CN112356713B - Fireproof and waterproof charging pile - Google Patents

Abstract

The invention relates to the technical field of charging piles, in particular to a fireproof and waterproof charging pile, comprising a charging pile body; a cylinder seat is arranged below the charging pile body, and an annular groove is also arranged on the cylinder base; the charging pile body It is installed in the annular groove of the cylinder seat through its bottom end; because there is a non-dense gap between the contact surface of the charging pile and the cylinder base, the charging pile will infiltrate its interior when it is submerged in water, and then destroy it. Therefore, the present invention replaces the bottom end of the charging pile body and installs it on the ground protected by the foundation, and uses the annular groove and the protective shell in the cylinder base to increase the contact area with the charging pile body and the ground. , reducing the permeability in the state of immersion, and using the groove in the annular groove, so that the melted rubber pad in the state of fire stays in it, maintaining the sealing performance in the charging pile body, thus providing fire protection for the charging pile. Ability to soak in water.

Description

A fireproof and waterproof charging pile

technical field

The invention relates to the technical field of charging piles, in particular to a fireproof and waterproof charging pile.

Background technique

Under the pressure of energy and environmental protection, new energy vehicles will undoubtedly become the development direction of future vehicles. Compared with gas stations for ordinary fuel vehicles, the popularity of charging piles also affects the charging of new energy vehicles. The functions of charging piles are similar. The refueling machine in the gas station can be fixed on the ground or wall, installed in the parking lot or charging station of public buildings and residential quarters, and can charge various types of electric vehicles according to different voltage levels.

The electrical system inside the charging pile needs to be kept in a dry operating environment. At present, during the construction of the charging facility, basic protection will be carried out at the bottom of the charging facility, so that the 20-30cm below the charging pile body has the ability to prevent water inundation. Before charging starts, the vehicle end and the pile end must be tested for insulation, otherwise the charging cannot be started, and the waterproof rating of the charging pile is IP56, which cannot meet the performance requirements of anti-water immersion, which limits the applicable environment of the charging pile. The electrical system is vulnerable to damage and loss in a fire situation.

There are also some technical solutions about charging piles in the prior art. For example, a Chinese patent with an application number of 2019206664752 discloses a waterproof immersion base structure for an electric vehicle charging pile cabinet, including a rain ring, a base, a connecting cylinder and a wind cylinder. One end of the base is fixed with a control panel, and a single-chip microcomputer is installed inside the control panel, a base plate is arranged below the base, and mounting feet are installed at the four corners of the bottom end of the base plate, and two sides of the top of the base plate are installed A water level sensor is installed in all of them, and a drive rod is arranged laterally above the bottom plate; the technical solution is that a cooling fin is laterally fixed at the top inside the connecting cylinder, and at the same time, both sides of the connecting cylinder are connected with air ducts, and the air duct A cooling fan is installed on one side of the interior, and the heat dissipation fins improve the heat conduction rate. At the same time, the heat at the bottom of the cabinet is blown away by the cooling fan to achieve the purpose of auxiliary heat dissipation; however, this technical solution does not solve the problem of the charging pile in fire and water immersion. In this state, the rubber material that acts as a seal between the charging pile and the base fails to function at high temperatures, which limits the environmental applicability of the charging pile.

In view of this, in order to overcome the above technical problems, the present invention proposes a fireproof and waterproof charging pile, which adopts a special charging pile body structure to solve the above technical problems.

SUMMARY OF THE INVENTION

In order to make up for the deficiencies of the prior art, the present invention proposes a fireproof and waterproof charging pile. The bottom end of the charging pile body is replaced by a cylinder seat and is installed on the ground protected by the foundation. The shell increases the contact area with the charging pile body and the ground, reduces the permeability under water immersion, and uses the grooves in the annular groove to keep the melted rubber pads in the fire state and maintain the charging pile. The sealing performance in the body, thus providing the charging pile with the ability to prevent fire and water immersion.

