Pipeline fixing device in tunnel

Abstract

The invention discloses a pipeline fixing device in a tunnel. The pipeline fixing device comprises a ledge, the pipeline frame is arranged on the ledge; the anchor bolts are respectively arranged at the upper part and the lower part of the ledge; wherein the ledge is provided with an upper guide sleeve and a lower guide sleeve, the upper guide sleeve is arranged downwards, the lower guide sleeve is arranged upwards, and the anchor bolts are directionally mounted along the upper guide sleeve and the lower guide sleeve respectively; and the anchor bolt mounted downwards from the upper guide sleeve and the anchor bolt mounted upwards from the lower guide sleeve are locked. According to the invention, an anchor bolt cross locking and fixing mode is adopted, the upper guide sleeve and the lower guide sleeve are arranged on the ledge, so that the anchor bolt can be anchored into the pre-opened hole from the upper guide sleeve and the lower guide sleeve to be fixed, and the anchor bolt mounted from the upper guide sleeve lags behind the anchor bolt mounted from the lower guide sleeve to be locked, so that the upper anchor bolt abuts against the lower anchor bolt to be fixed; the load of the ledge can be shared by the anchor bolt in the radial direction and the axial direction, so that the probability of vibration loosening and the probability of bending or breaking are reduced, and the firmness and stability of a pipeline fixed by the ledge are effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of highway construction, and in particular to a pipeline fixing device in a tunnel. Background Art

[0002] Tunnel pipelines refer to various pipeline systems laid inside the tunnel, which are used to transport water, gas, cables, communication lines, etc. When vehicles pass through the tunnel, the inner wall of the tunnel will vibrate. In order to protect the tunnel pipelines from falling due to vibration, pipeline fixing devices are usually installed on the inner wall of the tunnel to support the pipelines.

[0003] At present, the commonly used tunnel pipeline fixing device usually adopts the method of horizontal anchoring to the inner wall of the tunnel for fixing, that is, the bracket holding the pipeline is horizontally anchored to the inner wall of the tunnel by mechanical anchor bolts. Although this method can firmly fix the bracket to the inner wall of the tunnel, after the mechanical anchor bolt is horizontally anchored, the bearing force of the bracket is along the radial direction of the mechanical anchor bolt, and the vibration caused by the passage of vehicles in the tunnel is mostly up and down vibration, which makes the mechanical anchor bolt easily displaced radially in the anchor hole, resulting in the loosening of the mechanical anchor bolt, affecting its fixation firmness and stability, and the load of the bracket is radially applied to the mechanical anchor bolt, which makes the mechanical anchor bolt easy to bend or break and lose its fixing ability.

[0004] Therefore, the existing pipeline fixing device using mechanical anchor bolts for horizontal anchoring is prone to loosening, bending or breaking during vibration because the load is radially applied to the mechanical anchor bolts, resulting in insufficient firmness and stability of the fixed pipeline. Summary of the invention

[0005] The purpose of the present invention is to provide a pipeline fixing device in a tunnel to solve the technical problem in the prior art that the load is radially applied to the mechanical anchor bolts, which are prone to loosening, bending or breaking during vibration, resulting in insufficient firmness and stability of the fixed pipeline.

[0006] In order to solve the above technical problems, the present invention specifically provides the following technical solutions:

[0007] A tunnel pipeline fixing device, comprising:

[0008] a ledge, the outer wall of which can fit on the inner wall of the tunnel;

[0009] A pipeline rack, horizontally arranged on the inner wall of the wall rack, for supporting and fixing the pipeline;

[0010] Anchor bolts are arranged at the upper and lower parts of the ledge, and are used to be anchored in pre-opened holes on the inner wall of the tunnel to fix the ledge tightly on the inner wall of the tunnel;

[0011] The ledge is provided with an upper guide sleeve and a lower guide sleeve, the port of the upper guide sleeve close to the inner wall of the tunnel is tilted downward, the port of the lower guide sleeve close to the inner wall of the tunnel is tilted upward, and each anchor bolt is respectively installed along the upper guide sleeve and the lower guide sleeve;

[0012] The anchor bolt installed downward from the upper guide sleeve is locked later than the anchor bolt installed upward from the lower guide sleeve, so that the downward anchor bolt is pressed against the upward anchor bolt.

