A multi-section straight ladder capable of being spliced

Abstract

The utility model discloses a splicable multi-section ladder, which relates to the technical field of ladders, and includes several single-section ladders, wherein the single-section ladder includes a telescopic cross frame, and the left and right ends of the telescopic cross frame are fixedly connected with lifting side frames, and the bottom end of the lifting side frame is provided with a plug-in slot, and the front and rear sides of the inner surface of the plug-in slot are provided with fixed card slots, and the top of the lifting side frame is fixedly connected with a connecting platform, and the top of the connecting platform is fixedly connected with a plug-in column. The utility model inserts the plug-in column into the plug-in slot, and drives the external thread sliding ring to slide through the internal thread rotating ring, so that the L-shaped slide plate can push the U-shaped card plate into the fixed card slot through the push rod, and the single-section ladder can be connected and fixed. By adopting a method of splicing several single-section ladders, the height of the ladder can be freely adjusted, and by splitting into several single-section ladders, the transportation of the ladder is more convenient, which facilitates the use of the ladder.

Description

Technical Field

[0001] The utility model relates to the technical field of vertical ladders, in particular to a vertical ladder that can be spliced ​​with multiple sections. Background Art

[0002] In traditional power construction, straight ladders are often used to climb cylindrical poles and perform construction work on them. They are common daily necessities. Straight ladders usually consist of two long and thick poles as sides, with a horizontal bar suitable for climbing running across the middle to facilitate climbing.

[0003] The existing technology has the following problems:

[0004] When the existing straight ladder is in use, the length of the straight ladder required is different for different scenes. The length of the existing straight ladder is fixed and the length of the straight ladder cannot be adjusted according to different scenes. At the same time, the long straight ladder is also inconvenient to transport, which is not conducive to the use of the straight ladder. Utility Model Content

[0005] The utility model provides a multi-section vertical ladder that can be spliced ​​to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A connectable multi-section ladder comprises a plurality of single-section ladders, wherein the single-section ladder comprises a telescopic cross frame, the left and right ends of the telescopic cross frame are fixedly connected to lifting side frames, the bottom end of the lifting side frame is provided with a plug-in slot, the front and rear sides of the inner surface of the plug-in slot are provided with fixed card slots, the end of the fixed card slot away from the plug-in slot passes through to the outer surface of the lifting side frame, the top end of the lifting side frame is fixedly connected to a connecting platform, the top end of the connecting platform is fixedly connected to a plug-in column, and the outer surface of the connecting platform is movably connected to a fixing mechanism.

[0008] The fixing mechanism includes an internal threaded rotating ring, an annular sliding groove is provided on the outer surface of the connecting platform, the internal threaded rotating ring is rotatably connected to the outer side of the annular sliding groove, the inner surface of the internal threaded rotating ring is threadedly connected to the external threaded sliding ring, the external threaded sliding ring is slidably connected to the inside of the annular sliding groove, the inner surface of the annular sliding groove is provided with a sliding groove four that penetrates front and back, the inner surface of the external threaded sliding ring is fixedly connected with an L-shaped slide plate on both the front and back sides, the L-shaped slide plate is slidably connected to the inside of the sliding groove four, the inside of the plug-in column is provided with a sliding groove five that penetrates front and back, the top end of the L-shaped slide plate penetrates into the inside of the sliding groove five and is movably connected with a pushing rod, the push rod is movably connected with a U-shaped clamping plate at one end away from the L-shaped slide plate, and the two U-shaped clamping plates are slidably connected to the front and back sides of the sliding groove five respectively.

[0009] A further improvement of the technical solution of the utility model is that the telescopic horizontal frame includes a connecting plate, and the left and right ends of the outer surface of the telescopic horizontal frame are slidably connected with sliding sleeves, and the end of the sliding sleeve away from the connecting plate is fixedly connected to the outer surface of the lifting side frame.

[0010] A further improvement of the technical solution of the utility model is that: a knob 1 is movably connected to the bottom center of the connecting plate, a bevel gear 1 is fixedly connected to the top of the knob 1, a movable groove 1 is opened in the inner center of the connecting plate, the bevel gear 1 is movably connected inside the movable groove 1, and the outer surface of the bevel gear 1 is meshedly connected to bevel gear 2 on both sides.

