Hydraulic oil pipe with leakage-proof effect

Abstract

The utility model provides a hydraulic oil pipe with a leakproof effect, which relates to the technical field of hydraulic oil pipes and comprises a hydraulic oil pipe main body, oil pipe end metal end sockets are arranged at two ends of the hydraulic oil pipe main body, and rotary connecting nuts are connected to one ends, far away from the hydraulic oil pipe main body, of the two oil pipe end metal end sockets. Threaded connection end pipes are arranged at the ends, away from the oil pipe end metal end socket, of the two rotary connection nuts correspondingly, and anti-leakage sealing structures are arranged in the two threaded connection end pipes correspondingly. The mounting structure is used for quickly disassembling and assembling the leakage-proof sealing structure and the threaded connection end pipe; through the arrangement of the mounting structure, the leakage-proof sealing structure can be quickly disassembled and assembled, so that the leakage-proof sealing structure can be conveniently maintained, cleaned or replaced, the normal use of the leakage-proof sealing structure is ensured, the sealing effect of the leakage-proof sealing structure can be greatly improved, a hydraulic oil pipe is prevented from leaking, and efficient conveying of hydraulic oil is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic oil pipe technology, and in particular to hydraulic oil pipes with leak-proof effect. Background Technology

[0002] Hydraulic hoses are an important component of hydraulic circuits, primarily used for the transportation and supply of hydraulic oil. During use, hydraulic hoses often need to withstand certain oil pressures and possess a certain fatigue strength to ensure the sealing requirements of the pipeline. Therefore, existing hydraulic hoses typically employ leak-proof features. For example, Chinese patent CN116398712 B discloses a leak-proof and explosion-proof high-pressure hose. This hydraulic hose utilizes the pressure of the medium flowing through it to push a central circular plate. This circular plate, via a pressure connecting rod, pushes a compression arc block to slide on the surface of a limiting ring. The compression arc block then presses the positioning end tube against the inner wall of the threaded connection end tube, ensuring the sealing ring completely fills the gap between the threaded connection end tube and the compression arc block, effectively guaranteeing the sealing strength of the high-pressure hose during use. However, in actual use, the internal sealing mechanism of the aforementioned hydraulic oil pipe is located inside the rotary connecting nut. However, the internal sealing mechanism is difficult to disassemble and install. If it is damaged or requires maintenance, it is not convenient to disassemble it from inside the rotary connecting nut for maintenance or replacement. This results in a weakening of the sealing effect of the internal sealing mechanism, causing a deterioration in the sealing effect between the threaded connection end pipe and the rotary connecting nut. This makes it easy for hydraulic oil to leak between the threaded connection end pipe and the rotary connecting nut, which is detrimental to the efficient delivery of hydraulic oil. Utility Model Content

[0003] To address the shortcomings of the existing technology, this utility model proposes a hydraulic oil pipe with leak-proof effect.

[0004] The technical solution of this utility model is implemented as follows:

[0005] A leak-proof hydraulic hose includes a hydraulic hose body, both ends of which are provided with hose end metal caps, and the ends of the two hose end metal caps away from the hydraulic hose body are connected to a swivel connecting nut. The ends of the two swivel connecting nuts away from the hose end metal caps are provided with threaded connecting end tubes, and the interior of the two threaded connecting end tubes is provided with a leak-proof sealing structure.

[0006] It also includes an installation structure for quick assembly and disassembly of the leak-proof sealing structure and the threaded connection end tube. The installation structure includes a plug block set on the leak-proof sealing structure and a plug hole opened at one end of the threaded connection end tube. The outer circumference of one end of the threaded connection end tube is also provided with countersunk holes and screw holes that communicate with each other, and the screw holes are perpendicular to the plug hole. A countersunk bolt that passes through the plug block is screwed into the screw hole.

[0007] Preferably, limit strips are installed on both sides of the inner wall of the insertion hole, and limit slots that cooperate with the limit strips are opened on both sides of the insertion block.

