Safety shaft for quick connector and quick connector

Abstract

The utility model provides a quick connector and a safety shaft used for the quick connector, relates to the connector field, the quick connector comprises a connecting column, a connecting frame, a connecting tail frame and the safety shaft, one end of a shaft rod respectively penetrates through the connecting column and the opposite end of the connecting frame, and the top of the connecting frame is also provided with a fixing piece used for fixing the shaft rod. The connecting tail frame is installed at the end, away from the connecting column, of the connecting frame, the two arc-shaped clamping plates are not limited by screwing the connecting bolt, the arc-shaped clamping plates are made to be away from the annular groove by rotating the arc-shaped clamping plates, and at the moment, the shaft rod can be rapidly disengaged. During installation, one end of the shaft rod penetrates through the connecting column and the connecting frame, and the annular groove is located between the two arc-shaped clamping plates; and the inner wall of the annular groove is clamped and fixed by the two arc-shaped clamping plates by tightening the connecting bolts, so that the shaft rod is conveniently and quickly fixed.

Description

Technical Field

[0001] The utility model relates to the field of connectors, in particular to a safety shaft for a quick connector and a quick connector. Background Art

[0002] Quick connectors are used to connect two objects and are currently widely used in many fields such as industry, construction, agricultural irrigation, and hydraulic systems. In quick connectors, safety shafts can provide precise position fixation and movement guidance for tractors, ensuring correct assembly and avoiding accidents caused by misalignment.

[0003] The existing publication number CN117136143A provides a hinged safety hitch device, which is a more reliable and flexible alternative to conventional hitch devices and ball hitch systems for long-term use from light towing to heavy towing, thereby improving safety, lifespan, strength, usability, and ease of manufacture. Instead of the single ball typically used in conventional hitch devices and ball hitch systems, it can move in all directions, the bearings are separated widely, and it will not bind or slip. In addition, the hinged safety hitch device is easy to construct and uses available existing components as wear-resistant items, such as existing trailer tongues and ball coupler designs. However, the above device is rather troublesome to disassemble and assemble.

[0004] Therefore, it is necessary to provide a new safety shaft for a quick connector and a quick connector to solve the above technical problems. Summary of the Utility Model

[0005] To solve the above technical problems, the utility model provides a safety shaft for a quick connector and a quick connector.

[0006] A safety shaft for a quick connector provided by one aspect of the utility model includes a shaft rod. An annular groove is provided at a position near the top of the outer side of the shaft rod, and a limiting disc is fixedly connected to the bottom of the shaft rod.

[0007] A quick connector provided by another aspect of the utility model includes a connecting column, a connecting frame, a connecting tail frame, and the above safety shaft. One end of the shaft rod respectively penetrates through the connecting column and the opposite end of the connecting frame, and a fixing member for fixing the shaft rod is further provided at the top of the connecting frame. The connecting tail frame is installed at one end of the connecting frame away from the connecting column;

[0008] The fixing member includes a fixing seat and a support frame. The fixing seat is fixedly installed at the top of the connecting frame, the support frame is fixedly installed on one side of the fixing seat, arc-shaped clamping plates are hinged at both ends of the support frame, both arc-shaped clamping plates are located in the annular groove, and one ends of the two arc-shaped clamping plates are fixedly connected by a connecting bolt.

[0009] Furthermore, a plurality of positioning holes are equidistantly formed in the outer side wall of the connecting frame, and the connecting tail frame is fixedly connected to the positioning holes through fixing bolts.

[0010] Furthermore, through grooves are formed on both sides of the connecting tail frame, elastic shock absorbers are installed in the through grooves, connecting rings are fixed at the ends of the elastic shock absorbers, and both ends of the fixing bolts respectively pass through the two connecting rings.

[0011] Furthermore, the fixing bolt includes a positioning rod and two opposite adjusting nuts. One end of the positioning rod passes through the positioning hole. Two-stage threads are formed at one end of the positioning rod, and the two-stage threads are respectively a left thread and a right thread, and the two adjusting nuts are respectively threadedly connected to the end of the positioning rod with the two-stage threads.

[0012] Furthermore, traction connecting heads are provided at one ends of the connecting column and the connecting tail frame.

