Ceramic valve ball machining device

Abstract

The utility model belongs to the technical field of ceramic valve ball machining, and particularly relates to a ceramic valve ball machining device which comprises a fixing device and further comprises a water storage shell, a table board is fixedly installed at the top of the water storage shell, a fixing plate is fixedly installed at the top of the table board, a through groove is formed in the top of the table board, and an installation frame is installed in the through groove in a sliding mode. An activated carbon filter plate is fixedly mounted in the mounting frame, and one side of the mounting frame penetrates through one side of the through groove and extends to the outside; the first motor is fixedly installed on one side of the fixing plate, the output end of the first motor penetrates through the fixing plate, when the whole device is used, water can be automatically dripped to the ceramic valve ball, water does not need to be sprayed by workers, use is more convenient, used water falling on the ceramic valve ball can be filtered, and the water filtering effect is good. And impurities in the water can be filtered out, so that the water can be repeatedly utilized, the waste of a large amount of water resources is avoided, and the use is more environment-friendly.

Description

TECHNICAL FIELD

[0001] The utility model belongs to ceramic valve ball processing technical field especially relates to a ceramic valve ball processing device. BACKGROUND

[0002] The ceramic valve ball is a key part of the valve component, which is mainly made of ceramic material. The ceramic material usually has the advantages of high hardness, high wear resistance, corrosion resistance, etc. Common ceramic materials include alumina ceramic, zirconia ceramic, etc.

[0003] For example, the Chinese patent with publication number CN204308714U discloses a ceramic valve ball processing device, which includes a ceramic valve ball fixing assembly for fixing the ceramic valve ball and a cutter assembly for processing the surface of the ceramic valve ball. The ceramic valve ball fixing assembly includes two fixed bases that are oppositely arranged and can rotate and move forward and backward. A fixing device is movably arranged between the two fixed bases to allow the ceramic valve ball to be placed on it and fixed. A tightening block is arranged on one of the fixed bases corresponding to the fixing device to fix the fixing device between the two fixed bases. The cutter assembly includes a cutter fixing base that can be fed in XYZ three-axis. A rotatable cutter mounting seat is arranged on the cutter fixing base towards the fixing device. A diamond grinding wheel is arranged on the cutter mounting seat corresponding to the fixing device. The product has large feed amount, fast feed speed, and high cutting force, which can efficiently process the surface of the zirconia ceramic valve ball with stable and reliable spherical surface processing quality.

[0004] The above-mentioned patent has the following problems:

[0005] The patent has some disadvantages when in use, such as: the ceramic valve ball generally needs to be sprayed with water during processing to cool the ceramic valve ball being processed and avoid the performance degradation of the ceramic valve ball caused by continuous high temperature. The device can only manually spray water on the ceramic valve ball, which is inconvenient, and a large amount of water is used during processing, which will cause waste of water resources. In view of this, the ceramic valve ball processing device is proposed. CONTENT OF THE UTILITY MODEL

[0006] The utility model aims at providing a ceramic valve ball processing device to solve the problems in the background art.

[0007] Therefore, the utility model provides a ceramic valve ball processing device, which comprises a fixing device and further comprises:

[0008] The top of the water storage shell is fixedly installed with a table top, the top of the table top is fixedly installed with a fixed plate, the top of the table top is provided with a through slot, a mounting frame is slidably installed in the through slot, and an activated carbon filter plate is fixedly installed in the mounting frame.

[0009] A first motor is fixedly installed on one side of the fixed plate, the output end of the first motor penetrates the fixed plate, the fixing device is fixed with the output end of the first motor, and a ceramic valve ball is fixedly installed on the fixing device.

[0010] A second sliding groove is formed in the top of the table top, a sliding plate is slidably installed in the second sliding groove, a second motor is fixedly installed on one side of the sliding plate, and the output end of the second motor penetrates the sliding plate and is fixedly installed with a cutter body.

[0011] A driving assembly is arranged on the table top and used for driving the displacement of the sliding plate.

[0012] A support is fixedly installed on the top of the fixed plate, an L-shaped pipe is fixedly installed in the support, and one end of the L-shaped pipe is located above the ceramic valve ball.

[0013] A water supply assembly is arranged on the water storage shell and used for conveying water in the water storage shell into the L-shaped pipe.

