Pipeline connecting structure

Abstract

The utility model relates to the technical field of lithium battery manufacturing equipment, in particular to a pipeline connecting structure. A pipeline connecting structure comprises a support assembly, a plug assembly and a floating connecting assembly, the plug assembly is connected between a first hose and a second hose so as to communicate the first hose with the second hose, and the plug assembly and the support assembly are in floating connection through the floating connecting assembly so that when the position of the plug assembly deviates, the plug assembly can be connected with the support assembly. The floating connection assembly can reset the plug assembly. When the first hose and the second hose are in butt joint, the floating connecting assembly allows the plug assembly to freely shift within a certain range so as to adapt to tiny position differences between different hoses, the connection problem caused by installation errors or hose deformation is reduced, pipeline butt joint can be completed without accurately corresponding pipe openings, and the pipeline butt joint efficiency is improved. And the floating connection assembly allows the plug assembly to automatically reset after the position of the plug assembly deviates, so that the tightness of pipeline connection is ensured.

Description

Technical Field

[0001] This application relates to the technical field of lithium battery manufacturing equipment, and particularly relates to a pipeline connection structure. Background Art

[0002] The technical field of lithium battery manufacturing equipment is an important part of the new energy industry, which covers the entire production process of lithium-ion batteries from raw material processing to finished battery assembly. In this process, including multiple key process steps such as stirring, coating, rolling, slitting, winding, assembling, forming, cleaning, and drying, each step has extremely high requirements for the accuracy, efficiency, and automation of the equipment. With the rapid development of the lithium battery industry, higher standards have been put forward for the performance and reliability of manufacturing equipment, prompting the industry to continuously carry out technological innovation and process optimization. The forming process is one of the key steps in lithium battery manufacturing. During the forming process, the battery needs to be in contact with the negative pressure component, and the negative pressure component is evacuated through a pipeline to ensure a stable negative pressure environment for the battery and promote the uniform infiltration of the electrolyte. Therefore, the negative pressure component will come into contact with the electrolyte, and the components such as lithium salts and organic solvents that may remain in the electrolyte need to be cleaned. During the cleaning process, the negative pressure component also needs to be connected to the cleaning device through a pipeline connection to introduce the cleaning liquid to clean the negative pressure component.

[0003] In the above process, the pipeline is a key component for material transportation, gas transmission, and environmental control. Traditional pipeline connection methods mostly use rigid connections. Although this method ensures the firmness and tightness of the connection to a certain extent, it also has obvious disadvantages. Rigid connections have extremely high requirements for installation accuracy. Even a slight deviation may cause the pipe head to deform, affecting the tightness and stability of the connection. Utility Model Content

[0004] The embodiments of this application disclose a pipeline connection structure that can achieve floating contact between pipelines and reduce the phenomenon of uneven pressure at the pipeline connection.

[0005] To achieve the above objective, the embodiments of this application disclose a pipeline connection structure for connecting a first hose and a second hose of a negative pressure component. The pipeline connection structure includes:

[0006] A bracket assembly;

[0007] A plug assembly, which is connected between the first hose and the second hose to communicate the first hose and the second hose;

[0008] A floating connection assembly, through which the plug assembly and the bracket assembly are floatingly connected, so that when the position of the plug assembly is offset, the floating connection assembly can reset the plug assembly.

[0009] As an alternative embodiment, the plug assembly includes a first plug and a second plug. The first plug is connected to the first hose, and the second plug is connected to the second hose. The first plug can be plugged and mated with the second plug to connect the first hose and the second hose. The bracket assembly includes a first plug mounting bracket, and the floating connection assembly includes a first floating connection unit. The first plug and the first plug mounting bracket are floatingly connected through the first floating connection unit.

[0010] As an alternative embodiment, the first floating connection unit includes a floating connection seat and a first elastic member. The floating connection seat is fixedly mounted on the first plug mounting bracket. The floating connection seat and the first plug are connected through a spherical pair. The first elastic member is used to apply a force to the first plug to press the first plug and the floating connection seat together, so that when the first plug has a radial offset, the first plug can be reset under the action of the spherical pair.

[0011] As an alternative embodiment, the floating connection seat includes a first surface and a second surface arranged opposite to each other. The floating connection seat is provided with a first mounting hole penetrating through the first surface and the second surface. The spherical pair includes a first spherical surface provided on the first surface and a second spherical surface provided on the first plug. The center of the first spherical surface is located on the axis of the first mounting hole, and the center of the second spherical surface is located on the axis of the first plug. The first spherical surface is one of a convex spherical surface and a concave spherical surface, and the second spherical surface is the other of the convex spherical surface and the concave spherical surface.

[0012] As an alternative embodiment, the plug assembly further includes a stopper. The stopper is connected to the first plug and is arranged opposite to the second surface. The first elastic member is a spring. One end of the first elastic member abuts against the stopper, and the other end abuts against the second surface of the floating connection seat.

[0013] As an alternative embodiment, the stopper is provided with a first groove, and the second surface is provided with a second groove. One end of the first elastic member abuts against the bottom of the first groove, and the other end abuts against the bottom of the second groove.

[0014] As an alternative embodiment, the floating connection assembly further includes a second floating connection unit. The bracket assembly further includes a second plug mounting bracket. The second plug and the second plug mounting bracket are floatingly connected through the second floating connection unit.

[0015] As an alternative embodiment, the second floating connection unit includes a first mounting member, a second elastic member, and a second mounting member. The first mounting member is fixedly connected to the second plug mounting bracket. A second mounting hole is provided in the first mounting member. The second mounting member is disposed in the second mounting hole and is radially connected to the first mounting member by the second elastic member. The second plug is connected to the second mounting member. The second elastic member is configured to provide a radial restoring force for the second plug when the second plug moves radially relative to the first mounting member.

