Safety lock catch structure of herringbone ladder

Abstract

The utility model relates to a safety lock catch structure of a herringbone ladder, which comprises a herringbone ladder body and is characterized by further comprising a safety buckle structure, a connecting rod, a safety lock structure, a reset structure and a mounting seat, the connecting rod is installed between two rear ladder rods of the herringbone ladder body and located below an upper pedal of the herringbone ladder body, and the safety buckle structure is installed on the connecting rod; the mounting seat is mounted at the bottom of the upper pedal, the safety lock structure is mounted on the mounting seat, and the reset structure is mounted on the safety lock structure, located between the safety lock structure and the mounting seat or the upper pedal and used for driving the safety lock structure to swing. The herringbone ladder has the advantages that on one hand, when the herringbone ladder needs to be completely opened, the herringbone ladder can be automatically locked and fixed after being completely opened, and the phenomenon that the herringbone ladder is folded due to separation of the lock catch is avoided; when the herringbone ladder needs to be folded, only the lock body needs to be easily pressed to separate the lock catch, and the herringbone ladder is convenient to fold; and the lock catch is large in contact area, fixation is more stable, unlocking is convenient, and use is convenient.

Description

Technical Field

[0001] The utility model relates to a safety lock structure of a stepladder. Background Art

[0002] Existing stepladders include those with safety locks and those without safety locks. When a stepladder without a safety lock is fully opened, it is easy to collapse during movement or use. On the one hand, there is a risk of pinching hands. On the other hand, the user may fall after climbing due to the instability of the stepladder, posing a safety hazard. When a stepladder with a safety lock needs to be collapsed, it takes a certain amount of time and effort to open the safety lock, causing inconvenience in use. Summary of the invention

[0003] The utility model aims to overcome the deficiencies of the prior art and provide a safety lock structure for a stepladder. On the one hand, when the stepladder needs to be fully opened, the stepladder will be automatically locked and fixed after being fully opened, and the lock will not be separated to cause the stepladder to be folded; when the stepladder needs to be folded, it only needs to press the lock body to separate the lock, and the stepladder is easy to fold; and the lock has a large contact area, the fixation is more stable, and it is convenient to unlock and use.

[0004] In order to achieve the above object, the utility model is implemented in this way, which is actually a safety lock structure of a herringbone ladder, including a herringbone ladder body, and also including

[0005] A safety buckle structure and a connecting rod; the connecting rod is installed between the two rear ladder rods of the ladder body and is located below the upper step of the ladder body, and the safety buckle structure is installed on the connecting rod;

[0006] A safety lock structure, a reset structure and a mounting seat; the mounting seat is installed above the upper pedal, the safety lock structure is installed on the mounting seat and can swing, the reset structure is installed on the safety lock structure and is located between the safety lock structure and the mounting seat or the upper pedal to drive the safety lock structure to swing, and the safety lock structure can cooperate with the safety buckle structure.

[0007] In the present technical solution, the safety buckle structure includes a safety buckle seat, a safety buckle is provided on the side of the safety buckle seat, the safety buckle seat is installed on the connecting rod, and the safety buckle cooperates with the safety lock structure buckle.

[0008] In the present technical solution, the safety lock structure includes a lock body, which is mounted on a mounting seat and can rotate. The reset structure is mounted on the upper part of the lock body and is located between the lock body and the mounting seat or the upper pedal. A safety lock is provided at the bottom of the lock body, and the safety lock can cooperate with the safety buckle structure lock.

[0009] In the present technical solution, a mounting hole is further provided on the lock body, and the reset structure is a spring, one end of the spring is located in the mounting hole, and the other end of the spring abuts against the mounting seat or the upper pedal.

[0010] In the technical solution, a limiting column is provided in the mounting hole, and one end of the spring is located in the mounting hole and sleeved on the limiting column.

[0011] In the technical solution, a push block is provided extending outwardly from one end of the lock body away from the safety lock.

[0012] In the technical solution, a fixing frame is extended downward from the bottom of the mounting seat, and the other end of the spring is sleeved on the fixing frame.

[0013] Compared with the prior art, the advantages of the utility model are as follows: on the one hand, when the stepladder needs to be fully opened, the stepladder will automatically lock and fix after being fully opened, and will not be folded; when the stepladder needs to be folded, the lock body can be easily pressed to separate the lock, and the stepladder is easy to fold; and the lock has a large contact area, the fixation is more stable, and it is easy to unlock and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the utility model after being unfolded;

[0015] Figure 2 It is a top view of the utility model;

[0016] Figure 3 yes Figure 2 AA section view;

[0017] Figure 4 yes Figure 3 A magnified view of the local area A;

[0018] Figure 5 It is a schematic diagram of the coordination of the safety lock structure and the safety buckle structure of the utility model;

[0019] Figure 6 It is a three-dimensional diagram of the utility model when it is completely folded. DETAILED DESCRIPTION

[0020] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in the various implementation methods of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0021] In the description of the present invention, the terms "one end", "the other end", "top" and "bottom" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.

[0022] In the present invention, unless otherwise clearly specified and limited, the terms "set", "connect" and "install" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, a detachable set, or an integrated one; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, which can make 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 present invention can be understood according to specific circumstances.

[0023] like Figures 1 to 6 As shown, in fact, a safety lock structure of a stepladder includes a stepladder body, characterized in that it also includes

[0024] A safety buckle structure 4 and a connecting rod 3; the connecting rod 3 is installed between the two rear ladder rods 2 of the ladder body and is located below the upper step 1 of the ladder body, and the safety buckle structure 4 is installed on the connecting rod 3;

[0025] A safety lock structure 5, a reset structure 6 and a mounting seat 7; the mounting seat 7 is installed at the bottom of the upper pedal 1, and the mounting seat 7 is located above the safety buckle structure 4. The safety lock structure 5 is installed on the mounting seat 7 and can swing. The reset structure 6 is installed on the safety lock structure 5 and is located between the safety lock structure 5 and the mounting seat 7 or the upper pedal 1 to drive the safety lock structure 5 to swing. The safety lock structure 5 can be locked with the safety buckle structure 4.