[0014] In the technical solution, when in use, the ceramic valve ball is installed on the fixing device, then the driving assembly is started, the driving assembly drives the sliding plate to displace towards the direction close to the back-shaped frame, so that the cutter body contacts the ceramic valve ball, at this time, the first motor, the second motor and the water supply assembly are powered on and started, the output shaft of the first motor drives the fixing device to rotate, the fixing device drives the ceramic valve ball to rotate, at the same time, the output shaft of the second motor drives the cutter body to rotate, at this time, the water supply assembly conveys water in the water storage shell into the L-shaped pipe, the water in the L-shaped pipe is discharged from the water outlet and falls on the ceramic valve ball, then the water enters the back-shaped frame, under the action of the guide frame, the water can be ensured to fall on the activated carbon filter plate, the activated carbon filter plate can filter the water, so that impurities in the water are filtered out, which is convenient for continuous use, and the filtered water can be reused by being re-entered into the water storage shell.

[0015] When it is necessary to clean the impurities on the activated carbon filter plate, the staff can pull the pull rod upward, which will drive the limiting block to displace upward, at this time, the spring will be extruded and will shrink until the end of the limiting block is extracted from the mounting frame and completely enters the limiting groove, so that the mounting frame is fixed, then the staff can directly pull the mounting frame, so that the mounting frame can be taken out through the through slot.

[0016] In the above technical solution, further, the driving assembly comprises:

[0017] The first electric push rod is fixedly installed at the rear side of the table top, and the output end of the first electric push rod extends to the second sliding groove through the rear side of the table top and is tightly welded with the sliding plate.

[0018] In the present technical solution, the first electric push rod is energized and started, and the output shaft of the first electric push rod will drive the sliding plate to displace towards the direction close to the back-shaped frame.

[0019] In the above technical solution, further, the output shaft of the first electric push rod is in sliding connection with the table top.

[0020] In the present technical solution, it is ensured that the output shaft of the first electric push rod can slide in the table top.

[0021] In the above technical solution, further, the water supply assembly comprises:

[0022] The water pump is fixedly installed at the left side of the water storage shell, the water outlet end of the water pump is tightly welded with the other end of the L-shaped pipe, the water inlet end of the water pump is fixedly installed with a water pipe, one end of the water pipe extends to the inner cavity of the water storage shell through the left side of the water storage shell.

[0023] In the present technical solution, the water pump will draw water in the water storage shell through the water pipe, then the water in the water pipe is delivered to the L-shaped pipe by the water pump, and the water in the L-shaped pipe will be discharged from the water outlet head and fall on the ceramic valve ball.

[0024] In the above technical solution, further, it further comprises:

[0025] The limiting groove is opened in the table top and located at the top of the mounting frame, the limiting block is slidably installed in the limiting groove, one end of the limiting block extends into the mounting frame, the top of the limiting block is fixedly installed with a pull rod, and the spring is sleeved on the pull rod and located in the limiting groove.

[0026] In the technical solution, when the impurities on the activated carbon filter plate need to be cleaned, the staff can pull the pull rod upwards, the pull rod will drive the limiting block to displace upwards, at this time, the spring will be extruded and will shrink until the one end of the limiting block is extracted from the mounting frame and completely enters the limiting groove, so that the mounting frame is released from fixation, then the staff can directly pull the mounting frame, so that the mounting frame can be taken out through the through slot.

[0027] In the above technical solution, further, one end of the limiting groove is inserted into the mounting frame, the two ends of the spring are tightly welded with the inner wall of the limiting groove and the top of the limiting block respectively, and the pull rod is slidingly connected with the table top.

[0028] In the technical solution, one end of the limiting groove is inserted into the mounting frame, the structure of the spring is stable, and the pull rod can slide in the table top.

[0029] In the above technical solution, further, a guide frame is fixedly installed in the through slot, the guide frame is located directly above the activated carbon filter plate, one end of the L-shaped pipe is fixedly installed with a water outlet head, and the water outlet head is located directly above the ceramic valve ball.

[0030] In the technical solution, under the action of the guide frame, water can be guided to fall directly on the top of the activated carbon filter plate, and the water in the L-shaped pipe can be discharged from the water outlet head and fall directly on the ceramic valve ball.

