Device for discharging gas in tank of tank car

Abstract

The utility model relates to the field of tank car exhaust, in particular to a tank car in-tank gas exhaust device which comprises a shell and a movable assembly, the bottom of the shell is provided with two oppositely-arranged arc-shaped positioning blocks, the two arc-shaped positioning blocks are matched with the two arc-shaped positioning grooves respectively, the movable assembly is arranged in a cavity, and the movable assembly is arranged in the cavity. The movable assembly comprises a cover plate and a movable rod, the cover plate is fixed in the cavity, the movable rod is arranged in the cavity in an up-and-down moving mode, a sensor is further installed in the center of the side, facing the movable rod, of the cover plate, and the sensor is connected with an external air pump; one end of the connecting disc is matched with the outer wall of the shell, the other end of the connecting disc is arranged outside, and gas in the tank arranged in the cavity can be guided to an external gas pump through the connecting disc. According to the utility model, the advantages of low cost, simple structure and convenience in operation can be realized by effectively utilizing the self structural configuration.

Description

TECHNICAL FIELD

[0001] The application relates to a tank truck exhaust field, in particular to a tank truck tank gas exhaust device. BACKGROUND

[0002] Because the tank body of the tank truck is a large closed space, the tank truck needs to ensure that there is no residual gas in the tank before cleaning, and if there is residual gas in the tank, it is dangerous for personnel to wear protective equipment to enter the tank for cleaning. Therefore, ensuring that the tank is completely discharged is the key technology. The existing tank truck tank gas exhaust method is steam exhaust or vacuum exhaust. The steam exhaust method needs to pay attention to the pressure change in the tank during the exhaust process, which is more troublesome in the operation process. The vacuum exhaust method needs to use special equipment, and the exhaust cost is higher. Therefore, there is a need to provide a low-cost, simple-structured and convenient-to-operate tank truck tank gas exhaust device. SUMMARY

[0003] The main purpose of the application is to provide a tank truck tank gas exhaust device, which can effectively utilize its own structural configuration to realize the advantages of low cost and convenient operation.

[0004] Another purpose of the application is to provide a tank truck tank gas exhaust device, which comprises a shell, the bottom of the shell is provided with two oppositely arranged arc-shaped positioning blocks, the two arc-shaped positioning blocks are matched with two arc-shaped positioning grooves respectively to limit the position of the shell, the top of the shell is also provided with an opening and a cavity, a movable assembly is arranged in the cavity, the movable assembly comprises a cover plate and a movable rod, the cover plate is fixed in the cavity, the movable rod is movably arranged in the cavity, the cover plate is spaced apart from the top of the movable rod by a predetermined distance, a sensor is also arranged on the side of the cover plate facing the movable rod, the sensor is connected with an external air pump, and when the top of the movable rod contacts the detection head of the sensor, the external air pump operates, and a connecting disc is arranged at one end of the outer wall of the shell and at the other end of the shell, the tank gas arranged in the cavity can be guided to the external air pump through the connecting disc, the residual gas in the tank can be squeezed to the above-mentioned shell by injecting water or other solutions into the tank, and the tank can be filled with liquid, and the water injection mode can be used as a preliminary tank cleaning, thereby facilitating the subsequent tank cleaning.

[0005] Another object of the present application is to provide a tank gas discharging device for tank truck, which is simple in structure, convenient to operate, and has high economy, and is easy to popularize and use.

[0006] In order to achieve the above-mentioned at least one object, the present application provides a tank gas discharging device for tank truck, which comprises:

[0007] A shell, the bottom of the shell is provided with two opposite arc-shaped positioning blocks, the two arc-shaped positioning blocks are matched with two arc-shaped positioning grooves respectively to limit the position of the shell, and the top of the shell is further provided with an opening and a cavity,

[0008] A movable assembly is arranged in the cavity, the movable assembly comprises a cover plate and a movable rod, the cover plate is fixed in the cavity, the movable rod is movably arranged in the cavity, the cover plate is spaced apart from the top of the movable rod by a predetermined distance, a sensor is further arranged on the side of the cover plate which is close to the movable rod, the sensor is connected with an external air pump, and the external air pump operates when the top of the movable rod contacts the detection head of the sensor; and

[0009] A connecting disc is arranged on one end of the outer wall of the shell and the other end is arranged outside, and the tank gas arranged in the cavity can be guided to the external air pump through the connecting disc.