[0011] A further improvement of the technical solution of the utility model lies in that: a first screw is fixedly connected to a side of the bevel gear 2 away from the bevel gear 1, a sliding groove 1 is opened on both the left and right sides of the interior of the connecting plate, an end of the first screw away from the bevel gear 2 penetrates into the interior of the sliding groove 1 and a T-shaped slide is threadedly connected to the outer surface, the T-shaped slide is slidably connected to the interior of the sliding groove 1, and an end of the T-shaped slide away from the first screw penetrates into the interior of the sliding sleeve and is fixedly connected to the inner wall of the sliding sleeve.

[0012] A further improvement of the technical solution of the utility model is that the lifting side frame includes a support column, and the two support columns are respectively fixedly connected to the left and right ends of the telescopic horizontal frame, and the outer surface of the support column is movably connected to the middle of a side away from the telescopic horizontal frame with a knob 2.

[0013] A further improvement of the technical solution of the utility model is that: a bevel gear three is fixedly connected to a side of the knob two close to the support column, a movable groove two is opened at the inner center of the support column, the bevel gear three is movably connected inside the movable groove two, and a bevel gear four is meshedly connected above the outer surface of the bevel gear three.

[0014] A further improvement of the technical solution of the utility model is that a second screw is fixedly connected to the top of the bevel gear four, a sliding groove two is opened at the top of the support column, the top of the second screw penetrates into the interior of the sliding groove two and a lifting slide column is threadedly connected to the outer surface, and the top of the lifting slide column is fixedly connected to the bottom end of the connecting platform.

[0015] A further improvement of the technical solution of the utility model is that: a sliding groove three is opened inside the lifting slide column, the top end of the second screw rod is fixedly connected to a limiting baffle, the limiting baffle is slidably connected to the inside of the sliding groove three, the bottom left and right sides of the limiting baffle are fixedly connected to limiting sliding rods, the bottom end of the limiting sliding rod passes through the interior of the sliding groove two and is fixedly connected to the bottom inner wall of the sliding groove two.

[0016] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0017] 1. The utility model provides a multi-section ladder that can be spliced. Through the mutual cooperation among the plug-in slot, the fixed card slot, the connecting platform, the plug-in column, the internal thread rotating ring, the external thread sliding ring, the L-shaped slide plate, the pushing rod, and the U-shaped card plate, the plug-in column is inserted into the plug-in slot, and the external thread sliding ring is driven to slide by the internal thread rotating ring, so that the L-shaped slide plate can push the U-shaped card plate into the fixed card slot through the pushing rod, so that a single-section ladder can be connected and fixed. By adopting a method of splicing several single-section ladders, the height of the ladder can be freely adjusted, and by being split into several single-section ladders, the transportation of the ladder is more convenient, and the use of the ladder is convenient.

[0018] 2. The utility model provides a multi-section straight ladder that can be spliced. Through the cooperation among a connecting plate, a sliding sleeve, a knob 1, a bevel gear 1, a bevel gear 2, a first screw, a T-shaped slide plate, a support column, a knob 2, a bevel gear 3, a bevel gear 4, a second screw, a lifting slide column, a limit baffle plate, and a limit slide rod, when the straight ladder is used, by rotating the knob 1, the sliding sleeve can be controlled to slide along the connecting plate, so that the length of the telescopic horizontal frame can be adjusted, and by rotating the knob 2, the lifting slide column can slide on the top of the support column, and the length of the lifting side frame can be adjusted, which is convenient for adjusting the size of the multi-section straight ladder, can adapt to more different scenes, and improves the practicality of the straight ladder. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of a single-stage straight ladder of the utility model;

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the telescopic horizontal frame of the utility model;

[0022] Figure 4 It is a schematic diagram of the cross-sectional structure of the lifting side frame of the utility model;

[0023] Figure 5 It is a schematic cross-sectional structure diagram of the fixing mechanism of the utility model.

