Novel pile head

Abstract

The utility model discloses a novel pile head which comprises an upper frame body, a lower frame body and a lower frame body, a first clamping groove is transversely formed in the side face of the upper frame body, and an opening of the first clamping groove faces downwards; the lower frame body is detachably connected to the lower end of the upper frame body; a second clamping groove and a third clamping groove are longitudinally formed in the side face of the lower frame body, notches of the second clamping groove and the third clamping groove are opposite, and a fourth clamping groove with a notch facing the upper frame body is formed in the bottom of the lower frame body. When the upper frame body and the lower frame body are assembled, the first clamping groove, the second clamping groove, the third clamping groove and the fourth clamping groove form a frame surrounding the side plate. According to the novel stack head disclosed by the utility model, through the detachable connecting structure of the upper frame body and the lower frame body, the replacement and the installation of the advertisement board are convenient; the first clamping groove, the second clamping groove, the third clamping groove and the fourth clamping groove surround all the frames of the side plate correspondingly, so that all the frames of the side plate are protected, and the problems that according to an existing stacking head, the upper end and the lower end of an advertisement board are prone to being abraded, and the service life of the advertisement board is shortened are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of the head of a pile, in particular to a novel head of a pile. BACKGROUND

[0002] The existing head of a pile such as the simple head of a pile and commodity display square shown in the Chinese patent with the publication number CN208973132U realizes the detachable connection assembly of the head of a pile and the detachable installation of the advertising board, but the upper end or the upper and lower ends of the advertising board installed on the side of the head of a pile are exposed, which can easily cause the wear of the upper and lower ends of the advertising board and reduce the service life of the advertising board. SUMMARY

[0003] To solve the above technical problems, the utility model provides a novel head of a pile, which comprises:

[0004] The upper frame body is provided with a first clamping groove on the lateral side in the transverse direction, and the groove opening of the first clamping groove faces downward;

[0005] The lower frame body is detachably connected to the lower end of the upper frame body, and the lateral side of the lower frame body is provided with a second clamping groove and a third clamping groove in the longitudinal direction, the groove openings of the second clamping groove and the third clamping groove are opposite to each other, and the bottom of the lower frame body is provided with a fourth clamping groove with a groove opening facing the upper frame body;

[0006] When the upper frame body and the lower frame body are assembled, the first clamping groove, the second clamping groove, the third clamping groove and the fourth clamping groove form a frame surrounding the side plate.

[0007] Preferably, the upper frame body and the lower frame body are both composed of a plurality of connecting pieces and a plurality of elongated members which are detachably assembled through the connecting pieces.

[0008] Preferably, the connecting pieces are made of one of plastic, metal, alloy and hard fiber, and the elongated members are made of one of metal, alloy and hard fiber.

[0009] Preferably, the connecting pieces at the corners of the first clamping groove, the second clamping groove, the third clamping groove and the fourth clamping groove are all provided with communication grooves, and the communication grooves communicate the first clamping groove, the second clamping groove, the third clamping groove and the fourth clamping groove.

[0010] Preferably, the upper frame body is provided with a reserved groove.

[0011] Preferably, the lower frame body is composed of a first frame body and a second frame body which are spaced apart to form four lateral sides.

[0012] The second frame body is composed of a first inner push frame body and a second inner push frame body hinged to the first inner push frame body, and the bottom of the first inner push frame body and the second inner push frame body hinged thereto is provided with a fourth clamping groove along the length direction.

[0013] The first inner push frame and the second inner push frame are respectively hinged with the first frame adjacent thereto; the first inner push frame and the second inner push frame can be folded inwardly;

[0014] An intermediate connecting member is arranged between the two second frames;

[0015] When assembled, the intermediate connecting member is detachably connected with the first inner push frame and the second inner push frame.

[0016] Preferably, the intermediate connecting member comprises a third elongated member, and fourth connecting members are respectively arranged at two ends of the third elongated member;

[0017] The fourth connecting members are inserted into the ends of the third elongated member, and the fourth connecting members are provided with notched downward fixing grooves;

[0018] When assembled, the fixing grooves are clamped on the upper ends of the first inner push frame and the second inner push frame.

