CN220268226U - Portable oiling latch hook - Google Patents

Abstract

The utility model discloses a portable oiling lock hook, and belongs to the field of railway turnout external locking devices. The upper wall of the lock hook is provided with a through hole, the inside of the through hole is in interference fit with an oiling mechanism, the oiling mechanism comprises an oiling cavity, an elastic body and a blocking steel ball, the elastic body and the blocking steel ball are arranged in the oiling cavity, an oil inlet and an oil outlet are respectively formed in two ends of the oiling cavity, the blocking steel ball is abutted to the inner side of the oil inlet under the action of the elastic piece to block the oil inlet, and an oiling channel is formed by separating from the oil inlet under the action of an oiling nozzle of an external oil gun, so that bearing oiling in the lock hook is completed. According to the utility model, the oil injection mechanism is assembled on the upper wall of the lock hook in an interference manner, and the elastic body and the blocking steel ball are adopted to form the blocking and opening of the oil inlet, so that the lubricating grease or the lubricating oil can be simply, conveniently and rapidly injected, the injection efficiency is improved, and the waste of the lubricating grease can be prevented. And avoid oiling mechanism to collide with the damage inefficacy under the foreign object, guarantee the normal use of latch hook, promote latch hook whole life.

Description

Portable oiling latch hook

Technical Field

The utility model relates to the technical field of railway turnout external locking devices, in particular to a portable oiling lock hook.

Background

The existing lock hook used in the external locking device of the railway turnout finishes the filling of lubricating grease or lubricating oil through the guide hole opened at the head of the lock hook. The present utility model relates to a railway switch switching device and a switch hook type outer locking device thereof, wherein a guide hole communicated with a through hole is formed in the upper wall of a lock hook, and one end of the guide hole, which is positioned on the upper wall of the lock hook, can be plugged by a screw plug. Therefore, when the lubricating oil needs to be injected, the screw plug can be detached, then the lubricating oil is injected into the through hole through the guide hole, and the screw plug can be plugged after the injection is finished. The structure is complex in operation, and because the guide hole is the threaded hole in the structure, when the grease gun is used for filling, the grease nipple and the threaded hole are not tightly sealed, grease or lubricating oil usually overflows from a gap between the grease nipple and the threaded hole, so that the grease or the lubricating oil is not filled in place, and the grease or the lubricating oil is wasted. In addition, because the plug is higher than the head plane of the lock hook and has smaller strength, the plug is easy to break when encountering a tool bump, so that the lock hook cannot be oiled, the lock hook structure needs to be replaced integrally, and extra construction and cost are wasted.

Therefore, the conventional lock hook oiling structure has inconvenience and defects, and further improvement is needed. How to create a new portable oiling lock hook, so that the oiling lock hook can simply and conveniently realize oiling of the lock hook, ensure that the bearing in the lock hook is well lubricated, prevent the problems of insufficient oiling and waste of lubricating oil or lubricating grease, solve the problem that the guide hole is easy to collide with the screw plug, improve the service life of the lock hook, meet the requirement of the reliability of an external locking device, and become the aim of improving the current industry urgently.

Disclosure of Invention

The utility model aims to solve the technical problem of providing the portable oiling lock hook, so that oiling of the lock hook can be simply and conveniently realized, good lubrication of an internal bearing of the lock hook is ensured, the problems of insufficient oiling and waste of lubricating oil or lubricating grease can be prevented, the problem that a guide hole is easy to collide due to screw blocking can be solved, the service life of the lock hook is prolonged, the reliability requirement of an external locking device is met, and the defect of the conventional oiling structure of the lock hook is overcome.

In order to solve the technical problems, the utility model provides a portable oiling lock hook, which comprises a lock hook, wherein the upper wall of the lock hook is provided with a through hole, an oiling mechanism is in interference fit with the inside of the through hole, the oiling mechanism comprises an oiling cavity, an elastic body and a blocking steel ball, wherein the elastic body and the blocking steel ball are arranged in the oiling cavity, an oil inlet is formed in the outer end face of the oiling cavity, an oil outlet is formed in the inner end face of the oiling cavity, one end of the elastic body is fixedly connected to the inner side of the inner end face of the oiling cavity, the other end of the elastic body is fixedly connected with the blocking steel ball, the blocking steel ball is abutted to the inner side of the oil inlet under the action of the elastic body to form a blocking of the oil inlet, and the oiling mechanism is separated from the oil inlet to form an oiling channel under the action of an oiling nozzle of an external oil gun, so that bearing oiling of the inside of the lock hook is completed.

Further improved, the through hole adopts a counter bore structure.

Further improved, the height of the oiling mechanism is smaller than or equal to the depth of the counter bore.

