Ultrahigh-pressure hose joint assembly

Abstract

The utility model provides an ultrahigh pressure hose connector assembly which comprises a connector assembly and a pipe body, the connector assembly comprises a core shaft, the outer side of the core shaft is sleeved with the pipe body, and the core shaft is communicated with the pipe body; a mounting space where the pipe body is inserted is formed between the connector and the mandrel, the connector is fixedly connected with the outer side of the pipe body located in the mounting space, and at least part of the connector is connected to the mandrel in a sleeving mode; the positioning part is located at the joint of the mandrel and the connector, and the positioning part is used for limiting the relative position between the connector and the mandrel. According to the ultrahigh-pressure hose connector assembly, the technical problem that the ultrahigh-pressure hose connector assembly in the prior art is prone to connector leakage is solved.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic pipeline connector technology, specifically to an ultra-high pressure hose connector assembly. Background Technology

[0002] With the development of equipment technology in mining machinery, petroleum equipment, metallurgical forging, chemical industry, and shipbuilding, ultra-high pressure hoses are increasingly being used to transport fluid media with high pressure and certain temperatures. The maximum pressure resistance can reach 200MPa, and the pressure resistance requirements are even higher under more demanding conditions. When using traditional hose and hose fitting assembly methods in environments with large pressure fluctuations or high-frequency vibrations, the hose fittings may experience thread unraveling, making it difficult to meet the requirements for resisting ultra-high pressure pulsation and ultra-high pressure. The hose fitting and hose connection are prone to failure and leakage, which in turn causes joint leakage. At the same time, after a period of use, while leaks occur, dust from the external environment can also enter the hose, causing hydraulic system failures and further increasing maintenance and repair costs.

[0003] Therefore, existing technologies need further development. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and provide an ultra-high pressure hose connector assembly to solve the technical problem that ultra-high pressure hose connector assemblies are prone to leakage.

[0005] To achieve the above technical objectives, the present invention adopts the following technical solution: It provides an ultra-high pressure hose connector assembly, including a connector assembly and a pipe body. The connector assembly includes: a mandrel, with the pipe body sleeved on the outside of the mandrel, and the mandrel and the pipe body communicating; a connector, with an installation space for inserting the pipe body formed between the connector and the mandrel, the connector being fixedly connected to the outside of the pipe body located within the installation space, and at least a portion of the connector being sleeved on the mandrel; and a positioning component, located at the connection between the mandrel and the connector, the positioning component being used to limit the relative position between the connector and the mandrel.

[0006] Furthermore, a positioning groove is provided on the mandrel, one end of the positioning component abuts against the connector, and the other end of the positioning component abuts against the positioning groove.

[0007] Furthermore, the connector includes a limiting groove corresponding to the positioning groove, the limiting groove abuts against the positioning component, and the limiting groove and the positioning groove together form a moving channel for accommodating the positioning component, and the positioning component and the moving channel are interference-fitted.

[0008] Furthermore, the connector includes: a mounting hole that penetrates the connector and communicates with the moving channel, through which the positioning component enters the moving channel; and a sealing element that is detachably connected to the mounting hole.

[0009] Furthermore, the tube body includes a multi-layered spiral wound material layer and a middle rubber layer covered with the multi-layered spiral wound material layer.

[0010] Furthermore, a first adhesive groove is provided on the side of the connector near the tube body, and at least part of the middle adhesive layer is located in the first adhesive groove.

[0011] Furthermore, the connector assembly includes a first crimping sleeve embedded within a multilayer winding material layer.

[0012] Furthermore, the mandrel and the first clamping sleeve are connected by a snap-fit ​​structure, which includes: a snap-fit ​​groove formed on the mandrel; and a snap-fit ​​block disposed on the first clamping sleeve, the snap-fit ​​block engaging with the snap-fit ​​groove.

[0013] Furthermore, the mandrel includes a plurality of bosses that vary progressively along the axial direction of the mandrel, each boss having at least one layer of winding material distributed thereon, and at least one layer of winding material being fixedly connected to the boss.

[0014] Furthermore, the connector assembly includes a second crimping sleeve, which is sleeved on the outside of the pipe body; the second crimping sleeve is connected to the connector head through a crimping structure, which includes a protrusion and a groove, and the protrusion and groove are respectively disposed on the second crimping sleeve and the connector head.

[0015] Beneficial effects:

[0016] 1. By limiting the relative position between the connector and the mandrel through positioning components, the relative position between the connector and the mandrel remains unchanged. When the operating environment has large pressure fluctuations or high-frequency vibrations, it prevents the connector and the mandrel from moving irregularly under external forces. This setting achieves anti-loosening treatment, preventing relative displacement of the joint from causing thread unthreading, resulting in seal damage or failure, and thus reducing the sealing capacity. This maintains the sealing performance between the joint assembly and the pipe body, ensuring that it can work stably and efficiently in high-pressure and high-frequency vibration environments. It enables the ultra-high pressure hose joint to meet the requirements of resisting ultra-high pressure pulsation and withstanding ultra-high pressure, solving the technical problem of joint leakage that easily occurs in ultra-high pressure hose joint assemblies in related technologies.

