Novel direct-current quick-charging receptor socket with protection mechanism

Abstract

The invention provides a novel direct-current quick-charging receptor socket with a protection mechanism, and relates to the technical field of sockets. L-shaped sliding rods symmetrically penetrate through the U-shaped dustproof cover in a sliding mode through pushing of springs, the tail ends of the L-shaped sliding rods are fixedly connected with the bottom side parts of sliding blocks, two pushing rods are symmetrically and rotationally installed on the two short side edges of the inner side sliding block, and connecting rods are rotationally connected between the head ends of the pushing rods and the top ends of the L-shaped sliding rods. The tail ends of the connecting rods, close to each other, on the two adjacent inner sliding blocks abut against and make contact with each other, and the tail ends of the connecting rods, close to the outer sliding blocks, on the inner sliding blocks abut against and make contact with the outer sliding blocks. Two U-shaped dust covers are symmetrically fixed to the two short edge sides of the sliding block located on the inner side between the two sliding blocks located on the outer side. Compared with the prior art, the USB charging socket has the advantages that the row of sliding blocks are tightly arranged in a sliding manner, and compared with the prior art, numerous plug-in mounting spaces are eliminated, and more USB charging female heads can be arranged in the limited space of the socket body.

Description

Technical Field

[0001] The present invention relates to the technical field of sockets, and in particular to a novel DC fast charging receptor socket with a protective mechanism. Background Art

[0002] The new DC fast charging receptor socket with protection mechanism generally refers to a DC charging socket designed for fast charging applications and has certain safety protection functions. This socket is usually used in fast charging stations for electric vehicles, but may also be used in other occasions that require high-efficiency DC power input.

[0003] Most of the USB charging female connectors arranged on the existing sockets are fixedly installed, and for ease of use, a gap must be reserved between a row of USB charging female connectors for the USB male connectors to be inserted, removed, and assembled. These insertion and extraction gaps will occupy too much space on the socket, resulting in that more USB charging female connectors cannot be arranged in the limited space of the socket; Although some sockets arrange the USB charging female heads in a sliding and closely arranged form, so that a row of USB charging female heads can share one or two sliding margin spaces to slide to make room for the USB male heads to be inserted, removed and assembled, thereby eliminating many insertion and assembly gaps and avoiding excessive occupation of the socket space by many insertion and assembly gaps, and more USB charging female heads can be arranged in the limited space of the socket, these slidably arranged USB charging female heads require additional manual operation when sliding into the space, resulting in that when the USB male head is plugged in and used, one hand is required to hold and fix the USB male head, and the other hand is required to slide the USB charging female head into the space, and both hands are required to operate in coordination, so that the USB male head cannot be plugged in and used with one hand, and the operation is troublesome and inconvenient. Summary of the invention

[0004] In view of this, the present invention provides a novel DC fast charging receptor socket with a protective mechanism to solve the problem that the USB male plug cannot be plugged in with one hand and the operation is troublesome and inconvenient.

[0005] The technical solution proposed by the present invention is: a novel DC fast charging receptor socket with a protective mechanism, specifically comprising: a socket body, wherein a mounting groove is provided on a portion of the socket body close to a short side; Two horizontal support positioning shafts are symmetrically fixed inside the socket body, and the two horizontal support positioning shafts are located at adjacent positions below the installation groove; a row of tightly spaced sliders are installed on the two horizontal support positioning shafts through spring pushing and sliding, and a USB charging female head is installed through the slider; two U-shaped dust covers are symmetrically fixed on the two short sides of the slider located at the inner position between the two outer sliders, and the USB charging female head on the inner slider is set to slide through; The U-shaped dust cover is pushed by a spring to symmetrically penetrate an L-shaped sliding rod, the tail end of the L-shaped sliding rod is fixedly connected to the bottom part of the slider, and two push rods are symmetrically installed on the two short sides of the inner slider for rotation, and a connecting rod is rotatably connected between the head end of the push rod and the top end of the L-shaped sliding rod; The tail ends of the connecting rods on the two adjacent inner sliders that are close to each other are in contact with each other, and the tail end of the connecting rod on the inner slider that is close to the outer slider is in contact with the outer slider.

