Fabricated steel structure residential floor

Abstract

The utility model discloses an assembly type steel structure residential floor slab, and relates to the technical field of floor slabs, the assembly type steel structure residential floor slab comprises a support assembly, the support assembly is used for providing support for a house; the limiting assembly is arranged on the outer side of the supporting assembly, and the limiting assembly is used for limiting the supporting assembly; the fixing assembly is arranged on the outer side of the limiting assembly, the fixing assembly is used for fixing the limiting assembly, the supporting assembly comprises two first steel plates, the two first steel plates are distributed in parallel, a second steel plate is arranged between the two first steel plates, and the second steel plate is arranged between the two first steel plates. According to the utility model, support can be provided for a house, and a worker can assemble the house conveniently, so that the worker can assemble and disassemble the house conveniently, and the worker can maintain the house conveniently in a later period.

Description

TECHNICAL FIELD

[0001] The utility model relates to floor technology field, concretely is a kind of fabricated steel structure residential floor. BACKGROUND

[0002] Residential floor is the important structural component of building load-bearing and separating floor, usually made of reinforced concrete, steel structure residential floor refers to the floor system used in steel structure residential building, this floor usually combines the advantages of steel structure, such as high strength, light weight and construction speed fast etc.

[0003] For the related technology in the above, the inventor believes that there are the following defects: although it can bear the weight of the house, it is not convenient for later maintenance, so it is not convenient for daily cleaning and maintenance, and the maintenance difficulty is improved, so we propose a kind of fabricated steel structure residential floor to solve the above problems. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of prior art, the utility model provides a kind of fabricated steel structure residential floor, solve the problem of inconvenient later maintenance.

[0005] To achieve the above object, the utility model is realized by the following technical scheme: a kind of fabricated steel structure residential floor, including support assembly, the support assembly is used to provide support to residence;

[0006] Limiting component, the limiting component is set to the outer side of the support assembly, the limiting component is used to limit support assembly;And

[0007] Fixed component, the fixed component is set to the outer side of the limiting component, the fixed component is used to fix limiting component.

[0008] Preferably, the support assembly includes a first steel plate, the first steel plate is provided with two, two the first steel plate is in parallel distribution, two the first steel plate between the second steel plate is provided, the second steel plate is provided with multiple, multiple the second steel plate is in linear array mode distribution, the second steel plate both ends central position of each is provided with the clamping column, two first steel plate one side surface relative position is all set with clamping groove, the clamping groove is set with multiple, multiple the clamping groove is in linear array mode distribution, the clamping groove inner chamber is connected with the clamping column.

[0009] Preferably, the limiting component includes a first C-shaped frame and a second C-shaped frame, the first C-shaped frame and the second C-shaped frame are respectively arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first C-shaped frame and the second C-shaped frame are arranged on both sides of the two first steel plates, the first

[0010] Preferably, the first C-shaped frame and the second C-shaped frame are provided with pin holes on the top surface and the bottom surface, and the pin holes are connected with the fixing assembly.

[0011] Preferably, the fixing assembly comprises a first fixing plate arranged on the top surface and the bottom surface of the first C-shaped frame and the second C-shaped frame, a second fixing plate arranged below the first fixing plate, a plurality of screw rods arranged on both sides of the bottom surface of the first fixing plate, a plurality of stepped holes arranged on both sides of the bottom surface of the second fixing plate, a screw cap arranged in each stepped hole, and a supplementary hole arranged on the top surface of the first fixing plate.

[0012] Preferably, the first fixing plate and the second fixing plate are provided with positioning pins on both sides of the top surface and the bottom surface, and the positioning pins are connected with the pin holes.

