CN112319996A

CN112319996A - High-bearing wood-plastic tray

Info

Publication number: CN112319996A
Application number: CN202011311976.2A
Authority: CN
Inventors: 李峰; 莫国贤
Original assignee: Wuxi Bosheng Packaging Material Co ltd
Current assignee: Wuxi Bosheng Packaging Material Co ltd
Priority date: 2020-11-20
Filing date: 2020-11-20
Publication date: 2021-02-05

Abstract

The application relates to a high-bearing wood-plastic tray, which relates to the field of storage supplies and comprises a top plate and a bottom plate, wherein a middle support column and two outer support columns are arranged between the top plate and the bottom plate, the middle support column is positioned between the two outer support columns, and fork cavities for insertion of a forklift are formed between the outer support columns and the middle support column; the bottom of roof rotates and is connected with the extension board, establish articulated through setting up the articulated shaft between extension board, roof, the axis of articulated shaft is parallel with the face of roof, the extension board is located the fork intracavity, and the articulated shaft is located the top intermediate position in fork chamber, the extension board droops to the state of tip butt bottom plate under the action of gravity, and the extension board can make face butt roof through rotating. The bottom surface of the middle support column is provided with a sleeve, and the top surface of the bottom plate is provided with a piston in sliding connection with the sleeve. The supporting plate is arranged on the pallet, so that the bearing capacity of the top plate is improved, and the supporting plate cannot influence the forklift conveying pallet; the tray is made of wood-plastic materials and is relatively environment-friendly.

Description

High-bearing wood-plastic tray

Technical Field

The application relates to the field of storage supplies, in particular to a high-bearing wood-plastic tray.

Background

The tray is the storage articles for use that are used for placing the object, also is used to the commodity circulation more, and the material of tray uses timber, plastics as leading, and the structure of tray needs to satisfy makes things convenient for fork truck to remove.

The utility model discloses a chinese utility model patent that the bulletin number is CN201390430Y discloses a tray is moulded to wood, mould the bearing plate including wood, mould the bearing plate to be equipped with wood and mould the bottom plate under the bearing plate, mould the bottom plate and mould the bearing plate with wood to be equipped with three woods between the bearing plate, mould the cavity that forms two convenient fork truck transport between the bearing plate.

In view of the above-mentioned related technologies, the inventor believes that two cavities in the pallet are used for a forklift to insert, the two cavities cannot be occupied, and this results in that the top plate right above the cavities is lack of support, the top plate is easily pressed and deformed or broken by impact at the middle part of the cavities, and the bearing capacity of the top plate is insufficient.

Disclosure of Invention

In order to improve the bearing capacity of roof, this application provides a tray is moulded to high bearing wood.

The application provides a pair of high bearing wood-plastic tray adopts following technical scheme:

a high-bearing wood-plastic tray comprises a top plate and a bottom plate, wherein a middle support column and two outer support columns are arranged between the top plate and the bottom plate, the middle support column is positioned between the two outer support columns, and a fork cavity for a forklift to insert is formed between the outer support columns and the middle support column; the bottom of the top plate is rotatably connected with a support plate, the support plate and the top plate are hinged through a hinge shaft, the axis of the hinge shaft is parallel to the plate surface of the top plate, the support plate is located in the fork cavity, the hinge shaft is located in the middle of the top of the fork cavity, the support plate drops to a state that the end portion of the support plate abuts against the bottom plate under the action of gravity, and the support plate can enable the plate surface to abut against the top plate through rotation.

Through adopting above-mentioned technical scheme, when this tray normal use, placed the object on the roof, the top surface of the bottom surface butt bottom plate of well support column, the extension board is flagging to the state of tip butt bottom plate under the action of gravity. At the moment, the outer supporting columns and the middle supporting columns support the weight of the top plate, and the supporting plates also support the top plate in the middle of the fork cavity, so that the bearing capacity of the top plate is improved, and the top plate is not easy to deform or break under impact.

When fork truck forked this tray, the fork inserts between extension board, the well support column in fork chamber, and fork or personnel stir the extension board and rotate to the state of laminating the roof, and the extension board is located the fork top this moment, and along with the continuation rising of fork, the fork can lift this tray. When the forklift puts down the tray, the support plate rotates around the hinge shaft under the action of gravity until the surface of the support plate is vertical, the lower end of the support plate is abutted against the bottom plate again, and the support plate restores to support the top plate again.

