Ultrahigh-pressure hose joint assembly and assembly process thereof

Abstract

The ultrahigh-pressure hose connector assembly comprises a connector assembly and a pipe body, the connector assembly comprises a mandrel, the outer side of the mandrel is sleeved with the pipe body, and the mandrel 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 in the prior art, an ultrahigh-pressure hose connector assembly is prone to connector leakage is solved.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic pipeline joints, and in particular to an ultra-high pressure hose joint assembly and an assembly process thereof. Background Art

[0002] With the development of mining machinery, petroleum equipment, metallurgical forging, chemical industry, shipbuilding and other equipment technologies, ultra-high pressure hoses are increasingly used to transport fluid media with high pressure and a certain temperature. The maximum pressure resistance can reach 200MPa. Under more stringent conditions, the pressure resistance performance requirements are even higher. When the traditional hose and hose connector assembly form is used in the use environment with large pressure fluctuations or high-frequency vibrations, the hose connector will have thread stripping, which is difficult to meet the requirements of ultra-high pressure pulsation resistance and ultra-high pressure resistance. The connection between the hose connector and the hose is prone to failure and leakage, which leads to joint leakage. At the same time, after the hose connector has been used for a period of time, dust in the external environment will also enter the hose while leaking, causing hydraulic system failure, further increasing the cost of maintenance and repair.

[0003] Therefore, the prior art needs to be further developed. Summary of the invention

[0004] The purpose of the present invention is to overcome the above technical deficiencies and provide an ultra-high pressure hose joint assembly and an assembly process thereof to solve the technical problem in the related art that the ultra-high pressure hose joint assembly is prone to joint leakage.

[0005] In order to achieve the above technical objectives, the present invention adopts the following technical solutions: an ultra-high pressure hose connector assembly is provided, including a connector assembly and a tube body, the connector assembly includes: a core shaft, the outer side of the core shaft is sleeved with a tube body, the core shaft and the tube body are connected; a connector, an installation space for inserting the tube body is formed between the connector and the core shaft, the connector is fixedly connected to the outer side of the tube body located in the installation space, and at least a portion of the connector is sleeved on the core shaft; a positioning component, the positioning component is located at the connection between the core shaft and the connector, and the positioning component is used to limit the relative position between the connector and the core shaft.

[0006] Furthermore, a positioning groove is provided on the core shaft, 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 arranged corresponding to the positioning groove, the limiting groove abuts against the positioning component, the limiting groove and the positioning groove together enclose a moving channel for accommodating the positioning component, and the positioning component and the moving channel are interference fit.

[0008] Furthermore, the connector includes: a mounting hole, which passes through the connector and is connected to the movable channel, and the positioning component enters the movable channel through the mounting hole; and a blocking member, which is detachably connected to the mounting hole.

[0009] Furthermore, the pipe body includes a plurality of winding material layers and a middle rubber layer coated with the plurality of winding material layers.

[0010] Furthermore, a first glue containing groove is provided on a side of the connector close to the tube body, and at least a portion of the middle glue layer is located in the first glue containing groove.

[0011] Furthermore, the joint assembly includes a first crimping sleeve, which is embedded in the multi-layer winding material layer.

[0012] Furthermore, the core shaft and the first pressing sleeve are connected via a clamping structure, which includes: a clamping groove, which is arranged on the core shaft; and a clamping block, which is arranged on the first pressing sleeve and is clamped with the clamping groove.

[0013] Furthermore, the core shaft comprises a plurality of bosses which change step by step along the axial direction of the core shaft, at least one layer of winding material is distributed on each boss, and at least one layer of winding material is fixedly connected to the boss.

[0014] Furthermore, the joint assembly includes a second crimping sleeve, which is sleeved on the outside of the tube body; the second crimping sleeve and the connector are connected via a crimping structure, which includes a protrusion and a groove, which are respectively arranged on the second crimping sleeve and the connector.

[0015] An assembly process is applicable to the above-mentioned ultra-high pressure hose connector assembly, comprising: fitting a connector onto a hose connector body, so that after the connector and the hose connector body are fitted in place, a moving channel for installing a positioning component is formed between the connector and the hose connector body; installing the positioning component in the formed moving channel; injecting glue into the gap between the connector and the hose connector body, and then performing a vulcanization treatment to obtain the ultra-high pressure hose connector assembly.

[0016] Beneficial effects: 1. The relative position between the connector and the core shaft is limited by the positioning component, so that the relative position between the connector and the core shaft remains unchanged. When there is a large pressure fluctuation or high-frequency vibration in the use environment, the connector and the core shaft are prevented from performing irregular movements under the action of external force. The above-mentioned setting realizes anti-loosening treatment, avoids relative displacement of the joint resulting in thread backing, causing damage or failure of the seal, and further causing a decrease in the sealing ability, thereby maintaining the sealing between the joint assembly and the pipe body, so that it can indeed work stably and efficiently in a high-pressure, high-frequency vibration environment, so that the ultra-high pressure hose joint meets the use requirements of resistance to ultra-high pressure pulsation and ultra-high pressure, and solves the technical problem of easy joint leakage in the ultra-high pressure hose joint assembly in the related technology.

