Sealing ring for lock beam

Abstract

The utility model discloses a sealing ring for a lock beam, and belongs to the technical field of sealing rings for lock beams. A sealing ring for a lock beam is installed on the lock beam of a padlock, and the lock beam is selectively connected with a lock body in a locking mode. The sealing ring is made of an elastic material; the sealing ring comprises a clamping ring on the upper side and a buffering ring on the lower side. The clamping ring is elastically clamped outside the lock beam; the buffer ring is a drum-shaped ring of which the middle part protrudes outwards; the buffer ring is movably connected with the periphery of the lock beam; the lower end of the buffer ring is used for abutting against the upper end of a lock body of the padlock to achieve sealing. In the locking state, the outward protruding degree of the middle of the buffer ring due to extrusion of the lock body is obvious compared with that in the normal state. The sealing device can achieve long abutting sealing stroke, is made of soft materials, facilitates abutting and is good in sealing effect.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of lock beam sealing ring, more specifically relates to a sealing ring for lock beam. BACKGROUND

[0002] Padlock is the theftproof article that people commonly used, is composed of lock body and lock beam, lock beam is installed in the lock body, keyhole is set at the bottom of lock body. In order to prevent the lock body from rusting, the lock body will be wrapped with plastic lock shell, but rainwater will enter the lock beam hole of lock body along the lock beam in actual use, and the internal parts of padlock will also rust and damage after long-term use, resulting in padlock failure.

[0003] Although now part of prior art is provided with a slot on the lock beam, and a sealing ring is sleeved at the slot, but there is still gap between the upper and lower slots when combining, there is work difference, resulting in poor waterproof sealing effect. Moreover, most of the sealing ring is hard, resulting in short stroke when the lock beam moves and abuts, and the sealing effect cannot be effectively realized. UTILITY MODEL CONTENTS

[0004] The utility model solves the technical problem to provide a sealing ring for lock beam, which can realize long abutting sealing stroke and soft material for convenient abutting, and has good sealing effect.

[0005] The sealing ring for lock beam of the utility model is installed on the lock beam of padlock, and the lock beam and the lock body are selectively locked and connected. The sealing ring is made of elastic material. The sealing ring comprises a clamping ring on the upper side and a buffer ring on the lower side. The clamping ring is elastically clamped on the outside of the lock beam. The buffer ring is a drum-shaped ring with a protruding middle part. The buffer ring is movably connected with the outer periphery of the lock beam. The lower end of the buffer ring is used to abut and press against the upper end of the lock body of the padlock to realize sealing. In the locked state, the middle part of the buffer ring protrudes outward to a greater extent than in the normal state due to the extrusion of the lock body.

[0006] As a further improvement of the utility model, the thickness of the buffer ring decreases from the end close to the clamping ring to the bottom end of the buffer ring.

[0007] As a further improvement of the utility model, the lower end of the buffer ring is always attached to the outer periphery of the lock beam.

[0008] As a further improvement of the utility model, the lock body comprises a lock hole, the lock hole is arranged on both sides of the upper end of the lock body, and the end of the lock hole is mechanically connected with the end of the lock beam, and the other end of the lock hole is mechanically connected with the first end of the lock beam. A protrusion is arranged on the outer periphery of the upper end of the lock hole, and the diameter of the protrusion is greater than the diameter of the lock hole to form an abutting surface.

[0009] As a further improvement of the utility model, the lock beam comprises notches, the notches are respectively arranged at the first end and the last end of the lock beam, and the notches are arranged around the wall of the lock beam; the diameter of the notch is smaller than the diameter of the wall of the lock beam, so that abutting edges are formed on the upper and lower walls of the notch and the lock beam; and the sealing ring is sleeved on the notch.

[0010] As a further improvement of the utility model, the center height of the sealing ring is greater than the opening height of the notch.

[0011] As a further improvement of the utility model, the diameter of the boss matches the inner diameter of the lower end of the sealing ring.

