A type of paving machine

Abstract

This utility model belongs to the technical field of tile placement and removal tools, specifically relating to a tile paving machine. This utility model provides a tile paving machine designed to solve the problem of unreasonable sealing ring installation methods in existing tile paving machines, which easily leads to excessive deformation of the sealing ring. A tile paving machine includes a housing and an elastic sealing ring disposed at the lower end of the housing. The area surrounded by the elastic sealing ring forms a negative pressure zone for adsorbing items. The housing has an installation groove for mounting the elastic sealing ring. The elastic sealing ring includes an installation part that mates with the installation groove and is located within the installation groove, and a contact part that protrudes downward from the installation groove and contacts the adsorbed item. In this utility model, the elastic sealing ring has an installation part that mates with the installation groove on the housing. When the contact part contacts the tile and is subjected to pressure, the installation part forms a support frame, which can evenly distribute the pressure to various parts of the housing, thereby greatly reducing the possibility of local deformation.

Description

Technical Field

[0001] This utility model belongs to the technical field of tile picking and placing tools, specifically relating to a tile paving machine. Background Technology

[0002] A tile laying machine is a device used for laying tiles and other materials. It generally consists of a machine body and a sealing ring on the machine body. The area enclosed by the sealing ring is a negative pressure zone. An air pump is installed inside the machine body. The air pump evacuates the negative pressure zone to create negative pressure. When the sealing ring comes into contact with the tile, the negative pressure in the negative pressure zone causes the tile to adhere.

[0003] In existing technologies, the sealing rings are directly bonded to the machine body. After the tiles are adsorbed, the local area of ​​the sealing ring may deform too much, causing air leakage in the negative pressure zone, which in turn results in poor adsorption stability of the paving machine. Utility Model Content

[0004] This utility model provides a paving machine, which aims to solve the problem that the sealing ring installation method of the existing paving machine is unreasonable, resulting in the sealing ring being prone to excessive deformation.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A paving machine includes a housing and an elastic sealing ring disposed at the lower end of the housing, wherein the area surrounded by the elastic sealing ring forms a negative pressure zone for adsorbing items;

[0007] The housing is provided with a mounting groove for mounting the elastic sealing ring. The elastic sealing ring includes a mounting part that mates with the mounting groove and is located within the mounting groove, and a contact part that protrudes downward from the mounting groove and contacts the adsorbed item.

[0008] A further improved solution: the width of the contact portion is greater than the width of the mounting portion, and the mounting portion is snapped into the mounting groove.

[0009] Based on the above technical solution: the width of the contact part is greater than the width of the mounting part, which increases the contact area between the contact part and the adsorbed item (such as a tile). From a mechanical point of view, the larger the contact area, the lower the pressure per unit area. A larger contact area allows for a more uniform pressure distribution between the paver and the tile, reducing the possibility of excessive local pressure causing deformation of the sealing ring and air leakage, thereby enhancing the stability of adsorption. Moreover, a larger contact area allows for better fit to the tile surface, ensuring a good sealing effect even if there are minor unevennesses on the tile surface, preventing air from entering the negative pressure zone. The mounting part snaps into the mounting groove, providing a reliable mechanical connection. Compared with direct bonding, snap-fit ​​is not affected by factors such as adhesive aging and peeling, maintaining a stable connection during long-term use. The snap-fit ​​structure ensures a stable connection between the elastic sealing ring and the machine housing, further improving the stability and sealing of adsorption.

[0010] A further improved solution: the side wall of the contact portion near the negative pressure zone is the inner side wall of the contact portion, the side wall of the mounting portion near the negative pressure zone is the inner side wall of the mounting portion, and the inner side wall of the contact portion is flush with the inner side wall of the mounting portion.

[0011] Based on the above technical solution: the inner wall of the contact part is flush with the inner wall of the mounting part, allowing a continuous and smooth sealing surface to be formed around the negative pressure zone. When the paving machine adsorbs items such as tiles, outside air cannot enter the negative pressure zone through the tiny gaps between the sealing ring and the machine casing, and between the sealing ring and the tile, effectively ensuring the stability of the negative pressure zone and thus improving the sealing performance and stability of the adsorption. If the inner walls of the contact part and the mounting part are not flush, during the process of the air pump drawing air to form negative pressure, the air may generate turbulence and disordered airflow at the uneven parts. This disordered airflow not only consumes more energy and reduces the air pump's drawing efficiency, but may also create local pressure fluctuations at the sealing ring, increasing the risk of air leakage. The flush inner walls ensure smooth airflow around the negative pressure zone, reducing airflow turbulence and further improving sealing performance.

