Liquid storage tank mechanism and unmanned vehicle

By setting fixing holes on the liquid storage tank and using support rods for fixation, the problem of damage to the liquid storage tank under heavy load, bumps, or tilting conditions is solved, and the structural strength and fixation stability are enhanced.

CN122139721APending Publication Date: 2026-06-05GUANGZHOU XAIRCRAFT TECH CO LTD
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Patent Information

Application Number
CN202411716521.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-27
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

The existing liquid storage tanks of unmanned vehicles have high requirements for wall thickness when fixedly connected, and the structural strength is insufficient, making them easy to be damaged under heavy load, bumps or tilting conditions.

Method used

A through-hole is provided on the liquid storage tank, which is then fixed by a support rod. The side wall of the fixing hole is used to increase the structural strength and prevent collapse. At the same time, the inner wall of the fixing hole hinders the surge of the liquid.

Benefits of technology

The structural strength of the liquid storage tank was improved, preventing collapse and reducing liquid surge, thus enhancing the stability of the tank.

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Abstract

The application discloses a liquid storage tank mechanism and an unmanned vehicle. The liquid storage tank mechanism comprises a liquid storage tank, a mounting bracket and a supporting rod. The liquid storage tank is provided with a fixing hole formed by a tank wall. The mounting bracket supports the liquid storage tank at the bottom. The supporting rod is arranged on the mounting bracket and extends into the fixing hole to limit and fix the liquid storage tank. The fixing hole is arranged on the liquid storage tank. On one hand, the supporting rod extending into the fixing hole can fix the liquid storage tank. On the other hand, the structure strength of the liquid storage tank is increased. The side wall of the fixing hole can support the liquid storage tank, so that the liquid storage tank is prevented from collapsing due to insufficient strength. Meanwhile, the inner wall of the fixing hole has an anti-surge effect in the liquid storage tank. When liquid in the liquid storage tank forms a surge, the surge can be hindered by the fixing hole, so that the surge is reduced.
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Description

Technical Field

[0001] This application relates to the field of agricultural autonomous driving equipment technology, and in particular to a liquid storage tank mechanism and an unmanned vehicle with a liquid storage tank mechanism. Background Technology

[0002] With the continuous development of the agricultural industry and the increasing emphasis placed on agriculture by the state, agricultural mechanization has gradually become widespread in some parts of my country. Traditional mechanized farming requires significant labor costs, and as labor costs continue to rise, autonomous driving technology is also being applied in the field of agricultural machinery.

[0003] Some existing unmanned vehicles are equipped with liquid storage tanks for spraying pesticides or watering crops. In operation, the liquid storage tank needs to be fixed to the unmanned vehicle. The existing fixing method is to fix the structure to the wall of the liquid storage tank. This method has high requirements for the wall thickness of the liquid storage tank at the connection point. If the structural strength of the liquid storage tank is insufficient, this fixing method is prone to damage to the liquid storage tank under heavy load, bumps and tilting conditions. Summary of the Invention

[0004] The purpose of this application is to provide a liquid storage tank mechanism and an unmanned vehicle, which can solve the above-mentioned problems existing in the prior art.

[0005] To achieve the above objectives, this application adopts the following technical solution:

[0006] On the one hand, a liquid storage tank mechanism is provided, comprising:

[0007] A liquid storage tank, which is provided with fixing holes formed by the enclosure of the tank wall;

[0008] Mounting brackets support the liquid storage tank at the bottom;

[0009] The mounting bracket is equipped with a support rod, which extends into the fixing hole to limit and fix the liquid storage tank.

[0010] Optionally, the fixing hole is a blind hole, provided on the surface of the liquid storage tank facing the mounting bracket.

[0011] Optionally, the liquid storage tank has a first surface and a second surface opposite to each other, and a receiving space is formed between the first surface and the second surface; the fixing hole penetrates the liquid storage tank and connects the first surface and the second surface, and the first surface abuts against the mounting bracket.

