Tensile connecting structure of upright post type parts for overhead line system

Abstract

The utility model belongs to the technical field of stand column connecting structures, and discloses a stand column part tensile connecting structure for an overhead line system, which comprises a boss stand column, a pipe sleeve and a connecting piece, the boss stand column comprises a connecting part and a column body which are connected, the outer surface of the column body is provided with external threads, and the column body is provided with a first through hole along a first direction and a second through hole along a second direction; the first direction is perpendicular to the second direction, internal threads matched with the external threads are arranged on the inner surface of the pipe sleeve, the column body is inserted into and in threaded connection with the pipe sleeve, two first through holes are formed in the pipe sleeve in the first direction at intervals, and two second through holes are formed in the pipe sleeve in the second direction at intervals. Wherein one connecting piece penetrates through one first through hole and one first through hole and then penetrates out of the other first through hole to be fixed, and the other connecting piece penetrates through one second through hole and one second through hole and then penetrates out of the other second through hole to be fixed. Radial stress can be evenly dispersed to the boss stand columns, stress concentration is reduced, the damage load performance is improved, the tensile property is improved, and the structure is stable.

Description

Technical Field

[0001] The utility model relates to the technical field of column connection structures, in particular to a tensile connection structure of column-type parts for contact networks. Background Art

[0002] The column parts for contact network are mainly subjected to an outward pulling force in the line. Currently, most of the column parts for contact network are made by installing pipe materials on the outer surface of the boss column, drilling holes on the pipe materials and the boss column, and connecting the boss column and the pipe materials through drilling.

[0003] However, in order to ensure that the boss column is smoothly inserted into the interior of the pipe, there is a certain gap between the boss column and the pipe in the existing connection method, and the connection is not tight enough. When subjected to a large radial force, the pipe is subjected to tension, resulting in a large stress concentration at the connection between the column and the pipe, and the stress is mostly concentrated in the gap. Since the structural strength of the boss column has decreased after drilling, it will break when subjected to excessive force. The fracture often breaks along the drilled hole in a tearing shape, causing the column body of the boss column to be damaged, affecting its use. Utility Model Content

[0004] The purpose of the utility model is to provide a tensile connection structure of column-type parts for contact network, which has excellent tensile performance.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] A tensile connection structure for column-type parts for contact network, comprising:

[0007] A boss column, the boss column comprising a connecting portion and a column body connected to each other, an external thread being provided on the outer surface of the column body, a first through-hole being provided on the column body along a first direction, and a second through-hole being provided along a second direction, wherein the first direction is perpendicular to the second direction;

[0008] a pipe sleeve, wherein the inner surface of the pipe sleeve is provided with an internal thread matching the external thread, the column is inserted and threadedly connected to the pipe sleeve, the pipe sleeve is provided with two first through holes spaced apart along the first direction, and two second through holes spaced apart along the second direction;

[0009] There are two connecting pieces, one of which passes through one of the first through-holes and the first perforation and then passes through another of the first through-holes and is fixed; the other connecting piece passes through one of the second through-holes and the second perforation and then passes through another of the second through-holes and is fixed.

[0010] Preferably, the first through-hole and the second through-hole are both arranged along the radial direction of the column.

[0011] Preferably, the two first through holes are spaced apart along the radial direction of the sleeve, and the two second through holes are spaced apart along the radial direction of the sleeve.

[0012] Preferably, the first perforation and the second perforation are spaced apart from each other.

[0013] Preferably, the axis of the first through-hole and the axis of the second through-hole are both parallel to the horizontal plane.

[0014] Preferably, the outer wall of one of the connecting parts is tightly fitted with the hole wall of the first perforation and the hole walls of the two first through holes in the circumferential direction, and the outer wall of the other connecting part is tightly fitted with the hole wall of the second perforation and the hole walls of the two second through holes in the circumferential direction.

[0015] Preferably, the first through-hole, the second through-hole, the first through-hole and the second through-hole are all processed by a drilling machine.

[0016] Preferably, the boss column and the pipe sleeve are both made of metal or alloy.

[0017] Preferably, the length of the sleeve is greater than the length of the column.

[0018] Preferably, the connecting piece is a rivet.

