Adjustable limiting type pipe wrench

Abstract

The invention relates to the technical field of pipe tongs, in particular to an adjustable limiting type pipe tongs. Comprising a pipe wrench body, a first clamping part, a second clamping part, a connecting supporting mechanism and a clamping driving mechanism, a rotatable rotating frame is arranged on the first clamping part, a first receding groove is formed in the clamping end of the pipe wrench body, a second receding groove is formed in the rotating frame, and a first pipe wall clamping jaw and a second pipe wall clamping jaw are installed on the rotating frame in a sliding mode; the second clamping part is provided with a third pipe wall clamping jaw, the connecting and supporting mechanism comprises a mounting frame, a supporting frame, a hinge column and an in-place abutting support, the supporting frame is arranged on the mounting frame and connected with the hinge column, the in-place abutting support is arranged on the supporting frame in a sleeving mode, the in-place abutting support is in threaded connection with the supporting frame, and the in-place abutting support is connected with the pipe wrench body in an abutting mode. According to the pipe wrench, the screwing-in distance of a pipe fitting can be accurately controlled, it is ensured that the pipe fitting is installed in place, the supporting frame in the connecting and supporting mechanism can deflect and fold, automatic pipe rotating operation can be achieved, and the working efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of pipe clamps, and in particular to an adjustable limit-type pipe clamp. Background Art

[0002] Pipe clamps are commonly used tools in pipeline installation and maintenance operations. However, traditional pipe clamps have some obvious shortcomings. They have a relatively simple structure and a single function, and can usually only perform simple clamping and rotation operations. In practical applications, traditional pipe clamps often cannot meet the requirements for situations where the screw-in distance of pipe fittings needs to be precisely controlled. Traditional pipe clamps have poor adaptability when clamping pipe fittings of different diameters, and the operation is not convenient enough. The operation of screwing in pipe fittings needs to be done manually and requires repeated clamping and loosening, which is cumbersome. In addition, traditional pipe clamps are not convenient to store and carry, and take up a large space. These shortcomings limit the efficiency and quality of pipeline construction and cannot adapt to the increasingly complex and diversified needs of modern pipeline installation and maintenance work. Summary of the invention

[0003] Based on this, it is necessary to provide an adjustable limit-type pipe clamp to address the existing technical problems.

[0004] In order to solve the problems of the prior art, the technical solution adopted by the present invention is: The present invention provides an adjustable limit-type pipe clamp, comprising a pipe clamp body, a first clamping part, a second clamping part, a connecting support mechanism and a clamping drive mechanism, wherein the first clamping part is arranged at the clamping end of the pipe clamp body, the second clamping part is installed on the connecting support mechanism, the connecting support mechanism is installed on the side wall of the pipe clamp body, the clamping drive mechanism is installed on the pipe clamp body, the clamping drive mechanism is connected to the first clamping part in a transmission manner, the first clamping part is provided with a rotatable rotating frame, the clamping end of the pipe clamp body is provided with a first avoidance groove, the rotating frame is provided with a second avoidance groove, the rotating frame is provided with a second avoidance groove, and the rotating frame is provided with a second avoidance groove. A first pipe wall clamp and a second pipe wall clamp are slidably mounted on the frame, and a third pipe wall clamp is provided on the second clamping portion. The connecting support mechanism comprises a mounting frame, a supporting frame, a hinged column and an in-place interference support. The mounting frame is fixedly mounted on the side wall of the pipe clamp body along the length direction of the pipe clamp body, the hinged column is mounted on the mounting frame and is located on a side close to the clamping end of the pipe clamp body, the supporting frame is arranged on the mounting frame and connected to the hinged column, the in-place interference support is sleeved on the supporting frame, the in-place interference support is threadedly connected to the supporting frame, and the in-place interference support can be in interference connection with the pipe clamp body.

[0005] Preferably, the connecting support mechanism also includes a rectangular slider, a rectangular limit frame is fixedly provided on the mounting frame, the rectangular limit frame is located on a side of the mounting frame close to the pipe clamp body and at one end close to the first clamping portion, the support frame slides in cooperation with the rectangular limit frame, a central sliding groove is provided in the support frame, the rectangular slider is installed on the hinge column, the hinge column is slidably connected to the support frame through the central sliding groove and the rectangular slider, an external thread is provided on the outer wall of the support frame, a threaded transmission ring is provided on the support that is rotated in place, the threaded transmission ring is provided with an internal thread that cooperates with the external thread of the support frame, and a second limit plate that fits with the outer wall of the support frame is provided on the mounting frame.