[0017] 2. The limiting groove and the positioning groove form a moving channel, which is used to accommodate the positioning component. The positioning component and the moving channel are interference-fitted to prevent the positioning component from moving back and forth in the moving channel, which would cause misalignment between the connector and the mandrel. This achieves circumferential, axial and radial positioning of the connector, further improving the sealing performance of the hose connector.

[0018] 3. By setting the first crimping sleeve, the tube body and the mandrel become one unit, which increases the connection strength between the tube body and the mandrel and prevents the tube body from falling off the connector assembly; by setting the first crimping sleeve at the connection between the tube body and the connector assembly, the structural strength of the tube body can be increased.

[0019] 4. During the assembly of the hose connector, the positioning component is installed in the moving channel between the connector and the hose connector body. This positioning component is located inside the connector assembly, restricting the relative position between the connector and the hose connector body from the inside out. This ensures that the relative position between the connector and the hose connector body remains unchanged. When there are large pressure fluctuations or high-frequency vibrations in the operating environment, it prevents the connector and the hose connector body from moving irregularly under external forces. This avoids relative displacement of the connector, which could lead to thread uncoupling, damage to the seal, or failure. This further solves the technical problem of easy leakage in ultra-high pressure hose connector assemblies in related technologies. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the ultra-high pressure hose connector assembly used in this embodiment of the utility model;

[0021] Figure 2 This is a partial structural schematic diagram of the ultra-high pressure hose connector assembly used in an embodiment of this utility model;

[0022] Figure 3 This is a flowchart of the assembly process used in the embodiments of this utility model.

[0023] The above figures include the following reference numerals:

[0024] 1. Connector assembly; 11. Mandrel; 111. Positioning groove; 112. Snap-fit ​​groove; 113. Boss; 114. Sealing groove; 12. Connector head; 121. Limiting groove; 122. Mounting hole; 123. Sealing component; 124. Abutment part; 125. First glue receiving groove; 126. Glue injection hole; 127. Glue outlet hole; 128. Groove; 13. Positioning component; 14. First crimping sleeve; 141. Second glue receiving groove; 142. Snap-fit ​​block; 15. Second crimping sleeve; 151. Protrusion; 2. Tube body; 21. Winding material layer; 22. Middle glue layer; 3. Sealing ring. Detailed Implementation

[0025] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0026] According to an embodiment of this utility model, an ultra-high pressure hose connector assembly is provided. Please refer to [link / reference]. Figures 1 to 3 The device includes a connector assembly 1 and a tube body 2. The connector assembly 1 includes: a mandrel 11, on the outside of which the tube body 2 is sleeved, and the mandrel 11 and the tube body 2 are in communication; a connector 12, on which an installation space for inserting the tube body 2 is formed between the connector 12 and the mandrel 11, the connector 12 is fixedly connected to the outside of the tube body 2 located in the installation space, and at least a portion of the connector 12 is sleeved on the mandrel 11; and a positioning component 13, located at the connection between the mandrel 11 and the connector 12, the positioning component 13 being used to limit the relative position between the connector 12 and the mandrel 11.

[0027] The positioning component 13 restricts the relative position between the connector 12 and the spindle 11, keeping their relative positions constant. This prevents irregular movement of the connector 12 and spindle 11 under external force when the operating environment experiences significant pressure fluctuations or high-frequency vibrations. This design achieves anti-loosening, preventing relative displacement of the joint from causing thread stripping, which could damage or malfunction the seal and reduce its sealing capacity. This maintains the sealing between the connector assembly 1 and the pipe body 2, ensuring stable and efficient operation under high pressure and high-frequency vibration environments. It also enables the ultra-high pressure hose connector to meet the requirements for resisting ultra-high pressure pulsation and withstanding ultra-high pressure, solving the technical problem of easy leakage in ultra-high pressure hose connector assemblies in related technologies.

[0028] In the ultra-high pressure hose connector assembly of this embodiment, see... Figure 2 The mandrel 11 has a positioning groove 111. One end of the positioning component 13 abuts against the connector 12, and the other end of the positioning component 13 abuts against the positioning groove 111. Specifically, the positioning component 13 abuts against both the positioning groove 111 and the connector 12. By opening the positioning groove 111, the positioning component 13 is embedded in the positioning groove, thereby restricting the axial and radial movement of the connector 12. This ensures that the axes of the mandrel 11 and the connector 12 remain concentric, preventing the connector 12 from moving relative to the mandrel 11 along the axial direction. This achieves axial and radial positioning of the connector 12.

[0029] In the ultra-high pressure hose connector assembly of this embodiment, see... Figure 2 The connector 12 includes a limiting groove 121 corresponding to the positioning groove 111. The limiting groove 121 abuts against the positioning component 13. The limiting groove 121 and the positioning groove 111 together form a moving channel for accommodating the positioning component 13. The positioning component 13 and the moving channel are interference-fitted. Specifically, by providing the limiting groove 121, the contact area between the positioning component 13 and the connector 12 is increased, thereby further restricting the relative position of the connector 12.

