Fixed Adapter Hook

Abstract

Provision of fixed adapter hooker. [Solution] The present invention provides a fixed adapter hook, which is assembled by placing a thin electrical appliance mainly through the hook outer ring, and then the assembly of the hook and the thin electrical appliance is screwed into two rotating grooves pre-installed in the corresponding high mounting site through two hooks to achieve fitting and power conduction. In this process, the extendable buckle post also enters and stays in the positioning hole pre-installed in the mounting site, so that the whole assembly cannot be reversely rotated and withdrawn from the mounting site. When removing the assembly, the buckle post is first pushed to withdraw from the positioning hole, and then the two hook parts are reversed to withdraw from the two rotating grooves, so that the assembly of the hook and the thin electrical appliance can be removed from the high mounting site as a whole.

Description

Technical Field

[0001] The present invention relates to a kind of hook, especially a kind of fixed adapter hook with a simplified mechanism and convenient use.

Background Art

[0002] A fixed adapter hook is a kind of equipment installed at a fixed position at a high place (such as the ceiling), called an "adapter hook" or a "hook", which is electrically connected to the main power supply, and then a suspended electrical appliance (such as a suspended lamp panel) is connected and electrically connected. The applicant of the present application has previously received registrations of Taiwan Utility Models No. 3173885, 3174448, 3186810, 3192866, and 3225152. The above-mentioned utility models are suitable for use in suspended lighting panels, but when used in shallow lamps (such as ceiling lamps), it is necessary to simplify the mechanism so that it is more convenient to use together. In view of the needs of ceiling lamps, the present invention conducts research and development and provides a fixed adapter hook with a simpler mechanism and easy operation.

Summary of the Invention

Problems to be Solved by the Invention

[0003] In view of the above problems, the main object of the present invention is to provide a fixed adapter hook with a simple mechanism and convenience, especially suitable for the use of ceiling lamps.

Means for Solving the Problems

[0004] To achieve the above object, the present invention creates a fixed adapter hook composed of a substrate, a guide mechanism, a hook mechanism, a buckle mechanism, and a cover. The substrate is divided into an outer ring and an inner disk slightly higher than the outer ring, and there are at least two perforation grooves in the outer ring. The guide mechanism is formed within the range of the bottom surface of the inner disk, arranged by a group of bending walls and locking walls, and forms a bending channel. After entering due to the vertical arrangement of the two bending walls forming the bending channel, next, due to the bending of the two bending walls, the locking wall is separated to form an exit to the left and right side passages. After the bending channel exits into the left and right passages, flat spaces are separated by respective continuous groups of vertical walls, and downward passages are drilled in the flat spaces. On the outside of the flat spaces, through grooves leading upward are respectively provided, and on the bottom surface of the inner disk, several fitting walls are vertically arranged outside the range around the guide mechanism. The hook mechanism is composed of a group of conducting wires and a group of hook members. One end of each group of conducting wires is a bare wire end, and the other end is bent and connected to the group of hook members one-to-one. The hook member is composed of a connecting plate, a vertical plate, and a hook part. The connecting plate is directly connected to the non-bare wire end of the conducting wire, a perforation is formed in the connecting plate, the vertical plate is bent upright at the outer end of the connecting plate, and the tail end of the vertical plate is bent inward to form the hook part. When assembling, the conducting wire is arranged in the bending channel formed by the separation of the two bending walls. The bent end of the conducting wire is bent along the bending channel, the connecting plate is arranged in the flat space separated by the two vertical walls, and the perforation of the connecting plate corresponds to the perforation in the flat space. At the same time, the vertical plate protrudes from the through groove so that the hook part protrudes a short distance above the upper surface of the inner disk, and the perforation in the flat space is connected to the perforation of the connecting plate through a connecting member. The buckle mechanism is composed of a receiving groove, a pressing member, and a buckle member. The receiving groove is formed within the range of the bottom surface of the inner disk, and the space is surrounded by a plurality of vertical walls. An opening is formed at an adjacent position between the receiving groove and the outer ring of the substrate by two locking posts on the left and right. There is a through hole on the inner surface of the receiving groove, and there is a pressing block on the pressing member. The pressing block protrudes from the opening, and both sides are locked by the corresponding locking posts of the locking walls and cannot protrude from the opening. An inclined wall is provided on the back surface of each locking wall at the rear end of the pressing block. A hole groove for accommodating an elastic member is arranged on the buckle member body. Inclined walls are arranged on both sides corresponding to the surfaces of the two inclined walls, and there is a buckle support protruding from the surface on the opposite side of the opening. When assembling, the inclined wall of the buckle member is attached corresponding to the inclined wall of the pressing member, and then the pressing member and the buckle member are arranged within the space range of the receiving groove. The pressing block is made to protrude from the opening, and the locking walls on both sides of the pressing block are locked according to the locking posts of the receiving groove. At the same time, the buckle support of the buckle member extends from the receiving groove and penetrates the through hole. The opening of the cover faces upward, and the position of the opening corresponding to the receiving groove on the cover is ensured to be an opening. The main buckle is arranged at the position of the fitting wall corresponding to the guide mechanism on the cover. Also, a through groove is arranged in the path of the wire corresponding to the hook mechanism, and a pressing strip is arranged flat at a position higher than the through groove. The cover is directed towards the guide mechanism during assembly. In the process of covering the space where the hook mechanism and the buckle mechanism exist, the wire of the hook mechanism passes through the through groove of the cover. Next, the pressing strip supports the wire, and each main buckle of the cover simultaneously buckles to each buckle wall of the corresponding guide mechanism, and the opening of the cover surrounds the pressing strip.

