CN218351811U - Housing Assemblies and Lifting Sockets - Google Patents

Abstract

The embodiment of the utility model provides a shell assembly and a lifting socket, which relate to the technical field of electrical appliances. By setting the fixed cylinder as a structure with open top and bottom ends, and then fixing and inserting the cylinder body in the fixed cylinder, the socket body After rising from the cylinder, since there is a drainage gap between the outer wall of the cylinder and the inner wall of the fixed cylinder, the water will be directly discharged from the bottom of the fixed cylinder under the guidance of the drainage gap, thereby effectively avoiding water leakage. Enter from the gap between the cylinder body and the socket body to slow down the phenomenon of water accumulation.

Description

Housing Assemblies and Lifting Sockets

technical field

The utility model relates to the technical field of electrical appliances, in particular to a shell assembly and a lifting socket.

Background technique

With the development of society and the advancement of technology, people began to pursue the simplicity and comfort of life. In order to meet people's living needs, various electrical products emerged as the times require. Sockets, as household appliances used to connect and disconnect circuits, have gradually become necessities in people's lives.

For the lifting socket, after the socket body is raised, water can easily enter the gap between the socket body and the fixed cylinder, and water will accumulate at the bottom of the socket.

Utility model content

The purpose of the utility model is to provide a shell assembly and a lifting socket, which can effectively prevent water from entering from the gap between the cylinder body and the socket body, and slow down the phenomenon of water accumulation.

In a first aspect, the utility model provides a shell assembly for a lifting socket, the lifting socket includes a socket body, and the shell assembly includes:

a fixed cylinder, the top and bottom of which are open;

The cylinder body is fixedly inserted in the fixed cylinder, and the socket body can be lifted and inserted in the cylinder body;

Wherein, there is a drainage gap between the outer wall of the cylinder and the inner wall of the fixed cylinder.

In an optional embodiment, the outer wall of the cylindrical body is provided with a first abutting portion extending outward, and the inner wall of the fixed cylinder is provided with a second abutting portion extending inward. The bottom surface of the abutting portion abuts against the top surface of the second abutting portion with a gap.

In an optional embodiment, both the first abutting portion and the second abutting portion are annular ring bodies, and a plurality of protrusions are distributed between them.

In an optional embodiment, the upper surface of the second abutting portion is provided with a plurality of protrusions.

In an optional embodiment, the first abutting portion is provided with a water hole facing the second abutting portion.

In an optional embodiment, there is a gap between the second abutting portion and the outer wall of the barrel.

In an optional embodiment, the top surface of the first abutting portion is lower than the top surface of the barrel.

In an optional embodiment, the cylinder body includes an outer cylinder and a sleeve that are engaged with each other, the sleeve is inserted into the outer cylinder, and the sleeve has a portion protruding from the outer cylinder. top;

Wherein, the outer cylinder is sandwiched between the sleeve and the fixed cylinder, and the outer cylinder is located below the second abutting portion; the first abutting portion is disposed on the sleeve outer wall.

In an optional embodiment, the cylinder body includes an outer cylinder and a sleeve that are engaged with each other, the sleeve is inserted into the outer cylinder, and the sleeve has a portion protruding from the outer cylinder. The top end, wherein, there is a first gap between the outer wall of the part of the sleeve protruding from the top end of the outer cylinder and the inner wall of the fixed cylinder, and the outer wall of the outer cylinder and the inner side wall of the fixed cylinder A second gap is left between the walls, and the first gap and the second gap together constitute the drainage gap.

In an optional embodiment, the outer shell assembly further includes an inner bottom shell, and the inner bottom shell is used to be socketed on the bottom of the socket body, wherein a water leakage hole is provided at the bottom of the inner bottom shell.

In a second aspect, the present utility model provides a lifting socket, including the shell assembly described in any one of the foregoing embodiments.

The beneficial effects of the utility model embodiment include:

By setting the fixed cylinder as a structure with both top and bottom ends open, and then fixing and inserting the cylinder in the fixed cylinder, after the socket body rises from the cylinder, due to the difference between the outer wall of the cylinder and the inner wall of the fixed cylinder, There is a drainage gap between them, so the water will be directly discharged from the bottom of the fixed cylinder under the guidance of the drainage gap, which can effectively prevent water from entering the gap between the cylinder body and the socket body, and slow down the phenomenon of water accumulation.

