Liquid storage tank and liquid tank truck

Abstract

The present invention discloses a liquid storage tank and a liquid tank truck, the liquid storage tank comprising: a tank body and a wave-breaking device, the tank body having a liquid storage cavity; the wave-breaking device comprising a plurality of wave-breaking plates, an elastic bracket, an elastic membrane and a telescopic rod, the plurality of wave-breaking plates being connected to the bottom wall of the tank body and being located in the liquid storage cavity, the plurality of wave-breaking plates being arranged at intervals along the length direction of the tank body, the telescopic rod being fixed to the top of the tank body and extending into the liquid storage cavity, the elastic bracket being a frame-shaped structure and being connected to the telescopic rod, the elastic membrane covering the elastic bracket, and the telescopic rod being able to drive the elastic bracket to move in a direction toward or away from the wave-breaking plate. The liquid storage tank provided by an embodiment of the present invention utilizes the cooperation of the plurality of wave-breaking plates, the elastic bracket and the elastic membrane of the wave-breaking device to reduce the shaking amplitude of the liquid in the tank body, and can reduce the probability of accidents such as excessive braking distance or rollover of the liquid tank truck caused by the shaking force and shaking torque generated by the liquid, thereby helping to improve the safety of transportation.

Description

Technical Field

[0001] The present invention relates to the technical field of liquid storage equipment manufacturing, in particular to a liquid storage tank and a liquid tank truck. Background Art

[0002] In related technology, a tank truck is a vehicle used to transport liquids (water, refined oil, etc.). Due to the fluidity of liquids, acceleration, deceleration, turning, lane changes, and other maneuvers can cause the liquid inside the tank to slosh. The sloshing force and torque generated by this sloshing can easily lead to accidents such as excessive braking distances or rollovers, posing a safety hazard. Summary of the Invention

[0003] The present invention aims to address at least one of the technical problems existing in the prior art. To this end, the present invention proposes a liquid storage tank that utilizes a wave-breaking device comprising multiple wave-breaking plates, elastic brackets, and an elastic membrane to reduce the sloshing amplitude of the liquid within the tank. This reduces the probability of accidents such as excessive braking distances or rollovers of the tank truck caused by the sloshing force and sloshing torque, thereby improving transportation safety.

[0004] In a second aspect, the present invention also proposes a liquid tank truck using the above-mentioned liquid storage tank.

[0005] According to the first aspect of the present invention, the liquid storage tank provided in the embodiment includes: a tank body and a wave-breaking device, the tank body having a liquid storage cavity; the wave-breaking device includes a plurality of wave-breaking plates, an elastic bracket, an elastic membrane and a telescopic rod, the plurality of wave-breaking plates are connected to the bottom wall of the tank body and are located in the liquid storage cavity, the plurality of wave-breaking plates are arranged at intervals along the length direction of the tank body, the telescopic rod is fixed to the top of the tank body and extends into the liquid storage cavity, the elastic bracket is a frame-shaped structure and is connected to the telescopic rod, the elastic membrane covers the elastic bracket, and the telescopic rod can drive the elastic bracket to move in a direction toward or away from the wave-breaking plate.

[0006] The liquid storage tank provided by the embodiment of the first aspect of the present invention has at least the following beneficial effects: when transporting liquid using a liquid tank truck, the liquid to be transported is loaded into the tank, and then the telescopic rod is controlled to extend and retract to drive the elastic bracket and elastic membrane to move so that the elastic bracket and elastic membrane cover the upper surface of the liquid, and then transportation can begin; during transportation, when the liquid tank truck accelerates, decelerates, turns, changes lanes, etc., the liquid in the tank will slosh, and the wave-breaking plate at the bottom of the tank can hinder the flow of the liquid and inhibit the shift of the liquid's center of mass; liquid near the free surface of the liquid will impact the elastic bracket and elastic membrane. Because the elastic membrane covers the liquid surface, the elastic membrane undergoes elastic deformation under the impact of the liquid to absorb the sloshing force generated by the liquid sloshing, thereby reducing the sloshing amplitude of the liquid surface in the tank. The liquid storage tank provided by the embodiment of the present invention, by utilizing the cooperation of the multiple wave-breaking plates of the wave-breaking device and the elastic bracket and elastic membrane, can reduce the sloshing amplitude of the liquid in the tank, and can reduce the probability of accidents such as excessive braking distance or rollover of the liquid tank truck caused by the sloshing force and sloshing torque generated by the liquid sloshing, thereby improving transportation safety.