[0008] Preferably, each of the leak-proof sealing structures includes an end ring and a sealing sleeve installed on one side of the end ring. The sealing sleeve can be inserted into the interior of the threaded connection end tube, and a sealing ring is provided on the outer circumference of the sealing sleeve to seal between it and the threaded connection end tube. A pressure-pressurizing component is also provided inside the sealing sleeve to press against the threaded connection end tube.

[0009] Preferably, the pressurizing assembly includes multiple pressure rods hinged around the inner wall of the sealing sleeve. All of the multiple pressure rods are telescopic, and one end of each pressure rod is hinged to a pressurizing bucket. The sealing sleeve also has a reset member that elastically supports the pressurizing bucket.

[0010] More preferably, the reset component includes a support frame fixed inside the sealing sleeve, and a reset spring is connected between the support frame and the pressure hopper.

[0011] More preferably, the support frame consists of a central disc and a plurality of support rods, and the plurality of support rods are connected in a ring array between the central disc and the sealing sleeve.

[0012] Most preferably, the diameter of the intermediate disc is smaller than the diameter of the end of the pressure bucket adjacent to the return spring.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] When in use, this utility model, through the setting of the installation structure, can realize the quick disassembly and assembly of the leak-proof sealing structure, so as to facilitate the maintenance, cleaning or replacement of the leak-proof sealing structure, ensure the normal use of the leak-proof sealing structure, and thus greatly improve the sealing effect of the leak-proof sealing structure, prevent hydraulic oil pipe leakage, and facilitate the efficient transportation of hydraulic oil.

[0015] Furthermore, by setting limit strips and limit slots, the insertion block and insertion hole can be limited, thereby achieving stable insertion between the insertion block and insertion hole. This further facilitates the rapid positioning between the leak-proof sealing structure and the threaded connection end pipe, and is beneficial for the rapid disassembly and assembly of the leak-proof sealing structure. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 for Figure 1 A partial sectional view;

[0019] Figure 3 for Figure 2 A structural diagram from another angle;

[0020] Figure 4 A cross-sectional view of the leak-proof sealing structure and the threaded connection end pipe when disassembled;

[0021] Figure 5 for Figure 2 Side view;

[0022] Figure 6 for Figure 3 Side view;

[0023] Figure 7 for Figure 4 Side view;

[0024] Figure 8 for Figure 4 Enlarged view of point A in the image;

[0025] Figure 9 for Figure 5 Enlarged view of point B in the image.

[0026] In the diagram: 1. Hydraulic pipe body; 2. Metal end cap of the pipe end; 3. Rotary connecting nut; 4. Threaded connecting end pipe; 5. Leak-proof sealing structure; 51. End ring; 52. Sealing sleeve; 53. Sealing ring; 54. Pressure bucket; 55. Support frame; 56. Return spring; 57. Pressure bar; 6. Countersunk bolt; 7. Insertion hole; 8. Insertion block; 9. Countersunk hole; 10. Threaded hole; 11. Limiting strip. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] This utility model provides, for example Figures 1-9 The hydraulic oil pipe shown has a leak-proof effect, including a hydraulic oil pipe body 1. Both ends of the hydraulic oil pipe body 1 are provided with oil pipe end metal end caps 2, and the ends of the two oil pipe end metal end caps 2 away from the hydraulic oil pipe body 1 are connected to a rotary connecting nut 3. The ends of the two rotary connecting nuts 3 away from the oil pipe end metal end caps 2 are provided with threaded connecting end pipes 4, and the interior of the two threaded connecting end pipes 4 is provided with a leak-proof sealing structure 5.

[0029] It also includes an installation structure for quick assembly and disassembly of the leak-proof sealing structure 5 and the threaded connection end tube 4. The installation structure includes a plug block 8 set on the leak-proof sealing structure 5 and a plug hole 7 opened at one end of the threaded connection end tube 4. A countersunk hole 9 and a screw hole 10 that are interconnected are also opened on the outer circumference of one end of the threaded connection end tube 4. The screw hole 10 is perpendicular to the plug hole 7. A countersunk bolt 6 that passes through the plug block 8 is screwed into the screw hole 10.

