CN217872617U - Elevator pit cat ladder device and elevator safety coefficient - Google Patents
Elevator pit cat ladder device and elevator safety coefficient Download PDFInfo
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- CN217872617U CN217872617U CN202220409724.1U CN202220409724U CN217872617U CN 217872617 U CN217872617 U CN 217872617U CN 202220409724 U CN202220409724 U CN 202220409724U CN 217872617 U CN217872617 U CN 217872617U
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Abstract
The utility model discloses an elevator pit cat ladder device and elevator safety coefficient, including fixing base, cat ladder and at least one safety switch, on the fixing base was fixed in the well wall that is equipped with the pit access & exit, its left and right sides was equipped with respectively including first section with connect in the spout of first section second section, the cat ladder left and right sides is provided with the round pin axle of sliding connection in the spout respectively and can drives self relatively fixed seat and rotate, and the round pin axle can remove in two sections cell bodies, makes the cat ladder have the position of accomodating of using position and being higher than using position, and its lower extreme offsets bottom the pit when using position, and the upper end offsets with the well wall, is scrapable state, can paste when accomodating the position and hang on the well wall, and safety switch sets up on the fixing base can touch with the round pin axle and connect elevator safety circuit. The utility model discloses an elevator pit cat ladder device and elevator safety coefficient of rotation type can increase the utilization ratio of elevator well, and the maintenance of the maintainer of being convenient for work guarantees the elevator safe operation.
Description
Technical Field
The utility model relates to an elevator safety technical field especially relates to an elevator pit cat ladder device and elevator safety coefficient.
Background
In general, devices such as a buffer seat, a guide rail seat, and a drainage device are installed in an elevator pit, and in order to perform maintenance of these devices, a ladder for allowing a maintenance worker to enter and exit the pit needs to be installed. However, as the land cost and the building cost are increased, the utilization rate of the elevator shaft needs to be maximized, so that the space between the elevator car and the shaft wall cannot meet the installation requirement of the pit ladder, and an elevator maintainer cannot conveniently go in and out of the elevator pit to carry out equipment maintenance.
SUMMERY OF THE UTILITY MODEL
For overcoming the space defect of current elevator pit cat ladder device, the utility model discloses a main mesh lies in providing an elevator pit cat ladder device and elevator safety coefficient, can increase the utilization ratio of elevator well, and the maintenance of the easy access personnel work guarantees the elevator safe operation.
The purpose of the utility model can be realized through the following technical scheme:
the utility model provides an elevator pit cat ladder device, this elevator pit cat ladder device includes: the safety switch comprises a fixed seat, a ladder stand and at least one safety switch, wherein the fixed seat is fixed on a well wall provided with a pit access, the left side and the right side of the fixed seat are respectively provided with symmetrical sliding chutes, each sliding chute comprises a first section and a second section connected with the first section, and an included angle which is not 0 degree or 180 degrees is formed between the first section and the second section;
the left side and the right side of the ladder stand are respectively provided with a pin shaft; the pin shaft is connected in the sliding groove in a sliding mode and can drive the crawling ladder to rotate relative to the fixed seat, the pin shaft can move in the first section and the second section, and therefore displacement in the left-right direction and the up-down direction can be generated, the crawling ladder is enabled to have a using position and a containing position, when in the using position, the lower end of the crawling ladder is far away from the well wall and abuts against the bottom of the pit, the upper end of the crawling ladder abuts against the well wall provided with the pit inlet and outlet, and the crawling ladder is in a state that a user can climb; when the ladder stand is in a storage position, the ladder stand can be attached to and hung on the wall of the well; the use position is lower than the storage position;
the safety switch is arranged on the fixed seat and can be in contact with the pin shaft to connect an elevator safety loop.
As a further description of the above solution, the first section has a first end connected to the second section and a second end remote from the first end;
the storage position is located at the second end of the first section, and the first end of the first section is not lower than the second end.
As a further description of the above technical solution, the second segment includes a first extension unit and a second extension unit connected to the first extension unit, and the first extension unit is connected to the first end.
As a further description of the above technical solution, the number of the safety switches is 1.
As a further description of the above solution, the safety switch is an UKT switch.
As a further description of the above technical solution, the ladder stand includes two support portions and a plurality of stepping portions, the two support portions are respectively located at two sides of the fixing base in the left-right direction, and each support portion is slidably connected with the fixing base through the pin shaft;
the treading portions are connected between the two supporting portions and are perpendicular to the two supporting portions.
As further description of the technical scheme, the ladder stand is made of steel materials or aluminum materials.
