Plate soaking device
By introducing clamping components and lifting components into the plate soaking device, the problem of easy deviation or drop in the plate during the immersion process in the prior art is solved, and stable soaking and convenient operation of the plate are achieved.
Patent Information
- Application Number
- CN202420277040.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-05
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-02-05
AI Technical Summary
The existing plate soaking devices lack a fixed structure, which causes the plate to easily deviate or fall when rising or falling, making it inconvenient to use.
A plate soaking device including a base, a soaking box, a lifting assembly and a clamping assembly is designed. The clamping assembly consists of mounting beams, clamping structures, driving structures, etc. The clamping arm clamps the plate through the driving structure adjustment and clamping the plate through the The lifting assembly adjusts the height of the clamping assembly so that the plate is soaked stably in the soaking box.
It effectively solves the problems of offset and drop of the plate when rising or falling, ensures the stability and safety of the plate during the soaking process, and improves the convenience of use.
Smart Images

Figure CN222197654U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of plate processing, in particular to a plate soaking device. Background Art
[0002] Board is a kind of building material with various specifications, and each specification of board has its standard size. It is often used in the fields of interior decoration, furniture making, building baseboard, etc. Generally speaking, the board needs to be soaked after processing, and soaking can make the board have better anti-aging performance, flame retardant performance and corrosion resistance. At present, soaking devices are often used when soaking boards.
[0003] Most of the current soaking devices are provided with a placement panel, and then the plate is placed on the placement panel, and then the height of the placement panel is adjusted by a lifting structure, and the plate is immersed in the soaking liquid to complete the soaking of the plate. However, since the current plate soaking device is not provided with a fixing structure for fixing the plate, the plate is prone to deviation or even falling when rising or falling, which is inconvenient to use.
[0004] In the utility model with application number: CN202221626354.3 and announcement number: CN217888486U, a plate soaking device for plate processing is disclosed, including a base and a soaking box arranged on the top of the base, two groups of fixed blocks are fastened to the top of the base, a hydraulic cylinder is arranged on the outer side of the fixed block, the output end of the hydraulic cylinder is connected to the cross plate key slidably connected in the fixed block, and a connecting block is fastened to the bottom of the cross plate, and the bottoms of the two groups of connecting blocks are fastened to the bottom plate. However, there is still a problem that there is no fixing structure for fixing the plate, and the plate is prone to displacement or even falling when rising or falling, which is inconvenient to use. Utility Model Content
[0005] Based on this, in order to address the above problems, the utility model proposes a plate immersion device, which solves the problem that the current plate immersion device has no fixing structure for fixing the plate, which makes the plate easily deviate or even fall when rising or falling, making it inconvenient to use.
[0006] The technical solution of the utility model is:
[0007] A plate soaking device comprises a base, a soaking box, a lifting assembly and a clamping assembly, wherein the lifting assembly and the soaking box are cooperatively arranged on the base, the clamping assembly is arranged on the lifting assembly, and the lifting assembly is used to adjust the height of the clamping assembly;
[0008] The clamping assembly includes a mounting crossbeam and a pair of clamping structures arranged below the mounting crossbeam, the clamping structures are slidably connected to the mounting crossbeam, and the two clamping structures are cooperatively arranged to place and clamp the plate;
[0009] The clamping structure includes a clamping arm, a mounting plate and a driving structure. A sliding block is provided on the top of the clamping arm, a sliding groove is provided on the mounting beam, the sliding block is slidably connected to the sliding groove, at least one placement plate is provided at the lower end of the clamping arm, the placement plate is used to place the plate, the mounting plate is arranged on one side of the clamping arm, and one end is connected to the mounting beam. The driving structure is arranged between the mounting plate and the clamping arm, and is used to drive the clamping arm to clamp the plate.
