Mother-son type material receiving trolley
By introducing components such as tracks, mother car, daughter car, and scraper into the mother receiving car, and using a servo motor to drive the lead screw to move the connecting plate and push plate, the problem of center of gravity shift caused by material accumulation is solved, and the stability and safety of the receiving car are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-03-13
AI Technical Summary
The limited scraper travel distance in the existing mother-type receiving car causes material to accumulate at the front of the child car, and the center of gravity shifts beyond the stability limit, resulting in the child car tipping over.
Design a mother-daughter type receiving trolley, which adopts components such as rails, mother trolley, daughter trolley, scraper, servo motor, lead screw, connecting plate, and push plate. The servo motor drives the lead screw to drive the connecting plate and push plate to sort the goods in the daughter trolley and prevent the center of gravity from shifting.
This effectively prevents materials from piling up at the front of the trolley, improves the stability of the device, prevents tipping, and enhances transportation safety.
Smart Images

Figure CN223990511U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of material receiving cart technology, and in particular to a mother-daughter type material receiving cart. Background Technology
[0002] The mother car receiving trolley is a modern logistics transportation tool widely used in warehousing, factories, and construction sites. Its design philosophy aims to improve material handling efficiency, reduce labor costs, and ensure safety and stability. This type of receiving trolley consists of two parts: a main car and an auxiliary car. The main car typically contains the power system and the main load-bearing structure, while the auxiliary car can be flexibly connected to the main car to facilitate rapid loading and unloading during transportation.
[0003] Regarding the above and existing related technologies, the inventor believes that the following defects often exist: when workers transfer the goods carried by the mother car to the daughter car through the scraper, due to the limited distance the scraper can move, the material can only continuously accumulate at the front of the daughter car, causing the center of gravity of the daughter car to shift. When the center of gravity shift exceeds the stability limit of the daughter car, the daughter car will tip over. Therefore, a mother-daughter type receiving car is proposed to address the above problems. Utility Model Content
[0004] The purpose of this invention is to solve the problem in the existing technology where the scraper can only move a limited distance, and the material can only accumulate at the front of the subcarriage, causing the center of gravity of the subcarriage to shift. When the center of gravity shifts beyond the stability limit of the subcarriage, the subcarriage will tip over. Therefore, a mother-daughter type receiving car is proposed.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a mother-daughter type receiving trolley, including a track, a mother trolley mounted on the surface of the track, a daughter trolley mounted on the surface of the track, the mother trolley and the daughter trolley connected by a hook, a scraper slidably connected to the inner surface of the mother trolley, a fixing plate fixedly connected to the surface of the daughter trolley, a servo motor fixedly connected to one side of the fixing plate, a lead screw fixedly connected to the output end of the servo motor, a connecting plate threadedly connected to the arc surface of the lead screw, and a push plate fixedly connected to one side of the connecting plate.
[0006] The aforementioned components achieve the following effect: they organize the goods inside the subcart, preventing the materials from piling up at the front of the subcart due to the limited distance the scraper can travel when the workers transfer the goods from the mother car to the subcart. This causes the subcart's center of gravity to shift, and when the shift exceeds the subcart's stability limit, the subcart may tip over. This improves the stability of the device.
[0007] Preferably, a limiting groove is formed on the surface of the subcarriage, and an L-shaped plate is fixedly connected to the surface of the connecting plate, with the L-shaped plate slidably connected to the inner wall of the limiting groove.
[0008] The effect achieved by the above components is that the lead screw drives the L-shaped plate to slide on the inner wall of the limiting groove, preventing the connecting plate from rotating as the lead screw rotates.
[0009] Preferably, the push plate has beveled sides, and the size of the L-shaped plate is adapted to the size of the limiting groove.
[0010] The effect achieved by the above components is that by making the two sides of the push plate inclined, the resistance of the push plate in pushing the material back and forth can be reduced.
[0011] Preferably, the surface of the subcarriage is fixedly connected to two semicircular plates, and a long rod is fixedly connected to one side of the two semicircular plates that are close to each other. The arc surface of the long rod is rotatably connected to a mounting plate. A setting block is fixedly connected to the side of the subcarriage that is close to the semicircular plates. A limiting rod is slidably inserted into the setting block. A limiting groove is opened on one side of the mounting plate, and an elliptical plate is fixedly connected to one end of the limiting rod.
[0012] The effect achieved by the above components is as follows: the mounting plate is pulled to slide on the arc surface of the long rod, and the elliptical plate is pushed to drive the limit rod to slide in the setting block until the limit rod is inserted into the groove of the mounting plate. Since the mother car and the daughter car are connected by a hook, there will be a certain distance between them. As a result, the operator needs to hold a conveyor plate to scrape off the material, which may cause unstable falling during the scraping process.
[0013] Preferably, the arc surface of the long rod is fitted with two torsion springs, and the two ends of the torsion springs are fixedly connected to the semi-circular plate and the mounting plate, respectively.
