Anti-drop T-shaped connector for cantilever pipe

Abstract

An anti-falling T-shaped connector for a cantilever pipe comprises a T-shaped body and two T-shaped bolts, and the T-shaped body is composed of a straight section and a vertical connecting lug located below the straight section; a T-shaped boss is arranged on the top face of the straight section, vertical connecting holes are formed in the two ends of the straight section, horizontal connecting holes are formed in the vertical connecting lugs, the two T-shaped bolts penetrate through the vertical connecting holes from top to bottom and then are sleeved with nuts, and connecting shafts are installed in the horizontal connecting holes in a penetrating mode. The T-shaped boss is arranged on the top face of the T-shaped body, the T-shaped boss stretches across the inner end of the notch of the cantilever pipe, the situation that the whole connector falls off due to improper arrangement of a T-shaped bolt during installation is prevented, safety of a construction site is guaranteed, and installation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrified railway contact network equipment, in particular to a wrist arm tube anti-detachment T-type connector. Background Art

[0002] The prior art closest to the present invention is a C-section wrist arm tube T-type connector (CN 219154289U), the top surface of which is a flat surface. The top surface of the T-type body is a flat surface, and the T-type body can only be connected to the wrist arm tube by clamping the bolt head of the T-type bolt in the notch of the C-section wrist arm tube. Before the T-type bolt is tightened, the T-type body and the notch of the wrist arm tube cannot be relatively positioned, and it is difficult to quickly position and install during construction. If the bolt head of the T-type bolt rotates to the axis of the wrist arm tube, the T-type bolt will fall off from the notch and the entire connector will fall off, which will bring hidden dangers to the construction site. Summary of the invention

[0003] The utility model provides a wrist-arm tube anti-detachment T-shaped connector to overcome the shortcomings of the prior art.

[0004] The technical solution adopted by the utility model is: a wrist-arm tube anti-detachment T-type connector, comprising a T-type body and two T-type bolts, wherein the T-type body is composed of a straight section and a vertical connecting ear located below the straight section; a T-type boss is provided on the top surface of the straight section, vertical connecting holes are provided at both ends of the straight section, horizontal connecting holes are provided on the vertical connecting ears, the two T-type bolts respectively pass through the vertical connecting holes from top to bottom and are then covered with nuts, and a connecting shaft is passed through the horizontal connecting hole.

[0005] The top surface of the straight section has positioning bosses symmetrically at both ends, and the positioning bosses are located outside the vertical connecting holes; the T-shaped bosses are located between the vertical connecting holes.

[0006] The top surface of the straight section has a positioning boss and a T-shaped boss symmetrically at both ends, and the T-shaped boss is located above the positioning boss and forms an integral structure with the positioning boss.

[0007] The vertical connecting ears are arranged along the length direction of the T-shaped body.

[0008] The inner end surface of the bolt head of the T-bolt is a symmetrical dovetail surface.

[0009] The nut is a locking nut, and the connecting shaft is a bolt pin.

[0010] The vertical connecting ear is a vertical single ear or vertical double ears.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. The utility model arranges a T-shaped boss on the top surface of the T-shaped body, and the T-shaped boss spans the inner end of the wrist arm tube slot to prevent the entire connector from falling off due to improper T-bolt arrangement during installation, thereby ensuring the safety of the construction site and improving the installation efficiency.

[0013] 2. The utility model provides a positioning boss on the top surface of the T-shaped body, and the positioning boss is clamped in the notch of the wrist arm tube, which not only can achieve rapid positioning and installation, but also reduces the shear force of the wrist arm tube notch on the T-shaped bolt during line operation, thereby extending the service life.

[0014] 3. The utility model can make the neutral plane of the connector naturally on the vertical plane by clamping the positioning boss in the notch of the wrist arm tube without further adjustment, which simplifies the installation process, improves the construction efficiency, and further reduces the maintenance cost.

[0015] 4. The inner end face of the bolt head of the T-bolt of the utility model is a symmetrical dovetail face, and the dovetail face is adapted to the inner end face of the notch of the wrist arm tube. After tightening, the T-bolt has a good anti-slip effect, thereby improving the connection reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0017] Figure 2 This is a schematic diagram of the structure of Embodiment 2 of the present utility model;

[0018] Figure 3 , Figure 4 This is a schematic diagram of the T-shaped body structure of Example 1 of the utility model;

[0019] Figure 5 This is a schematic diagram of the connection state between the utility model and the wrist arm tube;

[0020] Figure 6 It is a schematic diagram of the use state of the utility model. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1-6 The utility model is described in detail with specific implementation modes.

[0022] Example 1, reference Figure 1 , 34. A wrist-arm tube anti-slip T-shaped connector, comprising a T-shaped body 1 and two T-shaped bolts 2, wherein the T-shaped body 1 is composed of a straight section 1-1 and a vertical connection ear 1-2 located below the straight section 1-1; a T-shaped boss 1-3 is provided on the top surface of the straight section 1-1, vertical connection holes 1-4 are provided at both ends of the straight section 1-1, and a horizontal connection hole 1-5 is provided on the vertical connection ear 1-2; the two T-shaped bolts 2 are respectively passed through the vertical connection holes 1-4 from top to bottom and then are fitted with nuts 3, and a connecting shaft 4 is passed through the horizontal connection hole 1-5.