A fireproof and waterproof charging pile according to the present invention includes a charging pile body; a cylinder seat is arranged under the charging pile body, and the cylinder base matches the shape of the bottom end face of the charging pile body; An annular groove is provided, and the annular groove is distributed on the inner wall side of the top end of the cylinder seat; the inner wall of the cylinder seat is also provided with a convex ring, the convex ring is located at the bottom of the annular groove, and the convex ring increases the bottom area of the annular groove; the annular groove There is also a groove on the bottom surface of the groove, the width of the groove is the same as the wall thickness of the bottom end of the charging pile, and a rubber pad for sealing is laid on the bottom surface of the groove; the bottom inner wall of the cylinder seat is also provided with a convex There is also a shell plate under the flange; the shell plate is installed on the bottom end face of the cylinder seat, the middle of the shell plate is left with an opening for wiring to pass through, and the circumference of the shell plate is in contact with the inner wall of the cylinder seat The flange is also provided with crossed transverse columns, and the transverse columns are provided with fixing holes; the bottom surface of the shell plate is also provided with bolts for positioning, and the shell plate is installed on the fixing holes through bolts; The seat is installed on the ground plane through the shell plate; the charging pile body is installed in the annular groove of the cylinder seat through its bottom end; when working, the electrical system inside the charging pile needs to ensure that it is in a dry operating environment. During the construction of the charging facility, basic protection will be carried out at the bottom of the charging pile, so that the bottom of the charging pile has the ability to prevent water inundation. , which will make the bottom of the charging pile in a state of immersion. Since the bottom end of the charging pile and its foundation protection belong to different materials of metal and concrete, there will be uncompact gaps between their contact surfaces, making the charging pile in the The submerged state will cause its internal infiltration, and then destroy the charging pile; therefore, the present invention installs the bottom end of the charging pile body in the annular groove of the cylinder base by arranging the cylinder base under the charging pile body, thereby increasing the number of the cylinder base and the cylinder base. The contact area between the charging piles, and the rubber pad on the bottom surface of the groove is squeezed by the weight of the charging pile to maintain the sealing effect between the contact surfaces. The fixing hole on the cross column is connected with the protective shell below it, so that the cylinder seat is installed on the shell plate in a state of tensile stress under the action of the bolt, and the contact area between the cylinder seat and the foundation protection is increased through the shell plate. And when the charging pile body is in a fire condition, the sealed rubber pad will melt and stagnate in the groove on the bottom surface of the annular groove after being heated; the invention utilizes the provided cylinder seat to replace the bottom end of the charging pile body and is installed to the base protection. On the ground, the annular groove and protective shell in the cylinder seat are used to increase the contact area between the charging pile and the ground, reducing the permeability under water immersion. The melted rubber pad stays in it to maintain the sealing performance in the charging pile body, thereby providing the charging pile with the ability to prevent fire and water immersion.

Preferably, the bottom surface of the groove is arc-shaped; the bottom surface of the charging pile body is provided with a rounded corner corresponding to the arc-shaped bottom surface of the groove, and the charging pile body presses the rubber pad on the groove arc through the rounded corners at the bottom of the charging pile body The convex ring is also provided with a surrounding cavity, and the cavity runs through the side of the arc surface of the groove; during operation, there is a gap for installation allowance between the charging pile body and the annular groove of the cylinder seat , the water tightness between the contact surfaces will be weakened, and the rubber pad in the fire state will be squeezed out of the groove under the gravity of the charging pile after the thermal melting, so that the bottom end of the charging pile is connected to the cylinder. There is direct contact between the seats, which affects the air tightness of the charging pile; by setting the bottom surface of the groove as an arc, and matching with the rounded corners set on the bottom end surface of the charging pile body, the gap of the installation margin is changed. In the depth direction between the arc-shaped contact surfaces, the water-tightness of the rubber pad between them under the pressure of the charging pile is ensured, and the cavity through the groove is used to make the rubber pad heated and melted under the fire flow into the convex ring. Stored in the cavity, and the hot-melt-expanded rubber pad will form a liquid layer at the bottom of the groove to enhance the air tightness between the bottom end of the charging pile and the groove, thereby maintaining the fireproof and waterproof performance of the charging pile.