[0016] As an alternative embodiment, a third mounting hole is provided in the second plug mounting bracket. One end of the second plug away from the first plug passes through the third mounting hole to connect to the second hose. There is a radial gap between the third mounting hole and the second plug.

[0017] As an alternative embodiment, the second elastic member is a shrapnel. One end of the second elastic member is fixedly connected to the first mounting member, and the other end is fixedly connected to the second mounting member.

[0018] As an alternative embodiment, the second mounting member is a ring structure. The straight line where the two ends of the second elastic member are connected does not pass through the center of the second mounting member.

[0019] As an alternative embodiment, the second elastic member is an arc-shaped shrapnel. There are a plurality of arc-shaped shrapnels, and the convex arc surfaces of the plurality of arc-shaped shrapnels all face the first mounting member.

[0020] As an alternative embodiment, the arc-shaped shrapnels are arranged at equal intervals along the circumference of the second mounting member.

[0021] As an alternative embodiment, a ring groove is provided in the circumference of the second plug. The second mounting member is clamped in the ring groove so that the second plug and the second mounting member are fixed along the axial direction of the second plug.

[0022] As an alternative embodiment, the pipe connection structure further includes a driving member. The driving member is connected to the second plug mounting bracket to drive the second plug to move along the first direction, so as to realize the insertion of the first plug and the second plug.

[0023] As an alternative embodiment, the driving member includes a cylinder and a push rod. The bracket assembly further includes a support frame. The cylinder is installed on the support frame. The push rod is connected to the cylinder. The second plug mounting bracket is connected to the push rod. The cylinder can drive the push rod to move along the first direction to drive the second plug to be inserted into the first plug.

[0024] As an alternative embodiment, a valve mounting seat is provided on the support frame, a valve is provided on the valve mounting seat, the second hose is connected to the valve, the valve includes a sliding switch, the sliding switch can control the opening and closing of the valve, a dial is provided on the sliding switch, and a trigger is further provided on the push rod. When the push rod drives the second plug to be inserted into the first plug, the trigger pushes the dial to move along the first direction to open the sliding switch.

[0025] As an alternative embodiment, the dial is connected with a reset member, and the reset member can apply a reset force to the sliding switch to close the sliding switch.

[0026] As an alternative embodiment, a sealing ring is provided on the insertion surface inside the second plug. When the second plug does not start to move in the first direction, the distance between the end surface of the insertion end of the first plug and the side of the sealing ring away from the insertion end of the first plug is less than the distance between the contact point of the trigger and the dial.

[0027] As an alternative embodiment, a mounting rod is provided on the valve mounting seat, the reset member is a spring, and the reset member is sleeved on the mounting rod so that the reset member can be compressed along the first direction on the mounting rod.

[0028] As an alternative embodiment, the reset member and the mounting rod are correspondingly arranged at a position close to the contact of the trigger and the dial.

[0029] As an alternative embodiment, the pipeline connection structure further includes a spiral hose. One end of the spiral hose is connected to the second plug, and the other end is connected to the connection port of the second hose. The spiral hose can freely expand and contract to adjust the length.

[0030] Compared with the prior art, the beneficial effects of the present application are:

[0031] The pipe connection structure provided by the embodiment of the present application includes a bracket assembly, a plug assembly, and a floating connection assembly. The plug assembly is connected between the first hose and the second hose to connect the first hose and the second hose. The plug assembly and the bracket assembly are floatingly connected through the floating connection assembly, so that when the position of the plug assembly is offset, the floating connection assembly can reset the plug assembly. When the first hose and the second hose are butted, the floating connection assembly allows the plug assembly to freely offset within a certain range, so as to adapt to the slight position differences between different hoses, reduce connection problems caused by installation errors or hose deformation, and complete the pipeline connection without precisely aligning the pipe orifices. The plug joint assembly can float relative to the bracket assembly to adjust the docking position, is not easy to cause the phenomenon of pressing or skewing at the pipeline joint, reduces the possibility of pipeline damage, and the floating connection assembly allows the plug joint assembly to automatically reset after the position is offset, ensuring that even under external forces or environmental changes, the plug assembly can still maintain a stable connection state and ensure the tightness of the pipeline connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0033] Figure 1 A schematic structural diagram (including a negative pressure assembly) of the pipe connection structure disclosed in the embodiment of the present application;

[0034] Figure 2 Another schematic structural diagram of the pipe connection structure disclosed in the embodiment of the present application;

[0035] Figure 3 For Figure 1 The cross-sectional view taken along line A-A in

[0036] Figure 4 A schematic structural diagram of the second floating connection unit disclosed in the embodiment of the present application;

[0037] Figure 5 A schematic structural diagram of the first plug disclosed in the embodiment of the present application;

[0038] Figure 6 A schematic structural diagram of the driving member disclosed in the embodiment of the present application;

[0039] Figure 7 For Figure 1 The cross-sectional view taken along line B-B in

[0040] Description of the reference numerals:

[0041] 100 - Pipe connection structure; 1 - Bracket assembly; 11 - First plug mounting bracket; 12 - Second plug mounting bracket; 12a - Third mounting hole; 12b - Third groove; 13 - Support frame; 131 - Valve mounting seat; 1312 - Mounting rod; 2 - Plug assembly; 21 - First plug; 21a - First convex part; 22 - Second plug; 22a - Second convex part; 22b - Ring groove; 221 - Sealing ring; 23 - Stopper; 23a - First groove; 3 - Floating connection assembly; 31 - First floating connection unit; 311 - Floating connection seat; 311a - First surface; 311b - Second surface; 311c - First mounting hole; 311d - Second groove; 312 - First elastic member; 32 - Second floating connection unit; 321 - First mounting member; 322 - Second elastic member; 323 - Second mounting member; 4 - Driving member; 41 - Cylinder; 42 - Push rod; 421 - Trigger member; 5 - Spiral hose; 6 - First hose; 7 - Second hose; 71 - Valve; 711 - Slide switch; 712 - Dial block; 7121 - Reset member; X - First direction; N - Axis. Detailed implementation manners

[0042] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0043] In the present application, the orientation or positional relationship indicated by terms such as "upper", "bottom", "inner", "outer", "horizontal", etc. is based on the orientation or positional relationship shown in the accompanying drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit that the indicated device, element or component must have a specific orientation, or be constructed and operated in a specific orientation.