[0007] According to the liquid storage tank provided by the embodiment of the first aspect of the present invention, a plurality of reinforcing rods are arranged at intervals in the length direction of the elastic bracket, and the telescopic rod is connected to the reinforcing rods.

[0008] The liquid storage tank provided in accordance with the embodiment of the first aspect of the present invention further includes a tensioning assembly, which includes a cable and multiple fixing rings, and the multiple fixing rings are arranged along the inner side wall and the inner top wall of the tank body. One end of the cable is connected to the end of the elastic bracket and extends downward, and the other end passes through the fixing ring in sequence to reach the top wall of the tank body and then extends downward to be connected to the reinforcing rod.

[0009] According to the liquid storage tank provided by the embodiment of the first aspect of the present invention, the tensioning components are provided at both ends of the elastic bracket in the length direction.

[0010] According to the liquid storage tank provided by the embodiment of the first aspect of the present invention, a sealing sleeve is provided on the outer periphery of the telescopic rod, and two ends of the sealing sleeve are respectively connected to and sealed with the top of the tank body and the elastic bracket.

[0011] According to the liquid storage tank provided by the embodiment of the first aspect of the present invention, a mounting seat is provided on the top of the liquid storage tank, a plurality of reinforcing ribs are provided on the mounting seat, and the telescopic rod is installed on the mounting seat.

[0012] According to the liquid storage tank provided by the embodiment of the first aspect of the present invention, a buffer device is provided between the telescopic rod and the elastic bracket.

[0013] According to the liquid storage tank provided in the embodiment of the first aspect of the present invention, the buffer device includes a spring seat and a spring, the spring seat is connected to the end of the telescopic rod, one end of the spring is installed on the spring seat, and the other end abuts and is fixed to the elastic bracket.

[0014] According to the liquid storage tank provided by the embodiment of the first aspect of the present invention, a first manhole is provided on the top of the tank body, and a first sealing cover is provided at the first manhole; a second manhole is provided in the middle of the elastic membrane, and a second sealing cover is provided at the second manhole.

[0015] A liquid tanker provided according to an embodiment of the second aspect of the present invention includes the liquid storage tank as described in the embodiment of the first aspect of the present invention.

[0016] The liquid tanker provided in accordance with the embodiment of the second aspect of the present invention has at least the following beneficial effects: when using a liquid tanker to transport liquid using a liquid storage tank, the liquid to be transported is loaded into the liquid storage cavity of the tank body, and then the telescopic rod is controlled to extend and retract to drive the elastic bracket and the elastic membrane to move, so that the elastic bracket and the elastic membrane cover the upper surface of the liquid, and transportation can begin; during transportation, when the liquid tanker performs operations such as acceleration, deceleration, turning, and changing lanes, it will cause the liquid in the tank body to shake, and the wave-breaking plate at the bottom of the tank body can hinder the flow of the liquid and inhibit the transfer of the center of mass of the liquid; the liquid close to the free surface of the liquid will impact the elastic bracket and the elastic membrane. Since the elastic membrane covers the liquid surface, the elastic membrane undergoes elastic deformation under the impact of the liquid to absorb the shaking force of the liquid when it shakes, so as to reduce the shaking amplitude of the liquid surface in the tank body.

