Multi-jack socket

Abstract

The utility model belongs to the technical field of multi-jack sockets, and particularly relates to a multi-jack socket, which comprises a mounting column, a slot is arranged on the mounting column, U-shaped grooves are arranged in the mounting column and positioned above and below the slot, two rectangular grooves are symmetrically arranged between the two U-shaped grooves, the rectangular grooves are communicated with the U-shaped grooves, the slot is positioned among the four rectangular grooves, and the U-shaped grooves are communicated with the slot. A two-way threaded rod is rotationally installed in the U-shaped groove, and L-shaped rods are symmetrically installed on the two-way threaded rod in a threaded mode. The driving assembly is located in the mounting column and used for driving the two bidirectional threaded rods to rotate; when the whole device is used, the distance between the top of the protective shell and the ground is relatively high, so that children of 4-6 years old can be prevented from seeing the fixing assembly, the children of 4-6 years old can be prevented from opening the protective cover and stuffing small stones into the multi-hole socket body, and the safety of the multi-hole socket is improved. In the process of installing the multi-jack socket body, an installation tool is not needed, and installation is convenient and fast.

Description

Technical Field

[0001] The utility model belongs to the technical field of multi-hole sockets, in particular to a multi-hole socket. Background Art

[0002] A multi-hole socket is a socket on a charging pile with multiple holes. The charging pile is a charging device that provides power replenishment for electric vehicles. Its function is similar to that of a gas pump in a gas station. It can be fixed on the ground or wall and installed in public buildings and residential parking lots. It can charge various types of electric vehicles according to the adjusted voltage and current. A multi-hole socket will be installed on the charging pile.

[0003] Some existing multi-hole sockets require installation tools when they are installed on charging piles, which is inconvenient for workers to carry. At the same time, it is not easy to disassemble when the multi-hole sockets are damaged and need to be repaired. Moreover, when the multi-hole sockets are no longer in use, there is no multi-hole socket to protect them. There are many children aged 4-6 in residential communities. These children are very curious, and some children are naughty and may put small stones on the ground into the sockets, which will make the sockets unusable. In view of this, we propose a multi-hole socket. Utility Model Content

[0004] The purpose of the utility model is to provide a multi-hole socket to solve the problems raised in the above background technology.

[0005] In view of this, the utility model provides a multi-hole socket, comprising:

[0006] A mounting column, wherein a slot is provided on the mounting column, a U-shaped slot is provided in the mounting column and above and below the slot, two rectangular slots are symmetrically provided between the two U-shaped slots, and the rectangular slots are connected to the U-shaped slots, the slot is located between the four rectangular slots, a bidirectional threaded rod is rotatably installed in the U-shaped slot, and an L-shaped rod is symmetrically threadedly installed on the bidirectional threaded rod;

[0007] A drive assembly, the drive assembly is located in the mounting column and is used to drive the two bidirectional threaded rods to rotate;

[0008] A protective shell, the protective shell is fixedly mounted on one side of the mounting column, a multi-hole socket body is arranged in the protective shell, one end of the multi-hole socket body extends into the slot, four rectangular rods are fixedly mounted on one side of the multi-hole socket body close to the slot, and one end of the four rectangular rods extends into four rectangular grooves respectively, one end of the L-shaped rod extends into the rectangular rod, and a protective cover is rotatably mounted at the opening of the protective shell;

[0009] The fixing component is located on the top of the protective shell and is used to fix the protective cover.

[0010] In the technical solution, when disassembling, the staff releases the fixing of the protective cover through the fixing assembly, and then the protective cover can be rotated and opened. Then, the staff can reversely rotate the driving assembly to make the driving assembly drive the two bidirectional threaded rods to rotate. Under the action of the threads, the bidirectional threaded rods will drive the two L-shaped rods away from each other until the lower ends of the two L-shaped rods are completely pulled out of the corresponding rectangular rods, so that the several rectangular rods are released, and then the multi-hole socket body can be pulled out from the protective cover;

[0011] During installation, the multi-hole socket body is placed into the protective cover and inserted into the slot. At the same time, several rectangular rods on the multi-hole socket body will be inserted into the corresponding rectangular grooves. Then, the staff can rotate the driving assembly in the forward direction to make the driving assembly drive the two bidirectional threaded rods to rotate. Under the action of the threads, the bidirectional threaded rods will drive the two L-shaped rods closer to each other until the lower ends of the two L-shaped rods are inserted into the corresponding rectangular rods, so that several rectangular rods are fixed in the corresponding rectangular grooves. Subsequently, the multi-hole socket body will be fixed in the slot. Then, the protective cover is rotated and closed, and the staff uses the fixing assembly to fix the protective cover.

