Carrying trolley

Abstract

The utility model discloses a carrying trolley, which relates to the technical field of vehicle manufacturing, and comprises a walking bracket, a carrying platform, a bottom layer lifting mechanism, an upper layer lifting mechanism, a control piece and a control piece, wherein the walking support comprises a bottom-layer support and an upper-layer support, a carrying platform is arranged above the upper-layer support, the carrying platform is connected with the upper-layer support through an upper-layer lifting mechanism, the upper-layer support is connected with the bottom-layer support through a bottom-layer lifting mechanism, the bottom-layer lifting mechanism can drive the upper-layer support to ascend and descend, and the upper-layer lifting mechanism can drive the carrying platform to ascend and descend. Meanwhile, the bottom layer lifting mechanism and the upper layer lifting mechanism are both electrically connected with the control piece, and the control piece is in communication connection with the control piece. According to the utility model, when an operator carries the vehicle component, the object carrying platform can be lifted to the height for loading or unloading the vehicle component only by operating the control piece, and the operator does not need to frequently lift, lift and put down the vehicle component by manpower, so that the labor intensity of the operator is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle manufacturing, in particular to a transport trolley. Background Art

[0002] During vehicle assembly operations, some vehicle parts need to be transported from designated locations to the production line for assembly operations, such as fuel tank parts. Fuel tank parts are generally sent to the production line in a centralized manner by fuel tank part transport vehicles. During this process, the fuel tank parts need to be manually transported from the fuel tank part placement rack to the fuel tank part transport vehicle. The fuel tank parts themselves have a large mass, and the fuel tank part transport vehicles place the fuel tank parts at different heights. When manual transportation operations are performed, the labor intensity is high, which can easily affect the health of the operators.

[0003] In view of this, it is necessary to propose a transport trolley to solve or at least alleviate the above technical problems. Utility Model Content

[0004] The main purpose of the utility model is to provide a transport trolley, aiming to solve the technical problem of manually transporting fuel tank components to a fuel tank component transport vehicle in the prior art, which has high labor intensity.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a transport trolley, comprising:

[0006] A walking support, the walking support comprising a bottom support and an upper support;

[0007] A bottom lifting mechanism, wherein the fixed end of the bottom lifting mechanism is connected to the bottom bracket, the movable end of the bottom lifting mechanism is connected to the upper bracket, and the bottom lifting mechanism is used to drive the upper bracket to move up and down;

[0008] An upper lifting mechanism, wherein a fixed end of the upper lifting mechanism is connected to the upper support;

[0009] A loading platform, the loading platform is installed at the movable end of the upper lifting mechanism, and the upper lifting mechanism is used to drive the loading platform to rise and fall;

[0010] A control component, the control component is installed on the walking support, and the bottom lifting mechanism and the upper lifting mechanism are both electrically connected to the control component;

[0011] A manipulation member is communicatively connected with the control member.

[0012] In one embodiment, the bottom lifting mechanism includes a first driving member and a first lifting member, the first driving member is installed on the bottom bracket, one end of the first lifting member is installed on the first driving member, and the other end is connected to the upper bracket, the first driving member is used to drive the first lifting member to move up and down, so as to drive the upper bracket to move up and down;

[0013] The upper lifting mechanism includes a second driving member and a second lifting member, the second driving member is installed on the upper bracket, one end of the second lifting member is installed on the second driving member, and the other end is connected to the loading platform, and the second driving member is used to drive the second lifting member to rise and fall, so as to drive the loading platform to rise and fall.

[0014] In one embodiment, the number of the bottom lifting mechanism and the number of the upper lifting mechanism are at least two.

[0015] In one embodiment, the first driving member includes a first driving sub-member and a first connecting frame, the first driving sub-member includes a first driving motor or a first cylinder, the first lifting member includes a first lifting rod and a first connecting claw, the first driving sub-member is mounted on the first connecting frame, the first connecting frame is detachably mounted on the bottom bracket, the first lifting rod is mounted on the first driving sub-member, the first driving sub-member drives the first lifting rod to perform lifting motion, the first connecting claw is mounted on the top of the first lifting rod, and the first connecting claw is detachably mounted on the upper bracket;

[0016] The second driving component includes a second driving sub-component and a second connecting frame, the second driving sub-component includes a second driving motor or a second cylinder, the second lifting component includes a second lifting rod and a second connecting claw, the second driving sub-component is installed on the second connecting frame, the second connecting frame is detachably installed on the upper bracket, the second lifting rod is installed on the second driving sub-component, the second driving sub-component drives the second lifting rod to perform lifting and lowering movements, the second connecting claw is installed on the top end of the second lifting rod, and the second connecting claw is detachably installed on the loading platform.

