Connecting clamp for petroleum equipment

Abstract

The invention discloses a connecting hoop for petroleum equipment, and particularly relates to the technical field of hoops, the connecting hoop comprises a lower hoop sleeve, an upper hoop sleeve is arranged on the top surface of the lower hoop sleeve, and a sliding rail is fixedly mounted on the top surface of the lower hoop sleeve. In the process, due to the fact that a lower hoop sleeve and an upper hoop sleeve are tightened and closed, pressure on the pipeline can be generated, a plurality of rolling wheels can roll and drive a connecting frame to slide along the outer wall face of the pipeline, and then a cleaning plate can move along with movement of the connecting frame; at the moment, a cleaning plate can scrape cleaning liquid and dust on the surface of the pipeline together, after the steps are completed, a worker can enable a positioning seat and a rubber sealing gasket to move together through rotation of an adjusting bolt and conduct hoop connection on the pipeline, in the process, the surface of the pipeline is cleaned while the pipeline is subjected to hoop connection, and the cleaning efficiency is improved. Therefore, the effect of preventing the pipeline from being influenced by external dust or foreign matters during hoop connection is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of clamps, in particular to a connecting clamp for petroleum equipment. Background Art

[0002] A clamp is a connecting device used to connect grooved pipes, valves, and other pipe fittings. It's used to tighten quick-connect connectors. Typically, the connector incorporates gaskets, rubber, silicone, and PTFE. Clamps offer excellent performance, a high degree of sealing, and are easy to install. They are aesthetically pleasing, easy to use, and offer strong tightening and excellent sealing properties. They are primarily used to secure and seal joints at standard all-rubber hoses, nylon plastic hoses, cloth-reinforced hoses, and hoses in vehicles, ships, diesel and gasoline engines, machine tools, firefighting equipment, and various other mechanical and chemical equipment.

[0003] In the prior art, oil equipment often requires the use of clamps when connecting pipelines. When the clamps are used on the pipelines, the surface of the pipelines often needs to be cleaned to ensure the accuracy and sealing during installation. However, the pipeline connections of oil equipment are usually carried out outdoors, and the clamps are also installed outdoors. At this time, dust and foreign matter in the external environment will adhere to the space between the pipe wall and the clamp with the air or wind. At this time, traditional manual cleaning methods are not easy to completely clean the dust and foreign matter at the connection, which will affect the effect of the clamp after installation and use. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the present invention provides a connecting clamp for petroleum equipment to solve the problems raised in the above background technology.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: The top surface of the lower hoop is provided with an upper hoop, the top surface of the lower hoop is fixedly mounted with a slide rail, the interior of the slide rail is slidably connected with a connecting plate, and the connecting plate is rotatably connected to the upper hoop; a plurality of slide rods, a plurality of the slide rods are respectively fixedly mounted on the interior of the lower hoop and the upper hoop, the outer circular wall surface of the slide rod is movably sleeved with a return spring, and every two of the slide rods form a group, and two connecting frames are respectively provided inside the lower hoop and the upper hoop, the connecting frame is slidably connected to the slide rod, a cleaning plate is fixedly mounted on one side of the connecting frame, and a roller is rotatably connected to the interior of the connecting frame; the The interior of the lower hoop and the upper hoop are both hinged with a positioning seat, the inner circular wall of the positioning seat is fixedly installed with a rubber sealing gasket, the outer circular wall of the positioning seat is rotatably connected to two adjusting bolts, the outer circular wall of the lower hoop and the upper hoop are each provided with two adjusting threaded holes, the inner circular wall of the adjusting threaded hole is threadedly connected to the adjusting bolts; docking components are provided on both sides of the lower hoop, and are used to dock the oil equipment pipeline between the lower hoop and the upper hoop; auxiliary support components are provided on both sides of the lower hoop and the upper hoop, and are used to provide auxiliary support to the pipeline when the oil equipment pipeline is docked inside the lower hoop and the upper hoop.

[0006] The cam is then tightened to fit the pipe, and the cam is then tightened to fit the pipe, and the cam is then tightened to fit the pipe.