[0013] As a preferred solution of the present invention, the anchor bolt comprises a first screw rod, a plurality of sleeves are sequentially sleeved on the first screw rod, a first nut and a first washer are sequentially arranged at the front end of the first screw rod from front to back, and the first washer abuts against the corresponding upper guide sleeve or the lower guide sleeve;

[0014] When the first nut is rotated and locked, the first screw moves forward and squeezes and expands the sleeve to press against the inner wall of the pre-opened hole to form a mechanical anchor.

[0015] As a preferred solution of the present invention, the first screw comprises a plurality of rear bottom-expanding screws, the plurality of rear bottom-expanding screws are axially connected in sequence, and the plurality of sleeves are respectively sleeved on the plurality of rear bottom-expanding screws;

[0016] The rear end of the rear bottom expansion screw is provided with a connecting screw hole, and two adjacent rear bottom expansion screws are threadedly connected to the front end of the rear bottom expansion screw through the connecting screw hole;

[0017] Among them, the first nut and the first gasket are arranged at the front end of the rear bottom expansion screw located in the front position. When the first nut is rotated and locked, multiple rear bottom expansion screws move forward and expand multiple sleeves respectively to press against the inner wall of the pre-opened hole at multiple points.

[0018] As a preferred embodiment of the present invention, the sleeve includes a barrel, and a plurality of ring plates are arranged on the outer wall of the barrel. The outer edges of the ring plates are bent toward the front end of the rear expansion screw to increase its resistance when the sleeve moves outward from the pre-opening hole.

[0019] As a preferred solution of the present invention, the first screw rod is provided with an assembly screw hole along its axis, a second screw rod is installed in the assembly screw hole, and the length of the second screw rod is greater than the length of the first screw rod;

[0020] A chemical agent tube is abutted against the rear end of the first screw, and the chemical agent tube is installed into the bottom of the pre-opened hole before the first screw is installed;

[0021] When the second screw is rotated and locked, the second screw crushes the chemical agent tube, so that the chemical adhesive is released to fill the gap between the second screw and the pre-opened hole, thereby forming a chemical anchor.

[0022] As a preferred solution of the present invention, a second nut and a second washer are sequentially arranged at the front end of the second screw rod from front to back, and the second washer abuts against the front end of the first screw rod;

[0023] When the second nut is rotated and locked, the second screw is locked in the first screw, so that the mechanical anchoring of the first screw and the chemical anchoring of the second screw form an interlocking.

[0024] As a preferred solution of the present invention, the rear end of the second screw has a pointed end, and a groove is provided at the front end of the second screw, the groove is used to adapt a connecting wrench to rotate the second screw, and is used to adapt a connecting terminal of a resistance welding machine to spot weld the two second screws abutting each other up and down.

[0025] As a preferred solution of the present invention, the pipeline rack includes two crossbeam angle braces, and the crossbeam angle braces are welded and fixed to the wall frame or are integrally formed with the wall frame;

[0026] Wherein, the two crossbeam angle braces are used to fix and support the pipelines in the tunnel.

[0027] As a preferred solution of the present invention, the crossbeam angle brace comprises a channel steel section and a plate steel section, the channel steel section and the plate steel section are welded at right angles or formed in one piece, so that after the plate steel section is fixed on the wall frame, the channel steel section is horizontal with the notch facing upward;

[0028] A plurality of limiting openings are provided through the side wall of the channel steel section, and the limiting openings are used for placing pipelines.

