CN219673072U - Manual locking device of threaded connecting rod - Google Patents

Abstract

The utility model discloses a manual anti-loosening device for a threaded connecting rod, which relates to the technical field of threaded connecting rods and comprises a supporting bottom rod, an internal spline shaft sleeve, an axial limiting ring, a supporting ejector rod, a ratchet disc and a rubber pad, wherein the supporting ejector rod is connected with the supporting bottom rod through threads; the anti-loosening structure is stable and reliable in design, convenient to operate and time-saving to operate.

Description

Manual locking device of threaded connecting rod

Technical Field

The utility model relates to the technical field of threaded connecting rods, in particular to a manual anti-loosening device for a threaded connecting rod.

Background

The threaded connecting rod is widely applied to various industries because of the rapid unfolding and folding functions.

Through searching, the patent with the Chinese patent grant number of CN213808393U discloses a double-flat-head invisible threaded connecting rod, which comprises a screw rod and a nut rod; the screw rod is a cylindrical rod with a threaded rod arranged at the front end, and the diameter of the threaded rod is smaller than that of the cylindrical rod; the nut rod is a cylindrical rod, and one end of the nut rod is provided with an axial internal threaded hole; the length of the threaded rod is smaller than the depth of the internal threaded hole, the internal threaded hole is matched with the threaded rod, and the threaded rod is hidden in the internal threaded hole; the diameters of the threaded ends of the screw rod and the nut rod are smaller than the diameters of the threaded ends of the other end; the screw rod and the nut rod are respectively provided with different lengths of 0.5cm-20cm, the lengths of the screw rod and the nut rod are sequentially increased by 0.5cm, and different connecting rods are formed through the cooperation of different screw rods and nut rods. Although this connecting rod can be according to the length of selecing of service conditions, convenient to use, the installation is simple, can hide the junction, but the device dismouting is comparatively troublesome, need just can carry out the dismouting with the help of external tool, and the reliability is lower during the use, and can not prevent to shake when using and lead to the rotation not hard up.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a manual anti-loosening device for a threaded connecting rod, which solves the problems in the background art.

(II) technical scheme

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a manual locking device of screw thread connecting rod, includes support sill bar, internal spline axle sleeve, axial spacing ring, supports ejector pin, ratchet dish and rubber pad, support the ejector pin and support the sill bar and connect through the screw thread, and support the inside internal spline axle sleeve that is equipped with in sill bar top, internal spline axle sleeve top is equipped with axial spacing ring, support ejector pin and support the inside threaded connection of sill bar, and support ejector pin bottom surface and be equipped with tooth form structure to support ejector pin bottom and ratchet dish top block and be connected, ratchet dish bottom is equipped with the rubber pad, and the rubber pad bottom bonds with the inside of supporting the sill bar.

Preferably, the support sill bar is cylindrical structure, and supports the sill bar lower extreme and be solid supporting part, it is hollow interior round hole to support the sill bar upper end, and the round hole bottom design has central screw hole to can cooperate with supporting ejector pin screw thread, open the hollow round hole lateral wall has the regular notch of lateral wall, and hollow round hole lateral wall upper end design has the lateral wall internal thread, can assemble with axial spacing ring screw thread.

Preferably, the inner spline shaft sleeve is internally provided with a circular inner spline which can be matched with a spline shaft of the supporting ejector rod, the outer diameter of the circular ring of the inner spline is slightly smaller than the inner diameter of a circular hole at the upper end of the supporting bottom rod, the outer end of the circular ring is provided with a manual supporting rod, and the tail end of the manual supporting rod is connected with a square clamping groove of the supporting bottom rod.

Preferably, the axial limiting ring is of a circular ring structure with the maximum outer diameter the same as the outer diameter of the supporting ejector rod, and the lower part of the axial limiting ring is of an external thread structure matched with the internal thread at the upper end of the side wall of the hollow circular hole of the supporting bottom rod.

Preferably, the support ejector rod outer structure is a cylindrical support rod, an external spline shaft is arranged at the end part of the cylindrical support rod, the outermost end of the spline shaft is a threaded connecting rod, and the cylindrical support rod is welded with the support platform.

Preferably, the toothed structure at one end of the supporting ejector rod faces opposite to the toothed structure on the surface of the ratchet disc.

