Automatic door opening and closing linkage mechanism of dumb waiter

Abstract

The utility model relates to the technical field of dumb waiters, in particular to an automatic door opening and closing linkage mechanism of a dumb waiter. An automatic door opening and closing linkage mechanism of a dumb waiter comprises a hall upper door component, a lift car upper door component and a lift car motor component. The hall upper door component comprises a gear fixing plate used for being fixed to a hall upper door, the lift car upper door component comprises a rack fixing plate used for being fixed to a lift car door, the lift car motor component comprises an upper fixing plate used for being fixed to an upper cross beam of a door frame, the upper fixing plate is arranged on a motor fixing plate, and a driving motor is installed on the motor fixing plate. According to the design, installation is convenient, use is convenient and fast, automatic door opening and closing of the service lift can be achieved through cooperative work of the hall upper door component, the lift car upper door component and the lift car motor component, the tedious actions of manual door opening and closing of related personnel are omitted, the use requirements of users are met, and the use experience of the service lift is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of cargo elevators, and particularly relates to an automatic door opening and closing linkage mechanism for a cargo elevator. Background Art

[0002] At present, there are two types of elevators on the market. The first type is a large elevator for carrying people and goods, and the second type is a small utility elevator with a carrying capacity of less than 300KG. It can carry sundries and serve food in restaurants, so it is widely used in restaurants and schools. For example, in schools, meals are delivered directly to each floor through a utility elevator, which avoids the phenomenon of students crowding downstairs and queuing in the canteen during meal time. However, when the existing utility elevator is in use, it is operated manually. The user first opens the hall door of the utility elevator, and then opens the car door by hand. Unlike the existing large elevators, the utility elevator does not automatically open and close the door, making it difficult for the utility elevator to meet the needs of users.

[0003] Many small elevator manufacturers have invested a lot of energy in trying to change the original unsatisfactory manual door opening and closing method of the service elevator, so that it can be opened and closed automatically at the same time as the hall door and car door of the large elevator. In this process, many manufacturers can realize the automatic opening and closing of the car door or the hall door alone, but they cannot realize the linkage opening and closing of the car door and the hall door. Because the door opening form of the service elevator is different from that of the large elevator, due to space limitations, the small service elevator generally adopts the middle-divided upward and downward door opening form, while the large elevator adopts the middle-divided left and right side door opening form. Therefore, there is currently no ideal automatic door opening and closing linkage mechanism for small service elevators. Utility Model Content

[0004] The utility model aims to provide a linkage mechanism for automatically opening and closing doors of a goods elevator to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0006] A goods elevator automatic door opening and closing linkage mechanism, characterized by comprising a hall door component, a car door component, and a car motor component;

[0007] The hall door component comprises a gear fixing plate for fixing to the hall door, and a gear is provided on the front side of the gear fixing plate;

[0008] The car upper door component comprises a rack fixing plate, a left rack and a right rack for fixing to the car door, the rack fixing plate is provided with a rotating upper arm and a rotating lower arm arranged in an upper and lower manner, and the middle portion of the rotating upper arm is rotatably connected to the rack fixing plate, the middle portion of the rotating lower arm is rotatably connected to the rack fixing plate, the upper and lower portions of the left rack are rotatably connected to the left side portion of the rotating upper arm and the left side portion of the rotating lower arm respectively, the upper and lower portions of the right rack are rotatably connected to the right side portion of the rotating upper arm and the right side portion of the rotating lower arm respectively, a compression spring positioning sleeve and a synchronous belt connecting piece are provided on one side of the rotating upper arm, and a reset compression spring is provided in the compression spring positioning sleeve;

[0009] The car motor component includes an upper fixing plate for fixing to the upper cross beam of the door frame, the upper fixing plate is arranged on the motor fixing plate, a driving motor is installed on the motor fixing plate, the rotating shaft of the driving motor is connected to the first synchronous belt pulley, a second synchronous belt pulley is arranged above the first synchronous belt pulley, the first synchronous belt pulley and the second synchronous belt pulley are connected by a synchronous belt, a synchronous belt fixing buckle is fixed on the synchronous belt, and the synchronous belt fixing buckle is connected to the synchronous belt connecting piece by a pin shaft.

[0010] Furthermore, the gear fixing plate is provided with a first through hole, a gear center axis passes through the first through hole, the gear is sleeved on the outside of the gear center axis, and a second bolt hole is provided in the middle of the gear center axis, a second bolt is screwed into the second bolt hole. In order to ensure the gear rotation effect, a gear gasket is provided between the gear and the gear fixing plate.

