Composite marble slab table top and processing equipment thereof

Abstract

The invention relates to the technical field of stone slab machining, and discloses a composite marble slab table top and machining equipment thereof.The composite marble slab table top comprises a base, a water tank is formed in the top of the base, a transmission belt is fixedly connected to the inner wall of the water tank, and a first sliding groove is formed in the top of the base; a first sliding groove is formed in the top of the base, a threaded column is rotationally connected to the inner wall of the first sliding groove through a bearing, a first motor is fixedly connected to the outer wall of the base, the output end of the first motor is fixedly connected with the threaded column, and a protruding plate is fixedly connected to the top of the base. When a plate is placed on a U-shaped plate III, the placing assembly is deflected forwards firstly, so that when the plate is placed on the U-shaped plate III, the plate falls to the bottom of the U-shaped plate III under the own weight, the bottom of the plate is in contact with a stress plate II, the plate is fixed in the vertical direction at the moment, and the plate processing effect of the equipment is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of stone slab processing, in particular to a composite marble slab table top and processing equipment thereof. Background Art

[0002] Composite marble slabs are a kind of decorative material made of natural marble and other materials. They are usually made of natural marble thin slabs as the surface layer, and are compounded with different base materials such as ceramics, stone, glass fiber reinforced cement, aluminum honeycomb, etc. through specific adhesives.

[0003] A patent application with application number CN202210848148.5 discloses a composite marble slab countertop and processing equipment thereof, the structure of which includes a frame, a fixed seat is provided on the top of the frame, a punching head is provided in the middle of the top surface of the fixed seat, a control panel is provided on one side of the frame, a positioning seat is provided at the bottom of the frame, a rubber sleeve hot melt structure is embedded in the middle of the positioning seat, the rubber sleeve hot melt structure includes a positioning plate and a drive housing, the drive housing is provided at the lower end of the positioning plate, and a telescopic channel penetrating the drive housing is provided in the middle of the positioning plate. The composite marble slab countertop adopts a full rubber lining structure formed by cooperating with the inner wall of the groove to improve the sealing degree, and the processing equipment of the composite marble slab countertop is directly sealed after pressing, which improves convenience.

[0004] When the above-mentioned equipment is in use, it is unable to effectively determine the position of the plate, which results in deviations in the opening position when the equipment processes the plate, thus affecting the production of the equipment. Summary of the invention

[0005] The object of the present invention is to provide a composite marble slab table top and processing equipment thereof to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a composite marble slab countertop processing equipment, including a base, a water tank is provided on the top of the base, and a conveyor belt is fixedly connected to the inner wall of the water tank. When the equipment is in use, the water tank will be filled, so that after the slab is cut, the fertilizer will automatically fall into the water tank. Due to the tension and buoyancy of the water surface, the falling fertilizer is prevented from causing damage to the equipment. At the same time, the conveyor belt will move the fertilizer to one side for the convenience of staff to take it. A slide groove 1 is provided on the top of the base, and the inner wall of the slide groove 1 is rotatably connected to a threaded column through a bearing. The outer wall of the base is fixedly connected to a motor 1, and the output end of the motor 1 is fixed to the threaded column. The top of the base is fixedly connected with a raised plate, wherein the height of the raised plate is consistent with the U-shaped plate three, so that it is convenient for the toggle assembly to drag the plate while keeping a distance between the plate and the base bracket, so that the staff can take the processed plate out of the equipment. The top of the base is fixedly connected with a driving device 1, and the inner wall of the driving device 1 is fixedly connected with a push rod 1, and the left and right ends of the plate are clamped in the center by the push of the push rod 1, so as to further improve the positioning effect of the equipment on the plate. The front end of the base is fixedly connected with a base, and the top of the base is fixedly connected with a slide rail, and the outer wall of the base is fixedly connected with the slide rail, and the outer wall of the slide rail is movably connected with a placement component, and also includes:

[0007] The toggle assembly comprises a slider 1 movably connected to the inner wall of a slide groove, the inner wall of the slider 1 is threadedly connected to a threaded column, the top of the slider 1 is fixedly connected to a connecting plate 1, the end of the connecting plate 1 away from the slider 1 is rotatably connected to a force-bearing plate 1 through a bearing, the outer wall of the force-bearing plate 1 is fixedly connected to a U-shaped plate 1, the inner wall of the U-shaped plate 1 is fixedly connected to a connecting rod, the inner wall of the connecting plate 1 away from one end of the slider 1 is fixedly connected to a push rod 2, the end of the push rod 2 away from the connecting plate 1 is fixedly connected to the slide groove plate, the inner wall of the slide groove plate is movably connected to the connecting rod, and by setting the toggle assembly, the processed plate can be dragged out of the equipment, which is convenient for the staff to take it.

[0008] According to the above technical solution, the inner wall of the driving device one is movably connected to the driving device two, the outer wall of the driving device two is movably connected to the sliding frame, the inner wall of the sliding frame is fixedly connected to the water knife, the position of the water knife is controlled by the driving device one and the driving device two, and then the central part of the plate is cut.

[0009] According to the above technical scheme, the placement component includes a U-shaped plate 2, the outer wall of the U-shaped plate 2 is fixedly connected to a motor 2, a slide groove 2 is opened on the side of the U-shaped plate 2 close to the base, the inner wall of the slide groove 2 is movably connected to the track, the inner wall of the U-shaped plate 2 is rotatably connected to a connecting plate 2 through a bearing, the outer wall of the connecting plate 2 is fixedly connected to a U-shaped plate 3, the side of the connecting plate 2 away from the U-shaped plate 3 is fixedly connected to a connecting head, the inner wall of the connecting head is rotatably connected to an auxiliary component through a bearing, and when it is necessary to process the unprocessed plate, the placement component will be deflected forward first, so that when the plate is placed on the U-shaped plate 3, the plate will fall to the bottom of the U-shaped plate 3 under its own weight, and the bottom of the plate will contact the force-bearing plate 2. At this time, the plate is fixed in the vertical position to ensure the effect of the equipment in processing the plate.

[0010] According to the above technical solution, a through hole is provided on the outer shell of the connecting plate 2, a circular hole is provided on the top of the connecting plate 2, the circular hole penetrates the connecting plate 2 and extends into the through hole, an elastic component is fixedly connected to the inner wall of the connecting plate 2, an adjustment component is fixedly connected to the top of the elastic component, and a push rod 3 is fixedly connected to the inner wall of the connecting plate 2.

[0011] According to the above technical solution, the adjustment component includes a connecting plate three, the bottom of the connecting plate three is fixedly connected to the elastic component, the bottom of the connecting plate three is fixedly connected with a positioning column, the outer wall of the positioning column is movably connected to the circular hole, and after the auxiliary component completes the rotation, the auxiliary component will be fixed to prevent the elastic force of the auxiliary component from pushing the plate away after the component is placed flat, thereby affecting the normal processing of the equipment. At the same time, after the processing of the plate is completed, the lock of the auxiliary component will be released, allowing the force-bearing plate to push the plate out, making it convenient for the staff to take it.

[0012] According to the above technical solution, the auxiliary component includes a cylinder, the outer wall of the connecting head is rotatably connected to the cylinder through a bearing, the outer wall of the cylinder is fixedly connected to an elastic arc plate, the end of the elastic arc plate away from the cylinder is fixedly connected to a friction plate, the outer wall of the cylinder is fixedly connected to a connecting plate four, the inner wall of the connecting plate four is fixedly connected to a connecting column, and both ends of the connecting column are fixedly connected to a slider two.

[0013] The cam is provided with a plurality of springs, one end of which is fixedly connected to the second supporting plate, and the other end of which is fixedly connected to the second supporting plate.