[0017] 2. The limiting groove and the positioning groove form a moving channel, and the moving channel is used to accommodate the positioning component, and the positioning component and the moving channel are interference fit to prevent the positioning component from moving back and forth in the moving channel and causing the connector and the core shaft to move out of position, thereby realizing the circumferential positioning, axial positioning and radial positioning of the connector, and further improving the sealing performance of the hose connector.

[0018] 3. By setting the first pressing sleeve, the tube body and the core shaft are integrated, which increases the connection strength between the tube body and the core shaft and prevents the tube body and the joint assembly from falling off; by setting the first pressing sleeve at the connection between the tube body and the joint 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, so that the positioning component is located inside the connector assembly, limiting the relative position between the connector and the hose connector body from the inside out, so that the relative position between the connector and the hose connector body remains unchanged. When there is a large pressure fluctuation or high-frequency vibration in the use environment, the connector and the hose connector body are prevented from performing irregular movements under the action of external forces, and relative displacement of the connector is avoided, resulting in thread stripping, causing damage or failure of the seal, further solving the technical problem of prone joint leakage in the ultra-high pressure hose connector assembly in the related art. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of an ultra-high pressure hose connector assembly used in an embodiment of the present invention; Figure 2 is a partial structural schematic diagram of an ultra-high pressure hose connector assembly used in an embodiment of the present invention; Figure 3 It is a flow chart of the assembly process adopted in the embodiment of the present invention.

[0021] The above drawings include the following reference numerals: 1. Joint assembly; 11. Mandrel; 111. Positioning groove; 112. Snap-fit ​​groove; 113. Boss; 114. Sealing groove; 12. Connector; 121. Limiting groove; 122. Mounting hole; 123. Blocking piece; 124. Abutment portion; 125. First glue-containing groove; 126. Glue injection hole; 127. Glue-emerging hole; 128. Groove; 13. Positioning component; 14. First pressing sleeve; 141. Second glue-containing groove; 142. Snap-fit ​​block; 15. Second pressing sleeve; 151. Boss; 2. Tube body; 21. Wrapping material layer; 22. Middle glue layer; 3. Sealing ring. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0023] According to an embodiment of the present invention, an ultra-high pressure hose connector assembly is provided. Figures 1 to 3 , including a joint assembly 1 and a tube body 2, the joint assembly 1 includes: a core shaft 11, the outer side of the core shaft 11 is sleeved with the tube body 2, the core shaft 11 is connected to the tube body 2; a connector 12, an installation space for inserting the tube body 2 is formed between the connector 12 and the core shaft 11, the connector 12 is fixedly connected to the outer side of the tube body 2 located in the installation space, and at least a part of the connector 12 is sleeved on the core shaft 11; a positioning component 13, the positioning component 13 is located at the connection between the core shaft 11 and the connector 12, and the positioning component 13 is used to limit the relative position between the connector 12 and the core shaft 11.

[0024] The relative position between the connector 12 and the core shaft 11 is limited by the positioning component 13, so that the relative position between the connector 12 and the core shaft 11 remains unchanged. When there is a large pressure fluctuation or high-frequency vibration in the use environment, the connector 12 and the core shaft 11 are prevented from performing irregular movement under the action of external force. The above-mentioned arrangement realizes anti-loosening treatment, avoids relative displacement of the joint resulting in thread backing, causing damage or failure of the seal, and further causing a decrease in the sealing ability, thereby maintaining the sealing between the joint assembly 1 and the tube body 2, so that it can indeed work stably and efficiently in a high-pressure, high-frequency vibration environment, so that the ultra-high pressure hose joint meets the use requirements of resistance to ultra-high pressure pulsation and ultra-high pressure, and solves the technical problem of easy joint leakage in the ultra-high pressure hose joint assembly in the related technology.

[0025] In the ultra-high pressure hose connector assembly of this embodiment, see Figure 2 A positioning groove 111 is provided on the mandrel 11, 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 the positioning groove 111 and the connector 12 respectively. By providing the positioning groove 111, the positioning component 13 is embedded in the positioning groove, so that the axial movement and radial movement of the connector 12 can be limited, so that the axis of the mandrel 11 and the connector 12 always remain concentric, so that the connector 12 will not move relative to the mandrel 11 along the axial direction, thereby achieving axial positioning and radial positioning of the connector 12.

[0026] In the ultra-high pressure hose connector assembly of this embodiment, see Figure 2The connector 12 includes a limiting groove 121 corresponding to the positioning groove 111, the limiting groove 121 abuts against the positioning member 13, and the limiting groove 121 and the positioning groove 111 together enclose a moving channel for accommodating the positioning member 13, and the positioning member 13 is interference-fitted with the moving channel. Specifically, by providing the limiting groove 121, the area of ​​the abutting surface between the positioning member 13 and the connector 12 is increased, thereby further limiting the relative position of the connector 12.

