Automatic alignment and installation device for fire-fighting pipeline flange bolts
The automatic alignment and installation device for fire pipeline flange bolts uses mounting seats and rubber sleeves to automatically align and fix multiple bolts, solving the problem of low bolt and flange alignment efficiency in fire pipeline installation, improving installation efficiency and enhancing the sealing and protection of bolts.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Filing Date
- 2025-07-17
- Publication Date
- 2026-07-10
AI Technical Summary
During the installation of fire protection pipelines, the alignment and installation of bolts and flanges is inefficient, especially when working at heights where manual operation is difficult, resulting in low installation efficiency.
Design an automatic alignment and installation device for fire pipeline flange bolts. The device uses a mounting base and a rubber sleeve to simultaneously slide multiple bolts into the flange through hole. The rubber sleeve and the retaining base achieve automatic alignment and fixation of the bolts, avoiding manual alignment and insertion one by one.
It improves the installation efficiency of fastening flange bolts in fire protection pipelines, simplifies high-altitude operations, reduces the difficulty of manual operation, and enhances the sealing and protective properties of bolts.
Smart Images

Figure CN224476155U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bolt installer technology, specifically an automatic alignment installer for fire pipeline flange bolts. Background Technology
[0002] As is commonly known, in fire-fighting water supply systems, fire-fighting pipes are often connected and fixed to each other using flanges and bolts.
[0003] For example, the utility model patent with application announcement number CN222798384U, application announcement date of April 25, 2025, and title "A Reinforcement Structure for Fire Protection Pipelines" has the following specific structure: the fire protection pipeline includes two fire protection pipelines, and a flange is provided between the two fire protection pipelines. The two flanges are fixedly connected by connectors. A vertical plate is fixedly installed at the bottom of the fire protection pipeline. A horizontal plate is inserted into the two vertical plates, and an insert plate is inserted into the horizontal plate. The bottom of the insert plate is fixedly connected to the bottom of the vertical plate by bolts.
[0004] The shortcoming of the existing technology is that several bolts are used to tighten and fix the flanges on the two fire pipes to achieve the flange splicing and fixing of the fire pipes. However, in the actual installation process, fire pipes are often laid at high places, and it is necessary to manually align several bolts in sequence and insert them into the through holes of the flanges. This is not convenient for the bolts to be aligned with the flanges and the installation is inefficient. Utility Model Content
[0005] The purpose of this invention is to provide an automatic alignment and installation device for fire pipeline flange bolts to address the aforementioned shortcomings in the prior art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic alignment and installation device for fire-fighting pipeline flange bolts, comprising a bolt component, which can be divided into a bolt head and a bolt stud, and a mounting seat that is partially annular with an entry groove, which can be divided into a clamping part and a placement part. The placement part has mounting holes arranged in a circumferential array, and a rubber sleeve is fixedly provided on the mounting seat and arranged coaxially with the mounting holes. The bolt stud of the bolt component passes through the mounting holes so that the bolt head abuts against the placement part, and the rubber sleeve surrounds the periphery of the bolt head.
[0007] As a further description of the above technical solution: it also includes a partially annular retaining seat, which is coaxially engaged with the mounting base to abut against the end of the screw head.
[0008] As a further description of the above technical solution: an annular groove is coaxially provided in the mounting hole, and the bolt is fixedly installed on the flange to compress the deformation of the placement part, and the volume of the annular groove is reduced by the pressure deformation so that the rubber sleeve is deformed on the periphery of the bolt head to form a seal.
[0009] As a further description of the above technical solution: the retaining base is symmetrically provided with a snap-fit part, the placement part is symmetrically provided with a snap-fit groove, the snap-fit groove is provided with a limiting protrusion, and the annular groove is compressed and deformed to reduce the volume so that the limiting protrusion deforms away from the other side wall of the snap-fit groove.
[0010] As a further description of the above technical solution: the inner side of the rubber sleeve is provided with an inner groove.
[0011] As a further description of the above technical solution: the outer ring surface of the placement part is fixedly provided with protrusions distributed in a circular array.
[0012] As a further description of the above technical solution: the mounting base is made of polyurethane.
[0013] As a further description of the above technical solution: the rubber sleeve is a corrosion-resistant rubber component.
[0014] As a further description of the above technical solution: the retaining seat is made of polyurethane.
[0015] As a further description of the above technical solution: the mounting base is provided with a corrosion-resistant coating.
