Pipe clamping connection device

Abstract

This utility model discloses a pipe clamping and connecting device, including a clamping mechanism and a multi-way connector. The clamping mechanism includes a clamping part and a connecting part. The clamping part has several sets of clamping plates arranged circumferentially for clamping pipe fittings. The connecting part is located in the clamping part and includes an annular seat, a first spring, a limiting platform, and a guide post. The annular seat has a groove for the first limiting platform, and the lower end of the guide post is connected to the bottom of the groove. The first spring is sleeved on the guide post, and the bottom of the limiting platform has a guide post slot hole. The upper end of the spring is fixed to the bottom of the limiting platform, and the limiting platform can rise and fall along the guide post. The inner wall of the connector pipe of the multi-way connector has a groove for the second limiting platform. The annular seat is inserted into the connector pipe, and one side surface of the limiting platform is inclined. When inserted, it is compressed and springs up to the second limiting platform groove for limiting. Through the above configuration, this utility model can ensure the clamping and connection of pipes, replacing the traditional welding connection method.

Description

Technical Field

[0001] This utility model relates to the field of aluminum processing technology, specifically to a pipe clamping and connecting device. Background Technology

[0002] Currently, the connection between aluminum square tubes and round tubes mainly relies on two methods: welding and connector connection. Welding requires first sawing the tubes and then welding them together. This process is cumbersome, requires a high level of skill from the operators, and is difficult to execute. Connector connection, on the other hand, requires pre-drilling holes in both the aluminum square and round tubes, then inserting each type of tube into the corresponding connector interface and tightening with bolts. This method requires a certain level of dimensional accuracy in the tubes to ensure a match between the holes and the connector interfaces. Utility Model Content

[0003] In view of this, the present invention discloses a pipe clamping and connecting device, the specific solution of which is as follows:

[0004] A pipe clamping and connecting device, characterized in that it includes a clamping mechanism and a multi-port connector;

[0005] The clamping mechanism includes a clamping part and a connecting part. The clamping part includes several sets of clamping plates arranged in a circumferential array, and the clamping plates clamp the pipe fitting.

[0006] The connecting part is disposed on the clamping part and includes an annular seat, a first spring, a limiting platform, and a guide post; the annular seat is provided with a groove for the first limiting platform, the guide post is vertically disposed and its lower end is connected to the bottom of the groove for the first limiting platform, the first spring is sleeved on the guide post, the lower bottom of the limiting platform is provided with a slot hole for the guide post, and the upper end of the first spring is fixedly connected to the lower bottom of the limiting platform, so that the limiting platform can move up and down along the guide post;

[0007] The connector of the multi-port connector is a connector tube, and the annular seat of the connecting part is inserted into the connector tube of the multi-port connector. The inner wall of the connector tube is provided with a second limiting platform groove for the insertion of the limiting platform. The side surface of the limiting platform near the connector tube is inclined so that when the annular seat is inserted into the connector tube, the limiting platform is compressed into the first limiting platform groove. When the limiting platform moves to the position of the second limiting platform groove in the connector tube, the limiting platform pops up and is located in the second limiting platform groove.

[0008] As a supplement to the technical solution of this utility model, a protruding slider is also provided on the inner wall of the connector tube;

[0009] The outer wall of the annular seat is also provided with a rotary guide groove, which includes an insertion part, a first rotating part, a fixing part, a second rotating part, and an outlet part;

[0010] The socket is a groove extending from one end of the annular seat near the connector tube to the other end of the annular seat, so that when the annular seat is inserted into the connector tube, the protruding slider inside the connector tube can be smoothly inserted into the socket.

[0011] The first rotating part is a groove opened along the circumference of the annular seat. One end of the first rotating part is connected to the insertion part, and the other end of the first rotating part is provided with a fixing part.

[0012] The fixed part is connected to a second rotating part that is opened circumferentially along the annular seat at a position away from the end of the connector tube. One end of the second rotating part is connected to the fixed part, and the other end extends in a direction away from the first rotating part.

[0013] The outlet is a groove that extends from one end of the annular seat near the connector tube toward the other end of the annular seat and communicates with the second rotating part.

[0014] When the protruding slider is located in the fixed part of the rotary guide groove, the limiting platform pops up into the groove of the second limiting platform. When the protruding slider is located in the non-fixed part of the rotary guide groove, the limiting platform is compressed into the groove of the first limiting platform.

[0015] As a supplement to the technical solution of this utility model, the clamping part also includes a clamping housing, a telescopic mechanism, and an anti-slip contact block;

[0016] The clamping plate is disposed inside the clamping housing. The clamping plate has an arc-shaped structure, and the anti-slip contact block is disposed on the inner arc surface of the clamping plate. The side surface of the clamping plate is provided with a clamping plate protrusion. The inner side wall of the clamping housing is provided with a guide groove. The number of guide grooves is the same as that of the clamping plate in the vertical direction, and the clamping plate protrusion is located in the guide groove.

