Fabricated pedaling ladder stand for railway maintenance operation platform

Abstract

The utility model provides an assembly type pedaling ladder stand for a railway maintenance work platform, and belongs to the technical field of pedaling ladder stands. Comprising a stair part used for climbing; the platform part is stably connected with the highest position of the stair part, and the platform part is located on the side, away from the lowest position of the stair part, of the highest position of the stair part; and the multiple connecting blocks are stably connected to the stair part, mounting grooves are formed in the connecting blocks, and the connecting blocks are used for connecting the stair part and the platform part. Through the cooperation of the connecting block, the fixed block and all parts in the connecting block and the fixed block, the quick and convenient mounting and dismounting functions are achieved, and meanwhile through the cooperation of the check block, the movable block, the connecting rod and other structures, the problem that due to the resilience force of the spring, the fixed block ascends, and connection failure is possibly caused is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle-mounted ladders, in particular to an assembled vehicle-mounted ladder for a railway maintenance work platform. Background Art

[0002] The assembled step ladder used for railway maintenance work platforms is a tool designed to facilitate personnel boarding vehicles. It plays an important role in modern logistics and industry. This ladder is made of high-quality steel and is sturdy and durable. Its simple and elegant appearance and rust-proof surface ensure long-term use in various harsh environments. At the same time, the step spacing of the ladder has been carefully designed in accordance with ergonomic principles to ensure users feel comfortable and safe when climbing.

[0003] Existing assembled step ladders used for railway maintenance work platforms usually use bolts and other connecting parts to connect the components. However, when installing or disassembling the components, specific tools are often required to operate the bolts, which not only increases the complexity of the operation, but may also cause the disassembly and assembly work to be unable to proceed smoothly due to the lack or mismatch of tools. Moreover, after long-term use, the bolts are prone to rust, thread stripping and other problems, which further increases the difficulty of disassembly and assembly and affects work efficiency. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an assembled vehicle step ladder for a railway maintenance work platform, so as to solve the technical problem of inconvenience in installation and disassembly between components on the vehicle step ladder, and effectively prevent the connection failure that may be caused by the upward movement of the fixed block due to the spring rebound force.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] An assembled vehicle step ladder for a railway maintenance work platform comprises: a stair part for ascending; a platform part stably connected to the highest point of the stair part, the platform part being located on the side of the highest point of the stair part away from the lowest point of the stair part; a plurality of connecting blocks provided, and the plurality of connecting blocks stably connected to the stair part, the connecting blocks having mounting grooves provided therein, the connecting blocks being used to connect the stair part and the platform part; a plurality of fixing blocks provided, the fixing blocks being stably installed in the mounting grooves, the fixing blocks being used to fix the connecting blocks; a groove provided in the fixing block, And it is connected with the bottom of the fixed block; there are multiple triangular blocks, and the multiple triangular blocks are stably connected to the bottom of the mounting groove; there are multiple extrusion blocks, and the multiple extrusion blocks are respectively located on both sides of the triangular block, the extrusion blocks are in the mounting groove, the extrusion blocks are slidably connected to the fixed block, and the extrusion blocks are in contact with the triangular blocks; there are multiple clamping blocks, and the clamping blocks are located on the side of the extrusion blocks away from the triangular blocks, and the clamping blocks are used to fix the fixed blocks; the clamping slots are opened in the connecting block, and the clamping slots are adapted to the movable track of the clamping blocks, and the clamping slots are used to provide the clamping blocks The spring is located between the clamping block and the extrusion block, and the spring is stably installed in the fixed block. The spring is used to reset the clamping block, wherein the step width and height of the stair part meet the relevant ergonomic standards to provide a comfortable climbing experience; the edge of the platform part is provided with a protective railing, the height of which is not less than the prescribed safety standard to prevent users from accidentally falling; the number and distribution position of the connecting blocks are precisely calculated and designed to evenly share the connection stress between the stair part and the platform part; the size and shape of the fixed block are closely matched with the installation slot, and the tolerance during installation is controlled within an extremely small range to ensure the accuracy and reliability of the fixation; the angle and size of the triangular block are precisely designed to achieve the best extrusion effect on the extrusion block; the sliding track of the extrusion block is finely processed to ensure its smooth and accurate sliding; the movement stroke of the clamping block is strictly limited to prevent excessive extension or retraction; the depth and width of the clamping slot are slightly larger than the clamping block to ensure that the clamping block can be smoothly inserted without causing excessive gap; the elastic coefficient of the spring is precisely selected according to actual needs to provide appropriate reset force.

