Twist handrail welding tool

Abstract

The utility model discloses a twist handrail welding tool. The twist handrail welding tool comprises a bottom plate, a rib plate and a limiting plate. The rib plates are parallel to each other and are vertically arranged on the bottom plate, and the top of each rib plate is further provided with a sunken part matched with the pipe diameter of the handrail and used for supporting the handrail in the horizontal direction, so that the central axis of the handrail is parallel to the bottom plate; limiting holes are further formed in the rib plates, and the limiting plate limits and fixes the handrail through the limiting holes. The rib plate which has the supporting and abutting effects on the twist handrail is arranged on the bottom plate, and the twist handrail is limited and fixed through the limiting plate, so that a bent pipe structure with a special-shaped radian can be accurately welded and formed according to a drawing effectively, and the machining efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of handrail welding, in particular to a welding tool for a twisted handrail. Background Art

[0002] As one of the main modes of public transportation in modern cities, in order to better meet the demand for greater transportation capacity, the seats inside the subway are usually arranged on both sides, with people standing in the middle; when the train starts or stops, the passengers may become unstable due to the action of inertia. If a collision occurs, it will bring great safety hazards to the passengers and reduce the safety of customers riding the subway. For people's safety considerations, handrails will be installed inside the subway car to provide passengers with support for grasping, leaning on or holding on.

[0003] At present, in order to facilitate more people to use the handrail and meet the needs of aesthetics, a twisted handrail with a bent pipe wrapped in the middle is set up. However, due to the heterogeneous style of the bent pipe of the twisted handrail, it is difficult to process.

[0004] Therefore, it is very necessary to provide a twist handrail welding tooling which has a reasonable structure, ensures welding quality, has high work efficiency, ensures consistent coaxiality, and is convenient and quick to use. Utility Model Content

[0005] In order to solve the problem in the above-mentioned prior art that the operating efficiency is difficult to improve due to the heavy deadweight of the shunting locomotive bogie; the utility model provides a twisted handrail welding tool, 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 twist handrail welding tool, the specific technical scheme is as follows: a bottom plate, a rib plate, and a limit plate;

[0007] The ribs are parallel to each other and vertically arranged on the bottom plate, and a concave portion matching the diameter of the handrail is also arranged on the top of the rib to support the handrail in the horizontal direction so that the central axis of the handrail is parallel to the bottom plate;

[0008] The rib plate is also provided with a limiting hole, and the limiting plate limits and fixes the armrest through the limiting hole.

[0009] Preferably, the limit plate specifically includes: an end straight pipe limit plate and a middle bent pipe limit plate.

[0010] As a preferred embodiment, the rib plate specifically includes: an end straight tube rib plate and a middle curved tube rib plate;

[0011] The ribs are arranged along the axis direction of the handrail, the middle bent tube ribs are arranged in the middle of the bottom plate, and the end straight tube ribs are arranged at both ends.

[0012] Preferably, the end straight tube rib plate and the middle bent tube rib plate are both symmetrically distributed on the bottom plate, and the end straight tube rib plate and the middle bent tube rib plate are colinear with the axis of the twisted handrail.

[0013] Preferably, the intermediate pipe bending rib plate is detachably arranged on the bottom plate through a split base, and the intermediate pipe bending rib plate is arranged in a split manner, including: a pipe bending fixed base, a pipe bending movable rib plate;

[0014] The elbow fixing base is fixedly arranged on the bottom plate;

[0015] The bent pipe movable rib plate is detachably connected to the bent pipe fixed base via bolts.

[0016] Preferably, the bent pipe fixing base is in the vertical direction, and the limiting hole is arranged as a waist hole structure.

[0017] Preferably, the intermediate curved tube ribs further specifically include: a first intermediate curved tube rib and a second intermediate curved tube rib according to the position of the supporting handrail;

[0018] The first intermediate bend rib plate comprises: a first bend fixed base, a first bend movable rib plate;

[0019] The second intermediate bend rib plate includes: a second bend fixed base, a second bend movable rib plate

[0020] The second middle bent tube ribs are symmetrically arranged on both sides of the first middle bent tube rib along the axis direction of the handrail.