[0017] The telescopic mechanism includes a sliding guide rod, a rotating rod, a rotating sleeve, and a telescopic base;

[0018] The telescopic base is a cylindrical structure with an internal accommodating space. An annular protrusion is provided on the outer wall of one end of the telescopic base. The annular protrusion of the telescopic base is located inside the clamping housing and is fixedly connected to the inner wall of the clamping housing. The rotating sleeve is sleeved on the outer surface of the telescopic base. The sliding guide rod is located in the internal space of the telescopic base. The number of the sliding guide rod is the same as that of the clamping plate. The sliding guide rod is a rod-shaped structure. One end of the sliding guide rod is connected to the clamping plate, and the other end is suspended. The sliding guide rod is provided with a groove opened along its length.

[0019] The telescopic base has a through hole on its side wall. One end of the rotating rod passes through the through hole of the telescopic base and is connected to the inner side wall of the rotating sleeve. The other end of the rotating rod is bent and inserted into the groove of the guide rod. As the rotating sleeve rotates, the end of the rotating rod slides in the groove of the sliding guide rod, so that the sliding guide rod moves together with the clamping plate toward or away from the axis of the clamping housing under the drive of the rotating rod.

[0020] The annular seat of the connecting part is fixedly connected to the end of the telescopic base away from the clamping housing.

[0021] As a supplement to the technical solution of this utility model, the clamping part further includes a locking mechanism, which includes a locking sleeve. The locking sleeve is sleeved on the telescopic base and located on the side of the rotating sleeve away from the clamping housing. The locking sleeve is used to cooperate with the clamping housing to clamp the rotating sleeve and restrict the rotation of the rotating sleeve.

[0022] As a supplement to the technical solution of this utility model, the locking mechanism further includes a locking sleeve. The end of the rotating sleeve near the locking sleeve is provided with a protrusion, and the end of the locking sleeve near the rotating sleeve is provided with a groove. The protrusion of the rotating sleeve is located in the groove of the locking sleeve, so that the rotating sleeve and the locking sleeve can rotate together.

[0023] The outer surface of the locking sleeve is provided with external threads, and the end of the locking sleeve away from the rotating sleeve is provided with an elastic protrusion, the outer surface of the elastic protrusion being a conical surface;

[0024] The locking sleeve is an annular structure with an internal thread on its inner surface. The locking sleeve is screwed to the external thread of the locking sleeve through the internal thread. The end of the locking sleeve has an annular protrusion extending in the direction of its axis. The inner surface of the annular protrusion forms an inner conical surface. As the locking sleeve is continuously tightened on the locking sleeve, the outer surface of the elastic protrusion contacts the inner conical surface of the annular protrusion, so that the inner conical surface of the annular protrusion applies a pressing force towards the telescopic base to the elastic protrusion. The elastic protrusion undergoes elastic deformation and comes into close contact with the telescopic base.

[0025] As a supplement to the technical solution of this utility model, the outer surface of the rotating sleeve is provided with strip-shaped protrusions, the length direction of the strip-shaped protrusions is parallel to the axial direction of the rotating sleeve, and the strip-shaped protrusions are uniformly arrayed along the axial direction of the rotating sleeve.

[0026] As a supplement to the technical solution of this utility model, the telescopic base includes a tubular part and a guide part. The tubular part is a hollow tubular structure, and the guide part is a disc-shaped structure. The guide part is disposed at one end of the tubular part, and the annular protrusion is disposed on the tubular part. The guide part is located inside the clamping housing.

[0027] The guide section is provided with strip-shaped through holes, the number of which is the same as the number of connecting rods. The length direction of the strip-shaped through holes faces the axis of the guide section, and the strip-shaped through holes are evenly arrayed along the axial direction of the guide section. The telescopic mechanism also includes a connecting rod, one end of which is connected to the clamping plate, and the other end passes through the strip-shaped through hole of the guide section and is connected to the sliding guide rod. The sliding guide rod is located inside the tubular part of the telescopic base.

[0028] As a supplement to the technical solution of this utility model, the clamping mechanism further includes a guide rod, which is disposed in the guide groove of the clamping housing, and the end of the guide rod is fixedly connected to the bottom wall of the guide groove; the clamping plate protrusion on the clamping plate is provided with a guide through hole for the guide rod to pass through.

[0029] As a supplement to the technical solution of this utility model, the clamping mechanism further includes a second spring, which is sleeved on the guide rod, with one end of the second spring abutting against the bottom wall of the guide groove and the other end of the second spring being fixedly connected to the inner side wall of the guide through hole on the protrusion of the clamping plate.

[0030] As a supplement to the technical solution of this utility model, the telescopic mechanism also includes a rotating rod base. One end of the rotating rod base is connected to the inner wall of the rotating sleeve, and the other end of the rotating rod base passes through the slot on the telescopic base and is located inside the telescopic base. The length direction of the rotating rod is parallel to the axial direction of the clamping housing. One end of the rotating rod is connected to the rotating rod base, and the other end passes through the sliding groove of the sliding guide rod.

[0031] The part where the rotating rod passes through the groove on the sliding guide rod and bends is the guide rod bending part, and a plug is screwed to the free end of the guide rod bending part.

