Short pipe dismounting tool in subway brake pipeline

Abstract

The utility model discloses a dismounting tool for a short pipe in a metro brake pipeline, which relates to the technical field of dismounting tools and comprises a hollow cylinder, a push rod is mounted in the cylinder, and one end of the push rod extends to the right end of the cylinder and is fixedly provided with a knob; a plurality of connecting rods are circumferentially and movably mounted at the left end of the push rod at equal intervals, and a clamping rod is movably mounted at one end of each connecting rod. The clamping rods are telescopic and can be matched with short pipes with different diameters, after the clamping rods are opened to a proper range, the threaded sleeves are rotated to drive the clamping plates to move towards the right ends of the short pipes, the clamping plates tightly abut against the right ends of the short pipes, and at the moment, under the cooperation of the clamping plates and the clamping rods, the short pipes are clamped and fixed; and then a tool is used for rotating the torsion block to drive the barrel body to rotate, the barrel body drives the short pipe to rotate together through the clamping plate and the clamping rod, and therefore the short pipe can be disassembled, and the tool can disassemble the short pipes with different diameters and has high flexibility.

Description

Technical Field

[0001] The utility model relates to the technical field of disassembly tools, in particular to a disassembly tool for a short pipe in a subway brake pipeline. Background Art

[0002] At present, the subway vehicle braking system mainly adopts air brake, and compressed air is transported through the pipeline under the vehicle. Due to the installation of various complex electrical equipment under the vehicle and various conditions, the layout of the braking system pipeline is relatively complicated. There is a short pipe in the braking system pipeline, which is characterized by full connection threads throughout the entire length.

[0003] After searching, the patent with the authorization announcement number CN 213197349 U discloses a short pipe disassembly tool in the subway brake pipeline, the end cover is connected with the connecting sleeve through a left-handed thread, the other end of the connecting sleeve is connected with the short pipe thread, a pressure plate is installed in the connecting sleeve, a threaded hole is processed at the center of the end face of the end cover, the clamping bolt passes through the threaded hole of the end cover into the inside of the connecting sleeve so that the end face of the clamping bolt presses on the pressure plate, the connecting sleeve is connected with the short pipe thread, and the processing length of the thread of the connecting sleeve is less than the standard length. The utility model can disassemble the short pipe from the pipe joint without damaging the connecting thread of the short pipe, thereby ensuring the maintenance progress and saving the maintenance cost.

[0004] Although the above-mentioned device can effectively disassemble the short pipe, it has poor flexibility and the connecting sleeve cannot be adjusted, so it can only be connected to the matching short pipe and is difficult to be used for disassembling short pipes of other specifications. Therefore, in order to solve the above-mentioned problems, we propose a short pipe disassembly tool in the subway brake line. Utility Model Content

[0005] The utility model aims to solve the defects in the prior art and proposes a short pipe disassembly tool in a subway brake pipeline.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A short pipe disassembly tool in a subway brake pipeline comprises a hollow cylinder, a push rod is installed inside the cylinder, one end of the push rod extends to the right end of the cylinder and is fixedly installed with a knob;

[0008] A plurality of connecting rods are movably mounted in an equidistant circle on the left end of the push rod, a clamping rod is movably mounted on one end of each of the connecting rods, and one end of each of the clamping rods penetrates the cylinder and extends to the outside of the cylinder;

[0009] The outer surface of the cylinder is provided with threads, a threaded sleeve is installed on the outer thread of the cylinder, and a clamping plate is fixedly installed on the left end of the threaded sleeve.

[0010] Furthermore, a thread is provided on the right side of the outer surface of the push rod, and the right side of the outer surface of the push rod is threadedly connected to the right end of the cylinder.

[0011] Furthermore, an anti-slip pad is fixedly installed on the left side of the clamping plate.

[0012] Furthermore, an arc strip is fixedly mounted on one end of the clamping rod away from the push rod.

[0013] Furthermore, a torsion block is fixedly installed on the right end of the cylinder, and the torsion block, the knob and the threaded sleeve are all equilateral hexagonal prism structures.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The clamping rod of the utility model is retractable and can adapt to short tubes of different diameters. After the clamping rod is opened to an appropriate range, the clamping plate is driven to move toward the right end of the short tube by rotating the threaded sleeve, so that the clamping plate and the right end of the short tube are tightly in contact. At this time, with the cooperation of the clamping plate and the clamping rod, the short tube will be clamped and fixed. Thereafter, the torsion block can be rotated by using a tool to drive the cylinder to rotate. The cylinder will drive the short tube to rotate together through the clamping plate and the clamping rod, thereby realizing the disassembly of the short tube. The tooling can disassemble short tubes of different diameters and has high flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0017] Figure 1 It is one of the three-dimensional diagrams of the utility model;

[0018] Figure 2 This is the second stereogram of the utility model;

[0019] Figure 3 It is a partial structural schematic diagram of the utility model;

[0020] Figure 4 It is a partial cross-sectional view of the utility model.

