Fine adjustment joint for crane pipe

Abstract

The utility model relates to a fine adjustment connector for a crane pipe. The fine adjustment connector comprises a lower butt joint pipe, a telescopic pipe, a lower fixing ring, a fixing pipe, a lower telescopic driver, an upper butt joint pipe, an upper fixing ring and an upper telescopic driver. The telescopic pipe is fixedly connected with the lower butt joint pipe; the lower fixing ring is sleeved outside the telescopic pipe, and the lower fixing ring is fixedly connected with the lower butt joint pipe; the fixed pipe is telescopically connected with the telescopic pipe; the lower telescopic driver is hinged to the lower fixing ring, and the telescopic end of the lower telescopic driver is hinged to the fixing pipe; the upper butt joint pipe is telescopically connected with the fixed pipe; the upper fixing ring is sleeved outside the upper butt joint pipe, and the upper fixing ring is fixedly connected with the fixing pipe; the upper telescopic driver is hinged to the upper fixing ring, and the telescopic end of the upper telescopic driver is hinged to the upper butt joint pipe. The butt-joint device can effectively improve the butt-joint precision of the large loading arm and the oil tank truck, saves time and labor, and improves the butt-joint efficiency of the large loading arm and the oil tank truck.

Description

Technical Field

[0001] The utility model relates to the technical field of crane pipes for liquid chemical industry, in particular to a fine-adjustment joint for the crane pipes. Background Art

[0002] The crane arm is a specialized piece of equipment used in the petrochemical industry for fluid loading and unloading. It uses a rotary joint to connect rigid pipes and elbows, replacing the traditional hose connection. It offers high safety, flexibility, and a long lifespan.

[0003] Currently, the docking of large crane pipes and refueling tank trucks is mainly done manually or mechanically. In the case of mechanical docking, the long joint of the large crane pipe requires constant remote control to align the joint with the refueling tank truck, which is not very accurate and is time-consuming and labor-intensive. Utility Model Content

[0004] Based on this, it is necessary to provide a fine-tuning joint for a crane pipe to address the problem that when existing machinery is docked, the joint of the large crane pipe is relatively long and requires continuous remote control to dock the joint with the refueling tanker, resulting in low docking accuracy and time-consuming and labor-intensive work.

[0005] A fine-adjustment joint for a crane pipe, comprising:

[0006] Lower butt joint;

[0007] a telescopic tube, the telescopic tube being fixedly connected to the lower butt joint tube;

[0008] A lower fixing ring, the lower fixing ring being sleeved on the outside of the telescopic tube and fixedly connected to the lower butt-jointing tube;

[0009] a fixed tube, the fixed tube being telescopically connected to the telescopic tube;

[0010] a lower telescopic actuator, wherein the lower telescopic actuator is hinged to the lower fixing ring, and a telescopic end of the lower telescopic actuator is hinged to the fixing tube;

[0011] an upper butt joint pipe, the upper butt joint pipe being telescopically connected to the fixed pipe;

[0012] an upper fixing ring, the upper fixing ring being sleeved on the outer side of the upper butt joint tube and fixedly connected to the fixing tube; and

[0013] An upper telescopic driver is hinged to the upper fixing ring, and a telescopic end of the upper telescopic driver is hinged to the upper butt joint tube.

[0014] The above-mentioned crane pipe uses a fine-tuning joint. The upper telescopic drive drives the upper docking pipe to move upward to achieve docking between the upper docking pipe and the large crane pipe. The lower telescopic drive drives the telescopic pipe and the lower docking pipe to move downward to enable the lower docking pipe to dock with the tank truck, effectively improving the docking accuracy between the large crane pipe and the tank truck, saving time and effort, and improving the docking efficiency between the large crane pipe and the tank truck.

[0015] In one embodiment, the lower butt joint tube includes a lower butt joint tube portion, a butt joint arc tube portion connected to the lower butt joint tube portion, and a butt joint positioning ring portion connected to the butt joint arc tube portion, and the lower fixing ring is fixedly connected to the butt joint ring portion.

