Sliding positioning device for inner wall of train carriage

Abstract

The sliding positioning device for the inner wall of the train carriage comprises a spring ball mechanism and an electric stretching mechanism, the spring ball mechanism is attached to the two sides of the inner wall of the train carriage to slide, one side of the spring ball mechanism is fixedly connected with the electric stretching mechanism, and the electric stretching mechanism is fixedly installed on the surface of an installation plate. The utility model has the beneficial effects of reasonable structural design, ingenious conception, convenience in operation and connection, small volume, easiness in processing and manufacturing, low processing and manufacturing cost, capability of being connected with various loading and unloading tools or hoisting equipment to drive the loading and unloading tools or the hoisting equipment to safely work in the train carriage, capability of moving by fitting the inner wall of the train carriage and convenience in maintenance. The positioning device is suitable for various conditions of the inner wall of the carriage, can position loading and unloading tools or hoisting equipment, ensures space moving operation of the loading and unloading tools or the hoisting equipment in the train carriage, is safer and more reliable to operate, and does not shake and collide back and forth in the train carriage; and the success rate and the loading and unloading efficiency of loading and unloading goods in the train carriage by various hoisting equipment are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to train carriage hoisting equipment auxiliary equipment technical field, concretely is a kind of sliding positioning device of train carriage inner wall. BACKGROUND

[0002] With the continuous development of national economy and the continuous expansion of one belt and one road, freight train plays a more and more important role in national economy, and its transportation cost is lower, and it has significant advantages in logistics cost and efficiency. Railway freight (or luggage transportation) can be divided into sending operation, intermediate operation and arrival operation, and the sending operation and arrival operation are inseparable from loading and unloading, so it can be seen that loading and unloading plays a very important role in the safety and punctuality of railway freight transportation, and the goods are intact. Therefore, freight train is widely used in domestic, and many corresponding loading and unloading tools or hoisting equipment are developed for freight train loading and unloading operation.

[0003] Ordinary loading and unloading tools or hoisting equipment are generally connected with equipment through crane hook. During hoisting operation, the steel wire rope above the crane hook is flexible, and the hoisting equipment will shake greatly during movement. After entering the carriage, the hoisting equipment and the carriage will collide and rub due to the shaking. As a result, on the one hand, the equipment is damaged and the inner wall of the carriage is deformed, on the other hand, the loading efficiency and safety of hoisting operation are greatly affected.

[0004] Therefore, it is necessary to design an auxiliary device that can safely and stably assist the loading and unloading tool or hoisting equipment, so that the loading and unloading tool or hoisting equipment will not arbitrarily touch the inner wall of the carriage during operation in the train carriage, so that the train carriage and the equipment will not be damaged by friction. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a kind of structure design reasonable, ingenious, operation connection is convenient, small in size, easy to process and manufacture, processing and manufacturing cost is low, can be connected with various loading and unloading tools or hoisting equipment, drives loading and unloading tool or hoisting equipment to operate safely in train carriage, can be moved in line with the inner wall of train carriage, adapt to various conditions of the inner wall of carriage, widely applicable, can realize the positioning of loading and unloading tool or hoisting equipment, ensure the space movement operation of loading and unloading tool or hoisting equipment in train carriage, operation is safer and more reliable, will not be shaken back and forth, collide in train carriage, improve the success rate and loading and unloading efficiency of various hoisting equipment in train carriage in loading and unloading goods in train carriage inner wall sliding positioning device.

[0006] This utility model discloses a sliding positioning device for the inner wall of a train carriage, comprising a spring ball mechanism and an electric extension mechanism. The spring ball mechanism slides against both sides of the inner wall of the train carriage, and an electric extension mechanism is fixedly connected to one side of the spring ball mechanism. The electric extension mechanism is fixedly installed on the surface of the mounting plate.

[0007] The electric extension mechanism includes an extension motor, a driven sprocket, a transmission sprocket, a lead screw drive shaft, a lead screw nut, an extension rod, and an extension seat. The extension motor is fixedly mounted on the surface of the mounting plate. A transmission sprocket is installed at the output end of the extension motor. The transmission sprocket is connected to the driven sprocket via a chain. Two lead screw drive shafts are connected to both sides of the driven sprocket. A lead screw nut is installed on each of the two lead screw drive shafts. An extension rod is fixedly installed on the side wall of each of the two lead screw nuts. An extension seat is fixedly installed at the end of the extension rod.