[0024] In the figure: 1, single-section straight ladder; 11, telescopic cross frame; 111, connecting plate; 112, sliding sleeve; 113, knob one; 114, bevel gear one; 115, bevel gear two; 116, first screw; 117, T-type slide plate; 12, lifting side frame; 121, support column; 122, knob two; 123, bevel gear three; 124, bevel gear four; 125, second screw; 126, lifting slide column; 127, limit baffle; 128, limit slide rod; 13, plug-in slot; 14, fixed card slot; 15, connecting platform; 16, plug-in column; 17, fixing mechanism; 171, internal thread rotating ring; 172, external thread sliding ring; 173, L-type slide plate; 174, push rod; 175, U-type card plate. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods:

[0026] like Figure 1-2 As shown, the utility model provides a multi-section ladder that can be spliced, including a plurality of single-section ladders 1, the single-section ladder 1 includes a telescopic horizontal frame 11, the left and right ends of the telescopic horizontal frame 11 are fixedly connected to lifting side frames 12, the bottom end of the lifting side frame 12 is provided with a plug-in slot 13, the front and rear sides of the inner surface of the plug-in slot 13 are provided with fixed card slots 14, the end of the fixed card slot 14 away from the plug-in slot 13 is connected to the outer surface of the lifting side frame 12, the top of the lifting side frame 12 is fixedly connected to a connecting platform 15, the top of the connecting platform 15 is fixedly connected to a plug-in column 16, and the outer surface of the connecting platform 15 is movably connected to a fixing mechanism 17;

[0027] When the ladder is in use, the plug-in column 16 is inserted into the plug-in slot 13. The connection between the single-section ladders 1 can be fixed by the cooperation of the fixing mechanism 17 and the fixing slot 14. By splicing several single-section ladders 1, the height of the ladder can be freely adjusted. At the same time, by adjusting the length of the telescopic cross frame 11 and the lifting side frame 12, the size of the ladder can be freely adjusted. By splitting it into several single-section ladders 1, the transportation of the ladder is more convenient, which facilitates the use of the ladder.

[0028] like Figure 3As shown, the utility model provides a multi-section vertical ladder that can be spliced. The telescopic horizontal frame 11 includes a connecting plate 111. The left and right ends of the outer surface of the telescopic horizontal frame 11 are slidably connected with sliding sleeve plates 112. The end of the sliding sleeve plate 112 away from the connecting plate 111 is fixedly connected to the outer surface of the lifting side frame 12. The bottom center of the connecting plate 111 is movably connected with a knob 113. The top of the knob 113 is fixedly connected with a bevel gear 114. The inner center of the connecting plate 111 is provided with a movable groove 1. The bevel gear 114 is movably connected to the inside of the movable groove 1. The bevel gear 114 The left and right sides of the outer surface are meshed with bevel gear 2 115, and the side of bevel gear 2 115 away from bevel gear 1 14 is fixedly connected with a first screw rod 116. The left and right sides of the interior of the connecting plate 111 are provided with sliding groove 1, and one end of the first screw rod 116 away from bevel gear 2 115 penetrates into the interior of the sliding groove 1 and the outer surface is threadedly connected with a T-shaped slide plate 117, which is slidably connected to the interior of the sliding groove 1, and one end of the T-shaped slide plate 117 away from the first screw rod 116 penetrates into the interior of the sliding sleeve plate 112 and is fixedly connected to the inner wall of the sliding sleeve plate 112;

[0029] When adjusting the length of the telescopic cross frame 11, by rotating the knob 113, the bevel gear 114 can drive the bevel gear 115 to rotate, and can also drive the first screw 116 to rotate, so that by cooperating with the thread of the T-shaped slide plate 117, the sliding sleeve 112 can be driven to slide along the connecting plate 111, thereby completing the adjustment of the length of the telescopic cross frame 11, and the sliding distance of the sliding sleeve 112 can be limited by the sliding of the T-shaped slide plate 117 in the sliding groove 1.

[0030] like Figure 4As shown, the utility model provides a multi-section vertical ladder that can be spliced. The lifting side frame 12 includes a support column 121. The two support columns 121 are fixedly connected to the left and right ends of the telescopic horizontal frame 11 respectively. The outer surface of the support column 121 is movably connected to a knob 2 122 in the middle of a side away from the telescopic horizontal frame 11. The knob 2 122 is fixedly connected to a bevel gear 3 123 on a side close to the support column 121. A movable groove 2 is opened in the inner center of the support column 121. The bevel gear 3 123 is movably connected to the inside of the movable groove 2. A bevel gear 4 124 is meshed and connected above the outer surface of the bevel gear 3 123. The top of the bevel gear 4 124 is fixedly connected to the first bevel gear 123. The second screw 125, the top of the support column 121 is provided with a sliding groove 2, the top of the second screw 125 penetrates into the interior of the sliding groove 2 and the outer surface is threadedly connected with a lifting slide 126, the top of the lifting slide 126 is fixedly connected to the bottom end of the connecting platform 15, and the interior of the lifting slide 126 is provided with a sliding groove 3, the top of the second screw 125 is fixedly connected to a limit baffle 127, the limit baffle 127 is slidably connected to the interior of the sliding groove 3, the bottom left and right sides of the limit baffle 127 are fixedly connected to the limit slide 128, the bottom end of the limit slide 128 penetrates into the interior of the sliding groove 2 and is fixedly connected to the inner wall of the bottom end of the sliding groove 2;

