A heatable bleacher and method of manufacture and installation

Abstract

The present application relates to a kind of heating stand and manufacturing method and installation method, belong to building engineering technical field, solve the problem of existing stand without heating function, reduce the comfort of watching game.Heatable stand includes pedestal and seat;The pedestal is placed below the seat, for supporting the seat, and is fixedly connected with the seat;The pedestal is connected with stand main structure;The seat is built-in heating part and heat storage material, and the heating part is connected with power supply.The manufacturing method of heatable stand, including the following steps: design and manufacture seat mould and pedestal mould;Prepare fiber cement-based composite material;Make seat using seat mould;Pedestal is made using pedestal mould.The present application improves the comfort of watching game in outdoor in severe cold area.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building engineering, and particularly relates to a heating stand and a manufacturing method and an installation method. BACKGROUND

[0002] With the continuous innovation of the design concept of large-scale stadiums, the modeling design of the stadium is increasingly novel, and the related technology is also continuously innovated, especially the related technology of the stand affecting the use of the stadium, which is continuously improved according to the continuous change of the use environment and the material.

[0003] The manufacturing process of the traditional prefabricated stand plate is to directly pour concrete into a steel mold to form a natural effect on the surface of the concrete. Such a concrete stand has a high forming rate and good quality, and the size and dimensions can well meet the requirements. However, when there are special requirements for the use environment, such as severe cold environments, the durability of the concrete is greatly tested, and new requirements for the comfort of the stand are also put forward. For example, the recognizability, information transmission and other new requirements of the stand for night viewing are different from the traditional ones. In this case, whether it is reinforced maintenance or replacement of new stands will cause a second investment in cost. In addition, the traditional prefabricated concrete stand not only has a large weight, but also has a high transportation and hoisting cost, and the function is relatively ordinary and single, which cannot well meet the complex use requirements of modern sports viewing. SUMMARY

[0004] In view of the above analysis, the present application aims to provide a heating stand and a manufacturing method and an installation method to solve the problem of no heating function of the existing stand and reduce the viewing comfort.

[0005] The main purpose of the present application is achieved by the following technical solutions:

[0006] On the one hand, the present application provides a heating stand, which comprises a base and a seat; the base is placed below the seat to support the seat and is fixedly connected with the seat; the base is connected with a stand main body structure; the seat is internally provided with a heating part and a heat storage material, and the heating part is connected with a power supply.

[0007] Optionally, the side of the base facing the playing field is provided with a competition theme logo module.

[0008] Optionally, the side of the base facing the playing field is further provided with an electronic information and infrared identification system.

[0009] Optionally, the electronic information and infrared identification system comprises a face recognition device, a competition broadcast device, a body temperature monitoring device, a heating switch control device and an infrared identification device.

[0010] Optionally, the side of the base, the side of the seat or the bottom of the seat is provided with a lighting device.

[0011] Optionally, the power source is a solar cell.

[0012] Optionally, the power source of the electronic information and infrared recognition system is a solar cell.

[0013] Optionally, the event theme logo module is detachably connected with the base.

[0014] Optionally, the number of the base and the number of the seat are both plural.

[0015] In another aspect, the application further provides a manufacturing method of the heatable stand, for manufacturing the heatable stand, comprising the following steps:

[0016] designing and manufacturing a seat mold and a base mold;

[0017] preparing a fiber cement-based composite material;

[0018] manufacturing the seat by using the seat mold;

[0019] manufacturing the base by using the base mold.

[0020] In addition, the application further provides an installation method of the heatable stand, for installing the heatable stand, comprising the following steps:

[0021] transporting the seat and the base to the competition site, splicing and fixing the base;

[0022] placing the seat on the base;

[0023] connecting the lines and testing whether the seat can be heated;

[0024] testing whether the electronic system can work normally.

[0025] Compared with the prior art, the application can at least achieve one of the following beneficial effects:

[0026] (1) The application enables the stand to have a heatable function by placing the heating part and the heat storage material in the stand seat, thereby improving the comfort of watching the game in cold weather.

[0027] (2) The application sets the event theme logo module to be detachably connected with the base, so that different event logos can be replaced according to different events.

[0028] (3) By setting the solar photovoltaic panel on the top of the stadium, on the one hand, the heatable stand can be provided with a source of energy, and on the other hand, the stadium space can be reasonably utilized.