[0008] The extension seat includes side plates, horizontal plates, and holes. There are two side plates, which are located on both sides. A horizontal plate is provided between the two side plates. There are two horizontal plates, and a rectangular frame is formed between the two horizontal plates and the side plates. The surface of the side plate on one side is provided with holes.

[0009] The mounting plate is used to fix the electric extension mechanism, which is the power transmission mechanism of the device. The extension motor provides power, driving the transmission sprocket connected to the extension motor to rotate. The transmission sprocket drives the driven sprocket to rotate, which in turn drives the lead screw nut connected to both sides of the driven sprocket to rotate to both sides. The lead screw nut is connected to the extension rod, which in turn drives the extension rod to extend towards the inner wall of the train car on both sides. The end of the extension rod is fixedly connected to the extension seat. The extension seat drives the spring ball mechanism to gradually extend and fit against the inner wall of the train car on both sides. The mounting plate can be fixedly connected to loading and unloading tools or lifting equipment. It is easy to operate and can be applied to various spaces inside train cars. It provides power for the entire sliding positioning device, fully ensuring the smooth completion of the spatial movement operation of loading and unloading tools or lifting equipment in the train car, making the operation safer and more reliable.

[0010] The aforementioned spring ball mechanism includes an outer sleeve, a spring, an inner sleeve, universal balls, and a cover plate. Multiple outer sleeves are mounted on extension seats on both sides. One end of each outer sleeve is fitted against the inner wall of one side panel. An inner sleeve is fitted onto the inner wall of the outer sleeve. A spring is fixedly connected between the inner sleeve and the inner wall of the outer sleeve. One end of the spring is fixedly connected to the inner wall of one side panel, and the other end is fixedly connected to the side wall of the inner sleeve. The spring is located inside the outer sleeve. The other end of the outer sleeve is fixedly installed to the outer wall of the other side panel via a cover plate. The inner sleeve extends through a hole to the outside of the other side panel. Universal balls are installed at the end of the inner sleeve, fitting against both sides of the inner wall of the train car and sliding along the inner wall of the train car.

[0011] The spring-ball bearing mechanism can fit against the inner walls of both train carriages. The universal ball bearings can slide freely in various directions along the inner walls of both train carriages as the loading / unloading tools or hoisting equipment move. One end of the outer sleeve fits against the inner wall of one side plate of the rectangular frame of the extension seat, and the other end is fixedly installed on the outer wall of the other side plate of the rectangular frame of the extension seat via a cover plate. A spring is fixedly connected between the inner sleeve and the inner wall of the outer sleeve, and the spring is located inside the outer sleeve. Therefore, the outer sleeve provides a force point for the spring's movement. The spring extends from the inner sleeve to the outside of the other side plate. Universal ball bearings are installed at the end of the inner sleeve, so the inner sleeve can drive the universal ball bearings to slide in various directions along the inner walls of both train carriages. The outer sleeve, spring, inner sleeve, universal ball bearings, and cover plate are configured as multiple sets of structures. When the ball bearings come into contact with the inner walls of the train carriages on both sides, the contact state between each spring ball bearing mechanism and the inner wall is different due to the unevenness of the inner wall. As the electric extension mechanism continues to extend outward, each spring ball bearing mechanism automatically adjusts the degree of spring extension using its internal spring, so that each universal ball bearing makes full contact with the inner wall of the train carriage. This ensures that the loading and unloading tools or hoisting equipment fixedly connected to the mounting plate can move and operate within the train carriage, making the fixation safer and more reliable. It will not rub or collide with the inner wall of the train carriage, thus avoiding damage to the loading and unloading tools or hoisting equipment and ensuring the operational safety of the loading and unloading tools or hoisting equipment, improving the operating efficiency of the loading and unloading tools or hoisting equipment, and extending the service life of the loading and unloading tools or hoisting equipment.

