Elevator driving structure without hoistway design

Abstract

The utility model is suitable for the field of elevator transmission structures, and provides an elevator driving structure without a hoistway design, which comprises at least one guide transmission rod which is longitudinally arranged and of which the end part is fixed with a floor slab, and a lift car which moves along the guide transmission rod, a gear driving structure is arranged between the guide transmission rod and the lift car; the gear driving structure comprises a first gear installed at the output end of a driver and a threaded sleeve which is in transmission connection with the first gear and is fixedly connected with a third gear on the outer wall. Transmission threads are arranged on the outer wall of the guide transmission rod and are in threaded connection with a threaded sleeve; an auxiliary guide rail for assisting in guiding the lift car is arranged on one side of the guide transmission rod; the elevator car is provided with a guide piece, and the connecting end of the guide piece extends into the guide rail and moves along with the guide rail, so that field installation of the household elevator is converted into installation in a factory, the installation quality of products is improved, the requirement for the ability of field installation personnel is lowered, and the installation cost of the household elevator is reduced. And the home elevator is gradually changed to the home product direction.

Description

Technical Field

[0001] The utility model relates to the field of elevator drive structures, in particular to an elevator drive structure with a well - less design. Background Art

[0002] A screw elevator is an elevator system driven by a screw drive system. In traditional screw elevators, the drive is located at the upper or lower end of the screw. By rotating the screw, a nut on the elevator car is driven, and the nut drives the elevator car to move up and down. When installing the above - mentioned drive, space for installing a driver for rotating the drive screw needs to be planned in the house, that is, an elevator shaft.

[0003] Before the elevator leaves the factory, the entire drive system and the elevator car are independent components, not in a combined state. This cannot guarantee the installation accuracy, and at the same time increases the difficulty of on - site installation, and cannot ensure the final product quality.

[0004] In summary, it is obvious that the existing technology has inconveniences and defects in actual use, so it is necessary to improve. Content of the Utility Model

[0005] Aiming at the above - mentioned defects, the purpose of the utility model is to provide an elevator drive structure with a well - less design. This structure facilitates the conversion of the on - site installation of home elevators into in - factory installation, improves the installation quality of the product, reduces the requirements for on - site installation personnel, and reduces the installation cost of home elevators. It gradually transforms home elevators towards the direction of household products.

[0006] To achieve the above purpose, the utility model provides an elevator drive structure with a well - less design, including at least one guiding drive rod longitudinally arranged and fixed at its end to the floor slab, and a car moving along the guiding drive rod; a gear drive structure is arranged between the guiding drive rod and the car; the gear drive structure includes a first gear installed at the output end of a driver and a screw sleeve that is in transmission connection with the first gear and has a third gear fixedly connected to its outer wall; the outer wall of the guiding drive rod is provided with a transmission thread and is screwed with the screw sleeve; an auxiliary guide rail for assisting in guiding the car is arranged on one side of the guiding drive rod; the car is equipped with a guiding member, and its connecting end extends into the guide rail and moves along with it.

[0007] According to the elevator drive structure with a well - less design of the utility model, the gear drive structure is arranged at the top or bottom of the car.

[0008] According to the elevator drive structure with a well - less design of the utility model, a space for accommodating the gear drive structure is arranged inside the car, and the gear drive structure is arranged in the space.

[0009] According to the elevator drive structure with a shaftless design of the present utility model, an external housing for installing a gear drive structure is provided outside the top or bottom of the car, and the gear drive structure is installed inside the external housing.

[0010] According to the elevator drive structure with a shaftless design of the present utility model, there are two sets of guiding transmission rods, and the two sets of guiding transmission rods are symmetrically arranged with respect to the central vertical plane of the car.

[0011] According to the elevator drive structure with a shaftless design of the present utility model, there are three sets of guiding transmission rods, and they are arranged at equal intervals around the car.

[0012] According to the elevator drive structure with a shaftless design of the present utility model, there are four sets of guiding transmission rods, and they are arranged at equal intervals around the car.

[0013] According to the elevator drive structure with a shaftless design of the present utility model, the guiding member is a guiding wheel structure, which includes a guiding bracket connected to the side wall of the car and a guiding roller rotatably installed on the guiding bracket and attached to one side wall of the guide rail.

[0014] According to the elevator drive structure with a shaftless design of the present utility model, an auxiliary braking structure is provided on the car; the auxiliary braking structure includes a rotator provided on the car or the guiding bracket and a brake block installed at the output end of the expander; during braking, the swing rod of the rotator drives the brake block to be stuck into the gap between the guiding roller and the other side wall of the guide rail away from the guiding roller.

