Elevator overload stopping structure

Abstract

The utility model relates to the technical field of elevators, which comprises an ejection component and is characterized in that the ejection component is fixedly connected to the lower end of a bottom plate of the elevator, penetrates through a fixing plate fixedly connected to the elevator through a first open groove, and further penetrates through a supporting plate fixedly connected to the elevator through a second open groove. A fixing sleeve shell is fixedly connected to the supporting plate, a stopping column is slidably connected into the fixing sleeve shell, and a stopping groove is formed in the position, corresponding to the stopping column, in the wall body. The elevator bottom plate is pressed downwards, the first spring is compressed, the supporting column moves downwards, the ejection block pushes out the stopping column, the stopping column is pushed into the stopping groove, and therefore the elevator is clamped and prevented from continuously working under the overload condition, and the safety of the elevator is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, in particular to an elevator overload stopping structure. Background Art

[0002] Elevator is a kind of transportation equipment for vertical transportation of pedestrians or goods. Elevator is the most closely related to residential buildings and office buildings. Elevator is the main tool for people to go up and down the stairs. It is used frequently and usually overloaded during peak hours.

[0003] A Chinese patent with a search announcement number of CN218708388U discloses an elevator overload detection device.

[0004] The above technical scheme comprises: an elevator body, a bottom groove is arranged inside the elevator body, a support plate is movably connected to the inner wall of the bottom groove, and the corners of the bottom wall of the bottom groove are fixedly connected to the limit rod. The elevator overload detection device, the support plate is sleeved with the outer frame sleeve, the limit rod and the limit plate through a sleeve ring, so as to limit the up and down movement of the support plate. During the downward movement, due to the action of the limit rod at the corner and the limit plate in the middle of the side, when the support plate moves downward, there will not be more people on one side, and more pressure on this side. When the support plate moves downward, it will only move downward as a whole under the action of the limit. When the weight exceeds the limit, the support plate will contact the sensor and send an alarm to remind, so as to limit the lifting process of the support plate, ensure the uniformity of the force on the support plate, and will not cause deviation in sensor detection due to tilt, so as to ensure the safety of elevator use.

[0005] However, in the above solution, this technology cannot stop an overloaded elevator. If the elevator does not receive the overload signal sent by the sensor, or cannot stop working according to the overload, it will cause great safety hazards.

[0006] To this end, we propose an elevator overload stop structure. Utility Model Content

[0007] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides an elevator overload stopping structure.

[0008] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an elevator overload stop structure, including an ejection assembly, characterized in that: the ejection assembly is fixedly connected to the lower end of the elevator bottom plate, the ejection assembly penetrates the fixed plate fixedly connected to the elevator through a first slot, the ejection assembly also penetrates the support plate fixedly connected to the elevator through a second slot, a fixed sleeve is fixedly connected to the support plate, a stop column is slidably connected in the fixed sleeve, and a stop groove is opened in the wall at the corresponding position of the stop column.

[0009] Preferably, the ejection assembly comprises a support column, one side of the support column is fixedly connected to an ejection block, the upper end of the ejection block is fixedly connected to a limit plate, and the limit plate is arranged at the lower end of the fixed plate.

[0010] Preferably, four evenly distributed first springs are fixedly connected to the lower end of the elevator bottom plate, and the first springs are also fixedly connected to the fixed plate.

[0011] Preferably, the stop column comprises a column body, a push block is slidably connected to a side of the column body close to the support column, and the push block is located below the ejection block.

[0012] Preferably, a slope is provided at the lower end of the ejection block, and an L-shaped limiting plate is further provided on one side of the ejection assembly, and the height and length of the L-shaped limiting plate are equal to those of the slope.

[0013] Preferably, a force storage spring is fixedly connected to one side of the push block, the force storage spring is fixedly connected to a groove opened in the column, and a limiting sliding groove is opened on one side of the column.

[0014] Preferably, the fixed sleeve includes a shell, a limiting groove is provided on the side of the shell, a return plate arranged on one side of the stop column is slidably connected in the limiting groove, one side of the limiting groove is connected to the return plate through a return spring, and the return spring has a stiffness coefficient smaller than that of the storage spring.

