CN216146259U

CN216146259U - Stable assembly structure of power adapter

Info

Publication number: CN216146259U
Application number: CN202122173024.5U
Authority: CN
Inventors: 李星光
Original assignee: Foshan Shunde Guangyuda Power Supply Co
Current assignee: Foshan Shunde Guangyuda Power Supply Co
Priority date: 2021-09-08
Filing date: 2021-09-08
Publication date: 2022-03-29
Anticipated expiration: 2031-09-08

Abstract

The utility model relates to a stable assembly structure of a power adapter, which comprises an outer shell, an electronic component assembly and a power line, wherein the outer shell is provided with a plurality of electronic components; the outer shell comprises a first shell and a second shell, a shell sealing element and a clamping area are arranged between the first shell and the second shell, the first shell and the second shell are mutually and hermetically clamped through the matching of the shell sealing element and the clamping area, and an accommodating cavity is formed inside the shell; the electronic component assembly is fixedly arranged in the accommodating cavity; the power line is electrically connected with the electronic component assembly and is provided with a connecting end head, the middle part of the connecting end head is provided with a power supply sealing element, and the inner end of the connecting end head is provided with a clamping groove; the first shell is provided with a connecting hole; a clamping buckle is integrally arranged on the second shell; the connecting end is arranged on the connecting hole in a penetrating way, and the clamping groove of the connecting end extends into the accommodating cavity; the second casing is buckled the card through the joint and is established on the joint groove when the assembly to the drive is connected the end and is used for on power sealing element towards the direction extrusion of connecting hole, with the sealing connection between realization connection end and the connecting hole, the practicality is strong.

Description

Stable assembly structure of power adapter

Technical Field

The utility model relates to a stable assembling structure of a power adapter.

Background

Chinese patent document No. CN209767401U discloses a power adapter with a sealing buckle structure in 12/10/2019, which includes an adapter body and an SR line, wherein an SR line interface is provided on the adapter body, the SR line extends into the adapter body from the SR line interface, a waterproof rubber ring is sleeved between the SR line and the SR line interface, a clamping groove is provided at a position where the SR line extends into the adapter body, and the power adapter further includes a plug pin, and the plug pin is fastened in the clamping groove. The utility model discloses a power adapter, including SR line, SR line interface, socket, bolt buckle, socket. However, it has the following disadvantages: 1. the U-shaped bolt is arranged independently, so that the assembly process is more, and the number of components is increased due to the independently arranged U-shaped bolt; 2. the circular holes and the circular rings are circular, the SR wire is easy to slip after being assembled, and the assembly stability is poor; 3. the circular ring only simply wraps the two waterproof rubber rings, the two waterproof rubber rings do not have good sealing effect, and the waterproof performance is poor; 4. the upper cover and the lower cover are fixed through an ultrasonic melting process, if the upper cover and the lower cover fall or collide, the upper cover and the lower cover are loosened, the service life is short, production equipment needs to be additionally arranged in the ultrasonic melting process, and the production cost is high. Therefore, further improvements are necessary.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a stable assembling structure of a power adapter, which overcomes the defects in the prior art.

The firm assembly structure of a power adapter who designs according to this purpose includes shell body, electron component and power cord, its characterized in that: the shell comprises a first shell and a second shell, a shell sealing element and a clamping area are arranged between the first shell and the second shell, the first shell and the second shell are mutually and hermetically clamped through the matching of the shell sealing element and the clamping area, and an accommodating cavity is formed inside the shell; the electronic component assembly is fixedly arranged in the accommodating cavity; the power line is electrically connected with the electronic element assembly and is provided with a connecting end head, the middle part of the connecting end head is provided with a power supply sealing element, and the inner end of the connecting end head is provided with a clamping groove; the first shell is provided with a connecting hole; a clamping buckle is integrally arranged on the second shell; the connecting end is arranged on the connecting hole in a penetrating way, and the clamping groove of the connecting end extends into the accommodating cavity; the second shell is arranged on the clamping groove in a clamping and buckling mode during assembly, and drives the connecting end to extrude towards the connecting hole to act on the power supply sealing element, so that sealing connection between the connecting end and the connecting hole is achieved.

