A mother-and-child vehicle with an anti-displacement function

By setting up anti-displacement devices and wireless signal transmission equipment on the mother car, safety accidents caused by the displacement of the mold table during use of the mother car are solved, and the limit of the mold table and the locking of the mother car are realized, which improves safety and stability.

CN115489953BActive Publication Date: 2025-07-08BEIJING GOOD FORTUNE INNOVATIVE INTELLIGENCE TECH CO LTD
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Patent Information

Application Number
CN202211078622.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-09-05
Publication Date
2025-07-08
Estimated Expiration
2042-09-05

AI Technical Summary

Technical Problem

When using the mother and child truck, safety accidents caused by displacement of the mold stage.

Method used

The anti-displacement device is provided at the ends of the mother car, including an L-shaped block, a stop block and a lifting electric push rod. Through wireless signal transmission equipment and position detection sensors, the driving component is used to drive the rotation shaft to make the positioning member and the mating member engaging, realizing the limit and locking of the mold stage.

Benefits of technology

Effectively prevent the displacement of the mold stage, improve safety, reduce the probability of stopping damage, avoid the phenomenon of mother trucks, and enhance safety during transportation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention belongs to the field of production and transportation equipment, and relates to a mother-daughter vehicle with an anti-displacement function, including a mother vehicle, a daughter vehicle and two tracks. Wireless signal transmission devices are provided on both the mother vehicle and the daughter vehicle. Bases are fixed at both the head and the tail ends of the mother vehicle, a vertical frame is provided on the base, and an anti-displacement device is provided on the vertical frame. The present invention can avoid the displacement of the mold table located on the daughter vehicle through the anti-displacement device, greatly improving the safety.
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Description

Technical Field

[0001] The present invention relates to the field of production and transportation equipment, and particularly to a mother - son vehicle with an anti - displacement function. Background Art

[0002] As a transportation device, the mother - son vehicle has the advantages of being flexible, easy to use, energy - saving and environmental - friendly. The wide application of the mother - son vehicle can better promote the process of automated production. For example, in the production process of small concrete precast parts, usually after the mother vehicle transports the mother - son vehicle to a predetermined position, the son vehicle enters the kiln to work. Most of the time, the son vehicle is located on the mother vehicle. At present, there are still some potential safety hazards in the use of the mother - son vehicle: all small concrete precast parts are placed on the mold table of the son vehicle, and the son vehicle moves synchronously with the mother vehicle. Once the mother vehicle stops, the mold table is likely to move forward and backward due to inertia, which is likely to cause the mold table to collapse and result in safety accidents. Summary of the Invention

[0003] The technical problem to be solved by the present invention is: to solve the problem of safety accidents caused by the displacement of the mold table when the mother - son vehicle is in use.

[0004] The present invention provides a mother - son vehicle with an anti - displacement function, which includes a mother vehicle, a son vehicle arranged on the mother vehicle, and two tracks for the mother vehicle to move. Wireless signal transmission devices are provided on both the mother vehicle and the son vehicle. Bases are fixed at both the head and the tail ends of the mother vehicle. An upright frame is provided on the base, and an anti - displacement device for preventing the mold table from displacing is provided on the upright frame; anti - displacement devices are arranged at both the head and the tail ends of the mother vehicle to limit the mold table on the son vehicle and prevent the mold table from moving.

[0005] In some embodiments, the anti - displacement device includes two L - shaped blocks, a stop block and a lifting electric push rod. A first horizontal plate is provided at one end of the upright frame away from the son vehicle. A first hinge seat is provided at the top of the first horizontal plate. A second horizontal plate is installed at the top of the stop block. A second hinge seat is provided at the bottom of the second horizontal plate, and the second hinge seat is directly below the first hinge seat. The two L - shaped blocks are symmetrically arranged on the upright frame. The two L - shaped blocks are located between the first hinge seat and the second hinge seat. A sliding groove for sliding - fitting with the stop block and an avoidance groove for avoiding the second horizontal plate are formed between the two L - shaped blocks. The tail end of the lifting electric push rod is hinged to the first hinge seat, and the output end of the lifting electric push rod is hinged to the second hinge seat; after the stop block moves upward, it can block the mold table, and the two stop blocks respectively limit the head and the tail ends of the mold table to prevent the mold table from moving, thereby improving safety.

