Emergency release device for top loading crane pipe

Abstract

The utility model discloses an emergency release device for a top loading crane pipe, which comprises an upper valve body and a lower valve body, the upper valve body is arranged on an outer arm, and the lower valve body is arranged on a vertical pipe; an oil circulation channel I is formed in the upper valve body, a one-way sealing valve element is arranged in the oil circulation channel I, a sealing step is arranged on the inner wall of the upper valve body, a sealing part matched with the sealing step is arranged on the one-way sealing valve element, and a compression type elastic mechanism is arranged on the upper valve seat. An oil circulation channel II is arranged in the lower valve body, a guide valve element is arranged in the oil circulation channel II, and a guide column matched with the one-way sealing valve element is arranged in the center of the top of the guide valve element. The one-way sealing valve element and the guide valve element are arranged, the impact face and the sealing table face are arranged on the one-way sealing valve element, the upper valve body is closed and opened, the principle is simple, reliability is achieved, production and manufacturing are easy, repeated use can be achieved, economy and applicability are achieved, and the reliability degree is high.

Description

Technical Field

[0001] The utility model relates to a crane pipe loading vehicle, in particular to an emergency disengagement device for a crane pipe loading vehicle at the top. Background Art

[0002] At present, when the tank truck slips during the filling operation or the through-type trestle tank truck collides with the crane pipe when passing, when the crane pipe strength rating is exceeded, it is very easy to cause the crane pipe to be damaged. Since the crane pipe has no emergency release device, the medium leaks, causing environmental pollution and safety hazards. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an emergency disengagement device for top loading crane pipes which is reasonably designed, convenient to operate, simple and reliable, and can automatically disengage when exceeding a range, in view of the deficiencies in the prior art.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] An emergency release device for a top loading crane pipe, characterized in that the device is arranged between a drop pipe and an outer arm, the drop pipe is connected to the outer arm through the device, the device comprises an upper valve body and a lower valve body, the upper valve body is mounted on the outer arm, the lower valve body is mounted on the drop pipe, the upper valve body is connected to the lower valve body through a breaking bolt, and a valve body sealing ring is provided at the connection between the upper valve body and the lower valve body;

[0006] The top of the upper valve body is provided with an oil inlet I, the bottom of the upper valve body is provided with an oil outlet I, the upper valve body is provided with an oil flow channel I connecting the oil inlet I and the oil outlet I, a one-way sealing valve core is provided in the oil flow channel I, a sealing step protruding radially inward is provided on the inner wall of the upper valve body below the one-way sealing valve core, a sealing portion cooperating with the sealing step is provided on the one-way sealing valve, a valve core sealing ring is provided on the side of the sealing portion cooperating with the sealing step, an upper valve seat is provided in the upper valve body above the one-way sealing valve core, and a compression elastic mechanism for driving the one-way sealing valve core to move downward so that the sealing portion cooperates with the sealing step to seal;

[0007] An oil inlet II is provided at the top of the lower valve body, an oil outlet II is provided at the bottom of the lower valve body, an oil flow channel II is provided in the lower valve body for connecting the oil inlet II and the oil outlet II, a guide valve core is provided in the oil flow channel II, the guide valve core is installed in the lower valve body, and a guide column cooperating with the one-way sealing valve core is provided at the top center of the guide valve core.

[0008] The technical problem to be solved by the utility model can also be achieved through the following technical solution: the elastic mechanism is provided with a compression spring, the upper valve seat is provided with a positioning column for fixing the compression spring, and the top of the one-way sealing valve core is provided with an active channel cooperating with the positioning column.

[0009] The technical problem to be solved by the utility model can also be achieved through the following technical solution: a positioning block is provided at the center of the bottom of the one-way sealing valve core, and a positioning groove matching the positioning block is provided at the center of the top of the guide column.

[0010] The technical problem to be solved by the utility model can also be achieved through the following technical scheme, in which the oil inlet I of the upper valve body and the oil outlet II of the lower valve body are both provided with flange parts that are easy to install, and the flange part of the upper valve body and the connecting flange of the outer arm, and the flange part of the lower valve body and the connecting flange of the vertical pipe are respectively connected by connecting bolts.