[0027] The limiting groove 121 and the positioning groove 111 form a moving channel, and the moving channel is used to accommodate the positioning component, and the positioning component 13 is interference fit with the moving channel to prevent the positioning component 13 from moving back and forth in the moving channel and causing the connector 12 and the core shaft 11 to be misaligned, thereby realizing the circumferential positioning, axial positioning and radial positioning of the connector 12, and further improving the sealing performance of the hose connector.

[0028] It should be noted that, in the prior art, a locating pin structure is usually used to position the connector 12, and the locating pin fixed on the connector 12 is abutted against the core shaft 11. However, when this structural form is applied to a high-pressure and high-vibration environment, the locating pin is very likely to loosen and shift, resulting in a gap between the locating pin and the connector, thereby causing the connector 12 to shift relative to the core shaft 11. In the ultra-high-pressure hose connector assembly of this embodiment, both ends of the locating component 13 are always in contact with the connector 12 and the core shaft 11, and the locating component 13 is always located in the moving channel and cannot fall out, which effectively avoids damage to the seal and improves the problem of leakage of the connector in the prior art.

[0029] In the ultra-high pressure hose connector assembly of this embodiment, see Figure 2 The connector 12 includes: a mounting hole 122, which passes through the connector 12 and is in communication with the moving channel, and the positioning component 13 enters the moving channel through the mounting hole 122; and a blocking member 123, which is detachably connected to the mounting hole 122. Specifically, the mounting hole 122 is used to allow the positioning component 13 to enter the moving channel, and the blocking member 123 is used to block the mounting hole 122 to prevent the positioning component 13 from falling out of the mounting hole 122.

[0030] Specifically, since the positioning component 13 is interference-fitted with the moving channel, when installing the positioning component 13 , it is necessary to knock the positioning component 13 into the moving channel with the help of external force.

[0031] In some embodiments, the positioning component 13 is a positioning ball, and the moving channel is a ballistic trajectory distributed in an annular manner on the core shaft 11 and the connector 12 .

[0032] In some embodiments, the positioning component 13 includes multiple positioning components 13, and the multiple positioning components 13 are all located in the movable channel. The multiple positioning components 13 increase the contact area between the positioning component 13 and the movable channel, further prevent relative displacement between the connecting head 12 and the core shaft 11, and further improve the sealing performance between the joint assembly 1 and the tube body 2.

[0033] It is understandable that due to the interference fit between the positioning component 13 and the moving channel, the positioning component 13 is difficult to move in the moving channel, so a plurality of mounting holes 122 are provided on the connecting head 12 to reduce the moving distance of the positioning component 13 in the moving channel and facilitate the assembly of the positioning component 13.

[0034] It can be understood that when the positioning component 13 is a positioning ball, the moving channel includes but is not limited to a circular channel, and can also be set to a V-shaped channel or a polygonal channel according to the shape of the positioning component 13.

[0035] In the ultra-high pressure hose connector assembly of this embodiment, see Figure 2 The blocking 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 positioning member 13 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.

[0036] In some embodiments, the core shaft 11 and the connector 12 are both made of stainless steel, which not only has high mechanical strength and wear resistance, but also has good corrosion resistance.

[0037] In some embodiments, the connector is provided with a thread structure to facilitate assembly and replacement of the connector. Preferably, the thread structure of the connector adopts an Axle-type trapezoidal thread, which not only has high mechanical strength, but also facilitates assembly and replacement of the connector assembly. At the same time, the connection method can also be designed as a flange or other cone sealing connection method according to user needs.

[0038] In the ultra-high pressure hose connector assembly of this embodiment, see Figure 2 The pipe body 2 includes a plurality of winding material layers 21 and a middle rubber layer 22 coated with the plurality of winding material layers 21 .

[0039] In the ultra-high pressure hose connector assembly of this embodiment, see Figure 2 A first glue containing groove 125 is provided on one side of the connector 12 close to the tube body 2, and at least part of the middle glue layer 22 is located in the first glue containing groove 125. Specifically, the first glue containing groove 125 is provided to accommodate part of the middle glue layer, thereby increasing the glue gripping force on the middle glue layer and increasing the connection strength between the connector 12 and the tube body 2.

[0040] Specifically, the pipe body 2 further includes an inner rubber layer and an outer rubber layer which are arranged on both sides of the inner and outer sides of the middle rubber layer 22 .

[0041] Specifically, the first adhesive groove 125 is an annular depression formed on the connector 12, and the sealing performance of the joint can be increased through the winding intersection between the connector 12 and the tube body 2. The cross section of the first adhesive groove 125 includes, but is not limited to, a rectangular, trapezoidal, parallelogram, and other shapes.

[0042] In some embodiments, a plurality of first adhesive holding grooves 125 are distributed along the axial direction of the connector 12 to increase the adhesive holding capability.

