Cloth cover trolley

Abstract

The utility model discloses a cloth cover vehicle which is characterized in that the middle part of a front foot stand is rotationally connected with the middle part of a rear foot stand through a first rotating shaft, the rear foot stand is connected with a telescopic push handle frame which is obliquely arranged through a lower locking mechanism, and the top of the front foot stand is rotationally connected with the push handle frame; the top of the push handle frame is connected with a grip frame through an upper locking mechanism, the top of the grip frame is provided with a grip pipe, and the grip pipe is provided with a top locking mechanism capable of loosening or locking the grip frame; the top locking mechanism is connected with the upper locking mechanism through an upper traction wire, and the upper locking mechanism is connected with the lower locking mechanism through a lower traction wire. And by arranging the structures such as the upper locking mechanism, the vehicle can be unlocked and locked on the basis of ensuring the stability of the grip frame, the stability of the whole vehicle is ensured, and the use safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of baby carriages, in particular to a cloth-covered baby carriage. Background Art

[0002] As an essential tool for infants and young children to travel, infant strollers are deeply loved by parents and friends. In the prior art, this type of stroller generally includes a foldable frame and a wheel assembly arranged at the bottom of the frame. The stroller frame is locked by a locking device when it is unfolded. In order to ensure the stability of the stroller, the material is mostly plastic or metal. However, infants and young children have tender skin, and such materials are easy to hurt children and make riding uncomfortable. In order to ensure the comfort of infants and young children and avoid hurting children, a seat cloth cover is usually installed on the seat rod of the frame. When folding the stroller, the handle frame is folded and retracted relative to the front and rear legs, and the seat cloth cover moves with the handle frame. When in use, the handle frame and the grip frame are not stable enough, which affects the safety of the entire vehicle. In addition, since the control mechanism is arranged at the joint between the handle frame and the rear legs, parents often need to squat to operate the control mechanism to unlock it, and then perform the folding operation. The operation is very inconvenient and not safe enough. Utility Model Content

[0003] In view of the above-mentioned shortcomings of the prior art, the technical problem to be solved by the utility model is to provide a cloth-covered vehicle, which can ensure that the vehicle can be unlocked and locked on the basis of a stable handle frame, thereby ensuring the stability of the entire vehicle and improving safety in use.

[0004] In order to solve the above technical problems, the utility model includes a front tripod and a rear tripod which are arranged crosswise, and the structural feature is that the middle part of the front tripod and the middle part of the rear tripod are rotatably connected through a first rotating shaft, the rear tripod is connected to a push handle frame which is arranged tilted and can be extended through a lower locking mechanism, and the top of the front tripod is rotatably connected to the push handle frame; the top of the push handle frame is connected to a grip frame through an upper locking mechanism, the top of the grip frame is provided with a grip tube, and a top locking mechanism which can loosen or lock the grip frame is installed on the grip tube; the top locking mechanism is connected to the upper locking mechanism through an upper traction wire, and the upper locking mechanism is connected to the lower locking mechanism through a lower traction wire. After adopting the above structure, when unlocking, the grip frame is unlocked through the top locking mechanism, so that the grip frame is rotated to be parallel to the push handle frame and the push handle frame is retracted to the lowest position, and at the same time, under the action of the upper locking mechanism and the lower locking mechanism, the push handle frame is pushed toward the front of the vehicle to complete the vehicle collection. In this process, by setting a top locking mechanism, and setting an upper locking mechanism and a top locking mechanism connected by an upper traction wire, the grip frame can be easily unlocked when a person is in an upright state, ensuring the stability and synchronization of the vehicle, making the whole vehicle stable and safer; by setting a lower locking mechanism and an upper locking mechanism connected by a lower traction wire, the push handle frame is unlocked to complete the vehicle folding, and the stability is high. The utility model ensures unlocking and locking on the basis of the stability of the push handle, ensuring the stability of the whole vehicle, and improving the safety of use.

[0005] Preferably, the top locking mechanism includes two correspondingly arranged unlocking sliders installed in the tube hole of the handle tube, an unlocking compression spring is connected between the two unlocking sliders, each of the unlocking sliders is radially penetrated by a pin hole and a key hole arranged at intervals, and a fixing pin is installed in the pin hole; a limiting hole is radially penetrated by the end of the handle tube, and two sliding grooves arranged at intervals and extending axially thereof are radially penetrated on the tube wall, two ends of the fixing pin respectively pass through the corresponding sliding grooves and can move along the length direction thereof, a limiting pin is penetrated in the limiting hole, and the limiting pin is penetrated in the key hole and can move along the length direction thereof, and the outside of the handle tube is also covered with two unlocking handles respectively clamped on the corresponding fixing pins.

