Bulldozer safety seat

Abstract

The present invention relates to the technical field of bulldozer safety seats, and more specifically discloses a bulldozer safety seat, including a seat assembly, a connecting assembly is installed at the bottom of the seat assembly, a backrest assembly is movably installed on the outer side of the connecting assembly, armrest assemblies are fixedly installed on both sides of the backrest assembly, a first armrest extension assembly is movably installed on the inner side of the armrest assembly on one side of the backrest assembly, and a second armrest extension assembly is movably installed on the inner side of the armrest assembly on the other side of the backrest assembly; so that a center positioning block, a first elastic telescopic block and a second elastic telescopic block can be deformed according to the shape of the user's back, and then the backrest soft bag can completely fit the user's back, and because the first elastic telescopic block and the second elastic telescopic block have the potential energy of moving forward, they can provide effective support for the user's back, and the front side of the connecting plate can completely fit the operator's back, which is convenient for the operator to use for a long time.

Description

Technical Field

[0001] The present invention relates to the technical field of bulldozer safety seats, and more particularly to a bulldozer safety seat. Background Art

[0002] The bulldozer safety seat is an important device to ensure the safety of the driver. Its design and installation should fully consider the comfort and safety of the driver. By selecting high-quality materials and advanced manufacturing processes, as well as reasonable installation and adjustment methods, it can ensure that the safety seat plays the greatest role in the operation process. At the same time, the driver should also pay attention to the maintenance and care of the safety seat during use to extend its service life and ensure that it always maintains a good working condition.

[0003] There are some shortcomings in the existing bulldozer safety seats during use, as follows:

[0004] The backrest of the existing bulldozer safety seat is fixed in shape during use, and cannot be adjusted according to the curvature of the backrest when the seat user leans on it, so that the existing seat cannot effectively support the user's back. During long-term use, the user's back cannot be effectively supported, which will cause back pain for the user after long-term use, making it inconvenient for the operator to drive the bulldozer for a long time. The support armrests of the existing bulldozer safety seat are parallel armrests on both sides of the seat, but the armrests on both sides cannot fully support the operator's arms during use. The arms are in a suspended state during the operation of some operating levers, so it is not convenient to effectively support the operator's arms. Summary of the invention

[0005] In order to overcome the above defects of the prior art, the present invention provides a bulldozer safety seat to solve the problems existing in the above background technology.

[0006] The present invention provides the following technical solutions: a bulldozer safety seat, comprising a seat assembly, a connecting assembly is installed at the bottom of the seat assembly, a backrest assembly is movably installed on the outer side of the connecting assembly, armrest assemblies are fixedly installed on both sides of the backrest assembly, a first armrest extension assembly is movably installed on the inner side of the armrest assembly on one side of the backrest assembly, a second armrest extension assembly is movably installed on the inner side of the armrest assembly on the other side of the backrest assembly, a second limit block is fixedly connected to a side of the armrest assembly away from the backrest assembly, the seat assembly comprises a positioning base plate, a lifting assembly is fixedly connected to the top of the positioning base plate, a seat cushion positioning plate is fixedly connected to the top of the lifting assembly, and a seat cushion main body is fixedly connected to the top of the seat cushion positioning plate.

[0007] Furthermore, the connecting component includes a U-shaped positioning rod, the back of the U-shaped positioning rod is fixedly connected to an L-shaped positioning rod, the bottom of both sides of the U-shaped positioning rod is fixedly connected to a first positioning component, and the front of the bottom of the first positioning component is fixedly connected to a second positioning component.

[0008] Furthermore, the backrest assembly includes a lifting slider, the bottom of which is fixedly connected to a connecting plate, the front of which is fixedly connected to a soft backrest bag, the back of which is fixedly connected to a central positioning block, the top, bottom and both sides of the central positioning block are fixedly connected to a first elastic telescopic block, the two sides of the first elastic telescopic block are fixedly connected to second elastic telescopic blocks, the top, bottom and both sides of the central positioning block and the first elastic telescopic blocks on both sides are arranged in strips and in a cross shape with the central positioning block, and the second elastic telescopic blocks are distributed in an array in the four spaces divided in a cross shape by the central positioning block and the first elastic telescopic blocks.