[0031] In the above technical solution, further, a first sliding groove is formed in the top of the table and on one side of the through slot, a moving plate is slidingly installed in the first sliding groove, a rotating rod in plug connection with the fixing device is rotatably installed on one side of the moving plate, a second electric push rod is fixedly installed on the left side of the table, the output end of the second electric push rod extends to the first sliding groove through the left side of the table and is tightly welded with the moving plate, and the output shaft of the second electric push rod is slidingly connected with the table.

[0032] In the technical solution, the second electric push rod is energized and started, the output shaft of the second electric push rod drives the moving plate to displace towards the direction close to the meandering frame, one end of the rotating rod is inserted into the fixing device, the fixing device can drive the rotating rod to rotate when rotating, and the fixing device rotates more stably.

[0033] The beneficial effects of the utility model are:

[0034] 1. The ceramic valve ball processing device, through the cooperation between the water storage shell, the L-shaped pipe and the water supply assembly, water can be automatically dropped on the ceramic valve ball, personnel spraying is not needed, and the device is more convenient to use.

[0035] 2. The ceramic valve ball processing device, through the cooperation between the set of meandering frame, guide frame, mounting frame and activated carbon filter plate, can ensure that the used water falling on the ceramic valve ball is filtered, so that the impurities in the water can be filtered out, thereby repeatedly utilizing the water, avoiding waste of a large amount of water resources, and being more environmentally friendly to use. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 It is one of the overall structure schematic diagrams of the utility model;

[0037] Figure 2 It is the second overall structure schematic diagram of the utility model;

[0038] Figure 3 It is a structure schematic diagram of the inside of the table top in the utility model;

[0039] Figure 4 It is an explosion structure schematic diagram of the guide frame and the table top in the utility model;

[0040] Figure 5 It is an explosion structure schematic diagram of the guide frame and the table top in the utility model; Figure 4

[0041] Figure 6 It is a structure schematic diagram of the mounting frame and the guide frame in the utility model;

[0042] Figure 7 It is an explosion structure schematic diagram of the fixing device and the rotating rod in the utility model.

[0043] The marks in the figure are:

[0044] 1, water storage shell; 2, table top; 3, fixed plate; 4, moving plate; 5, meandering frame; 6, first motor; 7, fixing device; 8, L-shaped pipe; 9, cutter body; 10, sliding plate; 11, second motor; 12, first electric push rod; 13, first sliding groove; 14, second electric push rod; 15, mounting frame; 16, water pipe; 17, water pump; 18, support; 19, ceramic valve ball; 20, guide frame; 21, second sliding groove; 22, activated carbon filter plate; 23, through groove; 24, limiting groove; 25, spring; 26, limiting block; 27, rotating rod; 28, pull rod. DETAILED DESCRIPTION

[0045] The following will be combined with the Figures 1-7 The application is further described in detail.

[0046] ​In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0047] Embodiment 1: The present embodiment provides a ceramic valve ball processing device, comprising a fixing device 7, further comprising:

[0048] A water storage shell 1, a table 2 is fixedly installed on the top of the water storage shell 1, a fixing plate 3 is fixedly installed on the top of the table 2, a through slot 23 is formed on the top of the table 2, an installation frame 15 is slidably installed in the through slot 23, an activated carbon filter plate 22 is fixedly installed in the installation frame 15, and the installation frame 15 extends to the outside through one side of the through slot 23;

[0049] A first motor 6 is fixedly installed on one side of the fixing plate 3, the output end of the first motor 6 penetrates the fixing plate 3, the fixing device 7 is fixed with the output end of the first motor 6, and the ceramic valve ball 19 is fixedly installed on the fixing device 7;

[0050] A second sliding groove 21 is formed on the top of the table 2, a sliding plate 10 is slidably installed in the second sliding groove 21, a second motor 11 is fixedly installed on one side of the sliding plate 10, the output end of the second motor 11 penetrates the sliding plate 10 and is fixedly installed with a cutter body 9;

[0051] A driving assembly is located on the table 2 and is used to drive the displacement of the sliding plate 10;

[0052] A support 18 is fixedly installed on the top of the fixing plate 3, an L-shaped pipe 8 is fixedly installed in the support 18, and one end of the L-shaped pipe 8 is located above the ceramic valve ball 19;

[0053] A water supply assembly is located on the water storage shell 1 and is used to deliver water in the water storage shell 1 into the L-shaped pipe 8.