[0032] Beneficial Effects: The pipe clamping and connecting device disclosed in this utility model clamps the pipe end through the clamping part. Through the connection structure design between the multi-way connector and the connecting part, multiple clamping mechanisms can be connected to the multi-way connector according to actual usage. In another aspect of this utility model, the design of the rotary guide groove and the raised slider ensures the stability of the connection structure while achieving quick installation / removal. In yet another aspect of this utility model, the structural design of the clamping part enables clamping and fixing of pipes of different diameters and types. Attached Figure Description

[0033] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0034] Figure 2 This is a schematic diagram of the clamping mechanism and multi-port connector assembly structure of this utility model.

[0035] Figure 3 This is a schematic diagram of the multi-port connector structure of this utility model.

[0036] Figure 4 This is a schematic diagram of the connection structure between the telescopic base and the annular seat of this utility model.

[0037] Figure 5 This is a schematic diagram of the annular seat structure of this utility model.

[0038] Figure 6 This is a schematic diagram of the limiting platform of this utility model.

[0039] Figure 7 This is a front view structural diagram of the clamping mechanism of this utility model.

[0040] Figure 8 This is a rear view schematic diagram of the clamping mechanism of this utility model.

[0041] Figure 9 This is a schematic diagram of the clamping housing structure of this utility model.

[0042] Figure 10 This is a schematic diagram of the clamping mechanism of this utility model.

[0043] Figure 11 This is a schematic diagram of the assembly structure of the clamping mechanism and the telescopic mechanism of this utility model.

[0044] Figure 12 This is a schematic diagram of the assembly structure of the telescopic mechanism of this utility model.

[0045] Figure 13 This is a schematic diagram of the telescopic base structure of this utility model.

[0046] Figure 14 This is a schematic diagram of the telescopic base structure of this utility model.

[0047] Figure 15 This is a schematic diagram of the rotating sleeve structure of this utility model.

[0048] Figure 16 This is a schematic diagram of the locking mechanism of this utility model.

[0049] Figure 17 This is a cross-sectional view of the locking sleeve and tightening sleeve of this utility model.

[0050] In the diagram: 1. Clamping plate, 2. Annular seat, 3. First spring, 4. Limiting platform, 5. Guide post, 6. First limiting platform groove, 7. Second limiting platform groove, 8. Multi-port connector, 9. Connector tube, 10. Protruding slider, 11. Rotary guide groove, 12. Insertion port, 13. First rotating part, 14. Fixing part, 15. Second rotating part, 16. Exit part, 17. Clamping housing, 18. Guide groove, 19. Clamping plate protrusion, 20. 21. Sliding guide rod, 22. Rotating rod, 23. Rotating sleeve, 24. Telescopic base, 25. Locking sleeve, 26. Elastic protrusion, 27. Annular protrusion, 28. Anti-slip contact block, 29. Tubular part, 30. Guide part, 31. Connecting rod, 32. Guide rod, 33. Second spring, 34. Strip-shaped through hole, 35. Rotating rod base, 36. Plug, 37. Clamping mechanism, 38. Guide rod bending part, 39. Annular protrusion. Detailed Implementation

[0051] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0052] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0053] like Figures 1 to 17 As shown, the pipe clamping connection device includes a clamping mechanism 37 and a multi-port connector 8.

[0054] The clamping mechanism 37 is used to clamp and fix the end of the pipe fitting. It includes a clamping part and a connecting part. The clamping part includes a clamping plate 1, which is provided in several groups. The multiple groups of clamping plates 1 are arranged in a circumferential array to clamp the pipe fitting. The connecting part is provided on the clamping part.

[0055] The connecting part includes an annular seat 2, a first spring 3, a limiting platform 4, and a guide post 5.

[0056] The annular seat 2 is provided with a first limiting platform groove 6, and a guide post 5 is vertically arranged at the bottom of the first limiting platform groove 6. A first spring 3 is sleeved on the guide post 5. The lower bottom of the limiting platform 4 is provided with a slot hole for the guide post 5. The diameter of the slot hole at the lower bottom of the limiting platform 4 is the same as the diameter of the guide post 5. The upper end of the first spring 3 is fixedly connected to the lower bottom of the limiting platform 4, so that the limiting platform 4 can move up and down along the guide post 5, for example, retracting into the first limiting platform groove 6, or extending out from the position of the first limiting platform groove 6.

[0057] The multi-way connector 8 can be a tee connector, a four-way connector, or an N-way connector, which can be selected according to actual usage requirements. The connector position of the multi-way connector 8 is the connector tube 9, and the annular seat 2 of the connecting part is inserted into the connector tube 9 of the multi-way connector 8. The inner side wall of the connector tube 9 is provided with a second limiting platform groove 7 for the insertion of the limiting platform 4. The side surface of the limiting platform 4 near the connector tube 9 is inclined, so that when the annular seat 2 is inserted into the connector tube 9, the inclined surface of the limiting platform 4 can push the limiting platform 4 to retract into the first limiting platform groove 6 by the connector tube 9. When the limiting platform 4 moves to the position of the second limiting platform groove 7 in the connector tube 9, the limiting platform 4 pops up into the second limiting platform groove 7, completing the connection between the connecting part and the connecting structure. The structure of the multi-way connector 8 can be selected according to actual connection requirements. For example, when three sets of pipe fittings are to be connected, a tee connector is used; when four sets of pipe fittings are to be connected, a four-way connector is used. Each connector tube 9 is connected to a clamping mechanism 37.

