POM rotating base with mute wear-resistant function

Abstract

The present application relates to the technical field of POM rotary base for dining table, and discloses a POM rotary base with mute and wear-resistant functions, wherein the upper end of a POM base is rotatably installed with a POM top base, the upper end surface of the POM base is provided with a lubricating assembly, and a plurality of ball assemblies are installed in the lubricating assembly; the lubricating assembly comprises a lubricating rail groove which is formed in the upper end surface of the POM base, and a buffer damping assembly is arranged on the side wall of the lubricating rail groove; the buffer damping assembly comprises an embedded groove which is formed in the groove wall of the lubricating rail groove, a plurality of micro elastic members which are distributed at equal angles are fixedly installed in the embedded groove, and a composite damping strip which is embedded in the embedded groove is abutted against one end of the micro elastic member. Through the elastic deformation characteristics of the micro elastic member, such as compression under pressure, unloading rebound, the present application realizes the pure mechanical load adaptive damping adjustment: the damping is automatically increased to prevent self-rotation and shaking under heavy load, and the damping is automatically reduced to ensure smooth rotation under light load, so that the defects of the traditional product, such as single hand feeling and poor adaptability, are solved.

Description

Technical Field

[0001] This invention relates to the field of POM rotating base technology for dining tables, specifically a POM rotating base with silent and wear-resistant functions. Background Technology

[0002] A POM (Polyoxymethylene) swivel base is a rotatable support component made of polyoxymethylene (POM, also known as acetal). Its core function is to achieve smooth rotation through a low-friction, wear-resistant structural design, making it widely used in scenarios requiring precise positioning, pressure distribution, or reduced wear. A swivel base for a dining table is an indispensable auxiliary component in modern dining settings. Its main function is to support the turntable, enabling its smooth rotation and facilitating the diners' access to food. It is widely used in various settings such as family dining tables, hotel private rooms, and outdoor dining. Currently, most dining table swivel bases on the market are made of POM (polyoxymethylene), which has become the mainstream material due to its inherent self-lubricating properties, wear resistance, and mechanical strength.

[0003] A search revealed a conveniently replaceable dining table turntable with application number 202110113402.2, comprising a rotating base with a hollow internal structure. A support plate is fixedly installed at the center of the rotating base, and a rotating plate is movably installed on the upper end of the support plate. A sealing strip is fixedly connected to the edge of the rotating base, and the sealing strip has several L-shaped slots. A fixing ring is provided on the upper end of the rotating plate, and several L-shaped blocks are fixedly connected to the lower end of the fixing ring. The rotating plate is located between the fixing ring and the sealing strip, and the L-shaped blocks are fixedly engaged in the L-shaped slots. A rotating assembly is fixedly installed near the edge of the rotating base, and the rotating assembly includes a first rotating bar and a second rotating bar, wherein rotating beads are movably installed on the upper ends of both the first and second rotating bars.

[0004] The damping structure of existing POM rotating bases is mostly fixed, and the damping force cannot be dynamically and adaptively adjusted according to the load and rotation speed during actual use. When the load is large, the fixed damping force is insufficient to counteract the inertia brought by the heavy load, which can easily cause the turntable to rotate on its own, wobble, or even deviate, posing a safety hazard. When the load is small, the fixed damping force is too large, which makes the turntable rotate stiffly and laboriously, resulting in poor operation and making it difficult to meet the needs of different users such as the elderly and children, as well as the needs of scenarios where light and heavy loads need to be switched. Summary of the Invention

[0005] The purpose of this invention is to provide a POM rotating base with silent and wear-resistant function. Through the elastic deformation characteristics of micro elastic elements under pressure compression and rebound after force relief, the load adaptive damping adjustment is achieved purely mechanically: under heavy load, the damping is automatically increased to prevent self-rotation and swaying, and under light load, the damping is automatically reduced to ensure smooth rotation. This solves the defects of traditional products such as monotonous feel and poor adaptability, and addresses the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a POM rotating base with silent and wear-resistant function, comprising a POM base, and further comprising: a POM top seat rotatably mounted on the upper end of the POM base, a lubrication assembly provided on the upper end surface of the POM base, a plurality of ball bearing assemblies installed in the lubrication assembly, the lubrication assembly including a lubrication groove formed on the upper end surface of the POM base, and a buffer damping assembly provided on the side wall of the lubrication groove; The buffer damping assembly includes an insert groove formed on the wall of the lubrication rail groove. Multiple micro elastic elements are fixedly installed inside the insert groove, and one end of each micro elastic element abuts against a composite damping strip embedded inside the insert groove.

