An improved pipe connector

Abstract

The utility model discloses an improved pipeline connector, including connector body and anticreep, anticreep includes first arc anticreep piece and second arc anticreep piece of detachable connection to each other, be equipped with first fixed plate and second fixed plate on the connector body, be equipped with first long slotted hole on the first fixed plate, be equipped with first limit block on the first arc anticreep piece, be equipped with second long slotted hole on the second fixed plate, be equipped with second limit block on the second arc anticreep piece. The utility model discloses an improved pipeline connector, when the pipeline is heated and expands or contracts when cold and is reduced to cause the pipe diameter change, only need to first loosen first arc anticreep piece and second arc anticreep piece, adjust the distance between first arc anticreep piece and second arc anticreep piece again, make first arc anticreep piece and second arc anticreep piece with the pipe diameter of changed pipeline adapt, again through first arc anticreep piece and second arc anticreep piece and tighten the pipeline, and the suitability is better.

Description

Technical Field

[0001] This utility model belongs to the field of pipe connection technology, and specifically relates to an improved pipe connector. Background Technology

[0002] Pipe connectors (or pipe repair devices) are a common type of pipe sealing device, typically consisting of a connector body and an elastic anti-slip ring (or metal pressure ring, anti-slip toothed ring, etc.) for clamping and securing the pipe.

[0003] For example, Chinese Patent Publication No. CN208237302U discloses a flange quick connector, which consists of a flange-type connector body. A connecting flange is integrally formed on the left end face of the flange-type connector body, and a connecting surface is integrally formed on the right end face. The flange-type connector body has an internal hollow tube, and within the hollow tube near the right end face connecting surface, a sealing rubber ring, a pressure ring, an anti-detachment ring, and a reinforced anti-detachment cover are sequentially installed. The reinforced anti-detachment cover is installed on the connecting surface of the flange-type connector body by anti-detachment reinforcing bolts. The flange-type connector body of this utility model has an embedded sealing rubber ring, which achieves strong sealing performance under the action of the pressure ring. The four anti-detachment reinforcing bolts on the reinforced anti-detachment cover lock the pressure ring to the gate valve body, thereby achieving a strong sealing effect. The flange-type connector body is very convenient for quick connection, installation, and repair in case of pipeline damage.

[0004] The aforementioned pipe connector incorporates a sealing rubber ring embedded within the flange-type joint body. Under the action of the pressure ring, the sealing rubber ring achieves a strong sealing performance. The four anti-loosening reinforcement bolts on the anti-loosening cover lock the pressure ring to the gate valve body, thereby achieving a strong sealing effect. However, it still has the following defects: due to the poor versatility of its anti-loosening ring structure, it can only be used on fixed pipe diameters. If the pipe diameter increases due to thermal expansion or decreases due to cooling during use, the anti-loosening ring may be damaged, affecting the anti-loosening effect, resulting in poor applicability.

[0005] In view of this, the applicant conducted in-depth research on the above-mentioned issues, which led to the occurrence of this case. Summary of the Invention

[0006] The purpose of this utility model is to provide an improved pipe connector with a simple structure and good applicability.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: An improved pipe connector includes a connector body and an anti-detachment ring disposed at one end of the connector body. The anti-detachment ring includes at least two mutually detachably connected first arc-shaped anti-detachment blocks and second arc-shaped anti-detachment blocks. The connector body has a first fixing plate corresponding to the position of the first arc-shaped anti-detachment block and a second fixing plate corresponding to the position of the second arc-shaped anti-detachment block. At least one first limiting block extends from the outer side of the first arc-shaped anti-detachment block toward the first fixing plate. The first fixing plate has a first elongated slot through which the first limiting block passes, and the first limiting block passes through the first elongated slot and is located on the outer side of the first fixing plate. At least one second limiting block extends from the outer side of the second arc-shaped anti-detachment block toward the second fixing plate. The second fixing plate has a second elongated slot through which the second limiting block passes, and the second limiting block passes through the second elongated slot and is located on the outer side of the second fixing plate.

