CN219638747U - Angle self-locking device of safe household ladder - Google Patents
Angle self-locking device of safe household ladder Download PDFInfo
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- CN219638747U CN219638747U CN202320849842.9U CN202320849842U CN219638747U CN 219638747 U CN219638747 U CN 219638747U CN 202320849842 U CN202320849842 U CN 202320849842U CN 219638747 U CN219638747 U CN 219638747U
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- locking mechanism
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- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000011152 fibreglass Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 210000005239 tubule Anatomy 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
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- Ladders (AREA)
Abstract
The utility model relates to the technical field of ladders, and discloses an angle self-locking device of a safe household ladder, which comprises a front ladder frame and a rear ladder frame, wherein a folding spring pedal is arranged between the front ladder frame and the rear ladder frame, the inner side of the lower end of the rear ladder frame is connected with a positioning rod, the surfaces of the two sides of the front ladder frame and the rear ladder frame are respectively provided with a fixing bolt, the lower end between the front ladder frame and the rear ladder frame is connected with a telescopic sleeve, the bottom of the telescopic sleeve is provided with a self-locking mechanism, the right side surface of the self-locking mechanism is connected with a push rod, the left end of the push rod is connected with the right end of an adjusting rod, the surface of the adjusting rod is provided with a first reset spring, the adjusting rod is connected with a U-shaped fixing plate, the U-shaped fixing plate is fixed on the top surface of a connecting bottom plate, and the front end of the bottom of the connecting bottom plate is connected with a hook. The angle self-locking device of the safe household ladder can freely adjust the angle of the ladder, thereby improving the use safety and practicality.
Description
Technical Field
The utility model relates to the technical field of ladders, in particular to an angle self-locking device of a safe household ladder.
Background
Household ladders are widely available in various households, and provide great convenience for accessing articles. The materials of the household ladder are mainly three types of stainless steel, aluminum alloy and glass fiber reinforced plastic, and the characteristics of the glass fiber reinforced plastic material, such as light weight, softness and the like are found to be popular through long-term use.
According to the search, chinese patent literature, bulletin number: CN214273473U discloses a household ladder, including left short ladder frame, stull, right short ladder frame, left long ladder frame, footboard end separation blade, footboard, right long ladder frame, the stull includes thick pipe portion, tubule portion and connects the dull and stereotyped structure of two parts, has the screw interlock region on the stull at the both ends of tubule portion. The pedal body adopts a conventional structure, through holes are formed in the positions, corresponding to pedal holes, of the side parts of the support leg support and the left long ladder frame of the inclined plate, the inclined plate and the left long ladder frame are fixed through fastener perforation, and the fasteners can be self-plugging rivets. The setting of fagging and footboard can prevent rotatory skidding to improve bearing capacity, improve the security.
But this domestic ladder can't fix the angle of ladder when using, leads to when the ladder angle is too little, can make the ladder atress open easily to lead to very dangerous when using, and use also inconvenient in some comparatively narrow places.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides the angle self-locking device of the safe household ladder, which can freely adjust the angle of the ladder, thereby improving the use safety and practicality and solving the technical problems.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a safe domestic ladder's angle self-locking device, includes preceding ladder frame and back ladder frame, be provided with folding spring footboard between preceding ladder frame and the back ladder frame, the lower extreme inboard of back ladder frame is connected with the locating lever, just preceding ladder frame and the both sides surface of back ladder frame are processed respectively and are had fixed bolt, the lower extreme between preceding ladder frame and the back ladder frame is connected with telescopic tube, self-locking mechanism is installed to telescopic tube's bottom.
The inside left end of self-locking mechanism is provided with the mounting, the outside surface of mounting is connected with the dead lever, just self-locking mechanism's inside bottom surface processing has the stopper of regular spread, self-locking mechanism's right side surface connection has the push rod, the left end of push rod links to each other with the right-hand member of adjusting the pole, the surface processing of adjusting the pole has first reset spring, just adjust the pole and be connected with U type fixed plate, U type fixed plate is fixed in the top surface of connecting the bottom plate, the bottom front end of connecting the bottom plate is connected with the couple, the bottom surface of connecting the bottom plate is connected with spacing frame, just the inboard bottom processing of spacing frame has the fixed block, the top of fixed block is connected with second reset spring.
