Rear inflation device

Abstract

The present invention provides a rear inflation device. The rear inflation device comprises: a first driving member, the first driving member comprises a first cylinder body and a first output rod telescopically arranged on the first cylinder body; a first rim connecting plate, the first rim connecting plate is fixedly connected to the first cylinder body; a limiting member, the limiting member is fixedly connected to the first output rod, and the side of the limiting member away from the first rim connecting plate has a limiting surface; a second rim connecting plate, the second rim connecting plate is in contact with the limiting surface; so as to adjust the rim width by controlling the stroke of the first output rod. The technical solution of the present invention solves the problems of the rear inflation device in the prior art, such as complex structure, slow adjustment speed, easy wear and inconvenient maintenance.

Description

Technical Field

[0001] The invention relates to the technical field of tire production, and in particular to a post-inflation device. Background Art

[0002] The rear inflation device is an important part of the tire vulcanizer. It inflates the tire after vulcanization is completed to cool and shape the tire. In order to adapt to tires of different specifications, the rear inflation device usually adjusts the rim width by adjusting the distance between the two rim connection plates when changing tire specifications.

[0003] When adjusting the distance between the two rim connection plates, the rear inflation device in the prior art usually uses a motor, a reducer and a worm gear to adjust the rim width, or uses a motor, a reducer and a gear to adjust the rim width. The above adjustment methods have the problems of complex structure, slow adjustment speed, easy wear and inconvenient maintenance. Summary of the invention

[0004] The main purpose of the present invention is to provide a post-inflation device to solve the problems of the post-inflation device in the prior art, such as complex structure, slow adjustment speed, easy wear and inconvenient maintenance.

[0005] In order to achieve the above-mentioned purpose, the present invention provides a rear inflation device, comprising: a first driving member, the first driving member comprising a first cylinder body and a first output rod telescopically arranged on the first cylinder body; a first rim connecting plate, the first rim connecting plate being fixedly connected to the first cylinder body; a limiting member, the limiting member being fixedly connected to the first output rod, and a side of the limiting member away from the first rim connecting plate having a limiting surface; a second rim connecting plate, the second rim connecting plate being in contact with the limiting surface; so as to adjust the rim width by controlling the stroke of the first output rod.

[0006] Furthermore, the first driving member is an oil cylinder or a pneumatic cylinder.

[0007] Furthermore, the rear inflation device also includes a detection member, which is connected to the first cylinder body and is used to detect the stroke of the first output rod.

[0008] Furthermore, a first avoidance hole for avoiding the limit piece is opened on the second rim connection plate, and at least a part of the limit piece passes through the first avoidance hole; the rear inflation device also includes: a locking mechanism, the locking mechanism is arranged on the side of the second rim connection plate away from the first rim connection plate, the locking mechanism cooperates with the limit piece passing through the first avoidance hole and has a locking state that prevents the limit piece from moving relative to the locking mechanism and an unlocking state that allows the limit piece to move relative to the locking mechanism.

[0009] Furthermore, the limiting member is a limiting rod, and along the direction away from the first rim connecting disk, the limiting rod includes a first rod segment and a second rod segment connected to each other, and the diameter of the first rod segment is larger than the diameter of the second rod segment, so as to form an annular limiting surface at the connection between the second rod segment and the first rod segment; a first avoidance hole for avoiding the second rod segment is opened on the end surface of the second rim connecting disk facing the first rim connecting disk, and the end surface is in contact with the limiting surface.

[0010] Furthermore, a card slot is provided on the second rod section, and the card slot has two slot walls arranged opposite to each other along the moving direction of the limit member. The locking mechanism includes: a card block, which is movably arranged along a first direction, and the first direction is perpendicular to the moving direction of the limit member. When the locking mechanism is in a locked state, the card block extends into the card slot and cooperates with the two slot walls in a limiting manner; when the locking mechanism is in an unlocked state, the card block falls out of the card slot.

[0011] Furthermore, the second rod segment is provided with an annular slot extending circumferentially thereof; the card block comprises a first sub-card block and a second sub-card block arranged opposite to each other, the first sub-card block is provided with a first groove, the second sub-card block is provided with a second groove, and the first groove and the second groove are connected to form a locking hole; when the locking mechanism is in a locking state, the first sub-card block and the second sub-card block respectively extend into the slot from both sides of the second rod segment, and clamp the second rod segment through the locking hole; when the locking mechanism is in a locking state, the first sub-card block and the second sub-card block respectively move to both sides of the second rod segment and escape from the slot.

[0012] Furthermore, the locking mechanism also includes: a guide seat, the guide seat includes a first positioning plate, a second positioning plate and a guide plate, the first positioning plate and the second positioning plate are arranged at intervals along the first direction, the guide plate is connected to the first ends of the first positioning plate and the second positioning plate, the second ends of the first positioning plate and the second positioning plate are connected to the second rim connecting plate, a second avoidance hole is opened on the guide plate for avoiding the second rod segment, and the second avoidance hole is arranged opposite to the first avoidance hole; the first sub-clamp block is clamped between the guide plate and the second rim connecting plate, and the second sub-clamp block is clamped between the guide plate and the second rim connecting plate; the first sub-clamp block and the second sub-clamp block are both arranged between the first positioning plate and the second positioning plate, and the first sub-clamp block is arranged close to the first positioning plate The second sub-card block is arranged close to the second positioning plate; the second driving member and the mounting plate, the second driving member includes a second cylinder body and a second output rod telescopically arranged on the second cylinder body, the second cylinder body is fixedly connected to the mounting plate, the mounting plate is parallel to the second positioning plate, and the second positioning plate is located between the first positioning plate and the mounting plate, a first clearance hole is opened on the second positioning plate, and the second output rod is fixedly connected to the second sub-card block after passing through the first clearance hole; a connecting rod, a second clearance hole is opened on the second positioning plate, and a third clearance hole arranged opposite to the second clearance hole is opened on the second sub-card block, one end of the connecting rod is fixedly connected to the mounting plate, and the other end of the connecting rod is fixedly connected to the first sub-card block after passing through the second clearance hole and the third clearance hole.

[0013] Further, the rear inflation device also includes a bracket and a third driving member, the third driving member includes a third cylinder body and a third output rod telescopically arranged on the third cylinder body, the second rim connecting plate is fixedly connected to the bracket, the first rim connecting plate or the first cylinder body is slidably connected to the bracket, the third cylinder body is fixedly connected to the bracket, and the third output rod is drivingly connected to the first rim connecting plate or the first cylinder body; or, the rear inflation device also includes a bracket and a third driving member, the third driving member includes a third cylinder body and a third output rod telescopically arranged on the third cylinder body, the first rim connecting plate or the first cylinder body is fixedly connected to the bracket, the second rim connecting plate is slidably connected to the bracket, the third cylinder body is fixedly connected to the bracket, and the third output rod is drivingly connected to the second rim connecting plate.

