A fixed protection device for water conservancy pipelines

Abstract

The present invention relates to the field of pipeline support equipment, and particularly relates to a fixing and protecting device for a water conservancy pipeline, which comprises a support cylinder and a core rod. The core rod is coaxially and vertically slidably arranged inside the support cylinder. A positioning disk is rotatably arranged at the top end of the support cylinder, and the positioning disk is used for supporting the core rod to lift and move at the top end of the support cylinder. A synchronous ring is coaxially arranged on the top side of the positioning disk. The top end of the core rod is fixed with a mounting seat, and a lower clamp and an upper clamp which are combined to form a clamp structure are arranged on the top side of the mounting seat. By adjusting the positions of the guiding block and the supporting block through the synchronous ring, the present invention can quickly separate and engage the threads of the core rod and the support cylinder, realizing quick rough adjustment without tools; and can finely adjust the height of the core rod by using a screw pair, taking both efficiency and precision into account. The limiting frame can be disassembled and installed without tools, and the device can be quickly switched between a movable support and a fixed support, making it more convenient to use.

Description

Technical Field

[0001] The present invention relates to the field of pipeline support equipment, and particularly to a fixing and protecting device for water conservancy pipelines. Background Art

[0002] The function of the fixing and protecting support for water conservancy pipelines is to bear the weight of the pipeline itself and the conveyed medium inside, as well as to bear external loads such as overburden pressure, wind and snow loads, fix the pipeline at the designed position, prevent the pipeline from sagging, shifting or shaking due to its own weight, pressure or external force, and ensure the stability of the pipeline system. It also needs to play a role in adapting to environmental and external working condition changes, absorb the vibration energy generated by the impact of the flowing medium inside the pipeline and pressure fluctuations, reduce noise, and when the temperature changes, cooperate with the movable support to release the stress generated by the thermal expansion and contraction of the pipeline. In long-distance pipelines, a movable support needs to be installed every few fixed supports. The reason is that the temperature change of the medium in the water conservancy pipeline (such as seasonal temperature difference, change of the conveyed water temperature) will cause the pipeline to expand and contract thermally. The fixed support restricts the displacement of the pipeline. If the pipeline is continuously fixed over a long distance, the thermal deformation cannot be released, which may lead to problems such as pipeline bending and joint pulling off. The axial movable support allows the pipeline to freely expand and contract along the axial direction, controls the thermal deformation within a certain range, avoids stress concentration, and protects the safety of the pipeline system.

[0003] Currently, the structures of the fixed support and the movable support are quite different and not universal. During the pipeline laying process, the supports are fixedly installed in advance according to a set ratio. During the later use and maintenance process, if it is necessary to replace the two types of supports according to the actual situation, only the whole support can be removed and replaced, and it is difficult to adjust the supports fixed by the embedded installation method, which is inconvenient to use. At the same time, when adjusting the height of the existing supports, it is mostly achieved through cumbersome operations such as loosening and repositioning bolts, with low efficiency and difficulty in quickly adapting to different installation height requirements. Summary of the Invention

[0004] The purpose of the present invention is to provide a fixing and protecting device for water conservancy pipelines to solve the above problems. By adjusting the positions of the guiding block and the supporting block through the synchronous ring, it can quickly separate and engage the threads of the core rod and the support cylinder, realizing quick rough adjustment without tools; and it can use the thread pair to finely adjust the height of the core rod, taking both efficiency and precision into account. The limit frame can be disassembled and installed without tools, and the device can quickly switch between the movable support and the fixed support, making it more convenient to use, as described in detail below.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A fixed protection device for a water conservancy pipeline provided by the present invention includes a support cylinder and a core rod. The core rod is coaxially and vertically slidably arranged inside the support cylinder. A positioning disk is rotatably arranged at the top end of the support cylinder. The positioning disk is used to support the lifting and moving of the core rod at the top end of the support cylinder. A synchronous ring is coaxially arranged on the top side of the positioning disk. An installation seat is fixed at the top end of the core rod. A lower clamp and an upper clamp that are combined to form a clamp structure are arranged on the top side of the installation seat.

[0007] External threads are arranged on the outer circumference of the core rod. Multiple groups of guiding grooves distributed around the core rod are vertically penetrated in the middle of the positioning disk. Guide blocks are slidably arranged along the radial direction of the positioning disk in multiple groups of guiding grooves. A sliding rod that penetrates the positioning disk is fixed on the outer side of the guide block. A support block that fits the outer wall of the core rod in an arc shape is fixed on the bottom side of the guide block. Internal threads that are threadedly matched with the external threads are arranged on the inner side of the support block. A tightening spring that keeps the support block tightly pressed against the outer wall of the core rod is sleeved on the outer side of the sliding rod.