[0009] Furthermore, the first elastic telescopic block includes a first positioning frame, a square groove is provided on one side of the first positioning frame close to the center positioning block, a first spring is fixedly connected to the inner side of the first positioning frame, a first circular plate is fixedly connected to the front side of the first spring, a first sliding block is fixedly connected to the first circular plate on the side of the square groove of the first positioning frame, and the second elastic telescopic block includes a second positioning frame, square grooves are provided on both sides of the second positioning frame close to the first elastic telescopic block, a second spring is fixedly connected to the inner side of the second positioning frame, a second circular plate is fixedly connected to the front side of the second spring, and a second sliding block is fixedly connected to the two sides of the square groove of the second positioning frame, and the inner side of the lifting slider is provided with the same structure as that inside the second elastic telescopic block.

[0010] Furthermore, the armrest assembly includes an armrest positioning plate, a side of the armrest positioning plate away from the backrest assembly is fixedly connected to the first rotating shaft, an armrest support plate is movably installed on the outer side of the first rotating shaft, the top and bottom of the armrest support plate are provided with guide sliding grooves, the front and back of the guide sliding grooves are provided with circular rotating grooves, the top of the armrest support plate is fixedly connected to an armrest soft bag, the front of the armrest support plate is fixedly connected to the second rotating shaft, the front of the second rotating shaft is fixedly connected to a positioning cap, the outer side of the second rotating shaft is movably sleeved with a sealing plate, the front of the sealing plate is fixedly connected to a torque spring, and the bottom of the front of the armrest support plate is fixedly connected to a first limit block.

[0011] Furthermore, the first armrest extension component includes a first extended armrest, the top and bottom of the first extended armrest are fixedly connected with a first guide rotating block, the first extended armrest is fixedly connected with a first friction pushing block near the front side close to the armrest positioning plate, the inner side of the first extended armrest is movably connected with a connecting positioning block, the connecting positioning block is fixedly connected with a second friction pushing block on a side away from the armrest positioning plate, and a guide pushing groove is provided on a side of the first extended armrest away from the armrest positioning plate.

[0012] Furthermore, the second armrest extension assembly includes a second extended armrest, a positioning connection groove is opened on the front side of the second extended armrest, the top and bottom of the second extended armrest are fixedly connected with a second guide rotating block, and the second extended armrest is fixedly connected with a third friction pushing block near the front side close to the armrest positioning plate.

[0013] Furthermore, the diameter of the first circular plate and the diameter of the inner side of the first positioning frame have a clearance match, the size of the first sliding block and the size of the square groove of the first positioning frame have a clearance match, the diameter of the second circular plate and the diameter of the inner side of the second positioning frame have a clearance match, the size of the second sliding block and the size of the square groove of the second positioning frame have a clearance match, the front and back sides of the first positioning frame and the front side of the first circular plate are both provided with circular holes, and the front and back sides of the second positioning frame and the front side of the second circular plate are both provided with circular holes.

[0014] Furthermore, the widths of the first guide rotating block and the second guide rotating block are clearance matched with the width of the guide sliding groove, the diameter of the circular rotating groove is tolerance matched with the diameters of the front and back sides of the first guide rotating block and the second guide rotating block, and the thickness of the first extended armrest and the second extended armrest are clearance matched with the height of the inner side of the armrest support plate.

[0015] Furthermore, the cross-sectional dimensions of the connecting positioning block are clearance matched with the cross-sectional dimensions of the positioning connecting groove, the side of the third friction pushing block away from the second extended armrest is on the same plane as one side of the second extended armrest, the side of the first friction pushing block away from the first extended armrest is on the same plane as the other side of the first extended armrest, and the width of the guide pushing groove is clearance matched with the diameter of the connecting positioning block and the connecting column of the second friction pushing block.

