Anti-falling safety type oil pipe joint

Abstract

The invention discloses an anti-falling safety type oil pipe connector, and relates to the field of oil pipe connectors, the anti-falling safety type oil pipe connector comprises an oil pipe body, the outer end of the oil pipe body is provided with a reserved butt joint end in a nested mode, and the reserved butt joint end is connected with an external pipeline to form an oil supply step; the outer side of the reserved butt joint end is in butt joint with an external abutting piece in a nested mode, the outer side of the external abutting piece is in butt joint with a reserved traction assembly, and the reserved traction assembly penetrates along the inner side of the reserved butt joint end. According to the anti-falling safety type oil pipe connector, the expanded external reserved liquid bag pushes the locking transverse part on the outer side to transversely move and penetrate through a reserved through hole in the end side of the oil pipe body, meanwhile, the locking transverse part conducts self-positioning locking work along a reserved limiting groove in the inner side of the auxiliary positioning part, and in the working process of equipment, the locking transverse part is not prone to falling off in the working process of the equipment; and the foundation positioning state of the reserved butt joint end between the oil pipe bodies is locked in a self-adaptive mode, the phenomena such as looseness in the oil liquid transmission process are avoided, and the butt joint safety of the oil pipe bodies is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of oil pipe joints, in particular to an anti-drop safety oil pipe joint. Background Art

[0002] The fuel pipe joint of the car is the key part connecting the fuel pipe and other parts. The fuel inlet pipe transports the fuel in the fuel tank to the fuel injector, and the fuel return pipe sends the excess fuel back to the fuel tank, which can reduce the fuel pressure and reduce fuel consumption. Therefore, the quality of the fuel pipe joint determines the overall fuel supply quality. For example, the patented oil pipe joint with publication number CN212804661U includes a first oil pipe joint, a fixed sleeve, a rubber gasket and a second oil pipe joint; the setting of the fixed sleeve, the fixed sleeve is connected with the external thread set in the second oil pipe joint through the internal thread, the sub-end pipe is tightly locked into the mother pipe, and the rubber gasket is used to prevent oil leakage. When the oil pipes at both ends need to be disconnected for maintenance, it is only necessary to adjust the fixed sleeve to make the fixed sleeve detach from the second oil pipe joint to complete the disconnection of the first pipe head and the second pipe head, and the disassembly is very convenient; the setting of the mother pipe and the sub-end pipe, the inner edge of the mother pipe is chamfered, and the outer edge of the sub-end pipe is chamfered, the chamfer setting is convenient for the sub-end pipe to be clamped into the mother pipe, and the installation is convenient and labor-saving; Another example is a leak-proof oil pipe joint disclosed in the patent with publication number CN103016864B, the oil pipe joint comprises two connecting ends and a middle transition end, a wedge block embedded in the pipe wall is respectively provided at the two connecting ends of the oil pipe joint, a sealing gasket is provided on the upper surface of the wedge block, and the upper surface of the wedge block and the surface of the pipe wall of the connecting end of the oil pipe joint are on the same arc surface; a connecting rod is fixed at the lower end of the wedge block, and the other end of the connecting rod is fixed to a screw provided at the middle transition end of the oil pipe joint and passing through the middle transition end of the oil pipe joint; For example, a patent with publication number CN203322569U discloses a tubing joint, which includes a tubing joint body, the inner wall of which is provided with threads, and mounting heads are respectively provided at both ends of the tubing joint body, and a plurality of arc-shaped racks are evenly provided on the mounting heads, and the arc-shaped racks are arranged obliquely with the mounting heads. Since the tubing joint has arc-shaped racks on the mounting heads at both ends of the tubing joint body, the arc-shaped racks can be well matched with the tooth grooves on the mounting tools such as wire cutters during assembly, so as to prevent slipping during the pulling process, facilitate disassembly and assembly, save time and effort, and greatly reduce the labor of operators; Most of the above-mentioned prior arts have improved their overall structure, and the existing oil pipe joints are mostly connected by bolts or threaded connections during operation, and require sealed auxiliary installation through operating equipment such as wrenches, resulting in the need to use external force equipment for locking when it is necessary to ensure that it is anti-slip, and as the equipment is driven, long-term vibration will cause the sealing type of the threaded connection to loosen, requiring regular maintenance for a long time, and there are certain limitations in use. Summary of the invention