[0029] (4) By setting electronic information and infrared identification system including face recognition device, event broadcasting device, temperature monitoring device, heating switch control device and infrared identification device on the side of the base towards the competition field, the seat number of the spectator can be identified, the on-site broadcast message can be heard, and the seat heating system can be turned on.

[0030] (5) By setting a first mounting hole on the seat connecting part, a second mounting hole on the base, and an elastic member in the first mounting hole, the rotation and fixation of the seat can be realized, the viewing angle of the spectator can be changed, and the viewing experience and comfort of the spectator are improved.

[0031] (6) By setting a ring-shaped first shielding part on the lower surface of the bottom plate and the outer side of the connecting part, and a ring-shaped second shielding part on the upper surface of the base and the outer side of the second mounting hole, rain and snow can be prevented from entering the stand and causing circuit failure.

[0032] (7) By controlling the height of the first shielding part and the height of the second shielding part to be less than the distance between the lower surface of the bottom plate and the upper surface of the base, the first shielding part and the second shielding part can be set without affecting the cooperation of the seat and the base.

[0033] (8) By controlling the height of the first shielding part and the height of the second shielding part to be greater than half the distance between the lower surface of the bottom plate and the upper surface of the base, so that the first shielding part and the second shielding part have no gap in height, rain and snow can be effectively prevented from entering the second mounting hole, further effectively avoiding circuit failure caused by water leakage.

[0034] In the present application, the above technical solutions can be combined with each other to realize more preferred combination schemes. Other features and advantages of the present application will be described in the subsequent specification, and some advantages will become apparent from the specification or by implementing the present application. BRIEF DESCRIPTION OF DRAWINGS

[0035] The accompanying drawings are included to provide a further understanding of the embodiments, and are incorporated in and constitute a part of this specification, illustrate embodiments of the application, and together with the description serve to explain the principles of the application, and should not be considered limiting of the present application in scope, as numerous embodiments can be made without departing from the scope of the present application.

[0036] Figure 1 FIG. 1 is a schematic view of a heatable stand structure according to an embodiment of the present application;

[0037] Figure 2 FIG. 2 is a front view of the heatable stand according to the embodiment of the present application;

[0038] Figure 3 FIG. 3 is a sectional view of A-A of FIG. 2; Figure 2

[0039] ​Figure 4 This is a schematic diagram of the heatable grandstand structure according to Embodiment 2 of the present invention;

[0040] Figure 5 This is a top view of the heatable grandstand according to Embodiment 2 of the present invention;

[0041] Figure 6 for Figure 5 BB-direction sectional view;

[0042] Figure 7 This is a schematic diagram of the seat structure (with the first shielding part) according to Embodiment 2 of the present invention;

[0043] Figure 8 This is a front view of the seat structure according to Embodiment 2 of the present invention;

[0044] Figure 9 This is a schematic diagram of the elastic element structure in Embodiment 2 of the present invention;

[0045] Figure 10 This is a schematic diagram of the base structure (with a second shielding part) according to Embodiment 2 of the present invention;

[0046] Figure 11 This is a flowchart of the method for manufacturing a heatable grandstand according to the present invention.

[0047] Figure label:

[0048] 1-Base; 2-Seat; 3-Base plate; 4-Connecting part; 5-Heating part; 6-Heat storage material; 7-Solar cell; 8-First mounting hole; 9-Spring; 10-Ball bearing; 11-Second mounting hole; 12-Groove; 13-First shielding part; 14-Second shielding part; 15-Spring groove; 16-Event theme logo module; 17-Electronic information and infrared recognition system; 18-Lighting device; 19-Drainage channel. Detailed Implementation

[0049] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0050] Example 1

[0051] One specific embodiment of the present invention discloses a heatable grandstand, including a base 1 and seats 2, such as... Figure 1 As shown. The base 1 is placed below the seat 2 and is fixedly connected to the seat 2. The base 1 is used to support the seat 2 and is connected to the main structure of the grandstand.

[0052] The structure of the seat and base can be either integrally molded or set separately.

[0053] The seat 2 is provided with a heating part and a heat storage material, and the heating part is used to heat the heat storage material. The heating part is an electric resistance wire or an electric heating wire, and the electric resistance wire is connected with a solar cell. The solar cell is a solar photovoltaic panel arranged on the roof of the stadium.