[0016] In one embodiment, the telescopic tube includes a fixed arc tube portion, a fixed straight tube portion connected to the fixed arc tube portion, and a limiting ring portion connected to the fixed straight tube portion. The end of the fixed arc tube portion away from the fixed straight tube portion extends into the lower docking tube, the fixed arc tube portion abuts against the docking arc tube portion, the lower fixed ring is sleeved on the outside of the fixed arc tube portion, the fixed straight tube portion extends into the fixed tube, and the outer wall of the limiting ring portion abuts against the inner wall of the fixed tube.

[0017] In one embodiment, the fixed tube includes a main tube portion, an upper arc tube portion connected to the main tube portion, and a fixed ring portion connected to the upper arc tube portion. The outer wall of the limiting ring portion abuts against the inner wall of the main tube portion. The main tube portion is provided with a convex ring convex inward along its inner wall. The convex ring cooperates with the limiting ring portion to limit the telescopic stroke of the fixed tube.

[0018] In one embodiment, the upper butt joint tube includes a butt joint arc tube portion and an upper butt joint tube portion connected to the butt joint arc tube portion, the end of the butt joint arc tube portion away from the upper butt joint tube portion extends into the fixed tube, the butt joint arc tube portion butts against the upper arc tube portion, and the upper fixing ring is sleeved on the outside of the upper arc tube portion.

[0019] In one embodiment, the fine-tuning joint for the crane pipe also includes a first sealing ring, and the inner walls of the docking positioning ring and the lower fixed ring are both provided with a first sealing groove. The first sealing ring is embedded in the first sealing groove, and the inner wall of the first sealing ring abuts against the outer wall of the fixed arc tube.

[0020] In one embodiment, the fine-tuning joint for the crane pipe also includes a second sealing ring, the inner walls of the fixed ring portion and the upper fixed ring are both provided with a second sealing groove, the second sealing ring is embedded in the second sealing groove, and the inner wall of the second sealing ring abuts against the outer wall of the abutting arc tube portion.

[0021] In one embodiment, the fine-tuning joint for the crane pipe further includes a third sealing ring, the outer wall of the limiting ring portion is provided with a third sealing groove, the third sealing ring is embedded in the third sealing groove, and the outer wall of the third sealing ring abuts against the inner wall of the main pipe portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is an assembly structure diagram of a fine-adjustment joint for a crane pipe in one embodiment of the present utility model;

[0023] Figure 2 For example Figure 1 Cross-sectional view of the fine-adjustment joint for the crane pipe shown.

[0024] The meanings of the numbers in the accompanying drawings are:

[0025] 100- Fine-adjustment joint for crane pipe;

[0026] 10-lower butt joint pipe, 11-lower butt joint pipe portion, 12-butt joint arc pipe portion, 13-butt joint positioning ring portion;

[0027] 20- telescopic tube, 21- fixed arc tube, 22- fixed straight tube, 23- limiting ring;

[0028] 30-lower fixing ring;

[0029] 40-fixed tube, 41-main tube, 42-upper arc tube, 43-fixed ring, 44-convex ring;

[0030] 50-lower telescopic drive;

[0031] 60-upper butt joint pipe, 61-abutting arc tube portion, 62-upper butt joint pipe portion;

[0032] 70-upper fixing ring;

[0033] 80-Upper telescopic drive.

[0034] 90-first sealing ring;

[0035] 110- second sealing ring;

[0036] 120-Third sealing ring. DETAILED DESCRIPTION

[0037] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and 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, and therefore should not be understood as a limitation to the present invention.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0040] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0041] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0042] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0043] See also Figures 1 to 2 , which is a fine-tuning joint 100 for a crane pipe in one embodiment of the present utility model, includes a lower butt joint 10, a telescopic tube 20, a lower fixing ring 30, a fixed tube 40, a lower telescopic driver 50, an upper butt joint 60, an upper fixing ring 70 and an upper telescopic driver 80, wherein the telescopic tube 20 is fixedly connected to the lower butt joint 10, the lower fixing ring 30 is sleeved on the outside of the telescopic tube 20, the lower fixing ring 30 is fixedly connected to the lower butt joint 10, the fixed tube 40 is telescopically connected to the telescopic tube 20, the lower telescopic driver 50 is hinged to the lower fixing ring 30, the telescopic end of the lower telescopic driver 50 is hinged to the fixed tube 40, the upper fixing ring 70 is sleeved on the outside of the upper butt joint 60, the upper fixing ring 70 is fixedly connected to the fixed tube 40, the upper telescopic driver 80 is hinged to the upper fixing ring 70, and the telescopic end of the upper telescopic driver 80 is hinged to the upper butt joint 60.

