Fixing column of platform safety device, lifting column of platform safety device and platform safety device
Through the wheel and rail matching structure of the guide wheel group and the guide rail, the problem of stuck lag caused by impurities entering the existing platform safety device guide structure is solved, the reliability and service life are improved, and the stable lifting performance in extreme environments is achieved.
Patent Information
- Application Number
- CN202323401096.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-13
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2033-12-13
AI Technical Summary
In the existing platform safety devices, the guide structure using a screw module or a ball slider is prone to stagnation due to the entry of impurities, resulting in insufficient reliability and inability to meet the needs of high frequency and long-term use.
The wheel and rail matching structure is adopted for the guide wheel group and the guide rail. The guide wheel group includes multiple groups of guide wheels, the clamping guide wheel and the inner and outer guide wheels are arranged staggeredly, equipped with wear-resistant materials and limiting grooves to ensure the stable coordination between the guide wheel and the guide rail. Improve reliability.
In extreme environments (such as high temperature, low temperature, rain), 300,000 lifting and lowering tests were performed, without faults, extending the service life of the equipment and meeting the needs of high frequency and long-term use.
Smart Images
Figure CN222296041U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of platform protection, and particularly relates to a fixing column of a platform safety device, a lifting column of the platform safety device and a platform safety device. Background Art
[0002] The existing railway platforms are generally open platforms. Some passengers have weak safety awareness and often walk across the platform safety line. Once a passenger accidentally falls from the platform, it may cause a serious safety accident. The need to configure a safety protection system on the railway platform is imminent.
[0003] Unlike subway platform protection doors, the parking position of high-speed rail or ordinary passenger trains is difficult to control accurately, which requires the safety protection system to open the farther passenger passage as much as possible when opening the door. The patents with authorization announcement numbers CN305782671S and CN211280997U of the applicant provide a lifting platform safety door (platform safety device). The lifting device of the lifting device safety door includes a fixed column and a lifting column. The fixed column can be installed on the platform. The lifting column can be lifted up and down relative to the fixed column, and a secondary lifting module is also provided on the lifting column. The secondary lifting module includes several movable sliders. The sliders are used to connect the protective belt. When the lifting column is lifted, the sliders rise synchronously, driving the protective belt to open the passenger passage, which can meet the safety protection needs of the railway platform.
[0004] The platform safety device designed by the applicant has been used in many high-speed railway stations. The lifting and lowering motion is transmitted between the fixed column and the lifting column through the screw module. The lifting column is fixedly connected to the slider of the screw module and moves up and down with the slider. However, in actual application, since the railway platform is an open environment, impurities such as wind, sand, rain and snow are easy to enter the screw module. In addition, the temperature difference between winter and summer is large, and the thermal expansion coefficients of various parts of the screw module are different. Long-term use causes the module to get stuck and damaged. In addition, according to the applicant's understanding, there are also solutions in the prior art that use ball sliders and guide rails to guide the lifting column. When impurities enter the ball slider, it is also easy to get stuck and other problems, and the reliability is insufficient. Utility Model Content
[0005] The purpose of the utility model is to provide a fixed column of a platform safety device to solve the technical problem that the platform safety device in the form of a screw module or a ball slider in the prior art is not reliable enough. The purpose of the utility model is also to provide a lifting column of a platform safety device to solve the same technical problem as above. The purpose of the utility model is also to provide a platform safety device to solve the same technical problem as above.
[0006] In order to achieve the above-mentioned purpose, the technical solution of the fixed column of the platform safety device provided by the utility model is:
[0007] A fixed column of a platform safety device comprises a fixed column body, one side of the upper section of the fixed column body is provided with at least two groups of guide wheel groups arranged vertically, each group of guide wheel groups comprises at least two guide wheels arranged at intervals on the left and right and used for guiding and moving up and down along the guide rails on the lifting column.
[0008] As a further improvement, at least two groups of guide wheel assemblies include two inner guide wheels respectively used for moving along the inner sides of two guide rails arranged in parallel and spaced apart from each other on the left and right sides.
[0009] As a further improvement, at least one set of guide wheel assemblies further comprises at least one clamping guide wheel for moving along the outer side of at least one guide rail.
[0010] As a further improvement, the positions of the clamping guide wheel and the two upper and lower adjacent inner guide wheels are staggered in a corresponding manner.
[0011] As a further improvement, at least two groups of guide wheel assemblies include two outer guide wheels respectively used for moving along the outer sides of two guide rails arranged in parallel and spaced apart on the left and right sides.