[0012] In the above technical solution, further, the driving component includes:

[0013] A power cavity is provided in the mounting column and is located on one side of the two U-shaped grooves. Two pulleys are rotatably installed in the power cavity, and a belt is installed between the two pulleys for transmission. One end of the two pulleys passes through one side of the power cavity and extends into the two U-shaped grooves respectively, and one end of the two pulleys is coaxially connected to two bidirectional threaded rods respectively, and the other end of one of the pulleys passes through the other side of the power cavity, extends to the outside and is fixedly installed with a rocker.

[0014] In this technical solution, the staff can rotate the rocker to drive one of the pulleys to rotate, one of the pulleys will drive the belt transmission, and the belt will drive the other pulley to rotate. Subsequently, the two pulleys will respectively drive the two bidirectional threaded rods to rotate, ensuring that the two bidirectional threaded rods can rotate at the same time.

[0015] In the above technical solution, further, one end of the pulley is rotatably connected to the U-shaped groove.

[0016] In this technical solution, it is ensured that the pulley can rotate in the U-shaped groove.

[0017] In the above technical solution, further, the fixing assembly includes:

[0018] A fixing plate is fixedly installed on the top of the protective shell, a tension spring is fixedly installed on one side of the protective shell, a limiting plate is fixedly installed on the top of the protective cover, a limiting block is fixedly installed on one end of the tension spring, and the limiting block is located in the limiting plate.

[0019] In this technical solution, after rotating and closing the protective cover, the staff pulls the limit block by hand. At this time, the tension spring will be stretched by the tension force. Then, under the action of the tension of the tension spring, the tension spring will pull the limit block and insert it into the limit plate, thereby fixing the limit plate and the protective cover.

[0020] In the above technical solution, further, the limit block is plug-fitted with the limit plate.

[0021] In this technical solution, it is ensured that the limit block can be inserted into the limit plate.

[0022] In the above technical solution, further, one end of the L-shaped rod is plugged into and matched with the rectangular rod, and the rectangular rod is plugged into and matched with the rectangular groove, and the distance between the top of the protective shell and the ground is 1.5m-1.6m.

[0023] In the technical solution, it is ensured that one end of the L-shaped rod can be inserted into the rectangular rod; it is ensured that the rectangular rod can be inserted into the rectangular groove, so that some children aged 4-6 cannot touch the fixing components on the top of the protective shell inconveniently, thereby preventing children aged 4-6 from opening the protective cover.

[0024] In the above technical solution, further, the bidirectional threaded rod is provided with threads with opposite rotation directions at two ends, and the multi-hole socket body is plug-fitted with the slot.

[0025] In the technical solution, under the action of the thread, it is ensured that the bidirectional threaded rod can drive the two L-shaped rods to move closer to or away from each other; and it is ensured that the multi-hole socket body can be inserted into the slot.

[0026] The beneficial effects of the utility model are:

[0027] When installing the multi-hole socket, the multi-hole socket body is placed into the protective cover and inserted into the slot. At the same time, several rectangular rods on the multi-hole socket body will be inserted into the corresponding rectangular grooves. Then, the staff can rotate the driving component in the forward direction to make the driving component drive the two bidirectional threaded rods to rotate. Under the action of the thread, the bidirectional threaded rod will drive the two L-shaped rods to approach each other until the lower ends of the two L-shaped rods are inserted into the corresponding rectangular rods, so that several rectangular rods are fixed in the corresponding rectangular grooves. Then, the multi-hole socket body will be fixed in the slot. Then, the protective cover is rotated and closed. The staff uses the fixing component to fix the protective cover. In addition, when in use, the protective cover can be opened by the fixing component for use, ensuring that the multi-hole socket body can be protected when it stops being used. At the same time, the fixing component is located at the top of the protective shell, and the top of the protective shell is higher than the ground, which can prevent children aged 4-6 from seeing the fixing component, thereby preventing children aged 4-6 from opening the protective cover and preventing children aged 4-6 from inserting small stones into the multi-hole socket body. In addition, no installation tools are required during the installation of the multi-hole socket body, and the installation is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0029] Figure 2 This is a schematic diagram of the structure of the socket body and the mounting column in the utility model;

[0030] Figure 3 It is a schematic diagram of the internal structure of the installation column in the utility model;

[0031] Figure 4 For this utility model Figure 3 The enlarged structural diagram at A in the middle;

[0032] Figure 5 This is a schematic diagram of the structure of the socket body and the rectangular rod in the utility model;

[0033] Figure 6 It is a schematic diagram of the cross-sectional structure of the installation column in the utility model;

[0034] Figure 7 This is a schematic diagram of the regional structure of the protective shell in the utility model;

[0035] Figure 8 It is a schematic diagram of the explosion structure of the limit plate and the limit plate in the utility model.