[0008] When using the above-mentioned fixed protection device for a water conservancy pipeline, the following steps are included:

[0009] a. When the fixed position at the bottom side of the support cylinder is determined and it is necessary to adjust the extending length of the core rod to support pipelines at different heights, keep the positioning disk stationary, and then rotate the synchronous ring. Use the limiting grooves of the synchronous ring to push multiple limiting screws to drive the guide blocks to expand outwards, so as to use the guiding grooves to support the outward movement of multiple groups of guide blocks and support blocks. Furthermore, quickly separate multiple groups of support blocks from the threaded connection of the core rod. At this time, the core rod is in a freely telescopic state. Lift the core rod upwards until the clamp moves to a suitable height, and then loosen the synchronous ring to use the tightening spring to push the guide block to reset. Keep multiple groups of guide blocks gathered synchronously through the synchronous ring, so as to use multiple groups of support blocks distributed around to press against the core rod again, thereby meshing the internal threads with the external threads again and completing the rapid adjustment action of the core rod height;

[0010] b. When the installation height of the water conservancy pipeline is determined and it is necessary to adjust the position height of the support cylinder, fix the upper clamp and the lower clamp tightly to the outside of the water conservancy pipeline through the locking screw, and then rotate the synchronous ring to separate the support block from the core rod. At this time, the supporting and suspending effect of the core rod on the positioning disk and the support cylinder disappears. The support cylinder quickly falls to the ground in the installation area under the action of gravity. Then loosen the synchronous ring, and through the reset of the guide block and the support block, realize the locking action of the relative position between the core rod and the support cylinder, so as to quickly adjust the length of the pipeline support to the support height corresponding to the installation area. Then drive the support block to rotate by rotating the positioning disk, and use the threaded cooperation between the support block and the outer wall of the core rod to finely adjust the length of the core rod extending out of the support cylinder, thereby improving the installation efficiency of the pipeline support;

[0011] c. When the pipe support is used as an axial movable support, by rotating the knob of the limit frame, the adjusting screw is driven to rotate by the knob, so that the two sets of stop pieces are driven by the adjusting screw to slide reversely in the chute, changing the distance between the two sets of stop pieces, so as to limit the sliding stroke of the slider on the bottom side of the lower clamp, so as to adjust its set slidable amount according to the installation requirements of different water conservancy pipes;

[0012] d. When the pipe support is used as a fixed support, rotate the knob to drive the adjusting screw to rotate, so as to drive the two sets of stop pieces to move away from each other by the adjusting screw until the two sets of stop pieces slide outward and press against the pressure ring at the end of the quick-release rod. At this time, continue to rotate the knob, drive the stop piece to push the pressure ring to drive the quick-release rod to translate outward, and then push the clamping section of the quick-release rod outward to disengage from the mounting seat, so as to quickly disassemble the connection between the limit frame and the mounting seat, lower the limit frame and pull it out of the mounting seat, then remove the locking screw and swap it up and down, and sequentially penetrate the locking screw through the fixing holes of the upper clamp, the lower clamp and the wing plate, so as to fix the upper clamp, the lower clamp and the wing plate, so as to lock the clamp to the mounting seat and use it as a fixed support.

[0013] Preferably, a side hole for the sliding rod to pass through is radially penetrated along the outer circumference of the positioning disk, a vertically extending limit screw is fixed on the top side of the guide block, and a plurality of limit grooves for the limit screw to pass through are arranged on the synchronous ring corresponding to the guide block.

[0014] Preferably, the limit groove includes an inner arc section and an outer arc section that communicate with each other. The inner arc section extends coaxially with the positioning disk, and the outer arc section extends obliquely outward and expands. A gasket is sleeved outside the limit screw above the synchronous ring, and a limit spring is arranged between the gasket and the screw head of the limit screw.

[0015] Preferably, an auxiliary groove with a wedge-shaped groove structure is arranged on the top side of the positioning disk, and an auxiliary block that extends into the auxiliary groove and fits the shape of the inner inclined surface of the auxiliary groove is fixed on the bottom side of the synchronous ring. The auxiliary block is used to jack up the synchronous ring upward during the rotation process of the synchronous ring.

[0016] Preferably, the mounting seat is a C-shaped frame body with an opening facing downward. A chute is vertically penetrated through the middle of the mounting seat. Wings extend outward from both sides of the top side of the mounting seat. A bearing plate is fixed at the bottom of the mounting seat. A sleeve sleeved on the outer side of the top end of the core rod is fixed at the bottom of the bearing plate, and a connecting bolt that passes through the sleeve is arranged at the top end of the core rod.