[0017] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Additional aspects and advantages of the present invention will become apparent and readily understood from the following description of embodiments with reference to the accompanying drawings, in which:

[0019] Figure 1 An overall schematic diagram of a liquid storage tank provided by an embodiment of the first aspect of the present invention;

[0020] Figure 2 A schematic diagram of the internal structure of a liquid storage tank provided in an embodiment of the first aspect of the present invention;

[0021] Figure 3 A cross-sectional view of a liquid storage tank provided in accordance with an embodiment of the first aspect of the present invention;

[0022] Figure 4 A schematic structural diagram of a tensioning assembly of a liquid storage tank provided by an embodiment of the first aspect of the present invention;

[0023] Figure 5This is a schematic structural diagram of a telescopic rod and a buffer assembly of a liquid storage tank provided in an embodiment of the first aspect of the present invention.

[0024] The accompanying figures are as follows:

[0025] Tank body 100; liquid storage chamber 110; wave-breaking plate 120; elastic bracket 130; reinforcing rod 131; elastic membrane 140; telescopic rod 150; cable 160; fixing ring 170; sealing sleeve 180; spring seat 190; spring 200; first cover 210; second cover 220. DETAILED DESCRIPTION

[0026] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0027] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0028] In the description of the present invention, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0029] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0030] In related technology, a tank truck is a vehicle used to transport liquids (water, refined oil, etc.). Due to the fluidity of liquids, acceleration, deceleration, turning, lane changes, and other maneuvers can cause the liquid inside the tank to slosh. The sloshing force and torque generated by this sloshing can easily lead to accidents such as excessive braking distances or rollovers, posing a safety hazard.

[0031] To solve this problem, the first embodiment of the present invention provides a liquid storage tank. By utilizing the cooperation of multiple wave-breaking plates 120, elastic brackets 130 and elastic membranes 140 of the wave-breaking device, the shaking amplitude of the liquid in the tank body 100 can be reduced, and the probability of accidents such as excessive braking distance or rollover of the tank truck caused by the shaking force and shaking torque generated by the liquid shaking can be reduced, which is beneficial to improving the safety of transportation. The specific structure and function of the liquid storage tank provided by the embodiment of the present invention will be further explained in combination with text and drawings below.

[0032] Reference Figures 1 to 3 , a liquid storage tank provided according to an embodiment of the first aspect of the present invention includes: a tank body 100 and a wave-breaking device, the tank body 100 is long and has a liquid storage cavity 110 inside; the wave-breaking device includes a plurality of wave-breaking plates 120, an elastic bracket 130, an elastic membrane 140 and a plurality of telescopic rods 150, the plurality of wave-breaking plates 120 are fixedly connected to the bottom wall of the tank body 100 and are located in the liquid storage cavity 110, the plurality of wave-breaking plates 120 are arranged at intervals along the length direction of the tank body 100, the plurality of telescopic rods 150 are fixed at intervals on the top of the tank body 100 and extend into the liquid storage cavity 110, the elastic bracket 130 is a frame-shaped structure and is connected to the end of the telescopic rod 150, the elastic membrane 140 covers the elastic bracket 130, and the telescopic rod 150 can drive the elastic bracket 130 to move in the direction toward or away from the wave-breaking plate 120.

[0033] According to the liquid storage tank provided by the embodiment of the first aspect of the present invention, when transporting liquid using a liquid tank truck, the liquid to be transported is loaded into the liquid storage chamber 110, and then the telescopic rod 150 is controlled to extend and retract to drive the elastic bracket 130 and the elastic membrane 140 to move, so that the elastic bracket 130 and the elastic membrane 140 cover the upper surface of the liquid, and transportation can begin; during transportation, when the liquid tank truck accelerates, decelerates, turns, changes lanes, etc., it will cause the liquid in the tank body 100 to shake, and the wave-breaking plate 120 at the bottom of the tank body 100 can block the flow of the liquid and suppress the transfer of the center of mass of the liquid; the liquid inside the tank body 100 close to the free surface of the liquid will impact the elastic bracket 130 and the elastic membrane 140. Since the elastic membrane 140 covers the liquid surface, the elastic membrane 140 undergoes elastic deformation under the impact of the liquid to absorb the shaking force of the liquid when it shakes, so as to reduce the shaking amplitude of the liquid surface in the tank body 100. The liquid storage tank provided in an embodiment of the present invention utilizes the cooperation of multiple wave-breaking plates 120, elastic brackets 130, and elastic membranes 140 of the wave-breaking device to reduce the sloshing amplitude of the liquid in the tank body 100, and can reduce the probability of accidents such as excessive braking distance or rollover of the tank truck caused by the sloshing force and sloshing torque generated by the liquid sloshing, which is beneficial to improving the safety of transportation.