[0014] Furthermore, there are multiple first rim connection plates, second rim connection plates, first drive members and limit members; the rear inflation device also includes: a column; an intermediate beam, the intermediate beam is fixedly connected to the column and extends in the horizontal direction, a second rim connection plate is arranged above the intermediate beam, and another second rim connection plate is arranged below the intermediate beam; an upper beam, the upper beam is slidably connected to the column and is located above the intermediate beam, and the upper beam is fixedly connected to a first rim connection plate; a lower beam, the lower beam is slidably connected to the column and is located below the intermediate beam, and the lower beam is fixedly connected to another first rim connection plate; a third drive member, the third drive member includes a third cylinder body and a third output rod telescopically arranged on the third cylinder body, the third cylinder body is fixedly connected to the lower beam, and the third output rod is fixedly connected to the upper beam.

[0015] Furthermore, there are multiple first rim connection plates, second rim connection plates, first driving members and limit members; the rear inflation device also includes: a column, a connecting seat and an intermediate beam, the connecting seat is arranged parallel to the column, the intermediate beam is connected between the connecting seat and the column, the upper and lower ends of the connecting seat are respectively provided with a first rim connection plate, and the first cylinder body is connected to the connecting seat; an upper beam, the upper beam is slidably connected to the column and is located above the intermediate beam, and the upper beam is fixedly connected to a second rim connection plate; a lower beam, the lower beam is slidably connected to the column and is located below the intermediate beam, and the lower beam is fixedly connected to another second rim connection plate; a third driving member, the third driving member includes a third cylinder body and a third output rod telescopically arranged on the third cylinder body, the third cylinder body is fixedly connected to the lower beam, and the third output rod is fixedly connected to the upper beam.

[0016] Further, along the length direction of the upper beam, a plurality of first rim connection plates are fixedly connected to the upper beam at intervals; or, along the length direction of the upper beam, a plurality of second rim connection plates are fixedly connected to the upper beam at intervals.

[0017] Furthermore, there are multiple third driving members, multiple middle beams, multiple upper beams and multiple lower beams, and multiple middle beams are arranged at intervals around the circumference of the column.

[0018] By applying the technical solution of the present invention, a first driving member and a limiting member fixedly connected to the first output rod of the first driving member are provided, the first rim connecting plate is fixedly connected to the first cylinder of the first driving member, the relative position between the limiting member and the first rim connecting plate is adjusted by controlling the stroke of the first output rod of the first driving member, the limiting surface of the limiting member contacts and cooperates with the second rim connecting plate, and is used to limit the position of the second rim connecting plate, so as to adjust the relative position between the first rim connecting plate and the second rim connecting plate by controlling the stroke of the first output rod of the first driving member, thereby realizing the adjustment of the rim width. The rear inflation device provided by the present application only needs to control the stroke of the first output rod of the first driving member when the tire specifications need to be changed, so as to realize the rapid adjustment of the rim width. Compared with the worm gear or gear adjustment method in the prior art, the rear inflation device provided by the present application has the advantages of simple structure, fast adjustment speed and low wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0020] Figure 1 A schematic structural diagram of a rear inflation device according to a first embodiment of the present invention is shown;

[0021] Figure 2 Shows Figure 1 A schematic diagram of the assembly structure of the first driving member, the first rim connecting plate, the limiting member, the second rim connecting plate and the locking mechanism of the rear inflation device;

[0022] Figure 3 Shows Figure 1 A structural schematic diagram of a locking mechanism of a rear inflation device in a locked state;

[0023] Figure 4 Shows Figure 3 A structural schematic diagram of a locking mechanism in an unlocked state;

[0024] Figure 5 A schematic structural diagram of a rear inflation device according to a second embodiment of the present invention is shown;

[0025] Figure 6 A schematic structural diagram of a rear inflation device according to a third embodiment of the present invention is shown;

[0026] Figure 7 A schematic structural diagram of a rear inflation device according to a fourth embodiment of the present invention is shown;

[0027] Figure 8A schematic structural diagram of a rear inflation device according to a fifth embodiment of the present invention is shown.

[0028] The above drawings include the following reference numerals:

[0029] 10. first driving member; 11. first cylinder body; 12. first output rod; 20. first rim connecting plate; 30. limiting member; 31. first rod segment; 311. limiting surface; 32. second rod segment; 321. clamping groove; 40. second rim connecting plate; 41. first avoidance hole; 42. end surface; 50. detection member; 60. locking mechanism; 61. clamping block; 611. first sub-block; 612. second sub-block; 613. first groove; 614. second groove; 615. locking hole; 616. third avoidance hole; 62. Guide seat; 621, first positioning plate; 622, second positioning plate; 623, guide plate; 624, second avoidance hole; 625, first make way hole; 626, second make way hole; 63, second driving member; 631, second cylinder body; 632, second output rod; 64, mounting plate; 65, connecting rod; 70, column; 80, middle beam; 90, upper beam; 100, lower beam; 110, third driving member; 111, third cylinder body; 112, third output rod; 120, connecting seat; 130, rim; 140, carcass. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] In order to solve the problems of complex structure, slow adjustment speed, easy wear and inconvenient maintenance of the post-inflation device in the prior art, the present invention provides a post-inflation device for inflating a vulcanized tire and cooling it to shape.

[0032] like Figure 1As shown, the rear inflation device includes a first driving member 10, a first rim connecting plate 20, a limiting member 30 and a second rim connecting plate 40. The first driving member 10 includes a first cylinder body 11 and a first output rod 12 telescopically arranged on the first cylinder body 11. The first rim connecting plate 20 is fixedly connected to the first cylinder body 11, the limiting member 30 is fixedly connected to the first output rod 12, and the side of the limiting member 30 away from the first rim connecting plate 20 has a limiting surface 311, and the second rim connecting plate 40 is in contact with the limiting surface 311; so as to adjust the rim width by controlling the stroke of the first output rod 12.

[0033] In the present application, a first driving member 10 and a limiting member 30 fixedly connected to the first output rod 12 of the first driving member 10 are provided, the first rim connecting plate 20 is fixedly connected to the first cylinder body 11 of the first driving member 10, and the relative position between the limiting member 30 and the first rim connecting plate 20 is adjusted by controlling the stroke of the first output rod 12 of the first driving member 10. The limiting surface 311 of the limiting member 30 contacts and cooperates with the second rim connecting plate 40, and the limiting surface 311 of the limiting member 30 is used to limit the position of the second rim connecting plate 40, thereby adjusting the relative position between the first rim connecting plate 20 and the second rim connecting plate 40 by controlling the stroke of the first output rod 12 of the first driving member 10. The tire includes two rims 130 arranged opposite to each other, and the two rims 130 are fixedly connected to the first rim connecting plate 20 and the second rim connecting plate 40 respectively. By adjusting the distance between the first rim connecting plate 20 and the second rim connecting plate 40, the distance between the two rims 130 is adjusted, thereby realizing the adjustment of the rim width. The rear inflation device provided in the present application can achieve rapid adjustment of the rim width by only controlling the stroke of the first output rod 12 of the first driving member 10 when the tire specification needs to be changed.