[0011] The technical problem to be solved by the utility model can also be achieved through the following technical solution: the one-way sealing valve core is provided with an impact surface facing the oil inlet of the upper valve body, and the one-way sealing valve core on the back of the impact surface is provided with a sealing surface.

[0012] The technical problem to be solved by the utility model can also be achieved through the following technical solution: a retaining spring is installed at the clamping joint between the upper valve seat and the upper valve body to prevent the upper valve seat from shaking.

[0013] Compared with the prior art, the utility model realizes the closing and opening of the upper valve body by providing a one-way sealing valve core and a guide valve core provided with a guide column, and providing an impact surface and a sealing surface on the one-way sealing valve core. The principle is simple, reliable and easy to manufacture, and the entire device is arranged in the upper valve body and the lower valve body, which does not affect the operation of the crane. The emergency release device described in the utility model has a simple principle, is reliable and easy to manufacture, has a reasonable structure, does not require an external force to release the device, is applicable to all top-mounted cranes, can be reused, is economical and applicable, and has a high degree of reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the emergency release device for the top loading crane pipe described in the utility model.

[0015] In the figure: 1-connecting bolt, 2-connecting flange, 3-one-way sealing valve core, 4-compression spring, 5-circlip, 6-upper valve body, 7-valve core sealing ring, 8-breaking bolt, 9-lower valve body, 10-guide column, 11-guide valve core, 12-valve body sealing ring. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0017] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0018] Reference Figure 1 , an emergency release device for a top loading crane pipe, the device is arranged between a drop pipe and an outer arm, the drop pipe is connected to the outer arm through the device, the device comprises an upper valve body 6 and a lower valve body 9, the upper valve body 6 is mounted on the outer arm, the lower valve body 9 is mounted on the drop pipe, the upper valve body 6 is connected to the lower valve body 9 through a breaking bolt 8, and a valve body sealing ring 12 is provided at the joint of the upper valve body 6 and the lower valve body 9;

[0019] The upper valve body 6 is provided with an oil inlet I at the top, an oil outlet I at the bottom, an oil flow channel I communicating with the oil inlet I and the oil outlet I, a one-way sealing valve core 3 is provided in the oil flow channel I, a sealing step protruding radially inward is provided on the inner wall of the upper valve body 6 below the one-way sealing valve core 3, a sealing portion cooperating with the sealing step is provided on the one-way sealing valve, a valve core sealing ring 7 is provided on the side of the sealing portion cooperating with the sealing step, the valve core sealing ring 7 and the valve body sealing ring are O-rings, an upper valve seat is provided in the upper valve body above the one-way sealing valve core 3, and a compression elastic mechanism for driving the one-way sealing valve core to move downward so that the sealing portion cooperates with the sealing step to seal;

[0020] The lower valve body 9 is provided with an oil inlet II at the top and an oil outlet II at the bottom. The lower valve body 9 is provided with an oil circulation channel II connecting the oil inlet II and the oil outlet II. A guide valve core 11 is provided in the oil circulation channel II. The guide valve core 11 is installed in the lower valve body. A guide column 10 cooperating with the one-way sealing valve core is provided at the top center of the guide valve core.

[0021] The elastic mechanism is provided with a compression spring 4, a positioning column for fixing the compression spring 4 is provided on the upper valve seat, and a movable channel cooperating with the positioning column is provided on the top of the one-way sealing valve core 3.

[0022] A positioning block is provided at the center of the bottom of the one-way sealing valve core 3 , and a positioning groove matched with the positioning block is provided at the center of the top of the guide column 10 .

[0023] The oil inlet port Ⅰ of the upper valve body and the oil outlet port Ⅱ of the lower valve body are both provided with flange parts for easy installation. The flange part of the upper valve body and the connecting flange 2 of the outer arm, and the flange part of the lower valve body and the connecting flange 2 of the vertical pipe are connected by connecting bolts 1 respectively.

[0024] The sealing portion of the one-way sealing valve core 3 is provided with an impact surface facing the oil inlet port I of the upper valve body, and the sealing portion on the back of the impact surface is provided with a sealing surface matching the oil outlet port I, so that the oil acts on the one-way sealing valve core to achieve smooth transportation of the oil.