Description of drawings

In order to more clearly illustrate the specific implementation of the utility model or the technical solutions in the prior art, the accompanying drawings that need to be used in the description of the specific implementation or the prior art will be briefly introduced below. Obviously, the following descriptions The accompanying drawings are some implementations of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without any creative work.

Fig. 1 is a three-dimensional schematic diagram of the lifting socket of the present embodiment when the socket body is lowered;

Fig. 2 is a three-dimensional schematic diagram of the lifting socket of the present embodiment when the socket body is raised;

Fig. 3 is a top view of the shell assembly of this embodiment after the inner bottom shell is hidden;

Fig. 4 is A-A sectional view of Fig. 3;

Fig. 5 is the B-B sectional view of Fig. 3;

Fig. 6 is an enlarged view of part I in Fig. 4;

Figure 7 is an enlarged view of part II in Figure 5;

Figure 8 is an enlarged view of part III in Figure 5;

Fig. 9 is a three-dimensional schematic view of the sleeve of this embodiment;

Fig. 10 is a three-dimensional schematic diagram of the outer cylinder of the present embodiment;

Fig. 11 is a three-dimensional schematic diagram of the fixing cylinder of this embodiment;

Fig. 12 is a three-dimensional schematic diagram of the combined structure of the socket body and the inner bottom shell in this embodiment;

Fig. 13 is a three-dimensional schematic diagram of the inner bottom shell of this embodiment;

Fig. 14 is a schematic perspective view of the bottom cover of this embodiment.

Icons: 100-shell assembly; 110-cylinder body; 111-sleeve; 1110-first gap; 1111-hook; 1112-guiding slope; 1130-the second gap; 1131-card slot; 1132-the first arc side wall; Card hole; 130-fixing cylinder; 131-second abutting part; 132-bulge; 150-inner bottom shell; 151-leakage hole; 170-bottom cover; 171-drainage hole; Fixed ring; 200-socket body.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the utility model more clear, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described The embodiments are some embodiments of the present utility model, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that is usually placed when the product of the utility model is used. It is only for the convenience of describing the utility model and simplifying the description, rather than Any indication or implication that a referenced device or element must have a particular orientation, be constructed, and operate in a particular orientation should not be construed as limiting the invention. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions, and should not be construed as indicating or implying relative importance.

In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" only means that its direction is more horizontal than "vertical", and it does not mean that the structure must be completely horizontal, but can be slightly inclined.

In the description of the present utility model, it should also be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "installation", "connection", "connection" and "contact" should be understood in a broad sense, for example , can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components ; It can be direct contact or indirect contact through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

Lifting sockets are generally used to be embedded in furniture products such as desktops and cabinets. The current lifting socket usually includes a fixed cylinder and a socket body that can be lifted and inserted into the fixed cylinder. The fixed cylinder is fixed in the hole of the furniture. The surface of the furniture exposes the jack on the socket body. At this time, the user can insert the plug into the socket body to take power; The surface is flush with or slightly higher than the surface of the furniture, so that the jack of the socket body is hidden, and at the same time, the space on the surface of the furniture is not occupied, which not only saves space but also has safety.

Since the socket body can be raised and lowered relative to the fixed cylinder, a certain gap needs to be left between the socket body and the fixed cylinder so that the socket body can be raised or lowered smoothly. The existing lifting socket can be waterproof when the socket body is lowered. At this time, the lifting socket is flush with the desktop or slightly higher than the desktop; Waterlogged at the bottom. Especially for electric lifting sockets, because there is an inner bottom shell in the fixed cylinder for setting the circuit, drive board and motor, the water infiltrated from the gap between the socket body and the fixed cylinder is easy to enter the inner bottom shell and deposit, which is easy to cause Problems such as circuit, motor or driver board damage.