[0005] In the fixed adapter hook, on the inner wall upper ends near the access inlet end and the access outlet end of the bending channel, there are formed slightly protruding limiting protrusion blocks, and spaces are formed at the access inlet end and the access outlet end between the two limiting protrusion blocks, and the distance between the two limiting protrusion blocks is narrower than that of the bending channel.

[0006] In the fixed adapter hook, on the back surfaces of the two locking posts of the buckle mechanism, there are respectively provided a positioning hole and a vertical tenon, and on the lower edge of the front end of the opening of the cover, there are provided two locking blocks. At the positions corresponding to the positioning holes on the inner walls of the two locking blocks, there are respectively protruding positioning blocks, and buckles are respectively arranged at positions corresponding to the tenons. When assembling, each positioning block of the cover corresponds to each positioning hole and completes the abutment. Each buckle of the cover completes the fitting of the tenon in the corresponding receiving groove, and each locking block of the cover forms an abutment with each locking post in the corresponding receiving groove.

[0007] Hereinafter, according to the technical means of the present invention, embodiments suitable for the present invention will be listed, and the following description will be made in conjunction with the drawings.

Effect of the Invention

[0008] The fixed adapter hook of the present invention is mainly used for mounting and assembling thin electrical appliances on the outer ring. The assembly of the hook and the thin electrical appliance is screwed into two rotation grooves preset at high installation sites corresponding to the two hook parts. The two hook parts and the two rotation grooves are correspondingly fitted to conduct electricity. In this process, the telescopic buckle strut is used to align with the positioning hole preset at the installation site, so that the assembly of the hook and the thin electrical appliance cannot reverse-rotate and separate from the installation site. When removing the assembly of the hook and the thin electrical appliance, first push the buckle strut and retract it from the positioning hole, reverse-rotate the two hook parts and retract them from the two grooves, and the assembly of the hook and the thin electrical appliance can be removed from the high installation site as a whole. The structure of this invention is rationalized, the operation is very convenient, and it is practical and progressive.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Modes for Carrying Out the Invention

[0010] To better understand the features and technical content of this invention, the following detailed description of this invention and the accompanying drawings should be referred to. However, the drawings are provided for reference and explanation and do not limit this invention.

[0011] The present invention is a fixed adapter hook, particularly a fixed adapter hook suitable for use in thin electrical appliances (such as ceiling lights). Refer to FIGS. 1 to 4. It has a structure composed of a substrate 10, a guide mechanism 20, a hook mechanism 30, a buckle mechanism 40, and a cover 50. The substrate 10 is disc-shaped and made of a non-conductive material. Structurally, it is distinguished into an outer ring 11 and an inner disc 12, and the inner disc 12 is 1 microstep higher than the outer ring 11 (see FIG. 1). At least two perforated grooves 13 are provided on the outer ring 11, and particularly three are suitable (see each figure). When viewed from the top-down angle, this perforated groove 13 is in a porous state (see FIG. 1), and when viewed from the upward viewing angle, it is in a hexagonal perforated groove state (see FIG. 3), and a hexagonal nut 14 can be accommodated to enter the hexagonal hole groove and stay accordingly. And this perforated groove 13 penetrates from bottom to top and can be used for a connecting member 141 fitted with this hexagonal nut 14. Positioning posts are vertically arranged on the outer ring 11.