[0044] Moreover, in addition to being able to represent the orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present application can be understood according to specific circumstances.

[0045] In addition, the terms "installed", "set up", "equipped with", "connected", and "linked" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0046] In addition, terms such as "first", "second", "third", etc. are mainly used to distinguish different devices, components, or parts (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, components, or parts. Unless otherwise specified, the meaning of "a plurality" is two or more.

[0047] The field of lithium battery manufacturing equipment is an important part of the new energy industry, which covers the entire production process of lithium-ion batteries from raw material processing to finished battery assembly. In this process, there are multiple key process links including stirring, coating, rolling, slitting, winding, assembly, formation, cleaning, drying, etc. Each link has extremely high requirements for the accuracy, efficiency, and automation of the equipment. With the rapid development of the lithium battery industry, higher standards are put forward for the performance and reliability of manufacturing equipment, prompting the industry to continuously carry out technological innovation and process optimization. The formation process is one of the key steps in lithium battery manufacturing. During the formation process, the battery needs to be in contact with the negative pressure component. Usually, the negative pressure component is equipped with a hose, and it is necessary to connect the equipment to the negative pressure component through the hose on the air extraction device to extract air from the negative pressure component to ensure a stable negative pressure environment for the battery and promote the uniform infiltration of the electrolyte. Therefore, the negative pressure component will come into contact with the electrolyte, and components such as lithium salts and organic solvents that may remain in the electrolyte need to be cleaned. During the cleaning process, it is also necessary to connect the cleaning device to the negative pressure component through the connecting hose on the cleaning device to introduce the cleaning liquid to clean the negative pressure component. After cleaning, the negative pressure component needs to be dried, and it may also be necessary to connect the connecting hose of the drying device to the connecting hose on the negative pressure component to convey gas to dry the negative pressure component.

[0048] In the above process, the pipeline is a key component for material transportation, gas transmission, and environmental control. Traditional pipeline connection methods mostly use rigid connections, such as docking by means of nozzle pressing, and the nozzles are all fixed with screws. Although this method ensures the firmness and tightness of the connection to a certain extent, it also has obvious disadvantages. Rigid connection has extremely high requirements for installation accuracy. Even a slight deviation may cause deformation such as the pipe head being pressed and distorted, affecting the tightness and stability of the pipeline connection.

[0049] To solve the above problems, the applicant further improved the pipeline connection structure and designed asFigure 1 The structure shown realizes the flexible connection of the pipeline. Specifically, the pipelines are connected by using a plug assembly, and the plug assembly is floatingly connected with the bracket assembly through a floating connection assembly.

[0050] Based on this, an embodiment of the present application discloses a pipeline connection structure, in which the plug assembly and the bracket assembly are floatingly connected via a floating connection assembly, allowing the plug assembly to freely shift within a certain range, reducing connection problems caused by installation errors or hose deformation. After the position of the plug assembly shifts, the floating connection assembly can reset the plug assembly, thereby ensuring the tightness of the pipeline connection.

[0051] The technical solution of the present application will be further described below in conjunction with embodiments and drawings.

[0052] See also Figure 1 , Figure 1 1 is a schematic diagram of a structure of a pipe connection structure 100 disclosed in an embodiment of the present application (including a negative pressure component). The embodiment of the present application discloses a pipe connection structure 100, which includes a bracket assembly 1, a plug assembly 2 and a floating connection assembly 3. The plug assembly 2 is connected between a first hose 6 and a second hose 7 to connect the first hose 6 and the second hose 7. The plug assembly 2 and the bracket assembly 1 are floatingly connected through the floating connection assembly 3, so that when the position of the plug assembly 2 is offset, the floating connection assembly 3 can reset the plug assembly 2.

[0053] In this way, when the first hose 6 and the second hose 7 are docked, the floating connection assembly 3 allows the plug assembly 2 to freely deviate within a certain range, thereby adapting to the slight position differences between different hoses, reducing connection problems caused by installation errors or hose deformation, and completing pipeline docking without the need to accurately match the pipe openings. The plug connector assembly can float relative to the bracket assembly 1 to adjust the docking position, which is not easy to cause pressure bias and distortion at the pipeline joint, reducing the possibility of pipeline damage, and the floating connection assembly 3 allows the plug assembly 2 to automatically reset after the position is offset, ensuring that the plug assembly 2 can maintain a stable connection state even under external forces or environmental changes, ensuring the tightness of the pipeline connection.

[0054] See also Figure 1 and Figure 2 , Figure 2Another schematic diagram of the pipeline connection structure 100 disclosed in the embodiments of the present application. As an alternative implementation, the plug assembly 2 includes a first plug 21 and a second plug 22. The first plug 21 is a male plug, and the second plug 22 is a female plug. The first plug 21 is connected to the first hose 6, and the second plug 22 is connected to the second hose 7. The first plug 21 can be plugged and matched with the second plug 22 to connect the first hose 6 and the second hose 7. The bracket assembly 1 includes a first plug mounting bracket 11, and the floating connection assembly 3 includes a first floating connection unit 31. The first plug 21 and the first plug mounting bracket 11 are floatingly connected through the first floating connection unit 31.