[0043] In some embodiments, the winding material layer 21 is a steel wire layer having strong strength and flexibility.

[0044] 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. The use of non-metallic materials can also meet the requirements of the tube body 2 for strength and toughness, reduce the weight of the tube body 2, and improve the corrosion resistance and high temperature resistance of the tube body 2. At the same time, it can not be detected by metal detectors in special application environments, which has special application significance.

[0045] In the ultra-high pressure hose connector assembly of this embodiment, see Figure 2 The joint assembly 1 includes a first pressing sleeve 14, which is embedded in the multi-layer winding material layer 21. Specifically, by providing the first pressing sleeve 14, the first pressing sleeve 14 is embedded in the multi-layer winding material layer 21, and the structural strength of the pipe body 2 is increased.

[0046] Specifically, a winding material layer 21 is laid on the side of the first crimping sleeve 14 away from the core shaft 11, and a plurality of second glue-containing grooves 141 are opened on the side of the first crimping sleeve 14 close to the core shaft 11. There is at least one layer of steel wire ring and at least part of the middle rubber layer 22 between the first crimping sleeve 14 and the core shaft 11. The first crimping sleeve 14 is embedded in the tube body 2 before the middle rubber layer 22 is formed, so that the connection between the first crimping sleeve 14 and the tube body 2 is stable, preventing the first crimping sleeve 14 from loosening and falling off.

[0047] In the ultra-high pressure hose connector assembly of this embodiment, see Figure 2The mandrel 11 and the first pressing sleeve 14 are connected by a clamping structure, and the clamping structure includes: a clamping groove 112, which is provided on the mandrel 11; a clamping block 142, which is provided on the first pressing sleeve 14, and the clamping block 142 is clamped with the clamping groove 112. Through the above arrangement, by providing the clamping structure, the clamping block 142 is clamped into the clamping groove 112 through the clamping process, and the first pressing sleeve 14 can be "hung" on the mandrel 11, so that the first pressing sleeve 14 and the mandrel 11 become one, and then the pipe body 2 and the mandrel 11 become one, which increases the connection strength between the pipe body and the mandrel 11, and prevents the pipe body 2 and the joint assembly 1 from falling off.

[0048] It can be understood that the connection between the pipe body 2 and the joint assembly 1 is a key flow-through position, and by arranging the first crimping sleeve 14 at the connection between the pipe body 2 and the joint assembly 1, the structural strength of the pipe body can be increased.

[0049] It is understandable that the first pressing 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.

[0050] In some embodiments, the clamping groove 112 can be opened on the first pressing sleeve 14 , and the clamping block 142 can be set on the core shaft 11 , so that the first pressing sleeve 14 is “hung” on the core shaft 11 .

[0051] It is understandable that the first pressing sleeve 14 may also be fixed to the core shaft 11 by means of screw locking or other fixing methods.

[0052] In the ultra-high pressure hose connector assembly of this embodiment, see Figure 2 The mandrel 11 includes a plurality of bosses 113 that change step by step along the axial direction of the mandrel 11, and at least one layer of winding material layer 21 is distributed on each boss 113, and at least one layer of winding material layer 21 is fixedly connected to the boss 113. By providing a plurality of bosses 113, a connection point between the mandrel 11 and the multiple steel wire layers is formed, and the winding material layer 21 is fixedly connected to the boss 113, so that the winding material layer 21 can be fixedly connected to the mandrel 11, further increasing the connection strength between the pipe body 2 and the joint assembly 1, and preventing the pipe body 2 and the joint assembly 1 from falling off due to the impact of high-pressure liquid.

[0053] It should be noted that the plurality of bosses 113 change step by step along the axial direction of the core shaft 11, thereby forming a plurality of annular step surfaces with gradually decreasing heights on the surface of the core shaft 11, and the plurality of step surfaces correspond to the winding material layers 21 wound layer by layer, thereby ensuring that each layer of the winding material layer 21 can be fixedly connected to the boss 113, and the connecting surface between the boss 113 and the winding material layer 21 is preferably a plane, so as to maximize the contact area between the boss 113 and the winding material layer 21, and a gradually changing annular protrusion can be used. 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 may be used according to the type of the winding material layer 21 .

[0054] In some embodiments, the winding material layer 21 includes four layers, wherein the first winding material layer 21 is located between the first crimping sleeve 14 and the core shaft 11 , the remaining three steel wire layers are located above the first crimping sleeve 14 , and the remaining three steel wire layers are welded to the boss 113 .

[0055] In the ultra-high pressure hose connector assembly of this embodiment, see Figure 2 The connector 12 is provided with: a glue injection hole 126, which is connected to the installation space, and glue is injected into the installation space through the glue injection hole 126 to form a middle glue layer 22; and a glue emitting hole 127, which is connected to the installation space and is used to detect whether the glue injection is completed.

