Limiting adjusting mechanism

Abstract

The utility model provides a limit adjusting mechanism, which belongs to the technical field of flat cars and comprises a limit switch which is arranged on a rail type flat car through a sliding component and can move up and down. The height adjusting structure is arranged on the rail type flat car and used for pulling the limiting switch to move up and down and adjusting the height position of the limiting switch, and the height adjusting structure comprises a drawing wire with one end fixedly connected to the limiting switch. The limiting switch can move up and down by arranging the sliding assembly, the pull wire is arranged, one end of the pull wire is fixedly connected to the limiting switch, an operator can adjust the height position of the limiting switch by pulling the pull wire, and the height position of the limiting switch can be adjusted when the height position of the limiting switch needs to be adjusted. The height position of the limit switch can be adjusted without dismounting the limit switch and then mounting the limit switch, and the limit switch is pulled by the drawing wire and is not limited by space, so that the work of operators is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of flatbed trucks, in particular to a limit adjusting mechanism. Background Art

[0002] In the production process of metal products, it is necessary to transfer semi-finished metal products to the next process for processing. Usually, a rail flatbed truck is set up at the production site to transfer the semi-finished metal products. During the transfer, after placing the semi-finished metal products on the rail flatbed truck, the operator will control the movement of the rail flatbed truck through the control system. To ensure that the rail flatbed truck moves within its predetermined range, a limit switch is usually set on the rail flatbed truck. The limit switch is electrically connected to the control system. By setting the limit switch, the position detection of the rail flatbed can be realized, so that the rail flatbed truck moves back and forth within the predetermined range.

[0003] The current limit switch is generally directly fixed under the rail flatbed truck through a mounting plate. When it is necessary to adjust the height position of the limit switch (height position: the height of the limit switch perpendicular to the ground), it is necessary to remove the mounting plate, adjust the position of the mounting plate and then fix the mounting plate again, so as to realize the adjustment of the height position of the limit switch, which is very troublesome; and because the distance between the body of the rail flatbed truck and the ground is generally small, therefore, when removing and installing the limit switch, due to limited space, it is not easy to remove and install the limit switch. Summary of the Invention

[0004] In view of this, the utility model provides a limit adjusting mechanism to solve the problem of adjusting the height position of the limit switch on the rail flatbed truck.

[0005] To solve the above technical problems, the limit adjusting mechanism provided by the utility model adopts the following technical scheme:

[0006] A limit adjusting mechanism includes a limit switch that is arranged on a rail flatbed truck through a sliding component and can move up and down, and further includes a height adjusting structure arranged on the rail flatbed truck for pulling the limit switch to move up and down and adjusting the height position of the limit switch. The height adjusting structure includes a wire rope whose one end is fixedly connected to the limit switch, and the other end of the wire rope passes through the rail flatbed truck and extends outside the rail flatbed truck. Pulling the wire rope can drive the limit switch to move up and down. A fixing structure is arranged on the outer side surface of the rail flatbed truck for fixing one end of the wire rope located outside the rail flatbed truck.

[0007] Furthermore, the sliding assembly includes a mounting plate fixedly connected to the bottom of the rail-type flatbed truck. A slide rail is provided on the downward-facing side of the mounting plate. A slider is slidably connected to the slide rail. The limit switch is fixedly installed on the slider. A through hole one is opened on the mounting plate. After one end of the wire drawing is fixedly connected to the limit switch, the through hole one allows the other end of the wire drawing to pass through the mounting plate.