[0012] A further improved solution: the side wall of the contact portion away from the negative pressure area is the outer side wall of the contact portion, the side wall of the mounting portion away from the negative pressure area is the outer side wall of the mounting portion, and an annular ridge to improve the deformation resistance of the elastic sealing ring is provided between the outer side wall of the contact portion and the outer side wall of the mounting portion. The annular ridge is provided on the upper surface of the contact portion, and the inner side of the annular ridge is connected to the outer side wall of the mounting portion.

[0013] Based on the above technical solution: the annular ridge is located on the upper surface of the contact part and its inner side connects to the outer wall of the mounting part. From the perspective of material mechanics, the presence of the annular ridge alters the stress distribution of the elastic sealing ring. When the elastic sealing ring is subjected to external forces, such as the squeezing and friction forces that a paving machine may experience during the adsorption of tiles, the annular ridge can bear a portion of the stress, distributing these stresses over a larger area. The annular ridge prevents excessive deformation of the elastic sealing ring at the connection area between the contact part and the mounting part when under stress, thereby improving the deformation resistance of the elastic sealing ring. In actual operation, the elastic sealing ring may be subjected to forces from various directions. The presence of the annular ridge can better resist forces perpendicular to the connection surface between the contact part and the mounting part. Because the annular ridge enhances the deformation resistance of the elastic sealing ring, it can better maintain its sealing shape when in contact with tiles and other objects. The presence of the annular ridge ensures that the elastic sealing ring will not develop gaps due to deformation during the tight fit with the tile, thereby effectively preventing sealing failure and improving the sealing performance of the negative pressure zone.

[0014] A further improved solution: the annular ridge, the contact portion, and the mounting portion are an integral structure.

[0015] Based on the above technical solution: the ring edge, contact part, and mounting part are integrated into a seamless structure, avoiding stress concentration problems caused by possible tiny gaps in the connection parts. During the operation of the paving machine, the elastic sealing ring is subjected to various forces, such as pressure from the tile, negative pressure generated by the air pump, and constraint force from the machine casing. The integrated structure can evenly transmit and disperse these forces, making the entire elastic sealing ring structure more stable and robust, and greatly improving its overall strength.

[0016] A further improved solution: The wall in contact with the adsorbed item is provided with annular ridges, which surround the negative pressure zone.

[0017] Based on the above technical solution: Annular ridges are positioned around the negative pressure zone on the wall where the contact part contacts the adsorbed item. Air must overcome these ridges to enter the negative pressure zone. The ridges increase airflow resistance, making it more difficult for air to penetrate, thus forming multiple lines of defense and effectively improving the sealing performance of the negative pressure zone. In practical applications, the surface of the adsorbed item may not be completely flat, with some minor bumps or depressions. The annular ridges have a certain degree of elasticity; when they come into contact with uneven surfaces, they can better conform to the shape of the item's surface, further enhancing the sealing effect and ensuring that the negative pressure zone maintains a stable negative pressure.

[0018] A further improved solution: the annular ridge has several sections, and each annular ridge is integrally formed with the contact portion.

[0019] Based on the above technical solution: several annular ridges are arranged around the wall where the contact part contacts the adsorbed item, forming a continuous sealing barrier. Each annular ridge prevents air from entering the negative pressure zone through the tiny gap between the contact wall and the item. Compared with a single annular ridge, multiple annular ridges can more effectively reduce air leakage and improve the sealing performance of the negative pressure zone. When the first annular ridge develops a tiny gap for some reason, the subsequent annular ridges can still play a sealing role, ensuring the stability of the negative pressure zone. The integrated structure makes the connection between the annular ridges and the contact part more secure, preventing loosening or separation due to external forces. When the paving machine moves on uneven ground or is subjected to external impact, the multiple annular ridges can work together to provide stable support for the contact part and effectively resist deformation.

[0020] A further improved solution: The elastic sealing ring includes a first arc-shaped portion and a second arc-shaped portion, the first arc-shaped portion and the second arc-shaped portion being disposed opposite to each other. The elastic sealing ring also includes a third arc-shaped portion disposed between the first arc-shaped portion and the second arc-shaped portion and a fourth arc-shaped portion disposed between the first arc-shaped portion and the second arc-shaped portion, the third arc-shaped portion and the fourth arc-shaped portion being disposed opposite to each other. The first arc-shaped portion, the second arc-shaped portion, the third arc-shaped portion and the fourth arc-shaped portion are integral structures, and the second arc-shaped portion is integrally structured with the third arc-shaped portion and the fourth arc-shaped portion.

