A lock rod, a lock rod connecting structure and a mortise lock

Abstract

This utility model relates to a locking rod, including a rod body and a connecting ring. The connecting ring is fixedly connected to the lower end of the rod body, forming a through-hole. A break is provided at the lower part of the connecting ring. A first end is formed on the left side of the break. The lower surface of the first end is a first inclined surface sloping upwards from left to right, and the upper surface of the first end is a second inclined surface sloping upwards from left to right. A second end is formed on the left side of the break. The lower surface of the second end is a third inclined surface sloping upwards from right to left, and the upper surface of the second end is a fourth inclined surface sloping upwards from right to left. The first and third inclined surfaces constitute a guide opening for guiding the hook to open the break. This utility model also proposes a locking rod connection structure and a top-and-bottom lock. This utility model optimizes the structure of the top-and-bottom lock rod, has the characteristics of lower installation difficulty, and has the characteristics of lower possibility of separation between the locking rod and the top-and-bottom lock hook.

Description

Technical Field

[0001] This utility model relates to the field of lock technology, specifically to a lock rod, a lock rod connection structure, and a top and bottom lock. Background Technology

[0002] Some doors and windows are equipped with triple-lock systems, which not only have a main latch on the side of the door (usually located in the middle of the door leaf), but also retractable latches at the top and bottom of the door leaf. These retractable latches are connected to hooks on the lock body via a vertically arranged locking rod. When the lock body is locked or unlocked, the hooks move the locking rod up and down, which in turn moves the retractable latches to lock or unlock them. Because triple-lock systems use three-point locking, they can significantly improve anti-theft performance. However, existing triple-lock systems may have the following technical problems:

[0003] Some top and bottom locks have a connecting ring on the locking rod. The locking rod is connected to the hook on the lock body through the connecting ring. The connection ring and the hook are difficult to assemble and require additional auxiliary tools to help the hook to engage with the connecting ring, which is complicated and cumbersome.

[0004] The lower part of some locking rods is connected to the hook on the lock body via a connecting hook. Although the connecting hook and the hook are easier to assemble, the connecting hook is easy to fall off the hook during the use of the top and bottom lock, causing the top and bottom lock to malfunction. Utility Model Content

[0005] The purpose of this utility model is to provide a locking rod, a locking rod connection structure, and a top and bottom lock to alleviate or eliminate at least one of the above-mentioned technical problems.

[0006] The present invention discloses a locking rod, comprising a rod body and a connecting ring. The connecting ring is fixedly connected to the lower end of the rod body, and the connecting ring forms a through-hole for connection with a hook on a top and bottom lock body.

[0007] The lower part of the connecting ring is provided with a break, which can serve as a channel for the hook to engage with the connecting hole.

[0008] A first end is formed on the left side of the fracture, the lower side of the first end is a first inclined surface sloping upward from left to right, and the upper side of the first end is a second inclined surface sloping upward from left to right.

[0009] A second end is formed on the left side of the fracture, the lower side of the second end is a third inclined surface that slopes upward from right to left, and the upper side of the second end is a fourth inclined surface that slopes upward from right to left.

[0010] The first inclined surface and the third inclined surface form a guide opening for guiding the hook to push open the break.

[0011] Optionally, both the second inclined plane and the fourth inclined plane are circular arc surfaces with a gradually decreasing tangent slope from bottom to top.

[0012] Optionally, the central axis of the second inclined plane is collinear with the central axis of the fourth inclined plane.

[0013] Optionally, the connecting ring includes a first segment fixedly connected to the lower end of the rod, a second segment extending downward from the left end of the first segment, a third segment extending downward from the right end of the first segment, a first end portion whose left end is connected to the lower end of the second segment, and a second end portion whose right end is connected to the lower end of the third segment.

[0014] Optionally, the distance between the right end face of the first end and the left end face of the second end is less than or equal to 1 mm.

[0015] Optionally, the rod body and the connecting ring are fixedly connected together by welding, and the connecting ring is a spring steel component.

[0016] Optionally, a locking tongue fixedly connected to the upper end of the rod may also be included.

[0017] This utility model also proposes a lock rod connection structure, including a lock body and a lock rod as described in any of the above. The lock body is provided with a hook, the end of which extends to the outside of the lock body. The end of the hook is provided with a hook portion, which cooperates with the connecting hole to connect the hook to the rod body.

[0018] Optionally, the width of the upper part of the hook in the front-back direction is smaller than the width of the inlet end of the guide in the front-back direction;

[0019] This utility model also proposes a top and bottom lock, including the locking rod described in any of the above claims.