[0054] Wherein, in use, the staff will install ceramic valve ball 19 on the fixed device 7, then, the drive assembly will drive the sliding plate 10 to move towards the direction of approaching the back frame 5, so that the cutter 9 is in contact with the ceramic valve ball 19, at this time, the first motor 6, the second motor 11 and the water supply assembly can be energized and started, the output shaft of the first motor 6 will drive the fixed device 7 to rotate, the fixed device 7 will drive the ceramic valve ball 19 to rotate, at the same time, the output shaft of the second motor 11 will drive the cutter 9 to rotate, at this time, the water supply assembly will transport the water in the water storage shell 1 into the L-shaped pipe 8, the water in the L-shaped pipe 8 will be discharged from the water outlet and fall on the ceramic valve ball 19, then, the water will enter the back frame 5, under the action of the guide frame 20, the water can be ensured to fall on the activated carbon filter plate 22, the activated carbon filter plate 22 can filter the water, so that the impurities in the water are filtered out, facilitating the continuous use, the filtered water will be re-entered into the water storage shell 1, so that the water can be reused;

[0055] When it is necessary to clean the impurities on the activated carbon filter plate 22, the staff can pull the pull rod 28 upwards, the pull rod 28 will drive the limiting block 26 to move upwards, at this time, the spring 25 will be extruded to shrink until the one end of the limiting block 26 is extracted from the mounting frame 15 and completely enters the limiting groove 24, so that the mounting frame 15 is released, then the staff can directly pull the mounting frame 15, so that the mounting frame 15 can be taken out through the through slot 23.

[0056] Embodiment 2: The embodiment provides a ceramic valve ball processing device, in addition to the technical solutions of the above-mentioned embodiments, further having the following technical features, the drive assembly comprises:

[0057] The first electric push rod 12 is fixedly installed on the rear side of the table top 2, the output end of the first electric push rod 12 extends to the second sliding groove 21 through the rear side of the table top 2 and is tightly welded with the sliding plate 10.

[0058] Wherein, the first electric push rod 12 is energized and started, the output shaft of the first electric push rod 12 will drive the sliding plate 10 to move towards the direction of approaching the back frame 5.

[0059] Embodiment 3: The embodiment provides a ceramic valve ball processing device, in addition to the technical solutions of the above-mentioned embodiments, further having the following technical features, the output shaft of the first electric push rod 12 is in sliding connection with the table top 2.

[0060] Wherein, the output shaft of the first electric push rod 12 can slide in the table top 2.

[0061] Embodiment 4: The embodiment provides a ceramic valve ball processing device, in addition to comprising the technical scheme of the above-mentioned embodiment, further having the following technical features, the water supply assembly comprises:

[0062] The water pump 17 is fixedly installed on the left side of the water storage shell 1, the water outlet end of the water pump 17 is tightly welded with the other end of the L-shaped pipe 8, and the water inlet end of the water pump 17 is fixedly installed with the water pipe 16, one end of the water pipe 16 penetrates through the left side of the water storage shell 1 and extends into the inner cavity of the water storage shell 1.

[0063] The water pump 17 will extract the water in the water storage shell 1 through the water pipe 16, then the water in the water pipe 16 is transported into the L-shaped pipe 8 by the water pump 17, and the water in the L-shaped pipe 8 will be discharged from the water outlet head and fall on the ceramic valve ball 19.

[0064] Embodiment 5: The embodiment provides a ceramic valve ball processing device, in addition to comprising the technical scheme of the above-mentioned embodiment, further having the following technical features, further comprising:

[0065] The limiting groove 24 is arranged in the top of the installation frame 15, the limiting block 26 is slidably arranged in the limiting groove 24, one end of the limiting block 26 extends into the installation frame 15, the pull rod 28 is fixedly arranged on the top of the limiting block 26, and the spring 25 is arranged on the pull rod 28 and in the limiting groove 24.

