A self-adapting filling head for liquid tankers

Abstract

The application discloses a kind of liquid tank car self-adapting filling head, belong to automatic filling system technical field.It includes base plate, conical head and injection pipe, the base plate is set on injection pipe, and is connected with injection pipe by gimbals, the conical head is fixedly sleeved on injection pipe, the basic and conical head between being provided with self-adapting adjusting mechanism, the conical head is provided with cavity, its bottom is provided with air inlet, top is provided with discharge port, the discharge port is communicated with external waste recovery pipeline.The application adopts spherical pair and compression spring to realize self-adapting field environmental factor, to reach with tank car filling mouth airtight, change original linear seal mode, this kind of self-adapting filling head can realize face seal in the case where positioning progress allows, greatly improve the influence on surrounding environment in the filling process due to sealing problem.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of liquid tank car self-adapting filling head, belong to automatic filling system technical field. BACKGROUND

[0002] At present, the automatic loading of liquid tank car in market mostly adopts crane pipe mode, also called fluid loading and unloading arm, it is connected with rigid pipe and elbow by rotary joint to replace old hose connection, since the end of crane pipe is rigid pipe, it has the problem of poor positioning accuracy, when filling head is aligned with tank car, there will be larger error;At the same time, factors such as uneven ground, different tire pressure before and after tank car and other factors in field environment will affect the accuracy when tank car filling port is connected with crane pipe, it cannot seal tank car filling port, so part of waste gas in tank car will be discharged into atmosphere during automatic filling process, causing pollution to surrounding environment. SUMMARY

[0003] The technical problem to be solved by the present application is to provide a kind of liquid tank car self-adapting filling head, which solves the problem of poor positioning accuracy of crane pipe and part of waste gas being discharged into atmosphere to cause pollution.

[0004] The technical problem to be solved by the present application is solved by the following technical scheme:

[0005] A kind of liquid tank car self-adapting filling head, including base plate, conical head and injection pipe, the base plate is sleeved on injection pipe, and is movably connected with injection pipe by universal head, the conical head is fixedly sleeved on injection pipe, self-adapting adjusting mechanism is arranged between the base plate and the conical head, the conical head is provided with cavity, the bottom is provided with air inlet, and the top is provided with discharge port, the discharge port is communicated with external waste gas recovery pipeline.

[0006] As a preferred example, the self-adapting adjusting mechanism includes sliding push rod and compression spring, the compression spring is sleeved on the sliding push rod, for limiting the expansion and contraction of sliding push rod, one end of the sliding push rod is connected with the base plate, and the other end corresponds to the end face of the conical head.

[0007] As a preferred example, the self-adapting adjusting mechanism further includes roller, the roller is connected with one end of the sliding push rod, and the roller is in contact with the end face of the conical head.

[0008] As a preferred example, the self-adapting adjusting mechanism is provided with three groups, and is evenly distributed in annular on the base plate.

[0009] As a preferred example, position sensor is arranged on the sliding push rod.

[0010] As a preferred example, corrugated pipe is fixedly connected at the discharge port of the conical head, the other end of the corrugated pipe penetrates through the base plate and is fixedly connected.

[0011] As a preferred example, the top end of the conical head is provided with a step, and the step is provided with a sealing flat gasket.

[0012] The beneficial effects of the present application are: the present application uses spherical pair and compression spring to realize self-adaption to field environment factors to achieve sealing with tank truck filling port, changes the original linear sealing mode, and the self-adaptive filling head can realize face sealing under the condition that positioning progress is allowed, and greatly improves the influence on surrounding environment in the filling process due to sealing problem. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a structural schematic view of the present application;

[0014] Figure 2 is a structural schematic view of the present application; Figure 1 is a structural schematic view of the present application;

[0015] Figure 3 is a three-dimensional structural schematic view of the present application from the bottom perspective;

[0016] Figure 4 is a position schematic view of the present application in use.

[0017] In the figure: outer sleeve 1, universal head 2, injection pipe 3, conical head 4, base plate 5, roller 6, sliding push rod 7, compression spring 8, corrugated pipe 9, sealing flat gasket 10, end cover 11, air inlet hole 12. DETAILED DESCRIPTION

[0018] In order to easily understand the technical means, creative characteristics, purposes and effects of the present application, the present application is further described below in combination with specific drawings.

[0019] As Figures 1-4As shown, a liquid tank truck self-adaptive filling head, including base plate 5, conical head 4 and injection pipe 3, the center of base plate 5 is provided with a through hole, and an outer sleeve 1 is arranged at the through hole, a universal joint 2 is installed inside the outer sleeve 1, which is similar to a joint bearing, and is sleeved on the injection pipe 3 to form a spherical pair, or a spherical bearing, spherical roller bearing and the like are used, the purpose is to movably connect the base plate 5 and the injection pipe 3, which can move in multiple directions, and the freedom within a certain angle of the spherical pair is used to adapt to the filling port; the conical head 4 is directly fixed and sleeved on the injection pipe 3, in order to realize self-adaptive combination with the tank truck filling port, a self-adaptive adjusting mechanism is arranged between the base plate 5 and the conical head 4, in one of the specific embodiments, the self-adaptive adjusting mechanism includes a sliding push rod 7 and a compression spring 8, the sliding push rod 7 penetrates the base plate 5 and is slidably connected thereto, one end of the sliding push rod 7 penetrating the base plate 5 is fixedly connected with an end cover 11, so that it cannot fall off from the base plate 5, at the same time, the compression spring 8 is sleeved on the sliding push rod 7, the top of the compression spring 8 abuts against the base plate 5, and the bottom abuts against the protruding part of the sliding push rod 7, for limiting the sliding of the sliding push rod 7 on the base plate 5, in another embodiment, the sliding push rod 7 is composed of two sections of sleeves, the two sections of sleeves are slidably sleeved, one end of one section of the sleeves is fixedly connected with the base plate 5, and the compression spring 8 is sleeved on the two sections of sleeves, the arrangement method is consistent with the above embodiment, for limiting the sliding between the two sections of sleeves, and the end of the sliding push rod 7 away from the base plate 5 corresponds to the end face of the conical head 4;