[0012] The beneficial effects of this utility model are:

[0013] 1) The mounting plate can be used to fix the electric extension mechanism, which is the power transmission mechanism of the device. The extension motor provides power to drive the transmission sprocket connected to the extension motor to rotate. The transmission sprocket drives the driven sprocket to rotate, which in turn drives the lead screw nut connected to both sides of the driven sprocket to rotate to both sides. The lead screw nut is connected to the extension rod, which will drive the extension rod to extend towards the inner wall of the train car on both sides. The end of the extension rod is fixedly connected to the extension seat. The extension seat drives the spring ball mechanism to gradually extend and fit against the inner wall of the train car on both sides. The mounting plate can be fixedly connected to the loading and unloading tools or lifting equipment. It is easy to operate and can be applied to various spaces inside the train car. It provides power guarantee for the entire sliding positioning device, fully ensuring the smooth completion of the spatial movement operation of loading and unloading tools or lifting equipment in the train car, and making the operation safer and more reliable.

[0014] 2) The spring-ball bearing mechanism can fit against the inner walls of both train carriages. The universal ball bearings can slide freely in various directions along the inner walls of both train carriages as the loading / unloading tools or hoisting equipment move. One end of the outer sleeve fits against the inner wall of one side plate of the rectangular frame of the extension seat, and the other end is fixedly installed on the outer wall of the other side plate of the rectangular frame of the extension seat through a cover plate. A spring is fixedly connected between the inner sleeve and the inner wall of the outer sleeve. The spring is located inside the outer sleeve, so the outer sleeve can provide a force point for the spring's movement. The spring extends from the inner sleeve to the outside of the other side plate. Universal ball bearings are installed at the end of the inner sleeve, so the inner sleeve can drive the universal ball bearings to slide in various directions along the inner walls of both train carriages. The outer sleeve, spring, inner sleeve, universal ball bearings, and cover plate are configured as multiple sets of structures. When the universal ball bearings come into contact with the inner walls of the train carriages on both sides, the contact state between each spring ball bearing mechanism and the inner wall is different due to the unevenness of the inner wall. As the electric extension mechanism continues to extend outward, each spring ball bearing mechanism automatically adjusts the degree of spring extension using its internal spring, so that each universal ball bearing makes full contact with the inner wall of the train carriage. This ensures that the loading and unloading tools or hoisting equipment fixedly connected to the mounting plate can move and operate within the train carriage, making the fixation safer and more reliable. It will not rub or collide with the inner wall of the train carriage, thus avoiding damage to the loading and unloading tools or hoisting equipment from the inner wall of the train carriage, ensuring the operational safety of the loading and unloading tools or hoisting equipment, improving the operational efficiency of the loading and unloading tools or hoisting equipment, and extending the service life of the loading and unloading tools or hoisting equipment.

[0015] 3) This device features a reasonable and ingenious structural design, convenient operation and connection, small size, and easy processing and manufacturing. It has low manufacturing costs and can be connected to various loading and unloading tools or hoisting equipment, enabling safe operation of these tools or equipment within train carriages. It can move along the inner walls of the train carriages, adapting to various conditions within the carriages, and has a wide range of applications. It can position loading and unloading tools or hoisting equipment, ensuring their spatial movement within the train carriages. Operation is safer and more reliable, preventing swaying and collisions within the train carriages, and improving the success rate and efficiency of loading and unloading goods in train carriages. This device assists hoisting equipment in loading and unloading goods in freight cars. By sliding up and down using the inner walls on both sides of the train car as a reference, the hoisting equipment can be quickly and accurately positioned in the center of the train car. This optimizes the ease of use and hoisting efficiency of various hoisting equipment, effectively improving the success rate and efficiency of loading and unloading goods in train cars. It also avoids hoisting equipment from swaying and colliding back and forth in the train car, which can lead to ineffective positioning and low work efficiency and safety hazards. At the same time, it can effectively prevent hoisting equipment from colliding with the inner walls of the train car, thus protecting the inner walls of the train car. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 for Figure 1 Top view;

[0018] Figure 3 This is a front view of the extension seat in this utility model;

[0019] Figure 4 for Figure 3 Side view;

[0020] Figure 5 for Figure 3 Top view;

[0021] Figure 6 for Figure 1 A magnified structural diagram at point A in the diagram.