[0030] The limiting groove 121 and the positioning groove 111 form a moving channel, which is used to accommodate the positioning component. The positioning component 13 is interference-fitted with the moving channel to prevent the positioning component 13 from moving back and forth in the moving channel, which would cause the connector 12 and the spindle 11 to move out of alignment. This achieves circumferential, axial and radial positioning of the connector 12, and further improves the sealing performance of the hose connector.

[0031] It should be noted that in the prior art, a positioning pin structure is usually used to position the connector 12. The positioning pin fixed on the connector 12 abuts against the spindle 11. However, when this structure is applied to a high-pressure and high-vibration environment, the positioning pin is very prone to loosening and displacement, resulting in a gap between the positioning pin and the connector, which causes the connector 12 to shift relative to the spindle 11. In the ultra-high pressure hose connector assembly of this embodiment, both ends of the positioning component 13 are always in contact with the connector 12 and the spindle 11. The positioning component 13 is always located in the moving channel and cannot be dislodged, which effectively avoids damage to the seal and improves the problem of easy leakage of the connector in the prior art.

[0032] In the ultra-high pressure hose connector assembly of this embodiment, see... Figure 2 The connector 12 includes: a mounting hole 122 extending through the connector 12 and communicating with a moving channel, through which the positioning component 13 enters the moving channel; and a sealing component 123 detachably connected to the mounting hole 122. Specifically, the mounting hole 122 allows the positioning component 13 to enter the moving channel, and the sealing component 123 seals the mounting hole 122 to prevent the positioning component 13 from dislodging from it.

[0033] Specifically, since the positioning component 13 is interference-fitted with the moving channel, when installing the positioning component 13, it is necessary to use external force to knock the positioning component 13 into the moving channel.

[0034] In some embodiments, the positioning component 13 is a positioning ball, and the moving channel is a ballistic path that is annularly distributed on the spindle 11 and the connector 12.

[0035] In some embodiments, the positioning component 13 includes multiple components, all of which are located within the moving channel. The multiple positioning components 13 increase the contact area between the positioning component 13 and the moving channel, further preventing relative displacement between the connector 12 and the spindle 11, and further improving the sealing performance between the connector assembly 1 and the tube body 2.

[0036] It is understandable that because the positioning component 13 is interference-fitted with the moving channel, the positioning component 13 is difficult to move in the moving channel. Therefore, multiple mounting holes 122 are provided on the connector 12 to reduce the moving distance of the positioning component 13 in the moving channel and facilitate the assembly of the positioning component 13.

[0037] It is understood that when the positioning component 13 is a positioning ball, the moving channel may be a circular channel, or it may be a V-shaped channel or a polygonal channel depending on the shape of the positioning component 13.

[0038] In the ultra-high pressure hose connector assembly of this embodiment, see... Figure 2 The sealing member 123 is provided with an abutting portion 124 for abutting against the positioning member 13. Specifically, the abutting portion 124 is a spherical surface that conforms to the shape of the positioning member 13, so as to increase the contact area between the abutting portion 124 and the positioning member 13, thereby limiting the positioning member 13 located at the mounting hole 122 and preventing the positioning member 13 from moving.

[0039] In some embodiments, both the spindle 11 and the connector 12 are made of stainless steel, which not only gives them high mechanical strength and wear resistance, but also good corrosion resistance.

[0040] In some embodiments, the connector is provided with a threaded structure to facilitate the assembly and replacement of the joint. Preferably, the threaded structure of the connector adopts an Agmu trapezoidal thread, which not only has high mechanical strength but also facilitates the assembly and replacement of the joint assembly. Furthermore, the connection method can be designed as a flange or other conical seal connection method according to user needs.

[0041] In the ultra-high pressure hose connector assembly of this embodiment, see... Figure 2 The tube body 2 includes a multi-layer winding material layer 21 and a middle rubber layer 22 covering the multi-layer winding material layer 21.

[0042] In the ultra-high pressure hose connector assembly of this embodiment, see... Figure 2 The connector 12 has a first adhesive groove 125 on the side near the tube body 2, and at least part of the middle adhesive layer 22 is located in the first adhesive groove 125. Specifically, by setting the first adhesive groove 125 to accommodate part of the middle adhesive layer, the adhesive gripping force of the middle adhesive layer is increased, thereby increasing the connection strength between the connector 12 and the tube body 2.

[0043] Specifically, the tube body 2 also includes an inner adhesive layer and an outer adhesive layer disposed on both the inner and outer sides of the middle adhesive layer 22.

[0044] Specifically, the first adhesive groove 125 is an annular recess formed on the connector 12. The winding intersection line between the connector 12 and the pipe body 2 can increase the sealing performance of the joint. The cross-section of the first adhesive groove 125 includes, but is not limited to, rectangular, trapezoidal, parallelogram, and other shapes.