[0006] Preferably, the upper locking mechanism includes a fourth rotating shaft passing through the center of the ceiling joint, the fourth rotating shaft is provided with upper push handle joint teeth, the ceiling joint is connected to the push handle upper joint through the corresponding upper push handle joint teeth, and the unlocking adjustment transmission part at the push handle upper joint is connected to the unlocking slider through the upper traction wire.

[0007] Preferably, the handle frame further comprises two support tubes which are arranged opposite to each other and connected to corresponding upper joints of the push handle, the tops of the two support tubes are both provided with a handle joint, and the handle tube is installed between the two handle joints.

[0008] Preferably, the front tripod includes a front frame body, a front wheel is installed at the bottom of the front frame body, and two front support rods that are opposite and extend obliquely upward are installed at the upper part, and the tops of the two front support rods are connected to a front connecting frame, and the front connecting frame is connected to the push handle frame.

[0009] Preferably, the rear leg frame includes a rear frame body, a rear wheel is installed at the bottom of the rear frame body, and two rear lower support rods that are opposite and extend obliquely upward are installed at the upper part, the two rear lower support rods are respectively connected to the rear upper support rods through corresponding rear foot large joints, the tops of the two rear upper support rods are connected to rear connecting frames, and the two rear connecting frames are connected between the two front support rods through a first rotating shaft.

[0010] Preferably, a balance bar is also connected between the two large joints of the hind legs.

[0011] Preferably, the lower locking mechanism includes a push handle large joint connected to the corresponding rear foot large joint through a second rotating shaft, and a transmission slider with an end clamped on the outside of the second rotating shaft is slidably connected to the outer side of the push handle large joint, and the push handle large joint is also connected to the push handle frame through a track fixing member.

[0012] Preferably, the push handle frame includes two lower push tubes respectively connected to the corresponding large joints of the push handles, and the two lower push tubes are connected to the upper push tubes through the first adjusting slider and the second adjusting slider. The second adjusting slider is connected to the unlocking adjustment transmission part at the corresponding upper joint of the push handle through the lower traction wire thereon, and a ceiling joint is installed on each of the upper push tubes.

[0013] The utility model is provided with a top locking mechanism, and an upper locking mechanism and a top locking mechanism connected by an upper traction wire, that is, an unlocking adjustment transmission member at the upper joint of the push handle is connected to an unlocking slider by an upper traction wire, so that the grip frame can be easily unlocked when a person is in an upright state, and then after the push handle frame is easily unlocked, the push handle frame is folded with the rear frame and the front frame, ensuring the stability and synchronization of the vehicle, making the whole vehicle stable and safe; by providing a lower locking mechanism and an upper locking mechanism connected by a lower traction wire, the push handle frame is synchronously unlocked with the grip frame, ensuring smooth completion of vehicle folding, and having high stability. The utility model ensures unlocking and locking on the basis of the stability of the push handle, ensuring the stability of the whole vehicle, and improving the safety of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings that constitute part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The schematic embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application. In the drawings:

[0015] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the utility model;

[0016] Figure 2 It is a three-dimensional structural schematic diagram of the utility model in another direction;

[0017] Figure 3 It is a structural schematic diagram of the main view of the utility model;

[0018] Figure 4 for Figure 3 A schematic diagram of the structure of the left view;

[0019] Figure 5 for Figure 3 A schematic diagram of the structure from a top view;

[0020] Figure 6 It is a three-dimensional structural schematic diagram of the push handle frame of the utility model;

[0021] Figure 7 for Figure 6 Schematic diagram of the structure of the unlocking handle;

[0022] Figure 8 for Figure 6 A schematic diagram of the structure of the left view;

[0023] Fig. 9 for Figure 8 Schematic diagram of the structure of AA;

[0024] Fig.10 for Figure 8 Schematic diagram of the structure of BB;

[0025] Fig.11 It is a schematic diagram of the structure of the explosion between the grip frame and the push handle frame of the utility model;

[0026] Fig.12 It is a schematic diagram of the installation structure between the large joint of the push handle and the unlocking and retracting slider of the utility model;

[0027] Fig.13 This is a structural diagram of the large joint of the push handle of the utility model;

[0028] Fig.14 for Fig.13 A schematic diagram of the structure in another direction;

[0029] Fig.15 It is a schematic diagram of the structure between the first adjusting slider, the second adjusting slider and the pipe plug 15 of the utility model;

[0030] Fig.16 for Fig.15 A schematic diagram of the structure of the main view;

[0031] Fig.17 for Fig.16Schematic diagram of the structure of CC;