[0030] Specifically, regarding the two leak-proof sealing structures 5 mentioned above, such as... Figures 1-4 as well as Figure 6 , Figure 7 and Figure 9 As shown, each leak-proof sealing structure 5 includes an end ring 51 and a sealing sleeve 52 installed on one side of the end ring 51. The sealing sleeve 52 can be inserted into the inside of the threaded connection end tube 4, and a sealing ring 53 is provided on the outer circumference of the sealing sleeve 52 to seal between it and the threaded connection end tube 4. A pressure-pressurizing component is also provided inside the sealing sleeve 52 to press against the threaded connection end tube 4.

[0031] Furthermore, the pressurizing assembly includes multiple pressure rods 57 hinged around the inner wall of the sealing sleeve 52. All pressure rods 57 are telescopic, and one end of each pressure rod 57 is hinged to a pressurizing bucket 54. The interior of the sealing sleeve 52 is also provided with a reset member that elastically supports the pressurizing bucket 54.

[0032] Furthermore, the reset component includes a support frame 55 fixed inside the sealing sleeve 52. A reset spring 56 is connected between the support frame 55 and the pressure hopper 54. The support frame 55 consists of a central disc and multiple support rods, and the multiple support rods are connected in a ring array between the central disc and the sealing sleeve 52.

[0033] As described above, when using the hydraulic hose, the threaded connection end 4 is first screwed and fixed to the hydraulic connection pipe end of the external equipment by the rotating connecting nuts 3 at both ends of the hydraulic hose body 1. This connects the hydraulic hose body 1 to the external equipment. When the hydraulic oil flows, it first flows in from one end of the hydraulic hose body 1 and flows out from the other end (e.g., ...). Figures 1-3 (As shown by the arrow in the image), this is used to achieve the flow and delivery of hydraulic oil;

[0034] Furthermore, when hydraulic oil flows into or out of the hydraulic oil pipe body 1, the hydraulic oil will exert a thrust on the pressure bucket 54, causing the pressure bucket 54 to move into the sealing sleeve 52. Under the action of the return spring 56 and the pressure rod 57, the sealing sleeve 52 and the threaded connection end pipe 4 are pressed together, so that the sealing ring 53 tightly fits the sealing sleeve 52 and the threaded connection end pipe 4, thereby achieving a tight connection of the hydraulic oil pipe body 1, which can achieve the effect of sealing and preventing leakage, avoiding leakage when the two ends of the hydraulic oil pipe body 1 are connected, and thus facilitating the stable delivery of hydraulic oil.

[0035] Meanwhile, when the leak-proof sealing structure 5 requires maintenance, the countersunk bolt 6 can be unscrewed from the countersunk hole 9, and then the end ring 51 can be pulled to remove the sealing sleeve 52 from the threaded connection end tube 4. At this time, the insertion block 8 is removed from the insertion hole 7. Subsequently, the leak-proof sealing structure 5 can be maintained, cleaned, or replaced. After maintenance, cleaning, or replacement, the sealing sleeve 52 can be inserted into the threaded connection end tube 4 through the end ring 51 until the end ring 51 is in contact with one end of the threaded connection end tube 4. At this time, the insertion block 8 is inserted into the insertion hole 7. Position the end ring 51 and the threaded connection end tube 4, and then screw the countersunk bolt 6 into the threaded hole 10 through the countersunk hole 9 to fix the end ring 51 and the threaded connection end tube 4 together, thus completing the installation of the leak-proof sealing structure 5. This allows for quick disassembly and assembly of the leak-proof sealing structure 5, facilitating maintenance, cleaning, or replacement of the leak-proof sealing structure 5, ensuring its normal use, and greatly improving the sealing effect of the leak-proof sealing structure 5, preventing leakage of hydraulic oil pipes, and facilitating the efficient transportation of hydraulic oil.

[0036] Additionally, it should be noted that in this embodiment, the orientation of the opening sides of the two pressure hoppers 54 is opposite to the flow direction of the hydraulic oil, so as to ensure that the hydraulic oil applies thrust to the pressure hoppers 54 and ensures the sealing effect.

