Pipe docking apparatus

Abstract

The application discloses a pipeline butt joint device, when two pipelines are respectively inserted into the clamping cavities formed by the upper clamping devices and the lower clamping devices of two pipeline clamping devices, the clamping cavities are adjusted to be small, the upper clamping device and the corresponding lower clamping device clamp one pipeline, the distance between the two pipeline clamping devices is adjustable, the two pipeline clamping devices are close to each other after the pipeline clamping devices clamp the pipelines, the two pipelines are butt jointed, compared with the prior art, the pipeline butt joint device has the advantages of low construction difficulty, high efficiency, low cost, high construction safety performance and the like, after butt joint, the clamping cavities are adjusted to be large, the connection between the other ends of the upper clamping devices and the lower clamping devices is disconnected, the upper clamping devices are turned over, and the butt jointed pipelines can be conveniently taken out.

Description

Technical Field

[0001] This invention relates to the field of construction equipment technology, and in particular to a pipe connection device. Background Technology

[0002] Pipeline construction often involves splicing multiple shorter pipes into a longer one to meet specific needs. Conventional metal pipes are usually connected by welding or flanges, making the installation process relatively simple. However, in the construction of large composite material pipelines, to ensure the strength, rigidity, and airtightness of the connection, a socket connection is generally used. Simply put, this involves inserting a pipe with a spigot end into the socket of another pipe in one direction, and then sealing it to create a strong, closed system.

[0003] However, due to the large weight and length of large pipelines, difficulties may arise in the connection between pipelines during the splicing process, and the quality of pipeline connection may be difficult to guarantee. Summary of the Invention

[0004] The purpose of this invention is to provide a pipe connection device that is easy to construct, efficient, low-cost, and safe.

[0005] In a first aspect, the present invention provides a pipe connection device, comprising:

[0006] Support base;

[0007] Two pipe clamping devices are mounted on the support and arranged opposite to each other, and the distance between the two pipe clamping devices is adjustable;

[0008] The pipe clamping device includes a lower clamping device and an upper clamping device. The lower clamping device is disposed on the support base. One end of the upper clamping device is hinged to one end of the lower clamping device, and the other end of the upper clamping device is detachably connected to the other end of the lower clamping device.

[0009] The upper clamping device and the lower clamping device together form a clamping cavity for pipe insertion, and the size of the clamping cavity is adjustable.

[0010] In an optional embodiment, the lower clamping device includes a lower frame and a lower clamp, the lower frame being disposed on the support base and the lower clamp being disposed within the lower frame;

[0011] The upper clamping device includes an upper frame and an upper clamp. One end of the upper frame is hinged to one end of the lower frame, and the other end of the upper frame is detachably connected to the other end of the lower frame. The upper clamp is disposed inside the upper frame, and the upper clamp and the lower clamp together form the clamping cavity.

[0012] In an optional embodiment, the upper clamping device further includes a pressing mechanism, the upper clamp being disposed on the upper frame via the pressing mechanism, the pressing mechanism being used to move the upper clamp closer to or further away from the lower clamp.

[0013] In an optional embodiment, the clamping mechanism includes a clamping drive source and a linkage assembly. The clamping drive source is fixed to the upper frame and is connected to the upper clamp via the linkage assembly.

[0014] In an optional embodiment, the linkage assembly includes a force-applying rod, a connecting rod, and a power rod. The clamping drive source is connected to one end of the force-applying rod, and the other end of the force-applying rod is hinged to the upper frame. One end of the connecting rod is hinged to the middle of the force-applying rod, and the other end of the connecting rod is hinged to one end of the power rod. The other end of the power rod is connected to the upper clamp, and the middle of the power rod is movable relative to the upper frame.

[0015] In an optional embodiment, the clamping drive source is capable of outputting a linear driving force, and the linkage assembly further includes a transition rod, one end of which is hinged to the telescopic drive portion of the clamping drive source, and the other end of which is hinged to one end of the force-applying rod.

[0016] In an optional embodiment, the upper clamping device further includes a mounting plate, which is fixed to the upper frame, and the clamping mechanism is disposed on the mounting plate;

[0017] And / or,

[0018] The upper clamping device includes two clamping mechanisms, which are respectively connected to both ends of the upper clamp.

