阅读说明：本技术 一种双向锁 (Bidirectional lock ) 是由 刘丽双 黄祥谦 周辉 张锐 夏全义 马金玲 齐雪 张晓娇 张丽丽 乔永博 于征 于 2020-05-09 设计创作，主要内容包括：本发明公开了一种双向锁。该双向锁包括第一锁体、第二锁体以及闩锁件。第一锁体呈框状,并且可在锁定位置和解锁位置之间移动。第二锁体呈框状并且包括跨接第二锁体的两个对边的支撑件,第二锁体与第一锁体平行设置并且设置在第一锁体上方,两者之间隔开预定高度。闩锁件呈环形,环形闩锁件环绕支撑件并且可围绕支撑件转动。本发明的双向锁可以在通行的两个方向实施锁定和解锁操作,便于通行。双向圆环锁不会因为环境等原因造成腐蚀或其它破坏而失效,应用领域宽泛。(The invention discloses a bidirectional lock. The bi-directional lock includes a first lock body, a second lock body, and a latch member. The first lock body is frame-shaped and is movable between a locked position and an unlocked position. The second lock body is frame-shaped and includes a support member bridging two opposite sides of the second lock body, and the second lock body is disposed in parallel with and above the first lock body with a predetermined height therebetween. The latching member is annular and surrounds the bracing member and is rotatable about the bracing member. The bidirectional lock can implement locking and unlocking operations in two passing directions, and is convenient to pass. The bidirectional circular ring lock cannot be failed due to corrosion or other damages caused by the environment and the like, and the application field is wide.)

1. A bi-directional lock, comprising:

a first lock body that is frame-shaped and movable between a locked position and an unlocked position;

a second lock body in a frame shape and including a support member bridging two opposite sides of the second lock body, the second lock body being disposed in parallel with and above the first lock body with a predetermined height therebetween;

a ring-shaped latch member surrounding the bracing member and rotatable about the bracing member.

2. The bi-directional lock of claim 1, wherein the first lock body is a rectangular frame.

3. The bi-directional lock of claim 2, wherein the second lock body is a rectangular frame.

4. The bi-directional lock of claim 3, wherein the long side of the first lock body is parallel to the long side of the second lock body.

5. The bi-directional lock of claim 4, wherein the dimensions of the long sides of the first and second lock bodies are each greater than the outer diameter of the annular latch member.

6. The bi-directional lock of claim 1, wherein the predetermined height of the spacing between the first lock body and the second lock body is equal to a thickness of the ring body of the latch member.

7. A bi-directional lock as claimed in claim 3, wherein the latching member is annular in shape.

8. The bi-directional lock of claim 7, wherein the two longer rims of the rectangular second lock body are connected to the bracing member, and the distance between the two shorter rims and the bracing member is greater than half the outer diameter of the circular ring latch member.

9. The bi-directional lock of claim 8, wherein a distance between the support and a rim of the two shorter rims of the second lock body that is closer to the first lock body is smaller than a difference between an outer diameter of the circular ring and a thickness of the circular ring.

10. The bi-directional lock of claim 9, wherein a distance between the jamb of the two shorter jambs of the second lock body that is further from the jamb of the first lock body and the support member is greater than a difference between an outer diameter of the circular ring and a thickness of the circular ring.

Technical Field

The invention relates to a lock, in particular to a bidirectional lock.

Background

In the petroleum and petrochemical device, the connection part of the stair and the platform often causes major safety accidents such as casualties and the like because of the fact that people fall off from the platform due to improper protective measures or no protective measures and the like.

Some prior art is to add a self-closing balustrade structure to a steel vertical ladder. The self-closing railing door realizes the function of automatically closing the railing door through a self-closing hinge or a single-tube type spring hinge. To open-air steel vertical ladder, hinge and spring can take place to damage because of the environmental corrosion, lose the self-closing function, cause the self-closing railing door to become invalid, have the potential safety hazard. For the use situation of the inclined ladder, effective measures are not taken yet to prevent the occurrence of dangerous situations in the prior art. Moreover, the existing self-closing railing door structure is usually a one-way structure, and when people pass through in a back direction, the people need to bear the gravity of the self-closing railing door or the resilience force of a spring in a hinge, so that the passing difficulty is caused.

Thus, there is still room for improvement in terms of ensuring safety issues at the stair and platform connection.

Disclosure of Invention

In view of the above problems, the present invention provides a two-way lock. The bidirectional lock can achieve all functions of the self-closing railing door without complex operation, and simultaneously solves a plurality of defects of the self-closing railing door.

