Through-wall straight-through connector stable in installation and high in sealing performance

Abstract

A through-wall straight-through connector stable in installation and high in sealing performance comprises a connector body, a fixing ring and a sealing sleeve. The joint body is in a branch pipe shape, and two ends of the joint body are respectively a water inlet section and a water outlet section; a connecting section is further arranged on the connector body and located between the water inlet section and the water outlet section, and the sealing sleeve is arranged on the connecting section in a sleeving mode; a circle of fixing rib is convexly arranged on the connecting section close to the water inlet section; a plurality of threaded holes are further formed in the fixing rib, a plurality of bolt holes are further formed in the fixing ring, fixing bolts sequentially penetrate through the bolt holes and the wall plate and then are screwed in the threaded holes, and connection of the connector body and the fixing ring on the wall plate can be achieved; a circle of limiting step is further arranged on the connecting section in a protruding mode, a plurality of rotation stopping ribs are arranged on the peripheral side of the limiting step in a protruding mode, and the rotation stopping ribs can be in clamping fit with the inner wall of the wallboard hole; according to the utility model, the joint body can be mounted on the wall plate, and liquid can be prevented from entering holes of the wall plate to cause corrosion due to the arrangement of the sealing sleeve.

Description

Technical Field

[0001] The utility model relates to the field of water pipe joints, in particular to a wall-penetrating straight-through joint which has stable installation and high sealing performance. Background Art

[0002] A joint is a component used to connect water pipes. Water pipe joints can be divided into: external threaded end-connected water pipe joints, ferrule-type water pipe joints, and self-fixing water pipe joints according to their usage.

[0003] In the prior art, during the process of laying indoor pipes, water pipes are generally pre-buried in the wall, and then a pipe joint connected to the wall is used to connect the pre-buried water pipes and the indoor water pipes. In the prior art, such pipe joints are generally provided with threads at one end, and then the pipe joints are inserted into the holes in the wall by relying on the thread to achieve the connection of the pipe joints to the wall.

[0004] For example, the Chinese patent with patent number ZL201821104565.4 discloses: "A sealing structure for wall water pipe installation, including a water pipe joint installed inside the wall, the front end of the water pipe joint is used to connect a faucet or a water outlet pipe and can extend out of the wall, and the front end of the water pipe joint is provided with a water guide ring, the water guide ring and the water pipe joint are integrally formed, or the water guide ring and the water pipe joint are a separate structure, and the inner periphery of the water pipe joint is embedded with an insert for connecting a faucet or a water pipe. The utility model is provided with a water guide ring at the outer end of the water pipe joint, and the faucet or the water outlet pipe is connected to the water pipe joint through the water guide ring. When installing the water pipe joint, cement can be directly adhered to the outer periphery of the water guide ring, so as to minimize the gap between the cement wall and the water pipe joint, enhance the sealing performance, and prevent water from leaking into the gap in the wall."

[0005] With the rapid development of decoration technology, the existing indoor pipe connection method is no longer limited to the solution recorded in the above patent. Since some indoors now use wall panels, the wall panels are covered on the wall surface, and the pipes are located between the wall panels and the wall surface, the pipe joints need to be connected to the wall panels, and then the water pipes inside and outside the wall panels are connected to the pipe joints to achieve connectivity. However, since the wall panels are different from the wall surface, they do not have sufficient thickness to provide the pipe joints for threaded engagement, and since the wall panels are more susceptible to corrosion due to moisture than the wall surface, it is necessary not only to connect the pipe joints, but also to seal the pipe joints and the wall panels. However, there is a lack of a pipe joint wall panel installation structure on the market that can ensure both stable installation and sealing. Summary of the Invention

[0006] In order to overcome the deficiency in the prior art of lacking a pipe joint wall plate mounting structure that can ensure both stable installation and high sealing, the utility model provides a through-wall straight-through joint that is stable in installation and highly sealed.