Preferably, a rubber ring is also laid in the cavity, and the rubber ring fills the interior of the cavity; a metal spacer is also provided on the top of the rubber ring, and the spacer is slidably installed on the side wall of the cavity; After the fire in which the charging pile is located is extinguished, the charging pile body and its components will return to the level of ambient temperature, and the hot-melt rubber pad material will gradually cool and form in the cavity of the convex ring during the cooling process, while the The sealing effect between the bottom end of the charging pile and the groove is lost; the rubber ring in the cavity is matched with the spacer on the top, so that the rubber ring in the cavity is heated and melted under the condition of fire. It shrinks so that the spacer at the top is lowered from the cavity, so that the rubber pad melted into liquid in the groove flows into the space above the spacer in the cavity, and recovers from the liquid state during the cooling process after the fire is extinguished The solid rubber ring material will cause the spacer to rise from the cavity, squeeze the hot-melt inflowing rubber pad material back into the groove, and flow out along the port of the groove to the groove under the gravity of the charging pile. On the bottom surface of the annular groove, the molten liquid rubber pad material is re-solidified and formed between the annular groove and the bottom end side wall of the charging pile to maintain the water tightness between the charging pile and the cylinder seat, thereby restoring the fireproof and waterproof charging pile. Sealing performance after fire.

Preferably, the end of the spacer facing the groove is provided with an arc-shaped flanging, and the flanging faces the top direction of the cavity; the top of the flanging is provided with a fixed column, and the flanging is also provided with a Intermittent opening; when the spacer is raised to the top position of the cavity, the flange of the spacer protrudes from the cavity and makes the column fit between the contact surface of the charging pile body and the groove; During the process of re-cooling and solidification of the melted rubber pad material, it will be extruded to the bottom surface of the annular groove under the gravity of the charging pile, weakening the solidified rubber pad material on the bottom side wall of the charging pile and the cylinder. The sealing performance between the seats; through the flanging set on the spacer, during the lifting process of the spacer from the solidification and expansion of the rubber ring material in the cavity, the flanging is made along the through opening of the cavity on the arc surface of the groove Extend and push the column at the top of the flange against the contact surface of the charging pile body and the groove, so that the extruded liquid rubber pad material flows back into the groove through the opening of the flange and reaches the contact surface of the column. In the case of the charging pile body and the top of the groove, the liquid rubber pad material flowing out from the top of the spacer flows to the bottom of the groove, so as to prevent it from being extruded to the bottom surface of the annular groove under the pressure of the charging pile body, restoring the glue. The groove position of the pad material before melting maintains the sealing performance of the rubber pad between the cylinder seat and the charging pile, thereby maintaining the operation effect of the fireproof and waterproof charging pile.

Preferably, intermittent longitudinal cavity grooves are also set on the rounded corners of the bottom of the charging pile body, and annular cavity grooves surrounding the bottom end of the electric pile body are also set on the rounded corners; the longitudinal cavity grooves are distributed on the arc of the rounded corners. On the shape surface, the end of the longitudinal cavity groove is communicated with the opening of the cavity in the groove, and the middle part of the longitudinal cavity groove is communicated with the annular cavity groove; when the molten liquid rubber pad material returns to the groove and the charging pile body In the process of filling the gap, because the through hole of the cavity is located on the side of the groove, the force of the liquid rubber pad material to be extruded to the bottom of the charging pile is in an inclined direction, which weakens the effect of lifting the charging pile and affects the The liquid rubber pad material is restored to the space between the groove and the charging pile body; the longitudinal cavity groove and the annular cavity groove arranged on the rounded corners of the bottom of the charging pile body guide the flow direction of the liquid rubber pad material extruded in the cavity to make it It is evenly distributed in the fillet position of the charging pile body, so that the lifting force of the liquid rubber pad material on the charging pile body is in the vertical direction, so as to ensure that the liquid rubber pad material returns to the position between the charging pile body and the contact surface of the groove state, thus stabilizing the operation effect of the fireproof and waterproof charging pile.

Preferably, the side wall of the charging pile is a evacuated plate and shell structure, and the electrical system inside the charging pile is fixed on the basis of the cross columns in the cylinder seat; the charging pile is re-topped by the liquid rubber pad material. In the process of starting up, the rubber ring material expanded in the cavity has limited lifting force on the charging pile, which will affect the effect of the liquid rubber pad material returning to the position between the charging pile and the groove; The shell plate, in conjunction with the installation foundation of the electrical system, reduces the weight, so that the liquid rubber pad material can lift it at the bottom end of the charging pile, maintain the sealing performance of the rubber pad material between the cylinder seat and the charging pile, and at the same time vacuum The shell plate enhances the thermal insulation of the internal components of the charging pile, thereby improving the operation effect of the fireproof and waterproof charging pile.