[0014] The effect achieved by the above components is that the torsion spring drives the mounting plate to rotate on the arc surface of the long rod and automatically reset, so as to facilitate the disassembly of the subcar and the mother car.
[0015] Preferably, the arc surface of the limiting rod is fitted with a spring, and the two ends of the spring are fixedly connected to the elliptical plate and the setting block, respectively.
[0016] The effect achieved by the above components is that the torsion spring itself drives the limiting rod to slide within the setting block and automatically insert into the mounting plate groove.
[0017] Preferably, two baffles are fixedly connected to the surface of the mounting plate, and the size of the limiting rod is adapted to the size of the mounting plate groove.
[0018] The effect achieved by the above components is that by setting up baffles, materials can be prevented from falling off the edge of the mounting plate.
[0019] In summary, the beneficial effects of this utility model are as follows:
[0020] 1. In this utility model, the goods in the sub-cart are sorted out, avoiding the situation where when workers transfer the goods from the mother car to the sub-cart via a scraper, the materials can only accumulate at the front of the sub-cart due to the limited distance the scraper can move, causing the center of gravity of the sub-cart to shift. When the center of gravity shifts beyond the stability limit of the sub-cart, the sub-cart will tip over, thus improving the stability of the device. Attached Figure Description
[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0022] Figure 2 This is a schematic diagram of the structure of this utility model from another angle;
[0023] Figure 3 This is a schematic diagram of the neutron vehicle of this utility model;
[0024] Figure 4 This is a schematic diagram of the mounting plate in this utility model.
[0025] Legend: 1. Track; 2. Mother car; 3. Daughter car; 4. Scraper; 5. Fixing plate; 6. Servo motor; 7. Lead screw; 8. Connecting plate; 9. Push plate; 10. L-shaped plate; 11. Limiting groove; 12. Semicircular plate; 13. Long rod; 14. Mounting plate; 15. Setting block; 16. Limiting rod; 17. Elliptical plate; 18. Torsion spring; 19. Spring; 20. Baffle. Detailed Implementation
[0026] Reference Figure 1-4As shown, this utility model provides a technical solution: a mother-daughter type receiving trolley, including a track 1, a mother trolley 2 mounted on the surface of the track 1, a daughter trolley 3 mounted on the surface of the track 1, the mother trolley 2 and the daughter trolley 3 connected by a hook, a scraper 4 slidably connected to the inner surface of the mother trolley 2, a fixing plate 5 fixedly connected to the surface of the daughter trolley 3, a servo motor 6 fixedly connected to one side of the fixing plate 5, a lead screw 7 fixedly connected to the output end of the servo motor 6, a connecting plate 8 threadedly connected to the arc surface of the lead screw 7, and a push plate 9 fixedly connected to one side of the connecting plate 8. This achieves the effect of organizing the goods in the sub-cart 3, avoiding the situation where, when workers transfer goods from the mother car 2 to the sub-cart 3 via the scraper 4, the material can only accumulate at the front of the sub-cart 3 due to the limited movement distance of the scraper 4, causing the center of gravity of the sub-cart 3 to shift. When the center of gravity shift exceeds the stability limit of the sub-cart 3, the sub-cart 3 will tip over. This improves the stability of the device. The surface of the sub-cart 3 has a limiting groove 11, and an L-shaped plate 10 is fixedly connected to the surface of the connecting plate 8. The L-shaped plate 10 is slidably connected to the inner wall of the limiting groove 11. The lead screw 7 drives the L-shaped plate 10 to slide on the inner wall of the limiting groove 11, preventing the connecting plate 8 from rotating with the rotation of the lead screw 7. The two sides of the push plate 9 are inclined, and the size of the L-shaped plate 10 is adapted to the size of the limiting groove 11. By making the two sides of the push plate 9 inclined, the resistance of the push plate 9 in pushing the material back and forth can be reduced. Two semi-circular plates 12 are fixedly connected to the surface of the subcart 3. A long rod 13 is fixedly connected to the side of the two semi-circular plates 12 that is close to each other. The arc surface of the long rod 13 is rotatably connected to the mounting plate 14. A setting block 15 is fixedly connected to the side of the subcart 3 that is close to the semi-circular plate 12. A limiting rod 16 is slidably inserted in the setting block 15. A limiting groove 11 is opened on one side of the mounting plate 14, and an elliptical plate 17 is fixedly connected to one end of the limiting rod 16. Pulling the mounting plate 14 along the arc surface of the long rod 13 causes the elliptical plate 17 to slide the limiting rod 16 within the setting block 15 until the limiting rod 16 inserts into the groove of the mounting plate 14. Since the mother car 2 and the daughter car 3 are connected by a hook, there is a certain distance between them. Therefore, the operator needs to hold a conveyor plate to scrape off the material, which can lead to instability and material falling during the scraping process. Two torsion springs 18 are fitted on the arc surface of the long rod 13, with their ends fixedly connected to the semicircular plate 12 and the mounting plate 14, respectively. The torque of the torsion springs 18 causes the mounting plate 14 to rotate and automatically reset on the arc surface of the long rod 13, facilitating the disassembly of the daughter car 3 from the mother car 2. A spring 19 is fitted on the arc surface of the limiting rod 16, with its ends fixedly connected to the elliptical plate 17 and the setting block 15, respectively. The torsion spring 18 drives the limiting rod 16 to slide within the setting block 15 and automatically insert into the groove of the mounting plate 14. Two baffles 20 are fixedly connected to the surface of the mounting plate 14, and the size of the limiting rod 16 is adapted to the size of the groove of the mounting plate 14. The baffles 20 prevent materials from falling from the edge of the mounting plate 14.
