A hidden charging pile

Abstract

The present invention discloses a hidden charging pile, including a charging gun, a fixed body and a rotating body. The fixed body is provided with a first chamber for accommodating a rotating body, and the rotating body is hinged to the fixed body. The charging gun is accommodated in the rotating body, and the rotating body is rotated to expose the charging gun. The hidden charging pile utilizes the rotating body located at the position of the first chamber of the fixed body to be hinged to the fixed body, and the charging gun is accommodated in the rotating body. The charging pile can be opened or closed by rotating the rotating body. When it is not needed, the rotating body is closed in the fixed body to achieve a hidden effect, making the structure of the charging pile more compact, avoiding the large space occupied by traditional charging piles, and improving space utilization. In addition, this hidden charging pile can also effectively reduce the possibility of scratching and damage to the charging pile, reduce installation conditions, and is more suitable for large-scale installation in cities, while meeting the charging needs of electric vehicles without affecting the appearance of the city. This invention is used in the field of automobile charging.

Description

Technical Field

[0001] The invention relates to the field of automobile charging, and in particular to a hidden charging pile. Background Art

[0002] With the increasing shortage of petroleum energy and the continuous improvement of national environmental protection requirements, people's environmental awareness is also increasing, and they are constantly moving towards clean energy in the development and application of energy. In the traditional automotive field, most cars are fuel vehicles. In order to reduce carbon dioxide emissions and other environmental pollution, zero-pollution, zero-emission new energy vehicles have emerged, and electric vehicles have been widely used in new energy vehicles. Compared with traditional fuel vehicles, electric vehicles can effectively reduce the emission of gases such as carbon dioxide, reduce environmental pressure, and run smoothly, improving vehicle driving efficiency. However, for electric vehicles, the storage capacity of electric vehicle batteries is limited, and the continuous driving mileage will also be limited, resulting in a short cruising range. At present, the cruising range of electric vehicles is increased by setting up enough charging piles, thereby improving the driving ability of electric vehicles.

[0003] Traditional charging piles are mostly vertical charging piles or wall-mounted charging piles. Compared with vertical charging piles, vertical charging piles are larger in size and require more installation space, so they cannot be used in compact parking spaces such as large hospital parking lots, roadside parking spaces, and park scenic parking lots. And because vertical charging piles adopt a pile body structure design, there is a risk of being scratched or even damaged by vehicles when installed on the roadside. The use of more vertical charging piles in our cities will affect the city's appearance and cause certain visual pollution, which is not conducive to the improvement of the city's image. For wall-mounted charging piles, the most basic installation requirement is to have a mounting carrier such as a wall or a column. However, except for underground parking lots that meet the installation conditions of wall-mounted charging piles, most parking spaces do not have such a mounting carrier, so they still cannot meet actual needs well. Summary of the invention

[0004] The purpose of the present invention is to provide a concealed charging pile with compact structure and strong practicality.

[0005] The technical solution adopted by the present invention is: a hidden charging pile, including a charging gun, a fixed body and a rotating body, the fixed body is provided with a first chamber for accommodating the rotating body, the rotating body is hinged to the fixed body, the charging gun is accommodated in the rotating body, and the rotating body exposes the charging gun by rotating.

[0006] As an improvement of the above solution, a first elastic component is provided at the hinge position of the fixed body and the rotating body, the first elastic component drives the rotating body to rotate, and a locking component that can clamp the rotating body is provided on the fixed body.

[0007] As an improvement of the above solution, the locking assembly includes a first assembly and a second assembly that can be connected, the first assembly is located on the fixed body, and the number of the second assemblies is 2 and they are respectively located at different height positions on the rotating body.

[0008] As an improvement of the above scheme, a transverse groove is provided on the fixed body, and a long hole is opened on the transverse groove. The first component includes a push block, a lock tongue, a lock seat and a spring. The lock tongue and the spring are both installed on the lock seat. The push block is connected to the lock tongue through the long hole. The two second components are respectively the first slot hole and the second slot hole. The lock tongue extends into the first slot hole or the second slot hole under the action of the spring.

[0009] As an improvement of the above solution, a first side wing is provided on the lower side of the fixed body, an arc-shaped long hole is opened on the first side wing, and a convex block is provided on the rotating body, and the convex block is located in the arc-shaped long hole.