[0007] In a further embodiment, a slot is opened in the fixed block, and the slot is located directly above the groove, wherein the internal space of the slot is sufficient to accommodate related components such as the stop block and the movable block, and provide sufficient freedom for their movement; the inner wall of the slot is smoothed to reduce friction resistance when the components move.

[0008] In a further embodiment, the stopper is rotatably connected in the empty slot, and the stopper is used to limit the position of the fixed block, wherein the rotating shaft of the stopper is made of wear-resistant material and lubricated to ensure smooth and durable rotation; the rotation angle of the stopper can be limited to a specific range to meet the requirements of the fixed block position limitation.

[0009] In a further embodiment, the movable block is slidably connected to the stopper, and the movable block is used to drive the stopper to rotate, wherein the surface of the movable block is treated with anti-corrosion to prevent corrosion in a humid environment.

[0010] In a further embodiment, a connecting rod is stably connected to the top of the movable block, and one end of the connecting rod is stably connected to the movable block, and the other end passes through the top of the fixed block and is stably connected to a pull ring; two limiting rods are provided, and the limiting rods are stably connected to the bottom of the movable block, the spacing between the two limiting rods is greater than the width of the fixed block, and the two limiting rods are symmetrical through the vertical center line of the connecting rod, and the limiting rod is used to limit the rotation of the block, wherein the connecting rod is made of high-strength material to withstand the tension generated when the pull ring is operated; the connection method of the connecting rod to the movable block and the pull ring is a firm welding or threaded connection to ensure the reliability of the connection; the end of the limiting rod is rounded to avoid scratches or damage when in contact with other components; the length and diameter of the limiting rod are designed according to actual needs to provide sufficient limiting effect.

[0011] In a further embodiment, a limiting hole is further provided in the platform portion, the limiting hole is adapted to the limiting rod, the limiting hole is used to provide a connection position for the limiting rod, and a receiving groove for accommodating the block is provided in the platform portion, wherein the inner wall of the limiting hole is smooth and has high dimensional accuracy to ensure that the limiting rod can be accurately inserted; the depth and position of the limiting hole are precisely calculated to achieve effective limitation on the rotation of the block, and the receiving groove needs to be adapted to the rotation trajectory of the block.

[0012] In a further embodiment, the length of the stop block is greater than the width of the fixed block, wherein the length of the stop block is designed so as to limit the movement of the fixed block when it is rotated to the working position; the portion of the stop block that exceeds the width of the fixed block is reasonably optimized in size to avoid interference with other components.

[0013] In a further embodiment, the extrusion block is a trapezoidal block, the inclined surface of the extrusion block is adapted to the inclined surface of the triangular block, and the triangular block is located at the center of the two extrusion blocks, wherein the surface roughness of the extrusion block and the triangular block is controlled within a certain range to reduce friction loss and improve transmission efficiency.

[0014] The present invention adopts the above technical solution, and compared with the prior art, has the following technical effects:

[0015] (1) Through the coordination among the connecting block, the fixed block, the triangular block, the extrusion block, the card block, the card slot and the spring, a quick and convenient installation and disassembly function is achieved; when installing, the fixed block is inserted into the installation slot of the connecting block, and the triangular block will squeeze the extrusion blocks on both sides; the extrusion block slides to both sides, driving the card block to move and compressing the spring; when the fixed block is pressed into place, the spring rebounds and the card block is stuck into the card slot to achieve fixation; when disassembling, it is only necessary to overcome the elastic force of the spring to make the card block fall out of the card slot and then pull out the fixed block; this structural coordination does not require the use of complex tools and tedious operations, which greatly improves the efficiency of installation and disassembly.