[0012] As shown in FIGS. 3, 4, and 7, the guide mechanism 20 is formed within the range of the bottom surface of the inner disc 12, and the element numbers are shown in FIG. 4. The guide mechanism 20 mainly constitutes a bending channel 23 by the arrangement of a set of bending walls 21 and locking walls 22. After entering the passage formed by the two bending walls 21 being arranged and separated up and down, the two bending walls 21 are curved, and then it is formed by the flow path formed, and then, after the two bending walls 21 are bent, a flow path separated by the locking wall 22 and passing left and right is formed. Refer to FIG. 6. The bending channel 23 is formed with limiting protrusion blocks 24 slightly protruding on the inner walls near the upper ends of the inlet and outlet ends. The distance between the two limiting protrusion blocks 24 is clearly narrower than the bending channel 23. After the bending channel 23 is passed to the passages on both the left and right sides, a flat space is continuously separated by each set of vertical walls 25. This flat space has a perforation 26 for a downward outlet, and then, a through groove 27 for an upward passage is formed outside this flat space. A number of fitting walls 28 are provided on the bottom surface of the inner disc 12 outside the range around the guide mechanism 20, and particularly it is appropriate to arrange five of them.

[0013] As shown in FIGS. 3 and 7, the hook mechanism 30 is composed of a set of lead wires 31 and a set of hook members 32. One end of the lead wire 31 is a bare wire end 311, and the other end is directly connected to the hook member 32 one-to-one after being bent. The hook member 32 consists of a connecting plate 321, a vertical plate 322, and a hook portion 323. The connecting plate 321 is directly electrically connected to the non-bare wire end of the lead wire 31. A perforation 324 is formed in the connecting plate 321. At the outer end of this connecting plate 321, the vertical plate 322 is vertically bent, and the tail end of the vertical plate 322 is bent inward to form the hook portion 323. During assembly, the lead wire 31 needs to be placed on the bending channel 23 formed by the two bending walls 21 and pushed forcefully through the restraint of the two limiting projection blocks 24 (see FIG. 6). Similarly, after the bent end of the lead wire 31 is bent along the bending channel 23, it will also push through the restraint of the two limiting projection blocks 24, thereby restricting the lead wire 31 from coming out again. At this time, the connecting plate 321 is separated by the two vertical walls 25 and accurately arranged in a flat space. The perforation 324 of the connecting plate 321 corresponds to the perforation 26 in the flat space. At the same time, the vertical plate 322 only extends through the through groove 27 so that the hook portion 323 projects a short distance above the upper surface of the inner disk 12. Then, through a connecting member 33 such as a rivet, after passing through, the perforation 26 is connected to the perforation 324, and the hook mechanism 30, the guide mechanism 20, and the substrate 10 are assembled (see FIG. 7).

[0014] As shown in FIGS. 3, 4, and 7, the buckle mechanism 40 includes a receiving groove 41, a pressing member 42, and a buckle member 43. As shown in FIG. 4, the receiving groove 41 is formed within the range of the bottom surface of the inner disk 12. The receiving groove 41 is surrounded by a plurality of vertical walls to enclose a space for accommodation. The adjacent position between the receiving groove 41 and the outer ring 11 of the substrate 10 has an opening 412 defined by two locking posts 411 on the left and right. A through hole 413 is formed on the inner surface of the receiving groove 41, and a positioning hole 414 and a tenon 415 are respectively arranged on the rear sides of the two locking posts 411. As shown in FIG. 3, the pressing member 42 has a pressing block 421. The pressing block 421 protrudes from the opening 412, and both sides are locked by the corresponding locking posts 411 by the locking walls 422 respectively, so that the pressing block 421 does not come out of the opening 412. On the rear end of the pressing block 421, inclined walls 423 are respectively provided on the back side of each locking wall 422. A groove 431 for accommodating the elastic member 432 is formed in the buckle member 43 body. Inclined walls 433 are arranged on both sides corresponding to the surfaces of the two inclined walls 423, and a buckle support 434 protrudes from the opposing surface of the opening 412. During assembly, the inclined wall 433 of the buckle member 43 is attached corresponding to the inclined wall 423 of the pressing member 42, and the pressing member 42 and the buckle member 43 are jointly accommodated within the space range of the receiving groove 41, so that the pressing block 421 protrudes from the opening 412. Then, the locking walls 422 on both sides of the pressing block 421 are locked accordingly by the locking posts 411 of the receiving groove 41. At the same time, the buckle support 434 of the buckle member 43 penetrates through the through hole 413 of the receiving groove 41 and extends out (see FIG. 9). Then, the elastic member 432 is inserted into the groove 431 of the buckle member 43, and waits for further assembly later.