[0010] Preferably, the lifting assembly includes a first support arm, a threaded rod, a first slider, a driving motor, a second support arm, a sliding rod and a second slider, the first support arm and the second support arm are arranged on the base and are respectively arranged on both sides of the immersion box, the first support arm is provided with a first mounting groove, the threaded rod is arranged in the first mounting groove and is rotatably connected to the first support arm, the first slider is arranged in the first mounting groove, the first slider is sleeved on the threaded rod and is threadedly connected to the threaded rod, one end of the threaded rod passes through the top of the first support arm and is rotatably connected to the first support arm, the driving motor is arranged at the top of the first support arm, and the output shaft of the driving motor is connected to one end of the threaded rod passing through the top of the first support arm, for driving the threaded rod to rotate, the second support arm is provided with a second mounting groove, the sliding rod and the sliding block are arranged in the second mounting groove, the sliding block is sleeved on the sliding rod and is slidably connected to the sliding rod, one end of the mounting beam is connected to the first slider, and the other end is connected to the second slider.
[0011] Preferably, the driving structure comprises a pair of pneumatic telescopic rods, the telescopic ends of the pneumatic telescopic rods are fixedly connected to the clamping arms, and the other ends of the pneumatic telescopic rods are fixedly connected to the mounting plate.
[0012] Preferably, a shielding plate is arranged between the mounting plate and the clamping arm, the shielding plate is arranged at the lower end of the mounting plate, and the pneumatic telescopic rod is arranged above the shielding plate.
[0013] Preferably, pulleys are provided on both sides of the sliding block, a slideway is provided on the mounting crossbeam and is matched with the pulleys, and the pulley is installed in the slideway and is slidably connected with the slideway.
[0014] Preferably, a pair of hollow grooves are provided on the placement plate.
[0015] Preferably, a circulation component is further included, and a liquid outlet and a liquid inlet are provided at the bottom of one side of the immersion box. The circulation component is arranged in cooperation with the liquid outlet and the liquid inlet on the immersion box to circulate the liquid in the immersion box.
[0016] Preferably, the circulation component includes a circulation box, a first manual valve, a first pump body, a second manual valve and a second pump body, the circulation box is provided with a liquid inlet and a liquid outlet, the liquid inlet is connected to the first pump body through a pipeline, the first pump body is connected to the first manual valve through a pipeline, the first manual valve is connected to the liquid outlet on the immersion box through a pipeline, the liquid outlet is connected to the second pump body through a pipeline, the second pump body is connected to the second manual valve through a pipeline, the second manual valve is connected to the liquid inlet on the immersion box through a pipeline, the circulation box is provided with a drain port, a third manual valve is provided at the drain port, the third manual valve is connected to the drain port through a pipeline, and a plurality of filter elements for filtering impurities are provided in the circulation box.
[0017] Preferably, the circulation box includes a box body and a box cover adapted to the box body, the top of the box body is provided with an opening, the box cover is arranged on the top of the box body for covering the opening, and is detachably connected to the box body.
[0018] Preferably, the filter element includes a frame and a filter screen arranged in the frame, the filter screen is provided with a plurality of liquid flow holes, plug-in blocks are provided on both sides of the frame, and a plug-in groove cooperating with the plug-in block is provided on the inner wall of the box body, and the frame can be plugged into the box body through the cooperation of the plug-in block and the plug-in groove.
