Device for quickly assembling magnet

By designing an automated device for quickly assembling magnets, the problems of low efficiency and high cost of magnet assembly in the prior art are solved, and an efficient and accurate magnet assembly process is achieved.

CN223028940UActive Publication Date: 2025-06-27SHENZHEN SUMMER MIRACLE TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202421847955.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-31
Publication Date
2025-06-27
Estimated Expiration
2034-07-31

AI Technical Summary

Technical Problem

The prior art is inefficient and costly in magnet assembly process, mainly due to manual operation, which is low assembly efficiency.

Method used

A device including a support frame, feeding assembly, assembly assembly and storage pipe is designed, and the magnet is automatically transferred to the product through the feeding assembly. The assembly uses a cylinder to drive the rivet nail to press the magnet into the product.

Benefits of technology

Automatic and rapid assembly of magnets is realized, assembly efficiency is improved, labor costs are reduced, assembly errors and rework rates caused by human factors are reduced.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223028940U_ABST
    Figure CN223028940U_ABST
Patent Text Reader

Abstract

The utility model discloses a device for quickly assembling a magnet. The device for rapidly assembling the magnet comprises a supporting frame, a feeding assembly, an assembling assembly and a material storage pipe, the feeding assembly and the assembling assembly are both installed on the supporting frame, the material storage pipe is connected to the feeding assembly and used for providing the magnet for the feeding assembly, and the assembling assembly is installed on the supporting frame. The supporting frame is further provided with a containing base located below the assembling assembly, the containing base is used for containing a product, the feeding assembly is used for transferring the magnet to the position above the product, and the assembling assembly is used for pressing the magnet into the product. According to the magnet assembling device, the storage pipe is connected to the feeding assembly and used for providing magnets for the feeding assembly, the feeding assembly is used for transferring the magnets to the position above a product, and the assembling assembly is used for pressing the magnets into the product, so that the magnets are automatically and rapidly assembled, the assembling efficiency is improved, and the labor cost is reduced.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of magnet assembly, in particular to a device for quickly assembling magnets. Background Art

[0002] For some products, magnets need to be applied to the products. In the prior art, manual operation is generally adopted. The operator first separates the magnets one by one, then pre - places the magnets in the reserved holes of the products, and then places the products pre - installed with magnets on a manual riveting press and presses them in place. However, the above - mentioned operation has a low assembly efficiency, resulting in a high labor cost. Summary of the Utility Model

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a device for quickly assembling magnets.

[0004] To solve the above - mentioned technical problems, the utility model adopts the following technical solutions:

[0005] An embodiment of the utility model provides a device for quickly assembling magnets, including: a support frame, a feeding component, an assembling component and a storage pipe. The feeding component and the assembling component are both installed on the support frame. The storage pipe is connected to the feeding component and is used to provide magnets for the feeding component. A placing seat is further provided below the support frame and located below the assembling component. The placing seat is used to place products. The feeding component is used to transfer the magnets above the products, and the assembling component is used to press the magnets into the products.

[0006] In a specific embodiment, the feeding component includes a feeding air cylinder, a feeding part and a fixing block. The feeding air cylinder and the fixing block are connected to the support frame. The fixing block is provided with a through - hole. One end of the feeding part is connected to the telescopic end of the feeding air cylinder, and the other end is slidably connected to the through - hole. The storage pipe is vertically installed on the fixing block and communicates with the through - hole and the feeding part to form an abutment to provide the magnets for the feeding part. The feeding air cylinder drives the feeding part to move so that the feeding part carries the magnets and transfers them above the products.

[0007] In a specific embodiment, an anti - error magnet block is further provided below the support frame and below the fixing block. The polarity of the anti - error magnet block is opposite to that of the magnets in the storage pipe.

[0008] In a specific embodiment, a U - shaped bayonet is provided at the position of the feeding part corresponding to the storage pipe. The U - shaped bayonet is used to accommodate the magnets.

[0009] In a specific embodiment, the assembly component includes an assembly cylinder and an assembly seat. The assembly cylinder is connected to the support frame, the assembly seat is connected to the telescopic end of the assembly cylinder, and a riveting nail is provided below the assembly seat. When the feeding member carries the magnet and moves it above the product, the assembly cylinder drives the assembly seat to move downward, so that the riveting nail presses the magnet into the product.

