Safe and efficient rail changer

Abstract

The utility model belongs to the technical field of track maintenance, and particularly relates to a safe and efficient track changer which comprises an installation shaft, a supporting seat, an adjusting fence and a lifting hook, the installation shaft is installed on the top of the supporting seat through a bearing, a support is fixedly installed at the top end of the installation shaft and is of a U-shaped structure, and a supporting assembly is fixedly arranged on the inner side of the support. The outer side of the supporting assembly is rotationally sleeved with a pry bar, a positioning assembly is installed at one end of the pry bar, an adjusting fence is installed at the other end of the pry bar, and a lifting hook is installed on the adjusting fence. According to the lifting device, the pinch bar can be positioned, continuous force application by hands is not needed, stable lifting of an old rail is guaranteed conveniently, accidental falling is avoided, the mounting shaft is connected with the bearing of the supporting seat, the old rail can be controlled to rotate conveniently after being lifted, the old rail is detached after being far away from the rail, a new rail can be replaced conveniently, the practicability of the device is higher, and rail replacement is more convenient.

Description

Technical Field

[0001] This utility model belongs to the field of track maintenance technology, and in particular relates to a safe and efficient track changer. Background Technology

[0002] Railway tracks are an important component of railway lines, mainly composed of steel rails, sleepers, connecting parts, ballast, anti-creep devices, and turnouts. As railway tracks age, they will suffer varying degrees of damage. To eliminate safety hazards, rail changers are needed to perform rail replacement operations.

[0003] Chinese utility model patent with announcement number CN220846887U discloses a safe and efficient rail changer that allows operators to stay away from the rails, making it safer. It also has a simple structure, small weight, lower cost, and is more convenient to install and use. It does not require other power assistance and has higher stability.

[0004] Based on research and practical experience in track maintenance, the existing technology described above has some shortcomings: after lifting the old rail, continuous manual force is required, which can easily lead to fatigue; furthermore, the device lacks a rotation function, making it difficult to control the direction and unload the old rail after lifting, thus affecting the subsequent installation of new rails. Therefore, there is an urgent need to improve the existing rail changer and provide a safe and efficient rail changer. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by providing a track changer that is reasonably designed, simple in structure, has positioning and steering functions, and is more convenient to use, thereby solving the problems existing in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A safe and efficient rail changer includes a mounting shaft, a support base, an adjusting rail, and a hook. The mounting shaft is bearing-mounted on the top of the support base. A bracket is fixedly mounted on the top of the mounting shaft. The bracket has a "U"-shaped structure and a support component is fixedly mounted on its inner side. A pry bar is rotatably sleeved on the outer side of the support component. A positioning component is mounted on one end of the pry bar, and an adjusting rail is mounted on the other end of the pry bar. A hook is mounted on the adjusting rail.

[0008] In a preferred embodiment, the support assembly includes a fixed shaft, a positioning plate, and positioning grooves. The fixed shaft is fixedly installed at the inner middle position of the bracket, and the positioning plate is fixedly sleeved on the outer side of the middle part of the fixed shaft. Multiple positioning grooves are formed at equal angles on the outer edge of the left end of the positioning plate.

[0009] In a preferred embodiment, the fixed shaft and the pry bar are connected by a bearing connection, and a groove is provided at the bottom of the end of the pry bar that has a positioning component.

[0010] In a preferred embodiment, the positioning assembly includes a slide rod, a support spring, a support rod, and a handle. The slide rod is slidably installed inside the left end of the pry bar. A support spring is fixedly connected between the left end of the slide rod and the pry bar. The bottom of the left end of the slide rod has a protrusion that engages and slides in a groove. The bottom end of the protrusion is hinged to a support rod, and the bottom end of the support rod is hinged to a handle. One end of the handle is hinged to the pry bar.