[0034] It should be noted that a liquid level indicator is provided in the tank body 100 to facilitate the staff to control the extension and retraction of the telescopic rod 150 so that the elastic bracket 130 and the elastic membrane 140 can be located near the liquid level in the tank body 100 .

[0035] It can be understood that the telescopic rod 150 can be a hydraulic rod, a pneumatic rod, etc. When the telescopic rod 150 is a hydraulic rod, the driving device of the hydraulic rod is arranged outside the tank body 100, and each hydraulic rod is individually controllable. During the actual transportation process, when the liquid below the elastic membrane 140 in the tank body 100 overflows from the gap between the elastic bracket 130 and the tank body 100 to the upper surface of the elastic membrane 140 due to disturbance, the hydraulic rods at different positions can be controlled to work so that the elastic bracket 130 and the elastic membrane 140 are tilted to pour the liquid on the upper surface of the elastic membrane 140 to the bottom; the number and arrangement of the telescopic rods 150 can be arranged according to actual transportation needs and are not specifically limited here.

[0036] Reference Figure 3 and Figure 4 According to the liquid storage tank provided by the embodiment of the first aspect of the present invention, a plurality of reinforcing rods 131 are arranged at intervals in the length direction of the elastic bracket 130, and the end of the telescopic rod 150 is connected to the reinforcing rod 131. By arranging a plurality of reinforcing rods 131 on the elastic bracket 130, it is beneficial to increase the structural strength of the elastic bracket 130, and the end of the telescopic rod 150 is directly connected to the reinforcing rod 131. The force of the telescopic rod 150 can directly act on the reinforcing rod 131 and then be transmitted to the entire elastic bracket 130, and the elastic bracket 130 is not prone to large deformation.

[0037] Reference Figure 3 and Figure 4 The liquid storage tank provided by the embodiment of the first aspect of the present invention also includes a tensioning assembly, which includes a cable 160 and a plurality of fixing rings 170. The plurality of fixing rings 170 are arranged at intervals along the inner side wall and the inner top wall of the tank body 100. One end of the cable 160 is connected to the end of the elastic bracket 130 and extends downward, and the other end passes through the fixing ring 170 in turn to reach the top wall of the tank body 100 and then extends downward to be connected to the reinforcing rod 131. During transportation, the liquid in the tank body 100 will shake to generate an impact force on the elastic membrane 140, and the impact force exerted on the elastic membrane 140 will be transmitted to the elastic bracket 130. By utilizing the cable 160 of the tensioning assembly and the fixing ring 170 to cooperate with each other, the end of the elastic bracket 130 can be tightened downward, which can prevent the impact force of the liquid in the tank body 100 on the elastic bracket 130 from being too large, thereby causing the elastic bracket 130 to bend.

[0038] Reference Figure 3 and Figure 4According to the liquid storage tank provided by the embodiment of the first aspect of the present invention, tensioning components are provided at both ends of the elastic bracket 130 in the length direction. By using two sets of tensioning components to simultaneously tighten the two ends of the elastic bracket 130, it is possible to prevent the liquid in the tank body 100 from exerting excessive impact force on the elastic membrane 140, thereby preventing the two ends of the elastic bracket 130 from bending.

[0039] It should be noted that when tensioning components are provided at both ends of the elastic bracket 130 in the longitudinal direction, when the elastic bracket 130 and the elastic membrane 140 are tilted by individually controlling the telescopic rod 150, tilting toward both ends of the elastic bracket 130 in the longitudinal direction should be avoided to prevent damage to the tensioning components.