[0010] In a specific embodiment, the assembly cylinder is connected to the support frame through a fixed seat, and linear guide columns are provided on both sides of the fixed seat. The lower ends of the linear guide columns are connected to the assembly seat.

[0011] In a specific embodiment, the number of the storage tubes is two.

[0012] In a specific embodiment, the storage tube is circular tubular.

[0013] In a specific embodiment, a control button is further provided on the support frame, and the control button is used to control the operation of the feeding component and the assembly component.

[0014] In a specific embodiment, support feet are further provided at the bottom of the support frame.

[0015] The beneficial effect of the device for quickly assembling magnets of the present invention compared with the prior art is that the storage tube is connected to the feeding component and is used to provide magnets for the feeding component. The feeding component is used to move the magnet above the product, and the assembly component is used to press the magnet into the product, so as to realize automatic and rapid magnet assembly, improve the assembly efficiency, and reduce the labor cost.

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic structural diagram of the device for quickly assembling magnets provided by the present invention;

[0019] Figure 2 It is an exploded schematic diagram of the device for quickly assembling magnets provided by the present invention;

[0020] Figure 3 It is a schematic structural diagram of the feeding component provided by the present invention;

[0021] Figure 4 This is an exploded view of the feeding assembly provided by the present utility model. Detailed implementation manners

[0022] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and specific implementation manners.

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of the present utility model.

[0024] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0025] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more, unless otherwise specifically defined.

[0026] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it can be a connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. 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 circumstances.

[0027] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include the first and second features not being in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0028] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0029] See Figures 1 to 4 Referring to the specific embodiment shown, the present utility model discloses a device for quickly assembling magnets, comprising: a support frame 10, a feeding assembly 20, an assembling assembly 30 and a storage pipe 40. The feeding assembly 20 and the assembling assembly 30 are both installed on the support frame 10. The storage pipe 40 is connected to the feeding assembly 20 and is used to provide magnets for the feeding assembly 20. A placing seat 50 is further provided below the support frame 10 and located below the assembling assembly 30. The placing seat 50 is used to place a product 60. The feeding assembly 20 is used to transfer the magnets above the product 60, and the assembling assembly 30 is used to press the magnets into the product 60.

[0030] Specifically, it is connected to the feeding assembly 20 through the storage pipe 40 and is used to provide magnets to the feeding assembly 20. The feeding assembly 20 is used to transfer the magnets above the product 60, and the assembly component 30 is used to press the magnets into the product 60, so as to realize the automatic and rapid assembly of magnets, improve the assembly efficiency and reduce the labor cost. In addition, since the automated assembly is realized and the dependence on manual operation is reduced, the labor cost can be reduced. At the same time, the automated assembly also reduces the assembly errors and rework rate caused by human factors, further improving the economic benefits. In addition, the automated assembly process can usually control the position and pressing force of the magnets more precisely, thus ensuring the consistency and quality of the assembly, which is particularly important for products 60 that require high-precision magnet assembly, such as electronic devices, mechanical devices, etc. In addition, through modular design, such as the feeding assembly 20, the assembly component 30, etc. can be independently replaced or adjusted, enabling it to adapt to the assembly requirements of different types and specifications of magnets. This flexibility enables the production line to adapt to market changes more quickly and meet diverse production needs.

[0031] In one embodiment, the feeding assembly 20 includes a feeding cylinder 21, a feeding member 22 and a fixing block 23. The feeding cylinder 21 and the fixing block 23 are connected to the support frame 10. The fixing block 23 is provided with a through hole 231. One end of the feeding member 22 is connected to the telescopic end of the feeding cylinder 21, and the other end is slidably connected to the through hole 231. The storage pipe 40 is vertically installed on the fixing block 23 and communicates with the through hole 231 to form an abutment with the feeding member 22 to provide the magnets to the feeding member 22. The feeding cylinder 21 drives the feeding member 22 to move, so that the feeding member 22 carries the magnets and transfers them above the product 60.