[0019] Preferably, notches are arranged adjacent to the upper ends of the first inner push frame and the second inner push frame;

[0020] A clamping protrusion is arranged in the notch;

[0021] When assembled, the fixing grooves are clamped on the upper ends of the first inner push frame and the second inner push frame.

[0022] Preferably, the first frame is surrounded by two fourth elongated members arranged vertically, a fifth elongated member and a sixth elongated member arranged horizontally, the fifth elongated member and the sixth elongated member are arranged above and below, and a seventh elongated member is arranged at the upper end of the two fourth elongated members;

[0023] The side wall of the sixth elongated member is provided with the fourth clamping groove along the length direction, and the fourth elongated member is provided with the third clamping groove along the length direction;

[0024] The side wall of the fourth elongated member is hinged with the second frame adjacent thereto;

[0025] The upper end of the fourth elongated member is detachably connected with the fifth elongated member and the seventh elongated member through a third connecting member, and the lower end of the fourth elongated member is detachably connected with the sixth elongated member through a fifth connecting member;

[0026] The upper end of the seventh elongated member is insertedly connected with the upper frame.

[0027] Preferably, the upper frame comprises a plurality of first elongated members, and first connecting members are respectively arranged at two ends of the first elongated members;

[0028] The first elongated member is provided with the first clamping groove along the axial direction thereof;

[0029] The first connecting piece comprises a first part connecting piece and a second part connecting piece; the first part connecting piece and the second part connecting piece are provided with plug-in cavities in horizontal and vertical directions; the horizontal plug-in cavities of the first part connecting piece and the second part connecting piece are respectively plugged with adjacent first long-shaped members, and the vertical plug-in cavities are plugged with upper ends of the same long-shaped members of the lower frame body.

[0030] The novel stack head provided by the embodiment of the present application is connected with the upper frame body and the lower frame body through a detachable connection structure, so that the advertising board can be conveniently replaced and installed; the first clamping groove, the second clamping groove, the third clamping groove and the fourth clamping groove respectively surround the frames of the side plates, so that the frames of the side plates are protected, and the problem that the existing stack head can easily cause the wear of the upper and lower ends of the advertising board and reduce the service life of the advertising board is solved. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 The upper frame body and the lower frame body of the novel stack head provided by the embodiment of the present application are shown in the exploded view;

[0032] Figure 2 The exploded view of the novel stack head provided by the embodiment of the present application is shown in the figure;

[0033] Figure 3 The figure is Figure 2 The enlarged view of A in the figure is shown in the figure;

[0034] Figure 4 The exploded view of the upper frame body is shown in the figure;

[0035] Figure 5 The exploded view of the first connecting piece and the first long-shaped member is shown in the figure;

[0036] Figure 6 The exploded view of the intermediate connecting piece and the second frame body is shown in the figure;

[0037] Figure 7 The exploded view of the first frame body is shown in the figure;

[0038] Figure 8 The perspective view of the first connecting piece is shown in the figure;

[0039] Figure 9 The exploded view of the first connecting piece is shown in the figure;

[0040] Figure 10 The perspective view of the third connecting piece is shown in the figure;

[0041] Figure 11 The perspective view of the fifth connecting piece is shown in the figure;

[0042] 10, upper frame body; 11, first clamping groove; 12, first connecting piece; 121, first communication groove; 122, first split connecting piece; 123, second split connecting piece; 13, first elongated member; 14, reserved groove; 20, lower frame body; 21, second clamping groove; 22, third clamping groove; 23, fourth clamping groove; 24, first frame body; 241, fourth elongated member; 242, fifth elongated member; 243, sixth elongated member; 244, third connecting piece; 2441, second communication groove; 245, fifth connecting piece; 2451, third communication groove; 246, seventh elongated member; 25, second frame body; 251, first inner push frame body; 252, second inner push frame body; 26, middle connecting piece; 261, third elongated member; 262, fourth connecting piece; 27, hinge. DETAILED DESCRIPTION

[0043] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments, but the following embodiments are only preferred embodiments of the utility model, not all, based on the embodiments in the embodiments, other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model, the experimental methods in the following embodiments are conventional methods, and the materials, reagents and the like used in the following embodiments are commercially available unless otherwise specified.