[0015] The utility model provides an elevator drive structure with a shaftless design, which includes at least one guiding transmission rod longitudinally arranged and fixed at its end to the floor slab, and a car moving along the guiding transmission rod. Among them, the length of the guiding transmission rod depends on the lifting height of the car; a gear drive structure is arranged between the guiding transmission rod and the car. The gear drive structure includes a first gear installed at the output end of a driver (the driver usually adopts a driving motor), a screw sleeve that is in transmission connection with the first gear and has a third gear fixedly connected to its outer wall (it is a sleeve structure with a transmission thread arranged on its inner wall and is installed on the side wall of the car. Specifically, the screw sleeve can only rotate relative to the side wall of the car and cannot move axially. For example, the two can be connected through a bearing, with the outer ring of the bearing fixedly connected to the side wall of the car and the inner ring fixedly connected to the screw sleeve); the outer wall of the guiding transmission rod is provided with a transmission thread and is screwed with the screw sleeve. When the car is lifting or lowering, the driver further drives the screw sleeve to rotate through the gear drive structure, and the rotating screw sleeve drives the car to move through a threaded transmission with the guiding transmission rod (the rotating screw sleeve cooperates with the thread to move on the fixed guiding transmission rod). The utility model converts the on-site installation work of the household elevator into in-factory installation, improves the installation quality of the product, reduces the requirement for the ability of on-site installers, reduces the installation cost of the household elevator, and gradually transforms the household elevator towards the direction of household products. Description of the Drawings

[0016] Figure 1 is a schematic structural view of the utility model with a single guiding transmission rod after removing part of the outer shell;

[0017] Figure 2 is a schematic external structural view of the utility model with a single guiding transmission rod;

[0018] Figure 3 is a schematic structural view of the gear drive structure of the utility model at the bottom of the car with a single guiding transmission rod;

[0019] Figure 4 is a top view of the gear drive structure of the utility model with a single guiding transmission rod;

[0020] Figure 5 is a schematic structural view of the gear drive structure of the utility model with two guiding transmission rods;

[0021] Figure 6 is a top view of the gear drive structure of the utility model in another state with the distribution of two guiding transmission rods;

[0022] Figure 7 is a top view of the gear drive structure of the utility model with three guiding transmission rods;

[0023] Figure 8 is a top view of the gear drive structure of the utility model with four guiding transmission rods;

[0024] Figure 9 It is a schematic diagram of the gear drive structure of the present utility model located at the bottom outside the car;

[0025] Figure 10 is Figure 1 an enlarged view of part A in

[0026] Figure 11 a working schematic diagram of the auxiliary braking structure;

[0027] In the figure, 1 - guiding transmission rod, 2 - car, 3 - first gear, 4 - third gear, 5 - screw sleeve, 21 - guiding bracket, 22 - guiding roller, 6 - external housing, 7 - synchronous pulley, 23 - rotator, 231 - swing rod, 24 - brake block. Specific embodiments

[0028] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the following further details the present utility model in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0029] Refer to Figure 1 and Figure 2 , the present utility model provides an elevator drive structure with a shaftless design. The elevator drive structure with a shaftless design includes at least one guiding transmission rod 1 longitudinally arranged and fixed at the end with the floor slab, and a car 2 moving along the guiding transmission rod 1. Among them, the length of the guiding transmission rod 1 depends on the lifting height of the car 2; a gear drive structure is arranged between the guiding transmission rod 1 and the car 2.

[0030] The gear drive structure includes a first gear 3 installed at the output end of a driver (the driver usually adopts a driving motor), a screw sleeve 5 that is in transmission connection with the first gear 3 and has a third gear 4 fixedly connected to its outer wall (it is a sleeve structure with a transmission thread provided on its inner wall and is installed on the side wall of the car 2. Specifically, the screw sleeve 5 can only rotate relative to the side wall of the car 2 and cannot move axially. For example, the two can be connected through a bearing, the outer ring of the bearing is fixedly connected to the side wall of the car 2, and the inner ring is fixedly connected to the screw sleeve 5); the outer wall of the guiding transmission rod 1 is provided with a transmission thread and is screwed with the screw sleeve 5.