[0006] Preferably, the external thread of the support frame is a bidirectional thread, and a locking stud is provided on one side of the support frame close to the second clamping portion, and the thread direction of the locking stud is opposite to the internal thread direction of the threaded transmission ring.

[0007] Preferably, a hinged contact plate and a support rod are hingedly provided on the side wall of the in-place contact support, the hinged contact plate is arranged on the outer side wall of the in-place contact support, the hinge axis of the hinged contact plate and the in-place contact support is located on the side of the in-place contact support close to the first clamping part, one end of the support rod is hinged to the in-place contact support, and the other end of the support rod can be connected to the side wall of the hinged contact plate, and a limit contact plate is provided on the side wall of the pipe clamp body close to the in-place contact support, and a first pressure sensor is provided on the limit contact plate.

[0008] Preferably, a contraction angle is provided at one end of the rectangular limit frame close to the support frame. Preferably, a first ring gear is provided on the outer side wall of the rotating frame, and the clamping drive mechanism includes a first rotary driver, a transmission column, a first drive gear and a transmission belt. Two transmission columns and two first drive gears are provided, and the two first drive gears are respectively fixedly mounted on the two transmission columns, and the two transmission columns are respectively arranged on both sides of the first avoidance groove of the pipe clamp body, and the first drive gear is meshed with the first ring gear. The first rotary driver is fixedly mounted on one end of the pipe clamp body away from the first clamping part, and the transmission belt is sleeved on the output ends of the two transmission columns and the first drive gear.

[0009] The locking plate is provided with an arc-shaped locking claw for clamping the end portion of the bidirectional threaded rod.

[0010] Preferably, the clamping drive mechanism also includes a second rotary drive, a linear push rod and a card joint, the linear push rod is fixedly mounted in the pipe clamp body, the output direction of the linear push rod is consistent with the length direction of the pipe clamp body, the output end of the linear push rod is fixedly connected to the push plate, the second rotary drive is fixedly mounted on the push plate, the output end of the second rotary drive is fixedly connected to the first rotating shaft, the card joint is fixedly mounted on one end of the first rotating shaft close to the bidirectional threaded rod, and the first rotating shaft is transmission connected to the bidirectional threaded rod through the card joint.

[0011] Preferably, a second pressure sensor is provided on the first tube wall clamp, the first tube wall clamp is a V-shaped clamping plate, the second tube wall clamp is an inclined clamping plate, and the first tube wall clamp and the second tube wall clamp form a four-point clamp on the tube wall.

[0012] Preferably, a third pressure sensor is provided on the third tube wall clamp, and the second clamping part is also provided with a clamping driver, which is installed on the support frame, and the output end of the clamping driver is transmission connected to the third tube wall clamp, the third tube wall clamp is hinged to the end of the support frame through a hinge seat, and a locking buckle is provided on the third tube wall clamp.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. This adjustable limit-type pipe clamp can accurately control the screw-in distance of the pipe fittings, and ensures that the pipe fittings are installed in place by adjusting and limiting the in-place abutment support, greatly improving the accuracy and quality of pipeline connection. It can adapt to the clamping of pipe fittings of different diameters, and through a variety of clamping components and adjustable structures, it can achieve effective operation of pipe fittings of different specifications, thus improving the scope of application of the pipe clamp.

[0014] 2. The support frame in the connecting support mechanism can be deflected and folded, which is convenient for storage when not in use, reducing space occupation and facilitating carrying and transporting.

