A tightening device for building ducts
By designing a tightening device for building pipe laying, hydraulic cylinders and air cylinders are used to provide automated and uniform tightening force, solving the problem of limited manual operation force and improving construction efficiency and sealing effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG HONGSANYE STEEL STRUCTURE ENG CO LTD
- Filing Date
- 2025-10-14
- Publication Date
- 2026-08-04
AI Technical Summary
Current building pipe connection operations rely on manual operation, resulting in limited force, time and labor consumption, low construction efficiency, and difficulty in ensuring uniform tightening force, which easily leads to problems with poor sealing.
A tightening device for building pipe laying was designed, including a movable base, a fixed tightening mechanism and a docking adjustment component. It uses hydraulic cylinders and air cylinders to provide uniform and controllable axial tightening force, and adjusts the fixed clamping distance by driving a screw with a motor to achieve automated pipe connection.
It achieves stable clamping and uniform tightening of pipes of different diameters, reduces labor intensity, improves construction efficiency, and adapts to the pipe length and docking spacing requirements of different construction scenarios.
Smart Images
Figure CN224592826U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building pipeline construction technology, and in particular to a tightening device for building pipe laying. Background Technology
[0002] During the construction of building pipelines, the connection between pipelines usually needs to be sealed and fixed through tightening operations. For example, after connecting the pipeline and the fitting, the sealing ring between the pipeline and the fitting needs to be compacted through tightening operations to avoid water leakage.
[0003] Currently, tightening operations for building pipe connections mostly rely on manual labor. Manual operation has limited strength, which is time-consuming, labor-intensive, and inefficient for large-scale pipe connection operations. Furthermore, manual operation makes it difficult to ensure uniform tightening force, which can easily lead to localized looseness and poor sealing, causing inconvenience to operators.
[0004] Therefore, a tightening device for building pipe laying is proposed. Utility Model Content
[0005] The purpose of this utility model is to provide a tightening device for building pipe connections, which can solve the problem that the tightening operation of existing building pipe connections mostly relies on manual operation. The manual operation has limited force, which is time-consuming and labor-intensive for large-scale pipe connection operations, resulting in low construction efficiency. In addition, manual operation is difficult to ensure uniform tightening force, which can easily lead to local looseness and poor sealing, thus causing inconvenience to operators.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a tightening device for building pipe laying, comprising a movable base, wherein the top of the movable base is provided with two fixed tightening mechanisms and a docking adjustment assembly that cooperates with the two fixed tightening mechanisms; The fixing and tightening mechanism includes an L-shaped seat. A tightening hydraulic cylinder is fixedly connected to one side of the L-shaped seat. The piston rod of the tightening hydraulic cylinder passes through the L-shaped seat and is fixedly connected to a moving block. A fixing clamp is fixedly connected to the top of the moving block. An L-shaped frame is fixedly connected to the rear side of the fixing clamp. Fixing cylinders are fixedly connected to the front and rear sides of the top of the L-shaped frame. The piston rods of the two fixing cylinders pass through the L-shaped frame and are fixedly connected to a movable clamp. Multiple arc-shaped grooves of different sizes are opened at the bottom of the movable clamp and the top of the fixing clamp. Rubber pads are fixedly connected in the arc-shaped grooves.
[0007] Preferably, the docking adjustment assembly includes a first fixing plate and a second fixing plate, which are respectively fixedly connected to the two sides of the top of the movable base. The inner walls of the first fixing plate and the second fixing plate are rotatably connected to a bidirectional screw via bearings. A forward and reverse motor that works with the bidirectional screw is fixedly connected to the left side of the first fixing plate. The output shaft of the forward and reverse motor is fixedly connected to one end of the bidirectional screw. Both sides of the surface of the bidirectional screw are threaded with internal thread blocks, and the tops of the two internal thread blocks are respectively fixedly connected to the bottoms of the two L-shaped seats.
