Pressure test back supporting device for large-diameter water supply and drainage pipeline
By designing a pressure-test back support device for large-diameter water supply and drainage pipes, the fixed plate is retracted by rack meshing and gear rotation, the problems of large amount of concrete piers, high cost and cumbersome construction are solved, and the efficient and material-stained support effect is achieved.
Patent Information
- Application Number
- CN202420497448.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-14
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-03-14
AI Technical Summary
In the prior art, concrete piers used for large-diameter water supply and drainage pipes have large usage, high cost, cumbersome construction, and need to be removed after the pressure test is completed, resulting in troublesome demolition work and waste of materials.
A pressure test back support device is designed, including a base plate, a connecting block, a placing box, a fixing plate, a moving groove, a gear and a motor. Through rack meshing and gear rotation, the fixing plate is driven to retract, so as to achieve fixing and supporting the water pipe.
The device can effectively fix and support large-diameter water supply and drainage pipes, reducing material use and construction complexity, and avoiding the difficulty of removing concrete piers and material waste.
Smart Images
Figure CN222561415U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of drainage pipes, in particular to a pressure test back support device for large-diameter water supply and drainage pipes. Background Art
[0002] For water supply and drainage pipe supports, a pressure test section of no more than 1 kilometer is typically used. During the pressure test, both ends of the pipe section are sealed with pipe plugs, and then water is flushed to apply pressure. The plugs are subjected to the external thrust generated by the pressurized water within the pipe. To prevent the joints from loosening, supports are installed to transfer the external thrust to the soil. This external thrust is then balanced by a support system composed of back supports and the surrounding soil.
[0003] Currently, the back supports commonly used in engineering projects are generally made of concrete, called piers. However, these piers have the following limitations: for supporting large-diameter water supply and drainage pipes, concrete piers are large in quantity, expensive, and complex to construct. They need to be removed after pressure testing, and the large size of concrete piers for large-diameter pipes makes removal cumbersome and wasteful. Utility Model Content
[0004] (1) Technical problems solved
[0005] To address the shortcomings of existing technologies, this new utility model provides a pressure-testing back support device for large-diameter water supply and drainage pipes. This device solves the problem of back supports commonly used in current projects, which are generally made of concrete, known as buttresses. However, this device has the following limitations: for large-diameter water supply and drainage pipes, concrete buttresses are large in quantity, expensive, and complex to construct. They need to be removed after the pressure test is completed, and the large size of concrete buttresses for large-diameter pipes not only makes removal cumbersome but also wastes materials.
[0006] (2) Technical solution
[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a pressure test back support device for large-diameter water supply and drainage pipes, comprising a bottom plate, the upper end of the bottom plate is fixedly connected to a connecting block, the upper end of the connecting block is fixedly connected to a placement box, the placement box is a hollow box body with an open front end, the interior of the placement box is slidably connected to four fixed plates, the interior of the placement box is provided with four movable slots, the rear ends of the four fixed plates are fixedly connected to connecting rods, the rear end of the placement box is rotatably connected to a gear, the rear end of the placement box is fixedly connected to a motor, the output end of the motor is fixedly connected to the center end of the gear, the rear end of the placement box is slidably connected to four racks, the four racks are meshed with the gears, the rear ends of the four connecting rods are respectively fixedly connected to the side ends of the four racks, the two horizontal racks and the two longitudinal racks are staggered front and back, and the four movable slots are respectively matched with the four fixed plates.
[0008] Preferably, the rear end of the placement box is provided with two limiting grooves, the interiors of the two limiting grooves are slidably connected with sliders, and the rear ends of the two sliders are fixedly connected to the front ends of the two horizontal racks respectively.
[0009] Preferably, the rear end of the placement box is fixedly connected to two connecting plates, the close ends of the two connecting plates are connected to telescopic rods, and the close ends of the two telescopic rods are respectively connected to the far ends of two racks located in the longitudinal direction.
[0010] Preferably, four slots are provided at the upper end of the base plate.
[0011] Preferably, a buffer pad is provided inside the connection block, and the buffer pad is connected to the circumferential surface of the placement box.
[0012] Preferably, anti-slip strips are installed at adjacent ends of the four fixing plates.
[0013] Beneficial effects
[0014] This new utility model provides a pressure test back support device for large-diameter water supply and drainage pipes. It has the following beneficial effects:
[0015] When it is necessary to fix the water pipe placed inside the placement box, the rack is activated to make the gear at the rear end of the placement box rotate. Since the four racks are meshed with the gears and the positions of the two horizontal racks and the two vertical racks are different, the four racks can be moved at the same time, which can drive the four fixing plates to retract inward at the same time, and the water pipe placed inside the placement box can be fixed. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the practical structure of the new model;
[0017] Figure 2 This is the second practical stereogram of the new invention;
[0018] Figure 3 This is the first practical cross-sectional view of the new invention.
[0019] In the figure: 1. Base plate; 2. Connecting block; 3. Placement box; 4. Fixed plate; 5. Moving slot; 6. Connecting rod; 7. Card slot; 8. Gear; 9. Rack; 10. Limiting slot; 11. Connecting plate; 12. Telescopic rod; 13. Anti-slip strip; 14. Motor. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the practical embodiments of the present invention to clearly and completely describe the technical solutions in the practical embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.
