Sensitive elastic guide structure and lifting device
By introducing a sensitive elastic guide structure into the lifting device and using a buffer plate and spring to buffer the position trigger, the problem of damage to the lifting device caused by impact under high load is solved, and a highly sensitive safety anti-impact effect is achieved.
Patent Information
- Application Number
- CN202520085344.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-14
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2035-01-14
AI Technical Summary
Under heavy loads and high speeds, existing lifting devices are prone to damage to limit switches and supports due to gravity and inertia, resulting in overshoot. Traditional methods cannot effectively prevent impacts in small, sensitive, and high-speed equipment.
It adopts a sensitive elastic guiding structure, which uses a buffer plate to compress a spring to contact the position trigger, buffering the impact between the lifting platform and the position trigger. The elastic component and positioning assembly limit the stroke of the buffer plate to prevent overshoot.
It improves feedback sensitivity, effectively prevents impact between the lifting platform and the position trigger, protects the trigger, and avoids equipment damage.
Smart Images
Figure CN223633006U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of ornament lamp lifting device, more specifically, relate to a sensitive elastic guide structure and lifting device. BACKGROUND
[0002] When the lifting device works, the electric appliance is lifted to the upper limit position, and needs to touch the position trigger (industry calls upper switch), the trigger will feed back the position signal to the controller, so that the controller drives the motor to stop working, to prevent the safety hazard that the motor is still working after the electric appliance is lifted to the position. However, in actual application, if the lifting structure is heavy and fast, the limit stopper and its supporting bracket are easily damaged due to the effect of gravity inertia, and the overshoot phenomenon occurs, so that the whole machine is damaged. The current solution is to slow down the machine speed, increase the trigger stroke, and form a buffer distance space, but for the application requirements of small and compact volume, high sensitivity and fast lifting speed, the traditional method cannot meet the demand, and the technical personnel need to find another solution. Therefore, the applicant continues to develop a sensitive elastic guide structure that can prevent impact, to solve the impact between the lifting platform and the position trigger, and also ensure the trigger sensitivity. CONTENT OF THE UTILITY MODEL
[0003] The main purpose of the utility model is to provide a sensitive elastic guide structure and lifting device, which is compressed by the buffer plate after the lifting platform touches the buffer plate, so as to touch the position trigger and achieve the effect of buffering.
[0004] According to the first aspect of the utility model, a sensitive elastic guide structure is provided, which comprises:
[0005] A lifting main body, the lower end of the lifting main body is provided with a first space, the first space is provided with a buffer plate that can be guided to move up and down, a limiting structure that limits the downward stroke of the buffer plate is arranged in the first space, at least one elastic member is arranged between the buffer plate and the lifting main body, and the elastic member comprises a guide column and a spring sleeved on the guide column;
[0006] A position trigger, the position trigger is installed on the lifting main body, and the working end of the position trigger is arranged above the buffer plate after penetrating through the lower end of the lifting main body;
[0007] A shell, the shell is installed at the lower end of the lifting main body, and the shell wraps the first space;
[0008] The positioning assembly comprises an upper limiting block and a lower limiting block arranged on the upper end face of the shell, the upper limiting block is used for limiting the maximum stroke of the upward movement of the buffer plate, the upper limiting block is installed at the top of the first space, and the lower limiting block is used for limiting the maximum stroke of the downward movement of the buffer plate;
[0009] The lifting main body, the buffer plate and the shell are all provided with a central through hole through which a steel wire or a live rope passes.
[0010] In a specific embodiment of the utility model, at least two guide columns are arranged on the shell, and an avoiding space for avoiding the guide columns is arranged on the buffer plate.
[0011] In a specific embodiment of the utility model, an installation plate is arranged above the buffer plate, the installation plate is provided with connecting screws, the connecting screws are connected to the guide columns after passing through the lifting main body, the installation plate is fixed to the upper end of the guide columns, mounting holes are arranged on the installation plate, and the working end of the in-place trigger is arranged above the buffer plate after passing through the lifting main body and the mounting holes.
