CN216354036U - Connecting rod with abrasion-resistant structure for low-voltage circuit breaker - Google Patents

Abstract

The utility model discloses a connecting rod with an abrasion-resistant structure for a low-voltage circuit breaker, which comprises a connecting rod body, wherein two ends of the connecting rod body are respectively connected with one side plate of an energy storage mechanism positioned in the low-voltage circuit breaker; the outer part of the connecting rod body is sleeved with two bearings, the inner peripheral walls of two end parts of the rotating sleeve are respectively provided with an annular caulking groove, the outer ring of each bearing is embedded with the annular caulking groove on one end part of the rotating sleeve, the outer side of each bearing is provided with a first clamp spring, each first clamp spring is abutted against the inner ring in the bearing on the corresponding side, and the outer peripheral wall of the connecting rod body is provided with two first annular clamping grooves which are respectively matched and clamped with one first clamp spring; the utility model can effectively avoid the abrasion of the connecting rod body and the lock hook.

Description

Connecting rod with abrasion-resistant structure for low-voltage circuit breaker

Technical Field

The utility model relates to the technical field of low-voltage circuit breakers, in particular to a connecting rod with an abrasion-resistant structure for a low-voltage circuit breaker.

Background

The low-voltage circuit breaker is an electrical device for controlling the on-off of a circuit, the energy storage mechanism is an important mechanism in the low-voltage circuit breaker, and after the energy storage mechanism is reset, a connecting rod in the energy storage mechanism needs to be matched and hooked with a locking hook in a locking mechanism in the low-voltage circuit breaker; the connecting rod that is arranged in energy storage mechanism at present when carrying out the hookup with the latch hook in locking mechanical system, the connecting rod at first can slide on the outer wall of latch hook, when treating that the connecting rod slides barb department on the latch hook, the connecting rod then can realize with the hookup of the barb on the latch hook, nevertheless carry out the in-process of hookup at above-mentioned connecting rod and latch hook, can produce sliding friction between connecting rod and the latch hook, lead to the condition that wearing and tearing appear in connecting rod and latch hook in the past easily for a long time to can influence the life of connecting rod and latch hook.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a connecting rod with a wear-resistant structure for a low-voltage circuit breaker, which can effectively avoid the condition that a connecting rod body and a lock hook in a locking mechanism positioned in the low-voltage circuit breaker are worn.

The connecting rod for the low-voltage circuit breaker with the abrasion-resistant structure comprises a connecting rod body, wherein two ends of the connecting rod body are respectively connected with one side plate in an energy storage mechanism positioned in the low-voltage circuit breaker; the outer part of the connecting rod body is sleeved with two bearings, the inner peripheral walls of two end parts of the rotating sleeve are respectively provided with an annular caulking groove, the outer ring of each bearing is embedded with the annular caulking groove on one end part of the rotating sleeve, the outer side of each bearing is provided with a first clamp spring, each first clamp spring is abutted against the inner ring in the bearing on the corresponding side, and the outer peripheral wall of the connecting rod body is provided with two first annular clamping grooves which are respectively matched and clamped with one first clamp spring; the first clamp spring is used for limiting the bearing.

The connecting rod for the low-voltage circuit breaker with the abrasion-resistant structure is characterized in that the inner peripheral wall of the opening end of each annular caulking groove is provided with a first annular chamfer surface, and the first annular chamfer surface is used for being matched and guided with the outer ring of the bearing so as to be convenient for the outer ring of the bearing to be embedded into the annular caulking groove; after all setting up first annular chamfer face on the internal perisporium at every annular caulking groove open end, when the outer lane of bearing and annular caulking groove gomphosis, the outer lane of bearing can be embedded into the annular caulking groove with the outer lane of making things convenient for the bearing with the cooperation direction of first annular chamfer face, so, can bring the convenience for the assembly of bearing and rotating sleeve.

The connecting rod with the abrasion-resistant structure for the low-voltage circuit breaker is characterized in that two end parts of a connecting rod body are respectively and movably arranged in one side plate of an energy storage mechanism in the low-voltage circuit breaker in a penetrating mode, each end part of the connecting rod body movably penetrates through the side plate on the corresponding side and then is in matched clamping connection with a second clamping spring, each second clamping spring abuts against the outer side wall of the side plate on the corresponding side, and second annular clamping grooves which are respectively used for being in matched clamping connection with one second clamping spring are formed in the outer peripheral wall of the connecting rod body; after through adopting this kind of structure, after two tip at the connecting rod body pass one of them curb plate that is arranged in the inside energy storage mechanism of low-voltage circuit breaker respectively, the accessible cooperates the joint second jump ring to realize spacing to the connecting rod body on two tip of connecting rod body, two second jump rings cooperate the joint back with two tip of connecting rod body promptly, every second jump ring homoenergetic is leaned on with the lateral wall of the curb plate that corresponds the side, so, can realize spacing to the connecting rod body, also realized the connecting rod body and be arranged in the inside energy storage mechanism's of low-voltage circuit breaker two blocks of curb plates be connected, in addition, after adopting this kind of mode, can bring the convenience for the connecting rod body and the connection that is arranged in the inside energy storage mechanism of low-voltage circuit breaker.