The buckling areas respectively comprise buckling parts arranged on the first shell and buckling matching parts arranged on the second shell; the second shell cover is arranged on the first shell and buckled on the buckling matching part through the buckling part.

The first shell is provided with an assembling groove; the second shell is provided with a positioning edge; the plurality of buckling parts are arranged and are arrayed on the inner wall of the first shell at intervals; the plurality of buckle matching parts are arranged on the positioning edge at intervals; the outer side of the positioning edge is also provided with a pressing edge which is obliquely arranged; the shell sealing element is positioned on the assembling groove; the second shell is pressed on the shell sealing element through the inclined pressing edge during assembly, so that the first shell and the second shell are in sealing buckling connection.

A groove is formed between the positioning edge and the pressing and connecting edge; the first shell is provided with an outer convex edge and an inner convex edge; the assembling groove is formed between the outer convex edge and the inner convex edge; the buckling part is a convex buckle and is arranged on the inner wall of the inner convex edge; the buckle matching part is a buckle hole and is arranged on the positioning edge.

The pressing edge extends into the assembling groove and is extruded to act on the shell sealing element; the inner convex edge extends into the groove; wherein, the positioning edge, the inner convex edge, the pressing edge and the outer convex edge are mutually positioned and depend or are in clearance fit.

And a fastener is further arranged between the first shell and the second shell, and the first shell and the second shell are fastened and connected through the fastener after being fastened and sealed.

An inclined guide position is arranged on the clamping groove; the clamping buckle is provided with an inclined guide matching position; the second casing is buckled the card through the joint and is established on the joint groove to guide through slope guide cooperation position when the card is established and act on slope guide position, with the drive connection end towards the direction extrusion of connecting hole and act on power sealing member.

The connecting end and the connecting hole are respectively in an oval shape; the two clamping grooves are symmetrically arranged on the left side and the right side of the long size of the inner end of the connecting end head; the joint is buckled and is provided with two, just integrative setting in second casing bottom of symmetry formula.

A positioning groove is also arranged between the clamping grooves at the left side and the right side, the positioning groove is positioned at the top of the inner end of the connecting end head, and the left end and the right end of the positioning groove are respectively communicated with the upper parts of the clamping grooves at the left side and the right side; and a positioning step is further arranged between the clamping buckles at the left side and the right side, the lower part of the positioning step is positioned and acted on the positioning groove, and the upper part of the positioning step is positioned and depends on or is in clearance fit with the top of the inner end of the connecting end.

An oval extending through hole is formed towards the outer side of the connecting hole; a first extrusion groove and a second extrusion groove are formed in the middle of the connecting end head, and are sequentially located behind the clamping groove; the power seal comprises a first power seal and a second power seal; the first power seal is positioned on the first extrusion slot and the second power seal is positioned on the second extrusion slot.

The connecting end is nested in the extending through hole, and the clamping groove of the connecting end penetrates through the first shell and extends into the accommodating cavity; when the second shell is clamped, the second shell acts on the inclined guide position through the guide of the inclined guide matching position and drives the connecting end to move towards the direction of the connecting hole; the connection end movably extrudes the first power supply sealing element and the second power supply sealing element on the inner wall of the extending through hole through the first extrusion groove and the second extrusion groove respectively so as to realize the sealing connection between the connection end and the connection hole.

Through the improvement of the structure, the utility model has the following advantages:

1. utilize the cooperation in casing sealing member, buckle region, make and to realize mutual sealed knot between first casing and the second casing and establish, because the regional low in production cost of buckle, processing is easy, consequently not only can reduce cost, but also can simplify the assembly process between first casing and the second casing, the two assembly of being convenient for has utilized casing sealing member's sealed effect simultaneously, makes first casing and second casing can play effectual water-proof effects after the assembly.