[0007] Preferably, the surfaces in contact between the composite damping strip and the POM top seat are both arc-shaped surfaces, and the cross-section of the composite damping strip is a T-shaped cross-section.

[0008] Preferably, the lubrication assembly includes an annular channel formed inside the composite damping strip, one side of the annular channel is connected to an injection channel formed inside the composite damping strip, and an injection pipe that communicates with the annular channel is flexibly connected to the outer wall of the composite damping strip.

[0009] Preferably, an assembly connection hole is provided on the inner wall of the lubrication rail groove, and an oil passage is fixedly installed inside the assembly connection hole.

[0010] Preferably, a buffer sealing assembly is fixedly installed on the upper surface of the POM base. The buffer sealing assembly includes a corrugated sleeve fixedly installed on the upper surface of the POM base. The upper end of the corrugated sleeve is provided with a silicone sealing ring groove and an annular sealing ring groove.

[0011] Preferably, a silicone sealing ring is embedded inside the silicone sealing ring groove, and an annular sealing ring is embedded inside the annular sealing ring groove, wherein the annular sealing ring has an open design.

[0012] Preferably, the ball assembly includes a POM coating layer, grooves, and balls. The POM coating layer covers the outer surface of the balls, and multiple grooves are formed on the end faces of the POM coating layer and the balls.

[0013] Preferably, a support component is provided between the POM base and the POM top seat. The support component includes a rolling groove formed inside the upper end of the POM base, and the upper opening of the rolling groove corresponds to the end of the oil passage.

[0014] Preferably, four bearing rods are fixedly installed on the bottom end face of the POM top seat, and rollers located inside the rolling groove are installed at the bottom end of the bearing rods.

[0015] Preferably, the bottom end of the POM base is provided with a plurality of base mounting holes distributed at equal angles, and the upper end surface of the POM top seat is provided with a plurality of top seat mounting holes distributed at equal angles.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: When the load changes, the vertical pressure of the POM top seat is converted into radial extrusion force and acts on the composite damping strip. The micro elastic element undergoes compression or rebound deformation, and the clamping force between the damping strip and the top seat is adjusted in real time. Under heavy load, the damping is increased to prevent the turntable from rotating freely and making abnormal noises. Under light load, the damping is reduced to ensure smooth and easy rotation. During the rotation speed change, the vibration and impact generated by the rotation are transmitted to the micro elastic element through the composite damping strip. The flexible buffering characteristics of the elastic element are used to absorb vibration and eliminate hard contact collisions, suppressing friction noise from the source. Combined with the lubricating oil film on the contact surface, long-term quiet operation is achieved.

[0017] The present invention comprises a filling pipe, annular channel, injection channel, and oil passage forming a connected oil guiding structure, which can synchronously deliver lubricating grease to the lubrication rail groove and rolling groove, continuously and evenly supplying oil to the ball assembly, rollers, and various friction contact surfaces; the grooves on the surface of the ball assembly can store lubricating grease for a long time, and with the wear-resistant properties of the POM coating, each moving friction pair always maintains oil film protection, greatly reducing component wear, avoiding dry friction and jamming, and extending the service life of the overall base.

[0018] The load-bearing component of this invention distributes the vertical load of the POM top seat through the load-bearing rod and rollers, thus sharing the overall load-bearing pressure. The ball bearing component undertakes the circumferential rotational motion. The two work together to ensure that the structure is stable and not easily deformed when the dining table turntable is placed under heavy load, while effectively reducing the rotational resistance of the POM top seat, thus achieving both load-bearing stability and smooth rotation.

