Plug and socket assembly

Abstract

The present invention provides a plug and socket assembly, comprising a plug and a socket; the plug comprises a first shell, a first permanent magnet and a first conductive contact arranged on the first shell; the socket comprises a second shell, a second conductive contact arranged on the second shell, a second permanent magnet, a conductive member and a power conductor are also arranged in the second shell, the second conductive contact is electrically connected to the conductive member, the conductive member is also connected to the second permanent magnet and can move with the second permanent magnet; the second permanent magnet is driven to move by the magnetic force between the first permanent magnet and the second permanent magnet, and then the conductive member is driven to move toward the power conductor and contact and conduct with the power conductor, so as to realize the electrical connection between the plug and the socket. The plug and socket assembly can realize electrical conduction only when the plug and the socket are in contact in a specific area, and has the advantages of convenient electrical connection between the plug and the socket and low leakage of the socket.

Description

Technical Field

[0001] The present invention relates to the field of plug and socket assemblies, and particularly to a plug and socket assembly. Background Art

[0002] At present, plugs and sockets have been widely used in all aspects of our lives. Existing sockets are provided with corresponding holes on the socket surface according to the number of polarities for conducting power, and conductive materials are placed in the holes. The plug is provided with fins of a certain length at positions corresponding to the holes preset on the socket according to the number of polarities for conducting power. When wanting to connect the power, the fins on the plug need to be aligned with the reserved holes on the socket. The plugs and sockets of the prior art mainly have the following defects: Since the plug needs to be aligned with the holes on the socket to insert the plug and conduct the power, it causes inconvenience in using the socket and the plug in the dark or places where the eyes cannot see.

[0003] In view of this, it is necessary to provide a new type of plug and socket assembly to solve or at least alleviate the above technical defects. Summary of the Invention

[0004] The main object of the present invention is to provide a plug and socket assembly, aiming to solve the technical problem of inconvenient plugging of the socket and the plug in the prior art.

[0005] To achieve the above object, the present invention provides a plug and socket assembly, including:

[0006] A plug and a socket;

[0007] The plug includes a first housing, a first permanent magnet and a first conductive contact provided on the first housing;

[0008] The socket includes a second housing, a second conductive contact provided on the second housing, a second permanent magnet, a conductive member and a power conductor provided in the second housing. The second conductive contact is electrically connected to the conductive member, and the conductive member is also connected to the second permanent magnet and can move with the second permanent magnet; so as to drive the second permanent magnet to move by the magnetic force between the first permanent magnet and the second permanent magnet, and further drive the conductive member to move towards the power conductor and contact and conduct with the power conductor.

[0009] Optionally, the polarities of the second permanent magnets are the same. The first permanent magnet includes a first sub-magnet and a second sub-magnet. The polarity of the first sub-magnet is opposite to the polarity of the second permanent magnet, and the polarity of the second sub-magnet is the same as the polarity of the second permanent magnet. The power conductor includes two conductive plates arranged at intervals, and the conductive member is provided between the two conductive plates.

[0010] Optionally, the number of the first sub-magnets, the second sub-magnets, the second permanent magnets, and the conductive members is multiple, and the number of the first sub-magnets is greater than the number of the second sub-magnets.

[0011] Optionally, the first permanent magnets are evenly spaced in the first housing, and the first sub-magnets are arranged around the second sub-magnets.

[0012] Optionally, the first sub-magnets, the second sub-magnets, and the second permanent magnets are all rectangular magnets. The first sub-magnets are arranged in a rectangular frame, and the second sub-magnets are rectangular blocks arranged within the rectangular frame.

[0013] Optionally, the first permanent magnets and the second permanent magnets are all circular magnets, and multiple first sub-magnets are annularly distributed around the second sub-magnets.

[0014] Optionally, the first permanent magnets have the same polarity. The second permanent magnet includes a third sub-magnet and a fourth sub-magnet. The polarity of the third sub-magnet is opposite to the polarity of the first permanent magnets, and the polarity of the fourth sub-magnet is the same as the polarity of the first permanent magnets. The power conductor includes two conductive plates arranged at intervals, and the conductive member is arranged between the two conductive plates.

