High-sealing type round lock

Abstract

The utility model belongs to the technical field of locks, and particularly relates to a high-sealing type round lock which comprises a lock cylinder and a lock shell, an abutting portion of the lock cylinder is located outside the lock shell, and the abutting portion of the lock cylinder and the outer wall of the lock shell are externally sealed through a sealing ring and a nut. The core part of the lock core extends into the lock shell, and the inner part between the outer wall of the core part of the lock core and the inner wall of the lock shell is sealed through a drum-shaped rubber ring; a positioning pin is arranged between the lock cylinder and the lock shell, inserted into the side wall of the lock shell and slides on the side wall of the lock cylinder in a limited mode. The sealing ring, the rubber pad and the tooth-shaped pad are arranged to perform external sealing protection between the lock cylinder and the lock shell, and then the drum-shaped rubber ring and the gasket are used to perform internal sealing protection between the lock cylinder and the lock shell, so that the sealing performance of the whole round lock product is greatly improved, the dustproof and waterproof sealing function can still be achieved in a pressurized state, and the service life of the round lock product is prolonged. And the scene adaptability of the product is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of locks, in particular to a high-sealing round lock. Background Art

[0002] Currently, the lock products on the market are mainly composed of a lock core and a lock shell. The lock core is installed in the lock shell without being covered. A single sealing ring is used to protect the lock core and the lock shell. The sealing performance of this sealing protection method is not high. In some application scenarios with high sealing requirements, this type of lock product containing a single sealing ring cannot achieve high sealing protection. Utility Model Content

[0003] The purpose of the utility model is to solve the technical problems existing in the background technology. To this end, a highly sealed round lock is provided. Through the lock core structure design, the lock shell is covered as a whole. The sealing ring at the joint of the lock shell and the lock core is used as external sealing protection, and the internal drum-shaped rubber ring is used as internal sealing protection. In this way, a closed space can be effectively formed, and dust and water can be prevented and waterproofed under pressurized conditions.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A highly sealed round lock comprises a lock core and a lock shell, wherein the abutment portion of the lock core is located outside the lock shell, the abutment portion of the lock core and the outer wall of the lock shell are externally sealed by a sealing ring and a nut, the threaded portion of the outer wall of the lock shell is threadedly connected to the nut, and a sealing ring is abutted between the nut and the abutment portion of the lock core;

[0006] The core of the lock core extends into the interior of the lock housing, and the outer wall of the core of the lock core and the inner wall of the lock housing are internally sealed by a drum-shaped rubber ring;

[0007] A positioning pin is arranged between the lock core and the lock shell. The positioning pin is inserted into the side wall of the lock shell and slides on the side wall of the lock core to limit the position.

[0008] Through the above technical solution, both external sealing and internal sealing can be achieved between the lock core and the lock housing, which greatly improves the sealing between the lock core and the lock housing.

[0009] The following is a technical solution further defined by the present utility model, in which the inner wall of the lock housing is arranged as a stepped inner wall, and the stepped inner wall comprises a large inner diameter inner wall and a small inner diameter inner wall, the inner diameter of the large inner diameter inner wall is adapted to the outer diameter of the drum-shaped rubber ring, and a gasket is placed between the small inner diameter inner wall and the drum-shaped rubber ring.

[0010] Through the above technical solution, the gasket and the drum-shaped rubber ring can be placed on the stepped inner wall of the lock housing.

[0011] The following is a technical solution further defined by the present utility model, in which the core of the lock core is arranged as a stepped core, the stepped core comprises a large outer diameter core and a small outer diameter core, the diameter of the small outer diameter core is adapted to the inner diameter of the drum-type rubber ring, and the large outer diameter core and the drum-type rubber ring are in contact with each other.

[0012] Through the above technical solution, the stepped core portion of the lock core can be matched with the drum-shaped rubber ring.

[0013] The following is a technical solution further defined by the present utility model: the large outer diameter core is provided with a pin limiting slide groove, the side wall of the lock housing is provided with a positioning through hole, the positioning pin is inserted into the positioning through hole and slides in the pin limiting slide groove.