Further improved, the central axial direction of the oil outlet is coincident with the central axial direction of the through hole, and the diameter of the oil outlet is smaller than or equal to the diameter of the through hole.

Further improved, the diameter of the through hole is 4mm, the diameter of the cylindrical counter bore is 8mm, the depth of the counter bore is 10mm, and the thickness of the bottom platform of the counter bore is 1.5mm.

Further improved, the bearing inside the lock hook adopts a knuckle bearing, the outer surface of the bearing outer ring of the knuckle bearing is provided with an oil guide groove, the bottom of the oil guide groove is provided with an oil guide hole communicated with the bearing inner ring, and the inner side end of the through hole is communicated with the oil guide groove.

With such a design, the utility model has at least the following advantages:

1. according to the portable oiling lock hook, the oiling mechanism is assembled on the upper wall of the lock hook in an interference manner, and the elastic body and the blocking steel ball are adopted to form blocking and opening of the oil inlet, so that the lubricating grease or lubricating oil can be simply, conveniently and rapidly filled, the lubricating effect of the bearing in the lock hook is improved, the abrasion between the inner ring and the outer ring of the bearing is reduced, the inner ring and the outer ring of the bearing are ensured to rotate flexibly, the lubricating grease or lubricating oil filling efficiency is improved, and the portable oiling lock hook is convenient and rapid and can also prevent the lubricating oil or lubricating grease from being wasted.

2. The oil injection mechanism is pressed into the counter bore of the lock hook in an interference manner, the surface of the oil injection mechanism is flush, the oil injection mechanism is prevented from falling out of the through hole during assembly, the assembly is convenient, the collision damage failure caused by the protrusion of the surface of the oil injection mechanism compared with the surface of the lock hook can be prevented, the normal use of the lock hook is ensured, and the whole service life of the lock hook is prolonged.

Drawings

The foregoing is merely an overview of the present utility model, and the present utility model is further described in detail below with reference to the accompanying drawings and detailed description.

Fig. 1 is a side view of the portable oiling lock hook of the present utility model.

Fig. 2 is a top view of the portable oiling lock hook of the present utility model.

Fig. 3 is a schematic cross-sectional view of a portion of the portable oiling lock hook of the present utility model.

Fig. 4 is a schematic cross-sectional view of a portable oiling shackle of the present utility model.

Fig. 5 is a schematic cross-sectional view of a through hole of a portable oiling lock hook of the present utility model.

Fig. 6 is a schematic structural view of an oiling mechanism of the portable oiling lock hook of the utility model.

Detailed Description

The portable oiling lock hook is an improvement on the existing oiling lock hook, so that the problem that oiling operation can be realized only after the screw plug is detached when the existing oiling lock hook is used for oiling, leakage can occur in the oiling process, and the problem that the existing oiling lock hook is easy to damage and lose efficacy is solved. The embodiment of the improved technical scheme of the utility model is as follows.

Referring to fig. 1 to 4, the portable oiling lock hook of this embodiment comprises a lock hook 1, a through hole 11 is formed in the upper wall of the lock hook 1, and an oiling mechanism 2 is in interference fit with the inside of the through hole 11. The oiling mechanism 2 comprises an oiling cavity 21, an elastic body 22 and a blocking steel ball 23 which are arranged in the oiling cavity, as shown in fig. 6. An oil inlet 24 is formed in the outer end face of the oiling cavity 21, and an oil outlet 25 is formed in the inner end face of the oiling cavity. One end of the elastic body 22 is fixedly connected to the inner side of the inner end face of the oil injection cavity 21, and the other end of the elastic body is fixedly connected to the blocking steel ball 23. The blocking steel ball 23 abuts against the inner side of the oil inlet 24 under the action of the elastic body 22, so as to block the oil inlet 24. During oiling, the blocking steel ball 23 is separated from the oil inlet 24 to form an oiling channel under the action of an oiling nozzle of an external oil gun, so that the bearing inside the lock hook 1 is oiled.

In this embodiment, the through hole 11 adopts a counter bore structure, as shown in fig. 5. If the diameter of the through hole 11 is set to be 4mm according to the existing size of the latch hook, the diameter of the cylindrical counter bore is 8mm, the depth of the counter bore is 10mm, and the thickness of the bottom platform of the counter bore is 1.5mm. Of course, the size of the sinking hole can be changed according to the actual size of the latch hook, so as to meet the requirement that the oiling cavity 21 is pressed into the counter bore in an interference fit manner, and prevent the latch hook from falling out in the use process. The through hole 1 is arranged to be of a counter bore structure, so that the oiling mechanism 2 can not be separated from the through hole 11 when the oiling mechanism 2 is assembled, and the assembly efficiency and reliability are guaranteed.