[0016] In the above technical solution, the present invention provides an automatic alignment and installation device for fire-fighting pipeline flange bolts. Multiple bolts can be installed on the mounting base, which can be slidably fitted onto the fire-fighting pipeline. Then, multiple bolts on the mounting base are simultaneously slidably inserted into the through holes of the flange, completing the alignment of multiple bolts with the through holes of the flange. This eliminates the need for manual handling of the bolts and their sequential insertion into the through holes of the flange, thus improving the installation efficiency of bolt fastening the flanges of fire-fighting pipelines. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0018] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;
[0019] Figure 2 A schematic diagram of the structure of the mounting base, rubber sleeve, and retaining base provided in the embodiments of this utility model;
[0020] Figure 3 A schematic diagram of the structure of the mounting base and rubber sleeve provided in the embodiments of this utility model;
[0021] Figure 4 This is a schematic diagram of the structure of the retaining seat provided in an embodiment of the present utility model;
[0022] Figure 5 This is a schematic cross-sectional view of the overall structure of an embodiment of the present utility model.
[0023] Explanation of reference numerals in the attached figures:
[0024] 1. Mounting base; 11. Clamping part; 12. Placement part; 121. Mounting hole; 122. Annular groove; 123. Snap-fit groove; 124. Limiting protrusion; 13. Entry groove; 14. Protrusion; 2. Rubber sleeve; 21. Inner groove; 3. Anti-fixing base; 31. Snap-fit part; 9. Bolt; 91. Thread head; 92. Thread stud. Detailed Implementation
[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0026] Please see Figure 1-5 This utility model provides a technical solution: an automatic alignment installer for fire pipeline flange bolts, including a bolt member 9, which can be divided into a bolt head 91 and a bolt stud 92, and a mounting seat 1 that is partially annular with an entry groove 13, which can be divided into a clamping part 11 and a placement part 12. The placement part 12 has mounting holes 121 arranged in a circumferential array. A rubber sleeve 2 is fixedly provided on the mounting seat 1 and arranged coaxially with the mounting holes 121. The bolt stud 92 of the bolt member 9 passes through the mounting holes 121 so that the bolt head 91 abuts against the placement part 12, and the rubber sleeve 2 surrounds the bolt head 91.
[0027] Preferably, the bolt part 9 is divided into a head portion 91 and a stud portion 92, and as... Figure 3As shown, the mounting base 1 can be divided into a clamping part 11 and a placement part 12. When it is necessary to fasten the flanges of two fire-fighting pipelines with bolts 9, the stud part 92 of the bolt 9 can be passed through the mounting hole 121 of the placement part 12, and the thread head 91 is fixed by the rubber sleeve 2. Then, multiple bolts 9 are installed on the mounting base 1 in sequence. Then, the mounting base 1 is pulled open and deformed to be fitted onto the fire-fighting pipeline through the groove 13. Then, the mounting base 1 is slid on the fire-fighting pipeline, and multiple bolts 9 on the mounting base 1 are simultaneously slid into the through hole of the flange. This completes the alignment of multiple bolts 9 with the through hole of the flange at the same time, and it is not necessary to manually pick up the bolts 9 and align them with the through hole of the flange in sequence, which improves the installation efficiency of fastening the flanges of the fire-fighting pipelines with bolts 9. Then, a lock nut is installed on the other end of the stud portion 92 of the bolt 9, thus completing the fastening between the flanges of the two fire pipes. At this time, the bolt 9 and the lock nut also fix the mounting base 1 to both sides of the two flanges, thereby achieving the shielding and protection of the flange end face.
[0028] In the above technical solution, multiple bolts 9 can be installed on the mounting base 1, which can be slidably fitted onto the fire protection pipeline. Then, the multiple bolts 9 on the mounting base 1 can be simultaneously slidably inserted into the through holes of the flange, completing the alignment of the multiple bolts 9 with the through holes of the flange. Moreover, it is not necessary to manually pick up the bolts 9 and align them with the through holes of the flange in sequence, thus improving the installation efficiency of fastening the bolts 9 to the flange of the fire protection pipeline.
[0029] In another embodiment of the present invention, a partially annular retaining seat 3 is further included, which is coaxially engaged with the mounting base 1 to abut the end of the screw head 91.
[0030] Preferred, such as Figure 1 As shown, the retaining seat 3 can be snapped and fixed on the mounting seat 1, so that the retaining seat 3 abuts against the end of the threaded head 91 of the bolt 9. The retaining seat 3 is used to fix and lock the bolt 9 on the mounting seat 1, so as to avoid the problem that the bolt stud 92 of the bolt 9 will be knocked out of the mounting seat 1 by the flange impact when it is not aligned with the flange through hole, and further improve the alignment and installation efficiency between the bolt 9 and the flange.
[0031] In another embodiment of the present invention, an annular groove 122 is coaxially provided in the mounting hole 121. The bolt 9 is fixedly installed on the flange to compress and deform the placement part 12. The volume of the annular groove 122 is reduced by the pressure deformation so that the rubber sleeve 2 is deformed around the screw head 91 to form a seal.