[0007] The technical solution of the utility model to solve the technical problem is: a wall-penetrating straight-through joint with stable installation and high sealing performance, comprising:

[0008] The joint body is in the shape of a branch pipe, and its two ends are respectively a water inlet section and a water outlet section, the end of the water inlet section is provided with a water inlet, and the end of the water outlet section is provided with a water outlet;

[0009] Also includes a fixing ring and a sealing sleeve;

[0010] The joint body is further provided with a connecting section between the water inlet section and the water outlet section, the sealing sleeve is sleeved on the connecting section, the joint body can be inserted into the hole in the wall panel, and the sealing sleeve is sealed between the outer surface of the connecting section and the inner wall of the hole in the wall panel;

[0011] A circle of fixing ribs is protruded from the connecting section near the water inlet section. When the joint body is inserted into the hole of the wall panel, the fixing ribs can be pressed against one side of the wall panel, while the fixing ring can extend from the water outlet section to the joint body and form a tight contact with the other side of the wall panel. The fixing ribs are also provided with a plurality of threaded holes, and the fixing ring is also provided with a plurality of bolt holes. By sequentially passing fixing bolts through the bolt holes and the wall panel and then tightening them into the threaded holes, the joint body and the fixing ring can be connected to the wall panel to prevent the joint body from moving relative to the wall panel.

[0012] The connecting section is also provided with a circle of limiting steps, and a plurality of anti-rotation ribs are provided around the limiting steps. The anti-rotation ribs can form a snap fit with the inner wall of the wall panel hole to prevent the joint body from rotating relative to the wall panel.

[0013] Furthermore, a sealing rib is protruding from the circumference of one end of the sealing sleeve, and this end is arranged close to the water outlet section of the joint body. When the fixing ring is connected to the wall panel, the sealing rib is located between the fixing ring and the wall panel, and one side of the sealing rib is in contact with the fixing ring, and the other side is in contact with the wall panel.

[0014] Furthermore, a circle of limiting ribs is protruded from the connecting section near the water outlet section. When the sealing sleeve is mounted on the connecting section, one end of the sealing sleeve abuts against the limiting step, and the other end abuts against the limiting ribs. When the fixing ring is mounted on the joint body and fits with the sealing ribs of the sealing ring, the outer wall of the fixing ring is flush with the outer wall of the limiting ribs.

[0015] Furthermore, a guide slope is provided on the inner side of the opening at the other end of the sealing sleeve. When this end of the sealing ring sleeve is sleeved on the joint body from the water outlet section, the guide slope can form a tight contact with the limiting rib, and enable the sealing sleeve to be deformed under the action of the limiting rib, so that the sealing sleeve can pass over the limiting rib and be sleeved on the connecting section of the joint body.

[0016] Furthermore, a matching slope is provided on the limiting step. When the sealing sleeve is sleeved on the connecting section of the joint body, the matching slope can form a tight fit with the guiding slope.

[0017] Furthermore, a sealing ring is included, which is sleeved on the connecting section of the joint body, and the sealing sleeve is arranged close to the water inlet section of the joint body. When the joint body is connected to the wall panel, the sealing ring is located between the fixed rib and the wall panel, and one side of the sealing ring is in contact with the fixed rib, and the other side is in contact with the wall panel.

[0018] Furthermore, a first through hole is opened on the sealing rib of the sealing sleeve and a second through hole is opened on the sealing ring. Both the first through hole and the second through hole can be used for fixing bolts to pass through; an avoidance groove for avoiding the anti-rotation rib is also opened on the inner ring wall of the sealing ring.

[0019] Furthermore, a countersunk groove is provided on one side of the fixing ring close to the water outlet section, and the countersunk groove is connected to the bolt hole. After the fixing bolt passes through the bolt hole, its head can be engaged in the countersunk groove.

[0020] Furthermore, the surfaces of the water inlet section and the water outlet section of the joint body are provided with a plurality of sealing grooves. When an external water pipe is connected to the water inlet section or the water outlet section, the inner tube wall of the external water pipe can be embedded in the sealing groove to form a sealed fit between the external water pipe and the water inlet section or the water outlet section.

[0021] Installation method of this utility model:

[0022] First, put the sealing ring from the water outlet section to the joint body, and move the sealing ring to the connecting section to make it fit with the fixed rib, and then align the water outlet section of the joint body with the hole on the wall panel from the back side of the wall panel and plug it in, so that the water outlet section of the joint body can pass through the wall panel or even the front side of the wall panel, at this time the connecting section will be located in the hole of the wall panel, and the anti-rotation rib on the connecting section can also be snapped into the groove opened on the wall of the wall panel hole, and the sealing ring has been clamped between the fixed rib and the wall panel, and then the sealing sleeve can be removed from The water outlet section is sleeved onto the joint body, and the sealing sleeve is moved so that the guide slope at one end is in contact with the matching slope on the limiting step. At the same time, the sealing rib on the sealing sleeve is also fitted with the wall panel. The fixing ring is then sleeved from the water outlet section onto the joint body and is in contact with the sealing rib. Finally, the fixing bolts can be passed through the bolt hole, the first through hole and the second through hole in turn, and then the bolts can be tightened into the bolt holes. At this point, the entire joint body is connected to the wall panel, and a sealed fit between the joint head body and the wall panel is achieved.