[0045] In some embodiments, a plurality of first adhesive grooves 125 are distributed along the axial direction of the connector 12 to increase adhesive gripping ability.

[0046] In some embodiments, the winding material layer 21 is a steel wire layer, which has strong strength and flexibility.

[0047] In some embodiments, the steel wire layer in the tube body 2 can be replaced by non-metallic materials such as carbon fiber filaments or ceramic materials. By using non-metallic materials, the requirements for strength and toughness of the tube body 2 can still be met, the weight of the tube body 2 can be reduced, the corrosion resistance and high temperature resistance of the tube body 2 can be improved, and it can not be detected by metal detectors in special application environments, which has special application significance.

[0048] In the ultra-high pressure hose connector assembly of this embodiment, see... Figure 2 The connector assembly 1 includes a first crimping sleeve 14, which is embedded within a multi-layer wound material layer 21. Specifically, by providing the first crimping sleeve 14, which is embedded within the multi-layer wound material layer 21, the structural strength of the pipe body 2 is increased.

[0049] Specifically, a layer of winding material 21 is laid on the side of the first crimping sleeve 14 away from the mandrel 11, and a plurality of second adhesive grooves 141 are opened on the side of the first crimping sleeve 14 close to the mandrel 11. There is at least one layer of steel wire ring and at least part of the middle adhesive layer 22 between the first crimping sleeve 14 and the mandrel 11. The first crimping sleeve 14 is embedded into the tube body 2 between the formation of the middle adhesive layer 22, so that the connection between the first crimping sleeve 14 and the tube body 2 is stable and the first crimping sleeve 14 is prevented from loosening and falling off.

[0050] In the ultra-high pressure hose connector assembly of this embodiment, see... Figure 2The mandrel 11 and the first crimping sleeve 14 are connected by a snap-fit ​​structure, which includes: a snap-fit ​​groove 112 formed on the mandrel 11; and a snap-fit ​​block 142 disposed on the first crimping sleeve 14, which snaps into the snap-fit ​​groove 112. Through this configuration, by setting the snap-fit ​​structure and using a crimping process to snap the snap-fit ​​block 142 into the snap-fit ​​groove 112, the first crimping sleeve 14 can be "hung" on the mandrel 11, making the first crimping sleeve 14 and the mandrel 11 a single unit, thereby making the tube body 2 and the mandrel 11 a single unit. This increases the connection strength between the tube body and the mandrel 11 and prevents the tube body 2 from detaching from the connector assembly 1.

[0051] It is understandable that the connection between the pipe body 2 and the connector assembly 1 is a critical flow point. By placing the first crimping sleeve 14 at the connection between the pipe body 2 and the connector assembly 1, the structural strength of the pipe body can be increased.

[0052] Understandably, the first crimping sleeve 14 is made of a material with high structural strength, such as stainless steel, which can further improve the structural strength of the tube body.

[0053] In some embodiments, the snap-fit ​​groove 112 can be formed on the first snap-fit ​​sleeve 14, and the snap-fit ​​block 142 can be disposed on the mandrel 11, so that the first snap-fit ​​sleeve 14 is "hung" on the mandrel 11.

[0054] Understandably, the first clamping sleeve 14 can also be fixed to the mandrel 11 by means of screw locking or other fixing methods.

[0055] In the ultra-high pressure hose connector assembly of this embodiment, see... Figure 2 The mandrel 11 includes a plurality of bosses 113 that vary progressively along the axial direction of the mandrel 11. Each boss 113 has at least one layer of winding material 21 distributed on it, and at least one layer of winding material 21 is fixedly connected to the boss 113. By setting multiple bosses 113, connection points between the mandrel 11 and the multiple layers of steel wire are formed, and the winding material layer 21 is fixedly connected to the bosses 113, so that the winding material layer 21 can be fixedly connected to the mandrel 11, further increasing the connection strength between the tube body 2 and the connector assembly 1, and preventing the tube body 2 from falling off from the connector assembly 1 due to high pressure liquid impact.

[0056] It should be noted that the multiple bosses 113 gradually change along the axial direction of the mandrel 11, thereby forming multiple annular stepped surfaces with progressively decreasing heights on the surface of the mandrel 11. These stepped surfaces correspond to the layers of winding material 21, ensuring that each layer of winding material 21 can be fixedly connected to the bosses 113. The connection surface between the bosses 113 and the winding material layer 21 is preferably a plane to maximize the contact area between them. Gradually changing annular protrusions can be used.

[0057] Preferably, when the winding material layer 21 is a steel wire layer, the winding material layer 21 is spot welded to the boss 113, and different connection processes can be adopted according to the type of winding material layer 21.

[0058] In some embodiments, the winding material layer 21 includes four layers, wherein the first winding material layer 21 is located between the first clamping sleeve 14 and the mandrel 11, the remaining three wire layers are located above the first clamping sleeve 14, and the remaining three wire layers are all welded to the boss 113.

