High-strength fuel tank

Abstract

The utility model discloses a high-strength fuel tank which comprises a fuel tank body and a fuel tank opening formed in the top of the fuel tank body, and a plurality of fixing assemblies and unbuckling assemblies are arranged in the fuel tank body. The fixing assembly forms a triple fixing structure through mechanical embedding of the supporting rod and the embedding groove, covering and locking of the limiting sleeve on the positioning block and the adsorption effect of the magnetic attraction ring, and stable clamping is achieved in cooperation with the limiting block pre-tightened by the torsional spring. The unlocking assembly adopts a linkage mechanism that a lifting rod drives a rotating rod to rotate, unlocking track control is achieved through sliding fit of a movable groove and a limiting column, and self-locking in the unlocking state is guaranteed through a friction plate. The fuel tank has the advantages of being convenient to install and reliable in locking, single-hand rapid disassembly and assembly are achieved through modular design, the multiple interlocking structures of the fuel tank effectively resist vibration impact, the fuel tank is particularly suitable for fuel systems of vehicles and other mobile equipment, and the maintenance efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of fuel tank technology, specifically a high-strength fuel tank. Background Technology

[0002] Plastic fuel tanks offer significant advantages in terms of design, corrosion resistance, and capacity, gradually replacing metal fuel tanks. To reduce weight, the wall thickness of plastic fuel tanks needs to be controlled; however, thinner walls reduce the structural strength, particularly compressive strength and impact resistance, requiring improvement.

[0003] Publication No. CN217022181U discloses a high-strength rotomolded fuel tank for automobiles, comprising: a rotomolded fuel tank shell and an elastic support assembly. The elastic support assembly includes a first insert, a second insert, a first support rod, a second support rod, and an elastic rubber ring. The first insert is disposed at the top of the inner cavity of the rotomolded fuel tank shell, and the second insert is disposed at the bottom of the inner cavity of the rotomolded fuel tank shell and directly below the first insert. The first support rod is disposed at the bottom of the first insert and extends downwards, and the second support rod is disposed at the top of the second insert and extends upwards. The elastic rubber ring is disposed between the first support rod and the second support rod. The first and second support rods support the inner cavity of the rotomolded fuel tank shell, improving its compressive strength, and the elastic rubber ring provides cushioning during impact. However, this patent still has the following problems in actual use:

[0004] When installing the support rod in the above device, the insert structure needs to be fully utilized. However, during actual assembly, it is necessary to reach into the box to operate. However, the diameter of the box opening is generally short, so one can only reach in and operate by feel. The insertion alignment operation required by the above device is difficult, and the stability is poor when operating with one hand, which makes the installation inconvenient.

[0005] A high-strength fuel tank is proposed to address the problems mentioned above. Utility Model Content

[0006] The purpose of this utility model is to provide a high-strength fuel tank to solve the problem that, in the above-mentioned device mentioned in the background art, the support rod needs to make full use of the insert structure during installation, but in actual assembly, it is necessary to reach into the tank to operate. However, the diameter of the tank opening is generally short, so one can only reach in and operate by feel. The insertion alignment operation required by the above-mentioned device is difficult, the stability is poor when operating with one hand, and thus the installation is inconvenient.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a high-strength fuel tank, comprising a tank body, wherein the top of the tank body is provided with a tank opening;

[0008] The interior of the fuel tank body is provided with several fixing components. The fixing components include support rods, and limiting sleeves are symmetrically slidably fitted on both sides of the support rods. The fixing components also include several positioning blocks fixed inside the fuel tank body. A magnetic ring is fixedly connected to the inner side of the limiting sleeve. A groove is opened on one side of the positioning block. Anti-detachment blocks are fixedly connected to both ends of the support rod. Two pairs of hinge plates are symmetrically fixedly connected to the top surface of the limiting sleeve. A rotating shaft is rotatably connected to the middle of the two hinge plates in the same pair. A crank is fixedly connected to the middle of the rotating shaft. A limiting block is fixedly connected to the top of the crank. Torsion springs are symmetrically fitted on both sides of the rotating shaft.

