Car bottom bracket without machine room

Abstract

The car bottom bracket without the machine room relates to the technical field of elevators and comprises a damping mechanism, the damping mechanism comprises a mounting plate, a connecting piece is arranged at the bottom of the mounting plate, the connecting piece is connected with a supporting roller, the outer surface of the supporting roller is sleeved with a damping air bag, and a telescopic air bag is fixedly mounted at the top of the damping air bag; a connecting pipe fixedly communicates between the telescopic air bag and the damping air bag. Through the arranged damping mechanism, the damping air bag is extruded to achieve damping when falling and touching the ground, effective buffering is achieved when the elevator car falls and touches the ground, the influence of vibration on the elevator structure and passengers is remarkably reduced, and the riding comfort is improved; and in the process, air in the damping air bag enters the telescopic air bag through the connecting pipe so that the telescopic air bag can bulge, then the telescopic air bag stores the air exhausted when the damping air bag is extruded, and the risk that the damping air bag bursts due to excessive extrusion under the extreme working condition is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, and more specifically, to a machine-roomless car bottom bracket. Background Art

[0002] With the acceleration of the urbanization process and the continuous development of building technology, machine-roomless elevators, as important means of transportation in modern high-rise buildings, have received increasing attention in terms of their design and application. Compared with traditional machine-room elevators, machine-roomless elevators not only save valuable building space but also reduce construction costs and improve the flexibility of building design. However, the particularity of the structural design of machine-roomless elevators, especially the shock absorption design at the bottom of the car, has become one of the key factors restricting the improvement of their performance.

[0003] The traditional shock absorption design for the car bottom of machine-roomless elevators often uses simple shock absorption elements such as springs or rubber pads. These elements have poor shock absorption effects when dealing with complex working conditions. Especially when encountering strong impacts or vibrations, they are likely to cause damage to the car and even affect the overall safety and stability of the elevator. Therefore, we have made improvements in this regard and proposed a machine-roomless car bottom bracket. Summary of the Invention

[0004] The purpose of the utility model is to address the problem of poor shock absorption effect at the bottom of the car of traditional machine-roomless elevators currently existing.

[0005] In order to achieve the above-mentioned invention purpose, the utility model provides a machine-roomless car bottom bracket to improve the above problems.

[0006] Specifically, this application is as follows:

[0007] A machine-roomless car bottom bracket includes a shock absorption mechanism. The shock absorption mechanism includes a mounting plate. A connecting piece is arranged at the bottom of the mounting plate. The connecting piece is connected with a support roller. A shock absorption airbag is sleeved on the outer surface of the support roller. A telescopic airbag is fixedly installed at the top of the shock absorption airbag. A connecting pipe is fixedly communicated between the telescopic airbag and the shock absorption airbag.

[0008] As a preferred technical solution of this application, a plurality of first shock absorption springs are fixedly installed in the shock absorption airbag.

[0009] As a preferred technical solution of this application, a protective pad is fixedly connected to the bottom of the shock absorption airbag, and the protective pad is used for protecting the bottom of the shock absorption airbag.

[0010] As a preferred technical solution of this application, the connecting piece includes two connecting frames respectively installed on both sides of the bottom of the mounting plate. A first connecting shaft is fixedly connected between the two connecting frames. Two connecting plates are sleeved on the outer surface of the first connecting shaft. A second connecting shaft is fixedly connected between the two connecting plates. The support roller is sleeved on the outer surface of the second connecting shaft.

[0011] As a preferred technical solution of the present application, a buffer member is provided between the two connecting frames.

[0012] As a preferred technical solution of the present application, the buffer member includes a support frame fixedly installed between the two connecting frames, and a plurality of threaded rods are inserted through the support frame.

[0013] As a preferred technical solution of the present application, a third connecting shaft is fixedly connected between the two connecting plates, and a connecting ring is fixedly connected to the bottom end of the threaded rod, and the connecting ring is sleeved on the outer surface of the third connecting shaft.

