Splicing block type connecting port for pipes

Abstract

The utility model discloses a pipe piece type connecting interface, including spigot, pipe body, bellmouth, spigot connecting ring, bellmouth connecting ring and ferrule ring, spigot connecting ring, bellmouth connecting ring and ferrule ring all have circular ring structure, spigot is fixedly connected with one end of the pipe body coaxially, spigot connecting ring is fixedly sleeved outside the pipe body coaxially, spigot connecting ring, bellmouth connecting ring and ferrule ring share the same central axis, the ferrule connecting ring, bellmouth connecting ring and ferrule ring share the same central axis, and the ferrule connecting ring, bellmouth connecting ring and ferrule ring share the same central axis. One end of the socket connecting ring is in mortise and tenon connection with the socket, the other end of the socket connecting ring is in mortise and tenon connection with the ferrule ring, the spigot connecting ring is in mortise and tenon connection with the ferrule ring, the socket connecting ring comprises a plurality of socket connecting blocks which are sequentially spliced in the circumferential direction of the socket connecting ring, and the structures of the socket connecting blocks are not completely the same. The clamping sleeve ring comprises a plurality of clamping sleeve blocks which are sequentially spliced in the circumferential direction of the clamping sleeve ring, and the structures of the clamping sleeve blocks are not completely the same. The two adjacent pipes do not move or deflect relatively, needed parts are simple, installation is easy, the overall cost is low, and the connector strength is high.

Description

TECHNICAL FIELD

[0001] The utility model belongs to pipe technology field, specifically is a kind of pipe's block type connecting interface. BACKGROUND

[0002] When installing pipe network system such as water pipe in factory park, city underground pipe comprehensive corridor and other occasions, it is required that the connecting interfaces of adjacent two pipes form self-anchoring structure and cannot be separated, in addition, adjacent two pipes cannot relatively deflect.In order to improve the strength of connecting interface, some existing connecting interfaces are relatively complex.However, the connection of adjacent pipes is carried out and completed in construction site, and the technical level of on-site equipment and construction personnel is limited, so it is better to make the connecting interface strength of adjacent pipes high while connection is simple. SUMMARY

[0003] In view of the above problems existing in the prior art, the utility model aims at providing a block type connecting interface of pipe, adjacent two pipes are fixedly connected together through the connecting interface, adjacent two pipes will not relatively move and relatively deflect, it is suitable for overhead pipe, city underground pipe comprehensive corridor and other occasions, spigot connecting ring, socket connecting ring and sleeve ring contact and transmit force to each other, socket connecting ring and socket contact and transmit force to each other, it is mortise and tenon connecting structure, contact area is large, force is evenly distributed, spigot connecting ring is welded on pipe body, overall strength and reliability are high, socket connecting ring is composed of multiple socket connecting blocks, sleeve ring is composed of multiple sleeve blocks, the components required by the connecting interface are simple, installation is simple, basically no other equipment and auxiliary components are needed during installation, overall cost is lower, interface strength is high, the requirement for installation equipment and personnel technical level is lower, and it is suitable for installation in construction site.

[0004] In order to achieve the above-mentioned purpose, the technical scheme adopted by the utility model is:

[0005] A block type connecting interface of pipe, including spigot, pipe body, socket and spigot connecting ring, socket connecting ring and sleeve ring which are all circular ring structures, the spigot is coaxially fixedly connected at one end of the pipe body, the spigot connecting ring is coaxially fixedly sleeved outside the pipe body, the spigot connecting ring, socket connecting ring and sleeve ring share a common central axis, the socket connecting ring is mortise and tenon connected with the socket at one end in axial direction and with the sleeve ring at the other end, the spigot connecting ring and the sleeve ring are mortise and tenon connected, the spigot connecting ring, socket connecting ring, sleeve ring and socket form a self-anchoring structure, the socket connecting ring includes multiple socket connecting blocks which are sequentially spliced along the circumference of the socket connecting ring, the structures of the socket connecting blocks are not completely same, the sleeve ring includes multiple sleeve blocks which are sequentially spliced along the circumference of the sleeve ring, the structures of the sleeve blocks are not completely same.

[0006] As a further improvement of the above technical scheme:

[0007] The outer diameter of the socket is equal to the outer diameter of the pipe body or the outer diameter of the socket is greater than the outer diameter of the pipe body, and when the outer diameter of the socket is greater than the outer diameter of the pipe body, the socket connecting ring contacts the stepped surface formed by the socket protruding from the pipe body and parallel to the radial direction of the socket.

[0008] The socket connecting ring comprises a main body part and an opening part, and the main body part and the opening part are integrally connected along the circumference of the socket connecting ring. The cross section of the main body part is U-shaped, and the opening of the U-shaped part is directed away from the end of the socket connecting ring in the axial direction. The cross section of the opening part is L-shaped, and the cross section is a cross section taken by a plane passing through the central axis of the socket connecting ring.

[0009] The plurality of socket connecting blocks comprises a second socket connecting block. The cross section of the second socket connecting block is U-shaped, and the opening of the U-shaped part is directed parallel to the radial direction of the socket connecting ring and away from the central axis. The opening part and the second socket connecting block are aligned, one end of the second socket connecting block is connected to the socket tenon, and the other end is connected to the sleeve ring tenon. Each sleeve block enters its respective position from the alignment of the opening part and the second socket connecting block. The cross section of the second socket connecting block is a cross section taken by a plane passing through the central axis of the socket connecting ring.

[0010] The plurality of sleeve blocks comprises a second sleeve block. The cross section of the second sleeve block is U-shaped, and the opening of the U-shaped part is directed parallel to the radial direction of the sleeve ring and towards the central axis of the sleeve ring. One end of the opening part and one end of the second socket connecting block are inserted into the U-shaped opening of the second sleeve block.