[0023] The beneficial effects of the present invention are:

[0024] 1. Fixed ribs and fixed rings are respectively provided at both ends of the connecting section of the joint body, and the fixed ribs and fixed rings are connected by fixing bolts to realize the installation of the joint body on the wallboard. The joint body is also provided with anti-rotation ribs to ensure that the joint body does not rotate relative to the wallboard, thereby improving the stability of the joint body after installation on the wallboard. In addition, the provision of the sealing sleeve can ensure that liquid does not enter the holes of the wallboard through the gap between the joint body and the wallboard and cause corrosion, effectively avoiding the loosening of the joint body due to hole corrosion;

[0025] 2. The sealing sleeve not only covers the connecting section of the joint body, but also has a sealing rib that fits between the fixing ring and the wall panel, further ensuring the sealing between the water outlet section of the joint body and the wall panel, and preventing liquid from entering the holes in the wall panel during water use at the water outlet section;

[0026] 3. A sealing ring is also provided, which can achieve sealing cooperation between the water inlet section of the joint body and the wall panel, so that the sealing performance of the straight joint is further improved;

[0027] 4. The connection structure at both ends of the joint body for connecting the water pipe is simple and effective. It can quickly connect and seal with the external water pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural diagram of embodiment 1 of the present utility model.

[0029] Figure 2 It is an explosion diagram of the first embodiment of the present invention.

[0030] Figure 3 It is a cross-sectional view of embodiment 1 of the present utility model.

[0031] Figure 4 It is a structural schematic diagram of the sealing sleeve in the first embodiment of the present utility model.

[0032] Figure 5 It is a structural schematic diagram of the fixing ring in the first embodiment of the present utility model.

[0033] Figure 6 It is a structural schematic diagram of the connector body in the first embodiment of the present invention.

[0034] Figure 7 This is a schematic diagram of the state after the connector body in the second embodiment of the present invention is installed on the wall and connected to the water pipe.

[0035] Reference numerals in the figure: 1, connector body; 11, water inlet; 111, water inlet; 12, water outlet; 121, water outlet; 13, connecting section; 14, fixing rib; 141, threaded hole; 15, limiting step; 151, anti-rotation rib; 152, matching slope; 16, limiting rib; 17, sealing groove;

[0036] 2. Retaining ring; 21. Bolt hole; 22. Countersunk groove;

[0037] 3. Sealing sleeve; 31. Sealing rib; 311. First through hole; 32. Guide slope;

[0038] 4. Fixing bolts;

[0039] 5. Sealing ring; 51. Second through hole; 52. Avoidance groove;

[0040] 6. Wall panels;

[0041] 7. External water pipes. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0043] It should be understood that although terms such as upper, middle, lower, top, end, etc. appear in this document to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish elements from each other for ease of understanding, and are not used to define any direction or order limitation.

[0044] Example 1

[0045] Combine Figures 1 to 6 The wall-penetrating straight-through joint shown is a stable installation and high sealing performance, comprising a joint body 1, a fixing ring 2 and a sealing sleeve 3; the joint body 1 is in the shape of a branch pipe, and its two ends are respectively an inlet section 11 and a water outlet section 12, the end of the inlet section 11 is provided with a water inlet 111, and the end of the outlet section 12 is provided with a water outlet 121; the joint body 1 is further provided with a connecting section 13 between the inlet section 11 and the outlet section 12, the sealing sleeve 3 is sleeved on the connecting section 13, the joint body 1 can be passed through the hole on the wall panel 6, and the sealing sleeve 3 is sealed between the outer surface of the connecting section 13 and the inner wall of the hole in the wall panel 6; a circle of fixing ribs 14 is protruded on the connecting section 13 near the water inlet section 11, and when the joint body 1 is passed through the hole in the wall panel 6, the The fixing rib 14 can be pressed against one side of the wall panel 6, and the fixing ring 2 can extend from the water outlet section 12 to the joint body 1 and form a press against the other side of the wall panel 6; the fixing rib 14 is also provided with a plurality of threaded holes 141, and the fixing ring 2 is also provided with a plurality of bolt holes 21. The fixing bolts 4 pass through the bolt holes 21 and the wall panel 6 in turn and are tightened in the threaded holes 141, so as to realize the connection between the joint body 1 and the fixing ring 2 on the wall panel 6 to prevent the joint body 1 from moving relative to the wall panel 6; a circle of limiting steps 15 is also protruding on the connecting section 13, and a plurality of anti-rotation ribs 151 are protruding around the limiting steps 15. The anti-rotation ribs 151 can form a snap fit with the inner wall of the hole in the wall panel 6 to prevent the joint body 1 from rotating relative to the wall panel 6.