[0017] In one embodiment, the transport trolley further includes an elastic buffer sleeve, and the elastic buffer sleeve is sleeved on the outer surfaces of the first lifting member and the second lifting member.

[0018] In one embodiment, the loading platform includes a loading rack and a roller shaft, the loading rack is connected to the movable end of the upper lifting mechanism, and the roller shaft is rotatably disposed on the loading rack.

[0019] In one embodiment, the loading platform also includes two limit plates, which are parallel to the roller shaft and rotatably arranged on both sides of the loading rack, and a loading space is formed between the loading rack and the limit plates. The limit plates can be rotated on the loading rack to change the size of the loading space, and the limit plates include a self-locking structure and a flat panel, and the self-locking structure is used to lock or unlock the flat panel on the loading rack.

[0020] In one embodiment, the transport trolley further includes running wheels, which are installed at the bottom of the running frame, and the running wheels are used to support the transport trolley to walk on the ground.

[0021] In one embodiment, the bottom bracket includes a horizontal rod arranged horizontally and a vertical rod arranged vertically, the horizontal rod is used to fix the vertical rod, and the bottom end of the vertical rod is arranged close to the ground.

[0022] In one embodiment, the transport trolley further includes a push handle, which includes a push handle frame and an armrest, the push handle frame is installed on one side of the walking frame, the armrest is installed on the top of the push handle frame, and the control member is installed on the armrest.

[0023] In the technical solution of the utility model, the walking support is the base frame of the transport trolley, the walking support includes the bottom support and the upper support, the loading platform is arranged above the upper support, the bottom support and the upper support are connected through the bottom lifting mechanism, the upper support and the loading platform are connected through the upper lifting mechanism, so that the bottom lifting mechanism drives the upper support to do lifting movement, and the upper lifting mechanism drives the loading platform to do lifting movement, and at the same time, the bottom lifting mechanism and the upper lifting mechanism are both connected to the control component, the The control member is in communication connection with the control member. With this arrangement, when transporting vehicle parts, the operator operates the control member to control the bottom lifting mechanism and the upper lifting mechanism through the control member to drive the upper bracket and the loading platform to perform lifting movements, thereby lifting the loading platform to the height required for loading vehicle parts. After loading the vehicle parts onto the loading platform, the transport trolley is moved to the vicinity of the vehicle parts transport vehicle, and then the loading platform is lifted to the height required for unloading the vehicle parts onto the vehicle parts transport vehicle, thereby unloading the vehicle parts onto the vehicle parts transport vehicle. In this process, the operator does not need to frequently lift, support and put down the vehicle parts by manpower, thereby effectively reducing the operator's labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0025] Figure 1 A schematic structural diagram of an embodiment of a transport trolley provided by the utility model;

[0026] Figure 2 for Figure 1 The enlarged schematic diagram of point A in the middle;

[0027] Figure 3 for Figure 1 The enlarged schematic diagram of point B in the middle;

[0028] Figure 4 for Figure 1 Enlarged schematic diagram of point C in the middle.

[0029] Description of Figure Numbers:

[0030] 100. Transport trolley; 1. Traveling bracket; 11. Bottom bracket; 111. Horizontal rod; 112. Vertical rod; 12. Upper bracket; 2. Bottom lifting mechanism; 21. First driving member; 211. First driving sub-member; 212. First connecting frame; 22. First lifting member; 221. First lifting rod; 222. First connecting claw; 3. Upper lifting mechanism; 31. Second driving member; 311. Second driving sub-member; 312. Second connecting frame; 32. Second lifting member; 321. Second lifting rod; 322. Second connecting claw; 4. Loading platform; 41. Loading frame; 42. Roller; 5. Traveling wheel; 6. Push handle; 61. Push handle frame; 62. Handrail.

[0031] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0034] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0035] During the process of vehicle whole vehicle processing, different parts need to be assembled, such as fuel tank parts. Before the fuel tank parts are installed on the vehicle body, the fuel tank parts are usually stored on the fuel tank parts placement rack. Generally, the fuel tank parts are transported to the production line by the fuel tank parts transport vehicle to participate in the vehicle whole vehicle assembly. In the process of moving the fuel tank parts from the fuel tank parts placement rack to the fuel tank parts transport vehicle, the operator is usually required to lift the fuel tank parts from the fuel tank parts placement rack, and then lift them and place them on the fuel tank parts transport vehicle.