[0011] The plurality of socket connecting blocks comprises a plurality of first socket connecting blocks. The cross section of the first socket connecting block comprises a socket block first part, a socket block second part, a socket block third part, and a socket block fourth part. The socket block first part, the socket block second part, and the socket block third part are connected in sequence to form a U-shaped part. The socket block fourth part is connected to one end of the socket block third part away from the socket block second part. One end of the socket block first part of the first socket connecting block is connected to the socket tenon, and one end of the socket block fourth part is connected to the sleeve ring tenon.

[0012] The sleeve block is an axisymmetric structure, and the part of the same sleeve block that cooperates with the socket connecting block is symmetrical to the part of the sleeve block that cooperates with the socket connecting ring.

[0013] The plurality of sleeve blocks include a plurality of first sleeve blocks, the cross section of the first sleeve block is an axisymmetric shape, the cross section is a cross section taken by a plane passing through the center axis of the socket sleeve ring, the cross section includes a first sleeve block part, a second sleeve block part, a third sleeve block part, a fourth sleeve block part and a fifth sleeve block part, the second sleeve block part, the third sleeve block part and the fourth sleeve block part are sequentially connected into a U shape, the first sleeve block part is connected to one end of the second sleeve block part away from the third sleeve block part, the fifth sleeve block part is connected to one end of the fourth sleeve block part away from the third sleeve block part, the first socket connecting block, the first sleeve block and the main body part are connected by a mortise and tenon joint.

[0014] The socket is provided with a notch, which is a socket block mounting port, and is used for the first socket connecting block and the second socket connecting block to pass through during the mounting process of the connecting interface.

[0015] The utility model discloses beneficial effects are: adjacent two pipes are fixedly connected together through the connecting interface, and adjacent two pipes will not move and deflect relatively, are applicable to overhead pipe, city underground pipeline comprehensive corridor and other occasions, the socket connecting ring, socket connecting ring and sleeve ring contact each other and transfer the acting force, and the socket connecting ring and the socket contact each other and transfer the acting force, and it is the mortise and tenon joint structure, the contact area is big, and the stress is even, the socket connecting ring is welded on the pipe, and the overall strength and reliability are high, the socket connecting ring is composed of a plurality of socket connecting blocks, the sleeve ring is composed of a plurality of sleeve blocks, the connecting interface needs the component simple, and installation is simple, and when installing, basically no other equipment and auxiliary components are needed, and the overall cost is lower, and the interface strength is high, and the installation equipment and personnel technical level requirement are lower, and are applicable to the installation of construction site. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the pipe structure schematic diagram of the utility model embodiment one.

[0017] Figure 2 It is the schematic diagram of the connecting interface of the utility model embodiment one.

[0018] Figure 3 It is the pipe socket end end surface structure schematic diagram of the utility model embodiment one.

[0019] Figure 4 It is Figure 3 H-H cross section schematic diagram.

[0020] Figure 5 It is Figure 1 A-A cross section schematic diagram.

[0021] Figure 6 It is Figure 5 C-C cross section schematic diagram.

[0022] Figure 7 It is Figure 5B-B cross-sectional view of the pipe.

[0023] Figure 8 is the first pipe socket connecting ring structure schematic diagram of the utility model embodiment one.

[0024] Figure 9 is Figure 8 E-E cross-sectional view of the pipe.

[0025] Figure 10 is Figure 8 D-D cross-sectional view of the pipe.

[0026] Figure 11 is the first pipe socket connecting ring structure schematic diagram of the utility model embodiment one.

[0027] Figure 12 is Figure 11 G-G cross-sectional view of the pipe.

[0028] Figure 13 is Figure 11 F-F cross-sectional view of the pipe.

[0029] Figure 14 is the first pipe socket connecting ring structure schematic diagram of the utility model embodiment one. Figure 1 .

[0030] Figure 15 is the first pipe socket connecting ring structure schematic diagram of the utility model embodiment one. Figure 2 .

[0031] Figure 16 is the first pipe socket connecting ring structure schematic diagram of the utility model embodiment one. Figure 1 .

[0032] Figure 17 is the first pipe socket connecting ring structure schematic diagram of the utility model embodiment one. Figure 2 .

[0033] Figure 18 is the first pipe socket connecting ring structure schematic diagram of the utility model embodiment one.

[0034] Figure 19 is the first pipe socket connecting ring structure schematic diagram of the utility model embodiment one.

[0035] Figure 20 is the pipe structure schematic diagram of the utility model embodiment two.

[0036] Figure 21 is the schematic diagram of the connecting interface of the utility model embodiment two.

[0037] Reference: 1, socket, 11, socket reinforcing ring, 2, socket, 21, socket ring installation groove, 22, socket ring installation groove, 23, blocking part, 24, sealing groove, 25, socket block installation port, 3, pipe body, 4, socket connecting ring, 41, main part, 411, main part first part, 412, main part second part, 413, main part third part, 42, opening part, 421, opening first part, 422, opening second part, 5, socket connecting ring, 51, first socket connecting block, 511, socket block first part, 512, socket block second part, 513, socket block third part, 514, socket block fourth part, 52, second socket connecting block, 521, socket block A part, 522, socket block B part, 523, socket block C part, 6, clamping sleeve ring, 61, first clamping sleeve block, 611, clamping sleeve block first part, 612, clamping sleeve block second part, 613, clamping sleeve block third part, 614, clamping sleeve block fourth part, 615, clamping sleeve block fifth part, 62, second clamping sleeve block, 621, clamping sleeve block A part, 622, clamping sleeve block B part, 623, clamping sleeve block C part, 7, sealing ring. DETAILED DESCRIPTION

[0038] The specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely intended to illustrate and explain the present application, and are not intended to limit the present application.

[0039] For ease of description, spatial relative terms such as "above", "upper", "top surface", "upper" and the like can be used herein to describe the spatial relationship of one device or feature to other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the drawings. For example, if the device in the drawing is inverted, the device described as "above" or "above" other devices or structures will be positioned "below" or "below" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly.