[0008] Furthermore, the first arc-shaped anti-detachment block has a first lug on both sides in the radial direction, and the second arc-shaped anti-detachment block has a corresponding second lug on both sides in the radial direction. Each first lug and the corresponding second lug are detachably connected by a first bolt fastener. Both the first lug and the second lug have threaded holes for the first bolt fastener to pass through.

[0009] Furthermore, the first fixing plate is an arc shape that matches the shape of the first arc-shaped anti-detachment block. The outer side of the first fixing plate is provided with a plurality of first clamping bolts whose shaft core direction is located in the radial direction of the anti-detachment ring. The first clamping bolts are used to radially lock the first arc-shaped anti-detachment block. The outer periphery of the first arc-shaped anti-detachment block is provided with a first annular groove for accommodating the tail of the first clamping bolt.

[0010] Furthermore, one end of the connector body is provided with two anti-detachment rings, which are spaced apart along the axial direction of the port portion of the connector body.

[0011] Furthermore, the second fixing plate is an arc shape that matches the shape of the second arc-shaped anti-detachment block. Several second clamping bolts with the core direction located in the radial direction of the anti-detachment ring are provided on the outer side of the second fixing plate. The second clamping bolts are used to radially lock the second arc-shaped anti-detachment block.

[0012] Furthermore, the outer periphery of the second arc-shaped anti-detachment block is provided with a second annular groove for accommodating the tail of the second clamping bolt.

[0013] Furthermore, both the first arc-shaped anti-detachment block and the second arc-shaped anti-detachment block have anti-detachment teeth on their inner sides for clamping the pipe.

[0014] Furthermore, both the first fixing plate and the second fixing plate are fixed on a mounting flange, which is detachably mounted on the connector body, and the diameter of the mounting flange is adapted to the diameter of the connector body.

[0015] Furthermore, the first fixing plate is fixed on the first arc-shaped flange block, and the second fixing plate is fixed on the second arc-shaped flange block. The first arc-shaped flange block and the second arc-shaped flange block form a complete flange. The flange is detachably mounted on the connector body, and the diameter of the flange is adapted to the diameter of the connector body.

[0016] Furthermore, the first arc-shaped flange block has a first connecting portion on both sides in the radial direction, and a third lug on the outer side of each of the two first connecting portions. The second arc-shaped flange block has a second connecting portion on both sides in the radial direction that can be joined with the corresponding first connecting portion. A fourth lug is provided on the outer side of each of the two second connecting portions. When the first arc-shaped flange block and the second arc-shaped flange block form the flange, the third lug and the fourth lug on the same side are attached vertically and placed on the same vertical plane. A fifth lug is provided on the connector body at the position corresponding to the third lug on both sides.

[0017] By adopting the aforementioned design scheme, the beneficial effects of this utility model are: 1. The improved pipe connector of this utility model can adapt to changes in pipe diameter caused by pipe expansion due to heat or contraction due to cold. Simply loosen the first and second arc-shaped anti-detachment blocks, move the first arc-shaped anti-detachment block closer to or further away from the first fixing plate, and correspondingly move the second arc-shaped anti-detachment block closer to or further away from the second fixing plate. This ensures that the distance between the first and second arc-shaped anti-detachment blocks matches the changed pipe diameter. Then, retighten the first bolt fastener to press the first and second arc-shaped anti-detachment blocks firmly against the pipe. This design offers good applicability.

[0018] 2. Since the first limiting block is adapted to the first long slot, the first long slot not only allows the first limiting block to move, but also provides a certain limiting effect on the first limiting block. Since the second limiting block is adapted to the second long slot, the second long slot not only allows the second limiting block to move, but also provides a certain limiting effect on the second limiting block. This makes the first arc-shaped anti-detachment block and the second arc-shaped anti-detachment block more stable in use.

[0019] Furthermore, the tightening effect of the first and second clamping bolts on the anti-loosening ring achieves multiple anti-loosening effects.