The beneficial effects of the present invention are as follows:

1. In the present invention, the bottom end of the charging pile is replaced by the provided cylinder seat and installed on the ground protected by the foundation, and the annular groove and protective shell in the cylinder base are used to increase the contact area between the charging pile and the ground, and reduce the cost of the charging pile. The permeability of the water immersion state, and the use of the groove in the annular groove, so that the melted rubber pad in the fire state is retained in it, and the sealing performance in the charging pile is maintained.

2. The present invention uses the rubber ring arranged in the cavity to cooperate with the spacer on the top of the spacer. During the cooling process after the fire is extinguished, the rubber ring material recovered from liquid state to solid state will cause the spacer to rise from the cavity. , squeeze the hot-melted rubber pad material back into the groove, flow out along the port of the groove, and re-solidify and form between the annular groove and the bottom side wall of the charging pile to maintain the gap between the charging pile and the cylinder seat. water tightness.

Description of drawings

The present invention will be further described below with reference to the accompanying drawings and embodiments.

1 is a perspective view of a fireproof and waterproof charging pile in the present invention;

Fig. 2 is an exploded view of the fireproof and waterproof charging pile components in the present invention;

Fig. 3 is the sectional view of the cylinder seat part in the present invention;

Fig. 4 is the partial enlarged view of A place in Fig. 2;

Fig. 5 is the partial enlarged view of B place in Fig. 2;

Fig. 6 is the partial enlarged view of C place in Fig. 3;

In the figure: charging pile 1, fillet 11, longitudinal cavity groove 12, annular cavity groove 13, cylinder seat 2, annular groove 21, convex ring 22, cavity 23, rubber ring 231, spacer 24, flange 25, Column 26 , through port 27 , groove 3 , rubber pad 31 , flange 4 , horizontal column 41 , fixing hole 42 , shell plate 5 , bolt 51 .

Detailed ways

In order to make it easy to understand the technical means, creation features, achieved goals and effects of the present invention, the present invention will be further described below with reference to the specific embodiments.

As shown in FIG. 1 to FIG. 6 , a fireproof and waterproof charging pile according to the present invention includes a charging pile body 1; a cylinder seat 2 is arranged under the charging pile body 1, and the cylinder base 2 and the charging pile body are provided. The shape of the bottom end face of 1 matches; the cylinder seat 2 is also provided with an annular groove 21, and the annular groove 21 is distributed on the inner wall side of the top end of the cylinder seat 2; The ring 22 is located at the bottom of the annular groove 21. The convex ring 22 increases the bottom area of the annular groove 21; The thickness is the same, and the bottom surface of the groove 3 is covered with a rubber pad 31 for sealing; the bottom inner wall of the cylinder seat 2 is also provided with a flange 4, and a shell plate 5 is also provided below the flange 4; the shell plate 5 is installed on the bottom end face of the cylinder seat 2, the middle of the shell plate 5 is left with an opening for wiring to pass through, and the circumferential direction of the shell plate 5 is in contact with the inner wall of the cylinder seat 2; the flange 4 is also provided with a cross. The transverse column 41 is provided with a fixing hole 42 on the transverse column 41; the bottom surface of the shell plate 5 is also provided with a bolt 51 for positioning, and the shell plate 5 is installed on the fixing hole 42 through the bolt 51; the cylinder seat 2 It is installed on the ground plane through the shell plate 5; the charging pile body 1 is installed in the annular groove 21 of the cylinder base 2 through its bottom end; when working, the electrical system inside the charging pile needs to ensure that it is in a dry operating environment During the construction of the charging facility, basic protection will be carried out at the bottom of the charging pile, so that the bottom of the charging pile has the ability to prevent water inundation. After the foundation protection, the bottom of the charging pile body 1 will be in a state of immersion. Since the bottom end of the charging pile body 1 and its foundation protection belong to different materials of metal and concrete, there will be gaps between their contact surfaces. So that the charging pile body 1 will infiltrate its interior in a state of immersion, and then destroy the charging pile; therefore, the present invention installs the bottom end of the charging pile body 1 on the cylinder base 2 by setting the cylinder base 2 under the charging pile body 1 In the annular groove 21, the contact area between the cylinder seat 2 and the charging pile body 1 is increased, and the rubber pad 31 on the bottom surface of the groove 21 is squeezed by the weight of the charging pile body 1 to maintain the sealing effect between the contact surfaces. At the same time, the flange 4 and the transverse column 41 provided on the bottom end of the cylinder seat 2 are connected with the shell plate 5 below through the fixing hole 42 on the transverse column 41, so that the cylinder seat 2 is under the action of the bolt 51 with tensile stress It is installed on the shell plate 5 in the same state, and the contact area between the cylinder seat 2 and the foundation protection is increased through the shell plate 5, and when the charging pile 1 is in a fire state, the sealed rubber pad 31 is heated and stagnant in melting In the groove 3 on the bottom surface of the annular groove 21; the present invention utilizes the provided cylinder seat 2 to replace the bottom end of the charging pile 1 and is installed on the ground protected by the foundation, and utilizes the annular groove 21 and the protective shell in the cylinder seat 2 to increase the The contact area between the charging pile body 1 and the ground is reduced, the permeability in the submerged state is reduced, and the groove 3 in the annular groove 21 is used to make the rubber pad 31 melted in the fire state to stay in it and maintain the charging state. Sealing properties in pile 1, thus charging The pile provides fire and water resistance.