[0019] Compared with the prior art, the beneficial effects of the utility model are:
[0020] When in use, the distance between the two clamping structures is first adjusted by the driving structure, and then the plate is placed on the placement plate in the clamping structure, and then the distance between the two clamping structures is adjusted by the driving structure again, so that the clamping arm in the clamping structure clamps the plate, and then the height of the clamping assembly is adjusted by the lifting assembly, so that the plate and the placement plate are immersed in the liquid in the immersion box to complete the immersion, which solves the problem that the current plate immersion device has no fixing structure for fixing the plate, and the plate is prone to deviation or even falling when rising or falling, which is inconvenient to use. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 This is a schematic diagram of the structure of a plate soaking device described in an embodiment of the utility model. Figure 1 ;
[0022] Figure 2 This is a schematic diagram of the structure of a plate soaking device described in an embodiment of the utility model. Figure 2 ;
[0023] Figure 3 This is a schematic diagram of the structure of a plate soaking device described in an embodiment of the utility model. Figure 3 ;
[0024] Figure 4It is a schematic diagram of the internal structure of a circulation component in a plate soaking device described in an embodiment of the utility model;
[0025] Figure 5 It is described in the embodiment of the utility model Figure 4 The structural diagram at A in the middle;
[0026] Description of reference numerals:
[0027] 10-base, 20-immersion box, 200-liquid outlet, 201-liquid inlet, 30-lifting assembly, 300-first support arm, 301-threaded rod, 302-first slider, 303-driving motor, 304-second support arm, 305-sliding rod, 306-second slider, 307-first mounting groove, 308-second mounting groove, 40-clamping assembly, 400-mounting beam, 401-clamping structure, 402-clamping arm, 403-mounting plate, 404-driving structure, 405-sliding block, 406-sliding groove, 407-placement Plate, 408-pneumatic telescopic rod, 409-baffle plate, 410-pulley, 411-slide, 412-hollow groove, 50-circulation component, 500-circulation box, 501-first manual valve, 502-first pump body, 503-second manual valve, 504-second pump body, 505-liquid inlet, 506-liquid outlet, 507-drain port, 508-third manual valve, 509-filter element, 510-box, 511-box cover, 512-frame, 513-filter screen, 514-liquid flow hole, 515-plug block, 516-plug slot. DETAILED DESCRIPTION
[0028] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.
[0029] Example:
[0030] like Figure 1 As shown, in order to solve the above problems, the present embodiment discloses a plate soaking device, comprising a base 10, a soaking box 20, a lifting assembly 30 and a clamping assembly 40, wherein the lifting assembly 30 and the soaking box 20 are cooperatively arranged on the base 10, the clamping assembly 40 is arranged on the lifting assembly 30, and the lifting assembly 30 is used to adjust the height of the clamping assembly 40;
[0031] The clamping assembly 40 includes a mounting beam 400 and a pair of clamping structures 401 disposed below the mounting beam 400. The clamping structures 401 are slidably connected to the mounting beam 400. The two clamping structures 401 are cooperatively disposed to place and clamp the plate.
[0032] The clamping structure 401 includes a clamping arm 402, a mounting plate 403 and a driving structure 404. A sliding block 405 is provided on the top of the clamping arm 402, and a sliding groove 406 is provided on the mounting beam 400. The sliding block 405 is slidably connected to the sliding groove 406. At least one placement plate 407 is provided at the lower end of the clamping arm 402. The placement plate 407 is used to place the plate. The mounting plate 403 is arranged on one side of the clamping arm 402, and one end is connected to the mounting beam 400. The driving structure 404 is arranged between the mounting plate 403 and the clamping arm 402, and is used to drive the clamping arm 402 to clamp the plate.
[0033] When in use, the distance between the two clamping structures 401 is first adjusted through the driving structure 404, and then the plate is placed on the placement plate 407 in the clamping structure 401, and then the distance between the two clamping structures 401 is adjusted through the driving structure 404 again, so that the clamping arm 402 in the clamping structure 401 clamps the plate, and then the height of the clamping assembly 40 is adjusted through the lifting assembly 30, so that the plate and the placement plate 407 are immersed in the liquid in the immersion box 20 to complete the immersion, which solves the problem that the current plate immersion device has no fixing structure for fixing the plate, and the plate is prone to deviation or even falling when rising or falling, which is inconvenient to use.
[0034] like Figures 2 to 3 As shown, in order to facilitate the adjustment of the height of the clamping assembly 40, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that the lifting assembly 30 includes a first support arm 300, a threaded rod 301, a first slider 302, a drive motor 303, a second support arm 304, a sliding rod 305 and a second slider 306. The first support arm 300 and the second support arm 304 are arranged on the base 10 and are respectively arranged on both sides of the immersion box 20. The first support arm 300 is provided with a first mounting groove 307. The threaded rod 301 is arranged in the first mounting groove 307 and is rotatably connected to the first support arm 300. The first slider 302 is arranged in the first mounting groove 307. The first slider 302 is sleeved On the threaded rod 301, and threadedly connected with the threaded rod 301, one end of the threaded rod 301 passes through the top of the first support arm 300, and is rotatably connected with the first support arm 300, the drive motor 303 is arranged at the top of the first support arm 300, and the output shaft of the drive motor 303 is connected to one end of the threaded rod 301 passing through the top of the first support arm 300, for driving the threaded rod 301 to rotate, a second mounting groove 308 is provided on the second support arm 304, the sliding rod 305 and the sliding block 405 are arranged in the second mounting groove 308, the sliding block 405 is sleeved on the sliding rod 305, and is slidably connected with the sliding rod 305, one end of the mounting beam 400 is connected to the first slider 302, and the other end is connected to the second slider 306.