[0015] 3. Through the coordinated work of the clamping drive mechanism and various transmission components, automatic and semi-automatic clamping, rotation and limiting operations are realized, which improves work efficiency and reduces the labor intensity of operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional structure diagram of an adjustable limit-type pipe clamp. Figure 1 ; Figure 2 This is a three-dimensional structure diagram of an adjustable limit-type pipe clamp. Figure 2 ; Figure 3 A schematic diagram of the three-dimensional structure of the second clamping part and the connecting support mechanism in an adjustable limit-type pipe clamp Figure 1 ; Figure 4 A schematic diagram of the three-dimensional structure of the second clamping part and the connecting support mechanism in an adjustable limit-type pipe clamp Figure 2 ; Figure 5 It is a schematic diagram of a partial three-dimensional structure of a connecting support mechanism in an adjustable limit-type pipe clamp; Figure 6 The present invention is a three-dimensional structural schematic diagram of a first clamping part and a clamping drive mechanism in an adjustable limit-type pipe clamp; Figure 7 A schematic diagram of a partial three-dimensional structure of the first clamping part and the clamping drive mechanism in an adjustable limit-type pipe clamp Figure 1 ; Figure 8 The present invention is a front view of the structure of the first clamping part and the clamping drive mechanism of an adjustable limit type pipe clamp; Fig. 9 A schematic diagram of the three-dimensional structure of the first clamping part and the clamping drive mechanism of an adjustable limit type pipe clamp Figure 2 ; Fig.10 The invention discloses a side view of a first clamping part of an adjustable limit-type pipe clamp.

[0017] The numbers in the figure are: 1. Pipe clamp body; 2. First clamping part; 3. Second clamping part; 4. Connecting support mechanism; 5. Clamping drive mechanism; 6. Rotating frame; 7. First avoidance groove; 8. Second avoidance groove; 9. First pipe wall clamp; 10. Second pipe wall clamp; 11. Third pipe wall clamp; 12. Mounting frame; 13. Support frame; 14. Articulated column; 15. In-place resistance support; 16. Rectangular slider; 17. Rectangular limit frame; 18. Center sliding groove; 19. External thread; 20. Threaded transmission ring; 21. Second limit plate; 22. Locking stud; 23. Articulated resistance plate; 24. Support rod; 25. Limit resistance Touch plate; 26, first pressure sensor; 27, contraction inclination; 28, first ring gear; 29, first rotary driver; 30, transmission column; 31, first drive gear; 32, transmission belt; 33, bidirectional threaded rod; 34, first slider; 35, second slider; 36, locking plate; 37, push plate; 38, abutment unlocking plate; 39, first rotating shaft; 40, horizontal slide groove; 41, locking spring; 42, arc-shaped locking claw; 43, second rotary driver; 44, linear push rod; 45, card joint; 46, second pressure sensor; 47, third pressure sensor; 48, clamping driver. DETAILED DESCRIPTION

[0018] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0019] like Figure 1-10 The adjustable limit-type pipe clamp shown in the figure includes a pipe clamp body 1, a first clamping part 2, a second clamping part 3, a connecting support mechanism 4 and a clamping drive mechanism 5, wherein the first clamping part 2 is arranged at the clamping end of the pipe clamp body 1, the second clamping part 3 is installed on the connecting support mechanism 4, the connecting support mechanism 4 is installed on the side wall of the pipe clamp body 1, the clamping drive mechanism 5 is installed on the pipe clamp body 1, the clamping drive mechanism 5 is transmission-connected with the first clamping part 2, the first clamping part 2 is provided with a rotatable rotating frame 6, the clamping end of the pipe clamp body 1 is provided with a first avoidance groove 7, the rotating frame 6 is provided with a second avoidance groove 8, and the rotating frame 6 is slidably installed with a first pipe wall The second clamping part 3 is provided with a third pipe wall clamping jaw 11, and the connecting support mechanism 4 includes a mounting frame 12, a support frame 13, a hinged column 14 and an in-place interference support 15. The mounting frame 12 is fixedly mounted on the side wall of the pipe clamp body 1 along the length direction of the pipe clamp body 1, and the hinged column 14 is mounted on the mounting frame 12 and is located on the side close to the clamping end of the pipe clamp body 1. The support frame 13 is arranged on the mounting frame 12 and is connected to the hinged column 14. The in-place interference support 15 is sleeved on the support frame 13. The in-place interference support 15 is threadedly connected to the support frame 13, and the in-place interference support 15 can be in-contact connected with the pipe clamp body 1.

[0020] The first clamping part 2 provided on the pipe clamp body 1 is used to clamp the pipe to be installed, that is, the first pipe wall clamping jaw 9 and the second pipe wall clamping jaw 10 are close to each other to clamp the pipe wall located in the middle of the pipe, and the second clamping part 3 is used to clamp the existing installed pipe, and the third pipe wall clamping jaw 11 realizes the clamping function. By connecting the second clamping part 3 with the installed pipe, the limited pipe clamp shown in the present invention can be positioned to ensure the accuracy of installation. When working, the connection between the second clamping part 3 and the pipe clamp body 1 is realized by connecting the support mechanism 4. When the clamping drive mechanism 5 drives the rotating frame 6 in the first clamping part 2 to rotate, it can drive the pipe to be installed clamped therewith to rotate and tighten it.