For this reason, the inventor provides the following embodiments of the lifting socket with drainage function after research to improve the above problems. Below in conjunction with the accompanying drawings, some embodiments of the present utility model will be described in detail. Wherein, it should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

Referring to Fig. 1 and Fig. 2, the embodiment of the present utility model provides a lifting socket, which includes a shell assembly 100 for setting in a furniture cavity and a socket body 200 that can be movably inserted into the shell assembly 100, the lifting socket The socket body 200 can be raised and lowered relative to the shell assembly 100, so that when the socket body 200 rises from the shell assembly 100, the socket is exposed to meet the demand for taking power. Guarantee the flatness and aesthetics of the furniture surface.

Referring to FIG. 3 to FIG. 5 , the housing assembly 100 includes a fixed cylinder 130 and a cylinder body 110 , and the top and bottom ends of the fixed cylinder 130 are both open. The cylinder body 110 is fixedly inserted in the fixed cylinder 130 , and the outer wall of the cylinder body 110 and the inner wall of the fixed cylinder 130 together form a drainage gap. The socket body 200 can be movably inserted into the cylinder body 110 and can be raised and lowered relative to the cylinder body 110 . Thus, by setting the fixed cylinder 130 as a structure in which the top end and the bottom end are all open, and then fixing and inserting the cylinder body 110 in the fixed cylinder 130, after the socket body 200 rises from the cylinder body 110, due to the cylinder body 110 There is a drainage gap between the outer side wall of the fixed cylinder 130 and the inner side wall of the fixed cylinder 130, so the water will be directly discharged from the bottom of the fixed cylinder 130 under the guidance of the drainage gap, and then water can be effectively prevented from flowing from the cylinder body 110 and the socket body 200. The gap between them enters to slow down the phenomenon of water accumulation.

Wherein, the length of the fixed cylinder 130 is shorter than the length of the cylinder body 110, so as to shorten the length of the water flow path between the cylinder body 110 and the fixed cylinder 130, so that the water liquid can be discharged quickly.

In order to ensure that after the socket body 200 is lowered, the top surface of the socket body 200 is flush with or only slightly higher than the surface of the furniture, so the top of the cylinder 110 is set at a lower position relative to the top of the fixed cylinder 130, that is, The top surface of the cylinder body 110 is lower than the top surface of the fixed cylinder 130. At the same time, by setting it in this way, after the socket body 200 is lowered, the top cover assembly of the socket body 200 abuts against the top surface of the cylinder body 110 to improve the socket body. The water release performance when the body 200 is lowered.

A fastening ring 190 is threaded on the outer wall of the fixing cylinder 130, and the fastening ring 190 is used to be fixed in the cavity of the furniture, so that the entire lifting socket is embedded in the furniture.

Referring to FIG. 6 , in this embodiment, the cylinder body 110 includes an outer cylinder 113 and a sleeve 111 , and the outer diameter of the outer cylinder 113 is smaller than the inner diameter of the fixed cylinder 130 . The outer diameter of the sleeve 111 is slightly smaller than the inner diameter of the outer cylinder 113, the sleeve 111 is inserted into the outer cylinder 113, and the sleeve 111 and the outer cylinder 113 are engaged with each other, and a part of the sleeve 111 protrudes from the top of the outer cylinder 113 , wherein, a first gap 1110 is left between the outer wall of the sleeve 111 protruding from the top of the outer cylinder 113 and the inner wall of the fixed cylinder 130, and a first gap 1110 is left between the outer wall of the outer cylinder 113 and the inner wall of the fixed cylinder 130. Two gaps 1130.

Thus, the drainage gap is formed by the first gap 1110 and the second gap 1130, wherein the sleeve 111 is inserted into the outer cylinder 113, so the cross-sectional area of the first gap 1110 is greater than that of the second gap 1130, This facilitates the entry of water, and finally it is discharged from the second gap 1130 .

7, 9 and 10, the outer cylinder 113 is provided with a slot 1131, the sleeve 111 is provided with a hook 1111, and the hook 1111 is engaged with the slot 1131, so as to realize the connection between the outer cylinder 113 and the sleeve 111. The connection is fixed.