[0012] As a further improvement, at least one set of guide wheel assemblies further comprises at least one clamping guide wheel for moving along the inner side of at least one guide rail.
[0013] As a further improvement, the positions of the clamping guide wheel and the two upper and lower adjacent outer guide wheels are staggered accordingly.
[0014] As a further improvement, the guide wheel groups are arranged closely above and below.
[0015] As a further improvement, the guide wheel is provided with a limiting groove or a limiting protrusion for front and rear limiting cooperation with the guide rail on the fixed column.
[0016] As a further improvement, the limiting groove is a V-shaped groove, and the limiting protrusion is a V-shaped protrusion.
[0017] As a further improvement, the outer periphery of the guide wheel is provided with a wear-resistant layer or the guide wheel is made of a wear-resistant material.
[0018] The beneficial effects of the utility model are as follows: the utility model improves the fixed column of the platform installation device, and belongs to an improved invention. In the process of the lifting column lifting up and down, the guide wheel group cooperates with the guide rail on the lifting column to guide up and down. Compared with the prior art, the reliability of the guide wheel and the guide rail is better, and generally smaller dust will not affect the guide wheel from crossing. In the laboratory, the applicant conducted environmental tests such as 70°C high temperature, -40°C low temperature, and rain test, and the up and down lifting was 300,000 times without any fault. In this way, according to the average frequency of 40 times of lifting and lowering of each platform per day, the platform can be used for 20 years, which has exceeded the service life of the equipment.
[0019] In order to achieve the above-mentioned purpose, the technical solution of the lifting column of the platform safety device provided by the utility model is:
[0020] A lifting column of a platform safety device comprises a lifting column body, the lifting column body is provided with a guide rail for guiding and cooperating along a guide wheel group arranged on a fixed column, and the guide rail has a mounting surface mounted on the lifting column.
[0021] As a further improvement, the guide rail includes two rails which are arranged in parallel and spaced apart from each other on the left and right sides.
[0022] The beneficial effect of the utility model is that the utility model improves the lifting column of the platform installation device, which belongs to an improved invention. In the process of lifting the lifting column up and down, the guide wheel group cooperates with the guide rail on the lifting column to guide up and down. Compared with the prior art, the reliability of the guide wheel and the guide rail is better, and generally smaller dust will not affect the crossing of the guide wheel. In the laboratory, the applicant conducted environmental tests such as 70°C high temperature, -40°C low temperature, and rain test, and the up and down lifting was 300,000 times without any fault. In this way, according to the average frequency of 40 times of lifting and lowering of each platform per day, it can be used by the platform for 20 years, which is far beyond the actual needs of the platform.
[0023] In order to achieve the above-mentioned purpose, the technical solution of the platform safety device provided by the utility model is:
[0024] A platform safety device comprises a fixed column and a lifting column, wherein the fixed column comprises a fixed column body, and the lifting column comprises a lifting column body. One side of the upper section of the fixed column body is provided with at least two groups of guide wheel groups arranged vertically, and each group of guide wheel groups comprises at least two guide wheels arranged at intervals on the left and right and respectively used for guiding and moving up and down along the guide rails on the lifting column. The lifting column body is provided with guide rails for guiding and cooperating along the guide wheel groups arranged on the fixed column, and the guide rails have a mounting surface mounted on the lifting column.
[0025] As a further improvement, the guide rails include two rails spaced apart in parallel on the left and right sides, and at least two guide wheel groups include two inner guide wheels respectively used for moving along the inner sides of the two guide rails spaced apart in parallel on the left and right sides.
[0026] As a further improvement, at least one set of guide wheel assemblies further comprises at least one clamping guide wheel for moving along the outer side of at least one guide rail.
[0027] As a further improvement, the positions of the clamping guide wheel and the two upper and lower adjacent inner guide wheels are staggered in a corresponding manner.
[0028] As a further improvement, at least two groups of guide wheel assemblies include two outer guide wheels respectively used for moving along the outer sides of two guide rails arranged in parallel and spaced apart on the left and right sides.
[0029] As a further improvement, at least one set of guide wheel assemblies further comprises at least one clamping guide wheel for moving along the inner side of at least one guide rail.
[0030] As a further improvement, the positions of the clamping guide wheel and the two upper and lower adjacent outer guide wheels are staggered accordingly.
[0031] As a further improvement, the guide wheel groups are arranged closely above and below.
[0032] As a further improvement, the guide wheel is provided with a limiting groove or a limiting protrusion for front and rear limiting cooperation with the guide rail on the fixed column.