[0044] In the description of the utility model, it should be pointed out that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0045] In the description of the utility model, it should be pointed out that unless otherwise specified and limited, the terms "mounting", "provided with", "connection" and the like should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through intermediate medium; can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0046] As Figure 1The utility model provides a novel stack head, including:

[0047] The upper frame body 10, the first clamping slot 11 is horizontally arranged on the side of the upper frame body 10 (such as Figure 5 The slot of the first clamping slot 11 faces downward.

[0048] The lower frame body 20 is detachably connected to the lower end of the upper frame body 10, and the detachable structure includes but is not limited to plug-in connection, bolt connection and the like.

[0049] When the upper frame body 10 and the lower frame body 20 are assembled, the first clamping slot 11, the second clamping slot 21, the third clamping slot 22 and the fourth clamping slot 23 form a frame surrounding the side plate.

[0050] When the side plate is installed, the side plate is inserted along the second clamping slot 21 and the third clamping slot 22 until the bottom of the side plate contacts the fourth clamping slot 23.

[0051] The novel stack head provided by the utility model is convenient for replacing and installing the advertising board through the detachable connection structure of the upper frame body 10 and the lower frame body 20.

[0052] Further, the upper frame body 10 and the lower frame body 20 are each composed of a plurality of connecting pieces and a plurality of elongated members detachably assembled by the connecting pieces.

[0053] In specific implementation, the upper frame body 10 and the lower frame body 20 are each composed of a plurality of connecting pieces and a plurality of elongated members detachably assembled by the connecting pieces.

[0054] Further, the connecting pieces are made of one of plastic, metal, alloy and hard fiber, and the elongated members are made of one of metal, alloy and hard fiber.

[0055] In specific implementation, if the connecting member is made of plastic material and the elongated member is made of alloy profile, the production cost of the pile head can be reduced.

[0056] Further, the upper frame body 10 is provided with a reserved groove 14.

[0057] In specific implementation, if the connecting member is made of plastic material and the elongated member is made of alloy profile, the production cost of the pile head can be reduced. Figure 3 As shown in the figure, the upper frame body 10 is provided with a reserved groove 14 at the top of each corner, which can be used to conveniently insert and install a support when the user needs to set up an advertising banner or a panel above the pile head.

[0058] Further, the lower frame body 20 is surrounded by four sides of the first frame body 24 and the second frame body 25.

[0059] The second frame body 25 is composed of the first inner push frame body 251 and the second inner push frame body 252 hinged thereto, and the bottom of each of the first inner push frame body 251 and the second inner push frame body 252 is provided with a fourth clamping groove 23 along the length direction.

[0060] The first inner push frame body 251 and the second inner push frame body 252 are respectively hinged to the adjacent first frame body 24, and the first inner push frame body 251 and the second inner push frame body 252 can be folded inwardly.

[0061] The two second frame bodies 25 are provided with an intermediate connecting member 26.

[0062] In assembly, the intermediate connecting member 26 is detachably connected to the first inner push frame body 251 and the second inner push frame body 252.

[0063] In specific implementation, if the connecting member is made of plastic material and the elongated member is made of alloy profile, the production cost of the pile head can be reduced. Figure 2 As shown in the figure, the lower frame body 20 is surrounded by four sides of the first frame body 24 and the second frame body 25.

[0064] The second frame body 25 is composed of the first inner push frame body 251 and the second inner push frame body 252 hinged thereto, and the bottom of each of the first inner push frame body 251 and the second inner push frame body 252 is provided with a fourth clamping groove 23 along the length direction.

[0065] The first inner push frame body 251 and the second inner push frame body 252 are respectively hinged to the adjacent first frame body 24 through the hinge 27, and the first inner push frame body 251 and the second inner push frame body 252 can be folded inwardly. The two second frame bodies 25 are provided with an intermediate connecting member 26, and the intermediate connecting member 26 is detachably connected to the first inner push frame body 251 and the second inner push frame body 252.

[0066] When storing, the entire upper frame body 10 or the first long-shaped member 13 above the first inner push frame body 251 and the second inner push frame body 252 is disassembled, the side plate advertising board is taken out, and then the connection part of the first inner push frame body 251 and the second inner push frame body 252 is pushed inward, so that the first inner push frame body 251 and the second inner push frame body 252 are folded between the two first frame bodies 24, thereby facilitating the storage of the stack head.