[0019] In an optional embodiment, both the upper clamp and the lower clamp include an arc tube, an arc plate, and a web plate. The two arc tubes are arranged opposite to each other, and the web plate is connected between the ends of the two arc tubes. The arc plate is connected between the two arc tubes.

[0020] In an optional embodiment, the arc plate includes a first arc plate and a second arc plate, the chord length of the first arc plate is greater than the chord length of the second arc plate, the first arc plate is connected between the two arc tubes near the end of the arc tubes, and the second arc plate is connected between the two arc tubes at the middle of the arc tubes.

[0021] And / or,

[0022] The friction arc plate is fixed between the inner arc surfaces of the two arc tubes, and the outer arc surface of the friction arc plate is fixed to the arc plate;

[0023] And / or,

[0024] A reinforcing rib is provided between the arc tube and the web.

[0025] In an optional embodiment, the pipe docking device further includes a lateral drive device for driving the two pipe clamping devices to move in opposite directions or towards each other.

[0026] And / or,

[0027] The pipe clamping device further includes a flipping drive device, which is used to drive the upper clamping device to flip when the other end of the upper clamping device is disconnected from the other end of the lower clamping device.

[0028] And / or,

[0029] The bottom of the support base is equipped with rollers via lifting legs.

[0030] The beneficial effects of the embodiments of the present invention include:

[0031] When using the pipe docking equipment of this embodiment to dock pipes, two pipes are respectively inserted into the clamping cavities formed by the upper and lower clamping devices of the two pipe clamping devices. By reducing the size of the clamping cavities, the upper and lower clamping devices can clamp a single pipe together. Since the distance between the two pipe clamping devices is adjustable, after the pipe clamping devices clamp the pipes, bringing the two pipe clamping devices closer together allows the two pipes to dock. Compared with the prior art, this method has lower construction difficulty, higher efficiency, lower cost, and higher construction safety. After docking, the clamping cavities are enlarged, and the connection between the other ends of the upper and lower clamping devices is disconnected. Then, the upper clamping device can be flipped over to easily remove the docked pipes. Attached Figure Description

[0032] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram showing the usage status of the pipe connection equipment in this embodiment;

[0034] Figure 2 This is a schematic diagram of the pipe connection equipment in this embodiment;

[0035] Figure 3 This is one of the schematic diagrams of the pipe clamping device in this embodiment;

[0036] Figure 4 This is the second schematic diagram of the pipe clamping device in this embodiment;

[0037] Figure 5 This is a schematic diagram of the combined structure of the clamping mechanism and the mounting plate in this embodiment;

[0038] Figure 6 This is a schematic diagram of the upper or lower clamp;

[0039] Figure 7 This is a schematic diagram of pipe connection.

[0040] Icons: 10-Support base; 11-Lifting leg; 12-Roller; 13-Slide rail; 14-Slider; 20-Upper clamping device; 21-Upper clamp; 210-Arc tube; 211-First arc plate; 212-Second arc plate; 213-Web plate; 214-Friction arc plate; 215-Reinforcing rib; 22-Upper frame; 23-Pressure clamping mechanism; 230-Pressure clamping drive source; 231-Transition rod; 232-Force application rod; 233-Connecting rod; 234-Power rod; 24-Mounting plate; 30-Lower clamping device; 31-Lower clamp; 32-Lower frame; 320-Side plate; 34-Clamping cavity; 40-Side drive device; 50-Tilting drive device. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0042] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0043] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0044] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0045] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0046] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0047] Traditional large-diameter pipe splicing techniques involve using cranes, gantry cranes, and other mechanical equipment to lift the pipes, then relying on manual pushing and prying to connect the two pipes. This requires a large number of workers and machinery, and demands a high degree of coordination between workers and equipment, resulting in high construction costs, significant difficulty, and low efficiency. Furthermore, during the splicing process, workers need to work with the machinery at the connection point to support and push the steel pipes back and forth; therefore, even slight carelessness (or a lack of coordination) can easily lead to serious damage, resulting in poor construction safety.

[0048] In summary, due to the large weight and length of large pipelines, difficulties may arise in the connection process between pipelines, and the quality of pipeline connection may be difficult to guarantee.

