Fire-fighting robot

Abstract

The utility model discloses a fire-fighting robot which comprises a frame and a rubber track, one side of the frame is fixedly connected with a pair of mounting plates, the pair of mounting plates is provided with first limiting holes, a shaft rod is slidably connected in the first limiting holes, and the shaft rod is fixedly connected with a pair of first limiting blocks. First limiting grooves matched with the pair of first limiting blocks are formed in a pair of inner side walls of the first limiting hole, the walking path of the first limiting blocks in the first limiting grooves is matched with the walking path of the shaft rod in the first limiting hole, and the shaft rod is sleeved with a driven wheel matched with the rubber track. A limiting structure matched with the shaft rod is arranged on the mounting plate and used for limiting the position of the shaft rod. Compared with the prior art, the rubber track dismounting device has the advantages that the rubber track can be dismounted conveniently, quickly and simply, the rubber track with weakened elasticity can be tensioned again for use, the replacement frequency of the rubber track can be reduced to a certain extent, and the replacement cost of the rubber track can be reduced conveniently.

Description

Technical Field

[0001] The utility model belongs to the technical field of fire-fighting robots, in particular to a fire-fighting robot. Background Art

[0002] New energy vehicles often spontaneously combust due to thermal runaway of their power batteries. In such cases, firefighting robots are often required to penetrate deep under the vehicle to extinguish the fire at the point of fire. In the prior art, firefighting robots generally use rubber tracks in order to reduce costs and keep the weight of the body light. In actual use, the chemicals produced by the combustion of new energy vehicles will adhere to the rubber tracks of the firefighting robots, accelerating the aging of the mobile rubber tracks, and the high temperature generated by the combustion of new energy vehicles will also cause the rubber tracks to soften and fail. Therefore, after the fire is extinguished, firefighters often have to dismantle, maintain or replace the rubber tracks. Although rubber tracks are elastic, disassembling them is still troublesome and laborious, and existing firefighting robots cannot re-tighten rubber tracks that have weakened in elasticity, resulting in a high cost for replacing rubber tracks.

[0003] Therefore, in response to the above technical problems, it is necessary to provide a fire-fighting robot. Utility Model Content

[0004] The purpose of the present utility model is to provide a fire-fighting robot that can solve the above-mentioned problems.

[0005] In order to achieve the above-mentioned purpose, the technical solution provided by a specific embodiment of the present invention is as follows:

[0006] A fire-fighting robot includes a frame and a rubber track. A pair of mounting plates are fixedly connected to one side of the frame. A first limiting hole is provided on each of the mounting plates. A shaft rod is slidably connected in the first limiting hole. A pair of first limiting blocks are fixedly connected to the shaft rod. A pair of inner side walls of the first limiting hole are provided with first limiting grooves matching the pair of first limiting blocks. The walking path of the first limiting block in the first limiting groove matches the walking path of the shaft rod in the first limiting hole. A driven wheel matching the rubber track is sleeved on the shaft rod. A limiting structure matching the shaft rod is provided on the mounting plate. The limiting structure is used to limit the position of the shaft rod.

[0007] In one or more embodiments of the present invention, a second limiting hole matching the limiting structure is provided on the mounting plate.

[0008] In one or more embodiments of the present invention, the limiting structure includes a screw rod, both ends of which pass through the second limiting hole and are located on the outside of the mounting plate, a bearing matching the driven wheel and the rubber track is sleeved on the screw rod, a limiting ring matching the bearing is provided between the bearing and the mounting plate, and a nut is threadedly connected to the screw rod.

[0009] In one or more embodiments of the present invention, a first compression spring is provided in the second limiting hole, one end of the first compression spring is in contact with the screw rod, and the other end of the first compression spring is fixedly connected to the inner side wall of the second limiting hole.

[0010] In one or more embodiments of the present invention, a first compression spring is arranged in the second limiting hole, one end of the first compression spring is fixedly connected to a first connecting piece matching the screw rod, and the other end of the first compression spring is fixedly connected to the inner side wall of the second limiting hole.

[0011] In one or more embodiments of the present invention, the width of the contact point between the bearing and the driven wheel is not less than one third of the width of the driven wheel.

[0012] In one or more embodiments of the present invention, a gasket is provided between the nut and the mounting plate.

[0013] In one or more embodiments of the present invention, a second connecting member matching the shaft rod is slidably connected in the first limiting hole, a pair of second limiting blocks matching the first limiting groove are fixedly connected to the second connecting member, the walking path of the second limiting block in the first limiting groove matches the walking path of the shaft rod in the first limiting hole, a second compression spring is fixedly connected to one end of the second connecting member away from the shaft rod, and the end of the second compression spring not fixedly connected to the second connecting member is fixedly connected to the hole wall of the first limiting hole.

