A replacement tool for the inner air pipe of a drag chain

Abstract

The present application discloses a replacement tool for the inner air pipe of a drag chain, belonging to the technical field of drag chains. The replacement tool for the inner air pipe of the drag chain includes a basic component and a connection component. The basic component includes: a drag chain body and an old air pipe. The connection component includes a new air pipe, an external thread plate, an internal thread column, a lead screw, a first hollow column, a guide rod, a connection plate, a second hollow column, a gear transmission member, and a connection shaft. During use, by controlling the rotation direction of the connection shaft, the separation or closure of the three external thread plates can be controlled. After adjusting the distance between the three external thread plates, the two ends of the external thread plate are respectively screwed into the old air pipe and the new air pipe to realize the connection between the old air pipe and the new air pipe. Then, the old air pipe is pulled out from the other end, and the new air pipe enters the drag chain body to complete the replacement of the old air pipe. This replacement tool can replace the old air pipe without removing the cover plate on the drag chain body, improving the replacement efficiency of the old air pipe.

Description

Technical Field

[0001] The present application belongs to the technical field of tank chains, and more specifically, to a tool for replacing an air pipe in a tank chain. Background Art

[0002] The safe service life of the tank chain is not less than one million times. The tank chain is suitable for use in reciprocating motion occasions, and can play a role in traction and protection of built-in cables, oil pipes, air pipes, water pipes, etc. Each section of the tank chain can be opened for easy installation and maintenance. It has low noise during movement, is wear-resistant, and can move at high speed.

[0003] Currently, when replacing the air pipe in the tank chain, the new air pipe and the old air pipe are connected together using an air pipe joint, and then the old air pipe is replaced. However, when the diameter of the air pipe joint is too large, the air pipe with a small space cannot be led out. At this time, the cover plate on the tank chain needs to be removed to replace the old air pipe, which reduces the efficiency of replacing the old air pipe. Summary of the invention

[0004] In order to solve the defects existing in the above-mentioned technology, the present application provides a tool for replacing the air pipe in a tank chain. Its essence is to improve the replacement of the air pipe in the tank chain by connecting the new air pipe and the old air pipe together using the air pipe joint, and then replacing the old air pipe. However, when the diameter of the air pipe joint is too large, the air pipe with a small space cannot be led out. At this time, it is necessary to remove the cover plate on the tank chain to replace the old air pipe, which reduces the efficiency of replacing the old air pipe.

[0005] To achieve the above objectives, the technical solution of this application is as follows:

[0006] A replacement tool for an air pipe in a tank chain comprises a basic component and a connecting component.

[0007] The basic component includes: a tank chain body and an old gas pipe, and the old gas pipe is arranged in the tank chain body.

[0008] The connecting assembly includes a new air pipe, an externally threaded plate, an internally threaded column, a screw, a first hollow column, a guide rod, a connecting plate, a second hollow column, a gear transmission member and a connecting shaft. One end of the externally threaded plate is inserted in the old air pipe, and the other end of the externally threaded plate is inserted in the new air pipe. The second hollow column is fixed in the first hollow column. The connecting shaft is rotatably arranged in the second hollow column. The screw rotates through the first hollow column. One end of the internally threaded column is fixed in the inner wall of the externally threaded plate. The internally threaded column is threadedly sleeved on the screw. The screw and the connecting shaft are connected together through the gear transmission member. The connecting plate is fixed on the outer wall of the internally threaded column. One end of the guide rod is fixed on the outer wall of the first hollow column. The guide rod slides through the connecting plate.

[0009] In the above implementation process, three external thread plates are provided, and the external thread plates are axially equidistantly arranged outside the connecting shaft.

[0010] In the above implementation process, the connecting component further includes a limiting block, and the limiting block is fixed at the end of the guide rod.

[0011] In the above implementation process, at least three guide rods are provided, the guide rods are axially equidistantly arranged on the outer wall of the internal thread column, and the number of the guide rods is the same as the number of the connecting plates.