[0059] In the ultra-high pressure hose connector assembly of this embodiment, see... Figure 2 The connector 12 has the following: an injection hole 126, which is connected to the installation space, through which glue is injected into the installation space to form the middle glue layer 22; and an outlet hole 127, which is connected to the installation space and is used to detect whether the glue injection is complete.

[0060] Specifically, adhesive is injected into the installation space through the injection hole 126 to form an intermediate adhesive layer 22 between the connector assembly 1 and the pipe body 2, thereby increasing the sealing performance between the connector assembly 1 and the pipe body 2. When the adhesive injection is finished, the adhesive will emerge from the gushing hole 127 to ensure that the intermediate adhesive layer 22 is fully formed and to prevent it from affecting the sealing performance of the connector.

[0061] Specifically, after the glue injection is completed, plugs are used to seal the glue injection hole 126 and the glue outlet hole 127 to further increase the sealing performance of the joint.

[0062] In some embodiments, the mounting hole 122 can also be used as the glue injection hole 126.

[0063] In the ultra-high pressure hose connector assembly of this embodiment, see... Figure 2 The connector assembly 1 includes a second crimping sleeve 15, which is sleeved on the outside of the pipe body 2. The second crimping sleeve 15 is connected to the connector 12 via a crimping structure, which includes a protrusion 151 and a groove 128, respectively disposed on the second crimping sleeve 15 and the connector 12. Specifically, the second crimping sleeve 15 has an annular protrusion 151 on the side near the connector 12, and the connector 12 has a groove 128 corresponding to the protrusion 151. The crimping structure crimps the second crimping sleeve 15 onto the connector 12, allowing the second crimping sleeve 15 to cover the middle adhesive layer, further improving the sealing performance of the connector.

[0064] In some embodiments, the protrusion 151 and the groove 128 are respectively disposed on the connector 12 and the second clamping sleeve 15.

[0065] In the ultra-high pressure hose connector assembly of this embodiment, see... Figure 2 A sealing groove 114 is provided on the outer surface of the mandrel 11, and a sealing ring 3 is contained in the sealing groove 114 to seal the connection between the mandrel 11 and the connector 12. Specifically, the sealing groove 114 is located on the side of the mandrel 11 near the port. By providing the sealing groove 114 and the sealing ring 3, leakage between the connector assembly 1 and the tube body 2 is prevented, and the sealing performance of the connector is increased.

[0066] In the assembly process of this embodiment, see Figure 3 The assembly process is applicable to the above-mentioned ultra-high pressure hose connector assembly, including: fitting the connector 12 onto the hose connector body so that after the connector 12 and the hose connector body are fitted into place, a movable channel for installing the positioning component 13 is formed between the connector 12 and the hose connector body; installing the positioning component 13 into the formed movable channel; injecting glue into the gap between the connector 12 and the hose connector body, and then performing vulcanization treatment to obtain the ultra-high pressure hose connector assembly.

[0067] Specifically, the ultra-high pressure hose connector assembly includes a connector assembly 1 and a hose body 2. The connector assembly 1 includes a mandrel 11 and a connector 12. The hose connector body is assembled from the mandrel 11 and a hose without an outer rubber layer.

[0068] Through the above assembly process, during the assembly of the hose connector, the positioning component 13 is installed in the moving channel between the connector 12 and the hose connector body, so that the positioning component 13 is located inside the connector assembly 1, restricting the relative position between the connector 12 and the hose connector body from the inside out, keeping the relative position between the connector 12 and the hose connector body unchanged. When there are large pressure fluctuations or high-frequency vibrations in the operating environment, it prevents the connector and the hose connector body from moving irregularly under the action of external forces, and prevents the relative displacement of the connector from causing thread uncoupling, resulting in damage or failure of the seal. This further solves the technical problem of easy leakage of the ultra-high pressure hose connector assembly in related technologies. In addition, the above assembly process reduces the installation difficulty of the positioning component 13 and improves the assembly efficiency of the ultra-high pressure hose connector.

[0069] In the assembly process of this embodiment, after the glue is injected, vulcanization is performed to bond the glue to the connector 12 and the glue and hose connector body as one piece, so that the injected glue is vulcanized and shaped, thereby forming a stable sealing structure.

[0070] In the assembly process of this embodiment, see Figure 2The connector 12 is fitted onto the hose connector body so that a moving channel for installing the positioning component 13 is formed between the connector 12 and the hose connector body after the connector 12 and the hose connector body are fitted into place. The steps include: fitting the connector 12 onto the hose connector body; aligning the limiting groove 121 on the connector 12 with the positioning groove 111 on the hose connector body, thereby forming a moving channel between the connector 12 and the hose connector body after the connector 12 and the hose connector body are fitted into place.

[0071] Specifically, when the positioning groove 111 is opened on the spindle 11, the axes of the spindle 11 and the connector 12 can always remain concentric, so that the connector 12 will not move relative to the spindle 11 along the axial direction, thereby achieving axial and radial positioning of the connector 12. By aligning the limiting groove 121 with the positioning groove 111, the positioning component 13 can enter the moving channel and be squeezed into the moving channel, thereby achieving the limiting function of the positioning component 13 on the connector 12 and the hose connector body respectively.