[0016] Technical effects and advantages of the present invention:

[0017] The present invention adjusts the height of the backrest assembly so that the most protruding part of the user's back corresponds to the center positioning block, and then the user's back continues to press against the backrest assembly, which causes the center positioning block to move toward the back, and then drives the first sliding block and the first circular plate connected to the center positioning block to move toward the back, and then in the process of the rest of the back approaching the backrest assembly, the rest of the first positioning boxes and the first circular plate and the first sliding block connected to the corresponding first positioning boxes, the second circular plate and the second sliding block connected to the second positioning boxes are driven to move toward the back, and under the action of the first spring and the first spring rebound force, the first elastic telescopic block and the second elastic telescopic block always have the potential energy to move forward, so that the center positioning block, the first elastic telescopic block and the second elastic telescopic block will be deformed according to the shape of the user's back, and then the backrest soft bag can completely fit the user's back, and because the first elastic telescopic block and the second elastic telescopic block have the potential energy to move forward, they will provide effective support for the user's back, and the front side of the connecting plate can completely fit the operator's back, which is convenient for the operator to use for a long time.

[0018] The present invention rotates the armrest assemblies located on both sides of the backrest assembly so that the angle between the armrest support plate and the armrest positioning plate is ninety degrees, and at the same time the armrest support plate can be supported by the second limit block, and the user's arm will be effectively supported by the armrest soft bag. When the user operates some operating levers and the user needs to have arm support in front of the user, the user rotates the sealing plate one hundred and eighty degrees along the second rotation axis, and then pushes the first extended armrest and the first guide rotating block to move toward the front along the guide sliding groove through the first friction pushing block, and then when the first guide rotating block moves and is located in the circular rotating groove at the front, the first extended armrest is rotated ninety degrees by the first guide rotating block along the circular rotating groove. Then, through the same steps, the angle between the second extended armrest and the armrest support plate is made to be ninety degrees, so that the first armrest extension component and the second armrest extension component are in the same straight line, and then the second friction push block is pushed to slide inside the guide push groove, and then the connecting positioning block is inserted into the positioning connection groove, so that the support can be set up in front of the operator, which is convenient for effectively supporting the user's arm, and the angle between the first armrest extension component, the second armrest extension component and the armrest support plate can be adjusted according to actual use to support the user's arm, which is convenient for the user to adjust the arm support according to actual use, and the user can adjust the support position according to actual use, which is convenient for the user to operate for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the structure of the seat assembly of the present invention.

[0021] Figure 3 It is a schematic diagram of the structure of the connection assembly of the present invention.

[0022] Figure 4 A schematic diagram is used for a portion of the structure of the present invention.

[0023] Figure 5 It is a schematic structural diagram of the backrest assembly of the present invention.

[0024] Figure 6 It is a partial structural schematic diagram of the backrest assembly of the present invention.

[0025] Figure 7 It is a schematic diagram of the cross-sectional structure of the backrest assembly of the present invention.

[0026] Figure 8 It is a schematic diagram of the cross-sectional structure of the first elastic telescopic block of the present invention.

[0027] Fig. 9 It is a schematic diagram of the cross-sectional structure of the second elastic telescopic block of the present invention.

[0028] Fig.10 It is a schematic diagram of the structure of the handrail assembly of the present invention.

[0029] Fig.11 It is a partial structural schematic diagram of the armrest assembly of the present invention.

[0030] Fig.12 For the present invention Fig.11 A is an enlarged structural diagram of FIG.

[0031] Fig.13 It is a schematic structural diagram of the first armrest extension component of the present invention.

[0032] Fig.14 It is a schematic structural diagram of the second armrest extension assembly of the present invention.

[0033] The accompanying drawings are marked as follows: 1. seat assembly; 101. positioning base plate; 102. lifting assembly; 103. cushion positioning plate; 104. cushion body; 2. connecting assembly; 201. U-shaped positioning rod; 202. L-shaped positioning rod; 203. first positioning assembly; 204. second positioning assembly; 3. backrest assembly; 301. lifting slider; 302. connecting plate; 303. backrest soft bag; 304. center positioning block; 305. first elastic telescopic block; 3051. first positioning box; 3052. first spring; 3053. first circular plate; 3054. first sliding block; 306. second elastic telescopic block; 3061. second positioning box; 3062. second spring; 3063. second circular plate; 3064. second sliding block; 4 , armrest assembly; 401, armrest positioning plate; 402, armrest support plate; 403, guide sliding groove; 404, circular rotating groove; 405, sealing plate; 406, armrest soft bag; 407, first rotating axis; 408, first limit block; 409, second rotating axis; 4010, torque spring; 4011, positioning cap; 5, first armrest extension assembly; 501, first extended armrest; 502, first guide rotating block; 503, first friction push block; 504, connecting positioning block; 505, second friction push block; 506, guide push groove; 6, second armrest extension assembly; 601, second extended armrest; 602, positioning connection groove; 603, second guide rotating block; 604, third friction push block; 7, second limit block. DETAILED DESCRIPTION