[0019] Beneficial effects of the utility model:

[0020] The utility model provides a tensile connection structure of column-type parts for contact network, comprising: a boss column, a pipe sleeve and a connecting piece, the boss column comprises a connecting portion and a column body connected to each other, an external thread is provided on the outer surface of the column body, a first through-hole is provided on the column body along a first direction, and a second through-hole is provided along a second direction, the first direction is perpendicular to the second direction, an internal thread is provided on the inner surface of the pipe sleeve that matches the external thread, the column body is inserted and threadedly connected to the pipe sleeve, the pipe sleeve is provided with two first through-holes at intervals along the first direction, and two second through-holes are provided at intervals along the second direction, and two connecting pieces are provided, one of which passes through a first through-hole and a first through-hole Then it passes through another first through hole and is fixed, and another connecting piece passes through a second through hole and the second through hole and then passes through another second through hole and is fixed; two connecting pieces are used to cross-connect the column and the pipe sleeve, and the column is threadedly connected to the pipe sleeve to prevent a gap from being generated between the column and the pipe sleeve, thereby evenly distributing the radial force to the entire boss column, which can greatly reduce the stress concentration of the first through hole and the second through hole, improve its destructive load performance, improve the tensile performance, avoid column breakage, make the structure more stable, and have a better fit, and can give full play to the mechanical properties of a tensile connection structure of column-type parts for contact network. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1This is a structural diagram of a tensile connection structure of column-type parts for a contact network provided by an embodiment of the utility model;

[0022] Figure 2 yes Figure 1 A partial enlarged view of

[0023] Figure 3 It is a structural schematic diagram of the boss column provided by an embodiment of the utility model.

[0024] In the picture:

[0025] 1. Boss column; 11. Column; 2. Pipe sleeve; 3. Connector. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0027] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0028] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0029] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0030] In the existing technology, there is a certain gap between the boss column and the pipe in the connection structure of column-type parts, and the connection is not tight enough. When subjected to a large radial force, the pipe is subjected to tension, resulting in a large stress concentration at the connection between the column and the pipe, and the stress is mostly concentrated in the gap. Since the structural strength of the boss column has decreased after drilling, it will break when subjected to excessive force. The fracture often breaks in a tearing shape along the drilled hole, causing the column body of the boss column to be damaged, affecting its use.

[0031] Therefore, this embodiment provides a tensile connection structure of column-type parts for contact network, which has excellent tensile performance.

[0032] See also Figure 1-Figure 3 A tensile connection structure for column-type parts for contact network includes a boss column 1, a sleeve and a connector 3, wherein the sleeve sleeve 2 is arranged on the outer surface of the boss column 1, and the connector 3 is used to connect the boss column 1 and the sleeve.

[0033] For example, the boss column 1 and the pipe sleeve 2 are both made of metal or alloy. Preferably, metal or alloy with higher hardness, such as iron, pig iron or steel, is selected to improve the overall structural strength.

[0034] Specifically, see Figure 3 The boss column 1 includes a connecting portion and a column 11 connected to each other. The outer surface of the column 11 is provided with an external thread. The column 11 is provided with a first through hole along the first direction and a second through hole along the second direction. The first direction is perpendicular to the second direction, and the first through hole and the second through hole are spaced apart up and down.

[0035] Adaptively, the inner surface of the pipe sleeve 2 is provided with an internal thread matching the external thread. The column 11 is inserted into the interior of the pipe sleeve 2 and is threadedly connected to the pipe sleeve 2. The connection strength is high, and the stress concentration is reduced through the tight fit of the threaded connection. Furthermore, the pipe sleeve 2 is provided with two first through holes at intervals along the first direction, and two second through holes are provided at intervals along the second direction.

[0036] Preferably, the first through-hole, the second through-hole, the first through-hole and the second through-hole are all processed by a drilling machine with high processing precision.

[0037] Further preferably, the length of the sleeve is greater than the length of the column 11, so as to avoid obstruction of subsequent connection of the sleeve with other structures after the column 11 is inserted into and connected to the interior of the sleeve.

[0038] This embodiment provides two connecting members 3, one end of one of the connecting members 3 passes through one of the first through holes and then into the first through hole, passes through the other first through hole and then is fixed, so as to connect the boss column 1 and the pipe sleeve 2. Furthermore, one end of the other connecting member 3 passes through one of the second through holes and then into the second through hole, passes through the other second through hole and then is fixed, so as to further fix the boss column 1 and the pipe sleeve 2.

[0039] Preferably, the connecting member 3 in this embodiment is a rivet, which has a greater connection strength.

[0040] It should be noted that the outer wall of one of the connecting parts 3 is tightly matched with the hole wall of the first perforation and the hole wall of the two first through holes in the circumferential direction to prevent the existence of a gap between the connecting part 3 and the column 11 and the pipe sleeve 2, and optimize the degree of fit to make the connection between the boss column 1 and the pipe sleeve 2 more stable. Adaptively, the outer wall of the other connecting part 3 is tightly matched with the hole wall of the second perforation and the hole wall of the two second through holes in the circumferential direction to prevent the existence of a gap between the connecting part 3 and the column 11 and the pipe sleeve 2, and optimize the degree of fit to further stabilize the connection between the boss column 1 and the pipe sleeve 2.