(III) beneficial effects

The utility model provides a manual anti-loosening device for a threaded connecting rod. The beneficial effects are as follows:

according to the manual anti-loosening device for the threaded connecting rod, through mutual combination of all the components, quick assembly and disassembly of the connecting rod can be manually realized without tools; the anti-loosening structure is stable and reliable in design, convenient to operate and time-saving to operate.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of the present utility model;

FIG. 3 is a schematic view of a manual support bar according to the present utility model;

FIG. 4 is a schematic view of the joint between the ratchet disc and the rubber pad;

fig. 5 is a schematic view of the structure of the cylindrical support rod of the present utility model.

In the figure, 1, a supporting bottom rod; 2. an internal spline sleeve; 3. an axial limiting ring; 4. supporting the ejector rod; 201. side wall regular notches; 202. a sidewall internal thread; 203. a central threaded bore; 301. an internal spline; 302. a manual support bar; 501. a threaded connecting rod; 502. an external spline shaft; 503. a cylindrical support rod; 504. a support platform; 6. a ratchet disc; 7. and a rubber pad.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the embodiment of the present utility model provides a technical solution: the utility model provides a manual locking device of screw thread connecting rod, includes supports sill bar 1, internal spline axle sleeve 2, axial spacing ring 3, supports ejector pin 4, ratchet 6 and rubber pad 7, support ejector pin 4 and support sill bar 1 are connected through the screw thread, and support sill bar 1 top inside is equipped with internal spline axle sleeve 2, internal spline axle sleeve 2 top is equipped with axial spacing ring 3, support ejector pin 4 and support sill bar 1 inside threaded connection, and support ejector pin 4 bottom surface is equipped with tooth form structure to support ejector pin 4 bottom and ratchet 6 top block are connected, ratchet 6 bottom is equipped with rubber pad 7, and rubber pad 7 bottom and support sill bar 1 inside bond, can exert pretightning force to ratchet 6 through rubber pad 7, thereby make ratchet 6 can carry out the block to support ejector pin 4 bottom, thereby be favorable to preventing that the device can spin when receiving vibrations and lead to not hard up.

The support sill bar 1 is cylindrical structure, and supports sill bar 1 lower extreme and be solid supporting part, support sill bar 1 upper end is hollow interior round hole, and the round hole bottom design has central screw hole 203 to can cooperate with supporting ejector pin 4 screw thread, open the hollow round hole lateral wall has lateral wall rule notch 201, and hollow round hole lateral wall upper end design has lateral wall internal thread 202, can assemble with axial spacing ring 3 screw thread, realize the spacing of the internal spline axle sleeve 2 in the support sill bar 1 makes it not deviate from support sill bar 1 after dismantling.

The inside of the internal spline shaft sleeve 2 is a circular internal spline 301 which can be matched with a spline shaft of the supporting ejector rod 4, the circular outer diameter of the internal spline 301 is slightly smaller than the inner diameter of a circular hole at the upper end of the supporting bottom rod 1, a manual supporting rod 302 is arranged at the outer end of the circular ring, the tail end of the manual supporting rod 302 is connected with a square clamping groove of the supporting bottom rod 1, and the matching and the rotation of the internal spline shaft sleeve 2 and the spline shaft of the supporting ejector rod 4 in a limited range can be realized by moving the manual supporting rod 302.

The axial limiting ring 3 is of a circular ring structure with the maximum outer diameter the same as that of the supporting ejector rod 4, the lower part of the axial limiting ring 3 is of an external thread structure matched with the internal thread at the upper end of the side wall of the hollow round hole of the supporting bottom rod 1, the internal spline shaft sleeve 2 is arranged in the hollow cylindrical hole at the upper end of the supporting bottom rod 1, and then the axial limiting ring 3 is arranged, so that three parts of the axial limiting ring are integrated and then matched with the supporting ejector rod 4.

The support ejector rod 4 external structure is the cylinder bracing piece 503, and the tip of cylinder bracing piece 503 is provided with external spline shaft 502 to the outermost end of integral key shaft is screw thread connecting rod 501, cylinder bracing piece 503 and supporting platform 504 welding, screw thread connecting rod 501 and the internal thread hole that supports the sill bar 1 assemble the axle, and external spline shaft 502 and internal spline axle sleeve 2 are spacing can protect the axial between the screw thread connecting rod 501 to become flexible.

The tooth-shaped structure at one end of the supporting ejector rod 4 faces opposite to the tooth-shaped structure on the surface of the ratchet disc 6, so that the supporting ejector rod 4 is prevented from rotating.