[0008] Preferably, the front and rear sides of the right side of the first fixing plate are fixedly connected to limit guide rods, and the right sides of the two limit guide rods pass through two internal threaded blocks in sequence and are fixedly connected to the front and rear sides of the left side of the second fixing plate respectively.
[0009] Preferably, the front and rear sides of the two internal threaded blocks are provided with sliding holes for use with the limiting guide rod, and the inner wall of the sliding hole is slidably connected to the surface of the limiting guide rod.
[0010] Preferably, one side of the L-shaped seat is provided with a first through hole for use with a tightening hydraulic cylinder, and the piston rod surface of the tightening hydraulic cylinder is slidably connected to the inner wall of the first through hole. The front and rear sides of the top of the L-shaped frame are provided with second through holes for use with a fixing cylinder, and the piston rod surface of the fixing cylinder is slidably connected to the inner wall of the second through hole.
[0011] Preferably, the front and rear sides of the bottom of the movable block are fixedly connected to limit sliders, and the front and rear sides of the top of the L-shaped seat are provided with limit grooves that cooperate with the limit sliders. The side of the limit slider close to the inner wall of the limit groove is slidably connected to the inner wall of the limit groove.
[0012] Preferably, a controller is fixedly connected to the front side of the top of the movable base for use with the fixing and tightening mechanism and the docking adjustment assembly, and the controller is electrically connected to the fixing and tightening mechanism and the docking adjustment assembly.
[0013] Preferably, each of the four corners of the bottom of the movable base is provided with a caster wheel, and the caster wheel has a brake locking pedal.
[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. By setting up a fixed tightening mechanism, this application can stably clamp building pipes of different diameters when connecting building pipes. After the pipes are connected through fittings, it can provide uniform and controllable axial tightening power, eliminating the need for manual clamping of pipes and application of tightening force, reducing labor intensity and improving construction efficiency. 2. This application allows for free adjustment of the distance between two sets of fixed tightening mechanisms by setting up the docking adjustment component. This can meet the docking needs of short-distance pipelines as well as the intermediate docking needs of long-distance pipelines. There is no need to move the entire device to adjust the pipeline position, thus adapting to the pipeline length and docking spacing requirements under different construction scenarios. Attached Figure Description
[0015] Figure 1 This is an overall structural diagram of the tightening device for building pipe laying according to this utility model; Figure 2 In this utility model Figure 1 Front view structural diagram; Figure 3 This is an exploded structural diagram of the fixing and tightening mechanism in this utility model; Figure 4 This is a structural diagram showing the disassembled structure of the rubber pad and the arc-shaped groove in this utility model; Figure 5 This is an exploded structural diagram of the docking adjustment component in this utility model.
[0016] In the diagram: 1. Movable base; 2. Fixed tightening mechanism; 21. L-shaped seat; 22. Tightening hydraulic cylinder; 23. Movable block; 24. Fixed clamp; 25. L-shaped frame; 26. Fixed cylinder; 27. Movable clamp; 28. Arc groove; 29. Rubber pad; 3. Docking adjustment assembly; 31. First fixed plate; 32. Second fixed plate; 33. Bidirectional screw; 34. Forward and reverse motor; 35. Internal threaded block; 4. Limiting guide rod; 5. Sliding hole; 6. First through hole; 7. Second through hole; 8. Limiting slider; 9. Limiting slide groove; 10. Controller; 11. Universal wheel. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] Please see Figure 1-5 The present invention provides the following technical solution: A tightening device for building pipe laying includes a movable base 1, and two fixed tightening mechanisms 2 and a docking adjustment assembly 3 used in conjunction with the two fixed tightening mechanisms 2 are provided on the top of the movable base 1. The fixed tightening mechanism 2 includes an L-shaped seat 21. A tightening hydraulic cylinder 22 is fixedly connected to one side of the L-shaped seat 21. The piston rod of the tightening hydraulic cylinder 22 passes through the L-shaped seat 21 and is fixedly connected to a moving block 23. A fixed clamp 24 is fixedly connected to the top of the moving block 23. An L-shaped frame 25 is fixedly connected to the rear side of the fixed clamp 24. Fixed cylinders 26 are fixedly connected to the front and rear sides of the top of the L-shaped frame 25. The piston rods of the two fixed cylinders 26 pass through the L-shaped frame 25 and are fixedly connected to a movable clamp 27. Multiple arc-shaped grooves 28 of different sizes are opened at the bottom of the movable clamp 27 and the top of the fixed clamp 24. Rubber pads 29 are fixedly connected in the arc-shaped grooves 28.