[0032] Fig.18 It is a schematic diagram of the structure between the first adjusting slider and the second adjusting slider;

[0033] Fig.19 for Fig.18 A schematic diagram of the structure in another direction;

[0034] Fig. 20 It is a structural schematic diagram of the handle mechanism of the utility model;

[0035] Fig.21 for Fig. 20 A schematic diagram of the structure of the main view;

[0036] Fig. 22 for Fig.21 Schematic diagram of the structure of DD;

[0037] Fig.23 It is a schematic diagram of the structure between the grip tube and the unlocking slider of the utility model;

[0038] Fig.24 This is a schematic diagram of the position structure of the unlocking slider of the utility model;

[0039] Fig.25 It is a schematic diagram of the structure in which the unlocking handle rotates parallel to the upper push rod in the vehicle closing step of the utility model;

[0040] Fig.26 It is a structural schematic diagram of the push rod being pushed forward in the vehicle folding step of the utility model;

[0041] Fig. 27 It is a structural schematic diagram of the vehicle collecting process in the vehicle collecting step of the utility model;

[0042] Fig.28 It is a structural schematic diagram of the vehicle collection state in the vehicle collection step of the utility model;

[0043] Fig.29 It is a structural schematic diagram of the utility model in the pulling state;

[0044] Fig.30 This is a schematic diagram of the structure of the utility model in a locked state;

[0045] Fig.31 It is a schematic diagram of the structure of the vehicle collection process of the utility model;

[0046] Fig.32 It is a schematic diagram of the structure of the utility model in the vehicle folding state.

[0047] In the figure: 1-front leg, 101-front support rod, 102-front connecting frame, 2-rear leg, 201-rear lower support rod, 202-rear leg large joint, 203-rear upper support rod, 204-rear connecting frame, 205-balance rod, 3-push handle frame, 301-lower push tube, 302-upper push tube, 303-ceiling joint, 304-lower pipe plug, 305-upper pipe plug, 306-first adjustment slider, 307-second adjustment slider, 4-lower locking mechanism, 401-push handle large joint, 4011-grip groove, 4012-unlocking member sliding groove, 4013-car collection slider card groove, 4014-slider groove, 4015-limit Block slot, 402-support block, 403-transmission slider, 404-unlocking car collection slider, 405-large joint teeth, 406-unlocking transmission parts, 407-flat iron, 408-car collection track parts, 5-handle frame, 501-handle tube, 5011-slide groove, 502-unlocking slider, 5021-pin hole, 5022-key hole, 503-fixing pin, 504-unlocking compression spring, 505-unlocking handle, 5051-slideway, 506-handle joint, 507-support tube, 508-upper traction wire, 6-upper locking mechanism, 601-upper push handle joint teeth, 602-push handle upper joint, 603-lower traction wire. DETAILED DESCRIPTION

[0048] In order to make the technical personnel in this field better understand the present application scheme, the following will be combined with the attached Figure 1-32 , the technical scheme in the embodiment of the utility model is clearly and completely described. Figure 3 The left and right directions of are set to the horizontal direction, and the up and down directions are set to the vertical direction. Figure 4 The left and right directions are set to the front and back directions.

[0049] A cloth-covered vehicle comprises a front tripod 1 and a rear tripod 2 which are arranged crosswise, wherein the middle parts of the front tripod 1 and the rear tripod 2 are rotatably connected via a first rotating shaft, a tilted and retractable push handle frame 3 is connected to the rear tripod 2 via a lower locking mechanism 4, the top of the front tripod 1 is connected to the push handle frame 3, the top of the push handle frame 3 is connected to a grip frame 5 via an upper locking mechanism 6, a grip tube 501 is arranged at the top of the grip frame 5, a top locking mechanism which can loosen or lock the grip frame 5 is installed on the grip tube 501; the top locking mechanism is connected to the upper locking mechanism 6 via an upper traction wire 508, and the upper locking mechanism 6 is connected to the lower locking mechanism 4 via a lower traction wire 603, so as to ensure stable linkage, improve the stability of the whole vehicle, ensure that the vehicle can be unlocked and locked on the basis of the stability of the grip frame, and improve the safety of use. The top locking mechanism comprises two correspondingly arranged unlocking sliders 502 which are installed in the tube hole of the grip tube 501, each unlocking slider 502 is radially penetrated with a pin hole 5021 and a key hole 5022 which are arranged at intervals, a fixing pin 503 is installed in the pin hole 5021, and an unlocking compression spring 504 is connected between the two unlocking sliders 502; both ends of the grip tube 501 are radially penetrated with a limiting hole, and two sliding grooves 5011 which are arranged at intervals and extend along the axial direction thereof are radially penetrated on the tube wall, and both ends of the fixing pin 503 respectively pass through the corresponding sliding grooves 5011 and can slide along the sliding grooves 5011. It moves in the length direction, and a limit pin is passed through the limit hole. The limit pin is passed through the key hole 5022 and can move along the length direction of the key hole 5022, ensuring that the movement direction of the unlocking slider 502 is stable and will not deviate, thereby ensuring the safety of the vehicle; the outside of the handle tube 501 is also equipped with two unlocking handles 505 respectively clamped on the corresponding fixing pins 503 of the unlocking slider 502, and the inner wall of the unlocking handle 505 is provided with two corresponding and inclined slides 5051, and each fixing pin 503 can slide along the corresponding slide 5051 respectively to ensure the stability of the unlocking frame and ensure the safety of the vehicle.