[0055] The first hose 6 and the second hose 7 can be connected by plugging the first plug 21 and the second plug 22. On the one hand, it reduces the wear on the pipeline connection parts of the first hose 6 and the second hose 7 when the plug assembly 2 is docked with the hoses. In addition, the first plug 21 and the first plug mounting bracket 11 are floatingly connected through the first floating connection unit 31. When there is a positional deviation between the first plug 21 and the second plug 22, the first plug 21 can freely offset within a certain range on the first plug mounting bracket 11 to achieve the docking of the first plug 21 and the second plug 22. Moreover, after the deviation occurs, the first floating connection unit 31 can reset the first plug 21 to its original position, ensuring the stability of the pipeline connection. In this way, the accuracy requirement for aligning the plugs is reduced, so that when connecting the first hose 6 and the second hose 7, even if there is a slight positional deviation, the position of the first plug 21 can be automatically adjusted by the first floating connection unit 31, reducing the connection difficulty and the required time.

[0056] It should be noted that there are various plugging methods for the above first plug 21 and second plug 22. In the first possible implementation, the first plug 21 or the second plug 22 can be manually plugged, which is convenient to operate and saves costs. Or, in the second possible implementation, the driving member 4 can drive the first plug 21 or the second plug 22 to move to achieve plugging, which saves manpower, has high efficiency, and can quickly respond to achieve high-precision control. This embodiment does not limit this.

[0057] Please refer to Figure 3 , Figure 3 For Figure 1Cross-sectional view taken along line A-A. In some embodiments, the first floating connection unit 31 includes a floating connection seat 311 and a first elastic member 312. The floating connection seat 311 is fixedly installed on the first plug mounting bracket 11. The floating connection seat 311 is connected to the first plug 21 through a spherical pair. The first elastic member 312 is used to apply a pressing force to the first plug 21 to press the first plug 21 and the floating connection seat 311 together. When the first plug 21 undergoes a radial offset, the first plug 21 is reset under the action of the spherical pair. When the first plug 21 is not plugged into the second plug 22, the first plug 21 can be tightly connected to the floating connection seat 311 through the spherical pair cooperation under the action of the first elastic member 312. When the first plug 21 is plugged into the second plug, the first plug 21 undergoes a relative offset relative to the floating connection seat 311 to align the insertion port and plug the first plug 21 into the second plug 22. After the first plug 21 is fully inserted and without any other external force, the first elastic member 312 applies a pressing force to the first plug 21 to press the first plug 21 and the floating connection seat 311 together, and the first plug 21 is reset on the floating connection seat 311 through the spherical pair cooperation.

[0058] In this way, when the first plug 21 is offset, it can be relatively tightly connected to the floating connection seat 311 through spherical cooperation. This design helps to maintain the integrity of the structural connection. Especially when the negative pressure component is working, stable connection is crucial for preventing leakage. The spherical pair cooperation provides a flexible connection method. The spherical pair has three-dimensional rotational freedom, enabling the first plug 21 to adaptively and finely adjust the docking position at various angles and cooperate with the first elastic member 312. After the position offset occurs during docking, the first plug 21 can be self-adaptively reset, which reduces the technical difficulty of installation and maintenance and improves work efficiency.

[0059] It should be noted that the first elastic member 312 can be any possible elastic member that can provide elastic force, such as a spring and a bellows. This embodiment does not limit this.

[0060] Combined with Figure 3, optionally, the floating connector seat 311 includes a first surface 311a and a second surface 311b arranged back to back. A first mounting hole 311c penetrating through the first surface 311a and the second surface 311b is formed in the floating connector seat 311. The spherical pair includes a first spherical surface arranged on the first surface 311a and a second spherical surface arranged on the first plug 21. The center of the first spherical surface is located on the axis N of the first mounting hole 311c, and the center of the second spherical surface is located on the axis N of the first plug 21. The first spherical surface is one of a convex spherical surface and a concave spherical surface, and the second spherical surface is the other of the convex spherical surface and the concave spherical surface. Through the arrangement of the first mounting hole 311c, the first plug 21 is inserted through the floating connector seat 311, providing installation and movement space for the first plug 21. The center of the first spherical surface corresponds to the axis N of the first mounting hole 311c, ensuring the symmetry of the spherical fit. When the first plug 21 is not inserted into the second plug 22, the first plug 21 can maintain a horizontal state along the first direction X. After insertion, the position of the first plug 21 deviates in the first mounting hole 311c. Under the action of the first elastic member 312, the first plug 21 can return to a horizontal state along the first direction X again, realizing precise positioning of the position of the first plug 21 and ensuring the accuracy of the connection between the first plug 21 and the floating connector seat 311.

[0061] Specifically, the first plug 21 is provided with a first protrusion 21a on the side close to the first surface 311a. Under the action of the first elastic member 312, the first protrusion 21a can abut against the floating connector seat 311. The abutting surface between the first protrusion 21a and the floating connector seat 311 is the second spherical surface. The first spherical surface is a concave spherical surface, and the second spherical surface is a convex spherical surface. The convex spherical surface can be better embedded in the concave spherical surface, thereby improving the connection stability. When the first plug 21 is subjected to the force of the elastic member along the first direction X, the concave spherical surface will be subjected to the pressure of the convex spherical surface. The concave spherical surface can evenly disperse this pressure. In addition, since the first spherical surface is a concave spherical surface, the mating spherical pair is closer to the first elastic member 312, and the cooperative effect of the first elastic member 312 and the spherical pair is better. When the insertion angle of the first plug 21 deviates, the first elastic member 312 applies a force along the first direction X to the first plug 21, and the spherical pair can respond and cooperate with it faster, enabling the first plug 21 to quickly return to its original position, and the connection between the first plug 21 and the floating connector seat 311 is tighter.

