Plug-in type steel arch

Abstract

The utility model provides a plug-in type steel arch, which relates to the technical field of arched girders and comprises a steel arch, two ends of the steel arch are respectively connected with a joint unit and a plug unit, one end of the joint unit far away from the steel arch is provided with a slot, and one end of the plug unit far away from the steel arch is provided with a bulge. And the slot on the joint unit is matched with the bulge on the plug unit. The connector unit and the plug unit are arranged at the two ends of the steel arch respectively, the inserting groove and the protrusion which are matched with each other are arranged on the connector unit and the plug unit respectively, and when the steel arch is assembled, only the protrusion of the plug unit needs to be inserted in the inserting groove direction of the connector unit. When the steel arch is disassembled, only the protrusions of the plug units need to be pushed out in the direction of the inserting grooves of the connector units, and therefore the efficiency of installing and disassembling the steel arch is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of arch beams, in particular to a plug-in type steel arch frame. Background Art

[0002] With the continuous development of high-speed rail, highway and subway tunnel construction, tunnel construction projects are gradually increasing. The use of steel arch frames for temporary reinforcement and support in tunnel construction is an important step in tunnel construction. Traditional steel arch frames are fixed with bolts for reinforcement, but as a temporary supporting structure, the steel arch frame needs to be dismantled in subsequent processes. During the dismantling process, multiple fixing bolts need to be removed, which is time-consuming and labor-intensive. Summary of the invention

[0003] The purpose of the utility model is to provide a plug-in steel arch frame to improve the above problems. In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0004] The present application provides a plug-in steel arch frame, comprising: a steel arch frame, wherein a joint unit and a plug unit are respectively connected at both ends of the steel arch frame, a slot is provided at one end of the joint unit away from the steel arch frame, a protrusion is provided at one end of the plug unit away from the steel arch frame, and the slot on the joint unit fits with the protrusion on the plug unit.

[0005] Furthermore, the joint unit includes a first connection block and a joint end, one end of the first connection block is fixedly connected to the joint end, and one end of the first connection block away from the joint end is fixedly connected to one end of the steel arch frame.

[0006] Furthermore, the plug unit includes a second connecting block and a plug end, one end of the second connecting block is fixedly connected to the plug end, and one end of the second connecting block away from the plug end is fixedly connected to the other end of the steel arch.

[0007] Furthermore, a plurality of first through holes are provided on the joint end, and the first through holes are perpendicular to the fixing surface of the joint end and the first connecting block.

[0008] Furthermore, a plurality of second through holes are provided on the plug end, the second through holes are perpendicular to the fixing surface of the plug end and the second connecting block, and the diameter of the second through holes is the same as that of the first through holes.

[0009] Furthermore, a plurality of T-slots are provided on the surface of the connector end away from one end of the first connecting block, the length of the T-slots is the same as the length of the wide side or the long side on the surface, and the plurality of T-slots are parallel to each other.

[0010] Furthermore, a plurality of T-shaped protrusions are provided on the surface of the plug end away from one end of the second connecting block, the length of the T-shaped protrusion is the same as the length of the wide side or the long side on the surface, the plurality of T-shaped protrusions are parallel to each other, the T-shaped protrusions are the same length as the T-shaped slots, and the T-shaped slots fit with the T-shaped protrusions.

[0011] Furthermore, a plurality of T-shaped slots are symmetrically arranged along the center line of the end face, the T-shaped protrusions are symmetrically arranged along the center line of the end face, and the positions of the T-shaped slots on the connector end correspond to the positions of the T-shaped protrusions on the plug end.

[0012] Furthermore, multiple first through holes are located on both sides of the T-shaped slot, and the first through holes are symmetrically arranged along the center line of the end face where the T-shaped slot is located. The second through holes are located on both sides of the T-shaped protrusion, and the second through holes are symmetrically arranged along the center line of the end face where the T-shaped protrusion is located. The position of the first through hole on the connector end corresponds to the position of the second through hole on the plug end.

[0013] Furthermore, the number of the T-shaped slots is 2, the number of the T-shaped protrusions is 2, the number of the first through holes is 2, and the number of the second through holes is 2.

[0014] The beneficial effects of the utility model are:

[0015] The utility model provides a joint unit and a plug unit at both ends of the steel arch frame, and matching slots and protrusions are respectively provided on the joint unit and the plug unit. During assembly, it is only necessary to insert the protrusion of the plug unit along the slot direction of the joint unit. During disassembly of the steel arch frame, it is only necessary to push the protrusion of the plug unit along the slot direction of the joint unit, thereby greatly improving the efficiency of installation and disassembly of the steel arch frame.

[0016] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the embodiments of the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures specifically pointed out in the written description, claims, and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of the plug-in steel arch frame described in the embodiment of the utility model;

[0019] Figure 2 It is a top view schematic diagram of the connector end described in the embodiment of the utility model;

[0020] Figure 3 It is a front view schematic diagram of the connector end described in the embodiment of the utility model;

[0021] Figure 4 It is a top view schematic diagram of the plug end described in the embodiment of the utility model;

[0022] Figure 5 It is a front view schematic diagram of the plug end described in the embodiment of the utility model.