[0015] As shown in FIGS. 2, 3, and 5, the cover 50 is a cover body (see FIG. 5) having an upward opening, and has a wall that can face upward to surround the space range where the guide mechanism 20 and the buckle mechanism 40 are connected. The position of the opening 412 corresponding to the aforementioned accommodation groove 41 on the cover 50 is ensured to be the opening 51, and two locking blocks 511 are provided at the lower end of the front end of the opening 51. Buckles 512 are respectively provided on the inner wall of the two locking blocks 511 at the position of the tenons 415 corresponding to the accommodation groove 41, and positioning blocks 513 protrude at positions corresponding to the positioning holes 414. The cover 50 is provided with main buckles 52 at the positions of the fitting walls 28 corresponding to the guide mechanism 20. At the same time, the through groove 53 arranged in the recess and the pressing strip 54 arranged horizontally at a position higher than the through groove 53 are provided in the traveling route of the conducting wire 31 corresponding to the hook mechanism 30. When the hook mechanism 30 and the guide mechanism 20 are assembled and the buckle mechanism 40 is also assembled at the same time, the cover 50 is covered toward the space range where the guide mechanism 20, the hook mechanism 30, and the buckle mechanism 40 exist and is pushed slightly forcefully. At this time, the conducting wire 31 of the hook mechanism 30 is passed through the through groove 53 of the cover 50, and the pressing strip 54 only supports the conducting wire 31 and has the effect of helping to suppress the conducting wire 31 upward. At the same time, each main buckle 52 of the cover 50 is completed in fitting with each fitting wall 28 of the corresponding guide mechanism 20, and each positioning block 513 of the cover 50 is completed in abutment corresponding to each positioning hole 414. At the same time, each buckle 512 of the cover 50 is completed in fitting corresponding to each tenon 415 of the accommodation groove 41. Finally, each locking block 511 of the cover 50 forms an abutment with each locking post 411 of the corresponding accommodation groove 41, and the opening 51 of the cover 50 just wraps the pressing member 42, and the assembly as shown in FIGS. 1 and 2 is completed.

[0016] When in use, the fixed adapter hanger must first reach assembly and engagement with a thin electrical appliance (such as a ceiling light). As shown in FIG. 8, the thin electrical appliance has a ring disk 61 that can just span over the outer ring 11 of the fixed adapter hanger, and the outer ring 11 can form the effect of supporting the ring disk 61. Also, the thin electrical appliance is supported by the outer ring 11. The ring disk 61 has a perforation groove corresponding to the perforation groove 13 of the outer ring 11 and a positioning hole corresponding to the positioning post 15 of the outer ring 11. Since the number and position of the corresponding perforations are the same, when the ring disk 61 straddles the outer ring 11 of the fixed adapter hanger, the positioning hole of the ring disk 61 is sleeved on the positioning post 15 of the outer ring 11 to form a positioning effect. At the same time, the perforations of the ring disk 61 are juxtaposed with the perforation groove 13 of the outer ring 11. Thus, the connecting member 141 can pass through the perforations of the ring disk 61 and the perforation groove 13 of the outer ring 11 from top to bottom and reach engagement with the lower hexagonal nut 14. Next, insert the bare wire end 311 at the end of the conducting wire 31 into the power inlet slot of the thin electrical appliance, achieving the electrical connection between the thin electrical appliance and the hanger, and completing the assembly between the hanger and the thin electrical appliance (such as a ceiling lamp).