As an embodiment of the present invention, the bottom surface of the groove 3 is arc-shaped; the bottom surface of the charging pile body 1 is provided with a fillet 11 corresponding to the arc-shaped bottom surface of the groove 3, and the charging pile body 1 passes through its bottom The rounded corners 11 press the rubber pad 31 in the arc-shaped surface of the groove 3; the convex ring 22 is also provided with a surrounding cavity 23, and the cavity 23 runs through the side of the arc-shaped surface of the groove 3; when working , there is a gap for installation allowance between the charging pile body 1 and the annular groove 21 of the cylinder base 2, which will weaken the water tightness between their contact surfaces, and the rubber pad 31 in the fire state is hot and melted. Under the action of gravity, the body 1 will be squeezed out of the groove 3, causing direct contact between the bottom end of the charging pile body 1 and the cylinder base 2, which affects the air tightness of the charging pile; It is arc-shaped, and cooperates with the rounded corners 11 set on the bottom end surface of the charging pile body 1 to convert the gap of its installation margin into the depth direction between the arc-shaped contact surfaces to ensure that the rubber pad 31 is in the charging pile body 1. Water tightness under pressure, and using the cavity 23 running through the groove 3, the rubber pad 31 heated and melted under fire flows into the cavity 23 of the convex ring 22 for storage, and the thermally melted and expanded rubber pad 31 A liquid layer will be formed at the bottom of the groove 3 to enhance the air tightness between the bottom end of the charging pile body 1 and the groove 3, thereby maintaining the fireproof and waterproof performance of the charging pile.

As an embodiment of the present invention, a rubber ring 231 is also laid in the cavity 23, and the rubber ring 231 is filled inside the cavity 23; the top of the rubber ring 231 is also provided with a metal spacer 24, The spacer 24 is slidably installed on the side wall of the cavity 23; after the fire situation in which the charging pile is located is extinguished, the charging pile body 1 and its components will return to the level of the ambient temperature, and the material of the hot-melted rubber pad 31 will be During the cooling process, it will be gradually cooled and shaped in the cavity 23 of the convex ring 22, and the sealing effect between the bottom end of the charging pile 1 and the groove 3 will be lost; The spacer 24 on the top makes the rubber ring 231 in the cavity 23 melt and shrink when the charging pile is in a fire condition, so that the spacer 24 on the top is lowered from the cavity 23, so that the groove 3 melts into a liquid state The rubber pad 31 flows into the space above the spacer 24 in the cavity 23, and during the cooling process after the fire is extinguished, the material of the rubber ring 231 that is restored from liquid to solid will cause the spacer 24 to rise from the cavity 23. , squeeze the material of the rubber pad 31 into the groove 3, and flow out to the bottom surface of the annular groove 21 along the port of the groove 3 under the gravity of the charging pile 1, where the annular groove 21 and the The molten liquid rubber pad 31 is re-solidified and formed between the bottom and side walls of the charging pile body 1 to maintain the water tightness between the charging pile body 1 and the cylinder base 2, thereby restoring the sealing of the fireproof and waterproof charging pile after the fire. performance.