[0015] The utility model provides an elevator overload stop structure, which has the following improvements and advantages compared with the prior art:

[0016] (1) The utility model adopts an ejection assembly to push the stop column into the stop groove, and the ejection assembly is fixedly connected to the lower end of the elevator bottom plate. The ejection assembly passes through a fixed plate fixedly connected to the elevator through a first slot, and the ejection assembly also passes through a support plate fixedly connected to the elevator through a second slot. A fixed sleeve is fixedly connected to the support plate, and the stop column is slidably connected in the fixed sleeve. The wall at the corresponding position of the stop column is provided with an interception groove, and the ejection assembly includes a support column, and a ejection block is fixedly connected to one side of the support column, and the upper end of the ejection block is fixed A limit plate is connected, which is arranged at the lower end of the fixed plate. Four evenly distributed first springs are fixedly connected to the lower end of the elevator bottom plate. The first springs are also fixedly connected to the fixed plate. The stop column includes a column body. A push block is slidably connected to the side of the column body close to the support column. The push block is located below the ejection block. By pressing down the elevator bottom plate, the first spring is compressed, the support column moves downward, and the ejection block pushes the stop column out. The stop column is pushed into the stop groove, thereby jamming the elevator to prevent the elevator from continuing to work when overloaded, effectively improving the safety of the elevator.

[0017] (2) The utility model is provided with an inclined surface at the lower end of the ejection block, and an L-shaped limit plate is also provided on one side of the ejection assembly. The height and length of the L-shaped limit plate are equal to those of the inclined surface. A force storage spring is fixedly connected to one side of the push block. The force storage spring is fixedly connected to a groove provided in the column body. A limit sliding groove is provided on one side of the column body. The fixed sleeve shell includes a shell body. A limit groove is provided on the side of the shell body. A return plate provided on one side of the stop column is slidably connected in the limit groove. One side of the limit groove is connected to the return plate through a return spring. The return spring is smaller than the force of the force storage spring. The L-shaped limit plate slides into the limit slot during the downward movement of the ejection block, so that the push block slides into the groove along the inclined surface, and the column does not move. When the L-shaped limit plate leaves the limit slot, since the stiffness coefficient of the storage spring is greater than the return spring, the storage spring will push the column to move backward, so that the stop column instantly enters the stop slot, avoiding the situation where the overload weight is not enough and the stop column is not far enough to enter the stop slot, the elevator cannot be stuck or the connection is unstable, thereby improving the practicability of the device and enhancing the stability of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

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

[0020] Figure 2 It is a three-dimensional schematic diagram of the ejection assembly in the structure of the utility model;

[0021] Figure 3 It is a plan view of a fixed casing in the structure of the utility model;

[0022] Figure 4 It is a plan view of the stop column in the structure of the utility model.

[0023] Legend:

[0024] 10. Elevator bottom plate; 11. Spring seat; 12. First spring; 13. Fixed plate; 14. First slot; 15. Second slot; 16. Support plate; 20. Ejector assembly; 21. Support column; 22. Limit plate; 23. Ejector block; 24. Inclined surface; 25. L-shaped limit plate; 30. Fixed sleeve; 31. Shell; 32. Limit groove; 33. Return spring; 40. Stop column; 41. Column; 42. Groove; 43. Force storage spring; 44. Push block; 45. Return plate; 46. Limit slide groove; 47. Stop groove. DETAILED DESCRIPTION

[0025] The invention is further described below in conjunction with the accompanying drawings and specific implementation methods:

[0026] See also Figure 1 to Figure 2 Embodiment 1 is described, including an ejection assembly 20, the ejection assembly 20 is fixedly connected to the lower end of the elevator bottom plate 10, the ejection assembly 20 penetrates the fixed plate 13 fixedly connected to the elevator through the first slot 14, the fixed plate 13 is used to provide fixing conditions for the first spring 12, the ejection assembly 20 also penetrates the support plate 16 fixedly connected to the elevator through the second slot 15, the support plate 16 is used to support the stop column 40, the support plate 16 is fixedly connected with a fixed sleeve 30, which is used to limit the stop column 40, the stop column 40 is slidably connected in the fixed sleeve 30, and a stop groove 47 is opened in the wall at the corresponding position of the stop column 40, the position of the stop groove 47 corresponds to the position of the stop column 40, so that the stop column 40 can enter the stop groove 47 conveniently, and the ejection assembly 20 includes a support Column 21, one side of the support column 21 is fixedly connected with an ejection block 23, the ejection block 23 is set to push the stop column 40 into the stop groove 47, the upper end of the ejection block 23 is fixedly connected with a limit plate 22, the limit plate 22 is to prevent the ejection block 23 from moving to the lower end of the stop column 40, thereby causing structural failure, the limit plate 22 is arranged at the lower end of the fixed plate 13, improves the practicality of the structure, the lower end of the elevator bottom plate 10 is fixedly connected with four evenly distributed first springs 12, the first spring 12 is used to determine the standard load of the elevator, the first spring 12 is also fixedly connected to the fixed plate 13, the stop column 40 includes a column 41, and the column 41 is slidably connected to a push block 44 on one side close to the support column 21, the push block 44 is located below the ejection block 23, so that the push block 44 can be pushed when the ejection block 23 moves downward.