[0016] (2) By providing an empty slot in the fixed block, rotating the connecting block in the empty slot, and combining the coordinated action of the movable block, connecting rod, pull ring and limit rod, the problem of connection failure that may be caused by the upward movement of the fixed block due to the spring rebound force is effectively solved; when the fixed block is installed in place and the card block is inserted into the card slot, the stop block is rotated to make it perpendicular to the fixed block, thereby preventing the fixed block from moving upward due to the spring rebound force; then, the pull ring is pressed downward to drive the movable block downward through the connecting rod, so that the limit rod enters the limit hole opened in the platform part, further limiting the rotation of the stop block, thereby ensuring that the stop block can continuously and stably play a blocking role. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of an assembled step ladder for a railway maintenance work platform according to the present invention;

[0018] Figure 2 For this utility model Figure 1 The main cross-sectional structure diagram of an assembled vehicle step ladder used for a railway maintenance work platform is shown;

[0019] Figure 3 For this utility model Figure 1 A schematic side cross-sectional view of an assembled vehicle step ladder for a railway maintenance work platform is shown;

[0020] Figure 4 This is a structural schematic diagram of a fixed block in an assembled step ladder for a railway maintenance work platform according to the present invention;

[0021] Figure 5 For this utility model Figure 4 A schematic diagram of a top-sectional structure of an assembled vehicle step ladder for a railway maintenance work platform is shown;

[0022] Figure 6 For this utility model Figure 2 The figure shows a schematic diagram of the structure of position A in an assembled vehicle step ladder for a railway maintenance work platform;

[0023] Figure 7 For this utility model Figure 3 The structure diagram of position B of an assembled step ladder for a railway maintenance work platform is shown;

[0024] The reference numerals in the figure are: 1. Staircase part; 101. Connecting block; 1011. Triangular block; 1012. Slot; 2. Platform part; 3. Fixed block; 301. Empty slot; 302. Groove; 4. Extrusion block; 5. Slot; 6. Spring; 7. Stop block; 8. Movable block; 801. Connecting rod; 802. Limit rod. DETAILED DESCRIPTION

[0025] To make the purpose, technical solutions, and advantages of this practical embodiment more clear, the technical solutions in this practical embodiment are clearly and completely described. Obviously, the described embodiments are part of the embodiments of this practical, not all of them. Based on the embodiments in this practical, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this practical.

[0026] The present invention provides an assembled vehicle ladder for use on a railway maintenance work platform, resolving the technical issues of inconvenient installation and removal of components on the ladder and effectively preventing connection failure caused by upward movement of the fixing block due to the spring's rebound force. In actual use, the ladder facilitates installation and removal of components and avoids the problem of the fixing block moving upward due to the spring.

[0027] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0028] Reference Figure 1-7, an assembled step ladder for a railway maintenance work platform, comprising: a stair part 1 for climbing; a platform part 2, stably connected to the highest point of the stair part 1, the platform part 2 being located at the highest point of the stair part 1 away from the lowest point of the stair part 1; a plurality of connecting blocks 101, and the plurality of connecting blocks 101 are stably connected to the stair part 1, a mounting groove is provided in the connecting block 101, the connecting block 101 is used to connect the stair part 1 and the platform part 2; a plurality of fixing blocks 3 are provided, the fixing blocks 3 are stably installed in the mounting groove, and the fixing blocks 3 are used to fix the connecting blocks 101; a groove 302 is provided in the fixing block 3 and is connected to the bottom of the fixing block 3; a plurality of triangular blocks 1011 are provided, and the plurality of triangular blocks 1 011 is stably connected to the bottom of the installation groove; there are multiple extrusion blocks 4, and the multiple extrusion blocks 4 are respectively located on both sides of the triangular block 1011, the extrusion block 4 is in the installation groove, the extrusion block 4 is slidably connected to the fixed block 3, and the extrusion block 4 is in contact with the triangular block 1011; there are multiple clamping blocks 5, and the clamping blocks 5 are located on the side of the extrusion block 4 away from the triangular block 1011, and the clamping blocks 5 are used to fix the fixed block 3; the clamping slot 1012 is opened in the connecting block 101, and the clamping slot 1012 is adapted to the active trajectory of the clamping block 5, and the clamping slot 1012 is used to provide a clamping position for the clamping block 5; the spring 6 is between the clamping block 5 and the extrusion block 4, and the spring 6 is stably installed in the fixed block 3, and the spring 6 is used to reset the clamping block 5.

[0029] The mutual cooperation between the above structures can facilitate the installation and disassembly of the components on the bicycle ladder.

[0030] The empty slot 301 is provided in the fixing block 3 , and the empty slot 301 is located directly above the groove 302 .

[0031] By providing the empty slot 301 in the fixing block 3 , the purpose of providing space for the subsequent installation of components such as the stop block 7 is achieved.