[0021] During the tightening process, the distance between the pipe to be installed and the installed pipe will be shortened, that is, the distance between the first clamping part 2 and the second clamping part 3 will be shortened. During actual installation, different pipes are usually screwed in at different distances. Therefore, it is necessary to adjust the distance limit according to actual needs. The pipe clamp body 1 is limited by the in-place interference support 15 installed on the support frame 13. The distance of the pipe screwed in can be controlled by adjusting the distance of the in-place interference support 15 on the support frame 13. The design of the mounting frame 12 and the hinged column 14 enables the support frame 13 to perform a ninety-degree deflection operation. When not working, the support frame 13 is folded in the mounting frame 12, and the length direction of the support frame 13 is consistent with the length direction of the mounting frame 12 and the pipe clamp body 1, which is convenient for storage and carrying. When working, the support frame 13 is deflected outward by ninety degrees. At this time, the support frame 13 and the pipe clamp body 1 are vertically arranged, and the first clamping part 2 and the second clamping part 3 can clamp the outer wall of the pipe fitting normally. This arrangement method can make the support frame 13 slide horizontally on the pipe clamp body 1, and its sliding direction is perpendicular to the length direction of the pipe clamp body 1. That is, when the pipe fitting is tightened, the second clamping part 3 remains stationary, and the entire pipe clamp body 1 will move in the direction close to the second clamping part 3. At this time, sliding occurs between the support frame 13 and the pipe clamp body 1. When the pipe clamp body 1 stops displacing under the limit of the support 15 in place, the pipe fitting is tightened in place, and the accurate installation and screwing-in of the pipe fitting is achieved.

[0022] The connecting support mechanism 4 also includes a rectangular slider 16, and a rectangular limit frame 17 is fixedly provided on the mounting frame 12. The rectangular limit frame 17 is located on a side of the mounting frame 12 close to the pipe clamp body 1 and at one end close to the first clamping portion 2. The support frame 13 slides with the rectangular limit frame 17, and a central sliding groove 18 is provided in the support frame 13. The rectangular slider 16 is installed on the hinge column 14, and the hinge column 14 is slidably connected to the support frame 13 through the central sliding groove 18 and the rectangular slider 16. An external thread 19 is provided on the outer wall of the support frame 13, and a threaded transmission ring 20 is provided on the rotation of the support 15 in place. The threaded transmission ring 20 is provided with an internal thread that cooperates with the external thread 19 of the support frame 13, and a second limit plate 21 that fits with the outer wall of the support frame 13 is provided on the mounting frame 12.

[0023] The rectangular slider 16 cooperates with the central sliding groove 18 so that the support frame 13 can slide along the length direction of the central sliding groove 18. When the support frame 13 deflects, it can rotate around the axis of the hinge column 14. The rectangular limit frame 17 is used to limit the support frame 13 that has been unfolded, so that the support frame 13 and the pipe clamp body 1 can slide stably relative to each other, prevent angular direction deviation during sliding, ensure the connection accuracy of the pipe fittings, and prevent the pipe fittings from being misaligned.

[0024] The in-place abutment support 15 realizes the horizontal displacement function on the support frame 13 by rotating the threaded transmission ring 20. It is worth mentioning that a scale can be set on the support frame 13 to facilitate the operator to better realize the limit adjustment function. The second limit plate 21 can improve the stability of the support frame 13 on the pipe clamp body 1 to ensure that the support frame 13 and the pipe clamp body 1 are in a vertical state.

[0025] The external thread 19 of the support frame 13 is a bidirectional thread. A locking stud 22 is provided on one side of the support frame 13 close to the second clamping portion 3 . The thread direction of the locking stud 22 is opposite to the internal thread direction of the threaded transmission ring 20 .

[0026] The locking stud 22 can further lock and limit the in-place abutment support 15 to prevent the in-place abutment support 15 from being displaced during operation, thereby preventing the screw-in amount from being inaccurate.