[0049] To improve upon the above-mentioned deficiencies, the inventors have provided the following embodiments after research. The following is in conjunction with the appendix... Figures 1 to 7 The following describes some embodiments of the present invention in detail. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0050] This invention discloses a pipe connection device, including a support base 10 and a pipe clamping device. The support base 10 mainly serves to support the pipe clamping device. Two pipe clamping devices are arranged opposite each other on the support base 10, and the distance between the two pipe clamping devices is adjustable. The pipe clamping device includes a lower clamping device 30 and an upper clamping device 20. The lower clamping device 30 is disposed on the support base 10. One end of the upper clamping device 20 is hinged to one end of the lower clamping device 30, and the other end of the upper clamping device 20 is detachably connected to the other end of the lower clamping device 30. The upper clamping device 20 and the lower clamping device 30 together form a clamping cavity 34 for pipe insertion, and the size of the clamping cavity 34 is adjustable.

[0051] In this way, when connecting pipes, the two pipes are respectively inserted into the clamping cavity 34 formed by the upper clamping device 20 and the lower clamping device 30 of the two pipe clamping devices. Then, by reducing the size of the clamping cavity 34, the upper clamping device 20 and the corresponding lower clamping device 30 can clamp a pipe together. Since the distance between the two pipe clamping devices is adjustable, after the pipe clamping devices clamp the pipe, the two pipe clamping devices can be brought closer together to connect the two pipes. Compared with the existing technology, the construction difficulty is low, the efficiency is high, the cost is low, and the construction safety performance is high. After the connection is completed, the clamping cavity 34 is enlarged, and the connection between the other end of the upper clamping device 20 and the lower clamping device 30 is disconnected. Then, the upper clamping device 20 can be flipped over to easily remove the connected pipe.

[0052] In this embodiment, the support base 10 is made of square tube welded together, which can reduce the overall weight and cost while ensuring sufficient load-bearing capacity, and facilitate the overall handling or movement of the pipeline docking equipment.

[0053] Multiple lifting rollers 12 are provided at the bottom of the support base 10, which can easily adjust the height of the support base 10 so that the pipe can be easily inserted into the clamping cavity 34 between the upper clamp 21 and the lower clamp 31.

[0054] Specifically, multiple lifting legs 11 are provided on the support base 10. The lifting leg 11 can be a pneumatic cylinder or a hydraulic cylinder. Its cylinder body is fixed to the support base 10, and its piston rod is connected to a roller 12. That is, the lifting leg 11 and the roller 12 are connected in a one-to-one correspondence, so that the height of the support base 10 can be adjusted by extending and retracting the piston rod.

[0055] The lower clamping device 30 of one pipe clamping device is fixedly connected to the support base 10, while the two ends of the lower clamping device 30 of the other pipe clamping device are slidably mounted on the support base 10 through sliding pairs. In this way, the distance between the two pipe clamping devices can be changed by sliding the pipe clamping devices relative to the support base 10, and the position of one pipe can be fixed during the pipe docking process to ensure the docking quality.

[0056] The sliding pair can be a slide rail 13 and slider 14 structure, that is, the sliding pair includes a slide rail 13 and a slider 14 that are slidably connected. The slide rail 13 is fixed on the support base 10, and the slider 14 is fixed to the end of a pipe clamping device. Optionally, the slide rail 13 can be cylindrical, and the corresponding slider 14 is sleeved on the slide rail 13.

[0057] Of course, it is understandable that in some embodiments, both pipe clamping pipes can be slidably mounted on the support base 10, as long as the distance between the two pipe clamping devices can be changed.

[0058] In this embodiment, the lower clamping device 30 includes a lower frame 32 and a lower clamp 31. The lower frame 32 is disposed on the support base 10, and the lower clamp 31 is disposed inside the lower frame 32.

[0059] The upper clamping device 20 includes an upper frame 22 and an upper clamp 21. One end of the upper frame 22 is hinged to one end of the lower frame 32, and the other end of the upper frame 22 is detachably connected to the other end of the lower frame 32. The upper clamp 21 is disposed inside the upper frame 22, and the upper clamp 21 and the lower clamp 31 together form a clamping cavity 34.

[0060] The upper clamping device 20 also includes a pressing mechanism 23. The upper clamp 21 is set on the upper frame 22 through the pressing mechanism 23. The pressing mechanism 23 is used to move the upper clamp 21 closer to or away from the lower clamp 31, thereby adjusting the size of the clamping cavity 34.