[0009] One of the rotating shafts has a first rotating rod fixedly connected to both ends, and the other rotating shaft has a second rotating rod fixedly connected to both ends. The second rotating rod has a movable groove, and a limit post is fixedly connected to one end of the first rotating rod.

[0010] The support rod is provided with an unfastening assembly on its exterior.

[0011] Preferably, the support rod is fitted into the groove, the limiting sleeve covers the positioning block, and the magnetic ring is magnetically connected to the positioning block.

[0012] Preferably, one end of the rotating shaft is fixedly connected to the crank, and the other end of the rotating shaft is fixedly connected to the hinge plate.

[0013] Preferably, the limiting block is engaged with both sides of the support rod.

[0014] Preferably, the limiting post is slidably connected to the movable groove.

[0015] Preferably, the unfastening assembly includes a hinge plate fixedly connected to the top surface of the second rotating rod, and the hinge plate is rotatably connected to a lifting rod.

[0016] Preferably, the support rod is symmetrically fitted with movable sleeves on its outer side, and friction plates are symmetrically fixedly connected to the middle part of the support rod. The two movable sleeves are rotatably connected to one end of different lifting rods.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: This high-strength fuel tank, through the fitting of the support rod and the groove, the covering and locking of the positioning block by the limiting sleeve, the adsorption of the magnetic ring, and the elastic force of the torsion spring, forms a multi-interlocking structure, which enables quick installation with one hand while ensuring support stability. The specific details are as follows:

[0018] 1. Through the precise fitting design of the support rod and the groove, combined with the complete coverage of the positioning block by the limiting sleeve, a double mechanical locking structure is formed to ensure that the support rod remains absolutely fixed inside the fuel tank; the magnetic attraction between the magnetic ring and the positioning block further enhances the connection stability and effectively resists the vibration and impact during vehicle operation; the unique design of the anti-detachment block prevents the support rod from accidentally separating from the limiting sleeve, while the continuous elastic force provided by the torsion spring keeps the limiting block tightly engaged with the support rod at all times; the entire fixing assembly adopts a modular design, and installation can be completed by pushing, pulling and rotating the limiting sleeve with only one hand. The operation process does not require auxiliary tools, which not only greatly improves the installation efficiency, but also ensures reliability under complex working conditions through multiple interlocking mechanisms;

[0019] 2. Through the linkage design of the lifting rod and the second rotating rod, the operator can simultaneously drive the crank to rotate by lifting the movable sleeve with one hand, realizing the quick release of the limit block; when the limit post slides into the end of the movable groove, the system automatically enters the angle locking state, and continuing to lift will drive the entire limit sleeve to move upward; the friction plate is made of a high friction coefficient material, which generates self-locking friction after the limit sleeve moves to the position, keeping the part stably in the disassembled position and preventing accidental fall; this design simplifies the disassembly process that originally required multiple people to cooperate into a single-handed continuous action, which is especially suitable for operation in a small maintenance space. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the front cross-section structure of this utility model;

[0021] Figure 2 This is a structural diagram of the limiting sleeve and positioning block;

[0022] Figure 3 for Figure 1 Enlarged structural diagram at point A in the middle;

[0023] Figure 4 for Figure 2 Enlarged structural diagram at point B;

[0024] Figure 5 for Figure 1 Enlarged structural diagram at point C.

[0025] In the diagram: 1. Fuel tank body; 101. Fuel tank opening; 2. Fixing assembly; 201. Support rod; 202. Limiting sleeve; 203. Positioning block; 204. Magnetic ring; 205. Embedded groove; 206. Anti-detachment block; 207. Hinge plate; 208. Rotating shaft; 209. Crank rod; 210. Limiting block; 211. Torsion spring; 212. First rotating rod; 213. Limiting post; 214. Second rotating rod; 215. Movable groove; 3. Unlocking assembly; 301. Hinge piece; 302. Lifting rod; 303. Movable sleeve; 304. Friction plate. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-5 The present invention provides a technical solution: a high-strength fuel tank, including a fuel tank body 1, and a fuel tank opening 101 on the top of the fuel tank body 1; this design facilitates the installation and maintenance of internal components through the top opening structure.

