Anti-theft device for oil tank of container semitrailer

Abstract

The utility model relates to the technical field of oil tank theft prevention, in particular to a container semitrailer oil tank theft prevention device which comprises an oil tank body and an oil filling pipe, an isolation protection mechanism is arranged in the oil tank body, a sealing cover protection mechanism is arranged in the oil filling pipe, and a monitoring alarm mechanism is arranged on the side edge of the sealing cover protection mechanism. When the anti-theft device for the oil tank of the container semitrailer is used, the working principle of the rod type floating ball liquid level meter is matched with the arrangement of the controller and the alarm, the design that the controller compares data fed back by the signal converter with data transmitted last time is utilized, and when the fluctuation range of the comparison data exceeds the set range, the anti-theft device is started. At the moment, it is indicated that the phenomenon that a thief steals oil exists when the liquid level of gasoline in the oil tank drops too fast in a short time, the controller can automatically control the alarm to sound at the moment, then attention of surrounding pedestrians is attracted in the alarm sound mode, and meanwhile the effect of driving the thief away is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil tank anti-theft, in particular to an oil tank anti-theft device for a container semi-trailer. Background Art

[0002] Gasoline in the fuel tank is the necessary fuel for the normal operation of the vehicle. Due to the high price of oil and the large amount of oil in the fuel tank of the container semi-trailer, the fuel tank of the container semi-trailer has become the target of thieves. The anti-theft device of the fuel tank of the container semi-trailer is an anti-theft device installed on the fuel tank cover, which helps to improve the safety of the vehicle, reduce the risk of theft, and ensure the safety of the vehicle and cargo;

[0003] Since the existing container semi-trailer fuel tanks are directly installed under the vehicle body, the sealing method is only to seal the fuel tanks through the threaded installation of the sealing cover. The overall protection effect is poor and the fuel tanks cannot be prevented from being stolen by criminals. However, the existing devices have not made improvements to this problem, and the overall practical effect is poor. Utility Model Content

[0004] The utility model aims to solve the above-mentioned problem and proposes an anti-theft device for the fuel tank of a container semi-trailer, which improves the existing container semi-trailer fuel tanks which are directly installed under the vehicle body, and the sealing method thereof is only to seal and protect the fuel tank by threaded installation of the sealing cover, and the overall protection effect is poor, and the problem of the fuel tank being stolen by lawless elements cannot be prevented.

[0005] A container semi-trailer oil tank anti-theft device comprises an oil tank body and an oil filling pipe: an oil inlet is formed at the top outer wall of the oil tank body, and an oil filling pipe is provided on the top outer wall of the oil tank body located at the oil inlet, an isolation protection mechanism is provided inside the oil tank body, a sealing protection mechanism is provided inside the oil filling pipe, a monitoring alarm mechanism is provided on the side of the sealing protection mechanism, the isolation protection mechanism comprises a protection box and a through groove, a protection box is provided on the top inner wall of the oil tank body located at the oil inlet, and through grooves are provided on the outer walls on both sides of the top of the protection box.

[0006] Preferably, the top outer wall of the protection box is configured as an open structure, and the bottom outer wall of the protection box is configured as a porous filter structure.

[0007] Preferably, the sealing cap protection mechanism includes a mounting ring, a threaded groove and a mounting cover, the inner wall of the side of the oil filling pipe at the bottom end is provided with a mounting ring, the top outer wall of the mounting ring is provided with a threaded groove, and a mounting cover is provided above the mounting ring.

[0008] Preferably, a threaded ring is provided on the outer wall of the bottom end of the mounting cover, a threaded mounting is performed between the threaded ring and the threaded groove, and an interference groove is provided on the outer wall of the top end of the mounting cover.

[0009] Preferably, the monitoring alarm mechanism comprises a sensing connecting rod and a floating ball, the sensing connecting rod is arranged inside the oil tank body, and the floating ball is arranged outside the sensing connecting rod.

[0010] Preferably, the top outer wall of the sensing connecting rod is connected to the bottom outer wall of the wiring housing, and the wiring housing is connected to the top outer wall of the oil tank body.