[0014] A composite marble slab table top, wherein a composite marble slab is arranged on the top of a U-shaped plate three, and a placement groove is opened on the top of the composite marble slab.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0016] 1. The present invention sets a placement component. When the unprocessed plate needs to be processed, the placement component will be deflected forward first. This makes the plate fall to the bottom of the U-shaped plate three under its own weight when it is placed on the U-shaped plate three. The bottom of the plate contacts the force-bearing plate two. At this time, the plate is fixed in the vertical direction, ensuring the effect of the equipment in processing the plate.

[0017] 2. The present invention sets an auxiliary component. After the plate is placed on the U-shaped plate three, it will drive the elastic arc plate and the friction plate to press on the top of the plate. This can ensure that the position of the plate will not move when the placement component rotates, thereby ensuring the normal operation of the equipment.

[0018] 3. The present invention sets an adjustment component to fix the auxiliary component after the auxiliary component completes its rotation, so as to prevent the elastic force of the auxiliary component from pushing the plate away after the component is placed flat, thereby affecting the normal processing of the equipment. At the same time, after the processing of the plate is completed, the auxiliary component will be unlocked to allow the force-bearing plate to push the plate out, making it convenient for the staff to take it.

[0019] 4. The present invention provides a toggle assembly to drag the processed plate out of the equipment, making it convenient for the staff to take it. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a rear schematic diagram of the overall structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the external structure of the present invention;

[0024] Figure 4 is a schematic diagram of a toggle assembly of the present invention;

[0025] Figure 5 It is a partial structural schematic diagram of the toggle assembly of the present invention;

[0026] Figure 6 is a schematic diagram of the placement assembly of the present invention;

[0027] Figure 7 It is a schematic diagram of the internal structure of the placement component of the present invention;

[0028] Figure 8 is a schematic diagram of an adjustment assembly of the present invention;

[0029] Fig. 9 Schematic diagram of auxiliary components of the present invention.

[0030] In the figure: 1. base; 101. water tank; 102. conveyor belt; 103. slideway 1; 104. threaded column; 105. motor 1; 106. raised plate; 107. drive device 1; 108. push rod 1; 109. drive device 2; 1010. sliding frame; 1011. water jet; 1012. base; 1013. slide rail; 2. toggle assembly; 201. slider 1; 202. connecting plate 1; 203. push rod 2; 204. slideway plate; 205. force plate 1; 206. U-shaped plate 1; 207. connecting rod; 3. placement assembly; 301. U-shaped plate 2; 302. motor 2; 303. slideway 2; 304, connecting plate 2; 305, connector; 306, through hole; 307, round hole; 308, U-shaped plate 3; 309, elastic component; 3010, push rod 3; 31, adjustment component; 311, connecting plate 3; 312, positioning column; 32, auxiliary component; 321, cylinder; 322, elastic arc plate; 323, friction plate; 324, connecting plate 4; 325, connecting column; 326, slider 2; 327, sliding column; 328, positioning hole; 329, force plate 2; 3210, right-angle plate; 3211, spring; 3212, slide groove 3; 4, composite marble plate; 401, placement groove. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0033] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] Example 1: See Figure 1-Figure 5 The present invention provides a technical solution: a composite marble slab countertop processing equipment, including a base 1, a water tank 101 is provided on the top of the base 1, a conveyor belt 102 is fixedly connected to the inner wall of the water tank 101, a chute 103 is provided on the top of the base 1, a threaded column 104 is rotatably connected to the inner wall of the chute 103 through a bearing, a motor 105 is fixedly connected to the outer wall of the base 1, an output end of the motor 105 is fixedly connected to the threaded column 104, a raised plate 106 is fixedly connected to the top of the base 1, and a driving The device 107, the inner wall of the driving device 107 is fixedly connected with a push rod 108, the front end of the base 1 is fixedly connected with a base 1012, the top of the base 1012 is fixedly connected with a slide rail 1013, the outer wall of the base 1 is fixedly connected with the slide rail 1013, the outer wall of the slide rail 1013 is movably connected with a placement component 3, the inner wall of the driving device 107 is movably connected with a driving device 2 109, the outer wall of the driving device 2 109 is movably connected with a sliding frame 1010, and the inner wall of the sliding frame 1010 is fixedly connected with a water jet 1011, and also includes:

[0035] The toggle assembly 2 includes a slider 201 movably connected to the inner wall of the slide groove 103, the inner wall of the slider 201 is threadedly connected to the threaded column 104, the top of the slider 201 is fixedly connected to a connecting plate 202, the end of the connecting plate 202 away from the slider 201 is rotatably connected to a force plate 205 through a bearing, the outer wall of the force plate 205 is fixedly connected to a U-shaped plate 206, the inner wall of the U-shaped plate 206 is fixedly connected to a connecting rod 207, and the connecting rod 207 is fixedly connected to the inner wall of the U-shaped plate 206. The inner wall of plate 1 202 at one end away from slider 1 201 is fixedly connected with push rod 203, and the end of push rod 203 away from connecting plate 1 202 is fixedly connected with slide plate 204, and the inner wall of slide plate 204 is movably connected with connecting rod 207. After the toggle component 2 takes out the processed plate, push rod 203 will be contracted, and then the force-bearing plate 1 205 will be reset, and then the motor 105 will be started to flip, taking the toggle component 2 to reset, so as to facilitate the next dragging.

[0036] The working principle of this embodiment is as follows: when processing the plate, the plate is moved to the top of the placing component 3 through the placing component 3, and at this time, the push rod 108 is started to clamp the left and right sides of the plate, and then the driving device 107 and the driving device 2 109 are started to drive the water knife 1011 to move, and the plate is cut by the water knife 1011. After the cutting is completed, the plate is released by the placing component 3, and the push rod 108 is reset at the same time, and then the push rod 203 is started to drive the U-shaped plate 206 to rotate, and then the rotation of the U-shaped plate 206 drives the force plate 205 to rotate. At this time, the force plate 205 is in a vertical state, and then the motor 105 is started to drive the threaded column 104 to rotate, and the processed plate is removed from the placing component 3 to complete the processing flow of the equipment.

[0037] Example 2: Based on Example 1, please refer to Figure 6-Figure 9 The placement component 3 includes a U-shaped plate 301, the outer wall of the U-shaped plate 301 is fixedly connected to the motor 302, the side of the U-shaped plate 301 close to the base 1 is provided with a slide groove 303, the inner wall of the slide groove 303 is movably connected to the track, the inner wall of the U-shaped plate 301 is rotatably connected to the connecting plate 304 through a bearing, the outer wall of the connecting plate 304 is fixedly connected to the U-shaped plate 308, and the side of the connecting plate 304 away from the U-shaped plate 308 is fixedly connected to the connector 30 5. The inner wall of the connector 305 is rotatably connected with the auxiliary component 32 through a bearing, the outer shell of the second connecting plate 304 is provided with a through hole 306, the top of the second connecting plate 304 is provided with a round hole 307, the round hole 307 penetrates the second connecting plate 304 and extends into the through hole 306, the inner wall of the second connecting plate 304 is fixedly connected with the elastic component 309, the top of the elastic component 309 is fixedly connected with the adjustment component 31, and the inner wall of the second connecting plate 304 is fixedly connected with the push rod 3 3010.

[0038] The adjustment component 31 includes a connecting plate 311, the bottom of which is fixedly connected to the elastic component 309, and a positioning column 312 is fixedly connected to the bottom of the connecting plate 311, and the outer wall of the positioning column 312 is movably connected to the circular hole 307. After the plate is processed, the push rod 3010 on the connecting plate 2 304 is started to drive the connecting plate 311 to move upward. At this time, as the connecting plate 311 moves upward, the positioning column 312 is pulled out of the positioning hole 328. At this time, the sliding column 327 loses the fixation of the positioning column 312, and under the elastic force of the spring 3211, it drives the force plate forward, and then pushes the processed plate out of the placement component 3.