[0012] Optionally, there are multiple fixing holes, which are evenly distributed on the liquid storage tank.

[0013] Optionally, the first surface is formed with a mounting groove, and the mounting bracket is provided with a mounting guide rail corresponding to the mounting groove. The liquid storage tank can move along the length direction of the mounting bracket when the mounting groove and the mounting guide rail cooperate.

[0014] Optionally, the mounting guide rail is provided with a T-slot, and a T-shaped limiting block is provided at the bottom of the mounting groove. The T-shaped limiting block can be engaged in the T-slot and slide in the T-slot.

[0015] Optionally, the mounting groove is provided with a mounting hole, and the T-shaped limiting block is engaged in the mounting hole.

[0016] Optionally, the fixing hole has a hole sidewall, and the position where the hole sidewall connects with the first surface and the second surface is provided with a transition fillet.

[0017] Optionally, it also includes a buffer pad, which is sleeved on the support rod and located between the fixing hole and the support rod.

[0018] Optionally, the support rod has a first connecting end and a second connecting end that are opposite to each other. A first limiting part is provided on the side of the first connecting end, and a second limiting part is provided on the mounting bracket. The support rod is limited relative to the mounting bracket by the cooperation of the first limiting part and the second limiting part.

[0019] Optionally, the mounting bracket is provided with a mounting clamp, and the support rod passes through the mounting clamp and the mounting bracket.

[0020] Optionally, the first limiting part is a limiting protrusion provided on the first connecting end, and the second limiting part is a limiting hole provided on the mounting clamp.

[0021] Optionally, a support protrusion is provided at the middle of the first surface along the length direction of the mounting bracket, and the mounting groove is provided on the support protrusion.

[0022] Optionally, a support platform is provided on the second surface and on one side of the fixing hole. A connecting plate is provided on the support platform, one end of which is fixedly connected to the support platform and the other end of which is fixedly connected to the support rod.

[0023] Optionally, the cross-sectional area of ​​the fixing hole gradually decreases and then gradually increases from top to bottom.

[0024] Optionally, a conical platform is provided on the outer side of the support rod, and the conical platform mates with the inner wall of the fixing hole.

[0025] On the other hand, an unmanned vehicle is provided, which has a liquid storage tank installed using the liquid storage tank mechanism described above.

[0026] The beneficial effects of this application are as follows: by providing a through fixing hole on the liquid storage tank, on the one hand, the liquid storage tank can be fixed by a support rod extending into the fixing hole, and on the other hand, the structural strength of the liquid storage tank can be increased. The side wall of the fixing hole can support the liquid storage tank and prevent the liquid storage tank from collapsing due to insufficient strength. At the same time, the inner wall of the fixing hole has a surge protection function inside the liquid storage tank. When the liquid inside the liquid storage tank forms a surge, it can be blocked by the fixing hole, thereby reducing the surge. Attached Figure Description

[0027] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0028] Figure 1 This is a schematic diagram of the liquid storage tank structure described in the embodiments of this application.

[0029] Figure 2 This is another schematic diagram of the liquid storage tank structure described in the embodiments of this application;

[0030] Figure 3 This is another schematic diagram of the liquid storage tank structure described in the embodiments of this application;

[0031] Figure 4 This is a cross-sectional view of the liquid storage tank structure described in the embodiment of this application;

[0032] Figure 5 This is a schematic diagram of the liquid storage tank installed on the mounting bracket according to an embodiment of this application;

[0033] Figure 6 This is a top view of the liquid storage tank installed on the mounting bracket according to an embodiment of this application;

[0034] Figure 7 This is a side view of the liquid storage tank installed on the mounting bracket according to an embodiment of this application;

[0035] Figure 8 This is a three-dimensional structural diagram of the liquid storage tank installed on the mounting bracket according to an embodiment of this application;

[0036] Figure 9 This is an exploded view of the liquid storage tank installed on the mounting bracket according to an embodiment of this application.