[0012] As a further improvement of the utility model, when the lock is closed, the sealing ring is lowered through the lock beam, the lower end of the sealing ring wraps the outer periphery of the boss, the outer diameter of the sealing ring increases from the lower end to the middle part; and at the same time that the lower end of the sealing ring is extruded, the upper end of the sealing ring is clamped to abut against the abutting edge, and the upper end surface of the sealing ring is also extruded, so that the middle part of the sealing ring bulges outward and completely seals the lock hole.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] Compared with the prior art, the wall of the sealing ring is thinner and softer, so as to have the ability to deform. The sealing ring is sleeved on the notch, when the lock is closed, the lower end of the sealing ring wraps the boss and extrudes the lower end of the sealing ring, at the same time, the upper end of the sealing ring abuts against the abutting edge and is also extruded, so that the middle part of the sealing ring bulges outward, so as to seal the gap on the upper end of the notch and the gap in the lock hole. The center height of the sealing ring is greater than the opening height of the notch, so as to improve the sealing stroke. The sealing effect of the sealing ring on the lock hole and the notch is better, and the material consumption is more cost-effective. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a perspective structural schematic view when the lock beam of the utility model is opened;

[0016] Figure 2 It is a front view structural schematic view when the lock beam of the utility model is opened;

[0017] Figure 3 It is an enlarged structural schematic view of A in the utility model; Figure 2

[0018] Figure 4 It is a sectional view structural schematic view when the lock beam of the utility model is opened;

[0019] Figure 5 It is an enlarged structural schematic view of B in the utility model; Figure 4

[0020] ​​Figure 6 It is the three-dimensional structure schematic view of the locking beam closing of the utility model;

[0021] Figure 7 It is the cross section structure schematic view of the locking beam closing of the utility model;

[0022] Figure 8 It is the utility model Figure 7 It is the enlarged structure schematic view of C in the middle;

[0023] Figure 9 It is the three-dimensional structure schematic view of the sealing ring of the utility model;

[0024] Figure 10 It is the cross section structure schematic view of the sealing ring of the utility model.

[0025] Mark explanation in the drawing:

[0026] Lock body 1, lock hole 11, boss 111, locking beam 2, slot 21, sealing ring 3, clamping ring 31. Specific implementation

[0027] Specific embodiment one: please refer to Figures 1-7 The utility model discloses a sealing ring for locking beam, including lock body 1, locking beam 2 and sealing ring 3, lock body 1 with locking beam 2 mechanical connection, this connection method is the routine technology of the field technology, here is not repeated. Sealing ring 3 is set in the both ends of locking beam 2.

[0028] Lock body 1 includes lock hole 11, the lock hole 11 is set up in the upper end both sides of lock body 1, and the mechanical connection of one end lock hole 11 with the end of locking beam 2 can bounce out, and the other end of lock hole 11 is mechanically connected with the first end of locking beam 2;When unlocking, the end of locking beam 2 bounces out and drives the whole upward displacement of locking beam 2, to make the first end of locking beam 2 be located outside lock hole 11. The upper end of the outer circle of lock hole 11 is also provided with a circle boss 111, and the diameter of boss 111 is greater than the diameter of lock hole 11, to form an abutting surface.

[0029] Locking beam 2 includes slot 21, and the slot 21 is respectively set up in the first and last end of locking beam 2, and the slot 21 is set up around the wall of locking beam 2. The diameter of slot 21 is less than the diameter of the wall of locking beam 2, to form abutting edges in the upper and lower walls of slot 21 and locking beam 2.

[0030] The sealing ring 3 is elastically sleeved on the notch 21 of the lock beam 2, and the inner diameter of the sealing ring 3 matches the diameter of the notch 21. The center height of the sealing ring 3 is greater than the opening height of the notch 21, so that the sealing ring 3 can cover the notch 21. The sealing ring 3 comprises a clamping ring 31 and a buffer ring. The clamping ring 31 is located at the upper end of the sealing ring 3 and is elastically clamped on the outer periphery of the lock beam 2. The buffer ring is located at the lower end of the clamping ring 31 and is always in contact with the outer periphery of the lock beam 2. The buffer ring is movably connected with the lock beam 2 and is integrally formed with the clamping ring 31. The inner diameter of the clamping ring 31 is the same as the outer diameter of the upper end of the clamping ring 31. The sealing ring 3 is made of a deformable material. The outer diameters of the upper end and the lower end of the sealing ring 3 are equal, and the outer diameter of the sealing ring 3 decreases from the middle part to the upper and lower ends. The buffer ring is a drum-shaped ring with a convex middle part. The buffer ring is movably connected with the outer periphery of the lock beam 2. The lower end of the buffer ring is used to abut against the upper end of the lock body 1 to achieve sealing. When the lock beam 2 is locked with the lock body 1, the middle part of the buffer ring is extruded by the lock body 1 and protrudes outward more obviously than in the normal state. The bottom end of the buffer ring abuts against the upper end of the lock body 1, and the bottom end of the buffer ring of the sealing ring 3 is extruded to make the bottom end of the buffer ring abut against the upper end of the lock body 1 and the outer periphery of the lock beam 2 at the same time, and keep sealing. The thickness of the buffer ring decreases from the end close to the clamping ring 31 to the bottom end of the buffer ring.