[0031] When the car 2 is lifting or lowering, the driver further drives the screw sleeve 5 to rotate through the driving gear structure, and the rotating screw sleeve 5 has a screw drive effect with the guiding transmission rod 1 (the rotating screw sleeve 5 cooperates with the thread to move on the fixed guiding transmission rod 1), thereby driving the car 2 to move.

[0032] Refer to Figure 1 and Figure 10, an auxiliary guide rail 2 for assisting in guiding the car 2 is provided on one side of the guiding transmission rod 1; a guiding member is installed on the car 2, and its connecting end extends into the guide rail 2 and moves with it. The cooperation between the auxiliary guide rail 2 and the guiding member orients the movement of the car (preventing the car 2 from rotating around the guiding transmission rod 1), achieving stable movement of the car 2. In this embodiment, the guiding member is a guiding wheel structure, which includes a guiding bracket 21 connected to the side wall of the car 2 and a guiding roller 22 rotatably installed on the guiding bracket 21 and fitting against one side wall of the guide rail 2. During the movement of the car 2, the guiding roller 22 rolls while fitting against one side wall of the guide rail 2. The rolling effect of the guiding roller 22 can reduce the friction of the guiding member during movement. Of course, the guiding member can also be a guiding slider.

[0033] See Figure 1 , Figure 2 and Figure 3 , the installation position of the gear drive structure can be set on the top of the car 2 or at the bottom of the car 2.

[0034] See Figure 1 , Figure 2 and Figure 9 , further, on the above basis, the gear drive structure can be installed inside the car 2. Specifically, a space for accommodating the gear drive structure is provided inside the car 2, and the gear drive structure is arranged in the space. Or, the gear drive structure is installed outside the car 2. An external housing 6 for installing the gear drive structure is provided outside the top or bottom of the car 2, and the gear drive structure is installed in the external housing 6.

[0035] In order to optimize the stable transmission effect of the car 2, the guiding transmission rod 1 is divided into the following embodiments according to the quantity;

[0036] In the second embodiment, the difference from the above is that two groups of guiding transmission rods 1 are provided, and the two groups of guiding transmission rods 1 are symmetrically arranged with respect to the central vertical plane of the car 2. The installation position of the guiding transmission rod 1 can be a concentrated offset (the two groups of guiding transmission rods 1 are concentrated on one side), and the two groups of guiding transmission rods 1 form an acute angle with respect to the center of the car 2 ( Figure 5 as shown). When the car 2 is moving, multiple screw sleeves 5 are synchronously driven; or the two groups of guiding transmission rods 1 are arranged on both sides of the car 2, and the two groups of guiding transmission rods 1 form 180° with respect to the center of the car 2 ( Figure 6 as shown). When the car 2 is moving, multiple screw sleeves 5 are synchronously driven,

[0037] See Figure 7, in the third embodiment, the difference from the above is that three sets of guiding transmission rods 1 are provided, which are arranged at equal intervals around the car 2. The three sets of guiding transmission rods 1 form an angle of 120° with respect to the center of the car 2. When the car 2 moves, multiple screw sleeves 5 are synchronously driven.

[0038] See Figure 8 , in the fourth embodiment, the difference from the above is that four sets of guiding transmission rods 1 are provided, which are arranged at equal intervals around the car 2. The four sets of guiding transmission rods 1 form an angle of 90° with respect to the center of the car 2. When the car 2 moves, multiple screw sleeves 5 are synchronously driven.

[0039] It should be noted that the above arrangements of each guiding transmission rod 1 can be combined with different installation positions of the gear drive structure to form new embodiments. However, since it is only a change in position, no detailed description is made.

[0040] To achieve the synchronism of the drive of multiple screw sleeves 5, at least one set of synchronous wheels 7 is also connected between the first gear 3 and the third gear 4 of the gear drive structure, and the synchronous wheels 7 are connected to the third gears 4 of multiple screw sleeves 5.

[0041] See Figure 11 , preferably, an auxiliary braking structure is provided on the car 2 of the present utility model; when the car 2 is in a stopped moving state, the auxiliary braking structure provides an auxiliary braking effect on the car 2 to increase the stability of the stopped state of the car 2.

[0042] The auxiliary braking structure includes a rotator 23 provided on the car 2 or the guiding bracket 21 and a brake block 24 installed at the output end of the expander 23; during braking, the swing rod 231 of the rotator 23 drives the brake block 24 to be stuck into the gap between the guiding roller 22 and the other side wall of the guide rail 2 away from the guiding roller 22. When the braking work of the car 2 is carried out, the rotator 23 drives the swing rod 231 to swing, and the brake block 24 is stuck into the gap between the guiding roller 22 and the other side wall of the guide rail 2 away from the guiding roller 22. If the guiding bracket 21 moves downward, a squeezing force will be generated by the brake block 24. On the one hand, this squeezing force brakes the rotation of the guiding roller 22, and on the other hand, it brakes the movement of the guiding roller 22 relative to the guide rail 2.