[0021] Based on the above technical solution: the first, second, third, and fourth arc-shaped sections cooperate to form an elastic sealing ring, with the first arc-shaped section integrated with the third and fourth arc-shaped sections, and the second arc-shaped section also integrated with the third and fourth arc-shaped sections. This structure makes the entire elastic sealing ring an organic whole, allowing the force to be evenly distributed across each arc-shaped section when subjected to external forces. When the paving machine is working, the elastic sealing ring is subjected to pressure from the tiles and negative pressure generated by the air pump. The integrated structure ensures that these forces do not concentrate on any one arc-shaped section, thereby improving the overall strength and stability of the structure. The integrated structure also makes the connection between the arc-shaped sections more secure, preventing loosening or separation due to repeated external forces. During long-term use of the paving machine, the elastic sealing ring is constantly subjected to compression and tension forces, and the integrated structure effectively resists deformation caused by these forces. When frequently adsorbing and releasing tiles, the elastic sealing ring needs to constantly change shape; the integrated structure ensures that it can quickly return to its original shape after deformation, maintaining good sealing performance and working condition.

[0022] A further improved solution: Both the first arc-shaped portion and the second arc-shaped portion extend horizontally outward from the negative pressure zone.

[0023] Based on the above technical solution: the first and second arc-shaped portions extend horizontally outward from the negative pressure zone. This structure allows them to better conform to the surface of the object being absorbed after installation on the paving machine. When absorbing a tile with an uneven surface, the extended arc-shaped portions can adapt to the undulations of the tile's edges, forming a more reliable seal and ensuring stable negative pressure within the negative pressure zone. During paving machine operation, the negative pressure zone generates significant suction, which acts on the elastic sealing ring. The first and second arc-shaped portions extending outward from the negative pressure zone can more evenly distribute this pressure to the surrounding area, preventing excessive local pressure that could deform or damage the sealing ring, thereby enhancing the stability of the seal.

[0024] A further improved solution: both the third arc-shaped portion and the fourth arc-shaped portion extend horizontally into the negative pressure zone.

[0025] Based on the above technical solution: the third and fourth arc-shaped sections extending into the negative pressure zone provide internal support for the entire elastic sealing ring. They cooperate with the first and second arc-shaped sections to form a stable frame structure, making it less prone to deformation or damage under external forces, thus improving the service life of the sealing ring. During the operation of the paving machine, the elastic sealing ring is subjected to forces from various directions. The inward extension structure of the third and fourth arc-shaped sections can balance the distribution of these forces, ensuring that the force acts evenly on the entire sealing ring.

[0026] The beneficial effects of this utility model are as follows:

[0027] In this invention, the elastic sealing ring has an installation part that mates with the installation groove on the machine housing. When the contact part contacts the tile and is subjected to pressure, the installation part forms a support frame, which can evenly distribute the pressure to various parts of the machine housing. On a large plane, the pressure is distributed around the perimeter, and the pressure borne by each point is relatively small, thereby greatly reducing the possibility of local deformation. Excessive local deformation is one of the main causes of air leakage in the negative pressure zone. Because the elastic sealing ring can effectively disperse pressure and reduce local deformation, it makes it more difficult for air to enter the negative pressure zone from the contact surface between the sealing ring and the tile, as well as the connection between the sealing ring and the machine housing, thereby reducing the risk of air leakage, significantly enhancing adsorption stability, and allowing the tiles to be more firmly adsorbed onto the paving machine during the laying process.

[0028] The mounting portion of the elastic sealing ring mates with a mounting groove on the housing. This groove provides a fixed, precise space for the mounting portion, allowing it to fit snugly. This tight connection effectively prevents air from entering the negative pressure zone, ensuring its airtightness. The elastic sealing ring itself is elastic; when mated with the mounting groove, it undergoes a certain degree of elastic deformation according to the groove's shape, thus better filling the minute gaps between the groove and the sealing ring. This elastic compensation further enhances sealing performance, ensuring a good seal even with minor manufacturing errors in the housing and the elastic sealing ring.

[0029] Because elastic sealing rings can effectively distribute pressure and reduce local deformation, they reduce stress concentration caused by excessive deformation. This reduces the probability of damage to the sealing ring due to excessive deformation and extends its service life. Attached Figure Description

[0030] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For users of ordinary skills in the art, other related drawings can be obtained from these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the internal structure of a paving machine according to this utility model.