[0025] A retaining spring is installed at the clamping joint between the upper valve seat and the upper valve body to prevent the upper valve seat from shaking, which makes it easy to install the upper valve seat.

[0026] The working principle of the emergency release device described in the utility model is:

[0027] During normal operation, the drop pipe is connected to the lower valve body 9, the weight of the drop pipe is within the tensile strength range of the breaking bolt 8, the one-way sealing valve core 3 is supported by the guide column 10 in the open part of the valve cavity, and the medium can pass smoothly;

[0028] When subjected to external force, the breaking bolt breaks, the upper valve body 6 and the lower valve body 9 are separated, the guide column 10 no longer acts on the valve core, and the one-way sealing valve core 3 is acted upon by the compression spring 4 to instantly seal the upper valve body 6 to form a one-way check valve, and the lower valve body 9 is taken away from the site along with the vertical pipe by the tank truck.

[0029] The emergency release device described in the utility model is used to quickly separate the loading and unloading arm crane pipe from the tank truck in an emergency situation, thereby playing the role of safety protection equipment; it minimizes the risk of accidents to ensure the safety of operators, equipment and facilities; after emergency release, it automatically closes the pipeline to prevent leakage of the medium, thereby reducing the pollution of harmful media to the environment and reducing the leakage loss of precious media; it protects the crane pipe and the tank truck from mechanical damage, thereby reducing maintenance time and costs.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An emergency release device for a top loading crane pipe, characterized in that: The device is arranged between the drop pipe and the outer arm, the drop pipe is connected to the outer arm through the device, the device comprises an upper valve body and a lower valve body, the upper valve body is installed on the outer arm, the lower valve body is installed on the drop pipe, the upper valve body is connected to the lower valve body through a breaking bolt, and a valve body sealing ring is provided at the connection between the upper valve body and the lower valve body; The top of the upper valve body is provided with an oil inlet I, the bottom of the upper valve body is provided with an oil outlet I, the upper valve body is provided with an oil flow channel I connecting the oil inlet I and the oil outlet I, a one-way sealing valve core is provided in the oil flow channel I, a sealing step protruding radially inward is provided on the inner wall of the upper valve body below the one-way sealing valve core, a sealing portion cooperating with the sealing step is provided on the one-way sealing valve, a valve core sealing ring is provided on the side of the sealing portion cooperating with the sealing step, an upper valve seat is provided in the upper valve body above the one-way sealing valve core, and a compression elastic mechanism for driving the one-way sealing valve core to move downward so that the sealing portion cooperates with the sealing step to seal; An oil inlet II is provided at the top of the lower valve body, an oil outlet II is provided at the bottom of the lower valve body, an oil flow channel II is provided in the lower valve body for connecting the oil inlet II and the oil outlet II, a guide valve core is provided in the oil flow channel II, the guide valve core is installed in the lower valve body, and a guide column cooperating with the one-way sealing valve core is provided at the top center of the guide valve core.

2. The emergency release device for top loading crane pipe according to claim 1 is characterized in that: The compression type elastic mechanism comprises a compression spring, a positioning column for fixing the compression spring is arranged on the upper valve seat, and a movable channel cooperating with the positioning column is arranged on the top of the one-way sealing valve core.

3. The emergency release device for top loading crane pipe according to claim 1, characterized in that: A positioning block is arranged at the center of the bottom of the one-way sealing valve core, and a positioning groove matched with the positioning block is arranged at the center of the top of the guide column.

4. The emergency release device for top loading crane pipe according to claim 1, characterized in that: The oil inlet I of the upper valve body and the oil outlet II of the lower valve body are both provided with flanges for easy installation. The flange of the upper valve body and the connecting flange of the outer arm, and the flange of the lower valve body and the connecting flange of the vertical pipe are connected respectively by connecting bolts.

5. The emergency release device for top loading crane pipe according to claim 1, characterized in that: The sealing portion of the one-way sealing valve core is provided with an impact surface facing the oil inlet of the upper valve body, and the sealing portion on the back of the impact surface is provided with a sealing surface.

6. The emergency release device for top loading crane pipe according to claim 1, characterized in that: A clamping spring is installed at the clamping joint between the upper valve seat and the upper valve body to prevent the upper valve seat from shaking.

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