[0027] In this embodiment, the elevator bottom plate 10 is pressed down to compress the first spring 12, the support column 21 moves downward, and the ejection block 23 pushes out the stop column 40, and the stop column 40 is pushed into the stop groove 47, thereby jamming the elevator to prevent the elevator from continuing to work when overloaded, thereby effectively improving the safety of the elevator.

[0028] Example 2

[0029] See also Figures 2 to 4Embodiment 2 is described, including an inclined surface 24 at the lower end of the ejection block 23, the setting of the inclined surface 24 facilitates the ejection of the push block 44, and an L-shaped limit plate 25 is also provided on one side of the ejection assembly 20. The function of the L-shaped limit plate 25 is to limit the column 41. The height and length of the L-shaped limit plate 25 and the inclined surface 24 are equal, that is, when the push block 44 moves to the inclined surface 24, the L-shaped limit plate 25 also enters the limit slide groove 46, and a force storage spring 43 is fixedly connected to one side of the push block 44. The function of the force storage spring 43 is to convert the movement of the push block 44 into elastic potential energy. The force storage spring 43 is fixedly connected to the groove 42 opened in the column 41, and a limit slide groove 46 is opened on one side of the column 41. 6. The function of the limiting slide groove 46 is to limit the column 41. The fixed housing 30 includes a shell 31. A limiting groove 32 is provided on the side of the shell 31. The setting of the limiting groove 32 limits the sliding of the column 41. A return plate 45 arranged on one side of the stop column 40 is slidably connected in the limiting groove 32. The function of the return plate 45 is to facilitate the return of the stop column 40. One side of the limiting groove 32 is connected to the return plate 45 through a return spring 33. The return spring 33 returns the stop column 40. The return spring 33 has a smaller stiffness coefficient than the force storage spring 43. When the column 41 loses the restriction of the L-shaped limiting plate 25, the force storage spring 43 can push the return spring 33 to be compressed.

[0030] In the present embodiment, the L-shaped limit plate 25 slides into the limit slot 46 during the downward movement of the ejection block 23, so that the push block 44 slides into the groove 42 along the inclined surface 24, and the column 41 does not move. When the L-shaped limit plate 25 leaves the limit slot 46, since the stiffness coefficient of the force storage spring 43 is greater than the return spring 33, the force storage spring 43 will push the column 41 to move backward, so that the stop column 40 instantly enters the stop slot 47, avoiding the situation that the overload weight is not enough and the stop column 40 is not enough to enter the stop slot 47, and the elevator cannot be stuck or the connection is unstable, thereby improving the practicality of the device and enhancing the stability of the structure.

Claims

1. An elevator overload stop structure, comprising an ejection assembly (20), characterized in that: The ejection assembly (20) is fixedly connected to the lower end of the elevator bottom plate (10); the ejection assembly (20) penetrates a fixed plate (13) fixedly connected to the elevator through a first slot (14); the ejection assembly (20) also penetrates a support plate (16) fixedly connected to the elevator through a second slot (15); a fixed sleeve (30) is fixedly connected to the support plate (16); a stop column (40) is slidably connected inside the fixed sleeve (30); and a stop groove (47) is provided in the wall at a position corresponding to the stop column (40).

2. An elevator overload stop structure according to claim 1, characterized in that: The ejection assembly (20) comprises a support column (21), one side of the support column (21) is fixedly connected to an ejection block (23), the upper end of the ejection block (23) is fixedly connected to a limit plate (22), and the limit plate (22) is arranged at the lower end of the fixed plate (13).

3. The elevator overload stop structure according to claim 1, characterized in that: Four evenly distributed first springs (12) are fixedly connected to the lower end of the elevator bottom plate (10), and the first springs (12) are also fixedly connected to a fixed plate (13).

4. The elevator overload stop structure according to claim 2, characterized in that: The stop column (40) comprises a column body (41), and a push block (44) is slidably connected to one side of the column body (41) close to the support column (21), and the push block (44) is located below the ejection block (23).

5. The elevator overload stop structure according to claim 2, characterized in that: The lower end of the ejection block (23) is provided with an inclined surface (24), and one side of the ejection assembly (20) is also provided with an L-shaped limiting plate (25), and the height and length of the L-shaped limiting plate (25) are equal to those of the inclined surface (24).

6. An elevator overload stop structure according to claim 4, characterized in that: A force storage spring (43) is fixedly connected to one side of the push block (44), and the force storage spring (43) is fixedly connected to a groove (42) provided in the column (41). A limiting sliding groove (46) is provided on one side of the column (41).

7. An elevator overload stop structure according to claim 6, characterized in that: The fixed sleeve (30) comprises a shell (31), a side of the shell (31) is provided with a limiting groove (32), a return plate (45) arranged on one side of the stop column (40) is slidably connected in the limiting groove (32), one side of the limiting groove (32) is connected to the return plate (45) via a return spring (33), and the spring coefficient of the return spring (33) is smaller than that of the force storage spring (43).

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