As a preferable scheme of the utility model, screw holes are respectively formed at the left and right ends of the top surface of the connecting bottom plate, and the left and right ends of the U-shaped fixing plate are fixed on the top surface of the connecting bottom plate through the screw holes.
Through above-mentioned technical scheme, adopt the connection bottom plate to connect U type fixed plate, can make self-locking mechanism's inner structure more firm.
As a preferable scheme of the utility model, the hook is positioned at the bottom of the positioning rod, and the positioning rod passes through the outer side surface of the rear ladder frame and is positioned at the bottom of the self-locking mechanism.
Through above-mentioned technical scheme, adopt the couple to be connected with the locating lever, can make the locating lever restriction self-locking mechanism's range of movement, make preceding ladder frame and back ladder frame more firm when being in the biggest angle, improve the security of using.
As a preferable scheme of the self-locking mechanism, a hole groove is formed in the right side surface of the self-locking mechanism, and the left end of the push rod is connected with the adjusting rod through the hole groove.
Through above-mentioned technical scheme, adopt the push rod to make the regulation pole move about, can drive U type fixed plate and remove when adjusting the pole and remove, the removal of U type fixed plate can oppress first reset spring to reach the purpose of adjusting the angle of opening of preceding ladder frame and back ladder frame.
As a preferable scheme of the utility model, through holes are respectively formed in the left side and the right side of the U-shaped fixing plate, the adjusting rod is connected with the U-shaped fixing plate by penetrating through the through holes, and the first reset spring is positioned on the inner side of the U-shaped fixing plate.
Above-mentioned technical scheme, through the removal of U type fixed plate, make the connection bottom plate drive spacing frame and remove, when spacing frame removes the stopper top, can make second reset spring be in between the stopper to reach the effect of automatic locking.
Compared with the prior art, the angle self-locking device of the safe household ladder provided by the utility model has the following beneficial effects:
1. according to the utility model, the limiting frame is driven to move by the connecting bottom plate through the movement of the U-shaped fixing plate, and when the limiting frame moves to the top of the limiting block, the second reset spring is positioned between the limiting blocks, so that the effect of automatic locking is achieved.
2. According to the utility model, the adjusting rod can move left and right through the push rod, the U-shaped fixing plate can be driven to move when the adjusting rod moves, and the first return spring is pressed by the movement of the U-shaped fixing plate, so that the aim of adjusting the opening angles of the front ladder frame and the rear ladder frame is fulfilled.
Drawings
In order to more clearly illustrate the technical solutions of the inventive embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only examples of the inventive embodiments of the present utility model, and that other drawings can be obtained according to these drawings without the need of inventive effort for a person skilled in the art.
FIG. 1 is a schematic side view of an embodiment of the present utility model;
FIG. 2 is a schematic diagram of a self-locking mechanism according to an embodiment of the present utility model;
FIG. 3 is a schematic diagram illustrating a U-shaped fixing plate structure according to an embodiment of the present utility model;
fig. 4 is a schematic diagram illustrating connection of a limiting frame structure according to an embodiment of the present utility model.
Reference numerals: 1. a front ladder frame; 2. a rear ladder frame; 3. folding a spring pedal; 4. a positioning rod; 5. fixing the bolt; 6. a telescoping tube; 7. a self-locking mechanism; 71. a fixing member; 72. a fixed rod; 73. a limiting block; 8. a push rod; 9. an adjusting rod; 91. a first return spring; 10. a U-shaped fixing plate; 11. a connecting bottom plate; 12. a limit frame; 121. a fixed block; 122. a second return spring; 13. a hook.
Detailed Description
In order to make the objects, technical solutions and advantages of the inventive embodiments of the present utility model more apparent, the inventive implementation routine will be described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present utility model.
