CN209990434U - Hasp and collapsible ladder - Google Patents
Hasp and collapsible ladder Download PDFInfo
- Publication number
- CN209990434U CN209990434U CN201920221475.1U CN201920221475U CN209990434U CN 209990434 U CN209990434 U CN 209990434U CN 201920221475 U CN201920221475 U CN 201920221475U CN 209990434 U CN209990434 U CN 209990434U
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- spring
- ladder frame
- bolt
- shaft
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Abstract
The utility model discloses a hasp and collapsible ladder, hasp include bolt axle and bolt seat, are provided with the shell fragment piece in the bolt seat, and the shell fragment piece includes the diaphragm, is provided with bellied button on the diaphragm, and the front end of diaphragm is connected with preceding shell plate, and the rear end of diaphragm is connected with back shell plate. The bolt seat includes the roof, is provided with the opening on the roof, the front end fixedly connected with front board of roof, the rear end fixedly connected with back board of roof. The button is arranged at the opening, and the lower end of the front spring plate is abutted to the inner side wall of the front side plate. The well front portion of bolt axle is provided with the step portion, and the middle part of bolt axle is provided with annular recess, and the bolt axle passes back sideboard, back diving board, preceding diving board and preceding sideboard in proper order. The front part of the bolt shaft is sleeved with a spring, the front end of the spring is connected to the front elastic plate, and the rear end of the spring is connected to the step part. The foldable ladder is provided with the lock catch, the ladder comprises a supporting plate and a supporting rod, and the supporting plate and the supporting rod can be locked by pushing the bolt shaft, so that the safety of a user is guaranteed.
Description
Technical Field
The utility model relates to a ladder field, concretely relates to hasp and collapsible ladder.
Background
Current collapsible ladder includes first ladder frame of upper end articulated and second ladder frame, still is provided with supporting component between first ladder frame and the second ladder frame, when the ladder expandes the use, supporting component provides the support for first ladder frame and second ladder frame, prevent the occurence of failure, but does not have the hasp subassembly in the supporting component of current, can't pin supporting component, supporting component easily takes place to turn up when the ladder uses, lead to first ladder frame and second ladder frame to convert into, harm user's personal safety.
SUMMERY OF THE UTILITY MODEL
To the ladder that exists among the prior art does not have hasp subassembly, the problem of easy harm user's safety, the utility model discloses a first purpose provides a hasp.
The utility model adopts the following technical proposal:
a lock catch comprises a pin shaft and a pin seat, wherein a spring piece is arranged in the pin seat and comprises a transverse plate, a raised button is arranged on the transverse plate, the front end of the transverse plate is obliquely connected with a front spring plate, and the rear end of the transverse plate is obliquely connected with a rear spring plate; the bolt seat comprises a top plate, an opening is formed in the top plate, a front side plate is fixedly connected to the front end of the top plate, and a rear side plate is fixedly connected to the rear end of the top plate; the button is arranged at the opening, and the lower end of the front elastic plate is abutted against the inner side wall of the front side plate; the rear side plate, the rear elastic plate, the front elastic plate and the front side plate are all provided with through holes;
the middle front part of the bolt shaft is provided with a step part, the middle part of the bolt shaft is provided with an annular groove, the bolt shaft sequentially penetrates through holes of the rear side plate, the rear spring plate, the front spring plate and the front side plate, the front part of the bolt shaft is sleeved with a spring, the front end of the spring is connected to the front spring plate, and the rear end of the spring is connected to the step part.
Preferably, the bolt shaft moves forwards, the spring is compressed by the step part, the spring extrudes the front elastic plate, the elastic piece rotates around the position where the lower end of the front elastic plate is abutted to the front edge plate, the rear elastic plate is lifted up, and when the groove moves to the position of the rear elastic plate, the lower end of the rear elastic plate is buckled into the groove to lock the bolt shaft;
the button is pressed downwards, the rear elastic plate can be separated from the groove, and the plug pin shaft retracts to return under the elastic force action of the spring.
Preferably, a blocking piece groove is formed in the pin shaft behind the groove, a blocking piece is inserted in the blocking piece groove and can be in contact with the inner side wall of the rear edge plate, and the blocking piece can block the pin shaft from being separated from the pin seat.
Preferably, the left side and the right side of the front side plate are provided with side plates, and threaded holes are formed in the side plates.
Preferably, the rear part of the bolt shaft is sleeved with a handle cap.
A second object of the present invention is to provide a foldable ladder.
