Anti-pinch structure for ladder

Abstract

The utility model belongs to the technical field of ladder accessories, and discloses an anti-pinch structure for a ladder, which comprises a connecting piece used for connecting a ladder beam, one side of the connecting piece facing the ladder beam sinks inwards to form a groove matched with the ladder beam, and one side of the connecting piece adjacent to the groove is fixedly connected with a spring unfolded in a normal state. The connecting piece comprises a mounting frame, one side of the mounting frame sinks inwards to form a mounting groove, a limiting block adheres to the inner wall of the mounting groove, and the side, facing the ladder beam, of the limiting block sinks inwards to form an arc-shaped groove. When a person folds the folding ladder, the springs are compressed through the ladder beams, then the springs generate reverse acting force to abut against the ladder beams, gaps exist between the ladder beams, hands are prevented from being clamped by the folding ladder, the device can be used for folding ladders of different specifications, and the use range of the device is widened.

Description

Technical Field

[0001] The utility model belongs to the technical field of ladder accessories, and in particular relates to a hand-pinching prevention structure for a ladder. Background Art

[0002] In daily life and work, ladders are used as an important auxiliary tool in many fields such as construction, maintenance, and cleaning. However, traditional ladder designs often only focus on their basic functions and durability, but not enough on safety, especially hand pinching prevention. Since ladders are designed for portability, most existing ladders are foldable, which makes it easy for users to get their hands pinched during use. Especially when folding, storing or adjusting the ladder, the risk of hand pinching is greatly increased due to the gaps or angles between the steps.

[0003] In order to avoid the occurrence of an anti-pinch structure when folding, storing or adjusting the ladder, for example, in the Chinese patent with the announcement number "CN214697659 U", an anti-pinch structure for a ladder is disclosed, the device includes a safety support buckle, a safety support horizontal support platform and a safety support support body, the safety support buckle, the safety support horizontal support platform and the safety support support body are an integral injection molding structure, the internal clamping structure of the safety support buckle is consistent with the cross-sectional structure of the folding ladder crossbar, the safety support support body is arranged above the safety support buckle, the safety support horizontal support platform is located above the safety support support body, the safety support support body and the safety support buckle are arranged at an inclined angle. Although the above device can prevent the ladder from pinching hands to a certain extent when used, the device can only be used for a specific type of ladder and cannot be used with different types of ladders. Moreover, after the structure is connected to the device, there will be a larger unfolding angle when the device is folded, which increases the difficulty of storage and reduces the storage efficiency. Utility Model Content

[0004] The utility model aims to provide a hand pinching prevention structure for a ladder to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: an anti-pinch structure for a ladder, comprising a connecting piece for connecting a ladder beam, wherein the connecting piece is recessed toward one side of the ladder beam to form a groove matching the ladder beam, and a spring that is normally expanded is fixedly connected to one side of the connecting piece adjacent to the groove.

[0006] Preferably, the free end of the spring is fixedly connected to a base plate.

[0007] Preferably, the connecting member comprises a mounting frame, one side of the mounting frame is recessed to form a mounting groove, and a limiting block is bonded to the inner wall of the mounting groove.

[0008] Preferably, the limiting block is recessed toward one side of the ladder beam to form an arc-shaped groove.

[0009] Preferably, the mounting frame is symmetrically provided with two through holes;

[0010] The installation groove is located between the two through holes, and a detachable connecting rod is installed between the two through holes. One end of the connecting rod is fixedly connected to the limiting plate, and the other end is screwed and connected to a detachable screw ring.

[0011] Preferably, a side frame is fixedly connected to the mounting frame at a side away from the mounting groove;

[0012] The side frame is provided with a connecting groove, and the connecting groove is sleeved with a connecting belt.

[0013] Preferably, a first Velcro is bonded to one side of the connecting belt, and a second Velcro is fixedly connected to a side of the mounting frame away from the spring.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) The utility model provides a connecting piece, and a groove on one side of the connecting piece engages with the ladder beam, and the connecting piece supports the spring. When a person folds the folding ladder, the ladder beam compresses the spring, and the spring generates a reverse force to resist the ladder beam, so that there is a gap between the ladder beams, thereby preventing the folding ladder from pinching the hands. The device can be used for folding ladders of different specifications, thereby improving the use range of the device.

[0016] (2) Based on the above beneficial effects, the utility model uses the mounting groove to engage the mounting frame with the ladder beam, passes the connecting rod through the two through holes, and screws the screw ring to the connecting rod, and cooperates with the limit plate to make the device more tightly connected to the ladder beam, thereby improving the stability of the device after use.

