A catenary pre-buried bolt positioning tool

Abstract

The utility model belongs to the catenary pre -buried bolt construction technical field, concretely is a kind of catenary pre -buried bolt positioning tool, including base template, the top fixed mounting of base template is equipped with positioning plate, the positioning plate is equipped with the through-hole for bolt passing, and the through-hole is equipped with the fixed component for fixing bolt.Just the utility model can guarantee the quick, accurate positioning of bolt, avoid the deviation of anchor bolt position in the process of pouring concrete, ensure that catenary column is installed in subsequent one-time in place.Catenary foundation protection device effectively protects the exposed thread of foundation pre -buried bolt, avoids the damage of subsequent construction to catenary foundation concrete and bolt thread.

Description

Technical Field

[0001] This utility model relates to the field of contact wire pre-embedded bolt construction technology; specifically, this utility model relates to a contact wire pre-embedded bolt positioning tool. Background Technology

[0002] Positioning the pre-embedded bolts for the overhead contact system is a crucial and highly precision-required task in railway electrification construction, directly impacting the accuracy, stability, and safety of subsequent overhead contact system support installation. The center position, diagonal distance, bolt spacing, verticality, and exposed length of the pre-embedded bolt group (usually a group of 4 or 6 bolts) must be strictly controlled within millimeter-level error ranges. Therefore, ensuring the installation accuracy and efficiency of the pre-embedded bolts is a key research and development direction in railway electrification construction. In light of this, this application provides a pre-embedded bolt positioning fixture for the overhead contact system. Utility Model Content

[0003] In view of this, the present invention provides a positioning fixture for pre-embedded bolts in contact wires, thereby solving or at least alleviating the above-mentioned problems existing in the prior art.

[0004] To achieve the aforementioned objective, this utility model provides a positioning fixture for pre-embedded bolts in a contact network, including a base template. A positioning plate is fixedly installed on the top of the base template. The positioning plate is provided with a through hole for the bolt to pass through, and a fixing component for fixing the bolt is provided in the through hole.

[0005] Preferably, the fixing component includes a first fixing sleeve and a second fixing sleeve, which are disposed in the through hole in a relative state. The opposite sides of the first fixing sleeve and the second fixing sleeve are provided with semi-circular threaded grooves, and the threads in the threaded grooves are configured to match the threads of the pre-embedded bolts.

[0006] Preferably, the first fixing sleeve is fixedly disposed in the through hole, the second fixing sleeve is slidably disposed in the through hole, the first fixing sleeve is provided with a fixing rod that can be raised and lowered, the second fixing sleeve is provided with a fixing hole for the fixing rod to be inserted from bottom to top, and when the fixing rod is inserted into the fixing hole, the threads in the two threaded grooves are in a connected state.

[0007] Preferably, a lifting rod is provided at the top of the first fixed sleeve, the lifting rod is fixedly connected to the fixed rod, and a baffle is rotatably connected to the top of the lifting rod, and the baffle can be positioned directly above the through hole by rotating towards the through hole side.

[0008] Preferably, the lifting rod includes a threaded sleeve and a threaded rod, the threaded sleeve is sleeved on the outside of the threaded rod, the baffle is rotatably mounted on the top end of the threaded rod, and the threaded sleeve is fixedly connected to the fixing rod.

[0009] Preferably, a connecting rod is inserted inside the first fixing sleeve, a connecting plate is fixedly connected to the bottom end of the connecting rod, the bottom end of the fixing rod is fixedly connected to one end of the connecting plate, a lifting plate is fixedly connected to the top end of the connecting rod, and the threaded sleeve is fixedly installed on the top of the lifting plate.

[0010] Preferably, an extension rod that penetrates the positioning plate is fixedly connected to the side of the second fixing sleeve away from the first fixing sleeve, and a spring is provided between the outer end of the extension rod and the outer side of the positioning plate.

[0011] Compared with the prior art, the present invention has at least the following beneficial effects: By employing contact wire foundation bolt positioning fixtures, rapid and accurate bolt positioning is ensured, preventing bolt misalignment during concrete pouring and guaranteeing that the contact wire columns are installed in place on the first attempt. The contact wire foundation protection device effectively protects the exposed threads of the foundation bolts, preventing damage to the contact wire foundation concrete and bolt threads during subsequent construction. Attached Figure Description

[0012] The disclosure of this utility model will become more apparent with reference to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This utility model Figure 1 Enlarged view of point A in the middle; Figure 3 This is a disassembled schematic diagram of the positioning plate and fixing components of this utility model.

[0013] Reference numerals in the attached drawings: 1-Basic template; 2-Positioning plate; 3-Through hole; 4-First fixing sleeve; 5-Second fixing sleeve; 6-Threaded groove; 7-Fixing rod; 8-Fixing hole; 9-Lifting rod; 91-Threaded sleeve; 92-Threaded rod; 10-Baffle; 11-Connecting rod; 12-Connecting plate; 13-Lifting plate; 14-Extending rod; 15-Spring. Detailed Implementation

[0014] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0015] like Figures 1 to 3As shown, this embodiment provides a positioning fixture for pre-embedded bolts in a contact network, including a base template 1. The base template 1 is composed of four side templates bolted together, and concrete is poured inside the base template 1 to form a concrete foundation. A positioning plate 2 is fixedly installed on the top of the base template 1. The positioning plate 2 is provided with through holes 3 for bolts to pass through, and a fixing component for fixing the bolts is provided in the through holes 3.