[0003] The object of the present invention is to provide a safety type oil pipe joint that prevents falling off, so as to solve the problem proposed in the above-mentioned background technology that most of them are connected by bolts or by threaded connection, and they need to be sealed and assisted by operating equipment such as wrenches, resulting in the need to use external force equipment for locking when it is necessary to ensure that it prevents falling off, and with the driving of the equipment, the long-term vibration will cause the sealing type of the threaded connection to loosen, and regular maintenance is required for a long time.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an anti-drop safety oil pipe joint, comprising an oil pipe body, a reserved butt end is nested and installed at the outer end of the oil pipe body, and the reserved butt end is connected to an external pipeline to form an oil supply step; the outer side of the reserved butt end is nested and docked with an external resistance piece, and the outer side of the external resistance piece is docked with a reserved traction assembly, and the reserved traction assembly passes through the inner side of the reserved butt end, an auxiliary positioning piece is nested and installed at the inner side of the end of the reserved butt end, and a quick-release positioning structure is provided on the inner side of the reserved butt end, and the oil pipe body and the reserved butt end are locked by the quick-release positioning structure.

[0005] Furthermore, the locking docking structure is provided with a reserved limit groove, and the reserved limit groove is opened on the inner side of the auxiliary positioning piece, the lower end of the auxiliary positioning piece is fixedly connected with a reset support spring, and the reset support spring and the lower end of the reserved docking end are docked with each other, and a reserved positioning groove is opened on the inner side of the outer end of the oil pipe body, and the position of the reserved positioning groove and the auxiliary positioning piece corresponds to each other.

[0006] Furthermore, a reserved docking piece is nested and installed inside the lower end of the reserved docking end, and a built-in reserved liquid capsule is bonded and connected to the outer side of the reserved docking piece, and the built-in reserved liquid capsule and the inner side of the lower end of the reserved docking end are docked with each other.

[0007] Furthermore, the external resistance member forms a nested structure along the inner side of the outer side of the reserved docking end, and the external resistance member forms a traction structure with the auxiliary positioning member through the reserved traction assembly, and the auxiliary positioning member forms an elastic support structure along the outer end of the reserved docking end through the reset support spring.

[0008] Furthermore, the auxiliary positioning piece forms a snap-fit ​​structure with the inner side of the outer side of the oil pipe body through the reserved positioning groove, and when the reserved docking piece contacts the liquid injection transmission force, a sliding structure is formed along the lower end of the reserved docking end, and the inner end of the reserved docking piece exerts pressure on the contacting built-in reserved liquid bag.

[0009] Furthermore, a locking docking structure is provided between the oil pipe body and the reserved docking end, and the reserved docking end is anti-detachment and positioned by the locking docking structure; the locking docking structure is provided with a first supply tube, and the first supply tube is connected to the built-in reserved liquid bag, and the first supply tube passes through the interior of the reserved docking end, and the inner side of the end of the reserved docking end is bonded with an external reserved liquid bag, and the external reserved liquid bag is connected to the first supply tube.

[0010] Furthermore, the outer side of the external reserved liquid capsule is docked with a locking transverse piece, and the locking transverse piece passes through the inner side of the end of the reserved docking end, the outer side of the first supply tube is connected to the second supply tube, and the second supply tube passes through the end of the reserved docking end; the inner wall of the end of the reserved docking end is bonded and connected with a sealing docking liquid capsule, and the sealing docking liquid capsule and the second supply tube are connected to each other.