[0019] The wave-shaped sleeve at the upper end of the POM base of this invention, together with a silicone sealing ring and an annular sealing ring, forms a multi-layer sealing structure. This prevents dust, water stains, and oil from the kitchen environment from entering the rail groove, thus preventing lubrication medium loss and friction pair jamming, and ensuring the long-term stable operation of the damping structure and ball bearing assembly. The wave-shaped sleeve, combined with the double-layer sealing ring, forms a fully enclosed sealing protection structure, which can effectively prevent water stains, oil stains, dust, and impurities from the kitchen environment from entering the internal rail groove and mating gap of the base. On the one hand, it prevents lubricating grease leakage and oil passage blockage, ensuring the continuous and stable operation of the lubrication system; on the other hand, it prevents impurities from jamming the balls, rollers, micro elastic parts, and composite damping strips, preventing damping structure failure and rotational motion jamming, and ensuring the long-term stable and reliable operation of all linkage components. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure in this invention; Figure 2 This is a schematic diagram of the connection between the POM base and the POM top in this invention; Figure 3 This is a schematic cross-sectional view of the lubrication groove in this invention; Figure 4 This is a schematic diagram of the connection structure of the load-bearing component in this invention; Figure 5 In this invention Figure 3 A magnified schematic diagram of the structure at point B in the middle; Figure 6 In this invention Figure 4 A magnified view of the structure at point A in the middle; Figure 7 This is a partial structural diagram of the composite damping strip in this invention; Figure 8 This is a schematic diagram of the buffer sealing assembly structure in this invention; Figure 9 This is a schematic diagram of the ball bearing assembly structure in this invention.

[0021] In the diagram: 1. POM base; 11. Base mounting hole; 2. POM top seat; 21. Top seat mounting hole; 3. Lubrication assembly; 301. Filling pipe; 302. Annular channel; 303. Injection channel; 304. Lubrication rail groove; 305. Assembly connection hole; 306. Oil passage; 4. Buffer sealing assembly; 401. Wave sleeve; 402. Silicone sealing ring groove; 403. Annular sealing ring groove; 404. Silicone sealing ring; 405. Annular sealing ring; 5. Ball assembly; 501. POM covering layer; 502. Groove; 503. Ball; 6. Bearing assembly; 601. Rolling groove; 602. Bearing rod; 603. Roller; 7. Buffer damping assembly; 701. Composite damping strip; 702. Embedding groove; 703. Miniature elastic element. Detailed Implementation

[0022] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0023] Please see Figure 1-9 As shown, a POM rotating base with silent and wear-resistant function includes a POM base 1, and further includes: a POM top seat 2 rotatably mounted on the upper end of the POM base 1; multiple base mounting holes 11 evenly distributed at the bottom end of the POM base 1, through which the POM base 1 is connected to the dining table; multiple top seat mounting holes 21 evenly distributed at the upper end surface of the POM top seat 2, through which the POM top seat 2 is connected to the dining table turntable; a lubrication assembly 3 is provided on the upper end surface of the POM base 1, and a plurality of ball bearing assemblies 5 are installed inside the lubrication assembly 3; the lubrication assembly 3 includes openings in... The upper surface of the POM base 1 has a lubrication groove 304, and a buffer damping assembly 7 is provided on the side wall of the lubrication groove 304. The buffer damping assembly 7 includes an insert groove 702 opened in the groove wall of the lubrication groove 304. Multiple miniature elastic elements 703 are fixedly installed inside the insert groove 702. One end of the miniature elastic element 703 abuts against a composite damping strip 701 embedded in the insert groove 702. The surfaces of the composite damping strip 701 and the POM top seat 2 that are in contact with each other are arc-shaped surfaces. The cross section of the composite damping strip 701 is a T-shaped cross section. The miniature elastic element 703 is made of medical-grade silicone spring (or high-elasticity alloy spring).

