Anti-backflow device for grouting pipe orifice
By designing a grouting pipe port baffle that can be flipped and closed under gravity, the problems of pipeline blockage and connection collapse during fire-fighting grouting are solved, and construction efficiency and safety are improved.
Patent Information
- Application Number
- CN202420886813.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-26
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-04-26
AI Technical Summary
During the fire prevention and grouting process, the grouting pipe circuit can easily lead to blockage and collapse of the connection, frequent maintenance affects the construction progress and poses safety hazards.
Design a grouting pipe port anti-reflow device, including a baffle that can be turned over under the impact of the medium, exposes the discharge port, and closes the discharge port under the action of gravity to ensure that the medium flows to the grouting space, the backstop is reset and closed. Inlet to prevent the pipeline connection from collapsing or grouting space from collapsing.
Effectively prevent grouting space from being overfilled or continuously after filling, reduce collapse and safety hazards at pipeline connections, and improve construction efficiency and safety.
Smart Images
Figure CN222163665U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fire prevention and extinguishing grouting systems, in particular to a grouting pipe mouth anti-backflow device. Background Art
[0002] When grouting for fire prevention and extinguishing, it is necessary to mix fly ash and water in a certain proportion and transport them from the grouting station to the grouting site through the grouting pipeline. During the grouting filling process, excessive pressure can easily cause pipeline blockage and collapse of pipeline joints, leading to frequent maintenance and time waste during the construction process, which greatly affects the construction progress. More importantly, there are major safety hazards. Utility Model Content
[0003] In view of this, the utility model provides a grouting pipe mouth anti-backflow device, which can turn over the baffle under the impact of the flowing medium to expose the discharge port, and can fit the discharge port under the action of gravity and close the discharge port in the medium flow direction. That is, the medium can be transported to the grouting space through the discharge port. When the grouting space is filled, the baffle can be reset under the combined action of its own weight and the filler inside the grouting space. At this time, the baffle abuts against the feed port and closes the feed port, reducing the possibility of grouting inside the grouting space after it is filled or filled to the target degree, so that the pipeline connection is damaged or the closed wall of the grouting space collapses under pressure.
[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0005] A grouting pipe orifice backflow prevention device, comprising:
[0006] A connecting assembly, having a feed port for threaded connection to the grouting pipe, and having a discharge port facing a target position, the discharge port being in communication with the grouting pipe;
[0007] The backflow prevention component includes a baffle movably connected to the connecting component, the baffle is used to form a channel between the baffle and the connecting component for opening the discharge port under the impact of the medium, and the baffle is used to abut and close the discharge port after rotating toward the connecting component under the action of gravity.
[0008] Preferably, the backflow prevention assembly further comprises a connecting rod hinged to the connecting assembly, and the connecting rod is fixedly connected to the top edge of the baffle.
[0009] Preferably, when the baffle abuts against and closes the discharge port, the baffle is in an inclined posture with the top end facing toward the grouting pipe and the bottom end facing away from the grouting pipe.
[0010] Preferably, the connection assembly includes a feed pipe threadedly connected to the grouting pipe, a discharge pipe for fixing the anti-backflow assembly, and a clamp for fixing the feed pipe and the discharge pipe.
[0011] Preferably, the inner wall of the clamp is provided with a slot for simultaneously accommodating at least a portion of the discharge pipe and at least a portion of the feed pipe, and a sealing assembly is provided in the slot.
[0012] Preferably, the hoop includes two hoop plates which are hinged to each other and used to form a cylindrical structure after rotation, ear plates which are arranged at the ends of the two hoop plates and used to abut against each other, and bolts for fixing the two ear plates. Deformation grooves that penetrate the ear plates along the direction of the rotation axis of the hoop plates are provided on the opposite side walls of the two ear plates.
[0013] Preferably, a plurality of structural grooves are provided on the outer side wall of the clamp, and the structural grooves form a square grid-like raised pattern on the outer side wall of the clamp.
[0014] Preferably, the connection assembly at the feed inlet has a mounting plate for fixing at the target position.
