Bent pipe supporting device
By designing a detachable and connected bend support device, the extrusion deformation and cracking problems during the forming of the handrail bend is solved, and a smoother bend transition and passenger safety is achieved, meeting the aesthetic and safety requirements of the rail transit interior.
Patent Information
- Application Number
- CN202420788513.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-16
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-04-16
AI Technical Summary
In rail transit, the handrail bend pipe is prone to extrusion deformation or cracking when forming, which makes it difficult to meet passenger safety hazards and aesthetic requirements.
Design a pipe bending support device, including a fixed shaft sleeve and a movable head, which can be detachable connection through a hinged ball head and connecting hole. The movable head matches the inner diameter of the bent pipe, supports the inner wall of the bent pipe, reduces deformation and cracking, and provides 0-180 ° bending angle adjustment.
It effectively avoids deformation and cracking of the round edges of the bent pipe, improves the smooth transition of the handrail bent pipe forming and passenger comfort, and meets the aesthetic and safety requirements of the rail transit interior.
Smart Images
Figure CN222153501U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of handrail welding, and in particular relates to a bent pipe supporting device. Background Art
[0002] During the operation of rail transit, especially when the train is accelerating or decelerating, passengers may become unstable due to the effect of inertia. Therefore, in order to avoid collisions that pose a great safety hazard to passengers, and out of consideration for the safety of passengers taking the subway, manufacturers will install handrails inside the subway cars. The handrails erected inside the car can provide passengers with support for grasping, leaning on or holding on, thereby improving the safety of the train.
[0003] At present, with the improvement of aesthetic requirements for rail transit interior parts, handrails are required to have beautiful shapes while completing their basic functions. Different designs are made for the appearance of handrails. Different installation methods and design requirements result in handrails having different shapes and curvatures.
[0004] However, the handrail is made of a hollow tube and is bent. When external pressure is applied and the material properties of the tube itself are added, the tube may be squeezed, deformed or even cracked during forming. Therefore, there is an urgent need for a device that can support the inner wall of the handrail during the handrail bending process. Utility Model Content
[0005] In order to solve the problem in the above-mentioned prior art that the operating efficiency of the shunting locomotive bogie is difficult to improve due to its heavy deadweight; the utility model provides a bent pipe support device, which eliminates the frame and the secondary suspension device, and directly connects the wheelset to the car body through the connecting seat on the axle box body, thereby greatly reducing the unsprung mass and sprung mass of the bogie.
[0006] The utility model provides a curved pipe supporting device, and the specific technical scheme is as follows, comprising: a fixed shaft sleeve, a movable head;
[0007] The fixed sleeve is a columnar structure, one end of which is hingedly provided with the movable head;
[0008] The movable head is movably arranged relative to the hinge point of the fixed shaft sleeve, and the movable head matches the inner diameter of the bent pipe and is arranged closely against the inner wall of the bent pipe for support.
[0009] Preferably, a connecting structure is provided at the bottom of the movable head and is detachably connected to the fixed sleeve.
[0010] Preferably, the connection structure at the bottom of the movable head is specifically an articulated ball head, one end of the fixed sleeve is provided with a connection hole matching the articulated ball head, and the movable head is arranged on the fixed sleeve by plugging.
[0011] Preferably, the top of the movable head is also provided with the connecting hole.
[0012] Preferably, a plurality of movable heads are arranged on the fixed sleeve along the axial direction, and the number of movable heads can be determined according to the actual required length of the bent pipe.
[0013] Preferably, after a plurality of the movable heads are assembled, the bending angle range of the bent pipe is 0-180°.
[0014] Preferably, the contact surface between the movable head and the inner wall of the bent pipe is a curved surface.
[0015] Preferably, the upper and lower surfaces of the movable head are flat.
[0016] Preferably, the fixed sleeve and the movable head are made of metal material.
[0017] Preferably, the fixed sleeve is designed to be a hollow structure along the axial direction.
[0018] Compared with the prior art, the curved pipe support device provided by the present technical solution can play a supporting role inside the curved pipe when the curvature of the handrail curved pipe is formed, thereby avoiding quality defects such as round edge deformation or cracking of the curved pipe, making the smooth transition of the handrail curved pipe after forming smoother, more convenient for passengers to grasp, and improving passenger comfort. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0020] Figure 1 It is a front view of a curved pipe supporting device in a specific embodiment;
[0021] Figure 2 It is a schematic diagram of the cutaway structure.
[0022] The specific figures are:
[0023] 1. Fixed sleeve; 2. Rib plate; 3. Articulated ball head; 4. Connecting hole. DETAILED DESCRIPTION
[0024] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0025] It should be noted that when an element is referred to as being "fixed on" or "set on" another element, it can be directly on the other element or indirectly set on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
[0026] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.
[0028] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.
[0029] Please refer to Figure 1 to Figure 2 , a specific curved pipe support device is described for the technical solution of the utility model, the structure of the curved pipe support device includes: a fixed sleeve 1, a movable head 2;
[0030] like Figure 1 As shown, the movable head 2 is arranged at one end of the fixed sleeve 1, and the movable head 2 is located in the extension direction of the center line of the fixed sleeve 1;
[0031] The fixed sleeve 1 is a circular cylindrical structure, and the movable head 2 is hinged at one end thereof. The fixed sleeve 1 and the movable head 2 are in a straight line when entering the handrail. When the handrail is bent under the action of external force, since the movable head 2 is matched with the inner diameter of the bent pipe, the bent pipe is closely supported by the movable head 2, which greatly reduces the occurrence of bending deformation, cracking, etc. of the bent pipe.