And, the height of oiling mechanism 2 is less than or equal to the degree of depth of counter bore, the oiling mechanism 2 that assembles like this can not be higher than the upper surface of latch hook 1, can avoid oiling mechanism 2 to be bumped by the foreign object in the latch hook use, guarantees oiling mechanism 2's safety, promotes latch hook 1's life.

In addition, the central axial direction of the oil outlet 25 coincides with the central axial direction of the through hole 11, and the diameter of the oil outlet 25 is smaller than or equal to the diameter of the through hole 11, so that lubricating oil in the oil injection cavity 21 can conveniently enter the lock hook 1 through the oil outlet 25 and the through hole 11.

In this embodiment, the bearing inside the lock hook 1 adopts the knuckle bearing 3, the outer surface of the bearing outer ring 31 of the knuckle bearing 3 is provided with an oil guiding groove 32, the bottom of the oil guiding groove 32 is provided with an oil guiding hole communicated with the bearing inner ring 33, and the inner side end of the through hole 11 is communicated with the oil guiding groove 32. When lubricating oil or lubricating grease is required to be filled, the blocking steel ball 23 is separated from the oil inlet 24 to form an oil injection channel under the action of an oil injection nozzle of an external oil gun, lubricating oil or lubricating grease enters from the oil inlet 21 of the oil injection mechanism 2 and then enters between the inner ring and the outer ring of the bearing through the inner cavity of the oil injection cavity, the oil outlet 25, the through hole 11, the oil guide groove 32 and the oil guide hole, so that effective lubrication on the inside of the lock hook 1 is formed, and the service life of the lock hook is prolonged. When the grease or the lubricating oil overflows from the bearing inner ring 33, the lubricating oil or the lubricating grease is completely filled, the oil filling nozzle of the external oil gun is removed, the blocking steel ball 23 is restored to be abutted against the inner side of the oil inlet 24 under the action of the elastomer 22, so that the oil inlet 24 is blocked, and the oil leakage is prevented.

The portable oiling lock hook is suitable for any hook-type external locking device, and the depth, the size and the roughness of the counter bore meet the interference assembly requirement of an oiling mechanism by processing the counter bore at the head part of the lock hook, so that the oiling cavity is ensured not to be separated in the transportation and use processes after being pressed into the through hole, and the oiling cavity is safe and reliable. The upper plane of the oiling mechanism is not higher than the plane of the lock hook after assembly, so that the phenomenon that oiling cannot be performed due to collision of foreign objects is prevented, the use is affected, and the service life of the oiling lock hook is prolonged. And the oiling mechanism is simple and convenient to fill lubricating oil or lubricating grease through the interaction of the elastic body and the plugging steel ball, is easy to operate, is rapid and practical, and can also prevent the waste of the lubricating oil or the lubricating grease.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

The above description is only of the preferred embodiments of the present utility model, and is not intended to limit the utility model in any way, and some simple modifications, equivalent variations or modifications can be made by those skilled in the art using the teachings disclosed herein, which fall within the scope of the present utility model.

Claims (6)

1. The utility model provides a portable oiling latch hook, includes the latch hook, its characterized in that, the through-hole has been seted up to the upper wall of latch hook, the inside interference fit of through-hole has oiling mechanism, oiling mechanism includes the oiling cavity and sets up elastomer and the shutoff steel ball in its inside, the oil inlet has been seted up on the outer terminal surface of oiling cavity, has seted up the oil-out on its interior terminal surface, elastomer one end fixed connection is in the interior terminal surface inboard of oiling cavity, its other end fixed connection shutoff steel ball, the shutoff steel ball is in under the elastomer effect the butt is in the oil inlet is inboard, forms the shutoff to the oil inlet to under the action of the oiling mouth of outside oil gun, break away from the oil inlet forms the oiling passageway, accomplish to the inside bearing oiling of latch hook.

2. The portable oiling lock hook of claim 1, wherein said through hole is of a counterbore configuration.

3. The portable oiling shackle of claim 2, wherein the oiling mechanism has a height that is less than or equal to the depth of the counterbore.

4. The portable oiling lock hook according to claim 3, wherein the center axis of said oil outlet coincides with the center axis of said through hole, and the diameter of said oil outlet is equal to or smaller than the diameter of said through hole.

5. The portable oiling lock hook of claim 4, wherein the diameter of the through hole is 4mm, the diameter of the cylindrical counter bore is 8mm, the depth of the counter bore is 10mm, and the thickness of the bottom platform of the counter bore is 1.5mm.

6. The portable oiling lock hook according to any one of claims 1 to 5, wherein a knuckle bearing is adopted as a bearing inside the lock hook, an oil guiding groove is formed in the outer surface of a bearing outer ring of the knuckle bearing, an oil guiding hole communicated with the bearing inner ring is formed in the bottom of the oil guiding groove, and the inner side end of the through hole is communicated with the oil guiding groove.