[0014] As a preferred technical solution of the present application, a limiting disc is sleeved on the outer surface of the threaded rod, and a nut is threadedly connected to the outer surface of the threaded rod above the limiting disc.

[0015] As a preferred technical solution of the present application, a second shock-absorbing spring is sleeved on the outer surface of the threaded rod between the support frame and the limiting disc, and both ends of the second shock-absorbing spring are in contact with the limiting disc and the support frame respectively.

[0016] As a preferred technical solution of the present application, the number of the shock-absorbing mechanisms is two, and a plurality of reinforcing plates are provided between the two shock-absorbing mechanisms, and the ends of the reinforcing plates are fixedly connected to the connecting frames.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] In the solution of the present application:

[0019] In order to solve the problem of poor shock-absorbing effect of the bottom of the car of a machine-roomless elevator in the prior art, in the present application, through the provided shock-absorbing mechanism, the shock-absorbing airbag is squeezed when it falls to the bottom to achieve shock absorption, realizing effective buffering when the elevator car falls to the bottom, significantly reducing the impact of vibration on the elevator structure and passengers, improving the riding comfort, and during this process, the gas in the shock-absorbing airbag enters the telescopic airbag through the connecting pipe to make the telescopic airbag bulge, and further enabling the telescopic airbag to store the gas discharged when the shock-absorbing airbag is squeezed, effectively avoiding the risk of the shock-absorbing airbag bursting due to excessive squeezing under extreme working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of a machine-roomless car bottom bracket provided by the present application;

[0021] Figure 2 It is a schematic bottom view structural diagram of a machine-roomless car bottom bracket provided by the present application;

[0022] Figure 3 It is a schematic cross-sectional structural diagram of a shock-absorbing airbag of a machine-roomless car bottom bracket provided by the present application;

[0023] Figure 4 Schematic structural diagram of the second shock-absorbing spring of the machine-roomless car bottom bracket provided by the present application;

[0024] Figure 5 For the machine-roomless car bottom bracket provided by the present application Figure 4 Bottom-up structural diagram;

[0025] Figure 6 Schematic structural diagram of the reinforcement plate of the machine-roomless car bottom bracket provided by the present application.

[0026] Reference numerals in the figure:

[0027] 1. Shock-absorbing mechanism; 101. Mounting plate; 102. Connecting frame; 103. First connecting shaft; 104. Connecting plate; 105. Second connecting shaft; 106. Support roller; 107. Shock-absorbing airbag; 108. Telescopic airbag; 109. Connecting pipe; 110. Protective pad; 111. First shock-absorbing spring; 112. Support frame; 113. Threaded rod; 114. Connecting ring; 115. Third connecting shaft; 116. Limiting disc; 117. Nut; 118. Second shock-absorbing spring; 119. Mounting hole; 2. Reinforcement plate. Detailed implementation manners

[0028] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0029] As recorded in the background art, the traditional shock-absorbing design of the machine-roomless elevator car bottom often uses simple shock-absorbing elements such as springs or rubber pads. These elements have poor shock-absorbing effects when dealing with complex working conditions. Especially when encountering strong impacts or vibrations, it is easy to cause damage to the car, and even affect the overall safety and stability of the elevator.

[0030] To solve this technical problem, the present invention provides a machine-roomless car bottom bracket.

[0031] Specifically, please refer to Figures 1 - 5 , the machine-roomless car bottom bracket specifically includes:

[0032] The shock absorption mechanism 1, the shock absorption mechanism 1 includes a mounting plate 101, a connecting member is provided at the bottom of the mounting plate 101, the connecting member is connected to a support roller 106, a shock absorption airbag 107 is sleeved on the outer surface of the support roller 106, a telescopic airbag 108 is fixedly installed at the top of the shock absorption airbag 107, and a connecting pipe 109 is fixedly connected and communicated between the telescopic airbag 108 and the shock absorption airbag 107.