[0017] Preferably, a limit frame is detachably provided inside the mounting seat, and the limit frame includes an adjusting screw passing through the limit frame, and two groups of end plates are provided at both ends of the adjusting screw and vertically penetrate into the interior of the slide groove, and the adjusting screw and the end plate are rotatably engaged through thrust bearings, and two groups of stop plates are provided on the outer sides of both ends of the adjusting screw between the two groups of end plates, and the stop plates vertically penetrate into the interior of the slide groove and slidably engage with the slide groove.

[0018] Preferably, two sets of transmission threads with opposite rotation directions are provided at both ends of the adjusting screw, and the two sets of stop plates are respectively connected to the adjusting screw through the two sets of transmission threads. A knob is fixed to the outer end of the adjusting screw, and a quick-release rod is provided on the outer side of the end plate.

[0019] Preferably, the quick-release rod includes an arc-shaped bent rod structure and a clamping section that is clamped to the outside of the mounting seat, straight rod sections that transversely penetrate the end plate are fixed at both ends of the clamping section, and the straight rod section and the end plate are gap-matched, and a pressure ring is fixed at one end of the straight rod section extending into the interior of the mounting seat, and a quick-release spring is sleeved on the outside of the straight rod section between the pressure ring and the end plate, and fixing holes are vertically penetrated at the outer corners of the wing plate, and locking screws corresponding to the fixing holes are vertically penetrated on the top side of the upper clamp, and the locking screws are used to connect the upper clamp and the lower clamp.

[0020] Preferably, a vertical groove extending vertically is longitudinally passed through the front side of the support tube, a base is fixed to the bottom end of the support tube, and a rotating convex edge supporting the rotation of the positioning plate is fixed to the top end of the support tube, and a longitudinal rod passing longitudinally through the vertical groove is provided at the bottom end of the core rod, and the longitudinal rod is vertically slidably matched with the vertical groove.

[0021] Preferably, a screw sleeve supporting the longitudinal rod is fixed to the bottom end of the core rod, and the longitudinal rod and the screw sleeve are detachably connected via threads.

[0022] The beneficial effects are as follows: 1. The present invention can quickly expand and close the support block through the limit groove by rotating the synchronous ring, so as to realize the rapid separation and engagement of the threaded connection position between the core rod and the support tube, so as to quickly adjust the core rod to a free lifting state, and the height can be roughly adjusted without tools, so as to meet the rapid adaptation and adjustment of the overall height of the bracket during the laying and installation of the water conservancy pipeline;

[0023] 2. Use the synchronization ring to synchronize the expansion and gathering actions of multiple groups of support blocks, so as to ensure that the surrounding support blocks can achieve stable engagement with the core rod. After the rough adjustment, the positioning plate is rotated and the thread pair is used to fine-tune the core rod support height, taking into account both rapid adjustment and installation accuracy, solving the problem of cumbersome height adjustment of traditional brackets;

[0024] 3. A stop piece serving as a slip limiting component of the clamp is arranged inside the limit frame. By adjusting the distance between the two groups of stop pieces with a knob, the axial displacement stroke of the pipeline by the clamp can be set as required to meet the axial tension requirements for thermal expansion and contraction or vibration compensation of different water conservancy pipelines.

[0025] 4. The limit frame is detachably clamped and installed on the mounting seat through two groups of quick-release rods. It can drive the stop pieces to expand to both ends to tightly press the pressure ring, so as to push the quick-release rods to separate from the mounting seat. And a locking screw is set to fix the two groups of clamps to the mounting seat after being installed with the upper and lower positions swapped. It can quickly complete the switching between the movable support state and the fixed support state, has strong versatility, and can adjust the support state of the support according to the actual situation during the subsequent pipeline maintenance process, and is widely applied. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0027] Figure 1 is the front view structure diagram of the present invention;

[0028] Figure 2 is the three-dimensional structure schematic diagram of the present invention;

[0029] Figure 3 is the structure splitting schematic diagram of the present invention;

[0030] Figure 4 is the structure splitting schematic diagram of the support cylinder and the core rod of the present invention;

[0031] Figure 5 is the three-dimensional structure schematic diagram of the positioning disk of the present invention;

[0032] Figure 6 is the three-dimensional structure schematic diagram of the guide block of the present invention;

[0033] Figure 7 is the three-dimensional structure schematic diagram of the synchronous ring of the present invention;

[0034] Figure 8 is the three-dimensional structure schematic diagram of the mounting seat of the present invention;

[0035] Figure 9 is the structure splitting schematic diagram of the mounting seat of the present invention;

[0036] Figure 10 is the three-dimensional structure schematic diagram of the mounting seat in another direction of the present invention;

[0037] Figure 11 is a schematic diagram of the structural disassembly of the limit bracket of the present invention;

[0038] Figure 12 is a three-dimensional structural schematic diagram of the clamp of the present invention;

[0039] Figure 13 is a three-dimensional structural schematic diagram of another direction of the present invention;

[0040] Figure 14 is a right-view structural diagram of the present invention;

[0041] Figure 15 is a three-dimensional structural schematic diagram of the state of the movable bracket of the present invention.