[0072] Specifically, the moving channel is used to accommodate the positioning component 13, and the positioning component 13 is interference-fitted with the moving channel. The positioning component 13 abuts against the positioning groove 111 and the limiting groove 121 respectively, so that the positioning component 13 is embedded in the moving channel, preventing the positioning component 13 from moving back and forth in the moving channel and causing the connector 12 and the spindle 11 to move out of alignment. This achieves circumferential positioning, axial positioning and radial positioning of the connector 12, and further improves the sealing performance of the hose connector.

[0073] In the assembly process of this embodiment, see Figure 3 The process of installing the positioning component 13 into the formed moving channel includes the following steps: Multiple positioning components 13 are sequentially installed into the moving channel through the mounting holes 122 located on the connector 12; after all the positioning components 13 are installed, the mounting holes 122 are sealed using a sealing component 123. Specifically, the multiple positioning components 13 are all located within the moving channel. The multiple positioning components 13 increase the contact area between the positioning components 13 and the moving channel, further preventing relative displacement between the connector 12 and the spindle 11, and further improving the sealing performance between the connector assembly 1 and the tube body 2; after all the positioning components 13 are installed, the mounting holes 122 are sealed using a sealing component 123 to fix the positioning components 13 and prevent them from coming out of the mounting holes 122.

[0074] In addition, since the positioning component 13 is interference-fitted with the moving channel, it is difficult for the positioning component 13 to move in the moving channel. Therefore, when installing the positioning component 13, it is necessary to use external force to knock the positioning component 13 into the moving channel.

[0075] In the assembly process of this embodiment, see Figure 3 Before fitting the connector 12 onto the hose connector body, the process includes the following steps: preparing a hose without an outer adhesive layer; sequentially fitting the first crimping sleeve 14 and the mandrel 11 onto the hose without an outer adhesive layer; fixing the hose without an outer adhesive layer to the first crimping sleeve 14 and the mandrel 11 respectively; and wrapping the hose without an outer adhesive layer with a winding material to form the hose connector body. Through the above assembly process, the mandrel 11 and the hose without an outer adhesive layer are connected as one unit, and the first crimping sleeve 14 is embedded in the multi-layer winding material layer 21, increasing the structural strength of the tube body 2.

[0076] Specifically, the hose without the outer rubber layer can be fixedly connected to the first crimping sleeve 14 and the mandrel 11 by means of crimping, threaded connection or other processes.

[0077] Specifically, the hose without an outer rubber layer is a tube body 2 containing only at least one layer of winding material 21.

[0078] In some embodiments, the existing hose connector can be directly used to prepare the hose without the outer rubber layer. The corresponding connector assembly 1 peels off part of the outer rubber layer and inner rubber layer of the existing hose connector, peels off the outer layer of the winding material layer 21, and retains only at least one layer of winding material layer 21. A layer of middle rubber is also wound on the retained at least one layer of winding material layer 21.

[0079] In some embodiments, the mandrel 11 and the first crimping sleeve 14 are connected by a snap-fit ​​structure, which includes: a snap-fit ​​groove 112 formed on the mandrel 11; and a snap-fit ​​block 142 disposed on the first crimping sleeve 14, snapping with the snap-fit ​​groove 112. By setting the snap-fit ​​structure, the snap-fit ​​block 142 is snapped into the snap-fit ​​groove 112, allowing the first crimping sleeve 14 to be "hung" on the mandrel 11, making the first crimping sleeve 14 and the mandrel 11 an integral unit, thereby making the tube body 2 and the mandrel 11 an integral unit, increasing the connection strength between the tube body and the mandrel 11, and preventing the tube body 2 from falling off the connector assembly 1. Therefore, before fixing the hose without the outer adhesive layer to the first crimping sleeve 14 and the mandrel 11 respectively, the snap-fit ​​block 142 needs to be snapped into the snap-fit ​​groove 112 first.

[0080] In some embodiments, the winding material layer 21 is a steel wire layer, which has strong strength and flexibility.

[0081] In the assembly process of this embodiment, see Figure 3The process involves wrapping a spiral material around the surface of a hose without an outer rubber layer to form the hose connector body. This includes the following steps: wrapping the spiral material layer by layer onto the surface of the hose without an outer rubber layer, thereby forming multiple layers of spiral material 21 on the hose. Each layer of spiral material 21 has a layer of intermediate rubber wrapped around its surface. This arrangement creates a structure of one layer of spiral material and one layer of intermediate rubber, further improving the sealing performance of the hose connector.