[0015] Optionally, the socket further includes a conductive layer arranged in the second housing, and the conductive layer is electrically connected to the second conductive contact and the conductive member respectively.

[0016] Optionally, a fixing member and a connecting member are further arranged in the housing. The second permanent magnet and the conductive member are connected through the connecting member, and an elastic telescopic member is further arranged between the fixing member and the connecting member, so that when the magnetic force disappears, the second permanent magnet can be driven by the elastic telescopic member to return to the initial state, and further the conductive member is separated from the power conductor to disconnect the circuit.

[0017] Optionally, the connecting member includes a vertical rod and a horizontal rod arranged on the vertical rod. The second permanent magnet and the conductive member are respectively arranged at two ends of the vertical rod, a horizontal plate is arranged on the fixing member, and two ends of the elastic telescopic member are respectively abutted against the horizontal plate and the horizontal rod.

[0018] In the above technical solution of the present invention, the plug and socket assembly includes a plug and a socket; the plug includes a first housing, a first permanent magnet and a first conductive contact disposed in the first housing; the socket includes a second housing, a second conductive contact disposed in the second housing, and a second permanent magnet, a conductive member and a power conductor are further disposed in the second housing, the second conductive contact is electrically connected to the conductive member, and the conductive member is also connected to the second permanent magnet and can move with the second permanent magnet; so as to drive the second permanent magnet to move through the magnetic force between the first permanent magnet and the second permanent magnet, and further drive the conductive member to move toward the power conductor and contact the power conductor to conduct electricity. In the above solution, when the plug and the socket are in contact, the first conductive contact and the second conductive contact are in contact, and the first permanent magnet in the plug and the second permanent magnet in the socket are close to each other and have a large magnetic force, which causes the second permanent magnet to move and drives the conductive member connected to the second permanent magnet to move toward the power conductor and then contact the power conductor to realize the conduction connection of the circuit. In this embodiment, the connection between the conductive member and the power conductor is realized through the magnetic force between the first permanent magnet and the second permanent magnet, replacing the way of realizing circuit conduction by the cooperation of the plug and the jack in the prior art. When connecting the socket and the plug, it is not necessary to align the plug and the jack, and only the contact between the plug and the socket is required to conduct electricity, which has outstanding advantages especially in places with dim light or where the eyes cannot see, and has the advantage of convenient electrical connection between the plug and the socket. Moreover, in this embodiment, the energized part of the socket is sealed in the socket, ensuring that the socket will not leak electricity in a humid or watery environment, and improving the safety performance of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0020] Figure 1 Structural schematic diagram of the socket according to the embodiment of the present invention;

[0021] Figure 2 Partial structural schematic diagram of the interior of the socket according to the embodiment of the present invention;

[0022] Figure 3 Another partial structural schematic diagram of the interior of the socket according to the embodiment of the present invention;

[0023] Figure 4 Structural schematic diagram of the fixing member, the connecting member and the first permanent magnet according to the embodiment of the present invention;

[0024] Figure 5 Another partial structural schematic diagram of the socket according to the embodiment of the present invention;

[0025] Figure 6 This is a partial structural schematic diagram of the plug in the embodiment of the present invention;

[0026] Figure 7 This is another partial structural schematic diagram of the plug in the embodiment of the present invention.

[0027] Explanation of the reference numerals in the drawings:

[0028] 1. Socket; 10. Second conductive contact; 11. Second housing; 12. Second permanent magnet; 13. Conductive member; 14. Power conductor; 141. Upper conductive plate; 142. Lower conductive plate; 15. Wire; 16. Fixing member; 161. Horizontal plate; 17. Connecting member; 171. Vertical rod; 172. Cross bar; 18. Elastic telescopic member; 19. Conductive layer; 2. Plug; 21. First housing; 221. First sub-magnet; 222. Second sub-magnet; 3. Leakage protector.