[0012] In a specific embodiment of the utility model, a threaded section is arranged at the upper end of the guide column, a nut is screwed to the exposed part of the threaded section after the threaded section passes through the lifting main body, a protective rubber sleeve is sleeved on the guide column, and the spring is sleeved on the outer side of the protective rubber sleeve.
[0013] In a specific embodiment of the utility model, the lifting main body, the buffer plate and the shell are all provided with a side through hole through which a steel wire passes.
[0014] According to the second aspect of the utility model, the lifting device is provided, which comprises a lifting table and a sensitive elastic guide structure, a winding wheel and a motor for driving the winding wheel to rotate are installed in the lifting main body, a steel wire is wound in the winding wheel, and the steel wire is connected to the lifting table after passing through the central through hole or the side through hole of the lifting main body, the buffer plate and the shell.
[0015] In a specific embodiment of the utility model, a trigger column is arranged on the lifting table, the upper end of the trigger column can be in contact with the buffer plate, and the outer diameter of the trigger column is smaller than the inner diameter of the central through hole or the side through hole on the shell.
[0016] The technical scheme of the utility model has at least one of the following advantages or beneficial effects: the buffer plate is arranged below the in-place trigger, the lifting table is driven to move upward when the machine winds the steel wire, the buffer plate is compressed after the lifting table collides with the buffer plate, the in-place trigger is collided again, the feedback sensitivity is improved, and the impact between the lifting table and the in-place trigger is effectively prevented. The stroke of the buffer plate is positioned by the positioning assembly, the overshoot is avoided, and the trigger is effectively protected. BRIEF DESCRIPTION OF DRAWINGS
[0017] The utility model will be further described in connection with the drawings and embodiments;
[0018] Fig. 1is a structural schematic view of a sensitive elastic guide structure in an embodiment of the utility model;
[0019] Fig. 2 is a first structural schematic view of a buffer plate in an embodiment of the utility model;
[0020] Fig. 3 is a second structural schematic view of a buffer plate in an embodiment of the utility model;
[0021] Fig. 4 is a structural schematic view of a lifting device in an embodiment of the utility model. DETAILED DESCRIPTION
[0022] The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as a limitation on the utility model.
[0023] In the description of the utility model, it is understood that the orientation description, such as the orientation or position relationship of up, down, front, back, left, right and the like indicated is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the device or element indicated must have a specific orientation, a specific orientation and operation, and therefore cannot be understood as a limitation on the utility model.
[0024] In the description of the utility model, the meaning of several is one or more, and the meaning of multiple is two or more, greater than, less than, more than and the like are not included in the number, above, below, within and the like are included in the number. If the first, the second is described, it is only used for distinguishing the technical features for the purpose, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the sequence of the indicated technical features.
[0025] In addition, the terms "first", "second" are only used for the purpose of description, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more features.
[0026] In the description of the utility model, it needs to explain, unless another explicit provision and limitation, term '' connection '' should do broad sense understanding, for example, can be fixed connection or movable connection, also can be detachable connection or non detachable connection, or integrally connected;Can be mechanical connection, also can be electric connection or can communicate with each other;It can be directly connected, also can be indirectly connected through intermediate medium, can be the communication of two elements internally, indirect communication or the interaction of two elements.
[0027] The following disclosure provides many different implementations or examples to implement different aspects of the utility model.
[0028] Referring to Figs. 1 to 4 As shown in the figure, the lifting device comprises a lifting platform 22 and a sensitive elastic guide structure, the sensitive elastic guide structure comprises,
[0029] The lifting main body 10 is provided with a first space at the lower end, the first space is provided with a buffer plate 11 that can be guided to move up and down, a positioning assembly that limits the downward stroke of the buffer plate 11 is arranged in the first space, at least one elastic member is arranged between the buffer plate 11 and the lifting main body 10, preferably, the number of elastic members is 3, the elastic member comprises a guide column 12 and a spring 14 sleeved on the guide column 12;
[0030] The in-place trigger 18 is installed on the lifting main body 10, and the working end of the in-place trigger 18 is arranged above the buffer plate 11 after penetrating through the lower end of the lifting main body 10.
[0031] The shell 20 is installed at the lower end of the lifting main body 10, and the shell 20 wraps the first space.