[0034] In addition, since the worm gear or gear matching method in the prior art is prone to wear problems during long-term use, the process of repairing the tooth shape of the worm gear or gear is very complicated, which makes the maintenance of the rear inflation device inconvenient, and directly replacing the worm gear or gear leads to excessively high maintenance costs. The present application improves the structure of the rear inflation device to make it have the advantages of simple structure, fast adjustment speed and low wear.

[0035] Optionally, the first driving member 10 is an oil cylinder or an air cylinder. The cylinder body of the oil cylinder or the air cylinder serves as the first cylinder body 11 of the first driving member 10, and the piston rod of the oil cylinder or the air cylinder serves as the first output rod 12 of the first driving member 10. The medium of the air cylinder is air, which does not cause pollution and has a low cost of the medium. Since the compression rate of air is much greater than that of hydraulic oil, the oil cylinder has the advantages of large output force, good working stability and good response compared with the air cylinder.

[0036] exist Figure 1In the optional embodiment shown, the first driving member 10 is a cylinder, the cylinder body of the cylinder serves as the first cylinder body 11 of the first driving member 10, and the piston rod of the cylinder serves as the first output rod 12 of the first driving member 10. In this way, when the formation of the first output rod 12 is controlled, it has the advantages of higher efficiency and better precision.

[0037] like Figure 1 As shown, the rear inflation device further includes a detection member 50, which is connected to the first cylinder body 11 and is used to detect the stroke of the first output rod 12. In this way, the actual stroke of the first output rod 12 is detected by the detection member 50, and the stroke of the first output rod 12 is adjusted according to the detection result, so as to achieve precise adjustment of the position of the first output rod 12, thereby achieving precise adjustment of the rim width.

[0038] Optionally, the detection member 50 is a displacement sensor for detecting the position of the piston rod of the oil cylinder. The rear inflation device provided in the present application also includes a controller, which is electrically connected to the detection member 50. The detection member 50 feeds back the detection result to the controller, and the controller implements closed-loop control of the position of the first output rod 12 according to the result detected by the detection member 50, thereby ensuring precise adjustment of the stroke of the first output rod 12, thereby achieving precise adjustment of the rim width.

[0039] To facilitate the placement of the tire, the first driving member 10, the first rim connection plate 20 and the stopper 30 move synchronously relative to the second rim connection plate 40. The second rim connection plate 40 can be used as a moving end or a fixed end. The two rims 130 of the tire are fixedly connected to the first rim connection plate 20 and the second rim connection plate 40 respectively, and the carcass 140 of the vulcanized tire is connected to the rim as the fixed end, and then the rim as the moving end is controlled to move in a direction close to the rim as the fixed end until the second rim connection plate 40 contacts and cooperates with the stopper 30.

[0040] like Figure 1 and Figure 2As shown, a first avoidance hole 41 for avoiding the limit member 30 is opened on the second rim connection plate 40, and at least a part of the limit member 30 passes through the first avoidance hole 41; the rear inflation device also includes a locking mechanism 60, which is arranged on a side of the second rim connection plate 40 away from the first rim connection plate 20, and the locking mechanism 60 cooperates with the limit member 30 passing through the first avoidance hole 41 and has a locking state that prevents the limit member 30 from moving relative to the locking mechanism 60 and an unlocking state that allows the limit member 30 to move relative to the locking mechanism 60. In this way, when the second rim connection plate 40 is in contact with the limit member 30, the locking mechanism 60 is controlled to switch to the locking state, thereby limiting the relative position between the limit member 30 and the locking mechanism 60, and reliably limiting the second rim connection plate 40 between the locking mechanism 60 and the limit surface 311 of the limit member 30, thereby reliably limiting the relative position between the second rim connection plate 40 and the first rim connection plate 20, thereby avoiding mutual movement between the two.

[0041] Optionally, the limiting member 30 is a limiting rod, and in the direction away from the first rim connection plate 20, the limiting rod includes a first rod segment 31 and a second rod segment 32 connected to each other, and the diameter of the first rod segment 31 is larger than the diameter of the second rod segment 32, so as to form an annular limiting surface 311 at the connection between the second rod segment 32 and the first rod segment 31; a first avoidance hole 41 for avoiding the second rod segment 32 is opened on the end surface 42 of the second rim connection plate 40 facing the first rim connection plate 20, and the end surface 42 is in contact with the limiting surface 311. By ensuring the coaxiality between the axis of the limiting rod and the axis of the first rim connection plate 20, the coaxiality between the axis of the limiting rod and the center line of the first avoidance hole 41 is ensured, thereby ensuring the coaxiality between the first rim connection plate 20 and the second rim connection plate 40; by ensuring the parallelism of the annular limiting surface 311 and the end surface 42 of the second rim connection plate 40, the parallelism between the two rims 130 is ensured, thereby ensuring the product quality of the tire.

[0042] When the first rim connecting plate 20 is used as the fixed end and the second rim connecting plate 40 is used as the movable end, the locking mechanism 60 is controlled to be in the unlocked state, the first output rod 12 of the first driving member 10 is controlled to extend a predetermined distance, and the first output rod 12 drives the limiting member 30 to move to a predetermined position in a direction away from the first rim connecting plate 20, and then the second rim connecting plate 40 is controlled to move relative to the first rim connecting plate 20, and the second rim connecting plate 40 is sleeved on the second rod segment 32 through the first avoidance hole 41 until the end face 42 of the second rim connecting plate 40 abuts against the limiting face 311 of the first rod segment 31, and then the locking mechanism 60 is controlled to switch to the locked state, and lock and cooperate with the second rod segment 32 passing through the first avoidance hole 41; when the first rim connecting plate 20 is in the unlocked state, the first output rod 12 of the first driving member 10 is controlled to extend a predetermined distance, and the first output rod 12 drives the limiting member 30 to move to a predetermined position in a direction away from the first rim connecting plate 20, and then the second rim connecting plate 40 is controlled to move relative to the first rim connecting plate 20, and the second rim connecting plate 40 is sleeved on the second rod segment 32 through the first avoidance hole 41, until the end face 42 of the second rim connecting plate 40 abuts against the limiting face 311 of the first rod segment 31, and then the locking mechanism 60 is controlled to switch to the locked state, and lock and cooperate with the second rod segment 32 passing through the first avoidance hole 41; when the first rim connecting plate 20 is in the unlocked state, the first output rod 12 of the first driving member 10 is controlled to extend a predetermined distance, and the first output rod 12 drives the limiting member 30 to move to When the disk 20 is used as the moving end and the second rim connection disk 40 is used as the fixed end, the locking mechanism 60 is controlled to be in an unlocked state, and the first output rod 12 of the first driving member 10 is controlled to extend a predetermined distance. The first output rod 12 drives the limiting member 30 to move to a predetermined position in a direction away from the first rim connection disk 20, and then the first driving member 10, the first rim connection disk 20 and the limiting member 30 are controlled to move synchronously in a direction close to the second rim connection disk 40 and the locking mechanism 60, and the second rod segment 32 extends into the first avoidance hole 41 until the limiting surface 311 on the first rod segment 31 abuts against the end surface 42 of the second rim connection disk 40, and then the locking mechanism 60 is controlled to switch to a locked state and lock with the second rod segment 32 passing through the first avoidance hole 41.