Working principle:

can exert pretightning force to ratchet 6 through rubber pad 7 to make ratchet 6 can carry out the block to support ejector pin 4 bottom, thereby be favorable to preventing that the device can spin when receiving vibrations and lead to becoming flexible, support sill bar 1 and support ejector pin 4 can assemble through the screw thread, the external spline shaft 502 structure of the tip of support ejector pin 4 can cooperate with internal spline shaft sleeve 2, the manual bracing piece 302 of internal spline shaft sleeve 2 and the square spacing groove cooperation of support sill bar 1 lateral wall realize that threaded connection pole 501 is manual locking, when the connecting rod needs to be dismantled, at first pull out manual bracing piece 302 from spacing draw-in groove, simultaneously, separate the external spline shaft 502 of internal spline shaft sleeve 2 and support ejector pin 4 through manual bracing piece 302, then manual dismantlement connecting rod realizes the manual quick dismantlement of threaded connection pole 501.

The utility model relates to a support bottom rod, which comprises a support bottom rod, a support bottom rod and a support base rod; 2. an internal spline sleeve; 3. an axial limiting ring; 4. supporting the ejector rod; 201. side wall regular notches; 202. a sidewall internal thread; 203. a central threaded bore; 301. an internal spline; 302. a manual support bar; 501. a threaded connecting rod; 502. an external spline shaft; 503. a cylindrical support rod; 504. a support platform; 6. a ratchet disc; 7. the rubber pad and the components are all universal standard components or components known to the person skilled in the art, and the structure and the principle of the rubber pad are all known to the person skilled in the art through technical manuals or through routine experimental methods.

While the fundamental and principal features of the utility model and advantages of the utility model have been shown and described, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (6)

1. Manual locking device of screw thread connecting rod, its characterized in that: including supporting sill bar (1), internal spline axle sleeve (2), axial spacing ring (3), support ejector pin (4), ratchet dish (6) and rubber pad (7), support ejector pin (4) and support sill bar (1) and connect through the screw thread, and support sill bar (1) top inside be equipped with internal spline axle sleeve (2), internal spline axle sleeve (2) top is equipped with axial spacing ring (3), support ejector pin (4) and support sill bar (1) internal thread connection, and support ejector pin (4) bottom surface is equipped with tooth form structure to support ejector pin (4) bottom and ratchet dish (6) top block are connected, ratchet dish (6) bottom is equipped with rubber pad (7), and rubber pad (7) bottom and support sill bar (1) inside bonding.

2. The manual locking device of a threaded connecting rod according to claim 1, wherein: the support sill bar (1) is cylindrical structure, and supports sill bar (1) lower extreme and be solid supporting part, support sill bar (1) upper end is hollow interior round hole, and the round hole bottom design has central screw hole (203) to can cooperate with support ejector pin (4) screw thread, open hollow round hole lateral wall has lateral wall rule notch (201), and hollow round hole lateral wall upper end design has lateral wall internal thread (202), can assemble with axial spacing ring (3) screw thread.

3. The manual locking device of a threaded connecting rod according to claim 1, wherein: the inside of the internal spline shaft sleeve (2) is a circular internal spline (301) which can be matched with a spline shaft of the supporting ejector rod (4), the circular outer diameter of the internal spline (301) is slightly smaller than the inner diameter of a circular hole at the upper end of the supporting bottom rod (1), the outer end of the circular ring is provided with a manual supporting rod (302), and the tail end of the manual supporting rod (302) is connected with a square clamping groove of the supporting bottom rod (1).

4. The manual locking device of a threaded connecting rod according to claim 1, wherein: the axial limiting ring (3) is of a circular ring structure with the maximum outer diameter identical to the outer diameter of the supporting ejector rod (4), and the lower part of the axial limiting ring (3) is of an external thread structure matched with the internal thread at the upper end of the side wall of the hollow round hole of the supporting bottom rod (1).

5. The manual locking device of a threaded connecting rod according to claim 1, wherein: the support ejector rod (4) outer structure is a cylindrical support rod (503), an external spline shaft (502) is arranged at the end part of the cylindrical support rod (503), the outermost end of the spline shaft is a threaded connecting rod (501), and the cylindrical support rod (503) is welded with a support platform (504).

6. The manual locking device of a threaded connecting rod according to claim 1, wherein: the tooth-shaped structure at one end of the supporting ejector rod (4) and the tooth-shaped structure on the surface of the ratchet disc (6) face opposite.