2. First casing and second casing are detained each other and are established the back and recycle the fastener and carry out final fastening connection to improve the assembly steadiness between first casing and the second casing, in order to avoid power adapter to appear because of dropping, receiving the circumstances such as striking when using, lead to first casing, second casing to appear loosening after the assembly, or break away from, cause the problem that the holding chamber was intake, in order to ensure that electron component can be long-term, stable work.

3. The shell sealing element can be extruded and deformed during assembly, so that a gap between the first shell and the second shell can be effectively filled, and the sealing effect between the first shell and the second shell is improved.

4. The connecting end and the connecting hole are respectively arranged to be oval, so that the connecting end cannot rotate when penetrating through the connecting hole, and the assembly stability of the connecting end is improved; moreover, because the connection end is oval, when the joint groove is arranged on the connection end, the setting depth of the joint groove can be improved, so that the structural strength of the joint groove is enhanced, the joint buckle can be stably clamped on the joint groove, and the assembly stability of the joint buckle and the joint groove is improved.

5. The clamping buckle is integrally arranged on the second shell, so that the number of components is reduced, the production cost is reduced, when the sealing cover of the second shell is arranged on the first shell, the assembly of the connecting end can be completed, the assembly process is reduced, and the production efficiency is improved;

6. be provided with the slope guide position of mutual guide between joint groove and the joint is detained, slope guide cooperation position, the joint is detained and is established through slope guide position when the joint groove, the cooperation drive of slope guide cooperation position is connected the end and is moved towards the direction of connecting hole, and the extrusion is on power sealing element, make power sealing element warp, and sealed effect is between connecting end and connecting hole, take off or the gap problem appears in order to avoid connecting end and connecting hole assembly back effectively, thereby assembly steadiness and waterproof nature between connecting end and the connecting hole are improved to the at utmost.

7. The power supply sealing parts are arranged in two numbers, and can be extruded and deformed during assembly, so that gaps between the connecting end heads and the connecting holes can be effectively filled, and the sealing effect between the connecting end heads and the connecting holes is improved.

Comprehensively, it has simple structure reasonable, low in manufacturing cost, and the assembly is convenient, and production efficiency is high, and sealed effectual and use characteristics such as safe, reliable, the practicality is strong.

Drawings

Fig. 1 is an exploded view of an embodiment of the present invention.

Fig. 2 is a schematic view of an assembly structure according to an embodiment of the present invention.

Fig. 3-5 are sectional structural views illustrating assembly according to an embodiment of the present invention.

Fig. 6 is an enlarged schematic view of a portion a in fig. 3.

Fig. 7 is an enlarged schematic view of a portion B in fig. 4.

Fig. 8 is an enlarged schematic view of the structure at C in fig. 5.

Fig. 9 and 10 are schematic structural views of a second housing according to an embodiment of the utility model.

Fig. 11 is an enlarged schematic view of fig. 9 at D.

Fig. 12 is an enlarged schematic view of a structure at E in fig. 10.

Fig. 13 and 14 are schematic views of a connection end structure according to an embodiment of the utility model.

Detailed Description

The utility model is further described with reference to the following figures and examples.

Referring to fig. 1-14, the stable assembly structure of the power adapter includes an outer housing, an electronic component assembly 20 and a power cord; the outer shell comprises a first shell 3 and a second shell 4, a shell sealing element 21 and a buckling area are arranged between the first shell 3 and the second shell 4, the two are mutually and hermetically buckled through the matching of the shell sealing element 21 and the buckling area, and an accommodating cavity 22 is formed inside the two; the electronic component assembly 20 is fixedly arranged in the accommodating cavity 22; the power line is electrically connected with the electronic component assembly 20 and is provided with a connecting end head 1, the middle part of the connecting end head 1 is provided with a power supply sealing element, and the inner end of the connecting end head is provided with a clamping groove 2; the first shell 3 is provided with a connecting hole 5; the second shell 4 is integrally provided with a clamping buckle 6; the connecting end 1 is arranged on the connecting hole 5 in a penetrating way, and the clamping groove 2 of the connecting end extends into the accommodating cavity 22; second casing 4 is established on joint groove 2 through joint 6 card when the assembly to drive connection end 1 towards the direction extrusion of connecting hole 5 and act on power sealing element, in order to realize the sealing connection between connection end 1 and the connecting hole 5.