[0006] Furthermore, two springs are symmetrically slidably sleeved on both end portions of the cross brace positioning shaft, and the first ends of the springs are in contact with the outer sliding blocks.

[0007] Furthermore, a row of the sliders is slidably located in the installation groove, and the vertical parts of the two rows of U-shaped dust covers are slidably fitted with the two long side walls of the installation groove; Dust shielding plates are fixed on opposite sides of the two outer sliding blocks, and a sliding margin space is formed between the outer sliding block and the short side wall of the installation groove, and the dust shielding plates slide and cover the sliding margin space.

[0008] Furthermore, two detachable buffer rings are symmetrically mounted and fixed on both ends of the socket body, and the buffer ring is circular as a whole with horizontal structures at the upper and lower ends.

[0009] Furthermore, the arc-shaped portion of the buffer ring is symmetrically slidably mounted with two sliding sleeves, and the four sliding sleeves are respectively fixedly connected to the two end portions of the socket body by bolts.

[0010] Furthermore, two protruding ear blocks are symmetrically fixed at both ends of a long side of the socket body, and an insertion shaft is slidably installed on the two protruding ear blocks through spring pushing.

[0011] Furthermore, the tail end of the plug shaft is rotatably connected to a pull rod, and a long connecting frame is rotatably connected between the tail ends of the two pull rods.

[0012] Furthermore, three insertion holes are equidistantly provided on the arc portion of the buffer ring close to the insertion shaft, and the insertion shaft and the sliding sleeve are inserted and matched with each other in a selectable manner.

[0013] Furthermore, one end of the socket body is connected to a power cord, and the first end of the power cord is connected to a plug.

[0014] Furthermore, the upright portion of the L-shaped sliding rod, the connecting rod and the push rod are all shielded inside the U-shaped dust cover.

[0015] The novel DC fast charging receiver socket with a protective mechanism provided by the present invention has the following beneficial effects: 1. A row of sliders is arranged in a closely sliding manner, and a space for plugging and installing a USB male head can be vacated in the form of relative sliding, without setting numerous plugging and installing spaces between them. Compared with the prior art, numerous plugging and installing spaces are eliminated, avoiding excessive occupation of the space on the socket body by numerous plugging and installing spaces, and more USB female charging heads can be set in the limited space of the socket body.

[0016] 2. When a row of sliders generates a plugging and installing space during sliding, it is implemented by sharing the two sliding margin spaces formed by the interval between the outer slider and the short side wall of the installation groove. This makes the generation of the plugging and installing space between a row of sliders only waste two sliding margin spaces with relatively small occupation and limited area, avoiding excessive occupation of the space on the socket body and reducing the number of USB female charging heads set, offsetting to a certain extent the function of setting more USB female charging heads achieved by arranging a row of sliders in a closely sliding manner as above.

[0017] 3. When the USB male head is plugged and used in cooperation with the receptor USB female charging head, the USB male head is first pushed against the receptor USB female charging head and the receptor USB female charging head is pushed and slid downward. When the receptor USB female charging head is pushed and slid downward, it pushes and drives the USB female charging heads on its adjacent sides to slide away from each other, vacating a space for plugging and installing the USB male head and the receptor USB female charging head. This can save the trouble of manually driving the USB female charging head to slide to generate a plugging and installing space, and the operation is convenient, which helps to improve the plugging and using efficiency of the socket.

[0018] 4. Since the plugging and installing spaces on both sides of the receptor USB female charging head can be directly generated by pushing the receptor USB female charging head with the USB male head without manually driving the USB female charging head additionally, the generation of the plugging and installing space and the plugging and using operation of the USB male head can be directly implemented with one hand. Compared with the prior art, it saves the trouble of having to cooperate with both hands to complete the plugging and using of the USB male head, which is beneficial to further improving the operation convenience and the plugging and using efficiency of the socket.

