A platform elevator safety anti-pinch device

Abstract

The utility model discloses a platform elevator safety anti -pinch device, including center cylinder, buffer structure and limiting structure, and center cylinder has center cylinder through -hole, and limiting structure is along the circumferential direction of the inner surface of center cylinder distribution, and buffer structure includes a plurality of " " shape layer, and a plurality of " " shape layer respectively along the circumferential direction of the outer surface of center cylinder distribution, and the " " shape layer between adjacent two has interval, the utility model discloses a platform elevator safety anti -pinch device, its beneficial effect lies in, buffer structure sets up a plurality of " " shape layer, and the diameter of vertical rod is small far big, effectively increases the interval at the contact point of barrier, prevents barrier to be in and to be wound to center cylinder, reduces the possibility that barrier is accidentally clamped.

Description

Technical Field

[0001] This utility model belongs to the field of elevator accessories, specifically relating to a platform elevator safety anti-pinch device. Background Technology

[0002] The utility model patent with publication number CN223342149U and subject name is an elevator door anti-pinch device. Its IPC classification number is B66B13 / 24. Its technical solution discloses that "the front of the car is provided with a car opening; the first car door and the second car door are respectively reciprocally slidably set on the car to close or open the car opening; the drive mechanism is used to drive the first car door and the second car door to reciprocate; the plug-in part is protrudingly set on the side of the first car door near the second car door; the plug-in groove is set on the side of the second car door near the first car door, and the plug-in groove can be plugged into the plug-in part."

[0003] Therefore, the above utility model patents have disclosed one technical solution for elevator door anti-pinch devices. However, the technical solutions disclosed in the above utility model patents focus on the inductive anti-pinch principle (when there are small objects such as ropes when the door is closing, the thickness of the objects will prevent the insertion part from being inserted or from being fully inserted into the insertion slot, and thus the first and second detection elements will be in a state of no electrical contact, the elevator traction equipment will stop starting, and the elevator will not move up or down), and have not further solved the problems of preventing obstacles from being pulled in and wrapped around the central cylinder, which need to be further improved. Utility Model Content

[0004] This utility model addresses the shortcomings of the existing technology by providing a platform elevator safety anti-pinch device.

[0005] This utility model adopts the following technical solution: a platform elevator safety anti-pinch device, comprising a central cylinder, a buffer structure, and a limiting structure. The central cylinder has a through hole, and the limiting structure is distributed along the circumferential direction of the inner surface of the central cylinder, wherein: The buffer structure includes multiple "Λ"-shaped layers, which are distributed along the circumferential direction of the outer surface of the central cylinder, with a gap between adjacent "Λ"-shaped layers; The “Λ”-shaped layer includes multiple uprights, which are fixedly connected to the central cylinder. The uprights are symmetrically distributed along the axial direction of the central cylinder, and there is a gap between adjacent uprights.

[0006] As a preferred technical solution to the above technical solutions, the pole has a proximal end and a distal end, the proximal end and the distal end are integrally formed, and the proximal end is embedded in the central cylinder and fixedly connected to the central cylinder.

[0007] As a preferred technical solution to the above technical solutions, the cross-section of both the distal end and the proximal end of the pole is circular, and the diameter of the cross-section of the distal end of the pole is larger than the diameter of the cross-section of the proximal end of the pole.

[0008] As a preferred technical solution of the above technical solution, the limiting structure includes multiple limiting protrusions, which are distributed along the circumferential direction of the inner surface of the central cylinder. The multiple limiting protrusions are integrally formed with the central cylinder, and a limiting groove is provided between two adjacent limiting protrusions.

[0009] As a preferred technical solution to the above technical solutions, the limiting structure also includes a limiting ring, which is distributed along the circumferential direction of the inner surface of the central cylinder. The limiting ring is integrally formed with the central cylinder, and there is a gap between the limiting ring and the limiting protrusion.

[0010] The platform elevator safety anti-pinch device disclosed in this utility model has the following advantages: the buffer structure is set with multiple "Λ"-shaped layers, and the diameter of the uprights is smaller at the near end and larger at the far end, which effectively increases the distance at the contact point of the obstacle, prevents the obstacle from being rolled into and wrapped around the central cylinder, and reduces the possibility of the obstacle being accidentally pinched. Attached Figure Description

[0011] Figure 1 This is a perspective view of this application.

[0012] Figure 2 This is a three-dimensional view from another perspective of this application.

[0013] Figure 3 This is the main view of this application.

[0014] Figure 4 This is a top view of this application.

[0015] Figure 5 It is along Figure 3 A three-dimensional sectional view along the AA direction.

[0016] Figure 6 yes Figure 1 A magnified view of a portion of region A.

[0017] Figure 7 yes Figure 2 A magnified view of a portion of region B.

[0018] Figure 8 yes Figure 5 A magnified view of region C.

[0019] The reference numerals in the attached drawings include: 100-center cylinder; 101-through hole of center cylinder; 200-buffer structure; 210-"Λ" shaped layer; 211-upright pole; 212-proximal end of upright pole; 213-distal end of upright pole; 300-limiting structure; 310-limiting protrusion; 320-limiting groove; 330-limiting ring. Detailed Implementation

[0020] This utility model discloses a platform elevator safety anti-pinch device. The following description, in conjunction with a preferred embodiment (Embodiment 1), is shown in the accompanying drawings. Figures 1 to 8 The specific embodiments of this utility model will be further described below.