[0056] Specifically, glue is injected into the installation space through the glue injection hole 126 to form a middle glue layer 22 between the joint assembly 1 and the tube body 2, thereby increasing the sealing performance between the joint assembly 1 and the tube body 2. When the glue injection is completed, the glue will emerge from the glue emitting hole 127 to ensure that the middle glue layer 22 is completely formed to prevent affecting the sealing performance of the joint.

[0057] Specifically, after the glue injection is completed, the glue injection hole 126 and the glue escaping hole 127 are sealed with a plug to further improve the sealing performance of the joint.

[0058] In some embodiments, the mounting hole 122 may also be used as the glue injection hole 126 .

[0059] In the ultra-high pressure hose connector assembly of this embodiment, see Figure 2 The joint assembly 1 includes a second pressing sleeve 15, which is sleeved on the outer side of the pipe body 2; the second pressing sleeve 15 is connected to the connector 12 through a pressing structure, which includes a convex block 151 and a groove 128, which are respectively arranged on the second pressing sleeve 15 and the connector 12. Specifically, a ring-shaped convex block 151 is arranged on the side of the second pressing sleeve 15 close to the connector 12, and a groove 128 corresponding to the convex block 151 is opened on the connector 12. The second pressing sleeve 15 is pressed on the connector 12 through the pressing structure, so that the second pressing sleeve 15 can cover the middle rubber layer, further improving the sealing performance of the joint.

[0060] In some embodiments, the protrusion 151 and the groove 128 are respectively disposed on the connector 12 and the second pressing sleeve 15 .

[0061] In the ultra-high pressure hose connector assembly of this embodiment, see Figure 2A sealing groove 114 is provided on the outer surface of the core shaft 11, and a sealing ring 3 is contained in the sealing groove 114, so that the core shaft 11 and the connector 12 are sealed and connected. Specifically, the sealing groove 114 is located on the side of the core shaft 11 close to the port. By providing the sealing groove 114 and the sealing ring 3, leakage between the joint assembly 1 and the pipe body 2 is prevented, and the sealing performance of the joint is increased.

[0062] 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 in place, a moving channel for installing the positioning component 13 is formed between the connector 12 and the hose connector body; installing the positioning component 13 in the formed moving 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.

[0063] Specifically, the ultra-high pressure hose connector assembly includes a connector component 1 and a pipe body 2. The connector component 1 includes a core shaft 11 and a connector 12. The hose connector body is assembled from the core shaft 11 and a hose without an outer rubber layer.

[0064] Through the above-mentioned assembly process, during the assembly process of the hose connector, the positioning component 13 is installed in the moving channel between the connecting head 12 and the hose connector body, so that the positioning component 13 is located inside the connector assembly 1, and the relative position between the connecting head 12 and the hose connector body is restricted from the inside to the outside, so that the relative position between the connecting head 12 and the hose connector body remains unchanged, and when there is a large pressure fluctuation or high-frequency vibration in the use environment, the connecting head and the hose connector body are prevented from performing irregular movements under the action of external forces, and the relative displacement of the connector is prevented from causing the thread to be stripped, causing damage or failure of the seal, which further solves the technical problem of the ultra-high pressure hose connector assembly in the related art that the ultra-high pressure hose connector assembly is prone to joint leakage; in addition, the above-mentioned assembly process reduces the installation difficulty of the positioning component 13 and improves the assembly efficiency of the ultra-high pressure hose connector.

[0065] In the assembly process of this embodiment, vulcanization is performed after the injection of glue is completed, and the glue and the connector 12 and the glue and the hose connector body are bonded together, so that the injected glue is vulcanized and shaped to form a stable sealing structure.

[0066] In the assembly process of this embodiment, see Figure 2, the connector 12 is mounted on the hose connector body so that after the connector 12 and the hose connector body are mounted in place, a moving channel for installing the positioning component 13 is formed between the connector 12 and the hose connector body, including the following steps: the connector 12 is mounted on the hose connector body; the limiting groove 121 on the connector 12 is aligned with the positioning groove 111 on the hose connector body, so that after the connector 12 and the hose connector body are mounted in place, a moving channel is formed between the connector 12 and the hose connector body.

[0067] Specifically, when the positioning groove 111 is opened on the core shaft 11, the axes of the core shaft 11 and the connector 12 can always remain concentric, so that the connector 12 will not move relative to the core shaft 11 along the axial direction, thereby realizing axial positioning and radial positioning of the connector 12, and by aligning the limiting groove 121 with the positioning groove 111, the positioning component 13 can enter the moving channel and be squeezed in the moving channel, thereby realizing the limiting effect of the positioning component 13 on the connector 12 and the hose connector body respectively.

[0068] Specifically, the movable channel is used to accommodate the positioning component 13, and the positioning component 13 is interference fit with the movable channel, and the positioning component 13 is respectively abutted against the positioning groove 111 and the limit groove 121, so that the positioning component 13 is embedded in the movable channel, preventing the positioning component 13 from moving back and forth in the movable channel and causing the connector 12 and the core shaft 11 to be misaligned, thereby realizing the circumferential positioning, axial positioning and radial positioning of the connector 12, and further improving the sealing performance of the hose connector.