[0006] In some embodiments, an inner groove and a buffer block slidably engaged with the inner groove are provided at one end of the stop block facing the sub-vehicle. A plurality of buffer springs are provided in the inner groove, and the buffer springs are fixedly connected to the back of the buffer block. An outer chamfer is provided at the bottom of the buffer block; the buffer springs are used to provide a buffering force, reducing the probability of damage to the stop block.

[0007] In some embodiments, a protective cover for protecting the lifting electric push rod is provided on the vertical frame.

[0008] In some embodiments, a suspension plate is provided at the bottom of the mother vehicle. An avoidance window is formed on the suspension plate. Rotating seats are provided on both sides of the avoidance window. A rotating shaft is rotatably provided on the two rotating seats. A positioning member is installed on the rotating shaft. A driving assembly for driving the rotating shaft to rotate is provided on the top of the suspension plate. A fixing plate is provided in the avoidance window. A position detection sensor arranged vertically is provided on the fixing plate. An installation plate is provided between the two tracks. A fitting member that is in positioning and engaging cooperation with the positioning member and a detection member that is in cooperation with the position detection sensor are provided on the installation plate; a position detection sensor is provided at the bottom of the mother vehicle. The displacement of the detection member between the two tracks is detected by the position detection sensor. The rotating shaft is driven to rotate by the driving assembly so that the positioning member rotates. The cooperation between the positioning member and the fitting member can lock the entire mother vehicle.

[0009] In some embodiments, the driving assembly is a cylinder. A connecting shaft is installed at the output end of the cylinder. A third hinge seat is provided on the top of the suspension plate. Two symmetrically arranged eccentric plates are provided in the middle of the rotating shaft. The tail end of the cylinder is hinged to the third hinge seat. The connecting shaft is located between the two eccentric plates and is rotatably connected to the two eccentric plates; the cylinder can drive the eccentric plate to move, and the eccentric plate can drive the rotating shaft to rotate.

[0010] In some embodiments, a synchronous rotating piece is provided at one end of the rotating shaft. Two infrared sensors that are symmetrically arranged on both sides of one end of the rotating shaft and are used to detect the position of the synchronous rotating piece are provided on the top of the suspension plate; this can control the rotation angle of the eccentric plate.

[0011] In some embodiments, the positioning member includes two positioning insertion rods, and the fitting member includes a first bottom block and two second bottom blocks. The two positioning insertion rods are respectively located on both sides of the two eccentric plates. One end of the positioning insertion rod is fixedly connected to the rotating shaft. The first bottom block is arranged in the middle of the installation plate. The two second bottom blocks are symmetrically arranged on both sides of the first bottom block. A positioning slot for positioning and plugging cooperation with the other end of the positioning insertion rod is formed between the first bottom block and the second bottom blocks; after the rotating shaft rotates, it can drive the positioning insertion rod to rotate synchronously. When the positioning insertion rod rotates into the positioning slot, the mother vehicle is locked.

[0012] In some embodiments, guiding chamfers are provided on both the first bottom block and the second bottom block, which improves the smoothness of the positioning plug rod entering the positioning slot.

[0013] In some embodiments, the positioning member includes two positioning plates, the cooperating member includes a vertical shaft and a positioning wheel. A clamping groove for clamping and cooperating with the positioning wheel is provided on the inner side of the positioning plate. A bearing coaxial with it is provided in the middle of the positioning wheel. The two positioning plates are symmetrically arranged on the rotating shaft, and two eccentric plates are located between the two positioning plates. The vertical shaft is arranged on the top of the mounting plate, and the positioning wheel is rotatably arranged on the vertical shaft through the bearing. After the rotating shaft rotates, it can drive the two positioning plates to rotate synchronously, and the clamping groove on the positioning plate can be clamped on the side end of the positioning wheel, so as to achieve the purpose of locking the mother vehicle.

[0014] The beneficial effects of the present invention are as follows:

[0015] First, for the mother-and-son vehicle with an anti-displacement function of the present invention, two anti-displacement devices are added to the mother vehicle. The two anti-displacement devices can prevent the mold table on the son vehicle from moving, improving safety.