[0043] Optionally, a slot 321 is provided on the second rod section 32, and the slot 321 has two slot walls arranged opposite to each other along the moving direction of the limiting member 30. The locking mechanism 60 includes a block 61, and the block 61 is movably arranged along a first direction, and the first direction is perpendicular to the moving direction of the limiting member 30. When the locking mechanism 60 is in a locked state, the block 61 extends into the slot 321 and cooperates with the two slot walls; when the locking mechanism 60 is in an unlocked state, the block 61 escapes from the slot 321. In this way, by controlling the relative position between the block 61 and the slot 321, the locking mechanism 60 and the limiting member 30 are controlled to engage with each other, so that the relative position between the locking mechanism 60 and the limiting member 30 is in a locked state.

[0044] like Figures 2 to 4As shown, the second rod segment 32 is provided with an annular clamping groove 321 extending around the circumference thereof; the clamping block 61 includes a first sub-block 611 and a second sub-block 612 arranged opposite to each other, the first sub-block 611 is provided with a first groove 613, the second sub-block 612 is provided with a second groove 614, the first groove 613 and the second groove 614 are connected to form a locking hole 615; when the locking mechanism 60 is in the locking state, the first sub-block 611 and the second sub-block 612 are respectively extended from both sides of the second rod segment 32 into the clamping groove 321, and hold the second rod segment 32 through the locking hole 615; when the locking mechanism 60 is in the locking state, the first sub-block 611 and the second sub-block 612 are respectively moved to both sides of the second rod segment 32 and escape from the clamping groove 321. In this way, by providing the first sub-block 611 and the second sub-block 612 , reliable locking of the second rod segment 32 is achieved, wherein the size of the locking hole 615 is adapted to the rod diameter of the second rod segment 32 at the position where the slot 321 is opened.

[0045] like Figures 2 to 4As shown, the locking mechanism 60 also includes a guide seat 62, a second driving member 63, a mounting plate 64 and a connecting rod 65. The guide seat 62 includes a first positioning plate 621, a second positioning plate 622 and a guide plate 623. The first positioning plate 621 and the second positioning plate 622 are spaced apart along the first direction. The guide plate 623 is connected to the first ends of the first positioning plate 621 and the second positioning plate 622. The second ends of the first positioning plate 621 and the second positioning plate 622 are connected to the second rim connecting plate 40. A second avoidance hole 624 for avoiding the second rod segment 32 is opened on the guide plate 623, and the second avoidance hole 624 is arranged opposite to the first avoidance hole 41; the first sub-block 611 is clamped between the guide plate 623 and the second rim connecting plate 40, and the second sub-block 612 is clamped between the guide plate 623 and the second rim connecting plate 40; the first sub-block 611 and the second sub-block 612 are both arranged between the first positioning plate 621 and the second positioning plate 622, and the second sub-block 612 is arranged between the first positioning plate 621 and the second positioning plate 622. The first sub-block 611 is arranged near the first positioning plate 621, the second sub-block 612 is arranged near the second positioning plate 622, the second driving member 63 includes a second cylinder 631 and a second output rod 632 which is telescopically arranged on the second cylinder 631, the second cylinder 631 is fixedly connected to the mounting plate 64, the mounting plate 64 is parallel to the second positioning plate 622, and the second positioning plate 622 is located between the first positioning plate 621 and the mounting plate 64, and the second positioning plate 622 is provided with a second output rod 632 which is telescopically arranged on the second cylinder 631. A clearance hole 625, the second output rod 632 passes through the first clearance hole 625 and is fixedly connected to the second sub-block 612, the second positioning plate 622 is provided with a second clearance hole 626, the second sub-block 612 is provided with a third clearance hole 616 arranged opposite to the second clearance hole 626, one end of the connecting rod 65 is fixedly connected to the mounting plate 64, and the other end of the connecting rod 65 passes through the second clearance hole 626 and the third clearance hole 616 and is fixedly connected to the first sub-block 611.

[0046] like Figure 3 As shown, the locking mechanism 60 is in a locked state. Figure 4 As shown in FIG. 1 , the locking mechanism 60 is in an unlocked state. The working principle of the locking mechanism 60 is as follows: by controlling the second output rod 632 of the second driving member 63 to retract a predetermined distance, the locking mechanism 60 is controlled to switch from the locked state to the unlocked state. Specifically, Figure 3 As shown, the second output rod 632 retracts into the second cylinder body 631, and the second output rod 632 drives the second sub-block 612 to move rightward relative to the second positioning plate 622, and the second cylinder body 631 moves leftward relative to the second positioning plate 622, and the second cylinder body 631 drives the mounting plate 64 and the connecting rod 65 to move leftward synchronously, and the first sub-block 611 moves leftward under the push of the connecting rod 65 until the second sub-block 612 cooperates with the stopper of the second positioning plate 622, and the first sub-block 611 cooperates with the stopper of the first positioning plate 621, and the locking mechanism 60 switches to Figure 4 The unlocked state shown; the second output rod 632 of the second driving member 63 is controlled to extend a predetermined distance, so as to control the locking mechanism 60 to switch from the unlocked state to the locked state. The specific principle is the same as that of switching from the locked state to the unlocked state. The second output rod 632 of the second driving member 63 extends outward from the second cylinder body 631, and the second output rod 632 pushes the second sub-block 612 to move to the left relative to the second positioning plate 622. The second cylinder body 631 drives the mounting plate 64 and the connecting rod 65 to move to the right relative to the second positioning plate 622. The connecting rod 65 drives the first sub-block 611 to move to the right relative to the second positioning plate 622 until the first sub-block 611 and the second sub-block 612 are connected. The locking mechanism 60 switches to Figure 3 Shown in locked state.