[0041] With the above-described structural arrangement, one end of one rivet is passed through one of the first through-holes and then into the first through-hole, and then exits from the other first through-hole. The rivet is then riveted with a rivet gun, thereby connecting the boss column 1 and the pipe sleeve 2. Another end of another rivet is passed through one of the second through-holes and then into the second through-hole, and then exits from the other second through-hole. The rivet is then riveted with a rivet gun, further connecting and fixing the boss column 1 and the pipe sleeve 2. The rivet connection cooperates with the threaded connection to further achieve a reliable connection while reducing stress concentration.

[0042] Preferably, the first perforation and the second perforation are both arranged along the radial direction of the column 11. After the sleeve is subjected to tension, under the action of the two connecting parts 3, the radial force of the boss column 1 is uniform, which can prevent the first perforation or the second perforation from breaking or even tearing to a certain extent, thereby improving its destructive load performance.

[0043] Further preferably, the two first through holes are arranged at intervals along the radial direction of the pipe sleeve 2, and the two second through holes are arranged at intervals along the radial direction of the pipe sleeve 2, that is, the two first through holes are opposite to each other in the radial direction of the sleeve, and the two second through holes are opposite to each other in the radial direction of the sleeve, and then after the sleeve is subjected to tension, the radial tension of the sleeve on the boss column 1 is uniform, further improving the failure load performance.

[0044] Optionally, the axis of the first perforation and the axis of the second perforation are both parallel to the horizontal plane, that is, the first perforation and the second perforation are in a "cross" shape, thereby further ensuring that the radial force of the boss column 1 is uniform, preventing the first perforation or the second perforation from breaking or even tearing to a certain extent, and improving its destructive load performance.

[0045] The present embodiment provides a tensile connection structure for column-type parts for contact networks, which uses two rivets to connect the column 11 and the pipe sleeve 2 in a "cross" shape, and prevents the generation of a gap between the column 11 and the pipe sleeve 2 by threading the column 11 to prevent the generation of a gap between the column 11 and the pipe sleeve 2, thereby evenly distributing the radial force to the entire boss column 1, which can greatly reduce the stress concentration of the first perforation and the second perforation, improve its destructive load performance, improve the tensile performance, avoid the column 11 from breaking, make the structure more stable, and have a better fit, and can give full play to the mechanical properties of a tensile connection structure for column-type parts for contact networks.

[0046] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A tensile connection structure for column-type parts for contact network, characterized in that: include: A boss column (1), the boss column (1) comprising a connecting portion and a column (11) connected to each other, an external thread being provided on an outer surface of the column (11), the column (11) being provided with a first through hole along a first direction and a second through hole along a second direction, the first direction being perpendicular to the second direction; A pipe sleeve (2), wherein the inner surface of the pipe sleeve (2) is provided with an internal thread matching the external thread, the column (11) is inserted and threadedly connected to the pipe sleeve (2), and the pipe sleeve (2) is provided with two first through holes spaced apart along the first direction, and two second through holes spaced apart along the second direction; A connecting member (3), wherein two connecting members (3) are provided, wherein one of the connecting members (3) passes through one of the first through holes and the first perforation, then passes through another of the first through holes and is fixed, and the other connecting member (3) passes through one of the second through holes and the second perforation, then passes through another of the second through holes and is fixed.

2. The tensile connection structure of column parts for contact network according to claim 1, characterized in that: The first through hole and the second through hole are both arranged along the radial direction of the column (11).

3. The tensile connection structure of column parts for contact network according to claim 1, characterized in that: The two first through holes are arranged at intervals along the radial direction of the pipe sleeve (2), and the two second through holes are arranged at intervals along the radial direction of the pipe sleeve (2).

4. The tensile connection structure of column parts for contact network according to claim 1, characterized in that: The first perforation and the second perforation are spaced apart from each other.

5. The tensile connection structure of column parts for contact network according to claim 1, characterized in that: An axis of the first through hole and an axis of the second through hole are both parallel to a horizontal plane.

6. The tensile connection structure of column parts for contact network according to claim 1, characterized in that: The outer wall of one of the connecting parts (3) is tightly matched with the hole wall of the first perforation and the hole walls of the two first through holes in the circumferential direction, and the outer wall of the other connecting part (3) is tightly matched with the hole wall of the second perforation and the hole walls of the two second through holes in the circumferential direction.

7. The tensile connection structure of column parts for contact network according to claim 1, characterized in that: The first through-hole, the second through-hole, the first through-hole and the second through-hole are all processed by a drilling machine.

8. The tensile connection structure of column parts for contact network according to claim 1, characterized in that: The boss column (1) and the pipe sleeve (2) are both made of metal or alloy.

9. The tensile connection structure of column parts for contact network according to claim 1, characterized in that: The length of the sleeve (2) is greater than the length of the column (11).

10. The tensile connection structure of column parts for contact network according to claim 1, characterized in that: The connecting piece (3) is a rivet.

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