[0042] The description of the reference numerals is as follows:

[0043] 1. Support cylinder; 101. Vertical groove; 102. Base; 103. Rotating flange; 2. Core rod; 201. External thread; 202. Longitudinal rod; 203. Connecting bolt; 3. Positioning disc; 301. Guide groove; 302. Side hole; 303. Auxiliary groove; 304. Guide block; 305. Support block; 305a. Internal thread; 306. Slide rod; 307. Tightening spring; 308. Limit screw; 308a. Limit spring; 309. Gasket; 4. Synchronous ring; 401. Limit groove; 401a. Inner arc section; 401b. Outer arc section; 402. Auxiliary block; 5. Mounting seat; 501. Slide groove; 502. Wing plate; 502a. Fixed hole; 503. Bearing plate; 503a. Sleeve; 6. Limit bracket; 601. Adjusting screw; 601a. Transmission thread; 601b. Knob; 602. End plate; 603. Stop piece; 604. Quick-release rod; 604a. Engaging section; 604b. Straight rod section; 605. Pressure ring; 606. Quick-release spring; 7. Lower clamp; 701. Slide block; 8. Upper clamp; 9. Locking screw. Detailed implementation manners

[0044] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other implementation manners obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts fall within the scope protected by the present invention.

[0045] Refer to Figures 1 - 15As shown in the figure, the present invention provides a fixed protection device for a water conservancy pipeline, which includes a support cylinder 1 and a core rod 2. The core rod 2 is coaxially and vertically slidably arranged inside the support cylinder 1. A positioning disc 3 is rotatably arranged at the top end of the support cylinder 1. The positioning disc 3 is used to support the core rod 2 to move up and down at the top end of the support cylinder 1. A synchronous ring 4 is coaxially arranged on the top side of the positioning disc 3. A mounting seat 5 is fixed at the top end of the core rod 2. A lower clamp 7 and an upper clamp 8 that are combined to form a clamp structure are arranged on the top side of the mounting seat 5. The clamp structure is used to tightly support the water conservancy pipeline to be fixed;

[0046] An external thread 201 is arranged on the outer circumference of the core rod 2. A plurality of guiding grooves 301 distributed around the core rod 2 are vertically penetrated in the middle of the positioning disc 3. A guiding block 304 is slidably arranged along the radial direction of the positioning disc 3 in each of the plurality of guiding grooves 301. A sliding rod 306 that penetrates through the positioning disc 3 is fixed on the outer side of the guiding block 304. A side hole 302 for accommodating the sliding rod 306 to penetrate through is radially penetrated in the outer circumference of the positioning disc 3. The side hole 302 and the sliding rod 306 are in clearance fit. A supporting block 305 with an arc-shaped outer wall that fits the core rod 2 is fixed on the bottom side of the guiding block 304. An internal thread 305a that is in threaded fit with the external thread 201 is arranged on the inner side of the supporting block 305. A tightening spring 307 that keeps the supporting block 305 tightly pressed against the outer wall of the core rod 2 is sleeved on the outer side of the sliding rod 306, ensuring that the supporting block 305 can be in threaded fit with the core rod 2, so as to drive the core rod 2 to move up and down by rotating the positioning disc 3 to drive the supporting block 305 to rotate.