[0032] Preferred, such as Figure 3As shown, an annular groove 122 is provided in the mounting hole 121, and the annular groove 122 is located inside the rubber sleeve 2. When the mounting seat 1 is slid on the fire pipe so that the stud part 92 is inserted into the through hole of the flange, a locking nut is installed at the other end of the stud part 92 to tighten and fix the two flanges by using the locking nut and the threaded head 91. The placement part 12 is also located between the locking nut and the threaded head 91. At this time, the threaded head 91 will squeeze the placement part 12 to deform and compress the volume of the annular groove 122. That is, the placement part 12 is deformed by pressure, causing the rubber sleeve 2 on the placement part 12 to move closer to the mounting hole 121 in the axial direction. At this time, the rubber sleeve 2 can be squeezed against the periphery of the threaded head 91 by the deformation pressure to form a seal, thereby reducing the corrosion rate of the stud part 92 of the bolt 9 and improving the protection of the bolt 9.
[0033] In another embodiment of the present invention, a locking part 31 is symmetrically arranged on the fixing seat 3, and a locking groove 123 is symmetrically opened on the placement part 12. A limiting protrusion 124 is provided in the locking groove 123. The volume of the annular groove 122 is reduced by pressure deformation so that the limiting protrusion 124 deforms away from the other side wall of the locking groove 123.
[0034] Preferred, such as Figure 3 and Figure 4 As shown, a locking part 31 is fixedly provided on the abutment 3, and a locking groove 123 is provided on the placement part 12. The locking part 31 and the abutment 3 are integrally formed. The locking part 31 can be inserted into the locking groove 123 to complete the locking between the abutment 3 and the mounting base 1. A limiting protrusion 124 is also provided in the locking groove 123. When the locking part 31 extends into the locking groove 123, the end of the locking part 31 abuts against the limiting protrusion 124, and the limiting protrusion 124 is used to fix the locking part 31 in the locking groove 123. When a locking nut is installed at the other end of the stud portion 92 to tighten and fix the two flanges using the locking nut and the screw head portion 91, the screw head portion 91 will compress the volume of the annular groove 122 by squeezing and deforming the placement portion 12. At this time, the protrusion 14 will move away from the other side wall of the snap-fit groove 123 due to the deformation of the placement portion 12, thereby completing the release and unlocking of the snap-fit portion 31 from the snap-fit groove 123. This realizes that when the bolt 9 in the mounting hole 121 has been tightened and fixed, the snap-fit portion 31 at the abutment 3 will automatically disengage to complete the automatic disassembly of the abutment 3, and can also be used to indicate whether the bolt 9 at that location is tightened in place.
[0035] In another embodiment of this utility model, an inner groove 21 is provided on the inner side of the rubber sleeve 2.
[0036] Preferred, such as Figure 3As shown, the inner side of the rubber sleeve 2 is provided with an inner groove 21. When the mounting base 1 is slid on the fire pipe so that the stud part 92 is inserted into the through hole of the flange, a locking nut is installed at the other end of the stud part 92 to tighten and fix the two flanges by means of the locking nut and the screw head 91. The placement part 12 is also located between the locking nut and the screw head 91. At this time, the screw head 91 will squeeze the placement part 12 to deform and compress the volume of the annular groove 122. That is, the placement part 12 is deformed by pressure, causing the rubber sleeve 2 on the placement part 12 to move closer to the mounting hole 121 in the axial direction. At this time, the rubber sleeve 2 can be squeezed to the periphery of the screw head 91 by the deformation pressure to form a seal. Since the inner groove 21 is provided in the rubber sleeve 2, it can form a sealed buffer cavity on the periphery of the screw head 91, thereby further improving the protection of the bolt 9 and reducing the corrosion rate of the stud part 92 of the bolt 9.
[0037] In another embodiment of the present invention, a protrusion 14 arranged in a circular array is fixedly provided on the outer ring surface of the placement part 12.
[0038] Preferably, the outer ring surface of the placement part 12 is provided with a protrusion 14 to facilitate the installer to drive the mounting seat 1 to slide and rotate axially on the fire pipe, thereby facilitating the alignment and installation of the bolts 9 on the mounting seat 1 with the through hole of the flange, and improving installation efficiency.
[0039] In another embodiment of this utility model, the mounting base 1 is made of polyurethane.
[0040] Preferably, the mounting base 1 is made of polyurethane to improve its service life.
[0041] In another embodiment of this utility model, the rubber sleeve 2 is a corrosion-resistant rubber component.
[0042] Preferably, the rubber sleeve 2 is made of corrosion-resistant rubber to improve its corrosion resistance and extend its service life.
[0043] In another embodiment of this utility model, the retaining base 3 is made of polyurethane.
[0044] Preferably, the retaining seat 3 is made of polyurethane to improve its service life.
