Simple and convenient energy consumption type buffer with wide application range

Abstract

The utility model discloses a simple and convenient energy consumption type buffer with a wide application range, which comprises a bottom plate, an outer cylinder arranged at the top of the bottom plate, an oil guide column arranged in the outer cylinder, an inner cylinder connected with the top of the inner side of the outer cylinder in a sliding manner, a lower sealing cover arranged at the bottom of the inner cylinder in a sliding manner, and an upper sealing cover arranged at the top of the inner cylinder, the center of the upper sealing cover is provided with an oil nozzle assembly, the top of the upper sealing cover is provided with a spring gland, the spring gland is provided with a receding groove corresponding to the oil nozzle assembly, the top of the oil nozzle assembly is arranged in the receding groove, the bottom of the spring gland is provided with a reset spring, and the free end of the reset spring is arranged on the bottom plate. An electrical switch beating rod is installed on the outer side of the spring gland, an electrical switch installation base is installed on the portion, on the lower side of the electrical switch beating rod, of the bottom plate, an electrical switch is installed in the electrical switch installation base, and the bottom of the electrical switch beating rod makes contact with the electrical switch.

Description

Technical Field

[0001] The utility model belongs to the technical field of household elevator buffers, and in particular relates to a simple and widely applicable energy-consuming buffer. Background Art

[0002] With the improvement of people's living standards, modern people pay more attention to the improvement of their quality of life. The first thing that comes to mind when improving the quality of life is food, clothing, housing and transportation. Villas, as high-end residences, have always been loved by modern people. Many villas are equipped with elevators, and elevators are equipped with buffers. The existing buffers have complex structures, poor impact energy absorption effects, large rebound force, insufficient strength, and insufficient safety, which makes the buffers easily cause secondary damage to the relatively fragile elevator structure. This buffer has major problems and is not safe enough. Therefore, a simple, widely applicable energy-consuming buffer is urgently needed to solve the above problems. Utility Model Content

[0003] In view of the problems raised by the above background technology, the purpose of the utility model is to provide a simple and widely applicable energy-consuming buffer.

[0004] In order to achieve the above technical purpose, the technical solution adopted by the utility model is as follows:

[0005] A simple and widely applicable energy-consuming buffer comprises a bottom plate, an outer cylinder is installed on the top of the bottom plate, an oil guide column is arranged in the outer cylinder, the bottom of the oil guide column is fixedly installed at the top center of the bottom plate, an inner cylinder is slidably connected to the inner top of the outer cylinder, a lower cover is installed at the bottom of the inner cylinder, the lower cover is slidably arranged on the oil guide column, an upper cover is installed on the top of the inner cylinder, an oil nozzle assembly is installed at the center of the upper cover, a spring pressure cover is installed on the top of the upper cover, and the spring pressure cover is provided with an air avoidance groove at the position corresponding to the oil nozzle assembly The top of the oil nozzle assembly is arranged in the air avoidance groove, the bottom of the spring pressure cover is installed with a return spring, the free end of the return spring is installed on the bottom plate, the outer side of the spring pressure cover is installed with an electrical switch rod, the bottom plate is installed with an electrical switch mounting seat on the lower side of the electrical switch rod, an electrical switch is installed in the electrical switch mounting seat, the electrical switch mounting seat is provided with a guide groove at the corresponding electrical switch rod, the electrical switch rod is slidably arranged in the guide groove, and the bottom of the electrical switch rod is in contact with the electrical switch.

[0006] It is further defined that the oil nozzle assembly includes an oil plug, the oil plug is installed in the upper cover by thread locking, an oil sealing nail is installed in the oil plug, the oil sealing nail is connected to a conical spring, and the free end of the conical spring is arranged on the top of the oil plug. Such a structural design prevents oil leakage from the inner cylinder.

[0007] It is further defined that a first oil plug sealing ring is installed between the oil plug and the upper cover, and a second oil plug sealing ring is installed between the oil sealing nail and the oil plug. Such a structural design improves the sealing effect.

[0008] It is further defined that a sealing groove is provided on the upper side of the inner part of the outer cylinder, and an outer cylinder sealing ring is installed in the sealing groove. Such a structural design improves the sealing effect of the connection.

[0009] It is further defined that a buffer rubber is installed on the top of the spring pressure cover, and bolts are installed on both sides of the buffer rubber, and the lower end of the bolts penetrates the spring pressure cover and is locked in the upper cover. Such a structural design has a protective effect on the spring pressure cover.