[0061] Of course, in some embodiments, a clamping mechanism 23 can be provided in the lower frame 32 to drive the lower clamp 31 to move, as long as the distance between the upper clamp 21 and the lower clamp 31 can be adjusted.

[0062] In this embodiment, the clamping mechanism 23 includes a clamping drive source 230 and a connecting rod 233 assembly. The clamping drive source 230 is fixed to the upper frame 22 and is connected to the upper clamp 21 through the connecting rod 233 assembly.

[0063] The linkage 233 assembly includes a force-applying rod 232, a connecting rod 233, and a power rod 234. A pressure drive source 230 is connected to one end of the force-applying rod 232, and the other end of the force-applying rod 232 is hinged to the upper frame 22. One end of the connecting rod 233 is hinged to the middle of the force-applying rod 232, and the other end of the connecting rod 233 is hinged to one end of the power rod 234. The other end of the power rod 234 is connected to the upper clamp 21, and the middle of the power rod 234 can be raised and lowered relative to the upper frame 22.

[0064] In this way, when the force-applying rod 232 rotates, it can drive the power rod 234 to move vertically in a linear motion through the connecting rod 233. The force-applying rod 232, the connecting rod 233, and the power rod 234 constitute the crank-slider 14 mechanism, so that the force of the clamping drive source 230 can be better transmitted to the upper clamp 21, with good transmission performance, so as to ensure that the upper clamp 21 connected to the power rod 234 can press down on the lower clamp 31, thereby clamping the pipe.

[0065] The clamping drive source 230 is a component capable of outputting linear driving force, such as a vertically arranged cylinder or hydraulic cylinder. The connecting rod 233 assembly also includes a transition rod 231. One end of the transition rod 231 is hinged to the telescopic drive part of the clamping drive source 230, and the other end of the transition rod 231 is hinged to one end of the force application rod 232, which can further improve the transmission performance.

[0066] In this embodiment, both the upper frame 22 and the lower frame 32 are welded from square tubing. The upper clamping device 20 also includes a mounting plate 24, which is fixed to the upper frame 22. The clamping mechanism 23 is disposed on the mounting plate 24, thereby indirectly fixing it to the upper frame 22, facilitating the installation of the clamping mechanism 23 on the hollow upper frame 22. That is, the clamping drive source 230 is fixed to the mounting plate 24, one end of the force application rod 232 is hinged to the mounting plate 24, and the power rod 234 is slidably disposed on the mounting plate 24 through a vertically arranged sliding pair.

[0067] Since both the upper clamp 21 and the lower clamp 31 are roughly arc-shaped, in order to ensure that the two ends of the upper clamp 21 have the same displacement when pressed down towards the lower clamp 31, the upper clamping device 20 includes two clamping mechanisms 23, which are respectively connected to the two ends of the upper clamp 21.

[0068] In this embodiment, both the upper clamp 21 and the lower clamp 31 include an arc tube 210, an arc plate, and a web plate 213. The two arc tubes 210 are arranged opposite to each other, and a web plate 213 is connected between the ends of the two arc tubes 210. That is, a web plate 213 is connected to one end of the two arc tubes 210, and a web plate 213 is also connected to the other end of the two arc tubes 210. The arc plate is connected between the two arc tubes 210.

[0069] The arc plate includes a first arc plate 211 and a second arc plate 212. The chord length of the first arc plate 211 is greater than the chord length of the second arc plate 212. The first arc plate 211 is connected between the two arc tubes 210 at a position near the end of the arc tube 210, and the second arc plate 212 is connected between the two arc tubes 210 at a position in the middle of the arc tubes 210.

[0070] In addition, both the upper clamp 21 and the lower clamp 31 include friction arc plates 214. The friction arc plates 214 are fixed between the inner arc surfaces of the two arc pipes 210, and the outer arc surface of the friction arc plates 214 is fixed to the arc plate. This increases the friction between the pipe and the upper clamp 21 and the lower clamp 31 during the clamping process, while also providing a certain degree of protection to prevent the pipe from rigidly contacting the clamp during clamping.

[0071] Threaded holes are provided on the first arc plate 211 and the second arc plate 212, and the fixed connection between the friction arc plate 214 and the arc plate is achieved by the threaded engagement of the bolt with the threaded hole.

[0072] A reinforcing rib 215 is provided between the arc tube 210 and the web plate 213 to strengthen the connection between the arc tube 210 and the web plate 213 and improve the reliability of the clamp.

