annular airbag (55) is connected to a plurality of second elastic elements (58), and the end of the second elastic element (58) away from the annular airbag (55) is connected to the column (51).

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