[0054] In a possible embodiment, the base is provided with a competition theme logo module 16 on the side facing the competition field, as shown in the figure. Figure 2 The competition theme logo module 16 is detachably connected with the base. The detachable connection of the base facilitates replacement of different competition logos according to different competitions.

[0055] In another possible embodiment, the base is further provided with an electronic information and infrared identification system 17 on the side facing the competition field. The electronic information and infrared identification system includes a face recognition device, a competition broadcasting device, a body temperature monitoring device, a heating switch control device and an infrared identification device. The electronic information and infrared identification system is connected with the solar cell, and is used for identifying the seat number of the spectator, listening to the on-site broadcasting message, and turning on the seat heating system.

[0056] In order to facilitate the spectator to find his / her seat, the lighting device 18 is arranged on the side of the base, the side of the seat or the bottom of the seat in the embodiment, as shown in the figure. Figure 3 The lighting device is combined with projection technology or holographic projection technology, and is used for night lighting, barrier-free light information identification, competition promotion or competition information display.

[0057] In addition, it should be noted that the power supply mode of the lighting device is the same as that of the electronic system, and the solar cell is used for power supply.

[0058] The heatable stand of the embodiment adopts a modular design, and the modules are provided with standardized splicable interfaces. The stand modules are splicable and connectable through the interfaces, so as to form an integrated stand combination. The length of each seat is 1500mm*500mm, the thickness is 50mm, and the height of the base is 450-600mm.

[0059] In order to facilitate the spectators at different positions to clearly watch the competition, the base is arranged to be of different heights in a preferred embodiment. When the competition field is installed, the front row is provided with lower bases, and the rear row is provided with higher bases.

[0060] In order to enhance the rain and snow resistance, heat preservation and wear resistance of the surface of the seat, a nano material composite coating is coated on the surface of the seat in a possible embodiment, so that the seat has good corrosion resistance and heat resistance, and is more environmentally friendly.

[0061] Considering that the application environment of the heatable stand is outdoor and cold field with low temperature, on one hand, the stand needs to have strong cold resistance and corrosion resistance, and can effectively resist the erosion caused by freeze-thaw cycle; on the other hand, considering transportation and installation, the stand as a whole needs to be light and convenient for transportation and installation, and needs to have sufficient strength and wear resistance, so the stand also needs to have the performances of light weight, wear resistance and high strength.

[0062] The stand material of the embodiment is a fiber cement-based composite material, which is another innovation of the application, has the advantages of compactness, light weight, high strength, high toughness, good impact resistance and strong corrosion resistance, and is a material with excellent comprehensive performance, especially suitable for application in cold outdoor environment and convenient for disassembly and transportation. The specific preparation method of the fiber cement-based composite material will be described in detail in the following examples.

[0063] Example 2

[0064] The embodiment provides another heatable stand, which includes a base 1 and a seat 2, as shown in Figure 4 and Figure 5 . The seat 2 includes a bottom plate 3, a backrest (not shown in the figure) and a connecting part 4, the connecting part 4 is arranged on the lower surface of the bottom plate 3 and is used for connecting the bottom plate 3 and the base 1, as shown in Figure 6 . The base 1 is arranged below the seat 2 and is fixedly connected with the seat 2. The base 1 is used for supporting the seat 2 and is connected with the main structure of the stand.

[0065] The bottom plate 3 and the backrest both have a heating part 5 and a heat storage material 6 built-in, the heating part 5 is used for heating the heat storage material 6, as shown in Figure 7 . Exemplarily, the heating part is a resistance wire or an electric heating wire, and the heating part is connected with a solar cell 7. The solar cell is a solar photovoltaic panel arranged on the top of the stadium.

[0066] In order to facilitate the placement of the heating part 5 and the heat storage material 6 in the bottom plate 3 and the backrest, the bottom plate 3 and the backrest of the embodiment are integrally formed.

[0067] In a possible implementation, the connecting part 4 is a cylinder, a plurality of first mounting holes 8 are uniformly distributed along the outer surface of the cylinder at a certain height, as shown in Figure 7 and Figure 8 , and a through hole (not shown in the figure) is arranged along the axis direction of the cylinder, and a power line is arranged in the through hole, the power line is used for connecting the solar cell and the seat to heat the seat.