[0073] In order to achieve the distance adjustment between the two pipe docking devices, the pipe docking equipment also includes a lateral drive device 40, which is fixed relative to the support base 10 and connected to a pipe clamping device for driving the two pipe clamping devices to move in opposite directions or towards each other.

[0074] The lateral drive device 40 can be a pneumatic cylinder or a hydraulic cylinder, with its cylinder body fixed relative to the support base 10, and the piston rod connected to the lower frame 32 of the pipe clamping device that is slidably mounted on the support base 10.

[0075] In addition, the lower frame 32 is provided with side plates 320. One side plate 320 of the pipe clamping device is fixedly connected to the support base 10, and the other side plate 320 of the pipe clamping device is provided with a slider 14 for sliding connection with the support base 10. The lateral drive device 40 is fixed between the side plates 320 of the two pipe clamping devices.

[0076] There are two lateral drive devices 40, which are located on both sides of the pipe clamping device, so as to ensure that the displacement on both sides is the same when the two pipe clamping devices approach each other, thereby ensuring the concentricity of the pipe connection and ensuring the smooth connection of the pipe.

[0077] The pipe clamping device also includes a flipping drive device 50, which is used to drive the upper clamping device 20 to flip when the other end of the upper clamping device 20 is disconnected from the other end of the lower clamping device 30.

[0078] Specifically, the tilting drive device 50 can be a pneumatic cylinder or a hydraulic cylinder, with its cylinder body mounted on a side plate 320 on a lower frame 32 that is fixed relative to the support base 10, and the piston rod connected to the side plate 320 on the lower frame 32 that is movably set.

[0079] It should also be noted that, in order to prevent the pipe clamping device from detaching from the track during the docking process, the lowest point of the lower frame 32 needs to be lower than the lowest point of the support 10. This allows the lower frame 32 and the support 10 to achieve a limiting effect through the height difference.

[0080] The following is an illustrative description of the implementation steps for pipe connection:

[0081] First, basic preparatory work is carried out. To ensure smooth pipe connection and avoid external factors affecting the connection effect, a hardened horizontal surface needs to be selected before pipe connection. A pipe rack of a certain height is then erected on the horizontal surface. The pipes to be connected are then placed stably on the pipe rack. At the same time, the horizontal lengths of the socket and spigot of the two pipes to be connected are measured in advance. Based on the sum of the measured lengths of the socket and spigot, the distance between the two pipe clamping devices is adjusted using the lateral drive device 40. Then, the pipe connection equipment, after being adjusted in distance, is pushed to the corresponding position using the rollers 12, that is, the pipe connection equipment is pushed between the two pipes.

[0082] Once the basic preparations are completed, the pipeline connection work can begin.

[0083] First, lift the pipes that need to be connected on the pipe rack, and push the pipe with the socket into the clamping cavity 34 of the right pipe clamping device. When the right end of the pipe socket is collinear with the left side of the upper clamp 21 and the lower clamp 31, stop pushing the pipe. Then adjust the lifting leg 11 below the right pipe clamping device until the lower clamp 31 of the right pipe clamping device contacts the pipe.

[0084] The second step is to slowly push the pipe with the spigot into the clamping cavity 34 of the left pipe clamping device using the same method as the first step. Then, align the left end of the spigot with the right side of the left upper clamp 21 and lower clamp 31. Next, adjust the lifting leg 11 below the left pipe approach device until the lower clamp 31 of the left pipe clamping device contacts the pipe.

[0085] The third step is to simultaneously activate the clamping mechanisms 23 of the left and right pipe clamping devices, so that the power of the clamping drive source 230 is transmitted to the upper clamp 21 through the connecting rod 233 assembly, causing the upper clamp 21 to move slowly downward, thereby reducing the clamping cavity 34. The upper clamp 21 contacts the pipe, and the pipe is gradually clamped.

[0086] The fourth step is to check the stability of each component of the pipe connection equipment, such as whether there is any shaking.

[0087] The fifth step is to apply a certain thickness of structural adhesive to the spigot and socket of the two pipes to ensure better connection.

[0088] Step 6: Activate the lateral drive device 40. The piston rod of the lateral drive device 40 drives the left pipe clamping device to move to the right to approach the right pipe clamping device, thereby making the spigot and socket align.