[0032] The stopper 7 is rotatably connected in the slot 301 , and is used to limit the position of the fixing block 3 .

[0033] By rotating the stopper 7 in the slot 301 , the position of the fixing block 3 is limited, thereby preventing the fixing block 3 from moving upward due to the rebound force of the spring 6 .

[0034] The movable block 8 is slidably connected in the stopper 7, and the movable block 8 is used to drive the stopper 7 to rotate.

[0035] The movable block 8 is slidably connected in the stopper 7, thereby driving the stopper 7 to rotate and thus playing a limiting role.

[0036] The connecting rod 801 is stably connected to the top of the movable block 8, and one end of the connecting rod 801 is stably connected to the movable block 8, and the other end passes through the top of the fixed block 3 and is stably connected to a pull ring; there are two limiting rods 802, and the limiting rods 802 are stably connected to the bottom of the movable block 8. The spacing between the two limiting rods 802 is greater than the width of the fixed block 3. The two limiting rods 802 are symmetrical through the vertical center line of the connecting rod 801, and the limiting rods 802 are used to limit the rotation of the block 7.

[0037] Through the cooperation of the connecting rod 801, the pull ring, the movable block 8 and the limiting rod 802, the operator can control the movable block 8 and the limiting rod 802 through the pull ring, thereby limiting the rotation of the stopper 7.

[0038] A limiting hole is further provided in the platform portion 2 , and the limiting hole is adapted to the limiting rod 802 . The limiting hole is used to provide a connection position for the limiting rod 802 . A receiving groove for receiving the stopper 7 is provided in the platform portion 2 .

[0039] By providing a limiting hole in the connection block 101 to cooperate with the limiting rod 802 , an accurate connection position is provided for the limiting rod 802 , thereby further enhancing the purpose of limiting the rotation of the stopper 7 .

[0040] The length of the stop block 7 is greater than the width of the fixing block 3 .

[0041] By making the length of the stop block 7 greater than the width of the fixing block 3, the purpose of more effectively blocking the fixing block 3 from moving upward and enhancing the fixing effect is achieved.

[0042] The extrusion block 4 is a trapezoidal block, and the inclined surface of the extrusion block 4 is adapted to the inclined surface of the triangular block 1011 . The triangular block 1011 is located at the center of the two extrusion blocks 4 .

[0043] By designing the extrusion block 4 as a trapezoid and adapting it to the inclined surface of the triangular block 1011, and placing the triangular block 1011 at the center of the two extrusion blocks 4, the extrusion block 4 can be accurately pushed to move when the fixing block 3 is installed, thereby ensuring the smooth progress of the fixing operation.

[0044] During use, when fixing, the fixing block 3 is inserted into the installation groove of the connecting block 101, and the triangular block 1011 at the bottom of the installation groove squeezes the squeezing blocks 4 on both sides thereof; under the squeezing action, the squeezing block 4 drives the clamping block 5 to move toward the clamping groove 1012, and at this time the spring 6 is in a compressed state; when the fixing block 3 is pressed into place, the clamping block 5 is just clamped into the clamping groove 1012 of the connecting block 101, achieving preliminary fixation; then, the stopper 7 in the empty groove 301 in the fixing block 3 is rotated to make it perpendicular to the fixing block 3, preventing the fixing block 3 from moving upward due to external force; then, the pull ring is pressed downward to drive the movable block 8 downward through the connecting rod 801, so that the movable block 8 The limiting rod 802 at the bottom enters the limiting hole of the platform part 2, further limiting the rotation of the stop block 7 and ensuring that the fixed block 3 is firmly positioned. When disassembling, first lift the pull ring upwards to drive the movable block 8 upward through the connecting rod 801, so that the limiting rod 802 disengages from the limiting hole; then rotate the stop block 7 so that it is completely immersed in the empty slot 301; thereafter, the rebound force of the spring 6 and the upward pulling force of the pull ring on the fixed block 3 cause the clamping block 5 to disengage from the clamping slot 1012; at this time, the extrusion block 4 is no longer restricted by the clamping block 5, and the compressed spring 6 stretches to push the extrusion block 4 to reset, so that the fixed block 3 can be pulled out of the installation slot to complete the disassembly.

[0045] The other structures required above, such as protective structure, positioning structure, reinforcement structure, etc., all belong to the existing technology and are non-essential technical features in this application, so they are not described or drawn in the documents and drawings of this application.