[0040] Embodiment one:

[0041] A pipe block type connecting interface, as shown in Figure 1 The pipe includes a socket 1, a pipe body 3 and a socket 2 connected coaxially in sequence, and the socket 1 and the pipe body 3 are both cylindrical structures.

[0042] In this embodiment, the inner diameter and the outer diameter of the socket 1 are equal to the inner diameter and the outer diameter of the pipe body 3 respectively, and the outer diameter of the socket 2 is greater than the outer diameter of the pipe body 3.

[0043] The socket connecting ring 4 is fixedly installed on the outer surface of the pipe body 3. The socket connecting ring 4 is annular in structure, and the socket connecting ring 4 is coaxially fixedly sleeved on the pipe body 3 close to one end of the socket 1.

[0044] The socket connecting ring 4 can be divided into two parts, which are a main body part 41 and an opening part 42. As shown in Figure 5 , the main body part 41 is an arc structure, and the opening part 42 is a poor arc structure. The main body part 41 and the opening part 42 are integrally connected, and the connecting surface of the main body part 41 and the opening part 42 has two places, and each connecting surface is on a plane passing through the center axis of the socket connecting ring 4.

[0045] The cross section of the main body part 41 is shown in Figure 6 , which is a plane passing through the center axis of the socket connecting ring 4. The cross section is U-shaped, the opening of the U-shaped structure is parallel to the center axis of the socket connecting ring 4, and the opening of the U-shaped structure is away from the socket 1.

[0046] The cross section of the main body part 41 includes a main body first part 411, a main body second part 412 and a main body third part 413, which are all long strip-shaped rectangles. The main body first part 411, the main body second part 412 and the main body third part 413 are connected in sequence to form a U-shaped structure. Specifically, the length direction of the main body first part 411 and the length direction of the main body third part 413 are both parallel to the center axis of the socket connecting ring 4, the length direction of the main body second part 412 is perpendicular to the center axis of the socket connecting ring 4, the width direction of the main body first part 411 and the width direction of the main body third part 413 are both perpendicular to the center axis of the socket connecting ring 4, and the width direction of the main body second part 412 is parallel to the center axis of the socket connecting ring 4. The length of the main body first part 411 is greater than the length of the main body third part 413. The main body first part 411 contacts the outer surface of the pipe body 3.

[0047] The cross section of the opening part 42 is shown in Figure 7 , which is a plane passing through the center axis of the socket connecting ring 4. The cross section includes an opening first part 421 and an opening second part 422, which are both long strip-shaped rectangles. The opening first part 421 and the opening second part 422 are connected to form an L-shaped structure. Specifically, the length direction of the opening first part 421 is parallel to the center axis of the socket connecting ring 4, and the length direction of the opening second part 422 is perpendicular to the center axis of the socket connecting ring 4. The width direction of the opening first part 421 is perpendicular to the center axis of the socket connecting ring 4, and the length direction of the opening second part 422 is parallel to the center axis of the socket connecting ring 4. The opening first part 421 contacts the outer surface of the pipe body 3.

[0048] The length and width of the first part 411 of the main body are equal to the length and width of the first part 421 of the opening, and the length and width of the second part 412 of the main body are equal to the length and width of the second part 422 of the opening.

[0049] As shown, the main body part 41 corresponds to a U-shaped groove formed by the corresponding structure of the first part 411 of the main body, the corresponding structure of the second part 412 of the main body, and the corresponding structure of the third part 413 of the main body. The opening part 42 lacks the corresponding structure of the third part 413 of the main body compared to the main body part 41, and the socket connecting ring 4 corresponds to a notch formed in the opening part 42.

[0050] The corresponding structure of the first part 411 of the main body is connected to the corresponding structure of the first part 421 of the opening, and the corresponding structure of the second part 412 of the main body is connected to the corresponding structure of the second part 422 of the opening.

[0051] The inner wall of the socket 2 is provided with an avoidance groove 21, a socket ring mounting groove 22, a blocking part 23, and a sealing groove 24 in sequence from the end face of the socket 2 towards the pipe body 3, as shown. Figure 1 The end face of the socket 2 refers to the end face of the end of the socket 2 away from the pipe body 3, or the end face of the open end of the socket 2. The avoidance groove 21, the socket ring mounting groove 22, and the sealing groove 24 correspond to recesses provided on the inner wall of the socket 2, i.e., formed by concave from the inner wall of the socket 2. Each recess is a recess along a circumferential circle of the inner wall of the socket 2, and the blocking part 23 corresponds to a part without concave, which is the original inner wall of the socket 2. Therefore, the inner diameter of the socket 2 at the avoidance groove 21, the inner diameter of the socket 2 at the socket ring mounting groove 22, and the inner diameter of the socket 2 at the sealing groove 24 are all greater than the inner diameter of the socket 2 at the blocking part 23. The inner diameter of the socket 2 at the socket ring mounting groove 22 is greater than the inner diameter of the socket 2 at the avoidance groove 21.

[0052] The socket 2 is also provided with a notch, which is a socket block mounting port 25, as shown. Figure 3 4 The socket block mounting port 25 is formed by removing material from the socket 2, specifically, a circular ring structure is removed from the circular ring structure of the socket 2 in the middle of the socket 2 from the end face of the socket 2 towards the pipe body 3, i.e., the socket block mounting port 25 is a sector ring.

[0053] The pipe material can be a socket pipe material or a straight pipe or other special-shaped pipe material.

[0054] In this embodiment, the pipe material is a socket pipe material.

[0055] When two adjacent pipe materials are connected, the socket 1 of one pipe material is inserted into the socket 2 of the other pipe material, and in combination with the cooperation of other auxiliary parts, the connection interface is formed.