[0058] The above settings enable the connection between different pipe fittings without the need for welding or drilling and bolt connection.

[0059] In the above technical solution, the connecting part of the clamping mechanism 37 can be pushed towards the connector tube 9 to retract the limiting platform 4 into the first limiting platform groove 6. Then, the clamping mechanism 37 can be rotated to pull the connecting part out of the connector tube 9 of the multi-way connector 8, thus completing the disassembly and separation of the clamping mechanism 37 and the multi-way connector 8. However, in the above technical solution, since the guide post 5 is the integral force-bearing carrier in the above structure, if the annular seat 2 is subjected to tensile stress in a direction away from the connector tube 9 during use, the guide post 5 is prone to breakage.

[0060] As a preferred embodiment of this utility model, a raised slider 10 is also provided on the inner wall of the connector tube 9.

[0061] The outer side wall of the annular seat 2 is also provided with a rotary guide groove 11, which includes an insertion part 12, a first rotating part 13, a fixing part 14, a second rotating part 15, and an outlet part 16. The insertion part 12, the fixing part 14, and the outlet part 16 are all elongated grooves whose length direction is parallel to the axial direction of the annular seat 2.

[0062] like Figure 4 As shown, the insertion part 12 is a groove extending from one end of the annular seat 2 near the connector tube 9 towards the other end of the annular seat 2. It is used to ensure that when the annular seat 2 is inserted into the connector tube 9, the protruding slider 10 inside the connector tube 9 can be smoothly inserted into the insertion part 12. In this state, the limiting platform 4 is in a contracted state that is retracted into the first limiting platform groove 6.

[0063] The first rotating part 13 is a groove formed circumferentially along the annular seat 2, and one end of the first rotating part 13 communicates with the socket part 12. The position where the first rotating part 13 communicates with the socket part 12 is located at the end of the socket part 12 away from the connector tube 9. When the protruding slider 10 contacts the rear end of the socket part 12, simply twisting the annular seat 2 will allow the protruding slider 10 to slide into the first rotating part 13.

[0064] The other end of the first rotating part 13 is provided with a fixing part 14. When the protruding slider 10 slides into the fixing part 14, the limiting platform 4 can pop out and be inserted into the second limiting platform groove 7 to complete the connection between the annular seat 2 and the connector tube 9.

[0065] The fixing part 14 is connected to a second rotating part 15 that is opened circumferentially along the annular seat 2 at a position away from the connector tube 9. One end of the second rotating part 15 is connected to the fixing part 14, and the other end extends in a direction away from the first rotating part 13.

[0066] The outlet portion 16 is a groove that extends from one end of the annular seat 2 near the connector tube 9 toward the other end of the annular seat 2 and communicates with the second rotating portion 15.

[0067] When it is necessary to separate the annular seat 2 from the connector tube 9, push the annular seat 2 toward the connector tube 9 so that the limiting platform 4 retracts into the first limiting platform groove 6. Then rotate the annular seat 2 so that the protruding slider 10 slides into the second rotating part 15, then slides through the second rotating part 15 into the outlet part 16, and finally slides out along the outlet part 16. When the protruding slider 10 is located in the second rotating part 15 and the outlet part 16, the limiting platform 4 is always in a state of being compressed by the inner wall of the connector tube 9.

[0068] With the above configuration, when the raised slider 10 is located in the fixed part 14 of the rotating guide groove 11, when the annular seat 2 is subjected to a pulling force in the direction away from the connector tube 9, the main body subjected to the force is the raised slider 10, thus avoiding the technical problem of the guide post 5 of the connecting part breaking or deforming under the force.

[0069] As a preferred embodiment of this utility model, the clamping part further includes a clamping housing 17, a clamping mechanism, a telescopic mechanism, and a locking mechanism.

[0070] The clamping housing 17 is a hollow cylindrical structure, and the clamping mechanism is disposed on the clamping housing 17, which includes a clamping plate 1 and an anti-slip contact block 28.

[0071] The clamping plate 1 has an arc-shaped structure, and at least two sets of clamping plates 1 are provided. Each clamping plate 1 can be closed to form a cylindrical structure, which can accommodate the clamping of square or round tubes. The side surface of the clamping plate 1 is provided with a clamping plate protrusion 19. The inner wall of the clamping housing 17 is provided with guide grooves 18. The number of guide grooves 18 is the same as the vertical number of the clamping plates 1, and the guide grooves 18 are evenly arrayed circumferentially along the clamping housing 17. The length direction of the guide grooves 18 extends towards the axis of the clamping housing 17. The clamping plate protrusion 19 is located within the guide groove 18. The spacing between the clamping plates 1 can be adjusted by adjusting the insertion depth to accommodate the clamping of square and round tubes of different sizes and specifications.