[0011] Preferably, a signal converter is installed on the side outer wall of the wiring housing, a controller and a power supply are provided on the top outer wall of the oil tank body, and a protective cover is provided outside the controller and the power supply.

[0012] Preferably, the protective cover is connected to the top outer wall of the oil tank body, and an alarm is provided on the top outer wall of the protective cover.

[0013] The beneficial effects of the utility model are:

[0014] 1. When the container semi-trailer oil tank anti-theft device is in use, it uses the working principle of the rod-type float liquid level gauge to cooperate with the settings of the controller and the alarm, and uses the design of comparing the data fed back by the controller to the last transmission data of the signal converter. When the fluctuation range of the comparison data exceeds the set range, it indicates that the gasoline level in the oil tank drops too fast in a short period of time and there is a phenomenon of thieves stealing oil. At this time, the controller will automatically control the alarm to sound, and then attract the attention of pedestrians around by the way of the alarm sounding, and at the same time play the effect of driving away the oil thieves, and the overall practical effect is strong;

[0015] 2. When the container semi-trailer fuel tank anti-theft device is in use, a protective box is set below the fuel inlet to protect the fuel tank. When the thief's oil-stealing pipe extends into the fuel tank, the pipe cannot penetrate into the bottom of the fuel tank due to the blocking effect of the protective box. At the same time, the pipe is difficult to adjust upward against the inside of the protective box. The design of opening a through groove on the top of the protective box ensures smooth oil inlet while playing a protective role. Combined with the embedded installation of the sealing cover inside the fuel inlet pipe, the thief cannot remove the sealing cover from the inside of the fuel inlet pipe with his bare hands, thereby greatly reducing the occurrence of gasoline theft in the fuel tank, and the overall practical effect is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the overall sectional three-dimensional structure of the utility model;

[0018] Figure 3 It is a three-dimensional structural schematic diagram of the isolation and protection mechanism of the utility model;

[0019] Figure 4 For the utility model Figure 3 A in the middle is an enlarged schematic diagram of the three-dimensional structure;

[0020] Figure 5 It is a three-dimensional structural diagram of the monitoring alarm mechanism of the utility model.

[0021] In the figure: 1. Oil tank body; 2. Oil filling pipe; 3. Isolation protection mechanism; 31. Protection box; 32. Through groove; 4. Cover protection mechanism; 41. Mounting ring; 42. Threaded groove; 43. Mounting cover; 44. Threaded ring; 45. Resistance groove; 5. Monitoring and alarm mechanism; 51. Sensing connecting rod; 52. Float; 53. Wiring housing; 54. Signal converter; 55. Controller; 56. Power supply; 57. Protective cover; 58. Alarm. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] When implementing: Figure 1-5 As shown, an anti-theft device for a container semi-trailer oil tank comprises a tank body 1 and an oil filling pipe 2: an oil inlet is formed at the top outer wall of the tank body 1, and an oil filling pipe 2 is arranged on the top outer wall of the tank body 1 located at the oil inlet, an isolation protection mechanism 3 is arranged inside the tank body 1, a sealing protection mechanism 4 is arranged inside the oil filling pipe 2, a monitoring alarm mechanism 5 is arranged on the side of the sealing protection mechanism 4, the isolation protection mechanism 3 comprises a protection box 31 and a through groove 32, a protection box 31 is arranged on the top inner wall of the tank body 1 located at the oil inlet, through grooves 32 are formed on the outer walls on both sides of the top of the protection box 31, the top outer wall of the protection box 31 is arranged as an opening structure, and the bottom outer wall of the protection box 31 is arranged as a porous filter structure; the setting of the protection box 31 here prevents lawless elements from extending the oil stealing pipe to the bottom of the tank, and at the same time, the bottom end of the protection box 31 is arranged as a porous filter structure, which cooperates with the setting of the through groove 32 so that the tank can be normally filled with oil.