[0019] 5. Two rows of U-shaped dust covers slide and cover the sliding gaps between a row of sliders and the two long side walls of the installation groove, which can seal the sliding gaps. And two dust-proof plates slide and cover the two margin spaces, which can seal the two margin spaces. Furthermore, the cooperation of two rows of U-shaped dust covers and two dust-proof plates can comprehensively seal the interval gap between a row of sliders and the installation groove, avoiding a large amount of external dust from entering the socket body through the interval gap and causing excessive dust accumulation inside the socket body, so that the socket body better takes into account the sealing performance on the premise of ensuring the free sliding of a row of sliders, and the practicability is better.

[0020] 6. Two buffer rings are wrapped around the two ends of the socket body and fixedly connected to the socket body through four sliding sleeves, which can implement impact protection for the socket to prevent the socket from directly contacting the ground when it falls and hits the ground, helping to reduce the chance of the socket being deformed, broken or damaged by impact. The buffer ring is made of high-strength and high-toughness plastic, and has a certain elastic deformation property. When it is hit, it can elastically deform under the force and absorb part of the impact force. The two arc-shaped parts of the buffer ring are bent and also have a certain elastic deformation property and impact force absorption function. In this way, the buffer ring's own material and the elastic deformation property of the two arc-shaped parts can be used together to absorb more impact force, which helps to improve the buffering protection effect of the socket. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0022] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0023] In the attached picture: Figure 1 The overall structural diagram of the present invention is shown; Figure 2 A schematic diagram showing a disassembled state of the buffer ring of the present invention is shown; Figure 3 A schematic diagram of the inner side structure of the socket body of the present invention is shown; Figure 4 A schematic diagram of the bottom structure of the USB charging female connector of the present invention is shown; Figure 5 A schematic diagram of the inner structure of the cutaway U-shaped dust cover of the present invention is shown; Figure 6 A schematic diagram showing the installation position of the L-shaped slide bar of the present invention is shown; Figure 7 A schematic diagram of the structure of the slider of the present invention is shown; Figure 8 A schematic diagram of the bottom structure of the slider of the present invention is shown.