[0033] The machine-roomless car bottom bracket provided by the present utility model, through the arranged shock absorption mechanism 1, when the shock absorption airbag 107 touches the bottom during falling, it is squeezed to achieve shock absorption, realizing effective buffering when the elevator car touches the bottom, significantly reducing the influence of vibration on the elevator structure and passengers, improving the riding comfort, and during this process, the gas in the shock absorption airbag 107 enters the telescopic airbag 108 through the connecting pipe 109 to make the telescopic airbag 108 bulge, and further enabling the telescopic airbag 108 to store the gas discharged when the shock absorption airbag 107 is squeezed, effectively avoiding the risk of the shock absorption airbag 107 bursting due to excessive squeezing under extreme working conditions.

[0034] In order to enable the personnel in the technical field to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings.

[0035] It should be noted that, without conflict, the embodiments in the present utility model and the features and technical solutions in the embodiments can be combined with each other.

[0036] It should be noted that: similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0037] Example 1, please refer to Figures 1 - 5, a machine-roomless car bottom bracket, including a shock-absorbing mechanism 1. The shock-absorbing mechanism 1 includes a mounting plate 101. A connecting piece is provided at the bottom of the mounting plate 101. The connecting piece is connected with a support roller 106. A shock-absorbing airbag 107 is sleeved on the outer surface of the support roller 106. A telescopic airbag 108 is fixedly installed at the top of the shock-absorbing airbag 107. A connecting pipe 109 is fixedly connected and communicated between the telescopic airbag 108 and the shock-absorbing airbag 107. In this application, through the arranged shock-absorbing mechanism 1, the shock-absorbing airbag 107 is squeezed when it touches the bottom during falling to achieve shock absorption, realizing effective buffering when the elevator car touches the bottom, significantly reducing the impact of vibration on the elevator structure and passengers, improving the riding comfort. And during this process, the gas in the shock-absorbing airbag 107 enters the telescopic airbag 108 through the connecting pipe 109 to make the telescopic airbag 108 bulge, and then the telescopic airbag 108 stores the gas discharged when the shock-absorbing airbag 107 is squeezed, effectively avoiding the risk of the shock-absorbing airbag 107 bursting due to excessive squeezing under extreme working conditions. A plurality of mounting holes 119 are provided on the mounting plate 101, and the mounting holes 119 are used for the installation of the mounting plate 101.

[0038] Further, as Figure 3 shown, a plurality of first shock-absorbing springs 111 are fixedly installed in the shock-absorbing airbag 107. The first shock-absorbing springs 111 can push the shock-absorbing airbag 107 to expand after the car rises, so that the gas stored in the telescopic airbag 108 flows back into the shock-absorbing airbag 107 through the connecting pipe 109. And the first shock-absorbing springs 111 are arranged around the support roller 106, and the number of the first shock-absorbing springs 111 below the support roller 106 is the largest. Such a setting makes the first shock-absorbing springs 111 below the support roller 106 also play a buffering role.

[0039] Further, as Figure 1 and Figure 2 shown, a protective pad 110 is fixedly connected to the bottom of the shock-absorbing airbag 107. The protective pad 110 is used for the protection of the bottom of the shock-absorbing airbag 107, reducing the situation of the shock-absorbing airbag 107 being damaged when touching the bottom during the car's descent. And the protective pad 110 also plays a counterweight role, making the shock-absorbing airbag 107 keep in a correct position, so that the protective pad 110 is always located below the shock-absorbing airbag 107. The protective pad 110 is made of rubber.