[0007] Preferably, the docking assembly includes: two lower docking sleeves, the two lower docking sleeves are respectively arranged on both sides of the lower hoop sleeve, the top surface of the lower docking sleeve is rotatably connected to the upper docking sleeve, one side of the lower docking sleeve is rotatably connected to the docking bolt, and threaded sleeves are respectively fixedly installed on both sides of the lower hoop sleeve, and the threaded sleeves are threadedly connected to the docking bolts.

[0008] By adopting the above technical solution, the pipes to be docked are placed inside the two lower docking sleeves, and the pipes are limited between the lower docking sleeves and the upper docking sleeves by two upper docking sleeves and fixing bolts. Then, the docking bolts are rotated to enable the lower docking sleeves and the upper docking sleeves to drive the pipes inside them to move linearly, so that the docking point of the pipes is moved between the lower hoop sleeve and the upper hoop sleeve, thereby improving the accuracy of pipe docking.

[0009] Preferably, the auxiliary support assembly includes: a plurality of auxiliary support plates, which are respectively arranged on both sides of the lower hoop and the upper hoop, and the first mounting caps are respectively fixedly installed on both sides of the lower hoop and the upper hoop, the first mounting cap is internally movably sleeved with a first connecting column, the outer circular wall of the first connecting column is threaded, the first connecting column is threadedly connected to the first mounting cap, the outer circular wall of the first connecting column is movably sleeved with a first spring, and the top surface of the first connecting column is fixedly installed with the auxiliary support plates.

[0010] By adopting the above technical solution, after the pipe is docked between the lower hoop and the upper hoop, the first connecting column can be rotated to release the thread limit of the first mounting cap on the first connecting column, and then the rebound force of the first spring will drive the first connecting column and the auxiliary support plate to move upward. At this time, the two auxiliary support plates form a group to clamp the pipe, thereby providing auxiliary support for the pipe, thereby improving the accuracy of the pipe when the clamp is connected.

[0011] Preferably, a second guide rod is fixedly installed on one side of the lower docking sleeve, and positioning sleeves are fixedly installed on both sides of the lower hoop sleeve, and the inner circular wall surface of the positioning sleeve is movably connected to the second guide rod. Two positioning plates are fixedly installed on both sides of the lower hoop sleeve and the upper hoop sleeve, and each two positioning plates form a group. Two first guide rods are fixedly installed on the outer circular wall surface of the auxiliary support plate, and the first guide rods are movably connected to the inner circular wall surface of the positioning plate.

[0012] By adopting the above technical solution, the positioning sleeve and the positioning plate can limit and guide the auxiliary support plate and the lower docking sleeve when they move, thereby preventing them from being deviated during movement and affecting subsequent docking and clamp connection.

[0013] Preferably, the inner circular wall surfaces of the lower docking sleeve and the upper docking sleeve are fixedly sleeved with a plurality of fastening rubber strips.

[0014] By adopting the above technical solution, through the cooperation of multiple fastening rubber strips, when the lower butt sleeve and the upper butt sleeve are closed, the fastening rubber strips are deformed by the extrusion force and fill the gaps between the pipe and the lower butt sleeve and the upper butt sleeve, thereby increasing the friction between the pipe and the lower butt sleeve and the upper butt sleeve, and preventing the pipe from being displaced during docking.

[0015] Preferably, two connecting shells are fixedly mounted on the outer circumferential wall of the lower hoop, and an attachment base is threadedly connected between the two connecting shells.

[0016] By adopting the above technical solution, the detachable support base can meet the function of supporting and fixing the lower clamp sleeve when the pipeline is connected with the ground clamp.

[0017] Preferably, a limiting sleeve is fixedly installed on both sides of the supporting base, the internal movably sleeve of the limiting sleeve is connected with a first fixing nail, the internal bottom surface of the supporting base is provided with a circular through hole, and the inner circular wall surface of the circular through hole is movably sleeved with a second fixing nail.

[0018] By adopting the above technical solution, through the cooperation of the first fixing nail and the second fixing nail, it is convenient to fix the pipeline after it is connected with the ground clamp and improve its stability during use.