[0047] Optionally, the second driving member 63 is a pneumatic cylinder or an oil cylinder.

[0048] exist Figures 2 to 4 In the illustrated alternative embodiment, the second driving member 63 is a cylinder.

[0049] In an optional embodiment not shown in the figure of the present application, the rear inflation device further includes a bracket and a third driving member 110, the third driving member 110 includes a third cylinder 111 and a third output rod 112 telescopically arranged on the third cylinder 111, the second rim connection plate 40 is fixedly connected to the bracket, the first rim connection plate 20 or the first cylinder 11 is slidably connected to the bracket, the third cylinder 111 is fixedly connected to the bracket, and the third output rod 112 is drivingly connected to the first rim connection plate 20 or the first cylinder 11. In this way, the second rim connection plate 40 is used as a fixed end, the first rim connection plate 20 and the first cylinder 11 are used as moving ends, the carcass of the tire is placed on the second rim connection plate 40, and the first rim connection plate 20, the first cylinder 11 and the stopper 30 are controlled to move synchronously by controlling the stroke of the third output rod 112, so as to achieve the contact and cooperation between the stopper 30 and the second rim connection plate 40.

[0050] In another optional embodiment of the present application which is not shown in the figure, the rear inflation device further includes a bracket and a third driving member 110, the third driving member 110 includes a third cylinder 111 and a third output rod 112 which is telescopically arranged on the third cylinder 111, the first rim connection plate 20 or the first cylinder 11 is fixedly connected to the bracket, the second rim connection plate 40 is slidably connected to the bracket, the third cylinder 111 is fixedly connected to the bracket, and the third output rod 112 is drivingly connected to the second rim connection plate 40. In this way, the first rim connection plate 20 and the first cylinder 11 serve as fixed ends, and the second rim connection plate 40 serves as a movable end, the carcass of the tire is placed on the first rim connection plate 20, and the movement of the second rim connection plate 40 is controlled by controlling the stroke of the third output rod 112, so as to achieve the contact and cooperation between the second rim connection plate 40 and the limiting member 30.

[0051] Optionally, a first driving member 10, a first rim connecting plate 20, a limiting member 30, a second rim connecting plate 40 and a locking mechanism 60 form a work station accordingly. The rear inflation device provided in the present application has multiple work stations, and the third driving member 110, the first driving member 10, the first rim connecting plate 20, the limiting member 30, the locking mechanism 60 and the second rim connecting plate 40 are all multiple. Each second rim connecting plate 40 or the first rim connecting plate 20 serving as the mobile end is driven by a separate third driving member 110, thereby facilitating flexible control of the rim width of each work station and realizing synchronous inflation of tires of different specifications.

[0052] Optionally, a plurality of workstations are arranged on the bracket at intervals along the vertical direction and / or the horizontal direction.

[0053] Optionally, the support is a column, and the plurality of workstations are arranged at intervals in the circumferential direction and / or axial direction around the column.

[0054] Optionally, the third driving member 110 is a pneumatic cylinder or an oil cylinder.

[0055] There is a difference between the size of the tire after inflation, cooling and shaping and the size of the tire before inflation after vulcanization. Optionally, in order to eliminate the difference and ensure the dimensional accuracy of the tire, the post-inflation device provided in the present application can also control the pre-compression amount of the tire before inflation. Specifically, when the tire is inflated using the post-inflation device provided in the present application, the first output rod 12 is first controlled to extend a first predetermined distance relative to the first cylinder body 11, the initial width of the rim is determined, and then the tire is inflated. Since the gas pressure in the tire is greater than the external gas pressure, the second rim connection plate 40 will move in a direction away from the first rim connection plate 20 under the action of the gas pressure, and the second rim connection plate 40 pushes the block 61 to move in a direction away from the first rim connection plate 20. The block 61 drives the limit member 30 and the first output rod 12 to move synchronously in a direction away from the first rim connection plate 20. When the first output rod 12 extends a second predetermined distance relative to the first cylinder body 11, the first output rod 12 is controlled to stop moving. By adjusting the difference between the first predetermined distance and the second predetermined distance, the pre-compression amount of the tire before inflation is controlled.

[0056] The controller is used to control the first drive member 10, the second drive member 63 and the third drive member 110, realize automatic control of the rear inflation device, realize inflation and cooling of the tire, and at the same time, can realize automatic adjustment of the rim width when the tire specifications are changed, and can also realize control of the pre-compression amount before tire inflation.

[0057] In order to improve the practicality and operating efficiency of the rear inflation device, the rear inflation device provided by the present application can be provided with multiple workstations to inflate multiple tires at the same time, and in order to reduce the cost of the rear inflation device, the number of the third driving members 110 can be reduced. Figure 5 and Figure 6 As shown, the present application provides two optional embodiments with four workstations and two third driving members 110, which can simultaneously inflate four tires of different specifications; Figure 7 and Figure 8 As shown, the present application provides two optional embodiments with four workstations and a third driving member 110, which can simultaneously inflate four tires of two different specifications, and the specifications of the tires on the left and right sides must be the same; wherein, Figure 5 and Figure 6 The difference is that in Figure 5 In the optional embodiment shown, the second rim connecting plate 40 serves as the moving end, and the first driving member 10, the first rim connecting plate 20 and the limiting member 30 serve as the fixed end. Figure 6 In the optional embodiment shown, the second rim connection plate 40 serves as a fixed end, and the first driving member 10, the first rim connection plate 20 and the limiting member 30 serve together as a movable end; Figure 7 and Figure 8 The difference is that in Figure 7 In the optional embodiment shown, the second rim connecting plate 40 serves as the moving end, and the first driving member 10, the first rim connecting plate 20 and the limiting member 30 serve as the fixed end. Figure 8 In the illustrated optional embodiment, the second rim connecting plate 40 serves as a fixed end, and the first driving member 10, the first rim connecting plate 20 and the limiting member 30 collectively serve as a movable end.

[0058] Four specific embodiments are described in detail below.