[0010] As an improvement of the above solution, a second chamber for accommodating the charging gun is provided in the rotating body, the height position of the second chamber is located between the first slot and the second slot, and a column is provided on the periphery of the second chamber, which is rotatably connected to the fixed body.

[0011] As an improvement of the above scheme, a second side wing is further provided on the lower side of the fixed body, a first through hole is provided on the second side wing, a second through hole is provided on the rotating body, and the first elastic component includes a connecting column and a torsion spring, the connecting column passes through the first through hole, the torsion spring and the second through hole, and the two ends of the torsion spring respectively resist the fixed body and the rotating body.

[0012] As an improvement of the above scheme, an ear plate with a through hole is also provided on the lower side of the fixed body, the connecting column passes through the through hole of the ear plate, a convex nail is provided on the rotating body, one end of the torsion spring rests against the rotating body at the position of the convex nail, and a damping device is provided between the rotating body and the fixed body.

[0013] As an improvement of the above solution, it also includes a storage component, the charging gun is connected to the power supply through a power transmission line, the power transmission line is accommodated in the storage component by curling, and a second elastic component connected to the storage component is provided on the fixed body, and the second elastic component drives the storage component to rotate to accommodate the power transmission line.

[0014] As an improvement of the above scheme, an upper end plate is provided in both the fixed body and the rotating body, the first chamber is located in the upper end plate of the fixed body, and the rotating body rotates so that the upper end plate of the rotating body closes the first chamber and is flush with the upper end plate of the fixed body, and a plurality of mounting holes are provided on the upper end plate of the fixed body.

[0015] The beneficial effects of the present invention are as follows: the hidden charging pile utilizes a rotating body located at the first chamber position of the fixed body to be hinged with the fixed body, and the charging gun is stored in the rotating body. The charging pile can be opened or closed by rotating the rotating body. When it is not needed, the rotating body is closed in the fixed body to achieve a hidden effect, making the structure of the charging pile more compact, avoiding the large space occupied by traditional charging piles, and improving space utilization. In addition, this hidden charging pile can also effectively reduce the possibility of scratching and damage to the charging pile, reduce installation conditions, and is more suitable for large-scale installation in cities. It will not affect the appearance of the city while meeting the charging needs of electric vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the accompanying drawings:

[0017] Figure 1 It is a structural diagram of the first state of the charging pile;

[0018] Figure 2 is an exploded diagram of the charging pile;

[0019] Figure 3 is a structural schematic diagram of the second state of the charging pile;

[0020] Figure 4 is a schematic diagram of the bottom structure of the charging pile in the second state;

[0021] Figure 5 It is a schematic diagram of the structure of the fixed body;

[0022] Figure 6 is a schematic diagram of the side structure of the fixed body;

[0023] Figure 7 It is a schematic diagram of the structure of a rotating body;

[0024] Figure 8 It is a schematic diagram of the side structure of the rotating body;

[0025] Fig. 9 is a schematic structural diagram of a first elastic component;

[0026] Fig.10 is a schematic diagram of the structure of the locking assembly;

[0027] Fig.11 is an exploded view of the locking assembly. DETAILED DESCRIPTION

[0028] Reference Figures 1 to 11The present invention is a hidden charging pile, comprising a charging gun 42, a fixed body 1 and a rotating body 2. Generally, the charging gun 42 is a universal charging gun head, but it can also be set in the form of a socket for subsequent conversion. The charging gun 42 is generally stored in the rotating body 2, and the charging gun 42 is generally connected to the power supply through a transmission line 41. The power supply is generally an external power supply, but it can also be an internal power supply, and the internal power supply can be the electricity stored or generated in the charging pile. The rotating body 2 can be a solid structure or a bracket structure, and there is a second chamber 21 in the rotating body 2 that can accommodate at least the charging gun 42. Generally, a first chamber 11 is provided on the fixed body 1, and an upward opening is generally provided on the first chamber 11. The rotating body 2 is located in the first chamber 11 and is hinged to the fixed body 1, that is, the rotating body 2 can rotate relative to the fixed body 1. Generally, the rotating body 2 rotates in the fixed body 1 to realize two states, namely, the closed state and the open state. When the rotating body 2 is in the closed state, the rotating body 2 should be hidden in the fixed body 1, and when the rotating body 2 is in the open state, the charging gun 42 should be exposed for easy access and use by the outside world. In addition, in the rotating body 2, the side opposite to the axis of rotation of the rotating body 2 should be set to an arc shape to avoid interference between the rotating body 2 and the edge of the first chamber 11 when the rotating body 2 rotates. Generally, the fixed body 1 is installed on the ground, and a corresponding groove for accommodating the hidden charging pile is provided on the ground.