[0062] Combined with Figure 3, in some possible embodiments, the plug assembly 2 further includes a stopper 23. The stopper 23 is connected to the first plug 21 and is disposed opposite to the second surface 311b. The first elastic member 312 is a spring. One end of the first elastic member 312 abuts against the stopper 23, and the other end abuts against the second surface 311b of the floating connection base 311. The provision of the stopper 23 enables the first elastic member 312 to abut between the stopper 23 and the floating connection base 311 in the first direction X, providing a force in the first direction X to the first plug 21 to press the first plug 21 and the floating connection base 311 tightly. The direction of this force is parallel to the axis N direction of the first plug 21. Since the center of the first spherical surface is located on the axis N of the first mounting hole 311c and the center of the second spherical surface is located on the axis N of the first plug 21, when there is no other external force, the first plug 21 can be maintained to be connected to the floating connection base 311 in the first direction X. When the first plug 21 is angularly deflected after insertion, the first plug 21 can quickly return to the installation state along the first direction X under the action of the first elastic member 312, ensuring the accurate axial positioning of the first plug 21, improving the connection reliability, and reducing the adjustment time and technical difficulty during the installation of the first plug 21.

[0063] It can be understood that the stopper 23 can be fixedly connected to the first plug 21 or can be threadedly connected to the first plug 21. In the first possible implementation manner, the stopper 23 is directly welded to the first plug 21, which can achieve a high connection strength. Under the action of the first elastic member 312, the stopper 23 is not prone to displacement, and the maintenance cost is low; in the second possible implementation manner, the first plug 21 is provided with a thread on the outside, the stopper 23 is a nut, and the first plug 21 is in threaded fit with the threaded hole of the nut. The nut is screwed tightly with the first plug 21. The operation is simple and fast, and it can be disassembled and reconnected multiple times, which is convenient for maintenance and replacement. This embodiment does not make any limitation in this regard.

[0064] Combined with Figure 3 , as an alternative embodiment, the stopper 23 is provided with a first groove 23a, and the second surface 311b is provided with a second groove 311d. One end of the first elastic member 312 abuts against the bottom of the first groove 23a, and the other end abuts against the bottom of the second groove 311d. In this way, the connection between the first elastic member 312 and the stopper 23 and the floating connection base 311 is tighter, the position of the first elastic member 312 can be more precisely restricted, the first elastic member 312 is not prone to displacement, and the connection stability of the structure is ensured.

[0065] It can be understood that the first elastic member 312 can be multiple and surround the outer circumference of the first plug 21 for one week, or can be one and sleeved on the first plug 21, both of which can apply a uniform force in the first direction X to the first plug 21. This embodiment does not make any limitation in this regard.

[0066] In combination Figures 1 to 3 , in some optional embodiments, the floating connection assembly 3 further includes a second floating connection unit 32, and the bracket assembly 1 further includes a second plug mounting bracket 12. The second plug 22 and the second plug mounting bracket 12 are floatingly connected through the second floating connection unit 32. The connection between the second plug 22 and the second plug mounting bracket 12 also achieves a floating effect. When there is a positional deviation between the first plug 21 and the second plug 22, the first plug 21 can freely offset within a certain range on the first plug mounting bracket 11 to achieve the docking of the first plug 21 and the second plug 22. Moreover, after the offset occurs, the second floating connection unit 32 can reset the second plug 22 to its original position, ensuring the stability of the pipeline connection. In this way, the first floating connection unit 31 and the second floating connection unit 32 cooperate with each other, reducing the precision requirements for aligning the plugs, so that when there is a positional deviation in connecting the first hose 6 and the second hose 7, the docking positions of the first plug 21 and the second plug 22 can also be automatically adjusted through the first floating connection unit 31 and the second floating connection unit 32, reducing the connection difficulty and the required time.

[0067] Referring to Figure 3 and Figure 4 , Figure 4 FIG. is a schematic structural diagram of the second floating connection unit 32 disclosed in the embodiment of the present application. As an optional embodiment, the second floating connection unit 32 includes a first mounting member 321, a second elastic member 322, and a second mounting member 323. The first mounting member 321 is fixedly connected to the second plug mounting bracket 12. A second mounting hole (not marked in the figure) is provided in the first mounting member 321. The second mounting member 323 is disposed in the second mounting hole and is radially connected to the first mounting member 321 through the second elastic member 322. The second plug 22 is connected to the second mounting member 323. The second elastic member 322 is configured to provide a radial restoring force for the second plug 22 when the second plug 22 moves radially relative to the first mounting member 321.

[0068] In this way, the second floating connection unit 32 allows the second plug 22 to float radially relative to the second plug mounting bracket 12. When the first plug 21 and the second plug 22 are docked, the second plug 22 can automatically adjust its position radially, and after the docking is completed, without other external forces, the second elastic member 322 provides a radial force for the second plug 22 to make the second plug 22 return to its original position relative to the first mounting member 321, ensuring the stability of the pipeline connection.

[0069] It should be noted that the first elastic member 312 can be any possible elastic member that can provide elastic force, such as a spring, a rubber ring, and a corrugated pipe. The present embodiment does not limit this.

[0070] Combination Figure 3 As an optional embodiment, a third mounting hole 12a is provided on the second plug mounting bracket 12, and one end of the second plug 22 away from the first plug 21 passes through the third mounting hole 12a to connect with the second hose 7, and a radial gap is provided between the third mounting hole 12a and the second plug 22. In this way, the second plug 22 is inserted into the second plug mounting bracket 12. On the one hand, when the first plug 21 and the second plug 22 are plugged in, when the second plug 22 moves radially relative to the second plug mounting bracket 12, the third mounting hole 12a provides a moving space for the second plug 22, thereby enhancing the movement flexibility of the second plug 22. On the other hand, the radial movement range of the second plug 22 is limited, thereby preventing the second floating connection unit 32 and the hose from being damaged due to excessive movement of the second plug 22, thereby ensuring the stability and safety of the structure, and preventing air and liquid leakage from occurring in the pipeline.