[0022] In the diagram: 1. Spring ball bearing mechanism, 1.1. Outer sleeve, 1.2. Spring, 1.3. Inner sleeve, 1.4. Universal ball bearing, 1.5. Cover plate, 2. Electric extension mechanism, 2.1. Extension motor, 2.2. Passive sprocket, 2.3. Drive sprocket, 2.4. Lead screw drive shaft, 2.5. Lead screw nut, 2.6. Extension rod, 2.7. Extension seat, 2.71. Side plate, 2.72. Horizontal plate, 2.73. Hole, 3. Mounting plate, 4. Train carriage. Detailed Implementation

[0023] Example 1.

[0024] The following will be combined with the appendix Figures 1-2 The present invention will be further described below.

[0025] This utility model includes a spring ball mechanism 1, an outer sleeve 1.1, a spring 1.2, an inner sleeve 1.3, a universal ball bearing 1.4, a cover plate 1.5, an electric extension mechanism 2, an extension motor 2.1, a passive sprocket 2.2, a transmission sprocket 2.3, a lead screw drive shaft 2.4, a lead screw nut 2.5, an extension rod 2.6, an extension seat 2.7, a side plate 2.71, a horizontal plate 2.72, a hole 2.73, a mounting plate 3, and a train carriage 4. The specific structure includes the spring ball mechanism 1 and the electric extension mechanism 2. The spring ball mechanism 1 slides against both sides of the inner wall of the train carriage 4. The electric extension mechanism 2 is fixedly connected to one side of the spring ball mechanism 1 and is fixedly installed on the surface of the mounting plate 3.

[0026] The electric extension mechanism 2 includes an extension motor 2.1, a driven sprocket 2.2, a transmission sprocket 2.3, a lead screw drive shaft 2.4, a lead screw nut 2.5, an extension rod 2.6, and an extension seat 2.7. The extension motor 2.1 is fixedly mounted on the surface of the mounting plate 3. The output end of the extension motor 2.1 is equipped with a transmission sprocket 2.3, which is connected to the driven sprocket 2.2 via a chain. Lead screw drive shafts 2.4 are connected to both sides of the driven sprocket 2.2. There are two lead screw drive shafts 2.4, and lead screw nuts 2.5 are installed on each of the two lead screw drive shafts 2.4. Extension rods 2.6 are fixedly mounted on the side walls of the two lead screw nuts 2.5, and extension seats 2.7 are fixedly mounted on the ends of the extension rods 2.6.

[0027] The extension seat 2.7 includes a side plate 2.71, a horizontal plate 2.72, and a hole 2.73. There are two side plates 2.71, which are located on both sides. A horizontal plate 2.72 is arranged between the two side plates 2.71. There are two horizontal plates 2.72. The two horizontal plates 2.72 and the side plates 2.71 form a rectangular frame. The side plate 2.71 on one side has a hole 2.73 on its surface.

[0028] The two lead screw drive shafts 2.4 are configured with opposite teeth, which can synchronously drive the lead screw nuts 2.5 on both sides to move in opposite directions.

[0029] The spring ball mechanism 1 includes an outer sleeve 1.1, a spring 1.2, an inner sleeve 1.3, a universal ball bearing 1.4, and a cover plate 1.5. Multiple outer sleeves 1.1 are mounted on extension seats 2.7 on both sides. One end of each outer sleeve 1.1 is fitted against the inner wall of one side plate 2.71. The inner sleeve 1.3 is fitted onto the inner wall of the outer sleeve 1.1. A spring 1.2 is fixedly connected between the inner sleeve 1.3 and the inner wall of the outer sleeve 1.1. One end of the spring 1.2 is fixedly connected to one side plate 2.71. On the inner wall, the other end of the spring 1.2 is fixedly connected to the side wall of the inner sleeve 1.3, and the spring 1.2 is located inside the outer sleeve 1.1; the other end of the outer sleeve 1.1 is fixedly installed on the outer wall of the other side plate 2.71 through the cover plate 1.5, and the inner sleeve 1.3 extends to the outside of the other side plate 2.71 through the hole 2.73. A universal ball bearing 1.4 is installed at the end of the inner sleeve 1.3. The universal ball bearing 1.4 fits against both sides of the inner wall of the train car 4 and slides along the inner wall of the train car 4.