[0082] In the assembly process of this embodiment, see Figure 3 The process involves winding the material layer by layer onto the surface of the hose without an outer adhesive layer, thereby forming multiple layers of winding material 21 on the hose. Each layer of winding material 21 has a layer of intermediate adhesive wrapped around its surface. The process includes the following steps: at least one layer of winding material 21 is distributed on each boss 113 located on the mandrel 11, and at least one layer of winding material 21 is fixedly connected to the corresponding boss 113. Through the above assembly process, the winding material layers 21 are fixedly connected to the bosses 113, thereby fixing each layer of winding material 21 to the corresponding boss 113, further increasing the connection strength between the hose body 2 and the connector assembly 1, and preventing the hose body 2 from detaching from the connector assembly 1 due to high-pressure liquid impact.

[0083] Preferably, when the winding material layer 21 is a steel wire layer, the winding material layer 21 is spot welded to the boss 113.

[0084] In the assembly process of this embodiment, see Figure 3 Before fitting the connector 12 onto the hose fitting body, the following steps are included: fitting the second crimping sleeve 15 onto the hose fitting body. Through this process, the fitting of the second crimping sleeve 15 is completed before installing the connector 12, avoiding any interference with the installation of the second crimping sleeve 15 after the connector 12 is installed.

[0085] In the assembly process of this embodiment, see Figure 3 After installing the positioning component 13 into the formed moving channel, the following steps are included: fixing the second crimping sleeve 15 to the connector 12 and the hose connector body respectively. Specifically, after completing the installation of the positioning component 13, the second crimping sleeve 15 is fixedly connected to the connector 12 and the hose connector body as a whole using a crimping process or a threaded connection process.

[0086] Specifically, the second crimping sleeve 15 is connected to the connector 12 through a crimping structure. The crimping structure includes a protrusion 151 and a groove 128. The protrusion 151 and the groove 128 are respectively disposed on the second crimping sleeve 15 and the connector 12. Therefore, before the second crimping sleeve 15 is fixedly connected to the connector 12 and the hose connector body, the protrusion 151 needs to be embedded into the groove 128 to further improve the connection strength between the connector assembly 1 and the pipe body 2.

[0087] In the assembly process of this embodiment, see Figure 3 Injecting adhesive into the gap between the connector 12 and the hose connector body includes the following steps: injecting adhesive into the gap between the connector 12 and the hose connector body through the injection hole 126 to form a middle adhesive layer 22 until adhesive continuously overflows from the gushing hole 127 until there are no air bubbles; and sealing the injection hole 126 and the gushing hole 127 with a plug. Glue is injected into the gap between the connector 12 and the hose connector body through the injection hole 126, forming a middle glue layer 22 between the connector 12 and the hose connector body. The glue bonds each layer of winding material and each layer of middle glue into a whole, so that the multi-layer winding material layer 21 is embedded in the middle glue layer 22, increasing the sealing performance between the connector assembly 1 and the pipe body 2. By checking the glue leakage of the glue outlet 127, it is ensured that enough glue can be injected into the gap to ensure that the middle glue layer 22 is fully formed and to prevent affecting the sealing performance of the connector. By using a plug to seal the injection hole 126 and the glue outlet 127, waterproofing and dustproofing are achieved, further ensuring the sealing performance of the ultra-high pressure hose connector.

[0088] In the assembly process of this embodiment, before fitting the connector 12 onto the hose connector body, the following steps are included: sealing the connector 12 and the spindle 11, and assembling the sealing ring 3 into the sealing groove 114 on the spindle 11. Specifically, this can prevent leakage between the connector 12 and the spindle 11, increasing the sealing performance of the connector.

[0089] The following describes an optional embodiment of the assembly process in this utility model:

[0090] First, a hose without an outer rubber layer is prepared. The inner and outer rubber layers matching the connector assembly 1 are removed from the raw material of the hose body 2 according to the structural dimensions. All steel wire layers except the innermost layer of wound steel wire are peeled off. The first crimping sleeve 14 is fitted onto the outside of the hose without an outer rubber layer, and the mandrel 11 is axially pressed into the hose without an outer rubber layer. The mandrel 11, the hose without an outer rubber layer, and the first crimping sleeve 14 are crimped together by crimping. Then, a layer of middle rubber is wound on the outer surface of the hose without an outer rubber layer and the first crimping sleeve 14. The peeled second layer of steel wire is rewound onto the first crimping sleeve 14 and the mandrel 11. The second layer of steel wire is welded to the boss 113 on the mandrel 11 by welding. The weld size between the second layer of steel wire and the boss 113 meets the requirements for use of the ultra-high pressure hose connector, and the heat generated during the welding process should not damage the various rubber layers. Then, the third and fourth layers of steel wire are wound in sequence, and a medium rubber layer is used to isolate each layer of steel wire. Each layer of steel wire is welded to the mandrel 11 to achieve a reliable connection between each layer of steel wire and the mandrel 11. The weld size of each layer of steel wire and the boss 113 meets the requirements for use of the ultra-high pressure hose connector. The main body of the hose connector is formed after the above steps.