[0010] In one or more embodiments of the present application, the side of the cavity is stepped, which has a first step surface and a second step surface, the first step surface is located on the upper side of the second step surface and is spaced apart by a predetermined distance, the cover plate is abutted on the first step surface, and the side of the cover plate which is close to the second step surface is further provided with a connecting hole.

[0011] In one or more embodiments of the present application, the movable assembly further comprises a connecting plate, the connecting plate is fixed in the cavity and abutted on the second step surface, and the middle segment of the rod body is provided with an annular abutment portion, one end of the rod body passes through the insertion hole and the first mounting hole in sequence and is arranged outside the tank truck, and the annular abutment portion is abutted on the side of the connecting plate which is close to the cover plate.

[0012] In one or more embodiments of the present application, the center of the connecting plate is further provided with an insertion hole, the insertion hole penetrates through the connecting plate, and the connecting plate is further provided with a plurality of uniformly distributed flow holes, the plurality of flow holes penetrate through the connecting plate and are located on the circumferential side of the insertion hole.

[0013] In one or more embodiments of the present application, the end of the movable rod placed in the external tank truck is further fixed with a rubber block.

[0014] In one or more embodiments of the present application, the movable assembly further comprises a first elastic member, the first elastic member is sleeved on the rod body, and one end of the first elastic member abuts against the annular abutting portion, and the other end abuts against the connecting hole.

[0015] In one or more embodiments of the present application, the side wall forming the cavity further has a second mounting hole, two ends of the second mounting hole are respectively communicated with the outside and the cavity, and one end of the connecting disc is matched with the second mounting hole.

[0016] In one or more embodiments of the present application, the bottom wall forming the connecting hole further has a first assembly hole, the sensor is fixed in the first assembly hole, and the detection head of the sensor is located in the connecting hole. BRIEF DESCRIPTION OF DRAWINGS

[0017] These and / or other aspects and advantages of the present application will become more apparent and more readily appreciated from the following detailed description of the embodiments of the present application, taken in conjunction with the accompanying drawings in which:

[0018] Figure 1 Fig. 1 shows a structural schematic diagram of a gas discharging device in a tank truck tank.

[0019] Figure 2 Fig. 2 shows a structural schematic diagram of a gas discharging device in a tank truck tank. Figure 1 Fig. 3 shows an enlarged view of A in Fig. 2.

[0020] Figure 3 Fig. 4 shows a schematic diagram of a tank truck. DETAILED DESCRIPTION

[0021] The terms and words used in the following description and claims are not limited to the literal meanings but are only used by the inventors to enable a clear and consistent understanding of the present application. Accordingly, it is apparent to those skilled in the art that the following description of various embodiments of the present application is provided for the purpose of illustration only and is not intended to limit the present application as defined by the appended claims and their equivalents.

[0022] It can be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of one element can be one, and in another embodiment, the number of the element can be multiple, and the term "one" cannot be understood as a limitation on the number.

[0023] Although numerals such as "first," "second," and the like will be used to describe various components, those numerals are not meant to limit those components. The terms are used only to distinguish one component from another. For example, a first component could be termed a second component, and, likewise, a second component could be termed a first component, without departing from the teachings of the present inventive concept. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] The terminology used herein is for the purpose of describing various embodiments only and is not intended to be limiting. As used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "has," when used in this specification, specify the presence of stated features, numbers, steps, operations, components, elements, or a combination thereof, but do not preclude the presence or addition of one or more other features, numbers, steps, operations, components, elements, or groups thereof.

[0025] Reference Figures 1 to 3 , according to the tank gas exhaust device of the tank truck of a preferred embodiment of the present application, it is necessary to point out that the structure of the tank gas exhaust device is shown in Figure 1 , which is arranged on the top of the external tank truck. It should be understood by those skilled in the art that the top of the external tank truck has at least a first mounting hole 100 which can be matched with the present application, and the top of the external tank truck also has two arc-shaped positioning grooves 200 which are located on both sides of the first mounting hole 100. Meanwhile, the present application can be limited in position by the two arc-shaped positioning grooves 200 and is opposite to the first mounting hole 100 located in the center.

[0026] Specifically, the tank gas exhaust device comprises a shell 10, and the structure of the shell 10 is shown in Figure 1 . The bottom of the shell 10 has two oppositely arranged arc-shaped positioning blocks 11 which are matched with the two arc-shaped positioning grooves 200 respectively to limit the position of the shell 10.