The utility model also provides an elevator safety coefficient, include as above elevator pit cat ladder device, elevator car and to heavy, elevator pit cat ladder device when accomodating the position with elevator car with do not have the projection to the weight average.
The utility model discloses an outstanding effect does:
the utility model provides an elevator pit cat ladder device is when accomodating, and cat ladder main part can be laminated and hang on the pit wall, does not occupy elevator well space, when needs use, only need upwards gently carry cat ladder main part, and two round pin axles that its supporting part was equipped with slide to the position of use by the storage position in the spout that the fixing base was equipped with, can make cat ladder lower extreme keep away from the pit wall, offset with the pit bottom, and the upper end is supported and is leaned on the pit wall, wholly inclines between pit wall and pit bottom, is stable triangle state with pit wall, pit bottom to supply the maintainer to pass in and out the pit, and maintenance of equipment has guaranteed elevator safe operation;
the utility model discloses in the elevator pit cat ladder device that provides still set up safety switch, when cat ladder main part laminating is hung and is accomodate in the well wall, one of them round pin axle touches with safety switch and connects, make safety switch be in the closure state, the switch-on of elevator safety circuit, elevator system normal operating, when using the cat ladder main part, the round pin axle of setting slips in the spout and accomodates the position, no longer touch with safety switch and connect, the safety switch disconnection, make the synchronous disconnection of elevator safety circuit, the elevator outage has been guaranteed, can not cause the potential safety hazard to the maintainer.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of an elevator pit ladder climbing device in the utility model;
FIG. 2 is a side view of the elevator pit ladder apparatus of the present invention in the storage position;
fig. 3 is a side view of the ladder climbing device for an elevator pit of the present invention in a use position;
fig. 4 is a side view of the fixing base of the present invention.
Reference numerals: 1-a fixed seat; 2-climbing a ladder; 21-a support portion; 22-a tread portion; 3-a safety switch; 4-a well wall; 5-a pin shaft; 6-a chute; 61-first section; 62-second section.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "middle", "lower", "inner", "outer", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or assembly referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art. The following describes an embodiment of the present invention with reference to the overall structure thereof.
Referring to fig. 1 to 4, an embodiment of the present invention discloses an elevator pit ladder device, which includes a fixing base 1, a ladder 2 and at least one safety switch 3, wherein the fixing base 1 is fixed on a hoistway wall 4 provided with a pit entrance, the left and right sides of the fixing base 1 are respectively provided with symmetrical chutes 6, each chute 6 includes a first section 61 and a second section 62 connected to the first section 61, and an included angle different from 0 degree or 180 degrees is formed between the first section 61 and the second section 62;
the left side and the right side of the ladder stand 2 are respectively provided with a pin shaft 5; the pin shaft 5 is slidably connected in the chute 6 and can drive the ladder 2 to rotate relative to the fixed seat 1, the pin shaft 5 can move in the first section 61 and the second section 62, so that the pin shaft can generate displacement in the left-right direction and the up-down direction, and the ladder 2 has a use position and a storage position, when in the use position, the lower end of the ladder 2 is far away from the well wall 4 and abuts against the bottom of a pit, the upper end of the ladder 2 abuts against the well wall 4 provided with a pit access, and the ladder 2 is in a state that a user can climb; when in the storage position, the ladder stand 2 can be attached and hung on the well wall 4; the use position is lower than the storage position;
the safety switch 3 is arranged on the fixed seat 1, and the safety switch 3 can be in contact with the pin shaft 5 to connect an elevator safety loop.
In the above arrangement, the whole elevator pit ladder device is arranged in an elevator hoistway, the fixed seat 1 is in a cuboid shape and fixed on a hoistway wall 4 provided with a pit entrance/exit (not shown in the figure), symmetrical sliding grooves 6 are respectively arranged on the left and right side surfaces of the elevator pit ladder device, the ladder 2 can be slidably connected in the sliding grooves 6 through pin shafts 5 respectively arranged on the left and right sides, and the pin shafts 5 can rotate in the sliding grooves 6, so that the ladder 2 can rotate relative to the fixed seat 1. The sliding groove 6 comprises a first section 61 and a second section 62 connected to the first section 61, and an included angle which is not 0 degree or 180 degrees is formed between the two sections of groove bodies, so that the pin shaft 5 can generate displacement in the left-right direction and the up-down direction when moving in the first section 61 and the second section 62, the ladder stand is enabled to have a storage position and a use position which is lower than the storage position, and storage effectiveness is guaranteed.