[0071] Optionally, the second elastic member 322 is a spring sheet, one end of which is fixedly connected to the first mounting member 321, and the other end of which is fixedly connected to the second mounting member 323. As an elastic element, the spring sheet can provide radial restoring force within a certain range. When the second plug 22 is radially displaced during docking, the spring sheet can compensate for the displacement. The spring sheet can provide continuous pressure at the connection part to maintain the stability of the connection. The use of the spring sheet reduces the direct stress of the hard connection on the pipeline, thereby reducing the wear and fatigue of the connection part and extending the service life of the pipeline connection structure 100. The spring sheet has a simple structure and is easier to install and maintain, and can automatically adjust to a certain extent to adapt to slight changes in the pipeline.

[0072] Combination Figure 4 In some embodiments, the second mounting member 323 is an annular structure, and the straight line connecting the two ends of the second elastic member 322 does not pass through the center of the second mounting member 323. When the first plug 21 and the second plug 22 are plugged in, the second plug 22 may be subjected to a torsional force along the circumference of the second mounting member 323, so that the second elastic member 322 can better share this force, and is not easily damaged. When not subjected to other external forces, it can also be more easily restored to its original state, thereby improving the adaptability and durability of the connection.

[0073] As an alternative embodiment, the second elastic member 322 is an arc-shaped elastic piece. There are multiple arc-shaped elastic pieces, and the convex arc surfaces of the multiple arc-shaped elastic pieces all face the first mounting member 321. The arc-shaped elastic pieces are more compact in space, and the arc-shaped design can also provide better elastic characteristics, enabling the elastic piece to more effectively return to its original state when subjected to a radial force, thereby improving the adaptability and durability of the connection. The arc-shaped elastic piece can provide a more uniform radial supporting force at the connection part, which helps to maintain the stability of the connection and reduce the problems of uneven connection or stress concentration caused by the uneven shape of the elastic piece. In addition, it also makes the movement of the second plug 22 relative to the first mounting member 321 more flexible.

[0074] Optionally, the arc-shaped elastic pieces are arranged at equal intervals along the circumferential direction of the second mounting member 323 to ensure that the second elastic member 322 is evenly distributed throughout the connection area. On the one hand, this helps to provide a more uniform radial supporting force, thereby improving the overall stability of the connection. On the other hand, the equal-interval arrangement also ensures the symmetry of the connection structure, which may help to reduce the problem of damage to the second elastic member 322 caused by stress concentration due to structural asymmetry.

[0075] Please refer to Figures 3 to 5 , Figure 5 which is a schematic structural diagram of the first plug 21 disclosed in the embodiment of the present application. As an alternative embodiment, a ring groove 22b is provided in the circumferential direction of the second plug 22, and the second mounting member 323 is snap-fitted into the ring groove 22b to axially fix the second plug 22 and the second mounting member 323 along the axis of the second plug 22. A second protrusion 22a is provided on the second plug 22. A third groove 12b is provided on the first end surface of the second plug mounting bracket 12, and the second mounting hole penetrates through the bottom of the third groove 12b. One side of the second protrusion 22a abuts against the second floating connection unit 32, and the other side abuts against the bottom of the third groove 12b. This ensures that the second plug 22 can only move radially relative to the first mounting member 321 and will not fall off axially, ensuring the stability of the connection.

[0076] Combined with Figure 2 and Figure 6 , Figure 6Schematic diagram of the structure of the driving member 4 disclosed in the embodiments of the present application. As an alternative implementation, the pipeline connection structure 100 further includes a driving member 4. The driving member 4 is connected to the second plug mounting bracket 12 to drive the second plug 22 to move along the first direction X, so as to realize the insertion of the first plug 21 and the second plug 22. Through the precise control of the driving member 4, the position deviation that may be introduced by manual operation is avoided, ensuring the accuracy and reliability of the hose connection. The automated connection process significantly reduces the need for manual operation, speeds up the pipeline connection speed, improves the working efficiency of the negative pressure component process flow, and reduces the production cost. In addition, the use of the driving member 4 reduces the dependence on the operator's skills, reduces the connection errors caused by human factors, and ensures the consistency and quality of each connection.

[0077] It can be understood that there are various driving methods for driving the second plug 22 to move. In the first possible implementation, the second plug 22 can be driven by a motor to move along the first direction X, which has higher precision. In the second possible implementation, it can be the cylinder 41 that drives the second plug 22 to move along the first direction X, with a simple structure and easy operation. This embodiment does not make any limitations in this regard.

[0078] It should be noted that the driving member 4 can be one or more than one, and this embodiment does not make any limitations in this regard.

[0079] Combined with Figure 2 and Figure 6 , in some alternative embodiments, the driving member 4 includes a cylinder 41 and a push rod 42. The bracket assembly 1 further includes a support frame 13. The cylinder 41 is installed on the support frame 13, the push rod 42 is connected to the cylinder 41, and the second plug mounting bracket 12 is connected to the push rod 42. The cylinder 41 can drive the push rod 42 to move along the first direction X to drive the second plug 22 to be inserted into the first plug 21. The structure of the cylinder 41 is relatively simple, easy to install and maintain, has high safety, ensures the smoothness of the insertion process, reduces the vibration and impact during the connection process, and further enhances the stability and service life of the connection.