[0012] In the above implementation process, the connecting component further includes a connecting column, and the connecting column is fixed between the outer wall of the second hollow column and the inner wall of the first hollow column.

[0013] In the above implementation process, the gear transmission member includes a first bevel gear and a second bevel gear. The first bevel gear is fixed on the outer wall of the connecting shaft, the second bevel gear is fixed on the outer wall of the lead screw, and the first bevel gear meshes with the second bevel gear.

[0014] In the above implementation process, the connecting component further includes a control lever, and one end of the control lever is fixed on the outer wall of the connecting shaft.

[0015] In the above implementation process, the base component further includes a frame, and the tank chain body is arranged on the frame.

[0016] Compared with the prior art, the present application has the following advantages:

[0017] During use, the external thread plate is made by grinding off both ends of a threaded screw, opening a hole in the screw, and then splitting the screw into three external thread plates. According to the inner diameters of the old air pipe and the new air pipe, the connecting shaft is rotated. The rotation of the connecting shaft drives the gear transmission member to rotate, and the rotation of the gear transmission member drives the lead screw to rotate. The external thread plate and the internal thread column move under the combined action of the lead screw, the first hollow column, the connecting plate and the guide rod. By controlling the rotation direction of the connecting shaft, the separation or closing of the three external thread plates can be controlled. After adjusting the distance between the three external thread plates, the two ends of the external thread plate are respectively screwed into the old air pipe and the new air pipe to realize the connection of the old air pipe and the new air pipe. Pull out the old air pipe from the other end, so that the new air pipe enters the tank chain body to realize the replacement of the old air pipe. This replacement tool can realize the replacement of the old air pipe without removing the cover plate on the tank chain body, improving the replacement efficiency of the old air pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of a replacement tool for the inner air pipe of a tank chain provided by an embodiment of the present application;

[0019] Figure 2 It is a relational diagram of the old air pipe and the new air pipe provided by the embodiment of the present application;

[0020] Figure 3 It is a relational diagram of the external thread plate, the first hollow column and the second hollow column provided by the embodiment of the present application;

[0021] Figure 4 provided by the embodiment of the present application Figure 3 An enlarged view of area A in

[0022] In the figure: basic component 100, frame 110, drag chain body 120, old air pipe 130, connection component 200, new air pipe 210, external thread plate 220, internal thread column 230, lead screw 240, first hollow column 250, guide rod 260, limit block 270, connection plate 280, second hollow column 290, connection column 291, gear transmission part 292, first bevel gear 2921, second bevel gear 2922, connection shaft 293, operating rod 294. Specific Embodiments

[0023] In order to make the purpose, technical solutions and advantages of the present application clearer, the following further describes the present application in detail with reference to embodiments.

[0024] It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0025] In the embodiments, unless otherwise specified, the means used are all conventional means in the art.

[0026] Please refer to Figures 1 - 4, this application provides a replacement tool for the inner air pipe of a drag chain, which includes a basic component 100 and a connecting component 200. The connecting component 200 is arranged on the basic component 100. According to the inner diameters of the old air pipe 130 and the new air pipe 210, the connecting shaft 293 is rotated. The rotation of the connecting shaft 293 drives the gear transmission part 292 to rotate, and the rotation of the gear transmission part 292 drives the lead screw 240 to rotate. Under the combined action of the lead screw 240, the first hollow column 250, the connecting plate 280 and the guide rod 260, the external thread plate 220 and the internal thread column 230 move. By controlling the rotation direction of the connecting shaft 293, the separation or closing of the three external thread plates 220 can be controlled. After adjusting the distance between the three external thread plates 220, the two ends of the external thread plate 220 are respectively screwed into the old air pipe 130 and the new air pipe 210 to realize the connection between the old air pipe 130 and the new air pipe 210. The old air pipe 130 is pulled out from the other end, and the new air pipe 210 enters the drag chain body 120, realizing the replacement of the old air pipe 130. This replacement tool can replace the old air pipe 130 without removing the cover plate on the drag chain body 120, improving the replacement efficiency of the old air pipe 130.