[0023] Markings in the figure: 1, steel arch; 2, joint unit; 3, plug unit; 21, first connecting block; 22, joint end; 23, first through hole; 24, T-shaped slot; 31, second connecting block; 32, plug end; 33, second through hole; 34, T-shaped protrusion. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, rather than all the embodiments. The components of the embodiment of the utility model generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the utility model for protection, but merely represents the selected embodiment of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0025] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of the present utility model, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0026] See also Figure 1 , this embodiment provides a plug-in steel arch frame, including:

[0027] A steel arch frame 1, with a joint unit 2 and a plug unit 3 connected to both ends of the steel arch frame 1, a slot is provided at one end of the joint unit 2 away from the steel arch frame 1, a protrusion is provided at one end of the plug unit 3 away from the steel arch frame 1, and the slot on the joint unit 2 fits with the protrusion on the plug unit 3;

[0028] When installing the steel arch frame 1, it is only necessary to insert the protrusion of the plug unit 3 along the slot direction of the connector unit 2 to successfully install it. When disassembling the steel arch frame 1, it is only necessary to push the protrusion of the plug unit 3 out along the slot direction of the connector unit 2. Compared with the bolt fixing method in the prior art, the combination of the protrusion and the slot can greatly shorten the assembly and disassembly time of the steel arch frame 1 and improve the work efficiency of the disassembly workers.

[0029] The joint unit 2 includes a first connecting block 21 and a joint end 22, one end of the first connecting block 21 is fixedly connected to the joint end 22, and the end of the first connecting block 21 away from the joint end 22 is fixedly connected to one end of the steel arch frame 1; the steel arch frame 1 is fixedly connected to the joint end 22 through the first connecting block 21, the steel arch frame 1 and the first connecting block 21 are detachable, and the first connecting block 21 and the joint end 22 are also detachable, that is, different models of steel arch frames 1 can be selected according to actual construction needs, and matching first connecting blocks 21 and required joint ends 22 are used.

[0030] The plug unit 3 includes a second connecting block 31 and a plug end 32, one end of the second connecting block 31 is fixedly connected to the plug end 32, and the end of the second connecting block 31 away from the plug end 32 is fixedly connected to the other end of the steel arch frame 1; the steel arch frame 1 is fixedly connected to the plug end 32 through the second connecting block 31, the steel arch frame 1 and the second connecting block 31 are detachable, and the second connecting block 31 and the plug end 32 are also detachable, that is, different models of steel arch frames 1 can be selected according to actual construction needs, and matching second connecting blocks 31 and required plug ends 32 are used.

[0031] like Figure 2 and Figure 3 As shown, this embodiment provides a schematic structural diagram of the connector end 22:

[0032] A plurality of first through holes 23 are provided on the joint end 22, and the first through holes 23 are perpendicular to the fixing surface of the joint end 22 and the first connecting block 21; a circular first through hole 23 is adopted in the present application, and in practical applications, the shape of the through hole can be adjusted according to actual needs, and there is no special limitation here.

[0033] like Figure 3 and Figure 4 As shown, this embodiment provides a schematic structural diagram of the plug end 32:

[0034] A plurality of second through holes 33 are provided on the plug end 32, and the second through holes 33 are perpendicular to the fixing surface of the plug end 32 and the second connecting block 31, and the second through holes 33 have the same diameter as the first through holes 23. A circular second through hole 33 is used in the present application, and the shape of the through hole can be adjusted according to actual needs in practical applications, and there is no special restriction here, but it is necessary to ensure that the shape and size of the second through hole 33 are exactly the same as those of the first through hole 23. When installing the steel arch frame 1, align the through holes of the joint end 22 and the plug end 32, and then insert a fixing pin into the through hole to prevent the joint end 22 and the plug end 32 from moving relative to each other, thereby ensuring the stability of the steel arch frame 1.

[0035] A plurality of T-slots 24 are provided on the surface of the joint end 22 away from the end of the first connecting block 21. The length of the T-slots 24 is the same as the length of the wide side or the long side of the surface on which it is located, and the plurality of T-slots 24 are parallel to each other. The first connecting block 21 is usually rectangular, and the actual setting direction of the T-slots 24 can be set according to actual needs, so as to achieve the purpose of easy installation.

[0036] A plurality of T-shaped protrusions 34 are arranged on the surface of the plug end 32 away from the end of the second connecting block 31. The length of the T-shaped protrusion 34 is the same as the length of the wide side or the long side on the surface on which it is located. The plurality of T-shaped protrusions 34 are parallel to each other. The T-shaped protrusion 34 is the same length as the T-shaped slot 24, and the T-shaped slot 24 fits with the T-shaped protrusion 34. The second connecting block 31 is exactly the same size as the first connecting block 21. The plane with the protrusions on the plug end 32 and the plane with the slots on the connector end 22 are both rough contact surfaces, so that there is a large friction between the two contact surfaces after installation to avoid relative movement. The slot on the connector end 22 can also be set to a circular, rectangular or irregular shape, etc., and there is no special restriction here. It is necessary to ensure that the protrusion on the plug end 32 matches the shape on the connector end 22.