[0032] Specifically, through the drive of the feeding cylinder 21, the movement of the feeding member 22 can be precisely controlled. One end of the feeding member 22 is connected to the telescopic end of the feeding cylinder 21, and the other end slides in the through-hole 231 of the fixed block 23. This design ensures the stability and accuracy of the feeding member 22 during movement. This precise control enables the magnet to be accurately delivered above the product 60, laying the foundation for subsequent assembly steps. Additionally, the storage tube 40 is vertically installed on the fixed block 23 and abuts against the through-hole 231 and the feeding member 22. This design allows the storage tube 40 to continuously supply magnets to the feeding member 22. When the feeding member 22 moves horizontally driven by the feeding cylinder 21, it takes out the magnet from the storage tube 40 and carries it above the product 60. This continuous feeding method ensures the continuity and efficiency of the assembly process. Moreover, the entire feeding process is automated without manual intervention. The feeding cylinder 21 serves as the power source, and its telescopic movement drives the feeding member 22 to move, thereby realizing the automatic feeding of the magnet. This automated operation not only improves production efficiency but also reduces labor costs and the risk of human errors. Additionally, due to the relatively flexible structural design of the feeding assembly 20, parameters such as the stroke of the feeding cylinder 21 and the size of the feeding member 22 can be adjusted to adapt to magnets of different specifications and sizes. At the same time, the design of the storage tube 40 also allows magnets of different shapes and sizes to be smoothly fed into the feeding system. This strong adaptability enables the device to be applied to a wider range of production scenarios.

[0033] In one embodiment, a wrong-position prevention magnet block 70 is further provided below the fixed block 23 of the support frame 10, and the wrong-position prevention magnet block 70 has a polarity opposite to that of the magnet in the storage tube 40.

[0034] Specifically, in the existing manual installation method, the magnets are often placed unevenly or the N and S poles are reversed, resulting in many defective products 60, which is time-consuming and laborious, and greatly reduces the installation efficiency of the product line. In addition, this design works by having the polarity of the anti-misalignment magnet block 70 opposite to that of the magnet in the storage tube 40. When the magnet falls from the storage tube 40 and is correctly placed in the preset position (i.e., its polarity orientation forms an attracting state with the anti-misalignment magnet block 70), the two will attract each other, thus confirming that the polarity of the magnet is correct; if the polarity of the magnet is placed incorrectly, that is, the same poles face each other with the anti-misalignment magnet block 70, then the two will generate a repulsive force, which will prevent the magnet from falling from the storage tube 40. This immediate feedback mechanism helps to promptly detect and correct the error in the magnet polarity, avoiding problems in the subsequent assembly process. In addition, in many applications, the polarity of the magnet is crucial for the performance of the product 60. For example, in devices such as motors, sensors, or magnetic levitation systems, the polarity of the magnet must be precisely matched to ensure the normal operation of the device. Therefore, through the design of the anti-misalignment magnet block 70, the accuracy in the assembly process can be significantly improved, and rework or scrapping caused by incorrect polarity can be reduced. In addition, this design also realizes the automatic detection and feedback of the magnet polarity. During the assembly process, there is no need for manual inspection of whether the polarity of the magnet is correct. Instead, the anti-misalignment magnet block 70 automatically completes this task. Once a polarity error is detected, it will immediately give feedback through the repulsive force, enabling the operator to quickly take measures to correct it.

[0035] In one embodiment, the feeding member 22 is provided with a U-shaped bayonet 221 corresponding to the position of the storage tube 40, and the U-shaped bayonet 221 is used to accommodate the magnet.

[0036] Specifically, the design of the U-shaped bayonet 221 provides a stable accommodation space for the magnet. When the magnet drops from the storage tube 40, it can be accurately placed within the U-shaped bayonet 221, thus avoiding the shaking or dropping of the magnet during movement. This stability helps ensure the accuracy and reliability of the magnet during the feeding and assembly processes. Additionally, the shape and size of the U-shaped bayonet 221 are typically designed according to the shape and size of the magnet to ensure that the magnet can be fully and accurately embedded therein. This design helps ensure that the magnet can always maintain the correct orientation and position during the feeding process, facilitating subsequent assembly steps. Moreover, by placing the magnet within the U-shaped bayonet 221, the feeding member 22 can more efficiently transfer the magnet above the product 60. Additionally, the design of the U-shaped bayonet 221 also helps reduce errors and rework during the assembly process. Since the magnet is accurately placed within the U-shaped bayonet 221, assembly problems caused by improper magnet position or incorrect polarity are reduced. This not only improves the accuracy of assembly but also reduces production costs and waste. Additionally, although the specific design may vary depending on the application, the design of the U-shaped bayonet 221 is generally flexible and can accommodate magnets of different specifications and sizes. By adjusting the size and shape of the U-shaped bayonet 221, the device can easily adapt to different types of magnets, thus meeting diverse production requirements.