Utilize casing sealing member 21, the regional cooperation of buckle, make and to realize mutual sealed knot between first casing 3 and the second casing 4 and establish, because the regional low in production cost of buckle, easy processing, consequently, not only can reduce cost, when the assembly, only need aim at the buckle region between first casing 3 and the second casing 4, carry out mutual lock joint again and can accomplish the assembly between first casing 3 and the second casing 4, thereby simplify the two assembly process, be convenient for the assembly of the two, the sealed effect of casing sealing member 21 has been utilized simultaneously, make first casing 3 and second casing 4 can play effectual water-proof effects after the assembly.

Specifically, the snap areas include a snap portion 23 provided on the first housing 3, a snap-fit portion 24 provided on the second housing 4, respectively; the second housing 4 is covered on the first housing 3 and is fastened on the fastening matching part 24 through the fastening part 23.

The first shell 3 is provided with an assembling groove 25; the second shell 4 is provided with a positioning edge 26; the buckling parts 23 are arranged in a plurality and are arrayed on the inner wall of the first shell 3 at intervals; the snap-fit parts 24 are arranged in a plurality and are arranged on the positioning edges 26 at intervals; a pressing edge 27 is further arranged on the outer side of the positioning edge 26, and the pressing edge 27 is obliquely arranged; the housing seal member 21 is positioned and arranged on the fitting groove 25; during assembly, the second housing 4 is pressed against the housing seal 21 by the inclined press-fit edge 27, so that a sealing connection between the first housing 3 and the second housing 4 is achieved.

The case seal 21 can be pressed and deformed during assembly, so that the gap between the first case 3 and the second case 4 can be effectively filled, and the sealing effect between the first case 3 and the second case 4 can be improved.

A groove 28 is formed between the positioning edge 26 and the pressing edge 27; the first shell 3 is provided with an outer convex edge 29 and an inner convex edge 30; the fitting groove 25 is formed between the outer flange 29 and the inner flange 30; the buckling part 23 is a convex buckle and is arranged on the inner wall of the inner convex edge 30; the snap-fit portion 24 is a snap hole and is disposed on the locating edge 26.

When the first shell 3 is assembled with the second shell 4, the pressing connecting edge 27 extends into the assembling groove 25 and presses and acts on the shell sealing element 21; the inner convex edge 30 extends into the groove 28, so that a double-layer concave-convex assembly relationship can be formed between the first shell 3 and the second shell 4, and the assembly stability and the waterproofness of the two are improved; the positioning edge 26, the inner flange 30, the pressing edge 27 and the outer flange 29 are positioned and depend on each other or are in clearance fit with each other, and in the embodiment, the positioning edge 26, the inner flange 30, the pressing edge 27 and the outer flange 29 are preferably positioned and depend on each other, so that a gap between the first shell 3 and the second shell 4 can be reduced, and the waterproofness and the connection compactness of the first shell 3 and the second shell 4 are further improved.

A fastener 31 is further arranged between the first housing 3 and the second housing 4, and the two are fastened and connected by the fastener 31 after being sealed and fastened. First casing 3 and second casing 4 detain each other promptly and establish the back and recycle fastener 31 and carry out final fastening connection, thereby improve the assembly steadiness between first casing 3 and the second casing 4, in order to avoid power adapter to appear because of dropping, receiving the condition such as striking when using, lead to first casing 3, second casing 4 to appear loosening after the assembly, or break away from, cause the problem that holding chamber 22 intake, in order to ensure that the electron component can be long-term, stable work.