[0036] The applicant has observed and studied that the height of the fuel tank parts rack is different from the height of the position where the fuel tank parts are placed on the fuel tank parts transport vehicle. This results in the operator having to frequently bend over to lift the fuel tank parts, and then lift them to the required height to place the fuel tank parts into the fuel tank parts transport vehicle. In this process, the operator needs to constantly adjust the carrying posture according to the height of the fuel tank parts rack and the fuel tank parts transport vehicle. According to statistical surveys, the average weight of the fuel tank parts is 6kg / piece, and the operator needs to carry an average of 918 pieces per day. Therefore, the operator needs to carry 6kg / piece of fuel tank parts and overcome gravity 918 times per day. This is a high labor intensity for the operator, and long-term work like this is likely to damage the operator's health.

[0037] In view of this, the present invention proposes a transport trolley 100 to solve the above technical problems.

[0038] See also Figure 1In one embodiment of the utility model, the transport trolley 100 includes a walking frame 1, a bottom lifting mechanism 2, an upper lifting mechanism 3, a loading platform 4, a control component and an operating component, wherein the walking frame 1 includes a bottom frame 11 and an upper frame 12; the fixed end of the bottom lifting mechanism 2 is connected to the bottom frame 11, the movable end of the bottom lifting mechanism 2 is connected to the upper frame 12, and the bottom lifting mechanism 2 is used to drive the upper frame 12 to rise and fall; the fixed end of the upper lifting mechanism 3 is connected to the upper frame 12; the loading platform 4 is installed at the movable end of the upper lifting mechanism 3, and the upper lifting mechanism 3 is used to drive the loading platform 4 to rise and fall; the control component is installed on the walking frame 1, and the bottom lifting mechanism 2 and the upper lifting mechanism 3 are both electrically connected to the control component; the operating component is communicatively connected to the control component.

[0039] Specifically, the walking support 1 is the foundation of the transport trolley 100 as a whole, and it has sufficient rigidity; the walking support 1 includes two parts, namely, a bottom support 11 and an upper support 12, the bottom support 11 and the upper support 12 are connected through a bottom lifting mechanism 2, the fixed end of the bottom lifting mechanism 2 is installed on the bottom support 11, and its free end is connected to the upper support 12, and its free end can be lifted and lowered, so that the bottom lifting mechanism 2 can drive the upper support 12 to do lifting and lowering movements; similarly, the upper support 12 is connected to the loading platform 4 through an upper lifting mechanism 3, the fixed end of the upper lifting mechanism 3 is installed on the upper support 12, and its free end is connected to the loading platform 4, and its free end can be lifted and lowered, so that the upper lifting mechanism 3 can drive the loading platform 4 to do lifting and lowering movements. Through this arrangement, the loading platform 4 can be lifted and lowered in two stages. On the basis of the above arrangement, the bottom lifting mechanism 2 and the upper lifting mechanism 3 are electrically connected to the control element, so that the control element can control the lifting of the bottom lifting mechanism 2 and the upper lifting mechanism 3, and the bottom lifting mechanism 2 can drive the loading platform 4 to do lifting movement through the upper bracket 12, and the upper lifting mechanism 3 can directly drive the loading platform 4 to do lifting movement, so that the control element can control the loading platform 4 to do lifting; the control element is installed in the gap of the walking bracket 1, and the actual installation position is based on the standard of not affecting the lifting of the upper bracket 12 and the loading platform 4. For the convenience of operation, the control element can also be set to communicate with the control element, and the operator can operate the control element to control the control element to send a signal to the bottom lifting mechanism 2 and the upper lifting mechanism 3, so as to control the upper bracket 12 and the loading platform 4 to do lifting movement. In the above structure, the control element can be a control button or a control rocker, and the bottom lifting mechanism 2 and the upper lifting mechanism 3 include at least one of a cylinder, a screw motor or a hydraulic cylinder.

[0040] In the above embodiment, taking the transportation of fuel tank parts as an example, the working process of the transportation trolley 100 is as follows: the heights of the fuel tank parts placement racks are different, and the heights of the fuel tank parts placed on the fuel tank parts transport vehicle are also different. When transporting the fuel tank parts, the operator needs to operate the control member to lift the free end of the bottom lifting mechanism 2, and drive the loading platform 4 to lift to the height of the position where the fuel tank parts are placed on the fuel tank parts placement rack through the upper bracket 12. Since the heights of the positions where the fuel tank parts are placed on the fuel tank parts placement racks are different, the extension length of the free end of the bottom lifting mechanism 2 can be controlled to enable the loading platform 4 to be lifted to different heights to adapt to the placement height of the fuel tank parts; then The operator pushes or pulls the fuel tank parts onto the loading platform 4, then moves the transport trolley 100 loaded with the fuel tank parts to the vicinity of the fuel tank parts transport vehicle, and then operates the control member to control the bottom lifting mechanism 2 and the upper lifting mechanism 3 to drive the loading platform to move up and down. The height of the position where the fuel tank parts are placed on the fuel tank parts transport vehicle is also different, so the lifting height of the loading platform 4 can be controlled by jointly adjusting the extension length of the free ends of the bottom lifting mechanism 2 and the upper lifting mechanism 3 until the loading platform 4 is lifted to the position where the fuel tank parts are placed on the fuel tank parts transport vehicle, and finally the fuel tank parts are pushed or pulled from the loading platform 4 to the position where the fuel tank parts are placed on the fuel tank parts transport vehicle. In the above process, the bottom lifting mechanism 2 first drives the upper bracket 12 to move up and down, and after the upper bracket 12 is lifted to the highest position, the upper lifting mechanism 3 drives the loading platform 4 to move up and down, so that the loading platform 4 can perform a secondary lift.