In the description of the inventive embodiments, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "inner", "outer", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience in describing the inventive embodiments and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the inventive embodiments.
In describing embodiments of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "coupled" should be construed broadly, and may be, for example, fixedly coupled, integrally coupled, or detachably coupled; may be a communication between the interiors of two elements; either directly or indirectly through intermediaries, the specific meaning of the terms in the inventive embodiments of the present utility model will be understood by those skilled in the art in the specific case.
Embodiment one:
as shown in fig. 1-2, the angle self-locking device of the safe household ladder of the embodiment of the utility model comprises a front ladder frame 1 and a rear ladder frame 2, wherein a folding spring pedal 3 is arranged between the front ladder frame 1 and the rear ladder frame 2, the inner side of the lower end of the rear ladder frame 2 is connected with a positioning rod 4, the two side surfaces of the front ladder frame 1 and the rear ladder frame 2 are respectively provided with a fixed bolt 5, the lower end between the front ladder frame 1 and the rear ladder frame 2 is connected with a telescopic sleeve 6, and the bottom of the telescopic sleeve 6 is provided with a self-locking mechanism 7.
The inside left end of self-locking mechanism 7 is provided with mounting 71, the outside surface of mounting 71 is connected with dead lever 72, and the inside bottom surface processing of self-locking mechanism 7 has stop block 73 of regular range, the right side surface of self-locking mechanism 7 is connected with push rod 8, the left end of push rod 8 links to each other with the right-hand member of adjusting pole 9, the surface processing of adjusting pole 9 has first reset spring 91, and adjust pole 9 and U type fixed plate 10 and be connected, U type fixed plate 10 is fixed in the top surface of connecting plate 11, the bottom front end of connecting plate 11 is connected with couple 13, the bottom surface of connecting plate 11 is connected with spacing frame 12, and the inboard bottom processing of spacing frame 12 has fixed block 121, the top of fixed block 121 is connected with second reset spring 122.
Screw holes are respectively formed in the left and right ends of the top surface of the connecting bottom plate 11, and the left and right ends of the U-shaped fixing plate 10 are fixed to the top surface of the connecting bottom plate 11 through the screw holes. The advantage is that connect U type fixed plate 10 through connecting bottom plate 11, can make the inner structure of self-locking mechanism 7 more firm.
The hook 13 is positioned at the bottom of the positioning rod 4, and the positioning rod 4 passes through the outer side surface of the rear ladder frame 2 and is positioned at the bottom of the self-locking mechanism 7. The advantage is, through the connection of couple 13 and locating lever 4, can make locating lever 4 restriction self-locking mechanism 7's range of movement, makes preceding ladder frame 1 and back ladder frame 2 more firm when being in the biggest angle, improves the security of using.
Embodiment two: as shown in fig. 2-4, as an improvement over the previous embodiment.
The right side surface of the self-locking mechanism 7 is provided with a hole groove, and the left end of the push rod 8 is connected with the adjusting rod 9 through the hole groove. The advantage is, can make the regulation pole 9 control the removal through push rod 8, can drive U type fixed plate 10 and remove when adjusting the pole 9 and remove, and the removal of U type fixed plate 10 can oppress first reset spring 91 to reach the purpose of adjusting the open angle of preceding ladder frame 1 and back ladder frame 2.
Through holes are respectively formed in the left side and the right side of the U-shaped fixing plate 10, the adjusting rod 9 is connected with the U-shaped fixing plate 10 by penetrating through the through holes, and the first reset spring 91 is located on the inner side of the U-shaped fixing plate 10. The advantage is, through the removal of U type fixed plate 10, makes connection bottom plate 11 drive spacing frame 12 and removes, and when spacing frame 12 moved to stopper 73 top, can make second reset spring 122 be in between the stopper 73 to reach the effect of automatic locking.