[0034] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are only examples. The bulldozer safety seat involved in the present invention is not limited to the various structures recorded in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0035] Reference Figures 1 to 14 The present invention provides a bulldozer safety seat, including a seat assembly 1, a connecting assembly 2 is installed at the bottom of the seat assembly 1, a backrest assembly 3 is movably installed on the outer side of the connecting assembly 2, armrest assemblies 4 are fixedly installed on both sides of the backrest assembly 3, a first armrest extension assembly 5 is movably installed on the inner side of the armrest assembly 4 on one side of the backrest assembly 3, a second armrest extension assembly 6 is movably installed on the inner side of the armrest assembly 4 on the other side of the backrest assembly 3, a second limit block 7 is fixedly connected to a side of the armrest assembly 4 away from the backrest assembly 3, the seat assembly 1 includes a positioning base plate 101, a lifting assembly 102 is fixedly connected to the top of the positioning base plate 101, a seat cushion positioning plate 103 is fixedly connected to the top of the lifting assembly 102, and a seat cushion main body 104 is fixedly connected to the top of the seat cushion positioning plate 103.

[0036] In a preferred embodiment, the connecting component 2 includes a U-shaped positioning rod 201, the back of the U-shaped positioning rod 201 is fixedly connected to an L-shaped positioning rod 202, the bottom of both sides of the U-shaped positioning rod 201 is fixedly connected to a first positioning component 203, and the front of the bottom of the first positioning component 203 is fixedly connected to a second positioning component 204.

[0037] In a preferred embodiment, the backrest assembly 3 includes a lifting slider 301, the bottom of the lifting slider 301 is fixedly connected to a connecting plate 302, the front of the lifting slider 301 is fixedly connected to a backrest soft bag 303, the back of the backrest soft bag 303 is fixedly connected to a center positioning block 304, the top, bottom and both sides of the center positioning block 304 are fixedly connected to a first elastic telescopic block 305, the two sides of the first elastic telescopic block 305 are fixedly connected to a second elastic telescopic block 306, the top, bottom and both sides of the center positioning block 304 are arranged in strips and in a cross shape with the center positioning block 304, and the second elastic telescopic blocks 306 are distributed in an array in the four spaces divided in a cross shape by the center positioning block 304 and the first elastic telescopic blocks 305.

[0038] In a preferred embodiment, the first elastic telescopic block 305 includes a first positioning frame 3051, a square groove is opened on one side of the first positioning frame 3051 close to the center positioning block 304, a first spring 3052 is fixedly connected to the inner side of the first positioning frame 3051, a first circular plate 3053 is fixedly connected to the front side of the first spring 3052, and the first circular plate 3053 is fixedly connected to the first sliding block 3054 on one side of the square groove of the first positioning frame 3051, and the second elastic telescopic block 306 includes a second positioning frame 3061, and the second positioning frame 3061 is close to the first elastic Square grooves are provided on both sides of the elastic telescopic block 305, a second spring 3062 is fixedly connected to the inner side of the second positioning square frame 3061, a second circular plate 3063 is fixedly connected to the front side of the second spring 3062, and the second circular plate 3063 is fixedly connected to the second sliding block 3064 on both sides of the square groove of the second positioning frame 3061, and the inner side of the lifting slider 301 is provided with the same structure as that inside the second elastic telescopic block 306; by adjusting the height of the backrest component 3, the most protruding part of the user's back corresponds to the center positioning block 304, and then the backrest component 3 is continuously moved upward by the user's back. The squeezing will cause the central positioning block 304 to move toward the back, and then drive the first sliding block 3054 and the first circular plate 3053 connected to the central positioning block 304 to move toward the back. Then, in the process where the rest of the back is close to the backrest assembly 3, the rest of the first positioning boxes 3051 and the first circular plate 3053 and the first sliding block 3054 connected to the corresponding first positioning boxes 3051, the second positioning boxes 3061 and the second circular plate 3063 and the second sliding block 3064 connected to the second positioning boxes 3061 will move toward the back, and the first spring 3052 and the first spring Under the action of the rebound force of the spring 3052, the first elastic telescopic block 305 and the second elastic telescopic block 306 always have the potential energy to move forward, so that the center positioning block 304, the first elastic telescopic block 305 and the second elastic telescopic block 306 will deform according to the shape of the user's back, and then the backrest soft bag 303 can completely fit the user's back. Because the first elastic telescopic block 305 and the second elastic telescopic block 306 have the potential energy to move forward, they can provide effective support for the back of the user, and the front side of the connecting plate 302 can completely fit the operator's back, which is convenient for the operator to use for a long time.