[0068] The first mounting hole 8 is internally provided with an elastic member, which comprises an elastic body and a rolling part. One end of the elastic body is connected with the bottom wall of the first mounting hole 8, and the other end is connected with the rolling part. Exemplarily, the elastic body is a spring 9, and the rolling part is a ball 10, as shown in Figure 9 .

[0069] According to the height of the connecting part 4, the first mounting hole 8 can be arranged in one row, or several rows at different heights along the cylinder. According to the diameter of the connecting part 4, the number of first mounting holes in each row can be 3, 6 or other numbers.

[0070] The base of the embodiment is provided with a second mounting hole 11, the opening of which faces upward, as shown in Figure 10 , the connecting part 4 of the seat 2 is placed in the second mounting hole 11 and can rotate in the second mounting hole 11. The bottom wall of the second mounting hole 11 is provided with a power line.

[0071] In order to fix the seat 2, a groove 12 is arranged on the hole wall of the second mounting hole 11, as shown in Figure 10 , the position and number of the groove 12 correspond to the first mounting hole 8. When the spectator needs to change the viewing angle, the seat 2 will be rotated, and when the first mounting hole 8 on the connecting part of the seat is rotated to the position of the groove 12, the ball 10 in the first mounting hole 8 is pushed out by the spring and clamped into the groove 12, thereby fixing the seat 2 and the base 1. When the spectator needs to change the viewing angle again, the seat can still be rotated, and the ball in the first mounting hole is clamped into the groove to fix the seat and the base.

[0072] In order to enhance the firmness of the spring 9 in the first mounting hole 8, the first mounting hole 8 of the embodiment is a stepped hole, that is, the hole diameter of the first mounting hole 8 is different. Specifically, the hole diameter of the first mounting hole 8 is large near one end of the groove 12 on the hole wall of the second mounting hole 11, and the hole diameter is small away from the other end of the groove 12 on the hole wall of the second mounting hole 11. A spring groove 15 is arranged on the hole wall with small hole diameter, as shown in Figure 7 , the lower part of the spring 9 is clamped into the spring groove 15.

[0073] The embodiment can not only realize the rotation of the seat, but also realize the fixation of the seat and the base through the cooperation of the structure of the seat and the base, thereby improving the viewing experience and comfort of the spectators.

[0074] It should be noted that one base 1 can be provided with one second mounting hole 11, or multiple second mounting holes 11, that is, one base 1 can be installed with one seat 2, or multiple seats 2, for example, three seats 2.

[0075] In order to prevent rain and snow from entering the stand to cause line failure, in a preferred embodiment, a first shielding part 13 is arranged on the lower surface of the bottom plate 3 and the outer side of the connecting part 4, as shown in Figure 7 and Figure 8 The first shielding part 13 extends towards the base 1. And a second shielding part 14 is arranged on the upper surface of the base 1 and the outer side of the second mounting hole 11, as shown in Figure 10 The second shielding part 14 extends towards the seat. The first shielding part 13 is located outside the second shielding part 14, and the height of the first shielding part 13 and the height of the second shielding part 14 are both less than the distance between the lower surface of the bottom plate and the upper surface of the base, so that the arrangement of the first shielding part 13 and the second shielding part 14 does not affect the cooperation between the seat 2 and the base 1.

[0076] It should be noted that the first shielding part 13 is arranged outside the second shielding part 14, which has the advantage of preventing rain and snow from flowing into the connecting part 4 from the side of the seat, and then flowing into the second mounting hole 11, which can effectively prevent the power line at the bottom wall of the second mounting hole 11 from causing line failure due to rain and snow.

[0077] In order to improve the shielding effect of rain and snow, the height of the first shielding part 13 and the height of the second shielding part 14 are both greater than half the distance between the lower surface of the bottom plate and the upper surface of the base, as shown in Figure 4 so that there is no gap in height between the first shielding part 13 and the second shielding part 14, which further effectively prevents rain and snow from entering the second mounting hole 11, thereby effectively avoiding line failure caused by water leakage.