[0089] Step 7: After the pipes are connected, hold one end for a while, then release the two clamping mechanisms 23 on the left and right at the same time, so that the two upper clamps 21 rise away from the lower clamp 31 and loosen the pipes.

[0090] Step 8: Adjust the lifting leg 11 to slowly descend until the descent distance reaches the radius of the docking pipe and then stop. Then disconnect the other end of the upper clamping device 20 and the lower clamping device 30. Next, start the flipping drive device 50 to flip the upper clamping device 20 relative to the lower clamping device 30. After flipping, the pipe is lifted out, and the docking is completed.

[0091] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions 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 invention.

Claims

1. A pipe connection device, characterized in that, include: Support base; Two pipe clamping devices are mounted on the support and arranged opposite to each other, and the distance between the two pipe clamping devices is adjustable; The pipe clamping device includes a lower clamping device and an upper clamping device. The lower clamping device is disposed on the support base. One end of the upper clamping device is hinged to one end of the lower clamping device, and the other end of the upper clamping device is detachably connected to the other end of the lower clamping device. The upper clamping device and the lower clamping device together form a clamping cavity for pipe insertion, and the size of the clamping cavity is adjustable. The lower clamping device includes a lower frame and a lower clamp, the lower frame is disposed on the support base, and the lower clamp is disposed inside the lower frame; The upper clamping device includes an upper frame and an upper clamp. One end of the upper frame is hinged to one end of the lower frame, and the other end of the upper frame is detachably connected to the other end of the lower frame. The upper clamp is disposed inside the upper frame, and the upper clamp and the lower clamp together form the clamping cavity. The upper clamping device further includes a pressing mechanism, and the upper clamp is disposed on the upper frame through the pressing mechanism. The pressing mechanism is used to move the upper clamp closer to or away from the lower clamp. The clamping mechanism includes a clamping drive source and a connecting rod assembly. The clamping drive source is fixed to the upper frame and is connected to the upper clamp through the connecting rod assembly. The linkage assembly includes a force-applying rod, a connecting rod, and a power rod. The clamping drive source is connected to one end of the force-applying rod, and the other end of the force-applying rod is hinged to the upper frame. One end of the connecting rod is hinged to the middle of the force-applying rod, and the other end of the connecting rod is hinged to one end of the power rod. The other end of the power rod is connected to the upper clamp, and the middle of the power rod can be raised and lowered relative to the upper frame. The clamping drive source can output linear driving force, and the linkage assembly also includes a transition rod. One end of the transition rod is hinged to the telescopic drive part of the clamping drive source, and the other end of the transition rod is hinged to one end of the force-applying rod. Both the upper clamp and the lower clamp include an arc tube, an arc plate, and a web plate. The two arc tubes are arranged opposite each other, and the web plate is connected between the ends of the two arc tubes. The arc plate is connected between the two arc tubes. The arc plate includes a first arc plate and a second arc plate. The chord length of the first arc plate is greater than that of the second arc plate. The first arc plate is connected between the two arc tubes near the end of the arc tubes, and the second arc plate is connected between the two arc tubes at the middle of the arc tubes.

2. The pipe docking equipment according to claim 1, characterized in that, The upper clamping device also includes a mounting plate, which is fixed to the upper frame, and the clamping mechanism is disposed on the mounting plate; And / or, The upper clamping device includes two clamping mechanisms, which are respectively connected to both ends of the upper clamp.

3. The pipe docking equipment according to claim 1, characterized in that, The arc plate includes a first arc plate and a second arc plate. The chord length of the first arc plate is greater than that of the second arc plate. The first arc plate is connected between the two arc tubes near the end of the arc tubes, and the second arc plate is connected between the two arc tubes at the middle of the arc tubes. And / or, The friction arc plate is fixed between the inner arc surfaces of the two arc tubes, and the outer arc surface of the friction arc plate is fixed to the arc plate; And / or, A reinforcing rib is provided between the arc tube and the web.

4. The pipe docking equipment according to claim 1, characterized in that, The pipe docking equipment also includes a lateral drive device, which is used to drive the two pipe clamping devices to move in opposite directions or towards each other. And / or, The pipe clamping device further includes a flipping drive device, which is used to drive the upper clamping device to flip when the other end of the upper clamping device is disconnected from the other end of the lower clamping device. And / or, The bottom of the support base is equipped with rollers via lifting legs.

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