[0016] Second, for the mother-and-son vehicle with an anti-displacement function of the present invention, the lifting electric push rod can make the stop block protrude from the sliding groove, and the stop block can be used to block the mold table on the son vehicle.

[0017] Third, for the mother-and-son vehicle with an anti-displacement function of the present invention, a buffer block and a buffer spring are provided on the stop block, so that the stop block has a buffering effect, reducing the probability of damage to the stop block and the module.

[0018] Fourth, for the mother-and-son vehicle with an anti-displacement function of the present invention, driving the rotating shaft to rotate through the driving component can make the positioning member and the cooperating member engage, so as to lock the mother vehicle, avoiding the phenomenon that the mother vehicle is prone to crosstalk during transportation and improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for describing the present invention or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 Schematic three-dimensional structure of the mother-and-son vehicle with an anti-displacement function of the present invention Figure 1 ;

[0021] Figure 2 Schematic three-dimensional structure of the mother-and-son vehicle with an anti-displacement function of the present invention Figure 2 ;

[0022] Figure 3 Schematic structural diagram of the anti-displacement device;

[0023] Figure 4 Partial schematic diagram of the anti-displacement device;

[0024] Figure 5 Partial sectional view of the anti-displacement device;

[0025] Figure 6 Schematic structural diagram of the driving assembly, positioning member and mating member;

[0026] Figure 7 Schematic structural diagram of the first embodiment of the positioning member and the mating member;

[0027] Figure 8 Schematic structural diagram of the second embodiment of the positioning member and the mating member.

[0028] Reference numerals: 1, mother vehicle; 11, base; 12, vertical frame; 121, first horizontal plate; 122, first hinge seat; 123, protective cover; 13, suspension plate; 131, avoidance window; 132, rotating seat; 133, rotating shaft; 134, third hinge seat; 135, synchronous rotating piece; 136, infrared sensor; 137, eccentric plate; 14, fixing plate; 141, position detection sensor; 2, sub-vehicle; 3, track; 31, mounting plate; 4, wireless signal transmission device; 5, anti-displacement device; 51, L-shaped block; 52, stop block; 521, second horizontal plate; 522, inner groove; 523, buffer block; 524, buffer spring; 525, outer chamfer; 526, second hinge seat; 527, chute; 528, avoidance groove; 53, lifting electric push rod; 6, positioning member; 61, positioning insertion rod; 62, positioning plate; 621, clamping groove; 7, mating member; 71, first bottom block; 72, second bottom block; 73, positioning slot; 74, guiding chamfer; 75, vertical shaft; 76, positioning wheel; 761, bearing; 8, detecting member; 9, cylinder; 10, connecting shaft. Detailed implementation manners

[0029] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments.

[0030] In this embodiment, as Figures 1 to 8As shown in the figure, a mother-daughter vehicle with an anti-displacement function includes a mother vehicle 1, a daughter vehicle 2 arranged on the mother vehicle 1, and two tracks 3 for the mother vehicle 1 to move. Wireless signal transmission devices 4 are provided on both the mother vehicle 1 and the daughter vehicle 2. Currently, traditional signal transmission devices have wiring, and these wirings are prone to entanglement, so there are certain safety hazards. Therefore, wireless signal transmission devices 4 are adopted to avoid the safety hazards caused by the entanglement of the wiring. Base plates 11 are fixed at both the head and the tail ends of the mother vehicle 1. An upright frame 12 is provided on the base plate 11, and an anti-displacement device 5 for preventing the mold table from shifting is provided on the upright frame 12.

[0031] Preferably, if the top surface of the upright frame 12 is higher than the top of the daughter vehicle 2, the two ends of the mold table will be blocked by the upright frame 12 instead of the anti-displacement device 5. The top surface of the upright frame 12 can be set to be lower than the top surface of the daughter vehicle 2.

