Anti-sideslip straight ladder

Abstract

The invention discloses an anti-sideslip straight ladder, and relates to the field of straight ladders. The anti-sideslip straight ladder comprises a straight ladder body, a plurality of limiting units and a plurality of adjusting units, the bottom end face of the straight ladder body is rotationally connected with a base, and the limiting units are arranged on the top end face of the straight ladder body. According to the anti-sideslip straight ladder, a second rotating seat and a moving seat rotate along the peripheral wall of a threaded rod, so that a rotating unit and a transmission unit are located at a proper angle, the moving seat is adjusted to slide along the peripheral wall of the threaded rod, at the moment, a connecting rod drives a rotating rod to rotate, and supporting is conducted through the rotating rod and the connecting rod; the stability of the straight ladder is guaranteed, the situation that the straight ladder shakes when a user carries out maintenance work is avoided, by rotating the lead screw, the connecting rod drives the contact frame to move till the contact frame makes contact with the ground, at the moment, under the action of the contact frame, sideslip of the straight ladder is limited, the stability of the straight ladder is guaranteed, and the safety of the user is improved.

Description

Technical Field

[0001] The invention relates to the technical field of vertical ladders, in particular to an anti-sideslip vertical ladder. Background Art

[0002] A vertical ladder is an everyday tool that consists of two long, thick poles as sides with a horizontal bar suitable for climbing in the middle. It is used for climbing and is suitable for tasks such as roofing, construction, and exterior maintenance.

[0003] When performing electrical work at height, it is often necessary to use a ladder. By placing one end of the ladder on the wall and the other end in contact with the ground to ensure the stability of the ladder, you can climb the ladder to the specified height to perform external maintenance work.

[0004] When building a straight ladder, the ladder is stabilized only by contacting the ladder with the ground and the wall, through the friction of the ladder and the stability principle of its triangle. However, when maintenance work needs to be performed on the ladder, the user will move involuntarily due to the maintenance work. When moving, the ladder will sway left and right, affecting work efficiency. At the same time, when the sway is large or the friction is insufficient, working on the ladder will cause side slipping, making the work safety poor. Therefore, we propose an anti-side slip ladder. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the shortcomings of the prior art, the present invention provides an anti-skid vertical ladder, which solves the problem that the vertical ladder sways left and right when maintenance work is performed on the vertical ladder, affecting work efficiency. At the same time, when the shaking is large or the friction is insufficient, it will cause skidding when working on the vertical ladder, resulting in poor safety during work.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: an anti-sideslip vertical ladder, comprising a vertical ladder, a plurality of limiting units and a plurality of adjusting units, wherein the bottom end surface of the vertical ladder is rotatably connected to a base, and the plurality of limiting units are arranged on the top end surface of the vertical ladder,

[0009] The limiting unit comprises a rotating frame rotatably connected to the outer peripheral wall of the straight ladder, a sliding rod is slidably connected to the inner wall of the rotating frame, and a contact seat is fixedly connected to the top end surface of the sliding rod;

[0010] The adjusting unit is arranged on both sides of the ladder, and the adjusting unit comprises a threaded rod fixedly connected to the outer wall of the ladder, and a second rotating seat and a moving seat are rotatably connected to the outer wall of the threaded rod;

[0011] The outer wall of the adjustment unit is provided with a rotating unit, the rotating unit comprises a rotating rod rotatably connected to the second rotating seat, the other end of the rotating rod is rotatably connected to a plurality of connecting rods, and the bottom end surfaces of the plurality of connecting rods are fixedly connected to a contact frame;

[0012] A transmission unit is connected between the adjustment unit and the rotation unit. The transmission unit includes a fixing rod fixedly connected to the moving seat. A ball nut seat is slidably connected to the inner wall of the fixing rod. Both sides of the ball nut seat are rotationally connected to the connecting rod.

[0013] Preferably, a plurality of first rotating seats are fixedly connected to the outer wall of the rotating frame, and the first rotating seats are rotatably connected to the ladder.