[0036] The symbols in the figure are:

[0037] 1. Mounting column; 2. Multi-hole socket body; 3. Protective shell; 4. Protective cover; 5. Rocker; 6. Slot; 7. U-shaped groove; 8. Limit block; 9. Bidirectional threaded rod; 10. Belt; 11. Limit plate; 12. L-shaped rod; 13. Rectangular groove; 14. Pulley; 15. Power chamber; 16. Rectangular rod; 17. Fixed plate; 18. Tension spring. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0039] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0040] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0041] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0042] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0043] Embodiment 1:

[0044] See also Figure 1 - Figure 8 As shown, this embodiment provides a multi-hole socket, including:

[0045] A mounting column 1 is provided with a slot 6, a U-shaped slot 7 is provided in the mounting column 1 and above and below the slot 6, two rectangular slots 13 are symmetrically provided between the two U-shaped slots 7, and the rectangular slots 13 are connected to the U-shaped slot 7, the slot 6 is located between the four rectangular slots 13, a bidirectional threaded rod 9 is rotatably installed in the U-shaped slot 7, and an L-shaped rod 12 is symmetrically threadedly installed on the bidirectional threaded rod 9;

[0046] A driving assembly, which is located in the mounting column 1 and is used to drive the two bidirectional threaded rods 9 to rotate;

[0047] A protective shell 3 is fixedly mounted on one side of the mounting column 1. A multi-hole socket body 2 is arranged inside the protective shell 3. One end of the multi-hole socket body 2 extends into the slot 6. Four rectangular rods 16 are fixedly mounted on one side of the multi-hole socket body 2 close to the slot 6. One end of the four rectangular rods 16 respectively extends into four rectangular grooves 13. One end of the L-shaped rod 12 extends into the rectangular rod 16. A protective cover 4 is rotatably mounted at the opening of the protective shell 3.

[0048] The fixing component is located on the top of the protective shell 3 and is used to fix the protective cover 4.

[0049] During disassembly, the staff releases the protection cover 4 through the fixing assembly, and then the protection cover 4 can be rotated and opened. Then, the staff can reversely rotate the driving assembly to make the driving assembly drive the two bidirectional threaded rods 9 to rotate. Under the action of the threads, the bidirectional threaded rods 9 will drive the two L-shaped rods 12 away from each other until the lower ends of the two L-shaped rods 12 are completely pulled out of the corresponding rectangular rods 16, so that the plurality of rectangular rods 16 are released, and then the multi-hole socket body 2 can be pulled out from the protection cover 4;

[0050] During installation, the multi-hole socket body 2 is placed into the protective cover 4 and inserted into the slot 6. At the same time, the several rectangular rods 16 on the multi-hole socket body 2 will be inserted into the corresponding rectangular grooves 13. Then, the staff can rotate the driving assembly in the forward direction to make the driving assembly drive the two bidirectional threaded rods 9 to rotate. Under the action of the thread, the bidirectional threaded rods 9 will drive the two L-shaped rods 12 to approach each other until the lower ends of the two L-shaped rods 12 are inserted into the corresponding rectangular rods 16, so that the several rectangular rods 16 are fixed in the corresponding rectangular grooves 13. Then, the multi-hole socket body 2 will be fixed in the slot 6. Then, the protective cover 4 is rotated and closed, and the staff uses the fixing assembly to fix the protective cover 4.

[0051] Embodiment 2:

[0052] This embodiment provides a multi-hole socket, which, in addition to the technical solutions of the above embodiments, also has the following technical features, and the driving component includes:

[0053] A power cavity 15 is provided in the mounting column 1 and is located on one side of the two U-shaped grooves 7. Two pulleys 14 are rotatably installed in the power cavity 15. A belt 10 is installed between the two pulleys 14 for transmission. One end of the two pulleys 14 passes through one side of the power cavity 15 and extends into the two U-shaped grooves 7 respectively. One end of the two pulleys 14 is coaxially connected to two bidirectional threaded rods 9 respectively. The other end of one of the pulleys 14 passes through the other side of the power cavity 15, extends to the outside and is fixedly installed with a rocker 5.

