Home elevator pit maintenance mechanical stopping device

Abstract

The utility model relates to the technical field of car stopping, in particular to a household elevator pit maintenance mechanical stopping device which comprises a mounting plate, a mounting seat is fixedly connected to the upper surface of the mounting plate, an outer cylinder is fixedly connected to the inner surface of the mounting seat, and an inner rod is movably connected to the interior of the outer cylinder. A reversing module is fixedly connected to the tail end of the inner rod and comprises a connecting base and a connecting sleeve, the connecting base is fixedly connected to the tail end of the inner rod, a stepping motor is fixedly connected to the upper surface of the connecting base, the connecting sleeve is rotationally connected to the front surface of the connecting base, and a supporting sleeve is movably connected to the interior of the connecting sleeve in an embedded mode. According to the device, the piston rod is guided by the limiting rod, the extension column is driven by stress to move downwards, the multiple contact discs are made to move downwards in an inclined mode, the supporting area of the supporting sleeve is increased, the stability of the supporting sleeve is improved, and the safety of the device is further improved.

Description

Technical Field

[0001] This utility model relates to the field of car blocking technology, specifically a mechanical blocking device for pit maintenance of a home elevator. Background Technology

[0002] Mechanical stopping devices are usually installed on the shaft wall, and their structural dimensions vary with the shaft dimensions. They are used to assist in elevator maintenance. However, existing devices have certain drawbacks. For example, the mechanical stopping device for pit maintenance of a home elevator described in announcement number CN218320109U includes a mounting plate, a buffer bracket, and a rotating frame. The mounting plate and the rotating frame are rotatably connected by a rotating shaft, and the buffer bracket is slidably connected to the rotating frame. The buffer bracket is provided with a positioning component, and the central axis of the rotating shaft is parallel to the central axis of the buffer bracket. The connection between the rotating frame and the mounting plate is provided with a limit pin and a limit bolt.

[0003] The above-mentioned device is highly adjustable, but some home elevators have limited space at the bottom, which does not meet the requirements for vertical placement of the device. In addition, the lack of auxiliary support devices may cause the support to tilt under stress, affecting the safety of the device. Utility Model Content

[0004] The purpose of this utility model is to provide a mechanical blocking device for the maintenance of a home elevator pit, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A mechanical blocking device for pit maintenance of a home elevator includes a mounting plate, a mounting base fixedly connected to the upper surface of the mounting plate, an outer cylinder fixedly connected to the inner surface of the mounting base, and an inner rod movably connected to the inside of the outer cylinder.

[0007] A reversing module is fixedly connected to the end of the inner rod. The reversing module includes a connecting seat and a connecting sleeve. The connecting seat is fixedly connected to the end of the inner rod. A stepper motor is fixedly connected to the upper surface of the connecting seat. The connecting sleeve is rotatably connected to the front surface of the connecting seat.

[0008] The connecting sleeve is internally embedded with a support sleeve, the support sleeve is internally slidably connected with a piston rod, the upper end of the piston rod is fixedly connected with a buffer, the outer surface of the support sleeve is fixedly connected with an airbag, and the outer surface of the support sleeve is fixedly connected with an extension tube.

[0009] Furthermore, the upper surface of the inner rod is threaded with a fastening knob, and the outer surface of the fastening knob contacts the outer cylinder.

[0010] Furthermore, the reversing module also includes a locking bolt, a worm gear, and a second fastening knob. The locking bolt is threaded to the outer surface of the connecting seat and contacts the inner rod. The worm gear is fixedly connected to the outer surface of the connecting sleeve. The output end of the stepper motor is fixedly connected to a worm, which meshes with the worm gear. The second fastening knob is threaded to the outer surface of the connecting sleeve.

[0011] Furthermore, the upper surface of the support sleeve is threaded with an end cap, and the end of the piston rod is fixedly connected with a rubber piston.

[0012] Furthermore, the support sleeve is internally fixedly connected to a limiting rod, and a first spring is nested on the outer surface of the limiting rod. The limiting rod and the piston rod are slidably connected.

[0013] Furthermore, a second airbag is fixedly connected to the outer surface of the extension cylinder, an extension column is slidably connected inside the extension cylinder, a second spring is nested on the outer surface of the extension column, and a contact plate is fixedly connected to the end of the extension column.

[0014] Furthermore, the interior of the support sleeve near the limiting rod is filled with hydraulic oil.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. Manually slide the inner rod outward along the outer cylinder, then rotate the No. 1 fastening knob. Under the push of the thread, one end of the No. 1 fastening knob contacts the inner rod, thus fixing the inner rod and making the position of the support sleeve adjustable. Start the stepper motor. The output end of the stepper motor drives the worm gear to rotate, causing the worm gear to work with the worm wheel to rotate the connecting sleeve, so that the device is in the state shown in the figure, which facilitates contact between the buffer and the car, allowing for mechanical blocking. Manually move the support sleeve downward, and then rotate the No. 2 fastening knob to limit the depth of the support sleeve inserted into the connecting sleeve, improving the adaptability of the device.