[0039] In a preferred embodiment, the armrest assembly 4 includes an armrest positioning plate 401, and the side of the armrest positioning plate 401 away from the backrest assembly 3 is fixedly connected to the first rotating shaft 407, and the outer side of the first rotating shaft 407 is movably installed with an armrest support plate 402, the top and bottom of the armrest support plate 402 are provided with guide sliding grooves 403, and the front and back of the guide sliding groove 403 are provided with circular rotating grooves 404, the top of the armrest support plate 402 is fixedly connected to the armrest soft bag 406, the front of the armrest support plate 402 is fixedly connected to the second rotating shaft 409, the front of the second rotating shaft 409 is fixedly connected to the positioning cap 4011, the outer side of the second rotating shaft 409 is movably sleeved with a sealing plate 405, the front of the sealing plate 405 is fixedly connected to a torque spring 4010, and the bottom of the front of the armrest support plate 402 is fixedly connected to a first limit block 408.

[0040] In a preferred embodiment, the first armrest extension component 5 includes a first extended armrest 501, the top and bottom of the first extended armrest 501 are fixedly connected with a first guide rotating block 502, the first extended armrest 501 is fixedly connected with a first friction pushing block 503 near the front side close to the armrest positioning plate 401, the inner side of the first extended armrest 501 is movably connected with a connecting positioning block 504, the side of the connecting positioning block 504 away from the armrest positioning plate 401 is fixedly connected with a second friction pushing block 505, and a guide pushing groove 506 is provided on the side of the first extended armrest 501 away from the armrest positioning plate 401.

[0041] In a preferred embodiment, the second armrest extension component 6 includes a second extended armrest 601, a positioning connection groove 602 is provided on the front of the second extended armrest 601, the top and bottom of the second extended armrest 601 are fixedly connected to the second guide rotating block 603, and the second extended armrest 601 is fixedly connected to the front near the side of the armrest positioning plate 401; by rotating the armrest components 4 on both sides of the backrest component 3, the angle between the armrest support plate 402 and the armrest positioning plate 401 is ninety degrees, and at the same time the armrest support plate 402 can be supported by the second limit block 7, and the user's arm will be effectively supported by the armrest soft bag 406. When the user operates some operating levers and the user needs to have arm support on the front of the user, the user rotates the sealing plate 405 one hundred and eighty degrees along the second rotating axis 409, and then pushes the first extended armrest 501 and the first guide rotating block 502 along the guide sliding groove 403 to the front through the first friction pushing block 503. The first extended armrest 501 is rotated ninety degrees by the first guide rotating block 502 when the first guide rotating block 502 moves into the circular rotating groove 404 on the front side, and then the second extended armrest 601 is made to have an angle of ninety degrees with the armrest support plate 402 by the same steps, so that the first armrest extension component 5 and the second armrest extension component 6 are in the same straight line, and then the second friction pushing block 505 is pushed to slide inside the guide pushing groove 506, and then the connecting positioning block 504 is inserted into the positioning connecting groove 602, so that the support can be set up in front of the operator, which is convenient for effectively supporting the user's arm, and the angle between the first armrest extension component 5, the second armrest extension component 6 and the armrest support plate 402 can be adjusted according to actual use conditions to support the user's arm, so that the user can adjust the arm support according to actual use conditions, and the user can adjust the support position according to actual use conditions, so as to facilitate the user to operate for a long time.