[0029] As a preferred solution of the present invention, a plurality of positioning holes are provided on the wall frame, positioning bolts are installed in the positioning holes, and the positioning bolts are used to be installed in the preset wall holes to position the wall frame before being fixed by the anchor bolts;

[0030] The plate steel section is provided with holes matching the wall frame, and the positioning bolts fix the plate steel section on the wall frame through the holes.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] The present invention adopts a cross-locking and fixing method of anchor bolts. By arranging an upper guide sleeve and a lower guide sleeve on the wall frame, the anchor bolts can be anchored and fixed in the pre-opened holes from the upper guide sleeve and the lower guide sleeve respectively, and the anchor bolts installed from the upper guide sleeve are locked later than the anchor bolts installed from the lower guide sleeve, so that the upper anchor bolts are pressed against the lower anchor bolts for fixation, and the wall frame load can be shared by the radial and axial directions of the anchor bolts, thereby reducing the probability of vibration loosening and the probability of bending or breaking, and effectively improving the firmness and stability of the wall frame fixed pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0034] Figure 1 A schematic diagram of the structure of a pipeline fixing device in a tunnel provided by an embodiment of the present invention;

[0035] Figure 2 A schematic diagram of the structure of the anchor bolt portion of the pipeline fixing device in the tunnel provided by an embodiment of the present invention;

[0036] Figure 3 A schematic diagram of the structure of the sleeve portion of the tunnel pipeline fixing device provided by an embodiment of the present invention;

[0037] Figure 4 A schematic diagram of the structure of the rear bottom-expanding screw rod portion of the tunnel pipeline fixing device provided by an embodiment of the present invention;

[0038] Figure 5 A schematic structural diagram of the second screw portion of the device for fixing a pipeline in a tunnel provided in an embodiment of the present invention.

[0039] The numbers in the figure represent the following:

[0040] 1-wall bracket; 2-pipeline rack; 3-anchor bolt;

[0041] 11-upper guide sleeve; 12-lower guide sleeve; 13-positioning hole; 21-crossbeam angle brace; 31-first screw rod; 32-sleeve; 33-first nut; 34-second screw rod; 35-second nut; 36-chemical agent tube;

[0042] 131-positioning bolt; 211-channel steel section; 212-plate steel section; 213-limiting opening; 311-rear expansion screw; 312-connecting screw hole; 313-assembly screw hole; 321-cylinder; 322-ring piece; 331-first gasket; 341-tip; 342-slot; 351-second gasket. DETAILED DESCRIPTION

[0043] 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.

[0044] like Figure 1 As shown, the present invention provides a device for fixing a pipeline in a tunnel, comprising:

[0045] A ledge 1, the outer wall of which can be attached to the inner wall of the tunnel;

[0046] The pipeline rack 2 is horizontally arranged on the inner wall of the wall rack 1 and is used to support and fix the pipeline;

[0047] Anchor bolts 3 are arranged at the upper and lower parts of the ledge 1, and are used to be anchored into pre-opened holes on the inner wall of the tunnel to fix the ledge 1 on the inner wall of the tunnel;

[0048] The ledge 1 has an upper guide sleeve 11 and a lower guide sleeve 12. The upper guide sleeve 11 is tilted downward at its end near the inner wall of the tunnel, and the lower guide sleeve 12 is tilted upward at its end near the inner wall of the tunnel. Each anchor bolt 3 is directional installed along the upper guide sleeve 11 and the lower guide sleeve 12 respectively.

[0049] The anchor bolt 3 installed downward from the upper guide sleeve 11 is locked later than the anchor bolt 3 installed upward from the lower guide sleeve 12 , so that the anchor bolt 3 facing downward is pressed against the anchor bolt 3 facing upward.