[0020] This utility model optimizes the structure of the locking rod of the top and bottom lock, which has the characteristics of lower installation difficulty and lower possibility of separation between the locking rod and the locking hook of the top and bottom lock. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the locking rod described in some embodiments;

[0022] Figure 2 for Figure 1 A magnified view of a portion of the view;

[0023] Figure 3 This is a right view of the locking rod and the hook being in a separated state as described in some embodiments;

[0024] Figure 4This is a right view of the locking rod and the hook in the connected state as described in some embodiments;

[0025] Figure 5 This is a rear view of the locking rod and the hook in a separated state as described in some embodiments;

[0026] Figure 6 This is a rear view of the locking rod and hook in a connected state as described in some embodiments.

[0027] In the diagram, 1—locking bar, 2—lock body, 3—pull hook.

[0028] 11—Rod body, 12—Connecting ring, 13—Connecting hole, 121—First section, 122—Second section, 123—Third section, 124—First end, 125—Second end, 126—First inclined plane, 127—Third inclined plane, 128—Second inclined plane, 129—Fourth inclined plane

[0029] 31—Retractor body, 32—Hook part. Detailed Implementation

[0030] The embodiments of this utility model will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be understood that the preferred embodiments are only for illustrating this utility model and not for limiting the scope of protection of this utility model.

[0031] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. The illustrations only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0032] like Figure 1 and Figure 2The lock rod 1 shown includes a rod body 11 and a connecting ring 12. The connecting ring 12 is fixedly connected to the lower end of the rod body 11. The connecting ring 12 forms a connecting hole 13 that runs through the front and back. The connecting hole 13 is used to connect with a hook 3 on the lock body 2 of the lock. The lower part of the connecting ring 12 is provided with a break. The break can serve as a channel for the hook 3 to be inserted into the connecting hole 13. A first end 124 is formed on the left side of the break. The lower side of the first end 124 is a first inclined surface 126 that slopes upward from left to right. The upper side of the first end 124 is a second inclined surface 128 that slopes upward from left to right. A second end 125 is formed on the left side of the break. The lower side of the second end 125 is a third inclined surface 127 that slopes upward from right to left. The upper side of the second end 125 is a fourth inclined surface 129 that slopes upward from right to left. The first inclined surface 126 and the third inclined surface 127 constitute a guide for guiding the hook 3 to push open the break.

[0033] By adopting the above technical solution, a break is set at the lower part of the connecting ring 12, and a guide port is reasonably set at the break. During the assembly process, the guide port is aligned with the hook 3 and the locking rod 1 is pressed down. The hook 3 can then squeeze open the port and be inserted into the connecting hole 13, thereby realizing the connection between the hook 3 and the connecting ring 12. This method is easy to install, and the locking rod 1 is relatively easy to install.

[0034] In the above technical solution, a second inclined surface 128 and a fourth inclined surface 129 are formed on both sides of the break, so that the first end 124 and the second end 125 form two barb-like structures. During the operation of the top and bottom lock, the hook 3 presses down on the first end 124 and the second end 125. The two barb-like structures can greatly reduce the possibility of the hook 3 squeezing the port downwards, and reduce the possibility of the locking rod 1 and the top and bottom lock hook becoming detached from each other. Moreover, the second inclined surface 128 and the third inclined surface 127 can play a certain guiding role, guiding the hook 3 and the port to deviate from each other, which helps to reduce the possibility of the hook 3 squeezing the port downwards. In other words, using the above-mentioned locking rod 1 helps to improve the locking reliability of the top and bottom lock, ensure the normal use of the top and bottom lock, and reduce accidental unlocking.

[0035] The aforementioned locking rod 1 features a simple and practical structure, is easy to process and manufacture, and is easy to install, which can effectively reduce production costs and construction difficulties.

[0036] In some embodiments, both the second inclined surface 128 and the fourth inclined surface 129 are arc surfaces with a gradually decreasing tangent slope from bottom to top. The arc surfaces are smoother and better guide the hook 3 and the port to deviate from each other, helping to reduce the likelihood of the hook 3 squeezing the port downwards. As a preferred example, the central axis of the second inclined surface 128 is collinear with the central axis of the fourth inclined surface 129.

[0037] As a specific example, the connecting ring 12 includes a first segment 121 fixedly connected to the lower end of the rod 11, a second segment 122122 extending downward from the left end of the first segment 121, a third segment extending downward from the right end of the first segment 121, a first end 124 whose left end is connected to the lower end of the second segment 122122, and a second end 125 whose right end is connected to the lower end of the third segment. Using the above technical solution, the second segment 122122 and the third segment form an elastic arm. During the process of the hook 3 squeezing open the break, the second segment 122122 and the third segment swing outward. After the hook 3 is squeezed into the connecting hole 13, the second segment 122122 and the third segment reset, and the break is reset.

[0038] In some embodiments, the distance between the right end face of the first end 124 and the left end face of the second end 125 is less than or equal to 1 mm. The right end face of the first end 124 and the left end face of the second end 125 define a break. By limiting the width of the break to less than or equal to 1 mm, the anti-detachment performance of the connecting ring 12 can be guaranteed.