[0029] The realization of the purpose, functional features and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments. Specific embodiments

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] It should be noted that all the directional indications (such as up, down...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0032] In addition, the descriptions such as "first" and "second" in the present invention are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature.

[0033] Moreover, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0034] See Figures 1-7, the present invention provides a plug and socket assembly, comprising: a plug 2 and a socket 1; the plug 2 includes a first housing 21, a first permanent magnet and a first conductive contact disposed on the first housing 21; the socket 1 includes a second housing 11, a second conductive contact 10 disposed on the second housing 11, a second permanent magnet 12, a conductive member 13 and a power conductor 14 are further disposed in the second housing 11, the second conductive contact 10 is electrically connected to the conductive member 13, and the conductive member 13 is also connected to the second permanent magnet 12 and can move with the second permanent magnet 12; so as to drive the movement of the second permanent magnet 12 through the magnetic force between the first permanent magnet and the second permanent magnet 12, and further drive the conductive member 13 to move towards the power conductor 14 and contact and conduct with the power conductor 14.

[0035] In the above embodiment, when the plug 2 and the socket 1 are in contact, the first conductive contact and the second conductive contact 10 are in contact, and the first permanent magnet in the plug 2 and the second permanent magnet 12 in the socket 1 are close to each other and have a large magnetic force. This magnetic force causes the second permanent magnet 12 to move, driving the conductive member 13 connected to the second permanent magnet 12 to move towards the power conductor 14 and then contact the power conductor 14 to achieve conduction connection of the circuit. In this embodiment, the connection between the conductive member 13 and the power conductor 14 is achieved through the magnetic force between the first permanent magnet and the second permanent magnet 12, replacing the way of achieving circuit conduction by the cooperation of the plug 2 and the jack in the prior art. When connecting the socket 1 and the plug 2, it is not necessary to align the plug 2 and the jack, and only the contact between the plug and the socket is required to achieve conduction, which has outstanding advantages especially in places with dim light or where the eyes cannot see, and has the advantage of convenient electrical connection between the plug 2 and the socket 1. Moreover, in this embodiment, the live part of the socket 1 is sealed in the socket 1, ensuring that the socket 1 will not leak electricity in an environment with high humidity or water, improving the safety performance of use.

[0036] As a specific implementation manner of the above embodiment, the first conductive contact and the second conductive contact 10 can be respectively disposed on the surfaces of the plug 2 and the socket 1, the first permanent magnet can be disposed directly above the first conductive contact, and the second permanent magnet 12 can be disposed directly below the second conductive contact 10. In this way, when the conductive contacts are in contact with each other, the first permanent magnet and the second permanent magnet 12 are just opposite to each other, which is beneficial to utilize the magnetic attraction force between the two.

[0037] Further, referring to Figure 2 and Figures 5-7, the polarities of the second permanent magnets 12 are the same. The first permanent magnet includes a first sub-magnet 221 and a second sub-magnet 222. The polarity of the first sub-magnet 221 is opposite to that of the second permanent magnet 12, and the polarity of the second sub-magnet 222 is the same as that of the second permanent magnet 12. The power conductor 14 includes two spaced conductive plates, and the conductive member 13 is disposed between the two conductive plates. The numbers of the first sub-magnet 221, the second sub-magnet 222, the second permanent magnet 12, and the conductive member 13 are all multiple, and the number of the first sub-magnets 221 is greater than the number of the second sub-magnets 222. An attractive force is generated between the first sub-magnet 221 and the second permanent magnet 12 due to the opposite polarities, and a repulsive force is generated between the second sub-magnet 222 and the second permanent magnet 12 due to the same polarities. Specifically, the spaced conductive plates include an upper conductive plate 141 and a lower conductive plate 142. When the first sub-magnet 221 approaches the second permanent magnet 12, the first sub-magnet 221 can move upward under the action of the attractive force, and then drive the conductive member 13 connected to the first sub-magnet 221 to move upward and contact the upper conductive plate 141; when the second sub-magnet 222 approaches the second permanent magnet 12, the second sub-magnet 222 can move downward under the action of the repulsive force, and then drive the conductive member 13 connected to the second sub-magnet 222 to move downward and contact the lower conductive plate 142. Here, the conductive plates are connected to the power supply. In this way, under the combined action of the attractive force and the repulsive force, the conductive member 13 is electrically connected to the upper conductive plate 141 and the lower conductive plate 142 respectively (here, different conductive members 13 are connected to the upper conductive plate 141 and the lower conductive plate 142), the circuit is turned on, and then the plug 2 can be energized through the socket 1. Since the mutual attraction also needs to overcome the work done by gravity, the attractive force that drives the second permanent magnet 12 and the conductive member 13 to move upward is greater than the repulsive force that drives the second permanent magnet 12 and the conductive member 13 to move downward. Therefore, the number of the first sub-magnets 221 that generate the attractive force is greater than the number of the second sub-magnets 222 that generate the repulsive force (it can also be said that the mass of the first sub-magnets 221 that generate the attractive force is greater than the mass of the second sub-magnets 222 that generate the repulsive force). As for the conductive member 13, it can be a metal sheet, as long as it can conduct electricity and contact the conductive plate well.