[0020] Further, the end of the sliding push rod 7 away from the base plate 5 is provided with a roller 6 or an outer spherical bearing, which can reduce the wear and friction between the sliding push rod 7 and the conical head 4 when it contacts the end face of the conical head 4, so that the base plate 5 and the self-adaptive adjusting mechanism move more smoothly. The above-mentioned self-adaptive adjusting mechanism is generally provided with three groups, which are uniformly distributed in a ring shape on the base plate 5, and a position sensor is arranged on the sliding push rod 7, the position sensor can be directly used as a commercially available product, such as a traditional travel switch, an electromagnetic type, an optical type, a capacitive type, a Hall type and the like, considering the assembly problem, a suitable model can be selected for installation, which will not be described in detail here. The self-adaptive filling head is pressed down by using the power of the external alignment mechanism (the original crane pipe alignment mechanism), since the three sliding push rods 7 are independent, when the filling head is pressed to a certain distance, the position sensor above starts to work, the alignment mechanism stops working, and the filling starts, and the alignment mechanism and the self-adaptive adjusting mechanism reset the filling head after the filling is completed.

[0021] In order to prevent waste gas from being discharged nowhere, the conical head 4 is provided with a cavity, the bottom of which is provided with an air inlet 12, and the top is provided with a discharge port, in one of the specific embodiments, the discharge port of the conical head 4 is fixedly connected with a stainless steel corrugated pipe 9, the other end of the corrugated pipe 9 penetrates the base plate 5 and is fixedly connected, and is in communication with the external waste gas recovery pipeline. Figure 4The liquid is automatically loaded through the injection pipe 3, the waste gas in the tank truck is collected into the conical head 4 through the air inlet 12, and is discharged through the discharge port. Since there is a certain degree of freedom, the stainless steel bellows 9 is connected to the filling head base plate 5 through the flange above the discharge port, and then the waste gas recovery pipeline is connected through the waste gas exhaust pipe to concentrate the exhaust. In another embodiment, the top end of the conical head 4 is provided with a step, and the sealing flat gasket 10 is arranged at the step. When the filling head is docked with the tank truck, the sealing flat gasket 10 is in close contact with the filling port of the tank truck, which improves the sealing problem between the filling port and the filling head during the filling process, and further changes the sealing form of the two during the existing crane pipe filling: the original is linear sealing, and the adaptive filling head is face sealing.

[0022] In summary, the self-adaptive filling head has simple structure, can be directly installed in the front section of the crane pipe, can improve the sealing problem caused by site factors and crane pipe positioning accuracy, and can be applied to other alignment devices such as gantry robots or industrial robots. When connected with the crane pipe, the base plate 5 is connected and fixed with the crane pipe flange, and then a section of hose is connected between the crane pipe and the injection pipe 3, so that the crane pipe is connected with the filling port of the tank truck in a flexible way, effectively prolonging the service life of the filling head. The present application is designed to meet the needs of on-site liquid automatic filling. Due to site factors, alignment positioning factors and other factors, the original filling port docking device cannot meet the needs of on-site automatic loading. The self-adaptive filling head is designed for this situation. The device can flexibly dock the filling port, and the sealing form adopts face sealing, which greatly improves the service life of the filling head. After filling is completed, the self-resetting can be completed through the three groups of push rod mechanisms, preparing for the next automatic filling.

[0023] The basic principles and main features of the present application and the advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and various changes and improvements can be made without departing from the spirit and scope of the present application. These changes and improvements fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A self-adapting filling head for liquid tankers, characterized in that: The utility model relates to a kind of injection head, including substrate (5), conical head (4) and injection pipe (3), the substrate (5) is set on injection pipe (3), and is connected with injection pipe (3) by gimbals (2) movably, the conical head (4) is fixedly sleeved on injection pipe (3), adaptive adjusting mechanism is provided between the substrate (5) and conical head (4), cavity is provided on the conical head (4), its bottom is provided with air inlet (12), top is provided with discharge port, the discharge port is communicated with external waste recovery pipeline; The adaptive adjusting mechanism includes a sliding push rod (7) and a compression spring (8), the compression spring (8) is sleeved on the sliding push rod (7), for limiting the expansion of the sliding push rod (7), one end of the sliding push rod (7) is connected with the substrate (5), and the other end is corresponding to the end face of the conical head (4); The adaptive adjusting mechanism further includes a roller (6), the roller (6) is connected with one end of the sliding push rod (7), and the roller (6) is in contact with the end face of the conical head (4); The top end of the conical head (4) is provided with a step, and a sealing flat gasket (10) is arranged at the step.

2. A self-adapting filling head for liquid tankers according to claim 1, characterized in that: The adaptive adjusting mechanism is provided with three groups, which are evenly distributed in a ring shape on the substrate (5).

3. A self-adapting filling head for liquid tankers according to claim 2, characterized in that: A position sensor is arranged on the sliding push rod (7).

4. A self-adapting filling head for liquid tankers according to claim 1, characterized in that: The discharge port of the conical head (4) is fixedly connected with a bellows (9), and the other end of the bellows (9) penetrates the substrate (5) and is fixedly connected.

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