[0047] As an optional embodiment, a vertically extending limit screw 308 is fixed to the top side of the guide block 304, and a plurality of limit grooves 401 for accommodating the limit screws 308 are provided on the synchronizer ring 4 corresponding to the guide block 304. Specifically, the limit groove 401 includes an inner arc segment 401a and an outer arc segment 401b which are connected to each other, and the inner arc segment 401a extends coaxially with the positioning plate 3. When the limit screw 308 is located in the inner arc segment 401a, it is ensured that the inner arc segment 401a will not push the limit screw 308 outward to leave a redundant amount for the rotation action of the synchronizer ring 4, and the outer arc segment 401b expands and extends outwardly. When the step ring 4 rotates until the limit screw 308 extends into the outer arc segment 401b, the outer arc segment 401b that expands outward pushes the limit screw 308 to drive the guide block 304 and the support block 305 to slide outward synchronously, thereby synchronously releasing the supporting and locking effect of the multiple groups of support blocks 305 on the core rod 2, and a gasket 309 is sleeved on the outer side of the limit screw 308 above the synchronization ring 4, and a limit spring 308a is arranged between the gasket 309 and the nail head of the limit screw 308, an auxiliary groove 303 of a wedge-shaped groove structure is arranged on the top side of the positioning plate 3, and a member extending into the auxiliary groove 303 and fitting the auxiliary groove 30 is fixed on the bottom side of the synchronization ring 4 The auxiliary block 402 is provided with an inner bevel shape. The auxiliary block 402 is used to push the synchronizer ring 4 upward during the rotation of the synchronizer ring 4. In this way, the auxiliary block 402 cooperates with the auxiliary groove 303 as a rotation insurance mechanism for the synchronizer ring 4. When the synchronizer ring 4 needs to be rotated, the auxiliary block 402 will push the synchronizer ring 4 out of the auxiliary groove 303. When the auxiliary block 402 is completely separated from the auxiliary groove 303, the limit screw 308 rotates to the connection point between the outer arc segment 401b and the inner arc segment 401a. At the same time, the synchronizer ring 4 drives the gasket 309 to compress the limit spring 308a upward. In this way, the synchronizer ring 4 is rotated. When the synchronous ring 4 is rotated, it is necessary to first drive the auxiliary block 402 on the bottom side of the synchronous ring 4 to disengage from the auxiliary groove 303, and at the same time compress the limit spring 308a to realize the unlocking action of the synchronous ring 4 rotation, so as to prevent the synchronous ring 4 from rotating by itself due to external factors such as vibration. When the synchronous ring 4 is not rotated by external force, it can keep the limit screw 308 always located in the inner arc segment 401a of the synchronous ring 4, thereby improving the position stability of the guide block 304 and the support block 305, thereby increasing the height stability of the core rod 2, preventing the core rod 2 from pushing the support block 305 outward and separating after receiving the downward pressure of the upper pipeline, thereby increasing the structural strength;

[0048] The mounting seat 5 is a C-shaped frame with an opening facing downward, a slide groove 501 is vertically penetrated in the middle of the mounting seat 5, both sides of the top side of the mounting seat 5 extend outward to form wing plates 502, and a pressure plate 503 is fixed to the bottom of the mounting seat 5, a sleeve 503a sleeved to the outside of the top of the core rod 2 is fixed to the bottom of the pressure plate 503, and a connecting bolt 203 passing through the sleeve 503a is provided at the top of the core rod 2. In this way, the top of the core rod 2 is detachably connected to the mounting seat 5, which is convenient for equipment production and subsequent assembly and use;

[0049] A limit frame 6 is detachably provided inside the mounting seat 5. The limit frame 6 serves as a travel limiting component for the lower clamp 7 to slide in the slide groove 501. The limit frame 6 includes an adjusting screw 601 passing through the limit frame 6. Two sets of end plates 602 are provided at both ends of the adjusting screw 601 to vertically penetrate into the slide groove 501. The adjusting screw 601 and the end plate 602 are rotationally matched through a thrust bearing to improve the rotation stability of the connection between the adjusting screw 601 and the end plate 602. The adjusting screw 601 between the two sets of end plates 602 is Two sets of stoppers 603 are arranged on the outer sides of both ends of the adjusting screw 601. The stoppers 603 vertically penetrate into the interior of the slide groove 501 and slide in cooperation with the slide groove 501. In addition, two sets of transmission threads 601a with opposite rotation directions are arranged on both ends of the adjusting screw 601. The two sets of stoppers 603 are respectively connected to the adjusting screw 601 through the two sets of transmission threads 601a. Thus, when the adjusting screw 601 is rotated, the two sets of stoppers 603 can be driven to rotate in opposite directions, thereby realizing the spacing adjustment function of the two sets of stoppers 603.