[0011] Furthermore, the built-in reserved liquid bag forms a supply operation with the interior of the external reserved liquid bag through the first supply tube, and during the expansion of the external reserved liquid bag, the contacted locking cross member is pushed outward by force, and the locking cross member passes through the reserved through hole on the end side of the oil pipe body, and the locking cross member is positioned and locked along the reserved limit groove on the inner side of the auxiliary positioning member.

[0012] Furthermore, during the process of the reserved docking piece moving inward to apply pressure to the built-in reserved liquid bag, the built-in reserved liquid bag supplies the sealed docking liquid bag at the end through the second supply pipe, and the sealed docking liquid bag expands and fills along the docking portion between the reserved docking end and the oil pipe body.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The anti-dropping safety oil pipe joint is provided with a quick-release positioning structure, through which the oil pipe body and the reserved butt end are locked. When the reserved butt end needs to be disassembled and assembled, it is only necessary to hold the external resistance piece and apply pressure inward along the inner end of the reserved butt end, so that the auxiliary positioning piece at the end can be driven to move along the end of the reserved butt end by the reserved traction component docked with it, so that the positioning state between it and the oil pipe body can be quickly controlled, and the locking state between the oil pipe body and the reserved butt end can be adaptively guaranteed by the subsequent locking butt structure, without the need for sealing auxiliary installation by operating equipment such as a wrench, and when the anti-dropping is guaranteed, there is no need to use external force equipment for locking processing, and the sealing type of the threaded connection will not be loosened due to the influence of the driving vibration of the equipment, thereby improving the installation stability of the device; Furthermore, a locking docking structure is provided, through which the reserved docking end is anti-detached and positioned, and as the oil pipe body is supplied with oil, the reserved docking piece at the bottom of the reserved docking end docked therewith will slide along the lower end of the reserved docking end when it contacts the liquid injection transmission force, and then the reserved docking piece will exert pressure on the built-in reserved liquid bag contacted by its inner end, so that the built-in reserved liquid bag is transversely deformed to supply the oil through the first supply pipe to the external reserved liquid bag at the end, and the expanded external reserved liquid bag pushes the outer locking transverse member to move transversely and penetrates along the reserved through hole on the end side of the oil pipe body, and at the same time, the locking transverse member is self-positioned and locked along the reserved limit groove on the inner side of the auxiliary positioning member, that is, during the operation of the equipment, the basic positioning state of the reserved docking end between the oil pipe bodies is adaptively locked to avoid loosening during oil transmission, thereby improving the practicability of the device; Furthermore, in the process that the reserved docking piece contacts the injected oil and moves inward to apply pressure to the built-in reserved liquid bag, the built-in reserved liquid bag that is synchronously pressurized laterally will be supplied to the interior of the sealing docking liquid bag at the end through the second supply pipe, allowing the ring-shaped sealing docking liquid bag to expand and fill along the docking part between the reserved docking end and the oil pipe body, thereby effectively performing secondary sealing guarantee treatment during the working process, improving its transmission stability while performing sealing operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the oil pipe body of the present invention; Figure 3 A schematic diagram of a half-cut three-dimensional structure of a butt-joint end reserved for the present invention; Figure 4 For the present invention Figure 3 A schematic diagram of the partially enlarged structure; Figure 5 This is a schematic diagram of a half-cut three-dimensional structure of an auxiliary positioning member of the present invention; Figure 6 A schematic diagram of a half-cut three-dimensional structure of a reserved butt joint piece of the present invention; Figure 7 It is a schematic diagram of a half-cut three-dimensional structure of an external abutment member of the present invention; Figure 8 This is a schematic diagram of the three-dimensional structure of the reserved limiting groove of the present invention; Fig. 9 This is a schematic diagram of the three-dimensional structure of the reserved positioning groove of the present invention.