[0041] The technical solution of the utility model is based on the bottom bracket 11 and the upper bracket 12 in the walking bracket 1, and the bottom bracket 11 and the upper bracket 12 are connected by the bottom lifting mechanism 2, and the upper bracket 12 and the loading platform 4 are connected by the upper lifting mechanism 3, so that the bottom lifting mechanism 2 can drive the upper bracket 12 to do lifting movement, and the upper lifting mechanism 3 can drive the loading platform 4 to do lifting movement, so that the loading platform 4 can perform secondary lifting, and the bottom lifting mechanism 11 and the upper lifting mechanism 12 are connected to the control part, and the control part is communicated with the operating part, so that the operator can operate the operating part to make the control part control the bottom lifting mechanism 11 and the upper lifting mechanism 12 to drive the loading platform 4 to lift. Through the above arrangement, when the operator is transporting the tank parts from the tank parts placement rack to the tank parts transport vehicle, the operator can operate the tank parts according to the work flow of the above-mentioned transport trolley 100, so that the operator does not need to lift the tank parts and carry them to the position where the tank parts are placed on the tank parts transport vehicle, and also does not need to bend over frequently to work, which greatly reduces the operator's labor intensity and reduces the damage to the operator's health.

[0042] In the technical solution provided by the utility model, the loading platform 4 can perform a two-stage lifting movement, that is, after the bottom lifting mechanism 2 lifts the upper bracket 12 to the highest height, the loading platform 4 completes the first stage of lifting. On this basis, the upper lifting mechanism 3 drives the loading platform 4 to rise until the loading platform 4 is lifted to the highest height. At this time, the loading platform 4 completes the second stage of lifting. When the loading platform 4 descends, the upper lifting mechanism 3 first drives the loading platform 4 to descend until the loading platform 4 descends to the position closest to the upper bracket 12. At this time, the first stage of descent of the loading platform 4 is completed. On this basis, the bottom lifting mechanism 2 drives the upper bracket 12 to descend, thereby driving the loading platform 4 to descend until the loading platform 4 descends to the position closest to the bottom bracket 11. At this time, the second stage of descent of the loading platform 4 is completed. Through the above-mentioned settings, the transport trolley 100 can adapt to the different position heights of the fuel tank component placement rack and the fuel tank component transport vehicle, avoiding the situation where the fuel tank components still need to be manually transported due to the insufficient lifting height of the loading platform 4.

[0043] Further, in one embodiment of the utility model, the bottom lifting mechanism 2 includes a first driving member 21 and a first lifting member 22. The first driving member 21 is installed on the bottom support 11. One end of the first lifting member 22 is installed on the first driving member 21, and the other end is connected to the upper support 12. The first driving member 21 is used to drive the first lifting member 22 to move up and down, so as to drive the upper support 12 to move up and down; the upper lifting mechanism 3 includes a second driving member 31 and a second lifting member 32. The second driving member 31 is installed on the upper support 12. One end of the second lifting member 32 is installed on the second driving member 31, and the other end is connected to the loading platform 4. The second driving member 31 is used to drive the second lifting member 32 to move up and down, so as to drive the loading platform 4 to move up and down. For details, please refer to Figure 1The walking support 1 is divided into two layers as a whole, namely, a bottom support 11 and an upper support 12. The bottom support 11 is located below the upper support 12, and the size of the bottom support 11 is larger than that of the upper support 12, that is, the accommodating cavity surrounded by the bottom support 11 can accommodate the upper support 12; the bottom lifting mechanism 2 is used to connect the bottom support 11 and the upper support 12, and the upper lifting mechanism 3 is used to connect the upper support 12 and the loading platform 4. Specifically, the bottom lifting mechanism 2 includes a first driving member 21 and a first lifting member 22, and the upper lifting mechanism 3 includes a second driving member 31 and a second lifting member 32. The first lifting member 22 and the second lifting member 32 can perform lifting and lowering movements in the first driving member 21 and the second driving member 31 respectively. The first driving member 21 is vertically installed on the bottom support 11, and the top of the first lifting member 22 is connected to the upper support 12. In this way, the connection between the bottom support 11 and the upper support 12 is completed, so that the bottom lifting mechanism 2 can drive the upper support 12 to perform lifting and lowering movements. The second driving member 31 is vertically mounted on the upper support 12 , and the top of the second lifting member 32 is connected to the loading platform 4 . The second driving member 31 drives the second lifting member 32 to perform lifting motion, which can drive the loading platform 4 to rise or fall.