[0024] List of reference numerals: 1. Socket body; 101. Protruding ear block; 102. Insertion shaft; 103. Pull rod; 104. Long connecting frame; 105. Mounting slot; 106. Horizontal support positioning shaft; 2. Buffer ring; 201. Sliding sleeve; 3. Sliding block; 301. U-shaped dust cover; 302. Dust shielding plate; 303. L-shaped sliding bar; 3031. Fixed plate; 304. Push rod; 305. Connecting rod; 4. USB charging female connector; 5. Power cord; 6. Plug. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0026] Example 1, please refer to Figures 1 to 8 ; The present invention proposes a novel DC fast charging receptor socket with a protective mechanism, comprising: a socket body 1, a portion of the socket body 1 close to a short side is provided with a mounting groove 105; Two horizontal support positioning shafts 106 are symmetrically fixed inside the socket body 1, and the two horizontal support positioning shafts 106 are located at adjacent positions below the mounting groove 105; a row of tightly spaced sliders 3 are slidably installed on the two horizontal support positioning shafts 106 through spring pushing, and a USB charging female connector 4 is installed through the slider 3; two U-shaped dust covers 301 are symmetrically fixed on the two short sides of the slider 3 located at the inner position between the two outer sliders 3, and the USB charging female connector 4 on the inner slider 3 is set to slide through; The charging device is connected to the USB charging female connector 4 for charging via a USB charging cable. When charging is used, the USB male connector at the tail end of the USB charging cable needs to be plugged into the USB charging female connector 4. A sliding margin space is formed between the outer slider 3 and the short side wall of the mounting groove 105. A row of USB charging female connectors 4 are slidably installed via a row of sliders 3. When the USB charging female connectors 4 on both sides of the recipient USB charging female connector 4 to be plugged in are already plugged in with USB male connectors, the USB charging female connectors 4 on both sides of the recipient USB charging female connector 4 can be slid away from each other to free up space for plugging and installing a new USB male connector with the recipient USB charging female connector 4, so as to facilitate the plugging and installation of the new USB male connector. A row of sliders 3 are arranged in a close sliding manner, and space for the USB male plug to be installed can be vacated in the form of relative sliding, which makes it unnecessary to reserve a large number of fixed physical plug-in installation spaces between the row of sliders 3. Compared with the prior art, a large number of plug-in installation spaces are eliminated, and it is avoided that a large number of plug-in installation spaces occupy too much space on the socket body 1, and more USB charging female plugs 4 can be arranged in the limited space of the socket body 1. When a row of sliders 3 slides to generate a plug-in installation space, it slides into two sliding margin spaces, which makes it possible for a row of sliders 3 to share two sliding margin spaces for implementation. The generation of the plug-in installation space between the row of sliders 3 only wastes two sliding margin spaces with smaller occupation and limited area, avoiding excessive occupation of the space on the socket body 1, reducing the number of USB charging female plugs 4, and to a certain extent offsetting the above function of setting more USB charging female plugs 4 by sliding a row of sliders 3 in a close sliding arrangement. The L-shaped sliding rod 303 is symmetrically pushed through the U-shaped dust cover 301 by a spring, and the tail end of the L-shaped sliding rod 303 is fixedly connected to the bottom part of the slider 3. Two push rods 304 are symmetrically installed on the two short sides of the inner slider 3, and a connecting rod 305 is rotatably connected between the head end of the push rod 304 and the top end of the L-shaped sliding rod 303. The tail ends of the connecting rods 305 on the two adjacent inner sliders 3 are in contact with each other, and the tail end of the connecting rod 305 on the inner slider 3 close to the outer slider 3 is in contact with the outer slider 3; a fixing plate 3031 is fixed to the tail end of the L-shaped slider 303, and the L-shaped slider 303 is fixedly connected to the slider 3 through the fixing plate 3031; The two L-shaped slide bars 303, the four push rods 304 and the four connecting rods 305 on the same inner slide block 3 are connected together with the inner slide block 3 to form a four-way crank slider mechanism. Through the four-way crank slider mechanism, sliding the two L-shaped slide bars 303 downward can drive the four push rods 304 to slide synchronously towards each other, and the push drives the slide blocks 3 and the USB charging female connector 4 on the adjacent two sides of the inner slide block 3 to slide away from each other, leaving space for the USB male connector to be plugged in and installed with the receiving USB charging female connector 4 on the inner slide block 3; When the USB male connector is used in plugging and mating with the receptor USB female charging connector 4, the USB male connector is first pushed against the receptor USB female charging connector 4 and the receptor USB female charging connector 4 is pushed and slid downward. Based on this, when the receptor USB female charging connector 4 is pushed and slid downward, it pushes and drives the USB female charging connectors 4 on its adjacent sides to move away from each other and slide, creating a plugging and installation space for the USB male connector and the receptor USB female charging connector 4. This can eliminate the trouble of manually driving the USB female charging connector 4 to slide to create a plugging and installation space, simplify the plugging operation steps of the USB male connector and the receptor USB female charging connector 4, contribute to improving the convenience of using the socket for plugging, and because the plugging and installation spaces on both sides of the receptor USB female charging connector 4 can be directly generated by pushing the receptor USB female charging connector 4 with the USB male connector without the need for additional manual driving of the USB female charging connector 4. Furthermore, this enables the generation of the plugging and installation space and the plugging operation of the USB male connector to be directly implemented with one hand. Compared with the prior art, it eliminates the trouble of having to use both hands cooperatively to complete the plugging and use of the USB male connector, which is conducive to further simplifying the plugging operation steps of the USB male connector and the receptor USB female charging connector 4 and improving the convenience of using the socket for plugging; In the above operation process, after the plugging and installation space is generated, the USB male connector and the receptor USB female charging connector 4 are calibrated and plugged in; Preferably, two springs are symmetrically and slidably sleeved on both ends of the cross brace positioning shaft 106, and the first ends of the springs abut against the outer slider 3; The four springs are used to rebound and push to drive the slider 3 and the USB female charging connector 4 after the sliding space to reset, and to push and hold a row of sliders 3 and the USB female charging connectors 4 in a tightly abutted arrangement state under normal conditions.