[0054] Among them, the staff can rotate the rocker 5 to make the rocker 5 drive one of the pulleys 14 to rotate, one of the pulleys 14 will drive the belt 10 to transmit, and the belt 10 will drive the other pulley 14 to rotate, and then the two pulleys 14 will respectively drive the two bidirectional threaded rods 9 to rotate, ensuring that the two bidirectional threaded rods 9 can rotate at the same time.

[0055] Embodiment 3:

[0056] This embodiment provides a multi-hole socket, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features: one end of the pulley 14 is rotatably connected to the U-shaped groove 7.

[0057] Here, it is ensured that the pulley 14 can rotate in the U-shaped groove 7 .

[0058] Embodiment 4:

[0059] This embodiment provides a multi-hole socket, which, in addition to the technical solutions of the above embodiments, also has the following technical features, and the fixing component includes:

[0060] The fixing plate 17 is fixedly installed on the top of the protective shell 3, a tension spring 18 is fixedly installed on one side of the protective shell 3, a limiting plate 11 is fixedly installed on the top of the protective cover 4, a limiting block 8 is fixedly installed on one end of the tension spring 18, and the limiting block 8 is located in the limiting plate 11.

[0061] Among them, after rotating and closing the protective cover 4, the staff pulls the limit block 8 by hand. At this time, the tension spring 18 will be stretched under the tension. Then, under the action of the tension of the tension spring 18, the tension spring 18 will pull the limit block 8 and insert it into the limit plate 11, thereby fixing the limit plate 11, and then the protective cover 4 will be fixed.

[0062] Embodiment 5:

[0063] This embodiment provides a multi-hole socket, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the limit block 8 is plugged into and matched with the limit plate 11.

[0064] Here, it is ensured that the limiting block 8 can be inserted into the limiting plate 11 .

[0065] Embodiment 6:

[0066] This embodiment provides a multi-hole socket, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features: one end of the L-shaped rod 12 is plugged into and matched with the rectangular rod 16, the rectangular rod 16 is plugged into and matched with the rectangular groove 13, and the top of the protective shell 3 is 1.5m-1.6m away from the ground.

[0067] Among them, ensure that one end of the L-shaped rod 12 can be inserted into the rectangular rod 16; ensure that the rectangular rod 16 can be inserted into the rectangular groove 13, ensure that some children aged 4-6 years old cannot touch the fixing components on the top of the protective shell 3, and prevent 4-6 years old children from opening the protective cover 4.

[0068] It is worth noting that the average height of a child aged 4-6 is about 1.1m-1.2m, and ensuring that the child's line of sight does not see the top of the protective shell 3 can prevent the child from opening the protective cover 4.

[0069] Embodiment 7:

[0070] This embodiment provides a multi-hole socket, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the bidirectional threaded rod 9 is provided with threads with opposite rotation directions at both ends, and the multi-hole socket body 2 is plugged into the slot 6.

[0071] Wherein, under the action of the thread, it is ensured that the bidirectional threaded rod 9 can drive the two L-shaped rods 12 to move closer to or away from each other; and it is ensured that the multi-hole socket body 2 can be inserted into the slot 6.

[0072] Working principle: During disassembly, the staff pulls the limit block 8 by hand to pull the limit block 8 out of the limit plate 11. At this time, the tension spring 18 will be extended by the tension force, and then the limit block 8 will be moved upward and pulled out from the limit plate 11, so that the limit block 8 is no longer in contact with the limit plate 11, thereby releasing the limit plate 11. Then, the staff can rotate and open the protective cover 4, and then the staff can reversely rotate the rocker 5 to make the rocker 5 drive one of the pulleys 14 to rotate, and one of the pulleys 14 will drive the belt 10 to transmit, and the belt 10 will drive the other pulley 14 to rotate, and then the two pulleys 14 will respectively drive the two bidirectional threaded rods 9 to rotate, and under the action of the thread, the bidirectional threaded rod 9 will drive the two L-shaped rods 12 to move away from each other until the lower ends of the two L-shaped rods 12 are completely pulled out of the corresponding rectangular rods 16, so that the plurality of rectangular rods 16 are released, and then the multi-hole socket body 2 can be pulled out from the protective cover 4;