[0042] In a preferred embodiment, the clearance between the diameter of the first circular plate 3053 and the diameter of the inner side of the first positioning frame 3051 is matched, the clearance between the size of the first sliding block 3054 and the size of the square groove of the first positioning frame 3051 is matched, the clearance between the diameter of the second circular plate 3063 and the diameter of the inner side of the second positioning frame 3061 is matched, the clearance between the size of the second sliding block 3064 and the size of the square groove of the second positioning frame 3061 is matched, circular holes are provided on the front and back sides of the first positioning frame 3051 and the front side of the first circular plate 3053, and circular holes are provided on the front and back sides of the second positioning frame 3061 and the front side of the second circular plate 3063; the circular holes of the first elastic telescopic block 305 and the second elastic telescopic block 306 can ensure effective ventilation of the seat back, facilitate effective heat dissipation of the user's back, and facilitate use by the user.

[0043] In a preferred embodiment, the widths of the first guide rotating block 502 and the second guide rotating block 603 are clearance matched with the width of the guide sliding groove 403, the diameter of the circular rotating groove 404 is tolerance matched with the diameters of the front and back sides of the first guide rotating block 502 and the second guide rotating block 603, and the thickness of the first extended armrest 501 and the second extended armrest 601 is clearance matched with the height of the inner side of the armrest support plate 402.

[0044] In a preferred embodiment, the cross-sectional dimensions of the connecting positioning block 504 are clearance matched with the cross-sectional dimensions of the positioning connecting groove 602, the side of the third friction push block 604 away from the second extended armrest 601 is on the same plane as one side of the second extended armrest 601, the side of the first friction push block 503 away from the first extended armrest 501 is on the same plane as the other side of the first extended armrest 501, the width of the guide push groove 506 is clearance matched with the diameter of the connecting positioning block 504 and the connecting column of the second friction push block 505, the length of the first armrest extension component 5 and the second armrest extension component 6 needs to ensure that the first armrest extension component 5 and the second armrest extension component 6 can rotate relative to the armrest component 4 without colliding with each other, and the connecting positioning block 504 can be inserted into the inner side of the positioning connecting groove 602, and the insertion length is more than one third of the length of the connecting positioning block 504.

[0045] The working principle of the present invention is as follows: when the user is using the backrest, the height of the backrest assembly 3 is adjusted so that the most protruding part of the user's back corresponds to the center positioning block 304. Then, the user's back is continuously pressed against the backrest assembly 3, which causes the center positioning block 304 to move toward the back, and then drives the first sliding block 3054 and the first circular plate 3053 connected to the center positioning block 304 to move toward the back. Then, in the process of the rest of the back approaching the backrest assembly 3, the rest of the first positioning boxes 3051 and the first circular plate 3053 and the first sliding block 3054 connected to the corresponding first positioning boxes 3051, the second positioning boxes 3061 and the second circular plate 3053 connected to the second positioning boxes 3061 are driven. The shape plate 3063 and the second sliding block 3064 move toward the back, and under the action of the first spring 3052 and the rebound force of the first spring 3052, the first elastic expansion block 305 and the second elastic expansion block 306 always have the potential energy to move forward, so that the central positioning block 304, the first elastic expansion block 305 and the second elastic expansion block 306 will be deformed according to the shape of the user's back, and then the backrest soft bag 303 can completely fit the user's back, and because the first elastic expansion block 305 and the second elastic expansion block 306 have the potential energy to move forward, they can provide effective support for the back of the user, and the front side of the connecting plate 302 can completely fit the back of the operator, which is convenient for the operator to use for a long time;