Optionally, the well support column can separate with the bottom plate, the bottom surface of well support column is equipped with the sleeve, the top surface of bottom plate be equipped with sleeve sliding connection's piston, establish sliding seal between sleeve, piston, be equipped with the pressure chamber in the sleeve, the piston is equipped with the intake duct, the intake duct communicates ambient air and pressure chamber, be equipped with the check valve in the intake duct, the one-way direction of conducting of check valve is towards the pressure chamber.

By adopting the technical scheme, after the pallet is forked by the forklift, because the middle support column is not fixed with the bottom plate, the whole rigidity of the frame-shaped pallet is not high, the bottom plate can generate a small amount of deformation protruding downwards in the middle under the self gravity, so that the bottom plate and the middle support column are separated, and outside air enters the pressure cavity through the air inlet channel and the one-way valve. After the forklift puts down the tray, the one-way valve makes the air in the pressure cavity be discharged out smoothly, and then the middle support column can not be abutted against the bottom plate rapidly. Then the fork removes and leaves the fork chamber, and the extension board rotates around the articulated shaft under the action of gravity, because well support column does not butt bottom plate, the interval of roof, bottom plate is great, makes the face of extension board can ensure to be in vertical state. Along with the long-time pushing down of roof and object weight, because of sealed imperfect, the air in the pressure chamber slowly outwards leaks, and the support post butt bottom plate in final, the lower extreme butt bottom plate of extension board this moment, and the extension board resumes to support the roof again. The arrangement ensures that the support plate can reliably and automatically recover the support function of the top plate.

Optionally, a first supporting groove for embedding the lower end of the supporting plate is formed in the top surface of the bottom plate.

Through adopting above-mentioned technical scheme, support groove one through setting up, the extension board lower extreme embedding supports and forms the location behind the groove one, prevents that the tray from inclining, rocking time extension board spontaneous rotation. The support plate can still leave the first support groove under the action of strong force.

Optionally, the end of the support plate away from the hinge shaft is an arc surface, and the shape of the first support groove is matched with the arc surface.

Through adopting above-mentioned technical scheme, fork truck's fork is comparatively laborsaving when ordering about the extension board and rotate, and extension board, support still can keep the location effect within a definite time.

Optionally, the bottom surface of the top plate is provided with an embedded groove, the hinge shaft is located in the embedded groove, the support plate can completely rotate into the embedded groove, and when the support plate rotates into the embedded groove, the bottom surface of the support plate is flush with the bottom surface of the top plate.

Through adopting above-mentioned technical scheme, after fork truck fork the tray, the extension board rotates to the caulking groove in, the bottom surface parallel and level of extension board, roof this tray can be steadily lifted to the fork this moment, and allows the fork to freely slide along the bottom surface of roof.

Optionally, the length direction of the support plate extends along the length direction of the hinge shaft, the end part of the support plate in the length direction is rotatably connected with a guide plate, the guide plate is hinged with the support plate through a hinge rod arranged at the end part, and the guide plate extends towards the opening of the fork cavity; the surface of the guide plate is inclined to the support plate, the distance between the guide plate and the middle support column is gradually enlarged along the direction away from the fork cavity, the rotation angle is limited by arranging a limiting surface between the guide plate and the support plate, and the limiting surface is positioned on one side of the hinge rod, which deviates from the middle support column.

Through adopting above-mentioned technical scheme, the fork inserts between deflector, the well support column in fork chamber, behind the face of fork butt deflector, along with the application of force of fork and the limiting displacement of spacing face, deflector, extension board are whole to rotate around the articulated shaft. Along with the fork is lifted upwards, the fork drives the support plate to rotate to the state that the plate surface is abutted to the top plate, in the process, the guide plate rotates around the hinge rod in a self-adaptive mode, the guide plate rotates to the state that the guide plate is flush with the plate surface of the support plate, and the guide plate can be lifted by the fork. Through setting up the deflector, enlarged the fork and inserted the scope in fork chamber, the fork chamber can insert bigger fork.

Optionally, a second supporting groove for embedding the lower end of the guide plate is formed in the top surface of the bottom plate.