[0037] Figure 10 This is a schematic diagram of the three-dimensional structure of the connecting plate described in the embodiment of this application;

[0038] Figure 11 for Figure 9 Enlarged view of a section at point I;

[0039] Figure 12This is a three-dimensional structural diagram of the fog cannon and liquid storage tank installed on the mounting bracket according to an embodiment of this application;

[0040] Figure 13 for Figure 12 Enlarged view of section II in the middle;

[0041] Figure 14 This is a schematic diagram of another form of the structure of the liquid storage tank and the support rod described in the embodiment of this application.

[0042] In the picture:

[0043] 100. Mounting bracket; 110. Mounting clamp; 111. Second limiting part; 120. Mounting guide rail; 121. T-slot; 200. Liquid storage tank; 210. Fixing hole; 220. First surface; 221. Mounting groove; 2211. Mounting hole; 222. T-slot limiting block; 223. Hole sidewall; 224. Transition fillet; 230. Second surface; 231. Support platform; 300. Support rod; 310. First connecting end; 311. First limiting part; 320. Second connecting end; 400. Connecting plate; 410. Through hole. Detailed Implementation

[0044] To make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0045] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0046] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0047] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and other orientations or positional relationships are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no special meaning.

[0048] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0049] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0050] Some existing unmanned vehicles are equipped with liquid storage tanks for spraying pesticides or watering crops. In operation, the liquid storage tank needs to be fixed to the unmanned vehicle. The existing fixing method is to fix the structure to the wall of the liquid storage tank. This method has high requirements for the wall thickness of the liquid storage tank at the connection point. If the structural strength of the liquid storage tank is insufficient, this fixing method is prone to damage to the liquid storage tank under heavy load, bumps and tilting conditions.

[0051] To solve the above problems, refer to Figure 1-13 As shown, this application embodiment provides a liquid storage tank mechanism, including:

[0052] A liquid storage tank 200 is provided with a fixing hole 210 formed by the enclosure of the tank wall of the liquid storage tank 200;

[0053] Mounting bracket 100 supports the liquid storage tank 200 at the bottom;

[0054] The mounting bracket 100 is provided with a support rod 300, which extends into the fixing hole 210 to limit and fix the liquid storage tank 200.

[0055] By providing a through fixing hole 210 on the liquid storage tank 200, the liquid storage tank 200 can be fixed by the support rod 300 extending into the fixing hole 210. On the other hand, the structural strength of the liquid storage tank 200 can be increased. The side wall of the fixing hole 210 can support the liquid storage tank 200 and prevent the liquid storage tank 200 from collapsing due to insufficient strength. At the same time, the inner wall of the fixing hole 210 has a surge protection function inside the liquid storage tank 200. When the liquid inside the liquid storage tank 200 forms a surge, it can be blocked by the fixing hole 210, thereby reducing the surge.

[0056] The liquid storage tank 200 described in this embodiment further includes a liquid storage tank cover and a liquid outlet connector. The top of the liquid storage tank 200 is provided with a liquid storage tank inlet. The liquid storage tank cover can cooperate with the liquid storage tank inlet to selectively open or close the liquid storage tank inlet. The liquid storage tank inlet is provided with external threads, and the liquid storage tank cover is provided with internal threads. The liquid storage tank cover can be screwed onto the liquid storage tank inlet through threaded engagement. The bottom of the liquid storage tank 200 is provided with a liquid storage tank outlet, and the liquid outlet connector is connected to the liquid storage tank outlet.

[0057] The fixing hole 210 described in this application can take various forms. For example, in an optional embodiment, referring to... Figure 14 As shown, the fixing hole 210 is a blind hole. By setting a blind hole as the fixing hole 210, the side wall of the blind hole can be used for limiting and fixing, and the bottom wall of the blind hole can be used for support.