[0027] Please refer to Figure 1 , the basic component 100 includes: the drag chain body 120 and the old air pipe 130. The old air pipe 130 is arranged inside the drag chain body 120. The basic component 100 further includes a frame 110. The drag chain body 120 is arranged on the frame 110, and the frame 110 facilitates the operation of the drag chain body 120.

[0028] Please refer to Figures 2 - 4 , the connecting component 200 includes a new air pipe 210, an external thread plate 220, an internal thread column 230, a lead screw 240, a first hollow column 250, a guide rod 260, a connecting plate 280, a second hollow column 290, a gear transmission part 292 and a connecting shaft 293. One end of the external thread plate 220 is inserted into the old air pipe 130, and the other end of the external thread plate 220 is inserted into the new air pipe 210. There are three external thread plates 220, and the three external thread plates 220 are axially equidistantly arranged outside the connecting shaft 293. The three external thread plates 220 make it more firmly fixed in the old air pipe 130 and the new air pipe 210. The second hollow column 290 is fixed inside the first hollow column 250. The connecting component 200 further includes a connecting column 291. The connecting column 291 is fixed between the outer wall of the second hollow column 290 and the inner wall of the first hollow column 250. The connecting column 291 facilitates the installation and fixation of the first hollow column 250 to the second hollow column 290. The connecting shaft 293 is rotatably arranged inside the second hollow column 290. The lead screw 240 rotatably penetrates the first hollow column 250. One end of the internal thread column 230 is fixed inside the inner wall of the external thread plate 220, and the internal thread column 230 is threadedly sleeved on the lead screw 240.

[0029] The lead screw 240 and the connecting shaft 293 are drivingly connected together through a gear transmission member 292. The gear transmission member 292 includes a first bevel gear 2921 and a second bevel gear 2922. The first bevel gear 2921 is fixed on the outer wall of the connecting shaft 293, and the second bevel gear 2922 is fixed on the outer wall of the lead screw 240. The first bevel gear 2921 and the second bevel gear 2922 are meshed, and the first bevel gear 2921 and the second bevel gear 2922 enable the lead screw 240 and the connecting shaft 293 to rotate synchronously. The connecting assembly 200 further includes a joystick 294. One end of the joystick 294 is fixed on the outer wall of the connecting shaft 293, and the joystick 294 facilitates the rotation of the connecting shaft 293. The connecting plate 280 is fixed on the outer wall of the internal thread column 230. One end of the guide rod 260 is fixed on the outer wall of the first hollow column 250. The guide rod 260 slidably penetrates through the connecting plate 280. The connecting assembly 200 further includes a limit block 270. The limit block 270 is fixed at the end of the guide rod 260, and the limit block 270 effectively prevents the guide rod 260 from sliding out of the connecting plate 280. At least three guide rods 260 are provided, and the guide rods 260 are axially equidistantly arranged on the outer wall of the internal thread column 230. The number of the guide rods 260 is the same as the number of the connecting plates 280. The multiple guide rods 260 enable the internal thread column 230 to move more smoothly on the lead screw 240.