The clamping groove 2 is provided with an inclined guide position 7; the clamping buckle 6 is provided with an inclined guide matching position 8; second casing 4 is buckled 6 cards through the joint and is established on joint groove 2 to through the slope guide cooperation position 8 direction effect when the card is established on slope guide position 7, with the drive connection end 1 towards the direction extrusion of connecting hole 5 and act on power supply seal spare.

The connecting end 1 and the connecting hole 5 are respectively in an oval shape; the two clamping grooves 2 are symmetrically arranged on the left side and the right side of the long dimension of the inner end of the connecting end 1; the clamping buckle 6 is provided with two symmetrical integrated parts arranged at the bottom of the second shell 4. Control two joint buckles 6 with control two joint grooves 2 mutual joint, can further improve the assembly stability of connecting end 1, prevent to connect the problem that the pine takes off after 1 assembly of end.

In the embodiment, the connecting end 1 and the connecting hole 5 are respectively arranged in an oval shape, so that the connecting end 1 cannot rotate when penetrating through the connecting hole 5, and the assembly stability of the connecting end 1 is improved; moreover, as the connecting end 1 is oval, when the clamping groove 2 is arranged on the connecting end 1, the arrangement depth of the clamping groove 2 can be improved so as to enhance the structural strength of the clamping groove, so that the clamping buckle 3 can be stably clamped on the clamping groove 2, and the assembly stability of the clamping groove and the clamping buckle is improved; moreover, the clamping buckle 3 is integrally arranged on the second shell 4, so that the number of components is reduced, the production cost is reduced, when the second shell 4 is sealed and arranged on the first shell 3, the assembly of the connecting end 1 can be completed, the assembly process is reduced, and the production efficiency is improved; simultaneously, be provided with the guide area between joint groove 2 and the joint is detained 6, joint is detained 6 and can be connected end 1 through the direction activity towards connecting hole 5 of guide area drive when establishing on joint groove 2, and the extrusion is used on power sealing element, make power sealing element warp, and sealed effect is between connecting end 1 and connecting hole 5, take off or the gap problem appears after avoiding connecting end 1 and connecting hole 5 assembly effectively, thereby improve assembly steadiness and waterproof nature between connecting end 1 and the connecting hole 5 to the at utmost.

The inclination angle of the inclined guide position 7 corresponds to that of the inclined guide matching position 8, and the inclined guide positions and the inclined guide matching position can play a good guide driving role in matching.

In the embodiment, the back side surface of the clamping groove 2 is basically vertically arranged, and the clamping groove 2 with the upper size larger than the lower size is formed between the back side surface of the clamping groove 2 and the inclined guide position 7; wherein, the clamping groove 2 is arranged in a vertical penetrating way; the outer side surface of the clamping buckle 6 is basically vertically arranged, and the clamping buckle 6 with the upper size larger than the lower size is formed between the clamping buckle 6 and the inclined guide matching position 8.

The clamping groove 2 with large upper part size and small lower part size can facilitate the insertion and clamping of the clamping buckle 6, and the assembly process is simplified.

A positioning groove 9 is also arranged between the clamping grooves 2 at the left side and the right side, the positioning groove 9 is positioned at the top of the inner end of the connecting end 1, and the left end and the right end of the positioning groove 9 are respectively communicated with the upper parts of the clamping grooves 2 at the left side and the right side; still be provided with location step 10 between the joint knot 6 of left and right sides, location step 10 lower part location is acted on constant head tank 9, and upper portion relies on or clearance fit with the inner top location of connection end 1. Namely, after the connecting end 1 is assembled, the left side, the right side and the top of the connecting end can be positioned, and the assembling stability of the connecting end 1 is further improved.