[0032] As a preferred embodiment, in the present technical solution, in order to bend handrails of different diameters and shapes, the movable head 2 is detachably connected to the fixed sleeve 1. Specifically, a connecting structure is provided at the bottom of the movable head 2 to achieve a detachable connection with the fixed sleeve 1. The movable head 2 of different shapes and sizes customized according to different needs is detachably connected to the fixed sleeve 1 to meet the customization needs of customers.
[0033] Further, such as Figure 1 and Figure 2 As shown, in the present embodiment, the connection structure provided at the bottom of the movable head 2 is specifically an articulated ball head 3, and correspondingly, a connection hole 4 matching the articulated ball head 3 is provided at one end of the fixed sleeve 1 connected to the movable head 2, and the movable head 2 is detachably connected to the fixed sleeve 1 by inserting the articulated ball head 3 provided at the bottom into the connection hole 4; due to the insertion of the articulated ball head 3, the movable head 2 can be adjusted in angle relative to the fixed sleeve 1 at the connection point, and the ball head design can allow the movable head 2 to have a larger angle adjustment range.
[0034] Furthermore, Figure 1 and Figure 2 As shown, in this embodiment, the top of the movable head 2 is also provided with the connecting hole 4 which is the same as the end of the fixed sleeve 1 .
[0035] This is preferred, because the connecting hole 4 is also provided on the top of the movable head 2, and a plurality of the movable heads 2 can be combined and provided on the fixed sleeve 1 along the axial direction, and the number of the movable heads 2 is determined according to the actual required length of the handrail bent pipe, and can be freely and flexibly combined to realize customized production.
[0036] Furthermore, according to the flexible assembly quantity of the movable heads 2, the bending angle range of the bent pipe is 0-180°. When the required bending angle is larger, the required quantity of the movable heads 2 also increases.
[0037] As a preference, in order to support the handrail during the pipe bending process to avoid deformation or wrinkles, in this embodiment, as Figure 1 and Figure 2 As shown, the part where the side of the movable head 2 contacts the inner wall of the handrail elbow is a curved surface; more specifically, it is an outwardly curved surface for providing arc support to the inner wall of the handrail pipe to avoid deformation caused by pressure concentration due to support of the elbow by sharp contact points.
[0038] Preferably, the bending angle between the movable heads 2 is determined by the rotation angle of the articulated ball head 3. In order to obtain a larger bending angle, the movable head 2 Figure 1 and Figure 2 As shown, in this embodiment, the upper and lower surfaces of the movable head 2 are flat to avoid interference caused by other anisotropic surfaces.
[0039] Preferably, since the main function of the movable head 2 is to provide abutment support in the handrail bend, the hardness of the movable head 2 is required to be relatively high. Only when the movable head 2 has sufficient hardness can it offset the deformation force generated by the bend. Therefore, in the present example, the movable head 2 is made of metal material, more specifically, it is made of high-hardness metal material and has the ability to abut against the pressure of the bend.
[0040] More preferably, in order to make the bending pipe support device provided by the technical solution lightweight and reduce the labor burden of the operator during the bending operation, as Figure 1 and Figure 2 As shown, in this embodiment, the fixed sleeve 1 is designed as a hollow structure along the axial direction.
[0041] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A curved pipe support device, characterized in that: include: Fixed shaft sleeve (1), movable head; The fixed shaft sleeve (1) is a columnar structure, one end of which is hingedly provided with the movable head; The movable head is movably arranged relative to the hinge point of the fixed shaft sleeve (1), and the movable head matches the inner diameter of the bent pipe and is arranged closely to the inner wall of the bent pipe for support.
2. The curved pipe support device according to claim 1, characterized in that: The bottom of the movable head is provided with a connection structure which is detachably connected to the fixed shaft sleeve (1).
3. The curved pipe support device according to claim 2, characterized in that: The connection structure at the bottom of the movable head is specifically a hinged ball head (3); one end of the fixed sleeve (1) is provided with a connection hole (4) matching the hinged ball head (3); and the movable head is arranged on the fixed sleeve (1) by plugging.
4. The curved pipe support device according to claim 3, characterized in that: The top of the movable head is also provided with the connecting hole (4).
5. The curved pipe support device according to claim 4, characterized in that: A plurality of movable heads are arranged on the fixed shaft sleeve (1) along the axial direction, and the number of movable heads can be determined according to the actual required length of the bent pipe.
6. The curved pipe support device according to claim 5, characterized in that: After a number of the movable heads are assembled, the bending angle range of the bent pipe is 0-180°.
7. The curved pipe support device according to claim 1, characterized in that: The contact surface between the movable head and the inner wall of the curved pipe is a curved surface.
8. The curved pipe support device according to claim 7, characterized in that: The upper and lower sides of the movable head are flat.
9. The curved pipe support device according to any one of claims 1 to 8, characterized in that: The fixed shaft sleeve (1) and the movable head are made of metal material.
10. The curved pipe support device according to claim 9, characterized in that: The fixed shaft sleeve (1) is designed to be a hollow structure along the axial direction.