[0029] In most cases, the first chamber 11 is set to be rectangular, and the rotating body 2 is hinged to the fixed body 1 from one side. Usually, an upper end plate is provided in both the fixed body 1 and the rotating body 2, and the first chamber 11 is located in the upper end plate of the fixed body 1. The rotating body 2 closes the first chamber 11 by rotating the upper end plate of the rotating body 2, that is, the upper end plates of the fixed body 1 and the rotating body 2 are complementary, and the upper end plates of the fixed body 1 and the rotating body 2 are kept as flat as possible. Generally, the upper end plates of the fixed body 1 and the rotating body 2 are set to have a gentle transition with the ground, but can also be set to be flat with each other. Usually, support ribs are also provided on the inner side of the first chamber 11, and waterproof strips are provided on the support ribs. When the rotating body 2 is in a closed state, the upper end plate of the rotating body 2 will press the waterproof strip to achieve a water-proof effect. And the upper end plates of the fixed body 1 and the rotating body 2 have sufficient thickness and support strength to support vehicles running over without damage. Generally, a plurality of mounting holes 14 are provided on the upper end plate of the fixing body 1 , and the fixing body 1 can be mounted on the ground by passing bolts through the mounting holes 14 .

[0030] As a preferred embodiment, a first elastic component 6 is provided at the hinge position of the fixed body 1 and the rotating body 2. The first elastic component 6 is generally provided with some elastic components, generally elastic bands, rubber, springs, etc. When the rotating body 2 is closed in the fixed body 1, the first elastic component 6 is in an energy storage state. Preferably, the elastic component in the first elastic component 6 is a torsion spring 63, and the two ends of the torsion spring 63 are respectively against the rotating body 2 and the fixed body 1.

[0031] The second chamber 21 in the rotating body 2 that accommodates the charging gun 42 is generally located on the side of the rotating body 2, and the first elastic component 6 drives the rotating body 2 to rotate and expose the charging gun 42 by releasing energy. A locking component 3 that can clamp the rotating body 2 is provided on the fixed body 1, which is used to control the energy release of the first elastic component 6. Generally, the locking component 3 can be a lock buckle, a threaded connector, etc., as long as it can stabilize the relative position of the rotating body 2 and the fixed body 1. The locking component 3 includes a first component and a second component that can be connected, the first component is provided on the fixed body, and the second component is respectively provided at different heights on the rotating body. Preferably, the first component includes a push block 35, a lock tongue 33, a lock seat 31 and a spring 34. Generally, bolt holes 32 are provided on both sides of the lock seat 31 for easy installation and disassembly. The lock seat 31 can be an integrated structure, and the bolts fix the lock seat 31 to the fixed body 1 through the bolt holes 32. The lock seat 31 can also be divided into a panel and a bottom plate, and the panel can be fixed to the fixed body 1, and the bolts fix the bottom plate to the panel through the bolt holes 32. The lock tongue 33 and the spring 34 are both installed in the lock seat 31. A hole is provided on the side of the lock seat 31, and one end of the lock tongue 33 with an inclined surface extends through the hole. And the inclined surface of the lock tongue 33 opens toward the rotating body 2 away from the fixed body 1, so that the rotating body 2 is convenient to close in the fixed body 1. A transverse groove 12 is opened on the fixed body 1, and a long hole is opened along the transverse groove 12, and the push block 35 is connected to the lock tongue 33 through the long hole. Usually, the push block 35 includes a transverse block and a longitudinal block, the transverse block is located in the transverse groove 12, and the longitudinal block passes through the long hole and is connected to the groove of the lock tongue 33. Usually, the thickness of the transverse block is set slightly smaller than the depth of the transverse groove 12, so that the upper end surface of the push block 35 is slightly lower than the upper end plate of the fixed body 1, which effectively avoids accidental opening. And a plurality of grooves are set on the upper end surface of the push block 35, when the push block 35 is pushed, its friction can be effectively increased to facilitate pushing and opening the rotating body 2. The second component includes a first slot 22 and a second slot 23 respectively provided at different heights on the rotating body 2. Generally, the second chamber 21 for accommodating the charging gun 42 is located between the heights of the first slot 22 and the second slot 23. In fact, the height of the second chamber 21 does not need to be lower than the height of the second slot. The lock tongue 33 extends into the first slot 22 or the second slot 23 under the action of the spring 34, effectively clamping the rotating body 2. Generally, when the rotating body 2 is in the open state, the lock tongue 33 extends into the first slot 22, and when the rotating body 2 is in the closed state, the lock tongue 33 extends into the second slot 23. Pushing the push block 35 and compressing the spring 34 can cause the lock tongue 33 to withdraw from the first slot 22 or the second slot 23.

