Jackscrew type supporting connector

Abstract

A jackscrew type supporting connector comprises a first half hoop and a second half hoop, double connecting lugs are arranged on the outer arc face of the second half hoop, first hinge lugs are symmetrically arranged at the two ends of the first half hoop, and an internal thread through hole is formed in the center of the first half hoop; second hinge lugs are symmetrically arranged at the two ends of the second half hoop, the first hinge lugs are hinged to the second hinge lugs through pin shafts, and puller bolts are installed on the internal thread through holes. When being installed, the supporting connector can be quickly sleeved on a flat and inclined cantilever pipe or a positioning pipe, and is accurately positioned through a wedge-shaped structure formed by matching the inclined surface with the puller bolt, so that the vertical surface of the supporting connector is ensured to be overlapped with the vertical surfaces of a flat cantilever, an inclined cantilever and a supporting pipe, deflection and slippage can be prevented, and reliable connection is ensured; and the two half hoops are riveted through the pin shaft, so that the number of parts connected through bolts is reduced, and the mounting efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of manufacturing components of catenary for electrified railways, and particularly relates to a top-screw type support connector. Background Art

[0002] At present, in the cantilever support device of the catenary for high-speed electrified railways in China, the support connector is a key component used to connect the support pipe with the horizontal or inclined cantilever pipe or the positioning pipe. The closest prior art to the utility model is the "hinged forged cantilever connector CN206446458U" previously applied by the applicant. This connector has many components, and it is difficult to ensure that the vertical plane of the support connector coincides with the vertical planes of the horizontal or inclined cantilever and the positioning pipe during installation, and it is prone to deflection and slip, resulting in a large amount of on-site installation work and low installation efficiency. In particular, this connector is fixed to the horizontal or inclined cantilever or the positioning pipe by bolt clamping, there is a safety hazard of connector deflection caused by loosening of the bolt connection, and it cannot meet the use requirements of high-speed electrified railways with a speed of 250 km / h or above. Content of the Utility Model

[0003] In order to solve the above problems existing in the prior art, the utility model provides a top-screw type support connector.

[0004] The technical problems to be solved by the utility model are realized through the following technical solutions:

[0005] A top-screw type support connector, comprising a first half-hoop and a second half-hoop. Connecting ears are arranged on the outer arc surface of the second half-hoop. It is characterized in that: first hinge ears are symmetrically arranged at both ends of the first half-hoop, and an internal thread through-hole is arranged in the center; second hinge ears are symmetrically arranged at both ends of the second half-hoop. The first hinge ears and the second hinge ears are hinged by a pin shaft, and a tightening bolt is installed on the internal thread through-hole.

[0006] Further, a pair of V-shaped inclined surfaces are symmetrically arranged on both sides of the inner arc surface of the second half-hoop.

[0007] Further, the first hinge ear is of a single-ear structure, the second hinge ear is of a double-ear structure, and the pin shaft is a flanging rivet.

[0008] Further, the included angle of the V shape is 60 degrees.

[0009] Advantages of the Utility Model

[0010] 1. During installation, the utility model can be quickly sleeved on the horizontal or inclined cantilever pipe or the positioning pipe, and accurately positioned through the wedge-shaped structure formed by the cooperation of the inclined surface and the tightening bolt, ensuring that the vertical plane of the support connector coincides with the vertical planes of the horizontal or inclined cantilever and the support pipe, and can prevent deflection and slip, ensuring reliable connection.

[0011] 2. The two semi-hoops of the present utility model are riveted by a pin shaft, reducing the number of components connected by bolts and improving the installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic structural view of the present utility model;

[0013] Figure 2 is a schematic structural view of the first semi-hoop of the present utility model;

[0014] Figure 3 is a three-dimensional structural schematic view of the second semi-hoop of the present utility model;

[0015] Figure 4 is a side view of the second semi-hoop of the present utility model.

[0016] Reference numerals in the drawings: the first semi-hoop 1, the first hinge ear 1-1, the threaded through hole 1-2, the reinforcing rib 1-3, the second semi-hoop 2, the connecting double ears 2-1, the second hinge ear 2-2, the inclined surface 2-3, the tightening bolt 3, the pin shaft 4, the pin 5. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The following will Figures 1-4 be further described in detail in conjunction with the appended

[0018] drawings and specific embodiments, but the embodiments of the present utility model are not limited thereto.

[0019] A jackscrew type support connector includes a first semi-hoop 1 and a second semi-hoop 2. Connecting double ears 2-1 are arranged on the outer arc surface of the second semi-hoop 2. First hinge ears 1-1 are symmetrically arranged at both ends of the first semi-hoop 1, and an internal threaded through hole 1-2 is provided in the center; second hinge ears 2-2 are symmetrically arranged at both ends of the second semi-hoop 2. The first hinge ear 1-1 and the second hinge ear 2-2 are hinged by a pin shaft 4, and a tightening bolt 3 is installed on the internal threaded through hole 1-2.

[0020] A pair of V-shaped inclined surfaces 2-3 are symmetrically arranged on both sides of the inner arc surface of the second semi-hoop 2. The included angle of the V shape is preferably 60 degrees.

[0021] The first hinge ear 1-1 is of a single-ear structure, the second hinge ear 2-2 is of a double-ear structure, and the pin shaft 4 is a flanged rivet. Reinforcing ribs 1-3 are arranged on both sides of the outer arc surface of the second semi-hoop 1.

[0022] When installing and using, install this set screw type support connector on the horizontal or inclined cantilever tube or positioning tube, and adjust the position to make its vertical plane coincide with the vertical plane of the horizontal or inclined cantilever tube or positioning tube; then tighten the set screw 3 to clamp the horizontal or inclined cantilever tube or positioning tube between the two inclined surfaces 2-3 to prevent the connector from deflecting and slipping. Finally, hinge the connecting double ear 2-1 to the support tube of the catenary through the pin 5. To prevent the set screw 3 from loosening, a lock nut can be sleeved on the set screw 3, and the lock nut is located outside the first half hoop 1.

[0023] The above content is a further detailed description of the present utility model in combination with specific preferred embodiments. It cannot be determined that the specific implementation of the present utility model is only limited to these descriptions. For those of ordinary skill in the technical field to which the present utility model belongs, without departing from the concept of the present utility model, several simple deductions or substitutions can be made, which should all be regarded as belonging to the protection scope of the present utility model.

Claims

1. A set screw type support connector, comprising a first half hoop (1) and a second half hoop (2), wherein a connecting double ear (2-1) is arranged on the outer arc surface of the second half hoop (2), and it is characterized in that: Both ends of the first semi-hoop (1) are symmetrically provided with first hinge ears (1-1), and a through-hole with internal threads (1-2) is provided in the center; both ends of the second semi-hoop (2) are symmetrically provided with second hinge ears (2-2), the first hinge ear (1-1) and the second hinge ear (2-2) are hinged by a pin shaft (4), and a tightening bolt (3) is installed on the through-hole with internal threads (1-2).

2. The top screw type support connector according to claim 1, characterized in that: On both sides of the inner arc surface of the second semi-hoop (2), a pair of V-shaped inclined surfaces (2-3) are symmetrically provided.

3. The top screw type support connector according to claim 2, wherein: The first hinge ear (1-1) is of a single-ear structure, the second hinge ear (2-2) is of a double-ear structure, and the pin shaft (4) is a flanged rivet.

4. The top screw type support connector according to claim 3, characterized in that: The included angle of the V shape is 60 degrees.

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