According to an aspect of the present invention, there is provided a bidirectional lock comprising:

a first lock body that is frame-shaped and movable between a locked position and an unlocked position;

a second lock body in a frame shape and including a support member bridging two opposite sides of the second lock body, the second lock body being disposed in parallel with and above the first lock body with a predetermined height therebetween;

a ring-shaped latch member surrounding the bracing member and rotatable about the bracing member.

According to one embodiment of the invention, the first lock body is a rectangular frame.

According to one embodiment of the invention, the second lock body is a rectangular frame.

According to one embodiment of the invention, the long side of the first lock body is parallel to the long side of the second lock body.

According to one embodiment of the invention the dimensions of the long sides of the first lock body and the second lock body are larger than the outer diameter of the ring-shaped latch member.

According to one embodiment of the invention, the predetermined height of the space between the first lock body and the second lock body is equal to the thickness of the ring body of the latch member.

According to one embodiment of the invention, the latch member is ring-shaped.

According to one embodiment of the invention, the two longer rims of the rectangular second lock body are connected to the bracing member, and the distance between the two shorter rims and the bracing member is greater than half of the outer diameter of the circular ring-shaped latch member.

According to one embodiment of the invention, the distance between the support and the rim of the two shorter rims of the second lock body that is closer to the first lock body is smaller than the difference between the outer diameter of the circular ring and the thickness of the circular ring.

According to one embodiment of the invention, the distance between the rim of the second lock body, which is further away from the first lock body, of the two shorter rims of the second lock body and the support is larger than the difference between the outer diameter of the circular ring and the thickness of the circular ring.

Due to the structure, the bidirectional lock can obtain the following beneficial effects:

(1) the operation is simple, and the lock can be opened and closed by one hand;

(2) the structure is simple, the welding can be carried out on site, complex mechanical equipment is not needed, and the whole manufacturing process can be finished by one person;

(3) the chain lock is not like a common chain lock structure, has dispersed parts, complete structure and easy management;

(4) the cost is low, if the construction site uses the leftover bits and pieces, the manufacture can be finished, and the cost is not increased;

(5) the locking and unlocking operation can be carried out in two passing directions, so that the passing is convenient; the bidirectional circular ring lock cannot be failed due to corrosion or other damage caused by the environment and the like;

(6) the application field is wide, and the ladder can be used in places with the same requirements, such as factory gates and other application occasions, and not only can be used on a steel vertical ladder, but also can be used on an inclined ladder.

Drawings

FIG. 1 is a schematic diagram of a bi-directional lock according to one embodiment of the present invention;

FIG. 2A is a schematic diagram of the components of a bi-directional lock according to one embodiment of the present invention;

FIG. 2B is a front view of a bi-directional lock according to one embodiment of the present invention;

fig. 3A-3F are schematic diagrams of the operation of a bidirectional lock according to one embodiment of the present invention.

In the figure:

100 first lock body, 200 second lock body, 300 latch member, 210 bracing member, 220 rectangular frame.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As required, detailed embodiments of the present invention are disclosed in the present specification; however, it is to be understood that the disclosed embodiments are merely exemplary of the invention that may be embodied in various and alternative forms. The figures are not necessarily to scale; some features may be exaggerated or minimized to show details of particular components. The same or similar reference numerals may indicate the same parameters and components or similar modifications and substitutions thereto. In the following description, various operating parameters and components are described in various embodiments as contemplated. These specific parameters and components are used in this specification as examples only and are not meant to be limiting. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

1-2B illustrate a schematic diagram of a bi-directional lock, according to one embodiment of the present invention. The bi-directional lock generally includes a first lock body 100, a second lock body 200, and a latch member 300. In this embodiment, the first lock 100 is in a rectangular frame shape, and the rectangular frame includes four side frames and a hollow area enclosed by the four side frames connected end to end. The second lock body 200 is also in the shape of a rectangular frame, and the rectangular frame includes four side frames and a hollow area enclosed by the four side frames in an end-to-end connection manner. The second lock body 200 also includes a support member 210 spanning two opposite sides of the rectangular frame. In this embodiment, the support 210 is a support rod. The latch 300 is generally annular in shape. The circular ring shaped latch 300 is looped around the support bar 210 and can be rolled around the support bar 210.

The first lock body 100 and the second lock body 200 are parallel and have different heights by a predetermined distance d1 (refer to fig. 2B). The size of d1 may be approximately equal to the thickness of the circular ring of the latch 300. The length directions of the first lock body 100 and the second lock body 200 are identical. Wherein the first lock body 100 is movable between an unlocked position (shown in figure 1) and a locked position (shown in figure 3F). In the unlocked position, the first lock body 100 is relatively far from the latch 300 and the latch 300 is not inserted into the hollow region of the first lock body 100. In the locked position, the latch 300 is inserted into the hollow region of the first lock 100, as shown in fig. 3F.