[0015] In the figure: 1. Oil pipe body; 2. Reserved docking end; 3. External resistance member; 4. Reserved traction assembly; 5. Auxiliary positioning member; 6. Reserved limit groove; 7. Reset support spring; 8. Reserved positioning groove; 9. Reserved docking piece; 10. Built-in reserved liquid capsule; 11. First supply pipe; 12. External reserved liquid capsule; 13. Locking transverse member; 14. Second supply pipe; 15. Sealed docking liquid capsule. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] Example 1: Please refer to Figure 1-Figure 9 The present invention provides the following technical solutions: an anti-drop safety oil pipe joint, comprising an oil pipe body 1, a reserved butt end 2, an external abutment 3, a reserved traction assembly 4, an auxiliary positioning member 5, a reserved limit groove 6, a reset support spring 7, a reserved positioning groove 8, a reserved butt piece 9, a built-in reserved liquid capsule 10, a first supply pipe 11, an external reserved liquid capsule 12, a locking transverse member 13, a second supply pipe 14, and a sealed butt liquid capsule 15; the outer end of the oil pipe body 1 is nested with the reserved butt end 2 , and the reserved docking end 2 is connected to the external pipeline to form an oil supply step; the outer side of the reserved docking end 2 is nested and docked with an external resistance member 3, and the outer side of the external resistance member 3 is docked with a reserved traction component 4, and the reserved traction component 4 passes through the inner side of the reserved docking end 2, and an auxiliary positioning member 5 is nested and installed on the inner side of the end of the reserved docking end 2, and a quick-release positioning structure is provided on the inner side of the reserved docking end 2, and the oil pipe body 1 and the reserved docking end 2 are locked by the quick-release positioning structure.

[0018] The locking docking structure is provided with a reserved limiting groove 6, and the reserved limiting groove 6 is opened on the inner side of the auxiliary positioning member 5, the lower end of the auxiliary positioning member 5 is fixedly connected with a reset support spring 7, and the reset support spring 7 is docked with the lower end of the reserved docking end 2, and the inner side of the outer end of the oil pipe body 1 is provided with a reserved positioning groove 8, and the positions of the reserved positioning groove 8 and the auxiliary positioning member 5 correspond to each other. A reserved docking piece 9 is nested and installed inside the lower end of the reserved docking end 2, and a built-in reserved liquid capsule 10 is bonded and connected to the outer side of the reserved docking piece 9, and the built-in reserved liquid capsule 10 is docked with the inner side of the lower end of the reserved docking end 2. The external resistance member 3 forms a nested structure along the inner side of the outer side of the reserved docking end 2, and the external resistance member 3 forms a traction structure with the auxiliary positioning member 5 through the reserved traction component 4, and the auxiliary positioning member 5 forms an elastic support structure along the outer end of the reserved docking end 2 through the reset support spring 7. The auxiliary positioning member 5 forms a snap-fitting structure with the inner side of the outer side of the oil pipe body 1 through the reserved positioning groove 8. When the reserved docking piece 9 contacts the liquid injection transmission force, a sliding structure is formed along the lower end of the reserved docking end 2, and the inner end of the reserved docking piece 9 exerts pressure on the contacted built-in reserved liquid bag 10. In the process of disassembling and assembling the reserved docking end 2, it is only necessary to hold the external resistance member 3 and apply pressure inward along the inner end of the reserved docking end 2, and the auxiliary positioning member 5 at the end can be driven to move along the end of the reserved docking end 2 through the reserved traction component 4 docked with it, so as to quickly control the positioning state between it and the oil pipe body 1, and the locking state between the oil pipe body 1 and the reserved docking end 2 can be adaptively guaranteed through the subsequent locking docking structure, without the need for sealed auxiliary installation through operating equipment such as a wrench, and without the need for external force equipment for locking treatment while ensuring anti-slippage, and the sealing type of the threaded connection will not be loosened due to the driving vibration of the equipment, thereby improving the installation stability of the device.