[0014] Through the above technical solution, the lock core and the lock housing move relative to each other and are limited by the positioning pins.

[0015] The following is a technical solution further defined by the present utility model: a toothed pad and a rubber pad are placed between the nut and the sealing ring, the rubber pad and the sealing ring are in contact with each other, and the toothed pad and the nut are in contact with each other.

[0016] Through the above technical solution, the toothed pad has multiple teeth, one side of the toothed pad abuts against the nut to increase friction, and the other side of the toothed pad abuts against the rubber pad, which is used to protect the sealing ring and prevent the toothed pad from directly contacting the sealing ring.

[0017] The following is a technical solution further defined by the present invention, in which the core of the lock core passes through the lock housing and is threadedly connected to the locking bolt, and one end of the core of the lock core is set as a rectangular core column, which is socketed and fitted with a rectangular through hole at one end of the locking plate, and the locking plate is locked by the locking bolt.

[0018] Through the above technical solution, the locking plate is locked on the lock core by the locking bolt, so the locking plate can rotate with the rotation of the lock core.

[0019] Compared with the prior art, the utility model has the following technical effects:

[0020] The utility model provides external sealing protection between the lock core and the lock shell by arranging a sealing ring, a rubber pad and a toothed pad, and further provides internal sealing protection between the lock core and the lock shell by using a drum-shaped rubber ring and a gasket, so that the sealing of the entire round lock product is greatly enhanced. Under the pressurized state, it can still play a dust-proof and waterproof sealing function, and the product has stronger scene adaptability.

[0021] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the explosion structure of the utility model;

[0024] Figure 2 It is a three-dimensional structural schematic diagram of the utility model from one viewing angle;

[0025] Figure 3 It is a three-dimensional structural schematic diagram of the utility model from another viewing angle;

[0026] Figure 4 It is a partial structural schematic diagram of the utility model.

[0027] Explanation of the accompanying drawings: 1. lock core; 2. drum-shaped rubber ring; 3. gasket; 4. lock housing; 5. sealing ring; 6. positioning pin; 7. rubber pad; 8. toothed pad; 9. nut; 10. lock plate; 11. locking bolt. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0029] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0031] like Figure 1-4 As shown, a highly sealed round lock is provided, including a lock core 1 and a lock housing 4, and the lock core 1 and the lock housing 4 are sealed internally and externally to meet the requirement of high sealing performance.

[0032] The lock core 1 includes an abutment portion and a core portion.

[0033] The abutment of the lock core 1 can abut against the outer wall of the lock housing 4, so the abutment of the lock core 1 and the outer wall of the lock housing 4 are sealed and protected externally by the sealing ring 5, the rubber pad 7, the toothed pad 8 and the nut 9. Specifically, the abutment of the lock core 1 and the end of the outer wall of the lock housing 4 abut against each other and the gap between them is sealed by the sealing ring 5, and then the rubber pad 7 and the toothed pad 8 are placed, and finally locked by the nut 9. In this structure, the rubber pad 7 is used to protect the sealing ring 5 to prevent the teeth of the toothed pad 8 from directly abutting against the sealing ring 5; the teeth of the toothed pad 8 can increase the friction and extrusion force.

[0034] The core of the lock core 1 extends into the interior of the lock housing 4, and the outer wall of the core of the lock core 1 and the inner wall of the lock housing 4 are sealed and protected by a drum-shaped rubber ring 2 and a gasket 3. Specifically, the inner wall of the lock housing 4 is set as a stepped inner wall, and the stepped inner wall includes a large inner diameter inner wall and a small inner diameter inner wall, the inner diameter of the large inner diameter inner wall is matched with the outer diameter of the drum-shaped rubber ring 2, and a gasket 3 is placed between the small inner diameter inner wall and the drum-shaped rubber ring 2; the core of the lock core 1 is set as a stepped core part, and the stepped core part includes a large outer diameter core part and a small outer diameter core part, the diameter of the small outer diameter core part is matched with the inner diameter of the drum-shaped rubber ring 2, and the large outer diameter core part and the drum-shaped rubber ring 2 are in contact.