[0037] In one embodiment, the assembly component 30 includes an assembly cylinder 31 and an assembly seat 32. The assembly cylinder 31 is connected to the support frame 10, the assembly seat 32 is connected to the telescopic end of the assembly cylinder 31, and a riveting nail 33 is provided below the assembly seat 32. When the feeding member 22 carries the magnet and transfers it above the product 60, the assembly cylinder 31 drives the assembly seat 32 to move downward, so that the riveting nail 33 presses the magnet into the product 60.

[0038] Specifically, through the drive of the assembly cylinder 31, the automatic press-fitting of the magnet from the feeding part 22 to the product 60 is realized. Compared with traditional manual assembly, this method greatly improves the assembly efficiency, reduces the labor cost, and the automatic assembly reduces the labor intensity of the workers and avoids the fatigue and errors that may be caused by long-term repetitive labor. In addition, the telescopic end of the assembly cylinder 31 is connected to the assembly seat 32, which can accurately control the press-fitting position of the magnet, which helps to ensure that the magnet is accurately pressed into the designated position of the product 60 and improves the accuracy and consistency of the assembly. In addition, by adjusting the air pressure or mechanical force of the assembly cylinder 31, the pressure exerted by the riveting nail 33 on the magnet can be accurately controlled. Appropriate pressure helps to ensure that the magnet is firmly fixed in the product 60 while avoiding damage to the product 60. In addition, the stable structure of the assembly cylinder 31 and the assembly seat 32 ensures the stability of the magnet during the press-fitting process and reduces the assembly problems caused by shaking or deviation. In addition, this technology can adapt to products 60 of different shapes, sizes and materials. Only by adjusting the designs of the assembly seat 32 and the riveting nail 33 can different assembly requirements be met. When different types or specifications of magnets need to be assembled, the parameters and settings of the assembly component 30 can be quickly adjusted to achieve rapid changeover production.

[0039] In one embodiment, the assembly cylinder 31 is connected to the support frame 10 through a fixed seat 34. Linear guide posts 35 are provided on both sides of the fixed seat 34, and the lower ends of the linear guide posts 35 are connected to the assembly seat 32.

[0040] Specifically, the linear guide posts 35 provide accurate guidance for the relative movement between the assembly cylinder 31 and the assembly seat 32. During the assembly process, when the assembly cylinder 31 pushes the assembly seat 32 downward, the linear guide posts 35 ensure that the assembly seat 32 can move smoothly along a predetermined path, thereby realizing the accurate press-fitting of the magnet. In addition, without the guidance of the linear guide posts 35, the assembly seat 32 may shift due to uneven force or other factors during the movement. The presence of the linear guide posts 35 effectively reduces the possibility of such shift and improves the accuracy and stability of the assembly. In addition, the connection between the linear guide posts 35 and the fixed seat 34 and the assembly seat 32 forms a stable support structure, which enhances the stiffness of the entire assembly component 30 and makes it not easily deformed or damaged when subjected to external forces.

[0041] In one embodiment, the number of the storage pipes 40, the U-shaped bayonets 221 and the riveting nails 33 is 2 each.

[0042] Specifically, the simultaneous feeding of the two storage tubes 40 can ensure the synchronization of the two magnets during the assembly process, which helps to maintain the consistency of the positions of the two magnets on the product 60 and improve the overall quality and appearance of the product 60. Additionally, since the two magnets can be press-fitted simultaneously, the entire assembly cycle is shortened. Moreover, by adjusting the number and layout of the storage tubes 40, the assembly requirements of different products 60 can be flexibly adapted. For example, for products 60 that require the assembly of more magnets, the number of storage tubes 40 can be further increased. This design makes the assembly component 30 more flexible and scalable.

[0043] In one embodiment, the storage tube 40 is circular tubular.

[0044] Specifically, the circular tubular design reduces the resistance when the magnet moves in the storage tube 40, enabling the magnet to slide out of the storage tube 40 more smoothly and enter the position of the U-shaped bayonet 221, which helps to improve the efficiency and accuracy of the assembly. Additionally, the inner wall of the circular tube is smooth, reducing the friction between the magnet and the tube wall and lowering the risk of jamming of the magnet during the feeding process. Moreover, the circular tubular storage tube 40 can be applicable to various types of magnets and assembly requirements, with strong compatibility and adaptability. Whether it is a small magnet or a large magnet, the assembly requirements can be met by adjusting the size and structure of the storage tube 40.

