Hanging type blow molding seat

Abstract

The utility model discloses a hanging type blow molding seat which comprises an L-shaped blow molding piece (1), a support is arranged at the bottom of the blow molding piece (1) and comprises a vertical beam (2) located on the rear side of the blow molding piece (1), a mounting hole (3) is formed in the vertical beam (2), a cantilever beam (4) is arranged on the front side of the vertical beam (2), a cross beam (5) is arranged at the front end of the cantilever beam (4), and the cantilever beam (4) and the cross beam (5) are both fixed to the bottom of the blow molding piece (1). The two ends of the cross beam (5) are provided with supporting beams (6) fixed to the lower ends of the vertical beams (2). The two mounting holes (3) are located in the upper ends and the lower ends of the vertical beams (2) respectively. Two first concave areas (7) are arranged on the bottom face of the blow molding piece (1), and the rear ends of the first concave areas (7) extend upwards along the rear side face of the blow molding piece (1) and are close to the top of the blow molding piece (1). The utility model has the advantages of lower cost, time-saving installation and lower labor intensity of workers during installation.

Description

Technical Field

[0001] This utility model belongs to the field of hanging blow-molded seats. Background Technology

[0002] The structure of the hanging blow-molded seat includes an L-shaped blow-molded part. The bottom of the blow-molded part forms the seat plate, and the rear side forms the backrest. The blow-molded part is screwed to two iron brackets. Copper nuts are pre-installed on the bottom surface of the blow-molded part during the blow-molding process. The brackets are connected to the blow-molded part by screws that mate with the copper nuts. Two screws connect the brackets to the blow-molded part, and a total of four copper nuts are present on the bottom of the blow-molded part. During installation, the brackets are suspended and fixed to the ground using expansion bolts, ensuring unobstructed access and facilitating cleaning. This type of seat is commonly used in public places such as stadiums, as shown in the figure, where the seats are arranged and suspended from the steps of the stands.

[0003] In actual engineering, the installation of seats presents challenges. Because the blow-molded backrest is close to the step wall, the limited operating space between the blow-molded part and the step wall makes it difficult to fix the brackets to the step wall. Therefore, the two brackets are first fixed to the step wall of the grandstand, and then the blow-molded part is fixed to the two brackets. This presents the following problems.

[0004] First, when placing the blow-molded part on two supports and connecting it with screws, the holes on the supports need to be aligned with the copper nuts. This involves a process of getting it right, which requires adjusting not only the left and right positions of the blow-molded part, but also its front and back positions. Since the screws are connected at the bottom of the blow-molded part, workers have to bend over to observe the alignment, which is labor-intensive and time-consuming.

[0005] Secondly, each seat is equipped with two brackets, which is costly, and each bracket requires at least two expansion bolts to connect to the step wall, making installation time-consuming. Utility Model Content

[0006] The purpose of this invention is to provide a hanging blow-molded seat. This invention has the advantages of low cost, time-saving installation, and low labor intensity for workers during installation.

[0007] The technical solution of this utility model is as follows: a hanging blow-molded seat, including an L-shaped blow-molded part, a support at the bottom of the blow-molded part, the support including a vertical beam located at the rear side of the blow-molded part, the vertical beam having mounting holes, a cantilever beam at the front side of the vertical beam, a crossbeam at the front end of the cantilever beam, both the cantilever beam and the crossbeam being fixed to the bottom of the blow-molded part, and support beams fixed to the lower end of the vertical beam at both ends of the crossbeam.

[0008] In the aforementioned hanging blow-molded seat, there are two mounting holes, which are located at the upper and lower ends of the vertical beam, respectively.

[0009] In the aforementioned hanging blow-molded seat, the bottom surface of the blow-molded part is provided with two first recessed areas symmetrically distributed about the middle bisecting surface of the blow-molded part. The rear end of the first recessed area extends upward along the rear side of the blow-molded part and approaches the top of the blow-molded part, and the front end of the first recessed area approaches the front end of the blow-molded part.

[0010] In the aforementioned hanging blow-molded seat, a second recessed area is provided on the bottom surface of the blow-molded part to cooperate with the cantilever beam. The rear end of the second recessed area penetrates through the blow-molded part, and the cantilever beam is embedded in the second recessed area. The bottom surface of the cantilever beam is lower than the bottom surface of the blow-molded part.

[0011] In the aforementioned hanging blow-molded seat, a first copper nut is embedded on the bottom surface of the second recessed area. The first copper nut is close to the rear side wall of the blow-molded part, and the first copper nut is connected to the cantilever beam by a first screw.

[0012] In the aforementioned hanging blow-molded seat, the bottom of the blow-molded part is provided with a third recessed area that cooperates with the crossbeam. The third recessed area passes vertically through the first recessed area and the second recessed area. The crossbeam is embedded in the third recessed area. The bottom surface of the crossbeam is lower than the bottom surface of the blow-molded part. The support beam is fixed to the bottom of the crossbeam.