[0072] The telescopic mechanism includes a sliding guide rod 20, a rotating rod 21, a rotating sleeve 22, and a telescopic base 23;

[0073] The telescopic base 23 is a cylindrical structure with an internal accommodating space. An annular protrusion 39 is provided on the outer side wall of one end of the telescopic base 23. The annular protrusion 39 of the telescopic base 23 is inserted into the interior of the clamping housing 17, and the annular protrusion 39 is fixedly connected to the inner side wall of the clamping housing 17 by welding.

[0074] The rotating sleeve 22 is an annular structure and is located on the outer surface of the telescopic base 23, and can rotate freely relative to the telescopic base 23.

[0075] The number of sliding guide rods 20 is the same as the number of clamping plates 1, and they are located in the internal space of the telescopic base 23. Each set of clamping plates 1 is connected to a set of sliding guide rods 20. The sliding guide rods 20 are rod-shaped structures, with one end connected to the end of the clamping plate 1, specifically connected to one end along the axial length of the clamping plate 1, and the other end suspended. The sliding guide rods 20 are provided with grooves opened along their length.

[0076] The telescopic base 23 has a through hole on its side wall. One end of the rotating rod 21 passes through the through hole of the telescopic base 23 and connects to the inner side wall of the rotating sleeve 22. The other end of the rotating rod 21 passes through the groove of the sliding guide rod 20. By rotating the rotating sleeve 22, the end of the rotating rod 21 with a protrusion slides in the groove of the sliding guide rod 20, so that the sliding guide rod 20 and the clamping plate 1 move together toward / away from the axis of the clamping housing 17. In use, the end of the pipe is inserted between the clamping plates 1, and the clamping plates 1 clamp the pipe by rotating the sleeve 22.

[0077] The annular seat 2 of the connecting part is fixedly connected to the end of the telescopic base 23 away from the clamping housing 17.

[0078] Preferably, to improve processing efficiency, the annular seat 2 and the telescopic base 23 are integrally formed.

[0079] The locking mechanism includes a locking sleeve 24, which is sleeved on the telescopic base 23. The locking sleeve 24 can clamp the rotating sleeve 22 together with the end of the clamping housing 17, thus restricting the rotation of the rotating sleeve 22.

[0080] The above settings enable clamping of pipe fittings with different diameters and cross-sectional shapes. The operation is simple, and the inner arc plate increases the contact area between the clamped pipe fitting and the inner arc plate, thus avoiding the technical problem of deformation caused by stress concentration.

[0081] The length direction of the sliding guide rod 20 cannot be parallel to the radial direction of the clamping housing 17, and it cannot coincide with the movement trajectory of the rotating rod 21.

[0082] like Figure 5 , Figure 6 As shown, in this utility model, the length directions of two adjacent sets of sliding guide rods 20 are perpendicular to each other, and the length direction of one set of sliding guide rods 20 is parallel to the direction of one of the diameters of the clamping housing 17.

[0083] As a preferred embodiment of this invention, the locking mechanism further includes a locking sleeve 25. The rotating sleeve 22 has a protrusion at one end near the locking sleeve 24, and the locking sleeve 24 has a groove at one end near the rotating sleeve 22. The protrusion of the rotating sleeve 22 is located within the groove of the locking sleeve 24, allowing the rotating sleeve 22 and the locking sleeve 24 to rotate together. The outer surface of the locking sleeve 24 has an external thread, and the end of the locking sleeve 24 away from the rotating sleeve 22 has an elastic protrusion 26. The outer diameter of the elastic protrusion 26 decreases along the axial direction of the locking sleeve 24, giving the outer surface of the elastic protrusion 26 a certain taper, forming an outer conical surface.

[0084] The locking sleeve 25 has an annular structure. The inner surface of the locking sleeve 25 is provided with an internal thread. The locking sleeve 25 is screwed onto the locking sleeve 24. The end of the locking sleeve 25 is provided with an annular protrusion 27 extending towards its axis. The inner diameter of the annular protrusion 27 gradually decreases along the axial direction of the locking sleeve 25, so that the inner surface of the annular protrusion 27 has a certain taper, forming an inner conical surface.

[0085] Preferably, the outer conical surface of the elastic protrusion 26 on the locking sleeve 24 has the same taper as the inner conical surface of the annular protrusion 27 on the locking sleeve 25. The outer conical surface abuts against the inner conical surface, and the same taper ensures that the inner conical surface of the annular protrusion 27 is in complete contact with the outer conical surface of the elastic protrusion 26. When the inner conical surface of the annular protrusion 27 contacts the outer conical surface of the elastic protrusion 26, as the locking sleeve 25 is further tightened on the locking sleeve 24, the inner conical surface of the annular protrusion 27 applies a pressing force towards the axial direction of the telescopic base 23 to the outer conical surface of the elastic protrusion 26. This causes the inner surface of the elastic protrusion 26 to be in close contact with the telescopic base 23, generating friction and preventing the locking sleeve 24 from moving on the telescopic base 23. This fixes the locking sleeve 24 on the telescopic base 23, and together with the clamping housing 17, clamps the rotating sleeve 22.

[0086] Preferably, the elastic protrusion 26 is made of rubber. The use of rubber improves weather resistance while maintaining friction with the telescopic base 23.

[0087] Preferably, both the locking sleeve 24 and the elastic protrusion 26 are made of rubber and are integrally formed.