[0032] When the mother vehicle 1 travels on the two tracks 3, the movement of the mold table of the daughter vehicle 2 is prevented by relying on the two anti-displacement devices 5. The anti-displacement device 5 includes two L-shaped blocks 51, a stop block 52, and a lifting electric push rod 53. One end of the upright frame 12 away from the daughter vehicle 2 is provided with a first horizontal plate 121. A first hinge seat 122 is provided on the top of the first horizontal plate 121. A second horizontal plate 521 is installed on the top of the stop block 52. A second hinge seat 526 is provided at the bottom of the second horizontal plate 521. The second hinge seat 526 is directly below the first hinge seat 122. The two L-shaped blocks 51 are symmetrically arranged on the upright frame 12. The two L-shaped blocks 51 are located between the first hinge seat 122 and the second hinge seat 526. A sliding groove 527 for slidingly matching with the stop block 52 and an avoidance groove 528 for avoiding the second horizontal plate 521 are formed between the two L-shaped blocks 51. The tail end of the lifting electric push rod 53 is hinged to the first hinge seat 122, and the output end of the lifting electric push rod 53 is hinged to the second hinge seat 526. In order to avoid accidental collision and damage to the lifting electric push rod 53, a protective cover 123 for protecting the lifting electric push rod 53 is provided on the upright frame 12. The stop block 52 is driven by the lifting electric push rod 53 to move upward in the sliding groove 527, and the stop block 52 can gradually protrude from the sliding groove 527, so that the stop block 52 can block the mold table, that is, the purpose of preventing displacement is achieved, and the safety is improved.

[0033] Preferably, an inner groove 522 and a buffer block 523 slidably engaged with the inner groove 522 are provided at one end of the stop block 52 facing the sub-vehicle 2. A number of buffer springs 524 are provided in the inner groove 522. The buffer springs 524 are fixedly connected to the back of the buffer block 523. The buffer springs 524 are used to provide a buffer force to reduce the probability of damage to the stop block 52. In order to facilitate the buffer block 523 to retract into the inner groove 522, an external chamfer 525 is provided at the bottom of the buffer block 523. The external chamfer 525 guides the buffer block 523 to retract into the inner groove 522 when the stop block 52 moves downward in the sliding groove 527.

[0034] As a further preference, a buffer layer, such as a rubber layer, can also be provided on the stop block 52 and the buffer block 523, which also reduces the probability of damage to the stop block 52, the buffer block 523 and the die table.

[0035] During the transfer process, since the mother vehicle 1 has no locking device, the mother vehicle 1 may move around, which is likely to cause safety accidents. Therefore, a suspension plate 13 is provided at the bottom of the mother vehicle 1. An avoidance window 131 is provided on the suspension plate 13. Rotating seats 132 are provided on both sides of the avoidance window 131. A rotating shaft 133 is rotatably provided on the two rotating seats 132. A positioning member 6 is installed on the rotating shaft 133. A driving assembly for driving the rotating shaft 133 to rotate is provided at the top of the suspension plate 13. A fixing plate 14 is provided in the avoidance window 131. A position detection sensor 141 arranged vertically is provided on the fixing plate 14. An installation plate 31 is provided between the two rails 3. A fitting member 7 that is engaged with the positioning member 6 in a positioning manner and a detection member 8 that is matched with the position detection sensor 141 are provided on the installation plate 31. The position detection sensor 141 and the detection member 8 are used to detect whether the position of the mother vehicle 1 traveling on the two rails 3 reaches a specified position. The mother vehicle 1 drives the rotating shaft 133 to rotate through the driving assembly so that the positioning member 6 can be positioned on the fitting member 7, that is, the locking purpose is achieved, and the mother vehicle 1 is prevented from moving around during the transfer process and causing safety accidents.

[0036] During the locking process, the driving assembly is the main driving force. The driving assembly can adopt an electric push rod, an oil cylinder or a cylinder 9, and preferably a cylinder 9. A connecting shaft 10 is installed at the output end of the cylinder 9. A third hinge seat 134 is provided at the top of the suspension plate 13. Two symmetrically arranged eccentric plates 137 are provided in the middle of the rotating shaft 133. The tail end of the cylinder 9 is hinged to the third hinge seat 134. The connecting shaft 10 is located between the two eccentric plates 137 and is rotatably connected to the two eccentric plates 137. The cylinder 9 drives the eccentric plate 137 to move, and the eccentric plate 137 can drive the rotating shaft 133 to rotate. The rotation angle is neither too small nor too large, otherwise the effects of the positioning member 6 and the mating member 7 cannot reach the ideal state. Therefore, a synchronous rotating piece 135 is provided at one end of the rotating shaft 133. Two infrared sensors 136 are symmetrically arranged on both sides of one end of the rotating shaft 133 at the top of the suspension plate 13. When the cylinder 9 is not working, the synchronous rotating piece 135 blocks the emitting end of the infrared sensor 136 close to the cylinder 9. After the cylinder 9 works, the rotating shaft 133 will rotate self, and the synchronous rotating piece 135 rotates synchronously around the axis of the rotating shaft 133. The synchronous rotating piece 135 disengages from the emitting end of the infrared sensor 136. When the synchronous rotating piece 135 blocks the emitting end of the next infrared sensor 136, the cylinder 9 immediately stops, that is, the rotation angle of the rotating shaft 133 is controlled.