[0050] A knob 601b for easy grip is fixed to the outer end of the adjusting screw 601, and a quick-release rod 604 is arranged on the outer side of the end plate 602. The quick-release rod 604 includes an arc-shaped bent rod structure and is clamped to a clamping section 604a on the outer side of the mounting seat 5. Straight rod sections 604b that transversely penetrate the end plate 602 are fixed at both ends of the clamping section 604a. The straight rod section 604b and the end plate 602 are clearance-matched. A pressure ring 605 is fixed to one end of the straight rod section 604b extending into the interior of the mounting seat 5. A quick-release spring 606 is sleeved on the outer side of the straight rod section 604b between the pressure ring 605 and the end plate 602. The quick-release spring 606 presses the pressure ring 605 to clamp the quick-release rod 604 to the outer side of the mounting seat 5. When the limit frame 6 needs to be removed later, the knob 601b is rotated to release the two sets of stoppers 60 3, the spacing is adjusted to the expanded state until the stopper 603 expands outward to press against the pressure ring 605, and the stopper 603 is used to push the pressure ring 605 to compress the quick release spring 606, so as to push the quick release rod 604 outward to separate from the mounting seat 5, and complete the tool-free quick disassembly of the locking position of the limit frame 6 and the mounting seat 5. The outer corner of the wing plate 502 is vertically penetrated with a fixing hole 502a, and the top side of the upper clamp 8 is vertically penetrated with a locking screw 9 distributed corresponding to the fixing hole 502a. The locking screw 9 is used to connect the upper clamp 8 and the lower clamp 7. At the same time, when the limit frame 6 is removed, the locking screw 9 is swapped up and down, and the locking screw 9 is passed through the fixing hole 502a of the wing plate 502, and the nut is fixed to the bottom side of the wing plate 502, so as to adjust the movable bracket state to the fixed bracket state (such as Figure 15 shown);

[0051] A vertical slot 101 extending longitudinally is formed in the front side of the support cylinder 1. A base 102 is fixed to the bottom end of the support cylinder 1, and a rotating flange 103 for supporting the rotation of the positioning disk 3 is fixed to the top end of the support cylinder 1. The rotating flange 103 and the positioning disk 3 are rotationally matched through a thrust bearing. A longitudinal rod 202 is provided at the bottom end of the core rod 2 and extends longitudinally through the vertical slot 101. The longitudinal rod 202 is in vertical sliding fit with the vertical slot 101. A nut sleeve for supporting the longitudinal rod 202 is fixed to the bottom end of the core rod 2. The longitudinal rod 202 and the nut sleeve are detachably connected by threads.

[0052] With the above structure, when in use, it includes the following steps:

[0053] a. When it is necessary to adjust the extending length of the core rod 2 to support pipelines of different heights under the condition that the fixed position at the bottom side of the support cylinder 1 is determined, keep the positioning disk 3 stationary, and then rotate the synchronous ring 4. Use the limit slot 401 of the synchronous ring 4 to push a plurality of limit screws 308 to drive the guide blocks 304 to expand outwards, so as to use the guide slots 301 to support the outward movement of multiple groups of guide blocks 304 and support blocks 305, and then quickly separate the multiple groups of support blocks 305 from the threaded connection of the core rod 2. At this time, the core rod 2 is in a freely telescopic state. Lift the core rod 2 upwards until the clamp moves to a suitable height, and then loosen the synchronous ring 4 to use the tension spring 307 to push the guide block 304 to reset. Keep multiple groups of guide blocks 304 synchronously gathered through the synchronous ring 4, so as to use multiple groups of circumferentially distributed support blocks 305 to tightly press against the core rod 2 again, thereby meshing the internal thread 305a and the external thread 201 again to complete the rapid adjustment action of the height of the core rod 2;

[0054] b. When the installation height of the water conservancy pipeline is determined and it is necessary to adjust the position height of the support cylinder 1, fix the upper clamp 8 and the lower clamp 7 tightly to the outside of the water conservancy pipeline through the locking screw 9, and then rotate the synchronous ring 4 to separate the support block 305 from the core rod 2. At this time, the supporting and suspending effect of the core rod 2 on the positioning disk 3 and the support cylinder 1 disappears, and the support cylinder 1 quickly falls to the ground in the installation area under the action of gravity. Then loosen the synchronous ring 4, and through the reset of the guide block 304 and the support block 305, the locking action of the relative position between the core rod 2 and the support cylinder 1 is realized, so as to quickly adjust the length of the pipeline support to the support height corresponding to the installation area. Then drive the support block 305 to rotate by rotating the positioning disk 3, and use the threaded cooperation between the support block 305 and the outer wall of the core rod 2 to finely adjust the length of the core rod 2 extending out of the support cylinder 1, thereby improving the installation efficiency of the pipeline support;

[0055] c. When the pipe support is used as an axial movable support, by rotating the knob 601b of the limit frame 6, the adjusting screw 601 is driven to rotate by the knob 601b, so that the two sets of stop pieces 603 are driven by the adjusting screw 601 to slide reversely in the chute 501, changing the distance between the two sets of stop pieces 603, so as to limit the sliding stroke of the slider 701 on the bottom side of the lower clamp 7 by the stop pieces 603, so as to adjust its set slidable amount according to the installation requirements of different water conservancy pipes;