[0019] In this embodiment: by setting up a movable base 1, a fixed tightening mechanism 2, and a docking adjustment component 3, the movable base 1 provides a supporting foundation for the entire device during use. The fixed tightening mechanism 2 can stably clamp building pipes of different diameters when connecting them to building pipes. After the pipes are docked through fittings, it can provide uniform and controllable axial tightening power, eliminating the need for manual clamping of pipes and application of tightening force, thus reducing labor intensity and improving construction efficiency. The docking adjustment component 3 allows for free adjustment of the distance between the two fixed tightening mechanisms 2, which can meet the docking needs of short-distance pipes as well as the intermediate docking needs of long-distance pipes, without having to move the entire device to adjust the pipe position. Therefore, it can adapt to the pipe length and docking spacing requirements under different construction scenarios.
[0020] Specifically, such as Figure 1 , Figure 2 , Figure 5 As shown, the docking adjustment assembly 3 includes a first fixing plate 31 and a second fixing plate 32. The first fixing plate 31 and the second fixing plate 32 are respectively fixedly connected to the two sides of the top of the movable base 1. The inner walls of the first fixing plate 31 and the second fixing plate 32 are rotatably connected to a bidirectional screw 33 through bearings. A forward and reverse motor 34 that works with the bidirectional screw 33 is fixedly connected to the left side of the first fixing plate 31. The output shaft of the forward and reverse motor 34 is fixedly connected to one end of the bidirectional screw 33. Both sides of the surface of the bidirectional screw 33 are threaded with internal thread blocks 35. The tops of the two internal thread blocks 35 are respectively fixedly connected to the bottoms of the two L-shaped seats 21.
[0021] Specifically, such as Figure 1 , Figure 2 , Figure 5 As shown, the front and rear sides of the right side of the first fixing plate 31 are fixedly connected to limit guide rods 4. The right sides of the two limit guide rods 4 pass through two internal threaded blocks 35 in sequence and are fixedly connected to the front and rear sides of the left side of the second fixing plate 32 respectively.
[0022] Specifically, such as Figure 5As shown, the front and rear sides of the two internal threaded blocks 35 are provided with sliding holes 5 for use with the limiting guide rod 4. The inner wall of the sliding hole 5 is slidably connected to the surface of the limiting guide rod 4.
[0023] In this embodiment: by setting a first fixing plate 31, a second fixing plate 32, a bidirectional screw 33, a forward and reverse motor 34, internal thread blocks 35, a limiting guide rod 4, and a sliding hole 5, in use, by starting the forward and reverse motor 34, the output shaft of the forward and reverse motor 34 drives the bidirectional screw 33 to rotate forward or in reverse within the first fixing plate 31 and the second fixing plate 32 through bearings. Through the forward or reverse rotation of the bidirectional screw 33, the two internal thread blocks 35 move simultaneously in opposite or disjoint directions under the guidance of the threads and the limiting guide rod 4. The two internal thread blocks 35 will drive the two L-shaped seats 21 to move in opposite or disjoint directions, thereby adjusting the distance between the two sets of fixing and tightening mechanisms 2 to adapt to the length of the connecting pipe. The setting of the limiting guide rod 4 can guide and limit the two internal thread blocks 35 to prevent the two internal thread blocks 35 from shaking. The setting of the sliding hole 5 allows the two internal thread blocks 35 to slide stably on the surface of the limiting guide rod 4.