[0023] The top surface of the straight section 1-1 has positioning bosses 1-6 symmetrically at both ends, and the positioning bosses 1-6 are located outside the vertical connecting holes 1-4; the T-shaped boss 1-3 is located between the vertical connecting holes 1-4.

[0024] The top surface of the flat surface 1-1 is symmetrically provided with a positioning boss 1-6 and a T-shaped boss 1-3 at both ends. The T-shaped boss 1-3 is located above the positioning boss 1-6 and forms an integral structure with the positioning boss 1-6.

[0025] The vertical connecting ear 1 - 2 is a vertical single ear and is arranged along the length direction of the T-shaped body 1 .

[0026] The inner end surface of the bolt head of the T-bolt 2 is a symmetrical dovetail surface 2-1.

[0027] The nut 3 is a locking nut, and the connecting shaft 4 is a bolt pin. The locking nut is preferably a torque-free locking nut.

[0028] Example 2, reference Figure 2 The basic structure is the same as that of the first embodiment, except that the vertical connecting ears 1 - 2 are vertical double ears and are arranged along the length direction of the T-shaped body 1 .

[0029] Installation method: Reference Figure 5-6 . The utility model is suitable for use with a wrist arm tube 5 having a dovetail notch in the axial direction, and the dovetail surface 2-1 on the bolt head of the T-bolt 2 is adapted to the dovetail platform 5-1 provided at the inner end of the dovetail notch. During installation, the utility model is slid from the dovetail notch into the wrist arm tube connection, so that the positioning boss 1-6 is clamped in the dovetail notch, the T-boss 1-3 and the bolt head of the T-bolt 2 span the inner end of the dovetail notch, and the T-bolt 2 is tightened. In order to ensure a reliable connection and prevent loosening, the nut 3 is composed of two anti-loosening nuts that are tightened together, and a gasket 6 is set between the anti-loosening nut and the T-body 1.

[0030] The vertical connecting ears 1-2 are vertical single ears or vertical double ears to meet different usage requirements.

[0031] The T-shaped body 1 is an integral structure, preferably made of aluminum alloy, and is manufactured by die forging or profile extrusion.

[0032] For example, when the wrist arm tube 5 is an oblique wrist arm tube, it is preferably an H-shaped cross-section, which has two dovetail notches 5-1 axially symmetrically. Figure 5 The middle connector 9) is installed in the dovetail notch 5-1 below the oblique wrist arm tube, and the inner end of the positioning tube 7 is hingedly connected to the vertical single ear through the connecting double ears through the bolt pin 4; Embodiment 2 of the utility model ( Figure 5 The middle connector 10) is installed in the dovetail groove 5-1 above the oblique wrist arm tube, and the single ear at the lower end of the wrist arm support 8 is hingedly connected to the vertical double ears through the bolt pin 4; the connection between the oblique wrist arm and the wrist arm support, and the oblique wrist arm and the positioning tube is realized, and at the same time, the neutral planes of the two connectors 9 and 10 are naturally on the plumb plane.

[0033] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, all equivalent changes made to the contents described in the claims of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A wrist-arm tube anti-drop T-shaped connector, comprising a T-shaped body (1) and two T-shaped bolts (2), characterized in that: The T-shaped body (1) is composed of a straight section (1-1) and a vertical connecting ear (1-2) located below the straight section (1-1); a T-shaped boss (1-3) is provided on the top surface of the straight section (1-1); vertical connecting holes (1-4) are provided at both ends of the straight section (1-1); a horizontal connecting hole (1-5) is provided on the vertical connecting ear (1-2); two T-shaped bolts (2) are respectively passed through the vertical connecting holes (1-4) from top to bottom and then fitted with nuts (3); and a connecting shaft (4) is passed through the horizontal connecting hole (1-5).

2. The wrist-arm tube anti-detachment T-type connector according to claim 1, characterized in that: The top surface of the straight section (1-1) has symmetrical positioning bosses (1-6) at both ends, and the positioning bosses (1-6) are located outside the vertical connection holes (1-4); the T-shaped bosses (1-3) are located between the vertical connection holes (1-4).

3. The wrist-arm tube anti-detachment T-type connector according to claim 1, characterized in that: The top surface of the straight section (1-1) has symmetrically disposed positioning bosses (1-6) and T-shaped bosses (1-3) at both ends, and the T-shaped bosses (1-3) are located above the positioning bosses (1-6) and form an integral structure with the positioning bosses (1-6).

4. A wrist-arm tube anti-detachment T-type connector according to claim 2 or 3, characterized in that: The vertical connecting ears (1-2) are arranged along the length direction of the T-shaped body (1).

5. The wrist-arm tube anti-detachment T-type connector according to claim 4, characterized in that: The inner end surface of the bolt head of the T-shaped bolt (2) is a symmetrical dovetail surface (2-1).

6. The wrist-arm tube anti-detachment T-type connector according to claim 5, characterized in that: The nut (3) is a locking nut, and the connecting shaft (4) is a bolt pin.

7. The wrist-arm tube anti-detachment T-type connector according to claim 6, characterized in that: The vertical connecting ears (1-2) are vertical single ears or vertical double ears.

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