[0017] (3) On the basis of the above-mentioned beneficial effects, the utility model fixes the folding ladder by pulling the connecting belt through the ladder beam, and then connecting the connecting belt passing through the ladder beam to the second Velcro on the mounting frame through the first Velcro, so that the folding ladder is more stable after being folded, avoiding a large unfolding angle when the device is folded, reducing the difficulty of storage and improving the storage efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is one of the three-dimensional diagrams of the utility model;

[0019] Figure 2 This is the second stereogram of the utility model;

[0020] Figure 3 This is the third stereogram of the utility model;

[0021] Figure 4 This is the fourth stereogram of the utility model;

[0022] In the figure: 1. mounting frame; 2. mounting groove; 3. arc groove; 4. limit block; 5. through hole; 6. connecting rod; 7. limit plate; 8. spring; 9. base plate; 10. side frame; 11. connecting groove; 12. connecting belt; 13. first Velcro; 14. screw ring; 15. second Velcro. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-Figure 4 As shown, the utility model provides the following technical solutions:

[0025] A finger-pinch prevention structure for a ladder comprises a connector for connecting a ladder beam, wherein one side of the connector is recessed toward the ladder beam to form a groove matching the ladder beam, and a spring 8 which is normally expanded is fixedly connected to one side of the connector adjacent to the groove.

[0026] Through the above technical solution, before a person needs to use the folding ladder, the connecting piece is engaged with the ladder beam of the folding ladder through the groove, so that the connecting piece is installed on the ladder beam, and the connecting piece is supported by the ladder beam, and the spring 8 is supported by the connecting piece. When the person needs to fold the folding ladder after using the folding ladder, the ladder beam will compress the spring 8, and then the spring 8 will generate a reverse force, so that the spring 8 will resist the ladder beam, and there will be a gap between the two ladder beams, so as to avoid pinching the fingers of the person when folding the folding ladder.

[0027] In order to make the spring 8 more stable when pushing the ladder beam, Figure 1-Figure 2 As shown, the free end of the spring 8 is fixedly connected to a base plate 9 .

[0028] In this embodiment, after the connecting piece is installed on the ladder beam, the connecting piece is supported by the ladder beam, and the spring 8 is supported by the connecting piece. When a person needs to fold the folding ladder after using it, the ladder beam will compress the spring 8, thereby causing the spring 8 to generate a reverse force, causing the spring 8 to push the base plate 9, which contacts the ladder beam through the base plate 9, so that a gap is created between the two ladder beams to prevent people from pinching their fingers when folding the folding ladder.

[0029] Specifically, in one embodiment, regarding the above-mentioned connecting member:

[0030] like Figure 1-Figure 4As shown, the connecting member includes a mounting frame 1, one side of the mounting frame 1 is recessed to form a mounting groove 2, and a limiting block 4 is bonded to the inner wall of the mounting groove 2;

[0031] The limiting block 4 is sunken toward one side of the ladder beam to form an arc-shaped groove 3 .

[0032] In this embodiment, when personnel need to install the device, the mounting frame 1 is engaged with the ladder beam of the folding ladder through the mounting groove 2, so that the mounting frame 1 is installed on the ladder beam, and the mounting frame 1 is made more stable after installation through the limit block 4, the mounting frame 1 is supported by the ladder beam, and the spring 8 is supported by the mounting frame 1, and after the mounting frame 1 is installed, the mounting frame 1 is made more secure after installation through the arc groove 3. When the personnel need to fold the folding ladder after using it, the ladder beam will compress the spring 8, and then the spring 8 will generate a reverse force, so that the spring 8 will resist the ladder beam, and there will be a gap between the two ladder beams, so as to avoid the personnel from pinching the fingers when folding the folding ladder.

[0033] When the mounting frame 1 is installed on the ladder beam, in order to make the mounting frame 1 more secure, Figure 1-Figure 4 As shown, the mounting frame 1 is symmetrically provided with two through holes 5;

[0034] The mounting groove 2 is located between the two through holes 5 , and a detachable connecting rod 6 is installed between the two through holes 5 , one end of the connecting rod 6 is fixedly connected to the limiting plate 7 , and the other end is screwed and connected to a detachable screw ring 14 .