[0050] The tunnel pipeline fixing device of this embodiment mainly utilizes the ledge 1 with the upper guide sleeve 11 and the lower guide sleeve 12 to be installed on the inner arc wall of the tunnel, and the inner end of the upper guide sleeve 11 is set downward, and the inner end of the lower guide sleeve 12 is set upward, and the anchor bolt 3 installed from the upper guide sleeve 11 is locked after the anchor bolt 3 installed from the lower guide sleeve 12 is locked, so that the upper anchor bolt 3 is pressed against the lower anchor bolt 3 in the pre-opened hole to form an interlocking, thereby improving the seismic performance of the anchor bolt 3 fixing the ledge 1.

[0051] And because the wall frame 1 is mainly fixed by the anchor bolts 3 anchored downward and the anchor bolts 3 anchored upward, when the pipeline frame 2 carries the pipeline, the force on the wall frame 1 is dispersed on the upper and lower anchor bolts 3, and because the upper and lower anchor bolts 3 are designed at an inclined angle, the radial force acting on the anchor bolts 3 is reduced, thereby effectively improving the bearing capacity of the anchor bolts 3, and because the radial bearing capacity of the anchor bolts 3 is reduced, the vibration causes the radial relative displacement amplitude of the anchor bolts 3 to decrease, thereby reducing the separation degree between the anchor bolts 3 and the inner wall of the pre-opening, so as to always maintain a high friction resistance.

[0052] The pre-opened hole is drilled along the direction of the upper guide sleeve 11 and the lower guide sleeve 12 , and the drilling depth is slightly greater than the length of the anchor bolt 3 , so that the two holes can be connected and the upper anchor bolt 3 is pressed against the lower anchor bolt 3 to be locked.

[0053] Compared with the existing pipeline fixing device that adopts the method of fixing the wall frame with horizontal anchor bolts, the pipeline fixing device in the tunnel of this embodiment adopts the method of cross-locking and fixing with anchor bolts, and directional drilling is performed through the upper guide sleeve 11 and the lower guide sleeve 12 to form pre-opened holes that are interconnected downward and upward, and the anchor bolt 3 is fixed along the upper guide sleeve 11 and the lower guide sleeve 12, and the anchor bolt 3 installed from the upper guide sleeve 11 is locked after the anchor bolt 3 installed from the lower guide sleeve 12, so that the upper anchor bolt 3 is pressed against the lower anchor bolt 3 and locked and fixed, so that the upper anchor bolt 3 pushes the lower anchor bolt 3 tightly at the connection of the pre-opened hole and clamps them together, thereby preventing the anchor bolt 3 from loosening during vibration, avoiding the pipeline frame 2 and the wall frame 1 from loosening and falling and causing the pipeline to slip, and providing greater bearing capacity.

[0054] Based on the above embodiments, a preferred embodiment of an anchor bolt 3 is provided below.

[0055] like Figure 1 , Figure 2 As shown, the anchor bolt 3 includes a first screw rod 31, on which a plurality of sleeves 32 are sequentially sleeved, and a first nut 33 and a first washer 331 are sequentially arranged from front to back at the front end of the first screw rod 31, and the first washer 331 abuts against the corresponding upper guide sleeve 11 or lower guide sleeve 12;

[0056] When the first nut 33 is rotated and locked, the first screw rod 31 moves forward and squeezes the expansion sleeve 32 to press against the inner wall of the pre-opened hole to form a mechanical anchor.

[0057] Specifically, the sleeve 32 and the first screw rod 31 are sleeved and placed in the pre-opened hole. The first nut 33 and the first gasket 331 are pressed against the upper guide sleeve 11 or the lower guide sleeve 12 and rotated to pull out the first screw rod 31 axially. The conical end of the rear end expands the sleeve 32 outward, causing the sleeve 32 to deform and be squeezed and fixed in the pre-opened hole.

[0058] By using a plurality of sleeves 32 , when the first screw rod 31 is pulled outward, two adjacent sleeves 32 are squeezed and deformed, thereby forming a plurality of points that are clamped in the pre-opened holes.