[0046] To sum up, compared with the existing technology, the present invention has the following beneficial effects: First, in terms of component fixation, through the cooperation of unique connecting blocks, fixed blocks, triangular blocks, extrusion blocks, card blocks and card slots, fast and stable installation can be achieved without complicated tools, which greatly improves the installation efficiency; secondly, in order to solve the problem that the spring rebound force may cause the fixed block to move upward, innovative structures such as block blocks, movable blocks, connecting rods, pull rings and limit rods are designed to effectively avoid connection failure and enhance the stability and safety of ladder use; thirdly, the overall structural design is simple and easy to operate, which reduces the difficulty of installation and disassembly, reduces manpower and time costs, and improves work efficiency.

[0047] This invention encompasses any alternatives, modifications, equivalents, and solutions that do not depart from the spirit and scope of this invention. While specific details are described in detail in the preferred embodiments of this invention to provide a thorough understanding, those skilled in the art will be able to fully understand this invention without these details. Furthermore, to avoid unnecessary confusion regarding the essence of this invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0048] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. An assembled vehicle step ladder for a railway maintenance work platform, characterized in that: include: Staircase part, used for climbing; The platform portion is stably connected to the highest point of the stair portion, and the platform portion is located on a side of the highest point of the stair portion away from the lowest point of the stair portion; There are multiple connecting blocks, and the multiple connecting blocks are stably connected to the stair part. The connecting blocks are provided with mounting grooves, and the connecting blocks are used to connect the stair part and the platform part; There are multiple fixing blocks, each of which is stably mounted in the mounting groove and is used to fix the connecting block; A groove is formed in the fixing block and is connected to the bottom of the fixing block; There are multiple triangular blocks, and the multiple triangular blocks are stably connected to the bottom of the installation groove; There are multiple extrusion blocks, and the multiple extrusion blocks are respectively located on both sides of the triangular block. The extrusion blocks are located in the mounting grooves, the extrusion blocks are slidably connected to the fixed blocks, and the extrusion blocks are in contact with the triangular blocks; There are multiple clamping blocks, and the clamping blocks are located on the side of the extrusion block away from the triangular block, and the clamping blocks are used to fix the fixed block; A card slot is provided in the connecting block, and the card slot is adapted to the movable track of the card block, and is used to provide a card connection position for the card block; The spring is located between the clamping block and the extruding block, and the spring is stably installed in the fixing block. The spring is used for resetting the clamping block.

2. The assembled vehicle step ladder for railway maintenance work platform according to claim 1 is characterized in that: Also includes: An empty slot is provided in the fixed block, and the empty slot is located directly above the groove.

3. The assembled vehicle step ladder for railway maintenance work platform according to claim 2 is characterized in that: Also includes: The stopper is rotatably connected in the empty slot and is used to limit the position of the fixed block.

4. The assembled vehicle step ladder for railway maintenance work platform according to claim 3 is characterized in that: Also includes: The movable block is slidably connected in the stopper, and the movable block is used to drive the stopper to rotate.

5. The assembled vehicle step ladder for railway maintenance work platform according to claim 4 is characterized in that: Also includes: A connecting rod is stably connected to the upper portion of the movable block, and one end of the connecting rod is stably connected to the movable block, while the other end passes through the upper portion of the fixed block and is stably connected to a pull ring; There are two limit rods, and the limit rods are stably connected to the bottom of the movable block. The distance between the two limit rods is greater than the width of the fixed block. The two limit rods are symmetrical through the vertical center line of the connecting rod. The limit rods are used to limit the rotation of the block.

6. The assembled vehicle-mounted ladder for a railway maintenance work platform according to claim 5 is characterized in that: A limiting hole is further provided in the platform portion, the limiting hole is adapted to the limiting rod, the limiting hole is used to provide a connection position for the limiting rod, and an accommodating groove for accommodating a stopper is provided in the platform portion.

7. The assembled vehicle step ladder for a railway maintenance work platform according to claim 3 is characterized in that: The length of the stop block is greater than the width of the fixing block.

8. The assembled vehicle-mounted ladder for a railway maintenance work platform according to claim 1 is characterized in that: The extrusion block is a trapezoidal block, the inclined surface of the extrusion block is adapted to the inclined surface of the triangular block, and the triangular block is located at the center of the two extrusion blocks.

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