[0035] When in use, the threaded rod 301 is driven to rotate by the driving motor 303, so that the first slider 302 on the threaded rod 301 moves, thereby driving the installation beam 400 and the second slider 306 to move, thereby realizing the up and down movement of the clamping assembly 40. The threaded connection between the first slider 302 and the threaded rod 301 can make the clamping assembly 40 more stable when lifting and lowering, which is conducive to conveniently adjusting the height of the clamping assembly 40.
[0036] In order to facilitate the clamping arm 402 to clamp the plate, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that the driving structure 404 includes a pair of pneumatic telescopic rods 408, the telescopic end of the pneumatic telescopic rod 408 is fixedly connected to the clamping arm 402, and the other end is fixedly connected to the mounting plate 403.
[0037] When in use, the pneumatic telescopic rod 408 is extended and retracted to drive the clamping arm 402 to move, so that the clamping arm 402 can clamp the plate.
[0038] In order to reduce the splashing of the immersion liquid and the influence on the normal use of the driving structure 404, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment lies in that a shielding plate 409 is arranged between the mounting plate 403 and the clamping arm 402, the shielding plate 409 is arranged at the lower end of the mounting plate 403, and the pneumatic telescopic rod 408 is arranged above the shielding plate 409.
[0039] When in use, the shielding plate 409 can effectively reduce the splashing of the soaking liquid onto the driving structure 404 .
[0040] like Figure 5 As shown, in order to make the clamping arm 402 more stable when moving, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that pulleys 410 are provided on both sides of the sliding block 405, and a slideway 411 cooperating with the pulley 410 is provided on the mounting beam 400. The pulley 410 is installed in the slideway 411 and is slidably connected to the slideway 411.
[0041] When in use, the arrangement of the pulley 410 and the slideway 411 can make the support arm more stable when moving.
[0042] In order to reduce the amount of soaking liquid brought out by the plate after soaking and to better soak the clamped part of the plate, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that a pair of hollow grooves 412 are provided on the placement plate 407.
[0043] When in use, the soaking liquid can soak into a part of the plate where it is clamped through the hollow groove 412, which can effectively reduce the area of the plate that is not soaked.
[0044] like Figure 3 to Figure 4As shown, after the plate is processed, there may be accumulated chips and dust on the surface, which will remain in the soaking liquid during soaking. After soaking for many times, the soaking liquid needs to be replaced due to excessive impurities, and there is a problem that the soaking liquid cannot be fully utilized. In order to make full use of the soaking liquid and reduce the number of times the soaking liquid needs to be replaced due to excessive impurities, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that it also includes a circulation component 50, and a liquid outlet 200 and a liquid inlet 201 are provided at the bottom of one side of the soaking box 20. The circulation component 50 is arranged in conjunction with the liquid outlet 200 and the liquid inlet 201 on the soaking box 20 to circulate the liquid in the soaking box 20.
[0045] Preferably, the circulation component 50 includes a circulation box 500, a first manual valve 501, a first pump body 502, a second manual valve 503 and a second pump body 504, the circulation box 500 is provided with a liquid inlet 505 and a liquid outlet 506, the liquid inlet 505 is connected to the first pump body 502 by a pipeline, the first pump body 502 is connected to the first manual valve 501 by a pipeline, the first manual valve 501 is connected to the liquid outlet 200 on the immersion box 20 by a pipeline, the liquid outlet 506 is connected to the second pump body 504 by a pipeline, the second pump body 504 is connected to the second manual valve 503 by a pipeline, the second manual valve 503 is connected to the liquid inlet 201 on the immersion box 20 by a pipeline, the circulation box 500 is provided with a drain port 507, the drain port 507 is provided with a third manual valve 508, the third manual valve 508 is connected to the drain port 507 by a pipeline, and a plurality of filter elements 509 for filtering impurities are provided in the circulation box 500.