[0046] Combine Figure 2 、 Figure 3 and Figure 4 As shown, in this embodiment, a sealing rib 31 is further provided on the circumferential side of one end of the sealing sleeve 3, and this end is arranged close to the water outlet section 12 of the joint body 1. When the fixing ring 2 is connected to the wall panel 6, the sealing rib 31 is located between the fixing ring 2 and the wall panel 6, and one side of the sealing rib 31 is in contact with the fixing ring 2, and the other side is in contact with the wall panel 6.

[0047] Combine Figure 2 、 Figure 3 and Figure 6As shown, in this embodiment, a circle of limiting ribs 16 is further protruded on the connecting section 13 near the water outlet section 12. When the sealing sleeve 3 is sleeved on the connecting section 13, one end of the sealing sleeve 3 abuts against the limiting step 15, and the other end abuts against the limiting rib 16; and when the fixing ring 2 is sleeved on the joint body 1 and fits with the sealing rib 31 of the sealing ring, the outer wall of the fixing ring 2 is flush with the outer wall of the limiting rib 16.

[0048] Among them Figure 4 As shown in the figure, in this embodiment, a guide slope 32 is provided on the inner side of the opening of the other end of the sealing sleeve 3. When the end of the sealing ring 5 is sleeved on the joint body 1 from the water outlet section 12, the guide slope 32 can form a tight contact with the limiting rib 16, and enable the sealing sleeve 3 to be deformed under the action of the limiting rib 16, so that the sealing sleeve 3 can pass over the limiting rib 16 and be sleeved on the connecting section 13 of the joint body 1.

[0049] Combine Figure 3 and Figure 4 As shown, in this embodiment, the limiting step 15 is further provided with a matching slope 152 . When the sealing sleeve 3 is sleeved on the connecting section 13 of the joint body 1 , the matching slope 152 can form a tight fit with the guiding slope 32 .

[0050] Combine Figure 2 and Figure 3 As shown, in this embodiment, a sealing ring 5 is also included, and the sealing ring 5 is sleeved on the connecting section 13 of the joint body 1, and the sealing sleeve 3 is arranged near the water inlet section 11 of the joint body 1. When the joint body 1 is connected to the wall panel 6, the sealing ring 5 is located between the fixing rib 14 and the wall panel 6, and one side of the sealing ring 5 is in contact with the fixing rib 14, and the other side is in contact with the wall panel 6.

[0051] Combine Figure 2 and Figure 4 As shown, in this embodiment, a first through hole 311 is opened on the sealing rib 31 of the sealing sleeve 3, and a second through hole 51 is opened on the sealing ring 5. Both the first through hole 311 and the second through hole 51 can allow the fixing bolt 4 to pass through; the inner ring wall of the sealing ring 5 is also provided with an avoidance groove 52 for avoiding the anti-rotation rib 151.

[0052] Among them Figure 5 As shown in the figure, in this embodiment, a countersunk groove 22 is further provided on the side of the fixing ring 2 close to the water outlet section 12. The countersunk groove 22 is connected to the bolt hole 21. After the fixing bolt 4 passes through the bolt hole 21, its head can be engaged with the countersunk groove 22.

[0053] Combine Figure 1 、 Figure 2 、 Figure 3 and Figure 6 As shown, in this embodiment, the surfaces of the water inlet section 11 and the water outlet section 12 of the joint body 1 are provided with a plurality of sealing grooves 17. When the external water pipe 7 is connected to the water inlet section 11 or the water outlet section 12, the inner tube wall of the external water pipe can be embedded in the sealing groove 17, so that a sealing fit is formed between the external water pipe 7 and the water inlet section 11 or the water outlet section 12.