[0026] When the stepladder is fully opened, the safety buckle structure 4 is buckled on the safety lock structure 5 and locked, and under the thrust of the reset structure 6, the lock is stable, the stepladder is fully fixed after opening, and the release area of ​​the safety buckle structure 4 and the safety lock structure 5 is large; when the stepladder is folded, the safety lock structure 5 is pushed upward, the safety buckle structure 4 is locked and separated from the safety lock structure 5, and the stepladder begins to be folded, and the safety lock structure 5 is convenient to lift upward, which is convenient to use. On the one hand, when the stepladder needs to be fully opened, the stepladder will automatically lock and fix after it is fully opened, and the folding phenomenon will not occur; when the stepladder needs to be folded, the lock body can also be easily pressed to separate the lock, and the stepladder is convenient to fold.

[0027] In this embodiment, the safety buckle structure 4 includes a safety buckle seat 41, and a safety buckle 42 is provided on the side of the safety buckle seat 41. The safety buckle seat 41 is installed on the connecting rod 3, and the safety buckle 42 is locked with the safety lock structure 5.

[0028] In this embodiment, the safety lock structure 5 includes a lock body 52, which is mounted on the mounting seat 7 and can rotate. The reset structure 6 is installed on the upper part of the lock body 52 and is located between the lock body 52 and the mounting seat 7 or the upper pedal 1; a safety lock 51 is provided at the bottom of the lock body 52, and the safety lock 51 can be locked with the safety buckle structure 4.

[0029] When the ladder is fully opened, the lock body 52 swings downward and the safety lock 51 is buckled on the safety buckle structure 4. When the ladder is folded, the lock body 52 is pushed upward, the safety lock 51 is separated from the safety buckle structure 4, and the ladder begins to be folded.

[0030] In this embodiment, a mounting hole 53 is further provided on the lock body 52 , and the reset structure 6 is a spring, one end of the spring is located in the mounting hole 53 , and the other end of the spring abuts against the mounting seat 7 or the upper pedal 1 .

[0031] In this embodiment, a limiting column 54 is provided in the mounting hole 53 , and one end of the spring is located in the mounting hole 53 and sleeved on the limiting column 54 .

[0032] In this embodiment, a push block 55 is provided extending outwardly from one end of the lock body 52 away from the safety lock 51 .

[0033] In this embodiment, a fixing frame 71 extends downward from the bottom of the mounting seat 7 , and the other end of the spring is sleeved on the fixing frame 71 .

[0034] The above is a detailed description of the embodiments of the present invention in conjunction with the accompanying drawings, but the present invention is not limited to the described embodiments. For ordinary technicians in this field, various changes, modifications, substitutions and deformations of these embodiments without departing from the principle and purpose of the present invention still fall within the scope of protection of the present invention.

Claims

1. A safety lock structure for a stepladder, comprising a stepladder body, characterized in that Also includes A safety buckle structure (4) and a connecting rod (3); the connecting rod (3) is installed between two rear ladder rods (2) of the ladder body and is located below the upper step (1) of the ladder body, and the safety buckle structure (4) is installed on the connecting rod (3); A safety lock structure (5), a reset structure (6) and a mounting seat (7); the mounting seat (7) is mounted at the bottom of the upper pedal (1), the mounting seat (7) is located above the safety buckle structure (4), the safety lock structure (5) is mounted on the mounting seat (7) and can swing, the reset structure (6) is mounted on the safety lock structure (5) and is located between the safety lock structure (5) and the mounting seat (7) or the upper pedal (1) and is used to drive the safety lock structure (5) to swing, and the safety lock structure (5) can be locked with the safety buckle structure (4).

2. The safety lock structure of the stepladder according to claim 1 is characterized in that The safety buckle structure (4) comprises a safety buckle seat (41), a safety buckle (42) is provided on the side of the safety buckle seat (41), the safety buckle seat (41) is mounted on the connecting rod (3), and the safety buckle (42) is locked with the safety lock structure (5).

3. The safety lock structure of the stepladder according to claim 1 is characterized in that The safety lock structure (5) comprises a lock body (52) which is mounted on a mounting seat (7) and is rotatable. The reset structure (6) is mounted on the upper part of the lock body (52) and is located between the lock body (52) and the mounting seat (7) or the upper pedal (1). A safety lock (51) is provided at the bottom of the lock body (52), and the safety lock (51) can be locked with the safety buckle structure (4).

4. The safety lock structure of the stepladder according to claim 3 is characterized in that A mounting hole (53) is also provided on the lock body (52); the reset structure (6) is a spring, one end of the spring is located in the mounting hole (53), and the other end of the spring abuts against the mounting seat (7) or the upper pedal (1).

5. The safety lock structure of the stepladder according to claim 4 is characterized in that A limiting column (54) is provided in the mounting hole (53); one end of the spring is located in the mounting hole (53) and sleeved on the limiting column (54).

6. The safety lock structure of the stepladder according to claim 5 is characterized in that A pushing block (55) is provided on one end of the lock body (52) that is away from the safety lock (51) and extends outward.

7. The safety lock structure of the stepladder according to claim 4 is characterized in that A fixing frame (71) extends downward from the bottom of the mounting seat (7), and the other end of the spring is sleeved on the fixing frame (71).

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