[0069] In the assembly process of this embodiment, see Figure 3 , installing the positioning component 13 in the formed moving channel includes the following steps: installing multiple positioning components 13 in the moving channel in sequence through the mounting holes 122 located on the connector 12; when all the multiple positioning components 13 are installed, the mounting holes 122 are blocked by the blocking piece 123. Specifically, the multiple positioning components 13 are all located in the moving channel, and the multiple positioning components 13 increase the contact area between the positioning components 13 and the moving channel, further preventing the relative displacement between the connector 12 and the core shaft 11, and further improving the sealing performance between the joint assembly 1 and the pipe body 2; when all the multiple positioning components 13 are installed, the mounting holes 122 are blocked by the blocking piece 123 to complete the fixation of the positioning components 13, so as to prevent the positioning components 13 from falling out of the mounting holes 122.

[0070] In addition, since the positioning component 13 is interference fit 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.

[0071] In the assembly process of this embodiment, see Figure 3 Before the connector 12 is mounted on the hose connector body, the following steps are included: prepare a hose without an outer rubber layer, mount the first crimping sleeve 14 and the core shaft 11 on the hose without an outer rubber layer in sequence; fix the hose without an outer rubber layer to the first crimping sleeve 14 and the core shaft 11 respectively; and wrap the winding material around the surface of the hose without an outer rubber layer to form the hose connector body. Through the above assembly process, the core shaft 11 and the hose without an outer rubber layer are connected as a whole, so that the first crimping sleeve 14 is embedded in the multi-layer winding material layer 21, thereby increasing the structural strength of the tube body 2.

[0072] Specifically, a crimping process, a threaded connection process or the like may be used to fix the hose without the outer rubber layer to the first crimping sleeve 14 and the core shaft 11 , respectively.

[0073] Specifically, the hose without an outer rubber layer is a pipe body 2 that only includes at least one layer of winding material 21 .

[0074] In some embodiments, an existing hose connector can be directly used to prepare a hose without an outer rubber layer. The corresponding connector assembly 1 peels off part of the outer rubber layer and the inner rubber layer of the existing hose connector, peels off the winding material layer 21 located on the outer layer, and only retains at least one layer of the winding material layer 21. The retained at least one layer of the winding material layer 21 is also wrapped with a layer of middle rubber.

[0075] In some embodiments, the core shaft 11 and the first buckling sleeve 14 are connected by a snap-fit ​​structure, and the snap-fit ​​structure includes: a snap-fit ​​groove 112, which is provided on the core shaft 11; a snap-fit ​​block 142, which is provided on the first buckling sleeve 14, and the snap-fit ​​block 142 is snap-fitted with the snap-fit ​​groove 112. By providing the snap-fit ​​structure, the snap-fit ​​block 142 is snapped into the snap-fit ​​groove 112, and the first buckling sleeve 14 can be "hung" on the core shaft 11, so that the first buckling sleeve 14 and the core shaft 11 become one, and then the tube body 2 and the core shaft 11 become one, thereby increasing the connection strength between the tube body and the core shaft 11, and preventing the tube body 2 from falling off from the joint assembly 1. Therefore, before the hose without the outer rubber layer is fixedly connected to the first buckling sleeve 14 and the core shaft 11 respectively, it is necessary to first snap the snap-fit ​​block 142 into the snap-fit ​​groove 112.

[0076] In some embodiments, the winding material layer 21 is a steel wire layer having strong strength and flexibility.

[0077] In the assembly process of this embodiment, see Figure 3The winding material is wound onto the surface of the hose without the outer rubber layer to form the hose connector body, which includes the following steps: the winding material is wound layer by layer onto the surface of the hose without the outer rubber layer, thereby forming a plurality of winding material layers 21 on the hose, and a layer of middle rubber is wound on the surface of each winding material layer 21. Through the above arrangement, a structure of one layer of winding material and one layer of middle rubber is formed, further improving the sealing performance of the hose connector.

[0078] In the assembly process of this embodiment, see Figure 3 , winding the winding material layer by layer onto the surface of the hose without the outer rubber layer, thereby forming multiple winding material layers 21 on the hose, and each winding material layer 21 is wound with a layer of middle rubber on the surface, including the following steps: at least one winding material layer 21 is distributed on each boss 113 located on the core shaft 11, and at least one winding material layer 21 is fixedly connected to the corresponding boss 113. Through the above-mentioned assembly process, the winding material layer 21 is fixedly connected to the boss 113, and each winding material layer 21 is fixedly connected to the corresponding boss 113, further increasing the connection strength between the pipe body 2 and the joint assembly 1, and preventing the pipe body 2 and the joint assembly 1 from falling off due to the impact of high-pressure liquid.

[0079] Preferably, when the winding material layer 21 is a steel wire layer, the winding material layer 21 is welded to the boss 113 by spot welding.