[0027] Further, the top of the shell 10 also has an opening and a cavity 101, the opening is in communication with the cavity 101, and the opening is also in communication with the outside. It is worth mentioning that the side surface forming the cavity 101 is in a stepped shape, which has a first step surface and a second step surface, the first step surface is located on the upper side of the second step surface and is spaced apart by a predetermined distance.

[0028] Specifically, the tank truck gas discharge device further comprises a movable assembly arranged in the cavity 101, wherein the movable assembly comprises a cover plate 20 fixed in the cavity 101 and abutting against the first step surface. The cover plate 20 further comprises a connecting hole 201 on the side facing the second step surface. The cover plate 20 and the cavity 101 are connected by welding, and the shell 10 is in the shape of a rectangular shell 10.

[0029] Further, the movable assembly further comprises a connecting plate 30 fixed in the cavity 101 and abutting against the second step surface. The connecting plate 30 and the wall surface forming the cavity 101 are connected by welding. The connecting plate 30 further comprises an insertion hole 301 in the center of the connecting plate 30. The connecting plate 30 further comprises a plurality of flow holes 302 arranged uniformly and penetrating the connecting plate 30. The flow holes 302 are arranged on the side of the insertion hole 301. It is to be noted that the movable assembly further comprises a movable rod movably connected to the connecting plate 30. The movable rod comprises a rod body 41, and the middle section of the rod body 41 comprises a ring-shaped abutting part 42. One end of the rod body 41 penetrates the insertion hole 301 and the first mounting hole 100 and is arranged in the tank truck. The ring-shaped abutting part 42 abuts against the side of the connecting plate 30 close to the cover plate 20.

[0030] Specifically, the end of the movable rod arranged in the tank truck further comprises a rubber block 43. The rubber block 43 is made of neoprene.

[0031] Further, the movable assembly further comprises a first elastic member 50 arranged on the rod body 41. One end of the first elastic member 50 abuts against the ring-shaped abutting part 42, and the other end abuts against the connecting hole 201. It is to be noted that the present application is used in the field of tank truck gas discharge, i.e., water or other solutions are injected into the tank truck until the tank truck is filled with water, and the gas is guided to the present application arranged in the tank truck. When the rubber block 43 arranged on the rod body 41 is in contact with water, the rubber block 43 will float to a predetermined distance, and the ring-shaped abutting part 42 will move to a direction close to the cover plate by a predetermined distance. At this time, the first elastic member 50 will be deformed.

[0032] Further, the side wall forming the cavity 101 also has a second mounting hole, both ends of the second mounting hole are communicated with the outside and the cavity 101 respectively, and a connecting disc 60 is further arranged on the second mounting hole, one end of the connecting disc 60 is matched with the second mounting hole, and the other end is arranged outside. The connecting disc 60 has a shaft rod, and the connecting mode of the shaft rod and the second mounting hole can be implemented as a welding connection. That is, the tank gas entering the cavity 101 can be guided to the outside through the connecting disc 60, that is, through at least one connecting pipe matched with the connecting disc 60, and the connecting pipe and the part of the connecting disc 60 arranged outside are consistent with the structure of the connecting disc 60 arranged outside, and are fixed by bolts. It should be understood by those skilled in the art that the external connecting pipe can be connected to the gas inlet of the external air pump, and the gas outlet of the external air pump is connected to the external gas tank through an air pipe, that is, the gas in the cavity 101 is guided into the external gas tank through the operation of the air pump.

[0033] It is worth mentioning that the bottom wall forming the connecting hole 201 also has a first assembly hole 202, a sensor 70 is fixed in the first assembly hole 202, and the detection head of the sensor 70 is located in the connecting hole 201. It is worth mentioning that the above-mentioned sensor 70 is implemented as a contact sensor 70, that is, when the rod body 41 moves upward by a predetermined distance, the top of the rod body 41 is arranged to be able to contact the sensor 70, and in the process of using the assembly, the sensor 70 is arranged to be able to be connected with the external air pump, so that when the top of the rod body 41 contacts the detection head of the sensor 70, the external air pump operates. In addition, in order to avoid the negative pressure state in the cavity 101 caused by gas extraction, an air inlet assembly 80 is further arranged on the cover plate 20, that is, the cover plate 20 is further provided with a second assembly hole 203, and the second assembly hole 203 is a stepped hole. The air inlet assembly 80 includes a sleeve ring, a steel ball and a second elastic member, the second elastic member is arranged in the stepped hole and is welded with the steel ball, the steel ball abuts against the sleeve ring, and the sleeve ring is fixed on the top of the second assembly hole 203 by welding to limit the position of the steel ball and the second elastic member. That is, if the cavity 101 is in a negative pressure state, the steel ball will extrude the second elastic member under the action of external air pressure, so that the external gas can enter the cavity 101. Similarly, an air outlet assembly (not shown in the figure) can also be arranged on the cover plate 20, which has the same structure as the above-mentioned air inlet assembly and is arranged in the opposite direction. In addition, in the non-use state, a sealing cover can be installed on the top of the shell 10 to close the top of the above-mentioned cavity 101.