[0019] Embodiment 2: Based on Embodiment 1, a locking docking structure is also disclosed, and its specific structure is as follows: A locking docking structure is provided between the oil pipe body 1 and the reserved docking end 2, and the reserved docking end 2 is prevented from falling off and positioned by the locking docking structure; The locking docking structure is provided with a first supply tube 11, and the first supply tube 11 is connected to the internal reserved liquid capsule 10, and the first supply tube 11 passes through the inside of the reserved docking end 2, and the inner side of the end of the reserved docking end 2 is bonded with an external reserved liquid capsule 12, and the external reserved liquid capsule 12 is connected to the first supply tube 11. The outer side of the external reserved liquid capsule 12 is docked with a locking transverse member 13, and the locking transverse member 13 passes through the inner side of the end of the reserved docking end 2, and the outer side of the first supply tube 11 is connected to a second supply tube 14, and the second supply tube 14 passes through the end of the reserved docking end 2; the inner wall of the end of the reserved docking end 2 is bonded with a sealing docking liquid capsule 15, and the sealing docking liquid capsule 15 is connected to the second supply tube 14. The built-in reserved liquid capsule 10 forms a supply operation with the interior of the external reserved liquid capsule 12 through the first supply pipe 11, and during the expansion of the external reserved liquid capsule 12, a force is applied to the contacted locking transverse member 13 to push it outward, and the locking transverse member 13 passes through the reserved through hole on the end side of the oil pipe body 1, and the locking transverse member 13 performs positioning and locking operations along the reserved limiting groove 6 on the inner side of the auxiliary positioning member 5. During the process of the reserved docking piece 9 moving inwards to apply pressure to the built-in reserved liquid capsule 10, the built-in reserved liquid capsule 10 supplies the inside of the sealed docking liquid capsule 15 at the end through the second supply pipe 14, and the sealed docking liquid capsule 15 expands and fills along the docking portion between the reserved docking end 2 and the oil pipe body 1; as the oil pipe body 1 is supplied with oil, the reserved docking piece 9 at the bottom of the reserved docking end 2 docked therewith will slide along the lower end of the reserved docking end 2 when it contacts the liquid injection transmission force, and then the reserved docking piece 9 will apply pressure to the built-in reserved liquid capsule 10 that contacts its inner end, so that the built-in reserved liquid capsule 10 is laterally deformed and supplies the liquid to the external reserved liquid capsule 12 at the end through the first supply pipe 11, and the expanded external reserved liquid capsule 12 pushes the outer locking transverse member 13 to move laterally, along The reserved through hole on the end side of the oil pipe body 1 is penetrated, and at the same time, the locking transverse member 13 is self-positioned and locked along the reserved limit groove 6 on the inner side of the auxiliary positioning member 5, that is, during the operation of the equipment, the basic positioning state of the reserved docking end 2 between the oil pipe bodies 1 is adaptively locked to avoid loosening during oil transmission. In the process that the reserved docking piece 9 contacts the injected oil and moves inward to apply pressure to the built-in reserved liquid capsule 10, the built-in reserved liquid capsule 10 that is synchronously pressurized laterally will be supplied to the inside of the sealing docking liquid capsule 15 at the end through the second supply pipe 14, so that the annular sealing docking liquid capsule 15 can expand and fill along the docking part between the reserved docking end 2 and the oil pipe body 1, thereby effectively performing secondary sealing guarantee processing during the operation, improving its transmission stability while performing sealing operations.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An anti-drop safety oil pipe joint, comprising an oil pipe body (1), wherein a reserved butt end (2) is nested and installed at the outer end of the oil pipe body (1), and the reserved butt end (2) is connected to an external pipeline to form an oil supply step; Features: The outer side of the reserved butt joint end (2) is nested with an external resistance piece (3), and the outer side of the external resistance piece (3) is butt jointed with a reserved traction assembly (4), and the reserved traction assembly (4) penetrates along the inner side of the reserved butt joint end (2), and an auxiliary positioning piece (5) is nested and installed on the inner side of the end of the reserved butt joint end (2), and a quick-release positioning structure is arranged on the inner side of the reserved butt joint end (2), and locking work is performed between the oil pipe body (1) and the reserved butt joint end (2) through the quick-release positioning structure.

