Construction hoist and its connection system

Abstract

The application belongs to the technical field of engineering construction equipment, and particularly relates to a construction hoist and a connecting system thereof. The connecting system comprises a buffer connecting device, a safety hanging plate and a safety hook. The buffer connecting device is used for connecting a lifting driving device and a cage system of the construction hoist in the vertical direction. The safety hanging plate is formed with a hanging plate hole, and the safety hook is longitudinally inserted with the safety hanging plate. One of the safety hanging plate and the safety hook is used for being mounted on the lifting driving device, and the other is used for being mounted on the cage system. The buffer connecting device is the main part for connecting the lifting driving device and the cage system, and the safety hook and the safety hanging plate are auxiliary parts. In other words, when the buffer connecting device is damaged, the safety hook is hung on the safety hanging plate to connect the cage system and the lifting driving device, so as to avoid the separation of the cage system and the lifting driving device and cause a safety accident, thereby improving the connection reliability between the cage system and the lifting driving device.

Description

Technical Field

[0001] This application belongs to the technical field of construction equipment, and specifically relates to a construction hoist and its connection system. Background Technology

[0002] Construction hoists are essential specialized equipment for transporting personnel and materials to higher levels on construction sites. A construction hoist consists of a guide rail section, a drive section, and a cage section. The drive section moves along the guide rails to raise and lower the cage section. A reliable connection between the cage section and the drive section is necessary to ensure sufficient safety for the construction hoist. In existing technology, the cage section and drive section use a single-point connection. However, significant vibrations during cage movement or overloading due to operational errors can damage this connection, resulting in low reliability. Utility Model Content

[0003] The purpose of this application is to provide a construction hoist and its connection system, which aims to improve the reliability of the connection between the cage part and the drive part of the construction hoist.

[0004] To achieve the above objectives, this application provides a connection system for a construction hoist, comprising: A buffer connection device is used to vertically connect the lifting drive device and cage system of a construction hoist. Safety mounting plate, with mounting holes; The safety hook is inserted into the safety mounting plate longitudinally. One of the safety mounting plate and the safety hook is used to be installed on the lifting drive device, and the other is used to be installed on the cage system.

[0005] In some embodiments, the safety hook includes a horizontal hook portion and a vertical hook portion connected to each other. One end of the horizontal hook portion is connected to the vertical hook portion, and the other end is connected to the lifting drive device or the cage system. The horizontal hook portion is inserted into the safety hanging plate along the longitudinal direction, and the vertical hook portion is limited to the safety hanging plate along the longitudinal direction.

[0006] In some embodiments, the vertical hole wall of the hanging plate hole and the horizontal hook portion are arranged at a vertical interval.

[0007] In some embodiments, the connection system further includes: The cage ear plate is used for fixed connection with the cage system; A weighing sensor pin is threaded through the cage ear plate and the buffer connection device. The weighing sensor pin is used to detect the weight of the cage system and communicates with the lifting drive device.

[0008] In some embodiments, the connection system further includes: A lifting drive ear plate is used to be fixedly connected to the lifting drive device; A lifting drive connecting pin passes through the lifting drive ear plate and the buffer connecting device, and the lifting drive connecting pin is perpendicular to the weighing sensor pin.

[0009] In some embodiments, the number of cage ear plates is multiple and the multiple cage ear plates are parallel to each other.

[0010] In some embodiments, the number of lifting drive ear plates is multiple, and the multiple lifting drive ear plates are parallel to each other.

[0011] In some embodiments, the number of safety hooks is two and the two safety hooks are arranged laterally at intervals, and the number of safety hanging plates is two and the two safety hanging plates are respectively arranged opposite to the two safety hooks.

[0012] In some embodiments, the buffer connection is arranged between the two safety hooks.

[0013] In some embodiments, the number of the buffer connection devices is two, and the two buffer connection devices are respectively located outside the two safety hooks.

[0014] Another aspect of this application provides a construction hoist, including the connection system for the construction hoist as described above.

[0015] The construction hoist and its connection system provided in this application have the following beneficial effects through the above technical solution: The buffer connection device vertically connects the lifting drive device and the cage system of the construction hoist, enabling the lifting drive device to drive the cage system to rise and fall, thereby fulfilling the function of carrying people and goods. In the event of a breakage of the buffer connection device, the safety hook will engage with the safety hanger to prevent the cage system from separating from the lifting drive device, thereby improving the reliability of the connection between the cage system and the lifting drive device, and thus improving the safety of the construction hoist.