[0031] When the length of the lifting side frame 12 is adjusted, by rotating the knob 2 122, the bevel gear 4 124 can be driven to rotate through the bevel gear 3 123, and the second screw 125 can be driven to rotate, so that under the restriction of the limit slide 128, the lifting slide column 126 can be driven to slide along the limit slide 128 to complete the adjustment of the length of the lifting side frame 12, and the sliding distance of the lifting slide column 126 can be limited by the limit baffle 127.

[0032] like Figure 5 As shown, the utility model provides a multi-section straight ladder that can be spliced. The fixing mechanism 17 includes an internal thread rotating ring 171. An annular slide groove is provided on the outer surface of the connecting platform 15. The internal thread rotating ring 171 is rotatably connected to the outer side of the annular slide groove. The inner surface of the internal thread rotating ring 171 is threadedly connected to an external thread sliding ring 172. The external thread sliding ring 172 is slidably connected to the inside of the annular slide groove. The inner surface of the annular slide groove is provided with a sliding groove four that penetrates front and back. The inner surface of the external thread sliding ring 172 is fixedly connected with an L-shaped slide plate 173 on both the front and back sides of the inner surface. The L-shaped slide plate 173 is slidably connected to the inside of the sliding groove four. The inside of the plug-in column 16 is provided with a sliding groove five that penetrates front and back. The top end of the L-shaped slide plate 173 penetrates into the inside of the sliding groove five and is movably connected with a push rod 174. The end of the push rod 174 away from the L-shaped slide plate 173 is movably connected with a U-shaped clamping plate 175. The two U-shaped clamping plates 175 are slidably connected to the front and back sides of the sliding groove five respectively.

[0033] When connecting the single-section straight ladders 1, the plug-in column 16 is inserted into the plug-in groove 13, and by rotating the internal thread rotating ring 171, the external thread sliding ring 172 can be driven to slide inside the annular sliding groove under the restriction of the L-shaped slide plate 173, and the L-shaped slide plate 173 can slide inside the sliding groove four, so that the U-shaped card plate 175 can be pushed to slide by the push rod 174, so that the U-shaped card plate 175 can be stuck in the fixed card groove 14, completing the connection and fixation between the single-section straight ladders 1.

[0034] The following is a detailed description of the working principle of the connectable multi-section straight ladder.

[0035] like Figure 1-5 As shown, when the straight ladder is in use, the plug-in column 16 is inserted into the plug-in groove 13, and the external threaded sliding ring 172 can be driven to slide through the internal thread rotating ring 171, and the L-shaped slide plate 173 can drive the pushing rod 174 to push the U-shaped card plate 175 into the fixed card groove 14, so as to complete the connection and fixation between the single-section straight ladders 1. By adopting a method of splicing several single-section straight ladders 1, the height of the straight ladder can be freely adjusted, and the size of the straight ladder can be freely adjusted. At the same time, by rotating the knob 113, the sliding sleeve 112 can be controlled to slide along the connecting plate 111 to complete the adjustment of the length of the telescopic cross frame 11, and by rotating the knob 2 122, the lifting slide column 126 can be controlled to slide along the limiting slide rod 128 to complete the adjustment of the length of the lifting side frame 12, so as to realize the free adjustment of the size of the straight ladder, which is convenient for the use of the straight ladder.