[0013] Beneficial effects

[0014] The utility model provides a kind of fabricated steel structure residential floor slab.Compared with prior art, it has the following beneficial effects:

[0015] The fabricated steel structure residential floor slab, when it needs to be assembled, first, the supporting assembly is placed in the preset position, then the limiting assembly is fixedly connected outside the supporting assembly, since the limiting assembly is fixedly connected with the fixing assembly outside, so that the limiting assembly can limit the supporting assembly, and then the fixing assembly can fix the limiting assembly and the supporting assembly, so as to improve the stability of the supporting assembly, and then the stability of the supporting assembly can be improved, so as to improve the safety. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the overall sectional structure schematic diagram of the utility model;

[0017] Figure 2 It is the supporting assembly structure schematic diagram of the utility model;

[0018] Figure 3 It is the limiting assembly structure schematic diagram of the utility model;

[0019] Figure 4 It is the fixing assembly structure schematic diagram of the utility model.

[0020] In the figure: 1, support assembly; 11, first steel plate; 12, second steel plate; 13, clamping groove; 14, clamping column; 2, limiting assembly; 21, first C-shaped frame; 22, second C-shaped frame; 23, connecting plate; 24, connecting groove; 25, limiting groove; 26, first limiting plate; 27, second limiting plate; 28, pin hole; 29, fixed block; 210, special-shaped insertion slot; 211, special-shaped insertion block; 3, fixing assembly; 31, first fixing plate; 32, second fixing plate; 33, screw; 34, stepped hole; 35, nut; 36, supplementary hole; 37, positioning pin. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0022] Please refer to Figures 1-4 The utility model provides a kind of technical scheme: a fabricated steel structure residential floor, including support assembly 1, support assembly 1 is used to provide support to residence;Limiting assembly 2, limiting assembly 2 is set to the outside of support assembly 1, limiting assembly 2 is used to limit support assembly 1;And fixing assembly 3, fixing assembly 3 is set to the outside of limiting assembly 2, fixing assembly 3 is used to fix limiting assembly 2;

[0023] When the fabricated steel structure residential floor needs to be assembled, first, support assembly 1 is placed in the preset position, then limiting assembly 2 is fixedly connected to the outside of support assembly 1, since limiting assembly 2 is fixedly connected with fixing assembly 3 outside, so that limiting assembly 2 can limit support assembly 1, and then fixing assembly 3 can fix limiting assembly 2 and support assembly 1, so as to improve the stability of support assembly 1, and then the stability of support assembly 1 can be improved, so as to improve the safety.

[0024] Please refer to Figure 1 、 Figure 2 Support assembly 1 includes first steel plate 11, first steel plate 11 is provided with two, two first steel plates 11 are in parallel distribution, second steel plate 12 is arranged between two first steel plates 11, second steel plate 12 is provided with a plurality of, a plurality of second steel plates 12 are distributed in linear array mode, clamping column 14 is arranged at the middle position of both ends of each second steel plate 12, clamping groove 13 is formed in the opposite position of the surface of two first steel plates 11, clamping groove 13 is provided with a plurality of, a plurality of clamping grooves 13 are distributed in linear array mode, and the inner cavity of clamping groove 13 is connected with clamping column 14.

[0025] The two first steel plates 11 in the supporting assembly 1 can be placed in the preset position and provide a mounting base for the plurality of second steel plates 12. Since the two ends of each second steel plate 12 are fixedly connected with the clamping columns 14, and the opposite positions of the side surfaces of the two first steel plates 11 are provided with the clamping grooves 13, and the clamping grooves 13 are provided with a plurality of clamping grooves 13, and the inner cavities of the clamping grooves 13 are connected with the clamping columns 14, so that the clamping columns 14 can be inserted into the inner cavities of the clamping grooves 13, and then the clamping columns 14 can fix the second steel plates 12, so that the two first steel plates 11 can limit the second steel plates 12, and then the stability of the second steel plates 12 can be improved, so that the supporting strength of the first steel plates 11 to the second steel plates 12 can be improved.