[0014] In one or more embodiments of the present invention, a second connecting member matching the shaft rod is slidingly connected in the first limiting hole, a pair of second limiting blocks matching the first limiting groove is fixedly connected to the second connecting member, the walking path of the second limiting block in the first limiting groove matches the walking path of the shaft rod in the first limiting hole, a second compression spring is fixedly connected to the end of the second connecting member away from the shaft rod, a third limiting hole matching the second compression spring is opened on the inner side wall of the first limiting hole, and the end of the second compression spring not fixedly connected to the second connecting member is fixedly connected to the hole wall of the third limiting hole.

[0015] In one or more embodiments of the present invention, one end of the shaft away from the rubber track is fixedly connected to a handle.

[0016] Compared with the prior art, the utility model is convenient for quick and simple disassembly of the rubber crawler, and the rubber crawler with weakened elasticity can be tightened and reused, which can reduce the number of times the rubber crawler is replaced to a certain extent and facilitate reducing the replacement cost of the rubber crawler. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a structural diagram of the first embodiment of the present invention;

[0019] Figure 2 In one embodiment of the present utility model Figure 1 Schematic diagram of the structure at A in the middle;

[0020] Figure 3 This is an exploded view of the limiting assembly in the first embodiment of the present utility model;

[0021] Figure 4 This is a first structural diagram of the mounting plate and the limiting assembly in the first embodiment of an embodiment of the present utility model;

[0022] Figure 5 This is a second structural diagram of the mounting plate and the limiting assembly in the first embodiment of an embodiment of the present utility model;

[0023] Figure 6 In one embodiment of the present utility model Figure 5 AA section view in;

[0024] Figure 7 This is a half-section view of the mounting plate in the first embodiment of the present utility model;

[0025] Figure 8 This is a structural diagram of the first shaft in the first embodiment of an embodiment of the present invention;

[0026] Figure 9 This is a structural diagram of a second embodiment of the present invention;

[0027] Figure 10 In one embodiment of the present utility model Figure 9 Schematic diagram of the structure at B in the middle;

[0028] Figure 11 A half-section view of a mounting plate and a limiting assembly in a second embodiment of an embodiment of the present invention;

[0029] Figure 12 This is a half-section view of the mounting plate in the second embodiment of one embodiment of the present invention.

[0030] Description of main reference numerals:

[0031] 00-frame, 1-rubber track, 2-mounting plate, 201-first limiting hole, 202-first limiting groove, 203-second limiting hole, 204-third limiting hole, 3-axis, 301-first limiting block, 4-driven wheel, 5-screw, 6-bearing, 7-limiting ring, 8-first connecting piece, 9-first compression spring, 10-gasket, 11-nut, 12-second connecting piece, 121-second limiting block, 13-second compression spring, 14-handle. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the following will be combined with the drawings of the embodiments of the present invention to clearly and completely describe the technical solutions of the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0033] Example 1:

[0034] like Figure 1 As shown, a fire-fighting robot in one embodiment of the present invention includes a frame 00 and a rubber track 1. The rubber track 1 is sleeved on a driving wheel and a driven wheel 4 to realize the movement of the fire-fighting robot.

[0035] like Figure 1 、 Figure 2 As shown, a pair of mounting plates 2 are welded to one side of the frame 00, and a first limiting hole 201 is opened on the pair of mounting plates 2. A shaft rod 3 is inserted into the first limiting hole 201, and a driven wheel 4 matching the rubber track 1 is sleeved on the shaft rod 3. The rubber track 1 is sleeved on the driving wheel to realize the movement of the fire-fighting robot.

[0036] like Figure 7 、 Figure 8 As shown, in order to limit the sliding of the shaft 3 along the axial direction, a pair of first limiting blocks 301 are welded on the shaft 3, and a pair of inner side walls of the first limiting hole 201 are provided with first limiting grooves 202 matching the pair of first limiting blocks 301.

[0037] like Figure 1 、 Figure 7 、 Figure 8As shown, in order to enable the driven wheel 4 to slide in a direction perpendicular to the axis of the shaft 3 to facilitate adjustment of the tension and loosening of the rubber track 1, the shaft 3 can slide in the first limiting hole 201 in a direction perpendicular to the axis of the shaft 3. The sliding direction of the first limiting block 301 in the first limiting groove 202 is consistent with the sliding direction of the shaft 3 in the first limiting hole 201. The mounting plate 2 is provided with a limiting mechanism that can limit the position of the shaft 3. By adjusting the limiting mechanism, the position of the shaft 3 can be adjusted, thereby adjusting the position of the driven wheel 4. When the driven wheel 4 moves away from the driving wheel, the rubber track 1 can be tightened, and when the driven wheel 4 moves toward the driving wheel, the rubber track 1 can be loosened.