[0021] Preferably, the second bent pipe movable rib plate is a U-shaped structure, and the second bent pipe movable rib plate is provided with recessed portions matching the diameter of the handrail pipe at the tops on both sides and the middle bottom, and each of the recessed portions is provided with a limiting hole.

[0022] Preferably, the first bent pipe movable rib plate is a symmetrically distributed semicircular arc structure, the first bent pipe movable rib plate assembly is sleeved on the outer surface of the handrail bent pipe, and a groove matching the diameter of the handrail bent pipe is also provided on the semicircular arc, and each of the recessed portions is provided with a limiting hole.

[0023] Preferably, a plurality of the end straight tube ribs are distributed according to the length of the handrail.

[0024] Compared with the prior art, the beneficial effect of the present technical solution is that a rib plate that supports and abuts the twisted armrest is provided on the bottom plate, and the twisted armrest is limited and fixed by a limiting plate, so that the curved pipe structure with special-shaped arc can be accurately and effectively welded into shape in accordance with the drawing, thereby improving processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] 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.

[0026] Figure 1 It is a front view of a welding tool for twisted handrails in a specific embodiment;

[0027] Figure 2 This is a top view of the welding tooling for the middle twist handrail;

[0028] Figure 3 It is a schematic diagram of the combined structure of the end straight tube rib plate and the limit plate;

[0029] Figure 4 for Figure 3 Schematic diagram of the structure of the middle limit plate;

[0030] Figure 5 Schematic diagram of the combined structure of the second intermediate bending rib plate and the intermediate bending limit plate;

[0031] Figure 6 for Figure 5 Schematic diagram of the structure of the middle elbow stop plate;

[0032] Figure 7 Schematic diagram of the structure of the first intermediate bent tube rib plate;

[0033] Figure 8 This is a schematic diagram of the structure of the first elbow fixed base;

[0034] Fig. 9 This is a schematic diagram of the second elbow fixed base structure.

[0035] The specific figures are:

[0036] 1. Bottom plate; 2. Rib plate; 21. End straight tube rib plate; 22. Middle bent tube rib plate; 221. First middle bent tube rib plate; 222. Second middle bent tube rib plate; 2211. First bent tube fixed base; 2212. First bent tube movable rib plate; 2221. Second bent tube fixed base; 2222. Second bent tube movable rib plate; 3. Limiting plate; 31. End straight tube limiting plate; 32. Middle bent tube limiting plate. DETAILED DESCRIPTION

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] Please refer to Figures 1 to 9 , the technical solution of the utility model is specifically described as a twist handrail welding tool, including a bottom plate 1, a rib plate 2, and a limit plate 3;

[0043] like Figure 1 and Figure 2 As shown, in order to better provide support and positioning for the welding of the twisted handrail, the welding tooling provided by the present technical solution is also composed of steel plates through welding. The specific arrangement is as follows: the rib plates 2 are parallel to each other and vertically arranged on the bottom plate 1. Through the arrangement of the bottom plate 1, a support plane can be provided for the welding tooling as a whole, and it is also convenient to place the welding tooling on a special processing platform or transfer it; since the main structure of the twisted handrail is a round tube, in order to better support the welding of the twisted handrail, a recessed portion matching the diameter of the handrail is also provided on the top of the rib plate 2, which can make the handrail just placed in the recessed portion to support the handrail in the horizontal direction, so that the central axis of the handrail is parallel to the bottom plate 1, so as to avoid the handrail being in a tilted state during the welding process and causing the product to fail to meet the requirements of the drawings;

[0044] The armrest is fixed by the limiting holes provided on the rib plate 2. Specifically, a detachable connection such as a screw connection is provided between the limiting plate 3 and the limiting hole to limit and fix the armrest, which is convenient for the operator to weld and assemble the armrest.

[0045] Preferably, in the present embodiment, according to the specific structural layout of the twisted handrail, the limit plate 3 specifically subdivides different limit positions, including: an end straight tube limit plate 31, and an intermediate curved tube limit plate 32; since the end straight tube and the intermediate curved tube of the twisted handrail have different outer surface diameters, the corresponding end straight tube limit plate 31 and the intermediate curved tube limit plate 32 also have different settings on the size of the limiting tube diameters.