[0054] The installation method of this embodiment is:

[0055] First, put the sealing ring 5 on the joint body 1 from the water outlet section 12, and move the sealing ring 5 to the connecting section 13 so that it fits with the fixing rib 14, and then align the water outlet section 12 of the joint body 1 with the hole on the wall panel 6 from the back side of the wall panel 6 and plug it in, so that the water outlet section 12 of the joint body 1 can pass through the wall panel 6 or even the front side of the wall panel 6. At this time, the connecting section 13 will be located in the hole of the wall panel 6, and the anti-rotation rib 151 on the connecting section 13 can also be snap-fitted into the groove opened on the hole wall of the wall panel 6, and at this time the sealing ring 5 has been clamped between the fixing rib 14 and the wall panel 6, and then the sealing sleeve 3 can be also put out from the outlet The water section 12 is sleeved onto the joint body 1, and the sealing sleeve 3 is moved so that the guide slope 32 at one end thereof abuts against the matching slope 152 on the limiting step 15. At the same time, the sealing rib 31 on the sealing sleeve 3 also fits against the wall panel 6. The fixing ring 2 is then sleeved onto the joint body 1 from the water outlet section 12 and abuts against the sealing rib 31. Finally, the fixing bolt 4 can be passed through the bolt hole 21, the first through hole 311 and the second through hole 51 in sequence, and then the bolt is tightened into the bolt hole 21. At this point, the entire joint body 1 is connected to the wall panel 6, and a sealed fit between the joint head body and the wall panel 6 is achieved.

[0056] The advantages of this embodiment are: the installation of the joint body on the wall is achieved by relying on the fixing ribs and the fixing ring, the stability of the installation is improved by relying on the setting of the anti-rotation ribs, and the sealing between the joint body and the wall panel is ensured by the setting of the sealing sleeve and the sealing ring.

[0057] Example 2

[0058] Combine Figure 7 As shown, this embodiment shows the installation status of the solution in the above embodiment 1 on the wall:

[0059] Among them Figure 7As shown, in this embodiment, when the joint body 1 is installed on the wall panel 6, the water outlet section 12 of the joint body 1 is located on the outside of the wall panel 6, and is sealed between the fixing ring 2 and the wall panel 6 through the sealing rib 31 of the sealing sleeve 3 to achieve relative sealing between the water outlet section 12 of the joint body 1 and the hole of the wall panel 6, and the water inlet section 11 of the joint body 1 is located on the inside of the wall panel 6, and is sealed between the fixing rib 14 and the wall panel 6 through the sealing ring 5 to achieve relative sealing between the water inlet section 11 of the joint body 1 and the hole of the wall panel 6; and the water outlet section 12 and the water inlet section 11 of the joint body 1 are both sleeved with external water pipes 7 to achieve communication between the water pipes inside and outside the wall panel 6.

[0060] In this embodiment, the remaining structures, methods and advantages are consistent with those of the above-mentioned embodiment 1 and will not be described in detail here.

[0061] The above specific embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the embodiments as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A wall-penetrating straight-through joint with stable installation and high sealing performance, comprising: The joint body (1) is in the shape of a branch pipe, and its two ends are respectively a water inlet section (11) and a water outlet section (12); a water inlet (111) is provided at the end of the water inlet section (11), and a water outlet (121) is provided at the end of the water outlet section (12); It is characterized by: It also includes a fixing ring (2) and a sealing sleeve (3); The joint body (1) is further provided with a connecting section (13) between the water inlet section (11) and the water outlet section (12); the sealing sleeve (3) is sleeved on the connecting section (13); the joint body (1) can be inserted into a hole on the wallboard (6), and the sealing sleeve (3) is sealed between the outer surface of the connecting section (13) and the inner wall of the hole in the wallboard (6); A circle of fixing ribs (14) is provided on the connecting section (13) near the water inlet section (11). When the joint body (1) is inserted into the hole of the wall panel (6), the fixing ribs (14) can be pressed against one side of the wall panel (6), and the fixing ring (2) can be extended from the water outlet section (12) to the joint body (1) and pressed against the other side of the wall panel (6). The fixing ribs (14) are provided with a plurality of threaded holes (141), and the fixing ring (2) is provided with a plurality of bolt holes (21). By passing the fixing bolts (4) through the bolt holes (21) and the wall panel (6) in sequence and then being tightened into the threaded holes (141), the connection between the joint body (1) and the fixing ring (2) on the wall panel (6) can be achieved, so as to prevent the joint body (1) from moving relative to the wall panel (6). A circle of limiting steps (15) is also protruding from the connecting section (13), and a plurality of anti-rotation ribs (151) are protruding from the circumference of the limiting steps (15). The anti-rotation ribs (151) can form a snap fit with the inner wall of the hole of the wall panel (6) to prevent the joint body (1) from rotating relative to the wall panel (6).