[0088] Preferably, the elastic protrusions 26 on the locking sleeve 24 are provided in at least two sets. The elastic protrusions 26 are evenly arrayed along the circumference of the locking sleeve 24, and adjacent sets of elastic protrusions 26 are spaced apart to prevent poor elastic deformation effect when the elastic protrusions 26 are annular in structure.

[0089] With the above settings, the rotating sleeve 22 is fixed by tightening the locking sleeve 25. The specific fixing process is as follows: the rotating sleeve 22 rotates, causing the clamping plate 1 of the clamping mechanism to move towards the pipe fitting to clamp the pipe fitting. When the clamping plate 1 and the pipe fitting are in close contact, the rotating sleeve 22 cannot continue to rotate. At this time, the locking sleeve 25 is rotated, causing the locking sleeve 25 to move towards the rotating sleeve, so that the annular protrusion 27 of the rotating sleeve abuts against the elastic protrusion 26 on the locking sleeve 24. As the locking sleeve 25 rotates further, the annular protrusion 27 of the rotating sleeve applies pressure to the elastic protrusion 26 on the locking sleeve 24, so that the elastic protrusion 26 on the locking sleeve 24 is in close contact with the telescopic base 23, fixing the locking sleeve 24 on the telescopic base 23. The annular protrusion 27 on the telescopic base 23 is used to clamp and fix the rotating sleeve 22, preventing the rotating sleeve 22 from rotating further.

[0090] As a supplement to the above technical solution, the outer surface of the rotating sleeve 22 is provided with strip-shaped protrusions. The length direction of the strip-shaped protrusions is parallel to the axial direction of the rotating sleeve 22, and the strip-shaped protrusions are evenly arrayed along the axial direction of the rotating sleeve 22. The strip-shaped protrusions can provide friction for the operator to grip and rotate the rotating sleeve 22.

[0091] As a preferred embodiment of this invention, the clamping mechanism further includes an anti-slip contact block 28, which is disposed on the inner arc surface of the clamping plate 1 and is used to contact the square / round tube, further fixing the square / round tube while providing an anti-slip function. Simultaneously, when used to fix the square tube, it can further increase the contact area with the square tube.

[0092] As a preferred embodiment of this utility model, the telescopic mechanism further includes a connecting rod 31, and one end of the sliding guide rod 20 is connected to the end of the clamping plate 1 through the connecting rod 31.

[0093] The telescopic base 23 includes a tubular portion 29 and a guide portion 30. The tubular portion 29 is a hollow tubular structure, and the guide portion 30 is a disc-shaped structure. The guide portion 30 is disposed at one end of the tubular portion 29 near the clamping housing 17, and the outer diameter of the guide portion 30 is smaller than the outer diameter of the tubular portion 29. The guide portion 30 is located inside the clamping housing 17, and the annular protrusion 39 is disposed on the tubular portion 29.

[0094] The guide portion 30 is provided with strip-shaped through holes 34, the number of which is the same as the number of clamping plates 1. The length direction of the strip-shaped through holes 34 faces the axis of the guide portion 30, and the groups of strip-shaped through holes 34 are evenly arrayed along the axial direction of the guide portion 30. One end of the connecting rod 31 is connected to the clamping plate 1, and the other end passes through the strip-shaped through holes 34 of the guide portion 30 and is connected to the sliding guide rod 20. The sliding guide rod 20 is located inside the tubular portion 29 of the telescopic base 23. When the rotating sleeve 22 rotates, the strip-shaped through holes 34 on the guide portion 30 of the telescopic base 23 can provide guidance for the movement direction of the clamping plate 1.

[0095] Furthermore, the length direction of the connecting rod 31 is parallel to the axial direction of the clamping plate 1, and the sliding guide rod 20 is arranged perpendicularly to the connecting rod 31.

[0096] As a preferred embodiment of this utility model, the clamping mechanism further includes a guide rod 32, which is disposed within the guide groove 18 of the clamping housing 17, and the end of the guide rod 32 is fixedly connected to the bottom wall of the guide groove 18. The clamping plate protrusion 19 on the clamping plate 1 is provided with a guide through hole for the guide rod 32 to pass through, thereby providing guidance for the movement direction of the clamping plate 1.

[0097] As a supplement to the above technical solution, the clamping mechanism further includes a second spring 33. The second spring 33 is sleeved on the guide rod 32, with one end of the second spring 33 abutting against the bottom wall of the guide groove 18, and the other end of the second spring 33 fixedly connected to the inner side wall of the guide through hole on the protrusion 19 of the clamping plate. The second spring 33 enables the clamping plate 1 to reset.

[0098] As a preferred embodiment of this utility model, the telescopic mechanism further includes a rotating rod base 35. One end of the rotating rod base 35 is connected to the inner wall of the rotating sleeve 22, and the other end of the rotating rod base 35 passes through a slot on the telescopic base 23 and is located inside the telescopic base 23. The length direction of the rotating rod 21 is parallel to the axial direction of the clamping housing 17. One end of the rotating rod 21 is connected to the rotating rod base 35, and the other end passes through the sliding groove of the sliding guide rod 20. The length of the rotating rod base 35 along the axial direction of the telescopic base 23 is less than the length of the slot on the telescopic base 23.