[0008] Furthermore, the fixing structure includes a fixed seat fixedly connected to the side of the rail-type flatbed truck. On the outward-facing side of the fixed seat, a first boss seat and a second boss seat are symmetrically arranged at intervals. A first clamping plate is fixedly connected to the side of the first boss seat facing the second boss seat. Guide posts are arranged at intervals on both sides corresponding to the first clamping plate between the first boss seat and the second boss seat. A second clamping plate that can move on the guide posts is sleeved on the guide posts. A return spring for pushing the second clamping plate to reset is sleeved on the guide posts. A through hole two for allowing the other end of the wire drawing to pass through is opened at the geometric center of the fixed seat. Arc-shaped grooves for clamping the wire drawing are respectively opened on the corresponding sides of the first clamping plate and the second clamping plate. When the first clamping plate and the second clamping plate approach each other, one end of the wire drawing extending outside the rail-type flatbed truck can be clamped, thereby limiting the height position of the adjusted limit switch. The second boss seat is provided with a limit structure for fixing the position of the second clamping plate after clamping the wire drawing.

[0009] Furthermore, the limit structure includes a fixing plate fixedly connected to the outward-facing side of the second boss seat. A connecting plate is fixedly connected to the side of the fixing plate. A through hole three is opened on the connecting plate. A movable column is inserted into the through hole three. A limit block is fixedly connected to the end of the movable column facing the fixed seat. A limit spring is sleeved on the movable column between the limit block and the connecting plate. A pull plate for pulling the movable column to move is fixedly connected to the other end of the movable column.

[0010] Furthermore, an adjusting spring is fixedly connected to the upward-facing side of the mounting plate at the through hole one. One end of the adjusting spring is fixedly connected to a guide tube. The wire drawing passes through the mounting plate through the through hole one and penetrates into the adjusting spring and the guide tube. The wire drawing extends outside the rail-type flatbed truck through the adjusting spring and the guide tube.

[0011] Furthermore, a handle for facilitating the pulling of the second clamping plate is provided on the second clamping plate.

[0012] The above technical solutions of the present utility model at least include the following beneficial effects:

[0013] 1. By setting a sliding component, the limit switch can move up and down. A wire drawing is set, and one end of the wire drawing is fixedly connected to the limit switch. The operator can pull the wire drawing to adjust the height position of the limit switch. When the height position of the limit switch needs to be adjusted, there is no need to remove and reinstall the limit switch, and the adjustment of the height position of the limit switch can be achieved. Moreover, pulling through the wire drawing is not restricted by space, which facilitates the work of the operator.

[0014] 2. By setting a fixing structure, one end of the wire drawing can be fixed. After the position of the limit switch is pulled by the wire drawing, the position of the limit switch is determined at this time. To avoid the adjusted height position from changing, it is necessary to fix one end of the wire drawing. The fixing structure can fix the wire drawing after movement, and by fixing the wire drawing, it is ensured that the adjusted height position of the limit switch will not change. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood. In the drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0016] Figure 1 is a schematic three-dimensional structure diagram of the limit adjustment mechanism of the present invention installed on a rail flat car Figure 1 ;

[0017] Figure 2 is of the present invention Figure 1 is an enlarged structure diagram at A in the present invention;

[0018] Figure 3 is of the present invention Figure 1 is an enlarged structure diagram at B in the present invention;

[0019] Figure 4 is a schematic three-dimensional structure diagram of the limit adjustment mechanism of the present invention installed on a rail flat car Figure 2 ;

[0020] Figure 5 is of the present invention Figure 4 is an enlarged structure diagram at C in the present invention.

[0021] Description of the reference numerals:

[0022] 1. Vehicle body; 101. Vehicle frame; 102. Support beam; 2. Track wheel; 3. Limit adjustment mechanism; 301. Mounting plate; 302. Slide rail; 303. Slide block; 4. Limit switch; 5. Wire drawing; 6. First perforation; 7. Adjusting spring; 8. Guide tube; 9. Fixed seat; 10. First boss seat; 11. Second boss seat; 12. First clamping plate; 13. Guide post; 14. Second clamping plate; 15. Return spring; 18. Connecting plate; 19. Fixed plate; 20. Movable column; 21. Limit block; 22. Limit spring; 23. Pulling disc; 24. Handle. Detailed implementation mode

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present invention.