2. A wall-penetrating straight-through joint with stable installation and high sealing performance according to claim 1, characterized in that: A sealing rib (31) is also protruded from the periphery of one end of the sealing sleeve (3), and the end is arranged close to the water outlet section (12) of the joint body (1). When the fixing ring (2) is connected to the wall panel (6), the sealing rib (31) is located between the fixing ring (2) and the wall panel (6), so that one side of the sealing rib (31) is in contact with the fixing ring (2) and the other side is in contact with the wall panel (6).

3. A wall-penetrating straight-through joint with stable installation and high sealing performance according to claim 2, characterized in that: A circle of limiting ribs (16) is also protruded on the connecting section (13) near the water outlet section (12); when the sealing sleeve (3) is sleeved on the connecting section (13), one end of the sealing sleeve (3) abuts against the limiting step (15), and the other end abuts against the limiting ribs (16); and when the fixing ring (2) is sleeved on the joint body (1) and fits against the sealing ribs (31) of the sealing ring, the outer wall of the fixing ring (2) is flush with the outer wall of the limiting ribs (16).

4. A wall-penetrating straight-through joint with stable installation and high sealing performance according to claim 2, characterized in that: A guide slope (32) is provided on the inner side of the opening at the other end of the sealing sleeve (3). When the end of the sealing ring (5) is sleeved from the water outlet section (12) to the joint body (1), the guide slope (32) can form a tight contact with the limiting rib (16), and the sealing sleeve (3) can be deformed under the action of the limiting rib (16), so that the sealing sleeve (3) can pass over the limiting rib (16) and be sleeved on the connecting section (13) of the joint body (1).

5. A wall-penetrating straight-through joint with stable installation and high sealing performance according to claim 4, characterized in that: The limiting step (15) is also provided with a matching slope (152). When the sealing sleeve (3) is sleeved on the connecting section (13) of the joint body (1), the matching slope (152) can form a tight fit with the guide slope (32).

6. A wall-penetrating straight-through joint with stable installation and high sealing performance according to claim 2, characterized in that: The invention also includes a sealing ring (5), which is sleeved on the connecting section (13) of the joint body (1), and the sealing sleeve (3) is arranged close to the water inlet section (11) of the joint body (1). When the joint body (1) is connected to the wallboard (6), the sealing ring (5) is located between the fixing rib (14) and the wallboard (6), so that one side of the sealing ring (5) is in contact with the fixing rib (14) and the other side is in contact with the wallboard (6).

7. A wall-penetrating straight-through joint with stable installation and high sealing performance according to claim 6, characterized in that: A first through hole (311) is provided on the sealing rib (31) of the sealing sleeve (3), and a second through hole (51) is provided on the sealing ring (5). Both the first through hole (311) and the second through hole (51) can be used for the fixing bolt (4) to pass through. An avoidance groove (52) for avoiding the anti-rotation rib (151) is also provided on the inner ring wall of the sealing ring (5).

8. A wall-penetrating straight-through joint with stable installation and high sealing performance according to any one of claim 1, characterized in that: A countersunk groove (22) is further provided on one side of the fixing ring (2) close to the water outlet section (12). The countersunk groove (22) is connected to the bolt hole (21). After the fixing bolt (4) passes through the bolt hole (21), its head can be engaged in the countersunk groove (22).

9. A wall-penetrating straight-through joint with stable installation and high sealing performance according to any one of claim 1, characterized in that: The surfaces of the water inlet section (11) and the water outlet section (12) of the joint body (1) are both provided with a plurality of sealing grooves (17). When an external water pipe (7) is connected to the water inlet section (11) or the water outlet section (12), the inner pipe wall of the external water pipe can be embedded in the sealing grooves (17), so that a sealing fit is formed between the external water pipe (7) and the water inlet section (11) or the water outlet section (12).

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