[0026] Referring to Figure 1 , Figure 3 The limiting assembly 2 comprises a first C-shaped frame 21 and a second C-shaped frame 22. The first C-shaped frame 21 and the second C-shaped frame 22 are respectively arranged on the two sides of the two first steel plates 11. The two ends of the first C-shaped frame 21 and the second C-shaped frame 22 are provided with the connecting plates 23. The two ends of the first C-shaped frame 21 and the second C-shaped frame 22 are provided with the connecting grooves 24. The inner cavities of the connecting grooves 24 are provided with the fixing blocks 29. The top surface and the bottom surface of the first C-shaped frame 21 and the second C-shaped frame 22 are provided with the pin holes 28, which are connected with the fixing assembly 3.

[0027] The first C-shaped frame 21 and the second C-shaped frame 22 in the limiting assembly 2 can be fixedly connected on both sides of the first steel plate 11 and provide mounting bases for the two connecting plates 23. Since the first C-shaped frame 21 and the second C-shaped frame 22 are provided with connecting grooves 24 at two ends, the connecting grooves 24 are inserted with fixing blocks 29, and the two fixing blocks 29 are connected with the connecting plates 23 on both sides, so that the fixing blocks 29 are inserted into the connecting grooves 24, and then the connecting plates 23 can form an integral whole with the two first C-shaped frames 21 and the second C-shaped frame 22, so as to limit the first C-shaped frame 21 and the second C-shaped frame 22 to the first steel plate 11 and the second steel plate 12, thereby improving the stability of the fixed first steel plate 11 and the second steel plate 12. Since the first C-shaped frame 21 and the second C-shaped frame 22 are provided with special-shaped insertion grooves 210 at the center positions of the two side surfaces, and the two fixing blocks 29 are fixedly connected with special-shaped insertion blocks 211 on both sides, so that the special-shaped insertion blocks 211 are inserted into the special-shaped insertion grooves 210, and then the special-shaped insertion grooves 210 can guide the fixing blocks 29, so as to improve the stability of the connecting plates 23. Since the first C-shaped frame 21 and the second C-shaped frame 22 are provided with pin holes 28 on the top surface and the bottom surface, and the pin holes 28 are connected with the fixing assembly 3, so that the fixing assembly 3 can fix the first C-shaped frame 21 and the second C-shaped frame 22, and then form an integral whole, so as to improve the strength of the residential floor.

[0028] Referring to Figure 1 、 Figure 4 , the fixing assembly 3 comprises a first fixing plate 31 and a second fixing plate 32. The first fixing plate 31 is arranged on the top surface and the bottom surface of the first C-shaped frame 21 and the second C-shaped frame 22. The bottom surface of the first fixing plate 31 is provided with screw rods 33 on both sides. The screw rods 33 are arranged in a linear array. The bottom surface of the second fixing plate 32 is provided with stepped holes 34 on both sides. The stepped holes 34 are arranged in a linear array. The inner cavity of each stepped hole 34 is provided with a screw cap 35. The inner cavity of the screw cap 35 is connected with the bottom end of the screw rod 33. The top surface of the first fixing plate 31 is provided with a supplementary hole 36. The bottom surface and the top surface of the first fixing plate 31 and the second fixing plate 32 are provided with positioning pins 37 on both sides. The positioning pins 37 are connected with the inner cavity of the pin hole 28.

[0029] The first fixing plate 31 and the second fixing plate 32 in the fixing assembly 3 can be fixedly connected to the top surface and the bottom surface of the first C-shaped frame 21 and the second C-shaped frame 22, and can provide a mounting base for the plurality of screw rods 33. Since the plurality of screw rods 33 are fixedly connected, and a plurality of stepped holes 34 are formed on the bottom surface of the second fixing plate 32, and a screw cap 35 is movably connected in the inner cavity of each stepped hole 34, and the inner cavity of the screw cap 35 is connected with the bottom end of the screw rod 33, the screw rod 33 can be inserted into the inner cavity of the stepped hole 34, and then the screw cap 35 can fix the screw rod 33, and then the screw cap 35 can fix the first fixing plate 31 and the second fixing plate 32, so as to improve the strength of the residential floor, and then improve the safety. Since the supplementary hole 36 is formed on the top surface of the first fixing plate 31, the staff can fill the fire stopping material into the inner cavity, so as to prevent the flame from spreading when the fire occurs, so as to improve the safety. Since the positioning pin 37 is fixedly connected to the top surface and the bottom surface of the first fixing plate 31 and the second fixing plate 32, and the positioning pin 37 is connected with the inner cavity of the pin hole 28, the positioning pin 37 can be inserted into the inner cavity of the pin hole 28, and then the fitting degree of the first fixing plate 31 and the second fixing plate 32 can be improved, so as to improve the sealing performance.