[0078] In order to prevent water accumulation from flowing into the second mounting hole 11 on the base 1, in a preferred embodiment, a drainage groove 19 is arranged on the upper surface of the base 1, and the drainage groove 19 is arranged radially towards the edge of the base with the second mounting hole 11 as the center, as shown in Figure 10 And in order to facilitate the rapid drainage of rainwater through the drainage groove, the drainage groove has a certain inclination angle from the second mounting hole 11 to the edge of the base.

[0079] Alternatively, in order to facilitate drainage, no drainage groove is arranged, but the upper surface of the bottom plate 3 is arranged to have a certain inclination angle.

[0080] Example Three

[0081] This embodiment discloses a manufacturing method of a heatable stand, as shown in Figure 11 for manufacturing the heatable stand of example one or example two, comprising the following steps:

[0082] First, design the seat mold and the base mold, reserve and embed various mounting interfaces and pipeline threading, and integrate related modules in the factory.

[0083] Second, the preparation of fiber cement-based composite materials.

[0084] The raw materials of the fiber cement-based composite material include ordinary Portland cement, fly ash, silica fume, natural river sand, polypropylene fiber, tap water and polycarboxylate superplasticizer and other admixtures.

[0085] Fly ash and silica fume can improve the workability and compactness of the cement-based composite material, and the fiber is polypropylene fiber, which can effectively improve the strength and toughness of the material. Compared with other fibers, polypropylene fiber has better elastic modulus and breaking strength, is more economical, and is pollution-free and chemically stable.

[0086] In a specific embodiment, the water-cement ratio of the fiber cement-based composite material described above is 0.24. At a low water-cement ratio, the strength and durability of the material can be greatly improved.

[0087] The proportions of ordinary Portland cement, fly ash and silica fume in the cementitious material (which is a mixture of ordinary Portland cement, fly ash and silica fume) are 82%, 10% and 8% respectively, the sand ratio (which refers to the proportion of the mass of natural river sand to the sum of the mass of natural river sand and the mass of cementitious material) is 45%, and the dosage of superplasticizer is 0.5% of the mass of cement. The doping amount of polypropylene fiber is preferably controlled between 0.2% and 0.5% (here, 0.2% to 0.5% means that the doping amount of polypropylene fiber is 0.2% to 0.5% of the total volume of water, cementitious material, superplasticizer and natural river sand after mixing). Too large or too small dosage will have a negative effect on the performance of the material.

[0088] Through the compressive strength and flexural strength test, it is found that the fiber cement-based composite material with the above mixing ratio has a compressive strength of 90 MPa and a flexural strength of 14 MPa at 28 days of age, and about 10% of the strength increases at 56 days of age.

[0089] Through the water absorption rate and electric flux test, it is found that the fiber cement-based composite material with the above mixing ratio has a water absorption rate of only 1.2% and an electric flux of 240 C at 28 days, indicating that the material has high compactness and high durability. At 56 days of age, the hydration reaction inside the material is still ongoing, which further improves the compactness and durability of the material.

[0090] From the performance test results of the fiber cement-based material described above, it can be seen that the fiber cement-based material with the above mixing ratio has the following characteristics:

[0091] (1) Material strength is high, can effectively reduce the structure size, increase the use space.

[0092] (2) Material toughness is high, impact resistance is good, is suitable for being used in protection and reinforcement engineering.

[0093] (3) Material is dense and good, and corrosion resistance is strong, can be used in harsh environment.

[0094] Third, the preparation of heat storage material.

[0095] The heat storage material of the embodiment is prepared by the following method:

[0096] Step 1: dilute the emulsifier with anhydrous ethanol, add expanded graphite, control the water bath temperature to 60 DEG C, ultrasonic dispersion for 1.5-2.5h, form a uniform expanded graphite dispersion, dry at 100-120 DEG C to constant weight, obtain modified expanded graphite, the emulsifier is a nonionic surfactant;

[0097] Step 2: use a tablet machine to press the modified expanded graphite into a cylindrical block with a volume of 12.56m 3

[0098] Step 3: place the barium hydroxide octahydrate in a sealed container, control the temperature to 100-110 DEG C, heat the barium hydroxide octahydrate to a molten state, immerse the blocky expanded graphite obtained in step 2 in the molten barium hydroxide octahydrate for 1.5h;

[0099] Step 4: take out the blocky expanded graphite after absorbing the molten barium hydroxide octahydrate, cool in a nitrogen atmosphere at 35-45 DEG C, obtain a solid-solid phase change heat storage material.