[0024] By adopting the above technical solution, the lubrication rail groove 304 has an insert groove 702 on its groove wall, and multiple sets of miniature elastic elements 703 arranged at equal angles are fixed in the groove. The outer side of the miniature elastic element 703 always elastically presses against the T-shaped composite damping strip 701. The outer side of the composite damping strip 701 is an arc-shaped contact surface that fits against the arc-shaped surface of the side wall of the POM top seat 2. When the load increases, the POM top seat 2 is pressed down by the vertical load, resulting in a slight radial displacement and compression. The arc-shaped surface of the POM top seat 2 presses against the composite damping strip 701, forcing the composite damping strip 701 to move inward into the insert groove 702, compressing the miniature elastic element 703. After compression deformation, the miniature elastic element 703 elastically... The increased reaction force increases the clamping force between the composite damping strip 701 and the POM top seat 2, and the damping resistance increases simultaneously, preventing the turntable from rotating and wobbling under heavy load and eliminating inertial noise. When the load decreases, the compressive force of the POM top seat 2 decreases, the micro elastic element 703 elastically rebounds and resets, the clamping pressure of the composite damping strip 701 weakens, and the damping resistance decreases, ensuring smooth rotation under light load. When the rotation speed changes, the circumferential vibration and intermittent impact force generated by the rotation continue to act on the composite damping strip 701. The micro elastic element 703 absorbs rotational vibration and buffers hard contact impact through reciprocating micro-compression and rebound, avoiding abnormal noise caused by rigid friction and impact.

[0025] When the load changes, the vertical pressure of the POM top seat 2 is converted into radial extrusion force and acts on the composite damping strip 701. The micro elastic element 703 undergoes compression or rebound deformation, and the adhesion and clamping force between the damping strip and the top seat is adjusted in real time. Under heavy load, the damping is increased to prevent the turntable from rotating freely and shaking with abnormal noise, while under light load, the damping is reduced to ensure smooth and easy rotation. During the rotation speed change, the vibration and impact generated by the rotation are transmitted to the micro elastic element 703 through the composite damping strip 701. The flexible buffering characteristics of the elastic element's reciprocating compression and rebound are used to absorb vibration and eliminate hard contact collisions, suppressing friction noise from the source. Combined with the lubricating oil film on the contact surface, long-term quiet operation is achieved.

[0026] Specifically, such as Figures 2 to 7 and Figure 9 As shown, the lubrication assembly 3 includes an annular channel 302 formed inside the composite damping strip 701. One side of the annular channel 302 is connected to an injection channel 303 formed inside the composite damping strip 701. An injection pipe 301 connected to the annular channel 302 is flexibly connected to the outer wall of the composite damping strip 701. An assembly connection hole 305 is formed on the inner wall of the lubrication rail groove 304. An oil passage 306 is fixedly installed inside the assembly connection hole 305. The ball assembly 5 includes a POM coating layer 501, grooves 502 and balls 503. The POM coating layer 501 covers the outer surface of the balls 503. Multiple grooves 502 are formed on the end faces of the POM coating layer 501 and the balls 503.

[0027] By adopting the above technical solution, lubricating grease is added from the filling pipe 301 into the annular channel 302 of the composite damping strip 701, and then guided to the lubrication rail groove 304 through the injection channel 303 connected to the annular channel 302. At the same time, by continuous filling, the grease can be guided into the rolling groove 601 through the lubrication rail groove 304, the assembly connecting hole 305, and the oil passage 306, continuously replenishing the lubricating medium for the ball assembly 5, the roller 603, and the friction contact surface. The ball assembly 5 is covered with a POM coating layer 501, which, together with the surface groove 502, stores the grease and forms a long-lasting oil film. This reduces hard friction and wear; the filling pipe 301, annular channel 302, injection channel 303, and oil passage 306 form a connected oil guiding structure, which can synchronously deliver lubricating grease to the lubrication rail groove 304 and the rolling groove 601, continuously and evenly supplying oil to the ball assembly 5, roller 603, and each friction contact surface; the groove 502 on the surface of the ball assembly 5 can store lubricating grease for a long time, and with the wear-resistant properties of the POM coating layer 501, each moving friction pair always maintains oil film protection, greatly reducing component wear, avoiding dry friction and jamming, and extending the service life of the overall base.

[0028] Specifically, such as Figure 2 , Figure 3 and Figure 4 As shown, a bearing assembly 6 is provided between the POM base 1 and the POM top seat 2. The bearing assembly 6 includes a rolling groove 601 opened inside the upper end of the POM base 1. The upper opening of the rolling groove 601 corresponds to the end of the oil passage 306. Four bearing rods 602 are fixedly installed on the bottom end face of the POM top seat 2. Rollers 603 located inside the rolling groove 601 are installed at the bottom end of the bearing rods 602.