[0046] When the user needs to support his arm, the armrest assembly 4 on both sides of the backrest assembly 3 is rotated so that the angle between the armrest support plate 402 and the armrest positioning plate 401 is ninety degrees, and at the same time the armrest support plate 402 can be supported by the second limit block 7, and the user's arm will be effectively supported by the armrest soft bag 406. When the user operates some operating levers and the user needs to have arm support in front of the user, the user rotates the sealing plate 405 one hundred and eighty degrees along the second rotating axis 409, and then pushes the first extended armrest 501 and the first guide rotating block 502 to move toward the front along the guide sliding groove 403 through the first friction pushing block 503, and then when the first guide rotating block 502 moves into the circular rotating groove 404 on the front, the first guide rotating block 502 rotates along the circular rotating groove 404 The first extended armrest 501 is rotated ninety degrees, and then the same steps are performed to make the angle between the second extended armrest 601 and the armrest support plate 402 ninety degrees, so that the first armrest extension component 5 and the second armrest extension component 6 are in the same straight line, and then the second friction push block 505 is pushed to slide inside the guide push groove 506, and then the connecting positioning block 504 is inserted into the positioning connection groove 602, so that the support can be set up in front of the operator, which is convenient for effectively supporting the user's arm, and the angle between the first armrest extension component 5, the second armrest extension component 6 and the armrest support plate 402 can be adjusted according to actual use to support the user's arm, so that the user can adjust the arm support according to actual use, and the user can adjust the support position according to actual use, which is convenient for the user to operate for a long time.

[0047] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0048] Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0049] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A bulldozer safety seat, comprising a seat assembly (1), characterized in that: A connecting component (2) is installed at the bottom of the seat component (1), a backrest component (3) is movably installed on the outer side of the connecting component (2), armrest components (4) are fixedly installed on both sides of the backrest component (3), a first armrest extension component (5) is movably installed on the inner side of the armrest component (4) on one side of the backrest component (3), a second armrest extension component (6) is movably installed on the inner side of the armrest component (4) on the other side of the backrest component (3), a second limit block (7) is fixedly connected to a side of the armrest component (4) away from the backrest component (3), and the seat component (1) comprises a positioning base plate (101), a lifting component (102) is fixedly connected to the top of the positioning base plate (101), a seat cushion positioning plate (103) is fixedly connected to the top of the lifting component (102), and a seat cushion main body (104) is fixedly connected to the top of the seat cushion positioning plate (103); The backrest assembly (3) comprises a lifting slider (301), the bottom of the lifting slider (301) is fixedly connected to a connecting plate (302), the front of the lifting slider (301) is fixedly connected to a backrest soft bag (303), the back of the backrest soft bag (303) is fixedly connected to a central positioning block (304), the top, bottom and both sides of the central positioning block (304) are fixedly connected to first elastic telescopic blocks (305), both sides of the first elastic telescopic blocks (305) are fixedly connected to second elastic telescopic blocks (306), the top, bottom and both sides of the central positioning block (304) are arranged in strips and in a cross shape with the central positioning block (304), and the second elastic telescopic blocks (306) are distributed in an array in four spaces divided into a cross shape by the central positioning block (304) and the first elastic telescopic blocks (305); The first elastic telescopic block (305) comprises a first positioning frame (3051), a square groove is provided on one side of the first positioning frame (3051) close to the central positioning block (304), a first spring (3052) is fixedly connected to the inner side of the first positioning frame (3051), a first circular plate (3053) is fixedly connected to the front side of the first spring (3052), a first circular plate (3053) is fixedly connected to the first sliding block (3054) on one side of the first circular plate (3053) where the square groove of the first positioning frame (3051) is provided, and the second elastic telescopic block (306) comprises a second positioning frame (3051) and a first sliding block (3054) is fixedly connected to the first circular plate (3053). The second positioning square frame (3061) is provided with square grooves on both sides close to the first elastic telescopic block (305); a second spring (3062) is fixedly connected to the inner side of the second positioning square frame (3061); a second circular plate (3063) is fixedly connected to the front side of the second spring (3062); the second circular plate (3063) is fixedly connected to the second sliding block (3064) on both sides of the square groove of the second positioning square frame (3061); and the inner side of the lifting slider (301) is provided with a structure similar to that inside the second elastic telescopic block (306).