[0050] The front tripod 1 comprises a front frame body, a front wheel is installed at the bottom of the front frame body, two front support rods 101 are installed on the upper part, which are opposite and extend obliquely upward, and the tops of the two front support rods 101 are connected with a front connecting frame 102, and the front connecting frame 102 is connected to the push handle frame 3. Furthermore, the two front support rods 101 extend backward and upward from the front frame body, and are respectively inclined toward each other, so that the distance between the upper ends of the two front support rods 101 is smaller than the distance between the lower ends, that is, the front frame body, the two front support rods 101 and the front connecting frame 102 form a trapezoidal structure to ensure safety in use, make the front frame body stable, reduce resistance, and facilitate driving. The front connecting frame 102 includes two front connecting sections and two rear connecting sections. The two front connecting sections are located below the two rear connecting sections. Each front connecting section bends to the upper right from its end face and extends to the rear connecting section. The two rear connecting sections are respectively inclined to the outside, that is, the distance between the two rear connecting sections is greater than the distance between the two front connecting sections. The angle between the front support rod 101 and the corresponding rear connecting section is set to an obtuse angle to ensure the stability of the vehicle and increase comfort. The two front connecting sections are respectively connected to the corresponding front support rod 101, and the two rear connecting sections are connected to the push rod frame through a third rotating shaft.

[0051] The rear leg frame 2 comprises a rear frame body, a rear wheel is installed at the bottom of the rear frame body, and two rear lower support rods 201 are installed at the upper part, which are arranged at a relatively interval and extend obliquely upward. The two rear lower support rods 201 are respectively connected to the rear upper support rods 203 through the corresponding rear leg large joints 202, and the tops of the two rear upper support rods 203 are connected to the rear connecting frame 204, and the two rear connecting frames 204 are connected between the two front support rods 101 through the first rotating shaft. Further, a balance bar 205 is also connected between the two rear leg large joints 202, and the two rear leg large joints 202 are also connected to the push handle frame 3 through the lower locking mechanism 4, so as to support the push handle frame 3, and make the rear leg frame 2 as a whole stable, balance the front leg frame 1, so as to ensure the safety of use, make the rear frame body stable, reduce the resistance, and facilitate driving. Among them, the two large rear foot joints 202 have the same structure and are both set as four-head mounting seats, including cross-arranged rear foot connecting seats and rod connecting seats. The balance bar 205 is set between the ends of the two opposite rear foot connecting seats. The end faces of the other ends of the two rear foot connecting seats have mounting grooves. The two ends of the rod connecting seat are respectively connected to the corresponding rear lower support rod 201 and rear upper support rod 203 to ensure the safety of the vehicle and the stability of the rear leg frame 2.