[0040] Reference Figures 3 to 5 According to the liquid storage tank provided by the embodiment of the first aspect of the present invention, a sealing sleeve 180 is provided on the outer periphery of the telescopic rod 150, and the two ends of the sealing sleeve 180 are respectively connected to and sealed with the top of the tank body 100 and the elastic bracket 130. By providing the sealing sleeve 180 to seal the telescopic rod 150, it is possible to prevent the liquid (water, refined oil, chemical liquid, etc.) in the tank body 100 from causing contamination or corrosion to the telescopic rod 150.

[0041] It should be noted that when the telescopic rod 150 is a hydraulic rod, the sealing sleeve 180 sleeved on the outside of the telescopic rod 150 can prevent the hydraulic rod from failing and leaking oil, but the hydraulic oil may contaminate the liquid in the tank body 100.

[0042] Reference Figure 4 According to the liquid storage tank provided by the embodiment of the first aspect of the present invention, a mounting seat is provided on the top of the liquid storage tank, and a plurality of reinforcing ribs are provided on the mounting seat. The telescopic rod 150 is installed on the mounting seat. The fixing method of the telescopic rod 150 is stable and reliable. By providing reinforcing ribs on the mounting seat, when the telescopic rod 150 is subjected to force, the force can be transmitted to the tank body 100 through the mounting seat and the reinforcing ribs, thereby ensuring the stability of the connection between the mounting seat and the tank body 100.

[0043] Reference Figures 3 to 5 According to the liquid storage tank provided by the embodiment of the first aspect of the present invention, a buffer device is provided between the telescopic rod 150 and the elastic bracket 130. By providing the buffer device between the telescopic rod 150 and the elastic bracket 130, during transportation, the liquid in the tank body 100 will shake to generate an impact force on the elastic bracket 130. The buffer device between the telescopic rod 150 and the elastic bracket 130 can buffer the impact force and prevent the impact force from directly acting on the telescopic rod 150 through the elastic bracket 130.

[0044] Reference Figures 3 to 5According to the liquid storage tank provided by the embodiment of the first aspect of the present invention, the buffer device includes a spring seat 190 and a spring 200. The spring seat 190 is connected to and fixed to the end of the telescopic rod 150. One end of the spring 200 is installed on the spring seat 190, and the other end abuts and is fixed to the elastic bracket 130. The installation of the spring 200 is stable and reliable. When the liquid in the tank body 100 will shake to generate an impact force on the elastic membrane 140, the impact force on the elastic membrane 140 will be transmitted to the elastic bracket 130, and then transmitted to the telescopic rod 150 by the elastic bracket 130. At this time, the spring 200 of the buffer device expands and contracts to generate a buffering force, which can reduce the impact of the elastic bracket 130 on the telescopic rod 150.

[0045] Reference Figure 2 and Figure 3 According to the liquid storage tank provided by the embodiment of the first aspect of the present invention, a first manhole is provided on the top of the tank body 100, and a first cover 210 is provided at the first manhole; a second manhole is provided in the middle of the elastic membrane 140, and a second cover 220 is provided at the second manhole. By setting the first manhole and the second manhole, the inspection or cleaning of the tank body 100 is facilitated.

[0046] It should be noted that the orientations of the first manhole and the second manhole can be aligned or have a certain deviation. When the tank body 100 needs to be inspected or cleaned, the operator can control the telescopic rod 150 to rise so that the elastic bracket 130 and the elastic membrane 140 are close to the top position.

[0047] It should be noted that the elastic membrane 140 is detachably mounted on the elastic bracket 130 . When necessary during maintenance, the elastic membrane 140 can be removed to facilitate operation.

[0048] A liquid tanker provided according to an embodiment of the second aspect of the present invention includes a liquid storage tank according to an embodiment of the first aspect of the present invention.