[0059] Embodiment 2

[0060] like Figure 5As shown, the rear inflation device includes four first wheel rim connection plates 20, four second wheel rim connection plates 40, four first driving members 10, four limit members 30 and four locking mechanisms 60; the rear inflation device also includes a column 70, two middle beams 80, two upper beams 90, two lower beams 100 and two third driving members 110, one end of the two middle beams 80 is fixedly connected to the column 70 and extends in the horizontal direction, and the two middle beams 80 are symmetrically arranged relative to the axis of the column 70, a second wheel rim connection plate 40 is arranged above the other end of each middle beam 80, and another second wheel rim connection plate 40 is arranged below the other end of each middle beam 80. The rim connecting plate 40, that is, the second rim connecting plate 40 is used as a fixed end, the two upper beams 90 are slidably connected to the column 70 and are respectively located above the two middle beams 80, each upper beam 90 is fixedly connected to a first rim connecting plate 20, two lower beams 100 are slidably connected to the column 70 and are located below the two middle beams 80, each lower beam 100 is fixedly connected to another first rim connecting plate 20, and each third driving member 110 includes a third cylinder body 111 and a third output rod 112 telescopically arranged on the third cylinder body 111, the third cylinder body 111 is fixedly connected to the lower beam 100, and the third output rod 112 is fixedly connected to the upper beam 90. In this way, in the work station located on the upper left, the locking mechanism 60 is in a locked state, so that the upper beam 90 and the middle beam 80 cannot have relative movement in the vertical direction. At this time, when the third output rod 112 of the third driving member 110 is retracted relative to the third cylinder 111, in the work station located on the lower left, the third cylinder 111 will drive the lower beam 100 to have relative movement in the vertical direction relative to the middle beam 80, so that the lower beam 100 drives the first driving member 10, the first wheel rim connecting plate 20, and the limiting member 30 to synchronously move in the direction close to the second wheel rim connecting plate 40 until the limiting member 30 contacts and cooperates with the second wheel rim connecting plate 40. The locking mechanism 60 corresponding to the workstation is switched from an unlocked state to a locked state, and the relative position between the lower beam 100 and the middle beam 80 in the vertical direction is locked; then the locking mechanism 60 located on the upper left side can be controlled to switch from a locked state to an unlocked state, and then by controlling the third output rod 112 of the third driving member 110 to extend relative to the third cylinder 111, the third output rod 112 will drive the upper beam 90 to move relative to the middle beam 80 in the vertical direction, and the upper beam 90 drives the first driving member 10, the first rim connecting plate 20 and the limiting member 30 in the upper left workstation to move synchronously in the direction away from the second rim connecting plate 40. The upper and lower workstations are controlled alternately to achieve the placement of the tire. The two workstations on the right have the same principles as the two workstations on the left, and will not be repeated here. Since two third driving members 110 are respectively arranged on both sides to control the movement of the two upper beams 90 and the two lower beams 100, Figure 5 In the optional embodiment shown, the tire models on the four workstations may be different, and tires of four different specifications may be inflated simultaneously.

[0061] exist Figure 5 In the optional embodiment shown, two locking mechanisms 60 and a third driving member 110 cooperate to achieve the use of a third driving member 110 to drive the upper beam 90 or the lower beam 100 to move relative to the middle beam 80 in the vertical direction.

[0062] like Figure 5 As shown, the locking mechanism 60 is disposed between the middle beam 80 and the second rim connecting plate 40; optionally, when the locking mechanism 60 is Figures 2 to 4 In the locking mechanism 60 in the illustrated embodiment, the guide seat 62 of the locking mechanism 60 is fixedly connected to the middle beam 80 .

[0063] Optionally, the number of workstations is not limited to four. In the optional embodiment not shown in the figure of the present application, the number of the first rim connection plate 20, the second rim connection plate 40, the first driving member 10, the limit member 30 and the locking mechanism 60 are all 2N, and the number of the third driving member 110, the middle beam 80, the upper beam 90 and the lower beam 100 are all N, wherein N is an integer and N≥2, and the N middle beams 80 are arranged at intervals around the circumference of the column 70, and each upper beam 90, the lower beam 100 and the third driving member 110 are arranged corresponding to each middle beam 80. In this way, multiple workstations are arranged on the same column 70 to improve the working efficiency of the rear inflation device. In addition, compared with the technical solution of the middle beam as a flip movable beam in the prior art, the middle beam 80, the upper beam 90 and the lower beam 100 provided in the present application only move in the vertical direction, thereby ensuring that the first rim connection plate 20 and the second rim connection plate 40 have good coaxiality. At the same time, the middle beam 80, the upper beam 90 and the lower beam 100 are all arranged in parallel, thereby ensuring good parallelism between the first rim connection plate 20 and the second rim connection plate 40. When the tire is produced using the post-inflation device provided by the present application, the quality of the tire is better.

[0064] Optionally, N intermediate beams 80 are arranged at equal intervals around the circumference of the column 70. Figure 5 In the illustrated optional embodiment, N=2, and the two middle beams are arranged at equal intervals.

[0065] Embodiment 3

[0066] like Figure 6As shown, the difference between the third embodiment and the second embodiment is that the second rim connection plate 40 is used as the moving end, the first rim connection plate 20 is used as the fixed end, the rear inflation device further includes a connection seat 120, the connection seat 120 is arranged in parallel with the column 70, the middle beam 80 is connected between the connection seat 120 and the column 70, the upper end and the lower end of the connection seat 120 are respectively provided with a first rim connection plate 20, and the second rim connection plate 40 and the locking mechanism 60 are connected to the upper beam 90 or the lower beam 100. Compared with the second embodiment, the first driving member 10 is installed on the connection seat 120, which can effectively prevent the first driving member 10 from frequently moving up and down with the upper beam 90 or the lower beam 100, thereby colliding with other objects during the movement, which is conducive to improving the service life and operation reliability of the rear inflation device.

[0067] like Figure 6 As shown, the locking mechanism 60 located at the top is arranged between the second rim connection plate 40 and the upper beam 90, and the locking mechanism 60 located at the bottom is arranged between the second rim connection plate 40 and the lower beam 100; optionally, when the locking mechanism 60 is Figures 2 to 4 In the locking mechanism 60 in the illustrated embodiment, the guide seat 62 of the locking mechanism 60 is fixedly connected to the upper beam 90 or the lower beam 100 .