[0038] like Figures 2 to 7 As shown, the limiting mechanism includes a second limiting hole 203 defined in the mounting plate 2. A screw 5 is inserted into the second limiting hole 203. Both ends of the screw 5 extend through the second limiting hole 203 and are located outside the mounting plate 2. A nut 11 is threadedly connected to the screw 5. This threaded connection allows for replacement of the limiting mechanism components. A bearing 6 is sleeved onto the screw 5. The inner ring of the bearing 6 contacts the surface of the screw 5, and the outer ring of the bearing 6 contacts the driven wheel 4.

[0039] Specifically, the line width at the point of contact between the bearing 6 and the driven wheel 4 is no less than one-third of the width of the driven wheel 4, ensuring that the central axis of the bearing 6 is parallel to the central axis of the driven wheel 4. This ensures, to a certain extent, that the driven wheel 4 is aligned with the limiting mechanism, facilitating the coordinated rotation of the driven wheel 4 and the bearing 6. If the limiting mechanism is offset, the bearing 6 and the driven wheel 4 may only have a single point of contact. The force transmitted from the tension of the rubber track 1 to the limiting mechanism acts on this contact point, potentially preventing the synchronous rotation of the driven wheel 4 and the bearing 6, and may even damage the limiting mechanism, rendering the firefighting robot inoperable.

[0040] like Figure 5 As shown, to limit the sliding of bearing 6 on screw 5, a limit ring 7 is installed between bearing 6 and mounting plate 2. Limit ring 7 is also sleeved onto screw 5. Specifically, one end of limit ring 7 contacts mounting plate 2, while the other end contacts bearing 6. Limit ring 7 does not interfere with the rotation of bearing 6. In other words, the sliding of bearing 6 on screw 5 away from mounting plate 2 is blocked by the head of screw 5, while the sliding of bearing 6 on screw 5 toward mounting plate 2 is blocked by limit ring 7.

[0041] like Figure 2 、 Figure 3 、 Figure 7As shown, a first compression spring 9 is provided in the second limiting hole 203, one end of the first compression spring 9 is welded to a first connecting piece 8, and the other end of the first compression spring 9 is welded to the inner wall of the second limiting hole 203. One end of the first connecting piece 8 is in a ring shape, which can achieve a good fit with the screw 5. In this way, when it is necessary to disassemble or adjust the tightness of the rubber track, there is no need to unscrew the nut 11. Just slightly loosen the nut 11 to allow the screw 5 to slide in the second limiting hole 203. By pushing the screw 5 in the direction of compressing the first compression spring 9, the position of the driven wheel 4 can be adjusted, and then the rubber track can be adjusted. The elastic force of the first compression spring 9 can also ensure that the bearing 6 is in good contact with the driven wheel 4, which ensures the normal operation of the limiting mechanism to a certain extent and will not affect the normal use of the fire-fighting robot.

[0042] like Figure 3 、 Figure 5 As shown, in order to prevent the screw 5 and the nut 11 from working together to cause greater wear and reduce the strength of the mounting plate 2, a gasket 10 is provided between the nut 11 and the mounting plate 2.

[0043] During use, when it is necessary to disassemble or adjust the tightness of the rubber track 1, loosen the nut 11 or unscrew the nut 11 so that the screw 5 can slide in the second limiting hole 203, and the position of the driven wheel 4 can be adjusted by pushing the screw 5 in the direction of compressing the first compression spring 9, and then the rubber track 1 loosens and falls off, and then it can be replaced or maintained.

[0044] Example 2:

[0045] like Figures 9-12 As shown, the second connecting member 12 is placed in the first limiting hole 201 and can slide in the first limiting hole 201 in a direction perpendicular to the central axis of the shaft 3. One end of the second connecting member 12 is ring-shaped, matching the surface shape of the shaft 3, facilitating the effective tightening of the second connecting member 12. A third limiting hole 204 is defined on the inner sidewall of the first limiting hole 201. A second compression spring 13 is welded to the end of the second connecting member 12 away from the shaft 3. The end of the second compression spring 13 not welded to the second connecting member 12 is welded to the third limiting hole 204.

[0046] The second compression spring 13 does not affect the normal operation of the firefighting robot. The position of the driven wheel 4 can be adjusted by adjusting the position of the shaft 3, thereby generating a more appropriate compression force on the second compression spring 13 in conjunction with the rubber track 1. When the rubber track 1 loses its elasticity, the rebound force of the second compression spring 13 can re-tighten the lost rubber track 1 to continue the normal operation of the firefighting robot.