[0030] The outer sleeve 1.1, spring 1.2, inner sleeve 1.3, universal ball bearing 1.4, and cover plate 1.5 are arranged as a group, and are arranged in two groups horizontally and six groups vertically along the extension seat 2.7 of the spring ball bearing mechanism 1.

[0031] Instructions for use: Securely connect the loading / unloading tool to the mounting plate 3. Activate the electric extension mechanism 2. The electric extension mechanism 2 drives the transmission sprocket 2.3 to rotate, which in turn drives the driven sprocket 2.2 to rotate. This, in turn, drives the lead screw nut 2.5 to rotate to both sides via the lead screw drive shaft 2.4 connected to both sides of the driven sprocket 2.2. The lead screw nut 2.5 is connected to the extension rod 2.6, which simultaneously extends the extension rod 2.6 along the inner walls of the train carriage 4 on both sides. An extension seat 2 is fixedly connected to the end of the extension rod 2.6. .7, the extension seat 2.7 drives the spring ball mechanism 1 to gradually extend and fit against the inner walls of the two train carriages 4; the universal ball bearings 1.4 can slide freely in various directions along the inner walls of the two train carriages 4 as the loading and unloading tools move; one end of the outer sleeve 1.1 fits against the inner wall of one side plate 2.71 of the rectangular frame of the extension seat 2.7, and the other end is fixedly installed on the outer wall of the other side plate 2.71 of the rectangular frame of the extension seat 2.7 through the cover plate 1.5; the inner sleeve 1.3 and the inner wall of the outer sleeve 1.1 are fixedly... A fixed connection is provided with a spring 1.2, which is located inside the outer sleeve 1.1. Therefore, the outer sleeve 1.1 provides a point of force for the movement of the spring 1.2. The spring 1.2 is connected to an inner sleeve 1.3 extending to the outside of the side plate 2.71. A universal ball bearing 1.4 is installed at the end of the inner sleeve 1.3, allowing the inner sleeve 1.3 to drive the universal ball bearing 1.4 to slide in various directions along the inner walls of the two train carriages 4. The outer sleeve 1.1, spring 1.2, inner sleeve 1.3, universal ball bearing 1.4, and cover plate 1.5 are configured as multiple sets of structures. When the universal ball bearing 1.4 contacts the inner walls of the two train carriages 4, the contact state between each spring ball bearing mechanism 1 and the inner wall of the train carriage 4 is different due to the unevenness of the inner wall of the train carriage 4. As the electric extension mechanism 2 continues to extend outward, each spring ball bearing mechanism 1 uses the internally installed spring 1.2 to automatically adjust the extension degree of the spring 1.2, so that each universal ball bearing 1.4 can fully contact the inner wall of the train carriage 4, which can ensure that the loading and unloading tools fixedly connected to the mounting plate 3 can move and operate inside the train carriage 4.

[0032] Example 2.

[0033] This utility model includes a spring ball mechanism 1, an outer sleeve 1.1, a spring 1.2, an inner sleeve 1.3, a universal ball bearing 1.4, a cover plate 1.5, an electric extension mechanism 2, an extension motor 2.1, a passive sprocket 2.2, a transmission sprocket 2.3, a lead screw drive shaft 2.4, a lead screw nut 2.5, an extension rod 2.6, an extension seat 2.7, a side plate 2.71, a horizontal plate 2.72, a hole 2.73, a mounting plate 3, and a train carriage 4. The specific structure includes the spring ball mechanism 1 and the electric extension mechanism 2. The spring ball mechanism 1 slides against both sides of the inner wall of the train carriage 4. The electric extension mechanism 2 is fixedly connected to one side of the spring ball mechanism 1 and is fixedly installed on the surface of the mounting plate 3.