[0046] The first manual valve 501 and the second manual valve 503 are normally open valves and are closed only when they need to be closed, such as for maintenance or replacement.
[0047] When in use, by opening the first pump body 502 and the second pump body 504, the soaking liquid in the soaking box 20 flows through the circulation box 500 and the filter element 509 in the circulation box 500, thereby completing the circulation and filtration of the soaking liquid, which is conducive to fully utilizing the soaking liquid.
[0048] In order to facilitate the filtering of impurities in the soaking liquid, such as accumulated debris and dust, and to facilitate the cleaning or replacement of the filter element 509, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that the circulation box 500 includes a box body 510 and a box cover 511 adapted to the box body 510, and an opening is provided on the top of the box body 510. The box cover 511 is arranged on the top of the box body 510 to cover the opening, and is detachably connected to the box body 510.
[0049] Preferably, the filter element 509 includes a frame 512 and a filter screen 513 arranged in the frame 512, the filter screen 513 is provided with a plurality of liquid flow holes 514, plug-in blocks 515 are provided on both sides of the frame 512, and a plug-in groove 516 cooperating with the plug-in block 515 is provided on the inner side wall of the box body 510. The frame body 512 can be plugged into the box body 510 through the cooperation between the plug-in block 515 and the plug-in groove 516.
[0050] When in use, the box cover 511 can be opened regularly to take out the filter element 509 , clean the impurities on the filter screen 513 , and then reinsert the filter element 509 into the box body 510 .
[0051] Working principle of this utility model:
[0052] When in use, the distance between the two clamping structures 401 is first adjusted through the driving structure 404, and then the plate is placed on the placement plate 407 in the clamping structure 401, and then the distance between the two clamping structures 401 is adjusted through the driving structure 404 again, so that the clamping arm 402 in the clamping structure 401 clamps the plate, and then the height of the clamping assembly 40 is adjusted through the lifting assembly 30, so that the plate and the placement plate 407 are immersed in the liquid in the immersion box 20 to complete the immersion.
[0053] The above-mentioned embodiments only express the specific implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.
Claims
1. A plate soaking device, characterized in that: The invention comprises a base (10), a soaking box (20), a lifting assembly (30) and a clamping assembly (40); the lifting assembly (30) and the soaking box (20) are cooperatively arranged on the base (10); the clamping assembly (40) is arranged on the lifting assembly (30); and the lifting assembly (30) is used to adjust the height of the clamping assembly (40); The clamping assembly (40) includes a mounting beam (400) and a pair of clamping structures (401) arranged below the mounting beam (400), wherein the clamping structures (401) are slidably connected to the mounting beam (400), and the two clamping structures (401) are cooperatively arranged to place and clamp the plate; The clamping structure (401) comprises a clamping arm (402), a mounting plate (403) and a driving structure (404); a sliding block (405) is provided on the top of the clamping arm (402); a sliding groove (406) is provided on the mounting beam (400); the sliding block (405) is slidably connected to the sliding groove (406); at least one placement plate (407) is provided at the lower end of the clamping arm (402); the placement plate (407) is used to place a plate; the mounting plate (403) is provided on one side of the clamping arm (402) and one end is connected to the mounting beam (400); the driving structure (404) is provided between the mounting plate (403) and the clamping arm (402) and is used to drive the clamping arm (402) to clamp the plate.