[0037] A plurality of T-slots 24 are symmetrically arranged along the center line of the end face, and a T-shaped protrusion 34 is symmetrically arranged along the center line of the end face. The position of the T-slot 24 on the connector end 22 corresponds to the position of the T-shaped protrusion 34 on the plug end 32, ensuring that after the T-shaped protrusion 34 on the plug end 32 is inserted into the T-slot 24 on the connector end 22, the two contact surfaces are completely fitted.

[0038] Multiple first through holes 23 are located on both sides of the T-slot 24, and the first through holes 23 are symmetrically arranged along the center line of the end face where the T-slot 24 is located. The second through holes 33 are located on both sides of the T-shaped protrusion 34, and the second through holes 33 are symmetrically arranged along the center line of the end face where the T-shaped protrusion 34 is located. The position of the first through holes 23 on the connector end 22 corresponds to the position of the second through holes 33 on the plug end 32; the through holes are arranged on both sides of the slot and the protrusion to ensure that the insertion operation of the pin can be performed after the slot on the connector end 22 is engaged with the protrusion on the plug end 32.

[0039] The number of T-shaped slots 24 is 2, the number of T-shaped protrusions 34 is 2, the number of first through holes 23 is 2, and the number of second through holes 33 is 2; the number of slots, protrusions and through holes can be set according to actual needs in the project, and there is no special restriction here.

[0040] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

[0041] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A plug-in steel arch frame, It is characterized in that include: A steel arch frame (1), wherein two ends of the steel arch frame (1) are respectively connected to a joint unit (2) and a plug unit (3), the end of the joint unit (2) away from the steel arch frame (1) is provided with a slot, the end of the plug unit (3) away from the steel arch frame (1) is provided with a protrusion, and the slot on the joint unit (2) fits with the protrusion on the plug unit (3).

2. The plug-in steel arch according to claim 1, Features The joint unit (2) comprises a first connection block (21) and a joint end (22), one end of the first connection block (21) is fixedly connected to the joint end (22), and one end of the first connection block (21) away from the joint end (22) is fixedly connected to one end of the steel arch frame (1).

3. The plug-in steel arch according to claim 2, Features The plug unit (3) comprises a second connection block (31) and a plug end (32), one end of the second connection block (31) is fixedly connected to the plug end (32), and one end of the second connection block (31) away from the plug end (32) is fixedly connected to the other end of the steel arch frame (1).

4. The plug-in steel arch according to claim 3, Features A plurality of first through holes (23) are provided on the joint end (22), and the first through holes (23) are perpendicular to the fixing surface of the joint end (22) and the first connecting block (21).

5. The plug-in steel arch according to claim 4, It is characterized in that A plurality of second through holes (33) are provided on the plug end (32), the second through holes (33) are perpendicular to the fixing surface of the plug end (32) and the second connecting block (31), and the diameter of the second through holes (33) is the same as that of the first through holes (23).

6. The plug-in steel arch according to claim 5, Features A plurality of T-shaped slots (24) are provided on the surface of the joint end (22) away from the first connecting block (21), the length of the T-shaped slots (24) being the same as the length of the wide side or the long side on the surface, and the plurality of T-shaped slots (24) are parallel to each other.

7. The plug-in steel arch according to claim 6, Features A plurality of T-shaped protrusions (34) are arranged on the surface of the plug end (32) away from the second connection block (31), the length of the T-shaped protrusion (34) is the same as the length of the wide side or the long side of the surface on which it is located, the plurality of T-shaped protrusions (34) are parallel to each other, the T-shaped protrusion (34) is the same as the length of the T-shaped slot (24), and the T-shaped slot (24) fits with the T-shaped protrusion (34).

8. The plug-in steel arch according to claim 7, Features A plurality of T-shaped slots (24) are symmetrically arranged along the center line of the end face, and the T-shaped protrusions (34) are symmetrically arranged along the center line of the end face, and the positions of the T-shaped slots (24) on the connector end (22) correspond to the positions of the T-shaped protrusions (34) on the plug end (32).

9. The plug-in steel arch according to claim 8, Features , a plurality of first through holes (23) are located on both sides of the T-shaped slot (24), and the first through holes (23) are symmetrically arranged along the center line of the end face where the T-shaped slot (24) is located; the second through holes (33) are located on both sides of the T-shaped protrusion (34), and the second through holes (33) are symmetrically arranged along the center line of the end face where the T-shaped protrusion (34) is located; the position of the first through holes (23) on the connector end (22) corresponds to the position of the second through holes (33) on the plug end (32).

10. The plug-in steel arch according to claim 9, Features The number of the T-shaped slots (24) is 2, the number of the T-shaped protrusions (34) is 2, the number of the first through holes (23) is 2, and the number of the second through holes (33) is 2.

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