[0020] Furthermore, the first and second fixing plates are detachably mounted from the connector body, which allows for easy replacement of individual parts after the first and second fixing plates are damaged, without having to replace the entire connector body, thus saving costs. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the improved pipe connector of this utility model.

[0022] Figure 2 This is a schematic diagram of the improved pipe connector of this utility model. In the diagram, the anti-detachment ring and the connector body are separated.

[0023] Figure 3 This is a schematic diagram of the structure of Embodiment 2 of the present invention. The first arc-shaped flange block and the second arc-shaped flange block are in a decomposed state in the figure. The anti-detachment ring structure is omitted in the figure.

[0024] Figure 4 This is a schematic diagram of the improved pipe connector of this utility model. Two anti-detachment rings are provided at one end of the connector body, and the two anti-detachment rings are spaced apart along the axial direction of the port of the connector body.

[0025] In the picture: 1- Connector body; 11-First fixing plate; 12-First elongated slot; 13-First clamping bolt; 14-Second fixing plate; 15 - Second elongated slot; 16 - Second clamping bolt; 17-First arc-shaped flange block; 18-Second arc-shaped flange block; 171 - First connecting part; 172 - Third lug; 181 - Second connecting part; 182 - Fourth lug; 19-Fifth auricle; 2-Anti-detachment ring; 20-Anti-detachment tooth; 21-First arc-shaped anti-detachment block; 22-Second arc-shaped anti-detachment block; 23 - First bolt fastener; 211 - First lug; 212 - First limiting block; 213 - First annular groove 221 - Second lug; 222 - Second limiting block; 223 - Second annular groove. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1, like Figures 1 to 2 As shown, an improved pipe connector includes a connector body 1 and at least one anti-detachment ring 2 disposed at one end of the connector body 1. It should be noted that the connector body 1 of this invention can be a conventional one-piece design or a conventional split design (split design is also known as a split joint), depending on the user's actual needs. This invention only uses a one-piece connector body 1 as an example. The improvement of this invention lies in that the anti-detachment ring 2 includes at least two mutually detachably connected first arc-shaped anti-detachment blocks 21 and second arc-shaped anti-detachment blocks 22. In actual use, the first arc-shaped anti-detachment block 21 and the second arc-shaped anti-detachment block 22 can be integrally cast or assembled from multiple segments, depending on the user's actual needs. This utility model does not impose any limitations on this. Accordingly, both the first arc-shaped anti-detachment block 21 and the second arc-shaped anti-detachment block 22 are semi-circular. The anti-detachment ring 2 is formed by the first arc-shaped anti-detachment block 21 and the second arc-shaped anti-detachment block 22. The first arc-shaped anti-detachment block 21 and the second arc-shaped anti-detachment block 22 enclose and lock the pipe tightly. Specifically, the first arc-shaped anti-detachment block 21 has a first arc-shaped anti-detachment block 22 on both sides in the radial direction. The first lug 211 and the corresponding second lug 221 are provided on both sides of the second arc-shaped anti-detachment block 22 in the radial direction. Each first lug 211 and the corresponding second lug 221 are connected to each other by a first bolt fastener 23. The first bolt fastener 23 can adopt a conventional structure with a bolt and nut. Correspondingly, the first lug 211 and the second lug 221 are provided with threaded holes for the first bolt fastener 23 to pass through. It should be noted that when it is necessary to cover a pipe with a large diameter, the first arc-shaped anti-detachment block 21 and the second arc-shaped anti-detachment block 22 need to be... The height is made relatively large to achieve a better clamping effect. When the height of the first arc-shaped anti-detachment block 21 and the second arc-shaped anti-detachment block 22 is large, multiple first bolt fasteners 23 need to be set in the height direction of the first arc-shaped anti-detachment block 21 and the second arc-shaped anti-detachment block 22 to lock the first arc-shaped anti-detachment block 21 and the second arc-shaped anti-detachment block 22. Correspondingly, multiple first lugs 211 need to be set in the height direction of the first arc-shaped anti-detachment block 21 for the first bolt fasteners 23 to pass through, and multiple second lugs 221 need to be set in the height direction of the second arc-shaped anti-detachment block 22.

