Connecting, protecting and fastening structure of prefabricated calandria

Abstract

The connection protection fastening structure comprises a clamping plate assembly used for wrapping and protecting the prefabricated calandria, and the side of the clamping plate assembly is provided with an inserting plate, an inserting groove, a communicating cylinder and a communicating groove; the device further comprises an inserting rod, a movable rod, a limiting plate and an abutting plate, the abutting plate penetrates into the communicating cylinder to be matched with the prefabricated calandria in an abutting mode, a sliding frame plate is fixedly connected into the inserting rod, a rotating piece sliding in the sliding frame plate is rotationally connected to the limiting plate, and an elastic piece is arranged between the abutting plate and the limiting plate. The side clamping plates and the middle clamping plates are located at the end opening splicing ends of the prefabricated calandria, segmented assembly and multi-segment assembly can be conducted in advance, the construction time is shortened, manpower is saved, and efficiency is improved; the appearance of the clamping plate assembly is designed to be of a multi-diamond composite structure with the inner circle and the outer square, pipe pillows are not needed for fixing during installation and construction, the workload is greatly reduced, pipe plugs, pipe pillows and concrete encapsulation are not needed, materials and water are saved, and environmental pollution of a construction site is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of connection protection structures for precast pipes, and specifically to a connection protection fastening structure for precast pipes. Background Art

[0002] The buried high-strength compressive polymer resin diamond-shaped protective casing (abbreviation: HDMP pipe) is a new type of pipe developed by combining a new type of high-impact-resistant polymer material with the characteristics of structural mechanics. This pipe has strong compressive and heat dissipation properties, and its excellent physical properties can fully meet the requirements of replacing steel with plastic. It is mainly used for the buried protection of cables (high-voltage and low-voltage) and optical cables in the municipal power and communication fields.

[0003] The HDMP pipe is environmentally friendly, low-carbon, lightweight, has good sealing performance, fast construction, and convenient maintenance. In the power and communication fields, the buried protection of cables is particularly important.

[0004] When installing the existing precast pipes, it is necessary to pour concrete on-site or rely on pipe pillows for fixation, and segmented assembly cannot be achieved, resulting in an extended construction period.

[0005] Therefore, we propose a connection protection fastening structure for precast pipes. Summary of the Invention

[0006] The purpose of the present invention is to provide a connection protection fastening structure for precast pipes to solve the problems raised in the above background art.

[0007] To achieve the above purpose, the present invention provides a connection protection fastening structure for precast pipes, including a clamping plate assembly for wrapping and protecting the precast pipes. The clamping plate assembly includes side clamping plates and a middle clamping plate. One side of the clamping plate assembly is provided with a plug-in plate, and the other side is provided with plug-in slots at staggered positions. The plug-in plate is in plug-in fit with the plug-in slots. A plurality of communicating cylinders are provided on the clamping plate assembly, and communicating grooves corresponding to the communicating cylinders are opened on the clamping plate assembly.

[0008] It further includes: a plug-in rod inserted into a plurality of communicating cylinders. A movable rod is inserted into the plug-in rod. A limiting plate and a pressing plate that are in pressing fit with the communicating cylinders are movably inserted on the movable rod. The pressing plate penetrates into the communicating cylinder and is in pressing fit with the precast pipe. A sliding frame plate is fixedly connected inside the plug-in rod. A rotating member that slides inside the sliding frame plate is rotatably connected to the limiting plate. An elastic member is provided between the pressing plate and the limiting plate.

[0009] Furthermore, the plug-in plate is of a triangular block structure. Inclined grooves are opened on both sides of the bottom of the plug-in plate. The plug-in slots correspond to the inclined grooves. A plug board is provided at the plug-in slot, and the plug board cooperates with the plug-in plate.

[0010] Further, reinforcing rib plates are provided on the clamping plate assembly. The clamping plate assembly is also provided with a wire groove that cooperates with the insertion rod, and the wire groove communicates with a plurality of communication grooves.