[0058] It is understood that the bottom wall of the aforementioned blind hole can be used for support and is not intended to limit this solution. In actual use, the depth of the blind hole can be set to be greater than the length of the support rod 300, so that the support rod 300 does not contact the bottom wall of the blind hole, which serves as the fixing hole 210, and only supports the liquid storage tank through the first surface 220.

[0059] For example, as another alternative implementation, refer to Figure 4 As shown, the fixing hole 210 is a through hole penetrating the liquid storage tank 200. The through hole allows the support rod 300 to be fully inserted, which can maximize the stability of the support rod when inserted into the fixing hole 210.

[0060] Specifically, refer to Figure 1-3As shown, in this embodiment of the application, the liquid storage tank 200 has a first surface 220 and a second surface 230 opposite to each other, and a receiving space is formed between the first surface 220 and the second surface 230; the fixing hole 210 penetrates the liquid storage tank 200 in a direction perpendicular to the first surface 220, connects the first surface 220 and the second surface 230, and the first surface 220 abuts against the mounting bracket 100.

[0061] As a preferred technical solution, there are multiple fixing holes 210, which are evenly distributed on the liquid storage tank 200.

[0062] When there are multiple fixing holes 210, the structure of all fixing holes 210 can be the same or different. For example, all fixing holes 210 can be two different sizes of fixing holes 210, and fixing holes 210 of the same size are evenly and symmetrically distributed along the center line of the length direction of the liquid storage tank 200.

[0063] Preferred, refer to Figure 1-3 As shown, in this embodiment of the application, there are four fixing holes 210 of the same specification, and the four fixing holes 210 are symmetrically distributed in pairs along the center line of the length direction of the liquid storage tank 200.

[0064] It is understood that having multiple fixing holes 210 is not a limitation of this solution. In other embodiments of this application, a solution with only one fixing hole 210 can also be used. When there is only one fixing hole 210, it is necessary to place the fixing hole 210 at the geometric center of the liquid storage tank 200 as much as possible, and to avoid making the shape of the fixing hole 210 a rotating body structure. When there is only one fixing hole 210, placing the fixing hole 210 at the geometric center of the liquid storage tank 200 can ensure the force balance when fixing the liquid storage tank 200 through the fixing hole 210, avoiding problems such as tilting of the liquid storage tank 200 due to uneven force, and deformation and damage to the fixing hole 210 due to excessive load. At the same time, making the fixing hole 210 a non-rotating body structure can prevent the liquid storage tank 200 from rotating around the circumference of the fixing hole 210.

[0065] Furthermore, refer to Figure 3 As shown in the embodiment of this application, an installation groove 221 is formed on the first surface 220, and an installation guide rail 120 is provided on the mounting bracket 100 corresponding to the installation groove 221. The liquid storage tank 200 can move along the length direction of the mounting bracket 100 when the installation groove 221 and the installation guide rail 120 cooperate.

[0066] In this application, the liquid storage tank 200 and the mounting bracket 100 are pre-positioned by the mounting groove 221 cooperating with the mounting guide rail 120, so that the liquid storage tank 200 is stuck on the mounting bracket 100 and is limited in the width direction of the mounting bracket 100. The installation position in this direction can be adjusted by sliding along the length direction of the mounting bracket 100, so that the fixing hole 210 on the liquid storage tank 200 corresponds to the installation position on the mounting bracket 100.

[0067] Specifically, refer to Figure 7-9 As shown in the embodiment of this application, there are two mounting rails 120, which are arranged along the length of the mounting bracket 100 and are parallel to each other.