[0100] The amount of each component in the above preparation method is 80-90 parts of barium hydroxide octahydrate, 10-20 parts of expanded graphite, and 3-4 parts of emulsifier by mass.

[0101] In the above preparation method, the emulsifier is a polypropylene glycol ethylene oxide adduct. The mass ratio of anhydrous ethanol to emulsifier is (1500-1800):1.

[0102] The solid-solid phase change heat storage material prepared by the above method has a phase change enthalpy of 260-280kJ / kg, a phase change temperature of 76-79 DEG C, a supercooling of less than 4 DEG C, a thermal conductivity of 2.5-4.5 W / (K·m), and no obvious change in material performance after 1500 heat absorption and release cycles.

[0103] The phase change heat storage material prepared by the application can improve the cycle stability of barium hydroxide octahydrate, reduce the supercooling degree, and ensure the high phase change enthalpy value of the phase change heat storage material.

[0104] ​The solid-solid phase change material prepared by the method does not soften after heating and does not have liquid leakage, thereby reducing the requirement for packaging. The expanded graphite has excellent heat conduction performance, and serves as a heat conduction path in the expanded graphite / barium hydroxide octahydrate, thereby improving the heat conduction performance of the phase change material.

[0105] The prepared heat storage material has a heat conduction coefficient of 4.5 W(K·m), which is 3.62 times of the prior art, and the heat conduction effect is significantly improved. Meanwhile, the phase change temperature of the material is basically stable after 1500 cycles, while the phase change temperature of the existing material is basically stable at most under the condition of 100 cycles, and the stability is not in the same level. The comprehensive performance of the material is very excellent.

[0106] The prepared inorganic composite phase change material has consistent melting point and good freezing point, and the phase change temperature is 76-79 DEG C, and can be widely applied to heating, waste heat utilization, building energy saving and electronic component heat dissipation and the like.

[0107] In addition, the material is prepared by using the relatively abundant barium hydroxide octahydrate as the main component, and the preparation cost is low.

[0108] The embodiment provides a more specific preparation method of the heat storage material, and includes the following steps.

[0109] (1) 1g of emulsifier polypropylene glycol ethylene oxide adduct is added into 1800g of anhydrous ethanol, and after being shaken uniformly, 4.2g of expanded graphite with a size of 100 mesh is added, the water bath temperature is controlled to be 60 DEG C, and ultrasonic is applied for 2h to obtain a uniform expanded graphite dispersion liquid. The anhydrous ethanol in the expanded graphite dispersion liquid is evaporated to constant weight at 110 DEG C to obtain hydrophilic expanded graphite.

[0110] (2) The hydrophilic expanded graphite obtained in step (1) is pressed into a cylinder with a volume of 1

[0111] (3) 23.8g of barium hydroxide octahydrate is weighed and placed in a sealed stainless steel container, and heated to a molten state at 105 DEG C. The cylinder-shaped expanded graphite obtained in step (2) is soaked in the molten barium hydroxide octahydrate for 1.5h under a sealed condition.

[0112] (4) The block-shaped expanded graphite after absorbing the molten barium hydroxide octahydrate is taken out and cooled in a nitrogen atmosphere at 40 DEG C to obtain a solid-solid phase change heat storage material. The phase change enthalpy, supercooling degree and cycle stability of the material are tested.

[0113] Fourthly, the seat is prepared by using the seat mold, and includes the following steps.

[0114] Step 1: First, a certain amount of fiber cement-based composite material is cast in the seat mold, and then cured. Specifically, autoclave curing can be used. The curing temperature is 100±5℃, and the pressure is 2MPa.

[0115] Step 2: The heating resistance wire and the heat storage material are fixedly placed in the seat mold cured with the fiber cement-based composite material, and then the fiber cement-based composite material is continuously cast and cured. The curing process can be the same as step 1.

[0116] Fifth, the base is made by using the base mold.

[0117] Example Four

[0118] The present embodiment provides a method for installing a heatable stand, comprising the following steps:

[0119] Step 1: The ball and the spring are fixedly connected. The connection between the ball and the spring can be, for example, welding. The end of the spring not connected to the ball is connected to the bottom wall of the first mounting hole on the seat connecting part, and the end connected to the ball faces outward. The connection between the spring and the bottom wall of the first mounting hole is also fixedly connected. For example, the spring is pasted on the bottom wall of the first mounting hole.