[0027] A hinged contact plate 23 and a support rod 24 are hingedly provided on the side wall of the in-place contact support 15. The hinged contact plate 23 is arranged on the outer side wall of the in-place contact support 15. The hinge axis of the hinged contact plate 23 and the in-place contact support 15 is located on the side of the in-place contact support 15 close to the first clamping part 2. One end of the support rod 24 is hinged to the in-place contact support 15, and the other end of the support rod 24 can be connected to the side wall of the hinged contact plate 23. A limit contact plate 25 is provided on the side wall of the pipe clamp body 1 close to the in-place contact support 15, and a first pressure sensor 26 is provided on the limit contact plate 25.

[0028] During operation, the displacement of the pipe clamp body 1 drives the limit contact plate 25 installed thereon to move synchronously. The limit contact plate 25 contacts the hinged contact plate 23 in the process of approaching the second clamping part 3. At this time, the pipe clamp body 1 cannot move forward, thereby realizing the limit function. The first pressure sensor 26 on the limit contact plate 25 is used to detect the contact pressure. When the pressure reaches the preset value, the screwing-in installation operation of the pipe fitting is stopped to realize the installation process.

[0029] An end of the rectangular limiting frame 17 close to the supporting frame 13 is provided with a contraction angle 27 .

[0030] The contraction angle 27 facilitates the support frame 13 to be inserted into the rectangular limit frame 17 in the initial state, so as to complete subsequent work.

[0031] A first ring gear 28 is provided on the outer wall of the rotating frame 6, and the clamping drive mechanism 5 includes a first rotation driver 29, a transmission column 30, a first driving gear 31 and a transmission belt 32. There are two transmission columns 30 and two first driving gears 31. The two first driving gears 31 are respectively fixedly mounted on the two transmission columns 30. The two transmission columns 30 are respectively arranged on both sides of the first avoidance groove 7 of the pipe clamp body 1. The first driving gear 31 is meshed with the first ring gear 28. The first rotation driver 29 is fixedly mounted on one end of the pipe clamp body 1 away from the first clamping part 2, and the transmission belt 32 is sleeved on the output ends of the two transmission columns 30 and the first driving gear 31.

[0032] When it is necessary to rotate the pipe, the clamping drive mechanism 5 is started, the output of the first rotation driver 29 drives the transmission belt 32 to move, the transmission belt 32 drives the transmission column 30 to rotate, the transmission column 30 drives the first driving gear 31 fixedly connected thereto to rotate, and the first driving gear 31 drives the rotating frame 6 to rotate through the first ring gear 28 meshing therewith. Since the rotating frame 6 is provided with a first avoidance groove 7, the two transmission columns 30 are located at both ends of the rotating frame 6. This design can ensure that at least one first driving gear 31 is meshed with the first ring gear 28 at any time, thereby ensuring the continuity of the transmission.

[0033] The first clamping portion 2 also includes a bidirectional threaded rod 33, a first slider 34, a second slider 35, a locking plate 36, a pushing plate 37, an abutting unlocking plate 38 and a first rotating shaft 39. A horizontal slide groove 40 is provided on the rotating frame 6. The first slider 34 and the second slider 35 are both slidably arranged in the horizontal slide groove 40. The bidirectional threaded rod 33 is rotatably installed in the horizontal slide groove 40. The bidirectional threaded rod 33 is threadedly connected with the first slider 34 and the second slider 35 respectively. The locking plate 36 is horizontally arranged at one end of the rotating frame 6. A locking spring 41 is provided between the locking plate 36 and the rotating frame 6. The locking spring 41 is vertically arranged. Both ends of the locking spring 41 They are respectively fixedly connected to the locking plate 36 and the rotating frame 6, the pushing plate 37 is slidably set on the pipe clamp body 1, the resistance unlocking plate 38 is set on the pushing plate 37, the first rotating shaft 39 is rotatably set on the resistance unlocking plate 38, the first rotating shaft 39 is transmission connected with the bidirectional threaded rod 33, the resistance unlocking plate 38 is transmission connected with the locking plate 36, the clamping drive mechanism 5 is transmission connected with the pushing plate 37 and the first rotating shaft 39, the first pipe wall clamping jaw 9 is fixedly installed on the first slider 34, the second pipe wall clamping jaw 10 is fixedly installed on the second slider 35, and the locking plate 36 is provided with an arc-shaped locking claw 42 for clamping the end of the bidirectional threaded rod 33.