[0068] Embodiment 4

[0069] like Figure 7 As shown, the difference between the fourth embodiment and the first embodiment is that the rear inflation device includes a column 70, a middle beam 80, an upper beam 90, a lower beam 100 and a third driving member 110, the middle portion of the middle beam 80 is fixedly connected to the column 70, a second wheel rim connection plate 40 is respectively arranged above and below the first end of the middle beam 80 in the length direction, a second wheel rim connection plate 40 is respectively arranged above and below the second end of the middle beam 80 in the length direction, and the four second wheel rim connection plates 40 serve as fixed ends; the middle portion of the upper beam 90 is slidably connected to the column 70, a first wheel rim connection plate 20 is respectively arranged at the two ends of the upper beam 90 in the length direction, and correspondingly, the middle portion of the lower beam 100 is slidably connected to the column 70, a first wheel rim connection plate 20 is respectively arranged at the two ends of the lower beam 100 in the length direction, and the four first wheel rim connection plates 20 serve as movable ends. In this way, Figure 7In the optional embodiment shown, when the locking mechanism 60 on the side close to the upper beam 90 is in the locked state and the locking mechanism 60 on the side close to the lower beam 100 is in the unlocked state, by controlling the third output rod 112 of the third driving member 110 to extend, the third cylinder 111 of the third driving member 110 moves downward and drives the lower beam 100 and the first driving members 10 on the left and right sides connected thereto, the first rim connecting plate 20, and the limiting member 30 to move downward synchronously, and then the two rims 130 of the tire are fixedly connected to the first rim connecting plate 20 and the second rim connecting plate 40 respectively, The tire carcass 140 is placed on the rim located below, and then the third output rod 112 of the third driving member 110 is controlled to retract, and the third cylinder 111 of the third driving member 110 moves upward and drives the lower beam 100 and the first driving members 10 on the left and right sides, the first rim connection plate 20, the limiter 30, the rim 130 located below and the tire carcass 140 to move upward synchronously until the second rim connection plate 40 contacts and cooperates with the limiter 30, and the locking mechanism 60 near the side of the lower beam 100 is controlled to switch to the locking state, and then the two tires located below are inflated. Since the upper beam 90 and the lower beam 100 are driven by a third driving member 110, the distance between the two first rim connection plates 20 set on the upper beam 90 and the two second rim connection plates 40 set on the middle beam 80 is the same, so the tire specifications on the left and right sides need to be the same.

[0070] exist Figure 7 In the optional embodiment shown, an upper beam 90 or a lower beam 100 is driven to move relative to the middle beam 80 by a third driving member 110, and two first rim connecting plates 20 are respectively provided on the upper beam 90 and the lower beam 100, thereby simplifying the control of the rear inflation device while realizing four workstations, simplifying the number of third driving members 110, and reducing the cost of the rear inflation device.

[0071] In an optional embodiment not shown in the figure of the present application, under the premise of ensuring the structural stability of the rear inflation device and non-interference of the various workstations, the number of first rim connection plates 20 can be further increased, and along the length direction of the upper beam 90, multiple first rim connection plates 20 are fixedly connected to the upper beam 90 at intervals, multiple first rim connection plates 20 are fixedly connected to the lower beam 100 at intervals, and multiple second rim connection plates 40 are arranged on the middle beam 80 corresponding to each first rim connection plate 20.

[0072] Optionally, a plurality of first rim connecting plates 20 are arranged on the upper beam 90 at equal intervals.

[0073] Embodiment 5

[0074] like Figure 8As shown, the difference between the fifth embodiment and the fourth embodiment is that the second rim connection plate 40 is used as the moving end, the first rim connection plate 20 is used as the fixed end, the rear inflation device further includes a connection seat 120, the connection seat 120 is arranged in parallel with the column 70, the middle beam 80 is connected between the connection seat 120 and the column 70, the upper and lower ends of the connection seat 120 are respectively provided with a first rim connection plate 20, and the second rim connection plate 40 and the locking mechanism 60 are connected to the upper beam 90 or the lower beam 100. Compared with the fourth embodiment, the first driving member 10 is installed on the connection seat 120, which can effectively prevent the first driving member 10 from frequently moving up and down with the upper beam 90 or the lower beam 100, thereby colliding with other objects during the movement, which is conducive to improving the service life and operation reliability of the rear inflation device.

[0075] exist Figures 5 to 8 In the illustrated optional embodiment, the first driving member 10 is an oil cylinder, the second driving member 63 is an air cylinder, and the third driving member 110 is an air cylinder.

[0076] The post-inflation device provided in the present application can improve the mold changing efficiency, can automatically set the rim width and pre-compression amount according to the tire formula process, and adjust the rim width and tire pre-compression amount by controlling the stroke of the first driving member 10, thereby laying a foundation for the subsequent development of digital vulcanizers; the post-inflation device provided in the present application can ensure the coaxiality and parallelism between the first rim connecting plate 20 and the second rim connecting plate 40, thereby ensuring the coaxiality and parallelism between the two rims 130, thereby improving the tire quality; the post-inflation device provided in the present application can realize the function of synchronous inflation of multiple tires in multiple stations while reducing product costs through reasonable optimization of the structure, thereby improving the economic performance and product competitiveness of the post-inflation device.

[0077] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0078] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0079] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0080] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0081] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0082] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A post-inflation device, characterized in that: include: a first driving member (10), the first driving member (10) comprising a first cylinder body (11) and a first output rod (12) telescopically arranged on the first cylinder body (11), the first driving member (10) being an oil cylinder or a gas cylinder; A first wheel rim connection plate (20), the first wheel rim connection plate (20) being fixedly connected to the first cylinder body (11); a limiting member (30), the limiting member (30) being fixedly connected to the first output rod (12), and the limiting member (30) having a limiting surface (311) on a side away from the first rim connecting plate (20); A second rim connection plate (40), the second rim connection plate (40) being in contact with and engaged with the limiting surface (311) so as to adjust the rim width by controlling the stroke of the first output rod (12); The second rim connection plate (40) is provided with a first avoidance hole (41) for avoiding the limiting member (30), and at least a portion of the limiting member (30) passes through the first avoidance hole (41); The rear inflation device also includes: a locking mechanism (60), the locking mechanism (60) being arranged on a side of the second rim connection plate (40) away from the first rim connection plate (20), the locking mechanism (60) cooperating with the limiting member (30) passing through the first avoidance hole (41) and having a locking state preventing the limiting member (30) from moving relative to the locking mechanism (60) and an unlocking state allowing the limiting member (30) to move relative to the locking mechanism (60); The limiting member (30) is a limiting rod, and in a direction away from the first rim connection plate (20), the limiting rod comprises a first rod segment (31) and a second rod segment (32) that are connected. The second rod section (32) is provided with a slot (321), the slot (321) having two slot walls arranged opposite to each other along the moving direction of the limiting member (30), and the locking mechanism (60) comprises: a card block (61), the card block (61) being movably arranged along a first direction, the first direction being perpendicular to the moving direction of the limiting member (30); when the locking mechanism (60) is in the locking state, the card block (61) extends into the card slot (321) and is limitedly engaged with the two slot walls; when the locking mechanism (60) is in the unlocking state, the card block (61) is removed from the card slot (321); The second rod section (32) is provided with a ring-shaped clamping groove (321) extending around the circumference thereof; The card block (61) comprises a first sub-card block (611) and a second sub-card block (612) which are arranged opposite to each other; the first sub-card block (611) is provided with a first groove (613); the second sub-card block (612) is provided with a second groove (614); the first groove (613) and the second groove (614) are butted against each other to form a locking hole (615); When the locking mechanism (60) is in the locking state, the first sub-block (611) and the second sub-block (612) extend from both sides of the second rod segment (32) into the clamping slot (321) respectively, and hold the second rod segment (32) through the locking hole (615); when the locking mechanism (60) is in the locking state, the first sub-block (611) and the second sub-block (612) move to both sides of the second rod segment (32) and escape from the clamping slot (321) respectively; The locking mechanism (60) further comprises: A guide seat (62), the guide seat (62) comprising a first positioning plate (621), a second positioning plate (622) and a guide plate (623), the first positioning plate (621) and the second positioning plate (622) being arranged at intervals along the first direction, the guide plate (623) being connected to first ends of the first positioning plate (621) and the second positioning plate (622), the second ends of the first positioning plate (621) and the second positioning plate (622) being connected to the second rim connecting plate (40), the guide plate (623) being provided with a second avoidance hole (624) for avoiding the second rod segment (32), the second avoidance hole (624) being arranged opposite to the first avoidance hole (41); The first sub-card block (611) is clamped between the guide plate (623) and the second rim connection plate (40), and the second sub-card block (612) is clamped between the guide plate (623) and the second rim connection plate (40); the first sub-card block (611) and the second sub-card block (612) are both arranged between the first positioning plate (621) and the second positioning plate (622), and the first sub-card block (611) is arranged close to the first positioning plate (621), and the second sub-card block (612) is arranged close to the second positioning plate (622); a second driving member (63) and a mounting plate (64), wherein the second driving member (63) comprises a second cylinder body (631) and a second output rod (632) telescopically arranged on the second cylinder body (631), the second cylinder body (631) is fixedly connected to the mounting plate (64), the mounting plate (64) is parallel to the second positioning plate (622), and the second positioning plate (622) is located between the first positioning plate (621) and the mounting plate (64), the second positioning plate (622) is provided with a first clearance hole (625), and the second output rod (632) passes through the first clearance hole (625) and is fixedly connected to the second sub-block (612); A connecting rod (65), a second clearance hole (626) is formed on the second positioning plate (622), a third clearance hole (616) is formed on the second sub-block (612) and is arranged opposite to the second clearance hole (626), one end of the connecting rod (65) is fixedly connected to the mounting plate (64), and the other end of the connecting rod (65) passes through the second clearance hole (626) and the third clearance hole (616) and is fixedly connected to the first sub-block (611).