[0046] Similarly, in this embodiment, according to the specific structural layout of the twisted handrail, the ribs 2 are also arranged respectively and specifically include: end straight tube ribs 21, middle curved tube ribs 22;

[0047] The rib plate 2 is arranged along the axial direction of the handrail, which is the same as the structural arrangement of the twisted handrail, specifically: the middle bent tube rib plate 22 is set in the middle part of the bottom plate 1, corresponding to the middle bent tube of the twisted handrail, and the straight tubes corresponding to the twisted handrails at both ends are provided with the end straight tube rib plates 21 for abutment support.

[0048] Further, such as Figure 2As shown, from the perspective of the top view, in order to ensure the overall straightness of the twisted handrail after welding, the twisted handrail welding tooling provided in the present application, in this embodiment, the end straight tube rib plate 21 and the middle bent tube rib plate 22 are both symmetrically distributed on the bottom plate 1, and the end straight tube rib plate 21 and the middle bent tube rib plate 22 are collinear with the axis of the twisted handrail, ensuring that during the welding process, the straightness of the twisted handrail meets the requirements of the drawing.

[0049] Furthermore, if Figure 1 As shown, due to the accuracy of the twisted handrail bending profile, there are some deformation errors, in order to meet the welding requirements as much as possible; in this embodiment, the intermediate bending rib plate 22 is detachably arranged on the bottom plate 1 through a split base, and the intermediate bending rib plate 22 is arranged in a split manner, including: a bending fixed base, a bending movable rib plate;

[0050] The elbow fixing base is fixedly arranged on the bottom plate 1 by welding;

[0051] The bent pipe movable rib plate is detachably connected to the bent pipe fixed base by bolts. The split design of the bent pipe fixed base and the bent pipe movable rib plate can provide the handrail welding tooling with adjustable freedom in the length direction of the twisted handrail. In the bolt connection adjustment method, the bent pipe movable rib plate can be adjusted in the length direction by adding or subtracting gaskets to ensure that the bent pipe support of the twisted handrail meets the length of the drawing.

[0052] Furthermore, Figure 8 and Fig. 9 As shown, in this embodiment, the bent pipe fixing seat is in the vertical direction, and the limiting hole is a waist-shaped hole structure; it is possible to adjust the height of the bent pipe movable rib plate in the vertical direction, so that the twisted handrail placed thereon is kept parallel to the base plate 1 as much as possible, meeting the process requirements of the drawing.

[0053] Furthermore, if Figure 1 as well as Figure 2 As shown, due to the winding design of the middle bend of the twisted handrail, according to the specific supporting position thereof, the middle bend rib plate 22 has a more specific distinction setting, including: a first middle bend rib plate 221, a second middle bend rib plate 222;

[0054] Furthermore, due to the split design of the intermediate curved tube rib plate 22, the specific components of the first intermediate curved tube rib plate 221 and the second intermediate curved tube rib plate 222 are as follows:

[0055] The first intermediate bend rib plate 221 includes: a first bend fixed base 2211 and a first bend movable rib plate 2212;

[0056] The second intermediate bend rib plate 222 includes: a second bend fixed base 2221 and a second bend movable rib plate 2222;

[0057] The specific arrangement structure is as follows: the first middle bent tube rib plate 221 is arranged at the center of the bottom plate 1 along the axis direction of the handrail, and the second middle bent tube rib plates 222 are symmetrically arranged on both sides.

[0058] As a preferred example, Figure 5 and Figure 6 As shown, in the present embodiment, the specific structure of the second bend movable rib plate 2222 is a U-shaped structure, and the U-shaped structure of the second bend movable rib plate 2222 is arranged to cooperate with the middle bend structure of the twisted armrest, and recessed portions matching the diameter of the armrest are arranged at the tops on both sides and the middle bottom to support the middle of the twisted armrest; at the same time, each of the recessed portions is provided with a limiting hole, and each bend can be provided with a bolt connection through the limiting hole through the middle bend limiting plate 32.