[0028] A first fixing plate 11 is provided on the connector body 1 at the position corresponding to the first arc-shaped anti-detachment block 21. The first fixing plate 11 can be set on the connector body 1 by welding, integral molding, or detachable connection. The specific method can be selected according to the actual needs of the user. In this embodiment, the first fixing plate 11 is integrally molded on the connector body 1. At least one first limiting block 212 extends from the outer side of the first arc-shaped anti-detachment block 21 towards the first fixing plate 11. The first fixing plate 11 has a formwork for the first limiting block 212 to pass through. The number of first long slots 12 corresponds to the number of first limiting blocks 212. The height of the first long slots 12 is adapted to the height of the first limiting blocks 212. The first limiting blocks 212 pass through the first long slots 12 and are located outside the first fixing plate 11. The first limiting blocks 212 can be installed on the first arc-shaped anti-detachment block 21 by welding, integral molding or detachment. The specific method is not limited here. Correspondingly, there needs to be space between the first arc-shaped anti-detachment block 21 and the first fixing plate 11 for the first arc-shaped anti-detachment block 21 to move. The connector body 1 is provided with a second fixing plate 14 corresponding to the position of the second arc-shaped anti-detachment block 22. At least one second limiting block 222 extends from the outer side of the second arc-shaped anti-detachment block 22 toward the second fixing plate 14. The second fixing plate 14 is provided with a second elongated slot 15 for the second limiting block 222 to pass through. The number of second elongated slots 15 corresponds to the number of second limiting blocks 222, and the second elongated slots 15 are adapted to the second limiting blocks 222. The second limiting block 222 passes through the second elongated slots 15 and is located on the outer side of the second fixing plate 14. Preferably, the second fixing plate 14 is integrally formed on the connector body 1. Correspondingly, there needs to be space between the second arc-shaped anti-detachment block 22 and the second fixing plate 14 for the second arc-shaped anti-detachment block 22 to move.

[0029] Preferably, when it is necessary to cover pipes with large diameters, such as Figure 4 As shown, one end of the connector body 1 is provided with two anti-detachment rings 2. The two anti-detachment rings 2 are spaced apart along the axial direction of the port portion of the connector body 1. Correspondingly, the first fixing plate 11 is provided with a plurality of first elongated slots 12 corresponding to each anti-detachment ring 2, and the second fixing plate 14 is provided with a plurality of second elongated slots 15 corresponding to each anti-detachment ring 2. This arrangement can achieve a better covering effect.

[0030] It should be noted that when it is necessary to cover pipes with larger diameters, two or more first limiting blocks 212 can be set on the first arc-shaped anti-detachment block 21. The first limiting blocks 212 are arranged at intervals along the circumference of the first arc-shaped anti-detachment block 21. Correspondingly, the first fixing plate 11 is provided with a first elongated slot 12 for the two first limiting blocks 212 to pass through. Similarly, two or more second limiting blocks 222 are set on the second arc-shaped anti-detachment block 22. The second limiting blocks 222 are arranged at intervals along the second arc-shaped anti-detachment block 21. The anti-detachment blocks 22 are arranged circumferentially, and the second fixing plate 14 is provided with a second long slot 15 for the two second limiting blocks 222 to pass through, so as to ensure the covering effect of the anti-detachment ring 2. Correspondingly, after the first limiting block 212 extends into the first long slot 12, the length direction of the first long slot 12 leaves space for the deformation of the first limiting block 212. After the second limiting block 222 extends into the second long slot 15, the length direction of the second long slot 15 leaves space for the deformation of the second limiting block 222.

