Ratchet wheel for railway contact net

Abstract

The utility model discloses a ratchet wheel for a railway overhead line system, which relates to the technical field of ratchet wheels and comprises a ratchet wheel, two rotating arms are arranged on one side of the ratchet wheel, the ratchet wheel is rotatably mounted on the side parts, close to each other, of the two rotating arms, and round holes are formed in the side parts, close to each other, of the two rotating arms. Cylinders are rotationally mounted in the two round holes, and the two ends of each cylinder extend out of the corresponding round hole. The device is reasonable in structure, fixation of the short column and the long column is removed through the fixing mechanism, then the long column is pulled, the two cylinders are made to be far away from each other through the rotating mechanism, then the two cylinders are aligned to two mounting holes in a mounting plate which is mounted in advance, operation is conducted oppositely, and the two cylinders are separated from each other. The two cylinders get close to each other and enter the two mounting holes respectively, then the two cylinders are fixed through the fixing mechanism to complete mounting, the two cylinders, the short column and the long column cannot move in the rotating process of the two rotating arms after mounting, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of ratchets, in particular to a ratchet for railway contact network. Background Art

[0002] The existing contact network ratchet is usually fixed on the mounting frame as a whole by means of a screw rod and a screw. The prior art publication number CN212709055U discloses a railway contact network ratchet, whose swing arm is fixed to the mounting frame by a threaded connection. Since the ratchet can be rotated on the swing arm, the thread is easy to loosen during use, which is inconvenient to use. Therefore, this application discloses a railway contact network ratchet to meet people's needs. Utility Model Content

[0003] The purpose of the present application is to provide a ratchet for railway contact network to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a ratchet for a railway contact network, comprising a ratchet, two swing arms are provided on one side of the ratchet, the ratchet is rotatably installed on the sides of the two swing arms that are close to each other, the sides of the two swing arms that are close to each other are each provided with a circular hole, a cylinder is rotatably installed in the two circular holes, both ends of the cylinder extend out of the circular hole, a long column and a short column are respectively fixedly installed on the ends of the two cylinders that are away from each other, a moving column is fixedly installed on the ends of the short column and the long column that are away from the cylinder, a rectangular hole is provided on the sides of the two swing arms that are close to each other, the two moving columns respectively penetrate the two rectangular holes, a fixing plate is fixedly installed on the sides of the two swing arms that are close to each other, a rotating mechanism is installed on the fixing plate, the rotating mechanism is installed in cooperation with the two moving columns, a fixing mechanism is installed on the two swing arms, and the fixing mechanism is installed in cooperation with the short column and the long column.

[0005] Preferably, the rotating mechanism includes a rotating hole opened on the side of the fixed plate, a rotating column is rotatably installed in the rotating hole, pressure rods are fixedly installed on both sides of the two movable columns, four extrusion frames are fixedly installed on the side of the rotating column, and the four pressure rods respectively pass through the four extrusion frames.

[0006] Preferably, a gap is left between the inner wall of the extrusion frame away from the rotating column and the side of the pressure rod away from the rotating column.

[0007] Preferably, the extrusion frame is close to the side of the fixing plate and contacts the side of the fixing plate.

[0008] Preferably, the fixing mechanism includes rectangular holes respectively opened on the sides of the two swing arms, sliding rods are fixedly installed on the inner walls on both sides of the rectangular holes, extrusion columns are slidably sleeved on the two sliding rods, and short clamping columns and long clamping columns are fixedly installed on the extrusion columns near the sides of the long columns.

[0009] Preferably, the ends of the long column and the short column away from the cylinder are both provided with a slot, and the ends of the long clamping column and the short clamping column close to the cylinder extend into the two slots respectively.

[0010] Preferably, a spring is sleeved on the sliding rod, one end of the spring is fixedly connected to the side of the extrusion column, and the other end of the spring is fixedly mounted on the inner wall of the rectangular hole.

