A bridge steel bar connection sleeve protection structure

Abstract

The utility model discloses a bridge steel bar connection sleeve protection structure in the technical field of connection sleeves, comprising a connection sleeve, a first steel bar and a second steel bar, wherein the first steel bar and the second steel bar are respectively inserted at two sides of the connection sleeve, an inner wall of the connection sleeve is provided with an internal thread, and outer walls of one end of the first steel bar and the second steel bar close to each other are both provided with external threads, an outer wall of the connection sleeve is provided with an observation component, the observation component comprises a circular groove, the circular groove is arranged in the middle of the outer wall of the connection sleeve, an observation hole is arranged on the inner side of the circular groove, and a hexagon socket bolt is inserted together with the observation hole and the inner side of the circular groove. The utility model facilitates observation of the center position in the connection sleeve during connection through the coordinated use of the circular groove and the observation hole, so as to ensure that the connection between the first steel bar and the second steel bar is located at the center position of the connection sleeve, thereby preventing the connection between the steel bars from being loose, and the circular groove and the observation hole can be closed by the hexagon socket bolt after the connection is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of steel bar connection sleeves, in particular to a bridge steel bar connection sleeve protection structure. Background Art

[0002] During the construction of bridges, steel bars are one of the most commonly used supporting and connecting components, and the steel bar connecting sleeve, as the simplest and fastest way to connect steel bars, has the advantages of high connection strength and good connection stability. After searching, a patent document with publication number CN218668208U discloses a steel bar connecting sleeve. This utility model can not only generally adapt to the screwing tools on the construction site, but also improve the connection strength after pouring. However, when the above-mentioned utility model is used, it is inconvenient to observe the internal situation of the connecting sleeve, resulting in that when the steel bars are connected, it is impossible to ensure that the connection point of the steel bars at both ends is located at the center of the connecting sleeve, which may lead to a loose connection between the steel bars. For this reason, it is necessary to propose a bridge steel bar connecting sleeve protection structure. Utility Model Content

[0003] The utility model aims to provide a bridge reinforcement connection sleeve protection structure to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bridge steel bar connecting sleeve protection structure, comprising a connecting sleeve, a first steel bar and a second steel bar, the first steel bar and the second steel bar are respectively inserted on both sides of the connecting sleeve, the inner wall of the connecting sleeve is provided with an internal thread, the outer walls of the ends of the first steel bar and the second steel bar close to each other are both provided with external threads, the external threads are adapted to the internal threads, the outer wall of the connecting sleeve is provided with an observation component, the observation component comprises a circular groove, the circular groove is provided in the middle of the outer wall of the connecting sleeve, an observation hole is provided on the inner side of the circular groove, the observation hole is connected with the interior of the connecting sleeve, and the observation hole and the inner side of the circular groove are jointly inserted with hexagon socket bolts.

[0005] Preferably, the inner wall of the observation hole is provided with a threaded groove matched with the hexagon socket bolt, and the end of the hexagon socket bolt is flush with the end of the circular groove.

[0006] Preferably, the sum of the external thread lengths of the first steel bar and the second steel bar is greater than the length of the connecting sleeve.

[0007] Preferably, a plurality of raised grooves are provided on both sides of the outer wall of the connecting sleeve, and the raised grooves are distributed in a ring array.

[0008] Preferably, both ends of the connecting sleeve are provided with chamfers.

[0009] Preferably, the connecting sleeve is configured as a carbon steel reinforcement sleeve.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. The utility model is provided with an observation assembly. By using the circular groove and the observation hole in combination, it is convenient to observe the center position in the connecting sleeve during connection, so as to ensure that the connection between the first steel bar and the second steel bar is located at the center position of the connecting sleeve, and prevent the connection between the steel bars from being loose. The circular groove and the observation hole can be closed by the hexagon socket bolt after the connection is completed.

[0012] 2. In the utility model, the strength of the connecting sleeve can be improved by the raised groove, and the friction force on its surface is increased to facilitate the screwing operation of the connecting sleeve. The chamfers at both ends of the connecting sleeve can reduce stress concentration and increase the durability of the connecting sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the connecting sleeve of the utility model;

[0015] Figure 3 It is a schematic diagram of the structure of the observation component of the utility model.

[0016] In the figure: 1. connecting sleeve; 2. first steel bar; 3. second steel bar; 4. internal thread; 5. external thread; 6. observation assembly; 61. circular groove; 62. observation hole; 63. hexagon socket bolt; 7. raised groove; 8. chamfer. DETAILED DESCRIPTION

[0017] 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.