[0059] Of course, since the upper and lower holes of the pre-opened hole are connected, the hole depth is relatively deep. In order to further improve the fixing effect of the anchor bolt 3, the following preferred embodiments are provided.

[0060] like Figure 2 , Figure 4 As shown, the first screw rod 31 includes a plurality of rear bottom-expanding screw rods 311 , the plurality of rear bottom-expanding screw rods 31 are axially connected in sequence, and the plurality of sleeves 32 are respectively sleeved on the plurality of rear bottom-expanding screw rods 31 ;

[0061] A connecting screw hole 312 is provided at the rear end of the rear bottom expansion screw rod 311, and two adjacent rear bottom expansion screw rods 311 are threadedly connected to the front end of the rear bottom expansion screw rod 311 through the connecting screw hole 312;

[0062] Among them, the first nut 33 and the first gasket 331 are arranged at the front end of the rear bottom expansion screw 311 located in the front position. When the first nut 33 is rotated and locked, multiple rear bottom expansion screws 311 move forward and expand multiple sleeves 32 respectively, so as to press against the inner wall of the pre-opened hole through multi-point expansion.

[0063] Specifically, the first screw 31 adopts a multi-section design, that is, the first screw 31 is composed of multiple rear bottom expansion screws 311, and each rear bottom expansion screw 311 is sleeved with a sleeve 32. When the multiple rear bottom expansion screws 311 are pulled outward, the multiple rear bottom expansion screws 311 are expanded and fastened in the pre-opened holes, and the expansion and tightening force of each fixed node is greater, and the fixation is more secure.

[0064] When expanding the sleeve 32, the rear bottom expansion screw 311 moves outward to generate thrust on the sleeve 32, and the sleeve 32 is prevented from moving outward by the friction between its outer wall and the inner wall of the pre-opening. However, the outer wall of the sleeve 32 is smooth and the inner wall of the pre-opening is rough, which may result in insufficient friction resistance and displacement of the sleeve 32. Based on this, the following preferred embodiments are provided.

[0065] like Figure 3 As shown, the sleeve 32 includes a barrel 321, and a plurality of ring pieces 322 are arranged on the outer wall of the barrel 321. The outer edges of the ring pieces 322 are bent toward the front end of the rear bottom expansion screw 311 to increase the resistance of the sleeve 32 when it moves outward from the pre-opening hole.

[0066] Specifically, a plurality of ring sheets 322 are arranged on the outside of the cylinder 321, and the outer edges of the ring sheets 322 are bent toward the front end of the rear expansion screw 311, that is, when the sleeve 32 is inserted into the pre-opening, the resistance is small, and when it moves outward from the pre-opening, the ring sheets 322 provide greater resistance to prevent it from moving and affecting the expansion of the sleeve 32.

[0067] Of course, if the mechanical fixation is only achieved by the sleeve 32 being expanded outward and pressed against the inner wall of the pre-opened hole, there is still a high possibility of loosening due to vibration during long-term use. Based on this, the following preferred embodiments are provided.

[0068] like Figure 5 As shown, the first screw rod 31 is provided with an assembly screw hole 313 along its axis, and a second screw rod 34 is installed in the assembly screw hole 313. The length of the second screw rod 34 is greater than that of the first screw rod 31.

[0069] A chemical agent tube 36 is abutted against the rear end of the first screw 31 , and the chemical agent tube 36 is installed into the bottom of the pre-opened hole before the first screw 31 is installed;

[0070] When the second screw 34 is rotated and locked, the second screw 34 crushes the chemical tube 36 to release the chemical adhesive to fill the gap between the second screw 34 and the pre-opened hole, thereby forming a chemical anchor.

[0071] Specifically, by forming an assembly screw hole 313 through the inside of the first screw 31, the second screw 34 can be screwed into the pre-opening along the assembly screw hole 313, so that a chemical tube 36 can be set at the end of the first screw 34 and pre-inserted into the pre-opening. After the first screw 31 is fixed with the expansion sleeve 32, the second screw 34 can extend into the pre-opening to squeeze the chemical tube 36, thereby realizing chemical anchoring.