[0068] Preferably, refer to Figure 13 As shown, the mounting guide rail 120 is provided with a T-slot 121, and a T-shaped limiting block 222 is provided at the bottom of the mounting groove 121. The T-shaped limiting block 222 can be engaged in the T-slot 121 and slide within it. The mounting groove 221 is provided with a mounting hole 2211, and the T-shaped limiting block 222 is engaged in the mounting hole 2211. In some embodiments, the bottom wall of the T-slot has a through hole, and the bottom of the liquid storage tank is provided with a threaded hole, for example, a threaded hole is provided at the bottom of the T-shaped limiting block. This threaded hole corresponds to the through hole in the bottom wall of the T-slot. During installation, a locking bolt can be screwed in from the bottom of the mounting bracket upwards. The locking bolt extends sequentially into the through hole of the T-slot and the threaded hole of the T-shaped limiting block, thereby more stably fixing the medicine box to the mounting bracket. In some embodiments, nuts can be pre-embedded during the injection molding of the liquid storage tank, so that the bottom of the liquid storage tank is provided after molding. When the liquid storage tank is placed on the mounting bracket, the locking bolt is inserted into the through hole of the mounting bracket and screwed into the nut of the liquid storage tank, thereby fixing the liquid storage tank and the mounting bracket relative to each other.

[0069] Preferably, in this embodiment of the application, the T-shaped limiting block 222 is snapped into the mounting hole 2211 by the elastic part. The elastic snapping installation method can provide a certain error space for the fit between the T-shaped block and the T-shaped groove 121. At the same time, it is also more convenient to assemble and disassemble the T-shaped block and the mounting hole 2211.

[0070] Reference Figure 3 As shown, the fixing hole 210 has a hole sidewall 223, and the hole sidewall 223 is provided with a transition fillet 224 at the position where it connects with the first surface 220 and the second surface 230.

[0071] In this embodiment, the transition fillet 224 provided on the first surface 220 can be used as a guide when the support rod 300 is inserted into the fixing hole 210. A buffer can be filled in the gap between the liquid storage tank 200 and the support rod 300 at the transition fillet 224, forming a flexible connection between the liquid storage tank 200 and the support rod 300. This prevents excessive gaps between them from causing wobbling, and also prevents hard contact between the support rod 300 and the liquid storage tank 200, which could cause friction and damage to the liquid storage tank 200 during relative movement.

[0072] As a further preferred technical solution, this application embodiment also includes a buffer pad, which is sleeved on the support rod 300 and located between the fixing hole 210 and the support rod 300.

[0073] Filling the gap between the fixing hole 210 and the support rod 300 can effectively prevent the liquid storage tank 200 from shaking relative to the support rod 300. At the same time, it can make the diameter of the fixing hole 210 larger than the diameter of the support rod 300, thereby facilitating the insertion of the support rod 300 into the fixing hole 210.

[0074] Specifically, refer to Figure 9 As shown, the support rod 300 has a first connecting end 310 and a second connecting end 320 that are opposite to each other. A first limiting part 311 is provided on the side of the first connecting end 310, and a second limiting part 111 is provided on the mounting bracket 100. The support rod 300 is limited relative to the mounting bracket 100 by the cooperation of the first limiting part 311 and the second limiting part 111.

[0075] In this embodiment, the first connecting end 310 extends below the first surface 220 for fixed connection with the mounting bracket 100. Specifically, refer to... Figure 5-11 As shown, the mounting bracket 100 is provided with a mounting clamp 110, and the support rod 300 passes through the mounting clamp 110 and the mounting bracket 100.

[0076] During the assembly of the liquid storage tank 200 and the mounting bracket 100, the mounting clamp 110 is first initially installed on the crossbeam, and the liquid storage tank 200 is placed in the preset position on the mounting bracket 100. At this time, the locking hole formed by the mounting clamp 110 and the mounting bracket 100 corresponds to the fixing hole 210 on the liquid storage tank 200. Then, the support rod 300 can be inserted into the fixing hole 210 and the locking hole, so that the first limiting part 311 and the second limiting part 111 are aligned. Then, the connecting screw between the mounting clamp 110 and the mounting bracket 100 is tightened, so that the mounting buckle is fastened on the support rod 300, and the first limiting part 311 and the second limiting part 111 achieve limiting cooperation.