[0120] Step 2: The seats and the bases are transported to the competition site, and the bases are spliced and fixed.

[0121] After the seats and the bases are transported to the competition site, the bases are first spliced together, and then the bases are fixed to the stand body. When splicing the bases, pay attention to leaving a passage for spectators to enter and exit.

[0122] Step 3: First, place the connecting part of the seat in the second mounting hole of the base; second, check whether each ball can fall into the groove on the wall of the corresponding second mounting hole; then, check whether the seat can rotate and be fixed normally.

[0123] Step 4: Connect the lines and test whether the seat can be heated. If the seat cannot be heated normally, check the lines until the seat can be heated normally.

[0124] Step 5: Test whether other electronic systems can work normally.

[0125] Check whether the face recognition system, the event broadcasting system, the body temperature monitoring system, the heating switch control device, the infrared recognition device, etc. can work normally.

[0126] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A heatable bleachers characterized in that, The seat is provided with a heating part and heat storage material, and the heating part is connected with a power supply. The seat comprises a bottom plate, a backrest and a connecting part, the connecting part is arranged on the lower surface of the bottom plate and used for connecting the bottom plate and the base; The connecting part is a cylinder, a plurality of first mounting holes are arranged on the outer surface of the cylinder along a certain height of the cylinder, a through hole is arranged along the axis of the cylinder, a power line is arranged in the through hole, and the power line is used for connecting the solar cell and the seat to heat the seat; The first mounting hole is provided with an elastic member, the elastic member comprises an elastic body and a rolling part, one end of the elastic body is connected with the bottom wall of the first mounting hole, and the other end is connected with the rolling part; The base is provided with a second mounting hole, the opening of the second mounting hole faces upward, the connecting part of the seat is arranged in the second mounting hole and can rotate in the second mounting hole, and the bottom wall of the second mounting hole is provided with a power line; A groove is arranged on the hole wall of the second mounting hole, the position and number of the groove correspond to the first mounting hole, when the spectator needs to change the viewing angle, the seat is rotated, when the first mounting hole on the connecting part of the seat is rotated to the position of the groove, the rolling part in the first mounting hole is pushed out by the elastic body and clamped into the groove, so that the fixation of the seat and the base is realized, when the spectator needs to change the viewing angle again, the seat can still be rotated, and the rolling part in the first mounting hole is clamped into the groove to realize the fixation of the seat and the base; An annular first shielding part is arranged on the lower surface of the bottom plate and the outer side of the connecting part, and the first shielding part extends toward the base; Furthermore, an annular second shielding part is arranged on the upper surface of the base and the outer side of the second mounting hole, and the second shielding part extends toward the seat; the first shielding part is located outside the second shielding part, the height of the first shielding part and the height of the second shielding part are both smaller than the distance between the lower surface of the bottom plate and the upper surface of the base, so that the arrangement of the first shielding part and the second shielding part does not affect the cooperation of the seat and the base; The height of the first shielding part and the height of the second shielding part are both greater than half of the distance between the lower surface of the bottom plate and the upper surface of the base; The side of the base facing the competition site is provided with a competition theme logo module; The side of the base facing the competition site is also provided with an electronic information and infrared identification system; The electronic information and infrared identification system comprises a face recognition device, a competition broadcast device, a body temperature monitoring device, a heating switch control device and an infrared identification device; The side of the base, the side of the seat or the bottom surface of the seat is provided with a lighting device; The power supply is a solar cell; The power supply of the electronic information and infrared identification system is a solar cell; The competition theme logo module is detachably connected with the base. The method for manufacturing the heatable stand of claim 1 comprises the following steps: ​ 2. A method of manufacturing a heatable bleacher, characterized by ​ designing and making a seat mould and a base mould; preparing a fibre cement-based composite material; making a seat using the seat mould; making a base using the base mould.

3. A method of installing a heatable bleachers, characterized by, A method for installing the heated stand of claim 1, comprising the steps of: transporting the seats and bases to the venue, assembling and securing the bases; placing the seats on the bases; connecting the wiring and testing the seats for heating; testing the electronic system for proper operation.

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