[0044] See also Figures 1 to 2The lower butt joint tube 10 includes a lower butt joint tube portion 11, a butt joint arc tube portion 12 connected to the lower butt joint tube portion 11, and a butt joint positioning ring portion 13 connected to the butt joint arc tube portion 12. The lower fixed ring 30 is fixedly connected to the butt joint ring portion. The telescopic tube 20 includes a fixed arc tube portion 21, a fixed straight tube portion 22 connected to the fixed arc tube portion 21, and a limiting ring portion 23 connected to the fixed straight tube portion 22. The end of the fixed arc tube portion 21 away from the fixed straight tube portion 22 extends into the lower butt joint tube 10. The fixed arc tube portion 21 abuts against the butt joint arc tube portion 12. The lower fixed ring 30 is looped around the outside of the fixed arc tube portion 21. The fixed straight tube portion 22 extends into the fixed tube 40. The outer wall of the limiting ring portion 23 abuts against the inner wall of the fixed tube 40.

[0045] See also Figures 1 to 2 The fixed tube 40 includes a main tube portion 41, an upper arc tube portion 42 connected to the main tube portion 41, and a fixed ring portion 43 connected to the upper arc tube portion 42. The outer wall of the limiting ring portion 23 abuts against the inner wall of the main tube portion 41. The main tube portion 41 is provided with a convex ring 44 convex inward along its inner wall. The convex ring 44 cooperates with the limiting ring portion 23 to limit the telescopic stroke of the fixed tube 40.

[0046] See also Figures 1 to 2 The upper butt joint tube 60 includes a butt joint arc tube portion 61 and an upper butt joint tube portion 62 connected to the butt joint arc tube portion 61. The end of the butt joint arc tube portion 61 away from the upper butt joint tube portion 62 extends into the fixed tube 40. The butt joint arc tube portion 61 butts against the upper arc tube portion 42, and the upper fixing ring 70 is sleeved on the outside of the upper arc tube portion 42.

[0047] See also Figures 1 to 2 The crane pipe fine-adjustable joint 100 also includes a first sealing ring 90. The inner walls of the docking positioning ring 13 and the lower fixed ring 30 are both provided with first sealing grooves. The first sealing ring 90 is embedded in the first sealing grooves, and the inner wall of the first sealing ring 90 abuts against the outer wall of the fixed arc tube 21. The interference fit between the first sealing ring 90 and the fixed arc tube 21 further secures the connection between the telescopic tube 20 and the lower docking tube 10.

[0048] See also Figures 1 to 2 The crane pipe fine-adjusting joint 100 also includes a second sealing ring 110. The inner walls of the fixed ring portion 43 and the upper fixed ring 70 are both provided with a second sealing groove. The second sealing ring 110 is embedded in the second sealing groove. The inner wall of the second sealing ring 110 abuts the outer wall of the abutting arc tube portion 61. The interference fit between the second sealing ring 110 and the abutting arc tube portion 61 improves the sealing performance between the fixed pipe 40 and the upper butt joint pipe 60.

[0049] See also Figures 1 to 2 The fine-adjustable joint 100 for crane pipes further includes a third sealing ring 120. A third sealing groove is defined on the outer wall of the retaining ring 23. The third sealing ring 120 is embedded in the third sealing groove, with the outer wall of the third sealing ring 120 abutting against the inner wall of the main pipe 41. The third sealing ring 120 effectively prevents gasoline from leaking through the gap between the retaining ring 23 and the main pipe 41, thereby effectively improving the sealing performance of the fine-adjustable joint 100 for crane pipes.

[0050] The working principle of the fine-adjusting joint 100 for the crane pipe in this embodiment is as follows: during operation, the fixed pipe 40 is fixedly connected to the frame for fixing the crane pipe, the upper telescopic drive 80 drives the upper docking pipe 60 to move upward to achieve docking between the upper docking pipe 60 and the large crane pipe, and the lower telescopic drive 50 drives the telescopic pipe 20 and the lower docking pipe 10 to move downward to enable the lower docking pipe 10 to dock with the tanker truck.