[0015] It can be seen from the above technical solutions that the baffle of the grouting pipe mouth anti-backflow device provided by the utility model can be turned over under the impact of the flowing medium to expose the discharge port, and can fit the discharge port under the action of gravity and close the discharge port in the medium flow direction. That is, the medium can be transported to the grouting space through the discharge port. When the grouting space is filled, the baffle can be reset under the combined action of its own weight and the filler inside the grouting space. At this time, the baffle abuts against the feed port and closes the feed port, reducing the possibility of grouting inside the grouting space after it is filled or filled to the target degree, so that the pipeline connection is damaged or the closed wall of the grouting space collapses under pressure. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0017] Figure 1 is a schematic diagram showing the structure of a grouting nozzle backflow prevention device according to an exemplary embodiment;
[0018] Figure 2 is a schematic diagram showing a connection component structure according to an exemplary embodiment;
[0019] Figure 3 According to an exemplary embodiment, Figure 2 The schematic diagram in the figure shows the location of the structural slot.
[0020] Reference numerals:
[0021] 1. Connecting assembly; 11. Feed pipe; 111. Feed port; 112. Feed connecting plate; 12. Discharge pipe; 121. Discharge port; 122. Discharge connecting plate; 2. Hoop; 21. Hoop plate; 22. Bolt; 23. Ear plate; 231. Slot; 232. Mounting slot; 233. Raised pattern; 234. Structural slot; 24. Deformation slot; 3. Anti-backflow assembly; 31. Baffle; 32. Connecting rod; 4. Mounting plate; 5. Sealing assembly; 51. First sealing ring; 52. Second sealing ring. DETAILED DESCRIPTION
[0022] The utility model discloses a grouting pipe mouth anti-backflow device, which can turn over the baffle under the impact of the flowing medium to expose the discharge port, and can fit the discharge port under the action of gravity and close the discharge port in the medium flow direction. That is, the medium can be transported to the grouting space through the discharge port, and when the grouting space is filled, the baffle can be reset under the combined action of its own weight and the filler inside the grouting space, at which time the baffle abuts against the feed port and closes the feed port, reducing the possibility of grouting inside the grouting space after it is filled or filled to the target degree, so that the pipeline connection is damaged or the closed wall of the grouting space is compressed and collapsed.
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] In an exemplary embodiment of the present disclosure, a grouting nozzle backflow prevention device is provided, such as Figure 1 As shown, Figure 1 is a schematic diagram showing the structure of a grouting nozzle backflow prevention device according to an exemplary embodiment; Figure 2 is a schematic diagram showing a connection component structure according to an exemplary embodiment; Figure 3 According to an exemplary embodiment Figure 2 The figure below shows the location of the structural slot. Figures 1 to 3 Provide explanation.
[0025] Some specific implementation modes described below are intended to facilitate those skilled in the art to understand the present embodiment, and the present embodiment is not limited to some specific implementation modes described below.
[0026] Reference Figure 1 and Figure 2An exemplary embodiment of the present disclosure provides a grouting nozzle backflow prevention device, the grouting nozzle backflow prevention device comprising:
[0027] The connecting assembly 1 has a feed port 111 for threaded connection to the grouting pipe, and has a discharge port 121 facing the target position, and the discharge port 121 is communicated with the grouting pipe;
[0028] The backflow prevention component 3 includes a baffle 31 movably connected to the connecting component 1. The baffle 31 is used to form a channel between the connecting component 1 and the connecting component 1 for opening the discharge port 121 under the impact of the medium. The baffle 31 is used to rotate toward the connecting component 1 under the action of gravity and then abut and close the discharge port 121.
[0029] For example, refer to Figure 1 and Figure 2 The feed port 111 and the discharge port 121 are respectively arranged at opposite ends of the connection component 1 , and the medium inside the grouting pipe can enter the connection component 1 through the feed port 111 and then enter the target position through the discharge port 121 .