[0032] As a preferred embodiment, the second chamber 21 of the rotating body 2 is widened at the peripheral position, and a cylinder 9 is installed. The cylinder 9 is generally a cylinder and is rotatably connected to the fixed body 1. The rolling of the cylinder 9 can effectively prevent the wear of the transmission line 41, extend the service life of the transmission line 41, and facilitate the retraction and release of the transmission line 41. Preferably, the second chamber 21 is rectangular, and the cylinder 9 is installed on the three edges except the upper edge. Of course, it is also possible to directly set a number of balls around the second chamber 21, which can also achieve a similar effect. Generally, in order to ensure that the charging gun 42 can be placed more firmly in the second chamber 21, a protrusion is usually set on the edge of the inner side of the second chamber 21. At the same time, in order to avoid interference when the rotating body 2 rotates, the second chamber 21 is set deeper. Usually, a handle is set on the charging gun 42 to facilitate the user to take out the charging gun 42 and put it back into the second chamber 21.

[0033] As a preferred embodiment, a storage assembly 5 is also included for storing the transmission line 41. The storage assembly 5 is generally a rotating component that can roll up the transmission line 41 for storage, and effectively accommodate a sufficiently long transmission line 41. The storage assembly 5 can generally be arranged in the rotating body 2 or the fixed body 1, and is usually rotatably connected. A motor device can be connected to the storage assembly 5 to rotate and drive the release or recovery of the transmission line 41. Preferably, a second elastic component is connected to the storage assembly 5, and the second elastic group is one or more of an elastic band, rubber, spring, etc. When the storage assembly 5 releases the transmission line 41, the second elastic component should store energy at the same time to achieve automatic collection of the transmission line 41.

[0034] In this embodiment, a first wing 13 and a second wing 15 are provided on the lower side of the fixed body 1. Preferably, two first wing 13 and two second wing 15 are provided, which are respectively located on both sides of the first chamber 11. An arc-shaped long hole 131 is opened on the first wing 13, and the center of the arc-shaped long hole 131 is generally located at the hinge position between the rotating body 2 and the fixed body 1. A protrusion 24 is provided at the corresponding position of the rotating body 2, and the protrusion 24 is located in the arc-shaped long hole 131. As the rotating body 2 rotates, the protrusion 24 moves along the arc-shaped long hole 131. The cooperation between the protrusion 24 and the arc-shaped long hole 131 can effectively limit the rotation range of the rotating body 2 and prevent the rotating body 2 from rotating excessively. At the same time, the storage component 5 is a turntable with a cavity in the middle, and the cavity is radially open outward to ensure the axial position of the transmission line 41 when the transmission line 41 is rolled. The lower end of the first wing 13 is provided with a third through hole 132, and the storage assembly 5 is rotatably connected to the first wing 13 through the third through hole 132. In addition, the rotating body 2 is provided with a hole connected to the second chamber 21 for passing the power transmission line 41. Meanwhile, the second elastic component is a spring 7, and two springs are provided, respectively located on both sides of the storage assembly 5. One end of the spring 7 is connected to the storage assembly 5, and the other end is connected to the fixed body 1.