[0072] The depth of the screw groove of the second screw 34 is greater than that of the first screw 31 , so that it has a larger contact area, thereby improving the firmness of chemical anchoring.

[0073] After the upper chemical tube 36 is broken, the chemical adhesive inside it will flow into the pre-opened lower hole, that is, the upper and lower chemical tubes 36 will flow and merge into a whole after being broken, thereby further improving the mutual locking ability of the upper and lower anchor bolts 3.

[0074] The first screw rod 31 is locked by the first nut 33 and the first gasket 331 , and the second screw rod 34 also needs to be locked so as to be interlocked with the first screw rod 31 . Based on this, the following preferred embodiments are provided.

[0075] like Figure 2 As shown, a second nut 35 and a second gasket 351 are sequentially arranged at the front end of the second screw rod 34 from front to back, and the second gasket 351 abuts against the front end of the first screw rod 31;

[0076] When the second nut 35 is rotated and locked, the second screw 34 is locked in the first screw 31, so that the mechanical anchoring of the first screw 31 and the chemical anchoring of the second screw 32 form an interlocking.

[0077] Specifically, the second screw rod 34 is locked by using the second nut 35 and the second gasket 351, so that the second gasket 351 is placed at the front end of the first screw rod 31, so that after the second nut 35 is locked, the first screw rod 31 is axially restricted by the second screw rod 34, and the second screw rod 34 is also axially restricted by the first screw rod 31, that is, interlocking is formed to provide a firm anchoring degree.

[0078] Of course, the strength of the two second screws 34 bonded and interlocked only by chemical adhesives is still insufficient, especially at the joint, where the pre-opening may not be completely covered due to insufficient chemical adhesive. Based on this, in order to further improve the firmness of the connection between the upper and lower second screws 34, the following preferred embodiments are provided.

[0079] like Figure 2 As shown, the rear end of the second screw 34 has a tip 341, and the front end of the second screw 34 is provided with a slot 342, the slot 342 is used to adapt a connecting wrench to rotate the second screw 34, and is used to adapt a connecting terminal of a resistance welding machine to spot weld the two second screws 34 abutting each other up and down.

[0080] Specifically, the rear end of the second screw 34 is designed with a tip 341, and the front end thereof has a slot 342 for connecting the terminal of the resistance welding machine. The resistance welding machine can connect the upper and lower second screws 34 and energize them. The contact area of ​​the tip 341 is small, resulting in a higher resistance, which will quickly melt and fuse. That is, the power-on time is set according to advance testing, and the upper and lower second screws 34 can be quickly welded in the pre-opened hole, thereby improving the connection strength and thus increasing the firmness.

[0081] Based on the above embodiments, a preferred embodiment of a pipe component 2 is provided below.

[0082] like Figure 1 As shown, the pipeline rack 2 includes two cross beam angle braces 21, and the cross beam angle braces 21 are welded and fixed on the wall rack 1 or are integrally formed with the wall rack 1;

[0083] The two cross beam angle braces 21 are used to fix and support the pipelines in the tunnel.

[0084] Specifically, the cross beam angle brace 21 is used to support the pipeline, and the cross beam angle brace 21 can be integrally formed on the wall frame 1 or welded to the wall frame 1.

[0085] Of course, in order to prevent the pipeline from sliding horizontally on the crossbeam angle support 21 and falling off, the following preferred embodiments are provided.

[0086] like Figure 1 As shown, the crossbeam angle brace 21 includes a channel steel section 211 and a plate steel section 212. The channel steel section 211 and the plate steel section 212 are welded at right angles or formed in one piece, so that after the plate steel section 212 is fixed on the wall frame 1, the channel steel section 211 is horizontal with the notch facing upward;

[0087] A plurality of limiting openings 213 are provided through the side wall of the channel steel section 211 , and the limiting openings 213 are used for placing pipelines.