[0011] In summary, the technical effects and advantages of the utility model are:

[0012] The utility model has a reasonable structure. The short column and the long column are released from fixation by a fixing mechanism, and then the long column is pulled to move the two cylinders away from each other by a rotating mechanism. Then the two cylinders are aligned with two mounting holes on a pre-installed mounting plate. The opposite operation is performed to make the two cylinders approach each other and enter the two mounting holes respectively. Then the installation is completed by fixing them by the fixing mechanism. After installation, the two swing arms will not cause the two cylinders, the short column and the long column to move during the rotation process, so the utility model is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0014] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of the present application;

[0015] Figure 2 For the embodiments of this application Figure 1 A schematic diagram of the first-person perspective stereoscopic structure of the middle part structure;

[0016] Figure 3 For the embodiments of this application Figure 1 A schematic diagram of the second-view stereoscopic structure of the middle part structure;

[0017] Figure 4 This is a cross-sectional view of the connection between the mounting block, convex column, and limiting nut according to an embodiment of the present application.

[0018] In the figure: 1. ratchet; 2. swing arm; 3. cylinder; 4. long column; 5. short column; 6. moving column; 7. fixed plate; 8. rotating column; 9. extrusion frame; 10. pressure rod; 11. sliding rod; 12. extrusion column; 13. spring; 14. short clamping column; 15. long clamping column. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Example 1

[0021] refer to Figure 1-Figure 4 A ratchet for a railway contact network shown in the figure comprises a ratchet 1, two swing arms 2 are arranged on one side of the ratchet 1, the ratchet 1 is rotatably installed on the sides of the two swing arms 2 that are close to each other, the sides of the two swing arms 2 that are close to each other are provided with circular holes, cylinders 3 are rotatably installed in the two circular holes, both ends of the cylinders 3 extend out of the circular holes, a long column 4 and a short column 5 are fixedly installed on the ends of the two cylinders 3 that are away from each other, and a moving column 6 is fixedly installed on the ends of the short column 5 and the long column 4 that are away from the cylinder 3, a rectangular hole is arranged on the sides of the two swing arms 2 that are close to each other, and the two moving columns 6 respectively penetrate the two rectangular holes, a fixing plate 7 is fixedly installed on the sides of the two swing arms 2 that are close to each other, a rotating mechanism is installed on the fixing plate 7, the rotating mechanism is installed in cooperation with the two moving columns 6, a fixing mechanism is installed on the two swing arms 2, and the fixing mechanism is installed in cooperation with the short column 5 and the long column 4. When the installation begins, the mounting plate is installed. The installation process of the mounting plate can refer to the installation method of the mounting plate with publication number CN212709055U in the prior art. A circular mounting hole is opened on the mounting plate for mounting the cylinder 3.

[0022] By means of the above structure: the short column 5 and the long column 4 are released by the fixing mechanism, and then the long column 4 is pulled, and the two cylinders 3 are moved away from each other by the rotating mechanism, and then the two cylinders 3 are aligned with the two mounting holes on the pre-installed mounting plate, and the opposite operation is performed to make the two cylinders 3 approach each other and enter the two mounting holes respectively, and then the installation is completed by fixing them by the fixing mechanism. After installation, the two swing arms 2 will not cause the two cylinders 3, the short column 5 and the long column 4 to move during the rotation process, which is convenient for use.

[0023] Example 2

[0024] The rotating mechanism includes a rotating hole opened on the side of the fixed plate 7, in which a rotating column 8 is rotatably installed, and pressure rods 10 are fixedly installed on both sides of the two movable columns 6. Four extrusion frames 9 are fixedly installed on the side of the rotating column 8, and the four pressure rods 10 respectively penetrate the four extrusion frames 9; there is a gap between the inner wall of the extrusion frame 9 away from the rotating column 8 and the side of the pressure rod 10 away from the rotating column 8, and the side of the extrusion frame 9 close to the fixed plate 7 is in contact with the side of the fixed plate 7. The advantage of this arrangement is that it is easy to limit the rotating column 8 so that it can only rotate. The cylinder 3 can be moved by pulling the long column 4. The movement of the long column 4 drives the moving column 6 to move. The movement of the moving column 6 drives the two compression rods 10 to rotate. The two compression rods 10 rotate to squeeze the inner walls of the two extrusion frames 9, thereby causing the rotating column 8 to rotate. The rotation of the rotating column 8 drives the other two extrusion frames 9 to rotate. The other two extrusion frames 9 squeeze the inner walls of the other two compression rods 10, thereby causing the other moving column 6 to move in the opposite direction of the long column 4, thereby causing the short column 5 to move, and then causing the other cylinder 3 to move.