[0013] In the aforementioned hanging blow-molded seat, two second copper nuts are embedded on the bottom surface of the third recessed area. The two second copper nuts are symmetrically distributed about the cantilever beam, and the second copper nuts are connected to the crossbeam by second screws.

[0014] In the aforementioned hanging blow-molded seat, the bottom of the blow-molded part is provided with multiple elongated fourth recessed areas, which are parallel to the cantilever beam.

[0015] Compared with existing technologies, this invention improves the structure of the support frame by incorporating a cantilever beam, a crossbeam at the front end of the cantilever beam, and a support beam between the end of the crossbeam and the vertical beam. This ensures effective support on both sides of the blow-molded part, maintaining stability even under unilateral stress. Therefore, only one support frame is needed per seat. While the cost of the improved single support frame is slightly higher than existing single supports, it is significantly lower than the cost of two existing supports, thus reducing the overall cost of the seat and the number of expansion bolts required for installation, making installation more time-efficient. This invention also improves the blow-molded part by creating a recessed area on its bottom surface that mates with the crossbeam and cantilever beam. After placing the blow-molded part on the support frame, the copper nut on the part automatically aligns with the hole on the frame, eliminating the need for manual alignment, reducing labor intensity, and further saving installation time. Therefore, this invention offers advantages such as lower cost, faster installation, and reduced labor intensity for installers. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a structural diagram of a blow-molded part.

[0018] Figure 3 This is a schematic diagram of the support structure.

[0019] The labels in the attached diagram are: 1-blow molded part, 2-vertical beam, 3-mounting hole, 4-cantilever beam, 5-cross beam, 6-support beam, 7-first recessed area, 8-second recessed area, 9-first copper nut, 10-first screw, 11-third recessed area, 12-second copper nut, 13-second screw, 14-fourth recessed area. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0021] Example: A hanging blow-molded seat, such as Figure 1 As shown, the blow-molded part 1 is L-shaped, with a base plate formed at the bottom and a backing plate formed at the rear. A support is provided at the bottom of the blow-molded part 1.

[0022] The support includes a vertical beam 2 located behind the blow-molded part 1. The vertical beam 2 has two mounting holes 3, which are located at the upper and lower ends of the vertical beam 2, respectively. The vertical beam 2 is made of angle steel.

[0023] A cantilever beam 4 is provided on the front side of the vertical beam 2. The rear end of the cantilever beam 4 is welded to the upper part of the vertical beam 2. A crossbeam 5 is provided at the front end of the cantilever beam 4. The top surface of the middle part of the crossbeam 5 is welded and fixed to the bottom surface of the front end of the cantilever beam 4. Both the cantilever beam 4 and the crossbeam 5 are fixed to the bottom of the blow-molded part 1. Support beams 6 are provided at both ends of the crossbeam 5 and fixed to the lower end of the vertical beam 2. The two ends of the support beams 6 are welded and fixed. The cantilever beam 4, the crossbeam 5 and the support beams 6 are all made of square tubing.

[0024] The bottom surface of the blow-molded part 1 has two first recessed areas 7 symmetrically distributed about the midpoint of the blow-molded part 1. The rear end of the first recessed area 7 extends upward along the rear side of the blow-molded part 1 and approaches the top of the blow-molded part 1, while the front end of the first recessed area 7 approaches the front end of the blow-molded part 1. The blow-molded part 1 is blow-molded in a mold. By setting the first recessed area 7 that penetrates the bottom surface and rear sidewall of the blow-molded part 1, four reinforcing ribs are added to the bending point of the blow-molded part 1, resulting in greater structural strength at the bending point and the ability to withstand greater backward force without easily bending.

[0025] The bottom surface of the blow-molded part 1 has a second recessed area 8 that mates with the cantilever beam 4. The rear end of the second recessed area 8 penetrates the blow-molded part 1, and the cantilever beam 4 is embedded in the second recessed area 8. The top surface of the cantilever beam 4 is in contact with the bottom surface of the second recessed area 8, and the bottom surface of the cantilever beam 4 is lower than the bottom surface of the blow-molded part 1. A first copper nut 9 is embedded on the bottom surface of the second recessed area 8. The first copper nut 9 is close to the rear sidewall of the blow-molded part 1 and is connected to the cantilever beam 4 by a first screw 10. The second recessed area 8 enables the blow-molded part 1 to be positioned left and right on the support. The second recessed area 8 adds two reinforcing ribs to the inside of the seat plate of the blow-molded part 1, allowing the seat plate to withstand greater weight.