[0034] When the first clamping part 2 clamps the pipe fitting, the clamping drive mechanism 5 drives the bidirectional threaded rod 33 connected thereto to rotate, and the bidirectional threaded rod 33 drives the first slider 34 and the second slider 35 threadedly connected thereto to slide in the horizontal slide groove 40, and the first slider 34 and the second slider 35 approach each other, thereby driving the first pipe wall clamp 9 and the second pipe wall clamp 10 fixedly installed thereon to approach each other, so as to clamp the pipe fitting at the center. In order to prevent the second pipe wall clamp 10 from interfering with the loading and unloading of the pipe fitting when clamping the pipe fitting, the bidirectional threaded rod 33 is of segmented design, and the two sections of the bidirectional threaded rod 33 are connected by a universal shaft, which is used to drive the bidirectional threaded rod 33 of the second slider 35, gradually moving away from the first avoidance groove 7 in the direction extending outward from the bottom of the first avoidance groove 7, and horizontally The corresponding part of the slide groove 40 is also set to an inclined state. This method can ensure that when the second slider 35 and the first slider 34 move in opposite directions, the second slider 35 gradually moves away from the second avoidance groove 8, thereby ensuring that the pipe fitting can be avoided when entering and exiting. After clamping is completed, the push plate 37 retracts, and the locking plate 36 presses the arc-shaped locking claw 42 firmly on the end of the two-way threaded rod 33 under the elastic force of the locking spring 41, so that it cannot rotate, thereby maintaining the clamping state of the pipe fitting. When unlocking, the push plate 37 moves forward, contacts the unlocking plate 38, drives the locking plate 36 to compress the locking spring 41, and makes the arc-shaped locking claw 42 move away from the two-way threaded rod 33, thereby realizing the unlocking function, and the first rotating shaft 39 rotates to drive the two-way threaded rod 33 connected thereto to rotate in the opposite direction, thereby realizing the unlocking function of the pipe fitting.

[0035] The clamping drive mechanism 5 also includes a second rotary driver 43, a linear push rod 44 and a clamp joint 45. The linear push rod 44 is fixedly installed in the pipe clamp body 1. The output direction of the linear push rod 44 is consistent with the length direction of the pipe clamp body 1. The output end of the linear push rod 44 is fixedly connected to the push plate 37. The second rotary driver 43 is fixedly installed on the push plate 37. The output end of the second rotary driver 43 is fixedly connected to the first rotating shaft 39. The clamp joint 45 is fixedly installed on one end of the first rotating shaft 39 close to the bidirectional threaded rod 33. The first rotating shaft 39 is transmission-connected to the bidirectional threaded rod 33 through the clamp joint 45.

[0036] The second rotary driver 43 is used to drive the first rotating shaft 39 to rotate. When the first rotating shaft 39 rotates, it drives the bidirectional threaded rod 33 to rotate synchronously through the clamping joint 45, thereby realizing the clamping or loosening function of the first clamping part 2 on the pipe fitting. The linear push rod 44 is used to drive the pushing plate 37 to move horizontally along the length direction of the pipe clamp body 1.

[0037] The first pipe wall clamp 9 is provided with a second pressure sensor 46 . The first pipe wall clamp 9 is a V-shaped clamping plate, and the second pipe wall clamp 10 is an inclined clamping plate. The first pipe wall clamp 9 and the second pipe wall clamp 10 form a four-point clamping on the pipe wall.

[0038] The second pressure sensor 46 is used to detect the clamping force of the first clamping part 2 on the outer wall of the pipe to be installed. The clamping force required for pipes of different materials is different, and can be adaptively adjusted according to the pressure detection. The four-point clamping method can adapt to the clamping function of pipes of different diameters and lengths, thereby improving the application range of the pipe clamp.

[0039] The third tube wall clamp 11 is provided with a third pressure sensor 47, and the second clamping part 3 is also provided with a clamping driver 48, which is installed on the support frame 13, and the output end of the clamping driver 48 is transmission-connected with the third tube wall clamp 11, and the third tube wall clamp 11 is hinged to the end of the support frame 13 through a hinge seat, and a locking buckle is provided on the third tube wall clamp 11.