[0014] Preferably, a plurality of springs are fixedly connected to the inner wall of the rotating frame, and the springs are sleeved on the outer peripheral wall of the sliding rod.

[0015] Preferably, one end of the sliding rod away from the contact seat is fixedly connected to a first connecting seat, and a top end surface of the first connecting seat is fixedly connected to one end of the spring away from the rotating frame.

[0016] Preferably, a plurality of fixing seats are fixedly connected to the outer wall of the straight ladder, and the plurality of fixing seats are fixedly connected to the two ends of the threaded rod respectively.

[0017] Preferably, a nut seat is threadedly connected to the outer peripheral wall of the threaded rod, and the nut seat is fitted with both ends of the movable seat.

[0018] Preferably, one of the fixed seats is rotatably connected to the second rotating seat, a second connecting seat is fixedly connected to the outer wall of the second rotating seat, and the second connecting seat is rotatably connected to one end of the rotating rod.

[0019] Preferably, a screw rod is rotatably connected to the inner wall of the fixing rod, and one end of the screw rod is fixedly connected to a handle.

[0020] Preferably, the outer peripheral wall of the screw rod is threadedly connected to the ball nut seat.

[0021] The present invention discloses an anti-sideslip vertical ladder, which has the following beneficial effects:

[0022] 1. The anti-skid ladder rotates the ladder so that the contact seat on the top end surface of the ladder fits against the top of the wall. When the contact seat is in contact with and squeezed by the wall, the contact seat drives the sliding rod to slide along the inner wall of the rotating frame and compresses the spring. At the same time, when the contact seat fits against the wall, the contact seat, the rotating frame and the first rotating seat are driven to rotate along the ladder. At this time, the ladder is stabilized under the action of the contact seat to prevent the ladder from shaking when the user is performing maintenance work.

[0023] 2. The anti-skid ladder is rotated along the outer wall of the threaded rod by the second rotating seat and the moving seat, so that the rotating unit and the transmission unit are at a suitable angle, and the moving seat is adjusted to slide along the outer wall of the threaded rod. At this time, the connecting rod drives the rotating rod to rotate, and the rotating rod and the connecting rod are supported to ensure the stability of the ladder, thereby preventing the ladder from shaking when the user is performing maintenance work.

[0024] 3. The anti-skid ladder rotates the screw rod to make the ball nut seat slide along the inner wall of the fixed rod, driving the connecting rod to rotate along the rotating rod, so that the connecting rod drives the contact frame to move until the contact frame contacts the ground. At this time, under the action of the contact frame, the side slip of the ladder is limited, the stability of the ladder is ensured, and the safety of the user is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a schematic diagram of the structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the unit structure defined in the present invention;

[0028] Figure 3 It is a schematic diagram of the connection between the adjustment unit and the rotation unit of the present invention;

[0029] Figure 4 It is a schematic diagram of the connection between the transmission unit, the adjustment unit and the rotation unit of the present invention;

[0030] Figure 5 It is a schematic diagram of the connection between the rotating unit and the transmission unit of the present invention;

[0031] Figure 6 It is a schematic diagram of the transmission unit structure of the present invention.

[0032] In the figure: 1. straight ladder; 2. base; 3. limiting unit; 301. rotating frame; 302. first rotating seat; 303. contact seat; 304. sliding rod; 305. first connecting seat; 306. spring; 4. adjusting unit; 401. threaded rod; 402. fixed seat; 403. second rotating seat; 404. moving seat; 5. rotating unit; 501. rotating rod; 502. second connecting seat; 503. connecting rod; 504. contact frame; 6. transmission unit; 601. fixed rod; 602. screw rod; 603. ball nut seat. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] The embodiment of the present application provides an anti-skid ladder, which solves the problem that the ladder 1 shakes left and right when maintenance work is performed on the ladder 1, affecting work efficiency. At the same time, when the shaking is large or the friction force is insufficient, side sliding may occur when working on the ladder 1, resulting in poor safety during work. The second rotating seat 403 and the moving seat 404 are rotated along the outer peripheral wall of the threaded rod 401, so that the rotating unit 5 and the transmission unit 6 are at a suitable angle, and the moving seat 404 is adjusted to slide along the outer peripheral wall of the threaded rod 401. At this time, the connecting rod 503 drives the rotating rod 501 to rotate, and the rotating rod 501 and the connecting rod 503 are supported to ensure the stability of the ladder 1, thereby preventing the ladder 1 from shaking when the user performs maintenance work.