[0073] During installation, the multi-hole socket body 2 is placed into the protective cover 4 and inserted into the slot 6. At the same time, the plurality of rectangular rods 16 on the multi-hole socket body 2 will be inserted into the corresponding rectangular grooves 13. Then, the staff can rotate the rocker 5 in the forward direction to make the rocker 5 drive one of the pulleys 14 to rotate, and one of the pulleys 14 will drive the belt 10 to transmit, and the belt 10 will drive the other pulley 14 to rotate. Then, the two pulleys 14 will respectively drive the two bidirectional threaded rods 9 to rotate. Under the action of the thread, the bidirectional threaded rod 9 will drive the two L-shaped rods 12 to approach each other until the lower ends of the two L-shaped rods 12 are inserted into the corresponding rectangular rods 16, so that the plurality of rectangular rods 16 are fixed in the corresponding rectangular grooves 13. Subsequently, the multi-hole socket body 2 will be fixed in the slot 6, and then, the protective cover 4 is rotated and closed, and the staff pulls the limit block 8 by hand. At this time, the tension spring 18 will be stretched by the tension, and then, under the action of the tension of the tension spring 18, the tension spring 18 will pull the limit block 8 and insert it into the limit plate 11, thereby fixing the limit plate 11 to ensure that the multi-hole socket body 2 can be protected when it is not in use. The top of the protective shell 3 is higher than the ground, which can prevent children aged 4-6 from seeing the top of the protective shell 3 and from opening the protective cover 4 to prevent small stones from being stuffed into the multi-hole socket body 2. At the same time, no installation tools are required during the installation process, and the installation is convenient and quick.

[0074] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A multi-hole socket, characterized in that: include: A mounting column (1), wherein a slot (6) is provided on the mounting column (1), a U-shaped slot (7) is provided in the mounting column (1) and above and below the slot (6), two rectangular slots (13) are symmetrically provided between the two U-shaped slots (7), and the rectangular slots (13) are connected to the U-shaped slots (7), the slot (6) is located between the four rectangular slots (13), a bidirectional threaded rod (9) is rotatably installed in the U-shaped slot (7), and an L-shaped rod (12) is symmetrically threadedly installed on the bidirectional threaded rod (9); A drive assembly, the drive assembly being located in the mounting column (1) and being used for driving the two bidirectional threaded rods (9) to rotate; A protective shell (3), the protective shell (3) being fixedly mounted on one side of the mounting column (1), a multi-hole socket body (2) being arranged inside the protective shell (3), one end of the multi-hole socket body (2) extending into the slot (6), four rectangular rods (16) being fixedly mounted on one side of the multi-hole socket body (2) close to the slot (6), and one end of the four rectangular rods (16) respectively extending into four rectangular grooves (13), one end of the L-shaped rod (12) extending into the rectangular rod (16), and a protective cover (4) being rotatably mounted at the opening of the protective shell (3); A fixing component is located on the top of the protective shell (3) and is used to fix the protective cover (4).

2. A multi-hole socket according to claim 1, characterized in that: The drive assembly comprises: A power chamber (15) is provided in the mounting column (1) and is located on one side of the two U-shaped grooves (7). Two pulleys (14) are rotatably mounted in the power chamber (15). A belt (10) is installed between the two pulleys (14). One end of each of the two pulleys (14) passes through one side of the power chamber (15) and extends into the two U-shaped grooves (7) respectively. One end of each of the two pulleys (14) is coaxially connected to two bidirectional threaded rods (9) respectively. The other end of one of the pulleys (14) passes through the other side of the power chamber (15) and extends to the outside and is fixedly mounted with a rocker (5).

3. A multi-hole socket according to claim 2, characterized in that: One end of the pulley (14) is rotatably connected to the U-shaped groove (7).

4. A multi-hole socket according to claim 1, characterized in that: The fixing assembly comprises: A fixing plate (17), wherein the fixing plate (17) is fixedly mounted on the top of the protective shell (3), a tension spring (18) is fixedly mounted on one side of the protective shell (3), a limiting plate (11) is fixedly mounted on the top of the protective cover (4), a limiting block (8) is fixedly mounted on one end of the tension spring (18), and the limiting block (8) is located inside the limiting plate (11).

5. A multi-hole socket according to claim 4, characterized in that: The limiting block (8) is plug-fitted with the limiting plate (11).

6. A multi-hole socket according to claim 1, characterized in that: One end of the L-shaped rod (12) is plugged into and matched with the rectangular rod (16), and the rectangular rod (16) is plugged into and matched with the rectangular groove (13), and the distance between the top of the protective shell (3) and the ground is 1.5m-1.6m.

7. A multi-hole socket according to claim 1, characterized in that: The bidirectional threaded rod (9) is provided with threads with opposite rotation directions at both ends, and the multi-hole socket body (2) is plug-fitted into the slot (6).

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