As an embodiment of the present invention, the end of the spacer 24 facing the groove 3 is provided with an arc-shaped flange 25 , and the flange 25 faces the top direction of the cavity 23 ; the top of the flange 25 is provided with There is a fixed column 26, and the flange 25 is also provided with intermittent openings 27; when the spacer 24 is raised to the top position of the cavity 23, the flange 25 of the spacer 24 protrudes from the cavity 23 And make the column 26 fit between the contact surface of the charging pile 1 and the groove 3; in the process of re-cooling and solidifying the material of the hot-melted rubber pad 31, it will be extruded under the gravity of the charging pile 1. The bottom surface of the annular groove 21 weakens the sealing performance of the solidified rubber pad 31 material between the bottom end side wall of the charging pile 1 and the cylinder seat 2; 24 During the jacking up process of the solidification and expansion of the rubber ring 231 in the cavity 23, the flange 25 is extended along the through hole 27 of the cavity 23 on the arc surface of the groove 3, and the top end of the flange 25 is extended. The column 26 abuts on the contact surface of the charging pile 1 and the groove 3, so that the extruded liquid rubber pad 31 material flows back into the groove 3 through the opening 27 of the flange 25, and the column 26 touches the groove 3. In the case of the charging pile 1 and the top of the groove 3, the liquid rubber pad 31 material flowing out from the top of the spacer 24 flows to the bottom of the groove 3 to prevent it from being extruded to the annular groove 21 under the pressure of the charging pile 1. On the bottom surface of the battery, restore the position of the groove 3 where the material of the rubber pad 31 was before melting, and maintain the sealing performance of the rubber pad 31 between the cylinder base 2 and the charging pile body 1, thereby maintaining the operation effect of the fireproof and waterproof charging pile.

As an embodiment of the present invention, the rounded corners 11 at the bottom of the charging pile body 1 are further provided with intermittent longitudinal cavity grooves 12, and the rounded corners 11 are also provided with annular cavity grooves 13 surrounding the bottom end of the electric pile body; The longitudinal cavity grooves 12 are distributed on the arc surface of the rounded corners 11 , the end of the longitudinal cavity groove 12 is communicated with the through hole 27 of the cavity 23 in the groove 3 , and the middle of the longitudinal cavity groove 12 is connected with the annular cavity groove. 13 is connected; when the molten liquid rubber pad 31 material is restored to the gap between the groove 3 and the charging pile 1, since the through hole 27 of the cavity 23 is located on the side of the groove 3, the liquid rubber pad 31 material is The force extruded to the bottom of the charging pile 1 is in an inclined direction, which weakens the effect of lifting the charging pile 1 and affects the recovery of the material of the liquid rubber pad 31 to the space between the groove 3 and the charging pile 1; The longitudinal cavity groove 12 and the annular cavity groove 13 on the fillet 11 at the bottom of the charging pile 1 guide the flow direction of the material extruded from the liquid rubber pad 31 in the cavity 23 so that it is evenly distributed in the fillet 11 of the charging pile 1 , and then make the lifting force of the liquid rubber pad 31 material on the charging pile body 1 in the vertical direction to ensure that the liquid rubber pad 31 material is restored to the position between the charging pile body 1 and the contact surface of the groove 3, thereby stabilizing the fire prevention. Operation effect of waterproof immersion charging pile.

As an embodiment of the present invention, the side wall of the charging pile body 1 is a evacuated plate shell structure, and the electrical system inside the charging pile body 1 is fixed on the basis of the cross columns 41 in the cylinder base 2; During the process that the charging pile body 1 is re-lifted by the liquid rubber pad 31 material, the expanding force of the rubber ring 231 in the cavity 23 to the charging pile body 1 is limited, which will affect the recovery of the liquid rubber pad 31 material to the charging pile body. The position effect between 1 and groove 3; by using the shell plate 5 of the evacuated charging pile 1, and the installation foundation of the electrical system in it, the weight is reduced, so that the liquid rubber pad 31 material can be deposited at the bottom of the charging pile 1. It is jacked up to maintain the sealing performance of the rubber pad 31 material between the cylinder base 2 and the charging pile 1, while the vacuum shell 5 enhances the thermal insulation of the internal components of the charging pile 1, thereby improving the fireproof and waterproof charging pile. operation effect.