[0030] The backflow prevention assembly 3 also includes a connecting rod 32 hinged to the connecting assembly 1, one end of the connecting rod 32 is hinged to the top of the side wall of the connecting assembly 1, and the other end of the connecting rod 32 is bent toward the feed port 111 and fixedly connected to the top edge of the baffle 31. The baffle 31 is a disc-shaped structure. When the medium flows through the inside of the connecting assembly 1 and there is no shielding on the side of the baffle 31 away from the connecting assembly 1, the baffle 31 can be pushed open by the medium flowing out through the discharge port 121, and the baffle 31 is in a flipping posture tilted relative to the discharge port 121, thereby exposing the discharge port 121, so that the medium inside the connecting assembly 1 flows out through the channel formed between the baffle 31 and the discharge port 121. When the grouting pipe stops grouting, the baffle 31 is reset under the action of its own weight, and the baffle 31 abuts against the discharge port 121 again and covers the discharge port 121 in the length direction of the connecting assembly 1. Similarly, when the medium pressure inside the connection component 1 is low, the medium cannot lift up the baffle 31, and the discharge port 121 is closed. Similarly, when there is something that hinders the rotation of the baffle 31 or blocks the baffle 31 on the side of the baffle 31 away from the connection component 1, the medium pressure inside the connection component 1 cannot overcome the component force of the baffle 31's own weight and the resistance to the baffle 31 turning over from the outside, and the discharge port 121 is still closed.
[0031] It should be understood that different medium flow pressures need to be set according to different actual working conditions, and the implementer only needs to conduct a limited number of experiments to obtain the above medium flow pressures. A torsion spring (not shown in the figure) for preventing the baffle 31 from separating from the discharge port 121 can also be fixedly connected to the end of the connecting rod 32, one end of the torsion spring is fixedly connected to the connecting rod 32, and the other end is fixedly connected to the connecting assembly 1.
[0032] In this embodiment, the baffle 31 can be turned over under the impact of the flowing medium, so that the discharge port 121 is exposed, and can be attached to the discharge port 121 under the action of gravity and the discharge port 121 is closed in the medium flow direction. That is, the medium can be transported to the grouting space through the discharge port 121. When the grouting space is filled, the baffle 31 can be reset under the combined action of its own weight and the filler inside the grouting space. At this time, the baffle 31 abuts against the feed port 111 and closes the feed port 111, reducing the possibility of grouting inside the grouting space after it is filled or filled to the target degree, so that the pipeline connection is damaged or the closed wall of the grouting space is compressed and collapsed.
[0033] In an exemplary embodiment of the present disclosure, referring to Figure 1 and Figure 2 When the baffle 31 abuts against and closes the discharge port 121, the baffle 31 is in an inclined posture with the top end facing the grouting pipe and the bottom end away from the grouting pipe.
[0034] For example, refer to Figure 1 and Figure 2 The discharge port 121 is in an elliptical shape with a tilted long axis and a horizontal short axis. The top of the discharge port 121 faces the direction of the feed port 111, and the bottom of the discharge port 121 faces away from the direction of the feed port 111. When the baffle 31 abuts against the discharge port 121 only under the action of its own weight, the baffle 31 is in an inclined posture with the top end facing the direction of the feed port 111. At this time, the baffle 31 abuts against and blocks the physical structure of the port of the connecting component 1 at the discharge port 121 in the length direction of the connecting component 1.
[0035] In an exemplary embodiment of the present disclosure, referring to Figure 1 and Figure 2 The connection assembly 1 includes a feed pipe 11 threadedly connected to the grouting pipe, a discharge pipe 12 for fixing the anti-backflow assembly 3, and a clamp 2 for fixing the feed pipe 11 and the discharge pipe 12.