[0032] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0033] Figure 3 This is an exploded view of the assembly point between the elastic sealing ring and the machine casing in a paving machine according to this utility model.

[0034] Figure 4 This is a schematic diagram of the casing of a paving machine according to the present invention.

[0035] Figure 5 This is a schematic diagram of a paving machine according to this utility model.

[0036] Explanation of the labels in the diagram:

[0037] 1-Housing; 2-Elastic sealing ring; 3-Negative pressure zone; 4-Mounting groove; 5-Mounting part; 6-Contact part; 7-Ring edge; 8-Ring edge; 9-First arc-shaped part; 10-Second arc-shaped part; 11-Third arc-shaped part; 12-Fourth arc-shaped part. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model. All other embodiments obtained by users of the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0039] refer to Figures 1 to 5 A paving machine includes a housing 1 and an elastic sealing ring 2 disposed at the lower end of the housing 1, wherein the area surrounded by the elastic sealing ring 2 forms a negative pressure zone 3 for adsorbing items;

[0040] The housing 1 is provided with a mounting groove 4 for mounting the elastic sealing ring 2. The elastic sealing ring 2 includes a mounting part 5 that cooperates with the mounting groove 4 and is located in the mounting groove 4, and a contact part 6 that protrudes downward from the mounting groove 4 and contacts the adsorbed item.

[0041] Specifically: The mounting groove 4 is directly formed on the housing 1. The width of the contact portion 6 is greater than the width of the mounting portion 5, and the mounting portion 5 is snapped into the mounting groove 4. The mounting portion 5 can also be glued to the side wall of the mounting groove 4. The side wall of the contact portion 6 near the negative pressure zone 3 is the inner side wall of the contact portion 6, and the side wall of the mounting portion 5 near the negative pressure zone 3 is the inner side wall of the mounting portion 5. The inner side wall of the contact portion 6 is flush with the inner side wall of the mounting portion 5. The side wall of the contact portion 6 away from the negative pressure zone 3 is the outer side wall of the contact portion 6, and the side wall of the mounting portion 5 away from the negative pressure zone 3 is the outer side wall of the mounting portion 5. An annular ridge 7 is provided between the outer side wall of the contact portion 6 and the outer side wall of the mounting portion 5 to improve the deformation resistance of the elastic sealing ring 2. The annular ridge 7 is provided on the upper surface of the contact portion 6, and the inner side of the annular ridge 7 is in contact with the outer side wall of the mounting portion 5. The annular ridge 7, the contact portion 6, and the mounting portion 5 are an integral structure. The cross-sectional shape of the ring 7 can be rectangular.

[0042] Wherein: the contact portion 6 has annular ridges 8 on its wall in contact with the adsorbed item, and the annular ridges 8 surround the negative pressure zone 3. There are several annular ridges 8, and each annular ridge 8 is an integral structure with the contact portion 6. The cross-sectional shape of the annular ridges 8 can be semi-circular or rectangular.

[0043] Specifically, the elastic sealing ring 2 includes a first arc-shaped portion 9 and a second arc-shaped portion 10, which are disposed opposite to each other. The elastic sealing ring 2 also includes a third arc-shaped portion 11 disposed between the first arc-shaped portion 9 and the second arc-shaped portion 10, and a fourth arc-shaped portion 12 disposed between the first arc-shaped portion 9 and the second arc-shaped portion 10, which are disposed opposite to each other. The first arc-shaped portion 9, the second arc-shaped portion 10, the third arc-shaped portion 11, and the fourth arc-shaped portion 12 cooperate to form the elastic sealing ring 2. The first arc-shaped portion 9, the third arc-shaped portion 11, and the fourth arc-shaped portion 12 are integral structures, as are the second arc-shaped portion 10, the third arc-shaped portion 11, and the fourth arc-shaped portion 12. Both the first arc-shaped portion 9 and the second arc-shaped portion 10 extend horizontally outward from the negative pressure zone 3. Both the third arc-shaped portion 11 and the fourth arc-shaped portion 12 extend horizontally into the negative pressure zone 3. The elastic sealing ring 2 can also be other shapes, such as an annular shape.

