A rolling ring spring lock device

Abstract

The utility model relates to the technical field of rolling ring connecting piece relates to a rolling ring spring locking device. Handle realizes rotary connection through the sleeve joint hole of pin shaft and mandrel, sleeve, intermediate shaft, mandrel are in proper order and adopt clearance fit between two, and the lateral groove that opens on intermediate shaft is left and right through. The sleeve is annular structure, and the through -hole and the threaded hole that are used for the flat -end pin one -way passing are equipped on the lateral wall, and the threaded hole of the other side of the sleeve is realized fastening after the flat -end pin passes through the lateral groove on the intermediate shaft from the sleeve through -hole side, and the front end threaded rod part of flat -end pin rotates into. By connecting the sleeve and the mandrel, it is ensured that the mandrel has a certain movement stroke in the axial direction relative to the intermediate shaft. The spring is installed between the base of the intermediate shaft and the sleeve in a free state, and is limited in the axial direction by the sleeve and the intermediate shaft. The threaded rod part under the buckle head is screwed into the threaded hole in the upper end of the intermediate shaft to realize the fixed connection of the buckle head and the intermediate shaft. It ensures that the ring body is connected firmly, and the manufacturing cost is low.

Description

Technical Field

[0001] This utility model relates to the technical field of rolling ring connectors, specifically to a rolling ring spring locking device. Background Technology

[0002] Most existing rolling rings use bolts and nuts to fix the upper and lower ring bodies together. Although this connection method is stable and reliable, it is not conducive to quick disassembly and assembly, and is relatively time-consuming and labor-intensive.

[0003] This utility model aims to solve the above-mentioned problems by providing a spring-type locking device, which solves the problem that the existing threaded connection method of the rolling ring is complicated to disassemble and assemble, and is not conducive to the realization of quick replacement function. Utility Model Content

[0004] Utility Model Purpose The purpose of this invention is to provide a spring locking device with a self-pressurizing function, which can prevent the automatic opening due to a small external force, thereby ensuring the firmness of the locking of the upper and lower halves of the rolling ring. Furthermore, this mechanism can be used to achieve quick assembly and disassembly of the rolling ring.

[0005] Technical solution To achieve the above objectives, this utility model provides a rolling spring locking device, including a buckle, an intermediate shaft, a sleeve, a flat-head pin, a spring, a mandrel, a pin, and a handle. The handle is rotatably connected to the mandrel via a socket joint between the pin and the mandrel. The sleeve, intermediate shaft, and mandrel are sequentially fitted together with a clearance fit between each pair. The intermediate shaft has a lateral groove that runs through both sides. The sleeve has a ring structure with a through hole and a threaded hole on its side wall for the flat-head pin to pass through in one direction. After the flat-head pin passes through the lateral groove on the intermediate shaft from the through hole side of the sleeve, the threaded portion of the front end of the flat-head pin is screwed into the threaded hole on the other side of the sleeve for fastening. By connecting the sleeve and the mandrel, a certain amount of axial movement relative to the intermediate shaft can be ensured. The spring is installed freely between the base of the intermediate shaft and the sleeve, and is restricted axially by the sleeve and the intermediate shaft. The threaded portion below the buckle is screwed into the threaded hole at the upper end of the intermediate shaft to achieve a fixed connection between the buckle and the intermediate shaft.

[0006] Furthermore, it also includes a pivot hole, which is located on the handle. The front end of the handle is mounted in the lower half-ring groove via a lower ring shaft, allowing it to rotate freely around the lower ring shaft. The spindle is connected to the movable shaft in the middle section of the handle via a pin and a nut.

[0007] Furthermore, the tension of the locking device is determined by the height of the lateral groove.

[0008] Furthermore, the overall height of the locking device can be adjusted by adjusting the length of the threaded connection between the buckle and the intermediate shaft.

[0009] Furthermore, the buckle is a double-hook type.

[0010] Furthermore, the end of the pin has an internal hexagonal structure.

[0011] Technical effect Compared with the prior art, the spring locking device provided by this utility model can ensure a firm connection of the ring body when used for connecting the upper and lower halves of the rolling ring; and due to its simple structure, the locking mechanism itself is easy to install, easy to operate, and has low manufacturing cost. Moreover, it can still ensure the stability of the ring body connection when the product is clamped, with high reliability and great durability. Attached Figure Description

[0012] Figure 1 Isometric side view of the spring locking device; Figure 2 Exploded view of spring lock Wherein: 1- Buckle 2- Intermediate shaft 3- Sleeve 4- Flat pin 5- Spring 6- Mandrel 7- Pin 8- Handle; Figure 3 Spring locking device installation diagram Wherein: 10-Upper half ring, 11-Lower half ring, 12-Upper ring shaft, 13-Lower ring shaft, 14-Spring locking. Detailed Implementation

[0013] The spring locking device consists of a nut 9, a handle 8, a pin 7, a spindle 6, a spring 5, a flat-head pin 4, a sleeve 3, an intermediate shaft 2, and a buckle 1. The buckle 1 secures the upper half ring 10 via the upper ring shaft 12. As the handle 8 rotates around the lower half shaft 13, the upper and lower half rings are gradually tightened. When the handle and the buckle are more than 180° aligned, the rolling ring is locked.