[0035] By rotating the screw rod 602, the ball nut seat 603 slides along the inner wall of the fixed rod 601, driving the connecting rod 503 to rotate along the rotating rod 501, so that the connecting rod 503 drives the contact frame 504 to move until the contact frame 504 contacts the ground. At this time, under the action of the contact frame 504, the side sliding of the vertical ladder 1 is limited, the stability of the vertical ladder 1 is ensured, and the safety of the user is improved.

[0036] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0037] The embodiment of the invention discloses an anti-side-slip vertical ladder.

[0038] According to the attached Figure 1-6 As shown, it includes a straight ladder 1, a plurality of limiting units 3 and a plurality of adjusting units 4. The bottom end surface of the straight ladder 1 is rotatably connected to a base 2. By making the base 2 fit the ground, the straight ladder 1 is rotated along the base 2 so that the top of the straight ladder 1 fits the wall. The plurality of limiting units 3 are arranged on the top end surface of the straight ladder 1.

[0039] The limiting unit 3 includes a rotating frame 301 rotatably connected to the outer peripheral wall of the vertical ladder 1, a sliding rod 304 is slidably connected to the inner wall of the rotating frame 301, and a contact seat 303 is fixedly connected to the top end face of the sliding rod 304. By rotating the vertical ladder 1, the contact seat 303 on the top end face of the vertical ladder 1 is fitted with the top of the wall. Under the contact and compression between the contact seat 303 and the wall, the contact seat 303 drives the sliding rod 304 to slide along the inner wall of the rotating frame 301 and compresses the spring 306. At the same time, under the fit between the contact seat 303 and the wall, the contact seat 303, the rotating frame 301 and the first rotating seat 302 are driven to rotate along the vertical ladder 1. At this time, under the action of the contact seat 303, the vertical ladder 1 is stabilized to prevent the vertical ladder 1 from shaking when the user is performing maintenance work;

[0040] The adjusting unit 4 is arranged on both sides of the ladder 1. The adjusting unit 4 includes a threaded rod 401 fixedly connected to the outer wall of the ladder 1. The outer wall of the threaded rod 401 is rotatably connected with a second rotating seat 403 and a moving seat 404. The second rotating seat 403 and the moving seat 404 rotate along the outer peripheral wall of the threaded rod 401. Under the rotation of the second rotating seat 403 and the moving seat 404, the rotating unit 5 and the transmission unit 6 rotate, so that the rotating unit 5 and the transmission unit 6 are at a suitable angle.

[0041] The outer wall of the adjustment unit 4 is provided with a rotating unit 5, and the rotating unit 5 includes a rotating rod 501 rotatably connected to the second rotating seat 403, and the other end of the rotating rod 501 is rotatably connected to multiple connecting rods 503, and the bottom end surfaces of the multiple connecting rods 503 are fixedly connected to a contact frame 504, which slides along the outer peripheral wall of the threaded rod 401 through the moving seat 404, and the contact frame 504 is driven to move under the movement of the moving seat 404, and the connecting rod 503 is driven to move under the movement of the contact frame 504. At this time, the connecting rod 503 drives the rotating rod 501 to rotate, and the rotating rod 501 and the connecting rod 503 are supported to ensure the stability of the vertical ladder 1, so as to prevent the vertical ladder 1 from shaking when the user is performing maintenance work;