[0077] Specifically, refer to Figure 9 As shown, in this embodiment of the application, the first limiting part 311 is a limiting protrusion provided on the first connecting end 310, and the second limiting part 111 is a limiting hole provided on the mounting clamp 110.

[0078] It is understood that the first limiting part 311 being a limiting protrusion and the second limiting part 111 being a limiting hole are not intended to limit this application. In other embodiments, the first limiting part 311 may be configured as a limiting hole and the first limiting part 311 as a limiting protrusion that cooperates with it.

[0079] Furthermore, the limiting protrusion can also adopt an elastic and retractable structure. When using an elastic and retractable structure as the limiting protrusion, the limiting protrusion is preferably a spherical protrusion. Under this structure, the support rod 300 can be disassembled and installed while the mounting clamp 110 and the mounting bracket 100 are locked, which can improve the replacement efficiency.

[0080] Optionally, a support protrusion is provided on the first surface 220 at the middle of the length direction of the mounting bracket 100, and the mounting groove 221 is provided on the support protrusion.

[0081] By providing a support protrusion at the middle of the first surface 220 along the length of the mounting bracket 100, and the length of the support protrusion being less than the length of the first surface 220 along the length of the mounting bracket 100, the length of the mounting groove 221 can be reduced by setting the mounting groove 221 on the support protrusion. This reduces the contact area between the liquid storage tank 200 and the mounting bracket 100, effectively reducing the relative friction between the liquid storage tank 200 and the mounting bracket 100, making it easier for the liquid storage tank 200 to move along the length of the mounting bracket 100.

[0082] Furthermore, refer to Figure 1-3 As shown, a support platform 231 is provided on the second surface 230 and on one side of the fixing hole 210. A connecting plate 400 is provided on the support platform 231. One end of the connecting plate 400 is fixedly connected to the support platform 231, and the other end is fixedly connected to the support rod 300.

[0083] The support platform 231 provides a flat surface for mounting the connecting plate 400, thereby ensuring the positional accuracy between the connecting plate 400 and the support rod 300 after installation. On the other hand, it can increase the thickness of the liquid storage tank 200 at this position, which increases the overall structural strength of the liquid storage tank 200 and facilitates the pre-setting of connection holes at this position, thus facilitating the installation of the connecting plate 400.

[0084] Optionally, the cross-sectional area of ​​the fixing hole 210 gradually decreases and then gradually increases from top to bottom. This arrangement facilitates the assembly of the fixing hole 210 with the support rod 300.

[0085] Preferably, the support rod 300 described in this application is provided with a conical platform on its outer side, which mates with the inner wall of the fixing hole. Specifically, in this embodiment, the conical platform is located at the lower part of the support rod 300, and its diameter gradually increases from top to bottom, so that the conical platform can be inserted into the fixing hole 210 and fits appropriately with the transition fillet 224, thereby preventing the liquid storage tank 200 from shaking relative to the support rod 300, while the support rod 300 supports the liquid storage tank 200 from below.

[0086] Additionally, this application also provides an unmanned vehicle, including the liquid storage tank mechanism described above. In some embodiments, the mounting bracket 100 can be the body of the unmanned vehicle.

[0087] The technical principles of this application have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this application and should not be construed as limiting the scope of protection of this application in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this application without inventive effort, and these embodiments will all fall within the scope of protection of this application.

Claims

1. A liquid storage tank mechanism, characterized in that, include: A liquid storage tank (200) is provided with a fixing hole (210) formed by the enclosure of the tank wall; Mounting bracket (100) supports the liquid storage tank (200) at the bottom; The mounting bracket (100) is provided with a support rod (300), which extends into the fixing hole (210) to limit and fix the liquid storage tank (200).