When the novel adjustable self-locking device is used, the adjusting rod 9 can be moved left and right through the push rod 8, the U-shaped fixing plate 10 can be driven to move when the adjusting rod 9 moves, the U-shaped fixing plate 10 moves to press the first reset spring 91, the aim of adjusting the opening angle of the front ladder frame 1 and the rear ladder frame 2 is achieved, the connecting bottom plate 11 drives the limiting frame 12 to move through the movement of the U-shaped fixing plate 10, and when the limiting frame 12 moves to the top of the limiting block 73, the second reset spring 122 can be positioned between the limiting blocks 73, so that the effect of automatic locking is achieved.
While the basic principles of the present utility model have been shown and described, the foregoing is provided by way of illustration of a preferred embodiment of the utility model, and not by way of limitation, the foregoing embodiment and description are merely illustrative of the principles of the utility model, and any modifications, equivalents, improvements or modifications not within the spirit and scope of the utility model should be included within the scope of the utility model.
Claims (5)
1. The utility model provides an angle self-locking device of safe domestic ladder, includes preceding ladder frame (1) and back ladder frame (2), its characterized in that: a folding spring pedal (3) is arranged between the front ladder frame (1) and the rear ladder frame (2), a positioning rod (4) is connected to the inner side of the lower end of the rear ladder frame (2), fixing bolts (5) are respectively processed on the surfaces of the two sides of the front ladder frame (1) and the rear ladder frame (2), a telescopic sleeve (6) is connected to the lower end between the front ladder frame (1) and the rear ladder frame (2), and a self-locking mechanism (7) is arranged at the bottom of the telescopic sleeve (6);
the inside left end of self-locking mechanism (7) is provided with mounting (71), the outside surface of mounting (71) is connected with dead lever (72), just the inside bottom surface processing of self-locking mechanism (7) has stopper (73) of regular spread, the right side surface of self-locking mechanism (7) is connected with push rod (8), the left end of push rod (8) links to each other with the right-hand member of adjusting pole (9), the surface processing of adjusting pole (9) has first reset spring (91), just adjust pole (9) and U type fixed plate (10) are connected, the top surface of connecting bottom plate (11) is fixed in to U type fixed plate (10), the bottom front end of connecting bottom plate (11) is connected with couple (13), the bottom surface of connecting bottom plate (11) is connected with spacing frame (12), just the inboard bottom processing of spacing frame (12) has fixed block (121), the top of fixed block (121) is connected with second reset spring (122).
2. The angle self-locking device of a safety household ladder of claim 1, wherein: screw holes are respectively formed in the left end and the right end of the top surface of the connecting bottom plate (11), and the left end and the right end of the U-shaped fixing plate (10) are fixed to the top surface of the connecting bottom plate (11) through the screw holes.
3. The angle self-locking device of a safety household ladder of claim 1, wherein: the hook (13) is positioned at the bottom of the positioning rod (4), and the positioning rod (4) penetrates through the outer side surface of the rear ladder frame (2) and is positioned at the bottom of the self-locking mechanism (7).
4. The angle self-locking device of a safety household ladder of claim 1, wherein: the right side surface of the self-locking mechanism (7) is provided with a hole groove, and the left end of the push rod (8) is connected with the adjusting rod (9) through the hole groove.
5. The angle self-locking device of a safety household ladder of claim 1, wherein: through holes are respectively formed in the left side and the right side of the U-shaped fixing plate (10), the adjusting rod (9) is connected with the U-shaped fixing plate (10) by penetrating through the through holes, and the first reset spring (91) is located on the inner side of the U-shaped fixing plate (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320849842.9U CN219638747U (en) | 2023-04-17 | 2023-04-17 | Angle self-locking device of safe household ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320849842.9U CN219638747U (en) | 2023-04-17 | 2023-04-17 | Angle self-locking device of safe household ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219638747U true CN219638747U (en) | 2023-09-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320849842.9U Active CN219638747U (en) | 2023-04-17 | 2023-04-17 | Angle self-locking device of safe household ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219638747U (en) |
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2023
- 2023-04-17 CN CN202320849842.9U patent/CN219638747U/en active Active
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