[0080] Optionally, combined with Figure 2 and Figure 6, a valve mounting seat 131 is provided on the support frame 13, a valve 71 is provided on the valve mounting seat 131, the second hose 7 is connected to the valve 71, the valve 71 includes a sliding switch 711, and the sliding switch 711 can control the opening and closing of the valve 71. This valve 71 is a manual slide valve, which adjusts the flow rate and flow direction of the fluid by changing the opening size between the valve core and the valve seat. In the closed state, the valve core fits tightly with the valve seat to prevent the fluid from passing through; in the open state, the valve core is separated from the valve seat to form a flow channel to allow the fluid to flow. A dial block is provided on the sliding switch 711, and a trigger member 421 is also provided on the push rod 42. When the push rod 42 drives the second plug 22 to be inserted into the first plug 21, the trigger member 421 pushes the dial block to move along the first direction X so that the sliding switch 711 drives the valve core to move, causing an opening to appear between the valve core and the valve seat to open the valve 71.

[0081] In this way, on the one hand, without additional manual intervention, the response speed and control accuracy of the system are improved. On the other hand, operation errors caused by manual operation are avoided, the intervention of operators is reduced, the operation risk is lowered, and the safety of the operation is improved. The automatic opening of the valve 71 is synchronized with the insertion movement of the second plug 22, ensuring the immediacy of fluid transmission, avoiding unnecessary waiting time, significantly improving the efficiency and coherence of the production process, not only enhancing the automation level and control accuracy of the system, but also optimizing the spatial layout, and enhancing the safety and reliability of the system.

[0082] Combined with Figure 6 and Figure 7 , Figure 7 is Figure 1 the cross-sectional view taken along line B-B in

[0083] Combined with Figure 3 and Figure 6, As an alternative implementation, a sealing ring 221 is provided on the internal plugging surface of the second plug 22. When the second plug 22 has not started to move along the first direction X, the distance between the end face of the plugging end of the first plug 21 and the side of the sealing ring 221 away from the plugging end of the first plug 21 is less than the distance between the contact point of the trigger 421 and the slider 712. In this way, when the driving member 4 drives the second plug mounting bracket 12 to move along the first direction X, after the position of the plugging port of the first plug 21 exceeds the sealing ring 221, the trigger 421 can touch the slider 712, thereby opening the valve 71 to achieve pipeline connection. The design of the sealing ring 221 ensures the tight fit between the first plug 21 and the second plug 22, effectively preventing fluid leakage, especially in a negative pressure or high-pressure environment, significantly improving the connection tightness and reliability. By accurately calculating the distance between the sealing ring 221 and the contact point of the trigger 421 and the slider 712, it is ensured that the valve 71 remains closed before the second plug 22 starts to move until precise alignment and plugging are completed, achieving the combination of automatic control and sealing safety.

[0084] Combined Figure 6 , As an alternative implementation, a mounting rod 1312 is provided on the valve mounting seat 131. The reset member 7121 is a spring, and the reset member 7121 is sleeved on the mounting rod 1312 so that the reset member 7121 can be compressed along the first direction X on the mounting rod 1312. To prevent the reset member 7121 from being compressed and deformed in other directions when the slider 712 moves along the first direction X, the compression direction of the reset member 7121 is effectively restricted, reducing the possibility of damage to the reset member 7121.

[0085] Combined Figure 7 , Optionally, there are two reset members 7121 and mounting rods 1312, which can avoid stronger hard impacts, ensure the stability of the valve 71 during the opening process, reduce problems such as damage to the valve 71 caused by impacts, and improve the stability of the overall structure. When the plugs are separated, the reset member 7121 can also provide a stronger reset force for the slider 712, helping the slider 712 to return to its original position faster, improving work efficiency.

[0086] Combined Figure 6 , In some possible implementations, the reset member 7121 and the mounting rod 1312 are correspondingly arranged near the contact position of the trigger 421 and the slider 712, which can more directly apply a force in the opposite direction to the pressure point of the slider, and the effect of slowing down the movement impact is more obvious.

[0087] Combined Figure 6, As an alternative embodiment, the pipeline connection structure 100 further includes a spiral hose 5. One end of the spiral hose 5 is connected to the second plug 22, and the other end is connected to the connection port of the second hose 7. The spiral hose 5 can freely stretch and adjust its length. In this way, during the movement of the second plug mounting bracket 12, the length of the spiral hose 5 can be freely adjusted to adapt to different situations, improving the flexibility and adaptability of the system.

[0088] Combined with Figures 2 to 6 , when the first plug 21 and the second plug 22 are not docked, the air cylinder 41 pushes the push rod 42 to move along the first direction X. When the positions of the first plug 21 and the second plug 22 do not correspond and there are slight position differences, the first plug 21 can adjust the docking angle according to the docking position in spherical pair cooperation with the floating connection seat 311, and the second plug 22 can radially adjust the docking position according to the docking position through the second elastic member 322. In this way, the first plug 21 can be aligned with the second plug 22, and the first plug 21 is inserted into the second plug 22. At this time, under the action of the first elastic member 312 and the second elastic member 322, the first plug 21 and the second plug 22 can be reset. When the position of the insertion port of the first plug 21 completely exceeds the sealing ring 221, the trigger 421 touches the dial block 712 and continues to drive the dial block 712 to move along the first direction X to open the valve 71. At this time, the first hose 6 and the second hose 7 are connected, realizing the flexible docking between pipelines.

[0089] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A pipeline connection structure for connecting a first hose and a second hose of a negative pressure component, characterized in that, The described pipe connection structure includes: a bracket assembly; a plug assembly, which is connected between the first hose and the second hose to communicate the first hose and the second hose; a floating connection assembly, through which the plug assembly and the bracket assembly are floatingly connected, so that when the position of the plug assembly is offset, the floating connection assembly can reset the plug assembly.

2. The pipeline connection structure according to claim 1, wherein, The plug assembly includes a first plug and a second plug. The first plug communicates with the first hose, and the second plug communicates with the second hose. The first plug can be inserted and matched with the second plug to communicate the first hose and the second hose. The bracket assembly includes a first plug mounting bracket, and the floating connection assembly includes a first floating connection unit. The first plug and the first plug mounting bracket are floatingly connected through the first floating connection unit.