2. A bulldozer safety seat according to claim 1, characterized in that: The connection assembly (2) comprises a U-shaped positioning rod (201), the back of the U-shaped positioning rod (201) being fixedly connected to an L-shaped positioning rod (202), the bottoms of both sides of the U-shaped positioning rod (201) being fixedly connected to first positioning assemblies (203), and the front of the bottom of the first positioning assembly (203) being fixedly connected to a second positioning assembly (204).

3. The bulldozer safety seat according to claim 1, characterized in that: The armrest assembly (4) comprises an armrest positioning plate (401), a first rotating shaft (407) being fixedly connected to a side of the armrest positioning plate (401) away from the backrest assembly (3), an armrest support plate (402) being movably mounted on the outer side of the first rotating shaft (407), a guide sliding groove (403) being provided at the top and bottom of the armrest support plate (402), a circular rotating groove (404) being provided at the front and back of the guide sliding groove (403), and the armrest support plate (402) being movably mounted on the outer side of the first rotating shaft (407). ) is fixedly connected to the top of an armrest soft bag (406), the front of the armrest support plate (402) is fixedly connected to a second rotating shaft (409), the front of the second rotating shaft (409) is fixedly connected to a positioning cap (4011), the outer side of the second rotating shaft (409) is movably sleeved with a sealing plate (405), the front of the sealing plate (405) is fixedly connected to a torque spring (4010), and the bottom of the front of the armrest support plate (402) is fixedly connected to a first limit block (408).

4. A bulldozer safety seat according to claim 3, characterized in that: The first armrest extension component (5) comprises a first extension armrest (501), the top and bottom of the first extension armrest (501) are both fixedly connected to a first guide rotation block (502), a first friction push block (503) is fixedly connected to the front side of the first extension armrest (501) close to the armrest positioning plate (401), a connection positioning block (504) is movably connected to the inner side of the first extension armrest (501), a second friction push block (505) is fixedly connected to the side of the connection positioning block (504) away from the armrest positioning plate (401), and a guide push groove (506) is provided on the side of the first extension armrest (501) away from the armrest positioning plate (401).

5. The bulldozer safety seat according to claim 4, characterized in that: The second armrest extension assembly (6) comprises a second extended armrest (601), a positioning connection groove (602) is provided on the front of the second extended armrest (601), the top and bottom of the second extended armrest (601) are fixedly connected to second guide rotation blocks (603), and a third friction push block (604) is fixedly connected to the front of the second extended armrest (601) on the side close to the armrest positioning plate (401).

6. The bulldozer safety seat according to claim 1, characterized in that: The diameter of the first circular plate (3053) is clearance matched with the diameter of the inner side of the first positioning frame (3051), the size of the first sliding block (3054) is clearance matched with the size of the square groove of the first positioning frame (3051), the diameter of the second circular plate (3063) is clearance matched with the diameter of the inner side of the second positioning frame (3061), the size of the second sliding block (3064) is clearance matched with the size of the square groove of the second positioning frame (3061), the front and back sides of the first positioning frame (3051) and the front side of the first circular plate (3053) are both provided with circular holes, and the front and back sides of the second positioning frame (3061) and the front side of the second circular plate (3063) are both provided with circular holes.

7. The bulldozer safety seat according to claim 4, characterized in that: The widths of the first guide rotating block (502) and the second guide rotating block (603) are both clearance matched with the width of the guide sliding groove (403); the diameter of the circular rotating groove (404) is tolerance matched with the diameters of the front and back sides of the first guide rotating block (502) and the second guide rotating block (603); and the thickness of the first extended armrest (501) and the second extended armrest (601) is clearance matched with the height of the inner side of the armrest support plate (402).

8. The bulldozer safety seat according to claim 5, characterized in that: The cross-sectional dimensions of the connection positioning block (504) and the cross-sectional dimensions of the positioning connection groove (602) are clearance matched, the side of the third friction push block (604) away from the second extended armrest (601) and the side of the second extended armrest (601) are on the same plane, the side of the first friction push block (503) away from the first extended armrest (501) and the other side of the first extended armrest (501) are on the same plane, and the width of the guide push groove (506) and the diameter of the connection positioning block (504) and the second friction push block (505) connection column are clearance matched.

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