[0011] Further, a vertical groove that slidably cooperates with the limiting plate is provided on the movable rod, and a through groove for the limiting plate to pass through the insertion rod and press against the communication cylinder in a cooperating manner is provided on the insertion rod.

[0012] Further, the elastic member is a compression spring distributed obliquely. A plurality of conical columns that slidably cooperate with the elastic member are fixedly connected inside the insertion rod.

[0013] Further, the sliding frame plate is composed of a straight section frame plate and an inclined section frame plate connected. One end of the inclined section frame plate is fixedly connected with an elastic sheet.

[0014] Further, the rotating member includes a first rotating shaft and a second rotating shaft that slide inside the sliding frame plate. A connecting plate is rotatably connected between the first rotating shaft and the second rotating shaft. One end of the first rotating shaft is connected to the elastic member. A rotating shaft connected to the other end of the elastic member is rotatably connected to the pressing plate. The second rotating shaft is rotatably connected to the limiting plate.

[0015] Further, a pressing block is fixedly connected to one side of the pressing plate, and a contact plate that cooperates with the pressing block is fixedly connected to the side wall of the communication groove.

[0016] Further, both the pressing block and the contact plate are triangular structures, which facilitates the contact between the pressing block and the contact plate.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] The side clamping plate and the middle clamping plate are located at the port splicing end of the precast drainage pipe, and can be pre-assembled in segments and multi-segment assembled, reducing the construction duration, saving manpower, and improving efficiency; and the outer shape of the clamping plate assembly is a multi-rhombus inner circle and outer square composite structure design. During installation and construction, pipe pillows are not required for fixation, greatly reducing the workload. Pipe plugs, pipe pillows, and concrete encapsulation are not required, saving materials, saving water, and avoiding environmental pollution at the construction site.

[0019] Through the insertion and cooperation of the insertion rod and the communication cylinder, and the cooperation of the insertion block and the insertion slot, the splicing of multiple clamping plate assemblies is ensured. Also, the movable rod moves horizontally inside the insertion rod, causing the inclined elastic member to rotate and switch angles, driving the pressing plate to penetrate into the communication groove, pressing against the precast drainage pipe, and making the limiting plate simultaneously press inside the communication cylinder, further ensuring the stable connection between the insertion rod, the clamping plate assembly, and the precast drainage pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 Schematic diagram of the mating structure of the double-row precast pipe row and the clamping plate assembly of the present invention;

[0022] Figure 3 Left view schematic diagram of the mating structure of the precast pipe row and the clamping plate assembly of the present invention;

[0023] Figure 4 Schematic diagram of the mating structure of the single-row precast pipe row and the clamping plate assembly of the present invention;

[0024] Figure 5 Schematic diagram of the disassembled structure of the single-row precast pipe row and the clamping plate assembly of the present invention;

[0025] Figure 6 Schematic diagram of the mating structure of the clamping plate assemblies of the present invention;

[0026] Figure 7 Schematic diagram of the disassembled structure of the clamping plate assemblies of the present invention;

[0027] Figure 8 Bottom view schematic diagram of the structure of the clamping plate assembly and the precast pipe row of the present invention;

[0028] Figure 9 Schematic diagram of the disassembled structure of the two middle clamping plates of the present invention;

[0029] Figure 10 Schematic diagram of the mating structure of the insertion rod and the connecting cylinder of the present invention;

[0030] Figure 11 Cross-sectional structure schematic diagram of the clamping plate assembly of the present invention;

[0031] Figure 12 Cross-sectional structure schematic diagram of the connecting cylinder and the insertion rod of the present invention;

[0032] Figure 13 Cross-sectional structure schematic diagram of the insertion rod of the present invention;

[0033] Figure 14 Schematic diagram of the disassembled structure of the insertion rod and the movable rod of the present invention;

[0034] Figure 15 Schematic diagram of the mating structure of the limiting plate and the pressing plate of the present invention;

[0035] Figure 16 Top view schematic diagram of the mating structure of the limiting plate and the pressing plate of the present invention;

[0036] Figure 17 Schematic diagram of the structure in which the limiting frame plate and the movable rod of the present invention move away from each other;

[0037] Figure 18 Schematic diagram of the disassembled structure of the second rotating shaft and the limiting plate of the present invention;

[0038] Figure 19 It is a schematic diagram of the matching structure of the limiting frame plate and the first rotating shaft and the second rotating shaft of the present invention.