[0039] In some embodiments, the rod 11 and the connecting ring 12 are fixedly connected together by welding, and the connecting ring 12 is a spring steel component. In specific implementations, the rod 11 can be made of a lower-cost metal, and the connecting ring 12 can be made of spring steel, so that the second segment 122122 and the third segment have better elasticity, the second segment 122122 and the third segment form a better elastic arm, the hook 3 can more easily squeeze open the break, which helps to reduce the installation difficulty of the locking rod 1, and the break can be better reset, which helps to ensure the anti-loosening performance of the connecting ring 12.

[0040] In some embodiments, the locking rod 1 further includes a locking tongue fixedly connected to the upper end of the rod body 11. The locking tongue may be fixedly connected to the rod body 11 by welding.

[0041] This utility model also proposes a connection structure for the locking rod 1, such as... Figures 3 to 6 As shown, the locking rod 1 connection structure includes a lock body 2 and the locking rod 1 described in any of the above-mentioned embodiments. A hook 3 is provided on the lock body 2. The hook body 31 of the hook 3 extends to the outside of the lock body 2. A hook portion 32 is provided at the end of the hook body 31. The hook portion 32 engages with the connecting hole 13 to connect the hook 3 to the rod body 11. The hook portion 32 is used to connect with the connecting hole 13. When installing the locking rod 1, the hook portion 32 pushes open the break and engages with the connecting hole 13.

[0042] In some embodiments, to ensure that the hook 32 can smoothly push open the break, the width of the upper part of the hook 32 in the front-back direction is smaller than the width of the inlet end of the guide port in the front-back direction. In specific implementations, the width of the guide port gradually decreases from top to bottom, and the lower end of the guide port is the inlet end.

[0043] It should be noted that all existing top and bottom locks are equipped with a hook 3. The connection structure between the hook 3 and the lock body 2 of the top and bottom lock can be implemented with reference to existing top and bottom locks, such as the hook lock type main lock structure of a mechanical anti-theft door lock proposed in patent application No. CN200820097535.5, which will not be elaborated here.

[0044] This utility model also proposes a top and bottom lock, including the locking rod 1 described in any of the above claims.

[0045] The above embodiments are merely preferred embodiments provided to fully illustrate the present utility model, and the protection scope of the present utility model is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present utility model are all within the protection scope of the present utility model. In the description of this specification, the reference to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., means that a specific feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples. Furthermore, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0046] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," and "right," etc., indicate directions based on the appendix. Figure 1-6 The coordinate system in the diagram represents the orientation only for the convenience of describing the present invention and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

Claims

1. A locking bar, characterized in that, The lock includes a rod and a connecting ring. The connecting ring is fixedly connected to the lower end of the rod and forms a through-hole for connecting with a hook on the top and bottom lock body. The lower part of the connecting ring is provided with a break, which can serve as a channel for the hook to engage with the connecting hole. A first end is formed on the left side of the fracture, the lower side of the first end is a first inclined surface sloping upward from left to right, and the upper side of the first end is a second inclined surface sloping upward from left to right. A second end is formed on the left side of the fracture, the lower side of the second end is a third inclined surface that slopes upward from right to left, and the upper side of the second end is a fourth inclined surface that slopes upward from right to left. The first inclined surface and the third inclined surface form a guide opening for guiding the hook to push open the break.

2. The locking rod according to claim 1, characterized in that, Both the second and fourth inclined planes are circular arc surfaces with tangent slopes that gradually decrease from bottom to top.

3. The locking rod according to claim 2, characterized in that, The central axis of the second inclined plane is collinear with the central axis of the fourth inclined plane.

4. The locking rod according to claim 2, characterized in that, The connecting ring includes a first segment fixedly connected to the lower end of the rod, a second segment extending downward from the left end of the first segment, a third segment extending downward from the right end of the first segment, a first end portion whose left end is connected to the lower end of the second segment, and a second end portion whose right end is connected to the lower end of the third segment.

5. The locking rod according to claim 1, characterized in that, The distance between the right end face of the first end and the left end face of the second end is less than or equal to 1 mm.

6. The locking rod according to claim 1, characterized in that, The rod and the connecting ring are fixedly connected together by welding, and the connecting ring is a spring steel component.

7. The locking rod according to claim 1, characterized in that, It also includes a locking tongue that is fixedly connected to the upper end of the rod.

8. A locking rod connection structure, characterized in that, The lock includes a lock body and a lock rod as described in any one of claims 1-7. The lock body is provided with a hook, the end of which extends to the outside of the lock body. The end of the hook is provided with a hook portion, which engages with the connecting hole to connect the hook to the rod body.

9. The locking rod connection structure according to claim 8, characterized in that, The upper part of the hook is narrower in the front-to-back direction than the inlet end of the guide port.

10. A type of top-and-bottom lock, characterized in that, Includes the locking bar as described in any one of claims 1-7.

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