[0088] Specifically, the channel steel section 211 of the crossbeam angle brace 21 is provided with a limiting opening 213, and the limiting opening 213 is used to limit the horizontal sliding of the pipeline, and the channel steel section 211 adopts a groove design to improve its supporting strength.

[0089] Of course, when installing the wall bracket 1, the wall bracket 1 needs to be fixed in advance to ensure that the drilled holes opened along the upper guide sleeve 11 and the lower guide sleeve 12 can be connected to form pre-opened holes. Based on this, the following preferred embodiments are provided.

[0090] like Figure 1 , Figure 2 As shown, a plurality of positioning holes 13 are provided on the wall frame 1, and positioning bolts 131 are installed in the positioning holes 13. The positioning bolts 131 are used to be installed in the preset wall holes to position the wall frame 1 before being fixed by the anchor bolts 3;

[0091] The plate steel section 212 is provided with holes matching those on the wall frame 1 , and the positioning bolts 131 fix the plate steel section 212 on the wall frame 1 through the holes.

[0092] Specifically, preset wall holes matching the multiple positioning holes 13 are preferentially opened on the inner wall of the tunnel, and the preset wall holes are drilled horizontally into the inner wall of the tunnel, which has low operation difficulty. The wall bracket is positioned and fixed in advance through the positioning holes 13, the positioning bolts 131 and the preset wall holes. At this time, the accuracy of the pre-opening formed by drilling holes through the upper guide sleeve 11 and the lower guide sleeve 12 is higher.

[0093] Furthermore, the positioning hole 13 can also be used as a fixing hole for the cross beam angle brace 21 , and can be further locked by the positioning bolt 131 to form multiple fixations.

[0094] The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and protection scope of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present application.

Claims

1. A tunnel pipeline fixing device, characterized in that: include: A wall frame (1) whose outer wall can be attached to the inner wall of the tunnel; A pipeline rack (2) is horizontally arranged on the inner wall of the wall rack (1) and is used to support and fix the pipeline; Anchor bolts (3) are arranged at the upper and lower parts of the ledge (1), and the anchor bolts (3) are used to be anchored in pre-opened holes on the inner wall of the tunnel to be fixed, so as to press and fix the ledge (1) on the inner wall of the tunnel; The ledge (1) is provided with an upper guide sleeve (11) and a lower guide sleeve (12); the port of the upper guide sleeve (11) close to the inner wall of the tunnel is arranged to be tilted downward, and the port of the lower guide sleeve (12) close to the inner wall of the tunnel is arranged to be tilted upward; each anchor bolt (3) is respectively installed in a direction along the upper guide sleeve (11) and the lower guide sleeve (12); The anchor bolt (3) installed downward from the upper guide sleeve (11) is locked with a delay against the anchor bolt (3) installed upward from the lower guide sleeve (12), so that the downward anchor bolt (3) is pressed against the upward anchor bolt (3).

2. A tunnel pipeline fixing device according to claim 1, characterized in that: The anchor bolt (3) comprises a first screw rod (31), a plurality of sleeves (32) are sequentially sleeved on the first screw rod (31), a first nut (33) and a first washer (331) are sequentially arranged at the front end of the first screw rod (31) from front to back, and the first washer (331) abuts against the corresponding upper guide sleeve (11) or the lower guide sleeve (12); When the first nut (33) is rotated and locked, the first screw rod (31) moves forward and squeezes and expands the sleeve (32) to press against the inner wall of the pre-opened hole to form a mechanical anchor.