[0035] A positioning pin 6 is provided between the lock core 1 and the lock housing 4. Specifically, a pin limiting slot is provided on the large outer diameter core, and a positioning through hole is provided on the side wall of the lock housing 4. The positioning pin 6 is inserted into the positioning through hole and slides in the pin limiting slot. Therefore, the lock core 1 can rotate relative to the lock housing 4 at a certain angle, and the rotation angle is determined by the pin limiting slot; however, the lock core 1 and the lock housing 4 cannot move relative to each other in the axial direction.

[0036] The core of the lock core 1 passes through the lock housing 4 and is threadedly connected to the locking bolt 11. One end of the core of the lock core 1 is set as a rectangular core column, which is sleeved and adapted with the rectangular through hole at one end of the lock plate 10, and the lock plate 10 is locked by the locking bolt 11. The locking bolt 11 locks the lock plate 10 on the lock core 1, so the lock plate 10 can rotate with the rotation of the lock core 1.

[0037] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Any technician familiar with the field can make many possible changes and modifications to the technical solution of the utility model by using the above disclosed methods and technical contents without departing from the scope of the technical solution of the utility model, or modify it into an equivalent embodiment of equivalent changes. Therefore, all equivalent changes made according to the shape, structure and principle of the utility model without departing from the content of the technical solution of the utility model should be included in the protection scope of the utility model.

Claims

1. A highly sealed round lock, comprising a lock core (1) and a lock housing (4), characterized in that: The abutment portion of the lock core (1) is located outside the lock housing (4); the abutment portion of the lock core (1) and the outer wall of the lock housing (4) are externally sealed via a sealing ring (5) and a nut (9); the threaded portion of the outer wall of the lock housing (4) is threadedly connected to the nut (9); a sealing ring (5) is abutted between the nut (9) and the abutment portion of the lock core (1); The core of the lock core (1) extends into the interior of the lock housing (4), and the outer wall of the core of the lock core (1) and the inner wall of the lock housing (4) are internally sealed via a drum-shaped rubber ring (2); A positioning pin (6) is provided between the lock core (1) and the lock housing (4); the positioning pin (6) is inserted into the side wall of the lock housing (4) and slides in a limited position on the side wall of the lock core (1).

2. The high-seal round lock according to claim 1, characterized in that: The inner wall of the lock housing (4) is configured as a stepped inner wall, which includes a large inner diameter inner wall and a small inner diameter inner wall. The inner diameter of the large inner diameter inner wall is matched with the outer diameter of the drum-shaped rubber ring (2), and a gasket (3) is placed between the small inner diameter inner wall and the drum-shaped rubber ring (2).

3. The high-seal round lock according to claim 1, characterized in that: The core of the lock core (1) is configured as a stepped core, which comprises a large outer diameter core and a small outer diameter core, wherein the diameter of the small outer diameter core matches the inner diameter of the drum-shaped rubber ring (2), and the large outer diameter core abuts against the drum-shaped rubber ring (2).

4. The high-seal round lock according to claim 3, characterized in that: The large outer diameter core is provided with a pin limiting sliding groove, and the side wall of the lock housing (4) is provided with a positioning through hole, and the positioning pin (6) is inserted into the positioning through hole and slides in the pin limiting sliding groove.

5. The high-seal round lock according to claim 1, characterized in that: A toothed pad (8) and a rubber pad (7) are placed between the nut (9) and the sealing ring (5); the rubber pad (7) and the sealing ring (5) are in contact with each other, and the toothed pad (8) and the nut (9) are in contact with each other.

6. The high-seal round lock according to claim 1, characterized in that: The core of the lock core (1) passes through the lock housing (4) and is threadedly connected to a locking bolt (11); one end of the core of the lock core (1) is provided as a rectangular core column, which is sleeved and fitted with a rectangular through hole at one end of a locking plate (10), and the locking plate (10) is locked by the locking bolt (11).

Images