[0013] Compared with the related art, the safety shaft and the quick connector for the quick connector provided by the present invention have the following beneficial effects:

[0014] By screwing the connecting bolt, the two arc-shaped clamping plates are not restricted. By rotating the arc-shaped clamping plates to move them away from the annular groove, the shaft rod can be quickly disengaged at this time. During installation, one end of the shaft rod passes through the connecting column and the connecting frame respectively, so that the annular groove is located between the two arc-shaped clamping plates. By tightening the connecting bolt, the two arc-shaped clamping plates clamp and fix the inner wall of the annular groove, which is convenient for quickly fixing the shaft rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the safety shaft for the quick connector provided by the present invention;

[0016] Figure 2 is a schematic overall structural diagram of the quick connector provided by the present invention;

[0017] Figure 3 is a schematic exploded structural diagram of the quick connector provided by the present invention Figure 1 ;

[0018] Figure 4 is a schematic exploded structural diagram of the quick connector provided by the present invention Figure 2 。

[0019] Reference numerals in the figures: 1, shaft rod; 2, annular groove; 3, limiting disk; 4, connecting column; 5, connecting frame; 6, connecting tail frame; 7, fixed seat; 8, support frame; 9, arc-shaped clamping plate; 10, positioning hole; 11, through groove; 12, elastic shock absorber; 13, connecting ring; 14, positioning rod; 15, adjusting nut; 16, traction connecting head; 17, connecting bolt. Detailed implementation manners

[0020] The present utility model will be further described below in conjunction with the accompanying drawings and implementation manners.

[0021] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , wherein, Figure 1 is a schematic structural diagram of the safety shaft for a quick connector provided by the present utility model; Figure 2 is a schematic overall structural diagram of the quick connector provided by the present utility model; Figure 3 is a schematic exploded structural diagram of the quick connector provided by the present utility model Figure 1 ; Figure 4 is a schematic exploded structural diagram of the quick connector provided by the present utility model Figure 2 .

[0022] In the specific implementation process, as Figures 1 - 4 shown, on the one hand, a safety shaft for a quick connector provided by the present utility model includes a shaft rod 1. An annular groove 2 is opened at a position near the top of the outer side of the shaft rod 1, and a limiting disk 3 is fixedly connected to the bottom of the shaft rod 1.

[0023] On the other hand, a quick connector provided by the present utility model includes a connecting column 4, a connecting frame 5, a connecting tail frame 6 and the above-mentioned safety shaft. One end of the shaft rod 1 respectively penetrates through one ends of the connecting column 4 and the connecting frame 5 that face each other, and a fixing member for fixing the shaft rod 1 is further provided at the top of the connecting frame 5. The connecting tail frame 6 is installed at one end of the connecting frame 5 away from the connecting column 4. Traction connecting heads 16 are provided at one ends of the connecting column 4 and the connecting tail frame 6;

[0024] The fixing member includes a fixing base 7 and a support frame 8. The fixing base 7 is fixedly installed on the top of the connecting frame 5, and the support frame 8 is fixedly installed on one side of the fixing base 7. Arc-shaped clamping plates 9 are hinged at both ends of the support frame 8. Both arc-shaped clamping plates 9 are located in the annular groove 2, and one ends of the two arc-shaped clamping plates 9 are fixedly connected by a connecting bolt. By turning the connecting bolt, the two arc-shaped clamping plates 9 are unrestricted. By rotating the arc-shaped clamping plates 9 to move them away from the annular groove 2, the shaft rod 1 can be quickly detached at this time. During installation, one end of the shaft rod 1 passes through the connecting column 4 and the connecting frame 5 respectively, so that the annular groove 2 is located between the two arc-shaped clamping plates 9. By tightening the connecting bolt, the two arc-shaped clamping plates 9 clamp and fix the inner wall of the annular groove 2, which is convenient for quickly fixing the shaft rod 1.

[0025] In a specific embodiment, a plurality of positioning holes 10 are equidistantly arranged on the outer side wall of the connecting frame 5. The connecting tail frame 6 and the positioning holes 10 are fixedly connected by fixing bolts. The length between the connecting tail frame 6 and the connecting frame 5 is adjusted by adjusting the positions of the fixing bolts in different positioning holes 10.