[0056] ​The connecting interface, as shown in Figure 2 includes a spigot 1, a socket 2, a pipe body 3, a spigot connecting ring 4, a socket connecting ring 5, a sleeve ring 6, and a sealing ring 7. The spigot 1 is inserted into the socket 2. The spigot 1 and the socket 2 of the connecting interface are the spigot 1 and the socket 2 of two adjacent pipes, respectively. The spigot 1 and the pipe body 3 belong to the spigot 1 and the pipe body 3 of the same pipe.

[0057] The outer diameter of the spigot 1 of the connecting interface is smaller than the inner diameter of the socket 2.

[0058] The socket connecting ring 5 and the sleeve ring 6 are coaxially movably sleeved outside the pipe body 3. The spigot connecting ring 4, the socket connecting ring 5, and the sleeve ring 6 are spliced and clamped through a mortise and tenon connection mode, so that the connecting interface forms a self-anchoring interface that cannot be separated.

[0059] The socket connecting ring 5 has a ring structure, and the inner diameter of the ring structure is equal to the outer diameter of the pipe body 3. As shown in Figure 8~10 , the socket connecting ring 5 includes a plurality of first socket connecting blocks 51 and a second socket connecting block 52 arranged in sequence along the circumference of the socket connecting ring 5. Each first socket connecting block 51 and the second socket connecting block 52 are sequentially spliced to form a ring structure.

[0060] The cross section of the first socket connecting block 51 is shown in Figure 9 . The cross section is a cross section taken by a plane passing through the central axis of the socket connecting ring 5. The cross section includes a socket block first part 511, a socket block second part 512, a socket block third part 513, and a socket block fourth part 514, all of which are long rectangular shapes. The socket block first part 511, the socket block second part 512, and the socket block third part 513 are sequentially connected in a U shape. The socket block fourth part 514 is connected to one end of the socket block third part 513 away from the socket block second part 512. Specifically, the length direction of the socket block second part 512 and the length direction of the socket block fourth part 514 are both parallel to the central axis of the socket connecting ring 5. The length direction of the socket block first part 511 and the length direction of the socket block third part 513 are both perpendicular to the central axis of the socket connecting ring 5. The length of the socket block second part 512 is greater than the length of the socket block fourth part 514. The length of the socket block third part 513 is greater than the length of the socket block first part 511. The socket block second part 512 contacts the outer surface of the pipe body 3. Obviously, the width direction of the socket block second part 512 and the width direction of the socket block fourth part 514 are both perpendicular to the central axis of the socket connecting ring 5. The width direction of the socket block first part 511 and the width direction of the socket block third part 513 are both parallel to the central axis of the socket connecting ring 5.

[0061] The cross section of the second socket connecting block 52 is shown in Figure 10As shown, the cross section is a cross section taken by a plane passing through the central axis of the socket connecting ring 5, the cross section includes socket block A part 521, socket block B part 522 and socket block C part 523 which are all long rectangular, and the socket block A part 521, the socket block B part 522 and the socket block C part 523 are connected in turn into a U shape. Specifically, the length direction of the socket block B part 522 is parallel to the central axis of the socket connecting ring 5, and the length direction of the socket block A part 521 and the length direction of the socket block C part 523 are both perpendicular to the central axis of the socket connecting ring 5. The length of the socket block C part 523 is greater than the length of the socket block A part 521. The socket block B part 522 contacts the outer surface of the pipe body 3. Obviously, the width direction of the socket block B part 522 is perpendicular to the central axis of the socket connecting ring 5, and the width direction of the socket block A part 521 and the width direction of the socket block C part 523 are both parallel to the central axis of the socket connecting ring 5.

[0062] The length and width of the socket block A part 521 are equal to the length and width of the socket block first part 511 respectively, the length and width of the socket block B part 522 are equal to the length and width of the socket block second part 512 respectively, and the length and width of the socket block C part 523 are equal to the length and width of the socket block third part 513 respectively. In other words, compared with the first socket connecting block 51, the second socket connecting block 52 is less the structure corresponding to the socket block fourth part 514.

[0063] From the above, the first socket connecting block 51 corresponds to a concave space, which is surrounded by the structure corresponding to the socket block first part 511, the structure corresponding to the socket block second part 512, the structure corresponding to the socket block third part 513 and the structure corresponding to the socket block fourth part 514. The second socket connecting block 52 is less the structure corresponding to the socket block fourth part 514 compared with the first socket connecting block 51. The structure corresponding to the socket block first part 511 and the structure corresponding to the socket block A part 521 are connected, the structure corresponding to the socket block second part 512 and the structure corresponding to the socket block B part 522 are connected, and the structure corresponding to the socket block third part 513 and the structure corresponding to the socket block C part 523 are connected.

[0064] It should be noted that the arc length occupied by each first socket connecting block 51 in the annular where the socket connecting ring 5 is located is not necessarily equal, such as Figure 8 As shown, the above arc length can be flexibly set, as long as each first socket connecting block 51 and the second socket connecting block 52 are spliced into the socket connecting ring 5. Further, the splicing surface of the adjacent two first socket connecting blocks 51 or the splicing surface of the first socket connecting block 51 and the second socket connecting block 52 does not necessarily pass through the central axis of the socket connecting ring 5.

[0065] The sleeve ring 6 is a ring structure, and the outer diameter of the ring structure is equal to or less than the outer diameter at the end face of the socket 2. As shown in Figure 11~13As shown, the sleeve ring 6 comprises a plurality of first sleeve blocks 61 and a second sleeve block 62, each first sleeve block 61 and the second sleeve block 62 are sequentially spliced into a ring structure along the circumference of the sleeve ring 6.

[0066] The cross section of the first sleeve block 61 is shown in Figure 12 The cross section is a cross section taken by a plane passing through the central axis of the sleeve ring 6, which is an axisymmetric shape, comprising a sleeve block first part 611, a sleeve block second part 612, a sleeve block third part 613, a sleeve block fourth part 614 and a sleeve block fifth part 615, all of which are long strip-shaped rectangles. The sleeve block second part 612, the sleeve block third part 613 and the sleeve block fourth part 614 are sequentially connected into a U shape, the sleeve block first part 611 is connected to one end of the sleeve block second part 612 away from the sleeve block third part 613, and the sleeve block fifth part 615 is connected to one end of the sleeve block fourth part 614 away from the sleeve block third part 613.