A foldable ladder comprises a first ladder frame and a second ladder frame, wherein the upper end of the first ladder frame is hinged with the upper end of the second ladder frame, the middle part of the first ladder frame is hinged with a support plate, two sides of the middle part of the second ladder frame are hinged with support rods, and the rear ends of the support rods are respectively hinged to the middle parts of the left end and the right end of the support plate;
the front parts of the left end and the right end of the supporting plate are respectively provided with a first round hole, the middle part of the supporting rod is provided with a second round hole, when the first ladder frame and the second ladder frame are unfolded, the supporting plate and the supporting rod are laid flat, the supporting rod is positioned on the side part of the supporting plate, and the first round hole in the supporting plate is matched with the second round hole in the supporting rod;
the lock catches are arranged on two sides of the bottom surface of the supporting plate, the side plates are fixed on two sides of the first round hole, the front end of the bolt shaft is arranged in the first round hole, after the first ladder frame and the second ladder frame are unfolded, the bolt shaft is pushed, and the front end of the bolt shaft can extend into the second round hole to lock the supporting plate and the supporting rod;
the button is pressed, the bolt shaft withdraws from the second round hole, the supporting plate and the supporting rod are unlocked, and the first ladder frame and the second ladder frame can be folded.
The utility model has the advantages that:
after the first ladder frame and the second ladder frame of ladder expand, promote the bolt axle, pin backup pad and bracing piece, when the user used the ladder, the condition that first ladder frame and second ladder frame folded or separated can not take place, has ensured user's safety, and this hasp simple structure, small and exquisite installs and does not take space in the bottom surface of backup pad, does not influence the normal use of ladder, and this hasp excellent in use effect has splendid application prospect.
Drawings
Fig. 1 is a sectional view of the structure of the latch in a normal state of the inserting pin.
Fig. 2 is a sectional view of the structure of the latch in a state where the plug pin is pushed out.
Fig. 3 is a top view of a spring piece.
Fig. 4 is a top view of the pin base.
Fig. 5 is a schematic view of the construction of the latch shaft.
FIG. 6 is a schematic illustration of the deployment process of the foldable ladder.
Fig. 7 is a schematic view of the collapsible ladder after deployment.
Fig. 8 is a schematic view of the support plate with the latch mounted thereon.
Detailed Description
The utility model is described in detail with the following figures:
example 1
Referring to fig. 1 to 5, the latch comprises a latch shaft 1 and a latch base, wherein a spring piece is arranged in the latch base.
The elastic piece comprises a transverse plate 2, a raised button 3 is arranged on the transverse plate 2, a front elastic plate 4 is obliquely connected with the front end of the transverse plate 2, and a rear elastic plate 5 is obliquely connected with the rear end of the transverse plate. Both the front springboard 4 and the rear springboard 5 are inclined forward.
The bolt seat includes roof 6, is provided with opening 7 on the roof, and the front end fixedly connected with front board 8 of roof, the rear end fixedly connected with back board 9 of roof.
The button 3 is placed at the opening 7, from which the button 3 protrudes. The lower end of the front spring plate 4 is abutted against the inner side wall of the front side plate 8.
Through holes are formed in the rear side plate 9, the rear elastic plate 5, the front elastic plate 4 and the front side plate 8.
The middle front part of the bolt shaft 1 is provided with a step part 10, the middle part of the bolt shaft is provided with an annular groove 11, and the bolt shaft sequentially passes through holes of the rear side plate, the rear spring plate, the front spring plate and the front side plate so as to be connected to the bolt seat and the spring piece.
The front part of the bolt shaft is sleeved with a spring 12, the front end of the spring is connected to the front spring plate 4, and the rear end of the spring is connected to the step part 10.
When the bolt shaft 1 moves forward, the step part 10 compresses the spring, the spring 12 extrudes the front elastic plate 4, the elastic piece rotates around the butt part of the lower end of the front elastic plate and the front edge plate, the rear elastic plate 5 is lifted upwards, when the groove 11 moves to the position of the rear elastic plate 5, the lower end of the rear elastic plate is buckled into the groove, and the bolt shaft 1 is locked. As shown in fig. 2.
When the button is pressed downwards, the rear elastic plate 5 can be separated from the groove 11, and the latch shaft retracts to the return position under the elastic force of the spring 12. As shown in fig. 1.
As shown in fig. 5, a blocking slot 13 is formed in the latch shaft behind the groove, a blocking piece 14 is inserted in the blocking slot, the blocking piece can be in contact with the inner side wall of the rear side plate, and the blocking piece can block the latch shaft from being separated from the latch base.
As shown in fig. 4, side plates 15 are provided on the left and right sides of the front plate, and threaded holes are formed in the side plates, so that the buckle can be fixed to a desired place through the side plates.
The rear part of the bolt shaft is sleeved with a handle cap 16, which is convenient for pushing the bolt shaft.
Example 2
As shown in fig. 6 to 8, a foldable ladder comprises a first ladder frame 17 and a second ladder frame 18, wherein the upper end of the first ladder frame is hinged with the upper end of the second ladder frame, the middle part of the first ladder frame is hinged with a support plate 19, two sides of the middle part of the second ladder frame are hinged with support rods 20, and the rear ends of the support rods are respectively hinged with the middle parts of the left end and the right end of the support plate 19.