[0039] In the figure: 1, card board assembly; 2, plug-in board; 3, plug-in slot; 4, connecting tube; 5, connecting slot; 6, plug-in rod; 7, movable rod; 8, limit plate; 9, pressure plate; 10, elastic member; 11, inclined slot; 12, plug-in board; 13, reinforcing rib; 14, wire slot; 15, vertical slot; 16, through slot; 17, tapered column; 18, straight section frame plate; 19, inclined section frame plate; 20, elastic sheet; 21, first rotating shaft; 22, second rotating shaft; 23, connecting plate; 24, pressure block; 25, contact plate; 26, opening; 27, movable slot; 28, rotating shaft. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] See also Figures 1 - 19 The present invention provides a connection protection and fastening structure for prefabricated row pipes, including an edge card plate and a middle card plate for wrapping and protecting the prefabricated row pipes. The card plate assembly 1 includes an edge card plate and a middle card plate. The edge card plate is placed at the corners of multiple rows of prefabricated row pipes, and the middle card plate is located between two edge card plates. Through the cooperation of the edge card plate and the middle card plate, the outer surface of the multiple rows of prefabricated row pipes is wrapped and fastened;

[0042] It is worth noting that the side and middle boards are located at the port joints of the prefabricated pipes, and can be assembled in sections and multiple sections in advance, which can reduce construction time, save manpower and improve efficiency.

[0043] The appearance of the pallet assembly 1 is a composite structure design with a multi-diamond inner circle and an outer square. During installation and construction, there is no need to use pipe pillows for fixing, which greatly reduces the workload. There is no need for pipe plugs, pipe pillows and concrete encapsulation, which saves materials, saves water, and avoids environmental pollution at the construction site.

[0044] The side card board and the middle card board in the present application are matched in the following manner: the side of the side card board can be connected with the side card board or the middle card board, and the side of the middle card board can be connected with the side card board or the middle card board;

[0045] Multiple groups of plug-in boards 2 are fixed on one side of the side card board, and multiple groups of plug-in slots 3 are located on the other side of the side card board, and the plug-in slots 3 are located opposite to the position of the plug-in boards 2 and staggered. Similarly, the plug-in boards 2 and the plug-in slots 3 are also distributed in the middle card board.

[0046] The plug-in board 2 is a triangular block structure, with inclined grooves 11 on both sides of the bottom of the plug-in board 2, and the plug-in groove 3 corresponds to the inclined groove 11. When plugging is required, the plug-in board 2 is inserted into the plug-in groove 3 from top to bottom, and the end of the plug-in board 2 cooperates with the plug-in board 12, and the plug-in board 12 is inserted into the threaded groove of the prefabricated row pipe, thereby further ensuring the stable plugging of the prefabricated row pipe with the side card board and the middle card board;

[0047] The inclined groove 11 is provided to prevent the corners of the plug-in board 2 from protruding from the inner wall of the cardboard assembly 1 and conflicting with the position of the prefabricated row pipe. That is, the inclined groove 11 is provided to make the plug-in matching position between the inner wall of the cardboard assembly 1 and the plug-in board 2 smooth (corresponding to the non-threaded groove position of the prefabricated row pipe);

[0048] It is worth noting that: the plug-in cooperation between the plug board 12 and the end surface of the plug board 2 further ensures that after the two adjacent card board assemblies 1 are connected, the two card board assemblies 1 are in the same plane, avoiding excessive tilting or large tilting angle between the two card board assemblies 1;