[0036] For example, refer to Figure 1 and Figure 2 The feed pipe 11, the clamp 2 and the discharge pipe 12 are coaxially arranged, the feed port 111 is located at the end of the feed pipe 11 away from the discharge pipe 12, the discharge port 121 is located at the end of the discharge pipe 12 away from the feed pipe 11, the end of the feed pipe 11 facing the discharge pipe 12 is located inside the embracing area of the clamp 2 and is covered by the clamp 2, the end of the discharge pipe 12 facing the feed pipe 11 is located inside the embracing area of the clamp 2 and is covered by the clamp 2, the clamp 2 abuts against and fixes the feed pipe 11 and the discharge pipe 12 at the same time, and the medium flows from the feed port 111 to the discharge port 121 along the axial direction of the discharge pipe 12.
[0037] In this embodiment, the connecting component 1 at the feed port 111 has a mounting plate 4 for fixing at the target position. The mounting plate 4 is in a vertical posture and is fixedly connected to the outer wall of the feed pipe 11. The edge of the mounting plate 4 extends out of the edge of the clamp 2. The mounting plate 4 can make the connecting component 1 more conveniently fixed to other bearing foundations. For example, anchor rods are welded on the mounting plate 4, and the aforementioned anchor rods are fixed to the rock mass, so that the connecting component 1 can be fixed at the current position in a stable posture.
[0038] In an exemplary embodiment of the present disclosure, referring to Figure 1 and Figure 3 The hoop 2 includes two hoop plates 21 which are hinged to each other and used to form a cylindrical structure after rotation, ear plates 23 which are arranged at the ends of the two hoop plates 21 and are used to abut each other, and bolts 22 for fixing the two ear plates 23. Deformation grooves 24 that penetrate the ear plates 23 along the rotation axis direction of the hoop plates 21 are provided on the opposite side walls of the two ear plates 23.
[0039] For example, refer to Figure 1 and Figure 3 The hoop 2 has a plate structure with a semi-annular profile, the bending areas of the two hoop plates 21 are opposite, the two ends of the two hoop plates 21 are aligned respectively, the hinge position of the hoop 2 is located at the same end of the two hoop plates 21, the ear plate 23 is fixedly connected to the other end of the hoop plates 21, there are two ear plates 23 and they are fixedly connected to the two hoop plates 21 respectively, the ear plate 23 extends in the horizontal direction away from the hoop plates 21, the bolt 22 penetrates the two ear plates 23 in the vertical direction, and the bolt 22 is threaded with a nut for tightening the ear plate 23, the deformation groove 24 is opened on the side wall of one ear plate 23 facing the other ear plate 23, and penetrates the ear plate 23 along the rotation axis direction of the hoop plate 21, and the two deformation grooves 24 on the two ear plates 23 are combined to form a cylindrical through groove structure with the axis horizontally arranged.
[0040] The inner wall of the clamp 2 is provided with a slot 231 for accommodating at least part of the discharge pipe 12 and at least part of the feed pipe 11 at the same time, and a sealing assembly 5 is provided in the slot 231. The end of the feed pipe 11 facing the discharge pipe 12 is fixedly connected with an annular feed connection plate 112, the feed connection plate 112 is flush with the end of the feed pipe 11 facing the discharge pipe 12 and extends to the outside of the side wall of the feed pipe 11, and the end of the discharge pipe 12 facing the feed pipe 11 is fixedly connected with an annular discharge connection plate 122, the discharge connection plate 122 is flush with the end of the discharge pipe 12 facing the feed pipe 11 and extends to the outside of the side wall of the discharge pipe 12. The slot 231 extends from the inner wall of the hoop plate 21 to the inside of the physical structure of the hoop plate 21, and presents a semicircular ring structure that matches the contour of the hoop plate 21 along the extension direction of the hoop plate 21. The feed connecting plate 112 and the discharge connecting plate 122 are respectively inserted into the opposite sides of the slot 231, and the outer side walls of the feed connecting plate 112 and the discharge connecting plate 122 both abut against the inner side wall of the slot 231. The end face of the feed connecting plate 112 facing away from the discharge connecting plate 122 abuts against one end face of the slot 231, and the end face of the discharge connecting plate 122 facing away from the feed connecting plate 112 abuts against the other end face of the slot 231. The sealing assembly 5 includes a first sealing ring 51 placed between the feed connecting plate 112 and the discharge connecting plate 122. The outer wall of the first sealing ring 51 is flush with the outer wall of the feed connecting plate 112, that is, the outer wall of the first sealing ring 51 is flush with the outer wall of the discharge connecting plate 122, and the inner wall of the first sealing ring 51 is flush with the inner wall of the discharge pipe 12, that is, the inner wall of the first sealing ring 51 is flush with the inner wall of the feed pipe 11, and the first sealing ring 51 is pressed tightly against the inside of the clamp 2 by the feed connecting plate 112 and the discharge connecting plate 122. A mounting groove 232 matching the contour of the hoop plate 21 is opened on the inner wall of the clamp 2, and the mounting groove 232 is located between the feed connecting plate 112 and the discharge connecting plate 122. The edges of the mounting groove 232 are flush with the outer edges of the feed connecting plate 112 and the outer edges of the discharge connecting plate 122 respectively, and a second sealing ring 52 is fixed inside the mounting groove 232, and the inner side wall of the second sealing ring 52 abuts against the outer side wall of the first sealing ring 51.