[0044] The working principle of this embodiment:

[0045] An air pump is installed inside the casing 1 of the paving machine. The air pump typically consists of a motor, impeller, and pump body. When the motor starts, it drives the impeller to rotate at high speed, creating a negative pressure inside the pump body. The air pump is connected to an area formed by a flexible sealing ring 2. When the air pump operates, it performs a vacuum operation on this area, continuously extracting air, reducing the air volume and pressure, ultimately forming a negative pressure zone 3. When the paving machine approaches a tile or other object to be absorbed, the contact portion 6 of the flexible sealing ring 2 first contacts the surface of the object. The contact portion 6 is usually made of a soft and elastic material, such as rubber, to better adapt to the unevenness of the tile surface and ensure a tight contact with the tile. The mounting portion 5 of the flexible sealing ring 2 is located in the mounting groove 4 of the casing 1. When the contact portion 6 is subjected to pressure from the tile, the mounting portion 5 evenly transmits this pressure to the casing 1. The casing 1 typically has high strength and rigidity, capable of withstanding and dispersing these pressures, preventing pressure concentration in a localized area of ​​the contact portion 6. Because negative pressure exists within negative pressure zone 3, while the external atmospheric pressure remains normal, based on the principle of pressure difference, atmospheric pressure exerts a pushing force on the tile towards negative pressure zone 3, pressing the tile tightly against the elastic sealing ring 2, thereby achieving adsorption.

[0046] This utility model is not limited to the above-mentioned optional embodiments. Under the premise of non-contradiction, the various solutions can be combined arbitrarily. Anyone can derive other forms of products under the guidance of this utility model. However, no matter what changes are made in their shape or structure, all technical solutions that fall within the scope of the claims of this utility model are within the protection scope of this utility model.

Claims

1. A tiler, characterized by: It includes a housing and an elastic sealing ring disposed at the lower end of the housing, the area surrounded by the elastic sealing ring forming a negative pressure zone for adsorbing items; The housing is provided with a mounting groove for mounting the elastic sealing ring. The elastic sealing ring includes a mounting part that mates with the mounting groove and is located within the mounting groove, and a contact part that protrudes downward from the mounting groove and contacts the adsorbed item.

2. A tiler as claimed in claim 1, wherein: The width of the contact portion is greater than the width of the mounting portion, and the mounting portion is engaged within the mounting groove.

3. A tiler as claimed in claim 2, wherein: The side wall of the contact portion near the negative pressure zone is the inner side wall of the contact portion, and the side wall of the mounting portion near the negative pressure zone is the inner side wall of the mounting portion. The inner side wall of the contact portion is flush with the inner side wall of the mounting portion.

4. A tiler as claimed in claim 3 wherein: The side wall of the contact portion away from the negative pressure area is the outer side wall of the contact portion, and the side wall of the mounting portion away from the negative pressure area is the outer side wall of the mounting portion. An annular ridge is provided between the outer side wall of the contact portion and the outer side wall of the mounting portion to improve the deformation resistance of the elastic sealing ring. The annular ridge is provided on the upper surface of the contact portion, and the inner side of the annular ridge is in contact with the outer side wall of the mounting portion.

5. A tiler as claimed in claim 4 wherein: The ring ridge, the contact portion, and the mounting portion are an integral structure.

6. A tiler as claimed in claim 5 wherein: The contact portion has annular ridges on the wall that come into contact with the adsorbed item, and the annular ridges surround the negative pressure zone.

7. A tiler as claimed in claim 6 wherein: There are several annular ridges, and each annular ridge is integrally formed with the contact portion.

8. A tiler as claimed in claim 1 wherein: The elastic sealing ring includes a first arc-shaped portion and a second arc-shaped portion, which are disposed opposite to each other. The elastic sealing ring also includes a third arc-shaped portion disposed between the first arc-shaped portion and the second arc-shaped portion and a fourth arc-shaped portion disposed between the first arc-shaped portion and the second arc-shaped portion, which are disposed opposite to each other. The first arc-shaped portion, the second arc-shaped portion, the third arc-shaped portion, and the fourth arc-shaped portion cooperate to form the elastic sealing ring. The first arc-shaped portion, the third arc-shaped portion, and the fourth arc-shaped portion are integral structures, and the second arc-shaped portion, the third arc-shaped portion, and the fourth arc-shaped portion are integral structures.

9. A tiler as claimed in claim 8, wherein: Both the first arc-shaped portion and the second arc-shaped portion extend horizontally outward from the negative pressure zone.

10. A tiler as claimed in claim 9, wherein: Both the third and fourth arc-shaped portions extend horizontally into the negative pressure zone.

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