[0033] As a further improvement, the limiting groove is a V-shaped groove, and the limiting protrusion is a V-shaped protrusion.
[0034] As a further improvement, the outer periphery of the guide wheel is provided with a wear-resistant layer or the guide wheel is made of a wear-resistant material.
[0035] The beneficial effects of the utility model are as follows: the utility model improves the platform safety device in the prior art and belongs to an improved invention. In the process of the lifting column lifting up and down, the guide wheel group cooperates with the guide rail on the lifting column to guide up and down. Compared with the prior art, the reliability of the guide wheel and the guide rail is better, and generally smaller dust will not affect the guide wheel from crossing. In the laboratory, the applicant conducted environmental tests such as 70°C high temperature, -40°C low temperature, and rain test, and the up and down lifting was 300,000 times without any fault. In this way, according to the average frequency of 40 times of lifting and lowering of each platform per day, the platform can be used for 20 years, which has exceeded the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0036] Figure 1 This is a structural schematic diagram of one embodiment of the fixed column of the platform safety device in the utility model;
[0037] Figure 2 This is a structural schematic diagram of one embodiment of the lifting column of the platform safety device in the utility model;
[0038] Figure 3 for Figure 2 Top view of the middle lifting column;
[0039] Figure 4 for Figure 1 The fixed column and Figure 2 A top view of the lifting column in the mating state;
[0040] Figure 5 It is a structural schematic diagram of another embodiment of the fixing column of the platform safety device in the utility model;
[0041] Figure 6 for Figure 5 The fixed column and Figure 2 A top view of the lifting column in the mating state;
[0042] Figure 7 It is a structural schematic diagram of another embodiment of the fixing column of the platform safety device in the utility model.
[0043] Description of reference numerals:
[0044] 1. Fixed column; 101. Guide wheel; 102. Driving motor; 103. Transmission system; 104. Driving handle; 2. Lifting column; 201. Guide rail. DETAILED DESCRIPTION
[0045] The present invention is further described in detail below in conjunction with the embodiments.
[0046] In order to solve the problem that the existing platform safety device using a screw module and a ball slider to guide the lifting column is prone to dust intrusion and jamming, the basic technical concept of the utility model is to change the related structure of the guide matching between the fixed column and the lifting column into a more reliable wheel-rail matching relationship.
[0047] Specific embodiment 1 of the platform safety device provided by the utility model:
[0048] In order to more clearly illustrate the present invention, the lifting direction of the lifting column is first defined as the up and down direction, the direction used to connect the protective parts (pull rope, isolation rope, protective belt) during installation is the left and right direction, and the plane perpendicular to the up and down and left and right directions is the front and back direction, which corresponds to the direction for passengers to get on and off the vehicle, and is also the direction perpendicular to the drawing paper in the figure.
[0049] The platform safety device provided in this embodiment includes a fixed column and a lifting column. The fixed column can be fixed on the installation foundation of the platform, and the lifting column and the fixed column can be lifted up and down in coordination. Figure 1 As shown, the fixed column 1 includes a square fixed column body, one side of the upper section of the fixed column body ( Figure 1 A plurality of rotatable guide wheels 101 are arranged on one side of the front and rear sides of the central fixed column body, and a pair of guide wheels arranged at intervals on the left and right sides constitute a guide wheel group. Figure 2As shown, the lifting column 2 includes a lifting column body, on which a guide rail 201 is arranged. The guide rail 201 is provided with two parallelly arranged left and right sides. Figure 3 As shown, the two guide rails include two opposite sides (inner sides) and two opposite sides (outer sides), such as Figure 4 As shown, the two guide wheels 101 in each guide wheel group in this embodiment move along the outer side of the guide rail respectively, which is equivalent to clamping the outer side of the guide rail 201, thereby playing a role of stable left and right limit and up and down guidance. At this time, the guide wheel 101 is defined as an outer guide wheel.
[0050] In order to ensure that the guide wheel 101 can still support the fixed column 1 after the lifting column 2 is raised, at least two guide wheel groups should be arranged in an upper and lower arrangement, and the distance between two adjacent guide wheels 101 above and below forms a support arm.
[0051] When the utility model is in use, the guide rail 201 and the guide wheel 101 cooperate with each other, and have better reliability, and general dust will not affect the guide wheel 101 from crossing the guide rail 201. In the laboratory, the applicant conducted environmental tests such as 70°C high temperature, -40°C low temperature, and rain test, and the up and down lifting was 300,000 times without failure. In this way, according to the average frequency of 40 times of lifting and lowering per platform per day, the platform can be used for 20 years, which has exceeded the service life of the equipment.