[0016] Other features and advantages of the embodiments of this application will be described in detail in the following detailed description section. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the embodiments of this application and form part of the specification. They are used together with the following detailed description to explain the embodiments of this application, but do not constitute a limitation on the embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without any inventive effort. In the drawings: Figure 1 This is a schematic diagram showing the connection between the lifting drive device and the buffer connection device according to a specific embodiment of this application; Figure 2 This is a schematic diagram of the safety hook and cage lugs on the cage system according to a specific embodiment of this application; Figure 3 This is an assembly diagram of the lifting drive device and the cage system according to a specific embodiment of this application; Figure 4 for Figure 3 An enlarged schematic diagram of part A in the middle; Figure 5 This is a schematic diagram of the structure of the buffer connection device according to the first embodiment of this application; Figure 6 This is a partial exploded view of the buffer connection device according to the first embodiment of this application; Figure 7 This is a schematic diagram of the structure of the buffer connection device according to the second embodiment of this application.

[0018] Explanation of reference numerals in the attached figures 400. Lifting drive device; 422. Safety mounting plate; 4221. Mounting plate hole; 423. Lifting drive connecting pin; 4231. Lifting drive ear plate; 424. Weighing sensor pin; 421. Buffer connection device; 4211. Drive end ear plate; 4212. Buffer connection screw; 4213. Buffer connection buckle; 4214. Buffer connection nut; 4215. Buffer connection headless screw; 4216. Shock-absorbing rubber pad; 4217. Cage end ear plate; 4218. Drive end connecting plate; 4219. Cage end connecting plate; 42110. Snap-fit ​​groove; 42111. Drive end connecting pipe; 42112. Lower buffer connection disc spring; 42113. Upper buffer connection disc spring; 500. Cage system; 538. Safety hook; 5381. Horizontal hook; 5382. Vertical hook; 539. Cage ear plate. Detailed Implementation

[0019] The specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0020] The terminology of the construction hoist and its connection system according to this application is described below with reference to the accompanying drawings.

[0021] like Figures 1 to 3As shown, a specific embodiment of this application provides a connection system for a construction hoist, including a buffer connection device 421, a safety mounting plate 422, and a safety hook 538. The buffer connection device 421 is used to vertically connect the lifting drive device 400 and the cage system 500 of the construction hoist. The safety mounting plate 422 has a mounting hole 4221, and the safety hook 538 is inserted into the safety mounting plate 422 in a longitudinal direction. One of the safety mounting plate 422 and the safety hook 538 is used to be installed on the lifting drive device 400, and the other is used to be installed on the cage system 500.

[0022] The buffer connection device 421 is the main part connecting the lifting drive device 400 and the cage system 500. The safety hook 538 and the safety hanging plate 422 are auxiliary parts. In other words, when the buffer connection device 421 is damaged, the safety hook 538 will be hooked on the safety hanging plate 422 to connect the cage system 500 and the lifting drive device 400, so as to avoid the cage system 500 and the lifting drive device 400 from separating and causing a safety accident. This improves the connection reliability between the cage system 500 and the lifting drive device 400, and thus improves the safety of the construction hoist.

[0023] In a specific embodiment of this application, the safety hook 538 is installed on the cage system 500, the safety hanging plate 422 is installed on the lifting drive device 400, and the working condition of the buffer connection device 421 connecting the lifting drive device 400 and the cage system 500 is the normal working condition. The working condition of the safety hook 538 and the safety hanging plate 422 connecting the lifting drive device 400 and the cage system 500 is the special working condition.

[0024] like Figure 3 and Figure 4 As shown, in some embodiments, the safety hook 538 includes a horizontal hook portion 5381 and a vertical hook portion 5382 connected to each other. The horizontal hook portion 5381 extends longitudinally, with one end connected to the vertical hook portion 5382 and the other end connected to the cage system 500. The horizontal hook portion 5381 is inserted into the safety hanging plate 422 longitudinally, and the vertical hook portion 5382 is longitudinally limited to the safety hanging plate 422. By setting the horizontal hook portion 5381, the safety hook 538 and the safety hanging plate 422 are limited vertically under special working conditions. At the same time, by setting the vertical hook portion 5382, the safety hook 538 and the safety hanging plate 422 are prevented from separating longitudinally under normal working conditions, thus preventing the safety hook 538 and the safety hanging plate 422 from failing to perform their connection function under special working conditions, thereby improving the reliability of the connection system.