[0066] When the impurities on the activated carbon filter plate 22 need to be cleaned, the pull rod 28 can be pulled upwards, the limiting block 26 is displaced upwards, the spring 25 is compressed and shrinks, one end of the limiting block 26 is extracted from the installation frame 15 and completely enters the limiting groove 24, so that the installation frame 15 is unfixed, then the installation frame 15 can be directly pulled out through the through groove 23.

[0067] Embodiment 6: The embodiment provides a ceramic valve ball processing device, in addition to comprising the technical scheme of the above-mentioned embodiment, further having the following technical features, one end of the limiting groove 24 is in plug-in cooperation with the installation frame 15, the two ends of the spring 25 are tightly welded with the inner wall of the limiting groove 24 and the top of the limiting block 26 respectively, and the pull rod 28 is slidably connected with the table top 2.

[0068] The one end of the limiting groove 24 can be inserted into the installation frame 15, the structure of the spring 25 is stable, and the pull rod 28 can slide in the table top 2.

[0069] In this embodiment, under the action of the guide frame 20, water can be guided to fall exactly on the top of the activated carbon filter plate 22, and the water in the L-shaped pipe 8 can be discharged from the water outlet head and fall exactly on the ceramic valve ball 19.

[0070] In this embodiment, under the action of the guide frame 20, water can be guided to fall exactly on the top of the activated carbon filter plate 22, and the water in the L-shaped pipe 8 can be discharged from the water outlet head and fall exactly on the ceramic valve ball 19.

[0071] In this embodiment, under the action of the guide frame 20, water can be guided to fall exactly on the top of the activated carbon filter plate 22, and the water in the L-shaped pipe 8 can be discharged from the water outlet head and fall exactly on the ceramic valve ball 19.

[0072] In this embodiment, under the action of the guide frame 20, water can be guided to fall exactly on the top of the activated carbon filter plate 22, and the water in the L-shaped pipe 8 can be discharged from the water outlet head and fall exactly on the ceramic valve ball 19.

[0073] Working principle: in use, after the staff installs the ceramic valve ball 19 on the fixing device 7, the second electric push rod 14 is powered on and started, the output shaft of the second electric push rod 14 will drive the moving plate 4 to displace towards the direction close to the back-shaped frame 5, so that one end of the rotating rod 27 is inserted into the fixing device 7, then, the first electric push rod 12 is powered on and started, the output shaft of the first electric push rod 12 will drive the sliding plate 10 to displace towards the direction close to the back-shaped frame 5, so that the cutter body 9 contacts with the ceramic valve ball 19, at this time, the first motor 6, the second motor 11 and the water pump 17 can be powered on and started, the output shaft of the first motor 6 will drive the fixing device 7 to rotate, the fixing device 7 will drive the ceramic valve ball 19 to rotate, the fixing device 7 will also drive the rotating rod 27 to rotate, at the same time, the output shaft of the second motor 11 will drive the cutter body 9 to rotate, at this time, the water pump 17 will extract the water in the water storage shell 1 through the water pipe 16, then, the water in the water pipe 16 is transported to the L-shaped pipe 8 by the water pump 17, the water in the L-shaped pipe 8 will be discharged from the water outlet and fall on the ceramic valve ball 19, then, the water will enter the back-shaped frame 5, under the action of the guide frame 20, the water can be ensured to fall on the activated carbon filter plate 22, the activated carbon filter plate 22 can filter the water, so that the impurities in the water are filtered out, facilitating the continuous use, the filtered water will re-enter the water storage shell 1, so that the water can be reused;

[0074] When it is needed to clean the impurities on the activated carbon filter plate 22, the staff can pull the pull rod 28 upwards, the pull rod 28 will drive the limiting block 26 to displace upwards, at this time, the spring 25 subjected to extrusion will contract, until one end of the limiting block 26 is extracted from the installation frame 15 and completely enters the limiting groove 24, so that the installation frame 15 is unfixed, then the staff can directly pull the installation frame 15, so that the installation frame 15 can be taken out through the through slot 23.

[0075] The embodiments of the present application are described above in combination with the drawings, the embodiments and the features in the embodiments in the present application can be combined with each other without conflict, the present application is not limited to the above-mentioned specific embodiments, the above-mentioned specific embodiments are only illustrative, not restrictive, the ordinary skilled in the art can make many forms without departing from the purpose of the present application and the scope protected by the claims under the inspiration of the present application, all of which belong to the protection of the present application.