[0025] The fixing mechanism includes rectangular holes respectively opened on the sides of the two swing arms 2, and a slide bar 11 is fixedly installed on the inner walls of the two sides of the rectangular hole. The two slide bars 11 are slidably sleeved with a squeeze column 12, and the squeeze column 12 is fixedly installed with a short clamping column 14 and a long clamping column 15 near the side of the long column 4; the long column 4 and the short column 5 are both provided with a clamping groove at one end away from the cylinder 3, and the long clamping column 15 and the short clamping column 14 are respectively extended into the two clamping grooves at one end near the cylinder 3; the slide bar 11 is sleeved with a spring 13, one end of the spring 13 is fixedly connected to the side of the squeeze column 12, and the other end of the spring 13 is fixedly installed on the inner wall of the rectangular hole. When in use, the short clamping column 14 and the long clamping column 15 can be driven to move out of the two clamping grooves by pulling the squeeze column 12, and the spring 13 is deformed. After installation, the long column 4 and the short column 5 are fixed due to the reaction force of the spring 13, thereby completing the limit, which is convenient for quick installation.

[0026] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A ratchet for a railway contact network, comprising a ratchet (1), characterized in that: Two rotary arms (2) are arranged on one side of the ratchet (1). The ratchet (1) is rotatably mounted on the sides of the two rotary arms (2) close to each other. The sides of the two rotary arms (2) close to each other are both provided with circular holes. A cylinder (3) is rotatably mounted in each of the two circular holes. Both ends of the cylinder (3) extend out of the circular holes. A long column (4) and a short column (5) are fixedly mounted on the ends of the two cylinders (3) away from each other. The short column (5) and the long column (4) are away from the cylinder (3). A movable column (6) is fixedly installed at one end, and rectangular holes are opened on the sides of the two swing arms (2) close to each other. The two movable columns (6) respectively penetrate the two rectangular holes. A fixing plate (7) is fixedly installed on the sides of the two swing arms (2) close to each other. A rotating mechanism is installed on the fixing plate (7). The rotating mechanism is installed in cooperation with the two movable columns (6). A fixing mechanism is installed on the two swing arms (2). The fixing mechanism is installed in cooperation with the short column (5) and the long column (4).

2. A ratchet for railway contact network according to claim 1, characterized in that: The rotating mechanism comprises a rotating hole opened on the side of the fixed plate (7), a rotating column (8) is rotatably installed in the rotating hole, pressure rods (10) are fixedly installed on both sides of the two movable columns (6), four extrusion frames (9) are fixedly installed on the side of the rotating column (8), and the four pressure rods (10) respectively penetrate the four extrusion frames (9).

3. A ratchet for railway contact network according to claim 2, characterized in that: A gap is left between the inner wall of the extrusion frame (9) away from the rotating column (8) and the side of the pressure rod (10) away from the rotating column (8).

4. A ratchet for railway contact network according to claim 2, characterized in that: The pressing frame (9) is close to the side of the fixing plate (7) and contacts the side of the fixing plate (7).

5. The ratchet for railway contact network according to claim 1, characterized in that: The fixing mechanism comprises rectangular holes respectively opened on the sides of the two swing arms (2), sliding rods (11) are fixedly installed on the inner walls of the two sides of the rectangular holes, and extrusion columns (12) are slidably sleeved on the two sliding rods (11), and the extrusion columns (12) are fixedly installed with short clamping columns (14) and long clamping columns (15) near the sides of the long columns (4).

6. A ratchet for railway contact network according to claim 5, characterized in that: The ends of the long column (4) and the short column (5) away from the cylinder (3) are both provided with a slot, and the ends of the long clamping column (15) and the short clamping column (14) close to the cylinder (3) extend into the two slots respectively.

7. A ratchet for railway contact network according to claim 5, characterized in that: A spring (13) is sleeved on the slide bar (11), one end of the spring (13) is fixedly connected to the side of the extrusion column (12), and the other end of the spring (13) is fixedly mounted on the inner wall of the rectangular hole.

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