[0010] The beneficial effects of the utility model are as follows: the utility model has a simple and reasonable structure, and adopts a double buffering form of a return spring and an outer cylinder and an inner cylinder in cooperation with hydraulic oil, which reduces the pressure borne by the hydraulic oil and the return spring respectively, makes the outer cylinder and the inner cylinder smaller in volume, and reduces the height of the buffer accordingly. The return spring uses the outer cylinder and the inner cylinder as a guide, which reduces the space, so that it absorbs impact energy well, has small rebound force, high strength, and its service life is extended, and safety is improved. It is suitable for elevators with larger loads and faster speeds. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention can be further described by the non-limiting embodiments given in the accompanying drawings;

[0012] Figure 1 This is a schematic structural diagram of a simple and widely applicable energy-dissipating buffer according to an embodiment of the utility model;

[0013] Figure 2 This is a schematic cross-sectional structure diagram of a simple and widely applicable energy-dissipating buffer according to an embodiment of the utility model;

[0014] Figure 3 This is a schematic diagram of the enlarged structure of point A of a simple and widely applicable energy-dissipating buffer according to an embodiment of the utility model;

[0015] The main component symbols are described as follows:

[0016] Base plate 1, outer cylinder 2, oil guide column 3, inner cylinder 4, lower cover 5, upper cover 6, oil nozzle assembly 7, spring pressure cover 8, air avoidance groove 9, return spring 10, electrical switch lever 11, electrical switch mounting seat 12, electrical switch 13, oil plug 14, oil sealing nail 15, conical spring 16, first oil plug sealing ring 17, second oil plug sealing ring 18, sealing groove 19, outer cylinder sealing ring 20, buffer rubber 21, bolt 22. DETAILED DESCRIPTION

[0017] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Embodiment 1, as Figure 1 and Figure 2 As shown, a simple and widely applicable energy-consuming buffer is provided, wherein an outer cylinder 2 is installed on the top of a bottom plate 1, an oil guide column 3 is arranged inside the outer cylinder 2, the bottom of the oil guide column 3 is fixedly installed at the top center of the bottom plate 1, an inner cylinder 4 is slidably connected to the inner top of the outer cylinder 2, a lower cover 5 is installed at the bottom of the inner cylinder 4, the lower cover 5 is slidably arranged on the oil guide column 3, an upper cover 6 is installed on the top of the inner cylinder 4, an oil nozzle assembly 7 is installed at the center of the upper cover 6, a spring pressure cover 8 is installed on the top of the upper cover 6, and the spring pressure cover 8 is provided with an air avoidance groove 9 at the position corresponding to the oil nozzle assembly 7, and the oil nozzle assembly 7 The top is arranged in the air avoidance groove 9, the bottom of the spring pressure cover 8 is installed with a return spring 10, the free end of the return spring 10 is installed on the bottom plate 1, the outer side of the spring pressure cover 8 is installed with an electrical switch rod 11, the bottom plate 1 is installed with an electrical switch mounting seat 12 on the lower side of the electrical switch rod 11, an electrical switch 13 is installed in the electrical switch mounting seat 12, the electrical switch mounting seat 12 is provided with a guide groove at the corresponding electrical switch rod 11, the electrical switch rod 11 is slidably arranged in the guide groove, and the bottom of the electrical switch rod 11 is in contact with the electrical switch 13.

[0019] In this embodiment, during installation, the bottom plate 1 is driven onto a cement pier or iron frame fixed at the bottom pit of the elevator shaft by means of a bursting screw, and the electrical switch 13 is connected to the elevator safety circuit for use. During use, when the elevator car falls downward and contacts the spring pressure cover 8, the spring pressure cover 8 pushes the upper cover 6, and the upper cover 6 pushes the inner cylinder 4, so that the inner cylinder 4 drives the lower cover 5 to move downward along the oil guide column 3. The spring pressure cover 8 squeezes the reset spring 10, and a large force is generated by the reset spring 10 to prevent the car from falling. At the same time, when the buffer is triggered, the hydraulic oil in the inner cylinder 4 passes through the oil guide column 3. 3 flows into the inner cylinder 4. During the flow, the hydraulic oil is subject to the resistance generated by the oil guide column 3 and the lower cover 5. The resistance exerts a reaction force on the lower cover 5. The reaction force can be transmitted to the inner cylinder 4 through the lower cover 5, and the inner cylinder 4 is transmitted to the upper cover 6, and the upper cover 6 is transmitted to the spring pressure cover 8, thereby achieving the purpose of slowing down the downward movement of the car. When the spring pressure cover 8 moves downward, it will synchronously push the electric switch rod 11 to move downward along the electric switch mounting seat 12. When the electric switch rod 11 contacts and triggers the electric switch 13, the electric switch 13 can cut off the safety circuit of the elevator.

[0020] The electrical switch lever 11 is installed on one side of the spring pressure cover 8 by means of a screw and a nut.

[0021] Embodiment 2, as Figure 3As shown, this embodiment adds the following structure on the basis of embodiment 1, the oil nozzle assembly 7 includes an oil plug 14, the oil plug 14 is installed in the upper cover 6 by thread locking, an oil sealing nail 15 is installed in the oil plug 14, the oil sealing nail 15 is connected to a conical spring 16, and the free end of the conical spring 16 is set on the top of the oil plug 14.

