Arch foot bolt hole protective sleeve

Abstract

The utility model discloses an arch foot bolt hole protective sleeve which comprises a limiting rod, one end of the limiting rod is fixedly connected with a first baffle, the other side of the limiting rod is provided with a second baffle, and the second baffle is connected to the outer wall of the limiting rod in a sleeved mode through an inserting hole. According to the arch foot bolt hole protection sleeve, the first baffle, the second baffle, the limiting rod and the inserting hole are matched, so that the bolt holes in the two sides of the arch foot connecting plate are covered, the bolt holes are prevented from being blocked when concrete is sprayed, and normal connection of bolts is not affected; and the distance between the first baffle and the second baffle can be adjusted according to the actual size of the arch springing, the application range is expanded, and operation and use on an actual construction site are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of construction, in particular to an arch foot bolt hole protective cover. Background Art

[0002] The arch foot refers to the junction between the road surface and the tunnel wall. For all arch structures, the two ends of the arch and the connection between the arch feet are fixed with connecting plates and bolts. After installation and fixation, sprayed concrete is required to fill the gaps between the arch feet, but it is easy to cause the bolt holes at the arch foot connecting plates to be covered, affecting the normal connection of the bolts. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides an arch foot bolt hole protective cover, which solves the problem that the bolt holes at the arch foot connecting plate are easily covered when filling the gaps between the arch feet, thereby affecting the normal connection of the bolts.

[0004] To achieve the above-mentioned purpose, the utility model is implemented through the following technical scheme: an arch foot bolt hole protective cover, including a limit rod, one end of the limit rod is fixedly connected to a first baffle, and the other side of the limit rod is provided with a second baffle, and the second baffle is connected to the outer wall of the limit rod through a socket.

[0005] Preferably, a connecting ring is fixedly connected to one side of the first baffle.

[0006] Preferably, a fixing bolt is provided on one side of the second baffle plate, the fixing bolt is threadedly connected to the second baffle plate and is tightly pressed against the limiting rod.

[0007] Preferably, a shielding plate is provided above the fixing bolt.

[0008] Preferably, one end of the shielding plate is snap-connected to one side of the second baffle through a snap-in slot.

[0009] Beneficial Effects

[0010] The utility model provides an arch foot bolt hole protection cover. The utility model has the following beneficial effects: the arch foot bolt hole protection cover, through the cooperation between the first baffle plate, the second baffle plate, the limit rod and the insertion hole, not only realizes the covering of the bolt holes on both sides of the arch foot connecting plate, avoids the clogging of the bolt holes during the spraying of concrete, and affects the normal connection of the bolts, but also can adjust the spacing between the first baffle plate and the second baffle plate according to the actual size of the arch foot, expands its application range, and is conducive to operation and use at the actual construction site. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 for Figure 1 A schematic diagram of the back side of the first baffle;

[0013] Figure 3 for Figure 1 Schematic diagram of the structure of the second baffle, the limit rod and the shielding plate.

[0014] In the figure: 1. limit rod, 2. first baffle, 3. second baffle, 4. connecting ring, 5. jack, 6. fixing bolt, 7. baffle, 8. slot. DETAILED DESCRIPTION

[0015] 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.

[0016] By those skilled in the art, the components in this case are connected in sequence. The specific connection and operation sequence should refer to the following working principle. The detailed connection means are well-known technologies in the art. The following mainly introduces the working principle and process.

[0017] When filling the gaps between the arch feet, it is easy to cause the bolt holes at the arch foot connecting plates to be covered, affecting the normal connection of the bolts.

[0018] In view of this, the utility model provides an arch foot bolt hole protection cover, which, through the cooperation between the first baffle plate, the second baffle plate, the limit rod and the socket, not only realizes covering the bolt holes on both sides of the arch foot connecting plate to avoid clogging of the bolt holes during spraying concrete and affecting the normal connection of the bolts, but also can adjust the distance between the first baffle plate and the second baffle plate according to the actual size of the arch foot, thereby expanding its scope of application and facilitating operation and use at the actual construction site.

[0019] Depend on Figure 1-3 It can be seen that the arch foot bolt hole protective cover in this case includes a limit rod 1, one end of the limit rod 1 is fixedly connected to a first baffle 2, and the other side of the limit rod 1 is provided with a second baffle 3, and the second baffle 3 is sleeved on the outer wall of the limit rod 1 through a socket 5.

[0020] In the specific implementation process, it is worth pointing out that the limit rod 1 not only realizes the limitation of the first baffle 2 and the second baffle 3 through the cooperation with the socket 5, but also can adjust the distance between the two, so that it can be suitable for arch feet of different specifications. The purpose is to cover the bolt holes on both sides of the arch foot connection by the first baffle 2 and the second baffle 3 respectively, so as to avoid the concrete covering and wrapping the bolts and bolt holes during the concrete spraying process.

[0021] In one practicable manner, see Figure 1 and Figure 2 A connecting ring 4 is fixedly connected to one side of the first baffle 2 .

[0022] In the specific implementation process, it is worth pointing out that the purpose of setting the connecting ring 4 is to enable the arch foot bolt hole protective cover to be removed through the connecting ring 4 after the concrete construction is completed.

[0023] In one practicable manner, see Figure 1 and Figure 3 A fixing bolt 6 is provided on one side of the second baffle plate 3 , and the fixing bolt 6 is threadedly connected to the second baffle plate 3 and is tightly pressed against the limiting rod 1 .

[0024] In the specific implementation process, it is worth pointing out that the fixing bolt 6 can fix the distance between the two first baffles 2. Such a design has a simple structure and is easy to operate.

[0025] Furthermore, a shielding plate 7 is provided above the fixing bolt 6 .

[0026] In the specific implementation process, it is worth pointing out that the shielding plate 7 can fix the position of the fixing bolt 6 to prevent concrete from entering the thread of the fixing bolt 6 and affecting the normal rotation.

[0027] Furthermore, one end of the shielding plate 7 is snap-connected to one side of the second baffle plate 3 through the snap-in slot 8 .

[0028] In the specific implementation process, it is worth pointing out that the design of the slot 8 facilitates the fixing of the shielding plate 7 and the second baffle 3. Of course, other methods can be used to fix the two. This embodiment only provides one possible implementation method.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0030] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A protective sleeve for an arch foot bolt hole, comprising a limiting rod (1), characterized in that: One end of the limiting rod (1) is fixedly connected to a first baffle (2), and the other side of the limiting rod (1) is provided with a second baffle (3), and the second baffle (3) is sleeved on the outer wall of the limiting rod (1) through a socket (5).

2. The arch foot bolt hole protective cover according to claim 1, characterized in that: A connecting ring (4) is fixedly connected to one side of the first baffle (2).

3. The arch foot bolt hole protective cover according to claim 1, characterized in that: A fixing bolt (6) is provided on one side of the second baffle plate (3); the fixing bolt (6) is threadedly connected to the second baffle plate (3) and is tightly abutted against the limiting rod (1).

4. The arch foot bolt hole protective cover according to claim 3, characterized in that: A shielding plate (7) is provided above the fixing bolt (6).

5. The arch foot bolt hole protective cover according to claim 4, characterized in that: One end of the shielding plate (7) is clamped to one side of the second baffle plate (3) via a clamping slot (8).

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