The connecting rod for the low-voltage circuit breaker with the abrasion-resistant structure is characterized in that the outer peripheral walls of the two ends of the connecting rod body are respectively provided with a second annular chamfer surface, and the second annular chamfer surfaces are used for being matched with the inner peripheral wall of the through hole on the side plate to guide so as to facilitate the end of the connecting rod body to penetrate through the through hole on the side plate; after the second annular chamfer surfaces are arranged on the peripheral walls of the two ends of the connecting rod body, when the connecting rod body is assembled with the side plate located in the energy storage mechanism inside the low-voltage circuit breaker, the end of the connecting rod body can conveniently penetrate through holes located on the side plate, and therefore convenience can be brought to assembly of the connecting rod body and the side plate located in the energy storage mechanism inside the low-voltage circuit breaker.

According to the utility model, after the rotating sleeve is sleeved outside the connecting rod body, the rotating sleeve can rotate relative to the connecting rod body through the bearing, so that when the connecting rod body in the energy storage mechanism needs to be hooked with the lock hook in the locking mechanism, the rotating sleeve firstly rolls on the outer wall of the lock hook, and when the rotating sleeve rolls to the barb on the lock hook, the rotating sleeve can be hooked with the barb on the lock hook, namely sliding friction generated by the existing connecting rod and the lock hook can be converted into rolling friction through the matching of the rotating sleeve and the lock hook, so that the connecting rod body and the lock hook can be effectively prevented from being worn, and the service lives of the connecting rod and the lock hook can be further prolonged.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic sectional structure of the present invention.

Detailed Description

In the following description, for purposes of explanation, numerous implementation details are set forth in order to provide a thorough understanding of the various embodiments of the present invention. It should be understood, however, that these implementation details are not to be interpreted as limiting the utility model. That is, in some embodiments of the utility model, such implementation details are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.

In addition, the descriptions related to the first, the second, etc. in the present invention are only used for description purposes, do not particularly refer to an order or sequence, and do not limit the present invention, but only distinguish components or operations described in the same technical terms, and are not understood to indicate or imply relative importance or implicitly indicate the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The connecting rod with the abrasion-resistant structure for the low-voltage circuit breaker comprises a connecting rod body 1, wherein two ends of the connecting rod body 1 are respectively connected with one side plate of an energy storage mechanism positioned in the low-voltage circuit breaker, a rotating sleeve 2 is sleeved outside the middle part of the connecting rod body 1, and a gap is reserved between the inner peripheral wall of the rotating sleeve 2 and the outer peripheral wall of the connecting rod body 1; the outer part of the connecting rod body 1 is sleeved with two bearings 3, the inner peripheral walls of two end parts of the rotating sleeve 2 are respectively provided with an annular caulking groove 21, the outer ring of each bearing 3 is embedded with the annular caulking groove 21 on one end part of the rotating sleeve 2, the outer side of each bearing 3 is provided with a first clamp spring 4, each first clamp spring 4 is abutted against the inner ring of the corresponding bearing 3, and the outer peripheral wall of the connecting rod body 1 is provided with two first annular clamping grooves 11 which are respectively matched and clamped with one first clamp spring 4; the first clamp spring is used for limiting the bearing.

A first annular chamfer surface 22 is arranged on the inner peripheral wall of the opening end of each annular caulking groove 21, and the first annular chamfer surface 22 is used for being matched and guided with the outer ring of the bearing 3 so as to be convenient for the outer ring of the bearing 3 to be embedded into the annular caulking groove 21; after all setting up first annular chamfer face on the internal perisporium at every annular caulking groove open end, when the outer lane of bearing and annular caulking groove gomphosis, the outer lane of bearing can be embedded into the annular caulking groove with the outer lane of making things convenient for the bearing with the cooperation direction of first annular chamfer face, so, can bring the convenience for the assembly of bearing and rotating sleeve.