An oval extending through hole 11 is formed in the connecting hole 5 towards the outer side; a first extrusion groove 12 and a second extrusion groove 13 are formed in the middle of the connecting end head 1, and the first extrusion groove 12 and the second extrusion groove 13 are sequentially located behind the clamping groove 2; the power seals include a first power seal 14 and a second power seal 15; the first power seal 14 is positioned on the first extrusion groove 12 and the second power seal 15 is positioned on the second extrusion groove 13. The dual-power sealing piece can achieve a very good sealing effect between the connecting end head 1 and the connecting hole 5.

The connecting end 1 is nested in the extending through hole 11, and the clamping groove 2 of the connecting end penetrates through the first shell 3 and extends into the accommodating cavity 22; when the second shell 4 is clamped, the second shell is guided to act on the inclined guide position 7 through the inclined guide matching position 8, and drives the connecting end head 1 to move towards the connecting hole 5; the connecting end head 1 movably extrudes a first power supply sealing element 14 and a second power supply sealing element 15 on the inner wall of the extending through hole 11 through a first extrusion groove 12 and a second extrusion groove 13 respectively so as to realize the sealing connection between the connecting end head 1 and the connecting hole 5.

In order to improve the deformation effect of the first power supply sealing member 14 and/or the second power supply sealing member 15, the inner wall of the extended through hole 11 is provided with a pressing action surface 16 corresponding to the first power supply sealing member 14 and/or the second power supply sealing member 15; the first power seal 14 is sealingly compressed between the first pressing groove 12 and the pressing surface 16, and/or the second power seal 15 is sealingly compressed between the second pressing groove 13 and the pressing surface 16.

The preferred extension through-hole 11 inner wall of this embodiment corresponds first power sealing member 14 and second power sealing member 15 and all is provided with the extrusion face 16, and extension through-hole 11 inner wall is the slope setting of expanding outward promptly, can extrude first power sealing member 14 and second power sealing member 15 respectively after connecting end 1 assembles, and is rational in infrastructure.

The foregoing is a preferred embodiment of the present invention, and the basic principles, principal features and advantages of the utility model are shown and described. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the present invention, but various changes and modifications may be made without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.

Claims

1. A firm assembly structure of power adapter, includes shell body, electron unit ware subassembly (20) and power cord, its characterized in that: the shell comprises a first shell (3) and a second shell (4), a shell sealing element (21) and a buckling area are arranged between the first shell (3) and the second shell (4), the first shell and the second shell are mutually and hermetically buckled through the matching of the shell sealing element (21) and the buckling area, and an accommodating cavity (22) is formed inside; the electronic component assembly (20) is fixedly arranged in the accommodating cavity (22); the power line is electrically connected with the electronic component assembly (20), a connecting end (1) is arranged on the power line, a power sealing element is arranged in the middle of the connecting end (1), and a clamping groove (2) is formed in the inner end of the connecting end; a connecting hole (5) is formed in the first shell (3); a clamping buckle (6) is integrally arranged on the second shell (4); the connecting end (1) is arranged on the connecting hole (5) in a penetrating manner, and the clamping groove (2) of the connecting end extends into the accommodating cavity (22); second casing (4) are established on joint groove (2) through joint knot (6) card when the assembly to drive connection end (1) towards the direction extrusion of connecting hole (5) and act on power sealing element, with the sealing connection between realization connection end (1) and connecting hole (5).

2. The structure for firmly assembling a power adapter according to claim 1, wherein: the buckling areas respectively comprise buckling parts (23) arranged on the first shell (3) and buckling matching parts (24) arranged on the second shell (4); the second shell (4) is covered on the first shell (3) and is buckled on the buckling matching part (24) through the buckling part (23).

3. The structure for firmly assembling a power adapter according to claim 2, wherein: an assembly groove (25) is formed in the first shell (3); the second shell (4) is provided with a positioning edge (26); the buckling parts (23) are arranged in a plurality and are arrayed on the inner wall of the first shell (3) at intervals; the plurality of the snap-fit parts (24) are arranged and are arrayed on the positioning edge (26) at intervals; a pressing and connecting edge (27) is further arranged on the outer side of the positioning edge (26), and the pressing and connecting edge (27) is obliquely arranged; the shell sealing member (21) is positioned and arranged on the assembling groove (25); the second housing (4) is pressed against the housing seal (21) by the inclined press-fit edge (27) during assembly, in order to achieve a sealing connection between the first housing (3) and the second housing (4).