[0024] When it is necessary to adjust the height position of the limit switch 4, since the limit switch 4 is slidably assembled on the bottom of the rail flat car through a sliding assembly, and a wire drawing 5 is fixedly connected to the limit switch 4, the operator can adjust the height position of the limit switch 4 by pulling the wire drawing 5. After the adjustment is completed, one end of the wire drawing 5 can be fixed through a fixing structure, thus completing the adjustment of the height position of the limit switch 4. This adjustment method does not require disassembling the limit switch and is not limited by space.

[0025] After introducing the basic principle of the present invention, the various non-limiting implementation modes of the present invention will be specifically introduced below. The number of any element in the drawings is for illustration rather than limitation, and any naming is only for distinction and does not have any limiting meaning.

[0026] Next, with reference to several representative implementation modes of the present invention, the principle and spirit of the present invention will be elaborated in detail.

[0027] Embodiment of the limit adjustment mechanism provided by the present invention:

[0028] This limit adjustment mechanism is used by being installed on a rail flat car. Before introducing the limit adjustment mechanism, the rail flat car will be specifically introduced first, as Figure 1 shown, the rail flat car includes a vehicle body 1 and track wheels 2 arranged on the vehicle body 1 in a rectangular array. The vehicle body 1 includes a rectangular vehicle frame 101, and a plurality of support beams 102 are evenly arranged at intervals inside the vehicle frame 101. The above is the rail flat car on which the limit adjustment mechanism needs to be installed.

[0029] The following is a detailed introduction to the limit adjustment mechanism. As Figure 2 shown, the limit adjustment mechanism 3 includes a mounting plate 301 fixedly connected to the downward side of the vehicle frame 101. One end of the mounting plate 301 extends inwards and is located below the space between two adjacent support beams 102. A slide rail 302 is fixedly connected to the downward side of the mounting plate 301. A slider 303 is slidably connected to the slide rail 302. The limit switch 4 is fixedly connected to the slider 304, so that the limit switch 4 can move up and down through the slide rail 302 and the slider 303.

[0030] To facilitate the adjustment of the up and down movement of the limit switch 4, referring to Figure 2 shown, a wire 5 is fixedly connected to the limit switch 4. A first through hole 6 is opened on the side of the mounting plate 301 directly above the limit switch 4. And to facilitate the movement of the wire 5 and reduce the wear of the wire 5, further referring to Figure 5 shown, an adjusting spring 7 is fixedly connected to the upward side of the mounting plate 301 at the position of the first through hole 6. One end of the adjusting spring 7 is fixedly connected to a guide tube 8. To facilitate the operator to pull the wire 5 to adjust the limit switch 4, one end of the wire 5 fixedly connected to the limit switch 4 can pass through the first through hole 6, penetrate into the adjusting spring 7 and the guide tube 8, and pass through the support beam 102 and the vehicle frame 101 and extend out of the rail flat car. Through holes four (not shown in the figure) for the wire 5 to pass through are opened on the support beam 102 and the vehicle frame 101. Since the wire 5 will contact the inner peripheral surface of the guide tube 8 when being pulled, one end of the guide tube 8 will move slightly downward under the action of the adjusting spring 7, so that there will be no hard friction between the inner peripheral surface of the guide tube 8 and the wire 5. For example, if the guide tube 8 and the adjusting spring 7 are not provided and a guide tube with a bend is directly provided, that is, the adjusting spring 7 is directly replaced with a round tube fixedly connected to the guide tube 8. When pulling the wire 5, since the wire 5 will press the guide tube 8 inside the guide tube 8 to make the guide tube 8 move slightly downward, but since the straight tube will not bend, the wire 5 will form hard friction with the inside of the guide tube 8, causing serious wear to the wire 5. Therefore, the setting of the guide tube 8 and the adjusting spring 7 can reduce the wear of the wire.