[0032] The lifting main body 10, the buffer plate 11 and the shell 20 are all provided with a central through hole 28 through which a steel wire 26 or a power supply lifting rope passes.
[0033] The lifting main body 10 is provided with a winding wheel 25 and a motor 24 for driving the winding wheel 25 to rotate, the steel wire 26 is wound in the winding wheel 25, and the steel wire 26 is connected with the lifting platform 22 after penetrating through the central through hole 28 or the side through hole 29 of the lifting main body 10, the buffer plate 11 and the shell 20.
[0034] Specifically, the motor 24 drives the winding wheel 25 to rotate, the winding wheel 25 winds the steel wire 26, the lifting platform 22 goes up along with the steel wire 26, the buffer plate 11 compresses the spring 14 to touch the in-place trigger 18 after the lifting platform 22 touches the buffer plate 11, the buffering effect is achieved, and the impact between the lifting platform 22 and the in-place trigger 18 is buffered. After the winding wheel 25 releases the steel wire 26, the buffer plate 11 is reset under the action of the spring 14.
[0035] In one embodiment of the utility model, the lifting main body 10, the buffer plate 11 and the shell 20 are all provided with side through holes 29 for the steel wire 26 to pass through. In the double-wire lifting device, the steel wire passes through the side through holes 29 of the lifting main body 10, the buffer plate 11 and the shell 20 to realize the winding of the steel wire by the winding wheel and realize the lifting. In the power cable lifting rope and double-wire lifting device, the power cable lifting rope passes through the center through hole 28 of the lifting main body 10, the buffer plate 11 and the shell 20, and the steel wire passes through the side through hole 29 of the lifting main body 10, the buffer plate 11 and the shell 20.
[0036] In one embodiment of the utility model, the lifting platform 22 is provided with a trigger column 23, the upper end of the trigger column 23 can contact the buffer plate 11, and the outer diameter of the trigger column 23 is smaller than the inner diameter of the center through hole 28 or the side through hole 29 on the shell 20. After the lifting platform 22 goes up, the trigger column 23 passes through the center through hole 28 or the side through hole 29 of the shell 20 and extends into the first space, after the trigger column 23 contacts the buffer plate 11, the winding wheel 25 continues to wind the steel wire 26, the trigger column 23 drives the buffer plate 11 to go up and compresses the spring 14, the buffer plate 11 touches the trigger, and the trigger feeds back the in-place signal to the control panel, and the control panel drives the motor 24 to stop working.
[0037] In one embodiment of the utility model, at least two guide columns 19 are arranged on the shell 20, and an avoiding space 111 for avoiding the guide columns 19 is arranged on the buffer plate 11. When the buffer plate 11 goes up or down, the guide columns 19 all play a guiding role.
[0038] In one embodiment of the utility model, the mounting plate 15 is arranged above the buffer plate 11, the mounting plate 15 is provided with a connecting screw 16, the connecting screw 16 passes through the lifting main body and is connected to the guide column 19, and the mounting plate 15 is fixed to the upper end of the guide column 19. Specifically, the two ends of the spring 14 are arranged between the mounting plate 15 and the buffer plate 11. The mounting mode of the connecting screw 16 is convenient for the mounting of the mounting plate 15 and the device cover.
[0039] In one embodiment of the utility model, the mounting plate 15 is arranged above the buffer plate 11, the mounting plate 15 is provided with a connecting screw 16, the connecting screw 16 passes through the lifting main body and is connected to the guide column 19, and the mounting plate 15 is fixed to the upper end of the guide column 19. Specifically, the two ends of the spring 14 are arranged between the mounting plate 15 and the buffer plate 11. The mounting mode of the connecting screw 16 is convenient for the mounting of the mounting plate 15 and the device cover.
[0040] In one embodiment of the utility model, the upper end of the guide column 12 is provided with a threaded section, and the exposed part of the threaded section is screwed with a nut 17 after passing through the lifting main body 10. The guide column 12 is installed through the thread and the nut, which is convenient for mounting and dismounting.