[0040] The third pressure sensor 47 is used to detect the clamping force of the second clamping part 3 on the pipe at the fixed position. The clamping force required for the pipe wall of different materials is different, and it can be adaptively adjusted according to the pressure detection. The clamping driver 48 is used to drive the third pipe wall clamp 11 to realize the clamping function of the pipe. The hinged design of the third pipe wall clamp 11 and the support frame 13 is convenient for contraction and folding, and then convenient for carrying and transporting. The locking buckle is convenient for locking the third pipe wall clamp 11 and the support frame 13 when clamping.

[0041] The above embodiments only express one or several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. An adjustable limit-type pipe clamp, It is characterized in that The invention comprises a pipe clamp body (1), a first clamping part (2), a second clamping part (3), a connecting support mechanism (4) and a clamping drive mechanism (5), wherein the first clamping part (2) is arranged at the clamping end of the pipe clamp body (1), the second clamping part (3) is mounted on the connecting support mechanism (4), the connecting support mechanism (4) is mounted on the side wall of the pipe clamp body (1), the clamping drive mechanism (5) is mounted on the pipe clamp body (1), the clamping drive mechanism (5) is connected to the first clamping part (2) by transmission, the first clamping part (2) is provided with a rotatable rotating frame (6), the clamping end of the pipe clamp body (1) is provided with a first avoidance groove (7), the rotating frame (6) is provided with a second avoidance groove (8), and a first pipe wall clamping claw (9) and a second pipe wall clamping claw (9) are slidably mounted on the rotating frame (6). The invention relates to a wall clamp (10), wherein the second clamping portion (3) is provided with a third pipe wall clamp (11), and the connecting support mechanism (4) comprises a mounting frame (12), a support frame (13), a hinged column (14) and a contact support (15) in place, wherein the mounting frame (12) is fixedly mounted on the side wall of the pipe clamp body (1) along the length direction of the pipe clamp body (1), the hinged column (14) is mounted on the mounting frame (12) and is located on a side close to the clamping end of the pipe clamp body (1), the support frame (13) is arranged on the mounting frame (12) and is connected to the hinged column (14), the contact support (15) in place is sleeved on the support frame (13), the contact support (15) in place is threadedly connected to the support frame (13), and the contact support (15) in place is contact-connected to the pipe clamp body (1).

2. The adjustable limit-type pipe clamp according to claim 1, It is characterized in that The connecting support mechanism (4) further comprises a rectangular slider (16). A rectangular limit frame (17) is fixedly provided on the mounting frame (12). The rectangular limit frame (17) is located on a side of the mounting frame (12) close to the pipe clamp body (1) and at an end close to the first clamping portion (2). The support frame (13) is slidably matched with the rectangular limit frame (17). A central sliding groove (18) is provided in the support frame (13). The rectangular slider (16) is mounted on the hinge column (14). The hinge column (14) is slidably connected to the support frame (13) through the central sliding groove (18) and the rectangular slider (16). An outer wall of the support frame (13) is provided with an external thread (19). A threaded transmission ring (20) is rotatably provided on the contact support (15) in place. The threaded transmission ring (20) is provided with an internal thread that matches the external thread (19) of the support frame (13). A second limit plate (21) is provided on the mounting frame (12) and is in contact with the outer wall of the support frame (13).

3. The adjustable limit-position pipe clamp according to claim 2, It is characterized in that The external thread (19) of the support frame (13) is a bidirectional thread. A locking stud (22) is provided on one side of the support frame (13) close to the second clamping portion (3). The thread direction of the locking stud (22) is opposite to the internal thread direction of the threaded transmission ring (20).

4. The adjustable limit-position pipe clamp according to claim 3, It is characterized in that A hinged contact plate (23) and a support rod (24) are hingedly provided on the side wall of the in-place contact support (15); the hinged contact plate (23) is arranged on the outer side wall of the in-place contact support (15); a hinge axis between the hinged contact plate (23) and the in-place contact support (15) is located on a side of the in-place contact support (15) close to the first clamping portion (2); one end of the support rod (24) is hingedly connected to the in-place contact support (15); the other end of the support rod (24) can be contact-connected with the side wall of the hinged contact plate (23); a limit contact plate (25) is provided on the side wall of the pipe clamp body (1) close to the in-place contact support (15); and a first pressure sensor (26) is provided on the limit contact plate (25).