[0044] In the case where the second lifting member 32 of the upper lifting mechanism 3 does not extend out of the second driving member 31 at all, the bottom lifting mechanism 2 can drive the loading platform 4 to rise and fall to a height suitable for pushing the fuel tank parts from the fuel tank parts placement rack to the loading platform 4 by adjusting the extension length of the first lifting member 22. Since the heights of the positions where the fuel tank parts are placed on the fuel tank parts placement rack are different, the height of the loading platform 4 can be adapted to the height of the fuel tank parts placement rack by adjusting the length of the first lifting member 22 extending out of the first driving member 21. Furthermore, the heights of the positions where the fuel tank parts are placed on the fuel tank parts transport vehicle are also different. Therefore, when the first lifting member 22 in the bottom lifting mechanism 2 is fully extended, if the loading platform 4 still cannot reach the height required to push the fuel tank parts to the fuel tank parts transport vehicle, the second lifting member 32 in the upper lifting mechanism 3 can be controlled to extend upward to increase the height of the loading platform 4 until the loading platform 4 is lifted to a height that can push the fuel tank parts to the fuel tank parts transport vehicle. The double-layer bracket arrangement can avoid the situation where the fuel tank parts need to be manually moved to the fuel tank parts transport vehicle due to the insufficient lifting height of the loading platform 3. In the actual design, the height that the bottom lifting mechanism 2 and the upper lifting mechanism 3 can be raised and lowered should be adapted to the height of the position where the fuel tank parts are placed on the fuel tank parts placement rack and the fuel tank parts transport vehicle in practice.

[0045] In order to improve the stability of the transport trolley 100 during operation, in one embodiment of the present invention, the number of the bottom lifting mechanism 2 and the upper lifting mechanism 3 are at least two. Figure 1In one embodiment, the number of the bottom lifting mechanism 2 and the upper lifting mechanism 3 are both four, and the bottom lifting mechanism 2 is symmetrically arranged along the cross section and the longitudinal section at the center of the bottom bracket 11, and the upper lifting mechanism 3 is symmetrically arranged along the cross section and the longitudinal section at the center of the upper bracket 12. Through the above arrangement, on the one hand, the stability of the upper bracket 12 and the loading platform 4 during the lifting movement can be improved, and the upper bracket 12 and the loading platform 4 can be prevented from overturning due to the eccentric force; on the other hand, this arrangement enables the loading platform 4 to lift heavier parts, and avoids the situation where the transport trolley 100 is difficult to lift heavy objects due to the small number of the bottom lifting mechanism 2 and the upper lifting mechanism 3.

[0046] In one embodiment of the present invention, the first driving member 21 includes a first driving sub-member 211 and a first connecting frame 212. The first driving sub-member 211 includes a first driving motor or a first cylinder. The first lifting member 22 includes a first lifting rod 221 and a first connecting claw 222. The first driving sub-member 211 is installed on the first connecting frame 212. The first connecting frame 212 is detachably installed on the bottom bracket 11. The first lifting rod 221 is installed on the first driving sub-member 211. The first driving sub-member 211 drives the first lifting rod 221 to perform lifting motion. The first connecting claw 222 is installed on the top of the first lifting rod 221, and the first connecting claw 222 is detachably installed on the upper bracket 12. For details, please refer to Figures 1 to 3 , the upper and lower ends of the first driving sub-component 211 are connected to the first connecting frame 212, and the first connecting frame 212 can be installed on the bottom bracket 11. At this time, the bottom lifting mechanism 2 is installed on the bottom bracket 11 as a whole and is stationary relative to the bottom bracket 11. On this basis, the first lifting component 22 is also divided into a first lifting rod 221 and a first connecting claw 222. The first connecting claw 222 is installed on the top of the first lifting rod 221, and the first connecting claw 222 is installed on the upper bracket 12. At this time, the bottom lifting mechanism 2 can drive the upper bracket 12 to do lifting and lowering movements. When it is necessary to adjust the position of the bottom lifting mechanism 2 or increase or decrease the number of the bottom lifting mechanism 2, the first connecting frame 212 and the first connecting claw 222 can be removed from the bottom bracket 11 and the upper bracket 12 respectively. At this time, the bottom lifting mechanism 2 is also removed as a whole. After adjusting its position or quantity according to actual conditions, the first connecting frame 212 and the first connecting claw 222 are reinstalled on the bottom bracket 11 and the upper bracket 12 respectively.