4. The structure for firmly assembling a power adapter according to claim 3, wherein: a groove (28) is formed between the positioning edge (26) and the pressing edge (27); the first shell (3) is provided with an outer convex edge (29) and an inner convex edge (30); the assembly groove (25) is formed between the outer convex edge (29) and the inner convex edge (30); the buckling part (23) is a convex buckle and is arranged on the inner wall of the inner convex edge (30); the snap-fit part (24) is a buckle hole and is arranged on the positioning edge (26);

the press-fit edge (27) extends into the assembly groove (25) and presses against the housing seal (21); the inner convex edge (30) extends into the groove (28); wherein, the positioning edge (26), the inner convex edge (30), the press connecting edge (27) and the outer convex edge (29) are mutually positioned and depend or are in clearance fit.

5. The structure for firmly assembling a power adapter according to claim 1, wherein: and a fastener (31) is further arranged between the first shell (3) and the second shell (4), and the first shell and the second shell are fastened and connected through the fastener (31) after being fastened in a sealing manner.

6. The structure for firmly assembling a power adapter according to claim 1, wherein: an inclined guide position (7) is arranged on the clamping groove (2); the clamping buckle (6) is provided with an inclined guide matching position (8); second casing (4) are buckled (6) card through the joint and are established on joint groove (2) to guide through slope guide cooperation position (8) when the card is established and act on slope guide position (7) to drive connection end (1) towards the direction extrusion of connecting hole (5) and act on the power sealing spare.

7. The structure for securely assembling a power adapter according to claim 6, wherein: the connecting end (1) and the connecting hole (5) are respectively in an oval shape; the two clamping grooves (2) are symmetrically arranged on the left side and the right side of the long size of the inner end of the connecting end head (1); the clamping buckle (6) is provided with two symmetrical integrated parts arranged at the bottom of the second shell (4).

8. The structure for securely assembling a power adapter according to claim 7, wherein: a positioning groove (9) is also arranged between the clamping grooves (2) at the left side and the right side, the positioning groove (9) is positioned at the top of the inner end of the connecting end head (1), and the left end and the right end of the positioning groove are respectively communicated with the upper parts of the clamping grooves (2) at the left side and the right side; still be provided with location step (10) between the joint knot (6) of left and right sides, location step (10) lower part location is used in on constant head tank (9), upper portion and connection end (1) inner top location rely on or clearance fit.

9. The structure for securely assembling a power adapter according to claim 7, wherein: an oval extending through hole (11) is formed in the connecting hole (5) towards the outer side; a first extrusion groove (12) and a second extrusion groove (13) are formed in the middle of the connecting end head (1), and the first extrusion groove (12) and the second extrusion groove (13) are sequentially located behind the clamping groove (2); the power seal comprises a first power seal (14) and a second power seal (15); the first power supply seal (14) is positioned on the first extrusion groove (12), and the second power supply seal (15) is positioned on the second extrusion groove (13).

10. The structure for securely assembling a power adapter according to claim 9, wherein: the connecting end (1) is nested in the extending through hole (11), and the clamping groove (2) of the connecting end penetrates through the first shell (3) and extends into the accommodating cavity (22); the second shell (4) is guided to act on the inclined guide position (7) through the inclined guide matching position (8) when being clamped, and drives the connecting end head (1) to move towards the direction of the connecting hole (5); the connection end head (1) is movably connected with the inner wall of the extension through hole (11) in a manner that a first power supply sealing element (14) and a second power supply sealing element (15) are extruded through a first extrusion groove (12) and a second extrusion groove (13) respectively so as to realize the sealing connection between the connection end head (1) and the connection hole (5).