Claims

1. A ceramic valve ball machining device comprising a fixture (7), characterized in that, Also include: Water storage shell (1), the top of the water storage shell (1) is fixedly installed with the table top (2), the top of the table top (2) is fixedly installed with the fixed plate (3), the top of the table top (2) is provided with the through slot (23), the installation frame (15) is slidably installed in the through slot (23), the active carbon filter plate (22) is fixedly installed in the installation frame (15), one side of the installation frame (15) penetrates one side of the through slot (23) and extends to the outside; The first motor (6) is fixedly installed on one side of the fixed plate (3), the output end of the first motor (6) penetrates the fixed plate (3), the fixed device (7) is fixed with the output end of the first motor (6), the ceramic valve ball (19) is fixedly installed on the fixed device (7); The second sliding groove (21) is formed in the top of the table top (2), the sliding plate (10) is slidably installed in the second sliding groove (21), the second motor (11) is fixedly installed on one side of the sliding plate (10), the output end of the second motor (11) penetrates the sliding plate (10) and is fixedly installed with the cutter body (9); The driving assembly is located on the table top (2) and is used for driving the sliding plate (10) to displace; The bracket (18) is fixedly installed on the top of the fixed plate (3), the L-shaped pipe (8) is fixedly installed in the bracket (18), one end of the L-shaped pipe (8) is located above the ceramic valve ball (19); The water supply assembly is located on the water storage shell (1) and is used for conveying water in the water storage shell (1) into the L-shaped pipe (8).

2. The ceramic valve ball machining device according to claim 1, wherein, The driving assembly comprises: The first electric push rod (12) is fixedly installed on the rear side of the table top (2), the output end of the first electric push rod (12) extends to the second sliding groove (21) through the rear side of the table top (2) and is tightly welded with the sliding plate (10).

3. The ceramic valve ball machining apparatus according to claim 2, wherein The output shaft of the first electric push rod (12) is slidably connected with the table top (2).

4. The ceramic valve ball machining apparatus of claim 1, wherein The water supply assembly comprises: The water pump (17) is fixedly installed on the left side of the water storage shell (1), the water outlet end of the water pump (17) is tightly welded with the other end of the L-shaped pipe (8), the water inlet end of the water pump (17) is fixedly installed with the water pipe (16), one end of the water pipe (16) penetrates the left side of the water storage shell (1) and extends into the inner cavity of the water storage shell (1).

5. The ceramic valve ball machining apparatus of claim 1, wherein Also include: The limiting groove (24) is formed in the table top (2) and is located on the top of the installation frame (15), the limiting block (26) is slidably installed in the limiting groove (24), one end of the limiting block (26) extends into the installation frame (15), the pull rod (28) is fixedly installed on the top of the limiting block (26), the spring (25) is sleeved on the pull rod (28) and is located in the limiting groove (24).

6. The ceramic valve ball machining apparatus according to claim 5, wherein One end of the limiting groove (24) is plugged with the mounting frame (15), both ends of the spring (25) are tightly welded with the inner wall of the limiting groove (24) and the top of the limiting block (26) respectively, and the pull rod (28) is slidingly connected with the table top (2).

7. The ceramic valve ball machining apparatus of claim 1, wherein The guiding frame (20) is fixedly installed in the through groove (23), the guiding frame (20) is located directly above the activated carbon filter plate (22), one end of the L-shaped pipe (8) is fixedly installed with a water outlet head, and the water outlet head is located directly above the ceramic valve ball (19).

8. The ceramic valve ball machining apparatus of claim 1, wherein, A first sliding groove (13) is formed in the top of the table top (2) and on one side of the through groove (23), the first sliding groove (13) is slidingly installed with a moving plate (4), one side of the moving plate (4) is rotatably installed with a rotating rod (27) which is plugged with the fixing device (7), a second electric push rod (14) is fixedly installed on the left side of the table top (2), the output end of the second electric push rod (14) extends to the first sliding groove (13) through the left side of the table top (2) and is tightly welded with the moving plate (4), and the output shaft of the second electric push rod (14) is slidingly connected with the table top (2).

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