[0027] Working principle: When the operator uses the letter-shaped receiving cart to transport fly larvae for breeding, the mother and daughter carts 2 have a detachable snap-fit structure. The mother cart 2 has a scraper 4 that scrapes the collected larvae and feed mixture into the daughter cart 3. After it is full, the daughter cart 3 separates from the mother cart 2 and moves along the track 1 to the screening bed to separate the larvae and feed. When the operator scrapes the mixture from the mother cart 2 into the daughter cart 3 using the scraper 4, the mounting plate 14 is pulled to rotate on the arc surface of the long rod 13. At this time, the mounting plate 14 is pressed against the limiting rod 16 until the sliding groove of the mounting plate 14 is aligned with the limiting rod 16. Then, the elastic force of the spring 19 drives the limiting rod 16 to slide within the setting block 15 and automatically insert into the mounting plate. Inside the 14 chute, the servo motor 6 is activated. The servo motor 6 drives the connecting plate 8 to move in the arc of the lead screw 7. The connecting plate 8 drives the L-shaped plate 10 to slide on the inner wall of the limiting groove 11. At this time, the connecting plate 8 drives the push plate 9 to push back and forth continuously in the sub-cart 3, pushing the accumulated mixture. This achieves the effect of sorting the goods in the sub-cart 3, avoiding the situation where when the staff transfers the goods carried by the mother car 2 to the sub-cart 3 through the scraper 4, the material can only accumulate at the front of the sub-cart 3 due to the limited distance that the scraper 4 can move. This causes the center of gravity of the sub-cart 3 to shift. When the center of gravity shifts beyond the stability limit of the sub-cart 3, the sub-cart 3 will tip over. This improves the stability of the device.
[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
Claims
1. A master-slave type material receiving vehicle comprising a track (1), characterized in that: The surface of the track (1) is provided with a mother car (2), the surface of the track (1) is provided with a child car (3), the mother car (2) and the child car (3) are connected through a hook, the inner surface of the mother car (2) is slidably connected with a scraper (4), the surface of the child car (3) is fixedly connected with a fixed plate (5), one side of the fixed plate (5) is fixedly connected with a servo motor (6), the output end of the servo motor (6) is fixedly connected with a lead screw (7), the arc surface of the lead screw (7) is threadedly connected with a connecting plate (8), one side of the connecting plate (8) is fixedly connected with a push plate (9).
2. The mother-daughter type material receiving vehicle according to claim 1, characterized in that: The surface of the child car (3) is provided with a limiting groove (11), the surface of the connecting plate (8) is fixedly connected with an L-shaped plate (10), and the L-shaped plate (10) is slidably connected with the inner wall of the limiting groove (11).
3. The mother-daughter material receiving vehicle according to claim 2, characterized in that: The two sides of the push plate (9) are inclined, and the size of the L-shaped plate (10) is matched with the size of the limiting groove (11).
4. The mother-daughter material receiving vehicle of claim 1, wherein: The surface of the child car (3) is fixedly connected with two semicircular plates (12), one side of the two semicircular plates (12) close to each other is fixedly connected with an elongated rod (13), the arc surface of the elongated rod (13) is rotatably connected with a mounting plate (14), one side of the child car (3) close to the semicircular plate (12) is fixedly connected with a setting block (15), the limiting rod (16) is slidably inserted into the setting block (15), and one side of the mounting plate (14) is provided with a limiting groove (11).
5. The mother-daughter material receiving vehicle according to claim 4, characterized in that: The arc surface of the elongated rod (13) is sleeved with two torsion springs (18), and the two ends of the torsion springs (18) are fixedly connected with the semicircular plates (12) and the mounting plate (14) respectively.
6. The mother-daughter material receiving vehicle of claim 4, wherein: The arc surface of the limiting rod (16) is sleeved with a spring (19), and the two ends of the spring (19) are fixedly connected with the elliptical plate (17) and the setting block (15) respectively.
7. The mother-daughter material receiving vehicle of claim 5, wherein: The surface of the mounting plate (14) is fixedly connected with two baffle plates (20), and the size of the limiting rod (16) is matched with the size of the sliding groove of the mounting plate (14).