[0045] In another embodiment of the present invention, the mounting base 1 is provided with a corrosion-resistant coating.
[0046] Preferably, the mounting base 1 is provided with a corrosion-resistant coating to further improve its corrosion resistance.
[0047] Working principle:
[0048] First, the stud portion 92 of the bolt 9 is passed through the mounting hole 121 of the placement portion 12, and the thread head portion 91 is fixed by the rubber sleeve 2. Then, multiple bolts 9 are installed on the mounting base 1 in sequence. The retaining seat 3 is snapped and fixed on the mounting base 1, so that the retaining seat 3 abuts against the end of the thread head portion 91 of the bolt 9. Then, the mounting base 1 is pulled open and deformed to be installed on the fire pipe through the groove 13. Then, the mounting base 1 is slid on the fire pipe, and multiple bolts 9 on the mounting base 1 are simultaneously slid into the through hole of the flange, thereby completing the alignment of multiple bolts 9 with the through hole of the flange at the same time.
[0049] A locking nut is installed at the other end of the stud portion 92 to tighten and fix the two flanges using the locking nut and the screw head portion 91. The placement portion 12 is also located between the locking nut and the screw head portion 91. At this time, the screw head portion 91 will compress the placement portion 12 and deform, thus compressing the volume of the annular groove 122. That is, the placement portion 12 is deformed under pressure, causing the rubber sleeve 2 on the placement portion 12 to move closer to the mounting hole 121 in the axial direction. The rubber sleeve 2 can be squeezed against the periphery of the screw head portion 91 by the deformation pressure to form a seal. The protrusion 14 is deformed by the placement portion 12 and moves away from the other side wall of the snap-fit groove 123, thereby completing the release and unlocking of the snap-fit portion 31 from the snap-fit groove 123. This realizes that when the bolt 9 in the mounting hole 121 has been tightened and fixed, the snap-fit portion 31 at the abutment 3 automatically disengages to complete the automatic disassembly of the abutment 3.
[0050] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. An automatic alignment and installation device for fire-fighting pipeline flange bolts, comprising bolt components (9), which can be divided into a bolt head (91) and a bolt stud (92), characterized in that, It also includes a mounting base (1) that is partially annular with an entry groove (13), which can be divided into a clamping part (11) and a placement part (12). The placement part (12) has mounting holes (121) arranged in a circumferential array. A rubber sleeve (2) is fixedly provided on the mounting base (1) and arranged coaxially with the mounting holes (121). The stud part (92) of the bolt (9) passes through the mounting hole (121) so that the head part (91) abuts against the placement part (12), and the rubber sleeve (2) surrounds the circumference of the head part (91).
2. The automatic alignment and installation device for fire-fighting pipeline flange bolts according to claim 1, characterized in that, It also includes a partially annular retainer (3), which is coaxially engaged with the mounting base (1) to abut the end of the screw head (91).
3. The automatic alignment and installation device for fire-fighting pipeline flange bolts according to claim 2, characterized in that, An annular groove (122) is coaxially provided in the mounting hole (121). The bolt (9) is fixedly installed on the flange to compress the placement part (12) and the annular groove (122) is compressed and deformed, so that the rubber sleeve (2) is deformed around the screw head (91) to form a seal.
4. The automatic alignment and installation device for fire-fighting pipeline flange bolts according to claim 3, characterized in that, The retaining base (3) is symmetrically provided with a snap-fit part (31), and the placement part (12) is symmetrically provided with a snap-fit groove (123). A limiting protrusion (124) is provided in the snap-fit groove (123). The volume of the annular groove (122) is reduced by pressure deformation so that the limiting protrusion (124) deforms away from the other side wall of the snap-fit groove (123).
5. The automatic alignment and installation device for fire-fighting pipeline flange bolts according to claim 3, characterized in that, The inner side of the rubber sleeve (2) is provided with an inner groove (21).
6. The automatic alignment and installation device for fire-fighting pipeline flange bolts according to claim 1, characterized in that, The outer ring surface of the placement part (12) is fixedly provided with protrusions (14) arranged in a circular array.
7. The automatic alignment and installation device for fire-fighting pipeline flange bolts according to claim 1, characterized in that, The mounting base (1) is made of polyurethane.
8. The automatic alignment and installation device for fire-fighting pipeline flange bolts according to claim 1, characterized in that, The rubber sleeve (2) is a corrosion-resistant rubber component.
9. The automatic alignment and installation device for fire-fighting pipeline flange bolts according to claim 2, characterized in that, The retaining seat (3) is made of polyurethane.
10. The automatic alignment and installation device for fire-fighting pipeline flange bolts according to claim 7, characterized in that, The mounting base (1) is provided with a corrosion-resistant coating.