[0041] In this embodiment, a plurality of structural grooves 234 are provided on the outer wall of the clamp 2 , and the structural grooves 234 extend from the outer wall of the hoop plate 21 to the inside of the hoop plate 21 , and the structural grooves 234 form a square grid-like raised pattern 233 on the outer wall of the clamp 2 .
[0042] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A grouting nozzle backflow prevention device, characterized in that: include: A connecting assembly (1) having a feed port (111) for threaded connection to the grouting pipe, and having a discharge port (121) facing a target position, the discharge port (121) being in communication with the grouting pipe; The backflow prevention assembly (3) comprises a baffle (31) movably connected to the connecting assembly (1), the baffle (31) being used to form a channel between the baffle and the connecting assembly (1) under the impact of a medium for opening the discharge port (121), and the baffle (31) being used to rotate in the direction of the connecting assembly (1) under the action of gravity and then abut against and close the discharge port (121).
2. The grouting nozzle backflow prevention device according to claim 1, characterized in that: The backflow prevention assembly (3) further comprises a connecting rod (32) hinged to the connecting assembly (1), wherein the connecting rod (32) is fixedly connected to the top edge of the baffle (31).
3. The grouting nozzle backflow prevention device according to claim 1, characterized in that: When the baffle (31) abuts against and closes the discharge port (121), the baffle (31) is in an inclined posture with the top end facing toward the grouting pipe and the bottom end facing away from the grouting pipe.
4. The grouting nozzle backflow prevention device according to claim 1, characterized in that: The connection assembly (1) comprises a feed pipe (11) threadedly connected to the grouting pipe, a discharge pipe (12) for fixing the backflow prevention assembly (3), and a clamp (2) for fixing the feed pipe (11) and the discharge pipe (12).
5. The grouting nozzle backflow prevention device according to claim 4, characterized in that: The inner wall of the clamp (2) is provided with a slot (231) for simultaneously accommodating at least a portion of the discharge pipe (12) and at least a portion of the feed pipe (11), and a sealing assembly (5) is provided in the slot (231).
6. The grouting nozzle backflow prevention device according to claim 4, characterized in that: The hoop (2) comprises two hoop plates (21) which are hinged to each other and used to rotate to form a cylindrical structure, ear plates (23) which are arranged at the ends of the two hoop plates (21) and used to abut against each other, and bolts (22) used to fix the two ear plates (23). Deformation grooves (24) which penetrate the ear plates (23) along the rotation axis direction of the hoop plates (21) are formed on the opposite side walls of the two ear plates (23).
7. The grouting nozzle backflow prevention device according to claim 4, characterized in that: A plurality of structural grooves (234) are provided on the outer side wall of the clamp (2), and the structural grooves (234) form square grid-shaped raised patterns (233) on the outer side wall of the clamp (2).
8. The grouting nozzle backflow prevention device according to claim 1, characterized in that: The connection assembly (1) at the feed inlet (111) is provided with a mounting plate (4) for fixing at the target position.