[0031] The diameter of the boss 111 matches the inner diameter of the lower end of the sealing ring 3, so that the lower end of the sealing ring 3 can wrap around the outer periphery of the boss 111 and abut against it.

[0032] When the lock is in the open state, the sealing ring 3 is sleeved on the notch 21, and there is a gap between the upper end of the sealing ring 3 and the top end of the notch 21 due to the weight, and the clamping ring 31 is always located in the notch 21.

[0033] When the lock is closed, the sealing ring 3 moves downward through the lock beam 2, the lower end of the sealing ring 3 wraps around the outer periphery of the boss 111, and the outer diameter of the sealing ring 3 increases from the lower end to the middle part. At the same time that the lower end of the sealing ring 3 is extruded, the upper end of the sealing ring 3 abuts against the abutting edge, and the upper end surface of the sealing ring 3 is also extruded, so that the middle part of the sealing ring 3 protrudes outward and completely seals the lock hole 11.

[0034] Working principle:

[0035] In use, the wall of the sealing ring is thin and soft to have the ability to deform. The sealing ring is sleeved on the notch. When the lock is closed, the lower end of the sealing ring wraps around the boss and extrudes the lower end of the sealing ring, and the upper end of the sealing ring also abuts against the abutting edge and is also extruded, so that the middle part of the sealing ring protrudes outward to seal the gap at the upper end of the notch and the gap at the lock hole. Moreover, the center height of the sealing ring of the utility model is greater than the opening height of the notch to improve the sealing stroke.

Claims

1. A sealing ring for a shackle, which is installed on a shackle (2) of a padlock, the shackle (2) being selectively lockingly connected with a lock body (1); characterized in that: The sealing ring (3) is made of elastic material; the sealing ring (3) comprises a clamping ring (31) on the upper side and a buffer ring on the lower side; the clamping ring (31) is elastically clamped outside the lock beam (2); the buffer ring is a drum-shaped ring with a bulge in the middle; the buffer ring is movably connected with the outer periphery of the lock beam (2); the lower end of the buffer ring is used to abut against the upper end of the lock body (1) to achieve sealing; in the locked state, the middle part of the buffer ring is bulged outward to a greater extent than normal due to the extrusion of the lock body (1).

2. A sealing ring for a lock beam according to claim 1, characterized in that: The thickness of the buffer ring decreases from one end close to the clamping ring (31) to the bottom end of the buffer ring.

3. The seal ring for a lock beam according to claim 1, wherein: The lower end of the buffer ring is always in contact with the outer periphery of the lock beam (2).

4. The seal ring for a lock beam according to claim 1, wherein: The lock body (1) comprises a lock hole (11) which is provided on the upper end of the lock body (1) on both sides, and one end of the lock hole (11) is mechanically connected with the end of the lock beam (2) which can be popped out, and the other end of the lock hole (11) is mechanically connected with the head of the lock beam (2); a set of bosses (111) are further provided on the outer periphery of the upper end of the lock hole (11), and the diameter of the bosses (111) is greater than the diameter of the lock hole (11) to form an abutting surface.

5. The seal ring for a lock beam according to claim 1, wherein: The lock beam (2) comprises a notch (21) which is provided on the head and the end of the lock beam (2) respectively, and the notch (21) is provided around the wall of the lock beam (2); the diameter of the notch (21) is smaller than the diameter of the wall of the lock beam (2) to form an abutting edge on the upper and lower walls of the notch (21) and the lock beam (2); the sealing ring (3) is elastically sleeved on the notch (21).

6. A sealing ring for a lock beam according to claim 3, characterized in that: The center height of the sealing ring (3) is greater than the opening height of the notch (21).

7. A sealing ring for a lock beam according to claim 4, characterized in that: The diameter of the boss (111) matches the inner diameter of the lower end of the sealing ring (3).

8. A sealing ring for a lock beam according to claim 7, characterized in that: When the lock is closed, the sealing ring (3) moves downward through the lock beam (2), the lower end of the sealing ring (3) wraps around the outer periphery of the boss (111), the outer diameter of the sealing ring (3) increases from the lower end to the middle part; at the same time, the lower end of the sealing ring (3) is extruded, the upper end clamping ring (31) of the sealing ring (3) abuts against the abutting edge, and the upper end surface of the sealing ring (3) is also extruded, so that the middle part of the sealing ring (3) bulges outward and completely seals the lock hole (11).

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