[0049] According to the liquid tanker provided in the embodiment of the second aspect of the present invention, when using the liquid tanker to transport liquid, the liquid to be transported is loaded into the liquid storage chamber 110, and then the telescopic rod 150 is controlled to extend and retract to drive the elastic bracket 130 and the elastic membrane 140 to move, so that the elastic bracket 130 and the elastic membrane 140 cover the upper surface of the liquid, and transportation can begin; during transportation, when the liquid tanker performs operations such as acceleration, deceleration, turning, and changing lanes, it will cause the liquid in the tank body 100 to shake, and the wave-breaking plate 120 at the bottom of the tank body 100 can block the flow of the liquid and suppress the transfer of the center of mass of the liquid; the liquid inside the tank body 100 close to the free surface of the liquid will impact the elastic bracket 130 and the elastic membrane 140. Since the elastic membrane 140 covers the liquid surface, the elastic membrane 140 undergoes elastic deformation under the impact of the liquid to absorb the shaking force of the liquid when it shakes, so as to reduce the shaking amplitude of the liquid surface in the tank body 100. The liquid storage tank provided in an embodiment of the present invention utilizes the cooperation of multiple wave-breaking plates 120, elastic brackets 130, and elastic membranes 140 of the wave-breaking device to reduce the sloshing amplitude of the liquid in the tank body 100, and can reduce the probability of accidents such as excessive braking distance or rollover of the tank truck caused by the sloshing force and sloshing torque generated by the liquid sloshing, which is beneficial to improving the safety of transportation.

[0050] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. The present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A liquid storage tank, characterized in that: include: A tank body having a liquid storage cavity, wherein a liquid level indicator device is provided in the tank body; The wave-breaking device comprises a plurality of wave-breaking plates, an elastic bracket, an elastic membrane and a telescopic rod, wherein the plurality of wave-breaking plates are connected to the bottom wall of the tank body and are located in the liquid storage cavity, the plurality of wave-breaking plates are arranged at intervals along the length direction of the tank body, the telescopic rod is fixed to the top of the tank body and extends into the liquid storage cavity, the elastic bracket is a frame-shaped structure and is connected to the telescopic rod, the elastic membrane covers the elastic bracket, the telescopic rod can drive the elastic bracket to move in a direction toward or away from the wave-breaking plate, the telescopic rod is extended and retracted to drive the elastic bracket and the elastic membrane to move, so that the elastic bracket and the elastic membrane cover the upper surface of the liquid; a plurality of reinforcing rods are arranged at intervals along the length direction of the elastic bracket, and the telescopic rod is connected to the reinforcing rod; A tensioning assembly, comprising a tensioning cable and a plurality of fixing rings, the plurality of fixing rings being arranged along the inner side wall and the inner top wall of the tank body, one end of the tensioning cable being connected to the end of the elastic bracket and extending downward, the other end sequentially passing through the fixing rings to reach the top wall of the tank body and then extending downward to be connected to the reinforcing rod; the tensioning assembly is provided at both ends of the elastic bracket in the length direction; a buffer device is provided between the telescopic rod and the elastic bracket; the buffer device comprises a spring seat and a spring, the spring seat being connected to the end of the telescopic rod, one end of the spring being mounted on the spring seat, and the other end being abutted against and fixed to the elastic bracket; The telescopic rod is a hydraulic rod, and the driving device of the hydraulic rod is arranged outside the tank body. Each hydraulic rod is individually controllable. When the liquid below the elastic membrane in the tank body overflows from the gap between the elastic bracket and the tank body to the upper surface of the elastic membrane, the hydraulic rods at different positions are controlled to work so that the elastic bracket and the elastic membrane are tilted to pour the liquid on the upper surface of the elastic membrane downward.

2. The liquid storage tank according to claim 1, characterized in that: A sealing sleeve is provided on the outer periphery of the telescopic rod, and two ends of the sealing sleeve are respectively connected to the top of the tank body and the elastic bracket and sealed.

3. The liquid storage tank according to claim 1, characterized in that: A mounting seat is provided on the top of the liquid storage tank, a plurality of reinforcing ribs are provided on the mounting seat, and the telescopic rod is installed on the mounting seat.

4. The liquid storage tank according to claim 1, characterized in that A first manhole is provided on the top of the tank body, and a first sealing cover is provided at the first manhole; a second manhole is provided in the middle of the elastic membrane, and a second sealing cover is provided at the second manhole.

5. A liquid tank truck, characterized in that: The liquid storage tank comprises the liquid storage tank as claimed in any one of claims 1 to 4.

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