[0052] The above-mentioned lower locking mechanism 4 includes a push handle large joint 401 connected to the corresponding rear foot large joint 202 through a second rotating shaft, and a transmission slider 403 with an end clamped on the outside of the second rotating shaft is slidably connected to the outer side of the push handle large joint 401. The push handle large joint 401 is also connected to the push handle frame 3 through a track fixing member. Furthermore, the large joint 401 of the push handle includes a joint seat and a rod connecting seat, and a tooth groove 4011 and two unlocking member sliding grooves 4012 symmetrically arranged around the center of the joint seat are provided on the end surface of the joint seat facing the large joint 202 of the rear foot, and a vehicle collection slider clamping groove 4013 is provided on the side of the joint seat away from the large joint 202 of the rear foot; a slider groove 4014 is provided on the side of the rod connecting seat, and a limiting block groove 4015 and a plurality of first limiting holes are also provided at the bottom of the inner groove of the slider groove 4014, and the limiting block groove and the plurality of first limiting holes are arranged at intervals, and a support block 402 is installed in the limiting block groove, and a mounting pin is passed through each first limiting hole; an unlocking and vehicle collection slider 404 is installed in the slider groove 4014, The locking and catching slider 404 is provided with an elongated positioning hole extending along its length direction, and an elongated second limiting hole respectively arranged corresponding to the first limiting hole; the unlocking and catching slider 404 is pressed onto the support block 402, and the support block 402 passes through the positioning hole to expose the unlocking and catching slider 404, so as to limit the unlocking and catching slider 404; the mounting pin is passed through the first limiting hole and the second limiting hole, and the unlocking and catching slider 404 can move smoothly in the slider groove 4014, ensuring stable and smooth unlocking, and ensuring safe unlocking and locking; the lower end of the unlocking and catching slider 404 is also provided with a notch extending along its length direction, and a flat iron 407 is arranged between the notch and the slider groove 4014. The second rotating shaft is installed at the center of the rear foot connecting seat of the rear foot large joint 202 and the center of the joint seat of the push handle large joint 401. The second rotating shaft is equipped with a rear foot compression spring, and a large joint tooth 405 is installed in the installation groove of the rear foot connecting seat. One of the end faces of the large joint tooth 405 is provided with a retaining spring groove, and the rear foot compression spring is stuck in the retaining spring groove; the other end face of the large joint tooth 405 is provided with an unlocking transmission member 406 installed on the second rotating shaft; the large joint tooth 405 is stuck in the push handle large joint The unlocking transmission part 406 is clamped in the unlocking part sliding groove 4012 of the large joint 401 of the push handle in the tooth groove 4011 of the joint seat of the joint 401; the transmission slider 403 is clamped in the vehicle collection slider clamping groove 4013 of the large joint 401 of the push handle, and the end of the transmission slider 403 is clamped on the outside of the second rotating shaft, so that when the transmission slider 403 moves, it can remain centered on the second rotating shaft to avoid deviation, thereby improving the safety of the vehicle and ensuring smooth unlocking and locking without jamming.

[0053] The push handle frame 3 includes two lower push tubes 301 respectively connected to the corresponding push handle large joints 401 , and the two lower push tubes 301 are connected to an upper push tube 302 , and each of the upper push tubes 302 is installed with a ceiling joint 303 . Furthermore, the lower push tube 301 is mounted on the rod connecting seat of the push handle joint 401, and a lower positioning hole is provided on the tube wall of the lower push tube 301. The above-mentioned support block 402 is stuck in the lower positioning hole to position the lower push tube 301, ensuring that the lower push tube and the rod connecting seat of the push handle joint 401 remain in the same straight line, thereby ensuring the safety of the vehicle; the lower push tube 301 is also mounted with a vehicle collection track member 408, and the vehicle collection track member is provided with a track positioning hole corresponding to the lower positioning hole, and the support block 402 passes through the lower positioning hole and is stuck in the track positioning hole, ensuring that the lower push tube and the push handle joint 401 are firmly installed, making the entire vehicle safe and stable; the third rotating shaft is installed on the end face of the front connecting frame 102 of the vehicle collection track member facing the front leg frame 1, that is, the two rear connecting sections of the front connecting frame 102 are respectively connected to the vehicle collection track member through the corresponding third rotating shafts. Furthermore, a lower tube plug 304 is installed in the tube at the upper end of the lower push tube 301, an upper tube plug 305 is installed in the tube of the upper push tube 302 facing the lower push tube 301, the upper tube plug 305 is sleeved on the outer surface of the lower tube plug 304, and a first adjusting slider 306 is installed in the tube of the lower tube plug 304, a first adjusting hole is opened on the first adjusting slider 306, and a second adjusting slider 307 is passed through the first adjusting hole; wherein, a second adjusting hole is opened on the lower push tube 301, and a third adjusting hole is opened on the tube wall of the lower tube plug 304, and part of the second adjusting slider 307 passes through the second adjusting hole and the third adjusting hole to limit the lower tube plug 304, thereby ensuring that the upper push tube and the lower push tube are firmly connected, and the unlocking and locking process is smooth and safe.