[0038] Refer to Figures 5-7, Further, the first permanent magnets are evenly spaced within the first housing 21, and the first sub-magnets 221 are arranged around the second sub-magnets 222. It should be noted here that the first sub-magnets 221 and the second sub-magnets 222 are arranged with a certain distance therebetween, so that the attractive force generated between the first sub-magnets 221 and the second permanent magnets 12 and the repulsive force generated between the second sub-magnets 222 and the second permanent magnets 12 do not affect each other. That is, when the first sub-magnets 221 and the second permanent magnets 12 approach each other, under the action of the gravitational force, one of the second permanent magnets 12 in the socket 1 is driven to move upward, and then a conductive member 13 connected to this second permanent magnet 12 moves upward to contact the upper conductive plate 141; at the same time, the second sub-magnets 222 and the second permanent magnets 12 approach each other, and under the action of the repulsive force, the other second permanent magnet 12 in the socket 1 is driven to move upward, and then the other conductive member 13 connected to the other second permanent magnet 12 moves downward to contact the lower conductive plate 142 to conduct, so as to form a power supply circuit to electrically connect the plug 2 and the socket 1.

[0039] Refer to Figure 6 , As a specific implementation manner of the above embodiment, the first sub-magnets 221, the second sub-magnets 222 and the second permanent magnets 12 are all rectangular magnets. The first sub-magnets 221 are arranged in a rectangular frame, and the second sub-magnets 222 are rectangular blocks arranged within the rectangular frame. Such a design can enable the first sub-magnets 221 and the second sub-magnets 222 to contact the second permanent magnets 12 simultaneously. Of course, it is also necessary to ensure that the number of the first sub-magnets 221 is greater than that of the second sub-magnets 222, or the volume of the first sub-magnets 221 is greater than that of the second sub-magnets 222, so that the attractive force generated by the first sub-magnets 221 can be greater than the repulsive force caused by the second sub-magnets 222. Specifically, as a specific implementation manner, please refer to Figure 7 , As another specific implementation manner of the above embodiment, the first sub-magnets 221, the second sub-magnets 222 and the second permanent magnets 12 are all circular magnets, and a plurality of the first sub-magnets 221 are annularly distributed around the second sub-magnets 222.

[0040] First, define the side length (when the second permanent magnet 12 is rectangular) or the diameter (when the second permanent magnet 12 is circular) of the second permanent magnet 12 as d1; when the first sub-magnet 221 and the second sub-magnet 222 are rectangular magnets, the maximum interval between the second permanent magnets 12 is d2, the side length or diameter of the second sub-magnet 222 is d3, the distance between the first sub-magnet 221 and the second sub-magnet 222 is d4, the width of the first sub-magnet 221 is d5, and the distance between the first sub-magnet 221 and the frame of the socket 1 is d6; when the first sub-magnet 221 and the second sub-magnet 222 are circular magnets, the distance between the first sub-magnet 221 and the frame of the socket 1 is d7. In order to ensure that when the plug 2 randomly lands on the socket 1, different contact points can necessarily make at least one of the moving parts in the socket 1 connect to the contacts on the surface of the socket 1, specific restrictions can be imposed on their specific dimensions as follows: the minimum distance of d3 is greater than the sum of the distance of d1 and twice the distance of d2; the minimum distances of d4, d5, and d6 are greater than the sum of the distances of d1 and d2, and the minimum distance of d7 is greater than d2.