[0051] The beneficial effects of the present invention are as follows: the upper telescopic driver 80 drives the upper docking tube 60 to move upward to achieve docking of the upper docking tube 60 with the large crane tube, and the lower telescopic driver 50 drives the telescopic tube 20 and the lower docking tube 10 to move downward to enable the lower docking tube 10 to dock with the tank truck, effectively improving the docking accuracy between the large crane tube and the tank truck, saving time and effort, and improving the docking efficiency between the large crane tube and the tank truck.

[0052] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A fine-adjustment joint for a crane pipe, characterized in that: include: Lower butt joint; a telescopic tube, the telescopic tube being fixedly connected to the lower butt joint tube; A lower fixing ring, the lower fixing ring being sleeved on the outside of the telescopic tube and fixedly connected to the lower butt-jointing tube; a fixed tube, the fixed tube being telescopically connected to the telescopic tube; a lower telescopic actuator, wherein the lower telescopic actuator is hinged to the lower fixing ring, and a telescopic end of the lower telescopic actuator is hinged to the fixing tube; an upper butt joint pipe, the upper butt joint pipe being telescopically connected to the fixed pipe; an upper fixing ring, the upper fixing ring being sleeved on the outer side of the upper butt joint tube and fixedly connected to the fixing tube; and An upper telescopic driver is hinged to the upper fixing ring, and a telescopic end of the upper telescopic driver is hinged to the upper butt joint tube.

2. The fine-tuning joint for crane pipe according to claim 1, characterized in that: The lower butt joint tube includes a lower butt joint tube portion, a butt joint arc tube portion connected to the lower butt joint tube portion, and a butt joint positioning ring portion connected to the butt joint arc tube portion, and the lower fixing ring is fixedly connected to the butt joint ring portion.

3. The fine-tuning joint for crane pipe according to claim 2, characterized in that: The telescopic tube includes a fixed arc tube portion, a fixed straight tube portion connected to the fixed arc tube portion, and a limiting ring portion connected to the fixed straight tube portion. The end of the fixed arc tube portion away from the fixed straight tube portion extends into the lower butting tube portion, the fixed arc tube portion abuts against the butting arc tube portion, the lower fixed ring is sleeved on the outside of the fixed arc tube portion, the fixed straight tube portion extends into the fixed tube, and the outer wall of the limiting ring portion abuts against the inner wall of the fixed tube.

4. The fine-tuning joint for crane pipe according to claim 3, characterized in that: The fixed tube includes a main tube portion, an upper arc tube portion connected to the main tube portion, and a fixed ring portion connected to the upper arc tube portion. The outer wall of the limiting ring portion abuts against the inner wall of the main tube portion. The main tube portion is provided with a convex ring convex inward along its inner wall. The convex ring cooperates with the limiting ring portion to limit the telescopic stroke of the fixed tube.

5. The fine-adjusting joint for crane pipe according to claim 4, characterized in that: The upper butt joint tube includes a butt joint arc tube portion and an upper butt joint tube portion connected to the butt joint arc tube portion. The end of the butt joint arc tube portion away from the upper butt joint tube portion extends into the fixed tube. The butt joint arc tube portion butts against the upper arc tube portion. The upper fixing ring is sleeved on the outside of the upper arc tube portion.

6. The fine-adjusting joint for crane pipe according to claim 5, characterized in that: It also includes a first sealing ring. The inner walls of the docking positioning ring and the lower fixed ring are both provided with a first sealing groove. The first sealing ring is embedded in the first sealing groove. The inner wall of the first sealing ring abuts against the outer wall of the fixed arc tube.

7. The fine-adjustable joint for crane pipe according to claim 6, characterized in that: It also includes a second sealing ring. The inner walls of the fixing ring part and the upper fixing ring are both provided with a second sealing groove. The second sealing ring is embedded in the second sealing groove. The inner wall of the second sealing ring abuts against the outer wall of the abutting arc tube part.

8. The fine-adjusting joint for crane pipe according to claim 7, characterized in that: It also includes a third sealing ring. The outer wall of the limiting ring portion is provided with a third sealing groove. The third sealing ring is embedded in the third sealing groove. The outer wall of the third sealing ring abuts against the inner wall of the main pipe portion.

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