The front portions of the left end and the right end of the supporting plate are provided with first round holes, the middle portion of the supporting rod is provided with a second round hole 21, when the first ladder frame and the second ladder frame are unfolded, the supporting plate 19 and the supporting rod 20 are laid flat, the supporting rod is located on the side portion of the supporting plate, and the first round holes in the supporting plate are matched with the second round holes in the supporting rod.
The bottom surface both sides of backup pad all are provided with the hasp of embodiment 1, the curb plate 15 of hasp is fixed in the both sides of first round hole, and first round hole is arranged in to the front end of bolt axle, and after first ladder frame and second ladder frame expand, promote the bolt axle, the front end of bolt axle can stretch into the second round hole downthehole, pins backup pad and bracing piece.
The button is pressed, the bolt shaft withdraws from the second round hole, the supporting plate and the supporting rod are unlocked, and the first ladder frame and the second ladder frame can be folded.
Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and the changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also belong to the protection scope of the present invention.
Claims (5)
1. A lock catch is characterized by comprising a pin shaft and a pin seat, wherein a spring piece is arranged in the pin seat and comprises a transverse plate, a raised button is arranged on the transverse plate, the front end of the transverse plate is obliquely connected with a front spring plate, and the rear end of the transverse plate is obliquely connected with a rear spring plate; the bolt seat comprises a top plate, an opening is formed in the top plate, a front side plate is fixedly connected to the front end of the top plate, and a rear side plate is fixedly connected to the rear end of the top plate; the button is arranged at the opening, and the lower end of the front elastic plate is abutted against the inner side wall of the front side plate; the rear side plate, the rear elastic plate, the front elastic plate and the front side plate are all provided with through holes; side plates are arranged on the left side and the right side of the front side plate, and threaded holes are formed in the side plates;
the middle front part of the bolt shaft is provided with a step part, the middle part of the bolt shaft is provided with an annular groove, the bolt shaft sequentially penetrates through holes of the rear side plate, the rear spring plate, the front spring plate and the front side plate, the front part of the bolt shaft is sleeved with a spring, the front end of the spring is connected to the front spring plate, and the rear end of the spring is connected to the step part.
2. A latch according to claim 1, wherein the latch shaft moves forward, the step compresses the spring, the spring presses the front springboard, the spring piece rotates around the position where the lower end of the front springboard abuts against the front springboard, the rear springboard is lifted, and when the groove moves to the position of the rear springboard, the lower end of the rear springboard is buckled into the groove to lock the latch shaft;
the button is pressed downwards, the rear elastic plate can be separated from the groove, and the plug pin shaft retracts to return under the elastic force action of the spring.
3. A latch as claimed in claim 1, wherein the latch shaft behind the recess is provided with a catch slot in which a catch is inserted, the catch being capable of engaging the inner side wall of the rear panel and the catch being capable of blocking the release of the latch shaft from the latch seat.
4. A latch as claimed in claim 1, wherein the rear of the latch shaft is sleeved with a handle cap.
5. A foldable ladder comprises a first ladder frame and a second ladder frame, wherein the upper end of the first ladder frame is hinged with the upper end of the second ladder frame;
the front parts of the left end and the right end of the supporting plate are respectively provided with a first round hole, the middle part of the supporting rod is provided with a second round hole, when the first ladder frame and the second ladder frame are unfolded, the supporting plate and the supporting rod are laid flat, the supporting rod is positioned on the side part of the supporting plate, and the first round hole in the supporting plate is matched with the second round hole in the supporting rod;
the lock catch as claimed in any one of claims 1 to 4 is arranged on both sides of the bottom surface of the supporting plate, the side plates are fixed on both sides of the first round hole, the front end of the bolt shaft is arranged in the first round hole, and when the first ladder frame and the second ladder frame are unfolded, the bolt shaft is pushed, and the front end of the bolt shaft can extend into the second round hole to lock the supporting plate and the supporting rod;
the button is pressed, the bolt shaft withdraws from the second round hole, the supporting plate and the supporting rod are unlocked, and the first ladder frame and the second ladder frame can be folded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920221475.1U CN209990434U (en) | 2019-02-20 | 2019-02-20 | Hasp and collapsible ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920221475.1U CN209990434U (en) | 2019-02-20 | 2019-02-20 | Hasp and collapsible ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209990434U true CN209990434U (en) | 2020-01-24 |
Family
ID=69288615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920221475.1U Active CN209990434U (en) | 2019-02-20 | 2019-02-20 | Hasp and collapsible ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209990434U (en) |
-
2019
- 2019-02-20 CN CN201920221475.1U patent/CN209990434U/en active Active
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