[0016] During use, after the foundation template 1 is installed, the pre-embedded bolts are directly passed through the through holes 3. After adjusting the height of the pre-embedded bolts to the preset height, the pre-embedded bolts are fixed by the fixing components. Concrete is poured into the foundation template 1. After the foundation is formed, the formwork is removed.

[0017] The contact wire pre-embedded bolt positioning fixture of this embodiment can ensure the rapid and accurate positioning of the bolts, avoiding misalignment of the anchor bolts during concrete pouring and ensuring that the contact wire columns are installed in place in one go. This contact wire pre-embedded bolt positioning fixture of this embodiment can effectively protect the exposed threads of the foundation pre-embedded bolts, avoiding damage to the contact wire foundation concrete and bolt threads during subsequent construction.

[0018] Optionally, the fixing component includes a first fixing sleeve 4 and a second fixing sleeve 5. The first fixing sleeve 4 and the second fixing sleeve 5 are arranged in a relative position in the through hole 3. The opposite sides of the first fixing sleeve 4 and the second fixing sleeve 5 are provided with semi-circular threaded grooves 6. The threads in the threaded grooves 6 are configured to match the threads of the pre-embedded bolts.

[0019] By adapting the threads in the two threaded grooves 6 to the pre-embedded bolts, the height of the pre-embedded bolts can be adjusted by rotating them during installation. On the other hand, the threaded grooves 6 and the threads of the pre-embedded bolts can be matched to achieve the effect of fixing the pre-embedded bolts.

[0020] Optionally, the first fixing sleeve 4 is fixedly installed in the through hole 3, and the second fixing sleeve 5 is slidably installed in the through hole 3. The first fixing sleeve 4 is provided with a fixing rod 7 that can be raised and lowered, and the second fixing sleeve 5 is provided with a fixing hole 8 for the fixing rod 7 to be inserted from bottom to top. When the fixing rod 7 is inserted into the fixing hole 8, the threads in the two threaded grooves 6 are in a connected state.

[0021] In this embodiment, the through hole 3 is a strip-shaped hole. The second fixing sleeve 5 moves within the through hole 3, allowing it to separate from the first fixing sleeve 4 during the insertion of the pre-embedded bolt. This facilitates bolt insertion. When the pre-embedded bolt is inserted to near the preset height, the second fixing sleeve 5 is moved to one side of the first fixing sleeve 4, and the pre-embedded bolt is slightly rotated to ensure the two threaded grooves 6 are fully engaged with the bolt. Then, the height of the pre-embedded bolt is fine-tuned by rotating it again until the preset height is reached. This improves the fixing efficiency of the pre-embedded bolt.

[0022] After adjusting the height of the pre-embedded bolt, insert the positioning rod into the positioning hole to lock the first fixing sleeve 4 and the second fixing sleeve 5, so that the threaded groove 6 stably engages with the pre-embedded bolt, achieving the positioning effect of the pre-embedded bolt.

[0023] Optionally, a lifting rod 9 is provided on the top of the first fixed sleeve 4. The lifting rod 9 is fixedly connected to the fixed rod 7. A baffle 10 is rotatably connected to the top of the lifting rod 9, and the baffle 10 can be positioned directly above the through hole 3 by rotating towards the through hole 3.

[0024] When the fixing rod 7 is inserted into the fixing hole 8, the baffle 10 rises to its maximum height, and the top of the pre-embedded bolt contacts the bottom of the baffle 10. At this time, the height of the pre-embedded bolt is the preset height. Therefore, by setting the lifting rod 9 and the baffle 10, it is easier to calibrate the height of multiple pre-embedded bolts, so that multiple pre-embedded bolts can be quickly adjusted to the preset height.

[0025] In actual operation, by rotating the pre-embedded bolt upwards, the top of the pre-embedded bolt pushes against the baffle 10 until the fixing rod 7 is inserted into the fixing hole 8. After that, the baffle 10 does not need to be pushed upwards anymore, and the pre-embedded bolt is at the preset height.

[0026] Optionally, the lifting rod 9 includes a threaded sleeve 91 and a threaded rod 92. The threaded sleeve 91 is located outside the threaded rod 92, and the baffle 10 is rotatably mounted on the top of the threaded rod 92. The threaded sleeve 91 is fixedly connected to the fixing rod 7. By rotating the threaded rod 92, the height of the baffle 10 can be adjusted, thereby allowing the height of the baffle 10 to be adjusted according to the construction requirements of the pre-embedded bolts and the preset height of the pre-embedded bolts.