[0011] Furthermore, the rack fixing plate is provided with a second through hole and a third through hole arranged in an upper and lower manner, the second through hole is passed through the central axis of the upper rotating arm, the central axis of the upper rotating arm includes a first head, a first smooth section, and a first screw section connected in sequence, the middle part of the rotating upper arm is provided with a first rotating shaft hole for passing through the first smooth section, and the first screw section is screwed with a first nut; the third through hole is passed through the central axis of the lower rotating arm, the central axis of the lower rotating arm includes a second head, a second smooth section, and a second screw section connected in sequence, the middle part of the rotating lower arm is provided with a second rotating shaft hole for passing through the second smooth section, and the second screw section is screwed with a second nut.

[0012] Furthermore, the upper part of the left rack, the lower part of the left rack, the upper part of the right rack and the lower part of the right rack are all provided with mounting grooves, bearings are provided in the mounting grooves, and the bearings are connected to the third nut, and the left side of the rotating upper arm, the right side of the rotating upper arm, the left side of the rotating lower arm and the right side of the rotating lower arm are all provided with a fourth bolt for screwing the third nut.

[0013] Furthermore, a rack pressure wheel fixing plate is provided on the rack fixing plate, and a left rack pressure wheel for limiting is provided on the rack pressure wheel fixing plate.

[0014] Furthermore, a fourth through hole is provided at the rear of the upper fixing plate, a sixth bolt passes through the fourth through hole, and the sixth bolt also passes through a fifth through hole in the shape of an elongated strip located on the motor fixing plate, and a fourth nut is screwed onto the sixth bolt.

[0015] The beneficial effects of the utility model are: providing an automatic door opening and closing linkage mechanism for a goods elevator, which is easy to install and use, and can realize automatic opening and closing of the door of the goods elevator through the cooperation of the door components on the hall, the door components on the car and the motor components on the car, eliminating the tedious actions of manual opening and closing of the door by relevant personnel, meeting the use needs of users and improving the use experience of the goods elevator.

[0016] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 The utility model is shown in the following figure. Figure 1 ;

[0019] Figure 2 The utility model is shown in the following figure. Figure 2 ;

[0020] Figure 3 A partial structural schematic diagram of the hall door component of the utility model is shown;

[0021] Figure 4 A partial structural exploded schematic diagram of the hall door component of the utility model is shown;

[0022] Figure 5 A partial structural schematic diagram of the upper door component of the car of the utility model is shown;

[0023] Figure 6 A partial structural exploded schematic diagram of the upper door component of the car of the utility model is shown;

[0024] Figure 7 A partial structural schematic diagram of the car motor component of the utility model is shown.

[0025] In the figure: 1. hall door component; 101. gear fixing plate; 102. gear; 103. gear center axis; 104. second bolt; 2. car door component; 201. rack fixing plate; 202. rotating upper arm; 203. rotating lower arm; 204. left rack; 205. right rack; 206. compression spring positioning sleeve; 207. synchronous belt connector; 208. reset compression spring; 209. lower rotating arm center axis; 210. fourth bolt; 211. bearing; 212. rack pressure wheel fixing plate; 213. left rack pressure wheel; 3. car motor component; 301. upper fixing plate; 302. motor fixing plate; 303. drive motor; 304. first synchronous pulley; 305. second synchronous pulley; 306. synchronous belt; 307. synchronous belt fixing buckle; 308. fifth through hole. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] like Figure 1-5As shown, a kind of automatic door opening and closing linkage mechanism of a goods elevator comprises a hall door component 1, a car door component 2, and a car motor component 3; the hall door component 1 comprises a gear fixing plate 101 for fixing to the hall door, and a gear 102 is provided on the front side of the gear fixing plate 101; the car door component 2 comprises a rack fixing plate 201, a left rack 204 and a right rack 205 for fixing to the car door, and a rotating upper arm 202 and a rotating lower arm 203 arranged in an upper and lower manner are provided on the rack fixing plate 201, and the middle part of the rotating upper arm 202 is rotatably connected to the rack fixing plate 201, and the middle part of the rotating lower arm 203 is rotatably connected to the rack fixing plate 201, and the upper and lower parts of the left rack 204 are rotatably connected to the left side part of the rotating upper arm 202 and the left side part of the rotating lower arm 203, respectively, and the upper and lower parts of the right rack 205 are respectively connected to the rotating upper arm 20 2 and the right side of the rotating lower arm 203 are rotatably connected, a compression spring positioning sleeve 206 and a synchronous belt connecting piece 207 are provided on one side of the rotating upper arm 202, and a reset compression spring 208 for pushing the rotating upper arm 202 is provided in the compression spring positioning sleeve 206; the car motor component 3 includes an upper fixing plate 301 for fixing to the upper crossbeam of the door frame, the upper fixing plate 301 is arranged on the motor fixing plate 302, a driving motor 303 is installed on the motor fixing plate 302, a rotating shaft of the driving motor 303 is connected to the first synchronous pulley 304, a second synchronous pulley 305 is provided above the first synchronous pulley 304, the first synchronous pulley 304 and the second synchronous pulley 305 are connected by a synchronous belt 306, a synchronous belt fixing buckle 307 is fixed on the synchronous belt 306, and the synchronous belt fixing buckle 307 is connected to the synchronous belt connecting piece 207 by a pin shaft. This design is easy to install and use. Through the cooperation of the hall door component 1, the car door component 2 and the car motor component 3, the automatic opening and closing of the door of the service elevator can be realized, eliminating the tedious actions of manual opening and closing of the door by relevant personnel, meeting the user's use needs and improving the user experience of the service elevator.