[0035] In this embodiment, after the mounting frame 1 is installed on the ladder beam, one end of the connecting rod 6 is inserted from the through hole 5 on the mounting frame 1, and then passes through the mounting groove 2 and out from the other through hole 5, and the screw ring 14 is screwed and connected with the connecting rod 6, and the screw ring 14 contacts the mounting frame 1, and the limiting plate 7 cooperates to fix the mounting frame 1 on the ladder beam. After the mounting frame 1 is fixed, the spring 8 is supported by the mounting frame 1, and after the mounting frame 1 is installed, the mounting frame 1 is installed more firmly through the arc groove 3. When a person needs to fold the folding ladder after using it, the ladder beam will compress the spring 8, and then the spring 8 will generate a reverse force, so that the spring 8 contacts the ladder beam, and a gap is left between the two ladder beams to prevent people from pinching their fingers when folding the folding ladder.

[0036] In addition, in the present invention, when a person needs to fold the ladder, in order to make the ladder more secure after folding, Figure 1-Figure 4 As shown, a side frame 10 is fixedly connected to the side of the mounting frame 1 away from the mounting groove 2;

[0037] A connecting groove 11 is formed on the side frame 10 , and a connecting belt 12 is sleeved on the connecting groove 11 .

[0038] After the folding ladder is folded, the spring 8 is supported by the mounting bracket 1, and the spring 8 is supported by the mounting bracket 1, and the arc groove 3 is used to make the mounting bracket 1 more secure. When the personnel need to fold the folding ladder after using it, the ladder beam will compress the spring 8, and then the spring 8 will produce a reverse force, so that the spring 8 will resist the ladder beam, so that there is a gap between the two ladder beams to prevent the personnel from pinching the personnel's fingers when folding the folding ladder. When the personnel need to completely fold the folding ladder, the connecting belt 12 is pulled to pass the connecting belt 12 through another ladder beam, and then the connecting belt 12 is pulled around the ladder beam and tied with the other ladder beam, so that the folding ladder is fixed and the folding ladder is completed.

[0039] Furthermore, in the present invention, in order to further improve the stability of the ladder after folding, Figure 1 and Figure 3 As shown, a first Velcro 13 is bonded to one side of the connecting belt 12 , and a second Velcro 15 is fixedly connected to the side of the mounting frame 1 away from the spring 8 .

[0040] In this embodiment, when a person needs to completely fold the folding ladder, he pulls the connecting belt 12 to make the connecting belt 12 pass through another ladder beam, then pulls the connecting belt 12 around the ladder beam, and adheres the connecting belt 12 to the second Velcro 15 on the mounting frame 1 through the first Velcro 13, thereby fixing the folding ladder and completing the folding of the folding ladder.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A finger-pinch prevention structure for a ladder, characterized in that: It comprises a connecting piece for connecting a ladder beam, wherein one side of the connecting piece is recessed toward the ladder beam to form a groove matching the ladder beam, and a spring (8) which is normally expanded is fixedly connected to one side of the connecting piece adjacent to the groove.

2. The anti-pinch finger structure for ladder according to claim 1, characterized in that: The free end of the spring (8) is fixedly connected to a base plate (9).

3. The anti-pinch finger structure for ladder according to claim 2, characterized in that: The connecting member comprises a mounting frame (1), one side of the mounting frame (1) is recessed to form a mounting groove (2), and a limiting block (4) is bonded to the inner wall of the mounting groove (2).

4. The anti-pinch finger structure for ladder according to claim 3, characterized in that: The limiting block (4) is recessed toward one side of the ladder beam to form an arc-shaped groove (3).

5. The finger-pinch prevention structure for a ladder according to claim 3, characterized in that: The mounting frame (1) is symmetrically provided with two through holes (5); The installation groove (2) is located between the two through holes (5), and a detachable connecting rod (6) is installed between the two through holes (5), one end of the connecting rod (6) is fixedly connected to the limiting plate (7), and the other end is screwed and connected to a detachable screw ring (14).

6. The finger-pinch prevention structure for a ladder according to claim 3, characterized in that: A side frame (10) is fixedly connected to a side of the mounting frame (1) away from the mounting groove (2); The side frame (10) is provided with a connection groove (11), and a connection belt (12) is sleeved on the connection groove (11).

7. The finger-pinch prevention structure for a ladder according to claim 6, characterized in that: A first Velcro (13) is bonded to one side of the connection belt (12), and a second Velcro (15) is fixedly connected to the side of the mounting frame (1) away from the spring (8).

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