[0047] The second driving member 31 includes a second driving sub-member 311 and a second connecting frame 312. The second driving sub-member 311 includes a second driving motor or a second cylinder. The second lifting member 32 includes a second lifting rod 321 and a second connecting claw 322. The second driving sub-member 311 is installed on the second connecting frame 312. The second connecting frame 312 is detachably installed on the upper bracket 12. The second lifting rod 321 is installed on the second driving sub-member 311. The second driving sub-member 311 drives the second lifting rod 321 to move up and down. The second connecting claw 322 is installed on the top of the second lifting rod 321, and the second connecting claw 322 is detachably installed on the object loading platform 4. For details, please refer to Figure 1 , Figure 3 and Figure 4 , the second driving sub-component 311 is provided with a second connecting frame 312 at both the upper and lower ends, and the second connecting frame 312 is installed on the upper bracket 12. At this time, the upper lifting mechanism 3 is installed on the upper bracket 12 as a whole, and is relatively stationary with the upper bracket 12. On this basis, the second lifting component 32 is also divided into a second lifting rod 321 and a second connecting claw 322. The second connecting claw 322 is installed on the top of the second lifting rod 321, and the second connecting claw 322 is installed on the loading platform 4. At this time, the upper lifting mechanism 3 can drive the loading platform 4 to do lifting and lowering movements. When it is necessary to adjust the position of the upper lifting mechanism 3 or increase or decrease the number of the upper lifting mechanism 3, the second connecting frame 312 and the second connecting claw 322 can be removed from the upper bracket 12 and the loading platform 4 respectively. At this time, the upper lifting mechanism 3 is also removed as a whole. After the position or number is required according to the actual situation, the second connecting frame 312 and the second connecting claw 322 are respectively reinstalled on the upper bracket 12 and the loading platform 4.

[0048] By detachably mounting the bottom lifting mechanism 2 and the upper lifting mechanism 3 on the traveling support 1, the flexibility of the transport trolley 100 during use can be improved. On the one hand, when the position or number of the bottom lifting mechanism 3 and the upper lifting mechanism 4 needs to be changed, it is only necessary to remove them from the traveling support 1, adjust them, and then install them back on the traveling support 1. Through this arrangement, the transport trolley 100 can be installed with the bottom lifting mechanism 3 and the upper lifting mechanism 4 according to actual needs, avoiding the waste of resources caused by the redundant number of the bottom lifting mechanism 3 and the upper lifting mechanism 4, and also avoiding the situation where the transport trolley 100 is difficult to lift heavy objects due to the small number of the bottom lifting mechanism 3 and the upper lifting mechanism 4. On the other hand, this arrangement enables the transport trolley 100 to replace the use of loading platforms 4 of different sizes to meet the transportation needs of heavy objects of different sizes.

[0049] In one embodiment of the utility model, the transport trolley 100 further includes an elastic buffer sleeve (not shown in the figure), which is sleeved on the outer surface of the first lifting member 22 and the second lifting member 32. On the bottom lifting mechanism 2, the elastic buffer is sleeved on the outer surface of the first lifting member 22 and is arranged at the connection between the first lifting member 22 and the first driving member 21. On the upper lifting mechanism 3, the elastic buffer is sleeved on the outer surface of the second lifting member 32 and is arranged at the connection between the second lifting member 32 and the second driving member 31. Among them, the elastic buffer sleeve can be made of elastic rubber, silicone, plastic or composite material. Through the above arrangement, when the energy of the bottom lifting mechanism 2 or the upper lifting mechanism 3 is suddenly interrupted, the upper bracket 12 and the loading platform 4 will be buffered by the elastic buffer when descending, so as to avoid the damage of the walking bracket 1 caused by the direct descent height being too high or the oil tank parts being shaken to the ground and damaged.

[0050] In one embodiment of the present invention, the loading platform 4 includes a loading rack 41 and a roller 42. The loading rack 41 is connected to the movable end of the upper lifting mechanism 3, and the roller 42 is rotatably disposed on the loading rack 41. Figure 1 The loading platform 4 is composed of a loading frame 41 and a roller 42. The loading frame 41 serves as the frame of the loading platform 4, and plays the role of connecting the upper lifting mechanism 3 and installing the roller 42. The roller 42 includes a plurality of rollers 42, which are rotatably and parallelly arranged on the loading frame 41. In this way, the friction between the oil tank components and the loading platform 4 can be effectively reduced during the process of pushing or pushing the oil tank components out of the loading platform 4, thereby reducing the work intensity of the workers.