[0025] Furthermore, the vertical hole wall of the hanging plate hole 4221 and the horizontal hook part 5381 are arranged vertically at intervals. In other words, under normal working conditions, the safety hook 538 and the safety hanging plate 422 do not serve as a connection, so as to avoid the safety hook 538 and the safety hanging plate 422 being worn or damaged under normal working conditions, thereby improving the reliability of the safety hook 538 and the safety hanging plate 422.

[0026] In some embodiments, there are two safety hooks 538 arranged laterally at intervals, and two safety mounting plates 422 arranged opposite to the two safety hooks 538, in order to enhance the load-bearing capacity of the connection system under special working conditions, thereby improving the safety of the connection system.

[0027] Specifically, the number of buffer connecting devices 421 is one, arranged between the two safety hooks 538; or, the number of buffer connecting devices 421 is two, with each buffer connecting device 421 located outside the two safety hooks 538. The choice between these two configurations depends on actual load-bearing requirements and production costs.

[0028] In some embodiments, the connection system includes a cage lug plate 539 and a weighing sensor pin 424. The cage lug plate 539 is fixedly connected to the cage system 500, and the weighing sensor pin 424 passes through the cage lug plate 539 and the buffer connection device 421. The weighing sensor pin 424 is used to detect the weight of the cage system 500 and is communicatively connected to the lifting drive device 400. Detecting the weight of the cage system 500 using the weighing sensor pin 424 ensures that the weight within the cage system 500 does not exceed the maximum load-bearing capacity of the connection system, thereby guaranteeing the reliability of the connection system.

[0029] In some embodiments, the connection system further includes a lifting drive ear plate 4231 and a lifting drive connecting pin 423. The lifting drive ear plate 4231 is used to be fixedly connected to the lifting drive device 400. The lifting drive connecting pin 423 passes through the lifting drive ear plate 4231 and the buffer connecting device 421. The lifting drive connecting pin 423 and the weighing sensor pin 424 are perpendicular to each other to form a cross structure, thereby reducing the influence of torque.

[0030] In some embodiments, there are multiple cage ear plates 539, and the multiple cage ear plates 539 are parallel to each other to enhance the connection strength between the buffer connection device 421 and the cage system 500.

[0031] In some embodiments, there are multiple lifting drive ear plates 4231 and the multiple lifting drive ear plates 4231 are parallel to each other to enhance the connection strength between the buffer connection device 421 and the lifting drive device 400.

[0032] like Figure 5As shown in the illustration, a specific embodiment of this application also provides a buffer connection device 421, including a cage end connector and a drive end connector connected to each other. A shock-absorbing material is provided between the cage end connector and the drive end connector. The drive end connector is used to connect to the lifting drive device 400 of the construction hoist, and the cage end connector is used to connect to the cage system 500 of the construction hoist. By providing a shock-absorbing material between the drive end connector and the cage end connector, the vibration transmitted from the lifting drive device 400 to the cage system 500 is reduced, thereby improving the stability of the cage system 500 during the lifting process.

[0033] like Figure 5 As shown, in the first embodiment of this application, the drive-end connector includes a drive-end connecting plate 4218 and a drive-end ear plate 4211 disposed on the drive-end connecting plate 4218. The cage-end connector includes a cage-end connecting plate 4219 and a cage-end ear plate 4217 disposed on the cage-end connecting plate 4219. The cage-end connecting plate 4219 and the drive-end connecting plate 4218 are parallel to each other. The shock-absorbing material component includes a shock-absorbing rubber pad 4216 sandwiched between the cage-end connecting plate 4219 and the drive-end connecting plate 4218. By providing the drive-end connecting plate 4218, the cage-end connecting plate 4219, and the shock-absorbing rubber pad 4216, the contact area between the drive-end connector and the shock-absorbing material component, and between the cage-end connector and the shock-absorbing material component, is increased, thereby enhancing the shock absorption effect.

[0034] In some embodiments, the buffer connection device 421 further includes a buffer connection screw 4212 and a buffer connection nut 4214. The buffer connection screw 4212 passes through the drive end connection plate 4218, the shock-absorbing rubber pad 4216, and the cage end connection plate 4219. The buffer connection nut 4214 is threaded onto the buffer connection screw 4212 and engages with the drive end connection plate 4218. The head of the buffer connection screw 4212 engages with the cage end connection plate 4219, so that the drive end connection plate 4218 and the cage end connection plate 4219 clamp the shock-absorbing rubber pad 4216, thereby enhancing the shock absorption effect.