[0067] The sleeve block second part 612 and the sleeve block fourth part 614 are symmetrical with respect to the symmetry axis of the cross section of the first sleeve block 61, and the sleeve block first part 611 and the sleeve block fifth part 615 are symmetrical with respect to the symmetry axis of the cross section of the first sleeve block 61. Specifically, the length direction of the sleeve block first part 611, the length direction of the sleeve block third part 613 and the length direction of the sleeve block fifth part 615 are all parallel to the central axis of the sleeve ring 6, and the length direction of the sleeve block second part 612 and the length direction of the sleeve block fourth part 614 are all perpendicular to the central axis of the sleeve ring 6. The length of the sleeve block second part 612 is equal to the length of the sleeve block fourth part 614, and the length of the sleeve block first part 611 is equal to the length of the sleeve block fifth part 615. The length of the sleeve block third part 613 is greater than the sum of the lengths of the sleeve block first part 611 and the sleeve block fifth part 615. Obviously, the width direction of the sleeve block first part 611, the width direction of the sleeve block third part 613 and the width direction of the sleeve block fifth part 615 are all perpendicular to the central axis of the sleeve ring 6, and the width direction of the sleeve block second part 612 and the width direction of the sleeve block fourth part 614 are all parallel to the central axis of the sleeve ring 6.

[0068] The cross section of the second sleeve block 62 is shown in Figure 13 The cross section is a cross section taken by a plane passing through the central axis of the sleeve ring 6, which is an axisymmetric shape, comprising a sleeve block A part 621, a sleeve block B part 622 and a sleeve block C part 623, all of which are long strip-shaped rectangles, and the sleeve block A part 621, the sleeve block B part 622 and the sleeve block C part 623 are sequentially connected into a U shape. The sleeve block A part 621 and the sleeve block C part 623 are symmetrical with respect to the symmetry axis of the cross section of the second sleeve block 62.

[0069] The length direction of the sleeve block B part 622 is parallel to the central axis of the sleeve ring 6, and the length direction of the sleeve block A part 621 and the length direction of the sleeve block C part 623 are both perpendicular to the central axis of the sleeve ring 6. The width direction of the sleeve block B part 622 is perpendicular to the central axis of the sleeve ring 6, and the width direction of the sleeve block A part 621 and the width direction of the sleeve block C part 623 are both parallel to the central axis of the sleeve ring 6. The length and width of the sleeve block A part 621 are equal to the length and width of the sleeve block C part 623 respectively.

[0070] The length and width of the sleeve block third part 613 are equal to the length and width of the sleeve block B part 622 respectively. The length of the sleeve block second part 612 is equal to the length of the sleeve block A part 621, and the width of the sleeve block A part 621 is greater than the width of the sleeve block second part 612, that is, the distance between the sleeve block A part 621 and the sleeve block C part 623 is less than the distance between the sleeve block second part 612 and the sleeve block fourth part 614.

[0071] From the above, the first sleeve block 61 corresponds to an inner recess space surrounded by the corresponding structure of the sleeve block first part 611, the corresponding structure of the sleeve block second part 612, the corresponding structure of the sleeve block third part 613, the corresponding structure of the sleeve block fourth part 614 and the corresponding structure of the sleeve block fifth part 615.

[0072] The arc length of each first sleeve block 61 in the annular occupied by the sleeve ring 6 is not necessarily equal, as shown in Figure 11 The arc length can be flexibly set as long as the first sleeve block 61 and the second sleeve block 62 are spliced into the sleeve ring 6. Further, the splicing surface of the adjacent two first sleeve blocks 61 or the splicing surface of the first sleeve block 61 and the second sleeve block 62 does not necessarily pass through the central axis of the sleeve ring 6.

[0073] Based on the above structure, the spigot connection ring 4, the socket connection ring 5 and the sleeve ring 6 are coaxially arranged, one end of the socket connection ring 5 is inserted into the socket 2 and the other end is inserted into the groove of the sleeve ring 6, and the spigot connection ring 4 is inserted into the groove of the sleeve ring 6, so that the sleeve ring 6 locks the socket connection ring 5 and the spigot connection ring 4 together and cannot be separated, realizing the self-anchoring of the socket 2 and the spigot 1.

[0074] The other end of the socket connecting ring 5 in the axial direction is inserted into the recess of the spigot connecting ring 4. Specifically, the corresponding structure of the main body portion 41, the corresponding structure of the first socket connecting block 51, and the corresponding structure of the first sleeve block 61 are connected by mortise and tenon, and the cross section of the structure formed by the connection is as shown in FIG. 6. The cross section is a cross section taken by a plane passing through the center axis. The fourth socket block portion 514 is located between the third sleeve block portion 613 and the first sleeve block portion 611, the third main body portion 413 is located between the third sleeve block portion 613 and the fifth sleeve block portion 615, and the second main body portion 412 and the third socket block portion 513 are both located between the first sleeve block portion 611 and the fifth sleeve block portion 615. The first sleeve block portion 611 is located between the fourth socket block portion 514 and the second socket block portion 512, and the fifth sleeve block portion 615 is located between the third main body portion 413 and the first main body portion 411. In other words, the sum of the length of the fourth socket block portion 514 and the length of the third main body portion 413 is not greater than the distance between the fourth sleeve block portion 614 and the second sleeve block portion 612, and the sum of the width of the third socket block portion 513 and the width of the second main body portion 412 is not greater than the distance between the first sleeve block portion 611 and the fifth sleeve block portion 615. The width of the first sleeve block portion 611 is not greater than the distance between the fourth socket block portion 514 and the second socket block portion 512, and the width of the fifth sleeve block portion 615 is not greater than the distance between the third main body portion 413 and the first main body portion 411.