[0019] Preferably, two second mounting caps are fixedly mounted on the bottom surface of the supporting base, a second spring is movably sleeved inside the second mounting cap, a second connecting column is slidably connected inside the second mounting cap, and a support plate is fixedly mounted on the bottom surface of the second connecting column.

[0020] By adopting the above technical solution, the retractable support plate can facilitate the support base to be placed on the bottom surface for use, so that it can adapt to terrains with different height differences.

[0021] In summary, the present invention mainly has the following beneficial effects: 1. The present invention tightens the lower hoop and the upper hoop by means of bolts. During this process, the lower hoop and the upper hoop are tightened and closed, thereby generating pressure on the pipe, and then the multiple rollers will roll and drive the connecting frame to slide along the outer wall surface of the pipe, and then the cleaning plate will move together with the movement of the connecting frame. At this time, the cleaning plate will scrape off the cleaning liquid and dust on the surface of the pipe. After the above steps are completed, the staff can move the positioning seat and the rubber sealing gasket together by adjusting the rotation of the bolt and clamp the pipe. In this process, the surface of the pipe is cleaned while the clamp is being connected, thereby achieving the effect of preventing the pipe from being affected by external dust or foreign matter when the clamp is connected.

[0022] 2. The present invention places the pipes to be butted inside the two lower butt sleeves, and limits the pipes between the lower butt sleeves and the upper butt sleeves through two upper butt sleeves and fixing bolts. Then, by rotating the butt bolts, the lower butt sleeves and the upper butt sleeves can drive the pipes inside them to move linearly, thereby moving the butt joint of the pipes between the lower hoop and the upper hoop, thereby improving the accuracy of pipe butt joint.

[0023] 3. The present invention connects the pipe between the lower hoop and the upper hoop, and then rotates the first connecting column to release the thread limit of the first mounting cap on the first connecting column. Then the rebound force of the first spring drives the first connecting column and the auxiliary support plate to move upward. At this time, the two auxiliary support plates are a group to clamp the pipe, thereby achieving auxiliary support for the pipe, thereby improving the accuracy of the pipe when the clamp is connected.

[0024] 4. The present invention can limit and guide the auxiliary support plate and the lower docking sleeve when they move through the positioning sleeve and the positioning plate, thereby preventing them from being deviated during movement and affecting the subsequent docking and clamp connection effects.

[0025] 5. The present invention cooperates with multiple fastening rubber strips. When the lower butt joint sleeve and the upper butt joint sleeve are closed, the fastening rubber strips are deformed by the extrusion force and fill the gaps between the pipe and the lower butt joint sleeve and the upper butt joint sleeve, thereby increasing the friction between the pipe and the lower butt joint sleeve and the upper butt joint sleeve, and preventing the pipe from being dislocated during docking.

[0026] 6. The present invention facilitates fixing the pipeline after it is connected with a ground clamp through the cooperation of the first fixing nail and the second fixing nail, thereby improving its stability during use. The retractable support plate facilitates the support base to be placed on the bottom surface for use, so that it can adapt to terrains with different height differences. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the slide rail structure of the present invention; Figure 3 It is a schematic structural diagram of the lower hoop of the present invention; Figure 4 yes Figure 3 A partial enlarged schematic diagram; Figure 5 It is a schematic diagram of the first mounting cap structure of the present invention; Figure 6 This is a schematic diagram of the lower docking sleeve structure of the present invention; Figure 7 It is a schematic diagram of the supporting base structure of the present invention; Figure 8 It is a schematic diagram of the second mounting cap structure of the present invention.