[0080] In the assembly process of this embodiment, see Figure 3 Before the connector 12 is mounted on the hose connector body, the following steps are included: the second pressing sleeve 15 is mounted on the hose connector body. Through the above process, the second pressing sleeve 15 is mounted before the connector 12 is installed, so as to avoid affecting the installation of the second pressing sleeve 15 after the connector 12 is installed.

[0081] In the assembly process of this embodiment, see Figure 3 After the positioning component 13 is installed in the formed moving channel, the following steps are included: the second pressing sleeve 15 is fixedly connected to the connector 12 and the hose connector body respectively. Specifically, after the positioning component 13 is installed, the second pressing sleeve 15 is fixedly connected to the connector 12 and the hose connector body respectively as a whole by using a pressing process or a threaded connection process.

[0082] Specifically, the second crimping sleeve 15 is connected to the connector 12 via a crimping structure, which includes a protrusion 151 and a groove 128. The protrusion 151 and the groove 128 are respectively arranged 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 in the groove 128 first, so as to further improve the connection strength between the connector assembly 1 and the pipe body 2.

[0083] In the assembly process of this embodiment, see Figure 3 , injecting glue into the gap between the connector 12 and the main body of the hose connector, including the following steps: injecting glue into the gap between the connector 12 and the main body of the hose connector through the glue injection hole 126 to form a middle glue layer 22, until the glue emitting hole 127 continuously overflows the glue until there are no bubbles; and using a plug to seal the glue injection hole 126 and the glue emitting hole 127. Glue is injected into the gap between the connector 12 and the main body of the hose connector through the glue injection hole 126 to form a middle glue layer 22 between the connector 12 and the main body of the hose connector. The glue bonds each layer of the winding material and each layer of the middle glue into a whole, so that the multiple winding material layers 21 are embedded in the middle glue layer 22, thereby increasing the sealing performance between the connector assembly 1 and the tube body 2. By checking the glue emitting condition of the glue emitting hole 127, it is ensured that enough colloid can be injected into the gap, and the middle glue layer 22 is ensured to be fully formed to prevent affecting the sealing performance of the connector. By using a plug to seal the glue injection hole 126 and the glue emitting hole 127, waterproofing and dustproofing are achieved, and the sealing performance of the ultra-high pressure hose connector is further ensured.

[0084] In the assembly process of this embodiment, before the connector 12 is mounted on the hose connector body, the following steps are included: sealing is performed between the connector 12 and the core shaft 11, and the sealing ring 3 is assembled into the sealing groove 114 on the core shaft 11. Specifically, leakage between the connector 12 and the core shaft 11 can be prevented, and the sealing performance of the connector can be improved.

[0085] An optional embodiment of the assembly process of the present invention is described below: First, prepare a hose without an outer rubber layer, peel off the inner rubber layer and outer rubber layer that match the joint assembly 1 according to the structural size of the raw material of the tube body 2, peel off the other steel wire layers except the innermost layer of wound steel wire, put the first crimping sleeve 14 on the outside of the hose without an outer rubber layer, and axially press the core shaft 11 into the hose without an outer rubber layer, press the core shaft 11, the hose without an outer rubber layer and the first crimping sleeve 14 into one piece by crimping, then wind a layer of middle rubber around the outer surface of the hose without an outer rubber layer and the first crimping sleeve 14, and rewind the peeled second steel wire layer onto the first crimping sleeve 14 and the core shaft 11, and weld the second steel wire layer and the boss 113 on the core shaft 11 into one piece by welding, the weld size between the second steel wire layer and the boss 113 meets the use requirements of the ultra-high pressure hose joint, and the heat generated during the welding process cannot damage the various rubber layers. Then, the third layer of steel wire and the fourth layer of steel wire are wound in turn, and the middle rubber layer is used to isolate the steel wire layers. The steel wire layers are welded together with the core shaft 11 to achieve a reliable connection between the steel wire layers and the core shaft 11, and the weld size between each layer of steel wire and the boss 113 meets the use requirements of the ultra-high pressure hose connector. After the above steps, the hose connector body is formed.

[0086] After forming the main body of the hose connector, assemble the sealing ring 3 into the sealing groove 114, and then axially fit the second pressing sleeve 15 and the connector 12 onto the main body of the hose connector in turn. After the limiting groove 121 is aligned with the positioning groove 111, assemble each positioning component 13 into the moving channel in turn through the reserved mounting hole 122 on the connector 12, and evenly fill the moving channel. When a sufficient number of positioning components 13 are fully installed, the mounting hole 122 is blocked with a blocking member 123 to prevent the positioning component 13 from falling out during transportation or storage. A groove matching the size of the positioning component 13 is made at the end of the blocking member 123. After the blocking member 123 is installed in place, the positioning component 13 can be reliably fixed to prevent the positioning component 13 from falling out of the mounting hole 122. Then, the protrusion 151 on the second pressing sleeve 15 is embedded into the groove 128, and the connector 12 and the second pressing sleeve 15 are pressed into one piece by a pressing process, and then the second pressing sleeve 15 and the tube body 2 are pressed into one piece.