[0054] Furthermore, the upper locking mechanism 6 includes a fourth rotating shaft passing through the center of the ceiling joint 303, and the fourth rotating shaft is provided with an upper push handle joint tooth 601, and the ceiling joint 303 is connected to the push handle upper joint 602 through the corresponding upper push handle joint tooth 601. The handle frame 5 also includes two support tubes 507 that are arranged opposite to each other and connected to the corresponding push handle upper joint 602, and the tops of the two support tubes 507 are both provided with a handle joint 506, and the handle tube 501 is installed between the two handle joints 506. The upper locking mechanism 6 includes a fourth rotating shaft passing through the center of the ceiling joint 303, and the upper push handle joint tooth 601 is provided with an upper push handle joint tooth 601, and the ceiling joint 303 is connected to the push handle upper joint 602 through the corresponding upper push handle joint tooth 601. Furthermore, a reinforcing rod is connected between the two ceiling joints 303 to reinforce the push handle frame 3 and increase its strength; a first tooth groove is opened on the end surface of the ceiling joint 303, and a ceiling compression spring groove is opened at the bottom of the groove of the first tooth groove, in which a first unlocking adjustment transmission member is installed, and a ceiling compression spring is installed on the first unlocking adjustment transmission member, and part of the upper push handle joint teeth 601 are installed in the first tooth groove and pressed on the ceiling compression spring; a second tooth groove is opened on the end surface of the push handle upper joint 602, and a push handle transmission groove is also opened in the second tooth groove, in which a second unlocking adjustment transmission member is installed, and part of the upper push handle joint teeth 601 are installed in the second tooth groove and are transmission-connected to the second unlocking adjustment transmission member; wherein, a lower traction wire is connected between the unlocking adjustment transmission member and the first adjusting slider 306, and an upper traction wire 508 is connected between the second unlocking adjustment transmission member and the handle tube 501; ensuring smooth operation during the unlocking and locking process of the vehicle, ensuring the safety and stability of the entire vehicle.

[0055] When the vehicle is in a locked state, due to the action of the large joint teeth 405 and the compression spring, the large joint teeth 405 of the push handle large joint 401 and the large joint 202 of the rear foot extend from the installation groove of the large joint 202 of the rear foot into the latching tooth groove 4011 of the large joint 401 of the push handle, and under the thrust of the compression spring, the large joint teeth 405 make the inclined surface of the unlocking transmission member 406 close to the inclined surface of the transmission slider 403, and the whole vehicle remains in a locked state. When the vehicle is folded and unlocked, the two unlocking handles 505 are rotated downward, and each fixing pin 503 slides along the inclined slide 5051 on the corresponding unlocking handle 505, pushing the unlocking slider 502 to the middle position. Since the unlocking adjustment transmission member at the push handle upper joint 602 is connected to the unlocking slider 502 through the upper traction wire, under the action of the pulling force, the unlocking adjustment transmission member pushes the upper push handle joint tooth 601 into the first tooth groove of the ceiling joint 303 through the inclined slide 5051 between the inclined surface thereon and the inclined surface of the push handle upper joint 602, so that the upper push handle joint tooth 601 is disengaged from the second tooth groove of the push handle upper joint 602, and the upper push handle joint is in an unlocked state. The push handle upper joint 602 is rotated downward until the bottom surface of the second tooth groove of the push handle upper joint 602 fits the end surface of the unlocking adjustment transmission member at the ceiling joint 303 and continues to rotate. Under the action of the thrust, the other end surface of the unlocking adjustment transmission member at the ceiling joint 303 fits with the ceiling compression spring groove of the ceiling joint 303, and the adjustment slider is connected to the corresponding unlocking adjustment transmission member of the push handle upper joint 602 through the lower traction wire thereon. Under the action of the pulling force, the second adjustment slider 307 is moved vertically into the lower push tube 301 through the slideway 5051 between the first adjustment slider 306 and the second adjustment slider 307, and the upper push tube 302 is in an unlocked state. At this time, the lower push tube 301 pushes the unlocking car folding slider 404 downward and enters the locking groove 4013 of the unlocking car folding slider of the push handle large joint 401. The transmission slider 403 is connected to the unlocking car folding slider 404 by a flat iron. Under the action of the thrust, the large joint tooth 405 is pushed into the installation groove of the rear foot large joint 202 through the inclined slideway 5051 between the inclined surface of the transmission slider 403 and the inclined surface of the unlocking transmission member 406, so that the large joint tooth 405 is disengaged from the locking tooth groove 4011 of the push handle large joint 401. At this time, the push handle large joint 401 and the rear foot large joint 202 are in an unlocked state. The push handle large joint 401 is rotated downward around the second rotating axis to rotate to the folded state and completely unlocked; the large joint tooth 405 rebounds to the locking tooth groove 4011 of the push handle large joint 401, but at this time, due to the misalignment of the large joint tooth 405 and the locking tooth groove 4011, it cannot enter until the next time the car is fully opened.When the frame is unfolded, the upper joint 602 of the push handle is rotated counterclockwise until it is parallel to the ceiling joint 303. Due to the movement of the upper joint 602 of the push handle, the upper push handle joint tooth 601 enters the second tooth groove of the upper joint 602 under the action of the compression spring at the joint tooth, so that the upper push handle joint tooth 601 is completely separated from the first tooth groove of the ceiling joint 303, and the upper joint 602 of the push handle is in a locked state. The upper push tube 302 is pulled upward in parallel until the second adjustment slider 307307 pops out of the lower push tube 301, and the upper push tube 302 is in a locked state. The large joint 401 of the push handle is rotated clockwise around the rotating axis at its joint as the center of the circle. Due to the movement of the large joint 401 of the push handle, the large joint tooth 405 enters the locking tooth groove 4011 of the large joint 401 of the push handle under the action of its compression spring, so that the large joint tooth 405 is completely separated from the mounting groove of the large joint 202 of the rear foot, and the large joint 401 of the push handle is in a locked state, and the frame is fully unfolded and locked.