[0034] The electric extension mechanism 2 includes an extension motor 2.1, a driven sprocket 2.2, a transmission sprocket 2.3, a lead screw drive shaft 2.4, a lead screw nut 2.5, an extension rod 2.6, and an extension seat 2.7. The extension motor 2.1 is fixedly mounted on the surface of the mounting plate 3. The output end of the extension motor 2.1 is equipped with a transmission sprocket 2.3, which is connected to the driven sprocket 2.2 via a chain. Lead screw drive shafts 2.4 are connected to both sides of the driven sprocket 2.2. There are two lead screw drive shafts 2.4, and lead screw nuts 2.5 are installed on each of the two lead screw drive shafts 2.4. Extension rods 2.6 are fixedly mounted on the side walls of the two lead screw nuts 2.5, and extension seats 2.7 are fixedly mounted on the ends of the extension rods 2.6.

[0035] The extension seat 2.7 includes a side plate 2.71, a horizontal plate 2.72, and a hole 2.73. There are two side plates 2.71, which are located on both sides. A horizontal plate 2.72 is arranged between the two side plates 2.71. There are two horizontal plates 2.72. The two horizontal plates 2.72 and the side plates 2.71 form a rectangular frame. The side plate 2.71 on one side has a hole 2.73 on its surface.

[0036] The two lead screw drive shafts 2.4 are configured with opposite teeth, which can synchronously drive the lead screw nuts 2.5 on both sides to move in opposite directions.

[0037] The spring ball mechanism 1 includes an outer sleeve 1.1, a spring 1.2, an inner sleeve 1.3, a universal ball bearing 1.4, and a cover plate 1.5. Multiple outer sleeves 1.1 are mounted on extension seats 2.7 on both sides. One end of each outer sleeve 1.1 is fitted against the inner wall of one side plate 2.71. The inner sleeve 1.3 is fitted onto the inner wall of the outer sleeve 1.1. A spring 1.2 is fixedly connected between the inner sleeve 1.3 and the inner wall of the outer sleeve 1.1. One end of the spring 1.2 is fixedly connected to one side plate 2.71. On the inner wall, the other end of the spring 1.2 is fixedly connected to the side wall of the inner sleeve 1.3, and the spring 1.2 is located inside the outer sleeve 1.1; the other end of the outer sleeve 1.1 is fixedly installed on the outer wall of the other side plate 2.71 through the cover plate 1.5, and the inner sleeve 1.3 extends to the outside of the other side plate 2.71 through the hole 2.73. A universal ball bearing 1.4 is installed at the end of the inner sleeve 1.3. The universal ball bearing 1.4 fits against both sides of the inner wall of the train car 4 and slides along the inner wall of the train car 4.

[0038] The outer sleeve 1.1, spring 1.2, inner sleeve 1.3, universal ball bearing 1.4, and cover plate 1.5 are arranged as a group, and are arranged in three groups horizontally and eight groups vertically along the extension seat 2.7 of the spring ball bearing mechanism 1.

[0039] Instructions for use: Securely connect the hoisting equipment to the mounting plate 3. Activate the electric extension mechanism 2. The electric extension mechanism 2 drives the transmission sprocket 2.3 to rotate, which in turn drives the driven sprocket 2.2 to rotate. This, in turn, drives the lead screw nut 2.5 to rotate to both sides via the lead screw drive shaft 2.4 connected to both sides of the driven sprocket 2.2. The lead screw nut 2.5 is connected to the extension rod 2.6, which simultaneously extends the extension rod 2.6 along the inner walls of the train carriage 4 on both sides. An extension seat 2 is fixedly connected to the end of the extension rod 2.6. .7, the extension seat 2.7 drives the spring ball mechanism 1 to gradually extend and fit against the inner walls of the two train carriages 4; the universal ball bearings 1.4 can slide freely in various directions along the inner walls of the two train carriages 4 as the hoisting equipment moves; one end of the outer sleeve 1.1 fits against the inner wall of one side plate 2.71 of the rectangular frame of the extension seat 2.7, and the other end is fixedly installed on the outer wall of the other side plate 2.71 of the rectangular frame of the extension seat 2.7 through the cover plate 1.5; the inner sleeve 1.3 and the inner wall of the outer sleeve 1.1 are fixedly... A fixed connection is provided with a spring 1.2, which is located inside the outer sleeve 1.1. Therefore, the outer sleeve 1.1 provides a point of force for the movement of the spring 1.2. The spring 1.2 is connected to an inner sleeve 1.3 extending to the outside of the side plate 2.71. A universal ball bearing 1.4 is installed at the end of the inner sleeve 1.3, allowing the inner sleeve 1.3 to drive the universal ball bearing 1.4 to slide in various directions along the inner walls of the two train carriages 4. The outer sleeve 1.1, spring 1.2, inner sleeve 1.3, universal ball bearing 1.4, and cover plate 1.5 are configured as multiple sets of structures. When the universal ball bearing 1.4 contacts the inner walls of the two train carriages 4, the contact state between each spring ball bearing mechanism 1 and the inner wall of the train carriage 4 is different due to the unevenness of the inner wall of the train carriage 4. As the electric extension mechanism 2 continues to extend outward, each spring ball bearing mechanism 1 uses the internally installed spring 1.2 to automatically adjust the extension degree of the spring 1.2, so that each universal ball bearing 1.4 can fully contact the inner wall of the train carriage 4, which can ensure that the hoisting equipment fixedly connected to the mounting plate 3 can move and operate inside the train carriage 4.