[0052] As an optional implementation, on the basis that the guide wheel 101 is an outer guide wheel, the guide wheel assembly can also be increased to cooperate with the outer guide wheel on one side to play the role of a clamping guide wheel for clamping a single guide rail 201. The clamping guide wheel and the corresponding outer guide wheel cooperate to further limit the relative relationship between the guide wheel and the guide rail, have a better guiding and straightening effect, and improve stability. Figure 5 and Figure 6 As shown, the outer guide wheel and the clamping guide wheel cooperate with the clamping guide rail to provide better stability. Figure 5 There is a one-to-one correspondence between the outer guide wheel and the clamping guide wheel. In actual application, according to the tension of the protective member connected to the lifting column, only one clamping guide wheel is provided for the guide rail 201 on one side, which can also improve the stability to a certain extent.
[0053] The clamping guide wheel can be Figure 5 As shown, the outer guide wheel is arranged at the same height. In other embodiments, the outer guide wheel can also be arranged at the same height as the outer guide wheel. Figure 7 As shown, the positions of the clamping guide wheel and the two upper and lower adjacent outer guide wheels are staggered up and down. At this time, the clamping guide wheel and the outer guide wheels can form a triangular clamping structure with better stability.
[0054] Of course, in other embodiments, the installation position of the guide rail 201 can also be moved outward, and the guide wheel 101 is respectively guided and matched with the two opposite sides (inner sides) of the guide rail 201, that is, the guide wheel group internally supports two guide rails 201, and in this case, the guide wheel 101 is defined as the inner guide wheel. The arrangement of the inner guide wheel can be consistent with the outer guide wheel described above.
[0055] On the basis of setting the inner guide wheel, a clamping guide wheel moving along the outer side of the guide rail 201 can also be selectively set to cooperate with the inner guide wheel to achieve a clamping effect. In this case, the setting of the clamping guide wheel can be consistent with the clamping guide wheel adapted to the outer guide wheel.
[0056] In some embodiments, one guide rail 201 may be provided. In this case, a pair of guide wheels 101 are provided. The guide wheels 101 clamp the two opposite sides of the guide rail 201 and can also play a role of limiting guidance.
[0057] In order to improve stability, the guide wheel group on the top of the fixed column 1 should be set up close to each other, such as Figure 1 As shown, after the lifting column 2 rises, the guide wheel at A plays a major role in bearing force, so this dense setting can ensure that the lifting column 2 remains stable after rising.
[0058] In addition to the top of the fixed column 1, the guide wheels 101 in this embodiment are also distributed in the middle and bottom of the fixed column 1, so that when the lifting column 2 is in the lowered position, the top, middle and bottom of the lifting column 2 can be supported by the guide wheels 101, especially the top and bottom support, so there is no long lever arm. Even if the lifting column 2 is subjected to large eccentric loads on the left and right sides, the lifting column 2 will not easily tilt to one side, greatly reducing the probability of jamming and damage when the equipment is raised.
[0059] In addition, if Figure 4 As shown, the guide wheel 101 in this embodiment is a groove wheel with a limiting groove set on the periphery, and the guide rail 201 is provided with a protruding structure that cooperates with the limiting groove. At this time, the guide wheel 101 and the guide rail 201 cooperate with each other, support and limit each other in the front and rear directions, and improve the force stability in the front and rear directions. Of course, at this time, the positions of the limiting groove and the matching structure are interchanged, that is, the limiting groove is set on the guide rail, and the matching structure is set on the guide wheel, which can achieve the same effect.
[0060] Regarding the form of the limit groove, it can be specifically as follows Figure 4 The V-shaped groove shown in the figure has a V-shaped protrusion for matching with the V-shaped groove. At this time, the V-shaped groove can better improve the matching accuracy of the guide wheel and the guide rail, and evenly decompose the matching force of the two to the front and back and left and right directions. Of course, the limit groove can also adopt other forms such as U-shaped grooves. It should be noted that the V-shaped emphasized here refers to the shape of the cross section of the guide wheel and the guide rail.
[0061] The guide rail 201 can be processed separately and mounted on the lifting column 2 through a guide rail connection structure, that is, the guide rail should be provided with a mounting surface that can be mounted on the lifting column. The specific guide rail connection structure can be, for example, in the form of bolt connection, riveting, etc.