[0056] d. When the pipe support is used as a fixed support, rotate the knob 601b to drive the adjusting screw 601 to rotate, so as to drive the two sets of stop pieces 603 to move away from each other by the adjusting screw 601 until the two sets of stop pieces 603 slide outward and press against the pressure ring 605 at the end of the quick-release rod 604. At this time, continue to rotate the knob 601b, drive the stop piece 603 to push the pressure ring 605 to drive the quick-release rod 604 to translate outward, and then push the engaging section 604a of the quick-release rod 604 outward to disengage from the mounting seat 5, so as to quickly disassemble the connection between the limit frame 6 and the mounting seat 5, and move the limit frame 6 downward and extract it from the mounting seat 5. Then remove the locking screw 9 and swap it up and down, and pass the locking screw 9 through the fixing holes 502a of the upper clamp 8, the lower clamp 7 and the wing plate 502 in turn, so as to fix the upper clamp 8, the lower clamp 7 and the wing plate 502, so as to lock the clamp to the mounting seat 5 and use it as a fixed support.

[0057] In the present invention, by rotating the synchronous ring 4, the support blocks 305 can be quickly expanded and retracted through the limit slots 401, so as to quickly separate and engage the threaded connection position between the core rod 2 and the support cylinder 1, so as to quickly adjust the core rod 2 to the free lifting and moving state, and the height can be roughly adjusted without tools, so as to meet the quick adaptation adjustment of the overall height of the support during the laying and installation of water conservancy pipes;

[0058] The expansion and gathering actions of multiple groups of support blocks 305 are synchronized by the synchronous ring 4, so as to ensure that the circumferentially distributed support blocks 305 can be stably engaged with the core rod 2. After rough adjustment, by rotating the positioning disk 3, the fine adjustment action of the support height of the core rod 2 is carried out by the thread pair, taking into account both quick adjustment and installation accuracy, and solving the problem of cumbersome height adjustment of the traditional support;

[0059] The stop pieces 603 serving as the clamp sliding limiting components are arranged in the limit frame 6. By adjusting the distance between the two sets of stop pieces 603 through the knob 601b, the axial displacement stroke of the clamp for the pipeline can be set as required, meeting the axial tension requirements of different water conservancy pipes for thermal expansion and contraction or vibration compensation;

[0060] The limit frame 6 is detachably clamped and installed on the mounting seat 5 through two groups of quick-release rods 604. It can drive the stop piece 603 to expand to both ends to tightly press the pressure ring 605, so as to push the quick-release rod 604 to separate from the mounting seat 5. And a locking screw 9 is provided, which can fix the two groups of clamps to the mounting seat 5 after being installed with up-and-down swapping. It can quickly complete the switching between the movable bracket state and the fixed bracket state, has strong versatility, and can adjust the bracket support state according to the actual situation during the subsequent pipeline maintenance process, and is widely used.

[0061] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A fixed protection device for a water conservancy pipeline, characterized in that: It includes a support cylinder (1) and a core rod (2). The core rod (2) is coaxially and vertically slidably arranged inside the support cylinder (1). A positioning disk (3) is rotatably arranged at the top end of the support cylinder (1). The positioning disk (3) is used to support the core rod (2) to lift and move at the top end of the support cylinder (1). A synchronous ring (4) is coaxially arranged on the top side of the positioning disk (3). A mounting seat (5) is fixed at the top end of the core rod (2). A lower clamp (7) and an upper clamp (8) that are combined to form a clamp structure are arranged on the top side of the mounting seat (5). External threads (201) are arranged on the outer circumference of the core rod (2). Multiple groups of guiding grooves (301) that are distributed around the core rod (2) and vertically penetrate through the middle of the positioning disk (3) are provided. Guide blocks (304) are slidably arranged along the radial direction of the positioning disk (3) in multiple groups of guiding grooves (301). A sliding rod (306) that penetrates out of the positioning disk (3) is fixed on the outer side of the guide block (304). A support block (305) that fits the outer wall of the core rod (2) in an arc shape is fixed on the bottom side of the guide block (304). Internal threads (305a) that are in threaded fit with the external threads (201) are arranged on the inner side of the support block (305). A tightening spring (307) that keeps the support block (305) tightly pressed against the outer wall of the core rod (2) is sleeved on the outer side of the sliding rod (306). Edge holes (302) for the sliding rod (306) to penetrate out are radially penetrated through the outer circumference of the positioning disk (3). A limiting screw (308) that extends vertically is fixed on the top side of the guide block (304). Multiple groups of limiting grooves (401) for the limiting screw (308) to penetrate out are arranged on the synchronous ring (4) corresponding to the guide blocks (304). The limiting groove (401) includes an inner arc section (401a) and an outer arc section (401b) that are communicated with each other. The inner arc section (401a) extends coaxially with the positioning disk (3), and the outer arc section (401b) extends outward and obliquely. When the limiting screw (308) is located in the inner arc section (401a), it is ensured that the inner arc section (401a) will not push the limiting screw (308) outward. When the synchronous ring (4) rotates until the limiting screw (308) extends into the outer arc section (401b), the outward-expanding outer arc section (401b) pushes the limiting screw (308) to drive the guide block (304) and the support block (305) to slide outward synchronously. A gasket (309) is sleeved on the outer side of the limiting screw (308) above the synchronous ring (4). A limiting spring (308a) is arranged between the gasket (309) and the head of the limiting screw (308). An auxiliary groove (303) with a wedge-shaped groove structure is arranged on the top side of the positioning disk (3). An auxiliary block (402) that extends into the auxiliary groove (303) and fits the inner inclined surface shape of the auxiliary groove (303) is fixed on the bottom side of the synchronous ring (4). The auxiliary block (402) is used to jack up the synchronous ring (4) during the rotation of the synchronous ring (4). When the auxiliary block (402) completely disengages from the auxiliary groove (303), the limiting screw (308) rotates to the connection point between the outer arc section (401b) and the inner arc section (401a).