[0037] Two embodiments are provided for the positioning member 6 and the mating member 7, and both embodiments can realize the locking of the mother vehicle 1.

[0038] In the first embodiment, the positioning member 6 includes two positioning insertion rods 61, the mating member 7 includes a first bottom block 71 and two second bottom blocks 72. The two positioning insertion rods 61 are respectively located on both sides of the two eccentric plates 137. One end of the positioning insertion rod 61 is fixedly connected to the rotating shaft 133. The first bottom block 71 is arranged in the middle of the mounting plate 31. The two second bottom blocks 72 are symmetrically arranged on both sides of the first bottom block 71. A positioning slot 73 for positioning and plugging cooperation with the other end of the positioning insertion rod 61 is formed between the first bottom block 71 and the second bottom block 72. After the rotating shaft 133 rotates, the two positioning insertion rods 61 also rotate synchronously around the axis of the rotating shaft 133. During the rotation process, the positioning insertion rods 61 can gradually enter the corresponding positioning slots 73. In order to improve the smoothness of the positioning insertion rods 61 inserted into the positioning slots 73, guiding chamfers 74 are provided on both the first bottom block 71 and the second bottom block 72 for guidance.

[0039] Second Embodiment: The positioning member 6 includes two positioning plates 62, and the mating member 7 includes a vertical shaft 75 and a positioning wheel 76. An engaging groove 621 for snap-fitting with the positioning wheel 76 is provided on the inner side of the positioning plate 62. A bearing 761 coaxial with it is provided in the middle of the positioning wheel 76. The two positioning plates 62 are symmetrically arranged on the rotating shaft 133, and the two eccentric plates 137 are located between the two positioning plates 62. The vertical shaft 75 is arranged at the top of the mounting plate 31, and the positioning wheel 76 is rotatably arranged on the vertical shaft 75 through the bearing 761. After the rotating shaft 133 rotates, the two positioning plates 62 also rotate synchronously around the axis of the rotating shaft 133. Subsequently, the engaging groove 621 on the positioning plate 62 can be snap-fitted on the side end of the positioning wheel 76. The two positioning plates 62 limit the forward and backward movement of the mother vehicle 1 by using the positioning wheel 76, that is, the mother vehicle 1 is locked.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A mother-and-son vehicle with an anti-shift function, comprising a mother vehicle (1), a son vehicle (2) arranged on the mother vehicle (1), and two tracks (3) for the mother vehicle (1) to move, characterized in that, Both the mother vehicle (1) and the child vehicle (2) are provided with wireless signal transmission devices (4). At both the head and tail ends of the mother vehicle (1), bases (11) are fixed. On the bases (11), vertical frames (12) are provided. On the vertical frames (12), anti-displacement devices (5) for preventing the formwork from displacing are provided. The anti-displacement device (5) includes two L-shaped blocks (51), a stop block (52), and a lifting electric push rod (53). At one end of the vertical frame (12) far from the child vehicle (2), a first horizontal plate (121) is provided. At the top of the first horizontal plate (121), a first hinge seat (122) is provided. At the top of the stop block (52), a second horizontal plate (521) is installed. The tail end of the lifting electric push rod (53) is hinged to the first hinge seat (122), and the output end of the lifting electric push rod (53) is hinged to a second hinge seat (526). At one end of the stop block (52) facing the child vehicle (2), an inner groove (522) and a buffer block (523) slidably fitted with the inner groove (522) are provided. In the inner groove (522), a number of buffer springs (524) are provided. The buffer springs (524) are fixedly connected to the back of the buffer block (523). At the bottom of the buffer block (523), an outer chamfer (525) is provided. At the bottom of the mother vehicle (1), a suspension plate (13) is provided. On the suspension plate (13), an avoidance window (131) is opened. On both sides of the avoidance window (131), rotating seats (132) are provided. A rotating shaft (133) is rotatably provided on the two rotating seats (132). A positioning member (6) is installed on the rotating shaft (133). At the top of the suspension plate (13), a driving assembly for driving the rotating shaft (133) to rotate is provided. Inside the avoidance window (131), a fixing plate (14) is provided. On the fixing plate (14), a position detection sensor (141) arranged vertically is provided. Between the two tracks (3), a mounting plate (31) is provided. On the mounting plate (31), a mating member (7) that is positioned and snap-fitted with the positioning member (6) and a detection member (8) that cooperates with the position detection sensor (141) are provided.