Two end parts of the connecting rod body 1 are movably arranged in one side plate of the energy storage mechanism in the low-voltage circuit breaker in a penetrating mode respectively, each end part of the connecting rod body 1 movably penetrates through the side plate on the corresponding side and then is in clamping fit with a second clamp spring 5, each second clamp spring 5 abuts against the outer side wall of the side plate on the corresponding side, and a second annular clamping groove 12 used for being in clamping fit with one second clamp spring 5 is formed in the outer peripheral wall of the connecting rod body 1 respectively; after through adopting this kind of structure, after two tip at the connecting rod body pass one of them curb plate that is arranged in the inside energy storage mechanism of low-voltage circuit breaker respectively, the accessible cooperates the joint second jump ring to realize spacing to the connecting rod body on two tip of connecting rod body, two second jump rings cooperate the joint back with two tip of connecting rod body promptly, every second jump ring homoenergetic is leaned on with the lateral wall of the curb plate that corresponds the side, so, can realize spacing to the connecting rod body, also realized the connecting rod body and be arranged in the inside energy storage mechanism's of low-voltage circuit breaker two blocks of curb plates be connected, in addition, after adopting this kind of mode, can bring the convenience for the connecting rod body and the connection that is arranged in the inside energy storage mechanism of low-voltage circuit breaker.

The outer peripheral walls of the two ends of the connecting rod body 1 are respectively provided with a second annular chamfer surface 13, and the second annular chamfer surfaces 13 are used for being matched with the inner peripheral wall of the through hole on the side plate for guiding so as to facilitate the end of the connecting rod body 1 to penetrate through the through hole on the side plate; after the second annular chamfer surfaces are arranged on the peripheral walls of the two ends of the connecting rod body, when the connecting rod body is assembled with the side plate located in the energy storage mechanism inside the low-voltage circuit breaker, the end of the connecting rod body can conveniently penetrate through holes located on the side plate, and therefore convenience can be brought to assembly of the connecting rod body and the side plate located in the energy storage mechanism inside the low-voltage circuit breaker.

The above description is only an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement or the like made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (4)

1. The utility model provides a connecting rod for low-voltage circuit breaker with structure of resistance to wears, includes connecting rod body (1), the both ends of connecting rod body (1) are connected with one of them curb plate that is arranged in the inside energy storage mechanism of low-voltage circuit breaker respectively, its characterized in that: a rotating sleeve (2) is sleeved outside the middle part of the connecting rod body (1), and a gap is reserved between the inner peripheral wall of the rotating sleeve (2) and the outer peripheral wall of the connecting rod body (1); the outside cover of connecting rod body (1) is equipped with two bearings (3), all be provided with annular caulking groove (21), every on the internal perisporium of rotating two tip of cover (2) the outer lane of bearing (3) all with rotate annular caulking groove (21) gomphosis on one of them tip of cover (2), every the outside of bearing (3) all is provided with one first jump ring (4), every first jump ring (4) all offsets with the inner circle in bearing (3) that corresponds the side and leans on, be provided with two on the periphery wall of connecting rod body (1) respectively be used for with first jump ring (4) cooperation joint among them first annular clamping groove (11).

2. The connecting rod for low-voltage circuit breakers with an anti-wear structure according to claim 1, characterized in that each of said annular caulking grooves (21) is provided on an inner peripheral wall of an open end thereof with a first annular chamfered surface (22), said first annular chamfered surface (22) being intended to be guided in cooperation with an outer ring of the bearing (3) to facilitate the fitting of the outer ring of the bearing (3) into the annular caulking groove (21).

3. The connecting rod for low-voltage circuit breakers with abrasion-resistant structure according to claim 1, wherein two ends of the connecting rod body (1) are movably inserted into one of the side plates of the energy storage mechanism inside the low-voltage circuit breaker, each end of the connecting rod body (1) movably penetrates through the corresponding side plate and then is fittingly engaged with a second snap spring (5), each second snap spring (5) abuts against an outer side wall of the corresponding side plate, and a second annular clamping groove (12) for fittingly engaging with one second snap spring (5) is arranged on the outer peripheral wall of the connecting rod body (1).

4. The tie rod for low-voltage circuit breakers with anti-wear structure according to claim 3, characterized in that the outer peripheral wall of both ends of the tie rod body (1) is provided with a second annular chamfered surface (13), said second annular chamfered surface (13) being intended to be guided in cooperation with the inner peripheral wall of the through hole located on the side plate to facilitate the passage of the end of the tie rod body (1) through the through hole located on the side plate.

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