[0035] Furthermore, the buffer connection device 421 also includes an upper buffer connection disc spring 42113 and a lower buffer connection disc spring 42112. The upper buffer connection disc spring 42113 is sleeved on the buffer connection screw 4212 and located between the buffer connection nut 4214 and the drive end connection plate 4218. The lower buffer connection disc spring 42112 is sleeved on the buffer connection screw 4212 and located between the head of the buffer connection screw 4212 and the cage end connection plate 4219. The vibration transmitted from the lifting drive device 400 to the buffer connection device 421 is reduced by the self-compression of the added upper buffer connection disc spring 42113 and lower buffer connection disc spring 42112, thereby further reducing the vibration transmitted to the cage system 500. At the same time, the heads of the buffer connection nut 4214 and the buffer connection screw 4212 are used to prevent the upper buffer connection disc spring 42113 and lower buffer connection disc spring 42112 from loosening, thereby ensuring the shock absorption effect of the upper buffer connection disc spring 42113 and lower buffer connection disc spring 42112.

[0036] like Figure 6 As shown, in some embodiments, the buffer connection device 421 further includes a buffer connection buckle 4213 locked on the buffer connection screw 4212. The buffer connection buckle 4213 is located outside the buffer connection nut 4214 and engages with the buffer connection nut 4214 for limiting.

[0037] Specifically, the buffer connection buckle 4213 is engaged on the side of the buffer connection nut 4214 away from the head of the buffer connection screw 4212, so as to prevent the buffer connection nut 4214 from being loosened in the direction away from the head of the buffer connection screw 4212 due to the long-term action of the upper buffer connection disc spring 42113, thereby ensuring the shock absorption effect of the upper buffer connection disc spring 42113 and the lower buffer connection disc spring 42112.

[0038] Furthermore, a snap-fit ​​groove 42110 is formed on the buffer connecting screw 4212, and the buffer connecting buckle 4213 snaps into the snap-fit ​​groove 42110. The locking effect of the buffer connecting buckle 4213 on the buffer connecting nut 4214 is further strengthened by the limiting cooperation between the groove wall of the snap-fit ​​groove 42110 and the buffer connecting buckle 4213 along the axial direction of the buffer connecting screw 4212, thereby preventing the buffer connecting nut 4214 from loosening in the direction away from the head of the buffer connecting screw 4212.

[0039] like Figure 7As shown, in the second embodiment of this application, the drive end connector includes a drive end connecting pipe 42111, and the cage end connector includes a buffer connecting headless screw 4215, a cage end connecting plate 4219, a cage end ear plate 4217, and a buffer connecting nut 4214. The buffer connecting headless screw 4215 and the cage end ear plate 4217 are respectively disposed on both sides of the cage end connecting plate 4219. One end of the buffer connecting headless screw 4215 is connected to the cage end connecting plate 4219, and the other end passes through the drive end connecting pipe 42111. The buffer connecting nut... 4214 is threaded onto the other end of the headless bolt 4215 of the buffer connection and is limited to the drive end connecting pipe 42111; the shock-absorbing material components include an upper buffer connecting disc spring 42113 and a lower buffer connecting disc spring 42112, which are sleeved on the headless bolt 4215 of the buffer connection. The upper buffer connecting disc spring 42113 is located between the drive end connecting pipe 42111 and the buffer connecting nut 4214, and the lower buffer connecting disc spring 42112 is located between the drive end connecting pipe 42111 and the cage end connecting plate 4219. The vibration transmitted from the lifting drive device 400 to the buffer connection device 421 is reduced by the self-compression of the upper buffer connection disc spring 42113 and the lower buffer connection disc spring 42112, thereby further reducing the vibration transmitted to the cage system 500. At the same time, the upper buffer connection disc spring 42113 and the lower buffer connection disc spring 42112 are prevented from loosening by the buffer connection nut 4214, thus ensuring the shock absorption effect of the upper buffer connection disc spring 42113 and the lower buffer connection disc spring 42112.

[0040] In some embodiments, the buffer connection device 421 further includes a buffer connection latch 4213 that is locked onto the buffer connection headless screw 4215. The buffer connection latch 4213 is located outside the buffer connection nut 4214 and engages with the buffer connection nut 4214 for limiting.