[0031] In use, first insert the first limiting block 212 on the first arc-shaped anti-detachment block 21 into the first long slot 12 on the first fixing plate 11, so that the first limiting block 212 extends to the outside of the first fixing plate 11. Then insert the second limiting block 222 on the second arc-shaped anti-detachment block 22 into the second long slot 15 on the second fixing plate 14, so that the second limiting block 222 extends to the outside of the second fixing plate 14. Then, put the connector body 1 on the pipe, and form an anti-detachment ring 2 by the first arc-shaped anti-detachment block 21 and the second arc-shaped anti-detachment block 22 to cover the pipe. Then, lock the first lug 211 and the corresponding second lug 221 with the first bolt fastener 23, so that the first arc-shaped anti-detachment block 21 and the second arc-shaped anti-detachment block 22 lock the pipe.

[0032] When the pipe expands due to heat, causing its diameter to increase, simply loosen the first bolt fastener 23 to move the first arc-shaped anti-detachment block 21 and the first limiting block 212 closer to the first fixing plate 11, and the second arc-shaped anti-detachment block 22 and the second limiting block 222 closer to the second fixing plate 14. This ensures the distance between the first arc-shaped anti-detachment block 21 and the second arc-shaped anti-detachment block 22 matches the pipe diameter. Then, tighten the first bolt fastener 23 to press the first arc-shaped anti-detachment block 21 and the second arc-shaped anti-detachment block 22 against the pipe. When the pipe shrinks due to cold, simply adjust the first bolt fastener 23 to move the first arc-shaped anti-detachment block 21 away from the first fixing plate 11 and the second arc-shaped anti-detachment block 22 away from the second fixing plate 14. The first arc-shaped anti-detachment block 21 and the second arc-shaped anti-detachment block 22 are brought close together, so that the distance between the first arc-shaped anti-detachment block 21 and the second arc-shaped anti-detachment block 22 is adapted to the pipe diameter. Then, the first bolt fastener 23 is tightened so that the first arc-shaped anti-detachment block 21 and the second arc-shaped anti-detachment block 22 will press the pipe tightly. This has good applicability. Furthermore, since the first limiting block 212 is adapted to the first long slot 12, the first long slot 12 can not only allow the first limiting block 212 to move, but also has a certain limiting effect on the first limiting block 212. Since the second limiting block 222 is adapted to the second long slot 15, the second long slot 15 can not only allow the second limiting block 222 to move, but also has a certain limiting effect on the second limiting block 222. This makes the first arc-shaped anti-detachment block 21 and the second arc-shaped anti-detachment block 22 more stable when in use.

[0033] Preferably, the first fixing plate 11 is an arc shape that matches the shape of the first arc-shaped anti-detachment block 21. When the first arc-shaped anti-detachment block 21 and the first limiting block 212 move outward, they can support the first arc-shaped anti-detachment block 21, and the fit is good. Preferably, the second fixing plate 14 is an arc shape that matches the shape of the second arc-shaped anti-detachment block 22. When the second arc-shaped anti-detachment block 22 and the second limiting block 222 move outward, they can support the second arc-shaped anti-detachment block 22, and the fit is good.

[0034] Preferably, the outer side of the first fixing plate 11 is provided with a plurality of first clamping bolts 13 whose shaft cores are located in the radial direction of the anti-detachment ring 2. The first clamping bolts 13 are used to radially lock the first arc-shaped anti-detachment block 21. The outer side of the second fixing plate 14 is provided with a plurality of second clamping bolts 16 whose shaft cores are located in the radial direction of the anti-detachment ring 2. The structure of the second clamping bolts 16 is the same as that of the first clamping bolts 13. The second clamping bolts 16 are used to radially lock the second arc-shaped anti-detachment block 22. After the first arc-shaped anti-detachment block 21 and the second arc-shaped anti-detachment block 22 have pressed the pipe, the first clamping bolts 13 are then locked and tightened. On the first arc-shaped anti-detachment block 21, the second clamping bolt 16 is locked and pressed against the second arc-shaped anti-detachment block 22; this arrangement achieves multiple anti-detachment effects. Preferably, in this embodiment, the first fixing plate 11 is provided with two first clamping bolts 13, which are arranged at intervals, and the second fixing plate 14 is provided with two second clamping bolts 16, which are arranged at intervals. Correspondingly, the first fixing plate 11 has two threaded holes for the first clamping bolts 13 to pass through, and the second fixing plate 14 has two threaded holes for the second clamping bolts 16 to pass through.