[0051] Furthermore, in one embodiment of the utility model, the loading platform 4 also includes two limit plates (not shown in the figure), which are parallel to the roller shaft 42 and rotatably arranged on both sides of the loading rack 41. A loading space is formed between the loading rack 41 and the limit plates. The limit plates can be rotated on the loading rack 41 to change the size of the loading space, and the limit plates include a self-locking structure and a flat panel, and the self-locking structure is used to lock or unlock the flat panel on the loading rack. Specifically, the straight line where the connection part of the limit plate and the carrier 41 is located is parallel to the roller 42. The limit plates are arranged on the two side edges of the carrier 41. The angle between the limit plate and the carrier 41 can be adjusted by rotation. When the self-locking structure locks the flat plate in the limit plate, the angle between the limit plate and the carrier 41 remains unchanged. When the self-locking structure is unlocked, the limit plate can be rotated on the carrier 41. A loading space is formed between the two limit plates and the carrier 41. When transporting the tank components, the tank components are placed in the loading space. When transporting fuel tank components, first move the transport trolley 100 to a position close to the fuel tank component placement rack. After raising and lowering the loading platform 4 to an appropriate height, lower the limit plate on the side close to the fuel tank component placement rack so that it overlaps the fuel tank component placement rack. The fuel tank components can be pushed onto the roller 42 through the limit plate on this side, and the limit plate on the other side is rotated to an appropriate position in advance according to the size of the fuel tank components and locked using a self-locking structure. After pushing the fuel tank components onto the loading platform 4, rotate the limit plate on the side close to the fuel tank component placement rack to an appropriate position and lock it using a self-locking structure. At this time, the fuel tank components are placed in the loading space. Since the roller 42 is fixed on both sides of the sliding direction with limit plates, the fuel tank components are not easy to fall off during transportation. After the transport trolley 100 loaded with fuel tank parts is moved to the vicinity of the fuel tank parts transport vehicle, the loading platform 4 is first raised and lowered to a height suitable for the fuel tank parts transport vehicle to place the fuel tank parts, and then the limit plate close to the side of the fuel tank parts transport vehicle is unlocked and opened so that it is overlapped on the fuel tank parts transport vehicle, and the fuel tank parts are pushed onto the fuel tank parts transport vehicle through the limit plate. By setting the limit plate, on the one hand, it can play a role in fixing the fuel tank parts, and on the other hand, it can serve as a passage for the fuel tank parts when the transport trolley 100 is loading or unloading the fuel tank parts, thereby reducing the risk of the fuel tank parts falling and being damaged due to the large distance between the transport trolley 100 and the fuel tank parts placement rack or the fuel tank parts transport vehicle when pushing the fuel tank parts.

[0052] In one embodiment of the present invention, the transport trolley 100 further includes a travel wheel 5 installed at the bottom of the travel support 1, and the travel wheel 5 is used to support the transport trolley 100 to travel on the ground. Figure 1The four running wheels 5 are respectively arranged at the four corners of the bottom of the bottom bracket 11, and the running wheels 5 can be universal wheels. By arranging the running wheels 5 at the bottom of the running bracket 1, the transporting trolley 100 can be moved more conveniently, reducing the difficulty of use for the user, and improving the stability of transporting the fuel tank parts.

[0053] In an embodiment of the present invention, the bottom bracket 11 includes a horizontal rod 111 arranged horizontally and a vertical rod 112 arranged vertically. The horizontal rod 111 is used to fix the vertical rod 112. The bottom end of the vertical rod 112 is arranged close to the ground. Figure 1 On the basis that the traveling frame 1 is equipped with the traveling wheel 5, the bottom end of the vertical pole 112 of the bottom bracket 11 is set close to the ground, but the bottom end of the pole 112 does not touch the ground. Among them, the horizontal rod 111 is mainly used to fix the pole 112 to increase the stability of the bottom bracket 11. The vertical distance between the bottom end of the pole 112 and the bottom end of the traveling wheel 5 is kept within less than 10 cm. In this way, when the transport trolley 100 is about to tip over due to eccentric force and the like during movement, the pole 112 can play a supporting role in time to prevent the transport trolley 100 from tipping over as a whole.

[0054] See also Figure 1 In one embodiment of the utility model, the transport trolley 100 further includes a push handle 6, which includes a push handle frame 61 and a handrail 62. The push handle frame 61 is installed on one side of the traveling support 1, the handrail 62 is installed on the top of the push handle frame 61, and the control element is installed on the handrail 62. There are two push handles 6, which are installed on the same side of the traveling support 1, and a certain distance is spaced between the two push handles 6. The push handle 6 is provided with a handrail 62, which is connected to the traveling support 1 through the push handle frame 61. The operator can control the movement of the transport trolley 100 by pushing and pulling the handrail 62; at the same time, the control element is integrated into the handrails 62 on both sides. In one embodiment, the control element integrated in the left-hand handrail 62 can control the descent of the loading platform 3, and the control element integrated in the right-hand handrail 62 can control the ascent of the loading platform 3. Through this arrangement, the operator can flexibly control the lifting and lowering of the loading platform 3 without changing the use posture, thereby improving the work efficiency of the transport work.