[0030] When the assembled steel structure residential floor needs to be assembled, the support assembly 1 is placed in the preset position, and then the limiting assembly 2 is fixedly connected to the outer side of the support assembly 1. Since the limiting assembly 2 is fixedly connected with the fixing assembly 3 on the outer side, the limiting assembly 2 can limit the support assembly 1, and then the fixing assembly 3 can fix the limiting assembly 2 and the support assembly 1, so as to improve the stability of the support assembly 1, and then improve the stability of the support assembly 1, so as to improve the safety.

[0031] The two first steel plates 11 in the support assembly 1 can be placed in the preset position, and can provide a mounting base for the plurality of second steel plates 12. Since the second steel plate 12 is fixedly connected to the center position of the two ends, and the first steel plate 11 is fixedly connected with the second steel plate 12, the first steel plate 11 can limit the second steel plate 12, and then the first steel plate 11 can improve the stability of the second steel plate 12, and then the first steel plate 11 can improve the support strength of the second steel plate 12.

[0032] The first C-shaped frame 21 and the second C-shaped frame 22 in the limiting assembly 2 can be fixedly connected on both sides of the first steel plate 11 and provide mounting bases for the two connecting plates 23. Since the two ends of the first C-shaped frame 21 and the second C-shaped frame 22 are provided with connecting grooves 24, and the connecting grooves 24 are inserted with fixing blocks 29, and the two fixing blocks 29 are connected with the connecting plates 23 on both sides, the fixing blocks 29 can be inserted into the connecting grooves 24, and then the connecting plates 23 can form a whole with the two first C-shaped frames 21 and the second C-shaped frame 22, so that the first C-shaped frame 21 and the second C-shaped frame 22 can limit the first steel plate 11 and the second steel plate 12, thereby improving the stability of the fixed first steel plate 11 and the second steel plate 12. Since the middle positions of the two side surfaces of the first C-shaped frame 21 and the second C-shaped frame 22 are provided with special-shaped insertion grooves 210, and the two fixing blocks 29 are fixedly connected with special-shaped insertion blocks 211 on both sides, the special-shaped insertion blocks 211 can be inserted into the special-shaped insertion grooves 210, and then the special-shaped insertion grooves 210 can guide the fixing blocks 29, so as to improve the stability of the connecting plates 23. Since the top surface and the bottom surface of the first C-shaped frame 21 and the second C-shaped frame 22 are provided with pin holes 28, and the pin holes 28 are connected with the fixing assembly 3, the fixing assembly 3 can fix the first C-shaped frame 21 and the second C-shaped frame 22, and then form a whole, so as to improve the strength of the residential floor.