[0041] Specifically, the buffer connection buckle 4213 is engaged on the side of the buffer connection nut 4214 away from the cage end connecting plate 4219, so as to prevent the buffer connection nut 4214 from being loosened in the direction away from the cage end connecting plate 4219 due to the long-term action of the upper buffer connection disc spring 42113, thereby ensuring the shock absorption effect of the upper buffer connection disc spring 42113 and the lower buffer connection disc spring 42112.

[0042] Furthermore, a snap-fit ​​groove 42110 is formed on the headless screw 4215 of the buffer connection, and the buffer connection buckle 4213 is snapped into the snap-fit ​​groove 42110. The locking effect of the buffer connection buckle 4213 on the buffer connection nut 4214 is further strengthened by the limiting cooperation between the groove wall of the snap-fit ​​groove 42110 and the buffer connection buckle 4213 along the axial direction of the headless screw 4215 of the buffer connection, thereby preventing the buffer connection nut 4214 from loosening in the direction away from the connecting plate 4219 at the end of the cage.

[0043] The first and second embodiments of this application provide two buffer connection devices 421, and the two buffer connection devices 421 are arranged symmetrically, thereby increasing the number of connection points between the lifting drive device 400 and the cage system 500, and thus enhancing the shock absorption effect.

[0044] A specific embodiment of this application also provides a construction hoist, including the connection system described above. Since the construction hoist employs all embodiments of the above-described connection system, it possesses all the beneficial effects of all embodiments of the connection system.

[0045] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0046] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0047] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0048] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A connection system for a construction hoist, characterized in that, include: A buffer connection device (421) is used to vertically connect the lifting drive device (400) and the cage system (500) of the construction hoist. Safety mounting plate (422), having mounting holes (4221); and, The safety hook (538) is longitudinally inserted into the safety mounting plate (422); One of the safety mounting plate (422) and the safety hook (538) is used to be installed on the lifting drive device (400), and the other is used to be installed on the cage system (500).

2. The connection system according to claim 1, characterized in that, The safety hook (538) includes a horizontal hook portion (5381) and a vertical hook portion (5382) connected to each other. One end of the horizontal hook portion (5381) is connected to the vertical hook portion (5382), and the other end is connected to the lifting drive device (400) or the cage system (500). The horizontal hook portion (5381) is inserted into the safety hanging plate (422) along the longitudinal direction, and the vertical hook portion (5382) is limited to the safety hanging plate (422) along the longitudinal direction.

3. The connection system according to claim 2, characterized in that, The vertical hole wall of the hanging plate hole (4221) and the horizontal hook (5381) are arranged at intervals along the vertical direction.

4. The connection system according to claim 1, characterized in that, The connection system also includes: The cage ear plate (539) is used for fixed connection with the cage system (500); A weighing sensor pin (424) is threaded through the cage ear plate (539) and the buffer connection device (421). The weighing sensor pin (424) is used to detect the weight of the cage system (500) and communicate with the lifting drive device (400).

5. The connection system according to claim 4, characterized in that, The connection system also includes: The lifting drive ear plate (4231) is used to be fixedly connected to the lifting drive device (400); The lifting drive connecting pin (423) passes through the lifting drive ear plate (4231) and the buffer connecting device (421), and the lifting drive connecting pin (423) and the weighing sensor pin (424) are perpendicular to each other.

6. The connection system according to claim 5, characterized in that, The number of the cage ear plates (539) is multiple and the multiple cage ear plates (539) are parallel to each other; And / or, the number of the lifting drive ear plates (4231) is multiple and the multiple lifting drive ear plates (4231) are parallel to each other.

7. The connection system according to claim 1, characterized in that, The number of safety hooks (538) is two and the two safety hooks (538) are arranged laterally at intervals. The number of safety hanging plates (422) is two and the two safety hanging plates (422) are respectively arranged opposite to the two safety hooks (538).

8. The connection system according to claim 7, characterized in that, The buffer connection device (421) is arranged between the two safety hooks (538).

9. The connection system according to claim 7, characterized in that, The number of the buffer connecting devices (421) is two, and the two buffer connecting devices (421) are located on the outside of the two safety hooks (538).

10. A construction hoist, characterized in that, Includes the connection system for the construction hoist according to any one of claims 1 to 9.

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