2. A plate soaking device according to claim 1, characterized in that: The lifting assembly (30) includes a first support arm (300), a threaded rod (301), a first slider (302), a drive motor (303), a second support arm (304), a sliding rod (305) and a second slider (306). The first support arm (300) and the second support arm (304) are arranged on the base (10) and are respectively arranged on both sides of the soaking box (20). The first support arm (300) is provided with a first mounting groove (307). The threaded rod (301) is arranged in the first mounting groove (307) and is rotatably connected to the first support arm (300). The first slider (302) is arranged in the first mounting groove (307). The first slider (302) is sleeved on the threaded rod (301) and is threadedly connected to the threaded rod (301). The threaded rod (301) is threadedly connected to the first support arm (300). One end of the rod (301) passes through the top of the first support arm (300) and is rotatably connected to the first support arm (300). The driving motor (303) is arranged at the top of the first support arm (300), and the output shaft of the driving motor (303) is connected to one end of the threaded rod (301) passing through the top of the first support arm (300) for driving the threaded rod (301) to rotate. The second support arm (304) is provided with a second mounting groove (308). The sliding rod (305) and the sliding block (405) are arranged in the second mounting groove (308). The sliding block (405) is sleeved on the sliding rod (305) and is slidably connected to the sliding rod (305). One end of the mounting beam (400) is connected to the first slider (302), and the other end is connected to the second slider (306).
3. A plate soaking device according to claim 1 or 2, characterized in that: The driving structure (404) includes a pair of pneumatic telescopic rods (408), wherein the telescopic ends of the pneumatic telescopic rods (408) are fixedly connected to the clamping arms (402), and the other ends are fixedly connected to the mounting plate (403).
4. A plate soaking device according to claim 3, characterized in that: A shielding plate (409) is provided between the mounting plate (403) and the clamping arm (402), the shielding plate (409) being provided at the lower end of the mounting plate (403), and the pneumatic telescopic rod (408) being provided above the shielding plate (409).
5. A plate soaking device according to claim 4, characterized in that: Pulleys (410) are provided on both sides of the sliding block (405), and a slideway (411) is provided on the mounting beam (400) to cooperate with the pulley (410). The pulley (410) is installed in the slideway (411) and is slidably connected to the slideway (411).
6. The plate soaking device according to claim 5, characterized in that: A pair of hollow grooves (412) are provided on the placement plate (407).
7. The plate soaking device according to claim 1, characterized in that: The invention also includes a circulation component (50). A liquid outlet (200) and a liquid inlet (201) are provided at the bottom of one side of the immersion box (20). The circulation component (50) is arranged in cooperation with the liquid outlet (200) and the liquid inlet (201) on the immersion box (20) to circulate the liquid in the immersion box (20).
8. The plate soaking device according to claim 7, characterized in that: The circulation assembly (50) includes a circulation box (500), a first manual valve (501), a first pump body (502), a second manual valve (503) and a second pump body (504). The circulation box (500) is provided with a liquid inlet (505) and a liquid outlet (506). The liquid inlet (505) is connected to the first pump body (502) through a pipeline. The first pump body (502) is connected to the first manual valve (501) through a pipeline. The first manual valve (501) is connected to the liquid outlet (200) on the immersion box (20) through a pipeline. The outlet (506) is connected to the second pump body (504) through a pipeline, the second pump body (504) is connected to the second manual valve (503) through a pipeline, the second manual valve (503) is connected to the liquid inlet (201) on the immersion box (20) through a pipeline, the circulation box (500) is provided with a liquid discharge port (507), the liquid discharge port (507) is provided with a third manual valve (508), the third manual valve (508) is connected to the liquid discharge port (507) through a pipeline, and a plurality of filter elements (509) for filtering impurities are provided in the circulation box (500).
9. The plate soaking device according to claim 8, characterized in that: The circulation box (500) comprises a box body (510) and a box cover (511) adapted to the box body (510). An opening is provided on the top of the box body (510). The box cover (511) is arranged on the top of the box body (510) to cover the opening and is detachably connected to the box body (510).
10. The plate soaking device according to claim 9, characterized in that: The filter element (509) includes a frame (512) and a filter screen (513) disposed in the frame (512). The filter screen (513) is provided with a plurality of liquid flow holes (514). Plug-in blocks (515) are provided on both sides of the frame (512). A plug-in groove (516) is provided on the inner side wall of the box (510) to cooperate with the plug-in block (515). The frame (512) can be plugged into the box (510) through the cooperation between the plug-in block (515) and the plug-in groove (516).