[0075] The other end of the socket connecting ring 5 in the axial direction is inserted into the recess of the spigot connecting ring 4. Specifically, the corresponding structure of the main body portion 41, the corresponding structure of the first socket connecting block 51, and the corresponding structure of the first sleeve block 61 are connected by mortise and tenon, and the cross section of the structure formed by the connection is as shown in FIG. 6. The cross section is a cross section taken by a plane passing through the center axis. The fourth socket block portion 514 is located between the third sleeve block portion 613 and the first sleeve block portion 611, the third main body portion 413 is located between the third sleeve block portion 613 and the fifth sleeve block portion 615, and the second main body portion 412 and the third socket block portion 513 are both located between the first sleeve block portion 611 and the fifth sleeve block portion 615. The first sleeve block portion 611 is located between the fourth socket block portion 514 and the second socket block portion 512, and the fifth sleeve block portion 615 is located between the third main body portion 413 and the first main body portion 411. In other words, the sum of the length of the fourth socket block portion 514 and the length of the third main body portion 413 is not greater than the distance between the fourth sleeve block portion 614 and the second sleeve block portion 612, and the sum of the width of the third socket block portion 513 and the width of the second main body portion 412 is not greater than the distance between the first sleeve block portion 611 and the fifth sleeve block portion 615. The width of the first sleeve block portion 611 is not greater than the distance between the fourth socket block portion 514 and the second socket block portion 512, and the width of the fifth sleeve block portion 615 is not greater than the distance between the third main body portion 413 and the first main body portion 411.

[0076] The other end of the socket connecting ring 5 in the axial direction is inserted into the recess of the spigot connecting ring 4. Specifically, the corresponding structure of the main body portion 41, the corresponding structure of the first socket connecting block 51, and the corresponding structure of the first sleeve block 61 are connected by mortise and tenon, and the cross section of the structure formed by the connection is as shown in FIG. 6. The cross section is a cross section taken by a plane passing through the center axis. The fourth socket block portion 514 is located between the third sleeve block portion 613 and the first sleeve block portion 611, the third main body portion 413 is located between the third sleeve block portion 613 and the fifth sleeve block portion 615, and the second main body portion 412 and the third socket block portion 513 are both located between the first sleeve block portion 611 and the fifth sleeve block portion 615. The first sleeve block portion 611 is located between the fourth socket block portion 514 and the second socket block portion 512, and the fifth sleeve block portion 615 is located between the third main body portion 413 and the first main body portion 411. In other words, the sum of the length of the fourth socket block portion 514 and the length of the third main body portion 413 is not greater than the distance between the fourth sleeve block portion 614 and the second sleeve block portion 612, and the sum of the width of the third socket block portion 513 and the width of the second main body portion 412 is not greater than the distance between the first sleeve block portion 611 and the fifth sleeve block portion 615. The width of the first sleeve block portion 611 is not greater than the distance between the fourth socket block portion 514 and the second socket block portion 512, and the width of the fifth sleeve block portion 615 is not greater than the distance between the third main body portion 413 and the first main body portion 411. Figure 19 The other end of the socket connecting ring 5 in the axial direction is inserted into the recess of the spigot connecting ring 4. Specifically, the corresponding structure of the main body portion 41, the corresponding structure of the first socket connecting block 51, and the corresponding structure of the first sleeve block 61 are connected by mortise and tenon, and the cross section of the structure formed by the connection is as shown in FIG. 6. The cross section is a cross section taken by a plane passing through the center axis. The fourth socket block portion 514 is located between the third sleeve block portion 613 and the first sleeve block portion 611, the third main body portion 413 is located between the third sleeve block portion 613 and the fifth sleeve block portion 615, and the second main body portion 412 and the third socket block portion 513 are both located between the first sleeve block portion 611 and the fifth sleeve block portion 615. The first sleeve block portion 611 is located between the fourth socket block portion 514 and the second socket block portion 512, and the fifth sleeve block portion 615 is located between the third main body portion 413 and the first main body portion 411. In other words, the sum of the length of the fourth socket block portion 514 and the length of the third main body portion 413 is not greater than the distance between the fourth sleeve block portion 614 and the second sleeve block portion 612, and the sum of the width of the third socket block portion 513 and the width of the second main body portion 412 is not greater than the distance between the first sleeve block portion 611 and the fifth sleeve block portion 615. The width of the first sleeve block portion 611 is not greater than the distance between the fourth socket block portion 514 and the second socket block portion 512, and the width of the fifth sleeve block portion 615 is not greater than the distance between the third main body portion 413 and the first main body portion 411.​

[0077] The clamping ring 6 may or may not contact the end face of the socket 2 .

[0078] The sealing groove 24 is used to install the sealing ring 7 to achieve sealing after the two adjacent pipes are connected. The sealing ring 7 is pressed tightly between the socket 1 and the socket 2.

[0079] Based on the above structure, the working principle and method of connecting adjacent pipes are as follows:

[0080] The first step is to Figure 2 A sealing ring 7 is installed in the sealing groove 24 of the pipe where the middle socket 2 is located.

[0081] Step 2: Place the second tube ( Figure 2 The spigot 1 (of the pipe in which the middle spigot 1 is located) is inserted into the bell 2, with the bell block mounting opening 25 aligned with the opening 42. This means that the bell block mounting opening 25, the opening 42, and the central axis are coplanar. Furthermore, the distance between the end faces of the spigot connecting ring 4 and the bell 2 at the bell block mounting opening 25 is greater than the axial length of the first bell connecting block 51, facilitating subsequent installation of the bell connecting ring 5.