[0011] In a preferred embodiment, the right end of the slide bar is provided with a locking part, which is adapted to the positioning groove, and the locking part is inserted into the positioning plate through the positioning groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] In the solution of this utility model:

[0014] When changing rails, the handle can be squeezed and the slide bar can be pushed to the left by the support rod to compress the support spring. When the right end of the slide bar disengages from the positioning plate, the pry bar positioning can be released. Then, the old rail can be easily lifted by using the pry bar and lever principle. After lifting, the handle can be released. At this time, the support spring pushes the slide bar to reset, allowing the right end of the slide bar to be inserted into another positioning groove, thus achieving the positioning of the pry bar. No continuous force from the hand is required, which makes it easy to ensure the stable lifting of the old rail and avoid accidental falls. Moreover, the mounting shaft is connected to the support seat bearing, and after the old rail is lifted, it is easy to control its rotation and remove it away from the rail for easy replacement with a new rail. The device is more practical and makes rail changing more convenient. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. The drawings are described as follows:

[0016] Figure 1 This is a three-dimensional front view structural diagram of the present invention;

[0017] Figure 2 This is a front view sectional structural diagram of the mounting shaft and support base of this utility model;

[0018] Figure 3 This is a schematic diagram of the overall front cross-sectional structure of the support component of this utility model;

[0019] Figure 4 This is a top sectional view of the fixed shaft and pry bar structure of this utility model;

[0020] Figure 5 This is a bottom view of the overall structure of the positioning component of this utility model.

[0021] In the picture:

[0022] 1. Mounting shaft; 2. Support base; 3. Bracket; 4. Support assembly; 41. Fixed shaft; 42. Positioning plate; 43. Positioning groove; 5. Pry bar; 6. Adjustment bar; 7. Hook; 8. Slide groove; 9. Positioning assembly; 91. Slide rod; 92. Support spring; 93. Support rod; 94. Handle. Detailed Implementation

[0023] The embodiments described below are merely some embodiments of the present invention and do not represent all embodiments consistent with the present invention. Exemplary embodiments will now be described with reference to the accompanying drawings:

[0024] like Figure 1-5 As shown, the present invention provides a safe and efficient rail changer, which includes a mounting shaft 1, a support base 2, an adjusting rail 6, and a hook 7. The mounting shaft 1 is mounted on the top of the support base 2 with a bearing. A bracket 3 is fixedly mounted on the top of the mounting shaft 1. The bracket 3 has a "U" shaped structure and a support component 4 is fixedly mounted on its inner side. A pry bar 5 is rotatably sleeved on the outer side of the support component 4. A positioning component 9 is mounted on one end of the pry bar 5, and an adjusting rail 6 is mounted on the other end of the pry bar 5. A hook 7 is mounted on the adjusting rail 6.

[0025] Based on the above structure, the support component 4 includes a fixed shaft 41, a positioning plate 42 and a positioning groove 43. The fixed shaft 41 is fixedly installed in the middle of the inner side of the bracket 3. The positioning plate 42 is fixedly sleeved on the outer side of the middle of the fixed shaft 41. Multiple positioning grooves 43 are opened at equal angles on the outer edge of the left end of the positioning plate 42.

[0026] Based on the above structure, the connection between the fixed shaft 41 and the pry bar 5 is a bearing connection, and the bottom of the pry bar 5 with the positioning component 9 has a groove 8.

[0027] In this embodiment, the fixed shaft 41 facilitates the stable rotation adjustment of the pry bar 5, and the positioning plate 42 and the positioning groove 43 on its outer edge facilitate the positioning of the pry bar 5 by the positioning component 9.

[0028] Based on the above structure, the positioning component 9 includes a slide bar 91, a support spring 92, a support rod 93, and a handle 94. The slide bar 91 is slidably installed inside the left end of the pry bar 5. The support spring 92 is fixedly connected between the left end of the slide bar 91 and the pry bar 5. The bottom of the left end of the slide bar 91 is provided with a protrusion, which is engaged and slidably located in the slide groove 8. The bottom end of the protrusion is hinged to the support rod 93. The bottom end of the support rod 93 is hinged to the handle 94. One end of the handle 94 is hinged to the pry bar 5.

[0029] In this embodiment, by pinching the handle 94, it is easy to control the support rod 93 to push the slide rod 91 to the left and squeeze the support spring 92. When the right end of the slide rod 91 is disengaged from the positioning plate 42, the positioning of the pry bar 5 can be released, making it easy to control the rotation of the pry bar 5.

[0030] Based on the above structure, the right end of the slide bar 91 is provided with a locking part, which is adapted to the positioning groove 43, and the locking part is inserted into the positioning plate 42 through the positioning groove 43.