[0034] In summary, the tank truck tank gas discharge device based on the embodiment of the present application is illustrated, which provides the tank truck tank gas discharge device with the advantages of low cost, simple structure, convenient operation and the like.

[0035] It is worth mentioning that, in the embodiment of the present application, the tank truck tank gas exhaust device has simple structure, does not involve complex manufacturing process and expensive materials, and has higher economy. At the same time, for the manufacturer, the tank truck tank gas exhaust device provided by the present application is easy to produce and has low cost, which is more conducive to controlling the production cost, and is further conducive to product promotion and use.

[0036] It should be understood by those skilled in the art that the above description and the embodiments of the present application shown in the drawings are only examples and do not limit the present application. The purpose of the present application has been completely and effectively achieved. The function and structural principle of the present application have been shown and described in the embodiments, and the embodiments of the present application can be any deformation or modification without departing from the principle.

Claims

1. A gas discharge device for a tanker truck, disposed on the top of an external tanker truck, the top of the external tanker truck having at least one first mounting hole and two arc-shaped positioning grooves, the two arc-shaped positioning grooves being located on both sides within the first mounting hole, characterized in that, The tanker truck internal gas discharge device includes: A housing has two opposing arc-shaped positioning blocks at its bottom, each of which engages with two arc-shaped positioning grooves to define the position of the housing. The top of the housing also has an opening and a cavity. A movable component is disposed within the cavity, comprising a cover plate and a movable rod. The cover plate is fixed to the cavity, and the movable rod is movably disposed within the cavity, with a predetermined distance between the top of the cover plate and the top of the movable rod. A sensor is mounted at the center of the side of the cover plate facing the movable rod. The sensor is connected to an external air pump, and the external air pump operates when the top of the movable rod contacts the detection head of the sensor. A connecting plate, one end of which mates with the outer wall of the housing, and the other end is placed outside, so that the gas inside the tank placed in the cavity can be guided to an external air pump through the connecting plate.

2. The tanker gas discharge device according to claim 1, wherein the side of the cavity is stepped, having a first stepped surface and a second stepped surface, the first stepped surface being located above the second stepped surface and spaced apart by a predetermined distance, and the cover plate abutting against the first stepped surface, and the side of the cover plate facing the second stepped surface also having a connecting hole.

3. The tanker truck gas discharge device according to claim 2, wherein the movable component further includes a connecting plate, the connecting plate is fixed in the cavity and abuts against the second step surface, the center of the connecting plate also has an insertion hole, the insertion hole penetrates the connecting plate, and the movable rod includes a rod body, the middle section of the rod body has an annular abutment portion, one end of the rod body passes through the insertion hole and the first mounting hole in sequence, and is placed inside the external tanker truck, while the annular abutment portion abuts against the side of the connecting plate near the cover plate.

4. The tanker truck gas discharge device according to claim 3, wherein the center of the connecting plate further has an insertion hole, the insertion hole penetrates the connecting plate, and the connecting plate further has a plurality of evenly distributed flow holes, all of which penetrate the connecting plate and are located around the insertion hole.

5. The tanker truck gas discharge device according to claim 4, wherein a rubber block is also fixedly installed at the end of the movable rod placed inside the external tanker truck.

6. The tanker truck gas discharge device according to claim 5, wherein the movable component further includes a first elastic member, the first elastic member being sleeved on the rod body, and one end of the first elastic member abutting against the annular abutting portion, and the other end abutting against the connecting hole.

7. The tanker truck gas discharge device according to claim 6, wherein the side wall forming the cavity further has a second mounting hole, the two ends of the second mounting hole are respectively connected to the outside and the cavity, and one end of the connecting plate cooperates with the second mounting hole.

8. The tanker truck gas discharge device according to claim 7, wherein the bottom wall forming the connecting hole further has a first mounting hole, the sensor is fixed in the first mounting hole, and the detection head of the sensor is located in the connecting hole.

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