[0031] When the wire 5 passes through the fourth through hole of the support beam 102, a fixing structure for fixing one end of the wire 5 located outside the rail flat car is provided on the outer side of the rail flat car. Referring to Figure 3As shown in the figure, the fixing structure includes a fixing seat 9 fixedly connected to the side surface of the rail flatbed. On the outer side surface of the fixing seat 9, a first boss seat 10 and a second boss seat 11 are symmetrically arranged at intervals. On the side surface of the first boss seat 10 facing the second boss seat 11, a first clamping plate 12 is fixedly connected. Between the first boss seat 10 and the second boss seat 11 and on both sides corresponding to the first clamping plate 12, guide posts 13 are arranged at intervals. A second clamping plate 14 that can move on the guide posts 13 is sleeved on the guide posts 13. A return spring 15 for pushing the second clamping plate 14 to reset is sleeved on the guide posts 13. A second through hole (not shown in the figure) for the other end of the wire drawing 5 to pass through is opened at the geometric center of the fixing seat 9. Arc-shaped grooves (not shown in the figure) for clamping the wire drawing 5 are respectively opened on the corresponding side surfaces of the first clamping plate 12 and the second clamping plate 14. When the first clamping plate 12 and the second clamping plate 14 approach each other, one end of the wire drawing 5 extending outside the rail flatbed can be clamped, so as to limit the height position of the adjusted limit switch. A limit structure for fixing the position of the second clamping plate 14 after clamping the wire drawing 5 is provided on the second boss seat 11.

[0032] Specifically, then refer to Figure 5 As shown in the figure, the limit structure includes a fixing plate 19 fixedly connected to the outer side surface of the second boss seat 11. A connecting plate 18 is fixedly connected to the side surface of the fixing plate 19. A third through hole (not shown in the figure) is opened on the connecting plate 18. A movable column 20 is inserted into the third through hole. A limit block 21 is fixedly connected to one end of the movable column 20 facing the fixing seat 9. A limit spring 22 is sleeved on the movable column 20 between the limit block 21 and the connecting plate 18. A pulling plate 23 for pulling the movable column 20 to move is fixedly connected to the other end of the movable column 20.

[0033] Furthermore, to facilitate the movement of the second clamping plate 14, a handle 24 for facilitating the pulling of the second clamping plate 14 is provided on the second clamping plate 14. The operator can easily pull the second clamping plate 14 to move through the handle 24.

[0034] Furthermore, after the operator pulls the wire drawing 5 to adjust the position of the limit switch 4, the operator pulls the handle 24 to make the second clamping plate 14 move towards the first clamping plate 12. The wire drawing 5 can be clamped through the provided arc-shaped groove. When the operator pulls the second clamping plate 14 to move to contact one side of the first clamping plate 12, at this time, under the action of the limit spring 22, the limit block 21 will be pushed into the gap between the second clamping plate 14 and the second boss seat 11. At this time, loosen the handle 24, and the second clamping plate 14 will remain stationary under the action of the limit block 21, so as to realize the clamping of the wire drawing 5 and ensure that the height position of the adjusted limit switch will not change.

[0035] Next, when it is necessary to adjust the wire drawing 5 again, the operator pulls the movable column 20 through the pulling plate 23 to pull out the limiting block 21 from between the second clamping plate 14 and the second boss seat 11. Then, under the action of the return spring 15, the second clamping plate 14 will return to the initial position. Then the operator loosens the pulling plate 23 so that the limiting block 21 abuts against the side surface of the second clamping plate 14. At this time, the wire drawing 5 is in an active state, and the operator can pull the wire drawing 5 at will to adjust the height position of the limit switch 4.

[0036] It should be noted that how the wire drawing 5 is specifically fixed to the limit switch 4 is a conventional technical means and will not be elaborated in detail here.