[0056] The utility model is provided with a top locking mechanism, and an upper locking mechanism and a top locking mechanism connected by an upper traction wire, that is, the unlocking adjustment transmission member at the upper joint of the push handle is connected to the unlocking slider by the upper traction wire, so that the handle frame can be easily unlocked when the person is in an upright state, and then after the push handle frame is easily unlocked, the push handle frame is folded with the rear frame and the front frame, so as to ensure the stability and synchronization of the vehicle, and make the whole vehicle stable and safe; by providing a lower locking mechanism and an upper locking mechanism connected by a lower traction wire, the push handle frame and the handle frame are synchronously unlocked, so as to ensure the smooth completion of the vehicle folding, and the stability is high. Further, by providing two corresponding slideways 5051 in the unlocking handle 505, the two fixing pins 503 can slide along the corresponding inclined slideways 5051 on the unlocking handle 505, respectively, and the unlocking slider 502 is pushed to the middle position or the unlocking slider 502 is moved away from the middle position, so as to ensure that the handle frame 5 can be stably unlocked and locked and the process is smooth, so as to improve the stability of the vehicle and ensure the safety of use. A lower tube plug 304 is installed in the upper end of the lower push tube 301, an upper tube plug 305 is installed in the tube of the upper push tube 302 facing the lower push tube 301, the upper tube plug 305 is sleeved on the outer surface of the lower tube plug 304, a first adjusting slider 306 is installed in the lower tube plug 304, a first adjusting hole is opened on the first adjusting slider 306, a second adjusting slider 307 is inserted in the first adjusting hole, a second adjusting hole is also opened on the lower push tube 301, a third adjusting hole is opened on the tube wall of the lower tube plug 304, and part of the second adjusting slider 307 passes through the second The adjustment hole and the third adjustment hole limit the lower tube plug 304 to ensure that the upper push tube and the lower push tube are firmly connected. When unlocking, the adjustment slider is connected to the unlocking adjustment transmission member of the corresponding push handle upper joint 602 through the lower traction wire thereon. Under the action of pulling force, the second adjustment slider 307 is vertically moved into the lower push tube 301 through the slideway 5051 between the first adjustment slider 306 and the second adjustment slider 307, and the upper push tube 302 is in an unlocked state. The setting of this structure ensures a firm connection and makes the unlocking and locking process smooth and safe.By providing a car collecting slider card slot 4013 on the joint seat of the large joint 401 of the push handle, and installing a transmission slider 403 in the car collecting slider card slot 4013, an unlocking car collecting slider 404 is installed in the slider slot 4014, and the unlocking car collecting slider 404 is pressed on the support block 402. The support block 402 passes through the positioning hole to expose the unlocking car collecting slider 404, which is convenient for limiting the unlocking car collecting slider 404; when unlocking, the lower push tube 301 pushes the unlocking car collecting slider 404 downward to enter the card slot 4013 of the unlocking car collecting slider of the large joint 401 of the push handle, and the transmission slider 403 is released. The locking and folding slider 404 is connected by a flat iron. Under the action of thrust, the large joint tooth 405 is pushed into the installation groove of the large joint 202 of the rear foot through the inclined surface of the transmission slider 403 and the inclined surface of the unlocking transmission member 406. The large joint tooth 405 is disengaged from the latching tooth groove 4011 of the large joint 401 of the push handle. At this time, the large joint 401 of the push handle and the large joint 202 of the rear foot are in an unlocked state. The large joint 401 of the push handle is rotated downward around the second rotating shaft to rotate to the folded state and completely unlocked. The setting of this structure ensures smooth unlocking and folding, and ensures the safety and convenience of unlocking. The utility model can ensure unlocking and locking on the basis of stable push handle, and ensure the stability of the whole vehicle.