[0024] Specifically, such as Figure 3 As shown, a first through hole 6 is provided on one side of the L-shaped seat 21 to cooperate with the tightening hydraulic cylinder 22. The piston rod surface of the tightening hydraulic cylinder 22 is slidably connected to the inner wall of the first through hole 6. The front and rear sides of the top of the L-shaped frame 25 are provided with second through holes 7 to cooperate with the fixing cylinder 26. The piston rod surface of the fixing cylinder 26 is slidably connected to the inner wall of the second through hole 7.
[0025] Specifically, such as Figure 1 , Figure 3 As shown, the front and rear sides of the bottom of the movable block 23 are fixedly connected to the limiting slider 8, and the front and rear sides of the top of the L-shaped seat 21 are provided with limiting grooves 9 that cooperate with the limiting slider 8. The side of the limiting slider 8 that is close to the inner wall of the limiting groove 9 is slidably connected to the inner wall of the limiting groove 9.
[0026] In this embodiment: by setting the first through hole 6, the piston rod of the tightening hydraulic cylinder 22 can pass through the L-shaped seat 21 for telescopic output; by setting the second through hole 7, the piston rod of the fixed cylinder 26 can pass through the L-shaped frame 25 for telescopic output; by setting the limiting slider 8 and the limiting groove 9, the moving block 23 can be guided and limited so that the moving block 23 will not shake.
[0027] Specifically, such as Figure 1 , Figure 2As shown, a controller 10 is fixedly connected to the front side of the top of the movable base 1, which works in conjunction with the fixing and tightening mechanism 2 and the docking adjustment assembly 3. The controller 10 is electrically connected to the fixing and tightening mechanism 2 and the docking adjustment assembly 3.
[0028] Specifically, such as Figure 1 , Figure 2 As shown, omnidirectional wheels 11 are provided at the four corners of the bottom of the mobile base 1, and each omnidirectional wheel 11 has a brake locking pedal.
[0029] In this embodiment: by setting the controller 10, the fixing and tightening mechanism 2 and the docking and adjusting component 3 can be easily operated. By setting the universal wheels 11, the movable base 1 can be moved, and after moving, it can be locked by stepping on the brake locking pedal.
[0030] Working Principle: In use, first, move the device to the construction position and lock it by using the casters 11 with brake locking pedals at the bottom of the base 1. Then, adjust the distance between the two fixed tightening mechanisms 2 according to the required pipe length. The controller 10 can start the forward and reverse motor 34, causing the output shaft of the forward and reverse motor 34 to drive the bidirectional screw 33 to rotate forward or in reverse within the first fixed plate 31 and the second fixed plate 32 through bearings. The forward or reverse rotation of the bidirectional screw 33 causes the two internal thread blocks 35 to move simultaneously in opposite or disjoint directions under the guidance of the threads and the limiting guide rod 4. The two internal thread blocks 35 will drive the two L-shaped seats 21 to move in opposite or disjoint directions, thereby adjusting the distance between the two sets of fixed tightening mechanisms 2 to adapt to the length of the pipe to be connected. Then, place the two sections of pipe to be connected on the two fixed tightening mechanisms respectively. On the fixed clamp 24 of mechanism 2, select the arc groove 28 corresponding to the pipe diameter, and then start the two fixed cylinders 26 on the L-shaped frame 25 through the controller 10, so that its piston rod pushes the movable clamp 27 down to cooperate with the fixed clamp 24. The rubber pad 29 in the arc groove 28 is used to firmly clamp the pipe. Then, the connector for pipe connection is placed between the two pipe sections. Then, the tightening hydraulic cylinders 22 on the two L-shaped seats 21 are started through the controller 10, so that the piston rods of the two tightening hydraulic cylinders 22 push the two moving blocks 23 to move towards the middle, which can drive the two pipe sections to move closer to the pipe fitting. The two pipe sections are inserted into the connecting pipe fitting from both sides and precise pressure is applied to complete the sealing and tightening. There is no need for manual clamping of pipes and application of tightening force, which reduces labor intensity and improves construction efficiency. After the operation is completed, the controller 10 resets all components and removes the connected pipe.