[0082] The third step is to install the socket connection ring 5. First install the first socket connection block 51 and finally install the second socket connection block 52. When installing the first socket connection block 51, install the first socket connection block 51 in the order of the distance from the socket block installation opening 25 in the circumferential direction from far to near. Figure 8 In the embodiment, first install the first bell connection block 51 shown in a, then install the first bell connection block 51 shown in b, and finally install the second bell connection block 52 shown in c. Specifically, first move one end of the first bell connection block 51 radially closer to the central axis from the bell block installation opening 25 until the first portion 511 of the bell block is substantially flush with the bell ring installation groove 22, as shown in FIG. Figure 14 Then, the first socket connection block 51 is moved axially until the first portion 511 of the socket block enters the socket ring installation groove 22, as shown. Figure 15 As shown. Finally, the first socket connection block 51 is moved circumferentially until it reaches the target position. Finally, the second socket connection block 52 is radially inserted into the socket block mounting opening 25, close to the central axis, until the socket block A portion 521 is substantially flush with the socket ring mounting groove 22. Then, the second socket connection block 52 is moved axially until the socket block A portion 521 enters the socket ring mounting groove 22.

[0083] After installation is completed, the second socket connection block 52 and the opening portion 42 are aligned, which is equivalent to the second socket connection block 52 and the opening portion 42 being located on the same straight line parallel to the central axis.

[0084] Fourth step, move the pipe with the socket 1 axially, so that the socket connecting ring 4 contacts the socket connecting ring 5, wherein the opening part 42 contacts the second socket connecting block 52, and the main body part 41 contacts each first socket connecting block 51.

[0085] Fifth step, install the sleeve ring 6. First install each first sleeve block 61, and then install the second sleeve block 62. When installing the first sleeve block 61, install the first sleeve block 61 in the order from far to near in the circumferential direction from the socket block mounting hole 25, as shown in Figure 11 , first install the first sleeve block 61 shown by a, then install the first sleeve block 61 shown by b, and finally install the second sleeve block 62 shown by c. Specifically, as shown in Figure 16 , first align the opening of the first sleeve block 61 with the opening second part 422 and the socket block C part 523, and then move the first sleeve block 61 radially close to the center axis. Then, insert the sleeve block first part 611 and the sleeve block fifth part 615 between the opening second part 422 and the socket block C part 523, as shown in Figure 17 . Then, move the first sleeve block 61 circumferentially, so that the first sleeve block 61 and the first socket connecting block 51, the main body part 41 are matched, as shown in Figure 18 . When installing the second sleeve block 62, align the opening of the second sleeve block 62 with the opening second part 422 and the socket block C part 523, and then move the second sleeve block 62 radially close to the center axis, so that the sleeve block A part 621 contacts the socket block B part 522, the sleeve block C part 623 contacts the opening first part 421, and the opening second part 422 and the socket block C part 523 are inserted between the sleeve block A part 621 and the sleeve block C part 623, as shown in Figure 19 .

[0086] Among them, the second sleeve block 62 is fixedly connected with the second socket connecting block 52 and the opening part 42 respectively by existing methods such as adhesion.

[0087] Example two:

[0088] The difference between this embodiment and example one is the socket 1 in this embodiment. Specifically, the outer diameter of the socket 1 is greater than the outer diameter of the pipe body 3 and less than the inner diameter of the socket 2. As shown in Figure 20 , 21 , the socket 1 protrudes from the outer surface of the pipe body 3 to form a stepped structure. The end face of the socket 1 away from the pipe body 3 is the end face of the socket 1, and the end face or side face of the socket 1 connected with the pipe body 3 is a stepped face, that is, the stepped face is formed by the socket 1 protruding from the surface of the pipe body 3, and the plane where the stepped face is located is parallel to the radial direction of the socket 1.

[0089] The socket 1 is sleeved with a socket reinforcing ring 11 for reinforcing the strength of the socket 1. The socket reinforcing ring 11 can be integrally arranged with the socket 1, which is equivalent to that the socket 1 and the socket reinforcing ring 11 are two layers of metal materials with same or different materials, or the socket reinforcing ring 11 can be separately arranged. When the socket reinforcing ring 11 is separately arranged, the socket reinforcing ring 11 is annular, generally made of stainless steel, and has certain ductility and rigidity. The initial outer diameter of the socket reinforcing ring 11 is smaller than the inner diameter of the socket 1. When the socket reinforcing ring 11 is installed, the socket reinforcing ring 11 is placed into the socket 1, and then the socket reinforcing ring 11 is expanded by using an expanding device, so that the diameter of the socket reinforcing ring 11 is expanded until the socket reinforcing ring 11 is tightly pressed against the inner wall of the socket 1. The reason why the socket reinforcing ring 11 can be tightly pressed against the inner wall of the socket 1 is that, when the diameter is expanded, the inner wall of the socket 1 is subjected to the radial pressure of the expanding device. After the pressure is removed (the expanding is finished), the socket 1 and the socket reinforcing ring 11 will have certain elastic recovery. Since the wall thickness of the socket 1 is large and the socket 1 is connected with the pipe body, the elastic recovery of the socket 1 is larger than that of the socket reinforcing ring 11. After the elastic recovery, the socket reinforcing ring 11 is tightly pressed against the inner wall of the socket 1.

[0090] In the embodiment, the socket connecting ring 4 is coaxially fixedly sleeved on the outer surface of the pipe body 3 and contacts the stepped surface of the socket 1 protruding from the pipe body 3. Specifically, the main body second part 412 of the main body part 41 and the opening second part 422 of the opening part 42 contact the stepped surface of the socket 1 protruding from the pipe body 3. That is, the socket connecting ring 4 is sleeved outside the socket 1. The outer diameter of the socket connecting ring 4 is equal to the outer diameter of the socket connecting ring 5.

[0091] Based on the above structure, when the socket 2 exerts a pulling force on the socket connecting ring 4 through the socket connecting ring 5 and the clamping sleeve ring 6, the socket connecting ring 4 can transmit the force to the pipe body 3 and the socket 1 in contact with the socket connecting ring 4, so that the strength of the socket connecting ring 4 and the entire connecting interface is greatly improved, and the socket connecting ring 4 is more suitable for large-diameter pipes.