[0087] After the connector 12 and the hose connector body are reliably connected as one, liquid colloid is injected into the gap between the connector 12 and the hose connector body through the glue injection hole 126. After the colloid continuously overflows from the glue emitting hole 127 until there are no bubbles, the glue injection hole 126 and the glue emitting hole 127 are sealed with a plug, and then the ultra-high pressure hose connector is placed in a vulcanizing bed for vulcanization. After the vulcanization treatment, the hose and the connector can be reliably solidified together. The ultra-high pressure hose connector has good anti-pullout performance in the use environment of ultra-high pressure pulsation resistance and ultra-high pressure resistance. The ultra-high pressure hose connector can meet the use needs and assembly requirements of the use environment with large pressure fluctuations or high-frequency vibrations.

[0088] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0089] Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments, and this embodiment will not be described in detail here.

[0090] The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0091] In the above embodiments of the present application, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0092] The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. An ultra-high pressure hose connector assembly, comprising a connector assembly (1) and a tube body (2), characterized in that: The joint assembly (1) comprises: A core shaft (11), the tube body (2) being sleeved on the outer side of the core shaft (11), the core shaft (11) being in electrical communication with the tube body (2); A connector (12), wherein an installation space for inserting the tube body (2) is formed between the connector (12) and the core shaft (11), the connector (12) is fixedly connected to the outer side of the tube body (2) located in the installation space, and at least a portion of the connector (12) is sleeved on the core shaft (11); A positioning component (13), the positioning component (13) being located at a connection point between the core shaft (11) and the connecting head (12), the positioning component (13) being used to limit a relative position between the connecting head (12) and the core shaft (11).

2. The ultra-high pressure hose connector assembly according to claim 1, characterized in that: A positioning groove (111) is provided on the core shaft (11), 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) comprises a limiting groove (121) arranged 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 enclose a moving channel for accommodating the positioning component (13); the positioning component (13) and the moving channel are interference fit.

4. The ultra-high pressure hose connector assembly according to claim 3, characterized in that: The connector (12) comprises: a mounting hole (122), the mounting hole (122) penetrating the connector (12), the mounting hole (122) being in communication with the movable channel, and the positioning component (13) entering the movable channel through the mounting hole (122); A blocking piece (123), the blocking piece (123) being detachably connected to the mounting hole (122).

5. The ultra-high pressure hose connector assembly according to claim 1, characterized in that: The pipe body (2) comprises a plurality of winding material layers (21) and a middle rubber layer (22) coated with the plurality of winding material layers (21).

6. The ultra-high pressure hose connector assembly according to claim 5, characterized in that: A first glue containing groove (125) is provided on a side of the connector (12) close to the tube body (2), and at least a portion of the middle glue layer (22) is located in the first glue containing groove (125).

7. The ultra-high pressure hose connector assembly according to claim 5, characterized in that: The joint assembly (1) comprises a first pressing sleeve (14), wherein the first pressing sleeve (14) is embedded in the multiple layers of winding material (21).

8. The ultra-high pressure hose connector assembly according to claim 7, characterized in that: The core shaft (11) and the first pressing sleeve (14) are connected via a clamping structure, and the clamping structure comprises: A clamping groove (112), wherein the clamping groove (112) is formed on the core shaft (11); A clamping block (142), the clamping block (142) being arranged on the first pressing sleeve (14), the clamping block (142) being clamped with the clamping groove (112).

9. The ultra-high pressure hose connector assembly according to claim 5, characterized in that: The core shaft (11) comprises a plurality of bosses (113) that change step by step along the axial direction of the core shaft (11), at least one layer of the winding material layer (21) being distributed on each of the bosses (113), and at least one layer of the winding material layer (21) being fixedly connected to the boss (113).

10. The ultra-high pressure hose connector assembly according to claim 1, characterized in that: The joint assembly (1) comprises a second pressing sleeve (15), wherein the second pressing sleeve (15) is sleeved on the outside of the tube body (2); The second pressing sleeve (15) and the connecting head (12) are connected via a pressing structure, wherein the pressing structure comprises a protrusion (151) and a groove (128), wherein the protrusion (151) and the groove (128) are respectively arranged on the second pressing sleeve (15) and the connecting head (12).

11. An assembly process, characterized in that: The assembly process is applicable to the ultra-high pressure hose connector assembly according to any one of claims 1 to 10, comprising: The connecting head (12) is mounted on the hose connector body, so that after the connecting head (12) and the hose connector body are mounted in place, a moving channel for mounting a positioning component (13) is formed between the connecting head (12) and the hose connector body; Installing the positioning component (13) in the formed moving channel; Glue is injected into the gap between the connector (12) and the hose connector body, and then vulcanization is performed to obtain an ultra-high pressure hose connector assembly.

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