[0055] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A transport trolley, characterized in that: include: A walking support, the walking support comprising a bottom support and an upper support; A bottom lifting mechanism, wherein the fixed end of the bottom lifting mechanism is connected to the bottom bracket, the movable end of the bottom lifting mechanism is connected to the upper bracket, and the bottom lifting mechanism is used to drive the upper bracket to move up and down; An upper lifting mechanism, wherein a fixed end of the upper lifting mechanism is connected to the upper support; A loading platform, the loading platform is installed at the movable end of the upper lifting mechanism, and the upper lifting mechanism is used to drive the loading platform to rise and fall; A control component, the control component is installed on the walking support, and the bottom lifting mechanism and the upper lifting mechanism are both electrically connected to the control component; A manipulation member is communicatively connected with the control member.

2. The transport trolley according to claim 1, characterized in that: The bottom layer lifting mechanism comprises a first driving member and a first lifting member, wherein the first driving member is mounted on the bottom layer support, one end of the first lifting member is mounted on the first driving member, and the other end is connected to the upper layer support, and the first driving member is used to drive the first lifting member to move up and down, so as to drive the upper layer support to move up and down; The upper lifting mechanism includes a second driving member and a second lifting member, the second driving member is installed on the upper bracket, one end of the second lifting member is installed on the second driving member, and the other end is connected to the loading platform, and the second driving member is used to drive the second lifting member to rise and fall, so as to drive the loading platform to rise and fall.

3. The transport trolley according to claim 1, characterized in that: The number of the bottom lifting mechanism and the number of the upper lifting mechanism are at least two.

4. The transport trolley according to claim 2, characterized in that: The first driving member includes a first driving sub-member and a first connecting frame, the first driving sub-member includes a first driving motor or a first cylinder, the first lifting member includes a first lifting rod and a first connecting claw, the first driving sub-member is installed on the first connecting frame, the first connecting frame is detachably installed on the bottom bracket, the first lifting rod is installed on the first driving sub-member, the first driving sub-member drives the first lifting rod to perform lifting motion, the first connecting claw is installed on the top of the first lifting rod, and the first connecting claw is detachably installed on the upper bracket; The second driving component includes a second driving sub-component and a second connecting frame, the second driving sub-component includes a second driving motor or a second cylinder, the second lifting component includes a second lifting rod and a second connecting claw, the second driving sub-component is installed on the second connecting frame, the second connecting frame is detachably installed on the upper bracket, the second lifting rod is installed on the second driving sub-component, the second driving sub-component drives the second lifting rod to perform lifting and lowering movements, the second connecting claw is installed on the top end of the second lifting rod, and the second connecting claw is detachably installed on the loading platform.

5. The transport trolley according to claim 2, characterized in that: The transport trolley further includes an elastic buffer sleeve, and the elastic buffer sleeve is sleeved on the outer surfaces of the first lifting member and the second lifting member.

6. The transport trolley according to any one of claims 1 to 5, characterized in that: The loading platform comprises a loading rack and a roller shaft, wherein the loading rack is connected to the movable end of the upper lifting mechanism, and the roller shaft is rotatably arranged on the loading rack.

7. The transport trolley according to claim 6, characterized in that: The loading platform also includes two limit plates, which are parallel to the roller shaft and rotatably arranged on both sides of the loading rack. A loading space is formed between the loading rack and the limit plates. The limit plates can be rotated on the loading rack to change the size of the loading space, and the limit plates include a self-locking structure and a flat panel. The self-locking structure is used to lock or unlock the flat panel on the loading rack.

8. The transport trolley according to any one of claims 1 to 5, characterized in that: The transport trolley further comprises running wheels, which are mounted on the bottom of the running bracket and are used to support the transport trolley to walk on the ground.

9. The transport trolley according to claim 8, characterized in that: The bottom bracket includes a horizontal rod arranged horizontally and a vertical rod arranged vertically. The horizontal rod is used to fix the vertical rod. The bottom end of the vertical rod is arranged close to the ground.

10. The transport trolley according to any one of claims 1 to 5, characterized in that: The transport trolley also includes a push handle, which includes a push handle frame and an armrest. The push handle frame is installed on one side of the walking bracket, the armrest is installed on the top of the push handle frame, and the control member is installed on the armrest.

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