During operation, the bottom end of the charging pile 1 is installed in the annular groove 21 of the cylinder base 2 by arranging the cylinder base 2 under the charging pile 1, thereby increasing the contact area between the cylinder base 2 and the charging pile 1, and The rubber pad 31 on the bottom surface of the groove 21 is squeezed by the weight of the charging pile body 1 to maintain the sealing effect between the contact surfaces. The fixing hole 42 on the 41 is connected with the protective shell below it, so that the cylinder seat 2 is installed on the shell plate 5 in a state of tensile stress under the action of the bolt 51. When the charging pile body 1 is in a fire state, the sealed rubber pad 31 melts and stagnates in the groove 3 on the bottom surface of the annular groove 21 after being heated; the bottom surface of the groove 3 is set to be arc-shaped, and Cooperate with the rounded corners 11 set on the bottom end face of the charging pile body 1, and convert the gap of its installation margin into the depth direction between the arc-shaped contact surfaces, so as to ensure the watertightness of the rubber pad 31 under the pressure of the charging pile body 1. and use the cavity 23 running through the groove 3 to make the rubber pad 31 heated and melted under fire flow into the cavity 23 of the convex ring 22 for storage, and the thermally expanded rubber pad 31 will be in the groove 3 A liquid layer is formed at the bottom of the charging pile body 1 to enhance the air tightness between the bottom end of the charging pile body 1 and the groove 3; the rubber ring 231 arranged in the cavity 23 cooperates with the spacer 24 on the top thereof, so that the charging pile can be kept under fire conditions. , the rubber ring 231 in the cavity 23 is heated and melted and shrinks, so that the spacer 24 at the top is lowered from the cavity 23, so that the rubber pad 31 melted into liquid in the groove 3 flows into the cavity 23 above the spacer 24 In the space, and during the cooling process after the fire is extinguished, the material of the rubber ring 231 recovered from the liquid state to the solid state will cause the separator 24 to rise from the cavity 23, and the material of the rubber pad 31 that has been melted into the heat will be squeezed back to the concave. Under the gravity of the charging pile 1, it flows out to the bottom surface of the annular groove 21 along the port of the groove 3, and the molten liquid is melted between the annular groove 21 and the bottom side wall of the charging pile 1. The material of the rubber pad 31 is re-solidified and formed to maintain the water tightness between the charging pile 1 and the cylinder base 2; During the lifting process, make the flange 25 protrude along the through opening 27 of the cavity 23 on the arc surface of the groove 3, and push the column 26 at the top of the flange 25 against the charging pile 1 and the groove 3. On the contact surface, the extruded liquid rubber pad 31 material flows back into the groove 3 through the opening 27 of the flange 25, and when the column 26 touches the charging pile 1 and the top of the groove 3, the The liquid rubber pad 31 material flowing out from the top of the spacer 24 flows to the bottom of the groove 3 to prevent it from being extruded to the bottom surface of the annular groove 21 under the pressure of the charging pile 1, and restore the position of the rubber pad 31 material before melting. The groove 3 position of the charging pile body 1 maintains the sealing performance of the rubber pad 31 between the cylinder base 2 and the charging pile body 1; The flow direction of the liquid rubber pad 31 material is extruded in the middle, so that it is evenly distributed on the charging pile In the position of the fillet 11 of the body 1, then the lifting force of the liquid rubber pad 31 material on the charging pile body 1 is in the vertical direction, so as to ensure that the liquid rubber pad 31 material is restored to the contact surface between the charging pile body 1 and the groove 3. Use the shell plate 5 of the charging pile body 1 to be evacuated, and reduce the weight with the installation foundation of the electrical system, so that the liquid rubber pad 31 material can lift it up at the bottom end of the charging pile body 1 to maintain the rubber pad. 31 The sealing performance of the material between the cylinder base 2 and the charging pile body 1, and the vacuum shell plate 5 enhances the thermal insulation of the internal components of the charging pile body 1.