[0067] When assembling, the first inner push frame body 251 and the second inner push frame body 252 in the storage state are unfolded, and the first inner push frame body 251 and the second inner push frame body 252 are connected and fixed through the intermediate connecting piece 26, so that the stack head can stably carry goods.

[0068] The stack head provided by the embodiment is convenient for users to store the stack head when idle through the inner push storage structure of the lower frame body 20, and saves storage space.

[0069] Further, the intermediate connecting piece 26 includes a third long-shaped member 261, and fourth connecting pieces 262 are arranged at both ends of the third long-shaped member 261.

[0070] The fourth connecting pieces 262 are inserted into the end portions of the third long-shaped member 261, and the fourth connecting pieces 262 are provided with notched downward fixing grooves 263.

[0071] When assembling, the fixing grooves 263 are clamped on the upper ends of the first inner push frame body 251 and the second inner push frame body 252.

[0072] Specifically, as shown in Figure 2 、 Figure 6 The intermediate connecting piece 26 includes a third long-shaped member 261, and fourth connecting pieces 262 are arranged at both ends of the third long-shaped member 261.

[0073] The fourth connecting pieces 262 are provided with insertion cavities in the horizontal direction for inserting the end portions of the third long-shaped member 261, and one end of the insertion cavities is provided with notched downward fixing grooves 263.

[0074] When assembling, the fixing grooves 263 are clamped on the upper ends of the first inner push frame body 251 and the second inner push frame body 252.

[0075] In the embodiment, the first inner push frame body 251 and the second inner push frame body 252 are fixed by the intermediate connecting piece 26, thereby improving the stability of the first inner push frame body 251 and the second inner push frame body 252 after unfolding.

[0076] Further, notches 253 are arranged adjacent to the upper ends of the first inner push frame body 251 and the second inner push frame body 252.

[0077] The notches 253 are provided with clamping protrusions 254.

[0078] During assembly, the fixing groove 263 engages with the locking protrusion 254.

[0079] In specific implementation, such as Figure 6 As shown, a notch 253 is provided at the upper adjacent position of the first inner push frame 251 and the second inner push frame 252; a protruding locking protrusion 254 is provided in the notch 253; the shape of the locking protrusion 254 is adapted to the fixing groove 263.

[0080] When the intermediate connector 26 is assembled with the first inner push frame 251 and the second inner push frame 252, the fixing groove 263 engages with the locking protrusion 254. In this embodiment, the structure combining the notch 253, the locking protrusion 254, and the fixing groove 263 can stably limit the intermediate connector 26, avoiding the problem of instability in the stack head structure caused by displacement of the intermediate connector 26.

[0081] Furthermore, the first frame 24 is formed by two vertically arranged fourth elongated members 241, a horizontally arranged fifth elongated member 242, and a sixth elongated member 243; the fifth elongated member 242 and the sixth elongated member 243 are arranged above and below; a seventh elongated member 246 is provided at the upper end of the two fourth elongated members 241;

[0082] The sixth elongated component 243 has a fourth slot 23 along its length on its side wall; the fourth elongated component 241 has a third slot 22 along its length.

[0083] The sidewall of the fourth elongated member 241 is hinged to the adjacent second frame 25;

[0084] The upper end of the fourth elongated component 241 is detachably connected to the fifth elongated component 242 and the seventh elongated component 246 via the third connector 244, and the lower end is detachably connected to the sixth elongated component 243 via the fifth connector 245.

[0085] The upper end of the seventh elongated component 246 is inserted and connected to the upper frame 10.

[0086] In specific implementation, such as Figure 7 As shown, the first frame 24 is formed by two vertically arranged fourth elongated members 241, a horizontally arranged fifth elongated member 242, and a sixth elongated member 243; the fifth elongated member 242 and the sixth elongated member 243 are arranged above and below; a vertically arranged seventh elongated member 246 is provided at the upper end of the two fourth elongated members 241.

[0087] The sixth elongated component 243 has a fourth slot 23 along its length on its side wall; the fourth elongated component 241 has a third slot 22 along its length.