Through adopting above-mentioned technical scheme, support groove two through setting up, the deflector lower extreme embedding supports and forms the location behind groove two, and the deflector is spontaneous when preventing the tray slope, rocking rotates. The guide plate can still leave the second support groove under the strong action of the pallet fork.

Optionally, the top surface of the bottom plate is provided with a guide groove communicated with the second supporting groove, the guide groove is located on one side of the second supporting groove, which deviates from the middle supporting column, the bottom of the guide groove is an inclined plane, the upper end of the inclined plane is connected with the top surface of the bottom plate, and the lower end of the inclined plane is connected with the bottom of the second supporting groove.

Through adopting above-mentioned technical scheme, through setting up the guide way, the limiting displacement of two pairs of deflectors in support groove mainly lies in the one side of support column in the orientation, and the deflector is less to guide way side pivoted resistance, makes things convenient for the fork to order about the deflector and rotates.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the supporting plate is arranged, so that the bearing capacity of the top plate is improved;

2. the support plate does not affect the forklift conveying tray;

3. through setting up the deflector, enlarged the scope that the fork inserted the fork chamber.

Drawings

Fig. 1 is a perspective view of a high load-bearing wood-plastic pallet of an embodiment.

Fig. 2 is a partial sectional view of the embodiment.

3 fig. 3 3 3 is 3 a 3 cross 3- 3 sectional 3 view 3 taken 3 along 3 line 3 a 3- 3 a 3 of 3 fig. 31 3. 3

Fig. 4 is a partial exploded view of the embodiment.

Fig. 5 is an enlarged view of fig. 3 at B.

Fig. 6 is a structural view after the forks are inserted into the pallet.

Description of reference numerals: 1. a top plate; 2. a base plate; 3. a middle support column; 4. an outer support column; 10. a fork cavity; 11. caulking grooves; 12. hinging a shaft; 5. a support plate; 21. a first supporting groove; 6. a guide plate; 51. a hinged lever; 52. a limiting surface; 22. a second supporting groove; 23. a guide groove; 31. a sleeve; 311. a pressure chamber; 24. a piston; 241. an air inlet channel; 242. a one-way valve.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses high bearing wood-plastic tray. Referring to fig. 1, the high-bearing wood-plastic pallet comprises a rectangular top plate 1 and a rectangular bottom plate 2, and a middle support column 3 and two outer support columns 4 are arranged between the top plate 1 and the bottom plate 2. The middle support column 3 is positioned between two outer support columns 4, the middle support column 3 corresponds to the middle part of the top plate 1, and the two outer support columns 4 are positioned at two ends of the bottom surface of the top plate 1 and correspond to two end parts of the top plate 1. Fork cavities 10 for inserting the forklift are formed between the outer supporting columns 4 and the middle supporting columns 3, and the number of the fork cavities 10 is two; the top plate 1, the bottom plate 2 and the outer support columns 4 are fixed through bolts or glue, and the top surfaces of the middle support columns 3 are fixed with the bottom surface of the top plate 1.

The top plate 1 and the bottom plate 2 are arranged in parallel, the top plate 1 comprises a plurality of top sub-plates which are arranged in parallel, the plate surfaces of all the top sub-plates are flush, objects are placed on the top plate 1, the middle support column 3 supports the middle of the top plate 1, and the outer support columns 4 support two edges of the bottom surface of the top plate 1; the bottom plate 2 comprises a plurality of bottom sub-plates arranged in parallel, the plate surfaces of all the bottom sub-plates are flush, and the bottom surface of the bottom plate 2 is used for being in contact with the ground.

Referring to fig. 2 and 3, an embedded groove 11 is formed in the bottom surface of the top plate 1, a supporting plate 5 is hinged to a groove wall of the embedded groove 11 through an articulated shaft 12, the articulated shaft 12 is located at an end portion, facing the middle support column 3, of the embedded groove 11, the articulated shaft 12 is located in the middle of a top space of the fork cavity 10, an axis of the articulated shaft 12 is parallel to a plate surface of the top plate 1, and the length direction of the articulated shaft 12 is along the horizontal extending direction of the middle support column 3. The support plate 5 is a long strip-shaped plate, the length direction of the support plate 5 is along the length direction of the hinged shaft 12, and the support plate 5 is hinged with the top plate 1 through the edge of the long edge.