[0049] Thus, the positions of the connecting tubes 4 on the two adjacent card assemblies 1 correspond, and the axial positions of the connecting tubes 4 coincide, so that the plug-in rods 6 are horizontally inserted into the connecting tubes 4 of the multiple card assemblies 1, and the connection stability of the multiple card assemblies 1 is further enhanced, so that the positions of the prefabricated row pipe ports are closely connected, and the multiple rows of prefabricated row pipes are arranged and combined stably and stably, which is convenient for construction. Among them, the side card and the middle card are provided with reinforcing ribs 13 to increase the strength of the connection protection fastening structure;

[0050] The side card plate and the middle card plate are both provided with a connecting groove 5 corresponding to the connecting tube 4, and the pressing plate 9 on the plug rod 6 passing through the connecting tube 4 corresponds to the connecting groove 5. The connecting groove 5 is provided on the side card plate and the middle card plate, and the connecting groove 5 corresponds to the position of the connecting tube 4. The side card plate and the middle card plate are also provided with a wire groove 14 cooperating with the plug rod 6, and the wire groove 14 is connected with a plurality of connecting grooves 5;

[0051] At this time, the through groove 16 on the plug board 2 faces the connecting tube 4, and the pressing plate 9 faces the connecting groove 5 accordingly. By pulling and moving the movable rod 7 located in the plug rod 6, the movable rod 7 moves along the plug rod 6 (the cross section of the movable rod 7 is rectangular, and the movable rod 7 will not rotate in the plug rod 6);

[0052] Among them, one end of the movable rod 7 is always exposed at one end of the plug-in rod 6. When the left end of the movable rod 7 is located inside the plug-in rod 6, the right end of the movable rod 7 is located outside the plug-in rod 6. Similarly, when the left end of the movable rod 7 is located outside the plug-in rod 6, the movable right end is located inside the plug-in rod 6, which is convenient for the operator to move the movable rod 7 along the plug-in rod 6.

[0053] The movable rod 7 moves horizontally within the insertion rod 6, driving the limiting plate 8 to move synchronously. The second rotating shaft 22 is rotatably connected to the limiting plate 8, so that the second rotating shaft 22 also moves synchronously. Under the action of the connecting plate 23, the first rotating shaft 21 moves synchronously. The first rotating shaft 21 and the second rotating shaft 22 are restricted by the straight-section frame plate 18 of the sliding frame plate (a sliding frame plate is fixedly connected inside the insertion rod 6, and the sliding frame plate is composed of a straight-section frame plate 18 and an inclined-section frame plate 19. The first rotating shaft 21 and the second rotating shaft 22 slide within the sliding frame plate). The limiting plate 8 moving with the movable rod 7 will not move along the vertical groove 15. The first rotating shaft 21 and the second rotating shaft 22 are in a state corresponding to the straight-section frame plate 18. While the moving direction of the pressing plate 9 faces the communication groove 5, during the process that the movable rod 7 moves and passes through the pressing plate 9, the pressing plate 9 moves along the communication groove 5, and the inclined elastic member 10 (such as a compression spring) rotates, driving the pressing plate 9 to penetrate into the communication groove 5 to press against the prefabricated pipes. The contact end of the pressing plate 9 with the prefabricated pipes can be provided with a rubber layer and has an arc shape, facilitating the pressing contact between the pressing plate 9 and the prefabricated pipes;

[0054] The inclined elastic member 10 rotates. While the inclined direction of the elastic member 10 changes to the opposite direction, the second rotating shaft 22 slides into the inclined-section frame plate 19 along the straight-section frame plate 18 of the sliding frame plate. The second rotating shaft 22 enters the top of the inclined-section frame plate 19 and presses against the elastic piece 20. The first rotating shaft 21 synchronously enters the inclined-section frame plate 19. When the pushing action on the insertion rod 6 is released, under the action of the elastic piece 20, the first rotating shaft 21 moves to the bottom end of the inclined-section frame plate 19, and the second rotating shaft 22 moves away from the elastic piece 20 at the top of the inclined-section frame plate 19. However, the first rotating shaft 21 and the second rotating shaft 22 are still located in the inclined-section frame plate 19. On the one hand, it ensures the changed inclined direction of the elastic member 10. On the other hand, it increases the downward movement distance of the pressing plate 9, so that the pressing plate 9 tightly presses against the prefabricated pipes, and at the same time, the limiting plate 8 presses against the connecting cylinder 4. The top of the limiting plate 8 has elasticity and is provided with an opening 26. The opening 26 is expanded, facilitating the reset of the opening 26 when the second rotating shaft 22 moves away from the top of the inclined-section frame plate 19. The limiting plate 8 also presses against the connecting cylinder 4;