One end of the hook 1111 has a guide slope 1112 , the guide slope 1112 is used to slide against the inner sidewall of the outer cylinder 113 when the sleeve 111 is inserted into the outer cylinder 113 , so as to force the hook 1111 to bend inward. In this way, by setting the guide slope 1112 at one end of the hook 1111, during the process of inserting the sleeve 111 into the outer cylinder 113, the inner wall of the outer cylinder 113 first abuts the guide slope 1112, and as the sleeve 111 gradually Pressing down on the outer cylinder 113, the guide slope 1112 will be more and more pressed by the outer cylinder 113, and relative sliding will occur between the guide slope 1112 and the inner side wall of the outer cylinder 113, so that the hook 1111 is elastically deformed. Forcing the hook 1111 to bend inward, it is convenient to insert the sleeve 111 into the outer cylinder 113 until the position of the sleeve 111 in the outer cylinder 113 is such that the hook 1111 corresponds to the groove 1131, at this time the guide slope 1112 is squeezed The force is smaller than the elastic restoring force of the hook 1111 , and the hook 1111 resets and engages with the slot 1131 to facilitate the connection between the sleeve 111 and the outer cylinder 113 .

Wherein, the slot 1131 is set to pass through the side wall of the outer cylinder 113, so that when the outer tube 113 and the sleeve 111 need to be removed, the hook 1111 can be directly pressed from the slot 1131 so that the hook 1111 bends inward, and then Then the sleeve 111 can be pulled out from the outer cylinder 113 , so setting the locking groove 1131 through the side wall of the outer cylinder 113 can facilitate the disassembly of the outer cylinder 113 and the sleeve 111 .

In this embodiment, the fixed cylinder 130 is circular, and the side wall of the outer cylinder 113 of the cylinder body 110 includes arc-shaped side walls and planar side walls connected in the circumferential direction. and the arc-shaped sidewall abuts against the inner sidewall of the fixing cylinder 130 to ensure that the relative fixing between the outer cylinder 113 and the inside of the fixing cylinder 130 is relatively stable. The second gap 1130 between the planar sidewall and the inner sidewall of the fixed cylinder 130, so that the arc-shaped sidewall and the inner sidewall of the fixed cylinder 130 can pass through the planar sidewall and the fixed cylinder A second gap 1130 is formed between the circular inner sidewalls of 130 to ensure the drainage rate.

For example, the side wall of the sleeve 111 includes a first arc-shaped side wall 1132, a first planar side wall 1133, a second arc-shaped side wall 1134, and a second planar side wall 1135 connected end to end in sequence, and the first arc-shaped side wall The wall 1132 and the second arc-shaped side wall 1134 are opposite and concentric, and the first planar side wall 1133 and the second planar side wall 1135 are opposite and parallel, so that the first arc-shaped side wall 1132 and the second arc-shaped side wall 1134 A second gap 1130 is formed between the inner side wall of the fixed cylinder 130 and the water discharge.

In order to fix the cylinder 110 relative to the fixed cylinder 130, a first abutting portion 1113 extending outward is provided on the outer wall of the cylinder 110, and a second abutting portion 1113 extending inward is provided on the inner wall of the fixing cylinder 130. The contact part 131, the bottom surface of the first contact part 1113 and the top surface of the second contact part 131 contact, so that the cylinder body 110 is supported in the fixed cylinder 130, while the first contact part 1113 and the second contact part 1113 Part 131 leaves a gap for water to pass through.

Specifically, a first abutting portion 1113 is provided on the outer wall of the portion of the sleeve 111 protruding from the top end of the outer tube 113 , so the first abutting portion 1113 is located at the top of the barrel 110 .

Of course, it can be understood that, in some embodiments, the outer cylinder 113 and the sleeve 111 can also be an integrated connection structure, that is, the cylinder 110 is a single part that is integrally processed or cast. At this time, the first The location of the abutting portion 1113 can be any location on the outer wall of the barrel 110 .

Referring to Fig. 6, Fig. 9 and Fig. 11, in this embodiment, both the first abutting portion 1113 and the second abutting portion 131 are annular ring bodies, that is, both the first abutting portion 1113 and the second abutting portion 131 are It is a continuous and closed continuous ring, and a plurality of protrusions 132 are distributed between the first abutting portion 1113 and the second abutting portion 131 at intervals. Thus, the obstruction of the water flow in the drainage gap by the first abutting portion 1113 and the second abutting portion 131 can be reduced, so that the drainage is smoother.