[0041] Of course, the widths of the frames of the plug 2 and the socket 1 can also be set to be the same here, which is also more conducive to alignment and conduction. Of course, the minimum distance between each conductive contact should be greater than the minimum voltage breakdown distance of the socket 1 housing under the effect of the magnetic flux selected at the rated voltage during actual use.

[0042] In the prior art, since the positions of the holes reserved on the socket 1 are fixed, the plug 2 can only be inserted into the positions of the fixed reserved holes on the socket 1. When multiple plugs 2 are connected to the socket 1, the plugs 2 being too large will affect each other, resulting in the situation where the reserved jacks cannot insert the plugs 2. In this embodiment, the plug 2 only needs to randomly land in a specific area of the socket 1 to achieve power conduction. There is no need for the plug 2 to align with the holes reserved on the socket 1, and the plug 2 can conduct electricity randomly within the specific area of the socket 1, reducing the interference between the plugs 2.

[0043] As another implementation manner of the present invention, further, the polarities of the first permanent magnets are the same. The second permanent magnet 12 includes a third sub-magnet and a fourth sub-magnet. The polarity of the third sub-magnet is opposite to that of the first permanent magnet, and the polarity of the fourth sub-magnet is the same as that of the first permanent magnet. The power conductor 14 includes two conductive plates arranged at intervals, and the conductive member 13 is arranged between the two conductive plates. That is to say, the first permanent magnets of the plug 2 can be set to have the same polarity, the polarity of the second permanent magnet 12 of the socket 1 can be set to be partially the same as that of the first permanent magnet and partially opposite to that of the first permanent magnet, and the number of the third sub-magnets is greater than the number of the fourth sub-magnets. Other components can refer to the above description and will not be elaborated here one by one.

[0044] Further, refer to Figures 2-3, the socket 1 further includes a conductive layer 19 disposed within the second housing 11, and the conductive layer 19 is electrically connected to the second conductive contact 10 and the conductive member 13 respectively. Here, the conductive layer 19 is equivalent to a hub connecting the second conductive contact 10 and the conductive plate, and the second conductive contact 10 and the conductive layer 19, as well as the conductive layer 19 and the conductive member 13, can be electrically connected through the wire 15 respectively.

[0045] Further, referring to Figures 2-4 , a fixing member 16 and a connecting member 17 are further disposed within the housing. The second permanent magnet 12 and the conductive member 13 are connected through the connecting member 17, and an elastic telescopic member 18 is disposed between the fixing member 16 and the connecting member 17, so that when the magnetic force disappears, the second permanent magnet 12 can be restored to its initial state under the drive of the elastic telescopic member 18, thereby separating the conductive member 13 from the power conductor 14 to disconnect the circuit. Specifically, when the plug 2 and the socket 1 are engaged, the elastic telescopic member 18 is deformed under the action of the magnetic force and stores potential energy. When the plug 2 is released, the elastic telescopic member 18 resumes deformation, thereby separating the conductive member 13 from the power conductor 14 to disconnect the power supply, ensuring that the surface of the socket 1 is not charged when the plug 2 is not engaged with the socket 1 and preventing danger from occurring.