[0030] Specifically, the working principle of the replacement tool for the inner air pipe of the cable carrier: When in use, the outer thread plate 220 is made by grinding off both ends of a threaded screw, drilling a hole in the screw, and then dividing the screw into three outer thread plates 220. According to the inner diameters of the old air pipe 130 and the new air pipe 210, the connecting shaft 293 is rotated. The rotation of the connecting shaft 293 drives the gear transmission member 292 to rotate, and the rotation of the gear transmission member 292 drives the lead screw 240 to rotate. The outer thread plate 220 and the internal thread column 230 move under the combined action of the lead screw 240, the first hollow column 250, the connecting plate 280, and the guide rod 260. Controlling the rotation direction of the connecting shaft 293 can control the separation or closing of the three outer thread plates 220. After adjusting the distance between the three outer thread plates 220, the two ends of the outer thread plate 220 are respectively screwed into the old air pipe 130 and the new air pipe 210 to realize the connection between the old air pipe 130 and the new air pipe 210. The old air pipe 130 is pulled out from the other end, and the new air pipe 210 enters the cable carrier body 120, realizing the replacement of the old air pipe 130. The replacement tool can replace the old air pipe 130 without removing the cover plate on the cable carrier body 120, improving the replacement efficiency of the old air pipe 130.

[0031] The above embodiments only represent several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application.

[0032] It should be noted that, for those of ordinary skill in the art, without departing from the concept of this application, several modifications and improvements can still be made, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application shall be subject to the appended claims.

Claims

1. A replacement tool for the inner air pipe of a drag chain, characterized in that, include: A basic assembly (100), the basic assembly (100) comprising: a tank chain body (120) and an old gas pipe (130), the old gas pipe (130) being arranged in the tank chain body (120); and A connection assembly (200), the connection assembly (200) comprising a new air pipe (210), an externally threaded plate (220), an internally threaded column (230), a screw rod (240), a first hollow column (250), a guide rod (260), a connection plate (280), a second hollow column (290), a gear transmission member (292) and a connection shaft (293), one end of the externally threaded plate (220) being inserted into the old air pipe (130), the other end of the externally threaded plate (220) being inserted into the new air pipe (210), the second hollow column (290) being fixed in the first hollow column (250), and the connection shaft (293) being rotatably arranged in the old air pipe (130). In the second hollow column (290), the screw rod (240) rotates and passes through the first hollow column (250), one end of the internal thread column (230) is fixed in the inner wall of the external thread plate (220), the internal thread column (230) is threadedly sleeved on the screw rod (240), the screw rod (240) and the connecting shaft (293) are connected together by the gear transmission member (292), the connecting plate (280) is fixed on the outer wall of the internal thread column (230), one end of the guide rod (260) is fixed on the outer wall of the first hollow column (250), and the guide rod (260) slides through the connecting plate (280); There are three external thread plates (220), and the external thread plates (220) are axially equidistantly arranged outside the connecting shaft (293); The connection assembly (200) further comprises a limit block (270), wherein the limit block (270) is fixed to the end of the guide rod (260).

2. The replacement tool for the inner air pipe of a drag chain according to claim 1, characterized in that, At least three guide rods (260) are provided, and the guide rods (260) are axially equidistantly arranged on the outer wall of the internally threaded column (230), and the number of the guide rods (260) is the same as the number of the connecting plates (280).

3. A replacement tool for the inner air pipe of a drag chain according to claim 1, characterized in that, The connection assembly (200) further comprises a connection column (291), wherein the connection column (291) is fixed between the outer wall of the second hollow column (290) and the inner wall of the first hollow column (250).

4. A replacement tool for the inner air pipe of a drag chain, as claimed in claim 1, wherein The gear transmission member (292) comprises a first bevel gear (2921) and a second bevel gear (2922); the first bevel gear (2921) is fixed on the outer wall of the connecting shaft (293); the second bevel gear (2922) is fixed on the outer wall of the screw rod (240); the first bevel gear (2921) and the second bevel gear (2922) are meshed.

5. A replacement tool for the inner air pipe of a drag chain, as claimed in claim 1, wherein The connection assembly (200) further comprises a joystick (294), one end of the joystick (294) being fixed on the outer wall of the connection shaft (293).

6. The replacement tool for the inner air pipe of a drag chain according to claim 1, characterized in that The base component (100) further includes a frame (110), and the drag chain body (120) is disposed on the frame (110).

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