Wherein, in order to ensure the fastening stability of the cylindrical body 110 relative to the fixed cylinder 130, the outer wall of the first abutting portion 1113 is set to abut against the inner wall of the fixed cylinder 130, for example, the outer wall of the first abutting portion 1113 The outer diameter is set to be only slightly smaller than the inner diameter of the barrel 110 , so that the outer sidewall of the annular ring body and the inner sidewall of the fixed barrel 130 abut relatively tightly. At this time, in order to prevent the first abutting portion 1113 from blocking the water, the first abutting portion 1113 is provided with a water hole 1114 penetrating through its top surface and bottom surface, and the water hole 1114 faces the second abutting portion 131 like this Firstly, the water that enters the drainage gap between the cylinder body 110 and the fixed cylinder 130 can flow down through the water hole 1114, then continue to flow down through the gap between two adjacent protrusions 132, and finally be discharged The lift socket. Wherein, the number of water holes 1114 is not specifically limited in this embodiment, and may be one or more than two. Wherein, when the number of water holes 1114 is more than two, each water hole 1114 is distributed in an annular interval, So that the water liquid in the first gap 1110 can flow down more evenly.

Of course, in some embodiments, the outer wall of the first abutting portion 1113 and the inner wall of the fixed cylinder 130 can also be separated, so that the water can flow from the outer wall of the annular ring body and the inner side of the fixed cylinder 130. The flow between the walls does not hinder the discharge of water.

In addition, in this embodiment, since the second abutting portion 131 is also configured as an annular ring body, the bearing capacity of the second abutting portion 131 to the cylinder body 110 can be enhanced, and then on the second abutting portion 131 A plurality of protrusions 132 are provided on the surface, and the top surface of the protrusions 132 abuts against the bottom surface of the first abutting portion 1113 to support the barrel 110 .

Wherein, in order to prevent the second abutting portion 131 from obstructing the discharge of the water, a gap can be left between the inner wall of the second abutting portion 131 and the outer wall of the cylinder 110, so that the water from the annular ring body The water flowing down from the hole 1114 can continue to flow down through the gap between the second contact portion 131 and the barrel 110 .

Of course, in some embodiments, the inner wall of the second abutting portion 131 can also be made to abut against the outer wall of the cylinder 110 to ensure the fastening effect of the cylinder 110 in the fixed cylinder 130 . The abutting part 131 is provided with a perforation through its top surface and bottom surface, so that the water left from the water hole 1114 on the first abutting part 1113 can pass through the interval between two adjacent protrusions 132, and then The flow continues down from this perforation, so the discharge of the water will not be hindered.

In addition, since the first abutting portion 1113 is an annular ring body, the top surface of the first abutting portion 1113 can be set lower than the top surface of the cylinder 110, so that the top outer wall of the cylinder 110 ( That is, an annular water inlet gap is formed between the sleeve 111 protruding from the outer side wall of the part other than the top of the outer tube 113) and the inner side wall of the fixing tube 130, so that when the water liquid flows into the fixing tube 130 from the surface of the furniture, the water The liquid is blocked by the outer wall of the top wall of the cylinder body 110 , effectively preventing water liquid from entering the gap between the cylinder body 110 and the socket body 200 .

Of course, it can be understood that, in some embodiments, the first abutting portion 1113 and the second abutting portion 131 may also be a plurality of block-shaped protrusions arranged at intervals in a ring, so the top of the first abutting portion 1113 The surface can also be flush with the top surface of the cylinder body 110 . In addition, the protrusion 132 can also be arranged on the bottom surface of the first abutting portion 1113 .

11 and 12, in this embodiment, the shell assembly 100 further includes an inner bottom shell 150, the inner bottom shell 150 is used to be socketed on the bottom of the socket body 200, and fastened by bolts, so that the inner bottom shell can Electric control components such as a motor and a drive board for driving the socket body 200 to rise and fall are arranged in 150 . Wherein, the bottom of the inner bottom shell 150 is provided with a water leakage hole 151 . Therefore, even if some water liquid leaks in from the gap between the sleeve 111 of the cylinder body 110 and the socket body 200, the water liquid will be directly discharged from the water leakage hole 151, so water accumulation will not form in the inner bottom shell 150 . Wherein, there are multiple water leakage holes 151, and all the water leakage holes 151 are arranged at intervals in a ring, so that the bottom of the inner bottom shell 150 is in a grid shape, further improving the water leakage effect.