2. The rear inflation device according to claim 1, characterized in that: The post-inflation device further comprises a detection member (50), wherein the detection member (50) is connected to the first cylinder body (11) and is used to detect the stroke of the first output rod (12).

3. The rear inflation device according to claim 1, characterized in that: The diameter of the first rod segment (31) is greater than the diameter of the second rod segment (32), so as to form an annular limiting surface (311) at the connection between the second rod segment (32) and the first rod segment (31); The first avoidance hole (41) for avoiding the second rod segment (32) is provided on the end surface (42) of the second rim connection plate (40) facing the first rim connection plate (20), and the end surface (42) is in contact with the limiting surface (311).

4. The rear inflation device according to any one of claims 1 to 3, characterized in that: The rear inflation device further comprises a bracket and a third driving member (110), the third driving member (110) comprising a third cylinder (111) and a third output rod (112) telescopically arranged on the third cylinder (111), the second wheel rim connecting plate (40) being fixedly connected to the bracket, the first wheel rim connecting plate (20) or the first cylinder (11) being slidably connected to the bracket, the third cylinder (111) being fixedly connected to the bracket, and the third output rod (112) being drivingly connected to the first wheel rim connecting plate (20) or the first cylinder (11); or, The rear inflation device further comprises a bracket and a third driving member (110), wherein the third driving member (110) comprises a third cylinder (111) and a third output rod (112) telescopically arranged on the third cylinder (111), the first wheel rim connecting plate (20) or the first cylinder (11) is fixedly connected to the bracket, the second wheel rim connecting plate (40) is slidably connected to the bracket, the third cylinder (111) is fixedly connected to the bracket, and the third output rod (112) is drivingly connected to the second wheel rim connecting plate (40).

5. The rear inflation device according to claim 1, characterized in that: The first rim connection plate (20), the second rim connection plate (40), the first driving member (10) and the limiting member (30) are all multiple; the rear inflation device further comprises: Column (70); an intermediate beam (80), the intermediate beam (80) being fixedly connected to the upright column (70) and extending in a horizontal direction, a second wheel rim connection plate (40) being arranged above the intermediate beam (80), and another second wheel rim connection plate (40) being arranged below the intermediate beam (80); an upper beam (90), the upper beam (90) being slidably connected to the upright column (70) and being located above the middle beam (80), the upper beam (90) being fixedly connected to one of the first wheel rim connection plates (20); a lower beam (100), the lower beam (100) being slidably connected to the upright column (70) and being located below the middle beam (80), the lower beam (100) being fixedly connected to another of the first wheel rim connection plates (20); A third driving member (110), the third driving member (110) comprising a third cylinder body (111) and a third output rod (112) telescopically arranged on the third cylinder body (111), the third cylinder body (111) being fixedly connected to the lower beam (100), and the third output rod (112) being fixedly connected to the upper beam (90).

6. The rear inflation device according to claim 1, characterized in that: The first rim connection plate (20), the second rim connection plate (40), the first driving member (10) and the limiting member (30) are all multiple; the rear inflation device further comprises: A column (70), a connecting seat (120) and an intermediate beam (80), wherein the connecting seat (120) is arranged parallel to the column (70), the intermediate beam (80) is connected between the connecting seat (120) and the column (70), the upper end and the lower end of the connecting seat (120) are respectively provided with a first wheel rim connecting plate (20), and the first cylinder body (11) is connected to the connecting seat (120); an upper beam (90), the upper beam (90) being slidably connected to the upright column (70) and being located above the intermediate beam (80), the upper beam (90) being fixedly connected to one of the second wheel rim connection plates (40); a lower beam (100), the lower beam (100) being slidably connected to the upright column (70) and being located below the middle beam (80), the lower beam (100) being fixedly connected to another second wheel rim connection plate (40); A third driving member (110), the third driving member (110) comprising a third cylinder body (111) and a third output rod (112) telescopically arranged on the third cylinder body (111), the third cylinder body (111) being fixedly connected to the lower beam (100), and the third output rod (112) being fixedly connected to the upper beam (90).

7. The rear inflation device according to claim 5 or 6, characterized in that: Along the length direction of the upper beam (90), a plurality of the first rim connection plates (20) are fixedly connected to the upper beam (90) at intervals; or, along the length direction of the upper beam (90), a plurality of the second rim connection plates (40) are fixedly connected to the upper beam (90) at intervals.

8. The rear inflation device according to claim 5 or 6, characterized in that: The third driving member (110), the middle beam (80), the upper beam (90) and the lower beam (100) are all multiple, and the multiple middle beams (80) are arranged at intervals in the circumferential direction of the column (70).

Images