[0036] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A multi-section ladder that can be spliced, characterized in that: The invention comprises a plurality of single-section ladders (1), wherein the single-section ladder (1) comprises a telescopic horizontal frame (11), the left and right ends of the telescopic horizontal frame (11) are fixedly connected to a lifting side frame (12), the bottom end of the lifting side frame (12) is provided with a plug-in slot (13), the front and rear sides of the inner surface of the plug-in slot (13) are provided with a fixed card slot (14), the end of the fixed card slot (14) away from the plug-in slot (13) is connected to the outer surface of the lifting side frame (12), the top end of the lifting side frame (12) is fixedly connected to a connecting platform (15), the top end of the connecting platform (15) is fixedly connected to a plug-in column (16), and the outer surface of the connecting platform (15) is movably connected to a fixing mechanism (17); The fixing mechanism (17) comprises an internal thread rotating ring (171), an annular sliding groove is provided on the outer surface of the connecting platform (15), the internal thread rotating ring (171) is rotatably connected to the outer side of the annular sliding groove, the inner surface of the internal thread rotating ring (171) is threadedly connected to an external thread sliding ring (172), the external thread sliding ring (172) is slidably connected to the inside of the annular sliding groove, the inner surface of the annular sliding groove is provided with a sliding groove four penetrating front and rear, and the inner surface of the external thread sliding ring (172) has two front and rear grooves. The sides are fixedly connected with an L-shaped slide plate (173), and the L-shaped slide plate (173) is slidably connected to the inside of the sliding groove four. The inside of the plug-in column (16) is provided with a sliding groove five that penetrates front and back. The top end of the L-shaped slide plate (173) penetrates into the inside of the sliding groove five and is movably connected with a push rod (174). The end of the push rod (174) away from the L-shaped slide plate (173) is movably connected with a U-shaped card plate (175). The two U-shaped card plates (175) are slidably connected to the front and rear sides of the sliding groove five respectively.

2. The multi-section ladder according to claim 1, characterized in that: The telescopic cross frame (11) comprises a connecting plate (111), and both left and right ends of the outer surface of the telescopic cross frame (11) are slidably connected with sliding sleeve plates (112), and one end of the sliding sleeve plate (112) away from the connecting plate (111) is fixedly connected to the outer surface of the lifting side frame (12).

3. The multi-section ladder according to claim 2, characterized in that: The bottom center of the connecting plate (111) is movably connected to a knob 1 (113), the top of the knob 1 (113) is fixedly connected to a bevel gear 1 (114), a movable groove 1 is provided at the inner center of the connecting plate (111), the bevel gear 1 (114) is movably connected inside the movable groove 1, and the outer surface of the bevel gear 1 (114) is meshedly connected to bevel gear 2 (115) on both left and right sides.

4. The multi-section ladder according to claim 3 is characterized in that: The side of the bevel gear 2 (115) away from the bevel gear 1 (114) is fixedly connected with a first screw rod (116); the left and right sides of the interior of the connecting plate (111) are both provided with a sliding groove 1; the end of the first screw rod (116) away from the bevel gear 2 (115) penetrates into the interior of the sliding groove 1 and the outer surface is threadedly connected with a T-shaped slide plate (117); the T-shaped slide plate (117) is slidably connected to the interior of the sliding groove 1; the end of the T-shaped slide plate (117) away from the first screw rod (116) penetrates into the interior of the sliding sleeve plate (112) and is fixedly connected to the inner wall of the sliding sleeve plate (112).

5. The multi-section vertical ladder according to claim 1, characterized in that: The lifting side frame (12) comprises a support column (121), wherein the two support columns (121) are respectively fixedly connected to the left and right ends of the telescopic horizontal frame (11), and a second knob (122) is movably connected to the middle of a side of the outer surface of the support column (121) away from the telescopic horizontal frame (11).

6. The multi-section ladder according to claim 5, characterized in that: The second knob (122) is fixedly connected to a bevel gear (123) on one side close to the support column (121); a movable groove (2) is provided at the inner center of the support column (121); the third bevel gear (123) is movably connected inside the movable groove (2); and a bevel gear (124) is meshedly connected above the outer surface of the third bevel gear (123).

7. The multi-section ladder according to claim 6, characterized in that: The top of the bevel gear four (124) is fixedly connected with a second screw rod (125), the top of the support column (121) is provided with a sliding groove two, the top of the second screw rod (125) penetrates into the interior of the sliding groove two and the outer surface is threadedly connected with a lifting slide column (126), and the top of the lifting slide column (126) is fixedly connected to the bottom end of the connecting platform (15).

8. The multi-section ladder according to claim 7, characterized in that: A sliding groove three is provided inside the lifting slide column (126); the top end of the second screw rod (125) is fixedly connected to a limit baffle (127); the limit baffle (127) is slidably connected inside the sliding groove three; the bottom left and right sides of the limit baffle (127) are fixedly connected to limit slide rods (128); the bottom end of the limit slide rod (128) passes through the inside of the sliding groove two and is fixedly connected to the bottom inner wall of the sliding groove two.

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