[0039] The auxiliary component 32 includes a cylinder 321, the outer wall of the connector 305 is rotatably connected to the cylinder 321 through a bearing, the outer wall of the cylinder 321 is fixedly connected to an elastic arc plate 322, and the end of the elastic arc plate 322 away from the cylinder 321 is fixedly connected to a friction plate 323, the outer wall of the cylinder 321 is fixedly connected to a connecting plate 4 324, the inner wall of the connecting plate 4 324 is fixedly connected to a connecting column 325, both ends of the connecting column 325 are fixedly connected to a slider 2 326, the inner wall of the through hole 306 is movably connected to a sliding column 327, and the outer wall of the sliding column 327 is provided with a fixed The end of the sliding column 327 away from the cylinder 321 is fixedly connected to the force plate 2 329, and the end of the sliding column 327 away from the force plate 2 329 is fixedly connected to the right-angle plate 3210. The outer wall of the sliding column 327 is sleeved with a spring 3211, and one end of the spring 3211 is fixedly connected to the right-angle plate 3210. The end of the spring 3211 away from the right-angle plate 3210 is fixedly connected to the connecting plate 2 304. The end of the right-angle plate 3210 away from the sliding column 327 is provided with a sliding groove 3212, and the inner wall of the sliding groove 3212 is movably connected to the slider 2 326.

[0040] The working principle of this embodiment is as follows: when the plate needs to be processed, the motor is first started to drive the connecting plate 2 304 to rotate, and then the U-shaped plate 308 is deflected forward, and then the U-shaped plate 2 301 is driven to move downward along the track to facilitate the placement of the plate. When the plate is placed on the U-shaped plate 308, the plate will exert pressure on the force-bearing plate 2 329, and then drive the force-bearing plate to move downward. The downward moving force-bearing plate drives the sliding column 327 to move downward. At this time, the positioning column 312 will be in the elastic force of the connecting plate 311 and the elastic component 309. It is embedded into the positioning hole 328 to fix the auxiliary component 32. As the sliding column 327 moves downward, the right-angle plate 3210 is moved together, and then the sliding block 2 326 is moved through the sliding groove. The moving sliding block 2 326 drives the cylinder 321 to rotate through the connecting column 325 and the connecting plate 4 324. The rotating cylinder 321 drives the elastic arc plate 322 to rotate, and then the friction plate 323 is pressed on the plate through the rotation of the elastic arc plate 322. After the plate is fixed, the placement component 3 is reset.

[0041] A composite marble slab table top, wherein a composite marble slab 4 is arranged on the top of a U-shaped plate 308, and a placement groove 401 is opened on the top of the composite marble slab 4.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A composite marble slab countertop processing device, comprising a base (1), a water tank (101) is provided on the top of the base (1), a conveyor belt (102) is fixedly connected to the inner wall of the water tank (101), a chute (103) is provided on the top of the base (1), a threaded column (104) is rotatably connected to the inner wall of the chute (103) via a bearing, a motor (105) is fixedly connected to the outer wall of the base (1), an output end of the motor (105) is fixedly connected to the threaded column (104), and the base The top of the seat (1) is fixedly connected to a raised plate (106), the top of the base (1) is fixedly connected to a driving device (107), the inner wall of the driving device (107) is fixedly connected to a push rod (108), the front end of the base (1) is fixedly connected to a base (1012), the top of the base (1012) is fixedly connected to a slide rail (1013), the outer wall of the base (1) is fixedly connected to the slide rail (1013), and the outer wall of the slide rail (1013) is movably connected to a placement component (3), characterized in that: Also includes: A toggle assembly (2), the toggle assembly (2) comprising a slider (201) movably connected to the inner wall of a slide groove (103), the inner wall of the slider (201) being threadedly connected to a threaded column (104), the top of the slider (201) being fixedly connected to a connecting plate (202), the end of the connecting plate (202) away from the slider (201) being rotatably connected to a force-bearing plate (205) via a bearing, the outer wall of the force-bearing plate (205) being fixedly connected to a U-shaped plate (206), the inner wall of the U-shaped plate (206) being fixedly connected to a connecting rod (207), the inner wall of the connecting plate (202) away from one end of the slider (201) being fixedly connected to a push rod (203), the end of the push rod (203) away from the connecting plate (202) being fixedly connected to a slide groove plate (204), the inner wall of the slide groove plate (204) being movably connected to the connecting rod (207).