[0055] Moreover, a triangular pressing block 24 is fixed on one side of the pressing plate 9, and a contact plate 25 with a triangular structure is also fixed on the inner wall of the communication groove 5. When the pressing plate 9 drives the pressing block 24 to move along the communication groove 5 to press against the prefabricated pipes, the pressing block 24 presses against the contact plate 25, and the contact surface between the pressing block 24 and the contact plate 25 is a friction surface;

[0056] Wherein, an activity groove 27 is formed on the insertion rod 6, and the pressing plate 9 and the pressing block 24 slide within the activity groove 27;

[0057] It should be noted that: the cross-sectional dimension of the movable slot 27 is larger than the cross-sectional dimensions of the pressing plate 9 and the pressing block 24. When the pressing plate 9 and the pressing block 24 move along the movable slot 27, slight jitter can occur (at this time, since the pressing block 24 is a rubber elastic structure and has a certain rebound effect, and while the elastic member 10 rotates, the pressing plate 9 is acted on through the rotating shaft 28, and the pressing block 24 touches the inner wall of the movable slot 27, thus generating slight jitter), which is convenient for the pressing block 24 and the pressing plate 9 to accurately enter the communication slot 5.

[0058] It should be noted that: a plurality of tapered columns 17 that are slidably engaged with the elastic member 10 are fixedly connected inside the insertion rod 6. When the elastic member 10 rotates and changes the inclination angle, the elastic member 10 first touches the tapered column 17. Under the action of the tapered column 17, the middle part of the elastic member 10 is bent, and the elastic member 10 slides along the inclined surface of the tapered column 17.

[0059] When the elastic member 10 disengages from the inclined surface of the tapered column 17, the bent elastic member 10 instantly returns to a straight state, thereby causing the pressing plate 9 and the pressing block 24 to quickly jitter, which is convenient for the pressing block 24 and the pressing plate 9 to accurately enter the communication slot 5. The straight elastic member 10 then contacts another tapered column 17, and under the action of another tapered column 17, it is bent again and slides along another tapered column 17, thereby jittering again and causing the pressing plate 9 and the pressing block 24 to jitter and enter the communication slot 5 again.

[0060] After multiple jitters, and the pressing block 24 and the pressing plate 9 further enter the communication slot 5, the pressing block 24 and the pressing plate 9 can accurately enter the communication slot 5, so that the pressing plate 9 presses on the prefabricated row of pipes, and the pressing block 24 presses on the contact plate 25, further ensuring the stability between the insertion rod 6 and the plurality of spliced card plate assemblies 1.

[0061] When it is necessary to release the pressing and fixing effect of the pressing block 24 and the pressing plate 9 on the communication cylinder 4 and the prefabricated row of pipes, first perform a pulling activity in the direction away from the insertion rod 6 at the protruding end (the end protruding from the insertion rod 6), so that the second rotating shaft 22 presses the elastic piece 20, and the first rotating shaft 21 moves synchronously. The first rotating shaft 21 is located at the junction of the straight-section frame plate 18 and the inclined-section frame plate 19. Then push the movable rod 7 (the end protruding from the insertion rod 6), so that the movable rod 7 moves in the direction close to the insertion rod 6, thereby causing the first rotating shaft 21 to slide into the straight-section frame plate 18, and finally driving the second rotating shaft 22 to slide into the straight-section frame plate 18, so that the limiting plate 8 is away from the communication cylinder 4, and the inclination angle of the elastic member 10 changes, causing the pressing plate 9 to be away from the communication slot 5.