When the ladder stand 2 is needed to be used, the pin shaft 5 generates displacement in the left-right direction and the up-down direction in the sliding groove 6 and slides from a storage position to a use position, meanwhile, the pin shaft 5 also rotates relative to the sliding groove 6 by taking the pin shaft as a shaft, the lower end of the ladder stand 2 is driven to be far away from the well wall 4 and abut against the bottom of a pit of an elevator, the upper end of the ladder stand forms a certain angle with the well wall 4 and integrally inclines between the well wall 4 and the bottom of the pit, and a stable triangular structure is formed with the well wall 4 and the bottom of the pit so that an overhaul worker can climb in and out of the pit; when cat ladder 2 do not use, can the laminating hang accomodate on well wall 4, occupation space not has increased the utilization ratio of elevator well. When the crawling ladder 2 is hung and stored, the pin shaft 5 can be in contact with the safety switch 3 arranged on the fixing seat 1 to switch on an elevator safety loop, the elevator can run normally, and when the crawling ladder 2 slides away from the storage position, the pin shaft 5 is not in contact with the safety switch 3 any more, the elevator safety loop is switched off synchronously, the power failure of the elevator is guaranteed, and potential safety hazards to maintenance personnel cannot be caused.
Referring to fig. 1 to 3, in the embodiment, the fixing base 1 is fixed on a shaft wall 4 provided with a pit entrance and exit through 2 expansion bolts, and is located at a lower side of the pit entrance and exit, for installing the ladder 2 and the safety switch 3. Cat ladder 2 adopt the steel material to make, for example the square steel guarantees that its self has sufficient mechanical strength and bears maintainer's weight, certainly, cat ladder 2 also can adopt steel materials such as square pipe, rectangular pipe, round steel or aluminum materials to make, carry and draw light the time guarantee cat ladder 2 self has sufficient mechanical strength and bears maintainer's weight can. Cat ladder 2 include two supporting parts 21 and a plurality of portion of trampling 22, two supporting parts 21 be located respectively the both sides of fixing base 1 left right direction, its upper end all is fixed and is provided with one round pin axle 5, round pin axle 5 orientation in the one end of fixing base 1 is installed to spout 6, can slide in spout 6 and not deviate from spout 6, in order to realize two supporting parts 21 with fixing base 1 sliding connection, a plurality of portions of trampling 22 all with two supporting parts 21 perpendicular to trample when supplying maintainer to come in and go out the pit, its distance between two liang sets up with the regulation interval that the people's leg can step.
Referring to fig. 1 and 2, in the embodiment, when the ladder 2 is in the storage position, the ladder 2 is vertically attached to and suspended on the hoistway wall 4, and there is no orthographic projection on the elevator car, the counterweight, and the like. In this case, the pin 5 also serves as a suspension to receive the weight of the ladder 2, and the bottom thereof is close to the pit doorway to such an extent that the ladder 2 can be lifted to a use position by an inspection worker operating outside the pit doorway.
Referring to fig. 1 and 3, in this embodiment, specifically, when the crawling ladder 2 is in the use position, the upper end of the crawling ladder 2 abuts against the hoistway wall 4, and the lower end of the crawling ladder abuts against the bottom of the pit, the crawling ladder 2 is integrally inclined between the hoistway wall 4 and the bottom of the pit, and forms a stable triangular structure with the hoistway wall 4 and the bottom of the pit, so that an inspector can climb in and out of the pit to inspect equipment. Of course, the inclination angle of the ladder 2 can be synchronously adjusted according to the rotation angle of the pin shaft 5 in the chute 6, so that the ladder is convenient for maintainers to climb.
Referring to fig. 4, in the present embodiment, the sliding groove 6 is arranged in an inverted "J" shape to allow the pin 5 to slide, and at this time, the first extending unit included in the second section 62 of the sliding groove 6 extends along the horizontal direction, the left side is connected with the first end at an angle of substantially 90 degrees, and the right side is connected with the second extending unit extending along the vertical direction. When the maintenance personnel use the ladder stand 2, the maintenance personnel lightly lift the ladder stand 2 at the pit entrance, and the pin shaft 5 can slide to the upper end (first end) from the lower end (second end) of the first section 61 of the chute 6, enter the first extending unit extending along the horizontal direction, and then slide downwards to the lowest point of the second extending unit, namely the using position. The use of the pin shaft 5 also enables the ladder stand 2 to rotate relative to the fixed seat 1, and the ladder stand can be stably supported between the well wall 4 and the bottom of the pit. The maintenance is accomplished the back and is moved, and the maintainer gently carries again cat ladder 2 makes cat ladder 2 laminate perpendicularly the well wall 4 accomodate can. Of course, in other embodiments, the sliding groove 6 may be configured in other shapes, so that the storage position is higher than the use position, and the storage effectiveness of the groove body of the sliding groove 6 on the pin 5 is ensured.