[0027] Preferably, a row of sliders 3 slides in the installation groove 105, and the vertical parts of the two rows of U-shaped dust covers 301 correspond to slidably fit with the two long side walls of the installation groove 105; dust shielding plates 302 are fixed on the opposite sides of the two outer sliders 3, and the dust shielding plates 302 slide to cover the sliding allowance space; The two rows of U-shaped dust covers 301 slide to cover the sliding gap between a row of sliders 3 and the two long side walls of the installation groove 105, which can seal the sliding gap, and the two dust shielding plates 302 slide to cover the two allowance spaces, which can seal the two allowance spaces. Furthermore, the cooperation of the two rows of U-shaped dust covers 301 and the two dust shielding plates 302 can comprehensively seal the gap between a row of sliders 3 and the installation groove 105, preventing a large amount of external dust from entering the socket body 1 through the gap, causing excessive dust accumulation inside the socket body 1, and enabling the socket body 1 to better balance the sealing performance while ensuring the free sliding of a row of sliders 3, with better practicality.

[0028] Preferably, two detachable buffer rings 2 are symmetrically mounted and fixed on both ends of the socket body 1, and the buffer ring 2 is a circular structure with horizontal upper and lower ends.

[0029] Preferably, the arc-shaped portion of the buffer ring 2 is symmetrically slidably mounted with two sliding sleeves 201, and the four sliding sleeves 201 are respectively fixedly connected to the two end portions of the socket body 1 by bolts; Two buffer rings 2 are wrapped around the two ends of the socket body 1 and fixedly connected to the socket body 1 through four sliding sleeves 201, which can implement impact protection for the socket to prevent the socket from directly contacting the ground when it falls and hits the ground, which helps to reduce the probability of the socket being deformed, broken or damaged by impact. The buffer ring 2 is made of high-strength and high-toughness plastic, which has a certain elastic deformation performance. When it is hit, it can elastically deform by itself to absorb part of the impact force. The two arc-shaped parts of the buffer ring 2 are bent and also have a certain elastic deformation performance and impact force absorption function. In this way, the buffer ring 2 itself The material of the material and the elastic deformation performance of the two arc-shaped parts are combined to absorb more impact force, which helps to improve the buffering protection effect of the socket; Through the sliding sleeves 201 at four locations, the socket body 1 can be deflected and slid along the arc-shaped parts of the two buffer rings 2 to adjust the angles of the USB charging female head 4 and the socket thereon to meet the plug-in charging needs from different directions or angles. It is flexible to use and has a wide range of applications.

[0030] Preferably, two protruding ear blocks 101 are symmetrically fixed at both ends of a long side of the socket body 1, and an insert shaft 102 is slidably installed on the two protruding ear blocks 101 through spring pushing.

[0031] Preferably, the tail end of the insertion shaft 102 is rotatably connected to a pull rod 103 , and a long connecting frame 104 is rotatably connected between the tail ends of the two pull rods 103 .