[0062] It should also be noted that the lifting and lowering driving method of the lifting column 2 can be as follows: Figure 1 The drive motor 102 arranged on the horizontal axis shown is in the form of a transmission system 103 arranged on the side, and the transmission system 103 can be a belt drive or a chain drive. When the transmission system 103 is a chain drive system, a driving wheel, a driven wheel and a transmission chain can be set on the fixed column, and the drive motor 102 drives the transmission chain to move up and down through the driving wheel. A driving handle 104 is fixed on the transmission chain, and is connected to the lifting column 2 through the driving handle 104, so that the driving force is transmitted to the lifting column 2.
[0063] In order to improve the wear resistance of the guide wheel, the guide wheel in this embodiment is selected to be made of wear-resistant material, and the wear-resistant material can be wear-resistant steel or wear-resistant engineering plastic in the prior art, so that the guide wheel will not be easily damaged by the friction between the guide wheel and the guide rail during long-term use. In other embodiments, the guide wheel can also be selected to have a wear-resistant layer on the outer surface. The wear-resistant layer here can be a wear-resistant material layer, such as a hard chrome layer, or a hardened layer formed by quenching treatment, which is arranged on the outer surface of the guide wheel by laser coating or plating.
[0064] Specific embodiments of the fixed column of the platform safety device in the utility model:
[0065] The structure of the fixed column of the platform safety device is consistent with the structure of the fixed column in the above platform safety device embodiment, and will not be described in detail here.
[0066] Specific embodiments of the lifting column of the platform safety device in the utility model:
[0067] The structure of the lifting column of the platform safety device is consistent with the structure of the lifting column in the above platform safety device embodiment, and will not be described in detail here.
[0068] Finally, it should be noted that the above is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments without creative work, or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A fixed column of a platform safety device, comprising a fixed column body, characterized in that: At least two groups of guide wheel groups arranged vertically are arranged on one side of the upper section of the fixed column body, and each group of guide wheel groups includes at least two guide wheels arranged at intervals on the left and right and used for guiding and moving up and down along the guide rails on the lifting column.
2. The fixed column of the platform safety device according to claim 1, characterized in that: At least two guide wheel groups include two inner guide wheels respectively used for moving along the inner sides of two guide rails arranged in parallel and spaced apart from each other on the left and right sides.
3. The fixed column of the platform safety device according to claim 2, characterized in that: At least one set of guide wheel assemblies further includes at least one clamping guide wheel for moving along the outer side of at least one guide rail.
4. The fixed column of the platform safety device according to claim 3, characterized in that: The positions of the clamping guide wheel and the two upper and lower adjacent inner guide wheels are staggered and arranged correspondingly.
5. The fixed column of the platform safety device according to claim 1, characterized in that: At least two guide wheel groups include two outer guide wheels respectively used for moving along the outer sides of two guide rails arranged in parallel and spaced apart from each other on the left and right sides.
6. The fixed column of the platform safety device according to claim 5, characterized in that: At least one set of guide wheel assemblies further includes at least one clamping guide wheel for moving along the inner side of at least one guide rail.
7. The fixed column of the platform safety device according to claim 6, characterized in that: The positions of the clamping guide wheel and the two upper and lower adjacent outer guide wheels are staggered and arranged correspondingly.
8. The fixed column of the platform safety device according to any one of claims 1 to 7, characterized in that: The guide wheel groups are arranged closely above and below.
9. The fixed column of the platform safety device according to any one of claims 1 to 7, characterized in that: The guide wheel is provided with a limiting groove or a limiting protrusion for front and rear limiting cooperation with the guide rail on the fixed column.
10. The fixed column of the platform safety device according to claim 9, characterized in that: The limiting groove is a V-shaped groove, and the limiting protrusion is a V-shaped protrusion.
11. The fixed column of the platform safety device according to any one of claims 1 to 7, characterized in that: The outer periphery of the guide wheel is provided with a wear-resistant layer or the guide wheel is made of a wear-resistant material.
12. A lifting column of a platform safety device, comprising a lifting column body, characterized in that: A guide rail for guiding and cooperating along a guide wheel assembly arranged on the fixed column is arranged on the lifting column body, and the guide rail has a mounting surface mounted on the lifting column.
13. The lifting column of the platform safety device according to claim 12, characterized in that: The guide rails include two rails which are arranged in parallel and spaced apart on the left and right sides.
14. A platform safety device, comprising a fixed column and a lifting column, characterized in that: The fixed column is the fixed column of the platform safety device in any one of claims 1 to 11, and the lifting column is the lifting column of the platform safety device in claim 12 or 13.