[0026] Through grooves 11 are formed on both sides of the connecting tail frame 6. Elastic shock absorbers 12 are installed in the through grooves 11. Connecting rings 13 are fixed at the ends of the elastic shock absorbers 12. Both ends of the fixing bolt pass through the two connecting rings 13 respectively. The elastic shock absorbers 12 can, to a certain extent, buffer the impact force during traction and parking.

[0027] It should be noted that the fixing bolt includes a positioning rod 14 and two opposite adjusting nuts 15. One end of the positioning rod 14 passes through the positioning hole 10. Two-stage threads are formed at one end of the positioning rod 14, and the two-stage threads are respectively a left thread and a right thread. The two adjusting nuts 15 are respectively threadedly connected to the end of the positioning rod 14 with two-stage threads. The two-stage threads can prevent the adjusting nuts 15 from loosening easily.

[0028] The working principle provided by the present utility model is as follows: By turning the connecting bolt, the two arc-shaped clamping plates 9 are unrestricted. By rotating the arc-shaped clamping plates 9 to move them away from the annular groove 2, the shaft rod 1 can be quickly detached at this time. During installation, one end of the shaft rod 1 passes through the connecting column 4 and the connecting frame 5 respectively, so that the annular groove 2 is located between the two arc-shaped clamping plates 9. By tightening the connecting bolt, the two arc-shaped clamping plates 9 clamp and fix the inner wall of the annular groove 2, which is convenient for quickly fixing the shaft rod 1. The length between the connecting tail frame 6 and the connecting frame 5 is adjusted by adjusting the positions of the fixing bolts in different positioning holes 10. Two-stage threads are formed at one end of the positioning rod 14, and the two-stage threads are respectively a left thread and a right thread. The two adjusting nuts 15 are respectively threadedly connected to the end of the positioning rod 14 with two-stage threads. The two-stage threads can prevent the adjusting nuts 15 from loosening easily. The elastic shock absorbers 12 can, to a certain extent, buffer the impact force during traction and parking.

[0029] The circuits and controls involved in the present utility model are all prior arts and will not be elaborated herein.

[0030] The above are only embodiments of the present utility model, and do not limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present utility model.

Claims

1. A safety shaft for a quick connector, characterized in that, It includes a shaft rod (1). An annular groove (2) is provided near the top of the outer side of the shaft rod (1), and a limit disc (3) is fixedly connected to the bottom of the shaft rod (1).

2. A quick connector, characterized in that, It includes a connecting column (4), a connecting frame (5), a connecting tail frame (6) and the safety shaft as described in claim 1. One end of the shaft rod (1) penetrates through one ends of the connecting column (4) and the connecting frame (5) opposite to each other. A fixing member for fixing the shaft rod (1) is further provided on the top of the connecting frame (5). The connecting tail frame (6) is installed at one end of the connecting frame (5) away from the connecting column (4). The fixing member includes a fixing seat (7) and a support frame (8). The fixing seat (7) is fixedly installed on the top of the connecting frame (5). The support frame (8) is fixedly installed on one side of the fixing seat (7). Arc-shaped clamping plates (9) are hinged at both ends of the support frame (8). Both of the two arc-shaped clamping plates (9) are located in the annular groove (2), and one ends of the two arc-shaped clamping plates (9) are fixedly connected by a connecting bolt.

3. The quick connector according to claim 2, characterized in that, A plurality of positioning holes (10) are equidistantly arranged on the outer side wall of the connecting frame (5). The connecting tail frame (6) and the positioning holes (10) are fixedly connected by fixing bolts.

4. The quick connector according to claim 3, characterized in that, Through grooves (11) are provided on both sides of the connecting tail frame (6). Elastic shock absorbers (12) are installed in the through grooves (11). Connecting rings (13) are fixed at the ends of the elastic shock absorbers (12). Both ends of the fixing bolt pass through the two connecting rings (13) respectively.

5. The quick connector according to claim 3, characterized in that, The fixing bolt includes a positioning rod (14) and two opposite adjusting nuts (15). One end of the positioning rod (14) passes through the positioning hole (10). Two-stage threads are provided at one end of the positioning rod (14), and the two-stage threads are left-handed threads and right-handed threads respectively. The two adjusting nuts (15) are respectively threadedly connected to the end of the positioning rod (14) with two-stage threads.

6. The quick connector according to claim 4, characterized in that, Traction connectors (16) are provided at one ends of the connecting column (4) and the connecting tail frame (6).

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