[0091] After forming the main body of the hose connector, the sealing ring 3 is assembled into the sealing groove 114. Then, the second crimping sleeve 15 and the connector 12 are axially fitted onto the main body of the hose connector in sequence. After the limiting groove 121 is aligned with the positioning groove 111, each positioning component 13 is assembled into the moving channel in sequence through the reserved mounting hole 122 on the connector 12, and the moving channel is evenly filled. After a sufficient number of positioning components 13 are installed in place, the mounting hole 122 is sealed with a sealing component 123 to prevent the positioning components 13 from falling out during transportation or storage. The end of the sealing component 123 has a groove that matches the size of the positioning component 13. After the sealing component 123 is installed in place, it can reliably fix the positioning component 13 and prevent the positioning component 13 from falling out of the mounting hole 122. Then, the protrusion 151 on the second crimping sleeve 15 is inserted into the groove 128, and the connector 12 and the second crimping sleeve 15 are crimped together using a crimping process. Then, the second crimping sleeve 15 is crimped together with the pipe body 2.

[0092] After the connector 12 and the hose fitting body are reliably connected as one unit, liquid colloid is injected into the gap between the connector 12 and the hose fitting body through the injection hole 126. After the colloid continuously overflows from the sprue hole 127 until there are no air bubbles, the injection hole 126 and the sprue hole 127 are sealed with a plug. Then, the ultra-high pressure hose fitting is placed in a vulcanizing bed for vulcanization. After vulcanization, the hose and the fitting can be reliably cured together. The ultra-high pressure hose fitting has good pull-out resistance in environments with ultra-high pressure pulsation and ultra-high pressure. The ultra-high pressure hose fitting can meet the usage requirements and assembly requirements of environments with large pressure fluctuations or high-frequency vibrations.

[0093] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0094] Optionally, specific examples in this embodiment can refer to the examples described in the above embodiments, and will not be repeated here.

[0095] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0096] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0097] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. An ultra-high pressure hose connector assembly, comprising a connector assembly (1) and a hose body (2), characterized in that, The connector assembly (1) includes: A mandrel (11) is provided with a tube (2) sleeved on its outer side, and the mandrel (11) is in communication with the tube (2); A connector (12) is provided, and an installation space for inserting the tube body (2) is formed between the connector (12) and the spindle (11). The connector (12) is fixedly connected to the outside of the tube body (2) located in the installation space. At least a portion of the connector (12) is sleeved on the spindle (11). Positioning component (13) is located at the connection between the mandrel (11) and the connector (12), and the positioning component (13) is used to limit the relative position between the connector (12) and the mandrel (11).

2. The ultra-high pressure hose connector assembly according to claim 1, characterized in that, The mandrel (11) has a positioning groove (111), one end of the positioning component (13) abuts against the connector (12), and the other end of the positioning component (13) abuts against the positioning groove (111).

3. The ultra-high pressure hose connector assembly according to claim 2, characterized in that, The connector (12) includes a limiting groove (121) corresponding to the positioning groove (111). The limiting groove (121) abuts against the positioning component (13). The limiting groove (121) and the positioning groove (111) together form a moving channel for accommodating the positioning component (13). The positioning component (13) is interference-fitted with the moving channel.

4. The ultra-high pressure hose connector assembly according to claim 3, characterized in that, The connector (12) includes: Mounting hole (122) penetrates the connector (12) and is connected to the moving channel. Positioning component (13) enters the moving channel through mounting hole (122). A sealing element (123) is detachably connected to the mounting hole (122).

5. The ultra-high pressure hose connector assembly according to claim 1, characterized in that, The tube (2) includes a multi-layer winding material layer (21) and a middle rubber layer (22) covering the multi-layer winding material layer (21).

6. The ultra-high pressure hose connector assembly according to claim 5, characterized in that, The connector (12) has a first adhesive groove (125) on the side near the tube body (2), and at least part of the middle adhesive layer (22) is located in the first adhesive groove (125).

7. The ultra-high pressure hose connector assembly according to claim 5, characterized in that, The connector assembly (1) includes a first crimping sleeve (14) which is embedded within the multilayer of the winding material layer (21).

8. The ultra-high pressure hose connector assembly according to claim 7, characterized in that, The mandrel (11) and the first clamping sleeve (14) are connected by a snap-fit ​​structure, the snap-fit ​​structure comprising: A snap-fit ​​groove (112) is formed on the spindle (11); A snap-fit ​​block (142) is disposed on the first snap-fit ​​sleeve (14) and snaps into the snap-fit ​​groove (112).

9. The ultra-high pressure hose connector assembly according to claim 5, characterized in that, The mandrel (11) includes a plurality of bosses (113) that vary progressively along the axial direction of the mandrel (11), and each boss (113) has at least one layer of the winding material (21) distributed on it, and at least one layer of the winding material (21) is fixedly connected to the boss (113).

10. The ultra-high pressure hose connector assembly according to claim 1, characterized in that, The connector assembly (1) includes a second crimping sleeve (15), which is sleeved on the outside of the tube body (2); The second crimping sleeve (15) is connected to the connector (12) by a crimping structure, the crimping structure including a protrusion (151) and a groove (128), the protrusion (151) and the groove (128) being respectively disposed on the second crimping sleeve (15) and the connector (12).

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