[0021] See also Figure 1-3 The present invention provides a technical solution: a pressure test back support device for large-diameter water supply and drainage pipes, including a bottom plate 1, the upper end of the bottom plate 1 is fixedly connected to a connecting block 2, the upper end of the connecting block 2 is fixedly connected to a placement box 3, the placement box 3 is a hollow box with an open front end, the interior of the placement box 3 is slidably connected to four fixed plates 4, the interior of the placement box 3 is provided with four movable slots 5, the rear ends of the four fixed plates 4 are fixedly connected to a connecting rod 6, the rear end of the placement box 3 is rotatably connected to a gear 8, the rear end of the placement box 3 is fixedly connected to a motor 14, the output end of the motor 14 is fixedly connected to the center end of the gear 8, the rear end of the placement box 3 is slidably connected to four racks 9, the four racks 9 are meshed with the gear 8, the rear ends of the four connecting rods 6 are respectively fixedly connected to the side ends of the four racks 9, the two horizontal racks 9 and the two longitudinal racks 9 are staggered front and back, and the four movable slots 5 are respectively matched with the four fixed plates 4.
[0022] During operation, when it is necessary to fix the water pipe placed inside the placement box 3, the rack 9 is started to make the gear 8 rotate at the rear end of the placement box 3. Since the four racks 9 are meshed with the gear 8 and the positions of the two horizontal racks 9 and the two vertical racks 9 are different, the four racks 9 can be moved at the same time, and the four fixing plates 4 can be driven to retract inward at the same time. At this time, the water pipe placed inside the placement box 3 can be fixed, and the thickness of the gear 8 can support the four racks 9 to mesh with the surface of the gear 8 at the same time.
[0023] See also Figure 1-3 The present invention provides a technical solution: two limit grooves 10 are provided at the rear end of the placement box 3, and sliders are slidably connected to the inside of the two limit grooves 10, and the rear ends of the two sliders are fixedly connected to the front ends of the two horizontal racks 9 respectively.
[0024] During operation, the fixed connection between the slider and the two horizontal racks 9 can limit the movement of the two horizontal racks 9.
[0025] See also Figure 1-3The present invention provides a technical solution: the rear end of the placement box 3 is fixedly connected to two connecting plates 11, the close ends of the two connecting plates 11 are connected to telescopic rods 12, and the close ends of the two telescopic rods 12 are respectively connected to the far ends of the two racks 9 located in the longitudinal direction.
[0026] During operation, when the two longitudinal racks 9 move, the telescopic rod 12 connected thereto can limit the movement of the two racks 9 .
[0027] See also Figure 1-3 The present invention provides a technical solution: four card slots 7 are provided at the upper end of the bottom plate 1 .
[0028] During operation, the base plate 1 can be fixed by the engagement of the slots 7 and the screw nut.
[0029] See also Figure 1-3 The present invention provides a technical solution: a buffer pad is provided inside the connecting block 2, and the buffer pad is connected to the circumferential surface of the placement box 3.
[0030] During operation, the placement box 3 plays a protective role when the placement box 3 is in operation.
[0031] See also Figure 1-3 The present invention provides a technical solution: anti-slip strips 13 are installed at the adjacent ends of the four fixing plates 4.
[0032] During operation, the anti-slip strips 13 can make the fixing plate 4 more stable during fixation.
[0033] In summary, when it is necessary to fix the water pipe placed inside the placement box 3, the rack 9 is started to make the gear 8 rotate at the rear end of the placement box 3, and since the four racks 9 are meshed with the gear 8 and the positions of the two horizontal racks 9 and the two vertical racks 9 are different, the four racks 9 can be moved at the same time, and the four fixed plates 4 can be driven to retract inward at the same time, and the water pipe placed inside the placement box 3 can be fixed.
[0034] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.
[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A pressure test back support device for large-diameter water supply and drainage pipes, comprising a bottom plate (1), characterized in that: The upper end of the bottom plate (1) is fixedly connected to a connecting block (2), and the upper end of the connecting block (2) is fixedly connected to a placement box (3). The placement box (3) is a hollow box body with an open front end. Four fixed plates (4) are slidably connected inside the placement box (3). Four movable grooves (5) are provided inside the placement box (3). The rear ends of the four fixed plates (4) are fixedly connected to connecting rods (6). The rear end of the placement box (3) is rotatably connected to a gear (8). The end is fixedly connected with a motor (14), the output end of the motor (14) is fixedly connected with the center end of the gear (8), the rear end of the placement box (3) is slidably connected with four racks (9), the four racks (9) are meshedly connected with the gear (8), the rear ends of the four connecting rods (6) are respectively fixedly connected with the side ends of the four racks (9), the two transverse racks (9) and the two longitudinal racks (9) are staggered front and back, and the four movable grooves (5) are respectively matched with the four fixed plates (4).
2. A pressure test back support device for large-diameter water supply and drainage pipes according to claim 1, characterized in that: The rear end of the placement box (3) is provided with two limit grooves (10), the interiors of the two limit grooves (10) are slidably connected with sliders, and the rear ends of the two sliders are respectively fixedly connected to the front ends of two horizontal racks (9).
3. The pressure test back support device for large-diameter water supply and drainage pipes according to claim 1, characterized in that: The rear end of the placement box (3) is fixedly connected to two connecting plates (11), the close ends of the two connecting plates (11) are connected to telescopic rods (12), and the close ends of the two telescopic rods (12) are respectively connected to the far ends of two racks (9) located in the longitudinal direction.
4. The pressure test back support device for large-diameter water supply and drainage pipes according to claim 1, characterized in that: Four slots (7) are provided at the upper end of the bottom plate (1).
5. The pressure test back support device for large-diameter water supply and drainage pipes according to claim 1, characterized in that: A buffer pad is arranged inside the connection block (2), and the buffer pad is connected to the circumferential surface of the placement box (3).
6. A pressure test back support device for large-diameter water supply and drainage pipes according to claim 1, characterized in that: Anti-slip strips (13) are installed at adjacent ends of the four fixing plates (4).