In addition, referring to FIG. 8 , FIG. 13 and FIG. 14 , the housing assembly 100 also includes a bottom cover 170 connected to the bottom end of the outer cylinder 113 , wherein the bottom cover 170 is provided with a drainage hole 171 so that the water discharged from the leakage hole 151 Water can directly lead to the outside of the entire lifting socket through the drain hole 171 . Wherein, the drain hole 171 is arranged on the side wall of the bottom cover 170, and a snap tongue 172 is formed between two adjacent drain holes 171, and a snap hole 1136 is set on the bottom side wall of the outer cylinder 113, thereby through the snap The connection between the bottom cover 170 and the outer cylinder 113 is achieved by the fastening of the tongue 172 and the locking hole 1136. The structure and principle of this connection mode are basically the same as those of the hook 1111 and the locking groove 1131, and will not be repeated here. . Therefore, the drainage hole 171 not only plays the role of draining water, but also can reduce the number of openings on the bottom cover 170 to prevent dust from falling into the outer cylinder 113 .

To sum up, the embodiment of the present utility model provides a shell assembly 100 and a lifting socket. By setting the fixed cylinder 130 as a structure with both top and bottom ends open, and then inserting the cylinder body 110 inside the fixed cylinder 130, the After the socket body 200 rises from the cylinder body 110, since there is a drainage gap between the outer side wall of the cylinder body 110 and the inner side wall of the fixed cylinder 130, the water will flow directly from the bottom of the fixed cylinder 130 under the guidance of the drainage gap. The end discharges, thereby effectively preventing water from entering from the gap between the cylinder body 110 and the socket body 200, and slowing down the phenomenon of water accumulation.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, and are not intended to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand : It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements to some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the various embodiments of the present invention Scope of technical solutions.

Claims (11)

1. A housing assembly for a lifting jack, the lifting jack including a jack body, the housing assembly comprising:

a fixed cylinder, the top end and the bottom end of which are open;

the socket body is inserted into the cylinder body in a lifting manner;

and a drainage gap is reserved between the outer side wall of the cylinder body and the inner side wall of the fixed cylinder.

2. The housing assembly of claim 1, wherein the outer sidewall of the barrel is provided with a first abutment extending outwardly and the inner sidewall of the fixed barrel is provided with a second abutment extending inwardly, a bottom surface of the first abutment abutting a top surface of the second abutment with a space therebetween.

3. The housing assembly of claim 2, wherein the first and second abutments are annular rings and a plurality of protrusions are spaced apart therebetween.

4. The housing assembly of claim 3, wherein an upper surface of the second abutment is provided with a plurality of the bumps.

5. The housing assembly of claim 2, wherein the first abutment is provided with a water hole directly opposite the second abutment.

6. The housing assembly of claim 2, wherein a gap is left between the second abutment and an outer sidewall of the barrel.

7. The housing assembly of claim 2, wherein a top surface of the first abutment is lower than a top surface of the barrel.

8. The housing assembly of claim 2, wherein the barrel includes an outer barrel and a sleeve that snap-fit to each other, the sleeve being inserted into the outer barrel and the sleeve having a portion that extends beyond a top end of the outer barrel;

the outer cylinder is clamped between the sleeve and the fixed cylinder, and the outer cylinder is positioned below the second abutting part; the first abutting part is arranged on the outer side wall of the sleeve.

9. The housing assembly of any of claims 1-7, wherein the cartridge body comprises an outer barrel and a sleeve that are snap-fitted to each other, the sleeve being inserted into the outer barrel and partially protruding from a top end of the outer barrel, wherein a first gap is left between an outer sidewall of a portion of the sleeve that protrudes from the top end of the outer barrel and an inner sidewall of the stationary barrel, and a second gap is left between an outer sidewall of the outer barrel and an inner sidewall of the stationary barrel, and the first gap and the second gap together form the drainage gap.

10. The shell assembly according to any one of claims 1 to 7, further comprising an inner bottom shell for being sleeved on the bottom of the socket body, wherein the bottom of the inner bottom shell is provided with water leakage holes.

11. A lifting socket comprising the housing assembly of any one of claims 1-10.

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