2. The liquid storage tank mechanism according to claim 1, characterized in that, The fixing hole (210) is a blind hole and is located on the surface of the liquid storage tank (200) facing the mounting bracket (100).

3. The liquid storage tank mechanism according to claim 1, characterized in that, The liquid storage tank (200) has a first surface (220) and a second surface (230) facing away from each other, and a receiving space is formed between the first surface (220) and the second surface (230); the fixing hole (210) penetrates the liquid storage tank (200) and connects the first surface (220) and the second surface (230), and the first surface (220) abuts against the mounting bracket (100).

4. The liquid storage tank mechanism according to claim 1, characterized in that, There are multiple fixing holes (210), and the multiple fixing holes (210) are evenly distributed on the liquid storage tank (200).

5. The liquid storage tank mechanism according to claim 3, characterized in that, The first surface (220) has a mounting groove (221), and the mounting bracket (100) is provided with a mounting guide rail (120) corresponding to the mounting groove (221). The liquid storage tank (200) can move along the length direction of the mounting bracket (100) when the mounting groove (221) and the mounting guide rail (120) cooperate.

6. The liquid storage tank mechanism according to claim 5, characterized in that, The mounting guide rail (120) is provided with a T-shaped groove (121), and a T-shaped limiting block (222) is provided at the bottom of the mounting groove (221). The T-shaped limiting block (222) can be engaged in the T-shaped groove (121) and slide in the T-shaped groove (121).

7. The liquid storage tank mechanism according to claim 6, characterized in that, The mounting groove (221) is provided with a mounting hole (2211), and the T-shaped limiting block (222) is engaged in the mounting hole (2211).

8. The liquid storage tank mechanism according to claim 3, characterized in that, The fixing hole (210) has a hole sidewall (223), and the hole sidewall (223) is provided with a transition fillet (224) at the position where it connects with the first surface (220) and the second surface (230).

9. The liquid storage tank mechanism according to claim 1, characterized in that, It also includes a buffer pad, which is sleeved on the support rod (300) and located between the fixing hole (210) and the support rod (300).

10. The liquid storage tank mechanism according to claim 1, characterized in that, The support rod (300) has a first connecting end (310) and a second connecting end (320) facing away from each other. A first limiting part (311) is provided on the side of the first connecting end (310), and a second limiting part (111) is provided on the mounting bracket (100). The support rod (300) is limited relative to the mounting bracket (100) by the cooperation of the first limiting part (311) and the second limiting part (111).

11. The liquid storage tank mechanism according to claim 1, characterized in that, The mounting bracket (100) is provided with a mounting clamp (110), and the support rod (300) passes through the mounting clamp (110) and the mounting bracket (100).

12. The liquid storage tank mechanism according to claim 11, characterized in that, The first limiting part (311) is a limiting protrusion provided on the first connecting end (310), and the second limiting part (111) is a limiting hole provided on the mounting clamp (110).

13. The liquid storage tank mechanism according to claim 5, characterized in that, A support protrusion is provided on the first surface (220) at the middle of the length direction of the mounting bracket (100), and the mounting groove (221) is provided on the support protrusion.

14. The liquid storage tank mechanism according to claim 10, characterized in that, The second surface (230) is provided with a support platform (231) on one side of the fixing hole (210). A connecting plate (400) is provided on the support platform (231). One end of the connecting plate (400) is fixedly connected to the support platform (231), and the other end is fixedly connected to the support rod (300).

15. The liquid storage tank mechanism according to claim 1, characterized in that, The cross-sectional area of ​​the fixing hole (210) gradually decreases and then gradually increases from top to bottom.

16. The liquid storage tank mechanism according to claim 1, characterized in that, A conical platform is provided on the outer side of the support rod (300), and the conical platform cooperates with the inner wall of the fixing hole (210).

17. An unmanned vehicle, characterized in that, The liquid storage tank mechanism includes any one of claims 1-16.