[0028] 1. The cam is provided with a plurality of support plates, each of which is provided with a plurality of support plates, and a plurality of support plates are provided with plurality of support plates. The support plates are provided with a plurality of support plates, and a plurality of support plates are provided with plurality of support plates. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Example: Reference Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 6A connecting clamp for petroleum equipment includes: a lower hoop sleeve 1, an upper hoop sleeve 2 is provided on the top surface of the lower hoop sleeve 1, a slide rail 3 is fixedly installed on the top surface of the lower hoop sleeve 1, a connecting plate 8 is slidably connected to the inner part of the slide rail 3, and the connecting plate 8 is rotatably connected to the upper hoop sleeve 2; a plurality of slide rods 12, which are respectively fixedly installed in the lower hoop sleeve 1 and the inner part of the upper hoop sleeve 2, and the outer circular wall surface of the slide rod 12 is movably sleeved with a reset spring 13, and every two slide rods 12 form a group, and the lower hoop sleeve 1 and the upper hoop sleeve 2 are provided with two connecting frames 22, the connecting frame 22 is slidably connected to the slide rod 12, a cleaning plate 23 is fixedly installed on one side of the connecting frame 22, and the internal rotation of the connecting frame 22 is connected to the roller 10; the lower hoop 1 and the upper hoop 2 are hinged with a positioning seat 11, the inner circular wall of the positioning seat 11 is fixedly installed with a rubber sealing gasket 9, and the outer circular wall of the positioning seat 11 is rotatably connected with two adjusting bolts 15, and the outer circular wall of the lower hoop 1 and the upper hoop 2 are provided with two adjusting bolts The threaded hole 14 is threadedly connected to the inner wall of the adjusting threaded hole 14 with the adjusting bolt 15; a docking assembly is provided on both sides of the lower hoop 1 and is used to dock the oil equipment pipeline between the lower hoop 1 and the upper hoop 2; the docking assembly comprises: two lower docking sleeves 5, the two lower docking sleeves 5 are respectively arranged on both sides of the lower hoop 1, the top surface of the lower docking sleeve 5 is rotatably connected with the upper docking sleeve 6, and one side of the lower docking sleeve 5 is rotatably connected with a docking bolt 26, and the two sides of the lower hoop 1 are respectively fixedly mounted with threaded sleeves 17, which are threadedly connected with the docking bolts 26. By placing the pipe to be docked inside the two lower docking sleeves 5, and limiting the pipe between the lower docking sleeve 5 and the upper docking sleeve 6 by the two upper docking sleeves 6 and the fixing bolts, and then rotating the docking bolts 26 can make the lower docking sleeve 5 and the upper docking sleeve 6 drive the pipe inside thereof to move linearly, so that the docking point of the pipe moves between the lower hoop 1 and the upper hoop 2, which is convenient for improving the accuracy of pipe docking.

[0031] Based on the above embodiment, reference Figure 1 、 Figure 2 、 Figure 3 and Figure 5, auxiliary support components are provided on both sides of the lower hoop 1 and the upper hoop 2, and are used to provide auxiliary support to the pipeline when the oil equipment pipeline is docked inside the lower hoop 1 and the upper hoop 2. The auxiliary support components include: a number of auxiliary support plates 4, a number of auxiliary support plates 4 are respectively provided on both sides of the lower hoop 1 and the upper hoop 2, and a first mounting cap 21 is fixedly installed on both sides of the lower hoop 1 and the upper hoop 2. The first mounting cap 21 is movably sleeved inside the first connecting column 24, and the outer circular wall surface of the first connecting column 24 is provided with a thread, and the first connecting column 24 is screwed into the first mounting cap 21 The first connecting column 24 is connected with a threaded connection, and the outer circular wall surface of the first connecting column 24 is movably sleeved with a first spring 25. The top surface of the first connecting column 24 is fixedly installed with the auxiliary support plate 4. After the pipe is docked between the lower hoop 1 and the upper hoop 2, the first connecting column 24 can be rotated so that the first mounting cap 21 releases the thread limit of the first connecting column 24, and then the rebound force of the first spring 25 will drive the first connecting column 24 and the auxiliary support plate 4 to move upward. At this time, the two auxiliary support plates 4 are a group to clamp the pipe, so as to provide auxiliary support to the pipe, thereby improving the accuracy of the pipe when the clamp is connected.