The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments, and the descriptions in the above-mentioned embodiments and the description are only to illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have Various changes and modifications fall within the scope of the claimed invention. The claimed scope of the present invention is defined by the appended claims and their equivalents.

Claims (4)

1. The utility model provides a stake of charging of fire prevention waterproof immersion, includes the pile body of charging (1), its characterized in that: a cylinder seat (2) is arranged below the charging pile body (1), and the shape of the cylinder seat (2) is matched with that of the bottom end face of the charging pile body (1); the cylinder seat (2) is also provided with annular grooves (21), and the annular grooves (21) are distributed on the inner wall side of the top end of the cylinder seat (2); the inner wall of the cylinder seat (2) is also provided with a convex ring (22), the convex ring (22) is positioned at the bottom of the annular groove (21), and the convex ring (22) increases the area of the bottom of the annular groove (21); a groove (3) is further formed in the bottom surface of the annular groove (21), the width of the groove (3) is the same as the wall thickness of the bottom end of the charging pile body (1), and a rubber pad (31) for sealing is laid on the bottom surface of the groove (3); a flange (4) is further arranged on the inner wall of the bottom of the cylinder seat (2), and a shell plate (5) is further arranged below the flange (4); the shell plate (5) is arranged on the bottom end face of the barrel seat (2), an opening for passing a wiring is reserved in the middle of the shell plate (5), and the circumferential direction of the shell plate (5) is attached to the inner wall of the barrel seat (2); the flange (4) is also provided with crossed cross posts (41), and the cross posts (41) are provided with fixing holes (42); the bottom surface of the shell plate (5) is also provided with a bolt (51) for positioning, and the shell plate (5) is arranged on the fixing hole (42) through the bolt (51); the cylinder seat (2) is arranged on a foundation plane through a shell plate (5); the charging pile body (1) is clamped and installed in an annular groove (21) of the cylinder seat (2) through the bottom end of the charging pile body;

the bottom surface of the groove (3) is arc-shaped; the bottom surface of the charging pile body (1) is provided with a fillet (11) corresponding to the arc-shaped bottom surface of the groove (3), and the rubber mat (31) is pressed in the arc-shaped surface of the groove (3) by the charging pile body (1) through the fillet (11) at the bottom of the charging pile body; a surrounding cavity (23) is also arranged in the convex ring (22), and the cavity (23) penetrates through the side part of the arc-shaped surface of the groove (3);

a rubber ring (231) is further laid in the cavity (23), and the rubber ring (231) is filled in the cavity (23); and a metal spacer (24) is also arranged on the top of the rubber ring (231), and the spacer (24) is slidably arranged on the side wall of the cavity (23).

2. The waterproof and waterproof charging pile according to claim 1, characterized in that: the end part of the spacer (24) facing the groove (3) is provided with an arc-shaped flanging (25), and the flanging (25) faces the top direction of the cavity (23); the top end of the flanging (25) is provided with a fixed column bar (26), and the flanging (25) is also provided with intermittent through holes (27); when the spacer (24) is lifted to the top position of the cavity (23), the flanging (25) of the spacer (24) extends out of the cavity (23) and enables the column bar (26) to be attached between the contact surfaces of the charging pile body (1) and the groove (3).

3. The waterproof and waterproof charging pile according to claim 2, characterized in that: the round angle (11) at the bottom of the charging pile body (1) is also provided with intermittent longitudinal cavity grooves (12), and the round angle (11) is also provided with an annular cavity groove (13) surrounding the bottom end of the charging pile body; the longitudinal cavity grooves (12) are distributed on the arc-shaped surface of the fillet (11), the end parts of the longitudinal cavity grooves (12) are communicated with the through holes (27) of the cavity (23) in the groove (3), and the middle parts of the longitudinal cavity grooves (12) are communicated with the annular cavity grooves (13).

4. A fire and water resistant charging pile according to claim 3, characterized in that: the side wall of the charging pile body (1) is of a vacuumized plate shell structure, and an electric system in the charging pile body (1) is fixed on the basis of cross transverse columns (41) in the cylinder seat (2).

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