Claims

1. A sliding positioning device for the inner wall of a train carriage, characterized in that: Including spring ball mechanism (1) and electric extension mechanism (2), spring ball mechanism (1) is attached to the two sides of train compartment (4) inner wall sliding, one side of spring ball mechanism (1) is fixedly connected with electric extension mechanism (2), electric extension mechanism (2) is fixedly installed on the surface of mounting plate (3).

2. A sliding positioning device for a wall of a railway car as defined in claim 1, wherein: The electric extension mechanism (2) includes an extension motor (2.1), a passive chain wheel (2.2), a transmission chain wheel (2.3), a lead screw transmission shaft (2.4), a lead screw nut (2.5), an extension rod (2.6), and an extension seat (2.7). The extension motor (2.1) is fixedly installed on the surface of the mounting plate (3). The output end of the extension motor (2.1) is provided with the transmission chain wheel (2.3). The transmission chain wheel (2.3) is connected with the passive chain wheel (2.2) through a chain. The two sides of the passive chain wheel (2.2) are respectively connected with the lead screw transmission shaft (2.4). The number of the lead screw transmission shaft (2.4) is two. The two lead screw transmission shafts (2.4) are respectively provided with the lead screw nut (2.5). The side walls of the two lead screw nuts (2.5) are respectively fixedly installed with the extension rod (2.6). The end of the extension rod (2.6) is fixedly installed with the extension seat (2.7).

3. A sliding positioning device for a wall of a railway car as defined in claim 2, wherein: The extension seat (2.7) includes a side plate (2.71), a horizontal plate (2.72), and a hole (2.73). The number of the side plate (2.71) is two, which is arranged on both sides. The horizontal plate (2.72) is arranged between the side plates (2.71) arranged on both sides. The number of the horizontal plate (2.72) is two. A rectangular frame body is formed between the two horizontal plates (2.72) and the side plates (2.71). One side of the side plate (2.71) is provided with the hole (2.73).

4. A sliding positioning device for a wall of a railway car as defined in claim 3 wherein: The spring ball mechanism (1) includes an outer sleeve (1.1), a spring (1.2), an inner sleeve (1.3), a universal ball (1.4), and a cover plate (1.5). A plurality of outer sleeves (1.1) are arranged on the extension seat (2.7) arranged on both sides. One end of the outer sleeve (1.1) is arranged on the inner wall surface of one side plate (2.71). The inner wall of the outer sleeve (1.1) is sleeved with the inner sleeve (1.3). The spring (1.2) is fixedly connected between the inner sleeve (1.3) and the inner wall of the outer sleeve (1.1). One end of the spring (1.2) is fixedly connected to the inner wall surface of one side plate (2.71). The other end of the spring (1.2) is fixedly connected to the side wall of the inner sleeve (1.3). The spring (1.2) is located in the outer sleeve (1.1). The other end of the outer sleeve (1.1) is fixedly installed on the outer wall surface of the other side plate (2.71) through the cover plate (1.5). The inner sleeve (1.3) extends to the outside of the other side plate (2.71) through the hole (2.73). The end of the inner sleeve (1.3) is provided with the universal ball (1.4). The universal ball (1.4) is attached to the inner wall of the train compartment (4) on both sides. The universal ball (1.4) slides along the inner wall of the train compartment (4).

Images