[0017] 2. When the car and the buffer come into contact, the piston rod moves downward under force, the rubber piston squeezes the hydraulic oil, the first airbag contracts and the second airbag expands, the limit rod guides the piston rod, the extension column moves downward under force, causing multiple contact plates to move obliquely downward, increasing the support area of ​​the support sleeve, improving the stability of the support sleeve, and further improving the safety of the device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the horizontal structure of this utility model;

[0020] Figure 3This is a schematic diagram of the support sleeve structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the commutation module structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the cross-sectional structure of the support sleeve of this utility model.

[0023] In the diagram: 1. Mounting plate; 101. Mounting base; 102. Outer cylinder; 103. Inner rod; 104. No. 1 fastening knob; 2. Reversing module; 201. Connecting seat; 202. Locking bolt; 203. Connecting sleeve; 204. Worm gear; 205. Stepper motor; 206. Worm; 207. No. 2 fastening knob; 3. Support sleeve; 301. End cap; 302. Piston rod; 303. Rubber piston; 4. Buffer; 5. No. 1 airbag; 6. Limiting rod; 601. No. 1 spring; 602. Extension cylinder; 603. No. 2 airbag; 604. Extension column; 605. No. 2 spring; 606. Contact plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-5 In this embodiment of the utility model, a mechanical blocking device for the pit maintenance of a home elevator includes a mounting plate 1, a mounting base 101 fixedly connected to the upper surface of the mounting plate 1, an outer cylinder 102 fixedly connected to the inner surface of the mounting base 101, and an inner rod 103 movably connected to the inside of the outer cylinder 102.

[0026] A reversing module 2 is fixedly connected to the end of the inner rod 103. The reversing module 2 includes a connecting seat 201 and a connecting sleeve 203. The connecting seat 201 is fixedly connected to the end of the inner rod 103. A stepper motor 205 is fixedly connected to the upper surface of the connecting seat 201. The connecting sleeve 203 is rotatably connected to the front surface of the connecting seat 201.

[0027] A support sleeve 3 is embedded and movably connected inside the connecting sleeve 203. A piston rod 302 is slidably connected inside the support sleeve 3. A buffer 4 is fixedly connected to the upper end of the piston rod 302. An airbag 5 is fixedly connected to the outer surface of the support sleeve 3. An extension cylinder 602 is fixedly connected to the outer surface of the support sleeve 3.

[0028] Specifically, manually slide the inner rod 103 outward along the outer cylinder 102, then rotate the first fastening knob 104. Under the push of the thread, one end of the first fastening knob 104 contacts the inner rod 103, thus fixing the inner rod 103 and making the position of the support sleeve 3 adjustable. Start the stepper motor 205. The output end of the stepper motor 205 drives the worm gear 206 to rotate, causing the worm gear 206 to work with the worm wheel 204 to rotate the connecting sleeve 203, thus positioning the device in the correct position. Figure 1 The state shown facilitates the contact between the buffer 4 and the car, enabling mechanical blocking. The support sleeve 3 is manually moved downwards, and then the second fastening knob 207 is rotated to limit the depth of the support sleeve 3 inserted into the connecting sleeve 203, improving the device's adaptability. When the car and buffer 4 contact, the piston rod 302 is forced downwards, the rubber piston 303 compresses the hydraulic oil, the first airbag 5 contracts, and the second airbag 603 expands. The limiting rod 6 guides the piston rod 302, and the extension column 604 is forced downwards, causing multiple contact discs 606 to move obliquely downwards, increasing the support area of ​​the support sleeve 3 and improving its stability.

[0029] Example 1

[0030] like Figure 1-4 As shown, the upper surface of the inner rod 103 is threaded with a fastening knob 104, and the outer surface of the fastening knob 104 is in contact with the outer cylinder 102.

[0031] In this embodiment, the mounting plate 1 is installed on the elevator shaft wall with the threaded assembly. When the position of the support sleeve 3 needs to be adjusted, the inner rod 103 is manually slid outward along the outer cylinder 102. Then, the first fastening knob 104 is rotated. Under the push of the thread, one end of the first fastening knob 104 contacts the inner rod 103, thus fixing the inner rod 103 and making the position of the support sleeve 3 adjustable, increasing the adaptability of the device.

[0032] like Figure 1-4 As shown, the reversing module 2 also includes a locking bolt 202, a worm gear 204, and a second fastening knob 207. The locking bolt 202 is threadedly connected to the outer surface of the connecting seat 201 and contacts the inner rod 103. The worm gear 204 is fixedly connected to the outer surface of the connecting sleeve 203. The output end of the stepper motor 205 is fixedly connected to a worm 206, which meshes with the worm gear 204. The second fastening knob 207 is threadedly connected to the outer surface of the connecting sleeve 203.

[0033] In this embodiment, at Figure 2In the shown configuration, the device is horizontally positioned with a low overall height, making it convenient for use in home elevators with shallow pits. Starting the stepper motor 205 causes its output to rotate the worm gear 206, which in turn, in conjunction with the worm wheel 204, rotates the connecting sleeve 203, thus bringing the device to its current position. Figure 1 The state shown facilitates the contact between the buffer 4 and the car, enabling mechanical blocking. The support sleeve 3 can be manually moved downwards, and then the second fastening knob 207 can be rotated to limit the depth of the support sleeve 3 inserted into the connecting sleeve 203, thus improving the adaptability of the device.