[0040] Further, as Figure 1 and Figure 2As shown in the figure, the connecting piece includes two connecting brackets 102 respectively installed on both sides of the bottom of the mounting plate 101. A first connecting shaft 103 is fixedly connected between the two connecting brackets 102. Two connecting plates 104 are sleeved on the outer surface of the first connecting shaft 103. A second connecting shaft 105 is fixedly connected between the two connecting plates 104. The supporting roller 106 is sleeved on the outer surface of the second connecting shaft 105. Through the mutual cooperation of the connecting brackets 102, the first connecting shaft 103, the connecting plates 104 and the second connecting shaft 105, the mounting plate 101 and the supporting roller 106 can be connected together.

[0041] Embodiment 2 further optimizes the machine-roomless car bottom bracket provided in Embodiment 1. Specifically, as Figure 1 、 Figure 2 、 Figure 4 and Figure 5 shown, a buffer is provided between the two connecting brackets 102, and the buffer can buffer the further part of the car.

[0042] Furthermore, as Figure 3 and Figure 4 shown, the buffer includes a support frame 112 fixedly installed between the two connecting brackets 102. A number of threaded rods 113 are inserted and connected on the support frame 112, and holes for the threaded rods 113 to pass through are provided on the support frame 112.

[0043] Furthermore, as Figure 1 、 Figure 2 、 Figure 4 and Figure 5 shown, a third connecting shaft 115 is fixedly connected between the two connecting plates 104. A connecting ring 114 is fixedly connected to the bottom end of the threaded rod 113, and the connecting ring 114 is sleeved on the outer surface of the third connecting shaft 115. Through the third connecting shaft 115 and the connecting ring 114, a number of threaded rods 113 can be connected together.

[0044] Furthermore, as Figure 4 shown, a limiting disc 116 is sleeved on the outer surface of the threaded rod 113, and a nut 117 is threadedly connected to the outer surface of the threaded rod 113 above the limiting disc 116.

[0045] Furthermore, as Figure 3 and Figure 4 shown, a second shock-absorbing spring 118 is sleeved on the outer surface of the threaded rod 113 between the support frame 112 and the limiting disc 116. Both ends of the second shock-absorbing spring 118 are in contact with the limiting disc 116 and the support frame 112 respectively. During the process of the third connecting shaft 115 driving the connecting ring 114 to descend, the second shock-absorbing spring 118 is compressed to generate a buffering force to realize the buffering of the car.

[0046] Embodiment 3 further optimizes the machine - room - less car bottom bracket provided in Embodiment 1 or 2. Specifically, as Figure 1 , Figure 2 and Figure 6 shown, the number of shock - absorbing mechanisms 1 is two. A number of reinforcing plates 2 are arranged between the two shock - absorbing mechanisms 1. The end of the reinforcing plate 2 is fixedly connected to the connecting frame 102. The cross - section of the reinforcing plate 2 is W - shaped. The two shock - absorbing mechanisms 1 are connected together by the reinforcing plate 2.

[0047] The using process of the machine - room - less car bottom bracket provided by the present utility model is as follows:

[0048] The mounting plate 101 is mounted to the bottom of the car through bolts passing through the mounting holes 119. When the car descends, the protective pad 110 touches the ground, and the shock - absorbing airbag 107 and the first shock - absorbing spring 111 are compressed to generate shock - absorbing force to achieve shock absorption. During this process, the gas in the shock - absorbing airbag 107 enters the telescopic airbag 108 through the connecting pipe 109, causing the telescopic airbag 108 to bulge. Furthermore, the telescopic airbag 108 stores the gas discharged when the shock - absorbing airbag 107 is compressed, effectively avoiding the risk of the shock - absorbing airbag 107 bursting due to excessive compression under extreme working conditions. At the same time, the connecting plate 104 rotates around the first connecting shaft 103. During the rotation of the connecting plate 104, the third connecting shaft 115 moves downward. The third connecting shaft 115 pulls the threaded rod 113 downward through the connecting ring 114. During the downward movement of the threaded rod 113, the second shock - absorbing spring 118 is compressed by the limiting disc 116, and the second shock - absorbing spring 118 is compressed to generate buffering force to buffer the car.