[0027] A connecting rod 11 is inserted inside the first fixing sleeve 4. A connecting plate 12 is fixedly connected to the bottom end of the connecting rod 11. The bottom end of the fixing rod 7 is fixedly connected to one end of the connecting plate 12. A lifting plate 13 is fixedly connected to the top end of the connecting rod 11. A threaded sleeve 91 is fixedly installed on the top of the lifting plate 13. The connecting rod 11 passes through the first fixing sleeve 4 and the positioning plate 2. The cooperation of the connecting rod 11, the connecting plate 12, and the lifting plate 13 effectively connects the fixing rod 7, the lifting rod 9, and the baffle 10. Thus, by rotating the pre-embedded bolt to the top of the baffle 10, the fixing rod 7 can be inserted into the fixing hole 8 to lock the first fixing sleeve 4 and the second fixing sleeve 5, achieving the effect of fixing the pre-embedded bolt. At the same time, by rotating the pre-embedded bolt to the top of the baffle 10 until the baffle 10 rises to the point where it can no longer rise, the pre-embedded bolt can no longer rotate. At this point, the pre-embedded bolt has reached the preset height.

[0028] Optionally, an extension rod 14 passing through the positioning plate 2 is fixedly connected to the side of the second fixing sleeve 5 away from the first fixing sleeve 4. A spring 15 is provided between the outer end of the extension rod 14 and the outer side of the positioning plate 2. In the initial state, the elastic force of the spring 15 is applied to the second fixing sleeve 5 through the extension rod 14, so that the second fixing sleeve 5 remains in contact with the first fixing sleeve 4. At this time, the two threaded grooves 6 form a complete circle.

[0029] When inserting the pre-embedded bolt, the worker can directly pull the extension rod 14 outward to move the second fixing sleeve 5 away from the first fixing sleeve 4, making it easier to place the pre-embedded bolt. When the pre-embedded bolt is placed near the preset height, the extension rod 14 is released directly, and the spring 15 presses the second fixing sleeve 5 against the surface of the pre-embedded bolt. At this time, the pre-embedded bolt only needs to be slightly rotated. When the threads on the outside of the pre-embedded bolt are engaged with the threads of the threaded groove 6, the second fixing sleeve 5 and the first fixing sleeve 4 are threadedly connected to the pre-embedded bolt. At this time, the height of the pre-embedded bolt can be finely adjusted by rotating the pre-embedded bolt.

[0030] The technical scope of this utility model is not limited to the contents of the above description. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the scope of this utility model.

Claims

1. A fixture for positioning pre-embedded bolts in overhead contact lines, characterized in that, Includes a base template (1), on the top of which a positioning plate (2) is fixedly installed. The positioning plate (2) has a through hole (3) for bolts to pass through, and a fixing component for fixing bolts is provided in the through hole (3).

2. The contact wire pre-embedded bolt positioning fixture as described in claim 1, characterized in that, The fixing component includes a first fixing sleeve (4) and a second fixing sleeve (5). The first fixing sleeve (4) and the second fixing sleeve (5) are arranged in opposite positions in the through hole (3). The opposite sides of the first fixing sleeve (4) and the second fixing sleeve (5) are provided with semi-circular threaded grooves (6). The threads in the threaded grooves (6) are configured to match the threads of the pre-embedded bolts.

3. The contact wire pre-embedded bolt positioning fixture as described in claim 2, characterized in that, The first fixing sleeve (4) is fixedly disposed in the through hole (3), and the second fixing sleeve (5) is slidably disposed in the through hole (3). The first fixing sleeve (4) is provided with a fixing rod (7) that can be raised and lowered, and the second fixing sleeve (5) is provided with a fixing hole (8) for the fixing rod (7) to be inserted from bottom to top. When the fixing rod (7) is inserted into the fixing hole (8), the threads in the two threaded grooves (6) are connected.

4. The contact wire pre-embedded bolt positioning fixture as described in claim 3, characterized in that, The top of the first fixed sleeve (4) is provided with a lifting rod (9), which is fixedly connected to the fixed rod (7). The top of the lifting rod (9) is rotatably connected to a baffle (10), and the baffle (10) can be positioned directly above the through hole (3) by rotating towards the through hole (3).

5. The contact wire pre-embedded bolt positioning fixture as described in claim 4, characterized in that, The lifting rod (9) includes a threaded sleeve (91) and a threaded rod (92). The threaded sleeve (91) is located outside the threaded rod (92). The baffle (10) is rotatably installed on the top of the threaded rod (92). The threaded sleeve (91) is fixedly connected to the fixing rod (7).

6. The contact wire pre-embedded bolt positioning fixture as described in claim 5, characterized in that, A connecting rod (11) is inserted inside the first fixing sleeve (4). A connecting plate (12) is fixedly connected to the bottom end of the connecting rod (11). The bottom end of the fixing rod (7) is fixedly connected to one end of the connecting plate (12). A lifting plate (13) is fixedly connected to the top end of the connecting rod (11). The threaded sleeve (91) is fixedly installed on the top of the lifting plate (13).

7. The contact wire pre-embedded bolt positioning fixture as described in claim 3, characterized in that, The second fixing sleeve (5) is fixedly connected to an extension rod (14) that passes through the positioning plate (2) on the side away from the first fixing sleeve (4), and a spring (15) is provided between the outer end of the extension rod (14) and the outer side of the positioning plate (2).

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