The thickness of the strip 5 is set to be the same as the depth of the caulking groove 11. The width of the strip 5 is set as: under the action of gravity, the support plate 5 can droop to a state that the end part of the support plate 5 is abutted to the bottom plate 2, the plate surface of the support plate 5 is a vertical surface, and the support plate 5 forms support between the top plate 1 and the bottom plate 2. The top surface of bottom plate 2 is equipped with support groove one 21 that supplies the support plate 5 lower extreme embedding, and the end that the support plate 5 deviates from articulated shaft 12 is the arc surface, and the shape of support groove one 21 matches with the arc surface, and after support plate 5 end got into support groove one 21, the cell wall of support groove one 21 had the limiting displacement effect to support plate 5, can prevent that support plate 5 from leaving support groove one 21 voluntarily. Support plate 5 can be to the direction that deviates from well support column 3, around articulated shaft 12 rotate to caulking groove 11 in, the width of caulking groove 11 can supply support plate 5 to imbed completely, after support plate 5 imbeds caulking groove 11 completely, support plate 5 passes through the bottom surface of last face butt roof 1, the lower face of support plate 5 and the bottom surface parallel and level of roof 1.

Referring to fig. 2 and 4, the end of the support plate 5 in the length direction is rotatably connected with the guide plate 6, the guide plate 6 is hinged with the support plate 5 through a hinge rod 51 arranged at the end, the length of the hinge rod 51 is opposite to the width direction of the support plate 5, and the guide plate 6 is hinged with the support plate 5 through the end. The guide plate 6 is still located in the fork cavity 10, the guide plate 6 is located right below the caulking groove 11, a space is reserved between the guide plate 6 and the top wall of the caulking groove 11, and the plate thickness of the guide plate 6 is the same as that of the support plate 5.

The end of the guide plate 6 facing away from the hinge rod 51 extends towards the mouth of the fork chamber 10, and the guide plate 6 can rotate around the hinge rod 51, so that the plate surface of the guide plate 6 is inclined to the support plate 5 or parallel to the support plate 5. Guide plate 6, through setting up spacing 52 restriction turned angle between extension board 5, spacing 52 is located guide plate 6, extension board 5 is on the tip lateral wall just right each other, and be located articulated arm 51 and deviate from one side of well support column 3, the face when extension board 5 is vertical face, guide plate 6, when extension board 5 passes through spacing 52 butt, the face slope of guide plate 6 in extension board 5, along the direction that leaves fork chamber 10, guide plate 6, well support column 3's interval expands gradually, this position that expands gradually is used for supplying fork truck to fork to go into.

The top surface of the bottom plate 2 is provided with a second supporting groove 22 for embedding the lower end of the guide plate 6, and the bottom of the second supporting groove 22 is in smooth transition with the top surface of the bottom plate 2. The length direction of the second support groove 22 is inclined to the first support groove 21, and when the plate surface of the support plate 5 is along the vertical direction, and the guide plate 6 and the support plate 5 are abutted through the limiting surface 52, the lower end of the guide plate 6 is just embedded into the second support groove 22. The top surface of the bottom plate 2 is also provided with a guide groove 23, the guide groove 23 is positioned on one side of the support groove two 22 departing from the middle support column 3 and is communicated with the support groove two 22, the bottom of the guide groove 23 is an inclined plane, the upper end of the inclined plane is connected with the top surface of the bottom plate 2, and the lower end of the inclined plane is connected with the bottom of the support groove two 22. Through setting up guide way 23, the limiting displacement of guide plate 6 is mainly located the side towards center pillar 3 to support groove two 22, and the resistance that guide plate 6 rotated to guide way 23 side is less.