Referring to fig. 1 and 4, in particular, in the embodiment, the safety switch 3 is one, and is disposed near the right of the fixing base 1, and the top of the safety switch is located below the sliding groove 6, when the ladder 2 is in the storage position, the pin 5 disposed at the right side contacts with the top of the safety switch 3 to connect the elevator safety loop. Safety switch 3 adopt the UKT switch, the UKT switch be automatic re-setting normally open switch, because of round pin axle 5 touches at this moment, can be in the closure state, switch on elevator safety circuit. When the ladder stand 2 is in the use position, the pin shaft 5 slides away from the top of the safety switch 3 and is not in contact with the safety switch any more, so that the safety switch 3 is automatically reset and disconnected, an elevator safety loop is synchronously disconnected, the power failure of the elevator is ensured, and potential safety hazards to maintenance personnel can be avoided.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments of the invention without departing from the spirit and scope of the invention.
Claims (8)
1. An elevator pit ladder apparatus, comprising: the safety switch comprises a fixed seat, a ladder stand and at least one safety switch, wherein the fixed seat is fixed on a well wall provided with a pit access, the left side and the right side of the fixed seat are respectively provided with symmetrical sliding chutes, each sliding chute comprises a first section and a second section connected with the first section, and an included angle which is not 0 degree or 180 degrees is formed between the first section and the second section;
the left side and the right side of the ladder stand are respectively provided with a pin shaft; the pin shaft is connected in the sliding groove in a sliding mode and can drive the crawling ladder to rotate relative to the fixed seat, the pin shaft can move in the first section and the second section, and therefore displacement in the left-right direction and the up-down direction can be generated, the crawling ladder is enabled to have a using position and a containing position, when in the using position, the lower end of the crawling ladder is far away from the well wall and abuts against the bottom of the pit, the upper end of the crawling ladder abuts against the well wall provided with the pit inlet and outlet, and the crawling ladder is in a state that a user can climb; when the ladder stand is in a storage position, the ladder stand can be attached to and hung on the wall of the well; the use position is lower than the storage position;
the safety switch is arranged on the fixed seat and can be in contact with the pin shaft to connect an elevator safety loop.
2. The elevator pit ladder apparatus of claim 1, wherein the first section has a first end connected to the second section and a second end remote from the first end;
the storage position is located at the second end of the first section, and the first end of the first section is not lower than the second end.
3. The elevator pit ladder apparatus of claim 2, wherein the second section comprises a first extension element and a second extension element connected to the first extension element, the first extension element being connected to the first end.
4. An elevator pit ladder climbing device as defined in claim 1, wherein the number of safety switches is 1.
5. Elevator pit ladder arrangement according to claim 4, characterized in that the safety switch is a UKT switch.
6. The elevator pit climbing ladder device according to claim 1, wherein said climbing ladder comprises two support portions and a plurality of tread portions, said two support portions being respectively located on both sides of said fixing base in the left-right direction, each of said support portions being slidably connected to said fixing base by said pin;
the treading portions are connected between the two supporting portions and are perpendicular to the two supporting portions.
7. The elevator pit ladder apparatus of claim 6 wherein the ladder is made of steel or aluminum.
8. An elevator safety system comprising an elevator pit ladder apparatus as claimed in any one of claims 1 to 7, an elevator car and a counterweight, said elevator pit ladder apparatus being free from projection with respect to the elevator car and counterweight when in a stowed position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220409724.1U CN217872617U (en) | 2022-02-28 | 2022-02-28 | Elevator pit cat ladder device and elevator safety coefficient |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220409724.1U CN217872617U (en) | 2022-02-28 | 2022-02-28 | Elevator pit cat ladder device and elevator safety coefficient |
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| Publication Number | Publication Date |
|---|---|
| CN217872617U true CN217872617U (en) | 2022-11-22 |
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| CN202220409724.1U Active CN217872617U (en) | 2022-02-28 | 2022-02-28 | Elevator pit cat ladder device and elevator safety coefficient |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117905383A (en) * | 2024-03-19 | 2024-04-19 | 菱王电梯有限公司 | Automatic pit climbing device, control method and device thereof and elevator system |
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- 2022-02-28 CN CN202220409724.1U patent/CN217872617U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117905383A (en) * | 2024-03-19 | 2024-04-19 | 菱王电梯有限公司 | Automatic pit climbing device, control method and device thereof and elevator system |
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