[0088] The side wall of the fourth elongated member 241 is hinged to the adjacent second frame 25 via a hinge 27;

[0089] The upper end of the fourth long member 241 is connected to the fifth long member 242 and the seventh long member 246 through the third connecting member 244, and the lower end is connected to the sixth long member 243 through the fifth connecting member 245; the third connecting member 244 is a three-way connecting member with plug-in cavities at the upper end, the lower end and the horizontal end; the fifth connecting member is a two-way connecting member with plug-in cavities at the upper end and the horizontal end;

[0090] The upper end of the seventh long member 246 is connected to the first connecting member 12 of the upper frame 10.

[0091] Further, the upper frame 10 includes a plurality of first long members 13, and each of the two ends of the first long member 13 is provided with a first connecting member 12.

[0092] The first long member 13 is provided with the first clamping slot 11 along its axial direction.

[0093] The first connecting member 12 includes a first part connecting member 122 and a second part connecting member 123; the horizontal and vertical directions of the first part connecting member 122 and the second part connecting member 123 are provided with plug-in cavities; the horizontal plug-in cavities of the first part connecting member 122 and the second part connecting member 123 are respectively connected to the adjacent first long member 13, and the vertical plug-in cavities are connected to the upper end of the same long member of the lower frame 20.

[0094] In specific implementation, as shown in Figure 4 , Figure 8 and Figure 9 , the upper frame 10 includes four first long members 13, and each of the two ends of the first long member 13 is provided with a first connecting member 12.

[0095] The first long member 13 is provided with the first clamping slot 11 along its axial direction.

[0096] The first connecting member 12 includes a first part connecting member 122 and a second part connecting member 123; the horizontal and vertical directions of the first part connecting member 122 and the second part connecting member 123 are provided with plug-in cavities; the horizontal plug-in cavities of the first part connecting member 122 and the second part connecting member 123 are respectively connected to the adjacent first long member 13, and the vertical plug-in cavities are connected to the upper end of the same long member of the lower frame 20.

[0097] When the inner push folding is stored, the upper frame 10 only needs to disassemble the first long member 13 above the second frame 25, without disassembling the entire upper frame 10, which is more convenient for storage and assembly.

[0098] Further, the connecting pieces at the corners of the first clamping slot 11, the second clamping slot 21, the third clamping slot 22 and the fourth clamping slot 23 are all provided with a communication groove; the communication groove communicates the first clamping slot 11, the second clamping slot 21, the third clamping slot 22 and the fourth clamping slot 23.

[0099] In the embodiment, the first connecting piece 12 is provided with a first communication groove 121 (as shown in FIG. 1) which communicates the first clamping slot 11 and the second clamping slot 21; the seventh long-shaped member 246 is provided with the second clamping slot 21, and the seventh long-shaped member 246 is connected with the fourth long-shaped member 241 through a third connecting piece 244 (as shown in FIG. 1) which is provided with a second communication groove 2441 (as shown in FIG. 1) which communicates the second clamping slot 21 of the seventh long-shaped member 246 and the fourth long-shaped member 241; and the fifth connecting piece 245 is provided with a third communication groove 2451 (as shown in FIG. 1) which communicates the second clamping slot 21 and the fourth clamping slot 23. Figure 5 、 Figure 8 Figure 10 Figure 11 The corner communication structure of the third clamping slot 22 and the first clamping slot 11 and the fourth clamping slot 23 is the same as the corner communication structure of the second clamping slot 21 and the first clamping slot 11 and the third clamping slot 22, and thus will not be described here.

[0100] In the embodiment, the communication groove for wrapping the corner of the advertising side plate is arranged at the corner of the advertising side plate, so that the corner of the advertising side plate is protected, and the damage of the corner of the advertising side plate is reduced.

[0101] The long-shaped member includes but is not limited to a square profile.

[0102] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.​​

Claims

1. A novel pile head characterized in that, The utility model relates to a frame structure of a side plate, comprising: An upper frame (10) is provided with a first clamping groove (11) on the side, and the notch of the first clamping groove (11) faces downward. A lower frame (20) is detachably connected to the lower end of the upper frame (10), and the side of the lower frame (20) is longitudinally provided with a second clamping groove (21) and a third clamping groove (22), the notches of the second clamping groove (21) and the third clamping groove (22) are opposite, and the bottom of the lower frame (20) is provided with a fourth clamping groove (23) with a notch facing the upper frame (10). When the upper frame (10) and the lower frame (20) are assembled, the first clamping groove (11), the second clamping groove (21), the third clamping groove (22), and the fourth clamping groove (23) form a frame surrounding the side plate.