[0099] As a supplement to the above technical solution, a plug 36 is provided at one end of the rotating rod 21 that passes through the sliding groove of the sliding guide rod 20. The plug 36 is screwed to the end of the rotating rod 21. The width of the plug 36 is greater than the width of the sliding groove. The plug 36 can prevent the end of the rotating rod 21 from coming out of the sliding groove of the sliding guide rod 20.

[0100] The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be included within the protection scope of the present invention.

Claims

1. A pipe clamping and connecting device, characterized in that, Includes clamping mechanism (37) and multi-port connector (8); The clamping mechanism (37) includes a clamping part and a connecting part. The clamping part includes several sets of clamping plates (1) arranged in a circumferential array. The clamping plates (1) clamp the pipe fitting. The connecting part is provided on the clamping part, which includes an annular seat (2), a first spring (3), a limiting platform (4), and a guide post (5); the annular seat (2) is provided with a first limiting platform groove (6), the guide post (5) is vertically arranged and its lower end is connected to the bottom of the first limiting platform groove (6), the first spring (3) is sleeved on the guide post (5), the lower bottom of the limiting platform (4) is provided with a slot hole for the guide post (5), and the upper end of the first spring (3) is fixedly connected to the lower bottom of the limiting platform (4), so that the limiting platform (4) can move up and down along the guide post (5); The connector of the multi-port connector (8) is a connector tube (9), and the annular seat (2) of the connecting part is inserted into the connector tube (9) of the multi-port connector (8). The inner wall of the connector tube (9) is provided with a second limiting platform groove (7) for the insertion of the limiting platform (4). The limiting platform (4) is inclined on the side surface near the connector tube (9), so that during the process of inserting the annular seat (2) into the connector tube (9), the limiting platform (4) is compressed into the first limiting platform groove (6). When the limiting platform (4) moves to the position of the second limiting platform groove (7) in the connector tube (9), the limiting platform (4) pops up and is located in the second limiting platform groove (7).

2. The pipe clamping and connecting device according to claim 1, characterized in that, The inner wall of the connector tube (9) is also provided with a protruding slider (10). The outer side wall of the annular seat (2) is also provided with a rotating guide groove (11), which includes an insertion part (12), a first rotating part (13), a fixing part (14), a second rotating part (15), and an outlet part (16). The socket (12) is a groove extending from one end of the annular seat (2) near the connector tube (9) to the other end of the annular seat (2), so that when the annular seat (2) is inserted into the connector tube (9), the protruding slider (10) inside the connector tube (9) can be smoothly inserted into the socket (12). The first rotating part (13) is a groove opened around the annular seat (2). One end of the first rotating part (13) is connected to the insertion part (12), and the other end of the first rotating part (13) is provided with a fixing part (14). The fixed part (14) is connected to a second rotating part (15) that is opened circumferentially along the annular seat (2) at a position away from the joint tube (9). One end of the second rotating part (15) is connected to the fixed part (14), and the other end extends in a direction away from the first rotating part (13). The outlet (16) is a groove that extends from one end of the annular seat (2) near the connector tube (9) toward the other end of the annular seat (2) and communicates with the second rotating part (15); When the protruding slider (10) is located in the fixed part (14) of the rotary guide groove (11), the limiting platform (4) bounces up into the second limiting platform groove (7). When the protruding slider (10) is located in the non-fixed part (14) of the rotary guide groove (11), the limiting platform (4) is compressed into the first limiting platform groove (6).

3. The pipe clamping and connecting device according to claim 1, characterized in that, The clamping part also includes a clamping housing (17), a telescopic mechanism, and an anti-slip contact block (28). The clamping plate (1) is disposed inside the clamping housing (17). The clamping plate (1) has an arc-shaped structure, and the anti-slip contact block (28) is disposed on the inner arc surface of the clamping plate (1). The side surface of the clamping plate (1) is provided with a clamping plate protrusion (19). The inner side wall of the clamping housing (17) is provided with a guide groove (18). The number of guide grooves (18) is the same as that of the clamping plate (1) in the vertical direction. The clamping plate protrusion (19) is located in the guide groove (18). The telescopic mechanism includes a sliding guide rod (20), a rotating rod (21), a rotating sleeve (22), and a telescopic base (23). The telescopic base (23) is a cylindrical structure with an internal accommodating space. An annular protrusion (39) is provided on the outer side wall of one end of the telescopic base (23). The annular protrusion (39) of the telescopic base (23) is located inside the clamping housing (17) and is fixedly connected to the inner side wall of the clamping housing (17). The rotating sleeve (22) is sleeved on the outer surface of the telescopic base (23). The sliding guide rod (20) is located in the internal space of the telescopic base (23). The number of the sliding guide rod (20) is the same as that of the clamping plate (1). The sliding guide rod (20) is a rod-shaped structure. One end of the sliding guide rod (20) is connected to the clamping plate (1), and the other end is suspended. The sliding guide rod (20) is provided with a groove along its length. The telescopic base (23) has a through hole on its side wall. One end of the rotating rod (21) passes through the through hole of the telescopic base (23) and is connected to the inner side wall of the rotating sleeve (22). The other end of the rotating rod (21) is bent and inserted into the groove of the sliding guide rod (20). As the rotating sleeve (22) rotates, the end of the rotating rod (21) slides in the groove of the sliding guide rod (20), so that the sliding guide rod (20) moves together with the clamping plate (1) toward or away from the axis of the clamping housing (17) under the drive of the rotating rod (21). The annular seat (2) of the connecting part is fixedly connected to the end of the telescopic base (23) away from the clamping housing (17).