3. The pipe connection structure according to claim 2, characterized in that, The first floating connection unit includes a floating connection seat and a first elastic member. The floating connection seat is fixedly installed on the first plug mounting bracket. The floating connection seat and the first plug are connected through a spherical pair. The first elastic member is used to apply a pressing force to the first plug to press the first plug and the floating connection seat together, so that when the first plug has a radial offset, the first plug can be reset under the action of the spherical pair.

4. The pipe connection structure according to claim 3, characterized in that, The floating connection seat includes a first surface and a second surface arranged back to back. The floating connection seat is provided with a first mounting hole penetrating through the first surface and the second surface. The spherical pair includes a first spherical surface arranged on the first surface and a second spherical surface arranged on the first plug. The center of the first spherical surface is located on the axis of the first mounting hole, and the center of the second spherical surface is located on the axis of the first plug. The first spherical surface is one of a convex spherical surface and a concave spherical surface, and the second spherical surface is the other of a convex spherical surface and a concave spherical surface.

5. The pipeline connection structure according to claim 4, characterized in that, The plug assembly further includes a stopper. The stopper is connected to the first plug and is arranged opposite to the second surface. The first elastic member is a spring. One end of the first elastic member abuts against the stopper, and the other end abuts against the second surface of the floating connection seat.

6. The pipeline connection structure according to claim 5, characterized in that The stopper is provided with a first groove, and the second surface is provided with a second groove. One end of the first elastic member abuts against the bottom of the first groove, and the other end abuts against the bottom of the second groove.

7. The pipeline connection structure according to any one of claims 2-6, characterized in that, The floating connection assembly further includes a second floating connection unit. The bracket assembly further includes a second plug mounting bracket. The second plug and the second plug mounting bracket are floatingly connected through the second floating connection unit.

8. The pipeline connection structure according to claim 7, characterized in that, The second floating connection unit includes a first mounting member, a second elastic member, and a second mounting member. The first mounting member is fixedly connected to the second plug mounting bracket. A second mounting hole is provided in the first mounting member. The second mounting member is disposed in the second mounting hole and is radially connected to the first mounting member through the second elastic member. The second plug is connected to the second mounting member. The second elastic member is configured to provide a radial restoring force for the second plug when the second plug moves radially relative to the first mounting member.

9. The pipe connection structure according to claim 8, characterized in that, A third mounting hole is provided in the second plug mounting bracket. One end of the second plug away from the first plug passes through the third mounting hole to connect to the second hose. A radial gap is provided between the third mounting hole and the second plug.

10. The pipe connection structure according to claim 9, characterized in that, The second elastic member is a shrapnel. One end of the second elastic member is fixedly connected to the first mounting member, and the other end is fixedly connected to the second mounting member.

11. The pipe connection structure according to claim 10, wherein, The second mounting member is of an annular structure. The straight line where the two ends of the second elastic member are connected does not pass through the center of the second mounting member.

12. The pipeline connection structure according to claim 11, wherein, The second elastic member is an arc-shaped shrapnel. There are a plurality of arc-shaped shrapnels. The convex arc surfaces of the plurality of arc-shaped shrapnels all face the first mounting member.

13. The pipe connection structure according to claim 12, characterized in that, Each of the arc-shaped shrapnels is arranged at equal intervals along the circumferential direction of the second mounting member.

14. The pipeline connection structure according to claim 13, characterized in that, A ring groove is provided in the circumferential direction of the second plug. The second mounting member is clamped in the ring groove so that the second plug and the second mounting member are fixed along the axial direction of the second plug.

15. The pipe connection structure according to claim 14, wherein, The pipeline connection structure further includes a driving member. The driving member is connected to the second plug mounting bracket to drive the second plug to move in a first direction, so as to realize the insertion of the first plug and the second plug.

16. The pipeline connection structure according to claim 15, wherein, The driving member includes a cylinder and a push rod. The bracket assembly further includes a support frame. The cylinder is mounted on the support frame. The push rod is connected to the cylinder. The second plug mounting bracket is connected to the push rod. The cylinder can drive the push rod to move in the first direction to drive the second plug to be inserted into the first plug.

17. The pipe connection structure according to claim 16, characterized in that, A valve mounting seat is provided on the support frame. A valve is provided on the valve mounting seat. The second hose is connected to the valve. The valve includes a sliding switch. The sliding switch can control the opening and closing of the valve. A dial block is provided on the sliding switch. A trigger member is further provided on the push rod. When the push rod drives the second plug to be inserted into the first plug, the trigger member pushes the dial block to move in the first direction to open the sliding switch.

18. The pipeline connection structure according to claim 17, wherein, The dial block is connected with a reset member. The reset member can apply a reset force to the sliding switch to close the sliding switch.

19. The pipe connection structure according to claim 18, wherein, A sealing ring is provided on the insertion surface inside the second plug. When the second plug does not start to move in the first direction, the distance between the end surface of the insertion end of the first plug and the side of the sealing ring away from the insertion end of the first plug is less than the distance between the contact point of the trigger member and the dial block.

20. The pipeline connection structure according to claim 19, characterized in that, An installation rod is provided on the valve mounting seat, the reset member is a spring, and the reset member is sleeved on the installation rod so that the reset member can be compressed along the first direction on the installation rod.

21. The pipeline connection structure according to claim 20, wherein, The reset member and the installation rod are correspondingly arranged at a position close to the contact between the trigger member and the dial block.

22. The pipeline connection structure according to any one of claims 16-21, characterized in that, The pipeline connection structure further includes a spiral hose. One end of the spiral hose is connected to the second plug, and the other end is connected to the connection port of the second hose. The spiral hose can freely expand and contract to adjust its length.

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