[0042] A transmission unit 6 is connected between the adjustment unit 4 and the rotation unit 5. The transmission unit 6 includes a fixed rod 601 fixedly connected to the moving seat 404. A ball nut seat 603 is slidably connected to the inner wall of the fixed rod 601. Both sides of the ball nut seat 603 are rotatably connected to the connecting rod 503. By rotating the screw rod 602, the ball nut seat 603 slides along the inner wall of the fixed rod 601. Under the movement of the ball nut seat 603, the connecting rod 503 rotates along the rotating rod 501, so that the connecting rod 503 drives the contact frame 504 to move until the contact frame 504 contacts the ground. At this time, under the action of the contact frame 504, the side slip of the vertical ladder 1 is limited, the stability of the vertical ladder 1 is ensured, and the safety of the user is improved.

[0043] A plurality of first rotating seats 302 are fixedly connected to the outer wall of the rotating frame 301, and the first rotating seats 302 are rotatably connected to the straight ladder 1. By making the base 2 fit against the ground, the straight ladder 1 is rotated along the base 2 so that the top of the straight ladder 1 fits against the wall, and the rotating frame 301 is driven to rotate along the straight ladder 1 through the first rotating seats 302.

[0044] A plurality of springs 306 are fixedly connected to the inner wall of the rotating frame 301, and the springs 306 are sleeved on the outer wall of the sliding rod 304. When the rotating frame 301 rotates, the rotating frame 301 drives the sliding rod 304 to rotate. At this time, the sliding rod 304 causes the contact seat 303 to rotate, so that the contact seat 303 fits against the wall top.

[0045] The end of the sliding rod 304 away from the contact seat 303 is fixedly connected to the first connecting seat 305, and the top end surface of the first connecting seat 305 is fixedly connected to the end of the spring 306 away from the rotating frame 301. When the contact seat 303 contacts and squeezes the wall, the contact seat 303 drives the sliding rod 304 to slide along the inner wall of the rotating frame 301, so that the first connecting seat 305 moves with the sliding rod 304, so that the first connecting seat 305 compresses the spring 306. At this time, under the action of the contact seat 303, the vertical ladder 1 is stabilized.

[0046] A plurality of fixing seats 402 are fixedly connected to the outer wall of the vertical ladder 1 , and the plurality of fixing seats 402 are fixedly connected to two ends of the threaded rod 401 , respectively.

[0047] A nut seat is threadedly connected to the outer wall of the threaded rod 401, and the nut seat fits with both ends of the movable seat 404. By rotating the nut seat, the nut seat and the movable seat 404 are separated, and the movable seat 404 slides along the threaded rod 401. At this time, the movable seat 404 is not fixed and can be rotated along the threaded rod 401 through the movable seat 404.

[0048] One of the fixed seats 402 is rotatably connected to the second rotating seat 403, and a second connecting seat 502 is fixedly connected to the outer wall of the second rotating seat 403. The second connecting seat 502 is rotatably connected to one end of the rotating rod 501. Under the rotation of the second rotating seat 403 and the movable seat 404, the second rotating seat 403 drives the second connecting seat 502 to rotate. Under the rotation of the second connecting seat 502, the rotating rod 501 is driven to rotate. At this time, the rotating rod 501 drives the connecting rod 503 at the other end to rotate, so that the rotating rod 501 and the connecting rod 503 are at a suitable angle, which is convenient for supporting the vertical ladder 1;

[0049] When the rotating rod 501 and the connecting rod 503 are rotated to a suitable angle, the movable seat 404 is limited by rotating the nut seat. At this time, the position of the movable seat 404 and the transmission unit 6 is limited, and then the position of the connecting rod 503 and the rotating rod 501 is limited, and then the rotating rod 501 and the connecting rod 503 are fixed, and the vertical ladder 1 is supported by the rotating rod 501 and the connecting rod 503.

[0050] A screw rod 602 is rotatably connected to the inner wall of the fixed rod 601 , and a handle is fixedly connected to one end of the screw rod 602 . The screw rod 602 is rotated by rotating the handle.