[0028] In order to facilitate the installation of the hall door component 1, a first bolt hole is provided on the gear fixing plate 101, and the gear fixing plate 101 can be fixed to the hall door by screwing a first bolt into the first bolt hole.

[0029] The gear fixing plate 101 is provided with a first through hole, through which the gear central axis 103 passes, the gear 102 is sleeved on the outer side of the gear central axis 103, and a second bolt hole is provided in the middle of the gear central axis 103, in which a second bolt 104 is screwed to fix the gear 102. In order to ensure the rotation effect of the gear, a gear gasket is provided between the gear and the gear fixing plate 101.

[0030] In order to facilitate the installation of the car door component 2, a third bolt hole is provided on the rack fixing plate 201, and the rack fixing plate 201 can be fixed to the car door by screwing a third bolt into the third bolt hole.

[0031] The rack fixing plate 201 is provided with a second through hole and a third through hole arranged in an upper and lower manner, and the upper rotating arm central axis passes through the second through hole, and the upper rotating arm central axis includes a first head, a first smooth section, and a first screw section connected in sequence, and the middle part of the rotating upper arm 202 is provided with a first rotating shaft hole for passing through the first smooth section, and the first screw section is screwed with a first nut; the lower rotating arm central axis 209 is passed through the third through hole, and the lower rotating arm central axis 209 includes a second head, a second smooth section, and a second screw section connected in sequence, and the middle part of the rotating lower arm 203 is provided with a second rotating shaft hole for passing through the second smooth section, and the second nut is screwed with the second screw section, thereby realizing that the middle part of the rotating upper arm 202 is rotatably connected to the rack fixing plate 201, and the middle part of the rotating lower arm 203 is rotatably connected to the rack fixing plate 201.

[0032] The upper part of the left rack 204, the lower part of the left rack 204, the upper part of the right rack 205 and the lower part of the right rack 205 are all provided with installation grooves, in which bearings 211 are provided, and the bearing 211 is connected to the third nut. The left side of the rotating upper arm 202, the right side of the rotating upper arm 202, the left side of the rotating lower arm 203 and the right side of the rotating lower arm 203 are all provided with fourth bolts 210 for screwing the third nut, thereby realizing that the upper and lower parts of the left rack 204 are rotatably connected to the left side of the rotating upper arm 202 and the left side of the rotating lower arm 203 respectively, and the upper and lower parts of the right rack 205 are rotatably connected to the right side of the rotating upper arm 202 and the right side of the rotating lower arm 203 respectively.

[0033] A rack pressure wheel fixing plate 212 is provided on the rack fixing plate 201 , and a left rack pressure wheel 213 for limiting is provided on the rack pressure wheel fixing plate 212 , so as to limit the deflection position of the left rack 204 through the left rack pressure wheel 213 .

[0034] In order to facilitate the fixing of the car motor component 3, a fourth bolt hole is provided at the front of the upper fixing plate 301, and the upper fixing plate 301 can be fixed to the upper cross beam of the door frame by screwing a fifth bolt into the fourth bolt hole.

[0035] A fourth through hole is provided at the rear of the upper fixing plate 301, through which a sixth bolt passes, and the sixth bolt also passes through a fifth through hole 308 which is located on the motor fixing plate 302 and is in the shape of an elongated strip, and a fourth nut is screwed on the sixth bolt, so that the installation height of the upper fixing plate 301 can be changed by adjusting the position of the sixth bolt passing through the fifth through hole 308 to adapt to the upper crossbeam of the freight elevator door frame of different heights.