[0032] Preferably, three insertion holes are formed at equal intervals on the arc portion of the buffer ring 2 near the insertion shaft 102, and the insertion shaft 102 is inserted and matched with the sliding sleeve 201, and is inserted and matched with the three insertion holes in an optional manner; The two insertion shafts 102 can be inserted and positioned with the two sliding sleeves 201 on the corresponding sides on the arc-shaped parts on the corresponding sides of the two buffer rings 2, so as to position and maintain the deflection adjustment angle of the socket body 1; The two pull rods 103, the two plug shafts 102 and the long connecting frame 104 are connected together to form two crank slider mechanisms. Through the two crank slider structures, the inner and outer sliding long connecting frame 104 can drive the two plug shafts 102 to slide toward each other synchronously and cooperate with the arc-shaped parts of the two buffer rings 2 to tighten the socket body 1.

[0033] Preferably, one end of the socket body 1 is connected to a power cord 5 , and the first end of the power cord 5 is connected to a plug 6 .

[0034] Preferably, the upright portion of the L-shaped sliding rod 303 , the connecting rod 305 and the push rod 304 are shielded inside the U-shaped dust cover 301 .

[0035] Based on the first embodiment, the second embodiment: The socket body 1 is provided with an inverter and a DC fast charging module, the inverter is connected to the power line 5 for power supply, the DC fast charging module is electrically connected to the inverter, and the DC fast charging module is connected to the USB charging female connector 4 for power supply through a redundantly provided soft wire; The inverter is used to convert AC power into DC power of corresponding voltage, and the DC fast charging module is used to provide fast charging protocols and functions.

[0036] The working principle of this embodiment is as follows: the charging device is connected to the USB charging female head 4 through the USB charging cable for charging. When charging, the USB male head at the tail end of the USB charging cable needs to be plugged into the USB charging female head 4. A row of USB charging female heads 4 is slidably installed through a row of sliders 3. When the USB charging female heads 4 on both sides of the recipient USB charging female head 4 to be plugged in are already plugged in with USB male heads, the USB charging female heads 4 on both sides of the recipient USB charging female head 4 can be slid away from each other to leave space for the new USB male head to be plugged in and installed with the recipient USB charging female head 4, so as to facilitate the plugging and installation of the new USB male head. When the row of sliders 3 slides to generate the plugging and installation space, they slide into the two sliding margin spaces. The two L-shaped slide bars 303, the four push rods 304 and the four connecting rods 305 on the same inner slide block 3 are connected together with the inner slide block 3 to form a four-way crank slider mechanism. Through the four-way crank slider mechanism, sliding the two L-shaped slide bars 303 downward can drive the four push rods 304 to slide synchronously towards each other, and the push drives the slide blocks 3 and the USB charging female connector 4 on the adjacent two sides of the inner slide block 3 to slide away from each other, leaving space for the USB male connector to be plugged in and installed with the receiving USB charging female connector 4 on the inner slide block 3; When the USB male connector is used in conjunction with the recipient USB charging female connector 4, the USB male connector is first pushed onto the recipient USB charging female connector 4 and then the recipient USB charging female connector 4 is pushed downward. Based on the above, when the recipient USB charging female connector 4 is pushed downward, the USB charging female connectors 4 on both sides thereof are pushed away from each other to make space for the USB male connector and the recipient USB charging female connector 4 to be plugged in and installed. After the plugging and installing space is generated, the USB male connector and the recipient USB charging female connector 4 are calibrated and plugged in. Four springs are used for rebounding and pushing to drive the slider 3 and the USB charging female connector 4 to reset after sliding to the empty position, and under normal circumstances, a row of sliders 3 and the USB charging female connector 4 are pushed and kept in a tightly abutted and arranged state of use.

[0037] In this article, there are a few points to note: 1. The drawings of the embodiments of the present invention only involve structures related to the embodiments of the present invention, and other structures can refer to the general design.

[0038] 2. In the absence of conflict, the embodiments of the present invention and the features therein may be combined with each other to obtain new embodiments.