[0031] In this embodiment, after the old rail is lifted, the handle 94 is released, which allows the slide bar 91 to return to its original position via the support spring 92. When the right end of the slide bar 91 is engaged in another positioning groove 43, the pry bar 5 can be positioned without the need for continuous hand force, thus ensuring the stable lifting of the old rail.

[0032] The working principle of this utility model is as follows:

[0033] In use, first adjust the position of the hook 7 on the adjustment bar 6 and install the hook 7 outside the old rail. Then, squeeze the handle 94, and the slide bar 91 can be pushed to the left by the support rod 93, so that the right end of the slide bar 91 is disengaged from the positioning plate 42, thus releasing the positioning of the pry bar 5. Then, the old rail can be lifted with less effort by using the pry bar 5 and lever principle. After lifting, the handle 94 can be released. At this time, the support spring 92 can push the slide bar 91 to the right to reset, and the right end of the slide bar 91 is inserted into another positioning groove 43, thus realizing the positioning of the pry bar 5. There is no need to apply continuous force by hand, which makes it easy to ensure the stable lifting of the old rail and avoid the old rail from falling accidentally.

[0034] Since the mounting shaft 1 is connected to the bearing of the support seat 2, after the old rail is lifted and positioned, it is also convenient to control the bracket 3 to drive the old rail to rotate and change direction, making it easy to control the old rail away from the track and remove it, thus facilitating the replacement of the new rail. The device is more practical and the rail replacement is more convenient.

[0035] It should be noted that the adjustment bar 6 and hook 7 in this device are existing finished products in the prior art documents. Their specific structure and usage methods are disclosed in the prior art documents and are not the key innovation direction of this case, so they will not be described in detail.

[0036] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any equivalent changes, modifications, substitutions, and variations made by those skilled in the art based on the concept of this utility model and on the basis of existing technology through logical analysis, reasoning, or limited experiments shall be within the scope of protection defined by the claims.

Claims

1. A safe and efficient rail changer comprising a mounting shaft (1), a supporting seat (2), an adjusting column (6) and a hook (7), characterized in that: The mounting shaft (1) bearing is mounted on the top of the support base (2), the top end of the mounting shaft (1) is fixedly provided with a support (3), the support (3) is a "U" shaped structure and the inner side is fixedly provided with a support assembly (4), the outer side of the support assembly (4) is rotatably sleeved with a crowbar (5), one end of the crowbar (5) is provided with a positioning assembly (9), the other end of the crowbar (5) is provided with an adjusting column (6), and the adjusting column (6) is provided with a hook (7).

2. A safe and efficient rail changer as claimed in claim 1, wherein: The support assembly (4) comprises a fixed shaft (41), a positioning disc (42) and a positioning groove (43), the fixed shaft (41) is fixedly installed at the inner side middle position of the support (3), the outer side of the middle part of the fixed shaft (41) is fixedly sleeved with the positioning disc (42), and the left end of the positioning disc (42) is provided with a plurality of positioning grooves (43) at equal angles.

3. A safe and efficient rail changer according to claim 2, characterized in that: The connecting mode of the fixed shaft (41) and the crowbar (5) is bearing connection, and the bottom of one end of the crowbar (5) provided with the positioning assembly (9) is provided with a sliding groove (8).

4. A safe and efficient rail changer according to claim 3, characterized in that: The positioning assembly (9) comprises a sliding rod (91), a supporting spring (92), a support rod (93) and a handle (94), the sliding rod (91) is slidably installed in the left end of the crowbar (5), the supporting spring (92) is fixedly connected between the left end of the sliding rod (91) and the crowbar (5), the left end of the sliding rod (91) is provided with a protruding portion, the protruding portion is slidably located in the sliding groove (8), the bottom end of the protruding portion is hingedly installed with the support rod (93), the bottom end of the support rod (93) is hingedly installed with the handle (94), and one end of the handle (94) is hingedly connected with the crowbar (5).

5. A safe and efficient rail changer as claimed in claim 4, wherein: The right end of the sliding rod (91) is provided with a clamping portion, the clamping portion is matched with the positioning groove (43), and the clamping portion is inserted with the positioning disc (42) through the positioning groove (43).

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