4. The pipe clamping and connecting device according to claim 3, characterized in that, The clamping part also includes a locking mechanism, which includes a locking sleeve (24). The locking sleeve (24) is sleeved on the telescopic base (23) and located on the side of the rotating sleeve (22) away from the clamping housing (17). The locking sleeve (24) is used to cooperate with the clamping housing (17) to clamp the rotating sleeve (22) and restrict the rotation of the rotating sleeve (22).

5. The pipe clamping and connecting device according to claim 4, characterized in that, The locking mechanism also includes a locking sleeve (25). The rotating sleeve (22) has a protrusion at one end near the locking sleeve (24), and the locking sleeve (24) has a groove at one end near the rotating sleeve (22). The protrusion of the rotating sleeve (22) is located in the groove of the locking sleeve (24), so that the rotating sleeve (22) and the locking sleeve (24) can rotate together. The outer surface of the locking sleeve (24) is provided with external threads, and the end of the locking sleeve (24) away from the rotating sleeve (22) is provided with an elastic protrusion (26), and the outer surface of the elastic protrusion (26) is a conical surface; The locking sleeve (25) is an annular structure with an internal thread on its inner surface. The locking sleeve (25) is screwed to the external thread of the locking sleeve (24) through the internal thread. The end of the locking sleeve (25) is provided with an annular protrusion (27) extending in the direction of its axis. The inner surface of the annular protrusion (27) forms an inner conical surface. As the locking sleeve (25) is continuously tightened on the locking sleeve (24), the outer surface of the elastic protrusion (26) contacts the inner conical surface of the annular protrusion (27), so that the inner conical surface of the annular protrusion (27) applies a pressing force towards the telescopic base (23) to the elastic protrusion (26). The elastic protrusion (26) undergoes elastic deformation and comes into close contact with the telescopic base (23).

6. The pipe clamping and connecting device according to claim 3, characterized in that, The outer surface of the rotating sleeve (22) is provided with strip-shaped protrusions. The length direction of the strip-shaped protrusions is parallel to the axial direction of the rotating sleeve (22), and the strip-shaped protrusions are uniformly arrayed along the axial direction of the rotating sleeve (22).

7. The pipe clamping and connecting device according to claim 3, characterized in that, The telescopic base (23) includes a tubular part (29) and a guide part (30). The tubular part (29) is a hollow tubular structure, and the guide part (30) is a disc-shaped structure. The guide part (30) is located at one end of the tubular part (29), and the annular protrusion (39) is located on the tubular part (29). The guide part (30) is located inside the clamping housing (17). The guide part (30) is provided with strip-shaped through holes (34). The number of strip-shaped through holes (34) is the same as the number of connecting rods (31). The length direction of the strip-shaped through holes (34) is towards the axis of the guide part (30). The strip-shaped through holes (34) are evenly arrayed along the axial direction of the guide part (30). The telescopic mechanism also includes a connecting rod (31). One end of the connecting rod (31) is connected to the clamping plate (1), and the other end passes through the strip-shaped through hole (34) of the guide part (30) and is connected to the sliding guide rod (20). The sliding guide rod (20) is located in the tubular part (29) of the telescopic base (23).

8. The pipe clamping and connecting device according to claim 3, characterized in that, The clamping mechanism (37) further includes a guide rod (32), which is disposed in the guide groove (18) of the clamping housing (17), and the end of the guide rod (32) is fixedly connected to the bottom wall of the guide groove (18); the clamping plate protrusion (19) on the clamping plate (1) is provided with a guide through hole for the guide rod (32) to pass through.

9. The pipe clamping and connecting device according to claim 8, characterized in that, The clamping mechanism (37) further includes a second spring (33), which is sleeved on the guide rod (32). One end of the second spring (33) abuts against the bottom wall of the guide groove (18), and the other end of the second spring (33) is fixedly connected to the inner side wall of the guide through hole on the protrusion (19) of the clamping plate.

10. The pipe clamping and connecting device according to claim 3, characterized in that, The telescopic mechanism also includes a rotating rod base (35), one end of which is connected to the inner wall of the rotating sleeve (22), and the other end of which passes through the slot on the telescopic base (23) and is located inside the telescopic base (23); the length direction of the rotating rod (21) is parallel to the axial direction of the clamping housing (17), one end of which is connected to the rotating rod base (35), and the other end passes through the sliding groove of the sliding guide rod (20); The part of the rotating rod (21) that passes through the groove on the sliding guide rod (20) and is bent is the guide rod bend (38), and the free end of the guide rod bend (38) is screwed with a plug (36).

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