[0031] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A tightening device for building pipe laying, comprising a movable base (1), characterized in that: The top of the movable base (1) is provided with two fixing and tightening mechanisms (2) and a docking adjustment assembly (3) that works in conjunction with the two fixing and tightening mechanisms (2); The fixed tightening mechanism (2) includes an L-shaped seat (21). A tightening hydraulic cylinder (22) is fixedly connected to one side of the L-shaped seat (21). The piston rod of the tightening hydraulic cylinder (22) passes through the L-shaped seat (21) and is fixedly connected to a moving block (23). A fixed clamp (24) is fixedly connected to the top of the moving block (23). An L-shaped frame (25) is fixedly connected to the rear side of the fixed clamp (24). Fixed cylinders (26) are fixedly connected to the front and rear sides of the top of the L-shaped frame (25). The piston rods of the two fixed cylinders (26) pass through the L-shaped frame (25) and are fixedly connected to a movable clamp (27). Multiple arc-shaped grooves (28) of different sizes are opened at the bottom of the movable clamp (27) and the top of the fixed clamp (24). A rubber pad (29) is fixedly connected in the arc-shaped groove (28).
2. The tightening device for building pipe laying according to claim 1, characterized in that: The docking adjustment assembly (3) includes a first fixing plate (31) and a second fixing plate (32). The first fixing plate (31) and the second fixing plate (32) are respectively fixedly connected to the two sides of the top of the movable base (1). The inner walls of the first fixing plate (31) and the second fixing plate (32) are rotatably connected to a bidirectional screw (33) through bearings. The left side of the first fixing plate (31) is fixedly connected to a forward and reverse motor (34) that works with the bidirectional screw (33). The output shaft of the forward and reverse motor (34) is fixedly connected to one end of the bidirectional screw (33). Both sides of the surface of the bidirectional screw (33) are connected to internal thread blocks (35) by threads. The tops of the two internal thread blocks (35) are respectively fixedly connected to the bottoms of the two L-shaped seats (21).
3. A tightening device for building pipe laying according to claim 2, characterized in that: Limiting guide rods (4) are fixedly connected to the front and rear sides of the right side of the first fixing plate (31). The right sides of the two limiting guide rods (4) pass through two internal threaded blocks (35) and are fixedly connected to the front and rear sides of the left side of the second fixing plate (32) respectively.
4. A tightening device for building pipe laying according to claim 3, characterized in that: The front and rear sides of the two internal threaded blocks (35) are provided with sliding holes (5) that cooperate with the limiting guide rod (4). The inner wall of the sliding hole (5) is slidably connected to the surface of the limiting guide rod (4).
5. A tightening device for building pipe laying according to claim 1, characterized in that: The L-shaped seat (21) has a first through hole (6) on one side for use with a tightening hydraulic cylinder (22). The piston rod surface of the tightening hydraulic cylinder (22) is slidably connected to the inner wall of the first through hole (6). The front and rear sides of the top of the L-shaped frame (25) are provided with second through holes (7) for use with a fixing cylinder (26). The piston rod surface of the fixing cylinder (26) is slidably connected to the inner wall of the second through hole (7).
6. A tightening device for building pipe laying according to claim 1, characterized in that: The front and rear sides of the bottom of the movable block (23) are fixedly connected to the limiting slider (8), and the front and rear sides of the top of the L-shaped seat (21) are provided with limiting grooves (9) that cooperate with the limiting slider (8). The side of the limiting slider (8) close to the inner wall of the limiting groove (9) is slidably connected to the inner wall of the limiting groove (9).
7. A tightening device for building pipe laying according to claim 1, characterized in that: The front side of the top of the movable base (1) is fixedly connected to a controller (10) that works in conjunction with the fixing and tightening mechanism (2) and the docking adjustment assembly (3). The controller (10) is electrically connected to the fixing and tightening mechanism (2) and the docking adjustment assembly (3).
8. A tightening device for building pipe laying according to claim 1, characterized in that: The four corners of the bottom of the mobile base (1) are provided with casters (11), and the casters (11) have brake locking pedals.