[0043] In summary, the present utility model provides an elevator drive structure with a well - less design, including at least one guiding and driving rod longitudinally arranged and fixed to the floor slab at its ends, and a car moving along the guiding and driving rod. Among them, the length of the guiding and driving rod depends on the lifting height of the car; a gear drive structure is arranged between the guiding and driving rod and the car. The gear drive structure includes a first gear installed at the output end of a driver (the driver usually adopts a driving motor), a screw sleeve (which is a sleeve structure with a transmission thread arranged on its inner wall and installed on the side wall of the car. Specifically, the screw sleeve can only rotate relative to the side wall of the car and cannot move axially. For example, the two can be connected through a bearing, with the outer ring of the bearing fixed to the side wall of the car and the inner ring fixed to the screw sleeve); the outer wall of the guiding and driving rod is provided with a transmission thread and is screwed with the screw sleeve. When the car is lifting or lowering, the driver further drives the screw sleeve to rotate through the driving gear structure, and the rotating screw sleeve drives the car to move through a thread transmission effect with the guiding and driving rod (the rotating screw sleeve cooperates with the thread to move on the fixed guiding and driving rod). The present utility model transforms the on - site installation work of home elevators into factory installation, improves the installation quality of products, reduces the skill requirements for on - site installers, and reduces the installation cost of home elevators. It gradually transforms home elevators towards the direction of household products.

[0044] Certainly, the present utility model can also have many other embodiments. Without departing from the spirit and essence of the present utility model, those skilled in the art can make various corresponding changes and deformations according to the present utility model. However, these corresponding changes and deformations should all fall within the protection scope of the appended claims of the present utility model.

Claims

1. An elevator drive structure without a hoistway design, characterized in that: It comprises at least one guide transmission rod which is longitudinally arranged and whose end is fixed to the floor, and a car which moves along the guide transmission rod; a gear drive structure is arranged between the guide transmission rod and the car; The gear drive structure comprises a first gear installed at an output end of a driver, which is in transmission connection with the first gear and a screw sleeve with a third gear fixedly connected to the outer wall; The outer wall of the guide transmission rod is provided with a transmission thread and is threadedly connected with a thread sleeve; An auxiliary guide rail for auxiliary guiding the car is arranged on one side of the guide transmission rod; the car is equipped with a guide member, the connection end of which extends into the guide rail and moves with it.

2. The elevator drive structure without hoistway design according to claim 1, characterized in that: The gear drive structure is arranged on the top or bottom of the car.

3. The elevator drive structure without hoistway design according to claim 2, characterized in that: A space for accommodating the gear driving structure is arranged in the car, and the gear driving structure is arranged in the space.

4. The elevator drive structure without hoistway design according to claim 2, characterized in that: An external shell for installing a gear drive structure is arranged outside the top or bottom of the car, and the gear drive structure is installed in the external shell.

5. The elevator drive structure without hoistway design according to any one of claims 1 to 4, characterized in that: The guide transmission rods are provided in two groups, and the two groups of guide transmission rods are symmetrically arranged relative to the central vertical plane of the car.

6. The elevator drive structure without hoistway design according to any one of claims 1 to 4, characterized in that: The guide transmission rods are provided in three groups, and the guide transmission rods are arranged around the car in evenly spaced rings.

7. The elevator drive structure without hoistway design according to any one of claims 1 to 4, characterized in that: The guide transmission rods are provided in four groups, and the guide transmission rods are arranged around the car in evenly spaced rings.

8. The elevator drive structure without hoistway design according to any one of claims 1 to 4, characterized in that: The guide member is a guide wheel structure, which includes a guide bracket connected to the side wall of the car and a guide roller rotatably mounted on the guide bracket and in contact with one side wall of the guide rail.

9. The elevator driving structure without hoistway design according to claim 8, characterized in that: The car is provided with an auxiliary braking structure; The auxiliary braking structure includes a rotator arranged on the car or the guide bracket and a brake block installed at the output end of the telescope; During braking, the swing rod of the rotator drives the brake block to engage in the gap between the guide roller and the other side wall of the guide rail away from the guide roller.

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