[0021] See attached diagram. Figures 1 to 8 , Figures 1 to 5 The platform elevator safety anti-pinch device is shown from different perspectives. Figures 6 to 8 The partial structures of the platform elevator safety anti-pinch device are shown respectively.

[0022] Example 1.

[0023] Preferably, the platform elevator safety anti-pinch device includes a central cylinder 100, a buffer structure 200, and a limiting structure 300. The central cylinder 100 has a central cylinder through hole 101, and the limiting structure 300 is distributed along the circumferential direction of the inner surface of the central cylinder 100; so that a rotating shaft (not shown in the figure) passes through the central cylinder through hole 101, the rotating shaft is limited by the limiting structure 300, and the rotating shaft drives the central cylinder 100 and the buffer structure 200 to rotate as a whole, wherein: The buffer structure 200 includes multiple "Λ"-shaped layers 210 (see attached figure). Figure 4 The red part is one of the "Λ"-shaped layers 210. Multiple "Λ"-shaped layers 210 are distributed along the circumferential direction of the outer surface of the central cylinder 100, and there is a gap between two adjacent "Λ"-shaped layers 210. The “Λ”-shaped layer 210 includes multiple uprights 211, which are fixedly connected to the central cylinder 100. The multiple uprights 211 are symmetrically distributed along the axial direction of the central cylinder 100, and there is a gap between two adjacent uprights 211.

[0024] The upright 211 has a proximal end 212 and a distal end 213. The proximal end 212 and the distal end 213 are integrally formed. The proximal end 212 is embedded in the central cylinder 100 and is fixedly connected to the central cylinder 100.

[0025] The cross-sections of the distal end 213 and the proximal end 212 of the upright are both circular, and the diameter of the cross-section of the distal end 213 is significantly larger than that of the proximal end 212. This makes the distance between two adjacent distal ends 213 significantly smaller than the distance between two adjacent proximal ends 212. As a result, during the rotation of the central cylinder 100 and the buffer structure 200, obstacles contacted by the upright 211 can be swept away from the upright 211 instead of being rolled into the upright 211 and then wrapped around the central cylinder 100.

[0026] The limiting structure 300 includes multiple limiting protrusions 310, which are distributed along the circumferential direction of the inner surface of the central cylinder 100. The multiple limiting protrusions 310 are integrally formed with the central cylinder 100, and there is a limiting groove 320 between two adjacent limiting protrusions 310, so that the limiting protrusions 310 and the limiting groove 320 cooperate to limit the rotating shaft.

[0027] The limiting structure 300 also includes a limiting ring 330, which is distributed along the circumferential direction of the inner surface of the central cylinder 100. The limiting ring 330 is integrally formed with the central cylinder 100, and there is a gap between the limiting ring 330 and the limiting protrusion 310 so that the limiting ring 330 can assist in limiting the rotating shaft.

[0028] It is worth mentioning that the specific structure and other technical features of the rotating shaft involved in this utility model patent application should be regarded as prior art. The specific structure, working principle and possible control methods and spatial arrangement of these technical features can be conventionally selected in the field and should not be regarded as the inventive point of this utility model patent. This utility model patent will not elaborate further.

[0029] For those skilled in the art, modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A platform elevator safety anti-pinch device, characterized in that, It includes a central cylinder, a buffer structure, and a limiting structure. The central cylinder has a through hole, and the limiting structure is distributed circumferentially along the inner surface of the central cylinder. The buffer structure includes multiple "Λ"-shaped layers, which are distributed along the circumferential direction of the outer surface of the central cylinder, with a gap between adjacent "Λ"-shaped layers; The "Λ"-shaped layer includes multiple uprights, which are fixedly connected to the central cylinder. The uprights are symmetrically distributed along the axial direction of the central cylinder, and there is a gap between adjacent uprights.

2. The platform elevator safety anti-pinch device according to claim 1, characterized in that, The pole has a proximal end and a distal end, which are integrally formed. The proximal end is embedded in the central cylinder and fixedly connected to the central cylinder.

3. The platform elevator safety anti-pinch device according to claim 2, characterized in that, Both the cross-section of the distal end and the cross-section of the proximal end of the pole are circular, but the diameter of the cross-section at the distal end of the pole is larger than that at the proximal end.

4. The platform elevator safety anti-pinch device according to claim 1, characterized in that, The limiting structure includes multiple limiting protrusions, which are distributed along the circumferential direction of the inner surface of the central cylinder. The multiple limiting protrusions are integrally formed with the central cylinder, and there is a limiting groove between two adjacent limiting protrusions.

5. The platform elevator safety anti-pinch device according to claim 4, characterized in that, The limiting structure also includes a limiting ring, which is distributed along the circumferential direction of the inner surface of the central cylinder. The limiting ring is integrally formed with the central cylinder, and there is a gap between the limiting ring and the limiting protrusion.

Images