[0022] In this embodiment, when in use, the hydraulic oil entering into the inner cylinder 4 can be prevented from leaking from the oil plug 14 , and the internal hydraulic oil can also be replaced and cleaned through the oil plug 14 .

[0023] Embodiment 3, as Figure 3 As shown, this embodiment adds the following structure on the basis of embodiment 2: a first oil plug sealing ring 17 is installed between the oil plug 14 and the upper cover 6 , and a second oil plug sealing ring 18 is installed between the oil sealing nail 15 and the oil plug 14 .

[0024] In this embodiment, when in use, the first oil plug sealing ring 17 and the second oil plug sealing ring 18 further enhance the sealing effect to prevent oil leakage.

[0025] Embodiment 4, as Figure 2 As shown, this embodiment adds the following structure on the basis of embodiment 1: a sealing groove 19 is provided on the upper side of the inner part of the outer cylinder 2, and an outer cylinder sealing ring 20 is installed in the sealing groove 19.

[0026] In this embodiment, by providing the outer cylinder sealing ring 20, the outer cylinder sealing ring 20 can prevent leakage even when the inner cylinder 4 moves, thereby preventing the hydraulic oil from leaking and affecting the buffering effect.

[0027] Embodiment 5, as Figure 2 As shown, this embodiment adds the following structure on the basis of embodiment 1: a buffer rubber 21 is also installed on the top of the spring pressure cover 8, and bolts 22 are installed on both sides of the buffer rubber 21. The lower end of the bolt 22 passes through the spring pressure cover 8 and is locked in the upper cover 6.

[0028] In this embodiment, when in use, when the elevator car falls downward, it will first contact the buffer rubber 21, and the buffer rubber 21 will transfer the impact force received to the spring pressure cover 8, thereby reducing the damage to the spring pressure cover 8 caused by the elevator car falling.

[0029] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A simple and widely applicable energy-dissipating buffer, characterized in that: The invention comprises a bottom plate (1), an outer cylinder (2) is installed on the top of the bottom plate (1), an oil guide column (3) is arranged inside the outer cylinder (2), the bottom of the oil guide column (3) is fixedly installed at the top center of the bottom plate (1), the inner top of the outer cylinder (2) is slidably connected with an inner cylinder (4), a lower cover (5) is installed at the bottom of the inner cylinder (4), the lower cover (5) is slidably arranged on the oil guide column (3), an upper cover (6) is installed on the top of the inner cylinder (4), an oil nozzle assembly (7) is installed at the center of the upper cover (6), a spring pressure cover (8) is installed on the top of the upper cover (6), the spring pressure cover (8) is provided with an air avoidance groove (9) at the position corresponding to the oil nozzle assembly (7), and the oil nozzle assembly ( 7) is arranged in the avoidance groove (9), a return spring (10) is installed at the bottom of the spring pressure cover (8), the free end of the return spring (10) is installed on the bottom plate (1), an electrical switch rod (11) is installed on the outer side of the spring pressure cover (8), an electrical switch mounting seat (12) is installed on the bottom side of the electrical switch rod (11), an electrical switch (13) is installed in the electrical switch mounting seat (12), the electrical switch mounting seat (12) is provided with a guide groove at a position corresponding to the electrical switch rod (11), the electrical switch rod (11) is slidably arranged in the guide groove, and the bottom of the electrical switch rod (11) is in contact with the electrical switch (13).

2. A simple and widely applicable energy-dissipating buffer according to claim 1, characterized in that: The oil nozzle assembly (7) comprises an oil plug (14), which is installed in the upper cover (6) by thread locking, and an oil seal nail (15) is installed in the oil plug (14), and the oil seal nail (15) is connected to a conical spring (16), and the free end of the conical spring (16) is arranged on the top of the oil plug (14).

3. A simple and widely applicable energy-dissipating buffer according to claim 2, characterized in that: A first oil plug sealing ring (17) is installed between the oil plug (14) and the upper cover (6), and a second oil plug sealing ring (18) is installed between the oil sealing nail (15) and the oil plug (14).

4. A simple and widely applicable energy-dissipating buffer according to claim 3, characterized in that: A sealing groove (19) is provided on the upper inner side of the outer cylinder (2), and an outer cylinder sealing ring (20) is installed in the sealing groove (19).

5. A simple and widely applicable energy-dissipating buffer according to claim 4, characterized in that: A buffer rubber (21) is also installed on the top of the spring pressure cover (8), and bolts (22) are installed on both sides of the buffer rubber (21). The lower end of the bolt (22) passes through the spring pressure cover (8) and is locked in the upper cover (6).

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