[0033] The first fixing plate 31 and the second fixing plate 32 in the fixing assembly 3 can be fixedly connected on the top surface and the bottom surface of the first C-shaped frame 21 and the second C-shaped frame 22, and provide mounting bases for the screw rods 33. Since the screw rods 33 are fixedly connected with a plurality of screw rods 33, and a plurality of stepped holes 34 are formed in the bottom surface on both sides of the second fixing plate 32, and a screw cap 35 is movably connected in each stepped hole 34, and the inner cavity of the screw cap 35 is connected with the bottom end of the screw rod 33, the screw rod 33 can be inserted into the inner cavity of the stepped hole 34, and then the screw cap 35 can fix the screw rod 33, and then the screw cap 35 can fix the first fixing plate 31 and the second fixing plate 32, so as to improve the strength of the residential floor, and improve the safety. Since the first fixing plate 31 is provided with a supplementary hole 36 on the top surface, the staff can fill the fire stopping material into the inner cavity, so as to prevent the flame from spreading when the fire occurs, and improve the safety. Since the first fixing plate 31 and the second fixing plate 32 are fixedly connected with positioning pins 37 on the bottom surface on both sides and the top surface on both sides, and the positioning pins 37 are connected with the inner cavity of the pin hole 28, the positioning pins 37 can be inserted into the inner cavity of the pin hole 28, and then the fitting degree of the first fixing plate 31 and the second fixing plate 32 can be improved, so as to improve the sealing performance.

[0034] In summary, the device can provide support for the house, and can facilitate the staff to assemble, so as to facilitate the staff to assemble and disassemble, and then can facilitate the staff to maintain later.

[0035] Meanwhile, the contents not described in detail in the specification all belong to the prior art known to those skilled in the art.

Claims

1. A prefabricated steel structure residential floor slab, characterized in that: include: Support component (1), the support component (1) is used to provide support for the dwelling; A limiting component (2) is disposed outside the support component (1) and is used to limit the support component (1); and Fixing component (3) is disposed on the outside of the limiting component (2) and is used to fix the limiting component (2).

2. The fabricated steel structure residential floor according to claim 1, characterized in that: The support component (1) includes a first steel plate (11), two first steel plates (11) are provided, the two first steel plates (11) are arranged in parallel, a second steel plate (12) is provided between the two first steel plates (11), a plurality of second steel plates (12) are provided, the plurality of second steel plates (12) are arranged in a linear array, each second steel plate (12) has a locking post (14) at the center of both ends, a locking groove (13) is provided on one side surface of the two first steel plates (11) at a relative position, a plurality of locking grooves (13) are provided, the plurality of locking grooves (13) are arranged in a linear array, and the inner cavity of the locking groove (13) is connected to the locking post (14).

3. The fabricated steel structure residential floor according to claim 2, characterized in that: The limiting component (2) includes a first C-shaped frame (21) and a second C-shaped frame (22). The first C-shaped frame (21) and the second C-shaped frame (22) are respectively disposed on both sides of the two first steel plates (11). A connecting plate (23) is provided at the joint of the first C-shaped frame (21) and the second C-shaped frame (22). A connecting groove (24) is provided at both ends of the first C-shaped frame (21) and the second C-shaped frame (22). A fixing block (29) is provided in the inner cavity of the connecting groove (24).

4. The prefabricated steel structure residential floor according to claim 3, characterized in that: The top and bottom surfaces of the first C-frame (21) and the second C-frame (22) are provided with pin holes (28), which are connected to the fixing component (3).

5. The prefabricated steel structure residential floor according to claim 4, characterized in that: The fixing component (3) includes a first fixing plate (31), which is disposed on the top and bottom surfaces of the first C-frame (21) and the second C-frame (22). A second fixing plate (32) is disposed directly below the first fixing plate (31). Screws (33) are disposed on both sides of the bottom surface of the first fixing plate (31). Multiple screws (33) are disposed and distributed in a linear array. Stepped holes (34) are opened on both sides of the bottom surface of the second fixing plate (32). Multiple stepped holes (34) are opened and distributed in a linear array. A nut (35) is disposed in the inner cavity of each stepped hole (34). The inner cavity of the nut (35) is connected to the bottom end of the screw (33). A supplementary hole (36) is opened on the top surface of the first fixing plate (31).

6. The prefabricated steel structure residential floor according to claim 5, characterized in that: The first fixing plate (31) and the second fixing plate (32) are provided with positioning pins (37) on both sides of the bottom surface and both sides of the top surface, and the positioning pins (37) are connected to the inner cavity of the pin hole (28).

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