5. The adjustable limit-position pipe clamp according to claim 2, It is characterized in that One end of the rectangular limiting frame (17) close to the supporting frame (13) is provided with a contraction angle (27).

6. The adjustable limit-position pipe clamp according to claim 2, It is characterized in that A first ring tooth (28) is provided on the outer wall of the rotating frame (6). The clamping drive mechanism (5) comprises a first rotating driver (29), a transmission column (30), a first driving gear (31) and a transmission toothed belt (32). Two transmission columns (30) and two first driving gears (31) are provided. The two first driving gears (31) are respectively fixedly mounted on the two transmission columns (30). The two transmission columns (30) are respectively arranged on both sides of a first avoidance groove (7) of a pipe clamp body (1). The first driving gear (31) meshes with the first ring tooth (28). The first rotating driver (29) is fixedly mounted on an end of the pipe clamp body (1) away from the first clamping portion (2). The transmission toothed belt (32) is sleeved on the output ends of the two transmission columns (30) and the first driving gear (31).

7. The adjustable limit-position pipe clamp according to claim 6, It is characterized in that The first clamping portion (2) further comprises a bidirectional threaded rod (33), a first slider (34), a second slider (35), a locking plate (36), a pushing plate (37), an abutting unlocking plate (38) and a first rotating shaft (39); a horizontal slide groove (40) is provided on the rotating frame (6); the first slider (34) and the second slider (35) are both slidably arranged in the horizontal slide groove (40); the bidirectional threaded rod (33) is rotatably installed in the horizontal slide groove (40); the bidirectional threaded rod (33) is threadedly connected to the first slider (34) and the second slider (35) respectively; the locking plate (36) is horizontally arranged at one end of the rotating frame (6); a locking spring (41) is provided between the locking plate (36) and the rotating frame (6); the locking spring (41) is vertically arranged; the locking spring (41) The two ends of the pipe clamp are respectively fixedly connected to the locking plate (36) and the rotating frame (6), the pushing plate (37) is slidably arranged on the pipe clamp body (1), the abutting unlocking plate (38) is arranged on the pushing plate (37), the first rotating shaft (39) is rotatably arranged on the abutting unlocking plate (38), the first rotating shaft (39) is transmission-connected to the bidirectional threaded rod (33), the abutting unlocking plate (38) is transmission-connected to the locking plate (36), the clamping drive mechanism (5) is transmission-connected to both the pushing plate (37) and the first rotating shaft (39), the first pipe wall clamping claw (9) is fixedly mounted on the first slider (34), the second pipe wall clamping claw (10) is fixedly mounted on the second slider (35), and the locking plate (36) is provided with an arc-shaped locking claw (42) for clamping the end of the bidirectional threaded rod (33).

8. The adjustable limit-position pipe clamp according to claim 7, It is characterized in that The clamping drive mechanism (5) further comprises a second rotary drive (43), a linear push rod (44) and a clamp joint (45); the linear push rod (44) is fixedly mounted in the pipe clamp body (1); the output direction of the linear push rod (44) is consistent with the length direction of the pipe clamp body (1); the output end of the linear push rod (44) is fixedly connected to the push plate (37); the second rotary drive (43) is fixedly mounted on the push plate (37); the output end of the second rotary drive (43) is fixedly connected to the first rotating shaft (39); the clamp joint (45) is fixedly mounted on one end of the first rotating shaft (39) close to the bidirectional threaded rod (33); the first rotating shaft (39) is transmission-connected to the bidirectional threaded rod (33) via the clamp joint (45).

9. The adjustable limit-position pipe clamp according to claim 8, It is characterized in that A second pressure sensor (46) is provided on the first tube wall clamp (9); the first tube wall clamp (9) is a V-shaped clamping plate; the second tube wall clamp (10) is an inclined clamping plate; the first tube wall clamp (9) and the second tube wall clamp (10) form a four-point clamping of the tube wall.

10. The adjustable limit-position pipe clamp according to claim 9, It is characterized in that The third pipe wall clamp (11) is provided with a third pressure sensor (47), and the second clamping portion (3) is further provided with a clamping driver (48). The clamping driver (48) is mounted on the support frame (13), and the output end of the clamping driver (48) is transmission-connected to the third pipe wall clamp (11). The third pipe wall clamp (11) is hinged to the end of the support frame (13) via a hinge seat, and a locking buckle is provided on the third pipe wall clamp (11).

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