[0049] When the car ascends, the first shock - absorbing spring 111 resets and pushes the shock - absorbing airbag 107 to expand. The gas stored in the telescopic airbag 108 flows back into the shock - absorbing airbag 107 through the connecting pipe 109, and the second shock - absorbing spring 118 expands and resets.

[0050] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium. It can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0051] Obviously, the embodiments described above are only a part of the embodiments of the present utility model, rather than all embodiments. The preferred embodiments of the present utility model are shown in the accompanying drawings, but they do not limit the patent scope of the present utility model. The present utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present utility model more thorough and comprehensive. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or perform equivalent replacements for some of the technical features. Any equivalent structure made by using the content of the specification and drawings of the present utility model, directly or indirectly applied in other related technical fields, is equally within the scope of the patent protection of the present utility model.

Claims

1. A machine room-less car bottom bracket, characterized in that: The invention comprises a shock absorbing mechanism (1), wherein the shock absorbing mechanism (1) comprises a mounting plate (101), a connecting piece is arranged at the bottom of the mounting plate (101), the connecting piece is connected to a supporting roller (106), a shock absorbing airbag (107) is sleeved on the outer surface of the supporting roller (106), a telescopic airbag (108) is fixedly mounted on the top of the shock absorbing airbag (107), and a connecting pipe (109) is fixedly connected between the telescopic airbag (108) and the shock absorbing airbag (107).

2. The machine room-less car bottom bracket according to claim 1, characterized in that: A plurality of first shock absorbing springs (111) are fixedly installed in the shock absorbing airbag (107).

3. The machine room-less car bottom bracket according to claim 2, characterized in that: A protection pad (110) is fixedly connected to the bottom of the shock-absorbing airbag (107), and the protection pad (110) is used to protect the bottom of the shock-absorbing airbag (107).

4. The machine room-less car bottom bracket according to claim 3, characterized in that: The connecting member comprises two connecting frames (102) respectively mounted on two sides of the bottom of the mounting plate (101); a first connecting shaft (103) is fixedly connected between the two connecting frames (102); two connecting plates (104) are sleeved on the outer surface of the first connecting shaft (103); a second connecting shaft (105) is fixedly connected between the two connecting plates (104); and the supporting roller (106) is sleeved on the outer surface of the second connecting shaft (105).

5. The machine room-less car bottom bracket according to claim 4, characterized in that: A buffer is provided between the two connecting frames (102).

6. The machine room-less car bottom bracket according to claim 5, characterized in that: The buffer component comprises a support frame (112) fixedly mounted between two connecting frames (102), and a plurality of threaded rods (113) are inserted and connected to the support frame (112).

7. The machine room-less car bottom bracket according to claim 6, characterized in that: A third connecting shaft (115) is fixedly connected between the two connecting plates (104), a connecting ring (114) is fixedly connected to the bottom end of the threaded rod (113), and the connecting ring (114) is sleeved on the outer surface of the third connecting shaft (115).

8. The machine room-less car bottom bracket according to claim 7, characterized in that: The outer surface of the threaded rod (113) is sleeved with a limiting disk (116), and the outer surface of the threaded rod (113) is threadedly connected to a nut (117) located above the limiting disk (116).

9. The machine room-less car bottom bracket according to claim 8, characterized in that: The outer surface of the threaded rod (113) is sleeved with a second shock absorbing spring (118) located between the support frame (112) and the limiting plate (116), and the two ends of the second shock absorbing spring (118) are in contact with the limiting plate (116) and the support frame (112) respectively.

10. The machine room-less car bottom bracket according to claim 9, characterized in that: The number of the shock absorbing mechanisms (1) is two, and a plurality of reinforcing plates (2) are arranged between the two shock absorbing mechanisms (1), and the ends of the reinforcing plates (2) are fixedly connected to the connecting frame (102).

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