[0035] Preferably, the outer periphery of the first arc-shaped anti-detachment block 21 is provided with a first annular groove 213 for accommodating the tail of the first clamping bolt 13, so as to prevent the first arc-shaped anti-detachment block 21 from detaching from the first clamping bolt 13. Preferably, the outer periphery of the second arc-shaped anti-detachment block 22 is provided with a second annular groove 223 for accommodating the tail of the second clamping bolt 16, so as to prevent the second arc-shaped anti-detachment block 22 from detaching from the second clamping bolt 16.

[0036] Preferably, the inner sides of the first arc-shaped anti-detachment block 21 and the second arc-shaped anti-detachment block 22 are provided with anti-detachment teeth 20 for clamping the pipe, which further enhances the anti-detachment capability.

[0037] It should be noted that in actual use, the above-mentioned anti-detachment ring 2 structure can also be set at the other end of the connector body 1. The connection structure between the connector body 1 and the anti-detachment ring at the other end is the same as described above, so as to improve applicability.

[0038] Example 2, The only difference between this embodiment and Embodiment 1 is that the first fixing plate 11 and the second fixing plate 14 are detachably mounted on the connector body 1. Specifically, as shown... Figure 3As shown, the first fixing plate 11 is fixed on the first arc-shaped flange block 17, and the second fixing plate 14 is fixed on the second arc-shaped flange block 18. The first arc-shaped flange block 17 and the second arc-shaped flange block 18 form a complete flange. This flange is detachably mounted on the connector body 1, and the diameter of the flange is compatible with the diameter of the connector body 1. In actual use, the first arc-shaped flange block 17 and the second arc-shaped flange block 18 can be integrally cast or assembled from multiple sections, depending on the user's actual needs. The first arc-shaped flange block 17 has a first connecting part 1 on both sides in the radial direction. 71. Each of the two first connecting portions 171 has a third lug 172 on its outer side. The second arc-shaped flange block 18 has second connecting portions 181 on both sides in the radial direction, capable of engaging with the corresponding first connecting portions 171. Each of the two second connecting portions 181 has a fourth lug 182 on its outer side. When the first arc-shaped flange block 17 and the second arc-shaped flange block 18 form a complete flange, the first connecting portion 171 and the corresponding second connecting portion 181 engage vertically. The third lug 172 and the fourth lug 182 on the same side are vertically attached and positioned on the same vertical plane, so that each third lug 172 and the corresponding fourth lug 182... The lugs 182 can be interlocked by the second bolt fasteners 3. Correspondingly, the connector body 1 has fifth lugs 19 at the positions of the third lugs 172 on both sides for the second bolt fasteners 3 to engage. By passing the second bolt fasteners 3 through the third lugs 172 and the corresponding fourth lugs 182, and then through the corresponding fifth lugs 19 and locking them, the first fixing plate 11 and the second fixing plate 14 can be fixed to the connector body 1. This design facilitates installation and allows for easy replacement of individual parts if the first fixing plate 11 and the second fixing plate 14 are damaged, without having to replace the entire connector body 1. This saves costs. It should be noted that the first fixing plate 11 and the second fixing plate 14 can also be detached from the connector body 1 using other conventional detachable structures in the art, as long as the first fixing plate 11 and the second fixing plate 14 can be detached and replaced separately. For example, the flange can be cast as a whole and the first fixing plate 11 and the second fixing plate 14 can be fixed on the flange. This arrangement not only makes installation convenient, but also makes it easy to replace the flange separately after the first fixing plate 11 and the second fixing plate 14 are damaged, without having to replace the entire connector body 1, thus saving costs.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An improved pipe connector, characterized in that, The connector includes a connector body and an anti-detachment ring disposed at one end of the connector body. The anti-detachment ring includes at least two mutually detachably connected first arc-shaped anti-detachment blocks and second arc-shaped anti-detachment blocks. The connector body has a first fixing plate corresponding to the position of the first arc-shaped anti-detachment block and a second fixing plate corresponding to the position of the second arc-shaped anti-detachment block. At least one first limiting block extends from the outer side of the first arc-shaped anti-detachment block toward the first fixing plate. The first fixing plate has a first elongated slot through which the first limiting block passes. The first limiting block passes through the first elongated slot and is located on the outer side of the first fixing plate. At least one second limiting block extends from the outer side of the second arc-shaped anti-detachment block toward the second fixing plate. The second fixing plate has a second elongated slot through which the second limiting block passes. The second limiting block passes through the second elongated slot and is located on the outer side of the second fixing plate.