[0028] The interior of the fuel tank body 1 is provided with several fixing components 2. The fixing components 2 include support rods 201, and limiting sleeves 202 are symmetrically slidably sleeved on both sides of the support rods 201. The fixing components 2 also include several positioning blocks 203 fixed inside the fuel tank body 1. A magnetic ring 204 is fixedly connected to the inner side of the limiting sleeve 202. A groove 205 is opened on one side of the positioning block 203. This structure achieves initial positioning through the cooperation of the support rods 201 and the grooves 205, and the magnetic ring 204 and the positioning block 203 provide auxiliary fixation through adsorption. Both ends of the support rod 201 are fixedly connected to anti-detachment blocks 206. The top surface of the limiting sleeve 202 is symmetrically fixedly connected to two pairs of hinge plates 207. The middle of the two hinge plates 207 in the same pair is rotatably connected to a rotating shaft 208. The middle of the rotating shaft 208 is fixedly connected to a curved rod 209. The top end of the curved rod 209 is fixedly connected to a limiting block 210. Torsion springs 211 are symmetrically sleeved on both sides of the rotating shaft 208. The linkage mechanism maintains the stable engagement of the limiting block 210 and the support rod 201 through the elastic force of the torsion spring 211. The support rod 201 has slots on both sides, and the limiting block 210 engages with them.

[0029] One rotating shaft 208 has a first rotating rod 212 fixedly connected to both ends, and another rotating shaft 208 has a second rotating rod 214 fixedly connected to both ends. The second rotating rod 214 has a movable groove 215, and one end of the first rotating rod 212 is fixedly connected to a limiting post 213. This design allows rotational motion to be transmitted through the rotating rods, and the cooperation between the movable groove 215 and the limiting post 213 controls the stroke. The support rod 201 has an unlocking assembly 3 on its exterior, which allows for quick unlocking of the internal fixing mechanism through external operation.

[0030] The support rod 201 engages with the groove 205, the limiting sleeve 202 covers the positioning block 203, and the magnetic ring 204 is magnetically connected to the positioning block 203; this triple fixing mechanism ensures the stability of the support rod 201 under vibration. One end of the rotating shaft 208 is fixedly connected to the crank 209, and the other end of the rotating shaft 208 is fixedly connected to the hinge plate 207; this rigid connection ensures effective torque transmission. The limiting block 210 engages with both sides of the support rod 201, and the preload of the torsion spring 211 maintains the locked state. The limiting post 213 is slidably connected to the movable groove 215, guiding the movement trajectory during unlocking.

[0031] The unlocking assembly 3 includes a hinge plate 301 fixedly connected to the top surface of the second rotating rod 214, and a lifting rod 302 rotatably connected to the hinge plate 301; this structure converts the external lifting force into rotational torque. Movable sleeves 303 are symmetrically slidably fitted onto the outside of the support rod 201, and friction plates 304 are symmetrically fixedly connected to the middle of the support rod 201. The two movable sleeves 303 are rotatably connected to one end of different lifting rods 302; this design achieves position self-locking through the friction plates 304, ensuring a stable unlocked state.

[0032] Working principle: Before using this high-strength fuel tank, it is necessary to check the overall condition of the device to ensure it can function normally. Figure 1 - Figure 5 As shown, by holding the support rod 201, the support rod 201 is inserted into the fuel tank body 1 from the fuel tank opening 101, and then the support rod 201 is inserted into the groove 205 from the side. Then, the limiting sleeve 202 is pushed so that it slides outside the support rod 201 and covers the outside of the positioning block 203. Finally, the limiting sleeve 202 is rotated so that the limiting block 210 moves to fit against the outside of the fuel tank body 1 until it is inserted into the support rod 201, thus realizing the quick installation of the support rod 201. The multiple fixing components 2 that can be quickly installed can support the fuel tank body 1 from the inside of the fuel tank body 1, and the whole process can be operated with one hand, increasing practicality.