2. The anti-drop safety oil pipe joint according to claim 1, characterized in that: The locking docking structure is provided with a reserved limiting groove (6), and the reserved limiting groove (6) is opened on the inner side of the auxiliary positioning piece (5); the lower end of the auxiliary positioning piece (5) is fixedly connected with a return support spring (7), and the return support spring (7) and the lower end of the reserved docking end (2) are docked with each other; the inner side of the outer end of the oil pipe body (1) is provided with a reserved positioning groove (8), and the positions of the reserved positioning groove (8) and the auxiliary positioning piece (5) correspond to each other.

3. The anti-drop safety oil pipe joint according to claim 2, characterized in that: A reserved docking piece (9) is nested and installed inside the lower end of the reserved docking end (2), and a built-in reserved liquid capsule (10) is bonded and connected to the outer side of the reserved docking piece (9), and the built-in reserved liquid capsule (10) and the inner side of the lower end of the reserved docking end (2) are butted against each other.

4. The anti-drop safety oil pipe joint according to claim 3, characterized in that: The external abutment member (3) forms a nested structure along the inner side of the outer side of the reserved butt joint end (2), and the external abutment member (3) forms a traction structure with the auxiliary positioning member (5) through the reserved traction assembly (4), and the auxiliary positioning member (5) forms an elastic support structure along the outer end of the reserved butt joint end (2) through the reset support spring (7).

5. The anti-drop safety oil pipe joint according to claim 4, characterized in that: The auxiliary positioning member (5) forms a snap-fit ​​structure with the inner side of the outer side of the oil pipe body (1) through the reserved positioning groove (8); when the reserved docking piece (9) contacts the liquid injection transmission force, a sliding structure is formed along the lower end of the reserved docking end (2); and the inner end of the reserved docking piece (9) exerts pressure on the contacting built-in reserved liquid bag (10).

6. The anti-drop safety oil pipe joint according to claim 3, characterized in that: A locking docking structure is provided between the oil pipe body (1) and the reserved docking end (2), and the reserved docking end (2) is prevented from falling off and positioned by the locking docking structure; The locking docking structure is provided with a first supply tube (11), and the first supply tube (11) is connected to the internal reserved liquid capsule (10), and the first supply tube (11) passes through the inside of the reserved docking end (2), and the inner side of the end of the reserved docking end (2) is bonded to an external reserved liquid capsule (12), and the external reserved liquid capsule (12) is connected to the first supply tube (11).

7. The anti-drop safety oil pipe joint according to claim 6, characterized in that: The outer side of the external reserved liquid capsule (12) is butt-jointed with a locking transverse member (13), and the locking transverse member (13) penetrates along the inner side of the end of the reserved butt joint end (2); the outer side of the first supply tube (11) is connected with a second supply tube (14), and the second supply tube (14) penetrates along the inner side of the end of the reserved butt joint end (2); A sealing butt joint liquid capsule (15) is bonded and connected to the inner wall of the end of the reserved butt joint end (2), and the sealing butt joint liquid capsule (15) is connected to the second supply pipe (14).

8. The anti-drop safety oil pipe joint according to claim 7, characterized in that: The internal reserved liquid capsule (10) forms a supply operation through the first supply pipe (11) and the internal part of the external reserved liquid capsule (12), and during the expansion process of the external reserved liquid capsule (12), a force is applied to the contacted locking transverse member (13) to push it outward, and the locking transverse member (13) penetrates along the reserved through hole on the end side of the oil pipe body (1), and the locking transverse member (13) performs a positioning and locking operation along the reserved limiting groove (6) on the inner side of the auxiliary positioning member (5).

9. The anti-drop safety oil pipe joint according to claim 8, characterized in that: During the process of the reserved docking piece (9) moving inwards to apply pressure to the built-in reserved liquid capsule (10), the built-in reserved liquid capsule (10) supplies liquid to the interior of the sealing docking liquid capsule (15) at the end through the second supply pipe (14), and the sealing docking liquid capsule (15) expands and fills along the docking portion between the reserved docking end (2) and the oil pipe body (1).

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