2. The improved pipe connector according to claim 1, characterized in that, The first arc-shaped anti-detachment block has a first lug on both sides in the radial direction, and the second arc-shaped anti-detachment block has a second lug on both sides in the radial direction. Each first lug and the corresponding second lug are detachably connected by a first bolt fastener. Both the first lug and the second lug have threaded holes for the first bolt fastener to pass through.

3. An improved pipe connector according to claim 1, characterized in that, The first fixing plate is an arc shape that matches the shape of the first arc-shaped anti-detachment block. The outer side of the first fixing plate is provided with a plurality of first clamping bolts whose shaft core direction is located in the radial direction of the anti-detachment ring. The first clamping bolts are used to radially lock the first arc-shaped anti-detachment block. The outer periphery of the first arc-shaped anti-detachment block is provided with a first annular groove for accommodating the tail of the first clamping bolt.

4. An improved pipe connector according to claim 1, characterized in that, Two anti-detachment rings are provided at one end of the connector body, and the two anti-detachment rings are spaced apart along the axial direction of the port portion of the connector body.

5. An improved pipe connector according to claim 1, characterized in that, The second fixing plate is an arc shape that matches the shape of the second arc-shaped anti-detachment block. Several second clamping bolts with the core direction located in the radial direction of the anti-detachment ring are provided on the outer side of the second fixing plate. The second clamping bolts are used to radially lock the second arc-shaped anti-detachment block.

6. An improved pipe connector according to claim 5, characterized in that, The outer periphery of the second arc-shaped anti-detachment block is provided with a second annular groove for accommodating the tail of the second clamping bolt.

7. An improved pipe connector according to claim 1, characterized in that, Both the first arc-shaped anti-detachment block and the second arc-shaped anti-detachment block have anti-detachment teeth on their inner sides for clamping the pipe.

8. An improved pipe connector according to claim 1, characterized in that, Both the first fixing plate and the second fixing plate are fixed on a mounting flange, which is detachably mounted on the connector body, and the diameter of the mounting flange is adapted to the diameter of the connector body.

9. An improved pipe connector according to claim 1, characterized in that, The first fixing plate is fixed on the first arc-shaped flange block, and the second fixing plate is fixed on the second arc-shaped flange block. The first arc-shaped flange block and the second arc-shaped flange block form a complete flange. The flange is detachably mounted on the connector body, and the diameter of the flange is adapted to the diameter of the connector body.

10. An improved pipe connector according to claim 9, characterized in that, The first arc-shaped flange block has a first connecting part on both sides in the radial direction, and a third lug on the outer side of each of the two first connecting parts. The second arc-shaped flange block has a second connecting part on both sides in the radial direction that can be spliced ​​with the corresponding first connecting part, and a fourth lug on the outer side of each of the two second connecting parts. When the first arc-shaped flange block and the second arc-shaped flange block form the flange, the third lug and the fourth lug on the same side are attached vertically and are on the same vertical plane. A fifth lug is provided on the connector body at the position of the third lug on both sides.

Images