[0033] After the support rod 201 is embedded in the groove 205, the positioning block 203 is covered by the limiting sleeve 202, so that the support rod 201 cannot be disengaged from the positioning block 203.

[0034] Torsion spring 211 can prevent the limit block 210 from disengaging from the support rod 201 and maintain locking stability;

[0035] The anti-detachment block 206 can prevent the support rod 201 from detaching from the limiting sleeve 202, and the magnetic ring 204 can magnetically attract the positioning block 203, increasing the stability of the limiting sleeve 202 after installation.

[0036] By using the movable sleeve 303, the lifting rod 302 pulls the second rotating rod 214 to rotate, and the second rotating rod 214 pulls the crank rod 209 to rotate via the rotating shaft 208. This causes the limiting block 210 to disengage from the support rod 201. When the second rotating rod 214 and the lifting rod 302 rotate into a straight line, the limiting post 213 moves to the end of the movable groove 215, locking the angle between the two. This allows the lifting rod 302, which continues to move upward, to pull the limiting sleeve 202 upward. When the limiting sleeve 202 is in contact with the friction plate 304, the friction between the friction plate 304 and the limiting sleeve 202 locks the position of the limiting sleeve 202. Finally, the support rod 201 can be quickly unlocked and disassembled with one hand for parts replacement and maintenance.

[0037] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-strength fuel tank, comprising a tank body (1), the top of the tank body (1) being provided with a tank opening (101); characterized in that Further comprising: The inside of the tank body (1) is provided with a plurality of fixing assemblies (2), the fixing assembly (2) comprises a support rod (201), the two sides of the support rod (201) are symmetrically sleeved with a limiting sleeve (202), the fixing assembly (2) further comprises a plurality of positioning blocks (203) fixed in the inside of the tank body (1), the inner side of the limiting sleeve (202) is fixedly connected with a magnetic attraction ring (204), one side of the positioning block (203) is provided with an embedding groove (205), the two ends of the support rod (201) are fixedly connected with anti-dropping blocks (206), the top surface of the limiting sleeve (202) is fixedly connected with two pairs of hinged plates (207) symmetrically, the middle part of the two hinged plates (207) of the same pair is rotatably connected with a rotating shaft (208), the middle part of the rotating shaft (208) is fixedly connected with a curved rod (209), the top end of the curved rod (209) is fixedly connected with a limiting block (210), the two sides of the rotating shaft (208) are symmetrically sleeved with a torsional spring (211); Wherein, the two ends of one rotating shaft (208) are fixedly connected with a first rotating rod (212), the two ends of the other rotating shaft (208) are fixedly connected with a second rotating rod (214), the second rotating rod (214) is provided with a movable groove (215), one end of the first rotating rod (212) is fixedly connected with a limiting column (213); Wherein, the outside of the support rod (201) is provided with an undogging assembly (3).

2. A high strength fuel tank as defined in claim 1, characterized in that: The support rod (201) is embedded with the embedding groove (205), the limiting sleeve (202) covers the positioning block (203), and the magnetic attraction ring (204) is magnetically connected with the positioning block (203).

3. A high strength fuel tank as defined in claim 2, wherein: One end of the rotating shaft (208) is fixedly connected with the curved rod (209), and the other end of the rotating shaft (208) is fixedly connected with the hinged plate (207).

4. A high strength fuel tank as defined in claim 1, wherein: The limiting block (210) is clamped and connected with the two sides of the support rod (201).

5. A high strength fuel tank as defined in claim 1, wherein: The limiting column (213) is slidably connected with the movable groove (215).

6. A high strength fuel tank as defined in claim 1, wherein: The undogging assembly (3) comprises a hinged sheet (301) fixedly connected with the top surface of the second rotating rod (214), and the hinged sheet (301) is rotatably connected with a pull rod (302).

7. A high strength fuel tank as defined in claim 6 wherein: The outside of the support rod (201) is symmetrically sleeved with a movable sleeve (303), the middle part of the support rod (201) is fixedly connected with a friction plate (304), and the two movable sleeves (303) are rotatably connected with one end of different pull rods (302) respectively.

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