[0017] Finally, the assembly of the hook and the thin electrical appliance is installed at a fixed position at the height of the building, and the installed parts connected to the power supply are secured to the planned installation site of the building (not shown). Two electrically insulated rotating grooves are provided at the installation site. Since the two rotating grooves are conductive with the two poles of the power supply respectively, the assembly for holding the hook and the thin electrical appliance as a whole is screwed into the two rotating grooves by the two hook parts 323 respectively. Therefore, the two hook parts 323 and the two rotating grooves achieve fitting and power conduction. During the fitting process, the buckle strut 434 of the buckle member 43 first retracts downward into the through hole 413 of the accommodation groove 41 due to the pressure of the wall at the installation site (see Fig. 10). Then, when the two hook parts 323 complete correct fitting in the two rotating grooves, the buckle strut 434 corresponds to the positioning hole preset at the installation site. Therefore, the buckle strut 434 enters from the outside and stays inside the positioning hole (see Fig. 9). At this time, when it is desired to separate the whole hook from the installation site by reverse rotation, since the buckle strut 434 hits the positioning hole of the installation site, the reverse rotation action may be hindered. The state where the buckle strut 434 hits the positioning hole of the installation site has a safety effect that the assembly of the hook and the thin electrical appliance cannot be freely rotated from the installation site.

[0018] Regarding the integrated reverse rotation of the hook and the assembly of the thin electrical appliance to disengage from the installation site, first, the pressing block 421 of the pressing member 42 must be pressed first. As a result, the pressing block 421 moves radially along the receiving groove 41 as a whole. In this process, the two inclined walls 423 of the pressing block 421 promote the movement corresponding to the two inclined walls 433 of the buckle member 43. Since the buckle member 43 is restricted by the wall of the receiving groove 41, it can only move laterally by compressing the elastic member 432 and performing a straight-backward movement inward. That is, the buckle strut 434 of the buckle member 43 can only perform a straight movement, and the backward movement inward is within the through hole 413 of the receiving groove 41 (see Figure 10). At this time, the assembly of the hook and the thin electrical appliance can smoothly separate by reverse rotation from these two rotation grooves as a whole. Then, the assembly of the hook and the thin electrical appliance is removed from the installation site at the height of the building as a whole.

[0019] The above describes the structural configuration of the fixed adapter hook of the present invention, the assembly relationship with the thin electrical appliance in the present invention, and the installation of the assembly of the hook and the thin electrical appliance at the installation site at a high place in the building. However, the feature of the present invention lies in the structural configuration of the fixed adapter hook. The assembly relationship between the hook and the thin electrical appliance, and the assembly operation of the hook and the thin electrical appliance installed at the installation site at a high place in the building are only enhanced descriptions of the present invention and are not included in the features of the present invention.

[0020] From the above description, the fixed adapter hook of the present invention is mainly used after placing and assembling a thin electrical appliance on the outer ring. The assembly of the hook and the thin electrical appliance is screwed into two rotating grooves preset at high installation sites corresponding to the two hook parts. The two hook parts and the two rotating grooves are correspondingly fitted to conduct electricity. In this process, a telescopic buckle strut is used to align with the positioning hole preset at the installation site, so that the assembly of the hook and the thin electrical appliance cannot be separated from the installation site by reverse rotation. When removing the assembly of the hook and the thin electrical appliance, first push the buckle strut and retract it from the positioning hole, reverse-rotate the two hook parts to retract them from the two grooves, and the assembly of the hook and the thin electrical appliance can be removed from the high installation site as a whole. Compared with many previous cases, the structure of the present invention is rationalized, the operation is very convenient, and it is practical and progressive.

[0021] The above description is only a preferred embodiment of the present invention and does not limit the scope of the present invention. All modifications made using the description and the attached drawings of the present invention are also included in the scope of the present invention.

Explanation of Reference Numerals

[0022] 10 Substrate 11 Outer Ring 12 Inner Disk 13 Perforation Groove 14 Hexagonal Nut 141 Connecting Member 15 Positioning Post 20 Guide Mechanism 21 Bending Wall 22 Locking Wall 23 Bending Channel 24 Limiting Protrusion Block 25 Vertical Wall 26 Perforation 27 Through Groove 28 Fitting Wall 30 Hook Mechanism 31 Conductive Wire 311 Bare Wire End 32 Hook Member 321 Connecting Plate 322 Vertical plate 323 Hook part 324 Perforation 33 Connecting member 40 Buckle mechanism 41 Receiving groove 411 Locking post 412 Opening 413 Through hole 414 Positioning hole 415 Tenon 42 Pressing member 421 Pressing block 422 Locking wall 423 Inclined wall 43 Buckle member 431 Groove 432 Elastic member 433 Inclined wall 434 Buckle support 50 Cover 51 Opening 511 Locking block 512 Buckle 513 Positioning block 52 Main buckle 53 Through groove 54 Pressing strip 61 Ring disk