[0018] Embodiment 1:

[0019] See also Figure 1In the process of bridge construction, steel bars are one of the most commonly used supporting and connecting components, and steel bar connecting sleeves are the simplest and fastest way to connect steel bars, with the advantages of high connection strength and good connection stability. The utility model provides a technical solution: a bridge steel bar connecting sleeve protection structure, including a connecting sleeve 1, a first steel bar 2 and a second steel bar 3, the first steel bar 2 and the second steel bar 3 are respectively inserted on both sides of the connecting sleeve 1, and the connecting sleeve 1 is configured as a carbon steel steel bar sleeve. The carbon steel steel bar sleeve is one of the most commonly used steel sleeves, with high strength and rigidity. Its main components are carbon and iron, with high hardness and not easy to deform.

[0020] In this embodiment, please refer to Figure 1 and Figure 2 The inner wall of the connecting sleeve 1 is provided with an internal thread 4, and the outer walls of the ends of the first steel bar 2 and the second steel bar 3 close to each other are provided with external threads 5, the external threads 5 are adapted to the internal threads 4, and the sum of the lengths of the external threads 5 of the first steel bar 2 and the second steel bar 3 is greater than the length of the connecting sleeve 1. Through the coordinated use of the external threads 5 and the internal threads 4, the first steel bar 2 and the second steel bar 3 can be threadedly connected to the connecting sleeve 1 to realize the connection operation of the steel bars.

[0021] In this embodiment, please refer to Figure 1 and Figure 3 An observation assembly 6 is provided on the outer wall of the connecting sleeve 1, and the observation assembly 6 includes a circular groove 61, which is opened in the middle of the outer wall of the connecting sleeve 1, and an observation hole 62 is opened on the inner side of the circular groove 61. The observation hole 62 is connected to the interior of the connecting sleeve 1, and a hexagon socket bolt 63 is inserted into the observation hole 62 and the inner side of the circular groove 61. A threaded groove matched with the hexagon socket bolt 63 is opened on the inner wall of the observation hole 62, and the end of the hexagon socket bolt 63 is flush with the end of the circular groove 61. Through the coordinated use of the circular groove 61 and the observation hole 62, it is convenient to observe the center position in the connecting sleeve 1 during connection, so as to ensure that the connection between the first steel bar 2 and the second steel bar 3 is located at the center position of the connecting sleeve 1, so as to prevent the connection between the steel bars from being loose. The circular groove 61 and the observation hole 62 can be closed by the hexagon socket bolt 63 after the connection is completed.

[0022] Embodiment 2:

[0023] See also Figure 2 This embodiment is different from the first embodiment in that: a plurality of raised grooves 7 are provided on both sides of the outer wall of the connecting sleeve 1, and the raised grooves 7 are distributed in a ring array. Chamfers 8 are provided at both ends of the connecting sleeve 1. The raised grooves 7 can improve the strength of the connecting sleeve 1 and increase the friction force on its surface so that the connecting sleeve 1 can be screwed. The chamfers 8 at both ends of the connecting sleeve 1 can reduce stress concentration and increase the durability of the connecting sleeve 1.

[0024] 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 bridge steel bar connection sleeve protection structure, comprising a connection sleeve (1), a first steel bar (2) and a second steel bar (3), characterized in that: The first steel bar (2) and the second steel bar (3) are respectively inserted on both sides of the connecting sleeve (1); the inner wall of the connecting sleeve (1) is provided with an internal thread (4); the outer walls of the ends of the first steel bar (2) and the second steel bar (3) close to each other are both provided with external threads (5); the external threads (5) are adapted to the internal threads (4); the outer wall of the connecting sleeve (1) is provided with an observation assembly (6); the observation assembly (6) comprises a circular groove (61); the circular groove (61) is provided in the middle of the outer wall of the connecting sleeve (1); an observation hole (62) is provided on the inner side of the circular groove (61); the observation hole (62) is communicated with the interior of the connecting sleeve (1); and a hexagon socket head bolt (63) is inserted into the inner side of the observation hole (62) and the circular groove (61).

2. A bridge reinforcement connection sleeve protection structure according to claim 1, characterized in that: The inner wall of the observation hole (62) is provided with a threaded groove matched with the hexagon socket bolt (63), and the end of the hexagon socket bolt (63) is flush with the end of the circular groove (61).

3. A bridge reinforcement connection sleeve protection structure according to claim 1, characterized in that: The sum of the lengths of the external threads (5) of the first steel bar (2) and the second steel bar (3) is greater than the length of the connecting sleeve (1).

4. A bridge reinforcement connection sleeve protection structure according to claim 1, characterized in that: A plurality of raised grooves (7) are provided on both sides of the outer wall of the connecting sleeve (1), and the raised grooves (7) are distributed in a ring array.

5. A bridge reinforcement connection sleeve protection structure according to claim 1, characterized in that: Both ends of the connecting sleeve (1) are provided with chamfers (8).

6. A bridge reinforcement connection sleeve protection structure according to claim 1, characterized in that: The connecting sleeve (1) is configured as a carbon steel reinforcement sleeve.

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