[0047] like Figure 11As shown, in order to limit the sliding of the second connecting member 12 in a direction parallel to the axis of the shaft rod 3 and thus ensure the normal operation of the second connecting member 12, a pair of second limiting blocks 121 that match the first limiting groove 202 are welded to the second connecting member 12. The walking path of the second limiting block 121 in the first limiting groove 202 is consistent with the walking path of the shaft rod 3 in the first limiting hole 201. Specifically, in order to reduce the friction generated by the sliding of the second connecting member 12 in the first limiting hole 201 and facilitate the disassembly of the rubber track 1, the height of a second limiting block 121 is less than the height of a first limiting groove 202, that is, only two surfaces of a second limiting block 121 are in contact with the groove wall of a first limiting groove 202. Compared with the three surfaces of a second limiting block 121 in contact with the groove wall of a first limiting groove 202, the friction generated by the sliding of the second connecting member 12 is reduced.

[0048] like Figure 10 As shown, in order to facilitate the firefighter to compress the second compression spring 13 and move the shaft rod 3 to remove the rubber track 1 , a handle 14 is welded to one end of the shaft rod 3 away from the rubber track 1 .

[0049] During use, the position of the shaft 3 can be adjusted to adjust the position of the driven wheel 4, thereby cooperating with the rubber track 1 to generate a more appropriate compression force on the second compression spring 13. When the rubber track 1 of the firefighting robot loses its elasticity, the rebound force of the second compression spring 13 can re-tighten the lost rubber track 1 to continue normal use of the firefighting robot. When the rubber track 1 is removed, the firefighter grabs the handle 14 and pushes the shaft 3 in the direction of compressing the second compression spring 13, loosening the rubber track 1 and then removing it for replacement or maintenance.

[0050] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0051] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A firefighting robot comprising a frame and rubber tracks, characterized in that: A pair of mounting plates are fixedly connected to one side of the frame, and a first limiting hole is provided on each of the mounting plates. A shaft rod is slidably connected in the first limiting hole, and a pair of first limiting blocks are fixedly connected to the shaft rod. A pair of inner side walls of the first limiting hole are provided with a first limiting groove matching the pair of first limiting blocks, and the walking path of the first limiting block in the first limiting groove matches the walking path of the shaft rod in the first limiting hole. A driven wheel matching the rubber track is sleeved on the shaft rod, and a limiting structure matching the shaft rod is provided on the mounting plate, and the limiting structure is used to limit the position of the shaft rod.

2. A firefighting robot according to claim 1, characterized in that: The mounting plate is provided with a second limiting hole matching the limiting structure.

3. A firefighting robot according to claim 2, characterized in that: The limiting structure includes a screw rod, both ends of which pass through the second limiting hole and are located on the outside of the mounting plate. A bearing matching the driven wheel and the rubber track is sleeved on the screw rod, and a limiting ring matching the bearing is provided between the bearing and the mounting plate. A nut is threadedly connected to the screw rod.

4. A firefighting robot according to claim 3, characterized in that: A first compression spring is provided in the second limiting hole, one end of the first compression spring is in contact with the screw rod, and the other end of the first compression spring is fixedly connected to the inner side wall of the second limiting hole.

5. The firefighting robot according to claim 4, characterized in that: One end of the first compression spring is fixedly connected to a first connecting piece that matches the screw rod.

6. A firefighting robot according to claim 4 or 5, characterized in that: The width of the contact point between the bearing and the driven wheel is not less than one third of the width of the driven wheel.

7. A firefighting robot according to claim 4 or 5, characterized in that: A gasket is provided between the nut and the mounting plate.

8. The firefighting robot according to claim 1, characterized in that: A second connecting piece matching the shaft rod is slidingly connected in the first limiting hole, and a pair of second limiting blocks matching the first limiting groove are fixedly connected to the second connecting piece. The walking path of the second limiting block in the first limiting groove matches the walking path of the shaft rod in the first limiting hole. A second compression spring is fixedly connected to the end of the second connecting piece away from the shaft rod, and the end of the second compression spring not fixedly connected to the second connecting piece is fixedly connected to the hole wall of the first limiting hole.

9. The firefighting robot according to claim 1, characterized in that: A second connecting piece matching the shaft rod is slidingly connected in the first limiting hole, a pair of second limiting blocks matching the first limiting groove is fixedly connected to the second connecting piece, the walking path of the second limiting block in the first limiting groove matches the walking path of the shaft rod in the first limiting hole, a second compression spring is fixedly connected to the end of the second connecting piece away from the shaft rod, a third limiting hole matching the second compression spring is opened on the inner side wall of the first limiting hole, and the end of the second compression spring not fixedly connected to the second connecting piece is fixedly connected to the hole wall of the third limiting hole.

10. A firefighting robot according to claim 8 or 9, characterized in that: One end of the shaft rod away from the rubber track is fixedly connected with a handle.

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