[0037] Furthermore, such as Figure 4 , Figure 7 and Figure 9 As shown, the diameter of the central disc is smaller than the diameter of the end of the pressure hopper 54 adjacent to the return spring 56. Based on this, the flow resistance of the hydraulic oil can be reduced during the hydraulic oil flow process, thus ensuring efficient hydraulic oil flow.

[0038] Additionally, in this embodiment, as Figure 4 as well as Figures 7-9 As shown, limit strips 11 are installed on both sides of the inner wall of the insertion hole 7, and limit slots that cooperate with the limit strips 11 are opened on both sides of the insertion block 8.

[0039] During the disassembly and assembly of the leak-proof sealing structure 5, when the plug block 8 is inserted into the plug hole 7, the limiting strip 11 can be inserted into the limiting slot. When the plug block 8 is removed from the plug hole 7, the limiting strip 11 is removed from the limiting slot. This achieves the limitation between the plug block 8 and the plug hole 7, thereby achieving a stable connection between the plug block 8 and the plug hole 7. This further facilitates the rapid positioning between the leak-proof sealing structure 5 and the threaded connection end pipe 4, which is beneficial for the rapid disassembly and assembly of the leak-proof sealing structure 5.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hydraulic hose with leak-proof properties, characterized in that: The hydraulic oil pipe body (1) is provided with oil pipe end metal end caps (2) at both ends of the hydraulic oil pipe body (1), and the ends of the two oil pipe end metal end caps (2) away from the hydraulic oil pipe body (1) are connected to a rotary connecting nut (3). The ends of the two rotary connecting nuts (3) away from the oil pipe end metal end caps (2) are provided with threaded connecting end tubes (4), and the interiors of the two threaded connecting end tubes (4) are provided with a leak-proof sealing structure (5). It also includes an installation structure for quick assembly and disassembly of the leak-proof sealing structure (5) and the threaded connection end tube (4). The installation structure includes a plug block (8) set on the leak-proof sealing structure (5) and a plug hole (7) opened at one end of the threaded connection end tube (4). A countersunk hole (9) and a screw hole (10) that communicate with each other are also opened on the outer circumference of one end of the threaded connection end tube (4). The screw hole (10) is perpendicular to the plug hole (7). A countersunk bolt (6) that passes through the plug block (8) is screwed into the screw hole (10).

2. The hydraulic hose with leak-proof effect according to claim 1, characterized in that: Limiting strips (11) are installed on both sides of the inner wall of the insertion hole (7), and limiting slots that cooperate with the limiting strips (11) are opened on both sides of the insertion block (8).

3. The hydraulic hose with leak-proof effect according to claim 1, characterized in that: Each of the aforementioned leak-proof sealing structures (5) includes an end ring (51) and a sealing sleeve (52) installed on one side of the end ring (51). The sealing sleeve (52) can be inserted into the interior of the threaded connection end tube (4), and a sealing ring (53) is provided on the outer circumference of the sealing sleeve (52) to seal between it and the threaded connection end tube (4). A pressure-pressurizing component is also provided inside the sealing sleeve (52) to press against the threaded connection end tube (4).

4. The hydraulic hose with leak-proof effect according to claim 3, characterized in that: The pressurizing assembly includes multiple pressure rods (57) hinged around the inner wall of the sealing sleeve (52). The multiple pressure rods (57) are retractable, and one end of the multiple pressure rods (57) is hinged to a pressurizing bucket (54). The interior of the sealing sleeve (52) is also provided with a reset member that elastically supports the pressurizing bucket (54).

5. The hydraulic hose with leak-proof effect according to claim 4, characterized in that: The reset component includes a support frame (55) fixed inside the sealing sleeve (52), and a reset spring (56) is connected between the support frame (55) and the pressure bucket (54).

6. The hydraulic hose with leak-proof effect according to claim 5, characterized in that: The support frame (55) consists of a central disc and multiple support rods, and the multiple support rods are connected in a ring array between the central disc and the sealing sleeve (52).

7. The hydraulic hose with leak-proof effect according to claim 6, characterized in that: The diameter of the intermediate disc is smaller than the diameter of the end of the pressure bucket (54) adjacent to the return spring (56).

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