[0029] By adopting the above technical solution, the POM top seat 2 bears the load of the dining table turntable and materials. When rotating, the bottom support rod 602 and roller 603 of the POM top seat 2 roll and cooperate in the rolling groove 601 of the POM base 1 to form a stable auxiliary support structure. The ball assembly 5 arranged inside the lubrication rail groove 304 serves as the main rotating friction pair to reduce the circumferential rotational resistance of the top seat. The support component 6 distributes the vertical load of the POM top seat 2 through the support rod 602 and roller 603, sharing the overall load-bearing pressure. The ball assembly 5 undertakes the circumferential rotational motion. The two work together to ensure that the structure is stable and not easily deformed when the dining table turntable is placed under heavy load, and effectively reduces the rotational resistance of the POM top seat 2, achieving both load-bearing stability and smooth rotation.

[0030] Specifically, such as Figure 5 , Figure 6 and Figure 8As shown, a buffer sealing assembly 4 is fixedly installed on the upper end face of the POM base 1. The buffer sealing assembly 4 includes a wave sleeve 401 fixedly installed on the upper end face of the POM base 1. The upper end of the wave sleeve 401 is provided with a silicone sealing ring groove 402 and an annular sealing ring groove 403. A silicone sealing ring 404 is embedded inside the silicone sealing ring groove 402, and an annular sealing ring 405 is embedded inside the annular sealing ring groove 403. The annular sealing ring 405 is an open design.

[0031] The corrugated sleeve 401 at the upper end of the POM base 1, together with the silicone sealing ring 404 and the annular sealing ring 405, forms a multi-layer sealing structure. This prevents dust, water stains, and oil from the kitchen environment from entering the rail groove, thus preventing the loss of lubricating medium and the jamming of the friction pair. This ensures the long-term stable operation of the damping structure and the ball assembly 5. The corrugated sleeve, combined with the double-layer sealing ring, forms a fully enclosed sealing protection structure, which can effectively prevent water stains, oil stains, dust, and impurities from the kitchen environment from entering the rail groove and mating gap inside the base. On the one hand, it prevents the leakage of lubricating grease and the blockage of oil passages, ensuring the continuous and stable operation of the lubrication system. On the other hand, it prevents impurities from jamming the ball 503, roller 603, miniature elastic element 703, and composite damping strip 701, preventing the damping structure from failing and the rotational movement from jamming, ensuring the long-term stable and reliable operation of all linkage components.

[0032] Working principle: The POM top seat 2 supports the turntable and material load. When rotating, the bottom support rod 602 and roller 603 of the POM top seat 2 roll and cooperate in the rolling groove 601 of the POM base 1 to form a stable auxiliary support structure. The ball assembly 5 arranged inside the lubrication rail groove 304 serves as the main rotating friction pair to reduce the circumferential rotation resistance of the top seat.

[0033] Lubricating grease is added to the annular channel 302 of the composite damping strip 701 through the filling pipe 301, and then guided to the lubrication rail groove 304 through the injection channel 303 connected to the annular channel 302. At the same time, by continuous filling, the grease can be guided to the rolling groove 601 through the lubrication rail groove 304, the assembly connecting hole 305, and the oil passage 306, continuously replenishing the lubricating medium for the ball assembly 5, the roller 603, and the friction contact surface. The ball assembly 5 is covered with a POM coating layer 501, which, together with the surface groove 502, stores the grease and forms a long-lasting oil film, reducing hard friction and wear.

[0034] The lubrication rail groove 304 has an insert groove 702 on its wall, within which multiple sets of miniature elastic elements 703 are fixed at equal angles. The outer side of each miniature elastic element 703 always elastically presses against the T-shaped composite damping strip 701. The outer side of the composite damping strip 701 is an arc-shaped contact surface that fits against the arc-shaped side wall of the POM top seat 2. When the load increases, the POM top seat 2 is subjected to vertical load and downward pressure, resulting in a slight radial offset and compression. The arc-shaped surface of the POM top seat 2 presses against the composite damping strip 701, forcing the composite damping strip 701... The micro elastic element 703 is compressed as it moves inward into the mounting groove 702. After the micro elastic element 703 is compressed and deformed, the elastic reaction force increases, which increases the clamping force between the composite damping strip 701 and the POM top seat 2. The damping resistance increases simultaneously, preventing the turntable from rotating or shaking under heavy load and eliminating inertial noise. When the load decreases, the squeezing force of the POM top seat 2 decreases, the micro elastic element 703 elastically rebounds and resets, the clamping pressure of the composite damping strip 701 weakens, and the damping resistance decreases, ensuring smooth and gentle rotation under light load.