2. The composite marble slab countertop processing equipment according to claim 1 is characterized by: The inner wall of the driving device 1 (107) is movably connected to the driving device 2 (109), the outer wall of the driving device 2 (109) is movably connected to the sliding frame (1010), and the inner wall of the sliding frame (1010) is fixedly connected to the water knife (1011).

3. The composite marble slab countertop processing equipment according to claim 2 is characterized by: The placement component (3) comprises a U-shaped plate 2 (301), the outer wall of the U-shaped plate 2 (301) is fixedly connected to a motor 2 (302), a slide groove 2 (303) is provided on a side of the U-shaped plate 2 (301) close to the base (1), the inner wall of the slide groove 2 (303) is movably connected to a track, the inner wall of the U-shaped plate 2 (301) is rotatably connected to a connecting plate 2 (304) via a bearing, the outer wall of the connecting plate 2 (304) is fixedly connected to a U-shaped plate 3 (308), the side of the connecting plate 2 (304) away from the U-shaped plate 3 (308) is fixedly connected to a connector (305), and the inner wall of the connector (305) is rotatably connected to an auxiliary component (32) via a bearing.

4. The composite marble slab countertop processing equipment according to claim 3 is characterized by: The outer shell of the second connecting plate (304) is provided with a through hole (306), the top of the second connecting plate (304) is provided with a round hole (307), the round hole (307) passes through the second connecting plate (304) and extends into the through hole (306), the inner wall of the second connecting plate (304) is fixedly connected with an elastic component (309), the top of the elastic component (309) is fixedly connected with an adjustment component (31), and the inner wall of the second connecting plate (304) is fixedly connected with a push rod three (3010).

5. The composite marble slab countertop processing equipment according to claim 4 is characterized by: The adjustment component (31) comprises a third connecting plate (311), the bottom of the third connecting plate (311) being fixedly connected to the elastic component (309), the bottom of the third connecting plate (311) being fixedly connected to a positioning column (312), and the outer wall of the positioning column (312) being movably connected to the circular hole (307).

6. The composite marble slab countertop processing equipment according to claim 5 is characterized by: The auxiliary component (32) comprises a cylinder (321), the outer wall of the connecting head (305) is rotatably connected to the cylinder (321) via a bearing, the outer wall of the cylinder (321) is fixedly connected to an elastic arc plate (322), one end of the elastic arc plate (322) away from the cylinder (321) is fixedly connected to a friction plate (323), the outer wall of the cylinder (321) is fixedly connected to a connecting plate four (324), the inner wall of the connecting plate four (324) is fixedly connected to a connecting column (325), and both ends of the connecting column (325) are fixedly connected to a sliding block two (326).

7. The composite marble slab countertop processing equipment according to claim 6 is characterized by: The inner wall of the through hole (306) is movably connected with a sliding column (327), and a positioning hole (328) is provided on the outer wall of the sliding column (327). One end of the sliding column (327) away from the cylinder (321) is fixedly connected with a second force-bearing plate (329), and one end of the sliding column (327) away from the second force-bearing plate (329) is fixedly connected with a right-angle plate (3210). A spring (3211) is sleeved on the outer wall of the sliding column (327), and one end of the spring (3211) is fixedly connected to the right-angle plate (3210). One end of the spring (3211) away from the right-angle plate (3210) is fixedly connected to the second connecting plate (304). One end of the right-angle plate (3210) away from the sliding column (327) is provided with a third sliding groove (3212), and the inner wall of the third sliding groove (3212) is movably connected to the second sliding block (326).

8. A composite marble slab countertop, characterized by: A composite marble slab (4) is arranged on the top of the U-shaped slab three (308), and a placement groove (401) is provided on the top of the composite marble slab (4).

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