[0035] A first through hole 151 is provided on the second wing 15, and a second through hole 25 is provided on the rotating body 2. The first elastic component 6 includes a connecting column 61 and a torsion spring 63, and the connecting column 61 passes through the first through hole 151, the torsion spring 63, and the second through hole 25 respectively. The part of the rotating body 2 located at the second through hole 25 is generally arranged between the two second wings 15, and the two ends of the torsion spring 63 are respectively against the fixed body 1 and the rotating body 2. In order to achieve a better effect, two torsion springs 63 are generally arranged at positions between the two second wings 15 and the rotating body 2. Preferably, a tail plate is provided on the rotating body 2, and the second through hole 25 is located on the tail plate. An ear plate 152 with a through hole is also provided on the lower side of the fixed body 1, and the connecting column 61 passes through the second through hole 25 on the tail plate and passes through the through hole of the ear plate 152. The connection order of the connecting column 61 in each second wing 15 from outside to inside is the second wing 15, the tail plate, the torsion spring 63, and the ear plate 152. Usually, a clamping block 62 is provided at both ends of the connecting column 61 to prevent the connecting column 61 from falling off. In addition, a protruding nail 26 is provided on the inner side of the tail wing plate on the rotating body 2, and one end of the torsion spring 63 is located at the position of the protruding nail 26 against the rotating body 2. Preferably, two spring reels 16 are provided at the lower edge of the second side wing 15 for accommodating the spring spring 7. The spring reel 16 is fixed to the second side wing 15, one end of the spring spring 7 is fixed at the axial position of the spring reel 16, and the other end extends out of the spring reel 16 and is connected to the storage component 5. Generally, a cross-shaped support beam is provided on the spring reel 16, and the function of the support beam is to support the spring reel 16 and prevent the spring spring 7 from being misplaced and escaping to affect the operation of the storage component 5. Generally, there are rotating shafts extending to the first side wings 13 on both sides of the storage component 5, and one end of the spring spring 7 connected to the storage component 5 is usually fixed on the rotating shaft. A damping device is provided between the rotating body 2 and the fixed body 1. The damping device is generally some elastic buffer device or cylinder buffer device, which can effectively buffer the movement of the rotating body 2. Generally, it is set as a gas spring 8, which is generally composed of a travel rod and a hydraulic rod. The travel rod is connected to the rotating body 2 through a rotatable ball head, and the hydraulic rod is connected to the fixed body 1 through a flat head. When the rotating seat is opened under the potential energy of the first elastic component 6, the gas spring 8 will pull the rotating body 2 so that it can be opened slowly.

[0036] In this embodiment, the power supply device is located outside, and the power transmission line 41 needs to be connected to the outside. Generally, the power transmission line 41 has enough length to be stored in the storage component 5, and then extends out from the rotating shaft of the storage component 5. Preferably, wall panels are also provided around the hidden charging pile to protect the hidden charging pile. The wall panels are generally made of anti-corrosion and rust-proof materials to ensure that they have a long service life. In addition, a circular opening is provided on the wall panel at a position corresponding to the storage component 5, and the power transmission line 41 is connected to the charging pile controller through the circular opening.

[0037] When not in use, the rotating body 2 closes and seals the first chamber 11 of the fixed body 1, and pedestrians and vehicles can pass through it, which can save space and will not affect traffic. When it is needed, the push block 35 is pushed by hand or foot, and the lock tongue 33 of the locking assembly 3 shrinks and exits the first slot 22 and drives the spring 34 to compress. At this time, the torsion spring 63 releases energy to make the rotating body 2 rotate out, and the gas spring 8 buffers to avoid collision between the rotating body 2 and the fixed body 1. During the rotation of the rotating body 2, the protrusion 24 moves in the arc-shaped long hole 131 until it reaches the top of the arc-shaped long hole 131. After that, the push block 35 is released, and the lock tongue 33 extends into the second slot 23 under the action of the spring 34 to help stabilize the relative position of the rotating body 2 and the fixed body 1. Take out the charging gun 42 from the second chamber 21, the transmission line 41 is pulled out of the storage assembly 5, and the storage assembly 5 rotates to drive the spring spring 7 to shrink and store energy. Connect the charging gun 42 to the device that needs to be charged for charging, and pull out the charging gun 42 after charging is completed. Under the action of the clockwork spring 7, the transmission line 41 is rolled back into the storage assembly 5, and the charging gun 42 is placed back into the second chamber 21. Push the push block 35, the lock tongue 33 shrinks and exits the second slot 23 and drives the spring 34 to compress. Then the rotating body 2 is pressed back into the fixed body 1, and the torsion spring 63 shrinks to store energy for the next opening. When the upper end plates of the rotating body 2 and the fixed body 1 are flat, release the push block 35, and the lock tongue 33 extends into the first slot 22 under the action of the spring 34. The action components of this hidden charging pile are mostly mechanical components, which can reduce unnecessary waste of electricity, and the structure is compact and stable.