[0035] When the rotational speed changes, the circumferential vibration and intermittent impact force generated by the rotation continue to act on the composite damping strip 701. The micro elastic element 703 absorbs the rotational vibration and buffers the hard contact impact through reciprocating micro compression and rebound, avoiding abnormal noise caused by rigid friction and impact.

[0036] The wave-shaped sleeve 401 on the upper end of the POM base 1, together with the silicone sealing ring 404 and the annular sealing ring 405, forms a multi-layer sealing structure to prevent dust, water stains and oil stains in the kitchen environment from entering the inside of the rail groove, prevent the loss of lubricating medium and the sticking of friction pairs, and ensure the long-term stable operation of the damping structure and ball assembly 5.

[0037] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any indirect modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A POM rotating base with silent and wear-resistant function, comprising a POM base, characterized in that, Also includes: A POM top seat is rotatably mounted on the upper end of the POM base. A lubrication assembly is provided on the upper surface of the POM base. A plurality of ball bearing assemblies are installed in the lubrication assembly. The lubrication assembly includes a lubrication groove formed on the upper surface of the POM base. A buffer damping assembly is provided on the side wall of the lubrication groove. The buffer damping assembly includes an insert groove formed on the wall of the lubrication rail groove. Multiple micro elastic elements are fixedly installed inside the insert groove, and one end of each micro elastic element abuts against a composite damping strip embedded inside the insert groove.

2. The POM rotating base with silent and wear-resistant function according to claim 1, characterized in that: The surfaces in contact with the composite damping strip and the POM top seat are both arc-shaped, and the cross-section of the composite damping strip is a T-shaped cross-section.

3. A POM rotating base with silent and wear-resistant function according to claim 2, characterized in that: The lubrication assembly includes an annular channel formed inside the composite damping strip, one side of which is connected to an injection channel formed inside the composite damping strip, and an injection pipe that is softly connected to the outer wall of the composite damping strip and communicates with the annular channel.

4. A POM rotating base with silent and wear-resistant function according to claim 3, characterized in that: An assembly connection hole is provided on the inner wall of the lubrication rail groove, and an oil passage is fixedly installed inside the assembly connection hole.

5. A POM rotating base with silent and wear-resistant function according to claim 4, characterized in that: A buffer sealing assembly is fixedly installed on the upper surface of the POM base. The buffer sealing assembly includes a corrugated sleeve fixedly installed on the upper surface of the POM base. The upper end of the corrugated sleeve is provided with a silicone sealing ring groove and an annular sealing ring groove.

6. A POM rotating base with silent and wear-resistant function according to claim 5, characterized in that: A silicone sealing ring is embedded inside the silicone sealing ring groove, and an annular sealing ring is embedded inside the annular sealing ring groove. The annular sealing ring has an open design.

7. A POM rotating base with silent and wear-resistant function according to claim 6, characterized in that: The ball assembly includes a POM coating layer, grooves, and balls. The POM coating layer covers the outer surface of the balls, and multiple grooves are formed on the end faces of the POM coating layer and the balls.

8. A POM rotating base with silent and wear-resistant function according to claim 7, characterized in that: A support component is provided between the POM base and the POM top seat. The support component includes a rolling groove formed inside the upper end of the POM base, and the upper opening of the rolling groove corresponds to the end of the oil passage.

9. A POM rotating base with silent and wear-resistant function according to claim 8, characterized in that: Four bearing rods are fixedly installed on the bottom end face of the POM top seat, and rollers located inside the rolling groove are installed at the bottom end of the bearing rods.

10. A POM rotating base with silent and wear-resistant function according to claim 9, characterized in that: The bottom end of the POM base is provided with multiple base mounting holes distributed at equal angles, and the upper end surface of the POM top seat is provided with multiple top seat mounting holes distributed at equal angles.

Images