3. A tunnel pipeline fixing device according to claim 2, characterized in that: The first screw rod (31) comprises a plurality of rear bottom-expanding screw rods (311), the plurality of rear bottom-expanding screw rods (311) are axially connected in sequence, and the plurality of sleeves (32) are respectively sleeved on the plurality of rear bottom-expanding screw rods (311); A connecting screw hole (312) is provided at the rear end of the rear bottom expanding screw rod (311), and two adjacent rear bottom expanding screw rods (311) are threadedly installed and connected to the front end of the rear bottom expanding screw rod (311) through the connecting screw hole (312); Wherein, the first nut (33) and the first gasket (331) are arranged at the front end of the rear bottom expansion screw (311) located in the front position. When the first nut (33) is rotated and locked, the plurality of rear bottom expansion screws (311) move forward and expand the plurality of sleeves (32) respectively to press against the inner wall of the pre-opened hole at multiple points.

4. A tunnel pipeline fixing device according to claim 3, characterized in that: The sleeve (32) comprises a barrel (321), and a plurality of ring sheets (322) are arranged on the outer wall of the barrel (321). The outer edges of the ring sheets (322) are bent toward the front end of the rear bottom expansion screw (311) so as to increase the resistance of the sleeve (32) when the sleeve (32) moves outward from the pre-opening hole.

5. A tunnel pipeline fixing device according to any one of claims 2 to 4, characterized in that: The first screw rod (31) is provided with an assembly screw hole (313) along its axis, a second screw rod (34) is installed in the assembly screw hole (313), and the length of the second screw rod (34) is greater than the length of the first screw rod (31); A chemical agent tube (36) is abutted against the rear end of the first screw (31), and the chemical agent tube (36) is installed into the bottom of the pre-opened hole before the first screw (31) is installed; When the second screw (34) is rotated and locked, the second screw (34) crushes the chemical tube (36), causing it to release chemical adhesive to fill the gap between the second screw (34) and the pre-opened hole, thereby forming a chemical anchor.

6. The tunnel pipeline fixing device according to claim 5, characterized in that: A second nut (35) and a second washer (351) are arranged in sequence from front to back at the front end of the second screw rod (34), and the second washer (351) abuts against the front end of the first screw rod (31); When the second nut (35) is rotated and locked, the second screw (34) is locked in the first screw (31), so that the mechanical anchoring of the first screw (31) and the chemical anchoring of the second screw (32) form an interlocking.

7. The tunnel pipeline fixing device according to claim 6, characterized in that: The rear end of the second screw rod (34) has a tip (341), and the front end of the second screw rod (34) is provided with a slot (342), the slot (342) is used to adapt to a connection wrench to rotate the second screw rod (34), and is used to adapt to a connection terminal of a resistance welding machine to spot weld two second screw rods (34) abutting against each other.

8. The tunnel pipeline fixing device according to claim 1, characterized in that: The pipeline rack (2) comprises two crossbeam angle braces (21), and the crossbeam angle braces (21) are welded and fixed on the wall frame (1) or are integrally formed with the wall frame (1); The two crossbeam angle braces (21) are used to fix and support the pipeline in the tunnel.

9. The tunnel pipeline fixing device according to claim 2, characterized in that: The crossbeam angle brace (21) comprises a channel steel section (211) and a plate steel section (212), wherein the channel steel section (211) and the plate steel section (212) are welded at right angles or integrally formed, so that after the plate steel section (212) is fixed on the wall frame (1), the channel steel section (211) is horizontal with the notch facing upwards; A plurality of limiting openings (213) are provided through the side wall of the channel steel section (211), and the limiting openings (213) are used for placing pipelines.

10. The tunnel pipeline fixing device according to claim 9, characterized in that: A plurality of positioning holes (13) are provided on the wall frame (1), positioning bolts (131) are installed in the positioning holes (13), and the positioning bolts (131) are used to be installed in preset wall holes to position the wall frame (1) before being fixed by the anchor bolts (3); The plate steel section (212) is provided with holes matching the wall frame (1), and the positioning bolts (131) fix the plate steel section (212) to the wall frame (1) through the holes.

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