[0036] When this design is in use, when the goods elevator is in the door-closing state, the car can move freely up and down floors, and the hall door and the car door are not in contact; when the car stops at a designated floor, the drive motor 303 starts to rotate, driving the first synchronous pulley 304 to rotate, and the synchronous belt fixing buckle 307 also moves upward with the synchronous belt 306, and drives the synchronous belt connecting piece 207 to move upward with the help of the pin shaft, and the synchronous belt connecting piece 207 drives the rotating upper arm 202 and the rotating lower arm 203 to move upward at the same time, and driven by the rotating upper arm 202 and the rotating lower arm 203, the right rack 206 moves upward. 05 moves upward, the left rack 204 moves downward, and the distance between the left rack 204 and the right rack 205 gradually decreases until the gear 102 on the front side of the clamping gear fixing plate 101 is clamped. At this time, the hall door and the car door can move upward at the same time and enter the door opening state together. After completing the door opening action, they enter the door closing movement, that is, when the hall door and the car door move to the right position, the two doors do not move, and the drive motor 303 rotates in the opposite direction until the hall door and the car door are in the door closing state, and the drive motor 303 stops running, so that the goods elevator completes a linkage opening and closing action. And because the goods elevator will automatically open the door after reaching the predetermined floor, it serves as a reminder to the relevant personnel that the car has arrived, avoiding the phenomenon that users need to pay attention to whether the goods elevator has arrived, as with traditional goods elevators.

[0037] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A passenger elevator automatic door opening and closing linkage mechanism, characterized in that: Including hall door parts, car door parts, car motor parts; The hall door component comprises a gear fixing plate for fixing to the hall door, and a gear is provided on the front side of the gear fixing plate; The car upper door component comprises a rack fixing plate, a left rack and a right rack for fixing to the car door, the rack fixing plate is provided with a rotating upper arm and a rotating lower arm arranged in an upper and lower manner, and the middle portion of the rotating upper arm is rotatably connected to the rack fixing plate, the middle portion of the rotating lower arm is rotatably connected to the rack fixing plate, the upper and lower portions of the left rack are rotatably connected to the left side portion of the rotating upper arm and the left side portion of the rotating lower arm respectively, the upper and lower portions of the right rack are rotatably connected to the right side portion of the rotating upper arm and the right side portion of the rotating lower arm respectively, a compression spring positioning sleeve and a synchronous belt connecting piece are provided on one side of the rotating upper arm, and a reset compression spring is provided in the compression spring positioning sleeve; The car motor component includes an upper fixing plate for fixing to the upper cross beam of the door frame, the upper fixing plate is arranged on the motor fixing plate, a driving motor is installed on the motor fixing plate, the rotating shaft of the driving motor is connected to the first synchronous belt pulley, a second synchronous belt pulley is arranged above the first synchronous belt pulley, the first synchronous belt pulley and the second synchronous belt pulley are connected by a synchronous belt, a synchronous belt fixing buckle is fixed on the synchronous belt, and the synchronous belt fixing buckle is connected to the synchronous belt connecting piece by a pin shaft.

2. The automatic door opening and closing linkage mechanism of a goods elevator according to claim 1, characterized in that: The gear fixing plate is provided with a first through hole, and a gear center axis passes through the first through hole. The gear is sleeved on the outside of the gear center axis, and a second bolt hole is provided in the middle of the gear center axis. A second bolt is screwed into the second bolt hole. In order to ensure the rotation effect of the gear, a gear gasket is provided between the gear and the gear fixing plate.

3. The automatic door opening and closing linkage mechanism of a goods elevator according to claim 1, characterized in that: The rack fixing plate is provided with a second through hole and a third through hole arranged in an upper and lower manner, the second through hole is passed through the central axis of the upper rotating arm, the central axis of the upper rotating arm includes a first head, a first smooth section, and a first screw section connected in sequence, the middle part of the rotating upper arm is provided with a first rotating shaft hole for passing through the first smooth section, and the first screw section is screwed with a first nut; the third through hole is passed through the central axis of the lower rotating arm, the central axis of the lower rotating arm includes a second head, a second smooth section, and a second screw section connected in sequence, the middle part of the rotating lower arm is provided with a second rotating shaft hole for passing through the second smooth section, and the second nut is screwed with the second screw section.

4. A goods elevator automatic door opening and closing linkage mechanism as claimed in claim 1 or 3, characterized in that: The upper part of the left rack, the lower part of the left rack, the upper part of the right rack and the lower part of the right rack are all provided with mounting grooves, bearings are provided in the mounting grooves, and the bearings are connected to the third nut. The left side of the rotating upper arm, the right side of the rotating upper arm, the left side of the rotating lower arm and the right side of the rotating lower arm are all provided with fourth bolts for screwing the third nut.

5. The automatic door opening and closing linkage mechanism of a goods elevator according to claim 1, characterized in that: The rack fixing plate is provided with a rack pressure wheel fixing plate, and the rack pressure wheel fixing plate is provided with a left rack pressure wheel for limiting.

6. The automatic door opening and closing linkage mechanism of a goods elevator according to claim 1, characterized in that: A fourth through hole is provided at the rear of the upper fixing plate, a sixth bolt passes through the fourth through hole, and the sixth bolt also passes through a fifth through hole in the shape of an elongated strip located on the motor fixing plate, and a fourth nut is screwed onto the sixth bolt.

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