Referring to fig. 3 and 5, the middle support columns 3 are placed on the base plate 2 through the bottom surface, and the middle support columns 3 are separable from the base plate 2. The bottom surface of the middle support column 3 is fixed with a sleeve 31, the top surface of the bottom plate 2 is fixed with a piston 24, the piston 24 is inserted into the lower end of the sleeve 31 and is in sliding connection with the sleeve 31, and sliding sealing is established between the inner wall of the sleeve 31 and the outer wall of the piston 24. The length direction of sleeve 31 is perpendicular to the face of bottom plate 2, and the upper end of sleeve 31 is sealed, and the space that lies in the piston 24 top in the sleeve 31 is pressure chamber 311, is equipped with intake duct 241 along vertical direction in the piston 24, and intake duct 241 runs through the upper and lower both ends of piston 24 to link up to the bottom surface of bottom plate 2 downwards, and intake duct 241 communicates outside air and pressure chamber 311, is equipped with check valve 242 in the intake duct 241, and the one-way conduction direction of check valve 242 is intake duct 241 towards pressure chamber 311.

The top plate 1, the bottom plate 2, the outer supporting columns 4 and the middle supporting columns 3 of the tray are all made of wood-plastic materials, and the tray is environment-friendly. The support plate 5 and the guide plate 6 can be made of wood plastic materials, and can also be made of other hard materials, such as metal.

The implementation principle of the high bearing wood-plastic tray of the embodiment of the application is as follows: when this tray normal use, refer to fig. 3, placed the object on roof 1, the bottom surface butt bottom plate 2's of well support column 3 top surface, and the face of extension board 5 is along vertical direction, in the lower extreme embedding support groove 21 of extension board 5. At the moment, the outer supporting columns 4 and the middle supporting columns 3 support the weight of the top plate 1, and the supporting plates 5 also support the top plate 1 in the middle of the fork cavity 10, so that the top plate 1 is not easy to deform or break under impact. Although the guide plate 6 does not support the upper top plate 1, the guide plate 6 is located at the edge of the tray, and the top plate 1 at the position is not easy to bear the weight of the object, so the tray still has high load bearing capacity.

Referring to fig. 2 and 6, when the pallet is forked by the forklift, the fork is inserted between the guide plate 6 and the middle support column 3 of the fork cavity 10, and after the fork abuts against the surface of the guide plate 6, the guide plate 6 and the support plate 5 integrally rotate around the hinge shaft 12 along with the force application of the fork and the limiting effect of the limiting surface 52. With the fork lifted upwards, the fork drives the support plate 5 to rotate until the support plate 5 is completely embedded into the embedded groove 11, in the process, the guide plate 6 rotates around the hinge rod 51 in a self-adaptive mode, the guide plate 6 rotates to be flush with the surface of the support plate 5, and the guide plate 6 also completely enters the embedded groove 11. Two forks of fork truck keep away from each other to suitable position, along with the continuation rising of fork, the fork can lift this tray. At the moment, the bottom surfaces of the support plate 5, the guide plate 6 and the top plate 1 are flush, and the pallet fork can stably lift the pallet.

Referring to fig. 3 and 5, after the pallet is forked by the forklift, because the middle support column 3 is not fixed with the bottom plate 2, and the overall rigidity of the pallet in the shape of a frame is not high, the bottom plate 2 can generate a small amount of deformation with the middle part protruding downwards under the self gravity, so that the bottom plate 2 and the middle support column 3 are separated, and outside air enters the pressure cavity 311 through the air inlet channel 241 and the one-way valve 242.

When the pallet is put down by the forklift, the weight of the top plate 1 and the object acts on the bottom plate 2 through the middle support column 3, and due to the existence of the one-way valve 242, air in the pressure cavity 311 cannot be smoothly discharged outwards, so that the middle support column 3 cannot be quickly abutted against the bottom plate 2. Then the fork moves away from the fork cavity 10, the support plate 5 rotates around the hinge shaft 12 under the action of gravity until the surface of the support plate 5 is vertical, and the guide plate 6 also rotates into the second support groove 22 spontaneously. Because the middle support column 3 is not abutted to the bottom plate 2, the distance between the top plate 1 and the bottom plate 2 is larger, so that the lower end of the support plate 5 can be reliably opposite to the first support groove 21, and the guide plate 6 can enter the second support groove 22. Along with the long-time pressing of the top plate 1 and the weight of the object, due to the imperfect sealing (the micro-holes can be opened by artificial assistance), air in the pressure cavity 311 slowly leaks outwards, finally the middle support column 3 abuts against the bottom plate 2, the lower end of the support plate 5 is completely embedded into the first support groove 21 to form positioning, the lower end of the guide plate 6 completely abuts against the groove bottom of the second support groove 22 to form positioning, and the support plate 5 recovers the support for the top plate 1.