[0038] Of course, the present invention is not limited to the above-mentioned embodiments, and the combination of different features of the above-mentioned embodiments can also achieve good results. Those skilled in the art can also make equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A hidden charging pile, characterized by: The device comprises a charging gun (42), a fixed body (1) and a rotating body (2); the fixed body (1) is provided with a first chamber (11) for accommodating the rotating body (2); the rotating body (2) is hinged to the fixed body (1); the charging gun (42) is accommodated in the rotating body (2); the rotating body (2) is rotated to expose the charging gun (42); a first elastic component (6) is provided at a hinged position between the fixed body (1) and the rotating body (2); the first elastic component (6) drives the rotating body (2) to rotate; and the fixed body (1) is provided with a locking component (3) capable of locking the rotating body (2); The fixed body (1) is also provided with a second wing (15) on the lower side, the second wing (15) is provided with a first through hole (151), the rotating body (2) is provided with a second through hole (25), the first elastic component (6) comprises a connecting column (61) and a torsion spring (63), the connecting column (61) passes through the first through hole (151), the torsion spring (63) and the second through hole (25), the two ends of the torsion spring (63) respectively abut against the fixed body (1) and the rotating body (2); the rotating body (2) is provided with a tail plate, the second through hole is provided on the tail plate; the locking component (3) comprises a first component and a second component which can be connected to each other, the first component is located on the fixed body (1), the number of the second components is 2 and they are respectively located at different height positions on the rotating body (2); the fixed body (1) is provided with a transverse groove (12), the transverse groove (12) has a long hole, the first component comprises a push block (35), a lock tongue (35), a locking ... 3), a lock seat (31) and a spring (34), the lock tongue (33) and the spring (34) are both mounted on the lock seat (31), the push block (35) is connected to the lock tongue (33) through a long hole, the two second components are respectively a first slot hole (22) and a second slot hole (23), the lock tongue (33) extends into the first slot hole (22) or the second slot hole (23) under the action of the spring (34); a first side wing (13) is provided on the lower side of the fixed body (1), the first side wing (13) 3) is provided with an arc-shaped long hole (131), the rotating body (2) is provided with a protrusion (24), and the protrusion (24) is located in the arc-shaped long hole (131); the rotating body (2) is provided with a second chamber (21) for accommodating a charging gun (42), the height position of the second chamber (21) is located between the first slot hole (22) and the second slot hole (23), and a column (9) is provided on the periphery of the second chamber (21), and the column (9) is rotatably connected to the fixed body (1).

2. The hidden charging pile according to claim 1, characterized in that: The fixed body (1) is also provided with an ear plate (152) with a through hole on the lower side, the connecting column (61) passes through the through hole of the ear plate (152), the rotating body (2) is provided with a protruding nail (26), one end of the torsion spring (63) abuts against the rotating body (2) and is located at the position of the protruding nail (26), and a damping device is provided between the rotating body (2) and the fixed body (1).

3. The hidden charging pile according to claim 2, characterized in that: It also includes a storage component (5), the charging gun (42) is connected to a power source via a power transmission line (41), the power transmission line (41) is accommodated in the storage component (5) by being rolled up, and a second elastic component connected to the storage component (5) is provided on the fixed body (1), and the second elastic component drives the storage component (5) to rotate and accommodate the power transmission line (41).

4. The hidden charging pile according to any one of claims 1 to 3, characterized in that: The fixed body (1) and the rotating body (2) are both provided with an upper end plate, the first chamber (11) is located in the upper end plate of the fixed body (1), the rotating body (2) is rotated so that the upper end plate of the rotating body (2) closes the first chamber (11) and is flush with the upper end plate of the fixed body (1), and a plurality of mounting holes (14) are provided on the upper end plate of the fixed body (1).

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