[0026] The bottom of the blow-molded part 1 is provided with a third recessed area 11 that cooperates with the crossbeam 5. The third recessed area 11 passes vertically through the first recessed area 7 and the second recessed area 8. The crossbeam 5 is embedded in the third recessed area 11, with the bottom surface of the crossbeam 5 lower than the bottom surface of the blow-molded part 1 and the top surface of the crossbeam 5 fitting against the bottom surface of the third recessed area 11. The support beam 6 is fixed to the bottom of the crossbeam 5. Two second copper nuts 12 are embedded on the bottom surface of the third recessed area 11. The two second copper nuts 12 are symmetrically distributed about the cantilever beam 4, and the second copper nuts 12 are connected to the crossbeam 5 by second screws 13. The third recessed area 11 is used to achieve the front and rear positioning of the blow-molded part 1 on the support.

[0027] The bottom of the blow-molded part 1 has four elongated fourth recessed areas 14, which are parallel to the cantilever beam 4. The fourth recessed areas 14 add more reinforcing ribs to the seat plate of the blow-molded part 1, allowing the seat plate to withstand greater weight.

[0028] The thickness of the blow-molded part is 6cm, the wall thickness of the blow-molded part is 4mm, the depth of the first recessed area 7, the second recessed area 8 and the fourth recessed area 14 is 5.2cm, the depth of the third recessed area 11 is 1.2cm, and the height of the cantilever beam 4 is 4cm.

[0029] In the initial state, the blow-molded part 1 and the bracket are separate. During assembly and installation, first use expansion bolts to fix the bracket to the step wall or wall through the mounting hole 3. Then place the blow-molded part 1 on the bracket. The cantilever beam 4 enters the second recessed area 8, and the bracket and the blow-molded part are positioned in the left-right direction. At the same time, the crossbeam 5 enters the third recessed area 11, and the bracket and the blow-molded part are positioned in the front-back direction. Thus, the first copper nut 9 and the second copper nut 12 are aligned with the holes on the cantilever beam 4 and the crossbeam 5, respectively. The bracket and the blow-molded part 1 can be fixed with screws.

[0030] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

Claims

1. A hanging blow-molded seat, comprising an L-shaped blow-molded part (1), wherein the bottom of the blow-molded part (1) is provided with a bracket, characterized in that: The bracket includes a vertical beam (2) located on the rear side of the blow molded part (1), the vertical beam (2) is provided with mounting holes (3), the front side of the vertical beam (2) is provided with a cantilever beam (4), the front end of the cantilever beam (4) is provided with a crossbeam (5), the cantilever beam (4) and the crossbeam (5) are both fixed to the bottom of the blow molded part (1), and both ends of the crossbeam (5) are provided with support beams (6) fixed to the lower end of the vertical beam (2).

2. The hanging blow-molded seat according to claim 1, characterized in that: There are two mounting holes (3), which are located at the upper and lower ends of the vertical beam (2), respectively.

3. The hanging blow-molded seat according to claim 1, characterized in that: The bottom surface of the blow molded part (1) is provided with two first recessed areas (7) symmetrically distributed about the middle bisecting surface of the blow molded part (1). The rear end of the first recessed area (7) extends upward along the rear side of the blow molded part (1) and is close to the top of the blow molded part (1). The front end of the first recessed area (7) is close to the front end face of the blow molded part (1).

4. The hanging blow-molded seat according to claim 3, characterized in that: The bottom surface of the blow-molded part (1) is provided with a second recessed area (8) that cooperates with the cantilever beam (4). The rear end of the second recessed area (8) penetrates the blow-molded part (1). The cantilever beam (4) is embedded in the second recessed area (8). The bottom surface of the cantilever beam (4) is lower than the bottom surface of the blow-molded part (1).

5. The hanging blow-molded seat according to claim 4, characterized in that: A first copper nut (9) is embedded on the bottom surface of the second recessed area (8). The first copper nut (9) is close to the rear side wall of the blow molded part (1). The first copper nut (9) is connected to the cantilever beam (4) by the first screw (10).

6. The hanging blow-molded seat according to claim 4, characterized in that: The bottom of the blow-molded part (1) is provided with a third recessed area (11) that cooperates with the crossbeam (5). The third recessed area (11) passes vertically through the first recessed area (7) and the second recessed area (8). The crossbeam (5) is embedded in the third recessed area (11). The bottom surface of the crossbeam (5) is lower than the bottom surface of the blow-molded part (1). The support beam (6) is fixed to the bottom of the crossbeam (5).

7. The hanging blow-molded seat according to claim 6, characterized in that: Two second copper nuts (12) are embedded on the bottom surface of the third recessed area (11). The two second copper nuts (12) are symmetrically distributed about the cantilever beam (4). The second copper nuts (12) are connected to the crossbeam (5) by the second screw (13).

8. The hanging blow-molded seat according to claim 6, characterized in that: The bottom of the blow-molded part (1) is provided with multiple elongated fourth recessed areas (14), which are parallel to the cantilever beam (4).

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