[0057] The above contents are merely examples and explanations of the structure of the utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined by the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A cloth covered vehicle, comprising a front tripod (1) and a rear tripod (2) arranged crosswise, characterized in that: The middle part of the front tripod (1) and the middle part of the rear tripod (2) are rotatably connected via a first rotating shaft; the rear tripod (2) is connected to a push handle frame (3) which is arranged tilted and can be extended and retracted via a lower locking mechanism (4); the top of the front tripod (1) is rotatably connected to the push handle frame (3); the top of the push handle frame (3) is connected to a grip frame (5) via an upper locking mechanism (6); the top of the grip frame (5) is provided with a grip tube (501); the grip tube (501) is provided with a top locking mechanism capable of loosening or locking the grip frame (5); the top locking mechanism is connected to the upper locking mechanism (6) via an upper traction wire (508); the upper locking mechanism (6) is connected to the lower locking mechanism (4) via a lower traction wire (603).

2. The cloth-covered vehicle according to claim 1, characterized in that: The top locking mechanism comprises two corresponding unlocking sliders (502) inserted into the tube hole of the grip tube (501); an unlocking compression spring (504) is connected between the two unlocking sliders (502); each of the unlocking sliders (502) is radially penetrated by a pin hole (5021) and a key hole (5022) which are arranged at intervals; a fixing pin (503) is inserted into the pin hole (5021); a limiting hole is radially penetrated at the end of the grip tube (501); two sliding grooves (5011) which are arranged at intervals and extend along the axial direction thereof are radially penetrated on the tube wall; two ends of the fixing pin (503) respectively pass through the corresponding sliding grooves (5011) and can move along the length direction thereof; a limiting pin is inserted into the limiting hole; the limiting pin is inserted into the key hole (5022) and can move along the length direction thereof; and two unlocking grips (505) which are respectively clamped on the corresponding fixing pins (503) are also sleeved on the outside of the grip tube (501).

3. The cloth-covered vehicle according to claim 2, characterized in that: The upper locking mechanism (6) comprises a fourth rotating shaft passing through the center of the ceiling joint (303), the fourth rotating shaft being provided with upper push handle joint teeth (601), the ceiling joint (303) being connected to the push handle upper joint (602) via corresponding upper push handle joint teeth (601), and the unlocking adjustment transmission member at the push handle upper joint (602) being connected to the unlocking slider (502) via an upper traction wire.

4. The cloth-covered vehicle according to claim 3, characterized in that: The handle frame (5) further comprises two support tubes (507) arranged opposite to each other and connected to corresponding push handle upper joints (602), the tops of the two support tubes (507) are both provided with handle joints (506), and the handle tube (501) is installed between the two handle joints (506).

5. The cloth-covered vehicle according to claim 4, characterized in that: The front tripod (1) comprises a front frame body, the bottom of which is provided with a front wheel, and the upper part of which is provided with two front support rods (101) which are opposite to each other and extend obliquely upwards, the tops of the two front support rods (101) are connected to a front connecting frame (102), and the front connecting frame (102) is connected to the push handle frame (3).

6. The cloth-covered vehicle according to claim 5, characterized in that: The rear leg frame (2) comprises a rear frame body, a rear wheel is mounted on the bottom of the rear frame body, and two rear lower support rods (201) are mounted on the upper portion thereof and extend opposite to each other and obliquely upward, the two rear lower support rods (201) are respectively connected to rear upper support rods (203) via corresponding rear leg large joints (202), the tops of the two rear upper support rods (203) are connected to rear connecting frames (204), and the two rear connecting frames (204) are connected between the two front support rods (101) via a first rotating shaft.

7. The cloth-covered vehicle according to claim 6, characterized in that: A balance bar (205) is also connected between the two large hind leg joints (202).

8. The cloth-covered vehicle according to claim 7, characterized in that: The lower locking mechanism (4) comprises a push handle large joint (401) connected to the corresponding rear foot large joint (202) via a second rotating shaft, a transmission slider (403) having an end portion clamped outside the second rotating shaft being slidably connected to the outer side of the push handle large joint (401), and the push handle large joint (401) is also connected to the push handle frame (3) via a track fixing member.

9. The cloth-covered vehicle according to claim 8, characterized in that: The push handle frame (3) comprises two lower push tubes (301) respectively connected to the corresponding large joints (401) of the push handle, and the two lower push tubes (301) are connected to the upper push tube (302) via a first adjustment slider (306) and a second adjustment slider (307), and the second adjustment slider (307) is connected to the unlocking adjustment transmission member at the corresponding upper joint (602) of the push handle via a lower traction wire thereon, and a ceiling joint (303) is installed on each of the upper push tubes (302).

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