2. The novel stack head of claim 1, wherein: The upper frame (10) and the lower frame (20) are both composed of a plurality of connecting pieces and a plurality of elongated members detachably assembled by the connecting pieces.

3. The novel head as claimed in claim 2, wherein: The connecting pieces are made of one of plastic, metal, alloy, and hard fiber, and the elongated members are made of one of metal, alloy, and hard fiber.

4. The new type of stack head according to claim 2, characterized in that: The connecting pieces at the corners of the first clamping groove (11), the second clamping groove (21), the third clamping groove (22), and the fourth clamping groove (23) are all provided with communication grooves, and the communication grooves communicate the first clamping groove (11), the second clamping groove (21), the third clamping groove (22), and the fourth clamping groove (23).

5. The novel stack head of claim 1, wherein: The upper frame (10) is provided with a reserved groove (14).

6. A novel stack head according to any one of claims 2-5, characterized in that: The lower frame (20) is composed of four sides by a first frame (24) and a second frame (25). The second frame (25) is composed of a first inner push frame (251) and a second inner push frame (252) hinged to the first inner push frame (251), and the bottom of the first inner push frame (251) and the second inner push frame (252) is provided with a fourth clamping groove (23) along the length direction. The first inner push frame (251) and the second inner push frame (252) are respectively hinged to the adjacent first frame (24), and the first inner push frame (251) and the second inner push frame (252) can be folded inward. An intermediate connecting piece (26) is arranged between the two second frames (25). When assembled, the intermediate connecting piece (26) is detachably connected to the first inner push frame (251) and the second inner push frame (252).

7. The novel stack head of claim 6, wherein: The intermediate connecting piece (26) comprises a third elongated member (261), and the two ends of the third elongated member (261) are respectively provided with a fourth connecting piece (262). The fourth connecting piece (262) is inserted into the end of the third elongated member (261), and the fourth connecting piece (262) is provided with a fixed groove (263) with a downward notch. When assembled, the fixed groove (263) is clamped on the upper end of the first inner push frame (251) and the second inner push frame (252).

8. The novel stack head of claim 7, wherein: The upper end of the first inner push frame (251) and the second inner push frame (252) is provided with a notch (253). The notch (253) is provided with a clamping convex (254). When assembled, the fixed groove (263) is clamped with the clamping convex (254).

9. The novel stack head of claim 6, wherein: The first frame (24) is surrounded by two fourth long-shaped members (241) arranged vertically, a fifth long-shaped member (242) and a sixth long-shaped member (243) arranged horizontally; the fifth long-shaped member (242) and the sixth long-shaped member (243) are arranged above and below; the upper ends of the two fourth long-shaped members (241) are provided with a seventh long-shaped member (246); The side wall of the sixth long-shaped member (243) is provided with the fourth clamping groove (23) along the length direction; the fourth long-shaped member (241) is provided with a third clamping groove (22) along the length direction; The side wall of the fourth long-shaped member (241) is hinged with the adjacent second frame (25); The upper end of the fourth long-shaped member (241) is detachably connected with the fifth long-shaped member (242) and the seventh long-shaped member (246) through a third connecting piece (244), and the lower end is detachably connected with the sixth long-shaped member (243) through a fifth connecting piece (245); The upper end of the seventh long-shaped member (246) is connected with the upper frame (10) through insertion.

10. A novel stack head according to any one of claims 7-9, characterized in that: The upper frame (10) comprises a plurality of first long-shaped members (13), and the two ends of each first long-shaped member (13) are respectively provided with a first connecting piece (12); The first long-shaped member (13) is provided with the first clamping groove (11) along the axial direction thereof; The first connecting piece (12) comprises a first split connecting piece (122) and a second split connecting piece (123); the horizontal and vertical directions of the first split connecting piece (122) and the second split connecting piece (123) are provided with insertion cavities; the horizontal insertion cavities of the first split connecting piece (122) and the second split connecting piece (123) are respectively inserted with the adjacent first long-shaped member (13), and the vertical insertion cavities are inserted with the upper end of the same long-shaped member of the lower frame (20).

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