[0039] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A novel DC fast charging receiver socket with a protective mechanism, comprising: A socket body (1), wherein a mounting groove (105) is provided on a portion of the socket body (1) close to a short side; The socket body (1) is characterized in that two transverse support positioning shafts (106) are symmetrically fixed inside, and the two transverse support positioning shafts (106) are located at adjacent positions below the mounting groove (105); a row of tightly spaced sliders (3) are slidably mounted on the two transverse support positioning shafts (106) by means of spring pushing, and a USB charging female connector (4) is installed through the slider (3); two U-shaped dust covers (301) are symmetrically fixed on the two short sides of the slider (3) located at the inner side between the two outer sliders (3), and the USB charging female connector (4) on the inner slider (3) is arranged to slide through; The L-shaped sliding rod (303) is symmetrically pushed and slidably penetrated through the U-shaped dust cover (301) by a spring, the tail end of the L-shaped sliding rod (303) is fixedly connected to the bottom part of the slider (3), two pushing rods (304) are symmetrically rotatably installed on the two short sides of the inner slider (3), and a connecting rod (305) is rotatably connected between the head end of the pushing rod (304) and the top end of the L-shaped sliding rod (303); The tail ends of the connecting rods (305) on the two adjacent inner sliders (3) that are close to each other are in contact with each other, and the tail end of the connecting rod (305) on the inner slider (3) that is close to the outer slider (3) is in contact with the outer slider (3).

2. A novel DC fast charging receiver socket with a protective mechanism according to claim 1, characterized in that: Two springs are symmetrically slidably sleeved on both end portions of the cross brace positioning shaft (106), and the head ends of the springs are in contact with the outer sliding blocks (3).

3. A novel DC fast charging receiver socket with a protective mechanism according to claim 1, characterized in that: A row of the sliding blocks (3) is slidably located in the installation groove (105), and the vertical parts of the two rows of U-shaped dust covers (301) are slidably fitted with two long side walls of the installation groove (105); Dust shielding plates (302) are fixed on opposite sides of the two outer sliders (3), and a sliding margin space is formed between the outer slider (3) and the short side wall of the installation groove (105), and the dust shielding plates (302) slide and cover the sliding margin space.

4. A novel DC fast charging receiver socket with a protective mechanism according to claim 1, characterized in that: Two detachable buffer rings (2) are symmetrically mounted and fixed at both ends of the socket body (1); the buffer ring (2) is in the form of a circular structure with horizontal upper and lower ends.

5. A novel DC fast charging receiver socket with a protection mechanism according to claim 4, characterized in that: Two sliding sleeves (201) are symmetrically slidably mounted on the arc-shaped portion of the buffer ring (2), and the four sliding sleeves (201) are respectively fixedly connected to the two end portions of the socket body (1) by bolts.

6. A novel DC fast charging receiver socket with a protection mechanism according to claim 1, characterized in that: Two protruding ear blocks (101) are symmetrically fixed at both ends of a long side of the socket body (1), and an insertion shaft (102) is slidably mounted on the two protruding ear blocks (101) through spring pushing.

7. A novel DC fast charging receiver socket with a protection mechanism according to claim 6, characterized in that: The tail end of the insertion shaft (102) is rotatably connected to a pull rod (103), and a long connecting frame (104) is rotatably connected between the tail ends of the two pull rods (103).

8. A novel DC fast charging receiver socket with a protection mechanism according to claim 4, characterized in that: The arc-shaped portion of the buffer ring (2) close to the plug shaft (102) is provided with three equidistantly spaced insertion holes, and the plug shaft (102) and the sliding sleeve (201) are inserted and matched with each other, and are plugged and matched with the three insertion holes in a selectable manner.

9. A novel DC fast charging receiver socket with a protection mechanism according to claim 1, characterized in that: One end of the socket body (1) is connected to a power cord (5), and the head end of the power cord (5) is connected to a plug (6).

10. A novel DC fast charging receiver socket with a protection mechanism according to claim 1, characterized in that: The upright portion of the L-shaped sliding rod (303), the connecting rod (305) and the push rod (304) are all shielded inside the U-shaped dust cover (301).

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