[0014] The method of using the spring locking device of this utility model to lock the rolling ring is as follows: Figure 3 As shown, first fasten buckle 1 onto the upper ring shaft 12 inside the upper half ring groove, and then pull handle 8 (installed on the lower half ring shaft) downwards until it is flush with the upper half ring shaft, using the rebound force of the spring when it is compressed to lock the upper and lower half rings. The specific installation steps are as follows: 1) First, connect the lower part of the spindle 6 to the handle 8 through the pin 7 and nut 9, and ensure that both can rotate freely around the pin 7; 2) Then, put the intermediate shaft 2 on the spindle 6, put the spring 5 on the intermediate shaft 2 from above, and then place the sleeve 3 on the upper end of the spring 5. Check whether the side hole of the sleeve 3 coincides with the side groove on the intermediate shaft 2. 3) Then fully insert the flat-head pin 4 into the sleeve 3, ensuring that the flat-head pin 4 passes through the sleeve-intermediate shaft 2 (left groove)-spindle 6-intermediate shaft 2 (right groove)-sleeve 3 in sequence, thus completing the axial fixation of the sleeve 3 and the spindle 6; 4) Then screw the buckle 1 into the threaded hole above the intermediate shaft 2, and ensure that the groove at the upper end of the buckle 1 is parallel to the axial direction of the transverse axis of the lower end spindle 6; 5) After the spring locking device 14 is installed, screw the two lower ring shafts 13 into the threaded holes at the front end of the handle and install the spring locking device on the lower half ring 11. After the aircraft section is clamped in the rolling ring, fasten the buckle 1 onto the upper ring shaft 11 of the upper half ring 10, and then manually turn the handle 8 until the handle 8 and the buckle 1 are aligned at 180°, thus completing the connection and locking of the upper and lower half rings.

[0015] Example A rolling spring locking device includes a buckle 1, an intermediate shaft 2, a sleeve 3, a flat-head pin 4, a spring 5, a mandrel 6, a pin 7, and a handle 8. The handle 8 is rotatably connected to the mandrel 6 via a socket hole in the pin 7. The sleeve 3, intermediate shaft 2, and mandrel 6 are sequentially sleeved together, with clearance fit between each pair. The intermediate shaft 2 has a lateral groove that runs through both sides. The sleeve 3 has a ring structure with a through hole and a threaded hole on its side wall for the flat-head pin 4 to pass through in one direction. After the flat-head pin 4 passes through the lateral groove on the intermediate shaft 2 from the through hole side of the sleeve 3, the threaded part of the front end of the flat-head pin 4 is screwed into the threaded hole on the other side of the sleeve 3 for fastening. By connecting the sleeve 3 to the mandrel 6, it is ensured that the mandrel 6 (with the sleeve axially fixed to it) has a certain stroke relative to the intermediate shaft 2 in the axial direction (the stroke range is the length of the lateral groove of the intermediate shaft). Spring 5 is installed freely between the base of intermediate shaft 2 and sleeve 3, and is restricted axially by sleeve 3 and intermediate shaft 2. The threaded part below buckle 1 is screwed into the threaded hole at the upper end of intermediate shaft 2 to achieve the fixed connection between buckle 1 and intermediate shaft 2.

[0016] Furthermore, it also includes a pivot hole, which is provided on the handle 8. The front end of the handle 8 is installed in the lower half-ring groove via a lower ring shaft, allowing it to rotate freely around the lower ring shaft. The spindle 6 is connected to the movable shaft in the middle section of the handle 8 via a pin 7 and a nut 9.

[0017] Furthermore, the tension of the locking device is determined by the height of the lateral groove.

[0018] Furthermore, the overall height of the locking device can be adjusted by adjusting the length of the threaded connection between the buckle 1 and the intermediate shaft 2.

[0019] Furthermore, the buckle 1 is a double hook type.

[0020] Furthermore, the end of the pin 7 has an internal hexagonal structure.

Claims

1. A rolling spring locking device, characterized in that, The device includes a buckle, intermediate shaft, sleeve, flat-head pin, spring, mandrel, pin, and handle. The handle is rotatably connected to the mandrel via a socket joint between the pin and the mandrel. The sleeve, intermediate shaft, and mandrel are sequentially fitted together with clearance between each pair. The intermediate shaft has a lateral groove running through it. The sleeve is an annular structure with a through hole and a threaded hole on its sidewall for the flat-head pin to pass through in one direction. After the flat-head pin passes through the lateral groove on the intermediate shaft from the through hole side of the sleeve, the threaded part of the front end of the flat-head pin is screwed into the threaded hole on the other side of the sleeve for fastening. Connecting the sleeve and the mandrel ensures that the mandrel has a certain stroke relative to the intermediate shaft in the axial direction. The spring is installed freely between the base of the intermediate shaft and the sleeve, and is restricted in the axial direction by the sleeve and the intermediate shaft. The threaded part below the buckle is screwed into the threaded hole at the upper end of the intermediate shaft to fix the buckle to the intermediate shaft.

2. The apparatus as claimed in claim 1, characterized in that, It also includes a pivot hole, which is set on the handle. The front end of the handle is installed in the lower half-ring groove through the lower ring shaft and can rotate freely around the lower ring shaft; the spindle is connected to the movable shaft in the middle section of the handle through a pin and a nut.

3. The apparatus as described in claim 1, characterized in that, The tension of the locking device is determined by the height of the lateral groove.

4. The apparatus as claimed in claim 1, characterized in that, The overall height of the locking device can be adjusted by adjusting the length of the threaded connection between the buckle and the intermediate shaft.

5. The apparatus as claimed in claim 1, characterized in that, The buckle is a double hook type.

6. The apparatus as claimed in claim 1, characterized in that, The end of the pin has an internal hexagonal structure.

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