2. The mother-child vehicle with anti-displacement function according to claim 1, characterized in that: At the bottom of the second horizontal plate (521), a second hinge seat (526) is provided. The second hinge seat (526) is directly below the first hinge seat (122). The two L-shaped blocks (51) are symmetrically arranged on the vertical frame (12). The two L-shaped blocks (51) are located between the first hinge seat (122) and the second hinge seat (526). A sliding groove (527) for slidably fitting with the stop block (52) and an avoidance groove (528) for avoiding the second horizontal plate (521) are formed between the two L-shaped blocks (51).

3. The mother-and-child vehicle with an anti-displacement function according to claim 2, wherein: On the vertical frame (12), a protective cover (123) for protecting the lifting electric push rod (53) is provided.

4. The mother-child vehicle with anti-displacement function according to claim 1, wherein: The driving component is a cylinder (9), a connecting shaft (10) is installed at the output end of the cylinder (9), a third hinge seat (134) is provided at the top of the suspension plate (13), two symmetrically arranged eccentric plates (137) are provided in the middle of the rotating shaft (133), the tail end of the cylinder (9) is hinged to the third hinge seat (134), the connecting shaft (10) is located between the two eccentric plates (137), and the connecting shaft (10) is rotatably connected to the two eccentric plates (137).

5. The mother-and-child vehicle with an anti-shift function according to claim 4, wherein: One end of the rotating shaft (133) is provided with a synchronous rotating piece (135), and two infrared sensors (136) for detecting the position of the synchronous rotating piece (135) are symmetrically arranged on both sides of one end of the rotating shaft (133) at the top of the suspension plate (13).

6. The mother-daughter vehicle with an anti-displacement function according to claim 5, characterized in that: The positioning member (6) includes two positioning inserting rods (61), the cooperating member (7) includes a first bottom block (71) and two second bottom blocks (72), the two positioning inserting rods (61) are respectively located on both sides of the two eccentric plates (137), one end of the positioning inserting rod (61) is fixedly connected to the rotating shaft (133), the first bottom block (71) is arranged in the middle of the mounting plate (31), the two second bottom blocks (72) are symmetrically arranged on both sides of the first bottom block (71), and a positioning slot (73) for positioning and plugging and cooperating with the other end of the positioning inserting rod (61) is formed between the first bottom block (71) and the second bottom block (72).

7. The mother-child vehicle with an anti-displacement function according to claim 6, characterized in that: Guide chamfers (74) are provided on both the first bottom block (71) and the second bottom block (72).

8. The mother-child vehicle with an anti-displacement function according to claim 1, wherein: The positioning member (6) includes two positioning plates (62), the cooperating member (7) includes a vertical shaft (75) and a positioning wheel (76), a clamping groove (621) for clamping and cooperating with the positioning wheel (76) is provided on the inner side of the positioning plate (62), a bearing (761) coaxial with it is provided in the middle of the positioning wheel (76), the two positioning plates (62) are symmetrically arranged on the rotating shaft (133), and the two eccentric plates (137) are located between the two positioning plates (62), the vertical shaft (75) is arranged on the top of the mounting plate (31), and the positioning wheel (76) is rotatably arranged on the vertical shaft (75) through the bearing (761).

Citation Information

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