In addition, when fork truck forked this tray, extension board 5 is in the pressurized state of face, and this pressurized direction is perpendicular with the pressurized direction when extension board 5 is in vertical support state, can produce deformation slightly after extension board 5 receives the extrusion, then the fork can make extension board 5 produce the extension in the width direction, offsets the width that extension board 5 was in long time pressurized and produced and shortens the deformation volume to a certain extent when vertical state. After the tray is used for a long time, the support plate 5 can still maintain the support function, and the service life is longer.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A high-bearing wood-plastic tray comprises a top plate (1) and a bottom plate (2), wherein a middle support column (3) and two outer support columns (4) are arranged between the top plate (1) and the bottom plate (2), the middle support column (3) is positioned between the two outer support columns (4), and a fork cavity (10) for a forklift to insert is formed between the outer support columns (4) and the middle support column (3); the method is characterized in that: the bottom of roof (1) is rotated and is connected with extension board (5), establish articulated through setting up articulated shaft (12) between extension board (5), roof (1), the axis of articulated shaft (12) is parallel with the face of roof (1), extension board (5) are located fork chamber (10), articulated shaft (12) are located the top intermediate position of fork chamber (10), extension board (5) hang down to the state of tip butt bottom plate (2) under the action of gravity, extension board (5) can make face butt roof (1) through rotating.

2. A high load-bearing wood-plastic pallet as claimed in claim 1, wherein: well support column (3) can separate with bottom plate (2), the bottom surface of well support column (3) is equipped with sleeve (31), the top surface of bottom plate (2) is equipped with piston (24) with sleeve (31) sliding connection, establish sliding seal between sleeve (31), piston (24), be equipped with pressure chamber (311) in sleeve (31), piston (24) are equipped with intake duct (241), intake duct (241) communicate outside air and pressure chamber (311), be equipped with check valve (242) in intake duct (241), the one-way direction of conducting of check valve (242) is towards pressure chamber (311).

3. A high load-bearing wood-plastic pallet as claimed in claim 1, wherein: and a first support groove (21) for embedding the lower end of the support plate (5) is formed in the top surface of the bottom plate (2).

4. A high load-bearing wood-plastic pallet as claimed in claim 3, wherein: the end part of the support plate (5) departing from the hinge shaft (12) is an arc surface, and the shape of the support groove I (21) is matched with the arc surface.

5. A high load-bearing wood-plastic pallet as claimed in claim 1, wherein: the bottom surface of roof (1) is equipped with caulking groove (11), articulated shaft (12) are located caulking groove (11), extension board (5) can rotate completely to in caulking groove (11), works as extension board (5) rotate to in caulking groove (11), the bottom surface of extension board (5) and the bottom surface parallel and level of roof (1).

6. A high load-bearing wood-plastic pallet as claimed in claim 1, wherein: the length direction of the support plate (5) extends along the length direction of the hinge shaft (12), the end part of the support plate (5) in the length direction is rotatably connected with a guide plate (6), the guide plate (6) is hinged with the support plate (5) through a hinge rod (51) arranged at the end part, and the guide plate (6) extends towards the opening of the fork cavity (10); the plate surface of the guide plate (6) is inclined to the support plate (5), the distance between the guide plate (6) and the middle support column (3) is gradually enlarged along the direction of leaving the fork cavity (10), the rotation angle is limited by arranging a limiting surface (52) between the guide plate (6) and the support plate (5), and the limiting surface (52) is positioned on one side of the hinge rod (51) deviating from the middle support column (3).

7. A high load-bearing wood-plastic pallet according to claim 6, characterized in that: and a second supporting groove (22) for embedding the lower end of the guide plate (6) is formed in the top surface of the bottom plate (2).

8. A high load-bearing wood-plastic pallet according to claim 7, characterized in that: the top surface of bottom plate (2) is equipped with guide way (23) that the intercommunication supported groove two (22), guide way (23) are located one side that support groove two (22) deviate from well support column (3), the tank bottom of guide way (23) is the inclined plane, and the upper end on this inclined plane meets with the top surface of bottom plate (2), and the lower extreme on this inclined plane meets with the tank bottom that supports groove two (22).