[0037] Based on the above description of this specification, those skilled in the art can also understand the following terms used. For example, terms indicating orientation or positional relationship such as "upper", "lower", "front", "rear", "left", "right", "width", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings of this specification. They are only for the purpose of facilitating the description of the solution of the present invention and simplifying the description, rather than explicitly or implicitly indicating that the device or element involved must have the specific orientation, be constructed and operated in the specific orientation. Therefore, the above terms of orientation or positional relationship cannot be understood or interpreted as a limitation to the solution of the present invention.

[0038] In addition, in the description of this specification, the meaning of "a plurality of" is at least two, such as two, three or more, etc., unless otherwise specifically defined.

Claims

1. A limit adjustment mechanism, characterized in that: It includes a limit switch which is arranged on a rail-type flatbed vehicle through a sliding component and can move up and down, and also includes a height adjustment structure which is arranged on the rail-type flatbed vehicle and is used to pull the limit switch up and down and adjust the height position of the limit switch. The height adjustment structure includes a wire drawing which is fixedly connected to the limit switch at one end, and the other end of the wire drawing passes through the rail-type flatbed vehicle and extends outside the rail-type flatbed vehicle. Pulling the wire drawing can drive the limit switch to move up and down. A fixing structure is provided on the outer side surface of the rail-type flatbed vehicle for fixing one end of the wire drawing located outside the rail-type flatbed vehicle.

2. The limit adjustment mechanism according to claim 1, characterized in that: The sliding assembly includes a mounting plate fixedly connected to the bottom of the rail-type flatbed vehicle, a slide rail is provided on the downward side of the mounting plate, a slider is slidably connected to the slide rail, the limit switch is fixedly installed on the slider, and a through hole is opened on the mounting plate. After one end of the drawing wire is fixedly connected to the limit switch, the through hole is used for the other end of the drawing wire to pass through the mounting plate.

3. The limit adjustment mechanism according to claim 2, characterized in that: The fixing structure includes a fixing seat fixedly connected to the side of the rail-type flatbed car, and a boss seat 1 and a boss seat 2 are symmetrically arranged on the outward side of the fixing seat, and a clamping plate 1 is fixedly connected to the side of the boss seat 1 facing the boss seat 2, and guide columns are arranged between the boss seat 1 and the boss seat 2 and on the two sides corresponding to the clamping plate 1. The guide column is provided with a clamping plate 2 that can move on the guide column, and the guide column is provided with a reset spring for pushing the clamping plate 2 to reset. A through hole 2 is provided at the geometric center of the fixing seat for the other end of the drawing to pass through, and arc grooves for clamping the wire are provided on the corresponding sides of the clamping plate 1 and the clamping plate 2. When the clamping plate 1 and the clamping plate 2 are close to each other, one end of the drawing extending out of the rail-type flatbed car can be clamped, so as to limit the height position of the limit switch after adjustment, and the boss seat 2 is provided with a limiting structure for fixing the position of the clamping plate 2 after clamping the wire.

4. The limit adjustment mechanism according to claim 3, characterized in that: The limiting structure includes a fixing plate fixedly connected to the outward side of the boss seat, a connecting plate fixedly connected to the side of the fixing plate, a through hole three is opened on the connecting plate, a movable column is inserted in the through hole three, a limiting block is fixedly connected to one end of the movable column facing the fixing seat, a limiting spring is sleeved on the movable column between the limiting block and the connecting plate, and a pull plate for pulling the movable column to move is fixedly connected to the other end of the movable column.

5. The limit adjustment mechanism according to claim 2, characterized in that: An adjusting spring is fixedly connected to a perforation on the upward side of the mounting plate, and one end of the adjusting spring is fixedly connected to a guide tube. The wire drawing passes through the perforation through the mounting plate and into the adjusting spring and the guide tube, and the adjusting spring and the guide tube are extended out of the rail-type flatbed vehicle.

6. The limit adjustment mechanism according to claim 3 or 4, characterized in that: The second clamping plate is provided with a handle for facilitating pulling of the second clamping plate.

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