[0045] In one embodiment, a control button 80 is further provided on the support frame 10, and the control button 80 is used to control the operation of the feeding component 20 and the assembly component 30.

[0046] Specifically, when the control button 80 is pressed, the feeding cylinder 21 starts to operate, driving the feeding member 22 to move, so that the magnet is separated from the anti-misalignment magnet block 70 and accurately sent above the position where the magnet needs to be installed on the product 60. At this time, the assembly cylinder 31 starts to operate, driving the assembly seat 32 to move downward, and the riveting nail 33 presses the magnet flatly into the product 60. Then the assembly cylinder 31 drives the assembly seat 32 to move upward and reset, and at the same time the feeding cylinder 21 drives the feeding member 22 to retreat and reset. Finally, the product 60 is manually removed, and the magnet assembly of one product 60 is completed.

[0047] In one embodiment, support feet 11 are further provided at the bottom of the support frame 10.

[0048] Specifically, as the connection point between the support frame 10 and the ground or the foundation structure, the support feet 11 bear the important task of transferring the support frame 10 and the weight it carries to the ground. This support function ensures the stability and safety of the support frame 10 and the equipment or components above it. Additionally, the support feet 11 usually have an adjustable design to meet the requirements of different ground conditions. For example, on uneven ground, the height of the support feet 11 can be adjusted to ensure the horizontal stability of the support frame 10; on soft ground, the bearing capacity and stability can be increased by enlarging the area of the support feet 11 or using special materials.

[0049] The above embodiments are the preferred implementation schemes of the present utility model. In addition, the present utility model can also be implemented in other ways. Any obvious replacement without departing from the concept of the technical solution is within the protection scope of the present utility model.

Claims

1. A device for quickly assembling magnets, characterized in that: include: A support frame, a feeding component, an assembly component and a storage tube, wherein the feeding component and the assembly component are both installed on the support frame, the storage tube is connected to the feeding component and is used to provide a magnet to the feeding component, the support frame is located below the assembly component and is also provided with a storage seat, the storage seat is used to place products, the feeding component is used to move the magnet to the top of the product, and the assembly component is used to press the magnet into the product.

2. The device for quickly assembling magnets according to claim 1, characterized in that: The feeding assembly includes a feeding cylinder, a feeding piece and a fixed block, the feeding cylinder and the fixed block are connected to the support frame, the fixed block is provided with a through-hole, one end of the feeding piece is connected to the telescopic end of the feeding cylinder, and the other end is slidably connected to the through-hole, the storage tube is vertically installed on the fixed block, and is connected to the through-hole to form an abutment with the feeding piece to provide the magnet to the feeding piece, and the feeding cylinder drives the feeding piece to move so that the feeding piece carries the magnet and moves to the top of the product.

3. The device for quickly assembling magnets according to claim 2, characterized in that: The support frame is located below the fixed block and is also provided with an error-proofing magnet block, and the polarity of the error-proofing magnet block is opposite to that of the magnet in the material storage tube.

4. The device for quickly assembling magnets according to claim 2, characterized in that: The feeding piece is provided with a U-shaped bayonet at a position corresponding to the material storage tube, and the U-shaped bayonet is used to accommodate the magnet.

5. The device for quickly assembling magnets according to claim 2, characterized in that: The assembly component includes an assembly cylinder and an assembly seat, the assembly cylinder is connected to the support frame, the assembly seat is connected to the telescopic end of the assembly cylinder, and a rivet pin is provided under the assembly seat. When the feeding piece carries the magnet and moves to the top of the product, the assembly cylinder drives the assembly seat downward so that the rivet pin presses the magnet into the product.

6. The device for quickly assembling magnets according to claim 5, characterized in that: The assembly cylinder is connected to the support frame via a fixing seat, linear guide columns are arranged on both sides of the fixing seat, and the lower ends of the linear guide columns are connected to the assembly seat.

7. The device for quickly assembling magnets according to claim 1, characterized in that: The number of the material storage tubes is 2.

8. The device for quickly assembling magnets according to claim 1, characterized in that: The material storage tube is in the shape of a circular tube.

9. The device for quickly assembling magnets according to claim 1, characterized in that: The support frame is also provided with a control button, and the control button is used to control the operation of the feeding component and the assembling component.

10. The device for quickly assembling magnets according to claim 1, characterized in that: The bottom of the support frame is also provided with supporting feet.