[0032] Based on the above embodiment, reference Figure 3 、 Figure 6 、 Figure 7 and Figure 8, a second guide rod 27 is fixedly installed on one side of the lower docking sleeve 5, and a positioning sleeve 18 is fixedly installed on both sides of the lower hoop 1. The inner wall of the positioning sleeve 18 is movably connected to the second guide rod 27. Two positioning plates 19 are fixedly installed on both sides of the lower hoop 1 and the upper hoop 2, and each two positioning plates 19 form a group. Two first guide rods 20 are fixedly installed on the outer wall of the auxiliary support plate 4. The first guide rod 20 is movably connected to the inner wall of the positioning plate 19. Through the positioning sleeve 18 and the positioning plate 19, the auxiliary support plate 4 and the lower docking sleeve 5 can be fixedly installed. When the lower butt joint 5 and the upper butt joint 6 are closed, the fastening rubber strips 28 are deformed by the extrusion force and filled into the gap between the pipe and the lower butt joint 5 and the upper butt joint 6, thereby increasing the friction between the pipe and the lower butt joint 5 and the upper butt joint 6, and preventing the pipe from being deformed when the pipe is butt jointed. The deviation phenomenon is caused by the outer circular wall surface of the lower hoop 1 being fixedly installed with two connecting shells 16, and the two connecting shells 16 are threadedly connected with an attached support base 7. The detachable attached support base 7 can satisfy the function of supporting and fixing the lower hoop 1 when the pipeline is docked with the ground clamp. The two sides of the attached support base 7 are respectively fixedly installed with a limiting sleeve 29, and the inner movably sleeve of the limiting sleeve 29 is connected with a first fixing nail 30. The inner bottom surface of the attached support base 7 is provided with a circular through hole, and the inner circular wall surface of the circular through hole is movably sleeved with a second fixing nail 31. Through the first fixing nail The cooperation between 30 and the second fixing nail 31 makes it convenient to fix the pipeline after the ground clamp connection is used to improve its stability during use. Two second mounting caps 32 are fixedly installed on the bottom surface of the support base 7. The second mounting caps 32 are movably sleeved with a second spring 34. The second mounting caps 32 are slidably connected to the second connecting column 35 inside. The bottom surface of the second connecting column 35 is fixedly installed with a support plate 33. The retractable support plate 33 makes it convenient for the support base 7 to adapt to terrains with different height differences when it is placed on the bottom surface for use.

[0033] Working principle: Please refer to Figures 1-8After the cam 11 is in the closed position, the upper and lower ends of the cam 12 are tightened and the lower and upper ends of the cam 12 are tightened, thereby the cam 12 is tightened and the lower and upper ends of the cam 12 are tightened.

[0034] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A connecting clamp for petroleum equipment, characterized in that: include: A lower hoop, wherein the top surface of the lower hoop is provided with an upper hoop, the top surface of the lower hoop is fixedly installed with a slide rail, the interior of the slide rail is slidably connected with a connecting plate, and the connecting plate is rotatably connected to the upper hoop; A plurality of slide rods are respectively fixedly mounted inside the lower hoop and the upper hoop, the outer circular wall of the slide rod is movably sleeved with a return spring, and each two slide rods form a group. Two connecting frames are provided inside the lower hoop and the upper hoop, and the connecting frames are slidably connected to the slide rods. A cleaning plate is fixedly mounted on one side of the connecting frame, and a roller is rotatably connected inside the connecting frame; The interior of the lower hoop and the upper hoop are both hinged with a positioning seat, the inner circular wall of the positioning seat is fixedly installed with a rubber sealing gasket, the outer circular wall of the positioning seat is rotatably connected to two adjusting bolts, the outer circular wall of the lower hoop and the upper hoop are both provided with two adjusting threaded holes, and the inner circular wall of the adjusting threaded hole is threadedly connected to the adjusting bolt; The lower hoop is provided with docking assemblies on both sides, and is used to dock the oil equipment pipeline between the lower hoop and the upper hoop; Auxiliary support components are provided on both sides of the lower hoop and the upper hoop, and are used to provide auxiliary support to the pipeline when the oil equipment pipeline is docked inside the lower hoop and the upper hoop.

2. A connecting clamp for petroleum equipment according to claim 1, characterized in that: The docking assembly includes: two lower docking sleeves, which are respectively arranged on both sides of the lower hoop sleeve, the top surface of the lower docking sleeve is rotatably connected to the upper docking sleeve, one side of the lower docking sleeve is rotatably connected to the docking bolt, and threaded sleeves are fixedly installed on both sides of the lower hoop sleeve, which are threadedly connected to the docking bolts. By placing the pipes to be docked inside the two lower docking sleeves, and limiting the pipes between the lower docking sleeves and the upper docking sleeves through the two upper docking sleeves and the fixing bolts, and then rotating the docking bolts, the lower docking sleeves and the upper docking sleeves can drive the pipes inside them to move linearly, so that the docking point of the pipes moves between the lower hoop sleeve and the upper hoop sleeve, so as to improve the accuracy of pipe docking.