[0021] In the figure: 1. Cylinder; 2. Push rod; 3. Torsion block; 4. Knob; 5. Threaded sleeve; 6. Clamping plate; 7. Clamping rod; 8. Connecting rod. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention;

[0023] Reference Figure 1-4A short pipe disassembly tool in a subway brake pipeline comprises a hollow cylinder 1, a push rod 2 is installed inside the cylinder 1, one end of the push rod 2 extends to the right end of the cylinder 1 and is fixedly installed with a knob 4; a thread is provided on the right side of the outer surface of the push rod 2, and the right side of the outer surface of the push rod 2 is threadedly connected with the right end of the cylinder 1; a plurality of connecting rods 8 are equidistantly and circumferentially movably installed on the left end of the push rod 2, a clamping rod 7 is movably installed on one end of the plurality of connecting rods 8, and one end of the plurality of clamping rods 7 passes through the cylinder 1 and extends to the outside of the cylinder 1; a thread is provided on the outer surface of the cylinder 1, a threaded sleeve 5 is threadedly installed on the outer side of the cylinder 1, and a clamping plate 6 is fixedly installed on the left end of the threaded sleeve 5.

[0024] When the short tube in the subway brake pipeline needs to be disassembled, first extend the left end of the cylinder 1 into the short tube so that the left end of the cylinder 1 passes through the short tube, and then rotate the knob 4 to move the push rod 2 toward the left end of the cylinder 1. The push rod 2 will push the clamping rod 7 outward through the connecting rod 8 until the clamping rod 7 is extended so that the cylinder 1 cannot be pulled out of the short tube;

[0025] After the clamping rod 7 is extended to a suitable range, the clamping plate 6 is driven to move toward the right end of the short tube by rotating the threaded sleeve 5, so that the clamping plate 6 and the right end of the short tube are tightly in contact. At this time, the short tube will be clamped and fixed under the cooperation of the clamping plate 6 and the clamping rod 7. Then, the torsion block 3 is rotated by using a tool to drive the cylinder 1 to rotate. The cylinder 1 will drive the short tube to rotate together through the clamping plate 6 and the clamping rod 7, so that the short tube can be disassembled;

[0026] Through the above method, the tooling can disassemble short pipes of different diameters and has high flexibility.

[0027] An anti-skid pad is fixedly installed on the left side of the clamping plate 6. An arc strip is fixedly installed on the end of the clamping rod 7 away from the push rod 2;

[0028] The anti-skid pad can increase the friction between the contact surface of the clamping plate 6 and the short tube, and the arc strip can increase the contact area between the clamping rod 7 and the short tube, thereby increasing the friction between the clamping rod 7 and the short tube.

[0029] A torsion block 3 is fixedly installed on the right end of the cylinder 1. The torsion block 3, knob 4 and threaded sleeve 5 are all equilateral hexagonal prism structures. The hexagonal prism structure makes it easy for the user to use tools such as wrenches to rotate the torsion block 3, knob 4 and threaded sleeve 5.

Claims

1. A short pipe disassembly tool in a subway brake pipeline, comprising a hollow cylinder (1), characterized in that: A push rod (2) is installed inside the cylinder (1), one end of the push rod (2) extends to the right end of the cylinder (1) and is fixedly mounted with a knob (4); A plurality of connecting rods (8) are movably mounted in an equidistant circle on the left end of the push rod (2), a clamping rod (7) is movably mounted on one end of each of the connecting rods (8), and one end of each of the clamping rods (7) penetrates the cylinder (1) and extends to the outside of the cylinder (1); The outer surface of the cylinder (1) is provided with threads, a threaded sleeve (5) is installed on the outer thread of the cylinder (1), and a clamping plate (6) is fixedly installed on the left end of the threaded sleeve (5).

2. The short pipe disassembly tool in the subway brake pipeline according to claim 1 is characterized in that: The right side of the outer surface of the push rod (2) is provided with a thread, and the right side of the outer surface of the push rod (2) is threadedly connected to the right end of the cylinder (1).

3. The short pipe disassembly tool in the subway brake pipeline according to claim 1 is characterized in that: An anti-slip pad is fixedly mounted on the left side of the clamping plate (6).

4. The short pipe disassembly tool in the subway brake pipeline according to claim 1 is characterized in that: An arc strip is fixedly mounted on one end of the clamping rod (7) away from the push rod (2).

5. The short pipe disassembly tool in the subway brake pipeline according to claim 1 is characterized in that: A torsion block (3) is fixedly mounted on the right end of the cylinder (1); the torsion block (3), the knob (4) and the threaded sleeve (5) are all equilateral hexagonal prism structures.

Images