[0034] Example 2

[0035] Based on Embodiment 1, in order to overcome the problem that it is inconvenient to provide auxiliary support for the support sleeve 3 in Embodiment 1.

[0036] like Figure 1-5 As shown, the upper surface of the support sleeve 3 is threaded with an end cap 301, and the end of the piston rod 302 is fixedly connected with a rubber piston 303.

[0037] In this embodiment, the end cap 301 is connected to the threaded assembly and the support sleeve 3 to guide the movement of the piston rod 302. When the rubber piston 303 moves, it cooperates with the hydraulic oil to squeeze the extension column 604.

[0038] like Figure 1-5 As shown, a limiting rod 6 is fixedly connected inside the support sleeve 3. A first spring 601 is nested on the outer surface of the limiting rod 6. The limiting rod 6 and the piston rod 302 are slidably connected. A second airbag 603 is fixedly connected to the outer surface of the extension cylinder 602. An extension column 604 is slidably connected inside the extension cylinder 602. A second spring 605 is nested on the outer surface of the extension column 604. A contact plate 606 is fixedly connected to the end of the extension column 604. Hydraulic oil is filled inside the support sleeve 3 near the limiting rod 6.

[0039] In this embodiment, when the car and the buffer 4 come into contact, the piston rod 302 moves downward under force, the rubber piston 303 squeezes the hydraulic oil, the first airbag 5 contracts and the second airbag 603 expands, the limiting rod 6 guides the piston rod 302, the extension column 604 moves downward under force, causing multiple contact plates 606 to move obliquely downward, increasing the support area of ​​the support sleeve 3 and improving the stability of the support sleeve 3. When the car rises, the rubber piston 303 rises under the elastic force of the first spring 601, and the extension column 604 retracts under the action of the second spring 605, and the first airbag 5 and the second airbag 603 reset, reducing the space occupied when the device is placed horizontally.

[0040] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0041] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A mechanical blocking device for pit maintenance of a home elevator, comprising a mounting plate (1), wherein a mounting base (101) is fixedly connected to the upper surface of the mounting plate (1), an outer cylinder (102) is fixedly connected to the inner surface of the mounting base (101), and an inner rod (103) is movably connected to the interior of the outer cylinder (102); Its features are, The end of the inner rod (103) is fixedly connected to a reversing module (2), the reversing module (2) comprising: A connecting seat (201) is fixedly connected to the end of the inner rod (103), and a stepper motor (205) is fixedly connected to the upper surface of the connecting seat (201); The connecting sleeve (203) is rotatably connected to the front surface of the connecting seat (201); The connecting sleeve (203) is internally embedded with a support sleeve (3), the support sleeve (3) is internally slidably connected with a piston rod (302), the upper end of the piston rod (302) is fixedly connected with a buffer (4), the outer surface of the support sleeve (3) is fixedly connected with an airbag (5), and the outer surface of the support sleeve (3) is fixedly connected with an extension tube (602).

2. The mechanical blocking device for maintenance of the pit of a home elevator according to claim 1, characterized in that, The upper surface of the inner rod (103) is threaded with a fastening knob (104), and the outer surface of the fastening knob (104) is in contact with the outer cylinder (102).

3. The mechanical blocking device for maintenance of the pit of a home elevator according to claim 1, characterized in that, The commutation module (2) also includes: A locking bolt (202) is threaded onto the outer surface of the connecting seat (201), and the locking bolt (202) is in contact with the inner rod (103); A worm gear (204) is fixedly connected to the outer surface of the connecting sleeve (203). A worm (206) is fixedly connected to the output end of the stepper motor (205). The worm (206) and the worm gear (204) are meshed together. The second fastening knob (207) is threaded onto the outer surface of the connecting sleeve (203).

4. The mechanical blocking device for maintenance of the pit of a home elevator according to claim 1, characterized in that, The upper surface of the support sleeve (3) is threaded with an end cap (301), and the end of the piston rod (302) is fixedly connected with a rubber piston (303).

5. The mechanical blocking device for maintenance of the pit of a home elevator according to claim 1, characterized in that, The support sleeve (3) is internally fixedly connected to a limiting rod (6), and a first spring (601) is nested on the outer surface of the limiting rod (6). The limiting rod (6) and the piston rod (302) are slidably connected.

6. The mechanical blocking device for maintenance of the pit of a home elevator according to claim 1, characterized in that, The outer surface of the extension tube (602) is fixedly connected to a second airbag (603), the inside of the extension tube (602) is slidably connected to an extension column (604), the outer surface of the extension column (604) is nested with a second spring (605), and the end of the extension column (604) is fixedly connected to a contact plate (606).

7. The mechanical blocking device for maintenance of the pit of a home elevator according to claim 6, characterized in that, The inside of the support sleeve (3) near the limiting rod (6) is filled with hydraulic oil.

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