[0051] The outer wall of the screw rod 602 is threadedly connected to the ball nut seat 603. When the screw rod 602 rotates, the ball nut seat 603 rotates along the outer wall of the screw rod 602. When the ball nut seat 603 moves, the ball nut seat 603 drives the connecting rod 503 to rotate. Since the connecting rod 503 rotates along the rotating rod 501, the connecting rod 503 and the contact frame 504 are driven to rotate and contact the ground. At this time, under the action of the contact frame 504, the vertical ladder 1 is restricted, thereby preventing the vertical ladder 1 from sliding sideways.

[0052] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An anti-sideslip vertical ladder, characterized in that: The invention comprises a straight ladder (1), a plurality of limiting units (3) and a plurality of adjusting units (4), wherein the bottom end surface of the straight ladder (1) is rotatably connected to a base (2), and the plurality of limiting units (3) are arranged on the top end surface of the straight ladder (1). The limiting unit (3) comprises a rotating frame (301) rotatably connected to the outer peripheral wall of the vertical ladder (1), a sliding rod (304) is slidably connected to the inner wall of the rotating frame (301), and a contact seat (303) is fixedly connected to the top end surface of the sliding rod (304); The adjusting unit (4) is arranged on both sides of the vertical ladder (1), and the adjusting unit (4) comprises a threaded rod (401) fixedly connected to the outer wall of the vertical ladder (1), and a second rotating seat (403) and a movable seat (404) are rotatably connected to the outer wall of the threaded rod (401); The outer wall of the adjustment unit (4) is provided with a rotating unit (5), the rotating unit (5) comprising a rotating rod (501) rotatably connected to the second rotating seat (403), the other end of the rotating rod (501) being rotatably connected to a plurality of connecting rods (503), the bottom end surfaces of the plurality of connecting rods (503) being fixedly connected to a contact frame (504); A transmission unit (6) is connected between the adjustment unit (4) and the rotation unit (5), and the transmission unit (6) comprises a fixed rod (601) fixedly connected to the movable seat (404), a ball nut seat (603) is slidably connected to the inner wall of the fixed rod (601), and two sides of the ball nut seat (603) are rotationally connected to the connecting rod (503).

2. The anti-sideslip vertical ladder according to claim 1, characterized in that: A plurality of first rotating seats (302) are fixedly connected to the outer wall of the rotating frame (301), and the first rotating seats (302) are rotatably connected to the vertical ladder (1).

3. The anti-sideslip vertical ladder according to claim 2, characterized in that: A plurality of springs (306) are fixedly connected to the inner wall of the rotating frame (301), and the springs (306) are sleeved on the outer peripheral wall of the sliding rod (304).

4. The anti-sideslip vertical ladder according to claim 3, characterized in that: One end of the sliding rod (304) away from the contact seat (303) is fixedly connected to a first connecting seat (305), and the top end surface of the first connecting seat (305) is fixedly connected to one end of the spring (306) away from the rotating frame (301).

5. The anti-sideslip vertical ladder according to claim 4, characterized in that: A plurality of fixing seats (402) are fixedly connected to the outer wall of the straight ladder (1), and the plurality of fixing seats (402) are respectively fixedly connected to two ends of the threaded rod (401).

6. The anti-sideslip vertical ladder according to claim 5, characterized in that: A nut seat is threadedly connected to the outer peripheral wall of the threaded rod (401), and the nut seat fits with both ends of the movable seat (404).

7. The anti-sideslip vertical ladder according to claim 6, characterized in that: One of the fixed seats (402) is rotatably connected to the second rotating seat (403), a second connecting seat (502) is fixedly connected to the outer wall of the second rotating seat (403), and the second connecting seat (502) is rotatably connected to one end of the rotating rod (501).

8. The anti-sideslip vertical ladder according to claim 1, characterized in that: A screw rod (602) is rotatably connected to the inner wall of the fixing rod (601), and one end of the screw rod (602) is fixedly connected to a handle.

9. The anti-sideslip vertical ladder according to claim 8, characterized in that: The outer peripheral wall of the screw rod (602) is threadedly connected to the ball nut seat (603).

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