[0046] As a specific implementation manner of the above embodiment, please refer to Figure 4 , the connecting member 17 includes a vertical rod 171 and a horizontal rod 172 disposed on the vertical rod 171. The second permanent magnet 12 and the conductive member 13 are respectively disposed at both ends of the vertical rod 171. A horizontal plate 161 is disposed on the fixing member 16, and both ends of the elastic telescopic member 18 are respectively abutted against the horizontal plate 161 and the horizontal rod 172. Specifically, the elastic telescopic member 18 can be a spring, and both ends of the spring are respectively abutted against the horizontal plate 161 and the horizontal rod 172. The number of the spring and the horizontal plate 161 can both be two, and the horizontal rod 172 is disposed between the two horizontal plates 161.

[0047] In addition, to improve the safety performance of the socket 1, a leakage protector 3 can be installed between the conductive plate and the power supply to avoid the surface of the socket 1 being charged due to the power supply in the socket 1 being accidentally connected to the second conductive contact 10 on the surface of the socket 1 and prevent dangerous accidents from occurring.

[0048] The above are only optional embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the technical concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A plug and socket assembly, characterized in that, Comprising: A plug and a socket; The plug includes a first housing, a first permanent magnet, and a first conductive contact provided on the first housing; The socket includes a second housing, a second conductive contact provided on the second housing, a second permanent magnet, a conductive member, and a power conductor provided in the second housing. The second conductive contact is electrically connected to the conductive member, and the conductive member is also connected to the second permanent magnet and can move with the second permanent magnet; so as to drive the second permanent magnet to move through the magnetic force between the first permanent magnet and the second permanent magnet, and then drive the conductive member to move towards the power conductor and contact and conduct with the power conductor; The polarities of the second permanent magnets are the same. The first permanent magnet includes a first sub-magnet and a second sub-magnet. The polarity of the first sub-magnet is opposite to the polarity of the second permanent magnet, and the polarity of the second sub-magnet is the same as the polarity of the second permanent magnet. The power conductor includes two spaced conductive plates, and the conductive member is provided between the two conductive plates; The number of the first sub-magnets, the second sub-magnets, the second permanent magnets, and the conductive members is multiple, and the number of the first sub-magnets is greater than the number of the second sub-magnets.

2. The plug and socket assembly according to claim 1, wherein, The first permanent magnets are evenly spaced in the first housing, and the first sub-magnets are arranged around the second sub-magnet.

3. The plug and socket assembly according to claim 2, wherein The first sub-magnet, the second sub-magnet, and the second permanent magnet are all rectangular magnets. The first sub-magnet is arranged in a rectangular frame, and the second sub-magnet is a rectangular block arranged in the rectangular frame.

4. The plug and socket assembly according to claim 2, wherein, The first permanent magnet and the second permanent magnet are both circular magnets, and a plurality of the first sub-magnets are annularly distributed around the second sub-magnet.

5. The plug and socket assembly according to claim 1, characterized in that, The polarities of the first permanent magnets are the same. The second permanent magnet includes a third sub-magnet and a fourth sub-magnet. The polarity of the third sub-magnet is opposite to the polarity of the first permanent magnet, and the polarity of the fourth sub-magnet is the same as the polarity of the first permanent magnet. The power conductor includes two spaced conductive plates, and the conductive member is provided between the two conductive plates.

6. The plug and socket assembly according to any one of claims 1-5, characterized in that, The socket further includes a conductive layer provided in the second housing, and the conductive layer is electrically connected to the second conductive contact and the conductive member respectively.

7. The plug and socket assembly according to any one of claims 1-5, characterized in that, A fixing member and a connecting member are further provided in the housing. The second permanent magnet and the conductive member are connected by the connecting member, and an elastic telescopic member is further provided between the fixing member and the connecting member, so that when the magnetic force disappears, the second permanent magnet can be driven by the elastic telescopic member to return to the initial state, and then the conductive member is separated from the power conductor to disconnect the circuit.

8. The plug and socket assembly according to claim 7, characterized in that, The connecting member includes a vertical rod and a horizontal rod provided on the vertical rod. The second permanent magnet and the conductive member are respectively provided at both ends of the vertical rod. A horizontal plate is provided on the fixing member, and both ends of the elastic telescopic member are abutted against the horizontal plate and the horizontal rod respectively.

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