[0024] The sealing cap protection mechanism 4 includes a mounting ring 41, a threaded groove 42 and a mounting cover 43. The inner wall of the side of the oil filling pipe 2 at the bottom is provided with a mounting ring 41, the top outer wall of the mounting ring 41 is provided with a threaded groove 42, and the mounting cover 43 is provided above the mounting ring 41. The bottom outer wall of the mounting cover 43 is provided with a threaded ring 44, and the threaded ring 44 and the threaded groove 42 are threadedly mounted. The top outer wall of the mounting cover 43 is provided with a resistance groove 45; when it is necessary to open the mounting cover 43 for refueling, it is necessary to use a hexagonal wrench to get stuck in the resistance groove 45 to drive the inside, and then rotate the hexagonal wrench. At this time, the hexagonal wrench is turned to open the mounting cover 43. The angle wrench conflicts with the interference groove 45, and when the hexagonal wrench is rotated, the installation cover 43 will be automatically driven to rotate. When the installation cover 43 is rotated until the threaded ring 44 is completely disengaged from the inside of the threaded groove 42, the installation cover 43 can be directly taken out from the inside of the oil filling pipe 2. After refueling, when the installation cover 43 needs to be reinstalled into the inside of the oil filling pipe 2, the installation cover 43 needs to be placed in the inside of the oil filling pipe 2 first, and then the installation cover 43 is rotated with the help of the hexagonal wrench. When the installation cover 43 is rotated, the threaded ring 44 will be automatically driven to rotate and then screwed into the inside of the threaded groove 42 to complete the locking installation.

[0025] The monitoring alarm mechanism 5 includes a sensing connecting rod 51 and a floating ball 52. The sensing connecting rod 51 is arranged inside the fuel tank body 1, and the floating ball 52 is arranged outside the sensing connecting rod 51. The top outer wall of the sensing connecting rod 51 is connected to the bottom outer wall of the wiring housing 53, and the wiring housing 53 is connected to the top outer wall of the fuel tank body 1. A signal converter 54 is installed on the side outer wall of the wiring housing 53. A controller 55 and a power supply 56 are arranged on the top outer wall of the fuel tank body 1. A protective cover 57 is arranged outside the controller 55 and the power supply 56. The protective cover 57 is connected to the top outer wall of the fuel tank body 1, and an alarm 58 is arranged on the top outer wall of the protective cover 57. When the liquid level in the fuel tank body 1 changes, the floating ball 52 is arranged outside the sensing connecting rod 51. The top outer wall of the sensing connecting rod 51 is connected to the bottom outer wall of the wiring housing 53. The wiring housing 53 is connected to the top outer wall of the fuel tank body 1. A signal converter 54 is installed on the side outer wall of the wiring housing 53. A controller 55 and a power supply 56 are arranged on the top outer wall of the fuel tank body 1. A protective cover 57 is arranged outside the controller 55 and the power supply 56. The protective cover 57 is connected to the top outer wall of the fuel tank body 1, and an alarm 58 is arranged on the top outer wall of the protective cover 57. The ball 52 will change synchronously with the change of the liquid level, and the sensing connecting rod 51 will record the position of the float 52 in real time. The main function of the signal converter 54 here is to convert the liquid level information measured by the sensing connecting rod 51 into a standardized signal output to the controller 55, and then the controller 55 monitors the data fed back by the signal converter 54 and compares it with the last transmitted data. When the comparison data exceeds the set range, the controller 55 will automatically control the alarm 58 to sound. The power supply 56 here is set to power the electrical components in the device, and the protective cover 57 is set to isolate and protect the power supply 56. The specific wiring method can adopt existing technical means and will not be described in detail here.

[0026] When the utility model is in use, the setting of the protection box 31 here prevents lawless elements from extending the oil stealing pipe to the bottom of the oil tank. At the same time, the bottom end of the protection box 31 is set to a porous filter structure with the setting of the through groove 32 so that the oil tank can be normally filled with oil; when it is necessary to open the installation cover 43 for refueling, it is necessary to use a hexagonal wrench to get stuck in the abutment groove 45 to drive the inside, and then rotate the hexagonal wrench. At this time, the hexagonal wrench is in conflict with the abutment groove 45, and the hexagonal wrench will automatically drive the installation cover 43 to rotate when the installation cover 43 is rotated. When the installation cover 43 is rotated until the threaded ring 44 is completely disengaged from the inside of the threaded groove 42, the installation cover 43 can be directly taken out from the inside of the oil filling pipe 2. After refueling, when the installation cover 43 needs to be reinstalled into the inside of the oil filling pipe 2, it is first necessary to put the installation cover 43 into the inside of the oil filling pipe 2, and then use the hexagonal wrench to rotate the installation cover 43. When the installation cover 43 is rotated, it will automatically drive the threaded ring 44 to rotate and screw it into the inside of the threaded groove 42 to complete the locking installation;