[0062] It should be noted that, in this document, relational terms such as first and second are only used 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 term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or apparatus comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or apparatus.

[0063] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can 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 connecting, protecting and fastening structure for prefabricated pipe rows, characterized in that include: A cardboard assembly (1) for wrapping and protecting a prefabricated pipe, the cardboard assembly (1) comprising an edge cardboard and a middle cardboard, a plug-in board (2) being provided on one side of the cardboard assembly (1), and plug-in slots (3) for plugging and matching with the plug-in board (2) being provided at staggered positions on the other side, a plurality of connecting tubes (4) being provided on the cardboard assembly (1), and connecting slots (5) corresponding to the connecting tubes (4) being provided on the cardboard assembly (1); It also includes: a plug-in rod (6) inserted into a plurality of connecting tubes (4), a movable rod (7) inserted into the plug-in rod (6), a limit plate (8) and a pressure plate (9) movably inserted into the movable rod (7) and pressed against the connecting tube (4), the pressure plate (9) inserted into the connecting tube (4) and pressed against the prefabricated row pipe, a sliding frame plate fixedly connected to the plug-in rod (6), a rotating member rotatably connected to the limit plate (8) and sliding in the sliding frame plate, and an elastic member (10) is provided between the pressure plate (9) and the limit plate (8).

2. The connecting protection and fastening structure of the prefabricated pipe row according to claim 1, characterized in that: The plug board (2) is a triangular block structure. Inclined grooves (11) are provided on both sides of the bottom of the plug board (2). The plugging groove (3) corresponds to the inclined groove (11). A plug board (12) is provided at the plugging groove (3). The plug board (12) cooperates with the plug board (2).

3. The connecting, protecting and fastening structure of the prefabricated pipe row according to claim 1, characterized in that: The card board assembly (1) is provided with a reinforcing rib (13). The card board assembly (1) is also provided with a wire groove (14) that cooperates with the plug-in rod (6). The wire groove (14) is connected with a plurality of connecting grooves (5).

4. The connecting, protecting and fastening structure for prefabricated pipe rows according to claim 1, characterized in that: The movable rod (7) is provided with a vertical groove (15) for slidingly engaging with the limit plate (8), and the plug-in rod (6) is provided with a passing groove (16) for the limit plate (8) to pass through the plug-in rod (6) and to press and engage with the connecting tube (4).

5. The connecting protection and fastening structure of the prefabricated pipe row according to claim 1, characterized in that: The elastic member (10) is a compression spring that is distributed in an inclined manner, and a plurality of conical columns (17) that are slidably matched with the elastic member (10) are fixedly connected inside the plug-in rod (6).

6. The connecting protection and fastening structure of the prefabricated pipe row according to claim 1, characterized in that: The sliding frame plate is composed of a straight section frame plate (18) and an inclined section frame plate (19) connected to each other, and an elastic sheet (20) is fixedly connected to one end of the inclined section frame plate (19).

7. The connecting protection and fastening structure of the prefabricated pipe row according to claim 1, characterized in that: The rotating member comprises a first rotating shaft (21) and a second rotating shaft (22) which slide in the sliding frame plate, a connecting plate (23) is rotatably connected between the first rotating shaft (21) and the second rotating shaft (22), the first rotating shaft (21) is connected to one end of the elastic member (10), a rotating shaft (28) connected to the other end of the elastic member (10) is rotatably connected to the pressure plate (9), and the second rotating shaft (22) is rotatably connected to the limiting plate (8).

8. The connection protection and fastening structure of the prefabricated pipe row according to claim 1, characterized in that: A pressing block (24) is fixedly connected to one side of the pressing plate (9), and a contact plate (25) that cooperates with the pressing block (24) is fixedly connected to the side wall of the connecting groove (5).

9. The connection protection and fastening structure of the prefabricated pipe row according to claim 8, characterized in that: The pressing block (24) and the contact plate (25) are both triangular structures.

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