[0059] Further, such as Figure 7 As shown, the specific structure of the first bend movable rib plate 2221 is a symmetrically distributed semicircular arc structure. The first bend movable rib plate 2221 is arranged in combination and sleeved on the outer surface of the handrail bend. In the semicircular arc structure, a groove matching the diameter of the handrail bend is also provided, and each of the recessed portions is provided with a limiting hole. Each bend can be bolted through the limiting hole through the intermediate bend limiting plate 32.

[0060] As a preferred example, Figure 7 As shown, the end straight tube rib plate 21 serves as a supporting structure for the end straight tubes on both sides of the twist handrail, and the twist handrail is limited by the end straight tube limiting plate 31. Since the end straight tubes have different lengths, the end straight tube rib plates 21 are used as a supporting structure for the end straight tubes, and the number of the end straight tube rib plates 21 is evenly distributed according to the length of the straight tubes of the twist handrail. Specifically, in this embodiment, Figure 1 and Figure 2 As shown, three end straight tube ribs 21 are respectively provided at both ends of the bottom plate 1, but the spacing distance is set according to the length of the straight tube.

[0061] 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 twisted handrail welding tool, characterized in that: include: Bottom plate, rib plate, limit plate; The ribs are parallel to each other and vertically arranged on the bottom plate, and a concave portion matching the diameter of the handrail is also arranged on the top of the rib to support the handrail in the horizontal direction so that the central axis of the handrail is parallel to the bottom plate; The rib plate is also provided with a limiting hole, and the limiting plate limits and fixes the armrest through the limiting hole.

2. The twist handrail welding tool according to claim 1, characterized in that: The limiting plates specifically include: end straight pipe limiting plates and middle curved pipe limiting plates.

3. The twist handrail welding tool according to claim 1, characterized in that: The ribs specifically include: end straight tube ribs and middle curved tube ribs; The ribs are arranged along the axis direction of the handrail, the middle bent tube ribs are arranged in the middle of the bottom plate, and the end straight tube ribs are arranged at both ends.

4. The twist handrail welding tool according to claim 3, characterized in that: The end straight tube rib plate and the middle bent tube rib plate are both symmetrically distributed on the bottom plate, and the end straight tube rib plate and the middle bent tube rib plate are collinear with the axis of the twisted handrail.

5. The twist handrail welding tool according to claim 4, characterized in that: The intermediate pipe bending rib plate is detachably arranged on the bottom plate through a split base, and the intermediate pipe bending rib plate is arranged in a split manner, including: a pipe bending fixed base, a pipe bending movable rib plate; The elbow fixing base is fixedly arranged on the bottom plate; The bent pipe movable rib plate is detachably connected to the bent pipe fixed base via bolts.

6. The twisted handrail welding tool according to claim 5, characterized in that: The bent pipe fixing base is in the vertical direction, and the limiting hole is arranged as a waist hole structure.

7. The twist handrail welding tool according to claim 5, characterized in that: The intermediate curved tube ribs further specifically include: a first intermediate curved tube rib and a second intermediate curved tube rib according to the position of the supporting handrail; The first intermediate bend rib plate comprises: a first bend fixed base, a first bend movable rib plate; The second intermediate bend rib plate includes: a second bend fixed base, a second bend movable rib plate The second middle bent tube ribs are symmetrically arranged on both sides of the first middle bent tube rib along the axis direction of the handrail.

8. The twist handrail welding tool according to claim 7, characterized in that: The second curved pipe movable rib plate is a U-shaped structure, and the second curved pipe movable rib plate is provided with recessed parts matching the diameter of the handrail pipe at the tops on both sides and the middle bottom, and each of the recessed parts is provided with a limiting hole.

9. The twist handrail welding tool according to claim 8, characterized in that: The first curved pipe movable rib plate is a symmetrically distributed semicircular arc structure. The first curved pipe movable rib plate assembly is sleeved on the outer surface of the handrail curved pipe, and a groove matching the diameter of the handrail curved pipe is also provided on the semicircular arc, and each of the recessed portions is provided with a limiting hole.

10. The twist handrail welding tool according to any one of claims 3 to 9, characterized in that: The end straight tube ribs are provided in a plurality according to the length distribution of the handrail.

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