[0092] Finally, it is necessary to point out that the above embodiments are only used to further illustrate the technical scheme of the utility model, and cannot be understood as limiting the protection scope of the utility model. Some non-essential improvements and adjustments made by the person skilled in the art based on the above content of the utility model all belong to the protection scope of the utility model.

Claims

1. A splicing connection interface of a pipe, characterized by, The utility model relates to a self-anchoring structure of pipe socket, which comprises a socket (1), a pipe body (3), a socket spout (2), a socket connecting ring (4), a socket spout connecting ring (5) and a sleeve ring (6), wherein the socket (1) is coaxially fixedly connected to one end of the pipe body (3), the socket connecting ring (4) is coaxially fixedly sleeved outside the pipe body (3), the socket connecting ring (4), the socket spout connecting ring (5) and the sleeve ring (6) share a common axis, one end of the socket spout connecting ring (5) is tenon-and-mortise connected to the socket spout (2), the other end is tenon-and-mortise connected to the sleeve ring (6), the socket connecting ring (4) and the sleeve ring (6) are tenon-and-mortise connected, the socket connecting ring (4), the socket spout connecting ring (5), the sleeve ring (6) and the socket spout (2) are connected into a self-anchoring structure, the socket spout connecting ring (5) comprises a plurality of socket spout connecting blocks which are sequentially spliced along the circumference of the socket spout connecting ring (5), the structures of the socket spout connecting blocks are not completely the same, and the sleeve ring (6) comprises a plurality of sleeve blocks which are sequentially spliced along the circumference of the sleeve ring (6), the structures of the sleeve blocks are not completely the same.

2. The connection interface of claim 1, wherein: The outer diameter of the socket (1) is equal to the outer diameter of the pipe body (3) or greater than the outer diameter of the pipe body (3), and when the outer diameter of the socket (1) is greater than the outer diameter of the pipe body (3), the socket connecting ring (4) contacts the socket (1) and protrudes from the pipe body (3) to form a step surface parallel to the radial direction of the socket (1).

3. The connection interface according to claim 1 or 2, characterized in that: The socket connecting ring (4) comprises a main body portion (41) and an opening portion (42), the main body portion (41) and the opening portion (42) are integrally connected along the circumference of the socket connecting ring (4), the cross section of the main body portion (41) is U-shaped, the opening of the U-shaped portion faces away from one end of the socket (1) along the axial direction of the socket connecting ring (4), the cross section of the opening portion (42) is L-shaped, and the cross section is a cross section taken by a plane passing through the central axis of the socket connecting ring (4).

4. The connection interface of claim 3, wherein: One of the plurality of socket spout connecting blocks is a second socket spout connecting block (52), the cross section of the second socket spout connecting block (52) is U-shaped, the opening of the U-shaped portion faces parallel to the radial direction of the socket spout connecting ring (5) and faces away from the central axis, the opening portion (42) is aligned with the second socket spout connecting block (52), one end of the second socket spout connecting block (52) is tenon-and-mortise connected to the socket spout (2), the other end is tenon-and-mortise connected to the sleeve ring (6), each sleeve block enters its position from the alignment position of the opening portion (42) and the second socket spout connecting block (52), and the cross section of the second socket spout connecting block (52) is a cross section taken by a plane passing through the central axis of the socket spout connecting ring (5).

5. The connection interface of claim 4, wherein: One of the plurality of sleeve blocks is a second sleeve block (62), the cross section of the second sleeve block (62) is U-shaped, the opening of the U-shaped portion faces parallel to the radial direction of the sleeve ring (6) and faces the central axis of the sleeve ring (6), and one end of the opening portion (42) and one end of the second socket spout connecting block (52) are inserted into the U-shaped opening of the second sleeve block (62).

6. The connection interface of claim 4, wherein: The multiple socket connecting blocks include multiple first socket connecting blocks (51). The cross section of the first socket connecting block (51) includes a socket block first part (511), a socket block second part (512), a socket block third part (513), and a socket block fourth part (514). The socket block first part (511), the socket block second part (512), and the socket block third part (513) are connected in sequence to form a U shape. The socket block fourth part (514) is connected to one end of the socket block third part (513) away from the socket block second part (512). One end of the socket block first part (511) of the first socket connecting block (51) is connected to the socket (2) in a mortise and tenon joint, and one end of the socket block fourth part (514) is connected to the sleeve ring (6) in a mortise and tenon joint.

7. The connection interface according to any one of claims 4 to 6, characterized in that: The sleeve block is an axisymmetric structure. The part of the same sleeve block matched with the socket connecting block is symmetrical to the part of the sleeve block matched with the spigot connecting ring (4).

8. The connection interface of claim 7, wherein: The multiple sleeve blocks include multiple first sleeve blocks (61). The cross section of the first sleeve block (61) is an axisymmetric shape, which is a cross section taken by a plane passing through the center axis of the socket sleeve ring (6). The cross section includes a sleeve block first part (611), a sleeve block second part (612), a sleeve block third part (613), a sleeve block fourth part (614), and a sleeve block fifth part (615). The sleeve block second part (612), the sleeve block third part (613), and the sleeve block fourth part (614) are connected in sequence to form a U shape. The sleeve block first part (611) is connected to one end of the sleeve block second part (612) away from the sleeve block third part (613). The sleeve block fifth part (615) is connected to one end of the sleeve block fourth part (614) away from the sleeve block third part (613). The first socket connecting block (51), the first sleeve block (61), and the main body part (41) are connected in a mortise and tenon joint.

9. The connection interface of claim 7, wherein: The socket (2) is provided with a notch, which is a socket block mounting port (25) for the first socket connecting block (51) and the second socket connecting block (52) to pass through during the installation of the connecting interface.

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