3. A connecting clamp for petroleum equipment according to claim 2, characterized in that: The auxiliary support assembly includes: a plurality of auxiliary support plates, which are respectively arranged on both sides of the lower hoop sleeve and the upper hoop sleeve, and the first mounting caps are fixedly installed on both sides of the lower hoop sleeve and the upper hoop sleeve, and the first mounting cap is movably sleeved on the inside of the first connecting column, and the outer circular wall of the first connecting column is provided with a thread, the first connecting column is threadedly connected to the first mounting cap, and the outer circular wall of the first connecting column is movably sleeved on the first spring, and the top surface of the first connecting column is fixedly installed with the auxiliary support plate. After the pipe is docked between the lower hoop sleeve and the upper hoop sleeve, the first connecting column can be rotated so that the thread limit of the first mounting cap on the first connecting column is released, and then the rebound force of the first spring will drive the first connecting column and the auxiliary support plate to move upward. At this time, the two auxiliary support plates are a group to clamp the pipe, so as to provide auxiliary support to the pipe, thereby improving the accuracy of the pipe when the clamp is connected.

4. A connecting clamp for petroleum equipment according to claim 3, characterized in that: A second guide rod is fixedly installed on one side of the lower docking sleeve, and a positioning sleeve is fixedly installed on both sides of the lower hoop sleeve. The inner circular wall surface of the positioning sleeve is movably connected to the second guide rod. Two positioning plates are fixedly installed on both sides of the lower hoop sleeve and the upper hoop sleeve, and each two positioning plates form a group. Two first guide rods are fixedly installed on the outer circular wall surface of the auxiliary support plate, and the first guide rod is movably connected to the inner circular wall surface of the positioning plate. The positioning sleeve and the positioning plate can be used to limit and guide the auxiliary support plate and the lower docking sleeve when they move, thereby preventing them from deviating during movement and affecting subsequent docking and clamp connection.

5. The connecting clamp for petroleum equipment according to claim 2, characterized in that: The inner circular wall surfaces of the lower butt joint sleeve and the upper butt joint sleeve are fixedly sleeved with a plurality of fastening rubber strips. Through the cooperation of the plurality of fastening rubber strips, when the lower butt joint sleeve and the upper butt joint sleeve are closed, the fastening rubber strips are deformed by the extrusion force and fill the gaps between the pipe and the lower butt joint sleeve and the upper butt joint sleeve, thereby increasing the friction between the pipe and the lower butt joint sleeve and the upper butt joint sleeve, and preventing the pipe from being deflected during butt joint.

6. The connecting clamp for petroleum equipment according to claim 1, characterized in that: Two connecting shells are fixedly installed on the outer circular wall of the lower hoop, and an attachment base is threadedly connected between the two connecting shells. The detachable attachment base can support and fix the lower hoop when the pipeline is connected with the ground clamp.

7. The connecting clamp for petroleum equipment according to claim 6, characterized in that: Limiting sleeves are fixedly installed on both sides of the supporting base respectively, and the internal movably sleeve of the limiting sleeve is connected with a first fixing nail. A circular through hole is opened on the inner bottom surface of the supporting base, and the inner circular wall surface of the circular through hole is movably connected with a second fixing nail. Through the cooperation of the first fixing nail and the second fixing nail, it is convenient to fix the pipeline after it is connected with the ground clamp to improve its stability during use.

8. The connecting clamp for petroleum equipment according to claim 6, characterized in that: Two second mounting caps are fixedly installed on the bottom surface of the attachment base, a second spring is movably sleeved inside the second mounting cap, a second connecting column is slidably connected inside the second mounting cap, and a support plate is fixedly installed on the bottom surface of the second connecting column. The retractable support plate allows the attachment base to be placed on the bottom surface for use and adapt to terrains with different height differences.

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