[0041] In one embodiment of the utility model, the guide column 12 is sleeved with a protective rubber sleeve 13, and the spring 14 is sleeved on the outer side of the protective rubber sleeve 13, and the protective rubber sleeve 13 protects the guide column 12.
[0042] In one embodiment of the utility model, the positioning assembly comprises an upper limiting block 27 and a lower limiting block 21 arranged on the upper end surface of the shell, the upper limiting block 27 is used for limiting the maximum stroke of the upward movement of the buffer plate 11, the upper limiting block 27 is installed on the top of the first space, and the lower limiting block 21 is used for limiting the maximum stroke of the downward movement of the buffer plate 11. The buffer plate 11 moves downward under the elastic force of the spring 14, and the downward movement of the buffer plate 11 is stopped after the lower end surface of the buffer plate 11 collides with the lower limiting block 21. Preferably, the upper limiting block 27 can be installed on the lower end surface of the mounting plate 15, or the upper limiting block 27 is installed on the inner top surface of the lifting main body 10, and one end of the upper limiting block 27 is placed in the first space after penetrating through the mounting plate 15.
[0043] It should be noted that the lowermost end of the upper limiting block 27 is slightly lower than the highest position of the retracted work of the work end of the in-place trigger, so as to prevent the in-place trigger from being damaged by the upward movement of the buffer plate.
[0044] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and their equivalents.
Claims
1. A sensitive elastic guiding structure, characterized in that, The utility model relates to a sensitive elastic guiding structure of lifting platform, which comprises the following parts: a lifting body, the lower end of the lifting body is provided with a first space, the first space is provided with a buffer plate which can be guided to move up and down, a positioning assembly which limits the downward and upward stroke of the buffer plate is arranged in the first space, at least one elastic component is arranged between the buffer plate and the lifting body, the elastic component comprises a guide column and a spring sleeved on the guide column; a to-position trigger, the working end of the to-position trigger is arranged above the buffer plate after penetrating through the lower end of the lifting body which is arranged on the lifting body; a shell, the shell is arranged on the lower end of the lifting body, and the shell wraps the first space; the positioning assembly comprises an upper limiting block and a lower limiting block arranged on the upper end face of the shell, the upper limiting block is used for limiting the maximum stroke of the upward movement of the buffer plate, and the upper limiting block is arranged on the top of the first space; the lower limiting block is used for limiting the maximum stroke of the downward movement of the buffer plate; the lifting body, the buffer plate and the shell are all provided with a central through hole through which a steel wire or a power cable is penetrated.
2. The compliant guide structure of claim 1, wherein At least two guide columns are arranged on the shell, and the buffer plate is provided with a avoiding space for avoiding the guide columns.
3. The compliant guide structure of claim 2, wherein, An installation plate is arranged above the buffer plate, the installation plate is provided with connecting screws, the connecting screws are connected with the guide columns after penetrating through the lifting body, the installation plate is fixed on the upper end of the guide columns, the installation plate is provided with mounting holes, and the working end of the to-position trigger is arranged above the buffer plate after penetrating through the lifting body and the mounting holes.
4. The compliant guide structure of claim 1, wherein, A threaded section is arranged on the upper end of the guide column, the exposed part of the threaded section is screwed with a nut after penetrating through the lifting body, a protective rubber sleeve is sleeved on the outside of the guide column, and the spring is sleeved on the outside of the protective rubber sleeve.
5. The compliant guide structure of any of claims 1 to 4, wherein, The lifting body, the buffer plate and the shell are all provided with side through holes through which the steel wire is penetrated.
6. Elevator, characterized in that The utility model relates to a lifting platform and a sensitive elastic guiding structure as claimed in any one of claims 1-5, a winding wheel and a motor for driving the winding wheel to rotate are arranged in the lifting body, a steel wire is wound in the winding wheel, and the steel wire is connected with the lifting platform after penetrating through the central through hole or the side through hole of the lifting body, the buffer plate and the shell.
7. The lift device of claim 6, wherein, A trigger column is arranged on the lifting platform, the upper end of the trigger column can be in contact with the buffer plate, and the outer diameter of the trigger column is smaller than the inner diameter of the central through hole or the side through hole on the shell.