[0027] When the liquid level in the tank body 1 changes, the float 52 will change synchronously with the change of the liquid surface, and the sensing connecting rod 51 will record the position of the float 52 in real time. The signal converter 54 here mainly converts the liquid level information measured by the sensing connecting rod 51 into a standardized signal and outputs it to the controller 55. Then the controller 55 monitors the data fed back by the signal converter 54 and compares it with the last transmitted data. When the comparison data exceeds the set range, the controller 55 will automatically control the alarm 58 to sound. The power supply 56 here is set to power the electrical components in the device, and the protective cover 57 is set to isolate and protect the power supply 56. The specific wiring method can adopt existing technical means and will not be described in detail here.

[0028] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description 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 may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A container semi-trailer fuel tank anti-theft device, characterized in that: The invention comprises an oil tank body (1) and an oil filling pipe (2): an oil inlet is formed at the top outer wall of the oil tank body (1), and an oil filling pipe (2) is arranged on the top outer wall of the oil tank body (1) at the oil inlet; an isolation protection mechanism (3) is arranged inside the oil tank body (1); a sealing cover protection mechanism (4) is arranged inside the oil filling pipe (2); a monitoring alarm mechanism (5) is arranged on the side of the sealing cover protection mechanism (4); the isolation protection mechanism (3) comprises a protection box (31) and a through groove (32); a protection box (31) is arranged on the top inner wall of the oil tank body (1) at the oil inlet; and through grooves (32) are formed on the outer walls on both sides of the top of the protection box (31).

2. The anti-theft device for the oil tank of a container semi-trailer according to claim 1 is characterized by: The top outer wall of the protection box (31) is configured as an open structure, and the bottom outer wall of the protection box (31) is configured as a porous filter structure.

3. The anti-theft device for the oil tank of a container semi-trailer according to claim 1 is characterized by: The sealing cover protection mechanism (4) comprises a mounting ring (41), a threaded groove (42) and a mounting cover (43); the mounting ring (41) is arranged on the inner wall of the side of the oil filling pipe (2) at the bottom end; the threaded groove (42) is arranged on the outer wall of the top end of the mounting ring (41); and the mounting cover (43) is arranged above the mounting ring (41).

4. The anti-theft device for the oil tank of a container semi-trailer according to claim 3 is characterized by: The outer wall of the bottom end of the installation cover (43) is provided with a threaded ring (44), and the threaded ring (44) and the threaded groove (42) are threadedly installed. The outer wall of the top end of the installation cover (43) is provided with a resistance groove (45).

5. The anti-theft device for the oil tank of a container semi-trailer according to claim 1 is characterized by: The monitoring alarm mechanism (5) comprises a sensing connecting rod (51) and a floating ball (52); the sensing connecting rod (51) is arranged inside the oil tank body (1), and the floating ball (52) is arranged outside the sensing connecting rod (51).

6. The anti-theft device for the oil tank of a container semi-trailer according to claim 5, characterized in that: The top outer wall of the sensing connecting rod (51) is connected to the bottom outer wall of the wiring housing (53), and the wiring housing (53) is connected to the top outer wall of the oil tank body (1).

7. The anti-theft device for the oil tank of a container semi-trailer according to claim 6, characterized in that: A signal converter (54) is installed on the side outer wall of the wiring housing (53), a controller (55) and a power supply (56) are arranged on the top outer wall of the oil tank body (1), and a protective cover (57) is arranged outside the controller (55) and the power supply (56).

8. The anti-theft device for the oil tank of a container semi-trailer according to claim 7, characterized in that: The protective cover (57) is connected to the top outer wall of the oil tank body (1), and an alarm (58) is provided on the top outer wall of the protective cover (57).

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