Claims

1. A fixed adapter hook includes a base plate, a guide mechanism, a hook mechanism, a buckle mechanism, and a cover. The base plate is divided into an outer ring and an inner disk that is slightly higher than the outer ring, and the outer ring has at least two perforated grooves; The guide mechanism is formed within the range of the bottom surface of the inner disk, and is arranged by a group of curved walls and locking walls to form a curved channel, the curved channel is entered by the vertical arrangement of the two curved walls, and then the two curved walls are curved and separated from the locking wall to form two passages on the left and right sides, the curved channel is separated from the left and right passages by the curve of the two curved walls, and the curved channel is separated from the left and right passages by the vertical walls of each successive group, and the flat spaces are formed with downward passage holes, and the outsides of the flat spaces are provided with through grooves leading upward, and several fitting walls are vertically arranged on the bottom surface of the inner disk outside the range of the periphery of the guide mechanism, the hook mechanism is composed of a group of conductors and a group of hook members, one end of the conductors of the group is a bare end, and the other end is bent and connected to the hook member of the group in a one-to-one manner, the hook member is composed of a connecting plate, a vertical plate and a hook portion, the connecting plate is directly connected to the non-bare end of the conductors, a perforation is formed in the connecting plate, the vertical plate is bent upright at the outer end of the connecting plate, and the tail end of the vertical plate is bent inward to form the hook portion, when assembled, the conductors are placed in a bent channel formed by the separation of the two bent walls, the bent end of the conductor is bent along the bent channel, the connecting plate is placed in a flat space divided by two vertical walls, the perforation of the connecting plate corresponds to the perforation in the flat space, and at the same time, the vertical plate protrudes from the through groove so that the hook portion protrudes a short distance on the upper surface of the inner disk, and the perforation in the flat space is connected to the perforation of the connecting plate through a connecting member; The buckle mechanism is composed of an accommodating groove, a pressing member, and a buckle member. The accommodating groove is formed within the range of the bottom surface of the inner disk, and the space is surrounded by a number of vertical walls. An opening is formed by two locking posts on the left and right adjacent between the accommodating groove and the outer ring of the base plate. The inner surface of the accommodating groove has a through hole. The pressing member has a pressing block, which protrudes from the opening. The locking walls on both sides are locked by the corresponding locking posts, and cannot come out of the opening. At the rear end of the pressing block, an inclined wall is provided on the back of each locking wall. a hole groove for accommodating an elastic member is arranged on the buckle member body, and inclined walls are arranged on both sides corresponding to the surfaces of the two inclined walls, and a buckle post protrudes from the surface opposite to the opening; when assembling, the inclined walls of the buckle member are attached corresponding to the inclined walls of the pressing member, and then the pressing member and the buckle member are arranged in the spatial range of the accommodating groove, and the pressing block is protruded from the opening, and the locking walls on both sides of the pressing block are locked according to the locking posts of the accommodating groove, and at the same time, the buckle post of the buckle member extends from the accommodating groove and passes through the through hole; a through-groove is disposed in the path of the conductor corresponding to the hook mechanism, and a pressure strip is disposed flat at a location higher than the through-groove; the cover is oriented toward the guide mechanism when assembled; in the process of covering the space where the hook mechanism and the buckle mechanism are present, the through-groove of the cover allows the conductor of the hook mechanism to pass through, and then the pressure strip supports the conductor; and at the same time, each main buckle of the cover completes the buckle on each corresponding buckle wall of the guide mechanism; and the opening of the cover surrounds the pressure strip.

2. The fixed adapter hook as described in claim 1, characterized in that a slightly protruding limiting protrusion block is formed near the upper end of the inner wall of the inlet end and outlet end of the bent channel, and the distance between the two limiting protrusion blocks is narrower than the bent channel.

3. The fixed adapter hook according to claim 1, characterized in that the backs of the two locking posts of the buckle mechanism are respectively provided with positioning holes and vertical tenons, two locking blocks are provided on the lower edge of the front end of the opening of the cover, positioning blocks protrude from the inner walls of the two locking blocks at locations corresponding to the positions of the positioning holes, and buckles are respectively disposed at positions corresponding to the tenons. When assembled, each positioning block of the cover completes abutment corresponding to each positioning hole, each buckle of the cover completes fitting with each tenon of the corresponding accommodating groove, and each locking block of the cover forms an abutment with each locking post of the corresponding accommodating groove.

Images