Referring to fig. 2A, the first lock 100 includes two opposing long sides and two opposing short sides, the two opposing long sides being larger in size than the outer diameter D of the circular ring-shaped latch 300. The second lock body 200 also includes two opposite long sides and two opposite short sides. The support bar 210 divides the hollow area of the second lock body 200 into two parts, one of which is closer to the first lock body 100 (in the unlocked position) and the other of which is farther from the first lock body 100. The length D2 of the portion closer to the first lock body 100 is sized to be greater than the radius of the outer diameter D of the circular ring latch 300, but less than the difference between the outer diameter D of the circular ring latch 300 and the ring thickness (T) (i.e., D-T). The length D3 of the portion further from the first lock body 100 is sized to be greater than the difference between the outer diameter D of the circular ring latch 300 and the circular ring thickness (T) (i.e., D-T).

Although first lock 100 and second lock 200 have a rectangular frame shape in the embodiment shown in fig. 1-2B, the scope of the present invention is not limited thereto. The first lock body 100 and the second lock body 200 may also take other shapes, for example, a quadrangle with circular arcs may also be used, two long sides of the quadrangle are parallel, two short sides are two circular arcs, and similar shapes may also implement the bidirectional lock of the present invention.

3A-3F illustrate schematic diagrams of the operation of a bi-directional lock according to one embodiment of the present invention.

Referring to fig. 3A, the first lock 100 is in an unlocked position in this figure. In this position, the latch 300 has not yet been inserted into the hollow region of the first lock body 100. The first lock 100 is moved closer to the latch member 300. The first lock 100 begins to contact the latch member 300 and continues to move the first lock 100. The latch 300 rolls around the support bar 210 by being pushed by the first lock body 100.

As shown in fig. 3B, the latch 300 rolls to the upper and right sides as viewed in the drawing during rolling around the support bar 210. Continuing to move the first lock body 100, the latch member 300 continues to roll about the support bar 210, as shown in fig. 3C, increasing the portion of the latch member 300 above the second lock body 200.

As shown in fig. 3D, the latch 300 rolls to the uppermost position. At this time, the latch 300 is tangent to the first lock 100. Since the thickness of the latch member 300 is approximately equal to the height difference between the first lock body 100 and the second lock body 200, the latch member 300 is sandwiched between the first lock body 100 and the second lock body 200, and in this state, the latch member 300 is temporarily held in this state.

As shown in fig. 3E, continuing to move the first lock 100, the latch member 300 rolls to the left or remains in the uppermost position, depending on the size of d2, when the hollow region of the first lock 100 is directly below the latch member 300. When the first lock 100 is in the hollow region below the latch 300 and is sized to allow the latch 300 to be inserted, the latch 300 drops under gravity into the hollow region of the first lock 100, as shown in fig. 3F. In this state, when the first lock body 100 is pulled leftward, since the size of D2 is smaller than the difference between the outer diameter D of the circular ring-shaped latch 300 and the circular ring thickness (T) (i.e., D-T), it is possible to prevent the first lock body 100 from being detached from the latch 300, thereby achieving locking of the first lock body 100 and the second lock body 200.

When it is desired to unlock the first lock body 100 and the second lock body 200, the latch member 300 is manually lifted, the first lock body 100 is pulled to the left to move to the unlocked position, the latch member 300 is released, and the reversible lock returns to the unlocked position shown in fig. 3A.

The bidirectional lock can implement locking and unlocking operations in two passing directions, and is convenient to pass. The bidirectional circular lock cannot be failed due to corrosion or other damages caused by the environment and the like, has wide application field, can be used in places with the same requirements, such as factory gates and other application occasions, and can be used on steel vertical ladders and inclined ladders.

It is to be understood that the features listed above for the different embodiments may be combined with each other to form further embodiments within the scope of the invention, where technically feasible. Furthermore, the particular examples and embodiments described herein are non-limiting, and various modifications of the structure, dimensions, and materials set forth above may be made without departing from the scope of the invention.

In this application, the use of the conjunction of the contrary intention is intended to include the conjunction. The conjunction "or" may be used to convey simultaneous features rather than mutually exclusive schemes. In other words, the conjunction "or" should be understood to include "and/or". The term "comprising" is inclusive and has the same scope as "comprising".

The above-described embodiments, particularly any "preferred" embodiments, are possible examples of implementations, and are presented merely for a clear understanding of the principles of the invention. Many variations and modifications may be made to the above-described embodiments without departing substantially from the spirit and principles of the technology described herein. All such modifications are intended to be included within the scope of this disclosure.