2. The fixed protection device for a water conservancy pipeline according to claim 1, wherein: The mounting base (5) is a C-shaped frame with an opening facing downward. A chute (501) runs vertically through the middle of the mounting base (5). Wings (502) extend outward from both sides of the top side of the mounting base (5). A bearing plate (503) is fixed to the bottom of the mounting base (5). A sleeve (503a) that sleeves the outer side of the top end of the core rod (2) is fixed to the bottom of the bearing plate (503). A connecting bolt (203) that passes through the sleeve (503a) is provided at the top end of the core rod (2).

3. The fixed protection device for a water conservancy pipeline according to claim 2, wherein: A limiting frame (6) is detachably arranged inside the mounting base (5). The limiting frame (6) includes an adjusting screw rod (601) that passes through the limiting frame (6). Two end plates (602) that vertically penetrate into the chute (501) are arranged at both ends of the adjusting screw rod (601). The adjusting screw rod (601) is rotationally matched with the end plates (602) through thrust bearings. Two stop pieces (603) are arranged on the outer sides of both ends of the adjusting screw rod (601) between the two end plates (602). The stop pieces (603) vertically penetrate into the chute (501) and are slidably matched with the chute (501).

4. The fixed protection device for a water conservancy pipeline according to claim 3, wherein: Two driving threads (601a) with opposite helix directions are arranged at both ends of the adjusting screw rod (601). The two stop pieces (603) are respectively drivingly connected to the adjusting screw rod (601) through the two driving threads (601a). A knob (601b) is fixed to the outer end of the adjusting screw rod (601). A quick-release rod (604) is arranged on the outer side of the end plate (602).

5. The fixed protection device for a water conservancy pipeline according to claim 4, wherein: The quick-release rod (604) includes an arc-shaped bent rod structure and a clamping section (604a) that is clamped to the outer side of the mounting base (5). Straight rod sections (604b) that horizontally penetrate through the end plate (602) are fixed to both ends of the clamping section (604a). The straight rod sections (604b) are in clearance fit with the end plate (602). A pressure ring (605) is fixed to one end of the straight rod section (604b) that extends into the mounting base (5). A quick-release spring (606) is sleeved on the outer side of the straight rod section (604b) between the pressure ring (605) and the end plate (602). A fixing hole (502a) vertically penetrates through the outer side corner of the wing (502). A locking screw rod (9) that is vertically penetrated through the top side of the upper clamp (8) and is distributed corresponding to the fixing hole (502a) is used to connect the upper clamp (8) and the lower clamp (7).

6. The fixed protection device for a water conservancy pipeline according to claim 1, wherein: A vertically extending vertical groove (101) runs longitudinally through the front side of the support cylinder (1). A base (102) is fixed to the bottom end of the support cylinder (1). A rotating flange (103) for supporting the positioning disc (3) to rotate is fixed to the top end of the support cylinder (1). A longitudinal rod (202) that longitudinally penetrates through the vertical groove (101) is arranged at the bottom end of the core rod (2). The longitudinal rod (202) is vertically slidably matched with the vertical groove (101).

7. The fixed protection device for a water conservancy pipeline according to claim 6, characterized in that: A screw sleeve for supporting the longitudinal rod (202) is fixed to the bottom end of the core rod (2). The longitudinal rod (202) is detachably connected to the screw sleeve through threads.

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